Science Life - A blog of news and ideas in Biomedicine

Texting: A Doctor in Your Pocket?

Posted at 12:38 pm CT on November 21, 2011

textingTexting has grown from technological fad to a primary route of communication popular around the world. With cell phones in the pockets of people of all incomes and ages, the quick, no-frills conversations enabled by texting have made almost everyone more proficient with their thumbs. Due to such impressive ubiquity, people in health care are starting to ask whether text-messaging can be harnessed as a cheap and user-friendly tool for communicating with patients outside of the clinic - particularly hard-to-reach patients in urban and low income areas.

“People are ignoring that unlike every other technology, mobile phones reverse the digital divide,” said Shantanu Nundy, clinical instructor of medicine at the University of Chicago Medical Center. “More low income patients are using phones for text messaging and internet than other groups. So shouldn’t we then be developing technology for this type of population?”

Nundy and Jonathan Dick, a Pritzker graduate now in residency at Columbia University Medical Center, arrived independently at this same idea after separate trips overseas, where they saw clinics in Uganda and India using text messages as part of their operation. With texts, physicians could follow up with patients with chronic diseases, making sure they were taking medications and doing the types of self-examinations necessary to manage diabetes or HIV - tasks that are just as challenging at home as they are abroad. In some areas of Chicago the diabetes rate is as high as 25 percent, and African-American populations have much higher rates of diabetes complications such as blindness and amputation.

“It seemed to me that we had a lot of the same problems on the South Side of Chicago, so why not try it there?,” Dick said.

To test this premise, Nundy and Dick joined efforts with Medical Center faculty Monica Peek and Marshall Chin, who recently received grants from the Alliance to Reduce Disparities in Diabetes and the National Institutes of Health to look for new ways to improve outcomes in South Side neighborhoods. For a pilot study published last month in the Journal of Diabetes, Science, and Technology, the team recruited 18 African-American diabetes patients to try out a new automated text-messaging communication system that they programmed.

The study participants were not your typical teenage texters, instead reflecting an age range (38-72) more commonly afflicted with diabetes.

“If this is going to work, we needed to look at middle aged people and people in their 60s and 70s. I’m less interested in having this as a hip thing for teenagers with diabetes,” said Peek, assistant professor of medicine. “It needs to be able to work in people I see in clinic. A 55-year-old black woman with diabetes, if it works for her, I’m interested.”

Each participant was asked at the beginning of the study what kinds of text message they would like to receive, with candidates including reminders to take diabetes medications, check blood sugar, or conduct self-examinations to detect potential complications. Participants could also customize when they received the message, and how often they came in over the one-month pilot.

Some were purely notifications (i.e. “Please take your medications now.”) while others required a text response (”How many times did you check your feet this week?”). In one early sign that the messages were reaching their targets, participants often texted back whether a response was required or not, sending an “OK” or a “Thank you” message to what they knew was an automated system. The study reports, “Many participants found that they began anticipating the text messages and readying themselves to answer the questions in an affirmative way, such as preparing the insulin syringe ahead of the expected message.” That enthusiasm was reflected in surveys of the patients after the study period ended, where all but one participant said they were very satisfied with the text reminders.

“In the context of a population that typically has very few interactions with the health care system and may have experiences that are negative or bad or fearful, it was very fulfilling for them to have positive reinforcing messages where they really felt cared for by the system in a way they hadn’t in the past,” Peek said.

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Posted by - Rob Mitchum

Professionalism and Ethics, Day Two: Prize and Prejudice

Posted at 12:27 pm CT on November 17, 2011

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By John Easton

Even in the court of ethics and medical professionalism, there’s nothing wrong with the occasional honor or award. On day two of the conference, the Maclean Center awarded its first Prize in Clinical Ethics and Health Outcomes - at $50,000, the largest such prize in the ethics field - to John Wennberg, the Peggy Y. Thomson Professor for Evaluative Clinical Sciences at Dartmouth Medical School and founding editor of The Dartmouth Atlas of Health Care.

In 2007, the journal Health Affairs named Wennberg as “the most influential health policy researcher of the past 25 years.” Fitzhugh Mullan, former director of the Bureau of Health Professions in the U.S. Department of Health and Human Services, described Wennberg as “both the Christopher Columbus and the Johnny Appleseed of clinical variation,” meaning he not only discovered the field but also brought it to the attention of the medical and health policy communities.

“While John Wennberg is regarded as a health services researcher,” said Mark Siegler, MD, director of the MacLean Center, “his fundamental work on patient preferences and shared decision making highlight his contributions to the field of clinical medical ethics.”

The Dartmouth Atlas examines the patterns of medical resource intensity and utilization in the United States, with special emphasis on end-of-life care, inequities in the Medicare reimbursement system and the under-use of preventive care.

From the start, it has brought surprises, according to Kenneth Polonsky, dean of the Division of the Biological Sciences and the Pritzker School of Medicine at the University of Chicago, who introduced Wennberg. The report comprehensively documented the “striking differences” in the amount of health care provided in different regions, adding the provocative observation that the amount or cost of care delivered did not correlate with good outcomes.

Joking that “when you get paid so much to give a lecture, you get a little nervous,” Wennberg spoke about the early days of the Atlas and how their studies of practice variation in the mid-1970s “challenged the notion that science was driving utilization.” Instead, decisions about surgical treatment for benign prostate hyperplasia revealed what the researchers called “surgical signatures,” patterns of practice based on the beliefs of individual surgeons.

When Wennberg’s team developed short, balanced videos to show to patients, explaining the risks and benefits of surgical treatment and showing taped interviews with two physicians who had made different decisions, patients were much less likely to choose surgery. “This was the first evidence,” he said, “that engagement of patients could lead to the right utilization rate.”

However, only about 25 percent of medical care turns out to be so “preference-sensitive,” forming what Wennberg calls “little islands of rationality.” Studies of end-of-life care found a far more limited role for shared decision making between patients and their caregivers. Instead, demand for resources appears to be driven by supply. Empty hospital beds and unused capacity strongly correlate with increased medical care late in life. For example, more than twice as many patients were admitted to an intensive care unit in the last six months of life at UCLA compared to Dartmouth.

Wennberg described the four goals of the Atlas’s end-of-life team for the next five years: to better inform patient choices, improve the science behind these decisions, promote organized care and constrain undisciplined capacity spending. At this point, he said, “we don’t need more research, we need more action.”

Another session at the conference focused on a very different book, not an atlas but a historical novel, based on true events and real people. Open Wound: The Tragic Obsession of Dr. William Beaumont, by former ethics fellow Jason Karlawish, a professor of medicine and medical ethics at the University of Pennsylvania, examines the professional and ethical issues raised by William Beaumont, a 19th-century surgeon who cared for - and experimented on - a patient with a shotgun-blast-induced hole in his stomach. Beaumont saved the patient’s life, but then used this wound, which never quite healed, as a window to decipher the mysteries of digestion.

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Posted by - Rob Mitchum

The Many Faces of Medical Professionalism

Posted at 1:35 pm CT on November 16, 2011

siegler-scopeEvery patient wants their doctor to be a professional. But the broader concept of “medical professionalism” is not a cut-and-dry matter, as it opens the door to debates over how physicians interact with politics and society, the regulation of doctors’ ethical and legal behavior, and the role of the physician in the new world of health care. Those are large enough questions to warrant a year of discussion in the MacLean Center for Clinical Medical Ethics Seminar Series, and a centerpiece slot at the 23rd annual Dorothy J. MacLean Fellows Conference, held last week.

“In recent decades, there has been a renewed focus in medical education on professionalism being seen as a way to improve patient care, strengthen the doctor-patient relationship, reduce conflict of interest, improve physician self-regulation and ultimately to strengthen the alliance between medicine, patients, and society,” said Mark Siegler, Director of the MacLean Center, in his opening remarks.

If professionalism is too abstract, the themes on the first day of the conference could be simplified as what a doctor should and should not do in today’s tumultuous health care waters. Driving that instability is the ever-growing chunk of the world economy eaten up by the health care industry, said the conference’s first speaker, Arthur Rubenstein of the University of Pennsylvania (and formerly of UCMC). The United States spent $2.3 trillion on health care in 2009, he said, roughly equivalent to the GDP of France. With economies slowing around the world, those costs are unsustainable, and physicians must come together as a profession to work with patients and policymakers to find solutions that benefit all parties.

“We need to do something about that as a medical profession. If we don’t, the future is going to be quite problematic,” Rubenstein said. “If in the financial crisis which we are now surely in, at both the state and national level, the medical profession puts their own interests before those of patients - particularly the poor and elderly patients - our now privileged position in society will be given up, and our contract with society will be changed for the worse, and we may not recover in the foreseeable future.”

Participation was also one take-home message of Christine Cassel’s talk, which emphasized how the classical definition of the medical professional would have to evolve in the new health care landscape envisioned by last year’s Affordable Care Act. Cassel, the president and CEO of the American Board of Internal Medicine (and another former UChicagoan), said that the three primary goals of health care reforms are affordability, access, and quality. Creating a system that addresses all three will require balancing the intrinsic motivations of physicians to help patients with the extrinsic motivations of financial and regulatory oversight. A new kind of medical professionalism that accepts a health care system based around technology and teamwork will help the field achieve that balance with a minimum of pain, Cassel said.

“To my mind it’s a new kind of professionalism that leaves behind these old ideas of what the nostalgic profession was, and becomes committed to collaboration, evidence, measurement, and transparency so that it’s not at odds with accountability, but in fact becomes accountability,” Cassel said. “This is a challenge for many of us, and it’s going to take change.”

A case study of how that change can happen was presented by Troy Brennan, Chief Medical Officer for the pharmacy chain CVS. Brennan recapped efforts over the last decade to eliminate gifts from pharmaceutical companies to physicians at academic medical centers. While this practice was once thought to be innocuous by many physicians, others argued that it created a conflict of interest. In an example of extrinsic regulation to alter physician behavior, the American Board of Internal Medicine proposed that academic medical centers regulate these interactions between Big Pharma and physicians - an initiative supported by medical students. As a result, physician-industry relationships dropped, though a CVS study is still collecting data on whether that has affected prescription behavior, driving more doctors toward prescribing generics instead of brand name drugs.

Preserving physicians’ integrity and reputation is important for the role of the medical professional proposed by Paul Starr of Princeton University. In a time of ideological polarization and lack of trust in public institutions, it’s important for professionals to bring trustworthy knowledge to the public debate, Starr said, citing the recent Republican debate where candidate Michele Bachmann claimed a link between the HPV vaccine and mental disability.

“When prominent political figures make uninformed statements on national television about the effects of a vaccine, or distort the findings of researchers on a cancer screening test, then politicians may have a real, substantial impact on public understanding,” Starr said. “It is just at those moments when the scientific community should hold its ground and insist on abiding by the evidence.”

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Posted by - Rob Mitchum

Better Neighborhood, Better Health

Posted at 11:15 am CT on October 20, 2011

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By John Easton

Location, location, location. The three most important words in real estate turn out to be significant for health as well.

In today’s issue of the New England Journal of Medicine, a research team based at the University of Chicago show that low-income women with children who moved from high-poverty to lower-poverty neighborhoods experienced notable long-term reductions in diabetes and extreme obesity.

The research was the first to employ a randomized experimental design on a large scale to learn about the connections between neighborhood poverty and health.

For the study, Jens Ludwig and Stacy Lindau from the University of Chicago, and a team of scholars from around the country, studied 4,498 poor women and children, who from 1994 to 1998, enrolled in a residential mobility program called Moving to Opportunity.

The U.S. Department of Housing and Urban Development (HUD) operated MTO in five United States cities - Baltimore, Boston, Chicago, Los Angeles and New York.

MTO was based on the Chicago Gautreaux program, established in the late 1970s as part of a court-imposed public housing desegregation remedy. It was designed to study the effect of neighborhoods on employment, income and education in families with children living in cities with a 40% or greater poverty rate. It wasn’t originally focused on health, but Ludwig and his team were curious about how poverty in the U.S. correlated with health issues such as obesity and diabetes and they persuaded HUD to add the public health research component.

Moving to Opportunity enrolled low-income families with children living in distressed public housing. Families volunteered for the experiment, and based on the results of a random lottery, were offered the chance to use a housing voucher subsidy to move into a lower-poverty community. Other families were randomly assigned to a control group that received no special assistance under the program.

According to HUD: The four Chicago census tracts targeted for MTO had an average poverty rate of 67 percent and contained six public and assisted housing developments, which housed a total of 2,197 households. The average income among residents of the six targeted projects was $7,114, and over 75 percent of residents received some form of public assistance. Virtually all of these households were African American (99.4) and 70 percent were female-headed.

The NEJM study collected information during 2008-10 on families who had enrolled in the program 10 to 15 years before. The research team directly measured the heights and weights of MTO participants, and it also collected blood samples to test for diabetes.

At the time of follow-up, 17 percent of the women in the study’s control group were morbidly obese (body mass index at or above 40), and 20 percent had diabetes. However, in the group of women who were offered housing vouchers to move to lower-poverty neighborhoods, the rates of morbid obesity and diabetes were both about one fifth lower than in the control group.

“The initial aim of the study was to help families be safer, but it turns out there’s an effect on these really important health outcomes that’s in the ballpark of lifestyle and medical interventions,” Ludwig said. “That’s pretty striking,”

“This is one of the first studies to show that where you live - the circumstances of your neighborhood, the social characteristics of the people around you - all these things may play a role in your own health,” said Harlan Krumholz, a cardiologist at the Yale School of Medicine who was not involved in the study, during an interview with the Los Angeles Times. “Your health is not just what happens to you, but is influenced by all of those around you and the environment. … Some environments are toxic to health.”

“Giving a low-income woman the opportunity to move with her children to a less impoverished neighborhood appears to lower her risk of … two of the biggest health problems facing our country,” said Lindau, associate professor in obstetrics and gynecology, and an expert in urban health.

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Posted by - Rob Mitchum

The Voice Inside Diabetes Photos

Posted at 8:03 am CT on October 14, 2011

photovoice1Almost everyone has experienced the boredom of sitting through someone’s vacation photos, forcing a wan smile as a friend hands you picture after picture of beaches, museums, and old buildings. But if you’ve been to the same destination as your friend, there’s an allure to seeing how their experience of a particular place compares to your own. Discussing a gelato stand you both visited outside the Uffizi gallery in Florence or debating the merits of ocean-side vs. sound-side in the Outer Banks can bring a friendship closer. But can that communal photo-sharing power be captured and channeled into improving people’s health?

That concept is a novel component of assistant professor of medicine Arshiya Baig’s pilot project to improve diabetes outcomes in the Chicago Latino community, Picture Good Health/Imagínate una Buena Salud. Designed in cooperation with churches in the predominantly Mexican neighborhood of Little Village, Baig’s program offers focus group classes with Latinos diagnosed with diabetes, seeking to improve their diet, exercise, and disease control. At each of the eight weekly sessions, participants go through education, counseling, and activities to help manage their diabetes. But each meeting begins with a novel concept, called “photovoice,” that puts the storytelling potential of photography to use as a stimulant of healthy discussion.

“We thought we would do something fun, so we are giving disposable cameras to everyone in the intervention group, and they get to take photos of their life with diabetes,” Baig said. “Then each class starts off with a conversation around those photos. People can share stories, they can problem solve, and our class leader is trained to facilitate a conversation. It’s probably the most innovative part of the study.”

The concept of photovoice was not created by Baig, but it is typically used by researchers for different purposes. Typically, the idea of giving subjects cameras and asking them to document their situation is used as a “needs assessment” to help design an intervention. For example, one project asked teenagers in an urban area to photograph negative elements in their daily life and community. Researchers or policy makers could then look at those photos to find places where an intervention could make the largest impact, such as cleaning up abandoned buildings or providing more supervision during walks to school.

However, in Picture Good Health, the photovoice method is the intervention. Participants are told only to document things in their life that are relevant to living with diabetes. After the photos are developed, they can choose which ones to share with the group during the first half-hour of each week’s session. The photographer explains what the photo means to him or her, and then the group discusses from there.

Second-year Pritzker medical student Matthew Stutz joined Baig’s project this summer to start analyzing the photovoice component of the focus groups. He found that the participant’s photos covered a wide range of topics, from the obvious (food, diabetes medications) to more general influences such as their home, workplace, neighborhood, and family. A photo of loaves of white and wheat bread might kick off a group discussion of health grocery choices, or a picture of an ashtray could trigger participants to talk about the methods they have used to try and quit smoking. One man shared a picture of a park and said it reminded him of his deceased daughter, inspiring the other participants to talk about family members they had lost - a topic that wouldn’t typically be on the agenda for a diabetes intervention.

“I think of photovoice as an easy mechanism for someone to convey emotions, experiences, losses, gains, without having to verbalize it,” Stutz said. “By having a prop or a mechanism to share, I feel we can gain a lot more ground and depth and conversation.”

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Posted by - Rob Mitchum

Breaking Ground on the Neuropsychiatric Data Mine

Posted at 2:06 pm CT on October 6, 2011

conte-graphicBiology used to be the scientific discipline where data was at a premium, a rare resource painstakingly collected in the field or the laboratory. But today’s biologists are confronted with a flood of data, a fire-hose torrent of genetic and clinical information that only builds with the spread of fast sequencing and electronic medical records. But as these databases fill terabyte after terabyte of computer storage, the successful transformation of that data into practical information about human biology and disease has lagged behind. Genome-wide association studies (GWAS) have  explained only a small percentage of disease heritability, clinical records remain largely unstudied on a large scale, and the complications created by environmental influences and multi-gene disorders have frustrated scientists.

Into this impasse comes a new multi-institutional project based at the University of Chicago: the Silvio O. Conte Center, funded by a nearly $14 million combination of grants from the National Institute of Mental Health and the Chicago Biomedical Consortium. Led by Andrey Rzhetsky, professor of medicine and human genetics at the Medical Center, the collaboration of 15 scientists from 7 institutions will apply the power of advanced computation and data-mining to the growing tide of data collected about neuropsychiatric disorders. The trick will be to not just focus on one database, be it genetics or environmental factors or clinical outcomes, but all of them at once, creating a higher-resolution image of what goes awry in the brain to cause mental disease.

“A great deal of data already exists, yet nobody is already looking at it the way we plan to do and we have very smart people on this team,” said Rzhetsky, who is also a senior fellow of the Computation Institute at the University of Chicago and Institute for Genomics and Systems Biology. “When you have multiple communities that partially study the same subject you can get a kind of three-dimensional picture of a phenomenon.”

Rzhetsky has previously demonstrated the promise of data-mining - the discovery of patterns and information in large pools of data - using clinical records and scientific literature. In a 2007 study, his team examined 1.5 million patient records and found significant overlap between mental disorders such as schizophrenia, bipolar disorder, and autism, suggesting a similar overlap of the genetic factors that cause these conditions. Two years later, Rzhetsky and colleagues applied text-mining computation to the scientific literature database PubMed, creating a network of genes and biological interactions associated with cerebellar conditions such as ataxia and degeneration.

Beyond demonstrating the potential of data-mining, those studies also shed light on the hazy borders separating different psychiatric disorders. While the overlaps could complicate psychiatric diagnosis in the clinic, they might also make the disorders susceptible to the multi-faceted approach proposed by the Conte Center.

“Most studies are done one disorder at a time, and that’s like studying the trunk or the hoof or the tail of an elephant; you might miss the big picture,” said Benjamin Lahey, Irving B. Harris Professor of epidemiology at the University of Chicago and a co-investigator at the Conte Center. “This project will enable us to look at things in a way that has never been done before, at a scale that dwarfs anything that’s ever been done.”

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Posted by - Rob Mitchum

A Pritzker Grad Joins the Nobel Club

Posted at 12:23 pm CT on October 4, 2011

beutler-md-81-3The University of Chicago can fill a couple of classrooms with all of the Nobel Laureates affiliated with the school, from Milton Friedman to Saul Bellow to Barack Obama. After Monday, a third room might have to be opened up, as Pritzker School of Medicine graduate Bruce Beutler became the 86th member of the exclusive club. Beutler, who graduated from our medical school in 1981, was honored with this year’s Nobel Prize in Physiology or Medicine, along with Jules Hoffman and Ralph Steinman. The three scientists were credited with advancements in the field of immunology that have paved the way for new strategies fighting infections, cancer, and other diseases.

“I thought it was possible, but nobody can count on winning the Nobel Prize, so I’m just ecstatic,” Beutler, now at University of Texas Southwestern Medical Center, told the Chicago Tribune.

In the confusing calculus of the Nobel, Beutler and Hoffman split half of the total award for research on the innate immune system, known as the first line of the body’s defenses against infectious invaders. In the late 1990’s both scientists’ laboratories were looking for immune receptors that respond to signals on the surface of bacteria - Hoffman looking in fruit flies with genetic mutations, Beutler in mice. Within two years of each other, Hoffman discovered a fly mutant named “Toll” involved in the response to an infection, and Beutler found a similar gene in mice for a receptor (named, appropriately, the “Toll-like receptor”) that binds to lipopolysaccharide (LPS), a signal on the surface of bacterial cells.

These findings opened the floodgates to learning about new players in the innate immune system, including the discovery of a dozen more Toll-like receptors that recognize various pathogen signals - what some call “the eyes of the immune system.” Clinically, mutations in these genes can lead to either increased susceptibility to infection (if the innate immune system is too weak) or autoimmune and inflammatory disorders (if the innate immune system is too strong). Drugs that target this system might therefore be promising for the treatment of many different diseases.

“I think the most hopeful line or realm is in inflammatory and autoimmune disease,” Beutler told the Nobel website. “Inflammation is something that evolved to cope with infection, and when we speak of sterile inflammatory diseases like rheumatoid arthritis and autoimmune diseases like lupus, probably some of the same pathways are utilized. It may very well be that by blocking TLR signalling you’ll have very specific therapies for those kinds of diseases.”

Beutler said that he received the news in bed, waking up in the middle of the night and reading an e-mail on his cell phone.

“I was a little bit disbelieving, so I went downstairs to look at my laptop,” Beutler said. “I went to Google News and saw my name there, so I knew it was real.”

At the University of Chicago Medical Center campus, the news quickly spread among former colleagues and teachers of Beutler, as well as scientists that who work in his field.

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Posted by - Rob Mitchum

Rebuilding the Doctor-Patient Relationship

Posted at 8:16 am CT on September 23, 2011

bucksbaum-panelMedical students spend the first half of their education learning anatomy and physiology, and the second half applying that knowledge in the hospital. But where in that process do they learn the very important skill of listening and talking to their patients? In the panel discussion that followed yesterday’s announcement of The Bucksbaum Institute for Clinical Excellence, it was clear that even physicians who graduated from medical school decades ago remember exactly when and from whom they learned those important lessons. In some cases, that mentor was sitting just a few feet away, such as when Mark Siegler spoke of his time as a medical student learning from the now 102-year-old Joseph Kirsner.

“The way you learn medicine is by seeing, not by talking. You have to show what good care is about. I learned from studying people like Joe,” Siegler said. “Joe told us that everything was important, [including] science and clinical inquiry, but patients came first, patients were the absolute first priority.”

The Bucksbaum Institute, made possible by a $42 million pledge from The Matthew and Carolyn Bucksbaum Family Foundation, has borrowed that sentiment as its defining principle. Teaching bedside manner may not be as straightforward as teaching biology, but creating a system of mentorship can help experienced physicians pass lessons down to young and aspiring doctors. Perhaps with serendipity, the panel represented that kind of mentorship family tree, with Dr. Siegler seated next to his former trainee Holly Humprey, dean for medical education, and Dr. Humphrey adjacent to current Pritzker 4th-year medical student Rebecca Levine.

[Watch video of yesterday's announcement and panel discussion.]

Each panelist and speaker at the event talked about the doctor-patient relationship as a phenomenon under threat in the modern health care system. Though better tests, treatments, and procedures have saved and extended countless lives, an increased reliance upon technology can interfere with the “old-fashioned” methods of taking a good patient history and answering patients’ questions.

“We were always taught that 90 percent of the diagnosis in medicine was based on what the patient tells you,” said Kenneth Polonsky, dean of the Division of the Biological Sciences and the Pritzker School of Medicine. “There are tendencies on the part of physicians to rely more on technologies than on what the patients tell them, their interactions with patients, and what they learn at the bedside.”

It makes sense then to start with doctors-in-training, and the foundation of the Bucksbaum Institute is the financial support of three to five new medical students a year as Bucksbaum Student Scholars [read more on the Insitute's organization in the FAQ]. Because of the Pritzker School of Medicine’s reputation as a “teacher of teachers,” (30 percent of Pritzker graduates go on to faculty positions at academic medical centers, Humphrey said), the hope is that the emphasis on doctor-patient communication seeded at the University of Chicago will spread around the country.

“This gift allows our medical school to make a very public statement to our students at the time they are applying to medical school and then during their experience in medical school, that the doctor-patient relationship is fundamentally important in the education of a physician,” Humphrey said. “Then, upon graduation, our students populate schools across the country and carry on that Bucksbaum tradition wherever they go.”

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Posted by - Rob Mitchum

A Generous Gift to Improve Patient-Doctor Communication

Posted at 7:54 am CT on September 22, 2011

u-of-c-2In the physician’s office, the communication between doctor and patient can be just as important as any medical exam or test. To set a patient on a healthy path, a doctor must explain diseases and treatments in a manner that is accessible and relevant to each individual. The conversation must also be a two-way street, with the doctor listening to the patient instead of merely lecturing. In the increasingly technical and hurried world of medicine, more and more of that critical interaction is lost to 10-minute appointments and physician switching.

To counter that trend, an exciting new institute was announced at the Medical Center this morning. The Bucksbaum Institute for Clinical Excellence at the University of Chicago will be made possible by a $42 million pledge from The Matthew and Carolyn Bucksbaum Family Foundation. The institute, inspired by the relationship between the Bucksbaums and their long-time physician Mark Siegler, will focus on how to improve doctor-patient interaction and train the next generation of doctors how to be advisers, counselors, and navigators for their patients.

“These generous donors have pinpointed a fundamental aspect of medical practice that deserves greater attention,” said Kenneth S. Polonsky, MD, dean of the Division of the Biological Sciences and the Pritzker School of Medicine at the University of Chicago. “They are giving us the resources to concentrate on training physicians who not only possess extraordinary technical knowledge but can work effectively with patients to reach the best clinical decisions.”

An announcement ceremony this morning will be followed by a panel discussion of the patient-doctor relationship and patient outcomes, with Siegler, dean of medical education Holly Humphrey, and Pritzker medical student Rebecca Levine participating. That event will be webcast live, and coverage will follow here on the blog this afternoon. In the meantime, you can read more about the institute at the New York Times, hear a story about it at WBEZ, and watch the official announcement video below.

Posted by - Rob Mitchum

Breast Cancer in Isolation

Posted at 10:27 am CT on September 12, 2011

game-cardsLoneliness can be deadly. In humans, there is a statistical relationship between social interaction and mortality - the more isolated you are, the lower your chances of living a long life. Rats kept in social isolation their entire life die at a younger age than littermates who lived in groups closer to their natural social structure. But how exactly does isolation kill a rat? Under normal conditions, an infectious disease such as pneumonia is typically the cause of earlier mortality in a lonely rat. But when rats are kept in the sterile conditions of a laboratory animal facility, the cause of death is something quite surprising: breast cancer.

Those experiments - conducted by the group of Martha McClintock, professor of psychology at the University of Chicago - sparked a fruitful collaboration between McClintock and Suzanne Conzen, professor of medicine and a cancer expert. Last week, McClintock and Conzen gave a tag-team talk at the Chicago Breast Cancer SPORE seminar to present an overview of their research into the connection between social isolation, stress, and breast cancer, a line of study that could flip the current thinking about the disease. Traditionally, the psychological and social effects of breast cancer are considered to be the consequence of its diagnosis and treatment, but the research of these two laboratories suggests that these factors could be a cause as well, just as much as genetics or other biological sources.

“What I brought to the classic traditional approach is trying to flip it on its head,” McClintock said, “where you recognize that there are truly social forces which then change the psychological states of individuals in those interactions, and in turn their hormone function, cell receptors for those hormones, and then ultimately changes in gene expression.”

The link between the two labs was made over a hormone known for its role in stress responses, cortisol. McClintock observed that solitary rats behaved more anxiously than their group-housed peers, and found that they exhibit a larger and prolonged cortisol increase after a stressful event. Conzen’s laboratory was already studying the role of a receptor for cortisol, the glucocorticoid receptor (GR), in breast cancer, because women with the harder-to-treat “triple negative” form of the disease often show increased GR levels. Researchers in Conzen’s laboratory discovered that activating GRs can stimulate proliferation of breast cells and block the effects of chemotherapy drugs.

Could this be the missing biological step between isolation stress and breast cancer? At the lecture, Conzen tagged back to McClintock to talk about experiments on the tumors from her socially isolated rats. Unlike more common animal models of breast cancer where the tumor is instigated by a toxin or a genetic mutation, the naturally-occurring tumors in isolated rats show a similar diversity to that seen in human tumors. Some rats grow benign tumors, some malignant, and different tumors have the different hormone receptor profiles that are used for classification and treatment choices in patients - including, in some cases, glucocorticoid receptors.

“This to me was very exciting because in the rat model we have a good model of the diversity of breast pathology that happens [in humans] and it is increased by isolation,” McClintock said. “I was happy to see it in the more natural, spontaneously-occurring cancer model rather than something that was induced.”

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Posted by - Rob Mitchum

Rewriting the Book on the Brain

Posted at 7:46 am CT on August 31, 2011

medical-neurobiologyStudents might sometimes think that their textbook appeared out of thin air, the accumulated knowledge of a field spontaneously forming into a heavy slab of facts and figures. But textbooks are like any other type of book, with flesh-and-blood authors who labor over the words within and make a million tiny decisions to shape the final product. If you try to include everything, the book will likely be too heavy for even the most determined or muscular students to carry. Cut too much out, and your definitive textbook might be scorned as incomplete and elementary.

In writing her new textbook, professor of neurobiology Peggy Mason helped find the happy middle by starting with a very specific audience in mind: the medical students that she has spent 15 years teaching at the Pritzker School of Medicine. Her completed product, simply named “Medical Neurobiology,” is the first designed with aspiring physicians in mind, teaching med students about the broad influence of the central nervous system. Picking a specific target audience helped Mason make the hard choices about what to include and what to leave out, she said - even if the final 660 pages is heavier than she intended.

“I think it’s actually the only textbook completely aimed at the medical students,” Mason said. “I did a few things because of that that no other textbook does.”

For starters, Mason chose not to interpret “medical neurobiology” as simply “neurology.” Only a small percentage of medical students will eventually choose to train as neurologists, but the other 97 percent also need to be familiar with the central nervous system, she said. Knowing the anatomy and function of the brain, spinal cord, and nerve pathways can help everyone from future neonatologists measuring infants’ reflexes to future pulmonologists treating asthma to future geriatricians looking for the warning signs of dementia or motor deficits.

Another important decision came to Mason after a dinner with four medical students who gave her insight into the overwhelming workload of an aspiring doctor.

“All of a sudden I just realized that the immensity of the knowledge base that they need to acquire in two years,” Mason said. “It made me think anew about what we were teaching them, and I decided that as entertaining as it may be for us to talk about the newest, greatest research, it’s a disservice to them. They don’t have the time; they need the body of information that they need clinically and not the extraneous stuff. So I tried to cut out as much as I could.”

Mason kept the page count down by restricting the coverage wherever possible to topics of clinical relevance, leaving out popular neuroscience textbook subjects such as the fundamentals of smell and leech swimming (a common model for the neurobiology of locomotion). Instead, she focused on the anatomical regions where patients are most likely to suffer lesions that cause symptoms, and the neurotransmitter imbalances that cause behavioral changes. Pop-out boxes describe the clinical manifestations physicians are likely to see, such as the pupil constriction and droopy eyelid of Horner syndrome, which indicates damage to a specific pathway from the brain to the eye.

But to really help important neurobiology topics take up permanent residence in the minds of medical students, Mason deployed an armory of inventive examples and metaphors to make the text both enjoyable to read and memorable.

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Posted by - Rob Mitchum

Linkage 8/19: 1200 Patients, Stressed-Out Finches

Posted at 10:43 am CT on August 19, 2011

The future of genetic medicine comes in many flavors, from the discovery of the rare mutations responsible for uncommon diseases to the cataloging of variants that may be responsible for common diseases such as high blood pressure and diabetes. A segment from last night’s ABC 7 Chicago news focused on both aspects of this potential, jumping from a young man in Utah with Miller Syndrome to the 1200 Patient Project of the Medical Center’s Mark Ratain and Peter O’Donnell. Results from the project, currently underway, could help physicians customize medical treatments for individual patients, maximizing effectiveness while reducing side effects. As the segment says, if we really are heading toward a future where every patient has their genetic code read as routinely as they receive a doctor’s check-up, such research will be essential for unleashing the power of genetic medicine.

When the media hypes the healthy effects of drinking red wine in moderation, they’re talking about resveratrol, the chemical responsible for wine’s benefits. Scientists have long tested whether isolating that chemical can turn it into a super-pill for good health and long life without the alcoholic “side effects” of its normal route, with mixed results. But a new study featured in the New York Times this morning finds an intriguing benefit of a resveratrol derivative called SRT-1720. Obese mice given the experimental drug lived 30 percent longer - as long as control mice - rather than expiring earlier from obesity-related diseases such as fatty liver and diabetes. As the article states, such a drug may represent “more a moral hazard than an incentive to good health,” seen by some as a way of avoiding the consequences of excess. But with trials of the drug in humans still in their earlier stages, the ethical discussions will have to wait on the science.

Since our piece remembering famed bio-statistician Paul Meier ran last week, two more fine obituaries of the UChicago professor emeritus have appeared. Read the Chicago Tribune take to learn what instrument Meier learned to play at the Old Town School of Folk Music, and the New York Times version for the context of how Meier changed randomization in clinical trials forever.

Living shoulder to shoulder (or even closer, on the subway) in an urban environment feels like a particularly modern phenomenon. But as friend of the blog Tim de Chant explains in his guest blog at Scientific American, human societies have concentrated themselves since even the prehistoric hunter-gatherer days. For more of Tim’s great writing on the science of population density, visit his Per Square Mile blog.

Stress can have all sorts of negative effects on your health, but what about the stress of your spouse or partner? Not Exactly Rocket Science looks at a study in finches that suggests a high-strung life mate could actually shorten your life.

Posted by - Rob Mitchum

Finding the Muslim View on Medicine

Posted at 2:13 pm CT on August 15, 2011

sultanahmed_kneelMuslims are the fastest-growing religious minority in the United States, with over 7 million Americans declaring themselves as followers of Islam and more than 2,000 mosques nationwide. But in spite of the numbers, little data has been collected about American Muslims’ beliefs about health and disease, or their experience in the U.S. health care system. One reason for this also lies within the demographics, as American Muslims are a particularly diverse minority, containing South Asians, Arabs, and African-Americans, as well as both recent immigrants and long-term, multiple-generation natives. With such a wide variety of members from different ethnic, racial, and socioeconomic backgrounds, how does one pin down the health care experience of American Muslims?

The only way, thought Aasim Padela, was to talk to all of them - or at least representatives from each of the major groups in the American Muslim community. For his recent report, “Meeting the Healthcare Needs of American Muslims,” Padela and his colleagues at the Institute for Social Policy & Understanding went to the rich Muslim community of southeastern Michigan, one of the largest Muslim populations in the United States. Reaching out to multiple mosques and holding focus groups with over a hundred participants, the group looked for common denominators of people who share the Islamic faith, but perhaps little else.

“We looked at American Muslims as a conglomerate and asked what was common,” said Padela, assistant professor of medicine and director of the Initiative on Islam and Medicine at the University of Chicago. “We wanted to talk to each of these three large groups, which we know comprise the majority of American Muslims, and look at what’s similar in terms of health care challenges and beliefs. What we found as similar is something we can attribute to their faith.”

The final product was a fascinating piece of medical anthropology, a snapshot of how American Muslims view their own health or illness, the struggles they face in the U.S. health care system, and their solutions for establishing stronger communication between their faith and their medical caretakers. In an environment where physicians are expected to meet their patients halfway on ways to prevent and cure disease, understanding the perspective of a community that is already large, and growing larger, is an important first step toward improved care.

One primary finding of the report describes the “medical narrative” of American Muslims, their views on where disease comes from and the most effective strategy for fighting it off. Many participants in Padela’s focus groups believed that God takes an active role in health and illness, perceiving conditions from a winter flu to breast cancer as divinely ordained.

“Most participants perceived illness through a religious lens as predestined,” the authors wrote, “a trial from God by which one’s sins are removed, an opportunity for spiritual reward, a reminder to improve one’s health, and sometimes a sign of personal failure to follow Islam’s tenets.”

One might think that treating such a patient would be difficult for a physician, faced with a patient that believes they are being religiously challenged through their illness. But Padela said that a closer understanding of Islam refutes these fatalistic notions, and that most Muslims agree that health issues are best confronted with a combination of spiritual and medical healing.

“God also says to take care of your body, and that means you have to go to people in this world,” said Padela, who conducted the research as a Robert Wood Johnson Foundation Clinical Scholar at the University of Michigan. “Doctors are a part of that, but only a part. Imams play a big role in healing, in the sense that they help you understand disease and illness.”

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Posted by - Rob Mitchum

Linkage 8/12: Physicians of Tomorrow & Molecular Furniture

Posted at 9:17 am CT on August 12, 2011

laurablinkhorn-forwebMedical school isn’t cheap. Today, medical students graduate with an average debt over $155,000, and the need to pay off those mortgage-sized loans drives many a young doctor away from more modestly compensated but sorely needed fields such as primary care and family medicine. To alleviate this financial pressure, many organizations have started scholarships to help with the med school tuition bill, rewarding scholastic achievements and commitments to work in underserved populations. The American Medical Association’s Physicians of Tomorrow program is one such effort, and this week’s announcement of the 2011 recipients [pdf] carried a heavy Pritzker School of Medicine presence.

maggiemoore-forwebTwo of the 18 (11 percent, but who’s counting) fourth-year medical students receiving the $10,000 scholarship were from the University of Chicago’s medical school. Laura Blinkhorn (left) and Maggie Moore (right) are the two very impressive Pritzker students among the recipients, each with very impressive biographies already built in their young careers. Blinkhorn has done work with South Side neighborhoods as part of the Pritzker Summer Service Partnership, works with the Washington Park Free Children’s Clinic, and is planning to spend 3 months of the next year doing a clinical rotation in the African country of Gabon. Moore volunteered at the Maria Shelter Clinic for Women and Children and the South Side “Girls on the Run” program, and somehow finds time to write poetry about her medical experiences. Because of poems such as “Cadaver Memorial” and a collection called “A Third Year’s Life in Lyrics,” Moore was given the Johnson F. Hammond, MD Scholarships supporting medical journalism by the AMA. Congrats!

New Furniture for Molecular Engineering

When you are building a new house, you’re gonna need some furniture. The same thing goes for building a new research institute - before you can fill it with people, you need somewhere for them to sit. The University of Chicago’s Institute for Molecular Engineering, which was born in December and acquired a leader in March, has this week announced four named professorships made possible by anonymous donations. The funded positions give the institute the power to recruit prominent researchers to help realize the institute’s unique vision blending biology, chemistry, and physics.

“The big job in front of us is to bring together people with expertise in broadly applicable areas of enabling technology, such as synthesis of new materials, biological engineering, new ways of doing computing and quantum information science,” said Matthew Tirrell, the founding Pritzker Director of the Institute for Molecular Engineering and senior scientist at Argonne.

Elsewhere…

The San Diego Union-Tribune Keith Darcé wrote an excellent overview of the Earth Microbiome Project, the global study of the world’s bacterial populations that has previously been featured on the blog. Our own Jack Gilbert is featured (he mentions their current project swabbing bacteria from the animals of the San Diego Zoo), and an interesting hunt for bacteria able to survive in high-salt conditions is also explained.

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Posted by - Rob Mitchum

Sexual Identity, Health, and Stigma in India

Posted at 8:15 am CT on August 11, 2011

indiarountableimageLast November, a barrier was broken in the prolific Bollywood film industry of India. A film called Dunno Y featured the first on-screen male-male kiss - a provocative scene in a country that only the year before repealed a law making homosexuality illegal. Many tagged the film as India’s version of Brokeback Mountain, a controversial and progressive step in depicting male-male romance in popular culture that reflected a growing social acceptance of homosexuality. But the full significance of those cultural changes in the South Asian country have yet to be studied, and will require perspectives from law, anthropology, medicine, and more.

Just such a discussion will take place this Saturday morning at the University of Chicago and on the internet in the roundtable event, “Sexual Identity, Health and Stigma in India: Traditional Statuses and Western Influences.” Organized by John Schneider, assistant professor of medicine and epidemiology at the University of Chicago Medical Center and director of Global Health Programs, the discussion will be available worldwide on a webcast broadcast by the UChicago Facebook page, the Global Health Initiative website, and here on ScienceLife (watch this space).

“What I tried to do is bring together scholars from a number of different disciplines to make this a truly interdisciplinary discussion,” Schneider said. “I want it to be like a Sunday morning news program - but smarter - where a topic area is chosen and everybody fires away with their background about it, leaving room for remote viewer input.”

The central topic of whether sexual identity in India is truly shifting can be addressed from any number of angles. There’s the legal status of homosexuality after the 2009 repeal of Section 377 of the Indian Penal Code by the High Court of Mumbai. Or the sexual and mental health consequences after centuries of stigmatization of men having sex with men, including the spread of HIV and other sexually transmitted diseases. Or the pop culture ripples, such as Dunno Y, that may reflect changing attitudes and sexual roles in Indian culture. All of which are set against the backdrop of a country rapidly modernizing and playing an increasingly powerful role in global economy and society.

“I think that India is going through tremendous social and cultural changes as it emerges from what would be, in old terms, a less-developed economy to now becoming something of an economic powerhouse,” said Niranjan Karnik, assistant professor of psychiatry and behavioral neuroscience and another participant in the event. “This has the potential to really change the dynamics of the society and change the way people see themselves and behaviors.”

The participants in the roundtable are all accomplished researchers and experts on India. The keynote speaker, Lawrence Cohen of the University of California, Berkeley, studies medical anthropology in the country, and has written on homosexuality, aging, and organ transplant markets. Philip Kumar and Sanjay Srivastava are researchers based in India studying sexuality and advising the government on health issues related to men who have sex with men. Schneider himself has an extensive project underway in Indian truck drivers, where he is using cell phones in building a network of men who have sex with men to study their behavior and identify potential peer outreach points.

“One of the issues we are looking at is what changes in sex position roles might be occurring over time in India,” Schneider said. “Is a Western identity rubbing off on India, or is it developing a new identity? My work will help address those questions because of the cell phone network data that triangulates often sensitive self-reported data,” Schneider said.

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Posted by - Rob Mitchum