News on doctoral training and the researchers it produces. Covers PhD and fellowship programs, physician-scientist training, and major training investments.
Harvard Medical School establishes three endowed chairs in sleep medicine, marking an historic moment for the school and the field. The chairs will enable advanced scientific research and development of new treatments for sleep disorders.
Researchers discovered a genetic mutation that interferes with heart muscle contraction, leading to defective heart valve formation. This study suggests that temporary glitches in early heartbeat may cause valve defects, potentially leading to new treatments for congenital heart defects.
A recent study analyzing over 1,700 surgeries found that open surgery was more effective than laparoscopic repairs for treating groin hernias. The study also revealed that surgeons' experience with the procedure played a significant role in its success.
Researchers discovered a novel screening approach that identified a compound, GS4012, which suppresses a genetic mutation in zebrafish embryos. The compound promotes vascular growth and may have implications for diseases such as heart attack, stroke or injury.
Most long-stay nursing home residents spend a significant amount of time in bed, even in facilities with low restraint levels. The study estimates that typical residents in high-restraint homes spend 19-20 hours in bed daily.
The Johns Hopkins Bloomberg School of Public Health has been awarded $3.9 million to assess the Afghan health system and develop a new financing system. The evaluation system will measure progress in providing basic health services, particularly for vulnerable populations like women and children.
A large-scale Swedish study found that low vitamin B12 levels are associated with poorer memory in older adults with a high risk of developing Alzheimer's disease. The study also showed that genetic factors, such as the apolipoprotein E gene, interact with nutritional deficiencies to affect cognitive function.
A study found that equol, a natural metabolite from soy isoflavones, blocks the effects of DHT without altering testosterone levels, reducing prostate size in rats. This molecule may offer a treatment for BPH and prostate cancer, as well as promoting healthy skin and hair growth.
A report by the International Zinc Nutrition Consultative Group finds that zinc deficiency affects millions worldwide, particularly in developing countries. It highlights methods for assessing population zinc status and potential strategies for controlling nutritional deficiencies through supplements and public education.
Researchers discovered the ING4 gene's significant reduction in glioblastomas, which led to faster growth and complex blood vessel networks. The study found that ING4 suppresses angiogenesis by inhibiting NF-kappa B, offering potential targets for glioma treatment.
The study found that astronauts lost bone at a rate of 0.8-0.9 percent per month, with trabecular bone loss being more significant than cortical bone loss. The researchers used three-dimensional x-ray computed tomography to quantify bone loss in the hip and estimate changes in hip bone strength.
A new tool, CHIP-CE, assesses child health from their own perspective, predicting future healthcare use. The questionnaire is designed for ages 6-11 and has been shown to be reliable and valid in diverse areas of the US.
The Gerontological Society of America offers the $10,000 Maxwell A. Pollack Award to recognize significant contributions to geriatrics and gerontology. Nominations include a resume, narrative, and policy/practice change examples.
A panel discussion at Stanford Medicine explores thorny issues posed by technology, including non-traditional families and reproductive cloning. The discussion aims to address concerns over the responsible use of new reproductive and genetic technologies.
Researchers have identified wound-healing genes that are active in prostate and liver cancers, which are more aggressive and likely to spread. This discovery could lead to personalized treatment options by matching patients with specific drugs targeting these abnormal proteins.
Researchers found that low to moderate alcohol consumption is associated with decreases in brain size, but does not lower stroke risk. The study involved 1,909 men and women aged 55+, and used MRI scans to measure brain changes linked to increased stroke risk.
Research by Stanford researcher Thomas Rando and postdoctoral scholar Irina Conboy found that older muscles produce less Delta after injury, leading to slower regeneration. However, artificially activating Delta in older muscles restored regenerative ability comparable to younger muscle, suggesting a potential therapeutic target.
A UCSF study reveals that homeless individuals, particularly women and transgender people, experience high rates of sexual and physical assault. The study found that nearly 12% of transgender people and 9.4% of women reported being sexually assaulted in the past year.
Several commonly used pesticides are toxic to mitochondria in laboratory experiments, causing cellular damage that may contribute to diseases such as Parkinson's. The study found pyridaben to be the most potent toxic compound, followed by rotenone and fenpyroximate.
A new study investigates women's experience with heart attacks, revealing a wide range of symptoms that can indicate the disease. The research aims to improve early detection and prevent cardiac events in women.
Researchers discovered that Tim-3 proteins act as 'checkpoints' for the immune system, controlling activated TH1 T-cell responses. This regulation helps prevent autoimmune diseases and organ rejection in transplant patients.
Researchers from MGH and Paradigm Therapeutics have identified the GPR54 gene as a key trigger of the hormonal cascade required for mammalian reproduction. The discovery could lead to new treatments for infertility and abnormal puberty, among other applications.
Researchers at UCSF have identified nearly all proteins in yeast, shedding light on their activity, location, and quantity. The study provides the most comprehensive picture yet of protein activity in higher organisms, offering new tools for understanding gene regulation and disease relationships.
Stanford Medicine has been awarded a significant grant from the National Human Genome Research Institute. The funding will support research teams in analyzing small portions of the human genome using various techniques.
A study by Massachusetts General Hospital researchers found that blood vessel development is intricately linked with fat tissue formation. This interaction can be controlled to develop new treatments for cancer and obesity, as well as support the growth of new organs.
A 1,500-year-old underground tomb was discovered by Field Museum archaeologists beneath a palace-like residence in El Palmillo, Oaxaca. The tomb, remarkably well-preserved due to its subfloor location, contained three human remains with high-status signs, ceramic vessels, and red paint-covered bones.
Research identifies factors increasing risk of psychosocial problems among disabled children, including learning and communication difficulties, family stress, and mothers' mental health. The study analyzed data from over 3,300 children aged 6-17 with disabilities, finding that 11% experienced psychosocial issues.
Failure to meet HIV prevention goals may result in significant financial losses. The CDC's national goal of reducing new infections by 50% might not be met by 2005, leading to an estimated $18 billion in incurred net medical costs between now and 2010.
The study found that many HIV-infected gay and bisexual men tailor their sexual activity to reduce the risk of HIV transmission to casual partners they do not disclose to. Barriers to disclosure include stigma and fears of rejection, suggesting that public health efforts must address these concerns.
The National Multiple Sclerosis Society has awarded $2.48 million to advance research on multiple sclerosis through five collaborative centers. These centers are focused on genetic underpinnings of MS, tissue repair and diagnostic technology, including the use of haplotype mapping and diffusion tensor MR imaging.
Research at University of Pennsylvania School of Medicine found that sleeping six hours or fewer per night leads to significant cognitive performance deficits. Even if individuals don't feel overtly sleepy, chronic sleep restriction can impair neurobiological functioning and increase the risk of accidents.
A study found that minority breast cancer patients who used the internet for medical information experienced greater social support, which was associated with better mental and physical health outcomes. The research suggests that internet use may help prolong survival among these patients.
A recent study analyzed data from the Veterans Affairs HIV patient population between 1993 and 2001 and found a sharp decline in overall death rates among patients. Despite concerns about vascular disease as a side effect of HAART, the study suggests that these drugs may not increase the risk of this condition.
A comprehensive analysis found that Medicare enrollees in higher-spending regions don't have better access to or quality of care, nor do they have better survival rates. In fact, those in higher-spending regions were less likely to receive preventive services.
A new study suggests that middle-aged mice burn fewer calories during exercise, contributing to weight gain. The researchers identified the serotonin 5-HT(2c) receptor as a potential target for therapy.
The article highlights the critical state of primary care in the United States, citing organizational and financial pressures that threaten its viability. The UCSF-led report proposes seven principles for reconstructing primary care, focusing on patient-centered care, adequate reimbursement, and improved education.
Stanford researchers have identified a potential cause of prion disease, linking it to a mutation in a ubiquitin ligase that flags proteins for destruction. The study suggests that the buildup of cellular trash may contribute to the development of spongy degeneration, leading to neuronal death.
A recent study published in Archives of Internal Medicine found that individuals with depressive symptoms are more likely to experience unemployment or loss of income. The research suggests a significant economic impact of depression on employment and income, highlighting the need for increased awareness and treatment.
Researchers found that mercury in fish counteracts the benefits of omega-3 fatty acids, increasing the risk of heart attack. Consuming low-mercury fish like salmon can help reduce cardiovascular risk.
The Emory Center for AIDS Research (CFAR) has received a five-year grant from the National Institutes of Health to further HIV/AIDS research and prevention efforts. With $33.5 million in NIH funding, the CFAR will build on recent advances in immunology, vaccines, and drug development.
A UCSF study of 239 men who have sex with men found no cases of HIV transmission through receptive oral sex. The study contradicts previous case reports and confirms the probability of zero transmission for this activity.
The study found that median survival times for Alzheimer's patients vary significantly depending on the age at diagnosis, ranging from nearly 9 years for those diagnosed at 65 to approximately 3 years for those diagnosed at 90. Additionally, researchers reported an average time of 2.8 years between symptom onset and diagnosis.
Research reported in this supplement describes how marijuana affects nearly every organ system, including cognitive function, heart rate, and respiratory health. The findings add to evidence that marijuana use is linked to various health hazards.
Researchers have found that neural stem cell transplants in mice improve specific components of motor function, but not cognitive abilities. The study suggests that neural stem cells could be a promising therapy for humans with traumatic brain injuries.
A clinical trial found that consuming almonds daily significantly reduces LDL cholesterol levels in hyperlipidemic subjects. The study also showed that eating more almonds increased the reduction of 'bad' cholesterol even further, without resulting in weight gain.
A new drug has been developed to combat botulism by potently neutralizing the toxin. The antibody cocktail is capable of binding to a different part of the toxin molecule, blocking more of the toxin surface than single antibodies. This approach could be scaled up for mass production and stockpiling to prevent or treat botulism.
A recent study found that the suicide attempt rate is high among urban gay men, with younger generations experiencing earlier attempts. Researchers attribute this trend to increased anti-gay harassment and lack of social support among young LGBTQ+ individuals.
Researchers at Massachusetts General Hospital have identified a common immune system pathway shared by humans and worms, which could lead to therapies for chronic inflammatory diseases and other conditions. The study uses the C. elegans nematode worm as a model organism to investigate innate immunity.
The Harvard Medical School consortium aims to engineer microorganisms to handle hazardous chemical waste and produce energy sources. By studying the unique interactions of their proteins and interrelationships with their environments, scientists will develop cost-effective ways to clean up pollution and advance biological-based energy.
A new study found that 96% of HIV-positive MSM with STIs had received healthcare in the previous six months, highlighting the need for regular screening and effective risk reduction messages. The study also revealed high rates of co-infections with HSV-2 and syphilis among HIV-infected men.
A community-based intervention implemented in Albuquerque from 1997-98 found that young gay men reported a 12% decrease in unprotected anal intercourse, reversing baseline increases. The study suggests that empowering communities to establish healthy environments with peer support can effectively reduce HIV risk behavior.
Researchers identify Beta-gamma dimer as key molecule in the brain's response to alcohol, which amplifies dopamine release and contributes to cravings. Blocking this molecule may prevent excessive drinking and provide a novel target for medications.
A study of 2,005 well-educated women found that one in 10 reported histories of domestic violence, resulting in significant increases in neurological and gynecological problems. The study highlights the need for healthcare professionals to screen for abuse regardless of socioeconomic status.
Researchers have developed a photosensitive silicone intraocular lens that can be adjusted after surgery to eliminate refractive errors. The lens uses low-power light to make precise power adjustments, offering a potential alternative to LASIK surgery for severe myopia and farsightedness.
A new implantable device has been designed to deliver anti-psychotic medication for up to a year, potentially relieving patients of psychosis and social instability. The device, made of biodegradable polymers, is surgically implanted under the skin and releases medication into the bloodstream at a specific rate.
A recent study found that ulcer rates were similarly low in patients with diabetes and prior foot ulcers, regardless of the type of shoes they wore. The researchers suggest that careful attention by healthcare professionals may be more effective in preventing ulcers than therapeutic footwear.
A small percentage of homeless individuals in San Francisco account for the majority of emergency department visits. These high users often have substance abuse and mental health problems, and are more likely to be younger, female, and Medicaid-insured.
A recent study found that loosening managed care restrictions can lead to better patient relationships with primary care physicians. Patients in managed care programs were more likely to have continuity with a specific clinician, but these relationships were less likely to last more than 12 months.
Researchers found that managed care is associated with improved integration of inpatient and outpatient care, leading to lower hospitalization rates for chronic conditions. The study analyzed California trends and found a strong association between patient access ratings and reduced hospital admissions.
A new PET tracer, 11C-acetate, has been found to detect prostate cancer earlier and more accurately than 18F-FDG PET. This breakthrough may enable the detection of cancers that are currently undetectable by conventional methods.