A UCSF-led study found no evidence of trans-differentiation when bone marrow-derived cells fused with damaged tissue in mice, casting doubt on their potential as a treatment for brain and heart diseases. The researchers suggest that cell fusion might be a physiological mechanism for repairing damaged cells, but more research is needed.
The new Bay Area Breast Cancer and the Environment Research Center aims to study the impact of prenatal-to-adult environmental exposures on breast cancer risk. The center will focus on two counties: Marin County, with high reported rates of breast cancer, and Alameda County.
Researchers at UCSF successfully engineered a signaling protein to respond to novel inputs, mimicking the behavior of natural circuits. This breakthrough enables the creation of modular electronic components in cells, allowing for diverse circuits and behavior.
A new study found that combining osteoporosis medications, parathyroid hormone and bisphosphonates, does not provide additional benefits to patients. The trial of 238 postmenopausal women showed no significant improvement in bone density or anabolic effects when both drugs were used together.
Researchers have made significant progress in isolating skin stem cells, with the discovery that these cells can be found in the basal epidermis layer. This breakthrough has the potential to treat wounds, including burns, by transplanting stem cells directly onto the damaged area.
A randomized clinical trial will test whether daily tenofovir prevents HIV infection in 800 high-risk, uninfected Cambodian women. The study aims to evaluate the effectiveness of the antiviral drug for preventing HIV-1 transmission in people.
Researchers found that pancreatic cancer growth can be arrested by blocking the Hedgehog signaling pathway, which is active in human embryonic development. This pathway has been linked to several other types of cancer and may offer a new treatment avenue for pancreatic cancer.
Researchers discovered that glucocorticoid steroid hormone promotes pleasure-seeking behaviors, including eating high-energy foods, in response to chronic stress. This finding suggests that comfort food could be a natural way to curb chronic stress and its negative effects on the body.
A new study links workplace exposure to chronic obstructive pulmonary disease (COPD), affecting three to five million people in the US. The research suggests that controlling hazardous exposures can play a significant role in reducing COPD cases.
Research at UCSF found that patients taking 80% or more of their antiretroviral medications developed twice as many resistance mutations as those taking less than 40%. Despite this, excellent adherence remains the best way to prevent HIV/AIDS and prolong life with resistant virus.
Researchers have mapped the location of a dominant signaling molecule on proteins, which causes cancer and diabetes when it goes awry. The discovery allows scientists to block aberrant binding and treat diseases by designing drugs that target specific phosphate bonding patterns.
A randomized, controlled study involving medical marijuana found no harmful changes in HIV virus levels or immune system function in patients with HIV. Participants experienced weight gain, but no change in their undetectable status.
A recent study reveals that an unusually high percentage of genes are expressed during the critical stage of the malaria parasite's life cycle, when it invades red blood cells. The analysis shows a unique pattern of gene expression, with most genes expressed only once in a specific order, suggesting a molecular 'just in time' factory.
Studies found that patients with vascular dementia had less NAA in regions involved in short-term memory and language, while those with Alzheimer's had substantial NAA deficits. Accuracy improved when combining MRI and MR spectroscopy measures, suggesting potential for recovery through drug treatment.
A large study of nearly 7,000 American adults found that higher vitamin C levels were associated with a lower prevalence of H. pylori infection. The researchers suggest that adequate vitamin C intake may reduce the risk of peptic ulcers and stomach cancer, although more research is needed to confirm this association.
A new computer-based system, ACASI, was tested with Zimbabwean women, yielding more accurate data on key HIV risks. The tool helped overcome cultural issues and social desirability bias in face-to-face interviews.
A study of 181 sexually active Zimbabwean women found that diaphragms can be used without a partner's knowledge to prevent HIV transmission. The researchers suggest that this method could provide an additional tool for HIV prevention, particularly for women who do not have access to condoms or other forms of protection.
A recent study reveals that physician assistants and primary care specialists like family physicians, nurse practitioners, and midwives are more likely to work in underserved areas. The researchers found a strong correlation between these professions and the provision of healthcare services in rural and urban shortage areas.
A UCSF-led team has identified a potential cancer susceptibility gene, the Ile31 variation of the Aurora2 gene, which disrupts cell regulatory controls and increases cancer risk. The study suggests that low penetrance genes can confer significant susceptibility to cancer.
Researchers found that stimulating a small region of the cerebral cortex, known as the rostral agranular insular cortex (RAIC), can diminish pain in patients with chronic pain conditions. Increasing GABA levels in this area produced analgesia up to 10 days, suggesting a novel target for therapy.
A study found that Alzheimer's disease alters a protein called calbindin in brain cells, leading to cognitive deficits. Calbindin levels in granule cells were strongly correlated with cognitive decline in genetically engineered mice and human patients.
A study by Mary A. Whooley and colleagues found that depressive symptoms are a better predictor of poor quality of life in patients with coronary disease than previously thought. The researchers measured depressive symptoms using the Patient Health Questionnaire (PHQ) and found that these patients were more likely to report lower healt...
Researchers discovered that a single life-extending mutation affects multiple genes, including those controlling cellular stress response and metabolic processes. The study reveals the intricate connections between genetic pathways and their impact on lifespan.
Researchers found that 30% of diabetic patients with kidney disease do not exhibit common symptoms like protein in urine and eye disease. The current approach of screening for these symptoms alone is insufficient, and a blood test measuring kidney function directly is recommended.
Using a modified version of a naturally occurring human protein, researchers were able to significantly reduce the spread of disease and decrease tumor growth without evidence of toxicity. The modified protein was able to interfere with cancer cells' ability to stick to one another and other healthy cells.
Researchers have developed genetically modified fat that protects mice from obesity and insulin resistance by increasing adiponectin production. The study suggests that knocking out the Dgat1 gene perturbs the metabolic function of fat tissue, leading to increased energy expenditure and improved insulin sensitivity.
Researchers challenge assumption that poverty is a risk factor for non-adherence to HIV medication regimens, citing high treatment adherence rates in South African studies. The editorial argues that delivery systems may compromise confidentiality and risk stigmatization if not based on clear evidence.
Philip Morris advertised in gay media to 'own the market,' but quickly distanced itself from the community. The company ultimately settled a boycott by agreeing to financially support HIV/AIDS groups.
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 VA health system saw significant improvement in quality-of-care indicators after implementing reforms, including electronic medical records and accountability measures. The system outperformed Medicare on many measures, making it an excellent model for healthcare organizations to adopt.
A team of scientists discovered that small heat-shock proteins play a key role in delaying both aging and age-related diseases such as Alzheimer's, Huntington's, and Parkinson's. The proteins inhibit protein aggregation, suggesting a molecular link between the two conditions.
Research finds that spinal manipulative therapy may exacerbate pre-existing vertebral artery dissections, increasing the risk of stroke. Patients under age 60 who received chiropractic neck treatments were six times more likely to experience a stroke than those who didn't.
Researchers found lower concentrations of amino acid N-acetylaspartate in the right hippocampus of males with bipolar disorder. The study suggests a progressive nature of the disease, with decreasing levels of NAA seen over time.
Researchers at UCSF suggest a new cutoff point for assessing risk based on weight for gestational age, increasing the prediction of adverse neonatal outcomes. The study found that fetuses in the lowest 5th percentile are at dramatically increased risk for low birth weight and preterm birth.
A study of 917 patients found that functional decline was steady and not marked by a sharp point in time, challenging the Medicare hospice model. The researchers suggest that alternative care systems are needed to provide adequate support for frail elderly individuals with progressive decline.
Researchers found that elderly patients often experience a loss of function after hospitalization, with over 50% of those 85 and older experiencing functional decline. This decline can lead to institutionalization, increased burden on caregivers, and higher healthcare costs.
A six-month public smoking ban in Helena, Montana, significantly reduced acute myocardial infarction hospital admissions by nearly 60%. The study found that smoke-free environments not only protect against long-term secondhand smoke effects but also rapidly prevent heart attacks.
Antibiotic prescriptions decreased for common cold and respiratory infections, but broad-spectrum use increased, posing a threat to public health. The misuse of broad-spectrum antibiotics contributes to the creation of resistant bacteria strains.
A new study found that levorphanol's ability to reduce pain is comparable to tricyclic antidepressants and gabapentin, commonly used drugs for neuropathic pain treatment. High-dose treatment provided greater pain reduction without tolerance, but also led to more side effects and participant dropout.
Researchers found that a small region of tissue at the front edge of what in humans would be the upper lip controls development of the upper half of the face. Facial tissues remain responsive to their environment for about nine weeks, or through most of the first trimester.
Researchers have identified the matchmaker protein SYG-1, which guides nerve cells to form synapses during embryonic development. This discovery may lead to new treatments for disorders such as chronic epilepsy and chronic pain, where synapse formation goes awry.
A new study found that providing integrated medical and health care services can reverse disparities in health outcomes between African Americans and whites. The research, published in the Journal of the American Geriatric Society, compared health status and survival rates of elderly African American and white participants enrolled in ...
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.
A comparative herbal study found that ephedra is hundreds of times riskier than other commonly used herbs, posing a risk 200 times greater than all other herbal supplements combined. The study's findings prompted calls for more stringent regulation or banning of the substance by the U.S. Food and Drug Administration.
Researchers found that a molecular sticking process stops the embryo's journey along the uterine wall and starts attaching it to the wall, creating a sticky environment. The discovery of L-selectin protein helps to understand human embryo implantation and may prove useful to treat infertility.
Researchers found that using interactive techniques, such as checking patient recall and comprehension, can improve diabetes control without requiring longer visits. This technique is underused by physicians but holds great potential for improving patient outcomes.
A study by UCSF researchers reveals that the human gene BOULE regulates meiosis in sperm development, a key step in creating sperm and eggs. The finding has significant implications for understanding infertility and developing new treatments, including drugs to assist immature sperm cells or block sperm maturation.
A meta-analysis of 29 trials found that cholinesterase inhibitors improved behavioral and functional status in patients with mild to moderate Alzheimer's disease. The study suggests potential benefits for improving quality of life and reducing caregiver burdens, but long-term research is needed to confirm these findings.
Researchers found that hormone therapy (HRT) significantly reduced the risk of developing type 2 diabetes among postmenopausal women with coronary heart disease and impaired fasting glucose. The study, published in Annals of Internal Medicine, suggests HRT may have metabolic benefits that outweigh the risks for certain high-risk groups.