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<p>Aging of individual cells in the body leads to aging of the whole person, according to new evidence from studies of very rare children born with a genetic mutation that wrinkles, ages and kills them before they reach adulthood.</p>
During a decade of receiving mammograms, more than half of cancer-free women will be among those summoned back for more testing because of false-positive results, and about one in 12 will be referred for a biopsy.
<p>African American women have lower breast cancer survival rates than white women and University of California, San Francisco (UCSF) scientists are studying why – as well as how to increase their life spans.</p>
<p>A type of fat known as brown fat combined with a stimulating environment appears to help burn calories, at least in a mouse, and maybe even in humans. The findings further fuel enthusiasm for research aimed at converting white fat to brown fat.</p>
<p>Malaria is an infectious disease caused by a parasite transmitted from person to person by the bite of a mosquito. In the past two centuries, numerous research and public health efforts worldwide have sought to combat this ancient scourge as this timeline shows.</p>
UCSF researchers say their analysis of the age-specific, long-term effects of chemotherapy on women provides new insights that will help patients and clinicians make more informed decisions about future reproductive options, such as egg harvesting.
A UCSF-led pilot study in San Francisco has found the highest levels ever reported among pregnant women worldwide of banned chemicals used in flame retardants, a likely result, they believe, of California’s strict flammability regulations.
Scientists have known for years that when vampire bats tear through an animal’s skin with their razor-sharp teeth, their noses guide them to the best spots – where a precise bite will strike a vein and spill forth nourishing blood. But nobody knew exactly how bats knew where to bite – until now.
Patients diagnosed with traumatic brain injury (TBI) had over twice the risk of developing dementia within seven years after diagnosis compared to those without TBI, in a study of more than 280,000 older veterans conducted by researchers at the San Francisco VA Medical Center and UCSF.
<p>Francis Collins, director of the National Institutes of Health (NIH), describes the scientific goals and functions of the National Center for Advancing Translational Sciences (NCATS), a proposed new entity of the NIH that will strive to reengineer the process of developing drugs, diagnostics, and devices. </p>
<p>UCSF cognitive neuroscientist Adam Gazzaley has used functional brain imaging and EEG studies to discover that older adults fare worse than younger adults at remembering following distractions. He hopes to improve their performance with cognitive training, using a newly developed video game.</p>
Researchers at UCSF and in Michigan, North Carolina and Spain have discovered how genetic mutations cause a number of rare human diseases, which include Meckel syndrome, Joubert syndrome and several other disorders.
<p>Having developed an algorithm that discovered a large quantity of drug-producing bacteria in and on humans, Fischbach has turned his lab’s attention to studying their populations and interactions with each other. This, he posits, can greatly influence a person’s overall health and disease.</p>
<p>By mapping neurons and neuron circuitry during movement, Sabes’ lab hopes to one day to be able to print this information back into the brain. If feasible, such therapy could offer new hope to stroke victims whose brains are unable to recover on their own.</p>
<p>Many researchers are finding that by the time a patient seeks treatment for symptoms of Alzheimer’s disease, it’s often too late for the available drugs to have an effect. Boxer’s lab is studying very precise eye tracking methods to gauge mental fitness and identify cognitive decline decades before the first symptoms appear.</p>
<p>With years of sleep research under her belt, Lee has recently focused on helping parents — especially new and expecting mothers — get enough sleep. From these studies, Lee has found worrisome correlations between sleep deprivation during pregnancy and increased instances of Cesarean operations and length of labor. By educating families about proper sleep hygiene, she hopes to promote healthier home environments for mothers and babies.</p>
<p>Swallowing pills means medication must face the challenge of surviving the harsh environment of the digestive tract. As a result, people must take larger doses than they need. Using micro and nano-fabrication techniques developed by the computer chip industry, Desai’s lab is creating tiny devices that take multiple drugs directly to where they are needed, using less medication, minimizing side effects and making the process safer for the patient. </p>
<p>Each year, scores of soldiers wounded by explosives suffer from debilitating nerve injuries that render their arms and legs useless. Kim’s research, performed at the UCSF-affiliated San Francisco Veterans Affairs hospital, has led to development of artificial nerve grafts to accelerate healing of these injuries.</p>
Stem cell transplantation may hold the promise to treating many diseases before birth such as sickle cell anemia and muscular dystrophy. But first, researchers need to overcome many barriers, including rejection of stem cell transplants by the fetus. MacKenzie’s lab recently discovered that mothers’ T cells are responsible for rejecting the grafts and that this rejection may be avoided by using stem cells from the mother.
<p>For doctors confronting the AIDS epidemic, past ambitions always boiled down to two main goals: prevention, or finding ways to protect people not yet exposed to HIV, through vaccines, safe sex education or other means; and treatment, or discovering effective drugs and providing them to people with HIV/AIDS, helping them live longer.</p>
<p>Doctors and other health care professionals packed into San Francisco General Hospital’s Carr Auditorium for the June 7 medical grand rounds, commemorating the 30th anniversary of the first AIDS report to the US Centers of Disease Control (CDC) and Prevention.</p>
A 10-month study of healthy honey bees by UCSF scientists has identified four new viruses that infect bees, while revealing that each of the viruses or bacteria previously linked to colony collapse is present in healthy hives as well.