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Tag: "older" at biology news

Research team identifies new Alzheimer's gene

... form of disabling memory and thinking problems in older people. The progressive neurological disorder affl...or the harmful effects of APOE4 and other genes in older people and that the GAB2 risk gene lacks this protective effect. The study, funded by Kronos Sci...

Breakthrough developments in rheumatoid arthritis reported

...entify players that have fallen under the radar of older methods. The group has discovered another signaling molecule that seems to increase a person’s risk for rheumatoid arthritis by 30 percent. (The paper reporting the gene is in press.) In collaborations with other scientists worldwide, Dr. Greger...

Rising skin cancer rates are more likely to affect wealthy people, says 12-year review

...the early 1990s and are more likely to affect men, older people and those living in more affluent areas, according to a study just published in the June issue of British Journal of Dermatology. Researchers who looked at official cancer statistics for nearly 23,000 patients over a 12-year period, reported ...

U-M researchers discover gene switched off in cancer can be turned on

... treated for long periods of time, which is unlike older and more traditional chemotherapy agents. Even if these new targeted therapies don’t cure the cancer, we can at least have long-term survival,” he adds. ...

Undergraduate research shows leaderless honeybee organizing

...ed by the cumulative group actions of the colony’s older workers, not by the queen’s individual decision. What Pierce and colleagues found was that older workers gave signals to the queen and to the rest of the colony that it was time to swarm and leave ...

Study investigates 'divorce' among Galapagos seabirds

...eeding probably improves as the pairs of birds get older and are together longer, as has been found in other birds. But, often the female seeks a divorce after a few breeding seasons. Since males significantly outnumber females in the colony studied, there are plenty of bachelors available if the fema...

Study finds mix of disease processes at work in brains of most people with dementia

Few older people die with brains untouched by a pathological process, however, an individual’s likelihood of having clinical signs of dementia increases with the number of different disease processes present in the brain, according to a new study. The research...

Risk of stroke doubles if diagnosed with Type 2 diabetes

... greater in younger persons with diabetes than for older persons. As it has been more common to study stroke prevalence within 10 years after diagnosis, this is the first study to specifically examine stroke-related outcomes immediately after the diagnosis of and initiation of treatment for Type 2 dia...

Experimental gene therapy 'abolishes' arthritis pain and lessens joint damage

...uman trials next year. Nearly everyone aged 65 or older suffers from the pain, swelling and permanent joint damage of osteoarthritis. The most common form of arthritis, it develops over time following initial joint injuries or just as a result of aging. In the current study, researchers found that one inj...

Focused ultrasound relieves fibroid symptoms in women

...to hysterectomy. "This treatment is ideal for older women who have completed their families and have a single or limited number of fibroids," said co-author Clare M. Tempany, M.D., professor of radiology at Harvard Medical School and director of Clinical Focused Ultrasound at Brigham and Women’s Hospi...

Machine preservation may promote more organ sharing

Preserving the kidneys of deceased older donors on a pump ?as opposed to the conventional m... kidney transplant patients receiving kidneys from older deceased donors based on whether organs were preserved by pump or cold storage. "The critical org...

Newborn neurons like to hang with the 'in' crowd

...urons may depend on the ability to compete out the older existing neurons," says Gage. Earlier studies had shown that if young neurons fail to receive signals from other brain cells they wither and die. By connecting to functional synapses, the newborn neurons ensure that they are not reaching out to deadb...

100 percent of pregnant women have at least one kind of pesticide in their placenta

...ed with a higher presence of pesticides we find an older age, higher body mass index, less weight gained during pregnancy, lower educational level, higher workplace exposure, first-time motherhood and lower weight in babies. "Serious effects on the baby" According to María José López, "we do not re...

Chemical maps hint at drug's effects on schizophrenia

...atric conditions, have fewer side effects than the older antipsychotics, but several still induce weight gain and diabetes. Schizophrenic patients were found to have lower levels of the lipids used to make membranes involved in storing and communicating information in the brain. These lipid changes were...

Sleep quantity affects morning testosterone levels in older men

...sured differences in the amount of sleep a healthy older man gets can affect his level of testosterone in t...he results of the study raise the possibility that older men who obtain less actual sleep during the night have lower blood testosterone levels in the mornin...

UCLA study uncovers clues for why Graves' disease attacks the eyes

...pects that this mechanism prolongs the survival of older T-cells, causing a cascade of autoimmune problems that spur the body to attack its own tissue. "We think that the extra receptors allow the new antibody and IGF-1 to disrupt the programming of the T-cells," said principal investigator Dr. Terry Sm...

Researchers wake up viruses inside tumors to image and then destroy cancers

...Velcade is only one of an array of new, as well as older agents, that can induce lytic infection, and a particular agent could be tailored for use in a specific patient through imaging," he says. ...

Rapid response was crucial to containing the 1918 flu pandemic

...me these mutations can alter the virus enough that older vaccines are no longer effective. With current technologies, it would take months to develop a new vaccine after the first cases of pandemic influenza appear. Nonpharmaceutical interventions may limit the spread of the virus by imposing restrictio...

Gut research yields new anti-cancer approach

... While PPARgamma inhibitors reduce tubulin levels, older anti-microtubule drug classes; Vinca alkaloids, taxanes (including Taxol) and epithiolones; interfere with microtubule dynamics. To play their role in tumor growth, microtubules must remain flexible. Taxol, for example, "freezes" tubulin subunits, ma...

Pitt study notes decline in male births in the US and Japan

...that some combination of these factors, along with older age of parents, may account for decreasing male births.? Dr. Davis explained that environmental factors, such as prenatal exposure to endocrine- disrupting environmental pollutants may impact the SRY gene ?a gene on the Y chromosome that determin...

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