Tag: "aged" at biology news
Animal Studies Indicate Aging Brain Responsive To Estrogen
...alled "dendriticspines," on these neurons than did aged
female rats with no estrogenreplacement or those e...one ofour next steps is to determine if neurons in aged
males are responsive toestrogens as well. They may or may not be since, paradoxically, males haveest...
Gene For Last Major Form Of Batten Disease Discovered
... in some ways to the lipofuscin thataccumulates in aged
cells, says Dr. Pullarkat. This buildup of lipofuscinsuggests that, in both aging and Batten disease, the cellular disposal systemgets clogged and slows down. The NINDS and the NIDDK are part of the National Institutes of Health located inBethesda, ...
Plant-Based Therapies Examined For Colon Cancer Prevention
...tudy, the research team will recruit men and women aged
18years and older who have a history of colon polyps. Participants may not smokeand should be healthy. People interested in enrolling as participants shouldcall Dawn Stoddard, M.S., F.N.P., at 1-212-327-7458 or write firstname.lastname@example.org...
Long-Term Vitamin C Use Cuts Cataract Risk In Older Women
... The study participants were 247 Boston-area women aged
56 to 71 years who were selected fromthe Nurses Health Study (NHS). The NHS began in 1976 when 121,700 female nurses, ages 30 to 55 and residing in 11 states,completed a mailed questionnaire on known and suspected risk factors for cancer and heartdis...
Colon Cancer Linked To Genes, Not Lifestyle
... "The simple lives of captive-born, aged
rhesus monkeys result in minima...opsy data from 175 monkeys, all aged
20 to 37 years, roughly the equivalent of people in their 50s to 80s. The animals...
MIT Biologists Identify Aging Mechanism
...g in yeast cells. Again, the biologists noted how aged
SGS1 yeast cells displayed fragmentation ofthe nucleolus. "Our findings indicate a particular cellular structure, the nucleolus, may bethe Achilles' heel as cells get old. We think this fragmentation of thenucleolus is a cause of aging," Professor G...
Diet, Antioxidant Status, And Smoking Habits In French Men
...ults. Food and nutrient intakes of 459 healthy men aged
23--57 y were estimated by thediet history method and analyzed by smoking status. Plasma alpha-tocopherol, ascorbic acid, andcarotenoids were measured as antioxidants and malondialdehyde, protein Schiff bases, andautoantibodies against malondialdehyd...
Lifestyle Determinants Of Plasma Homocysteine
...subjectswere in two age groups: 9165 subjects were aged
40--42 y and 2351 subjectswere aged
65--67 y. The remaining 425 subjects were of intermediate ages.In multivariate analysis, sex, age, f...
Good Nutrition In Childhood Can Prevent Some Cancers In Later Life
...rs took the 1937-9 Boyd Orr study of 3834 children aged
16 years and under, which examined their dietary intake and traced these individuals through to adulthood. Overall, five per cent of the population studied, died of cancer. However ,they found that children with a lower dietary intake were less like...
Genetics May Explain Much Age-Related Hearing Loss
... were young (2 months), middle-aged (7 months) and aged
(17 months). None were subjected to any interventions, such as noise exposure, that couldcause cell damage, yet researchers found dramatic differences among the groups "The control-group mice had some sensory-cell loss just from being old,bu...
Biologists Map First Gene For Age-Related Hearing Loss In Mice
... Laboratory and sent here. I rearedthe animals and aged
them to two years of age." Tissue samples demonstrated that the Ahl gene was onChromosome 10, but the research team then did an additional threeyears of work to confirm their results. This part of the researchinvolved back-crossing the wildtype or no...
American Heart Association Comment: Sodium Reduction And Weight Loss In The
Treatment Of Hypertension In Older Persons
...on of blood pressure inhypertensive men and women, aged
60-80 years. Further, in the obese, thecombined intervention of sodium reduction plus weight loss was more effectivethan either alone. About 50,000,000 Americans age 6 and older have high blood pressure. Surveysconducted in the early 1990s showed a...
New Study Of BRCA1 Shows No Need For Widespread Screening Of American Women
...n North Carolina. The patients were women aged
20 to 74, diagnosed as having a firstinvasive breast cancer between 1993 and 1996. They were asked to participateregardless of their age when diagnosed, or the incidence of breast cancer intheir families. "The question was, just how common ar...
Link Made Between Human Growth Hormone, Bone Quality In Mice
...c mice had higher levels of bone resorptionas they aged
than did normal mice. Goldstein said more research will be necessary to pin down exactly how growthhormone upsets the natural balance between structure and function in developingmouse bone. "It may be that inferior bone quality is a direct result of ...
Study Finds Russian Women, Children Not Getting Enough Iron In Their Diets
...teristics. Among them, the womenhad 1,764 children aged
13 or younger. From answers about how much meat and non-meat foods such as fruit wereconsumed, researchers estimated iron consumption. They found total dietary ironamong the women was only two-thirds of the recommended level in Russia. ...
Evaluation Of The Two Types Of Cardiac Pacemakers Indicates Only Modest Differences In Value
... than we had expected." In the study, 407 patients aged
65 and older and 60 percent male, were assessedfor health-related quality of life, as measured by social function, physicalability, emotional mental health and energy, cardiac functional status andlong-term cardiac function. The researchers did see b...
Florida Or Bust? Older Lab Rats Seek Heat To Fight Infection, UD Researchers Report
...ng component ofbacteria, into a half-dozen animals aged
3-4 months, as well as an equal numberof older spe...ces in response to LPS and psychological stress in aged
rats," American Journal of Physiology , Vol. 272, No. 41, R1252 - R1257, 1997.) Satinoff suspected, ...
Largest Generation Of Adolescents Faces Reproductive Health Risks
...ng world as a whole, the population of adolescents aged
10-19 wasestimated at 914 million in 1995, about one-fifth of the population of all ages,making it the largest generation in history. As these adolescents enter theirchildbearing years, the decisions they make about sexuality and childbearingwill hav...
Molecular Marker May Identify Bladder Cancer Patients Most Likely To Recur
...eatment. Stein and Cote studied 242 men and women, aged
49 to 83, who had surgery toremove the bladder after being diagnosed with locally confined cancer.Participants were followed for an average of 8.5 years. Researchers analyzedbladder tumor tissue using antibodies specific to the p21 protein and alsote...
Scientists Find Gene For Severe Form Of Epilepsy
...ntly the same composition are also found in normal aged
brains with noobvious consequence. "This discovery opens an entire new area of research into not only epilepsy butalso normal brain function," says Dr. Berge Minassian, a neurologist at HSC andkey scientist in the study. "While signalling molecules s...
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