Tag: "age" at biology news

Common Mutations Linked To Increased Risk Of Breast Cancer

...ere closely matched for age,menopausal status, and age of first period and first pregnancy. Slightly moreof the control subjects used estrogen replacement therapy, and each group hadsimilar levels of contraceptive use. "We had a pretty tight fit between the control and the experimentalgroup," D...

Dietary Determinants Of Iron Stores In A Free-Living Elderly Population: The Framingham Heart Study

...antly lower mean concentrations than men. However, age was not related to serum ferritin in our elderly population. Our results suggest that in typical Western-style diets, a small number of dietary factors probably modulate the bioavailability of dietary iron and influence the accumulation of iron store...

Rockefeller University Researchers Hunt For Type 2 Diabetes Susceptibility Genes

...s of blood glucose?and is characterizedby an early age of onset.. Known as maturity onset-diabetes of the...ODY),this form of diabetes usually develops before age 25. Stoffel's study focuses onboth early- and late-onset type 2 diabetes. Diabetes, one of the world...

Adults Need To Increase Intake Of Folate; Some Women Should Take More

...ly occurring form of B12found in food. People over age 50 should meet most of their recommended intakewith synthetic B12 from fortified foods or vitamin supplements. New Dietary Standards The committee's report on Dietary Reference Intakes expands on the RecommendedDietary Allowances set periodically b...

New Recommended Intake Of Folate, Other B Vitamins, And Choline To Be Announced At April 7 Briefing

...n thedaily requirements of individuals in specific age and gender groups, andspecifies intakes above which adverse health effects may occur. The report isthe second in a series that will replace the Recommended Dietary Allowances setby the National Academy of Sciences since 1941. Dietary Reference Int...

Study Finds Russian Women, Children Not Getting Enough Iron In Their Diets

...resentative sample of 3,188 women of reproductive age in more than 6,000households about diet and other lifestyle characteristics. 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 i...

Possible Trigger For Heart Failure Identified In Lab Animal Studies

...most frequent cause of hospitalizations for people age 65 or older,according to the American Heart Association. From 1979 to 1995, deaths fromheart failure increased 115.7 percent. In the study, researchers developed two lines of transgenic mice whichexpressed TNF in the heart. The two lines, w...

Smokings Effects On Pregnancy Not Mitigated By Prenatal Vitamins, UB Study Finds

...s or children who were small for their gestational age among women who smoked during pregnancy and also took vitamins. "These findings show that taking vitamins doesn't substitute for giving up smoking during pregnancy," Buck stated. The analysis also revealed certain patterns of smoking and v...

Fruits And Vegetables Protect Lungs

...the United States, affecting 5 million people over age 55 and contributing to about 2 million hospitalizations a year. Cigarette smoking is the principal risk factor for COPD, say the researchers, yet only 15 percent of cigarette smokers develop COPD. To try to figure out why, Hu and Cassano examined th...

Infant Dependency Drives Menopause, NSF-Supported Researcher Reports

... a species needs to raise last-born infants to the age ofindependence, he says. Packer's research is fun...ge of 10, then reproductive decline could begin at age 40. Packer's dataillustrates this concept in baboons and lions. Female baboons don't live pastage ...

Jefferson Scientists Link Some Cases Of Scleroderma To Damage From Lingering Fetal Cells

...leroderma] is more common in women and why at that age after many women have had children. We’ve known about cells from the baby going to the mother, and vice versa, but we didn’t know cells could survive in the circulation for decades," he says. The next step, Dr. Jimenez say...

New Clue To apoE Function

...the worst luck ofthe draw. As well as lowering the age at which Alzheimer's disease develops,this permutation appears to speed the onset of Parkinson's disease and bodes apoor neurological outcome after cardiac bypass or cerebral hemorrhage. "Our thinking is that apoE3 is much more effective at p...

Bears Cubed: Virginia Tech Studies Three Bears, And Three Bears, And Three More Bears

...acking. Annual growthrings on teeth can reveal the age of adult bears. A bear first breeds when sheis two and half to three and a half years old. Some of the bears in Virginia that are being studied have been fitted with radiocollars or a device that is inserted under their skin in the back. If the beard...

Cystic Fibrosis Gene Protects Against Typhoid Fever

... the 1950s, most children with the disease died by age 1 or 2. Today, with better methods for managing the disease, the average survival ofthese individuals is about 30 years. "In most cases of inherited disease with high rates of childhood mortality, thedefective gene does not remain in the gene pool," ...

New Insights Into The Enigma Of Lengthening Longevity

...ries than there would have been if mortality after age 80 had stayed at 1960 levels. Death rates increase at a slowing rate after age 80. Mathematical analysis of the data indicates that death rates may level off at aroun...

New Fossil Discoveries Clinch Ancient Age Of Human Ancestor

... African fossils could resolve questions over the age and evolution of a species thought to be the most ...ays. "In 1995 we could not firmly establish the age of the youngest geologic layer associated with these fossils because the best dating technique, th...

High-Pressure Chambers Could Prevent Paralysis After Spinal Cord Injury

...,000 to $1.3 million over a lifetime, depending on age and the degree ofinjury. James cautioned that hyperbaric oxygen therapy, as the high-pressureprocedure is called, is useful only in cases where the spinal cord is bruised,but not in cases where it is physically severed. The National S...

Remarkable Skull Of Predatory Dinosaur Unearthed On Madagascar

...e among the most importantfossil localities of any age in the world." Theropod dinosaurs have been known from Madagascar for over a century,but almost solely on the basis of isolated teeth -- hundreds of them, each withtiny serrations indicating the predatory habits of the animal. "Our primaryg...

Clinical Trials Show That Bone Marrow Transplant And Vitamin A Derivative Both Improve Survival From Neuroblastoma

... in children, it rarely strikesadults. The average age of diagnosis is two-and-a-half years, and one in 6...00children are diagnosed with neuroblastoma by the age of five. The patients whoreceived treatment as part of the Children's Cancer Group Study were at hig...

Cell Pathways Reports Extension Study Results Showing Ability Of FGN-1 To Prevent Formation Of Precancerous Colon Polyps

...e than 30% of people in the United States over the age of50, putting these individuals at significantly increased risk of colon cancer. Extension Study Design All patients completing at least six-months in an open-label Phase I/II trial ofFGN-1 at oral doses ranging from 400 to 800 mg/day participated...

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