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Tag: "age" at biology news

Holiday gluttony can spell disaster for undiagnosed diabetics

...oke, kidney disease and amputations." If you are age 40 or older, obese, lack physical activity or have a family history of diabetes, Dr. Chandalia recommends making time during the holidays to visit a doctor for a diabetes test. Symptoms include excessive thirst or hunger, dramatic weight loss, fatigu...

Researchers barcode DNA of Venice museum's vast fungi collection

...ion. Garbelotto noted that the relatively young age of the samples has been critical to obtaining good quality tissue for DNA analysis. The samples come from throughout Europe, with a significant number representing species found elsewhere in the world. Rather than sequencing the entire genome of e...

Stem cell activity deciphered in the aging brain

... neurons in rats slows down dramatically by middle age -- the equivalent of 50 years in humans. But scientists did not know what causes this decline. The common assumption had been that the brain drain was due to a decreasing supply of neural stem cells in the aging hippocampus, said lead study inves...

Brains can recover from alcoholic damage but patients should stop drinking as soon as possible

...lthy volunteers (six men, four women), matched for age and gender, were recruited as controls for the study. The data were analysed and evaluated using FSL, a sophisticated software package developed at the Oxford FMRIB Centre, and LCModel (a computer program that analyses spectroscopy data) to give esti...

How brain injury leads to seizures, memory problems

...sponsible for the majority of TBIs in people under age 75. According to the National Institutes of Health, over 5 million Americans currently have permanent disabilities resulting from TBIs. The study, which was done in animals, appears in the journal Neurobiology of Disease, published online on Oct. ...

Cigarette smoking impedes tendon-to-bone healing

...he tendons. The injuries are more common as people age and more common in the dominant arm. The true inci... of the tear, chronic nature of the injury and the age of the patient, among other factors. "Especially during the first six weeks after surgery, tissue...

More kidney cancer is detected and treated early, yet death rate rises

...data from 34,503 kidney cancer patients, including age at diagnosis, race, gender and information about the tumor. During the years 1983-2002, researchers found, the overall incidence of kidney cancer rose from 7.1 to 10.8 cases per 100,000 people in the United States, an increase of 52 percent. The larg...

Bacteria that use radiated water as food

...on had occurred. The researchers also examined the age of the fracture water and its chemical composition...bacteria from the division Firmicutes. The ancient age of the fracture water and comparative DNA analysis of the bacterial genes suggests subsurface Firmic...

Pilot study successful in taming allergic reactions to food

...food allergy. Most children outgrow egg allergy by age 5, but some people remain allergic for a lifetime.... affects approximately 1 percent of children under age 5, and its incidence has been on the rise over the past 15 years, according to Burks. Studies have s...

76 percent of workers older than 60 years of age are overweight or obese

76% of workers older than 60 years of age are overweight or obese. However, less than one third of those 40 years of age and younger suffer these health issues. This is one of the conclusions shown in the research of Albe...

Very low birth weight linked to reduced quality of life in pre-school children

...assessment. These include current health problems, age at delivery, length of stay in the neonatal intensive care unit and the educational level of the primary caregiver." Children ranging from 36 to 53 months were included in the study, supported by Taiwan's National Science Council. 57 per cent...

Temperament linked to onset of cancer and early death in female rats

...icts the time at which these tumors appear and the age at which the females will die," said lead author S... The rats were tested at 20 days and 11 months of age in a cage to see how willing they were to explore a new environment, which contained non-threatening...

Commercial fishing causes dangerous fluctuations in fish populations

...kely to be caused by the effect fishing has on the age structure of a population. Heavily-fished populations are unlikely to contain any fish older than a few years old, and as such are wholly reliant on the successful growth of larvae into baby fish (recruits) to maintain population numbers year on year...

Wheat gene may boost foods' nutrient content

...iron, and more than 160 million children under the age of five lack an adequate protein supply. The cloned gene, designated GPC-B1 for its effect on Grain Protein Content, accelerates grain maturity and increases grain protein and micronutrient content by 10 to 15 percent in the wheat varieties studied...

New data from NIH lab confirms protocol to reverse type 1 diabetes in mice

...of spleen cell contribution is influenced by mouse age at the start of treatment. Spleen cells appear to contribute to islet recovery more in mice who are older and with more advanced diabetes compared with younger mice with less advanced diabetes, in which regeneration of remaining islets may be the do...

Buildup of damaged DNA in cells drives aging

...re inherited disease in which affected individuals age rapidly and die prematurely. "These progeroid mic...rs. The first is that our lifespan and how well we age is determined by the genes inherited from our parents. The second is that lifespan and fitness in ol...

Age-related changes in DNA repair illuminate the connection between age and genetic damage

... It is also known that DNA damage accumulates with age in cells of a variety of tissue types. Breaks in the DNA chain have a variety of causes and occur frequently in the course of natural cellular processes. Repairing such breaks is an essential but hazardous process, often leaving missing or added b...

Study offers window into human behavior, brain disease

...'s disease in patients who develop dementia before age 65. Because the cells arose only recently in evolutionary history -- in a common ancestor of great apes and humans-- and are particularly abundant in humans, and the finding supports the concept that evolution has rendered the human brain vulnerabl...

For super-obese patients, duodenal switch beats gastric bypass

...0 percent of both groups were female. The average age was 40, but that ranged from 18 to 68. About 92 percent had the surgery performed laparoscopically, through small abdominal incisions. The duodenal-switch patients were slightly heavier. Their average weight before surgery was 368 pounds, compare...

Honey bee genome holds clues to social behavior

...ragers. The job transition, whether triggered by age or social cues, involves changes in thousands of genes in the honey bee brain; some genes turn on, while others turn off. Genes are switched on and off by short strings of DNA that lie close to the gene. The strings serve as binding sites for parti...

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