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Older in Biological News

Most older long-term cancer survivors have poor health habits

A new study finds that most older long-term cancer survivors who are interested in diet and exercise actually have poor health habits. The study also reveals that those survivors who do exercise and watch their diet have improved physical health and quality of life. Published in the September 1, ...

Two dietary oils, two sets of benefits for older women with diabetes

COLUMBUS, Ohio A study comparing how two common dietary oil supplements affect body composition suggests that both oils, by themselves, can lower body fat in obese postmenopausal women with Type 2 diabetes. The two oils compared were safflower oil, a common cooking oil, and conjugated linoleic...

New, less invasive genetic test greatly improves pregnancy rates in older women with poor prognosis

Amsterdam, The Netherlands: A new test examining chromosomes in human eggs a few hours after fertilisation can identify those that are capable of forming a healthy baby, a researcher told the 25th annual conference of the European Society of Human Reproduction and Embryology today (Monday 29 June)...

After a few drinks, older adults more impaired than they think

GAINESVILLE, Fla. Older, active people who have a drink or two might be more impaired afterward than they think, according to a report today from a University of Florida research group in the Journal of Studies on Alcohol and Drugs . Although people 50 or older in the study metabolized alcoho...

Many middle-aged and older Americans not getting adequate nutrition

March 1, 2009, St. Louis, MO Micronutrients such as calcium, magnesium, potassium and vitamin C play essential roles in maintaining health. As older adults tend to reduce their food intake as they age, there is concern that deficits in these micronutrients lead to medical problems. In a study pub...

Gardening gives older adults benefits like hand strength and self-esteem

Researchers at Kansas State University already have shown that gardening can offer enough moderate physical activity to keep older adults in shape. In research to be published in February in the journal HortScience , the researchers discovered that among the other health benefits of gardening ...

Gardening gives older adults benefits like hand strength and self esteem

Researchers at Kansas State University already have shown that gardening can offer enough moderate physical activity to keep older adults in shape. In research to be published in February in the journal HortScience , the researchers discovered that among the other health benefits of gardening ...

Research finds older women who are more physically fit have better cognitive function

New research published in the international journal Neurobiology of Aging by Marc Poulin, PhD, DPhil, finds that being physically fit helps the brain function at the top of its game. An Alberta Heritage Foundation for Medical Research Senior Scholar, Poulin finds that physical activity benefits ...

RING finger protein 5 may guide treatment for muscle disease in older adults

Researchers at the Burnham Institute for Medical Research (Burnham) have discovered a new player in the development of a disorder called Sporadic Inclusion Body Myositis (sIBM). sIBM is a muscle disease that affects predominantly older men, causing muscles to gradually weaken and waste away. The n...

High blood pressure in older adults traced to gene's effects in blood vessels

COLUMBUS, Ohio Scientists have identified the gene that sets off a sequence of events in the blood vessels of otherwise healthy adults that can lead to high blood pressure. The disease process eventually makes conditions in vessels ripe for the creation of blockages that can cause heart attacks, ...

No longer a gray area: Our hair bleaches itself as we grow older

Wash away your gray? Maybe. A team of European scientists have finally solved a mystery that has perplexed humans throughout the ages: why we turn gray. Despite the notion that gray hair is a sign of wisdom, these researchers show in a research report published online in The FASEB Journal ( htt...

Testosterone replacement theraphy beneficial in men 60 and older

SAN DIEGO, CA The risk of osteoporosis (bone fracture) in women is highly recognized by the public. Less appreciated is the fact that the disorder also occurs in men. Some two million males have been diagnosed with osteoporosis and another three million are at risk. Gender-based hormones and...

Tamiflu effective for treatment and prevention of influenza in children 1 year and older

Tamiflu (oseltamivir) significantly reduces illness severity and duration in children one year and older, particularly if given within 24 hours of symptom onset, according to new data presented at the World Society for Pediatric Infectious Disease (WISPID) meeting in Bangkok 15-18 November. The an...

Sleep quantity affects morning testosterone levels in older men

The testosterone levels of healthy men decline as they get older. As sleep quality and quantity typically decrease with age, objectively measured differences in the amount of sleep a healthy older man gets can affect his level of testosterone in the morning, according to a study published in the A...

1/3 of sexually active older adults with HIV/AIDs has unprotected sex

One out of three sexually active older adults infected with HIV has unprotected sex, according to a study by Ohio University researchers. A survey of 260 HIV-positive older adults found that of those having sex, most were male, took Viagra and were in a relationship. AIDs cases among the over-50 ...

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 Alberto Cordero of the School of Medicine, and the University Hospital, published ...

Fertility hope as study shows eggs survive in older ovaries

In research that could have broad implications for women's fertility treatments, scientists have found that despite their age, female mice have a renewable egg supply in their ovaries. The discovery, by Professor Jock Findlay from Prince Henry's Institute and Associate Professor Jeff Kerr from Mo...

High estrogen levels associated with dementia in older men

A prospective population-based study has found that higher estrogen levels in older men are associated with an increased risk of dementia. By contrast, levels of testosterone were not associated with cognitive decline. The study is in the August issue of Annals of Neurology, a journal published by ...

Confidence in memory performance helps older adults remember

Believing that you can retain a good memory even in your twilight years is the first step to achieving that goal. Those who believe they can control their memory are more likely to employ mnemonic strategies that help keep memory fit despite the march of time. These are the conclusions of a new Bra...

Alleged 40,000-year-old human footprints in Mexico much, much older than thought

Alleged footprints of early Americans found in volcanic rock in Mexico are either extremely old - more than 1 million years older than other evidence of human presence in the Western Hemisphere - or not footprints at all, according to a new analysis published this week in Nature. The study was co...

Amazon trees much older than assumed, raising questions on global climate impact of region

Trees in the Amazon tropical forests are old. Really old, in fact, which comes as a surprise to a team of American and Brazilian researchers studying tree growth in the world's largest tropical region. Using radiocarbon dating methods, the team, which includes UC Irvine's Susan Trumbore, found th...

'Sharp' older brains are not the same as younger brains

Researchers working with rats have found the first solid evidence that still "sharp" older brains store and encode memories differently than younger brains. This discovery is reported by a Johns Hopkins team in the issue of Nature Neuroscience released online Nov. 13. Should it prove to apply as...

AGU journal highlights -- Aug. 6, 2009

...Intergovernmental Panel on Climate Change's (IPCC) recent reports and are used as inputs into climate forecasts. However, a new study finds that these older assessments might overestimate current oceanic emissions of methane. In 1998, Rhee et al. measured the concentrations of methane and nitrous oxide in ...

Women often opt to surgically remove their breasts, ovaries to reduce cancer risk

... women who were BRCA1 gene carriers 52 percent had the surgery compared with 28 percent of the women who were BRCA2 gene carriers. "We found that older women were much less likely to have a mastectomy, but were more likely to have their ovaries removed," said Evans. Most of the women, specifically...

August 2009 Geology and GSA Today media highlights

...crater, the outline of the crater is still visible at the surface by a semicircular ring of water-filled sinkhole lakes, known by the Maya as cenotes. older geologic maps showed no surface expression of the buried crater. Gilli et al. present new strontium isotope (87Sr/86Sr) dates of outcropping limestone...

Reducing risk of hospitalization in the elderly

... older adults who have less strength, poor physical funct...e than $18.5 billion. With the number of Americans older than 65 estimated to double by the middle of the c...e expected to increase dramatically. Preventing older Americans from being hospitalized is more than jus...

Stem cell research: From molecular physiology to therapeutic applications

...re eggs may provide an efficient source of autologous stem cells for regenerative medicine. This group also tested whether pESCs can be generated from older females. Drs. Lingyi Chen works on mechanisms of early embryonic differentiation. In their review of current special topics on stem cells, Drs. Lingyi...

Earliest animals lived in a lake environment, research shows

...did. "It is most unexpected that these first fossils do not come from marine sediments," Kennedy said. "It is possible, too, that similarly aged or older organisms also existed in marine environments and we have not found them. But at the very least our work shows that the range of early animal habitat...

After dinosaurs, mammals rise but their genomes get smaller

... lots of new transposable elements and a dramatic drop-off in the number of older elements. But not in most mammals. In humans, macaques, cows, dogs and ... curve, with a peak of middle-aged LTRs and drop-offs both in the number of older and younger LTRs. The shape of the curve is consistent with previously publ...

New supercomputer to reel in answers to some of Earth's problems

...s helping scientists develop a new catalytic material based on small clusters of platinum atoms that does this at least 40 times more efficiently than older materials. Unlike a consumer buying a PC, EMSL purchased a custom-made machine from HP specifically designed for the demands of computational chemi...

C. difficile spores spread superbug

...ns associated with impaired immune defence began to lose weight and became moribund. The similarity with the human manifestation of the disease, where older or immune impaired patients tend to exhibit the symptoms of acute C. difficile infection, is clear and strengthens utility the mouse model as a valu...

A 'heart healthy' diet and ongoing, moderate physical activity may protect against cognitive decline

...t and risk of cognitive decline and dementia among older participants in the Cache County Study on Memory, ... 1995, 3,831 study participants 65 years of age or older completed a survey that included a food frequency ...itive Decline in Elderly Studies have found that older adults who are physically active may experience sl...

Results from trials of DHA in Alzheimer's disease and age-related cognitive decline

...ve result on one test of memory and learning, but that study was in healthy older adults, not people with Alzheimer's or another dementia. The results need c...900 mg per day of algal DHA on improving cognitive functions in 485 healthy older people (average age=70) with mild memory complaint. The primary outcome mea...

22nd Congress of the European College of Neuropsychopharmacology, Sept. 12-16, 2009, Turkey

.... Furthermore, mental disorders are common in older people and represent a barrier for active ageing (...al limitations are central to the concerns of many older people and often intertwined with poor mental heal... 22% amongst those 85󈟅 years. In addition, older people are the group with the highest suicide rate...

2 reproductive factors are important predictors of death from ovarian cancer

...exposure to reproductive hormones." There is a need for additional studies to examine reproductive factors in other populations, specifically among older women and those of various ethnicities, according to Robbins. Additionally, she suggested that studies examining the biologic properties of ovarian tu...

LSUHSC research helps link schizophrenia to specific DNA region

...te of Mental Health, schizophrenia is a chronic, severe, and disabling brain disorder that affects about 1.1 percent of the U.S. population age 18 and older in a given year. People with schizophrenia sometimes hear voices others don't hear, believe that others are broadcasting their thoughts to the world, ...

UTSA psychologist awarded $1 million for memory research

...recruiting younger adult volunteers aged 18-30 and older adults, aged 60 and above. Smith, who directs ...ospective memory works and how it is different for older adults aged 60 and above, and younger adults age 1... "What we have found in previous studies is that older adults often miss more of those targeted words," s...

Journal of Vascular and Interventional Radiology: New patient radiation safety guidelines

...nd influence as an academic and professional resource. "Members of SIR's Standards Division have continued to develop new content as well as to revise older documents as appropriate," added the interventional radiologist at Northwestern Memorial Hospital in Chicago, Ill. The 376-page collection guest-e...

Gene expression findings a step toward better classification and treatment of juvenile arthritis

...sion that indicated at least three subgroups of polyarthritis. There was an older subgroup (average age 11) that included both RF positive and negative child...ry gene expression signature bearing some resemblance to adult RA. A second older subgroup (RF negative) had less severe arthritis and an anti-inflammatory g...

Ovarian transplantation: New technique gives greatly improved results in this delicate operation

...use of the ageing of their eggs and ovaries. "This procedure is a solution to that social dilemma, allowing women to have children when they are older by preserving their ovaries when they are younger and transplanting them back at a later date. It can also be used to preserve the fertility of young ...
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