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Tag: "age" at biology news

Snoring in children might be an allergic type disease

...ear of life and/or who had asthma and/or eczema at age five years were more likely to snore. Breastfeeding, birth weight, body mass index at age 4.5 years and respiratory function whilst awake were found to be unrelated. The study cohort was ...

Bigger horns equal better genes

...ic diversity. However, once the ibex mature to the age when they begin competing for reproductive mates (7 to 12), horn length varies according to genetic diversity: the greater the diversity, the greater the length of the horns. The researchers believe the horn length discrepancies are evidence to ...

How to lose weight and not go hungry: HU researcher develops drug that mimics feeling of 'fullness'

...t less than the average for mice of their size and age who were not being given the compound. The peptide has been patented in Europe and the U.S., and a commercial firm, Bioline RX Ltd. Of Jerusalem has purchased development rights from Yissum, the Hebrew University’s technology transfer company, a...

Loss of stem cells correlates with premature aging in animal study

...term tissue maintenance, and so, they subsequently age before their time.” With this new knowledge of how DNA repair, stem cells, and the aging process interconnect, Brown, first author Yaroslava Ruzankina, and Amma Asare are currently using this mouse model to discover compounds that preserve stem ce...

Studies to find better ways to preserve human eggs, ovarian tissue under way

...They are collecting ovarian tissue from volunteers age 16 to 37 who need the tissue taken for some reason...ication in eggs. They are using eggs from 60 women age 18-42 that would be discarded because they are not adequate for in vitro fertilization. They also ar...

Sun exposure early in life linked to specific skin cancer gene mutation

...ikely to report high levels of sun exposure before age 20. People with the NRAS mutation were more likely to have had high exposure between the ages of 50 and 60. About 15 percent of melanomas contain the NRAS mutation. The findings come from the initial phase of an ongoing study that will ultimately ...

Breakthrough developments in rheumatoid arthritis reported

...dentifiers but scientists will have information on age and ethnicity to best match their groups to study. ...

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

... and 80 per cent of all skin cancers occur in this age group” says Dr Dolan. “It is important that we plan ahead so that we are able to care for patients with skin cancer without compromising other chronic dermatological diseases.” The authors – from the Dermatology Department at the Royal Vic...

Undergraduate research shows leaderless honeybee organizing

...honors students – they are so bright.” Pierce, age 22, has been working as a researcher in Schneider’s lab for the past two years through a UNC Charlotte Honors College program that fosters research experiences for undergraduates. Using an ingeniously designed experiment, Pierce and his co-author...

Risk of stroke doubles if diagnosed with Type 2 diabetes

...ntly diagnosed with Type 2 diabetes and had a mean age of 64 years. After five years of monitoring, stroke incidence rates were compared between the cohort and the general population. “What we found is that 9.1 per cent of the diabetes cohort had a stroke within the first five years of their diagnosis...

Smoking rate has plummeted in New York City

... declined twice as much as rates among other adult age groups Among all ethnic groups, Asian New Yorkers have made the most progress, with a 30% decline in the smoking rates, though Asian males still smoke at a rate of 16.4% Smoking rates on Staten Island have declined by only 0.4% since 2002, ...

Focused ultrasound relieves fibroid symptoms in women

... at least 25 percent of women in the United States age 25 to 50 suffer from symptomatic uterine fibroids. Fibroid symptoms can include excessive menstrual bleeding, enlarged uterine size, frequent urination, pelvic pressure or pain and infertility. According to the National Women’s Health Information...

Eavesdropping comes naturally to young song sparrows

...pertoire crystallizes at around 10 to 11 months of age and does not change. Beecher and his colleagues earlier proposed that eavesdropping and interactive singing are critical in song learning. However, they could not determine if the young birds learned more by direct interaction with a tutor or by ...

Resistant HIV quickly hides in infants' cells

...lyzed HIV-infected infants less than six months of age enrolled in a large, multi-center clinical trial covering 10 states. Their results showed that five of 21 HIV-positive infants were infected with drug-resistant HIV transmitted from their mothers—a surprisingly high figure. Of those five, four we...

Mice with a migraine show signs of brain damage

... in the Netherlands showed that in women under the age of 45, those who suffered from migraines were much more likely to have the type of brain damage done by a stroke, even though they had never reported symptoms of stroke. Friedman, a member of the board of directors of the American Headache Society...

Hearts of male and female rainbow trout are different

... rainbow trout. These differences occur at a young age and are only realized when the trout heart is contracting and not under resting conditions. The study is entitled Sex Differences in Cardiac Glucose Metabolism and Function in Immature Rainbow Trout (Oncorhynchus mykiss). It was conducted by Pava...

Machine preservation may promote more organ sharing

...ategory includes kidneys from deceased donors over age 60 years or those over age 50 with health conditions such as high blood pressure, stroke or elevated levels of a protein called...

First clinical trial of gene therapy for childhood blindness

...ults in severely impaired vision from a very young age and there are currently no effective treatments available. The new technique that will be used in the trial involves inserting healthy copies of the gene into the cells of the retina to help them to function normally. Restoring the activity in th...

Risk of lymphoma increases with hepatitis C virus infection

...e majority of patients were white, and the average age was 52 years. Patients in the HCV-infected group were more likely to have served during the Vietnam era (1964-1975) than were uninfected patients in the comparison group. Previous studies found that the prevalence of HCV infection is much highe...

Hepatitis E takes a piggyback

...okkaido, Honshu and Kyushu. They found that by the age of 150 days, over 95% of pigs had been infected wi...creting the virus when they are slaughtered at the age of 180 days are currently small. However, if the infection weakens and pigs don’t get infected with ...

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