Body

Ibuprofen leads to extended lifespan, study shows

COLLEGE STATION -- Regular doses of ibuprofen extended the lifespan of multiple species, according to research published in Public Library of Science-Genetics.

"We first used baker's yeast, which is an established aging model, and noticed that the yeast treated with ibuprofen lived longer," said Dr. Michael Polymenis, an AgriLife Research biochemist in College Station. "Then we tried the same process with worms and flies and saw the same extended lifespan. Plus, these organisms not only lived longer, but also appeared healthy."

A 'GPS' for molecules

In everyday life, the global positioning system (GPS) can be employed to reliably determine the momentary location of one en route to the desired destination. Scientists from the Institute of Physical and Theoretical Chemistry of the University of Bonn have now developed a molecular "GPS" with which the whereabouts of metal ions in enzymes can be reliably determined. Such ions play important roles in all corners of metabolism and synthesis for biological products. The "molecular GPS" is now being featured in the journal Angewandte Chemie.

Trade winds ventilate the tropical oceans

Trade winds ventilate the tropical oceans and Kiel marine scientists have found an explanation for that increasing oxygen deficiency.

The changes can be measured, but their reasons were unknown. For several decades, scientists have carefully observed that the oxygen minimum zones (OMZ) in the tropical oceans are expanding. These zones are a paradise for some specially adapted microorganisms, but for all larger marine organisms such as fish and marine mammals they are uninhabitable. Thus, their expansion has already narrowed down the habitat of some fish species.

The state of shale

PITTSBURGH--University of Pittsburgh researchers have shared their findings from three studies related to shale gas in a recent special issue of the journal Energy Technology, edited by Götz Veser, the Nickolas A. DeCecco Professor of Chemical and Petroleum Engineering in Pitt's Swanson School of Engineering.

Hermit creepy crawlies: Two new taxa of wood-feeding cockroach from China

Scientists from the Southwest University, Chongqing, China have found a new species and a new subspecies of cockroach. What makes these creepy crawlies distinctive from the cockroaches most of us know is that they don't infest human houses, on the contrary they prefer to live a hermit life drilling logs, hidden away from human eyes. The study was published in the open access journal ZooKeys.

Helping parents understand infant sleep patterns

Most parents are not surprised by the irregularity of a newborn infant's sleep patterns, but by six months or so many parents wonder if something is wrong with their baby or their sleeping arrangements if the baby is not sleeping through the night. Healthcare providers, specifically nurse practitioners, can help parents understand what "normal" sleep patterns are for their child, according to researchers.

A vegetarian carnivorous plant

Carnivorous plants catch and digest tiny animals in order and derive benefits for their nutrition. Interestingly the trend towards vegetarianism seems to overcome carnivorous plants as well. The aquatic carnivorous bladderwort, which can be found in many lakes and ponds worldwide, does not only gain profit from eating little animals but also by consuming algae and pollen grains. This results in survival in aquatic habitats where prey animals are rare, and in increased fitness if the animals and algae are caught in a well-balanced diet.

Epithelial tube contraction

Researchers at the Mechanobiology Institute (MBI), National University of Singapore (NUS) have identified a novel mechanosensitive regulation of epithelial tube contraction. These findings are published on 19 December 2014 in Current Biology (doi: 10.1016/j.cub.2014.11.033).

Regulating tube constriction

New challenges for ocean acidification research

Over the past decade, ocean acidification has received growing recognition not only in the scientific area. Decision-makers, stakeholders, and the general public are becoming increasingly aware of "the other carbon dioxide problem". It is time to reflect on the successes and deficiencies of ocean acidification research and to take a look forward at the challenges the fastest growing field of marine science is facing.

Microplastics in the ocean: Biologists study effects on marine animals

Bremerhaven/Germany, 18 December 2014. Ingestion of microplastic particles does not mechanically affect marine isopods. This was the result of a study by biologists at the North Sea Office of the Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research (AWI) that was published recently in the journal Environmental Science and Technology. The study marks the launch of a series of investigations aimed at forming a risk matrix on the sensitivity of different marine species to microplastic pollution.

Cells identified that enhance tumor growth and suppress anti-cancer immune attack

(MEMPHIS, Tenn. - DECEMBER 18, 2014) A study led by St. Jude Children's Research Hospital scientists has identified the population of white blood cells that tumors use to enhance growth and suppress the disease-fighting immune system. The results, which appear in the December 18 edition of the scientific journal Immunity, mark a turning point in cancer immunology and provide the foundation for developing more effective immunotherapies.

Latest evidence on using hormone replacement therapy for treating menopausal symptoms

Hormone replacement therapy (HRT) is the most effective treatment for menopausal symptoms, in particular for younger women at the onset of the menopause, suggests a new review published today (19 December) in The Obstetrician & Gynaecologist (TOG).

The review highlights that menopausal symptoms, including hot flushes and night sweats are common, affecting around 70% of women for an average of 5 years but may continue for many years in about 10% of women.

Less than half of UK prescriptions for antipsychotics issued for main licensed conditions

Less than half of UK prescriptions for antipsychotic drugs are being issued to treat the serious mental illnesses for which they are mainly licensed, reveals research published in the online journal BMJ Open.

Instead, they may often be prescribed 'off label' to older people with other conditions, such as anxiety and dementia, despite the greater risk of potentially serious side effects in this age group, the findings indicate.

The Lancet: Doctor who survived Ebola received experimental drug treatment

A Ugandan doctor, who contracted Ebola in Sierra Leone, survived after being flown to Germany for aggressive treatment involving a new drug under clinical development for vascular leakage [1]. Dr Timo Wolf and colleagues, from University Hospital Frankfurt in Germany, detail the successful intensive-care treatment the doctor received under biosafety level 4 conditions in an Article published in The Lancet.

Older kidney donors with hypertension may have good kidney health following donation

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