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Tag: "lived" at biology news

Men Estimate Men's Risks Of Common Disorders Higher Than Women Do, And Vice Versa

...evity: 87.5 per cent of all respondents said women lived longer. * Mental illness: 31 per cent of females compared to 18 per cent males believed women were more likely to suffer from mental illness, and 72 per cent of males compared with 61 per cent of females said 'both equally'. Professor Macintyre, fr...

New lifespan extension genes found

...at the gene was more active than normal, the yeast lived longer than normal. A third gene, Hst1, appears to act when both Sir2 and Hst2 are missing. Sir2 and the newly identified Hst genes account for all of the life-prolonging effects of caloric restriction in yeast, Lin said. In yeast, the effects of a...

Millennium Ecosystem Assessment: Many of 2 billion dryland dwellers at risk as land degrades

...ersity of Maryland: "For centuries pastoral people lived in such regions with minimal impact. This 'harmony' was a default result of smaller populations, low stocking rates, and large areas to forage on. The conversion of rangelands to croplands reduced the available pasture and the collection of firewood ...

HIV Therapy Greatly Extends Life of Key T Cells, Scientists Find

...al years ?the researchers detected CD4+ cells that lived for about three years, a result Dr. Kovacs calls “quite surprising.?/p> Using another labeling technique, the researchers determined that IL-2 boosts the numbers of two subsets of CD4+ cells: naïve cells, those that have never encountered an infe...

Naturally occurring asbestos linked to lung cancer

...y 10 kilometers (about 6.2 miles) farther a person lived from the nearest asbestos source. The association was strongest in men, but was also seen in women. No such association showed up in the pancreatic cancer group. The study was not designed to determine the "ground zero" risk for those living closest ...

Virginia Tech, Nanjing Institute researchers discover half-billion year-old fossils

...ng debate on the nature of Ediacara organisms that lived just before the evolution of familiar animals about 540-520 million years ago. ...

No small feat: First ever gene therapy success for muscular dystrophy achieved

... they grew faster, were physically more active and lived four times as long as untreated animals. "While we have much farther to go until we can say gene therapy will work in children, we have shown here a glimmer of hope by presenting the first evidence of a successful gene therapy approach that improved...

Lactose intolerance linked to ancestral environment

...k. On the other hand, most adults whose ancestors lived in very hot or very cold climates that couldn't su...from Europe can drink milk because their ancestors lived where dairying flourished and passed on gene mutations that maintain lactase into adulthood. The res...

Old drug shows new promise for Huntington's Disease

...l mice given water alone. The experimental animals lived 20 percent longer than the control animals, did better on tests of motor coordination, and had less weight loss. "It's a limited study, in that we used the same drug dose on all the animals as opposed to comparing different doses, but fairly convinc...

Prenatal exposure to famine increases risk of schizophrenia

...chizophrenia in adult life by examining people who lived through a massive famine in China from 1959-1961. The risk of schizophrenia was examined in the Wuhu region of Anhui, one of the most affected provinces. Rates were compared among those born before, during, and after the famine years. All psychiatric...

Scientists crack 40-year-old DNA puzzle and point to 'hot soup' at the origin of life

...stor (LUCA), which evolved into all life on earth, lived in a hot sulphurous pool or thermal vent. As it moved into cooler conditions, it was able to take up these two additional amino acids and evolve into more complex organisms. This provides further evidence for the debate on whether life emerged from a...

Restaurant seafood prices since 1850s help plot marine harvests through history

...ponent of the Census is creating a picture of what lived in the oceans before fishing became important, and how these populations have changed since fishing loomed large ?a time 50 years ago in some areas, 500 in others, and 1,000 or more in a few," he says. "The history of marine animal populations is a ...

A bug's life: Exceptional genomic stability yet rapid protein evolution in a carpenter ant mutualist

...up focused on the bacterium Blochmannia, which has lived inside Camponotus and related ant genera for the past 30 million years or more. The bacteria may utilize the ant host for basic metabolic functions, including the initiation of DNA replication. In turn, the microbes may synthesize certain nutrients t...

Extinct giant deer's descendant found in UK

... Megaloceros giganteus - meaning gigantic antlers) lived from 400,000 years ago to its extinction 8000 years ago and would have towered over its descendant, reaching a shoulder height of around two metres with antlers spanning 3.5 metres (10 feet). Deer from around the world (including the southeast Asian...

Study Holds Promise For New Way To Fight HIV

... Megaloceros giganteus - meaning gigantic antlers) lived from 400,000 years ago to its extinction 8000 years ago and would have towered over its descendant, reaching a shoulder height of around two metres with antlers spanning 3.5 metres (10 feet). Deer from around the world (including the southeast Asian...

Ancient anthropoid origins discovered in Africa

...two new species of tiny monkey-like creatures that lived 37 million years ago have been sifted from ancient...id, called Algeripithecus, found in Algeria, which lived around 45 million years ago. That species had been characterized by only a few teeth, which preclude...

Fish evolve a longer lifespan by evolving a longer reproductive period, researchers find

... that regardless of which environments the guppies lived in, there were no differences among their populations in the probability of having a post-reproductive lifespan or in its duration. "This is just what one might predict because these fish provide no care for their young," explained Reznick. "The ol...

Newly discovered birdlike dinosaur is oldest raptor ever found in South America

...rovides definitive evidence that dromaeosaurs also lived in South America, which was part of Gondwana. As a result, dromaeosaurs must have originated when all of the continents were still assembled in a single landmass during the Jurassic as far back as 180 million years ago--much earlier than previously t...

Nanoparticles, nanoshells, nanotubes: How tiny specks may provide powerful tools against cancer

...t. Researchers then stained the cells to see which lived and found that only HER2-expressing cells which had bound nanoshells and were exposed to the near infrared laser, died. Cells that were not exposed to laser light also survived, suggesting that the antibody-nanoshell treatment effectively destroyed H...

Missing fossil link 'Dallasaurus' found

...describe Dallasaurus, a three-foot long lizard who lived 92 million years ago in the shallow seas and shore...re popular for paleontologists to study. Mosasaurs lived and became extinct alongside dinosaurs, but few paleontologists specialize in them. Later mosasaurs ...

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