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Tag: "signs" at biology news

Liver cancer patients with high serum levels of hepatitis B virus face poorer outcomes

...lood counts, renal and liver function and clinical signs and symptoms. They then performed statistical analysis to assess which factors might have influenced patient outcomes. The median survival of all patients was 6.83 months. Patients with high pre-treatment HBV DNA had a significantly higher inciden...

Loss of stem cells correlates with premature aging in animal study

...l Stem Cell. “The reason we’re seeing the early signs of aging in these mice is that we’re exhausting th...s of adult mice, they noticed that the mice showed signs of premature aging, such as hair graying, hair loss, and osteoporosis, within three to four months. ...

In mice, drug protects against diabetes and atherosclerosis

... a high-cholesterol or high-fat diet, the expected signs of metabolic diseases such as atherosclerosis, type 2 diabetes, and fatty liver disease never developed. Recently, researchers in Hotamisligil's lab and at the Garvan Institute of Medical Research in Australia also demonstrated that these genes were ...

Breakthrough developments in rheumatoid arthritis reported

...res at x-rays of hands, searching out the telltale signs of inflamed joints and wrists from his research subjects with rheumatoid arthritis. With these clinical features at his side, he turns to the basic building blocks of life – the human genome – to figure out what makes these people susceptible to the ...

Study finds mix of disease processes at work in brains of most people with dementia

...ver, an individual’s likelihood of having clinical signs of dementia increases with the number of different...results showed that only 30 percent of people with signs of dementia had Alzheimer’s disease alone. By contrast, 42 percent of the people with dementia had A...

Extra-aggressive form of idiopathic pulmonary fibrosis identified

...e time of onset of symptoms, and to look for other signs that allow the identification of these rapid progressor patients". In this study the authors performed global gene expression analysis and other molecular studies in a subset of patients and identified a number of genes that were differentially e...

For many insects, winter survival is in the genes

...living in northern climates don't die at the first signs of cold weather. Rather, new research suggests that they use a number of specialized proteins to survive the chilly months. These so-called "heat-shock proteins" ensure that the insects will be back to bug us come spring. A study of flesh flies a...

Lessons from the orangutans: Upright walking may have begun in the trees

...umans. Paleontologists have conventionally used signs of bipedalism as key criteria for distinguishing early human, or "hominin," fossils from those of other apes. But, this distinction is complicated by recent fossil evidence that some early hominins, including Lucy ( Australopithecus afarensis ), live...

Salk scientists hammer out a pathway that promotes muscle cell survival in mice

...REB), had hunched backs, muscle wasting, and other signs of unhealthy muscles. Although CREB had long been studied for its role in glucose regulation in metabolic tissues like the liver and pancreas, its function in muscle tissue was unknown. Then, the researchers noticed that mice lacking CREB activity in...

A cherry on top: Tart cherries may alter heart/diabetes factors

...to humans. But they are encouraged by the positive signs seen in the new data. "Rats fed tart cherries as 1 percent of their total diet had reduced markers of metabolic syndrome," says Seymour. "Previous research by other groups studied pure anthocyanin compounds rather than anthocyanin-containing whol...

Cornell lab confirms deadly fish virus spreading to new species

...xhibit symptoms. Some may be carriers, and visible signs of the disease may vary from species to species. Containing the spread of the virus in New York will require restrictions on the movement of live fish, testing fish and surveillance. For instance, New York state regulations require that bait fish ...

Red flag for repetitive stress injuries identified for first time in humans

...arly indicators of inflammation ?potential warning signs ?in work-related injuries caused by repetitive motion. Their findings could someday lead to early detection and prevention of debilitating conditions such as carpal tunnel syndrome and tendonitis. The new study from Temple University senior rese...

Male-killing bacteria makes female butterflies more promiscuous

...ore sexually rampant. Males on the other hand show signs of fatigue and put less effort into mating. In some populations of tropical butterfly the entire mating system is determined by a group of bacteria known as Wolbachia, according to the study, published in the journal ‘Current Biology'. Dr Sylv...

Mutation improves memory, may lead to memory-enhancing pill

...rease in the memory-blocker's concentration—showed signs of memory impairment. "There are very few examples where you can increase memory, especially by deleting genes," said study author Nahum Sonenberg of McGill University in Montreal, Canada. "It's a small, but important part of the big puzzle of how...

Drug-resistant bacterial infections serious complication after corrective eye surgery

...should be informed of the risk factors and warning signs of infectious keratitis and need to be advised to ...seek medical attention immediately if they develop signs or symptoms of infectious keratitis. A high degree of suspicion, coupled with prompt and appropriate...

How trees manage water in arid environments

...on every summer. Certain roads have yellow warning signs posted -- "Do Not Cross When Flooded." Though these signs may seem out of place in the middle of a desert, they have a serious purpose. In Arizona, as in othe...

Synthetic peptide targets latent papilloma virus infections

...rlooked unless laboratory staining is used to find signs of pathology, as in Pap screening. If untreated or left to flare up repeatedly, the warts can progress to cancer. Earlier work by Botchan and numerous other researchers on the human and cow (bovine) papilloma virus has shown how the virus moves int...

Chlamydia vaccine a step closer to reality

...infected because there are not really any physical signs or symptoms, so by and large they don't get treatment." Professor Timms said Sanofi-Pasteur was one of the world's largest companies devoted to the development of human vaccines. "The fact that such a large vaccine company as Sanofi-Pasteur has...

Cold sore virus might play role in Alzheimer's disease

...synapse. Damage to synapses is one of the earliest signs of Alzheimer's disease. Another possibility is that the body's immune response against herpes somehow damages the brain, and that such damage is worse in people with the ApoE-4 copy of the gene. Earlier this year Federoff's team published a study ...

First-degree fetal heart block may be reversible

...nti-La antibodies to determine if there were early signs of fetal heart problems. They also explored whether early treatment would reverse the problems. The team found that while first-degree fetal heart block may be reversible with the steroid drug dexamethasone, the condition could advance within as ...

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