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Tag: "signs" at biology news

Saving endangered whales at no cost

...ic evidence indicates that 75% of individuals show signs of entanglement, mostly from lobster fishing gear. In the new work, the researchers analyzed the costs and benefits of two dramatically different lobster fishing strategies currently employed in the Gulf of Maine, the world's most important lobst...

Cancer vaccines -- Taking a jab at cancer by stimulating the immune system

...ancer patients. Four of the subjects have shown no signs of recurrence in the three years since the study began. "The trial was a look at the toxicity and feasibility of using a dendritic cell-based vaccine against pancreatic cancer," said Andrew Lepisto, Ph.D, post-doctoral researcher in the Univers...

Genes may determine success of hip replacement surgery

...urgery. Among those with symptoms, 91 had early signs of “aseptic loosening,?which describes a condition in which the artificial joint comes loose and the surrounding bone begins to dissolve. The other 71 patients had deep-seated infection, which occurs when the body is unable to control infection cause...

Lost dogs found more often than lost cats, study suggests

...gn in the neighborhood, the study showed. Posted signs resulted in the return of 15 percent of recovered ...ess than half of the pet owners in this study hung signs around their neighborhood," Lord said. "But this could be a very effective way to find a pet. If som...

Out of Africa -- Bacteria, as well

... Suerbaum at Hanover Medical University have found signs of the parallel evolution of man and H. pylori. Us...t Africa. Scientists have now uncovered similar signs of historical population migration in the genetic makeup of H. pylori. However, the genetic diversit...

Napoleon's mysterious death unmasked, UT Southwestern researcher says

...sy and physician descriptions revealed no telltale signs of arsenic poisoning, such as hemorrhaging in the lining inside the heart, and no skin, lung or bladder cancers were present. Gastric cancer was more likely at fault, Dr. Genta said. Other scholars have recently found that the plump emperor lost a...

Birth rate, competition are major players in hominid extinctions

... early hominid cultures 2.5 million years ago show signs of the ability to live in marginal areas and live on more dynamic, seasonal landscapes," Jablonski told attendees today (Feb. 16) at the annual meeting of the American Association for the Advancement of Science in San Francisco. Through time, th...

Study uncovers a lethal secret of 1918 influenza virus

...fected with the reconstructed 1918 virus. Clinical signs of disease were apparent within 24 hours of infection and within eight days euthanization was necessary. The rapid course of the disease mirrors how quickly the disease ran its course in its human victims in 1918. Upon infection, the virus grew ra...

Protein found to shield pancreatic cancer cells from self-destruction

... of TG2 expression (up to 94 percent) and telltale signs of autophagy in the cancer cells, which became riddled with cavities called vacuoles. When autophagy occurs, a double membrane forms around a cell organ, or organelle. This autophagosome then merges with a digestive organelle called a lysosome and...

Study of planarians offers insight into germ cell development

...s. Unlike fruit flies and nematodes, which show signs of germ cell initiation in the earliest stages of their embryonic development, planarians do not generally express nanos or produce germ cells until several days after hatching. This delayed initiation of germ cell growth is called inductive specific...

Lead-'scrubbing' drug may also improve muscle function in lead-exposed children

...f the study, “and it’s important to identify early signs of neuromotor (muscle-function) exposure effects—such as impaired postural balance or locomotion—before permanent damage occurs. Our research may help develop control strategies for minimizing exposure to lead at an earlier stage.? The team report...

New evidence of 'human' culture among primates

...artment of Biological Anthropology, has discovered signs that Capuchin monkeys in Brazil bang stones as a signalling device to ward off potential predators. While not conclusive, his research adds to a mounting body of evidence that suggests other species have something approaching human culture. A str...

New culture method for hepatitis C virus uses primary hepatocytes and patient serum

...cytes responded to viral replication by displaying signs of distress and cell death and by expressing interferon-beta, a cellular antiviral, in an effort to control the infection. This culture system provides a breakthrough in studying HCV replication in nontransformed hepatocytes, the natural target o...

A revolution in the monitoring of unborn babies

...ttingham. The device monitors the baby’s heart for signs of potential danger. It is small and easy to use so that mother’s-to-be can keep a regular check on their baby’s heart beat without having to go into hospital and be attached to a machine. No other technology allows them to do this. It took 15 years...

Light-based probe 'sees' early cancers in first tests on human tissue

...Engineering almost instantly detected the earliest signs of cancer in cells that line internal organs. If the preliminary success of the "optical biopsy" is confirmed through clinical trials, such a device could ultimately provide a particular advantage for early diagnosis, treatment and prevention of man...

Cells selectively absorb short nanotubes

...g on the concentration level, died or showed other signs of toxicity. "Our results demonstrate that cellular uptake in these lung cells depends significantly on the length of the nanotubes," Becker explains. "This is the first of many steps in the critical goal of reducing health risk by de novo engineerin...

Dig deeper to find Martian life

...though current drills may find essential tell-tale signs that life once existed on Mars, cellular life could not survive the radiation levels for long enough any closer to the surface of Mars than a few metres deep ?beyond the reach of even state-of-the-art drills. The study, published in the journal ‘Ge...

Osteoarthritis may be sign of faster 'biological ageing'

... hands were taken of all participants to check for signs of osteoarthritis and a blood sample was taken to assess "biological ageing" in white cell DNA. Biological ageing is likely to be reflected by the gradual shortening of telomeres, the length of DNA which caps the tips of chromosomes. A host of fact...

End-of-life care can be improved

...er the past five years there have been encouraging signs of improvement in end-of-life care in the ICU. Interventions have been developed, evaluated, and published to improve the care that patients and their families receive relating to the end of life in the ICU." Approximately one in five deaths in t...

Proteins may predict lung transplant rejection

...y to predict which transplants will fail, and when signs of chronic rejection appear, it is usually too lat...i-rejection drugs for people who do not show early signs of rejection. (Anti-rejection drugs have their own side effects, including an increased chance of de...

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