previous 2 3

Tag: "previous" at biology news

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

...20 billion a year in workers' compensation. In previous studies, the researchers pinpointed these early warning signals in a rat model of RMI. The current study is the first to identify the warning signals in humans. For the study, they recruited 22 participants who were suffering from repetitive-stres...

In obesity, brain becomes 'unaware' of fat

...eversible than that.? However, Cowley cautioned, previous studies in humans haven’t always supported the idea that reducing fat intake alone has a major effect on obesity, noting that the digestive systems of mice and humans differ substantially. His team has plans to examine these effects in overweight pri...

Study finds antibiotic resistance in poultry even when antibiotics were not used

... now it's essentially unchanged," Lee said. In previous studies, Lee has tried to recreate experimentally conditions that should lead to the swapping of resistance genes among bacteria. Lee said these events ?known as the horizontal transfer of genes ?do occur, but they may not be as common as initially t...

Researchers identify gene involved in dog size

...as already been well established. Building upon previous research showing that the IGF-1 gene plays an important role in growth, body size and longevity in mice, the dog researchers used physical observations, X-ray imaging and DNA sequencing and genotyping analysis to study Portuguese water dogs—a breed t...

New compound prevents alcoholic behavior, relapse in animals by blocking stress response

...diction is treated." The new findings build on previous work showing the effectiveness of blocking certain CRF receptors—proteins that bind CRF and make it active—in treating alcohol dependence in animals. CRF levels in the brain rise in the short term after drinking; in subjects that are not dependent, t...

RNA splicing factor implicated in ovarian tumor cell growth

... of tumor cells in test-tube experiments. "In a previous study, we observed that human ovarian tumors overexpressed polypyrimidine tract-binding protein, or PTB, and another splicing factor compared to normal matching ovarian tissues," said William Beck, professor and head of biopharmaceutical sciences. ...

Tracking sperm whales and jumbo squid

... after a deep nighttime dive," he explained. In previous studies, Gilly found that jumbo squid are well adapted to the low-oxygen environment in deeper waters, where they spend most of their time. However, he added, at depths of 800 feet or more, where it’s very cold and oxygen levels are extremely low, th...

Type of stem cell found to reside in transplanted lungs

...es such as bone, cartilage and fat cells. However, previous laboratory studies have demonstrated the beneficial effect of these cells in various diseases, such as models of heart attacks and pulmonary fibrosis. The current study of MSCs included 172 bronchoalveolar lavage fluid samples collected and analyz...

Study finds surfing safer than soccer

... In contrast, previous studies conducted by Nathanson researching the injuries of recreational surfers found that lacerations and contusions were the most common reported injury ?these were the second most common injury among contest surfers. Most of these injuries were c...

Stress may help cancer cells resist treatment, research shows

...ing persistent stress and depression, according to previous research. The goal of the current study was to determine whether there is a direct link between stress hormones and changes in cancer cells. While a link between stress and cancer has been suggested, studies in large groups of people have been mi...

Scientists uncover link between ocean's chemical processes and microscopic floating plants

...es in some phytoplankton have been observed during previous experiments," said Wingenter. "The consequences for marine organisms, their ecosystems and climate-relevant gases are unknown." During the study, concentrations of dimethyl sulfide (DMS) and chloroiodomethane, produced by phytoplankton in ocean wat...

Massive coral death attributed to earthquake

...al reefs in this remote region can return to their previous condition and provide local communities with the resources they need to prosper. The recovery process will be enhanced by management that encourages sustainable uses of these ecosystems and the protection of critical habitats and species to help this...

Africa's first large-scale HIV vaccine study launches

... to evaluate safety and immune responses. In those previous trials this vaccine was found to be safe and to stimulate cellular immune responses against HIV in more than half of volunteers. Merck Research Laboratories developed the test vaccine that is based on an adenovirus -- a common cold virus that has b...

Rapid oral HIV test shows great promise according to MUHC-led research

...roved by the US Food and Drug Administration, some previous studies had indicated that it was not sufficiently precise. As a result, the Centre for Disease Control (CDC) called for more definitive studies leading to this study in rural India. "Based on our findings, the oral test is the preferred choice f...

Research finds music training 'tunes' human auditory system

...ex processing. These findings are in line with previous studies by Wong and his group suggesting that musical experience can improve one’s ability to learn tone languages in adulthood and level of musical experience plays a role in the degree of activation in the auditory cortex. Wong also is a faculty me...

Anxiety disorders surprisingly common yet often untreated

...s been unable to stop or control worrying over the previous two weeks. Bringing this information to the physician’s attention is important because the doctor may be focused on the patient’s physical complaints and unless prompted by the patient or test results is unlikely to assess the patient’s mental statu...

Bacteria control how infectious they become, study finds

...hout RfaH, bacteria lose the ability to infect. In previous laboratory experiments, the researchers found that pathogens lacking RfaH grow at much slower rates. “Cells usually don't die when RfaH use changes,?Svetlov said. “Rather, bacteria seem to manipulate the protein, to play around with it. Too much R...

Progress toward artificial photosynthesis?

...aking the C–O bonds in CO2. In contrast to most previous approaches, Antonietti’s team worked with metal-free catalysts, turning toward plants for inspiration. Photosynthesis in modern green plants involves an important intermediate step: the bonding of CO2 to nitrogen atoms to form carbamates. The German ...

New mechanism for nutrient uptake discovered

... to shut down extremely fast and can even memorize previous exposures," noted co-author Wolf Frommer. "Imagine a large animal marking its territory. A sudden flow of ammonia could be toxic to the plant. If it weren't for a rapid-fire shutdown plants could die. The conservation of this feature in the related t...

Indicators for risk of heart disease are higher in passive smokers

...as high when measuring cotinine levels compared to previous studies based on self-reported exposure. The association changed little even after researchers adjusted for participants' self-reported fruit and vegetable consumption ?one of the more influential aspects of diet on cardiovascular health ?and for ...

1 2 3 4 5 6 7 8 9 10