decrease 2 7

Tag: "decrease" at biology news

Possible brain hormone may unlock mystery of hibernation

...ves, concentrations of HPc in the blood started to decrease prior to hibernation and remained low throughout the inactive state. Hibernation ended after blood HPc levels rose. Further study revealed an inverse relationship between HPc levels in the blood and brain. While HPc levels dipped in blood, the putat...

Use of amino acid supplement following a heart attack provides no benefit, may be harmful

...lowing a heart attack) over a 6-month period would decrease vascular stiffness and improve ejection fraction (a measure of how much blood the left ventricle of the heart pumps out with each contraction). The randomized, double-blind, placebo-controlled trial included 153 STEMI patients; 77 were 60 years or o...

Man's best friend: Study shows lonely seniors prefer playtime with pooch over human interaction

...e with the dog experienced a much more significant decrease in loneliness after five to six weeks of visits. The main way pets reduce loneliness in nursing homes is simply by being with people, not by enhancing socialization between people ?for instance, giving nursing home residents something to talk about ...

All placebos not created alike

...iving sham acupuncture reported a more significant decrease in pain and symptom severity than those receiving placebo pills for the duration of the trials. The results of this study show that the placebo effect varies by type of placebo used. "These findings suggest that the medical ritual of a device can de...

Loosen leash on cancer protein 'watchdog,' researchers say

...edisposition for developing cancer showed a marked decrease in tumor development when compared with mice that had normal p53 activity. The study also indicated that the treated mice did not suffer from the side effect the research team most feared: premature aging, which has been linked to overproduction of ...

Hap1 protein links circulating insulin to brain circuits that regulate feeding behavior in mice

...drug that decreases Hap1 in the hypothalamus would decrease the electrical drive that underlies eating behavior, resulting in weight loss and potentially longer lifespan.Ó ...

Drug-resistant bacteria patterns in intensive care units changing nationally

... the increase in MRSA prevalence, there was also a decrease in MRSA that was resistant to multiple drugs. The researchers hypothesize that the influx of MRSA strains from the community might have replaced those multidrug-resistant strains associated with the hospital. "Unlike traditional MRSA the community...

Study reveals classic symbiotic relationship between ants, bacteria

... long means there might be a mechanism in place to decrease the rate of antibiotic resistance - which could help address a significant problem facing modern medicine. "We can learn a lot about our own use of antibiotics from this system," he says. Currie studies the intricate relationships between certain s...

Exotic crab poised for widespread UK invasion

...ate up to 1,000km while growing to adult size. A decrease in river pollution and a prolonged period of drought in the late 1980s - which together improved habitat conditions for mitten crabs - are potential reasons for the recent population rise. Dr Bentley, of Newcastle University's School of Marine Sc...

How marine reserves are giving coral reefs a helping hand

...d news we had concerns that this might result in a decrease in the numbers of parrotfish, which could ultimately damage the health of the reef. More than 20 years ago sea urchins in the Caribbean were wiped out by disease, leaving parrotfish as the main grazer of reef surfaces. The fish use their teeth to rem...

Parts of the Caribbean and Central America are likely to have less summer rain

...ity of the computer models calls for a substantial decrease in tropical rainfall to occur by 2054, or sooner u... By the end of this century, the models call for a decrease in summer rainfall of 20 percent or more in parts of the Caribbean and Central America, Neelin said....

Carbon cycle was already disrupted millions of years ago

...bon isotopes 13C/12C has show a clearly measurable decrease of 0.1%. However in the Jurassic and Cretaceous pe...us widely-separated areas Van Breugel found a 0.4% decrease in the 13C/12C ratio. This means that there were large-scale changes in the carbon cycle over a shor...

Alternatives to the use of nitrate as a fertiliser

...ense is understood as the processes that produce a decrease in plant growth and thereby the productivity of crops. A thorough knowledge of these questions enables a more rational use of fertilisers in farming. Research for sustainable farming The possibility of using animal ammonium or urea as nitrogenate...

Breast implants not associated with cancer risk, study reports

...ancer Institute. Implants were associated with a decrease in breast cancer risk and an increased lung cancer risk, but these results likely reflect the lifestyles and smoking habits of the women in the study rather than an effect of the implants themselves, the authors conclude. Past reports have examined ...

Weizmann Institute suggests that immune cells help to maintain cognition and brain cell renewal

...ns, because aging is known to be associated with a decrease in immune system function. It is also accompanied by a decrease in new brain cell formation, as well as in memory skills. Therefore, by manipulating and boosting th...

Study by Einstein researchers could lead to a novel strategy for treating obesity

...othalamus of rats. The injections caused a chronic decrease in malonyl CoA levels, which dramatically increased the rats' food intake and led to obesity that was maintained for at least four months. "We showed in this study that disrupting malonyl-CoA levels in this region of the brain impairs the nutrient-s...

Spousal illness can trigger partner death

...gain. "Our work suggests that interventions might decrease the mortality of caregivers," says Christakis. "In...bility, and death can be self-reinforcing, since a decrease in the burden of these events in one person can have a cascading benefit for others. The training an...

Protein translation in sperm

...n sperm, and that its inhibition leads to a marked decrease in sperm motility, actin polymerization, the acrosome reaction and in vitro fertilization rates. Thus, protein translation in sperm is essential for sperm functions that directly contribute to fertilization. Dr. Breitbart is confident that "The new...

Stanford study of owls finds link in brain between sight and sound

...to objects that the monkey is about to look at and decrease their responses to all other objects in the world. Finding that auditory responses can be regulated by the circuits that control gaze in barn owls suggests that the brain uses a common strategy to focus attention that spans different types of animal...

Anthrax spores may survive water treatment

... 60 minutes in the water, there was no significant decrease in the number of viable spores. "Under those same conditions, one minute exposure could kill 99.99 percent of other waterborne pathogens that do not exist as spores," says Calomiris. Higher concentrations of chlorine were much more effective. A...

1 2 3 4 5 6 7 8 9 10