true 2 2

Tag: "true" at biology news

Researchers reveal secrets of flying snakes

...al Laboratory, found that paradise tree snakes are true gliders, traveling further horizontally than dropping vertically. The best flight Socha recorded traveled 13 degrees from the horizon at the end of its trajectory. Socha correlated 19 performance variables, such as glide angle and horizontal speed, ...

New understanding of cell movement may yield ways to brake cancer's spread

...e now know this is done using a protein that holds true in most cellular systems. Seeing how this process directs cells can help us better address a host of diseases that result from too little or too much cell movement, or from cells moving in the wrong direction and to the wrong place." Dr. Vuori and h...

Ancient DNA helps clarify the origins of two extinct New World horse species

...ged horses, the Hippidion genus, and caballine, or true horses, all arose from a common lineage. The authors showed that the Hippidion genus is only 3 million years old, a much more recent date than previously believed. "South American horses were thought to stem from a very old lineage of fossil forms i...

Specialized immune-system B cells play double-barreled role

...B-1 cells and their subtypes remain unknown. "The true function of B-1 cells in the body has been highly controversial over the past two decades," said Tedder. "They appear to be a primary defense mechanism for innate immunity in infections. In particular, however, the B-1b cells have been largely ignore...

Biologists determine genetic blueprint of social amoeba

... together, differentiate into tissues and become a true multicellular organism with a fruiting body composed of a stalk with spores poised on top. This increases its utility in a variety of studies. "An organism's relationship to humans depends on how related the proteins are that are found in the two ce...

How monarch butterflies are wired for navigation

...elestial guide to help them keep to a straight and true path southward. But details of their navigational machinery have remained a mystery. Now, researchers, led by Steven Reppert of University of Massachusetts Medical School, Ivo Sauman of the Czech Academy of Sciences and Adriana Briscoe of the Univer...

Scientists discover that three molecules may be developed into new Alzheimer's drugs

...y be needed to control it, said Kosik. The same is true for many other diseases –?from AIDS to cancer. "It is likely that we will need to strategically target different aspects of the disease and put them together." Kosik and his team chose to focus on the neurofibrillary tangles of neurons in the brain ...

Scientists at Galileo Pharmaceuticals confirm inflammatory response linked to glucose levels

...y be needed to control it, said Kosik. The same is true for many other diseases –?from AIDS to cancer. "It is likely that we will need to strategically target different aspects of the disease and put them together." Kosik and his team chose to focus on the neurofibrillary tangles of neurons in the brain ...

Scientists find that protein controls aging by controlling insulin

...it to make up for the resistance. The opposite was true with the mice deficient in Klotho. They were more sensitive to insulin and had reduced levels of it. The influence on insulin creates a problem for Klotho should it be used as a therapy against aging: It may extend life, but it could also make an a...

New type of rejection blocker protects kidneys after transplant

...ansplant recipients, in which we will test whether true immune tolerance can be achieved," Bluestone said. That new trial, to begin this fall enrolling patients who receive kidney transplants from living donors at UCSF, will test whether transplant patients can be treated with belatacept and can gradually...

Space matters: Estimating species diversity in the fossil record

...ies-area effect and are not actually the result of true changes in the distribution of species. Given the lack of uniform geographic sampling in paleontological data, the impact of this effect may be significant - and likely applies to other taxa as well. Once the effect is factored in, one might expect s...

Missing Receptor Molecule Causes Tumor Growth

...althy tissue, cells grow and divide - this is also true of cancerous tumors. The difference between the two lies in the regulation, which functions well in healthy tissue, but not in tumors. An important mechanism of this regulation is programmed cell death, known as apoptosis. It causes the controlled de...

Nanoparticles carry cancer-killing drugs into tumor cells

...althy tissue, cells grow and divide - this is also true of cancerous tumors. The difference between the two lies in the regulation, which functions well in healthy tissue, but not in tumors. An important mechanism of this regulation is programmed cell death, known as apoptosis. It causes the controlled de...

Biased reporting found in cancer prognostic studies

...e retrieved, making it impossible to determine the true nature of the biases. "We believe that this study provides the most compelling evidence yet that the published prognostic literature is a serious distortion of the truth," write Lisa M. McShane, Ph.D., of the National Cancer Institute in Bethesda, a...

Gambling monkeys give insight into neural machinery of risk

...parts of the brain are signaling information about true reward and punishment experiences," said Platt. He emphasized that such animal studies are a highly useful complement to human studies and genetic studies using mice. Neuroimaging studies in humans performing such tasks can identify brain regions in...

Fundamental discovery -- Bone fracture

...urred. "As if this weren't bad enough, it is also true that the materials properties of the bone decrease with age," said Hansma. "Not only is there less bone, but what exists is less strong. The cause of this is not well understood. Our research is aimed at understanding that." Hansma noted that bone h...

For first time, brain cells generated in a dish

...isolated for the first time what appears to be the true candidate stem cell," said Steindler, a neuroscientist and member of UF's Program of Stem Cell Biology and Regenerative Medicine. "There have been other candidates, but in this case we used a special microscope that allows us to watch living cells ov...

Chemical 'band-aid' prevents heart failure in mice with muscular dystrophy

...vidual heart muscle cells, and it turned out to be true at the organ level, also." The key to the U-M discovery was technology developed by Soichiro Yasuda, Ph.D., a post-doctoral fellow and co-first author of the study. He created a device to allow the simultaneous measurement of force and intracellular...

A novel method to measure circadian cycles

...ries between individuals. Unlike an individual's true rhythm, a fibroblast cell culture's rhythm does not vary with changes in light exposure or sleep habits. The researchers point out that their method can expose differences in circadian rhythms; it does not, however, directly measure the signal from t...

Molecular miners find pain relief drugs from the sea

... first to isolate and characterise ACV1. It was a true collaborative venture starting with genes discovered by Associate Professor Gayler, Mr Sandall and Mr Keays, capitalizing on the pharmacological and chemical expertise of Associate Professor Livett and Dr Down, marrying with the physiological and pai...

1 2 3 4 5 6 7 8 9