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Tag: "kind" at biology news

Researchers make headway in mystery of migraines

...s known to cause a form of inherited migraine--the kind that cause debilitating headaches and light flashes known as auras--target a cellular process involved in brain cell communication. "A number of mutations have been shown to result in familial migraines," says Dr. Rhoda Blostein--a medical scientist...

Stem cell therapy successfully treats heart attack in animals

...art failure." The researchers are using a special kind of stem cell in an early stage of development, called adult mesenchymal stem cells, to avoid potential problems with immunosuppression, in which every human's immune system might attack stem cells from sources other than itself. Bone marrow adult ste...

Any exposure to tobacco smoke during pregnancy is risky

... much damage as active smoking, and it is the same kind of damage," said Dr. Grant, whose primary area of study is genotoxicity and the mechanisms of DNA repair. "These kinds of mutations are likely to have lifelong repercussions for the exposed fetus, affecting survival, birth weight and susceptibility t...

Specialized immune-system B cells play double-barreled role

...hat there is a tiered response system in which one kind of B-1 cell consistently provides a low level of protection, while the other specifically responds to an infection to help eliminate it." According to Haas and Tedder, the findings offer potential insights into the mechanism of vaccine action. For e...

It's electric: Cows show promise as powerplants

...tewater. "Although it's too early to tell if this kind of fuel cell can produce significantly more electricity, the fact that the rumen fluid worked in our study means that there are additional electricity-producing microbes that we have yet to identify," Christy said. "The hope is that one day livestoc...

Modified collagen could yield important medical applications

...iments, Yu and his colleagues have shown that this kind of molecular marriage does take place. They attached fluorescent tags to the peptides and observed the glow in collagen that had been mixed with the smaller molecules. Exactly how and why the collagen and the peptides join is uncertain. But researche...

Scientists take aim at virulent bacteria by decoding machinery of key control enzyme

...entists have come a step closer to designing a new kind of drug that could stop virulent bacterial infecti...chemical reaction or its DNA binding process. This kind of rationally designed drug could be an alternative against infections that are resistant to current...

Unusual antibiotics show promise against deadly 'superbugs'

...iments, Yu and his colleagues have shown that this kind of molecular marriage does take place. They attached fluorescent tags to the peptides and observed the glow in collagen that had been mixed with the smaller molecules. Exactly how and why the collagen and the peptides join is uncertain. But researche...

Achilles heel of the herpes virus possibly found

...most guilt and shame. It can get inside almost any kind of human cell, reproduce in vast numbers, and linger for years in the body, causing everything from recurrent genital blisters to sores around the mouth. Its complications can kill, and it may increase susceptibility to many nerve and brain disorders...

New insight into autoimmune disease: Bacterial infections promote recognition of self-glycolipids

...ovides evidence that bacterial infections induce a kind of self-recognition that may contribute to some autoimmune diseases such as multiple sclerosis (MS) and Guillain-Barre syndrome (GBS). There is evidence that the development of certain autoimmune diseases may be associated with a bacterial or viral ...

Gifts from the sea

...akthroughs, and the MBL has been a center for this kind of work for over a century. The laboratory's proximity to the Atlantic Ocean; its expertise in collecting and maintaining marine creatures for study; and its casual, collaborative environment are key reasons scientists return each year. During a typ...

Why are coyotes getting more aggressive?

... on the fringe of urban and suburban areas. "This kind of aggressive behavior is usually the last stage before coyotes actually start attacking humans -- such as small children that are perceived by the coyotes as a potential food source," says Paul Curtis, associate professor of natural resources at Cor...

Size matters: Preventing large mammal extinction

...y in the journal Science, the largest study of its kind analyses key factors linked to the extinction of mammals. "Conservation biologists have always known that large bodied mammals are at greater risk of extinction," comments Professor Georgina Mace of the IoZ, "Now we understand the mechanisms, we are...

Most common lung cancers may begin in newly discovered cells

...he BASCs, alter their genes, and replace them in a kind of cellular gene therapy for genetic diseases such a cystic fibrosis. "This work has identified a new population of cells that links the normal biology of the lung to lung cancer development," said Bender Kim. "We need to continue to improve our und...

Say what? Bacterial conversation stoppers

...of the signal could be a mechanism that allows one kind of bacteria to block another kind of bacteria from counting how many neighbors they have and, in turn, properly controlling its behavi...

Promiscuous Catalytic Activity Possessed by Novel Enzyme Structure

...late the proteins,?said Stéphane Richard. “So it’s kind of a short-cut ?it’s a way to bypass what is done already in nature, but for which we don’t have the tools yet that nature has.?/p> The Salk Institute for Biological Studies in La Jolla, California, is an independent nonprofit organization dedica...

Stem cell training program to make its Stanford debut

...late the proteins,?said Stéphane Richard. “So it’s kind of a short-cut ?it’s a way to bypass what is done already in nature, but for which we don’t have the tools yet that nature has.?/p> The Salk Institute for Biological Studies in La Jolla, California, is an independent nonprofit organization dedica...

Looks matter to female barn swallows

... and other animals, this is the first study of its kind to meticulously rule out biases such as age, size and initial variation in signals of male quality, like coloration, and to demonstrate that mate-selection decisions are continual and dynamic. The results of the study have implications for the evolut...

Fundamental discovery -- Bone fracture

...scovery of "molecular shock absorbers" providing a kind of self-healing glue holding biological mineralized structures together when studying the abalone shell six years ago. "It's truly remarkable to find the same fundamental mechanisms operating in bone," said Morse. He noted that these mechanisms give...

Bitter or sweet? The same taste bud can tell the difference

...d opposite signals to the brain, depending on what kind of substance is on the tongue. Given the current f...ensure that the brain gets a clear message of what kind of taste is on the tongue." Taste buds are really clusters of 50 to 100 cells. Nerve fibers connect...

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