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Tag: "humans" at biology news

Small worm yields big clue on muscle receptor action

...bunit of a neurotransmitter receptor found in both humans and the much-studied laboratory nematode C. elegan...nd said the finding might have direct relevance to humans because the ACR-16 receptor is very similar to the alpha-7 nicotinic receptor in the human brain. ...

Study: Well-known protein helps stem cells become secretory cells

... fruit fly embryo, approximately six years ago. In humans and in fruit flies, the gland secretes saliva, a fluid containing water, mucus, electrolytes, and food-dissolving enzymes, into the mouth, and is important to the digestive system. In their new experiments, the researchers looked at the expression o...

UNC plant researchers discover proteins interact to form hair-trigger protection against invaders

...ersity, has been applied to yeast, fruit flies and humans but not to plants in a large, systematic way. Arabidopsis was the first plant for which scientists succeeded in mapping its entire genetic composition. Dangl is also with UNC's Curriculum in Genetics, Department of Microbiology and Immunology and Ca...

Chickadees can help humans get their bearings

... issue of Biology Letters. To get their bearings, humans and other animals are often guided by the geometrical shape of their environment. For example, humans have an easy time distinguishing the door located at the ends of a hallway from those located in the...

FDA approves more generic AIDS drugs

...ersity, has been applied to yeast, fruit flies and humans but not to plants in a large, systematic way. Arabidopsis was the first plant for which scientists succeeded in mapping its entire genetic composition. Dangl is also with UNC's Curriculum in Genetics, Department of Microbiology and Immunology and Ca...

Diabetic nerve therapy shows 'striking' results

...ing protein protected against nerve damage that in humans can lead to limb loss." The results of the pre-clinical studies were recently presented to the American Diabetes Association in California and the first phase of clinical trials has now begun. An estimated 50 per cent of patients with long-term dia...

Big differences in duplicated DNA distinguish chimp and human genomes

A study comparing the genomes of both humans and chimpanzees has found that much of the genetic...to the overall genome landscape between chimps and humans can be attributed to large segmental duplications. Such large-scale genetic events have altered more...

New method shows it is possible to grow bone for grafts within a patient's body

...cessary to determine if the procedure will work in humans and, if it does, to get it approved for human treatment. At the same time, they hope to test the approach with the liver and pancreas, which have outer layers similar to the periosteum. ...

Scientists reveal how disease bacterium survives inside immune system cell

...transmits Lyme disease and was first identified in humans in 1996. Human granulocytic anaplasmosis (HGA) -- formerly called human granulocytic ehrlichiosis -- is prevalent in Minnesota and along the East Coast. HGA typically causes mild symptoms that include fever, muscle aches and nausea. Some 362 U.S. cas...

Genetic links could unlock clues to leading cause of blindness

...tween rhesus monkeys with macular degeneration and humans could unlock secrets about the earliest stages of ...on and genetic markers for macular degeneration in humans and rhesus monkeys, findings recently published in the online edition of the journal Experimental Ey...

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

...ng gene expression, DNA replication and repair. In humans DNA methylation occurs on the C (cytosine) rather ... are resistant to current antibiotics. And because humans don't have Dam methylation, this kind of drug would not interfere with important biological processe...

Study shows humans have ability to track odors, much like bloodhounds

Though humans may never match the tracking ability of dogs, we a...the ears. "It has been very controversial whether humans can do egocentric localization, that is, keep their head motionless and say where the spatial source...

Montreal researchers probe the genetic basis of memory

...hat inhibit memory storage." Although research on humans is still a distant possibility, the scientists believe their discovery may hold promise in the treatment of a variety of illnesses linked to memory. "The discovery of the role of GCN2 in long-term memory may help us develop targeted drugs designed to...

Caloric restriction won't dramatically extend life span in humans: UCLA research

...ew years to a human life span, but will not enable humans to live to 125 and beyond, as many have speculated...ts beneficial effects on longevity, the benefit to humans is going to be small, even if humans restrict their caloric intake substantially and over long perio...

Evolution of taste receptor may have shaped human sensitivity to toxic compounds

... the receptor gene arose prior to the expansion of humans out of Africa. The researchers went on to show experimentally that such variants of the receptor, when expressed in individual cells, conferred an increased sensitivity toward several harmful compounds found in nature. The work strongly supports a ...

Scripps research scientists solve structure of a critical innate immune system protein

...ch is active in eukaryotic organisms as diverse as humans and fruit flies. Broadly speaking, the innate immune system works something like this. Certain cells have the ability to recognize foreign molecules such as components of membrane like LPS or other protein molecules unique to microorganisms . The pre...

Biologists determine genetic blueprint of social amoeba

...ave been conserved or adapted through evolution in humans and other organisms. "The cells which gave rise t...ariety of studies. "An organism's relationship to humans depends on how related the proteins are that are found in the two cell types," says Kuspa. "You can ...

Researchers Discover That Microbes Can Produce Miniature Electrical Wires

...out oxygen) that use metals to gain energy the way humans and other organisms use oxygen. They are distributed throughout the world in a wide variety of soils and sediments. Geobacter have been used to help remove contaminants from underground petroleum spills and landfill pollution of groundwater, as well ...

Bees, Brains and Addiction

... UCSD have turned to bees. Granted, the brains of humans and bees don't look much alike. But how bees respo...xerts such a powerful influence on the behavior of humans and other animals that a rat will work so tirelessly when it is rewarded with electrical stimulation...

How monarch butterflies are wired for navigation

...t light that has become an anathema to cancer-wary humans is critical for butterfly navigation. Also, the researchers were surprised to discover a key wiring connection between the light-detecting navigation sensors in the butterfly's eye and the creature's circadian clock--a critical link if the butterflie...

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