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Tag: "parts" at biology news

Scientists discover the body's marijuana-like compounds are crucial for stress-induced pain relief

... active longer, Hohmann said. Apparently, several parts of the brain are involved in the effect, most notably a structure in the midbrain known as the periaqueductal gray. In this region, stress causes the release of the naturally occurring marijuana-like compounds in the brain. A drug derived from the n...

To translate touch, the brain can quickly rearrange its sense of the body

...ckly, altering within a matter of seconds how body parts and individual touch sensations are perceived. The work is reported by researchers Frederique de Vignemont, Henrik Ehrsson, and Patrick Haggard at University College London. The information that is integrated in the course of proprioception comes f...

International Team Determines Geographic Origin of Leprosy

...prosy, which remains a significant problem in some parts of the world today." The research team included scientists from institutions in the United States, France and seven other countries. Led by Stewart T. Cole, Ph.D., of the Institut Pasteur in Paris, the investigators scanned the genetic material of M...

Virginia Tech group adds tools to DNA-targeted anti-cancer drugs

... release, which might result in an impact on other parts of the cell." Because the therapeutic complexes only activate with visible light, the researchers are now able to add a luminescent tag that glows in the presence of ultra violet (UV) light. "The UV light does not activate the system but will allow ...

Bad aftertaste? New sensory on/off switch may 'cure' bane of artificial sweetener search

... release, which might result in an impact on other parts of the cell." Because the therapeutic complexes only activate with visible light, the researchers are now able to add a luminescent tag that glows in the presence of ultra violet (UV) light. "The UV light does not activate the system but will allow ...

Purdue scientists may have found key to halting spinal cord damage

...fter initial traumatic injury. "Unlike most other parts of the body, spinal cord tissue does not heal after injury," Shi said. "After the initial shock, it actually gets worse. Science has long been aware that some chemicals the damaged cells release are part of the problem, but no one has ever been sure ...

A protein in the eye may prevent immune response and protect eyes from disease

...s F4/80 found on immune cells in the eye and other parts of the body may have a function in the regulation ...er piece of the "immune privilege" puzzle. Certain parts of the body, including the eyes, brain, gastrointestinal system and reproductive system have the abi...

Study: Harmless virus kills some cancers

...hat cover or line all of the internal and external parts of the body. No matter the type of epithelial cancer cells, when treated with AAV2, all cancer cells were dead in six days. Though previous have investigated the cancer-targeting potential of AAV2, none allowed the AAV2 to remain in culture long enou...

Scientists find microRNAs regulate plant development

...s roots - a type of root that develops from aerial parts of the plant and is important for propagation through cuttings. Auxin is known to be a major regulator of adventitious root formation and normal Arabidopsis plants form multiple adventitious roots on the hypocotyl (stem just above the root) when trea...

Compound might defeat African sleeping sickness, clinical trial beginning this month

..., the catastrophic illness has come back to ravage parts of Angola, the Democratic Republic of the Congo, the Sudan and other countries. In some regions, the tsetse fly-borne infection rivals or exceeds the toll AIDS takes. Trypanosomiasis is passed from human to human by tsetse fly bites. It produces fev...

Siberian tigers hang tough

...seen spiraling decreases in tiger numbers in other parts of Asia. The announcement also comes just a few months after WCS conservationists learned the Olga, a 14-year-old Siberian tiger had been killed by poachers, after scientists had been continuously monitoring her whereabouts from more than a decade. ...

Tetanus toxin found to have therapeutic properties

...they are very encouraging. Two separate, distinct parts form the tetanus toxin molecule: one part is the cause of the toxic effects and the tetanus symptoms; the other, however, is harmless and is able to penetrate and affect the nervous system. This harmless part, called the carboxy-terminal domain, has ...

Can't serve an ace? Could be muscle fatigue

...his leads to errors about where the different body parts are located." Professor Proske said the research could also offer insight into the symptoms of some motor system diseases such as Parkinson's disease. The abnormal movements were likely to relate, in part, to a disturbed sense of effort, he said. ...

Study casts doubt on 'Snowball Earth' theory

...ence from the drill core does not prove that large parts of the ocean remained free of sheet ice during the pre-Cambrian glaciation. It is statistically unlikely but possible, Olcott said, that the drill core found one of the tiny "refugia" for marine life whose existence is allowed under the "Snowball Ear...

Researchers devise new technique for creating human stem cells

... these cell types are derived from three different parts of the embryo, this really demonstrated the ability of these cells to give rise to a variety of different cell types." Furthermore, Eggan noted that genetic analyses of the fused cells revealed that the somatic cell genes characteristic of adult cel...

Gambling monkeys give insight into neural machinery of risk

...e interesting to trace this circuitry to see which parts of the brain are signaling something about subjective utility and which parts of the brain are signaling information about true reward and punishment experiences," said Platt. H...

For first time, brain cells generated in a dish

...enerate specific neurons. "As far as regenerating parts of the brain that have degenerated, such as in Parkinson's disease, Huntington's disease and others of that nature, the ability to regenerate the needed cell type and placing it in the correct spot would have major impact," said Dr. Eric Holland, a n...

Crisis in African fish supplies looms, experts warn Africa leaders

...ervices. 3. Improve fish market chains In many parts of Africa, post-harvest losses to spoilage due to inadequate landing, processing and trading sites exceed 30% of the catch. Weak market infrastructure in rural areas means most fish is still marketed as dried and/or smoked products. Investments to s...

Leptin-signaling Protein Maintains Normal Body Weight And Energy Balance In Mice

...ervices. 3. Improve fish market chains In many parts of Africa, post-harvest losses to spoilage due to inadequate landing, processing and trading sites exceed 30% of the catch. Weak market infrastructure in rural areas means most fish is still marketed as dried and/or smoked products. Investments to s...

'Shifty-eyed' Monkeys Offer Window Into Brain's Social Reflexes

...s and responds to them. 'It's been long known what parts of the human brain are involved in identifying and recognizing other individuals as well as those parts of the brain involved in shifting attention,' said Platt. 'And there have been new magnetic resonanc...

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