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Tag: "substance" at biology news

Attacks of King George III's madness linked to key metabolism molecule

...ay have been exposed to arsenic contamination of a substance his doctors gave him as treatment. PGC-1 alpha is a "transcriptional coactivator" that acts as an on-off switch for a number of genes involved in manufacture of glucose in the liver and in the "heating system" of brown fat cells that help prevent da...

Purdue scientists may have found key to halting spinal cord damage

...urdue University researchers may have isolated the substance most responsible for the tissue damage that follow... I have already had our hands in developing PEG, a substance that coats damaged spinal cells so that their membranes can heal and also oscillating field stimulat...

Scalpel-free surgery could reduce risk of HIV and hepatitis exposure for health care workers

...tend toward low socioeconomic status and increased substance use, most university hospitals in the United States are located in urban areas and serve a similar patient population, added Makary. Other authors on the report are Eric S. Weiss, Theresa Wang, Dora Syin, Peter Pronovost, David Chang and Edward Corn...

Newly discovered genetic disease sheds light on body's water balance

... plasmid that responds to cAMP. Luciferase is the substance that lights up in fireflies. Feldman showed that wild-type cells contain low levels of light from luciferase -- and thus low levels of cAMP. In Feldman's experiments, cells with the R137C mutation proved to have four times as much cAMP as wild-type ...

Scientists reveal how disease bacterium survives inside immune system cell

...s that are toxic to cells, including a bleach-like substance called hypochlorous acid. Once the bacteria are killed, the involved neutrophils self-destruct in a process known as apoptosis. Recent evidence suggests that this process is vital to resolving human infections. A. phagocytophilum is unusual in that ...

Confirmation of human protein interaction data by human expression data

...mersed 3-day-old fish in a breathable, Jell-O-like substance that kept the fish alive but immobile. The researchers could then focus video cameras on the fish’s developing brain to watch how the branches of individual neurons grew and shrank over time. It turns out that determining which of the branches will ...

Speak up: Louder neurons form more connections

...mersed 3-day-old fish in a breathable, Jell-O-like substance that kept the fish alive but immobile. The researchers could then focus video cameras on the fish’s developing brain to watch how the branches of individual neurons grew and shrank over time. It turns out that determining which of the branches will ...

Mechanism for the captation of nutrients in plants- unknown to date

... have shown that, in the presence of saccharose (a substance produced in leaves to be subsequently distributed ...dreds of substances enter vegetable cells and each substance has its specific transporter, or even if one transporter can recognise 3 or 4 different substances, ...

Combination therapy leads to partial recovery from spinal cord injury in rats

...stration to date that producing a nerve-insulating substance called myelin can lead to functional improvements in animals with spinal cord injury. Previous studies have shown that the loss of myelin around nerve fibers contributes to the impaired function after a spinal cord injury. However, until now it has n...

How exactly does the brain control breathing?

... retrofacial region) and loaded with a transmitter substance called glutamate. Their close proximity to the ven...he blood. His cells do not contain glutamate but a substance called serotonin. Experimental Physiology asked each author to stake out his claim and provide rebu...

New miniaturised chip dramatically reduces time taken for DNA analysis

...with electrochemical sensors. These can identify a substance by chemically interacting with it and converting this interaction into an electrical current that they measure. To detect DNA, the new miniaturised electrochemical genosensors have a probe containing DNA fragments that complement the DNA they aim to...

Sponges as drugs

...to be a profitable option if the quantities of the substance needed are small or if the growth can be optimised in combination with other reared organisms. Nicole de Voogd's research was funded by NWO. ...

Atmosphere may cleanse itself better than previously thought

...e the minute quantities of radiation absorbed by a substance called methyl hydroperoxide when it breaks up in sunlight and forms OH radicals. Methyl hydroperoxide is one of the substances that can absorb light in the lower UV spectrum, and the team theorizes that the sensitive laser technique, called action sp...

While on trail of dioxin, scientists pinpoint cancer target of green tea

...chew on willow bark to receive the benefits of the substance salicin ?they simply take an aspirin –the current research opens the door to extending the health benefits first discovered in green tea to people who never touch the beverage. Isolating the chemicals that protect against cancer would also sidestep q...

Embryonic Stem Cells Treated With Growth Factor Reverse Hemophilia In Mice: UNC Researchers

...). The genetically altered mice lack the clotting substance factor IX, which in humans results in the hereditary bleeding disorder known as hemophilia B. This disease, much less common than hemophilia A, affects roughly one of every 35,000 people, primarily males. Although embryonic stem, or ES, cells can di...

Potential Drug Target For Treating Cocaine Abuse Found

A substance similar to a drug used in the treatment of Parkins...ts of experiments showing that mice treated with a substance similar to the drug benztropine did not show any of the typical hyperactive behavior when later inje...

Defenseless plants arm themselves with metals

...Environmental Protection Agency regional hazardous substance research center. Salt collaborated in this research with John Freeman, a former graduate student now at the University of Colorado, Fort Collins. Graduate students Daniel Garcia and Amber Hopf and postdoctoral scientist Donggium Kim at Purdue's Cent...

Revolutionary nanotechnology illuminates brain cells at work

...end of the molecule making a "biosensor." When the substance of interest binds to the sensor, the sensor backbone becomes reoriented, and the reorientation can be detected. Since light is a vibration, the same response occurs with two fluorescent dyes that have overlapping, but slightly different colors–in thi...

Scientists Propose Sweeping Changes to Naming of Bird Neurosystems to Acknowledge Their True Brainpower

...ugs with a recognized medical use. As a controlled substance in Schedule II of the Controlled Substances Act (CSA), Fentanyl also comes under the jurisdiction of the Drug Enforcement Administration (DEA), which administers the CSA. Schedule II drugs are subject to manufacturing quotas set by DEA with input on ...

FDA Clears the Way for Generic Versions of Transdermal Patches to Treat Chronic Pain

...ugs with a recognized medical use. As a controlled substance in Schedule II of the Controlled Substances Act (CSA), Fentanyl also comes under the jurisdiction of the Drug Enforcement Administration (DEA), which administers the CSA. Schedule II drugs are subject to manufacturing quotas set by DEA with input on ...

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