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Tag: "helps" at biology news

New Research Shows Artificial Light at Night Stimulates Breast Cancer Growth in Laboratory Mice

...he brain’s production of melatonin, a hormone that helps to regulate a person’s sleeping and waking cycles. The new study shows that melatonin also plays a key role in the development of cancerous tumors. “We know that many tumors are largely dependent on a nutrient called linoleic acid, an essential fatt...

Gene thwarts some pathogens, gives access to others, could save crops

...ustria and North Carolina identified the gene that helps plants recognize pathogens and also triggers a defense against disease. The gene and its defense mechanisms are similar to an immunity pathway found in people and in the laboratory research insect, the fruit fly. As Botrytis cinerea, a pathogen that...

Researchers use mass spectrometry to detect norovirus particles

...e time lapsed prior to registering on the detector helps researchers determine the mass--or weight--of the particles. By targeting characteristic particles, or peptides, belonging to the viral coat protein, the virus can be positively identified by matching the results to entries in genetic databases. In ...

Ancient ants arose 140-168 million years ago

...e time lapsed prior to registering on the detector helps researchers determine the mass--or weight--of the particles. By targeting characteristic particles, or peptides, belonging to the viral coat protein, the virus can be positively identified by matching the results to entries in genetic databases. In ...

More evidence mammals, fruit flies share make-up on function of biological clocks

...uit flies, Cry is a circadian photoreceptor, which helps light reset the biological clock with changing seasons, or in jet lag-style experiments (in which light is manipulated to mimic the experience of traveling over multiple time zones) in the lab. In mammals, however, Cry assists in the 24-hour rhythmic...

Enzyme crystal structure reveals 'unexpected' genome repair functions

...omain of a bacterial DNA repair protein MutS. MutS helps recognize and repair mismatched DNA in E. coli. These two proteins have little sequence similarity. Biochemical assays following this discovery indicate that this domain allows XPB to interact with damaged DNA and enhances its unwinding activity on d...

DNA end caps may lead to cancer treatments, UT Southwestern researchers report

.... They helped develop an anti-telomerase drug that helps slow the spread of lung cancer cells in mice. The drug is being tested in humans to see if it's safe. The researchers say that any anti-telomerase drug would not be used alone to treat cancer. Rather, it would be used in conjunction with more tradi...

Convergent evolution of molecules in electric fish

...vergent evolution of sodium channels in these fish helps neurobiologists identify important parts of these proteins relevant to human health, adds Zakon. "When natural selection is acting to cause changes in a part of a molecule, you know it's functionally important," he says. "Natural selection can start...

Wisconsin scientists grow two new stem cell lines in animal cell-free culture

...Jan. 1, 2006) in the journal Nature Biotechnology, helps move stem cells a small step closer to clinical re...fort to develop the new culture media. "This work helps us clear some of the major hurdles for using these cells therapeutically." "We've been optimizing (...

Computer scientist sorts out confusable drug names

...w how it might become of use, but if this software helps to reduce even just 10 per cent of prescription errors in the U.S. that translates into helping a lot of people, and it's very satisfying to contribute to that." ...

UCR researchers design chip that can improve citrus varieties

..., and reproductive development. "The citrus array helps us quickly examine a certain trait in citrus," sai...or correction to improve the flavor. The chip also helps us address citrus diseases by helping us see what happens in cells when a citrus plant is under atta...

Oxidation defense in mosquitoes benefits malaria parasite

...he malaria vector Anopheles gambiae, where XA also helps the malarial parasite reproduce. So stopping the oxidative defense could stop the parasite as well as make the insect a victim of oxidative stress. Rizzi's group at the University of Piemonte Orientale focuses on the structural characterization of e...

Taking evolution's temperature: Researchers pinpoint the energy it takes to make a species

... and the University of New Mexico at Albuquerque - helps explain why more living species seem to exist near the equator, a scientific observation made even before naturalist Charles Darwin set sail to South America on the H.M.S. Beagle nearly two centuries ago. It may also have a bearing on concepts such ...

Value of services performed by insects tops $57 billion in US

...ntegral part of a complex web of interactions that helps put food on our tables and remove our wastes. Humans - and probably most life on earth - would perish without insects, Vaughan said. Losey and Vaughan's study focused on the economic value of four particular services -wildlife nutrition, pest contro...

USC researchers investigate protein that protects tumors

...the tumor cells die, which means that its function helps the cancer cells survive," says Parkash S. Gill, MD, a professor of medicine in the Keck School and the study's senior author. The scientists used a fluorescent dye attached to the protein's antibody to reveal the protein's location on the tumor ce...

Traditional Chinese medicine for diabetes has scientific backing

...sensitivity of the tissue to insulin ?this in turn helps lower blood sugar levels. In addition, it seems berberine can help reduce body weight". Current medicines for treating type 2 diabetes include metformin and the TZD group of drugs. However, alarge number of patients cannot tolerate metformin and th...

Ritalin packs punch by elevating norepinephrine, suppressing nerve signal transmissions

...d. Their report in the Journal of Neurophysiology helps explain how a stimulant aids people with attention...mation related to whisker movement. Norepinephrine helps transmit sensory information from the periphery to the brain. Suppressed the long latency phase of t...

UF scientists test improved gene therapy method for hereditary heart conditions

... Byrne said. It also has a unique outer shell that helps it break through blood vessel walls so it can be readily taken up by cells requiring repair. The scientists also modified AAV-9 to contain copies of a therapeutic gene that pumps out an enzyme missing in a mouse model for Pompe disease. The ailment...

New pathways for autoimmune treatment identified

...ct in i NKT cells, a type of regulatory cell that helps the immune system fight infections while suppressing errant T cells bent on attacking the body, Medical College of Georgia researchers say. This finding opens new pathways for treating or preventing APS1, or autoimmune polyglandular syndrome type 1,...

Honey helps problem wounds

...ld remedy millennia old is being reinstated: honey helps the treatment of some wounds better than the most ...sant ?an enormous strain on the patient. Yet honey helps here too by reducing the smell. 'Even wounds which consistently refused to heal for years can, in ou...

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