Tag: "too" at biology news

Gene-Altered Mouse May Provide New Insights To Parkinson's Disease, Substance Abuse And Schizophrenia

...ny years that schizophrenics behave as if theyhave too much dopamine in the brain's limbic system, which controls emotionand behavior. Conversely, not enough dopamine contributes to clinical depression.Although therapeutic drugs for schizophrenia block dopamine receptors, theyhave limited effectiveness a...

Duke Researchers Discover Candidate Susceptibility Gene For Autoimmune Disease

...researchershypothesized the animals were producing too much of a potent inflammatoryprotein called tumor necrosis factor alpha (TNFa). To test their idea, the researchers injected the TTP-deficient animalswith an antibody that neutralizes TNFa. In a dramatic and almost completereversal, all signs of dis...

DNA Techniques Allow Scientists To Become Pollution Detectives.

... fecalcoliform counts to rise. When the counts get too high, the state,fearing illness from consumption of raw oysters, closes the bayto oyster harvesting. "There's always been a question as to whether the bacteria wasnatural or manmade," Edmiston said. "There was never a way todifferentiate that before ...

Suicidal Tendencies

...t cancer and autoimmune diseases:cells that wander too far from their source of molecular signals naturallyself-destruct. When the self-destruction mechanism is disrupted, though,cancerous tumors made up of rapidly reproducing cells can result....

Honeybees In The Wild Nearly Gone In North America

...s of the tracheal mites and varroamites, it became too much of a challenge for bee populations tomaintain themselves." Small and medium-sized fruit and vegetable growers and backyardgardeners will likely be hardest hit by the wild honeybee blight,Tew said. "The decimation of honeybees in the wild means t...

Nitric Oxide May Hold Key To First Treatment For Deadly Form Of Malaria, Duke Scientists Report

...s a bacterium's first line of defense. If too much SNO gets in, it disables the bacteria by dama...oth oxygen and NO are vital to life processes, but too much of eithercan damage cells. To keep the amount of oxygen and NO in balance, cellshave built-in s...

Cooking And Salad Oils Could Lubricate Cars, Boats, Machines

...ead perception that vegetable oils oxidize too rapidly to be used in engines. Duda said there has been continuing interest in vegetable oil-based lubricants for many years because they are more environmentally friendly. They can be produced and disposed of with less impac...

Low-Protein Diet May Reverse Kidney Disease

...n benefits some patients -- sufferers already lose too much protein in their urine, yet restricting dietary protein may help many sufferers, says Mackenzie Walser, M.D., the study's lead author and a professor of pharmacology, molecular sciences and medicine. The study, which was supported in part by the...

Nitric Oxide Found To Control Cells By Turning On Genes; Suggests New Role In Health And Disease

...s a bacterium's first line of defense. If too much SNO gets in, it disables the bacteria by dama...oth oxygen and NO are vital to life processes, but too much of eithercan damage cells. To keep the amount of oxygen and NO in balance, cellshave built-in s...

Duke Primate Center Sets October Expedition To Find 'Juliet'

...from what the PrimateCenter scientists believe was too much calcium in her diet, an unexpectedand atypical reaction for a lemur. Romeo, on the other hand, survived andprospered, because as an infant his body required more calcium, and he didnot suffer from hypercalcemia. Calcium-rich foods are now exclud...

New Software Provides Quick Analysis of ion-Channel Activity

...t researchers will be able to try things that were too painfully slow to even try before, said Frederick ...rations cause the ion channels either to stay open too long or not long enough, resulting in clinical disorders where the muscles are either too weak or to...

UC Berkeley, U.S.G.S. Scientists Discover Microscopic Invader Of San Francisco Bay, The First Known Marine Microbe Invader Of U.S. Waters

...e invading the world's ports and estuaries. It is too early to tell what the impact of this introduction will be on the ecosystem, Sloan says, but at the population levels currently found, it is likely to have a large impact on the native species of foraminifer. The introduction of exotic species to th...

A Sensor, A Switch, A Zipper: Protein Engineers Design Potential Tool

...The present design binds compounds such as benzene too weakly to beat your nose as a detection system," said Dr. Alber. Manipulation of coiled coils may also allow scientists to attach specific proteins together. In nature, coiled coils "zip" together two or more...

Learning From Birds And Bees: Engineers Study Insects For Ideas On Tiny "Micro Air Vehicles"

...whirring rotor blades or exposed propellers may be too dangerous to use. Batteries or other electrical sources offer another challenge, as doguidance and navigation systems -- and the tiny payloads that willtransmit television images or sniff the air for contaminants. Recentadvances in micro electro-me...

High Levels of Vitamin C Prove Toxic to HIV

...nt more glucose and vitamin C. But if they take in too much vitamin C, they die. When the researchers exposed both HIV-infected and healthy immune cells to varying levels of vitamin C, they observed a range of effects. At levels of vitamin C comparable to those normally found in the body, the nutrient ei...

Purdue Researchers Prod Plants To Clean Up Pollution

... of calcium for normal growth and development, but too much can kill them. "Most plants have cells that serve as calcium dumps," Webb says. "Plants have a tremendous ability to store calcium oxalate." Some plants contain almost half as much calcium by weight as does an average human body, and all without...

NIH Team Discovers Endocrine Tumor Gene

...ltiple tumors. Another consequence of MEN1 may be too much gastrin in blood, which causes severe stomach ulcers that are sometimes fatal. Some islet cell tumors may become malignant and result in a lethal form of pancreatic cancer. The discovery of the gene emanated from the unique collaboration of fo...

Emory Researchers Advance Gene Therapy Studies For Metastatic Melanoma Treatment

...ally by some human melanoma tumors, but in amounts too small to effectively eliminate tumors. "In mouse studies, we tried delivering GM-CSF in large doses, directly to the tumor," explains Dr. Ansel. "We grew melanoma tumor cells in culture and added the GM-CSF gene. Then we reinjected the combination...

Teens Shop "Healthy", But Trust Label Claims Too Much

...ermarket but they, like their parents, still rely too heavily on "lite," "fat-free," "low cholesterol" front-of-the-label nutrition claims, a Penn State study has found. Christine McCullum a Penn State graduate and her adviser Dr. Cheryl L. Achterberg, professor of nutrition and director of the Pe...

New understanding of crab populations may not bring fishermen's delight

...elp crabs rebuild populations when the numbers are too lowor reduce populations when the numbers are too high. Then the researchers threw in random external forces, also called "noise,"which could be weat...

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(Date:4/17/2014)... research team led by Cesar A. Arias, M.D., Ph.D., ... Houston (UTHealth) has identified a new superbug that caused ... appeared in the April 17 issue of The ... superbug is part of a class of highly-resistant bacteria ... which is a major cause of hospital and community-associated ...
(Date:4/17/2014)... improves general blood flow and alleviates muscle soreness ... at the University of Illinois at Chicago. , ... in the Archives of Physical Medicine and ... function in people who had not exercised, suggesting ... their level of physical activity. , Improved circulation ...
(Date:4/17/2014)... patients adrenaline after they suffer a cardiac arrest outside ... surviving long-term, according to new research conducted at St. ... have a cardiac arrest get adrenaline, which has been ... said Dr. Steve Lin, an emergency physician and trauma ... medical treatment, long-term survival rates of patients who suffer ...
(Date:4/16/2014)... Consider the marvel of the embryo. It begins as ... as they multiply to become the cells of our lungs, ... body. , Now, in a feat of reverse tissue engineering, ... coding that allows embryonic cells to proliferate and transform into ...
(Date:4/16/2014)... According to a new study, endoscopists, recommendations for ... to two small polyps are consistent with guideline recommendations ... an appropriate target for quality indicators. This is the ... guidelines for timing of repeat colonoscopy after one to ...
Breaking Medicine News(10 mins):Health News:New MRSA superbug emerges in Brazil 2Health News:Massage therapy improves circulation, eases muscle soreness 2Health News:Adrenaline does little to increase patient's survival after cardiac arrest 2Health News:Stanford scientists develop 'playbook' for reverse engineering tissue 2Health News:Stanford scientists develop 'playbook' for reverse engineering tissue 3Health News:Surveillance colonoscopy recommendations for average-risk patients with 1 to 2 small polyps consistent with guidelines 2Health News:Surveillance colonoscopy recommendations for average-risk patients with 1 to 2 small polyps consistent with guidelines 3
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