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Tag: "weeks" at biology news

Suicide risk does not increase when adults start using antidepressants, study finds

...pts or death by suicide generally decreases in the weeks after patients start taking antidepressant medication, according to a new study led by Group Health Cooperative researchers and published in the January issue of The American Journal of Psychiatry. The study also found that the risk of suicidal behav...

Proteins stop blood-vessel and tumor growth in mice

...ed to produce either fibulin 3 or fibulin 5. Three weeks after the cells were implanted, developing tumors that produced the fibulins were approximately 24 percent to 45 percent smaller than the control tumors. "We are thrilled that the fibulins continue to show promise as we move into animal models," sai...

Possible brain hormone may unlock mystery of hibernation

...herapy might effectively preserve donor organs for weeks or months. Hibernation has also been found to protect animals from a wide range of potential threats, from muscle disuse to cancer, the study authors said. Therefore, hibernation therapy might confer protective effects in other clinical arenas as we...

New 'self-exploding' microcapsules could take sting out of drug delivery

...y release drugs and vaccines inside the human body weeks or even months after injection. The study, by researchers at Ghent University and the Universit? Catholique de Louvain, is scheduled to appear in the Jan. 9, 2006, print issue of the American Chemical Society's journal Biomacromolecules . Unlike s...

Stable polymer nanotubes may have a biotech future

... nanotubes maintain their shape even after several weeks of storage, and can be removed from the liquid solution and placed on a dry surface or in a different container. The optical tweezers can be used to custom build nanotube network structures. The work was supported in part by the Office of Naval Resea...

Stem cell transplants improve recovery in animal models for stroke, cerebral palsy

...r percent of donated cells survived and within two weeks matured into neurons in the young, more pliable brains, Dr. Borlongan said. Also, close donor matching seemed unnecessary. Unmatched transplants, from the same species, and gentically identical transplants yielded essentially equal results.Athersys,...

Man's best friend: Study shows lonely seniors prefer playtime with pooch over human interaction

...gnificant decrease in loneliness after five to six weeks of visits. The main way pets reduce loneliness in nursing homes is simply by being with people, not by enhancing socialization between people ?for instance, giving nursing home residents something to talk about or an experience to share, Banks said....

All placebos not created alike

...l trial. The acupuncture trial extended four more weeks (the length believed needed to see improvement), and the pill trial lasted six more weeks (the length needed to have the real drug in the bloodstream). In the second phase of the study, pat...

New vaccine for condition that kills 500,000 children a year

...hree doses of vaccine or placebo, given four to 10 weeks apart. Because of the bowel obstruction associated...s safe. Overall, 68,038 infants between six and 12 weeks participated, 34,035 in the vaccine group and 34,003 in the placebo group. All were monitored for se...

'Dead zone' summer killed billions of ocean state mussels

...me of Narragansett Bay in just 20 days. But within weeks of the die-off, that filtering capacity dropped by 75 percent. Altieri said this is an important, and troubling, finding for water quality and sea life in the bay. Hypoxia can start when fertilizer or sewage spills into coastal waters, carrying nit...

Dogs keep dying: Many owners unaware of toxic dog food

...stools. "Since dogs can take several days to three weeks to exhibit serious signs of illness, all animals that consumed recalled lots of food should be examined by a veterinarian as early as possible," Center said. "Physical exams and blood tests are necessary to differentiate dogs that have been poisoned ...

Relationship of brain and skull more than just packaging

... growth are so rapid that if the images were taken weeks apart, they would not be an exact fit." T scans record a three-dimensional image of the skull while MRIs provide a three-dimensional brain image. The researchers caution that the number of infants studied in this way is small at this point, but the...

Strawberries by design

...te leaves, are able to grow. When collected at 6-7 weeks after seed germination, these leaves are highly amenable to gene transfer using A. tumefaciens. Since they glow green under fluorescent light due to the presence of Green Fluorescent Protein (GFP), transformed strawberry plants may be easily identifi...

Plant-derived vaccines safeguard against deadly plague

...we purify the antigens in an additional one to two weeks to create the vaccine." The approach also eliminates the typical year-long lag time necessary to establish and characterize genetically modified, or transgenic plants. The beauty of system is its potential versatility that can be adapted to figh...

How can we protect patients with weakened immune systems from influenza?

...nt in time, but they may benefit just two or three weeks later," said Dr. Sullivan. The research teams will measure T cell and B cell counts in the targeted patients. Both types of cells play important roles in the immune system. T cells that recognize and fight influenza may help predict whether a patie...

Mice lacking social memory molecule take bullying in stride

...different dominant mouse daily for 10 days. Even 4 weeks later, the "socially defeated" animals vigorously ... while 17 decreased. This pattern persisted even 4 weeks later, with 127 genes still increased and 9 decreased, paralleling the changes seen in social behavi...

High resolution 'snapshots' detail dynamics of a cocaine antibody

...ss, producing improvements in the immune system in weeks or months that previously took billions of years. "The structural insights into antibody catalysis that we have shown with 7A1 Fab' are critical for any future improvement of effective biocatalysts," Zhu said. "One of the main goals of our lab has ...

Flu not the only germ threat this time of year

...ines, but they still knock people down for days or weeks and cause thousands of deaths each winter. Metapneumovirus. Rhinoviruses. Coronaviruses. Parainfluenza. Respiratory syncytial virus (RSV). Pronouncing the names of the microbes can be almost as difficult as bearing the illnesses themselves. They're ...

Patients now surviving once-fatal immune disease

...nous infusions of gamma globulin every two to four weeks and 16 (39 percent) were taking chronic (long-term) antibiotics in order to prevent infections, the St. Jude team reported. In addition, 17 patients (41 percent) had not been hospitalized for infection since diagnosis and 28 (68 percent) had not be...

Researchers test new way to quit smoking

...n using replacement nicotine patches or gum in the weeks before they quit cigarettes. That's a theory a te...ipants will be offered nicotine patches or gum two weeks before they attempt to quit; the other half will begin using the patches or gum on the day that they...

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