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Tag: "weakened" at biology news

Implanted Devices Detect High-Risk Heart Failure Patients

...on, which optimizes the contractability of already weakened heart muscle. Second, the defibrillator "shocks" the heart back into normal rhythm whenever the heart beats irregularly. In addition to maintaining the heart, the devices also collect heartbeat-by-heartbeat data that can be downloaded from the devic...

Protein offers way to stop microscopic parasites in their tracks

...fe-threatening infection when the immune system is weakened by illnesses such as HIV or is suppressed to facilitate an organ transplant. "Toxoplasma is like a time bomb that can go off and cause serious trouble when the immune system wanes or is compromised," explains L. David Sibley, Ph.D., professor of mol...

Marburg haemorrhagic fever in Angola update

...l and Mozambique. Conditions in Angola ?a country weakened by almost three decades of civil unrest ?have presented additional challenges. Supplies of water and electricity are intermittent, also in health care facilities. Weakened infrastructures, including those for communications and transportation, are an...

Discovery may lead to better Candidiasis drug

...ongue and throat. It affects primarily people with weakened immune systems caused by antibiotics, chemotherapy or by diseases such as AIDS. Thrush also affects many denture wearers. The condition can be treated with antifungal medication in otherwise healthy people, said Edgerton, but it is difficult to trea...

Live vaccines more effective against horse herpes virus

...minary research indicates that vaccines containing weakened live viruses, called modified live vaccines (MLV),...nces in which a previous MLV that was incompletely weakened caused neurological disease symptoms after it was administered. The more widely used type of vaccine...

Turning viruses into allies against cancer

...nd Destroys Liver Cancer Cells: Abstract LB-297 A weakened measles virus, modified with a protein that normally takes up iodine in the thyroid gland, is being studied to treat human liver cancer cells grafted in an animal model. Scientists at the Mayo Clinic in Rochester, Minn., reported that the engineered...

NIAID begins clinical trial of West Nile virus vaccine

...threat, especially to older adults and people with weakened immune systems," says Anthony S. Fauci, M.D., director of the NIAID. WNV, initially isolated in Uganda in 1937, made its first U.S. appearance in New York City in 1999. The virus usually is transmitted to humans through the bite of a mosquito that h...

New strategies to reduce hospital-aquired infections

...t health threat to patients, especially those with weakened immune systems. By all accounts the prevalence of infections caused by some of the most potentially lethal waterborne microbes, such as legionella and pseudomonas, are underestimated." He explained that waterborne microbes- -bacteria, viruses, fungi...

Distributed Basic Local Alignment Search Toolkit (W.ND-BLAST)

...t health threat to patients, especially those with weakened immune systems. By all accounts the prevalence of infections caused by some of the most potentially lethal waterborne microbes, such as legionella and pseudomonas, are underestimated." He explained that waterborne microbes- -bacteria, viruses, fungi...

Cancer drug slows poxvirus in mice

...e. The classic smallpox vaccine is made from live, weakened vaccinia virus and is not recommended for people with compromised immunity, except in emergency situations where they may have been exposed to smallpox virus. "This study helps illuminate the cellular machinery used by poxviruses to exit infected ce...

Immune system's distress signal tells bacteria when to strike back

...most vulnerable and to launch an attack before the weakened host can muster its defenses. In the 29 July 2005...s lethal process. The transformation starts when a weakened host tries to boost its defenses against any possible invasion. The host's T cells release chemical ...

New complete muscle grown in the lab

... trauma such as burns, or build up muscle that has weakened or wasted away in diseases like AIDS. Until now, most scientists have not attempted to provide engineered tissue with its own blood supply. Instead, they have implanted the new tissue into the body and waited for the body itself to infiltrate the ti...

Fragment of yellow fever virus may hold key to safer vaccine

... the potential side effects from variations of the weakened virus strain now grown in fertilized chicken eggs. ...

Can't serve an ace? Could be muscle fatigue

... Department of Physiology, found when muscles were weakened from overuse or fatigue, limb control was affected, particularly if the person couldn't see their limbs. The study, which has been published in the Journal of Physiology, showed muscles needed to work harder to compensate for fatigue, which led to u...

Biased reporting found in cancer prognostic studies

...een TP53 status and head and neck cancer mortality weakened as they expanded their analyses from the 18 published and indexed studies alone to include the 13 studies with published data only. The association vanished after they added in the unpublished data from 11 studies. Additionally, 72% of 18 published m...

Secrets to antibody's success against West Nile Virus surprise scientists

...ild or symptom-free, but infections in people with weakened immune systems and those over 50 sometimes lead to serious complications or death. Like West Nile, dengue virus is a flavivirus spread by mosquito bites, but only in tropical regions of the world. The dengue virus is estimated by Centers for Diseas...

Hide and seek: Researchers discover a new way for infectious bacteria to enter cells

...or gastrointestinal distress. For individuals with weakened immune systems, listeriosis can be fatal, and infections during pregnancy can lead to miscarriage, stillbirth, premature delivery, or infection of the newborn. The research was conducted by Pascale Cossart, a Howard Hughes Medical Institute interna...

Gene discovery sheds light on causes of rare disease, cancer

...or gastrointestinal distress. For individuals with weakened immune systems, listeriosis can be fatal, and infections during pregnancy can lead to miscarriage, stillbirth, premature delivery, or infection of the newborn. The research was conducted by Pascale Cossart, a Howard Hughes Medical Institute interna...

Elderly mice yield clues to the process of growing old

...earing and vision impairment, loss of muscle mass, weakened bones and fewer circulating red blood cells. Mitochondria are structures within cells that provide energy for cells to move, divide, contract and secrete products vital for the health of organisms. "We think that the key to what is happening in agin...

Envisat and ERS-2 reveal hidden side of Hurricane Rita

...t continues west through the Gulf of Mexico it has weakened to a still-dangerous Category Four. Rita is expected to make landfall on the Gulf coast during the morning of 24 September. ERS-2 joins in Rita observations The same day Envisat acquired its ASAR image of Rita, its sister spacecraft ERS-2 also ...

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