Health News Archive - November 17, 2005
HAVANA (Reuters) - Cuba said on Thursday it was considering researching a vaccine against bird flu, warning that antiviral drugs available today are barely enough to protect "the rich people in rich nations" from a pandemic.
Malaria infections boost production of a substance that might significantly increase HIV replication in the placenta. This interaction could explain why mother-to-child transmission (MTCT) of HIV in YaoundÃ© increases following a rainy season, according to new findings presented at this week's Fourth Multilateral Initiative on Malaria (MIM) Pan-African Malaria Conference.
They're but a tiny speck, existing in a variety of forms: particles, tubes, shells, even a soccerball-like shape. They also share a common prefix: "nano," connoting their size, a billionth of a meter or roughly 25-millionth of an inch.
Compared to patients receiving care from primary care physicians, asthma patients who are under the care of an allergist report fewer asthma control problems and less sever asthma symptoms, according to new research in the December 2005 Journal of Allergy & Clinical Immunology (JACI). The JACI is the peer-reviewed, scientific journal of the American Academy of Allergy, Asthma & Immunology (AAAAI).
A large-scale international study has demonstrated the usefulness of a blood test to confirm or exclude the diagnosis of acute heart failure in emergency room patients and shows that the test also can identify patients at a higher risk for death. The report from investigators in the U.S., the Netherlands, Spain and New Zealand also clarifies the importance of age-specific levels of a protein called NT-proBNP that definitively diagnose heart failure. The report will appear in the European Heart Journal and is receiving early online release.
Scientists led by a University of Cincinnati (UC) kidney expert have found that a naturally occurring protein that normally fights cancer cells can also cause severe kidney failure when normal blood flow is disrupted.
Researchers at The University of Queensland's (UQ) Centre for Immunology and Cancer Research (CICR), based at the Princess Alexandra Hospital, have pioneered a new approach for the treatment of cervical cancer.
The immune system is highly complex. The cast of characters alone required to marshal an immune response to a foreign invader can number in the millions as the body's soldiers, T cells, are called into action. What triggers this complex response begins when T cells and dendritic cells, another type of immune cell, form a kind of molecular embrace, or immunological synapse, to relay information about intruders.
Northwestern University researchers have demonstrated how the microenvironments of two human embryonic stem cell (hESC) lines (federally approved) induced metastatic melanoma cells to revert to a normal, skin cell-like type with the ability to form colonies similar to hESCs. The researchers also showed that these melanoma cells were less invasive following culture on the microenvironments of hESCs.
Researchers at the University of Washington have found a genetic pathway linking nutrient response and the aging process, they report in the Nov. 18 issue of the journal Science. Scientists have long known that dramatically reducing food intake boosts the lifespan of model organisms such as mice, but the new results point to a possible mechanism through which drastic calorie restriction affects aging.
- The act of sweetening by admixture of some saccharine substance.