transmission 2 9

Tag: "transmission" at biology news

Researchers make headway in mystery of migraines

...rom memory to basic movement--is the result of the transmission of electrical impulses along nerve cells," says Dr. Blostein. "This is a basic process by which our brain cells communicate." By expelling sodium from the cell, and drawing potassium from outside, the sodium pump maintains a gradient of potassium, wh...

Discovery could be key to bioterrorism defense

...ential for amplification in intermediate hosts and transmission greater. Ephrin-B2 is highly conserved in animals,...many of these recent cases involved human-to-human transmission of Nipah, which originates in bats. Ephrin-B2 is found on cells in the central nervous system, as w...

Discovery of New Dopamine Action May Yield Alternative Psychiatric Drugs

...nsitization but also participates in slow synaptic transmission here by acting as a scaffold for signaling molecules in response to dopamine receptor activation," Caron said. "The observations also provide an alternative pathway by which dopamine receptor activation leads to the expression of dopamine-associated...

Antiretroviral Therapy May Prevent HIV Transmission From Breastfeeding Mothers To Infants

...therapy may reduce the risk of mother-to-child HIV transmission through breastfeeding, findings that could have si...al therapy for an HIV-infected mother or her baby, transmission of HIV-1 through breast milk occurs in approximately 9 to 16 percent of breastfed infants. In the de...

Aircraft Cabin Ventilation Influences The Transmission Of Diseases In-flight

...lleagues reviewed data from studies looking at the transmission of diseases during commercial air travel. They fou...fection risk by half. Investigations of in-flight transmission of tuberculosis suggest that the risk of disease transmission to other symptom-free passengers withi...

Ebola virus: from wildlife to dogs

...been infected and can therefore be a new source of transmission to humans. Ebola virus infection in humans provoke...he virus's natural cycle is not restricted just to transmission from the reservoir to the non-human primate and then to humans. It is quite possible that several re...

A probe, not an echo

...ysis with sub-millimeter ultrasonic transducers in transmission mode, rather than the commonly used echo mode, to create the 3-D image. He explains that in traditional hand-held ultrasound systems, sound waves are broadcast into the tissue, and the echoes produce an image of the reflecting interfaces ?that is, t...

Rabies spread speeds up

...utbreaks, the authors had already shown that local transmission was significantly reduced when townships were sepa...d the likely effect of Ohio's five major rivers on transmission from local points along the Pennsylvania or West Virginia border but also adjusted their model to es...

WHO suspends Marburg work, appeals for new funds

...ng operations in the field. To reduce the risk of transmission in the community, priority activities include inte...d villages of Uige Province. To reduce the risk of transmission in health care facilities, priorities include the provision of personal protective equipment for fro...

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

...d effective solution to prevent waterborne microbe transmission to patients. He reviewed the results of studies conducted with Pall-AquasafeTM filters, which are specifically designed to prevent patient exposure to waterborne microbes. The filters provide an absolute barrier between the microorganisms and patient...

New strategies to reduce hospital-aquired infections

...d effective solution to prevent waterborne microbe transmission to patients. He reviewed the results of studies conducted with Pall-AquasafeTM filters, which are specifically designed to prevent patient exposure to waterborne microbes. The filters provide an absolute barrier between the microorganisms and patient...

Researchers develop assay that could be applied to drug screening

...ulation, nutrient uptake and maintenance of signal transmission across nerve cell junctions. Mis-regulation of CME has been implicated in some types of cancer and neuro-degenerative disease and the protein machinery of CME has been co-opted by several viruses, including rabies, as a means of entry into healthy ce...

Friendly bacteria in humans may protect against HIV

.... Inoculating the major mucosal surfaces where HIV transmission occurs with the HIV-capturing lactobacilli may provide a safe and cost-efficient method for preventing the spread of HIV, says Tao. "This method can protect infants against HIV in breast milk and women against HIV upon sexual contact unobtrusively a...

Edible bivalves as a source of human pathogens: signals between vibrios and the bivalve host.

...mussels and oysters are important vehicles for the transmission of enteric diseases when consumed raw or undercooked. Vibrio species, including human pathogens, are particularly abundant in bivalve tissues, where they can persist even after cleaning procedures, thus representing a potential risk for human health....

Maine Researchers Find Exceptions to Old Rules of Genetic Inheritance

.... Until now, most geneticists suspected that both transmission ratio distortion and sterility were due to the sam... The hypothesis was logical since the phenomena of transmission ratio distortion and sterility always mapped to the same regions within the t haplotype. To test th...

First technology to remove prions that cause vCJD from blood launched

...ave been two probable cases of human-to-human vCJD transmission via blood transfusion. Since there are no clinical...nors. The most direct action to reduce the risk of transmission may come from new methods to provide prion protection." Prion Protection The Leukotrap Affinity Pri...

Youth With HIV Take More Risks After New Meds Introduced

...lieve that sexual behaviors that could lead to the transmission of HIV, like unprotected sex, are less risky" if viral levels are low, she adds. Although some studies suggest a shift toward risky behavior in adults in the post-HAART era, (see http://www.cfah.org/hbns/newsrelease/safe_sex11-01-01.cfm), Lightfoot ...

Marburg haemorrhagic fever in Angola update

...ive clothing for staff work to interrupt chains of transmission and thus seal off opportunities for further spread. Such straightforward measures are complicated by the distinct features of this disease. The sudden onset, dramatic symptoms, and rapid deterioration of patients, and the absence of a vaccine and ef...

HIV-1 spread through six transmission lines in the UK

...six independent virus introductions and subsequent transmission chains. The findings, published in the latest issu...ype B spread through the UK via at least six large transmission chains of men having sex with men, suggesting separate introductions of subtype B strains into the U...

New component of the 'brakes' on nerve regeneration found

...es neurons and acts as an insulator and aid to the transmission of nerve impulses. Researchers knew that CNS neurons had receptors on their surface that accepted the inhibitory molecules--like a key fitting a lock--and switched-on inhibitory signaling within the neuron. They had also shown that a protein called ...

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