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Tag: "person" at biology news

St. Jude test of bird flu vaccine proves successful

...at it adapts to humans and can readily spread from person to person, Webby said. Flu experts and public health officials fear that such an H5N1 variant would trigger a human pandemic (worldwide epidemic). Webby is scheduled to present the findings of this study at the U.S. Public Health Service Professiona...

Gut reaction: Researchers define the colon's genome

...these microbial communities for better health in a person or population? ...

Air travel and pandemic flu

...her viruses, the flu virus is transmitted from one person to another very quickly and affects many people. Once a major outbreak was under way, banning flights from affected cities would be effective at significantly delaying worldwide spread only if almost all travel between cities could be stopped almost ...

Test reveals effectiveness of potential Huntington's disease drugs

...nce and loss of mental ability. The offspring of a person with Huntington's have a 50 percent chance of inheriting it. More than 250,000 people in the United States have the disorder or are at risk for it. There is no cure, but several drugs are used or are being tested to relieve symptoms or slow Hunti...

AIDS study challenges conventional treatment guidelines for HIV patients

... load explains only about 5% of the variation from person to person in the rate of CD4 cell loss. Thus, CD4 depletion cannot be viewed as a simple consequence of the am...

Increase in carbon dioxide emissions accelerating

...urrent growth rate in emissions, its emissions per person are still below the global average and its accumulated contribution since the start of the industrial revolution around 1800 is only five per cent of the global total. This compares to the US and Europe which have each contributed more than 25 per ce...

What animals can tell us about hemorrhage, organ transplants and aging

...spended animation. Keeping their cool When a person suffers a stroke, heart attack or severe hypothermia, it is not the loss of blood flow (ischemia) that causes the greatest damage to the organs and tissues, explained Andrews. Instead, the greatest damage occurs when the blood flow is restored (reper...

Viral marker of human migration suspect

...ildren. Infection is usually asymptomatic unless a person has a weak immune system, in which case the virus can cause neurological disease. There are more than 14 subtypes of the virus, each primarily associated with different human populations such as African, Japanese, South Asian, and European. Popula...

When nerve cells can't make contact

...probability that the identical twin of an autistic person will also be autistic lies between 80 and 95 percent. In 2003, French geneticist Thomas Bourgeron showed in an investigation of families with several autistic children that mutations in the two genes NLGN3 and NLGN4X had lead to a complete loss of ...

H9N2 avian flu vaccine paired with adjuvant provokes strong human immune response at low doses

... were to acquire the ability to spread easily from person to person, an influenza pandemic could result, hea...s, which help ward off infection if the vaccinated person later encounters the flu virus. In general, the higher the level of antibodies made in response to ...

'Mindless autopilot' drives people to underestimate food decisions

... "each of these small decisions is a point where a person can be unknowingly influenced by environmental cue...t next to the slowest eater at the table: Use that person as a benchmark as to how slow you should eat. Always be the last one to start eating, and set your f...

Bird flu vaccine additive may stretch supply

...e study. "What vaccines do is cause the vaccinated person to produce antibodies in their bloodstream. The higher the antibody levels, in general, the more likely people are to be protected from getting ill or from getting infected at all. "What we found was that when the adjuvant material was included in...

New biologic treatment for tennis elbow may replace surgery for chronic sufferers

A person suffering from tennis elbow may not have to look a...sing a visual analog scale (a continuum on which a person rates the severity of his/her pain: 0 = no pain; 100 = maximum pain). They all had completed a cou...

Researchers discover new gene responsible for brittle bone disease

...g went wrong for the first time in the gene of the person developing it, and not inherited from parents. The newly discovered gene however is a recessive trait, signifying that the disease can be passed down generation to generation, with recessive forms accounting for recurrence. When each parent has o...

High levels of blindness in southern Sudan following years of war

...ed by trachoma. Trachoma can be passed from one person to another through contact with hands and clothes, and by flies. The disease develops gradually—while children are most susceptible to infection, they may not note its effects until adulthood, when scarring from repeated infections causes the eyelash...

Malaria vaccine prompts victims' immune system to eliminate parasite from mosquitoes

... only in mice, would prompt the immune system of a person who receives it to eliminate the parasite from the...would not prevent or limit malarial disease in the person who received it. An article describing this work was published on the Web site of Proceedings of t...

PNAS study reveals why organs fail following massive trauma

...o generate a long list of genes that change when a person undergoes massive trauma. They then ran that list through a database of genetic information to see which of the genes changed by trauma were listed in the literature as having a role in T cell function. What emerged was a map of the likely functions ...

Pleasure and pain: Study shows brain's 'pleasure chemical' is involved in response to pain too

...ignals between brain cells in a way that rewards a person or animal for one activity or another. More recent...reas of the basal ganglia. For example, the more a person rated the pain as causing emotional distress and fear, the more dopamine was released in the area kn...

MIT designs portable 'lab on a chip'

... If emergency personnel knew immediately whether a person had suffered a heart attack or a stroke, they could start the appropriate treatment right away. Labs on a chip can also be used in traditional chemistry or biology labs to speed up processes such as DNA testing or screening for the presence of cert...

Mass vaccination unnecessary in the event of a large bioterrorist US smallpox attack

... cancel out any benefit from mass vaccination. One person in 10,000 will have a severe reaction and one in a...re then considered to be immune from smallpox. A person can become infected by prolonged, face-to-face exposure with someone who is contagious, direct conta...

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