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Tag: "person" at biology news

Studies reveal how plague disables immune system, and how to exploit the process to make a vaccine

...e infection progresses faster, spreads easier from person to person, and is far more deadly, killing 100 percent of those who do not receive the right antibiotics soon after exposure. "There is," the authors note, "an urgent need for vaccine development." One of this microbe's enduring mysteries has been h...

Newest HIV drugs should be used with FUZEON(R)

...ion improves quality of life Spike, a 48 year old person living with HIV from London, whose blood levels of HIV reached undetectable within six months of taking FUZEON and boosted tipranavir and has remained undetectable ever since, explains "This new combination of treatments has really improved my qualit...

Researchers discover mechanism for multiplying adult stem cells

...these cells, you can then place them back into the person where they would grow into healthy tissue." "This could be very beneficial for burn victims," Jaenisch adds. Researchers in his lab are also exploring whether activating Oct4 in somatic cells, such as skin cells, would make it easier for these cell...

Scientists succeed in cloning human embryos from eggs matured in the lab

...ic cumulus1 cells (i.e. non-germ cells) of another person ?a process known as non-autologous nuclear transfer. After time for nuclear re-programming the oocytes were artificially activated by incubation in a medium containing calcium ionophore, which enabled the injected nucleus to prepare for the first emb...

Invitrogen Launches i-Path -- A Unique Systems Biology Platform at BIO 2005

...ic cumulus1 cells (i.e. non-germ cells) of another person ?a process known as non-autologous nuclear transfer. After time for nuclear re-programming the oocytes were artificially activated by incubation in a medium containing calcium ionophore, which enabled the injected nucleus to prepare for the first emb...

Bees, Brains and Addiction

... granted immediately for a simple behavior or if a person must work to receive the reward. His discovery is one of many that renowned neuroscientists in La Jolla have conveyed in non-technical language to students, teachers and other non-scientists in San Diego through a neuroscience educational outreach p...

Purdue scientists may have found key to halting spinal cord damage

...es, and not much is needed to be dangerous. When a person inhales smog or tobacco smoke, for example, the fluids lining the respiratory tract show an acrolein concentration of about a millimole - not much by measuring-cup standards, but still over 1,000 times more than usual. "If you took a single grain of...

New insights into how Huntington's disease attacks the brain

...rly and children as young as 2. Slowly depriving a person of their ability to think, speak, walk and swallow, the disease robs the person of their independence, leading to death within 10 to 25 years. Every carrier of the HD gene mutatio...

Thinking the pain away? Study shows the brain's painkillers may cause 'placebo effect'

...have shown that the brain reacts physically when a person is given a sham pain treatment, which they believe will help them. But the new study is the first to pinpoint a specific brain chemistry mechanism for a pain-related placebo effect. It may help explain why so many people say they get relief from th...

Can't serve an ace? Could be muscle fatigue

...ue, 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 uncertainty about where the limb was. "In the absence of sight, people judge th...

Gap-climbing fruit flies reveal components of goal-driven behaviors

... to vertebrate motor programs--for example, when a person is trying to reach a jar on a shelf high above her head, she will reach out with her arm and hand, will straighten her back, and tiptoe. Studying the underlying control principles and neuronal circuits in invertebrates rather than in mice or cats in...

Fundamental discovery -- Bone fracture

...ity is valuable because it reveals how much bone a person has left. The amount of an individual's bone miner...s for the rest of his or her life. By the time the person becomes elderly, very serious bone loss may have occurred. "As if this weren't bad enough, it is al...

Survival of heart patients on beta-blockers varies greatly with genetic variation

... the gene's coding sequence will be identical from person to person at all other points. Thirty-nine percent of the population possess a set of beta-2 genes with a C ba...

U of MN researchers reverse memory loss in mice

... over time and had brain atrophy similar to what a person with Alzheimer's disease goes through. The researchers further designed the mice so that the transgene that causes these symptoms could be "turned off." Transgenes are genes from one organism that have been incorporated into another organism. The re...

Naturally occurring asbestos linked to lung cancer

...or every 10 kilometers (about 6.2 miles) farther a person lived from the nearest asbestos source. The association was strongest in men, but was also seen in women. No such association showed up in the pancreatic cancer group. The study was not designed to determine the "ground zero" risk for those living cl...

UCSD study clarifies insulin's role in blocking release of energy in patients with type II diabetes

...form of triglycerides, commonly known as fat. If a person is obese, excess triglycerides are stored in the adipocytes. The new study shows that insulin weakens the normal linkage between catecholamine receptors and the turn-on of PKA. “If insulin levels get too high for too long a time ?which happens in ma...

Bacteria can survive for weeks on hospital surfaces

...ns. "The potential of MRSA to be transferred from person to person, in large part, depends on its ability to survive on environmental surfaces," says researcher Kris Owens of Ecolab, Inc. in Mendota Heights, Minnesota. For the study, two strains of MRSA were inoculated in triplicate onto coupons made of b...

MRSA study demonstrates need for frequent hand washing and environmental disinfection in health care settings

...ns. "The potential of MRSA to be transferred from person to person, in large part, depends on its ability to survive on environmental surfaces," says researcher Kris Owens of Ecolab, Inc. in Mendota Heights, Minnesota. For the study, two strains of MRSA were inoculated in triplicate onto coupons made of b...

Methamphetamine Abuse, HIV Infection Cause Changes in Brain Structure

...se did not correlate with the amount of the drug a person ingested. However, the study results suggest that younger methamphetamine abusers showed larger effects in some brain regions. Among HIV-infected individuals, the researchers noted a direct association between the severity of the infection and greate...

Progress on HIV/AIDS significant but insufficient

...programmes was still low. Globally, fewer than one person in five had access to services to prevent AIDS, owing to the hesitation of leaders and to persistent taboos relating to sexuality and high-risk behaviour. The main recommendations included targeting prevention efforts in countries where the epidemic ...

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