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Tag: "acquired" at biology news

Reminding doctors which antibiotics to prescribe cuts C. difficile infection rates

... policy and practice in the fight against hospital acquired infection. This statement is intended to help produce well designed studies that will aid that fight" ...

Satellites shed light on global warming

...a in the face of this warming through radar images acquired by ESA’s ERS and Envisat satellites. The retreat has been accelerating since 1992 and has culminated in two collapse events: Larsen-A in January 1995 and Larsen-B in March 2002. Envisat captured the disintegration of the 200-metre-thick Larsen-B...

Sea urchin genome suprisingly similar to man and may hold key to cures

...ents: innate immunity, with which we are born, and acquired immunity, which is the ability to produce antibodies in response to an infection. Sea urchins only have innate immunity, and it is greatly expanded with 10 to 20 times as many genes as in human. "Considering that sea urchins have a long life span ...

Climate experts search for answers in the oceans

...edspiration Project." The large volume of data acquired by satellite observations gives scientists a uniquely detailed view of the changing physical characteristics of ocean surfaces, but long-term series of satellite measurements are required in order to detect trends. The National Oceanographic Data...

Older men treated for early prostate cancer live longer than those who are not

...undergo treatment during that time." Researchers acquired the necessary data for this study from the Surveillance, Epidemiology, and End Results (SEER) Medicare database, a population-based cancer registry which encompasses approximately 14 percent of the US population. Data was included on 44,630 men, aged...

76 percent of workers older than 60 years of age are overweight or obese

...diovascular illness The metabolic syndrome has acquired increasing interest in the area of prevention. In the first place, this syndrome is associated with the development of diabetes, closely linked to arterial thrombosis; and in the second place, it is a self-generating spur for acute myocardial infarct...

Resistant bacteria increasing source of muscle infection

...month. In the cases she studied, the infection was acquired in the community, she said. "I think it is impor...hospitalized patients. The form of MRSA that is acquired in the community spreads more easily than that usually caught in the hospital, said Pannaraj. "Th...

When nerve cells can't make contact

...lly a pure basic research project has consequently acquired direct relevance to medicine. "What we see in our neuroligin mutants is a more intensified form of the malfunction that occurs in the brain of autistic people," says Brose. "I believe that autism is a disease of the synapses, a synaptopathy." The Max...

Rhesus monkeys in Nepal may provide new alternative for HIV/AIDS research

... a relatively small number of animals that will be acquired from areas of known human-monkey conflicts," said Kyes. "In Nepal, this conflict is caused by monkeys that raid staple crops such as sweet potatoes and corn. Crop raiding is prevalent in many areas in Nepal and in the last five to 10 years there are...

Tests for 'face-blindness' reveal disorder may not be so rare

... prosopagnosia. Most documented cases have been of acquired prosopagnosia, due to brain damage suffered after maturity from head trauma, stroke, and degenerative diseases. The other type is called developmental prosopagnosia. These individuals can have similar symptoms but with no evidence of brain damage. It...

Where we change our mind

...esented by the subject's belief. As information is acquired through observation, this belief may become increasingly convincing or alternatively may be discarded in favor of a new one. This is an intuitive way of making estimations that are appropriate for many real-world behaviors, adopted also by a wide var...

MRSA vaccine shows promise in mouse study

...emergency rooms with virulent S. aureus infections acquired from community rather than health care related sources. ...

Study defines effective microbicide design for HIV/AIDS prevention

...a person's immune system and can progress to AIDS, acquired immune deficiency syndrome. The HIV pandemic continues to overwhelm current preventative measures as an estimated 12,000 people contract the infection each day, the researchers said. Increasingly, a disproportionate number of women are becoming in...

Bacteria have their own immune system protecting against outside DNA

... bacteria need to cause disease are encoded by DNA acquired from other bacteria. The researchers found that when the bacteria is infecting a host, other molecules can compete with the H-NS protein, allowing the disease-causing genes to be expressed. When the bacteria are in the environment, H-NS turns these g...

Report focuses on the role good microbes play in future medicine

...the appropriate development of both the innate and acquired immune systems. Once established, probiotic organisms interact with these immune defenses, possibly changing the nature of the immune response to other antigens, including commensal and pathogenic organisms," says Walker. The report is the outcome ...

Researcher gives hard thoughts on soft inheritance

... Lamarck, for instance, believed that shore birds acquired their long legs by constantly stretching their legs to lift themselves out of the water and that generations later that kind of environment gave rise to birds with long legs. Neo-Lamarckian views of evolutionary change stress the importance of the e...

Cultural transmission in bats: When listening for dinner, bats learn from their neighbors

... alone. In the social learning group, bats rapidly acquired the novel association in an average of 5.3 trials. In the social facilitation and trial-and-error groups, most bats did not approach the call of the poisonous species even after 100 trials. These results suggest that once acquired, novel prey-cue/pre...

Montreal researchers identify defects of immune cells

...ransgenic mice by preventing T lymphocyte mediated acquired immunity to Candida albicans. The results also showed extensive perturbations in the production of cytokines required for protection against oral candidiasis in the transgenic mice. "These findings regarding the specific immune defects which trigger...

Cigarette smoke blocks cell repair mechanism, University of Florida study shows

... a cigarette in the laboratory-and found the cells acquired mutations characteristic of malignant cells. The scientists say DNA repair appears to be compromised when chemical components of smoke activate a key gene. That gene interacts with an enzyme that plays a crucial role in repairing damaged DNA, preve...

Scientist-astronaut sends T-cells into space

... the dangerous infections that are the symptoms of acquired immunodeficiency syndrome (AIDS). The problem of immunosuppression in microgravity was first noted during the Apollo moon mission series in the 1960s and 1970s, when 15 out of 29 Apollo astronauts developed infections during their missions or soon...

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