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Tag: "suspected" at biology news

Infectious disease expert warns of spread of Rocky Mountain spotted fever

...mples from 16 patients across Southeastern Arizona suspected of having the infection. Laboratory tests, including immunohistochemical staining, confirmed that 11 had the disease, while the remaining five were still probable cases. When the researchers examined the patients' home environments for possible clue...

How HIV disables the cells' call for help

...e initial stage of cell infection. The researchers suspected that FP, which is only exposed for a short period during this process, may have enough time to affect the immune response as well. Indeed, they found that FP locks on to several proteins on the cell walls that are involved in invoking a large-scale i...

Researchers find how some antibiotics kill bacteria

...n't see what the problem was," she said. "We never suspected that removing this ion was what killed rifamycin-sensitive bacteria. But the resolution of previous atomic structures wasn't sufficient enough to see that." The higher-resolution images also showed that rifapentin and rifabutin each bind just a litt...

Ships bring alien jellyfish invaders to our shores

...stions about the migration and introduction of any suspected non-native marine creatures, according to its developers, UNSW oceanographers, Associate Professor Matthew England and Alex Sen Gupta. "Until now our knowledge of natural and human-assisted dispersal of species has been insufficient to confidently t...

Scientists uncover new clues about brain function in human behavior

...y excessively. For several years, scientists have suspected that abnormal processing in the amygdala, an almond-shaped structure deep in the brain, may be involved in this striking pattern of behavior. The amygdala's response and regulation are thought to be critical to people's social behavior through the mo...

Old drug, new tricks: Prospects for slashing the impact of malaria

...aching us that it can perform tricks that we never suspected it could." The four-year trial is being conducted in PNG for a number of reasons. First, PNG is a relatively confined area with a high concentration of all four types of global malaria ?unlike Africa, where one type predominates. Second, outstandin...

New Lab Research May Help Those Deafened By Immune System Attack

...d 20 people with normal hearing. The patients were suspected of having an auto-immune cause for their hearing loss, and all received steroids, but they hadn't been formally diagnosed. The researchers found that more than half of the hearing-loss patients had antibodies against a protein found in the inner ear...

Monkeypox mystery: New research may explain why 2003 outbreak in the US wasn't deadly

... infected and were responsible for 72 confirmed or suspected cases of human monkeypox. "Unlike African outbreaks, the U.S. outbreak resulted in no fatalities and there was no documented human-to-human transmission," Buller said. Monkeypox is part of a family of viruses that cause human smallpox, cowpox, and ...

Researchers uncover E. coli's defense mechanism

...ince nitric oxide binds to metals, the researchers suspected that there might be a metal in the protein. "It turns out that the protein NorR contains a single molecule of iron," said Spiro. "Our study found that the nitric oxide binds to the iron, which in turn activates the protein." Once activated, the pro...

Reversal of role for a viral protein associated with the development of lymphoma

...o the investigators. "While some scientists have suspected that large introns might not be removed in one piece through direct splicing, no one had identified how this could happen. Now we have identified a way," said Antonio-Javier Lopez, professor of biological sciences at Carnegie Mellon. Ultimately, recu...

Carnegie Mellon University research reveals how cells process large genes

...o the investigators. "While some scientists have suspected that large introns might not be removed in one piece through direct splicing, no one had identified how this could happen. Now we have identified a way," said Antonio-Javier Lopez, professor of biological sciences at Carnegie Mellon. Ultimately, recu...

Fragment of yellow fever virus may hold key to safer vaccine

...d, could be used for prophylactic protection after suspected exposure, or for therapy, but ter Meulen does not think that pharmaceutical companies are likely to take this approach. More realistically, he said, the findings could help manufacturers design a more consistent vaccine based on recombinant genetic t...

Aptamer-based Biosensor screens Air Force personnel and equipment

...." With the prototype system, the user sprays the suspected contaminated area, creating a sample that can be picked up by a swab. The sample material on the swab is suspended in liquid by rinsing it in a container. Once in a liquid form, the sample is injected into a special flow cell, the place where the ass...

Unexpected lock and key mechanism found for the assembly of tumor blood vessels

...lammation response, but until this study it wasn't suspected of regulating angiogenesis. It's possible that since the integrin only works on developing blood vessels and in cancer, disrupting its ability to form blood vessels could starve the tumor and stave off cancer." The research team discovered that the ...

Study: Harmless virus kills some cancers

...st cell's life cycle and kill it. Scientists have suspected that AAV2 has cancer-suppressing properties. In previous studies, Meyers and his team found that one of the ways AAV2 suppresses cancer is by inhibiting the normal process of DNA duplication of human papillomavirus (HPV). HPV is known to lead to cerv...

New Vaccine To Be Used For First Time In Polio Outbreak Response

...ng field investigations have identified additional suspected polio cases across the affected governorates in Yemen. Low immunization rates among Yemen's children may facilitate the spread of the virus. Experts are now planning an outbreak response, using the recently-developed monovalent oral polio vaccine ty...

Researchers use 3-D imaging system to unveil swimming behavior of microscopic plankton

...tches. For almost a century ocean scientists have suspected that these patches form when the zooplankton swim against the ocean currents. In all those years, however, an understanding of zooplankton swimming response to ocean currents has remained elusive, mainly due to the lack of technology to track the mot...

Genetic links could unlock clues to leading cause of blindness

... rhesus monkeys. Dawson and other researchers have suspected for years that the disease was very similar in humans and monkeys, but these findings finally establish that. This discovery, he said, will allow researchers to delve deeper into what causes the disease and could be the first step toward repairing th...

U of T researchers map role of Epstein-Barr virus in cancer

...1 is a protein coded in the Epstein-Barr virus and suspected to play a role in the development of cancer," says Lori Frappier, professor in medical genetics and microbiology at U of T and senior author of a paper in the April 1 issue of Molecular Cell. "This research shows how EBNA1 interferes with natural ce...

Census of Marine Life explorers surprised by diversity, density of Arctic creatures

...mid several thousands specimens and images include suspected new species of jellyfish and benthic bristle worms, and the first squid and octopus ever found in the area. Scientists were also intrigued to discover among other things two species of sand flea-like crustaceans (amphipods) which, though familiar, h...

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