Tag: "ticks" at biology news
Back to the future: Mastodon extends the time limit on DNA sequencing
...in proboscideans, showing that the molecular clock ticks
differently for different taxa. ...
Tips from the Journals of the American Society for Microbiology
...Harmful Parasite A defense molecule isolated in ticks
infected with the Babesia sp. parasite may protect...ng zoonosis. Transmitted to animals and humans by ticks
infected with the Bebesia sp. parasite, symptoms may include fever, fatigue and hemolytic anemia. A...
Bernese Mountain Dogs prone to Borrelia burgdorferi infection
...the spiral-shaped bacteria, which are passed on by ticks
and can also cause Lyme disease in humans. Dr B...eir dogs exposure to rural walks and the number of ticks
attached to the dogs. The team used an enzyme-linked immunosorbent assay (ELISA) as well as a Wester...
Tick-related disease thrives on cholesterol, study suggests
... the bite of Ixodes scapularis, or deer tick. Deer ticks
also spread Lyme disease, and are found primarily in the upper Midwest, New England, parts of the mid-Atlantic States and northern California. The disease attacks immune cells called granulocytes, which the body normally uses to destroy infectious ...
Scientists concerned about effects of global warming on infectious diseases
...ria in Africa." "Diseases carried by insects and ticks
are likely to be affected by environmental changes because these creatures are themselves very sensitive to vegetation type, temperature, humidity etc. However, the direction of change whether the diseases will increase or decrease is much more di...
Female ticks have market on gluttony
...lly separate, but not with these ticks." Female ticks
require six to 10 days to engorge fully. First, sh...eriments have already suggested that normal, mated ticks
are unable to fully engorge when feeding on a host that has been immunized against the engorgement f...
'Combination' Lyme disease vaccine proteins patented
...e bacteria while they are in the cold-blooded deer ticks
stomach, and not in the host. After the tick bites a warm-blooded mammalian host, the injected bacteria produce OspC on their surface. With the aim of developing a vaccine that would trigger an immune response against both these life cycle stages, ...
Think herbal supplements are safe? Think again, book by Saint Louis University doctor says
...ped, and he didn't need the test." Dr. Grossberg ticks
off other common herbs that people take without realizing their side effects or how they might interact with medications. St. John's wort sometimes is taken for anxiety and depression. Those who also are taking antidepressants or anti-anxiety medi...
Animal testing alternative has ticks trembling at the knees
...luate new pesticides could be replaced by tricking ticks
into setting up home on a faux cow hide, reports J...icals legislation, next year. Pesticides targeting ticks
are constantly being updated and tested, because pests develop resistance so quickly. Ticks transmit...
Deer-free areas may be haven for ticks, disease
...r Infectious Disease Dynamics. "They get bitten by ticks
but never get infected with tick-borne pathogens, ...ase." However, deer are critical to adult female ticks
in the last stages of their three-part lifecycle. Ticks use them for a final blood meal before dropp...
Biological diversity and human health; Rapid autopsy program; Snake bites and more
...acklegged tick harboring the Lyme bacterium. The ticks
feed on a variety of different vertebrates, includ...ing the tick with the Lyme bacterium. Over 90% of ticks
feeding on white-footed mice become infected compared with fewer than 15% feeding on gray squirrels,...
A new view on Lyme disease: Rodents hold the key to annual risk
...ed to yearly variations in the density of infected ticks
and thus risk of human exposure. While none of the climate variables influenced nymphal infection prevalence, higher temperatures in the previous year and precipitation patterns in the current year had weak, though unexpected, effects on total dens...
Ticks, flukes, and genomics: Emerging pathogens revealed
...habit of being caused by bacteria that live inside ticks
and flatworms. But in the current issue of the journal Public Library of Science Genetics (PLoS Genetics), scientists put ehrlichiosis under the genomic spotlight--and discover some brilliant biology. Led by scientists at The Institute for Genomic R...
Genomics-based vaccine could prevent deadly cattle disease
...asite, Theileria parva , causes the disease. When ticks
infected with T. parva bite cattle, they transmit the parasite, launching the disease that typically kills cattle within a month. In July, 2005, TIGR led a research team that published T. parva 's genome sequence, representing roughly 4,000 genes,...
Rockefeller researchers discover a biological clock within a clock
... extended period of time and watch the clock as it ticks
away in a living cell. At the most basic level, an...s to follow them over time, to see one clock as it ticks
away in a single cell," Young says. "All the biochemistry and molecular biology that had been done o...
Infectious agent thwarts typical defense mechanisms; Sheds light on immune system function
...thusiasts. The bacterium is usually transmitted by ticks
or by contact with an infected animal. Symptoms of tularemia can include high fever, swollen glands, throat infection, diarrhea and vomiting and large, reddish ulcers on the skin. Understanding how the human immune system reacts to F. tularensis may ...
Valuing biodiversity services, including its insurance against disease
... states with more varied potential targets for the ticks
that transmit the disease, such as small mammals and lizards. Conference participants will also learn how West Nile Virus (WNV) carrying mosquitoes prefer some bird species and avoid others, how additional species are likely to be impacted, how impac...
Infectious disease expert warns of spread of Rocky Mountain spotted fever
...first confirmed cases that could be traced back to ticks
carried into to the state on feral dogs, an animal...the source of infection, they found fever-infected ticks
in all patients' yards. Ticks were found in the cracks of stucco walls on patients' homes, in crawl...
UCI awarded $40 million to establish regional biodefense and infectious disease research center
...uses and molecular biology of infections spread by ticks
and insects. In 1982, he gained international recognition as a co-discoverer of the bacterium that causes Lyme disease. He later identified the protein that became an approved vaccine against the disease, and he recently led a team that showed that v...
Scientists reveal how disease bacterium survives inside immune system cell
..., but it is important because it is transmitted by ticks
and causes disease in both animals and humans," Dr. Borjesson says. Neutrophils, which make up about 60 percent of all white blood cells, are the largest cellular component of the human immune system -- billions exist inside each human. Typically, n...