Tag: "tick" at biology news
Keeping the body in sync -- The stability of cellular clocks
...co involving families whose circadian clocks don’t tick
quite right. These families?clocks are shorter than 24 hours, and they also have mutations in oscillator-related genes. The current results shed light on how a genetically-linked phosphorylation event gone wrong could lead to inaccurate timing of our...
A new view on Lyme disease: Rodents hold the key to annual risk
...risk of Lyme disease in a given year: abundance of tick
hosts--white-footed mice and chipmunks--in the pre...tailed deer population dynamics as determinants of tick
abundance and disease risk. But few have investigated the impacts of fluctuations in the abundance o...
Ticks, flukes, and genomics: Emerging pathogens revealed
...outer membrane surface. When the bacteria, through tick
bites, transfers to a human, say, or horse, the ba...nce, appear capable of making vitamins that a host tick
lacks in its regular diet. "This study is a beautiful example of how in-depth comparative genomics...
Infectious disease expert warns of spread of Rocky Mountain spotted fever
...icks. Four of the patients had a recent history of tick
bite. Tests of the dogs' blood confirmed their infection with the spotted fever bacterium. Feral dogs and brown dog ticks are not a species found naturally in the Arizona region, but were introduced to the state as domesticated dogs that moved with ...
For first time, brain cells generated in a dish
... like cancer cells. Knowing what makes these cells tick
may help by furthering our knowledge of the biology of the tumor." ...
Scientists show that tick-borne flaviviruses use a novel mechanism to evade host defenses
...ailand. Langat virus can infect people following a tick
bite, but there are no cases of natural disease re...rn India). "These diseases are spread by the same tick
that carries Lyme disease in the U.S.," says Dr. Bloom. "So, the fact that West Nile virus first app...
Scientists reveal how disease bacterium survives inside immune system cell
...nd cows. A. phagocytophilum is carried by the same tick
that transmits Lyme disease and was first identified in humans in 1996. Human granulocytic anaplasmosis (HGA) -- formerly called human granulocytic ehrlichiosis -- is prevalent in Minnesota and along the East Coast. HGA typically causes mild symptoms...
Bee mites suppress bee immunity, open door for viruses and bacteria
...ite is a honey bee parasite that feeds much like a tick
on the body of a bee. The mites are about the size of a pin head, dark brown in color and visible on close inspection. This bee mite probably arose in the Eastern or Chinese Honey Bee population and hopped over to the United States in 1987. They qui...
Researchers identify protein crucial for survival of Lyme-disease bacterium
... of blood, it is unable to be transmitted from the tick
to a new animal host, researchers at UT Southweste...relia burgdorfei (Bb) to survive in the gut of its tick
host and may offer a potential new target for agents aimed at eradicating Lyme disease. Results of ...
Multiple Campylobacter Genomes Sequenced
...ts can learn much more about what makes a bacteria tick
than they can learn from a single sequence. Derrick Fouts and his colleagues have taken this comparative approach with Campylobacter. Infection with a Campylobacter species is one of the most common causes of human bacterial gastroenteritis. In the ...