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Lice in Biological News

Pubic hair provides evolutionary home for gorilla lice

... There are two species of lice that infest humans: pubic lice, Pthirus pubis , ... inspiration while pondering the question of why lice would separate into two groups when our ancestors ... suggesting that early humans somehow caught pubic lice from their gorilla cousins. Happily, this may not ...

Ocean fish farming harms wild fish, study says

... fish in areas with sea-cage farm fish. "Sea lice are an important example of disease transfer in ocean fish farming," explains Frazer. "Sea lice are tiny crabs that attach to marine fishes, ... tissues less salty than the ocean. Also, when lice puncture the skin they create an entry point for ...

Mummy lice found in Peru may give new clues about human migration

... GAINESVILLE, Fla. lice from 1,000-year-old mummies in Peru may unravel ... authors. DNA sequencing found the strain of lice to be genetically the same as the form of body lice that spawns several deadly diseases, including ...

Fish farms drive wild salmon populations toward extinction

... shows, for the first time, that parasitic sea lice infestations caused by salmon farms are driving ... Krkosek and his co-authors calculate that sea lice have killed more than 80% of the annual pink ... papers by Krkosek and others showed that sea lice from fish farms can infect and kill juvenile wild ...

New study sheds light on Galápagos hawk evolutionary history

... Louis used DNA sequences from feather lice to study how island populations of their host, ... island, then another and another, carrying their lice as they went. These relationships were ... variation in the hawks DNA. The rapidly evolving lice that live their entire lives on these birds have ...

Pharmaceutical use in Norwegian fish farming in 2001-2007

... in Norway from 2001-2007. The sales are shown in kilograms of active ingredient; antibacterials, anaesthetics, anthelmintics and treatments for sea lice and fungi. The figures are based on sales from wholesalers to pharmacies and from feed mills to breeders. After an increase in sales of ...

Salmon farms kill wild fish, study shows

... New research confirms that sea lice from fish farms kill wild salmon. Up to 95 per ... migrate past fish farms die as a result of sea lice infestation from the farms. The results of the ... of America. "We know that fish farms raise sea lice levels, and we know that ...

Researchers reveal the infectious impact of salmon farms on wild salmon

... science) shows that the transfer of parasitic sea lice from salmon farms to wild salmon populations is ... and measure the impact of a fish farm on sea lice outbreaks in wild salmon. The study combined new ... reaching," says lead author Marty Krkosek. "Sea lice production from the farm we studied was four ...

New bacterium discovered -- related to cause of trench fever

... disease team, in collaboration with colleagues from other institutions, found that the new microbe is genetically similar to one spread by body lice in the trenches during World War I. That bacterium, called Bartonella quintana, caused a disease known as trench fever, and debilitated tens of ...

How Rickettsial pathogens break into cells

... Their findings will be reported in the December 16, 2005, issue of the journal Cell. Rickettsial bacteria are transmitted by fleas, ticks, and lice to humans and other mammals, where they can cause dangerous and sometimes fatal infections. There are two types of Rickettsial pathogens--the spotted ...

DDT-resistant insects have additional genetic advantage that helps resistance spread

... increased enormously on a worldwide basis after World War II, primarily because of its effectiveness against the mosquito that spreads malaria and lice that carry typhus. DDT-resistant mosquitoes were first detected in India in 1959, and they have increased so rapidly that when a local spray ...
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(Date:4/17/2014)... IPCC meeting painted a stark warning on the possible ... a greenhouse effect 32 times that of carbon dioxide. ... humic substances act as fully regenerable electron acceptors which ... in wetlands instead of being released to the atmosphere. ... disrupted it may enter into a vicious cycle to ...
(Date:4/17/2014)... Indiana University researchers have detected new early-warning signs of ... discovery could have far-reaching implications for the diagnosis and ... over 25 million Americans. , "We had not expected ... such early stages," said Ann Elsner, professor and associate ... author of the study. "We set out to study ...
(Date:4/17/2014)... at the University of Texas Medical Branch at ... women treated with radiation for cervical cancer should ... , The UTMB researchers, finding a high ... survivors treated with radiation, offer new recommendations that ... cancer screening about eight years after their initial ...
Breaking Biology News(10 mins):Methane climate change risk suggested by proof of redox cycling of humic substances 2New technique detects microscopic diabetes-related eye damage 2New technique detects microscopic diabetes-related eye damage 3Radiation therapy for cervical cancer increases risk for colorectal cancer 2
(Date:4/17/2014)... to a study published today in PLOS Pathogens ... where malaria is common can mount an immune response ... to avoid repeated bouts of high fever and illness ... their bloodstream. The findings may help researchers develop future ... the malaria parasite. , Each year, approximately 200 million ...
(Date:4/17/2014)... Pediatrician-in-Chief Jon McCullers, MD, was recently invited to ... Nature Reviews Microbiology , one of the ... world-renowned infectious disease specialist, and chair of the ... Health Science Center, analyzed the epidemiology and microbiology ... pandemics, as well as more recent 2009 novel ...
(Date:4/17/2014)... The cause of neuronal death in Parkinson,s disease ... neurons may be mistaken for foreign invaders and killed ... way autoimmune diseases like type I diabetes, celiac disease, ... was published April 16, 2014, in Nature Communications ... idea in Parkinson,s disease; but if true, it could ...
(Date:4/17/2014)... led by researchers at UC Davis has shown that ... role in cell division, also boosts the mitochondrial activity ... the complex has been shown to perform both jobs. ... target to control cellular energy production, potentially advancing cancer ... today in the journal Developmental Cell . , ...
(Date:4/17/2014)... 2014 Meaningful long-term survival is possible for ... abdomen when treated with cytoreductive surgery with Hyperthermic ... analysis by physicians at Wake Forest Baptist Medical ... reported, single-center experience with cytoreductive surgery and HIPEC, ... analysis of 20 years, worth of patient data ...
Breaking Medicine News(10 mins):Health News:Study sheds light on how the immune system protects children from malaria 2Health News:Is Parkinson's an autoimmune disease? 2Health News:Dual role: Key cell division proteins also power up mitochondria 2Health News:20 years of data shows treatment technique improvement for advanced abdominal cancer 2
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