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Tag: "parasites" at medical news

Genetic Factors Behind Mosquitoes Resistance to Malaria Identified

...into an active state capable of grabbing on to the parasites surface and targeting it for termination, they say. In a study, reported online in the Proceedings of the National Academy of Sciences, the researchers used a method called X-ray crystallography to uncover TEP1s three-dimensional structure. It w...

Natural Selection in Butterflies

...asite and the host. This strengthens the view that parasites can be major drivers in evolution." The researchers focused on the Samoan islands of Upolu and Savaii, where in 2001, males of the Blue Moon butterfly made up only 1 percent of the population. In 2006, the researchers embarked on a new survey of th...

Gene Study Throws Up New Targets for Leishmaniasis

...a-azar. What struck the researchers was that these parasites were very similar genetically, even though they cause very different types of disease. Each genome has more than 8,000 genes, but only 200 of them differ across the three species. "The degree of similarity between these species was unexpected," sai...

Cartoons to Dispel Science Phobia for Students

...ans. Some fungi are also used in medicine". From parasites to photosynthesis, from lens to the groundwater situation and from insects to acid substances, these cartoons accompany every single chapter of the 235-page book to help students understand science better. "The best way to make a thing simple is th...

Useful Parasites

...ale less fertile. A recent study has revealed that parasites can become more helpful rather than harmful. The vivacious Wolbachia is actually giving the host a boost in its fertility, in order to spread itself in nature. This new study reveals the Symbiotic or mutually beneficial partnership that develops in...

Disease Outbreak Claims Trout From Idaho Hatchery

...come lethargic and eventually die. In the end, the parasites become so numerous on an infected fish's gills that it simply smothers them. In addition to the outbreaks in Nampa, a sudden thunderstorm last year washed debris-laden runoff into Idaho's Sawtooth hatchery near Stanley, weakening chinook salmon and...

Afghan Children Fall Victim to a Disfiguring Disease

...on has recovered." The deep ulcers caused by the parasites will heal if left untreated, but that invariably i...l Abdullah Fahim. The sandflies that spread the parasites are carried by animals including dogs and a species of gerbil, a type of rodent, as well as people. ...

Antibody-based Therapies Effective at Controlling Malaria

... antibodies can be determined using rodent malaria parasites transgenic for P. falciparum antigens in mice and humans. An in vivo mouse model has significant advantage over the use of new world primates, the only other model for human malaria, which are labor-intensive and difficult to reproduce. These novel...

Antifolate Drugs may Be Effective in Treating P Vivax Malaria

...of choice, all three therapies effectively cleared parasites by day 14 and were well tolerated. "These drugs may be appropriate for unified treatment where species-specific diagnosis is unavailable, most likely in combination with other drugs, said the researchers....

Why Malaria Parasite Affects Red Blood Cells Deformability Revealed

...ity remained normal in red blood cells infected by parasites without RESA during the first 24 hours of infection, while in parasites where RESA was turned back on after being knocked out, it was affected in a manner as though the pro...

Malaria and HIV Jointly Affects Pregnant Women and Their Infants

... occurs when red blood cells infected with malaria parasites congregate in the placenta resulting in harm to bo...body that allows women to preferentially clear the parasites in their placentas. The results showed that HIV-infected women lose these antibodies and again bec...

Mutant Parasites, Unable to Infect Hosts, Highlight Virulence Genes

...dison have identified dozens of clues to how human parasites may infect their hosts . The researchers identif...parasites, then looking to see which of the mutant parasites could no longer infect host brains. "Let's let the parasite tell us what's important," Knoll says....

IDRI and Chembio to Develop Tests for Leishmaniasis and Leprosy

...pment. A complex of different diseases, Leishmania parasites cause fatal infections of internal organs, as well...ng-term daily injections. Leishmania are protozoan parasites that inhabit macrophages or the white blood cells of the immune system. The parasites are transmitte...

New Insights into Antimalarial Drug Resistance

...e, and then ruptures liver cells, spewing many new parasites into the blood. A fever results from the infection, and this is followed by repeated cycles of mounting parasitic reproduction within red blood cells and accompanying fever. During red blood cell infection, P. falciparum degrades the hemoglobin ...

Useful Parasites

...ale less fertile. A recent study has revealed that parasites can become more helpful rather than harmful. The vivacious Wolbachia is actually giving the host a boost in its fertility, in order to spread itself in nature. This new study reveals the Symbiotic or mutually beneficial partnership that develops in...

Arsenic in Chicken Feed may Cause Health Complications

...chicken feed assists in enhancing growth, destroys parasites and perks up the pigmentation of chicken meat. In its pure form roxarsone may not cause much harm. The same compound under certain anaerobic conditions gets transformed into toxic forms of arsenic. Arsenic is known to cause cancer of the lung, kidney...

A New Pathway To Deal With Sleeping Sickness

...eli and colleagues describe a pathway in T. brucei parasites that they named SLS (SL-RNA silencing). Triggering...ng SLS could therefore be a novel way to eradicate parasites and prevent sleeping sickness - trypanosomiasis. The researchers also believe this could have implic...

Scientists Boost Production of Cheap Malaria Drugs

...alaria. Over 100 countries use it to fight malaria parasites that have become resistant to the drug chloroquine. A study, published in the Journal of Agricultural and Food Chemistry this week (13 February), found that growing Artemisia annua in fertiliser-poor "acidic soils with a mild potassium deficiency" ...

Sleeping Sickness Comes to India

...medical services (1). Morphological examination of parasites contained in the patient’s blood revealed the presence of many trypanosomes belonging to the species T. evansi, which usually infects animals, particularly cattle. The patient, who had been suffering for several months from recurring bouts of fever...

Chinese Scientists Take Malaria Fight to Africa

...asite Pool Li expects the total pool of malaria parasites in the islanders to drop sharply after the mass administration of drugs. But because infected mosquitoes -- which have a 30-day life span -- may still be lurking and transmit the disease, a second round of mass drug intake will be carried out 40 da...

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