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Latest Nematodes Stories

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2010-01-15 11:51:04

Microscopic nematode worms can be a potent organic insecticide, killing crop-raiding bugs without harming plants or beneficial insects and without the environmental side effects of chemicals. But when the worms are mass-bred for agricultural purposes, they tend to, as Byron Adams says, "wimp out," and are not as deadly as their cousins that grow in the wild. The Brigham Young University biology professor and his students analyzed the genetic changes in lab-raised worms that make them less...

2010-01-08 16:18:54

Researchers at Oregon State University and the University of Georgia have developed an improved, more efficient method to test for the most serious of the parasitic worms in sheep, a problem that causes hundreds of millions of dollars in losses every year to the global sheep and wool industry. This technology is now available, and will allow a faster, easier and less expensive way to test for the presence and quantity of Haemonchus contortus, or "barber pole" worms, a species that is very...

2009-11-21 13:45:00

WASHINGTON, Nov. 21 /PRNewswire-USNewswire/ -- A regional initiative launched in the 1990s to eliminate onchocerciasis (river blindness) in the Americas has substantially reduced the prevalence of the disease in recent years, as evidenced by a 31% decrease in the number of individuals requiring mass drug administration in six endemic countries. Results were reported today at the 58th annual meeting of the American Society of Tropical Medicine and Hygiene (ASTMH). The reported progress...

2009-10-27 11:31:24

It is possible to simultaneously survey a number of neglected tropical diseases (NTDs) in the challenging environment of Southern Sudan, according to a new study published October 27 in the open-access journal PLoS Neglected Tropical Diseases. The research, coordinated by Malaria Consortium Africa on behalf of the government of Southern Sudan, rapidly identified areas requiring mass treatment for schistosomiasis and intestinal worm infections, and showed that two diseases, lymphatic...

2009-09-29 14:19:25

British and Vietnamese scientists say they've discovered parasitic gut worms, such as hookworms, might help prevent and treat asthma and other allergies. Researchers led by Dr. Carsten Flohr of the University of Nottingham, and Dr. Luc Nguyen Tuyen of the Khanh Hoa Provincial Health Service in central Vietnam said their study is the largest double-blind, placebo controlled clinical trial to date looking at potential links between hookworm and other gut worm infections and allergic conditions...

2009-08-11 08:57:18

Working with researchers in China, biologists at UC San Diego have discovered how a Chinese drug effective in killing parasitic roundworms works. Their discovery of the drug's biological mechanism provides important new information about how to combat parasitic roundworms, which infect more than a billion people in tropical regions and are one of the leading causes of debilitation in underdeveloped countries. The researchers detail their findings in the current issue of the open-access...

2009-07-22 17:02:05

A study in Mali and Senegal where river blindness was endemic has provided evidence of the feasibility of the disease's elimination, researchers said. Previously, it was thought that elimination of river blandness, also known as onchocerciasis, was only possible in the limited, isolated areas in the Americas where the disease is endemic, officials at the World Health Organization in Switzerland. This evidence is an historic milestone -- it has far-reaching implications for the fight against...

2009-07-03 12:03:17

A new drug to be tested in three African countries could greatly reduce cases of onchocerciasis, commonly called river blindness, health officials said. This is a devastating illness that has plagued 30 African countries for centuries, said Dr. Uche Amazigo, director of the African Program for Onchocerciasis Control. More than 100 million Africans are at risk of infection from the disease, Amazigo said. The drug, moxidectin, developed by Wyeth Pharmaceuticals, kills the larvae and adult worms...

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2009-07-01 16:50:24

The World Health Organization said Wednesday that a drug commonly used to treat pets with parasites may offer hope in eradicating river blindness. Moxidectin, prescribed for dogs, cats, cattle and horses to treat parasites, shows potential to destroy the worms that cause river blindness, an infectious disease that threatens 100 million people, the U.N. agency said.  The condition, whose formal name is onchocerciasis, comes with debilitating symptoms such as loss of sight, severe rashes...

2009-06-25 09:41:21

Researchers studying the nervous control of nematode mating behavior have produced video footage of a male worm preparing to mate with a hermaphrodite. Writing in the open access journal BMC Biology, Allyson Whittaker and Paul Sternberg from the California Institute of Technology investigated the role of the excitatory neurotransmitter acetylcholine in regulating tail muscles to achieve an exploratory embrace.The video shows an intimate moment between two nematodes of the species...


Latest Nematodes Reference Libraries

Nematology
2013-09-30 13:49:26

Nematology is the study of nematodes, also known as roundworms, which first began in the nineteenth century. Like many fields of study, nematology began with ancient recordings and descriptions lacked elements of modern science. The oldest record of a nematode occurs in the Pentateuch in the fourth book of Moses known as Numbers. The reference, although not plainly stating roundworms or nematodes, is thought to refer to Dracunculus medinensis, a species that is native to the area near the Red...

Trichuris suis
2014-01-12 00:00:00

Trichuris suis is a species of whipworm that is classified within the Nematoda phylum. It can be found in warm tropical regions throughout the world but is rare in arid regions. Males reach an average body length between 1.1 and 1.5 inches, while females reach an average length between 2.3 and 3.1 inches. This species, and other members of the Trichuris genus, was given its common name because of its whip like appearance. The original definitive hosts of this species are pigs, but it is able...

2014-01-12 00:00:00

Phasmarhabditis hermaphrodita is a species of roundworm that is classified within the Nematoda phylum. This species is found in soils where slug species from the Limacidae, Arionidae, and Milacidae families are located, with one common host being Deroceras reticulatum. The worm can be located in soil by using real-time PCR testing methods, a test that also distinguishes it from its similar relative, Phasmarhabditis neopapillosa. The life cycle of Phasmarhabditis hermaphrodita begins in...

Onchocerca volvulus
2014-01-12 00:00:00

Onchocerca volvulus is a species of roundworm that is classified within the Nematoda phylum. This species causes the disease onchocerciasis, more commonly known as river blindness. The life cycle of this species is dependent upon an intermediate host, typically the black fly, and a definitive host, which is always a human. Its lifecycle begins when a black fly ingests microfilariae from a human host by consuming blood. The microfilariae that were present in the skin of the human host now...

Trichinella spiralis
2014-01-12 00:00:00

Trichinella spiralis, sometimes known as the pork worm, is a parasite within the Nematoda class. It can be found in pigs, rats, humans, and bears. This worm causes trichinosis in humans, most often from consuming undercooked pork. This species is the smallest within its class, reaching an average body length of .16 centimeters. Females are twice as large as males, displaying a sexual dimorphism. The reproductive organs of females are unique to the species in that the front end holds developed...

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Word of the Day
cacodemon
  • An evil spirit; a devil.
  • A nightmare.
  • In astrology, the twelfth house of a scheme or figure of the heavens: so called from its signifying dreadful things, such as secret enemies, great losses, imprisonment, etc.
'Cacodemon' comes from a Greek term meaning 'evil genius.'
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