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Latest Parasitic worm Stories

2011-09-28 10:16:44

Researchers from the Walter and Eliza Hall Institute have for the first time identified a 'programmed cell death' pathway in parasitic worms that could one day lead to new treatments for one of the world's most serious and prevalent diseases. Dr Erinna Lee and Dr Doug Fairlie from the institute's Structural Biology division study programmed cell death (also called apoptosis) in human cells. They have recently started studying the process in schistosomes, parasitic fluke worms responsible...

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2011-07-08 12:05:00

According to researchers, sex gives worms the power to fight off parasites. The researchers found that worms forced to reproduce asexually succumbed to a bacterial infection and died. The team said the results are the most convincing evidence to date for a key theory in evolutionary biology. The theory said that sex evolved because it allows organisms to reshuffle their genes into new combinations to stay a step ahead of parasites. The team said that reproducing asexually means there is no...

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2011-05-24 09:44:01

By Carol Clark, Emory University Mummies from along the Nile are revealing how age-old irrigation techniques may have boosted the plague of schistosomiasis, a water-borne parasitic disease that infects an estimated 200 million people today. An analysis of the mummies from Nubia, a former kingdom that was located in present-day Sudan, provides details for the first time about the prevalence of the disease across populations in ancient times, and how human alteration of the environment during...

2011-03-31 01:59:43

Research from Royal Holloway, University of London and the University of Bristol calls into question people's ability to form their own judgements about their preferred election candidate after finding voters could be heavily swayed by 'the worm' - a continuous response tracking measure this is increasingly being used in live election debates around the world. The study "Social Influence in Televised Election Debates: A Potential Distortion of Democracy" is published today (30 March) in the...

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2011-02-21 09:35:00

By Caroline Arbanas, Washington University in St. Louis Scientists have decoded the DNA of the parasitic worm that causes trichinosis, a disease linked to eating raw or undercooked pork or carnivorous wild game animals, such as bear and walrus. After analyzing the genome, investigators at Washington University School of Medicine in St. Louis and their collaborators report they have identified unique features of the parasite, Trichinella spiralis, which provide potential targets for new drugs...

2011-01-12 15:31:00

The team found that a bacterium inside the worm acts as a 'disguise' for the parasite, resulting in the immune system reacting to it in an ineffective way. The bacteria protect the worm from the body's natural defences, but once the bacteria are removed with antibiotics, the immune system responds appropriately, releasing cells, called eosinophils, that kill the worm. Antibiotics are successful against the parasite, but the long treatment regime means that it has limited use across whole...

2010-11-10 16:32:40

In a major breakthrough that comes after decades of research and nearly half a billion treatments in humans, scientists have finally unlocked how a key anti-parasitic drug kills the worms brought on by the filarial diseases river blindness and elephantitis. Understanding how the drug ivermectin works has the potential to lead to new treatments for the diseases, in which the body is infected with parasitic worms, said Charles Mackenzie, a professor of veterinary pathology in the College of...

2010-10-20 13:50:32

How parasites use different life-history strategies to beat our immune systems may also provide insight into the control of diseases, such as elephantiasis and river blindness, which afflict some of the world's poorest communities in tropical South-East Asia, Africa and Central America. The research is due to be published next week in the online, open-access journal PLoS Biology. The study, led by Dr Simon Babayan of the University of Edinburgh, showed using a mouse model of parasite...

2010-09-29 09:20:05

(Ivanhoe Newswire) -- What did the intestinal worm say to the human body when the regulatory T cell-inducing pathway was blocked?  It was nice gnawing you.  But are these gut-invading worms all bad news?  A recent study shows how intestinal worms sidestep the immune system by inducing the development of suppressive T cells and suppress allergic responses. Immune T cells are essential for the clearance of invading microbes -- including the renowned intestinal worm -- but...

2010-03-11 14:40:19

Millions of people in both the developing and developed world may benefit from new immune-system research findings from the University of Pennsylvania School of Veterinary Medicine. The Penn Vet researchers, studying how the immune system operates, have discovered a previously unidentified cell population that may be the body's double-edged sword, fighting off parasitic infections but also causing the harmful immune responses that can lead to allergies and asthma. This cell population, termed...


Latest Parasitic worm Reference Libraries

Rodent Tapeworm. Hymenolepis microstoma
2014-01-12 00:00:00

The rodent tapeworm (Hymenolepis microstoma) is a parasitic worm that is classified within the Platyhelminthes phylum. This species affects rodents across the world, causing hymenolepiasis, but it does not often affect humans. Most of the available information regarding tapeworms is derived from the studies conducted on this worm and the other members of its genus, Hymenolepis. These worms have been present in laboratories since the 1950's and can either be raised and kept in a culture or be...

New World Hookworm, Necator americanus
2014-01-12 00:00:00

The New World hookworm (Necator americanus) is a hookworm that can be found in the New World. This species, along with other species in the Nematode phylum, is a parasitic worm that is commonly found in cats, dogs, and humans. Infections from this species are known as Necatoriasis. However, there are two common species of hookworm that infest humans, known as the Old World hookworm (Ancylostoma duodenale) and the New World hookworm, so infections are generally known as hookworm infections....

Dwarf Tapeworm, Hymenolepis nana
2014-01-12 00:00:00

The dwarf tapeworm (Hymenolepis nana) is a species of tapeworm that is classified in the Platyhelminthes phylum. It once held three other scientific names including Vampirolepis nana and Taenia nana. It is found throughout the world but occurs most often in temperate regions. As its common name implies, the dwarf tapeworm is small, reaching an average body length of 1.5 inches. The head, or scolex, holds a retractable beak like organ that has twenty to thirty hooks and four string suckers,...

Hydatid Worm, Echinococcus granulosus
2014-01-12 00:00:00

The Hydatid Worm (Echinococcus granulosus), also known as the Hyper Tape-Worm, is a species of cyclophyllid cestode that is found in the small intestine of adult canids (canine), but also is found in livestock and humans, which serve as intermediate hosts. This specimen causes Hydatid disease. The adult Hydatid worm is typically less than 0.25 inches in length and has three proglottids (segments) when intact: the immature proglottid, mature proglottid and gravid proglottid. This specimen,...

Giant Thorny-headed Worm, Macracanthorhynchus hirudinaceus
2014-01-05 00:00:00

The Giant Thorny-headed Worm (Macracanthorhynchus hirudinaceus) is a species of acanthocephalan parasite found in the intestines of pigs and other hoofed animals, and can occasionally appear in humans and dogs. The eggs of this parasite are usually found in scarabaeoid or hydrophilid beetles and other similar insects. Worms of this species range in size from less than four-hundredths of an inch to over 15 inches. It causes enteritis, gastritis or peritonitis in affected hosts. While it...

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Word of the Day
humgruffin
  • A terrible or repulsive person.
Regarding the etymology of 'humgruffin,' the OED says (rather unhelpfully) that it's a 'made-up word.' We might guess that 'hum' comes from 'humbug' or possibly 'hum' meaning 'a disagreeable smell,' while 'gruffin' could be a combination of 'gruff' and 'griffin.'