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Tag: "gastrointestinal" at biology news

Cow protein aids in treatment of gastrointestinal disorder

...lori (H. pylori) infection, a major cause of upper gastrointestinal disorders, is unsuccessful in around 25 percent of cases. A new study, published in The American Journal of Gastroenterology, finds that adding a bovine protein called lactoferrin to the existing treatment may yield more effective results, with fewer...

Hexavalent chromium in drinking water causes cancer in lab animals

...ound that hexavalent chromium is absorbed from the gastrointestinal tract," said Hooth. "After it is orally administered, it is taken up by the cells in many tissues and organs." Hexavalent chromium has been brought to the public’s attention in many ways, most notably in the movie "Erin Brockovich." Eleven membe...

Natural antibiotics yield secrets to atom-level imaging technique

...ance, and the linings of the human respiratory and gastrointestinal tracts also crank out the short proteins in response to invading pathogens. In addition to fighting bacteria, AMPs attack viruses, fungi and even cancer cells, so drugs designed to mimic them could have widespread medical applications, said Ramamo...

Keeping the body in sync -- The stability of cellular clocks

...orticoids, urine production, acid secretion in the gastrointestinal tract, and changes in liver metabolism. In the tiny volume of the cell, however, the chemical environment is constantly fluctuating. How is it possible for all these cell-autonomous clocks to sustain accurate 24-hour rhythms in such a noisy enviro...

Napoleon's mysterious death unmasked, UT Southwestern researcher says

...lso refutes rumors of arsenic poisoning, points to gastrointestinal bleeding as the likely immediate cause of death. ...al that resembled coffee grounds, an indication of gastrointestinal bleeding that likely was the immediate cause of death, Dr. Genta said. The most important descriptio...

E. coli bacteria migrating between humans, chimps in Ugandan park

...tourism in a park in western Uganda are exchanging gastrointestinal bacteria ?specifically Escherichia coli ?with local chimpanzee populations. And some of the E. coli strains migrating to chimps are resistant to antibiotics used by humans in Uganda. Their study will appear in the April 2007 issue of Biological Co...

Coated nanoparticles solve sticky drug-delivery problem

...c acids and other treatment directly to the lungs, gastrointestinal tract and cervicovaginal tract. ...

Early HIV treatment fails to restore memory T cells

...y found that the level of immune activation in the gastrointestinal tract remained elevated despite treatment. The ...hat vigilance is warranted for infections or other gastrointestinal problems resulting from prolonged impairment of immunity. These results also suggest that treatmen...

HIV-1 kills immune cells in the gut that may never bounce back

...tissue layer in the mucous membrane of a patient's gastrointestinal (GI) tract can lose up to 60 percent of its CD4 memory T cells -- immune cells responsible for recognizing invaders and priming other cells for attack. Intrigued, Martin Markowitz, an Aaron Diamond Professor at Rockefeller University and a staff scie...

Scientists discover toxin that causes gastro disease

...dentified a highly potent toxin that causes severe gastrointestinal illnesses, including food poisoning. The toxin, ...deactivates an essential component of cells in the gastrointestinal tract. "It is unique because it cuts an essential component of the cell machinery in half, the...

High-throughput oncogene mutation detection in human cancers by mass spectrometry-based genotyping

...e c-kit tyrosine kinase that drives development of gastrointestinal stromal tumors (GISTs), and certain EGFR mutations that are responsible for one form of lung cancer. These cancers can be treated with the targeted therapies Gleevec and Tarceva, respectively, which shut down the affected oncogenes. The test involve...

Nano-devices hold promise for early-stage cancer detection

...et organs systems such as the breast, pancreas and gastrointestinal tract and the relaying of information to an extern...ve imagers for routine screening of pancreatic and gastrointestinal tumors; sensors that can detect food- and water-borne pathogens. "The ultimate goal is to d...

Dragonfly's metabolic disease provides clues about human obesity

... high-fructose corn syrup often is associated with gastrointestinal distress, which may be a sign that fructose affects the gut microbial flora," said Marden. Another clue is that some AIDS patients, with compromised immune systems, have chronic problems with Cryptosporidium (a protozoan parasite closely related t...

Mayo Clinic study suggests that a central nervous system viral infection can lead to memory deficits

...roviruses, a virus associated with respiratory and gastrointestinal ailments; encephalitis, inflammation of the brain; myocarditis, inflammation of heart muscle; and meningitis. Other viruses in this family include those that cause foot-and-mouth disease, polio and hepatitis A. Researchers were intrigued by the po...

Pure carbon nanotubes pass first in vivo test

...urley, professor of surgical oncology and chief of gastrointestinal tumor surgery at M. D. Anderson. "We are particularly pleased that the fluorescent effect remains intact in our application, because this makes it easier to see where the nanotubes end up, and it opens the door to some exciting diagnostic and therape...

Got inexpensive contrast agent? Milk plays new role in imaging

...ing use of the dairy staple as a contrast agent in gastrointestinal imaging exams—with excellent results. The research...expect.? Computed tomography (CT) imaging of the gastrointestinal tract is often done for abdominal pain. When the condition calls for visualization of the small inte...

Crohn's disease gene identified

... disorders that cause abdominal pain, diarrhea and gastrointestinal bleeding and affect over one million Americans. Because IBD tends to run in families and is more frequent in certain ethnic populations, especially Ashkenazi Jews, scientists have long suspected a significant genetic component. According to senior...

Unique soybean lines hold promise for producing allergy-free soybeans

...ions, which range from harmless skin reactions and gastrointestinal irritation to more serious facial swelling, shortness of breath, difficulty swallowing and fainting. Avoiding soy products is becoming more difficult because of soy's use as fillers and components of many menu items. While people can read labels bef...

Green tea and the 'Asian Paradox'

...umors. Tea, according to studies, also can improve gastrointestinal function, alcohol metabolism, kidney, liver and pancreatic function, protect skin and eyes and alleviate arthritis. Tea has been used in managing and preventing allergies, diabetes, bacterial and viral infections, cavities, reduce or cure diseases wi...

New understanding of parasite cell structures may provide treatments for serious tropical diseases

... an inability to suck and/or swallow. Jaundice and gastrointestinal bleeding may also occur." The new research will open areas for further investigation. "Before this work in trypanosomes, there was no evidence that we could 'catch' peroxisome proteins moving to the ER" said Mensa-Wilmot. "With better understanding...

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