Tag: "resistance" at biology news
Edible fish feasts beats malaria
The emerging threat of pesticide resistance
means that biological malaria control methods are once again in vogue. New research published in the online open access journal BMC Public Health shows how Nile tilapia, a fish more commonly served up to Kenyan diners, is a valuable weapon against ma...
Grapes, soy and kudzu blunt some menopausal side effects
...can blunt cognitive loss, hypertension and insulin resistance
in an experimental model. These and related s...insulin and leptin in this animal model of insulin resistance
(a precursor to type 2 diabetes). Glucose tolerance and sensitivity are improved some 20 percent in ...
Story tips from the US Department of Energy's Oak Ridge National Laboratory, August 2007
...imes the normal level while not compromising their resistance
to corrosion. This hardened surface has been implemented in pump impellers undergoing severe wear operation at the Sonoco paperboard plant in Newport, Tenn. The impellers in the plant are working at three times the life of regular impellers with an a...
Chickadee, nutchatch presence in conifers increases tree growth, says CU-Boulder study
...ion distinctive odors, have been implicated in the resistance
of trees to parasites and plant-eating insects, he said. By removing insects, the birds indirectly altered the terpene composition of pine tissues, said Linhart. The alteration of terpene "flavor" can have wide ranging effects, since terpenes inf...
Handicapping tuberculosis may be the way to a better vaccine
...lion die each year from this disease. In addition, resistance
to current treatments is becoming increasingly common, making an effective vaccine all the more crucial. Were very excited because this is the first vaccine strain weve ever seen that is significantly better than BCG, said Jacobs. Jacobs worked in ...
Nanotechnology helps scientists make bendy sensors for hydrogen vehicles
...en hydrogen and the SWNTs to enhance the change of resistance
of the device when it is exposed to hydrogen molec...rogen sensors show a change of 75 percent in their resistance
when exposed to hydrogen at a concentration of 0.05 percent in air. The devices can detect the prese...
Investigating antibiotic use in acute care patients
...hin said. "They also maintain a pool of antibiotic resistance
genes within the microbial community of patients t...de in July that: "The current theory of antibiotic resistance
is that the fittest bacteria, that is, those carrying genes for resistance, are the most likely to s...
Strength of connections between brain regions may affect an adolescent's response to peer influence
...vior are more interconnected in children with high resistance
to peer influence than those with low resistance, ...is team observed 35 10-year-olds with high and low resistance
to peer influence, as determined by a questionnaire. The researchers then showed the children video ...
New clue into how diet and exercise enhance longevity
...and accelerates disease progression. Thus, insulin resistance
and higher insulin levels might be the environmental influences that promote these diseases, he said....
New role for protein in fat cells may improve understanding of obesity and diabetes
...rtant fats in fat cells, which can lead to insulin resistance
a major contributor to diabetes and the abnormal release of cytokines, proteins that stimulate the immune system, Morton says. This unexpected contribution of CETP provides a new understanding of how our body stores and regulates fats and of condit...
JCI table of contents: July 19, 2007
...2 diabetes are frequently characterized by insulin resistance
a condition in which normal amounts of insulin ar... blood glucose levels. While the causes of insulin resistance
are not completely defined, previous studies have suggested that an atypical protein kinase C (aPKC)...
Charting ever-changing genomes
...ions, while genes that vary widely such as disease resistance
genes are under strong positive selection. We covered both ends of the spectrum and ended up with a top list of no changes and a top list of a lot of changes, explains Borevitz. All the data have been placed in a publicly accessible database and now ...
Study explains how pathogens evolve to escape detection
...nding why some varieties have more durable disease resistance
is important to the development of more sustainable agricultural practices, he said. The study by Cornell and BTI scientists describes how a single bacterial protein, AvrPtoB, which is injected by P. syringae into plant cells through a kind of mole...
University of Colorado licenses two influenza virus detection discoveries to Quidel Corp.
...ts the two most common factors contributing to the resistance
of influenza to drug treatment. The ability to identify antiviral susceptibility is important for global monitoring of influenza patterns, and for directing physicians toward better treatment decisions. Preliminary studies demonstrate a 95% succes...
Malaria -- Effective insecticide-repellent synergy against mosquito vectors
...rs in May and June in the rice-fields. It shows no resistance
to pyrethroids. The second emerges in September an...er in puddles left by monsoon rains. These do show resistance
to these insecticides. As expected, the usual pyrethroid-treated nets turned out to be effective onl...
Tips from the Journals of the American Society for Microbiology
...ed against H. pylori infection, however increasing resistance
as well as high treatment costs and recurrence of infection emphasize the need for an effective, long-lasting vaccine. In the study mice were immunized in four groups: orally alone, intramuscularly alone, orally followed by intramuscularly, and in...
Metabolic syndrome -- don't blame the belly fat
...iversity School of Medicine has found that insulin resistance
in skeletal muscle leads to alterations in energy ...set the stage for the metabolic syndrome. Insulin resistance
is a condition in which the body's cells become resistant to insulin, a hormone secreted by the panc...
Outwitting pesky parasites
... example, if a breeder wants to select plants with resistance
to root-knot nematode based upon a phenotypic eval...creening to determine whether or not the root-knot resistance
genes are present in soybean crops, marker assisted selection can inform breeders about the presence...
Unraveling the physics of DNA's double helix
... bases to break, the thymine chains' showed little resistance
to extension and no plateau. Based on the known structure of the single stranded DNA molecules, they had expected to see only one such plateau as the stacking forces severed. Exactly what happens at the molecular level at each of the two plateaus w...
JCI table of contents: July 12, 2007
... of EAE in these animals, followed by recovery and resistance
to any reinduction of disease. The authors then went on to characterize the Ac19specific T cells present during the induction, onset, and recovery from disease. They identified two distinct subsets of T cells, or clonotypes, soon after immunization a...
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