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Tag: "performed" at biology news

Forgotten by evolution?

... protein, could only be shown after the scientists performed what is known as epigenetic reprogramming (epigenetic reprogramming is a synonym for heritable modifications of the DNA others than alterations of the base sequence like DNA-methylation and changes of the chromatin). In the differentiation toward sk...

Argonne researchers confirm lead in Beethoven's illness

...he cause of his illnesses and death." Researchers performed the elemental X-ray fluorescence analysis at an Advanced Photon Source X-ray Operations and Research beamline. "The APS is the best machine in the country to perform the research in this detail," said Ken Kemner, one of the Argonne researchers invol...

Feeling old?

...gs straight again. This is the finding of research performed by Lydie Combaret, Dominique Dardevet and colleagues at the Human Nutrition Research Centre of Auvergne, INRA, Clermont-Ferrand, France. After the age of 40, humans start loosing muscle at around 0.5?% per year. Immediately after a meal degradation ...

UCLA imaging study of children with autism finds broken mirror neuron system

...ction and while he or she observes the same action performed by others. Neuroscientists believe this observatio...earchers they could perform the tasks. Both groups performed equally well. Normal brain activity in areas of the brain involving sight and facial movements indic...

Men and women differ in brain use during same tasks

...nal NeuroImage. The study involved volunteers who performed memory tasks, verbal tasks, visual spatial tasks and simple motor tasks while their brain activity was monitored with functional Magnetic Resonance Imaging (fMRI) technology. "The results jumped out at us," said Emily Bell, a U of A PhD student in p...

Marsupial genome reveals insights into mammalian evolution

...omplex," which no longer exists in modern genomes, performed the MHC functions in ancestral mammals. "Understanding the immune system of marsupials and monotremes will help us to conserve our native species," Belov says. ...

3D ultrasound device poised to advance minimally invasive surgery

...human endoscopic surgeries in which operations are performed through tiny "keyhole" incisions. If the probes p...ght be cheaper and less traumatic as they could be performed in less time and, in some cases, without the need of general anesthesia, he said. Duke developed t...

Rare Tibetan antelope listed as endangered

...human endoscopic surgeries in which operations are performed through tiny "keyhole" incisions. If the probes p...ght be cheaper and less traumatic as they could be performed in less time and, in some cases, without the need of general anesthesia, he said. Duke developed t...

Neurons find their place in the developing nervous system with the help of a sticky molecule

...ced the MDGA1 gene. To do this, they painstakingly performed in utero surgery on embryonic mice ?injecting an interfering RNA molecule into the lateral ventricle, a fluid-filled space next to the neocortex. Application of an electrical current forced the RNA into neural progenitor cells, and it was subsequentl...

New Rotavirus vaccine joins routine infant immunization schedule

...ountries--one of the largest clinical trials to be performed by a pharmaceutical company. The company's data showed that the vaccine prevented 98 percent of severe cases of rotavirus gastroenteritis and 74 percent of routine cases, compared to a placebo. Furthermore, the vaccine showed no increased risk of int...

Genes involved in cell growth and cell division identified

...ing bioinformatics. The screening of the genes was performed in High Throughput Center of the University of Helsinki. The genome sequencing projects have revealed a large number of genes with unknown functions. The current study lead by professor Taipale identified a number of such functionally unannotated ge...

Mice studies illustrate potential of chimp/human antibodies to protect against smallpox

...a virus. The test involving the smallpox virus was performed at the Centers for Disease Control and Prevention in Atlanta. The researchers then tested the effectiveness of the hybrid antibodies in mice. The control group--mice that were given the vaccinia virus but did not receive the antibodies--experienced ...

Red Tide causes sea turtle die-off in El Salvador

...ted in the second week in December. Dr. White then performed post-mortem examinations on one of the turtles, while simultaneously training Salvadorian colleagues in tissue collection techniques. Samples were then sent to Florida's Fish and Wildlife Research Institute, where technicians then found high levels o...

Unique equine cataract surgery offered on routine basis

... outcome of TC's surgery. Surgery is quite rarely performed in the UK on horses with cataracts as it carries risks but if I had not agreed to this pioneering operation the only other course of action would have been to have my horse put down. "As a showjumping horse, it was vital to have TC's eyesight re...

UCSB researchers discover shape matters to macrophages

...ent solely on its size. Previous studies have been performed only with spherical samples because it was presumed that size was the main issue in phagocytosis, and because fabrication of non-spherical particles of controlled dimensions has been difficult. The researchers used macrophages from alveolar (lung sa...

Aspirin reduces cardiovascular risks in men and women -- but differently

...he Journal of the American Medical Association. He performed much of the research while at Beth Israel Medical Center, New York, under senior author cardiologist David Brown, M.D. "This is good news because many of the past studies of the effect of aspirin in preventing cardiovascular events looked only at me...

Study in Science holds promise for a new approach to drug therapy

...nd have its effect inside the cell. Smrcka's team performed a computer-simulated experiment to see which drug-like molecules from an existing database of 1990 known structures would bind tightly to the hotspot, and to rank them. In general,tight binding suggests that a drug candidate has the potential to rema...

Faster immune system testing set to improve poultry quality

...s of the immune system in poultry. The test can be performed in two days on blood samples from poultry houses, using equipment already available in poultry diagnostic laboratories. Current immune system tests are imprecise, expensive and take weeks ?providing information too late to be useful. Combining this t...

Study: Competition for sex is a 'jungle out there'

...versity in St. Louis, and their collaborators have performed an exhaustive global analysis of more than 1,000 pollination studies which included 166 different plant species and found that, in areas where there is a great deal of plant diversity, plants suffer lower pollination and reproductive success. For so...

Weizmann Institute suggests that immune cells help to maintain cognition and brain cell renewal

... mice possessing the relevant CNS-specific T cells performed better in some memory tasks than mice lacking CNS-specific T cells. Based on these findings, the scientists suggest that the presence of CNS-specific T cells in mice plays a role in maintaining learning and memory abilities in adulthood. Schwartz p...

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