Tag: "weakening" at biology news
Bone marrow donor cells present in muscle fibers of boy with MD years after transplant
...called the dystrophin gene, it shows up as general weakening
of the muscles, starting with those in the limbs a...urvive beyond their late twenties, commonly due to weakening
muscle fibers of vital organs such as the lungs which causing fatal pneumonia or other complications...
Deformed frogs form when parasites and pesticides combine
... combination of their infection by parasites and a weakening
of their immune system caused by exposure to pesticides, according to a study by Penn State researchers to be published in the 9 July issue of the Proceedings of the National Academy of Sciences. The research includes the first experimental studies...
Researchers find gene for rare disorder that paralyzes children's legs
...al cord break down, HSP can progress to a complete weakening
of the legs, and, in some cases, to more severe problems. It can strike at any age, from infancy to old age, and depending on the mode of inheritance can affect parents and some or all of their children at different stages of life. Fink and his colle...
Researchers uncover a piece of nature's secret nitrogen formula
...s of nitrogen) floating in the air and stretch it, weakening
the bond between the two nitrogen atoms. This makes the nitrogen more likely to link up with hydrogen to create ammonia (NH3)-the useful form with one nitrogen atom combined with three hydrogen atoms. "We've shown that this type of iron can stretch n...
Space Research Briefs - Sept./Oct. 2001
...itself against disease. Potential problems include weakening
of the immune system and activation of dormant viruses present in the body. "We're gathering data on viral levels in normal populations and in groups undergoing more stressful, space-like conditions," said Dr. Janet Butel of the National Space Biomed...
University of Pittsburgh reports best gene delivery to date of protein missing in Duchenne Muscular Dystrophy
...3,500 boys worldwide. It causes progressive muscle weakening
and death, usually before age 20. No effective therapy exists for the disease. In boys lacking dystrophin, muscles function abnormally, at first enlarging, then degenerating so that fat and scar tissue take over. Boys with DMD lose muscle function th...
Physicians have seen a rise in the number of infants suffering from rickets
...gator in the study. Rickets is the softening and weakening
of the bones due to the body's inability to absorb calcium, usually because of a vitamin D deficiency. A healthy person gets vitamin D from two sources: food and sunlight. Thirty African-American infants were included in the study, beginning in 1988...
Memory mechanism found at nerve cell connections in the brain
...sory-driven experiences. Synaptic strengthening or weakening
also occurs during the brain's development. Synapses are the connections between neurons, or nerve cells. Reporting in today's Science, researchers from the Howard Hughes Medical Institute (HHMI) and Brown Univers...
Younger people are at greater risk for alcohol problems
...e impulse-control problems, most likely by further weakening
impulse control. "This paper not only confirms that the age of onset for alcohol problems and alcoholism is marching down, getting younger and younger," said Hesselbrock. "It also shows that the risk for women of developing these disorders, partic...
Plakin proteins brace nerve axons and allow for the transport of neurotransmitter vesicles
...scientists interested in skin disorderscaused by a weakening
of the cytoskeleton have long known that a group ofbolt-like proteins called plakins, brace the intermediate filaments. Of thethree filamentous systems of the cytoskeleton, intermediate filaments have adiameter that places them between the microfila...
The Body's Anticancer Weaponry Backfires In Old Age
...he protein mightaccount, at least in part, for the weakening
of the immune system that alsocomes with age. He and his colleagues collected blood samples from 15 retiredprofessors between the ages of 65 and 95 and from 15 students and staff between20 and 29. From the samples, they cultured two types of T cells,...
Research Shows Wrong Activity Worse Than No Activity In Developing Brain
...the cataract is removed. For some time, the weakening
between connections in the brain following"one eye...entional view, theresearchers found that the weakening
between connections caused by eyelid closure was far moresevere than the weakening
caused by b...
Gene Identified For Heart Defect That Causes Sudden Death In Young People
... occurswithin hours -- and heart failure, a severe weakening
of the heart's ability topump blood. Roberts and his colleagues located the ARVD gene by studying the genetic familytree of a North American family through seven generations. They had informationon more than 200 members of the family, including 10 w...
Study Shows: Just Say NO To Bone Loss
...edaway. This leads to pits in the bone matrix and weakening
of bone. After adding antibody, biochemical tests revealed that another free radical,superoxide, was elevated, and, following the burst of superoxide production,there was an increase in NO. This was followed by decreases in bone resorptionand produc...