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Tag: "affected" at biology news

HIV exploits competition among T-cells

... separate winner for each strain is picked in each affected lymph node before immunodominance can come into play. "In our simulations, this strategy appears effective at all but eliminating competition among T cells," Deem said. "As a result, HIV remained in a state of permanent latency and was never able t...

Soil nutrition affects carbon sequestration in forests

...within forest systems and how this partitioning is affected by environmental conditions."...

Cellular traffic backups implicated in skeletal malformations

...cts, kinked fins and shortened body. The pathway affected by the crusher mutation is key to transporting pro...ells, just why chondrocytes are the only cell type affected by the mutation remains unclear. "The fact that it affects only chondrocytes is very strange," Kn...

Brain protein improves stroke symptoms in rats, even when injected after 3 days

...teract neurone death, reduces the size of the area affected by a stroke by a third when injected four hours af... the impact of G-CSF on the size of the brain area affected by the stroke, which is identified by the presence of dead neurons. In this model, the animals were ...

Gene therapy for hereditary lung disease advances

...medical authorities suspect less than 5 percent of affected individuals are diagnosed, often not until they are in their mid- to late-30s, after extensive lung damage occurs. Shortness of breath, wheezing, chronic cough and recurring chest colds are signs of the disease. It is important that alpha-1 patien...

Reading Shakespeare has dramatic effect on human brain

...ng (FMI) to test which areas of the brain are most affected and the kind of impact it could have in maintaining healthy brain activity. Professor Davis added: "This interdisciplinary work is good for brain science because it offers permanent scripts of the human mind working moment-to-moment. It is good fo...

Changing length of days reverses how estrogen affects aggressiveness in mice

... study was that the length of exposure to daylight affected how estrogen interacted ?or didn't interact ?with ... long days. "So the differences in how estrogen affected behavior in long days compared to short days could not be explained by the hormone using different r...

A wolf in sheep's clothing: Plague bacteria reveal one of their virulence tricks

...teins, and then looked at how the mutated bacteria affected human cells compared to the original wild-type Yersinia. His results confirmed the hypothesis from the structural study: While the wild-type YpkA wreaked havoc on their host cells' cytoskeletons, the mutant left the actin-based skeleton intact. Then...

Researchers discover new gene responsible for brittle bone disease

...ed beginning before birth. The number of Americans affected is unknown, but estimates range from 20,000 to 50,...can occur and makes possible new tests to identify affected children and provide them with added medical support," Boyce said. "There may be up to 15 percent of...

Buildup of damaged DNA in cells drives aging

... human progeria, a rare inherited disease in which affected individuals age rapidly and die prematurely. "The... 90 percent correlation between all other pathways affected in the progeroid mice and the older mice. "Because there were such high correlations between the...

Humpback whales have brain cells also found in humans

...ught to be involved in cognitive processes and are affected by Alzheimer's disease and other debilitating brain disorders such as autism and schizophrenia. Spindle neurons were also found in the same location in toothed whales with the largest brains, which suggests that they may be related to brain size. ...

Insulin receptor stops progression of Alzheimer's disease

...s were reduced or nearly disappeared. The agonists affected different regions of the brain, with PPAR delta producing the most striking effect in preserving the hypothalamus and temporal lobes, areas of the brain responsible for memory, learning, and behavior. In these brain regions, PPAR alpha and PPAR gamma...

Circadian gene helps the brain predict mealtime

...of timing between organs by scheduled meals is not affected by the Period 2 mutation, indicating that this gene is not crucial for scheduled food availability to affect the physiological coordination of tissues outside the central nervous system. The authors of the study point out that the work they repor...

New biologic treatment for tennis elbow may replace surgery for chronic sufferers

... which are then re-injected into the tendon of the affected elbow provides more relief than more commonly-used...injection of platelet-rich plasma (PRP) into their affected elbow. (Platelets are blood components responsible for the formation of clots in response to injury...

Fragmentation rapidly erodes Amazonian biodiversity

...species that live in the rainforest will surely be affected too.? ...

Jefferson researchers uncover new way nature turns genes on and off

...ne rearrangements in utero. MLL, the gene that is affected in humans, corresponds to Trithorax in fruit flies. "ALL is thought to be a disease of misregulated HOX genes," says Dr. Mazo. HOX gene groups have long been known to be "transcriptional regulators" that control the multitude of genes involved in...

Second opinion yields treatment changes for half of patients

...meant a change in diagnosis, for other patients it affected the aggressiveness of their tumor. U-M established one of the first multidisciplinary breast care centers in 1985 to provide comprehensive diagnosis and treatment for women with benign or malignant disease. U-M currently has multidisciplinary cli...

When nerve cells can't make contact

...s of function in the genes and triggered autism in affected patients. Bourgeron' TM s work sent a shock wave through neuro-scientific institutes worldwide, as the a NLGN genes were not unknown. They are responsible for the creation of two proteins, neuroligin-3 and neuroligin-4, which are considered to play a...

Report highlights change in Canada's forests

...tain pine beetle, and help communities and workers affected by the issues facing the forest industry." The annual report is rounded out by statistics on forest cover, employment, exports, production and trade. It is available in English and French online at www.nrcan.gc.ca/cfs/national/what-quoi/sof . ...

Biotech cotton provides same yield with fewer pesticides

... Carrière said, "There were lots of factors that affected biodiversity in this study. Transgenics were not o...estern tarnished plant bugs. To see what factors affected insect biodiversity in the cotton fields, the researchers used a type of statistical analysis called...

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