May 25, 2011

Pelvic Widening Happens

1 Getting Wider As You Age? It’s Not Just Fat

Skeletal enlargement, thought to stop by about age 20 along with skeletal maturity, continues throughout life says a study that finds that, while we stop growing taller, we continue to widen into old age. "Until recently we assumed this was caused simply by an increase in body fat. Our findings suggest that pelvic growth may contribute to people becoming wider and having a larger waist size as they get older, whether or not they also have an increase in body fat," says senior author Dr. Laurence E. Dahners, UNC. A one-inch differential was recorded in the pelvic widths of volunteers, ages 20 to 79. This could lead to a three-inch increase in waist size and a significant amount of body fat over a person’s lifetime, say researchers who used CT scans to confirm their findings.

More at ScienceDaily.com | Posted 6 years ago by Melody Lesser

Previously: Facial Aging Attributed to Bone Loss

Tags: Aging, Body Fat, Waist Size, Weight Gain, Pelvic Widening, Gaining Weight with Age, Dr. Laurence E. Dahners, University of North Carolina at Chapel Hill, Skeletal Enlargement, Skeletal Growth

Comment on This | Was this Interesting? Yes! (47%) / No! (53%)

Killzone Rewards Violence

2 Violent Video Games Reduce Violence Response

Playing violent video games can make players less responsive to violence, causing an increase in aggression, find researchers from the University of Missouri. "Call of Duty," "Hitman," "Killzone" and "Grand Theft Auto" are a few of the video games used in the study of 70 young adults. "Many researchers have believed that becoming desensitized to violence leads to increased human aggression. Until our study, however, this causal association had never been demonstrated experimentally," comments Bruce Bartholow, associate professor of psychology at MU. Bartholow says that violent video games encourage active participation in violence, and may reward players for engaging in violence. The findings will be published in Journal of Experimental Social Psychology.

More at Eurekalert | Posted 6 years ago by Peggy Rowland

Previously: Video Games Help CF Patients Clear Airways

Tags: Hitman, University of Missouri, Violent Behavior, Effect Violent Video Games, Bruce Bartholow, Grand Theft Auto, Call of Duty, Killzone, Increase in Aggression, Desensitized to Violence, Journal of Experimental Social Psychology

Comment on This | Was this Interesting? Yes! (44%) / No! (56%)

Divides B Cells, Kills Neurons

3 Protein Linked to Alzheimer's and Leukemia

Previous research found that the protein c-Abl, which is constitutively turned on in B cells in patients with chronic myeloid leukemia (CML), is also present in the plaques that accumulate in the brains of those with Alzheimer’s. To determine if c-Abl effects on neurons, researchers activated it in the hippocampal and neocortical neurons of mice which caused a large amount of brain cell death. The hippocampus was particularly affected and the male mice died sooner than the females. In CML, the c-Abl gene allows the B cells to divide uncontrollably. Gleevec is used to treat CML by preventing that cell division but it does not cross the blood brain barrier so could not treat Alzheimer’s. Researchers want to look for other compounds that can get into the brain and turn the gene off.

More at Science Daily | Posted 6 years ago by Kristie Hayes

Previously: Amyloid Plaques in Alzheimer’s May Begin in Liver, Asthma Drug Zileuton Might Help Manage Alzheimer’s, Metformin Fights Alzheimer’s in Mice

Tags: Alzheimer's, Beta-Amyloid Plaques, Blood-Brain Barrier, Chronic Myeloid Leukemia, CML, Gleevec, Hippocampus, C-Abl, Neocortex

Comment on This | Was this Interesting? Yes! (51%) / No! (49%)

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