标题: How Big Is Your Brain? Its Size May Protect You From Memory Loss [打印本页] 作者: 张立涛 时间: 2012-5-8 08:52 标题: How Big Is Your Brain? Its Size May Protect You From Memory Loss How Big Is Your Brain? Its Size May Protect You From Memory Loss
From autopsies, researchers have long known that some people die with sharp minds and perfect memories, but their brains riddled with the plaques and tangles of Alzheimer's disease. New research shows that those people have a larger part of the brain called the hippocampus.
A new study suggests that a larger hippocampus may protect some people from the effects of Alzheimer's disease-related brain changes.
"This larger hippocampus may protect these people from the effects of Alzheimer's disease-related brain changes," said study author Deniz Erten-Lyons, MD, with Oregon Health and Science University in Portland, and member of the American Academy of Neurology. "Hopefully this will lead us eventually to prevention strategies."
For the study, researchers evaluated the brains of 12 people who had sharp memories and thinking skills at the time of death, but whose autopsies showed a high amount of Alzheimer's plaques. Their brains were compared to those of 23 people who had the same amount of plaques in their brains, but had been diagnosed with Alzheimer's disease before death.
Researchers found the volume of the hippocampus part of the brain was 20 percent greater in the cognitively intact group compared to the Alzheimer's disease group with dementia. There were no other demographic, clinical or pathological differences between the groups and the results remained the same regardless of gender, age, and total brain volume.
作者: sdccumcm 时间: 2012-6-13 20:21
学习了~~~~~~~~~~~作者: hbdkfk2 时间: 2012-8-19 17:07
好多英文啊！！！！！！！！！！！作者: pcyaoqiang 时间: 2013-7-28 18:36
支持一下啊！！
