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Which parent do you get dementia from?

More Evidence That Alzheimer's Disease May Be Inherited from Your Mother. Results from a new study contribute to growing evidence that if one of your parents has Alzheimer's disease, the chances of inheriting it from your mother are higher than from your father.

aan.com - Evidence That Alzheimer's Disease May Be Inherited from Your Mother

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EMBARGOED FOR RELEASE UNTIL 4 PM ET, February 28, 2011

More Evidence That Alzheimer’s Disease May Be Inherited from Your Mother

ST. PAUL, Minn. -

Results from a new study contribute to growing evidence that if one of your parents has Alzheimer’s disease, the chances of inheriting it from your mother are higher than from your father. The study is published in the March 1, 2011, print issue of Neurology®, the medical journal of the American Academy of Neurology. “It is estimated that people who have first-degree relatives with Alzheimer’s disease are four to 10 times more likely to develop the disease themselves compared to people with no family history,” said study author Robyn Honea, DPhil, of the University of Kansas School of Medicine in Kansas City. For the study, 53 dementia-free people age 60 and over were followed for two years. Eleven participants reported having a mother with Alzheimer’s disease, 10 had a father with Alzheimer’s disease and 32 had no history of the disease in their family. The groups were given brain scans and cognitive tests throughout the study. The researchers found that people with a mother who had Alzheimer’s disease had twice as much gray matter shrinkage as the groups who had a father or no parent with Alzheimer’s disease. In addition, those who had a mother with Alzheimer’s disease had about one and a half times more whole brain shrinkage per year compared to those who had a father with the disease. Shrinking of the brain, or brain atrophy, occurs in Alzheimer’s disease. “Using 3-D mapping methods, we were able to look at the different regions of the brain affected in people with maternal or paternal ties to Alzheimer’s disease,” said Honea. “In people with a maternal family history of the disease, we found differences in the break-down processes in specific areas of the brain that are also affected by Alzheimer’s disease, leading to shrinkage. Understanding how the disease may be inherited could lead to better prevention and treatment strategies.” The study was supported by the National Institute on Aging and the National Institute of Neurological Disorders and Stroke. The American Academy of Neurology, an association of more than 22,500 neurologists and neuroscience professionals, is dedicated to promoting the highest quality patient-centered neurologic care. A neurologist is a doctor with specialized training in diagnosing, treating and managing disorders of the brain and nervous system such as Alzheimer’s disease, stroke, migraine, multiple sclerosis, brain injury, Parkinson’s disease and epilepsy. For more information about the American Academy of Neurology, visit http://www.aan.com.

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What personality type are most lawyers?

Over half of all lawyers fall into just a quarter of the Myers Briggs personality types – with INTJ (an introvert type) five times more common among lawyers than the general populationi.

unispace.com - Lawyers and their personalities - Unispace

Lawyers aren’t famous for their collaborative working style: most are introverts, after all. So we think personality typing should influence the design of their workplaces. Over half of all lawyers fall into just a quarter of the Myers Briggs personality types – with INTJ (an introvert type) five times more common among lawyers than the general populationi. While extroverts may be exhilarated by time spent with others, sharing and developing ideas or client lists, the very thought can make an introvert shudder. It’s not that they can’t; it’s just not preferred, and it can be draining.

“Other professions collaborate, but we don’t.”

– Jill Switzerii, Californian lawyer

IP lawyer Airina Rodriguesiii is a self-confessed introvert: “I have my own office. I’m not at a tech company or a startup that prides itself on having an open office. I have privacy, stability and I can focus on work.” And yet most litigation lawyers are extrovertsiv.

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