Showing posts with label SAN FRANCISCO. Show all posts
Showing posts with label SAN FRANCISCO. Show all posts

Lifestyle changes may cut Alzheimer's risk, says study

On the other hand...
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Posted: 20 July 2011

(AFP/File/Sebastien Bozon)
PARIS: Up to half of worldwide cases of Alzheimer's disease could be due to modifiable lifestyle risk factors, according to a study released Tuesday based on a mathematical model.

The theoretical analysis suggests that seven known behaviour-related risk factors, taken together, account for 50 per cent of the more than 35 million cases of dementia worldwide.

The findings "suggest that relatively simple lifestyle changes such as increasing physical activity and quitting smoking could have a dramatic impact" on the number of Alzheimer's cases over time, said lead researcher Deborah Barnes, a professor at the University of California in San Francisco.

The study, presented at an international Alzheimer's conference in Paris, is among the first attempts to link risk factors with the degenerative brain disease, which causes memory loss, disability and eventually death.

Only a tiny percentage of cases -- about one per cent -- are clearly caused by genetic factors.

Otherwise, while the process by which the disease attacks nerve cells in the brain is well known, its origins remain poorly understood.

Barnes and colleagues used a statistical method to measure the percentage of cases which might be attributable, at least in part, to each of the risk factors assessed.

Worldwide, they found that a low level of education was linked to 19 per cent of cases, smoking to 14 per cent, physical inactivity to 13 per cent, depression to 11 per cent, mid life hypertension and obesity to five and two per cent, respectively, and diabetes to two per cent.

When combined, these seven modifiable risk factors contribute to as many as 17 million Alzheimer's cases worldwide, and about three million in the United States, the study found.

While eliminating harmful lifestyle habits entirely is likely to remain a theoretical exercise, the more realistic goal of reducing them by a quarter would cut the number of cases globally by three million, the researchers calculated.

"The next step is to perform large-scale studies with people to discover whether changing these lifestyle factors will actually lower Alzheimer's risk," Barnes said in a statement.

The number of people afflicted by Alzheimer's is expected to more than triple by 2050 as populations across the planet age.

The disease is characterised by unwanted proteins that form plaque in some areas of the brain, ultimately destroying neurons and leading to irreversible brain damage.

Typical symptoms are memory loss, erratic behaviour and extreme agitation.

Alzheimer's affects 13 per cent of people over 65, and up to 50 per cent of those over 85.

-AFP/ac



Taken from ChannelNewsAsia.com; source article is below:
Lifestyle changes may cut Alzheimer's risk, says study


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California high court upholds same-sex marriage ban

Updated 2 hours, 39 minutes ago

Protesters gather outside the California Supreme Court in San Francisco on Tuesday.

SAN FRANCISCO, California (CNN) -- California's highest court upheld a voter-approved ban on same-sex marriages Tuesday but allowed about 18,000 unions performed before the ban to remain valid.

Supporters of November ballot initiative Proposition 8 hailed the ruling, but about 1,000 advocates of same-sex marriages who gathered outside the court building in San Francisco met the 6-1 decision with chants of "Shame on you."

"It is impossible to square the elation that we felt just a year ago with the grief that we feel today," said Kate Kendell, head of the National Center for Lesbian Rights. "And it is impossible to reconcile the court's ruling from a year ago with its upholding of Proposition 8 today."

The same court, dominated by Republican appointees, ruled in May 2008 that the state constitution guaranteed gay and lesbian couples the "basic civil right" to marry. Voters responded in November by approving the marriage ban by a margin of 52 to 48 percent.

Opponents of the ban argued that it improperly altered California's constitution to restrict a fundamental right guaranteed in the state charter. Its supporters argued that Californians long have had the right to change their state constitution through ballot initiatives.

Tuesday's ruling found that the proposition restricted the designation of marriage "while not otherwise affecting the fundamental constitutional rights of same-sex couples," as Chief Justice Ronald George wrote.

In a dissenting opinion, Justice Carlos Moreno -- the court's only Democratic appointee -- wrote that the decision "is not just a defeat for same-sex couples, but for any minority group that seeks the protection of the equal protection clause of the California Constitution."

The decision sparked protests in San Francisco, Los Angeles and San Diego.

"It's nice that my marriage is still intact, but that's not the point," said Kathleen White, who was among those awaiting the ruling in San Francisco. "The point is that everybody should have the same civil rights across the board."

But Miles McPherson, pastor of the Rock Church in San Diego, said the court "did the right thing."

Voters in 28 other states have approved constitutional bans on same-sex marriages, and none has been rejected, he said.

"God didn't create the family that way," McPherson said. "You can't have a family with a mother and a mother, because [children] need a mother and a father to nurture their personality and their character."

Tony Perkins, president of the conservative Family Research Council, said the ruling "should encourage pro-family activists not only in California but across the country." But he said that by preserving marriages performed before the ban, the justices could have opened a door to a possible appeal to the U.S. Supreme Court.

It was unclear whether advocates had an avenue to appeal Tuesday's ruling, however. And Dennis Herrera, San Francisco's city attorney, said the fight for same-sex marriage rights would most likely go on "in the electoral arena."

"Today we're faced with a disappointing decision," Herrera said. "But I think we also know it could have been worse."

A new effort, dubbed Yes on Equality, has begun working to place an initiative on the 2010 ballot that would repeal Proposition 8.

State justices left unaddressed whether same-sex marriages performed in other states before the ban was adopted would be recognized in California, and advocates would have to argue that the measure violated their rights under the U.S. Constitution for the U.S. Supreme Court to take up the case.

California took its first steps toward recognizing same-sex marriages in 2004, when San Francisco began issuing marriage licenses to gay and lesbian couples. iReport.com: React to court decision and share photos, video

Gov. Arnold Schwarzenegger, who opposed the initiative, praised the court for leaving the previous marriages intact and urged opponents of the decision to respond "peacefully and lawfully."

"While I believe that one day either the people or courts will recognize gay marriage, as governor of California, I will uphold the decision of the California Supreme Court," Schwarzenegger said in a written statement.

Four states -- Connecticut, Maine, Massachusetts and Iowa -- currently allow same-sex marriages. A Vermont law making such marriages legal will take effect in September. And the District of Columbia voted May 5 to recognize same-sex marriages performed elsewhere, though it does not itself give marriage licenses to same-sex couples.

From CNN.com; see the source article here.


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