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维生素D缺乏可能引起勃起功能障碍

来源:生物谷 2015-11-17 15:53

2015年11月17日讯/生物谷BIOON/一项新的研究表明,维生素D含量低可能与勃起功能障碍有关。

研究人员分析了3400多个20岁以上没有心脏病的美国男性。百分之三十的人缺乏维生素D,这意味着每毫升血液中“日光维生素”的水平低于20毫微克。16%的人有勃起功能障碍。

研究发现,35%的男性维生素D缺乏伴有勃起功能障碍,相比之下,29%的人没有勃起功能障碍。

“维生素D缺乏易于通过改变生活方式来纠正,包括正确的锻炼,饮食改变,维生素补充剂和温和的阳光照射。”Erin Michos博士说。

研究人员得出结论是与有充足维生素D水平的人相比较,维生素D缺乏的男性有32%的可能性是虚弱无力的。

研究人员强调他们的发现只是观察性研究,不证明因果关系,还需要更多的研究来确定低维生素D水平和勃起功能障碍是否有直接的联系。如果是这样的话,他们说这可能会产生新的治疗方法。

“检查维生素D水平可能是测量勃起功能障碍风险一个有用的工具,”Michos说。“最相关的临床问题就变成了纠正维生素D缺乏是否可以降低风险,帮助恢复勃起功能。”

研究人员说,约40%的年龄超过40岁的男性与40%的70岁以上的男性无法达到和维持勃起状态。据美国疾病控制和预防中心说,维生素D缺乏会影响多达40%的成年美国人。(生物谷Bioon.com)

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Researchers analyzed data from more than 3,400 American men, age 20 and older, who did not have heart disease. Thirty percent were vitamin D deficient, which means their levels of the "sunshine vitamin" were below 20 nanograms per milliliter of blood. And 16 percent had erectile dysfunction.
Vitamin D deficiency was present in 35 percent of men with erectile dysfunction, compared with 29 percent of those without erectile dysfunction, the study found.
"Vitamin D deficiency is easy to screen for and simple to correct with lifestyle changes that include exercise, dietary changes, vitamin supplementation and modest sunlight exposure," study lead investigator Dr. Erin Michos, an associate professor of medicine at Johns Hopkins University School of Medicine, said in a university news release.
The researchers concluded that men with vitamin D deficiency were 32 percent more likely to be impotent than those with sufficient vitamin D levels. This association held even after the study authors accounted for other factors associated with erectile dysfunction, such as drinking, smoking, diabetes, higher blood pressure, inflammation and certain medications.
The researchers emphasized that their findings are observational and don't prove cause and effect. They said more research is needed to determine if there's a direct link between low vitamin D levels and erectile dysfunction. If that's the case, they said it could lead to new treatment approaches.
"Checking vitamin D levels may turn out to be a useful tool to gauge ED risk," Michos said. "The most relevant clinical question then becomes whether correcting the deficiency could reduce risk and help restore erectile function."
About 40 percent of men older than 40 and 70 percent of those older than 70 are unable to attain and maintain an erection, the researchers said. Vitamin D deficiency affects up to 40 percent of adult Americans, according to the U.S. Centers for Disease Control and Prevention.
The study was presented Tuesday at the American Heart Association's annual meeting in Orlando, Fla. Research presented at meetings should be considered preliminary until it's published in a peer-reviewed medical journal.

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