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Tuesday, April 13, 2010 (15:49:58) |
| Tags : Omega-3, Fatty Acids, Diet |
Omega-3 fatty acid in diet can make men fertile |
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| Washington, April 13: The introduction of omega-3 fatty acids in the diet may help in restoring fertility in males, a new study says.
The three most nutritionally important omega-3 fatty acids are alpha-linolenic acid, eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA).
"In our experiment, we used 'knockout' mice that lacked the gene responsible for an enzyme important in making docosahexaenoic acid (DHA)," said an expert.
"In the absence of DHA, male mice are basically infertile, producing few if any misshaped sperm that can't get where they need to go," he said.
"We looked at sperm count and shape and tested the breeding success rate, and the mice lacking DHA simply were not able to breed," said an expert.
In the DHA-deficient knockout mice, sperm counts were extremely low. The sperm that were produced were round instead of elongated and they were unable to move well, he said.
But, when DHA was introduced into the diet, fertility was completely restored. "It was very striking. When we fed the mice DHA, all these abnormalities were prevented," he said.
This is the first time that the importance of DHA to male fertility has been shown this directly, although some studies have suggested that male fertility patients with low sperm counts and less motile sperm tend to have low levels of this fatty acid.
He said our body must make DHA from dietary alpha-linolenic acids, the parent compound of the omega-3 fatty acid family. Vegetable oils, including soybean and canola oil, are good sources of alpha-linolenic acid.
The team plans to continue focusing on this omega-3's effects on fertility. But he cautioned that there are still things they don't understand. (IANS) |
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