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Report That Delayed Motherhood Decreases Life Expectancy Of Mouse Offspring

Date:
May 22, 2005
Source:
Society for the Study of Reproduction
Summary:
In what may prove to be a contentious finding, Spanish scientists report in the June issue of Biology of Reproduction that delayed motherhood decreases the life expectancy of mouse offspring.

The June 2005 issue of Biology of Reproduction includes a special paper by a team of Spanish scientists indicating that delayed motherhood in mice results in shorter life expectancy and reduced body weight in their offspring.

Negative effects of late maternal age in women, such as abnormal numbers of chromosomes in their children, are well known. However, other potential negative effects on offspring from delayed motherhood have been only anecdotal.

In what the editors of Biology of Reproduction feel will be a controversial topic of discussion, a team of reproductive biologists headed by Juan Tarνn at the Department of Pediatrics, University of Valencia, Spain, presents data in the June issue of the journal that delayed motherhood in mice results in decreased life expectancy and reduced body weight of their offspring.

Several other aspects of reproductive fitness of offspring were assessed, but none showed significant deleterious effects.

This report identifying effects of delayed motherhood on life expectancy and body weight of offspring will surely stimulate inquiries into mechanisms resulting in these disturbing consequences, as well as epidemiological studies in humans, according to the editors of Biology of Reproduction.

###

Biology of Reproduction, published by the Society for the Study of Reproduction, is the top-rated peer-reviewed journal in the field of reproductive biology.


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The above story is based on materials provided by Society for the Study of Reproduction. Note: Materials may be edited for content and length.


Cite This Page:

Society for the Study of Reproduction. "Report That Delayed Motherhood Decreases Life Expectancy Of Mouse Offspring." ScienceDaily. ScienceDaily, 22 May 2005. <www.sciencedaily.com/releases/2005/05/050520172907.htm>.
Society for the Study of Reproduction. (2005, May 22). Report That Delayed Motherhood Decreases Life Expectancy Of Mouse Offspring. ScienceDaily. Retrieved July 31, 2014 from www.sciencedaily.com/releases/2005/05/050520172907.htm
Society for the Study of Reproduction. "Report That Delayed Motherhood Decreases Life Expectancy Of Mouse Offspring." ScienceDaily. www.sciencedaily.com/releases/2005/05/050520172907.htm (accessed July 31, 2014).

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