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Climate change is associated with male:female ratios of fetal deaths and newborn infants in Japan
Conclusion(s): The recent temperature fluctuations in Japan seem to be linked to a lower male:female sex ratio of newborn infants, partly via increased male fetal deaths. Male concepti seem to be especially vulnerable to external stress factors, including climate changes.
www.fertstert.org/article/S0015-0282(14)01840-8/abstract
98. Climate change is associated with male:female ratios of fetal deaths and newborn infants in Japan [Business Announcements]
from: Administrator (office@fertaid.com), Australia on 15/09/2014 11:41:20 PM Profession:
Comment: The recent temperature fluctuations in Japan seem to be linked to a lower male:female sex ratio of newborn infants, partly via increased male fetal deaths. Male concepti seem to be especially vulnerab
Submission: A great paper that looks at temperature (??caused by climate change) and the rate of miscarriage and found that male fetuses appeared to be more susceptible to temperature stress leading to higher sex ratios among miscarriages and a appropriate decrease in sex ratios (more females) live births. There is considerable animal data (reptiles) suggesting that the sex ratio were temperature dependent but this data suggests that it may also apply to some degree in humans. Not only will it influence data collections systems but this pales into insignificance to couples conceiving a male fetus. I suspect this data will be difficult to confirm but when so may lead to the use of PDG to undertake sex selection to promote a female conception. Of final interest is why!
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