Fertility in a high-altitude environment is compromised by luteal dysfunction: the relative roles of hypoxia and oxidative stress

Abstract excerpt

BACKGROUND: At high altitudes, hypoxia, oxidative stress or both compromise sheep fertility. In the present work, we tested the relative effect of short- or long-term exposure to high altitude hypobaric hypoxia and oxidative stress on corpora luteal structure and function. METHODS: The growth dynamics of the corpora lutea during the estrous cycle were studied daily by ultrasonography in cycling sheep that were...

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