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  • Title: Association between gravitational force and tissue metabolism in periparturient rats.
    Author: Zakrzewska EI, Maple R, Lintault L, Wade C, Baer L, Ronca A, Plaut K.
    Journal: J Gravit Physiol; 2004 Jul; 11(2):P157-60. PubMed ID: 16240499.
    Abstract:
    Recently, interest in mammalian reproduction and offspring survival in altered gravity has been growing. Because successful lactation is critical for mammalian neonate survival, we have been studying the effect of gravity metabolism. We have shown an exponential relationship between glucose metabolic rate in mammary tissue of periparturient rats and an increase in gravity load. In this study we showed that changes in mammary metabolic rate due to gravity force were accompanied by a decrease in glucose metabolism in adipose tissue and by a reduced size of adipocytes. We assume that these changes are likely due to changes in prolactin or leptin levels related to altered gravity load.
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