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  • 1
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    Release of luteinizing hormone in male mice during exposure to females: habituation of the response (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1979-11-30
    Description: Male mice release luteinizing hormone when exposed for a short time to a female. In this experiment, multiple blood samples were withdrawn by atrial cannulas from tethered males during either continuous or intermittent exposure to nonreceptive females. After an immediate, transient release of luteinizing hormone, continuous exposure to the same female was accompanied by only random, spontaneous elevations in plasma levels of this hormone. Successive presentations of the same female at 2-hour intervals elicited gradually diminishing luteinizing hormone responses. Exposing such unresponsive males to novel, diestrous females, however, dramatically stimulated their release of the hormone. These results demonstrate habituation of a socially induced, neuroendocrine response involving reproductive hormones.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Coquelin, A -- Bronson, F H -- New York, N.Y. -- Science. 1979 Nov 30;206(4422):1099-101.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/573924" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Arousal/physiology ; Diestrus ; Female ; Habituation, Psychophysiologic/*physiology ; Luteinizing Hormone/*metabolism ; Male ; Mice ; Pregnancy ; Sexual Behavior, Animal/physiology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 2
    Electronic Resource
    Electronic Resource
    Lability of fat stores in peripubertal wild house mice (1991)
    Springer
    Journal of comparative physiology 161 (1991), S. 15-18 
    Details
    ISSN: 1432-136X
    Keywords: Food ; Cold ; Fat ; Lability ; Puberty
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Traditionally, the adaptive value of mammalian white fat stores is considered in relation to longterm needs such as providing protection against the vagaries of winter or signalling the reproductive system when energy reserves are sufficient to risk pregnancy. As shown here, the fat stores of young house mice could not serve such needs. Despite prolonged acclimation and excess nesting material, food deprivation at 10°C significantly lowered the fat stores of peripubertal female house mice in only 12 h, and would exhaust them in 30 h. Even close to thermoneutrality (24°C) the calculated time to exhaustion was only 70 h. The fat stores of a young house mouse are obviously too meager to offer any meaningful protection over a winter of several months duration, or even over a 5–6-week cycle of pregnancy and lactation. Furthermore, in a wild habitat where food availability and ambient temperature can vary rapidly and greatly, such fat stores would be too labile to effectively coordinate puberty with somatic development.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00258741
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