MORPHOLOGY AND CHEMISTRY OF BROWN-RAT, RATTUS-NORVEGICUS, PREPUTIAL AND CLITORAL GLANDS
MORPHOLOGY AND CHEMISTRY OF BROWN-RAT, RATTUS-NORVEGICUS, PREPUTIAL AND CLITORAL GLANDS
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DOI：
10.1007/bf02036655
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发表时间：
1995-02-01
影响因子：
2.3
通讯作者：
TATTERSALL, FH
中科院分区：
文献类型：
--
作者：
NATYNCZUK, SE;MACDONALD, DW;TATTERSALL, FH
与先前实验室大鼠的结果相反，当雌雄异形发生时，野生雌性大鼠的阴蒂腺比野生雄性大鼠的阴蒂腺更重，占体重的比例更大。腺体长度和重量随体重增加而增加，但腺体重量占体重的比例没有变化。阴囊和阴蒂腺体的大小有季节差异：有一个部位的腺体在12月比4月小。成熟期、发情期和妊娠期对阴蒂腺大小无显著影响，但未成熟雄犬阴蒂腺比成熟雄犬阴蒂腺小，且阴蒂腺的绝对重量随睾丸重量的增加而增加，但与体重的比例无关。脂肪的产生在两性之间没有差异，随着包皮或阴蒂腺重量的增加而增加。通过气相色谱-质谱分析，发现了一系列同源脂肪酸及其甲酯和乙酯，以及角鲨烯、胆固醇和羊毛甾醇。通过色谱峰的主成分分析可以区分雌雄。
In contrast to previous results from laboratory rats, when sexual dimorphism occurred, clitoral glands from wild female rats were heavier and accounted for a greater proportion of body mass than preputial glands from wild males. Gland length and weight increased with body weight, but gland weight as a proportion of body weight did not. Preputial and clitoral glands showed seasonal differences in size: at one site glands were smaller in December than in April. Maturity, estrus, and pregnancy had no significant effect on clitoral gland size, but immature mates had proportionally smaller preputial glands than mature males, and the absolute gland weight, but not gland weight as a proportion of body weight, increased with testes weight. There were no differences between the sexes in lipid production, which increased with preputial or clitoral gland weight. An homologous series of aliphatic acids and their methyl and ethyl esters, plus squalene, cholesterol and lanosterol, was revealed by GC-MS study of the trimethyl silyl derivatized lipid extract. Males and females could be distinguished by principal component analysis of chromatogram peaks.