دانلود مقاله ISI انگلیسی شماره 75489
ترجمه فارسی عنوان مقاله

استرس پس از زایمان باعث واکنش های تولید مثل در موش صحرایی در انستیتو رفتاری و تسریع درگیری موش های مبتنی بر هورمون می شود

عنوان انگلیسی
Prenatal Stress Alters Reproductive Responses of Rats in Behavioral Estrus and Paced Mating of Hormone-Primed Rats
کد مقاله سال انتشار تعداد صفحات مقاله انگلیسی ترجمه فارسی
75489 2002 12 صفحه PDF سفارش دهید
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منبع

Publisher : Elsevier - Science Direct (الزویر - ساینس دایرکت)

Journal : Hormones and Behavior, Volume 42, Issue 4, December 2002, Pages 472–483

ترجمه کلمات کلیدی
لردوز پذیرش، قدم زدن، استرس پس از زایمان، محور هیپوتالاموس-هیپوفیز-آدرنال، محور هیپوتالاموس-هیپوفیز-گناد
کلمات کلیدی انگلیسی
lordosis; receptivity; pacing; prenatal stress; hypothalamic–pituitary–adrenal axis; hypothalamic–pituitary–gonadal axis

چکیده انگلیسی

Adult female offspring of dams exposed to gestational stress (prenatal stress, PNS) may show altered reproductive behavior, exploration in novel environments, and/or social interactions than do their non-PNS counterparts. These behavioral differences may be more readily observed in a seminatural, paced mating paradigm, in which females have greater control of their sexual contacts, than in a standard mating situation. Adult offspring of dams exposed to restraint and lights for 45 min on Gestational Days 14–20 (PNS) were compared with those not subjected to stress (non-PNS, control condition). The motor, reproductive, and sociosexual behaviors of hormone-primed (Experiment 1) or cycling adult offspring in behavioral estrus (Experiment 2) were examined following 20 min of restraint stress under bright lights (postnatal stress). Hormone-primed PNS rats displayed less motor behavior in a novel arena than did non-PNS rats. In a standard mating test, hormone-primed PNS females tended to be more aggressive toward the male than were non-PNS rats. In a seminatural mating situation, hormone-primed PNS females showed increased avoidance behavior, such as longer latencies to the initial intromission, greater return latencies following mounts and intromissions, and more exiting subsequent to mounts and intromissions, than did non-PNS rats. PNS rats in behavioral estrus had decreased incidence and intensity of lordosis, and fewer solicitation behaviors, in both standard or paced mating situations, in which latency to and number of mounts were also increased. Thus, hormone-primed PNS rats exposed to restraint showed more avoidance behaviors in paced mating situations, while cycling PNS rats in behavioral estrus had greater disruption of reproductive responses in standard or paced mating paradigms than did non-PNS control rats.

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