کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6817679 1433952 2018 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effects of paternal high-fat diet and rearing environment on maternal investment and development of defensive responses in the offspring
ترجمه فارسی عنوان
تأثیر رژیم غذایی پرچرب و محیط پرورش در سرمایه گذاری مادران و توسعه واکنش های دفاعی در فرزندان
موضوعات مرتبط
علوم زیستی و بیوفناوری بیوشیمی، ژنتیک و زیست شناسی مولکولی علوم غدد
چکیده انگلیسی
Paternal preconception risk factors (e.g. stress, diet, drug use) correlate with metabolic dysfunction in offspring, which is often comorbid with depressive and anxiety-like phenotypes. Detection of these risk factors or deleterious phenotypes informs a female about prevailing ecological demands, in addition to potential adverse environment-induced phenotypes that may be disseminated to her offspring. We examined whether a F0 male rat's prior exposure to an obesogenic high-fat diet (HFD) influences a female's attraction towards a male, subsequent mother-infant interactions and the development of defensive (emotional) responses in the F1 offspring. Females displayed less interest in the HFD exposed F0 males relative to control diet-exposed F0 males. Dams that reared F1 offspring in larger, semi-naturalistic housing provided more licking and grooming and active arched-back-nursing behavior. However, some of these effects interacted with paternal experience. F0 HFD and maternal rearing environment revealed sex-dependent, between group differences in F1 offspring wean weight, juvenile social interactions and anxiety-like behavior in adolescence. Our results show for the first time in mammals that male exposure to HFD may contribute to stable behavioral variation among females in courtship, maternal care, even when the females are not directly exposed to a HFD, and anxiety-like behavior in F1 offspring. Furthermore, when offspring were exposed to a predatory threat, hypothalamic Crf gene regulation was influenced by early housing. These results, together with our previous findings, suggest that paternal experience and maternal rearing conditions can influence maternal behavior and development of defensive responses of offspring.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Psychoneuroendocrinology - Volume 91, May 2018, Pages 20-30
نویسندگان
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