کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2844100 1571169 2015 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Can low-level ethanol exposure during pregnancy influence maternal care? An investigation using two strains of rat across two generations
ترجمه فارسی عنوان
آیا در معرض کمبود سطح اتانول در دوران بارداری، مراقبت از مادران را تحت تاثیر قرار می دهد؟ تحقیق با استفاده از دو سویه موش در دو نسل
موضوعات مرتبط
علوم زیستی و بیوفناوری بیوشیمی، ژنتیک و زیست شناسی مولکولی فیزیولوژی
چکیده انگلیسی


• Ethanol and water gavage influence maternal behavior in a strain-specific manner.
• Maternal behavior varies across strains of rat.
• Transgenerational transmission of maternal behavior is strain-specific.
• Prenatal gavage alters transgenerational transmission of maternal behavior.

Gestational alcohol use is well documented as detrimental to both maternal and fetal health, producing an increase in offspring's tendency for alcoholism, as well as in behavioral and neuropsychological disorders. In both rodents and in humans, parental care can influence the development of offspring physiology and behavior. Animal studies that have investigated gestational alcohol use on parental care and/or their interaction mostly employ heavy alcohol use and single strains. This study aimed at investigating the effects of low gestational ethanol dose on parental behavior and its transgenerational transmission, with comparison between two rat strains. Pregnant Sprague Dawley (SD) and Long Evans (LE) progenitor dams (F0) received 1 g/kg ethanol or water through gestational days 17–20 via gavage, or remained untreated in their home cages. At maturity, F1 female offspring were mated with males of the same strain and treatment and were left undisturbed through gestation. Maternal behavior was scored in both generations during the first six postnatal days. Arch-back nursing (ABN) was categorized as: 1, when the dam demonstrated minimal kyphosis; 2, when the dam demonstrated moderate kyphosis; and 3, when the dam displayed maximal kyphosis. Overall, SD showed greater amounts of ABN than LE dams and spent more time in contact with their pups. In the F0 generation, water and ethanol gavage increased ABN1 and contact with pups in SD, behaviors which decreased in treated LE. For ABN2, ethanol-treated SD dams showed more ABN2 than water-treated dams, with no effect of treatment on LE animals. In the F1 generation, prenatal exposure affected retrieval. Transgenerational transmission of LG was observed only in the untreated LE group. Strain-specific differences in maternal behavior were also observed. This study provides evidence that gestational gavage can influence maternal behavior in a strain-specific manner. Our results also suggest that the experimental procedure during gestation and genetic variations between strains may play an important role in the behavioral effects of prenatal manipulations.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physiology & Behavior - Volume 148, 1 September 2015, Pages 111–121
نویسندگان
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