کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5505743 1400277 2017 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Colostrum oxytocin modulates cellular stress response, inflammation, and autophagy markers in newborn rat gut villi
ترجمه فارسی عنوان
کلستروم اکسیتوسین، واکنش استرس سلولی، التهاب و نشانگرهای اتوفایگی را در ویروس های مختلف گلوتاتیون تازه متولد می شود
موضوعات مرتبط
علوم زیستی و بیوفناوری بیوشیمی، ژنتیک و زیست شناسی مولکولی زیست شیمی
چکیده انگلیسی
Little is known about the role of oxytocin (OT) in colostrum during early gut colonization. We previously showed that transient OT receptor (OTR) expression on newborn rat enterocytes coincides with the milk-suckling period, and that OT activates endoplasmic reticulum stress sensors in cultured enterocytes. Here, we explored whether colostrum-OT attenuates stress in newborn villi primed and unprimed by colostrum by measuring levels of stress markers including BiP (an ER chaperone), eIF2a (translation initiation factor), and pPKR (eIF2a kinase). We also measured two inflammation-signaling proteins NF-κB and its inhibitor IκB. To test the impact of colostrum on autophagy, we measured a marker of autophagy initiation, LC3A. Colostrum increased inactive p-eIF2a, p-PKR and IκB and reduced p-IκB, BiP and LC3A. LPS increased and OT decreased p-IkB. BiP (GRP78) was higher in unprimed than primed villi. Together, these data suggest that colostrum OT attenuates the impact of inflammation on postnatal gut villi and that OT enhances autophagy to protect against amino acid insufficiency-induced stress during the interval between birth and the first feeding.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Biochemical and Biophysical Research Communications - Volume 487, Issue 1, 20 May 2017, Pages 47-53
نویسندگان
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