کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1933922 | 1050629 | 2009 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Regional variation in adipogenesis and IGF regulatory proteins in the fetal baboon
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
بیوشیمی، ژنتیک و زیست شناسی مولکولی
زیست شیمی
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چکیده انگلیسی
Intrauterine growth rate is associated with body distribution in adulthood suggesting differential response of fetal fat depots to nutritional modifications. We hypothesize that there is regional differences in fetal adipogenesis, in part, due to depot-specific regulation of the availability of insulin growth factors. In near-term baboon fetuses (n = 3-5), the subcutaneous abdominal vs. omental preadipocytes had (1) more extensive lipid accumulation as assessed by BODIPY (lipid staining) to DAPI (nuclei) absorbance ratios (mean ± SEM; 0.51 ± 0.21, 0.35 ± 0.09, p < 0.05), (2) lower (p < 0.05) secretion of IGF-binding protein 4 (9.6 ± 1.2 vs. 17.4 ± 2.8 ng/ml) and its protease pregnancy associated plasma protein A (24.6 ± 1.9 vs. 39.1 ± 6.3 μIU/ml), (3) lower protein expression of IGF2 “clearance” receptor in cell lysate (0.28 ± 0.03 vs. 0.53 ± 0.02 OD U/mm2, p < 0.05); all variables were intermediate in femoral preadipocytes. The regional variation of the adipogenesis and the IGF regulatory pathway set the stage for differential responsiveness of fat depots to external signals.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Biochemical and Biophysical Research Communications - Volume 380, Issue 3, 13 March 2009, Pages 679-683
Journal: Biochemical and Biophysical Research Communications - Volume 380, Issue 3, 13 March 2009, Pages 679-683
نویسندگان
Yourka D. Tchoukalova, Peter W. Nathanielsz, Cheryl A. Conover, Steven R. Smith, Eric Ravussin,