کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8807497 1606633 2018 20 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Placentas from women with pregnancy-associated venous insufficiency show villi damage with evidence of hypoxic cellular stress
موضوعات مرتبط
علوم پزشکی و سلامت پزشکی و دندانپزشکی آسیب‌شناسی و فناوری پزشکی
پیش نمایش صفحه اول مقاله
Placentas from women with pregnancy-associated venous insufficiency show villi damage with evidence of hypoxic cellular stress
چکیده انگلیسی
Lower extremity venous insufficiency (VI) is a complication of pregnancy. The potential association of this venous disease with structural damage of the placenta has not been described. We analyzed the pattern of histopathologic lesions and the gene and protein expression of HIF1-α and apoptosis regulatory proteins. A prospective study was carried out on placenta samples from 43 women with pregnancy-associated VI and 24 age-matched pregnant healthy controls (HCs). Women with VI showed a significant increase in the number of villi (150.77 ± 42.55 VI versus 122.13 ± 27.74 HC) and in syncytial knots compared with those found in the placentas from HCs (67.15 ± 31.08 VI versus 42.49 ± 17.36 HC), and an increase in the number of bridges (32.40 ± 2.67 VI versus 22.73 ± 2.37 HC; P < .05). The mean number of syncytial nodes per villus is 1.37 ± 0.90 in the VI group and 0.49 ± 0.58 in the HC group (P < .001). Significant increases in the expression of Bax and caspase-3 and caspase-9 in the placentas from women with VI were observed compared with those found in HC. The expression of HIF-1α at both the messenger RNA and protein levels was also significantly increased in the placentas from women with VI. Our study demonstrates that placentas from women with pregnancy-associated VI show structural remodeling, with an increase in the number of villi and syncytial knots and enhanced apoptotic cellular death. Interestingly, this placental damage is associated with an increased expression of hypoxia-triggered molecular pathways, such as HIF-1α.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Human Pathology - Volume 77, July 2018, Pages 45-53
نویسندگان
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