Investigation of Urotensin II expression in placenta and umbilical cord in pregnancies with intrauterine growth restriction by histological and biochemical methods

IF 3 2区医学 Q2 DEVELOPMENTAL BIOLOGY Placenta Pub Date : 2024-09-11 DOI:10.1016/j.placenta.2024.09.003

Raziye Alaca , Tuba Demirci , Emsal Pınar Topdaği Yilmaz , Nurinnisa Öztürk

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Abstract

Objective

In this study, it was aimed to investigate Urotensin II in intrauterine growth restriction (IUGR) and its connection to autophagy and/or apoptosis in placenta and umbilical cord by immunohistochemical and biochemical methods.

Materials and methods

The study included 30 healthy pregnant women and 30 pregnant women with IUGR, aged 19–45, at Atatürk University Gynecology Clinic. Samples were collected from placenta, umbilical cord, maternal blood, and umbilical cord blood during delivery. Histopathological examination was carried out on placenta and umbilical cord, and UTII, Beclin 1, and caspase 3 expressions were analyzed in these tissues. Biochemical analysis was performed on maternal and umbilical cord serum samples.

Results

In healthy placentas, normal villus formation was seen, but those with IUGR showed accelerated villus maturation, causing inadequate nutrition and development. IUGR placentas had fibrin deposition, villous edema, syncytial nodes increase, and intervillous distance. Umbilical cords of IUGR group had differences in vessel wall thickness, arterial lumens, and vessel number. Higher levels of UTII, Beclin 1, and caspase 3 were found in IUGR placenta and cord. Beclin 1 and caspase 3 levels were significantly higher in IUGR group compared to controls, while UTII levels were not significantly different in maternal and cord serums.

Conclusion

As a result of our findings, UTII increase in placenta and umbilical cord may lead to IUGR formation by inducing autophagy and apoptosis.

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通过组织学和生物化学方法研究宫内发育受限孕妇胎盘和脐带中乌洛托品Ⅱ的表达情况

本研究旨在通过免疫组化和生化方法研究宫内生长受限（IUGR）中的乌罗坦素 II 及其与胎盘和脐带中自噬和/或凋亡的关系。在分娩过程中采集了胎盘、脐带、母体血液和脐带血样本。对胎盘和脐带进行了组织病理学检查，并分析了这些组织中UTII、Beclin 1和caspase 3的表达情况。结果健康胎盘的绒毛形成正常，而 IUGR 胎盘的绒毛成熟加速，导致营养和发育不足。IUGR 胎盘有纤维蛋白沉积、绒毛水肿、合胞结节增大和绒毛间距。IUGR 组的脐带血管壁厚度、动脉管腔和血管数量存在差异。UTII、Beclin 1 和 caspase 3 在 IUGR 胎盘和脐带中含量较高。IUGR组的Beclin 1和caspase 3水平明显高于对照组，而母体和脐带血清中的UTII水平无明显差异。

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来源期刊

Placenta 医学-发育生物学

CiteScore

6.30

自引率

10.50%

发文量

391

审稿时长

78 days

期刊介绍： Placenta publishes high-quality original articles and invited topical reviews on all aspects of human and animal placentation, and the interactions between the mother, the placenta and fetal development. Topics covered include evolution, development, genetics and epigenetics, stem cells, metabolism, transport, immunology, pathology, pharmacology, cell and molecular biology, and developmental programming. The Editors welcome studies on implantation and the endometrium, comparative placentation, the uterine and umbilical circulations, the relationship between fetal and placental development, clinical aspects of altered placental development or function, the placental membranes, the influence of paternal factors on placental development or function, and the assessment of biomarkers of placental disorders.