Observational studyThe Indian journal of medical research2021
Clinicopathological study of annexin A5 & apelin in pre-eclamptic placentae with emphasis on foetal outcome.
Observational study in The Indian journal of medical research, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
2 citing papers in PubMed, 3 citations in OpenAlex.
- The role of the annexin A protein family at the maternal-fetal interface.Frontiers in endocrinology · 2024Review
- The need to look beyond ANXA5 & apelin in pre-eclamptic placenta.The Indian journal of medical research · 2021Article
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6 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Background & objectives: Pre-eclampsia has remained an elusive disease with serious impacts on both maternal and foetal health. Two novel markers, annexin A5 (ANXA5) and apelin are currently of considerable interest. The present study aimed to determine the placental expression of ANXA5 and apelin in pre-eclamptic placentae and also to elucidate if there is any correlation between the expression of these markers and the clinical features of both, mother and neonate. The comparison between gross and histopathological features of pre-eclamptic placentae and controls was another objective. Methods: A prospective, observational study was undertaken for one year. Placentae of pre-eclamptic patients and matched controls (matched for age, ethnic and socio-economic background) were collected along with the clinical data. Gross and histopathological analyses were done and immunohistochemical study of placental sections with ANXA5 and apelin was also undertaken. Results: 79 pre-eclamptic patients and equal numbers of matched controls were included in the study. The difference in weight and dimensions of placentae between the pre-eclampsia group and matched controls was significant. Histopathological features noted in the pre-eclamptic placentae included decidual vasculopathy, infarction, perivillous fibrin deposition, increased syncytial knots and distal villous hypoplasia. There was a significant reduction in the expression of both ANXA5 and apelin in pre-eclamptic placentae compared to controls. Among pre-eclamptic patients, the intensity of ANXA5 and apelin expression showed a significant association with respect to neonatal resuscitation. Furthermore, the intensity of apelin showed expression a significant correlation with the requirement of sick neonatal care unit treatment. Interpretation & conclusions: The results of the present study suggest that both ANXA5 and apelin levels are reduced in pre-eclamptic placentae. Hence, it is recommended to further explore the impact of these markers on pregnancy outcomes by undertaking randomized controlled trials.
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