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Obesity "complements" preeclampsia
Kelsey N Olson1,2, Leanne M Redman2, Jenny L Sones1
1Veterinary Clinical Sciences, School of Veterinary Medicine, Louisiana State University , Baton Rouge, Louisiana.
Insights
Maternal obesity may increase preeclampsia risk. Adipose tissue inflammation and complement proteins might contribute to abnormal placental development, a key factor in preeclampsia.
Area of Science:
- Obstetrics and Gynecology
- Immunology
- Reproductive Biology
Background:
- Preeclampsia (PE) is a severe pregnancy complication characterized by hypertension, potentially leading to maternal and fetal mortality.
- The etiology of PE is unknown, and current treatments necessitate delivery, suggesting a role for placental abnormalities.
- Maternal obesity is a known risk factor for PE, linked to systemic inflammation that can affect placental development.
Purpose of the Study:
- To investigate the hypothesis that maternal obesity and adipose-derived complement proteins contribute to preeclampsia development.
- To explore the role of inflammation and angiogenic imbalance in PE pathogenesis, particularly in the context of obesity.
Main Methods:
- This study proposes a hypothesis based on existing literature linking obesity, inflammation, and placental factors in PE.
- The research focuses on the interplay between adipose tissue, complement proteins, inflammatory cytokines, and antiangiogenic factors in the maternal environment.
Main Results:
- Obesity is associated with heightened systemic inflammation, providing a potential mechanism for influencing placental development.
- Adipose tissue releases proinflammatory cytokines and complement proteins implicated in PE pathogenesis.
- These factors may promote the expression of antiangiogenic factors, contributing to the angiogenic imbalance observed in PE.
Conclusions:
- Maternal obesity, through adipose tissue inflammation and complement protein production, is hypothesized to play a significant role in the development of preeclampsia.
- Addressing inflammation and angiogenic imbalance in obese pregnant individuals may offer therapeutic targets for PE prevention or management.
Abstract:
Preeclampsia (PE) is a devastating adverse outcome of pregnancy. Characterized by maternal hypertension, PE, when left untreated, can result in death of both mother and baby. The cause of PE remains unknown, and there is no way to predict which women will develop PE during pregnancy. The only known treatment is delivery of both the fetus and placenta; therefore, an abnormal placenta is thought to play a causal role. Women with obesity before pregnancy have an increased chance of developing PE. Increased adiposity results in a heightened state of systemic inflammation that can influence placental development. Adipose tissue is a rich source of proinflammatory cytokines and complement proteins, which have been implicated in the pathogenesis of PE by promoting the expression of antiangiogenic factors in the mother. Because an aggravated inflammatory response, angiogenic imbalance, and abnormal placentation are observed in PE, we hypothesize that maternal obesity and complement proteins derived from adipose tissue play an important role in the development of PE.