Related Experiment Video
Updated: Jun 7, 2026

Disruption of the Mouse Blood-Brain Barrier by Small Extracellular Vesicles from Hypoxic Human Placentas
Published on: January 26, 2024
Haptoglobin phenotype in women with preeclampsia
Rami N Sammour1, Farid M Nakhoul, Andrew P Levy
1Department of Obstetrics and Gynecology, Bnai-Zion Medical Center, Haifa, Israel.
Haptoglobin 1-1, a potent antioxidant, was less prevalent in preeclamptic women compared to healthy individuals. This suggests Haptoglobin 1-1 may offer protection against preeclampsia development.
Area of Science:
- Obstetrics and Gynecology
- Biochemistry
- Genetics
Background:
- Preeclampsia is linked to placental oxidative and endoplasmic reticulum stress.
- Haptoglobin (Hp) is an antioxidant protein with three phenotypes: 1-1, 1-2, and 2-2.
- Hp 1-1 exhibits superior antioxidant capacity.
Purpose of the Study:
- To investigate the association between Haptoglobin 1-1 phenotype and preeclampsia.
- To determine if Hp 1-1 is less common in preeclamptic women than in healthy controls.
Main Methods:
- A case-control study compared Haptoglobin phenotypes in 120 preeclamptic and 240 healthy pregnant women.
- Statistical significance was assessed using the Chi-square test.
Main Results:
- The prevalence of Hp 1-1 was 13% in healthy women versus 6% in preeclamptic women (P=0.049).
- A higher prevalence of Hp 1-1 was observed in healthy subjects compared to preeclamptic subjects.
Conclusions:
- The findings suggest a potential protective role for Haptoglobin 1-1 in preeclampsia.
- Further research with larger cohorts is warranted to confirm the role of Hp 1-1 in preeclampsia risk assessment.
Related Concept Videos
Pathophysiology of Diabetes
Type 1 diabetes is characterized by autoimmune-mediated destruction of pancreatic β cells, with environmental factors potentially triggering this process in genetically susceptible individuals. Despite many not having a family history, certain genes increase susceptibility, suggesting a...
Hormonal Regulation
Rh Blood Group
Cardiomyopathy III: Hypertrophic Cardiomyopathy
Mitral Valve Prolapse III: Nursing Management
Nephrotic Syndrome I : Introduction