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Does oxidative stress play a role in altered plasma protein homeostasis in pregnancy-induced hypertension?

S Asmathulla1, Bidhan Chandra Koner, D Papa

  • 1Department of Biochemistry, Jawaharlal Institute of Postgraduate Medical Education & Research Institute, Puducherry, India.

Acta Physiologica Hungarica
|September 7, 2011
PubMed

Insights

Oxidative stress in pregnancy-induced hypertension (PIH) damages plasma proteins, leading to lower levels. Hypersialylation may protect proteins from this oxidative damage.

Area of Science:

  • Biochemistry
  • Obstetrics
  • Pathophysiology

Background:

  • Pregnancy-induced hypertension (PIH) is linked to oxidative stress and reduced plasma proteins.
  • This study investigates the impact of oxidative stress on plasma protein levels in PIH.

Purpose of the Study:

  • To examine the relationship between oxidative stress markers and plasma protein levels in various forms of PIH.
  • To understand the role of protein damage in the pathogenesis of PIH.

Main Methods:

  • Quantified serum total proteins, albumin, globulin, malondialdehyde, protein carbonyls (PC), and protein bound sialic acid (PBSA) in PIH subgroups and healthy controls.
  • Utilized electrophoresis to assess protein damage.

Main Results:

  • PIH subgroups showed significantly increased malondialdehyde, PC, and PBSA, with decreased total proteins and albumin compared to healthy controls.
  • Globulin levels decreased only in eclampsia.
  • Negative correlation observed between malondialdehyde/PC and albumin; electrophoretogram indicated protein fragmentation and aggregation in eclampsia.

Conclusions:

  • Oxidative protein damage contributes to reduced serum protein levels in PIH.
  • Hypersialylation of plasma proteins is a potential protective response against oxidative damage in PIH.
Abstract

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