Abstract
Purpose of Review
To provide insight into the mechanisms underlying cerebral pathophysiology and to highlight possible methods for evaluation, screening, and surveillance of cerebral complications in preeclampsia.
Recent Findings
The pathophysiology of eclampsia remains enigmatic. Animal studies show that the cerebral circulation in pregnancy and preeclampsia might be affected with increased permeability over the blood-brain barrier and altered cerebral blood flow due to impaired cerebral autoregulation. The increased blood pressure cannot be the only underlying cause of eclampsia and cerebral edema, since some cases of eclampsia arise without simultaneous hypertension. Findings from animal studies need to be confirmed in human tissues. Evaluation of brain alterations in preeclampsia and eclampsia is challenging and demands a multidisciplinary collaboration, since no single method can accurately and fully describe how preeclampsia affects the brain.
Summary
Cerebral complications of preeclampsia are significant factors in maternal morbidity and mortality worldwide. No single method can accurately describe the full picture of how preeclampsia affects the brain vasculature and parenchyma. We recommend an international and multidisciplinary effort not only to overcome the issue of limited sample availability but also to optimize the quality of research.
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Abbreviations
- BBB:
-
Blood-brain barrier
- BP:
-
Blood pressure
- CBF:
-
Cerebral blood flow
- CVR:
-
Cerebral vascular resistance
- CSF:
-
Cerebrospinal fluid
- GABA:
-
Gamma amino butyric acid
- hPSCs:
-
Human pluripotent stem cells
- JAMs:
-
Junctional adhesion molecules
- LPS:
-
Lipopolysaccharide
- MgSO4 :
-
Magnesium sulfate
- MRI:
-
Magnetic resonance imaging
- MRS:
-
Magnetic resonance spectroscopy
- H-MRS:
-
Magnetic resonance spectroscopy focused on hydrogen metabolites
- P-MRS:
-
Magnetic resonance spectroscopy focused on phosphorus metabolites
- NfL:
-
Neurofilament light chain
- NSE:
-
Neuron-specific enolase
- PTZ:
-
Pentylenetetrazole
- PRES:
-
Posterior reversible encephalopathy syndrome
- RUPP:
-
Reduced uteroplacental perfusion pressure
- RUPP+HC:
-
Reduced uteroplacental perfusion pressure plus high cholesterol diet
- S100B:
-
S100 calcium-binding protein B
- TEER:
-
Transendothelial electrical resistance
- WML:
-
White matter lesions
References
Papers of particular interest, published recently, have been highlighted as: • Of importance •• Of major importance
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Acknowledgments
The authors would like to thank Emily Gatu for her editorial assistance and the researchers belonging to GRIVAS health for their valuable input.
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This manuscript was supported by Conicyt grant REDI170373. CE is supported by DIUBB 184309 4/R.
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CE and LB: designed and wrote the manuscript. All co-authors included their respective sections according to expertise. JMR, AKW, and JP contributed to the writing of the manuscript and provided a critical revision of its contents. All co-authors approved the final version of this manuscript.
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Bergman, L., Torres-Vergara, P., Penny, J. et al. Investigating Maternal Brain Alterations in Preeclampsia: the Need for a Multidisciplinary Effort. Curr Hypertens Rep 21, 72 (2019). https://doi.org/10.1007/s11906-019-0977-0
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DOI: https://doi.org/10.1007/s11906-019-0977-0