Journal of perinatal medicine · 2014
Preeclampsia is caused by continuous sympathetic center excitation due to an enlarged pregnant uterus.
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Maeda Kazuo
Аннотация
AIMS: To deduce the origin of preeclampsia characterized by hypertension and proteinuraia on the basis of results from animal studies and its therapeutic strategies.
METHODS: Sympathetic and parasympathetic zones of female non-pregnant rabbit brain were stimulated electrically with Kurotu's electrodes. Systolic blood pressure, urine volume, and proteinuria were evaluated before and after the stimulation of autonomic zones.
RESULTS: Excitation, hypertension, urine reduction, cloudy urine, and proteinuria were observed following stimulation of the sympathetic zone. A stable state, low blood pressure, increased urine volume, and no proteinuria were observed following stimulation of the parasympathetic zone.
CONCLUSION: Hypertension and proteinuria in preeclampsia are caused by continuous stimulation of the sympathetic nervous center in the hypothalamus through the innervation between the enlarged uterus and hypothalamus in the latter stages of pregnancy or in a complete hydatidiform mole. Future studies are needed to address the potential of pharmacological suppression of an overactive sympathetic nerve system.
METHODS: Sympathetic and parasympathetic zones of female non-pregnant rabbit brain were stimulated electrically with Kurotu's electrodes. Systolic blood pressure, urine volume, and proteinuria were evaluated before and after the stimulation of autonomic zones.
RESULTS: Excitation, hypertension, urine reduction, cloudy urine, and proteinuria were observed following stimulation of the sympathetic zone. A stable state, low blood pressure, increased urine volume, and no proteinuria were observed following stimulation of the parasympathetic zone.
CONCLUSION: Hypertension and proteinuria in preeclampsia are caused by continuous stimulation of the sympathetic nervous center in the hypothalamus through the innervation between the enlarged uterus and hypothalamus in the latter stages of pregnancy or in a complete hydatidiform mole. Future studies are needed to address the potential of pharmacological suppression of an overactive sympathetic nerve system.