Zhurnal nevrologii i psikhiatrii imeni S.S. Korsakova · 2018
[Changes in spatial relationships between catecholamine- and nitroxidergic neurons in the nuclei of the caudal brain stem in the development of hypertension].
СтатьяНазвание и аннотация: Оригинал на русском
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Chertok V M, Kotsyuba A E, Starceva M S
Аннотация
AIM: To obtain the data on the spatial relationships between catecholamine (TH-positive) and nitroxidergic (nNOS-positive) neurons in vasomotor nuclei of the medulla in different periods of hypertension development.
MATERIAL AND METHODS: The experiment was performed on male Wistar rats (n=45) with induced renovascular hypertension (RVH). TH and nNOS in neurons of solitary tract nuclei, reticular small-and giant cell nuclei were detected using immunohistochemical methods.
RESULTS AND CONCLUSION: The most early and severe changes in the intensity of reaction and amount of nNOS-positive neurons were noted in the solitary tract nucleus. Significant changes in the quantitative parameters of TH-positive neurons in RVH were identified only in the reticular giant cell nucleus but they appeared later and were less expressed compared to nNOS-positive cells. This resulted in the changes of spatial relationships between two types of neurons and remodeling of the bulbar region of the cardiovascular center.
MATERIAL AND METHODS: The experiment was performed on male Wistar rats (n=45) with induced renovascular hypertension (RVH). TH and nNOS in neurons of solitary tract nuclei, reticular small-and giant cell nuclei were detected using immunohistochemical methods.
RESULTS AND CONCLUSION: The most early and severe changes in the intensity of reaction and amount of nNOS-positive neurons were noted in the solitary tract nucleus. Significant changes in the quantitative parameters of TH-positive neurons in RVH were identified only in the reticular giant cell nucleus but they appeared later and were less expressed compared to nNOS-positive cells. This resulted in the changes of spatial relationships between two types of neurons and remodeling of the bulbar region of the cardiovascular center.