The features of expression of constitutive isoforms of the nitric oxide synthase in paraventricular and supraoptic nuclei of the hypothalamus in hypertension of different origins

Authors

  • Yu. M. Kolesnyk Zaporizhzhia State Medical University,
  • O. V. Hancheva Zaporizhzhia State Medical University,
  • N. V. Kuzo Zaporizhzhia State Medical University,

DOI:

https://doi.org/10.14739/2310-1237.2015.3.56310

Keywords:

hypertension, hypothalamus, nitric oxide synthase, expression, rats

Abstract

Aim. The purpose was to evaluate the features of the neuronal and endothelial nitric oxide synthase expression pattern in supraoptic and magnocellular part of paraventricular nuclei of the hypothalamus in different models of hypertension.

Materials and methods. The study was carried out on 20 Wistar male rats and 10 SHR male rats. There were two experimental models of hypertension used: the genetically predisposed to age-related hypertension SHR and rats with endocrine-saline model of hypertension (ESM). The object was the hypothalamus of rats. The immunohystochemical assay was used to determine the expression of NOS isoforms.

Results showed the imbalance of constitutive NOS isoforms in SON and PVN of hypothalamus in both of SHR and ESM. The eNOS and nNOS expression pattern is dependent on etiological factor, topographical peculiarities of the nuclei and their functions.

Conclusions. We believe the imbalance of constitutive NOS isoforms take part in the hypertension development, its progression and the formation of complications. 

References

Forstermann, U., & Sessa, W. (2011). Nitric oxide synthases: regulation and function. European Heart Journal, 33(7), 829-837.

Wang, Y., & Golledge, J. (2012). Neuronal Nitric Oxide Synthase and Sympathetic Nerve Activity in Neurovascular and Metabolic Systems. CNR, 10(1), 81-89.

Hardingham, N., Dachtler, J., & Fox, K. (2013). The role of nitric oxide in pre-synaptic plasticity and homeostasis. Frontiers In Cellular Neuroscience, 7.

DiBona, G. (2013). Sympathetic Nervous System and Hypertension. Hypertension, 61(3), 556-560.

Parati, G., & Esler, M. (2012). The human sympathetic nervous system: its relevance in hypertension and heart failure. European Heart Journal, 33(9), 1058-1066.

Kolesnyk, Yuri M., Olga V. Hancheva, Andrey V. Abramov, Taras V. Ivanenko, Sergey V. Tishchenko, and Nazar V. Kuzo. Sposib modeliuvannia symptomatychnoi arterialnoi hipertenzii u dribnykh hryzuniv [Method of Modeling of Symptomatic Hypertension in Rodents]. ZSMU, assignee. Patent U 2015 03152. 26 Oct. 2015. Print.

Japundzic-Zigon, N. (2013). Vasopressin and Oxytocin in Control of the Cardiovascular System. Current Neuropharmacology, 11(2), 218-230.

Cerrato, B., Frasch, A., Nakagawa, P., Longo-Carbajosa, N., Peña, C., Höcht, C., & Gironacci, M. (2012). Angiotensin-(1–7) upregulates central nitric oxide synthase in spontaneously hypertensive rats. Brain Research, 1453, 1-7.

How to Cite

1.
Kolesnyk YM, Hancheva OV, Kuzo NV. The features of expression of constitutive isoforms of the nitric oxide synthase in paraventricular and supraoptic nuclei of the hypothalamus in hypertension of different origins. Pathologia [Internet]. 2015Dec.18 [cited 2024Apr.21];(3). Available from: http://pat.zsmu.edu.ua/article/view/56310

Issue

Section

Original research