Effects of pentoxifylline on hemodynamic, hemorheological, and microcirculatory parameters in young SHRs during arterial hypertension development

Autor: Mark B. Plotnikov, Oleg I. Aliev, Alexander Y. Shamanaev, Anastasia V. Sidekhmenova, Yana Anfinogenova, Anna M. Anishchenko, Tatiana I. Fomina, Alexander M. Arkhipov
Jazyk: angličtina
Rok vydání: 2017
Předmět:
Zdroj: Clinical and Experimental Hypertension, Vol 39, Iss 6, Pp 570-578 (2017)
Druh dokumentu: article
ISSN: 1064-1963
1525-6006
10641963
DOI: 10.1080/10641963.2017.1291662
Popis: The most common form of hypertension in young adults is isolated diastolic hypertension. Diastolic arterial pressure is determined by the total peripheral resistance and depends on both vascular hindrance and blood viscosity. The aim of our work was to study the efficiency of pentoxifylline (PTX) in young spontaneously hypertensive rats (SHRs) during the development of arterial hypertension. The effects of a treatment course with PTX (100 mg/kg/day p.o. for 6 weeks, from 5 to 11 weeks old) on the mean, systolic, and diastolic blood pressure (BP); stroke volume; cardiac output; total peripheral resistance (TPR); whole blood viscosity (BV); plasma viscosity; hematocrit; RBC aggregation and deformability; local cerebral blood flow (lCBF); and microvascularization of the visual cortex were studied in SHRs in comparison with control SHRs and Wistar Kyoto rats. PTX-treated SHRs had significantly lower systolic, diastolic, and mean BP (by 24%, 26%, and 15%, respectively) and BV (by 5–9%) and a higher erythrocyte deformability index (by 1.5–2%), lCBF (by 42%), average diameter of capillaries (by 11%), density of the capillary network (by 23%), and percentage of capillaries with a diameter of 3–7 µm in comparison with control SHRs. In conclusion, PTX exerted positive effects on the hemodynamic, hemorheological, and microcirculatory parameters in SHRs during the development of arterial hypertension.
Databáze: Directory of Open Access Journals
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