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182 0 _ab
200 1 _aRelationship between arterial blood pressure and blood viscosity in spontaneously hypertensive rats treated with pentoxifylline
_fM. B. Plotnikov [et al.]
203 _aText
_celectronic
300 _aTitle screen
330 _aBackground:Systemic arterial pressure (AP) depends on two physiological variables: cardiac output (CO) and total peripheral resistance (TPR). The latter depends on vascular hindrance and blood viscosity (BV). However, the relative contributions of the vascular and rheological factors to TPR remain unclear. Objective:The aim of our work was to study the haemodynamic and haemorheologic effects of a treatment course with pentoxifylline (PTX) in SHRs in an effort to assess the impact of the rheological factor on TPR and AP. Methods:The effects of the treatment course with PTX (100 mg/kg/day p.o. for six weeks) on BV, plasma viscosity, haematocrit, erythrocyte aggregation and deformability, mean AP (MAP), stroke volume (SV), CO, and TPR were studied in SHRs and in control Wistar Kyoto (WKY) rats. Results:PTX-treated SHRs had a lower BV, lower erythrocyte aggregation, and higher erythrocyte deformability index compared with the controls. The TPR level was higher by 43% compared with that in WKY rats and did not differ from the values obtained from control SHRs. In SHRs, moderate and strong positive correlations were found between BV and MAP and between BV and TPR. PTX-treated SHRs did not have any significant correlations between the above mentioned parameters. Conclusions:Treatment with PTX attenuated whole blood viscosity, but did not affect the AP and hemodynamic parameters in the experimental SHRs compared with the control SHRs. The magnitude of the rheologic effects of PTX was insufficient to cause appreciable decreases in TPR and AP.
333 _aРежим доступа: по договору с организацией-держателем ресурса
461 _tBiorheology
463 _tVol. 53, iss. 2
_v[P. 93-107]
_d2016
610 1 _aэлектронный ресурс
610 1 _aтруды учёных ТПУ
610 1 _aпентоксифиллин
610 1 _aартериальное давление
610 1 _aвязкость
610 1 _aкровь
701 1 _aPlotnikov
_bM. B.
701 1 _aAliev
_bO. I.
701 1 _aNosarev
_bA. V.
701 1 _aSidekhmenova
_bA. V.
701 1 _aAnfinogenova
_bYa. J.
_cLinguist
_cLecturer of Tomsk Polytechnic University, Doctor of medical sciences
_f1970-
_gYana Jonovna
_2stltpush
_3(RuTPU)RU\TPU\pers\33592
701 1 _aAnishchenko
_bA. M.
701 1 _aPushkina
_bE. V.
712 0 2 _aНациональный исследовательский Томский политехнический университет (ТПУ)
_bФизико-технический институт (ФТИ)
_bКафедра иностранных языков физико-технического института (ИЯФТ)
_h6715
_2stltpush
_3(RuTPU)RU\TPU\col\18736
801 2 _aRU
_b63413507
_c20170227
_gRCR
856 4 0 _uhttp://dx.doi.org/10.3233/BIR-15100
942 _cCF