Şahika Güner

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Diabetic hearts exhibit decreased responsiveness to stimulation by beta-adrenoreceptor (beta-AR) agonists. This decrease in activity may be due to changes in expression and/or signaling of beta-AR. Recently we showed that right atrial strips from 14-week streptozotocin (STZ)-induced diabetic rat hearts exhibit decreased responsiveness to beta1-AR agonist(More)
There have been several attempts published in the literature related with orally effective insulin formulations, which are increasing in popularity. Some of the results indicate that it is possible to reduce blood glucose level by orally administered liposomal insulin formulations, but there is general need to understand the mechanism and effective(More)
In the present study, we examined the reversal effects of L-arginine (L-ARG) treatment in vivo on blood pressure and on vascular responsiveness of chronic diabetic rats. Twelve weeks after streptozotocin (STZ) injection, the systolic blood pressures (SBP) of diabetic groups have been found to be significantly higher compared with that of control groups.(More)
BACKGROUND Using the streptozotocin-induced diabetic rat model, we have recently showed that the expression and function of beta1-adrenoreceptor were decreased in the diabetic rat heart. However, the effect of diabetes on expression of beta-adrenoreceptors in human cardiac tissue remains undefined. Therefore, the focus of the present study was to(More)
Background: Using the streptozotocin-induced diabetic rat model, we have recently showed that the expression and function of β 1-adrenoreceptor were decreased in the diabetic rat heart. However, the effect of diabetes on expression of β-adrenoreceptors in human cardiac tissue remains undefined. Therefore, the focus of the present study was to investigate(More)
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