background: a number of medicinal plants have been used to treat various immunological diseases. nitric oxide (no) has an important regulatory role in the various types of inflammatory processes. objective: to investigate the no modulatory activity of the extracts of several medicinal plants native to iran including dracocephalum kotschyi, linum persicum, dionysia termeana, salvia mirzayanii, f...

background since nitric oxide (no) has an oxidant activity, lower levels following a varicocelectomy may result in better functioning sperm, improved semen quality and consequently higher fertility rates. however, this procedure should be examined in more detail. objectives accordingly, this study was performed to compare the before and after varicocelectomy levels of no in the seminal fluid of...

S-a studiat experimental îndepărtarea particulelor fine de formazină din apă prin precipitare/coagulare cu complex de polielectrolit şi surfactant şi anume complex poliacrilamidă (produs industrial denumit Praestol 644, obţinut de Degussa) şi laurilsulfat de sodiu (SLS). S-a adăugat oxid de calciu pentru a iniţia precipitarea complexului de polielectrolit împreună cu particulele fine. S-au efec...

Jasmonic acid and related oxylipins are controversially discussed to be involved in regulating the initiation and progression of leaf senescence. To this end, we analyzed profiles of free and esterified oxylipins during natural senescence and upon induction of senescence-like phenotypes by dark treatment and flotation on sorbitol in Arabidopsis (Arabidopsis thaliana). Jasmonic acid and free 12-...

Introduction: The relation between morphine and nitric oxide release has been shown. Due to important role of nitric oxide in regulation of skin blood flow, the aim of this study was to investigate the effect of nitric oxide synthase inhibitor (L-NAME) and nitric oxide synthesis precursor (L-arginine) on skin blood flow of intact and morphine-dependent rats. Methods: Skin blood flow of hind pa...

introduction: repeated hyperglycemia play an important role in the development of atherosclerosis in diabetic patients. endothelium is the organ of the first-line defense against atherosclerosis and nitric oxide has a major role in this task. the aim of this study was to determine changes in plasma nitric oxide metabolites concentration during glucose tolerance test in type 2 diabetic rats. met...

Background: Chicken sertoli cells are a model to evaluate the effects of toxic Materialss. These cells can actively proliferate in the in vitro conditions and they are able to passage several times. Because of the widespread use of nanosilver in life and also few studies on the effects of these Materialss on different cell lines, evaluation of its toxic effects is felt. Mechanism of nanosilver ...

background: normal salivary function is considered to be critical for the maintenance of healthy oral mucosa. oral fluids provide an easily available, non-invasive medium for the diagnosis of wide range of diseases and clinical situations. the objective of this study was to estimate and compare salivary nitric oxide levels in patients with oral lichen planus and healthy individuals. aim: to est...

Literature data concerning the role of endothelium and nitric oxide in pathogenesis cardiovascular diseases, administration L-arginine as a part comprehensive therapy patients suffering from essential hypertension (EH) ischemic heart disease (IHD) are cited.Objective: to systematize current literature clinical experience with EH IHD. Conclusion. Nowadays endothelial dysfunction conception is de...