نتایج جستجو برای: l arginine modified magnetic nanoparticle rmnp
تعداد نتایج: 1221950 فیلتر نتایج به سال:
In this study, we explored magnetic nanoparticles translocating through a nanopore in the presence of an inhomogeneous magnetic field. By detecting the ionic current blockade signals with a silicon nitride nanopore, we found that the translocation velocity that is driven by magnetic and hydrodynamic forces on a single magnetic nanoparticle can be accurately determined and is linearly proportion...
Abstract Background: Reduced Nitric oxide (NO) synthesis has been reported in hypothyroidism. NO has many physiological and pathological roles. The purpose of this study was to determine NO metabolites, nitrate and nitrite (NOx), levels in serum and tissues of heart, brain, cerebellum and aorta of rats with fetal hypothyroidism. . Materials and methods: Hypothyroidism was induced in female rats...
Background: There is fine correlation between the infertility and lessening of endometrial thickness. In this study the effects of sedative naloxone, and L-arginine, the precursor of nitric oxide (NO), on endometrial thickness of rat uterus was examined. Materials and Methods: Wistar rats (weighing 200-250 g) in Diestrous phase received intra-peritoneal (i.p.) 1. single L-arginine (50 mg/kg), 2...
background: at present, surgery is the best method for chronic anal fissure, but by acquiring more knowledge about the pathogenesis and function of internal anal sphincter, non surgical treatment such as using of glycerin trinitrate, isosorbide, bethancol, diltiazem and butilinum toxin has been suggested. there is controversy about using of l-arginine. the aim of the present study was to compar...
Abstract Background: Anxiety is a psychological and physiological state characterized by somatic, emotional, cognitive, and behavioral components. Anxiety is considered to be a normal reaction to stress, however excessive anxiety results in anxiety disorder. In this study, we investigated the possible interaction between nicotine and nitric oxide system of the dorsal hippocampus on anxiety-l...
In this paper, magnetically multiwalled carbon nanotubes (MMWCNTs) nanocomposite modified by methyl-2-[2-(2-2-[2-(methoxycarbonyl) phenoxy] ethoxyethoxy) ethoxy] benzoate was applied for magnetic solid-phase extraction (MSPE) of thallium(I) ions. Fourier transform infrared (FT-IR) spectroscopy, field emission scanning electron microscopy (FE-SEM), X-ray diffraction (XRD) spectrometry and vibrat...
Background: Multiple sclerosis (MS ( is one of the chronic autoimmune diseases of the central nervous system with unknown etiology. Nitric oxide (NO) as a free radical has contradictory effect on the central nervous system and on MS disease. Nitric oxide is one of the distractive factors of the immune system and is a factor in the destruction of myelin. On the other hand, there is an interact...
Objective(s): With no substantial cost, we injected L-arginine into the rat’s corpus callosum (CC) to create animal model of multiple sclerosis (MS) and investigated the pre-injection effect of gold nanoparticles (GNPs). Materials and Methods: Adult male Wistar rat (250-300 g) was surgically cannulated at the CC, and after recovery it was injected L-arginine (3-200 µg/rat, intra-CC) once ...
The role of glutamate receptors within the nucleus accumbens in morphine tolerance has been postulated. Previous studies have reported that glutamate receptors exert their effects in part through the release of nitric oxide (NO). In the present study, the effect of intra-accumbal injections of L-arginine, the NO precursor and L-NAME, the NOS inhibitor on the morphine tolerance in Wistar rats (2...
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