Rifampin, an antibiotic widely used for the treatment of mycobacterial infections, produceshepatic, renal and bone marrow toxicity in human and animals. In this study, the protectiveeffects of vitamin C and n-acetylcysteine (NAC) on the toxicity of rifampin on HepG2 cellswere investigated.Human hepatoma cells (HepG2) were cultured in 96-well M of rifampin in the presence ofmicroplate and expose...

Objective Paracrine disruption of growth factors in women with polycystic ovarian syndrome results in production of low quality oocyte, especially following ovulation induction. The aim of this study was to investigate the effects of metformin (MET), N-acetylcysteine (NAC) and their combination on the hormonal levels and expression profile of GDF-9, BMP-15 and c-Kit, as hallmarks of oocyte qual...

The nac gene product is a LysR regulatory protein required for nitrogen regulation of several operons from Klebsiella aerogenes and Escherichia coli. We used P22 challenge phage carrying the put control region from K. aerogenes to identify the nucleotide residues important for nitrogen assimilation control protein (NAC) binding in vivo. Mutations in an asymmetric 30-bp region prevented DNA bind...

The effect of high N-acetylcysteine (NAC) concentrations (10 and 50 mM) on antibiotic activity against 40 strains of respiratory pathogens was investigated. NAC compromised the activity of carbapenems (of mostly imipenem and, to lesser extents, meropenem and ertapenem) in a dose-dependent fashion. We demonstrated chemical instability of carbapenems in the presence of NAC. With other antibiotics...

introduction it has long been known that ionizing radiation can lead to detrimental effects in normal cells. in this light, radioprotective chemicals have been used to decrease morbidity or mortality caused by ionizing irradiation. this study aimed to evaluate the radio-protective effect of n-acetylcysteineagainst radiation-induced mortality in male mice. materials and methods 52 healthy male m...

n-acetyl cysteine (nac), as a nutritional supplement, is a greatly applied antioxidant in vivo and in vitro. nac is a precursor of l-cysteine that results in glutathione elevation biosynthesis. it acts directly as a scavenger of free radicals, especially oxygen radicals. nac is a powerful antioxidant. it is also recommended as a potential treatment option for different disorders resulted from g...

Deep brain stimulation of the nucleus accumbens (NAc-DBS) is an emerging therapy for diverse, refractory neuropsychiatric diseases. Although DBS therapy is broadly hypothesized to work through large-scale neural modulation, little is known regarding the neural circuits and networks affected by NAc-DBS. Using a healthy, sedated rat model of NAc-DBS, we employed both evoked- and functional connec...

Within the last decade, NAC transcription factors have been shown to play essential roles in senescence, which is the focus of this review. Transcriptome analyses associate approximately one third of Arabidopsis NAC genes and many crop NAC genes with senescence, thereby implicating NAC genes as important regulators of the senescence process. The consensus DNA binding site of the NAC domain is u...