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Nuclear glutathione

Haidy Abbas, Rabab Kamel, Nesrine El-Sayed
In this study, Compritol ATO-based Resveratrol colloidal carriers (CCCs) were prepared. In most formulae, the use of a binary-mixture of surfactants improved the physicochemical properties. CCC6 (containing P407/P188 as bi-surfactants) attained the highest drug loading, release efficiency during 24 hr and occlusive effect for 48 hr; in addition to, a uniform particle size distribution within the desired range. In-vivo studies were done based on the analysis of anti-oxidant markers [catalase (CAT), reduced glutathione (GSH) and superoxide dismutase (SOD)], anti-inflammatory markers [interleukin 6 (IL-6), interleukin 8 (IL-8) and rat Nuclear factor-kappa B (NF-κB)] and anti-wrinkling markers [matrix metalloproteinase (MMP-1) and Granulocyte-macrophage colony-stimulating factor (GM-CSF)], after UVB-irradiation...
February 16, 2018: International Journal of Pharmaceutics
E D Mohammed, R N El-Naga, R A Lotfy, A A Al-Gendy, E El-Demerdash
The present study is the first one to investigate the glucosinolates (GLS) profile and anti-fibrotic effect of isothiocyanates (ITCs) rich fraction of Matthiola arabica (Brassicaceae) using an experimental model of liver fibrosis in rats. Five GLS (ethyl glucosinolate, gluconapin, glucodehydroerucin, glucoerucin and glucoraphanin) were identified by gas liquid chromatography-mass spectrometric (GLC-MS) analysis of their hydrolysis products, produced by the natural autolysis and exogenous myrosinase hydrolysis using one and two units of the enzyme...
October 1, 2017: Die Pharmazie
Jianjun Huang, Xuping Yao, Guobin Weng, Honggang Qi, Xiaolei Ye
This study explored the potential value of curcumin, a natural product, in the protection of CsA‑induced nephrotoxicity. The aim of the present study was to investigate the effects of curcumin on Cyclosporine A (CsA)‑induced renal oxidative stress and determine the potential underlying molecular mechanisms of the renal protective effects of Cur. HK‑2 human renal cells were co‑treated with CsA and various doses of Cur. Cell survival rate was determined by an MTT assay, total cellular protein was collected and oxidative stress in cell homogenates was evaluated by determining the activity of superoxide dismutase (SOD), glutathione peroxidase (GSH‑Px) and catalase (CAT), the levels of malondialdehyde (MDA) and reactive oxygen species (ROS), and total antioxidant capacity...
February 12, 2018: Molecular Medicine Reports
Ji Yun Jung, Sang Mi Park, Hae Li Ko, Jong Rok Lee, Chung A Park, Sung Hui Byun, Sae Kwang Ku, Il Je Cho, Sang Chan Kim
Oxidative stress induced by reactive oxygen species is the main cause of various liver diseases. This study investigated the hepatoprotective effect of Epimedium koreanum Nakai water extract (EKE) against arachidonic acid (AA)[Formula: see text]+[Formula: see text]iron-mediated cytotoxicity in HepG2 cells and carbon tetrachloride (CCl4-)-mediated acute liver injury in mice. Pretreatment with EKE (30 and 100μg/mL) significantly inhibited AA[Formula: see text]+[Formula: see text]iron-mediated cytotoxicity in HepG2 cells by preventing changes in the expression of cleaved caspase-3 and poly(ADP-ribose) polymerase...
February 12, 2018: American Journal of Chinese Medicine
Deniz Öner, Manosij Ghosh, Hannelore Bové, Matthieu Moisse, Bram Boeckx, Radu C Duca, Katrien Poels, Katrien Luyts, Eveline Putzeys, Kirsten Van Landuydt, Jeroen Aj Vanoirbeek, Marcel Ameloot, Diether Lambrechts, Lode Godderis, Peter Hm Hoet
BACKGROUND: Subtle DNA methylation alterations mediated by carbon nanotubes (CNTs) exposure might contribute to pathogenesis and disease susceptibility. It is known that both multi-walled carbon nanotubes (MWCNTs) and single-walled carbon nanotubes (SWCNTs) interact with nucleus. Such, nuclear-CNT interaction may affect the DNA methylation effects. In order to understand the epigenetic toxicity, in particular DNA methylation alterations, of SWCNTs and short MWCNTs, we performed global/genome-wide, gene-specific DNA methylation and RNA-expression analyses after exposing human bronchial epithelial cells (16HBE14o- cell line)...
February 9, 2018: Particle and Fibre Toxicology
Xiaoqi Pan, Xu Wu, Dandan Yan, Cheng Peng, Chaolong Rao, Hong Yan
Acrylamide (ACR) is a classic neurotoxin in animals and humans. However, the mechanism underlying ACR neurotoxicity remains controversial, and effective prevention and treatment measures against this condition are scarce. This study focused on clarifying the crosstalk between the involved signaling pathways in ACR-induced oxidative stress and inflammatory response and investigating the protective effect of antioxidant N-acetylcysteine (NAC) against ACR in PC12 cells. Results revealed that ACR exposure led to oxidative stress characterized by significant increase in reactive oxygen species (ROS) and malondialdehyde (MDA) levels and glutathione (GSH) consumption...
February 6, 2018: Toxicology Letters
Ting Sun, Yanmei Zhang, Shuping Zhong, Fenfei Gao, Yicun Chen, Bin Wang, Wenfeng Cai, Zhaojing Zhang, Weiqiu Li, Shishi Lu, Fuchun Zheng, Ganggang Shi
Early growth response-1 (Egr-1), a transcription factor which often underlies the molecular basis of myocardial ischemia/reperfusion (I/R) injury, and oxidative stress, is key to myocardial I/R injury. Silent information regulator of transcription 1(SIRT1) not only interacts with and is inhibited by Egr-1, but also downregulates reactive oxygen species (ROS) via the Forkhead box O1(FOXO1)/manganese superoxide dismutase (Mn-SOD) signaling pathway. N-n-butyl haloperidol iodide (F2), a new patented compound, protects the myocardium against myocardial I/R injury in various animal I/R models in vivo and various heart-derived cell hypoxia/reoxygenation (H/R) models in vitro...
2018: Frontiers in Pharmacology
Biying Liu, Hongxiang Yu, Ruiqi Baiyun, Jingjing Lu, Siyu Li, Qizheng Bing, Xiaoya Zhang, Zhigang Zhang
Food-derived compound luteolin possesses multiple pharmacological activities. Accordingly, we focused on exploring the protective effects of luteolin (100 mg/kg) against mercuric chloride (HgCl2) (5 mg/kg) stimulated lung injury and the molecular mechanisms of lung protection effects in mouse. The influence of luteolin on histologic changes, oxidative stress, proinflammatory cytokine production, neutrophil activation, and apoptosis were assayed in HgCl2-induced lung injury. Luteolin administration attenuated pulmonary histologic conditions and apoptotic change...
February 5, 2018: Food and Chemical Toxicology
Huan-Huan Tang, Hai-Long Li, Yue-Xuan Li, Yan You, Yun-Yun Guan, Su-Lin Zhang, Li-Xin Liu, Wei-Lian Bao, Yong Zhou, Xiao-Yan Shen
ETHNOPHARMACOLOGICAL RELEVANCE: Jiang-Xian HuGan (JXHG) formulated by five natural products including Freshwater clam (Corbicula fluminea), Curcuma longa L., Ligustrum lucidum, Eclipta prostrata (L.) L. and Paeonia lactiflora Pall., has exhibited a great hepatoprotective effect. AIM OF THIS STUDY: We investigated the effect of JXHG on concanavalin A (ConA)-induced acute live injury in mice, and to elucidate its underlying molecular mechanisms. MATERIALS AND METHODS: Jiangkanling Capsule (900mg/kg), low-dose JXHG (LJXHG, 700mg/kg), high-dose JXHG (HJXHG, 1400mg/kg) were administered to mice by oral gavage daily for 20 days prior to a single intravenous injection of ConA (20mg/kg)...
February 5, 2018: Journal of Ethnopharmacology
Mingzi Chen, Lihong Jiang, Yue Li, Ge Bai, Jinghua Zhao, Ming Zhang, Jiantao Zhang
The aim of the current study was to identify the protective effect of hydrogen gas against liver injury during CO2 pneumoperitoneum. Rats were randomly divided into three groups: control group (C group), pneumoperitoneum group (P15 group) and hydrogen group (H2 group). Rats in the C group were subjected to anesthesia for 90 min. Rats in the P15 group received an abdominal insufflation of CO2 for 90 min at an intra-abdominal pressure of 15 mmHg. Rats in the H2 group received a hypodermic injection of hydrogen gas (0...
January 5, 2018: Oncotarget
Sebastian Virreira Winter, Arturo Zychlinsky
Inflammasomes are cytosolic complexes that mature and secrete the inflammatory cytokines IL-1β and IL-18 and induce pyroptosis. The NLRP3 inflammasome detects many pathogen- and danger-associated molecular patterns, and reactive oxygen/nitrogen species (ROS/RNS) have been implicated in its activation. The phenazine pyocyanin (PCN) is a virulence factor of Pseudomonas aeruginosa and generates superoxide in cells. Here, we report that PCN inhibits IL-1β and IL-18 release and pyroptosis upon NLRP3 inflammasome activation in macrophages by preventing speck formation and Caspase-1 maturation...
February 6, 2018: Journal of Biological Chemistry
Chin-Shiu Huang, Haw-Wen Chen, Tzu-Yu Lin, Ai-Hsuan Lin, Chong-Kuei Lii
ETHNOPHARMACOLOGICAL RELEVANCE: Shikonin, a naphthoquinone pigment abundant in the root of the Chinese herb Lithospermum erythrorhizon, has been widely used to treat inflammatory diseases for thousands of years. Whether shikonin changes drug metabolism remains unclear. AIM OF THE STUDY: We investigated whether shikonin modulates the expression of hepatic drug-metabolizing enzymes and transporters as well as the possible mechanisms of this action. MATERIALS AND METHODS: Primary hepatocytes isolated from Sprague-Dawley rats were treated with 0-2 μM shikonin and the protein and mRNA levels of drug-metabolizing enzymes and transporters as well as the activation of aryl hydrocarbon receptor (AhR) and NF-E2-related factor 2 (Nrf2) were determined...
January 25, 2018: Journal of Ethnopharmacology
Sahar Mohamed El Agaty
This study was designed to investigate whether and how triiodothyronine (T3) affects renal function in an experimental model of chronic kidney disease. Twenty four female rats were divided into: sham operated control group (n=8) , 5/6 nephrectomized group (Nx, n=8) and 5/6 nephrectomized group treated with T3 for 2 weeks (T3-Nx, n=8). T3 administration significantly decreased serum levels of urea, creatinine, tumour necrosis factor alpha, and interleukin-6 compared to Nx group. The levels of malondialdehyde , transforming growth factor beta, fibronectin, and collagen IV as well as the expression of inducible nitric oxide synthase, nuclear factor kappa B, poly ADP ribose polymerase, caspase-3 and Bax all were significantly decreased , though not normalized, in the remnant kidney of T3-Nx group compared to Nx rats...
February 6, 2018: Canadian Journal of Physiology and Pharmacology
Bing Zhang, Zhaocun Zhang, Hong Ji, Hui Shi, Shouzhen Chen, Dongliang Yan, Xuewen Jiang, Benkang Shi
Oxidative stress is closely associated with the onset of diabetes mellitus (DM). Diabetic urethropathy is one of the most common complications of DM, but few studies have been conducted to investigate the role of oxidative stress in diabetic urethropathy. Grape seed proanthocyanidin extract (GSPE) has been previously reported to reduce oxidative injury. The present study aimed to investigate the role of oxidative stress and the protective effects of GSPE on urethral dysfunction using a streptozotocin-induced DM rat model...
January 2018: Experimental and Therapeutic Medicine
Verena Coleman, Piangkwan Sa-Nguanmoo, Jeannette Koenig, Tim J Schulz, Tilman Grune, Susanne Klaus, Anna P Kipp, Mario Ost
Mitochondrial dysfunction is usually associated with various metabolic disorders and ageing. However, salutary effects in response to mild mitochondrial perturbations have been reported in multiple organisms, whereas molecular regulators of cell-autonomous stress responses remain elusive. We addressed this question by asking whether the nuclear factor erythroid-derived-like 2 (Nrf2), a transcription factor and master regulator of cellular redox status is involved in adaptive physiological responses including muscle mitohormesis...
February 5, 2018: Scientific Reports
Xiaoxue Zhang, Renpeng Ji, Huijun Sun, Jinyong Peng, Xiaodong Ma, ChangYuan Wang, Yufeng Fu, Liuchi Bao, Yue Jin
Nonalcoholic fatty liver disease (NAFLD) is characterised by excessive accumulation of hepatic lipids and oxidative injury of hepatocytes. Scutellarin is a flavonoid glycoside having antioxidative stress activity. Our current study aims to investigate the molecular mechanism of scutellarin ameliorating NAFLD. Scutellarin treatment was applied to male C57BL/6 mice maintained on a high-fat diet (HFD) and HepG2 cells challenged with oleic acid. The antioxidation biochemical indicators and lipid levels in the liver and cells were detected by kits...
February 5, 2018: Free Radical Research
Jianyu Zhou, Jianjun Zhang, Chun Wang, Shengsheng Qu, Yingli Zhu, Zhihui Yang, Linyuan Wang
The present study aimed to investigate the therapeutic effects of Euterpe oleracea Mart. (EO) on alcoholic liver diseases (ALD). A total of 30 Wistar rats were randomly divided into three groups (10 rats per group), including alcohol group (alcohol intake), EO group (alcohol + EO puree intake) and control group (distilled water intake). The activity of superoxide dismutase (SOD) and alkaline phosphatase (ALP), alanine aminotransferase (ALT) and aspartate aminotransferase (AST) and the levels of cholesterol (CHO), triglyceride (TG), malondialdehyde (MDA) and glutathione (GSH) in the serum as well as the liver tissue levels of interleukin 8 (IL-8), tumor necrosis factor-α (TNF-α) and transforming growth factor-β (TGF-β) were measured...
January 2018: Experimental and Therapeutic Medicine
Maojun Liu, Yan Li, Biao Liang, Zining Li, Zhengtao Jiang, Chun Chu, Jun Yang
The aim of the present study was to determine the role of hydrogen sulfide (H2S) in improving myocardial fibrosis and its effects on oxidative stress, endoplasmic reticulum (ER) stress and cell apoptosis in diabetic rats, by regulating the Janus kinase̸signal transducer and activator of transcription (JAK̸STAT) signaling pathway. A total of 40 male Sprague‑Dawley rats were randomly divided into four groups (n=10) as follows: normal (control group), diabetes mellitus [streptozotocin (STZ) group], diabetes mellitus treated with H2S (STZ + H2S group), and normal rats treated with H2S (H2S group)...
January 23, 2018: International Journal of Molecular Medicine
Rahul Jandial, Josh Neman, Punnajit P Lim, Daniel Tamae, Claudia M Kowolik, Gerald E Wuenschell, Sarah C Shuck, Alexandra K Ciminera, Luis R De Jesus, Ching Ouyang, Mike Y Chen, John Termini
Cancers that exhibit the Warburg effect may elevate expression of glyoxylase 1 (GLO1) to detoxify the toxic glycolytic byproduct methylglyoxal (MG) and inhibit the formation of pro-apoptotic advanced glycation endproducts (AGEs). Inhibition of GLO1 in cancers that up-regulate glycolysis has been proposed as a therapeutic targeting strategy, but this approach has not been evaluated for glioblastoma multiforme (GBM), the most aggressive and difficult to treat malignancy of the brain. Elevated GLO1 expression in GBM was established in patient tumors and cell lines using bioinformatics tools and biochemical approaches...
January 30, 2018: International Journal of Molecular Sciences
Yi Ding, Danjun Ren, Hang Xu, Wenxing Liu, Tianlong Liu, Liang Li, Jianguang Li, Yuwen Li, AiDong Wen
The nuclear factor erythroid-2-related factor 2 (Nrf2) pathway has been considered as a potential target for neuroprotection in stroke. The aim of present study was to determine whether corilagin, a novel Nrf2 activator, can protect against ischemia-reperfusion injury and explore the underlying mechanism involved. In vivo, rats exposed to middle cerebral artery occlusion were applied to establish an ischemic stroke model. Posttreatment of corilagin significantly reduced infarct volumes and apoptotic cells as well as improved neurologic score after reperfusion, together with increased vascular density in the ischemic penumbra...
December 29, 2017: Oncotarget
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