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https://www.readbyqxmd.com/read/29435026/dha-induces-apoptosis-of-human-malignant-breast-cancer-tissues-by-the-tlr-4-ppar-%C3%AE-pathways
#1
Lijing Geng, Wei Zhou, Bing Liu, Xinyun Wang, Bo Chen
Docosahexaenoic acid (DHA) oil is an important polyunsaturated fatty acid for the human body. Evidence has demonstrated that DHA is beneficial for inhibiting mammary carcinogenesis. However, the mechanisms of DHA mediating apoptosis induction have not been fully elucidated. Thus, in the present study, the activity levels of total-superoxide dismutase (t-SOD), catalase (CAT), glutathione-peroxidase (GSH-PX) and the concentration of malondialdehyde (MDA) were determined in DHA oil-treated human malignant breast tissues...
March 2018: Oncology Letters
https://www.readbyqxmd.com/read/29383139/dihydroartemisinin-attenuates-autoimmune-thyroiditis-by-inhibiting-the-cxcr3-pi3k-akt-nf-%C3%AE%C2%BAb-signaling-pathway
#2
Huijuan Liu, Qin Tian, Xiaoyu Ai, Yuan Qin, Zhanhong Cui, Meng Li, Jiahuan Yang, Denghui Zhai, Yanrong Liu, Shuang Chen, Jing Meng, Tao Sun, Honggang Zhou, Cheng Yang
Dihydroartemisinin (DHA) is the first generation of naturally occurring artemisinin derivatives with antimalarial activity. Recent research showed that this drug also features immunosuppressive and anti-inflammatory properties. Autoimmune thyroiditis (AIT) is a common organ-specific autoimmune disease with no available effective drug treatment. In this study, we investigated effects of DHA on AIT in vitro and in vivo. Results showed that DHA can visibly reduce antithyroglobulin antibody and thyroid peroxidase antibody levels and regulate T helper cells (Th) 1/Th2 imbalance of experimental AIT mice...
December 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/29229551/modulation-of-reactive-oxygen-species-via-erk-and-stat3-dependent-signalling-are-involved-in-the-response-of-mesothelioma-cells-to-exemestane
#3
Barbara Nuvoli, Emanuela Camera, Arianna Mastrofrancesco, Stefania Briganti, Rossella Galati
Pleural mesothelioma is a deadly form of cancer. The prognosis is extremely poor due to the limited treatment modalities. Uptake of asbestos fibres, the leading cause of mesothelioma, lead to the accumulation of reactive-oxygen-species (ROS). Interestingly, increasing ROS production by using ROS-generating drugs may offer a strategy to selectively trigger cell death. Exemestane, an aromatase inhibitor, has previously shown anti-tumor properties in mesothelioma preclinical models suggesting a role of G protein-coupled receptor 30 (GPR30) in the drug response...
December 8, 2017: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/29207011/astragaloside-iv-prevents-kidney-injury-caused-by-iatrogenic-hyperinsulinemia-in-a-streptozotocin%C3%A2-induced-diabetic-rat-model
#4
Ke-Qiang He, Wei-Zu Li, Xiao-Qing Chai, Yan-Yan Yin, Yan Jiang, Wei-Ping Li
Diabetic patients are able to manage their blood glucose with exogenous insulin but, ultimately, remain at risk of diabetic nephropathy (DN). Long‑term use of insulin may lead to iatrogenic hyperinsulinemia, which has been suggested to cause kidney injury. However, there are no effective interventions for iatrogenic hyperinsulinemia leading to kidney damage. In the present paper, the hypothesis that astragaloside IV (AS‑IV), a novel saponin purified from Astragalus membranaceus (Fisch) Bunge, may prevent DN in iatrogenic hyperinsulinemic diabetic rats through antioxidative and anti‑inflammatory mechanisms was investigated...
November 17, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/29174039/lavatera-critica-a-green-leafy-vegetable-controls-high-fat-diet-induced-hepatic-lipid-accumulation-and-oxidative-stress-through-the-regulation-of-lipogenesis-and-lipolysis-genes
#5
Chinnadurai Veeramani, Mohammed A Alsaif, Khalid S Al-Numair
BACKGROUND: Lipid accumulation is the most vital risk factor for inducing nonalcoholic fatty liver disease (NAFLD) and metabolic syndrome. Thus, the development of novel drugs is urgently needed to control obesity related diseases. OBJECTIVE: Here, we investigated the protective role of Lavatera critica (LC), a green vegetable, in male C57BL/6J mice fed with high fat (HF) diet for 10 weeks to induce hepatic lipid accumulation and oxidative cellular damage. RESULTS: After oral administration of chloroform (CFLC), ethyl acetate (EFLC), or methanol (MFLC) fractions of Lavatera critica to the HF group, EALC alone significantly reduced the activities of hepatic markers such as alanine aminotransferase (ALT) and aspartate aminotransferase (AST); moreover, the results showed that 50 mg/kg dose has the maximum activity...
November 22, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29118419/melatonin-promotes-triacylglycerol-accumulation-via-mt2-receptor-during-differentiation-in-bovine-intramuscular-preadipocytes
#6
Wucai Yang, Keqiong Tang, Yaning Wang, Yingying Zhang, Linsen Zan
Melatonin (N-acetyl-5-methoxytryptamine) is a derivative of tryptophan which is produced and secreted mainly by the pineal gland and regulates a variety of important central and peripheral actions. To examine the potential effects of melatonin on the proliferation and differentiation of bovine intramuscular preadipocytes (BIPs), BIPs were incubated with different concentrations of melatonin. Melatonin supplementation at 1 mM significantly increased peroxisome proliferator-activated receptor γ (PPARγ), CCAAT/enhancer-binding protein (C/EBP) β, and C/EBPα expression and promoted the differentiation of BIPs into adipocytes with large lipid droplets and high cellular triacylglycerol (TAG) levels...
November 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29048364/protective-effect-of-argan-and-olive-oils-against-lps-induced-oxidative-stress-and-inflammation-in-mice-livers
#7
Soufiane El Kamouni, Riad El Kebbaj, Pierre Andreoletti, Abderrahim El Ktaibi, Issam Rharrassi, Abdelkhalid Essamadi, M'hammed Saïd El Kebbaj, Stéphane Mandard, Norbert Latruffe, Joseph Vamecq, Boubker Nasser, Mustapha Cherkaoui-Malki
Sepsis causes severe dysregulation of organ functions, via the development of oxidative stress and inflammation. These pathophysiological mechanisms are mimicked in mice injected with bacterial lipopolysaccharide (LPS). Here, protective properties of argan oil against LPS-induced oxidative stress and inflammation are explored in the murine model. Mice received standard chow, supplemented with argan oil (AO) or olive oil (OO) for 25 days, before septic shock was provoked with a single intraperitoneal injection of LPS, 16 hours prior to animal sacrifice...
October 19, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28962559/neuro-protective-effect-of-rutin-against-cisplatin-induced-neurotoxic-rat-model
#8
Mashal M Almutairi, Wael A Alanazi, Musaad A Alshammari, Moureq Rashed Alotaibi, Ali R Alhoshani, Salim Salah Al-Rejaie, Mohamed M Hafez, Othman A Al-Shabanah
BACKGROUND: Cisplatin is widely used chemotherapeutic agent for cancer treatment with limited uses due to its neurotoxic side effect. The aim of this study was to determine the potential preventive effects of rutin on the brain of cisplatin- neurotoxic rat model. METHODS: Forty rats were divided into four groups. Group-1 (control group) was intra-peritoneal (IP) injected with 2.5 ml/kg saline. Group-2 (rutin group) was orally administrated 30 mg/kg rutin dissolved in water for 14 days...
September 29, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28803762/apigenin-protects-against-alcohol-induced-liver-injury-in-mice-by-regulating-hepatic-cyp2e1-mediated-oxidative-stress-and-ppar%C3%AE-mediated-lipogenic-gene-expression
#9
Feng Wang, Jin-Cheng Liu, Rui-Jun Zhou, Xi Zhao, Mei Liu, Hua Ye, Mei-Lin Xie
Alcohol is a major cause of liver injury, and there are currently no ideal pharmacological reagents that can prevent or reverse this disease. Apigenin is one of the most common flavonoids present in numerous plants and has many beneficial effects. But whether or not apigenin may protect against alcohol-induced liver injury remains unknown. Our aim was to examine the effect and potential mechanisms. The experimental mice were given 56% erguotou wine or simultaneously given apigenin 150-300 mg/kg by gavage for 30 days...
September 25, 2017: Chemico-biological Interactions
https://www.readbyqxmd.com/read/28668760/effect-of-contaminants-of-emerging-concern-on-liver-mitochondrial-function-in-chinook-salmon
#10
Andrew Yeh, David J Marcinek, James P Meador, Evan P Gallagher
We previously reported the bioaccumulation of contaminants of emerging concern (CECs), including pharmaceuticals and personal care products (PPCPs) and perfluorinated compounds, in field-collected juvenile Chinook salmon from urban estuaries of Puget Sound, WA (Meador et al., 2016). Although the toxicological impacts of CECs on salmon are poorly understood, several of the detected contaminants disrupt mitochondrial function in other species. Here, we sought to determine whether environmental exposures to CECs are associated with hepatic mitochondrial dysfunction in juvenile Chinook...
September 2017: Aquatic Toxicology
https://www.readbyqxmd.com/read/28634113/vitamin-d3-supplementation-attenuates-the-early-stage-of-mouse-hepatocarcinogenesis-promoted-by-hexachlorobenzene-fungicide
#11
Guilherme R Romualdo, Renata L Goto, Ana A H Fernandes, Bruno Cogliati, Luis F Barbisan
Hexachlorobezene (HCB), a fungicide widely distributed in the environment, promotes the development of hepatocellular preneoplastic lesions (PNL) and tumors in rodents. In contrast, vitamin D3 (VD3) supplementation presents a potential role for the prevention/treatment of chronic liver diseases. Thus, we investigated whether VD3 supplementation attenuates the early stage of HCB-promoted hepatocarcinogenesis. Female Balb/C mice were injected a single dose of diethylnitrosamine (DEN, 50 mg/kg) at postnatal day 15...
September 2017: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/28627583/deoxyactein-protects-pancreatic-%C3%AE-cells-against-methylglyoxal-induced-oxidative-cell-damage-by-the-upregulation-of-mitochondrial-biogenesis
#12
Kwang Sik Suh, Eun Mi Choi, Woon-Won Jung, Yu Jin Kim, Soo Min Hong, So Yong Park, Sang Youl Rhee, Suk Chon
Methylglyoxal (MG) is one of the major precursors of advanced glycation end products (AGEs), which are considered to be one of the causes of diabetes and its complications. The root and rhizomes of black cohosh (Cimicifuga racemosa) have long been used medicinally, and deoxyactein is one of its major constituents. In the present study, the protective effects of deoxyactein against MG-induced oxidative cell damage were investigated in insulin-producing pancreatic β-cells. We found that deoxyactein protected the pancreatic β-cells against MG-induced cell death...
June 12, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28600747/sodium-butyrate-protects-against-oxidative-stress-in-hepg2-cells-through-modulating-nrf2-pathway-and-mitochondrial-function
#13
Xingan Xing, Zheshu Jiang, Xue Tang, Panpan Wang, Yingrui Li, Yongjuan Sun, Guowei Le, Sixiang Zou
Sodium butyrate (NaBu) is a by-product of microbial fermentation of dietary fiber in the gastrointestinal tract and has been shown to increase the activity of antioxidant enzymes, such as catalase or heme oxidase-1, in vivo. However, the mechanism of this effect is still unclear. This study investigated the antioxidant effect of NaBu on HepG2 cells under H2O2-induced oxidative stress. NaBu (0.3 mM) attenuated cell death and accumulation of reactive oxygen species and improved multiple antioxidant parameters in H2O2-injured HepG2 cells...
August 2016: Journal of Physiology and Biochemistry
https://www.readbyqxmd.com/read/28500970/histopathological-changes-and-lipid-metabolism-in-the-liver-of-bufo-gargarizans-tadpoles-exposed-to-triclosan
#14
Lihong Chai, Aixia Chen, Pingping Luo, Hongfeng Zhao, Hongyuan Wang
In the current study, the adverse effects of TCS on liver health of B. gargarizans tadpoles were assessed. B. gargarizans larvae were exposed to TCS at 0, 10, 30, 60, and 150 μg L(-1) from Gosner stage 3 until metamorphic climax. The hepatosomatic index (HSI), hepatic histological and ultrastructural features, and transcript levels of genes associated with detoxification and oxidative stress as well as lipid metabolism in the livers were determined. Exposure to 150 μg L(-1) TCS resulted in increased HSI of tadpoles at metamorphic climax...
September 2017: Chemosphere
https://www.readbyqxmd.com/read/28486193/wogonin-mitigates-nonalcoholic-fatty-liver-disease-via-enhancing-ppar%C3%AE-adipor2-in-vivo-and-in-vitro
#15
Jing Chen, Jie Liu, Ye Wang, Xuemei Hu, Feng Zhou, Yimeng Hu, Yin Yuan, Yancheng Xu
Wogonin has been reported to attenuate hyperglycemia in diabetic mice via anti-adipogenic effect on adipocytes. The potential therapeutic role of wogonin in nonalcoholic fatty liver disease (NAFLD) remains obscure. The aim of the present study was to explore the protective effect of wogonin on NAFLD mice and cultured NCTC 1469 cells exposed to palmitate. Wogonin supplementation significantly improved metabolic parameters in NAFLD mice, including body weight, blood glucose, insulin resistance, adiponectin, blood lipids, aminotransferases and hepatic histopathology...
July 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28465000/long-term-soft-drink-and-aspartame-intake-induces-hepatic-damage-via-dysregulation-of-adipocytokines-and-alteration-of-the-lipid-profile-and-antioxidant-status
#16
Mohamed A Lebda, Hossam G Tohamy, Yasser S El-Sayed
Dietary intake of fructose corn syrup in sweetened beverages is associated with the development of metabolic syndrome and obesity. We hypothesized that inflammatory cytokines play a role in lipid storage and induction of liver injury. Therefore, this study intended to explore the expression of adipocytokines and its link to hepatic damage. Rats were assigned to drink water, cola soft drink (free access) and aspartame (240 mg/kg body weight/day orally) for 2 months. The lipid profiles, liver antioxidants and pathology, and mRNA expression of adipogenic cytokines were evaluated...
May 2017: Nutrition Research
https://www.readbyqxmd.com/read/28387563/curcumin-upregulates-antioxidant-defense-lon-protease-and-heat-shock-protein-70-under-hyperglycemic-conditions-in-human-hepatoma-cells
#17
Shivona Gounden, Anil Chuturgoon
Sirtuin 3 (SIRT3) regulates mitochondrial antioxidant (AO) defense and improves mitochondrial disorders. Curcumin protects mitochondria; however, the mechanisms need investigation. We postulated that curcumin increases AO defense under hyperglycemic conditions in HepG2 cells through SIRT3-mediated mechanisms. Cell viability was determined in HepG2 cells cultured with 5 mM glucose, 19.9 mM mannitol, vehicle control, 10 mM glucose, and 30 mM glucose in the absence or presence of curcumin for 24 h. SIRT3, nuclear factor-kappa B (NF-κB), heat-shock protein 70 (Hsp70), and Lon protein expressions were determined using western blot...
May 2017: Journal of Medicinal Food
https://www.readbyqxmd.com/read/28261494/radioprotective-effects-of-cimetidine-on-rats-irradiated-by-long-term-low-dose-rate-neutrons-and-60-co-%C3%AE-rays
#18
Ding-Wen Jiang, Qing-Rong Wang, Xian-Rong Shen, Ying He, Tian-Tian Qian, Qiong Liu, Deng-Yong Hou, Yu-Ming Liu, Wei Chen, Xin Ren, Ke-Xian Li
BACKGROUND: Cimetidine, an antagonist of histamine type II receptors, has shown protective effects against γ-rays or neutrons. However, there have been no reports on the effects of cimetidine against neutrons combined with γ-rays. This study was carried out to evaluate the protective effects of cimetidine on rats exposed to long-term, low-dose-rate neutron and γ-ray combined irradiation (n-γ LDR). METHODS: Fifty male Sprague-Dawley (SD) rats were randomly divided into 5 groups: the normal control group, radiation model group, 20 mg/(kg · d) cimetidine group, 80 mg/(kg · d) cimetidine group and 160 mg/(kg · d) cimetidine group (10 rats per group)...
2017: Military Medical Research
https://www.readbyqxmd.com/read/28211759/gamma-tocopherol-supplementation-ameliorated-hyper-inflammatory-response-during-the-early-cutaneous-wound-healing-in-alloxan-induced-diabetic-mice
#19
Jihyun Shin, Soo Jin Yang, Yunsook Lim
Delayed wound healing is one of the major diabetic complications. During wound healing process, the early inflammatory stage is important for better prognosis. One of antioxidant nutrient, gamma-tocopherol (GT) is considered to regulate inflammatory conditions. This study investigated the effect of GT supplementation on mechanism associated with inflammation, oxidative stress, and apoptosis during early cutaneous wound healing in diabetic mice. Diabetes was induced by alloxan injection in ICR mice. All mice were divided into three groups: non-diabetic control mice (CON), diabetic control mice (DMC), and diabetic mice supplemented with GT (GT)...
March 2017: Experimental Biology and Medicine
https://www.readbyqxmd.com/read/28177670/effect-of-vitamin-d-on-isoprenaline-induced-myocardial-infarction-in-rats-possible-role-of-peroxisome-proliferator-activated-receptor-%C3%AE
#20
Ola Ahmed El-Gohary, Mona Maher Allam
Infarct-like lesion induced by isoprenaline is a well-known model to study myocardial infarction (MI). Vitamin D has been shown to have anti-inflammatory and antioxidant effects. Recent studies highlighted cross talk between vitamin D and peroxisome proliferator-activated receptor gamma (PPAR-γ). The present study was designed to investigate the effect of pretreatment with vitamin D on the isoprenaline-induced infarct-like lesion in rats and the role of PPAR-γ as a novel mechanism in vitamin-D-mediated cardioprotective effect...
January 22, 2017: Canadian Journal of Physiology and Pharmacology
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