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Wang S, Wu D, Wu F, Sun H, Wang X, Meng H, Lin Q, Jin K, Wang F. Prevotella histicola suppresses ferroptosis to mitigate ethanol-induced gastric mucosal lesions in mice. BMC Complement Med Ther 2023; 23:118. [PMID: 37060026 PMCID: PMC10103513 DOI: 10.1186/s12906-023-03946-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Accepted: 04/04/2023] [Indexed: 04/16/2023] Open
Abstract
BACKGROUND Ethanol-induced gastric mucosal lesions (EGML) is one of the most common digestive disorders for which current therapies have limited outcomes in clinical practice. Prevotella histicola (P. histicola) has shown probiotic efficacy against arthritis, multiple sclerosis and oestrogen deficiency-induced depression in mice; however, its role in EGML remains unclear in spite of its extensive colonisation of the stomach. Ferroptosis, which is characterised by lipid peroxidation, may be involved in EGML. Herein, we aimed to investigate the effects and underlying mechanism of action of P. histicola on EGML in the ferroptosis-dependent pathway. METHODS P. histicola was intragastrically administered for a week, and deferoxamine (DFO), a ferroptosis inhibitor, was intraperitoneally injected prior to oral ethanol administration. The gastric mucosal lesions and ferroptosis were assessed via histopathological examinations, quantitative real-time PCR, Western blot, immunohistochemistry and immunofluorescence. RESULTS P. histicola was originally found to attenuate EGML by reducing histopathological changes and lipid reactive oxygen species (ROS) accumulation. The pro-ferroptotic genes of Transferrin Receptor (TFR1), Solute Carrier Family 39 Member 14 (SLC39A14), Haem Oxygenase-1 (HMOX-1), Acyl-CoA Synthetase Long-chain Family Member 4 (ACSL4), Cyclooxygenase 2 (COX-2) and mitochondrial Voltage-dependent Anion Channels (VDACs) were up-regulated; the anti-ferroptotic System Xc-/Glutathione Peroxidase 4 (GPX4) axis was inhibited after ethanol administration. However, the changes of histopathology and ferroptosis-related parameters induced by ethanol were reversed by DFO. Furthermore, P. histicola treatment significantly downregulated the expression of ACSL4, HMOX-1 and COX-2, as well as TFR1 and SLC39A14, on mRNA or the protein level, while activating the System Xc-/GPX4 axis. CONCLUSIONS We found that P. histicola reduces ferroptosis to attenuate EGML by inhibiting the ACSL4- and VDAC-dependent pro-ferroptotic pathways and activating the anti-ferroptotic System Xc-/GPX4 axis.
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Affiliation(s)
- Sisi Wang
- School of Basic Medical Sciences, Wenzhou Medical University, Wenzhou, China
| | - Du Wu
- Hangzhou Wuyunshan Hospital Hangzhou Health Promotion Institution, Hangzhou, China
| | - Fangquan Wu
- School of Basic Medical Sciences, Wenzhou Medical University, Wenzhou, China
| | - Hongxia Sun
- School of Basic Medical Sciences, Wenzhou Medical University, Wenzhou, China
| | - Xinyu Wang
- School of Basic Medical Sciences, Wenzhou Medical University, Wenzhou, China
| | - Hongbing Meng
- School of Basic Medical Sciences, Wenzhou Medical University, Wenzhou, China
| | - Qingqing Lin
- Department of Hemodialysis, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Keke Jin
- School of Basic Medical Sciences, Wenzhou Medical University, Wenzhou, China.
| | - Fangyan Wang
- School of Basic Medical Sciences, Wenzhou Medical University, Wenzhou, China.
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Wołosowicz M, Dajnowicz-Brzezik P, Łukaszuk B, Żebrowska E, Maciejczyk M, Zalewska A, Kasacka I, Chabowski A. Diverse impact of N-acetylcysteine or alpha-lipoic acid supplementation during high-fat diet regime on fatty acid transporters in visceral and subcutaneous adipose tissue. Adv Med Sci 2022; 67:216-228. [PMID: 35594763 DOI: 10.1016/j.advms.2022.05.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Revised: 03/16/2022] [Accepted: 05/08/2022] [Indexed: 11/20/2022]
Abstract
PURPOSE Adipose tissue's (AT) structural changes accompanying obesity may alter lipid transport protein expression and, thus, the fatty acids (FAs) transport and lipid balance of the body. Metabolic abnormalities within AT contribute to the elevated production of reactive oxygen species and increased oxidative/nitrosative stress. Although compounds such as N-acetylcysteine (NAC) and α-lipoic acid (ALA), which restore redox homeostasis, may improve lipid metabolism in AT, the mechanism of action of these antioxidants on lipid metabolism in AT is still unknown. This study aimed to examine the impact of NAC and ALA on the level and FA composition of the lipid fractions, and the expression of FA transporters in the visceral and subcutaneous AT of high-fat diet-fed rats. MATERIALS AND METHODS Male Wistar rats were randomly divided into four groups. The mRNA levels and protein expression of FA transporters were assessed using real-time PCR and Western Blot analyses. The collected samples were subjected to histological evaluation. The level of lipids (FFA, DAG, and TAG) was measured using gas-liquid chromatography. RESULTS We found that antioxidants affect FA transporter expressions at both the transcript and protein levels, and, therefore, they promote changes in AT's lipid pools. One of the most remarkable findings of our research is that different antioxidant molecules may have a varying impact on AT phenotype. CONCLUSION NAC and ALA exert different influences on AT, which is reflected in histopathological images, FA transport proteins expression patterns, or even the lipid storage capacity of adipocytes.
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Affiliation(s)
- Marta Wołosowicz
- Department of Physiology, Medical University of Bialystok, Bialystok, Poland.
| | | | - Bartłomiej Łukaszuk
- Department of Physiology, Medical University of Bialystok, Bialystok, Poland
| | - Ewa Żebrowska
- Department of Physiology, Medical University of Bialystok, Bialystok, Poland
| | - Mateusz Maciejczyk
- Department of Hygiene, Epidemiology and Ergonomics, Medical University of Bialystok, Bialystok, Poland
| | - Anna Zalewska
- Experimental Dentistry Laboratory, Medical University of Bialystok, Bialystok, Poland
| | - Irena Kasacka
- Department of Histology and Cytophysiology, Medical University of Bialystok, Bialystok, Poland
| | - Adrian Chabowski
- Department of Physiology, Medical University of Bialystok, Bialystok, Poland
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Ma S, Wu Q, Zhao Z, Xiong J, Niu J, Liu C, Liu T, Chai Y, Qu X, Ma Z, Zhang L, Pu X. Mechanisms of Dendrobium officinale polysaccharides in repairing gastric mucosal injuries based on mitogen-activated protein kinases (MAPK) signaling pathway. Bioengineered 2021; 13:71-82. [PMID: 34898361 PMCID: PMC8805811 DOI: 10.1080/21655979.2021.2006951] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The present study aimed to investigate the protective effects and molecular mechanisms of Dendrobium officinale polysaccharides on gastric mucosal injuries. Following one week of continuous intragastric administration, a gastric mucosal injury model was established using intragastric administration of anhydrous ethanol. The area of gastric ulcer was measured, the contents of interleukin- 6 (IL-6), epidermal growth factor receptor (EGFR), and thyroid transcription factor 1 (TFF-1) in serum were detected by enzyme linked immunosorbent assay (ELISA), and the expressions of EGFR, TFF-1, IL-6, Raf-2, MAP kinase kinase 1 (MEK1), MEK2, and ERK1 in the gastric tissue were determined utilizing qPCR, Western blotting and immunohistochemistry. Simultaneously, Dendrobium officinale polysaccharides and anhydrous ethanol were added to the gastric mucosal cells (GES1) cultured in vitro, and the protective effects of Dendrobium officinale polysaccharides on cell viability was detected using Cell Counting Kit (CCK)-8. The addition of Dendrobium officinale polysaccharides markedly improved the gastric epithelial defect, inflammatory cell infiltration, and redness and swelling stemmed from gastric mucosal injuries and greatly reduced the area of gastric ulcer. The inhibition rates of gastric ulcer were 48.12 ± 2.98, 42.95 ± 1.52, and 27.96 ± 2.05% in the high, medium, and low concentration Dendrobium officinale polysaccharide groups, respectively. Dendrobium officinale polysaccharides could increase the expressions of EGFR and TFF-1 and decrease the expressions of IL-6, Raf-2, MEK1, MEK2, and ERK1. Dendrobium officinale polysaccharides could reduce the level of inflammatory factors and protect gastric mucosa by inhibiting the expression of MAPK pathway genes and proteins.
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Affiliation(s)
- Sibu Ma
- College of Humanities and Management, Guizhou University of Traditional Chinese Medicine, China
| | - Qiong Wu
- School of Pharmacy, Guizhou University of Traditional Chinese Medicine, China
| | - Zelin Zhao
- School of Pharmacy, Guizhou University of Traditional Chinese Medicine, China
| | - Jiangyan Xiong
- The First Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, China
| | - Jianjun Niu
- Dejiang Nation Hospital of Traditional Chinese Medicine, Dejiang County, Tongren City, Guizhou Province, China
| | - Chunyan Liu
- Dejiang Nation Hospital of Traditional Chinese Medicine, Dejiang County, Tongren City, Guizhou Province, China
| | - Tingjiang Liu
- The Second Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, China
| | - Yihui Chai
- School of Basic Medicine, Guizhou University of Traditional Chinese Medicine, China
| | - Xiangling Qu
- The Second Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, China
| | - Zili Ma
- School of Pharmacy, Guizhou University of Traditional Chinese Medicine, China
| | - Liyan Zhang
- School of Pharmacy, Guizhou University of Traditional Chinese Medicine, China
| | - Xiang Pu
- School of Basic Medicine, Guizhou University of Traditional Chinese Medicine, China
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N-acetylcysteine supplementation did not reverse mitochondrial oxidative stress, apoptosis, and inflammation in the salivary glands of hyperglycemic rats. Nutr Diabetes 2021; 11:35. [PMID: 34753902 PMCID: PMC8578428 DOI: 10.1038/s41387-021-00177-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/03/2021] [Revised: 09/20/2021] [Accepted: 10/22/2021] [Indexed: 12/30/2022] Open
Abstract
Background/objectives Previous studies have shown that N-acetylcysteine (NAC) supplementation with the simultaneous inclusion of HFD prevents salivary glands from oxidative stress and mitochondrial dysfunction. In this experiment, we examined if NAC supplementation could reverse the harmful effect of HFD on mitochondrial function, reduce the severity of apoptosis, and the activity of pro-oxidative enzymes in the salivary glands of rats with confirmed hyperglycemia. Subjects/methods Wistar rats were fed the standard or high-fat (HFD) diet for 10 weeks. After 6 weeks of the experiment, HFD rats were diagnosed with hyperglycemia and for the next 4 weeks, the animals were given NAC intragastrically. In the mitochondrial fraction of the parotid (PG) and submandibular salivary glands (SMG), we assessed redox status, inflammation, and apoptosis. Results The inclusion of NAC increased the activity of mitochondrial complexes I and II + III as well as decreased the concentration of interleukin-1β, tumor necrosis factor α, and caspase-3, but only in the parotid glands of rats with hyperglycemia compared to the HFD group. However, N-acetylcysteine supplementation did not reduce the activity of caspase-9 or the Bax/Bcl-2 ratio in PG and SMG mitochondria. In both salivary glands we observed reduced activity of cytochrome c oxidase, NADPH oxidase, and xanthine oxidase, as well as hindered production of ROS and lower ADP/ATP radio, but the levels of these parameters were not comparable to the control group. Conclusions We demonstrated that NAC supplementation restores the glutathione ratio only in the mitochondria of the submandibular salivary glands. The supply of NAC did not significantly affect the other measured parameters. Our results indicate that NAC supplementation provides little protection against free radicals, apoptosis, and inflammation in the salivary gland mitochondria of HFD rats. Stimulated salivary secretion in hyperglycaemic rats supplemented with NAC seems to be closely related to mitochondrial respiratory capacity and appropriate ATP level.
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NAC Supplementation of Hyperglycemic Rats Prevents the Development of Insulin Resistance and Improves Antioxidant Status but Only Alleviates General and Salivary Gland Oxidative Stress. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2020; 2020:8831855. [PMID: 33274008 PMCID: PMC7683161 DOI: 10.1155/2020/8831855] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Revised: 10/15/2020] [Accepted: 11/02/2020] [Indexed: 12/13/2022]
Abstract
Previous studies based on animal models demonstrated that N-acetylcysteine (NAC) prevents oxidative stress and improves salivary gland function when the NAC supplementation starts simultaneously with insulin resistance (IR) induction. This study is the first to evaluate the effect of a 4-week NAC supply on the antioxidant barrier and oxidative stress in Wistar rats after six weeks of high-fat diet (HFD) intake. Redox biomarkers were evaluated in the parotid (PG) and submandibular (SMG) salivary glands and stimulated whole saliva (SWS), as well as in the plasma and serum. We demonstrated that the activity of salivary peroxidase and superoxide dismutase and total antioxidant capacity were significantly higher in PG, SMG, and SWS of IR rats treated with NAC. It appears that in PG and SMG of rats fed an HFD, N-acetylcysteine supplementation abolishes oxidative modifications to proteins (evidenced by decreased content of advanced oxidation protein products (AOPP) and advanced glycation end products (AGE)). Simultaneously, it does not reverse oxidative modifications of lipids (as seen in increased concentration of 8-isoprostanes and 4-hydroxynonenal vs. the control), although it reduces the peroxidation of salivary lipids in relation to the group fed a high-fat diet alone. NAC administration increased protein levels in PG and SMG but did not affect saliva secretion, which was significantly lower compared to the controls. To sum up, the inclusion of NAC supplementation after six weeks of HFD feeding was effective in improving the general and salivary gland antioxidant status. Nevertheless, NAC did not eliminate salivary oxidative stress and only partially prevented salivary gland dysfunction.
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Dobrek L, Nalik-Iwaniak K, Fic K, Arent Z. The Effect of Acetylcysteine on Renal Function in Experimental Models of Cyclophosphamide-and Ifosfamide-Induced Cystitis. Curr Urol 2020; 14:150-162. [PMID: 33224008 DOI: 10.1159/000499245] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2019] [Accepted: 12/12/2019] [Indexed: 01/17/2023] Open
Abstract
Introduction Urotoxicity is a characteristic attribute of cy-clophosphamide and ifosfamide. Acetylcysteine is perceived as a uroprotective and possible nephroprotective compound. The purpose of the study was to assess the effect of acetylcysteine treatment on the morphology of the kidneys and the urinary bladder, and renal function in rats with cystitis induced by cyclophosphamide or ifosfamide. Methods Cystitis was induced in rats belonging to groups 2 and 3, as well as 4 and 5, by five administrations of cyclophosphamide (75 mg/kg) or ifosfamide (80 mg/kg) respectively. Additionally, groups 3 and 5 received acetylcysteine (200 mg/kg). Group 1 was "sham treated" as a control. Upon conclusion of the experiment, the animals were euthanized and their kidneys and urinary bladders were collected for histopathological analysis. The assessment of renal function was based on classic nitrogen blood parameters (urea, creatinine, and uric acid), as well as proteinuria and cystatin C (CysC) and kidney injury molecule-1 (KIM-1) urinary concentrations, and their 24-hour elimination with urine. Results Reduction of blood urea nitrogen and uric acid, and urinary pH with a significant increase of CysC and KIM-1 urinary concentrations, and their 24-hour elimination with urine were observed in groups 2 and 4. The acetylcysteine treatment did not cause a significant change of blood parameters, but significantly decreased 24-hour elimination of CysC and KIM-1 with urine, and accounted for alleviation of the histopathological abnormalities of urinary bladders, with no significant effects on the structure of the kidneys. Conclusions Acetylcysteine used in the experimental model of cyclophosphamide- and ifosfamide-induced cystitis had a uroprotective effect and also reduced renal dysfunction, which suggests its potential use as a nephroprotective compound in cyclophosphamide/ifosfamide therapy.
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Affiliation(s)
- Lukasz Dobrek
- Department of Clinical Pharmacology, Wroclaw Medical University, Wroclaw, Poland
| | - Klaudia Nalik-Iwaniak
- Experimental and Innovative Medicine Centre, University Centre of Veterinary Medicine UJ-UR, University of Agriculture in Krakow, Krakow, Poland
| | - Kinga Fic
- Experimental and Innovative Medicine Centre, University Centre of Veterinary Medicine UJ-UR, University of Agriculture in Krakow, Krakow, Poland
| | - Zbigniew Arent
- Experimental and Innovative Medicine Centre, University Centre of Veterinary Medicine UJ-UR, University of Agriculture in Krakow, Krakow, Poland
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Yu L, Li R, Liu W, Zhou Y, Li Y, Qin Y, Chen Y, Xu Y. Protective Effects of Wheat Peptides against Ethanol-Induced Gastric Mucosal Lesions in Rats: Vasodilation and Anti-Inflammation. Nutrients 2020; 12:nu12082355. [PMID: 32784583 PMCID: PMC7469019 DOI: 10.3390/nu12082355] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2020] [Revised: 07/30/2020] [Accepted: 08/03/2020] [Indexed: 02/07/2023] Open
Abstract
Alcohol consumption increases the risk of gastritis and gastric ulcer. Nutritional alternatives are considered for relieving the progression of gastric mucosal lesions instead of conventional drugs that produce side effects. This study was designed to evaluate the gastroprotective effects and investigate the defensive mechanisms of wheat peptides against ethanol-induced acute gastric mucosal injury in rats. Sixty male Sprague-Dawley rats were divided into six groups and orally treated with wheat peptides (0.1, 0.2, 0.4 g/kgbw) and omeprazole (20 mg/kgbw) for 4 weeks, following absolute ethanol administration for 1 h. Pretreatment with wheat peptides obviously enhanced the vasodilation of gastric mucosal blood vessels via improving the gastric mucosal blood flow and elevating the defensive factors nitric oxide (NO) and prostaglandin E2 (PGE2), and lowering the level of vasoconstrictor factor endothelin (ET)-1. Wheat peptides exhibited anti-inflammatory reaction through decreasing inducible nitric oxide synthase (iNOS) and pro-inflammatory cytokines tumor necrosis factor α (TNF-α), interleukin (IL)-1β, IL-6, and increasing trefoil factor 1 (TFF1) levels. Moreover, wheat peptides significantly down-regulated the expression of phosphorylated nuclear factor kappa-B (p-NF-κB) p65 proteins in the NF-κB signaling pathway. Altogether, wheat peptides protect gastric mucosa from ethanol-induced lesions in rats via improving the gastric microcirculation and inhibiting inflammation mediated by the NF-κB signaling transduction pathway.
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Affiliation(s)
- Lanlan Yu
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing 100083, China; (L.Y.); (R.L.); (W.L.); (Y.Z.); (Y.L.); (Y.Q.); (Y.C.)
| | - Ruijun Li
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing 100083, China; (L.Y.); (R.L.); (W.L.); (Y.Z.); (Y.L.); (Y.Q.); (Y.C.)
| | - Wei Liu
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing 100083, China; (L.Y.); (R.L.); (W.L.); (Y.Z.); (Y.L.); (Y.Q.); (Y.C.)
| | - Yalin Zhou
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing 100083, China; (L.Y.); (R.L.); (W.L.); (Y.Z.); (Y.L.); (Y.Q.); (Y.C.)
| | - Yong Li
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing 100083, China; (L.Y.); (R.L.); (W.L.); (Y.Z.); (Y.L.); (Y.Q.); (Y.C.)
| | - Yong Qin
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing 100083, China; (L.Y.); (R.L.); (W.L.); (Y.Z.); (Y.L.); (Y.Q.); (Y.C.)
| | - Yuhan Chen
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing 100083, China; (L.Y.); (R.L.); (W.L.); (Y.Z.); (Y.L.); (Y.Q.); (Y.C.)
| | - Yajun Xu
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing 100083, China; (L.Y.); (R.L.); (W.L.); (Y.Z.); (Y.L.); (Y.Q.); (Y.C.)
- Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, Peking University, Beijing 100083, China
- Correspondence: ; Tel.: +86-10-8280-2552
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Zalewska A, Szarmach I, Żendzian-Piotrowska M, Maciejczyk M. The Effect of N-Acetylcysteine on Respiratory Enzymes, ADP/ATP Ratio, Glutathione Metabolism, and Nitrosative Stress in the Salivary Gland Mitochondria of Insulin Resistant Rats. Nutrients 2020; 12:nu12020458. [PMID: 32059375 PMCID: PMC7071150 DOI: 10.3390/nu12020458] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2020] [Revised: 02/08/2020] [Accepted: 02/10/2020] [Indexed: 12/18/2022] Open
Abstract
This is the first study to assess the effect of N-acetylcysteine (NAC) on the mitochondrial respiratory system, as well as free radical production, glutathione metabolism, nitrosative stress, and apoptosis in the salivary gland mitochondria of rats with high-fat diet (HFD)-induced insulin resistance (IR). The study was conducted on male Wistar rats divided into four groups of 10 animals each: C (control, rats fed a standard diet containing 10.3% fat), C + NAC (rats fed a standard diet, receiving NAC intragastrically), HFD (rats fed a high-fat diet containing 59.8% fat), and HFD + NAC (rats fed HFD diet, receiving NAC intragastrically). We confirmed that 8 weeks of HFD induces systemic IR as well as disturbances in mitochondrial complexes of the parotid and submandibular glands of rats. NAC supplementation leads to a significant increase in the activity of complex I, II + III and cytochrome c oxidase (COX), and also reduces the ADP/ATP ratio compared to HFD rats. Furthermore, NAC reduces the hydrogen peroxide production/activity of pro-oxidant enzymes, increases the pool of mitochondrial glutathione, and prevents cytokine formation, apoptosis, and nitrosative damage to the mitochondria in both aforementioned salivary glands of HFD rats. To sum up, NAC supplementation enhances energy metabolism in the salivary glands of IR rats, and prevents inflammation, apoptosis, and nitrosative stress.
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Affiliation(s)
- Anna Zalewska
- Experimental Dentistry Laboratory, Medical University, 15-222 Bialystok, Poland
- Correspondence: (A.Z.); (M.M.)
| | - Izabela Szarmach
- Department of Orthodontics, Medical University, 15-222 Bialystok, Poland;
| | | | - Mateusz Maciejczyk
- Department of Hygiene, Epidemiology and Ergonomics, Medical University, 15-222 Bialystok, Poland;
- Correspondence: (A.Z.); (M.M.)
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Hegab II, Abd-Ellatif RN, Sadek MT. The gastroprotective effect of N-acetylcysteine and genistein in indomethacin-induced gastric injury in rats. Can J Physiol Pharmacol 2018; 96:1161-1170. [PMID: 30011378 DOI: 10.1139/cjpp-2017-0730] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
The protective effect of N-acetylcysteine (NAC) and genistein (GEN) on an experimental model of indomethacin (IND)-induced gastric injury was investigated. A total of 50 male rats were divided into 5 groups: (1) control, (2) IND, (3) NAC pretreated, (4) GEN pretreated, and (5) NAC+GEN pretreated. Rats in groups 3-5 were orally administered NAC (500 mg/kg), GEN (10 mg/kg), or both, respectively, once daily for 7 days before the induction of gastric injury by IND (50 mg/kg). The stomach was removed for biochemical analysis and histopathological examination. Pretreatment with NAC, GEN, or both significantly improved ulcer indices and increased nitric oxide level and superoxide dismutase activity. They also significantly decreased malondialdehyde, tumour necrosis factor α levels, and myeloperoxidase activity, and downregulated matrix metalloproteinase 9 (MMP-9) gene expression compared to the IND group. NAC alone ameliorated IND-induced apoptosis, whereas GEN only significantly increased prostaglandin E2 level. Further, coadministration of both resulted in a significantly better gastroprotective effect versus solo administration. Coadministration of NAC and GEN has an additive gastroprotective effect in IND-induced gastric injury, which may be through interaction of their potential cytoprotective, antioxidant, anti-inflammatory, and antiapoptotic mechanisms together with regulation of MMP-9 expression.
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Affiliation(s)
- Islam Ibrahim Hegab
- a Physiology Department, Faculty of Medicine, Tanta University, Tanta, Egypt
| | | | - Mona Tayssir Sadek
- c Histology Department, Faculty of Medicine, Tanta University, Tanta, Egypt
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Effect of N-Acetylcysteine on Antioxidant Defense, Oxidative Modification, and Salivary Gland Function in a Rat Model of Insulin Resistance. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2018; 2018:6581970. [PMID: 29636851 PMCID: PMC5831706 DOI: 10.1155/2018/6581970] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 08/15/2017] [Accepted: 12/03/2017] [Indexed: 12/18/2022]
Abstract
Oxidative stress plays a crucial role in the salivary gland dysfunction in insulin resistance (IR). It is not surprising that new substances are constantly being sought that will protect against the harmful effects of IR in the oral cavity environment. The purpose of this study was to evaluate the effect of N-acetylcysteine (NAC) on oxidative stress and secretory function of salivary glands in a rat model of insulin resistance. Rats were divided into 4 groups: C-normal diet, C + NAC-normal diet + NAC, HFD-high-fat diet, and HFD + NAC. We have demonstrated that NAC elevated enzymatic (superoxide dismutase, catalase, and peroxidase) and nonenzymatic antioxidants (reduced glutathione (GSH) and total antioxidant capacity (TAS)) in the parotid glands of HFD + NAC rats, while in the submandibular glands increased only GSH and TAS levels. NAC protects against oxidative damage only in the parotid glands and increased stimulated salivary secretion; however, it does not increase the protein secretion in the both salivary glands. Summarizing, NAC supplementation prevents the decrease of stimulated saliva secretion, seen in the HFD rats affected. NAC improves the antioxidative capacity of the both glands and protects against oxidative damage to the parotid glands of IR rats.
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Soliman NA, Zineldeen DH, Katary MA, Ali DA. N-acetylcysteine a possible protector against indomethacin-induced peptic ulcer: crosstalk between antioxidant, anti-inflammatory, and antiapoptotic mechanisms. Can J Physiol Pharmacol 2017; 95:396-403. [DOI: 10.1139/cjpp-2016-0442] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
Abstract
This study investigated the gastroprotective effects of N-acetylcysteine (NAC) against indomethacin-induced gastric ulcer in rats. Ulceration was induced by a single oral administration of indomethacin (30 mg/kg). 50 male albino rats were allocated into 5 equal groups: control group received normal saline orally, indomethacin group rats received normal saline orally for 5 days and indomethacin (50 mg/kg) on the last day, ranitidine group received ranitidine (reference drug) orally for 5 days (50 mg/kg) before receiving indomethacin (50 mg/kg) on the last day, and NAC groups received NAC orally at 300 and 500 mg/kg, respectively, for 5 days before receiving indomethacin (50 mg/kg) on the last day. Gastric tissue interleukin-1β (IL-1β), interferon-γ (IFN-γ), and caspase-3 levels were immunoassayed. Total thiol (T-SH), myeloperoxidase (MPO), and glucose-6-phosphate dehydrogenase (G6PD) were determined by spectrophotometry. Cytokine-induced neutrophil chemoattractant 2α (CINC-2α) gene expression was evaluated in addition to Bcl-2 immunohistochemistry. Pretreatment with NAC improved the inflammatory, apoptotic, and redox status in a dose-dependent manner particularly in NAC 500 mg/kg pretreated group. These results show a role for NAC in improving indomethacin-induced gastric ulceration via antioxidative, antiapoptotic, and anti-inflammatory interactive mechanisms.
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Affiliation(s)
- Nema Ali Soliman
- Department of Medical Biochemistry, Faculty of Medicine, Tanta University, Tanta, Egypt
| | | | - Mohamed Alaa Katary
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Damanhur University, Damanhur, Egypt
| | - Darin Abd Ali
- Department of Histopathology, Faculty of Medicine, Tanta University, Tanta, Egypt
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Su M, Li CY, Zhou L, Yan YY, Ao LY, Wang GJ, Fang WR, Li YM. Anti-ulcerogenic effect of KFP-H008 against ethanol-induced gastric ulcer via p38 MAPK/NF-κB pathway. RSC Adv 2017. [DOI: 10.1039/c7ra08879e] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
KFP-H008, a novel potassium-competitive acid blocker developed for the treatment of acid-related diseases, has been reported to inhibit gastric acid secretion effectively, while its effects on gastric ulcer have not been previously explored.
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Affiliation(s)
- Mei Su
- State Key Laboratory of Natural Medicines
- School of Pharmacy
- China Pharmaceutical University
- Nanjing 210009
- PR China
| | - Cheng-yuan Li
- State Key Laboratory of Natural Medicines
- School of Basic Medicine and Clinical Pharmacy
- China Pharmaceutical University
- Nanjing 210009
- PR China
| | - Lin Zhou
- State Key Laboratory of Natural Medicines
- School of Basic Medicine and Clinical Pharmacy
- China Pharmaceutical University
- Nanjing 210009
- PR China
| | - Yun-yi Yan
- State Key Laboratory of Natural Medicines
- School of Basic Medicine and Clinical Pharmacy
- China Pharmaceutical University
- Nanjing 210009
- PR China
| | - Lu-yao Ao
- State Key Laboratory of Natural Medicines
- School of Basic Medicine and Clinical Pharmacy
- China Pharmaceutical University
- Nanjing 210009
- PR China
| | - Guang-ji Wang
- State Key Laboratory of Natural Medicines
- School of Pharmacy
- China Pharmaceutical University
- Nanjing 210009
- PR China
| | - Wei-rong Fang
- State Key Laboratory of Natural Medicines
- School of Basic Medicine and Clinical Pharmacy
- China Pharmaceutical University
- Nanjing 210009
- PR China
| | - Yun-man Li
- State Key Laboratory of Natural Medicines
- School of Basic Medicine and Clinical Pharmacy
- China Pharmaceutical University
- Nanjing 210009
- PR China
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13
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Chen P, Shen Y, Shi H, Ma X, Lin B, Xiao T, Wu F, Zhu J, Li Z, Xiao J, Li X, Zhang H, Geng F. Gastroprotective effects of Kangfuxin-against ethanol-induced gastric ulcer via attenuating oxidative stress and ER stress in mice. Chem Biol Interact 2016; 260:S0009-2797(16)30509-9. [PMID: 27983966 DOI: 10.1016/j.cbi.2016.10.021] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2016] [Revised: 10/09/2016] [Accepted: 10/27/2016] [Indexed: 01/19/2023]
Abstract
Oxidative stress and ER stress play a role in the pathogenesis of gastric ulcer. Kangfuxin (KFX) has been used to treat gastric ulcer in patients. However, the underlying mechanisms of KFX action remain unclear. The current study was undertaken to evaluate the gastroprotective effects of KFX and to determine its potential mechanisms. Ethanol-induced gastric ulcer mouse model was employed. Ethanol pretreated mice were treated with low (0.02 g/kg) and high (0.05 g/kg) dose of KFX for 14 days. Cimetidine (0.8 g/kg) was used as positive control. Histological evaluation of the gastric mucosa revealed that mice treated with ethanol exhibited severe gastric mucosal damage. Ethanol treatment increased plasma and gastric MDA level, decreased plasma and gastric SOD activity, and reduced gastric HO-1 and GCL-c mRNA levels. ER stress markers (CHOP, GRP78, and caspase 12) were up-regulated upon ethanol administration. Moreover, increased cell apoptosis and pro-apoptotic protein Bax and caspase 3 were observed in ethanol treated mice, while the anti-apoptotic protein Bcl 2 was inhibited. Finally, KFX treatment reversed ethanol-induced phenotypes and ameliorated gastric ulcer. Our results demonstrated that the gastroprotective effects of KFX against ethanol-induced gastric ulcer could be attributed to its anti-oxidative stress, anti-ER stress and anti-apoptotic effects.
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Affiliation(s)
- Pianpian Chen
- School of Pharmaceutical Sciences, Key Laboratory of Biotechnology and Pharmaceutical Engineering, Wenzhou Medical University, Wenzhou, 325035, China
| | - Yongmei Shen
- Sichuan Key Laboratory of Medical American Cockroach, Chengdu, 610000, China
| | - Hongxue Shi
- School of Pharmaceutical Sciences, Key Laboratory of Biotechnology and Pharmaceutical Engineering, Wenzhou Medical University, Wenzhou, 325035, China
| | - Xiuying Ma
- Sichuan Key Laboratory of Medical American Cockroach, Chengdu, 610000, China
| | - Beibei Lin
- School of Pharmaceutical Sciences, Key Laboratory of Biotechnology and Pharmaceutical Engineering, Wenzhou Medical University, Wenzhou, 325035, China
| | - Tong Xiao
- School of Pharmaceutical Sciences, Key Laboratory of Biotechnology and Pharmaceutical Engineering, Wenzhou Medical University, Wenzhou, 325035, China
| | - Fenzan Wu
- Science and Education Division, Cixi People's Hospital, Wenzhou Medical University, Ningbo, 315300, China
| | - Jingjing Zhu
- School of Pharmaceutical Sciences, Key Laboratory of Biotechnology and Pharmaceutical Engineering, Wenzhou Medical University, Wenzhou, 325035, China
| | - Zhengmao Li
- School of Pharmaceutical Sciences, Key Laboratory of Biotechnology and Pharmaceutical Engineering, Wenzhou Medical University, Wenzhou, 325035, China
| | - Jian Xiao
- School of Pharmaceutical Sciences, Key Laboratory of Biotechnology and Pharmaceutical Engineering, Wenzhou Medical University, Wenzhou, 325035, China
| | - Xiaokun Li
- School of Pharmaceutical Sciences, Key Laboratory of Biotechnology and Pharmaceutical Engineering, Wenzhou Medical University, Wenzhou, 325035, China
| | - Hongyu Zhang
- School of Pharmaceutical Sciences, Key Laboratory of Biotechnology and Pharmaceutical Engineering, Wenzhou Medical University, Wenzhou, 325035, China.
| | - Funeng Geng
- Sichuan Key Laboratory of Medical American Cockroach, Chengdu, 610000, China.
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14
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Nouraei N, Zarger L, Weilnau JN, Han J, Mason DM, Leak RK. Investigation of the therapeutic potential of N-acetyl cysteine and the tools used to define nigrostriatal degeneration in vivo. Toxicol Appl Pharmacol 2016; 296:19-30. [PMID: 26879220 DOI: 10.1016/j.taap.2016.02.010] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2015] [Revised: 02/02/2016] [Accepted: 02/10/2016] [Indexed: 12/22/2022]
Abstract
The glutathione precursor N-acetyl-L-cysteine (NAC) is currently being tested on Parkinson's patients for its neuroprotective properties. Our studies have shown that NAC can elicit protection in glutathione-independent manners in vitro. Thus, the goal of the present study was to establish an animal model of NAC-mediated protection in which to dissect the underlying mechanism. Mice were infused intrastriatally with the oxidative neurotoxicant 6-hydroxydopamine (6-OHDA; 4 μg) and administered NAC intraperitoneally (100mg/kg). NAC-treated animals exhibited higher levels of the dopaminergic terminal marker tyrosine hydroxylase (TH) in the striatum 10d after 6-OHDA. As TH expression is subject to stress-induced modulation, we infused the tracer FluoroGold into the striatum to retrogradely label nigrostriatal projection neurons. As expected, nigral FluoroGold staining and cell counts of FluoroGold(+) profiles were both more sensitive measures of nigrostriatal degeneration than measurements relying on TH alone. However, NAC failed to protect dopaminergic neurons 3 weeks following 6-OHDA, an effect verified by four measures: striatal TH levels, nigral TH levels, nigral TH(+) cell counts, and nigral FluoroGold levels. Some degree of mild toxicity of FluoroGold and NAC was evident, suggesting that caution must be exercised when relying on FluoroGold as a neuron-counting tool and when designing experiments with long-term delivery of NAC--such as clinical trials on patients with chronic disorders. Finally, the strengths and limitations of the tools used to define nigrostriatal degeneration are discussed.
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Affiliation(s)
- Negin Nouraei
- Division of Pharmaceutical Sciences, Duquesne University, Pittsburgh, PA, United States
| | - Lauren Zarger
- Division of Pharmaceutical Sciences, Duquesne University, Pittsburgh, PA, United States
| | - Justin N Weilnau
- Division of Pharmaceutical Sciences, Duquesne University, Pittsburgh, PA, United States
| | - Jimin Han
- Division of Pharmaceutical Sciences, Duquesne University, Pittsburgh, PA, United States
| | - Daniel M Mason
- Division of Pharmaceutical Sciences, Duquesne University, Pittsburgh, PA, United States
| | - Rehana K Leak
- Division of Pharmaceutical Sciences, Duquesne University, Pittsburgh, PA, United States.
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