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Darwish MA, Abdel-Bakky MS, Messiha BAS, Abo-Saif AA, Abo-Youssef AM. Resveratrol mitigates pancreatic TF activation and autophagy-mediated beta cell death via inhibition of CXCL16/ox-LDL pathway: A novel protective mechanism against type 1 diabetes mellitus in mice. Eur J Pharmacol 2021; 901:174059. [PMID: 33794215 DOI: 10.1016/j.ejphar.2021.174059] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2020] [Revised: 03/08/2021] [Accepted: 03/17/2021] [Indexed: 12/13/2022]
Abstract
The role of CXC chemokine ligand 16 (CXCL16), oxidized LDL (ox-LDL), tissue factor (TF) and autophagy-induced beta cell death in type 1 diabetes mellitus (T1DM) pathogenesis is still unclear. We examined the therapeutic potential and mechanism of resveratrol (RES) against T1DM. Diabetes was induced in Balb/c mice by i. p. injection of 55 mg/kg streptozotocin (STZ) for five consecutive days. The control group received vehicles. RES or (RES + STZ) groups received RES (50 mg/kg, i. p.) daily for 12 days starting from the fourth day of buffer or STZ injections, respectively. Blood glucose, serum insulin, beta cell mass, serum lipid profiles, histological changes, oxidative stress biomarkers were determined. Moreover, CXCL16, TF, ox-LDL, P62 and LC3 tissue expression were also analyzed. Diabetic mice showed a marked deterioration in biochemical, physical and oxidative stress parameters. Interestingly, immunofluorescence analysis showed a remarkable elevation in CXCL16 (12 folds), ox-LDL (9 folds), TF (8.3 folds) in pancreatic B-cells. Moreover, western blotting revealed a profound increase in ox-LDL (2.6 folds), TF (3.2 folds), while a significant decline in P62 (0.34) and LC3 (0.25) when compared to control. RES mitigated biochemical, physical, oxidative imbalance and distorted pancreatic architecture in T1DM mice. Intriguingly, CXCL16, ox-LDL, TF and autophagic markers were also restored after RES treatment. Our data give the first direct evidence that beta cell-specific CXCL16/ox-LDL pathway activation is a potential trigger of TF activation and autophagic beta cell death in T1DM. Moreover, RES may have potential therapeutic applications for prevention of T1DM mainly via ameliorating this pathway.
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Affiliation(s)
- Mostafa A Darwish
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Nahda University, Beni-Suef, Egypt
| | - Mohamed S Abdel-Bakky
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Al-Azhar University, Cairo, Egypt; Department of Pharmacology and Toxicology, College of Pharmacy, Qassim University, Qassim, Saudi Arabia
| | - Basim A S Messiha
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Beni-Suef University, Beni-Suef, Egypt.
| | - Ali A Abo-Saif
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Nahda University, Beni-Suef, Egypt; Department of Pharmacology, Faculty of Medicine, Al-Azhar University, Cairo, Egypt
| | - Amira M Abo-Youssef
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Beni-Suef University, Beni-Suef, Egypt
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A Novel ALDH2 Activator AD-9308 Improves Diastolic and Systolic Myocardial Functions in Streptozotocin-Induced Diabetic Mice. Antioxidants (Basel) 2021; 10:antiox10030450. [PMID: 33805825 PMCID: PMC7998151 DOI: 10.3390/antiox10030450] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Revised: 03/10/2021] [Accepted: 03/11/2021] [Indexed: 12/21/2022] Open
Abstract
Diabetes mellitus has reached epidemic proportion worldwide. One of the diabetic complications is cardiomyopathy, characterized by early left ventricular (LV) diastolic dysfunction, followed by development of systolic dysfunction and ventricular dilation at a late stage. The pathogenesis is multifactorial, and there is no effective treatment yet. In recent years, 4-hydroxy-2-nonenal (4-HNE), a toxic aldehyde generated from lipid peroxidation, is implicated in the pathogenesis of cardiovascular diseases. Its high bioreactivity toward proteins results in cellular damage. Mitochondrial aldehyde dehydrogenase 2 (ALDH2) is the major enzyme that detoxifies 4-HNE. The development of small-molecule ALDH2 activator provides an opportunity for treating diabetic cardiomyopathy. This study found that AD-9308, a water-soluble andhighly selective ALDH2 activator, can improve LV diastolic and systolic functions, and wall remodeling in streptozotocin-induced diabetic mice. AD-9308 treatment dose-dependently lowered serum 4-HNE levels and 4-HNE protein adducts in cardiac tissue from diabetic mice, accompanied with ameliorated myocardial fibrosis, inflammation, and apoptosis. Improvements of mitochondrial functions, sarco/endoplasmic reticulumcalcium handling and autophagy regulation were also observed in diabetic mice with AD-9308 treatment. In conclusion, ADLH2 activation effectively ameliorated diabetic cardiomyopathy, which may be mediated through detoxification of 4-HNE. Our findings highlighted the therapeutic potential of ALDH2 activation for treating diabetic cardiomyopathy.
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Ham J, Lim W, Song G. Flufenoxuron suppresses the proliferation of testicular cells by targeting mitochondria in mice. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2021; 173:104773. [PMID: 33771252 DOI: 10.1016/j.pestbp.2021.104773] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2020] [Revised: 12/29/2020] [Accepted: 12/30/2020] [Indexed: 06/12/2023]
Abstract
Flufenoxuron is a benzoylurea pesticide that is used to eradicate insects and acarids in the farmland. Even though it specifically works on target animals, the possibilities of its bioaccumulation and harmful effects on non-target animals cannot be denied. As the usage and application of pesticides increases, exposure to them also increases through ingestion of food residues, inhalation, or dermal contact. Pesticides could also be considered as endocrine disruptor chemicals; however, the reproductive toxicity and cellular mechanisms of flufenoxuron have not been identified. Our results indicate that flufenoxuron inhibits cellular proliferation and hampers calcium homeostasis, especially by targeting mitochondria. We also confirmed the induction of endoplasmic reticulum (ER) stress and ER-mitochondrial contact signaling. Using pharmacological inhibitors, we also observed that the mitogen-activated protein kinase and Akt signaling pathways were upregulated by flufenoxuron. Further, by oral administration of flufenoxuron (100 mg/kg/bw) to C57BL/6 male mice, we observed transcriptional changes in the testis-related genes. Collectively, we demonstrated that flufenoxuron inhibits cell proliferation and alters gene expression in mouse testis cells and induces testicular dysfunction in mice. These results indicate that flufenoxuron may be harmful to male reproduction and fertility in the early stages of pregnancy.
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Affiliation(s)
- Jiyeon Ham
- Institute of Animal Molecular Biotechnology and Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul 02841, Republic of Korea
| | - Whasun Lim
- Department of Food and Nutrition, Kookmin University, Seoul 02707, Republic of Korea.
| | - Gwonhwa Song
- Institute of Animal Molecular Biotechnology and Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul 02841, Republic of Korea.
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Zhao LL, Makinde EA, Olatunji OJ. Protective effects of ethyl acetate extract from Shorea roxburghii against diabetes induced testicular damage in rats. ENVIRONMENTAL TOXICOLOGY 2021; 36:374-385. [PMID: 33058396 DOI: 10.1002/tox.23043] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Revised: 09/15/2020] [Accepted: 10/03/2020] [Indexed: 05/06/2023]
Abstract
Diabetic mellitus is a chronic metabolic disorder that is associated with several complications including testicular dysfunction. This research investigated the protective action of the ethyl acetate extract from Shorea roxburghii (SRE) on diabetes induced testicular damage in rats. Diabetic rats were orally administered with SRE at doses of 100 and 400 mg/kg for 4 weeks. SRE improved the body weight gain, testes weight, testes index and increased serum concentration of testosterone. Furthermore, SRE increased the testicular antioxidant enzymes including superoxide dismutase, catalase and glutathione peroxidase. In addition, SRE ameliorated testicular inflammatory mediators such as myeloperoxidase, tumor necrosis factor alpha, interleukin 6, p38 MAPK and nuclear factor kappa B activation and decreased testicular cell apoptosis in the treated diabetic rats. SRE also raised sperm parameters after treatment of diabetic rats. Conclusively, our results suggested that SRE ameliorated diabetes induced testicular damage by inhibiting oxidative stress and inflammation.
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Affiliation(s)
- Ling-Ling Zhao
- Department of Chemistry and Chemical Engineering, Yancheng Institute of Technology, Yancheng, China
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Food-Derived Pharmacological Modulators of the Nrf2/ARE Pathway: Their Role in the Treatment of Diseases. Molecules 2021; 26:molecules26041016. [PMID: 33671866 PMCID: PMC7918973 DOI: 10.3390/molecules26041016] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Revised: 02/08/2021] [Accepted: 02/12/2021] [Indexed: 12/28/2022] Open
Abstract
Oxidative stress, which refers to unbalanced accumulation of reactive oxygen species (ROS) levels in cells, has been linked to acute and chronic diseases. Nuclear factor erythroid 2-related factor 2/antioxidant response element (Nrf2/ARE) pathway plays a vital role in regulating cytoprotective genes and enzymes in response to oxidative stress. Therefore, pharmacological regulation of Nrf2/ARE pathway is an effective method to treat several diseases that are mainly characterized by oxidative stress and inflammation. Natural products that counteract oxidative stress by modulating Nrf2 have contributed significantly to disease treatment. In this review, we focus on bioactive compounds derived from food that are Nrf2/ARE pathway regulators and describe the molecular mechanisms for regulating Nrf2 to exert favorable effects in experimental models of diseases.
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Dou Y, Huang R, Li Q, Liu Y, Li Y, Chen H, Ai G, Xie J, Zeng H, Chen J, Luo C, Su Z. Oxyberberine, an absorbed metabolite of berberine, possess superior hypoglycemic effect via regulating the PI3K/Akt and Nrf2 signaling pathways. Biomed Pharmacother 2021; 137:111312. [PMID: 33524788 DOI: 10.1016/j.biopha.2021.111312] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Revised: 01/18/2021] [Accepted: 01/21/2021] [Indexed: 12/11/2022] Open
Abstract
Berberine (BBR) is a promising anti-diabetic isoquinoline alkaloid from Rhizoma coptidis, while its bioavailability was extremely low. Here, the existing form and pharmacokinetics of BBR were comparatively characterized in conventional and antibiotic-induced pseudo germ-free (PGF) rats. Furthermore, we comparatively investigated the antidiabetic effect and potential mechanism of BBR and its intestinal oxidative metabolite oxyberberine (OBB) in STZ-induced diabetic rats. Results showed that BBR and OBB existed mainly as protein-bound form in blood, while protein-bound OBB was significantly depleted in PGF rats. Treatment with OBB and BBR effectively decreased clinical symptoms of diabetic rats, reduced blood glucose level, ameliorated the pancreatic damage, and mitigated oxidative stress and inflammatory markers. However, the anti-diabetes effect of BBR was obviously compromised by antibiotics. In addition, OBB exerted superior anti-diabetes effect to BBR of the same dose, significantly up-regulated the mRNA expression of Nrf2 signaling pathway and substantially promoted the pancreatic levels of PI3K/Akt signaling pathway. In conclusion, BBR and its absorbed oxidative metabolite OBB were mainly presented and transported in the protein-bound form in vivo. The gut microbiota may play an important role in the anti-diabetes effect of BBR through transforming itself into the superior hypoglycemic metabolite OBB. OBB possessed favorable hypoglycemic and pancreatic β-cells protective effects, which may stand a huge potential to be further developed into a promising anti-diabetes candidate.
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Affiliation(s)
- Yaoxing Dou
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, PR China
| | - Ronglei Huang
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, PR China
| | - Qiaoping Li
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, PR China
| | - Yuhong Liu
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, PR China
| | - Yucui Li
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, PR China
| | - Hanbin Chen
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, SAR, PR China
| | - Gaoxiang Ai
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, PR China
| | - Jianhui Xie
- Guangdong Provincial Key Laboratory of Clinical Research on Traditional Chinese Medicine Syndrome, The Second Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou, PR China; State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, PR China
| | - Huifang Zeng
- The First Affiliated Hospital of Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, PR China
| | - Jiannan Chen
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, PR China
| | - Chaodan Luo
- Subtropical Agricultural Products Processing Engineering Technology Center, Guangxi Institute of Subtropical Agricultural Products Processing, Guangxi Subtropical Crops Research Institute, Guangxi Academy of Agricultural Sciences, Guangxi, PR China.
| | - Ziren Su
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, PR China.
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Dham D, Roy B, Gowda A, Pan G, Sridhar A, Zeng X, Thandavarayan RA, Palaniyandi SS. 4-Hydroxy-2-nonenal, a lipid peroxidation product, as a biomarker in diabetes and its complications: challenges and opportunities. Free Radic Res 2021; 55:547-561. [PMID: 33336611 DOI: 10.1080/10715762.2020.1866756] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Over 30 million Americans are diagnosed with diabetes and this number is only expected to increase. There are various causes that induce complications with diabetes, including oxidative stress. In oxidative stress, lipid peroxidation-derived reactive carbonyl species such as 4-hydroxy-2-nonenal (4-HNE) is shown to cause damage in organs that leads to diabetic complications. We provided evidence to show that 4-HNE or/and 4-HNE-protein adducts are elevated in various organ systems of diabetic patients and animal models. We then discussed the advantages and disadvantages of different methodologies used for the detection of 4-HNE in diabetic tissues. We also discussed how novel approaches such as electrochemistry and nanotechnology can be used for monitoring 4-HNE levels in biological systems in real-time. Thus, this review enlightens the involvement of 4-HNE in the pathogenesis of diabetes and its complications and efficient methods to identify it. Furthermore, the article presents that 4-HNE can be developed as a biomarker for end-organ damage in diabetes such as diabetic cardiac complications.
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Affiliation(s)
- Deiva Dham
- Division of Hypertension and Vascular Research, Department of Internal Medicine, Henry Ford Health System, Detroit, MI, USA
| | - Bipradas Roy
- Division of Hypertension and Vascular Research, Department of Internal Medicine, Henry Ford Health System, Detroit, MI, USA
| | - Amita Gowda
- Division of Hypertension and Vascular Research, Department of Internal Medicine, Henry Ford Health System, Detroit, MI, USA
| | - Guodong Pan
- Division of Hypertension and Vascular Research, Department of Internal Medicine, Henry Ford Health System, Detroit, MI, USA
| | - Arun Sridhar
- Department of Chemistry, Oakland University, Rochester, MI, USA
| | - Xiangqun Zeng
- Department of Chemistry, Oakland University, Rochester, MI, USA
| | - Rajarajan A Thandavarayan
- Department of Cardiovascular Sciences, Centre for Cardiovascular Regeneration, Houston Methodist Research Institute, Houston, TX, USA
| | - Suresh Selvaraj Palaniyandi
- Division of Hypertension and Vascular Research, Department of Internal Medicine, Henry Ford Health System, Detroit, MI, USA.,Department of Physiology, Wayne State University, Detroit, MI, USA
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Jia J, Zeng X, Xu G, Wang Z. The Potential Roles of Redox Enzymes in Alzheimer's Disease: Focus on Thioredoxin. ASN Neuro 2021; 13:1759091421994351. [PMID: 33557592 PMCID: PMC7876756 DOI: 10.1177/1759091421994351] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 01/19/2021] [Accepted: 01/21/2021] [Indexed: 12/18/2022] Open
Abstract
Alzheimer's disease (AD) is the most common neurodegenerative diseases. Increasing studies have demonstrated the critical importance for redox proteins mediating neuronal protection in models of AD. This review briefly describes some of the risk factors contributing to AD, specifically highlighting the important roles of oxidative stress in the pathology of AD. Then this article concisely introduces the dysregulation and functions of two main redox enzymes, peroxiredoxins and glutaredoxins, in AD models. This review emphasizes the neuroprotective role of the third redox enzyme thioredoxin (Trx), an important multifunctional protein regulating cellular redox status. This commentary not only summarizes the alterations of Trx expression in AD patients and models, but also reviews the potential effects and mechanisms of Trx, Trx-related molecules and Trx-inducing compounds against AD. In conclusion, Trx has a potential neuroprotection in AD and may be very promising for clinical therapy of AD in the future.
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Affiliation(s)
- Jinjing Jia
- Department of Physiology, Jiaxing University Medical
College, Jiaxing, China
- Forensic and Pathology Laboratory, Jiaxing University
Medical College, Jiaxing, China
| | - Xiansi Zeng
- Forensic and Pathology Laboratory, Jiaxing University
Medical College, Jiaxing, China
- Department of Biochemistry, Jiaxing University Medical
College, Jiaxing, China
| | - Guangtao Xu
- Forensic and Pathology Laboratory, Jiaxing University
Medical College, Jiaxing, China
| | - Zhanqi Wang
- College of Life Sciences, Huzhou University, Huzhou,
China
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Deng W, Li Y, Ren Z, He Q, Jia Y, Liu Y, Zhang W, Gan X, Liu D. Thioredoxin-interacting protein: a critical link between autophagy disorders and pancreatic β-cell dysfunction. Endocrine 2020; 70:526-537. [PMID: 32892310 DOI: 10.1007/s12020-020-02471-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/28/2019] [Accepted: 08/23/2020] [Indexed: 12/18/2022]
Abstract
Thioredoxin-interacting protein (TXNIP) is a known important regulatory protein of islet β-cell biology and function, but the detailed mechanism is not clear. Autophagy plays a pivotal role in maintaining cellular homoeostasis. This study aimed to elucidate the influence of TXNIP on the autophagy of β-cell. In this study, C57BL/6 mice and TXNIP-/- mice were fed with a standard diet (SD) or a high-fat and high-sugar diet (HFSD), and then we analysed biochemical and autophagy related indexes in the mice. We infected MIN6 cells with LV-TXNIP and siRNA TXNIP, then the cells were treated with free fatty acid (FFA), autophagic activator rapamycin (RAP), inhibitors of autophagy chloroquine (CQ) and bafilomycin A1(BAF), finally, we examined the changes of autophagy in MIN6 cells. The results showed that HFSD led to β-cell dysfunction and autophagy dysregulation, which was improved by TXNIP knockout in mice. In vitro experiments, TXNIP gene silencing enhanced LC3B-I conversion to LC3B-II, reduced the protein level of P62, decreased autophagosome accumulation induced by FFA treatment, increased the glucose-stimulated insulin secretion (GSIS) and autophagic flux inhibited by treatment with CQ. TXNIP overexpression induced upregulation of LC3B-I, LC3B-II and P62, accentuating the increase in autophagy and organelle destruction induced by FFA, and exacerbated the effect of BAF on the accumulation of autophagy proteins. Increasing TXNIP levels reduced GSIS, which was reversed by treatment with RAP. In summary, our study suggested that TXNIP is a critical link between autophagy disorders and pancreatic β-cell dysfunction.
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Affiliation(s)
- Wenzhen Deng
- Department of Endocrinology, The Second Affiliated Hospital of Chongqing Medical University, 400010, Chongqing, China
- Department of Endocrinology, Qianjiang Central Hospital of Chongqing, 409000, Chongqing, China
| | - Yang Li
- Department of Endocrinology, The Second Affiliated Hospital of Chongqing Medical University, 400010, Chongqing, China
| | - Ziyu Ren
- Department of Endocrinology, The Second Affiliated Hospital of Chongqing Medical University, 400010, Chongqing, China
| | - Qirui He
- Department of Endocrinology, The Second Affiliated Hospital of Chongqing Medical University, 400010, Chongqing, China
| | - Yanjun Jia
- Department of Endocrinology, The Second Affiliated Hospital of Chongqing Medical University, 400010, Chongqing, China
| | - Yongjian Liu
- Department of Endocrinology, The Second Affiliated Hospital of Chongqing Medical University, 400010, Chongqing, China
| | - Weiwei Zhang
- Department of Endocrinology, The Second Affiliated Hospital of Chongqing Medical University, 400010, Chongqing, China
| | - Xianfeng Gan
- Department of Hepatobiliary Surgery, Sichuan Academy of Medical Sciences and Sichuan Provincial People's Hospital, 610072, Chengdu, China.
| | - Dongfang Liu
- Department of Endocrinology, The Second Affiliated Hospital of Chongqing Medical University, 400010, Chongqing, China.
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Nna VU, Bakar ABA, Ahmad A, Mohamed M. Diabetes-induced testicular oxidative stress, inflammation, and caspase-dependent apoptosis: the protective role of metformin. Arch Physiol Biochem 2020; 126:377-388. [PMID: 30513216 DOI: 10.1080/13813455.2018.1543329] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Context: Metformin's effect on glycaemic control is well documented, but its effect on diabetes-induced testicular impairment has been scarcely reported.Objective: To investigate the effects of metformin on testicular oxidative stress, inflammation, and apoptosis, which largely contribute to fertility decline in diabetic state.Methods: Male Sprague-Dawley rats were divided into 3 groups (n = 6/group) namely: normal control (NC), diabetic control (DC), and metformin (300 mg/kg b.w./d)-treated diabetic groups. Metformin was administrated for 4 weeks.Results: Decreased mRNA expressions and activities of antioxidant enzymes were seen in the testes of DC group. mRNA and protein expressions of pro-inflammatory and pro-apoptotic markers increased, while interleukin-10 and proliferating cell nuclear antigen (PCNA) decreased in the testes of DC group. Treatment with metformin up-regulated antioxidant enzymes, down-regulated inflammation, and apoptosis and increased PCNA immunoexpression in the testes.Conclusions: Metformin protects the testes from diabetes-induced impairment and may improve male reproductive health in diabetic state.
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Affiliation(s)
- Victor Udo Nna
- Department of Physiology, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian, Kelantan, Malaysia
- Department of Physiology, Faculty of Basic Medical Sciences, College of Medical Sciences, University of Calabar, Calabar, Nigeria
| | - Ainul Bahiyah Abu Bakar
- Department of Physiology, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian, Kelantan, Malaysia
| | - Azlina Ahmad
- Basic Science and Oral Biology Unit, School of Dental Sciences, Universiti Sains Malaysia, Kubang Kerian, Kelantan, Malaysia
| | - Mahaneem Mohamed
- Department of Physiology, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian, Kelantan, Malaysia
- Unit of Integrative Medicine, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian, Kelantan, Malaysia
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Arkali G, Aksakal M, Kaya ŞÖ. Protective effects of carvacrol against diabetes-induced reproductive damage in male rats: Modulation of Nrf2/HO-1 signalling pathway and inhibition of Nf-kB-mediated testicular apoptosis and inflammation. Andrologia 2020; 53:e13899. [PMID: 33242925 DOI: 10.1111/and.13899] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Revised: 10/13/2020] [Accepted: 10/13/2020] [Indexed: 12/22/2022] Open
Abstract
Diabetes mellitus, which causes many complications, also adversely affects reproductive system in men. Studies reported that natural antioxidants are effective in reducing important complication risks caused by diabetes. Carvacrol is an antioxidant phenolic monoterpene compound with therapeutic effect in various diseases found in essential oils of aromatic plants such as pepper, wild bergamot and thyme. We aimed to investigate the effects of carvacrol on diabetes-induced reproductive damage in male rats by evaluating the Nrf2/HO-1 pathway and Nf-kB-mediated apoptosis/inflammation and spermatological parameters. For this purpose, 74 Wistar albino male rats were used. The diabetes model was performed using single-dose intraperitoneal injection of streptozotocin 55 mg/kg. Rats were fed with carvacrol 75 mg/kg/daily/gavage for 4 and 8 weeks. Rats were divided into four groups: control group, diabetic group, carvacrol group which fed with carvacrol and the diabetic group which fed with carvacrol. It was determined that carvacrol significantly decreased malondialdehyde levels, Bax,COX-2,Nf-kB protein expression levels, Bax/Bcl-2 ratio and significantly increased glutathione peroxidase, catalase activities, Bcl-2, Nrf2,HO-1 protein expression levels and it was determined that had a positive effect on spermatological parameters. In conclusion, the negative effects of diabetes in the male reproductive system can be prevented and/or reduced by giving carvacrol.
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Affiliation(s)
- Gözde Arkali
- Department of Physiology, Fırat University Faculty of Veterinary Medicine, Elazığ, Turkey
| | - Mesut Aksakal
- Department of Physiology, Fırat University Faculty of Veterinary Medicine, Elazığ, Turkey
| | - Şeyma Özer Kaya
- Department of Reproduction and Artificial Insemınation, Fırat University Faculty of Veterinary Medicine, Elazığ, Turkey
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Xiong Y, Wang Y, Zhang J, Zhao N, Zhang H, Zhang A, Zhao D, Yu Z, Yin Y, Song L, Xiong Y, Luan X. hPMSCs protects against D-galactose-induced oxidative damage of CD4 + T cells through activating Akt-mediated Nrf2 antioxidant signaling. Stem Cell Res Ther 2020; 11:468. [PMID: 33148324 PMCID: PMC7641865 DOI: 10.1186/s13287-020-01993-0] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Accepted: 10/22/2020] [Indexed: 12/27/2022] Open
Abstract
Background Mesenchymal stem cells (MSCs) were considered a regenerative therapeutic approach in both acute and chronic diseases. However, whether MSCs regulate the antioxidant metabolism of CD4+ T cells and weaken immunosenescence remains unclear. Here, we reported the protective effects of hPMSCs in aging-related CD4+ T cell senescence and identified the underlying mechanisms using a d-gal-induced mouse aging model. Methods In vivo study, 40 male C57BL/6 mice (8 weeks) were randomly divided into four groups: control group, d-gal group, hPMSC group, and PBS group. In in vitro experiment, human naive CD4+ T (CD4CD45RA) cells were prepared using a naive CD4+ T cell isolation kit II and pretreated with the Akt inhibitor LY294002 and Nrf2 inhibitor ML385. Then, isolated naive CD4+ T cell were co-cultured with hPMSCs for 72 h in the absence or presence of anti-CD3/CD28 Dynabeads and IL-2 as a mitogenic stimulus. Intracellular ROS changes were detected by flow cytometry. The activities of the antioxidant enzymes superoxide dismutase, glutathione peroxidase, and catalase were measured by colorimetric analysis. The senescent T cells were detected SA-β-gal stain. The expression of aging-related proteins was detected by Western blotting, RT-PCR, and confocal microscopy. Results We found that hPMSC treatment markedly decreased the ROS level, SA-β-gal-positive cells number, senescence-associated secretory phenotype (IL-6 and OPN) expression, and aging-related protein (P16 and P21) expression in senescent CD4+ T cells. Furthermore, hPMSC treatment effectively upregulated Nrf2 nuclear translocation and the expression of downstream target genes (HO-1, CAT, GCLC, and NQO1) in senescent CD4+ T cells. Moreover, in vitro studies revealed that hPMSCs attenuated CD4+ T cell senescence by upregulating the Akt/GSK-3β/Fyn pathway to activate Nrf2 functions. Conversely, the antioxidant effects of hPMSCs were blocked by the Akt inhibitor LY294002 and Nrf2 inhibitor ML385 in senescent CD4+ T cells. Conclusions Our results indicate that hPMSCs attenuate d-gal-induced CD4+ T cell senescence by activating Nrf2-mediated antioxidant defenses and that upregulation of Nrf2 by hPMSCs is regulated via the Akt/GSK-3β/Fyn pathway.
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Affiliation(s)
- Yanlian Xiong
- Department of Anatomy, School of Basic Medicine, Binzhou Medical University, Yantai, People's Republic of China
| | - Yueming Wang
- Department of Anatomy, School of Basic Medicine, Binzhou Medical University, Yantai, People's Republic of China
| | - Jiashen Zhang
- Department of Immunology, School of Basic Medicine, Binzhou Medical University, Yantai, People's Republic of China
| | - Nannan Zhao
- Department of Immunology, School of Basic Medicine, Binzhou Medical University, Yantai, People's Republic of China
| | - Hengchao Zhang
- Department of Immunology, School of Basic Medicine, Binzhou Medical University, Yantai, People's Republic of China
| | - Aiping Zhang
- Department of Immunology, School of Basic Medicine, Binzhou Medical University, Yantai, People's Republic of China
| | - Dongmei Zhao
- Department of Anatomy, School of Basic Medicine, Binzhou Medical University, Yantai, People's Republic of China
| | - Zhenhai Yu
- Department of Anatomy, School of Basic Medicine, Binzhou Medical University, Yantai, People's Republic of China
| | - Yancun Yin
- Department of Anatomy, School of Basic Medicine, Binzhou Medical University, Yantai, People's Republic of China
| | - Lele Song
- Department of Immunology, School of Basic Medicine, Binzhou Medical University, Yantai, People's Republic of China
| | - Yanlei Xiong
- Department of Pathology, Xuanwu Hospital, Capital Medical University, Beijing, People's Republic of China.
| | - Xiying Luan
- Department of Immunology, School of Basic Medicine, Binzhou Medical University, Yantai, People's Republic of China.
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Terada K, Murata A, Toki E, Goto S, Yamakawa H, Setoguchi S, Watase D, Koga M, Takata J, Matsunaga K, Karube Y. Atypical Antipsychotic Drug Ziprasidone Protects against Rotenone-Induced Neurotoxicity: An In Vitro Study. Molecules 2020; 25:molecules25184206. [PMID: 32937854 PMCID: PMC7570562 DOI: 10.3390/molecules25184206] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Revised: 09/11/2020] [Accepted: 09/12/2020] [Indexed: 01/14/2023] Open
Abstract
Schizophrenia is a severe, chronic mental illness characterized by delusions, hallucinations, negative symptoms, and cognitive dysfunction. Recently, several studies have demonstrated that the pathogenesis of schizophrenia involves mitochondrial dysfunction and oxidative stress. However, the effect of antipsychotic drugs for these events has been poorly investigated. In the present study, we evaluated the neuroprotective effect of an atypical antipsychotic drug, ziprasidone (ZPD), on rotenone (ROT)-induced neurotoxicity involving oxidative stress in PC12 cells. Our data showed that ZPD treatment promoted the translocation of NF-E2-related factor-2 (Nrf2) from cytoplasm to nucleus and activated the expression of its target genes NAD(P)H quinone oxidoreductase (NQO-1), catalase (CAT), and heme oxygenase (HO-1). Additionally, ZPD prevented ROT-induced cell death and intracellular reactive oxygen species production. Interestingly, the use of serotonin 5-HT1A receptor antagonist 1-(2-methoxyphenyl)-4 (4-(2-phtalimido) butyl) piperazine (NAN-190) completely blocked the protective effect of ZPD against ROT-induced cell death. Our results demonstrate the neuroprotective effect of ZPD against ROT-induced neurotoxicity and suggest that ZPD may be a potential candidate for the prevention of mitochondrial dysfunction and oxidative stress in schizophrenia.
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Yuan H, Xu Y, Luo Y, Wang NX, Xiao JH. Role of Nrf2 in cell senescence regulation. Mol Cell Biochem 2020; 476:247-259. [PMID: 32918185 DOI: 10.1007/s11010-020-03901-9] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Accepted: 09/02/2020] [Indexed: 02/06/2023]
Abstract
Nuclear factor-E2-related factor 2 (Nrf2) is a key transcription factor known to be involved in maintaining cell redox balance and signal transduction and plays central role in reducing intracellular oxidative stress damage, delaying cell senescence and preventing age-related diseases. However, it has been shown that the level of Nrf2 decreases with age and that the silencing of the Nrf2 gene is associated with the induction of premature senescence. Therefore, a plethora of researchers have focused on elucidating the regulatory mechanism of Nrf2 in the prevention of cell senescence. This complex regulatory mechanism of Nrf2 in the cell senescence process involves coordinated regulation of multiple signaling molecules. After summarizing the function of Nrf2 and its relationship with cell senescence pathway, this review focuses on the recent advances and progress made in elucidating the regulatory mechanism of Nrf2 in the cell senescence process. Additionally, the information collected here may provide insights for further research on Nrf2, in particular, on its regulatory mechanism in the cell senescence process.
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Affiliation(s)
- Huan Yuan
- Zunyi Municiptal Key Laboratory of Medicinal Biotechnology, Affiliated Hospital of Zunyi Medical University, Zunyi, 563003, People's Republic of China
| | - Yan Xu
- Zunyi Municiptal Key Laboratory of Medicinal Biotechnology, Affiliated Hospital of Zunyi Medical University, Zunyi, 563003, People's Republic of China.,Guizhou Provincial Research Center for Translational Medicine, Affiliated Hospital of Zunyi Medical University, Zunyi, 563003, People's Republic of China
| | - Yi Luo
- Zunyi Municiptal Key Laboratory of Medicinal Biotechnology, Affiliated Hospital of Zunyi Medical University, Zunyi, 563003, People's Republic of China.,Guizhou Provincial Research Center for Translational Medicine, Affiliated Hospital of Zunyi Medical University, Zunyi, 563003, People's Republic of China
| | - Nuo-Xin Wang
- Zunyi Municiptal Key Laboratory of Medicinal Biotechnology, Affiliated Hospital of Zunyi Medical University, Zunyi, 563003, People's Republic of China.,Guizhou Provincial Research Center for Translational Medicine, Affiliated Hospital of Zunyi Medical University, Zunyi, 563003, People's Republic of China
| | - Jian-Hui Xiao
- Zunyi Municiptal Key Laboratory of Medicinal Biotechnology, Affiliated Hospital of Zunyi Medical University, Zunyi, 563003, People's Republic of China. .,Guizhou Provincial Research Center for Translational Medicine, Affiliated Hospital of Zunyi Medical University, Zunyi, 563003, People's Republic of China. .,Zunyi Municiptal Key Laboratory of Medicinal Biotechnology, Center for Translational Medicine, Affiliated Hospital of Zunyi Medical University, 149 Dalian Road, Zunyi, 563003, People's Republic of China.
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65
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Barkabi-Zanjani S, Ghorbanzadeh V, Aslani M, Ghalibafsabbaghi A, Chodari L. Diabetes mellitus and the impairment of male reproductive function: Possible signaling pathways. Diabetes Metab Syndr 2020; 14:1307-1314. [PMID: 32755827 DOI: 10.1016/j.dsx.2020.07.031] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/27/2020] [Revised: 07/04/2020] [Accepted: 07/17/2020] [Indexed: 12/16/2022]
Abstract
BACKGROUND AND AIMS Today, it has been shown that diabetes mellitus (DM) can affect male fertility. Glucose metabolism is a vital process in spermatogenesis that is impacted by diabetes condition. But the mechanisms by which DM causes male infertility are not wholly clarified. The aim of this review is to provide brief information about the influence of hyperglycemia on male fertility and specific emphasis on the molecular signaling pathway that is involved. METHODS Broad literature search in the electronic database "Pubmed", "Google Scholar", the website of "World Health Organization" (WHO) and Control Disease and Prevention (CDC) took place. There was no time restriction. A key criterion for the selection of articles was English and language. Finally, one hundred thirty seven articles were included in the review. RESULTS Diabetes mellitus affects many signaling pathways that involved in the spermatogenesis. It seems that increased ROS and oxidative stress in the diabetes is the beginning of all fertility problems and affects all of involved signaling pathways in the spermatogenesis. CONCLUSIONS It seems that there was strong interconnected between oxidative stress and all of involved signaling pathways in the reproductive problems in diabetes. So, approaches that diminish oxidative stress in the testis can be effective in improving diabetes related infertility complications.
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Affiliation(s)
- Sona Barkabi-Zanjani
- Department of Physiology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Vajihe Ghorbanzadeh
- Razi Herbal Medicines Research Center, Lorestan University of Medical Sciences, Khorramabad, Iran
| | - Mohamadreza Aslani
- Lung Inflammatory Diseases Research Center, Faculty of Medicine, Ardabil University of Medical Sciences, Ardabil, Iran; Neurogenetic Inflammation Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | | | - Leila Chodari
- Neurophysiology Research Center, Cellular and Molecular Medicine Institute,Urmia University of Medical Sciences, Urmia, Iran; Department of Physiology, Faculty of Medicine, Urmia University of Medical Sciences, Urmia, Iran.
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66
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Environmental Impact on Male (In)Fertility via Epigenetic Route. J Clin Med 2020; 9:jcm9082520. [PMID: 32764255 PMCID: PMC7463911 DOI: 10.3390/jcm9082520] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Revised: 07/21/2020] [Accepted: 07/31/2020] [Indexed: 12/14/2022] Open
Abstract
In the last 40 years, male reproductive health-which is very sensitive to both environmental exposure and metabolic status-has deteriorated and the poor sperm quality observed has been suggested to affect offspring development and its health in adult life. In this scenario, evidence now suggests that epigenetics shapes endocrine functions, linking genetics and environment. During fertilization, spermatozoa share with the oocyte their epigenome, along with their haploid genome, in order to orchestrate embryo development. The epigenetic signature of spermatozoa is the result of a dynamic modulation of the epigenetic marks occurring, firstly, in the testis-during germ cell progression-then, along the epididymis, where spermatozoa still receive molecules, conveyed by epididymosomes. Paternal lifestyle, including nutrition and exposure to hazardous substances, alters the phenotype of the next generations, through the remodeling of a sperm epigenetic blueprint that dynamically reacts to a wide range of environmental and lifestyle stressors. With that in mind, this review will summarize and discuss insights into germline epigenetic plasticity caused by environmental stimuli and diet and how spermatozoa may be carriers of induced epimutations across generations through a mechanism known as paternal transgenerational epigenetic inheritance.
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Sulforaphane suppresses obesity-related glomerulopathy-induced damage by enhancing autophagy via Nrf2. Life Sci 2020; 258:118153. [PMID: 32738361 DOI: 10.1016/j.lfs.2020.118153] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Revised: 07/18/2020] [Accepted: 07/23/2020] [Indexed: 01/14/2023]
Abstract
AIMS Obesity-related glomerulopathy (ORG) is characterized by glomerulomegaly with or without focal and segmental glomerulosclerosis lesions. Isothiocyanate sulforaphane (SFN) can protect kidneys from ORG-related damages. In this study, we investigated the effects of SFN as a preventive therapy or intervention for ORG to reveal its mechanism of action. MAIN METHODS We established a mouse obesity model with preventive SFN or N-acetylcysteine treatment for 2 months. Thereafter, we used nuclear factor erythroid 2-related factor 2-deficient (Nrf2-/-) and wild type mice in our ORG model with SFN treatment. Finally, we generated a corresponding mouse podocyte model in vitro. The body weight, wet weight of perirenal-and peritesticular fat, and urinary albumin/creatinine ratio were assessed. We used periodic acid-Schiff staining and electron microscopy to assess the function of the kidneys and podocytes. In addition, we evaluated the expression of Nrf2 and podocyte-specific proteins by western blotting. KEY FINDINGS Treatment with SFN reduced body weight, organ-associated fat weight, and urinary albumin/creatinine ratio in both the preventive treatment and disease intervention regimens. SFN treated mice exhibited higher expression levels of podocyte-specific proteins and better podocyte function. However, treatment with SFN did not affect these parameters in obese Nrf2-/- mice. Light chain 3 of microtubule-associated protein 1-II and metallothionein had higher expression in the wild type than in the Nrf2-/- mice. SIGNIFICANCE Treatment with SFN limited ORG-induced damage by enhancing podocyte autophagy via Nrf2.
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68
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Funes SC, Rios M, Fernández-Fierro A, Covián C, Bueno SM, Riedel CA, Mackern-Oberti JP, Kalergis AM. Naturally Derived Heme-Oxygenase 1 Inducers and Their Therapeutic Application to Immune-Mediated Diseases. Front Immunol 2020; 11:1467. [PMID: 32849503 PMCID: PMC7396584 DOI: 10.3389/fimmu.2020.01467] [Citation(s) in RCA: 88] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Accepted: 06/05/2020] [Indexed: 02/06/2023] Open
Abstract
Heme oxygenase (HO) is the primary antioxidant enzyme involved in heme group degradation. A variety of stimuli triggers the expression of the inducible HO-1 isoform, which is modulated by its substrate and cellular stressors. A major anti-inflammatory role has been assigned to the HO-1 activity. Therefore, in recent years HO-1 induction has been employed as an approach to treating several disorders displaying some immune alterations components, such as exacerbated inflammation or self-reactivity. Many natural compounds have shown to be effective inductors of HO-1 without cytotoxic effects; among them, most are chemicals present in plants used as food, flavoring, and medicine. Here we discuss some naturally derived compounds involved in HO-1 induction, their impact in the immune response modulation, and the beneficial effect in diverse autoimmune disorders. We conclude that the use of some compounds from natural sources able to induce HO-1 is an attractive lifestyle toward promoting human health. This review opens a new outlook on the investigation of naturally derived HO-1 inducers, mainly concerning autoimmunity.
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Affiliation(s)
- Samanta C Funes
- Departamento de Genética Molecular y Microbiología, Millenium Institute on Immunology and Immunotherapy, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Mariana Rios
- Departamento de Genética Molecular y Microbiología, Millenium Institute on Immunology and Immunotherapy, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Ayleen Fernández-Fierro
- Departamento de Genética Molecular y Microbiología, Millenium Institute on Immunology and Immunotherapy, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Camila Covián
- Departamento de Genética Molecular y Microbiología, Millenium Institute on Immunology and Immunotherapy, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Susan M Bueno
- Departamento de Genética Molecular y Microbiología, Millenium Institute on Immunology and Immunotherapy, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Claudia A Riedel
- Departamento de Ciencias Biológicas, Millenium Institute on Immunolgy and Immunotherapy, Facultad Ciencias de la Vida, Universidad Andrés Bello, Santiago, Chile
| | - Juan Pablo Mackern-Oberti
- Instituto de Medicina y Biología Experimental de Cuyo, IMBECU CCT Mendoza- CONICET, Mendoza, Argentina.,Facultad de Ciencias Médicas, Instituto de Fisiología, Universidad Nacional de Cuyo, Mendoza, Argentina
| | - Alexis M Kalergis
- Departamento de Genética Molecular y Microbiología, Millenium Institute on Immunology and Immunotherapy, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile.,Departamento de Endocrinología, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
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Wei YZ, Zhu GF, Zheng CQ, Li JJ, Sheng S, Li DD, Wang GQ, Zhang F. Ellagic acid protects dopamine neurons from rotenone-induced neurotoxicity via activation of Nrf2 signalling. J Cell Mol Med 2020; 24:9446-9456. [PMID: 32657027 PMCID: PMC7417702 DOI: 10.1111/jcmm.15616] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Revised: 06/16/2020] [Accepted: 06/23/2020] [Indexed: 12/29/2022] Open
Abstract
Parkinson's disease (PD) is the second most prevalent central nervous system (CNS) degenerative disease. Oxidative stress is one of key contributors to PD. Nuclear factor erythroid-2-related factor 2 (Nrf2) is considered to be a master regulator of many genes involved in anti-oxidant stress to attenuate cell death. Therefore, activation of Nrf2 signalling provides an effective avenue to treat PD. Ellagic acid (EA), a natural polyphenolic contained in fruits and nuts, possesses amounts of pharmacological activities, such as anti-oxidant stress and anti-inflammation. Recent studies have confirmed EA could be used as a neuroprotective agent in neurodegenerative diseases. Here, mice subcutaneous injection of rotenone (ROT)-induced DA neuronal damage was performed to investigate EA-mediated neuroprotection. In addition, adult Nrf2 knockout mice and different cell cultures including MN9D-enciched, MN9D-BV-2 and MN9D-C6 cell co-cultures were applied to explore the underlying mechanisms. Results demonstrated EA conferred neuroprotection against ROT-induced DA neurotoxicity. Activation of Nrf2 signalling was involved in EA-mediated DA neuroprotection, as evidenced by the following observations. First, EA activated Nrf2 signalling in ROT-induced DA neuronal damage. Second, EA generated neuroprotection with the presence of astroglia and silence of Nrf2 in astroglia abolished EA-mediated neuroprotection. Third, EA failed to produce DA neuroprotection in Nrf2 knockout mice. In conclusion, this study identified EA protected against DA neuronal loss via an Nrf2-dependent manner.
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Affiliation(s)
- Yi-Zheng Wei
- Joint International Research Laboratory of Ethnomedicine of Ministry of Education and Key Laboratory of Basic Pharmacology of Ministry of Education, Zunyi Medical University, Zunyi, China
| | - Guo-Fu Zhu
- Joint International Research Laboratory of Ethnomedicine of Ministry of Education and Key Laboratory of Basic Pharmacology of Ministry of Education, Zunyi Medical University, Zunyi, China
| | - Chang-Qing Zheng
- Joint International Research Laboratory of Ethnomedicine of Ministry of Education and Key Laboratory of Basic Pharmacology of Ministry of Education, Zunyi Medical University, Zunyi, China
| | - Jing-Jie Li
- Joint International Research Laboratory of Ethnomedicine of Ministry of Education and Key Laboratory of Basic Pharmacology of Ministry of Education, Zunyi Medical University, Zunyi, China
| | - Shuo Sheng
- Joint International Research Laboratory of Ethnomedicine of Ministry of Education and Key Laboratory of Basic Pharmacology of Ministry of Education, Zunyi Medical University, Zunyi, China
| | - Dai-di Li
- Joint International Research Laboratory of Ethnomedicine of Ministry of Education and Key Laboratory of Basic Pharmacology of Ministry of Education, Zunyi Medical University, Zunyi, China
| | - Guo-Qing Wang
- Joint International Research Laboratory of Ethnomedicine of Ministry of Education and Key Laboratory of Basic Pharmacology of Ministry of Education, Zunyi Medical University, Zunyi, China
| | - Feng Zhang
- Joint International Research Laboratory of Ethnomedicine of Ministry of Education and Key Laboratory of Basic Pharmacology of Ministry of Education, Zunyi Medical University, Zunyi, China
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Association of genetic variations in phosphatase and tensin homolog (PTEN) gene with polycystic ovary syndrome in South Indian women: a case control study. Arch Gynecol Obstet 2020; 302:1033-1040. [PMID: 32583210 DOI: 10.1007/s00404-020-05658-4] [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: 02/17/2020] [Accepted: 06/18/2020] [Indexed: 10/24/2022]
Abstract
PURPOSE The purpose of the study was to investigate the association between gene phosphate and tensin homolog (PTEN) single nucleotide polymorphisms (SNPs) and risk of developing polycystic ovary syndrome (PCOS) in South Indian women. PTEN is one of the most important tumor suppressor genes that regulate cell proliferation, migration, and death. It is also involved in the maintenance of genome stability. PCOS is one of the most common endocrine disorders among women of reproductive age. It is a heterogeneous syndrome characterized by abnormal reproductive cycles, irregular ovulation, hormonal imbalance, hyperandrogenism, acne and hirsutism. RESEARCH QUESTION What is the association status of PTEN SNPs with PCOS? METHODS A total of 240 subjects were recruited in this case-control study comprising 110 patients with PCOS and 130 individuals without PCOS. All the subjects were of South Indian origin. The genotyping of PTEN SNPs (rs1903858 A/G, rs185262832G/A and rs10490920T/C) was carried out on DNA from subjects by polymerase chain reaction (PCR) and sequencing analysis. Haplotype frequencies for multiple loci and the standardized disequilibrium coefficient (D') for pairwise linkage disequilibrium (LD) were surveyed by Haploview Software. RESULTS Our results showed significant increase in the frequencies of rs1903858 A/G (P = 0.0016), rs185262832 G/A (P = 0.0122) and rs10490920 T/C (P = 0.0234) genotypes and alleles in cases compared to controls. CONCLUSION The PTEN (rs1903858A/G, rs185262832G/A and rs10490920T/C) gene polymorphisms may constitute an inheritable risk factor for PCOS in South Indian women.
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Ren GF, Xiao LL, Ma XJ, Yan YS, Jiao PF. Metformin Decreases Insulin Resistance in Type 1 Diabetes Through Regulating p53 and RAP2A in vitro and in vivo. DRUG DESIGN DEVELOPMENT AND THERAPY 2020; 14:2381-2392. [PMID: 32606605 PMCID: PMC7306576 DOI: 10.2147/dddt.s249557] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Accepted: 05/07/2020] [Indexed: 01/06/2023]
Abstract
Purpose Patients with type 1 diabetes (T1D) are associated with a high risk of multiple complications, so the development of T1D treatment is urgently needed. This study was set out to explore the molecular mechanism of metformin in the treatment of T1D insulin resistance. Patients and Methods Subcutaneous adipose tissues were collected from 68 T1D patients and 51 healthy controls. Insulin resistance model rats and cells were constructed and treated with metformin respectively. Western blot was used to detect p53 and RAP2A protein levels, and qPCR was utilized to measure p53 and RAP2A mRNA levels. SiRNA and RAP2A siRNA vectors were constructed to observe their effects on insulin resistance model cells. Results In T1D, p53 was up-regulated, while RAP2A was down-regulated. Metformin could effectively improve insulin resistance and inflammatory response while down-regulating p53 and up-regulating RAP2A. P53 induced insulin resistance and inflammatory response by inhibiting RAP2A and promoted apoptosis. Conclusion Metformin improves T1D insulin resistance and inflammatory response through p53/RAP2A pathway, and the regulation of p53/RAP2A pathway is conducive to improving the efficacy of metformin in the treatment of insulin resistance.
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Affiliation(s)
- Gao-Fei Ren
- Department of Endocrinology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan Province, People's Republic of China
| | - Li-Li Xiao
- Department of Cardiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan Province, People's Republic of China
| | - Xiao-Jun Ma
- Department of Endocrinology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan Province, People's Republic of China
| | - Yu-Shan Yan
- Department of Endocrinology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan Province, People's Republic of China
| | - Peng-Fei Jiao
- Department of Respiratory, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan Province, People's Republic of China
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Yu H, Zhen J, Yang Y, Du J, Leng J, Tong Q. Rg1 protects H9C2 cells from high glucose-/palmitate-induced injury via activation of AKT/GSK-3β/Nrf2 pathway. J Cell Mol Med 2020; 24:8194-8205. [PMID: 32548942 PMCID: PMC7348154 DOI: 10.1111/jcmm.15486] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Revised: 05/06/2020] [Accepted: 05/24/2020] [Indexed: 12/15/2022] Open
Abstract
Our previous studies have assessed ginsenoside Rg1 (Rg1)‐mediated protection in a type 1 diabetes rat model. To uncover the mechanism through which Rg1 protects against cardiac injury induced by diabetes, we mimicked diabetic conditions by culturing H9C2 cells in high glucose/palmitate. Rg1 had no toxic effect, and it alleviated the high glucose/palmitate damage in a dose‐dependent manner, as indicated by 3‐(4,5‐dimethylthiazol‐2‐yl)‐2,5‐diphenyl tetrazolium bromide assay and lactate dehydrogenase release to the culture medium. Rg1 prevented high glucose/palmitate‐induced cell apoptosis, assessed using cleaved caspase‐3 and terminal deoxynucleotidyl transferase dUTP nick end labelling staining. Rg1 also reduced high glucose‐/palmitate‐induced reactive oxygen species formation and increased intracellular antioxidant enzyme activity. We found that Rg1 activates protein kinase B (AKT)/glycogen synthase kinase‐3 (GSK‐3β) pathway and antioxidant nuclear factor erythroid 2‐related factor 2 (Nrf2) pathway, indicated by increased phosphorylation of AKT and GSK‐3β, and nuclear translocation of Nrf2. We used phosphatidylinositol‐3‐kinase inhibitor Ly294002 to block the activation of the AKT/GSK‐3β pathway and found that it partially reversed the protection by Rg1 and decreased Nrf2 pathway activation. The results suggest that Rg1 exerts a protective effect against high glucose and palmitate damage that is partially AKT/GSK‐3β/Nrf2‐mediated. Further studies are required to validate these findings using primary cardiomyocytes and animal models of diabetes.
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Affiliation(s)
- Haitao Yu
- The First Hospital of Jilin University, Changchun, China
| | - Juan Zhen
- The First Hospital of Jilin University, Changchun, China
| | - Yang Yang
- The First Hospital of Jilin University, Changchun, China
| | - Jian Du
- The First Hospital of Jilin University, Changchun, China
| | - Jiyan Leng
- The First Hospital of Jilin University, Changchun, China
| | - Qian Tong
- The First Hospital of Jilin University, Changchun, China
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Jia L, Hao SL, Yang WX. Nanoparticles induce autophagy via mTOR pathway inhibition and reactive oxygen species generation. Nanomedicine (Lond) 2020; 15:1419-1435. [PMID: 32529946 DOI: 10.2217/nnm-2019-0387] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Due to their unique physicochemical properties, nanoparticles (NPs) have been increasingly developed for use in various fields. However, there has been both growing negative concerns with toxicity and positive realization of opportunities in nanomedicine, coming from the growing understanding of the associations between NPs and the human body, particularly relating to their cellular autophagic effects. This review summarizes NP-induced autophagy via the modulation of the mTOR signaling pathway and other associated signals including AMPK and ERK and also demonstrates how reactive oxygen species generation greatly underlies the regulation processes. The perspectives in this review aim to contribute to NP design, particularly in consideration of nanotoxicity and the potential for the precise application of NPs in nanomedicine.
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Affiliation(s)
- Lu Jia
- The Sperm Laboratory, College of Life Sciences, Zhejiang University, Hangzhou, 310058, PR China
| | - Shuang-Li Hao
- The Sperm Laboratory, College of Life Sciences, Zhejiang University, Hangzhou, 310058, PR China
| | - Wan-Xi Yang
- The Sperm Laboratory, College of Life Sciences, Zhejiang University, Hangzhou, 310058, PR China
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Zhao Y, Han Y, Wang Z, Chen T, Qian H, He J, Li J, Han B, Wang T. Rosmarinic acid protects against 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine-induced dopaminergic neurotoxicity in zebrafish embryos. Toxicol In Vitro 2020; 65:104823. [PMID: 32147576 DOI: 10.1016/j.tiv.2020.104823] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2019] [Revised: 03/01/2020] [Accepted: 03/04/2020] [Indexed: 10/24/2022]
Abstract
Rosmarinic acid (RA) is an extract that can be obtained from Lamiaceae herbs and the Boraginaceae family. This study aimed to evaluate the effect of RA on 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP)-induced dopaminergic neurotoxicity in zebrafish embryos. Embryos were challenged with MPTP and then were treated with RA or brusatol (a Nrf2 inhibitor). Locomotor activity of zebrafish was recorded using a video camera. The swimming distance was analyzed with SMART 3.0 software. Tyrosine hydroxylase (TH) immunohistochemistry, reactive oxygen species (ROS), glutathione (GSH), and malondialdehyde (MDA) contents were evaluated. The expressions of proteins in the DJ-1/Akt/Nrf2 signaling pathway were measured. The results showed that RA not only prevented MPTP-induced dopaminergic neuron loss, but also attenuated the deficit in locomotor behavior. RA attenuated the increases of ROS and MDA induced by MPTP. Treatment with RA augmented expression of glutamate cysteine ligase catalytic subunit, glutamate cysteine ligase modifier subunit, and GSH. Furthermore, RA increased the expression of DJ-1, p-Akt, Nuclear-Nrf2, HO-1 and inhibited the expression of PTEN. Brusatol partially abolished the neuroprotective effect of RA in MPTP-induced Parkinson's disease (PD) model of zebrafish embryos. The results of this study indicate that RA exerts neuroprotective effects on MPTP-induced neurotoxicity in dopaminergic neurons of a zebrafish PD model. The mechanism underlying the effects of RA is associated with promotion of antioxidant gene expression via regulation of the DJ-1/Akt/Nrf2 signaling pathway.
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Affiliation(s)
- Yue Zhao
- Center for Mitochondria and Healthy Aging, College of Life Science, Yantai University, Yantai 264005, PR China
| | - Yingjie Han
- Center for Mitochondria and Healthy Aging, College of Life Science, Yantai University, Yantai 264005, PR China
| | - Zhenhua Wang
- Center for Mitochondria and Healthy Aging, College of Life Science, Yantai University, Yantai 264005, PR China
| | - Tianrong Chen
- Center for Mitochondria and Healthy Aging, College of Life Science, Yantai University, Yantai 264005, PR China
| | - Haowen Qian
- Center for Mitochondria and Healthy Aging, College of Life Science, Yantai University, Yantai 264005, PR China
| | - Jie He
- Center for Mitochondria and Healthy Aging, College of Life Science, Yantai University, Yantai 264005, PR China
| | - Ji Li
- Center for Mitochondria and Healthy Aging, College of Life Science, Yantai University, Yantai 264005, PR China
| | - Bing Han
- Center for Mitochondria and Healthy Aging, College of Life Science, Yantai University, Yantai 264005, PR China.
| | - Tian Wang
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai, Shandong 264005, PR China.
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The therapeutic effect of resveratrol: Focusing on the Nrf2 signaling pathway. Biomed Pharmacother 2020; 127:110234. [PMID: 32559855 DOI: 10.1016/j.biopha.2020.110234] [Citation(s) in RCA: 107] [Impact Index Per Article: 26.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2020] [Revised: 04/20/2020] [Accepted: 05/03/2020] [Indexed: 12/18/2022] Open
Abstract
Resveratrol is a natural polyphenol derived from grapes, berries, red wine, peanuts amongst other fruits and nuts. Beneficial effects such as anti-inflammatory, antioxidant, hepatoprotective, neuroprotective, cardioprotective, renoprotective, anti-obesity, anti-diabetic, and anti-cancer of resveratrol have been demonstrated by preclinical and clinical research. A possibility is that these therapeutical effects are associated with modulation of the Nrf2 signaling pathway in the following way: resveratrol may potentiate Nrf2 signaling through blockage of Keap1, by means of changing the Nrf2 mediators, its expression and its nuclear translocation. This article reviews the evidence of the Nrf2 modulating hypothesis as a possible molecular mechanism underlying the medicinal properties of resveratrol.
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Autophagy Induced by ROS Aggravates Testis Oxidative Damage in Diabetes via Breaking the Feedforward Loop Linking p62 and Nrf2. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2020; 2020:7156579. [PMID: 32509151 PMCID: PMC7254092 DOI: 10.1155/2020/7156579] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/15/2020] [Revised: 04/26/2020] [Accepted: 04/29/2020] [Indexed: 12/30/2022]
Abstract
Testicular dysfunction due to hyperglycemia is the main cause of infertility in diabetic men. Over the years, in order to solve this growing problem, a lot of research has been done and a variety of treatments have been created, but so far, there is no safe, effective, and practical method to prevent male infertility caused by diabetes. In this review, we emphasize the male infertility mechanism caused by diabetes from the effects of oxidative stress and autophagy on the function of testes via the PI3K/Akt/mTOR signaling pathway, and we highlight that oxidative stress-induced autophagy breaks the feedforward loop linking Nrf2 and p62 and promotes oxidative damage in diabetic testes.
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Shi W, Guo Z, Ji Y, Feng J. The protective effect of recombinant globular adiponectin on testis by modulating autophagy, endoplasmic reticulum stress and oxidative stress in streptozotocin-induced diabetic mice. Eur J Pharmacol 2020; 879:173132. [PMID: 32353359 DOI: 10.1016/j.ejphar.2020.173132] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2019] [Revised: 04/17/2020] [Accepted: 04/20/2020] [Indexed: 02/07/2023]
Abstract
This study was to investigate whether recombinant globular adiponectin produced its protective effect on the testis of diabetic mice by modulating autophagy, endoplasmic reticulum stress and oxidative stress. Male mice were randomly divided into control, diabetic, diabetic treated with low and high dose of adiponectin. Mice were killed at the termination after 4 weeks and 8 weeks of adiponectin treatment. Serum levels of glucose, lipids, testosterone, insulin, LH and FSH were measured. The protein expression of glucose-regulated protein 78 (GRP78), C/EBP homologous protein (CHOP), Caspase12, Beclin1, microtubule-associated protein light chain 3 (LC3) and p62 was determined by western blotting. The mRNA expression of adiponectin receptor 1 (AdipoR1), p22phox, p47phox, nuclear factor erythroid2-related factor 2 (Nrf2), NAD(P)H-quinone oxidoreductase 1(NQO1), heme oxygenase-1 (HO-1) and superoxide dismutase (SOD) were determined by real-time fluorescence quantitative PCR. The testicular weight, the sperm number and motility, and the serum levels of testosterone and insulin were significantly decreased in diabetic mice (P < 0.05). The expression of Beclin1, LC3, Nrf2, NQO1, HO-1, SOD and AdipoR1 were significantly decreased (P < 0.05), while the expression of GRP78, CHOP, Caspase12, p62, p22phox and p47phox were notably increased in the testes of diabetic mice (P < 0.05). Adiponectin treatment significantly reversed the above-mentioned changes in the testes of diabetic mice, some of which were dose- and time-dependent (P < 0.05). These data suggested that recombinant globular adiponectin may produce the protective effect on the testes of diabetic mice by inducing autophagy and inhibiting ER stress and oxidative stress.
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Affiliation(s)
- Wenjiao Shi
- Department of Endocrinology, Second Hospital, Shanxi Medical University, Taiyuan, 030001, China; Department of Anesthesiology, Xinhua Hospital, Shanghai Jiaotong University, Shanghai, 200092, China
| | - Zhixin Guo
- Department of Endocrinology, Second Hospital, Shanxi Medical University, Taiyuan, 030001, China.
| | - Yun Ji
- Department of Anesthesiology, Xinhua Hospital, Shanghai Jiaotong University, Shanghai, 200092, China
| | - Jingyi Feng
- Department of Endocrinology, Second Hospital, Shanxi Medical University, Taiyuan, 030001, China
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Chatterjee A, Kosmacek EA, Shrishrimal S, McDonald JT, Oberley-Deegan RE. MnTE-2-PyP, a manganese porphyrin, reduces cytotoxicity caused by irradiation in a diabetic environment through the induction of endogenous antioxidant defenses. Redox Biol 2020; 34:101542. [PMID: 32361681 PMCID: PMC7200317 DOI: 10.1016/j.redox.2020.101542] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Revised: 04/03/2020] [Accepted: 04/13/2020] [Indexed: 01/01/2023] Open
Abstract
Radiation is a common anticancer therapy for many cancer patients, including prostate cancer. Diabetic prostate cancer patients suffer from increased lymph node metastasis, tumor recurrence and decreased survival as compared to non-diabetic prostate cancer patients. These patients are also at increased risk for enhanced radiation-induced normal tissue damage such as proctitis. Diabetics are oxidatively stressed and radiation causes additional oxidative damage. We and others have reported that, MnTE-2-PyP, a manganese porphyrin, protects normal prostate tissue from radiation damage. We have also reported that, in an in vivo mouse model of prostate cancer, MnTE-2-PyP decreases tumor volume and increases survival of the mice. In addition, MnTE-2-PyP has also been shown to reduce blood glucose and inhibits pro-fibrotic signaling in a diabetic model. Therefore, to investigate the role of MnTE-2-PyP in normal tissue protection in an irradiated diabetic environment, we have treated human prostate fibroblast cells with MnTE-2-PyP in an irradiated hyperglycemic environment. This study revealed that hyperglycemia causes increased cell death after radiation as compared to normo-glycemia. MnTE-2-PyP protects against hyperglycemia-induced cell death after radiation. MnTE-2-PyP decreases expression of NOX4 and α-SMA, one of the major oxidative enzymes and pro-fibrotic molecules respectively. MnTE-2-PyP obstructs NF-κB activity by decreasing DNA binding of the p50-p50 homodimer in the irradiated hyperglycemic environment. MnTE-2-PyP increases NRF2 mediated cytoprotection by increasing NRF2 protein expression and DNA binding. Therefore, we are proposing that, MnTE-2-PyP protects fibroblasts from irradiation and hyperglycemia damage by enhancing the NRF2- mediated pathway in diabetic prostate cancer patients, undergoing radiotherapy.
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Affiliation(s)
- Arpita Chatterjee
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, USA
| | - Elizabeth A Kosmacek
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, USA
| | - Shashank Shrishrimal
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, USA
| | - J Tyson McDonald
- Department of Physics & Cancer Research Center, Hampton University, Hampton, VA, 23668, USA
| | - Rebecca E Oberley-Deegan
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, USA.
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Yan Y, Yang H, Xie Y, Ding Y, Kong D, Yu H. Research Progress on Alzheimer's Disease and Resveratrol. Neurochem Res 2020; 45:989-1006. [PMID: 32162143 DOI: 10.1007/s11064-020-03007-0] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Revised: 02/27/2020] [Accepted: 03/03/2020] [Indexed: 12/13/2022]
Abstract
Alzheimer's disease (AD), a common irreversible neurodegenerative disease characterized by amyloid-β plaques, neurofibrillary tangles, and changes in tau phosphorylation, is accompanied by memory loss and symptoms of cognitive dysfunction. Increases in disease incidence due to the ageing of the population have placed a great burden on society. To date, the mechanism of AD and the identities of adequate drugs for AD prevention and treatment have eluded the medical community. It has been confirmed that phytochemicals have certain neuroprotective effects against AD. For example, some progress has been made in research on the use of resveratrol, a natural polyphenolic phytochemical, for the prevention and treatment of AD in recent years. Elucidation of the pathogenesis of AD will create a solid foundation for drug treatment. In addition, research on resveratrol, including its mechanism of action, the roles of signalling pathways and its therapeutic targets, will provide new ideas for AD treatment, which is of great significance. In this review, we discuss the possible relationships between AD and the following factors: synapses, α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (AMPA)-type glutamate receptors (AMPARs), silent information regulator 1 (SIRT1), and estrogens. We also discuss the findings of previous studies regarding these relationships in the context of AD treatment and further summarize research progress related to resveratrol treatment.
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Affiliation(s)
- Yan Yan
- The Department of Epidemiology and Health Statistics, Public Health School of Guangdong Medical University, Dongguan, 523808, Guangdong, China
| | - Huihuang Yang
- The Department of Epidemiology and Health Statistics, Public Health School of Guangdong Medical University, Dongguan, 523808, Guangdong, China
| | - Yuxun Xie
- The Department of Epidemiology and Health Statistics, Public Health School of Guangdong Medical University, Dongguan, 523808, Guangdong, China
| | - Yuanlin Ding
- The Department of Epidemiology and Health Statistics, Public Health School of Guangdong Medical University, Dongguan, 523808, Guangdong, China
| | - Danli Kong
- The Department of Epidemiology and Health Statistics, Public Health School of Guangdong Medical University, Dongguan, 523808, Guangdong, China.
| | - Haibing Yu
- The Department of Epidemiology and Health Statistics, Public Health School of Guangdong Medical University, Dongguan, 523808, Guangdong, China.
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Karpova T, de Oliveira AA, Naas H, Priviero F, Nunes KP. Blockade of Toll-like receptor 4 (TLR4) reduces oxidative stress and restores phospho-ERK1/2 levels in Leydig cells exposed to high glucose. Life Sci 2020; 245:117365. [DOI: 10.1016/j.lfs.2020.117365] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Revised: 01/11/2020] [Accepted: 01/26/2020] [Indexed: 12/21/2022]
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Rafe T, Shawon PA, Salem L, Chowdhury NI, Kabir F, Bin Zahur SM, Akhter R, Noor HB, Mohib MM, Sagor MAT. Preventive Role of Resveratrol Against Inflammatory Cytokines and Related Diseases. Curr Pharm Des 2020; 25:1345-1371. [PMID: 30968773 DOI: 10.2174/1381612825666190410153307] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2019] [Accepted: 03/27/2019] [Indexed: 12/13/2022]
Abstract
BACKGROUND Immunity is the ultimate barrier between foreign stimuli and a host cell. Unwanted immune responses can threaten the host cells and may eventually damage a vital organ. Overproduction of inflammatory cytokines may also lead to autoimmune diseases. Inflammatory cells and pro-inflammatory cytokines can eventually progress to renal, cardiac, brain, hepatic, pancreatic and ocular inflammation that can result in severe damage in the long run. Evidence also suggests that inflammation may lead to atherosclerosis, Alzheimer's, hypertension, stroke, cysts and cancers. METHODS This study was designed to correlate the possible molecular mechanisms for inflammatory diseases and prevent biochemical changes owing to inflammatory cytokines by using Resveratrol. Therefore, we searched and accumulated very recent literature on inflammatory disorders and Resveratrol. We scoured PubMed, Scopus, Science Direct, PLoS One and Google Scholar to gather papers and related information. RESULTS Reports show that inflammatory diseases are very complex, as multiple cascade systems are involved; therefore, they are quite difficult to cure. However, our literature search also correlates some possible molecular interactions by which inflammation can be prevented. We noticed that Resveratrol is a potent lead component and has multiple activities against harmful inflammatory cytokines and related microRNA. Our study also suggests that the anti-inflammatory properties of Resveratrol have been highly studied on animal models, cell lines and human subjects and proven to be very effective in reducing inflammatory cell production and pro-inflammatory cytokine accumulation. Our tables and figures also demonstrate recent findings and possible preventive activities to minimize inflammatory diseases. CONCLUSION This study would outline the role of harmful inflammatory cytokines as well as how they accelerate pathophysiology and progress to an inflammatory disorder. Therefore, this study might show a potential therapeutic value of using Resveratrol by health professionals in preventing inflammatory disorders.
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Affiliation(s)
- Tanzir Rafe
- Department of Pharmaceutical Sciences, School of Life Sciences, North South University, Dhaka-1229, Bangladesh
| | - Parvez Ahmed Shawon
- Department of Pharmaceutical Sciences, School of Life Sciences, North South University, Dhaka-1229, Bangladesh
| | - Liyad Salem
- Department of Pharmaceutical Sciences, School of Life Sciences, North South University, Dhaka-1229, Bangladesh
| | - Nafij Imtiyaj Chowdhury
- Department of Pharmaceutical Sciences, School of Life Sciences, North South University, Dhaka-1229, Bangladesh
| | - Farjana Kabir
- Department of Pharmaceutical Sciences, School of Life Sciences, North South University, Dhaka-1229, Bangladesh
| | | | - Rowshon Akhter
- Department of Pharmacy, East West University, Aftabnagar, Dhaka-1212, Bangladesh
| | - Humaira Binte Noor
- Department of Pharmaceutical Sciences, School of Life Sciences, North South University, Dhaka-1229, Bangladesh
| | - Md Mohabbulla Mohib
- Department of Pharmaceutical Sciences, School of Life Sciences, North South University, Dhaka-1229, Bangladesh.,Research Institute for Medicines (iMed. ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Lisbon, Portugal
| | - Md Abu Taher Sagor
- Department of Pharmaceutical Sciences, School of Life Sciences, North South University, Dhaka-1229, Bangladesh
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Wang C, Zheng L, Su G, Zeng XA, Sun B, Zhao M. Evaluation and Exploration of Potentially Bioactive Peptides in Casein Hydrolysates against Liver Oxidative Damage in STZ/HFD-Induced Diabetic Rats. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:2393-2405. [PMID: 31995979 DOI: 10.1021/acs.jafc.9b07687] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Hyperglycemia-induced oxidative stress can cause liver damage in diabetes, and protein hydrolysates with antidiabetic and antioxidant properties are emerging as a potential therapy. In this study, protective effects of casein hydrolysates against live oxidative damage in streptozotocin/high-fat-induced diabetic rats were studied and potentially bioactive peptides were explored by an integrated approach of differential peptide and in silico analysis. Results showed that different casein hydrolysates significantly alleviated liver oxidative damage (p < 0.05) via different mechanisms. Particularly, casein hydrolyzed by a papain-flavourzyme combination (P-FCH) treatment significantly improved liver antioxidant enzyme activities by enhancing nuclear factor erythroid 2-related factor 2 (Nrf2) transcription (p < 0.05). Furthermore, 18 peptides were screened as potential bioactive peptides by analyzing differential peptides among different hydrolysates combined with in silico prediction. Among them, the dipeptide WM might directly inhibit the Kelch-like ECH-associated protein 1 (Keap1)-Nrf2 interaction as potential Nrf2 activators. These results suggested that P-FCH might be an alternative way to treat liver damage in diabetes.
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Affiliation(s)
- Chenyang Wang
- School of Food Science and Engineering , South China University of Technology , Guangzhou 510640 , China
- Guangdong Food Green Processing and Nutrition Regulation Technologies Research Center , Guangzhou 510650 , China
| | - Lin Zheng
- School of Food Science and Engineering , South China University of Technology , Guangzhou 510640 , China
- Guangdong Food Green Processing and Nutrition Regulation Technologies Research Center , Guangzhou 510650 , China
| | - Guowan Su
- School of Food Science and Engineering , South China University of Technology , Guangzhou 510640 , China
- Guangdong Food Green Processing and Nutrition Regulation Technologies Research Center , Guangzhou 510650 , China
| | - Xin-An Zeng
- School of Food Science and Engineering , South China University of Technology , Guangzhou 510640 , China
| | - Baoguo Sun
- Beijing Advanced Innovation Center for Food Nutrition and Human Health , Beijing Technology & Business University , Beijing 100048 , China
| | - Mouming Zhao
- School of Food Science and Engineering , South China University of Technology , Guangzhou 510640 , China
- Guangdong Food Green Processing and Nutrition Regulation Technologies Research Center , Guangzhou 510650 , China
- Beijing Advanced Innovation Center for Food Nutrition and Human Health , Beijing Technology & Business University , Beijing 100048 , China
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CircRNA_0001449 disturbs phosphatidylinositol homeostasis and AKT activity by enhancing Osbpl5 translation in transient cerebral ischemia. Redox Biol 2020; 34:101459. [PMID: 32086008 PMCID: PMC7327991 DOI: 10.1016/j.redox.2020.101459] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2019] [Revised: 02/02/2020] [Accepted: 02/07/2020] [Indexed: 12/26/2022] Open
Abstract
Phosphatidylinositol-3,4,5-trisphosphate [PI(3,4,5)P3] is a phosphorylated derivative of phosphatidylinositol 4-phosphate [PI(4)P] and phosphatidylinositol 4,5-bisphosphate [PI(4,5)P2], which recruit and activate AKT in the plasma membrane (PM) to promote cellular survival. ORP5 anchors at the endoplasmic reticulum (ER)-PM contact sites and acts as a PI(4)P and PI(4,5)P2/phosphatidylserine (PS) exchanger. Here, a lipidomics analysis of the sensorimotor cortex revealed that transient middle cerebral artery occlusion (tMCAO) disturbs the homeostasis of phosphatidylinositols (PIs) and PS between the PM and ER. Conditional knockout mice showed that ORP5 contributes to this abnormal distribution. Abolishing the ORP5 gene significantly inhibited apoptosis and autophagy. RNA sequencing and RNA pull down analyses confirmed a competing endogenous RNA pathway in which circ_0001449 sponges miR-124-3p and miR-32-5p to promote Osbpl5 translation. Our data showed that circRNA_0001449 regulates membrane homeostasis via ORP5 and is involved in the AKT survival pathway. In sensorimotor cortex, lipids homeostasis of the PM and ER is disrupted after transient cerebral ischemia. ORP5 upregulation reduces the PI(3,4,5)P3 and its derivatives in the PM, thus weakens the AKT activity. Circ_0001449 competes with Osbpl5 mRNA to bind to miR-124-3p and miR-32-5p, which enhances the ORP5 protein level.
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Günther I, Rimbach G, Mack CI, Weinert CH, Danylec N, Lüersen K, Birringer M, Bracher F, Soukup ST, Kulling SE, Pallauf K. The Putative Caloric Restriction Mimetic Resveratrol has Moderate Impact on Insulin Sensitivity, Body Composition, and the Metabolome in Mice. Mol Nutr Food Res 2020; 64:e1901116. [PMID: 31962371 DOI: 10.1002/mnfr.201901116] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Revised: 12/12/2019] [Indexed: 01/23/2023]
Abstract
SCOPE Data on resveratrol-(trans-3,5,4'-trihydroxystilbene)-induced caloric-restriction-(CR)-mimicking effects in mice receiving a high-fat diet (HFD) are contradictory. It is hypothesized that this can possibly stem from different bioactivities of resveratrol (RSV) microbial metabolites. METHODS AND RESULTS C57BL/6Rj mice are fed an ad-libitum HFD supplemented with RSV or its metabolites, dihydroresveratrol (DHR) and lunularin (LUN) (≈28 mg (dihydro)stilbene kg-1 mouse per day). A 40% CR group was included in the study. While CR mice show robust changes in bodyweight and composition, hormone levels and mRNA expression, slight changes are found (more muscle, less adipose tissue) in body composition, leptin, and insulin levels in RSV-supplemented mice compared to ad libitum controls. LUN hardly and DHR does not change the hormone levels measured. Metabolome analysis of serum shows changes in CR mice but only slight, if any, changes in RSV-, DHR-, or LUN-supplemented mice compared to the controls. Evaluating the capability of RSV and its metabolites to inhibit carbohydrate-hydrolyzing enzymes in vitro, it is found that RSV reduced α-glucosidase activity to a stronger extent than DHR and LUN. CONCLUSION Decelerated carbohydrate breakdown by RSV may have contributed to the moderate impact of dietary RSV on mouse insulin sensitivity (lowered fasting and post-glucose-bolus insulin levels).
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Affiliation(s)
- Ilka Günther
- Institute of Human Nutrition and Food Science, University of Kiel, Hermann-Rodewald-Straße 6, 24118, Kiel, Germany
| | - Gerald Rimbach
- Institute of Human Nutrition and Food Science, University of Kiel, Hermann-Rodewald-Straße 6, 24118, Kiel, Germany
| | - Carina I Mack
- Max Rubner-Institut, Federal Research Institute of Nutrition and Food, Department of Safety and Quality of Fruit and Vegetables, Haid-und-Neu-Straße 9, 76131, Karlsruhe, Germany
| | - Christoph H Weinert
- Max Rubner-Institut, Federal Research Institute of Nutrition and Food, Department of Safety and Quality of Fruit and Vegetables, Haid-und-Neu-Straße 9, 76131, Karlsruhe, Germany
| | - Nicolas Danylec
- Max Rubner-Institut, Federal Research Institute of Nutrition and Food, Department of Safety and Quality of Fruit and Vegetables, Haid-und-Neu-Straße 9, 76131, Karlsruhe, Germany
| | - Kai Lüersen
- Institute of Human Nutrition and Food Science, University of Kiel, Hermann-Rodewald-Straße 6, 24118, Kiel, Germany
| | - Marc Birringer
- Department of Nutritional, Food and Consumer Sciences, Fulda University of Applied Sciences, Leipziger Straße 123, 36037, Fulda, Germany
| | - Franz Bracher
- Department of Pharmacy, Center for Drug Research, Ludwig-Maximilians University, Butenandtstraße 5-13, 81377, Munich, Germany
| | - Sebastian T Soukup
- Max Rubner-Institut, Federal Research Institute of Nutrition and Food, Department of Safety and Quality of Fruit and Vegetables, Haid-und-Neu-Straße 9, 76131, Karlsruhe, Germany
| | - Sabine E Kulling
- Max Rubner-Institut, Federal Research Institute of Nutrition and Food, Department of Safety and Quality of Fruit and Vegetables, Haid-und-Neu-Straße 9, 76131, Karlsruhe, Germany
| | - Kathrin Pallauf
- Institute of Human Nutrition and Food Science, University of Kiel, Hermann-Rodewald-Straße 6, 24118, Kiel, Germany
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6-Gingerol ameliorates sepsis-induced liver injury through the Nrf2 pathway. Int Immunopharmacol 2020; 80:106196. [PMID: 31978803 DOI: 10.1016/j.intimp.2020.106196] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Revised: 01/05/2020] [Accepted: 01/05/2020] [Indexed: 12/17/2022]
Abstract
Sepsis-induced liver injury is very common in intensive care units. Here, we investigated the effects of 6-gingerol on sepsis-induced liver injury and the role of the Nrf2 pathway in this process. 6-Gingerol is the principal ingredient of ginger that exerts anti-inflammatory and antioxidant effects. Using cecal ligation and puncture (CLP) to induce polymicrobial sepsis and related liver injury, we found that mice pre-treated with 6-Gingerol showed less incidences of severe liver inflammation and death than untreated CLP groups. 6-Gingerol administration also inhibited the expression of pyroptosis-related proteins, including NOD-like receptor protein 3 (NLRP3), IL-1β, and caspase-1. Consistent with these findings, 6-gingerol reduced the effects of pyroptosis induced by lipopolysaccharide (LPS) and adenosine 5'-triphosphate (ATP) in RAW 264.7 cells, as evidenced by IL-1β and caspase-1 protein levels in the supernatant and propidium iodide (PI) staining. 6-Gingerol was shown to activate the Nrf2 pathway in vivo and in vitro. Notably, Nrf2 siRNA transfection nullified the inhibitory effects of 6-gingerol on pyroptosis in vitro. In summary, these findings suggested that 6-gingerol alleviated sepsis-induced liver injury by inhibiting pyroptosis through the Nrf2 pathway.
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Lv ZM, Ling MY, Chen C. Comparative proteomics reveals protective effect of resveratrol on a high-fat diet-induced damage to mice testis. Syst Biol Reprod Med 2020; 66:37-49. [PMID: 31955635 DOI: 10.1080/19396368.2019.1701138] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
In recent years, resveratrol has been shown to protect against metabolic damage, including obesity-associated subfertility/infertility. In the present study, proteomic alterations in testicular tissues were investigated by tandem mass tag (TMT) in mice fed with a high-fat diet (HFD) without or with resveratrol supplementation (HFD+RSV). Serum testosterone levels, spermatozoa parameters and testicular histological morphology were assessed. Resveratrol treatment was shown to significantly reduce serum cholesterol, prevent the HFD-induced reductions in serum testosterone and spermatozoa parameters, and decrease the ultrastructural degeneration of testicular tissues. The comparative proteomics analysis revealed 58 differentially expressed proteins between the HFD and control groups and 38 differentially expressed proteins between the HFD and HFD+RSV groups. Gene ontology (GO) term enrichment and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis revealed that the most highly enriched differential proteins were correlated to spermatozoa function and cholesterol metabolism. The real-time RT-PCR and western blotting results confirmed the differential expression of the corresponding proteins related to spermatozoa function that were identified by proteomics. The present study provides new insight into the mechanisms of the beneficial effects of resveratrol, and may present it as a potential therapeutic strategy for obesity-associated male subfertility/infertility.Abbreviations:TMT: Tandem mass tag; HFD: High-fat diet; RSV: Resveratrol; GO: Gene ontology; Protein-proteinKEGG: Kyoto Encyclopedia of Genes and Genomes; RT-PCR: Reverse transcription-polymerase chain reaction; SDS-PAGE: Sodium dodecyl sulfate-polyacrylamide gel electrophoresis; PVDF: Polyvinylidene fluoride; ECL: Enhanced chemiluminescence; RIPA: Radio-immunoprecipitation assay; CTRL: Control; PPI: interaction; RIA: Radioimmunoassay; T: Testosterone; TG: Triglycerides; TC: Total cholesterol; LDL-c: Low-density lipoprotein cholesterol; HDL-c: High-density lipoprotein cholesterol; Crisp1: Cysteine-rich secretory protein 1; SIRT1: Sirtuin 1; GPx5: Glutathione peroxidase 5; Svs4: Seminal vesicle secretory protein 4; Tssk3: Testis-specific serine kinase 3; Pate4: Prostate and testis expressed 4; Sva: Seminal vesicle antigen; Lcn5: Lipocalin 5; Spinkl: Serine protease inhibitor, Kazal type-like.
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Affiliation(s)
- Zheng-Mei Lv
- Department of Histology and Embryology, Anhui Medical University, Hefei, China
| | - Meng-Yu Ling
- Department of Histology and Embryology, Anhui Medical University, Hefei, China
| | - Chao Chen
- Department of Histology and Embryology, Anhui Medical University, Hefei, China
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87
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Zhou J, Xi Y, Zhang J, Tang J, Zhou X, Chen J, Nie C, Zhu Z, Ma B. Protective effect of Dioscorea zingiberensis ethanol extract on the disruption of blood-testes barrier in high-fat diet/streptozotocin-induced diabetic mice by upregulating ZO-1 and Nrf2. Andrologia 2020; 52:e13508. [PMID: 31957918 DOI: 10.1111/and.13508] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Revised: 11/19/2019] [Accepted: 12/02/2019] [Indexed: 12/15/2022] Open
Abstract
Testicular injury is the primary pathogenesis of diabetes-induced male infertility. Dioscorea zingiberensis (DZ), a traditional Chinese medicine (TCM) including saponins, flavonoids and cellulose, is used to treat diseases in the reproductive system. But the protective effects of DZ on diabetes-induced testicular injury remain poorly understood. In this study, the therapeutic effects of chronic oral DZ treatment on testis impairment in a diabetic mouse model were explored by assessing sperm morphology, blood-testes barrier (BTB) integrity and testicular histological examination. Our results showed that DZ significantly reversed BTB disruption, testicular tissue injury and abnormal sperm morphology in diabetic mice. Interestingly, diabetes-induced disruption of the BTB was associated with a decrease in the tight junction (TJ) protein zonula occludens-1 (ZO-1). Dioscorea zingiberensis effectively increased ZO-1 expression in testis tissue to restore the integrity of the BTB. Moreover, DZ treatment significantly reduced hyperglycaemia-induced increases in malondialdehyde (MDA) and 8-hydroxy-2'-deoxyguanosine (8-OHdG) levels. Further mechanistic studies revealed that DZ substantially enhanced the expression of Nrf2, NOQ1 and HO-1, which indicated that DZ exerts potential antioxidant effects against testicular tissue damage via the activation of Nrf2. In conclusion, the protective effects of DZ rely on repairing the integrity of the BTB and on reducing oxidative stress damage by mediating ZO-1 and Nrf2. The study contributes to discovering the DZ possible mechanism of action.
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Affiliation(s)
- Jie Zhou
- School of Pharmaceutical Sciences, Jiangsu Health Vocational College, Nanjing, China
| | - Youli Xi
- Department of Pharmacy, Nanjing Drum Tower Hospital, Nanjing, China
| | - Jie Zhang
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing, China
| | - Jun Tang
- Jiangsu Huanghe Pharmaceutical Co., Ltd, Yancheng, China
| | - Xiaowei Zhou
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing, China
| | - Jiayi Chen
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing, China
| | - Chao Nie
- School of Pharmaceutical Sciences, Jiangsu Health Vocational College, Nanjing, China
| | - Zhengbiao Zhu
- Jiangsu Huanghe Pharmaceutical Co., Ltd, Yancheng, China
| | - Bo Ma
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing, China
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88
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Zhou Q, Cheng C, Wei Y, Yang J, Zhou W, Song Q, Ke M, Yan W, Zheng L, Zhang Y, Huang K. USP15 potentiates NF-κB activation by differentially stabilizing TAB2 and TAB3. FEBS J 2020; 287:3165-3183. [PMID: 31903660 DOI: 10.1111/febs.15202] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Revised: 10/29/2019] [Accepted: 01/03/2020] [Indexed: 12/25/2022]
Abstract
Tumor necrosis factor α (TNFα)- and interleukin 1β (IL-1β)-induced nuclear factor-κB (NF-κB) activation play key roles in inflammation, immunity, and cancer development. Here, we identified one of the deubiquitinating enzymes (DUBs), ubiquitin-specific protease 15 (USP15), as a positive regulator in both TNFα- and IL-1β-induced NF-κB activation. Overexpression of USP15 potentiated TNFα- or IL-1β-triggered NF-κB activation and downstream gene transcription, whereas knockdown of USP15 had opposite effects. Mechanistically, upon TNFα stimulation, USP15 showed an enhanced interaction with transforming growth factor-β activated kinase-1 (TAK1)-TAK1 binding protein (TAB) complex to inhibit the proteolysis of TAB2/3 by different pathways. Apart from deubiquitination dependently inducing cleavage of lysine 48-linked TAB2 ubiquitination, USP15 also DUB independently inhibited lysosome-associated TAB2 degradation, thus enhanced TAB2 stabilization. For TAB3, USP15 inhibited NBR1-mediated selective autophagic TAB3 degradation independent of its deubiquitinating activity. Together, our results reveal a novel USP15-mediated mechanism through which efficient NF-κB activation is achieved by differentially maintaining the TAB2/3 stability.
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Affiliation(s)
- Qiaoqiao Zhou
- Tongji School of Pharmacy, Tongji Medical College, Huazhong University of Science & Technology, Wuhan, China
| | - Cheng Cheng
- Tongji School of Pharmacy, Tongji Medical College, Huazhong University of Science & Technology, Wuhan, China
| | - Yujuan Wei
- Tongji School of Pharmacy, Tongji Medical College, Huazhong University of Science & Technology, Wuhan, China
| | - Jing Yang
- Tongji School of Pharmacy, Tongji Medical College, Huazhong University of Science & Technology, Wuhan, China
| | - Wanzhu Zhou
- Tongji School of Pharmacy, Tongji Medical College, Huazhong University of Science & Technology, Wuhan, China
| | - Qiuyi Song
- Tongji School of Pharmacy, Tongji Medical College, Huazhong University of Science & Technology, Wuhan, China
| | - Mengxiang Ke
- Tongji School of Pharmacy, Tongji Medical College, Huazhong University of Science & Technology, Wuhan, China
| | - Wanyao Yan
- Tongji School of Pharmacy, Tongji Medical College, Huazhong University of Science & Technology, Wuhan, China
| | - Ling Zheng
- Hubei Key Laboratory of Cell Homeostasis, College of Life Sciences, Wuhan University, China
| | - Yu Zhang
- Tongji School of Pharmacy, Tongji Medical College, Huazhong University of Science & Technology, Wuhan, China
| | - Kun Huang
- Tongji School of Pharmacy, Tongji Medical College, Huazhong University of Science & Technology, Wuhan, China
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Wang X, Fang H, Xu G, Yang Y, Xu R, Liu Q, Xue X, Liu J, Wang H. Resveratrol Prevents Cognitive Impairment in Type 2 Diabetic Mice by Upregulating Nrf2 Expression and Transcriptional Level. Diabetes Metab Syndr Obes 2020; 13:1061-1075. [PMID: 32308456 PMCID: PMC7150671 DOI: 10.2147/dmso.s243560] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/24/2019] [Accepted: 03/26/2020] [Indexed: 12/18/2022] Open
Abstract
PURPOSE This study aimed to determine whether the natural antioxidant resveratrol (RSV) prevents type 2 diabetes mellitus (T2DM)-induced cognitive impairment and to explore whether redox-associated factor nuclear factor erythroid 2-related factor 2 (Nrf2) plays a critical role in the neuroprotective effect of RSV. MATERIALS AND METHODS We established a T2DM model with 8-week-old male ICR mice by administration of a high-fat diet for 2 months and low-dose streptozotocin for 3 days. Then, diabetic and age-matched control mice were treated with or without RSV for 4 months every other day and subjected to the Morris water maze test. After the mice were euthanized, whole brains were sectioned for Nissl staining and immunofluorescence labeling. Hippocampal sections were observed by transmission electron microscopy to evaluate the ultrastructure of synapses. Inflammatory factors, oxidative stress-related indexes, and Nrf2 and downstream target gene expression were analyzed in hippocampal tissues by quantitative real-time PCR, Western blotting, and associated quantitative kits. RESULTS In the Morris water maze test, compared to control mice, T2DM mice showed learning and memory impairments, but RSV treatment prevented the learning and memory decline in T2DM mice. Similarly, RSV prevented T2DM-induced hippocampal neuron destruction and synaptic ultrastructural damage. The expression levels of inflammatory factors and oxidative stress-related indicators were increased in the T2DM group compared with the control group but were decreased significantly by RSV treatment in the T2DM group. Additionally, the expression of Nrf2 and its downstream target genes was decreased in the T2DM group compared with the control group and was significantly increased by RSV treatment in the T2DM group. CONCLUSION RSV prevented T2DM-induced cognitive impairment through anti-inflammatory and antioxidant activities. This effect was accompanied by the upregulation of Nrf2 transcriptional activity and the increased expression of downstream antioxidant genes.
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Affiliation(s)
- Xiaoxiao Wang
- Department of Internal Medicine, Hebei Medical University, Shijiazhuang, Hebei050017, People’s Republic of China
| | - Hui Fang
- Second Department of Endocrinology, Tangshan Gongren Hospital, Tangshan, Hebei063000, People’s Republic of China
- Correspondence: Hui Fang Second Department of Endocrinology, Tangshan Gongren Hospital, 27 Wenhua Road, Lubei District, Tangshan, Hebei063000, People’s Republic of ChinaTel +86-13831581838Fax +00863152814801 Email
| | - Gang Xu
- Department of Burns and Orthopedics, Tangshan Gongren Hospital, Tangshan, Hebei063000, People’s Republic of China
| | - Ying Yang
- Second Department of Endocrinology, Tangshan Gongren Hospital, Tangshan, Hebei063000, People’s Republic of China
| | - Ruizhe Xu
- Department of Clinical Medicine, Tangshan Vocational and Technical College, Tangshan, Hebei, 063000, People’s Republic of China
| | - Qiang Liu
- Department of Internal Medicine, North China University of Science and Technology, Tangshan, Hebei063000, People’s Republic of China
| | - Xiangyu Xue
- Department of Internal Medicine, North China University of Science and Technology, Tangshan, Hebei063000, People’s Republic of China
| | - Jiaqi Liu
- Department of Internal Medicine, North China University of Science and Technology, Tangshan, Hebei063000, People’s Republic of China
| | - Hezhi Wang
- Department of Surgery, Hebei Medical University, Shijiazhuang050017, People’s Republic of China
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90
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Millán I, Desco MDC, Torres-Cuevas I, Pérez S, Pulido I, Mena-Mollá S, Mataix J, Asensi M, Ortega ÁL. Pterostilbene Prevents Early Diabetic Retinopathy Alterations in a Rabbit Experimental Model. Nutrients 2019; 12:nu12010082. [PMID: 31892189 PMCID: PMC7019414 DOI: 10.3390/nu12010082] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Revised: 12/05/2019] [Accepted: 12/23/2019] [Indexed: 12/13/2022] Open
Abstract
Oxidative stress generated by diabetes plays a key role in the development of diabetic retinopathy (DR), a common diabetic complication. DR remains asymptomatic until it reaches advanced stages, which complicate its treatment. Although it is known that good metabolic control is essential for preventing DR, knowledge of the disease is incomplete and an effective treatment with no side effects is lacking. Pterostilbene (Pter), a natural stilbene with good antioxidant activity, has proved to beneficially affect different pathologies, including diabetes. Therefore, our study aimed to analyse the protective and/or therapeutic capacity of Pter against oxidant damage by characterising early retinal alterations induced by hyperglycaemia, and its possible mechanism of action in a rabbit model of type 1 diabetes mellitus. Pter reduced lipid and protein oxidative damage, and recovered redox status and the main activities of antioxidant enzymes. Moreover, the redox regulation by Pter was associated with activation of the PI3K/AKT/GSK3β/NRF2 pathway. Our results show that Pter is a powerful protective agent that may delay early DR development.
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Affiliation(s)
- Iván Millán
- Health Research Institute La Fe, Neonatal Research Group, Av. Fernando Abril Martorell 106, 46026 Valencia, Spain; (I.M.); (I.T.-C.)
| | - María del Carmen Desco
- FISABIO Oftalmología Médica, Vitreo-retina unit, Bif. Pío Baroja General Avilés s/n, 46015 Valencia, Spain; (M.d.C.D.); (J.M.)
| | - Isabel Torres-Cuevas
- Health Research Institute La Fe, Neonatal Research Group, Av. Fernando Abril Martorell 106, 46026 Valencia, Spain; (I.M.); (I.T.-C.)
| | - Salvador Pérez
- Faculty of Pharmacy, Department of Physiology, University of Valencia, Vicente Andrés Estellés Av. s/n, 46100 Burjassot, Spain; (S.P.); (I.P.); (S.M.-M.); (M.A.)
| | - Inés Pulido
- Faculty of Pharmacy, Department of Physiology, University of Valencia, Vicente Andrés Estellés Av. s/n, 46100 Burjassot, Spain; (S.P.); (I.P.); (S.M.-M.); (M.A.)
| | - Salvador Mena-Mollá
- Faculty of Pharmacy, Department of Physiology, University of Valencia, Vicente Andrés Estellés Av. s/n, 46100 Burjassot, Spain; (S.P.); (I.P.); (S.M.-M.); (M.A.)
| | - Jorge Mataix
- FISABIO Oftalmología Médica, Vitreo-retina unit, Bif. Pío Baroja General Avilés s/n, 46015 Valencia, Spain; (M.d.C.D.); (J.M.)
| | - Miguel Asensi
- Faculty of Pharmacy, Department of Physiology, University of Valencia, Vicente Andrés Estellés Av. s/n, 46100 Burjassot, Spain; (S.P.); (I.P.); (S.M.-M.); (M.A.)
| | - Ángel Luis Ortega
- Faculty of Pharmacy, Department of Physiology, University of Valencia, Vicente Andrés Estellés Av. s/n, 46100 Burjassot, Spain; (S.P.); (I.P.); (S.M.-M.); (M.A.)
- Correspondence: ; Tel.: +34-9-6354-3817
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91
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Ramalingam A, Santhanathas T, Shaukat Ali S, Zainalabidin S. Resveratrol Supplementation Protects Against Nicotine-Induced Kidney Injury. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2019; 16:ijerph16224445. [PMID: 31726798 PMCID: PMC6888267 DOI: 10.3390/ijerph16224445] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 10/16/2019] [Accepted: 10/16/2019] [Indexed: 12/20/2022]
Abstract
Prolonged exposure to nicotine accelerates onset and progression of renal diseases in habitual cigarette smokers. Exposure to nicotine, either via active or passive smoking is strongly shown to enhance renal oxidative stress and augment kidney failure in various animal models. In this study, we investigated the effects of resveratrol supplementation on nicotine-induced kidney injury and oxidative stress in a rat model. Male Sprague-Dawley rats were given nicotine (0.6 mg/kg, i.p.) alone or in combination with either resveratrol (8 mg/kg, i.p.), or angiotensin II type I receptor blocker, irbesartan (10 mg/kg, p.o.) for 28 days. Upon completion of treatment, kidneys were investigated for changes in structure, kidney injury markers and oxidative stress. Administration of nicotine alone for 28 days resulted in significant renal impairment as shown by marked increase in plasma creatinine, blood urea nitrogen (BUN) and oxidative stress. Co-administration with resveratrol however successfully attenuated these changes, with a concomitant increase in renal antioxidants such as glutathione similar to the conventionally used angiotensin II receptor blocker, irbesartan. These data altogether suggest that targeting renal oxidative stress with resveratrol could alleviate nicotine-induced renal injury. Antioxidants may be clinically important for management of renal function in habitual smokers.
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Affiliation(s)
- Anand Ramalingam
- Programme of Biomedical Science, Faculty of Health Sciences, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, Kuala Lumpur 50300, Malaysia; (A.R.); (T.S.); (S.S.A.)
| | - Thulasiprevinnah Santhanathas
- Programme of Biomedical Science, Faculty of Health Sciences, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, Kuala Lumpur 50300, Malaysia; (A.R.); (T.S.); (S.S.A.)
- Institut Latihan Kementerian Kesihatan Malaysia, Jalan Pahang, Kuala Lumpur 50588, Malaysia
| | - Shafreena Shaukat Ali
- Programme of Biomedical Science, Faculty of Health Sciences, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, Kuala Lumpur 50300, Malaysia; (A.R.); (T.S.); (S.S.A.)
| | - Satirah Zainalabidin
- Programme of Biomedical Science, Faculty of Health Sciences, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, Kuala Lumpur 50300, Malaysia; (A.R.); (T.S.); (S.S.A.)
- Correspondence: ; Tel.: +603-9289-7684
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92
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Ma B, Zhang J, Zhu Z, Bao X, Zhang M, Ren C, Zhang Q. Aucubin, a natural iridoid glucoside, attenuates oxidative stress-induced testis injury by inhibiting JNK and CHOP activation via Nrf2 up-regulation. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2019; 64:153057. [PMID: 31419730 DOI: 10.1016/j.phymed.2019.153057] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Revised: 06/28/2019] [Accepted: 07/26/2019] [Indexed: 06/10/2023]
Abstract
BACKGROUND Eucommia ulmoides has been used for many years as a successful strategy to treat male infertility. Aucubin (AU) is the active ingredient extracted from Eucommia ulmoides. However, its protective action and exact mechanism on testicular injury is not yet known. PURPOSE Here, the protective effect and the mechanism of action of AU on testis damage under oxidative stress was investigated in vivo and in vitro. METHODS As regard the in vivo experiment, male mice were divided into five groups and testicular injury model was established by Triptolide (TP) (120 μg/kg) intraperitoneal injection for two weeks. Animals in the treatment group were pretreated with an intraperitoneal injection of AU at different doses (5, 10 and 20 mg/kg) for 1 h and subsequently treated with TP (120 μg/kg). At the end of the experimental period, the testis was collected for biochemical and histological examination. As regard the in vitro experiment, Sertoli cells (SCs) were used to investigate the protective effect and mechanism of action of AU against disruption of the blood-testis-barrier (BTB) and apoptosis induced by TP via apoptosis detection, western blot, immunofluorescence analysis, and siRNA transient transfection. RESULTS TP-treated animals showed testicular atrophy, BTB disruption, increased ROS levels and spermatogenic dysfunction. Pre-administration of AU resulted in a significant protection on keeping a normal testicular weight, sperm morphology, BTB integrity, and a normal level of oxidative stress markers and antioxidants. Furthermore, AU prevented apoptosis through an effective inhibition of PERK/CHOP and JNK dependent apoptosis pathway, as well as protected the integrity of BTB by up-regulating the expression of tight junction proteins (ZO-1, Occludin, Claudin-11) and gap junction protein (Cx43). The mechanistic study revealed that AU significantly triggered Nrf2 translocation, thus increasing nuclear Nrf2 accumulation and then induced antioxidant enzymes expression in the testis and SCs. Furthermore, Nrf2 silencing unsuccessfully reversed the increased CHOP and p-JNK expression induced by TP, abolishing the protective effect of AU. CONCLUSION These results indicate that AU might be considered as a potential protective agent against testicular injury.
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Affiliation(s)
- Bo Ma
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 210009, People's Republic of China
| | - Jie Zhang
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 210009, People's Republic of China
| | - Zhiming Zhu
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 210009, People's Republic of China
| | - Xiaowen Bao
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 210009, People's Republic of China
| | - Mingya Zhang
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 210009, People's Republic of China
| | - Chaoxing Ren
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 210009, People's Republic of China
| | - Qi Zhang
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 210009, People's Republic of China.
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93
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Zhou Y, Jiang Z, Lu H, Xu Z, Tong R, Shi J, Jia G. Recent Advances of Natural Polyphenols Activators for Keap1-Nrf2 Signaling Pathway. Chem Biodivers 2019; 16:e1900400. [PMID: 31482617 DOI: 10.1002/cbdv.201900400] [Citation(s) in RCA: 93] [Impact Index Per Article: 18.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Accepted: 09/03/2019] [Indexed: 01/01/2023]
Abstract
The Keap1-Nrf2/ARE signaling pathway is an important defense system against exogenous and endogenous oxidative stress injury. The dysregulation of the signaling pathway is associated with many diseases, such as cancer, diabetes, and respiratory diseases. Over the years, a wide range of natural products has provided sufficient resources for the discovery of potential therapeutic drugs. Among them, polyphenols possess Nrf2 activation, not only inhibit the production of ROS, inhibit Keap1-Nrf2 protein-protein interaction, but also degrade Keap1 and regulate the Nrf2 related pathway. In fact, with the continuous improvement of natural polyphenols separation and purification technology and further studies on the Keap1-Nrf2 molecular mechanism, more and more natural polyphenols monomer components of Nrf2 activators have been gradually discovered. In this view, we summarize the research status of natural polyphenols that have been found with apparent Nrf2 activation and their action modes. On the whole, this review may guide the design of novel Keap1-Nrf2 activator.
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Affiliation(s)
- Yanping Zhou
- Personalized Drug Therapy Key Laboratory of Sichuan Province, Sichuan Academy of Medical Science & Sichuan Provincial People's Hospital, School of Medicine of University of Electronic Science and Technology of China, No. 32 West Second Section First Ring Road, Chengdu, 610072, P. R. China
| | - Zhongliang Jiang
- Department of Hematology, Miller School of Medicine, University of Miami, Miami, 33136, USA
| | - Haiying Lu
- Personalized Drug Therapy Key Laboratory of Sichuan Province, Sichuan Academy of Medical Science & Sichuan Provincial People's Hospital, School of Medicine of University of Electronic Science and Technology of China, No. 32 West Second Section First Ring Road, Chengdu, 610072, P. R. China
| | - Zhuyu Xu
- Personalized Drug Therapy Key Laboratory of Sichuan Province, Sichuan Academy of Medical Science & Sichuan Provincial People's Hospital, School of Medicine of University of Electronic Science and Technology of China, No. 32 West Second Section First Ring Road, Chengdu, 610072, P. R. China
| | - Rongsheng Tong
- Personalized Drug Therapy Key Laboratory of Sichuan Province, Sichuan Academy of Medical Science & Sichuan Provincial People's Hospital, School of Medicine of University of Electronic Science and Technology of China, No. 32 West Second Section First Ring Road, Chengdu, 610072, P. R. China
| | - Jianyou Shi
- Personalized Drug Therapy Key Laboratory of Sichuan Province, Sichuan Academy of Medical Science & Sichuan Provincial People's Hospital, School of Medicine of University of Electronic Science and Technology of China, No. 32 West Second Section First Ring Road, Chengdu, 610072, P. R. China
| | - Guiqing Jia
- Department of Gastrointestinal Surgery, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, Chengdu, 610072, P. R. China
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Nna VU, Abu Bakar AB, Ahmad A, Eleazu CO, Mohamed M. Oxidative Stress, NF-κB-Mediated Inflammation and Apoptosis in the Testes of Streptozotocin-Induced Diabetic Rats: Combined Protective Effects of Malaysian Propolis and Metformin. Antioxidants (Basel) 2019; 8:antiox8100465. [PMID: 31600920 PMCID: PMC6826571 DOI: 10.3390/antiox8100465] [Citation(s) in RCA: 79] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Revised: 10/05/2019] [Accepted: 10/08/2019] [Indexed: 02/07/2023] Open
Abstract
Oxidative stress, inflammation and apoptosis are major complications that trigger organ failure in diabetes mellitus (DM), and are proven to adversely affect the male reproductive system. Clinical and experimental studies have demonstrated the promising protective effects of propolis in DM and its associated systemic effects. Herein, we investigated the effect of Malaysian propolis (MP) on testicular oxidative stress, inflammation and apoptosis in diabetic rats. Further, the possibility of a complementary effect of MP with the anti-hyperglycaemic agent, metformin (Met), was studied with the idea of recommending its use in the event that Met alone is unable to contain the negative effects of DM on the male reproductive system in mind. Male Sprague-Dawley rats were either gavaged distilled water (normoglycaemic control and diabetic control groups), MP (diabetic rats on MP), Met (diabetic rats on Met) or MP+Met (diabetic rats on MP+Met), for 4 weeks. MP decreased oxidative stress by up-regulating (p < 0.05) testicular mRNA levels of nuclear factor erythroid 2-related factor 2, superoxide dismutase, catalase and glutathione peroxidase; increasing (p < 0.05) the activities of antioxidant enzymes; and decreasing (p < 0.05) lipid peroxidation in the testes and epididymis of diabetic rats. Further, MP down-regulated (p < 0.05) testicular mRNA and protein levels of pro-inflammatory mediators (nuclear factor kappa B, inducible nitric oxide synthase, tumour necrosis factor-α and interleukin (IL)-1β), decreased (p < 0.05) the nitric oxide level, and increased (p < 0.05) IL-10 mRNA and protein levels. MP also down-regulated (p < 0.05) Bax/Bcl-2, p53, casapase-8, caspase-9 and caspase-3 genes, and increased (p < 0.05) testicular germ cell proliferation. MP's effects were comparable to Met. However, the best results were achieved following co-administration of MP and Met. Therefore, we concluded that administration of the MP+Met combination better attenuates testicular oxidative stress, inflammation and apoptosis in DM, relative to MP or Met monotherapy, and may improve the fertility of males with DM.
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Affiliation(s)
- Victor Udo Nna
- Department of Physiology, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian 16150, Kelantan, Malaysia.
- Department of Physiology, Faculty of Basic Medical Sciences, College of Medical Sciences, University of Calabar, Calabar P.M.B. 1115, Cross River State, Nigeria.
| | - Ainul Bahiyah Abu Bakar
- Department of Physiology, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian 16150, Kelantan, Malaysia.
| | - Azlina Ahmad
- Basic Science and Oral Biology Unit, School of Dental Sciences, Universiti Sains Malaysia, Kubang Kerian 16150, Kelantan, Malaysia.
| | - Chinedum Ogbonnaya Eleazu
- Department of Physiology, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian 16150, Kelantan, Malaysia.
- Department of Chemistry/Biochemistry/Molecular Biology, Federal University Ndufu Alaike Ikwo, Abakiliki P.M.B. 10, Ebonyi State, Nigeria.
| | - Mahaneem Mohamed
- Department of Physiology, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian 16150, Kelantan, Malaysia.
- Unit of Integrative Medicine, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian 16150, Kelantan, Malaysia.
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95
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Treml J, Leláková V, Šmejkal K, Paulíčková T, Labuda Š, Granica S, Havlík J, Jankovská D, Padrtová T, Hošek J. Antioxidant Activity of Selected Stilbenoid Derivatives in a Cellular Model System. Biomolecules 2019; 9:E468. [PMID: 31505897 PMCID: PMC6770161 DOI: 10.3390/biom9090468] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Revised: 08/30/2019] [Accepted: 09/03/2019] [Indexed: 01/06/2023] Open
Abstract
The stilbenoids, a group of naturally occurring phenolic compounds, are found in a variety of plants, including some berries that are used as food or for medicinal purposes. They are known to be beneficial for human health as anti-inflammatory, chemopreventive, and antioxidative agents. We have investigated a group of 19 stilbenoid substances in vitro using a cellular model of THP-1 macrophage-like cells and pyocyanin-induced oxidative stress to evaluate their antioxidant or pro-oxidant properties. Then we have determined any effects that they might have on the expression of the enzymes catalase, glutathione peroxidase, and heme oxygenase-1, and their effects on the activation of Nrf2. The experimental results showed that these stilbenoids could affect the formation of reactive oxygen species in a cellular model, producing either an antioxidative or pro-oxidative effect, depending on the structure pinostilbene (2) worked as a pro-oxidant and also decreased expression of catalase in the cell culture. Piceatannol (4) had shown reactive oxygen species (ROS) scavenging activity, whereas isorhapontigenin (18) had a mild direct antioxidant effect and activated Nrf2-antioxidant response element (ARE) system and elevated expression of Nrf2 and catalase. Their effects shown on cells in vitro warrant their further study in vivo.
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Affiliation(s)
- Jakub Treml
- Department of Molecular Biology and Pharmaceutical Biotechnology, Faculty of Pharmacy, University of Veterinary and Pharmaceutical Sciences Brno, 61242 Brno, Czech Republic.
| | - Veronika Leláková
- Department of Molecular Biology and Pharmaceutical Biotechnology, Faculty of Pharmacy, University of Veterinary and Pharmaceutical Sciences Brno, 61242 Brno, Czech Republic.
| | - Karel Šmejkal
- Department of Natural Drugs, Faculty of Pharmacy, University of Veterinary and Pharmaceutical Sciences Brno, 61242 Brno, Czech Republic.
| | - Tereza Paulíčková
- Department of Molecular Biology and Pharmaceutical Biotechnology, Faculty of Pharmacy, University of Veterinary and Pharmaceutical Sciences Brno, 61242 Brno, Czech Republic.
- Department of Natural Drugs, Faculty of Pharmacy, University of Veterinary and Pharmaceutical Sciences Brno, 61242 Brno, Czech Republic.
| | - Šimon Labuda
- Department of Molecular Biology and Pharmaceutical Biotechnology, Faculty of Pharmacy, University of Veterinary and Pharmaceutical Sciences Brno, 61242 Brno, Czech Republic.
| | - Sebastian Granica
- Department of Pharmacognosy and Molecular Basis of Phytotherapy, Faculty of Pharmacy, Medical University of Warsaw, 02-097 Warsaw, Poland.
| | - Jaroslav Havlík
- Department of Food Science, The Faculty of Agrobiology, Food and Natural Resources, The Czech University of Life Sciences Prague, 16500 Prague, Czech Republic.
| | - Dagmar Jankovská
- Department of Natural Drugs, Faculty of Pharmacy, University of Veterinary and Pharmaceutical Sciences Brno, 61242 Brno, Czech Republic.
| | - Tereza Padrtová
- Department of Medicinal Chemistry, Faculty of Pharmacy, University of Veterinary and Pharmaceutical Sciences Brno, 61242 Brno, Czech Republic.
| | - Jan Hošek
- Department of Molecular Biology and Pharmaceutical Biotechnology, Faculty of Pharmacy, University of Veterinary and Pharmaceutical Sciences Brno, 61242 Brno, Czech Republic
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96
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Small molecules from natural products targeting the Wnt/β-catenin pathway as a therapeutic strategy. Biomed Pharmacother 2019; 117:108990. [DOI: 10.1016/j.biopha.2019.108990] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2019] [Revised: 05/09/2019] [Accepted: 05/13/2019] [Indexed: 02/06/2023] Open
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97
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Naas H, de Oliveira AA, Karpova T, Nunes KP. Toll-like receptor 4 (TLR4) as a possible pathological mechanism in hyperglycemia-associated testicular dysfunction. Med Hypotheses 2019; 127:116-119. [DOI: 10.1016/j.mehy.2019.04.010] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Accepted: 04/12/2019] [Indexed: 12/20/2022]
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98
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Resveratrol attenuates high-fat diet-induced non-alcoholic steatohepatitis by maintaining gut barrier integrity and inhibiting gut inflammation through regulation of the endocannabinoid system. Clin Nutr 2019; 39:1264-1275. [PMID: 31189495 DOI: 10.1016/j.clnu.2019.05.020] [Citation(s) in RCA: 73] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2019] [Revised: 04/27/2019] [Accepted: 05/21/2019] [Indexed: 01/21/2023]
Abstract
BACKGROUND & AIMS This study aims to investigate the ameliorative effects of resveratrol (RSV) in a high-fat diet (HFD)-induced non-alcoholic steatohepatitis (NASH) rat model, focusing on the gut endocannabinoid system (ECS), regulated by RSV, in the maintenance of gut barrier integrity and inhibition of gut inflammation. METHODS AND RESULTS Male Sprague-Dawley (SD) rats were fed HFD with or without RSV for 6 weeks. The HFD caused increase in body weight, liver index, hepatic lipid accumulation, and inflammation, which was inhibited by RSV. RSV also attenuated gut microbial dysbiosis, with an increase in Akkermansia muciniphila, Ruminococcaceae, and Lachnospiraceae, and a decrease in Desulfovibrio. Moreover, RSV led to a reduction of metabolic endotoxemia and colon inflammation in HFD-fed rats. This was indicated by a decrease in bacterial invasion and translocation along with up-regulation of the mRNA levels of occludin, ZO1, claudin1, and down-regulation of FAK, MyD88, and IRAK4 in the distal colon. Furthermore, RSV inhibited HFD-induced elevation in the expression of cannabinoid receptor type 1 (CB1) mRNA and suppressed CB2 mRNA levels in the colon. The RSV-induced benefits regarding enhanced gut barrier integrity and reduced intestinal permeability were abrogated with a CB1 agonist, ACEA, whereas the inhibitory effect of RSV on the intestinal inflammation was abolished by a CB2 antagonist, AM630. Moreover, microbiota depletion using a cocktail of antibiotics was sufficient to block RSV-induced reduction in intestinal permeability and gut inflammation, as well as the altered mRNA expressions of CB1 and CB2 in the distal colon. CONCLUSIONS These data indicate that the ECS, particularly the expressions of CB1 and CB2, appears to play a crucial role in the RSV induced anti-NASH effect by maintaining the gut barrier integrity and inhibiting gut inflammation.
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99
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Sun S, Zhang H, Shan K, Sun T, Lin M, Jia L, Chen YQ. Effect of Different Cereal Peptides on the Development of Type 1 Diabetes is Associated with Their Anti‐inflammatory Ability: In Vitro and In Vivo Studies. Mol Nutr Food Res 2019; 63:e1800987. [DOI: 10.1002/mnfr.201800987] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2018] [Revised: 01/20/2019] [Indexed: 12/31/2022]
Affiliation(s)
- Suling Sun
- School of MedicineJiangnan University Wuxi 214122 P. R. China
- State Key Laboratory of Food Science and TechnologyJiangnan University Wuxi 214122 P. R. China
- School of Food Science and TechnologyJiangnan University Wuxi 214122 P. R. China
| | - Hao Zhang
- State Key Laboratory of Food Science and TechnologyJiangnan University Wuxi 214122 P. R. China
- School of Food Science and TechnologyJiangnan University Wuxi 214122 P. R. China
| | - Kai Shan
- School of MedicineJiangnan University Wuxi 214122 P. R. China
- State Key Laboratory of Food Science and TechnologyJiangnan University Wuxi 214122 P. R. China
- School of Food Science and TechnologyJiangnan University Wuxi 214122 P. R. China
| | - Tianjun Sun
- Department of Biochemistry & Molecular Biology & Center for Blood ResearchUniversity of British Columbia 2350 Health Sciences Mall Vancouver British Columbia V6T 1Z3 Canada
| | - Mengyuan Lin
- Wuxi Maternal and Child Health Hospital P. R. China
| | - Lingling Jia
- School of MedicineJiangnan University Wuxi 214122 P. R. China
- State Key Laboratory of Food Science and TechnologyJiangnan University Wuxi 214122 P. R. China
- School of Food Science and TechnologyJiangnan University Wuxi 214122 P. R. China
| | - Yong Q. Chen
- School of MedicineJiangnan University Wuxi 214122 P. R. China
- State Key Laboratory of Food Science and TechnologyJiangnan University Wuxi 214122 P. R. China
- School of Food Science and TechnologyJiangnan University Wuxi 214122 P. R. China
- Departments of Cancer Biology and BiochemistryWake Forest School of Medicine Winston‐Salem NC 27157 USA
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100
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Zhang B, Wang G, He J, Yang Q, Li D, Li J, Zhang F. Icariin attenuates neuroinflammation and exerts dopamine neuroprotection via an Nrf2-dependent manner. J Neuroinflammation 2019; 16:92. [PMID: 31010422 PMCID: PMC6477740 DOI: 10.1186/s12974-019-1472-x] [Citation(s) in RCA: 60] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Accepted: 04/01/2019] [Indexed: 12/27/2022] Open
Abstract
Background Oxidative stress and neuroinflammation are considered the major central events in the process of Parkinson’s disease (PD). Nrf2 is a key regulator of endogenous defense systems. New finds have contacted activation of Nrf2 signaling with anti-inflammatory activities. Therefore, the outstanding inhibition of neuroinflammation or potent Nrf2 signaling activation holds a promising strategy for PD treatment. Icariin (ICA), a natural compound derived from Herba Epimedii, presents a number of pharmacological properties, including anti-oxidation, anti-aging and anti-inflammatory actions. Recent studies have confirmed ICA exerted neuroprotection against neurodegenerative disorders. However, the underlying mechanisms were not fully elucidated. Methods In the present study, mouse nigral stereotaxic injection of 6-hydroxydopamine (6-OHDA)-induced PD model was performed to investigate ICA-conferred dopamine (DA) neuroprotection. In addition, adult Nrf2 knockout mice and primary rat midbrain neuron-glia co-culture was applied to elucidate whether ICA-exerted neuroprotection was through an Nrf2-dependent mechanism. Results Results indicated that ICA attenuated 6-OHDA-induced DA neurotoxicity and glial cells-mediated neuroinflammatory response. Furtherly, activation of Nrf2 signaling pathway in glial cells participated in ICA-produced neuroprotection, as revealed by the following observations. First, ICA enhanced Nrf2 signaling activation in 6-OHDA-induced mouse PD model. Second, ICA failed to generate DA neuroprotection and suppress glial cells-mediated pro-inflammatory factors production in Nrf2 knockout mice. Third, ICA exhibited neuroprotection in primary neuron-glia co-cultures but not in neuron-enriched cultures (without glial cells presence). Either, ICA-mediated neuroprotection was not discerned after Nrf2 siRNA treatment in neuron-glia co-cultures. Conclusions Our findings identify that ICA attenuated glial cells-mediated neuroinflammation and evoked DA neuroprotection via an Nrf2-dependent manner. Electronic supplementary material The online version of this article (10.1186/s12974-019-1472-x) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Bei Zhang
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi, Guizhou, China
| | - Guoqing Wang
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi, Guizhou, China
| | - Jingyi He
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi, Guizhou, China
| | - Qiuyu Yang
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi, Guizhou, China
| | - Daidi Li
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi, Guizhou, China
| | - Jingjie Li
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi, Guizhou, China
| | - Feng Zhang
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi, Guizhou, China.
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