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Kiani M, Soleimani Mehranjani M, Ali Shariatzadeh M. Empagliflozin reduces the adverse effects of diabetes mellitus on testicular tissue in type 2 diabetic Rats: A stereological and biochemical study. Biochem Pharmacol 2024; 223:116135. [PMID: 38508421 DOI: 10.1016/j.bcp.2024.116135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2023] [Revised: 03/11/2024] [Accepted: 03/14/2024] [Indexed: 03/22/2024]
Abstract
Empagliflozin as an antioxidant decreases blood glucose and insulin resistance in type 2 diabetes mellitus. Base on the empagliflozin antioxidant properties we decided to investigate the its effects on the testis histological changes through stereological techniques and biochemical evaluations in T2 diabetes mellitus rats. Rats were divided into: control, diabetes mellitus (DM, streptozotocin + nicotinamide) and diabetes mellitus + empagliflozin (DM + EMPA, 10 mg/kg/day) groups. 56 days after inducing diabetes mellitus testis histological changes and serum biochemical factors along with the level of Bax, Bcl2 and Nrf2 genes expression in the testicular tissue were assessed. A significant decrease in the mean total volume of testis and its components, the level of Bcl2 and Nrf2 gene expression (p < 0.001) along with a significant increase in the level of IL-6, TNF-α, MDA, Bax gene expression were observed in the DM group compared to the control group (p < 0.001). In the DM + EMPA group, the mean total volume of testis and its components, the level of Bcl2 gene expression (p< 0.01) and Nrf2 (p < 0.001) significantly increased whereas the mean level of IL-6 (p < 0.01), TNF-α (p < 0.001), MDA (p < 0.001), Bax (p < 0.001) gene expression significantly decreased compared to the DM group. Our results showed that empagliflozin, by improving the antioxidant defense system, can reduce testicular inflammation and apoptosis and partly prevent the adverse effects of diabetes mellitus on testicular tissue.
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Affiliation(s)
- Mina Kiani
- Department of Biology, Faculty of Science, Arak University, Arak 3815688138, Iran
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Zhang B, Liu P, Sheng H, Guo Y, Han Y, Suo L, Yuan Q. New Insight into the Potential Protective Function of Sulforaphene against ROS-Mediated Oxidative Stress Damage In Vitro and In Vivo. Int J Mol Sci 2023; 24:13129. [PMID: 37685936 PMCID: PMC10487408 DOI: 10.3390/ijms241713129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2023] [Revised: 08/17/2023] [Accepted: 08/18/2023] [Indexed: 09/10/2023] Open
Abstract
Sulforaphene (SFE) is a kind of isothiocyanate isolated from radish seeds that can prevent free-radical-induced diseases. In this study, we investigated the protective effect of SFE on oxidative-stress-induced damage and its molecular mechanism in vitro and in vivo. The results of cell experiments show that SFE can alleviate D-gal-induced cytotoxicity, promote cell cycle transformation by inhibiting the production of reactive oxygen species (ROS) and cell apoptosis, and show a protective effect on cells with H2O2-induced oxidative damage. Furthermore, the results of mice experiments show that SFE can alleviate D-galactose-induced kidney damage by inhibiting ROS, malondialdehyde (MDA), and 4-hydroxyalkenals (4-HNE) production; protect the kidney against oxidative stress-induced damage by increasing antioxidant enzyme activity and upregulating the Nrf2 signaling pathway; and inhibit the activity of pro-inflammatory factors by downregulating the expression of Toll-like receptor 4 (TLR4)-mediated inflammatory response. In conclusion, this research shows that SFE has antioxidant effects, providing a new perspective for studying the anti-aging properties of natural compounds.
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Affiliation(s)
| | | | | | | | | | | | - Qipeng Yuan
- State Key Laboratory of Chemical Resource Engineering, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, China; (B.Z.); (P.L.); (H.S.); (Y.G.); (Y.H.); (L.S.)
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3
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Monageng E, Offor U, Takalani NB, Mohlala K, Opuwari CS. A Review on the Impact of Oxidative Stress and Medicinal Plants on Leydig Cells. Antioxidants (Basel) 2023; 12:1559. [PMID: 37627554 PMCID: PMC10451682 DOI: 10.3390/antiox12081559] [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: 06/08/2023] [Revised: 07/03/2023] [Accepted: 08/02/2023] [Indexed: 08/27/2023] Open
Abstract
Leydig cells are essential for steroidogenesis and spermatogenesis. An imbalance in the production of reactive oxygen species (ROS) and the cellular antioxidant level brings about oxidative stress. Oxidative stress (OS) results in the dysfunction of Leydig cells, thereby impairing steroidogenesis, spermatogenesis, and ultimately, male infertility. To prevent Leydig cells from oxidative insults, there needs to be a balance between the ROS production and the cellular protective capacity of antioxidants. Evidence indicates that medicinal plants could improve Leydig cell function at specific concentrations under basal or OS conditions. The increased usage of medicinal plants has been considered a possible alternative treatment for male infertility. This review aims to provide an overview of the impact of oxidative stress on Leydig cells as well as the effects of various medicinal plant extracts on TM3 Leydig cells. The medicinal plants of interest include Aspalathus linearis, Camellia sinensis, Moringa oleifera, Morinda officinale, Taraxacum officinale, Trichilia emetica, Terminalia sambesiaca, Peltophorum africanum, Ximenia caffra, Serenoa repens, Zingiber officinale, Eugenia jambolana, and a combination of dandelion and fermented rooibos (CRS-10). According to the findings obtained from studies conducted on the evaluated medicinal plants, it can, therefore, be concluded that the medicinal plants maintain the antioxidant profile of Leydig cells under basal conditions and have protective or restorative effects following exposure to oxidative stress. The available data suggest that the protective role exhibited by the evaluated plants may be attributed to their antioxidant content. Additionally, the use of the optimal dosage or concentration of the extracts in the management of oxidative stress is of the utmost importance, and the measurement of their oxidation reduction potential is recommended.
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Affiliation(s)
- Elizabeth Monageng
- Department of Medical Biosciences, Faculty of Natural Science, University of Western Cape, Cape Town 7535, South Africa
| | - Ugochukwu Offor
- School of Anatomical Sciences, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg 2193, South Africa
| | - Ndivhuho Beauty Takalani
- Department of Medical Biosciences, Faculty of Natural Science, University of Western Cape, Cape Town 7535, South Africa
| | - Kutullo Mohlala
- Department of Medical Biosciences, Faculty of Natural Science, University of Western Cape, Cape Town 7535, South Africa
| | - Chinyerum Sylvia Opuwari
- Department of Medical Biosciences, Faculty of Natural Science, University of Western Cape, Cape Town 7535, South Africa
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Zhao YC, Wang CC, Yang JY, Li XY, Yanagita T, Xue CH, Zhang TT, Wang YM. N-3 PUFA Deficiency from Early Life to Adulthood Exacerbated Susceptibility to Reactive Oxygen Species-Induced Testicular Dysfunction in Adult Mice. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:6908-6919. [PMID: 37098125 DOI: 10.1021/acs.jafc.2c07328] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Homeostasis of reactive oxygen species is required to maintain sperm maturation and capacitation. Docosahexaenoic acid (DHA) is accumulated in testicles and spermatozoa and has the ability to manipulate the redox status. The effects of dietary n-3 polyunsaturated fatty acid (n-3 PUFA) deficiency from early life to adulthood on the physiological and functional properties of males under the redox imbalance of testicular tissue deserve attention. The consecutive injection of hydrogen peroxide (H2O2) and tert-butyl hydroperoxide (t-BHP) for 15 days to induce oxidative stress in testicular tissue was used to elucidate the consequences of testicular n-3 PUFA deficiency. The results indicated that reactive oxygen species treatment in adult male mice with DHA deficiency in the testis could reduce spermatogenesis and disrupt sex hormone production, as well as trigger testicular lipid peroxidation and tissue damage. N-3 PUFA deficiency from early life to adulthood resulted in higher susceptibility to testicular dysfunction in the germinal function of supplying germ cells and the endocrine role of secreting hormones through the mechanism of aggravating mitochondria-mediated apoptosis and destruction of blood testicular barrier under oxidative stress, which might provide a basis for humans to reduce susceptibility to chronic disease and maintain reproductive health in adulthood through dietary interventions of n-3 PUFAs.
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Affiliation(s)
- Ying-Cai Zhao
- College of Food Science and Engineering, Ocean University of China, Qingdao 266003, Shandong, P. R. China
| | - Cheng-Cheng Wang
- College of Food Science and Engineering, Ocean University of China, Qingdao 266003, Shandong, P. R. China
| | - Jin-Yue Yang
- College of Food Science and Engineering, Ocean University of China, Qingdao 266003, Shandong, P. R. China
| | - Xiao-Yue Li
- College of Food Science and Engineering, Ocean University of China, Qingdao 266003, Shandong, P. R. China
| | - Teruyoshi Yanagita
- Laboratory of Nutrition Biochemistry, Department of Applied Biochemistry and Food Science, Saga University, Saga 840-8502, Japan
| | - Chang-Hu Xue
- College of Food Science and Engineering, Ocean University of China, Qingdao 266003, Shandong, P. R. China
- Laboratory for Marine Drugs and Bioproducts, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266237 Shandong Province, P. R. China
| | - Tian-Tian Zhang
- College of Food Science and Engineering, Ocean University of China, Qingdao 266003, Shandong, P. R. China
| | - Yu-Ming Wang
- College of Food Science and Engineering, Ocean University of China, Qingdao 266003, Shandong, P. R. China
- Laboratory for Marine Drugs and Bioproducts, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266237 Shandong Province, P. R. China
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Sharma P, Kaushal N, Saleth LR, Ghavami S, Dhingra S, Kaur P. Oxidative stress-induced apoptosis and autophagy: Balancing the contrary forces in spermatogenesis. Biochim Biophys Acta Mol Basis Dis 2023; 1869:166742. [PMID: 37146914 DOI: 10.1016/j.bbadis.2023.166742] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Revised: 04/18/2023] [Accepted: 04/27/2023] [Indexed: 05/07/2023]
Abstract
Spermatogenesis is a complex process in the testis and is a cornerstone of male infertility. The abundance of unsaturated fatty acid and high cell division rate make male germs cells prone to DNA deterioration. ROS-mediated oxidative stress triggers DNA damage, autophagy, and apoptosis in male germ cells, which are critical causative factors that lead to male infertility. The complex connection and molecular crosstalk between apoptosis and autophagy is seen at multifaceted levels that interconnect the signaling pathways of these two processes. Multilevel interaction between apoptosis and autophagy is a seamless state of survival and death in response to various stressors. Interaction between multiple genes and proteins such as the mTor signaling pathway, Atg12 proteins, and the death adapter proteins, such as Beclin 1, p53, and Bcl-2 family proteins, validates such a link between these two phenomena. Testicular cells being epigenetically different from somatic cells, undergo numerous significant epigenetic transitions, and ROS modulates the epigenetic framework of mature sperm. Epigenetic deregulation of apoptosis and autophagy under oxidative stress conditions can cause sperm cell damage. The current review recapitulates the current role of prevailing stressors that generate oxidative stress leading to the induction of apoptosis and autophagy in the male reproductive system. Considering the pathophysiological consequences of ROS-mediated apoptosis and autophagy, a combinatorial approach, including apoptosis inhibition and autophagy activation, a therapeutic strategy to treat male idiopathic infertility. Understanding the crosslink between apoptosis and autophagy under stress conditions in male germ cells may play an essential role in developing therapeutic strategies to treat infertility.
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Affiliation(s)
- Parul Sharma
- Department of Biotechnology, Thapar Institute of Engineering & Technology, Patiala, Punjab 147004, India
| | - Naveen Kaushal
- Department of Biophysics, Panjab University, Chandigarh 160014, India
| | - Leena Regi Saleth
- Institute of Cardiovascular Sciences, St. Boniface Hospital Albrechtsen Research Centre, Department of Physiology and Pathophysiology, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba R2H 2A6, Canada
| | - Saeid Ghavami
- Department of Human Anatomy and Cell Science, Rady Faculty of Health Sciences, Max Rady College of Medicine, University of Manitoba, Winnipeg, Manitoba, Canada; Research Institute of Hematology and Oncology, Cancer Care Manitoba, Winnipeg, MB R3E 0V9, Canada; Faculty of Medicine in Zabrze, University of Technology in Katowice, Academia of Silesia, 41-800 Zabrze, Poland
| | - Sanjiv Dhingra
- Institute of Cardiovascular Sciences, St. Boniface Hospital Albrechtsen Research Centre, Department of Physiology and Pathophysiology, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba R2H 2A6, Canada
| | - Parminder Kaur
- Department of Biotechnology, University Institute of Engineering & Technology, Panjab University, Chandigarh 160024, India.
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Xu H, Liu Y. ROS-responsive nanomodulators downregulate IFITM3 expression and eliminate ROS for Alzheimer's disease combination treatment. J Colloid Interface Sci 2023; 645:210-218. [PMID: 37149995 DOI: 10.1016/j.jcis.2023.04.139] [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: 02/06/2023] [Revised: 04/06/2023] [Accepted: 04/26/2023] [Indexed: 05/09/2023]
Abstract
Neuronal damage caused by β-amyloid (Aβ) aggregates and excess reactive oxygen species (ROS) is a crucial pathogenic event in Alzheimer's disease (AD). However, current Aβ-targeting RNA interference (RNAi) treatments have shown limited therapeutic efficacy due to ineffective intracerebral siRNA delivery and overlooked crosstalk between excess ROS and Aβ aggregates in the brain. Herein, a ROS-responsive nanomodulator (NM/CM) was developed for the combinational treatment of RNAi and ROS elimination for AD. NM/CM was coated with 4T1 cell membranes, which endowed NM/CM with the capability to cross blood-brain barrier (BBB). After being internalized by neural cells, NM/CM releases curcumin (Cur) and siIFITM3 spontaneously into the cytoplasm. The released Cur can eliminate ROS, protecting neurons from oxidative damage and reducing the production of Aβ induced by ROS-related neuroinflammation. The released siIFITM3 can downregulate the expression of interferon-induced transmembrane protein 3 (IFITM3), thereby reducing the abnormal Aβ production mediated by IFITM3. As a result, NM/CM remarkably alleviated ROS- and Aβ aggregate-induced neurotoxicity in vitro, showing significant neuroprotective effects. This work demonstrates the potential of NM/CM in the development of novel and effective AD combination therapies.
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Affiliation(s)
- Huaibao Xu
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Functional Polymer Materials of Ministry of Education, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Yang Liu
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Functional Polymer Materials of Ministry of Education, College of Chemistry, Nankai University, Tianjin 300071, China.
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Abdulla JM, Al-Okaily BN. Histomorphometric and Histopathological Alterations of Rat Testis Following Exposure to Hydrogen Peroxide: Protective Role of Resveratrol Supplement. THE IRAQI JOURNAL OF VETERINARY MEDICINE 2022. [DOI: 10.30539/ijvm.v46i1.1313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
Resveratrol (RS) is widely used in medical fields as an antioxidant. Current research investigated the protective role of RS supplement on histomorphometric and histopathological alterations in testes were caused by hydrogen peroxide (H2O2) of rats as an animal model. Thirty-two adult rats were utilized in this study, divided randomly into 4 equal groups as follows. The group C was given tap water only and served as control, the 2nd group (G1) was given 0.5% of H2O2 of tap water, the 3rd group (G2) was given tap water containing 0.5% of H2O2 and intubated RS supplement at 87 mg/kg BW, and 4th group intubated RS supplement 87 mg/kg BW. after 56 days of treatment, rats were euthanized, dissected then, specimens of testes tissue were collected for histomorphometric and histopathological evaluation. Our results showed that administration of H2O2 caused a significant histomorphometric with histopathological changes in the form of a thickness of fibrous tunica albuginea, disarrangement of germ cells, necrosis of spermatogonia, edema, and loss of sperms as compared to other groups. Meanwhile, these histological alterations were partially attenuated in the G2 group that intubated resveratrol. Thus, the current study concluded that resveratrol may have therapeutic value in the treatment of induced testicular injury by H2O2 due to its antioxidant activity and attenuation of harmful effects of oxidative stress through a mechanism that should be elucidated in future studies.
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Sağraç D, Şenkal S, Hayal TB, Demirci S, Şişli HB, Asutay AB, Doğan A. Protective role of Cytoglobin and Neuroglobin against the Lipopolysaccharide (LPS)-induced inflammation in Leydig cells ex vivo. Reprod Biol 2022; 22:100595. [PMID: 35121559 DOI: 10.1016/j.repbio.2021.100595] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2021] [Revised: 11/21/2021] [Accepted: 12/10/2021] [Indexed: 12/28/2022]
Abstract
Leydig cells are responsible for testosterone production in male testis upon stimulation by luteinizing hormone. Inflammation and oxidative stress related Leydig cell dysfunction is one of the major causes of male infertility. Cytoglobin (CYGB) and Neuroglobin (NGB) are two globin family member proteins which protect cells against oxidative stress. In the current study, we established a Lipopolysaccharide (LPS)-induced inflammation model in TM3 Leydig cell culture to study the function of CYGB and NGB proteins under inflammatory conditions. CYGB and NGB were downregulated using siRNA and shRNA based experimental strategies. Overexpression was conducted using lentiviral pLenti-III-CYGB-2A-GFP, and pLenti-III-NGB-2A-GFP vector systems. As testicular macrophages regulate immune function upon inflammation and steroidogenesis of Leydig cells, we generated direct/indirect co-culture systems of TM3 and mouse macrophage (RAW264.7) cells ex vivo. Downregulation of CYGB and NGB induced nitride oxide (NO) release, blocked cell cycle progression, reduced testosterone production and increased inflammatory and apoptotic pathway gene expression in the presence and absence of LPS. On the other hand, CYGB and NGB overexpression reduced TNFα and COX-2 protein expressions and increased the expression of testosterone biogenesis pathway genes upon LPS stimulation. In addition, CYGB and NGB overexpression upregulated testosterone production. The present study successfully established an inflammatory interaction model of TM3 and RAW264.7 cells. Suppression of CYGB and NGB in TM3 cells changed macrophage morphology, enhanced macrophage cell number and NO release in co-culture experiments upon LPS exposure. In summary, these results demonstrate that globin family members might control LPS induced inflammation by regulating apoptotic mechanisms and macrophage response.
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Affiliation(s)
- Derya Sağraç
- Department of Genetics and Bioengineering, Faculty of Engineering, Yeditepe University, Istanbul, Turkey
| | - Selinay Şenkal
- Department of Genetics and Bioengineering, Faculty of Engineering, Yeditepe University, Istanbul, Turkey
| | - Taha Bartu Hayal
- Department of Genetics and Bioengineering, Faculty of Engineering, Yeditepe University, Istanbul, Turkey
| | - Selami Demirci
- Cellular and Molecular Therapeutics Branch, National Heart, Lung, and Blood Institute (NHLBI)/National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), National Institutes of Health (NIH), Bethesda, MD, USA
| | - Hatice Burcu Şişli
- Department of Genetics and Bioengineering, Faculty of Engineering, Yeditepe University, Istanbul, Turkey
| | - Ayla Burçin Asutay
- Department of Genetics and Bioengineering, Faculty of Engineering, Yeditepe University, Istanbul, Turkey
| | - Ayşegül Doğan
- Department of Genetics and Bioengineering, Faculty of Engineering, Yeditepe University, Istanbul, Turkey.
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Dziendzikowska K, Wilczak J, Grodzicki W, Gromadzka-Ostrowska J, Węsierska M, Kruszewski M. Coating-Dependent Neurotoxicity of Silver Nanoparticles-An In Vivo Study on Hippocampal Oxidative Stress and Neurosteroids. Int J Mol Sci 2022; 23:1365. [PMID: 35163290 PMCID: PMC8835951 DOI: 10.3390/ijms23031365] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 01/20/2022] [Accepted: 01/22/2022] [Indexed: 12/04/2022] Open
Abstract
Silver nanoparticles (AgNPs) are one of the most widely used nanomaterials. The level of exposure to nanosilver is constantly raising, and a growing body of research highlights that it is harmful to the health, especially the nervous system, of humans. The potential pathways through which nanosilver affects neurons include the release of silver ions and the associated induction of oxidative stress. To better understand the mechanisms underlying the neurotoxicity of nanosilver, in this study we exposed male Wistar rats to 0.5 mg/kg body weight of AgNPs coated with bovine serum albumin (BSA), polyethylene glycol (PEG), or citrate, or to AgNO3 as a source of silver ions for 28 days and assessed the expression of antioxidant defense markers in the hippocampus of the exposed animals after 1 week of spatial memory training. We also evaluated the influence of AgNPs coating on neurosteroidogenesis in the rat hippocampus. The results showed that AgNPs disrupted the antioxidant system in the hippocampus and induced oxidative stress in a coating-dependent manner, which could potentially be responsible for neurodegeneration and cognitive disorders. The analysis of the influence of AgNPs on neurosteroids also indicated coating-dependent modulation of steroid levels with a significant decrease in the concentrations of progesterone and 17α-progesterone in AgNPs(BSA), AgNPs(PEG), and Ag+ groups. Furthermore, exposure to AgNPs or Ag+ resulted in the downregulation of selected genes involved in antioxidant defense (Cat), neurosteroid synthesis (Star, Hsd3b3, Hsd17b1, and Hsd17b10), and steroid metabolism (Ar, Er1, and Er2). In conclusion, depending on the coating material used for their stabilization, AgNPs induced oxidative stress and modulated the concentrations of steroids as well as the expression of genes involved in steroid synthesis and metabolism.
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Affiliation(s)
- Katarzyna Dziendzikowska
- Department of Dietetics, Institute of Human Nutrition Sciences, Warsaw University of Life Sciences—SGGW, Nowoursynowska 159C, 02-776 Warsaw, Poland; (W.G.); (J.G.-O.)
| | - Jacek Wilczak
- Department of Physiological Sciences, Institute of Veterinary Medicine, Warsaw University of Life Sciences, Nowoursynowska 159, 02-776 Warsaw, Poland;
| | - Wojciech Grodzicki
- Department of Dietetics, Institute of Human Nutrition Sciences, Warsaw University of Life Sciences—SGGW, Nowoursynowska 159C, 02-776 Warsaw, Poland; (W.G.); (J.G.-O.)
| | - Joanna Gromadzka-Ostrowska
- Department of Dietetics, Institute of Human Nutrition Sciences, Warsaw University of Life Sciences—SGGW, Nowoursynowska 159C, 02-776 Warsaw, Poland; (W.G.); (J.G.-O.)
| | - Małgorzata Węsierska
- Laboratory of Neuropsychology, Nencki Institute of Experimental Biology, Polish Academy of Sciences, 3 Pasteur Street, 02-093 Warsaw, Poland;
| | - Marcin Kruszewski
- Centre for Radiobiology and Biological Dosimetry, Institute of Nuclear Chemistry and Technology, Dorodna 16, 03-195 Warsaw, Poland;
- Department of Molecular Biology and Translational Research, Institute of Rural Health, Jaczewskiego 2, 20-090 Lublin, Poland
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Leisegang K, Roychoudhury S, Slama P, Finelli R. The Mechanisms and Management of Age-Related Oxidative Stress in Male Hypogonadism Associated with Non-communicable Chronic Disease. Antioxidants (Basel) 2021; 10:1834. [PMID: 34829704 PMCID: PMC8615233 DOI: 10.3390/antiox10111834] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Revised: 11/15/2021] [Accepted: 11/16/2021] [Indexed: 12/24/2022] Open
Abstract
Androgens have diverse functions in muscle physiology, lean body mass, the regulation of adipose tissue, bone density, neurocognitive regulation, and spermatogenesis, the male reproductive and sexual function. Male hypogonadism, characterized by reduced testosterone, is commonly seen in ageing males, and has a complex relationship as a risk factor and a comorbidity in age-related noncommunicable chronic diseases (NCDs), such as obesity, metabolic syndrome, type 2 diabetes, and malignancy. Oxidative stress, as a significant contributor to the ageing process, is a common feature between ageing and NCDs, and the related comorbidities, including hypertension, dyslipidemia, hyperglycemia, hyperinsulinemia, and chronic inflammation. Oxidative stress may also be a mediator of hypogonadism in males. Consequently, the management of oxidative stress may represent a novel therapeutic approach in this context. Therefore, this narrative review aims to discuss the mechanisms of age-related oxidative stress in male hypogonadism associated with NCDs and discusses current and potential approaches for the clinical management of these patients, which may include conventional hormone replacement therapy, nutrition and lifestyle changes, adherence to the optimal body mass index, and dietary antioxidant supplementation and/or phytomedicines.
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Affiliation(s)
- Kristian Leisegang
- School of Natural Medicine, Faculty of Community and Health Sciences, Bellville, Cape Town 7535, South Africa
| | | | - Petr Slama
- Department of Animal Morphology, Physiology and Genetics, Faculty of AgriSciences, Mendel University in Brno, 61300 Brno, Czech Republic
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Lotfi F, Ziamajidi N, Abbasalipourkabir R, Goodarzi MT, Asl SS. Impacts of garlic extract on testicular oxidative stress and sperm characteristics in type 1 and 2 diabetic rats: An experimental study. Int J Reprod Biomed 2021; 19:929-942. [PMID: 34805733 PMCID: PMC8595912 DOI: 10.18502/ijrm.v19i10.9825] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2020] [Revised: 11/28/2020] [Accepted: 02/13/2021] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND Hyperglycemia damages various tissues such as the testes through oxidative stress and inflammation, which can eventually lead to infertility. OBJECTIVE Garlic extract effects on the testicular tissue of diabetic rats were investigated. MATERIALS AND METHODS In this experimental study, 36 male Wistar rats (8-wk old, weighing 230-300 gr) were randomly divided into 6 groups (n = 6/each) including; C: control rats, G: received 0.4 gr of garlic extract/100 gr body weight, D1: Streptozotocin-induced-diabetic rats or type 1, D1+G: D1 rats that were treated with garlic, D2: Streptozotocin + nicotinamide-induced-diabetic rats or type 2, D2+G: D2 rats treated with garlic. At the end of the study, serum testosterone was assayed by ELISA. Also, sperm quality and quantity were evaluated. For determination of oxidative stress status, total antioxidant capacity, total oxidative status, lipid peroxidation, and thiol groups were assayed in the testis tissues of the rats by colorimetric methods. Also, inducible nitric oxide synthase (iNOS) gene expression and the protein level of interleukin-1 β (IL-1 β ) were determined by quantitative real-time polymerase chain reaction and enzyme-linked immunosorbent assay, respectively. RESULTS In diabetic rats, glucose, total oxidative status and lipid peroxidation, iNOS gene expression, and IL-1 β were higher than in non-diabetic rats, whereas testosterone, total antioxidant capacity and thiol groups, and sperm quality were significantly lower compared with control rats. These alterations were normalized by garlic intervention. CONCLUSION In diabetic rats, garlic was associated with reduced glucose, oxidative stress, IL-1 β , and iNOS gene expression and increased testosterone and sperm quality. So, the results suggest that garlic can reduce the severity of damage in testicular tissues of diabetic rats through its hypoglycemic, antioxidant, and anti-inflammatory properties.
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Affiliation(s)
- Fatemeh Lotfi
- Department of Clinical Biochemistry, School of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
- Molecular Medicine Research Center, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Nasrin Ziamajidi
- Department of Clinical Biochemistry, School of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
- Molecular Medicine Research Center, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Roghayeh Abbasalipourkabir
- Department of Clinical Biochemistry, School of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Mohammad Taghi Goodarzi
- Molecular Medicine Research Center, Hamadan University of Medical Sciences, Hamadan, Iran
- Department of Biochemistry, Shahrood Branch, Islamic Azad University, Shahrood, Iran
| | - Sara Soleimani Asl
- Department of Anatomy, School of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
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Liu Y, Liu Y, Wang J, Huang F, Du P, Wu L, Guo F, Song Y, Qin G. LncRNA FENDRR promotes apoptosis of Leydig cells in late-onset hypogonadism by facilitating the degradation of Nrf2. Cell Tissue Res 2021; 386:379-389. [PMID: 34278519 DOI: 10.1007/s00441-021-03497-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Accepted: 06/23/2021] [Indexed: 12/23/2022]
Abstract
This study aimed to investigate the role of lncRNA FENDRR in apoptosis of Leydig cells and the further mechanism. The apoptosis of Leydig cells (TM3 cell line) was induced by H2O2-treatment and detected by flow cytometry. The function of FENDRR was determined by in vitro and in vivo silencing experiments. The mechanism of FENDRR in regulating the expression of nuclear factor erythroid 2-related factor 2 (Nrf2) was assessed by RNA immunoprecipitation, RNA pull-down, and ubiquitination assays. FENDRR expression was up-regulated in H2O2-treated TM3 cells. Knockdown of FENDRR augmented Nrf2 and HO-1 protein levels and testosterone production in H2O2-treated TM3 cells, whereas the apoptosis rate and caspase 3 activity were decreased. Mechanically, FENDRR bound to Nrf2 and promoted its ubiquitination and degradation. Nrf2 overexpression reversed the effects FENDRR overexpression on apoptosis, caspase 3 activity, and testosterone concentration in H2O2-treated TM3 cells. The in vivo experiments showed that FENDRR silence increased serum testosterone level and improved testosterone-related anti-depression behaviors of late-onset hypogonadism (LOH) mice. Our findings suggested that FENDRR could promote apoptosis of Leydig cells in LOH partly through facilitating Nrf2 degradation.
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Affiliation(s)
- Yanling Liu
- Department of Endocrinology and Metabolism, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan, China
| | - Yanxia Liu
- Department of Endocrinology and Metabolism, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan, China
| | - Jiao Wang
- Department of Endocrinology and Metabolism, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan, China
| | - Fengjiao Huang
- Department of Endocrinology and Metabolism, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan, China
| | - Peijie Du
- Department of Endocrinology and Metabolism, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan, China
| | - Lina Wu
- Department of Endocrinology and Metabolism, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan, China
| | - Feng Guo
- Department of Endocrinology and Metabolism, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan, China
| | - Yi Song
- Department of Endocrinology and Metabolism, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan, China
| | - Guijun Qin
- Department of Endocrinology and Metabolism, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan, China.
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Liu J, Zhu T, Niu Q, Yang X, Suo H, Zhang H. Dendrobium nobile Alkaloids Protects against H 2O 2-Induced Neuronal Injury by Suppressing JAK-STATs Pathway Activation in N2A Cells. Biol Pharm Bull 2020; 43:716-724. [PMID: 32238714 DOI: 10.1248/bpb.b19-01083] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The purpose of this study was to investigate the preventive effect and mechanism of Dendrobium alkaloids (DNLA) on oxidative stress-related death in neuronal cells. Our results demonstrated that DNLA has a direct neuroprotective effect through oxidative stress in N2A cells induced by hydrogen peroxide (H2O2). CCK8, lactate dehydrogenase (LDH), intracellular Ca2+, intracellular reactive oxygen species (ROS), and mitochondrial membrane potential (MMP) were used to evaluate the mechanism of DNLA neutralization by H2O2-induced injury. Results presented in the paper indicate that treatment with DNLA (35 ng/mL) significantly attenuated decreases in cell viability, release of LDH, and apoptosis after H2O2-induced neuronal injury. Furthermore, DNLA significantly reduced intracellular Ca2+ up-regulation, ROS production, and inhibited mitochondrial depolarization. Moreover, DNLA treatment significantly downregulated expressions of interleukin (IL)-1β, tumor necrosis factor (TNF)-α, IL-6, nitric oxide synthase, janus kinase-signal transducer and activators of transcription (JAK-STATs) signaling in N2A cells, all of which were H2O2-induced. Taken together, our findings suggested that DNLA may inhibit the expression of pro-inflammatory and pro-apoptotic factors by blocking JAK-STATs signaling after oxidative stress injury. This research provides a potential experimental basis for further application of DNLA to prevent various human nervous system diseases caused by oxidative stress.
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Affiliation(s)
- Jing Liu
- School of Life Science and Bioengineering, Henan University of Urban Construction
| | - Tao Zhu
- School of Life Science and Bioengineering, Henan University of Urban Construction
| | - Qingqing Niu
- School of Life Science and Bioengineering, Henan University of Urban Construction
| | - Xiaoxing Yang
- School of Life Science and Bioengineering, Henan University of Urban Construction
| | - Hao Suo
- School of Life Science and Bioengineering, Henan University of Urban Construction
| | - Hao Zhang
- School of Life Science and Bioengineering, Henan University of Urban Construction.,Institute of Biomedical and Pharmaceutical sciences, Guangdong University of Technology
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Chlorogenic acid abates male reproductive dysfunction in arsenic-exposed mice via attenuation of testicular oxido-inflammatory stress and apoptotic responses. Chem Biol Interact 2020; 333:109333. [PMID: 33242462 DOI: 10.1016/j.cbi.2020.109333] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Revised: 11/05/2020] [Accepted: 11/20/2020] [Indexed: 12/14/2022]
Abstract
Arsenic, a major environmental pollutant of global concern, is well-known for its reproductive toxicity. In this study, the protective potential of chlorogenic acid (CGA), a caffeoylquinic acid isomer abundantly found in many plants, was investigated against sodium arsenite (NaAsO2)-induced testicular dysfunctions. Adult male Swiss mice were either administered NaAsO2 alone at 5 mg kg-1 or co-treated with CGA at 100 mg kg-1 or 200 mg kg-1 body weight for 4 weeks. Results showed that NaAsO2-treated mice exhibited marked declines in testes weight, sperm count, and viability accompanied by decreases in sexual hormonal levels. Moreover, NaAsO2 toxicity evoked exhaustion of antioxidant markers (SOD, CAT, GPx, GR, and GSH), down-regulation of Nrf2 (nuclear factor erythroid 2-related factor 2) gene expression level, and elevations in malondialdehyde. Further, elevations in inflammatory cytokines (IL-1, TNF-α, and IL-6) together with the up-regulation of pro-apoptotic biomarkers (Bax and caspase- 3) and down-regulation of anti-apoptotic Bcl-2 were observed in NaAsO2 intoxication. Immunohistochemical analysis of testis sections of NaAsO2-treated mice showed high caspase-3 expression. These findings were well supported with testicular histopathological examination. However, pretreatment of mice with CGA resulted in noteworthy improvements in testicular damage induced by arsenic in a dose-dependent manner possibly mediated by the Nrf2 signaling pathway. Conclusively, CGA counteracted arsenic-induced testicular injury through its antioxidant, anti-inflammatory, and anti-apoptotic properties. Therefore, CGA could serve as a favorable intervention in the alleviation of arsenic-induced reproductive toxicity.
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Wu H, Xiao K, Ouyang T, Wang Z, Chen Y, Li N, Liu ZQ. Co-Cr mixed spinel oxide nanodots anchored on nitrogen-doped carbon nanotubes as catalytic electrode for hydrogen peroxide sensing. J Colloid Interface Sci 2020; 585:605-613. [PMID: 33139019 DOI: 10.1016/j.jcis.2020.10.040] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Revised: 10/11/2020] [Accepted: 10/12/2020] [Indexed: 02/07/2023]
Abstract
Hydrogen peroxide (H2O2) is a significant biomarker in physiological processes. Abnormal levels of H2O2 are considered to be closely related to some acute diseases. Therefore, it is important to monitor the H2O2 levels in bio-samples. Herein, we present a novel non-enzymatic electrochemical H2O2 sensor based on the excellent electrocatalytic performance of a composite comprising Zn-Cr-Co ternary spinel metal oxide nanodots (ZnCrCoO4) anchored on the surface of nitrogen-doped carbon nanotubes (NCNTs), denoted as ZnCrCoO4/NCNTs, toward H2O2 reduction. ZnCrCoO4/NCNTs were synthesized using a facile one-pot hydrothermal strategy. The enhanced electrocatalytic performance of ZnCrCoO4 is resulted from the partial substitution of Co in spinel zinc cobaltate (ZnCo2O4) with Cr, which modifies the CoO electronic structure and enhances electroconductivity. The ZnCrCoO4/NCNTs-based H2O2 sensor exhibited a wide quantitative detection range from 1 to 7330 μM with a detection limit of 1 μM. The sensor showed excellent reproducibility and selectivity for H2O2 sensing. In addition, remarkable recoveries were obtained for H2O2-spiked fish serum samples. These results demonstrated that the as-developed sensor has a great potential in monitoring H2O2 levels in practical applications.
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Affiliation(s)
- Huixiang Wu
- School of Chemistry and Chemical Engineering/Institute of Clean Energy and Materials/Guangzhou Key Laboratory for Clean Energy and Materials/Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou Higher Education Mega Center, No. 230 Wai Huan Xi Road, 510006, PR China
| | - Kang Xiao
- School of Chemistry and Chemical Engineering/Institute of Clean Energy and Materials/Guangzhou Key Laboratory for Clean Energy and Materials/Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou Higher Education Mega Center, No. 230 Wai Huan Xi Road, 510006, PR China
| | - Ting Ouyang
- School of Chemistry and Chemical Engineering/Institute of Clean Energy and Materials/Guangzhou Key Laboratory for Clean Energy and Materials/Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou Higher Education Mega Center, No. 230 Wai Huan Xi Road, 510006, PR China
| | - Zhu Wang
- School of Chemistry and Chemical Engineering/Institute of Clean Energy and Materials/Guangzhou Key Laboratory for Clean Energy and Materials/Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou Higher Education Mega Center, No. 230 Wai Huan Xi Road, 510006, PR China
| | - Yibo Chen
- School of Chemistry and Chemical Engineering/Institute of Clean Energy and Materials/Guangzhou Key Laboratory for Clean Energy and Materials/Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou Higher Education Mega Center, No. 230 Wai Huan Xi Road, 510006, PR China
| | - Nan Li
- School of Chemistry and Chemical Engineering/Institute of Clean Energy and Materials/Guangzhou Key Laboratory for Clean Energy and Materials/Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou Higher Education Mega Center, No. 230 Wai Huan Xi Road, 510006, PR China
| | - Zhao-Qing Liu
- School of Chemistry and Chemical Engineering/Institute of Clean Energy and Materials/Guangzhou Key Laboratory for Clean Energy and Materials/Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou Higher Education Mega Center, No. 230 Wai Huan Xi Road, 510006, PR China.
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Bryan ER, Kim J, Beagley KW, Carey AJ. Testicular inflammation and infertility: Could chlamydial infections be contributing? Am J Reprod Immunol 2020; 84:e13286. [DOI: 10.1111/aji.13286] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 06/05/2020] [Accepted: 06/05/2020] [Indexed: 12/12/2022] Open
Affiliation(s)
- Emily R. Bryan
- School of Biomedical Sciences Institute of Health and Biomedical Innovation Queensland University of Technology Brisbane Qld Australia
| | - Jay Kim
- School of Biomedical Sciences Institute of Health and Biomedical Innovation Queensland University of Technology Brisbane Qld Australia
| | - Kenneth W. Beagley
- School of Biomedical Sciences Institute of Health and Biomedical Innovation Queensland University of Technology Brisbane Qld Australia
| | - Alison J. Carey
- School of Biomedical Sciences Institute of Health and Biomedical Innovation Queensland University of Technology Brisbane Qld Australia
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Greifová H, Jambor T, Tokárová K, Speváková I, Knížatová N, Lukáč N. Resveratrol attenuates hydrogen peroxide-induced oxidative stress in TM3 Leydig cells in vitro. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART A, TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING 2020; 55:585-595. [PMID: 32178576 DOI: 10.1080/10934529.2020.1717899] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Revised: 01/06/2020] [Accepted: 01/10/2020] [Indexed: 06/10/2023]
Abstract
The objective of present study was to investigate in vitro protective potential of resveratrol in TM3 Leydig cells with induced oxidative stress using hydrogen peroxide (H2O2). Leydig cells experiencing oxidative stress exhibit reduced activities in androgens production, and become hypofunctional with age, which is also related to growing oxidative stress, while resveratrol has received growing attention as a cytoprotective agent. TM3 mouse Leydig cells were cultivated during 24 h in the presence of resveratrol (5, 10, 25, 50 and 100 μM) alone, or in combination with H2O2 (300/600 μM) to induce oxidative stress. Mitochondrial activity was evaluated using MTT test, triple assay was used in order to assess cell viability parameters, intracellular generation of superoxide was determined by the nitroblue-tetrazolium assay, and quantification of steroid hormones was performed by the enzyme- linked immunosorbent assay. Resveratrol alone treatment led to the most significantly improved values of all tested parameters in the cells of experimental group with addition of 10 μM of resveratrol in comparison to the control group. In the case of cells with induced oxidative stress (300 μM H2O2) resveratrol administration resulted in significantly increased (P < 0.05) metabolic activity, as well as cell membrane integrity at concentration 10 μM. Significantly improved (P < 0.001) lysosomal activity showed cells treated with 5 and 10 μM of resveratrol, and the level of both measured hormones was significantly higher (P < 0.05) in cells supplemented with 10 μM of resveratrol. Significant decline of superoxide radical production was observed in all experimental groups in comparison to the control exposed to H2O2 alone. With respect to cells exposed to higher concentration of H2O2 (600 μM), results showed positive effect of resveratrol only in biosynthesis of both androgens with significant increased values in experimental group treated with 5 μM (P < 0.05) and 10 μM (P < 0.01) of resveratrol, in addition, in the case of testosterone we recorded significant higher (P < 0.05) values in cells with addition of 25 and 50 μM resveratrol when compared to H2O2 control. More specific and systematic research focused especially on androgen biosynthesis is necessary related to the biological activity of resveratrol in male reproductive system due to inconsistent results of studies.
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Affiliation(s)
- Hana Greifová
- Department of Animal Physiology, Faculty of Biotechnology and Food Sciences, Slovak University of Agriculture in Nitra, Nitra, Slovak Republic
| | - Tomáš Jambor
- Department of Animal Physiology, Faculty of Biotechnology and Food Sciences, Slovak University of Agriculture in Nitra, Nitra, Slovak Republic
| | - Katarína Tokárová
- Department of Animal Physiology, Faculty of Biotechnology and Food Sciences, Slovak University of Agriculture in Nitra, Nitra, Slovak Republic
| | - Ivana Speváková
- Department of Animal Physiology, Faculty of Biotechnology and Food Sciences, Slovak University of Agriculture in Nitra, Nitra, Slovak Republic
| | - Nikola Knížatová
- Department of Animal Physiology, Faculty of Biotechnology and Food Sciences, Slovak University of Agriculture in Nitra, Nitra, Slovak Republic
| | - Norbert Lukáč
- Department of Animal Physiology, Faculty of Biotechnology and Food Sciences, Slovak University of Agriculture in Nitra, Nitra, Slovak Republic
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19
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Ballance WC, Qin EC, Chung HJ, Gillette MU, Kong H. Reactive oxygen species-responsive drug delivery systems for the treatment of neurodegenerative diseases. Biomaterials 2019; 217:119292. [PMID: 31279098 PMCID: PMC7081518 DOI: 10.1016/j.biomaterials.2019.119292] [Citation(s) in RCA: 84] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2019] [Revised: 06/17/2019] [Accepted: 06/18/2019] [Indexed: 12/18/2022]
Abstract
Neurodegenerative diseases and disorders seriously impact memory and cognition and can become life-threatening. Current medical techniques attempt to combat these detrimental effects mainly through the administration of neuromedicine. However, drug efficacy is limited by rapid dispersal of the drugs to off-target sites while the site of administration is prone to overdose. Many neuropathological conditions are accompanied by excessive reactive oxygen species (ROS) due to the inflammatory response. Accordingly, ROS-responsive drug delivery systems have emerged as a promising solution. To guide intelligent and comprehensive design of ROS-responsive drug delivery systems, this review article discusses the two following topics: (1) the biology of ROS in both healthy and diseased nervous systems and (2) recent developments in ROS-responsive, drug delivery system design. Overall, this review article would assist efforts to make better decisions about designing ROS-responsive, neural drug delivery systems, including the selection of ROS-responsive functional groups.
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Affiliation(s)
- William C Ballance
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| | - Ellen C Qin
- Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| | - Hee Jung Chung
- Department of Molecular and Integrative Physiology, University of Illinois at Urbana-Champaign, Urbana, IL, USA; Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, IL, USA; Neuroscience Program, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| | - Martha U Gillette
- Department of Molecular and Integrative Physiology, University of Illinois at Urbana-Champaign, Urbana, IL, USA; Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, IL, USA; Neuroscience Program, University of Illinois at Urbana-Champaign, Urbana, IL, USA; Department of Cell & Developmental Biology, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| | - Hyunjoon Kong
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, IL, USA; Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, IL, USA.
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20
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Detection of DNA Double-Strand Breaks Using Pulsed-Field Gel Electrophoresis. Methods Mol Biol 2019. [PMID: 31473967 DOI: 10.1007/978-1-4939-9646-9_16] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/29/2023]
Abstract
DNA is one of the most biologically important targets of exogenous and endogenous toxicants as well as carcinogens. Damage to DNA can be of different types (e.g., DNA adducts, DNA protein cross-links, single-strand breaks, oxidized bases, abasic sites, and double-strand breaks (DSBs)). DSBs are considered the most lethal form of DNA damage for eukaryotic cells, and if left unrepaired or misrepaired, can cause cell death, chromosome instability, and cancer. DSBs can arise in the cells through different sources and can be distinguished as endogenous or exogenous DSBs. Exogenous sources can be chemotherapeutic drugs, irradiation, and environmental chemicals. The endogenous causes of DNA DSBs in the cells are mainly reactive oxygen species and faulty repair of oxidative clustered DNA lesions. Qualitative and quantitative analysis of DNA DSBs is of utmost importance to understand physiologically relevant cellular processes as well as to investigate the genotoxic or clastogenic effects of toxicants. Pulsed-field gel electrophoresis (PFGE) is a widely used method for direct quantification of DNA DSBs. In this method, the cells exposed to DSB-inducing agents are embedded in the agarose blocks and lysed. These agarose blocks containing DNA are then run under multiple electric fields which are at 120° angle, to aid in the movement of large DNA strands. It gives a direct and specific measure of DSBs unlike the foci-based assays. This chapter provides a brief overview of the various commonly used approaches to analyze DNA DSBs and describes the theory, advantages and method of PFGE, for use in cells exposed to DNA DSB inducing agents.
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Xia T, Zhang B, Duan W, Li Y, Zhang J, Song J, Zheng Y, Wang M. Hepatoprotective efficacy of Shanxi aged vinegar extract against oxidative damage in vitro and in vivo. J Funct Foods 2019. [DOI: 10.1016/j.jff.2019.103448] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
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Elsawy H, Badr GM, Sedky A, Abdallah BM, Alzahrani AM, Abdel-Moneim AM. Rutin ameliorates carbon tetrachloride (CCl 4)-induced hepatorenal toxicity and hypogonadism in male rats. PeerJ 2019; 7:e7011. [PMID: 31179192 PMCID: PMC6545103 DOI: 10.7717/peerj.7011] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Accepted: 04/23/2019] [Indexed: 12/11/2022] Open
Abstract
Rutin, a food derived-polyphenolic bioflavonoid, has been acknowledged for several health benefits. This study aims to explore the ameliorative effects of rutin against carbon tetrachloride (CCl4) toxicity in male rats. Adult male rats were given either CCl4 (30% in olive oil, 3 ml/kg b.w. intraperitoneally) alone or in combination with rutin (70 mg/kg intragastrically) twice a week for 4 weeks. Our data showed that rutin mitigated CCl4 hepatorenal damage, as indicated by diagnostic markers (i.e., transaminases, alkaline phosphatase, total bilirubin, total protein, albumin, urea, uric acid and creatinine), and histopathological findings. In addition, CCl4 induced profound elevation of free radical generation and oxidative stress, as evidenced by increasing lipid peroxidation and reducing catalase, superoxide dismutase and glutathione peroxidase activities in liver, kidney and testicular tissues; these effects were suppressed by coexposure with rutin. Moreover, the increase in the levels of serum triglycerides, cholesterol, low-density lipoprotein cholesterol, and very-low-density lipoprotein cholesterol induced by CCl4 was effectively counteracted by rutin. The decrease in the level of high-density lipoprotein cholesterol in the CCl4 group was also counteracted by rutin treatment. Interestingly, the decreased levels of hormonal mediators associated with sperm production, including serum testosterone, luteinizing hormone and follicle-stimulating hormone, and the impaired sperm quality induced by CCl4 were reversed by rutin. Data from the current study clearly demonstrated that rutin supplementation could at least partly overcome CCl4-induced hepatotoxicity, nephrotoxicity and reproductive toxicity by antioxidant and antidyslipidemic effects.
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Affiliation(s)
- Hany Elsawy
- Department of Chemistry, Faculty of Science, King Faisal University, Al-Hofuf, Al-Ahsa, Saudi Arabia
- Department of Chemistry, Faculty of Science, Tanta University, Tanta, Egypt
| | - Gehan M. Badr
- Department of Biological Sciences, Faculty of Science, King Faisal University, Al-Hofuf, Al-Ahsa, Saudi Arabia
- Department of Zoology, Faculty of Science, Ain Shams University, Cairo, Egypt
| | - Azza Sedky
- Department of Biological Sciences, Faculty of Science, King Faisal University, Al-Hofuf, Al-Ahsa, Saudi Arabia
- Department of Zoology, Faculty of Science, Alexandria University, Alexandria, Egypt
| | - Basem M. Abdallah
- Department of Biological Sciences, Faculty of Science, King Faisal University, Al-Hofuf, Al-Ahsa, Saudi Arabia
- Endocrine Research (KMEB), Department of Endocrinology, Odense University Hospital and University of Southern Denmark, Odense, Denmark
| | - Abdullah M. Alzahrani
- Department of Biological Sciences, Faculty of Science, King Faisal University, Al-Hofuf, Al-Ahsa, Saudi Arabia
| | - Ashraf M. Abdel-Moneim
- Department of Biological Sciences, Faculty of Science, King Faisal University, Al-Hofuf, Al-Ahsa, Saudi Arabia
- Department of Zoology, Faculty of Science, Alexandria University, Alexandria, Egypt
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Mei L, Zhang X, Yin W, Dong X, Guo Z, Fu W, Su C, Gu Z, Zhao Y. Translocation, biotransformation-related degradation, and toxicity assessment of polyvinylpyrrolidone-modified 2H-phase nano-MoS 2. NANOSCALE 2019; 11:4767-4780. [PMID: 30816394 DOI: 10.1039/c8nr10319d] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Nano-MoS2 has been extensively investigated in materials science and biomedicine. However, the effects of different methods of exposure on their translocation, biosafety, and biotransformation-related degradability remain unclear. In this study, we combined the advantages of synchrotron radiation (SR) X-ray absorption near-edge structure (XANES) and high-resolution single-cell SR transmission X-ray microscopy (SR-TXM) with traditional analytical techniques to investigate translocation, precise degraded species/ratio, and correlation between the degradation and toxicity levels of polyvinylpyrrolidone-modified 2H-phase MoS2 nanosheets (MoS2-PVP NSs). These NSs demonstrated different biodegradability levels in biomicroenvironments with H2O2, catalase, and human myeloperoxidase (hMPO) (H2O2 < catalase < hMPO). The effects of NSs and their biodegraded byproducts on cell viability and 3D translocation at the single-cell level were also assessed. Toxicity and translocation in mice via intravenous (i.v.), intraperitoneal (i.p.), and intragastric (i.g.) administration routes guided by fluorescence (FL) imaging were investigated within the tested dosage. After i.g. administration, NSs accumulated in the gastrointestinal organs and were excreted from feces within 48 h. After i.v. injection, NSs showed noticeable clearance due to their decreased accumulation in the liver and spleen within 30 days when compared with that in the i.p. group, which exhibited slight accumulation in the spleen. This work paves the way for understanding the biological behaviors of nano-MoS2 using SR techniques that provide more opportunities for future applications.
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Affiliation(s)
- Linqiang Mei
- College of Mechanical and Electronic Engineering, Shandong University of Science and Technology, Qingdao 266590, China.
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Jalilvand N, Hosseini M, Beheshti F, Ebrahimzadeh-Bideskan A. Protective effect of PPARγ agonist pioglitazone, on testicular tissue and sperm parameters in hypothyroid rats. TOXIN REV 2019. [DOI: 10.1080/15569543.2018.1564775] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Narjes Jalilvand
- Department of Anatomy and Cell Biology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mahmoud Hosseini
- Department of Physiology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Farimah Beheshti
- Department of Basic Science and Neuroscience Research Center, Torbat Heydariyeh University of Medical Sciences, Torbat Heydariyeh, Iran
| | - Alireza Ebrahimzadeh-Bideskan
- Department of Anatomy and Cell Biology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
- Microanatomy Research Center Mashhad University of Medical Sciences, Mashhad, Iran
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Sharma V, Collins LB, Chen TH, Herr N, Takeda S, Sun W, Swenberg JA, Nakamura J. Oxidative stress at low levels can induce clustered DNA lesions leading to NHEJ mediated mutations. Oncotarget 2018; 7:25377-90. [PMID: 27015367 PMCID: PMC5041911 DOI: 10.18632/oncotarget.8298] [Citation(s) in RCA: 89] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2015] [Accepted: 03/13/2016] [Indexed: 12/12/2022] Open
Abstract
DNA damage and mutations induced by oxidative stress are associated with various different human pathologies including cancer. The facts that most human tumors are characterized by large genome rearrangements and glutathione depletion in mice results in deletions in DNA suggest that reactive oxygen species (ROS) may cause gene and chromosome mutations through DNA double strand breaks (DSBs). However, the generation of DSBs at low levels of ROS is still controversial. In the present study, we show that H2O2 at biologically-relevant levels causes a marked increase in oxidative clustered DNA lesions (OCDLs) with a significant elevation of replication-independent DSBs. Although it is frequently reported that OCDLs are fingerprint of high-energy IR, our results indicate for the first time that H2O2, even at low levels, can also cause OCDLs leading to DSBs specifically in G1 cells. Furthermore, a reverse genetic approach revealed a significant contribution of the non-homologous end joining (NHEJ) pathway in H2O2-induced DNA repair & mutagenesis. This genomic instability induced by low levels of ROS may be involved in spontaneous mutagenesis and the etiology of a wide variety of human diseases like chronic inflammation-related disorders, carcinogenesis, neuro-degeneration and aging.
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Affiliation(s)
- Vyom Sharma
- Department of Environmental Sciences and Engineering, Gillings School of Global Public Health, Chapel Hill, NC 27599, USA
| | - Leonard B Collins
- Department of Environmental Sciences and Engineering, Gillings School of Global Public Health, Chapel Hill, NC 27599, USA
| | - Ting-Huei Chen
- Department of Genetics, The University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Natalie Herr
- Department of Environmental Sciences and Engineering, Gillings School of Global Public Health, Chapel Hill, NC 27599, USA
| | - Shunichi Takeda
- Department of Radiation Genetics, Graduate School of Medicine, Kyoto 606-8501, Japan
| | - Wei Sun
- Department of Genetics, The University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - James A Swenberg
- Department of Environmental Sciences and Engineering, Gillings School of Global Public Health, Chapel Hill, NC 27599, USA
| | - Jun Nakamura
- Department of Environmental Sciences and Engineering, Gillings School of Global Public Health, Chapel Hill, NC 27599, USA
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Shu T, Shen Q, Wan Y, Zhang W, Su L, Zhang X, Serpe MJ. Silver nanoparticle-loaded microgel-based etalons for H2O2sensing. RSC Adv 2018; 8:15567-15574. [PMID: 35539489 PMCID: PMC9080173 DOI: 10.1039/c8ra02215a] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2018] [Accepted: 04/16/2018] [Indexed: 02/02/2023] Open
Abstract
Silver nanoparticles (AgNPs) were generated inside the network structure of poly(N-isopropylacrylamide)-co-acrylic acid (pNIPAm-co-AAc) microgels that were sandwiched between two thin Au layers (15 nm) of an etalon. This was done by introducing Ag+ to the etalons composed of deprotonated microgels, followed by its subsequent reduction with NaBH4. The resultant microgels were collected and then characterized by transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FTIR) and X-ray photoelectron spectroscopy (XPS), verifying the loading of AgNPs with relatively uniform diameter (5–7 nm) within the microgels. Furthermore, the optical properties of the resultant etalons and their response to H2O2 were evaluated by reflectance spectroscopy. Specifically, upon the addition of H2O2, the AgNP-loaded etalons exhibited both a red shift in the position of the reflectance peaks and an increase in reflected wavelength intensity. We hypothesize that the dual signal response of the devices was a result of oxidative decomposition of the AgNPs, enabling the microgels to swell and for more light to be reflected (due to the loss of the light absorbing AgNPs). Finally, we showed that the AgNPs could be regenerated in the used etalons multiple times without a loss in performance. This work provides a cost-effective means to detect H2O2, which could be modified to sense a variety of other species of physiological and environmental importance through rationally loading other functional nanomaterials. Silver nanoparticle (AgNP)-loaded poly(N-isopropylacrylamide)-co-acrylic acid (pNIPAm-co-AAc)-based microgels were generated and used to make etalons. The etalons were shown to exhibit optical properties that depended on the concentration of H2O2 in solution.![]()
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Affiliation(s)
- Tong Shu
- Beijing Key Laboratory for Bioengineering and Sensing Technology
- Research Center for Bioengineering and Sensing Technology
- School of Chemistry and Biological Engineering
- University of Science and Technology Beijing
- Beijing 100083
| | - Qiming Shen
- Department of Chemistry
- University of Alberta
- Edmonton
- Canada T6G 2G2
| | - Yu Wan
- Department of Chemistry
- University of Alberta
- Edmonton
- Canada T6G 2G2
| | - Wei Zhang
- Department of Chemistry
- University of Alberta
- Edmonton
- Canada T6G 2G2
| | - Lei Su
- Beijing Key Laboratory for Bioengineering and Sensing Technology
- Research Center for Bioengineering and Sensing Technology
- School of Chemistry and Biological Engineering
- University of Science and Technology Beijing
- Beijing 100083
| | - Xueji Zhang
- Beijing Key Laboratory for Bioengineering and Sensing Technology
- Research Center for Bioengineering and Sensing Technology
- School of Chemistry and Biological Engineering
- University of Science and Technology Beijing
- Beijing 100083
| | - Michael J. Serpe
- Department of Chemistry
- University of Alberta
- Edmonton
- Canada T6G 2G2
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27
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Mohamed N, Gawad HA. Taurine dietary supplementation attenuates brain, thyroid, testicular disturbances and oxidative stress in streptozotocin-induced diabetes mellitus in male rats. BENI-SUEF UNIVERSITY JOURNAL OF BASIC AND APPLIED SCIENCES 2017. [DOI: 10.1016/j.bjbas.2017.04.006] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
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Chinta G, Coumar MS, Periyasamy L. Reversible Testicular Toxicity of Piperine on Male Albino Rats. Pharmacogn Mag 2017; 13:S525-S532. [PMID: 29142409 PMCID: PMC5669092 DOI: 10.4103/pm.pm_405_16] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2016] [Revised: 11/08/2016] [Indexed: 01/14/2023] Open
Abstract
Background: Piperine was widely used in traditional medicine for inducing sterility and abortion. Objective: To evaluate the effect of the piperine on testis of male albino rats Materials and Methods: Adult male rats were divided into four groups (n = 12). Group I (control): Rats were given vehicle p.o. i.e. 0.5% carboxymethyl cellulose in normal saline daily for 60 days, Group II (ED): Rats received piperine at a dose of 10 mg/kg body weight (b.w.) daily, Group III (E4D): Rats received piperine at a dose of 10 mg/kg b.w. on every 4th day, Group IV (E7D): Rats received piperine at a dose of 10 mg/kg b.w. on every 7th day. Half of the animals from each group were sacrificed after the treatment period (60 days), and the remaining were kept for drug-free withdrawal period (60 days) and then sacrificed. Results: Piperine significantly decreased the reproductive organ weights in groups ED and E4D. Piperine induced hormonal imbalance by altering the serum levels of follicle-stimulating hormone, luteinizing hormone, sex hormone binding globulin, serum, and testicular testosterone in groups ED and E4D. Furthermore, piperine decreased the activity of germ cell markers and Leydig cellular steroidogenic enzymes in the groups ED and E4D after 60 days. All the above-altered values returned to normal levels after withdrawal period. Histopathological findings also supported the above findings. Conclusion: From the above data, it can be concluded that piperine could be a good lead molecule for the development of reversible oral male contraceptive. SUMMARY Piperine was employed for the contraceptive purposes in traditional medicine Piperine significantly impaired the spermatogenesis by decreasing the testicular hormone synthesis in groups ED and E4D Piperine disrupted the testicular antioxidant system by promoting the ROS production and hydroxyl radical generation in rat testis in groups ED and E4D Histopathological evidence supported the disruption of spermatogenesis by piperine All the effects of piperine after the treatment period (i.e. 60 days) were back to normal after the withdrawal period (i.e., after 120 days).
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Affiliation(s)
- Gopichand Chinta
- DBT-Interdesciplinary Program in Life sciences, Pondicherry University, Puducherry, India
| | | | - Latha Periyasamy
- Department of Biochemistry and Molecular Biology, School of Life Sciences, Pondicherry Universty, Kalapet, Puducherry, India
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Rutin attenuates H 2O 2-induced oxidation damage and apoptosis in Leydig cells by activating PI3K/Akt signal pathways. Biomed Pharmacother 2017; 88:500-506. [PMID: 28126675 DOI: 10.1016/j.biopha.2017.01.066] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2016] [Revised: 01/09/2017] [Accepted: 01/10/2017] [Indexed: 01/12/2023] Open
Abstract
Oxidative stress is a primary factor in the pathology of male infertility. The strong antioxidative capacity of rutin has been proven by numerous studies, but a protective role in the context of male reproduction remains to be elucidated. To explore the biological role of rutin in protecting male reproductive function and the potential underlying mechanism, H2O2-induced Leydig cells were used as a cell model of oxidation damage. Our findings showed that rutin at concentrations of 10, 20, and 40μmol/L remarkably increased cell survival rate of H2O2-induced Leydig cells to 70.1%, 86.8%, and 80.3% respectively. Next, rutin with concentrations of 10, 20, and 40μmol/L decreased reactive oxygen species (ROS) and malondialdehyde (MDA) levels but increased the levels of glutathione (GSH) and testosterone in H2O2-induced Leydig cells. The activities of superoxide dismutase (SOD), catalase (CAT) and peroxidase (POD) were remarkably increased by rutin treatment with concentrations of 20 and 40μmol/L, but glutathione peroxidase (GSH-Px) activity was notably decreased. Moreover, rutin with concentrations of 10, 20, and 40μmol/L increased Bcl-2 protein levels but decreased protein levels of Bax and caspase-3. Furthermore, 20μmol/L rutin significantly abrogated the decrease in levels of phosphoinositide 3-kinase (PI3K) and phosphorylated serine/threonine kinase (p-AKT) induced by H2O2. Pretreatment with LY294002, a PI3K inhibitor, antagonized protective action of 20μmol/L rutin against H2O2-induced cell activities, intracellular oxidant, testosterone, antioxidant enzyme activities, and the apoptosis related protein expression. Taken together, these results suggest that rutin attenuates H2O2-induced oxidation damage and apoptosis in Leydig cells by activating PI3K/Akt signal pathways, providing a promising strategy to decrease oxidative stress associated with male infertility.
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30
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Zhang QM, Berg D, Duan J, Mugo SM, Serpe MJ. Optical Devices Constructed from Ferrocene-Modified Microgels for H 2O 2 Sensing. ACS APPLIED MATERIALS & INTERFACES 2016; 8:27264-27269. [PMID: 27680293 DOI: 10.1021/acsami.6b11462] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Ferrocene-modified poly(N-isopropylacrylamide)-based microgels were synthesized, characterized, and used to construct optical devices (etalons). The response of the microgels and etalons to H2O2 was investigated, and we show that both the microgel diameter and the optical properties of the etalons depend on the solution concentration of H2O2 from 0.6 to 35 mM. This behavior is a direct result of the oxidation of ferrocene, which influences the microgel diameter. This was also demonstrated by electrochemical-mediated oxidation/reduction of ferrocene using cyclic voltammetry. We go on to show that these materials could be used to monitor H2O2 that is generated from enzymatic reactions. Specifically, we show that the H2O2 generated from the oxidation of glucose catalyzed by glucose oxidase could be quantified. Finally, the devices can be reused multiple times via a regeneration process. This investigation illustrates the versatility of the etalon system to detect species of broad relevance and how they could potentially be used to quantify products of biological reactions.
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Affiliation(s)
- Qiang Matthew Zhang
- Department of Chemistry, University of Alberta , Edmonton, AB T6G 2G2, Canada
| | - Darren Berg
- Physical Sciences Department, MacEwan University , Edmonton, AB T5J 4S2, Canada
| | - Jiaqi Duan
- Department of Chemistry, University of Alberta , Edmonton, AB T6G 2G2, Canada
| | - Samuel M Mugo
- Physical Sciences Department, MacEwan University , Edmonton, AB T5J 4S2, Canada
| | - Michael J Serpe
- Department of Chemistry, University of Alberta , Edmonton, AB T6G 2G2, Canada
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31
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Costa EP, Façanha AR, Cruz CS, Silva JN, Machado JA, Carvalho GM, Fernandes MR, Martins R, Campos E, Romeiro NC, Githaka NW, Konnai S, Ohashi K, Vaz IS, Logullo C. A novel mechanism of functional cooperativity regulation by thiol redox status in a dimeric inorganic pyrophosphatase. Biochim Biophys Acta Gen Subj 2016; 1861:2922-2933. [PMID: 27664315 DOI: 10.1016/j.bbagen.2016.09.017] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2016] [Revised: 08/30/2016] [Accepted: 09/18/2016] [Indexed: 12/22/2022]
Abstract
BACKGROUND Inorganic PPases are essential metal-dependent enzymes that convert pyrophosphate into orthophosphate. This reaction is quite exergonic and provides a thermodynamic advantage for many ATP-driven biosynthetic reactions. We have previously demonstrated that cytosolic PPase from R. microplus embryos is an atypical Family I PPase. Here, we explored the functional role of the cysteine residues located at the homodimer interface, its redox sensitivity, as well as structural and kinetic parameters related to thiol redox status. METHODS In this work, we used prokaryotic expression system for recombinant protein overexpression, biochemical approaches to assess kinetic parameters, ticks embryos and computational approaches to analyze and predict critical amino acids as well as physicochemical properties at the homodimer interface. RESULTS Cysteine 339, located at the homodimer interface, was found to play an important role in stabilizing a functional cooperativity between the two catalytic sites, as indicated by kinetics and Hill coefficient analyses of the WT-rBmPPase. WT-rBmPPase activity was up-regulated by physiological antioxidant molecules such as reduced glutathione and ascorbic acid. On the other hand, hydrogen peroxide at physiological concentrations decreased the affinity of WT-rBmPPase for its substrate (PPi), probably by inducing disulfide bridge formation. CONCLUSIONS Our results provide a new angle in understanding redox control by disulfide bonds formation in enzymes from hematophagous arthropods. The reversibility of the down-regulation is dependent on hydrophobic interactions at the dimer interface. GENERAL SIGNIFICANCE This study is the first report on a soluble PPase where dimeric cooperativity is regulated by a redox mechanism, according to cysteine redox status.
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Affiliation(s)
- Evenilton P Costa
- Laboratório de Química e Função de Proteínas e Peptídeos, Laboratório de Biologia Tecidual e Celular and Unidade de Experimentação Animal, Universidade Estadual do Norte Fluminense Darcy Ribeiro, Brazil
| | - Arnoldo R Façanha
- Laboratório de Química e Função de Proteínas e Peptídeos, Laboratório de Biologia Tecidual e Celular and Unidade de Experimentação Animal, Universidade Estadual do Norte Fluminense Darcy Ribeiro, Brazil
| | - Criscila S Cruz
- Laboratório de Química e Função de Proteínas e Peptídeos, Laboratório de Biologia Tecidual e Celular and Unidade de Experimentação Animal, Universidade Estadual do Norte Fluminense Darcy Ribeiro, Brazil; Laboratório Integrado de Bioquímica Hatisaburo Masuda, Laboratório Integrado de Computação Científica, Núcleo de Pesquisas em Ecologia e Desenvolvimento Sócio-Ambiental de Macaé (NUPEM), Universidade Federal do Rio de Janeiro, Macaé, Brazil
| | - Jhenifer N Silva
- Laboratório de Química e Função de Proteínas e Peptídeos, Laboratório de Biologia Tecidual e Celular and Unidade de Experimentação Animal, Universidade Estadual do Norte Fluminense Darcy Ribeiro, Brazil
| | - Josias A Machado
- Laboratório de Química e Função de Proteínas e Peptídeos, Laboratório de Biologia Tecidual e Celular and Unidade de Experimentação Animal, Universidade Estadual do Norte Fluminense Darcy Ribeiro, Brazil
| | - Gabriel M Carvalho
- Laboratório de Química e Função de Proteínas e Peptídeos, Laboratório de Biologia Tecidual e Celular and Unidade de Experimentação Animal, Universidade Estadual do Norte Fluminense Darcy Ribeiro, Brazil
| | - Mariana R Fernandes
- Laboratório de Química e Função de Proteínas e Peptídeos, Laboratório de Biologia Tecidual e Celular and Unidade de Experimentação Animal, Universidade Estadual do Norte Fluminense Darcy Ribeiro, Brazil
| | - Renato Martins
- Laboratório de Química e Função de Proteínas e Peptídeos, Laboratório de Biologia Tecidual e Celular and Unidade de Experimentação Animal, Universidade Estadual do Norte Fluminense Darcy Ribeiro, Brazil
| | - Eldo Campos
- Laboratório Integrado de Bioquímica Hatisaburo Masuda, Laboratório Integrado de Computação Científica, Núcleo de Pesquisas em Ecologia e Desenvolvimento Sócio-Ambiental de Macaé (NUPEM), Universidade Federal do Rio de Janeiro, Macaé, Brazil
| | - Nelilma C Romeiro
- Laboratório Integrado de Bioquímica Hatisaburo Masuda, Laboratório Integrado de Computação Científica, Núcleo de Pesquisas em Ecologia e Desenvolvimento Sócio-Ambiental de Macaé (NUPEM), Universidade Federal do Rio de Janeiro, Macaé, Brazil
| | - Naftaly W Githaka
- Tick Unit, International Livestock Research Institute, P.O. Box 30709, Nairobi, Kenya
| | - Satoru Konnai
- Laboratory of Infectious Diseases, Department of Disease Control, Graduate School of Veterinary Medicine, Hokkaido University, Japan
| | - Kazuhiko Ohashi
- Laboratory of Infectious Diseases, Department of Disease Control, Graduate School of Veterinary Medicine, Hokkaido University, Japan
| | - Itabajara S Vaz
- Faculdade de Veterinária e Centro de Biotecnologia do Estado do Rio Grande do Sul, Universidade Federal do Rio Grande do Sul, Brazil
| | - Carlos Logullo
- Laboratório de Química e Função de Proteínas e Peptídeos, Laboratório de Biologia Tecidual e Celular and Unidade de Experimentação Animal, Universidade Estadual do Norte Fluminense Darcy Ribeiro, Brazil.
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Li Z, Xin Y, Wu W, Fu B, Zhang Z. Topotactic Conversion of Copper(I) Phosphide Nanowires for Sensitive Electrochemical Detection of H2O2 Release from Living Cells. Anal Chem 2016; 88:7724-9. [DOI: 10.1021/acs.analchem.6b01637] [Citation(s) in RCA: 106] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Zhenzhen Li
- School of Chemistry and Molecular
Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Yanmei Xin
- School of Chemistry and Molecular
Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Wenlong Wu
- School of Chemistry and Molecular
Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Baihe Fu
- School of Chemistry and Molecular
Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Zhonghai Zhang
- School of Chemistry and Molecular
Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
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Duan T, Fan K, Chen S, Yao Q, Zeng R, Hong Z, Peng L, Shao Y, Yao B. Role of peroxiredoxin 2 in H2O2‑induced oxidative stress of primary Leydig cells. Mol Med Rep 2016; 13:4807-13. [PMID: 27082744 DOI: 10.3892/mmr.2016.5147] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2015] [Accepted: 03/23/2016] [Indexed: 12/27/2022] Open
Abstract
Late‑onset hypogonadism is defined as a condition caused by a decline in the levels of testosterone with aging. One of the major factors contributing to the low levels of testosterone is the accumulation of reactive oxygen species (ROS) in Leydig cells during the ageing process. Peroxiredoxin 2 (Prdx2), a member of the peroxiredoxin family, is an antioxidant protein, the predominant function of which is to neutralize ROS. However, its role in Leydig cells remains to be elucidated. In the present study, primary Leydig cells were exposed to low concentrations of hydrogen peroxide (H2O2) to induce oxidative stress. Cell apoptosis was measured using an Annexin V fluorescein isothiocyanate/propidium iodide apoptosis detection kit and flow cytometry. The level of testosterone was determined by radioimmunoassay, and the mRNA and protein expression levels of Prdx2 were detected by reverse transcription‑polymerase chain reaction and western blotting, respectively. The results revealed a significant increase in cell apoptosis and decrease in testosterone production. In addition, the expression of Prdx2 was decreased by H2O2 in a dose‑ and time‑dependent manner, and this decrease may have been caused by the induction of its molecular structure transformation due to H2O2 elimination. The above findings indicated that Prdx2 may prevent H2O2 accumulation in Leydig cells, and may be important in oxidative stress‑induced apoptosis and decreased testosterone production.
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Affiliation(s)
- Ting Duan
- Center of Reproductive Medicine, Nanjing Jinling Hospital, Nanjing University School of Medicine, Nanjing, Jiangsu 210002, P.R. China
| | - Kai Fan
- Center of Reproductive Medicine, Nanjing Jinling Hospital, Nanjing University School of Medicine, Nanjing, Jiangsu 210002, P.R. China
| | - Shengrong Chen
- Center of Reproductive Medicine, Nanjing Jinling Hospital, Nanjing University School of Medicine, Nanjing, Jiangsu 210002, P.R. China
| | - Qi Yao
- Center of Reproductive Medicine, Nanjing Jinling Hospital, Nanjing University School of Medicine, Nanjing, Jiangsu 210002, P.R. China
| | - Rong Zeng
- Center of Reproductive Medicine, Nanjing Jinling Hospital, Nanjing University School of Medicine, Nanjing, Jiangsu 210002, P.R. China
| | - Zhiwei Hong
- Center of Reproductive Medicine, Nanjing Jinling Hospital, Nanjing University School of Medicine, Nanjing, Jiangsu 210002, P.R. China
| | - Longping Peng
- Center of Reproductive Medicine, Nanjing Jinling Hospital, Nanjing University School of Medicine, Nanjing, Jiangsu 210002, P.R. China
| | - Yong Shao
- Center of Reproductive Medicine, Nanjing Jinling Hospital, Nanjing University School of Medicine, Nanjing, Jiangsu 210002, P.R. China
| | - Bing Yao
- Center of Reproductive Medicine, Nanjing Jinling Hospital, Nanjing University School of Medicine, Nanjing, Jiangsu 210002, P.R. China
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Di-Luoffo M, Brousseau C, Bergeron F, Tremblay JJ. The Transcription Factor MEF2 Is a Novel Regulator of Gsta Gene Class in Mouse MA-10 Leydig Cells. Endocrinology 2015; 156:4695-706. [PMID: 26393304 DOI: 10.1210/en.2015-1500] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Testosterone is essential for spermatogenesis and the development of male sexual characteristics. However, steroidogenesis produces a significant amount of reactive oxygen species (ROS), which can disrupt testosterone production. The myocyte enhancer factor 2 (MEF2) is an important regulator of organogenesis and cell differentiation in various tissues. In the testis, MEF2 is present in Sertoli and Leydig cells throughout fetal and adult life. MEF2-deficient MA-10 Leydig cells exhibit a significant decrease in steroidogenesis concomitant with a reduction in glutathione S-transferase (GST) activity and in the expression of the 4 Gsta members (GST) that encode ROS inactivating enzymes. Here, we report a novel role for MEF2 in ROS detoxification by directly regulating Gsta expression in Leydig cells. Endogenous Gsta1-4 mRNA levels were decreased in MEF2-deficient MA-10 Leydig cells. Conversely, overexpression of MEF2 increased endogenous Gsta1 levels. MEF2 recruitment to the proximal Gsta1 promoter and direct binding on the -506-bp MEF2 element were confirmed by chromatin immunoprecipitation and DNA precipitation assays. In MA-10 Leydig cells, MEF2 activates the Gsta1 promoter and cooperates with Ca(2+)/calmodulin-dependent kinases I to further enhance Gsta1 promoter activity. These effects were lost when the -506-bp MEF2 element was mutated or when a MEF2-Engrailed dominant negative protein was used. Similar results were obtained on the Gsta2, Gsta3, and Gsta4 promoters, suggesting a global role for MEF2 factors in the regulation of all 4 Gsta genes. Altogether, our results identify a novel role for MEF2 in the expression of genes involved in ROS detoxification, a process essential for adequate testosterone production in Leydig cells.
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Affiliation(s)
- Mickaël Di-Luoffo
- Reproduction, Mother and Child Health (M.D.-L., C.B., F.B., J.J.T.), Centre de Recherche du Centre Hospitalier Universitaire de Québec, Québec City, Québec, Canada G1V 4G2; and Centre de Recherche en Biologie de la Reproduction (J.J.T.), Department of Obstetrics, Gynecology, and Reproduction, Faculty of Medicine, Université Laval, Québec City, Québec, Canada G1V 0A6
| | - Catherine Brousseau
- Reproduction, Mother and Child Health (M.D.-L., C.B., F.B., J.J.T.), Centre de Recherche du Centre Hospitalier Universitaire de Québec, Québec City, Québec, Canada G1V 4G2; and Centre de Recherche en Biologie de la Reproduction (J.J.T.), Department of Obstetrics, Gynecology, and Reproduction, Faculty of Medicine, Université Laval, Québec City, Québec, Canada G1V 0A6
| | - Francis Bergeron
- Reproduction, Mother and Child Health (M.D.-L., C.B., F.B., J.J.T.), Centre de Recherche du Centre Hospitalier Universitaire de Québec, Québec City, Québec, Canada G1V 4G2; and Centre de Recherche en Biologie de la Reproduction (J.J.T.), Department of Obstetrics, Gynecology, and Reproduction, Faculty of Medicine, Université Laval, Québec City, Québec, Canada G1V 0A6
| | - Jacques J Tremblay
- Reproduction, Mother and Child Health (M.D.-L., C.B., F.B., J.J.T.), Centre de Recherche du Centre Hospitalier Universitaire de Québec, Québec City, Québec, Canada G1V 4G2; and Centre de Recherche en Biologie de la Reproduction (J.J.T.), Department of Obstetrics, Gynecology, and Reproduction, Faculty of Medicine, Université Laval, Québec City, Québec, Canada G1V 0A6
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Dutta A, Gautam R, Chatterjee S, Ariese F, Sikdar SK, Umapathy S. Ascorbate protects neurons against oxidative stress: a Raman microspectroscopic study. ACS Chem Neurosci 2015; 6:1794-801. [PMID: 26237409 DOI: 10.1021/acschemneuro.5b00106] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
Abstract
Oxidative stress due to excessive accumulation of reactive oxygen or nitrogen species in the brain as seen in certain neurodegenerative diseases can have deleterious effects on neurons. Hydrogen peroxide, endogenously generated in neurons under normal physiological conditions, can produce an excess of hydroxyl radical via a Fenton mediated mechanism. This may induce acute oxidative injury if not scavenged or removed effectively by antioxidants. There are several biochemical assay methods to estimate oxidative injury in cells; however, they do not provide information on the biochemical changes as the cells get damaged progressively under oxidative stress. Raman microspectroscopy offers the possibility of real time monitoring of the chemical composition of live cells undergoing oxidative stress under physiological conditions. In the present study, a hippocampal neuron coculture was used to observe the acute impact of hydroxyl radicals generated by hydrogen peroxide in the presence of Fe(2+) (Fenton reaction). Raman peaks related to nucleic acids (725, 782, 1092, 1320, 1340, 1420, and 1576 cm(-1)) showed time-dependent changes over the experimental period (60 min), indicating the breakdown of the phosphodiester backbone as well as nuclear bases. Interestingly, ascorbic acid (a potent antioxidant) when cotreated with Fenton reactants showed protection of cells as inferred from the Raman spectra, presumably by scavenging hydroxyl radicals. Little or no change in the Raman spectra was observed for untreated control cells and for cells exposed to Fe(2+) only, H2O2 only, and ascorbate only. A live-dead assay study also supported the current observations. Hence, Raman microspectroscopy has the potential to be an excellent noninvasive tool for early detection of oxidative stress that is seen in neurodegenerative diseases.
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Affiliation(s)
| | | | | | - Freek Ariese
- LaserLaB,
Faculty of Sciences, VU University Amsterdam, 1081 HV Amsterdam, The Netherlands
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Pu S, Ren L, Liu Q, Kuang J, Shen J, Cheng S, Zhang Y, Jiang W, Zhang Z, Jiang C, He J. Loss of 5-lipoxygenase activity protects mice against paracetamol-induced liver toxicity. Br J Pharmacol 2015; 173:66-76. [PMID: 26398229 DOI: 10.1111/bph.13336] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2015] [Revised: 08/12/2015] [Accepted: 09/17/2015] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND AND PURPOSE Paracetamol (acetaminophen) is the most widely used over-the-counter analgesic and overdosing with paracetamol is the leading cause of hospital admission for acute liver failure. 5-Lipoxygenase (5-LO) catalyses arachidonic acid to form LTs, which lead to inflammation and oxidative stress. In this study, we examined whether deletion or pharmacological inhibition of 5-LO could protect mice against paracetamol-induced hepatic toxicity. EXPERIMENTAL APPROACH Both genetic deletion and pharmacological inhibition of 5-LO in C57BL/6J mice were used to study the role of this enzyme in paracetamol induced liver toxicity. Serum and tissue biochemistry, H&E staining, and real-time PCR were used to assess liver toxicity. KEY RESULTS Deletion or pharmacological inhibition of 5-LO in mice markedly ameliorated paracetamol-induced hepatic injury, as shown by decreased serum alanine transaminase and aspartate aminotransferase levels and hepatic centrilobular necrosis. The hepatoprotective effect of 5-LO inhibition was associated with induction of the antitoxic phase II conjugating enzyme, sulfotransferase2a1, suppression of the pro-toxic phase I CYP3A11 and reduction of the hepatic transporter MRP3. In 5-LO(-/-) mice, levels of GSH were increased, and oxidative stress decreased. In addition, PPAR α, a nuclear receptor that confers resistance to paracetamol toxicity, was activated in 5-LO(-/-) mice. CONCLUSIONS AND IMPLICATIONS The activity of 5-LO may play a critical role in paracetamol-induced hepatic toxicity by regulating paracetamol metabolism and oxidative stress.
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Affiliation(s)
- Shiyun Pu
- Department of Pharmacy, Collaborative Innovation Center of Biotherapy, West China Hospital of Sichuan University, Chengdu, China
| | - Lin Ren
- Department of Pharmacy, Collaborative Innovation Center of Biotherapy, West China Hospital of Sichuan University, Chengdu, China
| | - Qinhui Liu
- Laboratory of Clinical Pharmacy and Adverse Drug Reaction, Collaborative Innovation Center of Biotherapy, West China Hospital of Sichuan University, Chengdu, China
| | - Jiangying Kuang
- Department of Pharmacy, Collaborative Innovation Center of Biotherapy, West China Hospital of Sichuan University, Chengdu, China
| | - Jing Shen
- Department of Pharmacy, Collaborative Innovation Center of Biotherapy, West China Hospital of Sichuan University, Chengdu, China
| | - Shihai Cheng
- Department of Pharmacy, Collaborative Innovation Center of Biotherapy, West China Hospital of Sichuan University, Chengdu, China
| | - Yuwei Zhang
- Division of Endocrinology and Metabolism, Collaborative Innovation Center of Biotherapy, West China Hospital of Sichuan University, Chengdu, China
| | - Wei Jiang
- Molecular Medicine Research Center, State Key Laboratory of Biotherapy and Cancer Center, Collaborative Innovation Center of Biotherapy, West China Hospital of Sichuan University, Chengdu, China
| | - Zhiyong Zhang
- Department of Pharmacy, Collaborative Innovation Center of Biotherapy, West China Hospital of Sichuan University, Chengdu, China
| | - Changtao Jiang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Beijing, China
| | - Jinhan He
- Department of Pharmacy, Collaborative Innovation Center of Biotherapy, West China Hospital of Sichuan University, Chengdu, China.,Laboratory of Clinical Pharmacy and Adverse Drug Reaction, Collaborative Innovation Center of Biotherapy, West China Hospital of Sichuan University, Chengdu, China
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Ramatchandirin B, Sadasivam M, Kannan A, Prahalathan C. Sirtuin 4 Regulates Lipopolysaccharide Mediated Leydig Cell Dysfunction. J Cell Biochem 2015; 117:904-16. [PMID: 26365714 DOI: 10.1002/jcb.25374] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2015] [Accepted: 09/10/2015] [Indexed: 12/28/2022]
Abstract
Bacterial lipopolysaccharide (LPS) is the most important contributing factor in pathogenesis of bacterial infection in male accessory glands; and it has shown to inhibit testicular steroidogenesis and induce apoptosis. The present study demonstrates that LPS causes mitochondrial dysfunction via suppression of sirtuin 4 (SIRT4); which in turn affects Leydig cell function by modulating steroidogenesis and apoptosis. LC-540 Leydig cells treated with LPS (10 µg/ml) showed impaired steroidogenesis and increased cellular apoptosis. The mRNA and protein expression of SIRT4 were decreased in LPS treated cells when compared to controls. The obtained data suggest that the c-Jun N-terminal kinase (JNK) activation suppresses SIRT4 expression in LPS treated Leydig cells. Furthermore, the overexpression of SIRT4 prevented LPS induced impaired steroidogenesis and cellular apoptosis by improving mitochondrial function. These findings provide valuable information that SIRT4 regulates LPS mediated Leydig cell dysfunction.
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Affiliation(s)
| | - Mohanraj Sadasivam
- Department of Biochemistry, Bharathidasan University, Tiruchirappalli, India
| | - Arun Kannan
- Department of Biochemistry, Bharathidasan University, Tiruchirappalli, India
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38
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Glade MJ, Smith K, Meguid MM. A glance at…nutritional antioxidants and testosterone secretion. Nutrition 2015; 31:1295-8. [PMID: 26254688 DOI: 10.1016/j.nut.2015.05.019] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2015] [Revised: 05/22/2015] [Accepted: 05/23/2015] [Indexed: 12/25/2022]
Affiliation(s)
| | - Kyl Smith
- Progressive Laboratories Inc., Irving, Texas, USA
| | - Michael M Meguid
- Department of Surgery, University Hospital, Upstate Medical University, Syracuse, New York, USA
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Gallardo Bolaños JM, Balao da Silva C, Martín Muñoz P, Plaza Dávila M, Ezquerra J, Aparicio IM, Tapia JA, Ortega Ferrusola C, Peña FJ. Caspase activation, hydrogen peroxide production and Akt dephosphorylation occur during stallion sperm senescence. Reprod Domest Anim 2014; 49:657-664. [PMID: 24924976 DOI: 10.1111/rda.12343] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2014] [Accepted: 05/03/2014] [Indexed: 12/23/2022]
Abstract
To investigate the mechanisms inducing sperm death after ejaculation, stallion ejaculates were incubated in BWW media during 6 h at 37°C. At the beginning of the incubation period and after 1, 2, 4 and 6 h sperm motility and kinematics (CASA), mitochondrial membrane potential and membrane permeability and integrity were evaluated (flow cytometry). Also, at the same time intervals, active caspase 3, hydrogen peroxide, superoxide anion (flow cytometry) and Akt phosphorylation (flow cytometry) were evaluated. Major decreases in sperm function occurred after 6 h of incubation, although after 1 h decrease in the percentages of motile and progressive motile sperm occurred. The decrease observed in sperm functionality after 6 h of incubation was accompanied by a significant increase in the production of hydrogen peroxide and the greatest increase in caspase 3 activity. Additionally, the percentage of phosphorylated Akt reached a minimum after 6 h of incubation. These results provide evidences that sperm death during in vitro incubation is largely an apoptotic phenomena, probably stimulated by endogenous production of hydrogen peroxide and the lack of prosurvival factors maintaining Akt in a phosphorylated status. Disclosing molecular mechanisms leading to sperm death may help to develop new strategies for stallion sperm conservation.
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Affiliation(s)
- J M Gallardo Bolaños
- Laboratory of Equine Reproduction and Equine Spermatology, Faculty of Veterinary Medicine, University of Extremadura, Cáceres, Spain
| | - C Balao da Silva
- Laboratory of Equine Reproduction and Equine Spermatology, Faculty of Veterinary Medicine, University of Extremadura, Cáceres, Spain
| | - P Martín Muñoz
- Laboratory of Equine Reproduction and Equine Spermatology, Faculty of Veterinary Medicine, University of Extremadura, Cáceres, Spain
| | - M Plaza Dávila
- Laboratory of Equine Reproduction and Equine Spermatology, Faculty of Veterinary Medicine, University of Extremadura, Cáceres, Spain
| | - J Ezquerra
- Faculty of Veterinary Medicine, Veterinary Teaching Hospital, University of Extremadura, Cáceres, Spain
| | - I M Aparicio
- Department of Physiology, Faculty of Veterinary Medicine, University of Extremadura, Cáceres, Spain
| | - J A Tapia
- Department of Physiology, Faculty of Veterinary Medicine, University of Extremadura, Cáceres, Spain
| | - C Ortega Ferrusola
- Laboratory of Equine Reproduction and Equine Spermatology, Faculty of Veterinary Medicine, University of Extremadura, Cáceres, Spain
| | - F J Peña
- Laboratory of Equine Reproduction and Equine Spermatology, Faculty of Veterinary Medicine, University of Extremadura, Cáceres, Spain
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Hassan HA, Isa AM, El-Kholy WM, Nour SE. Testicular disorders induced by plant growth regulators: cellular protection with proanthocyanidins grape seeds extract. Cytotechnology 2013; 65:851-62. [PMID: 23292365 PMCID: PMC3967610 DOI: 10.1007/s10616-012-9525-3] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2012] [Accepted: 12/12/2012] [Indexed: 01/13/2023] Open
Abstract
The present study aims to investigate the adverse effects of plant growth regulators : gibberellic acid (GA3) and indoleacetic acid (IAA) on testicular functions in rats, and extends to investigate the possible protective role of grape seed extract, proanthocyanidin (PAC). Male rats were divided into six groups; control group, PAC, GA3, IAA, GA3 + PAC and IAA + PAC groups. The data showed that GA3 and IAA caused significant increase in total lipids, total cholesterol, triglycerides, phospholipids and low-density-lipoprotein cholesterol in the serum, concomitant with a significant decrease in high-density-lipoprotein cholesterol, total protein, and testosterone levels. In addition, there was significant decrease in the activity of alkaline phosphatase, acid phosphatase, and gamma-glutamyl transferase. A significant decrease was detected also in epididymyal fructose along with a significant reduction in sperm count. Testicular lipid peroxidation product and hydrogen peroxide (H2O2) levels were significantly increased. Meanwhile, the total antioxidant capacity, glutathione, sulphahydryl group content, as well as superoxide dismutase, catalase, and glucose-6-phosphate dehydrogenase activity were significantly decreased. Moreover, there were a number of histopathological testicular changes including Leydig's cell degeneration, reduction in seminiferous tubule and necrotic symptoms and sperm degeneration in both GA3- and IAA-treated rats. However, an obvious recovery of all the above biochemical and histological testicular disorders was detected when PAC seed extract was supplemented to rats administered with GA3 or IAA indicating its protective effect. Therefore it was concluded that supplementation with PAC had ameliorative effects on those adverse effects of the mentioned plant growth regulators through its natural antioxidant properties.
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Affiliation(s)
- Hanaa A Hassan
- Physiology Division, Zoology Department, Faculty of Science, Mansoura University, Mansoura, Egypt,
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Low level of hydrogen peroxide induces lipid synthesis in BRL-3A cells through a CAP-independent SREBP-1a activation. Int J Biochem Cell Biol 2013; 45:1419-26. [DOI: 10.1016/j.biocel.2013.04.004] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2013] [Revised: 03/26/2013] [Accepted: 04/03/2013] [Indexed: 01/18/2023]
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Donoghue MA, Xu X, Bernlohr DA, Arriaga EA. Capillary electrophoretic analysis of hydroxyl radicals produced by respiring mitochondria. Anal Bioanal Chem 2013; 405:6053-60. [PMID: 23665638 DOI: 10.1007/s00216-013-7022-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2013] [Revised: 04/20/2013] [Accepted: 04/25/2013] [Indexed: 12/20/2022]
Abstract
Here, we report the use of a capillary electrophoretic method with laser-induced fluorescence detection to evaluate hydroxyl radicals produced by respiring mitochondria. The probe, hydroxyphenylfluorescein (HPF), is separated from the product, fluorescein, in under 5 min with zeptomole and attomole limits of detection for fluorescein and HPF, respectively. Purification of the probe with a C-18 SPE column is necessary to reduce the fluorescein impurity in the probe stock solution from 0.4% to less than 0.001%. HPF was responsive to hydroxyl radicals produced by isolated mitochondria from L6 cells, and this signal was blunted when DMSO was added to scavenge hydroxyl radicals and when carbonyl cyanide m-chlorophenylhydrazone was added to depolarize the mitochondria. The method was used to compare hydroxyl radical levels in mitochondria isolated from brown adipose tissue of lean and obese mice. Mitochondria from obese mice produced significantly more hydroxyl radicals than those from lean mice.
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Affiliation(s)
- Margaret A Donoghue
- Department of Chemistry, University of Minnesota, 207 Pleasant St. SE, Minneapolis, MN 55455, USA
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Abstract
Ageing is a process characterized by a progressive decline in cellular function, organismal fitness and increased risk of age-related diseases and death. Several hundred theories have attempted to explain this phenomenon. One of the most popular is the 'oxidative stress theory', originally termed the 'free radical theory'. The endocrine system seems to have a role in the modulation of oxidative stress; however, much less is known about the role that oxidative stress might have in the ageing of the endocrine system and the induction of age-related endocrine diseases. This Review outlines the interactions between hormones and oxidative metabolism and the potential effects of oxidative stress on ageing of endocrine organs. Many different mechanisms that link oxidative stress and ageing are discussed, all of which converge on the induction or regulation of inflammation. All these mechanisms, including cell senescence, mitochondrial dysfunction and microRNA dysregulation, as well as inflammation itself, could be targets of future studies aimed at clarifying the effects of oxidative stress on ageing of endocrine glands.
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Affiliation(s)
- Giovanni Vitale
- Department of Clinical Sciences and Community Health, University of Milan, Istituto Auxologico Italiano IRCCS, Via Zucchi 18, Cusano Milanino (MI) 20095, Italy
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Anand H, Misro MM, Sharma SB, Prakash S. siRNA as a tool to delineate pathway channelization in H2O2 induced apoptosis of primary Leydig cells in vitro. Apoptosis 2012; 17:1131-43. [DOI: 10.1007/s10495-012-0749-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Mono-(2-ethylhexyl) phthalate affects the steroidogenesis in rat Leydig cells through provoking ROS perturbation. Toxicol In Vitro 2012; 26:950-5. [DOI: 10.1016/j.tiv.2012.04.003] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2011] [Revised: 03/14/2012] [Accepted: 04/04/2012] [Indexed: 11/23/2022]
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Anand H, Misro MM, Sharma SB, Prakash S. Cytoprotective effects of fruit pulp of Eugenia jambolana on H 2 O 2 -induced oxidative stress and apoptosis in rat Leydig cells in vitro. Andrologia 2012; 45:145-57. [PMID: 22731239 DOI: 10.1111/j.1439-0272.2012.01323.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/02/2012] [Indexed: 11/30/2022] Open
Abstract
This study was undertaken to investigate the cytoprotective effect of the fruit pulp of Eugenia jambolana (50-250 μg ml(-1) ) against the damage induced by H 2 O 2 (100 μm) exposure to Leydig cells in vitro. Cell survival with extract was found comparable to similar effects by N-acetyl-l-cysteine. H 2 O 2 -induced rise in thiobarbituric acid reactive substance formation and decline in the activity and expression of antioxidant enzymes like superoxide dismutase, catalase and glutathione-s-transferase were effectively checked. Cellular glutathione and total antioxidant capacity demonstrated significant improvement. The increase in expression of inducible nitric oxide (NO) synthase leading to NO production was successfully countered. Co-treatment of the extract helped in the down-regulation of caspase-3 and poly-ADP-ribose polymerase resulting in a significant reduction in Leydig cell apoptosis induced by H 2 O 2 . Upstream marker proteins of extrinsic (caspase-8, Fas, FasL) and intrinsic (caspase-9) pathway of metazoan apoptosis were identically down-regulated. The Bcl-2 family of proteins, though, remained unaffected. The extract also positively modulated the other marker proteins like c-Jun NH 2 -terminal kinase, p38, Akt, nuclear factor-κB, c-Fos, cellular FLICE-inhibitory protein, cyclooxygenase-2 and p53. Taken together, the above-mentioned findings establish the anti-oxidative and anti-apoptotic potency of the extract that ameliorates the H 2 O 2 -induced adverse effects on rat Leydig cells in vitro.
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Affiliation(s)
- H Anand
- Department of Reproductive Biomedicine, National Institute of Health and Family Welfare, New Delhi- 110067, India
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Lee EH, Oh JH, Lee YS, Park HJ, Choi MS, Park SM, Kang SJ, Yoon S. Gene expression analysis of toxicological pathways in TM3 leydig cell lines treated with Ethane dimethanesulfonate. J Biochem Mol Toxicol 2012; 26:213-23. [DOI: 10.1002/jbt.21409] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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Slameňová D, Horváthová E, Kováčiková Z, Kozics K, Hunáková Ľ. Essential rosemary oil protects testicular cells against DNA-damaging effects of H2O2 and DMNQ. Food Chem 2011. [DOI: 10.1016/j.foodchem.2011.04.020] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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The effect of ghrelin pretreatment on epididymal sperm quality and tissue antioxidant enzyme activities after testicular ischemia/reperfusion in rats. J Physiol Biochem 2011; 68:91-7. [DOI: 10.1007/s13105-011-0122-2] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2011] [Accepted: 09/20/2011] [Indexed: 11/25/2022]
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Ghafari S, Balajadeh BK, Golalipour MJ. Effect of Urtica dioica L. (Urticaceae) on testicular tissue in STZ-induced diabetic rats. Pak J Biol Sci 2011; 14:798-804. [PMID: 22545354 DOI: 10.3923/pjbs.2011.798.804] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Urtica dioica L. (Stinging nettle) has already been known for a long time as a medicinal plant in the world. This histopathological and morphometrical study was conducted to determine the effects of the hydroalcoholic extract of Urtica dioica leaves on testis of streptozotocin-induced diabetic rats. Eighteen male Wistar rats were allocated to equally normal, diabetic and treatment groups. Hyperglycemia was induced by Streptozotocin (80 mg kg(-1)) in animals of diabetic and treatment groups. One week after STZ injection (80 mg kg(-1)), the rats of treatment group received the extract of U. dioica (100 mg/kg/day) IP for 28 days. After 5 weeks of study, all the rats were sacrificed and testes were removed and fixed in bouin and after tissue processing stained with H and E technique. Tubular cell disintegration, sertoli and spermatogonia cell vacuolization and decrease in sperm concentration in seminiferous tubules were seen in diabetic and treatment groups group in comparison with control. External Seminiferous Tubular Diameter (STD) and Seminiferous Epithelial Height (SEH) significantly reduced (p < 0.05) in the diabetic rats compared with controls and these parameters in the treatment group were similar to diabetics animals. This study showed that hydroalcoholic extract of Urtica dioica leaves, after induction of diabetes; has no treatment effect on seminiferous tubules alterations in streptozotocin-induced diabetic rats.
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Affiliation(s)
- S Ghafari
- Department of Anatomical Sciences (Embryology and Histology), Golestan University of Medical Sciences, Gorgan, Iran
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