1
|
Bakshi S, Kaur M, Verma A, Sharma S. Molecular and cellular remodeling of HepG2 cells upon treatment with antitubercular drugs. J Biochem Mol Toxicol 2023; 37:e23386. [PMID: 37254945 DOI: 10.1002/jbt.23386] [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: 06/13/2022] [Revised: 02/20/2023] [Accepted: 05/17/2023] [Indexed: 06/01/2023]
Abstract
Drug-induced liver injury (DILI) is an adverse outcome of the currently used tuberculosis treatment regimen, which results in patient noncompliance, poor treatment outcomes, and the emergence of drug-resistant tuberculosis. DILI is primarily caused by the toxicity of the drugs and their metabolites, which affect liver cells, biliary epithelial cells, and liver vasculature. However, the precise mechanism behind the cellular damage attributable to first-line antitubercular drugs (ATDs), as well as the effect of toxicity on the cell survival strategies, is yet to be elucidated. In the current study, HepG2 cells upon treatment with a high concentration of ATDs showed increased perforation within the cell, cuboidal shape, and membrane blebbing as compared with control/untreated cells. It was observed that ATD-induced toxicity in HepG2 cells leads to altered mitochondrial membrane permeability, which was depicted by the decreased fluorescence intensity of the MitoRed tracker dye at higher drug concentrations. In addition, high doses of ATDs caused cell damage through an increase in reactive oxygen species production in HepG2 cells and a simultaneous reduction in glutathione levels. Further, high dose of isoniazid (50-200 mM), pyrazinamide (50-200 mM), and rifampicin (20-100 µM) causes cell apoptosis and affects cell survival during toxic conditions by decreasing the expression of potent autophagy markers Atg5, Atg7, and LC3B. Thus, ATD-mediated toxicity contributes to the reduced ability of hepatocytes to tolerate cellular damage caused by altered mitochondrial membrane permeability, increased apoptosis, and decreased autophagy. These findings further emphasize the need to develop adjuvant therapies that can mitigate ATD-induced toxicity for the effective treatment of tuberculosis.
Collapse
Affiliation(s)
- Shikha Bakshi
- Department of Biochemistry, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Maninder Kaur
- Department of Biochemistry, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Arpana Verma
- Department of Biochemistry, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Sadhna Sharma
- Department of Biochemistry, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| |
Collapse
|
2
|
Bakare AA, Moses VY, Beckely CT, Oluyemi TI, Ogunfeitimi GO, Adelaja AA, Ayorinde GT, Gbadebo AM, Fagbenro OS, Ogunsuyi OI, Ogunsuyi OM, Ige OM. The first-line antituberculosis drugs, and their fixed-dose combination induced abnormal sperm morphology and histological lesions in the testicular cells of male mice. Front Cell Dev Biol 2022; 10:1023413. [PMID: 36582470 PMCID: PMC9793334 DOI: 10.3389/fcell.2022.1023413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Accepted: 11/25/2022] [Indexed: 12/15/2022] Open
Abstract
Rifampicin (RIF), Isoniazid (INH), Ethambutol (EMB), Pyrazinamide (PZA), and/or their fixed-dose combination (FDC) are extensively prescribed in the cure of Tuberculosis (TB) globally. In spite of the beneficial effect, these drugs are capable of inducing cellular toxicity. Existing information on the genotoxic effects of the first-line anti-TB drugs is limited and contentious. Herein, we evaluated the reproductive genotoxicity of RIF, INH, EMB, PZA, and their FDC utilizing the mouse sperm morphology assay. Histological examination of the testes of exposed mice was also performed. Male Swiss albino mice (11-13 weeks old) were intraperitoneally exposed for 5 consecutive days to each of the anti-TB drugs at four different doses of 6.25, 12.5, 25, and 50 mg/kg bw of PZA; 2.5, 5.0, 10, and 20 mg/kg bw of RIF; 1.25, 2.5, 5.0 and 10 mg/kg bw of INH; 3.75, 7.5, 15 and 30 mg/kg bw of EMB; and 7, 14, 28 and 56 mg/kg bw of FDC corresponding respectively to ×0.25, ×0.5, ×1 and ×2.0 of the standard daily dose. In comparison with the negative control (normal saline), there was no significant difference in the testicular weight and organo-somatic index of exposed mice. There was an increase (p > 0.05) in the frequency of abnormal spermatozoa at most of the tested doses of each drug and a dose-dependent decrease with the FDC. Each of the anti-TB drugs except the FDC induced pathological lesions in the testes. These findings suggest that the individual first-line anti-TB drug unlike the FDC has the potential to provoke testicular anomalies in male mice.
Collapse
Affiliation(s)
- Adekunle A. Bakare
- Cell Biology and Genetics Unit, Department of Zoology, University of Ibadan, Ibadan, Nigeria,*Correspondence: Adekunle A. Bakare, ,
| | - Victoria Y. Moses
- Cell Biology and Genetics Unit, Department of Zoology, University of Ibadan, Ibadan, Nigeria
| | - Charles T. Beckely
- Cell Biology and Genetics Unit, Department of Zoology, University of Ibadan, Ibadan, Nigeria
| | - Toluwani I. Oluyemi
- Cell Biology and Genetics Unit, Department of Zoology, University of Ibadan, Ibadan, Nigeria
| | - Gift O. Ogunfeitimi
- Cell Biology and Genetics Unit, Department of Zoology, University of Ibadan, Ibadan, Nigeria
| | - Aduragbemi A. Adelaja
- Cell Biology and Genetics Unit, Department of Zoology, University of Ibadan, Ibadan, Nigeria
| | - Glory T. Ayorinde
- Cell Biology and Genetics Unit, Department of Zoology, University of Ibadan, Ibadan, Nigeria
| | | | - Olukunle S. Fagbenro
- Cell Biology and Genetics Unit, Department of Zoology, University of Ibadan, Ibadan, Nigeria
| | - Olusegun I. Ogunsuyi
- Department of Biological Sciences, College of Basic and Applied Sciences, Mountain Top University, Ibafo, Ogun State, Nigeria
| | - Opeoluwa M. Ogunsuyi
- Department of Cell Biology and Genetics, University of Lagos, Akoka, Lagos State, Nigeria
| | - Olusoji Mayowa Ige
- Department of Medicine, Faculty of Clinical Sciences, College of Medicine, University of Ibadan, Ibadan, Nigeria
| |
Collapse
|
3
|
Stephanie F, Tambunan USF, Siahaan TJ. M. tuberculosis Transcription Machinery: A Review on the Mycobacterial RNA Polymerase and Drug Discovery Efforts. Life (Basel) 2022; 12:1774. [PMID: 36362929 PMCID: PMC9695777 DOI: 10.3390/life12111774] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2022] [Revised: 10/24/2022] [Accepted: 11/01/2022] [Indexed: 09/08/2023] Open
Abstract
Mycobacterium tuberculosis (MTB) is the main source of tuberculosis (TB), one of the oldest known diseases in the human population. Despite the drug discovery efforts of past decades, TB is still one of the leading causes of mortality and claimed more than 1.5 million lives worldwide in 2020. Due to the emergence of drug-resistant strains and patient non-compliance during treatments, there is a pressing need to find alternative therapeutic agents for TB. One of the important areas for developing new treatments is in the inhibition of the transcription step of gene expression; it is the first step to synthesize a copy of the genetic material in the form of mRNA. This further translates to functional protein synthesis, which is crucial for the bacteria living processes. MTB contains a bacterial DNA-dependent RNA polymerase (RNAP), which is the key enzyme for the transcription process. MTB RNAP has been targeted for designing and developing antitubercular agents because gene transcription is essential for the mycobacteria survival. Initiation, elongation, and termination are the three important sequential steps in the transcription process. Each step is complex and highly regulated, involving multiple transcription factors. This review is focused on the MTB transcription machinery, especially in the nature of MTB RNAP as the main enzyme that is regulated by transcription factors. The mechanism and conformational dynamics that occur during transcription are discussed and summarized. Finally, the current progress on MTB transcription inhibition and possible drug target in mycobacterial RNAP are also described to provide insight for future antitubercular drug design and development.
Collapse
Affiliation(s)
- Filia Stephanie
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Indonesia, Depok 16424, Indonesia
| | - Usman Sumo Friend Tambunan
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Indonesia, Depok 16424, Indonesia
| | - Teruna J. Siahaan
- Department of Pharmaceutical Chemistry, School of Pharmacy, The University of Kansas, Lawrence, KS 66045, USA
| |
Collapse
|
4
|
Guo YQ, Zhang YJ, Pan YZ, Wu MY, Liu J, Yang W. Recent advances in research of modes of hepatocyte death in anti-tuberculosis drug-induced liver injury. Shijie Huaren Xiaohua Zazhi 2022; 30:817-822. [DOI: 10.11569/wcjd.v30.i18.817] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Antituberculosis drug-induced liver injury (ATB-DILI) is the most common and most serious side effect of antituberculous drug therapy, which brings great challenges to drug treatment of tuberculosis. Isoniazid and rifampicin as first-line anti-tuberculosis drugs produce a variety of toxic metabolites that directly cause liver cell necrosis, and a large amount of free radicals that induce oxidative stress, leading to programmed death of liver cells such as apoptosis, ferroptosis, and autophagy. Iron death is a recently discovered mode of cell death, and its role in ATB-DILI has not been fully elucidated. Blocking the pathway of hepatocyte death is an important means to treat ATB-DILI. In this paper, we discuss the mechanism and characteristics of different cell death modes in order to help identify new diagnostic markers and therapeutic drug targets.
Collapse
Affiliation(s)
- Yu-Qing Guo
- Department of Pharmacy, Hospital for Infectious Diseases, Soochow University, Suzhou 215131, Jiangsu Province, China
| | - Yi-Jie Zhang
- Department of Pharmacy, Hospital for Infectious Diseases, Soochow University, Suzhou 215131, Jiangsu Province, China
| | - Yun-Zhi Pan
- Department of Pharmacy, Hospital for Infectious Diseases, Soochow University, Suzhou 215131, Jiangsu Province, China
| | - Mei-Ying Wu
- Department of Pharmacy, Hospital for Infectious Diseases, Soochow University, Suzhou 215131, Jiangsu Province, China
| | - Jia Liu
- Department of Pharmacy, Hospital for Infectious Diseases, Soochow University, Suzhou 215131, Jiangsu Province, China
| | - Wei Yang
- Department of Pharmacy, Hospital for Infectious Diseases, Soochow University, Suzhou 215131, Jiangsu Province, China
| |
Collapse
|
5
|
Gobis K, Szczesio M, Olczak A, Korona-Głowniak I, Augustynowicz-Kopeć E, Mazernt-Politowicz I, Ziembicka D, Główka ML. Differences in the Structure and Antimicrobial Activity of Hydrazones Derived from Methyl 4-Phenylpicolinimidate. MATERIALS 2022; 15:ma15093085. [PMID: 35591419 PMCID: PMC9103619 DOI: 10.3390/ma15093085] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Revised: 04/13/2022] [Accepted: 04/20/2022] [Indexed: 12/10/2022]
Abstract
Four novel methyl 4-phenylpicolinoimidate derivatives of hydrazone have been synthesized and evaluated for their antimicrobial activity, including tuberculostatic activity. The compounds obtained are condensates of hydrazonamide or hydrazide with 5-nitro-2-furaldehyde or 5-nitro-2-thiophenecarboxaldehyde. The antimicrobial activity of the tested compounds varied. Compound 3b exhibited significant activity against the tested Gram-positive bacteria (7.8–250 µg/mL). The results of structural tests revealed that the compound is the only one obtained in the form of a Z isomer. Tuberculostatic activity tests showed higher activity of derivatives 3a and 4a containing nitrofuran systems (MICs 3.1–12.5 µg/mL). This research allowed us to identify hydrazone 3b as a starting point for further optimization in the search for antimicrobial drugs. Likewise, compound 4a appears to be a good guiding structure for use in future research on new anti-tuberculosis drugs.
Collapse
Affiliation(s)
- Katarzyna Gobis
- Department of Organic Chemistry, Medical University of Gdańsk, 107 Gen. Hallera Av., 80-438 Gdansk, Poland;
- Correspondence: ; Tel.: +48-58-349-16-47
| | - Małgorzata Szczesio
- Institute of General and Ecological Chemistry, Faculty of Chemistry, Lodz University of Technology, Zeromskiego 116, 90-924 Lodz, Poland; (M.S.); (A.O.); (I.M.-P.); (M.L.G.)
| | - Andrzej Olczak
- Institute of General and Ecological Chemistry, Faculty of Chemistry, Lodz University of Technology, Zeromskiego 116, 90-924 Lodz, Poland; (M.S.); (A.O.); (I.M.-P.); (M.L.G.)
| | - Izabela Korona-Głowniak
- Department of Pharmaceutical Microbiology, Faculty of Pharmacy, Medical University of Lublin, 1 Chodźki Str., 20-093 Lublin, Poland;
| | - Ewa Augustynowicz-Kopeć
- Department of Microbiology, National Tuberculosis and Lung Diseases Research Institute, 26 Płocka Str., 01-138 Warsaw, Poland;
| | - Ida Mazernt-Politowicz
- Institute of General and Ecological Chemistry, Faculty of Chemistry, Lodz University of Technology, Zeromskiego 116, 90-924 Lodz, Poland; (M.S.); (A.O.); (I.M.-P.); (M.L.G.)
| | - Dagmara Ziembicka
- Department of Organic Chemistry, Medical University of Gdańsk, 107 Gen. Hallera Av., 80-438 Gdansk, Poland;
| | - Marek L. Główka
- Institute of General and Ecological Chemistry, Faculty of Chemistry, Lodz University of Technology, Zeromskiego 116, 90-924 Lodz, Poland; (M.S.); (A.O.); (I.M.-P.); (M.L.G.)
| |
Collapse
|
6
|
Host bioenergetic parameters reveal cytotoxicity of anti-tuberculosis drugs undetected using conventional viability assays. Antimicrob Agents Chemother 2021; 65:e0093221. [PMID: 34339269 PMCID: PMC8448146 DOI: 10.1128/aac.00932-21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
High attrition rates in tuberculosis (TB) drug development have been largely attributed to safety, which is likely due to the use of endpoint assays measuring cell viability to detect drug cytotoxicity. In drug development for cancer, metabolic, and neurological disorders and for antibiotics, cytotoxicity is increasingly being assessed using extracellular flux (XF) analysis, which measures cellular bioenergetic metabolism in real time. Here, we adopt the XF platform to investigate the cytotoxicity of drugs currently used in TB treatment on the bioenergetic metabolism of HepG2 cells, THP-1 macrophages, and human monocyte-derived macrophages (hMDMs). We found that the XF analysis reveals earlier drug-induced effects on the cells’ bioenergetic metabolism prior to cell death, measured by conventional viability assays. Furthermore, each cell type has a distinct response to drug treatment, suggesting that more than one cell type should be considered to examine cytotoxicity in TB drug development. Interestingly, chemically unrelated drugs with different modes of action on Mycobacterium tuberculosis have similar effects on the bioenergetic parameters of the cells, thus discouraging the prediction of potential cytotoxicity based on chemical structure and mode of action of new chemical entities. The clustering of the drug-induced effects on the hMDM bioenergetic parameters are reflected in the clustering of the effects of the drugs on cytokine production in hMDMs, demonstrating concurrence between the effects of the drugs on the metabolism and functioning of the macrophages. These findings can be used as a benchmark to establish XF analysis as a new tool to assay cytotoxicity in TB drug development.
Collapse
|
7
|
Antituberculosis Drugs (Rifampicin and Isoniazid) Induce Liver Injury by Regulating NLRP3 Inflammasomes. Mediators Inflamm 2021; 2021:8086253. [PMID: 33688304 PMCID: PMC7914095 DOI: 10.1155/2021/8086253] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2020] [Revised: 01/13/2021] [Accepted: 01/23/2021] [Indexed: 02/07/2023] Open
Abstract
Patients being treated for pulmonary tuberculosis often suffer liver injury due to the effects of anti-TB drugs, and the underlying mechanisms for those injuries need to be clarified. In this study, rats and hepatic cells were administrated isoniazid (INH) and rifampin (RIF) and then treated with NLRP3-inflammasome inhibitors (INF39 and CP-456773) or NLRP3 siRNA. Histopathological changes that occurred in liver tissue were examined by H&E staining. Additionally, the levels IL-33, IL-18, IL-1β, NLRP3, ASC, and cleaved-caspase 1 expression in the liver tissues were also determined. NAT2 and CYP2E1 expression were identified by QRT-PCR analysis. Finally, in vitro assays were performed to examine the effects of siRNA targeting NLRP3. Treatment with the antituberculosis drugs caused significant liver injuries, induced inflammatory responses and oxidative stress (OS), activated NLRP3 inflammasomes, reduced the activity of drug-metabolizing enzymes, and altered the antioxidant defense system in rats and hepatic cells. The NLRP3 inflammasome was required for INH- and RIF-induced liver injuries that were produced by inflammatory responses, OS, the antioxidant defense system, and drug-metabolizing enzymes. This study indicated that the NLRP3 inflammasome is involved in antituberculosis drug-induced liver injuries (ATLIs) and suggests NLRP3 as a potential target for attenuating the inflammation response in ATLIs.
Collapse
|
8
|
Guevara Salazar JA, Morán Díaz JR, Ramírez Segura E, Trujillo Ferrara JG. What are the origins of growing microbial resistance? Both Lamarck and Darwin were right. Expert Rev Anti Infect Ther 2020; 19:563-569. [PMID: 33073640 DOI: 10.1080/14787210.2021.1839418] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
INTRODUCTION Microorganisms of clinical importance frequently develop resistance to drug therapy, now a growing problem. The experience with Mycobacterium tuberculosis is a representative example of increasing multi-drug resistance. To avoid reaching a crisis in which patients could be left without adequate treatment, a new strategy is needed. Anti-microbial therapy has historically targeted the mechanisms rather than origin of drug resistance, thus allowing microorganisms to adapt and survive. AREAS COVERED This contribution analyses the historical development (1943-2020) of the evolution of multi-drug resistance by M. tuberculosis strains in light of Darwin's and Lamarck's theories of evolution. EXPERT OPINION Regarding the molecular origin of microbial drug resistance, genetic mutations and epigenetic modifications are known to participate. The analysis of the history of drug resistance by M. tuberculosis evidences a gradual development of resistance to some antibiotics, undoubtedly due to random mutations together with natural selection based on environmental pressures (e.g., antibiotics), representing Darwin's idea. More rapid adaptation of M. tuberculosis to new antibiotic treatments has also occurred, probably because of heritable acquired characteristics, evidencing Lamarck's proposal. Therefore, microbial infections should be treated with an antibiotic producing null or low mutagenic activity along with a resistance inhibitor, preferably in a single medication.
Collapse
Affiliation(s)
- Juan Alberto Guevara Salazar
- Departamento De Farmacología, Escuela Superior De Medicina, Instituto Politécnico Nacional, Ciudad De México, CDMX, Mexico
| | - Jessica Rubí Morán Díaz
- Departamento De Farmacología, Escuela Superior De Medicina, Instituto Politécnico Nacional, Ciudad De México, CDMX, Mexico
| | - Enrique Ramírez Segura
- Laboratorio De Bioquímica Médica, Escuela Superior De Medicina, Instituto Politécnico Nacional, Ciudad De México, CDMX, Mexico
| | - José Guadalupe Trujillo Ferrara
- Laboratorio De Bioquímica Médica, Escuela Superior De Medicina, Instituto Politécnico Nacional, Ciudad De México, CDMX, Mexico
| |
Collapse
|
9
|
John P, Kale PP. Prominence of Oxidative Stress in the Management of Anti-tuberculosis Drugs Related Hepatotoxicity. Drug Metab Lett 2019; 13:95-101. [PMID: 31333143 DOI: 10.2174/1872312813666190716155930] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Revised: 05/08/2019] [Accepted: 06/03/2019] [Indexed: 06/10/2023]
Abstract
Advanced medical services and treatments are available for treating Tuberculosis. Related prevalence has increased in recent times. Unfortunately, the continuous consumption of related drugs is also known for inducing hepatotoxicity which is a critical condition and cannot be overlooked. The present review article has focused on the pathways causing these toxicities and also the role of enzyme CYP2E1, hepatic glutathione, Nrf2-ARE signaling pathway, and Membrane Permeability Transition as possible targets which may help in preventing the hepatotoxicity induced by the drugs used in the treatment of tuberculosis.
Collapse
Affiliation(s)
- Preena John
- Department of Pharmacology, SVKM's Dr. Bhanuben Nanavati College of Pharmacy, Vile Parle, Mumbai-400056, Maharashtra, India
| | - Pravin P Kale
- Department of Pharmacology, SVKM's Dr. Bhanuben Nanavati College of Pharmacy, Vile Parle, Mumbai-400056, Maharashtra, India
| |
Collapse
|
10
|
Attiq A, Ashraf M, Jalil J, Javeed A, Anjum AA, Ullah A, Umair M, Ali S. Augmented cytotoxic, mutagenic and genotoxic response triggered by carvedilol and celecoxib combinations. BRAZ J PHARM SCI 2018. [DOI: 10.1590/s2175-97902018000117292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Affiliation(s)
- Ali Attiq
- Universiti Kebangsaan Malaysia, Malaysia
| | | | | | - Aqeel Javeed
- University of Veterinary and Animal Sciences, Pakistan
| | | | - Asad Ullah
- University of Veterinary and Animal Sciences, Pakistan
| | | | - Sarwat Ali
- University of Veterinary and Animal Sciences, Pakistan
| |
Collapse
|
11
|
Rao A, Nayak G, Kumari S, Prabhu AD, Khandige N, Kalthur SG, Mutalik S, Kalthur G, Adiga SK. Ethambutol induces testicular damage and decreases the sperm functional competence in Swiss albino mice. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2016; 47:28-37. [PMID: 27579587 DOI: 10.1016/j.etap.2016.08.012] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2016] [Revised: 08/10/2016] [Accepted: 08/12/2016] [Indexed: 06/06/2023]
Abstract
The present study reports the effect of ethambutol (EMB) on testicular function. Prepubertal and adult male Swiss albino mice were treated with 40, 80, 160mg/kg body weight of EMB, intraperitoneally, every alternate day for 4 weeks. After 2 weeks gap, mice were sacrificed to collect caudal spermatozoa. EMB treatment resulted in a dose-dependent decrease in the testicular weight, sperm count and motility while the percentage of sperm with head abnormalities, immature chromatin (P<0.001) and DNA damage increased (P<0.01). In addition, EMB treatment resulted in significant depletion of glutathione (P<0.05-P<0.01) and histopathological abnormalities such as large cells, vacuolation of tubules and isolated colonies of spermatogenic cells were observed. Oct4, 17β-Hsd and c-Kit mRNA was marginally elevated in EMB treated testes at the highest dose studied. In conclusion, the result of the present study indicates that EMB has adverse effect on testicular function and impairs the sperm functional competence.
Collapse
Affiliation(s)
- Arpitha Rao
- Department of Clinical Embryology, Level 2, Central Research Lab., Manipal 576104, Karnataka, India
| | - Guruprasad Nayak
- Department of Clinical Embryology, Level 2, Central Research Lab., Manipal 576104, Karnataka, India
| | - Sandhya Kumari
- Department of Clinical Embryology, Level 2, Central Research Lab., Manipal 576104, Karnataka, India
| | - Amratha D Prabhu
- Department of Clinical Embryology, Level 2, Central Research Lab., Manipal 576104, Karnataka, India
| | - Nalini Khandige
- Department of Biochemistry, Manipal 576104, Karnataka, India
| | | | - Srinivas Mutalik
- Manipal College of Pharmaceutical Sciences, Manipal University, Manipal 576104, Karnataka, India
| | - Guruprasad Kalthur
- Department of Clinical Embryology, Level 2, Central Research Lab., Manipal 576104, Karnataka, India.
| | - Satish Kumar Adiga
- Department of Clinical Embryology, Level 2, Central Research Lab., Manipal 576104, Karnataka, India
| |
Collapse
|
12
|
Hassan HM, Guo HL, Yousef BA, Luyong Z, Zhenzhou J. Hepatotoxicity mechanisms of isoniazid: A mini-review. J Appl Toxicol 2015; 35:1427-32. [DOI: 10.1002/jat.3175] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2015] [Accepted: 04/17/2015] [Indexed: 12/25/2022]
Affiliation(s)
- Hozeifa M. Hassan
- Jiangsu Key Laboratory of Drug Screening; China Pharmaceutical University; Nanjing China
- Department of Pharmacology, Faculty of Pharmacy; University of Gezira; Wad-Medani Sudan
| | - Hong-li Guo
- Jiangsu Key Laboratory of Drug Screening; China Pharmaceutical University; Nanjing China
| | - Bashir A. Yousef
- Jiangsu Key Laboratory of Drug Screening; China Pharmaceutical University; Nanjing China
- Department of Pharmacology, Faculty of Pharmacy; University of Khartoum; Khartoum Sudan
| | - Zhang Luyong
- Jiangsu Key Laboratory of Drug Screening; China Pharmaceutical University; Nanjing China
- Jiangsu Center for Pharmacodynamics Research and Evaluation; China Pharmaceutical University; Nanjing China
- Jiangsu Key Laboratory of TCM Evaluation and Translational Research; China Pharmaceutical University; Nanjing China
| | - Jiang Zhenzhou
- Jiangsu Key Laboratory of Drug Screening; China Pharmaceutical University; Nanjing China
- Key Laboratory of Drug Quality Control and Pharmacovigilance (China Pharmaceutical University); Ministry of Education; Nanjing China
- State Key Laboratory of Natural Medicines; China Pharmaceutical University; Nanjing China
| |
Collapse
|
13
|
Gobis K, Foks H, Suchan K, Augustynowicz-Kopeć E, Napiórkowska A, Bojanowski K. Novel 2-(2-phenalkyl)-1H-benzo[d]imidazoles as antitubercular agents. Synthesis, biological evaluation and structure–activity relationship. Bioorg Med Chem 2015; 23:2112-20. [DOI: 10.1016/j.bmc.2015.03.008] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2015] [Revised: 02/26/2015] [Accepted: 03/02/2015] [Indexed: 10/23/2022]
|
14
|
|
15
|
Huang J, Li W, Li Y, Luo C, Zeng Y, Xu Y, Zhou J. Generation of uniform polymer eccentric and core-centered hollow microcapsules for ultrasound-regulated drug release. J Mater Chem B 2014; 2:6848-6854. [DOI: 10.1039/c4tb01050g] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Uniform polydimethylsiloxane microcapsules with eccentric and core-centered internal hollow structures show controlled-release behaviour for site-specific drug delivery under ultrasound regulation.
Collapse
Affiliation(s)
- Jingxian Huang
- Biomedical Engineering Department
- School of Engineering
- Sun Yat-sen University
- Guangzhou 510006, China
| | - Wanbo Li
- Biomedical Engineering Department
- School of Engineering
- Sun Yat-sen University
- Guangzhou 510006, China
| | - Yan Li
- Biomedical Engineering Department
- School of Engineering
- Sun Yat-sen University
- Guangzhou 510006, China
| | - Chongdai Luo
- Biomedical Engineering Department
- School of Engineering
- Sun Yat-sen University
- Guangzhou 510006, China
| | - Yecheng Zeng
- School of Pharmaceutical Science
- Sun Yat-sen University
- Guangzhou 510006, China
| | - Yuehong Xu
- School of Pharmaceutical Science
- Sun Yat-sen University
- Guangzhou 510006, China
| | - Jianhua Zhou
- Biomedical Engineering Department
- School of Engineering
- Sun Yat-sen University
- Guangzhou 510006, China
| |
Collapse
|