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Mohammed SAD, Liu H, Baldi S, Wang Y, Chen P, Lu F, Liu S. Antihypertensive, antioxidant, and renal protective impact of integrated GJD with captopril in spontaneously hypertensive rats. Sci Rep 2023; 13:10944. [PMID: 37414816 PMCID: PMC10326066 DOI: 10.1038/s41598-023-38020-0] [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: 02/06/2023] [Accepted: 06/30/2023] [Indexed: 07/08/2023] Open
Abstract
Hypertension is the most prevalent chronic disease World-wide, and the leading preventable risk factor for cardiovascular disease (CVD). Few patients accomplish the objective of decreasing blood pressure and avoiding hypertensive target organ damage after treatments with antihypertensive agents which opens the door for other treatments, such as herbal-and antihypertensive combination therapy. Captopril (CAP), as a-pril which inhibits angiotensin converting enzyme has long been used in the management of hypertension and CVD. Gedan Jiangya Decoction (GJD) is known for antihypertensive effects in prior studies. The research is aimed to determine whether GJD in combination with captopril has antihypertensive, kidney protective, antioxidant, and vasoactive effects in spontaneously hypertensive rats (SHR). Regular measurements of systolic and diastolic blood pressure (SBP and DBP), and body weight were monitored weekly. H&E staining was utilized to examine histopathology. The combined effects were studied using ELISA, immunohistochemistry, and qRT-PCR. Significant reductions in SBP, DBP, aortic wall thickness, and improvement in renal tissue were observed following GJD + CAP treatment, with increased serum levels of NO, SOD, GSH-Px, and CAT and decreases in Ang II, ET-1, and MDA. Similarly, GJD + CAP treatment of SHR's significantly decreased ET-1 and AGTR1 mRNA and protein expression while increasing eNOS mRNA and protein expression in thoracic aorta and kidney tissue. In conclusion, the present investigation found that GJD + CAP treatment decreases SHR blood pressure, improves aorta remodeling and renal protection, and that this effect could be attributable, in part, due to antioxidant and vascular tone improvement.
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Affiliation(s)
- Shadi A D Mohammed
- Graduate School of Heilongjiang University of Chinese Medicine, Harbin, 150040, Heilongjiang, China
- School of Pharmacy, Lebanese International University, 18644, Sana'a, Yemen
| | - Hanxing Liu
- Graduate School of Heilongjiang University of Chinese Medicine, Harbin, 150040, Heilongjiang, China
| | - Salem Baldi
- Research Center of Molecular Diagnostics and Sequencing, Axbio Biotechnology (Shenzhen) Co., Ltd., Shenzhen, 518057, Guangdong, China
| | - Yu Wang
- Institute of Traditional Chinese Medicine, Heilongjiang University of Chinese Medicine, Harbin, 150040, Heilongjiang, China
| | - Pingping Chen
- Institute of Traditional Chinese Medicine, Heilongjiang University of Chinese Medicine, Harbin, 150040, Heilongjiang, China
| | - Fang Lu
- Institute of Traditional Chinese Medicine, Heilongjiang University of Chinese Medicine, Harbin, 150040, Heilongjiang, China
| | - Shumin Liu
- Institute of Traditional Chinese Medicine, Heilongjiang University of Chinese Medicine, Harbin, 150040, Heilongjiang, China.
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Choi JG, Choi SR, Kang DW, Shin HJ, Lee M, Hwang J, Kim HW. Inhibition of angiotensin converting enzyme increases PKCβI isoform expression via activation of substance P and bradykinin receptors in cultured astrocytes of mice. J Vet Sci 2023; 24:e26. [PMID: 37012034 PMCID: PMC10071283 DOI: 10.4142/jvs.22275] [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: 11/24/2022] [Revised: 01/10/2023] [Accepted: 02/14/2023] [Indexed: 03/11/2023] Open
Abstract
BACKGROUND Angiotensin-converting enzyme inhibitor (ACEi) inhibits the catalysis of angiotensin I to angiotensin II and the degradation of substance P (SP) and bradykinin (BK). While the possible relationship between ACEi and SP in nociceptive mice was recently suggested, the effect of ACEi on signal transduction in astrocytes remains unclear. OBJECTIVES This study examined whether ACE inhibition with captopril or enalapril modulates the levels of SP and BK in primary cultured astrocytes and whether this change modulates PKC isoforms (PKCα, PKCβI, and PKCε) expression in cultured astrocytes. METHODS Immunocytochemistry and Western blot analysis were performed to examine the changes in the levels of SP and BK and the expression of the PKC isoforms in primary cultured astrocytes, respectively. RESULTS The treatment of captopril or enalapril increased the immunoreactivity of SP and BK significantly in glial fibrillary acidic protein-positive cultured astrocytes. These increases were suppressed by a pretreatment with an angiotensin-converting enzyme. In addition, treatment with captopril increased the expression of the PKCβI isoform in cultured astrocytes, while there were no changes in the expression of the PKCα and PKCε isoforms after the captopril treatment. The captopril-induced increased expression of the PKCβI isoform was inhibited by a pretreatment with the neurokinin-1 receptor antagonist, L-733,060, the BK B1 receptor antagonist, R 715, or the BK B2 receptor antagonist, HOE 140. CONCLUSIONS These results suggest that ACE inhibition with captopril or enalapril increases the levels of SP and BK in cultured astrocytes and that the activation of SP and BK receptors mediates the captopril-induced increase in the expression of the PKCβI isoform.
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Affiliation(s)
- Jae-Gyun Choi
- Department of Physiology and Medical Science, College of Medicine and Brain Research Institute, Chungnam National University, Daejeon 35015, Korea
| | - Sheu-Ran Choi
- Department of Pharmacology, Catholic Kwandong University College of Medicine, Gangneung 25601, Korea
| | - Dong-Wook Kang
- Department of Physiology and Medical Science, College of Medicine and Brain Research Institute, Chungnam National University, Daejeon 35015, Korea
| | - Hyun Jin Shin
- Department of Physiology and Medical Science, College of Medicine and Brain Research Institute, Chungnam National University, Daejeon 35015, Korea
| | - Miae Lee
- Department of Physiology and Medical Science, College of Medicine and Brain Research Institute, Chungnam National University, Daejeon 35015, Korea
| | - Jungmo Hwang
- Department of Orthopaedic Surgery, College of Medicine, Chungnam National University, Daejeon 35015, Korea.
| | - Hyun-Woo Kim
- Department of Physiology and Medical Science, College of Medicine and Brain Research Institute, Chungnam National University, Daejeon 35015, Korea.
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Zhang Z, Dalan R, Hu Z, Wang JW, Chew NW, Poh KK, Tan RS, Soong TW, Dai Y, Ye L, Chen X. Reactive Oxygen Species Scavenging Nanomedicine for the Treatment of Ischemic Heart Disease. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2202169. [PMID: 35470476 DOI: 10.1002/adma.202202169] [Citation(s) in RCA: 34] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Revised: 04/08/2022] [Indexed: 06/14/2023]
Abstract
Ischemic heart disease (IHD) is the leading cause of disability and mortality worldwide. Reactive oxygen species (ROS) have been shown to play key roles in the progression of diabetes, hypertension, and hypercholesterolemia, which are independent risk factors that lead to atherosclerosis and the development of IHD. Engineered biomaterial-based nanomedicines are under extensive investigation and exploration, serving as smart and multifunctional nanocarriers for synergistic therapeutic effect. Capitalizing on cell/molecule-targeting drug delivery, nanomedicines present enhanced specificity and safety with favorable pharmacokinetics and pharmacodynamics. Herein, the roles of ROS in both IHD and its risk factors are discussed, highlighting cardiovascular medications that have antioxidant properties, and summarizing the advantages, properties, and recent achievements of nanomedicines that have ROS scavenging capacity for the treatment of diabetes, hypertension, hypercholesterolemia, atherosclerosis, ischemia/reperfusion, and myocardial infarction. Finally, the current challenges of nanomedicines for ROS-scavenging treatment of IHD and possible future directions are discussed from a clinical perspective.
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Affiliation(s)
- Zhan Zhang
- Cancer Centre and Institute of Translational Medicine, Faculty of Health Sciences, University of Macau, Taipa, Macau SAR, 999078, China
| | - Rinkoo Dalan
- Department of Endocrinology, Tan Tock Seng Hospital, Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore, 408433, Singapore
| | - Zhenyu Hu
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117597, Singapore
| | - Jiong-Wei Wang
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117597, Singapore
- Cardiovascular Research Institute, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117597, Singapore
- Department of Diagnostic Radiology and Department of Surgery, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117597, Singapore
- Nanomedicine Translational Research Programme, Centre for NanoMedicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117597, Singapore
| | - Nicholas Ws Chew
- Department of Cardiology, National University Heart Centre, National University Hospital, Singapore, 119074, Singapore
| | - Kian-Keong Poh
- Department of Cardiology, National University Heart Centre, National University Hospital, Singapore, 119074, Singapore
| | - Ru-San Tan
- Department of Cardiology, National Heart Centre Singapore, Singapore, 119609, Singapore
| | - Tuck Wah Soong
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117597, Singapore
| | - Yunlu Dai
- Cancer Centre and Institute of Translational Medicine, Faculty of Health Sciences, University of Macau, Taipa, Macau SAR, 999078, China
- MoE Frontiers Science Center for Precision Oncology, University of Macao, Taipa, Macau SAR, 999078, China
| | - Lei Ye
- Department of Biomedical Engineering, University of Alabama at Birmingham, Birmingham, AL, 35294, USA
| | - Xiaoyuan Chen
- Department of Diagnostic Radiology and Department of Surgery, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117597, Singapore
- Nanomedicine Translational Research Programme, Centre for NanoMedicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117597, Singapore
- Department of Chemical and Biomolecular Engineering and Department of Biomedical Engineering, Faculty of Engineering, National University of Singapore, Singapore, 117597, Singapore
- Clinical Imaging Research Centre, Centre for Translational Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117597, Singapore
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dos Santos LLM, Alves MG, Chies AB, Spadella MA. Losartan Attenuates Radiation-Induced Damage on Testes and Accelerates Tubular Regeneration. FRONTIERS IN REPRODUCTIVE HEALTH 2022; 4:904804. [PMID: 36303628 PMCID: PMC9580693 DOI: 10.3389/frph.2022.904804] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Accepted: 06/10/2022] [Indexed: 11/23/2022] Open
Abstract
Male germ cells are particularly susceptible to radiation; infertility being a common consequence after radiotherapy as it impairs spermatogenesis. This study aimed to test whether treatment with losartan (LOS), a selective antagonist of angiotensin II receptor subtype 1 (AT1R), can prevent or attenuate the acute and long-term radiation-induced damage to testes. Wistar rats were randomly distributed into six groups, three of which were studied on day 2 after irradiation: control (CTRL 2), irradiated non-treated (IR 2), and irradiated and treated with LOS (IRLOS 2); and three other groups that were studied on day 60 after irradiation: control (CTRL 60), irradiated non-treated (IR 60), and irradiated and treated with LOS (IRLOS 60). Seven consecutive days before and on the day of irradiation with 2.5 Gy directly administered in the scrotum, the animals were treated with LOS (34 mg/kg/two times/day). This treatment was continued 2 or 60 days after irradiation. The sperm quality was assessed from epididymis cauda. In addition, the testes were submitted to histopathological and morphometric-stereological analysis as well as the proliferating cell nuclear antigen (PCNA) quantification. Serum FSH and LH and plasma testosterone levels were also determined. The data obtained 2 days after the irradiation showed germ cell apoptosis, formation of vacuoles in the seminiferous epithelium, sloughing of germ cells into the lumen, and retention and phagocytosis of step-19 spermatids in Sertoli basal cytoplasm. The treatment with LOS in this period did not prevent or attenuate a radio-induced damage to the testes, illustrating that this drug does not protect against apoptosis derived from direct effects of radiation. On the other hand, 60 days after exposure, the data evidenced the deleterious effects of ionizing radiation on the testes as decreasing of testicular, epididymal, and seminal vesicle masses; tubular atrophy; reduction of cellular proliferation; and loss of germ cells. LOS was able to prevent some of those deleterious effects, promoting improvements in seminal vesicle mass, sperm vitality, plasma testosterone levels, vacuole number, and cell proliferation. In conclusion, inhibition of the AngII/AT1R axis by LOS is effective in protecting the indirect/delayed radiation damage resulting from oxidative stress established in the tissue.
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Affiliation(s)
| | - Marco G. Alves
- Unit for Multidisciplinary Research in Biomedicine (UMIB) and Institute of Biomedical Sciences Abel Salazar, University of Porto, Porto, Portugal
- Biotechnology of Animal and Human Reproduction (TechnoSperm), Institute of Food and Agricultural Technology and Unit of Cell Biology, Department of Biology, Faculty of Sciences, University of Girona, Girona, Spain
| | - Agnaldo Bruno Chies
- Laboratory of Pharmacology, Marília Medical School – FAMEMA, Marília, Brazil
| | - Maria Angélica Spadella
- Laboratory of Human Embryology, Marília Medical School – FAMEMA, Marília, Brazil
- *Correspondence: Maria Angélica Spadella
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The Effect of Enalapril, Losartan, or Not Antihypertensive on the Oxidative Status in Renal Transplant Recipients. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:5622626. [PMID: 35308174 PMCID: PMC8930264 DOI: 10.1155/2022/5622626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 11/22/2021] [Accepted: 12/11/2021] [Indexed: 11/25/2022]
Abstract
The clinical and biochemical improvement observed in kidney transplant (RT) recipients is remarkable. The correct functioning of the allograft depends on various factors such as the donor's age, the alloimmune response, the ischemia-reperfusion injury, arterial hypertension, and the interstitial fibrosis of the allograft, among others. Antihypertensive drugs are necessary for arterial hypertension patients to avoid or reduce the probability of affecting graft function in RT recipients. Oxidative stress (OS) is another complex pathophysiological process with the ability to alter posttransplant kidney function. The study's objective was to determine the effect of the administration of Enalapril, Losartan, or not antihypertensive medication on the oxidative state in RT recipients at the beginning of the study and one year of follow-up. All patients included in the study found significant overexpression of the oxidative damage marker to DNA and the antioxidant enzymes superoxide dismutase (SOD) and glutathione peroxidase (GPx). In contrast, it was found that the determination of the total antioxidant capacity decreased significantly in the final determination at one year of follow-up in all the patients who ingested Enalapril and Losartan. We found dysregulation of the oxidative state characterized mainly by oxidative damage to DNA and a significant increase in antioxidant enzymes, which could suggest a compensatory effect against the imbalance of the oxidative state.
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Cai S, Pan N, Xu M, Su Y, Qiao K, Chen B, Zheng B, Xiao M, Liu Z. ACE Inhibitory Peptide from Skin Collagen Hydrolysate of Takifugu bimaculatus as Potential for Protecting HUVECs Injury. Mar Drugs 2021; 19:md19120655. [PMID: 34940654 PMCID: PMC8703921 DOI: 10.3390/md19120655] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 11/20/2021] [Accepted: 11/22/2021] [Indexed: 12/21/2022] Open
Abstract
Angiotensin-I-converting enzyme (ACE) is a crucial enzyme or receptor that catalyzes the generation of potent vasopressor angiotensin II (Ang II). ACE inhibitory peptides from fish showed effective ACE inhibitory activity. In this study, we reported an ACE inhibitory peptide from Takifugu bimaculatus (T. bimaculatus), which was obtained by molecular docking with acid-soluble collagen (ASC) hydrolysate of T. bimaculatus. The antihypertensive effects and potential mechanism were conducted using Ang-II-induced human umbilical vein endothelial cells (HUVECs) as a model. The results showed that FNLRMQ alleviated the viability and facilitated apoptosis of Ang-II-induced HUVECs. Further research suggested that FNLRMQ may protect Ang-II-induced endothelial injury by regulating Nrf2/HO-1 and PI3K/Akt/eNOS signaling pathways. This study, herein, reveals that collagen peptide FNLRMQ could be used as a potential candidate compound for antihypertensive treatment, and could provide scientific evidence for the high-value utilization of marine resources including T. bimaculatus.
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Affiliation(s)
- Shuilin Cai
- College of Chemical Engineering, Huaqiao University, Xiamen 361021, China; (S.C.); (Y.S.)
- Key Laboratory of Cultivation and High-value Utilization of Marine Organisms in Fujian Province, Fisheries Research Institute of Fujian, Xiamen 361013, China; (N.P.); (M.X.); (K.Q.); (B.C.)
| | - Nan Pan
- Key Laboratory of Cultivation and High-value Utilization of Marine Organisms in Fujian Province, Fisheries Research Institute of Fujian, Xiamen 361013, China; (N.P.); (M.X.); (K.Q.); (B.C.)
| | - Min Xu
- Key Laboratory of Cultivation and High-value Utilization of Marine Organisms in Fujian Province, Fisheries Research Institute of Fujian, Xiamen 361013, China; (N.P.); (M.X.); (K.Q.); (B.C.)
- College of Food and Biological Engineering, Jimei University, Xiamen 361021, China
| | - Yongchang Su
- College of Chemical Engineering, Huaqiao University, Xiamen 361021, China; (S.C.); (Y.S.)
- Key Laboratory of Cultivation and High-value Utilization of Marine Organisms in Fujian Province, Fisheries Research Institute of Fujian, Xiamen 361013, China; (N.P.); (M.X.); (K.Q.); (B.C.)
| | - Kun Qiao
- Key Laboratory of Cultivation and High-value Utilization of Marine Organisms in Fujian Province, Fisheries Research Institute of Fujian, Xiamen 361013, China; (N.P.); (M.X.); (K.Q.); (B.C.)
| | - Bei Chen
- Key Laboratory of Cultivation and High-value Utilization of Marine Organisms in Fujian Province, Fisheries Research Institute of Fujian, Xiamen 361013, China; (N.P.); (M.X.); (K.Q.); (B.C.)
| | - Bingde Zheng
- College of Chemical Engineering, Huaqiao University, Xiamen 361021, China; (S.C.); (Y.S.)
- Correspondence: (B.Z.); (M.X.); (Z.L.)
| | - Meitian Xiao
- College of Chemical Engineering, Huaqiao University, Xiamen 361021, China; (S.C.); (Y.S.)
- Correspondence: (B.Z.); (M.X.); (Z.L.)
| | - Zhiyu Liu
- Key Laboratory of Cultivation and High-value Utilization of Marine Organisms in Fujian Province, Fisheries Research Institute of Fujian, Xiamen 361013, China; (N.P.); (M.X.); (K.Q.); (B.C.)
- Correspondence: (B.Z.); (M.X.); (Z.L.)
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Asaad GF, Hassan A, Mostafa RE. Anti-oxidant impact of Lisinopril and Enalapril against acute kidney injury induced by doxorubicin in male Wistar rats: involvement of kidney injury molecule-1. Heliyon 2021; 7:e05985. [PMID: 33506137 PMCID: PMC7814155 DOI: 10.1016/j.heliyon.2021.e05985] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2020] [Revised: 11/18/2020] [Accepted: 01/11/2021] [Indexed: 01/08/2023] Open
Abstract
Doxorubicin (DOX) is a standard anticancer agent exerting devastating effects as nephrotoxicity, hepatotoxicity and cardiotoxicity. The purpose of this study was to increase the clinical use of DOX through decreasing its detrimental effects via combination with ACE inhibitors to ameliorate the induced acute kidney injury (AKI). AKI was induced by a single injection of DOX (7.5 mg/kg; i.p.) as Group 1; control (vehicle), Group 2; DOX (7.5 mg/kg; i.p.) single dose, Group 3 and 4; Lisinopril (Lis, 20 mg/kg) and Enalapril (Enal, 40 mg/kg) orally administration for 15 consecutive days after DOX injection, respectively. Serum samples were used to measure creatinine and BUN, tissue samples were extracted to determine myeloperoxidase (MPO), malondialdehyde (MDA), total antioxidant capacity (TAC) and kidney injury molecule (KIM-1) using ELISA technique. Heme oxygenase (HO-1) RNA expression was quantified in tissue using real time polymerase chain reaction (PCR). Parts of the kidney tissue were kept in formalin for immunohistochemical demonstration of Cleaved Caspase-3 and NF-κβ immune staining and the other part was used for pathological examination. Oral treatment with Lis (20 mg/kg) and Enal (40 mg/kg) for 15 consecutive days reversed DOX effects as they reduced the serum creatinine and BUN, kidney levels of MPO and MDA, whereas the drugs increased tissue TAC. The administration of Lis and Enal with DOX also reduced KIM-1and HO-1 RNA expression. A significant decrease in cleaved caspase-3 and NF-κβ immunostainings in conjunction with pronounced amelioration in pathologies in the rat kidney were observed. We concluded that DOX adverse effects can be controlled by Lis and Enal.
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Affiliation(s)
- Gihan F Asaad
- Pharmacology Department, Medical Research Division, National Research Centre (ID: 60014618), 33 EL Bohouth Street, P.O. 12622, Dokki, Giza, Egypt
| | - Azza Hassan
- Department of Pathology, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt
| | - Rasha E Mostafa
- Pharmacology Department, Medical Research Division, National Research Centre (ID: 60014618), 33 EL Bohouth Street, P.O. 12622, Dokki, Giza, Egypt
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El Shehaby DM, El-Mahdy RI, Ahmed AM, Hosny A, Abd El-Rady NM. Neurobehavioral, testicular and erectile impairments of chronic ketamine administration: Pathogenesis and ameliorating effect of N-acetyl cysteine. Reprod Toxicol 2020; 96:57-66. [PMID: 32512129 DOI: 10.1016/j.reprotox.2020.05.016] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2020] [Revised: 05/05/2020] [Accepted: 05/28/2020] [Indexed: 01/07/2023]
Abstract
Ketamine, a dissociative anesthetic, recently has spread as a recreational drug. Its abuse lead to neurobehavioral disturbance in addition to toxic effects on other body organs. To evaluate the toxic effects of chronic administration of low ketamine doses on the memory, testicles, and erection, explore its pathophysiology through oxidative stress mechanism and examine the ameliorating effect of N-acetyl cysteine (NAC). A total of 40 male albino rats were assigned to control, vehicle, ketamine only I.P. (10 mg/kg), and ketamine (10 mg/kg) + NAC (150 mg/kg) groups. Assessment of memory affection and erectile function by Passive Avoidance, Novel Object Recognition, and copulatory tests were performed. Estimation of malondialdehyde (MDA), catalase (CAT), and total antioxidant capacity (TAC) in serum and prefrontal & hippocampal homogenate, and luteinizing hormone (LH), testosterone in serum were done. Prefrontal cortex, hippocampus, and testes were collected for histopathology. Chronic ketamine administration induced significant memory deficits (P < 0.05), reduced erectile function (P < 0.05), severe hypospermatogenesis, increased MDA, reduced CAT, TAC levels in serum, and tissue homogenate (P < 0.05) and reduction of LH, and testosterone (P < 0.05). Treatment with NAC resulted in significant improvement of memory function, improved erectile function, and decrease in oxidative injury in both serum and tissue homogenates. Testosterone and LH levels exhibited significant difference between treatment groups and controls (P < 0.05). NAC reduced the deleterious histopathological changes. These data suggest that long-term ketamine affects short and long memory, induces erectile and testicular dysfunction through oxidative stress. Co-administration with NAC ameliorates these toxic effects.
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Affiliation(s)
- Doaa M El Shehaby
- Forensic Medicine& Clinical Toxicology Department, Faculty of Medicine, Assiut University, Assiut, Egypt
| | - Reham I El-Mahdy
- Medical Biochemistry & Molecular Biology Department, Faculty of Medicine, Assiut University, Assiut, Egypt.
| | - Asmaa M Ahmed
- Pathology Department, Faculty of Medicine, Assiut University, Assiut, Egypt
| | - Ahmed Hosny
- Dermatology and Andrology Department, Faculty of Medicine, Helwan University, Helwan, Egypt
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Antihypertensive Effects of Polyphenolic Extract from Korean Red Pine ( Pinus densiflora Sieb. et Zucc.) Bark in Spontaneously Hypertensive Rats. Antioxidants (Basel) 2020; 9:antiox9040333. [PMID: 32325920 PMCID: PMC7222369 DOI: 10.3390/antiox9040333] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Revised: 04/17/2020] [Accepted: 04/17/2020] [Indexed: 12/18/2022] Open
Abstract
Korean red pine (Pinus densiflora Sieb. et Zucc.) bark is a by-product of the wood industry and contains a high level of antioxidative phenolics including flavonoids, which have a variety of beneficial health effects. This study aimed to investigate the antihypertensive effects of P. densiflora bark extract (Korean red pine bark extract; KRPBE) in spontaneously hypertensive rats (SHRs). A group of Wistar-Kyoto rats (WKRs) as a normotensive group was orally fed tap water. Four groups of SHRs were orally fed tap water, captopril (a positive control), 50 mg/kg/day of KRPBE, and 150 mg/kg/day of KRPBE, respectively. Blood pressure of rats was measured once every week for seven weeks of oral administration. After seven weeks, the lungs, kidneys, and serum were collected from rats, then angiotensin-converting enzyme (ACE) activity, angiotensin II content, and malondialdehyde (MDA) content were determined. Blood pressure of the captopril- and KRPBE-treated groups was significantly lower than that of the SHR control group. The ACE activity, angiotensin II content, and MDA content significantly decreased in the captopril- and KRPBE-treated groups than those in the SHR control group. High-performance liquid chromatography analysis revealed six phenolics in KRPBE: protocatechuic acid, procyanidin B1, catechin, caffeic acid, vanillin, and taxifolin. KRPBE, which contains plenty of antioxidative phenolics, has antihypertensive effects partly due to reduction of ACE activity and angiotensin II content, and its antioxidative effect.
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Sheweita SA, Meftah AA, Sheweita MS, Balbaa ME. Erectile dysfunction drugs altered the activities of antioxidant enzymes, oxidative stress and the protein expressions of some cytochrome P450 isozymes involved in the steroidogenesis of steroid hormones. PLoS One 2020; 15:e0241509. [PMID: 33166302 PMCID: PMC7652355 DOI: 10.1371/journal.pone.0241509] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Accepted: 10/15/2020] [Indexed: 02/07/2023] Open
Abstract
OBJECTIVES Infertility is a global health problem with about 15 percent of couples involved. About half of the cases of infertility are related to male-related factors. A major cause of infertility in men is oxidative stress, which refers to an imbalance between levels of reactive oxygen species (ROS) and antioxidants. Erectile dysfunction drugs (EDD), known as phosphodiesterase inhibitors (PDEIs), have been used for the treatment of ED. It has been shown that oxidative stress plays an important role in the progression of erectile dysfunction. Oxidative stress can be alleviated or decreased by non-antioxidants and antioxidant enzymes. The present study was undertaken to determine if these compounds could have a role in the incidence of infertility, especially after long-term use. Therefore, the present study aims to investigate the effect of EDD on the activities of antioxidant enzymes, free radical levels as well as the protein expression of different cytochrome P450 isozymes involved in the steroidogenesis of different hormones. In addition, the activity of both 17β-hydroxysteroid dehydrogenase and 17-ketosteroid reductase were assayed. The architectures of both livers and testes cells were investigated under the influence of EDD. METHODS A daily dose of Sildenafil (1.48 mg/kg), Tadalafil (0.285 mg/kg) and Vardenafil (0.285 mg/kg) were administered orally to male rabbits for 12 week. Western immunoblotting, ELISA, spectrophotometric and histopathological techniques were used in this study. RESULTS The present study showed that Sildenafil, Vardenafil, and Tadalafil treatments significantly decreased the levels of glutathione and free radicals in both livers and testes of rabbits. Also, Vardenafil and Sildenafil induced the activity of superoxide dismutase and catalase whereas, glutathione S-transferase, glutathione reductase, and glutathione peroxidase activities inhibited in livers of rabbits. The protein expression of cytochrome P450 isozymes (CYP 11A1, 21A2, and 19C) which are involved in the steroidogenesis was markedly changed in both livers and testes of rabbits after their treatments for 12 weeks. After the treatment of rabbits with these medication, the protein expression of CYP11A1 was slightly down-regulated in both livers and testes except Sildenafil up-regulated such protein expression. In addition, the protein expressions of CYP11A1 and CYP 19C in both livers and testes were down-regulated after treatment of rabbits with Sildenafil, Vardenafil, and Tadalafil for 12 weeks. Also, these drugs inhibited the activity of both 17β-hydroxysteroid dehydrogenase and 17-ketosteroid reductase in testes of rabbits. Moreover, Sildenafil, Vardenafil, and Tadalafil-treated rabbits showed a decrease in spermatocytes and the number of sperms in the testes. CONCLUSIONS It is concluded that ED drugs induced the activities of both SOD and catalase which consequently decreased MDA level. Decrement in MDA levels and oxidative stress could therefore sustain the erection for a long period of time. On the other hand, it is not advised to use these drugs for a long-term since the protein expressions of CYP isozymes involved in steroidogenesis as well as the numbers of spermatocytes in testes were decreased.
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Affiliation(s)
- Salah A. Sheweita
- Department of Clinical Biochemistry, Faculty of Medicine, King Khalid University, Abha, Kingdom of Saudi Arabia
- Department of Biotechnology, Alexandria University, Alexandria, Egypt
- * E-mail:
| | - Amal A. Meftah
- Department of Biotechnology, Alexandria University, Alexandria, Egypt
| | - Mohamed S. Sheweita
- Department of Urology, Alexandria Main Hospital, Alexandria University, Alexandria, Egypt
| | - Mahmoud E. Balbaa
- Department of Biochemistry, Faculty of Science, Alexandria University, Alexandria, Egypt
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Cavalim Vale AP, Dos Santos G, da Silva TP, Mansano NDS, Chies AB, Chagas EFB, Spadella MA. Influence of the AT1 Receptor Antagonists Telmisartan and Losartan on Reproduction and Offspring After Paternal Exposure to Ionizing Radiation. Reprod Sci 2018; 26:639-648. [PMID: 29938606 DOI: 10.1177/1933719118783251] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
This study evaluated the repercussions of paternal exposure to radiation on reproduction and offspring in rats, as well as whether treatment with the angiotensin II type 1 (AT1) receptor antagonists telmisartan and losartan has a mitigating effect. Rats were randomly divided into 6 groups: control, radiation, telmisartan, losartan, radiation + telmisartan, and radiation + losartan. A single 5 Gy dose of radiation was administered directly into the scrotum, followed by treatment with telmisartan (12 mg/kg/d) or losartan (34 mg/kg/2 times per day) for 60 days in the groups receiving these medications. The reproductive ability of the test animals was assessed before and after exposure to radiation via fertility tests. The resulting offspring were analyzed for the presence of external and internal anomalies. Ionizing radiation significantly affected the rates of fertility, pre- and postimplantation losses, and implantation. Telmisartan and losartan did not significantly prevent this radiation-induced damage. The frequency of fetal anomalies was similar in offspring produced before and after paternal radiation exposure. Moreover, irradiated rats that received treatments and were able to generate offspring did not produce fetuses with morphological changes; this may represent a possible radioprotective effect AT1 antagonists have on offspring development, although few fetuses survived and were evaluated for malformations. Although the study findings indicate that these medications have a positive effect, further studies with longer treatment periods (extending beyond 1 rat spermatogenic cycle) are needed to determine whether these drugs significantly improve reproductive rates after paternal exposure to radiation, which may also reflect an increase in the number of viable fetuses.
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Affiliation(s)
| | | | | | - Naira da Silva Mansano
- 3 Department of Anatomy, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Agnaldo Bruno Chies
- 4 Laboratory of Pharmacology, Marília Medical School, Marília, São Paulo, Brazil
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da Silva Mansano N, Jorge IF, Chies AB, Viani GA, Spadella MA. Effects of telmisartan and losartan on irradiated testes. Life Sci 2018; 194:157-167. [DOI: 10.1016/j.lfs.2017.12.031] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2017] [Revised: 12/20/2017] [Accepted: 12/23/2017] [Indexed: 12/19/2022]
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LIU JJ, LU Y, PING NN, LI X, LIN YX, LI CF. Apocynin Ameliorates Pressure Overload-Induced Cardiac Remodeling by Inhibiting Oxidative Stress and Apoptosis. Physiol Res 2017; 66:741-752. [DOI: 10.33549/physiolres.933257] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Oxidative stress plays an important role in pressure overload-induced cardiac remodeling. The purpose of this study was to determine whether apocynin, a nicotinamide adenine dinucleotide phosphate (NADPH) oxidase inhibitor, attenuates pressure overload-induced cardiac remodeling in rats. After abdominal aorta constriction, the surviving rats were randomly divided into four groups: sham group, abdominal aorta constriction group, apocynin group, captopril group. Left ventricular pathological changes were studied using Masson’s trichrome staining. Metalloproteinase-2 (MMP-2) levels in the left ventricle were analyzed by western blot and gelatin zymography. Oxidative stress and apoptotic index were also examined in cardiomyocytes using dihydroethidium and terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL), respectively. Our results showed that abdominal aorta constriction significantly caused excess collagen deposition and cardiac insult. Treatment with apocynin significantly inhibited deposition of collagen and reduced the level of MMP-2. Furthermore, apocynin also decreased the NADPH oxidase activity, reactive oxygen species production and cardiomyocyte apoptotic index. Interestingly, apocynin only inhibited NADPH oxidase activity without affecting its expression or the level of angiotension II in the left ventricle. In conclusion, apocynin reduced collagen deposition, oxidative stress, and inhibited apoptosis, ultimately ameliorating cardiac remodeling by mechanisms that are independent of the renin-angiotensin system.
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Affiliation(s)
| | | | | | | | | | - C.-F. LI
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi Province, China
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Wei J, Xu H, Liu Y, Li B, Zhou F. Effect of captopril on radiation-induced TGF-β1 secretion in EA.Hy926 human umbilical vein endothelial cells. Oncotarget 2017; 8:20842-20850. [PMID: 28209920 PMCID: PMC5400550 DOI: 10.18632/oncotarget.15356] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2016] [Accepted: 01/27/2017] [Indexed: 12/20/2022] Open
Abstract
The pathophysiological mechanism involved in the sustained endothelial secretion of cytokines that leads to fibrosis 6–16 months after radiotherapy remains unclear. Angiotensin II (Ang II) is produced by the endothelium in response to stressing stimuli, like radiation, and may induce the synthesis of TGF-β, a profibrotic cytokine. In this study we tested the hypothesis that captopril, an angiotensin-converting enzyme (ACE) inhibitor, inhibits or attenuates radiation-induced endothelial TGF-β1 secretion. The human endothelial hybrid cell line EA.HY926 was irradiated with split doses of x-rays (28 Gy delivered in 14 fractions of 2 Gy). TGF-β1 mRNA, TNF-α mRNA and TGF-β1 protein levels were evaluated by RT-PCR and western blotting each month until the fifth month post radiation. Ang II was detected using radioimmunoassays, NF-κB activity was examined using EMSA, and western blotting was used to detect the expression of Iκ-Bα. To explore the role of Ang II on radiation-induced TGF-β1 release and Iκ-Bα expression, captopril was added to cultured cells before, during, or after irradiation. Sustained strong expression of TGF-β1 was observed after conventional fractionated irradiation. TNF-α, Ang II, and NF-κB activity were also increased in EA.Hy926 cells after radiation. Captopril decreased Ang II expression, inhibited the NF-κB pathway and reduced TGF-β1 expression. These data suggest that captopril might protect the endothelium from radiation-induced injury.
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Affiliation(s)
- Jingni Wei
- Department of Radiation and Medical Oncology, Zhongnan Hospital, Wuhan University, Wuhan, 430071, China.,Hubei Key Laboratory of Tumor Biological Behaviors, Zhongnan Hospital, Wuhan University, Wuhan, 430071, China.,Department of Radiation Oncology, Cancer Hospital of Guangxi Medical University, Nanning, Guangxi, 530021, China
| | - Hui Xu
- Department of Radiation and Medical Oncology, Zhongnan Hospital, Wuhan University, Wuhan, 430071, China.,Hubei Key Laboratory of Tumor Biological Behaviors, Zhongnan Hospital, Wuhan University, Wuhan, 430071, China.,Hubei Clinical Cancer Study Centre, Zhongnan Hospital, Wuhan University, Wuhan, 430071, China
| | - Yinyin Liu
- Hubei Key Laboratory of Tumor Biological Behaviors, Zhongnan Hospital, Wuhan University, Wuhan, 430071, China
| | - Baiyu Li
- Hubei Key Laboratory of Tumor Biological Behaviors, Zhongnan Hospital, Wuhan University, Wuhan, 430071, China
| | - Fuxiang Zhou
- Department of Radiation and Medical Oncology, Zhongnan Hospital, Wuhan University, Wuhan, 430071, China.,Hubei Key Laboratory of Tumor Biological Behaviors, Zhongnan Hospital, Wuhan University, Wuhan, 430071, China.,Hubei Clinical Cancer Study Centre, Zhongnan Hospital, Wuhan University, Wuhan, 430071, China
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15
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Thymoquinone ameliorates renal damage in unilateral ureteral obstruction in rats. Pharmacol Rep 2017; 69:648-657. [DOI: 10.1016/j.pharep.2017.03.002] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2016] [Revised: 01/24/2017] [Accepted: 03/08/2017] [Indexed: 02/07/2023]
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Resveratrol improves vasoprotective effects of captopril on aortic remodeling and fibrosis triggered by renovascular hypertension. Cardiovasc Pathol 2016; 25:116-9. [DOI: 10.1016/j.carpath.2015.11.003] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/30/2015] [Revised: 11/03/2015] [Accepted: 11/07/2015] [Indexed: 11/20/2022] Open
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Sheweita S, Salama B, Hassan M. Erectile dysfunction drugs and oxidative stress in the liver of male rats. Toxicol Rep 2015; 2:933-938. [PMID: 28962432 PMCID: PMC5598225 DOI: 10.1016/j.toxrep.2015.06.002] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2015] [Revised: 05/29/2015] [Accepted: 06/01/2015] [Indexed: 12/14/2022] Open
Abstract
Erectile dysfunction (ED) affected the lives of more than 300 million men worldwide. Erectile dysfunction drugs (EDD), known as phosphodiesterase inhibitors (PDEIs), have been used for treatment of ED. It has been shown that oxidative stress plays an important role in the progression of erectile dysfunction. Oxidative stress can be alleviated or decreased by antioxidant enzymes. Therefore, the present study aims at investigating the changes in the activity of antioxidant enzymes such as superoxide dismutase, catalase, and glutathione reductase as well as protein expression of glutathione peroxidase and glutathione S-transferase after treatment of male rats with a daily dose of sildenafil (1.48 mg/kg), tadalafil (0.285 mg/kg) and vardenafil (0.285 mg/kg) for three weeks. In addition, levels of reduced glutathione and malondialdyhyde (MDA) were assayed. The present study showed that sildenafil, vardenafil, and tadalafil treatments significantly decreased the levels of glutathione, MDA and the activity of glutathione reductase. In addition, vardenafil and sildenafil increased the activity of superoxide dismutase and catalase. Interestingly, western immunoblotting data showed that vardenafil induced the activity of glutathione peroxidase (GPX) and its protein expression, whereas tadalafil and sildenafil inhibited such enzyme activity and its protein expression. In addition, the protein expression of GST π isozyme was markedly reduced after treatment of rats with sildenafil. It is concluded that ED drugs induced the activities of both SOD and catalase which consequently decreased MDA level. Therefore, decrement in MDA levels could increase nitric oxide–cGMP level which in turn promotes the erection mechanism.
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Key Words
- CAT, catalase
- Catalase
- ED, erectile dysfunction
- EDD, erectile dysfunction drugs
- GPx, glutathione peroxidase
- GR, glutathione reductase
- GSH, glutathione
- GST, glutathione S-transferase
- Glutathione
- Glutathione peroxidase
- Glutathione reductase
- MDA, malondialdyhyde
- Oxidative stress
- PDE-5, phosphodiesterase type-5
- PDEIs, phosphodiesterase inhibitors
- ROS, reactive oxygen species
- SOD, superoxide dismutase
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Affiliation(s)
- Salah Sheweita
- Department of Biotechnology, Institute of Graduate Studies & Research, Alexandria University, Egypt
| | - Basant Salama
- Department of Biotechnology, Institute of Graduate Studies & Research, Alexandria University, Egypt
| | - Mostafa Hassan
- Department of Environmental Studies, Institute of Graduate Studies & Research, Alexandria University, Egypt
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Eid LP, Soriano RN, Batalhão ME, Balderrama LP, Carnio EC. Pharmacotherapy and analysis of gaseous mediators in hypertensive patients. Rev Esc Enferm USP 2015; 49:69-75. [DOI: 10.1590/s0080-623420150000100009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2014] [Accepted: 10/22/2014] [Indexed: 11/22/2022] Open
Abstract
OBJECTIVE To evaluate the effect of using antihypertensive classes of drugs of the calcium channel antagonists and inhibitors of angiotensin-converting enzyme in plasma concentrations of hydrogen sulfide and nitric oxide in patients with hypertension. METHODS Cross-sectional study with quantitative approach conducted with hypertensive patients in use of antihypertensive classes of drugs: angiotensin-converting enzyme inhibitors or calcium channel antagonists. RESULTS It was found that the concentration of plasma nitric oxide was significantly higher in hypertensive patients that were in use of angiotensin-converting enzyme inhibitors (p<0.03) and the hydrogen sulphide concentration was significantly higher in hypertensive plasma in use of calcium channel antagonists (p<0.002). CONCLUSION The findings suggest that these medications have as additional action mechanism the improvement of endothelial dysfunction by elevate plasma levels of vasodilatory substances.
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Panahpour H, Dehghani GA, Bohlooli S. Enalapril attenuates ischaemic brain oedema and protects the blood-brain barrier in rats via an anti-oxidant action. Clin Exp Pharmacol Physiol 2014; 41:220-6. [PMID: 24471927 DOI: 10.1111/1440-1681.12210] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2013] [Revised: 11/26/2013] [Accepted: 11/30/2013] [Indexed: 12/01/2022]
Abstract
1. In the present study, we investigated the effects of postischaemic angiotensin-converting enzyme (ACE) inhibition with enalapril on vasogenic oedema formation and blood-brain barrier (BBB) integrity following transient focal cerebral ischaemia in rats. 2. Cerebral ischaemia was induced by 60 min occlusion of the right middle cerebral artery, followed by 24 h reperfusion. Vehicle and a non-hypotensive dose of enalapril (0.03 mg/kg) were administered at the beginning of the reperfusion period. A neurological deficit score (NDS) was determined for all rats at the end of the reperfusion period. Then, brain oedema formation was investigated using the wet-dry weight method and BBB permeability was evaluated on the basis of extravasation of Evans blue (EB) dye. In addition, oxidative stress was assessed by measuring reduced glutathione (GSH) and malondialdehyde (MDA) in brain homogenates. 3. Inhibition of ACE by enalapril significantly reduced NDS and decreased brain oedema formation (P < 0.05 for both). Disruption of the BBB following ischaemia resulted in considerable leakage of EB dye into the brain parenchyma of the ipsilateral hemispheres of vehicle-treated rats. Enalapril significantly (P < 0.05) decreased EB extravasation into the lesioned hemisphere. Enalapril also augmented anti-oxidant activity in ischaemic brain tissue by increasing GSH concentrations and significantly (P < 0.05) attenuating the increased MDA levels in response to ischaemia. 4. In conclusion, inhibition of ACE with a non-hypotensive dose of enalapril may protect BBB function and attenuate oedema formation via anti-oxidant actions.
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Affiliation(s)
- Hamdollah Panahpour
- Department of Physiology and Pharmacology, Medical School, Ardabil University of Medical Sciences, Ardabil, Iran
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Lemmo W. Potential interactions of prescription and over‐the‐counter medications having antioxidant capabilities with radiation and chemotherapy. Int J Cancer 2014; 137:2525-33. [DOI: 10.1002/ijc.29208] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2014] [Revised: 08/01/2014] [Accepted: 08/12/2014] [Indexed: 02/03/2023]
Affiliation(s)
- Walter Lemmo
- LEMMO Integrated Cancer Care Inc.Vancouver Canada
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Protective effect of captopril against clozapine-induced myocarditis in rats: Role of oxidative stress, proinflammatory cytokines and DNA damage. Chem Biol Interact 2014; 216:43-52. [DOI: 10.1016/j.cbi.2014.03.012] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2014] [Revised: 03/20/2014] [Accepted: 03/26/2014] [Indexed: 12/21/2022]
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Jeong JS, Suh JK, Cho ES, Kim DW, Jeong MA. Antioxidant effect of muscle relaxants (vecuronium, rocuronium) on the rabbit abdominal aortic endothelial damage induced by reactive oxygen species. Korean J Anesthesiol 2013; 65:552-8. [PMID: 24427462 PMCID: PMC3888849 DOI: 10.4097/kjae.2013.65.6.552] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2013] [Revised: 08/08/2013] [Accepted: 08/08/2013] [Indexed: 01/19/2023] Open
Abstract
Background Muscle relaxants induce vascular smooth muscle relaxation by inducing synthesis of the prostaglandins that influence vasomotor tone. However, the effects of muscle relaxants on endothelial cells and tissues following injury by reactive oxygen species (ROS) are unclear. We tested the effects of the muscle relaxants vecuronium and rocuronium on impaired acetylcholine (ACh)-induced relaxation following induction of ROS in rabbit aorta in vitro. Methods Isolated rabbit abdominal aortic ring segments were pretreated with vecuronium or rocuronium at 10-4, 3 × 10-4, 10-3 or 3 × 10-3 M, with or without inhibitors of Cu/Zn superoxide dismutase (diethyldithiocarbamate; DETCA, 0.8 mM) or catalase (3-amino-1,2,4-triazole; 3AT, 50 mM). All groups of aortic rings were then exposed to ROS generated by electrolysis in the organ bath medium (Krebs-Henseleit solution). The effects of vecuronium and rocuronium on ROS-induced impairment of relaxation induced by ACh (10-6 M) were assessed. Results Aortic rings treated with vecuronium or rocuronium at 10-4, 3 × 10-4, 10-3 or 3 × 10-3 M preserved the capacity for ACh-induced endothelial relaxation following ROS exposure in a dose-dependent manner. Pretreatment with DETCA partially inhibited the protective effects of vecuronium and rocuronium on ACh-induced relaxation (P < 0.001), but pretreatment with 3AT had no effect. Conclusions Muscle relaxants protected the endothelium in isolated rabbit abdominal aorta from free-radical injury in a dose-dependent manner. These results suggest that vecuronium and rocuronium may act as superoxide anion scavengers.
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Affiliation(s)
- Ji Seon Jeong
- Department of Anesthesilogy and Pain Medicine, School of Medicine, Hanyang University, Seoul, Korea
| | - Jung Kook Suh
- Department of Anesthesilogy and Pain Medicine, School of Medicine, Hanyang University, Seoul, Korea
| | - Eun Sun Cho
- Department of Anesthesilogy and Pain Medicine, School of Medicine, Hanyang University, Seoul, Korea
| | - Dong Won Kim
- Department of Anesthesilogy and Pain Medicine, School of Medicine, Hanyang University, Seoul, Korea
| | - Mi Ae Jeong
- Department of Anesthesilogy and Pain Medicine, School of Medicine, Hanyang University, Seoul, Korea
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Erectile dysfunction medication induced-changes in plasma levels of homocysteine and antioxidant enzyme activities as risk factors for cardiovascular disease. J Taibah Univ Med Sci 2013. [DOI: 10.1016/j.jtumed.2013.04.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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Diosgenin improves vascular function by increasing aortic eNOS expression, normalize dyslipidemia and ACE activity in chronic renal failure rats. Mol Cell Biochem 2013; 384:113-20. [DOI: 10.1007/s11010-013-1788-2] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2013] [Accepted: 08/09/2013] [Indexed: 10/26/2022]
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