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Ibrahim D, Halboup A, Al Ashwal M, Shamsher A. Ameliorative Effect of Olea europaea Leaf Extract on Cisplatin-Induced Nephrotoxicity in the Rat Model. Int J Nephrol 2023; 2023:2074498. [PMID: 37497380 PMCID: PMC10368505 DOI: 10.1155/2023/2074498] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 06/29/2023] [Accepted: 07/05/2023] [Indexed: 07/28/2023] Open
Abstract
Background Olea europaea leaf extract (OELE) has potential health benefits and protects against cytotoxicity. This study investigated the possible ameliorative effect of OELE on cisplatin-induced nephrotoxicity in rats. Methods Rats were assigned into six groups; two groups received 150 mg/kg or 300 mg/kg of OELE, one group received a single dose of cisplatin (6 mg/kg) IP on the first day of the experiment, two groups received a single dose of cisplatin 150 mg/kg or 300 mg/kg of OELE on the first day then starting from the fifth day for 10 consecutive days, and one group acted as a control. Results and Conclusion. The findings showed that cisplatin-induced nephrotoxicity was evidenced by a significant increase in serum creatinine blood urea nitrogen (BUN) and a significant decrease in estimated creatinine clearance and potassium level, which corresponded with the alterations in the histopathology of the renal tissue. OELE significantly ameliorated the nephrotoxic effects of cisplatin as dose-dependent.
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Affiliation(s)
- Doa'a Ibrahim
- Department of Clinical Pharmacy and Pharmacy Practice, Faculty of Pharmacy, University of Science and Technology, Sana'a, Yemen
| | - Abdulsalam Halboup
- Department of Clinical Pharmacy and Pharmacy Practice, Faculty of Pharmacy, University of Science and Technology, Sana'a, Yemen
- Discipline of Clinical Pharmacy, School of Pharmaceutical Sciences, Universiti Sains Malaysia, Penang, Malaysia
| | - Mohammed Al Ashwal
- Department of Pharmacology, Faculty of Pharmacy, University of Science and Technology, Sana'a, Yemen
| | - Amani Shamsher
- Department of Histopathology, University of Science and Technology Hospital, Sana'a, Yemen
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Prud’homme GJ, Kurt M, Wang Q. Pathobiology of the Klotho Antiaging Protein and Therapeutic Considerations. FRONTIERS IN AGING 2022; 3:931331. [PMID: 35903083 PMCID: PMC9314780 DOI: 10.3389/fragi.2022.931331] [Citation(s) in RCA: 34] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Accepted: 06/06/2022] [Indexed: 12/06/2022]
Abstract
The α-Klotho protein (henceforth denoted Klotho) has antiaging properties, as first observed in mice homozygous for a hypomorphic Klotho gene (kl/kl). These mice have a shortened lifespan, stunted growth, renal disease, hyperphosphatemia, hypercalcemia, vascular calcification, cardiac hypertrophy, hypertension, pulmonary disease, cognitive impairment, multi-organ atrophy and fibrosis. Overexpression of Klotho has opposite effects, extending lifespan. In humans, Klotho levels decline with age, chronic kidney disease, diabetes, Alzheimer’s disease and other conditions. Low Klotho levels correlate with an increase in the death rate from all causes. Klotho acts either as an obligate coreceptor for fibroblast growth factor 23 (FGF23), or as a soluble pleiotropic endocrine hormone (s-Klotho). It is mainly produced in the kidneys, but also in the brain, pancreas and other tissues. On renal tubular-cell membranes, it associates with FGF receptors to bind FGF23. Produced in bones, FGF23 regulates renal excretion of phosphate (phosphaturic effect) and vitamin D metabolism. Lack of Klotho or FGF23 results in hyperphosphatemia and hypervitaminosis D. With age, human renal function often deteriorates, lowering Klotho levels. This appears to promote age-related pathology. Remarkably, Klotho inhibits four pathways that have been linked to aging in various ways: Transforming growth factor β (TGF-β), insulin-like growth factor 1 (IGF-1), Wnt and NF-κB. These can induce cellular senescence, apoptosis, inflammation, immune dysfunction, fibrosis and neoplasia. Furthermore, Klotho increases cell-protective antioxidant enzymes through Nrf2 and FoxO. In accord, preclinical Klotho therapy ameliorated renal, cardiovascular, diabetes-related and neurodegenerative diseases, as well as cancer. s-Klotho protein injection was effective, but requires further investigation. Several drugs enhance circulating Klotho levels, and some cross the blood-brain barrier to potentially act in the brain. In clinical trials, increased Klotho was noted with renin-angiotensin system inhibitors (losartan, valsartan), a statin (fluvastatin), mTOR inhibitors (rapamycin, everolimus), vitamin D and pentoxifylline. In preclinical work, antidiabetic drugs (metformin, GLP-1-based, GABA, PPAR-γ agonists) also enhanced Klotho. Several traditional medicines and/or nutraceuticals increased Klotho in rodents, including astaxanthin, curcumin, ginseng, ligustilide and resveratrol. Notably, exercise and sport activity increased Klotho. This review addresses molecular, physiological and therapeutic aspects of Klotho.
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Affiliation(s)
- Gérald J. Prud’homme
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada
- Department of Laboratory Medicine, Keenan Research Centre for Biomedical Science, Unity Health Toronto, Toronto, ON, Canada
- *Correspondence: Gérald J. Prud’homme,
| | - Mervé Kurt
- Department of Laboratory Medicine, Keenan Research Centre for Biomedical Science, Unity Health Toronto, Toronto, ON, Canada
| | - Qinghua Wang
- Department of Endocrinology and Metabolism, Huashan Hospital, Shanghai Medical School, Fudan University, Shanghai, China
- Shanghai Yinuo Pharmaceutical Co., Ltd., Shanghai, China
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Zhang W, Li Z, Li Z, Sun T, He Z, Manyande A, Xu W, Xiang H. The Role of the Superior Cervical Sympathetic Ganglion in Ischemia Reperfusion-Induced Acute Kidney Injury in Rats. Front Med (Lausanne) 2022; 9:792000. [PMID: 35530034 PMCID: PMC9069004 DOI: 10.3389/fmed.2022.792000] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2021] [Accepted: 03/29/2022] [Indexed: 11/29/2022] Open
Abstract
Acute kidney injury (AKI) has been found to be a serious clinical problem with high morbidity and mortality, and is associated with acute inflammatory response and sympathetic activation that subsequently play an important role in the development of AKI. It is well known that the sympathetic nervous system (SNS) and immune system intensely interact and mutually control each other in order to maintain homeostasis in response to stress or injury. Evidence has shown that the superior cervical sympathetic ganglion (SCG) participates in the bidirectional network between the immune and the SNS, and that the superior cervical ganglionectomy has protective effect on myocardial infarction, however, the role of the SCG in the setting of renal ischemic reperfusion injury has not been studied. Here, we sought to determine whether or not the SCG modulates renal ischemic reperfusion (IR) injury in rats. Our results showed that bilateral superior cervical ganglionectomy (SCGx) 14 days before IR injury markedly reduced the norepinephrine (NE) in plasma, and down-regulated the increased expression of tyrosine hydroxylase (TH) in the kidney and hypothalamus. Sympathetic denervation by SCGx in the AKI group increased the level of blood urea nitrogen (BUN) and kidney injury molecule-1 (KIM-1), and exacerbated renal pathological damage. Sympathetic denervation by SCGx in the AKI group enhanced the expression of pro-inflammatory cytokines in plasma, kidney and hypothalamus, and increased levels of Bax in denervated rats with IR injury. In addition, the levels of purinergic receptors, P2X3R and P2X7R, in the spinal cord were up-regulated in the denervated rats of the IR group. In conclusion, these results demonstrate that the sympathetic denervation by SCGx aggravated IR-induced AKI in rats via enhancing the inflammatory response, thus, the activated purinergic signaling in the spinal cord might be the potential mechanism in the aggravated renal injury.
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Affiliation(s)
- Wencui Zhang
- Department of Anesthesiology, Tongji Medical College, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, China
| | - Zhen Li
- Department of Anesthesiology, Tongji Medical College, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, China
| | - Zhixiao Li
- Department of Anesthesiology, Tongji Medical College, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, China
| | - Tianning Sun
- Department of Anesthesiology, Tongji Medical College, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, China
| | - Zhigang He
- Department of Anesthesiology, Tongji Medical College, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, China
| | - Anne Manyande
- School of Human and Social Sciences, University of West London, London, United Kingdom
| | - Weiguo Xu
- Department of Orthopedics, Tongji Medical College, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, China
- *Correspondence: Weiguo Xu,
| | - Hongbing Xiang
- Department of Anesthesiology, Tongji Medical College, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, China
- Hongbing Xiang,
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Wang Y, Liu S, Liu Q, Lv Y. The Interaction of Central Nervous System and Acute Kidney Injury: Pathophysiology and Clinical Perspectives. Front Physiol 2022; 13:826686. [PMID: 35309079 PMCID: PMC8931545 DOI: 10.3389/fphys.2022.826686] [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] [Received: 12/01/2021] [Accepted: 02/03/2022] [Indexed: 11/28/2022] Open
Abstract
Acute kidney injury (AKI) is a common disorder in critically ill hospitalized patients. Its main pathological feature is the activation of the sympathetic nervous system and the renin-angiotensin system (RAS). This disease shows a high fatality rate. The reason is that only renal replacement therapy and supportive care can reduce the impact of the disease, but those measures cannot significantly improve the mortality. This review focused on a generalization of the interaction between acute kidney injury and the central nervous system (CNS). It was found that the CNS further contributes to kidney injury by regulating sympathetic outflow and oxidative stress in response to activation of the RAS and increased pro-inflammatory factors. Experimental studies suggested that inhibiting sympathetic activity and RAS activation in the CNS and blocking oxidative stress could effectively reduce the damage caused by AKI. Therefore, it is of significant interest to specify the mechanism on how the CNS affects AKI, as we could use such mechanism as a target for clinical interventions to further reduce the mortality and improve the complications of AKI. Systematic Review Registration: [www.ClinicalTrials.gov], identifier [registration number].
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Affiliation(s)
- Yiru Wang
- Department of Nephrology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Siyang Liu
- Department of Nephrology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Qingquan Liu
- Department of Nephrology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- *Correspondence: Qingquan Liu,
| | - Yongman Lv
- Department of Nephrology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Health Management Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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Tabary M, Aryannejad A, Noroozi N, Tavangar SM, Mohammad Jafari R, Araghi F, Dadkhahfar S, Dehpour AR. Ivermectin Increases Random-Pattern Skin Flap Survival in Rats: The Novel Role of GABAergic System. J Surg Res 2021; 259:431-441. [PMID: 33069391 DOI: 10.1016/j.jss.2020.09.010] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Revised: 09/01/2020] [Accepted: 09/22/2020] [Indexed: 02/08/2023]
Abstract
BACKGROUND Ivermectin (IVM) was first used as an antiparasitic agent; however, the role of this drug evolved into a broad spectrum. Many mechanisms have been proposed, including interaction with the GABAergic system. Considering the presence of GABA receptor in the skin tissue and its role in ischemia-reperfusion I/R injury, we aimed to evaluate the effect of IVM through GABA receptors on random-pattern skin flap survival. METHODS Sixty Wistar male rats were used. Multiple doses of IVM (0.01, 0.05, 0.2, and 0.5 mg/kg) were injected intraperitoneally before the surgery. Baclofen (selective GABAB agonist) and bicuculline (selective GABAA antagonist) were administered in combination with IVM to assess the role of the GABAergic system. Histopathological evaluations, immunohistochemical staining, quantitative assessment of IL-1β and TNFα, and the expression of GABAA α1 subunit and GABAB R1 receptors were evaluated in the skin tissue. RESULTS IVM 0.05 mg/kg could significantly increase flap survival compared with the control group (P < 0.001). Subeffective dose of baclofen (0.1 mg/kg) had synergistic effect with the subeffective dose of IVM (0.01 mg/kg) (P < 0.001), whereas bicuculline 1 mg/kg reversed the effect of IVM (0.05 mg/kg) (P < 0.001). IVM 0.05 mg/kg could also decrease the IL-1β and TNFα levels and increase the expression of GABAA α1 subunit and GABAB R1 receptors in the flap tissue compared with the control group. CONCLUSIONS IVM could improve skin flap survival, probably mediated by the GABAergic pathway. Both GABAA and GABAB receptors are involved in this process. This finding may repurpose the use of old drug, "Ivermectin."
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Affiliation(s)
- Mohammadreza Tabary
- Experimental Medicine Research Center, Tehran University of Medical Sciences, Tehran, Iran; Department of Pharmacology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Armin Aryannejad
- Experimental Medicine Research Center, Tehran University of Medical Sciences, Tehran, Iran; Department of Pharmacology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Nafise Noroozi
- Experimental Medicine Research Center, Tehran University of Medical Sciences, Tehran, Iran; Department of Pharmacology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Seyed Mohammad Tavangar
- Department of Pathology, Shariati Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Razieh Mohammad Jafari
- Experimental Medicine Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Farnaz Araghi
- Skin Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Sahar Dadkhahfar
- Skin Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Ahmad Reza Dehpour
- Experimental Medicine Research Center, Tehran University of Medical Sciences, Tehran, Iran; Department of Pharmacology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran.
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Cienfuegos-Pecina E, Ibarra-Rivera TR, Saucedo AL, Ramírez-Martínez LA, Esquivel-Figueroa D, Domínguez-Vázquez I, Alcántara-Solano KJ, Moreno-Peña DP, Alarcon-Galvan G, Rodríguez-Rodríguez DR, Torres-González L, Muñoz-Espinosa LE, Pérez-Rodríguez E, Cordero-Pérez P. Effect of sodium ( S)-2-hydroxyglutarate in male, and succinic acid in female Wistar rats against renal ischemia-reperfusion injury, suggesting a role of the HIF-1 pathway. PeerJ 2020; 8:e9438. [PMID: 32728491 PMCID: PMC7357568 DOI: 10.7717/peerj.9438] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Accepted: 06/08/2020] [Indexed: 12/30/2022] Open
Abstract
Background Ischemia–reperfusion (IR) injury is the main cause of delayed graft function in solid organ transplantation. Hypoxia-inducible factors (HIFs) control the expression of genes related to preconditioning against IR injury. During normoxia, HIF-α subunits are marked for degradation by the egg-laying defective nine homolog (EGLN) family of prolyl-4-hydroxylases. The inhibition of EGLN stabilizes HIFs and protects against IR injury. The aim of this study was to determine whether the EGLN inhibitors sodium (S)-2-hydroxyglutarate [(S)-2HG] and succinic acid (SA) have a nephroprotective effect against renal IR injury in Wistar rats. Methods (S)-2HG was synthesized in a 22.96% yield from commercially available L-glutamic acid in a two-step methodology (diazotization/alkaline hydrolysis), and its structure was confirmed by nuclear magnetic resonance and polarimetry. SA was acquired commercially. (S)-2HG and SA were independently evaluated in male and female Wistar rats respectively after renal IR injury. Rats were divided into the following groups: sham (SH), nontoxicity [(S)-2HG: 12.5 or 25 mg/kg; SA: 12.5, 25, or 50 mg/kg], IR, and compound+IR [(S)-2HG: 12.5 or 25 mg/kg; SA: 12.5, 25, or 50 mg/kg]; independent SH and IR groups were used for each assessed compound. Markers of kidney injury (BUN, creatinine, glucose, and uric acid) and liver function (ALT, AST, ALP, LDH, serum proteins, and albumin), proinflammatory cytokines (IL-1β, IL-6, and TNF-α), oxidative stress biomarkers (malondialdehyde and superoxide dismutase), and histological parameters (tubular necrosis, acidophilic casts, and vascular congestion) were assessed. Tissue HIF-1α was measured by ELISA and Western blot, and the expression of Hmox1 was assessed by RT-qPCR. Results (S)-2HG had a dose-dependent nephroprotective effect, as evidenced by a significant reduction in the changes in the BUN, creatinine, ALP, AST, and LDH levels compared with the IR group. Tissue HIF-1α was only increased in the IR group compared to SH; however, (S)-2HG caused a significant increase in the expression of Hmox1, suggesting an early accumulation of HIF-1α in the (S)-2HG-treated groups. There were no significant effects on the other biomarkers. SA did not show a nephroprotective effect; the only changes were a decrease in creatinine level at 12.5 mg/kg and increased IR injury at 50 mg/kg. There were no effects on the other biochemical, proinflammatory, or oxidative stress biomarkers. Conclusion None of the compounds were hepatotoxic at the tested doses. (S)-2HG showed a dose-dependent nephroprotective effect at the evaluated doses, which involved an increase in the expression of Hmox1, suggesting stabilization of HIF-1α. SA did not show a nephroprotective effect but tended to increase IR injury when given at high doses.
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Affiliation(s)
- Eduardo Cienfuegos-Pecina
- Universidad Autonoma de Nuevo Leon, Liver Unit, Department of Internal Medicine, University Hospital "Dr. José E. González", Monterrey, Nuevo León, Mexico
| | - Tannya R Ibarra-Rivera
- Universidad Autonoma de Nuevo Leon, Department of Analytical Chemistry, School of Medicine, Monterrey, Nuevo León, Mexico
| | - Alma L Saucedo
- Universidad Autonoma de Nuevo Leon, Department of Analytical Chemistry, School of Medicine, Monterrey, Nuevo León, Mexico
| | - Luis A Ramírez-Martínez
- Universidad Autonoma de Nuevo Leon, Liver Unit, Department of Internal Medicine, University Hospital "Dr. José E. González", Monterrey, Nuevo León, Mexico
| | - Deanna Esquivel-Figueroa
- Universidad Autonoma de Nuevo Leon, Liver Unit, Department of Internal Medicine, University Hospital "Dr. José E. González", Monterrey, Nuevo León, Mexico
| | - Ixel Domínguez-Vázquez
- Universidad Autonoma de Nuevo Leon, Liver Unit, Department of Internal Medicine, University Hospital "Dr. José E. González", Monterrey, Nuevo León, Mexico
| | - Karina J Alcántara-Solano
- Universidad Autonoma de Nuevo Leon, Liver Unit, Department of Internal Medicine, University Hospital "Dr. José E. González", Monterrey, Nuevo León, Mexico
| | - Diana P Moreno-Peña
- Universidad Autonoma de Nuevo Leon, Liver Unit, Department of Internal Medicine, University Hospital "Dr. José E. González", Monterrey, Nuevo León, Mexico
| | - Gabriela Alarcon-Galvan
- Universidad de Monterrey, Basic Science Department, School of Medicine, Monterrey, Nuevo León, Mexico
| | - Diana Raquel Rodríguez-Rodríguez
- Universidad Autonoma de Nuevo Leon, Liver Unit, Department of Internal Medicine, University Hospital "Dr. José E. González", Monterrey, Nuevo León, Mexico
| | - Liliana Torres-González
- Universidad Autonoma de Nuevo Leon, Liver Unit, Department of Internal Medicine, University Hospital "Dr. José E. González", Monterrey, Nuevo León, Mexico
| | - Linda E Muñoz-Espinosa
- Universidad Autonoma de Nuevo Leon, Liver Unit, Department of Internal Medicine, University Hospital "Dr. José E. González", Monterrey, Nuevo León, Mexico
| | - Edelmiro Pérez-Rodríguez
- Universidad Autonoma de Nuevo Leon, Transplant Service, University Hospital "Dr. José E. González", Monterrey, Nuevo León, Mexico
| | - Paula Cordero-Pérez
- Universidad Autonoma de Nuevo Leon, Liver Unit, Department of Internal Medicine, University Hospital "Dr. José E. González", Monterrey, Nuevo León, Mexico
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The Roles of GABA in Ischemia-Reperfusion Injury in the Central Nervous System and Peripheral Organs. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2019; 2019:4028394. [PMID: 31814874 PMCID: PMC6878816 DOI: 10.1155/2019/4028394] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Revised: 09/27/2019] [Accepted: 10/18/2019] [Indexed: 12/30/2022]
Abstract
Ischemia-reperfusion (I/R) injury is a common pathological process, which may lead to dysfunctions and failures of multiple organs. A flawless medical way of endogenous therapeutic target can illuminate accurate clinical applications. γ-Aminobutyric acid (GABA) has been known as a marker in I/R injury of the central nervous system (mainly in the brain) for a long time, and it may play a vital role in the occurrence of I/R injury. It has been observed that throughout cerebral I/R, levels, syntheses, releases, metabolisms, receptors, and transmissions of GABA undergo complex pathological variations. Scientists have investigated the GABAergic enhancers for attenuating cerebral I/R injury; however, discussions on existing problems and mechanisms of available drugs were seldom carried out so far. Therefore, this review would summarize the process of pathological variations in the GABA system under cerebral I/R injury and will cover corresponding probable issues and mechanisms in using GABA-related drugs to illuminate the concern about clinical illness for accurately preventing cerebral I/R injury. In addition, the study will summarize the increasing GABA signals that can prevent I/R injuries occurring in peripheral organs, and the roles of GABA were also discussed correspondingly.
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Perez-Meseguer J, Torres-González L, Gutiérrez-González JA, Alarcón-Galván G, Zapata-Chavira H, Waksman-de Torres N, Moreno-Peña DP, Muñoz-Espinosa LE, Cordero-Pérez P. Anti-inflammatory and nephroprotective activity of Juglans mollis against renal ischemia-reperfusion damage in a Wistar rat model. Altern Ther Health Med 2019; 19:186. [PMID: 31349827 PMCID: PMC6660964 DOI: 10.1186/s12906-019-2604-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Accepted: 07/19/2019] [Indexed: 12/19/2022]
Abstract
BACKGROUND Oxidative stress and the inflammatory process are involved in ischemia-reperfusion (I/R) injury. Juglans mollis has been reported as having antioxidant activity, which could attenuate the damage caused by I/R. We evaluated whether a methanolic extract of Juglans mollis (JM) exhibits nephroprotective activity in a Wistar rat model of I/R injury. METHODS Four groups of six rats were used: Sham, I/R, JM, and JM + I/R. Two groups were dosed with JM (300 mg/kg) for 7 days before I/R. I/R injury was induced by clamping the renal hilums for 45 min and then reperfusing the kidneys for 15 h. Blood samples were taken to evaluate the levels of alanine aminotransferase (ALT), blood urea nitrogen, creatinine, superoxide dismutase (SOD), malondialdehyde (MDA), interleukin 1β (IL-1β), IL-6, and tumor necrosis factor α (TNF-α). RESULTS The levels of creatinine, ALT, MDA, IL-1β, IL-6, and TNF-α were lower in JM + I/R than in I/R rats, whereas SOD level only was higher in JM + I/R than in Sham rats. No biochemical or histological damage was observed in JM rats compared with Sham rats; however, less histological damage was observed in JM + I/R rats compared with I/R rats. CONCLUSIONS To our knowledge, this is the first report of nephroprotective activity of J. mollis against damage induced by I/R. This activity may be related to decreased levels of proinflammatory cytokines (IL-1β, IL-6, and TNF-α) and modulation of oxidative stress markers (SOD and MDA) observed in the present study.
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Nephroprotective Effect of Sonchus oleraceus Extract against Kidney Injury Induced by Ischemia-Reperfusion in Wistar Rats. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2018; 2018:9572803. [PMID: 29643981 PMCID: PMC5832116 DOI: 10.1155/2018/9572803] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/21/2017] [Revised: 12/06/2017] [Accepted: 12/13/2017] [Indexed: 12/16/2022]
Abstract
Introduction Kidney ischemia-reperfusion (I/R) injury is the main cause of delayed graft function in solid organ transplantation. Sonchus oleraceus is a plant with well-known antioxidant and anti-inflammatory activities; however, its effects on renal I/R are unknown. Objective To evaluate whether S. oleraceus extract (S.O.e.) has nephroprotective activity in an I/R model in Wistar rats. Materials and Methods Animal groups (n = 6): sham, I/R (45 min/15 h), S.O.e (300 mg/kg p.o.), and S.O.e + I/R (300 mg/kg, p.o.; 45 min/15 h). Renal function, proinflammatory cytokines, alanine aminotransferase, markers of oxidative stress, and histology were evaluated. Results None of the mediators evaluated differed significantly between the S.O.e and sham groups. Levels of blood urea nitrogen (BUN), creatinine, malondialdehyde (MDA), and proinflammatory cytokines were higher, and superoxide dismutase (SOD) was lower in the I/R group than in the sham group. Histology showed tubular epithelial necrosis in the medulla and cortex in the I/R group. In the S.O.e + I/R group, S.O.e pretreatment attenuated the I/R-induced increases in BUN, creatinine, MDA, and proinflammatory cytokines induced, SOD was maintained, and histology showed discontinuous necrosis in the medulla but no necrosis in the cortex. Conclusions S.O.e was neither hepatotoxic nor nephrotoxic. S.O.e. pretreatment showed a nephroprotective effect against I/R.
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Nasiri M, Soltani N, Mazaheri S, Maleki M, Talebi A, Gharibi F, Nematbakhsh M. The Role of Gamma Amino Butyric Acid in Cisplatin-induced Nephrotoxicity in Streptozotocin-induced Diabetic Rats. Adv Biomed Res 2017; 6:96. [PMID: 28828347 PMCID: PMC5549550 DOI: 10.4103/2277-9175.211834] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
Background: Diabetes mellitus can change the risk of developing cancer. Cisplatin (CP) is a common antineoplastic drug. The major side effect of CP is nephrotoxicity. Gamma amino butyric acid (GABA) is an antioxidant agent that may have a protective role against CP-induced nephrotoxicity. The aim of the present study was to investigate the role of GABA in CP-induced nephrotoxicity in hyperglycemic male and female rats. Materials and Methods: Sixty male and female Wistar diabetic rats were used in ten experimental groups. GABA alone groups received GABA (50 μmol/kg/d i.p.) for 12 days. CP alone groups received CP (2.5 mg/kg/d i.p.) for 6 days. Other groups received GABA in the form of therapy (T) + CP, prophylaxis (P) + CP, and prophylaxis-treatment (PT) + CP. Finally, blood samples were obtained, and animals were killed for kidney tissue investigation. Results: In female rats, the serum levels of creatinine (Cr) did not change by GABA rather than CP and also there were no significant changes in blood urea nitrogen to creatinine ratio (BUN/Cr). In male rats, plasma Cr level increased by GABA (P) and (T). Body weight loss was significantly different among groups (P < 0.05). BUN/Cr ratio significantly increased in CP and GABA (PT) + CP groups. In two genders, plasma Cr level significantly decreased in CP groups (P < 0.05). The kidney levels of malondialdehyde enhanced significantly in CP groups. Conclusion: Hyperglycemia has protective effect against CP-induced nephrotoxicity. GABA did not change this effect in female, but in male in the form of PT, GABA maintained it.
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Affiliation(s)
- Masoomeh Nasiri
- Water and Electrolytes Research Center, Isfahan University of Medical Sciences, Isfahan, Iran.,Department of Physiology, Faculty of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Nepton Soltani
- Molecular Research Center, Hormozgan University of Medical Sciences, Bandar Abbas, Iran
| | - Safoora Mazaheri
- Water and Electrolytes Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Maryam Maleki
- Water and Electrolytes Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Ardeshir Talebi
- Department of Clinical Pathology, Faculty of Medicine, Isfahan University of Medical Science, Isfahan, Iran
| | - Fatemah Gharibi
- Water and Electrolytes Research Center, Isfahan University of Medical Sciences, Isfahan, Iran.,Department of Physiology, Faculty of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mehdi Nematbakhsh
- Water and Electrolytes Research Center, Isfahan University of Medical Sciences, Isfahan, Iran.,Department of Physiology, Faculty of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran.,Isfahan MN Institute of Basic and Applied Sciences Research, Isfahan, Iran
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11
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The role of renal sympathetic nerves in ischemia reperfusion injury. Auton Neurosci 2017; 204:105-111. [DOI: 10.1016/j.autneu.2017.01.002] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2016] [Revised: 12/22/2016] [Accepted: 01/14/2017] [Indexed: 11/21/2022]
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12
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Tanaka R, Yazawa M, Morikawa Y, Tsutsui H, Ohkita M, Yukimura T, Matsumura Y. Sex differences in ischaemia/reperfusion-induced acute kidney injury depends on the degradation of noradrenaline by monoamine oxidase. Clin Exp Pharmacol Physiol 2017; 44:371-377. [DOI: 10.1111/1440-1681.12713] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2016] [Revised: 11/24/2016] [Accepted: 12/12/2016] [Indexed: 01/23/2023]
Affiliation(s)
- Ryosuke Tanaka
- Laboratory of Pathological and Molecular Pharmacology; Osaka University of Pharmaceutical Sciences; Takatsuki Osaka Japan
| | - Maki Yazawa
- Laboratory of Pathological and Molecular Pharmacology; Osaka University of Pharmaceutical Sciences; Takatsuki Osaka Japan
| | - Yuri Morikawa
- Laboratory of Pathological and Molecular Pharmacology; Osaka University of Pharmaceutical Sciences; Takatsuki Osaka Japan
| | - Hidenobu Tsutsui
- Laboratory of Pathological and Molecular Pharmacology; Osaka University of Pharmaceutical Sciences; Takatsuki Osaka Japan
- Laboratory of Clinical Pharmacology; Faculty of Pharmacy; Osaka Ohtani University; Tondabayashi Osaka Japan
| | - Mamoru Ohkita
- Laboratory of Pathological and Molecular Pharmacology; Osaka University of Pharmaceutical Sciences; Takatsuki Osaka Japan
| | - Tokihito Yukimura
- Laboratory of Clinical Pharmacology; Faculty of Pharmacy; Osaka Ohtani University; Tondabayashi Osaka Japan
| | - Yasuo Matsumura
- Laboratory of Pathological and Molecular Pharmacology; Osaka University of Pharmaceutical Sciences; Takatsuki Osaka Japan
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13
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Hasanvand A, Abbaszadeh A, Darabi S, Nazari A, Gholami M, Kharazmkia A. Evaluation of selenium on kidney function following ischemic injury in rats; protective effects and antioxidant activity. J Renal Inj Prev 2016; 6:93-98. [PMID: 28497082 PMCID: PMC5423291 DOI: 10.15171/jrip.2017.18] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2016] [Accepted: 11/10/2016] [Indexed: 12/25/2022] Open
Abstract
Introduction: Renal dysfunction is caused by ischemia-reperfusion (I/R) injury, which is a common problem in kidney surgery or kidney transplantation. The human body consists of enormous complex antioxidant systems, which inquires adequate selenium (Se) absorption for normal physiologic function. It is known that Se has some antioxidant effects. Objectives: In the present research, effects of the Se on damages caused by I/R injury investigated. Materials and Methods: In this experimental research, four groups of rats (weighing 220±10 g) used, include control group, I/R group, healthy group treated with Se for two weeks, and I/R group with two-week Se treatment. On the test day, I/R was treated in both right and left renal arteries for 45 minutes and the reperfusion was done for 24 hours. Results: In I/R group, the amount of urea and serum creatinine (Cr) was an injury indicator of the kidney cells which showed a significant increase compared with the control group. When the treatment with Se significantly reduced these indicators, glutathione (GSH) enzyme levels reduced significantly in the second group and the enzyme levels increased due to Se treatment in the fourth group. Furthermore, malondialdehyde (MDA) enzyme levels increased in I/R group due to the Se treatment in the fourth group which was significantly reduced. In addition, the tissue damage was reduced in the fourth group compared with I/R group. Conclusion: Se has a protective effect against the I/R injury. This effect might be due to the antioxidant properties of Se.
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Affiliation(s)
- Amin Hasanvand
- Department of Pharmacology, Faculty of pharmacy, Lorestan University of Medical Sciences, Khorramabad, Iran
| | - Abolfazl Abbaszadeh
- Department of Surgery, Lorestan University of Medical Sciences, Khorramabad, Iran
| | - Saeideh Darabi
- azi Herbal Medicines Research Center, Lorestan University of Medical Sciences, Khorramabad, Iran; Lorestan Veterinary Organization Office, Khorramabad, Iran
| | - Afshin Nazari
- Razi Herbal Medicines Research Center, Lorestan University of Medical Sciences, Khorramabad, Iran
| | - Mohammadreza Gholami
- Department of Anatomical Sciences, Lorestan University of Medical Sciences, Khorramabad, Iran
| | - Ali Kharazmkia
- Department of Pharmacotherapy, Faculty of pharmacy, Lorestan University of Medical Sciences, Khorramabad, Iran
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Peysepar E, Soltani N, Nematbakhsh M, Eshraghi-Jazi F, Talebi A. Gamma-aminobutyric acid aggravates nephrotoxicity induced by cisplatin in female rats. J Renal Inj Prev 2016; 5:188-92. [PMID: 27689121 PMCID: PMC5039987 DOI: 10.15171/jrip.2016.40] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2016] [Accepted: 03/03/2016] [Indexed: 11/18/2022] Open
Abstract
Introduction: Cisplatin (CP) is a major antineoplastic drug for treatment of solid tumors. CP-induced nephrotoxicity may be gender-related. This is while gamma-aminobutyric acid (GABA) is an inhibitory neurotransmitter in the central nervous system that has renoprotective impacts on acute renal injury.
Objectives: This study was designed to investigate the protective role of GABA against CP-induced nephrotoxicity in male and female rats.
Materials and Methods: Sixty Wistar male and female rats were used in eight experimental groups. Both genders received GABA (50 μg/kg/day; i. p.) for 14 days and CP (2.5 mg/kg/day; i. p.) was added from day 8 to the end of the study, and they were compared with the control groups. At the end of the study, all animals were sacrificed and the serum levels of blood urea nitrogen (BUN), creatinine (Cr), nitrite, malondialdehyde (MDA), and magnesium (Mg) were measured. The kidney tissue damage was also determined via staining.
Results: CP significantly increased the serum levels of Cr and BUN, kidney weight, and kidney tissue damage score in both genders (P<0.05). GABA did not attenuate these markers in males; even these biomarkers were intensified in females. Serum level of Mg, and testis and uterus weights did not alter in the groups. However, the groups were significantly different in terms of nitrite and MDA levels.
Conclusion: It seems that GABA did not improve nephrotoxicity induced by CP-treated rats, and it exacerbated renal damage in female rats.
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Affiliation(s)
- Elham Peysepar
- Department of Physiology, Hormozgan University of Medical Sciences, Bandar Abbas, Iran ; Water & Electrolytes Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Nepton Soltani
- Department of Physiology, Hormozgan University of Medical Sciences, Bandar Abbas, Iran
| | - Mehdi Nematbakhsh
- Water & Electrolytes Research Center, Isfahan University of Medical Sciences, Isfahan, Iran ; Department of Physiology, Isfahan University of Medical Sciences, Isfahan, Iran ; Isfahan MN Institute of Basic & Applied Sciences Research, Isfahan, Iran
| | - Fatemeh Eshraghi-Jazi
- Water & Electrolytes Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Ardeshir Talebi
- Water & Electrolytes Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
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15
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Kamendi H, Barthlow H, Lengel D, Beaudoin ME, Snow D, Mettetal JT, Bialecki RA. Quantitative pharmacokinetic-pharmacodynamic modelling of baclofen-mediated cardiovascular effects using BP and heart rate in rats. Br J Pharmacol 2016; 173:2845-58. [PMID: 27448216 DOI: 10.1111/bph.13561] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2015] [Revised: 06/29/2016] [Accepted: 07/02/2016] [Indexed: 01/16/2023] Open
Abstract
BACKGROUND AND PURPOSE While the molecular pathways of baclofen toxicity are understood, the relationships between baclofen-mediated perturbation of individual target organs and systems involved in cardiovascular regulation are not clear. Our aim was to use an integrative approach to measure multiple cardiovascular-relevant parameters [CV: mean arterial pressure (MAP), systolic BP, diastolic BP, pulse pressure, heart rate (HR); CNS: EEG; renal: chemistries and biomarkers of injury] in tandem with the pharmacokinetic properties of baclofen to better elucidate the site(s) of baclofen activity. EXPERIMENTAL APPROACH Han-Wistar rats were administered vehicle or ascending doses of baclofen (3, 10 and 30 mg·kg(-1) , p.o.) at 4 h intervals and baclofen-mediated changes in parameters recorded. A pharmacokinetic-pharmacodynamic model was then built by implementing an existing mathematical model of BP in rats. KEY RESULTS Final model fits resulted in reasonable parameter estimates and showed that the drug acts on multiple homeostatic processes. In addition, the models testing a single effect on HR, total peripheral resistance or stroke volume alone did not describe the data. A final population model was constructed describing the magnitude and direction of the changes in MAP and HR. CONCLUSIONS AND IMPLICATIONS The systems pharmacology model developed fits baclofen-mediated changes in MAP and HR well. The findings correlate with known mechanisms of baclofen pharmacology and suggest that similar models using limited parameter sets may be useful to predict the cardiovascular effects of other pharmacologically active substances.
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Affiliation(s)
- Harriet Kamendi
- Drug Safety and Metabolism, AstraZeneca-US, Waltham, MA, USA
| | | | - David Lengel
- Drug Safety and Metabolism, AstraZeneca-US, Waltham, MA, USA
| | | | - Debra Snow
- Drug Safety and Metabolism, AstraZeneca-US, Waltham, MA, USA
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Luo L, Zhen L, Xu Y, Yang Y, Feng S, Wang S, Liang S. (1)H NMR-based metabonomics revealed protective effect of Naodesheng bioactive extract on ischemic stroke rats. JOURNAL OF ETHNOPHARMACOLOGY 2016; 186:257-269. [PMID: 27041403 DOI: 10.1016/j.jep.2016.03.059] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2015] [Revised: 03/23/2016] [Accepted: 03/29/2016] [Indexed: 06/05/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Stroke is a leading cause of death and disability in the world. However, current therapies are limited. Naodesheng, a widely used traditional Chinese medicine prescription, has shown a good clinical curative effect on ischemic stroke. Also, Naodesheng has been suggested to have neuroprotective effect on focal cerebral ischemia rats, but the underlying molecular mechanism remains unclear. AIM OF THE STUDY The present study was designed to evaluate the effect of Naodesheng bioactive extract on the metabolic changes in brain tissue, plasma and urine induced by cerebral ischemia perfusion injury, and explore the possible metabolic mechanisms by using a (1)H NMR-based metabonomics approach. MATERIALS AND METHODS A middle cerebral artery occlusion rat model was established and confirmed by the experiments of neurobehavioral abnormality evaluation, brain tissue TTC staining and pathological examination. The metabolic changes in brain tissue, plasma and urine were then assessed by a (1)H NMR technique combined with multivariate statistical analysis method. RESULTS These NMR data showed that cerebral ischemia reperfusion induced great metabolic disorders in brain tissue, plasma and urine metabolisms. However, Naodesheng bioactive extract could reverse most of the imbalanced metabolites. Meanwhile, it was found that both the medium and high dosages of Naodesheng bioactive extract were more effective on the metabolic changes than the low dosage, consistent with histopathological assessments. CONCLUSIONS These results revealed that Naodesheng had protective effect on ischemic stroke rats and the underlying mechanisms involved multiple metabolic pathways, including energy metabolism, amino acid metabolism, oxidative stress and inflammatory injury. The present study could provide evidence that metabonomics revealed its capacity to evaluate the holistic efficacy of traditional Chinese medicine and explore the underlying mechanisms.
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Affiliation(s)
- Lan Luo
- College of Pharmacy, Heilongjiang University Of Chinese Medicine, Harbin 150040, China; College of Traditional Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Lifeng Zhen
- College of Traditional Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Yatao Xu
- College of Traditional Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Yongxia Yang
- College of Basic courses, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Suxiang Feng
- College of Pharmacy, Henan College of Traditional Chinese Medicine, Zhengzhou 450003, China
| | - Shumei Wang
- College of Traditional Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou 510006, China.
| | - Shengwang Liang
- College of Traditional Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou 510006, China.
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17
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Talebi N, Nematbakhsh M, Monajemi R, Mazaheri S, Talebi A, Vafapour M. The Protective Effect of γ-aminobutyric Acid on Kidney Injury Induced by Renal Ischemia-reperfusion in Ovariectomized Estradiol-treated Rats. Int J Prev Med 2016; 7:6. [PMID: 26941907 PMCID: PMC4755213 DOI: 10.4103/2008-7802.173796] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2014] [Accepted: 06/28/2015] [Indexed: 01/22/2023] Open
Abstract
Background: Renal ischemia-reperfusion injury (IRI) is one of the most important causes of kidney injury, which is possibly gender-related. This study was designed to investigate the role of γ-aminobutyric acid (GABA) against IRI in ovariectomized estradiol-treated rats. Methods: Thirty-five ovariectomized Wistar rats were used in six experimental groups. The first three groups did not subject to estradiol treatment and assigned as sham-operated, control, and GABA-treated groups. GABA (50 μmol/kg) and saline were injected in the treated and control groups 30 min before the surgery, respectively. The second three groups received the same treatments but received estradiol valerate (500 μg/kg, intramuscularly) 3 days prior to the surgery. The IRI was induced in the control and treated groups by clamping the renal artery for 45 min and then 24 h of reperfusion. All animals were sacrificed for the measurements. Results: The serum levels of creatinine and blood urea nitrogen, kidney weight, and kidney tissue damage score significantly increased in the IRI rats (P < 0.05). GABA significantly decreased the aforementioned parameters (P < 0.05). The uterus weight increased significantly in rats that received estradiol (P < 0.05). Serum and kidney levels of nitrite (nitric oxide metabolite) did not alter significantly. Serum level of malondialdehyde increased significantly in the ovariectomized rats exposed to IRI (P < 0.05). Conclusions: It seems that GABA improved IRI in ovariectomized rats. Estradiol was also nephroprotective against IRI. However, co-administration of estradiol and GABA could not protect the kidney against IRI.
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Affiliation(s)
- Nahid Talebi
- Water and Electrolytes Research Center, Isfahan University of Medical Sciences, Isfahan, Iran; Department of Biology, Falavarjan Branch, Islamic Azad University, Isfahan, Iran
| | - Mehdi Nematbakhsh
- Water and Electrolytes Research Center, Isfahan University of Medical Sciences, Isfahan, Iran; Department of Physiology, Isfahan University of Medical Sciences, Isfahan, Iran; Isfahan Institute of Basic and Applied Sciences Research, Isfahan, Iran
| | - Ramesh Monajemi
- Department of Biology, Falavarjan Branch, Islamic Azad University, Isfahan, Iran
| | - Safoora Mazaheri
- Water and Electrolytes Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Ardeshir Talebi
- Water and Electrolytes Research Center, Isfahan University of Medical Sciences, Isfahan, Iran; Department of Clinical Pathology, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Marzieh Vafapour
- Water and Electrolytes Research Center, Isfahan University of Medical Sciences, Isfahan, Iran; Department of Biology, Falavarjan Branch, Islamic Azad University, Isfahan, Iran
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18
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Liu Z, Zhang L, He Q, Liu X, Chukwunweike Ikechukwu O, Tong L, Guo L, Yang H, Zhang Q, Zhao H, Gu X. Effect of Baicalin-loaded PEGylated cationic solid lipid nanoparticles modified by OX26 antibody on regulating the levels of baicalin and amino acids during cerebral ischemia–reperfusion in rats. Int J Pharm 2015; 489:131-8. [DOI: 10.1016/j.ijpharm.2015.04.049] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2015] [Revised: 03/31/2015] [Accepted: 04/16/2015] [Indexed: 01/31/2023]
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19
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Kaufmann J, Martinka P, Moede O, Sendeski M, Steege A, Fähling M, Hultström M, Gaestel M, Moraes-Silva IC, Nikitina T, Liu ZZ, Zavaritskaya O, Patzak A. Noradrenaline enhances angiotensin II responses via p38 MAPK activation after hypoxia/re-oxygenation in renal interlobar arteries. Acta Physiol (Oxf) 2015; 213:920-32. [PMID: 25594617 DOI: 10.1111/apha.12457] [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: 02/09/2014] [Revised: 03/14/2014] [Accepted: 01/11/2015] [Indexed: 11/29/2022]
Abstract
AIM Hypoxia and sympathetic activation are main factors in the pathogenesis of acute kidney injury (AKI). We tested the hypothesis that noradrenaline (NE) in combination with hypoxia aggravates the vasoreactivity of renal arteries after hypoxia/re-oxygenation (H/R). We tested the role of adrenergic receptors and p38 MAPK using an in vitro H/R protocol. METHODS Mouse interlobar arteries (ILA) and afferent arterioles (AA) were investigated under isometric and isotonic conditions respectively. The in vitro protocol consisted of 60-min hypoxia and control condition, respectively, 10-min re-oxygenation followed by concentration-response curves for Ang II or endothelin. RESULTS Hypoxia reduced the response to Ang II. Hypoxia and NE (10(-9) mol L(-1) ) together increased it in ILA and AA. In ILA, NE alone influenced neither Ang II responses under control conditions nor endothelin responses after hypoxia. Prazosin or yohimbine treatment did not significantly influence the NE+hypoxia effect. The combination of prazosin and yohimbine or propranolol alone inhibited the effect of NE+hypoxia. BRL37344 (β3 receptor agonist) mimicked the NE effect. In contrast, the incubation with β3 receptor blocker did not influence the mentioned effect. Phosphorylation of p38 MAPK and MLC(20) was increased after H/R with NE and Ang II treatment. The selective p38 MAPK inhibitor SB202190 blocked the NE+hypoxia effect on the Ang II response. CONCLUSION The results suggest an interaction of NE and hypoxia in enhancing vasoreactivity, which may be important for the pathogenesis of AKI. The effect of NE+hypoxia in ILA is mediated by several adrenergic receptors and requires the p38 MAPK activation.
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Affiliation(s)
- J. Kaufmann
- Institute of Vegetative Physiology; Charité-Universitätsmedizin Berlin; Berlin Germany
| | - P. Martinka
- Institute of Vegetative Physiology; Charité-Universitätsmedizin Berlin; Berlin Germany
| | - O. Moede
- Institute of Vegetative Physiology; Charité-Universitätsmedizin Berlin; Berlin Germany
| | - M. Sendeski
- Institute of Vegetative Physiology; Charité-Universitätsmedizin Berlin; Berlin Germany
| | - A. Steege
- Department of Internal Medicine II; University Medical Center Regensburg; Regensburg Germany
| | - M. Fähling
- Institute of Vegetative Physiology; Charité-Universitätsmedizin Berlin; Berlin Germany
| | - M. Hultström
- Institute of Medical Cell Biology; Uppsala University; Uppsala Sweden
| | - M. Gaestel
- Institute of Biochemistry; Hannover Medical School; Hannover Germany
| | - I. C. Moraes-Silva
- Heart Institute; University of São Paulo; School of Medicine; São Paulo Brazil
| | - T. Nikitina
- Institute of Vegetative Physiology; Charité-Universitätsmedizin Berlin; Berlin Germany
| | - Z. Z. Liu
- Institute of Vegetative Physiology; Charité-Universitätsmedizin Berlin; Berlin Germany
| | - O. Zavaritskaya
- Institute of Vegetative Physiology; Charité-Universitätsmedizin Berlin; Berlin Germany
- Cardiovascular Physiology; Centre for Biomedicine and Medical Technology Mannheim; Ruprecht-Karls-University Heidelberg; Mannheim Germany
| | - A. Patzak
- Institute of Vegetative Physiology; Charité-Universitätsmedizin Berlin; Berlin Germany
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20
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Kobuchi S, Tanaka R, Shintani T, Suzuki R, Tsutsui H, Ohkita M, Matsumura Y, Ayajiki K. Mechanisms underlying the renoprotective effect of GABA against ischaemia/reperfusion-induced renal injury in rats. Clin Exp Pharmacol Physiol 2015; 42:278-86. [DOI: 10.1111/1440-1681.12350] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2014] [Revised: 11/06/2014] [Accepted: 12/02/2014] [Indexed: 11/28/2022]
Affiliation(s)
- Shuhei Kobuchi
- Department of Pharmacy; School of Pharmacy; Hyogo University of Health Sciences; Kobe Hyogo Japan
- Laboratory of Pathological and Molecular Pharmacology; Osaka University of Pharmaceutical Sciences; Takatsuki Osaka Japan
| | - Ryosuke Tanaka
- Laboratory of Pathological and Molecular Pharmacology; Osaka University of Pharmaceutical Sciences; Takatsuki Osaka Japan
| | - Takuya Shintani
- Laboratory of Pathological and Molecular Pharmacology; Osaka University of Pharmaceutical Sciences; Takatsuki Osaka Japan
| | - Rie Suzuki
- Laboratory of Pathological and Molecular Pharmacology; Osaka University of Pharmaceutical Sciences; Takatsuki Osaka Japan
| | - Hidenobu Tsutsui
- Laboratory of Pathological and Molecular Pharmacology; Osaka University of Pharmaceutical Sciences; Takatsuki Osaka Japan
- Laboratory of Clinical Pharmacology; Faculty of Pharmacy; Osaka Ohtani University; Tondabayashi Osaka Japan
| | - Mamoru Ohkita
- Laboratory of Pathological and Molecular Pharmacology; Osaka University of Pharmaceutical Sciences; Takatsuki Osaka Japan
| | - Yasuo Matsumura
- Laboratory of Pathological and Molecular Pharmacology; Osaka University of Pharmaceutical Sciences; Takatsuki Osaka Japan
| | - Kazuhide Ayajiki
- Department of Pharmacy; School of Pharmacy; Hyogo University of Health Sciences; Kobe Hyogo Japan
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Kim JY, Ho H, Kim N, Liu J, Tu CL, Yenari MA, Chang W. Calcium-sensing receptor (CaSR) as a novel target for ischemic neuroprotection. Ann Clin Transl Neurol 2014; 1:851-66. [PMID: 25540800 PMCID: PMC4265057 DOI: 10.1002/acn3.118] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2014] [Revised: 08/14/2014] [Accepted: 08/15/2014] [Indexed: 01/04/2023] Open
Abstract
Object Ischemic brain injury is the leading cause for death and long-term disability in patients who suffer cardiac arrest and embolic stroke. Excitotoxicity and subsequent Ca2+-overload lead to ischemic neuron death. We explore a novel mechanism concerning the role of the excitatory extracellular calcium-sensing receptor (CaSR) in the induction of ischemic brain injury. Method Mice were exposed to forebrain ischemia and the actions of CaSR were determined after its genes were ablated specifically in hippocampal neurons or its activities were inhibited pharmacologically. Since the CaSR forms a heteromeric complex with the inhibitory type B γ-aminobutyric acid receptor 1 (GABABR1), we compared neuronal responses to ischemia in mice deficient in CaSR, GABABR1, or both, and in mice injected locally or systemically with a specific CaSR antagonist (or calcilytic) in the presence or absence of a GABABR1 agonist (baclofen). Results Both global and focal brain ischemia led to CaSR overexpression and GABABR1 downregulation in injured neurons. Genetic ablation of Casr genes or blocking CaSR activities by calcilytics rendered robust neuroprotection and preserved learning and memory functions in ischemic mice, partly by restoring GABABR1 expression. Concurrent ablation of Gabbr1 gene blocked the neuroprotection caused by the Casr gene knockout. Coinjection of calcilytics with baclofen synergistically enhanced neuroprotection. This combined therapy remained robust when given 6 h after ischemia. Interpretation Our study demonstrates a novel receptor interaction, which contributes to ischemic neuron death through CaSR upregulation and GABABR1 downregulation, and feasibility of neuroprotection by concurrently targeting these two receptors.
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Affiliation(s)
- Jong Youl Kim
- Endocrine Unit, University of California San Francisco and Veterans Affairs Medical Center San Francisco, California, 94121 ; Department of Neurology, University of California San Francisco and Veterans Affairs Medical Center San Francisco, California, 94121
| | - Hanson Ho
- Endocrine Unit, University of California San Francisco and Veterans Affairs Medical Center San Francisco, California, 94121
| | - Nuri Kim
- Department of Neurology, University of California San Francisco and Veterans Affairs Medical Center San Francisco, California, 94121
| | - Jialing Liu
- Neurological Surgery, University of California San Francisco and Veterans Affairs Medical Center San Francisco, California, 94121
| | - Chia-Ling Tu
- Endocrine Unit, University of California San Francisco and Veterans Affairs Medical Center San Francisco, California, 94121
| | - Midori A Yenari
- Department of Neurology, University of California San Francisco and Veterans Affairs Medical Center San Francisco, California, 94121
| | - Wenhan Chang
- Endocrine Unit, University of California San Francisco and Veterans Affairs Medical Center San Francisco, California, 94121
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22
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Ali BH, Al-Salam S, Al Za'abi M, Al Balushi KA, AlMahruqi AS, Beegam S, Al-Lawatia I, Waly MI, Nemmar A. Renoprotective effects of gamma-aminobutyric acid on cisplatin-induced acute renal injury in rats. Basic Clin Pharmacol Toxicol 2014; 116:62-8. [PMID: 25052259 DOI: 10.1111/bcpt.12291] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2014] [Accepted: 06/13/2014] [Indexed: 11/27/2022]
Abstract
To investigate the effect of gamma-aminobutyric acid (GABA) on acute renal injury (ARI), we used here a rat model of acute tubular necrosis induced by the anticancer drug cisplatin (CP). GABA was given orally (100 or 500 mg/kg/day for ten consecutive days), and on the 6th day, some of the treated rats were also injected intraperitoneally with either saline or CP (6 mg/kg). Four days after CP treatment, urine was collected from all rats, which were then anaesthetized for blood pressure and renal blood flow monitoring. This was followed by intravenous injection of norepinephrine for the assessment of renal vasoconstrictor responses. Thereafter, blood and kidneys were collected for measurement of several functional, biochemical and structural parameters. GABA treatment (at 500 but not 100 mg/kg) significantly mitigated all the measured physiological and biochemical indices. Sections from saline- and GABA-treated rats showed apparently normal proximal tubules. However, kidneys of CP-treated rats had a moderate degree of necrosis. This was markedly lessened when CP was given simultaneously with GABA (500 mg/kg). The concentration of platinum in the cortical tissues was not significantly altered by GABA treatment. The results suggested that GABA can ameliorate CP nephrotoxicity in rats. Pending further pharmacological and toxicological studies, GABA may be considered a potentially useful nephroprotective agent in CP-induced ARI.
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Affiliation(s)
- Badreldin H Ali
- Department of Pharmacology and Clinical Pharmacy, College of Medicine and Health Sciences, Sultan Qaboos University, Oman, UAE
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Takano K, Yatabe MS, Abe A, Suzuki Y, Sanada H, Watanabe T, Kimura J, Yatabe J. Characteristic expressions of GABA receptors and GABA producing/transporting molecules in rat kidney. PLoS One 2014; 9:e105835. [PMID: 25188493 PMCID: PMC4154856 DOI: 10.1371/journal.pone.0105835] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2014] [Accepted: 07/25/2014] [Indexed: 01/15/2023] Open
Abstract
Gamma-aminobutyric acid (GABA) is an important neurotransmitter, but recent reports have revealed the expression of GABAergic components in peripheral, non-neural tissues. GABA administration induces natriuresis and lowers blood pressure, suggesting renal GABA targets. However, systematic evaluation of renal GABAergic components has not been reported. In this study, kidney cortices of Wistar-Kyoto rats (WKY) were used to assay for messenger RNAs of GABA-related molecules using RT-PCR. In WKY kidney cortex, GABAA receptor subunits, α1, β3, δ, ε and π, in addition to both types of GABAB receptors, R1 and R2, and GABAC receptor ρ1 and ρ2 subunit mRNAs were detected. Kidney cortex also expressed mRNAs of glutamate decarboxylase (GAD) 65, GAD67, 4-aminobutyrate aminotransferase and GABA transporter, GAT2. Western blot and/or immunohistochemistry were performed for those molecules detected by RT-PCR. By immunofluorescent observation, co-staining of α1, β3, and π subunits was observed mainly on the apical side of cortical tubules, and immunoblot of kidney protein precipitated with π subunit antibody revealed α1 and β3 subunit co-assembly. This is the first report of GABAA receptor π subunit in the kidney. In summary, unique set of GABA receptor subunits and subtypes were found in rat kidney cortex. As GABA producing enzymes, transporters and degrading enzyme were also detected, a possible existence of local renal GABAergic system with an autocrine/paracrine mechanism is suggested.
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Affiliation(s)
- Kozue Takano
- Department of Pharmacology, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Midori Sasaki Yatabe
- Department of Pharmacology, Fukushima Medical University School of Medicine, Fukushima, Japan
- * E-mail: (MSY); (JY)
| | - Asami Abe
- Department of Pharmacology, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Yu Suzuki
- Department of Pharmacology, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Hironobu Sanada
- Division of Health Science Research, Fukushima Welfare Federation of Agricultural Cooperatives, Fukushima, Japan
| | - Tsuyoshi Watanabe
- Department of Nephrology, Hypertension, Diabetology, Endocrinology and Metabolism, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Junko Kimura
- Department of Pharmacology, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Junichi Yatabe
- Department of Pharmacology, Fukushima Medical University School of Medicine, Fukushima, Japan
- Department of Nephrology, Hypertension, Diabetology, Endocrinology and Metabolism, Fukushima Medical University School of Medicine, Fukushima, Japan
- * E-mail: (MSY); (JY)
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Lin M, Li L, Li L, Pokhrel G, Qi G, Rong R, Zhu T. The protective effect of baicalin against renal ischemia-reperfusion injury through inhibition of inflammation and apoptosis. Altern Ther Health Med 2014; 14:19. [PMID: 24417870 PMCID: PMC3893527 DOI: 10.1186/1472-6882-14-19] [Citation(s) in RCA: 87] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2013] [Accepted: 01/09/2014] [Indexed: 11/10/2022]
Abstract
Background Renal ischemia-reperfusion injury (IRI) increases the rates of acute kidney failure, delayed graft function, and early mortality after kidney transplantation. The pathophysiology involved includes oxidative stress, mitochondrial dysfunction, and immune-mediated injury. The anti-oxidation, anti-apoptosis, and anti-inflammation properties of baicalin, a flavonoid glycoside isolated from Scutellaria baicalensis, have been verified. This study therefore assessed the effects of baicalin against renal IRI in rats. Methods Baicalin was intraperitoneally injected 30 min before renal ischemia. Serum and kidneys were harvested 24 h after reperfusion. Renal function and histological changes were assessed. Markers of oxidative stress, the Toll-like receptor (TLR)2 and TLR4 signaling pathway, mitochondrial stress, and cell apoptosis were also evaluated. Results Baicalin treatment decreased oxidative stress and histological injury, and improved kidney function, as well as inhibiting proinflammatory responses and tubular apoptosis. Baicalin pretreatment also reduced the expression of TLR2, TLR4, MyD88, p-NF-κB, and p-IκB proteins, as well as decreasing caspase-3 activity and increasing the Bcl-2/Bax ratio. Conclusions Baicalin may attenuate renal ischemia-reperfusion injury by inhibiting proinflammatory responses and mitochondria-mediated apoptosis. These effects are associated with the TLR2/4 signaling pathway and mitochondrial stress.
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Mild Hypothermia Suppresses Calcium-Sensing Receptor (CaSR) Induction Following Forebrain Ischemia While Increasing GABA-B Receptor 1 (GABA-B-R1) Expression. Transl Stroke Res 2013; 2:195-201. [PMID: 21731589 DOI: 10.1007/s12975-011-0082-4] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Hypothermia improves neurological outcome from cardiac arrest. The mechanisms of protection are multifold, but identifying some may be useful in exploring potential therapeutic targets. The extracellular calcium-sensing receptor (CaSR) was originally found in parathyroid cells in which the receptor senses minute changes in extracellular [Ca(2+)] and promotes Ca(2+) influx and intracellular Ca(2+) release. The CaSR is broadly expressed in the CNS and colocalized with the inhibitory γ-aminobutyric acid-B receptor 1 (GABA-B-R1). In hippocampal neurons, GABA-B-R1 heterodimerizes with CaSR and suppresses CaSR expression. To study the interplay between these two receptors in the development of ischemic cell death and neuroprotection by hypothermia, we subjected C57/BL6 mice to global cerebral ischemia by performing bilateral carotid artery occlusion (10 min) followed by reperfusion for 1-3 days with or without therapeutic hypothermia (33°C for 3 h at the onset of reperfusion). Terminal deoxynucleotidyl transferase dUTP nick end labeling staining and immunohistochemistry showed that forebrain ischemia increased CaSR expression, decreased GABA-B-R1 expression, and promoted cell death. These changes were particularly evident in hippocampal neurons and could be reversed by mild hypothermia. The induction of CaSR, along with reciprocal decreases in GABA-B-R1 expression, may together potentiate ischemic neuronal death, suggesting a new therapeutic target for treatment of ischemic brain injury.
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Suzuki R, Maehara R, Kobuchi S, Tanaka R, Ohkita M, Matsumura Y. Beneficial effects of γ-aminobutyric acid on right ventricular pressure and pulmonary vascular remodeling in experimental pulmonary hypertension. Life Sci 2012; 91:693-8. [PMID: 22542556 DOI: 10.1016/j.lfs.2012.04.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2011] [Revised: 03/27/2012] [Accepted: 04/04/2012] [Indexed: 10/28/2022]
Abstract
AIMS It has been reported that activation of the sympathetic nervous system and increase in plasma norepinephrine (NE) levels are observed in patients with pulmonary hypertension (PH). γ-Aminobutyric acid (GABA) is one of the major inhibitory neurotransmitters in the central nervous system and suppresses peripheral sympathetic neurotransmission. This study investigated whether chronic treatment with GABA prevents the development of monocrotaline (MCT)-induced PH. To elucidate the relationship between the development of PH and sympathetic nerve activity, hemodynamic parameters, cardiac functions, and plasma NE concentrations as well as cardiac endothelin-1 (ET-1) contents of MCT-induced PH rats were evaluated with or without GABA treatment. MAIN METHODS Rats were injected with MCT (60 mg/kg) or saline subcutaneously and these rats were randomly divided into GABA (500 mg/kg/day for 4 weeks)- or vehicle-treated groups, respectively. KEY FINDING MCT-treated rats had higher right ventricular systolic pressures, right ventricle-to-left ventricle plus septum weight ratios, pulmonary arterial medial thickening, and plasma NE levels than those of saline-injected rats. MCT-induced alternations were significantly attenuated by treatment with GABA. In MCT-induced PH rats with or without GABA treatment, plasma NE levels were positively correlated with right ventricular systolic pressure. Right ventricular endothelin-1 (ET-1) contents were increased by MCT injection, but these increments were not affected by treatment with GABA. SIGNIFICANCE These results suggest that plasma NE levels play an important role in the development of MCT-induced PH in rats and that GABA exerts a preventive effect against MCT-induced PH by suppressing the sympathetic nervous system but not the cardiac ET-1 system.
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Affiliation(s)
- Rie Suzuki
- Laboratory of Pathological and Molecular Pharmacology, Osaka University of Pharmaceutical Sciences, 4-20-1 Nasahara, Takatsuki, Osaka, Japan
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Kobuchi S, Tanaka R, Shintani T, Suzuki R, Tsutsui H, Ohkita M, Ayajiki K, Matsumura Y. RETRACTION: Mechanisms Underlying the Renoprotective Effect of GABA against Ischemia/Reperfusion-Induced Renal Injury in Rats. J Pharmacol Exp Ther 2011; 338:767-74. [DOI: 10.1124/jpet.111.180174] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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