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Li S, Shi Y, Zhu J, Li J, Wang S, Liu C. Protective effect of oxytocin on vincristine-induced gastrointestinal dysmotility in mice. Front Pharmacol 2024; 15:1270612. [PMID: 38655179 PMCID: PMC11037254 DOI: 10.3389/fphar.2024.1270612] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Accepted: 02/26/2024] [Indexed: 04/26/2024] Open
Abstract
Aims: Vincristine (VCR), an antineoplastic drug, induces peripheral neuropathy characterized by nerve damage, limiting its use and reducing the quality of life of patients. VCR causes myenteric neuron damage, inhibits gastrointestinal motility, and results in constipation or paralytic ileus in patients. Oxytocin (OT) is an endogenous neuropeptide produced by the enteric nerve system, which regulates gastrointestinal motility and exerts neuroprotective effects. This study aimed to investigate whether OT can improve VCR-induced gastrointestinal dysmotility and evaluate the underlying mechanism. Methods: Mice were injected either with saline or VCR (0.1 mg/kg/d, i. p.) for 14 days, and OT (0.1 mg/kg/d, i.p.) was applied 1 h before each VCR injection. Gastrointestinal transit and the contractile activity of the isolated colonic segments were assessed. The concentration of OT in plasma was measured using ELISA. Immunofluorescence staining was performed to analyze myenteric neurons and reactive oxygen species (ROS) levels. Furthermore, the indicators of oxidative stress were detected. The protein expressions of Nrf2, ERK1/2, P-ERK1/2, p38, and P-p38 in the colon were tested using Western blot. Results: VCR reduced gastrointestinal transit and the responses of isolated colonic segments to electrical field stimulation and decreased the amount of neurons. Furthermore, VCR reduced neuronal nitric oxide synthase and choline acetyltransferase immunopositive neurons in the colonic myenteric nerve plexus. VCR increased the concentration of OT in plasma. Exogenous OT pretreatment ameliorated the inhibition of gastrointestinal motility and the injury of myenteric neurons caused by VCR. OT pretreatment also prevented the decrease of superoxide dismutase activity, glutathione content, total antioxidative capacity, and Nrf2 expression, the increase of ROS levels, and the phosphorylation of ERK1/2 and p38 MAPK following VCR treatment. Conclusion: Our results suggest that OT pretreatment can protect enteric neurons from VCR-induced injury by inhibiting oxidative stress and MAPK pathways (ERK1/2, p38). This may be the underlying mechanism by which it alleviates gastrointestinal dysmotility.
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Affiliation(s)
- Shuang Li
- Department of Physiology, School of Basic Medical Sciences, Cheeloo Medical College, Shandong University, Jinan, China
| | - Yao Shi
- Ministry of Education Key Laboratory of Protein, School of Life Sciences, Tsinghua University, Beijing, China
| | - Jianchun Zhu
- Department of Physiology, School of Basic Medical Sciences, Cheeloo Medical College, Shandong University, Jinan, China
| | - Jingxin Li
- Department of Physiology, School of Basic Medical Sciences, Cheeloo Medical College, Shandong University, Jinan, China
| | - Shuanglian Wang
- Medical Science and Technology Innovation Center, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
| | - Chuanyong Liu
- Department of Physiology, School of Basic Medical Sciences, Cheeloo Medical College, Shandong University, Jinan, China
- Provincial Key Lab of Mental Disorders, Shandong University, Jinan, China
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Karagedik MI, Yuksel U, Kartal B, Ceylan AF, Ogden M, Bakar B. Evaluation of the effectiveness of oxytocin and enalapril in the prevention of epidural fibrosis developed after laminectomy in rats. Injury 2023:110793. [PMID: 37211471 DOI: 10.1016/j.injury.2023.05.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 04/21/2023] [Accepted: 05/05/2023] [Indexed: 05/23/2023]
Abstract
INTRODUCTION Except for methylprednisolone, there is no current low-cost and low-side-effect drug/barrier method to prevent epidural fibrosis after spine surgery. However, the use of methylprednisolone has led to substantial controversy because of its serious side effects on wound healing. This study aimed to evaluate the effects of enalapril and oxytocin on preventing the development of epidural fibrosis in a rat laminectomy model. MATERIALS Under sedation anesthesia, T9, T10, and T11 laminectomy was performed on 24 Wistar Albino male rats. The animals were then separated into four groups; Sham group (only laminectomy was performed; n = 6), MP group (laminectomy was performed and 10 mg/kg/day methylprednisolone was administered intraperitoneally (ip) for 14 days; n = 6), ELP group (laminectomy was performed and 0.75 mg/kg/day enalapril was administered ip for 14 days; n = 6), OXT group (laminectomy was performed and 160 µg/kg/day oxytocin was administered ip for 14 days; n = 6). Four weeks after the laminectomy, all the rats were euthanised, and the spines were removed for histopathological, immunohistochemical, and biochemical examinations. RESULTS Histopathological examinations revealed that the degree of epidural fibrosis (X2=14.316, p = 0.003), collagen density (X2=16.050, p = 0.001), and fibroblast density (X2=17.500, p = 0.001) was higher in the Sham group and lower in the MP, ELP, and OXT groups. Immunohistochemical examinations showed that collagen type 1 immunoreactivity was higher in the Sham group and lower in the MP, ELP, and OXT groups (F = 54.950, p < 0.001). The highest level of α-smooth muscle actin immunoreactivity was seen in the Sham and OXT groups, and the lowest was in the MP and ELP groups (F = 33.357, p < 0.001). Biochemical analysis revealed that tissue levels of TNF-α, TGF-β, IL-6, CTGF, caspase-3, p-AMPK, pmTOR, and mTOR/pmTOR were higher in the Sham group and lower in MP, ELP, and OXT groups (p < 0.05). The GSH/GSSG levels were lower in the Sham group and higher in the other three groups (X2=21.600, p < 0.001). CONCLUSION The study results showed that enalapril and oxytocin, which are known to have anti-inflammatory, antioxidant, anti-apoptotic, and autophagy-related regenerative properties, could reduce the development of epidural fibrosis after laminectomy in rats.
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Affiliation(s)
| | - Ulas Yuksel
- Kirikkale University, Faculty of Medicine, Department of Neurosurgery, Kirikkale, Turkey
| | - Bahar Kartal
- Ankara Yıldırım Beyazıt University, Faculty of Medicine, Department of Histology and Embriology, Ankara, Turkey
| | - Asli Fahriye Ceylan
- Ankara Yıldırım Beyazıt University, Faculty of Medicine, Department of Medical Pharmacology, Ankara, Turkey
| | - Mustafa Ogden
- Kirikkale University, Faculty of Medicine, Department of Neurosurgery, Kirikkale, Turkey
| | - Bulent Bakar
- Kirikkale University, Faculty of Medicine, Department of Neurosurgery, Kirikkale, Turkey.
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Alqahtani MJ, Mostafa SA, Hussein IA, Elhawary S, Mokhtar FA, Albogami S, Tomczyk M, Batiha GES, Negm WA. Metabolic Profiling of Jasminum grandiflorum L. Flowers and Protective Role against Cisplatin-Induced Nephrotoxicity: Network Pharmacology and In Vivo Validation. Metabolites 2022; 12:metabo12090792. [PMID: 36144196 PMCID: PMC9502427 DOI: 10.3390/metabo12090792] [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: 07/27/2022] [Revised: 08/15/2022] [Accepted: 08/22/2022] [Indexed: 12/02/2022] Open
Abstract
Cisplatin (CP) is a powerful chemotherapeutic agent; however, its therapeutic use is restricted due to its nephrotoxicity. In this work, we profiled the phytoconstituents of Jasminum grandiflorum flower extract (JGF) using LC-MS/MS and explored the possible molecular mechanisms against acute renal failure through pharmacological network analysis. Furthermore, the possible molecular mechanisms of JGF against acute renal failure were verified in an in vivo nephrotoxicity model caused by cisplatin. LC-MS analysis furnished 26 secondary metabolites. Altogether, there were 112 total hit targets for the identified metabolites, among which 55 were potential consensus targets related to nephrotoxicity based on the network pharmacology approach. Upon narrowing the scope to acute renal failure, using the DisGeNET database, only 30 potential targets were determined. The computational pathway analysis illustrated that JGF might inhibit renal failure through PI3K-Akt, MAPK signaling pathway, and EGFR tyrosine kinase inhibitor resistance. This study was confirmed by in vivo experiment in which kidneys were collected for histopathology and gene expression of mitogen-activated protein kinase 4 (MKK4), MKK7, I-CAM 1, IL-6, and TNF receptor-associated factor 2 (TRAF2). The animal-administered cisplatin exhibited a substantial rise in the expression levels of the MMK4, MKK7, I CAM 1, and TRFA2 genes compared to the control group. To summarize, J. grandiflorum could be a potential source for new reno-protective agents. Further experiments are needed to confirm the obtained activities and determine the therapeutic dose and time.
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Affiliation(s)
- Moneerah J. Alqahtani
- Department of Pharmacognosy, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia
| | - Sally A. Mostafa
- Department of Medical Biochemistry and Molecular Biology, Faculty of Medicine, Mansoura University, Mansoura 35511, Egypt
| | - Ismail A. Hussein
- Department of Pharmacognosy and Medicinal Plants, Faculty of Pharmacy (Boys), Al-Azhar University, Cairo 11884, Egypt
| | - Seham Elhawary
- Department of Pharmacognosy, Faculty of Pharmacy, Cairo University, Cairo 11562, Egypt
| | - Fatma A. Mokhtar
- Department of Pharmacognosy, Faculty of Pharmacy, ALSalam University, Al Gharbiya, Kafr El Zayat 31616, Egypt
| | - Sarah Albogami
- Department of Biotechnology, College of Science, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
| | - Michał Tomczyk
- Department of Pharmacognosy, Medical University of Białystok, ul. Mickiewicza 2a, 15-230 Białystok, Poland
| | - Gaber El-Saber Batiha
- Department of Pharmacology and Therapeutics, Faculty of Veterinary Medicine, Damanhour University, Damanhour 22511, Egypt
| | - Walaa A. Negm
- Department of Pharmacognosy, Faculty of Pharmacy, Tanta University, Tanta 31527, Egypt
- Correspondence:
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Marazziti D, Diep PT, Carter S, Carbone MG. Oxytocin: An Old Hormone, A Novel Psychotropic Drug And Possible Use In Treating Psychiatric Disorders. Curr Med Chem 2022; 29:5615-5687. [PMID: 35894453 DOI: 10.2174/0929867329666220727120646] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 03/17/2022] [Accepted: 04/19/2022] [Indexed: 11/22/2022]
Abstract
BACKGROUND Oxytocin is a nonapeptide synthesized in the paraventricular and supraoptic nuclei of the hypothalamus. Historically, this molecule has been involved as a key factor in the formation of infant attachment, maternal behavior and pair bonding and, more generally, in linking social signals with cognition, behaviors and reward. In the last decades, the whole oxytocin system has gained a growing interest as it was proposed to be implicated in etiopathogenesis of several neurodevelopmental and neuropsychiatric disorders. METHODS With the main goal of an in-depth understanding of the oxytocin role in the regulation of different functions and complex behaviors as well as its intriguing implications in different neuropsychiatric disorders, we performed a critical review of the current state of art. We carried out this work through PubMed database up to June 2021 with the search terms: 1) "oxytocin and neuropsychiatric disorders"; 2) "oxytocin and neurodevelopmental disorders"; 3) "oxytocin and anorexia"; 4) "oxytocin and eating disorders"; 5) "oxytocin and obsessive-compulsive disorder"; 6) "oxytocin and schizophrenia"; 7) "oxytocin and depression"; 8) "oxytocin and bipolar disorder"; 9) "oxytocin and psychosis"; 10) "oxytocin and anxiety"; 11) "oxytocin and personality disorder"; 12) "oxytocin and PTSD". RESULTS Biological, genetic, and epigenetic studies highlighted quality and quantity modifications in the expression of oxytocin peptide or in oxytocin receptor isoforms. These alterations would seem to be correlated with a higher risk of presenting several neuropsychiatric disorders belonging to different psychopathological spectra. Collaterally, the exogenous oxytocin administration has shown to ameliorate many neuropsychiatric clinical conditions. CONCLUSION Finally, we briefly analyzed the potential pharmacological use of oxytocin in patient with severe symptomatic SARS-CoV-2 infection due to its anti-inflammatory, anti-oxidative and immunoregulatory properties.
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Affiliation(s)
- Donatella Marazziti
- Department of Clinical and Experimental Medicine, Section of Psychiatry, University of Pisa, Italy.,Saint Camillus International University of Health and Medical Sciences, Rome, Italy
| | - Phuoc-Tan Diep
- Department of Histopathology, Royal Lancaster Infirmary, University Hospitals of Morecambe Bay NHS Foundation Trust, Lancaster, United Kingdom
| | - Sue Carter
- Director Kinsey Institute, Indiana University, Bloomington, IN, USA
| | - Manuel G Carbone
- Department of Medicine and Surgery, Division of Psychiatry, University of Insubria, 21100 Varese, Italy
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Sahin H, Yucel O, Emik S, Senturk GE. Protective Effects of Intranasally Administrated Oxytocin-Loaded Nanoparticles on Pentylenetetrazole-Kindling Epilepsy in Terms of Seizure Severity, Memory, Neurogenesis, and Neuronal Damage. ACS Chem Neurosci 2022; 13:1923-1937. [PMID: 35713692 PMCID: PMC9264347 DOI: 10.1021/acschemneuro.2c00124] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
Pentylenetetrazole (PTZ)-induced kindling is an animal model for studying human temporal lobe epilepsy (TLE), which is characterized by alterations of hippocampal neurons and memory. Although the intranasal (IN) administration of oxytocin (OT) has limited efficiency, nanoparticles (NPs) are a promising candidate to deliver OT to the brain. However, there are very limited data on epilepsy research about oxytocin-loaded nanoparticles (NP-OTs). The aim of this study is to investigate the effects of IN administration of chronic NP-OTs on the hippocampus of PTZ-induced male epileptic rats in terms of seizure severity, memory, neurogenesis, and neuronal damage. Saline/OT/NP-OTs were administrated to both control (Ctrl) and PTZ groups intranasally. Consequently, saline and PTZ were injected, respectively, 25 times every 48 h. Then, seizure severity (score and latency) was calculated for the PTZ groups. A spatial working memory evaluation test (SWMET) was performed after the last injection. Hippocampus histopathology, neurogenesis, and apoptosis were demonstrated. Serum total antioxidant status (TAS) and total oxidant status (TOS) levels and the oxidative stress index (OSI) were measured. We showed that OTs and NP-OTs prevented the kindling development and had positive effects on seizure severity. SWMET-related behaviors were also recovered in the PTZ + NP-OT group. A significant increase of neurogenesis and decrease of apoptosis in the hippocampus of the PTZ + NP-OT group were observed, while OTs and NP-OTs had protective effects against PTZ-induced damage to hippocampal neurons. Our results indicate that the chronic administration of NP-OTs may have positive effects on hippocampal damage via increasing neurogenesis and decreasing apoptosis and seizure severity.
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Affiliation(s)
- Hakan Sahin
- Department
of Histology and Embryology, Cerrahpasa Faculty of Medicine, Istanbul University—Cerrahpasa, Istanbul 34098, Turkey
| | - Oguz Yucel
- Department
of Chemical Engineering, Faculty of Engineering, Istanbul University—Cerrahpasa, Istanbul 34320, Turkey
| | - Serkan Emik
- Department
of Chemical Engineering, Faculty of Engineering, Istanbul University—Cerrahpasa, Istanbul 34320, Turkey
| | - Gozde Erkanli Senturk
- Department
of Histology and Embryology, Cerrahpasa Faculty of Medicine, Istanbul University—Cerrahpasa, Istanbul 34098, Turkey
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6
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Liu Z, Xu Y, Bai X, Guo L, Li X, Gao J, Teng Y, Yu P. Prediction of the mechanisms of action of Zhibai Dihaung Granule in cisplatin-induced acute kidney injury: A network pharmacology study and experimental validation. JOURNAL OF ETHNOPHARMACOLOGY 2022; 292:115241. [PMID: 35351575 DOI: 10.1016/j.jep.2022.115241] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Revised: 03/03/2022] [Accepted: 03/24/2022] [Indexed: 06/14/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Zhibai Dihuang Granule (ZDG) is known as traditional Chinese patent medicine with the functions of "Ziyin decrease internal heat" in Traditional Chinses medicine. In clinical, it is also used to treat various kidney diseases. AIM OF THE STUDY We aimed to provide a basis for the curative effect of ZDG on acute kidney injury induced by cisplatin (CIAKI). MATERIALS AND METHODS The active compounds and protein targets of ZDG, as well as the potential targets of the CIAKI were searched from the database. The protein-protein interaction (PPI) network diagram and the drug-compounds-targets-disease network were constructed. Enrichment analysis was performed by Gene Ontology (GO) enrichment and Kyoto Encyclopedia of Genes and Genomes (KEGG). Subsequently, the effect of ZDG on the prevention and treatment of CIAKI was experimentally validated in vivo and in vitro. RESULTS From the database, we screened 22 active compounds of ZDG and 226 related targets. We obtained 498 gene targets related to CIAKI, among which 40 genes overlapped with ZDG-related targets. Go enrichment and KEGG analysis got 339 terms and 64 pathways, respectively. Based on the above study, we speculated that ZDG has the potential effect on treatment CIAKI, and the mechanism may be related to cell apoptosis and inflammation. The results in vitro experiments showed that ZDG reduced the cytotoxicity of cisplatin to HK-2 and 293T cells, but did not affect the antitumor effect of cisplatin. Moreover, in vivo experiments further proved that ZDG effectively controlled kidney damage caused by cisplatin in SD rats. The results showed that ZDG could regulate the expression of CASP3, p65 and MAPK pathway related proteins, suggesting that ZDG's prevention of CIAKI may be related to apoptosis and inflammatory response. CONCLUSIONS Our study showed that ZDG could prevent and treat CIAKI by inhibiting cell apoptosis and inflammation, which provided a new efficacy and clinical application for ZDG.
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Affiliation(s)
- Zhen Liu
- China International Science and Technology Cooperation Base of Food Nutrition/Safety and Medicinal Chemistry, Key Laboratory of Industrial Fermentation Microbiology of Ministry of Education, Tianjin Key Laboratory of Industry Microbiology, College of Biotechnology, Tianjin University of Science & Technology, Tianjin, 300457, PR China.
| | - Ye Xu
- China International Science and Technology Cooperation Base of Food Nutrition/Safety and Medicinal Chemistry, Key Laboratory of Industrial Fermentation Microbiology of Ministry of Education, Tianjin Key Laboratory of Industry Microbiology, College of Biotechnology, Tianjin University of Science & Technology, Tianjin, 300457, PR China
| | - Xinming Bai
- China International Science and Technology Cooperation Base of Food Nutrition/Safety and Medicinal Chemistry, Key Laboratory of Industrial Fermentation Microbiology of Ministry of Education, Tianjin Key Laboratory of Industry Microbiology, College of Biotechnology, Tianjin University of Science & Technology, Tianjin, 300457, PR China
| | - Lvqian Guo
- China International Science and Technology Cooperation Base of Food Nutrition/Safety and Medicinal Chemistry, Key Laboratory of Industrial Fermentation Microbiology of Ministry of Education, Tianjin Key Laboratory of Industry Microbiology, College of Biotechnology, Tianjin University of Science & Technology, Tianjin, 300457, PR China
| | - Xinran Li
- China International Science and Technology Cooperation Base of Food Nutrition/Safety and Medicinal Chemistry, Key Laboratory of Industrial Fermentation Microbiology of Ministry of Education, Tianjin Key Laboratory of Industry Microbiology, College of Biotechnology, Tianjin University of Science & Technology, Tianjin, 300457, PR China
| | - Junling Gao
- China International Science and Technology Cooperation Base of Food Nutrition/Safety and Medicinal Chemistry, Key Laboratory of Industrial Fermentation Microbiology of Ministry of Education, Tianjin Key Laboratory of Industry Microbiology, College of Biotechnology, Tianjin University of Science & Technology, Tianjin, 300457, PR China
| | - Yuou Teng
- China International Science and Technology Cooperation Base of Food Nutrition/Safety and Medicinal Chemistry, Key Laboratory of Industrial Fermentation Microbiology of Ministry of Education, Tianjin Key Laboratory of Industry Microbiology, College of Biotechnology, Tianjin University of Science & Technology, Tianjin, 300457, PR China.
| | - Peng Yu
- China International Science and Technology Cooperation Base of Food Nutrition/Safety and Medicinal Chemistry, Key Laboratory of Industrial Fermentation Microbiology of Ministry of Education, Tianjin Key Laboratory of Industry Microbiology, College of Biotechnology, Tianjin University of Science & Technology, Tianjin, 300457, PR China.
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7
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Palipoch S, Punsawad C, Koomhin P, Poonsawat W. Thunbergia laurifolia aqueous leaf extract ameliorates paraquat-induced kidney injury by regulating NADPH oxidase in rats. Heliyon 2022; 8:e09234. [PMID: 35399379 PMCID: PMC8987613 DOI: 10.1016/j.heliyon.2022.e09234] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 01/17/2022] [Accepted: 03/29/2022] [Indexed: 01/09/2023] Open
Abstract
We aim to study the antioxidant ability of Thunbergia laurifolia (TL) aqueous leaf extract against PQ-induced kidney injury. Rats were divided into four groups (n = 4 per group): control group, the rats received subcutaneous injection of 1 ml/kg body weight (BW) normal saline; PQ group, the rats received subcutaneous injection of 18 mg/kg BW paraquat dichloride; PQ + TL-low dose (LD) group, the rats received subcutaneous injection of 18 mg/kg BW paraquat dichloride and were orally gavaged with TL leaf extract (100 mg/kg BW); and PQ + TL-high dose (HD) group, the rats received subcutaneous injection of 18 mg/kg BW paraquat dichloride and were orally gavaged with TL leaf extract (200 mg/kg BW). This study analyzed blood urea nitrogen (BUN) and creatinine levels, renal malondialdehyde (MDA) levels, kidney histopathology, mRNA expressions of renal NADPH oxidase (NOX) and protein expressions of renal NOX-1 and NOX-4 using immunohistochemistry. The PQ group showed a significant increase in BUN and creatinine levels, renal MDA level, and a upregulation of the mRNA expression of renal NOX compared with the control group. It also demonstrated mild hydropic degeneration of the tubules. Immunohistochemistry displayed a significant increase in the protein expressions of renal NOX-1 and NOX-4 compared with the control group. TL aqueous leaf extract especially in the high dose group significantly reduced the BUN and creatinine levels, the renal MDA level, and downregulated the mRNA expression of renal NOX and protein expressions of renal NOX-1 and NOX-4 compared with the PQ group. Furthermore, it can improve PQ-induced kidney injury. TL aqueous leaf extract can ameliorate PQ-induced kidney injury by regulating oxidative stress through inhibiting NOX, especially NOX-1 and NOX-4 expressions.
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8
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Palipoch S, Punsawad C, Koomhin P, Na-Ek P, Poonsawat W, Kimseng R, Chotipong P, Bunluepuech K, Yusakul G, Suwannalert P. Aqueous Thunbergia laurifolia leaf extract alleviates paraquat-induced lung injury in rats by inhibiting oxidative stress and inflammation. BMC Complement Med Ther 2022; 22:83. [PMID: 35317802 PMCID: PMC8939148 DOI: 10.1186/s12906-022-03567-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Accepted: 03/11/2022] [Indexed: 11/30/2022] Open
Abstract
Background Paraquat (PQ) has been reported to have a high mortality rate. The major target organ of PQ poisoning is the lungs. The pathogenesis of PQ-induced lung injury involves oxidative stress and inflammation. Unfortunately, there is still no effective antidote for PQ poisoning. We hypothesized that aqueous Thunbergia laurifolia (TL) leaf extract is a possible antidote for PQ-induced lung injury. Methods The total phenolic content and caffeic acid content of an aqueous extract of TL leaves were analyzed. Male Wistar rats were randomly divided into four groups (n = 4 per group): the control group (administered normal saline), the PQ group (administered 18 mg/kg body weight (BW) PQ dichloride subcutaneously), the PQ + TL-low-dose (LD) group (administered PQ dichloride subcutaneously and 100 mg/kg BW aqueous TL leaf extract by oral gavage) and the PQ + TL-high-dose (HD) group (administered PQ dichloride subcutaneously and 200 mg/kg BW aqueous TL leaf extract by oral gavage). Malondialdehyde (MDA) levels and lung histopathology were analyzed. In addition, the mRNA expression of NADPH oxidase (NOX), interleukin 1 beta (IL-1β), and tumor necrosis factor alpha (TNF-α) was assessed using reverse transcription-polymerase chain reaction (RT-PCR), and the protein expression of IL-1β and TNF-α was analyzed using immunohistochemistry. Results The total phenolic content of the extract was 20.1 ± 0.39 μg gallic acid equivalents (Eq)/mg extract, and the caffeic acid content was 0.31 ± 0.01 μg/mg. The PQ group showed significantly higher MDA levels and NOX, IL-1β and TNF-α mRNA expression than the control group. Significant pathological changes, including alveolar edema, diffuse alveolar collapse, hemorrhage, leukocyte infiltration, alveolar septal thickening and vascular congestion, were observed in the PQ group compared with the control group. However, the aqueous TL leaf extract significantly attenuated the PQ-induced increases in MDA levels and NOX, IL-1β and TNF-α expressions. Moreover, the aqueous TL leaf extract ameliorated PQ-induced lung pathology. Conclusion This study indicates that aqueous TL leaf extract can ameliorate PQ-induced lung pathology by modulating oxidative stress through inhibition of NOX and by regulating inflammation through inhibition of IL-1β and TNF-α expressions. We suggest that aqueous TL leaf extract can be used as an antidote for PQ-induced lung injury. Supplementary Information The online version contains supplementary material available at 10.1186/s12906-022-03567-4.
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Affiliation(s)
- Sarawoot Palipoch
- School of Medicine, Walailak University, 222 Thaiburi, Thasala District, Nakhon Si Thammarat, 80161, Thailand.
| | - Chuchard Punsawad
- School of Medicine, Walailak University, 222 Thaiburi, Thasala District, Nakhon Si Thammarat, 80161, Thailand
| | - Phanit Koomhin
- School of Medicine, Walailak University, 222 Thaiburi, Thasala District, Nakhon Si Thammarat, 80161, Thailand
| | - Prasit Na-Ek
- School of Medicine, Walailak University, 222 Thaiburi, Thasala District, Nakhon Si Thammarat, 80161, Thailand
| | - Wasinee Poonsawat
- Research Institute for Health Sciences, Walailak University, Nakhon Si Thammarat, 80160, Thailand
| | - Rungruedi Kimseng
- Research Institute for Health Sciences, Walailak University, Nakhon Si Thammarat, 80160, Thailand
| | - Potiga Chotipong
- Center of Scientific and Technological Equipment, Walailak University, Nakhon Si Thammarat, 80160, Thailand
| | - Kingkan Bunluepuech
- School of Medicine, Walailak University, Nakhon Si Thammarat, 80160, Thailand.,Research Excellence Center for Innovation and Health Product, Walailak University, Nakhon Si Thammarat, 80160, Thailand
| | - Gorawit Yusakul
- School of Pharmacy, Walailak University, Nakhon Si Thammarat, 80160, Thailand
| | - Prasit Suwannalert
- Department of Pathobiology, Faculty of Science, Mahidol University, Bangkok, 10400, Thailand
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Mehdi SF, Pusapati S, Khenhrani RR, Farooqi MS, Sarwar S, Alnasarat A, Mathur N, Metz CN, LeRoith D, Tracey KJ, Yang H, Brownstein MJ, Roth J. Oxytocin and Related Peptide Hormones: Candidate Anti-Inflammatory Therapy in Early Stages of Sepsis. Front Immunol 2022; 13:864007. [PMID: 35572539 PMCID: PMC9102389 DOI: 10.3389/fimmu.2022.864007] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Accepted: 03/28/2022] [Indexed: 12/27/2022] Open
Abstract
Sepsis is a potentially life-threatening systemic inflammatory syndrome characterized by dysregulated host immunological responses to infection. Uncontrolled immune cell activation and exponential elevation in circulating cytokines can lead to sepsis, septic shock, multiple organ dysfunction syndrome, and death. Sepsis is associated with high re-hospitalization and recovery may be incomplete, with long term sequelae including post-sepsis syndrome. Consequently, sepsis continues to be a leading cause of morbidity and mortality across the world. In our recent review of human chorionic gonadotropin (hCG), we noted that its major properties including promotion of fertility, parturition, and lactation were described over a century ago. By contrast, the anti-inflammatory properties of this hormone have been recognized only more recently. Vasopressin, a hormone best known for its anti-diuretic effect, also has anti-inflammatory actions. Surprisingly, vasopressin's close cousin, oxytocin, has broader and more potent anti-inflammatory effects than vasopressin and a larger number of pre-clinical studies supporting its potential role in limiting sepsis-associated organ damage. This review explores possible links between oxytocin and related octapeptide hormones and sepsis-related modulation of pro-inflammatory and anti-inflammatory activities.
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Affiliation(s)
- Syed Faizan Mehdi
- The Feinstein Institutes for Medical Research/Northwell Health, Manhasset, NY, United States
| | - Suma Pusapati
- The Feinstein Institutes for Medical Research/Northwell Health, Manhasset, NY, United States
| | - Raja Ram Khenhrani
- The Feinstein Institutes for Medical Research/Northwell Health, Manhasset, NY, United States
| | - Muhammad Saad Farooqi
- The Feinstein Institutes for Medical Research/Northwell Health, Manhasset, NY, United States
| | - Sobia Sarwar
- The Feinstein Institutes for Medical Research/Northwell Health, Manhasset, NY, United States
| | - Ahmad Alnasarat
- The Feinstein Institutes for Medical Research/Northwell Health, Manhasset, NY, United States
| | - Nimisha Mathur
- The Feinstein Institutes for Medical Research/Northwell Health, Manhasset, NY, United States
| | - Christine Noel Metz
- The Feinstein Institutes for Medical Research/Northwell Health, Manhasset, NY, United States
| | - Derek LeRoith
- Division of Endocrinology, Diabetes & Bone Disease, Icahn School of Medicine at Mt. Sinai, New York, NY, United States
| | - Kevin J. Tracey
- The Feinstein Institutes for Medical Research/Northwell Health, Manhasset, NY, United States
| | - Huan Yang
- The Feinstein Institutes for Medical Research/Northwell Health, Manhasset, NY, United States
| | | | - Jesse Roth
- The Feinstein Institutes for Medical Research/Northwell Health, Manhasset, NY, United States
- *Correspondence: Jesse Roth,
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10
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Aladaileh SH, Al-Swailmi FK, Abukhalil MH, Ahmeda AF, Mahmoud AM. Punicalagin prevents cisplatin-induced nephrotoxicity by attenuating oxidative stress, inflammatory response, and apoptosis in rats. Life Sci 2021; 286:120071. [PMID: 34688692 DOI: 10.1016/j.lfs.2021.120071] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2021] [Revised: 10/09/2021] [Accepted: 10/18/2021] [Indexed: 12/21/2022]
Abstract
Nephrotoxicity is a major complication that limits the therapeutic application of cisplatin (CIS). Oxidative stress and inflammation are implicated in CIS-induced acute kidney injury (AKI) and apoptotic cell death. Punicalagin (PUN), a polyphenol in pomegranate, possesses promising anti-inflammatory and antioxidant activities, and its beneficial effect against CIS-induced AKI has not been fully elucidated. This investigation evaluated the protective effect of PUN against CIS-induced renal oxidative stress, inflammation and cell death. Rats received PUN (25 and 50 mg/kg) for 10 days and a single injection of CIS at day 7. The results showed increased serum urea and creatinine and several histopathological alterations in the kidney of CIS-intoxicated rats. Renal malondialdehyde (MDA) and nitric oxide (NO) were increased, and reduced glutathione, superoxide dismutase and catalase were declined in rats treated with CIS. PUN effectively ameliorated kidney function and attenuated tissue injury induced by CIS, decreased MDA and NO, and enhanced antioxidant defenses. Additionally, PUN downregulated NF-κB p65, iNOS, TNF-α, IL-6 and IL-1β in the kidney of rats that received CIS. Bax and caspase-3 were increased, and Bcl-2 was decreased in the kidney of CIS-intoxicated rats, an effect that was reversed by PUN. PUN upregulated Nrf2 expression in the kidney of CIS-intoxicated rats. In conclusion, PUN prevents CIS-induced AKI in rats by attenuating oxidative stress, inflammatory response and apoptosis, and upregulating Nrf2 and antioxidants.
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Affiliation(s)
- Saleem H Aladaileh
- Department of Pharmacy Practice, College of Pharmacy, University of Hafr Al-Batin, Saudi Arabia; Department of Medical Analysis, Princess Aisha Bint Al-Hussein College of Nursing and Health Sciences, Al-Hussein Bin Talal University, Jordan
| | - Farhan K Al-Swailmi
- Department of Pharmacy Practice, College of Pharmacy, University of Hafr Al-Batin, Saudi Arabia
| | - Mohammad H Abukhalil
- Department of Medical Analysis, Princess Aisha Bint Al-Hussein College of Nursing and Health Sciences, Al-Hussein Bin Talal University, Jordan; Department of Biology, College of Science, Al-Hussein Bin Talal University, Jordan
| | - Ahmad F Ahmeda
- Department of Basic Medical Sciences, College of Medicine, Ajman University, Ajman, United Arab Emirates; Center of Medical and Bio-allied Health Sciences Research, Ajman University, Ajman, United Arab Emirates
| | - Ayman M Mahmoud
- Physiology Division, Zoology Department, Faculty of Science, Beni-Suef University, Egypt.
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11
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Protein expression profiling of rat uteruses with primary dysmenorrhea syndrome. Arch Gynecol Obstet 2021; 305:139-147. [DOI: 10.1007/s00404-021-06233-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Accepted: 09/02/2021] [Indexed: 10/20/2022]
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12
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Hsing CH, Tsai CC, Chen CL, Lin YH, Tseng PC, Satria RD, Lin CF. Pharmacologically Inhibiting Glycogen Synthase Kinase-3β Ameliorates Renal Inflammation and Nephrotoxicity in an Animal Model of Cisplatin-Induced Acute Kidney Injury. Biomedicines 2021; 9:887. [PMID: 34440091 PMCID: PMC8389561 DOI: 10.3390/biomedicines9080887] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Revised: 07/20/2021] [Accepted: 07/21/2021] [Indexed: 01/01/2023] Open
Abstract
The adverse effect of cisplatin administration causes acute kidney injury (AKI) following renal inflammation and nephrotoxicity, characterized by proximal tubular cell apoptosis and necrosis. Pro-apoptotic and pro-inflammatory roles of glycogen synthase kinase (GSK)-3β have been reported. This study investigated the therapeutic blockade of GSK-3β in cisplatin-induced AKI. A renal cisplatin nephrotoxicity model showed activation of GSK-3β in vivo, particularly in proximal tubular epithelial cells. Pharmacologically inhibiting GSK-3β abolished cisplatin nephrotoxicity, including proximal tubular injury, cell cytotoxicity, and biochemical dysfunction. Additionally, GSK-3β inhibitor treatment ameliorated renal inflammation by reducing immune cell infiltration, cell adhesion molecule expression, and pro-inflammatory cytokine/chemokine production. Cisplatin treatment caused GSK-3β activation in vitro in the human renal proximal tubular epithelial cell line HK-2, whereas either pharmacological administration of GSK-3β inhibitors or genetic transduction of GSK-3β short-hairpin RNA impeded cisplatin-induced cytotoxicity. These results indicate that cisplatin activates GSK-3β followed by GSK-3β-mediated renal inflammation and nephrotoxicity, contributing to AKI.
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Affiliation(s)
- Chung-Hsi Hsing
- Department of Anesthesiology, Chi-Mei Medical Center, Tainan 710, Taiwan;
- Department of Medical Research, Chi-Mei Medical Center, Tainan 710, Taiwan
- Department of Anesthesiology, College of Medicine, Taipei Medical University, Taipei 110, Taiwan
| | - Cheng-Chieh Tsai
- Department of Nursing, Chung Hwa University of Medical Technology, Tainan 703, Taiwan;
- Department of Long Term Care Management, Chung Hwa University of Medical Technology, Tainan 703, Taiwan
| | - Chia-Ling Chen
- School of Respiratory Therapy, College of Medicine, Taipei Medical University, Taipei 110, Taiwan;
| | - Yu-Hui Lin
- Graduate Institute of Clinical Medicine, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan;
| | - Po-Chun Tseng
- Department of Microbiology and Immunology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan; (P.-C.T.); (R.D.S.)
- Core Laboratory of Immune Monitoring, Office of Research & Development, Taipei Medical University, Taipei 110, Taiwan
| | - Rahmat Dani Satria
- Department of Microbiology and Immunology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan; (P.-C.T.); (R.D.S.)
- International Ph.D. Program in Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan
- Department of Clinical Pathology and Laboratory Medicine, Faculty of Medicine, Public Health and Nursing, Universitas Gadjah Mada, Yogyakarta 55281, Indonesia
- Clinical Laboratory Installation, Dr. Sardjito Central General Hospital, Yogyakarta 55281, Indonesia
| | - Chiou-Feng Lin
- Department of Microbiology and Immunology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan; (P.-C.T.); (R.D.S.)
- Core Laboratory of Immune Monitoring, Office of Research & Development, Taipei Medical University, Taipei 110, Taiwan
- International Ph.D. Program in Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan
- Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei 110, Taiwan
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13
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The Therapeutic Effect of Ge-Gen Decoction on a Rat Model of Primary Dysmenorrhea: Label-Free Quantitative Proteomics and Bioinformatic Analyses. BIOMED RESEARCH INTERNATIONAL 2021; 2020:5840967. [PMID: 33344642 PMCID: PMC7725571 DOI: 10.1155/2020/5840967] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Revised: 09/16/2020] [Accepted: 11/24/2020] [Indexed: 11/17/2022]
Abstract
Ge-Gen decoction (GGD) is widely used for the treatment of primary dysmenorrhea (PD) in China. However, the mechanisms that underlie this effect are unclear. We investigated the protective mechanism of GGD in a rat model of PD using label-free quantitative proteomics. The model was established by the administration of estradiol benzoate and oxytocin. Thirty rats were divided into three groups (ten rats/group): a control group (normal rats), a model group (PD rats), and a treatment group (PD rats treated with GGD). The serum levels of prostaglandin E2 (PGE2) and prostaglandin F2α (PGF2α) were measured by ELISA. Nanohigh-performance liquid chromatography-tandem mass spectrometry (nano-HPLC-MS/MS) was used to identify differentially expressed proteins (DEPs), and bioinformatics was used to investigate the protein function. Proteomic data were validated by western blot analysis. Oxytocin-induced writhing responses and abnormal serum levels of PGE2 and PGF2α were reversed following the administration of GGD. A total of 379 DEPs were identified; 276 were identified between the control group and the model group, 144 were identified between the model group and the treatment group, and 41 were identified as DEPs that were common to all groups. Bioinformatics revealed that the DEPs between the control group and the model group were mainly associated with cellular component biogenesis and binding processes. The DEPs between the model group and the treatment group were mainly involved in the protein binding and metabolic process. The expression levels of HSP90AB1 and the phosphorylation levels of ERK, JNK, and P-p38 in the uteri of rats in the three groups were consistent with the proteomic findings; MAP kinases (ERK, JNK, and p38) are known to be involved in the production of inflammatory cytokines and oxytocin signaling while HSP90AB1 is known to be associated with estrogen signaling. Collectively, these data indicate that GGD may exert its protective function on PD by regulating the inflammatory response and signaling pathways associated with oxytocin and estrogen.
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14
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Proskurnina EV, Sokolova SV, Portnova GV. Touch-induced emotional comfort results in an increase in the salivary antioxidant potential: A correlational study. Psychophysiology 2021; 58:e13854. [PMID: 34061347 DOI: 10.1111/psyp.13854] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Revised: 05/05/2021] [Accepted: 05/05/2021] [Indexed: 12/19/2022]
Abstract
A pleasant touch reduces psychoemotional stress via the oxytocin mechanism due to its anti-inflammatory and antioxidant effects. Our research is aimed to reveal the correlations between the subjectively perceived pleasantness of touch, the antioxidant potential of saliva, and salivary oxytocin. A total of 56 healthy volunteers aged 18-38 years participated in the study. The control group consisted of 24 volunteers. The participants were subjected to tactile stimulation using a specially designed protocol. They ranked the touch pleasantness on a scale from 1 to 10. Heart rate variability and low-frequency/high-frequency ratios from the power spectral density of ECG were determined to assess psychoemotional relaxation. Salivary oxytocin and antioxidant capacity were quantified before and after the touch test. We found a significant increase in salivary antioxidant potential and oxytocin after pleasant tactile stimulation for the participants compared to the control group. The difference in antioxidant capacity values before and after the test positively correlated with mean pleasantness in the touch test (r = 0.57) and the difference in heart rate variability (r = 0.67); it negatively correlated with the difference in low-frequency/high-frequency ECG band ratio (r = -0.59). Oxytocin ratio positively correlated with the difference in antioxidant capacity values (r = 0.47). As a result of tactile stimulation, a significant increase in the antioxidant capacity of saliva and salivary oxytocin was found in the test group compared to the control group. These findings support further studies of the effects of pleasant touch on hormonal and oxidative metabolism.
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Affiliation(s)
- Elena V Proskurnina
- Laboratory of Molecular Biology, Research Centre for Medical Genetics, Moscow, Russia
| | - Svetlana V Sokolova
- Medical Research and Educational Center, Lomonosov Moscow State University, Moscow, Russia
| | - Galina V Portnova
- Laboratory of the Human Higher Nervous Activity, Institute of Higher Nervous Activity and Neurophysiology of Russian Academy of Sciences, Moscow, Russia
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15
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Buemann B, Marazziti D, Uvnäs-Moberg K. Can intravenous oxytocin infusion counteract hyperinflammation in COVID-19 infected patients? World J Biol Psychiatry 2021; 22:387-398. [PMID: 32914674 DOI: 10.1080/15622975.2020.1814408] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
OBJECTIVES Based on its well-documented anti-inflammatory and restorative properties we propose trials with the natural hormone oxytocin for treatment of hospitalised Covid-19 patients. METHODS We searched for, retrieved, and commented on specific literature regarding multiple functions of oxytocin with a special focus on its modulation of inflammatory, immune, and restorative functions. RESULTS Available data gathered in animals and humans support the anti-inflammatory properties of oxytocin. The multiple anti-inflammatory effects of oxytocin have been demonstrated in vitro and in vivo in various animal models and also in humans in response to intravenous infusion of oxytocin. Furthermore, oxytocin has been documented to activate several types of protective and restorative mechanisms and to exert positive effects on the immune system. CONCLUSIONS In addition, to being anti-inflammatory, it may be hypothesised, that oxytocin may be less suppressive on adaptive immune systems, as compared with glucocorticoids. Finally, by its restorative effects coupled with its anti-stress and healing properties, oxytocin may shorten the recovery period of the Covid-19 patients.
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Affiliation(s)
| | - Donatella Marazziti
- Department of Experimental and Clinical Medicine, Section of Psychiatry, University of Pisa, Pisa, Italy
| | - Kerstin Uvnäs-Moberg
- Department of Animal Environment and Health, Swedish University of Agricultural Sciences, Skara, Sweden
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16
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Almansoub HAMM, Tang H, Wu Y, Wang DQ, Mahaman YAR, Salissou MTM, Lu Y, Hu F, Zhou LT, Almansob YAM, Liu D. Oxytocin Alleviates MPTP-Induced Neurotoxicity in Mice by Targeting MicroRNA-26a/Death-Associated Protein Kinase 1 Pathway. J Alzheimers Dis 2021; 74:883-901. [PMID: 32083584 DOI: 10.3233/jad-191091] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Neurotoxicity is one of the major pathological changes in multiple neurological disorders, including Alzheimer's disease (AD) and Parkinson's disease (PD), the second popular neurodegenerative disease in aged people. It is known that the AD and PD share the similar neuropathological hallmarks, such as the oxidative stress, loss of specific neurons, and aggregation of specific proteins. However, there are no effective therapeutic drugs for both AD and PD yet. Oxytocin (OXT) is a small peptide with 9 amino acids that is neuroprotective to many neurological disorders. Whether OXT administration confers neuroprotection to 1-methyl-4-phenyl-1, 2, 3, 6- tetrahydropyridine (MPTP)-induced neurotoxicity in mice are still not known. In this study, we first found that the OXT levels are decreased in MPTP mice. Supplementation with OXT effectively rescues the locomotor disabilities and anxiety-like behaviors in MPTP mice. OXT also alleviates the hyperphosphorylation of α-synuclein at S129 site and the loss of dopaminergic neurons in the substantia nigra pars compacta, as well as the oxidative stress in the MPTP mice, and alleviates both oxidative stress and cell cytotoxicity in vitro. Furthermore, we found that OXT could inhibit the miR-26a/DAPK1 signal pathway in MPTP mice. In summary, our study demonstrates protective effects of OXT in MPTP mice and that miR-26a/DAPK1 signaling pathway may play an important role in mediating the protection of OXT.
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Affiliation(s)
- Hasan A M M Almansoub
- Department of Pathophysiology, Key lab of a neurological disorder of Education Ministry, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China.,The Institute of Brain Research, Collaborative Innovation Center for Brain Science, Huazhong University of Science and Technology, Wuhan, P.R. China.,Department of Biology, Faculty of Science - Marib, Sana'a University, Marib, Yemen
| | - Hui Tang
- Department of Pathophysiology, Key lab of a neurological disorder of Education Ministry, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China.,The Institute of Brain Research, Collaborative Innovation Center for Brain Science, Huazhong University of Science and Technology, Wuhan, P.R. China
| | - Ying Wu
- Department of Pathophysiology, Key lab of a neurological disorder of Education Ministry, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China.,The Institute of Brain Research, Collaborative Innovation Center for Brain Science, Huazhong University of Science and Technology, Wuhan, P.R. China
| | - Ding-Qi Wang
- Department of Pathophysiology, Key lab of a neurological disorder of Education Ministry, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China.,The Institute of Brain Research, Collaborative Innovation Center for Brain Science, Huazhong University of Science and Technology, Wuhan, P.R. China
| | - Yacoubou Abdoul Razak Mahaman
- Department of Pathophysiology, Key lab of a neurological disorder of Education Ministry, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China.,The Institute of Brain Research, Collaborative Innovation Center for Brain Science, Huazhong University of Science and Technology, Wuhan, P.R. China.,Department of Cognitive Impairment Ward of Neurology, The Third Affiliated Hospital of Shenzhen University, Shenzhen, Guangdong Province, China
| | - Maibouge Tanko Mahamane Salissou
- Department of Pathophysiology, Key lab of a neurological disorder of Education Ministry, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China.,The Institute of Brain Research, Collaborative Innovation Center for Brain Science, Huazhong University of Science and Technology, Wuhan, P.R. China
| | - Youming Lu
- The Institute of Brain Research, Collaborative Innovation Center for Brain Science, Huazhong University of Science and Technology, Wuhan, P.R. China
| | - Fan Hu
- Department of Pathophysiology, Key lab of a neurological disorder of Education Ministry, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China.,The Institute of Brain Research, Collaborative Innovation Center for Brain Science, Huazhong University of Science and Technology, Wuhan, P.R. China
| | - Lan-Ting Zhou
- Department of Pathophysiology, Key lab of a neurological disorder of Education Ministry, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China.,The Institute of Brain Research, Collaborative Innovation Center for Brain Science, Huazhong University of Science and Technology, Wuhan, P.R. China
| | - Yusra A M Almansob
- Department of Stomatology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China
| | - Dan Liu
- Department of Pathophysiology, Key lab of a neurological disorder of Education Ministry, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China.,Department of Genetics, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China
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17
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Protective effect of gallic acid and gallic acid-loaded Eudragit-RS 100 nanoparticles on cisplatin-induced mitochondrial dysfunction and inflammation in rat kidney. Biochim Biophys Acta Mol Basis Dis 2020; 1866:165911. [DOI: 10.1016/j.bbadis.2020.165911] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Revised: 07/02/2020] [Accepted: 08/03/2020] [Indexed: 01/17/2023]
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18
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Oyetayo FL, Akomolafe SF, Osesanmi TJ. Effect of dietary inclusion of pumpkin (Cucurbita pepo L) seed on nephrotoxicity occasioned by cisplatin in experimental rats. J Food Biochem 2020; 44:e13439. [PMID: 32808341 DOI: 10.1111/jfbc.13439] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Revised: 07/13/2020] [Accepted: 07/28/2020] [Indexed: 11/30/2022]
Abstract
The study evaluated the effect of dietary inclusion of pumpkin (Cucurbita pepo L) seed (raw and roasted) on nephrotoxicity caused by cisplatin in rats. Rats were divided into control group, cisplatin-induced nephrotoxic untreated group, nephrotoxic-treated groups with Methimazole, dietary regimen containing raw pumpkin seed (5% and 10%) and roasted pumpkin seed (5% and 10%) for 14 days. Results acquired uncovered that cisplatin intoxication significantly increased (p ≤ .05) the levels of renal biomarkers, arginase activity, 8-hydroxy-21-deoxy guanosine (8-OHdG), malondialdehyde (MDA), and reactive oxygen species (ROS) levels as well as significant decrease in functional sulfhydryl groups, nitric oxide levels, and antioxidant enzyme activities in rats' kidney when compared to the control group. These adverse changes, due to cisplatin inebriation in rodents, were in any case, forestalled by pre-treatment with pumpkin seed inclusive diet. This holds promise for the use of pumpkin seed as a food supplement in the management of nephrotoxic-related disorders. PRACTICAL APPLICATIONS: These results suggest that roasted pumpkin seed appears to be more nephroprotective than the raw pumpkin seed through regulations of arginase activity, enhancement in the antioxidant system, suppression of renal markers and lipid peroxidation. This holds p-omise for the use of roasted pumpkin seed as a food supplement in the management nephrotoxic-related disorders.
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Affiliation(s)
- Folake L Oyetayo
- Department of Biochemistry, Faculty of Science, Ekiti State University, Ado Ekiti, Nigeria
| | - Seun F Akomolafe
- Department of Biochemistry, Faculty of Science, Ekiti State University, Ado Ekiti, Nigeria
| | - Tope J Osesanmi
- Department of Biochemistry, Faculty of Science, Ekiti State University, Ado Ekiti, Nigeria
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19
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McKay EC, Counts SE. Oxytocin Receptor Signaling in Vascular Function and Stroke. Front Neurosci 2020; 14:574499. [PMID: 33071746 PMCID: PMC7544744 DOI: 10.3389/fnins.2020.574499] [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: 06/22/2020] [Accepted: 08/31/2020] [Indexed: 12/13/2022] Open
Abstract
The oxytocin receptor (OXTR) is a G protein-coupled receptor with a diverse repertoire of intracellular signaling pathways, which are activated in response to binding oxytocin (OXT) and a similar nonapeptide, vasopressin. This review summarizes the cell and molecular biology of the OXTR and its downstream signaling cascades, particularly focusing on the vasoactive functions of OXTR signaling in humans and animal models, as well as the clinical applications of OXTR targeting cerebrovascular accidents.
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Affiliation(s)
- Erin C McKay
- Department of Translational Neuroscience, Michigan State University, Grand Rapids, MI, United States.,Neuroscience Program, Michigan State University, East Lansing, MI, United States
| | - Scott E Counts
- Department of Translational Neuroscience, Michigan State University, Grand Rapids, MI, United States.,Neuroscience Program, Michigan State University, East Lansing, MI, United States.,Department of Family Medicine, Michigan State University, Grand Rapids, MI, United States.,Hauenstein Neurosciences Center, Mercy Health Saint Mary's Hospital, Grand Rapids, MI, United States.,Michigan Alzheimer's Disease Research Center, Ann Arbor, MI, United States
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20
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Younis NN, Elsherbiny NM, Shaheen MA, Elseweidy MM. Modulation of NADPH oxidase and Nrf2/HO-1 pathway by vanillin in cisplatin-induced nephrotoxicity in rats. J Pharm Pharmacol 2020; 72:1546-1555. [PMID: 32746497 DOI: 10.1111/jphp.13340] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Accepted: 06/28/2020] [Indexed: 02/05/2023]
Abstract
OBJECTIVES To investigate the protective effect of vanillin in cisplatin (CP)-induced nephrotoxicity in rats and elucidate the role of nrf-2 and its downstream antioxidant molecules. METHODS Rats received vanillin (100 mg/kg orally) for 10 constitutive days and CP (7.5 mg/kg, once, ip) on day 6 of vanillin administration. KEY FINDINGS Cisplatin suppressed body weight gain, increased serum urea and creatinine and renal malondialdehyde and nitric oxide while decreased renal total antioxidant capacity. Up-regulation of NADPH oxidase-4 (NOX-4) was marked in renal tissue of CP-treated rats along with down-regulation of the antioxidant genes (nuclear factor erythroid 2-related factor2 (NRF2) and haem oxygenase-1(HO-1)). Increased tumour necrosis factor-α and decreased interleukin-10 with increased myeloperoxidase activity were apparent in renal tissue of CP-treated rats along with marked tubular injury, neutrophil infiltration and increased apoptosis (caspase-3) and some degree of interstitial fibrosis. Vanillin prophylactic administration prevented the deterioration of kidney function, oxidative and nitrosative stress. It also suppressed NOX-4 and up-regulated NRF2 and HO-1 expression in renal tissue. Inflammation, apoptosis and tubular injury were also inhibited by vanillin. CONCLUSIONS The antioxidant mechanism by which vanillin protected against CP-induced nephrotoxicity involved the inhibition of NOX-4 along with the stimulation of Nrf2/HO-1 signalling pathway. These in turn inhibited inflammation and apoptosis.
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Affiliation(s)
- Nahla N Younis
- Biochemistry Department, Faculty of Pharmacy, Zagazig University, Zagazig, Egypt
| | - Nehal M Elsherbiny
- Biochemistry Department, Faculty of Pharmacy, Mansoura University, Mansoura, Egypt.,Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Tabuk, Tabuk, Saudi Arabia
| | - Mohamed A Shaheen
- Histology and Cell Biology department, Faculty of Human Medicine, Zagazig University, Zagazig, Egypt
| | - Mohamed M Elseweidy
- Biochemistry Department, Faculty of Pharmacy, Zagazig University, Zagazig, Egypt
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21
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Hashem KS, Elkelawy AMMH, Abd-Allah S, Helmy NA. Involvement of Mfn2, Bcl2/Bax signaling and mitochondrial viability in the potential protective effect of Royal jelly against mitochondria-mediated ovarian apoptosis by cisplatin in rats. IRANIAN JOURNAL OF BASIC MEDICAL SCIENCES 2020; 23:515-526. [PMID: 32489567 PMCID: PMC7239429 DOI: 10.22038/ijbms.2020.40401.9563] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Accepted: 11/09/2019] [Indexed: 01/24/2023]
Abstract
OBJECTIVES The current study aimed to assess cisplatin-mediated ovarian apoptosis in a rat model by Royal jelly (RJ). MATERIALS AND METHODS Thirty female adult albino rats (180-200 g) were divided into three groups (n=10): saline (0.9% NaCl, IP) was given to the control group, the cisplatin group: received (5 mg/kg/once a week IP) for 5 successive weeks, the RJ+Cis. group: received RJ (100 mg/kg/ day PO daily), and Cisplatin (5 mg/kg/once per week IP) for 5 successive weeks. At the end of the experiment, rats were sacrificed and their ovaries were isolated and used for biochemical analysis, molecular investigations and morphometric assessment as well as histological study. Moreover, blood samples were collected for determination of follicle-stimulating hormone (FSH), luteinizing hormone (LH), Estradiol, progesterone and anti-mullerian hormone (AMH). RESULTS The current study clarified that RJ given to rats prior to cisplatin significantly increased the ovarian and uterine weights, in addition to follicular count at P˂0.05 compared to rats injected only with cisplatin. Moreover, it restored normal ovarian histological structure with a concurrent reduction in FSH, and LH levels, and increased AMH and ovarian hormone concentrations at P˂0.05 compared to cisplatin group. Also, RJ decreased the ovarian antioxidant/oxidative imbalance harmonized with significant suppression of inducible nitric oxide synthase and increase of quinone oxidoreductase 1 mRNA expression at P˂0.05 compared to cisplatin group. CONCLUSION We concluded that RJ could alleviate mitochondrial-induced ovarian apoptosis caused by cisplatin via increasing anti-apoptotic Bcl2, and diminishing pro-apoptotic Bax with a concomitant increase of Mfn2 mRNA and protein expressions.
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Affiliation(s)
- Khalid S. Hashem
- Department of Biochemistry, Faculty of Veterinary Medicine, Beni-Suef University, Beni-Suef, Egypt
| | | | - Saber Abd-Allah
- Department of Theriogenology, Faculty of Veterinary Medicine, Beni-Suef University, Beni-Suef, Egypt
| | - Nermeen A. Helmy
- Department of Physiology, Faculty of Veterinary Medicine, Beni-Suef University, Beni-Suef, Egypt
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22
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Abdel-Razek EAN, Abo-Youssef AM, Azouz AA. Benzbromarone mitigates cisplatin nephrotoxicity involving enhanced peroxisome proliferator-activated receptor-alpha (PPAR-α) expression. Life Sci 2020; 243:117272. [PMID: 31926251 DOI: 10.1016/j.lfs.2020.117272] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Revised: 12/30/2019] [Accepted: 01/06/2020] [Indexed: 02/07/2023]
Abstract
AIM Despite the great efficacy reported for cisplatin as a widely used chemotherapeutic agent, its clinical use is limited by the challenge of facing its serious side effect; nephrotoxicity. In this study, the effect of the benzbromarone on peroxisome proliferator-activated receptor-alpha (PPAR-α) was investigated against cisplatin nephrotoxicity. MAIN METHODS Rats were administered benzbromarone (10 mg/kg/day; p.o.) for 14 days, and cisplatin (6.5 mg/kg; i.p.) as a single dose on the 10th day. Blood and kidney tissue samples were collected for determination of kidney function, biochemical and molecular markers, as well as histopathological investigation. KEY FINDINGS Benzbromarone improved kidney function, that was evidenced by reduced serum creatinine and blood urea nitrogen to nearly the half, compared to the group administered cisplatin alone. The protein expression of PPAR-α was enhanced with benzbromarone treatment, along with a considerable suppression of oxidative stress as benzbromarone reduced mRNA expression of NADPH oxidase, while increased the anti-oxidant HO-1 protein expression associated with enhancing Nrf2. Besides, it displayed a marked anti-inflammatory effect involved suppression of p38 MAPK/NF-κB p65 signaling pathway and its downstream targets. Moreover, benzbromarone retarded apoptosis associated with reducing the pro-apoptotic (Bax) and enhancing the anti-apoptotic (Bcl-2) protein expressions. The protective effects of benzbromarone were also confirmed by histopathological results. SIGNIFICANCE Our data confirm the relation between PPAR-α, and the deleterious effects induced by cisplatin. It can also be suggested that enhancing PPAR-α expression by benzbromarone is a promising therapeutic approach that overcomes cisplatin nephrotoxicity, involving regulation of different signaling pathways: Nrf2/HO-1, p38 MAPK/NF-κB p65, and Bax/Bcl-2.
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Affiliation(s)
| | - Amira M Abo-Youssef
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Beni-Suef University, Beni-Suef 62514, Egypt.
| | - Amany A Azouz
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Beni-Suef University, Beni-Suef 62514, Egypt.
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23
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The effect of intratympanic oxytocin treatment on rats exposed to acoustic trauma. The Journal of Laryngology & Otology 2019; 133:466-476. [PMID: 31099325 DOI: 10.1017/s0022215119001014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
OBJECTIVE To investigate whether oxytocin can prevent ototoxicity related to acoustic trauma. METHODS Twenty-eight rats were divided into four groups: noise (group 1), control (group 2), noise plus oxytocin (group 3), and oxytocin (group 4). Intratympanic oxytocin was administered on days 1, 2, 4, 6, 8 and 10 in groups 3 and 4. Groups 1 and 3 were exposed to acoustic trauma. Distortion product otoacoustic emission and auditory brainstem response testing were performed in all groups. RESULTS In group 1, auditory brainstem response thresholds increased significantly after acoustic trauma. In group 3, auditory brainstem response thresholds increased significantly on day 1 after acoustic trauma, but there were no significant differences between thresholds at baseline and on the 7th and 21st days. In group 1, significant differences were observed between distortion product otoacoustic emission signal-to-noise ratios measured before and on days 1, 7 and 21 after acoustic trauma. In group 3, no significant differences were observed between the distortion product otoacoustic emission signal-to-noise ratios measured before and on days 7 and 21 after acoustic trauma. CONCLUSION Oxytocin had a therapeutic effect on rats exposed to acoustic trauma in this experiment.
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Değirmenci C, Afrashi F, Erbaş O, Aktuğ H, Taşkıran D. The Preventive Effect of Oxytocin on Retinopathy in Streptozotocin-Induced Diabetic Rats. Turk J Ophthalmol 2019; 49:68-72. [PMID: 31055890 PMCID: PMC6517859 DOI: 10.4274/tjo.galenos.2018.47897] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
Abstract
Objectives: The aim of this study was to investigate the impact of intravitreal and intraperitoneal use of oxytocin (OT) on retinopathy in streptozotocin-induced diabetic rats. Materials and Methods: Twenty-four 6-8-week-old adult male and female Sprague Dawley rats were used in the study. Diabetes was induced in the rats with a single injection of intraperitoneal streptozotocin. Diabetes was verified after 48 hours by measuring blood glucose levels of 260 mg/dl (14.4 mmol/L) or higher in diabetic rats. The rats were divided into 4 groups and treated as follows: intravitreal physiological saline group (0.01 mL saline weekly), intravitreal OT group (10 μU/μL OT weekly), intraperitoneal physiological saline group (1 mL daily), and intraperitoneal OT group (100 IU/kg OT daily). Hamilton syringes fitted with 27-gauge needles were used for intraperitoneal injections while 31-gauge needles were used for intravitreal injection. After 4 weeks of treatment the rats were euthanized to evaluate outer nuclear layer (ONL) thickness, vascular endothelial growth factor (VEGF) immunoexpression, and plasma VEGF levels from blood samples obtained by cardiac puncture. Results: Morphometric analysis of retinal cross-sections showed that intravitreal and intraperitoneal OT significantly increased ONL thickness compared to physiological saline-treated groups. Also, OT treatment significantly decreased VEGF protein expression compared with the physiological saline groups. Plasma VEGF level was significantly higher in the physiological saline treatment group compared to the OT treatment group. Conclusion: OT reduces diabetic retinopathy progression, particularly when administered intravitreally. To our knowledge, this is the first attempt to investigate the impact of OT on diabetic retinopathy and may provide a new area for further research.
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Affiliation(s)
- Cumali Değirmenci
- Ege University Faculty of Medicine, Department of Ophthalmology, İzmir, Turkey
| | - Filiz Afrashi
- Ege University Faculty of Medicine, Department of Ophthalmology, İzmir, Turkey
| | - Oytun Erbaş
- İstanbul Bilim University Faculty of Medicine, Department of Physiology, İstanbul, Turkey
| | - Hüseyin Aktuğ
- Ege University Faculty of Medicine, Department of Histology and Embryology, İzmir, Turkey
| | - Dilek Taşkıran
- Ege University Faculty of Medicine, Department of Physiology, İzmir, Turkey
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25
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Protective Smell of Hydrogen Sulfide and Polysulfide in Cisplatin-Induced Nephrotoxicity. Int J Mol Sci 2019; 20:ijms20020313. [PMID: 30646560 PMCID: PMC6359127 DOI: 10.3390/ijms20020313] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2018] [Revised: 01/08/2019] [Accepted: 01/10/2019] [Indexed: 12/29/2022] Open
Abstract
Though historically known as a toxic gas, hydrogen sulfide (H2S) has displayed a new face as the third endogenous gaseous signaling molecule after nitric oxide (NO) and carbon monoxide (CO). Here in this review, we survey the role and therapeutic potential of H2S in cisplatin-induced nephrotoxicity. Specifically, reduction of H2S by cystathionine γ-lyase (CSE) downregulation upon cisplatin treatment may contribute to cisplatin-induced renal cell injury, possibly by augmentation of endogenous reactive oxygen species (ROS) production, while H2S donation may prevent subsequent renal dysfunction by inhibiting NADPH oxidase activation. Intriguingly, H2S slow-releasing compound GYY4137 seems to increase the anticancer activity of cisplatin, at least in several cancer cell lines, and this is probably due to its own anticancer effect. However, the efficacy of H2S donors in tumor-bearing animals remains to be tested in terms of renal protection and cancer inhibition after receiving cisplatin. Furthermore, accumulative evidence regarding usage of polysulfide, a novel H2S derived molecule, in the therapy of cisplatin-induced nephrotoxicity, was also summarized.
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Li S, Zhong M, Yuan Y, Zhang L. Differential roles of p38 MAPK and ERK1/2 in angiopoietin-2-mediated rat pulmonary microvascular endothelial cell apoptosis induced by lipopolysaccharide. Exp Ther Med 2018; 16:4729-4736. [PMID: 30546397 DOI: 10.3892/etm.2018.6810] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2015] [Accepted: 02/07/2017] [Indexed: 11/06/2022] Open
Abstract
Angiopoietin-2 (Ang-2) is a Tie-2 ligand that destabilizes vascular structures, enhances vascular permeability and induces vascular regression and endothelial cell apoptosis. Although there is evidence for the involvement of the Ang/Tie2 axis in acute lung injury (ALI), the underlying mechanisms involved in Ang-2-induced cell apoptosis are not well understood. In this study, whether Ang-2 contributes to microvascular endothelial cell injury and mediates lipopolysaccharide (LPS)-induced endothelial cell apoptosis and its associated signaling pathways was investigated. Exposure of rat pulmonary microvascular endothelial cells (RPMVECs) to LPS, Ang-2 and related inhibitors was performed to measure the expression levels of Ang-2, the activation of mitogen-activated protein kinases (MAPKs), the phosphorylation of extracellular signal-regulated kinase (ERK)1/2, and expression of the apoptosis-related proteins Bax and Bcl-2 using western blotting, reverse transcription-quantitative polymerase chain reaction, flow cytometry and fluorescence microscopy. The expression of Ang-2 in the RPMVECs was increased by LPS independent of time. The phosphorylation of p38 MAPK and ERK1/2 was significantly upregulated and the activation of apoptosis-related proteins Bax and Bcl was mediated by Ang-2. In addition, inhibition of the p38 pathway by SB203580 attenuated the Ang-2-mediated cell apoptosis, but inhibition of the ERK1/2 pathway by PD98059 exerted an anti-apoptotic effect against Ang-2. In conclusion, LPS-induced apoptosis is partly mediated via stimulation of p38 and ERK1/2 signaling pathways, where Ang-2 acts an inflammation-related factor to participate in the course of cell apoptosis in RPMVECs.
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Affiliation(s)
- Shi Li
- ICU, The Third Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230061, P.R. China
| | - Mingmei Zhong
- ICU, The Third Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230061, P.R. China
| | - Yuan Yuan
- The Central Laboratory of Binhu Hospital, The Third Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230061, P.R. China
| | - Lin Zhang
- ICU, The Third Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230061, P.R. China
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27
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Oxytocin improves animal behaviors and ameliorates oxidative stress and inflammation in autistic mice. Biomed Pharmacother 2018; 107:262-269. [DOI: 10.1016/j.biopha.2018.07.148] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Revised: 07/20/2018] [Accepted: 07/30/2018] [Indexed: 12/28/2022] Open
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Zhang Y, Wang Q, Wang YD, Sun B, Leng XW, Li Q, Ren LQ. Effect of rutin on cisplatin-induced damage in human mesangial cells via apoptotic pathway. Hum Exp Toxicol 2018; 38:118-128. [DOI: 10.1177/0960327118785233] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Cisplatin (CP) is one of the most effective and widely used compounds in the treatment of disease, including cancer, but is known to induce toxicity in patients. Rutin (RUT) is a flavonoid glycoside from Sophora japonica L. that has been shown to possess antioxidative, anti-inflammatory, and antiviral properties. RUT is also known to attenuate cardiotoxicity, isoproterenol-induced cardiac fibrosis, and ischemia/reperfusion-associated hemodynamic alteration, and prevents high glucose-induced renal glomerular endothelial hyperpermeability. In this study, we investigated the effect of RUT on CP-induced nephrotoxicity. CP was used to induce toxicity in human mesangial cells (HMCs), HMCs were pretreated with different concentrations of RUT before being exposed to 10 μg/mL of CP. A positive group was pretreated with antioxidant agent N-acetylcysteine prior to CP administration. At doses between 12.5 and 25 μM, RUT prevented CP-induced reduction in cell viability. Treatment with RUT suppressed intracellular reactive oxygen species and malonic dialdehyde levels and inhibited cell apoptosis. RUT reversed the CP-induced upregulation of p53, cleaved-caspase-3, and increased pro-caspase-3 and pro-caspase-9 levels. In conclusion, the RUT can relieve CP-induced nephrotoxicity by inhibiting the p53/caspase signaling pathway.
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Affiliation(s)
- Y Zhang
- Department of Experimental Pharmacology and Toxicology, School of Pharmacy, Jilin University, Changchun, Jilin Province, China
| | - Q Wang
- Cancer Center, The First Hospital of Jilin University, Changchun, Jilin Province, China
| | - Y-D Wang
- Department of Oncology, Liaoning Medical University, Jinzhou, Liaoning Province, China
| | - B Sun
- Department of Experimental Pharmacology and Toxicology, School of Pharmacy, Jilin University, Changchun, Jilin Province, China
| | - X-W Leng
- Department of Experimental Pharmacology and Toxicology, School of Pharmacy, Jilin University, Changchun, Jilin Province, China
| | - Q Li
- Department of Pathology, The Third Affiliated Hospital of Liaoning Medical University, Jinzhou, Liaoning Province, China
| | - L-Q Ren
- Department of Experimental Pharmacology and Toxicology, School of Pharmacy, Jilin University, Changchun, Jilin Province, China
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Cao X, Nie X, Xiong S, Cao L, Wu Z, Moore PK, Bian JS. Renal protective effect of polysulfide in cisplatin-induced nephrotoxicity. Redox Biol 2018; 15:513-521. [PMID: 29413963 PMCID: PMC5881418 DOI: 10.1016/j.redox.2018.01.012] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Revised: 01/19/2018] [Accepted: 01/24/2018] [Indexed: 01/03/2023] Open
Abstract
Cisplatin is a major chemotherapeutic drug for solid tumors whereas it may lead to severe nephrotoxicity. Despite decades of efforts, effective therapies remain largely lacking for this disease. In the current research, we investigated the therapeutic effect of hydrogen polysulfide, a novel hydrogen sulfide (H2S) derived signaling molecule, in cisplatin nephrotoxicity and the mechanisms involved. Our results showed that polysulfide donor Na2S4 ameliorated cisplatin-caused renal toxicity in vitro and in vivo through suppressing intracellular reactive oxygen species (ROS) generation and downstream mitogen-activated protein kinases (MAPKs) activation. Additionally, polysulfide may inhibit ROS production by simultaneously lessening the activation of NADPH oxidase and inducing nucleus translocation of nuclear factor erythroid 2-related factor 2 (Nrf2) in RPT cells. Interestingly, polysulfide possesses anti-cancer activity and is able to add on more anti-cancer effect to cisplatin in non-small cell lung cancer (NSCLC) cell lines. Moreover, we observed that the number of sulfur atoms in polysulfide well reflected the efficacy of these molecules not only in cell protection but also cancer inhibition which may serve as a guide for further development of polysulfide donors for pharmaceutical usage. Taken together, our study suggests that polysulfide may be a novel and promising therapeutic agent to prevent cisplatin-induced nephrotoxicity.
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Affiliation(s)
- Xu Cao
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117600, Singapore
| | - Xiaowei Nie
- Center of Clinical Research, Wuxi People's Hospital of Nanjing Medical University, Wuxi, Jiangsu 214023, PR China
| | - Siping Xiong
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117600, Singapore
| | - Lei Cao
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117600, Singapore
| | - Zhiyuan Wu
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117600, Singapore; Life Science Institute, National University of Singapore, Singapore
| | - Philip K Moore
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117600, Singapore; Life Science Institute, National University of Singapore, Singapore
| | - Jin-Song Bian
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117600, Singapore.
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Oxytocin is lower in African American men with diabetes and associates with psycho-social and metabolic health factors. PLoS One 2018; 13:e0190301. [PMID: 29300770 PMCID: PMC5754076 DOI: 10.1371/journal.pone.0190301] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2017] [Accepted: 12/12/2017] [Indexed: 12/13/2022] Open
Abstract
Objective Recently, it has been suggested that oxytocin (OT) has a role in metabolism and neuropsychiatry health and disease, and therefore, it may represent a potential therapeutic target. The current study aimed to investigate relationships between OT and glycemic status along with psycho-social and behavioral factors. Design and methods A total of 92 obese or overweight, African American, male subjects were enrolled in the study. Biometric and biochemical data were collected including oral glucose tolerance testing and urinary OT (measured by ELISA). Subjects also completed questionnaires on social and lifestyle factors. Results OT levels were found to be significantly lower in subjects with type 2 diabetes mellitus (T2DM) compared to normal glucose tolerance (p<0.05). When stratified by OT tertiles, subjects with higher OT had lower weight, body mass index (BMI) and hemoglobin A1c, but higher eGFR which remained significant after BMI adjustment. The highest OT tertile also had more smokers and more users of psychiatric medications. A stepwise ordered logistic regression supported these findings and could account for 21% of the variation in OT categories (pseudoR2 = 0.21). Conclusions In this unique population, OT was found lower in subjects with diabetes but higher with better renal function, cigarette smoking and use of psychiatric medications. Future studies are needed to confirm these findings and examine the potential therapeutic role of OT.
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Ragy MM, Aziz NM. Prevention of renal ischemia/perfusion-induced renal and hepatic injury in adult male Albino rats by oxytocin: role of nitric oxide. J Basic Clin Physiol Pharmacol 2017; 28:615-621. [PMID: 28742516 DOI: 10.1515/jbcpp-2016-0197] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2016] [Accepted: 04/28/2017] [Indexed: 06/07/2023]
Abstract
BACKGROUND Oxytocin (OT) has an anti-inflammatory and antioxidant effect in the different inflammatory models. The current study aimed to evaluate the protective function of OT in renal and hepatic damages triggered by renal ischemia/reperfusion (IR) in rats. Moreover, the effect of NG-nitro-l-arginine methyl ester (l-NAME) was investigated on the kidney and liver functions in renal IR model. METHODS Twenty-four rats were divided into four groups (six rats each) as follows: (1) Sham-operated group; (2) Renal IR group; (3) Renal IR+OT group; (4) Renal IR+OT+l-NAME. OT (1 mg/kg, i.p.) was administered 30 min prior to the induced ischemia and was repeated immediately before the reperfusion period. l-NAME (10 mg/kg, i.p.) was given 45 min before IR injury. RESULTS The results revealed that OT significantly attenuated the IR-induced elevations in the serum urea, creatinine, liver transaminases, and TNF-α levels, while nitric oxide (NO) and Bcl-2 levels were significantly increased compared with the IR group. OT also significantly compensated the decrease in the total antioxidant capacities (TAC) and lowered the elevated malondialdehyde (MDA) levels that were observed with renal IR in the renal and hepatic tissues. CONCLUSIONS In conclusion, OT ameliorates renal and hepatic damages triggered by renal IR, and this defense involves the suppression of inflammation and apoptosis with regulation of oxidant-antioxidant status. In addition, administration of l-NAME prior to OT partially reversed the protective effect of OT ensuring that one of the protective effects of OT was through the NO production.
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Alhoshani AR, Hafez MM, Husain S, Al-Sheikh AM, Alotaibi MR, Al Rejaie SS, Alshammari MA, Almutairi MM, Al-Shabanah OA. Protective effect of rutin supplementation against cisplatin-induced Nephrotoxicity in rats. BMC Nephrol 2017; 18:194. [PMID: 28619064 PMCID: PMC5472980 DOI: 10.1186/s12882-017-0601-y] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2016] [Accepted: 05/23/2017] [Indexed: 12/11/2022] Open
Abstract
Background Cisplatin (CP) is commonly used in the treatment of different types of cancer but nephrotoxicity has been a major limiting factor. Therefore, the present study aimed to study the possible protective effect of rutin against nephrotoxicity induced by cisplatin in rats. Methods Forty male Wistar albino rats were randomly divided into 4 groups. Rats of group 1 control group intraperitoneal (i.p.) received 2.5 ml/kg, group 2 CP group received single dose 5 mg/kg cisplatin i.p. group 3 rutin group orally received 30 mg/kg rutin group 4 (CP plus rutin) received CP and rutin as in group 2 and 3. Kidneys were harvested for histopathology and for the study the gene expression of c-Jun N-terminal kinases (JNK), Mitogen-activated protein kinase 4 (MKK4), MKK7, P38 mitogen-activated protein kinases (P38), tumor necrosis factors alpha (TNF-α), TNF Receptor-Associated Factor 2 (TRAF2), and interleukin-1 alpha (IL-1-α). Results The cisplatin single dose administration to rats induced nephrotoxicity associated with a significant increase in blood urea nitrogen (BUN) and serum creatinine and significantly increase Malondialdehyde (MDA) in kidney tissues by 230 ± 5.5 nmol/g compared to control group. The animal treated with cisplatin showed a significant increase in the expression levels of the IL-1α (260%), TRFA2 (491%), P38 (410%), MKK4 (263%), MKK7 (412%), JNK (680%) and TNF-α (300%) genes compared to control group. Additionally, histopathological examination showed that cisplatin-induced interstitial congestion, focal mononuclear cell inflammatory, cell infiltrate, acute tubular injury with reactive atypia and apoptotic cells. Rutin administration attenuated cisplatin-induced alteration in gene expression and structural and functional changes in the kidney. Additionally, histopathological examination of kidney tissues confirmed gene expression data. Conclusion The present study suggested that the anti-oxidant and anti-inflammatory effect of rutin may prevent CP-induced nephrotoxicity via decreasing the oxidative stress, inhibiting the interconnected ROS/JNK/TNF/P38 MAPK signaling pathways, and repairing the histopathological changes against cisplatin administration.
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Affiliation(s)
- Ali R Alhoshani
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh, 11451, Kingdom of Saudi Arabia
| | - Mohamed M Hafez
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh, 11451, Kingdom of Saudi Arabia
| | - Sufia Husain
- Department of Pathology, College of Medicine, King Saud University, P.O. Box 2457, Riyadh, 11451, Kingdom of Saudi Arabia
| | - Abdel Malek Al-Sheikh
- Department of Pathology, College of Medicine, King Saud University, P.O. Box 2457, Riyadh, 11451, Kingdom of Saudi Arabia
| | - Moureq R Alotaibi
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh, 11451, Kingdom of Saudi Arabia
| | - Salim S Al Rejaie
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh, 11451, Kingdom of Saudi Arabia
| | - Musaad A Alshammari
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh, 11451, Kingdom of Saudi Arabia
| | - Mashal M Almutairi
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh, 11451, Kingdom of Saudi Arabia
| | - Othman A Al-Shabanah
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh, 11451, Kingdom of Saudi Arabia.
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Oxytocin as a protective agent in cisplatin-induced ototoxicity. Cancer Chemother Pharmacol 2016; 77:875-9. [DOI: 10.1007/s00280-016-2978-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2016] [Accepted: 01/26/2016] [Indexed: 01/29/2023]
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Yuksel B, Ital I, Balaban O, Kocak E, Seven A, Kucur SK, Erbakirci M, Keskin N. Immediate breastfeeding and skin-to-skin contact during cesarean section decreases maternal oxidative stress, a prospective randomized case-controlled study. J Matern Fetal Neonatal Med 2015; 29:2691-6. [PMID: 26415029 DOI: 10.3109/14767058.2015.1101447] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
OBJECTIVE Immediate skin-to-skin contact (ISSC) and early breastfeeding are recommended for the wellbeing of the neonate. In this study, we aimed to evaluate the effect of ISSC and early breastfeeding on maternal oxidative stress and postoperative pain. METHODS A total of 90 patients were randomized into two groups based on the timing of skin-to-skin contact and breastfeeding. Group 1 (n = 45) was provided ISSC and breastfeeding in the operating room during the cesarean section (C/S). Group 2 (n = 45) breastfed their babies 1 h after the C/S. As markers of oxidative stress, maternal serum levels of total antioxidant status (TAS), total oxidant status (TOS) and oxidative stress indices (OSI) were evaluated. Maternal oxytocin levels and the relation between these parameters and postoperative pain were also evaluated. RESULTS The postoperative TAS levels were significantly higher, whereas TOS and OSI levels were lower in Group 1 than Group 2. Negative correlations between oxytocin level and postoperative TOS and OSI were observed, as was a positive correlation between oxytocin level and postoperative TAS. CONCLUSIONS The effect of ISSC and early breastfeeding on mothers was documented for the first time in this study. Our results demonstrated ISSC and early breastfeeding during C/S reduce maternal oxidative stress.
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Affiliation(s)
| | - Ilker Ital
- b Department of Anesthesiology and Reanimation
| | | | - Emel Kocak
- c Department of Biochemistry , Dumlupinar University Faculty of Medicine , Kutahya , Turkey
| | - Ali Seven
- a Department of Obstetrics and Gynecology
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Sherif IO, Al-Mutabagani LA, Alnakhli AM, Sobh MA, Mohammed HE. Renoprotective effects of angiotensin receptor blocker and stem cells in acute kidney injury: Involvement of inflammatory and apoptotic markers. Exp Biol Med (Maywood) 2015; 240:1572-9. [PMID: 25825359 DOI: 10.1177/1535370215577582] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2014] [Accepted: 01/20/2015] [Indexed: 12/11/2022] Open
Abstract
Cisplatin, Cis-diamminedichloroplatinum (CDDP), is a platinum-based chemotherapy drug, and its chemotherapeutic use is restricted by nephrotoxicity. Inflammatory and apoptotic mechanisms play a central role in the pathogenesis of CDDP-induced acute kidney injury (AKI). The aim of this study was to compare the therapeutic potential of candesartan, angiotensin II receptor blocker, versus bone marrow-derived mesenchymal stem cells (BM-MSCs) in a rat model of CDDP-induced nephrotoxicity. Adult male Wistar rats (n = 40) were divided into four groups; Normal control: received saline injection, CDPP group: received CDDP injection (6 mg/kg single dose), Candesartan group: received candesartan (10 mg/kg/day) for 10 days + CDDP at day 3, and Stem cells group: received CDDP + BM-MSCs intravenously one day after CDDP injection. The rats were sacrificed seven days after CDDP injection. Significant elevation in serum creatinine and urea, renal levels of tumor necrosis factor (TNF)-α and monocyte chemoattractant protein (MCP)-1, renal expressions of nuclear factor kappa B (NF-κB), p38-mitogen-activated protein kinase (MAPK), caspase-3 and Bcl-2-associated x protein (Bax) were found in CDDP-injected rats when compared to normal rats. Both candesartan and BM-MSCs ameliorated renal function and reduced significantly the inflammatory markers (TNF-α , NF-κB, p38-MAPK and MCP-1) and apoptotic markers (caspase-3 and Bax) in renal tissue after CDDP injection. Candesartan as well as BM-MSCs have anti-inflammatory and anti-apoptotic actions and they can be used as nephroprotective agents against CDDP-induced nephrotoxicity. BM-MSCs is more effective than candesartan in amelioration of AKI induced by CDDP.
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Affiliation(s)
- Iman O Sherif
- Pharmaceutical Sciences Department, College of Pharmacy, Princess Nourah bint Abdulrahman University, Riyadh 11671, Kingdom of Saudi Arabia
| | - Laila A Al-Mutabagani
- Chemistry Department, College of Science, Princess Nourah bint Abdulrahman University, Riyadh 11671, Kingdom of Saudi Arabia
| | - Anwar M Alnakhli
- Pharmaceutical Sciences Department, College of Pharmacy, Princess Nourah bint Abdulrahman University, Riyadh 11671, Kingdom of Saudi Arabia
| | - Mohamed A Sobh
- Zoology Department, College of Science, Urology and Nephrology Center, Mansoura University, Mansoura 35516, Egypt
| | - Hoda E Mohammed
- Biochemistry Department, College of Pharmacy, Zagazig University, Zagazig 44519, Egypt
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Han D, Scott EL, Dong Y, Raz L, Wang R, Zhang Q. Attenuation of mitochondrial and nuclear p38α signaling: a novel mechanism of estrogen neuroprotection in cerebral ischemia. Mol Cell Endocrinol 2015; 400:21-31. [PMID: 25462588 DOI: 10.1016/j.mce.2014.11.010] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2014] [Revised: 11/16/2014] [Accepted: 11/17/2014] [Indexed: 12/12/2022]
Abstract
P38 mitogen-activated protein kinase (MAPK) is a pro-apoptotic and pro-inflammatory protein that is activated in response to cellular stress. While p38 is known to be activated in response to cerebral ischemia, the precise role of p38 and its isoforms in ischemia-induced neuronal apoptosis remains unclear. In the current study, we examined the differential activation and functional roles of p38α and p38β MAPK isoforms in short-term ovariectomized female rats treated with either the neuroprotective ovarian hormone 17beta-estradiol (E2) or placebo in a model of global cerebral ischemia (GCI). GCI induced biphasic activation of total p38 in the hippocampal CA1, with peaks at 30 min and 1 day after 10-min ischemia-reperfusion. Further study demonstrated that activated p38α, but not p38β, translocated to the nucleus 30 min and 3 h post reperfusion, and that this event coincided with increased phosphorylation of activating transcription factor 2 (ATF2), a p38 target protein. Intriguingly, activated p38α was also enhanced in mitochondrial fractions of CA1 neurons 1 day after GCI, and there was loss of mitochondrial membrane potential, as well as enhanced cytochrome c release and caspase-3 cleavage at 2 days post GCI. Importantly, E2 prevented the biphasic activation of p38, as well as both nuclear and mitochondrial translocation of p38α after GCI, and these findings correlated with attenuation of mitochondrial dysfunction and delayed neuronal cell death in the hippocampal CA1. Furthermore, administration of a p38 inhibitor was able to mimic the neuroprotective effects of E2 in the hippocampal CA1 region by preventing nuclear and mitochondrial translocation of p38α, loss of mitochondrial membrane potential, and neuronal apoptosis. As a whole, this study suggests that changes in subcellular localization of the activated p38α isoform are required for neuronal apoptosis following GCI, and that E2 exerts robust neuroprotection, in part, through dual inhibition of activation and subcellular trafficking of p38α.
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Affiliation(s)
- Dong Han
- Jiangsu Key Laboratory of Anesthesiology, Xuzhou Medical College, Jiangsu 221004, China
| | - Erin L Scott
- Department of Neuroscience and Regenerative Medicine, Medical College of Georgia at Georgia Regents University, Augusta, GA 30912, USA
| | - Yan Dong
- Department of Neuroscience and Regenerative Medicine, Medical College of Georgia at Georgia Regents University, Augusta, GA 30912, USA
| | - Limor Raz
- Department of Neuroscience and Regenerative Medicine, Medical College of Georgia at Georgia Regents University, Augusta, GA 30912, USA
| | - Ruimin Wang
- Department of Neuroscience and Regenerative Medicine, Medical College of Georgia at Georgia Regents University, Augusta, GA 30912, USA; Neurobiology Institute of Medical Research Centre, Hebei United University, Tangshan, Hebei 06300, China
| | - Quanguang Zhang
- Department of Neuroscience and Regenerative Medicine, Medical College of Georgia at Georgia Regents University, Augusta, GA 30912, USA.
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Vargas-Martínez F, Uvnäs-Moberg K, Petersson M, Olausson HA, Jiménez-Estrada I. Neuropeptides as neuroprotective agents: Oxytocin a forefront developmental player in the mammalian brain. Prog Neurobiol 2014; 123:37-78. [DOI: 10.1016/j.pneurobio.2014.10.001] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2014] [Accepted: 10/06/2014] [Indexed: 02/07/2023]
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Sherif IO. Amelioration of cisplatin-induced nephrotoxicity in rats by triterpenoid saponin of Terminalia arjuna. Clin Exp Nephrol 2014; 19:591-7. [PMID: 25389052 DOI: 10.1007/s10157-014-1056-0] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2014] [Accepted: 11/05/2014] [Indexed: 12/12/2022]
Abstract
BACKGROUND Cisplatin is a potent anti-tumor compound. Nephrotoxicity-inducing oxidative stress is a common side effect. This study was conducted to find out whether, the triterpenoid saponin of Terminalia arjuna (TA), Arjunolic acid which is a natural antioxidant, could prevent cisplatin-induced renal toxicity and if so, explore its possible renoprotective mechanism. METHODS Thirty male Sprague-Dawley rats were divided into three groups: CONTROL GROUP rats received saline injection, cisplatin group: rats injected intraperitoneally with 7 mg/kg cisplatin and Arjunolic acid group: rats received 20 mg/kg Arjunolic acid daily for 10 days with cisplatin injection on day 5. Serum creatinine and blood urea nitrogen (BUN) were determined and kidney sections were obtained for histopathology. Oxidative stress was evaluated in kidney homogenates by measuring malondialdehyde (MDA), reduced glutathione (GSH) and nitric oxide (NO) levels. Renal gene expressions of transforming growth factor-beta (TGF-β), nuclear factor-kappa B (NF-κB), kidney injury molecule-1 (Kim-1) and B cell lymphoma-2 (Bcl-2) were estimated. RESULTS Cisplatin-treated rats showed a significant reduction in renal GSH and a significant elevation of serum creatinine, BUN, MDA and NO renal levels when compared with control. Moreover, upregulation of TGF-β, NF-κB and Kim-1 along with downregulation of Bcl-2 renal expressions were also observed in cisplatin-treated rats in comparison to control. All these markers were significantly reversed by TA triterpenoid saponin administration. CONCLUSION Arjunolic acid ameliorated the nephrotoxic biochemical changes induced by cisplatin supporting its renoprotective effects which may be mediated by attenuation of oxidative stress markers, downregulation of renal expressions of fibrotic (TGF-β), inflammatory (NF-κB) and kidney injury (Kim-1) markers along with upregulation of renal antiapoptotic marker (Bcl-2) gene expressions.
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Affiliation(s)
- Iman O Sherif
- Biochemistry Department, Faculty of Pharmacy, Emergency Hospital, Mansoura University, Mansoura, 35516, Egypt,
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Trujillo J, Molina-Jijón E, Medina-Campos ON, Rodríguez-Muñoz R, Reyes JL, Barrera D, Pedraza-Chaverri J. Superoxide anion production and expression of gp91(phox) and p47(phox) are increased in glomeruli and proximal tubules of cisplatin-treated rats. J Biochem Mol Toxicol 2014; 29:149-56. [PMID: 25388649 DOI: 10.1002/jbt.21679] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2014] [Revised: 09/25/2014] [Accepted: 10/08/2014] [Indexed: 01/20/2023]
Abstract
The chemotherapeutic drug cisplatin has some side effects including nephrotoxicity that has been associated with reactive oxygen species production, particularly superoxide anion. The major source of superoxide anion is nicotinamide adenine dinucleotide phosphate hydrogen (NADPH) oxidase. However, the specific segment of the nephron in which superoxide anion is produced has not been identified. Rats were sacrificed 72 h after cisplatin injection (7.5 mg/kg), and kidneys were obtained to isolate glomeruli and proximal and distal tubules. Cisplatin induced superoxide anion production in glomeruli and proximal tubules but not in distal tubules. This enhanced superoxide anion production was prevented by diphenylene iodonium, an inhibitor of NADPH oxidase. Consistently, this effect was associated with the increased expression of gp91(phox) and p47(phox), subunits of NADPH oxidase. The enhanced superoxide anion production in glomeruli and proximal tubules, associated with the increased expression of gp91(phox) and p47(phox), is involved in the oxidative stress in cisplatin-induced nephrotoxicity.
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Affiliation(s)
- Joyce Trujillo
- Department of Biology, Faculty of Chemistry, National Autonomous University of Mexico (UNAM), University City, Mexico, D.F., 04510, Mexico
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Altirriba J, Poher AL, Caillon A, Arsenijevic D, Veyrat-Durebex C, Lyautey J, Dulloo A, Rohner-Jeanrenaud F. Divergent effects of oxytocin treatment of obese diabetic mice on adiposity and diabetes. Endocrinology 2014; 155:4189-201. [PMID: 25157455 DOI: 10.1210/en.2014-1466] [Citation(s) in RCA: 88] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Oxytocin has been suggested as a novel therapeutic against obesity, because it induces weight loss and improves glucose tolerance in diet-induced obese rodents. A recent clinical pilot study confirmed the oxytocin-induced weight-reducing effect in obese nondiabetic subjects. Nevertheless, the mechanisms involved and the impact on the main comorbidity associated with obesity, type 2 diabetes, are unknown. Lean and ob/ob mice (model of obesity, hyperinsulinemia, and diabetes) were treated for 2 weeks with different doses of oxytocin, analogues with longer half-life (carbetocin) or higher oxytocin receptor specificity ([Thr4,Gly7]-oxytocin). Food and water intake, body weight, and glycemia were measured daily. Glucose, insulin, and pyruvate tolerance, body composition, several hormones, metabolites, gene expression, as well as enzyme activities were determined. Although no effect of oxytocin on the main parameters was observed in lean mice, the treatment dose-dependently reduced food intake and body weight gain in ob/ob animals. Carbetocin behaved similarly to oxytocin, whereas [Thr4,Gly7]-oxytocin (TGOT) and a low oxytocin dose decreased body weight gain without affecting food intake. The body weight gain-reducing effect was limited to the fat mass only, with decreased lipid uptake, lipogenesis, and inflammation, combined with increased futile cycling in abdominal adipose tissue. Surprisingly, oxytocin treatment of ob/ob mice was accompanied by a worsening of basal glycemia and glucose tolerance, likely due to increased corticosterone levels and stimulation of hepatic gluconeogenesis. These results impose careful selection of the conditions in which oxytocin treatment should be beneficial for obesity and its comorbidities, and their relevance for human pathology needs to be determined.
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Affiliation(s)
- Jordi Altirriba
- Laboratory of Metabolism (J.A., A.-L.P., A.C., C.V.-D., J.L., F.R.-J.), Department of Internal Medicine Specialties, Faculty of Medicine, University of Geneva, Geneva 1211, Switzerland; and Department of Medicine/Physiology (D.A., A.D.), University of Fribourg, Fribourg 1700, Switzerland
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Thymoquinone attenuates Doxorubicin-induced nephrotoxicity in rats: Role of Nrf2 and NOX4. Chem Biol Interact 2014; 223:102-8. [PMID: 25268985 DOI: 10.1016/j.cbi.2014.09.015] [Citation(s) in RCA: 85] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2014] [Revised: 08/21/2014] [Accepted: 09/22/2014] [Indexed: 12/22/2022]
Abstract
Doxorubicin (DOX) is a chemotherapeutic drug widely used for the treatment of various neoplastic conditions. However, its application is limited because of its toxic effects in many organs. Nephrotoxicity is a serious effect of DOX. The aim of this study was to determine the protective effect of thymoquinone (TQ), a predominant bioactive constituent of Nigella sativa oil, with well documented potent anti-oxidative and anti-inflammatory effects. Male Sprague Dawley rats received DOX (3.5mg/kg twice weekly) with or without TQ (50mg/kg/day, oral supplementation) for 3weeks. Elevated levels of serum urea, creatinine and urinary albumin excretion were observed in DOX-treated animals, indicating DOX-induced nephrotoxicity. Moreover, enhanced lipid peroxidation (LPO), as equivalents of malondialdehyde (MDA), in the renal tissue was accompanied by a significant decrease in the activities of superoxide dismutase (SOD) and glutathione-S-transferase (GST) in DOX-treated group. In addition, DOX treatment induced significant increase in renal levels of tumor necrosis factor-α (TNF-α), interleukin-6 (IL-6), and NADPH oxidase 4 (NOX-4), and marked decrease in interleukin-10 (IL-10) levels, nuclear factor erythroid 2-related factor 2 (Nrf2) mRNA levels and nuclear binding activity. Histopathological analysis showed severe damage in the renal tissue of DOX treated animals. Animals treated with TQ were found to have markedly reduced renal damage with restoration of all mentioned markers toward normal values. In conclusion, DOX-induced renal damage involved a redox imbalance in renal tissue, which could be reversed by TQ, suggesting a possible potential role for TQ in DOX-induced nephrotoxicity.
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Oxytocin improves follicular reserve in a cisplatin-induced gonadotoxicity model in rats. BIOMED RESEARCH INTERNATIONAL 2014; 2014:703691. [PMID: 24959584 PMCID: PMC4053297 DOI: 10.1155/2014/703691] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/23/2014] [Revised: 04/11/2014] [Accepted: 04/23/2014] [Indexed: 11/30/2022]
Abstract
Cisplatin (CP), an antitumor agent, has been shown to cause ovarian injury and dysfunction in both animal and human studies. The present study was conducted to investigate the protective effect of oxytocin (OT) on CP-induced ovarian toxicity in rats. Twenty-one adult female rats were included in the study. Fourteen rats were administered intraperitoneally CP (2 mg/kg/day) twice a week for 5 weeks. Control group (n = 7) did not receive any treatment. Following treatment, CP-received rats were randomly divided into two groups and treated with either saline (1 mL/kg/day, n = 7) or OT (160 μg/kg/day, n = 7) for 5 weeks. Then, ovarian toxicity and effects of OT were evaluated by histomorphological and biochemical analysis. Our findings revealed a significant reduction in the number of follicles at each grade in saline-treated group. AMH level was significantly lower in saline group compared to control (P < 0.0005). OT treatment significantly attenuated CP toxicity in ovaries and increased AMH levels compared to saline group (P < 0.005). Also, administration of OT lessened lipid peroxidation and prevented glutathione depletion in CP-treated rats (P < 0.05). These results indicated that OT could lessen the CP-induced ovarian damage and improve follicular reserve by preventing oxidative damage.
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Akdemir A, Erbas O, Gode F, Ergenoglu M, Yeniel O, Oltulu F, Yavasoglu A, Taskiran D. Protective effect of oxytocin on ovarian ischemia-reperfusion injury in rats. Peptides 2014; 55:126-30. [PMID: 24630974 DOI: 10.1016/j.peptides.2014.02.015] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2014] [Revised: 02/24/2014] [Accepted: 02/25/2014] [Indexed: 01/14/2023]
Abstract
Oxytocin (OT), a neurohypophysial nonapeptide, plays dual role as a neurotransmitter/neuromodulator and a hormone. It has also well known protective properties against ischemia/reperfusion organ damage. This study investigated the effect of OT on experimentally induced ovarian torsion/de-torsion ischemia/reperfusion (I/R) injury in rats. Sprague-Dawley rats were assigned to five treatment groups (n=7/group): Group 1, sham-operated; Group 2, torsion; Group 3, 80 IU/kg of OT administration 30 min prior to torsion; Group 4, torsion/de-torsion; and Group 5, torsion followed by 80 IU/kg of OT administration 30 min prior to de-torsion. OT administration significantly decreased the tissue malondialdehyde (MDA) levels in both the torsion and OT group (Group 3), and torsion/de-torsion OT group (Group 5) in comparison with the torsion-only group (Group 2) and torsion/de-torsion group (Group 4). Histopathological finding scores including follicular degeneration, edema, hemorrhage, vascular congestion, and infiltration by inflammatory cells were found to be significantly decreased in the torsion and OT group (Group 3), and torsion/de-torsion OT group (Group 5) when compared with the torsion-only group (Group 2) and torsion/de-torsion group (Group 4). In conclusion, these results, verified with histopathologic evaluation and biochemical assays, suggest a probable protective role for OT in ischemia and I/R injury in rat ovaries.
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Affiliation(s)
- Ali Akdemir
- Department of Obstetrics and Gynecology, Ege University School of Medicine, Izmir, Turkey
| | - Oytun Erbas
- Department of Physiology, Ege University School of Medicine, Izmir, Turkey
| | - Funda Gode
- Department of Obstetrics and Gynecology, Kent Hospital, Izmir, Turkey.
| | - Mete Ergenoglu
- Department of Obstetrics and Gynecology, Ege University School of Medicine, Izmir, Turkey
| | - Ozgur Yeniel
- Department of Obstetrics and Gynecology, Ege University School of Medicine, Izmir, Turkey
| | - Fatih Oltulu
- Department of Histology and Embryology, Ege University School of Medicine, Izmir, Turkey
| | - Altug Yavasoglu
- Department of Histology and Embryology, Ege University School of Medicine, Izmir, Turkey
| | - Dilek Taskiran
- Department of Physiology, Ege University School of Medicine, Izmir, Turkey
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Liu H, Chen X, Han Y, Li C, Chen P, Su S, Zhang Y, Pan Z. Rho kinase inhibition by fasudil suppresses lipopolysaccharide-induced apoptosis of rat pulmonary microvascular endothelial cells via JNK and p38 MAPK pathway. Biomed Pharmacother 2014; 68:267-75. [DOI: 10.1016/j.biopha.2013.12.003] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2013] [Accepted: 12/10/2013] [Indexed: 10/25/2022] Open
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Palipoch S, Punsawad C, Koomhin P, Suwannalert P. Hepatoprotective effect of curcumin and alpha-tocopherol against cisplatin-induced oxidative stress. Altern Ther Health Med 2014; 14:111. [PMID: 24674233 PMCID: PMC3986848 DOI: 10.1186/1472-6882-14-111] [Citation(s) in RCA: 73] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2013] [Accepted: 03/24/2014] [Indexed: 12/31/2022]
Abstract
Background cis-Diammineplatinum (II) dichloride (cisplatin) is the important anti-cancer agent useful in treatment of various cancers. Unfortunately, it can produce unwanted side effects in various tissues, including the liver. The present study investigated the possible protective role of curcumin and α-tocopherol against oxidative stress-induced hepatotoxicity in rats upon cisplatin treatment. Methods Male Wistar rats were divided into five groups (n = 5). Saline and Cis groups, rats were intraperitoneal (i.p.) injected with normal saline and cisplatin [20 mg/kg body weight (b.w.)], respectively. Cis + α-tocopherol group, Cis + Cur group and Cis + α-tocopherol + Cur group, rats were pre-treated with a single dose of α-tocopherol (250 mg/kg b.w.), curcumin (200 mg/kg b.w.) and combined α-tocopherol with curcumin, respectively, for 24 h prior the administration of cisplatin. After 72 h of first injection, specimens were collected. Liver enzyme, lipid peroxidation biomarker, liver histopathology and gene expression of liver nicotinamide adenine dinucleotide phosphate (NADPH) oxidase were investigated. Results Cisplatin revealed a significant increase of hepatic malondialdehyde (MDA) levels and a significant reduction of hepatic superoxide dismutase (SOD) and catalase activities compared to the saline group. It elicited a marked increase of the serum alanine aminotransferase (ALT) and aspartate aminotransferase (AST) levels and demonstrated the liver pathologies including liver congestion, disorganization of hepatic cords and ground glass appearance of hepatocytes. It also demonstrated a significant increase of NADPH oxidase gene expression compared to saline group. Pre-treatment with combined curcumin and α-tocopherol improved the liver enzymes, lipid peroxidation biomarker, liver histopathology and gene expression of liver NADPH oxidase in cisplatin-treated rats. Conclusions The findings indicate that pre-treatment with combined curcumin and α-tocopherol can protect cisplatin-induced hepatotoxicity including the biochemical, histological and molecular aspects. The down-regulations of NADPH oxidase gene expression may be involved in abrogating oxidative stress via reduction of reactive oxygen species (ROS) production.
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Palipoch S, Punsawad C. Biochemical and histological study of rat liver and kidney injury induced by Cisplatin. J Toxicol Pathol 2013; 26:293-9. [PMID: 24155562 PMCID: PMC3787607 DOI: 10.1293/tox.26.293] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2013] [Accepted: 06/03/2013] [Indexed: 01/13/2023] Open
Abstract
Cisplatin is a chemotherapeutic agent widely used in treatment of several cancers. It is documented as a major cause of clinical nephrotoxicity and hepatotoxicity. The purpose of this study was to investigate the involvement of oxidative stress in the pathogenesis of cisplatin-induced liver and kidney injury. Wistar rats were divided into four groups. Group 1 (control) was intraperitoneally (IP) injected with a single dose of 0.85% normal saline. Groups 2, 3 and 4 were IP injected with single doses of cisplatin at 10, 25 and 50 mg/kg body weight (BW), respectively. At 24, 48, 72, 96 and 120 h after injection, BW, levels of alanine aminotransferase (ALT), aspartate aminotransferase (AST), blood urea nitrogen (BUN), creatinine, malondialdehyde (MDA), and activity of superoxide dismutase (SOD) and histology of the liver and kidney were evaluated. Cisplatin caused a reduction in BW of rats in groups 2, 3 and 4 at all post injection intervals. The levels of serum ALT, AST, BUN and creatinine and MDA of the kidney and liver were markedly increased especially at 48 and 72 h, whereas the activity of SOD was decreased after cisplatin injection. Liver sections revealed moderate to severe congestion with dilation of the hepatic artery, portal vein and bile duct and disorganization of hepatic cords at 50 mg/kg of cisplatin. Kidney sections illustrated mild to moderate tubular necrosis at 25 and 50 mg/kg of cisplatin. Therefore, oxidative stress was implicated in the pathogenesis of liver and kidney injury causing biochemical and histological alterations.
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Affiliation(s)
- Sarawoot Palipoch
- School of Medicine, Walailak University, Nakhon Si Thammarat 80161, Thailand
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Romero-Canelón I, Sadler PJ. Next-Generation Metal Anticancer Complexes: Multitargeting via Redox Modulation. Inorg Chem 2013; 52:12276-91. [DOI: 10.1021/ic400835n] [Citation(s) in RCA: 307] [Impact Index Per Article: 27.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
| | - Peter J. Sadler
- Department of Chemistry, University of Warwick, Coventry CV4 7AL, U.K
- Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong,
People’s Republic of China
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Yan Z, Ni Y, Wang P, Chen J, He H, Sun J, Cao T, Chen J, Zhao Z, Luo Z, Chen L, Liu D, Zhu Z. Peroxisome proliferator-activated receptor delta protects against obesity-related glomerulopathy through the P38 MAPK pathway. Obesity (Silver Spring) 2013; 21:538-45. [PMID: 23592661 DOI: 10.1002/oby.20103] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/18/2012] [Accepted: 08/23/2012] [Indexed: 12/12/2022]
Abstract
OBJECTIVE Obesity is a prominent component of metabolic syndrome and a major risk factor for renal disease. The aim of this study was to explore the effect of cross-talk between peroxisome proliferator-activated receptor (PPAR)δ and p38 mitogen-activated protein kinase (p38 MAPK) on obesity-related glomerulopathy. DESIGN AND METHODS Male Wistar rats were randomly assigned to standard laboratory chow or a high-fat diet for 32 weeks. Glomerular mesangial cells HBZY-1 and mature differentiation 3T3-L1 cells were cocultured and were transfected with PPARδ-expressing vectors or treated with agonist or inhibitor of PPARδ or p38 MAPK. RESULTS Rats on a high-fat diet showed typical characteristics of metabolic syndrome including obesity, dyslipidemia, insulin resistance, and hypertension. Rats on a high-fat diet also had significant glomerular hypertrophy and extracellular matrix accumulation, which were accompanied by increased p38 MAPK phosphorylation and decreased PPARδ expression in the kidney tissue. The roles of p38 MAPK and PPARδ in a coculture system of mesangial cells and mature differentiation 3T3-L1 cells were further explored. PPARδ suppression promoted laminin and type IV collagen secretion through p38 MAPK phosphorylation in mesangial cells, whereas PPARδ overexpression or PPARδ agonist attenuated phosphorylation of p38 MAPK and laminin and type IV collagen secretion. CONCLUSIONS The characteristics of obesity-related glomerulopathy, which might be partly caused by PPARδ suppression-induced p38 MAPK activation and laminin and type IV collagen secretion was demonstrated.
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Affiliation(s)
- Zhencheng Yan
- Center for Hypertension and Metabolic Diseases, Department of Hypertension and Endocrinology, Chongqing Hypertension Institut, Chongqing 400042, China
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Erbas O, Yılmaz M, Korkmaz HA, Bora S, Evren V, Peker G. Oxytocin inhibits pentylentetrazol-induced seizures in the rat. Peptides 2013; 40:141-4. [PMID: 23246528 DOI: 10.1016/j.peptides.2012.12.003] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/23/2012] [Revised: 12/05/2012] [Accepted: 12/05/2012] [Indexed: 11/30/2022]
Abstract
We aimed to reveal the anti-convulsant effects of oxytocin (OT) in pentylenetetrazol (PTZ)-induced seizures in rats. Thirty rats were randomly divided into 5 equal groups. Using stereotaxy, we implanted electroencephologram (EEG) electrodes in the left nucleus of the posterior thalamus. After 2 days, the first and second groups were used as the control and PTZ (35 mg/kg) groups, respectively. We administered 40, 80 and 160 nmol/kg OT+35 mg/kg PTZ to the rats, constituting the third, fourth, and fifth groups, respectively, for 5 days. At the end of 5 days, we recorded EEGs via bipolar EEG electrodes. After 12h, all groups except the first received 70 mg/kg PTZ and we determined the dose-response ratio. Racine's Convulsion Scale was used to evaluate seizures. The spike-wave complex percentage in the EEG was determined as 0% for the first group, 38.6%±7.2 for the second group, 36.4%±5.6 for the third group, 4.3%±1.8 for the fifth group and 4.1%±1.1 for the fifth group. The fourth and fifth groups had significantly decreased spike-wave complex percentages compared to the second group (p<0.0001). OT may prevent PTZ-induced epilepsy on an EEG. OT may also be considered for use in the treatment of epilepsy in the future.
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Affiliation(s)
- Oytun Erbas
- Ege University Faculty of Medicine, Department of Physiology, Izmir, Turkey
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Elberry AA, Refaie SM, Kamel M, Ali T, Darwish H, Ashour O. Oxytocin ameliorates cisplatin-induced nephrotoxicity in Wistar rats. Ann Saudi Med 2013; 33:57-62. [PMID: 23458943 PMCID: PMC6078576 DOI: 10.5144/0256-4947.2013.57] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
BACKGROUND AND OBJECTIVES The clinical use of cisplatin (CP) is highly limited because of its renal toxicity and the production of reactive oxygen species (ROS) that intensify the cytotoxic effects. Oxytocin (OT) was previously shown to have antioxidant activity. DESIGN AND SETTING Experimental study on male Wistar albino rats performed in the Faculty of Pharmacy, King Abdulaziz University, Jeddah, Saudi Arabia. METHODS Forty-eight male Wistar albino rats were classified into four equal groups: a control group, OT only-treated group which received OT twice (500 micro g/kg intraperitoneally (ip) 30 minutes and just before saline administration), a CP-induced nephrotoxicity group that received a single dose of CP (7.5 mg/kg ip) and treated with saline, and CP+OT group treated with the same previous doses. Seventy-two hours after CP administration, the rats were sacrificed and blood was withdrawn for determination of urea, creatinine, albumin and lactate dehydrogenase (LDH). The kidneys were extracted for histopathological examination and determination of the tissue levels of reduced glutathione (GSH), thiobarbituric acid reactive substances (TBARS) and nitric oxide end product nitrite (NO(2)). Glutathione S-transferase (GST), catalase (CAT), superoxide dismutase (SOD), glutathione peroxidase (GPx) and myeloperoxidase (MPO) activities were assessed. RESULTS CP-induced renal injury was evidenced histopathologically and manifested by a significant increase in serum LDH activity as well as urea and creatinine levels. Moreover, renal injury was associated with decreased renal tissue activities of CAT, SOD, GPx and GST as well as GSH level. On the other hand, renal tissue content of TBARS and NO(2) as well as the activity of MPO were increased. Alterations in these biochemical and histopathological indices due to CP were attenuated by OT. CONCLUSION OT protected rats from CP-induced nephrotoxicity. Such protection is attributed, at least in part, to its antioxidant activity.
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Affiliation(s)
- Ahmed A Elberry
- Faculty of Pharmacy, King Abdulaziz University, Jeddah, Saudi Arabia.
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