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Rios KE, Alamneh Y, Werner LM, Leung C, Pavlovic R, Abu-Taleb R, Thanapaul RJRS, Lee S, Hull D, Czintos C, Su W, Getnet D, Antonic V, Bobrov AG. Optimization of a Lethal, Combat-Relevant Model of Sterile Inflammation in Mice for Drug Candidate Screening. Mil Med 2024; 189:694-701. [PMID: 39160880 DOI: 10.1093/milmed/usae233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 03/09/2024] [Accepted: 04/19/2024] [Indexed: 08/21/2024] Open
Abstract
INTRODUCTION Extensive trauma, commonly seen in wounded military Service Members, often leads to a severe sterile inflammation termed systemic inflammatory response syndrome (SIRS), which can progress to multiple organ dysfunction syndrome (MODS) and death. MODS is a serious threat to wounded Service Members, historically causing 10% of all deaths in trauma admissions at a forward deployed combat hospital. The importance of this problem will be exacerbated in large-scale combat operations, in which evacuation will be delayed and care of complex injuries at lower echelons of care may be prolonged. The main goal of this study was to optimize an existing mouse model of lethal SIRS/MODS as a therapeutic screening platform for the evaluation of immunomodulatory drugs. MATERIALS AND METHODS Male C57BL/6 mice were euthanized, and the bones and muscles were collected and blended into a paste termed tissue-bone matrix (TBX). The TBX at 12.5%-20% relative to body weight of each recipient mouse was implanted into subcutaneous pouches created on the dorsum of anesthetized animals. Mice were observed for clinical scores for up to 48 hours postimplantation and euthanized at the preset point of moribundity. To test effects of anesthetics on TBX-induced mortality, animals received isoflurane or ketamine/xylazine (K/X). In a separate set of studies, mice received TBX followed by intraperitoneal injection with 20 mg/kg or 40 mg/kg Eritoran or a placebo carrier. All Eritoran studies were performed in a blinded fashion. RESULTS We observed that K/X anesthesia significantly increased the lethality of the implanted TBX in comparison to inhaled anesthetics. Although all the mice anesthetized with isoflurane and implanted with 12.5% TBX survived for 24 hours, 60% of mice anesthetized with K/X were moribund by 24 hours postimplantation. To mimic more closely the timing of lethal SIRS/MODS following polytrauma in human patients, we extended observation to 48 hours. We performed TBX dose-response studies and found that as low as 15%, 17.5%, and 20% TBX caused moribundity/mortality in 50%, 80%, and 100% mice, respectively, over a 48-hour time period. With 17.5% TBX, we tested if moribundity/mortality could be rescued by anti-inflammatory drug Eritoran, a toll-like receptor 4 antagonist. Neither 20 mg/kg nor 40 mg/kg doses of Eritoran were found to be effective in this model. CONCLUSIONS We optimized a TBX mouse model of SIRS/MODS for the purpose of evaluating novel therapeutic interventions to prevent trauma-related pathophysiologies in wounded Service Members. Negative effects of K/X on lethality of TBX should be further evaluated, particularly in the light of widespread use of ketamine in treatment of pain. By mimicking muscle crush, bone fracture, and necrosis, the TBX model has pleiotropic effects on physiology and immunology that make it uniquely valuable as a screening tool for the evaluation of novel therapeutics against trauma-induced SIRS/MODS.
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Affiliation(s)
- Kariana E Rios
- Wound Infections Department, Bacterial Diseases Branch, Center for Infectious Diseases Research, Walter Reed Army Institute of Research, Silver Spring, MD 20910, USA
- Oak Ridge Institute for Science and Education, Oak Ridge, TN 37830, USA
| | - Yonas Alamneh
- Wound Infections Department, Bacterial Diseases Branch, Center for Infectious Diseases Research, Walter Reed Army Institute of Research, Silver Spring, MD 20910, USA
| | - Lacie M Werner
- Wound Infections Department, Bacterial Diseases Branch, Center for Infectious Diseases Research, Walter Reed Army Institute of Research, Silver Spring, MD 20910, USA
| | - Clara Leung
- Wound Infections Department, Bacterial Diseases Branch, Center for Infectious Diseases Research, Walter Reed Army Institute of Research, Silver Spring, MD 20910, USA
| | - Radmila Pavlovic
- Wound Infections Department, Bacterial Diseases Branch, Center for Infectious Diseases Research, Walter Reed Army Institute of Research, Silver Spring, MD 20910, USA
| | - Rania Abu-Taleb
- Wound Infections Department, Bacterial Diseases Branch, Center for Infectious Diseases Research, Walter Reed Army Institute of Research, Silver Spring, MD 20910, USA
| | - Rex J R S Thanapaul
- Wound Infections Department, Bacterial Diseases Branch, Center for Infectious Diseases Research, Walter Reed Army Institute of Research, Silver Spring, MD 20910, USA
- NRC Research Associateship Programs, National Academies of Sciences, Engineering, and Medicine, Washington, DC 20001, USA
| | - Sunjoo Lee
- Wound Infections Department, Bacterial Diseases Branch, Center for Infectious Diseases Research, Walter Reed Army Institute of Research, Silver Spring, MD 20910, USA
| | - Dawn Hull
- Wound Infections Department, Bacterial Diseases Branch, Center for Infectious Diseases Research, Walter Reed Army Institute of Research, Silver Spring, MD 20910, USA
| | - Christine Czintos
- Wound Infections Department, Bacterial Diseases Branch, Center for Infectious Diseases Research, Walter Reed Army Institute of Research, Silver Spring, MD 20910, USA
- Oak Ridge Institute for Science and Education, Oak Ridge, TN 37830, USA
| | - Wanwen Su
- Wound Infections Department, Bacterial Diseases Branch, Center for Infectious Diseases Research, Walter Reed Army Institute of Research, Silver Spring, MD 20910, USA
| | - Derese Getnet
- Wound Infections Department, Bacterial Diseases Branch, Center for Infectious Diseases Research, Walter Reed Army Institute of Research, Silver Spring, MD 20910, USA
| | - Vlado Antonic
- Wound Infections Department, Bacterial Diseases Branch, Center for Infectious Diseases Research, Walter Reed Army Institute of Research, Silver Spring, MD 20910, USA
| | - Alexander G Bobrov
- Wound Infections Department, Bacterial Diseases Branch, Center for Infectious Diseases Research, Walter Reed Army Institute of Research, Silver Spring, MD 20910, USA
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Zhuge Y, Ding C, Gong X, Hu D, Zhu J, Wang C. Development and evaluation of two different double-antibody sandwich ELISAs for detecting severe fever with thrombocytopenia syndrome virus infection. Jpn J Infect Dis 2021; 75:49-55. [PMID: 34193660 DOI: 10.7883/yoken.jjid.2020.1109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Severe fever with thrombocytopenia syndrome virus (SFTSV) is a newly emerging tick-borne virus with a case fatality rate between 12% and 50%. Currently, effective vaccines or antiviral drugs are not available, and a diagnostic method for detecting SFTSV is urgently needed. The monoclonal (MAb) and polyclonal antibodies (PAb) against SFTSV were prepared by immunizing animals with SFTSV nucleocapsid protein (NP), and using both monoclonal and polyclonal antibodies as capture antibodies against NP, we developed two different double-antibody sandwich enzyme-linked immunosorbent assays (DAS-ELISAs) for detecting the NP of SFTSV. Both methods were applicable for the diagnosis of SFTSV-infected patients, as confirmed by quantitative polymerase chain reaction. Furthermore, the sensitivity and specificity of two assays for diagnosing SFTS were both 100%, and had no reaction to recombinant Dabieshan NP or recombinant Dengue virus NS1 subtype 1 and 2 proteins. In addition, two standard curves were established for quantitative detection of the NP, and the monoclonal antibody-based ELISA (MAb-based ELISA) test had a lower limit of detection than the polyclonal-based ELISA (PAb-based ELISA) test. Therefore, the MAb-based ELISA could be employed for detecting SFTSV in a convenient and effective way.
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Affiliation(s)
- Yaoyao Zhuge
- Huadong Medical Institute of Biotechniques, China
| | - Chenxi Ding
- Huadong Medical Institute of Biotechniques, China
| | - Xiufang Gong
- Huadong Medical Institute of Biotechniques, China
| | - Dan Hu
- Huadong Medical Institute of Biotechniques, China
| | - Jin Zhu
- Huadong Medical Institute of Biotechniques, China
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Sztechman D, Żera T, Czarzasta K, Wojciechowska M, Szczepańska-Sadowska E, Cudnoch-Jędrzejewska A. Transthoracic echocardiography: from guidelines for humans to cardiac ultrasound of the heart in rats. Physiol Meas 2020; 41:10TR02. [PMID: 33164918 DOI: 10.1088/1361-6579/abb3a3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Ultrasound examination of the heart is a cornerstone of clinical evaluation of patients with established or suspected cardiovascular conditions. Advancements in ultrasound imaging technology have brought transthoracic echocardiography to preclinical murine models of cardiovascular diseases. The translational potential of cardiac ultrasound is critically important in rat models of myocardial infarction and ischemia-reperfusion injury, congestive heart failure, arterial hypertension, cardiac hypertrophy, pulmonary hypertension, right heart failure, Takotsubo cardiomyopathy, hypertrophic and dilated cardiomyopathies, developmental disorders, and metabolic syndrome. Modern echocardiographic machines capable of high-frame-rate image acquisition and fitted with high-frequency transducers allow for cardiac ultrasound in rats that yields most of the echocardiographic measurements and indices recommended by international guidelines for cardiac ultrasound in human patients. Among them are dimensions of cardiac chambers and walls, indices of systolic and diastolic cardiac function, and valvular function. In addition, measurements of cardiac dimensions and ejection fraction can be significantly improved by intravenous administration of ultrasound enhancing agents (UEAs). In this article we discuss echocardiography in rats, describe a technique for minimally invasive intravenous administration of UEAs via the saphenous vein and present a step-by-step approach to cardiac ultrasound in rats.
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Affiliation(s)
- Dorota Sztechman
- Department of Experimental and Clinical Physiology, Laboratory of Centre for Preclinical Research, Medical University of Warsaw, Banacha 1B, 02-097 Warsaw, Poland
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Quadri JA, Sarwar S, Pinky, Kar P, Singh S, Mallick SR, Arava S, Nag TC, Roy TS, Shariff A. Fluoride induced tissue hypercalcemia, IL-17 mediated inflammation and apoptosis lead to cardiomyopathy: Ultrastructural and biochemical findings. Toxicology 2018; 406-407:44-57. [PMID: 29800585 DOI: 10.1016/j.tox.2018.05.012] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Revised: 05/14/2018] [Accepted: 05/18/2018] [Indexed: 02/09/2023]
Abstract
An increased prevalence of cardiac complications has been observed in residents of fluorosis endemic areas chronically exposed to fluoride. Fluoride induces soft tissue injury due to oxidative stress, lipid peroxidation (LPO) and mitochondriopathy. It was hypothesized that chronic fluoride exposure induces apoptosis in cardiomyocytes due to inflammation, lysis of extra cellular matrix and altered calcium metabolism. This study was planned to evaluate the effects of chronic fluoride exposure and the mechanism of action in the cardiac muscle. Fifteen week old male Wistar rats were administered a human equivalent dose of fluoride (50 and 100 ppm ad-libitum, HED = 5 & 10 ppm in human) for 75-days. After 75-days of fluoride exposure, the animals were euthanized and fluoride, oxidative stress (SOD, GPX, Catalase activities) and LPO were measured. Histopathological and ultrastructural pathological examinations were conducted on the cardiac tissues using light, atomic force and electron microscopies. The cardiac tissues were also assessed for apoptosis (TUNEL/Caspase assays), and tissue calcium levels (Alizarin-assay and SEM-EDX). Tissue inflammation and expression of IL-17, MMP-9, Caspase-3 and Bcl-2 were evaluated. In the fluoride exposed groups, a significant (≤0.05) increase in levels of oxidative stress, LPO and apoptosis were observed. The IL-17, MMP-9 and Caspase-3 were significantly (≤0.05) higher in the cardiac muscle after chronic fluoride exposure. The fluoride seems to have induced inflammation in the cardiac tissues, as well as an increase in tissue calcium (≤0.05). There was significant damage to cardiac muscle fibres including, thinning, distortion and neo-vasculogenesis following chronic fluoride exposure. Mitochondriopathy, lysis of ground substance, oedema, and hyper-vacuolation was seen in fluoride treated groups. Remarkable levels of distortion and bending in Z band were observed under the AFM. Many of these observed changes mimic those occurring in cardiomegaly, cardiac hypertrophy and cardiomyopathies.
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Affiliation(s)
| | - Saba Sarwar
- Department of Anatomy, AIIMS, New Delhi, India
| | - Pinky
- Department of Anatomy, AIIMS, New Delhi, India
| | - Parmita Kar
- Department of Endocrinology and Metabolism, AIIMS, New Delhi, India
| | - Seema Singh
- Department of Anatomy, AIIMS, New Delhi, India
| | | | | | | | | | - A Shariff
- Department of Anatomy, AIIMS, New Delhi, India
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Li Q, Shi L, Lu G, Yu HL, Yeung FK, Wong NK, Sun L, Liu K, Yew D, Pan F, Wang DF, Sham PC. Chronic Ketamine Exposure Causes White Matter Microstructural Abnormalities in Adolescent Cynomolgus Monkeys. Front Neurosci 2017; 11:285. [PMID: 28579941 PMCID: PMC5437169 DOI: 10.3389/fnins.2017.00285] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2017] [Accepted: 05/02/2017] [Indexed: 01/05/2023] Open
Abstract
Acute and repeated exposures to ketamine mimic aspects of positive, negative, and cognitive symptoms of schizophrenia in humans. Recent studies by our group and others have shown that chronicity of ketamine use may be a key element for establishing a more valid model of cognitive symptoms of schizophrenia. However, current understanding on the long-term consequences of ketamine exposure on brain circuits has remained incomplete, particularly with regard to microstructural changes of white matter tracts that underpin the neuropathology of schizophrenia. Thus, the present study aimed to expand on previous investigations by examining causal effects of repeated ketamine exposure on white matter integrity in a non-human primate model. Ketamine or saline (control) was administered intravenously for 3 months to male adolescent cynomolgus monkeys (n = 5/group). Diffusion tensor imaging (DTI) experiments were performed and tract-based spatial statistics (TBSS) was used for data analysis. Fractional anisotropy (FA) was quantified across the whole brain. Profoundly reduced FA on the right side of sagittal striatum, posterior thalamic radiation (PTR), retrolenticular limb of the internal capsule (RLIC) and superior longitudinal fasciculus (SLF), and on the left side of PTR, middle temporal gyrus and inferior frontal gyrus were observed in the ketamine group compared to controls. Diminished white matter integrity found in either fronto-thalamo-temporal or striato-thalamic connections with tracts including the SLF, PTR, and RLIC lends support to similar findings from DTI studies on schizophrenia in humans. This study suggests that chronic ketamine exposure is a useful pharmacological paradigm that might provide translational insights into the pathophysiology and treatment of schizophrenia.
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Affiliation(s)
- Qi Li
- Department of Psychiatry, The University of Hong KongHong Kong, Hong Kong.,State Key Laboratory for Cognitive and Brain Sciences, The University of Hong KongHong Kong, Hong Kong.,The University of Hong Kong Shenzhen Institute of Research and Innovation (HKU-SIRI), The University of Hong KongHong Kong, Hong Kong
| | - Lin Shi
- Department of Medicine and Therapeutics, Chinese University of Hong KongHong Kong, Hong Kong.,Chow Yuk Ho Center of Innovative Technology for Medicine, Chinese University of Hong KongHong Kong, Hong Kong
| | - Gang Lu
- School of Biomedical Sciences, Chinese University of Hong KongHong Kong, Hong Kong
| | - Hong-Luan Yu
- Department of Psychology, Qilu Hospital of Shandong UniversityJinan, China
| | - Fu-Ki Yeung
- Research Center for Medical Image Computing, Department of Imaging and Interventional Radiology, Chinese University of Hong KongHong Kong, Hong Kong
| | - Nai-Kei Wong
- Chemical Biology Laboratory for Infectious Diseases, Shenzhen Institute of Hepatology, The Third People's Hospital of ShenzhenShenzhen, China
| | - Lin Sun
- Department of Psychology, Weifang Medical UniversityWeifang, China
| | - Kai Liu
- Research Center for Medical Image Computing, Department of Imaging and Interventional Radiology, Chinese University of Hong KongHong Kong, Hong Kong
| | - David Yew
- School of Chinese Medicine, Chinese University of Hong KongHong Kong, Hong Kong
| | - Fang Pan
- Department of Medical Psychology, Shandong University School of MedicineJinan, China
| | - De-Feng Wang
- Research Center for Medical Image Computing, Department of Imaging and Interventional Radiology, Chinese University of Hong KongHong Kong, Hong Kong
| | - Pak C Sham
- Department of Psychiatry, The University of Hong KongHong Kong, Hong Kong.,State Key Laboratory for Cognitive and Brain Sciences, The University of Hong KongHong Kong, Hong Kong.,Genome Research Centre, The University of Hong KongHong Kong, Hong Kong
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Mancini F, Nannarone S, Buratta S, Ferrara G, Stabile AM, Vuerich M, Santinelli I, Pistilli A, Chiaradia E. Effects of xylazine and dexmedetomidine on equine articular chondrocytes in vitro. Vet Anaesth Analg 2017; 44:295-308. [DOI: 10.1016/j.vaa.2016.04.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2015] [Revised: 03/23/2016] [Accepted: 04/08/2016] [Indexed: 11/27/2022]
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Yu Y, Li X, Liu L, Chai J, Haijun Z, Chu W, Yin H, Ma L, Duan H, Xiao M. miR-628 Promotes Burn-Induced Skeletal Muscle Atrophy via Targeting IRS1. Int J Biol Sci 2016; 12:1213-1224. [PMID: 27766036 PMCID: PMC5069443 DOI: 10.7150/ijbs.15496] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2016] [Accepted: 08/08/2016] [Indexed: 12/25/2022] Open
Abstract
Skeletal muscle atrophy is a common clinical feature among patients with severe burns. Previous studies have shown that miRNAs play critical roles in the regulation of stress-induced skeletal muscle atrophy. Our previous study showed that burn-induced skeletal muscle atrophy is mediated by miR-628. In this study, compared with sham rats, rats subjected to burn injury exhibited skeletal muscle atrophy, as well as significantly decreased insulin receptor substrate 1 (IRS1) protein expression and significantly increased skeletal muscle cell apoptosis. An miRNA array showed that the levels of miR-628, a potential regulator of IRS1 protein translation, were also clearly elevated. Second, L6 myocyte cell apoptosis increased after induction of miR-628 expression, and IRS1 and p-Akt protein expression decreased significantly. Expression of the cell apoptosis-related proteins FoxO3a and cleaved caspase 3 also increased after induction of miR-628 expression. Finally, forced miR-628 expression in normal rats resulted in increased cell apoptosis and skeletal muscle atrophy, as well as changes in IRS1/Akt/FoxO3a signaling pathway activity consistent with the changes in protein expression described above. Inhibiting cell apoptosis with Z-VAD-FMK resulted in alleviation of burn-induced skeletal muscle atrophy. In general, our results indicate that miR-628 mediates burn-induced skeletal muscle atrophy by regulating the IRS1/Akt/FoxO3a signaling pathway.
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Affiliation(s)
- Yonghui Yu
- Department of Burn & Plastic Surgery, the First Affiliated Hospital of PLA General Hospital, Beijing, 100048 China
| | - Xiao Li
- Department of Burn & Plastic Surgery, the First Affiliated Hospital of PLA General Hospital, Beijing, 100048 China
| | - Lingying Liu
- Department of Burn & Plastic Surgery, the First Affiliated Hospital of PLA General Hospital, Beijing, 100048 China
| | - Jiake Chai
- Department of Burn & Plastic Surgery, the First Affiliated Hospital of PLA General Hospital, Beijing, 100048 China
| | - Zhang Haijun
- Department of Burn & Plastic Surgery, the First Affiliated Hospital of PLA General Hospital, Beijing, 100048 China
| | - Wanli Chu
- Department of Burn & Plastic Surgery, the First Affiliated Hospital of PLA General Hospital, Beijing, 100048 China
| | - Huinan Yin
- Department of Burn & Plastic Surgery, the First Affiliated Hospital of PLA General Hospital, Beijing, 100048 China
| | - Li Ma
- Department of Burn & Plastic Surgery, the First Affiliated Hospital of PLA General Hospital, Beijing, 100048 China
| | - Hongjie Duan
- Department of Burn & Plastic Surgery, the First Affiliated Hospital of PLA General Hospital, Beijing, 100048 China
| | - Mengjing Xiao
- Department of Burn & Plastic Surgery, the First Affiliated Hospital of PLA General Hospital, Beijing, 100048 China
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Shang HS, Wu YN, Liao CH, Chiueh TS, Lin YF, Chiang HS. Long-term administration of ketamine induces erectile dysfunction by decreasing neuronal nitric oxide synthase on cavernous nerve and increasing corporal smooth muscle cell apoptosis in rats. Oncotarget 2016; 8:73670-73683. [PMID: 29088735 PMCID: PMC5650290 DOI: 10.18632/oncotarget.10727] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2015] [Accepted: 06/01/2016] [Indexed: 11/28/2022] Open
Abstract
We investigated and evaluated the mechanisms of erectile dysfunction (ED) in a rat model of long-term ketamine administration. Adult male Sprague-Dawley rats (n = 32) were divided into four groups: namely the control group receiving intraperitoneal injection of saline, 1-month, 2-month and 3-month groups receiving daily intraperitoneal injection of ketamine (100 mg/kg/day) for 1, 2, and 3 month respectively. After treatment, animals underwent an erectile response protocol to assess intracavernosal pressure (ICP). Smooth muscle content was evaluated. Neuronal nitric oxide synthase (nNOS), inducible nitric oxide synthase (iNOS) and endothelial nitric oxide synthase (eNOS) expression were assessed using immunostaining assay. Ketamine-induced apoptosis was analyzed using TUNEL assay. Long-term ketamine administration caused significantly decreased erectile responses as measured by ICP. Smooth muscle content was significantly decreased in the ketamine-treated rats for 3 months. In the erectile tissue, ketamine administration significantly reduced nNOS expression and increased iNOS content compared with controls, whereas eNOS expression was not altered. Ketamine induced apoptosis in corpus cavernosum. The present study demonstrates that long-term ketamine administration led to erectile dysfunction in rat. The molecular mechanisms of ketamine-induced ED involved the increased apoptosis and up-regulated iNOS expression incorporating with loss of corporal smooth muscle content and reduced nNOS expression in cavernous nerve.
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Affiliation(s)
- Hung-Sheng Shang
- Graduate Institute of Clinical of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan.,Division of Clinical Pathology, Department of Pathology, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Yi-No Wu
- Graduate Institute of Basic Medicine, Fu Jen Catholic University, New Taipei City, Taiwan
| | - Chun-Hou Liao
- Division of Urology, Department of Surgery, Cardinal Tien Hospital, Taipei City, Taiwan.,College of Medicine, Fu Jen Catholic University, Taipei City, Taiwan
| | - Tzong-Shi Chiueh
- Division of Clinical Pathology, Department of Pathology, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Yuh-Feng Lin
- Graduate Institute of Clinical of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan.,Division of Nephrology, Department of Medicine, Shuang Ho Hospital, School of Medicine, College of Medicine, Taipei Medical University, New Taipei City, Taiwan.,Division of Nephrology, Department of Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Han-Sun Chiang
- Graduate Institute of Basic Medicine, Fu Jen Catholic University, New Taipei City, Taiwan.,Division of Urology, Department of Surgery, Cardinal Tien Hospital, Taipei City, Taiwan.,Department of Urology, Taipei Medical University Hospital, Taipei, Taiwan
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Lončar-Turukalo T, Vasić M, Tasić T, Mijatović G, Glumac S, Bajić D, Japunžić-Žigon N. Heart rate dynamics in doxorubicin-induced cardiomyopathy. Physiol Meas 2015; 36:727-39. [PMID: 25798626 DOI: 10.1088/0967-3334/36/4/727] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
The clinical use of doxorubicin, an effective chemotherapeutic is hampered by the development of irreversible cardiotoxicity. Here we test time-frequency analysis of heart rate (HR) variability (HRV) for early detection of doxorubicin-induced cardiotoxicity. Experiments were conducted in adult male Wistar rats treated for 15 days with doxorubicin (DOXO, total dose 15 mg kg(-1), i.p.) or saline (CONT). DOXO rats exhibited cardiotoxicity confirmed by histological examination without developing heart failure as estimated by echocardiography. However, HR variability increase reflected subtle microscopic changes of cardiac toxicity in DOXO rats. The results recommend time-frequency analysis of HRV for early detection of doxorubicin-induced cardiomyopathy.
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