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Liu Y, Yu M, Chen L, Liu J, Li X, Zhang C, Xiang X, Li X, Lv Q. Systemic Review of Animal Models Used in the Study of Crush Syndrome. Shock 2022; 57:469-478. [PMID: 35066515 DOI: 10.1097/shk.0000000000001911] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
ABSTRACT Crush syndrome (CS), also known as traumatic rhabdomyolysis, is the leading cause of death following extrication from structural collapse due to earthquakes. Due to the unfeasibility of human studies, animal models are used to study crush syndrome pathophysiology, including biochemistry and treatment regimes. The aim of this systematic literature review was to identify the differences and benefits of various animal models used in the study of CS and provide valuable information for design of future research. A systematic search was conducted in two methods: with the filters "(crush syndrome) AND (crush muscle injury)" and with the keywords "(crush syndrome) AND (animal model)" covering all articles in the PubMed databases. The search generated 378 articles. After screening abstracts, 91 articles were retrieved and read, then 11 repeated articles were removed and 2 reference papers were included. We finally reviewed 82 original articles. There appear to be two primary methods employed for inducing crush syndrome in animal models, which are chemically induced injury and physically induced injury. Chemical method mainly includes intramuscular (IM) injection of tissue extract solution and IM injection of 50% glycerine. Physical method can be classified into invasive and non-invasive physical compression by elasticated material, inflatable band and heavy load. Various species of animals have been used to study CS, including mice (13.4%), rats (68.3%), rabbits (11.0%), canines (4.9%), goats (1.2%), and pigs (1.2%). Small animals are suitable for researches exploring the mechanism of disease or drug efficacy while large animals can work better with clinical application-related researches. In regard to the choice of modeling method, compressing the certain muscle of animals by heavy things is superior to others to cause systemic trauma-related rhabdomyolysis signs. In addition, due to the significant burden of crush injuries on animals, further attention shall be paid to the selection of the most suitable anesthetics and appropriate analgesics.
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Affiliation(s)
- Yahua Liu
- Emergency Department, Chinese PLA General Hospital (The Third Center), Beijing, China
- Beijing Key Laboratory of Disaster Rescue Medicine, Beijing, China
| | - Mengyang Yu
- General Medicine Department, Chinese PLA General Hospital (The Third Center), Beijing, China
| | - Li Chen
- General Medicine Department, Chinese PLA general Hospital (The First Center), Beijing, China
| | - Jing Liu
- Pathology Department, Chinese PLA General Hospital (The Third Center), Beijing, China
| | - Xin Li
- Emergency Department, Chinese PLA General Hospital (The Third Center), Beijing, China
| | - Chengying Zhang
- General Medicine Department, Chinese PLA General Hospital (The Third Center), Beijing, China
| | - Xueyuan Xiang
- Urology, Chinese PLA General Hospital (The Third Center), Beijing, China
| | - Xiaoxue Li
- Beijing Key Laboratory of Disaster Rescue Medicine, Beijing, China
- Chinese PLA General Hospital (Innovative Medicine Division), Beijing, China
| | - Qi Lv
- Institute of Disaster Medicine, Tianjin University, Tianjin, China
- Tianjin Key Laboratory of Disaster Medicine Technology, Tianjin, China
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Yao S, Zhang W, Ma J, Wang J. Effect of tourniquet application on cement penetration in primary total knee arthroplasty: a meta-analysis. ARTHROPLASTY 2021; 3:29. [PMID: 35236479 PMCID: PMC8796394 DOI: 10.1186/s42836-021-00083-7] [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: 02/09/2021] [Accepted: 06/16/2021] [Indexed: 11/27/2022] Open
Abstract
Background Tourniquet application is expected to improve surgery exposure and cementation process in total knee arthroplasty (TKA) but its effectiveness remains controversial and needs to be further explored. The aim of this meta-analysis was to assess the effect of tourniquet in primary TKA. The hypothesis is that the tourniquet application affects the cement penetration in TKA. Methods A search was conducted in PubMed, Embase, and the Cochrane Library for the potentially eligible articles. Two independent researchers reviewed the articles retrieved against the pre-designed inclusion and exclusion criteria. In primary TKA, cement penetration was assessed, and the data between the tourniquet-assisted and non-tourniquet-assisted TKAs were compared. Statistical significance was set at P < 0.05. Results A total of 4 randomized controlled trials and 3 non-randomized controlled trials (involving 675 patients) were included. There was no significant difference between the tourniquet-assisted and non-tourniquet-assisted TKAs in terms of cement penetration (P > 0.05). There were no significant differences in the total surgical time, blood loss, blood transfusion, the Knee Society Score, and the visual analogue scale (VAS) between the two kinds of procedures (P > 0.05). Conclusions Tourniquet application may not affect cement penetration in primary TKA and may not help reduce blood loss, ease knee pain or improve the knee function. A surgeon may choose to use a tourniquet or not according to his or her own preference. Level of Evidence Level Ib, meta-analysis.
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Affiliation(s)
- Shuxin Yao
- Department of Orthopedics Honghui Hospital, Xi'An Jiaotong University , No.555 East Youyi Road, Shanxi, Xi'an, China
| | - Weijie Zhang
- Department of Orthopedics Honghui Hospital, Xi'An Jiaotong University , No.555 East Youyi Road, Shanxi, Xi'an, China
| | - Jianbing Ma
- Department of Orthopedics Honghui Hospital, Xi'An Jiaotong University , No.555 East Youyi Road, Shanxi, Xi'an, China
| | - Jianpeng Wang
- Department of Orthopedics Honghui Hospital, Xi'An Jiaotong University , No.555 East Youyi Road, Shanxi, Xi'an, China.
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Li N, Wang X, Wang P, Fan H, Hou S, Gong Y. Emerging medical therapies in crush syndrome - progress report from basic sciences and potential future avenues. Ren Fail 2021; 42:656-666. [PMID: 32662306 PMCID: PMC7470165 DOI: 10.1080/0886022x.2020.1792928] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
Crush injury is a disease that is commonly found in victims of earthquakes, debris flows, mine disasters, explosions, terrorist attacks, local wars, and other accidents. The complications that arise due to the crush injury inflicted on victims give rise to crush syndrome (CS). If not treated in time, the mortality rate of CS is very high. The most important measure that can be taken to reduce mortality in such situations is to immediately start treatment. However, the traditional treatment methods such as fluid resuscitation, diuresis, and hemodialysis are not feasible enough to be carried out at the disaster scene. So there is a need for developing new treatments that are efficient and convenient. Because it is difficult to diagnose in the disaster area and reach the treatment equipment and treat on time. It has become a new research needs to be directed into identifying new medical treatment targets and methods using the etiology and pathophysiological mechanisms of CS. In recent years, a large number of new anti-oxidant and anti-inflammatory drug therapies have been shown to be highly efficacious in CS rat/mouse models. Some of them are expected to become specific drugs for the emergency treatment of a large number of patients who may develop CS in the aftermath of earthquakes, wars, and other disasters in the future. Hence, we have reviewed the latest research on the medical therapy of CS as a source for anyone wishing to pursue research in this direction.
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Affiliation(s)
- Ning Li
- Institute of Disaster Medicine, Tianjin University, Tianjin, China.,Tianjin Key Laboratory of Disaster Medicine Technology, Tianjin, China
| | - Xinyue Wang
- Institute of Disaster Medicine, Tianjin University, Tianjin, China.,Tianjin Key Laboratory of Disaster Medicine Technology, Tianjin, China
| | - Pengtao Wang
- Tianjin Key Laboratory of Disaster Medicine Technology, Tianjin, China.,General Hospital of Tianjin Medical University, Tianjin, China
| | - Haojun Fan
- Institute of Disaster Medicine, Tianjin University, Tianjin, China.,Tianjin Key Laboratory of Disaster Medicine Technology, Tianjin, China
| | - Shike Hou
- Institute of Disaster Medicine, Tianjin University, Tianjin, China.,Tianjin Key Laboratory of Disaster Medicine Technology, Tianjin, China
| | - Yanhua Gong
- Institute of Disaster Medicine, Tianjin University, Tianjin, China.,Tianjin Key Laboratory of Disaster Medicine Technology, Tianjin, China
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Kapil V, Khambata RS, Jones DA, Rathod K, Primus C, Massimo G, Fukuto JM, Ahluwalia A. The Noncanonical Pathway for In Vivo Nitric Oxide Generation: The Nitrate-Nitrite-Nitric Oxide Pathway. Pharmacol Rev 2020; 72:692-766. [DOI: 10.1124/pr.120.019240] [Citation(s) in RCA: 69] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
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β1-Blocker improves survival and ventricular remodelling in rats with lethal crush injury. Eur J Trauma Emerg Surg 2020; 48:455-470. [PMID: 32488449 DOI: 10.1007/s00068-020-01408-y] [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: 01/06/2020] [Accepted: 05/21/2020] [Indexed: 10/24/2022]
Abstract
BACKGROUND Crush injury/crush syndrome (CI/CS) is the second most common cause of death during earthquakes. Most studies of CI/CS have mainly focused on kidney injury after decompression. Few studies have focused on myocardial injury caused by crush injury and its potential mechanisms. METHODS We first verified cardiomyocyte injury during compression in rats with a crush injury. The survival rate, electrocardiographic results, histological results, catecholamine changes and cardiac β1-AR expression were evaluated. Next, we explored the effects of pretreatment with a selective β1-blocker (bisoprolol) with or without fluid resuscitation on rats with a crush injury. In addition to evaluating the survival rates, biochemical and histological analyses and echocardiographic measurements were also performed. RESULTS Reduced heart rates, elevated ST segments, and tall-peaked T waves were observed in the rats with a crush injury. The changes in the myocardial enzymes and pathological results demonstrated that myocardial damage occurred during compression in rats with a crush injury. The levels of the catecholamine norepinephrine in both the serum and myocardial tissue were elevated during compression. Pretreatment with a selective β1-blocker combined with fluid resuscitation significantly improved the survival rates of the rats with lethal crush injury. The myocardial enzymes and pathological results showed that the combined therapy decreased myocardial damage. The echocardiography measurements showed that the rats that received the combined therapy exhibited decreased left ventricular mass (LVM), left ventricular volume at end-systole (LVVs) and left ventricular internal diameter (LVID) compared with the rats with a crush injury. CONCLUSIONS Our findings demonstrated the presence of myocardial injury in the early stage of compression in rats with a crush injury. Pretreatment with a β1-blocker (bisoprolol) with fluid resuscitation significantly reduced mortality, decreased myocardial tissue damage, and improved ventricular remodelling in rats with a lethal crush injury.
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Cote DR, Fuentes E, Elsayes AH, Ross JJ, Quraishi SA. A "crush" course on rhabdomyolysis: risk stratification and clinical management update for the perioperative clinician. J Anesth 2020; 34:585-598. [PMID: 32424487 DOI: 10.1007/s00540-020-02792-w] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2019] [Accepted: 05/09/2020] [Indexed: 12/14/2022]
Abstract
Rhabdomyolysis, the release of myoglobin and other cellular breakdown products from necrotic muscle tissue, is seen in patients with crush injuries, drug overdose, malignant hyperthermia, muscular dystrophy, and with increasing frequency in obese patients undergoing routine procedures. For the perioperative clinician, managing the resultant shock, hyperkalemia, acidosis, and myoglobinuric acute kidney injury can present a significant challenge. Prompt recognition, hydration, and correction of metabolic disturbances may reduce or eliminate the need for long-term renal replacement therapy. This article reviews the pathophysiology and discusses key issues in the perioperative diagnosis, risk stratification, and management of rhabdomyolysis.
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Affiliation(s)
- Devan R Cote
- Department of Anesthesiology, Critical Care and Pain Medicine, Harvard Medical School, Massachusetts General Hospital, Boston, MA, USA
| | - Eva Fuentes
- Department of Surgery, Charles E. Schmidt College of Medicine, Florida Atlantic University, Boca Raton, FL, USA
| | - Ali H Elsayes
- Department of Anesthesiology and Perioperative Medicine, Tufts Medical Center, Tufts University School of Medicine, 800 Washington Street, Boston, MA, 02111, USA
| | - Jonathan J Ross
- Department of Anesthesiology, Baystate Medical Center, Tufts University School of Medicine, Springfield, MA, USA
| | - Sadeq A Quraishi
- Department of Anesthesiology and Perioperative Medicine, Tufts Medical Center, Tufts University School of Medicine, 800 Washington Street, Boston, MA, 02111, USA.
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Kadıoğlu E, Tekşen Y, Koçak C, Koçak FE. Beneficial effects of bardoxolone methyl, an Nrf2 activator, on crush-related acute kidney injury in rats. Eur J Trauma Emerg Surg 2019; 47:241-250. [PMID: 31471671 DOI: 10.1007/s00068-019-01216-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Accepted: 08/21/2019] [Indexed: 12/18/2022]
Abstract
PURPOSE The purpose of this study was to investigate the effects of bardoxolone methyl (BM), a nuclear factor erythroid 2-related factor 2 (Nrf2) activator, on acute kidney injury in a rat model of crush syndrome model. METHODS Sixty-four rats were separated equally into eight groups, sham (sterile saline ip), crush, crush + vehicle (DMSO ip), and crush + BM (10 mg/kg ip) (n = 8). All groups were also divided as 3 and 24 h after decompression. Crush injury was induced by 6 h of direct compression to both hind limbs of the rats with blocks weighing 3.6 kg on each side, followed by 3 and 24 h of decompression. Kidney injury molecule-1 (KIM-1), neutrophil gelatinase-associated lipocalin (NGAL), tumor necrotizing factor-α (TNF-α), transforming growth factor-β1 (TGF-β1) concentrations, tissue total oxidant status (TOS) and total antioxidant status (TAS) were measured in the kidneys. Serum creatine kinase (CK), blood urea nitrogen (BUN) and creatinine concentrations were also measured. Glomerular and tubular structures were examined histopathologically. Bcl-2 was measured using immunohistochemistry. Apoptosis was assessed using the TUNEL method. RESULTS BM treatment reduced KIM-1, NGAL, TNF-α, TGF-β1, TOS concentrations, and increased TAS concentrations in the kidneys 3 and 24 h after decompression. Serum CK, BUN and creatinine concentrations were also reduced with BM. BM treatment decreased apoptosis in crush-related AKI. The Nrf2 activator BM reversed the crush-induced changes in the experimental rats. CONCLUSION BM treatment prevented the progression of crush-related AKI in rats possibly through its cytoprotective effects of being an antioxidant, anti-inflammatory and anti-apoptotic agent.
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Affiliation(s)
- Emine Kadıoğlu
- Department of Emergency Medicine, Faculty of Medicine, Kütahya Health Sciences University, Evliya Çelebi Yerleşkesi, 43000, Kutahya, Turkey
| | - Yasemin Tekşen
- Department of Pharmacology, Faculty of Medicine, Kütahya Health Sciences University, Evliya Çelebi Yerleşkesi, 43000, Kutahya, Turkey.
| | - Cengiz Koçak
- Department of Pathology, Faculty of Medicine, Uşak University, Bir Eylül Kampüsü, 64000, Uşak, Turkey
| | - Fatma Emel Koçak
- Department of Biochemistry, Faculty of Medicine, Kütahya Health Sciences University, Evliya Çelebi Yerleşkesi, 43000, Kutahya, Turkey
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Kobayashi J, Murata I. Nitrite as a pharmacological intervention for the successful treatment of crush syndrome. Physiol Rep 2019; 6. [PMID: 29512311 PMCID: PMC5840435 DOI: 10.14814/phy2.13633] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2017] [Revised: 01/16/2018] [Accepted: 02/02/2018] [Indexed: 01/01/2023] Open
Abstract
Crush syndrome is characterized by ischemia/reperfusion injury (IRI). The protective effect of nitrite on experimentally induced IRI has been demonstrated in the heart, kidney, liver, and skeletal muscle. IRI in tissues and systemic organs occurs due to the massive generation of reactive oxygen species and subsequent systemic inflammation. Therefore, ischemic pre and postconditioning are performed in clinical practice. Intravenous administration of nitrite inhibits IRI through nitric oxide-mediated mechanisms. In this paper, we discuss the utility of nitrite as a pharmacological postconditioning agent in the treatment of crush syndrome.
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Affiliation(s)
- Jun Kobayashi
- Division of Pathophysiology, Department of Clinical Dietetics and Human Nutrition, Faculty of Pharmacy and Pharmaceutical Science, Josai University, Saitama, Japan
| | - Isamu Murata
- Division of Drug Safety Management, Faculty of Pharmacy and Pharmaceutical Science, Josai University, Saitama, Japan
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Tekşen Y, Kadıoğlu E, Koçak C, Koçak H. Effect of Hydrogen Sulfide on Kidney Injury in Rat Model of Crush Syndrome. J Surg Res 2018; 235:470-478. [PMID: 30691831 DOI: 10.1016/j.jss.2018.10.033] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2018] [Revised: 09/27/2018] [Accepted: 10/18/2018] [Indexed: 12/15/2022]
Abstract
BACKGROUND Acute kidney injury is the most serious complication of crush syndrome. Hydrogen sulfide (H2S) is an endogenously produced gaseous signaling molecule. It is involved in homeostatic functions, such as blood pressure control, apoptosis, oxidative stress, and inflammation. In this study, effects of H2S on kidney injury were investigated in a rat model of crush syndrome. METHODS Rats were divided into six groups (n = 8): Sham (steril saline ip), crush (sterile saline ip), crush + NaHS (sodium hydrosulfide, an H2S donor) (100 μmol/kg ip). All these groups were also separated as 3 and 24 h after decompression. Crush injury was induced by 6 h of direct compression to both hindlimbs of anesthetized rats with blocks weighing 3.6 kg each sides, followed by 3 or 24 h of decompression. Kidney injury molecule-1, neutrophil gelatinase-associated lipocalin, tumor-necrotizing factor-α, transforming growth factor-β, tissue total oxidant status, and total antioxidant status levels were measured in kidney homogenates 3 and 24 h after decompression. Serum creatine kinase, blood urea nitrogen, and creatinine levels were also measured. Apoptosis was assessed by TUNEL method. Bcl-2 was assessed by immunohistochemistry. Glomerular and tubular structures were also examined histopathologically. RESULTS NaHS reduced kidney injury molecule-1, neutrophil gelatinase-associated lipocalin, tumor-necrotizing factor-α, transforming growth factor-β, total oxidant status levels, and increased total antioxidant status levels in kidney 3 and 24 h after decompression. Serum urea, creatinine, and creatine kinase levels also reduced with NaHS. NaHS decreased renal damage and apoptosis in crush-related acute kidney injury. CONCLUSIONS These results suggest that H2S could reduce crush-related acute kidney injury via anti-inflammatory, antioxidant, and antiapoptotic effects.
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Affiliation(s)
- Yasemin Tekşen
- Department of Pharmacology, Faculty of Medicine, Dumlupınar University, Kütahya, Turkey.
| | - Emine Kadıoğlu
- Department of Emergency Medicine, Faculty of Medicine, Dumlupınar University, Kütahya, Turkey
| | - Cengiz Koçak
- Department of Pathology, Faculty of Medicine, Dumlupınar University, Kütahya, Turkey
| | - Havva Koçak
- Department of Biochemistry, Faculty of Medicine, Asst. Prof. Dumlupınar University, Kütahya, Turkey
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Systemic Inflammatory Response and Multiple Organ Dysfunctions Following Crush Injury: a New Experimental Model in Rabbits. Inflammation 2018; 41:240-248. [PMID: 29071515 DOI: 10.1007/s10753-017-0683-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
In this study, we aim to develop a new, reproducible crush injury (CI) model in rabbits. Anesthetized rabbits were compressed on both hind limbs using a special instrument for 6 h followed by 3 h of reperfusion. Blood samples and injured muscles were collected for biochemical analysis and morphological evaluation. Survival observation lasted for 72 h. Bilateral compressions with 10 kg/kg body weight (BW), but not with 5 kg/kg BW, reduced serious systemic impairment. Bilateral compressions with 10 kg/kg BW resulted in severe lactic acidosis; increased serum K+, creatine phosphokinase, aspartate transaminase, alanine transaminase, blood urea nitrogen, and creatinine levels; and a sharply decreased mean arterial blood pressure after compression release. Serious tissue edema and inflammation were observed in the damaged muscles. The mortality rates in compression groups were 20% (5 kg/kg BW) and 60% (10 kg/kg BW). There was a significant increase in plasma concentrations of TNF-α and IL-1β after compression. Plasma IL-1β levels returned to control levels at 6 h after compression release, whereas TNF-α peaked at 12 h following reperfusion. Furthermore, antiinflammatory cytokines, including IL-4 and IL-10, were also increased after compression, and these two cytokines peaked at 12 h after compression release. Our data suggested that bilateral compression with 10 kg/kg BW on rabbits' hind limbs is a reproducible CI model, and we also reported the CI-induced systemic inflammatory responses and changes of cytokines over time.
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Murata I, Kawanishi R, Inoue S, Iwata M, Kobayashi J, Inoue Y, Kanamoto I. A novel method to assess the severity and prognosis in crush syndrome by assessment of skin damage in hairless rats. Eur J Trauma Emerg Surg 2018; 45:1087-1095. [PMID: 30054668 DOI: 10.1007/s00068-018-0987-7] [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: 02/05/2018] [Accepted: 07/17/2018] [Indexed: 10/28/2022]
Abstract
PURPOSE Crush syndrome (CS), a serious medical condition characterised by damage to the muscle cells due to pressure, is associated with high mortality, even when patients receive fluid therapy during transit to the hospital or admission to the hospital. There is no standard triage approach for earthquake victims with crush injuries due to the scarcity of epidemiologic and quantitative data. We examined whether mortality can be predicted based on the severity of skin damage so that assess the severity and prognosis in crush syndrome by assessment of skin damage in hairless rats because we have previously observed that CS results in oedema and redness of the skin in rats. METHODS Anaesthetised rats were subjected to bilateral hind limb compression [1 kg (mild) and 2 kg (severe) loads] with a rubber tourniquet for 5 h. The rats were then randomly divided into three groups: sham, mild CS, and severe CS. RESULTS The mild and severe CS groups had mortality rates of 20 and 90%, respectively. The severe CS group demonstrated higher rates of hyperkalaemia, hypovolemic shock, acidosis, and inflammation. Skin damage was significantly worse in the severe CS group compared to the mild CS group. Skin damage showed good correlation with pathological severity. CONCLUSIONS Skin damage is a valid measure of transepidermal water loss and severity of CS. We suggest that these models may be useful to professionals who are not experienced in disaster management to identify earthquake victims at high risk of severe CS.
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Affiliation(s)
- Isamu Murata
- Laboratory of Drug Safety Management, Faculty of Pharmacy and Pharmaceutical Science, Josai University, Keyakidai 1-1, Sakado, Saitama, 350-0295, Japan.
| | - Ryota Kawanishi
- Laboratory of Drug Safety Management, Faculty of Pharmacy and Pharmaceutical Science, Josai University, Keyakidai 1-1, Sakado, Saitama, 350-0295, Japan
| | - Syo Inoue
- Laboratory of Drug Safety Management, Faculty of Pharmacy and Pharmaceutical Science, Josai University, Keyakidai 1-1, Sakado, Saitama, 350-0295, Japan
| | - Moeko Iwata
- Laboratory of Drug Safety Management, Faculty of Pharmacy and Pharmaceutical Science, Josai University, Keyakidai 1-1, Sakado, Saitama, 350-0295, Japan
| | - Jun Kobayashi
- Division of Pathophysiology, Department of Clinical Dietetics and Human Nutrition, Faculty of Pharmacy and Pharmaceutical Science, Josai University, Keyakidai 1-1, Sakado, 350-0295, Saitama, Japan
| | - Yutaka Inoue
- Laboratory of Drug Safety Management, Faculty of Pharmacy and Pharmaceutical Science, Josai University, Keyakidai 1-1, Sakado, Saitama, 350-0295, Japan
| | - Ikuo Kanamoto
- Laboratory of Drug Safety Management, Faculty of Pharmacy and Pharmaceutical Science, Josai University, Keyakidai 1-1, Sakado, Saitama, 350-0295, Japan
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Low-Dose Sodium Nitrite Fluid Resuscitation Prevents Lethality From Crush Syndrome by Improving Nitric Oxide Consumption and Preventing Myoglobin Cytotoxicity in Kidney in A Rat Model. Shock 2018; 48:112-118. [PMID: 27941593 DOI: 10.1097/shk.0000000000000817] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
OBJECTIVE Crush syndrome (CS) is a serious medical condition characterized by muscle cell damage resulting from pressure. CS has a high mortality, even when patients receive fluid therapy. We examined whether administration of NaNO2-containing fluid can improve survival in a rat model of CS. DESIGN The CS model was generated by subjecting anesthetized rats to bilateral hind limb compression with a rubber tourniquet for 5 h. Rats were then randomly divided into six groups: sham; CS with no treatment; CS with normal saline treatment; CS with normal saline + 25 mEq/L bicarbonate treatment; and CS with normal saline + 200 or 500 μmol/kg NaNO2. MEASUREMENTS AND MAIN RESULTS Blood and tissue samples were collected for histological and biochemical analyses at predetermined time points before and after reperfusion. Ischemic compression of rat hind limbs reduced nitrite content in the crushed muscle, and subsequent reperfusion resulted in reactive oxygen species-induced circulatory dysfunction and systemic inflammation. Rats treated with 200 μmol/kg NaNO2 showed increased nitric oxide (NO) levels, blood circulation, and neoangiogenesis, decreased generation of reactive oxygen species, and suppression of the inflammatory response, leading to complete recovery. CONCLUSIONS Treatment with 200 μmol/kg NaNO2 prevents muscle damage induced by ischemia reperfusion via the protective effects of NO and suppression of systemic inflammation, thereby increasing survival rates in CS.
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Acar D, Gülpembe M, Yıldız CG, Özdamar EN, Açıkgöz K, Çağlar A, Cander B. The reno-protective effects of atorvastatin in crush syndrome and rhabdomyolysis:is there a dilemma? Turk J Med Sci 2017; 47:1920-1924. [PMID: 29306258 DOI: 10.3906/sag-1610-48] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
Background/aim: We aim to determine the effects of low-dose atorvastatin treatment together with crush fluid resuscitation on renal functions and muscle enzyme levels in a rat model of crush syndrome. Materials and methods: The study involved female Wistar Albino rats weighing 250-300 g that were housed with free access to food and water. The crush model was obtained by compression. Rats were randomly divided into four groups: control (C) group, atorvastatin + crush fluid (ACF) group, crush fluid (CF) group, and hypertonic saline (%3) + mannitol + sodium bicarbonate (SM) group. Blood was obtained at 24, 48, and 72 h, and serum creatinine kinase, myoglobin, urea, creatinine, and lactate dehydrogenase levels were studied.Results: All parameters were statistically significantly higher in the control group than in the treatment groups at all hours. However, there was no statistically significant difference among treatment groups regarding any of the parameters.Conclusion: This is the first study determining the role of atorvastatin in the treatment of renal ischemia/reperfusion injury in a crush syndrome and rhabdomyolysis model setting. Larger studies with different atorvastatin doses are required to define the role of this drug in the treatment of renal ischemia/reperfusion injury during crush syndrome.
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Murata I, Abe Y, Yaginuma Y, Yodo K, Kamakari Y, Miyazaki Y, Baba D, Shinoda Y, Iwasaki T, Takahashi K, Kobayashi J, Inoue Y, Kanamoto I. Astragaloside-IV prevents acute kidney injury and inflammation by normalizing muscular mitochondrial function associated with a nitric oxide protective mechanism in crush syndrome rats. Ann Intensive Care 2017; 7:90. [PMID: 28871521 PMCID: PMC5583140 DOI: 10.1186/s13613-017-0313-2] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2017] [Accepted: 08/19/2017] [Indexed: 11/26/2022] Open
Abstract
Background Crush syndrome (CS) is a serious medical condition characterized by muscle cell damage resulting from decompression after compression (i.e., ischemia/reperfusion injury). A large number of CS patients develop cardiac failure, kidney dysfunction, and systemic inflammation, even when fluid therapy is administered. We evaluated whether the administration of astragaloside-IV (AS)-containing fluid improved survival by preventing kidney and muscular mitochondrial dysfunction in a rat model of CS. Results The CS model was generated by subjecting anesthetized rats to bilateral hind limb compression with a rubber tourniquet for 5 h. Rats were then randomly divided into four groups: (1) sham; (2) CS with no treatment; (3) CS with normal saline treatment; and (4) CS with normal saline + 10 mg/kg AS. AS-containing fluid improved kidney function by improving shock and metabolic acidosis in CS rats. In addition, there was a reduction in oxidative damage. The attenuation of hyperkalemia was significantly related to improving muscle injury via preventing mitochondrial dysfunction. Moreover, this mitochondria protection mechanism was related to the nitric oxide (NO) generated by activation of endothelial nitric oxide synthase, which provided an anti-oxidative and anti-inflammatory effect. Conclusions Treatment with AS-containing fluid led to a dramatic improvement in survival following CS because of direct and indirect anti-oxidative effects in the kidney, and improvements in mitochondrial dysfunction and inflammation owing to AS acting as an NO donor in injured muscle. Electronic supplementary material The online version of this article (doi:10.1186/s13613-017-0313-2) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Isamu Murata
- Laboratory of Drug Safety Management, Faculty of Pharmacy and Pharmaceutical Science, Josai University, Keyakidai 1-1, Sakado, Saitama, 350-0295, Japan.
| | - Yuji Abe
- Laboratory of Drug Safety Management, Faculty of Pharmacy and Pharmaceutical Science, Josai University, Keyakidai 1-1, Sakado, Saitama, 350-0295, Japan
| | - Yuka Yaginuma
- Laboratory of Drug Safety Management, Faculty of Pharmacy and Pharmaceutical Science, Josai University, Keyakidai 1-1, Sakado, Saitama, 350-0295, Japan
| | - Kayako Yodo
- Laboratory of Drug Safety Management, Faculty of Pharmacy and Pharmaceutical Science, Josai University, Keyakidai 1-1, Sakado, Saitama, 350-0295, Japan
| | - Yuka Kamakari
- Water and Food Inspection Group, Saitama Prefectural Institute of Public Health, Saitama, Japan
| | - Yurika Miyazaki
- Laboratory of Drug Safety Management, Faculty of Pharmacy and Pharmaceutical Science, Josai University, Keyakidai 1-1, Sakado, Saitama, 350-0295, Japan
| | - Daichi Baba
- Laboratory of Drug Safety Management, Faculty of Pharmacy and Pharmaceutical Science, Josai University, Keyakidai 1-1, Sakado, Saitama, 350-0295, Japan
| | - Yuko Shinoda
- Laboratory of Drug Safety Management, Faculty of Pharmacy and Pharmaceutical Science, Josai University, Keyakidai 1-1, Sakado, Saitama, 350-0295, Japan
| | - Toru Iwasaki
- Laboratory of Drug Safety Management, Faculty of Pharmacy and Pharmaceutical Science, Josai University, Keyakidai 1-1, Sakado, Saitama, 350-0295, Japan
| | - Kunihiko Takahashi
- Hygiene Inspection Section, Koshigaya City Public Health Center, Saitama, Japan
| | - Jun Kobayashi
- Division of Pathophysiology, Department of Clinical Dietetics and Human Nutrition, Faculty of Pharmaceutical Science, Josai University, Saitama, Japan
| | - Yutaka Inoue
- Laboratory of Drug Safety Management, Faculty of Pharmacy and Pharmaceutical Science, Josai University, Keyakidai 1-1, Sakado, Saitama, 350-0295, Japan
| | - Ikuo Kanamoto
- Laboratory of Drug Safety Management, Faculty of Pharmacy and Pharmaceutical Science, Josai University, Keyakidai 1-1, Sakado, Saitama, 350-0295, Japan
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15
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Cabrales P, Caroen S, Oronsky A, Carter C, Trepel J, Summers T, Reid T, Oronsky N, Lybeck M, Oronsky B. The macrophage stimulating anti-cancer agent, RRx-001, protects against ischemia-reperfusion injury. Expert Rev Hematol 2017; 10:575-582. [PMID: 28448172 DOI: 10.1080/17474086.2017.1324779] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
BACKGROUND RRx-001, a clinical macrophage-stimulating anti-cancer agent that also produces nitric oxide (NO) was studied in a model of ischemia-reperfusion injury. METHODS The production of NO is dependent on the oxygen tension because nitric oxide synthases convert l-arginine to NO and l-citrulline in the presence of O2. Since the P450 enzymes, which metabolize nitrate esters such as nitroglycerin are dependent on oxygen, the generation of 'exogenous' NO is also sensitive to alterations in tissue PO2. I/R injury was studied in a hamster chamber window, with compression of the periphery of the window for 1 h to induce ischemia. Animals received RRx-001 (5 mg/kg) 24 h before ischemia and sodium nitrite (10 nmols/kg) was supplemented 10 min after the start of reperfusion. Vessel diameter, blood flow, adherent leukocytes, and functional capillary density were assessed by intravital microscopy at 0.5, 2, and 24 h following the release of the ischemia. RESULTS The results demonstrated that, compared to control, RRx-001 preconditioning increased blood flow and functional capillary density, and preserved tissue viability in the absence of side effects over a sustained time period. CONCLUSION Thus, RRx-001 may serve as a long-lived protective agent during postsurgical restoration of flow and other ischemia-reperfusion associated conditions, increasing blood flow and functional capillary density as well as preserving tissue viability in the absence of side effects.
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Affiliation(s)
- Pedro Cabrales
- a Department of Bioengineering , University of California San Diego (UCSD) , La Jolla , CA , USA
| | | | | | - Corey Carter
- d Walter Reed Military Medical Center , Murtha Cancer Center , Bethesda , MD , USA
| | - Jane Trepel
- e Moores Cancer Center , University of California San Diego (UCSD) , La Jolla , CA , USA
| | - Thomas Summers
- d Walter Reed Military Medical Center , Murtha Cancer Center , Bethesda , MD , USA
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Murata I, Goto M, Komiya M, Motohashi R, Hirata M, Inoue Y, Kanamoto I. Early Therapeutic Intervention for Crush Syndrome: Characterization of Intramuscular Administration of Dexamethasone by Pharmacokinetic and Biochemical Parameters in Rats. Biol Pharm Bull 2017; 39:1424-31. [PMID: 27582323 DOI: 10.1248/bpb.b15-01034] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Crush syndrome (CS) is the systemic manifestation of muscle cell damage resulting from pressure and crushing. It is associated with a high mortality rate, even when patients are treated with conventional therapy. We demonstrated the utility of intramuscular administration of dexamethasone (DEX) in disaster medical care by using a model of CS to characterize the pharmacokinetics and biochemical parameters. We compared intravenous (IV) and intramuscular (IM) injection. The IM sites were the right anterior limb (AL), bilateral hind limbs (bHL), and unilateral hind limb (uHL). DEX (5.0 mg/kg) was administered in sham-operated (sham, S-IV, S-AL, S-bHL, S-uHL groups) and CS rats (control, C-IV, C-AL, C-bHL, C-uHL groups). The survival rate in the IM groups was lower than that in the C-IV group. Survival was highest in the C-AL group, followed by the C-uHL and C-bHL groups. The blood DEX concentration of the C-AL group was similar to that in the C-IV group. The C-bHL and C-uHL groups had decreased blood DEX concentrations. Moreover, inhibition of inflammation was related to these changes. Administration of DEX to non-injured muscle, as well as IV administration, increased the survival rate by modulating shock and inflammatory mediators, consequently suppressing myeloperoxidase activity and subsequent systemic inflammation, resulting in a complete recovery of rats from lethal CS. These results demonstrate that injection DEX into the non-injured muscle is a potentially effective early therapeutic intervention for CS that could easily be used in transport to the hospital.
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Affiliation(s)
- Isamu Murata
- Laboratory of Drug Safety Management, Faculty of Pharmaceutical Science, Josai University
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17
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de Lima Portella R, Lynn Bickta J, Shiva S. Nitrite Confers Preconditioning and Cytoprotection After Ischemia/Reperfusion Injury Through the Modulation of Mitochondrial Function. Antioxid Redox Signal 2015; 23:307-27. [PMID: 26094636 DOI: 10.1089/ars.2015.6260] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
SIGNIFICANCE Nitrite is now recognized as an intrinsic signaling molecule that mediates a number of biological processes. One of the most reproducible effects of nitrite is its ability to mediate cytoprotection after ischemia/reperfusion (I/R). This robust phenomenon has been reproduced by a number of investigators in varying animal models focusing on different target organs. Furthermore, nitrite's cytoprotective versatility is highlighted by its ability to mediate delayed preconditioning and remote conditioning in addition to acute protection. RECENT ADVANCES In the last 10 years, significant progress has been made in elucidating the mechanisms underlying nitrite-mediated ischemic tolerance. CRITICAL ISSUES The mitochondrion, which is essential to both the progression of I/R injury and the protection afforded by preconditioning, has emerged as a major subcellular target for nitrite. This review will outline the role of the mitochondrion in I/R injury and preconditioning, review the accumulated preclinical studies demonstrating nitrite-mediated cytoprotection, and finally focus on the known interactions of nitrite with mitochondria and their role in the mechanism of nitrite-mediated ischemic tolerance. FUTURE DIRECTIONS These studies set the stage for current clinical trials testing the efficacy of nitrite to prevent warm and cold I/R injury.
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Affiliation(s)
- Rafael de Lima Portella
- 1 Vascular Medicine Institute, University of Pittsburgh School of Medicine , Pittsburgh, Pennsylvania
| | - Janelle Lynn Bickta
- 1 Vascular Medicine Institute, University of Pittsburgh School of Medicine , Pittsburgh, Pennsylvania.,2 Department of Bioengineering, University of Pittsburgh School of Medicine , Pittsburgh, Pennsylvania
| | - Sruti Shiva
- 1 Vascular Medicine Institute, University of Pittsburgh School of Medicine , Pittsburgh, Pennsylvania.,3 Department of Pharmacology and Chemical Biology, University of Pittsburgh School of Medicine , Pittsburgh, Pennsylvania.,4 Center for Metabolism and Mitochondrial Medicine, University of Pittsburgh School of Medicine , Pittsburgh, Pennsylvania
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18
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Kobayashi J, Ohtake K, Uchida H. NO-Rich Diet for Lifestyle-Related Diseases. Nutrients 2015; 7:4911-37. [PMID: 26091235 PMCID: PMC4488823 DOI: 10.3390/nu7064911] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2015] [Revised: 06/08/2015] [Accepted: 06/09/2015] [Indexed: 02/07/2023] Open
Abstract
Decreased nitric oxide (NO) availability due to obesity and endothelial dysfunction might be causally related to the development of lifestyle-related diseases such as insulin resistance, ischemic heart disease, and hypertension. In such situations, instead of impaired NO synthase (NOS)-dependent NO generation, the entero-salivary nitrate-nitrite-NO pathway might serve as a backup system for NO generation by transmitting NO activities in the various molecular forms including NO and protein S-nitrosothiols. Recently accumulated evidence has demonstrated that dietary intake of fruits and vegetables rich in nitrate/nitrite is an inexpensive and easily-practicable way to prevent insulin resistance and vascular endothelial dysfunction by increasing the NO availability; a NO-rich diet may also prevent other lifestyle-related diseases, including osteoporosis, chronic obstructive pulmonary disease (COPD), and cancer. This review provides an overview of our current knowledge of NO generation through the entero-salivary pathway and discusses its safety and preventive effects on lifestyle-related diseases.
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Affiliation(s)
- Jun Kobayashi
- Division of Pathophysiology, Department of Clinical Dietetics and Human Nutrition, Faculty of Pharmaceutical Science, Josai University, Saitama 350-0295, Japan.
| | - Kazuo Ohtake
- Division of Pathophysiology, Department of Clinical Dietetics and Human Nutrition, Faculty of Pharmaceutical Science, Josai University, Saitama 350-0295, Japan.
| | - Hiroyuki Uchida
- Division of Pathophysiology, Department of Clinical Dietetics and Human Nutrition, Faculty of Pharmaceutical Science, Josai University, Saitama 350-0295, Japan.
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19
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Dyakova EY, Kapilevich LV, Shylko VG, Popov SV, Anfinogenova Y. Physical exercise associated with NO production: signaling pathways and significance in health and disease. Front Cell Dev Biol 2015; 3:19. [PMID: 25883934 PMCID: PMC4382985 DOI: 10.3389/fcell.2015.00019] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2014] [Accepted: 03/07/2015] [Indexed: 12/20/2022] Open
Abstract
Here we review available data on nitric oxide (NO)-mediated signaling in skeletal muscle during physical exercise. Nitric oxide modulates skeletal myocyte function, hormone regulation, and local microcirculation. Nitric oxide underlies the therapeutic effects of physical activity whereas the pharmacological modulators of NO-mediated signaling are the promising therapeutic agents in different diseases. Nitric oxide production increases in skeletal muscle in response to physical activity. This molecule can alter energy supply in skeletal muscle through hormonal modulation. Mitochondria in skeletal muscle tissue are highly abundant and play a pivotal role in metabolism. Considering NO a plausible regulator of mitochondrial biogenesis that directly affects cellular respiration, we discuss the mechanisms of NO-induced mitochondrial biogenesis in the skeletal muscle cells. We also review available data on myokines, the molecules that are expressed and released by the muscle fibers and exert autocrine, paracrine and/or endocrine effects. The article suggests the presence of putative interplay between NO-mediated signaling and myokines in skeletal muscle. Data demonstrate an important role of NO in various diseases and suggest that physical training may improve health of patients with diabetes, chronic heart failure, and even degenerative muscle diseases. We conclude that NO-associated signaling represents a promising target for the treatment of various diseases and for the achievement of better athletic performance.
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Affiliation(s)
- Elena Y Dyakova
- Department of Sporting Health Tourism, Physiology, and Medicine, National Research Tomsk State University Tomsk, Russia
| | - Leonid V Kapilevich
- Department of Sporting Health Tourism, Physiology, and Medicine, National Research Tomsk State University Tomsk, Russia ; Institute of Physics and Technology, National Research Tomsk Polytechnic University Tomsk, Russia
| | - Victor G Shylko
- Department of Sporting Health Tourism, Physiology, and Medicine, National Research Tomsk State University Tomsk, Russia
| | - Sergey V Popov
- Federal State Budgetary Scientific Institution "Research Institute for Cardiology," Tomsk, Russia
| | - Yana Anfinogenova
- Institute of Physics and Technology, National Research Tomsk Polytechnic University Tomsk, Russia ; Federal State Budgetary Scientific Institution "Research Institute for Cardiology," Tomsk, Russia
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20
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Rassaf T, Ferdinandy P, Schulz R. Nitrite in organ protection. Br J Pharmacol 2014; 171:1-11. [PMID: 23826831 DOI: 10.1111/bph.12291] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2013] [Revised: 06/09/2013] [Accepted: 06/21/2013] [Indexed: 12/15/2022] Open
Abstract
In the last decade, the nitrate-nitrite-nitric oxide pathway has emerged to therapeutical importance. Modulation of endogenous nitrate and nitrite levels with the subsequent S-nitros(yl)ation of the downstream signalling cascade open the way for novel cytoprotective strategies. In the following, we summarize the actual literature and give a short overview on the potential of nitrite in organ protection.
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Affiliation(s)
- Tienush Rassaf
- Department of Medicine, Division of Cardiology, Pulmonary and Vascular Medicine, University Hospital Düsseldorf, Düsseldorf, Germany
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21
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Sindler AL, Devan AE, Fleenor BS, Seals DR. Inorganic nitrite supplementation for healthy arterial aging. J Appl Physiol (1985) 2014; 116:463-77. [PMID: 24408999 PMCID: PMC3949212 DOI: 10.1152/japplphysiol.01100.2013] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2013] [Accepted: 01/03/2014] [Indexed: 12/12/2022] Open
Abstract
Aging is the major risk factor for cardiovascular diseases (CVD). This is attributable primarily to adverse changes in arteries, notably, increases in large elastic artery stiffness and endothelial dysfunction mediated by inadequate concentrations of the vascular-protective molecule, nitric oxide (NO), and higher levels of oxidative stress and inflammation. Inorganic nitrite is a promising precursor molecule for augmenting circulating and tissue NO bioavailability because it requires only a one-step reduction to NO. Nitrite also acts as an independent signaling molecule, exerting many of the effects previously attributed to NO. Results of recent studies indicate that nitrite may be effective in the treatment of vascular aging. In old mice, short-term oral sodium nitrite supplementation reduces aortic pulse wave velocity, the gold-standard measure of large elastic artery stiffness, and ameliorates endothelial dysfunction, as indicated by normalization of NO-mediated endothelium-dependent dilation. These improvements in age-related vascular dysfunction with nitrite are mediated by reductions in oxidative stress and inflammation, and may be linked to increases in mitochondrial biogenesis and health. Increasing nitrite levels via dietary intake of nitrate appears to have similarly beneficial effects in many of the same physiological and clinical settings. Several clinical trials are being performed to determine the broad therapeutic potential of increasing nitrite bioavailability on human health and disease, including studies related to vascular aging. In summary, inorganic nitrite, as well as dietary nitrate supplementation, represents a promising therapy for treatment of arterial aging and prevention of age-associated CVD in humans.
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Affiliation(s)
- Amy L Sindler
- Department of Integrative Physiology, University of Colorado Boulder, Boulder, Colorado
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22
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Acute lethal crush-injured rats can be successfully rescued by a single injection of high-dose dexamethasone through a pathway involving PI3K-Akt-eNOS signaling. J Trauma Acute Care Surg 2013; 75:241-9. [DOI: 10.1097/ta.0b013e3182905f11] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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23
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Madigan M, Zuckerbraun B. Therapeutic Potential of the Nitrite-Generated NO Pathway in Vascular Dysfunction. Front Immunol 2013; 4:174. [PMID: 23847616 PMCID: PMC3698458 DOI: 10.3389/fimmu.2013.00174] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2013] [Accepted: 06/17/2013] [Indexed: 12/30/2022] Open
Abstract
Nitric oxide (NO) generated through L-arginine metabolism by endothelial nitric oxide synthase (eNOS) is an important regulator of the vessel wall. Dysregulation of this system has been implicated in various pathological vascular conditions, including atherosclerosis, angiogenesis, arteriogenesis, neointimal hyperplasia, and pulmonary hypertension. The pathophysiology involves a decreased bioavailability of NO within the vessel wall by competitive utilization of L-arginine by arginase and “eNOS uncoupling.” Generation of NO through reduction of nitrate and nitrite represents an alternative pathway that may be utilized to increase the bioavailability of NO within the vessel wall. We review the therapeutic potential of the nitrate/nitrite/NO pathway in vascular dysfunction.
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Protective effects of probiotic Lactobacillus casei Zhang against endotoxin- and d-galactosamine-induced liver injury in rats via anti-oxidative and anti-inflammatory capacities. Int Immunopharmacol 2013; 15:30-7. [DOI: 10.1016/j.intimp.2012.10.026] [Citation(s) in RCA: 82] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2012] [Revised: 10/23/2012] [Accepted: 10/26/2012] [Indexed: 12/18/2022]
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25
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Itoh M, Shimokawa N, Tajika Y, Murakami T, Aotsuka N, Lesmana R, Farenia R, Iwasaki T, Okda J, Yorifuji H, Koibuchi N. Alterations of biochemical marker levels and myonuclear numbers in rat skeletal muscle after ischemia-reperfusion. Mol Cell Biochem 2012; 373:11-8. [PMID: 23065010 DOI: 10.1007/s11010-012-1470-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2012] [Accepted: 09/26/2012] [Indexed: 11/28/2022]
Abstract
Prolonged ischemia-reperfusion results in various damages in skeletal muscle. Following reperfusion, although the damaged muscles undergo regeneration, the precise process and mechanism of regeneration have not yet been fully understood. Here, we show the altered levels of plasma biochemical markers of muscle damage, and the change in myonuclear numbers in adult rat skeletal muscle by ischemia-reperfusion. Male Wistar rats were subjected to unilateral hindlimb ischemia by clamping the anterior tibial artery for 2 h before reperfusion. Both plasma creatine kinase activity and C-reactive protein levels in plasma were increased significantly at 0.5 h of reperfusion and returned to the control level at 24 h. The transverse sectional area of muscle belly of the anterior tibial muscles in ischemic side was significantly decreased by 20 % compared with those in sham-ischemic (control) side at 2 days, and returned to the control level at 5 days of reperfusion. Moreover, the number of interstitial nuclei in the ischemic side were significantly increased at 5-14 days and returned to the control level at 21 days of reperfusion. Central nuclei that are specifically observed in regenerating muscle, appeared at 5 days, reached a peak at 14 days, and disappeared at 28 days of reperfusion. Furthermore, MyoD, a regulatory factor for myogenesis, showed a transient expression at 5 days of reperfusion. These results indicate that, although the size of muscle seems to be recovered by 5 days of reperfusion, the most active muscle regeneration occurs much later, as shown by the increase in central nuclei.
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Affiliation(s)
- Motoharu Itoh
- Department of Integrative Physiology, Gunma University Graduate School of Medicine, 3-39-22, Maebashi, Gunma 371-8511, Japan
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