Ann Geriatr Med Res Search

CLOSE


Ann Geriatr Med Res > Volume 23(2); 2019 > Article
Jung, Choi, Jo, Shin, and Suh: Systemic and Local Phenotypes of Barium Chloride Induced Skeletal Muscle Injury in Mice

Abstract

Skeletal muscle regeneration in mice has traditionally been studied using local freeze burn or snake venom injection models. More recently, a barium chloride (BaCl2)-induced muscle injury model has been established and is gaining popularity due to the relatively simple procedure and accessibility to required reagents. Here we sought to characterize the local and systemic effects of BaCl2-induced muscle injury. For this study, a 1.2% BaCl2 solution was locally administered to the tibialis anterior (TA) muscle and local and systemic phenotypes were analyzed at different timepoints. When 50 μL of the solution was injected unilaterally in the TA muscle, no mortality was observed. However, when 100 μL of the solution was injected, 50% of the mice died within 24 h. Serum analysis of the mice injected with 50 μL of BaCl2 solution at days 1 and 7 revealed changes resembling rhabdomyolysis. At day 1 post-injection of 50 μL of the BaCl2 solution, acute suppurative inflammation was observed in gross examination of the TA muscle, while extensive hemorrhagic necrosis was revealed on histological examination. At day 7, regenerated myofibers with centralized nuclei appeared with the resolution of acute inflammatory infiltration and the muscle tissue displayed molecular signatures consistent with myofiber differentiation. The overall muscle injury and regeneration phenotypes in the BaCl2-induced muscle injury model were similar to those of the well-established freeze burn or snake venom injection models. Taken together, the BaCl2-induced muscle injury model is comparable to conventional muscle injury and regeneration models, with considerations for possible systemic effects.

INTRODUCTION

In living organisms, tissue injury and repair processes have evolved to restore tissue homeostasis as a response to damage and insults arising from both extrinsic and intrinsic factors.1) Unlike many non-vertebrates and some vertebrates such as salamanders, the tissue repair capabilities in mammals are relatively limited. Tissue regeneration processes in vertebrates require adult stem cells, which are maintained and regulated through complex interactions between the stem cells and cellular and humoral components of the surrounding milieu,2) and these interactions are often affected by biological events such as aging. In clinical medicine, understanding how appropriate tissue regeneration processes occur without organ function impairment and systemic adverse effects has important implications in the prognosis and treatment of disease.3)
Skeletal muscle is one of the most widely studied tissues in regenerative biology due to its accessibility to experimental injury models and its ability to regenerate efficiently in a relatively short timeframe of 14 days in laboratory mice.4,5) Furthermore, the clinical importance of alterations in skeletal muscle in older adults provides strong motivation to study skeletal muscle regeneration processes within the context of aging.6) In the pathophysiology of sarcopenia, a common geriatric condition defined by reduced muscle strength, performance and/or muscle mass, multifaceted causes including sedentary lifestyle, poor nutrition, hormonal changes with aging, and systemic inflammation have been reported to accelerate muscle wasting in older adults.7-10) Biologically, one of the contributing factors for sarcopenia is a decreased ability of aged muscle to regenerate following injury,11,12) prompting research to study the effects of aging on muscle stem cells and its paracrine milieu in muscle regeneration processes after injury.
In studying the skeletal muscle regeneration process, animal models commonly use direct injuries to individual muscles such as the tibialis anterior (TA) or extensor digitorum longus (EDL).13,14) Historically, the local injection of snake venoms such as cardiotoxin or notexin, which induce prolonged depolarization and disruption of cellular membranes, has been a popular and common method to induce muscle injury and regeneration.5) In the typical course of this muscle injury model, exudative acute inflammation with mononuclear cell infiltration occurs 12-24 h after toxin injection, with subsequent myogenic proliferation and new myotube formation with centralized nuclei occurring 5-6 days after the initial injury. Thereafter, myofiber maturation occurs until 10-14 days after the initial injury.5,15)
A skeletal muscle injury model provided by the local injection of barium chloride solution (BaCl2) has recently been established and is gaining popularity as a model for studying muscle regeneration.16) BaCl2 has advantages over previous reagents to induce muscle injury due to its ease of purchasing and transporting without the regulatory restrictions that apply to snake venoms. BaCl2 has been traditionally used as a potassium channel blocker in experimental physiology17) and is thought to induce myonecrosis in muscle tissue by eliciting prolonged depolarization of myofibers, analogous to snake venoms. However, compared to snake venoms, the detailed local effects of BaCl2 across a time course, including both gross and microscopic morphology, have been less studied. In addition, although its systemic toxicity18) (median lethal dose [LD50] of 19.2 mg Ba2+/kg in ICR mice) associated with arrhythmogenic effects has been reported,19) BaCl2-induced muscle injury models have been largely considered a locally specific method for the study of muscle regeneration. Therefore, this study sought to assess the acute systemic effects after BaCl2 injection in mouse TA muscle along and to perform a detailed analysis of local phenotypes during injury repair along a temporal scale.

MATERIALS AND METHODS

Animals

The animal experiments in this study were approved by the Institutional Animal Care and Use Committee at the Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Republic of Korea (approval number of KA2015-34). Male C57BL6/J mice were maintained in a specific pathogen-free animal facility at KAIST and were housed at room temperature (24°C) under a 12 h light/dark cycle. All mice were allowed access to water and a standard chow diet ad libitum. Mice between 12 and 15 weeks of age were used for the experiments.

Muscle Injury Procedure

All muscle injury procedures were performed under inhaled anesthesia using sevoflurane with a mixture of oxygen with room air. In studying acute survival associated with BaCl2 injection, 100 μL or 50 μL of a 1.2% BaCl2 solution dissolved in phosphate buffered saline (PBS) was injected to the TA muscles of sedated mice. Since we anecdotally observed that mice inadvertently given a higher dose of BaCl2 solution deceased one day after injection, we selected 100 μL and 50 μL doses for survival analysis. For the study of the local phenotypes and levels of serum markers, 50 μL of a 1.2% BaCl2 solution dissolved in PBS was injected into the TA muscles of sedated mice. The contralateral hindlimbs served as untreated controls.

Blood Chemistry

At day 0, as a control group before BaCl2 injection, and at days 1 and 7 after BaCl2 injection, whole blood was collected in serum-separating tubes by cardiac puncture. From the separated serum after centrifugation, levels of chemical markers including aspartate aminotransferase (AST), alanine aminotransferase (ALT), total cholesterol, creatinine kinase (CK), creatinine, glucose, C-reactive protein (CRP), and lactate dehydrogenase (LDH) were measured using a Cobas 8000 modular analyzer system (Roche, Basel, Switzerland) according to the manufacturer’s protocol.

Tissue Harvest, Histological Analysis, and RNA Extraction

Upon euthanasia and sacrifice of the mice, the TA muscles were quickly harvested at 1, 3, 5, 7 days after BaCl2 injection. For histological analysis, the muscles were fixed in neutral buffered formalin overnight and then processed and embedded in paraffin for hematoxylin and eosin staining. Total RNA from TA muscles 7 days after BaCl2 injection was extracted using TRIzol (Invitrogen, Carlsbad, CA, USA) according to the manufacturer’s protocol. After extraction, RNA quality was assessed on a Bioanalyzer (Agilent Technologies, Palo Alto, CA, USA). RNA samples with RNA integrity numbers (RINs) above 7.0 were used for RNA sequencing.

RNA Sequencing

For RNA sequencing, libraries were prepared with an Illumina TruSeq Sample Preparation Kit and sequenced on a NovaSeq6000 system (Illumina, San Diego, CA, USA) with multiplexing to produce more than 40 million reads per sample. The reads were converted to fragments per kilobase of transcript per million (FPKM) after alignment to the reference mouse genome. We considered differentially expressed genes with at least two-fold changes in expression values between groups.

Protein Extraction and Western Blot Analysis

Protein lysates were prepared from TA muscles in control mice and test mice 1, 4, and 7 days after BaCl2 injection using RIPA lysis buffer (Thermo Fischer Scientific, Wilmington, DE, USA) containing a protease inhibitor cocktail. Protein concentrations were measured using a BCA Protein Assay Kit (Thermo Fisher Scientific); the samples were denatured in sodium dodecyl sulfate (SDS) loading buffer, separated by 12% SDS-polyacrylamide gel electrophoresis (SDS-PAGE) and transferred to polyvinylidene difluoride (PVDF) membranes. The transferred membranes were examined through Ponceau S staining. Following blocking with 3% bovine serum albumin for 30 min, the membranes were incubated overnight at 4°C with anti-β-catenin (1:1,000, #8480), anti-phospho-ERK (1:1,000, #9101), anti-ERK (1:1,000, #9102), anti-phospho-S6 (1:1,000, #2211), anti-S6 (1:1,000, #2217), and anti-α-tubulin (1:2,000, #2144) antibodies. After incubation with horseradish peroxidate (HRP)-conjugated host-specific secondary antibody, the resulting blot was visualized on a ChemiDoc XRS+ system (Biorad, Hercules, CA, USA). All antibodies were purchased from Cell Signaling Technology (Danvers, MA, USA).

Statistical Analysis

For statistical comparison, values between groups were compared using independent t-tests. For acute systemic toxicity, survival analysis was performed with log-rank tests and Kaplan-Meier plots. Statistical analysis was performed using GraphPad Prism version 6 (GraphPad Software, San Diego, CA, USA), with two-sided p-values <0.05 considered statistically significant.

RESULTS

Systemic Effects of the BaCl 2 -Induced Muscle Injury Model

We first assessed for possible acute systemic toxicity with local BaCl2 injection of TA muscle. Upon injection of 50 μL or 100 μL of a 1.2% BaCl2 solution, four of eight mice in the 100 μL group died within 24 h after injection, while none of the eight mice in the 50 μL group died (Fig. 1A). Observation of the mice until 15 days after injection revealed no subacute mortality after the initial 24 h in both groups.
Gross examination of separated serum color showed a bright red color at days 1 and 7 after injection of 50 μL BaCl2 to the TA muscle (Fig. 1B), indicative of myoglobinemia. Accordingly, significant increases in serum CK and LDH levels were observed at days 1 and 7, compared to those in the uninjected controls (Fig. 1C). There were similar patterns of increased LDH and AST at days 1 and 7, tracking with serum CK levels, suggesting that the increase in AST and LDH was due to acute myonecrosis. There was no statistical difference in ALT creatinine levels between the control, day 1, and day 7 groups (Fig. 1C). The serum CRP levels were less than 0.5 mg/L in all three groups (data not shown).

Local Gross and Microscopic Morphology in the BaCl 2 -Induced Muscle Injury Model

To examine the temporal changes in the gross and histological morphologies of TA muscle after BaCl2-induced muscle injury, we harvested TA muscle at 1, 3, 5, and 7 days after local BaCl2 injection (50 μL) and performed hematoxylin and eosin staining (Fig. 2). Grossly, hemorrhagic edema peaked at day 1 and gradually subsided during the regeneration process. Histologically, hemorrhagic inflammation with pronounced exudation of red blood cells was observed at day 1 and mononuclear infiltration peaked at day 3. At day 5, large numbers of small myofibers with centralized nuclei appeared and mononuclear infiltration was mostly cleared at day 7.

Molecular Signatures of Muscle Regeneration in the Bacl 2 -Induced Muscle Injury Model

We assessed the gene expression profile of muscle regeneration from RNA sequencing data comparing regenerating TA muscles at 7 days after BaCl2-induced injury to uninjured muscles (n=4 for each group). The expression profiles of genes reflecting proliferating cells showed mixed results, with Pax7 and Myf5 significantly increased at day 7 but Myod1, Foxk1, Des showing no significant difference when compared to uninjured muscles (Table 1). In contrast, genes reflecting differentiating muscle stem cells (satellite cells) including Fgfr4, Myh3, Atp2a2, Tnnt1, Igf2, Chrna1, Tnc, and Myog were consistently activated at day 7.
To assess cellular proliferation and protein synthesis activity at days 1, 4, and 7 after BaCl2 injection, western blot analysis was performed against proteins known to be activated during muscle regeneration. The levels of β-catenin, phospho-β-catenin, phospho-S6, and phospho-ERK were increased in the BaCl2-injected muscle at days 4 and 7 compared to those in control muscle (Fig. 3).

DISCUSSION

This study assessed the systemic and local phenotypes of the BaCl2-induced muscle injury model. Using varying BaCl2 doses to induce muscle injury, we found that the experimental window in terms of injection dosage was limited as acute mortality in 50% of mice was observed when 100 μL of a 1.2% BaCl2 solution was injected into TA muscles. Also, systemic rhabdomyolysis was observed based on serum color and blood chemistry after BaCl2-induced TA injury. Locally, the injury and regeneration processes of BaCl2 were largely similar to the previously reported phenotypes produced by injecting snake venoms.
In most biological studies, muscle injury and regeneration models have been proposed as a strictly tissue-specific, local method to study regenerating mechanisms focusing on muscle stem cells and their local environments.2,5) Although many studies have analyzed the effect of non-tissue autonomous factors such as aging,20) endocrine alterations, 21) and systemic inflammation22) on muscle regeneration models of laboratory animals, studies on the systemic effects of muscle injury have been mostly confined to human clinical studies.23) As a result, the possible systemic effects of various muscle injury models in mice have been not been carefully assessed. In the present study, we observed two distinct systemic effects of BaCl2 injection model.
First, high-dose BaCl2 injection, with a two-fold increase in dosage, resulted in 50% of the mice dying within 1 day after injection. Since BaCl2 is a known arrhythmogenic agent acting as potassium channel blocker with an LD50 of 19.2 mg Ba2+/kg in ICR mice,18,24) 100 μL of 1.2% BaCl2 corresponds to 31.8 mg Ba2+/kg, which might have been enough to cause fatal arrhythmia. Moreover, in standard experiments of BaCl2-induced muscle injury using 50 μL of a 1.2% BaCl2 solution (15.9 mg Ba2+/kg), mice may suffer cardiac arrhythmias which may cause alterations in systemic physiology compared to that in uninjected control mice, although these arrhythmias may not lead to mortality. This effect on survival is likely specific to BaCl2 as other muscle injury methods do not report such systemic effects and the mechanisms of muscle injury are different.
Second, rhabdomyolysis-like features were observed in the analysis of serum at days 1 and 7 after BaCl2 injection. After centrifugation, the serum supernatants presented with a bright red color at days 1 and 7, with elevated serum CK and LDH levels at days 1 and 7, suggesting myoglobulinemia with myonecrosis similar to what is observed in clinical snake venom poisoning.25) Although the possibility of acute kidney injury was low, with serum creatinine levels not elevated significantly by BaCl2 injection, myoglobinemia may cause systemic responses that may eventually affect the muscle regeneration process, which requires the precise orchestration of inflammatory cells, local paracrine environment, and muscle stem cells.26,27) These systemic effects are unavoidable in in vivo muscle injury models since all muscle injury and regeneration models accompany acute, severe myonecrosis in the mouse hindlimb.
Local phenotypic characterization of injury and regeneration after BaCl2 injection revealed temporal changes in histological features similar to those in previous models of muscle regeneration, with suppurative inflammation at day 1, cellular proliferation at day 3, myotube formation at day 5, and myotube maturation at day 7 and beyond.5,15,28) Assessment of protein and RNA expressions at day 7 showed upregulation of differentiation and maturation markers in accordance with previous reports.5,15) Based on these findings, BaCl2-induced muscle injury models are largely similar to other injury models for the study of muscle regeneration.
Although we identified the systemic effects of the BaCl2-induced muscle injury model that were less considered in previous studies, this study has several limitations. First, we were not able to directly compare BaCl2 to cardiotoxin, the most popular venom used in muscle injury experiments, due to logistic issues with local regulations. Also, we did not confirm that the acute mortality after high-dose BaCl2 injection was actually due to fatal arrhythmia. This limiting aspect may be resolved by performing electrocardiogram studies during the acute observation periods after BaCl2 injection.
However, with clinical and systemic perspectives on muscle regeneration, we observed that muscle injury and regeneration following BaCl2 injection occurred with possible efferent signals that may influence other organs, which may, in turn, cause indirect effects on muscle regeneration phenotypes. In particular, the effects of cross-talk between injured/repairing muscle and other organ systems should be considered when studying alterations of muscle regeneration within the context of aging.

ACKNOWLEDGMENTS

This study was supported by a Korean Geriatrics Society Young Researcher Grant (2016) and National Research Foundation of Korea grants NRF-2018R1A2A3075389 and NRF-2016R1A2B1011083.

CONFLICT OF INTEREST DISCLOSURES

CONFLICTS OF INTEREST DISCLOSURES

The researchers claim no conflicts of interest.

Fig. 1
Systemic phenotypes of the barium chloride (BaCl2)-induced muscle injury model. (A) Kaplan-Meier survival plot of mice that underwent BaCl2 injection of the ipsilateral tibialis anterior muscle (n=8 for each group, log-rank p-value <0.001). (B) Red-colored serum at days 1 and 7 after BaCl2 injection after centrifugation. (C) Analysis of serum biochemical markers from mice at days 1 and 7 after BaCl2 injection, with uninjured mice (control). ALT, alanine aminotransferase; AST, aspartate aminotransferase; CK, creatinine kinase; LDH, lactate dehydrogenase. **p<0.01, ***p<0.001.
agmr-23-083f1.jpg
Fig. 2
Representative gross morphology and hematoxylin and eosin-stained sections of tibialis anterior muscle at days 1, 3, 5, and 7 after barium chloride (BaCl2) injection, with uninjured muscle (control).
agmr-23-083f2.jpg
Fig. 3
Protein expression in tibialis anterior muscle at days 1, 4, and 7 after barium chloride (BaCl2) injection compared to uninjured muscle (control), examined by western blotting. α-Tubulin was used as the loading control (n=3 for each group).
agmr-23-083f3.jpg
Table 1
Expression of selected genes from RNA sequencing, comparing tibialis anterior muscles at 7 days after BaCl2 injection to uninjured tibialis anterior muscles (n=4 for each group)
Gene ID Gene name Log2FC Log2FC SE p-value
Markers of proliferating satellite cells
 ENSMUSG00000028736 Pax7 1.91 0.28 2.41×10−10
 ENSMUSG00000000435 Myf5 2.23 0.28 2.15×10−13
 ENSMUSG00000009471 Myod1 0.42 0.24 0.163
 ENSMUSG00000056493 Foxk1 −0.27 0.38 0.630
 ENSMUSG00000026208 Des 0.34 0.28 0.374
Markers of differentiating satellite cells
 ENSMUSG00000005320 Fgfr4 2.14 0.31 1.64×10−10
 ENSMUSG00000020908 Myh3 6.66 0.86 6.51×10−13
 ENSMUSG00000029467 Atp2a2 1.70 0.48 0.002
 ENSMUSG00000064179 Tnnt1 2.27 0.52 9.93×10−5
 ENSMUSG00000048583 Igf2 5.94 0.30 1.09×10−84
 ENSMUSG00000027107 Chrna1 2.36 0.25 4.55×10−19
 ENSMUSG00000028364 Tnc 4.61 0.61 2.40×10−12
 ENSMUSG00000026459 Myog 4.26 0.35 6.48×10−32

FC, fold change; SE, standard error.

REFERENCES

1. Krafts KP. Tissue repair: the hidden drama. Organogenesis 2010;6:225-33. 21220961. 3055648. 10.4161/org.6.4.12555.
crossref pmid pmc
2. Blau HM, Cosgrove BD, Ho AT. The central role of muscle stem cells in regenerative failure with aging. Nat Med 2015;21:854-62. 26248268. 4731230. 10.1038/nm.3918.
crossref pmid pmc pdf
3. Kim BH, Jung HW, Seo SH, Shin H, Kwon J, Suh JM. Synergistic actions of FGF2 and bone marrow transplantation mitigate radiation-induced intestinal injury. Cell Death Dis 2018;9:38329515101. 5841425. 10.1038/s41419-018-0421-4.
crossref pmid pmc pdf
4. Gayraud-Morel B, Chrétien F, Tajbakhsh S. Skeletal muscle as a paradigm for regenerative biology and medicine. Regen Med 2009;4:293-319. 19317647. 10.2217/17460751.4.2.293.
crossref pmid
5. Chargé SB, Rudnicki MA. Cellular and molecular regulation of muscle regeneration. Physiol Rev 2004;84:209-38. 14715915. 10.1152/physrev.00019.2003.
crossref pmid
6. Sousa-Victor P, Gutarra S, García-Prat L, Rodriguez-Ubreva J, Ortet L, Ruiz-Bonilla V, et al. Geriatric muscle stem cells switch reversible quiescence into senescence. Nature 2014;506:316-21. 24522534. 10.1038/nature13013.
crossref pmid pdf
7. Cesari M. Physical frailty and sarcopenia: development of a framework for supporting interventions against incident mobility disability. Ann Geriatr Med Res 2017;21:42-8. 10.4235/agmr.2017.21.2.42.
crossref
8. Jang HC. How to diagnose sarcopenia in Korean older adults? Ann Geriatr Med Res 2018;22:73-9.
crossref pdf
9. Park HM. Current status of sarcopenia in Korea: a focus on Korean geripausal women. Ann Geriatr Med Res 2018;22:52-61. 10.4235/agmr.2018.22.2.52.
crossref pdf
10. Cruz-Jentoft AJ, Bahat G, Bauer J, Boirie Y, Bruyère O, Cederholm T, et al. Sarcopenia: revised European consensus on definition and diagnosis. Age Ageing 2019;48:16-31. 30312372. 6322506. 10.1093/ageing/afy169.
crossref pdf
11. Conboy IM, Conboy MJ, Smythe GM, Rando TA. Notch-mediated restoration of regenerative potential to aged muscle. Science 2003;302:1575-7. 14645852. 10.1126/science.1087573.
crossref pmid
12. Carlson ME, Suetta C, Conboy MJ, Aagaard P, Mackey A, Kjaer M, et al. Molecular aging and rejuvenation of human muscle stem cells. EMBO Mol Med 2009;1:381-91. 20049743. 2875071. 10.1002/emmm.200900045.
crossref
13. Brack AS, Conboy MJ, Roy S, Lee M, Kuo CJ, Keller C, et al. Increased Wnt signaling during aging alters muscle stem cell fate and increases fibrosis. Science 2007;317:807-10. 17690295. 10.1126/science.1144090.
crossref pmid
14. Brack AS, Conboy IM, Conboy MJ, Shen J, Rando TA. A temporal switch from notch to Wnt signaling in muscle stem cells is necessary for normal adult myogenesis. Cell Stem Cell 2008;2:50-9. 18371421. 10.1016/j.stem.2007.10.006.
crossref
15. Carosio S, Berardinelli MG, Aucello M, Musarò A. Impact of ageing on muscle cell regeneration. Ageing Res Rev 2011;10:35-42. 19683075. 10.1016/j.arr.2009.08.001.
crossref pmid
16. Kim JH, Han GC, Seo JY, Park I, Park W, Jeong HW, et al. Sex hormones establish a reserve pool of adult muscle stem cells. Nat Cell Biol 2016;18:930-40. 27548913. 10.1038/ncb3401.
crossref pmid pdf
17. Yanagisawa T, Hashimoto H, Taira N. Interaction of potassium channel openers and blockers in canine atrial muscle. Br J Pharmacol 1989;97:753-62. 2527073. 1854592. 10.1111/j.1476-5381.1989.tb12013.x.
crossref pmid pmc
18. Syed IB, Hosain F. Determination of LD50 of barium chloride and allied agents. Toxicol Appl Pharmacol 1972;22:150-2. 5034984.
crossref pmid
19. Fossa AA, Carlson GP. Antiarrhythmic effect of disulfiram in various cardiotoxic models. Pharmacology 1983;26:164-71. 6836004. 10.1159/000137798.
crossref pmid
20. Conboy IM, Conboy MJ, Wagers AJ, Girma ER, Weissman IL, Rando TA. Rejuvenation of aged progenitor cells by exposure to a young systemic environment. Nature 2005;433:760-4. 15716955. 10.1038/nature03260.
crossref pmid pdf
21. Akhmedov D, Berdeaux R. The effects of obesity on skeletal muscle regeneration. Front Physiol 2013;4:37124381559. 3865699. 10.3389/fphys.2013.00371.
crossref pmid pmc
22. Langen RC, Schols AM, Kelders MC, van der Velden JL, Wouters EF, Janssen-Heininger YM. Muscle wasting and impaired muscle regeneration in a murine model of chronic pulmonary inflammation. Am J Respir Cell Mol Biol 2006;35:689-96. 16794259. 10.1165/rcmb.2006-0103OC.
crossref pmid
23. Better OS, Rubinstein I, Reis DN. Muscle crush compartment syndrome: fulminant local edema with threatening systemic effects. Kidney Int 2003;63:1155-7. 12631101. 10.1046/j.1523-1755.2003.00822.x.
crossref pmid
24. Mattila MJ, Anyos K, Puisto EL. Cardiotoxic actions of doxepin and barium chloride in conscious rabbits. Arch Toxicol Suppl 1986;9:205-8. 3468898.
crossref pmid
25. Azevedo-Marques MM, Cupo P, Coimbra TM, Hering SE, Rossi MA, Laure CJ. Myonecrosis, myoglobinuria and acute renal failure induced by South American rattlesnake (Crotalus durissus terrificus) envenomation in Brazil. Toxicon 1985;23:631-6. 4060176. 10.1016/0041-0101(85)90367-8.
crossref pmid
26. Brack AS, Rando TA. Tissue-specific stem cells: lessons from the skeletal muscle satellite cell. Cell Stem Cell 2012;10:504-14. 10.1016/j.stem.2012.04.001. 22560074. 3348769.
crossref pmid pmc
27. Shea KL, Xiang W, LaPorta VS, Licht JD, Keller C, Basson MA, et al. Sprouty1 regulates reversible quiescence of a self-renewing adult muscle stem cell pool during regeneration. Cell Stem Cell 2010;6:117-29. 10.1016/j.stem.2009.12.015. 20144785. 2846417.
crossref pmid pmc
28. Hardy D, Besnard A, Latil M, Jouvion G, Briand D, Thépenier C, et al. Comparative study of injury models for studying muscle regeneration in mice. PLoS One 2016;11:e014719810.1371/journal.pone.0147198. 26807982. 4726569.
crossref pmid pmc
TOOLS
Share :
Facebook Twitter Linked In Google+ Line it
METRICS Graph View
  • 0 Crossref
  •    
  • 99 View
  • 6 Download
Related articles in
Ann Geriatr Med Res


ABOUT
ARTICLE CATEGORY

Browse all articles >

BROWSE ARTICLES
EDITORIAL POLICY
FOR CONTRIBOUTORS
Editorial Office
#401 Yuksam Hyundai Venturetel, 20, Teheran-ro 25-gil, Gangnam-gu, Seoul 06132, Korea
Tel: +82-2-2269-1039    Fax: +82-2-2269-1040    E-mail: agmr.editorial@gmail.com                

Copyright © 2019 by Korean Geriatrics Society. All rights reserved.

Developed in M2community

Close layer
prev next