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Chen MY, Duan YL, Zhu Y, Wang JH, Hu QB, Guo SS, Ding BY, Zhang ZF, Li LL. Responses of intestinal morphology, immunity, antioxidant status and cecal microbiota to the mixture of glycerol monolaurate and cinnamaldehyde in laying hens. Poult Sci 2024; 103:103645. [PMID: 38547675 PMCID: PMC11000181 DOI: 10.1016/j.psj.2024.103645] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Revised: 03/02/2024] [Accepted: 03/08/2024] [Indexed: 04/11/2024] Open
Abstract
This study was to determine the effects of the mixture of glycerol monolaurate and cinnamaldehyde (GCM) supplementation on the intestinal morphology, immunity, antioxidant status and cecal microbiota of laying hens. A total of 1,120 healthy laying hens (Jingfen-1 strain) at the age of 14 wk were randomly divided into 4 groups with 10 replicates of 28 layers in each and layers were fed diets containing 0 (control group), or 250, 500, and 1,000 mg/kg GCM for 12 wk. The results showed that dietary supplementation with GCM significantly increased intestinal villus height and villus height/crypt depth, duodenal villus area, total superoxide disumutase activities in the liver and jejunum, jejunal glutathione peroxidase activities while decreased duodenal and jejunal crypt depth, hydrogen peroxide content in the liver and jejunal malondialdehyde content of laying hens aging 28 wk (P < 0.05). Meanwhile, GCM addition significantly increased serum immunoglobulin A and immunoglobulin M concentration of layers at the age of 20, 24, and 28 wk (P < 0.05). Moreover, it was observed in the 16S rRNA sequencing that the addition of GCM elevated the abundance and diversity of gut microbiota in laying hens. The predominant bacteria from each group were Bacteroidota and Firmicutes at the phylum level and Bacteroides and Lactobacillus were the dominant genera. The composition and structure of cecal microflora were changed by the addition of GCM to the diet of laying hens. In conclusion, the addition of GCM (500-1,000 mg/kg diet) can improve intestinal morphology, immune function, intestinal and liver antioxidant status and intestinal flora of laying hens, thereby improving intestinal digestion and absorption capacity. These findings provide a new way to further explore the mechanism of GCM improving intestinal health.
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Affiliation(s)
- M Y Chen
- Engineering Research Center of Feed Protein Resources on Agricultural By-Products, Ministry of Education, Hubei Key Laboratory of Animal Nutrition and Feed Science, Wuhan Polytechnic University, Wuhan 430023, China
| | - Y L Duan
- Engineering Research Center of Feed Protein Resources on Agricultural By-Products, Ministry of Education, Hubei Key Laboratory of Animal Nutrition and Feed Science, Wuhan Polytechnic University, Wuhan 430023, China
| | - Y Zhu
- Engineering Research Center of Feed Protein Resources on Agricultural By-Products, Ministry of Education, Hubei Key Laboratory of Animal Nutrition and Feed Science, Wuhan Polytechnic University, Wuhan 430023, China
| | - J H Wang
- Calid biotech (Wuhan) Co., Ltd., Wuhan 430073, China
| | - Q B Hu
- Hunan International Joint Laboratory of Animal Intestinal Ecology and Health, Laboratory of Animal Nutrition and Human Health, Hunan Provincial Key Laboratory of Animal Intestinal Function and Regulation, College of Life Sciences, Hunan Normal University, Changsha 410081, China
| | - S S Guo
- Engineering Research Center of Feed Protein Resources on Agricultural By-Products, Ministry of Education, Hubei Key Laboratory of Animal Nutrition and Feed Science, Wuhan Polytechnic University, Wuhan 430023, China
| | - B Y Ding
- Engineering Research Center of Feed Protein Resources on Agricultural By-Products, Ministry of Education, Hubei Key Laboratory of Animal Nutrition and Feed Science, Wuhan Polytechnic University, Wuhan 430023, China
| | - Z F Zhang
- Engineering Research Center of Feed Protein Resources on Agricultural By-Products, Ministry of Education, Hubei Key Laboratory of Animal Nutrition and Feed Science, Wuhan Polytechnic University, Wuhan 430023, China
| | - L L Li
- Engineering Research Center of Feed Protein Resources on Agricultural By-Products, Ministry of Education, Hubei Key Laboratory of Animal Nutrition and Feed Science, Wuhan Polytechnic University, Wuhan 430023, China.
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Li L, Zhu Y, Zhang S, Wang J, Guo S, Ding B, Zhang Z. Effects of a mixture of glycerol monolaurate and cinnamaldehyde supplementation on laying performance, egg quality, and antioxidant status in laying hens. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2024; 104:2015-2022. [PMID: 37919879 DOI: 10.1002/jsfa.13092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 10/26/2023] [Accepted: 11/03/2023] [Indexed: 11/04/2023]
Abstract
BACKGROUND This study aimed to determine the effects of a mixture of glycerol monolaurate and cinnamaldehyde (GCM) supplementation on the laying performance, egg quality, antioxidant capacity, and serum parameters of laying hens. A total of 1120 14-week-old Jingfen-1 strain laying hens with similar performance were randomly allocated to four dietary treatments: control, and GCM groups supplemented with 250, 500, or 1000 mg kg-1 for 12 weeks. RESULTS Compared with the control group, GCM-supplemented groups significantly reduced (P < 0.05) the rate of unqualified eggs of laying hens aged 17-24 weeks. Supplementation of GCM significantly increased (P < 0.05) yolk color and serum glutathione peroxidase (GSH-Px) activity but decreased (P < 0.05) the hydrogen peroxide (H2 O2 ) content in the serum of laying hens at the age of 20 weeks. Furthermore, groups supplemented with GCM showed a significant increase (P < 0.05) in Haugh unit, yolk color, activities of total superoxide dismutase and GSH-Px, and the glucose content in serum, and a decrease (P < 0.05) in the content of urea nitrogen and H2 O2 and malondialdehyde in serum of laying hens at the age of 24 weeks. 500 mg kg-1 GCM supplementation significantly increased (P < 0.05) the number of large white follicles and 1000 mg kg-1 GCM supplementation decreased the number of large yellow follicles in 28-week-old laying hens. CONCLUSION These results indicated that GCM supplementation has positive effects on reducing egg loss and improving egg quality in the early laying period of laying hens. © 2023 Society of Chemical Industry.
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Affiliation(s)
- Lanlan Li
- Hubei Key Laboratory of Animal Nutrition and Feed Science, Engineering Research Center of Feed Protein Resources on Agricultural By-Products, Ministry of Education, Wuhan Polytechnic University, Wuhan, China
| | - Yue Zhu
- Hubei Key Laboratory of Animal Nutrition and Feed Science, Engineering Research Center of Feed Protein Resources on Agricultural By-Products, Ministry of Education, Wuhan Polytechnic University, Wuhan, China
| | - Shuangshuang Zhang
- Hubei Key Laboratory of Animal Nutrition and Feed Science, Engineering Research Center of Feed Protein Resources on Agricultural By-Products, Ministry of Education, Wuhan Polytechnic University, Wuhan, China
| | - Jihua Wang
- Calid Biotech (Wuhan) Co., Ltd, Wuhan, China
| | - Shuangshuang Guo
- Hubei Key Laboratory of Animal Nutrition and Feed Science, Engineering Research Center of Feed Protein Resources on Agricultural By-Products, Ministry of Education, Wuhan Polytechnic University, Wuhan, China
| | - Binying Ding
- Hubei Key Laboratory of Animal Nutrition and Feed Science, Engineering Research Center of Feed Protein Resources on Agricultural By-Products, Ministry of Education, Wuhan Polytechnic University, Wuhan, China
| | - Zhengfan Zhang
- Hubei Key Laboratory of Animal Nutrition and Feed Science, Engineering Research Center of Feed Protein Resources on Agricultural By-Products, Ministry of Education, Wuhan Polytechnic University, Wuhan, China
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Kaur N, Gupta P, Dutt V, Sharma O, Gupta S, Dua A, Injeti E, Mittal A. Cinnamaldehyde attenuates TNF-α induced skeletal muscle loss in C2C12 myotubes via regulation of protein synthesis, proteolysis, oxidative stress and inflammation. Arch Biochem Biophys 2024; 753:109922. [PMID: 38341069 DOI: 10.1016/j.abb.2024.109922] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 01/10/2024] [Accepted: 01/31/2024] [Indexed: 02/12/2024]
Abstract
Inflammation is the primary driver of skeletal muscle wasting, with oxidative stress serving as both a major consequence and a contributor to its deleterious effects. In this regard, regulation of both can efficiently prevent atrophy and thus will increase the rate of survival [1]. With this idea, we hypothesize that preincubation of Cinnamaldehyde (CNA), a known compound with anti-oxidative and anti-inflammatory properties, may be able to prevent skeletal muscle loss. To examine the same, C2C12 post-differentiated myotubes were treated with 25 ng/ml Tumor necrosis factor-alpha (TNF-α) in the presence or absence of 50 μM CNA. The data showed that TNF-α mediated myotube thinning and a lower fusion index were prevented by CNA supplementation 4 h before TNF-α treatment. Moreover, a lower level of ROS and thus maintained antioxidant defense system further underlines the antioxidative function of CNA in atrophic conditions. CNA preincubation also inhibited an increase in the level of inflammatory cytokines and thus led to a lower level of inflammation even in the presence of TNF-α. With decreased oxidative stress and inflammation by CNA, it was able to maintain the intracellular level of injury markers (CK, LDH) and SDH activity of mitochondria. In addition, CNA modulates all five proteolytic systems [cathepsin-L, UPS (atrogin-1), calpain, LC3, beclin] simultaneously with an upregulation of Akt/mTOR pathway, in turn, preserves the muscle-specific proteins (MHCf) from degradation by TNF-α. Altogether, our study exhibits attenuation of muscle loss and provides insight into the possible mechanism of action of CNA in curbing TNF-α induced muscle loss, specifically its effect on proteolysis and protein synthesis.
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Affiliation(s)
- Nirmaljeet Kaur
- Skeletal Muscle Lab, Institute of Integrated & Honors Studies, Kurukshetra University, Kurukshetra, Haryana, India
| | - Prachi Gupta
- Skeletal Muscle Lab, Institute of Integrated & Honors Studies, Kurukshetra University, Kurukshetra, Haryana, India
| | - Vikas Dutt
- Skeletal Muscle Lab, Institute of Integrated & Honors Studies, Kurukshetra University, Kurukshetra, Haryana, India
| | - Onkar Sharma
- Skeletal Muscle Lab, Institute of Integrated & Honors Studies, Kurukshetra University, Kurukshetra, Haryana, India
| | - Sanjeev Gupta
- Skeletal Muscle Lab, Institute of Integrated & Honors Studies, Kurukshetra University, Kurukshetra, Haryana, India
| | - Anita Dua
- Skeletal Muscle Lab, Institute of Integrated & Honors Studies, Kurukshetra University, Kurukshetra, Haryana, India
| | - Elisha Injeti
- Department of Pharmaceutical Sciences, Cedarville University, School of Pharmacy, Cedarville, OH, USA
| | - Ashwani Mittal
- Skeletal Muscle Lab, Institute of Integrated & Honors Studies, Kurukshetra University, Kurukshetra, Haryana, India.
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Singh A, Buckholz A, Kumar S, Newberry C. Implications of Protein and Sarcopenia in the Prognosis, Treatment, and Management of Metabolic Dysfunction-Associated Steatotic Liver Disease (MASLD). Nutrients 2024; 16:658. [PMID: 38474786 DOI: 10.3390/nu16050658] [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: 01/21/2024] [Revised: 02/22/2024] [Accepted: 02/23/2024] [Indexed: 03/14/2024] Open
Abstract
Metabolic Dysfunction-Associated Steatotic Liver Disease (MASLD) is a common cause of chronic liver disease globally, with prevalence rapidly increasing in parallel with rising rates of obesity and metabolic syndrome. MASLD is defined by the presence of excess fat in the liver, which may induce inflammatory changes and subsequent fibrosis in high-risk patients. Though MASLD occurs frequently, there is still no approved pharmacological treatment, and the mainstay of therapy remains lifestyle modification via dietary changes, enhancement of physical activity, and management of metabolic comorbidities. Most nutrition research and clinical guidance in this disease centers on the reduction in fructose and saturated fat in the diet, although the emerging literature suggests that protein supplementation is important and implicates muscle mass and sarcopenia in disease-related outcomes. This review will assess the current data on these topics, with the goal of defining best practices and identifying research gaps in care.
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Affiliation(s)
- Avneet Singh
- Department of Medicine, Cooper University Hospital, Camden, NJ 08103, USA
| | - Adam Buckholz
- Division of Gastroenterology, Weill Cornell Medical Center, New York, NY 10065, USA
| | - Sonal Kumar
- Division of Gastroenterology, Weill Cornell Medical Center, New York, NY 10065, USA
| | - Carolyn Newberry
- Division of Gastroenterology, Weill Cornell Medical Center, New York, NY 10065, USA
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Wu X, Zhu N, He L, Xu M, Li Y. 5'-Cytimidine Monophosphate Ameliorates H 2O 2-Induced Muscular Atrophy in C2C12 Myotubes by Activating IRS-1/Akt/S6K Pathway. Antioxidants (Basel) 2024; 13:249. [PMID: 38397848 PMCID: PMC10886096 DOI: 10.3390/antiox13020249] [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: 01/16/2024] [Revised: 02/08/2024] [Accepted: 02/08/2024] [Indexed: 02/25/2024] Open
Abstract
Age-related muscle atrophy (sarcopenia), characterized by reduced skeletal muscle mass and muscle strength, is becoming increasingly prevalent worldwide, which is especially true for older people, and can seriously damage health and quality of life in older adults. This study aims to investigate the beneficial effects of 5'-cytimidine monophosphate (CMP) on H2O2-induced muscular atrophy in C2C12 myotubes. C2C12 myotubes were treated with H2O2 in the presence and absence of CMP and the changes in the anti-oxidation, mitochondrial functions, and expression of sarcopenia-related proteins were observed. Immunofluorescence analysis showed that CMP significantly increased the diameter of myotubes. We found that CMP could increase the activity of antioxidant enzymes and improve mitochondrial dysfunction, as well as reduce inflammatory cytokine levels associated with sarcopenia. RNA-seq analysis showed that CMP could relieve insulin resistance and promote protein digestion and absorption. Western blot analysis further confirmed that CMP could promote the activation of the IRS-1/Akt/S6K signaling pathway and decrease the expression of MuRF1 and Atrogin-1, which are important markers of muscle atrophy. The above results suggest that CMP protects myotubes from H2O2-induced atrophy and that its potential mechanism is associated with activating the IRS-1/Akt/S6K pathway to promote protein synthesis by improving mitochondrial dysfunction and insulin resistance. These results indicate that CMP can improve aging-related sarcopenia.
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Affiliation(s)
- Xin Wu
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University Health Science Center, Beijing 100191, China;
- Beijing Key Laboratory of Protein Posttranslational Modifications and Cell Function, Department of Biochemistry and Molecular Biology, School of Basic Medical Science, Peking University Health Science Center, Beijing 100191, China
| | - Na Zhu
- Department of Nutrition and Food Hygiene, College of Public Health, Inner Mongolia Medical University, Hohhot 010059, China;
| | - Lixia He
- Division of Molecular and Cellular Oncology, Dana-Farber Cancer Institute, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA 02115, USA;
| | - Meihong Xu
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University Health Science Center, Beijing 100191, China;
- Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, Peking University Health Science Center, Beijing 100191, China
| | - Yong Li
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University Health Science Center, Beijing 100191, China;
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Li L, Huang C, Pang J, Huang Y, Chen X, Chen G. Advances in research on cell models for skeletal muscle atrophy. Biomed Pharmacother 2023; 167:115517. [PMID: 37738794 DOI: 10.1016/j.biopha.2023.115517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 09/07/2023] [Accepted: 09/13/2023] [Indexed: 09/24/2023] Open
Abstract
Skeletal muscle, the largest organ in the human body, plays a crucial role in supporting and defending the body and is essential for movement. It also participates in regulating the processes of protein synthesis and degradation. Inhibition of protein synthesis and activation of degradation metabolism can both lead to the development of skeletal muscle atrophy, a pathological condition characterized by a decrease in muscle mass and fiber size. Many physiological and pathological conditions can cause a decline in muscle mass, but the underlying mechanisms of its pathogenesis remain incompletely understood, and the selection of treatment strategies and efficacy evaluations vary. Moreover, the early symptoms of this condition are often not apparent, making it easily overlooked in clinical practice. Therefore, it is necessary to develop and use cell models to understand the etiology and influencing factors of skeletal muscle atrophy. In this review, we summarize the methods used to construct skeletal muscle cell models, including hormone, inflammation, cachexia, genetic engineering, drug, and physicochemical models. We also analyze, compare, and evaluate the various construction and assessment methods.
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Affiliation(s)
- Liwei Li
- Guangdong Medical University, Wenming East Road 2, Xiashan District, Zhanjiang 524000, Guangdong, China
| | - Chunman Huang
- Guangdong Medical University, Wenming East Road 2, Xiashan District, Zhanjiang 524000, Guangdong, China
| | - Jingqun Pang
- Guangdong Medical University, Wenming East Road 2, Xiashan District, Zhanjiang 524000, Guangdong, China
| | - Yongbin Huang
- Guangdong Medical University, Wenming East Road 2, Xiashan District, Zhanjiang 524000, Guangdong, China
| | - Xinxin Chen
- Institute of Health Promotion and Medical Communication Studies, Affliated Hospital of Guangdong Medical University, South Renmin Road 57, Xiashan District, Zhanjiang 524000, Guangdong, China
| | - Guanghua Chen
- Orthopaedic Center, Affliated Hospital of Guangdong Medical University, South Renmin Road 57, Xiashan District, Zhanjiang 524000, Guangdong, China.
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Gupta P, Kaur N, Kumar V, Gupta A, Gupta S, Dua A, Injeti E, Mittal A. Evaluation of cinnamaldehyde derivatives as potential protective agents against oxidative-stress induced myotube atrophy using chemical, biological and computational analysis. Bioorg Chem 2023; 139:106661. [PMID: 37354662 DOI: 10.1016/j.bioorg.2023.106661] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2023] [Revised: 05/14/2023] [Accepted: 06/06/2023] [Indexed: 06/26/2023]
Abstract
Skeletal muscle atrophy, associated with increased morbidity, mortality and poor quality of life, is a metabolic disorder with no FDA approved drug. Oxidative stress is one of the key mediators of atrophy that influences various cell signaling molecules. The goal of this study is to identify potential antioxidant agents that could be used to treat atrophy. In this study in vitro and in situ screening of different cinnamaldehyde (CNA) derivatives for their antioxidant effects was done along with computational analysis to understand the relationship between their chemical structure and biological activity. Data show that 2-hydroxycinnamaldehyde (2HCNA) worked better than other CNA analogues at physiological pH, while 4-Fluoro-2-methoxycinnamaldehyde (4FoCNA) showed the maximum antioxidant activity under acidic conditions. However, these derivatives (2HCNA and 4FoCNA) were found to be toxic to the cultured myotubes (mature myofiber) under both physiological and pathophysiological conditions. Immunofluorescence, bright-field microscopic and biochemical studies conducted using live C2C12 cells showed that pre-incubation with other CNA analogues i.e. 2-methoxycinnamaldehyde (2MeCNA) and 2-benzyloxycinnamaldehyde (2BzCNA) not only maintained the normal morphology of myotubes but also protected them from H2O2-induced atrophy. These compounds (2MeCNA and 2BzCNA) showed higher stability and antioxidant potential, as indicated by computer simulation data analyzed by Density Functional Theory (DFT) based molecular modeling. Overall, the chemical, biological, and computational studies reveal the therapeutic potential of CNA analogues (BzCNA and MeCNA) against oxidative-stress induced muscle atrophy in C2C12 cells.
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Affiliation(s)
- Prachi Gupta
- Skeletal Muscle Laboratory, Institute of Integrated and Honors Studies, Kurukshetra University, Kurukshetra, Haryana 136119, India
| | - Nirmaljeet Kaur
- Skeletal Muscle Laboratory, Institute of Integrated and Honors Studies, Kurukshetra University, Kurukshetra, Haryana 136119, India
| | - Vinod Kumar
- Department of Chemistry, Central University, Mahendergarh, Haryana, India
| | - Amit Gupta
- Department of Chemistry, Dronacharya Government College, Gurugram, Haryana, India
| | - Sanjeev Gupta
- Skeletal Muscle Laboratory, Institute of Integrated and Honors Studies, Kurukshetra University, Kurukshetra, Haryana 136119, India
| | - Anita Dua
- Skeletal Muscle Laboratory, Institute of Integrated and Honors Studies, Kurukshetra University, Kurukshetra, Haryana 136119, India
| | - Elisha Injeti
- Department of Pharmaceutical Sciences, Cedarville University School of Pharmacy, Cedarville, OH, USA
| | - Ashwani Mittal
- Skeletal Muscle Laboratory, Institute of Integrated and Honors Studies, Kurukshetra University, Kurukshetra, Haryana 136119, India.
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Silver, Copper, Magnesium and Zinc Contained Electroactive Mesoporous Bioactive S53P4 Glass–Ceramics Nanoparticle for Bone Regeneration: Bioactivity, Biocompatibility and Antibacterial Activity. J Inorg Organomet Polym Mater 2022. [DOI: 10.1007/s10904-022-02295-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Nutraceuticals in the Prevention and Treatment of the Muscle Atrophy. Nutrients 2021; 13:nu13061914. [PMID: 34199575 PMCID: PMC8227811 DOI: 10.3390/nu13061914] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Revised: 05/30/2021] [Accepted: 05/31/2021] [Indexed: 12/15/2022] Open
Abstract
Imbalance of protein homeostasis, with excessive protein degradation compared with protein synthesis, leads to the development of muscle atrophy resulting in a decrease in muscle mass and consequent muscle weakness and disability. Potential triggers of muscle atrophy include inflammation, malnutrition, aging, cancer, and an unhealthy lifestyle such as sedentariness and high fat diet. Nutraceuticals with preventive and therapeutic effects against muscle atrophy have recently received increasing attention since they are potentially more suitable for long-term use. The implementation of nutraceutical intervention might aid in the development and design of precision medicine strategies to reduce the burden of muscle atrophy. In this review, we will summarize the current knowledge on the importance of nutraceuticals in the prevention of skeletal muscle mass loss and recovery of muscle function. We also highlight the cellular and molecular mechanisms of these nutraceuticals and their possible pharmacological use, which is of great importance for the prevention and treatment of muscle atrophy.
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10
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Efficient and modified 2-NBDG assay to measure glucose uptake in cultured myotubes. J Pharmacol Toxicol Methods 2021; 109:107069. [PMID: 33892108 DOI: 10.1016/j.vascn.2021.107069] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2020] [Revised: 04/12/2021] [Accepted: 04/16/2021] [Indexed: 12/23/2022]
Abstract
Under type-2 diabetes, insulin resistance develops in skeletal muscles as a key defect and to study the disorder, its manifestation, and possible solution, measurement of glucose uptake is a fundamental necessity. Of various approaches (i.e. scintillation counting, flow cytometry, fluorometry and spectrophotometry) fluorescent labelled glucose analogue, 2-NBDG solution is the most popular one. Although 2-NBDG based assay is the most widely used approach in various cells including skeletal muscle, even then all available protocols possess huge variability which impacts the overall data reproducibility. Moreover, starvation (use of glucose/serum free medium), one of the prerequisite condition for glucose uptake assay, itself induces stress specifically during longer pre-incubation periods and alters muscle cell metabolism and morphology, but the fact has not been duly considered. Therefore in the present article, using specific skeletal muscle cells i.e. C2C12 myotubes, we have re-established the conditions like pre-incubation time period, concentrations of insulin, glucose and serum/BSA while maintaining the cultured myotubes in morphologically healthy state. Our lab standardized protocols were observed to be effective in studying insulin resistance condition induced by diverse stresses (oxidative & inflammation) in myotubes. Comparative study conducted with already established protocols demonstrates that the present method is more efficient, effective and better improvised for studying glucose uptake in C2C12.
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Brown JL, Lawrence MM, Ahn B, Kneis P, Piekarz KM, Qaisar R, Ranjit R, Bian J, Pharaoh G, Brown C, Peelor FF, Kinter MT, Miller BF, Richardson A, Van Remmen H. Cancer cachexia in a mouse model of oxidative stress. J Cachexia Sarcopenia Muscle 2020; 11:1688-1704. [PMID: 32918528 PMCID: PMC7749559 DOI: 10.1002/jcsm.12615] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Revised: 06/03/2020] [Accepted: 07/07/2020] [Indexed: 01/21/2023] Open
Abstract
BACKGROUND Cancer is associated with muscle atrophy (cancer cachexia) that is linked to up to 40% of cancer-related deaths. Oxidative stress is a critical player in the induction and progression of age-related loss of muscle mass and weakness (sarcopenia); however, the role of oxidative stress in cancer cachexia has not been defined. The purpose of this study was to examine if elevated oxidative stress exacerbates cancer cachexia. METHODS Cu/Zn superoxide dismutase knockout (Sod1KO) mice were used as an established mouse model of elevated oxidative stress. Cancer cachexia was induced by injection of one million Lewis lung carcinoma (LLC) cells or phosphate-buffered saline (saline) into the hind flank of female wild-type mice or Sod1KO mice at approximately 4 months of age. The tumour developed for 3 weeks. Muscle mass, contractile function, neuromuscular junction (NMJ) fragmentation, metabolic proteins, mitochondrial function, and motor neuron function were measured in wild-type and Sod1KO saline and tumour-bearing mice. Data were analysed by two-way ANOVA with Tukey-Kramer post hoc test when significant F ratios were determined and α was set at 0.05. Unless otherwise noted, results in abstract are mean ±SEM. RESULTS Muscle mass and cross-sectional area were significantly reduced, in tumour-bearing mice. Metabolic enzymes were dysregulated in Sod1KO mice and cancer exacerbated this phenotype. NMJ fragmentation was exacerbated in tumour-bearing Sod1KO mice. Myofibrillar protein degradation increased in tumour-bearing wild-type mice (wild-type saline, 0.00847 ± 0.00205; wildtype LLC, 0.0211 ± 0.00184) and tumour-bearing Sod1KO mice (Sod1KO saline, 0.0180 ± 0.00118; Sod1KO LLC, 0.0490 ± 0.00132). Muscle mitochondrial oxygen consumption was reduced in tumour-bearing mice compared with saline-injected wild-type mice. Mitochondrial protein degradation increased in tumour-bearing wild-type mice (wild-type saline, 0.0204 ± 0.00159; wild-type LLC, 0.167 ± 0.00157) and tumour-bearing Sod1KO mice (Sod1KO saline, 0.0231 ± 0.00108; Sod1 KO LLC, 0.0645 ± 0.000631). Sciatic nerve conduction velocity was decreased in tumour-bearing wild-type mice (wild-type saline, 38.2 ± 0.861; wild-type LLC, 28.8 ± 0.772). Three out of eleven of the tumour-bearing Sod1KO mice did not survive the 3-week period following tumour implantation. CONCLUSIONS Oxidative stress does not exacerbate cancer-induced muscle loss; however, cancer cachexia may accelerate NMJ disruption.
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Affiliation(s)
- Jacob L Brown
- Aging and Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, USA
| | - Marcus M Lawrence
- Aging and Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, USA
| | - Bumsoo Ahn
- Aging and Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, USA
| | - Parker Kneis
- Aging and Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, USA
| | - Katarzyna M Piekarz
- Aging and Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, USA.,Oklahoma Center for Neuroscience, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Rizwan Qaisar
- Aging and Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, USA
| | - Rojina Ranjit
- Aging and Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, USA
| | - Jan Bian
- Aging and Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, USA
| | - Gavin Pharaoh
- Aging and Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, USA
| | - Chase Brown
- Aging and Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, USA
| | - Fredrick F Peelor
- Aging and Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, USA
| | - Michael T Kinter
- Aging and Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, USA
| | - Benjamin F Miller
- Aging and Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, USA
| | - Arlan Richardson
- Oklahoma City VA Medical Center, Oklahoma City, OK, USA.,Reynolds Center for Aging Research, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Holly Van Remmen
- Aging and Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, USA.,Oklahoma City VA Medical Center, Oklahoma City, OK, USA.,Oklahoma Center for Neuroscience, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
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12
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Huang Z, Zhong L, Zhu J, Xu H, Ma W, Zhang L, Shen Y, Law BYK, Ding F, Gu X, Sun H. Inhibition of IL-6/JAK/STAT3 pathway rescues denervation-induced skeletal muscle atrophy. ANNALS OF TRANSLATIONAL MEDICINE 2020; 8:1681. [PMID: 33490193 PMCID: PMC7812230 DOI: 10.21037/atm-20-7269] [Citation(s) in RCA: 54] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Background The molecular mechanisms underlying denervated skeletal muscle atrophy with concomitant muscle mass loss have not been fully elucidated. Therefore, this study aimed to attain a deeper understanding of the molecular mechanisms underlying denervated skeletal muscle atrophy as a critical step to developing targeted therapy and retarding the concomitant loss of skeletal muscle mass. Methods We employed microarray analysis to reveal the potential molecular mechanisms underlying denervated skeletal muscle atrophy. We used in vitro and in vivo atrophy models to explore the roles of the interleukin 6 (IL-6), Janus kinase (JAK), and signal transducers and activators of transcription 3 (STAT3) in muscle atrophy. Results In this study, microarray analysis of the differentially expressed genes demonstrated that inflammation-related cytokines were markedly triggered and IL-6/JAK/STAT3 signaling pathway was strongly activated during denervated skeletal muscle atrophy. The high level of IL-6 enhanced C2C12 myotube atrophy through the activation of JAK/STAT3, while inhibiting JAK/STAT3 pathway by ruxolitinib (a JAK1/2 inhibitor) or C188-9 (a STAT3 inhibitor) significantly attenuated C2C12 myotube atrophy induced by IL-6. Pharmacological blocking of IL-6 by tocilizumab (antibody against IL-6 receptor) and pharmacological/genetic inhibition of JAK/STAT3 pathway by ruxolitinib/C188-9 (JAK/STAT3 inhibitor) and STAT3 short hairpin RNA (shRNA) lentivirus in tibialis anterior muscles could suppress muscle atrophy and inhibit mitophagy, and was accompanied by the decreased expression of atrophic genes (MuRF1 and MAFbx) and autophagy-related genes (PINK1, BNIP3, Beclin 1, ATG7, and LC3B). Conclusions Taken together, the results suggest that IL-6/JAK/STAT3 pathway may be a principal mediator in denervated skeletal muscle atrophy, meaning targeted therapy against IL-6/JAK/STAT3 pathway might have potential as a therapeutic strategy for prevention of skeletal muscle atrophy.
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Affiliation(s)
- Ziwei Huang
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, China
| | - Lou Zhong
- Department of Thoracic Surgery, Affiliated Hospital of Nantong University, Nantong, China
| | - Jianwei Zhu
- Department of Orthopedics, Affiliated Hospital of Nantong University, Nantong, China
| | - Hua Xu
- Department of Orthopedics, Affiliated Hospital of Nantong University, Nantong, China
| | - Wenjing Ma
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, China
| | - Lilei Zhang
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, China
| | - Yuntian Shen
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, China
| | - Betty Yuen-Kwan Law
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau, China
| | - Fei Ding
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, China
| | - Xiaosong Gu
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, China
| | - Hualin Sun
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, China
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13
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Hu R, Wang MQ, Liu LY, You HY, Wu XH, Liu YY, Wang YJ, Lu L, Xiao W, Wei LB. Calycosin inhibited autophagy and oxidative stress in chronic kidney disease skeletal muscle atrophy by regulating AMPK/SKP2/CARM1 signalling pathway. J Cell Mol Med 2020; 24:11084-11099. [PMID: 32910538 PMCID: PMC7576237 DOI: 10.1111/jcmm.15514] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2020] [Revised: 05/26/2020] [Accepted: 05/30/2020] [Indexed: 02/06/2023] Open
Abstract
Skeletal muscle atrophy is a common and serious complication of chronic kidney disease (CKD). Oxidative stress and autophagy are the primary molecular mechanisms involved in muscle atrophy. Calycosin, a major component of Radix astragali, exerts anti‐inflammatory, anti‐oxidative stress and anti‐autophagy effects. We investigated the effects and mechanisms of calycosin on skeletal muscle atrophy in vivo and in vitro. 5/6 nephrectomy (5/6 Nx) rats were used as a model of CKD. We evaluated bodyweight and levels of serum creatinine (SCr), blood urea nitrogen (BUN) and serum albumin (Alb). H&E staining, cell apoptosis, oxidative stress biomarkers, autophagosome and LC3A/B levels were performed and evaluated in skeletal muscle of CKD rat. Calycosin treatment improved bodyweight and renal function, alleviated muscle atrophy (decreased the levels of MuRF1 and MAFbx), increased superoxide dismutase (SOD), catalase (CAT), and glutathione peroxidase (GSH‐Px) activity and reduced malondialdehyde (MDA) levels in skeletal muscle of CKD rats. Importantly, calycosin reduced autophagosome formation, down‐regulated the expression of LC3A/B and ATG7 through inhibition of AMPK and FOXO3a, and increased SKP2, which resulted in decreased expression of CARM1, H3R17me2a. Similar results were observed in C2C12 cells treated with TNF‐α and calycosin. Our findings showed that calycosin inhibited oxidative stress and autophagy in CKD induced skeletal muscle atrophy and in TNF‐α‐induced C2C12 myotube atrophy, partially by regulating the AMPK/SKP2/CARM1 signalling pathway.
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Affiliation(s)
- Rong Hu
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China.,Shenzhen Hospital, Southern Medical University, Shenzhen, China
| | - Ming-Qing Wang
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China.,Shenzhen Hospital, Southern Medical University, Shenzhen, China
| | - Ling-Yu Liu
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China.,Shenzhen Hospital, Southern Medical University, Shenzhen, China
| | - Hai-Yan You
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China.,Shenzhen Hospital, Southern Medical University, Shenzhen, China
| | - Xiao-Hui Wu
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China.,Shenzhen Hospital, Southern Medical University, Shenzhen, China
| | - Yang-Yang Liu
- Zhongshan Huangpu People's Hospital, Zhongshan, China
| | - Yan-Jing Wang
- Zhujiang Hospital of Southern Medical University, Guangzhou, China
| | - Lu Lu
- The First Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Wei Xiao
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Lian-Bo Wei
- Shenzhen Hospital, Southern Medical University, Shenzhen, China
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14
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Pekoglu E, Buyukakilli B, Turkseven CH, Balli E, Bayrak G, Cimen B, Balci S. Effects of Trans-Cinnamaldehyde on Reperfused Ischemic Skeletal Muscle and the Relationship to Laminin. J INVEST SURG 2020; 34:1329-1338. [PMID: 32752972 DOI: 10.1080/08941939.2020.1802538] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
PURPOSE Ischemia-reperfusion (I-R) injury is a serious problem caused by vascular trauma, tourniquet use and/or compartment syndrome. Studies have reported that skeletal muscle function is impaired due to the lower extremity I-R injury. There are insufficient studies on the treatment methods used for the recovery of dysfunction. This study is designed to investigate the effects of trans-cinnamaldehyde (TCA), a volatile oil of cinnamon structure, on the contractile dysfunction due to I-R injury of rat extensor-digitorum-longus (EDL) muscle. MATERIALS AND METHODS Sprague-Dawley rats were randomly divided into three groups. Except for the animals in the control group, all animals received saline (3-ml/kg) or TCA solution (30-mg/kg) which was administered orally three times with an 8-h interval before ischemia. After 24-hours, experimental groups were subjected to 3-h of lower extremity ischemia followed by 5-h reperfusion period. Then, the compound muscle action potential (CMAP) and mechanical activity of muscle were recorded using the standard electro-biophysical techniques. RESULTS There was a decrease in the maximum contractile force in I-R group compared to the control group (p < 0.05). Oxidative damage indicator (MDA) and antioxidant indicator (CAT) increased in the EDL muscle and serum samples in the I-R group (p < 0.05). Laminin expression showed a reduction in the I-R group (p < 0.05). It was seen that TCA achieve again the maximum contraction force in the EDL muscle (p < 0.05) and maintain the expression of laminin (p > 0.05). CONCLUSION We concluded that TCA has a potential protective effect with antioxidant effects against I-R injury and may maintain laminin levels.
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Affiliation(s)
- Esra Pekoglu
- Department of Biophysics, Faculty of Medicine, Mersin University, Mersin, Turkey
| | - Belgin Buyukakilli
- Department of Biophysics, Faculty of Medicine, Mersin University, Mersin, Turkey
| | | | - Ebru Balli
- Department of Histology & Embryology, Faculty of Medicine, Mersin University, Mersin, Turkey
| | - Gulsen Bayrak
- Department of Histology & Embryology, Faculty of Medicine, Mersin University, Mersin, Turkey
| | - Burak Cimen
- Department of Biochemistry, Faculty of Medicine, Mersin University, Mersin, Turkey
| | - Senay Balci
- Department of Biochemistry, Faculty of Medicine, Mersin University, Mersin, Turkey
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15
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Stellavato A, Abate L, Vassallo V, Donniacuo M, Rinaldi B, Schiraldi C. An in vitro study to assess the effect of hyaluronan-based gels on muscle-derived cells: Highlighting a new perspective in regenerative medicine. PLoS One 2020; 15:e0236164. [PMID: 32760085 PMCID: PMC7410276 DOI: 10.1371/journal.pone.0236164] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Accepted: 06/30/2020] [Indexed: 02/07/2023] Open
Abstract
Hyaluronan (HA) is a nonsulfated glycosaminoglycan that has been widely used for biomedical applications. Here, we have analyzed the effect of HA on the rescue of primary cells under stress as well as its potential to recover muscle atrophy and validated the developed model in vitro using primary muscle cells derived from rats. The potentials of different HAs were elucidated through comparative analyses using pharmaceutical grade a) high (HHA) and b) low molecular weight (LHA) hyaluronans, c) hybrid cooperative complexes (HCC) of HA in three experimental set-ups. The cells were characterized based on the expression of myogenin, a muscle-specific biomarker, and the proliferation was analyzed using Time-Lapse Video Microscopy (TLVM). Cell viability in response to H2O2 challenge was evaluated by 3-[4,5-dimethylthiazole-2-yl]-2,5-diphenyltetrazolium bromide (MTT) assay, and the expression of the superoxide dismutase enzyme (SOD-2) was assessed by western blotting. Additionally, in order to establish an in vitro model of atrophy, muscle cells were treated with tumor necrosis factor-alpha (TNF-α), along with hyaluronans. The expression of Atrogin, MuRF-1, nuclear factor kappa-light-chain-enhancer of activated B-cells (NF-kB), and Forkhead-box-(Fox)-O-3 (FoxO3a) was evaluated by western blotting to elucidate the molecular mechanism of atrophy. The results showed that HCC and HHA increased cell proliferation by 1.15 and 2.3 folds in comparison to un-treated cells (control), respectively. Moreover, both pre- and post-treatments of HAs restored the cell viability, and the SOD-2 expression was found to be reduced by 1.5 fold in HA-treated cells as compared to the stressed condition. Specifically in atrophic stressed cells, HCC revealed a noteworthy beneficial effect on the myogenic biomarkers indicating that it could be used as a promising platform for tissue regeneration with specific attention to muscle cell protection against stressful agents.
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Affiliation(s)
- Antonietta Stellavato
- Department of Experimental Medicine, School of Medicine, University of Campania “Luigi Vanvitelli,” Via L. De Crecchio, Naples, Italy
- * E-mail: (CS); (AS)
| | - Lucrezia Abate
- Department of Experimental Medicine, School of Medicine, University of Campania “Luigi Vanvitelli,” Via L. De Crecchio, Naples, Italy
| | - Valentina Vassallo
- Department of Experimental Medicine, School of Medicine, University of Campania “Luigi Vanvitelli,” Via L. De Crecchio, Naples, Italy
| | - Maria Donniacuo
- Unit of Pharmacology, Department of Experimental Medicine, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Barbara Rinaldi
- Unit of Pharmacology, Department of Experimental Medicine, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Chiara Schiraldi
- Department of Experimental Medicine, School of Medicine, University of Campania “Luigi Vanvitelli,” Via L. De Crecchio, Naples, Italy
- * E-mail: (CS); (AS)
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16
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Gupta P, Dutt V, Kaur N, Kalra P, Gupta S, Dua A, Dabur R, Saini V, Mittal A. S-allyl cysteine: A potential compound against skeletal muscle atrophy. Biochim Biophys Acta Gen Subj 2020; 1864:129676. [PMID: 32649980 DOI: 10.1016/j.bbagen.2020.129676] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Revised: 06/03/2020] [Accepted: 06/25/2020] [Indexed: 12/12/2022]
Abstract
BACKGROUND Oxidative stress is crucial player in skeletal muscle atrophy pathogenesis. S-allyl cysteine (SAC), an organosulfur compound of Allium sativum, possesses broad-spectrum properties including immuno- and redox-modulatory impact. Considering the role of SAC in regulating redox balance, we hypothesize that SAC may have a protective role in oxidative-stress induced atrophy. METHODS C2C12 myotubes were treated with H2O2 (100 μM) in the presence or absence of SAC (200 μM) to study morphology, redox status, inflammatory cytokines and proteolytic systems using fluorescence microscopy, biochemical analysis, real-time PCR and immunoblotting approaches. The anti-atrophic potential of SAC was confirmed in denervation-induced atrophy model. RESULTS SAC pre-incubation (4 h) could protect the myotube morphology (i.e. length/diameter/fusion index) from atrophic effects of H2O2. Lower levels of ROS, lipid peroxidation, oxidized glutathione and altered antioxidant enzymes were observed in H2O2-exposed cells upon pre-treatment with SAC. SAC supplementation also suppressed the rise in cytokines levels (TWEAK/IL6/myostatin) caused by H2O2. SAC treatment also moderated the degradation of muscle-specific proteins (MHCf) in the H2O2-treated myotubes supported by lower induction of diverse proteolytic systems (i.e. cathepsin, calpain, ubiquitin-proteasome E3-ligases, caspase-3, autophagy). Denervation-induced atrophy in mice illustrates that SAC administration alleviates the negative effects (i.e. mass loss, decreased cross-sectional area, up-regulation of proteolytic systems, and degradation of total/specific protein) of denervation on muscles. CONCLUSIONS SAC exerts significant anti-atrophic effects to protect myotubes from H2O2-induced protein loss and myofibers from denervation-induced muscle loss, due to the prevention of elevated proteolytic systems and inflammatory/oxidative molecules. GENERAL SIGNIFICANCE The results signify the potential of SAC against muscle atrophy.
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Affiliation(s)
- Prachi Gupta
- Skeletal Muscle Laboratory, Institute of Integrated and Honors Studies, Kurukshetra University, Kurukshetra, Haryana 136119, India
| | - Vikas Dutt
- Skeletal Muscle Laboratory, Institute of Integrated and Honors Studies, Kurukshetra University, Kurukshetra, Haryana 136119, India
| | - Nirmaljeet Kaur
- Skeletal Muscle Laboratory, Institute of Integrated and Honors Studies, Kurukshetra University, Kurukshetra, Haryana 136119, India
| | - Priya Kalra
- Laboratory of Infection Biology and Translational Research, Department of Biotechnology, All India Institute of Medical Sciences, New Delhi 110029, India
| | - Sanjeev Gupta
- Skeletal Muscle Laboratory, Institute of Integrated and Honors Studies, Kurukshetra University, Kurukshetra, Haryana 136119, India
| | - Anita Dua
- Skeletal Muscle Laboratory, Institute of Integrated and Honors Studies, Kurukshetra University, Kurukshetra, Haryana 136119, India
| | - Rajesh Dabur
- Biochemistry Department, MD University, Rohtak, Haryana 124001, India
| | - Vikram Saini
- Laboratory of Infection Biology and Translational Research, Department of Biotechnology, All India Institute of Medical Sciences, New Delhi 110029, India
| | - Ashwani Mittal
- Skeletal Muscle Laboratory, Institute of Integrated and Honors Studies, Kurukshetra University, Kurukshetra, Haryana 136119, India.
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17
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Mankhong S, Kim S, Moon S, Kwak HB, Park DH, Kang JH. Experimental Models of Sarcopenia: Bridging Molecular Mechanism and Therapeutic Strategy. Cells 2020; 9:E1385. [PMID: 32498474 PMCID: PMC7348939 DOI: 10.3390/cells9061385] [Citation(s) in RCA: 53] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 05/27/2020] [Accepted: 05/27/2020] [Indexed: 12/15/2022] Open
Abstract
Sarcopenia has been defined as a progressive decline of skeletal muscle mass, strength, and functions in elderly people. It is accompanied by physical frailty, functional disability, falls, hospitalization, and mortality, and is becoming a major geriatric disorder owing to the increasing life expectancy and growing older population worldwide. Experimental models are critical to understand the pathophysiology of sarcopenia and develop therapeutic strategies. Although its etiologies remain to be further elucidated, several mechanisms of sarcopenia have been identified, including cellular senescence, proteostasis imbalance, oxidative stress, and "inflammaging." In this article, we address three main aspects. First, we describe the fundamental aging mechanisms. Next, we discuss both in vitro and in vivo experimental models based on molecular mechanisms that have the potential to elucidate the biochemical processes integral to sarcopenia. The use of appropriate models to reflect sarcopenia and/or its underlying pathways will enable researchers to understand sarcopenia and develop novel therapeutic strategies for sarcopenia. Lastly, we discuss the possible molecular targets and the current status of drug candidates for sarcopenia treatment. In conclusion, the development of experimental models for sarcopenia is essential to discover molecular targets that are valuable as biochemical biomarkers and/or therapeutic targets for sarcopenia.
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Affiliation(s)
- Sakulrat Mankhong
- Department of Pharmacology, Hypoxia-related Disease Research Center, College of Medicine, Inha University, Incheon 22212, Korea; (S.M.); (S.K.); (S.M.)
| | - Sujin Kim
- Department of Pharmacology, Hypoxia-related Disease Research Center, College of Medicine, Inha University, Incheon 22212, Korea; (S.M.); (S.K.); (S.M.)
- Department of Kinesiology, Inha University, Incheon 22212, Korea; (H.-B.K.); (D.-H.P.)
- Institute of Sports & Arts Convergence (ISAC), Inha University, Incheon 22212, Korea
| | - Sohee Moon
- Department of Pharmacology, Hypoxia-related Disease Research Center, College of Medicine, Inha University, Incheon 22212, Korea; (S.M.); (S.K.); (S.M.)
| | - Hyo-Bum Kwak
- Department of Kinesiology, Inha University, Incheon 22212, Korea; (H.-B.K.); (D.-H.P.)
- Institute of Sports & Arts Convergence (ISAC), Inha University, Incheon 22212, Korea
| | - Dong-Ho Park
- Department of Kinesiology, Inha University, Incheon 22212, Korea; (H.-B.K.); (D.-H.P.)
- Institute of Sports & Arts Convergence (ISAC), Inha University, Incheon 22212, Korea
| | - Ju-Hee Kang
- Department of Pharmacology, Hypoxia-related Disease Research Center, College of Medicine, Inha University, Incheon 22212, Korea; (S.M.); (S.K.); (S.M.)
- Institute of Sports & Arts Convergence (ISAC), Inha University, Incheon 22212, Korea
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18
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Neto JGO, Boechat SK, Romão JS, Pazos-Moura CC, Oliveira KJ. Treatment with cinnamaldehyde reduces the visceral adiposity and regulates lipid metabolism, autophagy and endoplasmic reticulum stress in the liver of a rat model of early obesity. J Nutr Biochem 2019; 77:108321. [PMID: 31869758 DOI: 10.1016/j.jnutbio.2019.108321] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Revised: 11/18/2019] [Accepted: 12/06/2019] [Indexed: 12/11/2022]
Abstract
Nutrition at early stages of life contributes to the alarming incidence of childhood obesity, insulin resistance and hepatoesteatosis. Cinnamaldehyde, major component of cinnamon, increases insulin sensitivity and modulates adiposity and lipid metabolism. The aim of this study was to analyze the impact of cinnamaldehyde treatment during adolescence in a rat model of early obesity. Litter size reduction was used to induce overfeeding and early obesity. At postnatal day 30 (adolescence), the male Wistar rats received cinnamaldehyde by gavage (40 mg/kg of body weight/day) for 29 days and were studied at the end of treatment at 60 days old or 4 months thereafter (180 days old). At 60 days of age, the treatment with cinnamaldehyde promoted reduced visceral adiposity, serum triacylglycerol, and attenuation of energy efficiency and insulin resistance. In the liver, it reduced lipid synthesis, stimulated autophagy and reduced ER stress. At 180 days of age, animals treated with cinnamaldehyde during the adolescence exhibited normalization of visceral adiposity and energy efficiency, and attenuation of hyperphagia, serum hypertriglyceridemia and hepatic triacylglycerol content, with molecular markers indicative of reduced hepatic synthesis. However, the beneficial effect observed at 60 days of age on glucose homeostasis, autophagy and ER stress was lost. Therefore, the cinnamaldehyde supplementation during the adolescence has short- and long-term metabolic beneficial effects, highlighting its potential as an adjuvant in the treatment of early obesity.
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Affiliation(s)
- Jessika Geisebel Oliveira Neto
- Departamento de Fisiologia e Farmacologia, Universidade Federal Fluminense, Rua Hernani Pires de Melo, 101, São domingos, Niterói, 24210-130, RJ, Brazil
| | - Silvia Karl Boechat
- Departamento de Fisiologia e Farmacologia, Universidade Federal Fluminense, Rua Hernani Pires de Melo, 101, São domingos, Niterói, 24210-130, RJ, Brazil
| | - Juliana Santos Romão
- Departamento de Fisiologia e Farmacologia, Universidade Federal Fluminense, Rua Hernani Pires de Melo, 101, São domingos, Niterói, 24210-130, RJ, Brazil
| | - Carmen Cabanelas Pazos-Moura
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Centro de Ciências da Saúde, Ilha do Fundão, Rio de Janeiro,21949-900, RJ, Brazil
| | - Karen Jesus Oliveira
- Departamento de Fisiologia e Farmacologia, Universidade Federal Fluminense, Rua Hernani Pires de Melo, 101, São domingos, Niterói, 24210-130, RJ, Brazil; Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Centro de Ciências da Saúde, Ilha do Fundão, Rio de Janeiro,21949-900, RJ, Brazil.
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19
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Hsieh SK, Lin HY, Chen CJ, Jhuo CF, Liao KY, Chen WY, Tzen JTC. Promotion of myotube differentiation and attenuation of muscle atrophy in murine C2C12 myoblast cells treated with teaghrelin. Chem Biol Interact 2019; 315:108893. [PMID: 31706954 DOI: 10.1016/j.cbi.2019.108893] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Revised: 10/24/2019] [Accepted: 11/05/2019] [Indexed: 02/06/2023]
Abstract
This study aimed to investigate the effects of teaghrelin, an active ingredient of Chin-shin oolong tea, on murine C2C12 myoblast cells. Under high serum conditions, teaghrelin inhibited C2C12 cell proliferation, indicating a cell cycle arrest and cessation of proliferative progression. Teaghrelin promoted pro-differentiation of C2C12 cells as evidenced by a progressively elongated morphology, as well as the induction of muscle specific myogenin, myosin heavy chain (MHC), and MyoD. The formation of multinucleated myotubes, and the increase of MHC-positive immunoreactivity within the myotubes, further reflected a complete differentiation and maturation of the contractile skeletal muscle cells induced by teaghrelin. Like ghrelin, teaghrelin attenuated dexamethasone-decreased myotube diameter, indicating its protective effects against skeletal muscle atrophy. Additionally, the expressions of Atrogin-1 and MuRF-1 ubiquitin E3 ligase were reduced. In conclusion, the results highlight a possibility of developing teaghrelin as a functional food for the prevention or therapeutic treatment of disease-associated skeletal muscle atrophy.
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Affiliation(s)
- Sheng-Kuo Hsieh
- Graduate Institute of Biotechnology, National Chung Hsing University, Taichung, 402, Taiwan
| | - Hsin-Yi Lin
- Graduate Institute of Biotechnology, National Chung Hsing University, Taichung, 402, Taiwan
| | - Chun-Jung Chen
- Department of Medical Research, Taichung Veterans General Hospital, Taichung, 407, Taiwan
| | - Cian-Fen Jhuo
- Graduate Institute of Biotechnology, National Chung Hsing University, Taichung, 402, Taiwan
| | - Keng-Ying Liao
- Department of Veterinary Medicine, National Chung Hsing University, Taichung, 402, Taiwan
| | - Wen-Ying Chen
- Department of Veterinary Medicine, National Chung Hsing University, Taichung, 402, Taiwan.
| | - Jason T C Tzen
- Graduate Institute of Biotechnology, National Chung Hsing University, Taichung, 402, Taiwan.
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20
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Vitamin D Deficiency Is Associated with Muscle Atrophy and Reduced Mitochondrial Function in Patients with Chronic Low Back Pain. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2019; 2019:6835341. [PMID: 31281588 PMCID: PMC6589343 DOI: 10.1155/2019/6835341] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Accepted: 04/07/2019] [Indexed: 12/15/2022]
Abstract
Recent studies show that vitamin D deficiency may be responsible for muscle atrophy. The purpose of this study was to investigate markers of muscle atrophy, signalling proteins, and mitochondrial capacity in patients with chronic low back pain with a focus on gender and serum vitamin D level. The study involved patients with chronic low back pain (LBP) qualified for posterior lumbar interbody fusion (PLIF). Patients were divided into three groups: supplemented (SUPL) with vitamin D (3200 IU/day for 5 weeks), placebo with normal levels of vitamin D (SUF), and the placebo group with vitamin D deficiency (DEF). The marker of muscle atrophy including atrogin-1 and protein content for IGF-1, Akt, FOXO3a, PGC-1α, and citrate synthase (CS) activity were determined in collected multifidus muscle. In the paraspinal muscle, IGF-1 levels were higher in the SUF group as compared to both the SUPL and DEF groups (p < 0.05). In the SUPL group, we found significantly increased protein content for pAkt (p < 0.05) and decreased level of FOXO3a (p < 0.05). Atrogin-1 content was significantly different between men and women (p < 0.05). The protein content of PGC-1α was significantly higher in the SUF group as compared to the DEF group (p < 0.05). CS activity in the paraspinal muscle was higher in the SUPL group than in the DEF group (p < 0.05). Our results suggest that vitamin D deficiency is associated with elevated oxidative stress, muscle atrophy, and reduced mitochondrial function in the multifidus muscle. Therefore, vitamin D-deficient LBP patients might have reduced possibilities on early and effective rehabilitation after PLIF surgery.
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Liang T, Tao Q, Guan R, Cao G, Shen H, Liu Z, Xia Q. Antioxidant and Antiproliferative Activities of Cyanidin-3-O-Glucoside (C3G) Liposome in Caco-2 Cells Cultivated in 2D and 3D Cell Culture Models. J Food Sci 2019; 84:1638-1645. [PMID: 31141616 DOI: 10.1111/1750-3841.14629] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2019] [Revised: 03/27/2019] [Accepted: 04/04/2019] [Indexed: 01/09/2023]
Abstract
The aim of this study was to obtain adequate and detailed information about the antioxidant and antiproliferative activities of C3G and C3G liposomes in different cell culture models. The Caco-2 cells were cultured in 2D and 3D cell culture models, the H2 O2 was used to construct the cell damage model and then the cells treated with C3G and C3G liposomes. The antioxidant activity and antiproliferative activities of C3G liposomes on Caco-2 cells were investigated. We observed the morphology of cells and measured the cell viability, the activity of glutathione (GSH), superoxide dismutase (SOD), total antioxidant capacity (T-AOC), and the content of malondialdehyde (MDA) in Caco-2 cells treated with H2 O2 , C3G, and C3G liposomes. The results showed that the Caco-2 cells cultured in the 3D culture model formed a 3D structure and tight spheroids and showed the increase of cell activity in 3D cell culture model, compared with the 2D cell culture model. The C3G and C3G liposomes can enhance the activities of GSH, SOD, and T-AOC but decrease the MDA content after H2 O2 treatment, while the changes were different in 2D and 3D cells culture models. This study revealed that the results obtained from the 2D cell model may be inaccurate compared with the results obtained from the 3D cell model. PRACTICAL APPLICATION: The results of this study showed that the results obtained from the 2D cell model may be inaccurate compared with the results obtained from the 3D cell model. Our work provides a method for evaluating antioxidant activity of C3G liposomes in different cell models and provided certain theoretical basis for the follow-up research.
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Affiliation(s)
- Tisong Liang
- Zhejiang Provincial Key Laboratory of Biometrology and Inspection and Quarantine, China Jiliang Univ., Hangzhou, 310018, China
| | - Qingfeng Tao
- Zhejiang Provincial Key Laboratory of Biometrology and Inspection and Quarantine, China Jiliang Univ., Hangzhou, 310018, China
| | - Rongfa Guan
- Zhejiang Provincial Key Laboratory of Biometrology and Inspection and Quarantine, China Jiliang Univ., Hangzhou, 310018, China
| | - Guozhou Cao
- Ningbo Academy of Inspection and Quarantine, Ningbo Yingyi Road No.66 A Building Room 518, Nignbo, 315012, China
| | - Haitao Shen
- Zhejiang Provincial Center for Disease Control and Prevention, 3399 Binsheng Road, Hangzhou, 310051, China
| | - Zhenfeng Liu
- Chiatai Qingchunbao Pharmaceutical Co., Ltd., No. 551 Xixi Road, Hangzhou, 310023, China
| | - Qile Xia
- Food Science Inst., Zhejiang Academy of Agricultural Sciences, 298 Desheng Road, Hangzhou, 310021, China
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