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Liu C, Zhao Y, Liu J, Zhao Q. The causal effect of obesity on concomitant exotropia: A lifecourse Mendelian randomization study. Medicine (Baltimore) 2024; 103:e37348. [PMID: 38428888 PMCID: PMC10906616 DOI: 10.1097/md.0000000000037348] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Accepted: 02/02/2024] [Indexed: 03/03/2024] Open
Abstract
Obesity is now a significant global public health issue. Limited understanding exists regarding the association between obesity and concomitant exotropia. Our objective was to identify the causal relationship between lifecourse obesity, including birth weight, childhood body mass index (BMI), and adult BMI, and the risk of concomitant exotropia. We used a two-sample Mendelian randomization (MR) strategy to examine the causal relationship with inverse-variance weighted method as the primary MR analysis. We carried out sensitivity analyses to evaluate the accuracy and robustness of our findings. Also, we performed reverse-direction MR analysis to eliminate the possibility of reverse causality. Childhood BMI, as opposed to birth weight or adult BMI, had a significant impact on the risk of concomitant exotropia (odds ratio = 1.40, 95% confidence interval (CI): 1.08-1.81, P = .01). This significance persisted even after accounting for birth weight and adult BMI using multivariable MR analysis (odds ratio = 1.35, 95% CI: 1.04-1.75, P = .02). There was no significant heterogeneity or pleiotropy observed in sensitivity analyses (P > .05). Multivariable MR analysis further confirmed the absence of pleiotropic effects of some risk factors including prematurity, maternal smoking around birth and refractive error. Reverse causality did not affect the causal relationship (beta = -0.0244, 95% CI: -0.0545 to 0.0056, P = .11). Genetic predisposition to higher childhood BMI was found to be causally linked to an increased risk of concomitant exotropia.
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Affiliation(s)
- Changyang Liu
- Department of Ophthalmology, the Second Hospital of Dalian Medical University, Dalian, China
| | - Yaxin Zhao
- Department of Ophthalmology, the Second Hospital of Dalian Medical University, Dalian, China
| | - Jiasu Liu
- Department of Ophthalmology, the Second Hospital of Dalian Medical University, Dalian, China
| | - Qi Zhao
- Department of Ophthalmology, the Second Hospital of Dalian Medical University, Dalian, China
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2
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Chen X, Ji Y, Liu R, Zhu X, Wang K, Yang X, Liu B, Gao Z, Huang Y, Shen Y, Liu H, Sun H. Mitochondrial dysfunction: roles in skeletal muscle atrophy. J Transl Med 2023; 21:503. [PMID: 37495991 PMCID: PMC10373380 DOI: 10.1186/s12967-023-04369-z] [Citation(s) in RCA: 20] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Accepted: 07/18/2023] [Indexed: 07/28/2023] Open
Abstract
Mitochondria play important roles in maintaining cellular homeostasis and skeletal muscle health, and damage to mitochondria can lead to a series of pathophysiological changes. Mitochondrial dysfunction can lead to skeletal muscle atrophy, and its molecular mechanism leading to skeletal muscle atrophy is complex. Understanding the pathogenesis of mitochondrial dysfunction is useful for the prevention and treatment of skeletal muscle atrophy, and finding drugs and methods to target and modulate mitochondrial function are urgent tasks in the prevention and treatment of skeletal muscle atrophy. In this review, we first discussed the roles of normal mitochondria in skeletal muscle. Importantly, we described the effect of mitochondrial dysfunction on skeletal muscle atrophy and the molecular mechanisms involved. Furthermore, the regulatory roles of different signaling pathways (AMPK-SIRT1-PGC-1α, IGF-1-PI3K-Akt-mTOR, FoxOs, JAK-STAT3, TGF-β-Smad2/3 and NF-κB pathways, etc.) and the roles of mitochondrial factors were investigated in mitochondrial dysfunction. Next, we analyzed the manifestations of mitochondrial dysfunction in muscle atrophy caused by different diseases. Finally, we summarized the preventive and therapeutic effects of targeted regulation of mitochondrial function on skeletal muscle atrophy, including drug therapy, exercise and diet, gene therapy, stem cell therapy and physical therapy. This review is of great significance for the holistic understanding of the important role of mitochondria in skeletal muscle, which is helpful for researchers to further understanding the molecular regulatory mechanism of skeletal muscle atrophy, and has an important inspiring role for the development of therapeutic strategies for muscle atrophy targeting mitochondria in the future.
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Affiliation(s)
- Xin Chen
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Department of Neurology, Affiliated Hospital of Nantong University, Nantong University, Nantong, 226001, Jiangsu, People's Republic of China
| | - Yanan Ji
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Department of Neurology, Affiliated Hospital of Nantong University, Nantong University, Nantong, 226001, Jiangsu, People's Republic of China
| | - Ruiqi Liu
- Department of Clinical Medicine, Medical College, Nantong University, Nantong, Jiangsu, 226001, People's Republic of China
| | - Xucheng Zhu
- Department of Clinical Medicine, Medical College, Nantong University, Nantong, Jiangsu, 226001, People's Republic of China
| | - Kexin Wang
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Department of Neurology, Affiliated Hospital of Nantong University, Nantong University, Nantong, 226001, Jiangsu, People's Republic of China
| | - Xiaoming Yang
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Department of Neurology, Affiliated Hospital of Nantong University, Nantong University, Nantong, 226001, Jiangsu, People's Republic of China
| | - Boya Liu
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Department of Neurology, Affiliated Hospital of Nantong University, Nantong University, Nantong, 226001, Jiangsu, People's Republic of China
| | - Zihui Gao
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Department of Neurology, Affiliated Hospital of Nantong University, Nantong University, Nantong, 226001, Jiangsu, People's Republic of China
| | - Yan Huang
- Department of Clinical Medicine, Medical College, Nantong University, Nantong, Jiangsu, 226001, People's Republic of China
| | - Yuntian Shen
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Department of Neurology, Affiliated Hospital of Nantong University, Nantong University, Nantong, 226001, Jiangsu, People's Republic of China.
| | - Hua Liu
- Department of Orthopedics, Haian Hospital of Traditional Chinese Medicine, 55 Ninghai Middle Road, Nantong, Jiangsu, 226600, People's Republic of China.
| | - Hualin Sun
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Department of Neurology, Affiliated Hospital of Nantong University, Nantong University, Nantong, 226001, Jiangsu, People's Republic of China.
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Prakasam R, Bonadiman A, Andreotti R, Zuccaro E, Dalfovo D, Marchioretti C, Tripathy D, Petris G, Anderson EN, Migazzi A, Tosatto L, Cereseto A, Battaglioli E, Sorarù G, Lim WF, Rinaldi C, Sambataro F, Pourshafie N, Grunseich C, Romanel A, Pandey UB, Contestabile A, Ronzitti G, Basso M, Pennuto M. LSD1/PRMT6-targeting gene therapy to attenuate androgen receptor toxic gain-of-function ameliorates spinobulbar muscular atrophy phenotypes in flies and mice. Nat Commun 2023; 14:603. [PMID: 36746939 PMCID: PMC9902531 DOI: 10.1038/s41467-023-36186-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Accepted: 01/19/2023] [Indexed: 02/08/2023] Open
Abstract
Spinobulbar muscular atrophy (SBMA) is caused by CAG expansions in the androgen receptor gene. Androgen binding to polyQ-expanded androgen receptor triggers SBMA through a combination of toxic gain-of-function and loss-of-function mechanisms. Leveraging cell lines, mice, and patient-derived specimens, we show that androgen receptor co-regulators lysine-specific demethylase 1 (LSD1) and protein arginine methyltransferase 6 (PRMT6) are overexpressed in an androgen-dependent manner specifically in the skeletal muscle of SBMA patients and mice. LSD1 and PRMT6 cooperatively and synergistically transactivate androgen receptor, and their effect is enhanced by expanded polyQ. Pharmacological and genetic silencing of LSD1 and PRMT6 attenuates polyQ-expanded androgen receptor transactivation in SBMA cells and suppresses toxicity in SBMA flies, and a preclinical approach based on miRNA-mediated silencing of LSD1 and PRMT6 attenuates disease manifestations in SBMA mice. These observations suggest that targeting overexpressed co-regulators can attenuate androgen receptor toxic gain-of-function without exacerbating loss-of-function, highlighting a potential therapeutic strategy for patients with SBMA.
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Affiliation(s)
- Ramachandran Prakasam
- Dulbecco Telethon Institute at the Department of Cellular, Computational and Integrative Biology, University of Trento, Trento, Italy
| | - Angela Bonadiman
- Department of Cellular, Computational and Integrative Biology, University of Trento, Trento, Italy
| | - Roberta Andreotti
- Department of Biomedical Sciences, University of Padova, Padova, Italy
- Veneto Institute of Molecular Medicine, Padova, Italy
- Padova Neuroscience Center, Padova, Italy
| | - Emanuela Zuccaro
- Department of Biomedical Sciences, University of Padova, Padova, Italy
- Veneto Institute of Molecular Medicine, Padova, Italy
- Padova Neuroscience Center, Padova, Italy
| | - Davide Dalfovo
- Department of Cellular, Computational and Integrative Biology, University of Trento, Trento, Italy
| | - Caterina Marchioretti
- Department of Biomedical Sciences, University of Padova, Padova, Italy
- Veneto Institute of Molecular Medicine, Padova, Italy
- Padova Neuroscience Center, Padova, Italy
| | - Debasmita Tripathy
- Department of Cellular, Computational and Integrative Biology, University of Trento, Trento, Italy
| | - Gianluca Petris
- Department of Cellular, Computational and Integrative Biology, University of Trento, Trento, Italy
- Medical Research Council Laboratory of Molecular Biology, Cambridge, UK
- Wellcome Sanger Institute, Wellcome Trust Genome Campus, Hinxton, Saffron Walden, UK
| | - Eric N Anderson
- Department of Pediatrics, Children's Hospital of Pittsburgh, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Alice Migazzi
- Dulbecco Telethon Institute at the Department of Cellular, Computational and Integrative Biology, University of Trento, Trento, Italy
- Department of Cellular, Computational and Integrative Biology, University of Trento, Trento, Italy
| | - Laura Tosatto
- Dulbecco Telethon Institute at the Department of Cellular, Computational and Integrative Biology, University of Trento, Trento, Italy
| | - Anna Cereseto
- Department of Cellular, Computational and Integrative Biology, University of Trento, Trento, Italy
| | - Elena Battaglioli
- Department of Medical Biotechnology and Translational Medicine, University of Milan, Milan, Italy
| | - Gianni Sorarù
- Padova Neuroscience Center, Padova, Italy
- Department of Neuroscience, University of Padova, Padova, Italy
| | - Wooi Fang Lim
- MDUK Oxford Neuromuscular Centre, University of Oxford, Oxford, UK
- Institute of Developmental and Regenerative Medicine, Department of Paediatrics, University of Oxford, Oxford, UK
| | - Carlo Rinaldi
- MDUK Oxford Neuromuscular Centre, University of Oxford, Oxford, UK
- Institute of Developmental and Regenerative Medicine, Department of Paediatrics, University of Oxford, Oxford, UK
| | - Fabio Sambataro
- Padova Neuroscience Center, Padova, Italy
- Department of Neuroscience, University of Padova, Padova, Italy
| | - Naemeh Pourshafie
- National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD, USA
| | - Christopher Grunseich
- National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD, USA
| | - Alessandro Romanel
- Department of Cellular, Computational and Integrative Biology, University of Trento, Trento, Italy
| | - Udai Bhan Pandey
- Department of Pediatrics, Children's Hospital of Pittsburgh, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | | | - Giuseppe Ronzitti
- Université Paris-Saclay, Univ Evry, Inserm, Genethon, Evry, France
- Genethon, 91000, Evry, France
| | - Manuela Basso
- Department of Cellular, Computational and Integrative Biology, University of Trento, Trento, Italy.
| | - Maria Pennuto
- Dulbecco Telethon Institute at the Department of Cellular, Computational and Integrative Biology, University of Trento, Trento, Italy.
- Department of Biomedical Sciences, University of Padova, Padova, Italy.
- Veneto Institute of Molecular Medicine, Padova, Italy.
- Padova Neuroscience Center, Padova, Italy.
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Aleo S, Pezzani L, Milani D, Pezzoli L, Marchisio P, Iascone M. SBIDDS Syndrome: A New Spoke of the Epigenetic Machinery Wheel. Mol Syndromol 2023; 13:543-550. [PMID: 36660030 PMCID: PMC9843552 DOI: 10.1159/000524844] [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: 07/23/2021] [Accepted: 04/30/2022] [Indexed: 01/22/2023] Open
Abstract
Introduction Mendelian disorders of the epigenetic machinery are a growing group of disorders exhibiting several overlapping clinical features that are probably due to common abnormalities at the epigenomic level, which lead to downstream convergence at the transcriptomic level. Case presentation Here, we report a new case of short stature, brachydactyly, intellectual developmental disability, and seizures (SBIDDS) syndrome with a severe ocular phenotype and hypogonadism. Conclusion Similarities and connections with other mendelian disorders of the epigenetic machinery are highlighted, confirming SBIDDS' enrolment as a new spoke of the epigenetic machinery wheel.
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Affiliation(s)
- Sebastiano Aleo
- Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico di Milano, Milano, Italy
| | - Lidia Pezzani
- Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico di Milano, Milano, Italy,Laboratorio di Genetica Medica, ASST Papa Giovanni XXIII, Bergamo, Italy
| | - Donatella Milani
- Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico di Milano, Milano, Italy,*Donatella Milani,
| | - Laura Pezzoli
- Laboratorio di Genetica Medica, ASST Papa Giovanni XXIII, Bergamo, Italy
| | - Paola Marchisio
- Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico di Milano, Milano, Italy,Università degli Studi di Milano Statale, Milano, Italy
| | - Maria Iascone
- Laboratorio di Genetica Medica, ASST Papa Giovanni XXIII, Bergamo, Italy
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5
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Shin JE, Jeon SH, Lee SJ, Choung SY. The Administration of Panax Ginseng Berry Extract Attenuates High-Fat-Diet-Induced Sarcopenic Obesity in C57BL/6 Mice. Nutrients 2022; 14:nu14091747. [PMID: 35565712 PMCID: PMC9099595 DOI: 10.3390/nu14091747] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2022] [Revised: 04/14/2022] [Accepted: 04/20/2022] [Indexed: 01/05/2023] Open
Abstract
Sarcopenia and obesity are serious health problems that are highly related to several metabolic diseases. Sarcopenic obesity, a combined state of sarcopenia and obesity, results in higher risks of metabolic diseases and even mortality than sarcopenia or obesity alone. Therefore, the development of therapeutic agents for sarcopenic obesity is crucial. C57BL/6 mice were fed with a high-fat diet (HFD) for 9 weeks. Then, mice were administered with Panax ginseng berry extract (GBE) for an additional 4 weeks, with continuous HFD intake. GBE significantly decreased the food efficiency ratio, serum lipid and insulin levels, adipose tissue weights, and adipocyte size. It significantly increased the grip strength, muscle masses, and myofiber cross-sectional area. It deactivated the protein kinase C (PKC) theta and zeta, resulting in activation of the phosphoinositide 3-kinase (PI3K)/protein kinase B (Akt) pathway, which is known to regulate muscle synthesis and degradation. Furthermore, it inhibited the production of inflammatory cytokines in the muscle tissue. GBE attenuated both obesity and sarcopenia. Thus, GBE is a potential agent to prevent or treat sarcopenic obesity.
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Affiliation(s)
- Ji-Eun Shin
- Department of Life and Nanopharmaceutical Sciences, Graduate School, Kyung Hee University, Seoul 02447, Korea;
| | - So-Hyun Jeon
- Department of Biomedical and Pharmaceutical Sciences, Graduate School, Kyung Hee University, 26, Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Korea;
| | | | - Se-Young Choung
- Department of Life and Nanopharmaceutical Sciences, Graduate School, Kyung Hee University, Seoul 02447, Korea;
- Department of Biomedical and Pharmaceutical Sciences, Graduate School, Kyung Hee University, 26, Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Korea;
- Department of Preventive Pharmacy and Toxicology, College of Pharmacy, Kyung Hee University, 26, Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Korea
- Correspondence: ; Tel.: +82-2-961-9198; Fax: +82-2-961-0372
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Lee H, Ha TY, Jung CH, Nirmala FS, Park SY, Huh YH, Ahn J. Mitochondrial dysfunction in skeletal muscle contributes to the development of acute insulin resistance in mice. J Cachexia Sarcopenia Muscle 2021; 12:1925-1939. [PMID: 34605225 PMCID: PMC8718067 DOI: 10.1002/jcsm.12794] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Revised: 05/12/2021] [Accepted: 08/23/2021] [Indexed: 02/02/2023] Open
Abstract
BACKGROUND Although mounting evidence indicates that insulin resistance (IR) co-occurs with mitochondrial dysfunction in skeletal muscle, there is no clear causal link between mitochondrial dysfunction and IR pathogenesis. In this study, the exact role of mitochondria in IR development was determined. METHODS Six-week-old C57BL/6 mice were fed a high-fat diet for 2 weeks to induce acute IR or for 24 weeks to induce chronic IR (n = 8 per group). To characterize mitochondrial function, we measured citrate synthase activity, ATP content, mitochondrial DNA (mtDNA) content, and oxygen consumption rate in gastrocnemius and liver tissues. We intraperitoneally administered mitochondrial division inhibitor 1 (mdivi-1) to mice with acute IR and measured mitochondrial adaptive responses such as mitophagy, mitochondrial unfolded protein response (UPRmt), and oxidative stress (n = 6 per group). RESULTS Acute IR occurred coincidently with impaired mitochondrial function, including reduced citrate synthase activity (-37.8%, P < 0.01), ATP production (-88.0%, P < 0.01), mtDNA (-53.1%, P < 0.01), and mitochondrial respiration (-52.2% for maximal respiration, P < 0.05) in skeletal muscle but not in liver. Administration of mdivi-1 attenuated IR development by increasing mitochondrial function (+58.5% for mtDNA content, P < 0.01; 4.06 ± 0.69 to 5.84 ± 0.95 pmol/min/mg for citrate synthase activity, P < 0.05; 13.06 ± 0.70 to 34.87 ± 0.70 pmol/min/g for maximal respiration, P < 0.001). Western blot analysis showed acute IR resulted in increased autophagy (mitophagy) and UPRmt induction in muscle tissue. This adaptive response was inhibited by mdivi-1, which reduced the mitochondrial oxidative stress of skeletal muscle during acute IR. CONCLUSIONS Acute IR induced mitochondrial oxidative stress that impaired mitochondrial function in skeletal muscle. Improving mitochondrial function has important potential for treating acute IR.
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Affiliation(s)
- Hyunjung Lee
- Research Group of Natural Material and Metabolism, Korea Food Research Institute, Wanju, Republic of Korea
| | - Tae Youl Ha
- Research Group of Natural Material and Metabolism, Korea Food Research Institute, Wanju, Republic of Korea.,Department of Food Biotechnology, University of Science and Technology, Daejeon, Republic of Korea
| | - Chang Hwa Jung
- Research Group of Natural Material and Metabolism, Korea Food Research Institute, Wanju, Republic of Korea.,Department of Food Biotechnology, University of Science and Technology, Daejeon, Republic of Korea
| | - Farida Sukma Nirmala
- Research Group of Natural Material and Metabolism, Korea Food Research Institute, Wanju, Republic of Korea.,Department of Food Biotechnology, University of Science and Technology, Daejeon, Republic of Korea
| | - So-Young Park
- Department of Physiology, College of Medicine, Yeungnam University, Daegu, Republic of Korea
| | - Yang Hoon Huh
- Center for Electron Microscopy Research, Korea Basic Science Institute, Cheongju, Republic of Korea
| | - Jiyun Ahn
- Research Group of Natural Material and Metabolism, Korea Food Research Institute, Wanju, Republic of Korea.,Department of Food Biotechnology, University of Science and Technology, Daejeon, Republic of Korea
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7
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Zhou M, Johnston LJ, Wu C, Ma X. Gut microbiota and its metabolites: Bridge of dietary nutrients and obesity-related diseases. Crit Rev Food Sci Nutr 2021:1-18. [PMID: 34698581 DOI: 10.1080/10408398.2021.1986466] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
While the incidence of obesity keeps increasing in both adults and children worldwide, obesity and its complications remain major threatens to human health. Over the past decades, accumulating evidence has demonstrated the importance of microorganisms and their metabolites in the pathogenesis of obesity and related diseases. There also is a significant body of evidence validating the efficacy of microbial based therapies for managing various diseases. In this review, we collected the key information pertinent to obesity-related bacteria, fermentation substrates and major metabolites generated by studies involving humans and/or mice. We then briefly described the possible molecular mechanisms by which microorganisms cause or inhibit obesity with a focus on microbial metabolites. Lastly, we summarized the advantages and disadvantages of the utilization of probiotics, plant extracts, and exercise in controlling obesity. We speculated that new targets and combined approaches (e.g. diet combined with exercise) could lead to more precise prevention and/or alleviation of obesity in future clinical research implications.
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Affiliation(s)
- Min Zhou
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Lee J Johnston
- West Central Research & Outreach Center, University of Minnesota, Morris, Minnesota, USA
| | - Chaodong Wu
- Department of Nutrition and Food Science, Texas A&M University, College Station, TX, USA
| | - Xi Ma
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
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Jin H, Oh HJ, Nah SY, Lee BY. Gintonin-enriched fraction protects against sarcopenic obesity by promoting energy expenditure and attenuating skeletal muscle atrophy in high-fat diet-fed mice. J Ginseng Res 2021; 46:454-463. [PMID: 35600770 PMCID: PMC9120798 DOI: 10.1016/j.jgr.2021.10.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Revised: 08/09/2021] [Accepted: 10/06/2021] [Indexed: 02/06/2023] Open
Abstract
Background Gintonin-enriched fraction (GEF), a non-saponin fraction of ginseng, is a novel glycolipoprotein rich in hydrophobic amino acids. GEF has recently been shown to regulate lipid metabolism and browning in adipocytes; however, the mechanisms underlying its effects on energy metabolism and whether it affects sarcopenic obesity are unclear. We aimed to evaluate the effects of GEF on skeletal muscle atrophy in high-fat diet (HFD)-induced obese mice. Methods To examine the effect of GEF on sarcopenic obesity, 4-week-old male ICR mice were used. The mice were divided into four groups: chow diet (CD), HFD, HFD supplemented with 50 mg/kg/day GEF, or 150 mg/kg/day GEF for 6 weeks. We analyzed body mass gain and grip strength, histological staining, western blot analysis, and immunofluorescence to quantify changes in sarcopenic obesity-related factors. Results GEF inhibited body mass gain while HFD-fed mice gained 22.7 ± 2.0 g, whereas GEF-treated mice gained 14.3 ± 1.2 g for GEF50 and 11.8 ± 1.6 g for GEF150 by downregulating adipogenesis and inducing lipolysis and browning in white adipose tissue (WAT). GEF also enhanced mitochondrial biogenesis threefold in skeletal muscle. Furthermore, GEF-treated skeletal muscle exhibited decreased expression of muscle-specific atrophic genes, and promoted myogenic differentiation and increased muscle mass and strength in a dose-dependent manner (p < 0.05). Conclusion These findings indicate that GEF may have potential uses in preventing sarcopenic obesity by promoting energy expenditure and attenuating skeletal muscle atrophy.
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Affiliation(s)
- Heegu Jin
- Department of Food Science and Biotechnology, College of Life Science, CHA University, Seongnam, Gyeonggi, Republic of Korea
| | - Hyun-Ji Oh
- Department of Food Science and Biotechnology, College of Life Science, CHA University, Seongnam, Gyeonggi, Republic of Korea
| | - Seung-Yeol Nah
- Ginsentology Research Laboratory and Department of Physiology, College of Veterinary Medicine, Konkuk University, Seoul, Republic of Korea
| | - Boo-Yong Lee
- Department of Food Science and Biotechnology, College of Life Science, CHA University, Seongnam, Gyeonggi, Republic of Korea
- Corresponding author. Department of Food Science and Biotechnology, College of Life Science, CHA University, Seongnam, Gyeonggi, 13488, Republic of Korea.
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Wang Z, Zeng M, Wang Z, Qin F, Chen J, He Z. Dietary Luteolin: A Narrative Review Focusing on Its Pharmacokinetic Properties and Effects on Glycolipid Metabolism. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:1441-1454. [PMID: 33522240 DOI: 10.1021/acs.jafc.0c08085] [Citation(s) in RCA: 47] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Luteolin, a flavone subclass of flavonoids, is commonly found in food plants and has multiple biological activities. Recently, evidence is growing with regard to the potential of luteolin intake to beneficially affect glycolipid metabolism disorders (GLMDs), particularly insulin resistance, diabetes, and obesity. The aim of this contribution is to provide an overview of recent advances in identifying and understanding the pharmacokinetic properties (absorption, metabolism, and bioavailability) of luteolin, its regulatory effects on glycolipid metabolism, and the underlying mechanisms of action of luteolin in the brain, liver, adipose tissues, and other tissues/organs. Collectively, luteolin or its principal metabolites may contribute to counteracting GLMDs, especially for human obesity and diabetes.
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Affiliation(s)
- Zhenyu Wang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, People's Republic of China
- International Joint Laboratory on Food Safety, Jiangnan University, Wuxi, Jiangsu 214122, People's Republic of China
| | - Maomao Zeng
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, People's Republic of China
- International Joint Laboratory on Food Safety, Jiangnan University, Wuxi, Jiangsu 214122, People's Republic of China
| | - Zhaojun Wang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, People's Republic of China
- International Joint Laboratory on Food Safety, Jiangnan University, Wuxi, Jiangsu 214122, People's Republic of China
| | - Fang Qin
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, People's Republic of China
- International Joint Laboratory on Food Safety, Jiangnan University, Wuxi, Jiangsu 214122, People's Republic of China
| | - Jie Chen
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, People's Republic of China
- International Joint Laboratory on Food Safety, Jiangnan University, Wuxi, Jiangsu 214122, People's Republic of China
| | - Zhiyong He
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, People's Republic of China
- International Joint Laboratory on Food Safety, Jiangnan University, Wuxi, Jiangsu 214122, People's Republic of China
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Lee H, Kim YI, Nirmala FS, Jeong HY, Seo HD, Ha TY, Jung CH, Ahn J. Chrysanthemum zawadskil Herbich attenuates dexamethasone-induced muscle atrophy through the regulation of proteostasis and mitochondrial function. Biomed Pharmacother 2021; 136:111226. [PMID: 33485066 DOI: 10.1016/j.biopha.2021.111226] [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: 09/23/2020] [Revised: 12/29/2020] [Accepted: 12/31/2020] [Indexed: 12/18/2022] Open
Abstract
Chrysanthemum zawadskii Herbich (CZH) is used in traditional medicine to treat inflammatory diseases and diabetes. However, the effects of CZH on muscle wasting remains to be studied. Here, we investigated the effect of CZH on dexamethasone (DEX), a synthetic glucocorticoid, induced muscle atrophy. To examine the effect of CZH on muscle atrophy, C2C12 myotubes were co-treated with DEX and CZH for 24 h. The treatment with CZH prevented DEX-induced myotube atrophy in a dose-dependent manner. CZH inhibited the DEX-induced decrease of the MHC isoforms and the upregulation of atrogin-1 and MuRF1 in C2C12 differentiated cells. C57BL/6 mice were supplemented with 0.1 % CZH for 8 weeks, with DEX-induced muscle atrophy stimulated in the last 3 weeks. In the mice, CZH supplementation effectively reversed DEX-induced skeletal muscle atrophy and increased the exercise capacity of the mice through the inhibition of glucocorticoid receptor translocation. Additionally, we observed that DEX-evoked impaired proteostasis was ameliorated via the Akt/mTOR pathway. CZH also prevented the DEX-induced decrease in the mitochondrial respiration. HPLC analysis demonstrated the highest concentration of acacetin-7-O-β-d-rutinoside (AR) among 4 compounds. Moreover, AR, a functional compound of CZH, prevented DEX-evoked muscle atrophy. Thus, we suggest that CZH could be a potential therapeutic candidate against muscle atrophy and AR is the main functional compound of CZH.
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Affiliation(s)
- Hyunjung Lee
- Research Group of Natural Material and Metabolism, Korea Food Research Institute, Wanju, South Korea
| | - Young In Kim
- Research Group of Natural Material and Metabolism, Korea Food Research Institute, Wanju, South Korea; Department of Food Science and Technology, Jeonbuk National University, Jeonju-si, South Korea
| | - Farida S Nirmala
- Research Group of Natural Material and Metabolism, Korea Food Research Institute, Wanju, South Korea; Department of Food Biotechnology, University of Science and Technology, Daejeon, South Korea
| | - Hang Yeon Jeong
- Research Group of Natural Material and Metabolism, Korea Food Research Institute, Wanju, South Korea
| | - Hyo-Deok Seo
- Research Group of Natural Material and Metabolism, Korea Food Research Institute, Wanju, South Korea
| | - Tae Youl Ha
- Research Group of Natural Material and Metabolism, Korea Food Research Institute, Wanju, South Korea; Department of Food Biotechnology, University of Science and Technology, Daejeon, South Korea
| | - Chang Hwa Jung
- Research Group of Natural Material and Metabolism, Korea Food Research Institute, Wanju, South Korea; Department of Food Biotechnology, University of Science and Technology, Daejeon, South Korea
| | - Jiyun Ahn
- Research Group of Natural Material and Metabolism, Korea Food Research Institute, Wanju, South Korea; Department of Food Biotechnology, University of Science and Technology, Daejeon, South Korea.
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