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Alnimri F, Sivakumar J, Sutherland T, Johnson MA, Ward S, Chong L, Hii MW. Pre-operative low muscle mass is associated with major complications and lower recurrence-free survival after gastric cancer surgery. ANZ J Surg 2021; 91:316-322. [PMID: 33615671 DOI: 10.1111/ans.16590] [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] [Received: 07/17/2020] [Revised: 01/04/2021] [Accepted: 01/06/2021] [Indexed: 12/24/2022]
Abstract
BACKGROUND Low muscle mass (LMM) has been associated with post-operative morbidity. This study aimed to examine the relationship between pre-operative LMM and major post-operative complications and survival in patients undergoing curative resection for gastric cancer. METHODS A single-centre retrospective cohort study was conducted on consecutive patients who underwent surgical resection for gastric adenocarcinoma between 2008 and 2018. Patient demographics, radiological parameters, pathological data and complications were recorded. Skeletal muscle index was calculated using OsiriX software by manually measuring the cross-sectional skeletal muscle area at the third lumbar vertebra and correcting to the patient's height. Univariate and multivariate analyses were used to identify the risk factors associated with the outcomes. RESULTS A total of 62 patients (36 males, mean age 68.3 ± 1.5 years) met the inclusion criteria. Twenty-six (41.9%) patients had LMM pre-operatively. Demographic data in the non-LMM and LMM groups were equally matched except for body mass index (27.6 ± 0.8 kg/m2 versus 24.3 ± 1.1 kg/m2 ; P = 0.012) and serum albumin (36.7 ± 0.7 g/L versus 33.8 ± 1.0 g/L; P = 0.017), which were higher in the non-LMM. LMM was associated with higher incidence of total (35.5% versus 64.5%; P = 0.006), minor (40% versus 60%; P = 0.030), major (9.1% versus 90.9%; P = 0.004) post-operative complications and decreased recurrence-free survival (hazard ratio 2.29; 95% confidence interval 1.10-4.77; P = 0.027). CONCLUSION LMM is a significant independent risk factor for major post-operative complications and recurrence-free survival after gastrectomy. Pre-operative identification of LMM could be a useful tool for prognostication and may identify a group suitable for prehabilitation.
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Affiliation(s)
- Feras Alnimri
- Department of Hepatobiliary and Upper Gastrointestinal Surgery, St Vincent's Hospital Melbourne, Melbourne, Victoria, Australia
| | - Jonathan Sivakumar
- Department of Hepatobiliary and Upper Gastrointestinal Surgery, St Vincent's Hospital Melbourne, Melbourne, Victoria, Australia.,Department of Surgery, St Vincent's Hospital, The University of Melbourne, Melbourne, Victoria, Australia
| | - Tom Sutherland
- Department of Radiology, St Vincent's Hospital, The University of Melbourne, Melbourne, Victoria, Australia
| | - Mary A Johnson
- Department of Hepatobiliary and Upper Gastrointestinal Surgery, St Vincent's Hospital Melbourne, Melbourne, Victoria, Australia
| | - Salena Ward
- Department of Hepatobiliary and Upper Gastrointestinal Surgery, St Vincent's Hospital Melbourne, Melbourne, Victoria, Australia
| | - Lynn Chong
- Department of Hepatobiliary and Upper Gastrointestinal Surgery, St Vincent's Hospital Melbourne, Melbourne, Victoria, Australia.,Department of Surgery, St Vincent's Hospital, The University of Melbourne, Melbourne, Victoria, Australia
| | - Michael W Hii
- Department of Hepatobiliary and Upper Gastrointestinal Surgery, St Vincent's Hospital Melbourne, Melbourne, Victoria, Australia.,Department of Surgery, St Vincent's Hospital, The University of Melbourne, Melbourne, Victoria, Australia
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202
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Looijaard SMLM, Te Lintel Hekkert ML, Wüst RCI, Otten RHJ, Meskers CGM, Maier AB. Pathophysiological mechanisms explaining poor clinical outcome of older cancer patients with low skeletal muscle mass. Acta Physiol (Oxf) 2021; 231:e13516. [PMID: 32478975 PMCID: PMC7757176 DOI: 10.1111/apha.13516] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Revised: 05/25/2020] [Accepted: 05/25/2020] [Indexed: 12/14/2022]
Abstract
Low skeletal muscle mass is highly prevalent in older cancer patients and affects 5% to 89% depending on the type and stage of cancer. Low skeletal muscle mass is associated with poor clinical outcomes such as post-operative complications, chemotherapy toxicity and mortality in older cancer patients. Little is known about the mediating pathophysiological mechanisms. In this review, we summarize proposed pathophysiological mechanisms underlying the association between low skeletal muscle mass and poor clinical outcomes in older cancer patients including a) systemic inflammation; b) insulin-dependent glucose handling; c) mitochondrial function; d) protein status and; e) pharmacokinetics of anticancer drugs. The mechanisms of altered myokine balance negatively affecting the innate and adaptive immune system, and altered pharmacokinetics of anticancer drugs leading to a relative overdosage of anticancer drugs are best-substantiated. The effects of glucose intolerance and circulating mitochondrial DNA as a consequence of low skeletal muscle mass are topics of interest for future research. Restoring myokine balance through physical exercise, exercise mimetics, neuro-muscular activation and adapting anticancer drug dosing on skeletal muscle mass could be targeted approaches to improve clinical outcomes in older cancer patients with low skeletal muscle mass.
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Affiliation(s)
- Stéphanie M L M Looijaard
- Department of Human Movement Sciences, @AgeAmsterdam, Faculty of Behavioural and Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, The Netherlands
| | - Miriam L Te Lintel Hekkert
- Department of Human Movement Sciences, @AgeAmsterdam, Faculty of Behavioural and Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, The Netherlands
| | - Rob C I Wüst
- Department of Human Movement Sciences, @AgeAmsterdam, Faculty of Behavioural and Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, The Netherlands
| | - René H J Otten
- University Library, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Carel G M Meskers
- Department of Rehabilitation Medicine, Amsterdam University Medical Center, VU University Medical Center, Amsterdam Movement Sciences, Amsterdam, The Netherlands
| | - Andrea B Maier
- Department of Human Movement Sciences, @AgeAmsterdam, Faculty of Behavioural and Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, The Netherlands.,Department of Medicine and Aged Care, @AgeMelbourne, The Royal Melbourne Hospital, University of Melbourne, Melbourne, Australia
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203
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Koshizaka M, Ishikawa K, Ishibashi R, Takahashi S, Sakamoto K, Yokoh H, Baba Y, Ide S, Ide K, Ishikawa T, Onishi S, Kobayashi K, Takemoto M, Horikoshi T, Shimofusa R, Maezawa Y, Yokote K. Comparison of Visceral Fat Reduction by Ipragliflozin and Metformin in Elderly Type 2 Diabetes Patients: Sub-Analysis of a Randomized-Controlled Study. Diabetes Ther 2021; 12:183-196. [PMID: 33098565 PMCID: PMC7843837 DOI: 10.1007/s13300-020-00949-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Accepted: 10/14/2020] [Indexed: 12/12/2022] Open
Abstract
INTRODUCTION To compare the effects of ipragliflozin, a sodium-glucose transporter 2 inhibitor, with those of metformin on visceral fat (as well as muscles and bones) in Japanese elderly patients with type 2 diabetes (T2D), we conducted a sub-analysis of a prospective, multicenter, blinded-endpoint randomized-controlled study. METHODS In total, 103 patients with T2D (body mass index ≥ 22 kg/m2; glycated hemoglobin, 7-10%) and being treated with sitagliptin (a dipeptidyl peptidase-4 inhibitor) were included and randomized to receive ipragliflozin or metformin. The primary outcome was the change in visceral fat area measured using computed tomography 24 weeks following treatment. The secondary outcomes included changes in subcutaneous and total fat area, muscle volume, bone density measured using computed tomography, handgrip strength, bone markers, plasma glucose, insulin, homeostasis model assessment (HOMA)2-beta, HOMA2-R, glycated hemoglobin, lipid panel, uric acid, blood pressure, adiponectin, and high-sensitivity C-reactive protein. All patients aged 65-74 years were selected for sub-analysis. RESULTS The sub-analysis included 15 and 14 patients in the ipragliflozin and metformin groups, respectively. The patients' backgrounds were well balanced. Visceral fat area reduction was greater in the ipragliflozin group than in the metformin group (- 10.58% vs. - 6.93%; P = 0.034). There were significant differences in the changes in bone absorption markers, uric acid, and total cholesterol levels between the groups. CONCLUSION Ipragliflozin significantly reduced the visceral fat area compared with metformin when added to sitagliptin in elderly patients with T2D. Long-term and large-scale studies are required to elucidate whether ipragliflozin is suitable for elderly patients. TRIAL REGISTRATION The study was registered at https://www.umin.ac.jp/ctr/ (UMIN-ID: UMIN 000015170).
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Affiliation(s)
- Masaya Koshizaka
- Department of Diabetes, Metabolism and Endocrinology, Chiba University Hospital, 1-8-1 Inohana, Chuo-ku, Chiba City, Chiba, 260-8677, Japan.
- Department of Endocrinology, Hematology and Gerontology, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba City, Chiba, 260-8670, Japan.
| | - Ko Ishikawa
- Department of Diabetes, Metabolism and Endocrinology, Chiba University Hospital, 1-8-1 Inohana, Chuo-ku, Chiba City, Chiba, 260-8677, Japan
- Department of Endocrinology, Hematology and Gerontology, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba City, Chiba, 260-8670, Japan
| | - Ryoichi Ishibashi
- Department of Endocrinology, Hematology and Gerontology, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba City, Chiba, 260-8670, Japan
- Department of Medicine, Division of Diabetes,Endocrinology and Metabolism, Kimitsu Chuo Hospital, 1010 Sakurai, Kisarazu City, Chiba, 292-8535, Japan
| | - Sho Takahashi
- Clinical Research Support Center, The Jikei University School of Medicine, 3-25-8 Nishi-Shimbashi, Minato-ku, Tokyo, 105-8461, Japan
| | - Kenichi Sakamoto
- Department of Endocrinology, Hematology and Gerontology, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba City, Chiba, 260-8670, Japan
| | - Hidetaka Yokoh
- Department of Diabetes, Metabolism and Endocrinology, Chiba University Hospital, 1-8-1 Inohana, Chuo-ku, Chiba City, Chiba, 260-8677, Japan
- Department of Endocrinology, Hematology and Gerontology, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba City, Chiba, 260-8670, Japan
| | - Yusuke Baba
- Department of Diabetes, Metabolism and Endocrinology, Chiba University Hospital, 1-8-1 Inohana, Chuo-ku, Chiba City, Chiba, 260-8677, Japan
- Department of Endocrinology, Hematology and Gerontology, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba City, Chiba, 260-8670, Japan
| | - Shintaro Ide
- Department of Diabetes, Metabolism and Endocrinology, Chiba University Hospital, 1-8-1 Inohana, Chuo-ku, Chiba City, Chiba, 260-8677, Japan
- Department of Endocrinology, Hematology and Gerontology, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba City, Chiba, 260-8670, Japan
| | - Kana Ide
- Department of Diabetes, Metabolism and Endocrinology, Chiba University Hospital, 1-8-1 Inohana, Chuo-ku, Chiba City, Chiba, 260-8677, Japan
- Department of Endocrinology, Hematology and Gerontology, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba City, Chiba, 260-8670, Japan
| | - Takahiro Ishikawa
- Department of Endocrinology, Hematology and Gerontology, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba City, Chiba, 260-8670, Japan
- Geriatric Medical Center, Chiba University Hospital, 1-8-1 Inohana, Chuo-ku, Chiba City, Chiba, 260-8677, Japan
| | - Shunichiro Onishi
- Department of Diabetes and Metabolism, Asahi General Hospital, 1326 I, Asahi City, Chiba, 289-2511, Japan
- Department of Medicine, Division of Diabetes, Metabolism and Endocrinology, International University of Health and Welfare, 4-3 Kozunomori, Narita City, Chiba, 286-0048, Japan
| | - Kazuki Kobayashi
- Department of Endocrinology, Hematology and Gerontology, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba City, Chiba, 260-8670, Japan
- Department of Diabetes and Metabolism, Asahi General Hospital, 1326 I, Asahi City, Chiba, 289-2511, Japan
| | - Minoru Takemoto
- Department of Endocrinology, Hematology and Gerontology, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba City, Chiba, 260-8670, Japan
- Department of Medicine, Division of Diabetes, Metabolism and Endocrinology, International University of Health and Welfare, 4-3 Kozunomori, Narita City, Chiba, 286-0048, Japan
| | - Takuro Horikoshi
- Diagnostic Radiology and Radiation Oncology, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba City, Chiba, 260-8670, Japan
| | - Ryota Shimofusa
- Department of Radiology, Sannou Hospital, 166-2 Sannou-chou, Inage-ku, Chiba City, Chiba, 263-0002, Japan
| | - Yoshiro Maezawa
- Department of Diabetes, Metabolism and Endocrinology, Chiba University Hospital, 1-8-1 Inohana, Chuo-ku, Chiba City, Chiba, 260-8677, Japan
- Department of Endocrinology, Hematology and Gerontology, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba City, Chiba, 260-8670, Japan
| | - Koutaro Yokote
- Department of Diabetes, Metabolism and Endocrinology, Chiba University Hospital, 1-8-1 Inohana, Chuo-ku, Chiba City, Chiba, 260-8677, Japan
- Department of Endocrinology, Hematology and Gerontology, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba City, Chiba, 260-8670, Japan
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204
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Wang PY, Li Y, Wang Q. Sarcopenia: An underlying treatment target during the COVID-19 pandemic. Nutrition 2020; 84:111104. [PMID: 33421827 PMCID: PMC7833321 DOI: 10.1016/j.nut.2020.111104] [Citation(s) in RCA: 58] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Revised: 11/29/2020] [Accepted: 11/30/2020] [Indexed: 12/29/2022]
Abstract
The role of skeletal muscle mass in modulating immune response and supporting metabolic stress has been increasingly confirmed. Patients with sarcopenia, characterized by reduced muscle mass and muscle strength, were reported to have poor immune response and metabolic stress when facing acute infection, major surgeries, and other attacks. Based on empirical data, patients with sarcopenia are speculated to have increased infection rates and dismal prognoses amid the current 2019 novel coronavirus disease (COVID-19) epidemic. COVID-19 infection also aggravates sarcopenia because of the increased muscle wasting caused by systematic inflammation and the reduced physical activity and inadequate nutrient intake caused by social isolation. Notably, the interventions targeting skeletal muscle are anticipated to break the vicious circle and benefit the treatment of both conditions. We recommend sarcopenia assessment for populations with advanced age, inactivity, chronic disease, cancers, and nutritional deficiency. Patients with sarcopenia and COVID-19 infection need intensive care and aggressive treatments. The provision of at-home physical activities together with protein supplementation is anticipated to reverse sarcopenia and promote the prevention and treatment of COVID-19. The recommended protocols on nutritional support and physical activities are provided in detail.
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Affiliation(s)
- Pei-Yu Wang
- Department of Thoracic Surgery, Peking University People's Hospital, Beijing, China.
| | - Yin Li
- Department of Thoracic Surgical Oncology, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Qin Wang
- Department of Pediatrics, the First Affiliated Hospital of Zhengzhou University, Clinical Center of Pediatric Nephrology of Henan Province, Zhengzhou, Henan China
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205
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Kirwan R, McCullough D, Butler T, Perez de Heredia F, Davies IG, Stewart C. Sarcopenia during COVID-19 lockdown restrictions: long-term health effects of short-term muscle loss. GeroScience 2020; 42:1547-1578. [PMID: 33001410 PMCID: PMC7528158 DOI: 10.1007/s11357-020-00272-3] [Citation(s) in RCA: 176] [Impact Index Per Article: 44.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Accepted: 09/16/2020] [Indexed: 12/16/2022] Open
Abstract
The COVID-19 pandemic is an extraordinary global emergency that has led to the implementation of unprecedented measures in order to stem the spread of the infection. Internationally, governments are enforcing measures such as travel bans, quarantine, isolation, and social distancing leading to an extended period of time at home. This has resulted in reductions in physical activity and changes in dietary intakes that have the potential to accelerate sarcopenia, a deterioration of muscle mass and function (more likely in older populations), as well as increases in body fat. These changes in body composition are associated with a number of chronic, lifestyle diseases including cardiovascular disease (CVD), diabetes, osteoporosis, frailty, cognitive decline, and depression. Furthermore, CVD, diabetes, and elevated body fat are associated with greater risk of COVID-19 infection and more severe symptomology, underscoring the importance of avoiding the development of such morbidities. Here we review mechanisms of sarcopenia and their relation to the current data on the effects of COVID-19 confinement on physical activity, dietary habits, sleep, and stress as well as extended bed rest due to COVID-19 hospitalization. The potential of these factors to lead to an increased likelihood of muscle loss and chronic disease will be discussed. By offering a number of home-based strategies including resistance exercise, higher protein intakes and supplementation, we can potentially guide public health authorities to avoid a lifestyle disease and rehabilitation crisis post-COVID-19. Such strategies may also serve as useful preventative measures for reducing the likelihood of sarcopenia in general and in the event of future periods of isolation.
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Affiliation(s)
- Richard Kirwan
- School of Biological and Environmental Sciences, Liverpool John Moores University, Liverpool, UK.
| | - Deaglan McCullough
- Research Institute of Sport and Exercise Science, Liverpool John Moores University, Liverpool, UK
| | - Tom Butler
- Department of Clinical Sciences and Nutrition, University of Chester, Chester, UK.
| | - Fatima Perez de Heredia
- School of Biological and Environmental Sciences, Liverpool John Moores University, Liverpool, UK
| | - Ian G Davies
- Research Institute of Sport and Exercise Science, Liverpool John Moores University, Liverpool, UK
| | - Claire Stewart
- Research Institute of Sport and Exercise Science, Liverpool John Moores University, Liverpool, UK
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206
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Sciorati C, Gamberale R, Monno A, Citterio L, Lanzani C, De Lorenzo R, Ramirez GA, Esposito A, Manunta P, Manfredi AA, Rovere-Querini P. Pharmacological blockade of TNFα prevents sarcopenia and prolongs survival in aging mice. Aging (Albany NY) 2020; 12:23497-23508. [PMID: 33260150 PMCID: PMC7762456 DOI: 10.18632/aging.202200] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Accepted: 10/20/2020] [Indexed: 12/14/2022]
Abstract
Sarcopenia is a hallmark of aging. Inflammation due to increased generation of cytokines such as TNFα, IL-1β and IL-6 has been implicated in the pathogenesis of sarcopenia. In skeletal muscle of C57BL/6 mice from 12 until 28 months of age, we observed a progressive reduction of myofiber cross sectional area, loss of type II fibers and infiltration by inflammatory cells. Muscle strength decreased in parallel. Pharmacological TNFα blockade by weekly subcutaneous injection of Etanercept from 16 to 28 months of age prevented atrophy and loss of type II fibers, with significant improvements in muscle function and mice lifespan. The effects on leukocyte recruitment were limited. These results provide a proof of principle that endogenous TNFα is sufficient to cause sarcopenia and to reduce animal survival, and open a novel perspective on novel potential pharmacological treatment strategies based on TNFα blockade to prevent the noxious events associated with aging.
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Affiliation(s)
- Clara Sciorati
- Division of Immunology, Transplantation and Infectious Diseases, IRCCS Ospedale San Raffaele Scientific Institute, Milan, Italy
| | - Riccardo Gamberale
- Division of Immunology, Transplantation and Infectious Diseases, IRCCS Ospedale San Raffaele Scientific Institute, Milan, Italy
| | - Antonella Monno
- Division of Immunology, Transplantation and Infectious Diseases, IRCCS Ospedale San Raffaele Scientific Institute, Milan, Italy
| | - Lorena Citterio
- Unit of Nephrology, IRCCS Ospedale San Raffaele, Milan, Italy
| | - Chiara Lanzani
- Unit of Nephrology, IRCCS Ospedale San Raffaele, Milan, Italy
| | - Rebecca De Lorenzo
- Division of Immunology, Transplantation and Infectious Diseases, IRCCS Ospedale San Raffaele Scientific Institute, Milan, Italy.,Vita-Salute San Raffaele University, Milan, Italy
| | - Giuseppe A Ramirez
- Division of Immunology, Transplantation and Infectious Diseases, IRCCS Ospedale San Raffaele Scientific Institute, Milan, Italy.,Vita-Salute San Raffaele University, Milan, Italy
| | - Antonio Esposito
- Vita-Salute San Raffaele University, Milan, Italy.,Experimental Imaging Centre, San Raffaele Scientific Institute, Milan, Italy
| | - Paolo Manunta
- Unit of Nephrology, IRCCS Ospedale San Raffaele, Milan, Italy.,Vita-Salute San Raffaele University, Milan, Italy
| | - Angelo A Manfredi
- Division of Immunology, Transplantation and Infectious Diseases, IRCCS Ospedale San Raffaele Scientific Institute, Milan, Italy.,Vita-Salute San Raffaele University, Milan, Italy
| | - Patrizia Rovere-Querini
- Division of Immunology, Transplantation and Infectious Diseases, IRCCS Ospedale San Raffaele Scientific Institute, Milan, Italy.,Vita-Salute San Raffaele University, Milan, Italy
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207
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Incorporating sarcopenia and inflammation with radiation therapy in patients with hepatocellular carcinoma treated with nivolumab. Cancer Immunol Immunother 2020; 70:1593-1603. [PMID: 33231725 DOI: 10.1007/s00262-020-02794-3] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Accepted: 11/07/2020] [Indexed: 12/15/2022]
Abstract
BACKGROUND We investigated the combined effects of sarcopenia and inflammation on outcomes in patients with HCC treated with nivolumab. MATERIALS AND METHODS We reviewed 102 patients treated with nivolumab between 2017 and 2018. Sarcopenia was diagnosed when the L3 skeletal muscle indices were < 42 cm2/m2 and < 38 cm2/m2 in men and women, respectively. Baseline neutrophil-to-lymphocyte ratio (NLR) and absolute lymphocyte count were used as surrogate markers of inflammation and immune cell reservoir. High NLR (hNLR) was defined as NLR ≥ 3, and severe lymphopenia (sLP) was defined as lymphocyte < 800/μL. The overall survival (OS) and progression-free survival (PFS) were analyzed. RESULTS With a median follow-up of 21.9 (interquartile range, 8.3-58.3) months, patients with sarcopenia showed shorter OS than those without sarcopenia (median, 2.9 vs. 7.5 months, respectively). Patients with either hNLR or sLP exhibited inferior survival than those without risk factor (median OS, 2.8 vs. 14.5 months; median PFS, 1.3 vs. 3.7 months, respectively). Among 70 patients treated with RT, benefit of RT was observed in patients with sarcopenia or those without hNLR/sLP (all p < 0.05). After multivariable analysis, RT, hNLR/sLP, albumin-bilirubin (ALBI) grade, and alpha-fetoprotein were significantly associated with OS (all p < 0.05), and hNLR/sLP was also associated with decreased PFS together with ALBI grade, alpha-fetoprotein, and RT (all p < 0.05). CONCLUSION The current study hypothetically demonstrated that the risk group stratified by hNLR/sLP outweighs the significance of sarcopenia in predicting outcomes after nivolumab. Furthermore, patients with sarcopenia might benefit from RT, especially those without risk factors of hNLR/sLP.
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208
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Highlighting sarcopenia management for promoting surgical outcomes in esophageal cancers: Evidence from a prospective cohort study. Int J Surg 2020; 83:206-215. [DOI: 10.1016/j.ijsu.2020.09.049] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 09/14/2020] [Accepted: 09/25/2020] [Indexed: 02/04/2023]
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209
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Khaddour K, Gomez-Perez SL, Jain N, Patel JD, Boumber Y. Obesity, Sarcopenia, and Outcomes in Non-Small Cell Lung Cancer Patients Treated With Immune Checkpoint Inhibitors and Tyrosine Kinase Inhibitors. Front Oncol 2020; 10:576314. [PMID: 33194687 PMCID: PMC7607047 DOI: 10.3389/fonc.2020.576314] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Accepted: 09/24/2020] [Indexed: 02/06/2023] Open
Abstract
Body composition refers to the proportional content of body fat mass and lean body mass that can lead to a continuum of different phenotypes ranging from cachectic/sarcopenic state to obesity. The heterogenetic phenotypes of body composition can contribute to formation of some cancer types and can sometimes lead to disparate outcomes. Both of these extremes of the spectrum exist in patients with non-small cell lung carcinoma (NSCLC). The discovery of new pathways that drive tumorigenesis contributing to cancer progression and resistance have expanded our understanding of cancer biology leading to development of new targeted therapies including tyrosine kinase inhibitors (TKI) and immune checkpoint inhibitors (ICI) that have changed the landscape of NSCLC treatment. However, in the new era of precision medicine, the impact of body composition phenotypes on treatment outcomes and survival is now being elucidated. In this review, we will discuss the emerging evidence of a link between body composition and outcomes in patients with NSCLC treated with TKI and ICI. We will also discuss suggested mechanisms by which body composition can impact tumor behavior and anti-tumor immunological response.
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Affiliation(s)
- Karam Khaddour
- Department of Medicine, Rosalind Franklin University of Medicine and Science, McHenry, IL, United States.,Department of Medicine, Division of Hematology and Oncology, University of Illinois at Chicago, Chicago, IL, United States
| | - Sandra L Gomez-Perez
- Department of Clinical Nutrition, Rush University Medical Center, Chicago, IL, United States
| | - Nikita Jain
- Department of Medicine, Rosalind Franklin University of Medicine and Science, McHenry, IL, United States
| | - Jyoti D Patel
- Division of Hematology/Oncology, Feinberg School of Medicine, Northwestern University, Robert H. Lurie Comprehensive Cancer Center, Chicago, IL, United States
| | - Yanis Boumber
- Division of Hematology/Oncology, Feinberg School of Medicine, Northwestern University, Robert H. Lurie Comprehensive Cancer Center, Chicago, IL, United States.,Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan, Russia
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210
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Yang WS, Chang YC, Chang CH, Wu LC, Wang JL, Lin HH. The Association Between Body Mass Index and the Risk of Hospitalization and Mortality due to Infection: A Prospective Cohort Study. Open Forum Infect Dis 2020; 8:ofaa545. [PMID: 33511222 PMCID: PMC7817078 DOI: 10.1093/ofid/ofaa545] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2020] [Accepted: 11/04/2020] [Indexed: 12/24/2022] Open
Abstract
Background We aim to determine whether obesity increases the risk of various infections using a large prospective population-based cohort. Methods A total of 120 864 adults were recruited from the New Taipei City health screening program from 2005 to 2008. Statistics for hospitalization and mortality due to infection were obtained from the National Health Insurance Database and the National Death Registry in Taiwan. Results During a mean follow-up period of 7.61 years, there were 438, 7582, 5298, and 1480 first hospitalizations due to infection in the underweight, normal, overweight, and obese groups, respectively. Obesity significantly increases the risk of hospitalization for intra-abdominal infections (adjusted hazard ratio [aHR], 1.19; 95% CI, 1.00–1.40), including diverticulitis, liver abscess, acute cholecystitis and anal and rectal abscess, reproductive and urinary tract infection (aHR, 1.38; 95% CI, 1.26–1.50), skin and soft tissue infection (aHR, 2.46; 95% CI, 2.15–2.81), osteomyelitis (aHR, 1.70; 95% CI, 1.14–2.54), and necrotizing fasciitis (aHR, 3.54; 95% CI,1.87–6.67), and this relationship is dose-dependent. This study shows that there is a U-shaped association between body mass index (BMI) and hospitalization for lower respiratory tract infection, septicemia, and the summation of all infections and that underweight people are at the greatest risk, followed by obese people. There is a clear negative relationship between BMI and infection-related mortality. Conclusions The pattern that BMI affects the risk of hospitalization and mortality due to infection varies widely across infection sites. It is necessary to tailor preventive and therapeutic measures against different infections in hosts with different BMIs.
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Affiliation(s)
- Wei-Shun Yang
- Department of Internal Medicine, National Taiwan University Hospital, Hsin-Chu Branch, Taipei, Taiwan
| | - Yi-Cheng Chang
- Graduate Institute of Medical Genomics and Proteomics, National Taiwan University, Taipei, Taiwan.,Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan.,Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
| | - Chia-Hsuin Chang
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan.,Department of Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan.,Institute of Preventive Medicine, College of Public Health, National Taiwan University, Taipei, Taiwan
| | - Li-Chiu Wu
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Jiun-Ling Wang
- Department of Internal Medicine, National Cheng Kung University Hospital, Tainan, Taiwan.,College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Hsien-Ho Lin
- Institute of Epidemiology and Preventive Medicine, National Taiwan University, Taipei, Taiwan
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211
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The immuno-oncological challenge of COVID-19. ACTA ACUST UNITED AC 2020; 1:946-964. [DOI: 10.1038/s43018-020-00122-3] [Citation(s) in RCA: 67] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Accepted: 09/02/2020] [Indexed: 02/06/2023]
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212
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Exercise-Induced Myokines can Explain the Importance of Physical Activity in the Elderly: An Overview. Healthcare (Basel) 2020; 8:healthcare8040378. [PMID: 33019579 PMCID: PMC7712334 DOI: 10.3390/healthcare8040378] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Revised: 09/25/2020] [Accepted: 09/27/2020] [Indexed: 12/12/2022] Open
Abstract
Physical activity has been found to aid the maintenance of health in the elderly. Exercise-induced skeletal muscle contractions lead to the production and secretion of many small proteins and proteoglycan peptides called myokines. Thus, studies on myokines are necessary for ensuring the maintenance of skeletal muscle health in the elderly. This review summarizes 13 myokines regulated by physical activity that are affected by aging and aims to understand their potential roles in metabolic diseases. We categorized myokines into two groups based on regulation by aerobic and anaerobic exercise. With aging, the secretion of apelin, β-aminoisobutyric acid (BAIBA), bone morphogenetic protein 7 (BMP-7), decorin, insulin-like growth factor 1 (IGF-1), interleukin-15 (IL-15), irisin, stromal cell-derived factor 1 (SDF-1), sestrin, secreted protein acidic rich in cysteine (SPARC), and vascular endothelial growth factor A (VEGF-A) decreased, while that of IL-6 and myostatin increased. Aerobic exercise upregulates apelin, BAIBA, IL-15, IL-6, irisin, SDF-1, sestrin, SPARC, and VEGF-A expression, while anaerobic exercise upregulates BMP-7, decorin, IGF-1, IL-15, IL-6, irisin, and VEGF-A expression. Myostatin is downregulated by both aerobic and anaerobic exercise. This review provides a rationale for developing exercise programs or interventions that maintain a balance between aerobic and anaerobic exercise in the elderly.
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213
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Dysregulated Autophagy Mediates Sarcopenic Obesity and Its Complications via AMPK and PGC1α Signaling Pathways: Potential Involvement of Gut Dysbiosis as a Pathological Link. Int J Mol Sci 2020; 21:ijms21186887. [PMID: 32961822 PMCID: PMC7555990 DOI: 10.3390/ijms21186887] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Revised: 09/17/2020] [Accepted: 09/18/2020] [Indexed: 12/13/2022] Open
Abstract
Sarcopenic obesity (SOB), which is closely related to being elderly as a feature of aging, is recently gaining attention because it is associated with many other age-related diseases that present as altered intercellular communication, dysregulated nutrient sensing, and mitochondrial dysfunction. Along with insulin resistance and inflammation as the core pathogenesis of SOB, autophagy has recently gained attention as a significant mechanism of muscle aging in SOB. Known as important cellular metabolic regulators, the AMP-activated protein kinase (AMPK) and the peroxisome proliferator-activated receptor-gamma coactivator-1 alpha (PGC-1α) signaling pathways play an important role in autophagy, inflammation, and insulin resistance, as well as mutual communication between skeletal muscle, adipose tissue, and the liver. Furthermore, AMPK and PGC-1α signaling pathways are implicated in the gut microbiome-muscle axis. In this review, we describe the pathological link between SOB and its associated complications such as metabolic, cardiovascular, and liver disease, falls and fractures, osteoarthritis, pulmonary disease, and mental health via dysregulated autophagy controlled by AMPK and/or PGC-1α signaling pathways. Here, we propose potential treatments for SOB by modulating autophagy activity and gut dysbiosis based on plausible pathological links.
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214
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Granic A, Martin-Ruiz C, Dodds RM, Robinson L, Spyridopoulos I, Kirkwood TB, von Zglinicki T, Sayer AA. Immunosenescence profiles are not associated with muscle strength, physical performance and sarcopenia risk in very old adults: The Newcastle 85+ Study. Mech Ageing Dev 2020; 190:111321. [PMID: 32735896 DOI: 10.1016/j.mad.2020.111321] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Revised: 07/24/2020] [Accepted: 07/25/2020] [Indexed: 01/10/2023]
Abstract
Decline in immune system function (immunosenescence) has been implicated in several age-related disorders. However, little is known about whether alteration in T-cell senescence, a process underlying immunological ageing, is related to muscle health in very old adults (aged ≥85 years). Utilising data from the Newcastle 85+ Study, we aimed to (a) derive and characterise immunosenescence profiles by clustering 13 baseline immunosenescence-related biomarkers of lymphocyte compartments in 657 participants; (b) explore the association between the profiles and 5-year change in muscle strength (grip strength) and physical performance (Timed Up-and-Go test), and (c) determine whether immunosenescence profiles predict 3-year incident sarcopenia. Two distinct clusters were identified; Cluster 1 ('Senescent-like phenotype', n = 421), and Cluster 2 ('Less senescent-like phenotype', n = 236) in individuals with complete biomarker data. Although Cluster 1 was characterised by T-cell senescence (e.g., higher frequency of CD4 and CD8 senescence-like effector memory cells), and elements of the immune risk profile (lower CD4/CD8 ratio, CMV+), it was not associated with change in muscle function over time, or with prevalent or incident sarcopenia. Future studies will determine whether more in-depth characterisation or change in T-cell phenotypes predict the decline in muscle health in late adulthood.
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Affiliation(s)
- Antoneta Granic
- AGE Research Group, Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, United Kingdom; NIHR Newcastle Biomedical Research Centre, Newcastle upon Tyne Hospitals NHS Foundation Trust and Newcastle University, Newcastle upon Tyne, United Kingdom
| | - Carmen Martin-Ruiz
- Biosciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, United Kingdom
| | - Richard M Dodds
- AGE Research Group, Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, United Kingdom; NIHR Newcastle Biomedical Research Centre, Newcastle upon Tyne Hospitals NHS Foundation Trust and Newcastle University, Newcastle upon Tyne, United Kingdom
| | - Louise Robinson
- Population Health Sciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, United Kingdom
| | - Ioakim Spyridopoulos
- Biosciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, United Kingdom
| | - Thomas Bl Kirkwood
- Biosciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, United Kingdom
| | - Thomas von Zglinicki
- Biosciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, United Kingdom
| | - Avan A Sayer
- AGE Research Group, Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, United Kingdom; NIHR Newcastle Biomedical Research Centre, Newcastle upon Tyne Hospitals NHS Foundation Trust and Newcastle University, Newcastle upon Tyne, United Kingdom.
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215
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Cornish SM, Chilibeck PD, Candow DG. Potential Importance of Immune System Response to Exercise on Aging Muscle and Bone. Curr Osteoporos Rep 2020; 18:350-356. [PMID: 32500480 DOI: 10.1007/s11914-020-00596-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
PURPOSE OF REVIEW The age-related loss of skeletal muscle and bone tissue decreases functionality and increases the risk for falls and injuries. One contributing factor of muscle and bone loss over time is chronic low-grade inflammation. Exercise training is an effective countermeasure for decreasing the loss of muscle and bone tissue, possibly by enhancing immune system response. Herein, we discuss key interactions between the immune system, muscle, and bone in relation to exercise perturbations, and we identify that there is substantial "cross-talk" between muscle and bone and the immune system in response to exercise. RECENT FINDINGS Recent advances in our understanding of the "cross-talk" between muscle and bone and the immune system indicate that exercise is likely to mediate many of the beneficial effects on muscle and bone via their interactions with the immune system. The age-related loss of muscle and bone tissue may be partially explained by an impaired immune system via chronic low-grade inflammation. Exercise training has a beneficial effect on immune system function and aging muscle and bone. Theoretically, the "cross-talk" between the immune system, muscle, and bone in response to exercise enhances aging musculoskeletal health.
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Affiliation(s)
- Stephen M Cornish
- Faculty of Kinesiology and Recreation Management, University of Manitoba, 117 Frank Kennedy Centre, Winnipeg, Manitoba, R3T 2N2, Canada.
| | - Philip D Chilibeck
- College of Kinesiology, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
| | - Darren G Candow
- Faculty of Kinesiology and Health Studies, University of Regina, Regina, Saskatchewan, Canada
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216
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Guo A, Li K, Xiao Q. Sarcopenic obesity: Myokines as potential diagnostic biomarkers and therapeutic targets? Exp Gerontol 2020; 139:111022. [PMID: 32707318 DOI: 10.1016/j.exger.2020.111022] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Revised: 07/12/2020] [Accepted: 07/13/2020] [Indexed: 02/07/2023]
Abstract
Sarcopenic obesity (SO) is a condition characterized by the occurrence of both sarcopenia and obesity and imposes a heavy burden on the health of the elderly. Controversies and challenges regarding the definition, diagnosis and treatment of SO still remain because of its complex pathogenesis and limitations. Over the past few decades, numerous studies have revealed that myokines secreted from skeletal muscle play significant roles in the regulation of muscle mass and function as well as metabolic homeostasis. Abnormalities in myokines may trigger and promote the pathogenesis underlying age-related and metabolic diseases, including obesity, sarcopenia, type 2 diabetes (T2D), and SO. This review mainly focuses on the role of myokines as potential biomarkers for the early diagnosis and therapeutic targets in SO.
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Affiliation(s)
- Ai Guo
- Department of Geriatrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Kai Li
- Department of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Qian Xiao
- Department of Geriatrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China.
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217
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Yamamoto T, Nakayama M, Miyazaki M, Sato H, Matsushima M, Sato T, Ito S. Impact of lower body mass index on risk of all-cause mortality and infection-related death in Japanese chronic kidney disease patients. BMC Nephrol 2020; 21:244. [PMID: 32605606 PMCID: PMC7325015 DOI: 10.1186/s12882-020-01894-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2019] [Accepted: 06/15/2020] [Indexed: 12/24/2022] Open
Abstract
Background Several studies have reported that lower body mass index (BMI) is associated with high mortality in patients with chronic kidney disease (CKD). Rate of infection-related death in CKD patients is increasing. However, the relationship between BMI and infection-related death is unclear. Methods Overall, 2648 CKD outpatients (estimated glomerular filtration rate < 60 mL/min and/or presenting with proteinuria) under the care of nephrologists were prospectively followed for 5 years. Patients were stratified by quartile of BMI levels. Data on all-cause mortality before progression to end-stage kidney disease (ESKD) and the cause of death were collected. Results The median follow-up time was 3.9 years (interquartile range, 1.7–5.0); 114 patients died and 308 started renal replacement therapy. The leading causes of death were as follows; cardiovascular (41%), infection-related (21%), and malignancy-related (18%). Advanced age and lower BMI were the significant risk factors for all-cause mortality before progression to ESKD. Advanced age was statistically associated with respective causes of death, while lower BMI was associated with infection-related death only. CKD stage had no significant impact on all-cause or individual mortality. Conclusions Low BMI was associated with significant risk of all-cause mortality and infection-related death, which may indicate the novel clinical target to improve CKD outcomes.
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Affiliation(s)
- Tae Yamamoto
- Division of Nephrology, Endocrinology and Vascular Medicine, Tohoku University Graduate School of Medicine, 1-1 Seiryomachi, Aoba-ku, Sendai, Miyagi, 980-8574, Japan. .,Research Division of Chronic Kidney Disease and Dialysis Treatment, Tohoku University Hospital, 1-1 Seiryomachi, Aoba-ku, Sendai, Miyagi, 980-8574, Japan. .,Department of Internal Medicine, Sendai City Hospital, 1-1 Seiryomachi, Aoba-ku, Sendai, Miyagi, 980-8574, Japan.
| | - Masaaki Nakayama
- Research Division of Chronic Kidney Disease and Dialysis Treatment, Tohoku University Hospital, 1-1 Seiryomachi, Aoba-ku, Sendai, Miyagi, 980-8574, Japan.,Center for Advanced Integrated Renal Science, Tohoku University Graduate School of Medicine, Sendai, Japan.,Department of Nephrology, St. Luke's International Hospital, Tokyo, Japan
| | - Mariko Miyazaki
- Division of Nephrology, Endocrinology and Vascular Medicine, Tohoku University Graduate School of Medicine, 1-1 Seiryomachi, Aoba-ku, Sendai, Miyagi, 980-8574, Japan.,Research Division of Chronic Kidney Disease and Dialysis Treatment, Tohoku University Hospital, 1-1 Seiryomachi, Aoba-ku, Sendai, Miyagi, 980-8574, Japan
| | - Hiroshi Sato
- Division of Nephrology, Endocrinology and Vascular Medicine, Tohoku University Graduate School of Medicine, 1-1 Seiryomachi, Aoba-ku, Sendai, Miyagi, 980-8574, Japan.,Department of Internal Medicine, JR Sendai Hospital, Sendai, Japan
| | - Masato Matsushima
- Center for Advanced Integrated Renal Science, Tohoku University Graduate School of Medicine, Sendai, Japan.,Department of Clinical Research, The Jikei University School of Medicine, Tokyo, Japan
| | - Toshinobu Sato
- Kidney Center, Japan Community Health Care Organization Sendai Hospital, Sendai, Japan
| | - Sadayoshi Ito
- Division of Nephrology, Endocrinology and Vascular Medicine, Tohoku University Graduate School of Medicine, 1-1 Seiryomachi, Aoba-ku, Sendai, Miyagi, 980-8574, Japan
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218
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Barbalho SM, Prado Neto EV, De Alvares Goulart R, Bechara MD, Baisi Chagas EF, Audi M, Guissoni Campos LM, Landgraf Guiger E, Buchaim RL, Buchaim DV, Cressoni Araujo A. Myokines: a descriptive review. J Sports Med Phys Fitness 2020; 60:1583-1590. [PMID: 32586076 DOI: 10.23736/s0022-4707.20.10884-3] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
In the last years, scientists have shown that skeletal muscle is not a pure locomotor unit or responsible for propulsion and posture. Skeletal muscle encompasses one of the major organs of the body (constituting about 40% of the body mass in non-obese men). It regulates energy and metabolic processes and is now recognized as an organ capable of producing molecules with vital functions. These molecules are termed myokines, a new field of research in the health sciences, and represent an open field of discoveries and applications in several areas. The aim of this review was to show the role of some well-known myokines in the maintenance of homeostasis. Our search was performed in databases such as Medline/Pubmed, Embase and Scielo. Some relevant myokines are interleukin-6 (IL-6), IL-8, IL-15, irisin, myostatin, fibroblast growth factor 21 (FGF21), leukemia inhibitory factor (LIF), brain-derived neurotrophic factor (BDNF), and insulin-like growth factor-1 (IGF-1). They are related to play a positive or negative role in muscle function and metabolism homeostasis. They are associated with the regulation of glucose and lipid metabolism, the deposition of fat in the adipose tissue, and the "browning" of the white adipose tissue. For these reasons, they can interfere with the prevention of obesity, diabetes, metabolic syndrome, and cardiovascular diseases. The discovery of the myokines has opened a new direction in understanding the effects of exercises on humans.
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Affiliation(s)
- Sandra M Barbalho
- Medical School of Marília (UNIMAR), Marília, Brazil - .,Food Technology School, Marília, Brazil -
| | | | | | | | | | - Mauro Audi
- Medical School of Marília (UNIMAR), Marília, Brazil
| | | | - Elen Landgraf Guiger
- Medical School of Marília (UNIMAR), Marília, Brazil.,Food Technology School, Marília, Brazil
| | - Rogério L Buchaim
- Medical School of Marília (UNIMAR), Marília, Brazil.,University of São Paulo (FOB - USP), Bauru, Brazil
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219
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Inflamma-miR-21 Negatively Regulates Myogenesis during Ageing. Antioxidants (Basel) 2020; 9:antiox9040345. [PMID: 32340146 PMCID: PMC7222422 DOI: 10.3390/antiox9040345] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2020] [Revised: 04/10/2020] [Accepted: 04/18/2020] [Indexed: 12/20/2022] Open
Abstract
Ageing is associated with disrupted redox signalling and increased circulating inflammatory cytokines. Skeletal muscle homeostasis depends on the balance between muscle hypertrophy, atrophy and regeneration, however during ageing this balance is disrupted. The molecular pathways underlying the age-related decline in muscle regenerative potential remain elusive. microRNAs are conserved robust gene expression regulators in all tissues including skeletal muscle. Here, we studied satellite cells from adult and old mice to demonstrate that inhibition of miR-21 in satellite cells from old mice improves myogenesis. We determined that increased levels of proinflammatory cytokines, TNFα and IL6, as well as H2O2, increased miR-21 expression in primary myoblasts, which in turn resulted in their decreased viability and myogenic potential. Inhibition of miR-21 function rescued the decreased size of myotubes following TNFα or IL6 treatment. Moreover, we demonstrated that miR-21 could inhibit myogenesis in vitro via regulating IL6R, PTEN and FOXO3 signalling. In summary, upregulation of miR-21 in satellite cells and muscle during ageing may occur in response to elevated levels of TNFα and IL6, within satellite cells or myofibrillar environment contributing to skeletal muscle ageing and potentially a disease-related decline in potential for muscle regeneration.
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220
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Cytokine signaling in the modulation of post-acute and chronic systemic inflammation: a review of the influence of exercise and certain drugs. AIMS ALLERGY AND IMMUNOLOGY 2020. [DOI: 10.3934/allergy.2020009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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