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Sarcopenia

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https://www.readbyqxmd.com/read/28822255/malnutrition-in-postacute-geriatric-care-basic-espen-diagnosis-and-etiology-based-diagnoses-analyzed-by-length-of-stay-in-hospital-mortality-and-functional-rehabilitation-indexes
#1
Dolores Sánchez-Rodríguez, Ester Marco, Cédric Annweiler, Natalia Ronquillo-Moreno, Andrea Tortosa, Olga Vázquez-Ibar, Ferran Escalada, Xavier Duran, Josep M Muniesa
OBJECTIVE: To determine the relationships between malnutrition and nutrition-related conditions according to the European Society of Clinical Nutrition and Metabolism (ESPEN) consensus and guidelines and clinical outcomes in postacute rehabilitation. METHODS: Of 102 eligible inpatients, 95 (84.5 years old, 63.2% women) fulfilled inclusion criteria: aged ≥70 years, body mass index <30kg/m(2), admission for rehabilitation. Mini-Nutritional Assessment-Short Form (MNA-SF≤11) identified patients "at risk" and ESPEN basic and etiology based definitions were applied...
August 2, 2017: Archives of Gerontology and Geriatrics
https://www.readbyqxmd.com/read/28821868/dysmobility-syndrome-and-risk-of-mortality-for-community-dwelling-middle-aged-and-older-adults-the-nexus-of-aging-and-body-composition
#2
Wei-Ju Lee, Li-Kuo Liu, An-Chun Hwang, Li-Ning Peng, Ming-Hsien Lin, Liang-Kung Chen
Dysmobility syndrome is a newly proposed concept to comprehensively consider bone-muscle-adiposity as a whole to associate with mortality and other adverse outcomes in the older adults. Little was known in Asian populations since the body composition was highly related to ethnicity. The study aimed to evaluate the association between dysmobility syndrome and mortality and to explore the most optimal operational definition for dysmobility syndrome. The prevalence of dysmobility syndrome was 3.9-10.1% based on different operational definitions of adiposity and skeletal muscle index...
August 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28821239/association-between-sarcopenia-with-lifestyle-and-family-function-among-community-dwelling-chinese-aged-60%C3%A2-years-and-older
#3
Shan Hai, Hui Wang, Li Cao, Ping Liu, Jianghua Zhou, Ying Yang, Birong Dong
BACKGROUND: Sarcopenia is defined as the age-related decline in skeletal muscle mass and function. The risk factors and causes of sarcopenia must be identified to develop prevention and treatment strategies for this syndrome. Our aim was to examine the association between sarcopenia with lifestyle and family function among community-dwelling Chinese people aged 60 years and older. METHODS: We conducted this study to evaluate sarcopenia among 834 community-dwelling Chinese individuals aged ≥60 years using the Asian Working Group for Sarcopenia (AWGS) criteria...
August 18, 2017: BMC Geriatrics
https://www.readbyqxmd.com/read/28819350/understanding-sarcopenia-development-a-role-for-healthy-behaviors
#4
Justin P Hardee, James A Carson
For decades the biomedical community has documented the accelerated loss of muscle mass that occurs with advancing aging, termed sarcopenia. The timely review article ("Attenuation of Adverse Effects of Aging on Skeletal Muscle by Regular Exercise and Nutritional Support") by Arthur Leon presents our current state of knowledge on the biological processes responsible for age-induced loss of muscle mass and function. This loss of skeletal muscle has critical health implications as it can negatively affect morbidity and mortality...
January 2017: American Journal of Lifestyle Medicine
https://www.readbyqxmd.com/read/28819168/resistance-training-regulates-gene-expression-of-molecules-associated-with-intramyocellular-lipids-glucose-signaling-and-fiber-size-in-old-rats
#5
Manoel Benício Teixeira Ribeiro, Vinicius Guzzoni, Jeffrey M Hord, Gisele Nunes Lopes, Rita de Cássia Marqueti, Rosângela Vieira de Andrade, Heloisa Sobreiro Selistre-de-Araujo, João Luiz Q Durigan
Sarcopenia is a complex multifactorial process, some of which involves fat infiltration. Intramyocellular lipid (IMCL) accumulation is postulated to play a role on sarcopenia during aging, which is believed to be due alterations in glucose homeostasis in the skeletal muscle. Sarcopenia, along with intramuscular lipids, is associated with physical inactivity. Resistance training (RT) has been indicated to minimize the age-induced muscle skeletal adaptations. Thus, we aimed to investigate the effects of RT on mRNA levels of regulatory components related to intramyocellular lipid, glucose metabolism and fiber size in soleus and gastrocnemius muscles of aged rats...
August 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28819135/ribosomal-transcription-is-regulated-by-pgc-1alpha-and-disturbed-in-huntington-s-disease
#6
Sarah Jesse, Hanna Bayer, Marius C Alupei, Martina Zügel, Medhanie Mulaw, Francesca Tuorto, Silke Malmsheimer, Karmveer Singh, Jürgen Steinacker, Uwe Schumann, Albert C Ludolph, Karin Scharffetter-Kochanek, Anke Witting, Patrick Weydt, Sebastian Iben
PGC-1α is a versatile inducer of mitochondrial biogenesis and responsive to the changing energy demands of the cell. As mitochondrial ATP production requires proteins that derive from translation products of cytosolic ribosomes, we asked whether PGC-1α directly takes part in ribosomal biogenesis. Here, we show that a fraction of cellular PGC-1α localizes to the nucleolus, the site of ribosomal transcription by RNA polymerase I. Upon activation PGC-1α associates with the ribosomal DNA and boosts recruitment of RNA polymerase I and UBF to the rDNA promoter...
August 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28814847/relationship-between-tongue-strength-lip-strength-and-nutrition-related-sarcopenia-in-older-rehabilitation-inpatients-a-cross-sectional-study
#7
Kotomi Sakai, Enri Nakayama, Haruka Tohara, Keiji Kodama, Takahiro Takehisa, Yozo Takehisa, Koichiro Ueda
OBJECTIVE: The objective of this study was to clarify the relationship between tongue strength, lip strength, and nutrition-related sarcopenia (NRS). PATIENTS AND METHODS: A total of 201 older inpatients aged ≥65 years (70 men, median age: 84 years, interquartile range: 79-89 years) consecutively admitted for rehabilitation were included in this cross-sectional study. The main factors evaluated were the presence of NRS diagnosed by malnutrition using the Mini-Nutrition Assessment - Short Form, sarcopenia based on the criteria of the Asian Working Group for Sarcopenia, tongue strength, and lip strength...
2017: Clinical Interventions in Aging
https://www.readbyqxmd.com/read/28814844/comparison-between-parameters-of-muscle-performance-and-inflammatory-biomarkers-of-non-sarcopenic-and-sarcopenic-elderly-women
#8
Lygia Paccini Lustosa, Patrícia Parreira Batista, Daniele Sirineu Pereira, Leani Souza Máximo Pereira, Aline Scianni, Giane Amorim Ribeiro-Samora
BACKGROUND: Sarcopenia is a multifactorial geriatric syndrome with complex interrelationships. Increased plasma levels of inflammatory mediators increase the catabolic stimuli of the musculature, thereby causing a decrease in mass and muscular function. OBJECTIVE: The objective of this study was to compare the performance of the knee extensors test (by isokinetic dynamometer) and plasma levels of interleukin-6 (IL-6) and soluble receptors of tumor necrosis factor alpha (sTNFR1) between sarcopenics and non-sarcopenics community-dwelling elderly women residents of Brazil...
2017: Clinical Interventions in Aging
https://www.readbyqxmd.com/read/28813700/regenerative-medicine-approaches-for-age-related-muscle-loss-and-sarcopenia-a-mini-review
#9
Juan Diego Naranjo, Jenna L Dziki, Stephen F Badylak
Sarcopenia is a complex and multifactorial disease that includes a decrease in the number, structure and physiology of muscle fibers, and age-related muscle mass loss, and is associated with loss of strength, increased frailty, and increased risk for fractures and falls. Treatment options are suboptimal and consist of exercise and nutrition as the cornerstone of therapy. Current treatment principles involve identification and modification of risk factors to prevent the disease, but these efforts are of limited value to the elderly individuals currently affected by sarcopenia...
August 17, 2017: Gerontology
https://www.readbyqxmd.com/read/28811200/globular-adiponectin-reverses-osteo-sarcopenia-and-altered-body-composition-in-ovariectomized-rats
#10
Shyamsundar Pal China, Subhashis Pal, Sourav Chattopadhyay, Konica Porwal, Sapana Kushwaha, Sharmishtha Bhattacharyya, Monika Mittal, Anagha A Gurjar, Tarun Barbhuyan, Abhishek K Singh, Arun K Trivedi, Jiaur R Gayen, Sabyasachi Sanyal, Naibedya Chattopadhyay
Adiponectin regulates various metabolic processes including glucose flux, lipid breakdown and insulin response. We recently reported that adiponectin receptor1 (adipoR1) activation by a small molecule reverses osteopenia in leptin receptor deficient db/db (diabetic) mice. However, the role of adiponectin in bone metabolism under the setting of post-menopausal (estrogen-deficiency) osteopenia and associated metabolic derangements has not been studied. Here, we studied the therapeutic effect of the globular form of adiponectin (gAd), which is predominantly an adipoR1 agonist, in aged ovariectomized (OVX) rats and compared it with standard-of-care anti-osteoporosis drugs...
August 12, 2017: Bone
https://www.readbyqxmd.com/read/28806178/vitamin-d-and-osteosarcopenia-an-update-from-epidemiological-studies
#11
Olivier Bruyère, Etienne Cavalier, Jean-Yves Reginster
PURPOSE OF REVIEW: The review summarizes recent epidemiological studies that examined the relationship between osteoporosis and sarcopenia to assess the impact of vitamin D status or supplementation on health outcomes related to these two medical conditions. RECENT FINDINGS: Osteoporosis and sarcopenia are major public health problems, but whether these two diseases should be considered alone or combined into a single condition is not clear. No consensual definition of osteosarcopenia is largely accepted...
August 12, 2017: Current Opinion in Clinical Nutrition and Metabolic Care
https://www.readbyqxmd.com/read/28802294/serum-25-hydroxyvitamin-d-and-elderly-skeletal-muscle-mass-and-function-in-urban-north-china
#12
Liping Meng, Qingqing Man, Linhong Yuan, Lingxia Shen, Weimin Li, Guiyuan Guo, Lixiang Li, Shanshan Jia, Yixiong Gao, Pengkun Song, Jian Zhang
BACKGROUND AND OBJECTIVES: To investigate the association of serum 25-hydroxyvitamin D (25(OH)D) with skeletal muscle mass (SMM) and function among the elderly in an urban area in northern China. METHODS AND STUDY DESIGN: A total of 912 participants (316 men, 596 women) aged more than 60 years from 4 communities in Beijing were enrolled. Serum concentrations of 25(OH)D were measured through radioimmunoassay. SMM was assessed through bioelectrical impendence analysis, whereas skeletal muscle function was assessed through grip strength and 4-m regular gait speed measurements...
2017: Asia Pacific Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28802091/a-cyclic-and-intermittent-very-low-protein-diet-can-have-beneficial-effects-against-advanced-diabetic-nephropathy-in-wistar-fatty-fa-fa-rats-an-animal-model-of-type-2-diabetes-and-obesity
#13
Munehiro Kitada, Yoshio Ogura, Taeko Suzuki, Itaru Monnno, Keizo Kanasaki, Ai Watanabe, Daisuke Koya
A low-protein diet (LPD), particularly, very low-protein diet (VLPD) is expected for reno-protection in advanced chronic kidney disease, including diabetic nephropathy. We previously also demonstrated that a VLPD clearly improved advanced diabetic nephropathy in a type 2 diabetes and obesity rat. However, clinically, an everyday long-term VLPD contributes to poor adherence, which may be related to controvertial results of an LPD on the suppression for diabetic nephropathy, and has nutritional issues, such as sarcopenia or protein-energy wasting...
August 12, 2017: Nephrology
https://www.readbyqxmd.com/read/28796857/association-of-systemic-inflammation-and-sarcopenia-with-survival-in-nonmetastatic-colorectal-cancer-results-from-the-c-scans-study
#14
Elizabeth M Cespedes Feliciano, Candyce H Kroenke, Jeffrey A Meyerhardt, Carla M Prado, Patrick T Bradshaw, Marilyn L Kwan, Jingjie Xiao, Stacey Alexeeff, Douglas Corley, Erin Weltzien, Adrienne L Castillo, Bette J Caan
Importance: Systemic inflammation and sarcopenia are easily evaluated, predict mortality in many cancers, and are potentially modifiable. The combination of inflammation and sarcopenia may be able to identify patients with early-stage colorectal cancer (CRC) with poor prognosis. Objective: To examine associations of prediagnostic systemic inflammation with at-diagnosis sarcopenia, and determine whether these factors interact to predict CRC survival, adjusting for age, ethnicity, sex, body mass index, stage, and cancer site...
August 10, 2017: JAMA Oncology
https://www.readbyqxmd.com/read/28796017/sarcopenia-prevalence-and-impact-on-operative-and-oncologic-outcomes-in-the-multimodal-management-of-locally-advanced-esophageal-cancer
#15
Jessie A Elliott, Suzanne L Doyle, Conor F Murphy, Sinead King, Emer M Guinan, Peter Beddy, Narayanasamy Ravi, John V Reynolds
OBJECTIVE: The aim of this article was to study the prevalence and significance of sarcopenia in the multimodal management of locally advanced esophageal cancer (LAEC), and to assess its independent impact on operative and oncologic outcomes. SUMMARY OF BACKGROUND DATA: Sarcopenia in cancer may confer negative outcomes, but its prevalence and impact on modern multimodal regimens for LAEC have not been systematically studied. METHODS: Two hundred fifty-two consecutive patients were studied...
August 8, 2017: Annals of Surgery
https://www.readbyqxmd.com/read/28795971/altered-satellite-cell-dynamics-accompany-skeletal-muscle-atrophy-during-chronic-illness-disuse-and-aging
#16
Colleen F McKenna, Christopher S Fry
PURPOSE OF REVIEW: This review explores recent research investigating the contribution of satellite cells (skeletal muscle stem cells) during muscle fiber atrophy as seen in periods of disuse, illness, and aging. RECENT FINDINGS: Studies indicate reduced satellite cell activity and density in a variety of acute and chronic conditions characterized by robust muscle wasting. The direct contribution of satellite cells to unloading/denervation and chronic illness-induced atrophy remains controversial...
August 8, 2017: Current Opinion in Clinical Nutrition and Metabolic Care
https://www.readbyqxmd.com/read/28792061/role-of-nerve-muscle-interactions-and-ros-in-regulation-of-muscle-proteostasis-with-aging
#17
Aphrodite Vasilaki, Arlan Richardson, Holly Van Remmen, Susan V Brooks, Lisa Larkin, Anne McArdle, Malcolm J Jackson
Skeletal muscle aging is characterised by atrophy, a deficit in specific force generation, increased susceptibility to injury, and incomplete recovery after severe damage. The hypothesis that increased generation of Reactive Oxygen Species (ROS) in vivo plays a key role in the aging process has been extensively studied, but remains controversial. Skeletal muscle generates ROS at rest and during exercise. ROS can cause oxidative damage particularly to proteins. Indeed, products of oxidative damage accumulate in skeletal muscle during aging and the ability of muscle cells to respond to increased ROS becomes defective...
August 9, 2017: Journal of Physiology
https://www.readbyqxmd.com/read/28791501/skeletal-muscle-mass-to-visceral-fat-area-ratio-is-an-important-determinant-affecting-hepatic-conditions-of-non-alcoholic-fatty-liver-disease
#18
Takashi Shida, Kentaro Akiyama, Sechang Oh, Akemi Sawai, Tomonori Isobe, Yoshikazu Okamoto, Kazunori Ishige, Yuji Mizokami, Kenji Yamagata, Kojiro Onizawa, Hironori Tanaka, Hiroko Iijima, Junichi Shoda
BACKGROUND: Not only obesity but also sarcopenia is associated with NAFLD. The influence of altered body composition on the pathophysiology of NAFLD has not been fully elucidated. The aim of this study is to determine whether skeletal muscle mass to visceral fat area ratio (SV ratio) affects NAFLD pathophysiology. METHODS: A total of 472 subjects were enrolled. The association between SV ratio and NAFLD pathophysiological factors was assessed in a cross-sectional nature by stratification analysis...
August 8, 2017: Journal of Gastroenterology
https://www.readbyqxmd.com/read/28790226/effect-of-metformin-on-handgrip-strength-gait-speed-myostatin-serum-level-and-health-related-quality-of-life-a-double-blind-randomized-controlled-trial-among-non-diabetic-pre-frail-elderly-patients
#19
Purwita Wijaya Laksmi, Siti Setiati, Tirza Z Tamin, Pradana Soewondo, Wasilah Rochmah, Nafrialdi Nafrialdi, Joedo Prihartono
BACKGROUND: sarcopenia contributes to the development of frailty syndrome. Frailty syndrome is potentially improved by modifying insulin resistance, inflammation, and myostatin level. This study is aimed to investigate the effect of metformin on handgrip strength, gait speed, myostatin serum level, and health-related quality of life (HR-QoL) among non-diabetic pre-frail elderly patients. METHODS: a double blind randomized controlled trial study was conducted on non-diabetic elderly outpatients aged ≥ 60 years with pre-frail status based on phenotype and/ or index criteria (Cardiovascular Health Study and/ or Frailty Index 40 items) consecutively recruited from March 2015 to June 2016 at Cipto Mangunkusumo Hospital...
April 2017: Acta Medica Indonesiana
https://www.readbyqxmd.com/read/28783713/aging-and-sarcopenia-associate-with-specific-interactions-between-gut-microbes-serum-biomarkers-and-host-physiology-in-rats
#20
Jay Siddharth, Anirikh Chakrabarti, Alice Pannérec, Sonia Karaz, Delphine Morin-Rivron, Mojgan Masoodi, Jerome N Feige, Scott James Parkinson
The microbiome has been demonstrated to play an integral role in the maintenance of many aspects of health that are also associated with aging. In order to identify areas of potential exploration and intervention, we simultaneously characterized age-related alterations in gut microbiome, muscle physiology and serum proteomic and lipidomic profiles in aged rats to define an integrated signature of the aging phenotype. We demonstrate that aging skews the composition of the gut microbiome, in particular by altering the Sutterella to Barneseilla ratio, and alters the metabolic potential of intestinal bacteria...
July 17, 2017: Aging
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