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Sarcopenia

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https://www.readbyqxmd.com/read/29052905/metabolic-changes-in-patients-with-prostate-cancer-during-androgen-deprivation-therapy
#1
REVIEW
Koji Mitsuzuka, Yoichi Arai
Androgen deprivation therapy continues to be widely used for the treatment of prostate cancer despite the appearance of new-generation androgen-receptor targeting drugs after 2000. Androgen deprivation therapy can alleviate symptoms in patients with metastatic prostate cancer and might have a survival benefit in some patients, but it causes undesirable changes in lipid, glucose, muscle or bone metabolism. These metabolic changes could lead to new onset or worsening of diseases, such as obesity, metabolic syndrome, diabetes mellitus, cardiovascular disease, sarcopenia or fracture...
October 20, 2017: International Journal of Urology: Official Journal of the Japanese Urological Association
https://www.readbyqxmd.com/read/29051030/posttherapeutic-skeletal-muscle-mass-recovery-predicts-favorable-prognosis-in-patients-with-advanced-urothelial-carcinoma-receiving-first-line-platinum-based-chemotherapy
#2
Hiroshi Fukushima, Madoka Kataoka, Yasukazu Nakanishi, Kazumasa Sakamoto, Kosuke Takemura, Hiroaki Suzuki, Masaya Ito, Ken-Ichi Tobisu, Yasuhisa Fujii, Fumitaka Koga
OBJECTIVES: Sarcopenia, decreased skeletal muscle mass (SMM), is an adverse prognostic factor in patients with advanced urothelial carcinoma (aUC). Given that SMM is variable depending on disease and patient conditions, changes in SMM over the course of treatments may be also prognostic. We investigated the prognostic role of posttherapeutic SMM recovery (PSR) in patients with aUC receiving first-line platinum-based chemotherapy. MATERIALS AND METHODS: This retrospective study included 72 consecutive patients with aUC receiving first-line platinum-based chemotherapy...
October 17, 2017: Urologic Oncology
https://www.readbyqxmd.com/read/29050209/handgrip-strength-and-subclinical-carotid-atherosclerosis-in-relation-to-platelet-levels-among-hypertensive-elderly-japanese
#3
Yuji Shimizu, Shimpei Sato, Jun Koyamatsu, Hirotomo Yamanashi, Mako Nagayoshi, Koichiro Kadota, Shin-Ya Kawashiri, Keita Inoue, Yasuhiro Nagata, Takahiro Maeda
Age-related disruption of microvascular endothelium exacerbates hypertension and sarcopenia; and atherosclerosis is a well-known biological response to vascular endothelial injury. Therefore, prevalence of atherosclerosis among hypertensive elderly subjects may partly indicate the presence of an appropriate response to endothelial injury. We conducted a cross-sectional study of 795 elderly hypertensive Japanese subjects aged 60-89 years. Since platelet level is an indicator of vascular repair activity, subjects were stratified by platelet counts...
September 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/29049000/oral-nutrition-as-a-form-of-pre-operative-enhancement-in-patients-undergoing-surgery-for-colorectal-cancer-a-systematic-review
#4
Emma R J Bruns, Tanja E Argillander, Baukje Van Den Heuvel, Christianne J Buskens, Peter Van Duijvendijk, Renate M Winkels, Annette Kalf, Edwin S Van Der Zaag, Eelco B Wassenaar, Willem A Bemelman, Barbara C Van Munster
BACKGROUND: Nutritional status has major impacts on the outcome of surgery, in particular in patients with cancer. The aim of this review was to assess the merit of oral pre-operative nutritional support as a part of prehabilitation in patients undergoing surgery for colorectal cancer. METHODS: A systematic literature search and meta-analysis was performed according to the Preferred Reporting of Systematic Reviews and Meta-Analyses (PRISMA) recommendations in order to review all trials investigating the effect of oral pre-operative nutritional support in patients undergoing colorectal surgery...
October 19, 2017: Surgical Infections
https://www.readbyqxmd.com/read/29046874/biochemical-pathways-of-sarcopenia-and-their-modulation-by-physical-exercise-a-narrative-review
#5
REVIEW
Mohammad Mosaferi Ziaaldini, Emanuele Marzetti, Anna Picca, Zsolt Murlasits
Aging is a complex process characterized by progressive multisystem derangement predisposing individuals to increased risk of developing negative health outcomes. Sarcopenia is the age-related decline of muscle mass and function/strength and represents a highly prevalent correlate of aging. Several factors have been indicated to play a role in the onset and progression of sarcopenia; however, its pathophysiology is still unclear. Physical exercise is to date one of the few strategies able to improve muscle health in old age through multiple metabolic and transcriptional adaptations...
2017: Frontiers in Medicine
https://www.readbyqxmd.com/read/29046390/novel-sarcopenia-related-alterations-in-sarcomeric-protein-post-translational-modifications-in-skeletal-muscles-identified-by-top-down-proteomics
#6
Liming Wei, Zachery R Gregorich, Ziqing Lin, Wenxuan Cai, Yutong Jin, Susan H McKiernan, Sean McIlwain, Judd M Aiken, Richard L Moss, Gary M Diffee, Ying Ge
Sarcopenia, the age-related loss of skeletal muscle mass and strength, is a significant cause of morbidity in the elderly and is a major burden on health care systems. Unfortunately, the underlying molecular mechanisms in sarcopenia remain poorly understood. Herein, we utilized top-down proteomics to elucidate sarcopenia-related changes in the fast- and slow-twitch skeletal muscles of aging rats with a focus on the sarcomeric proteome, which includes both myofilament and Z-disc proteins-the proteins that constitute the contractile apparatuses...
October 18, 2017: Molecular & Cellular Proteomics: MCP
https://www.readbyqxmd.com/read/29045254/nutritional-interventions-in-sarcopenia-where-do-we-stand
#7
Jean Woo
PURPOSE OF REVIEW: To document recent evidence regarding the role of nutrition as an intervention for sarcopenia. RECENT FINDINGS: A review of seven randomized controlled trials (RCTs) on beta-hydroxy-beta-methylbutyrate (HMB) alone on muscle loss in 147 adults showed greater muscle mass gain in the intervention group, but no benefit in muscle strength and physical performance measures. Three other review articles examined nutrition and exercise as combined intervention, and suggest enhancement of benefits of exercise by nutrition supplements (energy, protein, vitamin D)...
October 17, 2017: Current Opinion in Clinical Nutrition and Metabolic Care
https://www.readbyqxmd.com/read/29043432/recent-advances-in-pharmacological-hormonal-and-nutritional-intervention-for-sarcopenia
#8
REVIEW
Kunihiro Sakuma, Akihiko Yamaguchi
Sarcopenia, the age-related loss of skeletal muscle mass, is characterized by a deterioration of muscle quantity and quality leading to a gradual slowing of movement, a decline in strength and power, increased risk of fall-related injury, and often frailty. This review focuses on the recent advances of pharmacological, hormonal, and nutritional approaches for attenuating sarcopenia. The article is composed of the data reported in many basic and some clinical studies for mammalian muscles. Resistance training combined with amino acid-containing supplements is the gold standard to prevent sarcopenia...
October 18, 2017: Pflügers Archiv: European Journal of Physiology
https://www.readbyqxmd.com/read/29040185/sarcopenia-is-an-important-prognostic-factor-in-patients-with-cervical-cancer-undergoing-concurrent-chemoradiotherapy
#9
Takanori Kiyotoki, Keiichiro Nakamura, Junko Haraga, Chiaki Omichi, Naoyuki Ida, Masayuki Saijo, Takeshi Nishida, Tomoyuki Kusumoto, Hisashi Masuyama
OBJECTIVE: This study aimed to investigate the correlation of sarcopenia findings with prognostic factors in patients with cervical cancer (CC) undergoing concurrent chemoradiotherapy (CCRT). METHODS: We retrospectively collected data on body composition and clinicopathological features from the medical records of 60 patients with CC who underwent CCRT and analyzed correlations between prognosis and changes in body composition as measured by computed tomography (skeletal muscle and iliopsoas muscle [IM])...
October 17, 2017: International Journal of Gynecological Cancer
https://www.readbyqxmd.com/read/29037155/differences-in-handgrip-strength-protocols-to-identify-sarcopenia-and-frailty-a-systematic-review
#10
A R Sousa-Santos, T F Amaral
BACKGROUND: Hand grip strength (HGS) is used for the diagnosis of sarcopenia and frailty. Several factors have been shown to influence HGS values during measurement. Therefore, variations in the protocols used to assess HGS, as part of the diagnosis of sarcopenia and frailty, may lead to the identification of different individuals with low HGS, introducing bias. The aim of this systematic review is to gather all the relevant studies that measured HGS to diagnose sarcopenia and frailty and to identify the differences between the protocols used...
October 16, 2017: BMC Geriatrics
https://www.readbyqxmd.com/read/29035972/hyperammonemia-and-proteostasis-in-cirrhosis
#11
Srinivasan Dasarathy, Maria Hatzoglou
PURPOSE OF REVIEW: Skeletal muscle loss or sarcopenia is a frequent complication of cirrhosis that adversely affects clinical outcomes. As skeletal muscle is the largest store of proteins in the body, proteostasis or protein homeostasis is required for maintenance of muscle mass. This review will focus on disordered skeletal muscle proteostasis in liver disease. RECENT FINDINGS: Increased skeletal muscle uptake of ammonia initiates responses that result in disordered proteostasis including impaired protein synthesis and increased autophagy...
October 14, 2017: Current Opinion in Clinical Nutrition and Metabolic Care
https://www.readbyqxmd.com/read/29035968/the-final-word-on-nutritional-screening-and-assessment-in-older-persons
#12
Emanuele Cereda, Nicola Veronese, Riccardo Caccialanza
PURPOSE OF REVIEW: To provide an updated perspective of how nutritional screening and assessment in older persons should be performed and reasonably implemented in the near future. RECENT FINDINGS: Although nutritional screening and assessment should be fast and easy procedures, there is increasing evidence that more time should be dedicated to them. This is probably an answer to the claim to a medicine being more preventive than curative. Increasing interest is currently given to healthy aging and nutritional status is more likely to be addressed for its implications on functional status and disability...
October 14, 2017: Current Opinion in Clinical Nutrition and Metabolic Care
https://www.readbyqxmd.com/read/29035319/nutritional-therapy-in-liver-transplantation
#13
REVIEW
Ahmed Hammad, Toshimi Kaido, Vusal Aliyev, Claudia Mandato, Shinji Uemoto
Protein-energy malnourishment is commonly encountered in patients with end-stage liver disease who undergo liver transplantation. Malnutrition may further increase morbidity, mortality and costs in the post-transplantation setting. The importance of carefully assessing the nutritional status during the work-up of patients who are candidates for liver replacement is widely recognized. The metabolic abnormalities induced by liver failure render the conventional assessment of nutritional status to be challenging...
October 16, 2017: Nutrients
https://www.readbyqxmd.com/read/29032697/the-association-of-sitting-time-with-sarcopenia-status-and-physical-performance-at-baseline-and-18-month-follow-up-in-the-residential-aged-care-setting
#14
N Reid, J W Keogh, P Swinton, P A Gardiner, Timothy Henwood
This study investigated the association of sitting time with sarcopenia and physical performance in Residential Aged Care (RAC) residents at baseline and 18-month follow-up. Measures included the International Physical Activity Questionnaire (sitting time), European Working Group definition of sarcopenia, and the Short Physical Performance Battery (physical performance). Logistic regression and linear regression analyses were used to investigate associations. For each hour of sitting the unadjusted odds ratio of sarcopenia was 1...
October 16, 2017: Journal of Aging and Physical Activity
https://www.readbyqxmd.com/read/29031484/effects-of-leucine-enriched-essential-amino-acid-and-whey-protein-bolus-dosing-upon-skeletal-muscle-protein-synthesis-at-rest-and-after-exercise-in-older-women
#15
Daniel J Wilkinson, Syed S I Bukhari, Bethan E Phillips, Marie C Limb, Jessica Cegielski, Matthew S Brook, Debbie Rankin, William K Mitchell, Hisamine Kobayashi, John P Williams, Jonathan Lund, Paul L Greenhaff, Kenneth Smith, Philip J Atherton
BACKGROUND & AIMS: Impaired anabolic responses to nutrition and exercise contribute to loss of skeletal muscle mass with ageing (sarcopenia). Here, we tested responses of muscle protein synthesis (MPS), in the under represented group of older women, to leucine-enriched essential amino acids (EAA) in comparison to a large bolus of whey protein (WP). METHODS: Twenty-four older women (65 ± 1 y) received (N = 8/group) 1.5 g leucine-enriched EAA supplements (LEAA_1...
September 23, 2017: Clinical Nutrition: Official Journal of the European Society of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/29030560/risk-of-sarcopenia-and-osteoporosis-in-male-tuberculosis-survivors-korea-national-health-and-nutrition-examination-survey
#16
Chang-Jin Choi, Whan-Seok Choi, Churl-Min Kim, Sook-Young Lee, Kyung-Soo Kim
Short-term prospective studies have suggested that pulmonary tuberculosis (TB) preludes permanent loss of lean tissue and fat mass even when TB treatment is effective. The aim of this study was to estimate the risk of sarcopenia and osteoporosis among Korean male TB survivors. Data of the population-based, Korea National Health and Nutrition Examination Survey (KNHANES) (2008-2011) were analyzed, including 3,228 males aged 50 years or older who underwent chest X-ray (CXR) and dual-energy x-ray absorptiometry (DEXA)...
October 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29029893/the-prevalence-of-sarcopenia-is-markedly-increased-in-patients-with-intestinal-failure-and-associates-with-several-risk-factors
#17
Anders Skallerup, Louis Nygaard, Søren Schou Olesen, Marianne Køhler, Lars Vinter-Jensen, Henrik Højgaard Rasmussen
BACKGROUND & AIMS: Intestinal insufficiency and intestinal failure are conditions associated with malabsorption of micro- and macronutrients. Consequently, malnutrition and ensuing alterations in body composition are common in this context and patients may have an increased risk of progressive loss of skeletal muscle mass and function (i.e. sarcopenia). We investigated the prevalence of sarcopenia in patients with intestinal insufficiency and intestinal failure and identified associated risk factors...
September 23, 2017: Clinical Nutrition: Official Journal of the European Society of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/29028650/fast-digestive-proteins-and-sarcopenia-of-aging
#18
Yves Boirie, Christelle Guillet
PURPOSE OF REVIEW: The speed of dietary protein digestion influences postprandial amino acid availability which is crucial for improving altered anabolic response of skeletal muscle one feature of sarcopenia during aging. RECENT FINDINGS: By analogy with carbohydrate and in reference to their absorption rate, dietary proteins can be classified as 'fast' or 'slow' proteins depending on matrix food structure and technological processes, which can influence amino acids availability and their subsequent metabolic actions...
October 11, 2017: Current Opinion in Clinical Nutrition and Metabolic Care
https://www.readbyqxmd.com/read/29028268/relationship-between-the-mediterranean-dietary-pattern-and-musculoskeletal-health-in-children-adolescents-and-adults-systematic-review-and-evidence-map
#19
Jean V Craig, Diane K Bunn, Richard P Hayhoe, Will O Appleyard, Elizabeth A Lenaghan, Ailsa A Welch
An understanding of the modifiable effects of diet on bone and skeletal muscle mass and strength over the life course will help inform strategies to reduce age-related fracture risk. The Mediterranean diet is rich in nutrients that may be important for optimal musculoskeletal health. The aim of this systematic review was to investigate the relationship between a Mediterranean diet and musculoskeletal outcomes (fracture, bone density, osteoporosis, sarcopenia) in any age group. Ten electronic databases were searched...
October 1, 2017: Nutrition Reviews
https://www.readbyqxmd.com/read/29024598/effects-of-long-term-exposures-to-low-iron-and-branched-chain-amino-acid-containing-diets-on-aging-skeletal-muscle-of-fisher-344-brown-norway-rats
#20
Yuho Kim, Sok Sambo Men, Chen Liang, Candace N Receno, Tom D Brutsaert, Donna L Korol, Kevin S Heffernan, Keith C DeRuisseau
Aging skeletal muscle displays an altered iron status that may promote oxidative stress and sarcopenia. A low iron (LI) containing diet could reduce muscle iron status and attenuate age-related muscle atrophy. Supplemental branched-chain amino acids (BCAA) may also alleviate sarcopenia by promoting muscle protein synthesis and iron status improvement. This study examined individual and combined effects of LI and BCAA diets on anabolic signaling and iron status in skeletal muscle of aging rats. Twenty-nine-month-old male F344BN rats consumed the following control-base diets: Control + regular iron (35 mg iron/kg) (CR; n = 11); Control + LI (~6 mg iron/kg) (CL; n = 11); 2×BCAA + regular iron (BR; n = 10); and 2×BCAA + LI (BL; n = 12) for 12 weeks...
October 12, 2017: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
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