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HMB supplementation

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https://www.readbyqxmd.com/read/28617846/a-metabolite-of-leucine-%C3%AE-hydroxy-%C3%AE-methylbutyrate-given-to-sows-during-pregnancy-alters-bone-development-of-their-newborn-offspring-by-hormonal-modulation
#1
Tomasz Blicharski, Ewa Tomaszewska, Piotr Dobrowolski, Monika Hułas-Stasiak, Siemowit Muszyński
The effects of dietary β-hydroxy-β-methylbutyrate (HMB) supplementation during gestation on bone, growth plate, and articular cartilage in newborns were determined. Thermal analysis of articular cartilage was performed to examine the structural changes in collagen. At day 70 of gestation, a total of 12 sows (Large White Polish breed, at the second parity) were randomly assigned to two groups, with each group receiving either a basal diet or the same diet supplemented with 0.2 g/day HMB until the 90th day...
2017: PloS One
https://www.readbyqxmd.com/read/28554316/beta-hydroxy-beta-methyl-butyrate-hmb-from-experimental-data-to-clinical-evidence-in-sarcopenia
#2
Alfonso J Cruz-Jentoft
β-hydroxy-β-methylbutyrate (HMB) is a metabolite derived from leucine and its ketoacid alpha-ketoisocaproate. Leucine has a role in regulating protein synthesis in muscle cells, and HMB seems to be a key active metabolite in such regulation. HMB has been shown to modulate muscle protein degradation by inhibiting the ubiquitin-proteasome proteolytic pathway, to up-regulate protein synthesis via the mTOR pathway, and to stabilize cell membranes via the rate limiting enzyme to cholesterol synthesis HMG- coenzyme A reductase...
May 28, 2017: Current Protein & Peptide Science
https://www.readbyqxmd.com/read/28539168/effectiveness-of-nutritional-supplementation-on-sarcopenia-and-recovery-in-hip-fracture-patients-a-multi-centre-randomized-trial
#3
Vincenzo Malafarina, Francisco Uriz-Otano, Concetta Malafarina, J Alfredo Martinez, M Angeles Zulet
BACKGROUND AND OBJECTIVES: Functional deterioration and reduced mobility in elderly patients with a hip fracture are associated with a loss of both muscle mass and function (sarcopenia). The aim of this study was to assess whether oral nutritional supplementation (ONS) improves muscle mass and nutritional markers (BMI, proteins) in elderly patients with hip fracture. METHODS: Patients aged 65 years and over with hip fractures admitted to either of two rehabilitation facilities were included...
July 2017: Maturitas
https://www.readbyqxmd.com/read/28493406/beta-hydroxy-beta-methylbutyrate-supplementation-and-skeletal-muscle-in-healthy-and-muscle-wasting-conditions
#4
REVIEW
Milan Holeček
Beta-hydroxy-beta-methylbutyrate (HMB) is a metabolite of the essential amino acid leucine that has been reported to have anabolic effects on protein metabolism. The aims of this article were to summarize the results of studies of the effects of HMB on skeletal muscle and to examine the evidence for the rationale to use HMB as a nutritional supplement to exert beneficial effects on muscle mass and function in various conditions of health and disease. The data presented here indicate that the beneficial effects of HMB have been well characterized in strength-power and endurance exercise...
May 10, 2017: Journal of Cachexia, Sarcopenia and Muscle
https://www.readbyqxmd.com/read/28448086/effects-of-running-wheel-activity-and-dietary-hmb-and-%C3%AE-alanine-co-supplementation-on-muscle-quality-in-aged-male-rats
#5
D W Russ, C Acksel, K W McCorkle, N K Edens, S M Garvey
OBJECTIVE: Loss of skeletal muscle function is linked to increased risk for loss of health and independence in older adults. Dietary interventions that can enhance aging muscle function, alone or in combination with exercise, may offer an effective way to reduce these risks. The goal of this study was to evaluate the muscular effects of beta-hydroxy-beta-methylbutyrate (HMB) and beta-alanine (β-Ala) co-supplementation in aged Sprague-Dawley rats with voluntary access to running wheels (RW)...
2017: Journal of Nutrition, Health & Aging
https://www.readbyqxmd.com/read/28408697/the-combined-effect-of-bacillus-coagulans-gbi-30-6086-and-hmb-supplementation-on-muscle-integrity-and-cytokine-response-during-intense-military-training
#6
Yftach Gepner, Jay R Hoffman, Elad Shemesh, Jeffrey R Stout, David D Church, Alyssa N Varanoske, Hila Zelicha, Ilan Shelef, Yacov Chen, Hagai Frankel, Ishay Ostfeld
The purpose of this study was to compare the co-administration of the probiotic Bacillus coagulans GBI-30, 6086 (BC30) with β-hydroxy-β-methylbutyrate (HMB) calcium (CaHMB) to CaHMB alone on the inflammatory response and muscle integrity during 40-days of intense military training. Soldiers were randomly assigned to one of two groups: CaHMB with BC30 (CaHMBBC30; n=9) or CaHMB with placebo (CaHMBPL, n=9). A third group of participants served as a control (CTL; n=8). During the first 28 days soldiers were garrisoned on base and participated in the same training tasks...
April 13, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/28301440/changes-in-body-composition-and-performance-with-supplemental-hmb-fa-atp
#7
Stuart M Phillips, Alan A Aragon, Paul J Arciero, Shawn M Arent, Graeme L Close, D Lee Hamilton, Eric R Helms, Menno Henselmans, Jeremy P Loenneke, Layne E Norton, Michael J Ormsbee, Craig Sale, Brad J Schoenfeld, Abbie E SmithRyan, Kevin D Tipton, Matthew D Vukovich, Colin Wilborn, Darryn S Willoughby
No abstract text is available yet for this article.
March 13, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28074127/transfer-of-%C3%AE-hydroxy-%C3%AE-methylbutyrate-from-sows-to-their-offspring-and-its-impact-on-muscle-fiber-type-transformation-and-performance-in-pigs
#8
Haifeng Wan, Jiatao Zhu, Caimei Wu, Pan Zhou, Yong Shen, Yan Lin, Shengyu Xu, Lianqiang Che, Bin Feng, Jian Li, Zhengfeng Fang, De Wu
BACKGROUND: Previous studies suggested that supplementation of lactating sows with β-hydroxy-β-methylbutyrate (HMB) could improve the performance of weaning pigs, but there were little information in the muscle fiber type transformation of the offspring and the subsequent performance in pigs from weaning through finishing in response to maternal HMB consumption. The purpose of this study was to determine the effect of supplementing lactating sows with HMB on skeletal muscle fiber type transformation and growth of the offspring during d 28 and 180 after birth...
2017: Journal of Animal Science and Biotechnology
https://www.readbyqxmd.com/read/28038406/beta-hydroxy-beta-methylbutyrate-hmb-ameliorates-age-related-deficits-in-water-maze-performance-especially-in-male-rats
#9
Daniel G Kougias, Emily R Hankosky, Joshua M Gulley, Janice M Juraska
Beta-hydroxy-beta-methylbutyrate (HMB) is commonly supplemented to maintain muscle in elderly and clinical populations and has potential as a nootropic. Previously, we have shown that in both male and female rats, long-term HMB supplementation prevents age-related dendritic shrinkage within the medial prefrontal cortex (mPFC) and improves cognitive flexibility and working memory performance that are both age- and sex-specific. In this study, we further explore the cognitive effects by assessing visuospatial learning and memory with the Morris water maze...
March 1, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/27934654/efficacy-and-safety-of-leucine-supplementation-in-the-elderly
#10
REVIEW
Michael S Borack, Elena Volpi
Leucine supplementation has grown in popularity due to the discovery of its anabolic effects on cell signaling and protein synthesis in muscle. The current recommendation is a minimum intake of 55 mg ⋅ kg(-1)(.) d(-1) Leucine acutely stimulates skeletal muscle anabolism and can overcome the anabolic resistance of aging. The value of chronic leucine ingestion for muscle growth is still unclear. Most of the research into leucine consumption has focused on efficacy. To our knowledge, very few studies have sought to determine the maximum safe level of intake...
December 2016: Journal of Nutrition
https://www.readbyqxmd.com/read/27897391/a-systematic-review-on-the-role-of-vitamins-minerals-proteins-and-other-supplements-for-the-treatment-of-cachexia-in-cancer-a-european-palliative-care-research-centre-cachexia-project
#11
REVIEW
Mochamat, Henning Cuhls, Milka Marinova, Stein Kaasa, Christiane Stieber, Rupert Conrad, Lukas Radbruch, Martin Mücke
We provide a systematic review to support the European Palliative Care Research Collaboration development of clinical guidelines for cancer patients suffering from cachexia. CENTRAL, MEDLINE, PsycINFO, ClinicalTrials.gov, and a selection of cancer journals have been searched up until 15 April 2016. The systematic literature research yielded 4214 publications with 21 of these included in the final evaluation. Regarding minerals, our search identified only one study examining the use of magnesium with no effect on weight loss...
February 2017: Journal of Cachexia, Sarcopenia and Muscle
https://www.readbyqxmd.com/read/27887984/impact-of-%C3%AE-hydroxy-%C3%AE-methylbutyrate-hmb-on-age-related-functional-deficits-in-mice
#12
Michael Munroe, Yair Pincu, Jennifer Merritt, Adam Cobert, Ryan Brander, Tor Jensen, Justin Rhodes, Marni D Boppart
β-Hydroxy β-methylbutyrate (HMB) is a metabolite of the essential amino acid leucine. Recent studies demonstrate a decline in plasma HMB concentrations in humans across the lifespan, and HMB supplementation may be able to preserve muscle mass and strength in older adults. However, the impact of HMB supplementation on hippocampal neurogenesis and cognition remains largely unexplored. The purpose of this study was to simultaneously evaluate the impact of HMB on muscle strength, neurogenesis and cognition in young and aged mice...
January 2017: Experimental Gerontology
https://www.readbyqxmd.com/read/27820726/%C3%AE-hydroxy-%C3%AE-methylbutyrate-hmb-supplementation-effects-on-body-mass-and-performance-in-elite-male-rugby-union-players
#13
Nicholas D McIntosh, Thomas D Love, Jillian Haszard, Hamish Osborne, Katherine E Black
Pre-season is characterized by high training volumes with short recovery periods β-hydroxy β-methylbutyrate (HMB) has been postulated to assist with recovery. HMB has been shown to improve strength and body composition amongst untrained groups the benefits of HMB amongst trained populations are unclear due to the methodologies employed. This randomized control trail determined the effects of 11 weeks HMB supplementation on body mass and performance measures in 27 elite rugby players. HMB group (n=13) mean±SD age 20...
October 27, 2016: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/27726925/the-effect-of-hmb-ingestion-on-the-igf-i-and-igf-binding-protein-response-to-high-intensity-military-training
#14
Michael J Redd, Jay R Hoffman, Yftach Gepner, Jeffrey R Stout, Mattan W Hoffman, Daniel Ben-Dov, Shany Funk, David D Church, Guy Avital, Yacov Chen, Hagai Frankel, Ishay Ostfeld
OBJECTIVE: Insulin-like growth factor-I (IGF-I) is a metabolic and anabolic biomarker that has been proposed to reflect physiological adaptations resulting from multistressor environments. The bioactivity of IGF-I is regulated by seven different insulin-like growth factor binding proteins (IGFBPs) which act not only as carriers of IGF-1, but also function as a modulator of IGF-I availability and activity. Supplementing with β-hydroxy-β-methylbutyrate (HMB) has been shown to enhance physiological outcomes associated with intense training, and has been reported to augment the IGF-1 response...
February 2017: Growth Hormone & IGF Research
https://www.readbyqxmd.com/read/27691998/characterisation-of-equine-satellite-cell-transcriptomic-profile-response-to-%C3%AE-hydroxy-%C3%AE-methylbutyrate-hmb
#15
Katarzyna A Szcześniak, Anna Ciecierska, Piotr Ostaszewski, Tomasz Sadkowski
β-Hydroxy-β-methylbutyrate (HMB) is a popular ergogenic aid used by human athletes and as a supplement to sport horses, because of its ability to aid muscle recovery, improve performance and body composition. Recent findings suggest that HMB may stimulate satellite cells and affect expressions of genes regulating skeletal muscle cell growth. Despite the scientific data showing benefits of HMB supplementation in horses, no previous study has explained the mechanism of action of HMB in this species. The aim of this study was to reveal the molecular background of HMB action on equine skeletal muscle by investigating the transcriptomic profile changes induced by HMB in equine satellite cells in vitro...
October 2016: British Journal of Nutrition
https://www.readbyqxmd.com/read/27648945/downregulation-of-mir-150-expression-by-dna-hypermethylation-is-associated-with-high-2-hydroxy-4-methylthio-butanoic-acid-induced-hepatic-cholesterol-accumulation-in-nursery-piglets
#16
Yimin Jia, Mingfa Ling, Luchu Zhang, Shuxia Jiang, Yusheng Sha, Ruqian Zhao
Excess 2-hydroxy-(4-methylthio)butanoic acid (HMB) supplementation induces hyperhomocysteinemia, which contributes to hepatic cholesterol accumulation. However, it is unclear whether and how high levels of HMB break hepatic cholesterol homeostasis in nursery piglets. In this study, HMB oversupplementation suppressed food intake and decreased body weight in nursery piglets. Hyperhomocysteinemia and higher hepatic cholesterol accumulation were observed in HMB groups. Accordingly, HMB significantly increased the protein content of 3-hydroxy-3-methylglutaryl coenzyme A reductase (HMGCR) and glycine N-methyltransferase (GNMT) but decreased that of acyl-coenzyme A:cholesterol acyltransferase-1 (ACAT1)...
October 12, 2016: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/27584245/hmb-supplementation-may-affect-cytokine-and-inflammatory-response-during-high-intensity-military-training-631-board-3-june-1-1-00-pm-3-00-pm
#17
Jay R Hoffman, Yiftach Gepner, Jeffrey R Stout, Mattan W Hoffman, Daniel Ben-Dov, Shany Funk, Ido Daimont, Adam J Jajtner, Jeremy R Townsend, Ilan Shelef, Guy Avital, Yacov Chen, Hagai Frankel, Ishay Ostfeld
No abstract text is available yet for this article.
May 2016: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/27474977/the-effect-of-increasing-concentrations-of-dl-methionine-and-2-hydroxy-4-methylthio-butanoic-acid-on-hepatic-genes-controlling-methionine-regeneration-and-gluconeogenesis
#18
Qian Zhang, Sandra J Bertics, N Daniel Luchini, Heather M White
Metabolizable methionine (Met) concentrations can be increased by feeding rumen-protected dl-Met or the isopropyl ester of 2-hydroxy-4-(methylthio) butanoic acid (HMBi). Hepatic responses to increasing concentrations of metabolizable Met as a result of supplementation of different Met sources have not been comparatively examined. The objective of this experiment was to examine the regulation of key genes for Met metabolism, gluconeogenesis, and fatty acid oxidation in response to increasing concentrations of dl-Met or 2-hydroxy-4-(methylthio) butanoic acid (HMB) in bovine primary hepatocytes...
October 2016: Journal of Dairy Science
https://www.readbyqxmd.com/read/27359494/effect-of-14-days-hmb-supplement-on-osteoclastogenesis-related-protein-expression-and-bone-metabolism-regulate-cytokines-level-in-healthy-college-male-239-board-76-june-1-9-30-am-11-00-am
#19
Yao-Hung Kuo, Yu-Wen Weng, Chih-Li Lin, Chen-Kang Chang, Wei Hung
No abstract text is available yet for this article.
May 2016: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/27324808/skeletal-muscle-regulates-metabolism-via-interorgan-crosstalk-roles-in-health-and-disease
#20
REVIEW
Josep M Argilés, Nefertiti Campos, José M Lopez-Pedrosa, Ricardo Rueda, Leocadio Rodriguez-Mañas
Skeletal muscle is recognized as vital to physical movement, posture, and breathing. In a less known but critically important role, muscle influences energy and protein metabolism throughout the body. Muscle is a primary site for glucose uptake and storage, and it is also a reservoir of amino acids stored as protein. Amino acids are released when supplies are needed elsewhere in the body. These conditions occur with acute and chronic diseases, which decrease dietary intake while increasing metabolic needs. Such metabolic shifts lead to the muscle loss associated with sarcopenia and cachexia, resulting in a variety of adverse health and economic consequences...
September 1, 2016: Journal of the American Medical Directors Association
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