Gast 94014
Cool Novice
- Lid geworden
- 6 sep 2011
- Berichten
- 79
- Waardering
- 36
Mijn eerste publicatie:
Eur J Endocrinol. 2015 Feb 2. pii: EJE-14-0902. [Epub ahead of print]
MECHANISMS IN ENDOCRINOLOGY: Exogenous insulin does not increase muscle protein synthesis rate when administrated systemically: a systematic review.
AbstractBackground: Though it is well appreciated that insulin plays an important role in regulating muscle protein metabolism, there is much discrepancy in the literature on the capacity of exogenous insulin administration to increase muscle protein synthesis rates in vivo in humans. Objective: To assess whether exogenous insulin administration increases muscle protein synthesis rates in young and older adults. Design: A systematic review of clinical trials was performed and the presence or absence of an increase in muscle protein synthesis rate was reported for each individual study arm. In a stepwise manner, multiple models where constructed that excluded study arms based on the following conditions: model 1) concurrent hyperaminoamino-acidemia, model 2) insulin-induced hypoaminoacidemia, model 3) supraphysiological insulin concentrations, and model 4) older, more insulin resistant, subjects. Conclusions: From the presented data in the current systematic review, we conclude that 1) exogenous insulin and amino acid administration effectively increase muscle protein synthesis, however this effect is attributed to the hyperaminoacidemia, 2) exogenous insulin administrated systemically induces hypoaminoacidemia which obviates any insulin-stimulatory effect on muscle protein synthesis, 3) exogenous insulin resulting in supraphysiological insulin levels exceeding 50,000 pmol/L may effectively augment muscle protein synthesis, 4) exogenous insulin may have a diminished effect on muscle protein synthesis in older adults due to age related anabolic resistance, and 5) exogenous insulin administrated systemically does not increase muscle protein synthesis in healthy, young adults.
Lees ook mijn blog erover met meer tekst en uitleg:
http://www.nutritiontactics.com/insulin-stimulate-muscle-growth-research-review/
Ik hoor graag wat jullie ervan denken!
Eur J Endocrinol. 2015 Feb 2. pii: EJE-14-0902. [Epub ahead of print]
MECHANISMS IN ENDOCRINOLOGY: Exogenous insulin does not increase muscle protein synthesis rate when administrated systemically: a systematic review.
Abstract
Lees ook mijn blog erover met meer tekst en uitleg:
http://www.nutritiontactics.com/insulin-stimulate-muscle-growth-research-review/
Ik hoor graag wat jullie ervan denken!