Off-campus UMass Amherst users: To download dissertations, please use the following link to log into our proxy server with your UMass Amherst user name and password.
Non-UMass Amherst users, please click the view more button below to purchase a copy of this dissertation from Proquest.
(Some titles may also be available free of charge in our Open Access Dissertation Collection, so please check there first.)
Exercise induced muscle damage: Plasma glutathione, creatine kinase activity, and gene expression profiling of neutrophils
Abstract
Eccentric muscle contractions induce ultrastructural disruption, prolonged loss of maximal strength (MVC) and range of motion (ROM), increase in muscle soreness (SOR) and muscle proteins, and secondary damage by inflammation. The overall purpose of this dissertation research was to further examine the relationship between blood glutathione (GSH) levels and the blood creatine kinase (CK) response to eccentric exercise, and the inflammatory response, specifically neutrophil function. Study I examined the effect of resting GSH levels on CK activity after eccentric muscle contractions, and Study II examined the effect of α-lipoic acid (LA) supplementation on resting GSH levels in plasma. Study III examined the effect of eccentric muscle contractions on neutrophil function by examining gene expression of neutrophils after eccentric muscle contractions to determine which genes are up-regulated or down-regulated during initiation of inflammation. It was concluded from Study I that subjects in the low GSH group experienced less muscle damage than subjects in the high GSH group, and these changes for the low GSH group were consistent with less secondary damage due to inflammation. Study II concluded that LA supplementation for 4 weeks may not be enough to increase GSH levels in low GSH group. Study III concluded that neutrophils initiate several processes including inflammation, cytoskeletal regulation, transcription, and metabolism in response to eccentric muscle contractions with the evidence of up- or down-regulation of genes.
Subject Area
Sports medicine|Anatomy & physiology|Animals
Recommended Citation
Lee, Joohyung, "Exercise induced muscle damage: Plasma glutathione, creatine kinase activity, and gene expression profiling of neutrophils" (2004). Doctoral Dissertations Available from Proquest. AAI3136749.
https://scholarworks.umass.edu/dissertations/AAI3136749