SLC30A8 nonsynonymous variant is associated with recovery following exercise and skeletal muscle size and strength.

Genome-wide association studies have identified thousands of variants that are associated with numerous phenotypes. One such variant, rs13266634, a nonsynonymous single nucleotide polymorphism in the solute carrier family 30 (zinc transporter) member eight gene, is associated with a 53% increase in the risk of developing type 2 diabetes (T2D). We hypothesized that individuals with the protective allele against T2D would show a positive response to short-term and long-term resistance exercise.

CCL2 and CCR2 polymorphisms are associated with markers of exercise-induced skeletal muscle damage.

Novel eccentric (lengthening contraction) exercise typically results in muscle damage, which manifests as prolonged muscle dysfunction, delayed onset muscle soreness, and leakage of muscle proteins into circulation. There is a large degree of variability in the damage response of individuals to eccentric exercise, with higher responders at risk for potentially fatal rhabdomyolysis. We hypothesized that single nucleotide polymorphisms (SNPs) in chemokine ligand 2 (CCL2) and its receptor chemokine receptor 2 (CCR2) associate with the high degrees of variability in the muscle damage response.

Efficacy of rosuvastatin (5 mg and 10 mg) twice a week in patients intolerant to daily statins.

The aim of this study was to evaluate the efficacy of rosuvastatin twice weekly in 40 patients intolerant to daily statins. Rosuvastatin twice weekly alone or added to other lipid-lowering medications decreased total cholesterol by 19%, low-density lipoprotein cholesterol by 26%, and triglycerides by 14% (p<0.01 for all).

The creatine kinase response to eccentric exercise with atorvastatin 10 mg or 80 mg.

Introduction: Hydroxy-methyl-glutaryl co-enzyme A (HMG-CoA) reductase inhibitors or statins are well tolerated by most patients, but can produce a variety of skeletal muscle problems including myalgia, creatine kinase (CK) elevations and clinically important rhabdomyolysis. We have previously demonstrated that the CK response to downhill walking is greater in statin compared to placebo treated subjects. This study examined the CK response to downhill walking in subjects treated with low and high dose of atorvastatin.

Serum creatine kinase levels and renal function measures in exertional muscle damage.

Purpose: Serum creatine kinase (CK) levels are commonly used to judge the severity of muscle damage and to determine when to hospitalize patients who present with symptoms of exertional rhabdomyolysis in order to prevent renal failure. However, no CK standard exists because of the limited information available regarding exercise-induced CK elevation and renal function. This study determined the magnitude of CK elevation and the effect on renal function produced by exercise in a large subject group.