식이내 Mg 함량이 acute immobilization(IMMB) stress를 받은 흰쥐의 혈장 glucose, free fatty acid, cortisol 및 creatine phosphokinase와 심장근육, 대퇴골 및 혈장의 전해질 배분에 미치는 영향

The effect of dietary magnesium on plasma glucose, free fatty acid, cortisol and creatine phosphokinase and electrolyte distribution in cardiac muscle, femur and plasma of rats with acute immobilization stress

This study determined plasma glucose, free fatty acid (FFA), cortisol, creatine phosphokinase (CPK), calcium (Ca), magnesium (Mg), Sodium (Na), potassium (K), and Ca and Mg in heart muscle and femur. 66 Sprague-Dawley male rats were devided into two diet groups : adequate Mg group (0.05% Mg), marginal Mg group (0.005% Mg). After the rats were on experimental diets for 5weeks, rats for each group were randomly assigned to no stress, stress, stress+recovery group and 2hours of IMMB stress were administered to stress and stress+recovery group. Rats of stress group were decapitated shortly after the IMMB stress and rats of stress+recovery group were decapitated after 2hours of recovery. The following were found. 1) Plasma cortsol and CPK were significantly increased in group with stress and group with stress+recovery respectively regardless of Mg content in diet. 2) Plasma glucose and FFA and Ca in plasma, femur and cardiac muscle were not significantly different among group. 3) Plasma Mg were significantly increased with stress only in rats fed marginal Mg.