Modifications in the Ca(2+)-uptake and -release functions of the sarcoplasmic reticulum (SR) may be a major component of the mechanisms underlying thyroid state-dependent alterations in heart rate, myocardial contractility, and metabolism. We investigated the influence of hyperthyroid state on the expression and functional properties of the ryanodine receptor (RyR), a major protein in the junct...

Objective: Antibodies to eye muscle tissue are demonstrated in hyperthyroid Graves’ disease but their pathognomonic roles have not been clarified yet. We suggest that type 2 deiodinase (DIO2) enzyme can be a target between orbital and thyroid diseases in hyperthyroid Graves’ ophthalmopathy. In this study, the relationship between anti-eye muscle membrane (EyeM) and cytosol (EyeC) IgG, IgA and I...

Ischemic postconditioning (IPost) could decrease ischemia-reperfusion (IR) injury. It has not yet reported whether IPost is useful when ischemic heart disease is accompanied with co-morbidities like hyperthyroidism. The aim of this study was to examine the effect of IPost on myocardial IR injury in hyperthyroid male rats. Hyperthyroidism was induced with administration of thyroxine in drinking ...

BACKGROUND Hyperthyroidism increases heart rate, contractility, cardiac output, and metabolic rate. It is also accompanied by alterations in the regulation of cardiac substrate use. Specifically, hyperthyroidism increases the ex vivo activity of pyruvate dehydrogenase kinase, thereby inhibiting glucose oxidation via pyruvate dehydrogenase. Cardiac hypertrophy is another effect of hyperthyroidis...

Managing crisis thyroid in toxic multi nodular pregnancy is challenging. This case objective to highlight comprehensive treatment going safe mother & baby’s life. A woman, 43 years old 13th week of her third pregnancy, admitted emergency room with palpitating and vomiting as chief complaints. Her complaints had started since she stopped taking propylthiouracyl. She used take it diagnosed hy...

The administration of thiouracil induced a rise and administration of thyroid substance a decrease of the plasma cholesterol concentration in rats. The concentration and daily output of bile cholesterol was markedly reduced in hypothyroid rats and markedly increased in hyperthyroid rats. Evidence is presented which suggests that the rate of synthesis of cholesterol is significantly increased in...

to 2 days were all elevated (1.17—1.37) and within the hyperthyroid range for adults. Values in infants age 2 weeks and older and in children age 1—15years all fell within the normal adult range. These findings suggest that the ETR can be used as an ancillary measure of thyroid func. tion in infants and children. In the immediate postpartum period, however, ETR values may be normally in the...