OBJECTIVES The expression of iNOS mRNA and protein levels was studied in hypothyroid rat cerebral cortex during early days after postnatal life. METHOD The homogenate of the cerebral cortex was examined using Real-time reverse transcription polymerase chain reaction (real-time RT PCR) and Western blot analysis. RESULT ΔCt in hypothyroid group on day 7, 14, 21 was 18.89±0.92, 18.83±0.99, 16....

Hypothyroid rats were examined with conventional renal clearance and micropuncture techniques to elicit the mechanism and site within the nephron responsible for the increased salt and water excretion observed in these animals. When compared with age-matched control rats, a decrease in inulin clearance of 30% (P < 0.001) and in Hippuran clearance of 32% (P < 0.005) was observed in the hypothyro...

@Adrenergic stimulation of adenylate cyclase activity and 8-adrenergic receptor status were assessed in whole homogenates and various subcellular fractions of isolated hepatocytes obtained from hypothyroid or euthyroid rats. Hypothyroid rat hepatocytes were previously shown to display a potentiated 8-adrenergic stimulation of cyclic AMP accumulation and activation of glycogen phosphorylase (Mal...

Introduction: Fasting during the holy month of Ramadan is an obligation for all adult, healthy Muslims. As several studies have indicated, both fasting and energy restriction can alter thyroid hormone metabolism and affect the clinical features and well-being of hypothyroid patients. Hypothyroidism is more prevalent among women and the elderly. Its prevalence has been reported to be 4-8% of the...

The immune responses of hypothyroid dogs to canine thyroglobulin (cTg) were evaluated for the proliferative ability of peripheral blood mononuclear cells (PBMC). PBMC from three hypothyroid dogs with high titers of thyroglobulin autoantibody (TgAA) and 3 clinically normal dogs were cultured with 5, 10, or 20 microg/ml of cTg for 72 hr. The proliferative responses of the cells were determined by...

In previous studies examining the role of glucocorticoids and thyroid hormone on the maturation of the Na(+)/H(+) antiporter (NHE3), we found attenuation in the maturational increase in proximal tubule apical Na(+)/H(+) antiporter activity but no change in NHE3 mRNA abundance in either glucocorticoid-deficient or hypothyroid rats. In addition, prevention of the maturational increase in either h...

Hypothyroidism significantly reduced the mean amplitude and increased the mean frequency of spontaneous rhythmic contractions in 18 day pregnant rat uterus. Nifedipine (10(-12)-10(-9) M) and diltiazem (10(-10)-10(-6) M) caused concentration related inhibition of the myogenic responses of the uterine strips obtained from both pregnant and hypothyroid state. However, nifedipine was less potent (I...

OBJECTIVES Many of the signs of hypothyroidism, affect the skin as well as the genital system of affected female cases. The aim of this study is to highlight the presenting dermatologic and gynecologic manifestations of firstly-diagnosed hypothyroid females. PATIENTS AND METHODS This is a case control study that included 150 patients presenting for gynecological consultation. Out of them, 60 ...

There is evidence for the existence of developmental changes in expression of troponin I (TNI) in cardiac thin filaments; however, regulation of TNI expression has not been described. We tested whether thyroid state affects expression of TNI using neonatal and adult rats made hypothyroid by treatment with 6-n-propyl-2-thiouracil. Polyacrylamide gels of myofibrils from hearts of 7-, 14-, 21-, an...

RIVLIN v-9 RICHARD S., MARTHA OSNOS, SUSAN ROSENTHAL, AND NOBERT I. HENKIN. Abnormalities in taste preference in hypothyroid rats. Am. J. Physiol. 232(l): ESO-E84, 1977 or Am. J. Physiol.: Endocrinol. Metab. Gastrointest. Physiol. l(1): E80384. 1977. Rats made hypothyroid by administration of radioactive iodine and age-matched controls were individually caged and offered a choice between either...