Endocrine Abstracts

Recent data have shown that, in parallel to its transcriptional action down-regulating TSH synthesis, triiodothyronine (T3) also acts on posttranscriptional steps of beta TSH synthesis, reducing the polyadenylation and translational rate of the beta TSH mRNA, when acutely administered to thyroidectomized rats. This study aimed to investigate whether these effects also occur in TalphaT1 cells, and if they are dependent on gene transcription, which would characterize ...

Several studies demonstrated that the thyroid hormones (TH) downregulate the transcriptional rate of beta and alpha TSH subunits. Recent data showed that T3 also acts posttranscriptionally reducing the polyadenylation and translational rate of the beta TSH mRNA, when acutely administered to thyroidectomized (Tx) rats. This study aimed to investigate whether similar effects occur for the alpha subunit synthesis after acute administration of T3 or T4</...

67 y/o old female, with long history of hyperthyroidism, without treatment and hypertension. Two months prior to admission, she received amiodarone 200 mg daily due to cardiac arrhythmia. One week prior to admission, she developed symptoms of Congestive Heart Failure and weight loss. Family history: hyperthyroidism in two sisters. Physical examination: acutely ill, thin female, in moderate respiratory distress. Alert, oriented x 3.BP: 155/119 mmHg HR: 150.Prominent findings: m...

51 y/o female with past medical history of migraine headache, brought to UR because of hypoactivity, generalized weakness, confusion, lack of balance and dysarthria since one day of evolution. No medications. No Habits. Past history: negative for hypertension, cardiac disease or dyslipidemia. Physical examination: normal vital signs and weight. Alert, awake, and oriented only in person. Palpable nontender left thyroid lobe. Bilateral hyperreflexia.Labs: ...

Introduction: High circulating levels of some but not all unsaturated fatty acids (UFAs) can be related with reduced insulin sensitivity and glucose uptake in skeletal muscle. The real mechanisms by which UFAs impair the insulin sensitivity need to be clarified; nevertheless the UFA’s effects in the regulation of activity and/or expression of some transcriptional factors such as, nuclear factor κB (NFκB), hypoxia inducible factor-1a (HIF-1a), peroxisome prolifer...