Endocrine Abstracts

Objectives: Genomic instability play a role in cancer development through different mechanisms including chromosome fragility and in particular the altered telomere length (TL). Previous studies showed that the presence of short telomeres in the blood was associated with development of sporadic head and neck, bladder, lung, renal and breast cancer. In thyroid cancer, has been demonstrated that familial form of papillary thyroid cancer (FPTC) has shorter telomeres in blood leuk...

Introduction: Angiogenesis plays an important role in the growth and processes of tumors, often indicating neovascularity. However the role of vascularization in thyroid nodules observed with power or color doppler has always been debated. Therefore, most of thyroid nodules sonographic risk classification do not consider vascularization as an important features in predicting the risk of malignancy. In the last years a new vascular imaging technique, Superb Microvascular Imagin...

Adult-onset hypothyroidism is associated with cognitive dysfunction, and a significant fraction of hypothyroid patients still shows persistent disturbances despite standard T4 replacement therapy. Experimental results showed that tissue levels of T4 metabolites, particularly T1AM, are decreased in hypothyroidism and remain low after T4 replacement. Thyroid hormones are important for the promotion of neurogenesis and neuron migration to different areas of the cerebral cortex, i...

RAP (LDL receptor associated protein) is a 44 kDa endoplasmic reticulum (ER) resident molecular chaperone. In the thyroid RAP is required for expression of megalin, an endocytic receptor responsible for transcytosis of thyroglobulin (Tg), but it also binds to Tg itself, suggesting it may affect thyroid function in various manners. Indeed, findings in RAP KO mice indicate that disruption of the RAP gene results in impaired Tg storage into the colloid, suggesting that RAP serves...