Endocrine Abstracts

Introduction: Rituximab is indicated in patients with active rheumatoid arthritis (RA), which through the Fab domain, binds to the CD20 antigen on the surface of B lymphocytes, generating lysis of B cells, present in the thyroid, by cytotoxicity dependent on complement, as a result of the binding of C1q, mediated by the Fc domain, destroying the thyroid follicles, by infiltration of inflammatory cells (1) (2).Objective: Describe the characteristics of pa...

Hyperthyroidism during pregnancy is determined by decreased thyroid stimulating hormone (TSH), and high levels of thyroid hormones: thyroxine (T4), triiodothyronine (T3), being a complication in 1–2 women per 1,000 pregnancies, and occurs first as Graves’ disease in 0.1–1% of pregnancies. There are specific reference ranges of THS and free T4 for each population and each trimester. For the medical management in the first trimeste...

Introduction: Non-classic congenital adrenal hyperplasia (NCCAH) is an autosomal recessive disorder, that affects adrenal steroidogenesis, and it is characterized by an enzymatic defect in corticosteroids biosynthesis. NCCAH diagnosis is based on the determination of 17a-hydroxiprogesterone (17a-OHP) basal levels, and levels after stimulation with adrenocorticotropic hormone (ACTH), and it is confirmed with molecular testing. Treatment is still controversial, and it must be in...