Endocrine Abstracts

Objectives: Thyroid peroxidase (TPO) is a key enzyme in the synthesis of thyroid hormones and is a target for autoimmune responses in autoimmune thyroid disease. TPO autoantibody (TPOAb) binding epitopes have been mapped on the peroxidase domain (POD) and the complement control protein like domain (CCP). This study aimed to solve the molecular structures of TPO bound to TPO antibodies.Methods: An extracellular domain (ECD) of human TPO (amino acids; aa 1...

Objectives: TSH receptor (TSHR) autoantibodies (TRAb) which mimic the actions of TSH are responsible for hyperthyroidism in Graves’ disease (GD) which is often associated with Graves’ orbitopathy (GO). K1-70 is a TSHR specific human monoclonal autoantibody which binds to the TSHR with high affinity and prevents stimulation of the TSHR by TSH and TRAb. Safety, tolerability, pharmacokinetic, pharmocodynamic and immunogenic effects of K1-70 in patients with GD were asse...

Introduction: Immunoglobulin-G4-related disease (IgG4RD) is a multidisciplinary problem due to plasmatic cells infiltration and areas of fibrosis in the affected tissues. In IgG4RD, elevation of serum IgG4 immunoglobulins is present. Clinically, the disease is mainly manifested as: autoimmune pancreatitis, salivary gland involvement, sclerosing cholangitis, lymphadenopathy, lachrymal gland enlargement, retroperitoneal fibrosis or orbital pseudotumor. The simultaneous involveme...

Introduction: Hypopituitarism is characterized by the absence of pituitary hormones. Depending on what pituitary hormones are missing and what is the etiology of hypopituitarism, its clinical manifestation varies. Apart from evident symptoms and signs of hypopituitarism due to hormonal insufficiencies, several studies reveal that long-standing hypopituitarism, including particularly absence of GH, is related to higher risk of metabolic syndrome.Objective...

Introduction: Primary hyperparathyroidism (PHPT) is a common endocrine disorder. Beside renal and skeletal complications, it has a wide variety of nonspecific symptoms from other organs that may mimic other diseases and delay the diagnosis. Nowadays PHPT evolves to less-symptomatic.Aim: The aim is to revise symptomatology profile of PHPT in a single region of Poland; and to help early PHPT diagnosis – encouraging interdisciplinary contact between me...

Diagnostic procedures reveal that majority of incidentally found adrenal tumours (adrenal incidentalomas, AI) appear to be benign adenomas. However, AI accompanying malignant tumours must be diagnosed very carefully to take a proper decision concerning their management. In the registry of the Department of Endocrinology in Warsaw, there are 1888 patients (1388 women, 500 men, F/M ratio 2.8) with AI, 10–87 years old. Primary malignant tumours were diagnosed in 155 patients...

Introduction: In connection with usage of allogeneic bone marrow transplantations (BMT) there rises the problem of transfer of lymphocytes capable of induction autoimmunological reactions in recipient.The aim of our study: Is a presentation of ultrastructural changes in thyroid tissue as the pathogenesis of autoimmunological thyroid disease in a recipient following BMT from donor with Graves’ disease after total surgical treatment.<p class="abst...

Introduction: The molecular events involved in the formation of parathyroid adenomas are not well understood. Two genes, cyclin D1 (CCND1) and MEN-1, have been established as having major roles in parathyroid tumorigenesis. Tumor suppressor gene HRPT2 is frequently mutated in parathyroid carcinoma. The aim of our study was to analyze HRPT2 expression in parathyroid adenomas and in residual normal/atrophic parathyroid tissue and to relate it to other...

Adiponectin is a soluble protein produced solely by matured adipocytes. Adipogenesis contributes to the pathogenesis of GO in many ways including a direct effect on proptosis due to increased volume of mature adipocytes.The aim of the study was to estimate an influence of immunosupresive and anti-inflammatory treatment using systemic corticotherapy combined with orbital radiotherapy on serum adiponectin level in GO patients. The study was accepted by Eth...

Clin Endocrinology (Oxf), 2022, 96, 878-887 (DOI: https://doi.org/10.1111/cen.14681): ...