Endocrine Abstracts

Purpose: Pheochromocytomas (PCs) and paragangliomas (PGLs) are rare neuroendocrine tumors arising from chromaffin cells of the adrenal medulla and the sympathetic/parasympathetic neural ganglia, respectively. Metastatic PCs/PGLs occur in about 5-26% of cases. Their management and diagnosis still remain a challenge due to their heterogeneity, the absence of guidelines and the few prognostic tools.Aim: The aim of this study was to describe clinical and gen...

Introduction: Glucocroticoids (GCs) which are routinely used in the treatment of Acute Lymphocytic Leukemia (ALL), found recently to be beneficial in a subset of AML patients resistant to chemotherapy, by promoting leukemia cells apoptosis. Current studies indicate that vitamin D (VitD) deficiency is highly prevalent among AML patients, posing vitamin D as a therapeutic supplementation. Our previous study demonstrated that VitD exerts inhibitory effect on Dexamethasone-induced...

IntroductionEndometriosis is a dysplastic disease affecting approximately 7–10% of reproductive–aged women. It is defined as the presence of endometrial-like tissue outside the uterine cavity. Disruption of circadian rhythm in night shift worker has been associated with menstrual irregularity and increased chance of developing endometriosis and ovarian tumors. The central circadian clock system located in hypothalamic suprachiasmatic nucleus (...

PurposeThere is a continuity of changes ranging from enterochromaffin‐like (ECL) cell hyperplasia to type 1 gastric neuroendocrine neoplasms (GNEN1) with important clinical implications. Although the effect of the circadian clock system on tumorigenesis has been addressed, the role of the peripheral clock system in the transition from ECL-cell hyperplasia to GNEN1 remains to be explored.MethodsSix patie...

Introduction: Postsurgical hypoparathyroidism, (postHypoP), is a common complication of total thyroidectomy. We studied the variation of biochemical and hormonal parameters in patients who underwent total thyroidectomy.Design: The study included 106 females of a mean age (±S.D.) 51.03 (±13.42) years who underwent total thyroidectomy for multinodular goiter. We estimated the value of 25(OH)vitD, PTH, CT, adjusted Ca, P, and alkali...

Introduction: The majority of adrenal neoplasms are benign while adrenocortical carcinomas (ACC) are rare with poor prognosis. Previous studies indicated that estrogens play important role in the etiology and progression of adrenocortical tumors. Estrogens exert genomic activities trough the estrogen-receptor (ER) subtypes α and β, while the non-genomic effects are mediated by membrane-bound-G-protein-coupled-ER-30 (GPR30). Although estrogens induce cancer cell ...

Introduction: The majority of adrenal neoplasms are benign while adrenocortical carcinomas (ACC) are rare with poor prognosis. Previous studies indicated that estrogens play important role in the etiology and progression of adrenocortical tumors. Estrogens exert genomic activities trough the estrogen-receptor (ER) subtypes α and β, while the non-genomic effects are mediated by membrane-bound-G-protein-coupled-ER-30 (GPR30). Although estrogens induce cancer cell ...

BackgroundRecent data have shown the anti-apoptotic effect of Chchd2 mitochondrial protein through the Bcl-2/Bax pathway in various cancers. Bax is regulated primarily by proteins-members of Bcl-2 family and mainly the Bcl-2 protein, which has been found to prevent Bax from accumulating in mitochondria. In response to apoptotic stimuli, Chchd2 decreases and loses its mitochondria localization accompanying by decreased Bcl-2/Bax interaction and increased ...

BackgroundAdrenocortical carcinoma (ACC) is a rare but very aggressive endocrine malignancy with poor survival. Histopathology is important for diagnosis, while in some cases immunohistochemical markers and gene profiling of the resected tumor may be superior to current staging systems to determine prognosis.AimHerein, we aimed to present the 20year experience at a tertiary Hospital in patients with ACCs and ...