Endocrine Abstracts

Introduction: Hyponatraemia is the commonest electrolyte disturbance, but is not common in young people. Here, we describe a female subject, with recurrent unexplained symptomatic hyponatraemia in whom we considered the possibility of an activating mutation in the arginine vasopressin receptor type 2 (AVPR2) as a rare cause of Syndrome of Inappropriate Anti-Diuresis (SIAD).Case: A 39 year old woman had a history of unexplained hyponatraemia (serum sodium...

Introduction: Hyponatraemia is the commonest electrolyte disturbance, but is not common in young people. Here, we describe a female subject, with recurrent unexplained symptomatic hyponatraemia in whom we considered the possibility of an activating mutation in the arginine vasopressin receptor type 2 (AVPR2) as a rare cause of Syndrome of Inappropriate Anti-Diuresis (SIAD).Case: A 39 year old woman had a history of unexplained hyponatraemia (serum sodium...

Section 1: Case history: A 38 year old female was identified as carrying a heterozygous pathogenic MEN1 variant (c.13404delG) through predictive testing, following a diagnosis of familial hyperparathyroidism.Section 2: Investigations: Routine screening for hyperparathyroidism and pituitary disease was negative. However, a CT thorax–abdomen–pelvis revealed a 41 mm pancreatic tail mass. Biopsy via endoscopic ultrasound confirmed a well-d...

Due to overlapping clinical and biochemical features, disorders now known to be molecular defects in the parathyroid hormone (PTH)-receptor signalling pathway, such as Albright Hereditary Osteodystrophy (AHO), pseudohypoparathyroidism (PHP), and acrodysostosis, have been historically confused. AHO is a complex disorder defined by the presence of a short adult stature relative to the height of an unaffected parent and brachydactyly type E, as well as a stocky build, round face,...

A 38 year old female was identified as carrying a heterozygous pathogenic MEN1 variant (c.13404delG) through predictive testing, following a diagnosis of familial hyperparathyroidism. Routine screening for hyperparathyroidism and pituitary disease was negative. However, a CT thorax-abdomen-pelvis revealed a 41 mm pancreatic tail mass. Biopsy via endoscopic ultrasound confirmed a well-differentiated (grade 1) pancreatic neuroendocrine tumour (pNET) with MIB1<1%. Bi...

Pancreatic beta cell senescence is one of the recent explanations for theincreased prevalence of type 2 diabetes in the elderly. Aging may exert a distinct influence on pancreatic β cell turnover, regeneration capacity and function. Oxidative stresses induced by metabolic stresses reduce pancreatic beta cell mass and secretion. We investigated how metabolic stresses effect on pancreatic beta cell senescence. INS-1 cells were exposed to 33mM glucose (glucotoxicity: high gl...

Beta cell senescence is being regarded as the one of the mechanisms of beta cell dysfunction. Melatonin secreted primarily from the pineal glandregulates a variety of physiological functions, such as sleep, circadian rhythms, and neuroendocrine actions. Melatonin has also very strong anti-oxidant effects. The effects of melatonin on the pancreatic beta cell senescence induced by glucolipotoxicity have not been studied. INS-1 cells were exposed to 33mM glucose with palmitate 20...

Background: PD-1/PD-L1 blockade is one of the promising drugs in the treatment of advanced non-small cell lung cancer (NSCLC). and predicting drug effect is important due to unique pattern of response. Immune-related adverse event (IRAE) might be associated with favorable clinical outcome. Thyroiditis is the most common IRAE which can be easily detected with the measurement of thyroid hormone levels. However, the relationship between thyroid dysfunction during the use of PD-1/...

Background: Delayed thyroid-stimulating hormone (TSH) recovery during treatment of Graves’ disease is caused by long-term excessive thyroid hormone, which results in down-regulation of pituitary thyrotropic cells. However, it is unknown whether delayed TSH recovery exists after levothyroxine (LT4) dose adjustment in patients with differentiated thyroid cancer (DTC) who are taking a suppressive dose of LT4.Methods: We retrospectively reviewed 97 DTC ...

Background: Increased incidence of small differentiated thyroid cancer (DTC) has emphasized the need for risk stratification and individualized disease management for these low risk DTCs. The aim was to validate a new dynamic risk stratification (DRS) system for prediction of structural recurrent/persistent disease in patients with DTC treated without radioactive iodine (RAI) remnant ablation therapy.Methods: This historical cohort study included 357 pat...