Endocrine Abstracts

Background: Despite relevant evidence that the absorption and/or action of L-thyroxine is compromised by various factors including the diet, until 2014 the British National Formula (BNF) recommended that L-thyroxine be taken ‘preferably before breakfast’ only, with no further clarifications. To follow is one of the cases where untimely food intake in hypothyroid patients manifested with severe hypothyroidism due to L-thyro...

High protein diets suppress appetite, but are difficult to adhere to. Understanding how the gut senses protein may identify mechanisms to drive satiety. Amino acid products of protein digestion are thought to be sensed by G protein coupled receptors in the gut, including the calcium sensing receptor (CaSR). Calcium ions are the major ligand of the CaSR, but aromatic amino acids, particularly L-phenylalanine (L-Phe), allosterically modulate CaSR activity....

Introduction: Neutrophil/lymphocyte (N/L) ratio is considered as a sign of systemic inflammation in recent years. In our study, we aimed to investigate N/L ratio in hyperthyroid patients and healthy control group.Material & methods: A total of 121 hyperthyroid patients (71 patients with Graves’ disease and 50 patients with other causes of hyperthyroidism) and 40 healthy volunteers were enrolled. Complete blood count was obtained from both group ...

Objective: To demonstrate the effectiveness and compliance to L-thyroxine in the treatment of hypothyroidism in a weekly dose of seven times of normal dose as an alternative to daily dosing in young and middle aged females.Methods: Randomized trial on 40 female patients aged between 25 to 55 years with long standing hypothyroidism of 5 years or more, currently on daily dose of L-thyroxine, were assigned weekly dose of seven ...

Human bladder contraction mainly depends on Ca2+ influx, via L-type voltage-gated Ca2+ channels, and on RhoA/Rho-kinase contractile signalling, a pathway up-regulated in overactive bladder (OAB) syndrome. Elocalcitol (Elo) is a vitamin D receptor agonist inhibiting RhoA/Rho-kinase signalling in rat and human bladder, shown to ameliorate OAB symptoms in a clinical study. Since in normal bladder from Sprague–Dawley (SD) rats Elo treatment delayed the c...

Background: Oxidative stress is implicated in the pathogenesis of primary male infertility. Some studies suggest that administration of the amino acid derivative anti-oxidant, L-carnitine, may improve sperm quality. No previous study has investigated whether the anti-oxidant effects of L-carnitine relate to changes in sperm quality in men with infertility.Aim: Investigate whether L-carnetine significantly improves sperm function, and whether baseline lev...

Background: It has been thought that L-carnitine is effective in improving insulin-mediated glucose disposal either in healthy subjects or in type 2 diabetic patients,and carnitine plays an important role in diabetes mellitus omplications (cardiovascular disease).Objective: We designed this study to investigate the effects of oral L-carnitin administration on fasting plasma glucose (FPG) and glycosylated hemoglob (HbA1c), in patients with diabetes mellit...

An 18-year old male presented with galactorrhoaea and obesity. PRL measured 16,630 mU/l, FSH 6.0 U/l, LH 5.0 U/l, testosterone 8.6 nmol/l, SHBG 15.0 nmol/l, IGF-1 22.0 nmol/l and TSH 1.39 mU/l. Several 24-hour urinary free cortisol estimations excluded hypercortisolism. Short synacthen test confirmed an intact HPA axis. Visual fields were full. Pituitary-MRI revealed a large adenoma extending into the right cavernous sinus without suprasellar extension. PRL started declining u...

Alzheimer’s disease (AD) development has a direct relationship with Brain-insulin resistance. Central in the pathology of AD are beta-amyloid and tau proteins associated with cognitive decline in the hippocampus. Allium sativum L. has been shown to have a neuroprotective effect. Thirty-two male Wistar rats (80-150 g) were assigned into A-D (n=8 each), and housed in standard plastic cages at 23± 1°C. Group A received saline, groups B and C were ad...

Background: Subclinical hypothyroidism is common in pregnancy affecting about 5% of all pregnant women, and is associated with adverse pregnancy outcomes. There is a general consensus that subclinical hypothyroidism detected during pregnancy should be treated with L-thyroxine (Stagnaro-green et al. 2011, DeGroot et al. 2012). However, it is unclear whether the treatment should be limited only during the pregnancy or continued long-term. Therefo...