Endocrine Abstracts

This study is designed to test the hypothesis that the gonadotrophinresponses to GnRH are heterogeneous and that, in pituitary/parapituitary lesion patients, the test is of no value as a diagnostic discriminator.We carried out a 5-year retrospective review of GnRH results from a cohort of 104 male (46) and female (premenopausal 49, post-menopausal 9) patients with pituitary/parapituitary lesions. Serum LH and FSH levels were measur...

Treatment of acromegaly aims primarily to reverse the increased mortality and morbidity associated with active disease to that of the non-acromegalic population. Recent evidence indicates that the best biochemical criteria for successful treatment should be a mean GH<2micrograms per litre (approximately 4milliunits per litre). Although a 'test dose' of octreotide (OTD) is recommended prior to use of depot somatostatin analogues (SSAs), there remains no consensus regarding t...

Introduction and aims: Following treatment for acromegaly, both growth hormone (GH) and insulin-like growth factor-I (IGF-I) levels are predictive of mortality. These data are derived from studies of either a single GH or the mean circadian GH, with a threshold of 2 mcg/l. However, consensus target criteria (Giustina et al. 2000) require: a nadir GH of <1 mcg/l on OGTT and IGF-I within the age/sex-adjusted normal range. We aimed to determine the degree to which norm...

Background: Prolactin levels are affected by stress, and in patients with moderate hyperprolactinaemia, a repeat test and/or a resting prolactin has been recommended, but there are very few data addressing the utility of these additional measurements.Aim: To study the value of: A) Repeat measurement and B) Resting measurement of serum prolactin in mild to moderate prolactin excess (510–7500 IU/L).Methods and subjects: Case not...

Intro: A subset of pancreatic and gastric neuroendocrine tumours (NET) are associated with hypercalcaemia attributed to tumour secretion of parathyroid hormone related peptide (PTHrP). Hypercalcaemia may be severe and refractory to conventional treatment....