Endocrine Abstracts

The calcium receptor (CASR) serves as one of the main regulators of the calcium homeostasis. CASR is expressed in among other tissues parathyroid chief cells and kidney tubule cells. It has been hypothesized that CASR gene variations are responsible for low circulating calcium levels together with hypercalciuria and thereby increased risk of kidney stones. The CASR gene polymorphism A986S has been shown associated to elevated serum calcium levels in vivo<...

Hypothesis: We hypothesised that damage to the hypothalamus by local tumour, surgical treatment, or irradiation might involve the suprachiasmatic nucleus and thereby melatonin secretion, leading to disturbed circadian function and clinical manifestations such as daytime sleepiness and fatigue in craniopharyngeoma patients.Objective: We aimed to assess the influence of craniopharyngiomas and their treatment on melatonin secretion, sleep pattern, sleep qua...

Introduction: Fractionated stereotactic radiotherapy (FSRT) is used in the treatment of surgically inaccessible meningiomas, primarily in the base of the skull. Development of hypopituitarism following FSRT is inexhaustively investigated. We aimed to elucidate the cause of hypopituitarism in patients treated with FSRT for benign meningiomas of the anterior skull base.Methods: All patients undergoing FSRT for benign meningioma of the skull base between Ju...

Introduction: Recently, it has been suggested that hypopituitarism developed after the brain injury has implications in the final recovery of the patients. We hypothesize that hypopituitarism developed in the course of traumatic brain injury (TBI) or non-TBI is related to worse functional outcome. The aim was to assess the association between hypopituitarism in the early recovery phase and long-term functional outcome.Materials and methods: We included 1...

Objective: The cardiovascular effects of testosterone treatment are debated. Osteoprotegerin (OPG) is an independent marker of cardiovascular risk. We investigated the effect of testosterone therapy on OPG levels in ageing men with low normal bioavailable testosterone levels.Design: A randomized, double-blinded, placebo-controlled study of six months testosterone therapy (gel) in 38 men aged 60–78 years with bioavailable testosterone <7.3 nmol/l...

Background: Hypopituitary patients with untreated growth hormone deficiency (GHD) have increased fat mass, dyslipidaemia and insulin resistance. Inappropriately low thyroxine doses in patients with central hypothyroidism (CH) may also promote such clinical features.Objective: To examine metabolic outcome of thyroxine replacement in hypopituitary patients before and after GH replacement.Method: One thousand and six hundred and two p...

Objective: To estimate the occurrence of hypopituitarism 12 months following traumatic brain injury (TBI), describe the time course, evaluate the predictive value of early hormonal changes and trauma related parameters, as well as out-come.Methods Forty-six patients with TBI (mild (GCS:13–15) n=22; moderate (GCS:9–13) n=9; severe (GCS<9) n=15) were included. Patients were tested early post-injury (baseline hormone level...

Oral but not transdermal ORT reduces serum IGF-1 levels in postmenopausal women. The effect of ORT type on GH dose and sensitivity is unclear. We present a retrospective analysis of GH-deficient women on ORT in the KIMS database.AIM: To determine the type of oestrogen prescribed and its effect on GH dose.METHOD: Patients were divided into groups taking oral oestradiol valerate, conjugated oestrogen, ethinyloestradiol and transderma...

Patients with growth hormone deficiency (GHD) have increased risk of bone fractures. Despite a well-known decrease in bone mineral density (BMD) and content (BMC) in these patients, these changes in bone mineralization cannot explain the increase in fracture rate alone. The purpose of this study was to evaluate collagen morphology in cortical bone from GHD rats in order to provide a further explanation for the increased fracture rate seen in GHD patients.<p class="abstext...

Introduction: Maintenance immunosuppressive regimens after renal transplantation (RTx) most often include prednisolone which may induce secondary adrenal insufficiency. Adrenal insufficiency is a potentially life-threatening side effect to glucocorticoid treatment due to the risk of acute adrenal crisis. We aimed to investigate the prevalence of prednisolone-induced adrenal insufficiency in RTx patients receiving long-term low-dose prednisolone treatment.<p class="abstext"...