Endocrine Abstracts

Context: Loss-of-function of immunoglobulin superfamily 1 (IGSF1) causes an X-linked syndrome of central hypothyroidism, macroorchidism, and variable prolactin deficiency, GH deficiency in childhood, delayed pubertal testosterone rise, and/or obesity. The clinical features advert towards a pivotal role for IGSF1 in the pituitary gland, but detailed knowledge on pituitary hormone secretion in this syndrome is lacking.Objective: To study detailed ...

Background: Many patients with acromegaly report limitations of long-acting somatostatin receptor ligand (SRL) injections, including ongoing disease symptoms near cycle-end and injection-site pain. Oral octreotide capsules (OOC) may provide an alternative to monthly injections. The phase 3 CHIASMA OPTIMAL study assessed efficacy and safety of OOC in patients with acromegaly controlled on injectable SRLs.Methods: A multinational, randomized, placebo-contr...

Background: Injectable somatostatin receptor ligands (SRLs) are currently the most widely used therapy for acromegaly. Oral octreotide capsules (OOC) are a potential therapy for acromegaly; the safety and efficacy were evaluated in the CHIASMA OPTIMAL pivotal study (Samson et al. ENDO 2020). As reported, mean IGF-I levels of the OOC group were maintained within normal range at end of treatment in all patients. However, some patients may not respond to OOC treatment (2...

Background: Clinically non-functioning pituitary macroadenomas (NFMA) have been reported to express various somatostatin receptor (SSTR) subtypes, but results are inconsistent across different studies. This may be related to limited sensitivity and specificity of techniques used to date, i.e. immunohistochemistry in surgical specimens and 111In-DTPA-octreotide scintigraphy (Octreoscan) in vivo. The aim of this study was to assess SSTR expression in NFMA <em...

Objective: Pituitary diseases cause a wide range of local and systemic symptoms and severely affect patients’ health-related quality of life (HRQoL), which can be monitored using both disease-specific and generic questionnaires. The most frequently used generic HRQoL questionnaire is the Short Form-36 (SF-36), generating a mental (MCS) and physical component score (PCS). The shorter 12-item version (SF-12) can improve efficiency of patient monitoring and outcome measurem...

Background: Transsphenoidal surgery is standard care in the treatment of hormone-secreting pituitary adenomas. Current clinician-reported surgical outcome measures are one-dimensional, typically focussing primarily on complete or partial resection and secondarily on complication rates. However, outcomes are best reflected by the delicate balance of efficacy and complications at patient level. This study proposes a novel way to classify outcome, integrating efficacy and safety ...

Background: Hypopituitarism after traumatic brain injury (TBI) is considered to be a prevalent condition, and may affect quality of life (QoL) and cognitive function. However, the prevalence of hypopituitarism differs considerably among reported studies due to differences in definitions, endocrine assessments of hypopituitarism, and confounding factors, like timing of evaluation and the severity of the trauma.Aim: To evaluate the prevalence of hypopituit...

Objective: To identify factors influencing the development of osteoarthritis during long-term control of acromegaly, focusing on disease specific parameters, growth hormone (GH) and insulin-like growth factor I (IGF-I) concentrations and duration of disease, adjusted for the well-known determinants of primary osteoarthritis.Design: Follow-up study.Methods: We studied 67 patients, with adequate biochemical control of acromegaly for ...

Background: Cushing’s disease is caused by an adrenocorticotropic hormone (ACTH)-secreting pituitary adenoma, resulting in glucocorticoid excess. First-choice treatment is transsphenoidal pituitary surgery, using either a microscopic or endoscopic technique. Convincing evidence supporting the choice for one of both techniques, either based on treatment results or complication rate, is lacking.Objective: We aimed to compare endoscopic and microscopic...

BackgroundEndogenous Cushing’s syndrome (CS) is detrimental to bone. The skeletal complications are characterized by decreased bone formation and increased bone resorption, resulting in decreased bone mineral density (BMD) and an increased risk of fractures at time of diagnosis. After remission of the disease, BMD improves towards normal values but fracture rate remains elevated. Therefore, components of bone quality other than BMD, such as bone mat...