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Acromegaly, IGF1 bioactivity, and S-Klotho

The value of measuring IGF1 bioactivity in active acromegaly is unknown. Soluble Klotho (S-Klotho) level is elevated in active acromegaly and it has been suggested that S-Klotho can inhibit activation of the IGF1 receptor (IGF1R). A cross-sectional study was carried out in 15 patients with active acromegaly, finding that IGF1 bioactivity was within the reference range in a considerable number of subjects with active acromegaly and that elevated S-Klotho levels may have reduced IGF1 bioactivity. Moreover, IGF1 bioactivity was more strongly related to physical measures of QoL than total IGF1, suggesting that IGF1 bioactivity may better reflect physical limitations perceived in active acromegaly. Read the full article at Varewijck et al. (2014) Endocrine Connections 3 85–92 http://dx.doi.org/10.1530/EC-14-0028
Source: Society for Endocrinology - Category: Endocrinology Source Type: news

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AbstractA heterogeneous group of epithelial cystic tumors developed at the infundibulum and the third ventricle disconcerted pathologists at the dawn of the twentieth century. Very little was known at that time about the physiological role played by the pituitary gland, and there was almost complete ignorance regarding the function of the hypothalamus. Acromegaly, or enlargement of acral body parts, described in 1886 by Pierre Marie, was the only disease linked to primary hypertrophies of the pituitary gland, known as “pituitary strumas”. A growing number of young patients manifesting an unexplained combination...
Source: Pituitary - Category: Endocrinology Source Type: research
KIP SULLIVAN Lawton Burns and Mark Pauly, economists at the Wharton School, just published an article that should be required reading for all policy makers and health services researchers. The article,  entitled “Transformation of the health care industry: Curb your enthusiasm,” appears in the latest edition of the Milbank Quarterly. Burns and Pauly undertook an enormous task and executed it well. They first sought to explain the assumptions underlying Managed Care (MC) 2.0 – the proposals promoted by the managed care movement in the wake of the HMO backlash of the late 1990s. Then they evaluat...
Source: The Health Care Blog - Category: Consumer Health News Authors: Tags: Uncategorized Source Type: blogs
Publication date: Available online 17 March 2018 Source:Best Practice & Research Clinical Endocrinology & Metabolism Author(s): Giampaolo Trivellin, Laura C. Hernández-Ramírez, Jeremy Swan, Constantine A. Stratakis X-linked acrogigantism (X-LAG) is a recently described form of familial or sporadic pituitary gigantism characterized by very early onset GH and IGF-1 excess, accelerated growth velocity, gigantism and/or acromegaloid features. Germline or somatic microduplications of the Xq26.3 chromosomal region, invariably involving the GPR101 gene, constitute the genetic defect leading to X-LAG. G...
Source: Best Practice and Research Clinical Endocrinology and Metabolism - Category: Endocrinology Source Type: research
ConclusionThe technique presented herein effectively improved the quality of life of patients with acromegaly with different levels of disease activity, type, and treatment time.
Source: Pituitary - Category: Endocrinology Source Type: research
In this study, we aimed to evaluate the presence of glucose metabolism abnormalities and their impact on IGF-1 levels in patients with acromegaly. Ninety-three patients with acromegaly (n=93; 52 males/41 females) were included in this study. Patients were separated into three groups such as; normal glucose tolerance (n=23, 25%), prediabetes (n=38, 41%), and diabetes mellitus (n=32, 34%). Insulin resistance was calculated with homeostasis model assessment (HOMA). HOMA-IR> 2.5 or ≤2.5 were defined as insulin resistant or noninsulin resistant groups, respectively. Groups were compared in terms of factors that may...
Source: Hormone and Metabolic Research - Category: Endocrinology Authors: Tags: Endocrine Care Source Type: research
ConclusionsOur data demonstrate a low prevalence of acromegaly in patients with OSAS. Until data from population-based studies is available we suggest restricting screening for acromegaly in OSAS to those patients who have additional clinical features of acromegaly.
Source: Endocrine - Category: Endocrinology Source Type: research
AbstractBackgroundTranssphenoidal surgery (TSS) is the cornerstone of acromegaly treatment, however there are no robust predictors of surgical outcome and remission can only be defined three months after surgery.PurposeTo analyze if biochemical, demographical, radiological, and immunohistochemical characteristics are predictors of surgical remission and investigate if immediate postoperative GH and IGF-I levels can help defining remission earlier.MethodsConsecutive acromegaly patients submitted to TSS between 2013-2016 were evaluated. Remission criteria was defined as normal IGF-I and GH
Source: Endocrine - Category: Endocrinology Source Type: research
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Source: Clinical Endocrinology - Category: Endocrinology Authors: Source Type: research
Source: Notes from Dr. RW - Category: Internal Medicine Tags: cardiovascular endocrinology Source Type: blogs
Funding Opportunity PA-18-741 from the NIH Guide for Grants and Contracts. This Funding Opportunity Announcement (FOA) encourages R21 applications that propose to conduct secondary analyses of existing data sets relevant to diabetes and selected endocrine and metabolic diseases including thyroid, parathyroid and Cushings diseases and acromegaly; and genetic metabolic disease including cystic fibrosis, lysosomal storage diseases, and disorders of the urea cycle, amino acid metabolism and metal transport where the focus is on peripheral metabolism or organ function; obesity, liver diseases, alimentary GI tract diseases and ...
Source: NIH Funding Opportunities (Notices, PA, RFA) - Category: Research Source Type: funding
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