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Endocrine Connections

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https://www.readbyqxmd.com/read/28298337/radiological-surveillance-in-multiple-endocrine-neoplasia-type-1-a-double-edged-sword
#1
Ruth Therese Casey, Deborah Saunders, Ben George Challis, Deborah Pitfield, Heok Cheow, Ashley Shaw, Helen Lisa Simpson
CONTEXT: Multiple endocrine neoplasia type 1 (MEN1) is a hereditary condition characterised by the predisposition to hyperplasia/tumours of endocrine glands. MEN1 related disease, moreover malignancy related to MEN1, is increasingly responsible for death in up to two-thirds of patients. Whilst patients undergo radiological and biochemical surveillance, current recommendations for radiological monitoring are based on non-prospective data with little consensus or evidence demonstrating improved outcome from this approach...
March 15, 2017: Endocrine Connections
https://www.readbyqxmd.com/read/28258126/effects-of-meal-and-incretins-in-the-regulation-of-splanchnic-blood-flow
#2
Jukka Koffert, Henri Honka, Jarmo Teuho, Saila Kauhanen, Saija Hurme, Riitta Parkkola, Vesa Oikonen, Andrea Mari, Andreas Lindqvist, Nils Wierup, Leif Groop, Pirjo Nuutila
OBJECTIVE: Meal ingestion is followed by a redistribution of blood flow (BF) within the splanchnic region contributing to nutrient absorption, insulin secretion and glucose disposal, but factors regulating this phenomenon in humans are poorly known. The aim of the present study was to evaluate the organ-specific changes in BF during a mixed-meal and incretin infusions. DESIGN: Non-randomized intervention study of 10 healthy adults to study splanchnic BF regulation...
March 3, 2017: Endocrine Connections
https://www.readbyqxmd.com/read/28249936/subclinical-hypothyroidism-to-treat-or-not-to-treat-a-systematic-review-with-meta-analysis-on-lipid-profile
#3
Isabel Abreu, Eva Lau, Bernardo Sousa-Pinto, Davide Carvalho
Previous studies suggested that subclinical hypothyroidism has a detrimental effect on cardiovascular risk factors, and that its effective treatment may have a beneficial impact on overall health. The main purpose of this review and meta-analysis was to assess whether subclinical hypothyroidism treatment is of clinical relevance, based on cardiovascular risk parameters correction. A systemic research of the literature using MEDLINE tool was performed to identify the relevant studies. Only placebo-controlled randomized control trials were included...
March 1, 2017: Endocrine Connections
https://www.readbyqxmd.com/read/28232367/association-of-vdr-polymorphisms-and-type-1-diabetes-susceptibility-in-children-a-meta-analysis
#4
Ozlem Sahin, Damla Gökşen, Aysel Ozpinar, Muhittin Serdar, Hüseyin Onay
OBJECTIVE: There are studies evluating FokI, BsmI, ApaI and TaqI polymorphisms of the vitamin D receptor gene and susceptibility to DM1 (type 1 diabetes mellitus) with controversial results. This present study aims to investigate the association between FokI, ApaI, TaqI and BsmI polymorphisms of vitamin D receptor (VDR) gene and DM1 in children. METHODS: A literature search was performed using Medline, EMBASE, Cochrane and Pubmed. Studies were included in the study if at least one of FokI, ApaI, TaqI and BsmI polymorphisms was determined and outcome was DM1 at pediatric age...
February 23, 2017: Endocrine Connections
https://www.readbyqxmd.com/read/28223310/overexpression-of-vitamin-d-receptor-mrna-correlates-with-poor-prognosis-in-ptc
#5
June Young Choi, Jin Wook Yi, Joon-Hyop Lee, Ra-Yeong Song, Hyeong Won Yu, Hyungju Kwon, Young Jun Chai, Su-Jin Kim, Kyu Eun Lee
The purpose of this study was to assess the relationship between vitamin D receptor (VDR) mRNA expression and prognosis in papillary thyroid cancer. RNA sequencing and somatic mutation data from TCGA (the Cancer Genome Atlas) were analyzed. VDR mRNA expression was compared to clinicopathologic variables by linear regression. Tree-based classification was applied to find VDR cutoff and patients were split into low and high VDR group. Logistic regression, Kaplan-Meier analysis, differentially expressed gene (DEG) test, and pathway analysis were performed to assess differences between groups...
February 21, 2017: Endocrine Connections
https://www.readbyqxmd.com/read/28219937/a-meta-analysis-of-prognostic-roles-of-molecular-markers-in-papillary-thyroid-carcinoma
#6
Huy Gia Vuong, Uyen N P Duong, Ahmed M A Altibi, Hanh T T Ngo, Thong Quang Pham, Hung Minh Tran, Greta Gandolfi, Lewis Hassell
The prognostic role of molecular markers in papillary thyroid carcinoma (PTC) is a matter of ongoing debate. The aim of our study is to investigate the impact of RAS, BRAF, TERT promoter mutations and RET/PTC rearrangements on prognosis of PTC patients. We performed a search in four electronic databases: PubMed, Scopus, Web of Science and Virtual Health Library (VHL). Data of hazard ratio (HR) and its 95% confidence interval (CI) for Disease-specific survival (DSS) and Disease-free survival (DFS) were directly obtained from original papers or indirectly estimated from Kaplan Meier curve (KMC)...
February 20, 2017: Endocrine Connections
https://www.readbyqxmd.com/read/28196799/a-phase-2-trial-of-long-acting-transcon-growth-hormone-in-adult-gh-deficiency
#7
Charlotte Höybye, Andreas F H Pfeiffer, Diego Ferone, Jens S Christiansen, David Gilfoyle, Eva Dam Christoffersen, Eva Mortensen, Jonathan A Leff, Michael Beckert
TransCon growth hormone is a sustained release human growth hormone prodrug in development in which unmodified growth hormone is transiently linked to a carrier molecule. It is intended as an alternative to daily growth hormone in the treatment of growth hormone deficiency. This was a multi-center, randomized, open-label, active-controlled trial designed to compare the safety (including tolerability and immunogenicity), pharmacokinetics, and pharmacodynamics of three doses of weekly TransCon GH to daily growth hormone (Omnitrope)...
February 14, 2017: Endocrine Connections
https://www.readbyqxmd.com/read/28179377/hepcidin-links-gluco-toxicity-to-pancreatic-beta-cell-dysfunction-through-inhibiting-pdx-1-expression
#8
Xuhua Mao, Hucheng Chen, Junmin Tang, Liangliang Wang, Tingting Shu
OBJECTIVE: Gluco-toxicity is a term used to convey the detrimental effect of hyperglycemia on β-cell function through impaired insulin synthesis. Although it is known that the expression and activity of several key insulin transcription regulators is inhibited, other molecular mechanisms that mediate gluco-toxicity are poorly defined. Our objective was to explore the role of hepcidin in β-cell gluco-toxicity. DESIGN: We first confirmed that high glucose levels inhibited hepcidin expression in the mouse insulinoma cell line, MIN6...
February 8, 2017: Endocrine Connections
https://www.readbyqxmd.com/read/28179376/the-variation-in-free-25-hydroxy-vitamin-d-and-vitamin-d-binding-protein-with-season-and-vitamin-d-status
#9
Göran Oleröd, Lillemor Mattsson Hultén, Ola Hammarsten, Eva Klingberg
PURPOSE: Serum 25-hydroxy vitamin D [25(OH)D] varies greatly with season at northern latitudes. The purpose of this study was to determine if the seasonal variations in serum total 25(OH)D is followed by a concomitant variation in free 25(OH)D or if the variation is damped by alterations in the binding capacity of DBP. METHODS: Serum was collected from 540 healthy blood donors (60% men; mean age 41±13 years) during 12 months and analyzed for total 25(OH)D, directly measured free 25(OH)D, vitamin D binding protein (DBP) and albumin...
February 8, 2017: Endocrine Connections
https://www.readbyqxmd.com/read/28126832/effect-of-%C3%AE-agonist-on-the-dexamethasone-induced-expression-of-aromatase-by-the-human-monocyte-cells
#10
Masatada Watanabe, Shuji Ohno, Hiroshi Wachi
Emerging evidence suggests that sex steroids are important for human skin health. In particular, estrogen improves skin thickness, elasticity, and moisture of older women. The major source of circulating estrogen is the ovary; however, local estrogen synthesis and secretion have important roles in, for example, bone metabolism and breast cancer development. We hypothesized that infiltrated peripheral monocytes are one of the sources of estrogen in skin tissues. We also hypothesized that, during atopic dermatitis under stress, a decline in the hypothalamus-pituitary-adrenal axis (HPA) and facilitation of the (hypothalamus)-sympathetic-adrenomedullary system (SAM) attenuates estrogen secretion from monocytes...
January 26, 2017: Endocrine Connections
https://www.readbyqxmd.com/read/28119322/the-role-of-glucocorticoids-and-corticotropin-releasing-hormone-regulation-on-anxiety-symptoms-and-response-to-treatment
#11
Greta Bielaczyc Raglan, Louis A Schmidt, Jay Schulkin
The stress response has been linked to the expression of anxiety and depression, but the mechanisms for these connections are under continued consideration. The activation and expression of glucocorticoids and CRH are variable, and may hold important clues to individual experiences of mood disorders. This paper explores the interactions of glucocorticoids and CRH in the presentation of anxiety and depressive disorders in an effort to better describe their differing roles in each of these clinical presentations...
January 24, 2017: Endocrine Connections
https://www.readbyqxmd.com/read/28104724/predicting-survival-of-patients-with-small-bowel-neuroendocrine-tumours-comparison-of-3-systems
#12
Ashley Kieran Clift, Omar Faiz, Rob Goldin, John Martin, Harpreet Wasan, Marc-Olaf Liedke, Erik Schloericke, Anna Malczewska, Guido Rindi, Mark Kidd, Irvin Modlin, Andrea Frilling
Neuroendocrine tumours (NET) are clinically challenging due to their unpredictable behaviour. Nomograms, grading and staging systems are predictive tools with multiple roles in clinical practice, including patient prognostication. The NET nomogram allocates scores for various clinicopathological parameters, calculating percentage estimates for 5- and 10-year disease-specific survival of patients with small bowel (SB) NET. We evaluated the clinical utility of three prognostic systems in 70 SB NET patients: the NET nomogram, the World Health Organisation (WHO)/European Neuroendocrine Tumour Society (ENETS) grading system and the American Joint Commission on Cancer (AJCC)/Union Internationale Contre le Cancer (UICC) TNM staging method...
January 19, 2017: Endocrine Connections
https://www.readbyqxmd.com/read/28087609/role-of-attitudes-and-intentions-in-predicting-adherence-to-oral-diabetes-medications
#13
Emmanuel K Fai, Cheryl Anderson, Victor Ferreros
The purpose of this quantitative study was to investigate the extent to which patient attitudes and intentions predict adherence to the use of oral antihyperglycemic regimens in African Americans. This cross-sectional study of 115 participants used correlation analysis to establish relationships between patient attitudes, intentions, and adherence. Data analyses showed significant correlations between the variables. Multiple regression analysis was used to establish predictions between the variables. A prediction model containing attitudes, subjective norms, and perceived behavioral control (PBC) explained 37% of the variance to behavioral intention...
January 13, 2017: Endocrine Connections
https://www.readbyqxmd.com/read/28069896/anti-tumor-effects-of-shikonin-derivatives-on-human-medullary-thyroid-carcinoma-cells
#14
Carina Hasenoehrl, Gert Schwach, Nassim Ghaffari-Tabrizi-Wizsy, Robert Fuchs, Nadine Kretschmer, Rudolf Bauer, Roswitha Pfragner
New treatment options are needed for medullary thyroid carcinoma (MTC), a highly metastasizing neuroendocrine tumor that is resistant to standard radio- and chemotherapy. We show that the following shikonin derivatives inhibit cell proliferation and cell viability of the MTC cell line TT: acetylshikonin, β,β-dimethylacrylshikonin, shikonin and a petroleum ether extract of the roots of Onosma paniculata containing several shikonin derivatives. The unsubstituted shikonin derivative was found to be the most effective compound with an IC50 of 1...
January 9, 2017: Endocrine Connections
https://www.readbyqxmd.com/read/28174253/vitamin-d-induces-myogenic-differentiation-in-skeletal-muscle-derived-stem-cells
#15
Melissa Braga, Zena Simmons, Keith C Norris, Monica G Ferrini, Jorge N Artaza
Skeletal muscle wasting is a serious disorder associated with health conditions such as aging, chronic kidney disease and AIDS. Vitamin D is most widely recognized for its regulation of calcium and phosphate homeostasis in relation to bone development and maintenance. Recently, vitamin D supplementation has been shown to improve muscle performance and reduce the risk of falls in vitamin D deficient older adults. However, little is known of the underlying molecular mechanism(s) or the role it plays in myogenic differentiation...
April 2017: Endocrine Connections
https://www.readbyqxmd.com/read/28270559/a-single-night-light-exposure-acutely-alters-hormonal-and-metabolic-responses-in-healthy-participants
#16
Mohammed S Albreiki, Benita Middleton, Shelagh M Hampton
Many animal studies have reported an association between melatonin suppression and the disturbance of metabolic responses; yet, few human studies have investigated bright light effects on metabolic and hormonal responses at night. This study investigated the impact of light on plasma hormones and metabolites prior to, and after, an evening meal in healthy participants. Seventeen healthy participants, 8 females (22.2 ± 2.59 years, mean ± s.d.) and 9 males (22.8 ± 3.5 years) were randomised to a two-way cross-over design protocol; dim light (DL) (<5 lux) and bright light (BL) (>500 lux) sessions, separated by at least seven days...
February 2017: Endocrine Connections
https://www.readbyqxmd.com/read/28119323/liraglutide-in-polycystic-ovary-syndrome-a-randomized-trial-investigating-effects-on-thrombogenic-potential
#17
Malin Nylander, Signe Frøssing, Caroline Kistorp, Jens Faber, Sven O Skouby
Polycystic ovary syndrome (PCOS) is associated with increased risk of venous thromboembolism (VTE) and cardiovascular disease (CVD) in later life. We aimed to study the effect of liraglutide intervention on markers of VTE and CVD risk, in PCOS. In a double-blind, placebo-controlled, randomized trial, 72 overweight and/or insulin-resistant women with PCOS were randomized, in a 2:1 ratio, to liraglutide or placebo 1.8 mg/day. Endpoints included between-group difference in change (baseline to follow-up) in plasminogen activator inhibitor-1 levels and in thrombin generation test parameters: endogenous thrombin potential, peak thrombin concentration, lag time and time to peak...
February 2017: Endocrine Connections
https://www.readbyqxmd.com/read/28069899/lps-infusion-suppresses-serum-fgf21-levels-in-healthy-adult-volunteers
#18
Esben S Lauritzen, Nikolaj Rittig, Ermina Bach, Niels Møller, Mette Bjerre
CONTEXT: During the inflammatory acute phase response, plasma glucose and serum triglycerides are increased in humans. Fibroblast growth factor (FGF) 21 has plasma glucose and lipid-reducing actions, but its role in the acute inflammatory response in human is unknown. OBJECTIVE: To investigate circulating levels of FGF21 after lipopolysaccharide (LPS) infusion. DESIGN: Two randomized, single-blinded, placebo-controlled crossover trials were used...
January 2017: Endocrine Connections
https://www.readbyqxmd.com/read/28069898/is-visual-radiological-evaluation-of-liver-tumour-burden-in-patients-with-neuroendocrine-tumours-reproducible
#19
Magaly Zappa, Olivia Hentic, Marie-Pierre Vullierme, Matthieu Lagadec, Maxime Ronot, Philippe Ruszniewski, Valérie Vilgrain
BACKGROUND: Visual semi-quantitative assessment of liver tumour burden for neuroendocrine tumour liver metastases is often used in patient management and outcome. However, published data on the reproducibility of these evaluations are lacking. OBJECTIVE: The aim of this study was to evaluate the interobserver and intraobserver agreement of a visual semi-quantitative assessment of liver tumour burden using CT scan. METHODS: Fifty consecutive patients (24 men and 26 women, mean aged 54 years) were retrospectively reviewed by four readers (two senior radiologists, one junior radiologist and one gastroenterologist) who assessed the liver tumour burden based on a visual semi-quantitative method with four classes (0-10, 11-25, 26-50 and ≥50%)...
January 2017: Endocrine Connections
https://www.readbyqxmd.com/read/28069897/impact-of-estrogen-receptor-%C3%AE-gene-and-oxytocin-receptor-gene-polymorphisms-on-female-sexuality
#20
Anastasia K Armeni, Konstantinos Assimakopoulos, Dimitra Marioli, Vassiliki Koika, Euthychia Michaelidou, Niki Mourtzi, Gregoris Iconomou, Neoklis A Georgopoulos
Over the past decades, research attention has increasingly been paid to the neurobiological component of sexual behavior. The aim of the present study was to investigate the correlation of estrogen receptor α (ERA) gene polymorphism (rs2234693-PvuII) (T→C substitution) and oxytocin receptor gene polymorphism (rs53576) (G→A substitution) with sexuality parameters of young, healthy women. One hundred thirty-three Greek heterosexual women, students in higher education institutions, 20-25 years of age, sexually active, with normal menstrual cycles (28-35 days), were recruited in the study...
January 2017: Endocrine Connections
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