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Growth Hormone and aging

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https://www.readbyqxmd.com/read/27932410/anthropometric-factors-have-significant-influence-on-the-outcome-of-the-ghrh-arginine-test-establishment-of-normative-data-for-an-automated-immunoassay-specifically-measuring-22kd-human-growth-hormone
#1
Timo Deutschbein, Martin Bidlingmaier, Jochen Schopohl, Christian J Strasburger, Stephan Petersenn
CONTEXT: Adult growth hormone (GH) deficiency (GHD) is diagnosed by provocative testing of GH secretion. OBJECTIVE: To improve diagnostic accuracy of GH releasing hormone (GHRH) plus arginine (GARG) testing, we evaluated the influence of age, BMI, and sex, and established normative data for an automatic immunoassay specifically measuring 22kD human GH. DESIGN/SETTING: Prospective multicenter study. PARTICIPANTS: Eighty-seven patients with hypothalamic-pituitary disease and 200 healthy controls...
December 8, 2016: European Journal of Endocrinology
https://www.readbyqxmd.com/read/27926952/growth-hormone-treatment-increases-plasma-irisin-concentration-in-patients-with-turner-syndrome
#2
B Wikiera, K Zawadzka, Ł Łaczmański, N Słoka, M Bolanowski, A Basiak, A Noczyńska, J Daroszewski
Irisin (Ir) deficiency may be a contributing factor in metabolic disease. This study aimed to investigate the effect of supraphysiological doses of recombinant human growth hormone (rhGH) on Ir plasma concentration in relation to metabolic disorders, including obesity and other components of metabolic syndrome. We studied 36 girls with Turner syndrome (mean age 8.2 years) treated with rhGH (0.05 mg/kg/day). Anthropometric data and fasting blood levels [e. g., Ir, insulin, glucose, glycated hemoglobin (HbA1c), IGF-1, IGFBP-3, cholesterol, insulin resistance (HOMA-IR), and β-cell function (HOMA-β)] were analyzed prior to and following rhGH therapy [mean (SD) follow-up of 1...
December 7, 2016: Hormone and Metabolic Research, Hormon- und Stoffwechselforschung, Hormones et Métabolisme
https://www.readbyqxmd.com/read/27923524/the-therapeutic-potential-of-metabolic-hormones-in-the-treatment-of-age-related-cognitive-decline-and-alzheimer-disease
#3
REVIEW
John Grizzanti, Hyoung-Gon Lee, Antoni Camins, Merce Pallas, Gemma Casadesus
Aging leads to a number of physiological alterations, specifically changes in circulating hormone levels, increases in fat deposition, decreases in metabolism, changes in inflammatory responses, and reductions in growth factors. These progressive changes in physiology and metabolism are exacerbated by modern culture and Western diet and give rise to diseases such as obesity, metabolic syndrome, and type 2 (non-insulin-dependent) diabetes (T2D). These age and lifestyle-related metabolic diseases are often accompanied by insulin and leptin resistance, as well as aberrant amylin production and signaling...
November 8, 2016: Nutrition Research
https://www.readbyqxmd.com/read/27922822/serum-protein-mediators-of-dementia-and-aging-proper
#4
Donald R Royall, Safa Al-Rubaye, Ram Bishnoi, Raymond F Palmer
The latent variable "δ" (for "dementia") appears to be uniquely responsible for the dementing aspects of cognitive impairment. Age, depressive symptoms, gender and the apolipoprotein E (APOE) ε4 allele are independently associated with δ. In this analysis, we explore serum proteins as potential mediators of age's specific association with δ in a large, ethnically diverse longitudinal cohort, the Texas Alzheimer's Research and Care Consortium (TARCC). 22 serum proteins were recognized as partial mediators of age's association with δ...
December 3, 2016: Aging
https://www.readbyqxmd.com/read/27918854/randomized-trial-testing-the-effects-of-eating-frequency-on-two-hormonal-biomarkers-of-metabolism-and-energy-balance
#5
Martine M Perrigue, Adam Drewnowski, Ching-Yun Wang, Xiaoling Song, Mario Kratz, Marian L Neuhouser
BACKGROUND: Eating frequency (EF) may influence obesity-related disease risk by attenuating postprandial fluctuations in hormones involved in metabolism, appetite regulation, and inflammation. MATERIALS/METHODS: This randomized crossover intervention trial tested the effects of EF on fasting plasma insulin-like growth factor-I (IGF-1) and leptin. Fifteen subjects (4 males, 11 females) completed two eucaloric intervention phases lasting 21 days each: low EF ("low-EF"; 3 eating occasions/day) and high EF ("high-EF"; 8 eating occasions/day)...
December 5, 2016: Nutrition and Cancer
https://www.readbyqxmd.com/read/27916832/anthropometric-measurements-serum-reproductive-hormonal-levels-and-sexual-development-among-boys-in-the-rural-western-cape-south-africa
#6
Jun Mao, Mohamed Aqiel Dalvie
Data on growth and sexual maturation among boys from the rural Western Cape in South Africa is limited. A cross-sectional study of 269 school boys was conducted testing for serum luteinizing hormone (LH), follicle stimulating hormone (FSH), testosterone, sex hormone binding globulin (SHBG) and estradiol (E2); height, weight and body mass index (BMI); sexual maturity (using Tanner Stages) and a questionnaire (demographic and medical history). The median age at pubertal onset (Tanner Stage 2) and Tanner Stage 5 was 11...
November 29, 2016: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/27915352/baseline-characteristics-and-gender-differences-in-prepubertal-children-treated-with-growth-hormone-in-europe-usa-and-japan-25-years-kigs%C3%A2-experience-1987-2012-and-review
#7
Michael B Ranke, Anders Lindberg, Toshiaki Tanaka, Cecilia Camacho-Hübner, David B Dunger, Mitchell E Geffner
BACKGROUND: Information about disease-specific and gender-associated differences over longer time of short children treated with recombinant human growth hormone is missing. METHODS: We analyzed data at growth hormone (GH) start in prepubertal children diagnosed with idiopathic GH deficiency (IGHD), congenital GHD, acquired GHD, idiopathic short stature (ISS), and born small for gestational age (SGA) enrolled (1987-2012) in the Pfizer International Growth Study (KIGS®) from Europe, USA, and Japan...
December 3, 2016: Hormone Research in Pædiatrics
https://www.readbyqxmd.com/read/27907809/does-exposure-to-phthalates-influence-thyroid-function-and-growth-hormone-homeostasis-the-taiwan-environmental-survey-for-toxicants-test-2013
#8
Han-Bin Huang, Wen-Harn Pan, Jung-Wei Chang, Hung-Che Chiang, Yue Leon Guo, Jouni J K Jaakkola, Po-Chin Huang
BACKGROUND: Previous epidemiologic and toxicological studies provide some inconsistent evidence that exposure to phthalates may affect thyroid function and growth hormone homeostasis. OBJECTIVE: To assess the relations between exposure to phthalates and indicators of thyroid function and growth hormone homeostasis disturbances both among adults and minors. METHODS: We conducted a population-based cross-sectional study of 279 Taiwanese adults (≥18 years old) and 79 minors (<18 years old) in 2013...
November 28, 2016: Environmental Research
https://www.readbyqxmd.com/read/27902988/smell-and-taste-to-improve-nutrition-in-very-preterm-infants-a-randomized-controlled-pilot-trial
#9
Friederike Beker, Gillian Opie, Elizabeth Noble, Yannan Jiang, Frank H Bloomfield
BACKGROUND: The perception of smell and taste, though present early in development, is not routinely considered in the care of preterm infants. Smell and taste are known to increase gut motility, insulin secretion, and the release of appetite, digestive and metabolic hormones. OBJECTIVE: We aimed to investigate the effect of regular smell and taste on the time from birth to full enteral feeds, and the feasibility of the study protocol in very preterm infants. METHODS: In a randomized controlled trial, infants <29 weeks' postmenstrual age (PA) were assigned to receive either the smell and taste of milk before each feed or to have no exposure to the smell and taste of milk (control)...
December 1, 2016: Neonatology
https://www.readbyqxmd.com/read/27901271/hyperostosis-frontalis-interna-in-female-historic-skeletal-populations-age-sex-hormones-and-the-impact-of-industrialization
#10
A G Western, J J Bekvalac
OBJECTIVES: This analysis aims to investigate the impact of industrialization on the prevalence of Hyperostosis Frontalis Interna (HFI), focusing on the roles of age and parity to examine the claim that longevity and changing reproductive patterns have led to increased rates in modern populations. MATERIALS AND METHODS: A total of 138 individuals from two documented London skeletal assemblages of the Industrial period were analyzed employing macroscopic observation, digital radiography and MicroCT scanning to establish the prevalence rates of HFI according to modern clinical standards...
November 30, 2016: American Journal of Physical Anthropology
https://www.readbyqxmd.com/read/27899970/fish-testing-of-her2-immunohistochemistry-1-invasive-breast-cancer-with-unfavorable-characteristics
#11
Stella Petroni, Lucia Caldarola, Rachele Scamarcio, Francesco Giotta, Agnese Latorre, Anita Mangia, Giovanni Simone
Diagnostic assays for human epidermal growth factor receptor 2 (HER2) expression have a high predictive value because patients with HER2-positive tumors could benefit from HER2-targeted therapy. The aim of the present study is to analyze the incidence of HER2 gene amplification in selected tumors with adverse features that scored 1+ by immunohistochemistry (IHC). For that purpose, 331 consecutive invasive breast cancers (IBCs) were tested by IHC for HER2 expression between January and December 2013, 102 of which (31%) scored 1+...
November 2016: Oncology Letters
https://www.readbyqxmd.com/read/27899001/drug-interventions-for-the-treatment-of-obesity-in-children-and-adolescents
#12
REVIEW
Emma Mead, Greg Atkinson, Bernd Richter, Maria-Inti Metzendorf, Louise Baur, Nicholas Finer, Eva Corpeleijn, Claire O'Malley, Louisa J Ells
BACKGROUND: Child and adolescent obesity has increased globally, and can be associated with significant short- and long-term health consequences. OBJECTIVES: To assess the efficacy of drug interventions for the treatment of obesity in children and adolescents. SEARCH METHODS: We searched CENTRAL, MEDLINE, Embase, PubMed (subsets not available on Ovid), LILACS as well as the trial registers ICTRP (WHO) and ClinicalTrials.gov. Searches were undertaken from inception to March 2016...
November 29, 2016: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/27895088/hormonal-alterations-in-pcos-and-its-influence-on-bone-metabolism
#13
Abhaya Krishnan, Sridhar Muthusami
According to the World Health Organization (WHO) polycystic ovary syndrome (PCOS) occurs in 4-8% of women worldwide. The prevalence of PCOS in Indian adolescents is 12.2% according to ICMR (Indian Council of Medical Research) report. National Institute of Health documented that it affects approximately 5 million women of reproductive age in the United States . Hormonal imbalance is the characteristic of many women with polycystic ovarian syndrome. The impact of various endocrine changes in PCOS women and their relevance to bone remains to be documented...
November 28, 2016: Journal of Endocrinology
https://www.readbyqxmd.com/read/27894262/erratum-to-statistical-methodology-for-age-adjustment-of-the-gh-2000-score-detecting-growth-hormone-misuse
#14
Dankmar Böhning, Walailuck Böhning, Nishan Guha, David A Cowan, Peter H Sönksen, Richard I G Holt
No abstract text is available yet for this article.
November 28, 2016: BMC Medical Research Methodology
https://www.readbyqxmd.com/read/27884522/exposure-to-phthalates-in-children-aged-5-7years-associations-with-thyroid-function-and-insulin-like-growth-factors
#15
Wei Wu, Feng Zhou, Yue Wang, Yong Ning, Jian-Ye Yang, Yi-Kai Zhou
This study aimed to evaluate the associations between phthalate concentrations and thyroid function in preschool children. We collected demographic data and biological samples from 216 children aged 5-7years. We calculated urinary concentrations of eight mono-phthalate metabolites (mPAEs) separately for children from urban and rural areas and investigated their associations with thyroid function and growth hormones. mPAE concentrations were higher in children from the urban area than in those from the rural area, and most mPAEs were positively associated with free triiodothyronine and free thyroxine...
November 21, 2016: Science of the Total Environment
https://www.readbyqxmd.com/read/27884139/brominated-flame-retardants-in-placental-tissues-associations-with-infant-sex-and-thyroid-hormone-endpoints
#16
Christopher Leonetti, Craig M Butt, Kate Hoffman, Stephanie C Hammel, Marie Lynn Miranda, Heather M Stapleton
BACKGROUND: Brominated flame retardants (BFRs) are endocrine disruptors that bioaccumulate in the placenta, but it remains unclear if they disrupt tissue thyroid hormone (TH) metabolism. Our primary goal was to investigate associations between placental BFRs, TH levels, Type 3 deiodinase (DIO3) activity and TH sulfotransferase (SULT) activities. METHODS: Placenta samples collected from 95 women who delivered term (>37 weeks) infants in Durham, NC, USA (enrolled 2010-2011) were analyzed for polybrominated diphenyl ethers (PBDEs), 2,4,6-tribromophenol (2,4,6-TBP), THs (T4, T3 and rT3), and DIO3 and TH SULT activities...
November 25, 2016: Environmental Health: a Global Access Science Source
https://www.readbyqxmd.com/read/27882303/ovarian-like-differentiation-in-eutopic-and-ectopic-endometrioses-with-aberrant-fsh-receptor-insl3-and-gata4-6-expression
#17
Baptiste Fouquet, Pietro Santulli, Jean-Christophe Noel, Micheline Misrahi
Endometriosis, the hormone-dependent extrauterine dissemination of endometrial tissue outside the uterus, affects 5-15% of women of reproductive age. Pathogenesis remains poorly understood as well as the estrogen production by endometriotic tissue yielding autocrine growth. Estrogens (E2) are normally produced by the ovaries. We investigated whether aberrant "ovarian-like" differentiation occurred in endometriosis. 69 women, with (n = 38) and without (n = 31) histologically proven endometriosis were recruited...
December 2016: BBA Clinical
https://www.readbyqxmd.com/read/27873076/the-association-of-testosterone-sex-hormone-binding-globulin-and-insulin-like-growth-factor-1-with-bone-parameters-in-korean-men-aged-50%C3%A2-years-or-older
#18
Hye-Jung Kim, Hyung Suk Koo, Young-Sang Kim, Moon Jong Kim, Kwang-Min Kim, Nam-Seok Joo, Ji-Hee Haam
Testosterone and insulin-like growth factor-1 (IGF-1) are essential factors for the maintenance of bone health in men. However, the results for the association of testosterone and IGF-1 with bone parameters were not consistent in prior studies. We evaluated the relationship of testosterone, sex hormone-binding globulin (SHBG), and IGF-1 with bone mineral density (BMD) and bone turnover markers (BTMs) in Korean men. We enrolled 1227 men aged ≥50 years in this cross-sectional study. Serum levels of total testosterone (TT), SHBG, IGF-1, osteocalcin, and C-terminal cross-linking telopeptide of type I collagen (CTX) were measured...
November 21, 2016: Journal of Bone and Mineral Metabolism
https://www.readbyqxmd.com/read/27871765/-evaluation-of-cardiac-function-in-a-group-of-small-for-gestational-age-school-age-children-treated-with-growth-hormone
#19
Esther Aurensanz Clemente, Ariadna Ayerza Casas, Pilar Samper Villagrasa, Pablo Ruiz Frontera, Gloria Bueno Lozano
INTRODUCTION AND OBJECTIVES: Small for gestational age (SGA) patients have an increased risk of developing a cardiovascular pathology, as well as a metabolic syndrome. Our objective is to evaluate the cardiac morphology and function of SGA children treated with growth hormone (GH), identifying changes that could potentially have long-term consequences. METHODS: We selected 23 SGA school-age patients and 23 healthy children. We measured their weight, height, blood pressure and heart rate...
November 18, 2016: Medicina Clínica
https://www.readbyqxmd.com/read/27871469/placental-telomere-length-decline-with-gestational-age-differs-by-sex-and-tert-dnmt1-and-dnmt3a-dna-methylation
#20
Samantha L Wilson, Yao Liu, Wendy P Robinson
INTRODUCTION: Telomere length (TL) has been suggested to be influenced by inherited genetic and epigenetic variation, hormonal effects, oxidative stress and age. However, the dynamics of TL during in utero development have not been well explored. This study investigates the relationship between placental TL and sex, gestational age (GA), and DNA methylation (DNAm). Placental TL is further evaluated in pregnancies complicated by preeclampsia (PE) and intrauterine growth restriction (IUGR), conditions hypothesized to lead to decreased placental TL due to increased oxidative stress...
December 2016: Placenta
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