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Growth Hormone and aging

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https://www.readbyqxmd.com/read/28435630/association-of-insulin-like-growth-factor-i-with-the-severity-and-outcomes-of-acute-ischemic-stroke
#1
Masoud Mehrpour, Hessam Rahatlou, Negar Hamzehpur, Sahand Kia, Mahdi Safdarian
Background: The aim of this study was to evaluate whether higher serum levels of insulin-like growth factor-I (IGF-I) in the acute phase of ischemic stroke are associated with less severe strokes and better functional outcome in a period of 12-month follow-up. Methods: From October 2014 to August 2015, patients with the diagnosis of acute ischemic stroke admitted to the stroke unit of Firoozgar Hospital, Tehran, Iran, entered this prospective study. National Institutes of Health Stroke Scale (NIHSS) and Modified Rankin Scale (MRS) for stroke scores were used to measure the severity and outcomes of an acute ischemic stroke at the time of admission and 1 year after the stroke, respectively...
October 7, 2016: Iranian Journal of Neurology
https://www.readbyqxmd.com/read/28432267/assessment-of-lung-function-in-a-large-cohort-of-patients-with-acromegaly
#2
Sylvere Störmann, Bodo Gutt, Josefine Roemmler-Zehrer, Martin Bidlingmaier, Rudolf Maria Huber, Jochen Schopohl, Matthias Angstwurm
OBJECTIVE: Acromegaly is associated with increased mortality due to respiratory disease. To date, lung function in patients with acromegaly has only been assessed in small studies, with contradicting results. We assessed lung function parameters in a large cohort of patients with acromegaly. DESIGN: Lung function of acromegaly patients was prospectively assessed using spirometry, blood gas analysis and body plethysmography. Biochemical indicators of acromegaly were assessed through measurement of growth hormone and IGF-I levels...
April 21, 2017: European Journal of Endocrinology
https://www.readbyqxmd.com/read/28430293/three-cases-of-ectopic-sphenoid-sinus-pituitary-adenoma
#3
Ernest Jan Bobeff, Karol Wiśniewski, Wielisław Papierz, Ludomir Stefańczyk, Dariusz Jan Jaskólski
<i><b>Introduction</b>: Ectopic sphenoid sinus pituitary adenoma is a rare tumour originating from embryologic remnants of Rathke's pouch. Although it is considered a clinically benign neoplasm, necrosis is encountered in 25% of cases and it can invade adjacent bone structures. <b>Aims</b>: To establish clinical, radiological and histopathological features of ectopic sphenoid sinus pituitary adenoma. <b>Material and methods: </b> Analysis of three cases: two females and one man, aged 61-70...
2017: Folia Neuropathologica
https://www.readbyqxmd.com/read/28428364/role-of-oestrogen-receptor-signaling-in-skeletal-response-to-leptin-in-female-ob-ob-mice
#4
Russell T Turner, Kenneth A Philbrick, Amida Kuah, Adam J Branscum, Urszula T Iwaniec
Leptin, critical in regulation of energy metabolism, is also important for normal bone growth, maturation and turnover. Compared to wild type (WT) mice, bone mass is lower in leptin-deficient ob/ob mice; osteopenia in growing ob/ob mice is due to decreased bone accrual, and is associated with reduced longitudinal bone growth, impaired cancellous bone maturation and increased marrow adipose tissue (MAT). However, leptin deficiency also results in gonadal dysfunction, disrupting production of gonadal hormones which regulate bone growth and turnover...
April 20, 2017: Journal of Endocrinology
https://www.readbyqxmd.com/read/28427982/preoperative-evaluation-of-sellar-and-parasellar-macro-lesions-by-fluorine-18-fluorodeoxyglucose-positron-emission-tomography
#5
Masahiko Tosaka, Tetsuya Higuchi, Keishi Horiguchi, Tadashi Osawa, Yukiko Arisaka, Haruyasu Fujita, Yoshito Tsushima, Yuhei Yoshimoto
OBJECTIVE: Various pathologies can occur in the sellar and suprasellar regions. The potential of fluorine-18 fluorodeoxyglucose (FDG) positron emission tomography (PET) for the preoperative evaluation of sellar and parasellar lesions was investigated. METHODS: A total of 49 patients aged 8 to 82 years with sellar and parasellar macroscopic lesions (≥10 mm) underwent FDG PET. Twenty-two patients had pituitary adenomas, including 14 non-functioning and 8 growth hormone (GH)-secreting adenomas...
April 17, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28427039/low-dose-growth-hormone-treatment-in-infants-and-toddlers-with-prader-willi-syndrome-is-comparable-to-higher-dosage-regimens
#6
Elly Scheermeyer, Mark Harris, Ian Hughes, Patricia A Crock, Geoffrey Ambler, Charles F Verge, Phil Bergman, George Werther, Maria E Craig, Catherine S Choong, Peter S W Davies
OBJECTIVE: Evaluate benefit and risk of low dose growth hormone treatment (GHT, 4.5mg/m(2)/week) in very young children with Prader-Willi Syndrome (PWS). DESIGN: Prospective longitudinal clinical intervention. METHODS: We evaluated 31 infants (aged 2-12months) and 42 toddlers (13-24months) from the PWS-OZGROW database for height, weight and BMI using the World Health Organization standard deviation scores (SDSWHO) and PWS specific BMI (SDSPWS), bone age, insulin-like growth factor 1 (IGF-I) levels and adverse events over 3years of GHT...
March 24, 2017: Growth Hormone & IGF Research
https://www.readbyqxmd.com/read/28427038/urinary-triclosan-concentrations-during-pregnancy-and-birth-outcomes
#7
Taylor M Etzel, Antonia M Calafat, Xiaoyun Ye, Aimin Chen, Bruce P Lanphear, David A Savitz, Kimberly Yolton, Joseph M Braun
BACKGROUND: Triclosan is an antimicrobial chemical used in consumer products, and exposure is ubiquitous among pregnant women in the United States. Triclosan may reduce the levels of thyroid hormones that are important for fetal growth and development. OBJECTIVE: We investigated the relationship of prenatal triclosan exposure with birth anthropometry and gestational duration. METHODS: We used data from 378 mother-child pairs participating in the Health Outcomes and Measures of the Environment (HOME) Study, a prospective pregnancy and birth cohort from Cincinnati, OH...
April 17, 2017: Environmental Research
https://www.readbyqxmd.com/read/28426343/de-novo-mutation-of-kat6b-gene-causing-atypical-say-barber-biesecker-young-simpson-syndrome-or-genitopatellar-syndrome
#8
Guoqiang Li, Niu Li, Juan Li, Yu Ding, Tingting Yu, Xiumin Wang, Jian Wang
Mutations in KAT6B gene are responsible for Say-Barber-Biesecker-Young-Simpson syndrome (SBBYSS) and genitopatellar syndrome (GPS), with most mutations occurring in exon 18. A 4-year-old Chinese boy presented with short stature but no other clinical features of SBBYSS or GPS had a de novo novel nonsense pathogenic mutation in exon 14 of the KAT6B gene at position c.2636T>A (p.Leu879X). The correlation analysis of genotype-phenotype indicated distinctive clinical features (short stature, growth hormone deficiency, and delayed bone age) compared with the classical mutations of KAT6B gene...
April 2017: Fetal and Pediatric Pathology
https://www.readbyqxmd.com/read/28425851/altered-structure-and-function-of-adipose-tissue-in-long-lived-mice-with-growth-hormone-related-mutations
#9
Justin Darcy, Samuel McFadden, Andrzej Bartke
A major focus of biogerontology is elucidating the role(s) of the endocrine system in aging and the accumulation of age-related diseases. Endocrine control of mammalian longevity was first reported in Ames dwarf (Prop1(df)) mice, which are long-lived due to a recessive Prop1 loss-of-function mutation resulting in deficiency of growth hormone (GH), thyroid-stimulating hormone, and prolactin. Following this report, several other GH-related mutants with altered longevity have been described including long-lived Snell dwarf and growth hormone receptor knockout mice, and short-lived GH overexpressing transgenic mice...
March 21, 2017: Adipocyte
https://www.readbyqxmd.com/read/28425063/blastocyst-derived-stem-cell-populations-under-stress-impact-of-nutrition-and-metabolism-on-stem-cell-potency-loss-and-miscarriage
#10
REVIEW
Yu Yang, Alan Bolnick, Alexandra Shamir, Mohammed Abdulhasan, Quanwen Li, G C Parker, Elizabeth E Puscheck, D A Rappolee
Data from in vitro and in vivo models suggest that malnutrition and stress trigger adaptive responses, leading to small for gestational age (SGA) blastocysts with fewer cell numbers. These stress responses are initially adaptive, but become maladaptive with increasing stress exposures. The common stress responses of the blastocyst-derived stem cells, pluripotent embryonic and multipotent placental trophoblast stem cells (ESCs and TSCs), are decreased growth and potency, and increased, imbalanced and irreversible differentiation...
April 19, 2017: Stem Cell Reviews
https://www.readbyqxmd.com/read/28423398/treatment-restarting-after-discontinuation-of-adjuvant-hormone-therapy-in-breast-cancer-patients
#11
Wei He, Karin E Smedby, Fang Fang, Henrik Olsson, Sara Margolin, Per Hall, Kamila Czene
Background: Over half of breast cancer patients discontinue their adjuvant hormone therapy, permanently or temporarily. We aimed to identify predictors of treatment restarting after discontinuation of adjuvant hormone therapy and to test the hypothesis that treatment restarting is associated with better breast cancer outcomes. Methods: We conducted a population-based cohort study by linking data from the Stockholm-Gotland Breast Cancer Register, the Swedish Prescribed Drug Register, and a self-reported questionnaire...
October 1, 2017: Journal of the National Cancer Institute
https://www.readbyqxmd.com/read/28422941/metabolism-related-micrornas-in-maternal-breast-milk-are-influenced-by-premature-delivery
#12
Molly C Carney, Andrij Tarasiuk, Susan L DiAngelo, Patricia Silveyra, Abigail Podany, Leann L Birch, Ian M Paul, Shannon Kelleher, Steven D Hicks
BACKGROUND: Maternal breast milk (MBM) is enriched in microRNAs, factors that regulate protein translation throughout the human body. MBM from mothers of term and preterm infants differ in nutrient, hormone, and bioactive-factor composition, but the microRNA differences between these groups have not been compared. We hypothesized that gestational age at delivery influences microRNA in MBM, particularly microRNAs involved in immunologic and metabolic regulation. METHODS: MBM from mothers of premature infants (pMBM) obtained 3-4 weeks post-delivery was compared with MBM from mothers of term infants obtained at birth (tColostrum) and 3-4 weeks post-delivery (tMBM)...
April 19, 2017: Pediatric Research
https://www.readbyqxmd.com/read/28422341/late-pubertal-growth-spurt-in-a-girl-with-growth-hormone-deficiency-is-kaufmann-therapy-effective-in-a-girl-with-short-stature-who-responds-poorly-to-growth-hormone-therapy-and-estrogen-replacement-therapy
#13
Katsuhiko Yasuda
A Japanese senior high school girl aged 18 years and 5 months with growth hormone deficiency was referred for primary amenorrhea. Her height was 1.36 m, and her bodyweight was 23.5 kg. She had received daily growth hormone therapy from the age of 5 years. Growth hormone therapy was discontinued at the age of 16 years and 11 months, and estrogen-replacement therapy (ERT) was started to stimulate secondary sexual characteristics. Although ERT was performed until the age of 18 years and 11 months, genital bleeding did not occur...
April 19, 2017: Journal of Obstetrics and Gynaecology Research
https://www.readbyqxmd.com/read/28421725/no-association-of-positive-superficial-and-or-deep-margins-with-local-recurrence-in-invasive-breast-cancer-treated-with-breast-conserving-surgery
#14
Tae In Yoon, Jong Won Lee, Sae Byul Lee, Guiyun Sohn, Jisun Kim, Il Young Chung, Hee Jeong Kim, Beom Seok Ko, Byung Ho Son, Gyungyub Gong, Sung-Bae Kim, Su Ssan Kim, Seung Do Ahn, Minsung Chung, Sei Hyun Ahn
Purpose: We evaluated the effect of positive superficial and/or deep margin status on local recurrence (LR) in invasive breast cancer treated with breast-conserving surgery (BCS) followed by radiotherapy. Materials and Methods: In total, 3403 stage 1 and 2 invasive breast cancer patients treated with BCS followed by radiotherapy from January 2000 to December 2008 were included in this study. These patients were divided into 3 groups according to margin status: clear resection margin status for all sections (group 1, n = 3195); positive margin status in superficial and/or deep sections (group 2, n = 121); and positive peripheral parenchymal margin regardless of superficial and/or deep margin involvement (group 3, n = 87)...
April 14, 2017: Cancer Research and Treatment: Official Journal of Korean Cancer Association
https://www.readbyqxmd.com/read/28417351/detrimental-effect-of-maternal-and-post-weaning-high-fat-diet-on-the-reproductive-function-in-the-adult-female-offspring-rat-roles-of-insulin-like-growth-factor-2-and-the-ovarian-circadian-clock
#15
Yu-Ju Lin, Ching-Chou Tsai, Li-Tung Huang, Jiunn-Ming Sheen, Mao-Meng Tiao, Hong-Ren Yu, Chih-Cheng Chen, You-Lin Tain
PURPOSE: We evaluate the impact of maternal and post-weaning high-fat (HF) diet on ovarian follicular population, steroidogenesis, and gene expression with a focus on the circadian clock system and insulin-like growth factor 2 (Igf2) in adult offspring ovaries, and to elucidate whether a maternal and post-weaning diet confers similar risks. METHODS: Virgin Sprague-Dawley rats were fed with normal chow (C) diet or HF diet for 5 weeks before mating, during gestation, and lactation...
April 17, 2017: Journal of Assisted Reproduction and Genetics
https://www.readbyqxmd.com/read/28413529/an-evaluation-of-neuroendocrine-dysfunction-following-acute-aneurysmal-subarachnoid-hemorrhage-a-prospective-study
#16
Awadhesh Kumar Jaiswal, Subhash Yadav, Rabi Narayan Sahu, Anant Mehrotra, Sanjay Behari, Ashok Kumar Mahapatra
OBJECTIVE: The aim was to investigate the incidence and pattern of neuroendocrine changes in cases of acute aneurysmal subarachnoid hemorrhage (SAH). MATERIALS AND METHODS: Endocrine assessment was performed in 100 consecutive cases of acute aneurysmal SAH presenting within 7 days of ictus. The gonadotropic, somatotrophic, thyrotropic, and corticotrophic axes were evaluated for their possible dysfunction. RESULTS: A total of 100 cases (38 males, 62 females; age range - 17-76 years; mean age - 43...
January 2017: Asian Journal of Neurosurgery
https://www.readbyqxmd.com/read/28405606/changes-in-markers-of-mineral-metabolism-after-living-kidney-donation
#17
Sven-Jean Tan, Tim D Hewitson, Peter D Hughes, Stephen G Holt, Nigel D Toussaint
BACKGROUND: Living kidney donors (LKDs) experience reduction in kidney function, however serum phosphate (sPi) levels are lower compared to patients with chronic kidney disease matched for reduced kidney function. Mineral metabolism adaptations that occur in LKDs have not been adequately investigated. To evaluate the effect of nephrectomy on markers of mineral metabolism in LKDs compared to healthy volunteers (HV) over 12 months. METHODS: Mineral parameters were evaluated in twenty-one adult LKDs and twenty HVs...
April 2017: Transplantation Direct
https://www.readbyqxmd.com/read/28403619/insulin-like-growth-factor-is-associated-with-changes-in-body-composition-with-art-initiation
#18
Kristine M Erlandson, Suzanne P Fiorillo, Sandra Wagner Cardoso, Cynthia Rivere, Jorge Sanchez, James Hakim, Nagalingeswaran Kumarasamy, Sharlaa Badal-Fasesen, Umesh Lalloo, Johnstone J Kumwenda, Thomas B Campbell, Todd Brown
BACKGROUND: Growth hormone (GH)/insulin-like growth factor (IGF)-1 axis abnormalities have been associated with body composition changes among HIV-infected persons with wasting or lipodystrophy. Little is known of GH/IGF-1 axis alterations with ART initiation or differing ART therapies. METHODS: The AIDS Clinical Trials Group Prospective Evaluation of Antiretrovirals in Resource- Limited Settings (PEARLS) study was a prospective, randomized clinical trial of ART initiation with emtricitabine/tenofovir + efavirenz (FTC/TDF+EFV) vs lamivudine/zidovudine + efavirenz (3TC/ZDV+EFV) in HIV-1-infected individuals from resource-diverse settings...
April 12, 2017: AIDS Research and Human Retroviruses
https://www.readbyqxmd.com/read/28400273/the-role-of-vitamin-d-in-the-endocrinology-controlling-calcium-homeostasis
#19
REVIEW
James C Fleet
Vitamin D and its' metabolites are a crucial part of the endocrine system that controls whole body calcium homeostasis. The goal of this hormonal control is to regulate serum calcium levels so that they are maintained within a very narrow range. To achieve this goal, regulatory events occur in coordination at multiple tissues, e.g. the intestine, kidney, bone, and parathyroid gland. Production of the vitamin D endocrine hormone, 1,25 dihydroxyvitamin D (1,25(OH)2 D) is regulated by habitual dietary calcium intake and physiologic states like growth, aging, and the menopause...
April 9, 2017: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/28399519/pharmacokinetic-and-pharmacodynamic-modeling-of-mod-4023-a-long-acting-human-growth-hormone-in-growth-hormone-deficiency-children
#20
Dennis M Fisher, Ron G Rosenfeld, Michal Jaron-Mendelson, Leanne Amitzi, Ronit Koren, Gili Hart
BACKGROUND/AIMS: MOD-4023 is a long-acting human growth hormone (hGH) in clinical trials for the treatment of growth hormone deficiency (GHD). A key goal is maintenance of serum concentrations of insulin-like growth factor (IGF) 1 within normal range throughout GH dosing. The study aimed to develop a pharmacokinetic model for MOD-4023 and a pharmacodynamic model for the effect of MOD-4023 on IGF-1 to allow estimation of peak and mean IGF-1 and to identify the optimal IGF-1 sampling day...
April 11, 2017: Hormone Research in Pædiatrics
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