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https://www.readbyqxmd.com/read/29038330/can-growth-hormone-treatment-improve-growth-in-children-with-severe-growth-failure-due-to-anorexia-nervosa-a-preliminary-pilot-study
#1
Juliane Leger, Anne Fjellestad-Paulsen, Anne Bargiacchi, Catherine Doyen, Emmanuel Ecosse, Jean-Claude Carel, Marie-France Le Heuzey
BACKGROUND/AIMS: Growth failure is a difficult, but key aspect of care in children with anorexia nervosa (AN). The effects of hGH therapy have not been studied. The aim was to investigate the effect of hGH treatment on height velocity (HV) in children with AN. METHODS: We carried out a retrospective observational study. Ten girls diagnosed with AN at 10.0±1.9 years, with prolonged severe growth failure (HV <2.5 cm/year for at least 18 months) at the age of 13...
October 16, 2017: Endocrine Connections
https://www.readbyqxmd.com/read/28936199/bone-status-in-a-patient-with-insulin-like-growth-factor-1-receptor-deletion-syndrome-bone-quality-and-structure-evaluation-using-dual-energy-x-ray-absorptiometry-peripheral-quantitative-computed-tomography-and-quantitative-ultrasonography
#2
Paola Pelosi, Elisabetta Lapi, Loredana Cavalli, Alberto Verrotti, Marilena Pantaleo, Maurizio de Martino, Stefano Stagi
Haploinsufficiency of the insulin-like growth factor (IGF)-1 receptor (IGF1R) gene is a rare, probably under-diagnosed, cause of short stature. However, the effects of IGF1R haploinsufficiency on glucose metabolism, bone status, and metabolism have rarely been investigated. We report the case of a patient referred to our center at the age of 18 months for short stature, failure to thrive, and Silver-Russell-like phenotype. Genetic analysis did not show hypomethylation of the 11p15.5 region or uniparental disomy of chromosome 7...
2017: Frontiers in Endocrinology
https://www.readbyqxmd.com/read/28926879/-systematic-evaluation-on-effectiveness-and-safety-of-recombinant-human-growth-hormone-in-treating-adult-patients-with-severe-burn
#3
F Y Tian, B Wu, T Xu, X H Jiang
Objective: To systcmatically evaluate the effectiveness and safety of recombinant human growth hormone (rhGH) in treating adults with severe burn. Methods: Databases including PubMed, Cochrane Library, and Embase were searched using key words " burns, thermal, human growth hormone, growth hormone, hGH, and somatropin (human)" , and China Biology Medicine disc, Chinese Journals Full-text Database, VIP Database, and Wanfang Database were searched using key words in Chinese version "," to obtain the randomized controlled trials about rhGH in the treatment of adults with severe burn from the establishment of each database to December 2016...
September 20, 2017: Zhonghua Shao Shang za Zhi, Zhonghua Shaoshang Zazhi, Chinese Journal of Burns
https://www.readbyqxmd.com/read/28924868/photodegradation-pathways-of-protein-disulfides-human-growth-hormone
#4
Daniel Steinmann, Olivier Mozziconacci, Rupesh Bommana, John F Stobaugh, Y John Wang, Christian Schöneich
PURPOSE: Comprehensive product characterization was performed for the photodegradation of protein disulfides, representatively of human growth hormone (somatotropin; hGH), in order to provide a product database, which will be useful for the general analysis of protein stability. METHODS: HGH was photo-irradiated at λ = 254 and λ > 295 nm and tryptic digests were analyzed by HPLC-MS to investigate light-induced disulfide degradation pathways. RESULTS: A total of 60 products were detected, and structures/tentative structures were assigned to the products by MS(2) and MS(3) analysis...
September 18, 2017: Pharmaceutical Research
https://www.readbyqxmd.com/read/28915901/possible-effects-of-an-early-diagnosis-and-treatment-in-patients-with-growth-hormone-deficiency-the-state-of-art
#5
REVIEW
Stefano Stagi, Perla Scalini, Giovanni Farello, Alberto Verrotti
Growth hormone deficiency (GHD) is a relatively uncommon and heterogeneous endocrine disorder presenting in childhood with short stature. However, during the neonatal period, the metabolic effects of GHD may to require prompt replacement therapy to avoid possible life-threatening complications. An increasing amount of data suggests the importance of an early diagnosis and treatment of GHD because of its auxological, metabolic, and neurodevelopmental features with respect to the patients diagnosed and treated later in life...
September 16, 2017: Italian Journal of Pediatrics
https://www.readbyqxmd.com/read/28851205/designing-signal-peptides-for-efficient-periplasmic-expression-of-human-growth-hormone-in-escherichia-coli
#6
Meisam Jeirani Khameneh, Farzaneh Moshiri, Soheil Keyhan Falasafi, Alireza Zomorodipour
Secretion efficiency of a protein in a SEC-type secretion system is mainly determined by an N-terminal signal peptide and its combination with its cognate protein. Five signal peptides, including; two synthetic Sec-type and three Bacillus licheniformis alpha-amylase derived signal peptides were compared for periplasmic expression of the human growth hormone (hGH) in E. coli. Based on in silico predictions on the signal peptides' cleavage efficiencies and their corresponding mRNA secondary structures, a number of amino acid substitutions and silent mutations were considered in the modified signal sequences...
August 31, 2017: Journal of Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28842980/escherichia-coli-tatexpress-strains-super-secrete-human-growth-hormone-into-the-bacterial-periplasm-by-the-tat-pathway
#7
Douglas F Browning, Kirsty L Richards, Amber R Peswani, Jo Roobol, Stephen J W Busby, Colin Robinson
Numerous high-value proteins are secreted into the Escherichia coli periplasm by the General Secretory (Sec) pathway, but Sec-based production chassis cannot handle many potential target proteins. The Tat pathway offers a promising alternative because it transports fully folded proteins; however, yields have been too low for commercial use. To facilitate Tat export, we have engineered the TatExpress series of super-secreting strains by introducing the strong inducible bacterial promoter, ptac, upstream of the chromosomal tatABCD operon, to drive its expression in E...
August 26, 2017: Biotechnology and Bioengineering
https://www.readbyqxmd.com/read/28748655/high-throughput-automated-microbial-bioreactor-system-used-for-clone-selection-and-rapid-scale-down-process-optimisation
#8
M Lourdes Velez-Suberbie, John Pj Betts, Kelly L Walker, Colin Robinson, Barney Zoro, Eli Keshavarz-Moore
High throughput automated fermentation systems have become a useful tool in early bioprocess development. In this study, we investigated a 24 x 15 mL single use microbioreactor system, ambr 15f, designed for microbial culture. We compared the fed-batch growth and production capabilities of this system for two Escherichia coli strains, BL21 (DE3) and MC4100, and two industrially relevant molecules, hGH and scFv. In addition, different carbon sources were tested using bolus, linear or exponential feeding strategies, showing the capacity of the ambr 15f system to handle automated feeding...
July 27, 2017: Biotechnology Progress
https://www.readbyqxmd.com/read/28748371/acute-effects-of-heated-resistance-exercise-in-female-and-male-power-athletes
#9
Julia R Casadio, Adam G Storey, Fabrice Merien, Andrew E Kilding, James D Cotter, Paul B Laursen
PURPOSE: To determine the effects of heated resistance exercise on thermal strain, neuromuscular function and hormonal responses in power athletes. METHODS: Sixteen (n = 8 female; 8 male) highly trained power athletes completed a combined strength and power resistance exercise session in hot (HOT ~30 °C) and temperate (CON ~20 °C) conditions. Human growth hormone (hGH), cortisol and testosterone concentrations in plasma, peak power (counter-movement jump, CMJ) and peak force (isometric mid-thigh pull) were measured before and after each training session; thermoregulatory responses were monitored during training...
July 26, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/28730965/efficient-non-invasive-plasmid-dna-administration-into-tibialis-cranialis-muscle-of-little-mice
#10
C R Cecchi, E Higuti, E R Lima, D P Vieira, P L Squair, C N Peroni, P Bartolini
BACKGROUND: An alternative treatment for growth hormone deficiency based on hGH-DNA administration, followed by electro gene transfer, was investigated by injecting the plasmid into surgically exposed or non-exposed quadriceps or tibialis muscle of immunodeficient "little" mice. METHODS: An optimization of electrotransfer conditions via a new combination of high/low voltage pulses is presented. After 3 days, serum hGH was determined and in a 28-day assay, the relative growth parameters were compared...
2017: Current Molecular Medicine
https://www.readbyqxmd.com/read/28724261/development-of-a-sandwich-enzyme-linked-immunosorbent-assay-for-dtmp-gh-fusion-protein-by-rational-immunogen-selection
#11
Song Wang, Mingqiang Shen, Shilei Chen, Cheng Wang, Fang Chen, Mo Chen, Gaomei Zhao, Xinze Ran, Tianmin Cheng, Yongping Su, Yang Xu, Junping Wang
dTMP-GH is a chimeric protein containing a tandem dimer of thrombopoietin mimetic peptide (dTMP) fused to human growth hormone (hGH) prepared previously by our team. It shows significant bioactivity in promoting thrombocytopoiesis, but detection of intact dTMP-GH in plasma is still a challenge due to the presence of endogenous hGH. In this study, a rabbit polyclonal antibody with high affinity to dTMP was obtained with a BSA-conjugated immunogen composed of 20 amino acids sequence spanning two TMP and the linker...
December 2017: AMB Express
https://www.readbyqxmd.com/read/28720174/selective-determination-of-human-growth-hormone-somatropin-in-the-presence-of-its-chemical-degradation-products
#12
Mamdouh R Rezk, Marwa F Mohamed, Faten Abdelaziz Fathalla, Mostafa A Shehata
A rapid and sensitive HPLC method was developed and validated for selective determination of the human growth hormone (hGH) somatropin in the presence of its deamidated and oxidized degradation products. Reversed-phase chromatography with an acetonitrile and ammonium bicarbonate mobile phase in gradient elution mode was used. A short run time of 15 min allowed rapid and cost-effective analysis, with an average retention time of 7.4 min for native hGH, 6.2 min for its deamidated form, and 4.3 and 6 min for its oxidized variants...
July 1, 2017: Journal of AOAC International
https://www.readbyqxmd.com/read/28700563/the-relationship-between-serum-levels-of-prolactin-and-growth-hormone-in-the-early-postnatal-period
#13
Jonathan Daliot, Tami Laron-Kenet, Mohammad Wattad, Anat Ben-Dor, Pearl Lilos, Zvi Laron
BackgroundIn the neonatal period, the pituitary hormones including prolactin (PRL) and human growth hormone (hGH) are secreted in high amounts due to immature feedback mechanisms. As both hormones are secreted in part by the same somatomammotrophic cells, we investigated their relationship in newborns with respect to sex, gestational week, method of delivery, and anthropometric data.MethodsThe serum levels of PRL and hGH were measured in blood drawn from 225 newborns. The newborn data were extracted from medical records...
November 2017: Pediatric Research
https://www.readbyqxmd.com/read/28659813/human-peritoneal-mesothelial-cell-death-induced-by-high-glucose-hypertonic-solution-involves-ca-2-and-na-ions-and-oxidative-stress-with-the-participation-of-pkc-nox2-and-pi3k-akt-pathways
#14
Felipe Simon, Pablo Tapia, Ricardo Armisen, Cesar Echeverria, Sebastian Gatica, Alejandro Vallejos, Alejandro Pacheco, Maria E Sanhueza, Miriam Alvo, Erico Segovia, Rubén Torres
Chronic peritoneal dialysis (PD) therapy is equally efficient as hemodialysis while providing greater patient comfort and mobility. Therefore, PD is the treatment of choice for several types of renal patients. During PD, a high-glucose hyperosmotic (HGH) solution is administered into the peritoneal cavity to generate an osmotic gradient that promotes water and solutes transport from peritoneal blood to the dialysis solution. Unfortunately, PD has been associated with a loss of peritoneal viability and function through the generation of a severe inflammatory state that induces human peritoneal mesothelial cell (HPMC) death...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28656605/somapacitan-a-once-weekly-reversible-albumin-binding-gh-derivative-in-children-with-gh-deficiency-a-randomized-dose-escalation-trial
#15
Tadej Battelino, Michael Højby Rasmussen, Jean De Schepper, Nehama Zuckerman-Levin, Zoran Gucev, Lars Sävendahl
OBJECTIVE: To evaluate the safety, local tolerability, pharmacodynamics and pharmacokinetics of escalating single doses of once-weekly somapacitan, a reversible, albumin-binding GH derivative, vs once-daily GH in children with GH deficiency (GHD). DESIGN: Phase 1, randomized, open-label, active-controlled, dose-escalation trial (NCT01973244). PATIENTS: Thirty-two prepubertal GH-treated children with GHD were sequentially randomized 3:1 within each of four cohorts to a single dose of somapacitan (0...
June 28, 2017: Clinical Endocrinology
https://www.readbyqxmd.com/read/28617312/autocrine-human-growth-hormone-promotes-invasive-and-cancer-stem-cell-like-behavior-of-hepatocellular-carcinoma-cells-by-stat3-dependent-inhibition-of-claudin-1-expression
#16
Yi-Jun Chen, Ming-Liang You, Qing-Yun Chong, Vijay Pandey, Qiu-Shi Zhuang, Dong-Xu Liu, Lan Ma, Tao Zhu, Peter E Lobie
Despite progress in diagnosis and treatment of hepatocellular carcinoma (HCC), the clinical outcome is still unsatisfactory. Increased expression of human growth hormone (hGH) in HCC has been reported and is associated with poor survival outcome in HCC patients. Herein, we investigated the mechanism of the oncogenic effects of hGH in HCC cell lines. In vitro functional assays demonstrated that forced expression of hGH in these HCC cell lines promoted cell proliferation, cell survival, anchorage-independent growth, cell migration, and invasion, as previously reported...
June 15, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28611730/exploiting-nanobodies-in-the-detection-and-quantification-of-human-growth-hormone-via-phage-sandwich-enzyme-linked-immunosorbent-assay
#17
Hossam Murad, Jana Mir Assaad, Rasha Al-Shemali, Abdul Qader Abbady
BACKGROUND: Monitoring blood levels of human growth hormone (hGH) in most children with short stature deficiencies is crucial for taking a decision of treatment with extended course of daily and expensive doses of recombinant hGH (rhGH or Somatropin(®)). Besides, misusing of rhGH by sportsmen is banned by the World Anti-Doping Agency and thus sensitive GH-detecting methods are highly welcome in this field. Nanobodies are the tiniest antigen-binding entity derived from camel heavy chain antibodies...
2017: Frontiers in Endocrinology
https://www.readbyqxmd.com/read/28595133/nonclinical-pharmacokinetic-and-pharmacodynamic-characterisation-of-somapacitan-a-reversible-non-covalent-albumin-binding-growth-hormone
#18
Peter Thygesen, Henrik Sune Andersen, Carsten Behrens, Johannes Josef Fels, Leif Nørskov-Lauritsen, Christian Rischel, Nils Langeland Johansen
OBJECTIVE: Somapacitan is an albumin-binding growth hormone derivative intended for once weekly administration, currently in clinical development for treatment of adult as well as juvenile GH deficiency. Nonclinical in vivo pharmacological characterisation of somapacitan was performed to support the clinical trials. Here we present the pharmacokinetic and pharmacodynamic effects of somapacitan in rats, minipigs, and cynomolgus monkeys. METHODS: Pharmacokinetic studies investigating exposure, absorption, clearance, and bioavailability after single intravenous (i...
May 24, 2017: Growth Hormone & IGF Research
https://www.readbyqxmd.com/read/28588001/successful-growth-hormone-therapy-in-cornelia-de-lange-syndrome
#19
Michael de Graaf, Sarina G Kant, Jan Maarten Wit, Egbert Johan Willem Redeker, Gijs Willem Eduard Santen, Annemieke Johanna Maria Henriëtta Verkerk, André Gerardus Uitterlinden, Monique Losekoot, Wilma Oostdijk
Cornelia de Lange Syndrome (CdLS) is a heterogeneous syndrome, both clinically and genetically, in its classical form characterised by distinctive facial features, intra-uterine growth retardation, short stature, developmental delay and anomalies in multiple organ systems. NIPBL, SMC1A, SMC3, RAD21 and HDAC8, all involved in the Cohesin pathway, have been identified to cause CdLS. Growth hormone (GH) secretion has been reported as normal, and to our knowledge there are no reports on the effect of recombinant human GH (r-hGH) treatment in CdLS patients...
June 7, 2017: Journal of Clinical Research in Pediatric Endocrinology
https://www.readbyqxmd.com/read/28551577/bioactive-growth-hormone-in-older-men-and-women-it-s-relationship-to-immune-markers-and-healthspan
#20
William J Kraemer, Mary J Kennett, Andrea M Mastro, Roger J McCarter, Connie J Rogers, William H DuPont, Shawn D Flanagan, William J Turbitt, Maren S Fragala, Emily M Post, Wesley C Hymer
OBJECTIVE: The consequences of age-related decline in the somatotropic axis of humans are complex and remain largely unresolved. We tested the hypothesis that hGH measurements of plasma by bioassay vs immunoassay from samples obtained from free-living, elderly individuals would reveal a dichotomy in GH activities that are correlated with the functional status of the donors, i.e. their healthspan. DESIGN: Forty-one men and women of advanced age (men: N=16, age, 80...
June 2017: Growth Hormone & IGF Research
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