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Recombinant growth hormone

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https://www.readbyqxmd.com/read/29228527/synergistic-effects-of-resistin-and-visfatin-as-adipocyte-derived-hormones-on-telomerase-gene-expression-in-ags-gastric-cancer-cell-line
#1
Masoumeh Mohammadi, Nosratollah Zarghami, Mehdi Hedayati, Sara Ghaemmaghami
Recently suggested that adipocytokines may play a role in pathogenesis and progression of certain cancers, especially in gastric cancer. The previous study showed Resistin and Visfatin, as adipocyte derived hormones, separately increases telomerase (hTERT) gene, the aim of this study is investigating synergic effects of Resistin and Visfatin on telomerase gene expression, in AGS gastric cancer cell line. In this study, human gastric cancer AGS cell line was selected. After stimulation with increasing concentrations of Resistin and Visfatin recombinant proteins for 24 and 48 hours, cell proliferation was assessed by XTT assay...
October 2017: Acta Medica Iranica
https://www.readbyqxmd.com/read/29219047/the-effects-of-genetic-polymorphism-on-treatment-response-of-recombinant-human-growth-hormone
#2
Shi Chen, Hanxiao You, Hui Pan, Huijuan Zhu, Hongbo Yang, Fengying Gong, Linjie Wang, Yu Jiang, Chengsheng Yan
Recombinant human growth hormone (rhGH) has been widely used in clinical treatment of growth hormone deficiency (GHD) or non GHD since 1985 and technology have achieved a great development in different long-acting formulations. Although the mathematical models for predicting the growth hormone response could help clinicians get to an individual personalized growth dose, many patients just can't reach the target height and the growth hormone responses differed.Genetic polymorphisms may play a role in the varies of individual responses in this treatment process...
December 6, 2017: Current Drug Metabolism
https://www.readbyqxmd.com/read/29206809/effect-of-recombinant-human-growth-hormone-therapy-on-blood-lipid-and-carotid-intima-media-thickness-in-children-with-growth-hormone-deficiency
#3
Ming Chen, Dongmei Gan, Yili Luo, Sharvan Rampersad, Lu Xu, Shaoling Yang, Nan Li, Hong Li
BACKGROUND: Reports on the association between growth hormone deficiency (GHD) and cardiovascular risk factors in children are limited. We aim to investigate the effect of different doses of rhGH therapy on blood lipid and cIMT in Chinese GHD children. METHODS: Ninety children including 60 isolated GHD children and 30 healthy children were enrolled. GHD children were randomly divided into 2 groups (A and B) according to rhGH dose given: Group A received 0.23 mg/kg/week and group B 0...
December 5, 2017: Pediatric Research
https://www.readbyqxmd.com/read/29197220/allergic-and-non-allergic-skin-reactions-associated-with-growth-hormone-therapy-elucidation-of-causative-agents
#4
Shilpa Mehta, Vikash Oza, Renee Potashner, Patricia Zamora, Manish Raisingani, Bina Shah
BACKGROUND: Allergic and non-allergic skin reactions to recombinant human growth hormone (rhGH) are uncommon and infrequently reported. However, physicians should be aware of these potential side effects to determine whether the reactions constitute true allergies and how to proceed with growth hormone therapy. To review allergic and non-allergic skin reactions caused by rhGH and subsequent diagnostic workup and management options. CASE PRESENTATION: We report the case of a 12-year-old healthy male presenting with idiopathic short stature...
December 2, 2017: Journal of Pediatric Endocrinology & Metabolism: JPEM
https://www.readbyqxmd.com/read/29191552/production-of-bioactive-recombinant-human-eb-peptide-of-pro-igf-i-and-identification-of-binding-components-from-the-plasma-membrane-of-human-breast-cancer-cells-mda-mb-231
#5
Jay H Lo, Thomas T Chen
E-peptide of the pro-Insulin-like growth factor-I (pro-IGF-I) is produced from pre-pro-IGF-I by proteolytic cleavage in the post-translational processing. The human Eb-peptide (hEb-peptide), derived from the E domain of pro-IGF-IB isoform, is a bioactive molecule whose exact physiological role remains elusive. Accumulated evidence reported from our laboratory indicated that hEb-peptide possesses activity against multiple hallmark characteristics of solid tumor in different cancer cell types. In human breast carcinoma cells (MDA-MB-231), it was demonstrated that hEb-peptide can promote cell attachment to substratum, inhibit colony formation in a semisolid medium, reduce cancer cell invasion, and inhibit cancer-induced angiogenesis...
November 27, 2017: Experimental Cell Research
https://www.readbyqxmd.com/read/29188236/novel-dominant-negative-gh-receptor-mutations-expands-the-spectrum-of-ghi-and-igf-i-deficiency
#6
Kanimozhi Vairamani, Lina Merjaneh, Paula Casano-Sancho, Merve Emecen Sanli, Alessia David, Louise A Metherell, Martin O Savage, Jaime Sánchez Del Pozo, Philippe F Backeljauw, Ron G Rosenfeld, Javier Aisenberg, Andrew Dauber, Vivian Hwa
Context: Autosomal-recessive mutations in the growth hormone receptor (GHR) are the most common causes for primary growth hormone insensitivity (GHI) syndrome with classical GHI phenotypically characterized by severe short stature and marked insulin-like growth factor (IGF)-I deficiency. We report three families with dominant-negative heterozygous mutations in the intracellular domain of the GHR causing a nonclassical GHI phenotype. Objective: To determine if the identified GHR heterozygous variants exert potential dominant-negative effects and are the cause for the GHI phenotype in our patients...
April 1, 2017: Journal of the Endocrine Society
https://www.readbyqxmd.com/read/29176025/a-newborn-with-combined-pituitary-hormone-deficiency-developing-shock-and-sludge
#7
Yasuhiro Ueda, Hayato Aoyagi, Toshihiro Tajima
A male neonate was born at 41 weeks of gestation with a birth weight of 3320 g. Artificial respiratory management was required due to respiratory disturbance 1 h after birth, and subsequently catecholamine-refractory low cardiac output-induced shock occurred. Severe combined pituitary hormone deficiency (CPHD) was considered based on the presence of his respiratory disturbance, hypoglycemia and micropenis. After hydrocortisone (HDC) administration, circulatory dynamics rapidly improved. Brain magnetic resonance imaging (MRI) showed aplasia of the anterior pituitary gland and ectopic posterior gland...
November 25, 2017: Journal of Pediatric Endocrinology & Metabolism: JPEM
https://www.readbyqxmd.com/read/29156254/xenografted-tissue-models-for-the-study-of-human-endometrial-biology
#8
REVIEW
Satu Kuokkanen, Liyin Zhu, Jeffrey W Pollard
The human endometrium undergoes extensive morphological, biochemical and molecular changes under the influence of female sex steroid hormones. Besides the fact that estrogen stimulates endometrial cell proliferation and progesterone inhibits this proliferation and induces differentiation, there is limited knowledge about precise molecular mechanisms underlying human endometrial biology. The importance of paracrine signaling in endometrial physiology explains why in vitro culture of endometrial cells has been challenging...
November 10, 2017: Differentiation; Research in Biological Diversity
https://www.readbyqxmd.com/read/29145025/coupling-of-on-column-trypsin-digestion-peptide-mapping-and-principal-component-analysis-for-stability-and-biosimilarity-assessment-of-recombinant-human-growth-hormone
#9
Sara M Shatat, Basma M Eltanany, Abeer A Mohamed, Medhat A Al-Ghobashy, Faten A Fathalla, Samah S Abbas
Peptide mapping (PM) is a vital technique in biopharmaceutical industry. The fingerprint obtained helps to qualitatively confirm host stability as well as verify primary structure, purity and integrity of the target protein. Yet, in-solution digestion followed by tandem mass spectrometry is not suitable as a routine quality control test. It is time consuming and requires sophisticated, expensive instruments and highly skilled operators. In an attempt to enhance the fuctionality of PM and extract multi-dimentional data about various critical quality attributes and comparability of biosimilars, coupling of PM generated using immobilized trypsin followed by HPLC-UV to principal component analysis (PCA) is proposed...
November 11, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/29141928/reversible-brain-lesion-following-growth-hormone-replacement-therapy-in-an-adolescent
#10
Adamos Hadjipanayis, Elisavet Efstathiou, Leda Theophilou, George Chrousos
A 12.6-year-old girl presented with a 2-month history of headache, recurrent vomiting and 5 kg weight loss. She had been receiving recombinant human growth hormone (rhGH) replacement therapy at a dose of 0.035 mg/kg for the past 10 months, due to short stature. Investigations before initiating rhGH, including brain MRI, had been normal. Physical examination revealed a nystagmus and a mildly elevated arterial blood pressure. Brain MRI revealed a lesion in the posterior aspect of the medulla oblongata, adjacent to the foramen of Magendie...
November 14, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/29141508/anti-m%C3%A3-llerian-hormone-amh-may-stall-ovarian-cortex-function-through-modulation-of-hormone-receptors-other-than-the-amh-receptor
#11
Laura Detti, Nicole M Fletcher, Ghassan M Saed, Irene Peregrin-Alvarez, Rebecca A Uhlmann
OBJECTIVE: To test whether recombinant anti-Müllerian hormone (AMH) can inhibit ovarian cortex function by modulating the expression of other hormone receptors. MATERIALS AND METHODS: Pilot experimental study with ovarian cortex obtained from 5 patients. Immediately after explant, the ovarian cortex specimens were divided into 5 equal fragments. One fragment was flash-frozen (uncultured) and 4 were incubated for 48 hours at 37°C in a pH-adjusted gamete buffer medium with increasing AMH concentrations of 0, 5, 25, and 50 ng/mL...
January 1, 2017: Reproductive Sciences
https://www.readbyqxmd.com/read/29141371/-effect-of-recombinant-human-growth-hormone-therapy-on-metabolic-parameters-in-patients-with-craniopharyngioma
#12
J F Mao, X Wang, S Y Xiong, J J Zheng, B Q Yu, M Nie, X Y Wu, S T Qi
Objective: To investigate the effects of recombinant human growth hormone (rhGH) on metabolic parameters in patients with craniopharyngioma surgeries. Methods: Totallys 30 patients with craniopharyngioma were included in this retrospective study. They were divided into growth hormone (GH) group and control group according to whether they received rhGH therapy or not. The following parameters, including body mass index (BMI), weight, waist circumstance, transaminase, fasting blood glucose, lipid profile and high-sensitivity C-reactive protein (hsCRP) were compared after rhGH therapy for 4-6 months...
November 14, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/29127753/-intestinal-adaptation-following-gut-resection
#13
Jarmila Křížová, Pavel Trachta, Eva Kotrlíková
Gut resection is followed by wide changes in the gastrointestinal tract. The goal is to increase nutrient, water and mineral absorption in the remnant intestine. These changes are going on for several months. They affect gut mucosa structure, intestine peristaltic activity and enterocytes function. The crucial role is ileum preserving. Ileum has higher adaptation ability comparing to jejunum and inhibits peristaltic function of proximal parts of GIT. A lot of factors involved in intestinal adaptation were identified, hormones, growth factors, regulating peptides, intracellular signalizing cascades, cytokines and tissue factors...
2017: Vnitr̆ní Lékar̆ství
https://www.readbyqxmd.com/read/29103133/recombinant-growth-hormone-therapy-for-prepubertal-children-with-idiopathic-short-stature-in-korea-a-phase-iii-randomized-trial
#14
J Kim, B-K Suh, C W Ko, K-H Lee, C H Shin, J S Hwang, H S Kim, W Y Chung, C J Kim, H-S Han, N Y Kwon, S Y Cho, H-W Yoo, D-K Jin
PURPOSE: Several studies have evaluated the effects of growth hormone (GH) on auxological and biochemical parameters in children with non-GH-deficient, idiopathic short stature (ISS). This study evaluated the efficacy and safety of Growtropin(®)-II (recombinant human GH) in Korean patients with ISS. METHODS: This was a 1-year, open-label, multicenter, phase III randomized trial of Growtropin(®)-II in Korean patients with ISS. In total, 70 prepubertal subjects (39 males, 31 females) between 4 and 12 years of age were included in the study...
November 4, 2017: Journal of Endocrinological Investigation
https://www.readbyqxmd.com/read/29097083/knockdown-of-melatonin-receptor-1-and-induction-of-follicle-stimulating-hormone-on-the-regulation-of-mouse-granulosa-cell-function
#15
Hira Sajjad Talpur, Tesfaye Worku, Zia Ur Rehman, Rahim Dad, Dinesh Bhattarai, Iqra Bano, Farmanullah, Aixin Liang, Changjiu He, Liguo Yang
Melatonin receptor 1 (MT1) performs a critical role in the regulation of the animal reproductive system, particularly in follicular growth, and has a considerable effect on reproductive performance. However, the role that MT1 plays in regulating hormones associated with reproduction remains unclear. This study was designed to examine the physiological role of constitutive MT1 silencing and follicle stimulating hormone (FSH) treatment in reproduction, making use of mouse granulosa cells (mGCs) as a model. To understand the constitutive role of MT1 in ovarian physiology, the RNAi-Ready pSIREN-RETROQ-ZsGreen Vector mediated recombinant pshRNA was used to silence MT1 gene expression...
October 30, 2017: Reproductive Biology
https://www.readbyqxmd.com/read/29096433/integrated-bottom-up-and-top-down-liquid-chromatography-mass-spectrometry-for-characterization-of-recombinant-human-growth-hormone-degradation-products
#16
Yu Annie Wang, Di Wu, Jared R Auclair, Joseph P Salisbury, Richa Sarin, Yang Tang, Nicholas J Mozdzierz, Kartik Shah, Anna Fan Zhang, Shiaw-Lin Wu, Jeffery N Agar, J Christopher Love, Kerry R Love, William S Hancock
With the advent of biosimilars to the U.S. market, it is important to have better analytical tools to ensure product quality from batch to batch. In addition, the recent popularity of using a continuous process for production of biopharmaceuticals, the traditional bottom-up method, alone for product characterization and quality analysis is no longer sufficient. Bottom-up method requires large amounts of material for analysis and is labor-intensive and time-consuming. Additionally, in this analysis, digestion of the protein with enzymes such as trypsin could induce artifacts and modifications which would increase the complexity of the analysis...
November 21, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/29063159/fibroblast-growth-factor-fgf-23-regulates-the-plasma-levels-of-parathyroid-hormone-in-vivo-through-the-fgf-receptor-in-normocalcemia-but-not-in-hypocalcemia
#17
Maria L Mace, Eva Gravesen, Anders Nordholm, Klaus Olgaard, Ewa Lewin
The calcium and phosphate homeostasis is regulated by a complex interplay between parathyroid hormone (PTH), fibroblast growth factor 23 (FGF23), and calcitriol. Experimental studies have demonstrated an inhibitory effect of FG23 on PTH production and secretion; the physiological role of this regulation is however not well understood. Surprisingly, in uremia, concomitantly elevated FGF23 and PTH levels are observed. The parathyroid gland rapidly loses its responsiveness to extracellular calcium in vitro and a functional parathyroid cell line has currently not been established...
October 23, 2017: Calcified Tissue International
https://www.readbyqxmd.com/read/29059727/hemicastration-induced-spermatogenesis-related-dna-methylation-and-gene-expression-changes-in-mice-testis
#18
Yixin Wang, Long Jin, Jideng Ma, Li Chen, Yuhua Fu, Keren Long, Silu Hu, Yang Song, Dazhi Shang, Qianzi Tang, Xun Wang, Xuewei Li, Mingzhou Li
Purpose: Hemicastration is a unilateral orchiectomy to remove an injured testis, which can induce hormonal changes and compensatory hypertrophy of the remaining testis, and may influence spermatogenesis. However, the underlying molecular mechanisms are poorly understood. Here, we investigated the impact of hemicastration on remaining testicular function. Methods: Prepubertal mice (age 24 days) were hemicastrated, and their growth was monitored until they reached physical maturity (age 72 days)...
October 20, 2017: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/29055168/long-term-safety-of-growth-hormone-a-combined-registry-analysis
#19
Kirstine Stochholm, Wieland Kiess
OBJECTIVES: Preliminary data from the French cohort of the Safety and Appropriateness of Growth hormone treatments in Europe (SAGhE) study raised concerns regarding the safety of recombinant human GH, suggesting that GH may increase mortality and incidence of stroke in patients treated during childhood for GH deficiency or short stature. We evaluated published safety data, focusing on mortality, neoplasms, cerebrovascular events and diabetes across a number of large-scale pharmaceutical company GH registries...
October 21, 2017: Clinical Endocrinology
https://www.readbyqxmd.com/read/29051812/patients-perceptions-on-the-usability-of-the-surepal%C3%A2-self-injection-device-for-omnitrope-%C3%A2-a-questionnaire-based-observational-study-conducted-in-paediatric-patients-in-france
#20
Régis Coutant, Clémentine Dupuis, Patricia Pigeon, Phillipe Rebaud
BACKGROUND: A questionnaire-based survey was conducted to evaluate attitudes towards a reusable self-injection system, SurePal™, among paediatric patients with growth disturbances who were prescribed treatment with somatropin (Omnitrope(®)) as part of routine clinical practice. METHODS: This cross-sectional survey was incorporated into the multinational, multi-centre, noninterventional PAtients TReated with Omnitrope(®) (PATRO) Children study. Questions were mainly focused on five areas: the attractiveness of SurePal™; training received; use of the device; opinion of the low-drug wastage system; experience compared with previous devices used (among pretreated patients)...
September 2017: Therapeutic Advances in Endocrinology and Metabolism
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