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https://www.readbyqxmd.com/read/28525353/molecular-genetics-of-growth-hormone-deficient-children-correlation-with-auxology-and-response-to-first-year-of-growth-hormone-therapy
#1
Vaman Khadilkar, Nikhil Phadke, Kavita Khatod, Veena Ekbote, Supriya Phanse Gupte, Ruchi Nadar, Anuradha Khadilkar
BACKGROUND: With the paucity of available literature correlating genetic mutation and response to treatment, we aimed to study the genetic makeup of children with growth hormone (GH) deficiency in Western India and correlate the mutation with auxology and response to GH treatment at end of 1 year. METHODS: Fifty-three (31 boys and 22 girls) children with severe short stature (height for age z-score <-3) and failed GH stimulation test were studied. Those having concomitant thyroid hormone or cortisol deficiencies were appropriately replaced prior to starting GH treatment...
May 18, 2017: Journal of Pediatric Endocrinology & Metabolism: JPEM
https://www.readbyqxmd.com/read/28523891/neonatal-endocrinologic-problems-in-collodion-babies
#2
Ahmet Ozdemir, Sabriye Korkut, Selim Kurtoglu, Nihal Hatipoglu, Tamer Gunes, Mehmet Adnan Ozturk
OBJECTIVES: To identify endocrinologic problems, particularly those concerning growth, in collodion babies (CBs). METHODS: Clinically identified newborn CBs were included in the study group (group 1). Because CBs are generally born premature, small for gestational age (SGA), or both, a control group matched to the study group in terms of gestational age and birthweight (group 2) was also established. Blood specimens were collected from both groups for thyroid function tests and to measure serum growth hormone (GH), insulinlike growth factor 1 (IGF-1) and IGF binding protein-3 (IGFBP-3) levels...
May 2017: Pediatric Dermatology
https://www.readbyqxmd.com/read/28523647/computational-investigation-of-growth-hormone-receptor-trp169arg-heterozygous-mutation-in-a-child-with-short-stature
#3
William Farias Porto, Felipe Albuquerque Marques, Huri Brito Pogue, Maria Teresinha de Oliveira Cardoso, Maria Gabriela Rodrigues do Vale, Állan da Silva Pires, Octavio Luiz Franco, Sérgio Amorim de Alencar, Robert Pogue
Mutations in the growth hormone receptor (GHR) gene can cause disruption of the growth hormone signaling pathway, resulting in growth deficiency due to growth hormone (GH) resistance. Both recessive and apparently dominant mutations have been described in the literature. In order to shed some light on the molecular mechanism of partial growth hormone resistance caused by heterozygous mutations we performed an in-depth in silico analysis of a mutation found in a girl with a previous diagnosis of idiopathic short stature...
May 18, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28523599/differential-effects-of-early-life-nutrient-restriction-in-long-lived-ghr-ko-and-normal-mice
#4
Yimin Fang, Samuel McFadden, Justin Darcy, Cristal M Hill, Joshua A Huber, Steve Verhulst, John J Kopchick, Richard A Miller, Liou Y Sun, Andrzej Bartke
There is increasing evidence that growth hormone (GH) and insulin-like growth factor 1 (IGF-1) signaling (collectively referred to as somatotropic signaling) during development has a profound influence on aging and longevity. Moreover, the absence of GH action was shown to modify responses of adult mice to calorie restriction (CR) and other antiaging interventions. It was therefore of interest to determine whether GH resistance in GH receptor knockout (GHR-KO) mice would modify the effects of mild pre-weaning CR imposed by increasing the number of pups in a litter (the so-called litter crowding)...
May 18, 2017: GeroScience
https://www.readbyqxmd.com/read/28522645/real-life-gh-dosing-patterns-in-children-with-ghd-ts-or-born-sga-a-report-from-the-nordinet%C3%A2-international-outcome-study
#5
Oliver Blankenstein, Marta Snajderova, Joanne C Blair, Effie Pournara, Birgitte Tønnes Pedersen, Isabelle Oliver Petit
OBJECTIVE: To describe real-life dosing patterns in children with growth hormone deficiency (GHD), born small for gestational age (SGA) or with Turner syndrome (TS) receiving growth hormone (GH) and enrolled in the NordiNet® International Outcome Study (IOS; NCT00960128) between 2006 and 2016. DESIGN: This non-interventional, multicentre study included paediatric patients diagnosed with GHD (isolated [IGHD] or multiple pituitary hormone deficiency [MPHD]), born SGA or with TS and treated according to everyday clinical practice from the Czech Republic (IGHD/MPHD/SGA/TS: n=425/61/316/119), France (n=1404/188/970/206), Germany (n=2603/351/1387/411) and the UK (n=259/60/87/35)...
May 18, 2017: European Journal of Endocrinology
https://www.readbyqxmd.com/read/28521865/exaggerated-glucagon-responses-to-hypoglycemia-in-women-with-polycystic-ovary-syndrome
#6
Susan Sam, Priyathama Vellanki, Sudha K Yalamanchi, Richard N Bergman, Andrea Dunaif
CONTEXT: Premenopausal women have blunted counter-regulatory hormone responses (CRR) to hypoglycemia compared to men. Postmenopausal women have CRR similar to men; the premenopausal pattern can be restored by estrogen. However, glucagon and pancreatic polypeptide (PP) responses remain lower in postmenopausal women than in men. Since hyperandrogenemia contributes to the metabolic phenotype of polycystic ovary syndrome (PCOS), we hypothesize that CRR to hypoglycemia especially of glucagon and PP is exaggerated in premenopausal women with PCOS compared to premenopausal control women...
June 2017: Metabolism: Clinical and Experimental
https://www.readbyqxmd.com/read/28516968/preliminary-experience-with-4k-ultra-high-definition-endoscope-analysis-of-pros-and-cons-in-skull-base-surgery
#7
M Rigante, G La Rocca, L Lauretti, G Q D'Alessandris, A Mangiola, C Anile, A Olivi, G Paludetti
During the last two decades endoscopic skull base surgery observed a continuous technical and technological development 3D endoscopy and ultra High Definition (HD) endoscopy have provided great advances in terms of visualisation and spatial resolution. Ultra-high definition (UHD) 4K systems, recently introduced in the clinical practice, will shape next steps forward especially in skull base surgery field. Patients were operated on through transnasal transsphenoidal endoscopic approaches performed using Olympus NBI 4K UHD endoscope with a 4 mm 0° Ultra Telescope, 300 W xenon lamp (CLV-S400) predisposed for narrow band imaging (NBI) technology connected through a camera head to a high-quality control unit (OTV-S400 - VISERA 4K UHD) (Olympus Corporation, Tokyo, Japan)...
June 2017: Acta Otorhinolaryngologica Italica
https://www.readbyqxmd.com/read/28516752/growth-hormone-treatment-and-adverse-events
#8
Yoshikazu Nishi, Toshiaki Tanaka
We compiled the major adverse events included in the Annual Research Reports of the Foundation for Growth Research published in and after 2000. We conducted a review of approximately 32,000 patients treated with growth hormone (GH) who subsequently developed leukemia and who were registered with the Foundation for Growth Research (from 1975 to December 31 1997). We performed a literature review and found that GH therapy was not associated with leukemia onset in patients with no risk factors for leukemia. We also reported the onset of diabetes mellitus (DM), scoliosis, and respiratory problems in patients with Prader-Willi syndrome who were treated with GH...
March 2017: Pediatric Endocrinology Reviews: PER
https://www.readbyqxmd.com/read/28516751/growth-hormone-therapy-and-brain-tumors
#9
Akira Teramoto
As one of the projects of the Adverse Events Study Group of the Foundation for Growth Science in Japan, the literatures on the recurrence and / or regrowth or new formation of brain tumors in patients treated with growth hormone (GH) were reviewed. Since the tumor volume of the sellar lesion can be accurately evaluated only by magnetic resonance imaging (MRI), the related literatures published after 1990 were retrieved by searching under keywords, such as GH, replacement therapy, brain tumor, recurrence, tumor formation, etc...
March 2017: Pediatric Endocrinology Reviews: PER
https://www.readbyqxmd.com/read/28516750/quality-of-life-of-sga-children-with-short-stature-receiving-gh-treatment-in-japan
#10
Ryo Takahashi, Madoka Ogawa, Hisao Osada
The objective of this study was to compare the quality of life (QOL) of small for gestational age (SGA) children with short stature with that of children with normal height, and examine the effects of growth hormone (GH) treatment on the QOL of the SGA children using questionnaires administered to their parents or guardians. The results showed that QOL in daily living of SGA children with short stature was lower than that of normal children based on the perceptions of their parents or guardians. In addition, GH treatment improved the physical domain of QOL of SGA children with short stature...
March 2017: Pediatric Endocrinology Reviews: PER
https://www.readbyqxmd.com/read/28516749/international-comparison-of-adult-height-in-children-with-growth-hormone-deficiency-and-limitations-of-growth-hormone-treatment-in-japan
#11
Toshiaki Tanaka
The approved therapeutic dose of growth hormone (GH) for growth hormone deficiency (GHD) varies depending on the country. Japan has the lowest therapeutic dose globally, with a single dose of 0.175 mg/kg/week. GH treatment for GHD is considered as a replacement therapy and in fact, a dose of 0.175 mg/kg/week is slightly higher than GH secretion in prepubertal healthy children but nearly the same as that of pubertal children. Although the same growth rate as that of healthy children is expected in response to replacement therapy, the catch-up growth observed for the first 1 to 2 years of GH treatment was misinterpreted as an effect of the GH replacement therapy...
March 2017: Pediatric Endocrinology Reviews: PER
https://www.readbyqxmd.com/read/28516748/standardization-of-growth-hormone-and-insulin-like-growth-factor-i-measurements
#12
Noriyuki Katsumata
Measurement of the levels of growth hormone (GH) and its related factor insulin-like growth factor I (IGF-I) is essential for the diagnosis and treatment of GH deficiency (GHD) and conditions related to excess GH such as acromegaly and pituitary gigantism. Measurement of GH levels is also used as an indicator of hypothalamic-pituitary function. Because of the marked variability in GH measurements among kits, the Study Committee for GH and Its Related Factors of The Foundation for Growth Science, Japan standardized GH values measured with various commercially available GH assay kits in Japan...
March 2017: Pediatric Endocrinology Reviews: PER
https://www.readbyqxmd.com/read/28515738/chloroplast-atp-synthase-modulation-of-the-thylakoid-proton-motive-force-implications-for-photosystem-i-and-photosystem-ii-photoprotection
#13
Atsuko Kanazawa, Elisabeth Ostendorf, Kaori Kohzuma, Donghee Hoh, Deserah D Strand, Mio Sato-Cruz, Linda Savage, Jeffrey A Cruz, Nicholas Fisher, John E Froehlich, David M Kramer
In wild type plants, decreasing CO2 lowers the activity of the chloroplast ATP synthase, slowing proton efflux from the thylakoid lumen resulting in buildup of thylakoid proton motive force (pmf). The resulting acidification of the lumen regulates both light harvesting, via the qE mechanism, and photosynthetic electron transfer through the cytochrome b6f complex. Here, we show that the cfq mutant of Arabidopsis, harboring single point mutation in its γ-subunit of the chloroplast ATP synthase, increases the specific activity of the ATP synthase and disables its down-regulation under low CO2...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28514721/impact-of-gh-administration-on-athletic-performance-in-healthy-young-adults-a-systematic-review-and-meta-analysis-of-placebo-controlled-trials
#14
REVIEW
Kasper Hermansen, Mads Bengtsen, Michael Kjær, Peter Vestergaard, Jens Otto Lunde Jørgensen
OBJECTIVE: Illicit use of growth hormone (GH) as a performance-enhancing drug among athletes is prevalent, although the evidence of such effects in healthy, young subjects is sparse. We therefore performed a meta-analysis of published studies on the effect of GH administration on body composition, substrate metabolism, and athletic performance in healthy, young subjects. DESIGN: The English-language based databases PubMed, EMBASE, and Cochrane Central Register of Controlled Trials were searched, and eligible articles were reviewed in accordance with the PRISMA guidelines...
May 10, 2017: Growth Hormone & IGF Research
https://www.readbyqxmd.com/read/28514164/the-non-bulky-dna-lesions-spiroiminodihydantoin-and-5-guanidinohydantoin-significantly-block-human-rna-polymerase-ii-elongation-in-vitro
#15
Marina Kolbanovskiy, Moinuddin A Chowdhury, Aditi Nadkarni, Suse Broyde, Nicholas E Geacintov, David A Scicchitano, Vladimir Shafirovich
The most common, oxidatively generated lesion in cellular DNA is 8-oxo-7,8-dihydroguanine, which can be oxidized further to yield highly mutagenic spiroiminodihydantoin (Sp) and 5-guanidinohydantoin (Gh) in DNA. In human cell-free extracts, both lesions can be excised by base excision repair and global genomic nucleotide excision repair. However, it is not known if these lesions can be removed by transcription-coupled DNA repair (TCR), a pathway that clears lesions from DNA that impede RNA synthesis. To determine if Sp or Gh impede transcription, which could make them viable substrates for TCR, either an Sp or a Gh lesion was positioned on the transcribed strand of DNA under the control of a promoter that supports transcription by human RNA polymerase II...
May 17, 2017: Biochemistry
https://www.readbyqxmd.com/read/28513740/l-ornithine-stimulates-growth-hormone-release-in-a-manner-dependent-on-the-ghrelin-system
#16
Yee Yin Ho, Junya Nakato, Takafumi Mizushige, Ryuhei Kanamoto, Mamoru Tanida, Saori Akiduki, Kousaku Ohinata
We found that intraduodenal administration of l-ornithine (l-Orn) stimulates growth hormone (GH) secretion in Wistar rats, and then investigated its mechanism. GH-releasing activity after intraduodenal administration of l-Orn was blocked by [d-Lys(3)]-GHRP-6, an antagonist of the ghrelin receptor; however, l-Orn (100 μM) has no affinity for the ghrelin receptor, suggesting that the GH-releasing activity of l-Orn is mediated via ghrelin release and activation of the ghrelin receptor. Intraduodenally administered l-Orn increased ghrelin mRNA expression in the duodenum but not in the stomach or hypothalamus...
May 17, 2017: Food & Function
https://www.readbyqxmd.com/read/28511669/fasting-levels-of-growth-hormone-are-associated-with-carotid-intima-media-thickness-but-are-not-affected-by-fluvastatin-treatment
#17
Erik Hallengren, Peter Almgren, Maria Rosvall, Gerd Östling, Margaretha Persson, Andreas Bergmann, Joachim Struck, Gunnar Engström, Bo Hedblad, Olle Melander
BACKGROUND: Growth hormone (GH) has been linked to cardiovascular disease but the exact mechanism of this association is still unclear. We here test if the fasting levels of GH are cross-sectionally associated with carotid intima media thickness (IMT) and whether treatment with fluvastatin affects the fasting level of GH. METHODS: We examined the association between GH and IMT in 4425 individuals (aged 46-68 years) included in the baseline examination (1991-1994) of the Malmö Diet and Cancer cardiovascular cohort (MDC-CC)...
May 16, 2017: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/28511458/maternal-and-cord-blood-plasma-seng-and-tgf-%C3%AE-1-in-patients-with-hypertensive-disorders-of-pregnancy-a-pilot-study-in-a-south-indian-population
#18
Vickneshwaran Vinayagam, Zachariah Bobby, Syed Habeebullah, Latha Chaturvedula, Shruthi K Bharadwaj
INTRODUCTION: Hypertensive Disorders of Pregnancy (HDP) are one of the most widespread complications of pregnancy that affects both mother and foetus. It has been observed that in Preeclampsia, the release of soluble angiogenic factors from the ischemic placenta into maternal plasma plays a crucial role in the pathogenesis. AIM: To assess the plasma Soluble Endoglin (sEng) and Transforming Growth Factor (TGF-β1) levels in various types of HDP and to correlate the levels of these markers with the pregnancy outcome...
March 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28511077/clinical-and-laboratory-parameters-predicting-a-requirement-for-the-reevaluation-of-growth-hormone-status-during-growth-hormone-treatment-retesting-early-in-the-course-of-gh-treatment
#19
Dogus Vuralli, E Nazli Gonc, Z Alev Ozon, Ayfer Alikasifoglu, Nurgun Kandemir
OBJECTIVE: We aimed to define the predictive criteria, in the form of specific clinical, hormonal and radiological parameters, for children with growth hormone deficiency (GHD) who may benefit from the reevaluation of GH status early in the course of growth hormone (GH) treatment. DESIGN AND METHODS: Two hundred sixty-five children with growth hormone deficiency were retested by GH stimulation at the end of the first year of GH treatment. The initial clinical and laboratory characteristics of those with a normal (GH≥10ng/ml) response and those with a subnormal (GH<10ng/ml) response were compared to predict a normal GH status during reassessment...
May 10, 2017: Growth Hormone & IGF Research
https://www.readbyqxmd.com/read/28510488/distinct-effects-of-growth-hormone-and-glutamine-on-activation-of-intestinal-stem-cells
#20
Yun Chen, Sheng-Hong Tseng, Chao-Ling Yao, Chuan Li, Ya-Hui Tsai
BACKGROUND: For patients with short bowel syndrome under parenteral nutrition support, growth hormone (GH) and glutamine (GLN) have been found to help the growth of intestinal mucosa. In this research, we studied the effects of GH and GLN on intestinal stem cells (ISCs). METHODS: The in vitro and in vivo effects of GH and/or GLN on ISCs were evaluated by observing the ability of ISCs to form organoids in a Matrigel culture system. The expression levels of stemness and differentiation markers in ISCs and organoids were assessed using quantitative real-time polymerase chain reaction, immunofluorescence assay, and immunohistochemistry staining...
May 1, 2017: JPEN. Journal of Parenteral and Enteral Nutrition
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