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Growth hormone

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https://www.readbyqxmd.com/read/28088007/impairment-of-host-liver-repopulation-by-transplanted-hepatocytes-in-aged-rats-and-the-release-by-short-term-growth-hormone-treatment
#1
Peggy Stock, Maximilian Bielohuby, Martin S Staege, Mei-Ju Hsu, Martin Bidlingmaier, Bruno Christ
Hepatocyte transplantation is an alternative to whole liver transplantation. Yet, efficient liver repopulation by transplanted hepatocytes is low in livers of old animals. This restraint might be because of the poor proliferative capacity of aged donor hepatocytes or the regenerative impairment of the recipient livers. The age-dependent liver repopulation by transplanted wild-type hepatocytes was investigated in juvenile and senescent rats deficient in dipeptidyl-peptidase IV. Repopulation was quantified by flow cytometry and histochemical estimation of dipeptidyl-peptidase IV enzyme activity of donor cells in the negative host liver...
January 11, 2017: American Journal of Pathology
https://www.readbyqxmd.com/read/28087977/fibroblast-growth-factor-23-fgf23-in-untreated-nephrotic-syndrome
#2
Ashok Kumar Yadav, Raja Ramachandran, Abhinav Aggarwal, Vinod Kumar, Krishan Lal Gupta, Vivekanand Jha
AIM: Despite its importance in bone and cardiovascular disease in subjects with kidney disease, there is no data on fibroblast growth factor 23 (FGF23) perturbations in nephrotic syndrome. We evaluated FGF23 and markers of mineral bone metabolism in subjects with untreated NS. METHODS: In this cross-sectional study, we measured circulating levels of FGF23, 25-hydroxy vitamin D [25(OH)D], 1,25 di-hydroxy vitamin D [1,25(OH)2 D], serum albumin, serum calcium, phosphorus, creatinine and intact parathyroid hormone (iPTH) in 101 patients with adults onset NS and 40 healthy controls...
January 14, 2017: Nephrology
https://www.readbyqxmd.com/read/28087877/erratum
#3
Heather Nyman, Karly Pippitt, Alisyn Hansen, Karen Gunning
The article incorrectly stated: "Elevations of both fibroblast growth factor 23 (FGF23) and parathyroid hormone (PTH) lead to hyperphosphatemia and hypocalcemia because of decreased urinary excretion of phosphorus." In fact, FGF23 normally acts to lower blood phosphate levels. Furthermore, an elevated phosphorus level causes an increase in serum calcium levels and not hypocalcemia. This information has been corrected in the online version of the article.
November 2016: Journal of Family Practice
https://www.readbyqxmd.com/read/28081535/efficacy-and-safety-of-continuous-subcutaneous-infusion-of-recombinant-human-gonadotropins-for-congenital-micropenis-during-early-infancy%C3%A2
#4
Athanasia Stoupa, Dinane Samara-Boustani, Isabelle Flechtner, Graziella Pinto, Isabelle Jourdon, Laura González-Briceño, Maud Bidet, Kathleen Laborde, Didier Chevenne, Anne-Elodie Millischer, Henri Lottmann, Thomas Blanc, Yves Aigrain, Michel Polak, Jacques Beltrand
BACKGROUND: Early postnatal administration of gonadotropins to infants with congenital hypogonadotropic hypogonadism (CHH) can mimic minipuberty, thereby increasing penile growth. We assessed the effects of gonadotropin infusion on stretched penile length (SPL) and hormone levels in infants with congenital micropenis. METHODS: Single-center study including 6 males with micropenis in case of isolated CHH (n = 4), panhypopituitarism (n = 1), and partial androgen insensitivity syndrome (PAIS; n = 1)...
January 12, 2017: Hormone Research in Pædiatrics
https://www.readbyqxmd.com/read/28081213/transcriptome-profiling-to-understand-the-effect-of-citrus-rootstocks-on-the-growth-of-shatangju-mandarin
#5
Xiang-Yu Liu, Juan Li, Meng-Meng Liu, Qing Yao, Jie-Zhong Chen
To obtain insight into potential mechanisms underlying the influence of rootstock on scion growth, we performed a comparative analysis of 'Shatangju' mandarin grafted onto 5 rootstocks: Fragrant orange (Citrus junons Sieb. ex. Tanaka), Red tangerine (Citrus reticulata Blanco), 'Shatangju' mandarin (Citrus reticulata Blanco), Rough lemon (Citrus jambhiri Lush) and Canton lemon (Citrus limonia Osbeck). The tree size of 'Shatangju' mandarin grafted onto Canton lemon and Rough lemon were the largest, followed by self-rooted rootstock trees, and the lowest tree sizes correspond to ones grafted on Red tangerine and Fragrant orange rootstocks...
2017: PloS One
https://www.readbyqxmd.com/read/28079813/surgical-treatment-for-male-prolactinoma-a-retrospective-study-of-184-cases
#6
Yi-Jun Song, Mei-Ting Chen, Wei Lian, Bing Xing, Yong Yao, Ming Feng, Ren-Zhi Wang
A total of 184 cases of surgically treated male prolactinoma were analyzed retrospectively to summarize the outcome of this surgical intervention. We analyzed the general characteristics, clinical manifestations, hormone levels, imaging features, preoperative treatments, surgical outcomes, pathology results, and follow-up records for all included patients. The most common clinical manifestations included sexual dysfunction (47.4%), headache (55.9%), and visual disturbance (46.7%). Serum prolactin levels ranged from 150 to 204,952 ng/mL...
January 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28078804/a-low-protein-diet-induces-body-weight-loss-and-browning-of-subcutaneous-white-adipose-tissue-through-enhanced-expression-of-hepatic-fibroblast-growth-factor-21-fgf21
#7
Albert Pérez-Martí, Maite Garcia-Guasch, Anna Tresserra-Rimbau, Alexandra Carrilho-Do-Rosário, Ramon Estruch, Jordi Salas-Salvadó, Miguel Ángel Martínez-González, Rosa Lamuela-Raventós, Pedro F Marrero, Diego Haro, Joana Relat
SCOPE: Fibroblast growth factor 21 (FGF21) is considered a promising therapeutic candidate for the treatment of obesity. Since FGF21 production is regulated by various nutritional factors, we analyze the impact of low protein intake on circulating levels of this growth hormone in mice and in a sub cohort of the PREDIMED (Prevención con Dieta Mediterránea) trial. We also describe the role of hepatic FGF21 in metabolic adaptation to a low-protein diet (LPD). METHODS AND RESULTS: We fed control and liver-specific Fgf21 knockout (LFgf21KO) mice a LPD...
January 11, 2017: Molecular Nutrition & Food Research
https://www.readbyqxmd.com/read/28078498/perinatal-exposure-to-bisphenol-a-or-diethylstilbestrol-increases-the-susceptibility-to-develop-mammary-gland-lesions-after-estrogen-replacement-therapy-in-middle-aged-rats
#8
Ayelen L Gomez, Melisa B Delconte, Gabriela A Altamirano, Lucia Vigezzi, Veronica L Bosquiazzo, Luís F Barbisan, Jorge G Ramos, Enrique H Luque, Mónica Muñoz-de-Toro, Laura Kass
The development of the mammary gland is a hormone-regulated event. Several factors can dysregulate its growth and make the gland more susceptible to cellular transformation. Among these factors, perinatal exposure to xenoestrogens and hormone replacement therapy has been associated with increased risk of developing breast cancer. Here, we assessed the effects induced by estrogen replacement therapy (ERT) in ovariectomized (OVX) middle-aged rats and whether perinatal exposure to diethylstilbestrol (DES) or bisphenol A (BPA) modified these effects in the mammary gland...
January 11, 2017: Hormones & Cancer
https://www.readbyqxmd.com/read/28078431/degradation-of-di-2-ethylhexyl-phthalate-by-a-novel-gordonia-alkanivorans-strain-yc-rl2
#9
Ruth Nahurira, Lei Ren, Jinlong Song, Yang Jia, Junhuan Wang, Shuanghu Fan, Haisheng Wang, Yanchun Yan
One bacterial strain, YC-RL2, isolated from petroleum-contaminated soil, could utilize environmental hormone Di(2-Ethylhexyl) phthalate (DEHP) as a sole carbon source for growth. Strain YC-RL2 was identified as Gordonia alkanivorans by 16S rRNA gene analysis and Biolog tests. The effects of environmental factors which might affect the degrading process were optimized at 30 °C and pH 8.0. Strain YC-RL2 showed superior halotolerance and could tolerate up to 0-5% NaCl in trace element medium supplemented with DEHP, although the DEHP degradation rates slowed as NaCl concentration increased...
January 12, 2017: Current Microbiology
https://www.readbyqxmd.com/read/28077497/bone-material-strength-index-as-measured-by-impact-microindentation-is-altered-in-patients-with-acromegaly
#10
Frank Malgo, Neveen Hamdy, Ton J Rabelink, H Kroon, Kim M J A Claessen, Alberto M Pereira, N R Biermasz, Natasha M Appelman-Dijkstra
OBJECTIVE: Acromegaly is a rare disease caused by excess growth hormone (GH) production by a pituitary adenoma. The skeletal complications of GH and IGF-1 excess include increased bone turnover, increased cortical bone mass and deteriorated microarchitecture of trabecular bone, associated with a high risk of vertebral fractures in the presence of relatively normal Bone Mineral Density (BMD). We aimed to evaluate tissue-level properties of bone using impact microindentation (IMI) in well-controlled patients with acromegaly aged ≥18 years compared to 44 controls from the outpatient clinic of the Centre for Bone Quality...
January 11, 2017: European Journal of Endocrinology
https://www.readbyqxmd.com/read/28077457/systems-biology-derived-biomarkers-to-predict-progression-of-renal-function-decline-in-type-2-diabetes-mellitus
#11
Gert Mayer, Hiddo J L Heerspink, Constantin Aschauer, Andreas Heinzel, Georg Heinze, Alexander Kainz, Judith Sunzenauer, Paul Perco, Dick de Zeeuw, Peter Rossing, Michelle Pena, Rainer Oberbauer
OBJECTIVE: Chronic kidney disease (CKD) in diabetes has a complex molecular and likely multifaceted pathophysiology. We aimed to validate a panel of biomarkers identified using a systems biology approach to predict the individual decline of estimated glomerular filtration rate (eGFR) in a large group of patients with type 2 diabetes mellitus and CKD at various stages. RESEARCH DESIGN AND METHODS: We used publicly available "omics" data to develop a molecular process model of CKD in diabetes and identified a representative parsimonious set of nine molecular biomarkers: chitinase 3-like protein 1, growth hormone 1, hepatocyte growth factor, matrix metalloproteinase (MMP) 2, MMP7, MMP8, MMP13, tyrosine kinase, and tumor necrosis factor receptor-1...
January 11, 2017: Diabetes Care
https://www.readbyqxmd.com/read/28077337/stress-hormone-epinephrine-adrenaline-and-norepinephrine-noradrenaline-effects-on-the-anaerobic-bacteria
#12
REVIEW
Lyudmila Boyanova
Microbial endocrinology is a relatively new research area that already encompasses the anaerobes. Stress hormones, epinephrine and norepinephrine, can affect the growth of anaerobic bacteria such as Fusobacterium nucleatum, Prevotella spp., Porhyromonas spp., Tanerella forsythia and Propionibacterium acnes and can increase virulence gene expression, iron acquisition and many virulence factors of some anaerobic species such as Clostridium perfringens, Porphyromonas gingivalis and Brachyspira pilosicoli. Epinephrine and norepinephrine effects can lead to a growth increase or decrease, or no effect on the growth of the anaerobes...
January 8, 2017: Anaerobe
https://www.readbyqxmd.com/read/28076528/the-brief-life-of-norplant%C3%A2-in-brazil-controversies-and-reassemblages-between-science-society-and-state
#13
Ana Cristina de Lima Pimentel, Cláudia Bonan Jannotti, Paula Gaudenzi, Luiz Antonio da Silva Teixeira
Norplant® is the brand name of the world's first registered subdermal hormonal contraceptive implant, developed by the laboratories of the Population Council, an international organisation working in the area of fertility and population growth. The article revisits the trajectory of this contraceptive in Brazil from its arrival through clinical trials to its eventual ban in 1986 by the Brazilian regulatory agency responsible for approving medications at the time. Its circulation generated controversies related to research practices, side effects and political uses of the drug as a birth control method...
January 2017: Ciência & Saúde Coletiva
https://www.readbyqxmd.com/read/28076448/igf-1-induces-ghrh-neuronal-axon-elongation-during-early-postnatal-life-in-mice
#14
Lyvianne Decourtye, Erik Mire, Maud Clemessy, Victor Heurtier, Tatiana Ledent, Iain C Robinson, Patrice Mollard, Jacques Epelbaum, Michael J Meaney, Sonia Garel, Yves Le Bouc, Laurent Kappeler
Nutrition during the perinatal period programs body growth. Growth hormone (GH) secretion from the pituitary regulates body growth and is controlled by Growth Hormone Releasing Hormone (GHRH) neurons located in the arcuate nucleus of the hypothalamus. We observed that dietary restriction during the early postnatal period (i.e. lactation) in mice influences postnatal growth by permanently altering the development of the somatotropic axis in the pituitary gland. This alteration may be due to a lack of GHRH signaling during this critical developmental period...
2017: PloS One
https://www.readbyqxmd.com/read/28076366/plum-fruit-development-occurs-via-gibberellin-sensitive-and-insensitive-della-repressors
#15
Islam El-Sharkawy, Sherif Sherif, Mahboob Abdulla, Subramanian Jayasankar
Fruit growth depends on highly coordinated hormonal activities. The phytohormone gibberellin (GA) promotes growth by triggering degradation of the growth-repressing DELLA proteins; however, the extent to which such proteins contribute to GA-mediated fruit development remains to be clarified. Three new plum genes encoding DELLA proteins, PslGAI, PslRGL and PslRGA were isolated and functionally characterized. Analysis of expression profile during fruit development suggested that PslDELLA are transcriptionally regulated during flower and fruit ontogeny with potential positive regulation by GA and ethylene, depending on organ and developmental stage...
2017: PloS One
https://www.readbyqxmd.com/read/28074850/juvenile-hormone-biosynthesis-in-adult-blattella-germanica-requires-nuclear-receptors-seven-up-and-ftz-f1
#16
Ferran Borras-Castells, Claudia Nieva, José L Maestro, Oscar Maestro, Xavier Belles, David Martín
In insects, the transition from juvenile development to the adult stage is controlled by juvenile hormone (JH) synthesized from the corpora allata (CA) glands. Whereas a JH-free period during the last juvenile instar triggers metamorphosis and the end of the growth period, the reappearance of this hormone after the imaginal molt marks the onset of reproductive adulthood. Despite the importance of such transition, the regulatory mechanism that controls it remains mostly unknown. Here, using the hemimetabolous insect Blattella germanica, we show that nuclear hormone receptors Seven-up-B (BgSvp-B) and Fushi tarazu-factor 1 (BgFTZ-F1) have essential roles in the tissue- and stage-specific activation of adult CA JH-biosynthetic activity...
January 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28074634/arf2-coordinates-with-plethoras-and-pins-to-orchestrate-aba-mediated-root-meristem-activity-in-arabidopsis%C3%A2
#17
Sujittra Promchuea, Yujuan Zhu, Zhizhong Chen, Jing Zhang, Zhizhong Gong
Multiple hormones, including abscisic acid (ABA) and auxin, regulate cell division and differentiation of Arabidopsis root meristems. AUXIN RESPONSE FACTOR 2 (ARF2) functions as a negative regulator of ABA responses, as seed germination and primary root growth of arf2 mutants are hypersensitive to ABA. In this study, we found that ABA treatment reduced the expression levels of the PIN-FORMEDs (PIN) auxin efflux carriers, PIN1, PIN3, PIN4, and PIN7, to a greater extent in the root meristems of arf2-101 mutant than in the wild type...
January 2017: Journal of Integrative Plant Biology
https://www.readbyqxmd.com/read/28074537/neuroblastoma-causes-alterations-of-the-intestinal-microbiome-gut-hormones-inflammatory-cytokines-and-bile-acid-composition
#18
Christoph Castellani, Georg Singer, Margarita Kaiser, Thomas Kaiser, Jianfeng Huang, Daniela Sperl, Karl Kashofer, Guenter Fauler, Barbara Guertl-Lackner, Gerald Höfler, Holger Till
OBJECTIVE: To assess the effect of neuroblastoma (NB) on the intestinal microbiome, metabolism, and inflammatory parameters in a murine model. MATERIALS AND METHODS: Athymic Hsd:Fox1nu mice received subperitoneal implantation of human NB cells (MHH-NB11) (tumor group, TG) or culture medium (sham group). Following 10 weeks of tumor growth, all animals were sacrificed to collect total white adipose tissue (WAT). Luminex assays were performed for gut hormone and inflammation marker analysis...
January 11, 2017: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/28073935/brain-structure-and-function-associated-with-younger-adults-in-growth-hormone-receptor-deficient-humans
#19
Kaoru Nashiro, Jaime Guevara-Aguirre, Meredith N Braskie, George W Hafzalla, Rico Velasco, Priya Balasubramian, Min Wei, Paul M Thompson, Mara Mather, Marvin D Nelson, Alexandra Guevara, Enrique Teran, Valter D Longo
: Growth hormone receptor deficiency (GHRD) results in short stature, enhanced insulin sensitivity, and low circulating levels of insulin and insulin-like growth factor 1 (IGF-1). Previous studies in mice and humans suggested that GHRD has protective effects against age-related diseases, including cancer and diabetes. Whereas GHRD mice show improved age-dependent cognitive performance, the effect of GHRD on human cognition remains unknown. Using magnetic resonance imaging (MRI), we compared brain structure, function, and connectivity between 13 people with GHRD and 12 unaffected relatives...
January 10, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28073129/alternative-treatment-strategies-in-women-poorly-tolerating-moderate-doses-of-bromocriptine
#20
Robert Krysiak, Witold Szkróbka, Bogusław Okopień
Background: Metformin as well as dopaminergic agents exert a beneficial effect on glucose and lipid metabolism, often impaired in patients with hyperprolactinemia. Objective: The aim of this study was to compare metabolic- and prolactin-lowering effects of low-dose bromocriptine/metformin combination therapy and cabergoline in patients with elevated prolactin levels. Methods: The study included 27 women with hyperprolactinemia and impaired glucose tolerance who were treated with moderate doses of bromocriptine but experienced adverse effects of this treatment...
January 10, 2017: Experimental and Clinical Endocrinology & Diabetes
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