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https://www.readbyqxmd.com/read/28213203/ghrelin-s-control-of-food-reward-and-body-weight-in-the-lateral-hypothalamic-area-is-sexually-dimorphic
#1
Lorena López-Ferreras, Jennifer E Richard, Rozita H Anderberg, Fredrik H Nilsson, Kajsa Olandersson, Scott E Kanoski, Karolina P Skibicka
Ghrelin is a stomach-produced hormone that stimulates ingestive behavior and increases motivated behavior to obtain palatable foods. Ghrelin receptors (growth hormone secretagogue receptors; Ghsr) are expressed in the lateral hypothalamic area (LHA), and LHA-targeted ghrelin application increases ingestive behavior in male rodents. However, the effects of LHA ghrelin signaling in females are unexplored. Here we investigated whether LHA ghrelin signaling is necessary and sufficient for control of ingestive and motivated behavior for food in male and female rats...
February 14, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/28211028/short-term-supra-physiological-rhgh-administration-induces-transient-dna-damage-in-peripheral-lymphocytes-of-healthy-women
#2
C Fantini, P Sgrò, M Pittaluga, A de Perini, I Dimauro, A Sartorio, D Caporossi, L Di Luigi
PURPOSE: While a good safety for recombinant human growth hormone (rhGH) therapy at replacement doses is recognized, a possible link between high concentration of the GH-IGF-I axis hormones and side negative effect has been reported. The aim of this pilot study was to assess whether a short-term exposure to supra-physiological doses of rhGH may affect DNA integrity in human lymphocytes (PBL). METHODS: Eighteen healthy Caucasian female (24.2 ± 3.5 years) were randomly included in a Control (n = 9) and rhGH administration group (n = 9, 3-week treatment)...
February 16, 2017: Journal of Endocrinological Investigation
https://www.readbyqxmd.com/read/28208663/endoplasmic-reticulum-er-stress-and-endocrine-disorders
#3
REVIEW
Daisuke Ariyasu, Hiderou Yoshida, Yukihiro Hasegawa
The endoplasmic reticulum (ER) is the organelle where secretory and membrane proteins are synthesized and folded. Unfolded proteins that are retained within the ER can cause ER stress. Eukaryotic cells have a defense system called the "unfolded protein response" (UPR), which protects cells from ER stress. Cells undergo apoptosis when ER stress exceeds the capacity of the UPR, which has been revealed to cause human diseases. Although neurodegenerative diseases are well-known ER stress-related diseases, it has been discovered that endocrine diseases are also related to ER stress...
February 11, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28205459/effects-of-an-antagonistic-analog-of-growth-hormone-releasing-hormone-on-endometriosis-in-a-mouse-model-and-in-vitro
#4
Frank Köster, Li Jin, Yuanming Shen, Andrew V Schally, Ren-Zhi Cai, Norman L Block, Daniela Hornung, Gabriele Marschner, Achim Rody, Jörg B Engel, Dominique Finas
Endometriosis is a benign gynecologic disorder causing dysmenorrhea, pelvic pain, and subfertility. Receptors for the growth hormone-releasing hormone (GHRH) were found in endometriotic tissues. Antagonists of GHRH have been used to inhibit the growth of endometriotic endometrial stromal cells. In this study, the GHRH receptor splice variant (SV) 1 was detected in human endometrial tissue samples by Western blots and quantitative reverse transcription polymerase chain reaction (qRT-PCR). The highest messenger RNA (mRNA) and protein levels of SV1 were found in eutopic endometrium from patients with endometriosis compared to ectopic endometriotic tissues and endometrium from normal patients...
January 1, 2017: Reproductive Sciences
https://www.readbyqxmd.com/read/28205281/growth-hormone-modulates-in-vitro-endothelial-cell-migration-and-formation-of-capillary-like-structures
#5
Cícero Fagner Messias de Lima, Maria Danielma Dos Santos Reis, Fernando Wagner da Silva Ramos, Silvana Ayres-Martins, Salete Smaniotto
The generation of new blood vessels is a complex process mediated by a variety of growth factors, and the growth hormone (GH) has been shown to act as a proangiogenic factor. In fact, human GH deficiency or excess are associated with endothelial dysfunction. Moreover, mouse models have revealed the action of GH in both tissue repair and in the microvascular circulation of normal tissues. In this study, we investigated the in vitro effects of GH on endothelial cells. Using a murine endothelioma cell line (tEnd...
February 16, 2017: Cell Biology International
https://www.readbyqxmd.com/read/28204905/transcriptome-assembly-and-identification-of-genes-and-snps-associated-with-growth-traits-in-largemouth-bass-micropterus-salmoides
#6
Shengjie Li, Hao Liu, Junjie Bai, Xinping Zhu
Growth is one of the most crucial economic traits of all aquaculture species, but the molecular mechanisms involved in growth of largemouth bass (Micropterus salmoides) are poorly understood. The objective of this study was to screen growth-related genes of M. salmoides by RNA sequencing and identify growth-related single-nucleotide polymorphism (SNP) markers through a growth association study. The muscle transcriptomes of fast- and slow-growing largemouth bass were obtained using the RNA-Seq technique. A total of 54,058,178 and 54,742,444 qualified Illumina read pairs were obtained for the fast-growing and slow-growing groups, respectively, giving rise to 4,865,236,020 and 4,926,819,960 total clean bases, respectively...
February 15, 2017: Genetica
https://www.readbyqxmd.com/read/28203372/diagnostic-challenges-and-management-of-a-patient-with-acromegaly-due-to-ectopic-growth-hormone-releasing-hormone-secretion-from-a-bronchial-carcinoid-tumour
#7
Nikolaos Kyriakakis, Jacqueline Trouillas, Mary N Dang, Julie Lynch, Paul Belchetz, Márta Korbonits, Robert D Murray
: A male patient presented at the age of 30 with classic clinical features of acromegaly and was found to have elevated growth hormone levels, not suppressing during an oral glucose tolerance test. His acromegaly was originally considered to be of pituitary origin, based on a CT scan, which was interpreted as showing a pituitary macroadenoma. Despite two trans-sphenoidal surgeries, cranial radiotherapy and periods of treatment with bromocriptine and octreotide, his acromegaly remained active clinically and biochemically...
2017: Endocrinology, Diabetes & Metabolism Case Reports
https://www.readbyqxmd.com/read/28203146/insulin-like-growth-factor-1-at-the-crossroads-of-brain-development-and-aging
#8
REVIEW
Sarah Wrigley, Donia Arafa, Daniela Tropea
Insulin-like growth factor 1 (IGF1) is a polypeptide hormone structurally similar to insulin. It is central to the somatotropic axis, acting downstream of growth hormone (GH). It activates both the mitogen-activated protein (MAP) kinase and PI3K signaling pathways, acting in almost every tissue in the body to promote tissue growth and maturation through upregulation of anabolic processes. Overall GH and IGF1 signaling falls with age, suggesting that it is this reduced IGF1 activity that leads to age-related changes in organisms...
2017: Frontiers in Cellular Neuroscience
https://www.readbyqxmd.com/read/28202165/ghetting-to-know-adpkd-proliferative-signaling-stat
#9
Ching-Hsien Chen, Robert H Weiss
Due to their common pathogenesis and parallel proliferative signaling pathways, the cystic diseases have been recently studied in the context of cancer biology. The present study continues this paradigm by identifying signal transducer and activator of transcription (STAT5) and growth hormone (GH) as potentially modifiable pathways in polycystic kidney disease. GH, which is a potent activator of STAT5, has the additional possibility of being a biomarker, as well as providing a potential mechanism of action of somatostatin analogs in clinical trials...
March 2017: Kidney International
https://www.readbyqxmd.com/read/28201598/a-randomized-phase-2-study-of-long-acting-transcon-growth-hormone-vs-daily-gh-in-childhood-gh-deficiency
#10
Pierre Chatelain, Oleg Malievsky, Klaudziya Radziuk, Ganna Senatorova, Magdy O Abdou, Elpis Vlachopapadopolou, Yulia Skorodok, Valentina Peterkova, Jonathan A Leff, Michael Beckert
No abstract text is available yet for this article.
February 14, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28196799/a-phase-2-trial-of-long-acting-transcon-growth-hormone-in-adult-gh-deficiency
#11
Charlotte Höybye, Andreas F H Pfeiffer, Diego Ferone, Jens S Christiansen, David Gilfoyle, Eva Dam Christoffersen, Eva Mortensen, Jonathan A Leff, Michael Beckert
TransCon growth hormone is a sustained release human growth hormone prodrug in development in which unmodified growth hormone is transiently linked to a carrier molecule. It is intended as an alternative to daily growth hormone in the treatment of growth hormone deficiency. This was a multi-center, randomized, open-label, active-controlled trial designed to compare the safety (including tolerability and immunogenicity), pharmacokinetics, and pharmacodynamics of three doses of weekly TransCon GH to daily growth hormone (Omnitrope)...
February 14, 2017: Endocrine Connections
https://www.readbyqxmd.com/read/28194444/adipocyte-jak2-mediates-growth-hormone-induced-hepatic-insulin-resistance
#12
Kevin C Corbit, João Paulo G Camporez, Jennifer L Tran, Camella G Wilson, Dylan A Lowe, Sarah M Nordstrom, Kirthana Ganeshan, Rachel J Perry, Gerald I Shulman, Michael J Jurczak, Ethan J Weiss
For nearly 100 years, growth hormone (GH) has been known to affect insulin sensitivity and risk of diabetes. However, the tissue governing the effects of GH signaling on insulin and glucose homeostasis remains unknown. Excess GH reduces fat mass and insulin sensitivity. Conversely, GH insensitivity (GHI) is associated with increased adiposity, augmented insulin sensitivity, and protection from diabetes. Here, we induce adipocyte-specific GHI through conditional deletion of Jak2 (JAK2A), an obligate transducer of GH signaling...
February 9, 2017: JCI Insight
https://www.readbyqxmd.com/read/28193628/management-of-endocrine-disease-neuroendocrine-surveillance-and-management-of-neurosurgical-patients-non-pituitary
#13
Aoife Garrahy, Mark Sherlock, Chris J Thompson
Advances in the management of traumatic brain injury, subarachnoid haemorrhage and intracranial tumours have led to improved survival rates and an increased focus on quality of life of survivors. Endocrine sequelae of the acute brain insult and subsequent neurosurgery, peri-operative fluid administration and/or cranial irradiation are now well described. Unrecognized acute hypopituitarism, particularly ACTH/cortisol deficiency and diabetes insipidus, can be life-threatening. While hypopituitarism may be transient, up to 30% of survivors of TBI have chronic hypopituitarism, which can diminish quality of life and hamper rehabilitation...
February 13, 2017: European Journal of Endocrinology
https://www.readbyqxmd.com/read/28193499/growth-hormone-releasing-hormone-ghrh-promotes-metastatic-phenotypes-through-egfr-her2-transactivation-in-prostate-cancer-cells
#14
Laura Muñoz-Moreno, Ana M Bajo, Juan C Prieto, María J Carmena
The involvement of growth hormone-releasing hormone (GHRH) in several relevant processes that contribute to prostate cancer progression was analyzed. Firstly, we evaluated GHRH effects on cell proliferation and adhesion in human cancer prostate cell lines, LNCaP and PC3, by using specific assays (BrdU incorporation and collagen adhesion). The expression levels of the main marker molecules of these processes were measured by RT-PCR, Western blotting and zymography assays. GHRH increased both cell proliferation and proliferating cell nuclear antigen (PCNA) levels in LNCaP cells and in PC3 cells; however, such a rise was faster in the PC3 cells that represent the most aggressive stage of prostate cancer...
February 10, 2017: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/28192978/in-vitro-functional-quality-characterization-of-nota-modified-somatropins
#15
Nathalie Bracke, Han Yao, Evelien Wynendaele, Frederick Verbeke, Xiaolong Xu, Bert Gevaert, Alex Maes, Christophe Van de Wiele, Mike Sathekge, Sarah De Saeger, Bart M J De Spiegeleer
Chemical modifications on protein biopharmaceuticals introduce extra variability in addition to their inherent complexity, hence require more comprehensive analytical and functional characterization during their discovery, development and manufacturing. Somatropin (i.e. recombinant human growth hormone, rhGH) modified with the chelating agent S-2-(4-isothiocyanatobenzyl)-1,4,7-triazacyclononane-1,4,7-triacetic acid (p-SCN-Bn-NOTA) allows the incorporation of radiometals for research and possible theranostic purposes...
January 31, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28190647/human-growth-hormone-stabilizes-walking-and-improves-strength-in-a-patient-with-dominantly-inherited-calpainopathy
#16
Kira Philipsen Prahm, Ulla Feldt-Rasmussen, John Vissing
The aim was to investigate if daily low-dose treatment with recombinant human growth hormone (somatropine) can stabilize or improve muscle strength and walking capability in a patient with dominantly inherited calpainopathy. The patient was treated with daily injections of somatropine, except for a 6-month pause, over a period of 4.5 years. Efficacy was assessed by repeated muscle dynamometry tests and 6-minute walk tests (6MWT). Strength improved in most muscle groups on treatment, deteriorated in the 6-month off treatment, and improved again when treatment was resumed...
January 23, 2017: Neuromuscular Disorders: NMD
https://www.readbyqxmd.com/read/28187225/cancer-risks-in-patients-treated-with-growth-hormone-in-childhood-the-saghe-european-cohort-study
#17
Anthony J Swerdlow, Rosie Cooke, Dominique Beckers, Birgit Borgström, Gary Butler, Jean-Claude Carel, Stefano Cianfarani, Peter Clayton, Joël Coste, Annalisa Deodati, Emmanuel Ecosse, Ruth Gausche, Claudio Giacomozzi, Anita Cs Hokken-Koelega, Aysha J Khan, Wieland Kiess, Claudia E Kuehni, Primus-E Mullis, Roland Pfaffle, Lars Sävendahl, Grit Sommer, Muriel Thomas, Anders Tidblad, Sally Tollerfield, Liesbet Van Eycken, Gladys Rj Zandwijken
No abstract text is available yet for this article.
February 10, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28183093/putative-effects-of-obesity-on-linear-growth-and-puberty%C3%A2
#18
Shlomit Shalitin, Wieland Kiess
Childhood obesity is a major public health problem that has grown to epidemic proportions throughout the world. Obesity is influenced by genetic and environmental factors. The nutritional status plays an important role in growth and body weight regulation. Excess adiposity during childhood can affect the process of growth and puberty. Obese children are frequently tall for their age, with accelerated epiphyseal growth plate maturation despite low growth hormone levels. Several regulatory hormones may affect the process of linear growth in the constellation of obesity, as high levels of insulin and leptin are observed in obese children...
February 9, 2017: Hormone Research in Pædiatrics
https://www.readbyqxmd.com/read/28182992/mixed-mode-reversed-phase-positively-charged-repulsion-chromatography-for-intact-protein-separation
#19
Ling Ding, Zhimou Guo, Zhuo Hu, Xinmiao Liang
A mixed-mode reversed phase/positively charged repulsion stationary phase C8PN composed of octyl and amino group has been developed for separation of intact protein. Before the separation of proteins, a set of probe compounds were employed to evaluate the chromatographic properties of C8PN, demonstrating typical reversed phase/positively charged repulsion interaction on this stationary phase as estimated. Then the new C8PN stationary phase was used to separate a standard protein mixture on the reversed phase mode...
January 4, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28180138/er-microsome-preparation-and-subsequent-iaa-quantification-in-maize-coleoptile-and-primary-root-tissue
#20
Verena Kriechbaumer
Auxin is a major growth hormone in plants and the first plant hormone to be discovered and studied (Darwin and Darwin, 1880). The auxin molecule in plants was first identified as indole-3-acetic acid (IAA) by Kögl et al. (1934). Active research over nearly a decade has shed light on many of the molecular mechanisms of its action but the complexity and redundancy of the auxin biosynthetic network raises questions about control of this system. We have shown that some enzymes involved in the YUCCA-route of auxin biosynthesis are not cytosolic but localised to the endoplasmic reticulum (ER) in both Arabidopsis thaliana (YUCCA4...
May 5, 2016: Bio-protocol
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