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https://www.readbyqxmd.com/read/27926486/novel-epstein-barr-virus-like-particles-incorporating-gh-gl-ebna1-or-gb-lmp2-induce-high-neutralizing-antibody-titers-and-ebv-specific-t-cell-responses-in-immunized-mice
#1
Elizabeth M Perez, Joslyn Foley, Timelia Tison, Rute Silva, Javier Gordon Ogembo
Previous Epstein-Barr virus (EBV) prophylactic vaccines based on the major surface glycoprotein gp350/220 as an immunogen have failed to block viral infection in humans, suggesting a need to target other viral envelope glycoproteins. In this study, we reasoned that incorporating gH/gL or gB, critical glycoproteins for viral fusion and entry, on the surface of a virus-like particle (VLP) would be more immunogenic than gp350/220 for generating effective neutralizing antibodies to prevent viral infection of both epithelial and B cell lines...
December 1, 2016: Oncotarget
https://www.readbyqxmd.com/read/27924376/predicting-levator-avulsion-from-ics-pop-q-findings
#2
Alejandro Pattillo Garnham, Rodrigo Guzmán Rojas, Ka Lai Shek, Hans Peter Dietz
INTRODUCTION AND HYPOTHESIS: Levator avulsion is a common consequence of vaginal childbirth. It is associated with symptomatic female pelvic organ prolapse and is also a predictor of recurrence after surgical correction. Skills and hardware necessary for diagnosis by imaging are, however, not universally available. Diagnosis of avulsion may benefit from an elevated index of suspicion. The aim of this study was to examine the predictive value of the International Continence Society Pelvic Organ Prolapse Quantification (ICS POP-Q) for the diagnosis of levator avulsion by tomographic 4D translabial ultrasound...
December 6, 2016: International Urogynecology Journal
https://www.readbyqxmd.com/read/27924120/hippophae-rhamnoides-n-glycoproteome-analysis-a-small-step-towards-sea-buckthorn-proteome-mining
#3
Yaiphabi Sougrakpam, Renu Deswal
Hippophae rhamnoides is a hardy shrub capable of growing under extreme environmental conditions namely, high salt, drought and cold. Its ability to grow under extreme conditions and its wide application in pharmaceutical and nutraceutical industry calls for its in-depth analysis. N-glycoproteome mining by con A affinity chromatography from seedling was attempted. The glycoproteome was resolved on first and second dimension gel electrophoresis. A total of 48 spots were detected and 10 non-redundant proteins were identified by MALDI-TOF/TOF...
October 2016: Physiology and Molecular Biology of Plants: An International Journal of Functional Plant Biology
https://www.readbyqxmd.com/read/27921427/-growth-hormone-axis-gh-igf1-and-glucose-metabolism
#4
Michal Kršek
Growth hormone is a hormone of anterior lobe of pituitary gland which possesses besides its growth promoting effects also many other various physiological effects including its regulatory influences on metabolism with glucose metabolism belonging to most important ones. The present article summarizes basic information about metabolic consequences of disturbed growth hormone secretion and their importance for clinical presentation and management.Key words: acromegaly - glucose - growth hormone - growth hormone deficiency - IGF1 - metabolism...
2016: Vnitr̆ní Lékar̆ství
https://www.readbyqxmd.com/read/27919825/gene-expression-of-t3-regulated-genes-in-a-mouse-model-of-the-human-thyroid-hormone-resistance
#5
L A Santiago, L C Faustino, G F Pereira, G E Imperio, C C Pazos-Moura, F E Wondisford, F F Bloise, T M Ortiga-Carvalho
AIMS: To understand how thyroid hormone (TH) regulates tissue-specific gene expression in patients with the syndrome of resistance to TH (RTHβ), we used a mouse model that replicates the human RTHβ, specifically the ∆337T mutation in the thyroid hormone receptor β (THRβ). MAIN METHODS: We investigated the expression of key TH target genes in the pituitary and liver of TRβ(∆337T) and wild type THRβ mice by qPCR before and after a T3 suppression test consisting of the administration of increasing concentrations of T3 to hypothyroid mice...
December 2, 2016: Life Sciences
https://www.readbyqxmd.com/read/27919613/cellular-uptake-of-glucoheptoamidated-poly-amidoamine-pamam-g3-dendrimer-with-amide-conjugated-biotin-a-potential-carrier-of-anticancer-drugs
#6
Łukasz Uram, Magdalena Szuster, Aleksandra Filipowicz, Magdalena Zaręba, Elżbieta Wałajtys-Rode, Stanisław Wołowiec
In search for soluble derivatives of PAMAM dendrimers as potential carriers for hydrophobic drugs, the conjugates of PAMAM G3 with biotin, further converted into glycodendrimer with d-glucoheptono-1,4-lactone, were prepared. Polyamidoamine dendrimer (PAMAM) of third generation, G3 was functionalized with four biotin equivalents covalently attached to terminal amine nitrogens via amide bond G3(4B). The remaining 28 amine groups were blocked by glucoheptoamide substituents (gh) to give G3(4B28gh) or with one fluorescein equivalent (attached by reaction of G3(4B) with fluorescein isothiocyanate, FITC) via thiourea bond as FITC followed by exhaustive glucoheptoamidation to get G3(4B27gh1F)...
November 25, 2016: Bioorganic & Medicinal Chemistry
https://www.readbyqxmd.com/read/27919357/lipid-phenotype-and-heritage-pattern-in-families-with-genetic-hypercholesterolemia-not-related-to-ldlr-apob-pcsk9-or-apoe
#7
Estíbaliz Jarauta, María Rosario Pérez-Ruiz, Sofia Pérez-Calahorra, Rocio Mateo-Gallego, Ana Cenarro, Montserrat Cofán, Emilio Ros, Fernando Civeira, Maria Teresa Tejedor
BACKGROUND: A substantial proportion of individuals clinically diagnosed as familial hypercholesterolemia (FH) do not carry pathogenic mutations in candidate genes. Whether in them the high cholesterol trait is transmitted monogenically has not been studied. OBJECTIVES: We assessed the inheritance pattern, penetrance, and expression of high low-density lipoprotein (LDL)-cholesterol (LDLc) in families with genetic hypercholesterolemia (GH) without known causative mutations (non-FH-GH)...
November 2016: Journal of Clinical Lipidology
https://www.readbyqxmd.com/read/27916781/gradually-increasing-ethinyl-estradiol-for-turner-syndrome-may-produce-good-final-height-but-not-ideal-bmd
#8
Yukihiro Hasegawa, Daisuke Ariyasu, Masako Izawa, Junko Igaki-Miyamoto, Mami Fukuma, Megumi Hatano, Hiroko Yagi, Masahiro Goto
Estrogen replacement therapy in Turner syndrome should theoretically mimic the physiology of healthy girls. The objective of this study was to describe final height and bone mineral density (BMD) in a group of 17 Turner syndrome patients (group E) who started their ethinyl estradiol therapy with an ultra-low dosage (1-5 ng/kg/day) from 9.8˜13.7 years. The subjects in group E had been treated with GH 0.35 mg/kg/week since the average age of 7.4 years. The 30 subjects in group L, one of the historical groups, were given comparable doses of GH, and conjugated estrogen 0...
December 2, 2016: Endocrine Journal
https://www.readbyqxmd.com/read/27915352/baseline-characteristics-and-gender-differences-in-prepubertal-children-treated-with-growth-hormone-in-europe-usa-and-japan-25-years-kigs%C3%A2-experience-1987-2012-and-review
#9
Michael B Ranke, Anders Lindberg, Toshiaki Tanaka, Cecilia Camacho-Hübner, David B Dunger, Mitchell E Geffner
BACKGROUND: Information about disease-specific and gender-associated differences over longer time of short children treated with recombinant human growth hormone is missing. METHODS: We analyzed data at growth hormone (GH) start in prepubertal children diagnosed with idiopathic GH deficiency (IGHD), congenital GHD, acquired GHD, idiopathic short stature (ISS), and born small for gestational age (SGA) enrolled (1987-2012) in the Pfizer International Growth Study (KIGS®) from Europe, USA, and Japan...
December 3, 2016: Hormone Research in Pædiatrics
https://www.readbyqxmd.com/read/27914605/simultaneous-detection-of-recombinant-growth-hormones-in-equine-plasma-by-liquid-chromatography-high-resolution-tandem-mass-spectrometry-for-doping-control
#10
Kin-Sing Wong, George H M Chan, Emmie N M Ho, Terence S M Wan
Growth hormone (GH), or somatotropin, is a protein that may enhance physical performance and facilitate growth and wound healing. For this reason, growth hormones and their recombinant analogues are prohibited in human sports by the World Anti-Doping Agency (WADA) and in horseracing under Article 6 of the International Agreement on Breeding, Racing and Wagering published by the International Federation of Horse Racing Authorities (IFHA). Identifying the illicit use of GHs in both human athletes and racehorses is challenging, especially when differentiating between endogenous and exogenous GHs, and between analogues of GH from different species...
November 21, 2016: Journal of Chromatography. A
https://www.readbyqxmd.com/read/27913611/silent-somatotroph-tumour-revisited-from-a-study-of-80-patients-with-and-without-acromegaly-and-a-review-of-the-literature
#11
Laura Chinezu, Alexandre Vasiljevic, Jacqueline Trouillas, Marion Lapoirie, Emmanuel Jouanneau, Gérald Raverot
BACKGROUND: Silent somatotroph tumours are growth hormone (GH) immunoreactive (IR) pituitary tumours without clinical and biological signs of acromegaly. Their better characterisation is required to improve the diagnosis. MATERIALS AND METHODS: Twenty-one silent somatotroph tumours were compared to 59 somatotroph tumours with acromegaly. Tumours in each group were classified into GH and plurihormonal (GH/prolactin (PRL)/±thyroid-stimulating hormone (TSH)) and into densely granulated (DG) and sparsely granulated (SG) types...
February 2017: European Journal of Endocrinology
https://www.readbyqxmd.com/read/27911611/the-influence-of-gh-treatment-on-glucose-homeostasis-in-girls-with-turner-syndrome-a-7-years-study
#12
Federico Baronio, Laura Mazzanti, Ylenia Girtler, Federica Tamburrino, Fiorenzo Lupi, Silvia Longhi, Antonio Fanolla, Giorgio Radetti
CONTEXT: Growth hormone (GH) influences glucose homeostasis mainly by negatively affecting insulin sensitivity. OBJECTIVE: to longitudinally study the insulin sensitivity (HOMA-S), insulin secretion (insulinogenic index - IGI) and capacity of beta cells to adapt to changes in insulin sensitivity (oral disposition index-ODI) in girls affected by Turner syndrome (TS) undergoing GH treatment. DESIGN: a longitudinal retrospective seven years study Setting: a tertiary pediatric endocrine unit and a University pediatric Clinic...
December 2, 2016: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/27910864/renin-angiotensin-aldosterone-system-gene-polymorphisms-in-gestational-hypertension-and-preeclampsia-a-case-control-gene-association-study
#13
Xun Li, Hongzhuan Tan, Shujin Zhou, Shimin Hu, Tianyi Zhang, Yangfen Li, Qianru Dou, Zhiwei Lai, Fenglei Chen
Pregnancy-induced hypertension (PIH, including preeclampsia [PE] and gestational hypertension [GH]) and cardiovascular diseases (CVDs) have some metabolic changes and risk factors in common. Many studies have reported associations between single nucleotide polymorphisms (SNPs) of renin-angiotensin-aldosterone system (RAAS) genes and CVDs (particularly hypertension), and their findings have provided candidate SNPs for research on genetic correlates of PIH. We explored the association between hypertension-related RAAS SNPs and PIH in a Chinese population...
December 2, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27907169/crystal-structure-of-chitinase-chiw-from-paenibacillus-sp-str-fpu-7-reveals-a-novel-type-of-bacterial-cell-surface-expressed-multi-modular-enzyme-machinery
#14
Takafumi Itoh, Takao Hibi, Fumiko Suzuki, Ikumi Sugimoto, Akihiro Fujiwara, Koji Inaka, Hiroaki Tanaka, Kazunori Ohta, Yutaka Fujii, Akira Taketo, Hisashi Kimoto
The Gram-positive bacterium Paenibacillus sp. str. FPU-7 effectively hydrolyzes chitin by using a number of chitinases. A unique chitinase with two catalytic domains, ChiW, is expressed on the cell surface of this bacterium and has high activity towards various chitins, even crystalline chitin. Here, the crystal structure of ChiW at 2.1 Å resolution is presented and describes how the enzyme degrades chitin on the bacterial cell surface. The crystal structure revealed a unique multi-modular architecture composed of six domains to function efficiently on the cell surface: a right-handed β-helix domain (carbohydrate-binding module family 54, CBM-54), a Gly-Ser-rich loop, 1st immunoglobulin-like (Ig-like) fold domain, 1st β/α-barrel catalytic domain (glycoside hydrolase family 18, GH-18), 2nd Ig-like fold domain and 2nd β/α-barrel catalytic domain (GH-18)...
2016: PloS One
https://www.readbyqxmd.com/read/27902421/domain-evolution-in-enzymes-of-the-neopullulanase-subfamily
#15
Andrea Kuchtova, Stefan Janecek
Among the glycoside hydrolases (GHs) classified within the CAZy database, the α-amylase family GH13 containing ~30 different enzyme specificities and more than 37,000 sequences, represents one of the largest GH families. Earlier, based on a characteristic sequence motif in their 5th conserved sequence region (CSR), the two closely related subfamilies, the so-called oligo-1,6-glucosidase and neopullulanase subfamilies were described. Currently the two subfamilies cover several CAZy-defined GH13 subfamilies because the α-amylase family GH13 has officially been divided into 41 subfamilies...
November 1, 2016: Microbiology
https://www.readbyqxmd.com/read/27901064/obesity-and-gender-dependent-role-of-endogenous-somatostatin-and-cortistatin-in-the-regulation-of-endocrine-and-metabolic-homeostasis-in-mice
#16
Raúl M Luque, José Cordoba-Chacon, Ana I Pozo-Salas, Begoña Porteiro, Luis de Lecea, Rubén Nogueiras, Manuel D Gahete, Justo P Castaño
Somatostatin (SST) and cortistatin (CORT) regulate numerous endocrine secretions and their absence [knockout (KO)-models] causes important endocrine-metabolic alterations, including pituitary dysregulations. We have demonstrated that the metabolic phenotype of single or combined SST/CORT KO-models is not drastically altered under normal conditions. However, the biological actions of SST/CORT are conditioned by the metabolic-status (e.g. obesity). Therefore, we used male/female SST- and CORT-KO mice fed low-fat (LF) or high-fat (HF) diet to explore the interplay between SST/CORT and obesity in the control of relevant pituitary-axes and whole-body metabolism...
November 30, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27900635/somatostatin-and-dopamine-receptor-regulation-of-pituitary-somatotroph-adenomas
#17
REVIEW
Anat Ben-Shlomo, Ning-Ai Liu, Shlomo Melmed
Somatostatin and dopamine receptors are expressed in normal and tumoral somatotroph cells. Upon receptor stimulation, somatostatin and the somatostatin receptor ligands octreotide, lanreotide, and pasireotide, and to a lesser extent, dopamine and the dopamine analogs bromocriptine and cabergoline, suppress growth hormone (GH) secretion from a GH-secreting pituitary somatotroph adenoma. Somatostatin and dopamine receptors are Gαi-protein coupled that inhibit adenylate cyclase activity and cAMP production and reduce intracellular calcium concentration and calcium flux oscillations...
November 29, 2016: Pituitary
https://www.readbyqxmd.com/read/27900634/socs2-polymorphisms-are-not-associated-with-clinical-and-biochemical-phenotypes-in-acromegalic-patients
#18
Ericka B Trarbach, Alexander A Jorge, Felipe H Duarte, Marcello D Bronstein, Raquel S Jallad
PURPOSE: Suppressor of cytokine signaling 2 (SOCS2) is a STAT5b-regulated gene and one of its functions is to influence growth and development through negative regulatory effects on GH/IGF-1 pathway. So, we evaluate the potential influence of SOCS2 single nucleotide polymorphisms (SNPs) on clinical and laboratorial characteristics of a large cohort of Brazilian patients with acromegaly. METHODS: Four SOCS2 SNPs (rs3782415, rs3816997, rs3825199 and rs11107116) were selected and genotyped by real-time PCR using specific Taqman probe assays...
November 29, 2016: Pituitary
https://www.readbyqxmd.com/read/27898492/growth-hormone-regulates-the-sensitization-of-developing-peripheral-nociceptors-during-cutaneous-inflammation
#19
Xiaohua Liu, Kathryn J Green, Zachary K Ford, Luis F Queme, Peilin Lu, Jessica L Ross, Frank B Lee, Aaron T Shank, Renita C Hudgins, Michael P Jankowski
Cutaneous inflammation alters the function of primary afferents and gene expression in the affected dorsal root ganglia (DRGs). However specific mechanisms of injury-induced peripheral afferent sensitization and behavioral hypersensitivity during development are not fully understood. Recent studies in children suggest a potential role for growth hormone (GH) in pain modulation. GH modulates homeostasis and tissue repair after injury, but how GH effects nociception in neonates is not known. To determine if GH played a role in modulating sensory neuron function and hyper-responsiveness during skin inflammation in young mice, we examined behavioral hypersensitivity and the response properties of cutaneous afferents using an ex vivo hairy skin-saphenous nerve-dorsal root ganglion (DRG)-spinal cord preparation...
November 18, 2016: Pain
https://www.readbyqxmd.com/read/27898076/growth-hormone-biases-amygdala-network-activation-after-fear-learning
#20
B Gisabella, S Farah, X Peng, A Burgos-Robles, S H Lim, K A Goosens
Prolonged stress exposure is a risk factor for developing posttraumatic stress disorder, a disorder characterized by the 'over-encoding' of a traumatic experience. A potential mechanism by which this occurs is through upregulation of growth hormone (GH) in the amygdala. Here we test the hypotheses that GH promotes the over-encoding of fearful memories by increasing the number of neurons activated during memory encoding and biasing the allocation of neuronal activation, one aspect of the process by which neurons compete to encode memories, to favor neurons that have stronger inputs...
November 29, 2016: Translational Psychiatry
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