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"Insulin-Like Growth Factor"

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https://www.readbyqxmd.com/read/28811546/serum-derived-extracellular-vesicles-evs-impact-on-vascular-remodeling-and-prevent-muscle-damage-in-acute-hind-limb-ischemia
#1
Claudia Cavallari, Andrea Ranghino, Marta Tapparo, Massimo Cedrino, Federico Figliolini, Cristina Grange, Valentina Giannachi, Paolo Garneri, Maria Chiara Deregibus, Federica Collino, Pietro Rispoli, Giovanni Camussi, Maria Felice Brizzi
Serum is an abundant and accessible source of circulating extracellular vesicles (EVs). Serum-EV (sEV) pro-angiogenic capability and mechanisms are herein analyzed using an in vitro assay which predicts sEV angiogenic potential in vivo. Effective sEVs (e-sEVs) also improved vascular remodeling and prevented muscle damage in a mouse model of acute hind limb ischemia. e-sEV angiogenic proteomic and transcriptomic analyses show a positive correlation with matrix-metalloproteinase activation and extracellular matrix organization, cytokine and chemokine signaling pathways, Insulin-like Growth Factor and platelet pathways, and Vascular Endothelial Growth Factor signaling...
August 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28810998/delayed-diagnosis-of-acromegaly-in-the-context-of-post-traumatic-stress-disorder-due-to-symptoms-mimicking-known-psychotropic-medication-side-effects
#2
Ray-Bernard Portier, Afshin Afarin, Sara Pope
BACKGROUND: Acromegaly is caused by elevated secretion of human growth hormone, which is frequently because of intracranial tumors. This diagnosis is fairly uncommon with an incidence of 3 to 4 cases per million patients per year. We are presenting a case of acromegaly diagnosed in an active duty Chief Petty Officer. MATERIALS AND METHODS: A 38-year-old male Chief Petty Officer with no previous mental health diagnosis experienced post-traumatic stress disorder (PTSD)-like symptoms in early 2012 after deploying to Iraq and Afghanistan from 2010 to 2011...
July 2017: Military Medicine
https://www.readbyqxmd.com/read/28810880/nlrp7-contributes-to-in-vitro-decidualization-of-endometrial-stromal-cells
#3
Jyun-Yuan Huang, Pei-Hsiu Yu, Yueh-Chun Li, Pao-Lin Kuo
BACKGROUND: Nucleotide-binding oligomerization domain (NACHT), leucine rich repeat (LRR) and pyrin domain (PYD) 7 containing protein, NLRP7, is a member of the NLR family which serves as innate immune sensors. Mutations and genetic variants of NLRP7 have been found in women with infertility associated conditions, such as recurrent hydatidiform mole, recurrent miscarriage, and preeclampsia. Decidualization of endometrial stromal cells is a hallmark of tissue remodeling to support embryo implantation and proper placental development...
August 15, 2017: Reproductive Biology and Endocrinology: RB&E
https://www.readbyqxmd.com/read/28810619/microrna-503-suppresses-cell-proliferation-and-invasion-in-osteosarcoma-via-targeting-insulin-like-growth-factor-1-receptor
#4
Zili Wang, Chenhuang Zheng, Kunqi Jiang, Jinshen He, Xu Cao, Song Wu
MicroRNAs (miRs) are a class of small non-coding RNAs and have key roles in various cancer types. Recently, miR-503 has been reported to act as a tumor suppressor in osteosarcoma. However, the detailed mechanism of the regulatory role of miR-503 in osteosarcoma cell proliferation and invasion has largely remained elusive. The present study found that miR-503 was significantly downregulated in osteosarcoma tissues compared to that in matched adjacent non-tumorous tissues. In addition, the expression of miR-503 in osteosarcoma of T3-T4 stage was significantly lower when compared with that in T1-T2 stage samples...
August 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28810236/microrna-375-inhibits-growth-and-enhances-radiosensitivity-in-oral-squamous-cell-carcinoma-by-targeting-insulin-like-growth-factor-1-receptor
#5
Bin Zhang, Ying Li, Daorong Hou, Quan Shi, Shuo Yang, Qihong Li
BACKGROUND: MicroRNAs (miRNAs) have emerged as key players in various human biological processes, including tumorigenesis. Here, we investigated the roles of miR-375 in the pathogenesis of oral squamous cell carcinoma (OSCC). METHODS: We performed quantitative real-time PCR (qRT-PCR) to detect miR-375 expression in OSCC tissues and corresponding normal oral epithelial tissues and analyze the correlation of miR-375 expression with OSCC metastasis and patient's survival...
August 15, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28808855/incidence-of-myocardial-infarction-and-stroke-in-acromegaly-patients-results-from-the-german-acromegaly-registry
#6
Christof Schöfl, David Petroff, Anke Tönjes, Martin Grussendorf, Michael Droste, Günter Stalla, Cornelia Jaursch-Hancke, Sylvère Störmann, Jochen Schopohl
PURPOSE: Acromegaly is a rare disease generally brought about by a benign tumour in the pituitary and characterized by growth hormone (GH) and insulin-like growth factor 1 (IGF-1) excess. Increased mortality has been related to cardiovascular events that could be linked to these hormones and patients suffer from high rates of diabetes and hypertension. In this study, we examine if the incidence of myocardial infarction (MI) and stroke differ from that of the general population. METHODS: Data from the German Acromegaly Registry in seven specialized endocrine centres were analysed (n = 479, 56% female, 46 years old at diagnosis, 5549 person-years from diagnosis)...
August 14, 2017: Pituitary
https://www.readbyqxmd.com/read/28807942/nuclear-fak-and-runx1-cooperate-to-regulate-igfbp3-cell-cycle-progression-and-tumor-growth
#7
Marta Canel, Adam Byron, Andrew H Sims, Jessy Cartier, Hitesh Patel, Margaret C Frame, Valerie G Brunton, Bryan Serrels, Alan Serrels
Nuclear focal adhesion kinase (FAK) is a potentially important regulator of gene expression in cancer, impacting both cellular function and the composition of the surrounding tumor microenvironment. Here we report in a murine model of skin squamous cell carcinoma (SCC) that nuclear FAK regulates Runx1-dependent transcription of insulin-like growth factor binding protein 3 (IGFBP3), and that this regulates SCC cell cycle progression and tumor growth in vivo. Furthermore, we identified a novel molecular complex between FAK and Runx1 in the nucleus of SCC cells and showed that FAK interacted with a number of Runx1 regulatory proteins, including Sin3a and other epigenetic modifiers known to alter Runx1 transcriptional function through post-translational modification...
August 14, 2017: Cancer Research
https://www.readbyqxmd.com/read/28806748/temperature-effects-on-gene-expression-and-morphological-development-of-european-eel-anguilla-anguilla-larvae
#8
Sebastian N Politis, David Mazurais, Arianna Servili, Jose-Luis Zambonino-Infante, Joanna J Miest, Sune R Sørensen, Jonna Tomkiewicz, Ian A E Butts
Temperature is important for optimization of rearing conditions in aquaculture, especially during the critical early life history stages of fish. Here, we experimentally investigated the impact of temperature (16, 18, 20, 22 and 24°C) on thermally induced phenotypic variability, from larval hatch to first-feeding, and the linked expression of targeted genes [heat shock proteins (hsp), growth hormone (gh) and insulin-like growth factors (igf)] associated to larval performance of European eel, Anguilla anguilla...
2017: PloS One
https://www.readbyqxmd.com/read/28806419/effects-of-short-term-dry-immersion-on-bone-remodeling-markers-insulin-and-adipokines
#9
Marie-Thérèse Linossier, Liubov E Amirova, Mireille Thomas, Myriam Normand, Marie-Pierre Bareille, Guillemette Gauquelin-Koch, Arnaud Beck, Marie-Claude Costes-Salon, Christine Bonneau, Claude Gharib, Marc-Antoine Custaud, Laurence Vico
BACKGROUND: Dry immersion (DI), a ground-based model of microgravity previously used in Russia, has been recently implemented in France. The aim of this study was to analyze early events in a short-term DI model in which all conditions are met to investigate who is first challenged from osteo- or adipo-kines and to what extent they are associated to insulin-regulating hormones. METHODS: Twelve healthy men were submitted to a 3-day DI. Fasting blood was collected during pre-immersion phase for the determination of the baseline data collection (BDC), daily during DI (DI24h, DI48H and DI72h), then after recovery (R+3h and R+24h)...
2017: PloS One
https://www.readbyqxmd.com/read/28804622/human-placental-growth-hormone-in-normal-and-abnormal-fetal-growth
#10
Alexandros Velegrakis, Maria Sfakiotaki, Stavros Sifakis
Human placental growth hormone (PGH), encoded by the growth hormone (GH) variant gene on chromosome 17, is expressed in the syncytiotrophoblast and extravillous cytotrophoblast layers of the human placenta. Its maternal serum levels increase throughout pregnancy, and gradually replaces the pulsatile secreted pituitary GH. PGH is also detectable in cord blood and in the amniotic fluid. This placental-origin hormone stimulates glyconeogenesis, lipolysis and anabolism in maternal organs, and influences fetal growth, placental development and maternal adaptation to pregnancy...
August 2017: Biomedical Reports
https://www.readbyqxmd.com/read/28803769/urine-biomarkers-of-tubular-renal-cell-damage-for-the-prediction-of-acute-kidney-injury-after-cardiac-surgery-a-pilot-study
#11
Tanja Mayer, Daniel Bolliger, Markus Scholz, Oliver Reuthebuch, Michael Gregor, Patrick Meier, Martin Grapow, Manfred D Seeberger, Jens Fassl
OBJECTIVE: To evaluate the perioperative course of urine levels of the renal damage biomarkers tissue inhibitor of metalloproteinase 2 (TIMP-2) and insulin-like growth factor-binding protein 7 (IGFBP7) and to evaluate the predictive value of elevated TIMP-2 × IGFBP7 concentrations to predict acute kidney injury (AKI) early after cardiac on-pump surgery. DESIGN: Prospective, observational cohort study. SETTING: University hospital. PARTICIPANTS: The study comprised 110 consecutive patients undergoing elective cardiac surgery with cardiopulmonary bypass (CPB) between January and March 2014...
April 16, 2017: Journal of Cardiothoracic and Vascular Anesthesia
https://www.readbyqxmd.com/read/28803590/differential-protein-analysis-of-serum-exosomes-post-intravenous-immunoglobulin-therapy-in-patients-with-kawasaki-disease
#12
Li Zhang, Qi-Fang Song, Jing-Jie Jin, Ping Huang, Zhou-Ping Wang, Xiao-Fei Xie, Xiao-Qiong Gu, Xue-Juan Gao, Hong-Ling Jia
BACKGROUND: Kawasaki disease, which is characterised by systemic vasculitides accompanied by acute fever, is regularly treated by intravenous immunoglobulin to avoid lesion formation in the coronary artery; however, the mechanism of intravenous immunoglobulin therapy is unclear. Hence, we aimed to analyse the global expression profile of serum exosomal proteins before and after administering intravenous immunoglobulin. METHODS: Two-dimensional electrophoresis coupled with mass spectrometry analysis was used to identify the differentially expressed proteome of serum exosomes in patients with Kawasaki disease before and after intravenous immunoglobulin therapy...
August 14, 2017: Cardiology in the Young
https://www.readbyqxmd.com/read/28802353/hearing-loss-in-children-with-growth-hormone-deficiency
#13
John S Muus, Forest W Weir, Kathryn L Kreicher, Deborah A Bowlby, Christopher M Discolo, Ted A Meyer
OBJECTIVE: Although insulin-like growth factor 1 (IGF-1) has been shown to be important for inner-ear development in animal models, little is known about the otologic and audiologic findings of children with growth hormone deficiency (GHD). The goal of this study is to evaluate the prevalence, type, and severity of hearing impairment in children with GHD. METHODS: Audiologic, otologic, and demographic data were recorded for children with a diagnosis of GHD in the AudGen database...
September 2017: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/28801361/one-level-up-abnormal-proteolytic-regulation-of-igf-activity-plays-a-role-in-human-pathophysiology
#14
REVIEW
Jesús Argente, Julie A Chowen, Luis A Pérez-Jurado, Jan Frystyk, Claus Oxvig
The discovery of a mutation in a specific gene can be very important for determining the pathophysiology underlying the disease of a patient and may also help to decide the best treatment protocol on an individual basis. However, sometimes the discovery of mutations in new proteins advances our comprehension in a more widespread manner. The growth hormone (GH)/insulin-like growth factor (IGF)-1 axis is fundamental for systemic growth, but is also involved in many other important processes. Our understanding of this system in physiology and pathophysiology has advanced throughout the years with each discovery of mutations in members of this axis...
August 11, 2017: EMBO Molecular Medicine
https://www.readbyqxmd.com/read/28801055/therapy-with-mesenchymal-stromal-cells-or-conditioned-medium-reverse-cardiac-alterations-in-a-high-fat-diet-induced-obesity-model
#15
P S Daltro, B C Barreto, P G Silva, P Chenaud Neto, P H F Sousa Filho, D Santana Neta, G B Carvalho, D N Silva, B D Paredes, A C de Alcantara, L A R Freitas, R D Couto, R R Santos, B S F Souza, M B P Soares, S G Macambira
BACKGROUND: Obesity is associated with numerous cardiac complications, including arrhythmias, cardiac fibrosis, remodeling and heart failure. Here we evaluated the therapeutic potential of mesenchymal stromal cells (MSCs) and their conditioned medium (CM) to treat cardiac complications in a mouse model of high-fat diet (HFD)-induced obesity. METHODS: After obesity induction and HFD withdrawal, obese mice were treated with MSCs, CM or vehicle. Cardiac function was assessed using electrocardiography, echocardiography and treadmill test...
August 8, 2017: Cytotherapy
https://www.readbyqxmd.com/read/28800636/combined-sprint-and-resistance-training-abrogates-age-differences-in-somatotropic-hormones
#16
Maha Sellami, Wissem Dhahbi, Lawrence D Hayes, Johnny Padulo, Fatma Rhibi, Hanen Djemail, Anis Chaouachi
The aim of this investigation was to compare serum growth hormone (GH), insulin-like growth factor-1 (IGF-1) and insulin-like growth factor-binding protein-3 (IGFBP-3) in response to a combined sprint and resistance training (CSRT) program in young and middle-aged men.Thirty-eight healthy, moderately trained men participated in this study. Young and middle-aged men were randomly assigned to, a young training group (YT = 10, 21.4±1.2yrs) ora young control group (YC = 9, 21.6±1.8 yrs), a middle-aged training group (MAT = 10, 40...
2017: PloS One
https://www.readbyqxmd.com/read/28800315/mir-99a-suppresses-proliferation-migration-and-invasion-of-esophageal-squamous-cell-carcinoma-cells-through-inhibiting-the-igf1r-signaling-pathway
#17
Li-Li Mei, Yun-Tan Qiu, Meng-Bing Huang, Wen-Jun Wang, Jie Bai, Zhi-Zhou Shi
miR-99a is down-regulated in esophageal squamous cell carcinoma (ESCC), however the role and underlying mechanism are still unknown. We aim to explore the role and mechanism of miR-99a down-regulation in ESCC. The expression of miR-99a in ESCC tissues and cell lines was detected by Human miRNA Microarrays and Real-time PCR. The effects of miR-99a on cell proliferation, migration and invasion were determined by Cell Counting Kit-8 (CCK-8) assay, transwell migration and invasion assay. Target gene of miR-99a were analyzed by target prediction software and validated by Real-time PCR and Western blotting assay...
July 31, 2017: Cancer Biomarkers: Section A of Disease Markers
https://www.readbyqxmd.com/read/28797449/nomogram-for-risk-prediction-of-malignant-transformation-in-oral-leukoplakia-patients-using-combined-biomarkers
#18
Xianglan Zhang, Ki-Yeol Kim, Zhenlong Zheng, Shadavlonjid Bazarsad, Jin Kim
OBJECTIVE: Squamous cell carcinomas (SCC) are the most common malignancies in the oral mucosa; these carcinomas have been preceded by potentially malignant oral disorders (PMODs), mostly oral leukoplakia (OL). No specific biomarker has been widely accepted for predicting the risk of malignant transformation of PMODs. The aim of this study was to develop an accurate prediction model for the malignant transformation of OL using clinical variables and candidate biomarkers. MATERIALS AND METHODS: To achieve this goal, 10 candidate biomarkers that had previously been reported as useful molecules were investigated: P53, Ki-67, P16, β-catenin, c-jun, c-met, insulin like growth factor II mRNA-binding protein (IMP-3), cyclooxygenase (COX-2), podoplanin (PDPN) and carbonic anhydrase 9 (CA9)...
September 2017: Oral Oncology
https://www.readbyqxmd.com/read/28795851/selective-induction-of-apoptosis-in-mcf7-cancer-cell-by-targeted-liposomes-functionalized-with-mannose-6-phosphate
#19
Cristina Minnelli, Laura Cianfruglia, Emiliano Laudadio, Roberta Galeazzi, Michela Pisani, Emanuela Crucianelli, Davide Bizzaro, Tatiana Armeni, Giovanna Mobbili
Liposomes are versatile platforms to carry anticancer drugs in targeted drug delivery; they can be surface modified by different strategies and, when coupled with targeting ligands, are able to increase cellular internalization and organelle-specific drug delivery. An interesting strategy of antitumoral therapy could involve the use of lysosomotropic ligand-targeted liposomes loaded with molecules, which can induce lysosomal membrane permeabilization (LMP), leakage of cathepsins into the cytoplasm and subsequent apoptosis...
August 10, 2017: Journal of Drug Targeting
https://www.readbyqxmd.com/read/28795385/hsa_circ_0045714-regulates-chondrocyte-proliferation-apoptosis-and-extracellular-matrix-synthesis-by-promoting-the-expression-of-mir-193b-target-gene-igf1r
#20
Bao-Feng Li, Ying Zhang, Jin Xiao, Fei Wang, Mei Li, Xiao-Ze Guo, Hui-Bin Xie, Hong Xia, Bei Chen
In recent years, some studies have been made on the effects of circular RNA (circRNA) in osteoarthritis (OA) and so on; however, its mechanisms remain to be further explored. Studies have shown that tumor necrosis factor-alpha can inhibit hsa_circ_0045714 expression in chondrocytes so as to upregulate miR-193b expression. Dual-luciferase reporter assay showed that insulin-like growth factor 1 receptor (IGF1R) is a key target gene of miR-193b. Hsa_circ_0045714 over-expression does not influence miR-193b expression, but can inhibit its transcriptional activity, thereby upregulating IGF1R expression...
August 9, 2017: Human Cell
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