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IGFBP-1

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https://www.readbyqxmd.com/read/28179448/the-igf-system-in-patients-with-type-2-diabetes-associations-with-markers-of-cardiovascular-target-organ-damage
#1
Rikke Hjortebjerg, Esben Laugesen, Pernille Høyem, Claus Oxvig, Brian Stausbøl-Grøn, Søren Tang Knudsen, Won Y Kim, Per Løgstrup Poulsen, Tk K Hansen, Mette Bjerre, Jan Frystyk
OBJECTIVE: Perturbations in the insulin-like growth factor (IGF) system may contribute to the accelerated cardiovascular disease (CVD) that occurs in patients with type 2 diabetes (T2D). However, it remains unknown whether the IGF system is also involved in the development of early, subclinical CVD. We characterised the IGF system in T2D patients and matched controls and examined associations with markers of subclinical target organ damage. METHODS: The study included 99 patients with recently diagnosed T2D and 99 age- and sex-matched controls...
February 8, 2017: European Journal of Endocrinology
https://www.readbyqxmd.com/read/28178340/sputum-biomarkers-in-ipf-evidence-for-raised-gene-expression-and-protein-level-of-igfbp-2-il-8-and-mmp-7
#2
J Guiot, M Henket, J L Corhay, C Moermans, R Louis
BACKGROUND: Idiopathic pulmonary fibrosis (IPF) is a rare lung disease of unknown origin leading rapidly to death. This paper addresses the issue of whether sputum induction is a suitable tool to study respiratory tract inflammation and potential biomarkers in IPF compared to COPD, a fibrosing airway wall disease. METHODS: In a cross-sectional analysis, 15 IPF patients, 32 COPD and 30 healthy subjects underwent sputum induction. Total sputum cell counts and the amount of TGF- β, IGF-1, IGF-2, IGFBP-1, IGFBP-2, IGFBP-3, IL-8, IL-13, MMP-7, MMP-9, YKL-40, TNF-α and KL-6 in sputum supernatant were analysed...
2017: PloS One
https://www.readbyqxmd.com/read/28143425/higher-igfbp-1-to-igf-1-serum-ratio-predicts-unfavourable-survival-in-patients-with-nasopharyngeal-carcinoma
#3
Xinwei Feng, Jianhua Lin, Shan Xing, Wanli Liu, Ge Zhang
BACKGROUND: The insulin-like growth factor (IGF) system plays an important role in the development and progression of cancer. However, little is known about the expression of the IGF system components and their clinicopathological significance and prognostic value in nasopharyngeal carcinoma (NPC). METHODS: IGF system components (IGF-1, IGF-2, IGF-1SR, IGFBP-1, IGFBP-2, IGFBP-3, IGFBP-4 and IGFBP-6) were quantified from the plasma of NPC patients and healthy individuals using the RayBio Human Cytokine Antibody Array...
January 31, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28130434/selective-progesterone-receptor-modulator-sprm-ulipristal-acetate-upa-and-its-effects-on-the-human-endometrium
#4
L H R Whitaker, A A Murray, R Matthews, G Shaw, A R W Williams, P T K Saunders, H O D Critchley
STUDY QUESTION: What is the impact of administration of the selective progesterone receptor modulator (SPRM), ulipristal acetate (UPA) on the endometrium of women with fibroids? SUMMARY ANSWER: UPA administration altered expression of sex-steroid receptors and progesterone-regulated genes and was associated with low levels of glandular and stromal cell proliferation. WHAT IS KNOWN ALREADY: Administration of all SPRM class members results in PAEC (progesterone receptor modulator associated endometrial changes)...
January 26, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28122472/human-placental-growth-hormone-is-increased-in-maternal-serum-at-20-weeks-of-gestation-in-pregnancies-with-large-for-gestational-age-babies
#5
Shutan Liao, Mark H Vickers, Rennae S Taylor, Beatrix Jones, Mhoyra Fraser, Lesley M E McCowan, Philip N Baker, Jo K Perry
To investigate the relationship between maternal serum concentrations of placental growth hormone (GH-V), insulin-like growth factor (IGF)-1 and 2, IGF binding proteins (IGFBP)-1 and 3 and birth weight in appropriate-for-gestational-age (AGA), large-for-gestational-age (LGA) and small-for-gestational-age (SGA) cases in a nested case-control study. Maternal serum samples were selected from the Screening for Pregnancy Endpoints (SCOPE) biobank in Auckland, New Zealand. Serum hormone concentrations were determined by ELISA...
January 25, 2017: Growth Factors
https://www.readbyqxmd.com/read/28108607/insulin-like-growth-factor-binding-protein-1-could-improve-glucose-regulation-and-insulin-sensitivity-through-its-rgd-domain
#6
Natalie J Haywood, Paul A Cordell, Kar Yeun Tang, Natallia Makova, Nadira Y Yuldasheva, Helen Imrie, Hema Viswambharan, Alexander F Bruns, Richard M Cubbon, Mark T Kearney, Stephen B Wheatcroft
Low circulating levels of insulin-like growth factor binding protein 1 (IGFBP-1) are associated with insulin resistance and predict the development of type 2 diabetes. IGFBP-1 can affect cellular functions independently of IGF binding through an Arg-Gly-Asp (RGD) integrin-binding motif. Whether causal mechanisms underlie the favorable association of high IGFBP-1 levels with insulin sensitivity and whether these could be exploited therapeutically remain unexplored. We used recombinant IGFBP-1 and a synthetic RGD-containing hexapeptide in complementary in vitro signaling assays and in vivo metabolic profiling in obese mice to investigate the effects of IGFBP-1 and its RGD domain on insulin sensitivity, insulin secretion, and whole-body glucose regulation...
February 2017: Diabetes
https://www.readbyqxmd.com/read/28096479/igf-1-receptor-modulates-foxo1-mediated-tamoxifen-response-in-breast-cancer-cells
#7
Ali Vaziri-Gohar, Yan Zheng, Kevin D Houston
: Tamoxifen is a common adjuvant treatment for ERalpha-positive breast cancer patients, however acquired resistance abrogates the efficacy of this therapeutic approach. We recently demonstrated that G protein-coupled estrogen receptor 1 (GPER1) mediates tamoxifen action in breast cancer cells by inducing insulin-like growth factor binding protein-1 (IGFBP-1) to inhibit IGF-1-dependent signaling. To determine if dysregulation of IGFBP-1 induction is associated with tamoxifen resistance, IGFBP-1 transcription was measured in tamoxifen-resistant MCF-7 cells (TamR) after tamoxifen (Tam) treatment...
January 17, 2017: Molecular Cancer Research: MCR
https://www.readbyqxmd.com/read/28089088/synovial-chondromatosis-of-the-temporomandibular-joint-immunohistochemical-examinations-regarding-the-role-of-insulin-like-growth-factors-and-their-binding-proteins-in-the-etiology-of-this-disease
#8
Christian T Wilms, Nils Heim, Marcus Teschke, Rudolf R Reich, Werner Götz
Synovial chondromatosis (SC) is a benign disease of the joints without a known cause. It sometimes affects the temporomandibular joint (TMJ) and is accompanied by pain, swelling, malocclusion, and crepitation. It has been divided into three stages by Milgram and is supposed to originate from the synovia and cartilage of a joint (Milgram, 1977b). The aim of this study was to examine an involvement of the insulin-like growth factors (IGF-I/-II) and their binding proteins (IGFBP-1 to -6) in the etiology of this disease...
December 14, 2016: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28051155/loss-of-mir-542-3p-enhances-igfbp-1-expression-in-decidualizing-human-endometrial-stromal-cells
#9
Hideno Tochigi, Takeshi Kajihara, Yosuke Mizuno, Yumi Mizuno, Shunsuke Tamaru, Yoshimasa Kamei, Yasushi Okazaki, Jan J Brosens, Osamu Ishihara
Endometrial decidualization represents an essential step for the successful implantation of the embryo; however, the molecular mechanism behind this differentiation process remains unclear. This study aimed to identify novel microRNAs (miRNAs) involved in the regulation of decidual gene expression in human endometrial stromal cells (HESCs). An in vitro analysis of primary undifferentiated and decidualizing HESCs was conducted. HESCs were isolated from hysterectomy specimens from normally cycling premenopausal women with uterine fibroids, who were not on hormonal treatment at the time of surgery...
January 4, 2017: Scientific Reports
https://www.readbyqxmd.com/read/27979730/differential-basal-and-exercise-induced-igf-i-system-responses-to-resistance-vs-calisthenic-based-military-readiness-training-programs
#10
Bradley C Nindl, Joseph A Alemany, Kevin R Rarick, Shawn R Eagle, Mathew E Darnell, Katelyn F Allison, Everett A Harman
OBJECTIVE: The purpose of this study was to: 1) evaluate differential responses of the IGF-I system to either a calisthenic- or resistance exercise-based program and 2) determine if this chronic training altered the IGF-I system during an acute resistance exercise protocol. DESIGN: Thirty-two volunteers were randomly assigned into a resistance exercise-based training (RT) group (n=15, 27±5y, 174±6cm, 81±12kg) or a calisthenic-based training group (CT) (n=17, 29±5y, 179±8cm, 85±10kg) and all underwent 8weeks of exercise training (1...
December 6, 2016: Growth Hormone & IGF Research
https://www.readbyqxmd.com/read/27930694/influence-of-fasting-status-and-sample-preparation-on-metabolic-biomarker-measurements-in-postmenopausal-women
#11
Neil Murphy, Roni T Falk, Diana B Messinger, Michael Pollak, Xiaonan Xue, Juan Lin, Robin Sgueglia, Howard D Strickler, Mia M Gaudet, Marc J Gunter
BACKGROUND: Epidemiologic data linking metabolic markers-such as insulin, insulin-like growth factors (IGFs)-and adipose tissue-derived factors with cancer are inconsistent. Between-study differences in blood collection protocols, in particular participant's fasting status, may influence measurements. METHODS: We investigated the impact of fasting status and blood sample processing time on components of the insulin/IGF axis and in adipokines in a controlled feeding study of 45 healthy postmenopausal-women aged 50-75 years...
2016: PloS One
https://www.readbyqxmd.com/read/27919172/influence-of-glyco-oxidation-on-complexes-between-fibrin-ogen-and-insulin-like-growth-factor-binding-protein-1-in-patients-with-diabetes-mellitus-type-2
#12
Nikola Gligorijević, Ana Penezić, Olgica Nedić
Fibrinogen and insulin-like growth factor-binding protein (IGFBP-1) are tightly connected to metabolic changes and complications in patients with diabetes mellitus (DM), and since they mutually interact to form complexes in plasma, we investigated whether and to what extent IGFBP-1/fibrinogen complexes change due to glyco-oxidative processes in DM and whether they participate in fibrin clot formation. These complexes were determined by immunoblotting in plasma samples from healthy adults and patients with DM type 2...
December 5, 2016: Free Radical Research
https://www.readbyqxmd.com/read/27899768/effects-of-dietary-restriction-on-adipose-mass-and-biomarkers-of-healthy-aging-in-human
#13
Daniele Lettieri-Barbato, Esmeralda Giovannetti, Katia Aquilano
In developing countries the rise of obesity and obesity-related metabolic disorders, such as cardiovascular diseases and type 2 diabetes, reflects the changes in lifestyle habits and wrong dietary choices. Dietary restriction (DR) regimens have been shown to extend health span and lifespan in many animal models including primates. Identifying biomarkers predictive of clinical benefits of treatment is one of the primary goals of precision medicine. To monitor the clinical outcomes of DR interventions in humans, several biomarkers are commonly adopted...
November 29, 2016: Aging
https://www.readbyqxmd.com/read/27823741/insulin-growth-factor-igf-1-igf-binding-proteins-and-ovarian-cancer-risk-a-systematic-review-and-meta-analysis
#14
REVIEW
Ximena Gianuzzi, Gabriela Palma-Ardiles, Wendy Hernandez-Fernandez, Vinay Pasupuleti, Adrian V Hernandez, Faustino R Perez-Lopez
BACKGROUND: Insulin resistance (IR) has been implicated in carcinogenesis, but there is no consensus regarding its involvement in ovarian cancer. We performed a systematic review and meta-analysis to evaluate the association between IR and ovarian cancer. METHODS: Searches were conducted in five databases for studies evaluating IR markers (levels of serum insulin, C peptide, insulin growth factor [IGF] 1 and IGF-binding proteins [IGFBPs], homeostatic model assessment insulin resistance, and quantitative insulin-sensitivity check index) and ovarian cancer risk...
December 2016: Maturitas
https://www.readbyqxmd.com/read/27820656/insulinlike-growth-factor-binding-protein-1-and-ghrelin-predict-health-outcomes-among-older-adults-chs-cohort
#15
Robert C Kaplan, Garrett Strizich, Chino Aneke-Nash, Clara Dominguez-Islas, Petra Bůžková, Howard Strickler, Thomas Rohan, Michael Pollak, Lewis Kuller, Jorge R Kizer, Anne Cappola, Christopher I Li, Bruce M Psaty, Anne Newman
CONTEXT: Multiple diseases may explain the association of the growth hormone / insulinlike growth factor-I (GH/IGF-I) axis with longevity. OBJECTIVE: To relate circulating GH/IGF-I system protein levels with major health events. DESIGN: Cohort study Setting: Four US communities Participants: Adults (n=2268) 65 years and older free of diabetes and cardiovascular disease. MEASUREMENTS: We assessed insulinlike growth factor binding protein-1 (IGFBP-1) and ghrelin in fasting and 2-hour oral glucose tolerance test (OGTT) blood samples, as well as fasting IGF-I and IGFBP-3...
November 7, 2016: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/27776273/igfbp-2-and-3-co-ordinately-regulate-igf1-induced-matrix-mineralisation-of-differentiating-human-dental-pulp-cells
#16
Hanaa Alkharobi, Aishah Alhodhodi, Yousef Hawsawi, Hasanain Alkafaji, Deirdre Devine, Reem El-Gendy, James Beattie
Human dental pulp cells (DPCs), which are known to contain a subset of stem cells capable of reforming a dentin and pulp-like complex upon in vivo transplantation, were isolated from third molars of three healthy donors and differentiated to a matrix mineralisation phenotype using by culture in dexamethasone and l-ascorbic acid. qRT-PCR analysis of insulin-like growth factor ( IGF) axis gene expression indicated that all genes, except insulin-like growth factor 1 (IGF1) and insulin-like growth factor binding protein-1 ( IGFBP-1), were expressed in DPCs...
November 2016: Stem Cell Research
https://www.readbyqxmd.com/read/27775453/the-association-between-insulin-like-growth-factor-1-igf-1-igf-binding-proteins-igfbps-and-the-carboxyterminal-propeptide-of-type-i-procollagen-picp-in-pre-and-postmenopausal-women-with-rheumatoid-arthritis
#17
A Szeremeta, A Jura-Półtorak, K Komosińska-Vassev, A Zoń-Giebel, D Kapołka, K Olczyk
OBJECTIVES: To assess the association between plasma levels of the insulin-like growth factor (IGF) system including IGF-1, IGF-binding proteins (IGFBPs) including IGFBP-1, total (t-)IGFBP-3 and functional (f-)IGFBP-3, and the carboxyterminal propeptide of type I procollagen (PICP) in pre- and postmenopausal women with rheumatoid arthritis (RA). METHOD: Plasma concentrations of IGF-1, IGFBP-1, t-IGFBP-3, f-IGFBP-3, and PICP were measured by immunoassay. RESULTS: No significant difference was observed in plasma IGF-1 levels between pre- and postmenopausal subjects...
October 24, 2016: Scandinavian Journal of Rheumatology
https://www.readbyqxmd.com/read/27726925/the-effect-of-hmb-ingestion-on-the-igf-i-and-igf-binding-protein-response-to-high-intensity-military-training
#18
Michael J Redd, Jay R Hoffman, Yftach Gepner, Jeffrey R Stout, Mattan W Hoffman, Daniel Ben-Dov, Shany Funk, David D Church, Guy Avital, Yacov Chen, Hagai Frankel, Ishay Ostfeld
OBJECTIVE: Insulin-like growth factor-I (IGF-I) is a metabolic and anabolic biomarker that has been proposed to reflect physiological adaptations resulting from multistressor environments. The bioactivity of IGF-I is regulated by seven different insulin-like growth factor binding proteins (IGFBPs) which act not only as carriers of IGF-1, but also function as a modulator of IGF-I availability and activity. Supplementing with β-hydroxy-β-methylbutyrate (HMB) has been shown to enhance physiological outcomes associated with intense training, and has been reported to augment the IGF-1 response...
February 2017: Growth Hormone & IGF Research
https://www.readbyqxmd.com/read/27726061/effects-of-excess-copper-ions-on-decidualization-of-human-endometrial-stromal-cells
#19
Ying Li, Zhen-Long Kang, Na Qiao, Lian-Mei Hu, Yong-Jiang Ma, Xiao-Huan Liang, Ji-Long Liu, Zeng-Ming Yang
The aim of this study was to investigate the effects of copper ions on decidualization of human endometrial stromal cells (HESCs) cultured in vitro. Firstly, non-toxic concentrations of copper D-gluconate were screened in HESCs based on cell activity. Then, the effects of non-toxic concentrations of copper ions (0~250 μM) were examined on decidualization of human endometrial stromal cells. Our data demonstrated that the mRNA expressions of insulin-like growth factor binding protein (IGFBP-1), prolactin (PRL), Mn-SOD, and FOXO1were down-regulated during decidualization following the treatments with 100 or 250 μM copper ions...
October 10, 2016: Biological Trace Element Research
https://www.readbyqxmd.com/read/27689132/insulin-like-growth-factor-1-and-selected-insulin-like-growth-factor-binding-protein-concentrations-during-an-ultramarathon-sled-dog-race
#20
Matthew W Brunke, Christopher W Frye, Corri B Levine, Cristina Hansen, Joseph J Wakshlag
The objective of this study was to investigate the effects of running a 1000-mile (1600 km) endurance sled dog race on serum insulin-like growth factor-1 (IGF-1) and insulin-like growth factor binding proteins 1 and 3 (IGFBP-1 and IGFBP-3). Serum was examined from 12 sled dogs prior to the race, at midrace (approximately 690 km), and again at the finish. IGF-1, IGFBP-1, and IGFBP-3 were assessed using radioimmunoassay or enzyme linked immune-absorbance assays. Mean prerace concentrations were significantly higher than midrace and end-race concentrations at 215...
2016: TheScientificWorldJournal
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