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https://www.readbyqxmd.com/read/28926833/circulating-igf-i-igfbp-3-and-the-igf-i-igfbp-3-molar-ratio-concentration-and-height-outcome-in-prepubertal-short-children-on-rhgh-treatment-over-two-years-of-therapy
#1
María Gabriela Ballerini, Débora Braslavsky, Paula Alejandra Scaglia, Ana Keselman, María Eugenia Rodríguez, Alicia Martínez, Analía Verónica Freire, Horacio Mario Domené, Héctor Guillermo Jasper, Ignacio Bergadá, María Gabriela Ropelato
OBJECTIVE: To investigate the occurrence of abnormally elevated values of biomarkers of growth hormone (GH) action in short children on recombinant human GH (rhGH) therapy. METHODS: Sixty-three prepubertal short children were examined: 31 with GH deficiency (GHD), 25 small for gestational age (SGA), and 9 with Turner syndrome (TS). The main outcomes were the following: standard deviation score (SDS) values of IGF-I, IGFBP-3, and IGF-I/IGFBP-3 molar ratio before, at the 1st and at the 2nd year on rhGH and Δheight (Ht)-SDS to evaluate GH treatment efficacy (adequate 1st-year ΔHt SDS: >0...
September 19, 2017: Hormone Research in Pædiatrics
https://www.readbyqxmd.com/read/28922541/effects-of-collagen-peptides-intake-on-skin-ageing-and-platelet-release-in-chronologically-aged-mice-revealed-by-cytokine-array-analysis
#2
Hongdong Song, Ling Zhang, Yongkang Luo, Siqi Zhang, Bo Li
Action mechanisms underlying various biological activities of collagen peptides (CPs) remained to be elucidated. Cytokines may play an important role in mediating these health benefits of CPs. This study aimed to systemically examine the cytokines in skin and blood regulated by CPs intake. Thirteen-month-old female Kunming mice were administered with CPs for 2 months (0 or 400 mg/kg bodyweight/day). The cytokines in skin and plasma were analysed using a 53-cytokine array and corresponding ELISA kits. In skin, CPs intake significantly down-regulated placenta growth factor (PIGF-2), insulin-like growth factor (IGF)-binding protein (IGFBP) -2 and IGFBP-3, and up-regulated platelet factor 4 (PF4), serpin E1 and transforming growth factor (TGF)-β1 ...
September 18, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28911214/growth-regulation-by-estrogen-in-breast-cancer-1-greb1-is-a-novel-progesterone-responsive-gene-required-for-human-endometrial-stromal-decidualization
#3
Alison J Camden, Maria M Szwarc, Sangappa B Chadchan, Francesco J DeMayo, Bert W O'Malley, John P Lydon, Ramakrishna Kommagani
STUDY QUESTION: Is Growth Regulation by Estrogen in Breast Cancer 1 (GREB1) required for progesterone-driven endometrial stromal cell decidualization? SUMMARY ANSWER: GREB1 is a novel progesterone-responsive gene required for progesterone-driven human endometrial stromal cell (HESC) decidualization. WHAT IS KNOWN ALREADY: Successful establishment of pregnancy requires HESCs to transform from fibroblastic to epithelioid cells in a process called decidualization...
September 1, 2017: Molecular Human Reproduction
https://www.readbyqxmd.com/read/28911141/glucagon-decreases-igf-1-bioactivity-in-humans-independently-of-insulin-by-modulating-its-binding-proteins
#4
Zeinab Sarem, Christiane Bumke-Vogt, Ayman M Mahmoud, Biruhalem Assefa, Martin O Weickert, Aikatarini Adamidou, Volker Bähr, Jan Frystyk, Matthias Möhlig, Joachim Spranger, Stefanie Lieske, Andreas L Birkenfeld, Andreas F H Pfeiffer, Ayman M Arafat
Context: Depending on its lipolytic activity, glucagon plays a promising role in obesity treatment. Glucagon-induced growth hormone (GH) release can promote its effect on lipid metabolism, although the underlying mechanisms have not been well-defined. Objective: The present study highlights the glucagon effect on the GH/insulinlike growth factor 1 (IGF-1)/IGF-binding protein (IGFBP) axis in vivo and in vitro, taking into consideration insulin as a confounding factor...
September 1, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28900330/role-of-insulin-like-growth-factor-insulin-like-growth-factor-receptors-and-insulin-like-growth-factor-binding-proteins-in-ovarian-cancer
#5
REVIEW
Periyasamy Amutha, Thangarajan Rajkumar
Insulin and IGFs play an important role in cancer initiation and progression, including ovarian cancer (OC). Epithelial ovarian cancer (EOC) is the most frequent type of OC in women and it is the most lethal gynecological malignancy worldwide. Generally, insulin is associated with metabolism, whereas Insulin like growth factors (IGFs) are involved in cell proliferation. Hence, Insulin-like growth factor binding proteins (IGFBPs) determines the bioavailability of IGFs in circulation. The interplay between these molecules such as insulin, IGFs, IGFBPs and insulin-like growth factor receptor 1 (IGF1R) may be crucial for ovarian cancer cell biology and cancer progression...
April 2017: Indian Journal of Medical and Paediatric Oncology
https://www.readbyqxmd.com/read/28900071/a-case-of-non-islet-cell-tumor-hypoglycemia-nicth-associated-with-gastrointestinal-stromal-tumor-gist
#6
John M Wilson, Jessica Ginsberg, Karen Cutts, Steve Urban
BACKGROUND Non-islet cell tumor hypoglycemia (NICTH) is a newly recognized, but uncommon, paraneoplastic syndrome that is associated with tumors of mesenchymal origin. We report a case of NICTH associated with a gastrointestinal stromal tumor (GIST). CASE REPORT A 60-year-old man presented to the emergency department of our hospital after being found unconscious in his home. His serum blood glucose on hospital admission was 40 mg/dL. He reported a three-month history of diffuse abdominal pain, fatigue, and blurred vision...
September 13, 2017: American Journal of Case Reports
https://www.readbyqxmd.com/read/28886098/molecular-and-biochemical-responses-of-hypoxia-exposure-in-atlantic-croaker-collected-from-hypoxic-regions-in-the-northern-gulf-of-mexico
#7
Md Saydur Rahman, Peter Thomas
A major impact of global climate change has been the marked increase worldwide in the incidence of coastal hypoxia (dissolved oxygen, DO<2.0 mg l-1). However, the extent of hypoxia exposure to motile animals such as fish collected from hypoxic waters as well as their molecular and physiological responses to environmental hypoxia exposure are largely unknown. A suite of potential hypoxia exposure biomarkers was evaluated in Atlantic croaker collected from hypoxic and normoxic regions in the northern Gulf of Mexico (nGOM), and in croaker after laboratory exposure to hypoxia (DO: 1...
2017: PloS One
https://www.readbyqxmd.com/read/28880400/effects-of-ivermectin-and-its-combination-with-alpha-lipoic-acid-on-expression-of-igfbp-3-and-hspa1-genes-and-male-rat-fertility
#8
Z K El-Maddawy, W S H Abd El Naby
This study was conducted to evaluate the effects of ivermectin (IVM) with therapeutic dose (injected with 0.56 mg/kg b.wt.) either alone or combined with alpha lipoic acid (ALA) (50 mg/kg b.wt daily) on expression of testicular insulin-like growth factor binding protein-3 (IGFBP-3) and heat-shock protein A1 (HSPA1)) genes in the testes, as well as on male rat fertility parameters. Results revealed that expression levels of IGFBP-3 and HSPA1 were significantly increased in testis of the IVM-treated group relative to the control group...
September 7, 2017: Andrologia
https://www.readbyqxmd.com/read/28864782/ozone-oil-promotes-wound-healing-by-increasing-the-migration-of-fibroblasts-via-pi3k-akt-mtor-signaling-pathway
#9
Weirong Xiao, Hua Tang, Meng Wu, Yangying Liao, Ke Li, Lan Li, Xiaopeng Xu
Background: Skin injury affects millions of people via the uncontrolled inflammation and infection. Many cellular components including fibroblasts and signaling pathways such as TGF-β were activated to facilitate the wound healing to repair injured tissues. Methods and Results: C57BL/6 female mice were divided into control and ozone oil treated groups. Excisional wounds were created on the dorsal skin and the fibroblasts were isolated from granulation tissues. The skin injured mouse model revealed that ozone oil could significantly decrease the wound area and accelerate wound healing compared with control group...
September 1, 2017: Bioscience Reports
https://www.readbyqxmd.com/read/28864349/insulin-like-growth-factor-binding-protein-1-igfbp-1-upregulated-by-helicobacter-pylori-and-is-associated-with-gastric-cancer-cells-migration
#10
Caifeng Luo, Fengying Sun, Hong Zhu, Ying Ni, Jian Fang, Yun Liu, Shihe Shao, Hongxing Shen, Jianpeng Hu
Insulin-like growth factor binding protein-1 (IGFBP-1), a secreted protein, implicated of various cells in mediating the proliferation, migration, invasion, adhesion, survival and so on. In this study, we assessed the expression and release of IGFBP-1 from gastric cancer cells with H. pylori 26695 infection and the biological functions of IGFBP-1 in gastric cancer cells. The results showed that the expression and release of IGFBP-1 were increased in gastric cancer cells (MGC-803, BGC-823, SGC-7901) infected with H...
August 25, 2017: Pathology, Research and Practice
https://www.readbyqxmd.com/read/28864290/bone-marrow-derived-mesenchymal-stem-cells-regress-aortic-aneurysm-via-the-nf-kb-smad3-and-akt-signaling-pathways
#11
Aika Yamawaki-Ogata, Hideki Oshima, Akihiko Usui, Yuji Narita
BACKGROUND AIMS: We have confirmed that aortic aneurysm (AA) can be regressed by the administration of bone marrow-derived mesenchymal stem cells (BM-MSCs). We investigated the kinetics of signaling pathways in AA following treatment with BM-MSCs. METHODS: Angiotensin II-infused apolipoprotein E-deficient mice were treated by intravenous injection of 1 × 10(6) BM-MSCs in 0.2 mL saline (BM-MSCs group, n = 5) or 0.2 mL saline (saline group, n = 5)...
August 30, 2017: Cytotherapy
https://www.readbyqxmd.com/read/28841464/the-role-of-insulin-growth-factor-1-on-the-vascular-regenerative-effect-of-maa-coated-disks-and-macrophage-endothelial-cell-crosstalk
#12
Ilana Talior-Volodarsky, Redouan Mahou, David Zhang, Michael Sefton
The IGF-1 signaling pathway and IGF-1-dependent macrophage/endothelial cell crosstalk was found to be critical features of the vascular regenerative effect displayed by implanted methacrylic acid -co-isodecyl acrylate (MAA-co-IDA; 40% MAA) coated disks in CD1 mice. Inhibition of IGF-1 signaling using AG1024 an IGF1-R tyrosine kinase inhibitor abrogated vessel formation 14 days after disk implantation in a subcutaneous pocket. Explanted tissue had increased arginase 1 expression and reduced iNOS expression consistent with the greater shift from "M1" ("pro-inflammatory") macrophages to "M2" ("pro-angiogenic") macrophages for MAA coated disks relative to control MM (methyl methacrylate-co-IDA) disks; the latter did not generate a vascular response and the polarization shift was muted with AG1024...
August 17, 2017: Biomaterials
https://www.readbyqxmd.com/read/28835592/importin-%C3%AE-importin-%C3%AE-complex-mediated-nuclear-translocation-of-insulin-like-growth-factor-binding-protein-5
#13
Min Sun, Juan Long, Yuxin Yi, Wei Xia
Insulin-like growth factor-binding protein (IGFBP)-5 is a secreted protein that binds to IGFs and modulates IGF actions, as well as regulates cell proliferation, migration, and apoptosis independent of IGF. Proper cellular localization is critical for the effective function of most signaling molecules. In previous studies, we have shown that the nuclear IGFBP-5 comes from ER-cytosol retro-translocation. In this study, we further investigated the pathway mediating IGFBP-5 nuclear import after it retro-translocation...
August 23, 2017: Endocrine Journal
https://www.readbyqxmd.com/read/28832524/understanding-insulin-endocrinology-in-decapod-crustacea-molecular-modelling-characterization-of-an-insulin-binding-protein-and-insulin-like-peptides-in-the-eastern-spiny-lobster-sagmariasus-verreauxi
#14
Jennifer C Chandler, Neha S Gandhi, Ricardo L Mancera, Greg Smith, Abigail Elizur, Tomer Ventura
The insulin signalling system is one of the most conserved endocrine systems of Animalia from mollusc to man. In decapod Crustacea, such as the Eastern spiny lobster, Sagmariasus verreauxi (Sv) and the red-claw crayfish, Cherax quadricarinatus (Cq), insulin endocrinology governs male sexual differentiation through the action of a male-specific, insulin-like androgenic gland peptide (IAG). To understand the bioactivity of IAG it is necessary to consider its bio-regulators such as the insulin-like growth factor binding protein (IGFBP)...
August 23, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28828208/protein-microarray-analysis-identifies-key-cytokines-associated-with-malignant-middle-cerebral-artery-infarction
#15
Zhonghe Zhou, Jinghua Zhang, Xiaoqiu Li, Cheng Xia, Yaling Han, Huisheng Chen
INTRODUCTION: We aimed to explore potential cytokines involved in the malignant middle cerebral artery infarction (MMI) and elucidate their underlying regulatory mechanisms. METHODS: We first developed a cytokine profile by Quantibody(®) Human Cytokine Antibody Array7000 using serum samples from eight patients with MMI and eight patients with non-acute cerebral infarction (NACI). The differentially expressed cytokines were then identified in patients with MMI using two-tailed Student's t-test and Fisher's Exact Test compared with patients with NACI...
August 2017: Brain and Behavior
https://www.readbyqxmd.com/read/28810880/nlrp7-contributes-to-in-vitro-decidualization-of-endometrial-stromal-cells
#16
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/28800636/combined-sprint-and-resistance-training-abrogates-age-differences-in-somatotropic-hormones
#17
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/28796252/microrna-34-449-targets-igfbp-3-and-attenuates-airway-remodeling-by-suppressing-nur77-mediated-autophagy
#18
Huiming Yin, Shu Zhang, Yahong Sun, Sha Li, Yunye Ning, Yuchao Dong, Yan Shang, Chong Bai
Autophagy plays critical roles in airway inflammation and fibrosis-mediated airway remodeling and many factors including proinflammatory cytokines and inflammation related pathways are involved in the process. The aim of the present study was to examine the role of epithelial microRNAs (miRNAs) in autophagy-mediated airway remodeling and to identify the factors involved and the underlying mechanisms. Serum miR-34/449, inflammatory factors, and autophagy and fibrosis-related proteins were determined by real-time PCR, enzyme-linked immunosorbent assay and western blotting in 46 subjects with asthma and 10 controls and in the lung epithelial cell line BEAS-2B induced with IL-13 and treated with miRNA mimics...
August 10, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28793284/growth-hormone-therapy-in-children-with-kabuki-syndrome-1-year-treatment-results
#19
Dina A Schott, Willem J M Gerver, Constance T R M Stumpel
BACKGROUND/AIMS: Kabuki syndrome (KS) is a rare genetic malformation syndrome, resulting in characteristic features such as short stature. We investigate whether growth hormone (GH) treatment increases linear height and influences body proportions in KS children. METHODS: In this prospective study, 18 genetically confirmed prepubertal KS children (9 females and 9 males) aged from 3.8 to 10.1 years (mean 6.8 ± 2.1 years) were treated with recombinant human GH (rhGH) for 1 year...
August 9, 2017: Hormone Research in Pædiatrics
https://www.readbyqxmd.com/read/28782538/circulating-insulin-like-growth-factor-binding-proteins-in-fish-their-identities-and-physiological-regulation
#20
REVIEW
Munetaka Shimizu, Walton W Dickhoff
Insulin-like growth factor binding proteins (IGFBPs) play crucial roles in regulating the availability of IGFs to receptors and prolong the half-lives of IGFs. There are six IGFBPs present in the mammalian circulation with IGFBP-3 being most abundant. In mammals IGFBP-3 is the major carrier of circulating IGFs, facilitated by forming a ternary complex with IGF and an acid-labile subunit (ALS). IGFBP-1 is generally inhibitory to IGF action by preventing it from interacting with its receptors. In teleosts, the third-round of vertebrate whole genome duplication created paralogs of each IGFBP, except IGFBP-4...
October 1, 2017: General and Comparative Endocrinology
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