keyword
MENU ▼
Read by QxMD icon Read
search

"Insulin-Like Growth Factor"

keyword
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
#1
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/28919726/gene-expression-levels-of-the-insulin-like-growth-factor-family-in-patients-with-amd-before-and-after-ranibizumab-intravitreal-injections
#2
Barbara Strzalka-Mrozik, Malgorzata Kimsa-Furdzik, Adam Kabiesz, Katarzyna Michalska-Malecka, Malgorzata Nita, Urszula Mazurek
PURPOSE: The present study focused on the assessment of the mRNA levels of the insulin-like growth factor (IGF) family in patients with the exudative form of age-related macular degeneration (AMD) before and after ranibizumab intravitreal injections. PATIENTS AND METHODS: An analysis of the expression profile of the IGF family of genes in patients with AMD was carried out using the oligonucleotide microarray and quantitative reverse transcriptase polymerase chain reaction (RT-qPCR) methods...
2017: Clinical Interventions in Aging
https://www.readbyqxmd.com/read/28918148/mammalian-target-of-rapamycin-signaling-and-ubiquitin-proteasome-related-gene-expression-in-3-different-skeletal-muscles-of-colostrum-versus-formula-fed-calves
#3
H Sadri, J Steinhoff-Wagner, Harald M Hammon, R M Bruckmaier, S Görs, H Sauerwein
The rates of protein turnover are higher during the neonatal period than at any other time in postnatal life. The mammalian target of rapamycin (mTOR) and the ubiquitin-proteasome system are key pathways regulating cellular protein turnover. The objectives of this study were (1) to elucidate the effect of feeding colostrum versus milk-based formula on the mRNA abundance of key components of the mTOR pathway and of the ubiquitin-proteasome system in skeletal muscle of neonatal calves and (2) to compare different muscles...
September 13, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28917652/tilapia-adropin-the-localization-and-regulation-of-growth-hormone-gene-expression-in-pituitary-cells
#4
JianPeng Peng, Ping Yang, Qianli Zhang, Quan Jiang
The peptide hormone adropin, encoded by the energy homeostasis-associated (Enho) gene, plays a role in energy homeostasis and the control of vascular function. The aim of this study was to examine the role of adropin in growth hormone (GH) gene expression at the pituitary level in tilapia. As a first step, the antiserum for the tilapia adropin was produced, and its specificity was confirmed by antiserum preabsorption and immunohistochemical staining in the tilapia pituitary. Adropin could be detected immunocytochemically in the proximal pars distalis (PPD) of the tilapia pituitary...
September 13, 2017: Peptides
https://www.readbyqxmd.com/read/28916740/mad2b-acts-as-a-negative-regulatory-partner-of-tcf4-on-proliferation-in-human-dermal-papilla-cells
#5
Nanlan Yu, Zhiqiang Song, Kezhou Zhang, Xichuan Yang
Dermal papilla cells (DPCs) are important components of hair follicles and play a critical role in hair follicle development. However, the mechanisms by which DPCs induce hair follicle development remain unclear. In the present study, we identified the mitotic arrest deficient protein MAD2B as a modifier of DPCs. Overexpression of MAD2B inhibited DPC aggregative growth and proliferation induced by the Wnt signaling activator T cell factor 4 (TCF4), and decreased TCF4-induced expression and the release of hair growth-related cytokines, including hepatocyte growth factor, insulin-like growth factor-1, and vascular endothelial growth factor in DPCs...
September 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28916632/tissue-sex-and-age-specific-dna-methylation-of-rat-glucocorticoid-receptor-gene-promoter-and-insulin-like-growth-factor-2-imprinting-control-region
#6
Ogechukwu Brenda Agba, Ludwig Lausser, Klaus Huse, Christoph Bergmeier, Niels Jahn, Marco Groth, Martin Bens, Arne Sahm, Maria Gall, Otto W Witte, Hans A Kestler, Matthias Schwab, Matthias Platzer
Tissue-, sex- and age-specific epigenetic modifications such as DNA methylation are largely unknown. Changes in DNA methylation of the glucocorticoid receptor gene (NR3C1) and imprinting control region (ICR) of IGF2 and H19 genes during the lifespan are particularly interesting since these genes are susceptible to epigenetic modifications by prenatal stress or malnutrition. They are important regulators of development and aging. Methylation changes of NR3C1 affect glucocorticoid receptor expression, which is associated with stress sensitivity and stress-related diseases predominantly occurring during aging...
September 15, 2017: Physiological Genomics
https://www.readbyqxmd.com/read/28915727/the-protein-and-energy-metabolic-response-of-skeletal-muscle-to-the-low-protein-diets-in-growing-pigs
#7
Yinghui Li, Fengna Li, Yehui Duan, Qiuping Guo, Wenlong Wang, Chaoyue Wen, Xingguo Huang, Yulong Yin
This study was conducted to determine the effect of the low-protein diets on protein and energy metabolism in skeletal muscle, and to elucidate the underlying mechanism. A total of 18 growing pigs (average initial body weight = 36.47 kg) were individually penned and assigned to three treatments, each treatment was fed one of three diets containing either 18%, 15%, or 12% CP. The results showed that reducing dietary CP contents decreased (P < 0.05) the weight of half Longissimus dorsi (LD) muscle and serum concentration of insulin-like growth factor 1 (IGF-1)...
September 15, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28915606/proteolytic-cleavages-in-the-extracellular-domain-of-receptor-tyrosine-kinases-by-membrane-associated-serine-proteases
#8
Li-Mei Chen, Karl X Chai
The epithelial extracellular membrane-associated serine proteases matriptase, hepsin, and prostasin are proteolytic modifying enzymes of the extracellular domain (ECD) of the epidermal growth factor receptor (EGFR). Matriptase also cleaves the ECD of the vascular endothelial growth factor receptor 2 (VEGFR2) and the angiopoietin receptor Tie2. In this study we tested the hypothesis that these serine proteases may cleave the ECD of additional receptor tyrosine kinases (RTKs). We co-expressed the proteases in an epithelial cell line with Her2, Her3, Her4, insulin receptor (INSR), insulin-like growth factor I receptor (IGF-1R), the platelet-derived growth factor receptors (PDGFRs) α and β, or nerve growth factor receptor A (TrkA)...
August 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/28912847/identification-of-micrornas-involved-in-gefitinib-resistance-of-non-small-cell-lung-cancer-through-the-insulin-like-growth-factor-receptor-1-signaling-pathway
#9
Wei Ma, Yanhong Kang, Lanlan Ning, Jie Tan, Hanping Wang, Yi Ying
Multiple clinical and experimental studies have suggested that epidermal growth factor receptor tyrosine kinase inhibitors (EGFR-TKIs) may be effective at treating advanced non-small cell lung cancer (NSCLC), however, the molecular basis of primary resistance to EGFR-TKIs in NSCLC remains unclear. In the current study, the insulin-like growth factor 1 receptor (IGF-1R) gene in the gefitinib-resistant human lung adenocarcinoma epithelial cell line A549 (A549/GR) was silenced using small interfering RNA (siRNA) in order to determine the role of microRNA (miRNA) in the development of resistance against epidermal growth factor receptor tyrosine kinase inhibitors (EGFR-TKIs) in lung adenocarcinoma...
October 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28912725/enhanced-strength-and-sprint-levels-and-changes-in-blood-parameters-during-a-complete-athletics-season-in-800-m-high-level-athletes
#10
Beatriz Bachero-Mena, Fernando Pareja-Blanco, Juan J González-Badillo
The purpose of this study was to analyze changes in sprint, strength, hematological, and hormonal parameters in high-level 800 m athletes during a complete athletics season. Thirteen male athletes of national and international level in 800 m (personal best ranging from 1:43 to 1:58 min:ss) participated in this study. A total of 5 tests were conducted during a complete athletics season. Athletes performed sprint tests (20 and 200 m), countermovement jump (CMJ), jump squat (JS), and full squat (SQ) tests. Blood samples (red and white blood profile) and hormones were collected in test 1 (T1), test 3 (T3), and test 5 (T5)...
2017: Frontiers in Physiology
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
#11
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/28911149/insulin-like-growth-factor-bioactivity-stanniocalcin-2-pregnancy-associated-plasma-protein-a-and-igf-binding-protein-4-in-pleural-fluid-and-serum-from-patients-with-pulmonary-disease
#12
Ulrick Skipper Espelund, Mette Bjerre, Rikke Hjortebjerg, Torben Riis Rasmussen, Anders Lundby, Andreas Hoeflich, Birgitte Holst Folkersen, Claus Oxvig, Jan Frystyk
Context: Members of the insulin-like growth factor (IGF) system are primarily produced in the liver and secreted into the circulation, but they are also produced, recruited, and activated locally in tissues. Objective: To compare activity and concentrations of IGF system components in pleural fluid and blood. Design: Pathological pleural fluid, secondary to lung cancer or nonmalignant disease, and matching blood samples were collected from 24 patients ages 66...
September 1, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28905319/pi3k-inhibition-protects-mice-from-nafld-by-down-regulating-cmklr1-and-nlrp3-in-kupffer-cells
#13
Wenfeng Zhang, Yan Liu, Mingbing Wu, Xiwen Zhu, Tao Wang, Kun He, Peizhi Li, Xiaoling Wu
Inflammation induced by high-fat diet (HFD) is of critical importance in the development of hepatic steatosis. The role of chemerin in the progress of nonalcoholic fatty liver disease (NAFLD) remains controversial. Here, we have evaluated the effects and mechanism of chemerin on insulin sensitivity and inflammation. An inhibitor (wortmannin) and agonist (insulin-like growth factor 1 (IGF-1) of phosphatidyl inositol 3-kinase (PI3K) were applied to Kupffer cells (KCs) after treatment with a concentration gradient of chemerin in vitro...
September 13, 2017: Journal of Physiology and Biochemistry
https://www.readbyqxmd.com/read/28904276/a-case-of-acromegaly-in-which-a-pituitary-gland-tumor-was-reduced-significantly-by-administering-octreotide-long-acting-release-lar-and-could-be-removed-surgically
#14
Tadashi Arao, Yosuke Okada, Fumi Uemura, Shigeru Nishizawa, Yoshiya Tanaka
A 54-year-old woman was admitted to our hospital for detailed examination of acromegaly because she noticed bilateral hand and finger swelling at the age of 43 and plantar thickening, facial changes and unclear articulation at the age of 49. She had prominent brow ridges, mandibular protrusion, and enlargement of the hands, feet, nasal wings, lips and tongue. Her growth hormone (GH) level was 39.8 ng/ml, insulin-like growth factor-1 (IGF-1) level was 717 ng/ml, GH level was not suppressed (22.9 ng/ml) during a 75-g oral glucose tolerance test (OGTT)...
2017: Journal of UOEH
https://www.readbyqxmd.com/read/28903396/igfbp2-plays-an-important-role-in-heat-shock-protein-27-mediated-cancer-progression-and-metastasis
#15
Chin-Sheng Hung, Chien-Yu Huang, Chia-Hwa Lee, Wei-Yu Chen, Ming-Te Huang, Po-Li Wei, Yu-Jia Chang
Heat shock protein 27 (Hsp27) is a key chaperone that interacts with over 200 client proteins. The expression of Hsp27 might be correlated with poor outcome in many types of cancer. Previous study indicated that Hsp27 might be an important biomarker in hepatocellular carcinoma (HCC). However, the detailed mechanism is less well understood. The shRNA-mediated silencing of Hsp27 decreased the proliferation, migration and invasion of HCC cells. In a xenograft model, the silencing of Hsp27 reduced tumor progression...
August 15, 2017: Oncotarget
https://www.readbyqxmd.com/read/28902870/reduced%C3%A2-insulin-signaling-maintains-electrical-transmission-in-a-neural-circuit-in-aging-flies
#16
Hrvoje Augustin, Kieran McGourty, Marcus J Allen, Sirisha Kudumala Madem, Jennifer Adcott, Fiona Kerr, Chi Tung Wong, Alec Vincent, Tanja Godenschwege, Emmanuel Boucrot, Linda Partridge
Lowered insulin/insulin-like growth factor (IGF) signaling (IIS) can extend healthy lifespan in worms, flies, and mice, but it can also have adverse effects (the "insulin paradox"). Chronic, moderately lowered IIS rescues age-related decline in neurotransmission through the Drosophila giant fiber system (GFS), a simple escape response neuronal circuit, by increasing targeting of the gap junctional protein innexin shaking-B to gap junctions (GJs). Endosomal recycling of GJs was also stimulated in cultured human cells when IIS was reduced...
September 2017: PLoS Biology
https://www.readbyqxmd.com/read/28902627/serum-%C3%AE-klotho-levels-are-not-informative-for-the-evaluation-of-growth-hormone-secretion-in-short-children
#17
Cristina Meazza, Heba H Elsedfy, Randa I Khalaf, Fiorenzo Lupi, Sara Pagani, Mohamed El Kholy, Carmine Tinelli, Giorgio Radetti, Mauro Bozzola
BACKGROUND: α-Klotho is a transmembrane protein that can be cleaved and act as a circulating hormone (s-klotho). s-Klotho serum levels seem to reflect growth hormone (GH) secretory status. We investigated the role of s-klotho as a reliable marker of GH secretion in short children and the factors influencing its secretion. METHODS: We enrolled 40 short Egyptian children (20 GH deficiency [GHD] and 20 idiopathic short stature [ISS]). They underwent a pegvisomant-primed insulin tolerance test (ITT) and were accordingly reclassified as 16 GHD and 24 ISS...
September 13, 2017: Journal of Pediatric Endocrinology & Metabolism: JPEM
https://www.readbyqxmd.com/read/28902430/reduced-serum-igf-1-associated-with-hepatic-osteodystrophy-is-a-main-determinant-of-low-cortical-but-not-trabecular-bone-mass
#18
Zhongbo Liu, Tianzhen Han, Haim Werner, Clifford J Rosen, Mitchell B Schaffler, Shoshana Yakar
Hepatic osteodystrophy is multifactorial in its pathogenesis. Numerous studies have shown that impairments of the hepatic growth hormone/insulin-like growth factor-1 axis (GH/IGF-1) are common in patients with non-alcoholic fatty liver disease, chronic viral hepatitis, liver cirrhosis, and chronic cholestatic liver disease. Moreover these conditions are also associated with low bone mineral density (BMD) and greater fracture risk, particularly in cortical bone sites. Hence, we addressed whether disruptions in the GH/IGF-1 axis were causally related to the low bone mass in states of chronic liver disease using a mouse model of liver-specific GH-receptor (GHR) gene deletion (Li-GHRKO)...
September 13, 2017: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/28902344/insulin-like-growth-factor-1-promotes-the-proliferation-and-odontoblastic-differentiation-of-human-dental-pulp-cells-under-high-glucose-conditions
#19
Lu Yan, Shangmin Sun, Liu Qu
Insulin-like growth factor-1 (IGF-1) promotes human dental pulp stem cell proliferation and osteogenic differentiation. However, the effects of IGF-1 on the proliferation, apoptosis and odontoblastic differentiation (mineralization) of dental pulp cells (DPCs) under high glucose (GLU) conditions remain unclear. In this study, isolated primary human DPCs were treated with various concentrations of high GLU. Cell proliferation and apoptosis were determined by Cell Counting Kit-8 and Annexin V-FITC/PI assays, respectively...
September 1, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28901439/long-noncoding-rna%C3%A2-p21-modulates-cellular-senescence-via-the-wnt-%C3%AE-%C3%A2-catenin-signaling-pathway-in-mesenchymal-stem-cells
#20
Wenzheng Xia, Lei Zhuang, Xia Deng, Meng Hou
Mesenchymal stem cell (MSC)‑based therapies have demonstrated efficacy in animal models of cardiovascular diseases. However, MSCs decrease in quantity and quality with age, which reduces their capacity for damage repair. Long noncoding (lnc) RNAs regulate gene transcription and the fate of post‑transcriptional mRNA, affecting a broad range of age‑associated physiological and pathological conditions, including cardiovascular disease and cancer cell senescence. However, the functional role of lncRNAs in stem cell senescence remains largely unknown...
September 7, 2017: Molecular Medicine Reports
keyword
keyword
84371
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"