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https://www.readbyqxmd.com/read/28462385/serotonin-activated-hepatic-stellate-cells-contribute-to-sex-disparity-in-hepatocellular-carcinoma
#1
Qiqi Yang, Chuan Yan, Chunyue Yin, Zhiyuan Gong
BACKGROUND & AIMS: Hepatocellular carcinoma (HCC) occurs more frequently and aggressively in men than in women. Although sex hormones are believed to play a critical role in this disparity, the possible contribution of other factors largely is unknown. We aimed to investigate the role of serotonin on its contribution of sex discrepancy during HCC. METHODS: By using an inducible zebrafish HCC model through hepatocyte-specific transgenic kras(V12) expression, differential rates of HCC in male and female fish were characterized by both pharmaceutical and genetic interventions...
May 2017: Cellular and Molecular Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28339906/interstitial-fibrosis-scored-on-whole-slide-digital-imaging-of-kidney-biopsies-is-a-predictor-of-outcome-in-proteinuric-glomerulopathies
#2
Laura H Mariani, Sebastian Martini, Laura Barisoni, Pietro A Canetta, Jonathan P Troost, Jeffrey B Hodgin, Matthew Palmer, Avi Z Rosenberg, Kevin V Lemley, Hui-Ping Chien, Jarcy Zee, Abigail Smith, Gerald B Appel, Howard Trachtman, Stephen M Hewitt, Matthias Kretzler, Serena M Bagnasco
Background.: Interstitial fibrosis (IF), tubular atrophy (TA) and interstitial inflammation (II) are known determinants of progression of renal disease. Standardized quantification of these features could add value to current classification of glomerulopathies. Methods.: We studied 315 participants in the Nephrotic Syndrome Study Network (NEPTUNE) study, including biopsy-proven minimal change disease (MCD = 98), focal segmental glomerulosclerosis (FSGS = 121), membranous nephropathy (MN = 59) and IgA nephropathy (IgAN = 37)...
February 27, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28338195/tgf-%C3%AE-1-promotes-human-gastric-carcinoma-sgc7901-cells-invasion-by-inducing-autophagy
#3
J Shen, D-S Zhao, M-Z Li
OBJECTIVE: To investigate the role of TGF-b1 in autophagy and invasion ability in human gastric carcinoma cell line SGC7901. MATERIALS AND METHODS: Cultured SGC7901 cells were treated with different concentrations of TGF-b1 for 24 h. The protein expression levels of autophagy relative marker LC3 and Beclin1 were detected by Western blot. The effect of TGF-b1 on invasion ability of SGC7901 cells was detected with transwell method. RESULTS: The results demonstrated that TGF-b1 was able to induced autophagy of SGC7901 cells in a dose-dependent manner...
March 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28320086/antifibrotic-effect-of-diethylcarbamazine-combined-with-hesperidin-against-ethanol-induced-liver-fibrosis-in-rats
#4
Alaa El-Din El-Sayed El-Sisi, Samia Salim Sokar, Abdelhadi Mohamed Shebl, Dina Zakaria Mohamed
Chronic alcohol consumption leads to extracellular matrix hyperplasia and liver fibrosis with a great role of hepatic stellate cell (HSC) activation in this process. The present study was designed to investigate the possible protective effects of diethylcarbamazine (DEC) (50mg/kg, acting as an anti-inflammatory drug, interferes with the arachidonic acid metabolism) when administrated in combination with hesperidin (HDN) (200mg/kg, a flavanone glycoside with potent antioxidant and anti-inflammatory activities) against alcoholic liver fibrosis in wistar rats compared to silymarin (Sil) (100mg/kg)...
May 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28319415/transforming-growth-factor-beta-1-an-important-biomarker-for-developing-cardiovascular-diseases-in-chronic-renal-failure
#5
E Avci, G Alp Avci, B Ozcelik, S Coskun Cevher, M Suicmez
OBJECTIVE: Our study focuses on the determination and evaluation of TGF-β1 levels of patients receiving hemodialysis treatment because of chronic renal failure. BACKGROUND: Chronic renal failure, characterized by irreversible loss of renal function, is a major public health problem in the world. Transforming growth factor-beta is a multifunctional cytokine involved in the cellular growth, differentiation, migration, apoptosis and immune regulation. Among the three TGF-β isoforms, TGF-β1 plays a key role in the pathogenesis of renal diseases...
2017: Bratislavské Lekárske Listy
https://www.readbyqxmd.com/read/28188148/analysis-of-sphingolipids-in-human-corneal-fibroblasts-from-normal-and-keratoconus-patients
#6
Hui Qi, Shrestha Priyadarsini, Sarah E Nicholas, Akhee Sarker-Nag, Jeremy Allegood, Charles E Chalfant, Nawajes A Mandal, Dimitrios Karamichos
The pathophysiology of human keratoconus (KC), a bilateral progressive corneal disease leading to protrusion of the cornea, stromal thinning, and scarring, is not well-understood. In this study, we investigated a novel sphingolipid (SPL) signaling pathway through which KC may be regulated. Using human corneal fibroblasts (HCFs) and human KC cells (HKCs), we examined the SPL pathway modulation. Both cell types were stimulated by the three transforming growth factor (TGF)-β isoforms: TGF-β1 (T1), TGF-β2 (T2), and TGF-β3 (T3)...
April 2017: Journal of Lipid Research
https://www.readbyqxmd.com/read/28122309/icariin-influences-adipogenic-differentiation-of-stem-cells-affected-by-osteoblast-osteoclast-co-culture-and-clinical-research-adipogenic
#7
Shuncong Zhang, Pengbo Feng, Guoye Mo, Daxing Li, Yongxian Li, Ling Mo, Zhidong Yang, De Liang
OBJECTIVE: To build mouse osteoblast MC3T3-E1 and mouse osteoclast RAW264.7 co-culture system and to study the effect of icariin on the activity of osteoblasts and osteoclasts in the co-culture system. METHODS: In vitro acquisition and cultivation of mouse osteoblasts MC3T3-E1 and mouse RAW264.7 cells were conducted. Osteoblast and osteoclast activities of cells were detected by CCK-8 staining experiment, alizarin red staining and tartaric-resistant acid phosphatase (TRAP) staining...
April 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28001241/effect-of-edta-on-tgf-%C3%AE-1-released-from-the-dentin-matrix-and-its-influence-on-dental-pulp-stem-cell-migration
#8
Lidiany Freitas Gonçalves, Ana Paula Fernandes, Leopoldo Cosme-Silva, Fabio Antonio Colombo, Natália Silva Martins, Thais Marchini Oliveira, Tomaz Henrique Araujo, Vivien Thiemy Sakai
Bioactive molecules stored in dentin, such as transforming growth factor beta1 (TGF-b1), may be involved in the signaling events related to dental tissue repair. The authors conducted an in vitro evaluation of the amount of TGF-b1 released from dentin slices after treatment with 10% ethylenediaminetetraacetic acid (EDTA), 2.5% sodium hypochlorite (NaOCl) or phosphate-buffered saline (PBS), and the effect of this growth factor on stem cell migration from human exfoliated deciduous teeth (SHED). Sixty 1-mm-thick tooth slices were prepared with or without the predentin layer, and treated with either 10% EDTA for 1 minute, 2...
December 22, 2016: Brazilian Oral Research
https://www.readbyqxmd.com/read/27941074/cartilage-rings-contribute-to-the-proper-embryonic-tracheal-epithelial-differentiation-metabolism-and-expression-of-inflammatory-genes
#9
Gianluca Turcatel, Katelyn Millette, Matthew Thornton, Stephanie Leguizamon, Brendan Grubbs, Wei Shi, David Warburton
The signaling cross talk between the tracheal mesenchyme and epithelium has not been researched extensively, leaving a substantial gap of knowledge in the mechanisms dictating embryonic development of the proximal airways by the adjacent mesenchyme. Recently, we reported that embryos lacking mesenchymal expression of Sox9 did not develop tracheal cartilage rings and showed aberrant differentiation of the tracheal epithelium. Here, we propose that tracheal cartilage provides local inductive signals responsible for the proper differentiation, metabolism, and inflammatory status regulation of the tracheal epithelium...
February 1, 2017: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/27672072/the-role-of-the-tgf-smad-signalling-pathway-in-the-etiopathogenesis-of-severe-asthma
#10
REVIEW
Marcelina Koćwin, Mateusz Jonakowski, Marcelina Przemęcka, Jan Zioło, Michał Panek, Piotr Kuna
Asthma is a chronic inflammatory heterogeneous disease of the lower respiratory tract characterised by the occurrence of bronchial hyper-responsiveness and paroxysmal, changeable bronchial obstruction. Transforming growth factor-beta (TGF-b) is one of the cytokines involved in mediating airway inflammation and remodelling. The level of TGF-b1 gene expression correlates with severity of symptoms. Alterations in the main SMAD signal transmission, overexpression of TGF-b genes and changes in the transcriptome cause excessive secretion of TGF-b and its increased expression in target cells, which clinically induces a moderate-severe or severe course of asthma as well as an earlier and faster disease progression...
2016: Pneumonologia i Alergologia Polska
https://www.readbyqxmd.com/read/27663628/clinical-significance-of-high-levels-of-survivin-and-transforming-growth-factor-beta-1-proteins-in-aqueous-humor-and-serum-of-retinoblastoma-patients
#11
Hanan Hussein Shehata, Azza Hassan Abou Ghalia, Eman Khairy Elsayed, Azza Mohamed Ahmed Said, Safaa Saleh Mohamed
PURPOSE: To evaluate the diagnostic and prognostic values of survivin and transforming growth factor beta-1 (TGF-B1) expression in aqueous humor and serum of retinoblastoma (RB) in comparison to the conventional RB marker lactate dehydrogenase (LDH) and to elucidate a possible correlation between them and the clinicopathological features of the disease. METHODS: This prospective, comparative study included 88 newly diagnosed children with RB and 80 age-matched controls with ophthalmic conditions other than tumors prepared for intraocular surgeries...
September 20, 2016: Journal of AAPOS: the Official Publication of the American Association for Pediatric Ophthalmology and Strabismus
https://www.readbyqxmd.com/read/27576175/the-paracrine-immunomodulatory-interactions-between-the-human-dental-pulp-derived-mesenchymal-stem-cells-and-cd4-t-cell-subsets
#12
Alper Tunga Özdemir, Rabia Bilge Özgül Özdemir, Cengiz Kırmaz, Ayla Eker Sarıboyacı, Zehra Seda Ünal Halbutoğlları, Ceren Özel, Erdal Karaöz
Mesenchymal stem cells (MSCs) have strong immunomodulatory properties, however these properties may show some differences according to the tissue type of their isolate. In this study we investigated the paracrine interactions between human DP derived MSCs (hDP-MSCs) and the CD4(+) T helper cell subsets to establish their immunomodulatory mechanisms. We found that the CD4(+)-Tbet(+) (Th1) and CD4(+)-Gata3(+) (Th2) cells were suppressed by the hDP-MSCs, but the CD4(+)-Stat3(+) (Th17) and CD4(+)-CD25(+)-FoxP3(+) (Treg) cells were stimulated...
August 24, 2016: Cellular Immunology
https://www.readbyqxmd.com/read/27563222/protective-effects-of-silymarin-alone-or-in-combination-with-chlorogenic-acid-and-or-melatonin-against-carbon-tetrachloride-induced-hepatotoxicity
#13
Nouf Al-Rasheed, Laila Faddah, Nawal Al-Rasheed, Yieldez A Bassiouni, Iman H Hasan, Ayman M Mahmoud, Raeesa A Mohamad, Hazar I Yacoub
OBJECTIVE: The aim of this study was to evaluate the hepatoprotective effects of silymarin (SIL), alone and combined with chlorogenic acid (CA) and/or melatonin (ME), using a rat model of carbon tetrachloride (CCl4)-induced injury. MATERIALS AND METHODS: Hepatotoxicity was induced by a single dose of CCl4 (1 ml/kg, IP). One day after, rats were received SIL (200 mg/kg) alone or in combination with CA (60 mg/kg) and/or ME (20 mg/kg) for 21 days. RESULTS: SIL significantly decreased serum alanine aminotransferase, inflammatory cytokines, and vascular endothelial growth factor levels...
May 2016: Pharmacognosy Magazine
https://www.readbyqxmd.com/read/27326466/an-update-on-the-up-and-coming-therapies-to-treat-osteoarthritis-a-multifaceted-disease
#14
REVIEW
Jorge A Roman-Blas, Emanuele Bizzi, Raquel Largo, Alberto Migliore, Gabriel Herrero-Beaumont
INTRODUCTION: The lack of a complete understanding of the complex processes involved in the etiopathogenesis and subsequent appropriate phenotyping makes it difficult to find therapies that may be efficacious in most patients with osteoarthritis (OA). Consensus recommendations involve mainly non-pharmacological approaches. Analgesics and NSAIDs are considered second choice options due to their poor efficacy/safety ratios. To some extent, OA may be considered an orphan disease. Therefore, there is an urgent need to identify effective and safe new pharmacologic modalities for treating OA...
September 2016: Expert Opinion on Pharmacotherapy
https://www.readbyqxmd.com/read/27200395/temporal-and-spatial-expression-of-tgf-b1-in-the-early-phase-of-patellar-tendon-healing-after-application-of-platelet-rich-plasma
#15
Dimitris N Lyras, Konstantinos Kazakos, Konstantinos Tilkeridis, Anna Kokka, Athanasios Ververidis, Sotirios Botaitis, George Agrogiannis
BACKGROUND: The aim of this study is to find out the spatial and temporal expression of TGF-b1 during the tendon healing, after application of Platelet Rich Plasma (PRP). METHODS: A patellar tendon defect model in rabbits was used for this purpose. 48 skeletally mature New Zealand White rabbits, weighing 3.5 kg, were used for this study. Equal numbers of animals from both groups were sacrificed at 4 different time points (1st, 2nd, 3rd, and 4th week). A full thickness patellar tendon substance in the right limb of each animal was excised from its central portion during the operation...
April 2016: Archives of Bone and Joint Surgery
https://www.readbyqxmd.com/read/27054781/mir-206-attenuates-denervation-induced-skeletal-muscle-atrophy-in-rats-through-regulation-of-satellite-cell-differentiation-via-tgf-%C3%AE-1-smad3-and-hdac4-signaling
#16
Qiang Kai Huang, Hu-Yuan Qiao, Ming-Huan Fu, Gang Li, Wen-Bin Li, Zhi Chen, Jian Wei, Bing-Sheng Liang
BACKGROUND Denervation-induced skeletal muscle atrophy results in significant biochemical and physiological changes potentially leading to devastating outcomes including increased mortality. Effective treatments for skeletal muscle diseases are currently not available. Muscle-specific miRNAs, such as miR-206, play an important role in the regulation of muscle regeneration. The aim of the present study was to examine the beneficial effects of miR-206 treatment during the early changes in skeletal muscle atrophy, and to study the underlying signaling pathways in a rat skeletal muscle atrophy model...
April 7, 2016: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/27050993/protective-effect-of-the-n-butanol-toona-sinensis-seed-extract-on-diabetic-nephropathy-rat-kidneys
#17
W Z Li, X H Wang, H X Zhang, S M Mao, C Z Zhao
The objective of this study was to observe the protective effect of the n-butyl alcohol phase of Toona sinensis seed extract on the kidneys of diabetic nephropathy (DN) rats and its preliminary mechanism. Male wistar rats were administered a normal or high-fat diet for 1 month. DN rats were divided into a model group and a petroleum ether phase of T. sinensis seed extract intervention group. The intervention group was administered 5 mg·100 g-1·day-1 extract. After treatment for 10 weeks, the rats were sacrificed and blood samples and the renal cortex were collected...
March 24, 2016: Genetics and Molecular Research: GMR
https://www.readbyqxmd.com/read/26922982/hiv-1-gp120-impairs-the-differentiation-and-survival-of-cord-blood-cd34-hpcs-induced-to-the-erythroid-lineage
#18
Silvia Morini, Giuseppina Musumeci, Isabella Bon, Anna Miserocchi, Francesco Alviano, Serena Longo, Alessia Bertoldi, Claudio V Velati, Davide Gibellini, Maria Carla Re
Anemia is the most common hematological abnormality in human immunodeficiency virus (HIV)-infected patients. Besides chronic disease, opportunistic infections, nutritional deficiencies and antiretroviral drug toxicity, the direct role of HIV in the development of anemia has not yet been fully investigated. To explore the HIV-related mechanisms involved in the genesis of anemia, we used two experimental designs. In the first, HPCs purified from cord blood were challenged with HIV-1IIIb or recombinant gp120 (rgp120) and then committed to erythrocyte differentiation (EPO-post-treated HPCs)...
January 2016: New Microbiologica
https://www.readbyqxmd.com/read/26571153/alleviative-effect-of-myricetin-on-ochratoxin-a-induced-oxidative-stress-in-rat-renal-cortex-histological-and-biochemical-study
#19
Manal R Abdel El-Haleem, Asmaa A A Kattaia, Samia A Abdel El-Baset, Heba El Sayed Mostafa
Ochratoxins (OTA) are secondary metabolites of Aspergillus and Penicillium. The detoxification of OTA has been of major interest due to its widespread threat to human health. We aimed to investigate the possible alleviative effect of myricetin (MYR) against OTA-induced damage in renal cortex of rats. Thirty adult male albino rats were randomized into five equal groups: control (untreated), vehicle control (0.5 ml corn oil/day including dimethylsulfoxide [DMSO]), MYR (100 mg MYR/kg b.w./day in distilled water), OTA (0...
April 2016: Histology and Histopathology
https://www.readbyqxmd.com/read/26481592/periodontal-tissue-regeneration-with-prp-incorporated-gelatin-hydrogel-sponges
#20
Dai Nakajima, Yasuhiko Tabata, Soh Sato
Gelatin hydrogels have been designed and prepared for the controlled release of the transforming growth factor (TGF-b1) and the platelet-derived growth factor (PDGF-BB). PRP (Platelet rich plasma) contains many growth factors including the PDGF and TGF-b1. The objective of this study was to evaluate the regeneration of periodontal tissue following the controlled release of growth factors in PRP. For the periodontal ligament cells and osteoblast, PRP of different concentrations was added. The assessment of DNA, mitochondrial activity and ALP activity were measured...
September 2015: Biomedical Materials
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