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https://www.readbyqxmd.com/read/29211121/evolution-of-periodontal-disease-immune-response-and-rank-rankl-opg-system
#1
Fabrício Gibertoni, Meire Ellen Ligia Sommer, Marcelo Augusto Marretto Esquisatto, Maria Esméria Corezola do Amaral, Camila Andrea de Oliveira, Thiago Antônio Moretti de Andrade, Fernanda Aparecida Sampaio Mendonça, Milton Santamaria-Jr, Maíra Felonato
The aim of this study was to evaluate markers of bone loss and immune response present in evolution of periodontal disease. One hundred and two Wistar rats were divided into three animals groups: PD0, without ligation and PD15 days and PD60 days, submitted to ligation placement with a sterile 3-0 silk cord in the cervical region of the upper first molar on both sides. Samples were obtained from the gingival tissue for histomorphometric analysis, immunohistochemical analysis of RANK, RANKL, OPG, characterization of the inflammatory infiltrate, quantification of nitric oxide, MCP-1, RANTES, IP10 chemokines, and expression of the TGF-b1, VEG, and bFGF...
November 2017: Brazilian Dental Journal
https://www.readbyqxmd.com/read/29150918/central-role-of-transforming-ggrowth-factor-type-beta-1-in-skeletal-muscle-dysfunctions-an-update-on-therapeutic-strategies
#2
Johanna Abrigo, Felipe Simon, Daniel Cabrera, Gonzalo Cordova, Capucine Trollet, Claudio Cabello Verrugio
Among the soluble factors that regulate skeletal muscle function, Transforming Growth Factor type Beta 1 (TGF-b1) is one of the most studied. This factor inhibits myogenesis and regeneration by regulating the activity and function of satellite cells (SCs). Indeed, TGF-b has a central role in muscle pathologies in which there is development of fibrosis and/or atrophy of skeletal muscle. Thus, in this review we present the critical and recent antecedents regarding the mechanisms and cellular targets involved in the effects of TGF-b1 in the muscle, in pathological processes such as the inhibition of regeneration, fibrosis and atrophy...
November 16, 2017: Current Protein & Peptide Science
https://www.readbyqxmd.com/read/29127274/effect-of-hydrogen-rich-saline-on-postoperative-intra-abdominal-adhesion-bands-formation-in-mice
#3
Zhong Liu, Sanfang Cheng, Changwei Gu, Honghong Pei, Xin Hong
BACKGROUND Postsurgical peritoneal adhesions (PPAs) are pathologic fibrous bands within the peritoneal cavity. The aim of this study was to investigate the protective effect of hydrogen-rich saline (HRS) on PPAs formation in mice. MATERIAL AND METHODS Adhesions were induced in mice using the cecum rubbing model. The mice were allocated into 4 groups: control sham group without cecum rubbing; PPA group with saline applied intraperitoneally (i.p.) daily after cecum rubbing; PPA+HRS (5) group with 5 ml/kg of HRS applied i...
November 11, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/29116170/injection-of-high-dose-botulinum-toxin-a-leads-to-impaired-skeletal-muscle-function-and-damage-of-the-fibrilar-and-non-fibrilar-structures
#4
Jessica Pingel, Mikkel Schou Nielsen, Torsten Lauridsen, Kristian Rix, Martin Bech, Tine Alkjaer, Ida Torp Andersen, Jens Bo Nielsen, R Feidenhansl
Botulinum-toxin A (BoNT/A) is used for a wide range of conditions. Intramuscular administration of BoNT/A inhibits the release of acetylcholine at the neuromuscular junction from presynaptic motor neurons causing muscle-paralysis. The aim of the present study was to investigate the effect of high dose intramuscular BoNT/A injections (6 UI = 60 pg) on muscle tissue. The gait pattern of the rats was significantly affected 3 weeks after BoNT/A injection. The ankle joint rotated externally, the rats became flat footed, and the stride length decreased after BoNT/A injection...
November 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29092112/early-activation-of-growth-pathways-in-mitral-leaflets-exposed-to-aortic-regurgitation-new-insights-from-an-animal-model
#5
Ons Marsit, Olivier Royer, Marie-Claude Drolet, Marie Arsenault, Jacques Couet, Stéphane Morin, Robert A Levine, Philippe Pibarot, Jonathan Beaudoin
BACKGROUND: Mitral leaflet enlargement in patients with chronic aortic regurgitation (AR) has been identified as an adaptive mechanism potentially able to prevent functional mitral regurgitation (FMR) in response to left ventricular (LV) dilatation. The timing of valve enlargement is not known, and the related mechanisms are largely unexplored. METHODS: AR was induced in 58 rats, and another 54 were used as sham controls. Animals were euthanized at different time points after AR creation (48 h, one week, and three months), and AR severity, FMR and LV dilatation were assessed using echocardiography...
May 2017: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/29059221/reduction-in-skeletal-muscle-fibrosis-of-spontaneously-hypertensive-rats-after-laceration-by-microrna-targeting-angiotensin-ii-receptor
#6
Roberta Sessa Stilhano, Vivian Yochiko Samoto, Leonardo Martins Silva, Gustavo José Pereira, Adolfo Garcia Erustes, Soraya Soubhi Smaili, Sang Won Han
Regeneration of injured skeletal muscles is affected by fibrosis, which can be improved by the administration of angiotensin II (AngII) receptor (ATR) blockers in normotensive animals. However, the role of ATR in skeletal muscle fibrosis in hypertensive organisms has not been investigated yet. The tibialis anterior (TA) muscle of spontaneously hypertensive (SHR) and Wistar rats (WR) were lacerated and a lentivector encoding a microRNA targeting AngII receptor type 1 (At1) (Lv-mirAT1a) or control (Lv-mirCTL) was injected...
2017: PloS One
https://www.readbyqxmd.com/read/28865235/effect-of-electro-acupuncture-on-neuroplasticity-of-spinal-cord-transected-rats
#7
Xuyang Wang, Shiming Ju, Shiwen Chen, Wenwei Gao, Jun Ding, Gan Wang, Heli Cao, Hengli Tian, Xiaoli Li
BACKGROUND This study aimed to evaluate the effects of electro-acupuncture (EA) on neuroplasticity associated with the expressions of neurotrophic factors (NTFs) and their receptors in rats subjected to spinal cord transection (SCT). MATERIAL AND METHODS A total of 144 rats were randomly divided into 3 groups (n=48 per group): sham-operated group, SCT group, and EA (electro-acupuncture) group. Rats in SCT and EA groups received spinal cord transection at T10-T11 vertebral levels. Then, EA group rats received EA treatment...
September 2, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28462385/serotonin-activated-hepatic-stellate-cells-contribute-to-sex-disparity-in-hepatocellular-carcinoma
#8
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
#9
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
#10
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
#11
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
#12
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
#13
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
#14
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
#15
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
#16
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
#17
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
#18
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
#19
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...
December 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
#20
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
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