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https://www.readbyqxmd.com/read/28647730/qiliqiangxin-attenuates-adverse-cardiac-remodeling-after-myocardial-infarction-in-ovariectomized-mice-via-activation-of-ppar%C3%AE
#1
Shutong Shen, Huimin Jiang, Yihua Bei, Jialiang Zhang, Haifeng Zhang, Hongsheng Zhu, Chenlin Zhang, Wenming Yao, Cong Wei, Hongcai Shang, Xinli Li
BACKGROUND/AIMS: This study was designed to investigate the therapeutic effect of traditional Chinese medication Qiliqiangxin (QLQX) on adverse cardiac remodeling after myocardial infarction (MI) in bilateral ovariectomized (OVX) female mice. METHODS: Eight-week old female C57BL/6 mice were operated to ligate the left anterior descending coronary artery seven days after bilateral ovariectomy and were orally administered either QLQX or vehicle. 21 days after ligation, echocardiography was performed to evaluate the heart function of all mice...
June 23, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28642129/fucoxanthin-inhibits-profibrotic-protein-expression-in-vitro-and-attenuates-bleomycin-induced-lung-fibrosis-in-vivo
#2
Sun Young Ma, Won Sun Park, Dae-Sung Lee, Grace Choi, Mi-Jin Yim, Jeong Min Lee, Won-Kyo Jung, Sae Gwang Park, Su-Kil Seo, Sung Jae Park, Il Yong Han, Yung Hyun Choi, Il-Whan Choi
Pulmonary fibrosis, a potentially fatal disease, results from acute and chronic interstitial lung diseases. Fucoxanthin (Fx), a carotenoid found in brown seaweed, shows a wide range of pharmacological activities. In this study, we investigated the antifibrotic effects of fucoxanthin and their underlying molecular mechanisms in transforming growth factor-beta1 (TGF-β1)-stimulated human pulmonary fibroblasts (HPFs). Thus, the effects of Fx on TGF-β1-induced expression of fibrotic factors, such as alpha-smooth muscle actin (α-SMA), type 1 collagen, fibronectin, and interleukin-6 (IL-6), in HPFs were investigated...
June 19, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28634394/the-roles-of-toll-like-receptor-4-in-the-pathogenesis-of-pathogen-associated-biliary-fibrosis-caused-by-clonorchis-sinensis
#3
Chao Yan, Bo Li, Fang Fan, Ying Du, Rui Ma, Xiao-Dan Cheng, Xiang-Yang Li, Bo Zhang, Qian Yu, Yu-Gang Wang, Ren-Xian Tang, Kui-Yang Zheng
Pathogen-associated biliary fibrosis (PABF) is a type of liver fibrosis characterized by injuries of cholangiocytes and extra cellular matrix (ECM) deposition around bile ducts caused by various bacteria, fungi, virus and parasites. Recent studies show that TLR4 plays an important role in several other types of liver fibrosis, but the mechanism of TLR4 in PABF is yet really unclear. In the present study, a PABF mouse model was established by a trematode infection-Clonorchis sinensis which dwells in the bile ducts and causes severe biliary fibrosis of mice...
June 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28626343/anti-osm-antibody-inhibits-tubulointerstitial-lesion-in-a-murine-model-of-lupus-nephritis
#4
Qingjuan Liu, Yunxia Du, Kejun Li, Wei Zhang, Xiaojuan Feng, Jun Hao, Hongbo Li, Shuxia Liu
The purpose of this study was to investigate the role of oncostatin M (OSM) in tubulointerstitial lesion (TIL) in lupus nephritis (LN). We found that OSM was highly expressed in the renal tissue of LN mice. OSM is one of the interleukin-6 cytokine family members. In order to clarify the role and mechanism of OSM in LN, mice with LN were treated with anti-OSM antibody or isotype antibody. We evaluated the tubular epithelial-mesenchymal transdifferentiation (EMT) by detecting the E-cadherin, α-smooth muscle actin (α-SMA), and fibronectin (FN) expression...
2017: Mediators of Inflammation
https://www.readbyqxmd.com/read/28625011/liver-epithelioid-progenitor-cells-derived-from-fetal-luxi-bovine-alleviate-liver-fibrosis
#5
Kunfu Wang, Hao Liu, Jinjuan Yang, Caiyun Ma, Zebiao Zhang, Dong Zheng, Weijun Guan
Liver epithelioid progenitor cells (LEPCs) have important roles in liver therapy because of their hepatic differentiation potency in vitro and in vivo. Despite many researches on humans, mice, and rats, equivalent progenitor cells derived from bovine are relatively rare. The purpose of our current study is to characterize bovine LEPCs, and research on the cure potency of this heteroplastic progenitor cells on mice liver fibrosis. We have used collagenase IV digesting and differential adhesion method to isolate slabstone shape, EpCAM, LGR5, NCAM1 and SOX9 positive progenitor cells from fetal Luxi bovine liver...
June 17, 2017: Cytotechnology
https://www.readbyqxmd.com/read/28624424/fusaric-acid-fa-protects-heart-failure-induced-by-isoproterenol-isp-in-mice-through-fibrosis-prevention-via-tgf-%C3%AE-1-smads-and-pi3k-akt-signaling-pathways
#6
Xin Li, Zhou-Long Zhang, Hui-Fen Wang
Fusaric acid (FA) is a novel compound derived from a class of nicotinic acid derivatives, exhibiting activity against cancers. However, its role in regulating cardiac injury is limited. Our study was aimed to investigate the role and the underlying molecular mechanism of FA in heart fibrosis and hypertrophy. Isoproterenol (ISP) was used to induce cardiac fibrosis and hypertrophy in vitro and in vivo. FA administration ameliorated hypertrophy by reducing atrial natriuretic peptide (ANP), brain natriuretic peptide (BNP), and β -myosin heavy chain (β-MHC) in vitro and in vivo...
June 15, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28624227/efficient-smn-rescue-following-subcutaneous-tricyclo-dna-antisense-oligonucleotide-treatment
#7
Valérie Robin, Graziella Griffith, John-Paul L Carter, Christian J Leumann, Luis Garcia, Aurélie Goyenvalle
Spinal muscular atrophy (SMA) is a recessive disease caused by mutations in the SMN1 gene, which encodes the protein survival motor neuron (SMN), whose absence dramatically affects the survival of motor neurons. In humans, the severity of the disease is lessened by the presence of a gene copy, SMN2. SMN2 differs from SMN1 by a C-to-T transition in exon 7, which modifies pre-mRNA splicing and prevents successful SMN synthesis. Splice-switching approaches using antisense oligonucleotides (AONs) have already been shown to correct this SMN2 gene transition, providing a therapeutic avenue for SMA...
June 16, 2017: Molecular Therapy. Nucleic Acids
https://www.readbyqxmd.com/read/28624215/periostin-binding-dna-aptamer-treatment-ameliorates-peritoneal-dialysis-induced-peritoneal-fibrosis
#8
Bo Young Nam, Jung Tak Park, Young Eun Kwon, Jung Pyo Lee, Jong Ha Jung, Youndong Kim, Seonghun Kim, Jimin Park, Jae Eun Um, Meiyan Wu, Seung Hyeok Han, Tae-Hyun Yoo, Shin-Wook Kang
Peritoneal fibrosis is a major complication in peritoneal dialysis (PD) patients, which leads to dialysis discontinuation. Periostin, increased by transforming growth factor β1 (TGF-β1) stimulation, induces the expression of extracellular matrix (ECM) genes. Aberrant periostin expression has been demonstrated to be associated with PD-related peritoneal fibrosis. Therefore, the effect of periostin inhibition by an aptamer-based inhibitor on peritoneal fibrosis was evaluated. In vitro, TGF-β1 treatment upregulated periostin, fibronectin, α-smooth muscle actin (α-SMA), and Snail expression and reduced E-cadherin expression in human peritoneal mesothelial cells (HPMCs)...
June 16, 2017: Molecular Therapy. Nucleic Acids
https://www.readbyqxmd.com/read/28615446/lysosome-mediated-degradation-of-a-distinct-pool-of-lipid-droplets-during-hepatic-stellate-cell-activation
#9
Maidina Tuohetahuntila, Martijn R Molenaar, Bart Spee, Jos F Brouwers, Richard Wubbolts, Martin Houweling, Cong Yan, Hong Du, Brian C VanderVen, Arie B Vaandrager, J Bernd Helms
Activation of hepatic stellate cells (HSCs) is a critical step in the development of liver fibrosis. During activation, HSCs lose their lipid droplets (LDs) containing triacylglycerols (TAGs), cholesteryl esters (CEs) and retinyl esters (REs). We previously provided evidence for the presence of two distinct LD pools, a pre-existing and a dynamic LD pool. Here we investigate the mechanisms of neutral lipid metabolism in the pre-existing LD pool. To investigate the involvement of lysosomal degradation of neutral lipids, we studied the effect of lalistat, a specific lysosomal acid lipase (LAL/Lipa) inhibitor on LD degradation in HSCs during activation in vitro The LAL-inhibitor increased the levels of TAG, CE and RE in both rat and mouse HSCs...
June 14, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28612087/effects-of-vascular-formation-during-alveolar-bone-process-morphogenesis-in-mice
#10
Seo-Young An, Ye-Ji Lee, Sanjiv Neupane, Jong-Hwa Jun, Ji-Youn Kim, Youngkyun Lee, Karp-Shik Choi, Chang-Hyeon An, Jo-Young Suh, Hong-In Shin, Wern-Joo Sohn, Jae-Young Kim
The alveolar bone process is the thickened ridge of bone that bears the teeth and is known to have dynamic functional interactions with surrounding tissues. However, the detailed morphological changes that occur during alveolar bone process development and the underlying molecular mechanisms behind this morphogenesis have not been elucidated. In this study, we examined the detailed morphological changes of the alveolar bone process during mouse development using HE and MTC staining. In addition, we evaluated the precise localization pattern of various signaling molecules involved in blood vessel formation including CD31, α-SMA, VEGF, periostin, and TGF-β...
June 13, 2017: Histochemistry and Cell Biology
https://www.readbyqxmd.com/read/28603043/tak1-as-the-mediator-in-the-protective-effect-of-propofol-on-renal-interstitial-fibrosis-induced-by-ischemia-reperfusion-injury
#11
Huiping Wu, Jun Zhou, Weiming Ou, Yun Li, Meifang Liu, Chengxiang Yang
Ischemia-reperfusion injury (IRI), which is a major cause of acute and chronic renal dysfunction, induces both apoptosis and fibrotic processes. The mitogen-activated protein kinase kinase kinase transforming growth factor-β-activated kinase 1 (TAK1) was implicated in the processes of inflammation and fibrosis. The protective effect of propofol on renal functionality after acute kidney injury (AKI) in mice has been identified, whereas the mechanisms underlying fibrosis induced by kidney injury remain obscure...
June 8, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28601875/activities-of-mscs-derived-from-transgenic-mice-seeded-on-adm-scaffolds-in-wound-healing-and-assessment-by-advanced-optical-techniques
#12
Ning Wang, Hanping Liu, Xuefeng Li, Qilei Zhang, Maosheng Chen, Ying Jin, Xiaoyuan Deng
BACKGROUND/AIMS: Bone marrow Mesenchymal stem cells (MSCs) are promising for promoting cutaneous wound healing through reinforcing cellular processes. We evaluated the effect of GFP-tagged MSCs transplantation on skin regeneration in excisional wounds in mice. METHODS: MSCs from GFP-labeled transgenic mice were co-cultured with acellular dermal matrix (ADM) scaffolds, and MSC-ADM scaffolds were transplanted into surgical skin wounds of BALB/c mice. After implantation, the survival and behavior of MSCs were examined by second harmonic generation and two-photon excitation fluorescence imaging, western blotting and DNA amplification and sequencing...
June 9, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28594374/higher-anti-liver-fibrosis-effect-of-cordyceps-militaris-fermented-product-cultured-with-deep-ocean-water-via-inhibiting-proinflammatory-factors-and-fibrosis-related-factors-expressions
#13
Yu-Ping Hung, Chun-Lin Lee
Deep ocean water (DOW) has been shown to enhance the functional components of fungi, resulting in increased health benefits. Therefore, using DOW for culturing fungi can enhance the cordycepin and adenosine of Cordyceps militaris (CM) and its protective effects on the liver. In this study, the antiliver fibrosis effects and mechanisms of ultrapure water-cultured CM (UCM), DOW-cultured CM (DCM), synthetic water-cultured CM, DOW, cordycepin, and adenosine were compared in the liver fibrosis mice induced by intraperitoneal injections of thioacetamide (TAA)...
June 8, 2017: Marine Drugs
https://www.readbyqxmd.com/read/28570599/imatinib-attenuates-cardiac-fibrosis-by-inhibiting-platelet-derived-growth-factor-receptors-activation-in-isoproterenol-induced-model
#14
Le-Xun Wang, Xiao Yang, Yuan Yue, Tian Fan, Jian Hou, Guang-Xian Chen, Meng-Ya Liang, Zhong-Kai Wu
Cardiac fibrosis is a significant global health problem with limited treatment choices. Although previous studies have shown that imatinib (IMA) inhibited cardiac fibrosis, the anti-fibrotic mechanisms have not been clearly uncovered. The aim of this study is to evaluate whether IMA attenuates cardiac fibrosis by inhibiting platelet-derived growth factor receptors (PDGFR) on isoproterenol (ISO)-induced mice. Adult male C57BL/6 mice were treated with vehicle or ISO ± IMA for one week. After echocardiography examination, the hearts of mice were used for histopathologic, RT-qPCR, and western blot analyses...
2017: PloS One
https://www.readbyqxmd.com/read/28565752/hepatoprotective-activity-of-chrysin-is-mediated-through-tnf-%C3%AE-in-chemically-induced-acute-liver-damage-an-in-vivo-study-and-molecular-modeling
#15
Anca Hermenean, Teodora Mariasiu, Inmaculada Navarro-González, Josefina Vegara-Meseguer, Eftimie Miuțescu, Sandipan Chakraborty, Horacio Pérez-Sánchez
Chrysin (5,7-dihydroxyflavone) is a naturally occurring flavonoid present at high levels in honey, propolis and numerous plant extracts. Chrysin is known to have hepatoprotective activity, however, the mechanisms by which it exerts this effect remain unclear. In the present study, the effects of chrysin in carbon tetrachloride (CCl4)-induced acute liver damage were investigated and the results used to infer a possible mechanism behind chrysin's hepatoprotective activity. Prior to an intraperitoneal injection of CCl4 (1 ml/kg) to induce acute liver damage, chrysin (50 mg/kg) was administered orally to mice for 7 days...
May 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28561086/diabetic-wound-regeneration-using-heparin-mimetic-peptide-amphiphile-gel-in-db-db-mice
#16
Berna Senturk, Burak M Demircan, Alper D Ozkan, Sehmus Tohumeken, Tuncay Delibasi, Mustafa O Guler, Ayse B Tekinay
There is an urgent need for more efficient treatment of chronic wounds in diabetic patients especially with a high risk of leg amputation. Biomaterials capable of presenting extracellular matrix-mimetic signals may assist in the recovery of diabetic wounds by creating a more conducive environment for blood vessel formation and modulating the immune system. In a previous study, we showed that glycosaminoglycan-mimetic peptide nanofibers are able to increase the rate of closure in STZ-induced diabetic rats by induction of angiogenesis...
May 31, 2017: Biomaterials Science
https://www.readbyqxmd.com/read/28560358/hepatocyte-specific-expression-of-constitutively-active-alk5-exacerbates-thioacetamide-induced-liver-injury-in-mice
#17
Wanthita Kongphat, Arnon Pudgerd, Somyoth Sridurongrit
While Transforming growth factor-βs (Tgf-βs) have been known to play an important role in liver fibrosis through an activation of Hepatic Stellate Cells (HSC), their fibrotic role on hepatocytes in liver damage has not been addressed thoroughly. To shed more light on the hepatocyte-specific role of Tgf-β signaling during liver fibrosis, we generated transgenic mice expressing constitutively active Tgf-β type I receptor Alk5 under the control of albumin promoter. Uninjured mice with increased Tgf-β/Alk5 signaling in hepatocytes (caAlk5/Alb-Cre mice) did not show characteristics related to hepatocyte death, fibrosis and inflammation...
May 2017: Heliyon
https://www.readbyqxmd.com/read/28556834/developmental-regulation-of-smn-expression-pathophysiological-implications-and-perspectives-for-therapy-development-in-spinal-muscular-atrophy
#18
REVIEW
S Jablonka, M Sendtner
Spinal muscular atrophy (SMA), the predominant form of motoneuron diease in children and young adults is caused by loss of function of the SMN protein. On the basis of a disrupted splice acceptor site in exon 7, transcripts from a second SMN gene in humans called SMN2 cannot give rise to SMN protein at sufficient levels for maintaining function of motoneurons and motor circuits. First clinical trials with Spinraza/Nusinersen, a drug that counteracts disrupted splicing of SMN2 transcripts, have shown that elevating SMN levels can successfully interfere with motoneuron dysfunction...
May 30, 2017: Gene Therapy
https://www.readbyqxmd.com/read/28550640/endogenous-tissue-factor-pathway-inhibitor-in-vascular-smooth-muscle-cells-inhibits-arterial-thrombosis
#19
Jichun Yang, Kaiyue Jin, Jiajun Xiao, Jing Ma, Duan Ma
Tissue factor pathway inhibitor (TFPI) is the main inhibitor of tissue factor-mediated coagulation. TFPI is expressed by endothelial and smooth muscle cells in the vasculature. Endothelium-derived TFPI has been reported to play a regulatory role in arterial thrombosis. However, the role of endogenous TFPI in vascular smooth muscle cells (VSMCs) in thrombosis and vascular disease development has yet to be elucidated. In this TFPI(Flox) mice crossbred with Sma-Cre mice were utilized to establish TFPI conditional knockout mice and to examine the effects of VSMC-directed TFPI deletion on development, hemostasis, and thrombosis...
May 27, 2017: Frontiers of Medicine
https://www.readbyqxmd.com/read/28529591/antitumor-activity-of-7-o-succinyl-macrolactin-a-tromethamine-salt-in-the-mouse-glioma-model
#20
Jun Jin, Suh Hee Choi, Jung Eun Lee, Jin-Deok Joo, Jung Ho Han, Su-Young Park, Chae-Yong Kim
Chemoradiotherapy with temozolomide is the current standard treatment option for patients with glioblastoma. However, the majority of patients with glioblastoma survive for <2 years. Therefore, it is necessary to develop more effective therapeutic strategies for the treatment of glioblastoma. 7-O-succinyl macrolactin A tromethamine salt (SMA salt), a macrolactin compound, is known to possess an antiangiogenic activity. The present study investigated the antitumor effects of SMA salt in the treatment of glioblastoma by evaluating in vitro and in vivo antitumor effects of SMA salt in an experimental glioblastoma model...
May 2017: Oncology Letters
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