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Fibrosis AND diseases

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https://www.readbyqxmd.com/read/29148977/the-role-of-micrornas-in-chronic-respiratory-disease-recent-insights
#1
Lindsay R Stolzenburg, Ann Harris
Chronic respiratory diseases encompass a group of diverse conditions affecting the airways, which all impair lung function over time. They include cystic fibrosis, idiopathic pulmonary fibrosis, chronic obstructive pulmonary disease, and asthma, which together affect hundreds of millions of people worldwide. MicroRNAs (miRNAs), a class of small non-coding RNAs involved in post-transcriptional gene repression, are now recognized as major regulators in the development and progression of chronic lung disease. Alterations in miRNA abundance occur in lung tissue, inflammatory cells, and freely circulating in blood and are thought to function both as drivers and modifiers of disease...
November 27, 2017: Biological Chemistry
https://www.readbyqxmd.com/read/29148802/ppb-peptide-mediated-sirna-loaded-stable-nucleic-acid-lipid-nanoparticles-on-targeting-therapy-of-hepatic-fibrosis
#2
Zongxiang Jia, Yan Gong, Yufang Pi, Xueying Liu, Lipeng Gao, Liqing Kang, Jing Wang, Fan Yang, Jie Tang, Weiyue Lu, Qinghua Li, Wei Zhang, Zhiqiang Yan, Lei Yu
Hepatic fibrosis is a necessary process in the development of liver diseases such as hepatic cirrhosis and its complications, which has become a serious threat to human health. Currently, antifibrotic drug treatment is ineffective, and one of the reasons should be the lack of liver targeting ability. In this report, polypeptide pPB modified stable nucleic acid lipid nanoparticles (pPB-SNALP) were prepared to selectively deliver siRNAs against heat shock protein 47 (HSP47) to liver for targeted therapy of hepatic fibrosis...
November 17, 2017: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/29148407/minor-salivary-gland-fibrosis-in-sj%C3%A3-gren-s-syndrome-is-elevated-associated-with-focus-score-and-not-solely-a-consequence-of-aging
#3
Kerry M Leehan, Nathan P Pezant, Astrid Rasmussen, Kiely Grundahl, Jacen S Moore, Lida Radfar, David M Lewis, Donald U Stone, Christopher J Lessard, Nelson L Rhodus, Barbara M Segal, R Hal Scofield, Kathy L Sivils, Courtney Montgomery, A Darise Farris
OBJECTIVES: Evaluate the presence of minor salivary gland (SG) fibrosis in primary Sjögren's syndrome (pSS) as a function of disease pathology or a consequence of ageing. METHODS: Subjects with sicca symptoms attending a Sjögren's research clinic were classified by American European Consensus Group (AECG) criteria as either pSS or non-SS (nSS). Discovery (n=34 pSS, n=28 nSS) and replication (n=35 pSS, n=31 nSS) datasets were evaluated. Minor SG cross-sections from haematoxylin and eosin stained slides were imaged, digitally reconstructed and analysed for percent area fibrosis...
October 23, 2017: Clinical and Experimental Rheumatology
https://www.readbyqxmd.com/read/29147917/recommendations-for-perioperative-management-of-lung-cancer-patients-with-comorbidities
#4
REVIEW
Hiroyoshi Tsubochi, Tomoki Shibano, Shunsuke Endo
OBJECTIVES: To improve surgical outcomes, clinicians must provide optimal perioperative care for comorbidities identified as significant factors in risk models for patients undergoing lung cancer surgery. METHODS: We reviewed trends in perioperative care for idiopathic pulmonary fibrosis, cardiovascular diseases, and end-stage renal diseases in patients undergoing lung cancer surgery, as large clinical databases indicate that these comorbidities are significant risk factors for lung cancer surgery...
November 16, 2017: General Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29147913/expression-of-tlr7-tlr9-jak2-and-stat3-genes-in-peripheral-blood-mononuclear-cells-from-patients-with-systemic-sclerosis
#5
Miša Vreća, Ana Zeković, Nemanja Damjanov, Marina Andjelković, Milena Ugrin, Sonja Pavlović, Vesna Spasovski
Systemic sclerosis (SSc) is a rare, chronic, multisystem autoimmune disease clinically characterized by progressive fibrosis of the skin and internal organs. The basic mechanism appears to involve endothelial cell injury, overproduction of extracellular matrix proteins, and aberrant immune activation. So far, there have been a few attempts to find genetic biomarkers for monitoring disease activity or for correlation with certain symptoms. In order to reveal reliable biomarkers, we analyzed the expression of four genes representing three important signaling pathways, TLR7, TLR9, and JAK2-STAT3...
November 16, 2017: Journal of Applied Genetics
https://www.readbyqxmd.com/read/29147765/congestive-hepatopathy
#6
Michael L Wells, Sudhakar K Venkatesh
Passive hepatic congestion may result from a variety of distinct cardiovascular conditions. Injury to the liver caused by congestion is often asymptomatic and may not be recognized clinically. Diagnosis of congestive hepatopathy is important as it has the potential to cause complications including hepatic fibrosis and development of benign and malignant liver masses. This review will summarize the pathophysiologic mechanisms of congestive hepatopathy and provide both description and examples of its multimodality imaging findings...
November 17, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/29147013/integrin-alpha-11-in-the-regulation-of-the-myofibroblast-phenotype-implications-for-fibrotic-diseases
#7
Ruchi Bansal, Shigeki Nakagawa, Saleh Yazdani, Joop van Baarlen, Anu Venkatesh, Anna P Koh, Won-Min Song, Nicolas Goossens, Hideo Watanabe, Mary B Beasley, Charles A Powell, Gert Storm, Naftali Kaminski, Harry van Goor, Scott L Friedman, Yujin Hoshida, Jai Prakash
Tissue fibrosis, characterized by excessive accumulation of aberrant extracellular matrix (ECM) produced by myofibroblasts, is a growing cause of mortality worldwide. Understanding the factors that induce myofibroblastic differentiation is paramount to prevent or reverse the fibrogenic process. Integrin-mediated interaction between the ECM and cytoskeleton promotes myofibroblast differentiation. In the present study, we explored the significance of integrin alpha 11 (ITGA11), the integrin alpha subunit that selectively binds to type I collagen during tissue fibrosis in the liver, lungs and kidneys...
November 17, 2017: Experimental & Molecular Medicine
https://www.readbyqxmd.com/read/29146889/exhaled-markers-of-anti-oxidant-activity-and-oxidative-stress-in-stable-cystic-fibrosis-patients-with-moderate-lung-disease
#8
Lucia Spicuzza, Giuseppe Fabio Parisi, Lucia Tardino, Nicola Ciancio, Raffaella Nenna, Fabio Midulla, Salvatore Leonardi
The sustained imbalance between oxidant and antioxidant species contributes to lung damage in patients with cystic fibrosis (CF). Glutathione (GSH) is an important component of the antioxidant defense in the airways epithelial lining fluid and its transportation out of the cells may be altered in CF. The aim of this study was to assess the oxidants/anti-oxidants balance in the airways of patients with CF. We measured the concentrations of GSH, the total antioxidant capacity and the concentration of 8-iso-prostaglandin F2α (8-isoprostane), a marker of oxidative stress, in the exhaled breath condensate of 17 non-smoking patients with CF, in stable phase, and in 17 age-matched healthy subjects...
November 17, 2017: Journal of Breath Research
https://www.readbyqxmd.com/read/29146601/airway-microbiota-across-age-and-disease-spectrum-in-cystic-fibrosis
#9
Edith T Zemanick, Brandie D Wagner, Charles E Robertson, Richard C Ahrens, James F Chmiel, John P Clancy, Ronald L Gibson, William T Harris, Geoffrey Kurland, Theresa A Laguna, Susanna A McColley, Karen McCoy, George Retsch-Bogart, Kurtis T Sobush, Pamela L Zeitlin, Mark J Stevens, Frank J Accurso, Scott D Sagel, J Kirk Harris
Our objectives were to characterise the microbiota in cystic fibrosis (CF) bronchoalveolar lavage fluid (BALF), and determine its relationship to inflammation and disease status.BALF from paediatric and adult CF patients and paediatric disease controls undergoing clinically indicated bronchoscopy was analysed for total bacterial load and for microbiota by 16S rDNA sequencing.We examined 191 BALF samples (146 CF and 45 disease controls) from 13 CF centres. In CF patients aged <2 years, nontraditional taxa (e...
November 2017: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
https://www.readbyqxmd.com/read/29146575/lumacaftor-vx-809-restores-the-ability-of-cf-macrophages-to-phagocytose-and-kill-pseudomonas-aeruginosa
#10
Roxanna Barnaby, Katja Koeppen, Amanda Nymon, Thomas H Hampton, Brent Berwin, Alix Ashare, Bruce Stanton
Cystic Fibrosis (CF), the most common lethal genetic disease in Caucasians, is characterized by chronic bacterial lung infection and excessive inflammation, which leads to progressive loss of lung function, and premature death. Although ivacaftor (VX-770) and the combination of ivacaftor and lumacaftor (VX-809) improve lung function in CF patients with the Gly551Asp and del508Phe mutation, respectively, the effects of these drugs on the function of human CF macrophages are unknown. Thus, studies were conducted to examine the effects of lumacaftor alone and in combination with ivacaftor (i...
November 16, 2017: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/29146214/-treatments-of-steroid-dependent-nephrotic-syndrome-in-children
#11
A Couderc, E Bérard, V Guigonis, I Vrillon, J Hogan, V Audard, V Baudouin, C Dossier, O Boyer
Primary nephrotic syndrome (NS) is the most common glomerular disease in children. It is characterized by massive proteinuria and hypoalbuminemia. It typically has a sudden onset and more than 70% of patients will experience at least one relapse. An immunological origin has long been postulated, although the precise molecular mechanisms underlying the disease remain debated. Steroids are the first-line therapy with cumulative dose and duration of initial treatment varying among countries. Steroid-sparing agents may be indicated in case of steroid-dependency or frequent relapses...
November 13, 2017: Archives de Pédiatrie: Organe Officiel de la Sociéte Française de Pédiatrie
https://www.readbyqxmd.com/read/29146100/emerging-role-of-extracellular-vesicles-as-a-senescence-associated-secretory-phenotype-insights-into-the-pathophysiology-of-lung-diseases
#12
REVIEW
Tsukasa Kadota, Yu Fujita, Yusuke Yoshioka, Jun Araya, Kazuyoshi Kuwano, Takahiro Ochiya
Aging is a major risk factor for the development of chronic lung diseases such as chronic obstructive pulmonary disease (COPD), idiopathic pulmonary fibrosis (IPF), and lung cancer. A main aspect of aging is the impaired function of maintaining homeostasis in the organs and body, which is associated with cellular senescence. Cellular senescence is recognized as the state of irreversible cell cycle arrest in response to a variety of cellular stresses. Senescent cells are not simply cell cycle-arrested cells; they also affect bystander cells through the secretion of bioactive molecules, termed the senescence-associated secretory phenotype (SASP)...
November 13, 2017: Molecular Aspects of Medicine
https://www.readbyqxmd.com/read/29145775/factors-predicting-non-alcoholic-steatohepatitis-nash-and-advanced-fibrosis-in-patients-with-non-alcoholic-fatty-liver-disease-nafld
#13
Abbas Ali Tasneem, Nasir Hassan Luck, Zain Majid
Introduction To determine the factors predicting non-alcoholic steatohepatitis (NASH) and advanced fibrosis in patients with non-alcoholic fatty liver disease (NAFLD). Methodology All patients aged >18 years and having a fatty liver on abdominal ultrasound (US), presenting from January 2011 to January 2017, were included. A liver biopsy was performed on all the patients. Results Of 96 patients undergoing liver biopsy for non-alcoholic fatty liver disease (NAFLD), 76 (79.2%) were men. On liver US, diffuse fatty liver (DFL) was noted in 68 (70...
January 1, 2017: Tropical Doctor
https://www.readbyqxmd.com/read/29145499/clinical-tool-for-disease-phenotyping-in-granulomatous-lung-disease
#14
Lori J Silveira, Matthew Strand, Michael V Van Dyke, Margaret M Mroz, Anna V Faino, Dana M Dabelea, Lisa A Maier, Tasha E Fingerlin
BACKGROUND: Exposure to beryllium may lead to granuloma formation and fibrosis in those who develop chronic beryllium disease (CBD). Although disease presentation varies from mild to severe, little is known about CBD phenotypes. This study characterized CBD disease phenotypes using longitudinal measures of lung function. METHODS: Using a case-only study of 207 CBD subjects, subject-specific trajectories over time were estimated from longitudinal pulmonary function and exercise-tolerance tests...
2017: PloS One
https://www.readbyqxmd.com/read/29145453/the-antiviral-drug-tenofovir-an-inhibitor-of-pannexin-1-mediated-atp-release-prevents-liver-and-skin-fibrosis-by-downregulating-adenosine-levels-in-the-liver-and-skin
#15
Jessica L Feig, Aranzazu Mediero, Carmen Corciulo, Hailing Liu, Jin Zhang, Miguel Perez-Aso, Laura Picard, Tuere Wilder, Bruce Cronstein
BACKGROUND: Fibrosing diseases are a leading cause of morbidity and mortality worldwide and, therefore, there is a need for safe and effective antifibrotic therapies. Adenosine, generated extracellularly by the dephosphorylation of adenine nucleotides, ligates specific receptors which play a critical role in development of hepatic and dermal fibrosis. Results of recent clinical trials indicate that tenofovir, a widely used antiviral agent, reverses hepatic fibrosis/cirrhosis in patients with chronic hepatitis B infection...
2017: PloS One
https://www.readbyqxmd.com/read/29145426/buserelin-alleviates-chloride-transport-defect-in-human-cystic-fibrosis-nasal-epithelial-cells
#16
Marie-Laure Calvez, Nathalie Benz, Florentin Huguet, Aude Saint-Pierre, Elise Rouillé, Christelle Coraux, Claude Férec, Mathieu Kerbiriou, Pascal Trouvé
Cystic fibrosis (CF) is the most common autosomal recessive disease in Caucasians caused by mutations in the gene encoding the Cystic Fibrosis Transmembrane conductance Regulator (CFTR) chloride (Cl-) channel regulated by protein kinases, phosphatases, divalent cations and by protein-protein interactions. Among protein-protein interactions, we previously showed that Annexin A5 (AnxA5) binds to CFTR and is involved in the channel localization within membranes and in its Cl- channel function. The deletion of phenylalanine at position 508 (F508del) is the most common mutation in CF which leads to an altered protein (F508del-CFTR) folding with a nascent protein retained within the ER and is quickly degraded...
2017: PloS One
https://www.readbyqxmd.com/read/29145157/bmscs-derived-mir-223-containing-exosomes-contribute-to-liver-protection-in-experimental-autoimmune-hepatitis
#17
Lu Chen, Feng-Bin Lu, Da-Zhi Chen, Jin-Lu Wu, En-de Hu, Lan-Man Xu, Ming-Hua Zheng, Hui Li, Yu Huang, Xiao-Ya Jin, Yue-Wen Gong, Zhuo Lin, Xiao-Dong Wang, Yong-Ping Chen
Autoimmune hepatitis is a chronic inflammatory disease in the liver with potential to the development of liver fibrosis. Recent evidences suggest that bone marrow derived mesenchymal stem cells (BMSCs) may exert its therapeutic activity through exosomes. Moreover, miR-223 is highly expressed in BMSCs and plays an important role in autoimmune diseases. Therefore, in this study, hepatoprotective role of BMSCs and miR-223 was investigated in both mice and hepatocytes. Liver antigen S100 was used to establish autoimmune hepatitis model in mice while LPS and ATP were used to establish cell injury model in hepatocyte...
November 13, 2017: Molecular Immunology
https://www.readbyqxmd.com/read/29144460/inflammation-induced-iga-cells-dismantle-anti-liver-cancer-immunity
#18
Shabnam Shalapour, Xue-Jia Lin, Ingmar N Bastian, John Brain, Alastair D Burt, Alexander A Aksenov, Alison F Vrbanac, Weihua Li, Andres Perkins, Takaji Matsutani, Zhenyu Zhong, Debanjan Dhar, Jose A Navas-Molina, Jun Xu, Rohit Loomba, Michael Downes, Ruth T Yu, Ronald M Evans, Pieter C Dorrestein, Rob Knight, Christopher Benner, Quentin M Anstee, Michael Karin
The role of adaptive immunity in early cancer development is controversial. Here we show that chronic inflammation and fibrosis in humans and mice with non-alcoholic fatty liver disease is accompanied by accumulation of liver-resident immunoglobulin-A-producing (IgA(+)) cells. These cells also express programmed death ligand 1 (PD-L1) and interleukin-10, and directly suppress liver cytotoxic CD8(+) T lymphocytes, which prevent emergence of hepatocellular carcinoma and express a limited repertoire of T-cell receptors against tumour-associated antigens...
November 16, 2017: Nature
https://www.readbyqxmd.com/read/29144435/dysregulated-collagen-homeostasis-by-matrix-stiffening-and-tgf-%C3%AE-1-in-fibroblasts-from-idiopathic-pulmonary-fibrosis-patients-role-of-fak-akt
#19
Alícia Giménez, Paula Duch, Marta Puig, Marta Gabasa, Antoni Xaubet, Jordi Alcaraz
Idiopathic pulmonary fibrosis (IPF) is an aggressive disease in which normal lung parenchyma is replaced by a stiff dysfunctional scar rich in activated fibroblasts and collagen-I. We examined how the mechanochemical pro-fibrotic microenvironment provided by matrix stiffening and TGF-β1 cooperates in the transcriptional control of collagen homeostasis in normal and fibrotic conditions. For this purpose we cultured fibroblasts from IPF patients or control donors on hydrogels with tunable elasticity, including 3D collagen-I gels and 2D polyacrylamide (PAA) gels...
November 16, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29143875/the-role-of-18f-fdg-pet-ct-and-pet-mri-in-pancreatic-ductal-adenocarcinoma
#20
Randy Yeh, Laurent Dercle, Ishan Garg, Zhen Jane Wang, David M Hough, Ajit H Goenka
Pancreatic ductal adenocarcinoma (PDAC) remains a difficult disease to treat and continues to portend a poor prognosis, as most patients are unresectable at diagnosis. 18F-fluorodeoxyglucose (FDG) positron emission tomography (PET) combined with CT (PET/CT) has been a cornerstone in oncological imaging of different cancers; however, the role of PET/CT in PDAC is continually evolving and currently not well established. Studies have shown the potential of PET/CT in guiding the management of patients with PDAC, with possible added benefit over anatomic imaging with CT or MRI in certain scenarios...
November 16, 2017: Abdominal Radiology
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