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https://www.readbyqxmd.com/read/28320086/antifibrotic-effect-of-diethylcarbamazine-combined-with-hesperidin-against-ethanol-induced-liver-fibrosis-in-rats
#1
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)...
March 14, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28303974/antifibrotic-effect-of-pirfenidone-in-a-mouse-model-of-human-nonalcoholic-steatohepatitis
#2
Chikara Komiya, Miyako Tanaka, Kyoichiro Tsuchiya, Noriko Shimazu, Kentaro Mori, Shunsaku Furuke, Yasutaka Miyachi, Kumiko Shiba, Shinobu Yamaguchi, Kenji Ikeda, Kozue Ochi, Kazuhiko Nakabayashi, Ken-Ichiro Hata, Michiko Itoh, Takayoshi Suganami, Yoshihiro Ogawa
Non-alcoholic steatohepatitis (NASH) is characterized by steatosis with lobular inflammation and hepatocyte injury. Pirfenidone (PFD) is an orally bioavailable pyridone derivative that has been clinically used for the treatment of idiopathic pulmonary fibrosis. However, it remains unknown whether PFD improves liver fibrosis in a mouse model with human NASH-like phenotypes. In this study, we employed melanocortin 4 receptor-deficient (MC4R-KO) mice as a mouse model with human NASH-like phenotypes to elucidate the effect and action mechanisms of PFD on the development of NASH...
March 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28284377/treatment-of-renal-fibrosis-turning-challenges-into-opportunities
#3
REVIEW
Barbara M Klinkhammer, Roel Goldschmeding, Jürgen Floege, Peter Boor
Current treatment modalities are not effective in halting the progression of most CKD. Renal fibrosis is a pathological process common to all CKD and thereby represents an excellent treatment target. A large number of molecular pathways involved in renal fibrosis were identified in preclinical studies, some of them being similar among different organs and some with available drugs in various phases of clinical testing. Yet only few clinical trials with antifibrotic drugs are being conducted in CKD patients...
March 2017: Advances in Chronic Kidney Disease
https://www.readbyqxmd.com/read/28257580/a-novel-antifibrotic-mechanism-of-nintedanib-and-pirfenidone-inhibition-of-collagen-fibril-assembly
#4
Larissa Knüppel, Yoshihiro Ishikawa, Michaela Aichler, Katharina Heinzelmann, Rudolf Hatz, Jürgen Behr, Axel Walch, Hans Peter Bächinger, Oliver Eickelberg, Claudia A Staab-Weijnitz
RATIONALE: Idiopathic pulmonary fibrosis (IPF) is characterized by excessive deposition of extracellular matrix, in particular collagens. Two IPF therapeutics, nintedanib and pirfenidone, decelerate lung function decline, but their underlying mechanisms of action are poorly understood. In this study we sought to analyze their effects on collagen synthesis and maturation at important regulatory levels. METHODS: Primary human fibroblasts from IPF patients and healthy donors were treated with nintedanib (0...
March 3, 2017: American Journal of Respiratory Cell and Molecular Biology
https://www.readbyqxmd.com/read/28184197/therapeutic-efficacy-of-esomeprazole-in-cotton-smoke-induced-lung-injury-model
#5
Christina Nelson, Jameisha Lee, Kang Ko, Andrew G Sikora, Mark D Bonnen, Perenlei Enkhbaatar, Yohannes T Ghebre
Proton pump inhibitors (PPIs) are well-known antacid drugs developed to treat gastric disorders. Emerging studies demonstrate that PPIs possess biological activities that extend beyond inhibition of H(+)/K(+) ATPase (proton pumps) expressed in parietal cells of the stomach. Some of the extra-gastric activities of PPIs include modulation of epithelial, endothelial, and immune cell functions. Recently, we reported that PPIs suppress the expression of several proinflammatory and profibrotic molecules, as well as enhance antioxidant mechanisms in order to favorably regulate lung inflammation and fibrosis in an animal model of bleomycin-induced lung injury...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28164758/angiotensin-peptides-as-at2-receptor-agonists
#6
Mathias Hallberg, Jonas Sävmarker, Anders Hallberg
In 2004, the first nonpeptide selective angiotensin II type 2 receptor (AT2R) agonist was reported. This nonpeptide (C21), which, exerts anti-inflammatory and antifibrotic actions in vivo, has been extensively explored and is currently in clinical trials. Subsequently, a large number of related drug-like AT2R agonists have been disclosed. Reviews that summarize known structure-activity relationships (SAR) of nonpeptide AT2R agonists have recently appeared in the literature; however, very few reviews discuss the role of angiotensin peptides as AT2R agonists...
February 3, 2017: Current Protein & Peptide Science
https://www.readbyqxmd.com/read/28148565/pirfenidone-exerts-antifibrotic-effects-through-inhibition-of-gli-transcription-factors
#7
Miroslava Didiasova, Rajeev Singh, Jochen Wilhelm, Grazyna Kwapiszewska, Lukasz Wujak, Dariusz Zakrzewicz, Liliana Schaefer, Philipp Markart, Werner Seeger, Matthias Lauth, Malgorzata Wygrecka
Pirfenidone is an antifibrotic drug, recently approved for the treatment of patients suffering from idiopathic pulmonary fibrosis (IPF). Although pirfenidone exhibits anti-inflammatory, antioxidant, and antifibrotic properties, the molecular mechanism underlying its protective effects remains unknown. Here, we link pirfenidone action with the regulation of the profibrotic hedgehog (Hh) signaling pathway. We demonstrate that pirfenidone selectively destabilizes the glioma-associated oncogene homolog (GLI)2 protein, the primary activator of Hh-mediated gene transcription...
February 1, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/28138565/3d-pulmospheres-serve-as-a-personalized-and-predictive-multicellular-model-for-assessment-of-antifibrotic-drugs
#8
Ranu Surolia, Fu Jun Li, Zheng Wang, Huashi Li, Gang Liu, Yong Zhou, Tracy Luckhardt, Sejong Bae, Rui-Ming Liu, Sunad Rangarajan, Joao de Andrade, Victor J Thannickal, Veena B Antony
Idiopathic pulmonary fibrosis (IPF) is a fatal progressive fibrotic lung disease characterized by the presence of invasive myofibroblasts in the lung. Currently, there are only two FDA-approved drugs (pirfenidone and nintedanib) for the treatment of IPF. There are no defined criteria to guide specific drug therapy. New methodologies are needed not only to predict personalized drug therapy, but also to screen novel molecules that are on the horizon for treatment of IPF. We have developed a model system that exploits the invasive phenotype of IPF lung tissue...
January 26, 2017: JCI Insight
https://www.readbyqxmd.com/read/28134007/optimizing-quality-of-life-in-patients-with-idiopathic-pulmonary-fibrosis
#9
Mirjam J G van Manen, J J Miranda Geelhoed, Nelleke C Tak, Marlies S Wijsenbeek
Idiopathic pulmonary fibrosis (IPF) is a devastating, progressive and ultimately fatal lung disease. The combination of poor prognosis, uncertainty of disease course and severe symptom burden heavily impacts patients' and their families' quality of life. Though new antifibrotic drugs have been shown to decrease disease progression, the effect on health-related quality of life (HRQOL) has not been convincingly demonstrated. In a relentless disease such as IPF, striving to optimize HRQOL should complement the endeavour to prolong life...
January 1, 2017: Therapeutic Advances in Respiratory Disease
https://www.readbyqxmd.com/read/28122312/sorafenib-a-potential-therapeutic-drug-for-hepatic-fibrosis-and-its-outcomes
#10
REVIEW
Rui Ma, Jiang Chen, Yuelong Liang, Shuang Lin, Linghua Zhu, Xiao Liang, Xiujun Cai
Hepatic fibrosis is a common response to liver injury that occurs in almost all liver diseases and is characterized by an excessive deposition of extracellular matrix, which can cause hepatic dysfunction and develop into cirrhosis. There is no curative treatment except liver transplantation and few treatments have been thoroughly validated in the clinic or commercialized as a therapy. Recently, sorafenib, an FDA approved molecular targeted drug for the treatment of advanced hepatocellular and renal cell carcinomas, has been reported to exert anti-fibrotic effects in liver fibrosis...
April 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28106896/the-2016-bowman-lecture-conjunctival-curses-scarring-conjunctivitis-30-years-on
#11
J K Dart
This review is in two sections. The first section summarises 35 conditions, both common and infrequent, causing cicatrising conjunctivitis. Guidelines for making a diagnosis are given together with the use of diagnostic tests, including direct and indirect immunofluorescence, and their interpretation. The second section evaluates our knowledge of ocular mucous membrane pemphigoid, which is the commonest cause of cicatrizing conjunctivitis in most developed countries. The clinical characteristics, demographics, and clinical signs of the disease are described...
February 2017: Eye
https://www.readbyqxmd.com/read/28079978/targeting-coagulation-factor-receptors-protease-activated-receptors-in-idiopathic-pulmonary-fibrosis
#12
REVIEW
C Lin, K Borensztajn, C A Spek
Idiopathic pulmonary fibrosis (IPF) is a lethal lung disease with a 5-year mortality rate of > 50% and unknown etiology. Treatment options remain limited and, currently, only two drugs are available, i.e. nintedanib and pirfenidone. However, both of these antifibrotic agents only slow down the progression of the disease, and do not remarkably prolong the survival of IPF patients. Hence, the discovery of new therapeutic targets for IPF is crucial. Studies exploring the mechanisms that are involved in IPF have identified several possible targets for therapeutic interventions...
January 12, 2017: Journal of Thrombosis and Haemostasis: JTH
https://www.readbyqxmd.com/read/28054535/combined-prednisolone-and-pirfenidone-in-bleomycin-induced-lung-disease
#13
Preyas J Vaidya, H S Sandeepa, Tejinder Singh, S K Susheel Kumar, Rajat Bhargava, Gopal Ramakrishnan, Prashant N Chhajed
Bleomycin is a cytostatic drug commonly employed in the treatment of Hodgkin's disease, seminomas, and choriocarcinoma. Bleomycin may induce a chronic pulmonary inflammation that may progress to fibrosis. So far, only corticosteroids have been used in the treatment of bleomycin-induced lung disease with variable results. Pirfenidone is an antifibrotic drug that has been approved for the treatment of idiopathic pulmonary fibrosis. We report two cases of bleomycin-induced lung disease treated successfully with pirfenidone and oral corticosteroids...
July 2016: Journal of Cancer Research and Therapeutics
https://www.readbyqxmd.com/read/28049280/new-therapeutic-agents-in-diabetic-nephropathy
#14
REVIEW
Yaeni Kim, Cheol Whee Park
Studies investigating diabetic nephropathy (DN) have mostly focused on interpreting the pathologic molecular mechanisms of DN, which may provide valuable tools for early diagnosis and prevention of disease onset and progression. Currently, there are few therapeutic drugs for DN, which mainly consist of antihypertensive and antiproteinuric measures that arise from strict renin-angiotensin-aldosterone system inactivation. However, these traditional therapies are suboptimal and there is a clear, unmet need for treatments that offer effective schemes beyond glucose control...
January 2017: Korean Journal of Internal Medicine
https://www.readbyqxmd.com/read/28012025/antifibrotic-effects-of-carvedilol-and-impact-of-liver-fibrosis-on-carvedilol-pharmacokinetics-in-a-rat-model
#15
Ebtehal El-Demerdash, Somaia A Abdel-Sattar, Wesam M El-Bakly, Eman A Mohamed
BACKGROUND AND OBJECTIVES: Carvedilol is a drug of choice in treatment of portal hypertension. The present study was designed to elucidate the potential role of antifibrotic effects of carvedilol in improving hepatic efficiency and the carvedilol oral pharmacokinetic changes during induction of liver fibrosis. METHODS: Rats were given CCl4 (1 ml/kg, intraperitoneal) twice weekly for 6 weeks and/or co-treated with carvedilol (10 mg/kg, orally) three times weekly on alternating days...
December 23, 2016: European Journal of Drug Metabolism and Pharmacokinetics
https://www.readbyqxmd.com/read/27999454/clinical-advancements-in-the-targeted-therapies-against-liver-fibrosis
#16
REVIEW
Ruchi Bansal, Beata Nagórniewicz, Jai Prakash
Hepatic fibrosis, characterized by excessive accumulation of extracellular matrix (ECM) proteins leading to liver dysfunction, is a growing cause of mortality worldwide. Hepatocellular damage owing to liver injury leads to the release of profibrotic factors from infiltrating inflammatory cells that results in the activation of hepatic stellate cells (HSCs). Upon activation, HSCs undergo characteristic morphological and functional changes and are transformed into proliferative and contractile ECM-producing myofibroblasts...
2016: Mediators of Inflammation
https://www.readbyqxmd.com/read/27956543/drug-development-pipeline-for-myeloproliferative-neoplasms-potential-future-impact-on-guidelines-and-management
#17
REVIEW
Prithviraj Bose, Srdan Verstovsek
The unprecedented success of ruxolitinib in myelofibrosis (MF) has paved the way for the development of other Janus kinase (JAK) inhibitors and other agents representing diverse drug classes and mechanisms of action in myeloproliferative neoplasms (MPNs). In particular, the symptomatic benefits afforded by ruxolitinib have led to the recognition of "clinical improvement" in symptoms and the spleen in international consensus response criteria for MF. Ruxolitinib is also approved for the second-line treatment of polycythemia vera and is being developed for essential thrombocythemia...
December 2016: Journal of the National Comprehensive Cancer Network: JNCCN
https://www.readbyqxmd.com/read/27941433/kidney-fibrosis-origins-and-interventions
#18
Thomas Vanhove, Roel Goldschmeding, Dirk Kuypers
All causes of renal allograft injury, when severe and/or sustained, can result in chronic histological damage of which interstitial fibrosis and tubular atrophy are dominant features. Unless a specific disease process can be identified, what drives interstitial fibrosis and tubular atrophy progression in individual patients is often unclear. In general, clinicopathological factors known to predict and drive allograft fibrosis include graft quality, inflammation (whether "nonspecific" or related to a specific diagnosis), infections, such as polyomavirus-associated nephropathy, calcineurin inhibitors (CNI), and genetic factors...
April 2017: Transplantation
https://www.readbyqxmd.com/read/27927780/genomic-analysis-of-kidney-allograft-injury-identifies-hematopoietic-cell-kinase-as-a-key-driver-of-renal-fibrosis
#19
Chengguo Wei, Li Li, Madhav C Menon, Weijia Zhang, Jia Fu, Brian Kidd, Karen L Keung, Christopher Woytovich, Ilana Greene, Wenzhen Xiao, Fadi Salem, Zhengzi Yi, John Cijiang He, Joel T Dudley, Barbara Murphy
Renal fibrosis is the common pathway of progression for patients with CKD and chronic renal allograft injury (CAI), but the underlying mechanisms remain obscure. We performed a meta-analysis in human kidney biopsy specimens with CAI, incorporating data available publicly and from our Genomics of Chronic Renal Allograft Rejection study. We identified an Src family tyrosine kinase, hematopoietic cell kinase (Hck), as upregulated in allografts in CAI. Querying the Kinase Inhibitor Resource database revealed that dasatinib, a Food and Drug Administration-approved drug, potently binds Hck with high selectivity...
December 7, 2016: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/27886639/hyaluronan-derived-swelling-of-solid-tumors-the-contribution-of-collagen-and-cancer-cells-and-implications-for-cancer-therapy
#20
Chrysovalantis Voutouri, Christiana Polydorou, Panagiotis Papageorgis, Vasiliki Gkretsi, Triantafyllos Stylianopoulos
Despite the important role that mechanical forces play in tumor growth and therapy, the contribution of swelling to tumor mechanopathology remains unexplored. Tumors rich in hyaluronan exhibit a highly negative fixed charge density. Repulsive forces among these negative charges as well as swelling of cancer cells due to regulation of intracellular tonicity can cause tumor swelling and development of stress that might compress blood vessels, compromising tumor perfusion and drug delivery. Here, we designed an experimental strategy, using four orthotopic tumor models, to measure swelling stress and related swelling to extracellular matrix components, hyaluronan and collagen, as well as to tumor perfusion...
December 2016: Neoplasia: An International Journal for Oncology Research
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