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Fibrosis

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https://www.readbyqxmd.com/read/28212568/an-anthocyanin-rich-strawberry-extract-induces-apoptosis-and-ros-while-decreases-glycolysis-and-fibrosis-in-human-uterine-leiomyoma-cells
#1
Md Soriful Islam, Francesca Giampieri, Milijana Janjusevic, Massimiliano Gasparrini, Tamara Y Forbes-Hernandez, Luca Mazzoni, Stefania Greco, Stefano Raffaele Giannubilo, Andrea Ciavattini, Bruno Mezzetti, Franco Capocasa, Mario Castellucci, Maurizio Battino, Pasquapina Ciarmela
Uterine leiomyomas are highly prevalent benign tumors in reproductive aged women. Unfortunately, medical treatments are still limited and no preventive therapies have been developed. In the present study, we investigated the therapeutic effects of strawberry extract on uterine leiomyoma cells. Leiomyoma and myometrial cells were treated with strawberry (cultivar Alba) extract (250 μg/ml) for 48 h to measure apoptosis, reactive oxygen species (ROS), oxidative phosphorylation (OCR, oxygen consumption rate) and glycolysis (ECAR, extracellular acidification rate) as well as fibrosis associated gene and/or protein expression...
February 15, 2017: Oncotarget
https://www.readbyqxmd.com/read/28212548/branched-chain-amino-acids-prevent-hepatic-fibrosis-and-development-of-hepatocellular-carcinoma-in-a-non-alcoholic-steatohepatitis-mouse-model
#2
Kai Takegoshi, Masao Honda, Hikari Okada, Riuta Takabatake, Naoto Matsuzawa-Nagata, Jean S Campbell, Masashi Nishikawa, Tetsuro Shimakami, Takayoshi Shirasaki, Yoshio Sakai, Taro Yamashita, Toshinari Takamura, Takuji Tanaka, Shuichi Kaneko
Oral supplementation with branched-chain amino acids (BCAA; leucine, isoleucine, and valine) in patients with liver cirrhosis potentially suppresses the incidence of hepatocellular carcinoma (HCC) and improves event-free survival. However, the detailed mechanisms of BCAA action have not been fully elucidated. BCAA were administered to atherogenic and high-fat (Ath+HF) diet-induced nonalcoholic steatohepatitis (NASH) model mice. Liver histology, tumor incidence, and gene expression profiles were evaluated. Ath+HF diet mice developed hepatic tumors at a high frequency at 68 weeks...
February 13, 2017: Oncotarget
https://www.readbyqxmd.com/read/28212414/decline-in-infection-related-morbidities-following-drug-mediated-reductions-in-the-intensity-of-schistosoma-infection-a-systematic-review-and-meta-analysis
#3
Gisele Andrade, David J Bertsch, Andrea Gazzinelli, Charles H King
BACKGROUND: Since 1984, WHO has endorsed drug treatment to reduce Schistosoma infection and its consequent morbidity. Cross-sectional studies suggest pre-treatment correlation between infection intensity and risk for Schistosoma-related pathology. However, evidence also suggests that post-treatment reduction in intensity may not reverse morbidity because some morbidities occur at all levels of infection, and some reflect permanent tissue damage. The aim of this project was to systematically review evidence on drug-based control of schistosomiasis and to develop a quantitative estimate of the impact of post-treatment reductions in infection intensity on prevalence of infection-associated morbidity...
February 17, 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28211974/whole-exome-sequencing-identified-1-base-pair-novel-deletion-in-bcl2-associated-athanogene-3-bag3-gene-associated-with-severe-dilated-cardiomyopathy-dcm-requiring-heart-transplant-in-multiple-family-members
#4
Muhammad Arshad Rafiq, Ayeshah Chaudhry, Melanie Care, Danna A Spears, Chantal F Morel, Robert M Hamilton
Dilated cardiomyopathy (DCM) is characterized by dilation and impaired contraction of the left ventricle or both ventricles. Among hereditary DCM, the genetic causes are heterogeneous, and include mutations encoding cytoskeletal, nucleoskeletal, mitochondrial, and calcium-handling proteins. We report three severely affected males, in a four-generation pedigree, with DCM phenotype who underwent cardiac transplant. Cardiomegaly with marked biventricular dilation and fibrosis were noticeable histopathological findings...
March 2017: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/28211533/integration-of-microrna-and-mrna-expression-profiles-in-the-skin-of-systemic-sclerosis-patients
#5
Bin Zhou, Xiao Xia Zuo, Yi Sha Li, Si Ming Gao, Xiao Dan Dai, Hong Lin Zhu, Hui Luo
MicroRNAs (miRNAs) play important roles in the fibrosis of systemic sclerosis (SSc). However, the underlying miRNA-mRNA regulatory network is not fully understood. A systemic investigation of the role of miRNAs would be very valuable for increasing our knowledge of the pathogenesis of SSc. Here, we combined miRNA and mRNA expression profiles and bioinformatics analyses and then performed validation experiments. we identified 21 miRNAs and 2698 mRNAs that were differentially expressed in SSc. Among these, 17 miRNAs and their 33 target mRNAs (55 miRNA-mRNA pairs) were involved in Toll-like receptor, transforming growth factor β and Wnt signalling pathways...
February 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28211475/biofilm-formation-of-the-black-yeast-like-fungus-exophiala-dermatitidis-and-its-susceptibility-to-antiinfective-agents
#6
Lisa Kirchhoff, Maike Olsowski, Katrin Zilmans, Silke Dittmer, Gerhard Haase, Ludwig Sedlacek, Eike Steinmann, Jan Buer, Peter-Michael Rath, Joerg Steinmann
Various fungi have the ability to colonize surfaces and to form biofilms. Fungal biofilm-associated infections are frequently refractory to targeted treatment because of resistance to antifungal drugs. One fungus that frequently colonises the respiratory tract of cystic fibrosis (CF) patients is the opportunistic black yeast-like fungus Exophiala dermatitidis. We investigated the biofilm-forming ability of E. dermatitidis and its susceptibility to various antiinfective agents and natural compounds. We tested 58 E...
February 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28211460/corrigendum-cytochrome-p450-2e1-promotes-fast-food-mediated-hepatic-fibrosis
#7
Mohamed A Abdelmegeed, Youngshim Choi, Grzegorz Godlewski, Seung-Kwon Ha, Atrayee Banerjee, Sehwan Jang, Byoung-Joon Song
No abstract text is available yet for this article.
February 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28211229/serum-micrornas-as-predictors-for-liver-fibrosis-staging-in-hepatitis-c-virus-associated-chronic-liver-disease-patients
#8
Olfat G Shaker, Mahmoud A Senousy
Accurate staging of liver fibrosis is important for clinical decision making and personalized management. Liver fibrosis is influenced by patients' genomics, including IFNL3 genotype and microRNA expression. However, incorporating microRNAs into fibrosis prediction algorithms has not been investigated. We examined the potential of 8 selected serum microRNAs; miR-122, miR-126, miR-129, miR-199a, miR-155, miR-203a, miR-221, and miR-223 as non-invasive biomarkers to stage liver fibrosis in HCV-associated chronic liver disease (HCV-CLD)...
February 17, 2017: Journal of Viral Hepatitis
https://www.readbyqxmd.com/read/28211153/the-prognostic-relevance-of-serum-lactate-dehydrogenase-and-mild-bone-marrow-reticulin-fibrosis-in-essential-thrombocythemia
#9
Mythri Mudireddy, Daniela Barraco, Curtis A Hanson, Animesh Pardanani, Naseema Gangat, Ayalew Tefferi
The 2016 World Health Organization (WHO) diagnostic criteria for myeloproliferative neoplasms (MPN) underscore the prognostically-relevant distinction between essential thrombocythemia (ET) and prefibrotic primary myelofibrosis (pre-PMF). In addition, leukocytosis has been identified as an important prognostic marker in otherwise WHO-defined ET. However, controversy remains regarding the objectivity of morphologic criteria in distinguishing ET from pre-PMF and the precise prognostic cutoff values for leukocytosis...
February 17, 2017: American Journal of Hematology
https://www.readbyqxmd.com/read/28211034/infectious-complications-as-the-leading-cause-of-death-after-kidney-transplantation-analysis-of-more-than-10-000-transplants-from-a-single-center
#10
Flávio de Castro Rodrigues Ferreira, Marina Pontello Cristelli, Mayara Ivani Paula, Henrique Proença, Claudia Rosso Felipe, Helio Tedesco-Silva, José Osmar Medina-Pestana
AIM: To identify specific causes of graft failure in a large sample of kidney transplant patients from a middle-income, developing country. METHODS: Retrospective cohort study analyzing all consecutive single kidney transplants (KTs) performed at a single center in Brazil between January 1st 1998 and December 31st 2013. The database closing date was December 31st 2014. RESULTS: Out of 10,400 KTs, there were 1191 (11.45%) deaths with a functioning graft, 40 cases (0...
February 17, 2017: Journal of Nephrology
https://www.readbyqxmd.com/read/28210941/b-lymphocytes-in-renal-interstitial-fibrosis
#11
REVIEW
Fengge Zhu, Xueyuan Bai, Xiangmei Chen
Fibrosis is defined as an excessive deposition of extracellular matrix (ECM), which leads to the destruction of organ structure and impairment of organ function. Fibrosis occurs not only in kidney but also in lung, liver, heart, and skin. Common pathways of fibrosis are thought to exist. Renal interstitial fibrosis is a complex process that involves multiple molecular signaling and multiple cellular components, in which B cells appear to be one of the emerging important players. B cells may affect fibrosis through cytokine production and through interaction with other cells including fibroblasts, macrophages and T cells...
February 16, 2017: Journal of Cell Communication and Signaling
https://www.readbyqxmd.com/read/28210939/deep-phenotyping-of-systemic-arterial-hemodynamics-in-hfpef-part-1-physiologic-and-technical-considerations
#12
REVIEW
Julio A Chirinos
A better understanding of the pathophysiology of heart failure with a preserved left ventricular ejection fraction (HFpEF) is important. Detailed phenotyping of pulsatile hemodynamics has provided important insights into the pathophysiology of left ventricular remodeling and fibrosis, diastolic dysfunction, microvascular disease, and impaired oxygen delivery to peripheral skeletal muscle, all of which contribute to exercise intolerance, the cardinal feature of HFpEF. Furthermore, arterial pulsatile hemodynamic mechanisms likely contribute to the frequent presence of comorbidities, such as renal failure and dementia, in this population...
February 16, 2017: Journal of Cardiovascular Translational Research
https://www.readbyqxmd.com/read/28210914/comparison-of-histopathological-characteristics-of-polyacrylate-polyalcohol-copolymer-with-dextranomer-hyaluronic-acid-after-injection-beneath-the-bladder-mucosa-layer-a-rabbit-model
#13
Abdol-Mohammad Kajbafzadeh, Shabnam Sabetkish, Reza Khorramirouz, Nastaran Sabetkish
OBJECTIVES: To compare short- and long-term local tissue reaction of polyacrylate polyalcohol copolymer (PPC) with dextranomer/hyaluronic acid (DHA) in rabbits. METHODS: Eight healthy New Zealand rabbits were randomly divided into two groups. In group I (control group), DHA was injected just beneath the mucosal layer of the bladder wall, while PPC was injected in group II. Subcutaneous injection of both bulking agents was also performed in nude mice. Histological evaluations with leukocyte common antibody (LCA), CD68, CD31, and CD34 were conducted on biopsies 1 and 6 months postoperatively...
February 16, 2017: International Urology and Nephrology
https://www.readbyqxmd.com/read/28210622/epigenetics-and-signaling-pathways-in-glaucoma
#14
REVIEW
Angela C Gauthier, Ji Liu
Glaucoma is the most common cause of irreversible blindness worldwide. This neurodegenerative disease becomes more prevalent with aging, but predisposing genetic and environmental factors also contribute to increased risk. Emerging evidence now suggests that epigenetics may also be involved, which provides potential new therapeutic targets. These three factors work through several pathways, including TGF-β, MAP kinase, Rho kinase, BDNF, JNK, PI-3/Akt, PTEN, Bcl-2, Caspase, and Calcium-Calpain signaling. Together, these pathways result in the upregulation of proapoptotic gene expression, the downregulation of neuroprotective and prosurvival factors, and the generation of fibrosis at the trabecular meshwork, which may block aqueous humor drainage...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28210319/physiology-of-respiratory-disturbances-in-muscular-dystrophies
#15
Antonella Lo Mauro, Andrea Aliverti
: Muscular dystrophy is a group of inherited myopathies characterised by progressive skeletal muscle wasting, including of the respiratory muscles. Respiratory failure, i.e. when the respiratory system fails in its gas exchange functions, is a common feature in muscular dystrophy, being the main cause of death, and it is a consequence of lung failure, pump failure or a combination of the two. The former is due to recurrent aspiration, the latter to progressive weakness of respiratory muscles and an increase in the load against which they must contract...
December 2016: Breathe
https://www.readbyqxmd.com/read/28210295/global-impact-of-bronchiectasis-and-cystic-fibrosis
#16
REVIEW
Margarida Redondo, Holly Keyt, Raja Dhar, James D Chalmers
EDUCATIONAL AIMS: To recognise the clinical and radiological presentation of the spectrum of diseases associated with bronchiectasis.To understand variation in the aetiology, microbiology and burden of bronchiectasis and cystic fibrosis across different global healthcare systems. : Bronchiectasis is the term used to refer to dilatation of the bronchi that is usually permanent and is associated with a clinical syndrome of cough, sputum production and recurrent respiratory infections...
September 2016: Breathe
https://www.readbyqxmd.com/read/28210075/pancreatic-stellate-cell-pandora-s-box-for-pancreatic-disease-biology
#17
REVIEW
Ratnakar R Bynigeri, Aparna Jakkampudi, Ramaiah Jangala, Chivukula Subramanyam, Mitnala Sasikala, G Venkat Rao, D Nageshwar Reddy, Rupjyoti Talukdar
Pancreatic stellate cells (PSCs) were identified in the early 1980s, but received much attention after 1998 when the methods to isolate and culture them from murine and human sources were developed. PSCs contribute to a small proportion of all pancreatic cells under physiological condition, but are essential for maintaining the normal pancreatic architecture. Quiescent PSCs are characterized by the presence of vitamin A laden lipid droplets. Upon PSC activation, these perinuclear lipid droplets disappear from the cytosol, attain a myofibroblast like phenotype and expresses the activation marker, alpha smooth muscle actin...
January 21, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28209920/effect-of-captopril-on-radiation-induced-tgf-%C3%AE-1-secretion-in-ea-hy926-human-umbilical-vein-endothelial-cells
#18
Jingni Wei, Hui Xu, Yinyin Liu, Baiyu Li, Fuxiang Zhou
The pathophysiological mechanism involved in the sustained endothelial secretion of cytokines that leads to fibrosis 6-16 months after radiotherapy remains unclear. Angiotensin II (Ang II) is produced by the endothelium in response to stressing stimuli, like radiation, and may induce the synthesis of TGF-β, a profibrotic cytokine. In this study we tested the hypothesis that captopril, an angiotensin-converting enzyme (ACE) inhibitor, inhibits or attenuates radiation-induced endothelial TGF-β1 secretion. The human endothelial hybrid cell line EA...
February 15, 2017: Oncotarget
https://www.readbyqxmd.com/read/28209809/macrophage-to-myofibroblast-transition-contributes-to-interstitial-fibrosis-in-chronic-renal-allograft-injury
#19
Ying-Ying Wang, Hong Jiang, Jun Pan, Xiao-Ru Huang, Yu-Cheng Wang, Hong-Feng Huang, Ka-Fai To, David J Nikolic-Paterson, Hui-Yao Lan, Jiang-Hua Chen
Interstitial fibrosis is an important contributor to graft loss in chronic renal allograft injury. Inflammatory macrophages are associated with fibrosis in renal allografts, but how these cells contribute to this damaging response is not clearly understood. Here, we investigated the role of macrophage-to-myofibroblast transition in interstitial fibrosis in human and experimental chronic renal allograft injury. In biopsy specimens from patients with active chronic allograft rejection, we identified cells undergoing macrophage-to-myofibroblast transition by the coexpression of macrophage (CD68) and myofibroblast (α-smooth muscle actin [α-SMA]) markers...
February 16, 2017: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/28209733/dual-function-of-tgf%C3%AE-in-lens-epithelial-cell-fate-implications-for-secondary-cataract
#20
Bruce A Boswell, Anna Korol, Judith A West-Mays, Linda S Musil
The most common vision-disrupting complication of cataract surgery is posterior capsule opacification (PCO; secondary cataract). PCO is caused by residual lens cells undergoing one of two very different cell fates: either transdifferentiating into myofibroblasts, or maturing into lens fiber cells. Although TGFβ has been strongly implicated in lens cell fibrosis, the factors responsible for the latter process have not been identified. We show here for the first time that TGFβ can induce purified primary lens epithelial cells within the same culture to undergo differentiation into either lens fiber cells or myofibroblasts...
February 16, 2017: Molecular Biology of the Cell
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