|
|
|
| Registros recuperados: 20 | |
|
| |
|
|
| Lu,W.; Kang,J.; Hu,K.; Tang,S.; Zhou,X.; Yu,S.; Xu,L.. |
| We aimed to study the renal injury and hypertension induced by chronic intermittent hypoxia (CIH) and the protective effects mediated by angiotensin 1-7 [Ang(1-7)]. We randomly assigned 32 male Sprague-Dawley rats (body weight 180-200 g) to normoxia control, CIH, Ang(1-7)-treated normoxia, and Ang(1-7)-treated CIH groups. Systolic blood pressure (SBP) was monitored at the start and end of each week. Renal sympathetic nerve activity (RSNA) was recorded. CTGF and TGF-β were detected by immunohistochemistry and western blotting. Tissue parameters of oxidative stress were also determined. In addition, renal levels of interleukin-6, tumor necrosis factor-α, nitrotyrosine, and hypoxia-inducible factor-1α were determined by immunohistochemistry, immunoblotting,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ang(1-7); Renal injury; Obstructive sleep apnea; Inflammation; Oxidative stress; Fibrosis. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2017000100604 |
| |
|
| |
|
| |
|
|
| Ferreira-Machado,Samara C.; Salata,Camila; Rocha,Nazareth N.; Corrêa,Alexandre F.S.; Côrte-Real,Suzana; Peregrino,Antônio A.F.; Campos,Vera M.A. de; Andrade,Cherley B.V.; Bernardo-Filho,Mario; Cabral-Neto,Januário B.; Dealmeida,Carlos E.. |
| The caspase-3-cleaved presence was evaluated in this study in the heart of irradiated rats, during the decline of ventricular function. Female Wistar rats were irradiated with a single dose of radiation (15 Gy) delivered directly to the heart and the molecular, histological and physiological evaluations were performed at thirteen months post-irradiation. The expressions of procollagen type I, TGF-ß1 and caspase-3-cleaved were analyzed using Western blotting. Cardiac structural and functional alterations were investigated by echocardiography and electron microscopy. In the irradiated group, the levels of procollagen type I, TGF-ß1 and caspase-3-cleaved are increased. Significant histological changes (degeneration of heart tissue and collagen deposition) and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Apoptosis; Caspase-3; Fibrosis; Heart; Ionizing radiation; TGF-β1. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652013000100215 |
| |
|
|
| Codes,Liana; Matos,Ludmilla; Paraná,Raymundo. |
| The main injury caused by hepatitis C virus is the hepatic fibrosis, as a result of a chronic inflammatory process in the liver characterized by the deposit of components from the extracellular matrix. The fibrosis development leads to the modification of the hepatic architecture, of the hepatocellular function and to irregularities in the microcirculation. The tissue remodeling process observed in fibrosis has stellate cells, located at the space of Disse, as main acting agents. These cells, in response to a harmful stimulus, undergo phenotypic changes from non-proliferating cells to proliferating cells that express a- smooth-muscle actin (a-SMA), a process called as transdifferentiation. There are evidences that the oxidative stress is involved in the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Hepatitis C; Fibrosis; Estrogen; Benefits. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702007000300014 |
| |
|
| |
|
|
| Machado,Silmara Rodrigues; Parise,Edison Roberto; Carvalho,Luciana de. |
| The potential role of coffee as a hepatoprotective substance for chronic liver diseases has been widely discussed. Our main aim was to evaluate the effect of coffee intake regarding clinical, biochemical tests and liver biopsy data in treatment naïve patients with chronic hepatitis C. One hundred and thirty-six patients with chronic hepatitis C, diagnosed through liver biopsy, or by means of clinical, ultrasound or endoscopic signs of cirrhosis, were assessed by determination of biochemical tests, metabolic and morphological alterations. Food frequency was scrutinized by using a structured questionnaire. Coffee intake represented more than 90% of the total daily caffeine, and the 75th percentile was 4-Brazilian coffee-cup/day (>255mL/day or >123mg... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Coffee; Caffeine; Hepatitis C; Fibrosis. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702014000200170 |
| |
|
|
| Souza,R.M.; Freitas,L.A.R.; Lyra,A.C.; Moraes,C.F.; Braga,E.L.; Lyra,L.G.C.. |
| The objective of the present study was to determine the presence of hepatic iron overload in patients with chronic HCV infection and to correlate it with histologic alterations, HCV genotype and response to therapy. Liver tissue samples from 95 patients with chronic hepatitis C were divided into two groups: group I, presence of iron overload in hepatic tissue (Perls' staining) and group II, no iron overload. Hepatic iron overload was detected in 30 (31.6%) of 95 patients. Of the 69 patients tested by genotyping, 49 (71.01%) were genotype 1 and 20 (28.99%) genotype non-1. Iron overload was detected in 14 (28.6%) patients with genotype 1 and in 6 (30%) with genotype non-1 (P = 0.906). There was a significant difference in fibrosis stage between groups (P =... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Hepatitis C infection; Iron overload; Genotype; Inflammatory activity; Fibrosis; Antiviral therapy. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2006000100009 |
| |
|
|
| Silva,Giovanni Faria; Nishimura,Nancy F.; Coelho,Kunie Iabuki Rabello; Soares,Elza Cotrim. |
| Progression of chronic hepatitis C is known to be associated with some factors, but influence of HCV genotypes is still controversial. Association between HCV genotypes and other risk factors was examined to determine which factors are associated with progression of infection. One hundred consecutive anti-HCV positive volunteer blood donors were evaluated for several risk factors, examined for HCV genotypes, and submitted to hepatic biopsy and biochemical exams.HCV genotyping were carried out in 89 patients and hepatic biopsy in 78. Transmission routes were found to be illicit intravenous drug use (26%), Gluconergan® use in a non-safe manner (48%) and blood transfusion (15%). HCV genotype was 1 in 45%, 3 in 40%, and it was not associated with the stage of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Hepatitis C; Fibrosis; Risk factors. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702005000200004 |
| |
|
|
| Prado,Kleber; Patzina,Rosely; Bergamaschi,Denise; Focaccia,Roberto. |
| Chronic hepatitis C is often a progressive, fibrotic disease that can lead to cirrhosis and other complications. The recommended therapy is a combination of interferon and ribavirin. Besides its antiviral action, interferon is considered to have antifibrotic activity. We examined the outcome of hepatic fibrosis and inflammation in chronic hepatitis C patients who were non-responders to interferon. We made a case series, retrospective study, based on revision of medical records and reassessment of liver biopsies. For inclusion, patients should have been treated with interferon alone or combined with ribavirin, with no virological response (non responders and relapsers) and had a liver biopsy before and after treatment. Histological evaluation included:... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Chronic hepatitis C; Fibrosis; Interferon-alfa; Ribavirin; Treatment result. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702008000500004 |
| |
|
|
| Wang,Q.; Wang,L.X.; Zeng,J.P.; Liu,X.J.; Liang,X.M.; Zhou,Y.B.. |
| Liver cirrhosis is one of the most common diseases of Chinese patients. Herein, we report the high expression of a newly identified histone 3 lysine 4 demethylase, retinoblastoma binding protein 2 (RBP2), and its role in liver cirrhosis in humans. The siRNA knockdown of RBP2 expression in hepatic stellate cells (HSCs) reduced levels of α-smooth muscle actin (α-SMA) and vimentin and decreased the proliferation of HSCs; and overexpression of RBP2 increased α-SMA and vimentin levels. Treatment with transforming growth factor β (TGF-β) upregulated the expression of RBP2, α-SMA, and vimentin, and the siRNA knockdown of RBP2 expression attenuated TGF-β-mediated upregulation of α-SMA and vimentin expression and HSC proliferation. Furthermore, RBP2 was highly... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: RBP2; Liver cirrhosis; Fibrosis; Α-SMA; Vimentin; HSC. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2013000900739 |
| |
|
|
| Wang,Dong; Lu,Jian-Guo; Wang,Qing; Du,Xi-Lin; Dong,Rui; Wang,Peng; Zhao,Lei; Jiang,Xue; Yuan,Li-Juan. |
| YKL-40 has been identified as a growth factor in connective tissue cells and also a migration factor in vascular smooth muscle cells. To a large extent, the increase of serum YKL-40 is attributed to liver fibrosis and asthma. However, the relationship of the expression and clinical/prognostic significance of YKL-40 to the splenomegaly of patients with portal hypertension is unclear. In the present study, the expression of YKL-40 was studied by immunohistochemistry in 48 splenomegaly tissue samples from patients with portal hypertension and in 14 normal spleen specimens. All specimens were quickly stored at -80°C after resection. Primary antibodies YKL-40 (1:150 dilution, rabbit polyclonal IgG) and MMP-9 (1:200 dilution, rabbit monoclonal IgG) and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: YKL-40; MMP-9; Splenomegaly; Fibrosis; Portal hypertension; Immunohistochemistry. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2012000300013 |
| |
|
|
| Zhang,C.; Yuan,J.; Hu,H.; Chen,W.; Liu,M.; Zhang,J.; Sun,S.; Guo,Z.. |
| Kidney stone disease is a major cause of chronic renal insufficiency. The role of long non-coding RNAs (lncRNAs) in calcium oxalate-induced kidney damage is unclear. Therefore, we aimed to explore the roles of lncRNAs in glyoxylate-exposed and healthy mouse kidneys using microarray technology and bioinformatics analyses. A total 376 mouse lncRNAs were differentially expressed between the two groups. Using BLAST, 15 lncRNA homologs, including AU015836 and CHCHD4P4, were identified in mice and humans. The AU015836 expression in mice exposed to glyoxylate and the CHCHD4P4 expression in human proximal tubular epithelial (HK-2) cells exposed to calcium oxalate monohydrate were analyzed, and both lncRNAs were found to be upregulated in response to calcium... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Kidney calculi; Long non-coding RNAs; Fibrosis; Cell proliferation. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2018000100610 |
| |
|
|
| Siqueira,E.R.F.; Oliveira,C.P.M.S.; Correa-Giannella,M.L.; Stefano,J.T.; Cavaleiro,A.M.; Fortes,M.A.H.Z.; Muniz,M.T.C.; Silva,F.S.; Pereira,L.M.M.B.; Carrilho,F.J.. |
| The reduction of hepatic microsomal transfer protein (MTP) activity results in fatty liver, worsening hepatic steatosis and fibrosis in chronic hepatitis C (CHC). The G allele of the MTP gene promoter, -493G/T, has been associated with lower transcriptional activity than the T allele. We investigated this association with metabolic and histological variables in patients with CHC. A total of 174 untreated patients with CHC were genotyped for MTP -493G/T by direct sequencing using PCR. All patients were negative for markers of Wilson’s disease, hemochromatosis and autoimmune diseases and had current and past daily alcohol intake lower than 100 g/week. The sample distribution was in Hardy-Weinberg equilibrium. Among subjects with genotype 1, 56.8% of the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Hepatitis C; Steatosis; Fibrosis; Microsomal transfer protein. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2012000100012 |
| |
|
| |
|
|
| Stefano,J.T.; Pereira,I.V.A.; Torres,M.M.; Bida,P.M.; Coelho,A.M.M.; Xerfan,M.P.; Cogliati,B.; Barbeiro,D.F.; Mazo,D.F.C.; Kubrusly,M.S.; D'Albuquerque,L.A.C.; Souza,H.P.; Carrilho,F.J.; Oliveira,C.P.. |
| Liver fibrosis occurring as an outcome of non-alcoholic steatohepatitis (NASH) can precede the development of cirrhosis. We investigated the effects of sorafenib in preventing liver fibrosis in a rodent model of NASH. Adult Sprague-Dawley rats were fed a choline-deficient high-fat diet and exposed to diethylnitrosamine for 6 weeks. The NASH group (n=10) received vehicle and the sorafenib group (n=10) received 2.5 mg·kg-1·day-1 by gavage. A control group (n=4) received only standard diet and vehicle. Following treatment, animals were sacrificed and liver tissue was collected for histologic examination, mRNA isolation, and analysis of mitochondrial function. Genes related to fibrosis (MMP9, TIMP1, TIMP2), oxidative stress (HSP60, HSP90, GST), and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: NASH; Fibrosis; Mitochondrial dysfunction; Sorafenib. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2015000500408 |
| |
|
| |
|
|
| Chen,Y.; Yang,S.; Peng,Y.; Yang,Z.. |
| This study investigated the expression and regulation of IL-6R in hepatitis B-associated moderate hepatic fibrosis and cirrhosis. Liver tissues, peripheral blood monocytes (PBMs) and serum were collected from 26 hepatitis B patients with liver fibrosis and 35 hepatitis B patients with liver cirrhosis. The levels of Il-6r mRNA expression in these samples were examined by quantitative real-time PCR and IL-6R protein levels were analyzed by western blot and ELISA. MiRNAs that regulate IL-6R expression were predicted by bioinformatics analysis, and validated by dual luciferase reporter assay. Compared with the hepatic fibrosis group, IL-6R was significantly upregulated at both mRNA and protein levels in liver tissues, PBMs and serum samples from the hepatic... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: MiRNA-30b; IL-6 receptor; Chronic hepatitis B; Fibrosis; Cirrhosis. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2017001100610 |
| |
|
| |
| Registros recuperados: 20 | |
|
|
|
