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The use of light-emitting diodes to stimulate mitochondrial function and liver regeneration of partially hepatectomized rats 56
Castro-e-Silva,T.; Castro-e-Silva,O.; Kurachi,C.; Ferreira,J.; Zucoloto,S.; Bagnato,V.S..
The biostimulating effect of laser radiation has been observed in many areas of Medicine. However, there are still several questions to be answered, among them the importance of light coherence in the stimulatory process. In the present study, we used light-emitting diodes (LED) to promote the stimulation of liver regeneration after partial hepatectomy in rats. Fourteen male Wistar rats weighing 200-250 g were submitted to partial hepatectomy (70%) followed by LED light irradiation (630 nm) of the remaining part of the liver at two doses, i.e., 10 (N = 7) and 140 (N = 7) J/cm². A group irradiated with laser, 590 nm (N = 7, 15 J/cm²) was performed for the study of proliferating cell nuclear antigen-labeling index. Data are reported as mean ± SEM....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Liver; Mitochondria; Laser; Light-emitting diode; Liver regeneration; Proliferating cell nuclear antigen.
Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2007000800006
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alpha-Smooth muscle actin and proliferating cell nuclear antigen expression in focal segmental glomerulosclerosis: functional and structural parameters of renal disease progression 56
Geleilete,T.J.M.; Costa,R.S.; Dantas,M.; Coimbra,T.M..
The aim of the present study was to investigate the expression of alpha-smooth muscle actin (alpha-SM-actin) and proliferating cell nuclear antigen (PCNA) in renal cortex from patients with focal segmental glomerulosclerosis (FSGS) and their correlations with parameters of renal disease progression. We analyzed renal biopsies from 41 patients with idiopathic FSGS and from 14 control individuals. The alpha-SM-actin immunoreaction was evaluated using a score that reflected the changes in the extent and intensity of staining in the glomerular or cortical area. The PCNA reaction was quantified by counting the labeled cells of the glomeruli or renal cortex. The results, reported as median ± percentile (25th; 75th), showed that the alpha-SM-actin scores in the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Alpha-smooth muscle actin; Proliferating cell nuclear antigen; PCNA; Focal segmental glomerulosclerosis; Proteinuria; Renal failure; Renal disease progression; Renal fibrosis.
Ano: 2001 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2001000800003
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Analysis of p53 expression and proliferative assessment using PCNA in localized prostate carcinoma 56
Leite,K.R.M.; Srougi,M.; Nesralhah,L.J.; Camara-Lopes,L.H..
The surgical specimens from 51 men submitted to radical prostatectomy for localized prostate cancer were examined by immunohistochemistry using proliferation cell nuclear antigen (PCNA) monoclonal antibody to evaluate the proliferative index (PI). The relationship between PI, biological variables and p53 protein expression was evaluated by immunohistochemistry. PI was low in invasive localized prostate carcinoma (mean, 12.4%) and the incidence of PCNA-positive cells was significantly higher in tumors with p53 expression (P = 0.0226). There was no statistical difference in PCNA values when biological parameters such as Gleason score, tumor volume, extraprostatic involvement, seminal vesicle infiltration or lymph node metastasis were considered. We conclude...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Prostate carcinoma; P53; Proliferating cell nuclear antigen; PCNA.
Ano: 1999 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1999000300006
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Immunohistochemical and Histopathological Changes in the Skin of Rats after Administration of Lead Acetate 77
Sula,Bilal; Deveci,Engin; Özevren,Hüseyin; Ekinci,Cenap; Elbey,Bilal.
Lead acetate is a chemical compound. Sources of human exposure to this metal include many foods, drinking water and dust. The aim of this study was to determine the immunohistochemical and histopathological changes on the face skin after lead acetate application. Wistar Albino rats (180-200 g body weight) were divided into a controlled and lead acetate-exposed group. Rats received lead acetate at 500 ppm in their drinking water for 60 days. Both groups were fed with the same standard food, but lead acetate was added to the drinking water. During the experimental period, blood samples were drawn from the abdominal aorta of the anesthetised animals. At the end of exposure, body weight and blood lead levels were measured. Sections of rat facial skin were...
Tipo: Journal article Palavras-chave: Lead acetate; Skin; Proliferating cell nuclear antigen; Vimentin.
Ano: 2016 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022016000300017
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