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Alterations in DNA repair gene expression and their possible regulation in rat-liver regeneration Genet. Mol. Biol.
Wang,Gai-Ping; Xu,Cun-Shuan.
Rapidly proliferating tissue may require enhanced DNA repair capacity in order to avoid fixation of promutagenic DNA lesions to mutations. Partial hepatectomy (PH) triggers cell proliferation during liver regeneration (LR). However, little is known on how DNA repair genes change and how they are regulated at the transcriptional level during LR. In the present study, the Rat Genome 230 2.0 array was used to detect the expression profiles of DNA repair genes during LR, and differential expression of selected genes was confirmed by real-time RT-PCR. 69 DNA repair genes were found to be associated with LR, more than half of which distributed in a cluster characterized by a gradual increase at 24-72h and then returning to normal. The expression of base excision...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Partial hepatectomy; Rat genome array; DNA repair genes; Liver regeneration.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572011000200023
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Effect of hyperbaric oxygenation on the regeneration of the liver after partial hepatectomy in rats BJMBR
Kurir,T.T.; Markotic,A.; Katalinic,V.; Bozanic,D.; Cikes,V.; Zemunik,T.; Modun,D.; Rincic,J.; Boraska,V.; Bota,B.; Salamunic,I.; Radic,S..
The aim of the present study was to assess the influence of hyperbaric oxygenation (HBO) on rat liver regeneration before and after partial hepatectomy. Rats were sacrificed 54 h after 15% hepatectomy, liver and body weights were measured, and serum alanine transaminase (ALT) and aspartate transaminase (AST) activity and albumin levels were determined. The lipid peroxide level, as indicated by malondialdehyde production in the remnant liver was measured, and liver sections were analyzed by light microscopy. Five groups of 10 rats in each group were studied. The preHBO and pre-hyperbaric pressure (preHB) groups were treated before partial hepatectomy with 100% O2 and 21% O2, respectively, at 202,650 pascals, daily for 3 days (45 min/day). The control group...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Partial hepatectomy; Hyperbaric oxygenation; Liver regeneration; Alanine transaminase; Aspartate transaminase.
Ano: 2004 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2004000800014
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Hepatoprotective Effect of Quercetin Pretreatment Against Paracetamol-Induced Liver Damage and Partial Hepatectomy in Rats BABT
Barros,Pedro Paulo; Silva,Gustavo Henrique da; Gonçalves,Gisele Mara Silva; Oliveira,Jessica Cristiane; Pagnan,Livia Gonçalves; Arco-e-Flexa,Luiza.
ABSTRACT Quercetin has potent antioxidant action and a hepatoprotective role. The aim of this study was to evaluate the hepatoprotective action of quercetin pretreatment in paracetamol-induced liver damage (PILD) and structural injury resulting from partial hepatectomy (PH). In the first model, Wistar rats received oral quercetin (50mg/kg/day) during 8 days. On the 8th day, 3g/kg paracetamol were added. In the second model, the same quercetin dose was given during 7 days and rats were submitted to PH on the 8th day. Blood samples were obtained for determination of enzyme levels. Liver, heart, kidney and lung tissue were also collected for assessment of quercetin biodistribution and/or histological analyses. The results obtained after PILD were more...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Quercetin; Paracetamol; Partial hepatectomy; ALT; AST.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132017000100302
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Proteomic analysis of the regenerating liver following 2/3 partial hepatectomy in rats Biol. Res.
Chen,Xiao-Guang; Xu,Cun-Shuan.
BACKGROUND: Liver regeneration (LR) after 2/3 partial hepatectomy (PH) is one of the most studied models of cell, organ, and tissue regeneration. Although the transcriptional profile analysis of regenerating liver has been carried out by many reserachers, the dynamic protein expression profile during LR has been rarely reported up to date. Therefore, this study aims to detect the global proteomic profile of the regenerating rat liver following 2/3 hepatectomy, thereby gaining some insights into hepatic regeneration mechanism. RESULTS: Protein samples extracted from the sham-operated and the regenerating rat livers at 6, 12, 24, 72, 120 and 168 h after PH were separated by IEF/SDS-PAGE and then analyzed by MALDI-TOF/TOF mass spectrometry. Compared to...
Tipo: Journal article Palavras-chave: Partial hepatectomy; Rat liver regeneration; Proteomic; MALDI TOF/TOF MS.
Ano: 2014 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602014000100053
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