Research Article

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To study the impact of cold ischemia on tumor necrosis factor-alpha (TNF-α) and interleukin-10 (IL-10) expression after liver transplantation, a stable model of partial liver transplantation in rats was established. The experimental animals were divided into the following groups: a partial hepatectomy control group, a group that received partial liver transplantation after 30 min of cold ... more

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A strikingly upregulated expressed sequence tag was screened from regenerating rat liver at 8 h in a 0-4-8-12 h short-interval successive partial hepatectomy model from a previous study. In the present study, a full-length open reading frame (ORF) corresponding to this expressed sequence tag was predicted through electronic cloning and was subsequently cloned from an 8-h rat regenerating ... more

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Colony stimulating factors (CSF) have been considered to modulate liver regeneration (LR) after partial hepatectomy (PH) at the tissue level. However, it remains unclear about precise mechanism of action of CSF in regeneration at the cellular level. Therefore, eight rat liver cell types were isolated by Percoll gradient centrifugation and magnetic beads. CSF-mediated signaling pathway ... more

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Euglena gracilis; Reverse transcription-polymerase chain reaction; RNA isolation; Sodium dodecyl sulfate-Tris

RNA isolation is essential to the study of gene expression at the molecular level. However, it is difficult to isolate RNA from organisms that contain large amounts of polysaccharides or other compounds that bind or coprecipitate with RNA, such as the unicellular protist Euglena gracilis. Currently, there is no commercial kit available that is specific for the isolation of high- ... more

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Acute promyelocytic leukemia (APL) is characterized by a reciprocal translocation, t(15;17)(q22;q11-21), resulting in the fusion of the promyelocytic leukemia (PML) and retinoic acid receptor alpha (RARα) genes. Using conventional cytogenetic methods, these translocations are normally detected in about 70-90% of patients; most negative results are due to technical problems or ... more

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Ovarian-specific promoter 1 (OSP-1) is a retrovirus-like element isolated from the complementary DNA library of rat that has been thought to be specifically expressed in ovary. To exploit this promoter in dairy goat ovary granulosa cells (GCs), OSP-1 from rat was used to construct the reporter vector pOSP-1-EGFP, in which egfp coding for enhanced green fluorescent protein (EGFP) ... more

H.Y. Liu; M.M. Yang; Y.H. Cui; T. Ma; X.Q. Liu; L. Bai; W.P. Xiao; H.B. Zhao; J.Y. Peng; X.B. Hu; B.Y. Cao
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Hepatitis E is a form of endemic acute hepatitis found in humans in many countries worldwide and is caused by the hepatitis E Virus (HEV). Detection of HEV in pigs indicates that they may be carriers, possibly through zoonosis. The prevalence of HEV in pigs in Colombia is unknown. Studies in the US found that 11% of pig livers sold in grocery stores are contaminated with HEV. It is also ... more

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Apoptosis; Cell proliferation; FAS ligand (FASLG); Liver regeneration; MicroRNA-21 (miR-21)

Rat liver regeneration (RLR) induced by partial hepatectomy involves cell proliferation regulated by numerous factors, including microRNAs (miRNAs). miRNA high-throughput sequencing has been established and used to analyze miRNA expression profiles. This study showed that 39 miRNAs were related to RLR through the analysis of miRNA high-throughput sequencing. Their role toward rat normal ... more

J.J. Li; W.H. Chan; W.Y. Leung; Y. Wang; C.S. Xu