Zhongguo Shi Yan Xue Ye Xue Za Zhi
August 2023
Bactericidal/permeability-increasing protein (BPI) and lipopolysaccharide-binding protein (LBP) are a group of antibacterial proteins that play an important role in the host's innate immune defense against pathogen infection. In this study, two BPI/LBPs, named (1434 bp in length, 478 amino acids) and (1422 bp in length, 474 amino acids), were identified from the golden pompano. and were significantly expressed in immune-related tissues after being challenged with and .
View Article and Find Full Text PDFZhongguo Shi Yan Xue Ye Xue Za Zhi
December 2021
Objective: To investigate the difference expression of circular RNA (circRNA) in acute myeloid leukemia (AML) by using bioinformatics method.
Methods: The microarray chip data of AML was searched and downloaded from the Gene Expression Omnibus (GEO) of the National Center for Bioinformatics (NCBI). The differences between AML samples and control samples were analyzed by R software.
Zhongguo Shi Yan Xue Ye Xue Za Zhi
December 2020
Objective: To investigate the mechanisms of anti-apoptosis and immune evasion in drug-resistant leukemia cells mediated by STAT3, further to explore the possible mechanism of leukemia relapse caused by minimal residual.
Methods: Drug-resistance leukemia cell line was established by transfecting pcDNA3.1-STAT3 into K562 cells (K562/STAT3).
Zhongguo Shi Yan Xue Ye Xue Za Zhi
February 2020
Objective: To investigate the mutation of RUNX1 gene in patients with myelodysplastic syndrome (MDS) and its correlation with other gene mutations and some clinical parameters.
Methods: The mutations of RUNX1, DNMT3A, TET2, IDH1/2, NPM1, FLT3-ITD and C-KIT in 170 patients with MDS were detected by direct and indirect sequencing of genomic DNA-PCR amplification products.
Results: The RUNX1 mutation was found in 23 patients (13.
Zhongguo Shi Yan Xue Ye Xue Za Zhi
October 2019
Objective: To explore the coexisting mutations in IDH-mutated acute myeloid leukemia(AML) and its relation with partial clinical parametrs.
Methods: The exon 4 mutation of IDH1/2 gene was screened by using genome DNA-PCR combined with sanger sequencing, 51 targeted gene mutations in the patients with IDH1/2 mutation were detected by using high throughput DNA sequencing combined with sanger sequencing.
Results: Among 358 patients, the IDH1/2 mutation was found in 46 cases including IDH1 mutation in 35 cases and IDH2 mutation in 11 cases, 97.
X-linked adrenoleukodystrophy (X-ALD) is the most frequent type of inherited demyelinating peroxisomal disease caused by mutations in the ATP binding cassette subfamily D member 1 (ABCD1) gene. The rate of early recognition and genetic diagnosis of X-ALD remains low due to its variable clinical manifestations. The present study summarized the clinical features Chinese X-ALD patients and performed a follow-up study to further precisely characterize this disease.
View Article and Find Full Text PDFZhongguo Shi Yan Xue Ye Xue Za Zhi
October 2015
Zhongguo Shi Yan Xue Ye Xue Za Zhi
August 2015
Objective: To explore the expression of PXR (Pregnane X receptor) in several malignant hematological cell lines, and to investigate the reversal effect of Gambogic acid (GA) on multi-drug resistance (MDR) of K562/A02 cell line and its reversal mechanism.
Methods: Transcription of PXR was detected by real-time PCR in several malignant hematological cell lines. The growth inhibition rate of K562/A02 in different experimental groups was assayed by MTT method, and the expression of PXR protein was measured by Western blot.
Hepatitis B virus (HBV) infection results in different clinical presentation due to different levels of immune response. Our study aimed to characterize HBV full-length genome quasispecies (QS) in patients with different phases of infection to better understand its pathogenesis. Forty treatment-naive HBV-infected patients were enrolled, including 10 cases of acute hepatitis B (AHB), 9 cases of immunotolerant (IT) HBV carriers, 11 cases of chronic hepatitis B (CHB), and 10 cases of acute-on-chronic liver failure (ACLF).
View Article and Find Full Text PDFMultidrug resistance remains a serious clinical problem in the successful therapy of malignant diseases. It occurs in cultured tumor cell lines, as well as in human cancers. Therefore, it is critical to develop novel anticancer drugs with multidrug-resistance modulating potential to increase the survival rate of leukemia patients.
View Article and Find Full Text PDFZhongguo Shi Yan Xue Ye Xue Za Zhi
December 2013
This study was purposed to investigate the CIK cell cytotoxicity to hematological malignant cell lines by interaction NKG2D receptors and corresponding ligands. The CIK cells was expanded from healthy individual with interferon (IFN)γ, CD3 monoclonal antibodies (mAb) and interleukin-2 (IL-2). The subset of lymphocyte and the expression of NK cell receptors on CIK cells was detected by flow cytometry; NKG2D ligand expression on hematological malignant cell lines was also analyzed by flow cytometry, the calcein acetoxymethyl ester (CAM) was used for labeling target cells, then the cytotoxicity of CIK cells to hematological malignant cell lines was detected by flow cytometry.
View Article and Find Full Text PDFChin Med J (Engl)
January 2014
Background: Mono-(2-ethylhexyl) phthalate (MEHP), the metabolite of di-(2-ethylhexyl) phthalate (DEHP), was suspected to be toxic to human embryos. This study contributes to investigating its toxic effects by an embryonic stem cell test (EST) based on two human embryonic stem cell (hESCs) lines.
Methods: CH1 established in our own lab and H1, a federally registered cell line were two human embryonic stem cell lines used in this test.
Aim: To investigate the effectiveness of 5-flurouracil-based neoadjuvant chemotherapy (NAC) for gastroesophageal and gastric cancer by meta-analysis.
Methods: MEDLINE and manual searches were performed to identify all published randomized controlled trials (RCTs) investigating the efficacy of the flurouracil-based NAC for gastroesophageal and gastric cancer, and RCTs of NAC for advanced gastroesophageal and gastric cancer vs no therapy before surgery. Studies that included patients with metastases at enrollment were excluded.
Zhonghua Xue Ye Xue Za Zhi
June 2012
Objective: To investigate NK cell cytotoxicity to leukemic cell by NKG2D receptors and NKG2D ligands interaction upregulated by hydroxyurea (HU).
Methods: Leukemic cell lines OUN-1 and primary leukemic cells were cultured for 24 hours in the presence of HU, then the NKG2D ligands expressions were analyzed by flow cytometry (FCM). Isolated NK cells from healthy individual cultured for 72 hours in presence of IL-2 were used as effect cell, and leukemic cell line OUN-1 treated with HU was used as target cell, NK cell cytotoxicity against leukemic cell line was assessed using chromium-51 release assay.
Both tetrandrine (Tet) and 5-bromotetrandrine (BrTet) can effectively reverse P-glycoprotein (P-gp)-mediated multidrug resistance (MDR). The structure of multidrug resistance associated protein 7 (MRP7) has its own specificity and difference compared with other members of the MRP family. This study was aimed to investigate whether Tet and BrTet can inhibit the expression level of MRP7 so as to further look into the mechanisms of the reversal effects of Tet and BrTet on MDR.
View Article and Find Full Text PDFZhongguo Shi Yan Xue Ye Xue Za Zhi
April 2012
This study was purposed to investigate the reversal effect of gambogic acid (GA) on multidrug resistance of K562/A02 cells and its mechanism. The IC(50) (half maximal inhibitory concentration) of adriamycin (ADM) was evaluated by MTT. Cell apoptosis was detected by flow cytometry.
View Article and Find Full Text PDFThe Fold and Function Assignment System (FFAS) server [Jaroszewski et al. (2005) FFAS03: a server for profile-profile sequence alignments. Nucleic Acids Research, 33, W284-W288] implements the algorithm for protein profile-profile alignment introduced originally in [Rychlewski et al.
View Article and Find Full Text PDFThe protein universe can be organized in families that group proteins sharing common ancestry. Such families display variable levels of structural and functional divergence, from homogenous families, where all members have the same function and very similar structure, to very divergent families, where large variations in function and structure are observed. For practical purposes of structure and function prediction, it would be beneficial to identify sub-groups of proteins with highly similar structures (iso-structural) and/or functions (iso-functional) within divergent protein families.
View Article and Find Full Text PDFZhongguo Shi Yan Xue Ye Xue Za Zhi
February 2011
Shanghai Kou Qiang Yi Xue
October 2010
Purpose: To test the hypothesis that Cdk5/p35 plays important roles during trigeminal neuropathic pain.
Methods: Trigeminal neuralgia rat model was established with a chronic constriction injury (CCI) of the infraorbital branch of the trigeminal nerve (ION). The change of Cdk5 activity, expression of Cdk5 and p35 in Vc after CCI-ION were studied by Western blot, immunoprecipitation and Kinase assay.
Nan Fang Yi Ke Da Xue Xue Bao
September 2010
Objective: To evaluate the analgesic effect of Corydalis yanhusuo on trigeminal neuropathic pain.in a rat model.
Method: Rat model of trigeminal neuralgia pain were established by inducing chronic constriction injury (CCI) of the infraorbital branch of the trigeminal nerve (ION).
Shanghai Kou Qiang Yi Xue
August 2008
Purpose: To evaluate the different expression of Cdk5 two activators, p35 and p39 throughout rats Vc development.
Methods: The changes of Cdk5 activity, expression of Cdk5 and p39 in the development in spinal trigeminal subnucleus caudalis(Vc) were studied by Western blotting, immunoprecipitation and kinase assay. Statistical analysis was performed using SPSS11.
Shanghai Kou Qiang Yi Xue
February 2008
Osteoid Osteoma is rare in mandibular condyle. A case of osteoid osteoma in the condyle was reported in this paper. The clinical manifestation, radiographic characteristic, pathologic diagnosis were discussed.
View Article and Find Full Text PDFActa Biochim Biophys Sin (Shanghai)
August 2005
Horizontal gene transfer (HGT), a process through which genomes acquire genetic materials from distantly related organisms, is believed to be one of the major forces in prokaryotic genome evolution. However, systematic investigation is still scarce to clarify two basic issues about HGT: (1) what types of genes are transferred; and (2) what influence HGT events over the organization and evolution of biological pathways. Genome-scale investigations of these two issues will advance the systematical understanding of HGT in the context of prokaryotic genome evolution.
View Article and Find Full Text PDF