2.Application of in vivo electroporation technology in plasmid mediated gene transfer and DNA vaccination
Zhou ZHANG ; Zhiyong XU ; Pei CHEN ; Fang ZHOU ; Xiansheng ZHANG ; Yong LIU ; Yiming SHAO
Chinese Journal of Microbiology and Immunology 2010;30(6):551-554
Objective To investigate the effects of in vivo electroporation on plasmid mediated reporter gene expression and immunogenicity of DNA vaccine. Methods Luciferase expression plasmid was administered intramuscularly to BALB/c mice at 8μg and 40μg dosage level through injection with or without eletroporation Luciferase expression level in murine muscle was detected by IVIS imaging system 24 h after injection. DNA vaccine plasmid p1.0-gp1455m carrying codon-optimized env gene of CN54 strain ( HIV-1 CRF07_BC) was administered to mice at dosages of 8μg and 40μg through the two approaches mentioned above. Mice were immunized at week 0,2 and 4. Env-specific immune responses were detected at two weeks post the second and the third vaccinations. Env-specific antibody immune responses were determined by ELISA. Euv-specific cellular immune responses were determined by IFN-γ ELISPOT. Results Luciferase expression level in murine muscle was significantly increased as much as 35 folds through in vivo eletroporation. Results of ELISA and ELISPOT revealed that in vivo eletroporation could significantly enhance both the humoral and cellular immune responses induced by DNA vaccination. The responses induced by electrodelivered p1.0-gp1455m at 8 μg dosage were better than those induced by simple intramuscular injection with 40 μg of plasmid DNA. On the other hand, 2 injections followed by electroporation elicited comparable level of humoral and cellular immune responses with those induced by 3 injections without electroporation. Conclusion In vivo electroporation was capable of enhancing both the plasmid-mediated gene expression and immunogenicity of DNA vaccine.
3.Changes of Expressions of CD_(40) and CD_(40) Ligand to Graft-Versus-Host Disease after Allogeneic Hematopoietic Stem Cell Transplantation
chun, CHEN ; yan-feng, WU ; jing, WEI ; jian-pei, FANG ; shao-liang, HUANG
Journal of Applied Clinical Pediatrics 1993;0(03):-
Objective To explore the changes of CD40 and CD40 ligand(CD40L) levels and investigate their significances in children with graft-versus-host disease(GVHD)after related-donor human leukocyte antigen(HLA) matching allogeneic hematopoietic stem cell transplantation(HSCT).Methods Nineteen patients with ?-thalassemia major and 1 patient with congenital inherent hemolytic anemia accepted umbilical cord blood transplantation(UCBT) and allogeneic peripheral blood stem cell transplantation(allo-PBSCT),respectively,and all cases were received successfully related-donor human leukocyte antigen matching allogeneic HSCT.Peripheral blood samples were obtained before and after transplantation,the time when GVHD happened,the expressions of CD40 and CD40L were measured by using immunofluresence asssy.Results Four UCBT children and 3 allo-PBSCT children had no acute GVHD.Thirteen children had acute GVHD(degreeⅠ-Ⅳ),the expressions of CD40L on CD4+ and CD8+ T cells in the patients with acute GVHD increased,especially in allo-PBSCT.Five cases of UCBT and 12 cases of allo-PBSCT patients had chronic GVHD,the expressions of CD40L+,CD25+ and CD69+ on CD4+ and CD8+ T cells in patients with chronic GVHD increased obviously.The expression of CD19+CD40+ was lower than normal within 3 months after transplantation.Conclusions The high expression of CD40L+T cells in periferal blood after HSCT was related to the activation and proliferation of T cells in the development of GVHD in HSCT.
4.English translation of the title of ancient Chinese medical books and documents.
Fang ZENG ; Xin SHAO ; Pei-Hai ZHANG
Chinese Journal of Integrated Traditional and Western Medicine 2008;28(11):1038-1039
The title of a book is, generally, the high concentration of the writer's intention and the theme of content. Translate the title of an ancient Chinese medical book or document accurately and plainly is meaningful for exhibiting the style of the book, also for promoting the international communication of TCM. The principle should be followed is to choose the translating terms accurately to reveal the theme of content and express the cultural connotation of the book perfectly.
Books
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history
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China
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History, Ancient
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Medicine in Literature
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Medicine, Chinese Traditional
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history
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Terminology as Topic
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Translating
5.Hydroxyphthalimide induced medicamentosa-like dermatitis in five patients.
Jian-fang ZOU ; Shao-qiu SUN ; Yan-fei LI ; Yu-jun ZHAO ; Yan-qing PEI ; Guang-feng LIU
Chinese Journal of Industrial Hygiene and Occupational Diseases 2006;24(10):625-625
Adult
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Dermatitis, Occupational
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etiology
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Drug Eruptions
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etiology
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Humans
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Male
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Phthalimides
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adverse effects
7.Expression of circadian gene NPAS2 in colorectal cancer and its prognostic significance.
Shao-Fen YANG ; Ming XU ; Hai-Yun YANG ; Pei-Qin LI ; Xiu-Fang CHI
Journal of Southern Medical University 2016;36(5):714-718
OBJECTIVETo study the expression of NPAS2 in colorectal cancer (CRC) and analyze its relationship with the clinicopathological parameters and prognosis of the patients.
METHODSReal-time q-PCR was used to detect the expression of NPAS2 mRNA in 40 fresh CRC tissues and paired adjacent tissues; immunohistochemistry was used to detect the expression of NPAS2 protein in 120 paraffin-embedded tumor and adjacent tissues. The relationship between NPAS2 expression level and the 5-year survival rate of 78 CRC patients with follow-up data were analyzed with Kaplan-Meier survival analysis.
RESULTSCompared with the adjacent tissues, fresh CRC tissue expressed significantly lower NPAS2 mRNA levels (P<0.01). Among the paraffin-embedded CRC tissues, 19.2% were positive for NPAS2 expression, as compared to a much higher rate of 62.5% in the adjacent tissues (P<0.05). The expression of NPAS2 was correlated with the tumor size, lymph node metastasis and TNM stages (P<0.05) but not with the patients' gender, age, distant tumor metastasis, differentiation, or invasion. Patients with high NPAS2 expression levels had a significantly higher 5-year survival rate than those with low NPAS2 expressions (P=0.0001).
CONCLUSIONNPAS2 is down-regulated in CRC and closely correlated with the malignant biological behavior of the tumor and 5-year survival of the patients, suggesting its value in predicting the prognosis of the CRC patients.
Basic Helix-Loop-Helix Transcription Factors ; metabolism ; Colorectal Neoplasms ; diagnosis ; metabolism ; Down-Regulation ; Humans ; Immunohistochemistry ; Kaplan-Meier Estimate ; Lymphatic Metastasis ; Nerve Tissue Proteins ; metabolism ; Prognosis ; RNA, Messenger ; Real-Time Polymerase Chain Reaction ; Survival Rate
8.Association of the relationship between HLA-DQB1 alleles and major beta-thalassemia in 42 guangdong Chinese.
Rong BAO ; Chun CHEN ; Jian-Pei FANG ; Shao-Liang HUANG
Journal of Experimental Hematology 2002;10(1):87-88
To investigate the relationship between HLA-DQB1* alleles and major beta-thalassemia, the HLA-DQB1* loci typing was performed with polymerase chain reaction-sequence specific primer (PCR-SSP) in 42 unrelated (unconsanguineous) patients with major beta-thalassemia and 45 normal control individuals in Guangdong Province. Results showed that the frequency of HLA-DQB1*06 allele in patient group (19.0%) was higher than that in the control group (4.4%) kappa(2) = 8.961, p < 0.01). Our data suggests that HLA-DQB1*06 allele is associated with pathogenesis of the major beta-thalassemia in Guangdong area.
Alleles
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Asian Continental Ancestry Group
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genetics
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Female
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Gene Frequency
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Genetic Predisposition to Disease
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HLA-DQ Antigens
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genetics
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HLA-DQ beta-Chains
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Humans
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Male
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beta-Thalassemia
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genetics
9.The quality specification of grape seed extract.
Yun-Dong SHAO ; Wen-Yuan GAO ; Yan-Fang SU ; Pei-Gen XIAO
China Journal of Chinese Materia Medica 2005;30(18):1406-1408
This paper reiviewed the current situation of quality control of grape seed extract in domestic and international market. Considering the fact that there is no national or industrial technical specifications established for the extract product, the authors suggested that two sets of quality specifications should be established for the grape seed extract. The two sets of specifications are: the high purity grape seed extract should contain polyphenol NLT 95%, monomer NLT 10%; and the grape seed extract with ordinary quality should have a procyanidolic value NLT 95, and monomer NLT 6%.
Antioxidants
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chemistry
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isolation & purification
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standards
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Biflavonoids
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analysis
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isolation & purification
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Catechin
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analysis
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isolation & purification
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Flavonoids
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analysis
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isolation & purification
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Phenols
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analysis
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isolation & purification
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Plant Extracts
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chemistry
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isolation & purification
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standards
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Polyphenols
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Proanthocyanidins
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analysis
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isolation & purification
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Quality Control
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Seeds
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chemistry
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Vitis
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chemistry
10.Correlation of adiponectin, monocyte chemoattractant protein-1, and endothelial function to vascular remodeling in coronary in-stent restenosis.
Zhi-bing WANG ; Jun LIU ; Shao-yuan CHEN ; You-su SU ; Pei-yi XIE ; Hong-cheng FANG
Journal of Southern Medical University 2010;30(4):912-914
OBJECTIVETo investigate the correlation between vascular remodeling index (RI) and serum adiponectin, plasma monocyte chemoattractant protein-1 (MCP-1), endothelial function and evaluate the mechanism of coronary in-stent restenosis.
METHODSRI 6 months after percutaneous coronary intervention (PCI), serum adiponectin, plasma MCP-1 and flow-mediated dilation (FMD) before and 3 days,6 months after PCI were measured in 30 patients with and 30 without coronary in-stent restenosis.
RESULTSCompared with patients without restenosis and those with restenosis before PCI, the patients with coronary in-stent restenosis showed significantly increased plasma MCP-1 3 days and 6 months after PCI (P<0.05) and reduced RI 6 months after PCI, serum adiponectin and FMD 3 days and 6 months after PCI (P<0.05). RI was positively correlated to serum adiponectin and FMD and inversely to MCP-1.
CONCLUSIONThe occurrence of coronary in-stent restenosis is the result of the interrelations between multiple factors.
Adiponectin ; blood ; Adult ; Aged ; Angioplasty, Balloon, Coronary ; Chemokine CCL2 ; blood ; Coronary Disease ; blood ; physiopathology ; therapy ; Coronary Restenosis ; blood ; etiology ; Endothelium, Vascular ; physiopathology ; Female ; Humans ; Male ; Middle Aged ; Stents ; adverse effects