1.Abdominal imaging in AIDS patients
Da-Wei ZHAO ; Tong ZHANG ; Wei WANG ; Chun-Wang YUAN ; Cui-Yu JIA ; Xuan ZHAO ; Da-Qing MA ;
Chinese Journal of Radiology 2001;0(03):-
Objective To evaluate abdominal imaging in AIDS.Methods The imaging examinations(including US,CT and MR)of 6 patients with AIDS associated abdominal foci were analysed retrospectively.All the cases were performed US,and CT scan,of which 4 performed enhanced CT scan and 1 with MR.Results Abdominal tuberculosis were found in 4 patients,including abdominal lymph nodes tuberculosis(3 cases)and pancreatic tuberculosis(1 case).The imaging of lymph nodes tuberculosis typically showed enlarged peripheral rim enhancement with central low-attenuation on contrast-enhanced CT. Pancreatic tuberculosis demonstrated low-attenuation area in pancreatic head and slightly peripheral enhancement.Disseminated Kaposi's sarcoma was seen in 1 case:CT and MRI scan demonstrated tumour infiltrated along hepatic portal vein and bronchovascular bundles.Pelvic tumor was observed in 1 case:CT scan showed large mass with thick and irregular wall and central low attenuation liquefacient necrotic area in the pelvic cavity.Conclusion The imaging findings of AIDS with abdominal foci is extraordinarily helpful to the diagnosis of such disease.Tissue biopsy is needed to confirm the diagnosis.
3.Modified parapetrosal presigmoid approach to facial nerve canal decompression of facial nerve palsy
Da-Wei LI ; Qing-Feng ZHANG ; Dong CHEN ; Yi-Feng TONG ;
Chinese Journal of Trauma 2003;0(11):-
Objective To discuss the surgical outcome and operative technique of the modified trans-petrosal presigmoid approach in treating cases with facial nerve palsy after petral bone fracture trea- ted with facial nerve canal decompression method.Methods A total of 15 cases with facial nerve pal- sy were treated with traumatic facial nerve canal decompression technique with the trans-petrosal presig- mold approach combined with high-dose hormone therapy,whereas 12 cases were treated with traditional Chinese medicine.The clinical data were analysed and compared retrospectively according to House- Brackmann facial nerve grading scale.Results At acute stage,eight(53.3%)out of 15 cases recov- ered to levelⅠ(P<0.05),with no significant postoperative complications such as CSF leakage. Conclusions This approach is simple and safe and can expose extensively the facial nerve bone canal and effectively alleviate the edemous facial nerve aided by high-dose hormone therapy.Therefore,it is suitable for surgical treatment of acute facial nerve palsy after petral bone fractures.
4.Effect of injectable Xuebijing on proliferation of murine brain microvascular endothelial cell line bEnd.3
Lei SHEN ; Zheng-Da SUN ; Tong-Wa CAO ; Wei BIAN ; He-Chen ZHU ;
Chinese Journal of Emergency Medicine 2006;0(12):-
Objective To investigate the effect of injectable Xuebijing on the proliferation of mouse brain microvascular endothelial cell in vitro.Methods Cultured mouse brain microvascular endothelM cell line bEnd. 3 was treated by injectable Xuebijing of different concentrations,0 (control),5,25 and 50 mg/ml.The regulatory. effect of Xuebijing on the proliferation of cell line bEnd.3 was observed and studied by means of MTT method and cell cycle analyzed with flow cytometry.Results Compared to the control group,MTT and proliferation index (PI) of 5 and 25 mg/ml groups were significantly increased at 12 and 24 h,and PI,but not MTT,of these 2 groups was decreased remarkably at 48 h.Meanwhile,50 mg/ml group showed significantly decreased MTT at 24 and 48 h,and PI of this group was increased obviously at 12 and 24 h,but decreased significantly at 48 h. Conclusions Injectable Xuebijing at certain concentrations might promote the proliferation of cultured mouse brain microvascular endothelial,cells within specific time frame.
5.Investigating the teaching methodology of English for science and technology in the major of biomedical engineering
Da JING ; Erping LUO ; Kangning XIE ; Guanghao SHEN ; Chi TANG ; Xiaoming WU ; Wei GUO ; Juan LIU ; Shichao TONG
Chinese Journal of Medical Education Research 2015;(1):91-93
English for science and technology (EST) is the language medium for academic communication among scientists and technologists. The expression of EST is characterized by concise-ness, correctness, objectiveness and understandability. The EST course is regarded as a key process for the undergraduate students to reinforce the English foundation and improve the capacity of English application after their College English study. In this paper, the authors introduced an interest-motivated, output-dominated, snowballing and interactive teaching strategy, according to the accumulated experi-ence of EST teaching in the past few years coupled with the unique medicine-engineering combined characteristics for the major of biomedical engineering.
6.Distribution of tap1 and tap2 loci allelic and genotypic frequencies in Chinese Hans.
Wu SHEN ; Tong SHEN ; Biao YIN ; Jie-Wei ZHENG ; Da-Zhuang LIU ; Ming-Liang FENG
Journal of Experimental Hematology 2009;17(3):777-781
This study was aimed to investigate the distribution and implication of tap1 (transporter associated with antigen processing) and tap2 loci allelic and genotypic frequencies. The distribution of tap1 and tap2 loci allelic and genotypic frequencies in 339 random samples of healthy Chinese Hans was analyzed by TaqMan PCR. Several genetic information about power of discrimination, cumulative DP, polymorphism information content, expected heterozygosity and observed heterozygosity were calculated. The results indicated that 5 tap1 alleles (tap1*0101, 020101, 020102, 0301 and 0401) and 4 tap2 alleles (tap2*0101, 0102, 0103 and 0201) were detected in all samples. 8 tap1 genotypes were found which account for 53.3% of the theoretic genotype and 6 tap2 genotypes were found which account for 60% of the theoretic genotype. The genotyping results of tap1 and tap2 both conform to the Hardy-Weinberg expectations (p > 0.05). Tap1*0101 (79.79%) and tap2*0101 (82.74%) are the most common alleles in Chinese Hans. It is concluded that tap1*0101 and tap2*0101 are most common alleles in Chinese Hans, tap1 and tap2 loci carry some power of individual discrimination and polymorphism information content. These two locl can be used for the research in the fields of human genetics, linkage analysis of genetic disease genes, paternity test and individual identification and so on.
ATP-Binding Cassette Sub-Family B Member 2
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ATP-Binding Cassette Transporters
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genetics
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ATP-Binding Cassette, Sub-Family B, Member 3
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Alleles
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Asian Continental Ancestry Group
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genetics
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Gene Frequency
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Genotype
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Haplotypes
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Humans
7.The expression and significance of glucose-6-phosphate isomerase mRNA in peripheral blood mononuclear cells of patients with rheumatoid arthritis
Guan-Fei ZHAO ; Yong-Zhe LI ; Yu-Guo SONG ; Chao-Jun HU ; Da-Wei TONG ; Shu-Lan ZHANG ;
Chinese Journal of Rheumatology 2001;0(04):-
Objective To investigate the mRNA level of glucose-6-phosphate isomerase(GPI)ex- pression in patients with rheumatoid arthritis(RA).Method Reverse transcription-polymerase chain reaction (RT-PCR)was applied to semiquantitatively analyze GPI mRNA expression in the peripheral blood mononu- clear cells(PBMCs)of 30 active RA patients,30 stable RA patients,30 patients with other rheumatic disease and 30 healthy subjects.Results There was statistically significant differences between patients with RA and other rheumatic diseases(P
8.Improved expression of human rotavirus VP6 antigen in the recombinant adenoviruse by codon optimization.
Da-Wei TONG ; Jing-Dong SONG ; Jian-Wei WANG ; Min WANG
Chinese Journal of Experimental and Clinical Virology 2011;25(6):420-422
OBJECTIVETo increase the recombinant adenovirus vector mediated human rotavirus VP6 gene expression through coden optimization.
METHODSWe have artificially synthesized VP6 gene of group A human rotavirus according to the human biased codon. The modified gene was transfected into 293 cells using adenovirus vector and the gene product, the respective protein was produced. The expression level of optimized gene and wild type gene was detected by Immunofluorescence (IF) and Western Blot.
RESULTA remarkable increase of the expression level of optimized VP6 gene in comparison with the wild-type control.
CONCLUSIONThe coden optimization indeed help increasing the recombinant adenovirus mediated human rotavirus gene expression, which indicated the potential application of such recombinant adenoviruses in the development of adenoviral-vectored rotavirus vaccines.
Adenoviridae ; genetics ; Antigens, Viral ; genetics ; Capsid Proteins ; genetics ; Codon ; Humans ; Recombinant Proteins ; biosynthesis
9.Analysis of TRRAP as a Potential Molecular Marker and Therapeutic Target for Breast Cancer.
Ji WANG ; Ming SHAN ; Tong LIU ; Qingyu SHI ; Zhenbin ZHONG ; Wei WEI ; Da PANG
Journal of Breast Cancer 2016;19(1):61-67
PURPOSE: This study was designed to assess the protein levels of transformation/transcription domain-associated protein (TRRAP) in invasive ductal breast carcinomas, and investigated the association between TRRAP and the clinicopathological features of breast cancer. METHODS: We examined TRRAP protein expression in 470 breast cancer tissues and normal breast tissues by tissue microarray to study the correlation between TRRAP expression and clinicopathological features. This was analyzed using the chi-square test. Kaplan-Meier survival curves and log-rank tests were applied to analyze the survival status. Cox regression was applied for multivariate analysis of prognosis. RESULTS: The data demonstrated that expression of TRRAP was significantly lower in breast carcinomas (36.6%) than in corresponding normal breast tissues (50.8%). In addition, TRRAP protein levels negatively correlated with tumor size, and indicated poor differentiation, increased nodal involvement, and low p53-positive rates. Analysis of survival revealed that lower TRRAP expression correlated with shorter survival time. Univariate analyses identified TRRAP and progesterone receptor as independent protective factors for breast cancer prognosis. However, Ki-67, tumor size, and nodal involvement appeared to be independent risk factors. CONCLUSION: The findings indicate a significant correlation between TRRAP protein levels and adverse prognosis in breast cancer. Therefore, TRRAP could be a prognostic biomarker for breast cancer. In addition, TRRAP is also a predictive biomarker of breast cancer treatment.
Biomarkers
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Breast Neoplasms*
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Breast*
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Kaplan-Meier Estimate
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Multivariate Analysis
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Prognosis
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Receptors, Progesterone
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Risk Factors