1.Malignant granular cell tumor of the urinary bladder.
Yan-zhen ZHUANG ; Xian-yi JIANG ; Pei-qiong CHEN
Chinese Journal of Pathology 2006;35(3):188-188
Cystectomy
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Fatal Outcome
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Female
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Glial Fibrillary Acidic Protein
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metabolism
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Granular Cell Tumor
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pathology
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secondary
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surgery
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Humans
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Immunohistochemistry
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Middle Aged
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S100 Proteins
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metabolism
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Urinary Bladder
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chemistry
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pathology
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surgery
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Urinary Bladder Neoplasms
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metabolism
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pathology
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surgery
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Vaginal Neoplasms
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metabolism
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secondary
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surgery
2.Congenital malignant melanoma in a neonate.
Hai-ping ZHANG ; Shan ZHONG ; Xian-yi JIANG ; Ming-ni YANG ; Pei-qiong CHEN
Chinese Journal of Pathology 2005;34(1):57-58
Follow-Up Studies
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Forearm
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Humans
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Infant, Newborn
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Male
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Melanoma
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congenital
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surgery
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Skin Neoplasms
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congenital
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surgery
3.Effect of history of open nephrolithotomy on percutaneous nephrolithotomy
Huimin ZHANG ; Qiong PEI ; Haijun CUI ; Lin WANG ; Jianhui LIU ; Bin GAO ; Shengyong CAI ; Peilin CHEN
Chinese Journal of Geriatrics 2011;30(7):578-580
Objective To investigate the effects of previous open nephrolithotomy on the technical features, outcomes and morbidities of subsequent percutaneous nephrolithotomy (PCNL). Methods Ninety-eight patients who underwent PCNL from January 2006 to January 2011 were selected in this study. The 34 patients of them who had previous open nephrolithotomy on the same kidney were assigned as group A, and the other 64 patients who had no previous open surgery as group B. The data of operation time, blood transfusion quantity, residual stones rate, hospitalization time and time of tube evulsion were collected and compared between the two groups. Results There were no significant differences between the group A and B with respect to the mean operative time [(84.0±24.6) min vs. (94.0±22.7) min, t=1.372, P=0.177], hospitalization time [(6.5±1.1)days vs. (6.3±1.8)days, t=0.49, P=0.261], blood transfusion quantity [(82.9±10.6) ml vs. (85.0±11.8) ml, t=0.415, P=0.682], kidney and colostomy channels [single channel(70.6% vs. 75.0%), double channel (29.4% vs. 25.0%), χ2 =0.22, P=0.638] and residual stones rate (5% vs. 3%,χ2=0.42, P=0.282). Conclusions When PCNL is performed after previous open nephrolithotomy, there is no difference in success rate and morbidities.
4.Parotid gland carcinosarcoma: report of a case.
Hai-ping ZHANG ; Hai-fang ZHANG ; Pei-qiong CHEN
Chinese Journal of Pathology 2011;40(10):703-704
Carcinosarcoma
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metabolism
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pathology
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radiotherapy
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surgery
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Follow-Up Studies
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Humans
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Keratins
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metabolism
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Ki-67 Antigen
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metabolism
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Male
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Middle Aged
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Mucin-1
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metabolism
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Parotid Gland
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pathology
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surgery
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Parotid Neoplasms
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metabolism
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pathology
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radiotherapy
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surgery
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Radiotherapy, Adjuvant
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Vimentin
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metabolism
5.Cultivation of the Capability of Writing the Standardized Diagnostic Imaging Reports in Interns of the Medical Imaging Speciality
Long LI ; Pei-Lin LUO ; Fei XU ; Gang FENG ; Yan-Qiong CHEN ;
Chinese Journal of Medical Education Research 2006;0(10):-
The article summarized the teaching experience to cultivate the capability of writing the standardized diagnostic imaging reports in the internes of the medical imaging speciality.The need and content of diagnostic imaging reports was standardized.The skill to read image and the capability to write the standardized diagnostic imaging report was cultivated gradually by three phases composed of the accidence phase,and the improve phase and the practice phase.
6.Microscopic Raman spectral characteristics and diagnostic value of pathological lip minor salivary glands affected in primary Sjögren's syndrome.
Li-li XUE ; Dong-chen OU ; Pei-qiong CHEN ; Mei-qing CHEN ; Pei SUN
Chinese Journal of Stomatology 2013;48(8):477-480
OBJECTIVETo investigate the Raman spectral characteristics of the pathological lip minor salivary glands affected in primary Sjögren's syndrome.
METHODSThirty pathological samples and 30 normal samples were collected in this study. The samples were examined by Raman microscope.Support vector machine(SVM) was employed to analyze the data and establish the classification model.
RESULTSThe spectra of pathological tissues was different from the controls in proteins, nucleic acids, lipids and glycogen skeleton. The sensitivity, specificity and accuracy of the model established by SVM on the training sets were all 92.0% (92/100), but the sensitivity, specificity and accuracy of the model established by SVM on the testing sets were 69.2% (37/53), 100.0% (37/37) and 82.0% (73/89) respectively.
CONCLUSIONSThere was significant difference in Raman spectra between the pathological and normal lip salivary glands, and the classification model established by SVM could discriminate the pathological glands from the normal ones.
Female ; Glycogen ; metabolism ; Humans ; Keratins ; metabolism ; Lip ; metabolism ; pathology ; Lipids ; analysis ; Male ; Middle Aged ; Nucleic Acids ; metabolism ; Salivary Glands, Minor ; metabolism ; pathology ; Sjogren's Syndrome ; diagnosis ; metabolism ; pathology ; Spectrum Analysis, Raman ; methods
7.Identification of EST-SSRs in Taxus cuspidata based on high-throughput sequencing.
Qiong WU ; Xiao-Qun DUAN ; Xu CHEN ; Pei-Gen XIAO
China Journal of Chinese Materia Medica 2012;37(24):3728-3733
OBJECTIVETaxus species are highly valued for the production of taxol. Based on high-throughput sequenceing, EST-SSRs were explored and studied in the transcriptome of Taxus cuspidata.
METHODT cuspidata leaf cDNA was extracted and sequenced by 454 GS FLX Titanium. High-quality sequences were assembled using Newbler Assembler Software, which produced unique sequences. SSRs motif was explored using simple sequence repeat identification tool (Perl Script). Primers were designed using PRIMER3.
RESULTA total of 81 148 high-quality reads from the needles of T. cuspidata were produced using the Roche GS FLX Titanium system. A total of 20 557 unique sequences were obtained. There were 753 simple sequence repeat motifs identified. Primers of PCR were obtained for 519 EST-SSRs, randomly selected cloning sequencing revealed that 87.5% of ESTs were the same as the results of Sanger sequencing.
CONCLUSIONThe results provide the first EST-SSRs collection in Taxus and are essential for future efforts of gene discovery, functional genomics, and genome annotation in related species.
DNA Primers ; genetics ; Expressed Sequence Tags ; Gene Expression Profiling ; methods ; Gene Expression Regulation, Plant ; High-Throughput Nucleotide Sequencing ; methods ; Microsatellite Repeats ; genetics ; Taxus ; genetics ; Transcriptome ; genetics
8.Expression of PTEN protein and its correlation with p27kip1 and cyclin D1 expression in primary breast cancer.
Qin LIN ; Yan-zhen ZHUANG ; Dong-po XU ; Jian-xin YE ; Pei-qiong CHEN
Chinese Journal of Oncology 2003;25(3):246-249
OBJECTIVETo study the expression of phosphatase and tensin homology deleted on chromosometen ten (PTEN) protein, a tumor suppressor gene in breast cancer and its correlation with p27(kip1) and cyclin D1 expression.
METHODSPTEN protein expression, p27(kip1) and cyclin D1 protein expression were detected by immunohistochemical method in paraffin sections from 61 women with primary breast cancer. PTEN protein expression was compared with clinico-pathologic parameters as related to p27(kip1) and cyclin D1.
RESULTSPTEN, being shown in the cytoplasm, was negative in 6.6% (4/61), reduced in 41.0% (25/61) and positive in 52.5% (32/61) samples. PTEN expression level was correlated with axillary lymph node status, loss of estrogen receptor stain, recurrence and metastasis. On univariate analysis, the disease-free survival rate of patients with higher PTEN expression (> 50% cells stained) was better than those with lower expression (P = 0.0101). However, there was no correlation between p27(kip1), cyclin D1 expression or PTEN expression.
CONCLUSIONPTEN, its lower expression being correlated with poor outcome of breast cancer patients, plays a prominent role in breast cancer. p27(kip1) or cyclin D1 may not be the primary downstream genes of PTEN in breast cancer.
Adult ; Aged ; Breast Neoplasms ; chemistry ; mortality ; pathology ; Cyclin D1 ; analysis ; physiology ; Cyclin-Dependent Kinase Inhibitor p27 ; Female ; Humans ; Immunohistochemistry ; Intracellular Signaling Peptides and Proteins ; analysis ; physiology ; Lymphatic Metastasis ; Middle Aged ; PTEN Phosphohydrolase ; analysis ; physiology ; Prognosis
9.Analysis of impact factors for post-thaw embryo survival rate and clinical pregnancy rate of frozen-thawed embryo transfer program
Ning, YAO ; Ju-fen, ZHENG ; Zu-qiong, XIANG ; Lei-wen, ZHAO ; Xiao-ming, ZHAO ; Yun, SUN ; Yan, HONG ; Pei, CHEN
Journal of Shanghai Jiaotong University(Medical Science) 2009;29(6):729-732
Objective To explore the impact factors for post-thaw embryo survival rate and clinical pregnancy rate in frozen-thawed embryo transfer program. Methods The clinical data of 573 cycles of frozen-thawed embryo transfers were retrospectively analysed. Groups were divided according to the pre-freeze embryo quality, pre-freeze embryonic developmental stage, frozen-thawed embryo quality and cryopreservation technique, respectively, and post-thaw embryo survival rates and/or clinical pregnancy rates were compared among groups. Results The clinical pregnancy rate of high quality pre-freeze embryo was significantly higher than that of low quality pre-freeze embryo (31.8% vs 20.0%) (P< 0.05). There was no significant difference in the post-thaw survival rates and clinical pregnancy rates between embryos frozen at day 2 of ferrtilization and those frozen at day 3 of ferrtilization(79. 1% vs 82.9% and 25.5% vs 31.2%, respectively) (P>0.05). The clinical pregnancy rates of the transfer cycles only with fully intact embryos and with mixed embryos were significantly higher than that only with partially damaged embryos(36.7% vs 24.1% and 29.2% vs 24.1%, respectively)(P<0.05). The post-thaw survival rate and post-thaw high-quality embryo rate were significantly higher in those processed with modified cryopreservation technique than in those processed with original cryopreservation technique (82.0% vs 66.3% and 50.0% vs 27.5%, respectively)(P<0.05). Conclusion Pre-freeze embryo quality, post-thaw embryo survival rate and post-thaw embryo quality have a positive correlation to subsequent clinical pregnancy rate. Favorable cryopreservation technique may ensure the success of post-thaw embryo recovery and transfer.
10.Expression of Musashi2 gene in de novo acute myeloid leukemia and its clinical implications.
Ying LU ; Mengxia YU ; Qitian MU ; Renzhi PEI ; Qiong WANG ; Zhimei CHEN ; Jie JIN
Chinese Journal of Medical Genetics 2014;31(6):713-718
OBJECTIVETo explore the expression and clinical significance of Musashi2 (MSI2) gene in de novo acute myeloid leukemia (AML).
METHODSReal-time quantitative PCR (RQ-PCR) was used to measure the expression of MSI2 gene in 181 de novo AML patients. Correlation between the expression level and clinical features of such patients was explored.
RESULTSTranscript of the MSI2 gene was detected in 181 AML patients, with the median expression level being 2.341 (0.1124-58.8566). By contrast, CD34+ cells from 10 healthy controls had a much lower expression level (P=0.012), and the expression level of MSI2 in 24 patients with complete remission was significant lower than de novo patients (P=0.021). Based on the median expression level, such patients were divided into low expression group and high expression group. Patients from the high expression group had significantly higher rate of high white blood cell count (78% vs. 63%, P=0.034). Compared with MSI2-low group, FLT3-ITD mutation were much more common in MSI2-high group (28% vs. 7%, P=0.002). The expression level of MSI2 in aberrant karyotypes was much higher than that in favorable karyotypes (the median expression level was 2.7726 and 2.0733, P=0.035). Kaplan-Meier analysis showed that the overall survival in high expression group of MSI2 was lower than the low expression group, with the median survival time being 28 months and 12 months, respectively (P=0.045).
CONCLUSIONDe novo AML patients have a higher level of MSI2 gene expression. And the latter is much more common in those with high white blood cell count and aberrant karyotypes, and has a positive correlation with FLT3-ITD mutation. High expression of MSI2 gene may be a predictor for poorer prognosis among AML patients.
Adolescent ; Adult ; Aged ; Aged, 80 and over ; Female ; Humans ; Leukemia, Myeloid, Acute ; genetics ; metabolism ; Male ; Middle Aged ; Mutation ; RNA-Binding Proteins ; genetics ; metabolism ; Young Adult