2.Roles and applications of liquid-based cytology in sputum samples from lung cancer patients.
Lin CAI ; Li-zhu CHEN ; Qun CHEN ; Lian-ping WU ; Li-xiang HE ; Jing ZHENG
Chinese Journal of Pathology 2009;38(12):834-835
Adenocarcinoma
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diagnosis
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pathology
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Carcinoma, Squamous Cell
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diagnosis
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pathology
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Cytodiagnosis
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methods
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Cytological Techniques
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methods
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Female
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Humans
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Lung Neoplasms
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diagnosis
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pathology
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Male
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Middle Aged
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Small Cell Lung Carcinoma
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diagnosis
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pathology
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Sputum
3.Therapeutic effect of Chinese herbal medicines for nourishing blood and reinforcing shen in treating patients with anovulatory sterility of shen-deficiency type and its influence on the hemodynamics in ovarian and uterine arteries.
Yu-wei XIA ; Lian-xiang CAI ; Shu-cheng ZHANG
Chinese Journal of Integrated Traditional and Western Medicine 2004;24(4):299-302
OBJECTIVETo observe the clinical therapeutic effect of Nuzhen Yunyu Decoction (NYD, a Chinese recipe for nourishing blood and reinforcing Shen) and its influence on the hemodynamic parameters in ovarian and uterine arteries.
METHODSSixty-eight patients were randomly divided into two groups at the ratio of 2:1, 45 in the TCM group treated with Chinese medicine and 23 in the control group treated with clomiphene citrate. Menstrual cycle were taken as the indexes for clinical observation; basal body temperature, cervical mucus, vaginal exfoliative cells, serum hormones and B ultrasonic examination were taken as the indexes for ovulation and pregnancy assessment. The hemodynamic parameters of uterus and ovary were determined by using color Doppler ultrasonography, and the growth of follicles and ovulation, thickness of uterine endometrium were also monitored continuously.
RESULTSResults of 3 cycles treatment and 1 year follow-up study showed that the ovulation promoting rate, pregnancy rate and abortion rate in the two groups were similar, but the treated group showed better effects than that of control group, in such aspects as regulating menstruation, promoting growth and development of follicle, strengthening endometrium, improving blood supply and circulation of uterine and ovary (P < 0.05, P < 0.01).
CONCLUSIONNYD has the effects of ovulation promotion and holistic regulation of reproductive system.
Adult ; Anovulation ; drug therapy ; Drugs, Chinese Herbal ; therapeutic use ; Female ; Hemodynamics ; Humans ; Infertility, Female ; drug therapy ; etiology ; Ovary ; blood supply ; Ovulation Induction ; Phytotherapy ; Uterus ; blood supply ; Yin Deficiency ; drug therapy
4.Construction of an Inducible Expression and Secretion System for Neutral Protease in Bacillus subtilis
Min ZHANG ; Cong ZHAO ; Lian-Xiang DU ; Fu-Ping LU ; Xing-Wang CAI ;
China Biotechnology 2006;0(03):-
The promoter and signal peptide sequence of sacB gene (sacR gene) has been amplified by PCR.An inducible expression and secretion vector pHP13SN has been constructed with this amplified sequence,which was ligated with the pro-peptide and mature peptide of neutral protease gene on the vector pHP13.Transforming Bacillus subtilis DB104 with the vector pHP13SN, and the recombinant strain DB104(pHP13SN) can be got.The neutral protease gene has been expressed by the inducement of sucrose and the regulation of sacR,and the production has been secreted with bioactivity.
5.Relationship between CpG island methylator phenotype and genetic instability in sporadic colorectal cancer.
Guo-Xiang CAI ; Ye XU ; San-Jun CAI ; Ying-Qiang SHI ; Peng LIAN ; Jun-Jie PENG ; Zu-Qing GUAN ; Xiang DU
Chinese Journal of Gastrointestinal Surgery 2007;10(6):555-560
OBJECTIVETo explore the relationship between CpG island methylator phenotype(CIMP) and genetic instability in sporadic colorectal cancer(SCRC).
METHODSSeventy-one SCRC patients were enrolled in this study. Promotor methylation status of five genes including P14(ARF ), hMLH1, P16(INK4a), MGMT and MINT1 was detected with methylation specific PCR to confirm CIMP. Microsatellite instability (MSI) status was evaluated with two microsatellite loci of BAT25 and BAT26, and the ploidy was detected with flow cytometry. The association between CIMP and MSI as well as chromosomal instability(CIN) was examined.
RESULTSThe positive rates of CIMP, MSI and aneuploidy were 21.1% (15/71), 9.9% (7/71) and 73.5% (50/68) respectively. The positive rate of MSI in positive CIMP patients was higher than that in negative CIMP ones, but the difference was not significant (20.0% vs 7.1%,P=0.158). The positive rate of MSI was 57.1% in patients with hMLH1 gene promotor hypermethylation, which was significantly higher than that (4.7%) in patients without hMLH1 gene promotor hypermethylation (P=0.001). SCRCs with positive CIMP displayed significant inclination of diploidy (P=0.003). The positive rate of diploidy among SCRCs with CIMP was 61.5% while only 18.2% of cases without CIMP demonstrated diploid.
CONCLUSIONSSCRCs with positive CIMP are significantly more likely to be diploid. Simultaneous multiple genes hypermethylation represented by CIMP may be an epigenetic mechanism competing with the genetic mechanism of CIN.
Chromosomal Instability ; Colorectal Neoplasms ; genetics ; CpG Islands ; DNA Methylation ; Genome, Human ; Humans ; Microsatellite Instability ; Phenotype
6.Correlations of S100A4 and MMP9 expressions to infiltration, metastasis and prognosis of non-small cell lung cancer.
Xiang-li CHEN ; Lian-cai WANG ; Wang-gang ZHANG ; Xiao-yan CHEN ; Zhong-min SUN
Journal of Southern Medical University 2008;28(7):1254-1258
OBJECTIVETo observe the expressions of metastasis-associated protein (S100A4) and matrix metalloproteinase 9 (MMP9) in human non-small cell lung cancer (NSCLC) and investigate their correlations to the infiltration, metastasis and prognosis of NSCLC.
METHODSThe expressions of S100A4 and MMP9 were detected in 41 NSCLC specimens and 6 normal lung tissue specimens using immunohistochemistry with SP method. Univariate and multivariate survival analysis were used to analyze the correlations of S100A4 and MMP9 to the clinicopathological characteristics and progrnosis of NSCLC.
RESULTSCompared with normal lung tissues, NSCLC showed significantly increased positivity for S100A4 and MMP9 expression (P<0.05); their expression were significantly higher in adenocarcinoma than in squamous cell carcinoma (P<0.01), and higher in metastatic NSCLC than in that without lymphatic metastasis (P<0.01). The positive expression rates of S100A4 and MMP9 were significantly higher in tumors in TNM stages III +IV than in stages II+I (P<0.05). S100A4 expression was positively correlated to tumor size (P<0.001), while MMP9 was inversely correlated to tumor differentiation (P<0.05). The expressions of S100A4 and MMP9 were both correlated to lymphatic metastasis, TNM stages and pathological types (P<0.05), and they also showed a mutual correlation (P<0.01). Univariate survival analysis confirmed the effects of histological types, lymphatic metastasis, clinical TNM stages and expressions of S100A4 and MMP9 on the survival time of NSCLC patients (P<0.001). Multivariate survival analysis identified clinical TNM stages and expressions of S100A4 and MMP9 as the independent factors affecting the prognosis of NSCLC (P<0.05).
CONCLUSIONThe expressions of S100A4 and MMP9 are up-regulated in NSCLC and have significant correlations to the clinical and biological behaviors of NSCLC. S100A4 and MMP9 status are independent prognostic predictors of NSCLC, and detection of their expressions may help evaluate the prognosis of NSCLC.
Adult ; Aged ; Carcinoma, Non-Small-Cell Lung ; metabolism ; pathology ; Female ; Humans ; Immunohistochemistry ; Kaplan-Meier Estimate ; Lung Neoplasms ; metabolism ; pathology ; Lymphatic Metastasis ; Male ; Matrix Metalloproteinase 9 ; biosynthesis ; Middle Aged ; Neoplasm Invasiveness ; Prognosis ; S100 Calcium-Binding Protein A4 ; S100 Proteins ; biosynthesis
7.The clinical features and surgical treatment strategies of cervical kyphosis.
Jia-hu FANG ; Lian-shun JIA ; Xu-hui ZHOU ; Li-jun SONG ; Wei-hua CAI ; Xiang LI
Chinese Journal of Surgery 2010;48(20):1546-1549
OBJECTIVETo analyze the clinical characteristics and the surgical treatment strategy of cervical kyphosis.
METHODSFrom March 2006 to October 2009, 31 cases of cervical kyphosis were treated. According to the clinical features and imaging findings, different treatment methods were used. There were 9 patients in operation group, including 4 male and 5 female patients, aged from 17 to 72 years (average age of 35 years). Among them, 5 cases were idiopathic kyphosis and 4 cases were caused by laminectomy or other reasons. There were 22 patients in conservative treatment group, including 11 male and 11 female patients, aged from 14 to 40 years (average age of 29 years), who were all idiopathic cervical kyphosis. Before and 1 week after operation, clinical assessment were taken for the patients in operation group using Spinal Cord Injuries Classification Standard of American Spinal Injury Association (AISA). During the periodic review, the anteroposterior, normal sagittal films of cervical spine were taken. At 1 week and every 6 months after operation, MRI films were also taken. These films were studied to evaluate the effects of the operations. In the conservative group, assessment of treatment results by studying anteroposterior and normal lateral views of cervical spine were were taken every month. The clinical characteristics and the surgical treatment strategies of these patients were analyzed.
RESULTSIn operation group, 9 cases were followed up for 6 to 18 months, all patients did not failed in internal fixation and fusion. AISA neurological score and neurological function significantly improved. Three days after operation the average Cobb angle was -1.29 ° (preoperative 54.24 °). In conservative group, the average Cobb angle was -5.41 ° (before treatment 11.20 °) 4 months after the treatment. The symptoms of neck shoulder and back pain disappeared, and all patients were followed up for 3 to 24 months, with no recurrence of symptoms.
CONCLUSIONSIn the early period of cervical kyphosis, adopt postural therapy, plaster braces to correct an imbalance in cervical spine biomechanics can prevent deformity development. According to patients' clinical characteristics, choosing individual treatment programs can correct the severe cervical kyphosis and achieve good outcome.
Adolescent ; Adult ; Aged ; Cervical Vertebrae ; surgery ; Female ; Follow-Up Studies ; Humans ; Kyphosis ; surgery ; Male ; Middle Aged ; Spinal Fusion ; Treatment Outcome ; Young Adult
8.Detection of the expression of NK ligands in acute leukemia cell lines by real-time PCR.
Yuan LUO ; Lian-ning DUAN ; Cheng-rong LU ; Qing CAI ; Zhe WANG ; Rong-feng BAO ; Pei-de XIANG
Chinese Journal of Hematology 2013;34(1):26-29
OBJECTIVETo detect the expression profile of NK ligands in acute leukemia cell lines and investigate the differential expression pattern between acute lymphoblastic leukemia (ALL) and acute myeloid leukemia (AML).
METHODSUsing quantitative real-time PCR, 23 NK ligands (MICA, MICB, ULBP-1, ULBP-2, ULBP-3, ULBP-4, HLA-E, HLA-G, CD48, NBTA, HLA-F, LLT-1, PVR, Nectin2, CD72, CD80, ICAM-1, LFA-3, CRACC, Fas, DR4, DR5, TNFR1) were detected in 6 acute leukemia cell lines, including 3 ALL cell lines (CEM, Jurkat T, Reh) and 3 AML cell lines (HL-60, KG-1a, NB4), respectively. Independent-samples t test analysis was performed to determine statistical significance.
RESULTSUsing β-actin as reference gene, the relative expression results showed that the expression of 4 NK ligands between ALL and AML is significantly different. Specifically, the level of ULBP-2 is higher in ALL (CEM: 1, Jurkat T: 0.617, Reh: 0.246) than that in AML (HL-60: 0.000, KG-1a: 0.003, NB4: 0.000)(P = 0.047). However, the expressions of CD48, PVR(PVR-1, PVR-2) and DR4 is higher in AML (HL-60: 13.987, 4.403, 10.334, 8.711; KG-1a: 5.387, 2.900, 7.315, 4.512; NB4: 7.763, 3.248, 7.049, 6.127) than that in ALL (CEM: 1, 1, 1, 1; Jurkat T: 2.035, 1.553, 3.888, 0.449; Reh: 1.559, 0.000, 0.000, 1.304) (P = 0.044, 0.014, 0.014, 0.011). And there're no significant differences between the rest 19 NK ligands.
CONCLUSIONSULBP-2, CD48, PVR and DR4 might play an important role in the distinct mechanisms in leukemogenesis between ALL and AML and could be potential targets for diagnosis and treatment.
Acute Disease ; Antigens, CD ; genetics ; metabolism ; CD48 Antigen ; Cell Line, Tumor ; GPI-Linked Proteins ; genetics ; metabolism ; HL-60 Cells ; Humans ; Intercellular Signaling Peptides and Proteins ; genetics ; metabolism ; Leukemia ; genetics ; metabolism ; Leukemia, Myeloid, Acute ; genetics ; metabolism ; Ligands ; Membrane Proteins ; genetics ; metabolism ; Precursor Cell Lymphoblastic Leukemia-Lymphoma ; genetics ; metabolism ; Real-Time Polymerase Chain Reaction ; Receptors, TNF-Related Apoptosis-Inducing Ligand ; genetics ; metabolism ; Receptors, Virus ; genetics ; metabolism
9.Overexpression of a sweet protein monellin in Escherichia coli.
Zhong-Jun CHEN ; Heng CAI ; Fu-Ping LU ; Lian-Xiang DU
Chinese Journal of Biotechnology 2005;21(4):568-572
According to the amino acid sequence of monellin, a single chain 294bp monellin gene was synthesized and inserted into vector pET-22b to yield the recombinant secretion plasmid pETMO. The single-chain monellin gene was designed based on the biased codons of E. coli so that its expression would be then optimized. Under the expressing conditions, monellin was produced accounting for 44.8% of total soluble proteins. The E. coli-expressed single-chain monellin is 3000 times sweeter than sucrose. The thermal-stability and acid-resistance of the protein are higher than the natural monellin.
Escherichia coli
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genetics
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metabolism
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Plant Proteins
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biosynthesis
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genetics
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Protein Engineering
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methods
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Recombinant Proteins
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biosynthesis
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genetics
10.The effect of chorionicity on maternal hemodynamics in uncomplicated twin pregnancies
Qi CAI ; Shu-Dao WU ; Jin-Lian XIANG ; Yun-Yun REN
Fudan University Journal of Medical Sciences 2024;51(5):718-724
Objective To explore the changes of hemodynamics in pregnant women with uncomplicated dichorionic(DC)twin pregnancy and monochorionic(MC)twin pregnancy,so as to better perform prenatal monitoring.Methods A study was conducted to collect 64 pregnant women with uncomplicated twin pregnancy(41 cases of DC and 23 cases of MC)in the Obstetrics and Gynecology Hospital,Fudan University from May 2020 to Sept 2021,and 144 pregnant women with uncomplicated singleton pregnancies in the same period were selected as the control group.During the second trimester(20-28 weeks),conventional echocardiography was performed in pregnant women,and singleton pregnancy was used as the control.The left ventricular systolic,left ventricular diastolic,hemodynamic and cardiac structural parameters of DC and MC twin pregnancy were studied.Results At 20-28 weeks of gestation,compared with singleton pregnancies,the heart rate,mean arterial pressure,cardiac output,cardiac index,stroke volume,left ventricular mass,stroke work index parameters of twin pregnancy were significantly increased,and the total vascular resistance was significantly decreased,and the differences were statistically significant(P<0.05).The distribution of maternal hemodynamic parameters was similar in pregnant women with DC twin and MC twin pregnancy.Compared with DC twin pregnancy,MC twin pregnancy showed a significant increase in cardiac output(5.76 L/min vs.5.36 L/min,P=0.031).Total vascular resistance significantly decreased(1 270 vs.1 407,P=0.037).Conclusion Compared with singleton pregnancy,the hemodynamics of twin pregnancy significantly changed,which ensured the growth and development of the fetus by providing sufficient uteroplacental circulation.The cardiovascular adaptation patterns of DC and MC twin pregnancy were similar,but MC twin pregnancy had higher cardiac output and lower total vascular resistance.Monitoring the cardiac function of twin pregnancy,especially MC twin pregnancy,is very important for the safety of pregnant women.