1.The analysis of epidemiological and clinical characteristics of 112 cases patients with adult-measles
Xiao-Hua CHEN ; Jie XU ; Guo-Qing ZANG ;
Chinese Journal of Infectious Diseases 2001;0(03):-
Objective To analyze the clinical data of 112 patients with adult-measles in the Af- filiated Shanghai Sixth People's Hospital and Third People's Hospital of Shanghai Jiaotong University from January to June in 2005,and to evaluate the epidemiologieal and clinical characteristics of adult- measles.Methods To retrospectively analyze the clinical data of 112 patients with adult-measles. Results Totally,112 measles patients were involved in this study,with male 63 and female 49 re- spectively.The gender rate was 1.3:1,average age about 32 years and the proportion of non-resi- dents was 40.18%.The peak of the incidence of disease emerged in April and May,and the positive rate of measle virus IgM antibody in serum was 96.43%.There were 97 patients(86.61%)who had the fever that beyond 39℃and 36 patients(32.14%)who had measle caused viral hepatitis.Conclu- sions There is a trend that the ages of patients that suffered from measle were postponed and the in cidences of disease are increased year by year,which maybe related to the nonstandard inoculation of measle vaccine,or the decrease of IgM antibody levels and so on.Meanwhile,serious toxemie symp- toms and liver damage can be observed.
2.A study of integrin beta3 mRNA expression and its correlation with microvascular density, progression and prognosis of gastric carcinomas.
Zhong-sheng ZHAO ; Guo-qing RU ; Jie MA
Chinese Journal of Pathology 2004;33(1):16-20
OBJECTIVETo investigate mRNA expression of integrin beta3 in gastric carcinoma, its correlation with microvascular density (MVD), growth-pattern, invasion, metastasis and prognosis.
METHODSIn situ hybridization and immunohistochemistry techniques were used to study the expression of integrin beta3 mRNA and CD34 protein in 105 gastric carcinoma specimens.
RESULTSIn situ hybridization revealed a 30% (6/20) positive rate of integrin beta3 mRNA in non-tumor gastric mucosa, which was significantly lower than that of the gastric cancer group (61.0%, 64/105, chi(2) = 8.85, P = 0.037); In infiltrating type cases (70.2%, 40/57), stage III - IV (72.1%, 44/61), lymphatic metastasis (68.6%, 48/70) and distant metastasis (85.7%, 36/42), the positive expression rates were significantly higher than those of the expanding type (chi(2) = 14.97, P = 0.002), stage I - II (chi(2) = 15.21, P = 0.015), non-lymphatic metastasis (chi(2) = 17.89, P = 0.025) and non-distant metastasis (chi(2) = 20.22, P = 0.005; chi(2) = 21.35, P = 0.035); its mean MVD was also significantly higher than that of the expanding type (t = 10.105, P = 0.001), stage I approximately II (t = 5.961, P = 0.001), non-lymphatic metastasis (t = 3.819, P = 0.01)and non-distant metastasis (t = 10.578, P = 0.001; t = 7.882, P = 0.001), respectively; The mean MVD (41.02 +/- 8.55)/0.72 mm(2) of the integrin beta3 mRNA positive expression group was significantly higher than (25.26 +/- 11.25)/0.72 mm(2) of the negative expression group. There was a positive relation between MVD and integrin beta3 mRNA expression in the tumor (r(s) = 0.316, P = 0.001). The mean survival time in cases with positive integrin beta3 mRNA expression or MVD value >or= 39.5 was significantly shorter than that in cases with negative expression or MVD value < 39.5.
CONCLUSIONSIntegrin beta3 expression correlates with enhanced tumor angiogenesis and may play a role in the invasion and nodal metastasis of gastric carcinoma, therefore it may serve as a prognostic marker of gastric cancer.
Adult ; Aged ; Disease Progression ; Female ; Humans ; Integrin beta3 ; genetics ; Male ; Middle Aged ; Neovascularization, Pathologic ; etiology ; Prognosis ; RNA, Messenger ; analysis ; Stomach Neoplasms ; blood supply ; metabolism ; pathology ; Survival Rate
3.Confirmation of pipetting performances for fully-open automatic biochemistry analyzers.
Chinese Journal of Medical Instrumentation 2005;29(4):277-282
This paper introduces a kind of evaluation method in pipetting performance on new fully automated biochemistry analyzers by experiments. The performance of sample pipetting volume is confirmed by dye dilution method, the performance of reagent pipetting volume and dummy volume is done by weighing method. Meanwhile, researches and comparative researches on dummy volumes in different conditions have been made, providing valuable reference for clinical applications of automatic biochemistry analyzers.
Automation, Laboratory
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instrumentation
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methods
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Biochemistry
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instrumentation
;
methods
4.Effects of orthodontic tooth movements on insulin-like growth factors expression in periodontal tissues.
Jie GUO ; Qing ZHAO ; Yang-xi CHEN
West China Journal of Stomatology 2008;26(4):439-442
OBJECTIVETo elucidate the regulatory bio-mechanism of estrogen and local stress on the bone remodeling activities in vivo.
METHODSA Wistar rat experimental model was established to apply orthodontic activation during different stages of estrous cycle. In situ hybridization was used to detect the variation of the insulin-like growth factors (IGF) mRNA expression in the periodontal tissues. The data of each group was analyzed with SPSS 11.0 software package for Student-Newman-Keuls (S-N-K) test and one way ANOVA test.
RESULTSBoth IGF-I mRNA and IGF-II mRNA level expressed in the periodontal tissues were increased by orthodontic activation during various stages of the estrous cycle. But a similar pattern emerged that the IGF-I mRNA level was the lowest in the estrous stage, whereas its level was the highest in the proestrus stage (P < 0.05). No rhythm of IGF-II mRNA expression found during the estrous cycle.
CONCLUSIONIt was concluded that local mechanical stimulation directly enhanced the IGF expression. In contrast to the IGF-II, IGF-I was also influenced by the sex hormone rhythm during the estrous cycle.
Animals ; Estrous Cycle ; Estrus ; Female ; In Situ Hybridization ; Insulin-Like Growth Factor I ; RNA, Messenger ; Rats ; Rats, Wistar ; Somatomedins ; Tooth Movement Techniques
5.A bio-mechanism study of differential orthodontic tooth moving speed during the estrous cycle.
Jie GUO ; Qing ZHAO ; Yang-xi CHEN
West China Journal of Stomatology 2008;26(3):327-330
OBJECTIVEThe purpose of this article was to investigate the changes of the estrogen and insulin-like growth factors (IGF) level induced by orthodontic tooth movements in order to elucidate the bio-mechanism of orthodontic treatments during the estrous cycle.
METHODSA Wistar rat experimental model was established to apply orthodontic activation during different stages of estrous. The serum and periodontal tissue estradiol level were determined by radioimmunoassay and immunohistochemistry. In situ hybridization was also used to detect the variation of the IGF mRNA expression in the periodontal tissues. The data of each group was analyzed with SPSS 11.0 software package.
RESULTSBoth serum and periodontal estradiol level were increased by orthodontic activation during various stages of the estrous. IGF mRNA expression were also enhanced with the same trend. The estradiol and IGF- I level showed in a similar pattern during the estrous cycle and the rhythm was not changed by the orthodontic activation. There was no rhythm of IGF-II expression found in the estrous cycle.
CONCLUSIONIt was concluded that estrogen and IGF were involved in the remodeling activities induced by the orthodontic activation. The speed of the orthodontic tooth movements was closely related to the estrous cycle.
Animals ; Estradiol ; Estrous Cycle ; Estrus ; In Situ Hybridization ; Insulin-Like Growth Factor I ; Rats ; Rats, Wistar ; Tooth Movement Techniques
6.Correlative studies on uPAR receptor mRNA expressions with vascular endothelial growth factor, microvessel density, progression and survival time of gastric carcinomas.
Zhong-sheng ZHAO ; Guo-qing RU ; Jie MA ; Wen-juan XU ; Zhong MENG
Chinese Journal of Pathology 2005;34(5):306-307
Adenocarcinoma
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blood supply
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metabolism
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mortality
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secondary
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Adult
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Aged
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Female
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Humans
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Lymphatic Metastasis
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Male
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Microcirculation
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Middle Aged
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Neovascularization, Pathologic
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metabolism
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pathology
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Prognosis
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RNA, Messenger
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biosynthesis
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genetics
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Receptors, Cell Surface
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biosynthesis
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genetics
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Receptors, Urokinase Plasminogen Activator
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Stomach Neoplasms
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blood supply
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metabolism
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mortality
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pathology
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Survival Rate
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Vascular Endothelial Growth Factor A
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metabolism
7.Expression and Clinical Implications of Preferentially Expressed Antigen of Melanoma Gene in Children with Acute Leukemia
bao-xi, ZHANG ; jing-lu, JI ; xiao-qing, ZHAO ; wen-jie, GUO
Journal of Applied Clinical Pediatrics 2006;0(20):-
0.05),but the expression in controls were negative.The expression levels of PRAME gene at remission was decreased obviously,but increased again when the patients relapsed.Conclusions Expression of PRAME gene has a high level in childhood acute leukemia.The dynamic changes are closely related with the prognosis.It can be regarded as a candidate for detecting minimal residual disease in acute leukemia,and may have important implications for estimating the prognosis and guiding the chemical therapy.
8.Construction of vibrio vaccine strain and expression of antigen gene:attenuated Listeria monocytogenes as vaccine vector
Chengchao DING ; Guowei CHEN ; Manman XIE ; Liang GUO ; Jie LI ; Jingjuan SUN ; Qing LIU
Chinese Journal of Immunology 2017;33(9):1281-1285,1290
Objective:To provide a potential platform for transferring specific antigen against fish bacterial diseases based on attenuated Lm (EGDe-ΔactA/ΔinlB).Methods: Attenuated Lm (EGDe-ΔactA/ΔinlB) was used to express outer membrane protein K (Ompk),a conserved and effective vaccine candidate in vibrio.The identification of recombinant strains and detection of antigen genes were operated with PCR and RT-PCR,respectively.Results: The results of PCR showed that Lm-Ompk (L-O),Lm-Lmo0576-Ompk (L-L-O) and Lm-P-Ompk (L-P-O) were constructed successfully.The identity of foreign gene was 100% compared with sequence of NCBI.The analysis of transcription showed that the expressions of Ompk in L-O,L-L-O and L-P-O were significant (P<0.001).Moreover,the expression of Ompk in the condition of antibiotic was higher than that in the BHI without antibiotic (P<0.05).Conclusion: Lm-Ompk (L-O),Lm-Lmo0576-Ompk (L-L-O) and Lm-P-Ompk (L-P-O) were constructed successfully.
9.Lentivirus-mediated RNA interference targeting TACO gene increases the intracellular killing of Mycobacterium tuberculosis by promoting the fusion of bacteria-containing phagosomes and lysosomes
Jie CHEN ; Yang GUO ; Yating DENG ; Hong JIANG ; Zikun HUANG ; Qing LUO ; Jianqing YE ; Junming LI
Chinese Journal of Microbiology and Immunology 2015;35(10):735-740
Objective To construct a lentiviral vector-based short hairpin RNA (shRNA) targeting the gene encoding tryptophan-aspartate containing coat protein ( TACO) and to evaluate its inhibitory effect on the expression of TACO , and to further elucidate its effects on the phagocytosing and intracellular killing of My-cobacterium tuberculosis (M.tb) by macrophages and the possible mechanisms.Methods Three shRNA frag-ments targeting TACO gene and a scrambling control shRNA fragments were designed and cloned into the lentivi -ral vector pSicoR .The recombinant lentiviral vectors were identified by sequencing analysis and then packed in 293T cells.Real-time RT-PCR and Western blot assay were performed to evaluate the gene-silencing efficiency of the recombinant lentiviral vectors among RAW 264.7 cells transfected with the concentrated lentivirus .The most effective lentivirus was screened out to transfect the RAW 264.7 cells for 48 hours, followed by infection those cells with M.tb strains.The entry and intracellular survival of M .tb strains in RAW264.7 cells were de-termined by bacterial culture at indicated time points .The colocalization of M .tb and lysosomes was detected by immunofluorescence staining .The cyto-ID autophagy kit was used to detect the cellular autophagy and the auto-phagy-associated protein LC 3 was determined by Western blot assay .Results The recombinant lentiviral vec-tors were successfully constructed and confirmed by sequencing analysis .Decreased expression of TACO in RAW264 .7 cells was detected after transfecting the cells with the lentiviral vector-based shRNA vectors targeting TACO gene for 48 hours.The most effective lentivirus , LV-pSRT1, decreased the expression of TACO by 85.24%and 69.00%at the mRNA and protein levels, respectively.The bacterial loads in LV-pSRT1 trans-fected RAW264.7 cells were significantly decreased at the time point of 0 h after M.tb infection as compared with those in the control lentivirus treated cells (5.50×104 vs 8.1 ×104, P<0.05).Compared with the RAW264 .7 cells transfected with control lentivirus , the survival rate of intracellular M .tb strains in LV-pSRT1 transfected cells was significantly decreased at the time point of 48 h (134.54% vs 213.58%, P<0.05) and 72 h (148.18%vs 262.96%, P<0.05) considering the bacterial load at the time point of 0 h as the standard. The immunofluorescence staining demonstrated that the colocalization of M .tb strains with lysosomes was signifi-cantly enhanced in LV-pSRT1 transfected cells as compared with that in control lentivirus treated cells (75.67%vs 10.66%, P<0.05).Moreover, significantly enhanced autophagy and relative expression of LC 3Ⅱ protein were observed in RAW264.7 cells with TACO gene knockdown (16.20%vs 8.50%, P<0.05;0.51 vs 0.34, P<0.05).Conclusion The lentiviral vector-based shRNA targeting TACO gene could effectively knockdown the expression of TACO protein , decrease the entry and increase the intracellular killing of M .tb strains in mac-rophages.The enhanced intracellular killing of M .tb strains by macrophages was associated with the increased fusion of M.tb-containing phagosome and lysosome .
10.Diagnosis and surgical treatment of solid pseudopapillary neoplasm of pancreas
Quanbo ZHOU ; Ning GUO ; Xiaofeng LIN ; Qing LIN ; Rufu CHEN ; Jie WANG ; Jisheng CHEN
Chinese Journal of Hepatobiliary Surgery 2012;18(7):499-502
ObjectiveTo review our experience in the diagnosis and surgical treatment of solid pseudopapillary neoplasm (SPN) of the pancreas which can be used as a reference for other doctors to avoid misdiagnosis and to provide a better treatment.MethodThe clinical,laboratory,radiological,pathological and operative data of 24 patients with SPN of the pancreas operated between February 2001 to December 2009 were collected and retrospectively analyzed.Results23 of 24 patients were female and the mean age was 31 years.The most common clinical presentations were vague abdominal pain and abdominal mass.In most cases,abdominal imaging showed a solid or a solid-cystic mass in the tail or head of pancreas.All patients received surgery.20 of 22 patients who received curative resection were alive with no evidence of tumour recurrence.One patient who had a R1 resection died 42 months after surgery.The remaining patient was alive after a second operation.ConclnsionsSPN of the pancreas is a tumour with low malignancy.A correct diagnosis of SPN of the pancreas is made on its clinical,radiological and histopathological characteristics.Radical surgical resection is the treatment of choice.For patients with an advanced disease,palliative resection is beneficial.