1.Gene polymorphisms predict efficacy and toxicity of chemotherapy for colorectal cancer
Tumor 2010;(2):164-169
Objective:The efficacy and toxicity of anticancer drugs differ in different tumor patients. It could not meet the requirements of optimization of tumor treatment if only under the guidance of clinical and pathologic characteristics. More and more attention is focused on individualized therapy based on individual gene profiles. It has been identified that gene polymorphisms are responsible for different outcomes of individuals. Gene polymorphisms, including sequence polymorphism and single nucleotide polymorphism, will decrease the clinical efficacy of chemotherapeutic drugs or increase adverse reactions by influencing the expression or activity of the corresponding proteins. In recent years several gene polymorphisms related to drug metabolism, transportation, or inactivation may affect the outcomes of chemotherapy and the frequency of adverse reactions. Identification of the polymorphism genes is important for individual therapy for tumor patients.
2.Expression of serum soluble form of triggering receptors expressed on myeloid cell-1 in full term neonates with bacterial infection
Wenjuan TANG ; Qiwei HUANG ; Jiaying LIU
Chinese Journal of Perinatal Medicine 2011;14(5):261-266
Objective To observe the changes of serum soluble form of triggering receptors expressed on myeloid cell-1 (sTREM-1) level in full-term newborns with infection and to investigate the relationship between serum sTREM-1 and neonatal bacterial infection.Methods Eighty-five full-term newborns admitted to the neonatal ward of Shanghai Children s Hospital of Shanghai Jiaotong University were selected into this study.According to the locations and severity of infection,patients were divided into 3 groups: severe infection group (n = 27),mild infection group (n = 28),non-infection group (n = 30).The samples of infection groups were collected before using antibiotics and within 48 h after infection symptom occurred; others were collected during hospitalization.For the neonates with organ dysfunction in the severe infection group,samples were also collected at the third and seventh day of infection.Serum sTREM-1 was measured by enzyme-linked immunosorbent assay.Analysis of variance was used to compare the difference between groups.Receiver operating characteristic (ROC) curve was used to calculate the sensitivity,specificity,positive and negative predictive value and Youden index.Results (1) Serum sTREM-1 level of severe infection group[(91.2±47.3) pg/ml] was significantly higher than that of mild infection group[(68.8 + 30.4) pg/ml] and non-infection group[(35.5±17.6) pg/ml],respectively (P<0.05).(2) Serum sTREM-1 level of the survival newborns (n= 17) in the severe infection group was lower than that of dead ones[(73.1±34.9) pg/ml vs (121.6±49.3) pg/ml,t= - 2.995,P = 0.006].(3) For the survival patients,the serum sTREM-1 level decreased in the first week of infection,while that of dead patients increased,the cut-off value was 100.6 pg/ml.(4) Based on the ROC analysis,43.8 pg/ml was selected as the the cut-off value,area under the curve was 0.868,and sensitivity was 85.5%,specificity 80.0%,positive predictive value 0.887,negative predictive value 0.750,Youden index 0.655.Conclusions Serum sTREM-1 level increases in neonatal infection.The change of serum sTREM-1 level in patients with severe infection is correlated to the prognosis.
3.Changes of interleukin-6, interleukin-8, tumor necrosis factor-α and soluble form of triggering receptor expressed on myeloid cells-1 in full term neonates with infection
Wenjuan TANG ; Qiwei HUANG ; Jiaying LIU
Chinese Pediatric Emergency Medicine 2013;20(1):39-43
Objective To evaluate and compare the value of interleukin(IL)-6,IL-8,tumor necrosis factor(TNF)-α,and soluble form of triggering receptor expressed on myeloid cells (sTREM)-1 in neonatal infection and detect the relationship between them.Methods Eighty-five full-term newborns who were admitted to the neonatal ward of Shanghai Children's Hospital of Shanghai Jiaotong University were enrolled,according to the locations and severity of infection,the patients were divided into three groups:systemic infection group (n =27),local infection group(n =28),and non-infection group (n =30).The level of plasma sTREM-1 was measured by enzyme-linked immunosorbent assay,and the levels of IL-6,IL-8 and TNF-α were measured using cytometric bead array.Results (1) The levels of sTREM-1,IL-6,IL-8 and TNF-α were significantly higher in infants with systemic infection group than local infection group and non-infection group(P <0.05).(2) There were 17 survivors and 10 deaths in systemic infection group,and the level of sTREM-1 in the non-survivor [(121.64 ±49.31) pg/ml] was higher than the survivor[(73.13 ± 34.92) pg/ml,P =0.006].But the levels of IL-6,IL-8 and TNF-α were not statistically significant in the survivor and the death (P > 0.05).(3) Based on the receiver operating characteristic analysis,cutoff values were identified for each variable that maximized both the sensitivity and specificity.These markers were considered positive if sTREM-1 ≥43.75 pg/ml,IL-6 ≥ 89.80 pg/ml,IL-8 ≥569.55 pg/ml and TNF-α ≥ 24.80 pg/ml.Among these indexes,the sensitivities were 85.5%,89.1%,70.1% and 69.5% respectively; the specificity were 80.0%,100%,100% and 93.3% respectively.Compared the area under curve(AUC) of them,IL-6(AUC =0.981)> sTREM-1 (AUC =0.868) > TNF-α (AUC =0.864) > IL-8 (AUC =0.852).sTREM-1 was correlated with IL-6,IL-8 and TNF-α(Spearman coefficient of rank r =0.532,P <0.01 ;r =0.420,P <0.01 ;r =0.531,P <0.01).Conclusion (1) The levels of plasma sTREM-1,IL-6,IL-8 and TNF-α were higher in neonatal infections;(2) sTREM-1 was associated with prognosis; (3) sTREM-1 was correlated with IL-6,IL-8 and TNF-α.
4.Estrogendecreasingmatrixmetalloproteinase-9geneexpressioninmicewithexperimental autoimmune encephalomyelitis
Xiao HU ; Jiaying ZHU ; Weikun HUANG ; Xing WAN ; Jianyi WANG
Chinese Journal of Neurology 2011;44(7):468-472
Objective To study the regulation effect of estrogen in expression of matrix metalloproteinase-9 (MMP-9) in the central nervous system (CNS) in mice with experimental autoimmune encephalomyelitis ( EAE).Methods The 60 mice were overiectomized and 2 weeks later EAE was induced with MOG35-55 peptide in these mice.They were divided into a treatment group and a control group.The treatment group was treated with estrogen and the control group was given PBS.Clinical symptoms in these two groups were scored and compared.HE staining was used to observe inflammation in the brain and spinal cord.The MMP-9 expression in the CNS was examined by quantitative real-time PCR and immunofluorescence staining.Results The incidence of disease was lower (treatment and control group were 8/30 and 28/30 respectively) and clinical symptoms were milder (treatment and control group were 3.23±0.83 and 1.62 ±1.00 respectively,t=3.811 and P<0.05) in the treatment group than those in the control group.HE staining showed the decreased infiltration of inflammatory cell in the treatment group (Treatment group:inflammatory score were 0.895 ±0.206,0.752 ±0.302,0.732 ±0.183 in acute,relief and chronic phase respectively;Control group:inflammatory score were 3.472 ±0.635,2.881 ±0.662,1.891 ± 0.482 in acute,relief and chronic phase respectively.t = 8.622,6.543 and 5.027,all P < 0.05).The quantitative real-time PCR and immunofluorescence staining showed that the expression of MMP9 in the CNS was decreased in the treatment group.Conclusion Estrogen may decrease MMP-9 expression in the CNS,reduce inflammation and clinical symptoms in mice with EAE.
5.Prokaryotic expression and preliminary identification of protein CrdS of Helicobacter pylori.
Jiaying NIE ; Zhibang YANG ; Lei TANG ; Jin HUANG
Journal of Biomedical Engineering 2013;30(6):1298-1301
The CrdS protein responding to the acidic adaptation was prokaryotic-expressed in our Laboratory to explore the regulatory mechanism in the acidic adaptation of Helicobacter pylori (H. pylori). The whole genomic DNA of H. pylori strain 26695 was abstracted and set as the template firstly. And then the hp1364 gene coding CrdS protein was amplified via the PCR technique. Then the clonal recombinant plasmid pUCm-T-hp1364 and the prokaryotic expression plasmid pQE30-hp1364 were built and identified by the methods of PCR, cutting with two enzymes and sequencing. After that, the plasmid pQE30-hp1364 was transferred into the E. coli XL1 blue and induced with IPTG. Using western blot and SDS-PAGE, it can be analyzed that the expressed recombinant protein existed mainly in the form of the inclusion bodies and its relative molecular mass was about 46 kDa. The successfully attained recombinant protein CrdS will provide the material to explore the regulatory mechanism in the acidic adaptation of H. pylori and the new way to resist the infection of H. pylori.
Bacterial Proteins
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biosynthesis
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genetics
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Blotting, Western
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Electrophoresis, Polyacrylamide Gel
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Escherichia coli
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metabolism
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Helicobacter pylori
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genetics
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Plasmids
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Polymerase Chain Reaction
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Recombinant Proteins
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biosynthesis
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genetics
6.Evaluation of contrast-enhanced ultrasonography in diagnosis of focal splenic solid lesions
Jiaying CAO ; Hui ZHANG ; Wenping WANG ; Beijian HUANG ; Hong DING
Chinese Journal of Ultrasonography 2009;18(11):946-949
Objective To investigate the value of contrast-enhanced ultrasonography(CEUS) for differential diagnosis of focal splenic solid lesions.Methods Thirty-two patients with 32 focal splenic lesions were examined with CEUS.The enhancement phases and perfusion were observed.Each group has 16 patients.Results The contrast media extincted more quickly in malignant lesions than in benign ones.The peak time and initial decreasing time of the malignant lesions were (19.7±4.5)s and (29.7±10.9)s.The opposite time of the benign lesions were (24.2±4.4)s and (50.9±22.8)s.The initial decreasing time of the malignant lesions was earlier than that of the benign ones.The enhancement pattern was similar between the two groups.More lesions can be detected after CEUS.The number of the lesions was 111 before CEUS and 142 after CEUS.Conclusions CEUS is useful in the differential diagnosis of splenic lesions.
7.A comparison of echocardiography with magnetic resonance imaging in measurement of cardiac function in patients with dilated cardiomyopathy
Songtao HUANG ; Jiaying ZHAO ; Lanxiang LIU ; Zhanqiu WANG ; Liuquan CHENG
Chinese Journal of Endemiology 2016;35(8):616-619
Objective To compare the difference of echocardiography and magnetic resonance imaging (MRI) in measurement of cardiac function in patients with dilated cardiomyopathy (DCM).Methods Totally 41 patients with DCM underwent echocardiography and MRI to measure cardiac function,the parameters included left ventricular end-diastolic volume (LVEDV),end systolic volume (LVESV),left ventricular ejection fraction (LVEF) and stroke volume (SV).The vertical long axis (VLA),horizontal long axis (HLA) and short axis (SA) of heart were measured by echocardiography.The differences of echocardiography and MRI were compared by linear regression and linear correlation.Results ①The value of LVEDV and LVESV obtained by the two methods:the value of LVEDV [(262.6 ± 117.0) ml] and LVESV [(196.4 ± 109.8) ml] obtained by MRI were higher than those of echocardiography [(211.4 ± 90.6),(216.5 ± 71.5),(219.1 ± 80.1) ml;(153.3 ± 76.1),(153.9 ± 54.1),(157.0 ± 61.1) ml,all P < 0.05].②The value of SV and LVEF obtained by the two methods:the value of SV[(66.2 ± 21.3) ml] obtained by MRI was higher than that of echocardiography VLA [(58.1 ± 14.4) ml,P < 0.05].The value of LVEF [(25.2 ±7.2)%] obtained by MRI was lower than those of echocardiography HLA and echocardiography SA [(28.9 ± 6.1)%,(28.3 ± 6.1)%,all P < 0.05].③The value of LVEDV and LVESV obtained by echocardiography SA were associated with those obtained by MRI (r =0.785,0.653,all P < 0.05).The value of LVEF obtained by echocardiography VLA was associated with it obtained by MRI (r =0.690,P < 0.05).The value of SV obtained by echocardiography HLA and echocardiography SA were associated with those obtained by MRI (r =0.734,0.701,all P < 0.05).Conclusion There are differences in accuracy and reliability using echocardiography and MRI when measuring dilated cardiomyopathy heart function,which must be treated differently.
8.Efficacy observation of pegaspargase combined with intensity modulated conformal radiotherapy in the treatment of 20 patients with early-stage nasal NK/T cell lymphoma
Xiaomei LIU ; Yunhong HUANG ; Yunfei HU ; Yang SONG ; Jiaying GAN
Journal of Leukemia & Lymphoma 2016;25(3):186-188
Objective To study the clinical characteristics, diagnosis, treatment and prognosis of primary pulmonary peripheral T-cell lymphoma, not otherwise specified (PTCL-NOS). Methods Two cases of primary pulmonary PTCL-NOS were studied and relevant literature were reviewed. Results Case 1 diagnosed as primary pulmonary PTCL-NOS was a 44 years old woman and disease progressed after GLD (Gem+L-OHP+ DXM) chemotherapy regimen. At last, the patient died of respiratory failure after one month. Case 2 diagnosed as primary pulmonary PTCL-NOS was a 46 years old man and reach partial response after CHOP regimen, and still alive now.Conclusion Primary pulmonary PTCL-NOS is very rare. It is easy to be misdiagnosed due to non-specific clinical and imaging manifestations. Acquiring enough tissue specimens for pathologic examination is the key to a definitive diagnosis. At present, there is no standard chemotherapy regimen for these patients, the prognosis is relatively poor.
9.CT morphometric assessment of the acromion and clavicle hook plate
Tao CHEN ; Meng YE ; Yuanqing GUO ; Chuangxin HUANG ; Guowei LI ; Jiaying LAI ; Zongwen HUANG
Chinese Journal of Orthopaedic Trauma 2012;14(1):11-14
Objective To measure the morphological parameters of the acromion with CT and to analyze their match with the hook plate. Methods From October 2009 to February 2010,spiral CT scanning (with Somatom Emotion16) and three-dimensional reconstruction of bilateral shoulders were conducted in 61 Chinese subjects.They were 24 men and 37 women,aged from 20 to 83 years (average,45.2 years).The thickness,length and width of the acromion were measured and the subacromial shape was observed with software of the CT system to analyze the match between the hook plate and the acromion.Results The mean thickness of the acromion was 0.85 ± 0.13 cm in all subjects,0.94 ± 0.12 cm in males and 0.79 ± 0.10 cm in fe males,with a significant difference between males and females ( t =2.382,P =0.202).The mean acromion length was 2.08 ± 0.20 cm in all subjects,2.09 ± 0.21 cm in males and 2.06 ± 0.18 cm in females,with no significant difference between males and females( t =1.541,P =0.129).The mean acromion width was 3.81 ± 0.52 cm in all subjects,4.34 ± 0.32 cm in males and 3.47 ± 0.25 cm in females,with a significant difference between males and females ( t =2.296, P =0.025 ). Conclusions The acromial morphology varies significantly between genders in Chinese population,particularly in the thickness and width.It is,therefore,necessary to modify the morphological parameters of the hook plate to match better the gender difference in Chinese population.It is optimal that the hook plate should allow individualized pre-moulding to enhance its therapeutic efficacy.
10.Ultrasound diagnosis and differential diagnosis of primary hepatic lymphoma
Hui ZHANG ; Qing QI ; Jiaying CAO ; Qing LU ; Hong DING ; Beijian HUANG ; Wenping WANG
Chinese Journal of Hepatobiliary Surgery 2013;19(12):883-886
Objective To investigate the diagnostic value of ultrasound in primary hepatic lymphoma (PHL).Methods The ultrasonic and clinical features in 40 cases of PHL were analyzed retrospectively.All cases were pathologically confirmed by surgical operation or ultrasound-guided biopsy.Results The most common presentation of PHL was a solitary lesion which occurred in 57.5% (23/40) of patients,followed by multiple lesions in 30.0% (12/40),and diffuse infiltration patterns in 12.5 % (5/40).The first two types were usually shown on ultrasound as hypoechoic lesions with surrounding normal liver parenchyma in 88.6% (31/35) of cases.The diffuse pattern presented as diffuse hepatomegaly without nodules in the liver parenchyma.There were 52.5% (21/40) of the lesions which could not be diagnosed either as benign or malignant by ultrasound.Conclusions The clinical presentations and imaging features of PHL are non-specific.PHL should be considered as a differential diagnosis in cases of liver metastases when no primary tumour is apparent,or when sonographic findings show atypical features of primary liver carcinoma or hemangioma.When patients with unexplained fever and diffuse hepatomegaly,PHL should be considered and precaution should be taken to prevent to misdiagnose these patients as having fatty liver or chronic liver disease.