1.Significance of EGFR, Her-2 and VEGF expressions in cervical intraepithelial neoplasia and squamous cell carcinoma
Li GENG ; Yu DENG ; Zhongqiu WANG
Cancer Research and Clinic 2013;25(11):750-753
Objective To investigate the expressions of EGFR,Her-2 and VEGF in cervical intraepithelial neoplasia (CIN) and cervical squamous cell carcinoma,as well as its clinic value of carcinogenesis,progression and metastasis in ccrvical squamous cell carcinoma.Methods EGFR,Her-2 and VEGF were evaluated by immunohistochemistry in tissues from normal cervix,CIN and squamous cell carcinoma.Results The expressions of EGFR,Her-2 and VEGF were negative in normal cervix.The positive rate of EGFR,Her-2 and VEGF in CIN tissues were 35.0 % (14/40),37.5 % (15/40),42.5 % (17/40),while in cervical carcinoma tissues were 70.0 % (35/50),78.0 % (39/50),76.0 % (38/50) respectively,which had statistical significance.There was relationship between the expressions of EGFR,Her-2,VEGF proteins with pathological grade andlymph node metastasis of squamous cell carcinoma.The expressions of Her-2 and VEGF correlated with the clinical stage of quamous cell carcinoma.Conclusion The expressions of EGFR,Her-2 and VEGF may be correlated with the occurrence,development and metastasis of cervical carcinoma.It may be used as an important marker to evaluate the malignant degree of cervical carcinoma and it can be helpful in the treatment of cervical carcinoma.
2.Effect of all-trans retinoic acid combined with trichostatin A on the nude mice bearing human follicular thyroid carcinoma
Chinese Journal of Nuclear Medicine 2011;31(6):373-377
ObjectiveTo study the changes of iodine uptake of the follicular thyroid carcinoma cell line (FTC-133) and nude mice bearing human follicular thyroid carcinoma after the induction with alltrans retinoic acid (ATRA),trichostatin A (TSA) or ATRA combined with TSA.MethodsAfter the induction with ATRA,TSA,or ATRA combined with TSA in different concentrations for 96 h,the iodine uptake of FTC-133 cells was observed.The concentrations for different groups were as follows:ATRA 1.0 ×10-6 mol/L(Alow group),ATRA 1.0 × 10-4 mol/L(Ahigh group),TSA 1.65 ×10-7 mol/L(T group),Alow +T group,Ahigh +T group and ethanol (control group).Cell quantities and morphology were observed by HE staining.FTC-133 cells were subcutaneously injected into nude mice.Twelve nude mice were randomly divided into 4 groups after tumor formation:ATRA group (2 mg/kg,intragastric administration),TSA group (10 mg/kg,intraperitoneal injection),combined therapy group (ATRA + TSA,the same doses as above) and saline control group (10 ml/kg,intragastric and intraperitoneal administration,respectively).Drugs were administered to the tumor-bearing mice according to the mouse body mass daily.At the 22nd day,the tumor-bearing mice were injected with 37 MBq 131I intraperitoneally.The biodistribution of 131I and gamma imaging were performed at 4,6,12 and 24 h after the injection respectively.Histopathological examinations of the tumor samples were taken after imaging completion.The results were analyzed by analysis of variance (ANOVA) with SPSS 13.0.ResultsThe cellular iodine uptake were (23 885 ± 616.0 ) and ( 13 849 ±728.2) counts · min-1 · 10-6 cells in the Alow + T group and Ahigh + T group respectively,and the data were (985 ± 84.2) - ( 17 600 ± 782.7 ) counts · min-1 · 10-6 in the other groups ( F =600.879,P <0.001 ).The % ID/g of tumor at 6 h was 6.17 ±0.46 in the combined group and it increased to 9.34 ±0.61 at 12 h and 11.19 ± 0.98 at 24 h.The % ID/g of tumor in the other groups were from ( 1.97 ± 0.34)to (5.14 ± 0.65 ).The tumor qualities of the 4 groups were significantly different ( F =3.723,P < 0.05 ).ConclusionThe iodine uptake of the tumor could be enhanced in the tumor-bearing mice administered with ATRA combined with TSA,a potential way for treating follicular thyroid carcinoma.
4.Studies on sLe~(a/x) and Hematogenous Metastasis of Cancer
Yun-Li PENG ; Jing LI ; Mei-Yu GENG ;
China Biotechnology 2006;0(06):-
The expression of sLea/x which correlates with conventional histopathologic parameters serves as a useful indicator for the prognosis of metastatic disease. The bindings between sLea/x and their common ligand E-selectin initiate hematogenous metastasis of cancer. Certain bioactive conformation is crucial for the interaction between sLea/x and their ligands. Thus, a new class of compounds that mimic the structures of sLea/x can potently inhibit not only their functional bindings to selectins, but also the metastasis of cancer. This review is mainly on the sLea/x molecular structure,biosynthesis,distribution, especially the relationship between sLea/x and hematogenous metastasis of cancer and the design of drugs that mimic the structures of sLea/x.
6.Clinical value of 64-row CT angiography in detection of carotid atherosclerotic plaque
Xiaoyan YU ; Weijun TANG ; Ruijiang ZHU ; Haoxiong LI ; Daoying GENG
Chinese Journal of General Practitioners 2009;8(11):792-795
Objective To explore clinical significance of muhidetector(64-row)computed tomography carotid atherosclerosis angiography(MDCTA)in detecting carotid atherosclerotic plaque.Methods Data of 116 patients with carotid atherosclerosis undergone with MDCTA stayed at Huashan Hospital,Shanghai from January to August,2008 were analyzed retrospectively.Results Three hundred and seventy-seven plaques were identified among all the 116 patients in the study,with an incidence of calcified plaque of 63.40 percent,and more detected at the common carotid artery(27.85%).the carotid bifurcation(39.78%)and the internal carotid artery (21.48%).There was significantly statistical difference in plaque types between those with mild,moderate and severe carotid stenosis(P=0.000)and between those aged equal to or lower than 50 years and equal to or greater than 70 years(P=0.005).Plaque types at the common carotid artery were significantly difierent from those at the carotid bifurcation(P=0.000)and at the internal carotid artery(P=0.000).Results of regression analysis showed a positive and significant association between carotid occlusion and clinical symptomatology(with a coefficient of correlation of 1.080.P=0.023)and inverse association between calcified plaque and clinical symptomatology(with a coefficient of correlation of 0.688,P=0.006).Conclusions Not only imaging characteristics of carotid atherosclerotic plaque can be accurately assessed by MDCTA,but also measurement of its stenosis degree.Assessment of plaque type,degree of stenosis and distribution of plaque in different Vascular segments with MDCTA can be used to predict clinical occurrence of cerebevaseular events in patients with carotid atherosclerosis.
7.Effect of hemoperfusion plus hemofiltration in patients with hyperlipidemic pancreatitis
Yuanchao ZHANG ; Li YU ; Feng GENG ; Wei LIU
Chinese Journal of Hepatobiliary Surgery 2014;20(4):274-276
Objective To evaluate the effect of different blood purification modes on patients with hyperlipidemic pancreatitis (HLP).Methods 28 patients with HLP in our department were enrolled into this study from January 2010 to June 2013.The patients were randomly divided into the HP/CVVH group (15 patients) and CVVH group (13 patients).The clinical symptoms and signs of the two groups were observed.The plasma levels of TNF-α,IL-6,IL-8,blood triglyceride and APACHE Ⅱ score before and after treatment were compared between the two groups.The duration of mechanical ventilation,ICU stay and mortality rate were compared between the two groups.Results The clinical symptoms improved in the two groups after treatment.The plasma levels of TNF-α,IL-6,IL-8,blood triglyceride and APACHE Ⅱ score were all reduced.However,the plasma levels of TNF-o,IL-6,IL-8,blood triglyceride and APACHE Ⅱ score in the HP/CVVH group were lower than the CVVH group at the same time points,showing significant differences (P < 0.05).The duration of mechanical ventilation,ICU stay and mortality rate decreased in the HP/CVVH group (P < 0.05).Conclusions HP/CVVH was more efficacious in the treatment of HLP.
8.Clinical Research of Stereotactic Biopsy in Diagnosis of Multiple Intracranial Lesions
Zhenguang ZHANG ; Zongfang LI ; Hualin YU ; Tao SUN ; Xin GENG
Journal of Kunming Medical University 2013;(11):80-83
Objective To investigate the clinical value of stereotactic biopsy in the diagnosis of the multiple intracranial lesions, and explore the operation methods, technical points and clinical experiences to reduce surgical complications. Methods Twenty-three patients in the first affiliated hospital of Kunming Medical University underwent stereotactic biopsy from January 2009 to June 2013 were analyzed retrospectively. The patients were aged between 11 and 73 years (the mean age of 34.6 years) . There were 12 males and 11 females. Operations were performed by thin thickness of spiral CT scan, ASA-602S and Leksell-Frame-G stereotactic frame, Sedan side-cutting needle, Backlund side-cutting needle and neuroendoscope of STORZ. Routine histopathological examinations of specimens were conducted. The immunohistochemical staining of the histopathological section of specimens was performed if necessary. Results The diagnostic yield was 91.3% (21 cases) . The result of pathological diagnosis was inflammatory granuloma in 1, inflammatory lesion in 1, calcification in 1, hyperplasia of colloid cells in 6, astrocytoma in 1 (WHOⅠ-Ⅱ), astrocytoma in 2 (WHOⅡ), astrocytoma in 1 (WHOⅡ-Ⅲ), mixed oligoastrocytoma in 1 (WHOⅠ-Ⅱ), glioblastoma multiforme in 3 (WHOⅣ), germinoma in 1, brain metastases in 1, diffuse large B-cell lymphoma in 1, intracranial granulomatousarteritis in 1 and negative in 2. There were no serious complications, such as coma, hemiparalysis, infection and intracranial hematoma. Conclusion Stereotactic biopsy is an important method in the diagnose of multiple intracranial lesions. It has the advantages of precise location, less damage, safe performance, and reducing the complication effectively. It is worth promoting.
9.Diagnostic performance of diffusion-weighted magnetic resonance imaging for preoperative T staging and metastatic lymph nodes of gastric adenocarcinoma
Xiaodan GENG ; Lijuan YU ; Munan CHEN ; Wenzhi WANG ; Yingci LI
China Oncology 2016;26(7):629-634
Background and purpose:Gastric cancer impacts human health seriously. Accurate preoperative assessment of T staging and metastatic lymph nodes of gastric cancer was beneifcial to patients’ treatment options and their prognosis. The purpose of this study was to evaluate the diagnostic performance of diffusion-weighted magnetic resonance imaging for preoperative assessment of T staging and metastatic lymph nodes in patients with gastric cancer. Methods:This study selected 35 gastric cancer patients met the criteria for this prospective study. They all underwent gastric 3.0 T MRI+DWI imaging scan. These patients’ T stage and metastatic lymph nodes were evaluated before the surgery, with the reference of post-operative histopathological ifndings. Kappa consistency test was used to assess the consistency of T staging between the two methods. This study analyzed short axis diameter, long axis diameter and apparent diffusion coeffcient (ADC) values of lymph nodes, relative of muscle’s ADC (rADCm) values (rADCm=ADC values of lymph nodes/ADC values of right erector spinae), and relative of primary tumor’s ADC (rADCp) values (rADCp=ADC values of lymph nodes/ADC values of primary tumor) on MRI image. Independent samples test was used to assess the difference between metastatic lymph nodes and benign lymph nodes. The receiver operating characteristic(ROC) curve was generated to evaluate the accuracy of diffusion-weighted magnetic resonance imaging (MRI) for preoperative assessment of metastatic lymph nodes of gastric cancer.Results:The accuracy of diffusion-weighted MRI for T stages was 77.14%, 75% for T1, 100% for T2, 76.47% for T3 and 75.00% for T4 and respectively. There were statistically signiifcant differences in the long axis diameter, the short axis diameter, ADC value, rADCm and rADCp between metastatic lymph nodes and benign lymph nodes (P<0.05). The area under the ROC curve of rADCm was greater than thats of other criteria, so rADCm was the most signiifcant parameter. The best discriminative cut-off value of long axis, short axis, ADC value, rADCm value and rADCp value were 9.55 mm, 6.05 mm, 0.934×10-3mm2/s, 0.60 and 1.083, respectively. The sensitivity and speciifcity were 59.00% and 73.10%, 59.00% and 69.80%, 82.60% and 88.50%, 83.70% and 84.60%, 78.20% and 80.80%, respectively.Conclusion:Diffusion-weighted MRI has great signiifcance for preoperative assessment of T staging and metastatic lymph nodes of gastric cancer.
10.Effect of continuous blood purification in the treatment of cardiorenal syndrome type Ⅰ
Yuanchao ZHANG ; Li YU ; Feng GENG ; Jing HU ; Shichong LIAO
Chinese Journal of Geriatrics 2015;34(7):771-773
Objective To evaluate the effect of continuous blood purification (CBP) on cardiorenal syndrome (CRS) type Ⅰ.Methods Clinical data of 42 patients with CRS type [at our hospital were collected from January 2012 to June 2014.We observed and compared changes in mean arterial pressure (MAP),heart rate,respiration rate,acute physiology and chronic health evaluation (APACHE) Ⅱ score,and urinary volume before and 5 days after CBP.Meanwhile,levels of serum creatinine (Scr),cysteine proteinase inhibitor Cystatin C (CysC),serum creatinine (cTn) and B-type natriuretic peptid (BNP) were monitored.In addition,dynamic changes in cardiac index (CI),intrathoracic blood volume index (ITBI),global end-diastolic volume index (GEDI),central venous pressure (CVP),and extravascular lung water index (ELVWI) were monitored using the pulse induced contour cardic output plus monitoring system (PiCCO plus),and changes in left ventricular ejection fraction (LVEF) before and 5 days after CBP was measured by color Doppler ultrasound.Results There was no significant difference in MAP in patients with CRS type Ⅰ before and 5 days after CBP (P=0.08).Tacbycardia and tachypnea improved,while urine volume increased and the APACHE Ⅱ score decreased significantly,5 days after CBP(allP<0.05).Plasma levels of Scr,CysC,cTn and BNP after treatment were lower than those before treatment [(126.8±68.3) μmol/L vs.(413.6±126.1) μmol/L,(1.1±0.8) g/L vs.(4.1±1.1) g/L,(2.6±0.4) μg/L vs.(3.5± 0.7) μg/L,(807.6±427.7) ng/L vs.(3300.3±567.6) ng/L,all P<0.05)].Myocardial contractility,cardiac preload and lung related parameters also significantly improved after CBP (allP <0.05).Conclusions CBP can alleviate clinical symptoms of CRS type Ⅰ,improve cardiac and renal function,and is promising as an important auxiliary measure for the treatment of patients with cardiorenal syndrome type Ⅰ.