1.A comparison between ThinPtep cytology test and pathology histology
Chinese Journal of Primary Medicine and Pharmacy 2008;15(2):291-292
Objective To study the relativity of abnormal cervical pathology results in cytology and histology.Methods With retrospective analysis of 326 cases of fluid-based thin-layer method(ThinPtep cytology test,TCT),which reported in the bethesda system,we checked the abnormal results and advised different diagnose biopsy of vaginoscopy and/or conization and got the relativity description of abnormal results in TCT and CIN Ⅲ/CIS,results validated by vaginoscopy match analysis of the CINⅡ~Ⅲand CINⅢ/CIS results validated by vaginoscopy and conization labeled by the age group and relativity analysis of abnormal results in TCT and CIN Ⅲ/CIS iesuitsvalidated by vaginoscopy.Results 326 cases had confimed biopsy results validated by vaginoscopy,of which 70 cases were of CIN 56 cases were of CIN Ⅲ/CIS,the risk ratio(RR)of different abnonmal TCT results in predicting CINⅢ/CIS resuils validated by vaginoscopy is ASCUS group 14.7(95%confidence interval 8.0~27.0,P=0.00);CINI group 13.9(6.3~30.9,P=0 00);CINⅡgroup 44.2(15.5~126.5,P=0.00);CIN Ⅲ group 272.2(161.6~458.6,P=0.00).Conclusion Vaginoscopy examination and biopsy could verify histology abnormity of CINⅡ~CIN Ⅲ and CIN Ⅲ/CIS from abnormal results of TCT and has a good accordance along with biopsy results of conization.
2.Pathological analysis of pancreatic colloid carcinoma in 7 cases.
Xia MIN ; Ji-zhong GUO ; Qiang ZHAN
Chinese Journal of Oncology 2007;29(5):377-378
Adenocarcinoma, Mucinous
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metabolism
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pathology
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surgery
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Aged
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Biomarkers, Tumor
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metabolism
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Carcinoembryonic Antigen
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metabolism
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Carcinoma, Pancreatic Ductal
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metabolism
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pathology
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surgery
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Carcinoma, Papillary
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metabolism
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pathology
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surgery
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Cystadenocarcinoma, Mucinous
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metabolism
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pathology
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surgery
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Diagnosis, Differential
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Duodenal Neoplasms
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metabolism
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pathology
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surgery
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Female
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Follow-Up Studies
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Humans
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Immunohistochemistry
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Male
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Middle Aged
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Mucin-2
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Mucins
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metabolism
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Neoplasm Invasiveness
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Pancreatic Neoplasms
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metabolism
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pathology
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surgery
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Pancreaticoduodenectomy
3.Laparoscopic operations for ectopic pregnancy:A report of 148 cases
Ailing XIE ; Zhong LIN ; Jie ZHAN
Chinese Journal of Minimally Invasive Surgery 2005;0(09):-
Objective To evaluate the efficacy of laparoscopic operations in the treatment of ectopic pregnancy.Methods A total of 148 cases of tubal pregnancy from January 2002 to January 2005 were studied.Laparoscopic operations included 106 cases of oviduct-sparing operation(79 cases of oviduct fenestration and 27 cases of lesion clearance),37 cases of salpingectomy,and 5 cases of lesion clearance.Results The diagnosis and operation were laparoscopically completed in all the 148 cases.Persistent ectopic pregnancy occurred in 2 cases.Postoperative monitoring of serum ?-hCG levels showed the shortest recovery time to normal levels after the treatment of salpingectomy(8?1 d),and the longest one after lesion clearance (15?2 d).Regular menstruation resumed at((31?)2 d) after salpingectomy and at(43?3 d) after lesion clearance.Follow-up checkups with uterotubography in 84 cases for 1~3 months(mean,2.3 months) found a patent rate of both oviducts of 82.1%(69/84).Conclusions Laparoscopic operations is a safe and effective option in the treatment of ectopic pregnancy.
4.Study on antioxidant effect of Astragalus polysaccharide
Chengwen SUN ; Guogan ZHONG ; Shu ZHAN
Chinese Pharmacological Bulletin 1987;0(02):-
Xanthine-Xanthine oxidase ( X-XOD) added to the culture medium of cultured cardiac cells in rats may damage cell membrane. Electrophysiological findings indicated that APA, MDP, OS,Vmax, were decreased and the SDF was increased. Astragalus polysaccharide (APS) could protect the cells from being damaged by X-XOD. APS recoverted all the de-creased cardiac functional parameters in free-radical-damaged rats by X-XOD. APS had anti-free-radical damage action on the cultured my-ocardiocytes and the myocardial contractility of the isolated rat working heart.
5.Clinical-pathological features and prognosis analysis of 218 esophagogastric junction malignant tumor
Hui CHEN ; Jun ZHAN ; Zhong YU ; Wa ZHONG ; Siqi LIU
Chinese Journal of Digestion 2015;35(5):328-332
Objective To explore the relation between clinical-pathological features,Siewert classification and prognosis of esophagogastric junction (EGJ) carcinoma,and to assess the applicability of the new edition of American Joint Committee of Cancer (AJCC) staging guideline on EGJ adenocarcinoma in China.Methods From 2002 to 2012,the clinical data,pathological features,treatment and prognosis of 218 patients with EGJ malignant tumor were retrospectively analyzed.The patients were typed according to Siewert classification criteria and each case was staged according to 7th edition of AJCC TNM staging criteria for esophagus adenocarcinoma and gastric cancer.Kaplan-Meier method and Log-rank test were performed for survival analysis.Results According to the Siewert classification,type Ⅰ was rare (nine cases,4.1%),type Ⅱ was the most common type (150 cases,68.8%) and followed by type Ⅲ (59 cases,27.1%).There was no significant difference in survival curve among the three types (P>0.05).The survival curve was drawn according to 7th edition of AJCC TNM staging criteria for esophagus adenocarcinoma.In T staging,the prognosis of patients at T4b was better than that of patients at T4a,the prognosis of patients at ⅡB was better than that of patients at ⅡA.The survival curve of patients at Ⅲ C obviously crossed with that of patients at Ⅳ,which was not in conformity with clinical results.The survival curve was drawn according to 7th edition of AJCC staging criteria for gastric cancer.In T staging,the survival curve of patients at Tis was overlapped with that of patients at T1a.The survival rate of patients at ⅡB could not be accurately predicted by the overall staging.In general,the survival of patients with EGJ carcinoma was better predicted according to 7th edition of AJCC staging criteria for gastric cancer than 7th edition for esophagus adenocarcinoma.Conclusions Neither 7th edition of AJCC staging criteria for esophagus adenocarcinoma nor for gastric cancer could accurately predict its prognosis.In our country,EGJ malignant tumor was similar to gastric cancer and had specific clinical-pathological features.It is necessary to research and establish EGJ carcinoma staging criteria instead of applying the current staging criteria for esophagus adenocarcinoma or gastric cancer.
6.Analysis of histopathological features in 850 cases of esophageal malignant tumor
Hui CHEN ; Jun ZHAN ; Zhong YU ; Wa ZHONG ; Siqi LIU
Chinese Journal of Digestion 2015;35(12):816-821
Objective To explore the histopathological features of 850 patients with esophageal malignant tumor in 10 years.Methods From January 2002 to January 2012, 850 patients diagnosed with esophageal malignant tumor were enrolled.Tumor location, general type, pathological type and TNM stage were retrospectively analyzed.All the data were described as case number and percentage.Results Among the 850 cases of esophageal malignant tumor, 33 lesions (3.9%) located in the neck segment of esophagus, 119 lesions (14.0%) located in the upper segment, 44 lesions (5.2 %) located in the upper-middle segment, 409 lesions (48.1%) located in the middle segment, 123 lesions (14.5 %) located in the middle-lower segment, 122 lesions (14.4%) located in the lower segment.Among the 724 eases clearly diagnosed as esophageal malignant tumor by general type, the most cases were ulcer type (305 cases, 42.1%), followed by medulla type (260 cases, 35.9%), fungating type (80 cases, 11.0%) and constrictive type (70 cases, 9.7%), and the least cases were intraluminal type (nine cases, 1.2%).Among the 850 cases of esophageal malignant tumor, squamous cell carcinoma (794 cases, 93.4 %) was the most common cytological type, followed by small cell carcinoma (19 eases, 2.2%), and the least common cytological type was adenocarcinoma (seven cases, 0.8 %).Among the 724 cases with clear TNM staging, case number of Tis, T1, T2, T3 and T4 stage was eight (1.1%), six (0.8%), 271 (37.4%), 278 (38.4%) and 161 (22.2%), respectively.Among the 122 cases of distal esophageal carcinomas (104 cases with clear TNM staging), most cases were squamous cell carcinoma (112 cases, 91.8 %), the others cases were adenocarcinoma (three cases, 2.5 %), small cell carcinoma (three cases, 2.5 %), basaloid squamous cell, adenosquamous, neuroendocrine carcinomas and carcinosarcoma (one case in each type, 0.8%).Conclusions Esophageal carcinoma was mostly located in the middle segment of in which squamous cell carcinoma was predominant while adenocarcinoma was less common.Esophageal cancer located at lower segment of esophagus is with a wide range of pathological spectrum, squamous cell carcinoma was still dominant, however, esophageal adenocarcinoma is rare.
7.Investigation of properties of the resveratrol-beta-cyclodextrin inclusion complex by drug-protein interaction spectra and molecular modeling.
Ming GUO ; Min-Zhong ZHAN ; Yan-Ke JIANG
Acta Pharmaceutica Sinica 2014;49(5):726-733
The supramolecular inclusion properties of beta-cyclodextrin (beta-CD) and resveratrol (Res) were investigated using drug-protein interaction spectroscopy method. The differences between the results of interaction spectroscopy method and the results of classical method were compared. The total energy of the stable inclusion of cyclodextrin-resveratrol was calculated by Gaussian theory calculation. The stable inclusions in the process of interaction between resveratrol/inclusion complex and bovine lactgoferrin (BLF) were studied by molecular modeling. The results showed that the interaction spectroscopy method could explain the property of the inclusion in a more sensitive manner, it also interpreted the conveying mechanism of BLF binding with inclusion complex. The molecular modeling result showed consistent results with Gaussian theory calculation; both of the two methods obtained the stable configuration of beta-CD-Res inclusion. The relevant result provided an experimental consequence for the pharmacology research of beta-cyclodextrin-resveratrol inclusion complex as well as offering a new reference to the future research of supramolecular inclusion compound.
Animals
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Cattle
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Lactoferrin
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chemistry
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Magnetic Resonance Spectroscopy
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Models, Molecular
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Stilbenes
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chemistry
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beta-Cyclodextrins
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chemistry
8.Research progress in bevacizumab treatment of high grade glioma
Hailan WANG ; Zhengyu ZHAN ; Miao FENG ; Luxing ZHONG
Chinese Journal of Clinical Oncology 2013;(16):1001-1004
Glioma is the most frequently observed primary tumor of the central nervous system in adults. Among the glioma cases, more than three quarters of patients suffer from high-grade gliomas. High-grade glioma is not only a high-degree malignant tumor but is also an easily recurring disease after surgery with a very poor prognosis. Radiotherapy plus concomitant chemotherapy after operation is the standard treatment strategy for high-grade gliomas, which could increase the survival rate of patients. However, the curative effect is really not satisfactory because it could only guarantee a limited survival time. Over the recent years, molecular-targeted treatment has increasingly drawn the attention of scholars with the continuous development in glioma treatment, thereby becoming the hotspot among researchers. Vascular endothelial growth factor (VEGF) is highly expressed in glioma and in the tissues surrounding the cancer cells. VEGF could regulate tumor growth by inducing endothelial cell proliferation, growth, migration, and by increasing the vascular permeability. Hence, VEGF becomes an effective target for the treatment of glioma. Bevacizumab is a monoclonal antibody that can specifically prevent the combination of VEGF and its receptor, thereby inhibiting the formation of tumor blood vessels. At the same time, bevacizumab can normalize the tumor blood vessels, improve the permeability of blood vessels, and increase the effectiveness of drug concentration in the tumor tissues, thereby achieving anticancer efficacy. In this paper, the mechanism of bevacizumab is introduced. The research progress in the application of bevacizumab alone, as well as in combination with chemotherapy or other drugs, for the high-grade glioma treatment will be summarized.
9.The clinical manifestations of olivopontocerebellar atrophy and the diagnostic value of MR
Ye ZHONG ; Gang WU ; Jun XU ; Qingxia ZHAN ; Xuemei ZHANG
Chinese Journal of Postgraduates of Medicine 2014;37(11):45-47
Objective To investigate the clinical manifestations and MR imaging features of olivopontocerebellar atrophy(OPCA).Methods The clinical data and MR findings of 8 patients with OPCA (OPCA group) were retrospectively analyzed,and 75 cases of healthy physical examination people were chosen as control group (they were divided into 21-30 years group,31-40 years group,41-50 years group,51-60 years group,61-70 years group,and 15 cases in each group),all subjects under went pons measurement.Results All 8 patients with OPCA were sporadic cases.The cerebellar symptom,autonomic symptoms and extrapyramidal symptoms were common manifestations.The head MR imaging of OPCA presented with cerebellum and brain stem atrophy,cross sign was the characteristic appearance.Vertical diameter and anteroposterior diameter of the pons in OPCA group patients was (20.63 ± 2.16) and (16.74 ±4.37) mm,compared with control group [(27.14 ±1.73) and (22.28 ± 1.49) mm],there was significant difference (P < 0.01).In control group,vertical diameter and anteroposterior diameter of the pons maximum in 21-30 years group and 31-40 years group,increased with age,the value had been reduced,but there was no significant difference (P > 0.05).Conclusion MR is the first choice for the diagnosis of OPCA,combine with clinical manifestations may improve the diagnostic accuracy.
10.Troubleshooting of bioinequivalence of compound valsartan tablets.
Da SHAO ; Yifan ZHANG ; Yan ZHAN ; Xiaoyan CHEN ; Dafang ZHONG
Acta Pharmaceutica Sinica 2014;49(4):524-9
The study aims to evaluate the bioequivalence of valsartan hydrochlorothiazide tablets, and to investigate the potential cause of bioinequivalence. This was a single-center study with an open, randomized double-way crossover design. Test and reference preparations containing 160 mg of valsartan and 25 mg of hydrochlorothiazide were given to 36 healthy male volunteers. Plasma concentrations of valsartan and hydrochlorothiazide were determined simultaneously by LC-MS/MS. The pharmacokinetic parameters and relative bioavailability were calculated, while the bioequivalence between test and reference preparations were evaluated. The dissolution profiles of test and reference preparations in four different mediums were determined via dissolution test and HPLC. The similarity was investigated according to the similarity factors (f2). The F(o-t) and F(0-infinity) were (139.4 +/- 65.2)% and (137.5 +/- 61.2)% for valsartan of test preparations. It led to get the conclusion that test and reference preparations were not bioequivalent for valsartan. A significant difference was observed between test and reference tablets in the valsartan dissolution test of pH 1.2 hydrochloric acid solution. The key factor of the bioinequivalence might be that dissolution of valsartan in acid medium has marked difference between two preparations.