Cystadenocarcinoma, Mucinous ; pathology ; surgery ; Cystadenocarcinoma, Serous ; pathology ; surgery ; Female ; Humans ; Lymphatic Metastasis ; Neoplasm Invasiveness ; Ovarian Neoplasms ; pathology ; surgery ; Ovariectomy ; methods ; Prognosis

ificantly lower than in both middle and low group(P＜0.05).Conclusion TP may improve the antioxidant ability of experimental aging mice.

This study is to determine six chlorogenic acids (chlorogenic acid, 5-O-caffeoylquinic acid, 4-O-caffeoylquinic acid, 3,4-di-O-caffeoylquinic acid, 3,5-di-O-caffeoylquinic acid and 4,5-di-O-caffeoylquinic acid) by quantitative analysis of multi-components with a single marker (QAMS). Chlorogeinc acid was used as internal reference to calculate the relative correction factors (RCF) of five compounds. Then the ruggedness of relative correction factors was tested on different instruments and columns. Meanwhile, a total of 4 batches of Lonicerae Flos and 20 batches of Lonicerae Flos extract with five different processing procedures were analyzed by external standard method (ESM) and QAMS, respectively. The ruggedness of relative correction factors was good. And the analytical results calculated by ESM and QAMS showed no difference. The quantitative method established was suitable for the quality evaluation of Lonicerae Flos extract.
Biomarkers ; analysis ; Chlorogenic Acid ; analysis ; Chromatography, High Pressure Liquid ; Drugs, Chinese Herbal ; analysis ; Flowers ; chemistry ; Lonicera ; chemistry

Objective To study the mechanism of oxidative stress involved in the pathogenesis and relapse of acute monocytic leukemia (M5 ).Methods We detected reactive oxide species (ROS)levels,conducted plasma analysis obtained from 76 M5 patients at diagnosis and at relapse,and observed the ultrastructure of mitochondria of mononuclear cells in peripheral blood by transmission electron microscope.Results Compared with that in the control group,the average fluorescence intensity of intracellular ROS was significantly increased in M5 groups, especially in the relapse patients (P < 0.05 ).Low total antioxidative capacity (T-AOC)and antioxidant enzyme activity were characteristic of M5 at both diagnosis and relapse. However, lactate dehydrogenase (LDH ), malondialdehyde (MDA)and 8-hydroxy-2’-deoxyguanine (8-OHdG)increased significantly at both diagnosis and relapse (P < 0.05 ).Prominent ultrastructural abnormalities (mitochondrial swelling,outer membrane blebs,and aberrant cristae disorder)were present in patients with primary M5,and they were obviously abnormal in relapsing M5 patients.Conclusion Oxidative stress is the initiating factor of M5.Mitochondria are the main intracellular location for ROS generation.To maintain the dynamic balance between ROS and antioxidant defence may be the critical factor for preventing relapse.

Objective To study the clinicopathologieal features and expression of cyclin D1 and p53 in epithelial ovarian tumors,and to investigate the correlation between pathogenesis of ovarian cancer and epithelial borderline tumors.Methods Fifty four cases of ovarian borderline tumors and 45 cases of ovarian carcinomas from the People's Hospital,Peking University were reviewed retrospectively.The clinical data and pathological findings were analyzed.Immunohistochemical study of cyclin D1 and p53 was performed in all 99 cases.Results(1)In borderline tumors,the age of patients ranged from 14-82 (mean age=42.5)years.International Federation of Gynecology and Obstetrics(FIGO)stage of borderline tumors was stage Ⅰ in 48 cases,stage Ⅱ in 3 cases,and stage Ⅲ in 3 cases.In ovarian carcinomas,the age of patients ranged from 26-80(mean age=53.5)years.FIGO stage of carcinoma was stage Ⅰ in 6 cases, stage Ⅱ in 8 cases,stage Ⅲ in 26 cases,and stage Ⅳ in 5 cases.In follow-up of 54 cases with borderline tumors the 5-year survival rate was 98% and of 45 cases with carcinomas a 5-year survival rate of 51% was noted.(2)In 54 cases of borderline tumors,mucinous types accounted for 56%(30/54)and serous types accounted for 30%(16/54).There were 5 cases with micropapillary pattern,3 cases with peritoneal implants,3 cases with lymph node involvement,6 cases with microinvasion,one case with intraepithelial carcinoma,and one case with mural nodules.In 45 cases of carcinomas,serous carcinoma was the most (49%,22/45).The remainder included 3 cases of mucinous types,8 cases of endometrioid types,6 cases of transitional cell types,3 cases of mixed phenotype and 3 cases of undifferentiated types.(3) Overexpression of cyclin D1 and p53 was observed in 31%(14/45)and 56%(25/45)of ovarian carcinomas, respectively.There was a significant association between p53 overexpression and tumor grade.In the borderline tumor group,69%(37/54)had overexpression of cyelin D1 and 6%(3/54)had overexpression of p53.There were significant differences in expression of cyclin D1 and p53 between conventional serous borderline tumors and high-grade serous carcinomas(cyclin D1:91% vs 26%;p53:0 vs 58%).However, micropapillary serous borderline tumors and low-grade serous carcinomas showed remarkably similar expression of cyelin D1 and p53.Conclusions Epithelial ovarian borderline tumors are distinct from ovarian cancer in clinical progress and prognosis,and histological types.Overexpression of cyclin D1 is common in ovarian borderline tumors and low grade carcinomas.And overexpression of p53 is more common in high grade ovarian carcinomas.Conventional serous borderline tumors are distinct from high-grade serous carcinomas in pathogenesis.Micropapillary serous borderline ovarian tumors may be closely related to low grade serous carcinomas.

OBJECTIVE: To explore the applicability of integration between three-dimensional (3D) facial and dental data to evaluate the nasolabial morphology variation before and after the cross-arch fixed restoration of the maxillary implant-supported prostheses. METHODS: Twelve patients (4 women and 8 men), mean age (54.82±5.50) years (from 45 to 62 years) referred to the Department of Oral Implan-tology, Peking University School and Hospital of Stomatology, were selected and diagnosed with edentulous maxilla. For all the patients, 4 to 6 implants were inserted into the maxilla. Six months later, the final cross-arch fixed prostheses were delivered. The 3D facial images were collected before and after the final restoration. The 3D data of prostheses were also captured. All the 3D data were registered and measured in the same coordinate system. Then the displacement of all the landmarks [cheilion left (CHL), cheilion right (CHR), crista philtri left (CPHL), crista philtri right (CPHR), labrale supe-rius (LS), subnasale (SN), stomion (STO), upper incisor (UI), upper flange border of the prostheses (F-point, F)], and the variation of the distances between these landmarks (SN-LS, CPHR-CPHL, CHR-CHL, LS-STO) were analyzed and compared. RESULTS: The consistency test among three measurements of the length of F-SN indicated that the integration method of the dental prostheses and soft tissue had the good repetitiveness, ICC=0.983 (95%CI: 0.957-0.995). After wearing the final cross-arch maxillary implant-supported prostheses, all the landmarks on the soft tissue moved forward. The nasal base area changed minimally, and the shift of SN in the sagittal direction was only (0.61±0.44) mm. But the sagittal shift of LS was (3.12±1.38) mm. In the vertical direction, SN, LS, CPHL, and CPHR moved upward. But STO, CHL, and CHR moved downward a little. Except for the slight decrease of the length of philtrum (SN-LS), the length of CHL-CHR, CPHL-CPHR, and the height of upper lip were increased together (P < 0.01). In the direction of Z axis, the strong correlations were found not only between the movements of SN and F (r=0.904 3) but also between the movements of LS and UI (r=0.958 4). CONCLUSION The integration method of 3D facial and dental data showed good repetitiveness. And the strong correlations between the landmarks of prostheses and nasolabial soft tissue in the sagittal direction were found by this new method.
Female ; Humans ; Incisor ; Lip ; Male ; Maxilla/surgery* ; Middle Aged ; Mouth, Edentulous ; Prostheses and Implants

OBJECTIVETo investigate the therapeutic experience of gastrointestinal stromal tumors (GIST) and to analyze the pathological features and prognostic factors of GIST.

METHODSThe clinicopathological and follow-up data of 181 patients with GIST admitted in Renji Hospital between January 1999 and December 2007 were analyzed retrospectively. All the cases were grouped according to Fletcher's risk scheme. Life table and COX regression model were used to evaluate the prognostic factors.

RESULTSOut of 181 tumors, 107(59.1%) were located in stomach, 51 (28.2%) in intestine and 23(12.7%) in colorectum or other sites. Distant metastases,including liver metastases were found in 7 patients intraoperatively. Tumor size ranged from 0.5 to 30 cm with the mean of 7.02 cm. The positive rate of CD117 was 94.5% (171/181) and that of CD34 was 86.2% (156/181). One hundred and seventy-six patients underwent complete resections, including multi-organ resections in 26 patients. The other patients underwent palliative operations. The 1-, 3- and 5-year overall survival rates of 181 patients were 95.2%, 87.9% and 78.5% respectively. Univariate analysis revealed age, tumor size, primary organ of tumor, mitotic count, Fletcher's classification and multi-organ resection were associated with survival rate. No significant difference of sex was existed among groups. COX hazard proportional model revealed that advanced stage and large tumor size indicated worse prognosis. Eight patients with high risk of recurrence and 3 patients with recurrence and metastasis were stable after receiving imatinib therapy.

CONCLUSIONSThe diagnosis of GIST depends on endoscope and CT. Fletcher's classification is simple and effective to evaluate GIST behavior and prognosis. Surgical resection is still the main therapy for GIST and targeted therapy will play a more important role for prognosis in the future.

Adult ; Aged ; Aged, 80 and over ; Female ; Follow-Up Studies ; Gastrointestinal Stromal Tumors ; diagnosis ; pathology ; surgery ; Humans ; Male ; Middle Aged ; Neoplasm Metastasis ; Prognosis ; Proportional Hazards Models ; Retrospective Studies ; Survival Rate ; Young Adult

OBJECTIVETo investigate the factors favoring a positive prognosis for advanced primary peritoneal carcinoma (PPC).

METHODSTwenty-four cases meeting the criteria for PPC were analyzed retrospectively for the clinicopathologic profiles. Immunohistochemistry was used to determine the expressions of p53, Top2alpha, Ki-67 and Her-2/neu. Then all these clinicopathological factors and molecular markers were correlated with the prognosis.

RESULTSThere were 15 cases of primary peritoneal serous papillary carcinoma (PPSPC), 6 cases of mixed epithelial carcinoma (MEC) and 3 cases of malignant mixed Mullerian tumor (MMMT). All patients underwent cytoreductive surgery with optimal debulking achieved in 3 cases. Among those receiving first-line chemotherapy, 13 patients received the TP regimen (paclitaxel-cisplatin or carboplatin) and 7 patients received the PAC regimen (cisplatin-doxorubicin-cyclophosphamide). The median overall survival of all patients was 42 months, while the breakdown for survival time for patients with PPSPC, MMT and MEC was 44, 13 and 19 months, respectively. The expressions of p53, Top2alpha and Ki-67 were all demonstrated in 11 cases respectively. None showed the expression of Her-2/neu. There were significant differences in the median survival between patients with PPSPC and those with MMMT (44 months vs 13 months, P<0.05), also between patients receiving TP combination and those receiving the PAC regimen (75 months vs 28 months, P<0.05). Another significant difference in the median progression-free survival (PFS) was identified between patients with positive p53 immunostaining and those with negative p53 immunostaining (15 months vs 47 months, P<0.05), whereas age, menopausal status, residual tumor size and the other molecular factors did not significantly impact survival.

CONCLUSIONPatients with PPC should be treated with a comprehensive management plan including appropriate cytoreductive surgery and responsive chemotherapy. Overestimating an optimal debulking surgery may not benefit survival. The pathologic subtype, chemotherapy regimen and p53 overexpression were significant prognostic factors.

Adult ; Aged ; Antigens, Neoplasm ; metabolism ; Antineoplastic Combined Chemotherapy Protocols ; therapeutic use ; Biomarkers, Tumor ; metabolism ; China ; epidemiology ; Combined Modality Therapy ; Cystadenocarcinoma, Papillary ; metabolism ; mortality ; pathology ; therapy ; DNA Topoisomerases, Type II ; metabolism ; DNA-Binding Proteins ; metabolism ; Female ; Humans ; Immunohistochemistry ; Ki-67 Antigen ; metabolism ; Middle Aged ; Mixed Tumor, Mullerian ; metabolism ; mortality ; pathology ; therapy ; Ovarian Neoplasms ; metabolism ; mortality ; pathology ; therapy ; Peritoneal Neoplasms ; metabolism ; mortality ; pathology ; therapy ; Prognosis ; Receptor, ErbB-2 ; metabolism ; Survival Rate ; Tumor Suppressor Protein p53 ; metabolism

BACKGROUNDPeritoneal tuberculosis and primary peritoneal carcinoma can both present as an abdominal mass and ascites with elevated serum CA125. The purpose of our study was to evaluate the clinical features of peritoneal tuberculosis, compare them with features of primary peritoneal carcinoma, and establish definitive diagnostic procedures.

METHODSWe conducted a retrospective study in patients with peritoneal tuberculosis from January 1995 to October 2010 at Peking Union Medical College Hospital. During this time, the data of 38 patients with primary peritoneal carcinoma were reviewed.

RESULTSThe median age was 34 years (range, 19 - 80 years). The most common symptoms were abdominal distension (16/30, 53.3%) and an abdominal mass (12/30, 40.0%). The serum CA125 level was elevated in 25 patients (83.3%). The median level of cancer antigen CA125 was 392.5 U/ml (range, 0.6 - 850.0 U/ml). Abdominal ultrasound revealed a pelvic mass in 25 patients and ascites in 20 patients. Diagnostic laparoscopy was performed in 15 patients (50.0%) and exploratory laparotomy was performed in 12 patients (40.0%), and 3 patients (10.0%) who underwent laparoscopy converted to laparotomy because of severe adhesions. The intraoperative findings were adhesions, multiple white tubercles, and ascites. Frozen tissue sections were obtained in 17 patients, and 14 of whom showed chronic granulomatous reactions. Final pathological examinations confirmed the diagnosis.

CONCLUSIONSPeritoneal tuberculosis should be considered as a differential diagnosis, especially for young women with an abdominal mass, ascites, and elevated serum CA125 levels. Laparoscopy is a useful diagnostic method for peritoneal tuberculosis, and intraoperative frozen sections are recommended when the diagnosis is in doubt.

Adult ; Aged ; Aged, 80 and over ; CA-125 Antigen ; blood ; Diagnosis, Differential ; Female ; Humans ; Male ; Middle Aged ; Peritoneal Neoplasms ; blood supply ; diagnosis ; Peritonitis, Tuberculous ; blood ; diagnosis ; Retrospective Studies ; Young Adult

To evaluate the prognostic value of lactate dehydrogenase (LDH) and beta2-microglobulin (beta2-MG) in chronic lymphocytic leukemia (CLL), a total of 141 cases of CLL had been investigated retrospectively. The Kaplan-Meier method was used to estimate the overall and failure-free survival distributions. Cox regression was used in univariate and multivariate analysis of potential predictors for overall survival. In multivariate analysis, the expression levels of LDH and beta2-MG were divided into 3 groups: (1) elevation of both LDH and beta2-MG levels; (2) elevation of LDH or beta2-MG levels alone; (3) normal levels of both LDH and beta2-MG. The results showed that serum LDH and beta2-MG levels of patients in Binet C were significantly higher than those in Binet A (p=0.034 and p=0.035). The level of serum beta2-MG was not correlated with lymphocyte count (p=0.756). Binet C and high LDH level were associated with significantly shorter overall survival. beta2-MG was not proved to have any association with overall survival. The overall survival time in group of elevation of both LDH and beta2-MG levels was shorter than that in group of normal levels of both LDH and beta2-MG. It is concluded that serum LDH level and Binet stage are important prognostic factors for CLL.
Adult ; Aged ; Aged, 80 and over ; Female ; Humans ; L-Lactate Dehydrogenase ; blood ; Leukemia, Lymphocytic, Chronic, B-Cell ; blood ; diagnosis ; Male ; Middle Aged ; Prognosis ; Retrospective Studies ; beta 2-Microglobulin ; blood