Objective To study the clinicopathological characteristics and ultrastructural features of secretory meningioma.Methods A total of 19 cases of secretory meningioma were studied by clinicopathology,immunohistochemical and ultrastructural observation.Results Eosinophilic hyaline inclusions with different sizes were found in cytoplasm of tumor cell,which were positive to PAS and alcian blue stains.These inclusions were secreted by microvesicles in cytoplasm of tumor cell under electron microscopy.Conclusion Immunohistochemistry and ultrastructural observation play important roles in the diagnosis and differential diagnosis of this tumor.

Purpose:To evaluate the efficacy and toxicity of the biweekly regimen of high dose leucovorin (CF), continuous central venous infusion(ccvi) of fluorouracil (5 FU) and oxaliplatin (OXA)for advanced and refractory colorectal cancer.Methods:28 patients (12 in rectum,16 in colon) received biweekly CF/5 FU/OXA (CF: 200 mg/m 2,ccvi 2 hour,days 1～2;5 FU:400mg/m 2,iv.,day 1; 5 FU: 1.6 g/m 2,ccvi.22 hours, days 1～2; OXA: 135 mg/m 2,ccvi.4 hour,day 1,every two weeks).Four treatment courses were carried out with an interval of one month.Results:The overall response rate was 39.28%.The response rates of rectal,colonic cancers were 33.33%% and 43.13%, respectively.Median duration of 11 partial responses were 5.0 months.Median survival of all patients was 7.0 months. Median survival of responsive patients,and non responsive was 11.0 and 7.0 months,respectively( P

To study the clinico pathological characteristics of primary cardiac tumors, one hundred and fifty one primary cardiac tumors were studied pathologically. Immunohistochemical study was also performed in nineteen cases. The results showed that of all the tumors, five were malignant, and one hundred and forty six were benign, in which myxoma accounted for one hundred and fifty four. Epithelial cells forming glands were immunoreactive for keratin or epithelial membrane antigen (EMA) in two cases of myxoma, indicating epithelial differentiation. It is the authors′ opinion that clinical manifestations in combination with pathological features and immunochemical characteristics were helpful in differential diagnosis of malignant cardiac tumors

The human atrial muscle cells were investigated by ultrastructural CMPase cytochemistry and atrial natriuretic factor (ANF) immunocytochemistry. The primary lysosomes and ANF were labelled by these techniques, respectively. ANF was localized in the atrial specific granules, these granules were similar in size and 0.20? 0.051?m in diameter, distributed over the entire cytoplasm, preferentially being located in the subsarcolemmal and perinuclear region and forming clusters. Primary lysosomes were various in size, 0.30?0.191?m in diameter, significantly larger than atrial specific granules (P

Objective To research the efficacy and safety of sequential rivaroxaban use in reducing blood loss after applying tranexamic acid(TXA)in total hip arthroplasty(THA).Methods According to the design by the random control principle,150 pa tients undergoing unilateral primary THA from September 2012 to June 2015 were selected and randomly divided into the group A,B,C,D and E (n=30).The group A did not use TXA,the group B received intravenous drip of 10 mg/kg TXA at 10 min before skin incision,the group Creceived intravenous drip of 15 mg/kg TXA at 10 min before skin incision,the group D respectively received intravenous drip of 15mL/kg TXA at 10 min before skin incision and after 3 h,the group E received intravenous drip of 15 mL/kg TXA at 10 min before skin incision and articular cavity use of 1 g TXA before closing the incision.Oral 10 mg rivaroxaban was given at postoperative 6-12 h when the drainage volume was less than 30 mL/h and then the conventional dose was used until postoperative 35 d.The intraoperative blood loss,postoperative drainage volume,hidden blood loss,blood transfusion rate,postoperative anticoagulation time,time of removing drainage tube,postoperative prothrombin time on postoperative 1 d,activated partial thromboplastin time,descend value of hemoglobin,and occurrence rates of postoperative deep vein thrombosis (DVT) and pulmonary embolism (PE) were observed in the group A,B,C,D and E.Results The intraoperative blood loss,postoperative drainage volume,hidden blood loss,blood transfusion rate and descend value of hemoglobin on postoperative 1 d had statistical differences among 5 groups(P＜0.05).The are significant differences between the group D and A in the intraoperative blood loss,postoperative drainage volume,hidden blood loss,blood transfusion rate,descend value of hemoglobin on postoperative 1 d,postoperative anticoagulation time and removal drainage tube time(P＜0.05).All cases had no symptomatic DVT and PE during the perioperative period and postoperative 3-month outpatient or telephone follow-up.Conclusion Sequential rivaroxaban use after applying TXA during THA perioperative period is safe and effective.Moreover intravenous drip of 15 mL/kg TXA at 10 min before skin incision and after 3 h has most significant effect in reducing bleeding volume during THA perioperative period.

Seventy two diabetic subjects type Ⅱ were given konjac food for 65 days.The data analysed by multiple F-test indicated that the fasting blood glucosc(FBG), 2-h postprandial blood glucose (PBG) at the 30th and 65th day after consuming the food were significantly reduced (P = 0.001, P200mg%) decreased on the average by 51.8 and 84.6 mg% respectively, those with FBG-O 150-200 mg% by 24.1 and 68.7mg%, and those with FBG-0200 mg%).It could be concluded that konjac food was very useful in both prevention and treatment of hyperglycemia.

Objective:To evaluate the efficacy and safety of cytoreductive surgery (CRS) in conjunction with hyperthermic intra-peritoneal chemotherapy (HIPEC) for treating patients with peritoneal carcinomatosis (PC) from colorectal cancer (CRC). Methods:A total of 62 CRC patients with complication of PC were divided into the CRS group, namely, Group One (n=29, CRS and systemic adju-vant chemotherapy) and the CRS+HIPEC group, namely, Group Two (n=33, CRS+HIPEC). The primary end point of the study was overall survival (OS) and the secondary end point was serious adverse events (SAE). Results:Patients' clinicopathologic characteris-tics, peritoneal carcinomatosis index, and completeness of cytoreduction therapy were well balanced and comparable between the two groups. The median follow-up was 41.9 mo (6.5 mo to 110.0 mo) in Group One and 32.0 mo (10.5 mo to 95.9 mo) in Group Two. The median OS was 8.5 mo (95%CI:4.9 mo to 12.1 mo) in Group One and 14.5 mo (95%CI:11.9 mo to 17.1 mo) in Group Two (P=0.007). Within 30 days after the surgery, SAE occurred in 3 of the 29 patients in Group One, and 9 of the 33 patients in Group Two (P=0.126). Multivariate analysis revealed that HIPEC, CC0-1 score, and chemotherapy over six cycles were the independent factors for OS improvement. Conclusion:The CRS+HIPEC method improves the OS of patients with PC from CRC, suggesting an acceptable safety.

BACKGROUNDTo evaluate the reversal effect of high dose tamoxifen on multidrug resistance to EP regimen in patients with non-small cell lung cancer.

METHODSA total of 41 patients with NSCLC were studied, who were resistant to EP regimen and were proved to have P-gp protein overexpression. All patients were randomizedly divided into two arms. Reversal group (n=21) received oral tamoxifen 100?mg, 2 times everyday on D1-5, together with EP regimen. Control group (n=20) were only given EP regimen.

RESULTSIn reversal group, complete response occurred in 1 patient, and partial response in 5; disease remained stable in 11 patients, and tumor progression occurred in 4 patients. The response rate was 28.6%(6/21). In control group, no response occurred; 9 patients had stable diseases, and the other 11 progressed. There was a significant difference in response rate between the two groups (P=0.012?1). In reversal and control groups, the median survivals were 8.4 and 4.6 months respectively (P < 0.01), and 1-year survial rates were 38.1% and 35.0% respectively. Reversal of P-gp occurred in 7 cases of reversal group (33.3%),and none in control group (P= 0.005?2) . There was no significant difference in toxicities between the two groups (P > 0.05).

CONCLUSIONSHigh dose tamoxifen can remarkably downregulate the expression of P-gp and partially reverse the multidrug resistance to EP regimen for non-small cell lung cancer.

The OPT101 photoelectric sensor has the characteristics of good photoelectric response,buih-in transimpedance amplifier and small size,which meet the needs of accurately near-infrared spectral measurement in medical near-infrared spectroscopy (NIRS) range.Our research team has developed a series of portable NIRS instruments for NIRS measuring in intensive care units (ICU).The characteristics and advantages of OPT101 in the development of clinical ICU-specific NIRS instruments were introduced.The research progress of our team on the development of ICU-NIRS instruments using OPT101 was reviewed.The prospect of OPT101 in clinical noninvasive detection was discussed.

OBJECTIVE To establish a method for simultan eous determination of 5 kinds of pentacyclic triterpenoids as 3-O- acetyl-pomolic acid in Chaenomeles speciosa ，and to analyze the difference in the contents of C. speciosa from different producing areas by different processing technologies . METHODS HPLC method was adopted . The determination was performed on COSMOSIL 5 C18-MS-Ⅱ column with mobile phase consisted of acetonitrile -0.005 mol/L ammonium dihydrogen phosphate solution （pH value adjusted to 6.5 with phosphoric acid ）（70∶30，V/V）at the flow rate of 1.0 mL/min. The column temperature was set at 30 ℃. The detection wavelength was set at 210 nm，and sample size was 20 μL. The contents of the other four pentacyclic triterpenoids were calculated according to quantitative analysis of multi -components by single -marker（QAMS）using oleanolic acid as internal reference . The results were compared with those determined by external standard method . The total content of oleanolic acid and ursolic acid ，the total content of 5 components in C. speciosa from different producing areas and different processing technologies were compared . RESULTS The linear range of 3-O-acetyl-pomolic acid ，betulinic acid ，oleanolic acid ，ursolic acid and 3-O-acetyl ursolic acid were 4.06-81.2，2.12-42.4，9.62-192.3，7.77-155.4，4.21-84.1 μg/mL，respectively（R2＞0.999）. RSDs of precision ，reproducibility and stability （24 h）tests were all lower than 3%. The average recoveries were 98.29%-101.38% （RSDs＜3%，n＝6）. The mass fraction of 3-O-acetyl-pomolic acid ，betulinic acid ，ursolic acid and 3-O-acetyl ursolic acid measured by QAMS w ere 0.023%-0.060%，0.044%-0.528%，0.101%-0.368%，0.067%-0.221%，respectively；the deviations from the results measured by external standard method were all within 8%. The total content of oleanolic acid and ursolic acid， the total content of 5 components in C. speciosa processed by fresh -cut technology from the same producing area were higher than those in C. speciosa processed by traditional technology ，and the total content of 5 components in C. speciosa from Chongqing Qianjiang were significantly higher than those from other producing areas （P＜0.05）. CONCLUSIONS QAMS method is established for the simultaneous determination of 3-O-acetyl-pomolic acid ，betulinic acid ，oleanolic acid ，ursolic acid and 3-O-acetyl ursolic acid in C. speciosa. Established method is simple ，rapid and accurate . The total content of 5 components in C. speciosa produced in Chongqing Qianjiang is higher ，and the total content of C. speciosa processed by fresh -cut technology from the same origin is higher than C. speciosa processed by traditional technology .