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ObjectiveTo investigate the intestinal absorption characteristics of multi-index components in Danggui Buxuetang with drug absorption simulating system （DASS） established by everted intestinal sac model. MethodThe intestinal absorption solution at different time points after administration of Danggui Buxuetang was collected and detected by high performance liquid chromatography （HPLC）， acetonitrile （A）-0.2% glacial acetic acid solution （B） was used as the mobile phase for gradient elution （0-16 min， 15%-23%A； 16-20 min， 23%-28%A； 20-25 min， 28%-30%A； 25-30 min， 30%A； 30-35 min， 30%-65%A； 35-45 min， 65%-95%A）， the detection wavelength was 302 nm. HPLC fingerprint of intestinal absorption solution was established and the common peak was calibrated， and the relative cumulative absorption rate of each index component was calculated. The relative cumulative absorption curves of components were fitted with various mathematical models by DDSolver 1.0 to explore the absorption law of different components. ResultThe absorption process of C2 （calycosin-7-glucoside） and C6 in Danggui Buxuetang was in line with zero-order equation， C9 was best fitted by Weibull equation， and the remaining 7 components were in line with Makoid-Banakar equation. C1 with C2， C3， C5， C7 and C10， C2 with C5 and C7， C3 with C4， C5， C7 and C10， C4 with C6 and C10， C5 with C7， C6 with C10， C7 with C10， C8 with C9 were absorbed simultaneously during the absorption process. With the prolongation of time， the overall cumulative absorption rate of Danggui Buxuetang increased. At 120 min， the overall cumulative absorption rate of Danggui Buxuetang exceeded 38%， and reached 49.14% at 180 min. ConclusionTen ingredients in Danggui Buxuetang are absorbed in the jejunum， but absorption law of various components is different， which shows that the intestinal absorption of compound preparations of traditional Chinese medicine （TCM） has multiple characteristics. Intestinal absorption study of TCM compound preparations with chemical composition as the index can reveal some of its absorption law， but it is not complete.
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OBJECTIVE：To analyze and compare th e contents of 6 kinds of monosaccharide in Astragalus membranaceus from different growth years . METHODS ：2-4 years old A. membranaceus from three areas were extracted with water extraction and alcohol precipitation ，Sevage deproteinization to obtain A. membranaceus polysaccharide. The samples were firstly hydrolyzed with trifluoroacetic acid （TFA）and then derivatized by 1-phenyl-3-methyl-5-pyrazolone（PMP）. HPLC analysis was adopted to determine the contents of 6 kinds of monosaccharide as mannose ，rhamnose，galacturonic acid ，glucose，galactose，arabinose. The determination was performed on Symmetry C 18 column with phosphate buffer solution （pH 6.8）-acetonitrile（84∶16，V/V）as mobile phase at the flow rate of 1.0 mL/min. The detection wavelength was 245 nm，and column temperature was 35 ℃. The sample size was 20 µL. RESULTS ：The contents of mannose ，rhamnose，galacturonic acid ，glucose，galactose and arabinose were 0.50-0.94， 0.76-1.60，3.35-7.86，87.33-275.77，1.95-8.96，2.35-14.04 mg/g，respectively. Total contents of monosaccharide from 2，3，4 years old A. membranaceus were 98.26-139.92，173.81-295.71，122.37-182.41 mg/g，respectively. There was significant difference in the contents of glucose between 3 old years A. membranaceus and 2，4 old years A. membranaceus （162.71-275.77 mg/g vs. 87.33-107.70，111.54-167.26 mg/g，P＜0.05）. CONCLUSIONS ：Above 6 monosaccharides are detected in 2，3，4 years old A. membranaceus，among which the content of glucose is the highest. The content of glucose in 3 years old A. membranaceus is higher than that in 2 and 4 years old A. membranaceus .
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Objective:Real-time cell-based assay (RTCA) technology was used to detect the influence of compound Danshen tablets with different concentrations on cells to screen outthe sensitive, stable and concentration-dependent cell lines to provide reference for the quality evaluation experiment of cell biological effects of compound salvia miltiorrhiza tablets. Methods:The effects of compound Danshen tablets on human umbilical vein endothelial cells (Huvec), rat cardiac myocytes (H9C2) and rat thoracic aortic smooth muscle cells (RA-VSMC) were investigated by RTCA. The cell index (CI) was measured to form time-dose dependent cell response curves (TCRPs) to screen the the optimal cell lines by description analysis and statistical analysis. Results:All of the three cells show obvious response to the effects of compound Danshen tablets. The sensitivity of RA-VSMC was relatively poor, the range of effective concentrationof three cells was different, and the concentration gradient dependence was also different. H9c2 cells had good sensitivity to compound Danshen tablets, which was gradient dependent, and the effective concentration range wass 0.3-1.8 mg/ml, and it can be used as a cell for quality evaluation of compound Danshen tablets. Conclusions:RTCA technology can monitor and record the growth status of cells in real time. It can accurately reflect the effects of compound Danshen tablets on different cell lines. The data are objective and reliable. It provides a new experimental technology and method for the quality evaluation of compound Danshen tablets.
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Objective: Intraperitoneal chemotherapy is increasingly being used in the treatment of gastric cancer with peritoneal me-tastasis, because the drug can directly act on the metastatic nodules. Repeated treatment can be administered through implanted ports, provided the ports are appropriately managed. Our study aimed to investigate the safety of peritoneal port implantation in pa-tients with gastric cancer with peritoneal metastasis. Methods: We retrospectively reviewed the records of patients undergoing intra-peritoneal port implantation for the administration of chemotherapy between June 2015 and June 2018 to investigate the causes of complications and to discuss their management and prevention. Results: Fifty-five ports were implanted in 54 patients with median us-age time of 8.4 (0.8-32.0) months. Complications occurred at 13 port sites (23.6%), including obstruction (7.3%), severe pain (5.5%), in-fection (3.6%), reflux (3.6%), access difficulty (1.8%), and subcutaneous mass formation (1.8%). The median interval from the time of port implantation to the development of complications was 2.1 months. No factor contributing to the complications was identified (P>0.05). Conclusions: Peritoneal port implantation to systematic chemotherapy in patients with gastric cancer with peritoneal metastasis is safe and feasible if the ports can be carefully managed.
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OBJECTIVE:To establish a method for simultaneous determination of hyperoside,quercitrin,luteoloside, kaempferol,quercetin,rutin,luteolin and isorhamnetin in total flavanones of Sedum sarmentosum Bunge. METHODS:UPLC-MS/MS method was adopted. The determination was performed on ZOBAX SB C18column with mobile phase consisted of methanol-5 mmol/L ammonium formate aqueous solution(45:55,V/V)at the flow rate of 0.4 mL/min. The column temperature was 30 ℃, and sample size was 2 μL. The electrospray ionization source(ESI)was used;ion source temperature was 400 ℃;desolvation temperature was 300 ℃;desolvation gas flow was 600 L/h;capillary voltage was 3 000 V;nebuliser pressure was 45 psi;the work mode was multiple reaction monitoring mode;detection mode was negative ion mode. The established method was used to determine the contents of 8 components in 3 batches of total flavanones of Sedum sarmentosum Bunge. RESULTS:The linear ranges of hyperoside,quercitrin,luteoloside,kaempferol,quercetin,rutin,luteolin and isorhamnetin were 10.0-640.0,0.5-32.0, 4.5-288.0,8.0-512.0,50.0-3 200.0,2.0-128.0,12.5-800.0 and 25.2-1 612.8 ng/mL(r≥0.991 4),respectively. The limits of detection were 5.0,0.25,2.25,4.0,25.0,1.0,6.25 and 12.6 ng/mL,respectively.The limits of quantitation were 10.0,0.5,4.5, 8.0,50.0,2.0,12.5 and 25.2 ng/mL,separately. RSDs of precision,stability(24 h)and reproducibility tests were no more than 4.3%(n=6). The recoveries were 95.9%-100.6%,and RSDs were 1.5%-3.8%(n=6). The contents of hyperoside,quercitrin, luteoloside,kaempferol,quercetin,rutin,luteolin and isorhamnetin in 3 batches of total flavanones of Sedum sarmentosum Bunge were 507.88-560.37,42.95-50.36,63.52-71.80,1 695.10-1 753.27,10 569.28-10 612.99,25.76-30.13,2 795.22-2 877.43 and 4 869.55-4 971.30 μg/g,respectively. CONCLUSIONS:The established method can be used for simultaneous determination of 8 components in total flavanones of Sedum sarmentosum Bunge.
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OBJECTIVE:To establish a method for the simultaneous determination of(R,S)-goitrin,chlorogenic acid,luteolo-side and isochlorogenic acid A in Xiaoer ganmao granule. METHODS:HPLC was performed on the column of Hedera C18 with mo-bile phase of acetonitrile-0.1% formic acid aqueous at a flow rate of 1.0 ml/min,the detection wavelength was 254 nm,330 nm and 370 nm,column temperature was 40 ℃,and the injection volume was 5 μl,RESULTS:The linear range was 6.6-105 μg/ml for (R,S)-goitrin (r=0.999 9),9-140 μg/ml for chlorogenic acid (r=0.999 9),9-144 μg/ml for luteoloside (r=0.999 8) and 9-138 μg/ml for isochlorogenic acid A(r=0.999 6);the limits of quantitation were 330 ng,450 ng,450 ng and 450 ng,limits of detection were 66 ng,90 ng,90 ng and 90 ng,respectively;RSDs of precision,stability and reproducibility tests were lower than 3%;recoveries were 95.01%-98.77%(RSD=1.48%,n=6),95.14%-98.91%(RSD=1.52%,n=6),95.11%-97.54%(RSD=0.93%,n=6) and 95.58%-99.63%(RSD=1.73%,n=6). CONCLUSIONS:The method is simple and accurate,and suitable for the simultaneous determination of(R,S)-goitrin,chlorogenic acid,luteoloside and isochlorogenic acid A in Xiaoer ganmao granule.