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Objective To establish fingerprint of Hupulus lupulus by HPLC.Methods Diamonsil C18column (250mm×4.6mm, 5μm) was used.The mobile phase consisted of acetonitrile and 0.1％phosphoric acid, in gradient elution mode, detection wavelength was 358nm, column pressure at 10.2MPa, column temperature was 30℃, injection volume of 10μl and flow rate was 1.0ml/min.Results A common mode of HPLC fingerprint of Hupulus lupulus was established.19common peaks were calibrated, xanthohumol, cohumulone, humulone, adhumulone, colupulone, lupulone and adlupulone for identification.Among the 26batches of Hupulus lupulus, 5batches of herbs had similarities of less than or equal 0.9, which were all wild varieties.Conclusion The method was fast, effective, accurate and reliably to distinguish the cultivation and wildness Hupulus lupulus, which provided reference for quality control of Hupulus lupulus.
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Objective To determine the contents of total flavonoids and xanthohumol in hop from 29 different countries and regions .Methods Rutin colorimetric method was used to determine the content of total flavonoids .HPLC-UV method was established for the determination of xanthohumol in hops .HPLC method was performed by Dikma Technologies Diamonsil C18 (250 mm × 4 .6 mm ,5 μm ) column with mobile phase acetonitrile-1％ glacial acetic acid solution at the flow rate of 1 .0 ml/min .The column temperature was 25 ℃ .The detection wavelength was 370 nm .Results The equation of linear re-gression of total flavonoids was A=30 .345C+0 .0168 ,r=0 .9999 .The equation of linear regression of xanthohumol was A=55446 C+9040 .5 ,r=0 .9999 .Their linear ranges were respectively 20 .2-404 .0 μg/ml ,2 .152-43 .040 μg/ml ,which indica-ted a good linear relationship .The RSDs of precision and repeatability were less than 2％ .The average recoveries of flavonoids and xanthohumol were respectively 102 .71％ and 100 .21％ .Conclusion The contents of total flavonoids and xanthohumol in different hops varieties are significantly different and the import hops was better than the domestic hops in this study .
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Objective To develop a method for determination of iridoid glycosides in Morinda officinalis How.and optimize the extraction methods for iridoid glycosides in Morinda officinalis How.Methods The iridoid glycosides, including monotropein, deacetyl asperulosidic acid,asperulosidic acid and asperuloside as standards, HPLC method was developed to determine the content of iridoid glycosides in Morinda officinalis How.The separation was performed on Venusil MP C18 (250 mm×4.6 mm, 5 μm) column.The mobile phase was acetonitrile (A)-0.2% phosphoric acid and 0.01 disodium hydrogen phosphate buffer salt (B) with gradient elution (0-12 min, 1%-2% A;12-30 min, 2%-25% A).The detection wavelength was 235 nm.The flow rate was set at 1.0 ml/min and the column temperature at 25 ℃.The injection volume was 20 μl.Single factor analysis and orthogonal test were used to optimize extraction method of iridoid glycosides in Morinda officinalis How.Results Monotropein, deacetyl asperulosidic acid, asperulosidic acid and asperuloside showed good linearity (r>0.999 5) in the ranges of 0.375-12 μg, 0.13-4.16 μg, 0.016-0.516 μg and 0.012-0.384 μg, respectively.This validated method has good repeatability, precision, recovery and stability.It was conformed to meet the requirements and regulation.The optimal extraction method included soaking the raw materials with 16 times of 10% ethanol for 9 h, and then extraction by percolation with the flow rate of 0.8 BV/h.Conclusion The HPLC method sensitively and precisely determined the content of iridoid glycosides in Morinda officinalis How.The optimized extraction method extracted these constituents effectively.
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Objective To evaluate the clinical significance of different localizations of juxtapaillary duodenal diverticula of patients with endoscopic retrograde cholangiopancreatography for pancreaticobiliare disease.Methods We studied patients in whom juxtapaillary duodenal diverticula was detected during endoscopic retrograde cholangiopancreatography form January 2010 to April 2016 in Department of Hepatobiliary Surgery,Dongyang People's Hospital of Zhejiang Province.The influence of juxtapaillary duodenal diverticula on the success rate of endoscopic retrograde cholangiopancreatography and the incidence of associated complications was analyzed.Measurement date were represented as ((x) ± s) comparison between the groups was analyzed by the t test.Count date were evaluated by the frequency and percentage,comparison between the groups was analyzed by the chisquare test or Fisher exact probability method.Results Juxtapaillary duodenal diverticula were present in 67 (14.11％) of the 475 patients undergoing endoscopic retrograde cholangiopancreatography for various indictions.Of the 67 patients,38 (56.72％) patients were peridiverticular papilla and 29 (43.28％) patients were intradiverticular papilla.The presence of cannulation success on first attempt was signicantly different between juxtapaillary duodenal diverticula group and non-juxtapaillary duodenal diverticula group(P =0.022),whereas the presence of c annulation success on total attempt was no-different between two groups(P =0.086).The presence of cannulation success on first attempt and total attempt was signicantly different between peridiverticular papilla group and intradiverticular papilla group(P =0.002,P =0.001).The presence of post-ERCP pancreatitis and bleed were more frequently in juxtapaillary duodenal diverticula group (P =O.023,P =0.003),but the different was non-signicantly between peridiverticular papilla group and intradiverticular papilla group (P =1.000,P =1.000).Conclusion Juxtapaillary duodenal diverticula detection rate and different location increase the difficulty of endoscopic retrograde cholangiopancreatography and maybe increase the presence of complications.
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Objective To evaluate the clinical significance of juxtapaillary duodenal diverticula (JPDD) in patients of acute calculous cholangitis (AC) with different severity grade.Methods A retrospective analysis was carried out for 488 AC cases of different severity from January 2011 to December 2013 who underwent duodenoscopy in Dongyang People's Hospital.Results Of the 488 patients, the JPDD was found in 2.87％, 6.15％ and 4.10％ in patients with mild, moderate and severe AC, respectively.The prevalence of JPDD in severe AC were significantly higher in the moderate and mild AC (x2 =4.486, P =0.034;x2 =14.686, P ＜ 0.001);Procalcitonin (PCT) concentrations in severe AC of JPDD were significantly higher in moderate and mild AC of JPDD (t =10.420 9, P ＜ 0.001;t =4.870 4, P ＜ 0.001).The cannulation failure rate and the amylase were significantly higher in JPDD patients compares to patients without JPDD (x2 =36.95, P ＜ 0.001;t =8.29, P ＜ 0.001).Conclusions JPDD detection rate increases with aging and seems to be associated with acute cholangitis (AC) with different severity grade and PCT concentration.JPDD predicts a higher cannulation failure rate and the amylase level after duodenoscopy.
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Objective To evaluate the role of procalcitonin in patients with different severity grades of acute cholangitis (AC).Methods A retrospective study was carried out on 147 patients with different severity grades of AC who were treated from May 2012 to November 2013 at the Dongyang People's Hospital.Results Of 147 patients,the PCT concentrations were (165.63 ± 32.67) pg/ml,(348.97 ± 45.78) pg/ml,(758.91 ± 28.94) pg/ml for patients with mild,moderate and severe AC respectively.The PCT concentrations were significantly higher in patients with severe AC than those with moderate AC (P ＜ 0.05),and also in patients with moderate AC than those with mild AC (P ＜ 0.05).The top three bacteria obtained from blood culture from the different severity grades of AC showed no significant diferences (P ＞ 0.05).Conclusion Serum PCT concentrations were elevated in patients with AC and it may be used as a parameter to assess the severity of AC.
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A safety protection method which can be used on perfusion hyperthermia Instrument. The method is based on temperature sensor, weighing sensor, and programming and featured with safe and simple, easy to achieve, fault detection, quick response.
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Equipment Design , Equipment Safety , Hyperthermia, InducedABSTRACT
Objective To explore the diagnosis and treatment of cholecystolithiasis accompanying periampullary tumor.Methods A retrospective analysis was performed with clinical data of 5 patients with cholecystolithiasis complicated with periampullary tumor among the 2680 patients receiving laparoscopic cholecystectomy(LC)in our hospital from May 1994 to March 2006.Results Pain in epigastrium,icteric sclera and skin were found in all 5 patients 0.5-17 months after LC.Neoplasms in ampulla were found in re-hospitalization,and periampullary tumor was diagnosed,which were missed in the first operation.Conclusions Improving the knowledge of cholecystolithiasis complicated with periampullary tumor,performing various auxiliary investigations,and reinforcing postoperative follow-up are beneficial for avoidance of missed diagnosis of periampullary tumor,and for early diagnosis and treatment.
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Objective To investigate the effective methods for treatment of severe chest trauma with multiple organ injury. Methods The injury conditions and the early treatment measures in 87 cases of severe chest trauma with multiple organ injury (especially within 48 h after injury) were analyzed retrospectively. Results Of the 78 patients, 61 patients survived, and 26 died (including 2 patients who abandoned treatment). The total mortality was 29 89%. Primary operation was performed on 37 patients with multiple organ injury, but 7 died (18 92%). Conclusion Diagnosis while rescuing, effective countershock treatment, early operation, protection of visceral functions, and preventive mechanical ventilation may be the important measures to guarantee the success of treatment of severe chest trauma with multiple organ injury.