名老中医姜琦常用特色药对精析

姜琦为浙江省名老中医,原湖州市中医院院长,湖州市中医学会会长,1950年从师浙江省名医朱承汉先生,尽得师传,1952年出师即悬壶浙北,疗效卓著,渐为同仁推崇,病家信笃,至今临证60余载,年近八旬,仍临诊不辍,享誉江浙。姜老处方灵活精炼、疗效卓著,在长期临床实践中形成了大量实用有效的中药药对。撷取肉桂配知母、荆芥配苏叶、茺蔚子配决明子、炮姜炭配制军炭、柴胡稍配甘草稍、生晒参配北沙参等6组姜老临床常用且他书鲜有提及的药对,探究本源,加以精析,推之临床,汇集成篇,以资同道。

Enantioselective analytical methods in chiral drug metabolism

The chiral nature of biological systems enables their stereoselective interaction with chiral compounds. It has been well documented that the enantiomers ofa chiral drug may show differences in drug disposition especially in metabolic behavior. As a result, it is of vital importance to separate the enantiomers of a chiral drug in metabolic studies. This paper discusses enantioselective methods （include high-performance liquid chromatography, gas chromatography, capillary electrophoresis and high-performance liquid chromatography-mass spectrometry） that applied in chiral drug metabolism, using most recent examples where possible.

Chemical component analysis of volatile oil in drug pair Herba Ephedrae-Ramulus Cinnamomi by GC-MS and CRM

Active volatile components in drug pair(DP)Herba Ephedrae-Ramulus Cinnamomi(HE-RC),single drug HE and RC were analyzed by gas chromatography/mass spectrometry(GC/MS),chemometric resolution method(CRM)and overall volume integration.By means of CRM,the two-dimensional data obtained from GC-MS instruments were resolved into a pure chromatogram and a mass spectrum of each chemical compound.In total,97,62,and 78 volatile chemical components in volatile oil of HE,RC,and DP HE-RC,were respectively determined qualitatively and quantitatively,accounting for 90.08%,91.62%,and 89.76% total contents of volatile oil of HE,RC,and DP HE-RC respectively.It is further demonstrated that the numbers of volatile components of DP HE-RC are almost the sum of those of two single drugs,but some relative contents of them are changed.Some new components,such as 1,6-dimethylhepta-1,3,5-triene,tetracyclo[4.2.1.1(2,5).0(9,10)]deca-3,7-diene,globulol and(E,E)-6,10,14-trimethyl-5,9,13-pentadecatrien-2-one are found in DP HE-RC because of chemical reactions and physical changes during decoction.

Resistance Analysis of Unsymmetrical Trimaran Model with Outboard Sidehulls Configuration

The application of multi-hull ship or trimaran vessel as a mode of transports in both river and sea environments have grown rapidly in recent years.Trimaran vessels are currently of interest for many new high speed ship projects due to the high levels of hydrodynamic efficiency that can be achieved,compared to the mono-hull and catamaran hull forms.The purpose of this study is to identify the possible effects of using an unsymmetrical trimaran ship model with configuration（S/L） 0.1-0.3 and R/L=0.1-0.2.Unsymmetrical trimaran ship model with main dimensions： L=2000mm,B=200 mm and T=45 mm.Experimental methods（towing tank） were performed in the study using speed variations at Froude number 0.1-0.6.The ship model was pulled by an electric motor whose speed could be varied and adjusted.The ship model resistance was measured precisely by using a load cell transducer.The comparison of ship resistance for each configuration with mono-hull was shown on the graph as a function of the total resistance coefficient and Froude number.The test results found that the effective drag reduction could be achieved up to 17% at Fr=0.35 with configuration S/L=0.1.

A comparison of the effects of Kangfuxin liquid and watermelon frost spray for recurrent aphthous stomatitis:A meta-analysis

Through a meta-analysis,we comprehensively evaluated the clinical efficacy and safety of Kangfuxin liquid(KFXL)in patients with recurrent aphthous stomatitis(RAS).Randomized controlled clinical trials(RCTs)involving RAS patients treated with KFXL were systematically retrieved from several online databases from inception to December 2021.All the study selection,data extraction,and quality assessments were performed by two independent investigators using the Cochrane systematic review method.The total effective rate,VAS pain score,recurrence rate,and ulcer healing time were analyzed using Rev Man 5.3 software and Stata 16.0.A total of 17 studies consisting of 1703 patients were included in our investigation.The pooled result indicated that when compared with watermelon frost spray(WFS),KFXL had a significantly superior clinical effectiveness rate(logRR=0.19,95%CI:0.15 to 0.22,P<0.00001).Moreover,the ulcer healing time(MD=–1.63,95%CI=–2.32 to–0.93,P<0.00001),VAS pain score(MD=–1.81,95%CI:–2.65 to–0.97,P=0.00),and recurrence rate(logRR=–0.65,95%CI=–0.89 to 0.42,P<0.00001)of patients with RAS were also significantly improved after receiving the KFXL therapy.Our study revealed that KFXL was a more effective treatment for RAS than WFS,and it could significantly decrease the VAS pain score,recurrence rate,and ulcer healing time in patients.However,our study was limited by the quality of available literature,and further robust trials are needed for a more accurate analysis.

Potassium dehydroandrographolide succinate injection for treatment of infantile pneumonia:a systematic review and Meta-analysis

OBJECTIVE:To evaluate systematically the clinical efficacy and safety of potassium dehydroandrographolide succinate injection(PDS) in treatment of infantile pneumonia.METHODS:Randomized controlled trials(RCTs) of infantile pneumonia treated by PDS were searched in China National Knowledge Infrastructure Database,China Science and Technology Journal Database,Wanfang Database,Chinese Biomedical Literature Database,PubMed,and Cochrane Library,from January 1979 to July 2013.Two reviewers independently retrieved the RCTs and extracted the information.The quality of included studies was assessed by the Cochrane risk of bias,and a Meta-analysis was conducted with Review Manager 5.2 software.RESULTS:A total of 9 studies with 1056 participants were included.The quality of the studies was generally no high,only one study mentioned the random method.The Meta-analysis indicated that PDS was significantly superior to the conventional therapy in the total effective rate[relative risk(RR)=1.21,95%CI(1.14,1.27),P<0.000 01],the time of temperature recovery[mean difference(MD)=-1.43,95%CI(-1.75,-1.11),P<0.000 01],rale disappeared and cough relieving[MD=-1.44,95%CI(-1.93,-0.90),P<0.000 01].Six adverse drug reactions from five studies mainly represented rash and diarrhea,and no serious ADRs were reported.CONCLUSION:Based on this systematic review,PDS was proved effective and relatively safe in treatment of infantile pneumonia.However the articles enrolled in the study were not high in quality,studies with higher quality should be conducted for assessment of efficacy and safety of PDS in treatment of infantile pneumonia.