1.Lipoprotein (a) and homocysteine potentiate the risk of coronary artery disease in male subjects
Meifeng YAN ; Yunfeng XIAO ; Hongwei CUI
Chinese Journal of Postgraduates of Medicine 2013;36(31):1-4
Objective To discuss the rehtionship between lipoprotein [Lp (a)],homocysteine (Hcy) and coronary artery disease (CAD) in men.Methods Two hundred and twenty-two male patients admitted for coronary angiography were classified into CAD positive group (111 cases) and CAD negative group (111 cases).The clinical data and plasma Hcy and Lp(a) levels were recorded in both groups.Logistic regression analysis was used to analyze males CAD risk factors.Results Lp (a) ≥0.3 g/L was a risk factor for CAD (OR =5.04,95% CI 1.88-13.51,P =0.001),whereas Hcy was not related to CAD (OR =1.35,95% CI 0.63-2.89,P =0.443).However,when both factors were considered together in an interaction model,plasma high Hcy and high Lp (a) levels were risk factors for CAD (OR =11.54,95% CI 2.62-45.61,P=0.003).Conclusion Plasma Lp (a) and Hcy levels may increase the incidence of male CAD process.
2.Study on the Improvement Effects of Different Polar Parts of Sanye Chongcha on Model Rats with Ulcer-ative Colitis
Ying ZHANG ; Jie HUANG ; Rong XIAO ; Jing YAN ; Meifeng XIAO ; Lizhang WEN ; Ping WU
China Pharmacy 2016;27(25):3481-3483,3484
OBJECTIVE:To explore the improvement effect of different polar parts of Sanye Chongcha on models rat with ul-cerative colitis(UC). METHODS:The total extract was obtained from Sanye Chongcha by extraction with 80% ethanol,and dis-persed in water,from which the extracts of corresponding parts were obtained after extraction successively with trichloromethane and ethyl acetate and drying. 60 rats were randomized into normal group,model group,positive group(sulfasalazine enteric-coated tablets,312.5 mg/kg),trichloromethane extraction part group(70 mg/kg),ethyl acetate extraction part group(35 mg/kg)and wa-ter extraction part group(320 mg/kg). The rats except for normal group received 2,4,6-trinitrobenzenesulfonic acid solution(TN-BS)to establish UC model. 24 h later,the rats in the drug administration groups were given corresponding drugs ig,while those in normal group and model group were given normal saline ig,once a day,for 14 consecutive days. For the rats,the pathological change of the colon tissue was observed,and the colon mucosa damage index(CMDI)was scored;the activity of superoxide dis-mutase(SOD)and the content of malondialdehyde(MDA)in serum were determined. RESULTS:Compared to normal group,the rats in model group had obvious UC-like lesion,higher CMDI,lower activity of SOD and higher content of MDA in serum(P<0.01). Compared to model group,the rats in the drug administration groups had the lesion which became less serious or improved and had lower CMDI score,among which those of the ethyl acetate extraction part group and the positive group demonstrated a sta-tistically significant difference(P<0.01);and the rats in the drug administration groups except for trichloromethane extraction part group had higher activity of SOD and lower content of MDA in serum,among which the activity of SOD of the ethyl acetate ex-traction part group and the activity of SOD and content of MDA of the positive group demonstrated a statistically significant differ-ence(P<0.05 or P<0.01). CONCLUSIONS:The ethyl acetate extraction part of Sanye Chongcha can reduce colonic lipid peroxi-dation and thus has obvious improvement effect on the rats with UC caused by TNBS.
3.The effects of two different cold compress modes on swelling and pain among patients receiving extraction of impacted tooth of mandibular
Meifeng WANG ; Qiong LUO ; Ying CHEN ; Huimin XIAO
Chinese Journal of Practical Nursing 2018;34(28):2205-2211
Objective To examine the effects of two different cold compress modes (continuous cold compress and intermittent cold compress) on the pain and swelling among patients receiving extraction of impacted tooth of mandibular. Methods From January 2016 to August 2016, 64 cases of adult patients with impacted mandibular impacted wisdom teeth and 24 h in the outpatient department of Oral and Maxillofacial Surgery of Affiliated Stomatological Hospital of Fujian Medical University were selected. They were randomly assigned to the control group and the experimental group (32 cases in each group) by random digital table. The participants in the control group received the usual care plus intermittent cold compress. The participants in the experimental group received the usual care plus continuous cold compress. And the treatment was continued for 24 hours. Outcomes including pain and skin temperature were measured in the intervention cycle, and the swelling was measured at baseline, 6 hour, 12 hours,18 hours, and 24 hours after the intervention. All the participants were asked to have further consultation at 7th days after the operation. Results At 6 hour, 12 hours,18 hours, and 24 hours, the pain of the experimental group was lower than the control group ,and there was significant difference (F=63.665-290.872, P<0.05 ). At 12 hours,18 hours, and 24 hours after the intervention ,number of the swelling grades (0-I-Ⅱ-III) in the control group was 16, 14, 2, 0 cases, 11, 13, 8, 0 cases, 11, 12, 8, 1 cases,number of the swelling grades (0-I-Ⅱ-III) in the experimental group was 27, 5, 0, 0 cases, 26, 6, 0, 0 cases, 26, 6, 0, 0 cases, and there was significant difference (Z=-2.968,-4.017,-4.052, P<0.05). A positive correlation between swelling grade and time (M2=45.22, P<0.05). At 6 hour, 12 hours,18 hours, and 24 hours , the skin temperature of the experimental group was lower than the control group, and there was significant difference (F=1 735.106-23 993.33, P<0.05). Conclusions This study showed that the continuous cold compress was more effective in reducing the pain and swelling among the patients receiving extraction of impacted tooth of mandibular. Compared with the intermittent cold compress, it suggested that continuous cold compress can be integrated into usual care to reduce the pain and swelling among the patients receiving extraction of impacted tooth of mandibular.
4.Theory and Analysis of Pharmacokinetic and Chromatokinetics Dose-time Characterization Methods in Traditional Chinese Medicine
Ru QIAO ; Peng HE ; Qijun HE ; Haiying LI ; Meifeng XIAO ; Kaiwen DENG ; Fuyuan HE
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(22):178-186
ObjectiveTo establish a theoretical system of pharmacokinetic and spectrokinetic dose-time characterization of traditional Chinese medicine(TCM). By analyzing the pharmacokinetic and spectrokinetic behaviors of Lonicerae Flos, Houttuyniae Herba injection, Lonicerae Japonicae Flosand Buyang Huanwutang, this paper compared the similarities and differences of the three methods for characterizing the dose-time relationship, namely half-life, statistical moment and statistics, in order to find the most suitable method for characterizing the relationship. MethodTen mice were randomly selected from 100 Kunming mice as the blank group, and the remaining mice were coated with xylene in the auricle to establish the acute inflammation model of ear swelling. After successful modeling, the mice were gavaged with aqueous extract of Lonicerae Flos(30 g∙kg-1), and the blank group was gavaged with an equal volume of normal saline. The plasma of mice was collected at different time points to determine the content changes of components. At the same time, the pharmacokinetic results of Houttuyniae Herba injection, Lonicerae Japonicae Flos and Buyang Huanwutang were included, and the pharmacokinetic and spectrokinetic parameters were calculated. Then the difference in the time of calculating 95% total component content of metabolism by half-life method, statistical moment method and statistical method was compared. ResultOn the basis of the half-life method, the mathematical expressions of statistical moment method and statistical method suitable for the characterization of dose-time relationship of multi-component system of TCM were established. The results showed that the pharmacokinetic parameters of the individual components in Lonicerae Flos varied, with cryptochlorogenic acid and rutin showing a two-compartment model and the other components showing a one-compartment model. After calculation of spectrokinetic similarity, the metabolic patterns among the components contained in Houttuyniae Herba injection, Lonicerae Japonicae Flos, Lonicerae Flos and Buyang Huanwutang were different and varied greatly in vivo. The time to metabolize 95% of the total components of the four research subjects in vivo was calculated by the half-life method, statistical moment method and statistical method, and it was found that the difference between statistical moment method and half-life method was large, and the difference between statistical moment method and statistical method was small. ConclusionStatistical method not only reflects the characteristics of statistical moment method, characterizes the dispersion degree of each component, but also can be associated with fingerprint to form spectrokinetics, characterizing the dose-time relationship of 95% of drug components, which is a more desirable method to characterize the dose-time relationship of the component groups in TCM.
5.Characteristic Analysis of "Imprinting Template" for Pungent Herbs Based on Molecular Connectivity Index and Matching Frequency Total Statistical Moment
Xuebing QIAN ; Liangqi ZHANG ; Yin XIAO ; Hongxin LIU ; Yuanqing SHEN ; Meifeng XIAO ; Fuyuan HE
Chinese Journal of Experimental Traditional Medical Formulae 2023;29(9):218-224
ObjectiveTo analyze the fingerprint of six pungent herbs based on the molecular connectivity index(MCI)and the matching frequency total statistical moment method, and to study the division and integration of the "imprinting template" of their volatile components, so as to find the common "imprinting template" characteristics of the pungent herbs. MethodThe volatile components of six pungent herbs were extracted by steam distillation, and their fingerprints were established by gas chromatography-mass spectrometry(GC-MS) with a programmed temperature increase(80 ℃ for 5 min, 5 ℃·min-1 to 200 ℃ for 5 min, 2 ℃·min-1 to 230 ℃ for 10 min), a splitting ratio of 20∶1, an electron bombardment ion source(EI) and the detection range of m/z 35-650, and the average MCI and total statistical moment parameters of the fingerprints were calculated. Then the matching frequency method was used to classify, integrate and confirm the chromatographic peaks of the fingerprints of six pungent herbs. ResultThe average zero order, first-order and second-order MCI values of the volatile components of Pogostemonis Herba, Artemisiae Argyi Folium, Atractylodis Rhizoma, Asari Radix et Rhizoma, Magnoliae Flos and Schizonepetae Herba were 9.02, 5.28 and 5.05, respectively. The average values of peak number, total zero-order moment, total first-order moment and total second-order moment were 60, 169×107, 22.49 min and 36.82 min2, respectively. The 20 integrated imprinting templates were obtained by the matching frequency method for the six pungent herbs, among which three were common imprinting templates with the retention times of (25.97±0.21),(26.90±0.20),(31.64±1.24) min, respectively, and the representative components were valencene,β-elemene, caryophyllin, etc. ConclusionMCI combined the matching frequency total statistical moment can divide and integrate the characteristics of imprinting templates of six pungent herbs, and find their common chromatographic imprinting characteristics, which can provide a reference for the determination of effective substances of pungent herbs.
6.Comparative polypharmacokinetics of nine anti-inflammatory components of Jinyinhua (Lonicerae Japonicae Flos) and Shanyinhua (Lonicerae Flos) in mice with p-xylene-induced ear edema
LI Haiying ; XIAO Meifeng ; PAN Xue ; LI Wenjiao ; ZHOU Yiqun ; LIU Wenlong ; HE Fuyuan
Digital Chinese Medicine 2023;6(1):73-85
【Objective】 To reveal the integral in vivo polypharmacokinetics (PPK) similarity or difference between Jinyinhua (Lonicerae Japonicae Flos, LJF) and Shanyinhua (Lonicerae Flos, LF), and provide reference for their clinical application. 【Methods】 The PPK model and its total quantum statistical moment similarity (TQSMS) method were used to compare the integral PPK profiles of nine components with anti-inflammatory efficacy (rutin, caffeic acid, chlorogenic acid, cryptochlorogenic acid, dispsacoside B, macranthoidin B, isochlorogenic acid A, isochlorogenic acid B, and isochlorogenic acid C) of LJF and LF. A total of 54 Specific Pathogen Free (SPF) grade Kunming (KM) mice were randomized into LJF group and LF group (n = 27), and each group was divided into nine subgroups (n = 3) according to different time points. Subsequently, mice model of p-xylene-induced ear edema was constructed by oral administration of LJF and LF. The concentrations of the nine anti-inflammatory components in plasma samples of the mice were determined by ultra-performance liquid chromatography/quadrupole time-of-flight mass spectrometry (UPLC-QTOF-MS/MS). And the pharmacokinetics (PK) parameters of single component and the integral PPK parameters [total quantum statistical moment (TQSM) and TQSMS] of multiple components were calculated by Drug And Statistics (DAS) software and home-brew programs with Excel, respectively. 【Results】 There were significant differences in single-component PK parameters between LJF and LF (P < 0.05). Whereas, no significant differences were found in multi-component TQSM parameters, including total quantum zero moment (AUCT0-t, AUCT0-∞) and total quantum first moment (MRTT0-t, MRTT0-∞) for the total quanta (P > 0.05). Accordingly, single-component TQSMS varied from 0.220 4 to 0.968 9, and that for the total quanta was 0.828 4, suggesting no significant differences in the speed and extent of bioavailability between LJF and LF. Furthermore, in light of high TQSMS (0.828 4), the integral PPK profiles of the nine anti-inflammatory components of LJF and LF were similar under 90% confidence intervals. 【Conclusion】 The PPK model and its TQSMS method are appropriate and efficient to compare the similarity or difference of integral PPK profiles of multi-component herbal medicines. It is suggested in this research that LJF can be replaced with LF or vice versa for anti-inflammatory treatment.