1. Wavelength switching of UPLC fingerprint and chemical pattern recognition of different medical parts of Lonicera japonica
Chinese Traditional and Herbal Drugs 2019;50(18):4449-4454
Objective: To study Lonicerae Japonicae Flos, Lonicerae Japonicae Caulis, and Lonicerae Japonicae Leaves by UPLC method, and study the different parts of Lonicera japonica by the fingerprint similarity evaluation, cluster analysis, principal component analysis, and other chemical pattern recognition technologies, in order to provide scientific basis for the comprehensive utilization of L. japonica. Methods: The method was carried out on an ACQUITY UPLC BEH C18 column (100 mm × 2.1 mm, 1.7 μm) by a gradient elution using acetonitrile and 0.1% phosphoric acid. The flow rate was 0.3 mL/min, The column temperature was 30 ℃. The sample room temperature was 8 ℃. The detection wavelengths were 326, 238, and 250 nm, and the injection volume was 1 μL. Results: The UPLC fingerprint of 28 batches of samples from different parts of Lonicerae Japonicae were set up and 14 common peaks were obtained. They were new chlorogenic acid, chlorogenic acid, cryptochlorogenic acid, caffeic acid, loganin, rutinum, luteoloside, isochlorogenic acid B, isochlorogenic acid A and isochlorogenic acid C. There were some differences in chemical composition and quantity of Lonicerae Japonicae Flos, Lonicerae Japonicae leaves, and Lonicerae Japonicae Caulis. PCA and cluster analysis revealed the similarity and difference of 28 batches of samples from different parts of L. japonica. Conclusion: The combination of clustering analysis and principle component analysis could be used to confirm that the chemical constituents of Lonicerae Japonicae Flos and Lonicerae Japonicae leaves were similar, but there was a difference between Lonicerae Japonicae Flos and Lonicerae Japonicae Caulis. The established fingerprint method can provide a reference for the quality control of Lonicerae Japonicae Flos, Lonicerae Japonicae leaves, and Lonicerae Japonicae Caulis.
2.An overview of effects of traditional medicine on pharmacokinetics of western medicine.
Ya-Qin ZHEN ; De-Zhi KONG ; Lei-Ming REN
Acta Pharmaceutica Sinica 2014;49(2):175-182
Traditional medicine (herb medicine) began to prevail again over last two decades, and it is about 70% of the world population taking herb medicine as supplement or alternative medicine according to a recent survey. The consumption of herb medicine increased exponentially in Canada, Australia and Europe during last 10 years. Since concomitant administration of herbal and western medicine has become a trend, it requires paying close attention to the problem. Herb-drug interactions have been extensively investigated worldwide, and there is an increasing concern about the clinical herb-drug interaction. In this review we introduced the current progress in the herb-drug interactions including evidence-based clinical studies and establishment of levels of evidence for herb-drug interaction; and in the related mechanisms including the induction and inhibition of metabolic enzymes, inhibition and induction of transport and efflux proteins, alteration of gastrointestinal functions, and alteration in renal elimination. We also analyzed both the achievements and the challenges faced in the concomitant administration of traditional Chinese medicine and western medicine.
ATP-Binding Cassette, Sub-Family B, Member 1
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metabolism
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Biological Transport
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drug effects
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Cytochrome P-450 Enzyme System
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metabolism
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Drugs, Chinese Herbal
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isolation & purification
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pharmacokinetics
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pharmacology
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Evidence-Based Medicine
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methods
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Gastrointestinal Tract
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drug effects
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Herb-Drug Interactions
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Humans
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Kidney
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drug effects
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Medicine, Chinese Traditional
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Pharmacokinetics
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Phytotherapy
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Plants, Medicinal
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chemistry
3.Efficacy of a Daltuzumab-containing Regimen in Patients with mSMART High-Risk Multiple Myeloma
Zhen-Lun QI ; Ya-Qin LUO ; Shu-Min DING ; Zhao-Xia LIU
Journal of Experimental Hematology 2024;32(3):774-779
Objective:To investigate the efficacy and safety of a treatment regimen based on daratumumab in patients with high-risk relapsed refractory multiple myeloma(MM)with mSMART 3.0 score.Methods:Clinical data were collected from 16 patients with mSMART3.0 score high-risk relapsed refractory MM treated at the Affiliated Hospital of Shandong University of Traditional Chinese Medicine from May 2020 to May 2023,all of whom received daltezumab-based regimen(regimen drugs including dexamethasone,isazomib,bortezomib,lenalidomide).The efficacy and safety of the treatment were retrospectively analyzed.Results:The median age of 16 patients was 63.5(47-70)years old,including 10 cases of IgG type,2 cases of IgA type,and 4 cases of light chain type.The curative efficacy was judged in all 16 patients,with an overall response rate of 93.75%(15/16),including 4 cases of strict complete remission(sCR),1 case of complete remission(CR),2 case of very good partial remission(VGPR),partial remission(PR)in 5 cases,and minor remission(MR)in 3 cases.The median follow-up time was 11(2-30)months,and the median progression-free survival and median overall survival were not achieved in 16 patients at the median follow-up period.The hematologic adverse effects of the treatment regimen using daratumumab-based were mainly neutropenia,and the non-hematologic adverse effects were mainly infusion-related adverse reactions and infections.Conclusion:Daratumumab-based regimen for the treatment of relapsed refractory MM patients with high risk of mSMART3.0 score has better efficacy and safety.
4.A study on the noninvasive prenatal diagnosis of fetal blood type by maternal blood
Zhen-Yong WANG ; Guo-Song SHEN ; Ping-Ya HE ; Su ZHANG ; Ya-Qin ZHANG
Journal of Preventive Medicine 2016;28(5):473-476
Objective ToexplorethevalueofprenataldiagnosisoffetalABObloodgroupsinthepreventionofABO-HDN,andtoprovideevidenceforpreventionofABO-HDN.Methods Atotalof3777sampleswerecollectedfromthe pregnant women whose ABO blood group is O,and we detected the ABO blood group by serological method to detect the titerofIgGanti-Aandanti-Binthematernalblood.Results Amongthe3777samplescollectedfromthepregnant women whose ABO blood group is O ,the titer of IgG anti-A to anti-B was 1 to1 024 in 27 samples(0.7%),1∶51 2 in 97 samples(2.6%),1∶256 in 1 63 samples(4.3%),1∶1 28 in 285 samples(7.5%)and 1:64 in 603 samples(1 6%). We followed the pregnancy and newborn outcome of 769 case whose antibody titer of 1∶64 or more ,and compared the fetal ABO blood group with results of the titer of IgG anti -A and/or anti -B.A total of 641 patients (83.3%) was corresponding resistance against A or B,and 1 28 patients (1 6.6%)was not corresponding resistance against A or B.The higher the antibody titer,the higher incidence of neonatal ABO hemolytic disease occurred.We extracted the fetal free DNA of peripheral blood plasma in 30 pregnant women, and the genotypes of fetal ABO blood group were detected by the polymerase chain reaction-sequence specific primer (PCR-SSP),and all the experiment presented success.Conclusion ThetiterofIgGanti-Atoanti-Bcouldbeusedtopreventtheoccurrenceofhemolyticdiseaseofnewborn. Considering the interference factors,the fetal free DNA in the maternal circulation could be used to prenatally detect fetal ABO blood groups.
5.Investigation about method of vein blood collection in infants
Jin-Biao ZHANG ; Ya-Li GE ; Zhen-Zhen JING ; Jie LIU ; Rong-Qin DAI
Chinese Journal of Modern Nursing 2011;17(22):2701-2702
Objective To search for a preferred method for vein blood collection in infants which has the following merits: high success rate, high efficiency, and can be accepted easily by parents. Methods 361 infants which received vein blood collection in out-patient were divided into two groups randomly, the experimental group(181 cases) with elbow vein blood collection, the control group(180 cases) with femoral vein puncture. The one-time success rate, average duration and the satisfaction degree of parents were compared between the two groups. Results The one-time success rate in the two groups was different, there was statistically significant difference(X2 = 20.58, P < 0. 05). the same result to average duration (t = 2. 03, P <0. 05) and to the satisfaction degree of parents(X2 =21.66,P<0. 05). Conclusions The method of elbow vein blood collection is a good and feasible way for infant blood collecting, it is worthy of being widely spreaded in the clinic.
6.Evaluating the feasibility of nucleated cells isolated by lysis method for real-time quantitative RT-PCR.
Ling-Di LI ; Ya-Zhen QIN ; Jin-Lan LI ; Yan-Rong LIU
Journal of Experimental Hematology 2011;19(2):477-479
This study was aimed to investigate whether difference exists between real time RT-PCR results of nucleated cells isolated by lysis method and mononuclear cells isolated by gradient concentration method. 14 bone marrow samples from leukemia patients (7 samples of AML-M(2), 1 of AML-M(4), 1 of AML-M(4)EO, 1 of AML-M(6), 1 of APL and 3 of CML) were collected. Each sample was divided into 2 parts, and was used to isolate mononuclear cells by Ficoll-Hypaque gradient centrifugation, and other was used to isolate nuclear cells by lysis method. The RNA extraction and detection of internal reference gene ABL for all of samples were performed by RT-PCR, and mRNA expression levels in 3 samples of BCR/ABL, 6 of AML/ETO, 1 of CBFβ-MHY11, 1 of WT1 and 6 PRAME were detected by RT-PCR. The results showed that ABL copies of all samples were over 3 × 10(4), and there was significant difference in ABL copies between each pair of samples by lysis and gradient centrifugation method (p > 0.05). There was also no significant difference in every detected mRNA levels between 14 pair samples (p > 0.05). It is concluded that the lysis method may be useful one for extracting RNA from nuclear cells, and can adopt as a routing detection method for simultaneously extracting RNA from many samples to detect leukemia specific mRNA by using RT-PCR.
Adolescent
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Adult
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Child
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Female
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Humans
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Leukemia
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genetics
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Male
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Middle Aged
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RNA, Messenger
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analysis
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genetics
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Reverse Transcriptase Polymerase Chain Reaction
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methods
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Young Adult
7.Determination of doxazosin enantiomers in rat plasma and investigation of their chiral inversion.
Ya-Qin ZHEN ; De-Zhi KONG ; Qing LI ; Jing ZHAO ; Lei-Ming REN
Acta Pharmaceutica Sinica 2013;48(6):901-905
The study is to establish an HPLC method using fluorescence detector for the determination of doxazosin enantiomers and investigate their chiral inversion in vitro and in vivo. Ultron ES-OVM was taken as the chiral chromatographic column, and the column temperature was 30 degrees C. Isocratic elution using a mobile phase of phosphate buffer-acetonitrile (85 : 15, v/v) at a flow rate of 0.8 mL x min(-1) was done. The fluorescence detection was set at lambda(Ex) = 255 nm and lambda(Em) = 385 nm. Prazosin was used as the internal standard. (-) Doxazosin or (+) doxazosin added into rat plasma in vitro was determined after incubating in 37 degrees C water bath for 2, 5 and 10 days. (-) Doxazosin or (+) doxazosin was administered orally to the rats for one months. Plasma samples were taken at 8 h after the last administration. A good linear relationship was achieved when the concentration of doxazosin enantiomers was within the range of 4 - 2 000 ng x mL(-1). The average recovery for (-) doxazosin was 99.5% with RSD 3.6%, and for (+) doxazosin was 99.3% with RSD 4.3%. Chiral inversion was observed neither in vitro nor in vivo studies. The method is selective, accurate and reproducible, which is suitable for the detection of doxazosin enantiomers in rat plasma. The in vitro and in vivo studies indicate that chiral inversion occurs uneasily between (-) doxazosin and (+) doxazosin in the rat.
Animals
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Blood Chemical Analysis
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methods
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Doxazosin
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blood
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chemistry
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Male
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Rats
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Rats, Sprague-Dawley
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Reproducibility of Results
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Sensitivity and Specificity
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Stereoisomerism
8.Applicability Study on QAMS for Multi-component Content Determination of Lonicerae Japonicae Caulis
Wei TIAN ; Ya-Qin ZHEN ; Xin-Guo WANG ; Yu-Rou TIAN ; Jun-Shan LI ; Li-Ying NIU
Chinese Journal of Information on Traditional Chinese Medicine 2018;25(11):77-82
Objective To establish a QAMS method for content determination of six compositions (chlorogenic acid, caffeic acid, cryptochlorogenin acid, isochlorogenic acid A, isochlorogenic acid C and loganin) from Lonicerae Japonicae Caulis; To verify the feasibility and applicability of this method in quality control of Lonicerae Japonicae Caulis. Methods Chlorogenic acid was set as internal reference substance. The HPLC analysis was performed on a Waters Symmetry C18 column (4.6 mm × 250 mm, 5 μm) with a mobile phase consisted of acetonitrile and 0.4% phosphoric acid solution in gradient elution manner at a flow rate of 1 mL/min. The column temperature was maintained at 35 ℃, and the detection wavelength was set at 327 nm for chlorogenic acid, caffeic acid, cryptochlorogenin acid, isochlorogenic acid A, isochlorogenic acid C and 236 nm for loganin. Results The relative correction factors of caffeic acid, cryptochlorogenin acid, isochlorogenic acid A, isochlorogenic acid C and loganin were established; there was no obvious difference between calculated value of QAMS and measured value of external standard method. Conclusion The quality control mode of QAMS can be used for multi-index synchronization quality evaluation of the six compositions from Lonicerae Japonicae Caulis.
9.Brucellosis prevalence rate in outpatients of brucellosis in Songyuan city of Jilin province in 2009
Lin, CHANG ; Qing, ZHEN ; Lin, MA ; Yan-fen, CHEN ; Zhong-hai, WANG ; Li-na, GAO ; Ying-jie, SUN ; Ya-qin, YU
Chinese Journal of Endemiology 2010;29(4):440-442
Objective To investigate the prevalence, common clinical symptoms and complications, transmission routes and media of brucellosis among human in the city of Songyuan in Jilin province, and to provide practical basis for brucellosis intervention and related control measures. Methods Use self-designed questionnaire to collect information from outpatients in brucellosis clinic in Songyuan Center for Disease Control and Prevention from January to June 2009, and to analyze the related data from the survey: prevalence, time and geographical distribution, clinical symptom, transmission route and media. Results Of the total 620 cases investigated, there were 284 patients accounting for 45.8% (284/620), 75 suspected patients accounting for 12.1% (75/620), 13stealth patients accounting for 2.1% (13/620) and 248 negative people accounting for 40.0% (248/640). Main common symptoms of the patients were fever[66.5%( 189/284)], muscle and joint pain[38.7%( 110/284)],fatigue[27.5%(78/284)], hyperhidrosis[25.0%(71/284)]and low back pain[17.3%(49/284)]. The patients group had a significantly higher prevalence of mucocutaneous infection, contacting infected animal abortion flow,fur, soil, faeces and dust than the uninfected group(χ2 value were 27.12, 22.75, 8.90, 6.65, 6.39, 6.39, all P< 0.01 or < 0.05). Conclusions The positive rate of brucellosis in the brucellosis clinic of Songyuan city is high,and patients have typical symptoms. We should take comprehensive control measures to protect the high-risk group and reduce the local infectivety.
10.Pregnancy outcome among patients with chronic myelogenous leukemia treated with tyrosine kinase inhibitors.
Qian JIANG ; Bin JIANG ; Shan-shan CHEN ; Hao JIANG ; Ya-zhen QIN ; Yue-yun LAI ; Hong-xia SHI ; Xiao-jun HUANG
Chinese Journal of Hematology 2012;33(1):6-9
OBJECTIVETo observe the pregnancy outcome among patients with chronic myelogenous leukemia (CML) treated with tyrosine kinase inhibitors (TKIs).
METHODSData associated with pregnancy, delivery and neonate from the patients or patient's spouse who conceived while receiving TKIs were collected retrospectively.
RESULTSTwo young female patients (who had been on imatinib therapy for 90 and 91 months, respectively) and spouses of 10 male patients (involving 7 patients who had received imatinib for a median of 60 months and 3 who had received dasatinib for 2.5 months to 7 months, respectively) with median age of 33.5 years (range 26 - 46 years) conceived and gave birth to 12 babies. One woman took imatinib throughout her pregnancy except one month. The other one took imatinib throughout her pregnancy and had breast-fed while on imatinib therapy for nearly half a year postpartum. Among the 12 babies, one was born prematurely with low birth weight and hypospadias (surgical repair after birth), the others were all healthy with no congenital defects. The median age of the children at the date of this report is 17.5 months (range 3 to 101 months), and they all have a normal pattern of growth and development.
CONCLUSIONSConception among patients with CML while receiving TKIs may result in normal pregnancies. The possible effects of TKIs on birth abnormalities cannot be ruled out. It is recommended that childbearing female patients should be advised to practice adequate methods of contraception and should not breast-feed while on TKIs therapy. In cases of accidental pregnancy, risk/benefit evaluations must be carried out carefully on an individual basis. No special precautions apply for male patients being treated with imatinib.
Adult ; Antineoplastic Agents ; therapeutic use ; Benzamides ; Dasatinib ; Female ; Humans ; Imatinib Mesylate ; Infant ; Leukemia, Myelogenous, Chronic, BCR-ABL Positive ; drug therapy ; Male ; Middle Aged ; Piperazines ; therapeutic use ; Pregnancy ; Pregnancy Outcome ; Protein Kinase Inhibitors ; therapeutic use ; Protein-Tyrosine Kinases ; antagonists & inhibitors ; Pyrimidines ; therapeutic use ; Retrospective Studies ; Thiazoles ; therapeutic use ; Treatment Outcome