1.Argument on the correct Chinese name of genus Kadsura Kaempf.ex Juss.
Peigen XIAO ; Lijia XU ; Wei XIAO ; Yong PENG
Acta Pharmaceutica Sinica 2010;45(8):1064-6
Family Schisandraceae is composed of two genera Schisandra and Kadsura, which are quite different in regard to the used part and medical function. Traditionally, the fruits of Schisandra plants were called 'Wuweizi' used as tonic for neurasthenia, antitussive, and sedative agents. The stems and roots of Kadsura plants, with names related to 'XueTeng', possess activating blood circulation and eliminating stasis and are used for the treatment of rheumatism, fractures and irregular menstruation. The dried fruit of Schisandra chinensis was recorded in Chinese Pharmacopoeia (2010 Edition) as 'Wuweizi', while the dried fruit of S. sphenanthera was recorded as an official origin of 'Nanwuweizi'. Historically, there was no evidence that the fruits of Kadsura plants were substituted as 'Wuweizi' either in ancient literatures or contemporary marketing. However, genus Kadsura is still popularly called 'Nanwuweizi' and plant K. longipedunculata is regarded as the origin of 'Nanwuweizi', thus this will cause confusion as well as misunderstanding of genus Kadsura. The authors recommended, therefore, the Chinese name of genus Kadsura should be 'Lengfantengshu' and K. longipedunculata with the name of 'Lengfanteng' in order to guarantee the drug authenticity.
2.Effective components against HIV-1 replicative enzymes isolated from plants.
Zonggen PENG ; Lijia XU ; Wencai YE ; Peigen XIAO ; Hongshan CHEN
Acta Pharmaceutica Sinica 2010;45(2):235-40
Plant active components characterized of many different structures and activities on multiple targets, have made them to be the important sources of inhibitors on HIV-1. For finding leading compounds with new structure against HIV-1, three key HIV-1 replicative enzymes (reverse transcriptase, protease and integrase) were used as screening models. The in vitro activities of 45 plant derived components isolated from Schisandraceae, Rutaceae and Ranunculaceae were reported. Within twelve triterpene components isolated, eight compounds were found to inhibit HIV-1 protease, in these eight active compounds, kadsuranic acid A (7) and nigranoic acid (8), inhibited both HIV-1 protease and integrase; Among fifteen lignans, meso-dihydroguaiaretic acid (15) and kadsurarin (16) were active on HIV-1 reverse transcriptase, and 4, 4-di(4-hydroxy-3-methoxyphenly)-2, 3-dimethylbutanol (13) active on HIV-1 integrase. All of the six alkaloids, seven flavones, and five others compounds were not active or only with low activities against HIV-1 replicative enzymes. Further studies of the triterpene components showing strong inhibitory activities on HIV-1 were warranted.
3.Chemical Constituents in Tibetan Medicine Dolomiaea Souliei (Franch.) Shih
Hua WEI ; Lingling LIU ; Lijia XU ; Yong PENG ; Peigen XIAO
China Pharmacist 2017;20(5):785-787
Objective: To study the chemical constituents in the dry roots of Dolomiaea souliei (Franch.) Shih.Methods: Various chromatographic methods were used to isolate and purify the chemical constituents of Dolomiaea souliei, and the structures were elucidated through the analysis of spectral data and literatures.Results: Six compounds including 3 sesquiterpene compounds and 3 fatty acids were obtained and identified as dihydrodehydrocostuslactone(Ⅰ), vladimenal(Ⅱ), arbusculin A(Ⅲ), n-hendecane(Ⅳ), butanedioic acid(Ⅴ) and methyl linoleate(Ⅵ).Conclusion: Compounds Ⅳ-Ⅵ are obtained from the genus of Dolomiaea for the first time.
4.Treatment of acute tubular necrosis by autologous bone marrow stem cells transplantation through renal artery in the rabbits
Lijia XIAO ; Yueming YU ; Xinghua PAN ; Liying CAO ; Yongqin YANG
Chinese Journal of Pathophysiology 1986;0(03):-
AIM: To observe the effects and location of autologous bone marrow stem cells(BMSCs) transplanted through renal artery into ischemic-reperfusion(I/R) injured kidney.METHODS: BMSCs were collected from rabbits after isolated and then labeled with 5-bromo-2-deoxyuridine(BrdU).Twenty-eight rabbits were subjected to clamping renal pedicles for 105 min and divided into the transplantation group and control group randomly.BrdU labeled BMSCs or saline were injected into the kidney by renal artery,respectively.Before and after I/R at the 1st,3rd, 5th,7th,14th,21th and 28th d,the venous blood was collected to measure serum Cr and BUN.In the same time,renal tissue was collected for pathological and immunohistochemical study.RESULTS: After I/R,serum Cr and BUN levels in the rabbits in two groups became higher,and on the 1st and 3rd d after I/R,reached the highest level.On the 7th d the serum Cr and BUN levels in transplantation group were lower than those in control group.On the 28th d the levels of serum Cr(90.1?11.1) ?mol/L and BUN(8.0?1.5) mmol/L in transplantation group were significantly lower than those in control group(135.6?32.5) ?mol/L and(10.9?2.5) mmol/L,respectively(P
5.New Collection of Crude Drugs in Chinese Pharmacopoeia 2010 Ⅲ.Kadsurae Caulis
Lijia XU ; Pei MA ; Li LI ; Wanying WANG ; Wei XIAO ; Yong PENG ; Peigen XIAO
Chinese Herbal Medicines 2012;04(3):177-182
The dried cane of Kadsura interior (Kadsurae Caulis) is recorded in Chinese Pharmacopoeia 2010 as Dian Jixueteng for the treatment of rheumatism,irregular menstruation,and deficiency of Qi and blood.In this paper,morphological characteristics,chemical constituents,and pharmacological activities in the cane of K.interior were summarized.Moreover,some suggestions about application and quality control of Kadsurae Caulis were proposed in order to provide a theoretical basis for further scientific use.
6.Comparative Studies on Antioxidant Activities of Green Tea and Four Tree-type Non-Camellia Teas
Wanying WANG ; Wei XIAO ; Lijia XU ; Yong PENG ; Chunnian HE ; Peigen XIAO
World Science and Technology-Modernization of Traditional Chinese Medicine 2013;(7):1526-1531
This article was aimed to compare the antioxidant activities of Green tea and four tree-type non-Camellia teas. The antioxidant activities of the water extract of Green tea, Eagle tea, Large-leaved Kuding tea, Shiya tea and Qingqianliu tea were evaluated with four different in vitro assays including 1,1-diphenyl-2-picryl-hydrazyl (DPPH), ferric-reducing antioxidant power (FRAP), ferrous ion-chelating (FIC) and β-carotene-linoleate bleaching assay. In addition, the polyphenol contents of different teas were estimated by the Folin-Ciocalteu assay. The results showed that Shiya tea had strong antioxidant activity; its FIC and FRAP abilities are better compared with Green tea. The Eagle tea and Large-leaved Kuding tea have better antioxidant activity. The FRAP activity of Large-leaved Kuding tea was better than green tea. The DPPH of Eagle tea and Large-leaved Kuding tea were slightly lower than Green tea, but higher than the butylated hydroxytoluene (BHT). The antioxidant ability of Qingqianliu tea was the lowest. It was concluded that Shiya tea, Eagle tea, Large-leaved Kuding tea had relatively high development value which re-quires in-depth research and promotion.
7.Research Progress in Cymbopogon citratus (DC.) Stapf and Lemongrass Tea
Jiamei XIANG ; Xilong ZHENG ; Jianhe WEI ; Wei XIAO ; Lijia XU ; Peigen XIAO
World Science and Technology-Modernization of Traditional Chinese Medicine 2017;19(5):874-879
C.citratus has been usedin many countries with a long history.Traditionally,it is applied as a food seasoning in cooking.It is also used in tea beverage and folk medicine as well.Modern application of C.citratus is focused on the development of citronella oil,which can be used for food additives,disinfectants,cosmetics,drugs and etc.C.citratus is also a potential plant in landscaping.Its special lemony flavor contains chemical constituents,mainly including citral,myrcene,linalool,geraniol,nerol,citronellol,and etc.The modern research showed that C.citratus had the main effects of anti-microbial,anti-inflammation,analgesia,anti-oxidation,anti-tumor,anti-anxiety,anti-hypertension,antihyperglycemia,and etc.With further studies,some new pharmacological properties of C.citrates are going to be discovered gradually.It is worthy of further research and development to meet the needs of the health industry.
8.Changes and significance of B cell specific monoclonal murine leukemia virus integration site -1 and helper T cell-related cytokine in children with immune thrombocytopenia
Peiling LI ; Taixin SHI ; Lijia CAO ; Dongju ZHAO ; Jun GAO ; Aiju XIAO ; Yunjiao TIAN ; Yanhua WANG
Chinese Journal of Applied Clinical Pediatrics 2016;(3):206-208
Objective To analyze the functional changes and the clinical significance of B cell specific mono-clonal murine leukemia virus integration site -1 (Bmi -1 )and Th1 /Th2 cells in children with newly diagnosed im-mune thrombocytopenia(ITP)by testing the mRNA expressions of Bmi -1,helper T cell -related cytokine interferon (IFN)-γand interleukin(IL)-4 in children with newly diagnosed ITP.Methods Thirty -six cases of patients with newly diagnosed ITP in the experimental group came from the inpatient and outpatient children admitted to the Depart-ment of Pediatrics of the First Affiliated Hospital of Xinxiang Medical University from April to December 201 3.In the control group,26 cases of children requiring selective operation were admitted to the Department of Pediatric Surgery during the same period.The mRNA expressions of Bmi -1,IFN -γand IL -4 in the peripheral blood lymphocytes were detected by means of the reverse transcription -polymerase chain reaction(RT -PCR)method,and were analyzed and compared by t test and linear correlation analysis.Results (1 )The mRNA expressions of Bmi -1,IFN -γand IL -4 in peripheral blood lymphocytes in the experimental group were 2.63 ±0.54,3.84 ±0.43 and 1 .44 ±0.39,respec-tively;while the mRNA expressions of Bmi -1,IFN -γand IL -4 in the peripheral blood lymphocytes in the control group were 3.91 ±0.92,2.88 ±0.57 and 1 .87 ±0.34,respectively.The levels of IFN -γof the experimental group were significantly higher than those of the control group (P <0.001 )and the levels of Bmi -1 and IL -4 in the experi-mental group were significantly lower than those in the control group (all P <0.001 ).(2)The mRNA expressions be-tween IFN -γand IL -4 in the peripheral blood lymphocytes in the experimental group were in negative correlation (r =-0.667,P <0.001 ).The mRNA expressions between IL -4 and Bmi -1 in the same group were in a positive correlation (r =0.776,P <0.001 ).There were no correlation in the mRNA expressions between IFN -γand Bmi -1 (r =-0.206,P >0.05).Conclusions Bmi -1 may be involved in the pathogenesis of ITP by regulating Th cell, and Th cell dysfunction may occur in the children with ITP,and the disproportion between Th1 and Th2 may be due to the advantages of Th1 .
9.Expression of DNA methyltransferase mRNA in children with immune thrombocytopenia
Aiju XIAO ; Tuanjie WANG ; Lijia CAO ; Taixin SHI ; Dongju ZHAO ; Peiling LI ; Ruijuan REN
Journal of Clinical Pediatrics 2015;(2):147-150
Objective To study the relationship between DNA methylation and pathogenesis of childhood immune thrombocytopenic purpura (ITP) by examining the expression of DNA methyltransferase 1(Dnmt1) and DNA methyltransferase 3a (Dnmt3a) mRNA in peripheral blood lymphocytes of the children with ITP. Methods Expression of Dnmt 1 and Dnmt3a mRNA in the peripheral blood lymphocytes in 36 children with newly diagnosed ITP and 26 healthy children were detected using RT-PCR. Results Dnmt1 mRNA expression in peripheral blood lymphocytes in children diagnosed with ITP was 3.02±0.49, significantly lower than 4.58±0.52 in the control group (t=11.95, P<0.001). Dnmt3a mRNA expression in peripheral blood lymphocytes in children diagnosed with ITP was 1.49±0.44, signiifcantly lower than 2.41±0.32 in the control group (t=9.12, P<0.001). Conclusions Children with newly diagnosed ITP have lower DNA methylation status in peripheral blood lymphocytes as compared to that in healthy children. The DNA methylation may play an important role in the etiology of acute ITP in children.
10.Expression of DNA methyltransferase mRNA in children with persistent and chronic immune thrombocytopenia
Rui FAN ; Aiju XIAO ; Lijia CAO ; Taixin SHI ; Dongju ZHAO ; Peiling LI ; Ruijuan REN
Chinese Journal of Applied Clinical Pediatrics 2016;31(7):531-534
Objective To discuss DNA methylation's effect on pathogenesis of pediatric immune thrombocytopenia (ITP)through detecting the expression level of DNA methyltransferases (DNMTs)mRNA in peripheral blood lymphocytes of children with ITP.Methods Two mL peripheral blood was collected from each of 25 children with persistent and chronic ITP and 20 healthy children (the healthy control group)by using aseptic method in the pediatric ward of the First Affiliated Hospital of Xinxiang Medical University from January 2014 to January 2015.First ethylene diamine tetraacetic acid (EDTA) was used as the anticoagulant.Then separate the mononuclear cells,extract RNA and detect expression levels of DNMT1,DNMT3A and DNMT3B mRNA using reverse transcription-polymerase chain reaction (RT-PCR) method.Results (1) The blood platelet (PLT) of children with persistent and chronic ITP was (36.2 ± 19.6) × 109/L,which was obviously lower than the healthy control group(168.8 ±46.8) × 109/L(t =-11.85,P =0.000).(2)The DNMT1 mRNA expression level of children with persistent and chronic ITP was 0.17 ± 0.05,which was obviously lower than the healthy control group (0.27 ± 0.10) (t =-3.912,P =0.001).The DNMT3A mRNA expression level of children with persistent and chronic ITP was 0.20 ± 0.10,which was obviously lower than the healthy control group (0.32 ±0.11) (t =-3.779,P =0.000).The DNMT3B mRNA expression level of children with persistent and chronic ITP was 0.16 ± 0.1 1,which was obviously lower than the healthy control group (0.31 ±0.11) (t =-4.641,P =0.000).(3) There was positive correlation between the expression of DNMT1 and DNMT3B mRNA(r =0.433,P =0.031).There was positive correlation between the expression of DNMT3A and DNMT3B mRNA(r =0.721,P =0.000).Conclusions (1) Children with persistent and chronic ITP have lower expression levels of DNMT1,DNMT3A,DNMT3 B mRNA,which indicates that DNA methylation contributes to the pathogenesis of pediatric persistent and chronic ITP.(2) DNMTs have synergistic effect on DNA methylation of pediatric persistent and chronic ITP.