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ObjectiveTo compare the differences in resistance and structure of skin between acupoints and non-acupoints， and to study the difference in skin permeability characteristics of Corydalis Rhizoma total alkaloid patches （CTTP） after administration at Shenque acupoint and non-acupoint， so as to provide experimental support for its clinical acupoint application to prevent and treat chronic pain. MethodTaking corydaline （CD）， tetrahydropalmatine （THP） and corydalis L （CDL） as evaluation indexes， and the quantitative analysis was carried out by high performance liquid chromatography （HPLC）. The mobile phase was methanol-0.04 mol·L-1 phosphoric acid aqueous solution （70∶30， pH 6.0 adjusted with triethylamine）， the detection wavelength was 281 nm. In vitro transdermal test in Franz diffusion cell and in vivo transdermal test were used to study the skin permeability characteristics of CTTP through Shenque acupoint and non-acupoint administration. At the same time， the skin resistance between Shenque acupoint and non-acupoint was measured before and after the administration， and the distribution of the drug in each layer of the skin was compared by freezing sectioning， and visual verification was performed with fluorescence inverted microscope. ResultAfter 24 h of administration， the results of in vivo and in vitro experiments showed that the cumulative permeation and retention of CD， THP and CDL at Shenque acupoint skin were higher than those at non-acupoint skin （P<0.05， P<0.01）， the skin resistance of Shenque acupoint was lower than that of non-acupoint at all time points. The fluorescence microscopic observation results showed that the drug content of each layer of the skin was all Shenque acupoint>non-acupoint， indicating that the skin of Shenque acupoint had better effect on drug penetration and storage than non-acupoint. ConclusionThe 24 h cumulative permeation and retention of CTTP in Shenque acupoint skin are higher than those in non-acupoint skin， and the mechanism may be related to the thin skin， low electrical resistance and large number of hair follicle bodies at Shenque acupoint.
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ObjectiveTo compare the differences in resistance and structure of skin between acupoints and non-acupoints， and to study the difference in skin permeability characteristics of Corydalis Rhizoma total alkaloid patches （CTTP） after administration at Shenque acupoint and non-acupoint， so as to provide experimental support for its clinical acupoint application to prevent and treat chronic pain. MethodTaking corydaline （CD）， tetrahydropalmatine （THP） and corydalis L （CDL） as evaluation indexes， and the quantitative analysis was carried out by high performance liquid chromatography （HPLC）. The mobile phase was methanol-0.04 mol·L-1 phosphoric acid aqueous solution （70∶30， pH 6.0 adjusted with triethylamine）， the detection wavelength was 281 nm. In vitro transdermal test in Franz diffusion cell and in vivo transdermal test were used to study the skin permeability characteristics of CTTP through Shenque acupoint and non-acupoint administration. At the same time， the skin resistance between Shenque acupoint and non-acupoint was measured before and after the administration， and the distribution of the drug in each layer of the skin was compared by freezing sectioning， and visual verification was performed with fluorescence inverted microscope. ResultAfter 24 h of administration， the results of in vivo and in vitro experiments showed that the cumulative permeation and retention of CD， THP and CDL at Shenque acupoint skin were higher than those at non-acupoint skin （P<0.05， P<0.01）， the skin resistance of Shenque acupoint was lower than that of non-acupoint at all time points. The fluorescence microscopic observation results showed that the drug content of each layer of the skin was all Shenque acupoint>non-acupoint， indicating that the skin of Shenque acupoint had better effect on drug penetration and storage than non-acupoint. ConclusionThe 24 h cumulative permeation and retention of CTTP in Shenque acupoint skin are higher than those in non-acupoint skin， and the mechanism may be related to the thin skin， low electrical resistance and large number of hair follicle bodies at Shenque acupoint.
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Introduction@#<i>Sophora alopecuroides L</i> has broadly been utilized in traditional medicine and all crude drugs including root, herb, and seed are used to treat numerous diseases. This herb is included in 181 Tibetan-Mongolian medicinal prescriptions and ranks 8<sup>th</sup> among Mongolian medicinal plants in terms of frequency of administration. The <i>S.alopecuroidesL . </i> root standard was developed by the Institute of Traditional Medicine and Technology in 2017 and approved by “ҮФӨ-0307-2017”. Herb and seed are still used in medicine. Therefore, their standard parameters need to be determined and verified.@*Materials and methods@#The quantitative pharmacognosy analysis of herb and seed was carried out in accordance with the methodology specified in the “General requirements for medicinal plant raw materials” of the National Pharmacopoeia of Mongolia. To determine the total alkaloid in standard matrine, a bromcresol green complex was formed, which was measured by spectrophotometer.@*Conclusion@#By developing, standards for the crude drugs of herb and seed of <i>S.alopecuroides L. </i> which are included in numerous medicinal prescriptions, will confirm the rationale for the use of medicinal raw materials and to expand the utilization’s possibilities.
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The present study was undertaken to delineate genotype–environment interactions and stability status of 16 genotypes of ashwagandha (Withania somnifera (L.) Dunal) in context to the 12 characters, namely plant height, number of primary branches, number of secondary branches, days to flowering, days to maturity, number of berries, number of seeds/berry, root length, root diameter, root branches, dry root yield and total alkaloid content (%). Experiment was carried out in a randomized complete block design with three replications over three different locations (S. K. Nagar, Jagudan and Bhiloda) in north Gujarat for three years (2016–17, 2017–18 and 2018–19). Pooled analysis of variance revealed that the mean squares due to genotypes and genotype 9 environment interaction along with linear and nonlinear components were highly significant (P\0.01) for most of the traits under study. Stability parameters for component traits through Eberhart and Russell model showed that genotypes that can be used directly in breeding programme are SKA-4 for early flowering, SKA21 for early maturity and SKA-1, SKA-4, SKA-6 and SKA-17 for shorter plant height. Further, SKA-21 could be used for improving number of primary branches per plant, SKA-11 and SKA-17 for number of secondary branches per plant, SKA-19 for number of berries per plant, SKA-6, SKA-21, SKA-27 and AWS-1 for root branches and SKA-17 for root length as these genotypes were found to be most stable across the environments for mentioned traits. The result revealed that some reliable predictions about genotype 9 environment interaction and its unpredictable components were involved significantly in determining the stability of genotypes. Hence, the present investigation can be exploited for the identification of more productive genotypes in specific environments, leading to significant increase in root productivity of ashwagandha
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OBJECTIVE：To investigate the inhibitory effects of total alkaloids of Gelsemium elegans （TAG） on the proliferation and angiogenesis of human colon cancer cells. METHODS ：Human colon cancer cell line HT- 29 and HUVEC were cultured in vitro . After the intervention of low- ，medium-，high-dose TAG （40，80，120 μg/mL），the morphology of the two cells was observed by fluorescence inversion microscope. The survival rate of HT- 29 cells and HUVEC was detected by CCK- 8 assay. Flow cytometry was used to detect HT- 29 cell cycle. The migration rate ，invasion rate and tube number of HUVEC were observed by scratching test ，Transwell invasion experiment and tube formation experiment. RESULTS ：Compared with blank group ，HT-29 cells and HUVEC were decreased to different extents in TAG groups ；dead cells were observed ，and the survival rate of both decreased significantly （P＜0.05 or P＜0.01）. The proportion of HT- 29 cells at G 2/M phase in TAG groups as well as those at G 0/G1 phase in medium-dose group were increased significantly ；the proportion of HT- 29 cells at S phase in TAG groups as well as those at G 0/G1 phase in high-dose group were decreased significantly （P＜0.05 or P＜0.01）. Survival rate ，migration rate and invasion rate of HUVEC were decreased significantly in TAG groups ，and tube number was also decreased significantly at each time point during 4-24 h（P＜0.01）. CONCLUSIONS ：TAG have inhibitory effect on the proliferation of human colon cancer HT- 29 cells and HUVEC，can change HT- 29 cell cycle ，inhibit the migration ，invasion and tube formation of HUVEC.
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Objective: To study the role of dopamine D2 receptor (D2R) on the regulation of prolactin (PRL) secretion by malt total alkaloids. Methods: MMQ and GH3 cells of pituitary adenoma were divided into control group, bromocriptine (5 μg/mL), malt total alkaloids (4.4, 8.8, 35.2, 70.4 μg/mL), haloperidol (10, 20, 40 μg/mL), and combined administration group of total malt alkaloids and haloperidol. Cell viability was detected by CCK-8; The expressions of PRL and D2R were detected by western blotting; The level of PRL was detected by ELISA; The level of PRL and D2R mRNA were detected by qRT-PCR. Results: Compared with control group, malt alkaloids (35.2, 70.4 μg/mL) significantly reduced the expression levels of PRL protein and mRNA, and the level of PRL in the supernatant of MMQ cells (P < 0.05). Malt alkaloids (35.2, 70.4 μg/mL) significantly increased the expression levels of D2R protein and mRNA in MMQ cells. Haloperidol significantly inhibited the downregulation of malt alkaloids on the expression levels of PRL protein and mRNA, and the expression level of PRL in supernatant of MMQ cells (P < 0.05). Haloperidol significantly inhibited the upregulation of malt alkaloids on the levels of D2R protein and mRNA (P < 0.05). The level of PRL in GH3 cells had no change by malt alkaloids. Conclusion: Malt alkaloids could inhibit the expression and secretion of PRL in MMQ cell by upregulating D2R.
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In order to reveal the relationship between the amount of soil microorganisms and the quality of Fritillaria taipaiensis, both cultivated and wild F. taipaiensis were collected from Chongqing, Wuxi at different stages of their growth as objects of the research. The mycorrhizal infection rate and colonization intensity, peimisine and total alkaloid content in bulbs, the amount of microorganisms and biomass carbon content in rhizospheric soil were all determined using common methods. The results showed that the typical arbuscular-vesicle roots were formed after the AM fungi infected the F. taipaiensis roots which were collected from different origins. The mycorrhizal infection rates were ranged from 78.74% to 98.68% and the colonization intensities were ranged from 13.29% to 37.06%. The rhizospheric microorganisms of F. taipaiensis showed abundant resources. The distribution rule of them in the rhizospheric soil was as follows: the amount of bacteria>the amount of actinomycetes>the amount of fungi. The rhizospheric bacteria, decomposition inorganic phosphorus bacteria, decomposition organic phosphorus bacteria, actinomycetes amount and the total number of microbes increased first and then decreased with the increase of years, while decomposition potassium bacteria showed decreasing trend and fungi showed gradual increasing trend. The soil microbial flora content in the soil changed from "bacterial type" with a high fertility to "fungal type" with a low fertility. The mass fraction of peimisine and total alkaloid content increased first and then decreased with the increase of over the years, the same trend of culturable rhizosphere soil bacteria and actinomycetes indicated that the growth years affected the quality of soil and medicinal materials on different levels. Therefore, the diversity of microbial communities in rhizosphere soil reduced with the increase of years leading to the continuous cropping obstacles and the destruction of medicinal quality of F. taipaiensis.
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Alkaloids , Fritillaria , Chemistry , Microbiology , Mycorrhizae , Plant Roots , Rhizosphere , Soil MicrobiologyABSTRACT
OBJECTIVE： To study the effects of Capparis spinosa total alkaloid on Notch pathways related protein Notch2， Delta-like 3 （DLL3）， Jagged1 and Notch intracellular domain 1 （NICD1） in mice with systemic sclerosis （SSc）. METHODS： BALB/c mice were randomly divided into blank control group， model group， positive control group （penicillamine 125 mg/kg）， C. spinosa total alkaloid low-dose， medium-dose and high-dose groups （225， 450， 900 mg/kg）， with 16 mice in each group. Except for blank control group， other groups were given bleomycin subcutaneously for 4 weeks to induce SSc model. C. spinosa total alkaloid groups were given relevant dose of C. spinosa total alkaloid cream for external use. Positive control group was given relevant dose of penicillamine intragastrically. Blank control group and model groups were given cream matrix without drug， once a day， for consecutive 8 weeks. 4 h after last administration， the skin of the administration area of each group of mice was collected. mRNA expression of Notch2 and NICD1 was detected by real-time PCR； the content of DLL3 was measured by ELISA； the protein expression of Jagged1 in skin tissue was detected by immunohistochemstry. RESULTS： Compared with blank control group， mRNA expression of Notch2 and NICD1， DLL3 content， protein expression of Jagged1 were markedly increased， with statistical significance （P＜0.01）. Compared with model group， mRNA expression of NICD1， DLL3 content and protein expression of Jagged1 were decreased significantly in C. spinosa total alkaloid medium-dose and high-dose groups， positive control group， mRNA expression of Notch2 in skin tissue were decreased significantly in C. spinosa total alkaloid high-dose group and positive control group， with statistical significance （P＜0.05 or P＜0.01）. CONCLUSIONS： C. spinosa total alkaloid can inhibit the abnormal expression of Notch2， NICD1， DLL3 and Jagged1 in skin tissue of SSc model mice， and inhibit over activation of Notch pathway in SSc model mice.
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OBJECTIVE： To optimize the ethanol extraction technology of total alkaloids from Shuanghu capsules. METHODS： Using dendrobine as control， the contents of total alkaloids from Dendrobium nobile and Dendrobium officinale in Shuanghu capsules were determined by acidic dyes colorimetry. Using comprehensive scores calculated by the yield of the extract and the contents of total alkaloids as evaluation indexes， the effects of soaking time， ethanol volume fraction， extraction time， solid-liquid ratio and extraction times were investigated with single factor tests. L9（34） orthogonal test was used to optimize ethanol volume fraction， extraction time， solid-liquid ratio and extraction times according to the results of single factor test. The optimized technology was validated. RESULTS： The linear range of dendrobine were 4.16-14.56 μg/mL （r＝0.999 2）. RSDs of repeatability and precision tests were all lower than 5％. Average recovery tests were 93.01％ （RSD＝1.97％， n＝6）. The optimal ethanol extraction technology included soaking for 12 h， ethanol volume fraction of 70％， solid-liquid ratio of 1 ∶ 12 （g/mL）， extracting for 28 min， extracting 3 times. Results of validation test showed that the average yield of extract was 12.80％ （RSD＝4.39％， n＝3）， and the content of alkaloids was 0.359 0 mg/g（RSD＝0.66％， n＝3）. CONCLUSIONS： Established acidic dyes colorimetry is simple， precise and accurate， which can be used for the content determination of total alkaloids. The optimized ethanol extraction technology is stable and feasible， and can be used for the extraction of total alkaloids from Shuanghu capsules.
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Objective To evaluate the effects of capparis spinosa total alkaloid on transforming growth factor-β( TGF-β)/Smad4 signalling pathways in systemic sclerosis (SSc). Methods A total of 90 BALB/c mice were randomly divided into normal control group, model control group, penicillamine ( 125 mg·kg-1) group and Capparis spinosa total alkaloid low (225 mg·kg-1),medium (450 mg·kg-1) and high ( 900 mg·kg-1) dose group. Except for the normal control group,SSc mouse model was established by daily subcutaneous injection of bleomycin in the back of the mice.After the establishment of the model,Capparis spinosa total alkaloid emulsifiable paste was externally applied to Capparis spinosa total alkaloid group,ground substance was externally applied to the mice in normal control group and model control groups, and penicillamine was intragastrically administrated in the penicillamine group for 60 days,once daily.After the treatment,The expression of TGF-β1in skin tissue was detected by Western-blotting and the levels of actin / in receptor-like kinase / Smad4, nuclear factor-κB in skin tissue were measured by ELISA. Results The expression of TGF-β1was significantly decreased after administration of 225,450 and 900 mg·kg-1capparis spinosa total alkaloid, and the levels of ALK1 and Smad4 were significantly decreased after administration of 900 mg·kg-1capparis spinosa total alkaloid as compared with model control group (P<0.05 or P<0.01),but the content of NF-κB was not influenced (P>0.05). Conclusion Capparis spinosa total alkaloid can accommodate abnormal expression of TGF-β1/Smad4 signalling pathways in SSc.
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Objective To observe the effects of Capparis spinosa total alkaloid on vascular endothelial growth factor (VEGF),endothelin-1(ET-1) and soluble vascular cell adhesion molecule-1 (sVCAM-1) levels in systemic sclerosis (SSc) mouse model and explore the therapeutic mechanism of Capparis spinosa total alkaloid for the treatment of SSc. Methods A total of 90 BALB/c mice were randomly divided into blank control group,model control group,penicillamine (125 mg·kg-1) group and Capparis spinosa total alkaloid low(225 mg·kg-1),medium(450 mg·kg-1) and high(900 mg·kg-1) dose group. Except for the blank control group,SSc mouse model was established by daily subcutaneous injection of bleomycin in the back of the mice.After establishing model successfully,Capparis spinosa total alkaloid emulsifiable paste was externally applied with Capparis spinosa total alkaloid group,ground substance was externally applied to the mice in blank control group and model control groups,penicillamine was intragastrically administrated in the penicillamine group for 60 days,once daily.After the treatment,the content of VEGF in skin tissue and ET-1,sVCAM-1 in serum were measured by ELISA. Results The levels of VEGF and ET-1 were significantly decreased in Capparis spinosa total alkaloid high dose group as compared with model control group(P<0.05, P<0.01),but the content of sVCAM-1 wasn't influenced(P>0.05). Conclusion Capparis spinosa total alkaloid is effective in adjusting abnormal expression of VEGF and ET-1 in SSc mice.
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Objective To study the analgesic and anti-inflammatory effects in vivo of the total alkaloids in Stephania kwangsiensis (TARS).Methods Mice were respectively ig with high,middle,and low doses of TARS.The analgesic effects of TARS were evaluated by the formaldehyde induced pain method and tail-immersion response induced by hot water in mice,and anti-inflammatory effects were observed by cotton ball granuloma,egg white induced paw swelling method in mice.Results TARS could significantly inhibit formaldehyde induced pain in mice,reduce the hind licking times,extend tail withdrawal time induced by hot water,obviously reduced the formation of granulomatous in mice;Inhibited egg white induced paw swelling.Conclusion TARS has significant analgesic and anti-inflammatory effect.
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OBJECTIVE:To study the new formula of effective components in TCM for anti-allergic rhinitis (AR),and pro-vide reference for developing TCM preparations for anti-AR. METHODS:Using pseudoephedrine hydrochloride (0-13.5 mg/kg), total alkaloid extracts of Aconitum carmichaelii (0-21.18 mg/kg),volatile oil of asari radix (0-0.0092 mL/kg) in Mahuang Fuzi Xixin decoction as formula objects,uniform design method was used for drug grouping,and multiple regression analysis was con-ducted for the behavioral scores before and after administration,contents of histamine and immunoglobulin E (IgE) in serum of AR guinea pigs to obtain the best formula. Using Xinqin granule,Loratadine tablet,Mahuang Fuzi Xixin decoction respectively as positive control,efficacy of the best formula was verified from aspects of behavioral scores before and after administration,con-tents of histamine and IgE of AR guinea pigs. And the safety of the best formula was preliminarily observed through acute toxicity test in mice. RESULTS:The best formula was as follow as pseudoephedrine hydrochloride 11.25 mg/kg,total alkaloid extracts of A. carmichaelii 21.18 mg/kg,volatile oil of asari radix 0.0045 mL/kg. Compared with each positive drug group,there were no sig-nificant differences in behavioral scores before and after administration in the best formula group(P>0.05). While compared with Xinqin granule group and Mahuang Fuzi Xixin decoction group,histamine content in serum in the best formula group was signifi-cantly reduced (P<0.05);compared with Xinqin granule and Loratadine tablet group,IgE content in serum in the best formula group was significant decreased (P<0.05). Median lethal dose of the best formula was 1822.04 mg/kg. CONCLUSIONS:The screened best formula shows better effect than Xinqin granule and Mahuang Fuzi Xixin decoction in terms of reducing histamine content in serum,better than Loratadine tablet and Xinqin granule in terms of reducing IgE content in serum,with good safety, which indicates the feasibility of TCM effective component formula to a certain degree.
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Objective: To observe the relieving cough and reducing sputum effects of total alkaloid in Atalantia buxifolia and evaluate the safety preliminarily.Methods: The relieving cough and reducing sputum effects of total alkaloid in Atalantia buxifolia were studied by the cough model caused by the irritation of ammonia water and the phenol red output of trachea in mice.The acute toxicity test and maximum tolerance test were carried out to evaluate the safety.Results: The total alkaloid in Atalantia buxifolia at low dose could obviously prolong cough incubation period and decrease cough times in mice, and that at high dose could significantly increase the secretion of phenol red in respiratory tract, and compared with those in the blank group, the differences were statistically significant (P0.05).Conclusion: The relieving cough and reducing sputum effects of total alkaloid in Atalantia buxifolia are notable in the cough model caused by the irritation of ammonia water and the phenol red output of trachea in mice.The maximum tolerable dose test shows the total alkaloid in Atalantia buxifolia is safe.
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Objective To determine the qualitities Papaver nudicaule from different populations, a total alkaloid and three main kinds of alkaloids (reframidine, nudicauline, and amurensinine) from different parts, in order to provide a scientific basis for rational utilization and quality evaluation of P. nudicaule. Methods The qualitative and quantitative analysis of P. nudicaule has been conducted based on the method of LCMS-IT-TOF, Bromocresol green acid dye colorimetry and UPLC-MS, respectively. Results From the quantitative analysis, 13 kinds of alkaloids have been analyzed, in which eight kinds of chemical structures have been identified, and the results of quantitative analysis showed that there were greater variabilities in total alkaloid and three main kinds of alkaloids. Comprehensively, the plants grown in WLBT, HGL, and DL were better than other populations, in which the plants grown in WLBT were the best. In addition, the contents of total alkaloid and three main kinds of alkaloids were highly existed in the entire plants and flowers. Conclusion Based on the evaluation of the quality characteristics of P. nudicaule, it is suggested that total alkaloid and nudicauline can be seen as main reference indexes. Additionally, the result suggests that WLBT, HGL, and DL can be chosen to select and breed excellent quality of P. nudicaule, develop the quality standard and make layout of source area. The best harvest time should be chosen in late July to early August, and harvest site should be chosen flowers and whole plants.
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Objective To evaluate the cytotoxic activity of wood extracts of Lunasia amara Blanco (L. amara) and to perform further phytochemical standardization. Methods The wood extracts of L. amara were assessed for cytotoxic activity by in vitro tetrazolium bromide (MTT) method against two human cancer cell lines, cervical cancer cells (HeLa) and breast cancer cells (T47D). Thin layer chromatography, Dragendorf, acetic anhydride-sulfuric acid and ferric chloride were used to detect alkaloids, steroids and polyphenols, respectively. Furthermore, quantitative determination of total alkaloid by ultra fast liquid chromatography-photodiode array detection using lunacrine as a marker compound was performed as well. Results The ethyl acetate extract exhibited higher cell-growth inhibition than methanol and n-hexane extracts on HeLa and T47D cancer line cells with the IC
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Objective To investigate the effects of capparis spinosa total alkaloid on type collagen (ColⅣ - ),Ⅳmatrix metalloproteinase-9 (MMP-9), tissue inhibitor of metalloproteinase-1 (TIMP-1) and plasminogen activator inhibitor-1 (PAI-1) in bleomycin-induced systemic sclerosis (SSc) mice; To explore the effective mechanism of capparis spinosa total alkaloid on fibrosis of SSc. Methods Totally 90 BALB/c mice were randomly divided into control group, model group, penicillamine group and capparis spinosa total alkaloid low-, medium- and high-dose group. Mice models with SSc were established by repeated local injections of bleomycin in mice back, except for the control group. Mice in medication groups received external application with capparis spinosa total alkaloid cream;mice in penicillamine group were given penicillamine for gavage; mice in the control and model group received external application without substance, one time a day, for 60 days. The contents of MMP-9, TIMP-1 and PAI-1 in serum and Col- in skin tissue were dⅣ etected respectively by ELISA after the last medication. Results Compared with the model group, the levels of MMP-9 and ratio of MMP-9/TIMP-1 markedly increased and the levels of Col-Ⅳand TIMP-1 markedly decreased in medium and high- dose of capparis spinosa total alkaloid group (P0.05). Conclusion Capparis spinosa total alkaloid is effective in treating fibrosis of SSc by adjusting imbalance of MMP-9/TIMP-1 and decreasing expression of Col-Ⅳ.
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Objective To investigate the effects of capparis spinosa total alkaloid on the pathological changes and the type Ⅲ collagen(COL?Ⅲ)expression in systemic sclerosis(SSc)mice. Methods Mice models with SSc were established by repeated local injection of bleomycin in BALB/c mice back. After administration of capparis spinosa total alkaloid ,the pathological changes of skin and lung tissue were observed ,and the COL?Ⅲ expression was detected by ELISA. Results Compared with the model group,the inflammation and fibrosis of skin and lung tissue were improved,and the level of COL?Ⅲ was markedly reduced by treatment of high dose capparis spinosa total alkaloid(P<0.05). Conclusion Cap?paris spinosa total alkaloid is effective in treating fibrosis of SSc.
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Objective: To evaluate the cytotoxic activity of wood extracts of Lunasia amara Blanco (L. amara) and to perform further phytochemical standardization. Methods: The wood extracts of L. amara were assessed for cytotoxic activity by in vitro tetrazolium bromide (MTT) method against two human cancer cell lines, cervical cancer cells (HeLa) and breast cancer cells (T47D). Thin layer chromatography, Dragendorf, acetic anhydride-sulfuric acid and ferric chloride were used to detect alkaloids, steroids and polyphenols, respectively. Furthermore, quantitative determination of total alkaloid by ultra fast liquid chromatography-photodiode array detection using lunacrine as a marker compound was performed as well. Results: The ethyl acetate extract exhibited higher cell-growth inhibition than methanol and n-hexane extracts on HeLa and T47D cancer line cells with the IC50 of 71.15 and 79.04 mg/mL, respectively. Total alkaloid in ethyl acetate extract was counted as (10.46 ± 0.28)%(w/w), while lunacrine determined by ultra fast liquid chromatography-photodiode array detection method was found to be (3.55 ± 0.26)%(w/w). Conclusions: The high total alkaloid and lunacrine concentration on the extract confirm the potential cytotoxic property of ethyl acetate wood extract of L. amara.
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Objective: To study the combination and proportion for the explants in NaClO and the suitable hormone induced by callus of Fritillaria ebeiensis var. purpurea. The total alkaloids content variations of raw herb and callus were investigated. Methods: The fresh bulbs of F. ebeiensis var. purpurea were used as the exprimental materials and NaClO and antibiotics as disinfectants. It was cultured in vitro in MS medium with plant hormones 2,4-D + 6-BA and 2,4-D + KT by orthogonal test design. Alkaloids contents in original bulb and callus were measured with UV. Results: The best way to sterilization was at a concentration of 5% NaClO with 8 min. The optimal hormone levels was 2,4-D 0.5 mg/L + 6-BA 2.0 mg/L. The alkaloid contents of raw herbs and callus were 1.46% and 1.09%. Conclusion: Callus induced by tissue culture technique are soft, luster, and transparent, which are suitable for subculture. Total alkaloids content in callus is less than that in raw herb.