The aim of the study was to prepare berberine hydrochloride long-circulating liposomes and optimize the formulation and process parameters,and investigate the influence of different factors on the encapsulation effici...The aim of the study was to prepare berberine hydrochloride long-circulating liposomes and optimize the formulation and process parameters,and investigate the influence of different factors on the encapsulation efficiency.Berberine hydrochloride liposomes were prepared in response to a transmembrane ion gradient that was established by ionophore A23187.Free and liposomal drug were separated by cation exchange resin,and then the amount of intraliposomal berberine hydrochloride was determined by UV spectrophotometry.The optimized encapsulation efficiency of berberine hydrochloride liposomes was 94.3%2.1%when the drug-to-lipid ratio was 1:20,and the mean diameter was 146.9 nm3.2 nm.As a result,the ionophore A23187-mediated ZnSO_(4)gradient method was suitable for the preparation of berberine hydrochloride liposomes that we could get the desired encapsulation efficiency and drug loading.展开更多
The paper was to establish a simple and sensitive HPLC method for determination of berbefine hydrochloride content in Qingwen Baidu granule. The HPLC system consisted of Stable Bond - C18 column (4.6 × 150 mm, ...The paper was to establish a simple and sensitive HPLC method for determination of berbefine hydrochloride content in Qingwen Baidu granule. The HPLC system consisted of Stable Bond - C18 column (4.6 × 150 mm, 5um) and with a mobile phase of acetonitrile -0.05mol/L potassium dihydrogen phosphate solution (50:50,v:v) mixture. Berberine hydrochloride was detected at the wavelength of 345 nm, with a flow rate of 1.0 ml/min and a column temperature of 30 ℃. The excipients and solvents in the granule could be well separated from the drug under such a designated chromatogram condition and did not interfere with the assay. A good linear relationship was found between peak area and the concentration of berberine hydrochloride in the range of 16.0 -48.0 I^g/mL. The average recovery of berberine hydrochloride was 99.09%. The established approach was specific, accurate, reliable, prompt, sensitive and applicable, and could be used to control the quality of Qingwen Baidu granule.展开更多
[Objectives]To screen optimum conditions of HPLC and TLC for qualitative discrimination of berberine hydrochloride contained in Jin Weng Zhili Particle,thus providing basis for quality standard. [Methods]According to ...[Objectives]To screen optimum conditions of HPLC and TLC for qualitative discrimination of berberine hydrochloride contained in Jin Weng Zhili Particle,thus providing basis for quality standard. [Methods]According to the method described in Chinese Veterinary Pharmacopoeia,thin layer chromatography and high performance liquid chromatography were used respectively for qualitative and quantitative identification of berberine hydrochloride contained in Jin Weng Zhili Particle by improving the conditions of extraction and purification. [Results]After optimizing TLC conditions of Jin Weng Zhili Particle,the separation effect of TLC of test samples was favorable. The spot color was clear,reproducibility was good,and precision was high. Under the conditions of mobile phase constituted by acetonitrile-water-glacial acetic acid-triethylamine( 28∶ 70∶ 1∶ 1),detection wavelength of 265 nm,flow rate of 1. 0 m L min^(-1)and column temperature of 35℃,the resolution of berberine hydrochloride was good; the injection volume in the range of 3. 15-50 μg· m L^(-1)had good linear relationship with the peak area( R^2= 0. 998); the average sample recovery rate(n=6) was 5. 672%,and RSD was 0. 864%; the content of berberine hydrochloride contained in Jin Weng Zhili Particle was 4. 023 mg. [Conclusions]The method was of good feasibility,reproducibility and specificity,and could be used for qualitative and quantitative detection of berberine hydrochloride contained in Jin Weng Zhili Particle.展开更多
Acknowledgements This work was supported by Educational Commission of Shanghai of China (2012JW19); Key Research Innovation Project (13ZZ099); Key Project from Department of Education of China (20123107130002); ...Acknowledgements This work was supported by Educational Commission of Shanghai of China (2012JW19); Key Research Innovation Project (13ZZ099); Key Project from Department of Education of China (20123107130002); Shanghai Eastern Scholar Program (2013-59) and Shanghai E-research Institute of Bioactive Constituent in TCM plan. Abstract: Aim This investigation was to identify whether Janus-activated kinase 2 (JAK2) and mitogen-activated protein kinase (MAPK) pathways were involved in the inhibitory effect of berberine hydrochloride (BER) on gastric cancer cell proliferation and IL-8 expression in vitro and in vivo. Methods CCK- 8 assay was used to assess the cell proliferation. IL-8 production was determined by ELISA and qPCR assay. Mo- lecular pathways involved were evaluated by ELISA and western-blotting methods. Results BER time- and dose- dependently inhibited the proliferation of MGC 803 and AGS cells. It also suppressed tumor growth in nude mice xenografted with MGC 803 cells. In addition, BER reduced interleukin-8 (IL-8) secretion of AGS cells as well as MGC 803 cells both in vitro and in vivo. Further study disclosed that inactivation of JAK2, p38 MAPK, ERK1/2 and JNK by BER contributed to the decreased proliferation and tumor growth as well as IL-8 expression in gastric cancer. Although there was no significantly synergistic inhibitory effect between BER and evodiamine on gastric cancer cell proliferation and tumor growth, BER could counteract the up-regulation of IL-8 induced by evodiamine in vitro and vivo. Conclusions Our results suggested that BER might be an efficient and safe drug candidate for treating gastric cancer through JAK2 and MAPK pathways.展开更多
The content of berberine hydrochloride(BH)in compound berberine tablets(CBTs)is subject to strict requirements.Its content is usually measured based on chemical analysis.In this paper,the fluorescence spectral imaging...The content of berberine hydrochloride(BH)in compound berberine tablets(CBTs)is subject to strict requirements.Its content is usually measured based on chemical analysis.In this paper,the fluorescence spectral imaging method was used to study the relative content of BH from a physics perspective.By comparing the relative fluorescence intensity of self-made CBTs with di®erent mass percentages of BH,a linear positive relationship was observed between the BH content and the relative fluorescence intensity,and accordingly the quality of CBTs of different brands was evaluated.The results indicate that the fluorescence spectral imaging method can be a simple,fast and nondestructive semi-quantitative analysis method to determine the content of BH in CBTs,and this method has great potential in the quality control of CBTs.展开更多
Objective:To evaluate the clinical efficacy of berberine hydrochloride in the treatment of ulcerative colitis and its influence on inflammatory factors.Methods:We searched VIP Chinese Journal Database(VIP),China Biome...Objective:To evaluate the clinical efficacy of berberine hydrochloride in the treatment of ulcerative colitis and its influence on inflammatory factors.Methods:We searched VIP Chinese Journal Database(VIP),China Biomedical Literature Database(CBM),Wanfang Data,China Knowledge Network(CNKI),and searched English databases including:PubMed,Embase,Web of Science,and Cochrane Library for randomized controlled studies of berberine hydrochloride in the treatment of ulcerative colitis.The retrieval time was from the establishment of the database to April 28,2021.After the quality evaluation of the selected literature,the RevMan5.3 software was used for statistical analysis.Results:Eight studies were included,involving 658 patients with ulcerative colitis.Meta analysis showed that the effective rate of the treatment group was higher than that of the control group,and the difference was statistically significant[OR=6.41,95%CI(3.25,12.65),Z=5.36,P<0.00001];IL-6[MD=-13.64,95%CI(-14.88,-12.41),Z=3.99,P<0.00001],IL-8[MD=-13.41,95%CI(-15.11,-11.71),Z=15.46,P<0.00001],tumor necrosis factor[MD=-5.62,95%CI(-8.35,-2.89),Z=4.03,P<0.0001],and disease activity index[MD=-2.34,95%CI(-2.55,-2.14),Z=22.37,P<0.00001]in the treatment group were lower than the control group,the difference was statistically significant;IL-10[MD=6.49,95%CI(5.64,7.35),Z=14.86,P<0.00001]in the treatment group was higher than the control group,and the difference was statistically significant;abdominal pain relief time[MD=-3.41,95%CI(-4.02,-2.79),Z=10.84,P<0.00001],diarrhea relief time[MD=-2.5,95%CI(-2.86,-2.15),Z=13.87,P<0.00001],pus and blood stool remission time[MD=-2.44,95%CI(-2.87,-2.00).Z=10.87,P<0.00001]in the treatment group were shorter than the control group,and the difference was statistically significant.Conclusion:Berberine hydrochloride can assist in the treatment of ulcerative colitis by reducing the level of inflammatory factors.展开更多
文摘The aim of the study was to prepare berberine hydrochloride long-circulating liposomes and optimize the formulation and process parameters,and investigate the influence of different factors on the encapsulation efficiency.Berberine hydrochloride liposomes were prepared in response to a transmembrane ion gradient that was established by ionophore A23187.Free and liposomal drug were separated by cation exchange resin,and then the amount of intraliposomal berberine hydrochloride was determined by UV spectrophotometry.The optimized encapsulation efficiency of berberine hydrochloride liposomes was 94.3%2.1%when the drug-to-lipid ratio was 1:20,and the mean diameter was 146.9 nm3.2 nm.As a result,the ionophore A23187-mediated ZnSO_(4)gradient method was suitable for the preparation of berberine hydrochloride liposomes that we could get the desired encapsulation efficiency and drug loading.
基金Supported by Technology Innovation Project of Shandong Province(201210916001)
文摘The paper was to establish a simple and sensitive HPLC method for determination of berbefine hydrochloride content in Qingwen Baidu granule. The HPLC system consisted of Stable Bond - C18 column (4.6 × 150 mm, 5um) and with a mobile phase of acetonitrile -0.05mol/L potassium dihydrogen phosphate solution (50:50,v:v) mixture. Berberine hydrochloride was detected at the wavelength of 345 nm, with a flow rate of 1.0 ml/min and a column temperature of 30 ℃. The excipients and solvents in the granule could be well separated from the drug under such a designated chromatogram condition and did not interfere with the assay. A good linear relationship was found between peak area and the concentration of berberine hydrochloride in the range of 16.0 -48.0 I^g/mL. The average recovery of berberine hydrochloride was 99.09%. The established approach was specific, accurate, reliable, prompt, sensitive and applicable, and could be used to control the quality of Qingwen Baidu granule.
基金Supported by Special Project of National Public Benefit Industry(Agriculture)(201303040-05)Special Project of Science and Technology Groundwork(2013-FY110600-03)
文摘[Objectives]To screen optimum conditions of HPLC and TLC for qualitative discrimination of berberine hydrochloride contained in Jin Weng Zhili Particle,thus providing basis for quality standard. [Methods]According to the method described in Chinese Veterinary Pharmacopoeia,thin layer chromatography and high performance liquid chromatography were used respectively for qualitative and quantitative identification of berberine hydrochloride contained in Jin Weng Zhili Particle by improving the conditions of extraction and purification. [Results]After optimizing TLC conditions of Jin Weng Zhili Particle,the separation effect of TLC of test samples was favorable. The spot color was clear,reproducibility was good,and precision was high. Under the conditions of mobile phase constituted by acetonitrile-water-glacial acetic acid-triethylamine( 28∶ 70∶ 1∶ 1),detection wavelength of 265 nm,flow rate of 1. 0 m L min^(-1)and column temperature of 35℃,the resolution of berberine hydrochloride was good; the injection volume in the range of 3. 15-50 μg· m L^(-1)had good linear relationship with the peak area( R^2= 0. 998); the average sample recovery rate(n=6) was 5. 672%,and RSD was 0. 864%; the content of berberine hydrochloride contained in Jin Weng Zhili Particle was 4. 023 mg. [Conclusions]The method was of good feasibility,reproducibility and specificity,and could be used for qualitative and quantitative detection of berberine hydrochloride contained in Jin Weng Zhili Particle.
文摘Acknowledgements This work was supported by Educational Commission of Shanghai of China (2012JW19); Key Research Innovation Project (13ZZ099); Key Project from Department of Education of China (20123107130002); Shanghai Eastern Scholar Program (2013-59) and Shanghai E-research Institute of Bioactive Constituent in TCM plan. Abstract: Aim This investigation was to identify whether Janus-activated kinase 2 (JAK2) and mitogen-activated protein kinase (MAPK) pathways were involved in the inhibitory effect of berberine hydrochloride (BER) on gastric cancer cell proliferation and IL-8 expression in vitro and in vivo. Methods CCK- 8 assay was used to assess the cell proliferation. IL-8 production was determined by ELISA and qPCR assay. Mo- lecular pathways involved were evaluated by ELISA and western-blotting methods. Results BER time- and dose- dependently inhibited the proliferation of MGC 803 and AGS cells. It also suppressed tumor growth in nude mice xenografted with MGC 803 cells. In addition, BER reduced interleukin-8 (IL-8) secretion of AGS cells as well as MGC 803 cells both in vitro and in vivo. Further study disclosed that inactivation of JAK2, p38 MAPK, ERK1/2 and JNK by BER contributed to the decreased proliferation and tumor growth as well as IL-8 expression in gastric cancer. Although there was no significantly synergistic inhibitory effect between BER and evodiamine on gastric cancer cell proliferation and tumor growth, BER could counteract the up-regulation of IL-8 induced by evodiamine in vitro and vivo. Conclusions Our results suggested that BER might be an efficient and safe drug candidate for treating gastric cancer through JAK2 and MAPK pathways.
基金The authors would like to acknowledge the support of the Ph.D.research startup foundation of Guangdong Medical University (2XB14006).
文摘The content of berberine hydrochloride(BH)in compound berberine tablets(CBTs)is subject to strict requirements.Its content is usually measured based on chemical analysis.In this paper,the fluorescence spectral imaging method was used to study the relative content of BH from a physics perspective.By comparing the relative fluorescence intensity of self-made CBTs with di®erent mass percentages of BH,a linear positive relationship was observed between the BH content and the relative fluorescence intensity,and accordingly the quality of CBTs of different brands was evaluated.The results indicate that the fluorescence spectral imaging method can be a simple,fast and nondestructive semi-quantitative analysis method to determine the content of BH in CBTs,and this method has great potential in the quality control of CBTs.
基金This study was supported by the National Natural Science Foundation of China(No.81473689)the National Natural Science Foundation of Beijing(No.7202112)。
文摘Objective:To evaluate the clinical efficacy of berberine hydrochloride in the treatment of ulcerative colitis and its influence on inflammatory factors.Methods:We searched VIP Chinese Journal Database(VIP),China Biomedical Literature Database(CBM),Wanfang Data,China Knowledge Network(CNKI),and searched English databases including:PubMed,Embase,Web of Science,and Cochrane Library for randomized controlled studies of berberine hydrochloride in the treatment of ulcerative colitis.The retrieval time was from the establishment of the database to April 28,2021.After the quality evaluation of the selected literature,the RevMan5.3 software was used for statistical analysis.Results:Eight studies were included,involving 658 patients with ulcerative colitis.Meta analysis showed that the effective rate of the treatment group was higher than that of the control group,and the difference was statistically significant[OR=6.41,95%CI(3.25,12.65),Z=5.36,P<0.00001];IL-6[MD=-13.64,95%CI(-14.88,-12.41),Z=3.99,P<0.00001],IL-8[MD=-13.41,95%CI(-15.11,-11.71),Z=15.46,P<0.00001],tumor necrosis factor[MD=-5.62,95%CI(-8.35,-2.89),Z=4.03,P<0.0001],and disease activity index[MD=-2.34,95%CI(-2.55,-2.14),Z=22.37,P<0.00001]in the treatment group were lower than the control group,the difference was statistically significant;IL-10[MD=6.49,95%CI(5.64,7.35),Z=14.86,P<0.00001]in the treatment group was higher than the control group,and the difference was statistically significant;abdominal pain relief time[MD=-3.41,95%CI(-4.02,-2.79),Z=10.84,P<0.00001],diarrhea relief time[MD=-2.5,95%CI(-2.86,-2.15),Z=13.87,P<0.00001],pus and blood stool remission time[MD=-2.44,95%CI(-2.87,-2.00).Z=10.87,P<0.00001]in the treatment group were shorter than the control group,and the difference was statistically significant.Conclusion:Berberine hydrochloride can assist in the treatment of ulcerative colitis by reducing the level of inflammatory factors.