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Article in Chinese | WPRIM | ID: wpr-906138


Objective:Considering the efficacy of Gegen Qinliantang (GQT) in releasing exterior and clearing interior to alleviate dampness-heat dysentery, we analyzed the mechanism of the chloroform extract of GQT in alleviating enterotoxicity caused by irinotecan to provide an experimental basis for the development of GQT. Method:Kunming mice (<italic>n</italic>=60) were randomly divided into a blank group, a model group, a loperamide group (positive drug of loperamide hydrochloride capsule, 0.4 mg·kg<sup>-1</sup>), and high- (2.3 g·kg<sup>-1</sup>) and low-dose (1.16 g·kg<sup>-1</sup>) GQT chloroform extract groups. The mouse model of delayed diarrhea was established by intraperitoneal injection of irinotecan hydrochloride (CPT-11, 55 mg·kg<sup>-1</sup>) for four consecutive days, meanwhile, the mice in the blank group only received the same volume of normal saline. Corresponding drugs were administered by gavage on the fifth day, respectively, while the ones in the blank group and model group were given distilled water for five consecutive days. The general condition of mice in each group was observed, and diarrhea indexes of mice were recorded. Pathological changes in colon tissues of mice were observed by hematoxylin-eosin (HE) staining. The tumor necrosis factor (TNF)-<italic>α</italic>, interleukin (IL)-1<italic>β</italic>, cyclooxygenase (COX)-2, intercellular adhesion molecule (ICAM)-1, glutathione peroxidase (GSH-Px), superoxide dismutase (SOD), malondialdehyde (MDA) and nitric oxide (NO) levels in colon tissues were detected with the assay kits. Furthermore, the expression levels of Kelch sample epoxy chloropropane associated protein 1 (Keap1), nuclear factor E<sub>2</sub> related factor 2 (Nrf2), tight junction protein-1 (ZO-1), heme oxygenase-1 (HO-1) and tight junction protein (Occludin) were detected by Western blot. Result:Compared with the blank group, the model group showed declined body weight and reduced contents of GSH-Px and SOD (<italic>P</italic><0.01), whereas increased diarrhea indexes and TNF-<italic>α</italic>, IL-1<italic>β</italic>, COX-2, ICAM-1, MDA and NO levels (<italic>P</italic><0.01). Abundant inflammatory cells and colonic mucosa with defects, swelling, bleeding, and inflammatory exudation were revealed by HE staining in the mice of the model group. The expression levels of Keap1, Nrf2, ZO-1, HO-1 and Occludin in colon tissues significantly declined (<italic>P</italic><0.01). Compared with the model group, the loperamide group and the high- and low-dose GQT chloroform extract groups exhibited improved weight loss, reduced diarrhea indexes, diminished TNF-<italic>α</italic>,<italic> </italic>IL-1<italic>β</italic>, COX-2, ICAM-1, MDA and NO, and elevated GSH-Px and SOD. HE staining indicated that the cells were compactly arranged with clear nuclei in the high- and low-dose GQT chloroform extract groups, and the expression levels of Keap1, Nrf2, HO-1, Occludin, and ZO-1 were up-regulated. Conclusion:GQT chloroform extract may alleviate CPT-11-induced delayed diarrhea by regulating inflammation and oxidative stress for enhancing the intestinal barrier function. These findings are expected to provide a reference for exploring the toxicity-attenuating effect of Chinese medicinals on chemotherapy drugs and for developing famous classical formulas.

Acta Pharmaceutica Sinica ; (12): 258-268, 2019.
Article in Chinese | WPRIM | ID: wpr-780100


Anti-tumor intervention using a combination of drugs shows unique advantages in research and clinical practice. Active ingredients of Chinese herbal medicines can offer many advantages, such as high efficiency, low toxicity, wide effect and multiple targets. At present, the combination active ingredients of Chinese herbal and chemotherapy drugs have attracted increased attention. Nano-drug delivery system provides a good carrier platform for anti-tumor drugs. Nano-carrier-mediated drug combination is a promising strategy. In this paper, we review the mechanisms of the anti-tumor effects of active ingredients of traditional Chinese medicine combined with chemotherapeutic drugs and consider the advantages of drug-loaded nanoparticles, the types and characteristics of carriers. The aim is to provide a reference for the research of effective regimen for anti-tumor therapy.

Article in Chinese | WPRIM | ID: wpr-802141


Objective: To prepare standard decoction of Chuanxiong Rhizoma and conduct its quality analysis.Method: According to the requirements of standard decoction,15 batches of standard decoction of Chuanxiong Rhizoma from three producing areas were prepared,the HPLC fingerprint was established and the quality analysis was carried out by cluster analysis;under common pattern of fingerprint,the simultaneous determination of four index components (ferulic acid,senkyunolide I,senkyunolide A and ligustilide) was established by HPLC.The transfer rates of main components,dry extract yield,pH value of samples were measured.Result: A total of 15 batches of standard decoctions of Chuanxiong Rhizoma were fingerprinted by Similarity Evaluation System for Chromatographic Fingerprint of Traditional Chinese Medicine (edition of 2012A).Twenty-two common peaks were identified,and their similarities were all greater than 0.92,and peak 11,13,17,18,19 and 20 were identified qualitatively as ferulic acid,senkyunolide I,senkyunolide A,n-butylphthalide,coniferyl ferulate and ligustilide,respectively.The quality overview of standard decoction of Chuanxiong Rhizoma from three producing areas could be distinguished through cluster analysis,which showed that there were differences in quality of Chuanxiong Rhizoma from different producing areas,but the quality was relatively stable in different batches of samples from the same origin.Under common pattern,there were four major components in 15 batches of standard decoction of Chuanxiong Rhizoma,including ferulic acid,senkyunolide I,senkyunolide A and ligustilide.Contents of senkyunolide A (0.176 3-0.249 8 g·L-1) and senkyunolide I (0.065 2-0.103 4 g·L-1) was high in the standard decoction,content of ligustilide (0.040 0-0.089 8 g·L-1) followed,and content of ferulic acid (0.022 0-0.042 3 g·L-1) was the lowest,transfer rates of the above four components were 6.63%-11.82%,33.32%-55.98%,1.26%-3.73% and 16.39%-33.05%,respectively.Dry extract yield of the standard decoction was 12.69% to 19.78%,and the pH was 4.54 to 4.82.Conclusion: This study establishes the fingerprint and multi-component determination methods of standard decoctions of Chuanxiong Rhizoma from various producing areas,which is suitable for quality control of this standard decoction.

Chinese Traditional Patent Medicine ; (12): 1083-1087, 2018.
Article in Chinese | WPRIM | ID: wpr-710273


AIM To establish the UPLC fingerprints of Gegen Qinlian Pills (Puerariae lobatae Radix,Scutellariae Radix,Coptidis Rhizoma and Glycyrrhizae Radix et Rhizoma Praeparata cum Melle) and to determine the contents of puerarin,baicalein,palmatine,wogonin,daidzin,daidzein and jateorhizine.METHODS The analysis of 70% methanol extract of this drug was performed on a 30 ℃ thermostatic Waters ACQUITY UPLC(C) BEH C18column,with the mobile phase comprising of methanol-0.1% glacial acetic acid flowing at 0.3 mL/min in a gradient manner,and the detection wavelength was set at 260 nm.RESULTS There were twenty-five common peaks in the fingerprints of ten batches of samples with the similarities of more than 0.98.Seven constituents showed good linear relationships within their own ranges (r > 0.999 0),whose average recoveries were 98.99%-103.6% with the RSDs of 1.13%-2.03%.CONCLUSION This simple,reliable and reproducible method can be used for the quality control of Gegen Qinlian Pills.

International Eye Science ; (12): 2011-2015, 2018.
Article in Chinese | WPRIM | ID: wpr-688386


@#AIM: To explore the efficacy and safety of vitrectomy combine with internal limiting membrane peeling and epiretinal membranes peeling in the treatment of idiopathic epiretinal membrane(IERM). <p>METHODS: In this retrospective study, 53 patients(53 eyes)who underwent vitrectomy for IERM from January 2015 to December 2015 were evaluated, with 24-month follow-up. Only removal of the epiretinal membrane(ERM group)was performed in 21 patients, while 32 had removal of the epiretinal membrane associated with internal limiting membrane peeling(ERM+ILM group). The best corrected visual acuity(BCVA), central macular thickness(CMT)and the complications were observed and analyzed before operation, 1, 3, 12, 24mo after operation. <p>RESULTS: Both groups showed significant improvement of BCVA when compared to preoperative BCVA(<i>P</i><0.05). In ERM group the BCVA before and 1, 3, 12 and 24mo after operation were 0.676±0.137,0.576±0.099, 0.551±0.085, 0.514±0.077, 0.506±0.032, and in ERM+ILM group were 0.659±0.132, 0.582±0.111, 0.578±0.101, 0.523±0.062, 0.511±0.081. The comparison between the two groups at 1, 3,12 and 24mo after surgery were no significant differences(<i>P</i>>0.05). After operation, statistically significant CMT reduction occurred in both groups(<i>P</i><0.05). In ERM group the preoperative and postoperative CMT were 461.14±13.477μm, 402.36±11.346μm, 368.52±13.216μm, 325.24±8.246μm, 273.29±8.973μm, and in ERM+ILM group were 462.47±14.287μm, 414.72±9.237μm, 373.44±8.328μm, 328.94±6.923μm, 274.28±8.340μm. There were no significant difference between the two groups at 1, 3, 12 and 24 after operation(<i>P</i>>0.05). There were 3 cases(3 eyes)had retinal punctate hemorrhage after operation, of which 1(5%)was from the ERM group and 2(6%)were from the ERM+ILM group. No significant difference was observed between the groups(<i>P</i>=1.000). At the end of follow-up, 4 cases(19%)presented with recurrence of the epiretinal membrane all from the ERM group, and there no recurrence was found in ERM+ILM group, and the difference was statistically significant(<i>P</i>=0.020).<p>CONCLUSION: Vitrectomy with ILM peeling and epiretinal membranes peeling for the treatment of epiretinal membrane is the efficacy and safety, and it may reduce the recurrence.

Article in Chinese | WPRIM | ID: wpr-852315


Objective: To establish the HPLC chemical fingerprints of Wuwei Xiaoduyin Oral Liquid (WXOL) and simultaneous determination method for six major characteristic components in this herbal preparation, i.e. chlorgenic acid, luteoloside, luteolin, linarin, caffeic acid, and esculetin. Methods: Both chemical fingerprint analysis and quantitative determination were implemented by Agilent 1260 high performance liquid chromatography system with an Agilent 5 TC-C18 column (250 mm × 4.6 mm, 5 μm). A gradient elution program, with the mobile phase of 0.5% glacial acetic acid aqueous solution (A) and methanol (B), was employed as following: 0—10 min, 10%—32% B; 10—20 min, 32% B; 20—25 min, 32%—46% B; 25—31 min, 46%—48% B; 31—41 min, 48%—80% B at the flow rate of 1.0 mL/min. The detection wavelength and column temperature were set at 320 nm and 30 ℃, respectively. Additionally, fingerprint similarity of 10 batches of WXOL was evaluated by software “Similarity Evaluation System for Chromatographic Fingerprint of TCM” published by GPC (Version 2012). The amounts of six characteristic components in WXOL were also simultaneously determined. Results: The common fingerprint pattern derived from 10 batches of samples was obtained with the similarity over 0.98 and 17 common peaks defined. Meanwhile, some common peaks were identified via peak pattern match with standard substances, showing that the peak No.5, No.7, No.8, No.12, No.16, and No.17 was chlorgenic acid, esculetin, caffeic acid, luteoloside, linarin, and lutelin, respectively. Chlorgenic acid content range of 54.038 3—105.551 1 μg/mL, esculetin content range of 4.122 1—31.359 9 μg/mL, caffeic acid content range of 2.413 0—4.420 7 μg/mL, luteoloside content range of 4.042 8—11.312 8 μg/mL, linarin content range of 3.866 3—46.271 9 μg/mL, and luteolin content range of 0.990 8—2.126 8 μg/mL. In combination with the non-significant difference of multiple characteristic components content among 10 batches of samples, the quality of home-made WXOL would be stable. Conclusion: A novel quality control method, which is HPLC fingerprint in combination with simultaneous quantitative analysis of multiple components, was established in this study, with high repeatability and reliability. Therefore, this method provides an applicable approach for the quality control of WXOL.