1.Comparison of Effects of Xiaoyu Tablets and its Constituents on Endothelin-1 and Nitric Oxide in Atherosclerotic Rabbits
Meilin XIE ; Zhenlun GU ; Lujia ZHU ; Qun LU
Chinese Traditional Patent Medicine 1992;0(09):-
Objective: To determine the rationality of prescription of Xiaoyu tablets. Methods: The effects of Xiaoyu tablets and its single constituents on endothelin-1(ET-1) and nitric oxide(NO) in atherosclerotic rabbits were observed. Results: Xiaoyu tablets showed stronger actions than its single constituents (extract of radix salviae miltiorrhizae or fructus crataegi) in decreasing the contents of ET-1 in plasma and atherosclerotic vessel wall and increasing the contents of NO in serum and atherosclerotic vessel wall. Conclusion: There was the obvious synergism on reduction of ET-1 and elevation of NO in atheroscleerotic rabbits when both extracts of the Chinese herbal medicines were simultaneously used.
2.Comparison of effects of XIAOYU TABLETS and its constituents on endothelin-1 and nitric oxide in atherosclerotic rabbits
Meilin XIE ; Zhenlun GU ; Lujia ZHU ; Qun LU ;
Chinese Traditional and Herbal Drugs 1994;0(11):-
Object To determine the rationality of prescription of XIAOYU TABLETS. (Tablet for the elimination of blood stasis). Methods The effects of XIAOYU TABLETS and its individual constituents on endothelin 1 and nitric oxide in atherosclerotic rabbits were observed and compared. Results XIAOYU TABLETS showed stronger actions than its individual constituents (extract of Radix Salviae Miltiorrhizae or Fructus Crataegi) in decreasing the contents of endothelin 1 in plasma and atherosclerotic vessel wall and increasing the contents of nitric oxide in serum and atherosclerotic vessel wall. Conclusion The combine use of Radix Salviae Miltiorrhizae and Fructus Crataegi extracts showed an obvious synergistic effect on reduction of endothelin 1 and elevation of nitric oxide in atherosclerotic rabbits.
3.The relationship between visceral obesity and hyperuricemia in adults of Heping District of Tianjin
Li ZHENG ; Meilin ZHANG ; Ping LI ; Yufeng ZHU ; Hong CHANG ; Guowei HUANG
Tianjin Medical Journal 2016;44(12):1456-1459
Objective To analyze the relationship between visceral obesity and hyperuricemia (HUA), and to provide the basis for the further study of obesity and HUA. Methods A total of 1 824 participants came from Tianjin Heping District Health Education Guidance Center in 2014 were selected in this study. The investigation was performed with physical examination and laboratory test for all subjects. Body fat analyzer was used to measure the visceral fat area (VFA). The Logistic regression analysis was used to evaluate the relationship between visceral obesity and HUA. Results The prevalence of HUA in men and women increased gradually with VFA increasing (P<0.05). There was a positive correlation between VFA, waist circumference (WC), waist-to-hip ratio (WHR) and serum uric acid (SUA) level (P<0.05). According to the results of Logistic regression analysis, VFA (OR=1.805,95%CI=1.166-2.794) and WHR (OR=2.108,95%CI=1.061-4.189) were the risk factors of HUA in men. And in women, VFA (OR=1.775,95%CI=1.154-2.732), WC (OR=2.015, 95%CI=1.137- 3.570) and WHR (OR=2.489, 95% CI=1.400- 4.426) were the risk factors of HUA. Conclusion The accumulation of visceral fat will increase the risk of HUA. So it is necessary to strengthen the detection of visceral obesity to prevent the development of HUA.
4.Effect of Maren Pills Combined with Lactulose Preventing Opioid-induced Constipation in Cancer Pain Pa-tients
Jun XUE ; Daokun WANG ; Jingyu LIU ; Ting ZHU ; Meilin CHEN ; Wenjuan LI
China Pharmacy 2015;(20):2835-2837
OBJECTIVE:To observe the effect of Maren pills combined with lactulose preventing opioid-induced constipation (OIC) in patients with cancer pain. METHODS:281 cases of advanced cancer pain were selected and divided into Maren pills group,lactulose group and drug combination group. 3 groups were given opioid to relieve pain,and additionally received Maren pills,lactulose or drug combination(lactulose for 3 d and then Maren pills for 3 d instead,repeated in the same way)to treatment OIC prophylactically. The constipation conditions of 3 groups were observed and recorded at 2,4 and 6 weeks after the therapy. And then the data were analyzed statistically. RESULTS:The regular doses of Maren pills and lactulose alone or combination had prevention effect on OIC. Drug combination showed better long-term prevention effect;there were statistically significant difference in constipation conditions between grug combination group and other 2 groups after 4 and 6 weeks of therapy (P<0.05 or P<0.01). CONCLUSIONS:Maren pills combined with lactulose are obvious benefit for constipation prevention and relief in cancer pain patients who use opioid for a long time.
5.Effects of probiotics combined with dietary intervention on glucose and lipid metabolism and pregnancy outcome in gestational diabetes mellitus
Zhijuan QIN ; Zongli MA ; Meilin ZOU ; Xiaoqin ZHU ; Shu LIU ; Xiaomei WANG
Chongqing Medicine 2024;53(1):102-107,113
Objective To investigate the effects of probiotics combined with dietary intervention on pe-ripheral blood glucose and lipid metabolism indicators,placental tissue insulin signaling pathway proteins ex-pression and pregnant outcome in the patients with gestational diabetes mellitus(GDM).Methods A total of 83 patients with GDM in this hospital from December 2021 to December 2022 were selected as the study sub-jects and divided into the probiotics group(probiotics combined with diet intervention,43 cases)and control group(simple diet intervention,40 cases)by the random number table method.The levels of peripheral blood glucose,lipid and insulin resistance related indicators before the intervention and in 8 weeks after the interven-tion were compared between the two groups.The histological changes of placenta were observed by HE stai-ning.The pathological indicators were compared between the two groups.The expression levels of insulin re-ceptor substrate-1(IRS-1),glucose transporter 4(GLUT4)and synaptosome-associated protein of 23 kDa(SNAP23)in placental tissue were detected by immunohistochemistry.The pregnant adverse outcomes were compared between the two groups,and the clinical efficacy of probiotics was evaluated.Results Compared with the control group,the levels of fasting blood glucose(FBG),fasting insulin(FINS),serum triglyceride(TG)and low density lipoprotein cholesterol(LDL-C)in 8 weeks after intervention in the probiotics group were significantly decreased(P<0.05),and the level of serum high density lipoprotein cholesterol(HDL-C)was significantly increased(P<0.05).There were no significant differences in the incidence rates of poor villi maturation,thickening of dry villi arterioles and capillary filling in villi interstitial between the two groups(P>0.05).Compared with the control group,the expression levels of IRS-1,GLUT4 and SNAP23 in placen-tal tissue of the probiotics group were significantly increased(P<0.05).The incidence rates of neonatal hy-poglycemia and neonatal hyperbilirubinemia in the probiotics group were significantly lower than those in the control group(P<0.05).Conclusion Compared with simple dietary intervention,probiotics combined with dietary intervention has more advantages in improving glucose and lipid metabolism of GDM patients,moreo-ver reduces the adverse events occurrence in newborns.
6.Mechanism of Wumeiwan in Treatment of Emotional Disorders Based on Secrets for Auxiliary Cultivation Life
Huimin YUAN ; Meilin ZHU ; Dan ZHAO ; Xiao CHEN ; Yanqiu DING ; Lijun MAO
Chinese Journal of Experimental Traditional Medical Formulae 2023;29(7):230-236
Wumeiwan are recorded in the Jueyin chapter of Treatise on Cold Damage and Miscellaneous Diseases (《伤寒杂病论》), and many doctors in the past dynasties believed that they had the effects of calming intestinal ascarid by warming Zang organs. The clinical application was limited. Since KE Qin, a doctor in the Qing dynasty, proposed that Wumeiwan were the primary prescription against Jueyin diseases, Wumeiwan have been valued by doctors, and their clinical application has also been expanded. The syndrome indicated for Wumeiwan is attributed, not only to the ascarid internal harassment, but to the abnormal Qi movement of wind and wood in Jueyin and the dysfunction of Yin and Yang. According to the functions of six meridians based on the theory of "open-close axis" in Huangdi's Internal Classic (《黄帝内经》) and the original texts of Treatise on Cold Damage and Miscellaneous Diseases, Yinshu refers to Jueyin. Wumeiwan, the primary prescription against Jueyin diseases, have the function of connecting Yin and Yang, and they can treat diseases caused by Qi disturbance of Jueyin and cold and heat in complexity. Sharing the same resource, the Secrets for Auxiliary Cultivation Life: The Essential Method of Using Herbal Medicine for the Differential Treatment of the Five Zang Organs (《辅行诀五脏用药法要》) and Treatise on Cold Damage and Miscellaneous Diseases both consult Models of the Classic of Decoction (《汤液经方》). The formulation rules of tonic/purgative and collapse-saving prescriptions in Secrets for Auxiliary Cultivation Life follow the recorded "Tang Ye Jing Fa Tu" (an image revealing the compatibility principles of Chinese herbal drugs) and are closely related to the five elements theory. By exploring the formulation rules in "Tang Ye Jing Fa Tu" and the five elements of drugs, this study analyzed Wumeiwan and proved that Wumeiwan mainly acted on the liver, spleen, and heart. According to the Five Zang-organs Storing Spirit theory from Huangdi's Internal Classic, the above three organs are closely related to emotional adjustment. Therefore, the treatment of emotional disorders caused by qi disturbance of Jueyin and cold and heat in complexity with Wumeiwan is supported by evidence. At the end of this article, the reports on the treatment of emotional disorders with Wumeiwan in recent years were listed and reviewed. This article provides new ideas for the clinical application of Wumeiwan in the treatment of emotional disorders and expands the application range.
7.Effect of methanol-ethyl acetate partitioned fractions from on proliferation and apoptosis of human non-small cell lung cancer H1975 cells.
Jiahui GUI ; Meilin ZHU ; Xiangjian BAI ; Bohan LI ; Meijia GAO ; Hui MA ; Hongmei LI ; Chengzhu WU
Journal of Southern Medical University 2019;39(2):169-174
OBJECTIVE:
To investigate the effects of methanol-ethyl acetate partitioned fractions from (MEDS) on the proliferation and apoptosis of human non-small cell lung cancer H1975 cells.
METHODS:
The systemic solvent extraction method was used to preliminary separation of the effective fractions in the methanol extract of . The cytotoxicity of each extract (5, 10, 20, 40, and 80 μg/mL) was tested using MTT assay. Colony cloning method was used to assess the effect of different concentrations of methanol-ethyl acetate partitioned fractions from MEDS (5, 10, 20, 40, and 80 μg/ mL) on the proliferation of H1975 cells. Flow cytometric analysis with Annexin V-FITC/PI staining was performed to detect the apoptosis of the cells after treatment with different concentrations of MEDS fractions (10, 20, and 40 μg/mL). Western blotting was used to evaluate the effects of MEDS fractions on the expressions of apoptosis-related proteins Akt, Bax, and Bcl-2. The anti-tumor activity of 100 mg/kg MEDS fractions was tested in a nude mouse model bearing H1975 cell xenografts.
RESULTS:
MTT assay and colony forming experiment showed that MEDS fractions significantly inhibited the proliferation of H1975 cells in a dose-and time-dependent manner ( < 0.05). The results of flow cytometry showed that MEDS fractions induced obvious apoptosis of H1975 cells in a concentration-dependent manner ( < 0.05). MEDS fractions also significantly decreased the expressions of Bcl-2 and Akt protein and increased the protein expression of Bax ( < 0.05). In the tumor-bearing nude mouse model, MEDS fractions showed potent anti-tumor effects with a low toxicity to affect the body weight and organs of the mice.
CONCLUSIONS
The methanol-ethyl acetate partitioned fractions from MEDS show potent anti-tumor activity both and , suggesting their value as promising therapeutic agents against lung cancer.
Acetates
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Animals
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Antineoplastic Agents, Phytogenic
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isolation & purification
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pharmacology
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Apoptosis
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drug effects
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Carcinoma, Non-Small-Cell Lung
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pathology
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Cell Line, Tumor
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Cell Proliferation
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drug effects
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Heterografts
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Humans
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Lung Neoplasms
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pathology
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Methanol
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Mice
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Mice, Nude
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Plant Extracts
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isolation & purification
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pharmacology
8.Development of a practical innovation course for biological engineering major under the background of Engineering Education Certification.
Lingtian WU ; Jinnan WU ; Yibo ZHU ; Delei XU ; Meilin ZHAO ; Luye YAO ; Hong JI
Chinese Journal of Biotechnology 2021;37(12):4455-4464
According to the teaching philosophy of the outcome-based education, this study elaborates the development of a practical innovation course for biological engineering major after five runs of teaching practice and continuous improvement. It mainly includes the methods for selection of teaching subjects, implementation of teaching process, process assessment, evaluation and improvement. Based on the performance and achievements of three grades of students majored in bioengineering, we found that the logic and methods of the practical innovation course could greatly stimulate the motivation of students for learning, as well as their scores. Therefore, the logic and methods described in this study may serve as a reference for the reforms of practical training courses of engineering major under the background of Engineering Education Certification.
Bioengineering
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Certification
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Curriculum
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Humans
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Learning
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Students
9.GLUT1-targeted Nano-delivery System for Active Ingredients of Traditional Chinese Medicine:A Review
Hua ZHU ; Huimin LUO ; Si LIN ; Bingbing WANG ; Jinwei LI ; Liba XU ; Miao ZHANG ; Fengfeng XIE ; Long CHEN ; Meilin LI ; Lu LU
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(12):270-280
Tumor cells use glycolysis to provide material and energy under hypoxic conditions to meet the energy requirements for rapid growth and proliferation, namely the Warburg effect. Even under aerobic conditions, tumor cells mainly rely on glycolysis to provide energy. Therefore, glucose transporter protein 1(GLUT1), which is involved in the process of glucose metabolism, plays an important role in tumorigenesis, development and drug resistance, and is considered to be one of the important targets in the treatment of malignant tumors. In recent years, research on tumor glucose metabolism has gradually become a hot spot. It has been shown that various factors are involved in the regulation of tumor energy metabolism, among which the role of GLUT1 is the most critical. In this paper, the authors reviewed the latest research progress of GLUT1-targeted traditional Chinese medicine(TCM) active ingredient nano-delivery system in tumor therapy, aiming to reveal the feasibility and effectiveness of this system in the delivery of chemotherapeutic drugs. The GLUT1-targeted TCM active ingredient nano-delivery system can overcome the bottleneck of the traditional targeting strategy as well as the high-permeability long retention(EPR) effect. In summary, the authors believe that the GLUT1-targeted TCM active ingredient nano-delivery system provides a new strategy for targeted treatment of tumors and has a broad application prospect in tumor prevention and treatment.