Ebpay生命医药出版社

    • Ebpay生命

    100763

    论文已发表

    提 交 论 文


    注册即可获取Ebpay生命的最新动态

    注 册



    IF 收录期刊



    • 3.3 Breast Cancer (Dove Med Press)
    • 3.4 Clin Epidemiol
    • 2.5 Cancer Manag Res
    • 2.9 Infect Drug Resist
    • 3.5 Clin Interv Aging
    • 4.7 Drug Des Dev Ther
    • 2.7 Int J Chronic Obstr
    • 6.6 Int J Nanomed
    • 2.5 Int J Women's Health
    • 2.5 Neuropsych Dis Treat
    • 2.7 OncoTargets Ther
    • 2.0 Patient Prefer Adher
    • 2.3 Ther Clin Risk Manag
    • 2.5 J Pain Res
    • 2.8 Diabet Metab Synd Ob
    • 2.8 Psychol Res Behav Ma
    • 3.0 Nat Sci Sleep
    • 1.8 Pharmgenomics Pers Med
    • 2.7 Risk Manag Healthc Policy
    • 4.2 J Inflamm Res
    • 2.1 Int J Gen Med
    • 4.2 J Hepatocell Carcinoma
    • 3.7 J Asthma Allergy
    • 1.9 Clin Cosmet Investig Dermatol
    • 2.7 J Multidiscip Healthc



    更多详情 >>





    已发表论文

    用于口服递送的大黄酸加载聚纳米粒 (乳酸-共- 乙醇酸) 的制备、表征和体内研究 

     

    Authors Yuan Z, Gu XH

    Published Date April 2015 Volume 2015:9 Pages 2301—2309

    DOI http://dx.doi.org/10.2147/DDDT.S81320

    Received 21 January 2015, Accepted 6 March 2015, Published 21 April 2015

    Abstract: A novel rhein formulation based on poly(lactic-co -glycolic acid) (PLGA) nanoparticles (NPs) suitable for oral administration was developed in this study. The designed nanosystems were obtained by a modified spontaneous emulsification solvent diffusion method. The morphology of rhein-loaded PLGA NPs showed a spherical shape with a smooth surface, without any particle aggregation. Mean size of the NPs was 140.5±4.3 nm, and the zeta potential was -16.9±3.1 mV. The average drug loading was 3.9%±0.7%, and encapsulation efficiency was 84.5%±6.2%. Meanwhile, NPs are characterized by the slower release (only about 70% of rhein is released within 5 hours), and the model that fitted best for rhein released from the NPs was Higuchi kinetic model with correlation coefficient r =0.9993, revealing that rhein could be controlled released from the NPs. In vivo, NPs altered the distribution of rhein, and the half-life after oral administration was prolonged remarkably more than those of suspensions (22.6 hours vs 4.3 hours). The pharmacokinetic results indicated that the NPs had sustained-release efficacy. The area under the curve0–∞ of the NPs formulation was 3.07-fold higher than that of suspensions, suggesting that the encapsulated rhein had almost been absorbed in rats over the period of 12 hours. Although rhein-loaded PLGA NP formulations are hopefully used as a chemotherapeutic or adjuvant agent for human gastric cancer (SGC-7901), their in vivo antitumor effect and mechanisms at the molecular level still need further study.
    Keywords: rhein, PLGA, nanoparticles, release, pharmacokinetics, SGC-7901






    Download Article[PDF]