白芍总甙对应激大鼠下丘脑一垂体一肾上腺轴和免疫功能的调节

本文以血浆皮质酮（ＣＳ）、促肾上腺皮质激素（ＡＣＴＨ）和β－内啡肽（β－ＥＮＤ）含量为指标，观察了白芍总甙（ＴＧＰ）对不同状态（正常或不同应激）的大鼠下丘脑－垂体－肾上腺轴（ＨＰＡＡ）及其免疫功能的调节作用。结果表明，ＴＧＰ对正常大鼠的ＨＰＡＡ呈现小剂量（１２．５～５０．０ｍｇ·ｋｇ－１）兴奋（血浆ＣＳ含量升高）和大剂量（１００～２００ｍｇ·ｋｇ－１）抑制（血浆ＣＳ含量降低）的剂量依赖性调节作用。其次，ＴＧＰ可兴奋轻度应激（２０℃水游泳）大鼠的ＨＰＡＡ和抑制重度应激（４℃水游泳或２４ｈ束缚）大鼠的ＨＰＡＡ，使过高的血浆ＣＳ、ＡＣＴＨ和β－ＥＮＤ含量降低，提示ＴＧＰ对应激大鼠ＨＰＡＡ呈现轴机能依赖性的调节作用。此外，ＴＧＰ在降低束缚应激大鼠血浆ＣＳ、ＡＣＴＨ和β－ＥＮＤ水平的同时，上调受抑大鼠脾淋巴细胞ＣｏｎＡ增殖反应和腹腔Ｍ释放Ｈ２Ｏ２，提示ＴＧＰ的免疫调节作用可能与其调节ＨＰＡＡ的功能有关。     

白芍总苷对轻、中度寻常性银屑病患者血清中IL-17和IL-23的影响

目的通过检测白芍总苷(TGP)治疗前后寻常性银屑病(PV)患者血清中Th17细胞的相关细胞因子IL~17和IL-23水平,探讨TGP治疗寻常性银屑病的可能作用机制。方法采用双抗体夹心酶联免疫吸附法(ELISA)检测30例PV患者经TGP治疗前后及20例健康对照组外周血清中IL-17和IL-23水平的改变,并分析这两种炎症因子在治疗前、后与PASI评分的相关性。结果治疗前PV患者血清IL-17和IL-23水平均较健康对照组显著升高(P<0.05);TGP治疗后血清中IL-17和IL-23水平均较治疗前显著降低(P<0.05);治疗前、后患者血清IL-17和IL-23水平与PASI评分均呈正相关(P均<0.05)。结论 TGP可能通过调节Th17细胞相关细胞因子IL-17和IL-23发挥治疗银屑病的作用。     

马钱子总碱-白芍总苷脂质立方液晶纳米粒制备及体外评价

目的制备马钱子总碱(TASS)-白芍总苷(TGP)脂质立方液晶纳米粒(TASS-TGP LLCN),并考察其体外经皮吸收行为。方法运用前体注入法制备TASS-TGP LLCN,采用超滤离心法测定包封率,以包封率为指标采用均匀设计优化TASS-TGP LLCN处方,并对优化后制备的TASS-TGP LLCN基本性能进行评价。同时,采用泊洛沙姆407(F127)作为凝胶基质制备凝胶,运用Franz扩散池法比较TASS-TGPLLCN凝胶和TASS-TGP普通凝胶的体外经皮渗透特性,初步考察TASS-TGP LLCN凝胶的经皮渗透行为。结果 TASS-TGP LLCN的最佳制备处方为甘油单油酸酯(GMO)1.0 g,F127 0.25g,分散相60 mL,马钱子碱、士的宁及芍药苷包封率均大于50%,制剂质量评价显示制得的纳米粒平均粒径为(245.3±16.4)nm,pH值6.62,在透射电镜下呈立方体结构,大小均一;透皮实验显示,TASS-TGP LLCN凝胶的24 h累积透过量、渗透速率及皮肤滞留量均大于TASS-TGP普通凝胶。结论 TASS-TGP LLCN呈现促渗和皮肤贮库的双重效应,具有潜在的开发前景。     

Renoprotective Effect of Total Glucosides of Paeony (TGP) and Its Mechanism in Experimental Diabetes

Total glucosides of paeony (TGP), extracted from the root of Paeonia lactiflora pall, has been shown to have ant-inflammatory and antioxidative actions. The aims of this study were to elucidate the renoprotective effect of TGP and its mechanism in experimental diabetes. Streptozotocin-induced diabetic rats were treated with TGP for 8 weeks. Treatment with TGP at 50, 100, and 200 mg/kg significantly lowered 24-h urinary albumin excretion rate in diabetic rats. TGP treatment in all doses markedly attenuated glomerular volume, and treatment with TGP at 100 and 200 mg/kg markedly reduced indices for tubulointerstitial injury in diabetic rats. Western blot analysis showed that the expressions of 1α (IV) collagen, intercellular adhesion molecule (ICAM)-1, interleukin (IL)-1, tumor necrosis factor (TNF)-α, NF-κB p65, and 3-nitrotyrosine (3-NT) protein were increased in the kidneys of diabetic rats; the increases in these proteins were all dose-dependently and significantly inhibited by TGP treatment. The expression of nephrin protein was significantly reduced in the kidneys from diabetic rats and markedly increased by TGP treatment. The expression of transforming growth factor (TGF)-β1 protein in the kidney was also significantly increased in diabetic rats, which was significantly inhibited by treatment with TGP at all doses. Our data suggest that TGP treatment ameliorates early renal injury via the inhibition of expression of ICAM-1, IL-1, TNF-α, and 3-NT in the kidneys of diabetic rats.     

白芍总苷治疗口腔扁平苔藓临床疗效的Meta分析

目的：系统评价中成药白芍总苷胶囊治疗口腔扁平苔藓的有效性和安全性,为口腔扁平苔藓临床治疗用药提供参考。方法采用计算机检索Cochrane图书馆、PubMed和Embase外文数据库及中国生物医学文献数据库(CBM)、中国期刊全文数据库、万方数据库、维普数据库等中文数据库,收集白芍总苷治疗口腔扁平苔藓的临床病例对照研究的文献,通过评价质量并提取数据,再采用Rev Man 5.0统计软件进行Meta分析。结果共纳入9项研究文献,口腔扁平苔藓患者总计784例,其中,治疗组404例,对照组380例。Meta分析结果显示,白芍总苷治疗组的总有效率[OR=4.52,95%CI (3.00~6.81)]及显效率[OR=3.02,95%CI (2.17~4.19)]均明显高于对照组,且差异具有显著统计学意义(P<0.01)。结论从现有的临床证据来看,白芍总苷胶囊治疗口腔扁平苔藓具有比较确切的临床疗效。     

丹皮总甙和白芍总甙对自由基清除作用的影响

利用核黄素与光作用产生Ｏ２,Ｆｅｎｔｏｎ反应产生ＯＨ·,以及Ｈ２Ｏ２引起的红细胞氧化溶血的方法,研究了丹皮总甙（ＴＧＭ）和白芍总甙（ＴＧＰ）对Ｏ２及ＯＨ·的清除作用和对溶血反应的影响。结果ＴＧＭ和ＴＧＰ对Ｏ２产生５０％清除率时的浓度分别为２．３１ｍｇ／Ｌ和２．６４ｍｇ／Ｌ,对ＯＨ·产生５０％清除率时的浓度分别为２５．６９ｍｇ／Ｌ和１１７．９６ｍｇ／Ｌ,抑制Ｈ２Ｏ２引起溶血反应的ＩＣ５０分别是０．９４ｍｇ／Ｌ和１．４１ｍｇ／Ｌ。结果表明ＴＧＭ和ＴＧＰ对自由基有清除作用,并能抑制Ｈ２Ｏ２引起的溶血反应,且ＴＧＭ的作用强于ＴＧＰ。     

白芍总苷联合雷公藤多苷治疗类风湿关节炎增效减毒临床疗效观察

犤目的犦观察白芍总苷(TGP)联合雷公藤多苷治疗类风湿关节炎增效减毒临床疗效。犤方法犦将60例类风湿关节炎(RA)患者随机分为联合治疗组30例及雷公藤组30例,比较两组临床疗效及肝损伤发生情况。犤结果犦联合治疗组与雷公藤组临床总有效率分别为90.00%、66.67%,有显著性差异(P<0.05);联合治疗组治疗后ALT明显低于雷公藤组,有显著性差异(P<0.05)犤结论犦TGP联合雷公藤治疗RA具有增效减毒作用。     

Enhanced expression of hyaluronic acid in osteoarthritis-affected knee-cartilage chondrocytes during three-dimensional in vitro culture in a hyaluronic-acid-retaining polymer scaffold

BackgroundChondrocyte transplantation to address cartilage damage is an established solution. Because hyaluronic acid (HA) is an essential component for homeostasis of the cartilage, in order to arrive at methodologies to utilize its advantages in cell-based therapies, we compared the HA retention capability of a thermoreversible gelation polymer scaffold-based environment (3D-TGP) with conventional in vitro cell culture methodologies.MethodsChondrocytes derived from osteoarthritis-affected knee joint cartilage of elderly patients were used and accomplished in three phases. In Phase I, the levels of HA secreted by chondrocytes were measured in culture supernatant. In Phase II, retention capacity of externally added HA was quantified indirectly by measuring the HA released in culture supernatant, and in Phase III, the expression of CD44 on cells was analysed by immunohistochemistry.ResultsIn Phase I, the average HA in the 3D supernatant was 3% that of 2D. In phase II, 80% of externally added HA was detected in the 2D on day 7, while in 3D-TGP, only 0.1% was released until day 21. In Phase III, 2D yielded individual cells that started degenerating from the third week; in 3D-TGP cells grew for a longer duration, formed a tissue-like architecture with extracellular matrix with significantly intense staining of CD44 than 2D.ConclusionThe capability of the 3D-TGP culture environment to retain HA and support chondrocytes to grow with a tissue-like architecture expressing higher HA content is considered advantageous as it serves as an in vitro culture platform that enables tissue engineering of cartilage tissue with native hyaline phenotype and higher HA expression. The in vitro environment being conducive, based on this data, we also recommend that the TGP be tried as an encapsulation material in clinical studies of chondrocyte implantation for optimal clinical outcome.     

白芍总苷对动脉粥样硬化大鼠血流动力学和血液流变学的影响

[目的] 研究白芍总苷（TGP）对动脉粥样硬化大鼠血流动力学和血液流变学的影响并初步探讨其作用机制。[方法] 用高脂饲料喂养结合腹腔注射维生素D3（VD3）的方法建立大鼠动脉粥样硬化（AS）模型,造模过程分别同步灌胃给予TGP[50、100、200 mg/（kg·d）]和辛伐他汀（SV）,1.8 mg/（kg·d）,共12周,并设模型组和正常对照组。采用苏木精-伊红（HE）染色法观察主动脉形态结构改变并进行病变分级;测定血液流变学指标、血流动力学指标、血清中血脂指标。[结果] 较模型组,TGP干预组大鼠主动脉病理性形态结构改变呈不同程度改善,其中TGP[100、200 mg/（kg·d）]组病变分级显着降低、血液流变学指标[全血黏度（高切、中切、低切）、血浆黏度、红细胞压积、血小板黏附率]均显着降低、血流动力学指标[心室内压最大上升速率（lv+dp/dtmax）显着升高、心室内压达峰时间（t-dp/dtmax）显着缩短]、血清中总胆固醇（TC）、甘油三酯（TG）、低密度脂蛋白（LDL-C）含量显着降低,TGP 200 mg/（kg·d）组高密度脂蛋白（HDL-C）显着升高,差异均具有统计学意义（P<0.05,P<0.01）.[结论] TGP可能通过改善血液流变学和血液动力学而对动脉粥样硬化具有一定的保护作用。