Drosera rotundifolia and Drosera tokaiensis suppress the activation of HMC-1 human mast cells

Ethnopharmacological relevance

Several Northern Hemisphere Drosera species have been used in the therapy of respiratory tract infections as the traditional medicine Droserae Herba.

Aim of the study

To determine the anti-inflammatory effects of Drosera species and to investigate a substitute material for Droserae Herba, we examined the effect of extracts of Drosera rotundifolia, Drosera tokaiensis and Drosera spatulata on activated T cell membrane (aTc-m)-induced inflammatory gene expression in HMC-1 human mast cells.

Materials and methods

Drosera rotundifolia, Drosera spatulata and Drosera tokaiensis were collected in Japan. Herbs were extracted with 80% EtOH, and subsequently applied to OASIS HLB column. HMC-1 cells were treated with each Drosera column-adsorbed fraction for 15 min, and subsequently added to aTc-m and incubated for 16 h. Inflammatory gene and protein expressions were determined by DNA microarray, RT-PCR and Western blotting.

Results

Drosera rotundifolia and Drosera tokaiensis fractions, but not the Drosera spatulata fraction, suppressed inflammatory gene expression induced by aTc-m in HMC-1 cells.

Conclusions

Drosera rotundifolia and Drosera tokaiensis suppressed activation of HMC-1 cells induced by aTc-m. Since the Drosera tokaiensis fraction was more effective than the traditionally used Drosera rotundifolia, Drosera tokaiensis is a likely substitute as a source of Droserae Herba.     

半枝莲多糖抗补体活性研究

目的:研究半枝莲多糖的抗补体活性。方法:采用细胞溶血法。结果:半枝莲多糖抑制补体活性的经典途径和旁路途径的CH₅₀为(1.2±0.1)mg·mL^-1、AP₅₀为(4.9±0.2)mg·mL^-1。结论:半枝莲多糖有较好的抗补体活性。     

大孔吸附树脂 超声波辅助解吸附法纯化 淫羊藿中的总黄酮

目的:研究大孔吸附树脂-超声波辅助法分离和纯化淫羊藿中的总黄酮的工艺条件.方法:以总黄酮的吸附量和解吸率为考察指标,考察大孔吸附树脂对箭叶淫羊藿黄酮的吸附和解吸附条件.结果:采用D-101型大孔吸附树脂联合超声波辅助解吸附效果最好.通过纯化后,终产品中物总黄酮含量可达63.8%.结论:本法简单、可行,适合工业生产.     

反相高效液相色谱法测定墨旱莲中齐墩果酸的含量

目的:建立测定墨旱莲中齐墩果酸的含量的高效液相色谱法。方法:采用Phenomene×C18柱(4.6mm×250mm,5μm),流动相为乙腈-0.1%磷酸水溶液(90:10),检测波长210nm,流速1.0ml/min,柱温为30℃,进样量为20μl。结果:齐墩果酸在0.569-3.414μg内峰面积与其质量浓度有良好的线性关系(r=0.9999);平均加样回收率为98.40%(RSD=2.44%)。结论:该方法简便、快速、准确,可作为墨旱莲质量控制的一个有效方法。     

Herba Epimedii water extract elevates estrogen level and improves lipid metabolism in postmenopausal women

Hormone replacement therapy (HRT) can ameliorate lipid metabolism after menopause, but it is not suitable for long-term use because of serious side effects. Herba Epimedii is a widely used herbal medicine in many Asian countries, it potentially treats menopausal syndrome and its complications with few side effects and good curative effects. The study aimed to evaluate the effects of Herba Epimedii water extract on blood lipid and sex hormone levels. Ninety subjects were randomly divided into two groups: a trial group which received Herba Epimedii water extract and a control group which was administered an equal amount of water placebo. At the baseline and after 6 months of medication, serum estradiol (E(2)), progesterone (P), testosterone (T), total cholesterol (TC), triglyceride (TG), high density lipoprotein cholesterol (HDL-C) and low density lipoprotein cholesterol (LDL-C) concentrations were measured. The results indicated that Herba Epimedii water extract decreased the TC and TG levels (p < 0.01). Furthermore, Herba Epimedii water extract significantly increased the serum level of E(2) (p < 0.01) compared with the pre-treatment level. In conclusion, Herba Epimedii water extract produces its beneficial actions in postmenopausal women.     

淫羊藿提取物对去卵巢大鼠骨转换率增强的抑制作用

目的研究淫羊藿提取物对去卵巢大鼠骨转换的影响。方法取3月龄SD大鼠手术切除双侧卵巢,1个月后ig给予阳性药17β-雌二醇(2mg/kg)以及淫羊藿提取物混悬液(110mg/kg),连续给药3个月。采用全自动生化分析仪测定血清中钙(s-Ca)、磷(s-P)的量和碱性磷酸酶(ALP)的活性及尿中钙(u-Ca)、磷(u-P)和肌酐(Cr)的量。利用ELISA试剂盒测定尿脱氧吡啶酚(DPD)的量。取胫骨近端制成不脱钙骨切片进行骨组织形态计量学分析。结果与假手术组相比,去卵巢大鼠s-Ca、s-P没有变化,ALP活性增强,u-Ca排出显著升高,尿中DPD与Cr的比值(DPD/Cr)显著增加,子宫萎缩。骨小梁面积百分比降低,骨小梁间隙增加。ig给予雌二醇或淫羊藿提取物3个月,血清ALP活性降低,u-Ca排出量减少,尿中DPD/Cr降低,骨小梁增加,且骨小梁间隙减小。雌二醇组大鼠子宫增生,淫羊藿组大鼠子宫与模型组相比没有变化。结论淫羊藿提取物能够显著抑制由于雌激素缺乏引发的骨转换增强,调整骨形成和骨吸收的关系,对遏制去卵巢造成的骨质疏松有一定的作用,且长期服用对子宫没有刺激作用。     

九头狮子草对小鼠免疫功能的影响

目的：研究九头狮子草对小鼠免疫功能的影响。方法：采用小鼠碳廓清实验和血清溶血素测定法，观察九头狮子草对小鼠单核巨噬细胞吞噬功能、溶血素抗体生成的影响。结果：九头狮子草可激活小鼠网状内皮系统，增加小鼠血清溶血素含量。结论：九头狮子草具有一定增强机体免疫力的作用。     

灯盏细辛活性部位对神经细胞α7尼古丁受体表达的影响

目的：研究灯盏细辛活性部位对SH-SY5Y神经细胞中α7神经型尼古丁受体（nAChR）亚单位在蛋白质水平的表达以及对抗β-淀粉样蛋白的毒性作用。方法：灯盏细辛经乙醇提取、乙酸乙酯及正丁醇萃取、再以反相硅胶柱分离等方式得到极性部位,选取一定浓度的灯盏细辛提取物处理神经母细胞瘤细胞（SH-SY5Y）后,用Western blotting方法测定α7 nAChR蛋白水平的变化;再将能明显上调α7 nAChR蛋白水平的灯盏细辛提取物预处理SH-SY5Y细胞后,加入Aβ25-35处理,用比色法测定MTT还原率,观察灯盏细辛活性部位对细胞毒性的影响。结果：灯盏细辛醇提乙酸乙酯及正丁醇部位、以及该部位经反相硅胶柱分离的低极性部位均能显著上调α7 nAChR蛋白水平,并减弱β-淀粉样蛋白引起的细胞损伤。结论：灯盏细辛活性部位具有一定的神经保护作用,其机制之一可能与上调α7 nAChR有关。     

皮寒药质量标准初步研究

目的：对皮寒药药材质量标准进行初步研究。方法：研究皮寒药药材性状特征、粉末显微鉴别特征,并以皮寒药对照药材和β-谷甾醇对照品为对照,研究建立皮寒药药材的薄层鉴别方法;采用药典方法检查药材水分、灰分含量,并在浸出物测定方法学研究后,选择测定该药材水溶性浸出物（热浸法）含量。结果：建立了皮寒药药材性状和粉末显微鉴别特征以及...     

北细辛非挥发性化学成分的研究

目的：研究细辛的非挥发性有效成分。方法：对北细辛根和根茎的化学成分进行提取分离，所得化合物用光谱分析（ＩＲ、ＭＳ、１ＨＮＭＲ、１３ＣＮＭＲ）鉴定。结果：从乙醚提取物中分得３个化合物，鉴定为卡枯醇、１－细辛脂素和１－芝麻脂素。结论：１－芝麻脂素为首次从该植物中得到，已知它具有抗病毒、抗气管炎作用，故可认为是细辛的有效成分之一。