地芝丸对D-半乳糖衰老小鼠表皮角蛋白K19、水通道蛋白AQP3及皮肤组织形态学结构的影响研究

目的:观察地芝丸对D-半乳糖衰老小鼠水通道蛋白AQP3、角蛋白K19、以及皮肤组织形态学结构的影响,探讨地芝丸延缓皮肤衰老的作用机制。方法:以D-半乳糖衰老小鼠为研究对象,测定超氧化物歧化酶(SOD)、丙二醛(MDA)的含量,以及HE染色法观察各组小鼠皮肤组织形态学结构改变。应用酶联免疫吸附法(ELISA)检测小鼠皮肤AQP3的含量,免疫荧光法检测表皮角蛋白K19的表达。结果:与空白对照组比较,模型组皮肤表皮层和真皮层明显变薄;SOD、AQP3含量降低、K19表达下调、MDA含量升高。与模型组相比较,地芝丸剂量依赖地使SOD、AQP3明显增高,MDA降低,使VE组、地芝丸各组小鼠皮肤组织形态学结构有所改善,表皮层和真皮层厚度增厚,K19表达上调,尤以27.3 g/kg组最显著。结论:地芝丸通过改善皮肤组织形态学结构,促进D-半乳糖衰老小鼠表皮AQP3、K19的表达,起到延缓皮肤衰老作用。

地芝丸治疗面部皮肤老化的疗效观察

目的观察地芝丸治疗面部皮肤老化的疗效。方法入选的60例患者,随机分为2组即治疗组与对照组。治疗组内服地芝丸联合强脉冲光(IPL)治疗,对照组仅予IPL治疗。分别于治疗前、8周、12周使用VISIA皮肤测试分析仪对受试者面部皮肤的皱紋、毛孔、红色区、色素四大皮肤老化相关指标进行定量分析和评价。结果 8周时,治疗组较对照组的皱纹、红色区、色素指标改善明显(P<0.05)。12周时,治疗组较对照组的皱纹、毛孔、红色区、色素四项指标的改善明显(P<0.05)。结论地芝丸治疗皮肤老化具有一定的疗效。

香港芝麻价格猛涨

据外贸部门信息,由于去年内地芝麻欠收,湖北、河南、四川、河北等地供港芝麻量下降,导致香港芝麻价格猛升。目前,黄白水洗芝麻的价格已由去年的每吨六百二十至六百三十美元,上升到一千二百美元,升幅为一倍。

Effect of Microclimatic Modification on Growth and Yield of Sesame （Sesamum indicum L.） in a Semi-Desert Region of Northern Sudan

An investigation was carried out in the semi- desert region of northern Sudan, during 2000, to study the influence of different micrometeorological parameters on growth and yield of sesame under alley cropping system. Sesame, cv. Kenana-2, was grown in 6-m wide alleys formed by 3 year old Acacia ampliceps and Acacia stenophylla. Air temperature, relative humidity, wind speed, solar energy and shade behaviour were measured throughout the growing season. Irrigation was measured by water meter and soil moisture by gravimetric sampling at depths of 15, 30, 45 and 60 cm, in alley cropping and control plots. Sesame was evaluated for growth and yield performance in southern, central and northern parts of each alley. The results showed substantial reduction in wind runs, solar radiation and air temperature, while relative humidity was increased under alley conditions. Soil moisture content, especially in the upper 045 cm soil depth, was much higher in alley cropped plots than in the control plots. A. stenophylla resulted in the highest saving of irrigation water and considerably increased （40%） sesame seed yield. In contrast, sesame seed yield was reduced by 46% under A. ampliceps-alley cropping. Competition for light and water were highly responsible for variation in sesame seed yield in the different zones of the alley. A. stenophylla tree is, therefore, recommended in an alley cropping system in the semi-desert region of northern Sudan for its superiority in optimizing radiation and saving of irrigation water.

我的祛暑好“伴侣”

还是上小学的时候,有年夏天,我被送到乡下姑姑家过暑假。夏日的炎热让人夜晚难以入睡,心烦得很,我哭着叫着,要姑姑马上送我回城。半夜时分,姑姑也没有办法,搓着手直念叨：＂这可咋办？这可咋办？＂姑父默不作声,出了门,不一会儿,捧回来一个长溜溜的瓜,他递到我手里，安慰我说：“宝贝，这是冬瓜，你摸摸凉不凉？”

利水消肿说冬瓜

冬瓜是一年生攀援草本葫芦科植物冬瓜的果实,亦名东瓜、枕瓜、白瓜、地芝,全国各地均有栽培。冬瓜味淡爽口,独具清香,现在全年均有供应,夏季食用更佳,而且是利水消肿之良药。现代药理研究证实,冬瓜中含有蛋白、糖、钙、磷、钾、钠、铁等,还含有胡萝卜素、硫胺素、核黄素、烟酸和维生素C等多种维生素以及粗纤维。虾仁炒冬瓜以及冬瓜汤、冬瓜盅等,清淡而清香,是烦热口渴、厌食油腻、胃口不开或患有水肿胀满以及疖肿痱子等热性疾病时最受大众喜欢的蔬菜。