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蜂胶对糖尿病的疗效与作用机理探析 总被引:7,自引:0,他引:7
蜂胶的化学成分复杂,具有广泛的生物学活性,近年来关于蜂胶防治糖尿病的报道较多,本文介绍了蜂胶降血糖、防治糖尿病的疗效,重点阐述了蜂胶防治糖尿病的作用机理:降血糖、修复受损胰岛、增强免疫功能、抗菌消炎、清除自由基、改善血液循环、保肝、供能、常量和微量元素等综合作用的结果。 相似文献
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壳聚糖的化学名为β-1,4-2-氨基-2-脱氧-D-葡萄糖胺,是自然界存在的唯一的碱性多糖。它具有提高机体的免疫力、抗菌消炎、促进伤口愈合、抗酸、抗溃疡、降血脂、降血糖、降血压及直接抑制肿瘤细胞等多种作用。本文就壳聚糖的免疫调节作用及其机理进行综述。 相似文献
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全蚕粉(SP)降血糖的作用效果及其机理的研究 总被引:36,自引:11,他引:25
研究了全蚕粉及其对实验鼠降血糖的作用。初步检测发现全蚕粉中含有三碘甲腺原氨酸 (T3) ,不含甲状腺素T4。试验证明全蚕粉具有显著降血糖的效果。添加 0 1%的全蚕粉饲喂高血糖实验鼠 4周 ,摄食后 1h和 2h的血糖值分别降低了 13 81% (p <0 0 5 )和 11 0 7%。T淋巴细胞转化率提高 35 % (p <0 0 1)。实验还对全蚕粉降血糖的作用机理进行了探讨 ,认为全蚕粉的降血糖作用可能与抑制小肠粘膜α 麦芽糖苷酶活性有关 相似文献
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马齿苋多糖对四氧嘧啶糖尿病小白鼠的降糖作用 总被引:1,自引:0,他引:1
马齿苋(Portulaca oleracea L.)是一种药食同源植物,是马齿苋科一年生草本植物马齿苋的干燥地上全草,别名为五行草、酸苋、猪母菜、地马菜、马蛇子菜、长寿菜等,具有抗糖尿病、抗细菌、抗病毒、抗衰老、提高免疫力等功能.马齿苋富含α-不饱和脂肪酸、β-胡萝卜素、黄酮、香豆素、单萜糖苷、生物碱、多糖等化学成分.马齿苋多糖(POP)具有增强机体免疫力、抗肿瘤、抗氧化等作用,而有关降血糖作用未见相关报道,为深入研究其发挥药理作用的有效成分及降血糖效果,本试验研究了马齿苋多糖对四氧嘧啶糖尿病小白鼠的降血糖作用,现介绍如下. 相似文献
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中药桑枝化学成分及药理活性研究进展 总被引:3,自引:0,他引:3
桑枝是一种重要的药用植物资源,一直作为民间常用中药。本文概述了桑枝的药用化学成分或提取物及其药理活性研究进展,桑枝所含主要化学成分有黄酮类化合物、生物碱、多糖和香豆精类化合物,尚含有氨基酸、有机酸、挥发油及多种维生素等,桑枝具有降血糖血脂、免疫、抗炎等功效,具有广阔的药物开发前景。 相似文献
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Munerato MS Duarte JM Pereira GT Marques JA 《Veterinary clinical pathology / American Society for Veterinary Clinical Pathology》2010,39(4):454-463
Background: Alterations in cellular and chemical constituents in blood are indicators of physical or chemical restraint in deer. Objectives: The aim of this study was to determine the effects of physical and chemical restraint on hematologic and biochemical analytes in captive brown brocket deer (Mazama gouazoubira). Methods: Six adult deer were physically restrained and randomly anesthetized in a crossover design using 3 protocols (P). In P1, anesthesia was induced directly with isoflurane using a face mask and was maintained with isoflurane delivered by endotracheal tube. In P2, oral premedication with midazolam was followed 1 hour later by induction and maintenance of anesthesia with isoflurane, as in P1. In P3, intravenous anesthesia with a combination of ketamine, xylazine, and atropine was followed by anesthesia with isoflurane, as in P1. Blood was collected immediately after physical restraint (T0) and during anesthesia at 20‐minute intervals (T15, T35, and T55). Hematologic and biochemical constituents were determined using manual methods or automated analyzers, with cortisol measured by enzyme immunoassay. Results: During physical restraint, following food and water restriction, significant hemoconcentration, increased WBC count, and lower cortisol concentration were observed compared with results at T15, T35, and T55. During anesthesia, lymphocyte count was lower in P2 than P1, urea concentration was decreased at T15 using P2, and plasma glucose concentration was increased after T0 (P<.01). Among the anesthetic protocols, there was a trend for decreased cortisol concentration using P2. Conclusions: Physical restraint and anesthesia affect some blood constituents in captive brown brocket deer, and midazolam premedication may modify the intensity of the stress response. 相似文献
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1-脱氧野尻霉素(DNJ)的研究进展 总被引:18,自引:0,他引:18
1-脱氧野尻霉素(DNJ)是桑叶中的一种生物碱,它也存在于其他植物或细菌中,DNJ作为α-葡萄糖苷酶的抑制剂,具有降血糖,抗病毒,抗肿瘤转移等作用。另外,DNJ还是α-葡萄糖淀粉酶的有效的抑制剂。DNJ作为载体,可用于高纯度麦芽糖的酶合成,本文综述DNJ的化学结构。来源及用途。 相似文献
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When evaluating the effects of yeast culture (Saccharomyces cerevisiae1026) supplied with or without a vitamin premix and mineral bioplexes on some intermediates and end-products involved in the synthesis of milk constituents in 30 early-lactation Black and White Lowland cows, no significant differences were found in the glucose level, mineral contents and enzyme activities of the blood serum. The effect of yeast culture on the availability of minerals for milk synthesis depended upon the dynamics of degradation of mineral bioplexes in the rumen and the cows' mineral status. The insignificant increase found in blood total protein content and the simultaneous small differences in blood urea nitrogen (BUN) and milk urea nitrogen (MUN) values in cows supplied with the yeast culture were probably associated with a high ammonia incorporation into microbial protein in the rumen, which increased protein supply for milk protein synthesis and decreased the nitrogen loss. 相似文献
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Reference blood chemical values in ostriches (Struthio camelus) 总被引:1,自引:0,他引:1
A Levy B Perelman T Waner M van Grevenbroek C van Creveld R Yagil 《American journal of veterinary research》1989,50(9):1548-1550
Reference blood chemical values were determined for 65 male and 61 female ostriches (Struthio camelus) 1 month to 72 months of age. Plasma values of glucose, total protein, triglycerides, cholesterol, uric acid, urea, bilirubin, creatinine, osmolality, electrolytes, and enzyme activity were determined. In general, differences in various values appeared mainly among age groups and less so between sexes. Older ostriches had lower plasma glucose values and enzyme activity than did younger ostriches. High plasma sodium and chloride concentrations in young ostriches correlated with high plasma osmolalities. Plasma calcium values were lower in laying ostriches. Uric acid concentrations were markedly higher than were urea concentrations in all ostriches. 相似文献