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1.
平贝母雪梨配伍抗炎作用研究   总被引:1,自引:0,他引:1  
目的:观察平贝母水提物、雪花梨汁以及平贝雪梨饮(BLY)的抗炎作用及其作用机制。方法:通过二甲苯导致小鼠耳肿胀实验、鸡蛋清致大鼠足趾肿胀实验及对小鼠毛细血管通透性的影响分别观察平贝母水提物、雪花梨及BLY的抗炎作用,同时通过测定小鼠炎性渗出物中前列腺素(PGE2)和丙二醛(MDA)含量研究三者的抗炎机制。结果:三者均能减轻二甲苯所致的耳廓肿胀;能降低小鼠毛细血管通透性;能减轻鸡蛋清致大鼠足趾肿胀;能抑制小鼠炎性渗出物中PGE2和MDA含量的升高,且梨汁和BLY均与PGE2和MDA含量呈量效关系。结论:平贝母水提物和雪花梨汁都具有抗炎作用,同等剂量的BLY作用效果比平贝母水提物和雪花梨汁抗炎作用之和更为显著,三者对PGE2和MDA含量升高具有负调节作用,提示其抗炎作用与抗PGE2和MDA含量升高有关。  相似文献
2.
Pleurotus eryngii, a popular edible mushroom in Taiwan, is usually cultivated using sawdust medium packing bags through several procedures including culture medium confection, bagging and sterilization, spawn inoculation, fostering mycelia, full growth of mycelia, and inducing fruiting body formation. In this study, P. eryngii commercial products harvested at the 10th, 12th and 15th days after inducing the fruiting body formation were extracted with ethanol, individually. Through determination of chemical composition, antioxidant and anti-inflammatory properties of these extracts, the optimal harvest time of P. eryngii fruiting bodies with higher functional attributes was revealed. The earlier harvested sample extracts had higher effects for scavenging 2,2-diphenyl-1-picrylhydrazyl radicals, reducing power, chelating power, and β-carotene bleaching inhibition, as well as down-regulating lipopolysaccharide-stimulated nitric oxide, prostaglandin E2, inducible nitric oxide synthase, and cyclooxygenase-2 expression in RAW264.7 macrophages. These functional responses were closely related to levels of phytochemical components including phenolic acids, flavonoids, tocopherols and carotenoids.  相似文献
3.
This study investigated 27 selected terpenoid compounds, including 8 monoterpenoids, 7 sesqui-terpenoids, 3 di-terpenoids, 8 tri-terpenoids, and 1 tetra-terpenoid, for their Th1/Th2 immunomodulatory potential using mouse primary splenocytes. Changes in Th1 cytokines, including interleukin (IL)-2 and interferon (IFN)-γ, and Th2 cytokines, including IL-4, IL-5 and IL-10, secreted by terpenoid-treated splenocytes were measured using the ELISA method. The results showed that triptolide, a diterpenoid, was most cytotoxic, reflecting an IC50 value of 46 nM. Eucalyptol, limonene, linalool, thymol, parthenolide, andrographolide, 18β-glycyrrhetinic acid, lupeol, ursolic acid and β-sitosterol showed a strong Th2-inclination and anti-inflammation potential in vitro. In addition, (−)-trans-caryophyllene, oridonin, triptolide, diosgenin, betulinic acid, escin, and β-sitosterol treatments significantly inhibited both IL-2 (Th1) and IL-10 (Th2) cytokine production at the same time, suggesting that these terpenoid compounds have an anti-inflammation potential through the inhibition of T-cell immune responses. Diosgenin treatments significantly increased IFN-γ secretion levels using mouse splenocytes, suggesting that diosgenin may be useful in treating a viral infection through the stimulation of IFN-γ production. Menthone, farnesol and oridonin treatments did not markedly increase IL-10/IL-2 (Th2/Th1) cytokine secretion ratios, suggesting that menthone, farnesol and oridonin may have a relative Th1-inclination property, compared to the other selected terpenoid compounds. The relative Th1-inclination property of menthone, farnesol and oridonin may be applied to improve Th2-skewed allergic diseases.  相似文献
4.
C-反应蛋白(CRP)、IL-6与炎症的产生密切相关.运用大量的临床研究数据揭示了适量饮酒具有抗炎作用,其作用主要是通过降低炎症因子C-反应蛋白(CRP)、IL-6,抑制肿瘤坏死因子(TNF-α)和增强抗炎因子IL-10等发挥作用.结果分析表明,由于个体差异,选择健康饮酒方式,并且适量饮酒才能真正发挥酒的保健作用.  相似文献
5.
Cold aqueous extraction of basidiocarps (fruiting bodies) of the edible mushroom Lentinus edodes (shiitake) gave rise to a heteropolysaccharide, whose chemical structure, antinociceptive and anti-inflammatory properties were determined. Its chemical structure was based on monosaccharide composition, methylation analysis, and NMR spectroscopy (1H, 13C, HSQC, HSQC-TOCSY, HSQC-NOESY, and coupled HMQC). It was found to be a fucomannogalactan with a main chain of (1 → 6)-linked α-d-galactopyranosyl units, partially substituted at O-2 by single-unit β-d-Manp or α-l-Fucp side chains. The polysaccharide produced a marked and dose-related effect when assessed against acetic acid-induced visceral nociception. Prevention of peritoneal capillary permeability and leukocyte infiltration caused by the acetic acid was similar in potency and effectiveness.  相似文献
6.
This study aimed to screen lactic acid bacteria (LAB) for their anti-inflammatory activity by using RAW264.7 cells and dextran sulfate sodium (DSS)-induced colitis. In all, 192 LAB strains were isolated from healthy human feces, of which 8 strains showed excellent nitric oxide (NO) inhibitory activity. Peptidoglycan extracts of these 8 LAB strains were subjected to NO assay, Western blot, and ELISA. Among the 8 tested strains, extracts of 4 strains significantly inhibited the production of NO, related enzyme activities such as inducible nitric oxide synthase and cyclooxygenase 2, and key cytokines such as tumor necrosis factor-α and IL-6 in RAW264.7 cells. The 4 strains belonged to Lactobacillus (CAU1054, CAU1055, CAU1064, and CAU1301). Oral administration of the 4 strains inhibited DSS-induced body weight loss, colon shortening, and colon damage in ICR mice. The colon tissue of the mice treated with Lactobacillus plantarum strain CAU1055 had significantly reduced levels of inducible nitric oxide synthase, cyclooxygenase 2, tumor necrosis factor-α, and IL-6. We found that strain CAU1055 could be used as a candidate probiotic strain for the prevention and treatment of inflammatory bowel disease. Further studies are warranted to confirm the mechanisms of interaction between peptidoglycan of L. plantarum strain CAU1055 and upstream cellular signaling mediators.  相似文献
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8.
对麸皮多糖发酵制备工艺进行优化,并对其抗炎活性进行研究。以酿酒酵母以及枯草芽孢杆菌为发酵菌种固态发酵制备麸皮多糖,通过响应面法优化发酵工艺条件(发酵温度、发酵时间、总接种量和料水比),并研究其对敌草快攻毒大鼠血浆和肝脏组织中TNF-α、IL-6、IL-2和IL-1β炎性因子水平的影响。结果表明,1)麸皮多糖最佳固态发酵工艺条件为发酵温度35.4℃、发酵时间52.7 h、总接种量10.4%、料水比1∶1.16(g/mL),该条件下麸皮多糖产量为130.21 mg/g;2)腹腔注射敌草快显著升高大鼠血浆和肝脏组织中TNF-α、IL-6、IL-2和IL-1β炎性因子水平(P0.05);3)在敌草快引起的应激状态下,灌胃麦麸多糖可以显著降低大鼠血浆和肝脏组织中TNF-α、IL-6、IL-2和IL-1β炎性因子水平(P0.05),并且随着灌服剂量的升高,大鼠血浆和肝脏组织中炎性因子水平可恢复到正常生理状态。综上所述,以响应面法优化后发酵工艺制备的麸皮多糖有一定的抗炎作用。  相似文献
9.
Kaempferol (KF) is the most abundant polyphenol in tea, fruits, vegetables, and beans. However, little is known about its in vivo anti‐inflammatory efficacy and mechanisms of action. To study these, several acute mouse inflammatory and nociceptive models, including gastritis, pancreatitis, and abdominal pain were employed. Kaempferol was shown to attenuate the expansion of inflammatory lesions seen in ethanol (EtOH)/HCl‐ and aspirin‐induced gastritis, LPS/caerulein (CA) triggered pancreatitis, and acetic acid‐induced writhing.  相似文献
10.
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