查询词典 oxidative

Their antioxidant activities were investigated and compared with ascidian oil V by an oxidative stability instrument. The results show that components dihydrotanshinone and tanshinone Ⅰ have strong antioxidant activity at 0.01% addition.

以海鞘油脂为底物，用OSI仪测定了几种丹参酮类化合物的抗氧化活性，结果表明二氢丹参酮和丹参酮Ⅰ是很好的油脂抗氧化剂，添加量为0.01%时，就可使油脂的氧化稳定性提高3~4倍。

Similarly NAC was also protective in a bleomycin fibrosis model. Moreover, amiodarone, a benzofuran compound with redoxcycling properties induces oxidative lung injury.

同时NAC也对由博来霉素所介导的纤维化模型有保护作用；此外，胺碘酮和苯基呋喃类化学物，具有氧化还原环，可介导肺的氧化损害。

IV. The total synthesis of dehydrodiconiferyl alcohol and its dihydro-derivative The benzofuran skeleton was constructed by chemically oxidative couplingstarting from vanillin, then selective reduction with LiAI〓/〓 andhydrogenation in the presence of Pd-C followed reduction with LiAl〓respectively, to give dehydrodiconideryl alcohol and its dihydro-derivative, usefulin treating and preventing digestive system disorders, esp.

四、Dehydrodiconiferyl alcohol及其二氢衍生物的全合成以香草醛为起始原料，用化学氧化法一步建立氢化苯骈呋喃骨架，LiAlH〓／〓选择性还原以及催化加氢还原接着〓还原，分别合成了对预防和治疗消化系统疾病尤其是胃溃疡有显著效果的Dehydrodiconiferylalcohol及其二氢衍生物。

Some new lignans of dibenzocycloheptadiene and benzofuran analogues were first synthesized successfully by intramolecular nonphenolic oxidative coupling and rearrangement of the 1,4-biaryl-2,3-dimethyl-2,3epoxide substituted butanes with DDQ in TFA.

以DDQ为非酚氧化偶合试剂与1，4-二芳基-2，3-环氧类化合物进行分子内的非酚氧化偶合反应，首次合成了二苯骈环庚二烯类和苯骈呋喃类的新型木脂素，其结构由不同光谱和X-单晶衍射所确证。

Six novel dihydrobenzofuran and benzofuran neolignans compounds(1～6) were synthesized by knoevenagel reactiton,esterfication, biomimetic oxidative coupling ,DDQ dehydrogenation,reduction and hydrolysis with 4-hydroxybenzaldehyde and malonic acid as starting material.

以对羟基苯甲醛和丙二酸为原料，经Knoevenagel缩合反应，酯化、仿生氧化偶联、DDQ脱氢、还原和水解等反应步骤，合成了6种未见文献报道的苯并二氢呋喃新木脂素和苯并呋喃新木脂素类化合物(1~6)。

Bilberry extract: preserves vision and reduces oxidative damage to the eyes.

越桔提取物：保护视力，减少氧化损伤眼睛。

Several studies have identified genes that play important roles in stress tolerance and virulence. For example, genes involved in osmotic stress tolerance, acid and alkaline tolerance, oxidative stress tolerance, extreme temperature tolerance, and bile salt tolerance have all been implicated in the virulence of L.

在压力存在的情况下能启动一些基因的表达，以增强细菌对环境的耐受性，这些基因包括与耐受渗透压、酸碱性环境、氧化、极端温度和宿主体内胆碱等环境压力相关的基因。

Objective To evaluate the effect and mechanism of bombesin on hepatic oxidative stress in rats with biliary tract obstruction.

目的 探讨蛙皮素对胆道梗阻大鼠肝脏氧化应激的影响。

Biliverdin can reduce to bilirubin. They are both anti-oxidant, protecting cell against oxidative damage.

但是目前国内外对HO的研究多集中在成人方面或动物实验阶段，尚未见到有关HO-CO系统与小于胎龄儿发病关系研究的相关报道。

This response is characterized by stabilization of the mitochondrion and increased mitochondrial biogenesis, resulting in attenuation of oxidative c-Jun N-terminal kinase activation.

这个反应的特征在于线粒体的稳定性和线粒体合成的增加，从而导致具有氧化特性的c-Jun氨基末端激酶活化的衰减。

Warden: That's a beautiful dog, but don't bring her again.

那是条漂亮的狗，但是不要再把她带来了。

You get up in the morning – no hangover!

你第二天早上起来的时候—不会宿醉！