污水處理設(shè)備 污泥處理設(shè)備 水處理過濾器 軟化水設(shè)備/除鹽設(shè)備 純凈水設(shè)備 消毒設(shè)備|加藥設(shè)備 供水/儲水/集水/排水/輔助 水處理膜 過濾器濾芯 水處理濾料 水處理劑 水處理填料 其它水處理設(shè)備
上海酶聯(lián)生物研究所
上海酶聯(lián)生物研究所
閱讀：886發(fā)布時間：2010-4-9
*昆明動物研究所賴仞研究員與*上海藥物研究所林東海研究員領(lǐng)導(dǎo)的研究團(tuán)隊在多肽類抗氧化系統(tǒng)研究方面再獲新進(jìn)展。
2009年，該研究團(tuán)隊提出了基因編碼的多肽類抗氧化系統(tǒng)，并命名為“第三套”抗氧化系統(tǒng)。在“第三套”抗氧化系統(tǒng)工作的基礎(chǔ)上，該研究團(tuán)隊從多肽類抗氧化系統(tǒng)對自由基的清除效率、速度以及作用機理進(jìn)行了深入研究，結(jié)果表明抗氧化多肽可以非?？焖俚厍宄?0%以上人造自由基（小于兩秒鐘），其速度是目前商業(yè)用抗氧化劑（如2，6-二叔丁基-4-甲基*和*）的2-4倍?？寡趸饔脵C制研究表明，抗氧化多肽序列中的還原性半*對快速地清除自由基起著關(guān)鍵作用。
該研究結(jié)果發(fā)表在美國《自由基生物醫(yī)學(xué)聯(lián)合會會刊》。
原文出處：
Free Radical Biology and Medicine doi:10.1016/j.freeradbiomed.2010.01.036
Frog skins keep redox homeostasis by antioxidant peptides with rapid radical scavenging ability
Cunbao Liua, b, 1, Jing Hongb, c, 1, Hailong Yanga, b, 1, Jing Wua, b, Dongying Maa, b, Dongsheng Lia, Donghai Linc, , and Ren Laia, d
a Biotoxin Unit of the Key Laboratory of Animal Models and Human Disease Mechanisms, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming 650223, Yunnan, China
b Graduate School, Chinese Academy of Sciences, Beijing, China
c Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
d Key Laboratory of Microbiological Engineering of the Agricultural Environment, Ministry of Agriculture, Life Sciences College, Nanjing Agricultural University, Nanjing, Jiangsu, China
The question of how amphibians can protect themselves from reactive oxygen species when exposed to the sun in an oxygen-rich atmosphere is important and interesting, not only from an evolutionary viewpoint, but also as a primer for researchers interested in mammalian skin biology, in which such peptide systems for antioxidant defense are not well studied. The identification of an antioxidant peptide named antioxidin-RL from frog （Odorrana livida） skin in this report supports the idea that a peptide antioxidant system may be a widespread antioxidant strategy among amphibian skins. Its ability to eliminate most of the 2,2′-azino-bis（3-ethylbenzthiazoline-6-sulfonic acid） radical tested within 2 s, which is much faster than the commercial antioxidant factor butylated hydroxytoluene, suggests that it has a potentially large impact on redox homeostasis in amphibian skins. Cys10 is proven to be responsible for its rapid radical scavenging function and tyrosines take part in the binding of antioxidin-RL to radicals according to our nuclear magnetic resonance assay.
商鋪：http://www.hg1112.cn/st32881/
主營產(chǎn)品：ELISA試劑盒，人ELISA試劑盒，小鼠ELISA試劑盒，豚鼠ELISA試劑盒，兔ELISA試劑盒，羊ELISA試劑盒，牛ELISA試劑盒，雞ELISA試劑盒，鴨ELISA試劑盒，植物ELISA試劑盒
環(huán)保在線 設(shè)計制作，未經(jīng)允許翻錄必究 .? ? ?
請輸入賬號
請輸入密碼
請輸驗證碼
請輸入你感興趣的產(chǎn)品
請簡單描述您的需求
請選擇省份