Mycosporine - like amino acids ( MAAs ) strongly absorb UVR and protect cells against harmful UVR.
類菌孢素氨基酸(mycosporine-like aminoacids,間稱MAAs ) 存在于許多生物體內(nèi),對紫外輻射 ( UVR) 有較高的吸收能力,被認為有保護細胞、減少UVR損傷的功能.
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Objective To investigate the protective effect of nicotinamide on UVR - induced DNA damage.
目的探討煙酰胺對紫外線照射誘發(fā)DNA損傷的保護作用.
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Thus, risk evaluation of cataract induced by UVR is an urgent need.
因此, 亟待開展紫外線與白內(nèi)障的危險性評價.
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There was a 9.97 % ～67.1 % decrease in the population of LC after UVR.
表皮內(nèi)LC密度降低,細胞數(shù)較照射前減少9.7%～67.01%.
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The density and structure of epidermal LC returned to normal 8 days after cessation of UVR.
停止照射后8天LC密度及結(jié)構(gòu)基本復(fù)原.
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Conclusion nicotinamide is a perfect antagonist to UVR - induced DNA damage within fitting concentration.
結(jié)論適宜濃度的煙酰胺是抗紫外線照射誘發(fā)DNA損傷的拮 抗 劑.
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UVR and chemicals are two major regulating factors which affecting the melanin genesis or melanin transport.
雖然影響體內(nèi)黑素合成及運輸?shù)囊蛩胤倍?黑素合成機制也較為復(fù)雜,但紫外線和化學(xué)物質(zhì)是影響和調(diào)控膚色的兩大主要因素.
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Objective To investigate the relationship between personal exposure of ultraviolet radiation and ambient solar UVR.
目的 了解個體紫外線暴露劑量與環(huán)境紫外線劑量的關(guān)系.
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