English Dictionary by WeiJin Tang (湯偉晉編寫的英文字典): hydrophilic antioxidant (親水性抗氧化劑)

hydrophilic antioxidant (親水性抗氧化劑)

與您剛才討論的內容相呼應，親水性抗氧化劑（Hydrophilic Antioxidants，亦稱為水溶性抗氧化劑） 存在於細胞質、細胞間隙以及皮膚角質層的水相部分中。它們通常是人體對抗氧化壓力的「第一道防線」。

以下是針對親水性抗氧化劑的詳細說明與逐句翻譯：

Vitamin C (ascorbic acid) is perhaps the most well-known hydrophilic antioxidant, essential for collagen synthesis and neutralizing free radicals in water-based environments.
(維生素 C（抗壞血酸）或許是最著名的親水性抗氧化劑，對於膠原蛋白合成以及在中和水基環境中的自由基至關重要。)
Glutathione (GSH) is a major intracellular antioxidant that plays a key role in detoxifying harmful compounds and maintaining the redox state of cells.
(穀胱甘肽 (GSH) 是一種主要的細胞內抗氧化劑，在有害化合物的解毒以及維持細胞氧化還原狀態中扮演關鍵角色。)
Uric acid, often found in the skin surface and blood, acts as a scavenger of singlet oxygen and hydroxyl radicals.
(尿酸通常存在於皮膚表面和血液中，作為單線態氧和羥自由基的清除劑。)

These molecules are highly soluble in water and are distributed throughout the aqueous compartments of the skin layers.
(這些分子高度溶於水，並分佈於整個皮膚層的水性區域中。)
They provide immediate protection by reacting with reactive oxygen species (ROS) before they can reach the lipid membranes.
(它們透過在活性氧 (ROS) 到達脂質膜之前與其反應，來提供即時的保護。)
Hydrophilic antioxidants such as Vitamin C can also regenerate oxidized Vitamin E, linking the water-soluble and fat-soluble defense systems.
(維生素 C 等親水性抗氧化劑還可以使被氧化的維生素 E 再生，從而將水溶性和脂溶性防禦系統聯繫起來。)

根據您之前提供的研究摘要：

Unlike lipophilic antioxidants, hydrophilic ones like vitamin C and glutathione exhibit a distinct concentration gradient in the stratum corneum.
(與親脂性抗氧化劑不同，維生素 C 和穀胱甘肽等親水性抗氧化劑在角質層中表現出明顯的濃度梯度。)
Their high susceptibility to ozone (O3) makes them sensitive biomarkers for environmental oxidative damage to the skin.
(它們對臭氧 ( $O_3$ ) 的高度敏感性，使其成為衡量環境氧化對皮膚損傷的敏感生物標記。)

親水性抗氧化劑就像是皮膚的「水性屏障」，負責捕捉那些試圖滲透進皮膚的水溶性污染物和自由基。

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Placeholder 湯偉晉編寫的英文字典

Placeholder 湯偉晉編寫的英文字典

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English Dictionary by WeiJin Tang (湯偉晉編寫的英文字典)