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2010年1月25日 星期一

Glutathione (穀胱甘肽)


glutathione (
穀胱甘肽)

Entry Word: glutathione (
穀胱甘肽)
Version
1.00.03; Last Updated on [2014-04-16-AM-09-25-28]
Version 1.00.02; Last Updated on [2011-03-31-PM-02-54-12]
Version 1.00.01; Last Updated on [2010-01-25-PM-05-20-18]

glutathione
穀胱甘肽
glutathione (穀胱甘肽)
穀胱甘肽 (glutathione)

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2022-04-18
Glutathione (
穀胱甘肽)
Glutathione - Molecule of the Week
Archive; May 29, 2017 IR94 IR95
Source or References (
資訊來源或是參考的資訊):
https://www.acs.org/content/acs/en/molecule-of-the-week/archive/g/glutathione.html
Info cited on 2022-04-18-WD1 (
資訊引用於 中華民國111年西元2022418) by 湯偉晉 (WeiJin Tang)
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Glutathione (穀胱甘肽)
GSH is the reduced form of glutathione. GSSG is the oxidized form of glutathione.
GSH
還原型 穀胱甘肽。GSSG 氧化型 穀胱甘肽。

Glutathione is an important tripeptide present in significant concentrations in all tissues. It contains glutamic acid, cysteine, and glycine. What is unusual about the structure of glutathione (bottom figure in the left graphic; Compare it to a "normal" tripeptide of glu-cys-gly (top graphic).

Instead of the usual backbone, the carboxyl acid "side chain" is part of the backbone peptide structure. The normal carboxyl group is the so called side chain in this case.

The function of glutathione is to protect cells from oxidizing agents which might otherwise damage them. The oxidizing agents react with the -SH group of cysteine of the glutathione instead of doing damage elsewhere. Many foreign chemicals get attached to glutathione, which is really acting as a detoxifying agent.

Source:
http://www.elmhurst.edu/~chm/vchembook/564peptide.html

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GSH – The Reduced Form of Glutathione

GSH – The Reduced Form of Glutathione
Source (資訊來源):
Info cited on 2017-06-26-WD1 (資訊引用於 中華民國106626) by 湯偉晉 (WeiJin Tang)

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reduced form
還原型的
reduced form (
還原型的)
還原型的(reduced form)

oxidized form
氧化型的
oxidized form (
氧化型的)
氧化型的(oxidized form)

reduction reaction
還原反應
reduction reaction (
還原反應)
還原反應(reduction reaction)

oxidation reaction
氧化反應
oxidation reaction (
氧化反應)
氧化反應(oxidation reaction)

Chemistry
化學
Chemistry (
化學)
化學(Chemistry)

Physics
物理學
Physics (
物理學)
物理學(Physics)

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Glutathione (穀胱甘肽)


### Word Entry: Glutathione


(詞條:Glutathione)


Part of Speech: noun

(詞性:名詞)


Chinese Translation (中文翻譯):

穀胱甘肽(一種天然抗氧化劑,存在於細胞中,有助於保護細胞免受氧化壓力和自由基傷害)


Definition:

A tripeptide composed of glutamic acid, cysteine, and glycine, which acts as a major antioxidant in cells.

(由穀氨酸、半胱胺酸和甘胺酸組成的三肽,作為細胞中的主要抗氧化劑。)

It helps protect cells from oxidative stress, detoxifies harmful substances, and maintains the redox balance within the cell.

(幫助保護細胞免受氧化壓力,解毒有害物質,並維持細胞內的氧化還原平衡。)


Synonyms: GSH, cellular antioxidant, redox buffer.

(同義詞:GSH、細胞抗氧化劑、氧化還原緩衝劑。)


Antonyms: oxidative stress, free radicals.

(反義詞:氧化壓力、自由基。)


Example Sentences:


1. Glutathione levels decrease as people age, leading to increased oxidative stress.

   (隨著年齡增長,穀胱甘肽水平下降,導致氧化壓力增加。)


2. Supplements containing glutathione are believed to help detoxify the liver.

   (含有穀胱甘肽的補充劑被認為有助於肝臟解毒。)


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以上的文字內容由 諸葛先生(ChatGPT人工智能) 和 湯偉晉(WeiJin Tang)先生 共同協力完成。《湯偉晉編寫的英文字典》


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