有關黃烷醇之介紹有些不了解..

Question

They are hampered in part by the artificial nature of in vitro studies, which include the exposure of cells to supraphysiologic concentrations of tea catechins and a lack of information on the bioavailability of tea flavanols. Limited data on the bioavailability of green and BT flavanols from green and BT solids or GT extract supplements (GTS) is available from separate laboratories (8, 9) but has not been investigated in the same study participants under conditions providing equal amounts of EGCG.
他們阻礙一部分由試管培養研究的人為本質，包括細胞暴露對兒茶素supraphysiologic集中和需要報告關於茶黃烷醇的生物相容性。關於綠茶的生物相容性和BT黃烷醇有限的數據從綠茶和BT固體或者GT萃取物補充(GTS)可得到從分開的實驗室，但未被調查在同樣研究參加者在提供相等的相當數量EGCG的情況下。

The in vitro antioxidant potential of different teas and tea flavanols has been evaluated extensively (3, 10). Data from in vivo studies investigating the antioxidant activity of tea showed mixed results depending on the methods applied and study design (11, 12). Most of the studies were either long term (3 wk) or short term (up to 3 h) and were conducted in fasting participants.
不同的茶和茶黃烷醇在試管中抗氧化潛能被廣泛地評估。數據從調查茶的抗氧化活性的體內研究中根據被運用的方法和研究設計顯示了混合結果。大多研究是長期限(3星期)或短期的(3 h)和被管理在禁食的參加者。

＊翻的不是很順，有點看不懂..可以幫我修改一下咩＊

Answer 1

They are hampered in part by the artificial nature of in vitro studies, which include the exposure of cells to supraphysiologic concentrations of tea catechins and a lack of information on the bioavailability of tea flavanols.
此障礙部份來自於試管實驗的人為性質﹐包括將細胞暴露於超量濃度的兒茶素中而且又不了解人體對兒茶素的吸收限度

Limited data on the bioavailability of green and BT flavanols from green and BT solids or GT extract supplements (GTS) is available from separate laboratories (8, 9)
雖然有兩個相互獨立的實驗室(8, 9) 可以提供關於人體從GT﹑BT或GTS吸收黃烷醇的吸收率的有限據數﹐

but has not been investigated in the same study participants under conditions providing equal amounts of EGCG.
但所有接受試驗者在攝取了等量的EGCG條件下的數據則沒有在同一個實驗中被調查。
The in vitro antioxidant potential of different teas and tea flavanols has
been evaluated extensively (3, 10).
不同的茶及黃烷醇的試管抗氧化能力實驗已經作了很多深入的研究(3, 10)。

Data from in vivo studies investigating the antioxidant activity of tea
showed mixed results depending on the methods applied and study design (11, 12).
調查茶的抗氧化活性的各種試管實驗數據依實驗方法與設計的不同(11, 12)而顯示出混亂的結論。

Most of the studies were either long term (3 wk) or short term (up to 3
h) and were conducted in fasting participants.
大多數這類的實驗期間不是太長(3星期)就是太短(3小時以下)﹐而且接受實驗者是在禁食(空腹)的情況下接受測試的。