Effect of Purple Sweet Potato Leaves Consumption on the Modulation of the Immune Response in Basketball Players during the Training Period

籃球員在訓練期間紅甘藷葉的攝取對其免疫調節之影響

Wen-Hsin Chang ； Chiao-Ming Chen ； Shene-Pin Hu ； Nai-Wen Kan ； Chun-Chieh Chiu ； Jen-Fang Liu

《Asia Pacific Journal of Clinical Nutrition》 16卷4期 (2007/12) Pp. 609-615

https://doi.org/10.6133/apjcn.2007.16.4.04

摘要

本研究的目的是探討籃球員在訓練期間攝取紅甘藷葉（PSPLs），對其體內免疫狀態之調節效應。15位籃球校隊的男女隊員納入本研究。7週的研究包括調整（第一週）、PSPLs飲食（每日攝取200 g的PSPLs)（第2－3週）、排空（第4－5週）及控制飲食（低多酚類且調整其類胡蘿蔔素含量與PSPLs一致）（第6－7週）。採集受試者空腹血液、清晨唾液及24小時尿液以進行評估分析。研究結果顯示，與控制組相比，攝食PSPLs二週後，受試者血漿中多酚類濃度顯著增加。此外，血中淋巴細胞增殖反應、自然殺手細胞毒殺力和細胞激素－IFN-γ的分泌量也皆顯著增加；然而唾液中免疫球蛋白A（sIgA）的濃度及IL-2及IL-4的分泌量於二期間並無顯著差異。綜合上述，籃球員於訓練期間攝取多酚類含量高的PSPLs飲食2週後，具有調節體內免疫反應的效用。

關鍵字

紅甘藷葉 ； 多酚類 ； 籃球 ； 訓練 ； 免疫狀態

並列摘要

The aim of this study was to evaluate the effect of the consumption of purple sweet potato leaves (PSPLs) on the immune response and the modulation of that response in 15 basketball players during a training period. They completed the 7-week study consisted of a run-in period (week 1), a PSPLs diet (200 g PSPLs/d; weeks 2, 3), a washout period (weeks 4, 5), and a control diet (low polyphenols content and carotenoid content adjusted to the same level as that of PSPLs diet; weeks 6 and 7). Blood, urine, and saliva samples were collected for biochemical analysis. The results showed that the plasma polyphenols concentration increased significantly in the PSPLs period. Compared with the control period, the PSPLs consumption produced a significant increase in the proliferation responsiveness of peripheral blood mononuclear cells (PBMC), cytotoxic activity of nature killer (NK) cells, and secretion of interferon (IFN)-γ. However, no significant increase in the secretion of salivary immunoglobulin A (sIgA), interleukin (IL)-2, or interleukin-4 was observed after PSPLs consumption. In conclusion, consumption of a PSPLs diet for 2 weeks can modulate the immune response of basketball players during a training period.

並列關鍵字

purple sweet potato leaves ； polyphenols ； basketball ； training ； immune response