Effect of yogurt fermented with Lactococcus lactis subsp. cremoris FC on salivary secretory IgA levels in high school-student long-distance runners

Yayoi Gotoh; Hideki Kosaka; Chisato Aiso; Katsuhisa Yoshida; Tsukasa Motoyama; Mitsugi Motoyama; Toshio Suzuki

Return

Effect of yogurt fermented with Lactococcus lactis subsp. cremoris FC on salivary secretory IgA levels in high school-student long-distance runners

VernacularTitle:Lactococcus lactis subsp. cremoris FCで発酵したヨーグルトが高校陸上長距離選手の唾液中分泌型免疫グロブリンAの分泌に与える影響
Author: Yayoi GOTOH ¹ ; Hideki KOSAKA ¹ ; Chisato AISO ¹ ; Katsuhisa YOSHIDA ² ; Tsukasa MOTOYAMA ³ ; Mitsugi MOTOYAMA ⁴ ; Toshio SUZUKI ¹
Author Information

1. Fujicco Co., Ltd.
2. Wakayama-Kita High School
3. Department of Sport and Health Sciences, Faculty of Human Sciences, University of East Asia
4. Faculty Education, Wakayama University
Keywords: lactic acid bacteria; secretory immunoglobulin A; athlete
From:Japanese Journal of Physical Fitness and Sports Medicine 2019;68(6):407-414
CountryJapan
Language:Japanese
Abstract: In athletes, repeated intensive exercise is considered to depress the immune system. The purpose of this study was to investigate the effects of yogurt fermented with Lactococcus lactis subsp. cremoris FC (L. cremoris FC) on salivary secretory immunoglobulin A (SIgA) in long-distance runners (high school students) during a 5 day intensive training program. Fourteen subjects were divided into 2 groups: a yogurt fermented with L. cremoris FC intake group and a milk intake group (control group). Each subject consumed yogurt or milk for 5 days during the intensive training. Salivary samples were obtained on days 1 and 5, and SIgA secretion and cortisol levels were measured. In addition, the mood of each subject was evaluated using the Profile of Mood States (POMS) questionnaire. Our study suggested that L. cremoris FC intake increases SIgA secretion. In addition, there might be a significant suppression in the increase of salivary cortisol levels caused by exercise mainly, but there was no effect on mood. These results suggest that L. cremoris FC intake may have health benefits by enhancing oral immune function mediated by SIgA.