PMID- 30701003 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20220331 IS - 1918-3003 (Print) IS - 1918-3011 (Electronic) IS - 1918-3003 (Linking) VI - 11 IP - 2 DP - 2019 Feb TI - Assessment of Salivary Nitric Oxide Levels in Elite University Athletes in Japan: Findings From a Cross Sectional Study Design. PG - 114-120 LID - 10.14740/jocmr3670 [doi] AB - BACKGROUND: High-intensity exercise affects the level of salivary nitric oxide (NO) with an impact on oxidative stress such as a reactive nitrogen-oxide species. However, in athletes with high-intensity training, the relationship between salivary NO levels and oxidative stress is yet to be clear. Additionally, the association of salivary NO levels and the common health disorders of athletes is unknown. Thus, the aim of this cross-sectional study was to clarify the relationship between salivary NO levels and oxidative stress, and the health/medical disorders existing in elite class university athletes. METHODS: In 250 athletes (males, 151 and females, 99) from undergraduate levels of Japanese University, we investigated the relationship between levels of salivary NO and oxidative stress markers: derived reactive oxygen species (d-ROMs) and biological antioxidant potential (BAP), and also examined that whether salivary NO levels are associated with diseases. RESULTS: There were no significant association between the levels of salivary NO and oxidative stress markers (such as d-ROM and BAP). From the questionnaire, asthma was the most prevalent as evident from medical history of the athletes. Additionally, the salivary NO levels were higher (520 +/- 43 micromol/L vs. 375 +/- 13 micromol/L, P < 0.05) in the asthma group (n = 9) than in the non-asthma group (n = 241). We determined the optimal cut-off value (P = 0.019) of the salivary NO levels for asthma was 425 micromol/L, with a sensitivity of 88.9% and specificity of 61.8% (area under the curve (AUC), 0.73). CONCLUSIONS: Our results suggest that the high levels of salivary NO in trained university athletes in Japan may potentially predict asthma. And this salivary NO level is not associated with markers of oxidative stress and existing diseases in athletes studied here. FAU - Sone, Ryota AU - Sone R AD - Graduate School of Comprehensive Human Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8577, Japan. FAU - Matsuba, Kai AU - Matsuba K AD - Tsukuba Sports Medicine and Health Science Center, University of Tsukuba Hospital, 2-1-1 Amakubo, Tsukuba, Ibaraki 305-8576, Japan. FAU - Tahara, Rei AU - Tahara R AD - Sports Research and Development Core, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8577, Japan. FAU - Eda, Nobuhiko AU - Eda N AD - Faculty of Sports Sciences, Waseda University, 2-579-15 Mikajima, Tokorozawa, Saitama 359-1192, Japan. FAU - Kosaki, Keisei AU - Kosaki K AD - Faculty of Health and Sports Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8577, Japan. FAU - Jesmin, Subrina AU - Jesmin S AD - Faculty of Health and Sports Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8577, Japan. FAU - Miyakawa, Shumpei AU - Miyakawa S AD - Faculty of Health and Sports Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8577, Japan. FAU - Watanabe, Koichi AU - Watanabe K AD - Faculty of Health and Sports Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8577, Japan. LA - eng PT - Journal Article DEP - 20190105 PL - Canada TA - J Clin Med Res JT - Journal of clinical medicine research JID - 101538301 PMC - PMC6340678 OTO - NOTNLM OT - Asthma OT - Condition marker OT - Japanese athletes OT - Nitric oxide OT - Oxidative stress COIS- No potential conflict of interest was disclosed. EDAT- 2019/02/01 06:00 MHDA- 2019/02/01 06:01 PMCR- 2019/01/05 CRDT- 2019/02/01 06:00 PHST- 2018/10/22 00:00 [received] PHST- 2018/12/04 00:00 [accepted] PHST- 2019/02/01 06:00 [entrez] PHST- 2019/02/01 06:00 [pubmed] PHST- 2019/02/01 06:01 [medline] PHST- 2019/01/05 00:00 [pmc-release] AID - 10.14740/jocmr3670 [doi] PST - ppublish SO - J Clin Med Res. 2019 Feb;11(2):114-120. doi: 10.14740/jocmr3670. Epub 2019 Jan 5.