Author:
Nakatsuka Yoshinari,Murase Kimihiko,Sonomura Kazuhiro,Tabara Yasuharu,Nagasaki Tadao,Hamada Satoshi,Matsumoto Takeshi,Minami Takuma,Kanai Osamu,Takeyama Hirofumi,Sunadome Hironobu,Takahashi Naomi,Nakamoto Isuzu,Tanizawa Kiminobu,Handa Tomohiro,Sato Taka-Aki,Komenami Naoko,Wakamura Tomoko,Morita Satoshi,Takeuchi Osamu,Nakayama Takeo,Hirai Toyohiro,Kamatani Yoichiro,Matsuda Fumihiko,Chin Kazuo
Abstract
AbstractSleep disordered breathing (SDB), mainly obstructive sleep apnea (OSA), constitutes a major health problem due to the large number of patients. Intermittent hypoxia caused by SDB induces alterations in metabolic function. Nevertheless, metabolites characteristic for SDB are largely unknown. In this study, we performed gas chromatography-mass spectrometry-based targeted metabolome analysis using data from The Nagahama Study (n = 6373). SDB-related metabolites were defined based on their variable importance score in orthogonal partial least squares discriminant analysis and fold changes in normalized peak-intensity levels between moderate-severe SDB patients and participants without SDB. We identified 20 metabolites as SDB-related, and interestingly, these metabolites were frequently included in pathways related to fructose. Multivariate analysis revealed that moderate-severe SDB was a significant factor for increased plasma fructose levels (β = 0.210, P = 0.006, generalized linear model) even after the adjustment of confounding factors. We further investigated changes in plasma fructose levels after continuous positive airway pressure (CPAP) treatment using samples from patients with OSA (n = 60) diagnosed by polysomnography at Kyoto University Hospital, and found that patients with marked hypoxemia exhibited prominent hyperfructosemia and their plasma fructose levels lowered after CPAP treatment. These data suggest that hyperfructosemia is the abnormality characteristic to SDB, which can be reduced by CPAP treatment.
Funder
Mitsubishi Foundation
Daiwa Securities Health Foundation
Sumitomo Foundation
Takeda Medical Research Foundation
Intractable Respiratory Diseases and Pulmonary Hypertension Research Group from the Ministry of Health, Labor and Welfare of Japan
Research Foundation for Healthy Aging
Health, Labour and Welfare Sciences Research Grants, Research on Region Medical
Grant-in-Aid for Scientific Research from the Ministry of Education, Culture, Sports, Science and Technology in Japan
Japan Agency for Medical Research and Development
Publisher
Springer Science and Business Media LLC