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Senpuku H, Miyazaki H, Yoshihara A, Yoneda S, Narisawa N, Kawarai T, Nakagawa N, Miyachi M, Tada A, Yoshida G, Shimada M, Ohashi M, Nishimuta M, Kimura Y, Yoshitake Y. CD56(dim)CD16(high) and CD56(bright)CD16(-) cell percentages associated with maximum knee extensor strength and incidence of death in elderly. SPRINGERPLUS 2016; 5:244. [PMID: 27027597 PMCID: PMC4771652 DOI: 10.1186/s40064-016-1884-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/30/2015] [Accepted: 02/16/2016] [Indexed: 11/20/2022]
Abstract
Physical fitness is an indicator of systemic well-being in humans. Little is known about the role of physical fitness for maintaining systemic health in the elderly. Here, we study elderly subjects to determine the relationships between physical fitness and CD56 and CD16 surface NK cell markers on peripheral blood lymphocytes, as well as to analyze the relationship between the surface markers and incidence of death. We selected 253 independent elderly subjects (122 female; 131 male) who were 79–80 years old. Subjects having a higher proportion of CD56dimCD16high within CD56+CD16+ cells, or ration of CD56dimCD16high and CD56dimCD16− cells had a significant positive correlation with maximum bilateral knee extensor strength/weight (kg) (r = 0.425; P < 0.0001 or r = 0.323; P < 0.0001). In contrast, an increased proportion of CD56brightCD16− cells within lymphocyte significantly negatively correlated with the maximum bilateral knee extensor strength/weight (kg) (r = −0.290; P = 0.0004); and these subjects had a significantly lower mortality during the 5 years following measurement of death. Therefore, we found that a synergistic effect of the right and left leg muscle strength was associated with proportion of matured NK and NKT cells and induced a low proportion of CD56brightCD16− cells within lymphocyte. Moreover, the low proportion of CD56brightCD16− cells was associated with incidence of death. In conclusion, measurements of physical fitness, the proportion of CD56dimCD16high within CD56+CD16+ cells, the ratio of CD56dimCD56high and CD56dimCD16− cells, and the proportion of CD56brightC16− cells in lymphocytes are important indicators to check elderly health.
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Affiliation(s)
- Hidenobu Senpuku
- Department of Bacteriology, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640 Japan
| | - Hideo Miyazaki
- Department of Oral Health Science, Graduate School of Medical and Dental Science, Niigata University, Niigata, Niigata 950-2181 Japan
| | - Akihiro Yoshihara
- Department of Oral Health Science, Graduate School of Medical and Dental Science, Niigata University, Niigata, Niigata 950-2181 Japan
| | - Saori Yoneda
- Department of Bacteriology, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640 Japan
| | - Naoki Narisawa
- Department of Bacteriology, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640 Japan
| | - Taketo Kawarai
- Department of Bacteriology, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640 Japan
| | - Naoki Nakagawa
- Laboratory of Physical Education, Sports Management Research Center, School of Information-oriented Management, SANNO University, Setagarya-ku, Tokyo 158-8630 Japan
| | - Motohiko Miyachi
- Department of Health Promotion and Exercise, National Institute of Health and Nutrition, Shinjuku-ku, Tokyo 162-8640 Japan
| | - Akio Tada
- Department of Health Science, Hyogo University, Kakogawa, Hyogo 675-0101 Japan
| | - Goichiro Yoshida
- National Institute of Fitness and Sports in Kanoya, Kanoya, Kagoshima 891-2311 Japan
| | - Mieko Shimada
- Laboratory of Physical Education, Chiba College of Health Science, Chiba, Chiba 261-0014 Japan
| | - Masaharu Ohashi
- Faculty of Education and Human Science Physical Education, Health and Sport Science, Institute of Humanities, Social Science and Education, Niigata University, Niigata, Niigata 950-2181 Japan
| | - Mamoru Nishimuta
- Laboratory of Physical Education, Chiba College of Health Science, Chiba, Chiba 261-0014 Japan
| | - Yasuo Kimura
- Faculty of Culture and Education, Saga University, Saga, Saga 840-8502 Japan
| | - Yutaka Yoshitake
- National Institute of Fitness and Sports in Kanoya, Kanoya, Kagoshima 891-2311 Japan
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