Association of the longevity-associated mitochondrial DNA 5178 A/C polymorphism with serum protein fraction levels in healthy Japanese women.
Mitochondrial DNA 5178 adenine/cytosine (mt5178 A/C) polymorphism was reported to be associated with longevity and susceptibility to adult-onset diseases in Japanese. To examine whether mt5178 A/C genotypes are associated with serum protein fraction profiles, we genotyped 461 healthy Japanese individuals, and studied the relationship of mt5178 A/C genotypes to both proportion and levels of serum protein fraction. The mt5178 A/C was genotyped using polymerase chain reaction-restriction fragment length polymorphism method. The alpha-1, alpha-2, and beta globulin proportions in females carrying mt5178A were significantly higher than those in females carrying mt5178C (P=0.002, 0.006, and 0.008, respectively). Moreover, the alpha-1, alpha-2, and beta globulin levels in females carrying mt5178A were significantly higher than those in females carrying mt5178C (P=0.001, 0.002, 0.018, respectively). This difference in globulin fraction level between the two genotypes was more evident in premenopausal females than in postmenopausal females. However, no such difference was found in males. These results provide the first evidence that the mt5178 A/C polymorphism may influence the serum protein fraction levels of the healthy Japanese women.
Kokaze
Akatsuki
A
Department of Public Health, Kyorin University School of Medicine, 6-20-2, Shinkawa, Mitaka-shi, Tokyo 181-8611, Japan. dawn@kyorin-u.ac.jp
Ishikawa
Mamoru
M
Matsunaga
Naomi
N
Yoshida
Masao
M
Sekine
Yasuko
Y
Teruya
Koji
K
Takeda
Nobuo
N
Satoh
Masao
M
Sumiya
Yu
Y
Uchida
Yoshiko
Y
Takashima
Yutaka
Y
D000328:Adult; D000368:Aged; D001798:Blood Proteins / Q000032:analysis*; D004272:DNA, Mitochondrial / Q000235:genetics*; D005260:Female; D006801:Humans; D008136:Longevity / Q000235:genetics*; D008297:Male; D008875:Middle Aged; D011110:Polymorphism, Genetic; D017698:Postmenopause / Q000097:blood; D017697:Premenopause / Q000097:blood
D001798:Blood Proteins; D004272:DNA, Mitochondrial