超高齢者の免疫遺伝学的研究　両親の家族歴と百寿者のヒト白血球型（ＨＬＡ‐ＤＲ）出現頻度の関連性

DOI Web Site PubMed 被引用文献2件 参考文献17件

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タイトル別名
  • Family History and the Frequency of Human Leukocyte Antigen (HLA-DR) in Centenarians.
  • チョウ コウレイシャ ノ メンエキ イデンガクテキ ケンキュウ リョウシン ノ
  • 両親の家族歴と百寿者のヒト白血球型 (HLA-DR) 出現頻度の関連性

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There are a few reports that associate several loci of the human luekocyte antigen (HLA) with longevity, such as DR1 which is significantly frequent in the very old, especially in Okinawa centenarians. In cntrast DR9 is decreased. This report investigates 87 healthy Okinawan centenarians and 148 healthy Okinawan controls examined since 1987 with HLA phenotyping and family history questionnaires. The mean age in centenarians was 101.6 years, and that of controls was 66.4. We inquired the age and the cause of death of the parents of the subjects. Subjects whose parent's deaths were by suicide, homicide, accident, war or due to war trauma, were excluded and only those resulting from illness or natural causes were included. The relation between age of death of parents and DR types were studied. Compared to controls, DR1 was significantly increased in the centenarians (p=0.036, RR 4.239), and DR8 was decreased (p=0.012, RR=0.412). When the mean age of death of parents for each DR group and that of total was determined, the mean death age of those with DR9 was significantly lower than the mean of the total (p<0.05). More over, when the frequency rate of the DR types were compared with the parents' death age, that of DR9 decreased as the age of death increased. It is suggested that some loci of HLA-DR relate to longevity and some genetic protection against immunerelated diseases contributes to long-lived lineage.

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