| Project/Area Number |
61570451
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| Research Category |
Grant-in-Aid for General Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Research Field |
Pediatrics
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| Research Institution | Nagoya University |
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Principal Investigator |
MATSUOKA Hiroshi NAGOYA UNIVERSITY, 医学部, 助手 (50157278)
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| Co-Investigator(Kenkyū-buntansha) |
KUROSAWA Yoshikazu FUJITA-GAKUEN HEALTH UNIVERSITY, Professor, 医学部, 教授 (10109259)
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| Project Period (FY) |
1986 – 1988
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| Project Status |
Completed (Fiscal Year 1988)
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| Budget Amount *help |
¥2,300,000 (Direct Cost: ¥2,300,000)
Fiscal Year 1988: ¥300,000 (Direct Cost: ¥300,000)
Fiscal Year 1987: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 1986: ¥1,400,000 (Direct Cost: ¥1,400,000)
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| Keywords | X-linked disease / Primary immunodeficiency disease / Bruton type agammaglobulinemia X-chromosome gene mapping / X染色体マッピング / DNA断片多形性 |
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| Research Abstract |
1. Nine DNA prodes were prepared from the phage library of human X-chromosome and mapped on human chromosome X.
2. Frequency of RFLPs of these probes was found to be very low, 0.1 or 0.2 %. this may reflect the character of X chromosome.
3. The linkage analysis of a family with Bruton-type agammaglobulinemia (XLA) using RFLPs showed that the significant linkage of a X-chromosome long-arm probe (DXS17;S21) to the disease locus for XLA. The other sixteen DNA prodes including DXS4;99-6 could not show the significant linkage.
4. The results of RFLPs analysis of this XLA family were not informative enough to identify the xla carrier.
5. We propose that the carrier status of XLA should be carefully diagnosed by using not only RFLPs analysis but also non-random X-chromosome inactivation in B lymphocytes of at-risk females in X-linked pedigree.
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