| Project/Area Number |
19590563
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Laboratory medicine
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| Research Institution | Kumamoto University |
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Principal Investigator |
OKUMIYA Toshika Kumamoto University, 大学院・生命科学研究部, 准教授 (50284435)
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| Co-Investigator(Kenkyū-buntansha) |
棚瀬 純男 熊本大学, 医学部, 教授 (20112401)
櫻庭 均 明治薬科大学, 薬学部, 教授 (60114493)
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| Co-Investigator(Renkei-kenkyūsha) |
TANASE Sumio 熊本大学, 大学院・生命科学研究部, 教授 (20112401)
SAKURABA Hitoshi 明治薬科大学, 教授 (60114493)
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| Research Collaborator |
REUSER Arnold JJ オランダ王国・エラスムス大学, 臨床遺伝学講座, 准教授
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| Project Period (FY) |
2007 – 2010
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| Project Status |
Completed (Fiscal Year 2010)
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| Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2010: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2009: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2008: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2007: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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| Keywords | リソソーム病 / ポンペ病 / 酸性α-グルコシダーゼ / 新生児スクリーニング / 遺伝子多型 / 化学シャペロン / 小胞体関連分解 / II型糖原病 / 酸性マルターゼ / 新生児マススクリーニング / 血液濾紙 / アカルボース |
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| Research Abstract |
We demonstrated that the high frequency (3.3-3.9%) of acid α-glucosidase pseudodeficiency, c.[1726G>A ; 2065G>A] homozygote (AA homozygote), in Asian populations complicated newborn screening for glycogen storage disease type II on dried blood spots, since AA homozygotes have a considerably low enzyme activity. We have searched for a method to effectively eliminate hemoglobin in the reaction solution. Hemoglobin precipitation with barium hydroxide and zinc sulfate (Ba/Zn method) carried out after the enzyme reaction considerably enhances the fluorescence intensity. The Ba/Zn method greatly improved the separation between Japanese patients with Pompe disease and unaffected AA homozygotes in the assay on blood spots.
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