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I.序論
生体に於けるいろいろな生活現象にATPが極めて重要な役割を演じている事は,1928年LohomannによつてATPが発見されて以来,多くの基礎的研究を経て解明されると共にその応用面でも近時臨床医学の各分野で活発な研究がなされつつある。
耳科領域に於ける臨床応用は1958年Maggioが老人性難聴に試みたことに始まり,我国でも河田氏1)等を初めとして,諸家2)3)4)5)6)の報告がなされている。これらの文献を検討すると,その投与法が殆んどATP,ブドウ糖及びV. B1の混合静脈内注射法である。この事は,内耳機能の生化学的研究から内耳の主エネルギー発生系が,解糖,TCA Cycle,酸化的燐酸化及び呼吸と云う一連の代謝系をとりこの際酸素が律速因子,糖が二次的因子になるとの小出氏の説7)及び脳に於ける酸素消費量と循環血液量の増加はATPとブドウ糖との共存によつて促進されるとの相沢氏の研究,更にはTCA Cycleの糖代謝にV. B1系が必要な事実に基くものと考えられる。
Effects on the use of ATP either alone or in combination with other agents directed for similar purpose in treatment of inner ear and the 8th nerve disturbances were made points of clinical observation. Different methods were tried. ATP alone, ATP with 10mgm of vitamin B1 given intravenously. ATP used with pantothenic acid, Tiochtan or chondroitin sulfate by peroral administration, ATP with steroid hormone and ATP combined with some other agents. The methods were tried in 38 cases.
Results of these trials differed with the combination in which ATP was associated with. It seemed to be the most effective when ATP was combined with steroid hormone and in such a combination the latter agent may be reduced to 1/5 the usual dosage, when used alone for similar treatment, which will still retain their effectivity. The next best combination appeared to be in that which was combined with pantothenic acid. A-TP alone was rather ineffective.
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