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이문호,이필웅 대한핵의학회 1967 핵의학 분자영상 Vol.1 No.2
$quot;저자는 인공적으로 배양한 「두비니」구충의 유충 (filariform larva) 150마리를 (5일간격으로 3회분할투여) 각각 유충감염의 개왕력이 없는 건강한 성인남자로서 실험대상을 자원한 8예에게 경구투여하여 획득면역의 발전가능성을 관찰하는 동시에 각종 혈액검사성적과 59Fe를 사용한 각종 ferrokinetics를 측정하여 대조군 (10예)과 비교고찰하였으며 그 성적은 대략 다음과 같다. 1) 대조군의 혈액학적 검사소견에 비하여 감염군에서는 혈청철감소를 위시한 빈혈소견을 나타냈으며 혈액량에서는 감염군에서 적혈구량의 감소와 혈액량의 상대적 증가를 볼 수 있었다. 2) 59Fe를 사용한 ferrokinetics 성적을 보면 감염군의 혈장소실속도 (plasma iron disappearance time:P.I.D.)와 혈장철교체율 (plasma iron turnover:P.I.T.)은 모두 대조군에 비하여 단축 내지 감소되고 적혈구철이용률 (red cell iron utilization rate:R.C.I.U.)은 현저하게 증가되었고 적혈구철농도 (red cell iron conc:R.C.I.C.), 순환적혈구철 (circulating red cell iron:C.R.I.), 혈장철 「풀」(plasma iron pool:P.I.P.)은 모두 감소되는 반면 1일철 「풀」교체율 (daily iron pool turnover:D.I.P.T.)은 각각 증가되었$quot; In order to confirm whether acquired immunity or resistance can be developed by the repeated hookworm infections, the 150 mature actively moving filariform ancylostoma duodenale larvae obtained from the severe hookworm anemia patients were orally given to 8 healthy volunteers in three divided doses, 50 in each, at 5 day interval. Also the hematological changes as well as several ferrokinetics using (59)^Fe were done and were compared with 10 controls. The clinical symptoms and signs were checked every day for the first 3 weeks and then twice weekly until the end of the experiment. The appearance of the ova in the stool was examined by the formalin ether method and the ova was counted by the Stoll's method. The following laboratory tests were done: 1) Red blood cell count, venous blood hematocrit (micromethod), hemoglobin count (cyanomethemoglobin method) were checked every 5 to 7 day interval. 2) Plasma iron concentration (Barkan's modified method) was determined every 2 to 3 week interval. 3) Radioistope studies: a) Ferrokinetics: Huff et al and Bothwell's method were applied. Erythropoietic Index (% of normal)= Subject's turnover,100ml whole blood ×100 /Average normal turnover.100ml whole blood. b) Quantitative measurement of the gastrointestinal absorption of iron:Radioiron ((59)^Fe) balance method was applied. c) Determination of the plasma erythropoietin activity:Fried's method was applied. Following were the results: 1) The serum iron level was lower. The red cell voiume was decreased, but with relative increase of plasma volume. 2) The plasma iron disappearance time was accelerated and the plasma iron turnover rate was decreased. The red cell iron turnover rate was markedly increased, while all of the red cell iron concentration, circulating red cell iron, plasma iron pool were decreased. The daily iron pool turnover and red cell renewal rate were increased. 3) The erythropoietic index, erythropoietin activity and intestinal absorption of iron ((59)^Fe) were markedly increased. 4) The infectivity was 9.8±1.31% which ivas lower than that observed in the single infection. 5) From these observations, it is concluded that the hookworm anemia is essentially iron deficieny in its origin and some immunityacquisition is possible with repeated infections. $quot;
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