抄録
1. Blood platelet count of infants showed an increase in the case of mothers with negative Arakawa's reaction, being 435, 384 and 301 thousand thrombocytes in the Arakawa-negative group, in the group of intermediate Arakawa's reaction, and in the normally Arakawa-positive group respectively.
2. Red cell count was 5, 140 and 5, 130 thousand cells in the strongly Arakawa-positive group and in the group of intermediate Arakawa's reaction, while a slight anemia was seen in the Arakawa-negative group showing 4, 930 thousand on an average.
3. In the cases in which infants and their mothers had not been taking vitamin B preparations, platelet count was within normal (317 thousands) in the Arakawa-positive group, but an increase of platelet count (397 thousands) was seen in the cases with intermediate Arakawa's reaction, and the maximal average count (458 thousands) occurred in the Arakawa-negative group.
4. In the cases in which infants and/or their mothers had been taking vitamin B preparations, blood platelet count was a moderate surplus over the normal limit even in the Arakawa-negative group.
