[The function of polymorphonucleocytes: chemotaxis, the nitroblue tetrazolium test and myeloperoxidases in healthy children and adults]. / Estudio de la función de los polimorfonucleares: quimiotaxis, "test" del nitroazul de tetrazolio y mieloperoxidasas en niños y adultos sanos.

Polymorphonuclear leucocytes function--chemotaxis, NBT and myeloperoxidase--was studied in 31 children and 62 healthy adults. Chemotaxis was superior in adults (p less than 0.001), while the other test had a similar behaviour. Results show that there is a dissociation on the maturity of different functions of the neutrophil, and it is necessary to dispose of age-matched controls to evaluate chemotaxis in children.

[Study of serum C3 and C4 fractions in patients with glucose-6-phosphate dehydrogenase deficiency (author's transl)]. / Estudio del C3 y C4 en el déficit en glucosa-6-fosfato deshidrogenasa.

Activity of serum C3 and C4 fractions have been measured in 35 individuals with glucose-6-phosphate dehydrogenase (G6PD) deficiency and various clinical manifestations. Determination of serum complement was carried out in six cases during an abrupt hemolytic phase; the remaining 29 patients were asymptomatic at the time of laboratory test, but the past history revealed acute hemolytic syndroe in 11 cases. There were no statistical significant differences between C3 and C4 fraction levels of patients with G6PD deficiency and those corresponding to a group of 30 normal controls. Immunoallergic theories causing hemolytic episodes in patients with G6PD deficiency are discussed.