Reported is the case of identical twin girls whose neonatal anemia (fatal in one case) was found to be due to Kell (a minor blood group) incompatibility. (DB)

Evaluated were antibody responses to a potent protein antigen biophage ox 174 in 17 institutionalized Down Syndrome adolescents and six mentally retarded control Ss with normal karotype. (CL)

Measured were the free erthrocyte protoporphyrin levels (a blood component) in 29 Ss with alpha thalassemia (a hereditary anemis), 19 Ss with iron deficiency anemia, and 24 normal control Ss. (DB)

Urinanalysis was performed on 24-hour samples of 11 iron deficient children (1 to 13 years of age) to determine levels of monoamine oxidase (an enzyme). (DB)

Examined were 55 children with adenosine deaminase enzyme deficiency and combined immunodeficiency disease, characterized by severe infections in early life. (CL)

Serum of five children ages 1 to 19 months with congenital pure red cell aplasia (incomplete or defective development of red blood cells) was injected in normal mice to determine possible inhibition of red blood cell formulating stimulants. (CL)

Examined for malignant hyperpyrexia (extremely high fever) were serum creatine phosphokinase (enzyme) levels of 27 children from 1-to 17-years-old with Noonan syndrome which is characterized by webbed neck, short stature and low set ears. (CL)

In an attempt to improve the identification of the asymptomatic carrier of classic phenylketonuria (PKU) 59 male and female normal control Ss were differentiated from 18 males and females heterozgous for PKU. (DB)

Studied were three unrelated infants with distal renal tubular acidosis (a condition characterized by an inability to acidify the urine to minimal pH levels resulting in the loss of bicarbonates). (DB)

Prenatal monitoring for metachromatic leukodystrophy (a fatal inherited metabolic disorder) suggested that the determination of levels of cerebroside sulfatase in the amniotic fluid helped in the prenatal detection of this disorder. (DB)