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Biomedical subjects

D M Allen

Publications and source records attributed to D M Allen.

At least 73 records · Page 4Linked to original sources

Emotional implications of primary familial hyperlipoproteinemia in childhood and adolescence.

To determine whether 43 patients and their 23 unaffected siblings were at increased risk for psychologic upset, 28 families of children being treated for primary familial hyperlipoproteinemia were studied. Nine fathers but no mothers had died of the disease. The families were interviewed for psychiatric assessment, and the parent(s) scored a questionnaire concerning eight behavioral factors. Male patients had significantly higher scores for impulsive hyperactive behavior than their male siblings. Fatherless female patients had the highest scores for perfectionism and the lowest scores for conduct problems and impulsive hyperactive behavior. Fatherless children scored lower for impulsive hyperactive behavior than children with fathers; fatherless male children were more anxious than fatherless female children. There were more significant differences in scores for children whose father was still alive vs those whose father had died than in scores for affected children vs unaffected siblings. Thus, the emotional impact of the premature death of an affected parent appears greater than that of having the disease. Therefore, one should be alert for changes in behavior in children with primary familial hyperlipoproteinemia when a parent dies of the disease and as the patients approach the age at which the parent died.

Adolescent↗

A non-barbital buffer for immunoelectrophoresis and zone electrophoresis in agarose gels.

We describe buffer for both immunoelectrophoresis and zone electrophoresis procedures in agarose gels, Tricine [N-tris(hydroxymethyl)methylglycine] and Tris [2-amino-2-(hydroxymethyl)-1,3-propanediol] being the main components. This buffer eliminates the procurement cost and inventory control associated with formulation of barbital buffers. We compare it with other common buffer formulations.

Barbital↗

Primary hyperlipoproteinemia in childhood and adolescence: identification and treatment of persons at risk for premature atherosclerosis.

Determination of serum cholesterol values in three populations of children and adolescents, totalling 4013 subjects aged 1 month to 20 years, revealed 16 cases of primary hyperbetalipoproteinemia (overall frequency, 1:251) and led to the detection of the disorder in 12 asymptomatic siblings. The upper limit of normal for serum cholesterol concentration was approximately 200 mg/dl at all ages studied. Dietary treatment was instituted in patients whose serum cholesterol value exceeded this limit and in whom a primary lipid defect was confirmed; the serum cholesterol value decreased in all patients who adhered to the diet. However, since the potential hazards and long-term results of dietary treatment, with or without drug therapy, in growing children are not known, such treatment should be reserved for affected children with a family history of premature atherosclerosis, and follow-up is essential.

Adolescent↗