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Biomedical subjects

J L Burn

Publications and source records attributed to J L Burn.

17 recordsLinked to original sources
PubMed1985

Renal function in diabetes mellitus.

Glomerular filtration rate, day and night-time albumin excretion, and blood pressure were estimated in 83 children with diabetes mellitus and compared with measures of glycaemic control, age, and duration of disease. Careful attention was paid to definition of normal values in age matched controls. The glomerular filtration rate was greater than normal, and correlated with duration of disease, but not with albumin excretion or blood pressure. Daytime albumin excretion correlated with duration of disease and glycosylated haemoglobin, but not with age, glomerular filtration rate, or blood pressure. Night-time albumin excretion was significantly raised and correlated with duration of disease, glycosylated haemoglobin, mean blood sugar concentration, and M value but not with age, glomerular filtration rate, or blood pressure. Diastolic blood pressure was significantly raised but was not correlated with any other measured variable. We have confirmed abnormalities of renal function in a children's diabetic clinic. The measurement of overnight albumin excretion rates may provide a sensitive early indicator of renal damage.

Adolescent↗
PubMed1984

Continuous subcutaneous insulin infusion in diabetes mellitus. A year's prospective trial.

Thirteen children aged between 8 and 16 years were entered into a 12 month prospective trial comparing continuous subcutaneous insulin infusion with intensified conventional treatment. Two of seven children on insulin infusion withdrew after eight and nine weeks, and three of six children on conventional treatment withdrew after four to eight weeks. Withdrawals in both groups were related to dissatisfaction with the techniques. The group on insulin infusion treatment achieved a mean plasma glucose of 9.8 mmol/l (176.4 mg/100 ml), a median M value of 50 mmol/l (900 mg/100 ml) and a mean glycosylated haemoglobin of 9.1% during the year. This represents a significant improvement compared with the previous values, and also when compared with the conventional treatment group whose trial values of a mean plasma glucose of 15.5 mmol/l (279 mg/100 ml), median M value of 167 mmol/l (3006 mg/100 ml), and glycosylated haemoglobin of 10.4% were not significantly different from those before the trial. Two children on insulin infusion developed subcutaneous abscesses in the early months. There was an increased incidence of diabetic ketoacidosis in this group, but no difference in the incidence of serious hypoglycaemia between the two groups. The children reported improved well-being when using insulin infusion and continued with the technique after the trial finished. Insulin infusion offers an acceptable means of improving glycaemic control for some diabetic children.

Adolescent↗
PubMed1984

Urinary albumin excretion in school children.

Concentrations of albumin were measured by an enzyme linked immunoassay in 24 hour urine collections (divided into day and night-time samples) from 183 boys and 191 girls aged 4 to 16 years. The 24 hour albumin excretion rate and day and night-time albumin excretion rates all increased with age in both girls and boys. Albumin excretion during the day exceeded that at night in both girls and boys. Albumin excretion rates were higher in girls than boys during the day but there was no significant difference at night-time. The urinary albumin creatinine ratio showed no change with age, but was greater in girls than boys during the day and at night, and was also greater during the day than at night in both sexes. Graphs of normal values of albumin excretion rates and albumin creatinine ratios are provided.

Adolescent↗
PubMed1979

Progressive hypogammaglobulinaemia in a child born to a mother with Hodgkin's disease.

A young woman developed Hodgkin's disease (nodular sclerosis) in pregnancy and gave birth to a boy who developed common variable immunodeficiency. Initially there was normal IgG with low IgA and IgM, and antibody deficiency. IgG levels fell progressively over 4 years. Cellular immunity was normal. We suggest that this is a further family with immune deficiency presenting with common variable immunodeficiency and lymphoid malignancy.

Adult↗
PubMed1975

Heredity in primary endocardial fibroelastosis.

Twenty-six cases of endocardial fibroelastosis were collected from three hospitals in Manchester over a ten-year period. Nine cases occurred in 4 families and these are discussed in detail. X-linked recessive inheritance seems likely in one family in which two probable female carriers had subarachnoid haemorrhages. In a second family an apparently normal man produced two children with endocardial fibroelastosis by different mothers suggesting autosomal dominant inheritance with incomplete penetrance. Autosomal recessive inheritance may be involved in the remaining two families but this was not associated with consanguinity. Genetic heterogeneity is evident in endocardial fibroelastosis and the majority of cases occur sporadically. An accurate family history is therefore necessary but it is difficult to give precise recurrence risks in sporadic cases.

Cardiomegaly↗
PubMed1972

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