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H H van Gelderen

Publications and source records attributed to H H van Gelderen.

At least 19 recordsLinked to original sources

Subacute zinc deficiency in children with recurrent upper respiratory tract infection.

Serum, urine and hair zinc levels in 20 patients with recurrent upper respiratory tract infection are compared with those of age- and sex-matched controls. Lower hair zinc (1.44 vs 2.00 mmol/g hair, P = 0.004) and higher urinary zinc levels (2.2 vs 1.6 mmol/mol creatinine, P = 0.05) were found, but no difference in serum zinc. The patients had lower-normal height for age (SD-score 0.2 vs 0.7, P = 0.031), there was no difference in weight for height. No correlation was found between the zinc values and the duration of the complaints.

Child

Zinc in hair and urine of paediatric patients.

Zinc concentrations in hair and urine were measured in groups of children varying in one condition - short stature, or after prolonged upper respiratory infection, or during non-infectious diarrhea, or while on chemotherapy for acute lymphatic leukaemia and in healthy controls. As compared with controls, hair zinc was significantly low after respiratory infection (p less than 0.0001) and high in short stature (p less than 0.01). Urinary zinc was increased during initial chemotherapy (p less than 0.001) and diarrhea (p less than 0.02). It is shown that zinc deficiency occurs in one of the common symptoms in paediatric medicine, namely upper respiratory tract infection. The high overlap (34-88%) proves hair and urine zinc to be of no use for reliable individual diagnostic statements.

Child

The effect of large doses of ethinylestradiol on apolipoprotein levels in excessively tall prepubertal girls.

Seventeen constitutionally tall prepubertal girls, aged 10 to 14 years, were treated with large doses of ethinyl estradiol (EE) to reduce their final height. The serum concentration of cholesterol, triglyceride, and apolipoproteins before and after four to 17 months of treatment were compared with the same variables in a reference group, initially matched for bone age and height. In the patients, cholesterol rose by 24% (1.1 +/- 0.8 mmol/L), triglyceride by 105% (0.97 +/- 0.70 mmol/L), LDL apo B by 48% (27 +/- 19 mg/dL), apo A-I by 45% (62 +/- 17 mg/dL), and apo A-II by 21% (12 +/- 11 mg/dL). In the reference group, none of these variables changed significantly. The ratio of LDL apo B/apo A-I remained constant in both groups.

Adolescent

Skeletal maturation in the XY female syndrome.

The assessment of bone age in eleven prepuberal patients with XY-female syndrome shows that skeletal maturation in these patients follow a male pattern. This supports the concept of a factor on the Y chromosome regulating skeletal maturation in the first ten years of life. Tall stature does not seem to be a feature of this syndrome in childhood.

Androgen-Insensitivity Syndrome

[Hyperthyroxinemia without hyperthyroidism].

The various causes of persisting hyperthyroxinemia without hyperthyroidism are discussed after short case histories of an infant with hyperthyroxinemia due to TBG excess, discovered by newborn screening for congenital hypothyroidism and a girl with peripheral resistance to thyroid hormones disclosed by investigation of a small goiter. The differentiation of these various causes by thyroid function-tests is indicated. Though the anomalies leading to euthyroid hyperthyroxinemia are usually harmless their timely recognition, also in other members of the family, will prevent erroneous diagnosis and treatment of hyperthyroidism.

Child

HLA-DR antigens and phenotypes in Dutch coeliac children and their families.

In a study on the HLA-DR antigens and phenotypes in a series of Dutch coeliac children and their first-degree relatives, the B-cell antigens of 36 unrelated coeliac children, 110 first-degree relatives of 33 of them, and 201 controls were typed with the two-colour fluorescence test. The most frequent antigen was HLA-DR3 (69%), followed by DR7 (36%). The distribution of DR phenotypes showed that the most frequent was DR3/other DR (25%), followed by DR3/DR7 (17%), DR3/DR4 (14%), and DR3/DR3 (14%). However, due to the frequency of certain antigens in the controls, only phenotypes DR3/DR3 (relative risk = 6.2), DR3/DR7 (relative risk = 6.4), and DR3/DR4 (relative risk = 6.2) were significantly associated with CD. The family study confirmed the segregation of the disease with phenotypes DR3/DR3 and DR3/DR7. The present results show that the association between CD and phenotypes DR3/DR3 and DR3/DR7 is not an exclusive characteristic of Southern coeliac children.

Celiac Disease

[Diagnosis of hereditary metabolic disorders in newborn and young infants].

This report describes anamnestic, physical and biochemical data in the neonatal period which have led to the diagnosis of an inborn error of metabolism in 12 children. Even in hospital laboratories without facilities for elaborate biochemical assays, adequate investigations permitting timely referral of the patient to a more specialised hospital can often be carried out. Most important is the constant awareness of the pediatrician in case of serious illness which cannot be easily explained by more common causes. The similarity of the clinical presentation and often the coexistence of neonatal sepsis and inborn error of metabolism are stressed. Even when treatment is not possible or has not been successful, a correct diagnosis is important for genetic counseling and antenatal diagnostic procedures.

Acidosis

Reduction of adult height in tall girls.

Assessment of the results of treatment of tall girls with estrogens by comparing actual mature height with predicted mature height is unreliable, unless the accuracy of prediction has been tested in untreated tall girls. We report such an investigation in 14 tall girls who were treated with estrogens and in 14 untreated tall girls. Of the three prediction methods, those of Bayley and Tanner were reliable in our hands, whereas the method of Roche was less adequate. The mean reduction of height by treatment was about 7 cm using Tanner's method of prediction, 10 cm when Bayley's method was used. The standard deviation of the difference between actual and predicted height as found in untreated girls makes it hazardous to assess the amount of height reduction in the individual treated case with any certainty.

Body Height

Glutamic acidemia.

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Amino Acid Metabolism, Inborn Errors

Female phenotype in a male child due to 17-alpha-hydroxylase deficiency.

The discovery of testicles in a 3-year-old girl with XY karyotype led to a diagnosis of testicular feminization. Subsequently, however, hypokalaemia, hypertension, and severe prostration during a mild infection suggested adrenal involvement, and investigations showed a 17-alpha-hydroxylase deficiency. Diagnosis of testicular feminization should not be made without excluding a defect of testosterone synthesis.

Adrenocortical Hyperfunction

Growth hormone in blood sampled continuously during pentobarbitone-induced sleep in children.

Growth hormone has been estimated in blood sampled continuously in periods each lasting 30 min during the first 3-4 h of pentobarbitone-induced sleep in 69 children. With only two half-hour samples, almost the same information was obtained as with the estimation of growth hormone in all samples. In this way 95% of normally growing children showed growth hormone levels of 5 muU/ml of more. Children with growth retardation of unknown cause and overweight children showed on the average lower growth hormone levels, not rarely even below 5 muU/ml. Pituitary dwarfs all had maximum growth hormone levels of 3 muU/ml or less. Growth hormone levels during sleep may be normal in children who show negative results on provocation, while subnormal growth hormone levels during sleep have been encountered in some children with retarded growth who had a normal response upon provocation.

Body Height

Anorexia nervosa with transient hypopituitarism.

A case is presented with sudden onset of cachexia and anorexia with hypopituitarism, starting early and progressing gradually. After about 15 months the patient recovered; first he lost the anorexia, then the endocrine functions and growth became normal. Conflicting reports about hypopituitarism in anorexia nervosa and similar syndromes may be due to lack of longitudinal observations and the transient nature of the endocrine disorders.

Adolescent