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Biomedical subjects

G Fluge

Publications and source records attributed to G Fluge.

At least 55 records · Page 3Linked to original sources

Labelling indices after 3H-thymidine incorporation during organ culture of duodenal mucosa in coeliac disease.

Incorporation of 3H-thymidine during organ culture of duodenal biopsy specimens from 34 coeliac and 10 non-coeliac patients was studied by autoradiography. High labelling indices were found in flat, coeliac mucosas. Gluten fractions, which provoked histological deterioration during culture, induced labelling of a greater proportion of crypt cells and higher migration rate than parallelly cultured specimens on gluten-free medium. No influences on crypt cell kinetics could be observed after culture with gluten fractions incapable of producing histological damage or with alpha-lactalbumin. In coeliac remission mucosas, labelling indices were at the same level as in non-coeliac biopsies, and no significant effects of gluten were observed. Autoradiography seems to be a fairly sensitive and reliable determinant of gluten toxicity by organ culture in coeliac disease and should supplement the histological appraisal of the biopsies. The increment of labelling indices provoked by gluten exposure seemed not merely to be a consequence of increased desquamation of cells from the biopsy surface but could imply a direct influence of gluten on crypt cell kinetics in coeliac disease.

Adolescent↗

Morphological and morphometric assessment of human duodenal biopsies maintained in organ culture. In vitro influences of gluten in coeliac disease.

Duodenal biopsy specimens from 51 coeliac patients (children and young adults) and 13 non-coeliac controls were maintained in organ culture for 24 h. Morphometric determinants were compared after culture in the presence of different gluten fractions, after culture on gluten-free medium, and in non-cultured specimens. Biopsies from patients with untreated coeliac disease were susceptible to gluten fractions, which provoked disorganization of crypt architecture, reduced height and irregularities of enterocytes and crypt cells, together with detrition of surface epithelial cells and even tissue necrosis. In latent coeliac disease (silent relapse) biopsies were more resistant to gluten, and higher concentrations were required to induce signs of morphological deterioration. Remission mucosa and biopsies from non-coeliac controls showed no signs of impairment after gluten exposure in vitro.

Adolescent↗

Fucosidosis: severe phenotype with survival to adult age.

A male patient with fucosidosis exhibited the following characteristics: 1. Early onset and rapid progression of neurological symptoms. 2.Skin changes compatible with angiokeratoma corporis diffusum. 3. Complete or nearly complete deficiency of alpha-fucosidase. 4. Survival to adult age (20 years). The deficiency of alpha-fucosidase was demonstrated in liver, tears, urine, sediment, and cultured fibroblasts. We conclude that severe deficiency or complete absence of alpha-fucosidase does not by itself preclude survival to adult age.

Adult↗

Endocrinological aspects at follow-up studies in neonatal hypoglycaemia.

Thirty-seven cases of neonatal hypoglycaemia were studied at follow-up at the age of 2 6/12-r 9/12 years. Two of them had had hypoglycaemia were stuafter the newborn period, and another patient died in a hypoglycaemic state following surgery at 10 weeks of age. Twenty-three children had oral glucose tolerance tests and intravenous insulin tolerance tests performed. Diabetic glucose tolerance was noted in 3 children. None of them showed symptoms of diabetes mellitus, neither was there any family history of diabetes. One of these patients had experienced hypoglycaemia after the newborn period and responded with hyperinsulinism during the glucose tolerance test. The other hypoglycaemic patient showed an exaggerated insulin release in response to tolbutamide. Deficient serum cortisol response to insulin-induced hypoglycaemia was demonstrated in 7 patients and 6 of these had concomitant minimal growth hormone response. One of these patients also had a diabetic glucose tolerance. None were of short stature. It is probable that a disturbance in the hypothalamic-pituitary-adrenal axis may contribute to an impaired carbohydrate metabolism in some patients with neonatal hypoglycaemia.

Blood Glucose↗

Neurological findings at follow-up in neonatal hypoglycaemia.

Follow-up examination was carried out in 37 children who had been hypoglycaemic during the neonatal period. Mean age was 3 1/2 years. Five out of 7 children with asymptomatic hypoglycaemia neonatally were completely normal, while minimal brain dysfunction was evident in one, and another child showed pathological EEG. Symptomatic, transient hypoglycaemia seemed to carry a poor prognosis as only one out of 9 individuals was normal. Four patients in this group had convulsions after the neonatal period; two of these had recurrence of hypoglycaemia. One had infantile spasms and was severely mentally retarded with spastic diplegia and epilepsy. One girl was blind due to optic nerve atrophy. Four cases of cerebral palsy were detected in this group. Among 21 cases of secondary hypoglycaemia there were no cases of serious neurological sequelae. It is reasonable to assume that neonatal hypoglycaemia is an important prognostic factor. The deleterious effect on the CNS seems to be related to the duration and severity of the hypoglycaemia.

Attention Deficit Disorder with Hyperactivity↗