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Biomedical subjects

F E Larsen

Publications and source records attributed to F E Larsen.

7 recordsLinked to original sources

Posterior subcapsular cataracts, bruises and hoarseness in children with asthma receiving long-term treatment with inhaled budesonide.

We assessed the effect of long-term treatment with inhaled budesonide (BUD) on the occurrence of posterior subcapsular cataracts (PSC), bruises and hoarseness in children with asthma. Slit lamp examinations were performed in 157 asthmatic children treated with inhaled BUD at a mean daily dose of 504 microg (range 189-1,322 microg) for 3-6 yrs (mean 4.4 yrs). Measurements were compared with 111 age-matched children with asthma, who had never received treatment of exogenous corticosteroids (control group). The children were examined for bruises, their tendency to bruise and occurrence of voice changes. No incidents of PSC ascribable to BUD treatment were seen. One patient in the BUD group had been diagnosed with PSC before the study and this was still present. There were no statistically significant differences in number of bruises between the two groups (BUD=33, controls=3.2; p=0.70), area covered by bruises (BUD=10 cm2, controls=10.1 cm2; p=0.97), tendency to bruise (BUD=5/10, controls=5/10) or occurrence of hoarseness (BUD=20%, controls=21%; p=0.92). Furthermore, there was no correlation between the occurrence of bruises or tendency to bruise and duration of treatment, accumulated or current dose of BUD. A 3-6 yr treatment of children with inhaled budesonide at an average daily dose of about 500 microg is not associated with an increased occurrence of posterior subcapsular cataract, bruises, tendency to bruise, hoarseness or other noticeable voice changes.

Administration, Inhalation↗

Human aqueous humor catecholamines.

Timolol of 0.5% was applied in 6 eyes prior to cataract extraction, while 7 eyes were not treated. Aqueous humor was drawn after retrobulbar analgesia with 2% lidocaine and analyzed for epinephrine and norepinephrine using a radioenzymatic assay. Epinephrine levels averaged 15.8 +/- 16.2 and 19.3 +/- 27.5 pg/ml in the timolol treated group and controls respectively. The corresponding values for norepinephrine were 1.59 +/- 0.55 and 1.87 +/- 0.90 ng/ml. These differences were not statistically significant. Norepinephrine levels in this study were somewhat higher than in previous reports of catecholamine levels in human aqueous humor and considerably higher than plasma levels of norepinephrine. There was no significant correlation between aqueous humor norepinephrine levels and age in the two groups combined. The mean norepinephrine levels for men and women in the two groups combined were 1.73 +/- 0.89 and 1.76 +/- 0.56 ng/ml. The difference was not statistically significant. Timolol resulted in a decrease in the intraocular pressure.

Aged↗

Vogt's retro-iridian pigment lines. Light microscopical and ultrastructural study of a case.

A woman, aged 69, with latent diabetes was found to have retro-iridian pigment lines. Cataract extraction was followed by light microscopy and electron microscopy. Cross sections of the pigment lines showed these to consist of two main constituents, whose structures are described. The portion of the lines closest to the lens had a certain resemblance to the substance seen on the lens and in the iris in pseudo-exfoliation, while the remaining part of the pigment lines consisted of uniform microtubules.

Aged↗