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Biomedical subjects

J Urban

Publications and source records attributed to J Urban.

At least 127 records · Page 7Linked to original sources

Studies on the therapeutic effect of Wratizolin in selected dermatoses.

Clinical investigations of ITCL drug ("Polfa") were carried out on 50 patients (15 women, 16 men, 19 children, at the age of 4-80). ITCL has been successful in non-specific inflammations accompanying some virus dermatoses (zoster, herpes simplex), in streptococcal pyoderma (impetigo, ecthyma), and in some allergic dermatoses (disseminated eczema and atopic dermatitis). Encouraging results were obtained with ITCL in the treatment of psoriasis. It seems that the further attempts with this should be continued in psoriasis. The capillaroscopic examinations in 6 patients revealed ITCL to have vasoconstrictive effect on the nail wall cutis capillaries 6 h after its application. This may be associated with the anti-inflammatory effect of the drug.

Administration, Topical↗

Dopamine influence on human uterine activity at term pregnancy.

The influence of dopamine on uterine activity was studied by external tocography in women at the end of a normal pregnancy. In those who were not in labour dopamine infusion (2 micrograms min-1 kg-1 body weight) induced regular uterine contractions and with higher doses the response increased. For women in spontaneous labour, dopamine at a dose of 4 micrograms min-1 kg-1 caused a significant increase in the frequency of contraction, but in women receiving an oxytocin infusion, no further stimulation was seen. Dopamine did not have any noticeable effect on fetal heart rate, maternal pulse rate or blood pressure and no other general effects were observed.

Dopamine↗

Identical NH2-terminal amino acid sequence of the intrahepatic precursor and the secreted form of rat alpha 1-acid glycoprotein.

Automated Edman degradation of alpha 1-acid glycoprotein from serum (serum AGP) was successful only after the desialylated, reduced, and alkylated protein had been treated with pyroglutamate aminopeptidase. The sequence is (less than Glu)-Asn-Pro-Glu-Pro-Ala-X-Ile-Thr-Leu-Gly-Ile-Pro-Ile-. For radioactive sequencing of the NH2 terminus of the intracellular precursor form (liver AGP) of serum AGP, protein was labeled by incubating liver cells in suspension with either [3H]proline or [3H]isoleucine for a 15-min period. Liver AGP was separated from serum AGP by ion exchange chromatography. Between 78 and 90% of the radioactivity incorporated into total AGP was associated with liver AGP, indicating that little conversion of newly synthesized liver AGP to serum AGP had occurred during the 15-min incubation period. Liver AGP was then isolated by immunoprecipitation. The antigen-antibody complex was exposed to 15 Edman degradation cycles; however, no radioactivity was released. Automated Edman degradation of liver AGP which had been extracted from the immunoprecipitate with dilute acid and subsequently treated with pyroglutamate aminopeptidase yielded a sequence of proline and isoleucine identical with that in serum AGP. We conclude that processing of the intracellular precursor form of AGP does not involve a proteolytic trimming near the NH2 terminus.

Amino Acid Sequence↗