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Biomedical subjects

A Krebs

Publications and source records attributed to A Krebs.

At least 127 records · Page 7Linked to original sources
PubMed1976

[Diagnostic problems associated with the coincidence of bullous dermatosis and lupus erythematosus visceralis. Demonstration of a case with Duhring's dermatitis herpetiformis in association with visceral lupus erythematosus].

This report describes a patient, whom we observed for 3 years, exhibiting a coincidence of dermatitis herpetiformis Duhring and systemic Lupus erythematosus. The difficulties involved in demarcating bullous lupus erythematosus from the more rare association of bullous pemphigoid or dermatitis herpetiformis with systemic lupus erythematosus are discussed in connection with differential, histological, direct and indirect immunofluorescence diagnostic aids.

Adult↗
PubMed1976

[Cutaneous side effects of systemic drugs. Part 4 of a synopsis. 6/7. Drugs affecting the central nervous system. C. Drug-induced photosensitivity. D. Drug-induced changes of skin color].

This, the fourth part of a synopisis of cutaneous side effects of drugs, covers the drugs affecting the central nervous system: antiepileptics, hypnotics, narcotics and psychopharmaceutics; the myorelaxants and antiallergics follow, and lastly there is a section on drug addiction and placebo. The various cutaneous side effects are listed in chart form referring to more than 500 sources. A drug index is attached for handy reference. The reviews of certain drug induced skin disorders are continued with tables covering photosensitivity and changes in skin colour. Phototoxicity, photoallergy and light sensitivity by porphyria are differentiated. The various pigmentation disorders, colour changes due to metal deposits as well as different localisations are included.

Anticonvulsants↗
PubMed1975

Ornithine decarboxylase activity in relation to DNA synthesis in mouse interfollicular epidermis and hair follicles.

The relationship between ornithine decarboxylase (L-ornithine carboxylyase, EC 4.1.1.17) activity and DNA synthetic activity was studied in mouse epidermis. Interfollicular epidermis and hair follicles were investigated separately. It was found that, in hair follicles, the variations of DNA replicative activity, which are reflected in the cyclic growth of hair, are paralleled by corresponding changes in ornithine decarboxylase activity. In both interfollicular epidermis and hair follicles, stimulation of DNA synthetic activity by plucking of hair induced a rapid and marked increase in ornithine decarboxylase activity. The relationship of steady-state and induced ornithine decarboxylase activity to DNA synthetic activity was compared in hair follicles and interfollicular epidermis. A correlation between the activity of this enzyme and DNA replication was found thereby in each of these tissues.

Animals↗
PubMed1975

An analysis of pancreatic enzymes used in epidermal separation.

A comparative enzyme analysis was performed on 3 pancreatic extracts generally used for dermal-epidermal separation, namely, crude trypsin (Difco), crude trypsin (Sigma) and pancreatin. A fourth pancreatic extract, crude lipase, was subjected to a corresponding analysis. The 4 extracts were assayed for activities of: protease (total), trypsin, chymotrypsin, carboxypeptidase-A, amylase, elastase, lipase, esterase, arylesterase and ribonuclease. Relative activities of the different proteolytic enzymes were individualized by utilizing specific inhibitors. Insignificant differences were observed between the enzyme activities of crude trypsin (Difco) and pancreatin. Crude lipase displayed similar enzyme activities as these two extracts in addition to high lipolytic, esterolytic and arylesterolytic activities. Crude trypsin (Sigma) exhibited higher tryptic and chymotryptic activities than the other extracts but lacked all further enzyme activities. Epidermal separation was performed using similar incubation conditions for each extract and skin from the same donor. Ultrastructural examination of the detached epidermis revealed that a more effective separation could be achieved by crude lipase.

Amylases↗
PubMed1975

Mode of dermal-epidermal adhesion.

The mode of dermal-epidermal adhesion was investigated by a systematic enzyme digestion of the dermo-epidermal junction. The anchoring fibrils and filaments were found to consist of elastin and collagen-like filaments which intertwine to form the adepidermal membrane. A model on the possible in situ conditions is proposed.

Amylases↗
PubMed1975

[Focal dermal hypoplasia with keratoconus, papillomatosis of esophagus and hidrocystomas (author's transl)].

Focal dermal hypoplasia (Goltz's syndrome, Goltz-Gorlin syndrome), an uncommon malady belonging to the group of congenital poikloderma, is characterized by its broad spectrum of meso-ectodermal defects involving the skin as well as the eyes, skeletal system and teeth. The case represented her is identical with the one published by Naegeli 1926, and contains some additional findings that have not yet been reported, namely: multiple hidrocystomas, bilateral keratoconus, papillomatosis of esophagus, hiatus hernia.

Abnormalities, Multiple↗