Gene/Protein Disease Symptom Drug Enzyme Compound
Pivot Concepts:   Target Concepts:
Query: EC:3.1.1.8 (cholinesterase)
 12,691 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

After having reviewed the classical notions of normal skin innervation, the authors study the dermal amyelinic system in 12 patients suffering from psoriasis, using the cholinesterase method and the method of Bielchowski-Gross Jabonero. They successively describe the superficial network with the crooked isolated neurite rising to the tip of the papillae, the perivascular system which spreads out with the vessels themselves, and the hyperplastic perisudoriparous network with its peripilary endings. These findings clearly differ from those of Weddel. The amyelinic system appears to be little changed in psoriasis. The circumscribed nature of the morphological changes, however, should not deny it a role in the physiopathology of this dermatosis. A few recent hypotheses in this regard are discussed.
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PMID:[The dermal amyelinic system and its endings in psoriasis]. 59 83

The activities of glutamic-pyruvic transaminase (GPT) and catalase are increased by 42 to 283% in patients with neurodermatitis, eczema, and psoriasis, whereas the activities of glutamic-oxaloacetic transaminase, alkaline phosphatase, and cholinesterase are unchanged. In women with neurodermatitis and psoriasis the level of GPT is by 24-28% lower than in men. In psoriasis catalase activity in women is by 50% higher than in men. Hence, the activities of some enzymes in disease are related to patients' sex. Blood serum catalase measurements are diagnostically valuable in skin diseases.
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PMID:[Blood enzyme activities in men and women with certain diseases]. 775 54

Tazarotene is a novel acetylenic retinoid for the treatment of psoriasis and acne. We examined (1) the hydrolysis of tazarotene in blood from Japanese-American and Caucasian subjects, (2) the esterases responsible for this hydrolysis in human blood, and (3) tazarotene hydrolysis in rat and human liver microsomes. Tazarotene hydrolysis and enzyme inhibition were assessed by monitoring the disappearance of tazarotene and the appearance of its primary metabolite tazarotenic acid by HPLC. In blood, tazarotene was converted mainly to tazarotenic acid via first-order kinetics, and there was no statistically significant difference in the hydrolytic (metabolic) rate of tazarotene in uninhibited Japanese-American and Caucasian blood. Physostigmine (a cholinesterase inhibitor), bis(p-nitrophenyl) phosphate (a carboxylesterase inhibitor), and EDTA (an aromatic esterase inhibitor) did not significantly affect tazarotene hydrolysis in blood. Paraoxon, an inhibitor of all serine esterases including cholinesterase and carboxylesterase, decreased the hydrolysis of tazarotene to tazarotenic acid by 95% in both blood and liver microsomes. In conclusion, blood and liver esterases play a significant role in the hydrolysis of tazarotene to tazarotenic acid, and paraoxon-inhibitable forms of esterases are involved in this hydrolysis in humans.
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PMID:Metabolic deesterification of tazarotene in human blood and rat and human liver microsomes. 926 78