Gene/Protein Disease Symptom Drug Enzyme Compound
Pivot Concepts:   Target Concepts:
Query: EC:3.4.16.2 (PCP)
 3,761 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

The role of the autoimmune or autoallergic process in Progressive Chronic Polyarthritis, has been the subject of a great deal of study in the last four decades. In this work, using the synovial fluid of 312 patients suffering Chronic Progressive Polyarthritis and other arthropaties, the immunopathologic aspects of these diseases are studies. The following techniques had been used: 1. Total protein determination 2. Animal immunization. 3. Gel diffusion. 4. Immunoelectrophoresis. 5. Cellogel electrophoresis. 6. Radial immunodiffusion. 7. Absorption. After a systematic discussion of each of the results obtained (comparing these findings with those of other authors) we have arrived to the following conclusions. 1. The great importance of the immunoglobulins' role in the immunization process and their relation with high total protein titres, especially in PCP. 2. The importance of the IgA role in Rheumatoid Arthritis and in Acute Lymphatic Leukemia, behaving in the former as a Rheumatoid Factor with autoantibody nature. 3. An antigenic community between plasma and synovial proteins, and protein fractions. 4. The existence o af synovial "self" protein could not be demonstrated "in vivo".
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PMID:A contribution to the synovial fluid immunopathology in rheumatoid arthritis and other arthropathies. 122 74

Porcine brain contained an active factor that competed with [3H]-phencyclidine (PCP) for binding to rat brain membranes. On reverse phase high pressure liquid chromatography, the active material eluted between 38-42% acetonitrile. Gel filtration chromatography of the factor predicted a molecular weight of approximately 3000 daltons. The endogenous substance appeared to be selective for PCP receptors as it did not interact with either benzodiazepine, neurotensin, nor with mu, delta, or kappa opioid receptors. The active material showed a heterogenous distribution in brain, with highest concentrations found in hippocampus and cortex. It is likely to be a small peptide since various proteases eliminated or markedly reduced the potency of the compound in a [3H]-PCP binding assay. The material also possessed PCP-like activity in two bioassays. Like PCP, it induced contralateral rotational behavior after unilateral intranigral injection and depressed spontaneous cell activity after iontophoretic micropressure application in hippocampus and cerebral cortex. Thus, this small peptide is likely to be an endogenous ligand for the PCP receptor.
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PMID:Evidence for an endogenous peptide ligand for the phencyclidine receptor. 609 23