Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UNIPROT:P02774 (Gc-globulin)
 196 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

The distribution of alpha-1-antitrypsin (PI) and vitamin D-binding globulin (GC) phenotypes and gene frequencies has been examined in a homogenous group of clinically well-defined patients (N = 81) with rheumatoid arthritis. The distribution pattern of the two markers was then compared with two control groups consisting of 40 individuals with osteoarthritis and 192 randomly selected normal individuals, drawn from the same geographical area as the rheumatoid arthritis patients. No association was observed between alpha-1-antitrypsin subtypes or deficient alleles and any of clinical variables observed in rheumatoid arthritis cases. Although a slightly high frequency of the GC*2 allele and a low frequency of the GC*1S allele were observed in rheumatoid arthritis and osteoarthritis compared to controls, the differences were not statistically significant. However, within the patients two clinical variables were found to be significantly associated with a particular GC phenotype. Periarticular bony erosions and antinuclear antibody were positively and negatively associated with GC 1S-2 phenotype, respectively.
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PMID:Alpha-1-antitrypsin (PI) and vitamin-D binding globulin (GC) phenotypes in rheumatoid arthritis: absence of an association. 278 61

1,25-dihydroxyvitamin D3 (1,25(OH)2 D3) has been shown to modulate lymphocyte activation in vitro. Through binding to specific receptors 1,25-(OH)2 D3 inhibits proliferation, immunoglobulin production and the release of cytokines. Moreover, 1,25-(OH)2 D3 is efficiently produced by activated monocytes. These findings suggest that 1,25-(OH)2 D3 may play a role as a regulator of immunological activation. Consequently, we found it of interest to study the serum levels of the two major metabolites of vitamin D3 in patients with systemic lupus erythematosus (SLE) (n = 21), rheumatoid arthritis (RA) (n = 29) and osteoarthritis (n = 12). In patients with SLE the levels of 25-OH D3 were below those of the healthy controls (p = 0.0008) and OA (p = 0.0168). The levels 1,25-(OH)2 D3 corresponded to normal levels. There were no significant correlations between 25-OH D3 levels and clinical or paraclinical disease manifestations. Further, the phenotypic distribution of Gc-globulin, which binds vitamin D3 metabolites in circulation, was normal. The serum concentrations of 1,25-(OH)2 D3 and 25-OH D3 in patients with RA and OA corresponded to those of the controls. Although the cause of the reduced 25-OH D3 levels in SLE patients is unclear, possible beneficial effects of administration of vitamin D to these patients should be considered.
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PMID:Vitamin D3 metabolism in patients with rheumatic diseases: low serum levels of 25-hydroxyvitamin D3 in patients with systemic lupus erythematosus. 758 74

Two-dimensional (2-D) gel analysis was used to examine differences in the levels of 19 plasma proteins: before and after an acute inflammatory reaction (parenteral typhoid vaccination) in normal subjects, between rheumatoid arthritis (RA) patients and normals and in RA patients treated with tenidap (120 mg) and piroxicam (20 mg). Typhoid vaccination increased levels of SAA, haptoglobin alpha1, haptoglobin alpha2, haptoglobin beta and alpha1-anti-chymotrypsin but decreased transthyretin and apolipoprotein E. In RA patients, serum amyloid A (SAA), haptoglobin alpha2, haptoglobin beta, alpha1-antichymotrypsin and C3 proactivator levels were elevated while apolipoprotein A-I, apolipoprotein A-IV, transthyretin, Gc-globulin, alpha2-HS glycoprotein, alpha2-macroglobulin and alpha1-B glycoprotein levels were decreased, compared to normals. Compared to piroxicam, tenidap lowered levels of alpha1-antiprotease and SAA but raised the levels of transthyretin, Gc-globulin, alpha2-HS-glycoprotein and alpha2-macroglobulin in RA patients. C-reactive protein (CRP) could not be quantified on 2-D gels but, when measured by rate nephelometry, levels were reduced after treatment with tenidap compared to piroxicam. The general pattern of the acute phase protein response to an acute inflammatory response to typhoid vaccination is similar to that in the chronic inflammatory condition, RA. The impact of tenidap on both positive and negative acute-phase proteins in RA patients could clearly be distinguished from that of piroxicam.
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PMID:Analysis of changes in acute-phase plasma proteins in an acute inflammatory response and in rheumatoid arthritis using two-dimensional gel electrophoresis. 954 3