The L55M polymorphism of paraoxonase-1 is a risk factor for rheumatoid arthritis.
Summary of "The L55M polymorphism of paraoxonase-1 is a risk factor for rheumatoid arthritis."
araoxonase-1 (PON1) is a high-density lipoprotein-associated enzyme that exhibits antioxidant and antiatherogenic activities. We examined a possible association between T172A (L55M) and T(-107)C polymorphisms and rheumatoid arthritis. These polymorphisms were determined in 88 rheumatoid arthritis patients and 78 healthy subjects, using the tetra-amplification refractory mutation system-PCR method. The prevalence of the PON1 55MM genotype was significantly greater among rheumatoid arthritis patients (17%) when compared to control subjects (5.2%) (odds ratio (OR) = 3.75; 95% confidence interval (CI) = 1.87-11.8, P = 0.025). In addition, the M allele was more frequent in rheumatoid arthritis patients (40%) than in healthy subjects (24.7%) (OR = 1.997; 95%CI = 1.243-3.210, P = 0.005). There were no significant differences in the -107C/T polymorphism in the promoter sequence of PON1 between rheumatoid arthritis and normal subjects (chi(2) = 0.861, P = 0.650). In conclusion, the PON1 55MM genotype is a risk factor for rheumatoid arthritis.
Department of Clinical Biochemistry, School of Medicine, Zaedan University of Medical Sciences, Zahedan, Iran email@example.com.
This article was published in the following journal.
Name: Genetics and molecular research : GMR
- PubMed Source: http://www.ncbi.nlm.nih.gov/pubmed/20812194
- DOI: http://dx.doi.org/10.4238/vol9-3gmr893
Medical and Biotech [MESH] Definitions
Arthritis, Juvenile Rheumatoid
Rheumatoid arthritis of children occurring in three major subtypes defined by the symptoms present during the first six months following onset: systemic-onset (Still's Disease, Juvenile-Onset), polyarticular-onset, and pauciarticular-onset. Adult-onset cases of Still's disease (STILL'S DISEASE, ADULT-ONSET) are also known. Only one subtype of juvenile rheumatoid arthritis (polyarticular-onset, rheumatoid factor-positive) clinically resembles adult rheumatoid arthritis and is considered its childhood equivalent.
Antibodies found in adult RHEUMATOID ARTHRITIS patients that are directed against GAMMA-CHAIN IMMUNOGLOBULINS.
Gold Sodium Thiomalate
A variable mixture of the mono- and disodium salts of gold thiomalic acid used mainly for its anti-inflammatory action in the treatment of rheumatoid arthritis. It is most effective in active progressive rheumatoid arthritis and of little or no value in the presence of extensive deformities or in the treatment of other forms of arthritis.
A type of inflammatory arthritis associated with PSORIASIS, often involving the axial joints and the peripheral terminal interphalangeal joints. It is characterized by the presence of HLA-B27-associated SPONDYLARTHROPATHY, and the absence of rheumatoid factor.
Still's Disease, Adult-onset
Systemic-onset rheumatoid arthritis in adults. It differs from classical rheumatoid arthritis in that it is more often marked by acute febrile onset, and generalized lymphadenopathy and hepatosplenomegaly are more prominent.
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