Putra, T R
Indonesian Rheumatology Association

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Correlation between Severity of Knee Osteoarthritis and Serum Levels of Cartilage Oligomeric Matrix Protein Kambayana, Gede; Kurniari, Pande; Andriyasa, Andriyasa; Putra, T R
Indonesian Journal of Rheumatology Vol 5, No 1 (2014)
Publisher : Indonesian Rheumatology Association

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Abstract

Background: The sensitivity of radiographic examination in the diagnosis and severity assessment of knee osteoarthritis (OA) is still low. Various attempts have been made to find more reliable indicators of cartilage damage. One potential marker is cartilage oligomeric matrix protein (COMP), a substance that in previous animal studies had been shown to be released in proportion to the extent of joint cartilage damage.Objective: To evaluate the correlation between the severity of knee OA and serum level of COMP in human with normal renal function. Methods: This was a cross-sectional study performed at the outpatient clinic in Department of Internal Medicine, Sanglah Hospital, Denpasar. The diagnosis of knee OA was based on the American College of Rheumatology (ACR) criteria. The degreeof knee OA severity was determined by using the Kellgren-Lawrence criteria, while COMP values were checked by enzyme-linked immunosorbent assay (ELISA) method.Results: Forty five patients who were recruited were examined: 19 (42.2%) were female and 26 (57.8%) were male. The mean age of patients was 64.1±7.1 years. There were 4.4%, 26.7%, 46.7%, and 22.2% patients who had grade 1st, 2nd, 3rd, and 4th degree joint damage based on the Kellgren-Lawrence score, respectively. Mean serum level of COMP was 1081.4 ng/mL. We found a significant correlation ofthe severity of knee OA with serum level of COMP (r = 0.41, p = 0.005).Conclusion: Among the patients in this study, there was a significant correlation between the severity of joint damage in knee OA and serum level of COMP.
Comparison of the prevalence of hyperuricemia in families of patients with and without gouty arthritis among Balinese people Kambayana, Gede; Putra, T R
Indonesian Journal of Rheumatology Vol 3, No 1 (2011)
Publisher : Indonesian Rheumatology Association

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Background: Gout is a metabolic disorder caused by hyperuricemia, which results from changes in uric acid metabolism. Both internal (e.g., genetics) and external factors (e.g., diet, habits, comorbidities) play role in the occurrence of hyperuricemia and the difference of hyperuricemia prevalence in different populations.Objective: To compare the prevalence of hyperuricemia in families of gout and non-gout patients among Balinese people.Methods: This cross-sectional study was carried out at the rheumatology clinic at Sanglah Hospital, Denpasar. Samples were collected using consecutive method and consisted of gout and non-gout patients. Several characteristics (alcohol and purine consumption,medications, blood pressure, body mass index, serum uric acid level, and serum creatinine) in both groups were collected and compared. Family members (fi rstdegree relatives) of patients in each group were also recruited and had their serum uric acid level measured and compared.Results: A total of 46 patients and 116 family members (23 patients and 58 family members in each group) were enrolled. Among gout patients, there was signifi cantlyhigher prevalence of hyperuricemia, serum uric acid level, blood pressure, and serum creatinine; and lower creatinine clearance compared with the non-gout patients. There was signifi cantly higher prevalence of hyperuricemia among families of gout patients comparedwith families of non-gout patients (60.3 vs. 29.3%, respectively; p = 0.001), with a prevalence ratio of 2.06. Mean serum uric acid level of the family members of gout patients were also signifi cantly higher than the family members of non-gout patients (7.24 (SD 1.74) vs. 5.92 (SD 1.63) mg/dL, respectively; p = 0.000).Conclusion: Among Balinese people in this study, significantly higher prevalence of hyperuricemia and mean serum uric acid level was observed in families of gout patients compared with families of non-gout patients.