| Summary: | Abstract Background Association between periodontal disease and dyslipidemia was recently reported in healthy adults. However, a systematic evaluation of concomitant periodontal diseases and lipid profile was not carried out in juvenile dermatomyositis (JDM). A cross-section study was performed in 25 JDM patients and 25 healthy controls, assessing demographic data, periodontal evaluation, fasting lipoproteins and anti-lipoprotein lipase antibodies. Disease parameters, laboratorial tests and treatment were also evaluated in JDM patients. Results The mean current age was similar in patients and controls (11.5 ± 3.75 vs. 11.2 ± 2.58 years,p = 0.703). Regarding lipid profile, the median triglycerides [80(31–340) vs. 61(19–182)mg/dL,p = 0.011] and VLDL[16(6–68) vs. 13(4–36)mg/dL,p = 0.020] were significantly higher in JDM patients versus controls. Gingival vasculopathy pattern was significantly higher in the former group (60% vs. 0%,p = 0.0001), as well as the median of gingival bleeding index (GBI) [24.1(4.2–69.4) vs. 11.1(0–66.6)%,p = 0.001] and probing pocket depth (PPD) [1.7(0.6–2.4) vs.1.4(0–2.12)mm,p = 0.006]. Comparison between JDM patients with and without dyslipidemia revealed that the median of dental plaque index (PI) [100(26.7–100) vs. 59(25–100)%,p = 0.022], PPD[1.9(0.6–2.4) vs. 1.4(1.2–1.8)mm,p = 0.024] and clinical attachment level (CAL) [1.31(0.7–1.7) vs. 0.8(0.6–1.7)mm,p = 0.005] were significantly higher in patients with dyslipidemia. Further analysis between JDM patients with and without gingivitis revealed that the median of current age [12.4 (8.3–18.4) vs. 9.2 (5.5–17.5) years, p = 0.034] and disease duration [7.09 ± 3.07 vs. 3.95 ± 2.1 years, p = 0.008] were significantly higher in the former group. Conclusion Our study showed that gingival inflammation seems to be related to dyslipidemia in JDM patients, suggesting underlying mechanisms for both complications.
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