Introduction: Adequate nutrition, including intake of dietary calcium and vitamin D, is important to maintain bone health. Evidence suggests that a deficiency in micronutrients may contribute to bone loss during aging and exert generalized effects on chronic inflammation. Recently, the Dietary Inflammatory Index (DII) was developed to assess the inflammatory potential of individual diets. Our aim was to evaluate the DII in a representative sample and verify its association with low-impact fractures. Methods: Individuals from The Brazilian Osteoporosis Study (BRAZOS) database had their DII calculated. BRAZOS is an important cross-sectional epidemiological study carried out with a representative sample of men and women ≥40 years old. The research was conducted through in-home interviews administered by a trained team. Nutrition Database System for Research (NDSR) software was used to analyze data on the intake of nutrients, which were employed to calculate the DII using Statistical Analysis Software (SAS®) and Statistical Package for the Social Sciences (SPSS®) to assess its association with low-impact fractures. Results: A total of 2269 subjects had their DII score calculated using information from 24-h recall data. Males had lower DII than females (DII = 1.12 ± 1.04 vs DII = 1.24 ± 0.99, p = 0.012). Women taking statins had lower DII (DII = 0.65 ± 1.14 vs DII + 1.26 ± 0.98, p = 0.002), indicating a greater potential for diet-related anti-inflammatory effects. Conclusion: Our findings suggest that women might have a pro-inflammatory diet pattern compared to men. However, we did not find any association between DII scores and low-impact fractures.

Introduction/ objectives: Assuming that there is a link between lipid and glucose metabolism and inflammation in patients with psoriatic arthritis (PsA), our aim was to evaluate the relationships among body composition measurements, food intake, and disease activity in patients with PsA. Methods: A total of 97 patients with PsA, according to the CASPAR criteria, were included in this cross-sectional study. Body composition measurements (whole-body DXA, GE-Lunar), food intake (3-day registry) and biochemical and inflammatory serum markers were evaluated. Skin and joint disease activity were assessed by using PASI, BSA, DAS28, and minimal disease activity (MDA). The level of significance was set as p < 0.05. Results: A higher prevalence of obesity, according to the fat mass index (FMI) (92.7%), and metabolic syndrome (MetS) (54%) were found, but no significant changes regarding lean or bone mass were found. Joint disease activity was positively correlated with total body fat (r = 0.4; p < 0.001), FMI (r = 0.33; p < 0.001), body mass index (r = 0.20; p < 0.049) and waist circumference (r = 0.27; p = 0.009). In addition, joint disease activity was negatively associated with muscle mass (r = − 0.38; p < 0.001). Skin disease activity was positively correlated with total cholesterol (r = 0.3; p = 0.003) and LDL-cholesterol (r = 0.28; p = 0.006). After multiple adjustments, patients with severe joint disease activity had higher body adiposity than patients in remission or with low disease activity. Skin disease activity was associated with higher trans-fat intake and lower omega-6 consumption. Conclusions: Our data suggest a possible harmful link among fat (body adiposity, saturated fat consumption, LDLcholesterol serum levels) and joint and skin disease activity in patients with PsA.

Aim To evaluate whether dietary pattern changes, antioxidant supplementation or 5–10% weight loss could improve disease activity (skin and joint) in patients with psoriatic arthritis (PsA). Methods A total of 97 PsA patients were enrolled in this 12-week randomized, double-blinded, placebo-controlled trial. Patients were randomized into three groups: Diet-placebo (hypocaloric diet + placebo supplementation); Diet-fish (hypocaloric diet + 3 g/day of omega-3 supplementation; and Placebo. Food intake (3-day registry, Healthy Eating Index (HEI), and the Dietary Inflammatory Index (DII)), body composition (whole-body dual-energy X-ray absorptiometry (DXA), weight and waist circumference) and disease activity (PASI, BSA, BASDAI, DAS28-ESR, DAS28-CRP and MDA) were evaluated at baseline and after the 12-week intervention. Statistical analysis used the intention-to-treat approach. The P value was considered to indicate significance when below 0.05. Results After 12 weeks, DAS28-CRP and BASDAI scores improved, especially in the Diet-placebo group (− 0.6 ± 0.9; p = 0.004 and − 1.39 ± 1.97; p = 0.001, respectively). In addition, a higher proportion of patients achieved minimal disease activity (MDA) in all groups. The Diet-fish group showed significant weight loss (− 1.79 ± 2.4; p = 0.004), as well as waist circumference (− 3.28 ± 3.5, p < 0.001) and body fat (− 1.2 ± 2.2, p = 0.006) reductions. There was no significant correlation between weight loss and disease activity improvement. Each 1-unit increase in the HEI value reduced the likelihood of achieving remission by 4%. Additionally, each 100-cal daily intake increase caused a 3.4-fold DAS28-ESR impairment. Conclusion A 12-week hypocaloric intervention provided suitable control of joint disease activity in patients with PsA, regardless of weight loss. Adding omega-3 supplementation caused relevant body composition changes but not disease activity improvement. Trial Registration: The study was recorded on Clinicaltrials.gov (NCT03142503).

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AbstractThe oxidative stress has been considered one of the main aspects related to psoriatic arthritis (PsA), diabetes, hypertension, obesity, dyslipidemia and metabolic syndrome. Based in the premise that there is a close relationship between the metabolic and inflammatory domain in PsA patients, our aim was to evaluate the role of a 12-week nutritional intervention, including hypocaloric diet and antioxidant supplementation, on inflammatory markers and disease activity in patients with PsA.A total of 97 patients diagnosed with PsA (CASPAR, 2006) were included in this randomized, double-blinded placebo-controlled trial. Patients were distributed in three different groups: control (C) that received placebo (3 g of soybean oil); diet plus supplementation (DS) with hypocaloric diet plus omega 3 supplementation (3g); diet (D) with hypocaloric diet plus placebo supplementation (3 g of soybean oil). It was evaluated skin (PASI and BSA) and joint activity (DAS28-CRP, DAS28-ESR, BASDAI) and biochemical parameters, such as inflammatory markers (CRP, ESR, adiponectin, TBARs) and glucose and fat metabolism serum levels (HbA1c, fasting glucose and insulin, total cholesterol and fractions, triglycerides, AGER, oxidized- LDL, electronegative LDL (-) and anti-LDL (-) autoantibody) at baseline (T0) and after 12-week intervention (T3). Descriptive statistics are expressed as mean, standard deviation and frequency. Results were then compared using Kruskal-Wallis, ANOVA, Wilocoxon, Man-Whitney and T-Student test and multiple regressions. Level of significance was set as p < 0.05.At baseline there was an increase of inflammatory markers (CRP, ESR, TBARs, AGER, LDL modifications), decrease of anti-inflammatory (adiponectin) and high prevalence of hypercholesterolemia (41.2%) and peripheral insulin resistance (60%). Our data showed a significant correlation between electronegative LDL and PASI and a correlation between AGER and DAS28-ESR, indicating that a decrease of inflammatory parameters could be related to skin and joint improvement. However, after 12-week nutritional intervention there has no improvement of proinflammatory markers in the group. There was only a significant increase of adiponectin serum levels in all 3 groups, suggesting a benefit effect on chronic inflammation. According our results, omega 3 supplementation was not more effective to improve inflammation, oxidative stress and disease activity.

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