Metabolic syndrome in systemic lupus erythematosus patients under Mediterranean diet / Síndrome metabólico en pacientes con lupus eritematoso sistémico con patrón de dieta mediterránea

Background and aims: Metabolic syndrome (MetS) is a chronic proinflammatory and prothrombotic condition that exacerbates insulin resistance, oxidative damage, and cardiovascular risk, being more prevalent in patients with systemic lupus erythematosus (SLE), a chronic multisystemic autoimmune disorder. This study aim was to determine the prevalence of MetS and associations with SLE clinical characteristics, cardiovascular risk and dietary pattern in a population of Spanish SLE patients. Design and methods: Cross-sectional study of 293 patients was conducted (90.4% females; mean age 46.8 (12.94)). The diagnosis of MetS was established based on the criteria of the National Cholesterol Education Program Adult Treatment Panel III. SLE Disease Activity Index (SLEDAI-2K) and SDI Damage Index were used to assess disease activity and disease-related damage, respectively. Med Diet adherence was assessed through a 14 items questionnaire on food consumption frequency and habits. Results: MetS was present in 15% SLE patients. Triglycerides, high-density lipoprotein cholesterol, systolic blood pressure and waist circumference were significantly increased (p<0.001) in the group of MetS patients. Patients with MetS showed significantly increased SDI damage index (1.70 (1.69) vs 0.88 (1.12), p<0.001) and complement C3 level (118.70 (32.67) vs 107.55 (26.82), p=0.011). No significant differences were observed according to Med Diet adherence level. Conclusion: We observed a lower prevalence of MetS in SLE than that reported in previous studies, which may be a result of the good level of adherence to the MedDiet in our study sample. Additionally, MetS was associated with higher SDI and complement C3 levels but no with medication use.(AU)

Antecedentes y objetivos: El síndrome metabólico (SM) es una condición crónica proinflamatoria y protrombótica que exacerba resistencia a insulina, daño oxidativo y riesgo cardiovascular, más prevalente en pacientes con lupus eritematoso sistémico (LES) y trastorno autoinmune multisistémico crónico. El objetivo del estudio fue determinar la prevalencia de SM y asociación con características clínicas del LES, riesgo cardiovascular y patrón dietético en pacientes españoles con LES. Diseño y métodos: Estudio transversal, 293 pacientes (90,4% mujeres; edad media 46,85 [12,94]). Diagnóstico de SM según criterios National Cholesterol Education Program Adult Treatment Panel III. Se utilizó el Índice de Actividad de la Enfermedad del LES (SLEDAI-2K) e Índice de Daño del LES para evaluar actividad de la enfermedad y el daño relacionado con la enfermedad. Adherencia a la dieta mediterránea (DM) se evaluó mediante un cuestionario de 14 ítems sobre frecuencia y hábitos de consumo de alimentos. Resultados: El 15% de los pacientes con LES presentaron SM. Encontramos triglicéridos, colesterol de lipoproteínas de alta densidad, presión arterial sistólica y perímetro cintura significativamente elevados (p<0,001) en pacientes con SM. Pacientes con SM mostraron índice de daño SDI (1,70 [1,69] vs. 0,88 [1,12]; p<0,001) y nivel de complemento C3 (118,70 [32,67] vs. 107,55 [26,82]; p=0,011) significativamente elevados. No diferencias significativas según el nivel de adherencia a la DM. Conclusiones: Observamos menor prevalencia de SM en pacientes con LES que la descrita en estudios previos, podría deberse a la buena adherencia a la DM en nuestra muestra. El SM se asoció con mayores niveles de SDI y complemento C3, no con el uso de medicación.(AU)

Social Health and Its Influence on Metabolic Health Among a Rural Population: A Cross-Sectional Study.

The aim of this study was to estimate the prevalence of metabolic syndrome (MetS) in a Spanish rural population and assess differences in prevalence according to loneliness level, social isolation, and social support. This is a cross-sectional study of 310 patients. MetS was defined by National Cholesterol Education Program-Third Adult Treatment Panel. The UCLA (University of California, Los Angeles) Loneliness Scale, Multidimensional Scale of Social Support, and Lubben Social Network Scale were used to assess loneliness, perceived social support, and social isolation. Almost half of the participants fulfilled MetS diagnosis criteria. Subjects with MetS showed significantly higher levels of loneliness, less social support, and greater social isolation. Systolic blood pressure was significantly higher in socially isolated rural adults. Environmental factors may play a key role in the prevalence of MetS, so specific screening and prevention programs could help health professionals prevent the increasing rates of MetS in rural populations under these socially specific conditions of vulnerability.

Metabolic syndrome in systemic lupus erythematosus patients under Mediterranean diet.

BACKGROUND AND AIMS: Metabolic syndrome (MetS) is a chronic proinflammatory and prothrombotic condition that exacerbates insulin resistance, oxidative damage, and cardiovascular risk, being more prevalent in patients with systemic lupus erythematosus (SLE), a chronic multisystemic autoimmune disorder. This study aim was to determine the prevalence of MetS and associations with SLE clinical characteristics, cardiovascular risk and dietary pattern in a population of Spanish SLE patients. DESIGN AND METHODS: Cross-sectional study of 293 patients was conducted (90.4% females; mean age 46.8 (12.94)). The diagnosis of MetS was established based on the criteria of the National Cholesterol Education Program Adult Treatment Panel III. SLE Disease Activity Index (SLEDAI-2K) and SDI Damage Index were used to assess disease activity and disease-related damage, respectively. Med Diet adherence was assessed through a 14 items questionnaire on food consumption frequency and habits. RESULTS: MetS was present in 15% SLE patients. Triglycerides, high-density lipoprotein cholesterol, systolic blood pressure and waist circumference were significantly increased (p<0.001) in the group of MetS patients. Patients with MetS showed significantly increased SDI damage index (1.70 (1.69) vs 0.88 (1.12), p<0.001) and complement C3 level (118.70 (32.67) vs 107.55 (26.82), p=0.011). No significant differences were observed according to Med Diet adherence level. CONCLUSION: We observed a lower prevalence of MetS in SLE than that reported in previous studies, which may be a result of the good level of adherence to the MedDiet in our study sample. Additionally, MetS was associated with higher SDI and complement C3 levels but no with medication use.

Dietary Sodium, Potassium, and Sodium to Potassium Ratio in Patients With Systemic Lupus Erythematosus.

Purpose: The aim of this study was to investigate the association between dietary sodium, potassium, and sodium:potassium ratio and clinical disease activity parameters, damage accrual, and cardiovascular disease risk factors in a population of patients with systemic lupus erythematous (SLE). Research design and study sample: A cross-sectional study including a total of 280 patients was conducted (90.4% females; mean age 46.9 ± 12.85 years). Data collection: The SLE Disease Activity Index (SLEDAI-2K) and the SDI Damage Index were used to assess disease activity and disease-related damage, respectively. A 24-hour diet recall was used to estimate dietary intake of sodium and potassium. Results: Dietary sodium intake was significantly associated with anti-dsDNA (ß = -.005; 95% CI [.002 .008]; p = .001) and complement C4 level (ß = -.002; 95% CI [-.003, .000]; p = .039). Dietary potassium intake was also significantly associated with complement C3 level (ß = -.004; 95% CI [-.007, -.001]; p = .021). Multiple logistic regression models revealed a positive association between dietary sodium intake and the risk of having hsCRP > 3 (p = .005) and an inverse association between dietary potassium intake and the risk of having hsCRP > 3 (p = .004). Conclusions: SLE patients with higher dietary sodium and lower dietary potassium intakes had an increased risk of higher hsCRP. Dietary sodium intake was significantly associated with anti-dsDNA and complement C4 level, while dietary potassium intake was associated with complement C3 level, supporting that dietary sodium and potassium intakes might play a key role in markers related to disease activity in SLE patients.

Vitamin D Levels are Associated with Disease Activity and Damage Accrual in Systemic Lupus Erythematosus Patients.

Vitamin D has immunosuppressive properties and is considered a therapeutic option, although there is controversy about the role of this vitamin in the pathogenesis of systemic lupus erythematosus (SLE). We aimed to determine the prevalence of vitamin D insufficiency and deficiency and their potential association with disease activity, damage accrual, SLE-related clinical manifestations, and cardiovascular risk factors in SLE patients. A cross-sectional study of 264 patients was conducted (89.4% females; mean age 46.7 ± 12.9 years). The SLE Disease Activity Index (SLEDAI-2 K) and the SDI Damage Index were used to assess disease activity and disease-related damage, respectively. The mean 25(OH)D value was 25.1 ± 13.0 ng/ml. Eleven patients (4.2%) had 25(OH)D <10 (deficiency) and 178 patients (70.6%) had 25(OH)D <30 (insufficiency). In the 25(OH)D deficiency group, SLEDAI was significantly higher than the insufficiency (p = 0.001) and normal groups (p < 0.001). Also, patients with vitamin D deficiency presented significantly higher SDI scores than patients with 25(OH)D insufficiency (p = 0.033) and 25(OH)D normal levels (p = 0.029). There is a high prevalence of both vitamin D deficiency and insufficiency in Caucasian SLE patients and this status was associated with higher SLEDAI and SDI scores, supporting the impact of vitamin D levels on disease activity and damage accrual in SLE patients. Longitudinal studies on the relationship between vitamin D status and disease activity and progression are therefore required.