Bioelectrical phase angle and psoriasis: a novel association with psoriasis severity, quality of life and metabolic syndrome

被引:54
作者
Barrea, Luigi [1 ]
Macchia, Paolo Emidio [2 ]
Di Somma, Carolina [3 ]
Napolitano, Maddalena [4 ]
Balato, Anna [4 ]
Falco, Andrea [1 ]
Savanelli, Maria Cristina [1 ]
Balato, Nicola [4 ]
Colao, Annamaria [2 ]
Savastano, Silvia [2 ]
机构
[1] IOS & COLEMAN Srl, Naples, Italy
[2] Univ Naples Federico II, Sch Med, Dipartimento Med Clin & Chirurg, Unit Endocrinol, Via Sergio Pansini 5, I-80131 Naples, Italy
[3] IRCCS SDN, Napoli Via Gianturco 113, I-80143 Naples, Italy
[4] Univ Naples Federico II, Sch Med, Dipartimento Med Clin & Chirurg, Unit Dermatol, Via Sergio Pansini 5, I-80131 Naples, Italy
来源
JOURNAL OF TRANSLATIONAL MEDICINE | 2016年 / 14卷
关键词
Environmental factors; Phase angle (PhA); Psoriasis area and severity index (PASI) score; Dermatology life quality index (DLQI); Metabolic syndrome (MetS); POPULATION REFERENCE VALUES; IMPEDANCE ANALYSIS; BODY-COMPOSITION; HEALTHY; RISK; SARCOPENIA; DISEASE; MARKER; MASS; AGE;
D O I
10.1186/s12967-016-0889-6
中图分类号
R-3 [医学研究方法]; R3 [基础医学];
学科分类号
1001 ;
摘要
Background: Obesity, metabolic syndrome (MetS), and psoriasis, largely driven by environmental factors, show multiple bidirectional associations, with important metabolic implications in psoriatic patients. Besides body mass index (BMI) as a measure of obesity, data on phase angle (PhA), a direct measure by bioelectrical impedance analysis (BIA), used as a marker of cellular health and a predictor of morbidity and mortality in various diseases, are still lacking in psoriasis. In this case-control, cross-sectional study, we investigated the PhA in 180 pairs of adult psoriatic patients and healthy controls, evaluating also the potential use of the PhA as marker of the clinical severity, the quality of life, and the presence of the MetS in psoriatic patients. Methods: Anthropometric measures, metabolic profile and bioelectrical variables were evaluated. The clinical severity was assessed by standardized psoriasis area and severity index (PASI) score and c-reactive protein (CRP) levels, and the quality of life was evaluated by dermatology life quality index (DLQI). MetS was diagnosed according to Adult Treatment Panel III. Results: Psoriatic patients presented smaller PhA (p < 0.001) and higher prevalence MetS compared with controls. The PhA was significantly associated with number of parameters of MetS in both groups (p < 0.001). After adjusting for BMI, this association remained significant in psoriatic patients only (p < 0.001). Among psoriatic patients, the PhA was the major index value for the diagnosis of MetS (OR 5.87, 95 % CI 5.07-6.79) and was inversely associated with both PASI score and DLQI, independently of BMI (p < 0.001). At multiple regression analysis, the PhA well predicted the PASI score and DLQI. Based on ROC curves, the most sensitive and specific cutoffs of PhA to predict the highest PASI score and the lowest DQLI were <= 4.8 degrees and <= 4.9 degrees, respectively. Conclusions: We reported that psoriatic patients presented small PhAs, with a novel association between PhA, clinical severity, quality of life in psoriatic patients, and MetS. Further studies are required to validate the PhA's prognostic ability in assessing the clinical severity and MetS in psoriatic patients.
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页数:12
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