Hashimoto's disease (HT) and psoriasis (PsO) have a significant impact on patient's quality of everyday life, and early diagnosis is critical for the symptoms management and prognosis. There is evidence that HT and PsO share common metabolic pathways that relate to their pathogenesis, and are affected by dietary and lifestyle factors. Previous studies have identified potential metabolic biomarkers, although the small number of studies hamper their validation. Of note, most studies are not longitudinal thus do not capture the metabolic fluctuations in response to disease progression or dietary changes. Thus, the purpose of this study is to identify metabolic biomarkers of HT and PsO and study the role of epigenetic factors (diet and lifestyle) on the involved metabolic pathways . In addition, a comparative analysis of the disease-related quality of life (QoL) will be performed in relation to dietary changes to unravel possible links between the QoL and the associated metabolic pathways in HT and PsO.
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Differential levels of urinary organic acids in patients with Hashimoto's thyroiditis and psoriasis compared to healthy individuals as assessed by GC-MS
Timeframe: Baseline
Differential levels of peripheral blood fatty acids in patients with Hashimoto's thyroiditis and psoriasis compared to healthy individuals as assessed by GC-MS
Timeframe: Baseline
Change from baseline urinary organic acids levels after 6-month intervention with nutraceuticals as assessed by GC-MS
Timeframe: 6 months
Change from baseline peripheral blood fatty acids levels after the 6-month intervention with nutraceuticals as assessed by GC-MS
Timeframe: 6 months
Change from baseline thyroid disease-related quality of life at 6-months of intervention with nutraceuticals as assessed by the THYPRO questionnaire
Timeframe: 6 months
Change from baseline psoriasis-related quality of life at 6-months of intervention with nutraceuticals as assessed by the DLQI questionnaire
Timeframe: 6 months
Change from baseline Mediterranean diet adherence at 6 months of intervention with nutraceuticals as assessed by the MDS questionnaire
Timeframe: 6 months