ABSTRACT
Background: In patients with psoriasis, psychiatric co-morbidities accompany quite frequently. Aims and Objectives: We aimed to compare the effects of methotrexate and biologics on psychiatric comorbidities, and also examine the relationship of these symptoms with systemic inflammation parameters. Materials and Methods: Sixty patients with psoriasis treated with biologics or methotrexate were enrolled. At the baseline and the 24th week of the treatment, the patients filled Beck Anxiety Inventory (BAI), Beck Depression Inventory (BDI), and Dermatology Life Quality Index (DLQI), inflammation was assessed with serum C-reactive protein (CRP) and tumour necrosis factor-alpha (TNF-α) levels. Results: The decrease in BAI and BDI scores at the 24th week was significant in both the groups. When the decrease in BAI and BDI scores of the two groups were compared, no significant differences were found between the groups. The decrease in DLQI scores of the patients who received biologics was significantly superior compared to the patients who received methotrexate (P = 0.007). There was no significant correlation between the change in serum inflammation parameters and the decrease in the BDI/BAI scores. Conclusions: In patients with psoriasis, biologics and methotrexate reduce the symptoms of depression and anxiety. The difference between the two groups was insignificant. Biologics improve the quality of life better than methotrexate. Systemic inflammation parameters do not reflect the changes in these symptoms in such patients.
ABSTRACT
BACKGROUND: Lichen simplex chronicus is a dermatological condition due to excessive scratching, with few studies on psychoneuroimmunology. OBJECTIVE: We aimed to estimate the levels of stress, depression, and anxiety, and to measure serum levels of neurotrophins in patients with lichen simplex chronicus, and to correlate these parameters with the severity of the disease and pruritus. METHODS: Thirty-six patients with lichen simplex chronicus and 36 age- and sex-matched healthy controls were included. Each participant was administered the Hospital Anxiety and Depression Scale and Perceived Stress Scale questionnaires, along with a visual analog scale for pruritus. Levels of neurotrophins (brain-derived neurotrophic factor, neurotrophin-3, nerve growth factor, glial cell line-derived neurotrophic factor) were determined by ELISA assays. RESULTS: The scores of Perceived Stress Scale-10, Hospital Anxiety and Depression Scale were statistically higher in patients (p < 0.05 for all). The serum levels of all neurotrophins were significantly lower in patients compared to healthy controls (p < 0.05 for all). Disease severity showed no correlation with all four neurotrophins. In linear regression models applied for increased visual analog scale-pruritus scores and disease severity these two variables were statistically significant predictors (p = 0.043). STUDY LIMITATIONS: A direct causal relationship was not addressed. CONCLUSION: Lichen simplex chronicus patients are at risk of increased levels of stress, anxiety, depression, and present decreased levels of neurotrophins, that may suggest a role in the pathophysiology of this disorder.
Subject(s)
Neurodermatitis , Anxiety , Anxiety Disorders , Depression , Humans , PruritusABSTRACT
Abstract Background: Lichen simplex chronicus is a dermatological condition due to excessive scratching, with few studies on psychoneuroimmunology. Objective: We aimed to estimate the levels of stress, depression, and anxiety, and to measure serum levels of neurotrophins in patients with lichen simplex chronicus, and to correlate these parameters with the severity of the disease and pruritus. Methods: Thirty-six patients with lichen simplex chronicus and 36 age- and sex-matched healthy controls were included. Each participant was administered the Hospital Anxiety and Depression Scale and Perceived Stress Scale questionnaires, along with a visual analog scale for pruritus. Levels of neurotrophins (brain-derived neurotrophic factor, neurotrophin-3, nerve growth factor, glial cell line-derived neurotrophic factor) were determined by ELISA assays. Results: The scores of Perceived Stress Scale-10, Hospital Anxiety and Depression Scale were statistically higher in patients (p < 0.05 for all). The serum levels of all neurotrophins were significantly lower in patients compared to healthy controls (p < 0.05 for all). Disease severity showed no correlation with all four neurotrophins. In linear regression models applied for increased visual analog scale-pruritus scores and disease severity these two variables were statistically significant predictors (p = 0.043). Study limitations: A direct causal relationship was not addressed. Conclusion: Lichen simplex chronicus patients are at risk of increased levels of stress, anxiety, depression, and present decreased levels of neurotrophins, that may suggest a role in the pathophysiology of this disorder.