Assessment of serum levels of cathelicidin and vitamin D in acne vulgaris:

Association between Vitamin D Level and Acne, and Correlation with Disease Severity: A Meta-Analysis

BACKGROUND

Vitamin D deficiency is frequently associated with several medical conditions. However, a comprehensive meta-analysis assessing the association between vitamin D level and acne is lacking.

OBJECTIVE

To determine the relationship between vitamin D level and acne, and to assess the association between vitamin D level and acne severity.

METHODS

This meta-analysis was assessed by using the PubMed, EMBASE, Cochrane, and Scopus databases following the PRISMA guidelines. Serum/plasma 25-hydroxyvitamin D (25[OH]D) level, vitamin D deficiency, and the severity association between acne patients and healthy controls (HCs) were evaluated. The quality assessment was performed by using the Newcastle-Ottawa Scale.

RESULTS

Thirteen articles with a total of 1,362 acne patients and 1,081 HCs were included. The circulating 25(OH)D levels were significantly lower in patients with acne than in HCs (pooled MD = -9.02 ng/mL, 95% CI = -13.22 to -4.81, p < 0.0001). Vitamin D deficiency was more prevalent in acne patients than in HCs (pooled OR = 2.97, 95% CI = 1.68-5.23, I2 = 72%). Also, vitamin D levels were negatively correlated with acne severity.

CONCLUSION

This meta-analysis demonstrated the significantly low vitamin D levels in acne patients. Also, there was evidence of an inverse association between vitamin D levels and acne severity. Therefore, vitamin D might be involved in the pathogenesis of acne.

Vitamin D status and efficacy of vitamin D supplementation in acne patients: A systematic review and meta-analysis

BACKGROUND

Acne vulgaris, a chronic inflammatory dermatosis, affects approximately 85% of adolescents and young adults.The level of vitamin D in acne patients and the effect on acne patients of a vitamin D supplementation have previously been documented; however, it remains to be disputed whether vitamin D deficiency is normal in acne patients.

AIMS

This paper explores the relationship between vitamin D and acne levels and the advantageous implications of vitamin D supplements on acne.

METHODS

From every database start date until December 2020, we checked the PubMed, EMBASE, MEDLINE and the Cochrane libraries. Case-controls or randomized controlled trial reporting on the serum 25(OH)D level and the efficacy of vitamin D supplement to acne patients were included.

RESULTS

The serum 25(OH)D levels in acne patients is lower (standardized mean difference = -7.66 ng/ml; 95% confidence interval (CI) = -10.92 to -4.40). Articles also revealed the prospect of a therapeutic breakthrough through the supplementing of vitamin D for acne patients.

CONCLUSION

Our research offers a new guide in the field of acne prevention and health care.