title: Correlation between serum IL-16 and atopic dermatitis.
abstract: This study aims to investigate the correlation between allergic sensitization of atopic dermatitis (AD) patients and their serum interleukin (IL)-16 levels. AD patients, healthy volunteers, and patients with psoriasis (N = 80, 35, 20, respectively) were tested for serum IL-16 and total and specific IgE levels by enzyme-linked immunosorbent assay, along with eosinophil counts. Serum allergen-specific IgE levels were determined, and skin-prick testing conducted in a subgroup of 45 AD patients. Based on specific IgE levels, AD patients were categorized into non-sensitized group 1 and sensitized group 2. Furthermore, they were sorted as non-sensitized group A and sensitized group B based on skin-prick results. Next, the serum IL-16 and total IgE levels in these subgroups were determined. Compared to levels in healthy volunteers and psoriasis patients, the serum IL-16 levels in AD patients were significantly higher (P < 0.001). Additionally, total serum IgE levels were significantly correlated with serum IL-16 levels and eosinophil counts. However, no correlation was observed between serum IL-16 levels and eosinophil counts. The serum IL-16 and total IgE levels in group 2 were also significantly elevated (P < 0.001) in contrast to those in group 1. Although we did not observe any significant difference between serum IL-16 levels in groups A and B, the total serum IgE level in group B was significantly higher than that in group A (P < 0.001). Thus, allergic sensitivity in AD patients correlates with total serum IgE as well as serum IL-16; the correlation with IL-6 is weaker.
authors.affiliation: Department of Dermatology, Shandong Jining First People's Hospital, Jining, Shandong, China.
authors.forename: H Y
authors.initials: HY
authors.lastname: Zheng
authors.affiliation: Department of Dermatology, Shandong Jining First People's Hospital, Jining, Shandong, China.
authors.forename: L
authors.initials: L
authors.lastname: Zhao
authors.affiliation: Department of Dermatology, Shandong Jining First People's Hospital, Jining, Shandong, China.
authors.forename: C X
authors.initials: CX
authors.lastname: Li
authors.affiliation: Department of Dermatology, Shandong Jining First People's Hospital, Jining, Shandong, China.
authors.forename: S H
authors.initials: SH
authors.lastname: Li
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D003876:Dermatitis, Atopic / Q000097:blood*; D004797:Enzyme-Linked Immunosorbent Assay; D004804:Eosinophils / Q000166:cytology; D005260:Female; D006801:Humans; D007073:Immunoglobulin E / Q000097:blood; D019410:Interleukin-16 / Q000097:blood*; D008297:Male; D008875:Middle Aged; D011565:Psoriasis / Q000097:blood; D055815:Young Adult
chemical_list: D019410:Interleukin-16; D007073:Immunoglobulin E