Clinical and experimental dermatology · 2021
Acquired perforating dermatoses show increased levels of cutaneous advanced glycation end-products.
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Bellinato F, Maurelli M, Gisondi P, Girolomoni G
Аннотация
BACKGROUND: Acquired perforating dermatoses (APDs) are characterized by transepidermal elimination of skin materials. Altered glycation of dermal components may be involved in pathogenesis.
AIM: To assess whether patients affected by APDs have increased levels of cutaneous advanced glycation end-products (AGEs).
METHODS: A cross-sectional controlled study involving a total of 109 patients was conducted, enrolling 29 patients consecutively diagnosed with primary APDs [reactive perforating collagenosis (RPC), elastosis perforans serpiginosa (EPS), perforating folliculitis (PF) and Kyrle disease (KD)], 40 age- and sex-matched healthy controls (HCs) and 40 patients with mild atopic dermatitis (AD). The levels of cutaneous AGEs were measured using a validated fluorescence technique.
RESULTS: The median skin autofluorescence value in patients with APDs was significantly higher [2.7 arbitrary units (AU), interquartile range (IQR) 1.9-3.9 AU] compared with HCs (1.8 AU, IQR 1.6-2.3 AU; P < 0.001) and patients with AD (2.1 AU, IQR 1.9-2.3 AU; P = 0.01). Median values were 3.5 AU (IQR 2.7-4.6 AU) for RPC, 1.83.5 AU (1.4-2.4 AU) for EPS, 3.1 AU (2.4-4.4 AU) for PF and 2.6 AU (2.3-3.1 AU) for KD.
CONCLUSIONS: Our results may suggest a possible physiopathological role of AGEs in the transepidermal elimination mechanisms involved in certain APDs.
AIM: To assess whether patients affected by APDs have increased levels of cutaneous advanced glycation end-products (AGEs).
METHODS: A cross-sectional controlled study involving a total of 109 patients was conducted, enrolling 29 patients consecutively diagnosed with primary APDs [reactive perforating collagenosis (RPC), elastosis perforans serpiginosa (EPS), perforating folliculitis (PF) and Kyrle disease (KD)], 40 age- and sex-matched healthy controls (HCs) and 40 patients with mild atopic dermatitis (AD). The levels of cutaneous AGEs were measured using a validated fluorescence technique.
RESULTS: The median skin autofluorescence value in patients with APDs was significantly higher [2.7 arbitrary units (AU), interquartile range (IQR) 1.9-3.9 AU] compared with HCs (1.8 AU, IQR 1.6-2.3 AU; P < 0.001) and patients with AD (2.1 AU, IQR 1.9-2.3 AU; P = 0.01). Median values were 3.5 AU (IQR 2.7-4.6 AU) for RPC, 1.83.5 AU (1.4-2.4 AU) for EPS, 3.1 AU (2.4-4.4 AU) for PF and 2.6 AU (2.3-3.1 AU) for KD.
CONCLUSIONS: Our results may suggest a possible physiopathological role of AGEs in the transepidermal elimination mechanisms involved in certain APDs.