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Acanthosis nigricans as a clinical marker of insulin resistance among overweight adolescents

dc.contributor.authorVideira-Silva, A
dc.contributor.authorAlbuquerque, C
dc.contributor.authorFonseca, H
dc.date.accessioned2019-08-08T21:26:33Z
dc.date.available2019-08-08T21:26:33Z
dc.date.issued2019-06
dc.description.abstractPURPOSE: Acanthosis nigricans (AN) is a hyperpigmented dermatosis associated with obesity and insulin resistance (IR). There is no consensus whether AN extension scoring offers added value to the clinical estimation of IR. In this study we aimed to assess and score AN using both a short and an extended version of the scale proposed by Burke et al. and analyze the relationships of both versions with hyperinsulinemia and IR. METHODS: We analyzed data from 139 overweight adolescents (body mass index ≥85th percentile) aged 12-18 with (n=67) or without (n=72) AN who were followed at a pediatric obesity clinic. RESULTS: Adolescents with AN had higher levels of insulin (d=0.56, P=0.003) and HOMA-IR (d=0.55, P=0.003) compared to those without. Neither the short nor the extended versions of AN scores explained either hyperinsulinemia (β=1.10, P=0.316; β=1.15, P=0.251) or IR (β=1.07, P=0.422; β=1.10, P=0.374). The presence of AN alone predicted hyperinsulinemia and the presence of IR in 7.3% (β=2.68, P=0.008) and 7.1% (β=2.59, P=0.009) of adolescents, respectively. CONCLUSION: Screening for AN at the neck and axilla is a noninvasive and cost-effective way to identify asymptomatic overweight adolescents with or at risk of developing IR.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationAnn Pediatr Endocrinol Metab. 2019 Jun;24(2):99-103.pt_PT
dc.identifier.doi10.6065/apem.2019.24.2.99pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.26/29497
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.subjectAcanthosis Nigricanspt_PT
dc.subjectAdolescentept_PT
dc.subjectSobrepesopt_PT
dc.titleAcanthosis nigricans as a clinical marker of insulin resistance among overweight adolescentspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage103pt_PT
oaire.citation.issue2pt_PT
oaire.citation.startPage99-103pt_PT
oaire.citation.volume24pt_PT
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT

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