{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,30]],"date-time":"2026-07-30T18:23:36Z","timestamp":1785435816947,"version":"3.56.0"},"reference-count":41,"publisher":"MDPI AG","issue":"14","license":[{"start":{"date-parts":[[2026,7,8]],"date-time":"2026-07-08T00:00:00Z","timestamp":1783468800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/100016247","name":"Wroc\u0142aw University of Environmental and Life Sciences","doi-asserted-by":"crossref","id":[{"id":"10.13039\/100016247","id-type":"DOI","asserted-by":"crossref"}]},{"id":[{"id":"https:\/\/ror.org\/05cs8k179","id-type":"ROR","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Animals"],"abstract":"<jats:p>The integument of elasmobranchs is a complex biomechanical system in which epithelial, connective tissue and mineralised components form a functionally specialised body surface. Despite extensive research on dermal denticles, the spatial configuration of the whole integument, especially the regional arrangement of collagen fibres in benthic species, remains poorly understood. This study provides an integrated characterisation of the skin microarchitecture of the Arabian carpetshark (Chiloscyllium arabicum), with emphasis on regional variability in dermal denticles and collagen matrix structuring. Skin samples were analysed using haematoxylin and eosin, Masson\u2013Goldner, PAS\u2013Alcian blue and picrosirius red staining, together with transmitted and polarised light microscopy and morphometric analysis. The skin of this species showed a hierarchical organisation comprising a stratified epithelium and a complex fibrous dermis. Dermal denticles displayed typical elasmobranch anatomy, but their morphology, orientation, and density varied regionally, allowing five morphotypes to be distinguished. Collagen fibres formed ordered, plywood-like and orthogonal arrangements showing spatial correspondence with local denticle distribution. These findings indicate regional structural specialisation of the integument and suggest a structural association, and a possible functional relationship, between denticle morphology and collagen architecture.<\/jats:p>","DOI":"10.3390\/ani16142118","type":"journal-article","created":{"date-parts":[[2026,7,8]],"date-time":"2026-07-08T15:40:09Z","timestamp":1783525209000},"page":"2118","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Regional Microarchitecture of the Skin of the Arabian Carpetshark (Chiloscyllium arabicum): A Histological Study Using Polarised Light Microscopy"],"prefix":"10.3390","volume":"16","author":[{"given":"Anna","family":"Lipi\u0144ska","sequence":"first","affiliation":[{"name":"Department of Biostructure and Animal Physiology, Faculty of Veterinary Medicine, Wroc\u0142aw University of Environmental and Life Sciences, Norwida 31, 50-375 Wroc\u0142aw, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ma\u0142gorzata","family":"Tarnowska","sequence":"additional","affiliation":[{"name":"Department of Biostructure and Animal Physiology, Faculty of Veterinary Medicine, Wroc\u0142aw University of Environmental and Life Sciences, Norwida 31, 50-375 Wroc\u0142aw, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4649-323X","authenticated-orcid":false,"given":"Konrad","family":"Cyprych","sequence":"additional","affiliation":[{"name":"Soft Matter Optics Group, Wroc\u0142aw University of Science and Technology, Wybrze\u017ce Wyspia\u0144skiego 27, 50-370 Wroc\u0142aw, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ma\u0142gorzata","family":"Bednarska","sequence":"additional","affiliation":[{"name":"Department of Epizootiology with the Clinic of Birds and Exotic Animals, Wroc\u0142aw University of Environmental and Life Sciences, Norwida 25, 50-635 Wroc\u0142aw, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jakub","family":"Kordas","sequence":"additional","affiliation":[{"name":"Wroc\u0142aw Zoo, 1\u20135 Wr\u00f3blewskiego Street, 51-618 Wroc\u0142aw, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4357-2271","authenticated-orcid":false,"given":"Maciej","family":"Janeczek","sequence":"additional","affiliation":[{"name":"Department of Biostructure and Animal Physiology, Faculty of Veterinary Medicine, Wroc\u0142aw University of Environmental and Life Sciences, Norwida 31, 50-375 Wroc\u0142aw, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0682-4743","authenticated-orcid":false,"given":"Piotr","family":"Kuropka","sequence":"additional","affiliation":[{"name":"Department of Biostructure and Animal Physiology, Faculty of Veterinary Medicine, Wroc\u0142aw University of Environmental and Life Sciences, Norwida 31, 50-375 Wroc\u0142aw, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2026,7,8]]},"reference":[{"key":"ref_1","unstructured":"Reif, W.-E. 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