The nail apparatus: A guide for basic and clinical science

Lawry, Monica; Rich, Phoebe

doi:10.1016/s1040-0486(99)90001-7

Cited by 17 publications

(29 citation statements)

References 122 publications

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“…In a healthy nail the nail matrix is visible as white lunula [8]. If psoriasis involves the nail matrix, nail psoriasis shows up as changes in the nail plate such as pitting, Beau lines, leukonychia, red spots in the lunula, or nail plate crumbling.…”

Section: Resultsmentioning

confidence: 99%

Nail psoriasis – what a rheumatologist should know about

Nieradko-Iwanicka

2017

Reumatologia

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Psoriasis is a chronic recurrent inflammatory skin disease with prevalence of 1–3%. Nail psoriasis affects 10–90% of patients with plaque psoriasis.The aim of the article is to review the literature for the correlation between nail psoriasis and psoriatic arthritis (PsA) to provide rheumatologists a short review on features of nail psoriasis, methods of their assessment and possible clinical repercussions.The PubMed database was searched using the key words ‘nail psoriasis’ and ‘psoriatic arthritis’. Psoriasis involving the nail matrix shows up as changes such as pitting, Beau lines, leukonychia, red spots in the lunula, or nail plate crumbling. Nail bed psoriasis manifests as onycholysis, oil drops (or salmon patches), dyschromia, splinter hemorrhages, or subungual hyperkeratosis. Nail psoriasis and psoriatic lesions in the gluteal cleft and on the scalp usually accompany PsA, especially in adult men.

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Section: Resultsmentioning

confidence: 99%

Nail psoriasis – what a rheumatologist should know about

Nieradko-Iwanicka

2017

Reumatologia

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“…These are the dorsal matrix (ventral aspect of the proximal nail fold), the intermediate matrix (the epithelial structure starting at the point where the dorsal matrix folds back on itself to underlie the proximal nail) and the ventral matrix (nail bed). The strongest site of attachment of the nail plate to the nail apparatus is the nail bed 31 . The vertical arrangement of the collagen fibres of the nail bed creates a ligament-like connection between the epidermal basement membrane and the phalangeal periosteum 32 …”

Section: Bone-to-nail Attachmentmentioning

confidence: 99%

Biomimetic-inspired joining of composite with metal structures: A survey of natural joints and application to single lap joints

Avgoulas

Sutcliffe

2014

Bioinspiration, Biomimetics, and Bioreplication 2014

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Joining composites with metal parts leads, inevitably, to high stress concentrations because of the material property mismatch. Since joining composite to metal is required in many high performance structures, there is a need to develop a new multifunctional approach to meet this challenge. This paper uses the biomimetics approach to help develop solutions to this problem. Nature has found many ingenious ways of joining dissimilar materials and making robust attachments, alleviating potential stress concentrations. A literature survey of natural joint systems has been carried out, identifying and analysing different natural joint methods from a mechanical perspective. A taxonomy table was developed based on the different methods/functions that nature successfully uses to attach dissimilar tissues (materials). This table is used to understand common themes or approaches used in nature for different joint configurations and functionalities.One of the key characteristics that nature uses to joint dissimilar materials is a transitional zone of stiffness in the insertion site. Several biomimetic-inspired metal-to-composite (steel-to-CFRP), adhesively bonded, Single Lap Joints (SLJs) were numerically investigated using a finite element analysis. The proposed solutions offer a transitional zone of stiffness of one joint part to reduce the material stiffness mismatch at the joint. An optimisation procedure was used to identify the variation in material stiffness which minimises potential failure of the joint. It was found that the proposed biomimetic SLJs reduce the asymmetry of the stress distribution along the adhesive area.

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“…Lokalisationen der Nagelbiopsie unterschie-den: Matrix, Nagelbett und periunguale Haut (Tab. 3) [30,32]. Grundsätzlich ist die Orientierung der Exzisionsachse im Matrixbereich senkrecht und im Nagelbettbereich parallel zur Längsachse.…”

Section: Biopsie Des Nagelapparatesunclassified

Die Hautbiopsie und die Dermatopathologie für den Kliniker

Paredes¹

2003

Swiss Med Forum

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The nail apparatus: A guide for basic and clinical science

Cited by 17 publications

References 122 publications

Nail psoriasis – what a rheumatologist should know about

Nail psoriasis – what a rheumatologist should know about

Biomimetic-inspired joining of composite with metal structures: A survey of natural joints and application to single lap joints

Die Hautbiopsie und die Dermatopathologie für den Kliniker

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