Transcutaneous anaesthetic nano-enabled hydrogels for eyelid surgery.

International journal of pharmaceutics 2020 Vol.577() p. 119003

Lalatsa A, Patel PV, Sun Y, Kiun CC, Karimi F, Zekonyte J, Emeriewen K, Saleh GM

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Abstract

Local anaesthetics are administered as a diffuse superficial slow injection in blepharoplasty. Current transcutaneous local anaesthetic formulations are not licensed for use on the face due to safety concerns. Here we report for the first time the permeation of local anaesthetics (lidocaine, bupivacaine loaded SNEDDS and their hydrogels) across human eyelid and mouse skin as a novel and ocular safe formulation for eyelid surgery. SNEDDS were loaded with high levels of anaesthetics and incorporated within carbomer hydrogels to yield nano-enabled gels. Lidocaine hydrogels have a significantly reduced lag time compared to EMLA, while they enhance lidocaine flux across human eyelid skin by 5.2 fold. Ex vivo tape stripping experiments indicated localisation of anaesthetics within the stratum corneum and dermis. Initial histopathological studies have shown no apparent signs of skin irritation. These results highlight the potential clinical capability of nano-enabled anaesthetic hydrogels as a non-invasive anaesthetic procedure for eyelid surgery.

추출된 의학 개체 (NER)

유형영어 표현한국어 / 풀이UMLS CUI출처등장
해부 eyelid 눈꺼풀 dict 5
시술 eyelid surgery 안검성형술 dict 3
약물 lidocaine 리도카인 dict 3
시술 blepharoplasty 안검성형술 dict 1
해부 anaesthetics scispacy 1
해부 stratum corneum scispacy 1
해부 dermis scispacy 1
해부 skin scispacy 1
약물 bupivacaine C0006400
bupivacaine
scispacy 1
약물 SNEDDS scispacy 1
약물 EMLA C0059079
EMLA
scispacy 1
약물 carbomer scispacy 1
질환 skin irritation C0152030
Skin irritation
scispacy 1
기타 human eyelid scispacy 1
기타 mouse skin scispacy 1
기타 human eyelid skin scispacy 1

MeSH Terms

Acrylic Resins; Administration, Cutaneous; Anesthetics, Local; Animals; Bupivacaine; Drug Delivery Systems; Emulsions; Eyelids; Humans; Hydrogels; Lidocaine; Lidocaine, Prilocaine Drug Combination; Male; Mice; Nanogels; Nanotechnology; Ophthalmologic Surgical Procedures; Skin Absorption

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