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17941

Molecular Characterization Of Hair Cuticle And Its Extracted Proteins In Seven Mammalian Species

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Last updated: 24 Dec 2024

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Abstract

Hairisanoftheepidermisinmammalsandconsistsoftwolargegroupsofhumanhair proteins.Oneishardα-keratinsandtheotherismatrixproteins.Thepresentinvestigationaimed tocomparetheultrastructuralofthehairscaleusingthescanningelectronmicroscope,andthe proteinsandaminoacidscontentofthekeratininsevenmammalianspecies. Thevaluesofthehairthickness,x/yferetandhairpatternofthespeciesinthepresent studyconfirmthepresenceofspecies-specificcharacteristicsandultrastructuralvariation.The situationinmandiffersfromthewildmammalsduetodamageofhaircuticlecausedby mechanicalabuse,exposuretoultravioletradiationandchemicaloverprocessing.The maximumamountofextractedproteinsfromhairkeratinwasanalyzedbySDS-PAGE.The electrophoreticpatternsshowedanoveralldegreeofsimilarity.However,differencesexist betweenspeciesintheintensityofstain.Quantitatively,theelectrophoreticpatternsscannedand analyzedusinggelproteinanalyzer.Theresultsshowednodifferencebetweenthemolecular massofsomespecies,butdifferentinmolecularmassdistribution. Aminoacidcompositionofkeratinofmammalianhairspeciesofthepresentstudy showedsomevariation,especiallyformethionine,isoleucine,lysineandarginine.Theother aminoacidsstudiedaresignificantlypresentinmosthair.Oneofthelateraminoacidis cysteine.Cysteineisaveryimportantdueto hepresenceofdisulfatecross-links.    

DOI

10.21608/ejhm.2006.17941

Authors

First Name

S. K.

Last Name

Areida

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Affiliation

Zoology Department, Faculty of Science, Mansoura University, Mansoura, Egypt.

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First Name

M. F.

Last Name

Ismail

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Affiliation

Zoology Department, Faculty of Science, Mansoura University, Mansoura, Egypt.

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Orcid

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First Name

E. K.

Last Name

Abdel Hady

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Affiliation

Zoology Department, Faculty of Science, Mansoura University, Mansoura, Egypt.

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Orcid

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First Name

A. O.

Last Name

Osman

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-

Affiliation

Zoology Department, Faculty of Science, Mansoura University, Mansoura, Egypt.

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Volume

23

Article Issue

1

Related Issue

3738

Issue Date

2006-04-01

Receive Date

2018-10-30

Publish Date

2006-04-01

Page Start

287

Page End

308

Print ISSN

1687-2002

Online ISSN

2090-7125

Article File

EJHM_Volume 23_Issue 1_Pages 287-308.pdf

PDF . 1.6MB

Link

https://ejhm.journals.ekb.eg/article_17941.html

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https://ejhm.journals.ekb.eg/service?article_code=17941

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Original Article

Type Code

606

Publication Type

Journal

Publication Title

The Egyptian Journal of Hospital Medicine

Publication Link

https://ejhm.journals.ekb.eg/

MainTitle

Molecular Characterization Of Hair Cuticle And Its Extracted Proteins In Seven Mammalian Species

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Article

Created At

22 Jan 2023