Startsida
Hjälp
Sök i LIBRIS databas

     

 

Sökning: onr:19659886 > Protease-activated ...

Protease-activated receptors in the Achilles tendon-a potential explanation for the excessive pain signalling in tendinopathy [Elektronisk resurs]

Christensen, Jens (författare)
Alfredson, Håkan (författare)
Andersson, Gustav (författare)
Umeå universitet Medicinska fakulteten (utgivare)
Alternativt namn: Umeå universitet. Medicinsk-odontologiska fakulteten
Alternativt namn: Medicinska fakulteten vid Umeå universitet
Umeå universitet Medicinska fakulteten (utgivare)
Alternativt namn: Umeå universitet. Medicinsk-odontologiska fakulteten
Alternativt namn: Medicinska fakulteten vid Umeå universitet
Umeå universitet Medicinska fakulteten (utgivare)
Alternativt namn: Umeå universitet. Medicinsk-odontologiska fakulteten
Alternativt namn: Medicinska fakulteten vid Umeå universitet
2015
Engelska.
Ingår i: Molecular Pain. - 1744-8069. ; 11
Läs hela texten
Läs hela texten
Läs hela texten
  • E-artikel/E-kapitel
Sammanfattning Ämnesord
Stäng  
  • Background/Aim: Tendinopathies are pathological conditions of tissue remodelling occurring in the major tendons of the body, accompanied by excessive nociceptive signalling. Tendinopathies have been shown to exhibit an increase in the number of mast cells, which are capable of releasing histamine, tryptase and other substances upon activation, which may play a role in the development of tendinopathies. This study set out to describe the distribution patterns of a family of receptors called protease-activated receptors (PARs) within the Achilles tendon. These four receptors (PAR1, PAR2, PAR3, PAR4) are activated by proteases, including tryptase released from mast cells, and are involved in fibrosis, hyperalgesia and neovascularisation, which are changes seen in tendinopathies. Method: In order to study which structures involved in tendinopathy that these proteases can affect, biopsies from patients suffering of mid-portion Achilles tendinosis and healthy controls were collected and examined using immunohistochemistry. Tendon cells were cultured to study in vitro expression patterns. Results: The findings showed a distribution of PARs inside the tendon tissue proper, and in the paratendinous tissue, with all four being expressed on nerves and vascular structures. Double staining showed co-localisation of PARs with nociceptive fibres expressing substance P. Concerning tenocytes, PAR2, PAR3, and PAR4, were found in both biopsies of tendon tissue and cultured tendon cells. Conclusions: This study describes the expression patterns of PARs in the mid-portion of the Achilles tendon, which can help explain the tissue changes and increased pain signalling seen in tendinopathies. These findings also show that in-vitro studies of the effects of these receptors are plausible and that PARs are a possible therapeutic target in the future treatment strategies of tendinopathy. 

Ämnesord

Medical and Health Sciences  (hsv)
Basic Medicine  (hsv)
Neurosciences  (hsv)
Medicin och hälsovetenskap  (hsv)
Medicinska grundvetenskaper  (hsv)
Neurovetenskaper  (hsv)
Medical and Health Sciences  (hsv)
Clinical Medicine  (hsv)
Neurology  (hsv)
Medicin och hälsovetenskap  (hsv)
Klinisk medicin  (hsv)
Neurologi  (hsv)

Indexterm och SAB-rubrik

Achilles tendon
Protease-activated receptor
Mast cell
Tendinopathy
Inställningar Hjälp

Beståndsinformation saknas

Om LIBRIS
Sekretess
Hjälp
Fel i posten?
Kontakt
Teknik och format
Sök utifrån
Sökrutor
Plug-ins
Bookmarklet
Anpassa
Textstorlek
Kontrast
Vyer
LIBRIS söktjänster
SwePub
Uppsök

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.

Copyright © LIBRIS - Nationella bibliotekssystem

 
pil uppåt Stäng

Kopiera och spara länken för att återkomma till aktuell vy