Sökning: id:"swepub:oai:DiVA.org:umu-81930" >
Human extraocular m...
-
Pedrosa-Domellöf, FatimaUmeå universitet,Anatomi,Department of Musculoskeletal Research, National Institute for Working Life, Umeå, Sweden
(författare)
Human extraocular muscles : unique pattern of myosin heavy chain expression during myotube formation
- Artikel/kapitelEngelska2000
Förlag, utgivningsår, omfång ...
-
Association for Research in Vision and Ophthalmology,2000
-
printrdacarrier
Nummerbeteckningar
-
LIBRIS-ID:oai:DiVA.org:umu-81930
-
https://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-81930URI
Kompletterande språkuppgifter
-
Språk:engelska
-
Sammanfattning på:engelska
Ingår i deldatabas
Klassifikation
-
Ämneskategori:ref swepub-contenttype
-
Ämneskategori:art swepub-publicationtype
Anmärkningar
-
PURPOSE: To study the myosin heavy chain composition of the human extraocular muscles (EOMs) during development.METHODS: EOMs from human fetuses of 8 to 22 weeks of gestation were studied with immunocytochemistry and gel electrophoresis. Antibodies specific against nine isoforms of myosin heavy chain (MyHC) were used in serial frozen sections.RESULTS: The developing EOMs had a delayed time course of myotube formation and a unique composition and distribution of MyHCs compared with human limb skeletal muscle. The primary myotubes coexpressed two developmental isoforms of MyHCI from the earliest stages. The third developmental MyHCI delineated the future orbital layer at 10 to 12 weeks of gestation. MyHC-slow tonic also appeared early, whereas MyHC alpha-cardiac and MyHC-extraocular, important components of adult EOM, were never detected at the gestational ages studied.CONCLUSIONS: The developmental features of the EOMs differed significantly from those reported for limb muscles of the corresponding ages. It is clear that the knowledge of limb muscle development does not fully apply to more specialized muscles, such as the eye muscles. The extreme complexity displayed by the EOMs probably reflects their distinct embryonic origin, innervation, and regulatory program of myogenesis.
Ämnesord och genrebeteckningar
Biuppslag (personer, institutioner, konferenser, titlar ...)
-
Holmgren, YlvaUmeå universitet,Anatomi(Swepub:umu)ylahon96
(författare)
-
Lucas, C AUniversity of Sydney
(författare)
-
Hoh, J FUniversity of Sydney
(författare)
-
Thornell, Lars-EricUmeå universitet,Anatomi,Department of Musculoskeletal Research, National Institute for Working Life, Umeå, Sweden(Swepub:umu)lath0002
(författare)
-
Umeå universitetAnatomi
(creator_code:org_t)
Sammanhörande titlar
-
Ingår i:Investigative Ophthalmology and Visual Science: Association for Research in Vision and Ophthalmology41:7, s. 1608-16160146-04041552-5783
Internetlänk
Hitta via bibliotek
Till lärosätets databas