Early morphological features in dominantly inherited demyelinating motor and sensory neuropathy (HMSN type I). 1992

A A Gabreëls-Festen, and E M Joosten, and F J Gabreëls, and F G Jennekens, and T W Janssen-van Kempen
Institute of Neurology, University Hospital Nijmegen, The Netherlands.

Seventeen cases of dominantly inherited demyelinating motor and sensory neuropathy (HMSN type I) with infantile onset were studied. Not only clinical and electrophysiological data, but also the g ratio (axon diameter to fibre diameter), considered to be a distinguishing feature between HMSN type I and HMSN type III, showed overlap. Morphological and morphometrical investigations already revealed a lack of small and large diameter myelinated axons at an early stage, and a demyelinating process most active in early childhood followed later by axonal loss. It was concluded that the histopathology of HMSN type I cannot be sufficiently explained by axonal atrophy with secondary demyelination.

UI MeSH Term Description Entries
D008297 Male Males
D009412 Nerve Fibers Slender processes of NEURONS, including the AXONS and their glial envelopes (MYELIN SHEATH). Nerve fibers conduct nerve impulses to and from the CENTRAL NERVOUS SYSTEM. Cerebellar Mossy Fibers,Mossy Fibers, Cerebellar,Cerebellar Mossy Fiber,Mossy Fiber, Cerebellar,Nerve Fiber
D009431 Neural Conduction The propagation of the NERVE IMPULSE along the nerve away from the site of an excitation stimulus. Nerve Conduction,Conduction, Nerve,Conduction, Neural,Conductions, Nerve,Conductions, Neural,Nerve Conductions,Neural Conductions
D010375 Pedigree The record of descent or ancestry, particularly of a particular condition or trait, indicating individual family members, their relationships, and their status with respect to the trait or condition. Family Tree,Genealogical Tree,Genealogic Tree,Genetic Identity,Identity, Genetic,Family Trees,Genealogic Trees,Genealogical Trees,Genetic Identities,Identities, Genetic,Tree, Family,Tree, Genealogic,Tree, Genealogical,Trees, Family,Trees, Genealogic,Trees, Genealogical
D010543 Peroneal Nerve The lateral of the two terminal branches of the sciatic nerve. The peroneal (or fibular) nerve provides motor and sensory innervation to parts of the leg and foot. Fibular Nerve,Fibular Nerves,Nerve, Fibular,Nerve, Peroneal,Nerves, Fibular,Nerves, Peroneal,Peroneal Nerves
D002648 Child A person 6 to 12 years of age. An individual 2 to 5 years old is CHILD, PRESCHOOL. Children
D002675 Child, Preschool A child between the ages of 2 and 5. Children, Preschool,Preschool Child,Preschool Children
D004594 Electrophysiology The study of the generation and behavior of electrical charges in living organisms particularly the nervous system and the effects of electricity on living organisms.
D005260 Female Females
D005500 Follow-Up Studies Studies in which individuals or populations are followed to assess the outcome of exposures, procedures, or effects of a characteristic, e.g., occurrence of disease. Followup Studies,Follow Up Studies,Follow-Up Study,Followup Study,Studies, Follow-Up,Studies, Followup,Study, Follow-Up,Study, Followup

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