Sural nerve biopsies from workers with a history of chronic exposure to organic solvents and from normal control cases. Morphometric and ultrastructural studies
An ultrastructural and morphometric study was performed on sural nerve biopsies of four industrial spray painters (35-59 years) and 11 controls (6-64 years). No difference could be shown in spray painters and age-matched controls as to the number of myelinated nerve fibres per area, their size distr...
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Published in | Acta neuropathologica Vol. 62; no. 1-2; p. 73 |
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Main Authors | , , , , , |
Format | Journal Article |
Language | English |
Published |
Germany
01.01.1983
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Abstract | An ultrastructural and morphometric study was performed on sural nerve biopsies of four industrial spray painters (35-59 years) and 11 controls (6-64 years). No difference could be shown in spray painters and age-matched controls as to the number of myelinated nerve fibres per area, their size distribution, variation of internodal length along single nerve fibres or the ratio between the number of myelin lamellae and the axon circumference. There was marked scattering of the two latter parameters in older exposed and and control individuals. The distribution of NADH2-tetrazolium reductase activity was similar in exposed and control cases. The general ultrastructural appearance of nodal-paranodal regions in controls conformed with that noted in experimental animals. The overall ultrastructural organization and age-related changes of nerves of exposed cases were similar to those of control cases except for a presence of paranodal axonal mitochondria which contained glycogen-like particles in exposed cases. In one exposed case abundant dispersed or clustered glycogen-like particles were seen in the paranodal axoplasm. These findings are suggested to be an effect of chronic exposure to organic solvent vapours. Ageing seems, however, to have a much greater impact on the morphology of the sural nerve fibre than occupational exposure to organic solvent. |
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AbstractList | An ultrastructural and morphometric study was performed on sural nerve biopsies of four industrial spray painters (35-59 years) and 11 controls (6-64 years). No difference could be shown in spray painters and age-matched controls as to the number of myelinated nerve fibres per area, their size distribution, variation of internodal length along single nerve fibres or the ratio between the number of myelin lamellae and the axon circumference. There was marked scattering of the two latter parameters in older exposed and and control individuals. The distribution of NADH2-tetrazolium reductase activity was similar in exposed and control cases. The general ultrastructural appearance of nodal-paranodal regions in controls conformed with that noted in experimental animals. The overall ultrastructural organization and age-related changes of nerves of exposed cases were similar to those of control cases except for a presence of paranodal axonal mitochondria which contained glycogen-like particles in exposed cases. In one exposed case abundant dispersed or clustered glycogen-like particles were seen in the paranodal axoplasm. These findings are suggested to be an effect of chronic exposure to organic solvent vapours. Ageing seems, however, to have a much greater impact on the morphology of the sural nerve fibre than occupational exposure to organic solvent. |
Author | Hildebrand, C Nordborg, C Sourander, P Conradi, S Lugnegård, H Berthold, C H |
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BackLink | https://www.ncbi.nlm.nih.gov/pubmed/6659879$$D View this record in MEDLINE/PubMed |
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Snippet | An ultrastructural and morphometric study was performed on sural nerve biopsies of four industrial spray painters (35-59 years) and 11 controls (6-64 years).... |
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SubjectTerms | Adult Age Factors Axons - ultrastructure Biopsy Child Female Humans Male Microscopy, Electron Middle Aged Mitochondria - ultrastructure Myelin Sheath - ultrastructure Nerve Fibers, Myelinated - ultrastructure Occupational Diseases - pathology Ranvier's Nodes - ultrastructure Solvents - adverse effects Spinal Nerves - ultrastructure Sural Nerve - pathology Sural Nerve - ultrastructure |
Title | Sural nerve biopsies from workers with a history of chronic exposure to organic solvents and from normal control cases. Morphometric and ultrastructural studies |
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