지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2015.1
- 수록면
- 175 - 182 (8page)
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초록· 키워드
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Previous studies suggested that myelinated axons innervating rat molar pulps undergo morphological changes in their peripheral course. However, little information is available on the morphological feature of the parent axons at the site of origin. We therefore investigated the size of the myelinated parent axons and their morphological features at the proximal sensory root of the trigeminal ganglion by horseradish peroxidase (HRP) injection into rat upper molar pulps and subsequent light and electron microscopy. A total of 248 HRP-labeled myelinated axons investigated were highly variable in the size. Fiber area, fiber diameter, axon area (axoplasm area), axon diameter (axoplasm diameter), and myelin thickness were 11.32 ± 8.36 μm2 (0.80~53.17 μm2), 3.99 ± 1.53 μm (1.08~9.26 μm), 8.70 ± 6.30 μm2 (0.70~41.83 μm2), 3.13 ± 1.13 μm (0.94~7.20 μm) and 0.43 ± 0.23 μm (0.07~1.06 μm), respectively. The g-ratio (axon diameter / fiber diameter) of the labeled axons was 0.79 ± 0.05 (0.61~0.91). Axon diameter was highly correlated with myelin thickness (correlation coefficients, r=0.83) but little correlated with g-ratio (r=−0.33) of individual myelinated parent axons. These results indicate that myelin thickness of the myelinated parent axons innervating rat molar pulps increase with increasing axon diameter, thus maintaining a constant g-ratio.
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등록된 정보가 없습니다.
참고문헌 (25)
참고문헌 신청
[학술지(정기간행물)]
Berthold CH / 1983 / Axon diameter and myelin sheath thickness in nerve fibres of the ventral spinal root of the seventh lumbar nerve of the adult and developing cat / J Ana
Blakemore WF / 1973 / Remyelination of the superior cerebellar peduncle in the mouse following demyelination induced by feeding cuprizone / J Neurol Sci 20 : 73 ~ 83
Blakemore WF / 1974 / Pattern of remyelination in the CNS / Nature 249 : 577 ~ 578
Cadden SW / 1983 / Thresholds to electrical stimulation of nerves in cat canine tooth pulp with Abeta-, Adelta-and C-fibre conduction velocities / Brain Res 261 : 31 ~ 41
Berthold CH / 1983 / Axon diameter and myelin sheath thickness in nerve fibres of the ventral spinal root of the seventh lumbar nerve of the adult and developing cat / J Ana
Blakemore WF / 1973 / Remyelination of the superior cerebellar peduncle in the mouse following demyelination induced by feeding cuprizone / J Neurol Sci 20 : 73 ~ 83
Blakemore WF / 1974 / Pattern of remyelination in the CNS / Nature 249 : 577 ~ 578
Cadden SW / 1983 / Thresholds to electrical stimulation of nerves in cat canine tooth pulp with Abeta-, Adelta-and C-fibre conduction velocities / Brain Res 261 : 31 ~ 41
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