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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
- 2018.1
- 수록면
- 155 - 160 (6page)
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초록· 키워드
오류제보하기
There exists very little information on the ultrastructure of substance P immunopositive (+) fibers in the human dental pulp, which may help in understanding the mechanism for substance P associated pulpal inflammatory pain. To address this issue, we investigated the presence of substance P+ fibers in the human dental pulp by light- and electron-microscopic immunohistochemistry. Light microscopy revealed that substance P+ fibers ran within neurovascular bundles in the radicular pulp and in the core of coronal pulp. They were also frequently present in the peripheral pulp. Substance P+ fibers showed beads like swellings interconnected by thin axonal strand, in a manner similar to bouton en passants and interconnecting axonal strand in the spinal cord. Electron microscopy revealed that almost all the substance P+ axons were unmyelinated. The axonal swellings of the substance P+ contained numerous clear round vesicles (40-50 nm in diameter) and many large dense-cored vesicles (80-110 nm in diameter) as well as many mitochondria. The vesicles and mitochondria were rarely observed in the thin axonal strand interconnecting the swellings. Intimate interrelationship or synaptic structure between the swellings of substance P+ axon and nearby pulpal cells or axons was not found. These findings suggest co-release of substance P and glutamate from the substance P+ pulpal axons and its action on nearby structures in a paracrine manner.
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등록된 정보가 없습니다.
참고문헌 (33)
참고문헌 신청
Edwall L / 1977 / A new technique for recording of intradental sensory nerve activity in man / Pain 2:121~125
Cook SP / 1997 / Distinct ATP receptors on pain-sensing and stretch- sensing neurons / Nature 387:505~508
Anderson DJ / 1967 / Osmotic stimulation of human dentine and the distribution of dental pain thresholds / Arch Oral Biol 12:417~426
Ahlquist ML / 1984 / Perception of pulpal pain as a function of intradental nerve activity / Pain 19:353~366
Byers MR / 1988 / Acute and chronic reactions of dental sensory nerve fibers to cavities and desiccation in rat molars / Anat Rec 221:872~883
Cook SP / 1997 / Distinct ATP receptors on pain-sensing and stretch- sensing neurons / Nature 387:505~508
Anderson DJ / 1967 / Osmotic stimulation of human dentine and the distribution of dental pain thresholds / Arch Oral Biol 12:417~426
Ahlquist ML / 1984 / Perception of pulpal pain as a function of intradental nerve activity / Pain 19:353~366
Byers MR / 1988 / Acute and chronic reactions of dental sensory nerve fibers to cavities and desiccation in rat molars / Anat Rec 221:872~883
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