Histopathologic study of squamous cell carcinoma of the gingiva in edentulous and dentulous jaws of hamsters treated with N-methylnitrosourea.
Identifieur interne : 004626 ( Ncbi/Curation ); précédent : 004625; suivant : 004627Histopathologic study of squamous cell carcinoma of the gingiva in edentulous and dentulous jaws of hamsters treated with N-methylnitrosourea.
Auteurs : T. Kohgo [Japon] ; H G Uy ; T. Iizuka ; M. Shindoh ; A. AmemiyaSource :
- Journal of oral pathology & medicine : official publication of the International Association of Oral Pathologists and the American Academy of Oral Pathology [ 0904-2512 ] ; 1990.
Descripteurs français
- KwdFr :
- 1-Méthyl-1-nitroso-urée (effets indésirables), Animaux, Carcinome épidermoïde (), Carcinome épidermoïde (anatomopathologie), Cricetinae, Denture, Desmodonte (anatomopathologie), Incidence, Invasion tumorale, Mesocricetus, Mâchoire édentée, Mâle, Occlusion dentaire, Processus alvéolaire (anatomopathologie), Tissu conjonctif (anatomopathologie), Tumeur de la gencive (), Tumeur de la gencive (anatomopathologie), Épithélium (anatomopathologie).
- MESH :
- anatomopathologie : Carcinome épidermoïde, Desmodonte, Processus alvéolaire, Tissu conjonctif, Tumeur de la gencive, Épithélium.
- effets indésirables : 1-Méthyl-1-nitroso-urée.
- Animaux, Carcinome épidermoïde, Cricetinae, Denture, Incidence, Invasion tumorale, Mesocricetus, Mâchoire édentée, Mâle, Occlusion dentaire, Tumeur de la gencive.
English descriptors
- KwdEn :
- Alveolar Process (pathology), Animals, Carcinoma, Squamous Cell (chemically induced), Carcinoma, Squamous Cell (pathology), Connective Tissue (pathology), Cricetinae, Dental Occlusion, Dentition, Epithelium (pathology), Gingival Neoplasms (chemically induced), Gingival Neoplasms (pathology), Incidence, Jaw, Edentulous, Male, Mesocricetus, Methylnitrosourea (adverse effects), Neoplasm Invasiveness, Periodontal Ligament (pathology).
- MESH :
- chemical , adverse effects : Methylnitrosourea.
- chemically induced : Carcinoma, Squamous Cell, Gingival Neoplasms.
- pathology : Alveolar Process, Carcinoma, Squamous Cell, Connective Tissue, Epithelium, Gingival Neoplasms, Periodontal Ligament.
- Animals, Cricetinae, Dental Occlusion, Dentition, Incidence, Jaw, Edentulous, Male, Mesocricetus, Neoplasm Invasiveness.
Abstract
Unilateral maxillary or mandibular molars were extracted from twenty-four, 25-day-old male syrian golden hamsters; 25 days after extraction, 20 received MNU intragastrically twice a week for 3 months. All animals were killed 1 month later. High degrees and incidence of invasion of gingival SCC were observed in dentulous jaws without functional occlusion, followed by dentulous jaws with functional occlusion and edentulous jaws. Invasion of carcinomas with extensive bone destruction was observed commonly in the gingiva of dentulous maxillary jaws without functional occlusion, but was scarcely observed in the gingiva of edentulous jaws. By analogy, disuse atrophy of the periodontium due to loss of functional occlusion may result in early deeper invasion, while loss of periodontal ligament due to tooth extraction and disappearance of so-called inner gingival epithelium may result in less invasive carcinomas.
PubMed: 2359038
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Iizuka</name></author><author><name sortKey="Shindoh, M" sort="Shindoh, M" uniqKey="Shindoh M" first="M" last="Shindoh">M. Shindoh</name></author><author><name sortKey="Amemiya, A" sort="Amemiya, A" uniqKey="Amemiya A" first="A" last="Amemiya">A. 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Kohgo</name><affiliation wicri:level="1"><nlm:affiliation>Department of Oral Pathology, Hokkaido University School of Dentistry, Sapporo, Japan.</nlm:affiliation><country xml:lang="fr">Japon</country><wicri:regionArea>Department of Oral Pathology, Hokkaido University School of Dentistry, Sapporo</wicri:regionArea><wicri:noRegion>Sapporo</wicri:noRegion></affiliation></author><author><name sortKey="Uy, H G" sort="Uy, H G" uniqKey="Uy H" first="H G" last="Uy">H G Uy</name></author><author><name sortKey="Iizuka, T" sort="Iizuka, T" uniqKey="Iizuka T" first="T" last="Iizuka">T. Iizuka</name></author><author><name sortKey="Shindoh, M" sort="Shindoh, M" uniqKey="Shindoh M" first="M" last="Shindoh">M. Shindoh</name></author><author><name sortKey="Amemiya, A" sort="Amemiya, A" uniqKey="Amemiya A" first="A" last="Amemiya">A. Amemiya</name></author></analytic><series><title level="j">Journal of oral pathology & medicine : official publication of the International Association of Oral Pathologists and the American Academy of Oral Pathology</title><idno type="ISSN">0904-2512</idno><imprint><date when="1990" type="published">1990</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Alveolar Process (pathology)</term><term>Animals</term><term>Carcinoma, Squamous Cell (chemically induced)</term><term>Carcinoma, Squamous Cell (pathology)</term><term>Connective Tissue (pathology)</term><term>Cricetinae</term><term>Dental Occlusion</term><term>Dentition</term><term>Epithelium (pathology)</term><term>Gingival Neoplasms (chemically induced)</term><term>Gingival Neoplasms (pathology)</term><term>Incidence</term><term>Jaw, Edentulous</term><term>Male</term><term>Mesocricetus</term><term>Methylnitrosourea (adverse effects)</term><term>Neoplasm Invasiveness</term><term>Periodontal Ligament (pathology)</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>1-Méthyl-1-nitroso-urée (effets indésirables)</term><term>Animaux</term><term>Carcinome épidermoïde ()</term><term>Carcinome épidermoïde (anatomopathologie)</term><term>Cricetinae</term><term>Denture</term><term>Desmodonte (anatomopathologie)</term><term>Incidence</term><term>Invasion tumorale</term><term>Mesocricetus</term><term>Mâchoire édentée</term><term>Mâle</term><term>Occlusion dentaire</term><term>Processus alvéolaire (anatomopathologie)</term><term>Tissu conjonctif (anatomopathologie)</term><term>Tumeur de la gencive ()</term><term>Tumeur de la gencive (anatomopathologie)</term><term>Épithélium (anatomopathologie)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="adverse effects" xml:lang="en"><term>Methylnitrosourea</term></keywords><keywords scheme="MESH" qualifier="anatomopathologie" xml:lang="fr"><term>Carcinome épidermoïde</term><term>Desmodonte</term><term>Processus alvéolaire</term><term>Tissu conjonctif</term><term>Tumeur de la gencive</term><term>Épithélium</term></keywords><keywords scheme="MESH" qualifier="chemically induced" xml:lang="en"><term>Carcinoma, Squamous Cell</term><term>Gingival Neoplasms</term></keywords><keywords scheme="MESH" qualifier="effets indésirables" xml:lang="fr"><term>1-Méthyl-1-nitroso-urée</term></keywords><keywords scheme="MESH" qualifier="pathology" xml:lang="en"><term>Alveolar Process</term><term>Carcinoma, Squamous Cell</term><term>Connective Tissue</term><term>Epithelium</term><term>Gingival Neoplasms</term><term>Periodontal Ligament</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Animals</term><term>Cricetinae</term><term>Dental Occlusion</term><term>Dentition</term><term>Incidence</term><term>Jaw, Edentulous</term><term>Male</term><term>Mesocricetus</term><term>Neoplasm Invasiveness</term></keywords><keywords scheme="MESH" xml:lang="fr"><term>Animaux</term><term>Carcinome épidermoïde</term><term>Cricetinae</term><term>Denture</term><term>Incidence</term><term>Invasion tumorale</term><term>Mesocricetus</term><term>Mâchoire édentée</term><term>Mâle</term><term>Occlusion dentaire</term><term>Tumeur de la gencive</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Unilateral maxillary or mandibular molars were extracted from twenty-four, 25-day-old male syrian golden hamsters; 25 days after extraction, 20 received MNU intragastrically twice a week for 3 months. All animals were killed 1 month later. High degrees and incidence of invasion of gingival SCC were observed in dentulous jaws without functional occlusion, followed by dentulous jaws with functional occlusion and edentulous jaws. Invasion of carcinomas with extensive bone destruction was observed commonly in the gingiva of dentulous maxillary jaws without functional occlusion, but was scarcely observed in the gingiva of edentulous jaws. By analogy, disuse atrophy of the periodontium due to loss of functional occlusion may result in early deeper invasion, while loss of periodontal ligament due to tooth extraction and disappearance of so-called inner gingival epithelium may result in less invasive carcinomas.</div></front></TEI></record>Pour manipuler ce document sous Unix (Dilib)
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