Growth and transformation of the mandibular joint in the rat; hypophysectomized female rats
| Autor: | Herbert M. Evans, Hermann Becks, Miriam E. Simpson, Daniel A. Collins |
|---|---|
| Rok vydání: | 2010 |
| Předmět: |
medicine.medical_specialty
Hypophysectomy Bone development medicine.medical_treatment Mandible Biology Condyle Internal medicine medicine Animals Maxillofacial Development Bone Development Temporomandibular Joint Ossification Cartilage General Medicine Chondrogenesis Rats Endocrinology medicine.anatomical_structure Jaw Pituitary Gland Female Growth and Development medicine.symptom Bones growth |
| Zdroj: | American journal of orthodontics and oral surgery. 32 |
| ISSN: | 0096-6347 |
| Popis: | The mandibular joint was studied in 79 hypophysectomized female rats at postoperative intervals ranging from 4 to 645 days. The transformations occurring following hypophysectomy are similar to those occurring in aging rats. The changes occur, however, very much earlier in the hypophysectomized rat; chondrogenesis is considerably slowed within four days after the operation. The ossification of the mandible of the hypophysectomized rat by twenty-eight days after operation is as advanced as in a 258-day-old normal rat. As in the normal rat some uncalcified cartilage remains in the condyle for long periods. The persistence of this tissue confers upon this joint the continued capacity for growth and remodeling. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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