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1.
El-Minia Medical Bulletin. 1999; 10 (1): 114-130
Dans Anglais | IMEMR | ID: emr-50685

Résumé

The present study investigated ultrastructurally the recurrent aphthous ulcers [RAU] during its active and healing phases with special emphasis to it's correlation with the possible variable etiological factors. Eighteen Egyptian patients suffering from RAU with no other systemic diseases were included in the present study. Detailed light, scanning and transmission electronic microscopic examination of the excised RAU were performed. The epithelium over RAU area showed de-epithelization and extensive polymorphs and mononuclear infiltrates with perivasculitis. In conclusion, the present study was able to document for the first time the different spatial or temporal ultrastructural changes that occur during an active and healing phases of EAU, moreover, fungal involvement as an etiological factor whether primary or a merely secondary was postulated. Such fungal finding may account for both resistance to medication and recurrence of aphthous ulceration


Sujets)
Humains , Mâle , Femelle , Récidive , Microscopie électronique en transmission à balayage
2.
El-Minia Medical Bulletin. 1997; 8 (2): 155-164
Dans Anglais | IMEMR | ID: emr-44642

Résumé

The anatomy, structure and innervation of the posterior cricoarytenoid muscle [PCA] were investigated in the goat as an animal model. The results revealed that the PCA muscle was composed of three bellies with distinct attachments and different angles of convergence of the muscle fibers onto the arytenoid cartilage with thin facial lamina in between the bellies. The nerve supply of the muscle arose as a single branch from the recurrent laryngeal nerve and entered the muscle through its lateral border and directed upwards and medially to end in the horizontal belly from the main nerve and branches sprouted to other bellies. SO, each belly was composed almost completely of dark muscle fibers, whereas the oblique and vertical bellies were formed of a mixture of pale and dark fibers. Silver impregnated sections illustrated simple and single motor endings supplied with relatively thin nerve fibers


Sujets)
Animaux , Muscles/anatomie et histologie , Techniques histologiques , Glotte/physiologie
3.
New Egyptian Journal of Medicine [The]. 1994; 10 (2): 1008-1014
Dans Anglais | IMEMR | ID: emr-34117
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