RESUMO
This report describes a rare case of congenital oligodontia of the deciduous teeth and anodontia of the permanent teeth in a cat. According to cat's veterinarian, the patient had only two deciduous upper canines and no permanent teeth had ever erupted. Post-mortem evaluation showed a complete absence of teeth in the oral cavity and inflammatory lesions were not found on the gums. Histopathological analysis of serial sections of maxilla and mandible revealed absence of odontogenic epithelium, inflammatory cells and odontoclastic resorptive lesions. Diagnosis was confirmed after both the establishment that there were no remaining dental structures and the exclusion of other relevant diseases that lead to tooth loss, such as periodontal disease, renal fibrous osteodystrophy, odontoclastic resorptive lesions, ectodermal dysplasia and trauma.
Assuntos
Doenças do Gato/congênito , Gatos/anormalidades , Anormalidades Dentárias/veterinária , Dente Decíduo/anormalidades , Animais , Anodontia/veterinária , Autopsia/veterinária , Mandíbula/patologia , Maxila/patologiaRESUMO
A relação tireóide-gônadas sobre o perfil hematológico foi investigada em ratas Wistar adultas castradas e não castradas mantidas em hipotireoidismo induzido pela administração diária de propiltiouracil por 120 dias. Dois grupos eutireóideos não castrado e castrado foram mantidos nas mesmas condições e serviram como controle. Foram colhidos o plasma para dosagem de T4 livre e o sangue para análise hematológica. Os valores de T4 livre significativamente menores nas ratas tratadas confirmaram seu estado hipotireóideo. O hipotireoidismo causou anemia apenas em ratas com gônadas funcionais, já que a castração reverteu os efeitos do déficit de tiroxina sobre o eritrograma. Tanto o hipotireoidismo quanto o hipogonadismo apresentaram pouco significado sobre o leucograma.
Assuntos
Animais , Feminino , Ratos , Hipotireoidismo/sangue , Ovariectomia , Ratos WistarRESUMO
The relationship between thyroid-gonads on the blood profile was investigated in adult Wistar female rats. These animals were either castrated or intact and were kept under hypothyroidism, induced by daily administration of propylthiouracil (PTU) during 120 days. Two groups (castrated and intact) were kept in an euthyroid condition and used as controls. It was collected plasma for free T4 dosage and blood for hematological analysis. The significant low values of free T4 in the treated rats confirmed their hypothyroid state. The hypothyroidism caused anemia in the rats with functional gonads. The castration reverted the effects of thyroxine deficit in the erythrogram. Both the hypothyroidism and the hypogonadism showed just a discret effect on the leucogram.