Reduced prevalence of the Lucké renal adenocarcinoma in populations of Rana pipiens in Minnesota.
J Natl Cancer Inst
; 63(3): 821-4, 1979 Sep.
Article
em En
| MEDLINE
| ID: mdl-224239
ABSTRACT
Northern leopard frogs (Rana pipiens) afflicted with the Lucké renal adenocarcinoma virtually disappeared from Minnesota in the autumn of 1977. Frogs from four sites in Minnesota counties (Polk, Otter Tail, Kandiyohi, and Scott) with a previously high prevalence of Lucké renal tumor were studied. In the past decade, prevalence averaged 4.2% in 29 collections (total, 1,870 frogs). No tumors were detected in 685 frogs autopsied in the autumn of 1977 by the method of previous studies. Frog collections, each comprised of 20 or more individuals, were compared for the presence or absence of tumor-bearing frogs. Significantly fewer collections contained tumor-bearing frogs in the autumn of 1977 than did collections of previous years.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Infecções Tumorais por Vírus
/
Adenocarcinoma
/
Infecções por Herpesviridae
/
Neoplasias Renais
Tipo de estudo:
Prevalence_studies
/
Risk_factors_studies
Limite:
Animals
País/Região como assunto:
America do norte
Idioma:
En
Revista:
J Natl Cancer Inst
Ano de publicação:
1979
Tipo de documento:
Article
País de publicação:
EEUU
/
ESTADOS UNIDOS
/
ESTADOS UNIDOS DA AMERICA
/
EUA
/
UNITED STATES
/
UNITED STATES OF AMERICA
/
US
/
USA