Effects of aloe arborescens ingestion on azoxymethane-induced intestinal carcinogenesis and hematological and biochemical parameters of male F344 rats.
Artigo
em Inglês
| IMSEAR
| ID: sea-37910
ABSTRACT
We examined the modifying effect of freeze-dried whole-leaf Aloe arborescens Miller var. natalensis Berger (Kidachi aloe in Japan; designated as 'ALOE') on azoxymethane (AOM)-induced intestinal carcinogenesis in rats. Male F344 rats (4 weeks old) were fed basal diet or experimental diet containing 0.2% or 1% ALOE for 28 weeks. Starting two weeks later, the animals received subcutaneous injections of AOM once weekly for 10 weeks. The incidence of colorectal adenocarcinomas in the 0.2% (but not 1%) ALOE group showed a strong tendency for decrease (p = 0.056) from the control group. Further, the adenocarcinoma incidence in the entire intestine (small and large intestines) in the 0.2% ALOE group was significantly (p = 0.024) decreased compared to the control value. However, there were no significant differences in tumor multiplicities of colorectal or entire intestines among the 3 groups. In addition, we also studied the safety of long-term ingestion of ALOE as a health food or natural thickening stabilizer. Rats were fed the basal diet or 1% ALOE diet for 35 weeks without AOM treatment. Feeding with 1% ALOE did not affect most hematological and serum biochemical parameters in the rats. These results indicate that a low level of ALOE ingestion might have a mild suppressive effect on intestinal tumor growth without harmful side effects.
Texto completo:
DisponíveL
Índice:
IMSEAR (Sudeste Asiático)
Assunto principal:
Ratos
/
Ratos Endogâmicos F344
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Azoximetano
/
Masculino
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Adenocarcinoma
/
Incidência
/
Administração Oral
/
Análise de Variância
/
Cromatografia Líquida de Alta Pressão
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Aloe
Tipo de estudo:
Estudo de incidência
/
Estudo prognóstico
Idioma:
Inglês
Ano de publicação:
2006
Tipo de documento:
Artigo
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