Toxicological assessment of enzyme-treated Zizania latifolia extract: Oral toxicology and genotoxicity in rats.
Regul Toxicol Pharmacol
; 133: 105220, 2022 Aug.
Article
em En
| MEDLINE
| ID: mdl-35792245
ABSTRACT
Zizania latifolia Turcz. has long been used as a food source in Southeast Asia. The grains, stems, and leaves of Z. latifolia and its major component, tricin, have also been studied to determine their biological activities. Previously, we hydrolyzed the aerial part of Z. latifolia using an enzyme mixture to maximize the tricin content of the Z. latifolia extract. However, the safety of enzyme-treated Z. latifolia extract (ETZL; DermaNiA™) has not yet been determined. In this study, we performed an in vivo 90-day repeated-dose evaluation and genotoxicity study to assess the toxicological potential of ETZL. EZTL did not exhibit genotoxicity in the bacterial reverse mutation test, in vitro chromosomal aberration assay, or in vivo micronucleus test. Moreover, no changes in body weight or hematological and serum biological parameters were observed in male or female rats under high-dose EZTL treatment (5000 mg/kg body weight (bw)/day) for 90 days with a 4-week recovery period. Significant changes were noted in the forestomach, kidneys, and adrenal glands in the test groups, but these changes, or tendency for recovery, were not observed in the recovery group. Based on these data, the no adverse effect level was determined to be 1250 mg/kg bw/day in rats.
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Base de dados:
MEDLINE
Assunto principal:
Extratos Vegetais
/
Folhas de Planta
Idioma:
En
Revista:
Regul Toxicol Pharmacol
Ano de publicação:
2022
Tipo de documento:
Article
País de afiliação:
Coréia do Sul