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Acute Feeding Suppression and Toxicity of Raspberry Ketone [4-(4-hydroxyphenyl)-2-butanone] in Mice

Acute Feeding Suppression and Toxicity of Raspberry Ketone [4-(4-hydroxyphenyl)-2-butanone] in Mice

Lihong Hao, Dushyant Kshatriya, Xinyi Li, Aditi Badrinath, Zuzanna Szmacinski, Michael J Goedken, Marianne Polunas, Nicholas T Bello

Food Chem Toxicol. 2020 Jun 18;111512.

PMID: 32565406

Abstract:

Raspberry ketone (RK; [4-(4-hydroxyphenyl)-2-butanone]) is used by the food and cosmetic industry as a flavoring agent. RK is also marketed as a dietary supplement for weight maintenance and appetite control. The purpose of the study was to characterize the acute feeding suppression with RK (64-640 mg/kg) by oral gavage in male and female C57BL/6J mice. Cumulative 24 h food intake was reduced at 200 mg/kg (24% feeding suppression) in males and reliably reduced at 640 mg/kg (49-77% feeding suppression). Feeding suppression was not associated with pica behavior over the range of doses or conditioned taste aversion. In a separate experiment, a single oral gavage of RK (640 mg/kg) resulted in approximate 43% mortality rate (6 out 14 male mice) within 2 days. Atrophy of white adipose tissue, splenic abnormalities, and thymus involution were noted after 2 to 4 days after oral gavage RK. Total white blood cell count, lymphocytes, monocytes, eosinophils were significantly lower, while mean red blood cells, hemoglobin, and hematocrit were significantly higher with RK treatment. Our findings indicated a dose-dependent feeding suppression with acute RK, but doses that reliable suppress food intake are associated with pathological changes.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP5471512-A	4-(4-Hydroxyphenyl)-2-butanone		5471-51-2	Price

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