Robert Maronpot

About Robert Maronpot

Dr. Maronpot received his doctorate of veterinary medicine in 1965 from Michigan State University, an MS in nutritional pathology from Michigan State University in 1966, and an MPH from Harvard University in 1972. He is a diplomate of the American College of Veterinary Pathologists as well as the American Board of Toxicology and has worked more than forty years in experimental pathology, with an emphasis on animal models of carcinogenesis.

Extended one-generation reproductive toxicity study evaluating gardenia blue in Sprague Dawley rats

2024-01-14T21:49:47+00:00

Gardenia blue powder was administered at 0.5%, 2.5%, or 5.0% in feed to male and female Sprague Dawley rats in an Extended One-Generation Reproductive Toxicity Study (OECD Test Guideline 443). The dosed diet began 14 days before mating and was continued at the same concentration level for the entire study for all parental [...]

Extended one-generation reproductive toxicity study evaluating gardenia blue in Sprague Dawley rats2024-01-14T21:49:47+00:00

Twelve-month in utero safety assessment of gardenia blue, a natural food colorant

2024-01-14T21:59:11+00:00

Toxicity assessment of the food colorant Gardenia jasminoides Ellis at dietary exposures of 0.0%, 0.1%, 0.5%, 1.5%, 3.0% and 5.0% included measures of T-cell- dependent antibody response, neurotoxicity, and clinical and anatomic pathology in Sprague Dawley rats during mating, gestation, lactation, postnatal development, and following weaning for up to 12 months including 3- [...]

Twelve-month in utero safety assessment of gardenia blue, a natural food colorant2024-01-14T21:59:11+00:00

Chronic toxicity and carcinogenicity study of dietary gardenia blue in Sprague Dawley rats

2024-01-14T22:01:59+00:00

In this combined chronic toxicity/carcinogenicity study of gardenia blue as a natural food color additive, Sprague Dawley rats were administered 0.5%, 2.5%, or 5.0% gardenia blue via the feed or carrier diet (0.0% gardenia blue) for 12 (chronic toxicity cohort) or 24 (carcinogenicity cohort) months. No abnormal clinical, ophthalmological, neurotoxicity or clinical pathology [...]

Chronic toxicity and carcinogenicity study of dietary gardenia blue in Sprague Dawley rats2024-01-14T22:01:59+00:00

Oral chronic toxicity and carcinogenicity study of alpha-glycosyl isoquercitrin (AGIQ) in Sprague Dawley rats

2024-01-14T22:05:00+00:00

alpha-Glycosyl isoquercitrin (AGIQ) is a flavonoid that possesses antioxidant and tumor suppressive capabilities and is marketed as a food additive in Japan. The aim of this study was to assess the potential for oral chronic toxicity and carcinogenicity of AGIQ in male and female Sprague Dawley rats following up to 5.0% dietary exposure. [...]

Oral chronic toxicity and carcinogenicity study of alpha-glycosyl isoquercitrin (AGIQ) in Sprague Dawley rats2024-01-14T22:05:00+00:00

Gardenia blue is not carcinogenic in the rasH2 mouse

2024-01-14T21:54:58+00:00

Gardenia blue is currently being considered as a naturally derived food colorant for use in the global marketplace. Methods: To assess its carcinogenic potential, 100 female and 100 male CByB6F1-Tg (HRAS)2Jic (rasH2) mice were allocated to four dose groups and exposed to gardenia blue in the diet for 26 weeks at dose levels [...]

Gardenia blue is not carcinogenic in the rasH2 mouse2024-01-14T21:54:58+00:00

Prenatal developmental toxicity of gardenia blue, a natural food colorant, in rats and rabbits

2024-01-14T21:56:03+00:00

Gardenia blue is a colorant widely used in Asia in food and beverages. The objectives of the present studies were to evaluate the maternal and prenatal embryo-fetal developmental toxicity of gardenia blue in rats and rabbits. Methods: Sprague Dawley rats and New Zealand White rabbits were administered gardenia blue daily by oral gavage [...]

Prenatal developmental toxicity of gardenia blue, a natural food colorant, in rats and rabbits2024-01-14T21:56:03+00:00

Amelioration of lipopolysaccharides-induced impairment of fear memory acquisition by alpha-glycosyl isoquercitrin through suppression of neuroinflammation in rats

2024-01-14T22:12:08+00:00

This study investigated the role of neuroinflammation in a lipopolysaccharides (LPS)-induced cognitive dysfunction model in rats using an antioxidant, α-glycosyl isoquercitrin (AGIQ). Six-week-old rats were dietary treated with 0.5% (w/w) AGIQ for 38 days, and LPS at 1 mg/kg body weight was administered intraperitoneally once daily on Days 8 and 10. On Day [...]

Amelioration of lipopolysaccharides-induced impairment of fear memory acquisition by alpha-glycosyl isoquercitrin through suppression of neuroinflammation in rats2024-01-14T22:12:08+00:00

Lack of skin sensitization hazard potential for alpha-glycosyl isoquercitrin (AGIQ) utilizing the Local Lymph Node Assay

2024-01-14T21:39:49+00:00

Skin sensitization is an important aspect of safety assessment and is a key component in the toxicological evaluation of chemicals. alpha-Glycosyl isoquercitrin (AGIQ), is marketed in Japan as a food additive and is generally recognized as safe (GRAS) by the expert panel of the Flavor and Extract Manufacturers Association (FEMA) in 2005 and [...]

Lack of skin sensitization hazard potential for alpha-glycosyl isoquercitrin (AGIQ) utilizing the Local Lymph Node Assay2024-01-14T21:39:49+00:00

Ameliorating effect of continuous alpha-glycosyl isoquercitrin treatment starting from late gestation in a rat autism model induced by postnatal injection of lipopolysaccharides

2024-01-14T21:40:05+00:00

The present study investigated the role of neuroinflammation and brain oxidative stress induced by neonatal treatment with lipopolysaccharides (LPS) on the development of autism spectrum disorder (ASD)-like behaviors and disruptive hippocampal neurogenesis in rats by exploring the chemopreventive effects of alpha-glycosyl isoquercitrin (AGIQ) as an antioxidant. AGIQ was dietary administered to dams at [...]

Ameliorating effect of continuous alpha-glycosyl isoquercitrin treatment starting from late gestation in a rat autism model induced by postnatal injection of lipopolysaccharides2024-01-14T21:40:05+00:00

alpha-Glycosyl Isoquercitrin (AGIQ) and its lack of carcinogenicity in rasH2 mice

2021-05-29T18:42:11+00:00

alpha-Glycosyl Isoquercitrin (AGIQ), is used in Japan as a food additive and was granted generally recognized as safe (GRAS) status in 2005 (FEMA) and 2007 (FDA). The safety and toxicity information for AGIQ is sparse and therefore, the carcinogenicity potential of AGIQ was examined in the CByB6F1-Tg(HRAS)2Jic (rasH2) model. One hundred female and [...]

alpha-Glycosyl Isoquercitrin (AGIQ) and its lack of carcinogenicity in rasH2 mice2021-05-29T18:42:11+00:00