John Curtis Seely

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Bisphenol A (BPA) was evaluated at concentrations of 0, 0.015, 0.3, 4.5, 75, 750, and 7500 ppm ( approximately 0.001, 0.02, 0.3, 5, 50, and 500 mg/kg/day of BPA) administered in the diet ad libitum to 30 CD((R)) Sprague-Dawley rats/sex/dose for 3 offspring generations, 1 litter/generation, through F3 adults. Adult systemic toxicity at 750 and 7500 ppm in(More)
Dietary bisphenol A (BPA) was evaluated in a mouse two-generation study at 0, 0.018, 0.18, 1.8, 30, 300, or 3500 ppm (0, 0.003, 0.03, 0.3, 5, 50, or 600 mg BPA/kg/day, 28 per sex per group). A concurrent positive control group of dietary 17beta-estradiol (0.5 ppm; 28 per sex) confirmed the sensitivity of CD-1 mice to an endogenous estrogen. There were no(More)
Butyl benzyl phthalate (BBP) was administered in the diet at 0, 750, 3750, and 11,250 ppm ad libitum to 30 rats per sex per dose for two offspring generations, one litter/breeding pair/generation, through weaning of F2 litters. Adult F0 systemic toxicity and adult F1 systemic and reproductive toxicity were present at 11,250 ppm (750 mg/kg per day). At(More)
No information exists on reproductive/developmental effects in mice exposed to dietary 17beta-estradiol (E2) over multiple generations. Therefore, under OECD Test Guideline 416 with enhancements, CD-1 mice (F0 generation, 25 mice/sex/group) were exposed to dietary E2 at 0, 0.001, 0.005, 0.05, 0.15, or 0.5 ppm ( approximately 0, 0.2, 1, 10, 30, or 100 mug(More)
ized, reader.For Harvard Business Review, he or she is an executive of uncommon intelligence and curiosity: the brightest CEO you know or can imagine, perhaps. We like to pretend that our ideal reader has chartered us to prepare a briefing every month.On the agenda,we’ve been told, should be three kinds of items. First, our reader says, bring me important(More)
The potential reproductive toxicity of boric acid (BORA) in CD-1 mice (Swiss) was evaluated using the Reproductive Assessment by Continuous Breeding (RACB) Protocol. BORA was administered in the feed for 27 weeks to male and female Swiss (CD-1) mice at concentrations of 0, 1000, 4500, or 9000 ppm. Estimated doses, based on feed consumption and body weight,(More)
Epidemiology studies have indicated that many human cancers are influenced by environmental factors. Genetically altered mouse model systems offer us the opportunity to study the interaction of chemicals with genetic predisposition to cancer. Using the heterozygous p53-deficient (+/-) mouse, an animal model carrying one wild type p53 gene and one p53 null(More)
Chemicals, by virtue of their varied interactions with biological molecules, are expected to differ in the way they may alter female reproduction. Reproductive toxicity may reflect effects either on the female germ cells or on various maternal processes such as ovulation, implantation, pregnancy, and parturition. In either case, the ultimate manifestation(More)
This study evaluated the potential for dietary para-nonylphenol (NP; CAS No. 84852-15-3) to affect parental fertility and growth and development of three offspring generations in CD (Sprague-Dawley [SD]) rats, including sperm counts across generations to determine the validity of equivocal reductions observed in the F2 generation by R. E. Chapin et al.(More)