Research Topics
| R W TylSummaryAffiliation: RTI International Country: USA Publications
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Detail Information
Publications
Commentary on the role of maternal toxicity on developmental toxicityRochelle W Tyl
Discovery and Analytical Sciences, RTI International, Research Triangle Park, NC 27709 2194, USA
Birth Defects Res B Dev Reprod Toxicol 95:262-6. 2012..These assays inform mechanism and hazard, but NOT risk. The Environmental Protection Agency currently estimates that these new assays are approximately 70% accurate versus the whole animal tests...
Identification and interpretation of developmental neurotoxicity effects: a report from the ILSI Research Foundation/Risk Science Institute expert working group on neurodevelopmental endpointsRochelle W Tyl
RTI International, USA
Neurotoxicol Teratol 30:349-81. 2008..This review provides a framework for the integration of all these types of information in the interpretation of DNT studies...
One-generation reproductive toxicity study of dietary 17beta-estradiol (E2; CAS No. 50-28-2) in CD-1 (Swiss) miceRochelle W Tyl
Health Sciences Unit, RTI International, Research Triangle Park, NC 27709 2194, United States
Reprod Toxicol 25:144-60. 2008..At 0.05 ppm: no F0 reproductive effects, increased F1 weanling UCVW; delayed PPS. The NOEL was 0.005 ppm ( approximately 1 microg/kg/day)...
Three-generation evaluation of dietary para-nonylphenol in CD (Sprague-Dawley) ratsRochelle W Tyl
RTI International and Experimental Pathology Laboratories, 3040 Cornwallis Road, Research Triangle Park, NC 27709, USA
Toxicol Sci 92:295-310. 2006....
Two-generation reproductive toxicity study of dietary bisphenol A in CD-1 (Swiss) miceRochelle W Tyl
Health Sciences Unit, RTI International, Research Triangle Park, North Carolina 27709, USA
Toxicol Sci 104:362-84. 2008..Therefore, BPA is not considered a selective reproductive or developmental toxicant in mice...
Two-generation reproductive toxicity study of inhaled tertiary amyl methyl ether (TAME) vapor in CD ratsR W Tyl
RTI International, Research Triangle Park, NC 27709 2194, USA
J Appl Toxicol 23:397-410. 2003..The F1 and F2 offspring toxicity was present at 1500 and 3000 ppm. The no-observable-adverse-effect level for adult systemic and offspring toxicity was 250 ppm and 1500 ppm for male reproductive toxicity (females at >3000 ppm)...
Commentary to the CERHR expert panel report on bisphenol ARochelle W Tyl
Developmental and Reproductive Toxicology (DART, RTI International, 3040 Cornwallis Road, Research Triangle Park, NC 27709-2194, USA
Birth Defects Res B Dev Reprod Toxicol 83:152. 2008
Basic exploratory research versus guideline-compliant studies used for hazard evaluation and risk assessment: bisphenol A as a case studyRochelle W Tyl
RTI International, Research Triangle Park, North Carolina 27709 2194, USA
Environ Health Perspect 117:1644-51. 2009..They also specifically criticized our published guideline-compliant dietary studies on BPA in rats and mice and 17beta-estradiol (E(2)) in mice...
Developmental toxicity evaluation of sodium thioglycolate administered topically to Sprague-Dawley (CD) rats and New Zealand White rabbitsR W Tyl
RTI International, Center for Life Sciences and Toxicology, Research Triangle Park, North Carolina 27709 2194, USA
Birth Defects Res B Dev Reprod Toxicol 68:144-61. 2003..Sodium thioglycolate, which has widespread occupational and consumer exposure to women from cosmetics and hair-care products, was evaluated for developmental toxicity by topical exposure during the embryonic and fetal periods of pregnancy..
In honor of the Teratology Society's 50th anniversary: The role of Teratology Society members in the development and evolution of in vivo developmental toxicity test guidelinesRochelle W Tyl
Department of Pharmacology and Toxicology, RTI International, Research Triangle Park, NC 27709 2194, USA
Birth Defects Res C Embryo Today 90:99-102. 2010..Our Society and its journal have played vital roles in the scientific and regulatory accomplishments in birth defects research over the past 50 years and will continue to do so in the future. Happy 50th anniversary!..
Effects of acrylamide on rodent reproductive performanceRochelle W Tyl
RTI, Center for Life Sciences and Toxicology, PO Box 12194, 3040 Cornwallis Road, Research Triangle Park, NC 27709 2194, USA
Reprod Toxicol 17:1-13. 2003..Glycidamide-induced mutations appear to play no role in reproductive or neurologic toxicity...
Validation of the intact rat weanling uterotrophic assay with notes on the formulation and analysis of the positive control chemical in vehicleRochelle W Tyl
RTI International, Research Triangle Park, NC 27709 2194, USA
J Appl Toxicol 30:694-8. 2010..0 µg kg⁻¹ per day. Therefore, this intact weanling uterotrophic assay is validated in our laboratory for use under US and European endocrine toxicity testing programs/legislation...
Three-generation reproductive toxicity study of dietary bisphenol A in CD Sprague-Dawley ratsR W Tyl
RTI, Research Triangle Park, North Carolina 27709 2194, USA
Toxicol Sci 68:121-46. 2002..001-5 mg/kg/day) on any parameters and no evidence of nonmonotonic dose-response curves across generations for either sex. BPA should not be considered a selective reproductive toxicant, based on the results of this study...
Rat two-generation reproduction and dominant lethal study of acrylamide in drinking waterR W Tyla
Bushy Run Research Center Union Carbide Corp, Export, PA, USA
Reprod Toxicol 14:385-401. 2000..The NOEL for prenatal DL was 2.0 mg/kg/day; the NOEL for adult systemic toxicity, including neurotoxicity, was < or = 0.5 mg/kg/day. Therefore, neurotoxicity and DL were differentially affected...
Relationship between acrylamide reproductive and neurotoxicity in male ratsR W Tyl
Research Triangle Institute, PO Box 12194, Research Triangle Park, NC 27709 2194, USA
Reprod Toxicol 14:147-57. 2000..Therefore, epididymal sperm, mating, and neurotoxic effects were observed at AM doses that also resulted in increased postimplantation loss, possibly by different mechanisms...
Two-generation reproductive toxicity study of inhaled toluene diisocyanate vapor in CD ratsR W Tyl
Bushy Run Research Center, Export, Pennsylvania, USA
Toxicol Sci 52:258-68. 1999..Therefore, under the conditions of this study, a no observed adverse effect level (NOAEL) was not determined for adult toxicity; the NOAEL for reproductive toxicity was at least 0.3 ppm, and the NOAEL for postnatal toxicity was 0.02 ppm...
Developmental toxicity evaluation of inhaled toluene diisocyanate vapor in CD ratsR W Tyl
Bushy Run Research Center, Export, Pennsylvania, USA
Toxicol Sci 52:248-57. 1999..50 ppm no observed adverse effect level (NOAEL) for maternal and developmental toxicity was 0.10 ppm. No treatment-related embryotoxicity or teratogenicity was observed...
Altered axial skeletal developmentRochelle W Tyl
Center for Life Sciences and Toxicology, Research Triangle Institute, Research Triangle Park, North Carolina 27709 2194, USA
Birth Defects Res B Dev Reprod Toxicol 80:451-72. 2007..Tables of the spontaneous incidence of axial anomalies in both humans and animals are provided...
A review of adverse pregnancy outcomes and formaldehyde exposure in human and animal studiesJ J Collins
Solutia Inc, Pittsburgh, Pennsylvania, USA
Regul Toxicol Pharmacol 34:17-34. 2001..However, information from experimental studies and studies of metabolism indicate reproductive impacts are unlikely at formaldehyde exposures levels observed in the epidemiology studies...
Reproductive toxicity evaluation of dietary butyl benzyl phthalate (BBP) in ratsRochelle W Tyl
RTI International, 245 HLB MCB, P O Box 12194, 3040 Cornwallis Road, Research Triangle Park, NC, USA
Reprod Toxicol 18:241-64. 2004..The offspring toxicity no observable effect level (NOEL) was 750 ppm, based on the presence of reduced AGD in F1 and F2 males at birth at 3750 ppm, but no effects on reproductive development, structures, or functions...
Developmental toxicity evaluation of Bendectin in CD ratsR W Tyl
Research Triangle Institute, Research Triangle Park, North Carolina 27709
Teratology 37:539-52. 1988..In conclusion, the incidence of litters with one or more malformed fetuses was increased only at a dose of Bendectin which produced maternal mortality (17.1%) and other indices of maternal and developmental toxicity (see Discussion)...
Two-generation reproductive toxicity evaluation of dietary 17beta-estradiol (E2; CAS No. 50-28-2) in CD-1 (Swiss) miceRochelle W Tyl
Health Sciences Unit, RTI International, Research Triangle Park, North Carolina 27709, USA
Toxicol Sci 102:392-412. 2008..The no observable effect level was 0.005 ppm E2 ( approximately 1 mug/kg/day). Therefore, the mouse model is sensitive to E2 by oral administration, with effects on reproductive development at doses of 10- 100 mug/kg/day...
Developmental toxicity evaluation of inhaled tertiary amyl methyl ether in mice and ratsFrank Welsch
CIIT Centers for Health Research, 6 Davis Drive (PO Box 12137, Research Triangle Park, NC 27709-2137, USA
J Appl Toxicol 23:387-95. 2003..Therefore, the NOAEL for the mouse maternal and developmental toxicity was 250 ppm under the conditions of this study...
Transmission of mutations in the lacI transgene to the offspring of ENU-treated Big Blue male miceLois B Barnett
RTI International, Research Triangle Park, North Carolina, USA
Environ Mol Mutagen 40:251-7. 2002..These data provide preliminary evidence for the biological validity of assessing induced, heritable mutations using transgenic mice, without the need for generating an F(1) generation...
Bisphenol A: findings of a multigenerational rat studyRochelle W Tyl
Environ Health Perspect 111:A632. 2003
Current and potential rodent screens and tests for thyroid toxicantsR Thomas Zoeller
Biology Department, Morrill Science Center, University of Massachusetts Amherst, Amherst, Massachusetts 01003, USA
Crit Rev Toxicol 37:55-95. 2007..Finally, the importance of understanding the relationship between timing of exposure, duration of dose, and time of acquisition of the endpoints in interpreting the results of the in vivo assays is emphasized...
Environmental factors and puberty timing: expert panel research needsGermaine M Buck Louis
Epidemiology Branch, Division of Epidemiology, Statistics and Prevention Research, National Institute of Child Health and Human Development, 6100 Executive Blvd, Room 7B03, Rockville, MD 20852, USA
Pediatrics 121:S192-207. 2008..Coupled with comparative species studies, such research may provide insight regarding the causal ordering of events that underlie pubertal onset and progression and their role in the pathway of adult-onset disease...
Occupational exposure to glycol ethers and human congenital malformationsGeorge Maldonado
School of Public Health, University of Minnesota, 420 Delaware St SE, Mayo Mail Code 807, Minneapolis, MN 55455 0392, USA
Int Arch Occup Environ Health 76:405-23. 2003..This commentary reviews toxicological information and critically evaluates epidemiological information on the relationship between glycol ethers and congenital malformations...
