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Cole AL, Croce A, Harvey JB, Enders B, Perry K, Hedgespeth BA, Terumi Negrão Watanabe T. Pathology in Practice. J Am Vet Med Assoc 2022; 259:1-4. [PMID: 35587905 DOI: 10.2460/javma.21.07.0352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
In collaboration with the American College of Veterinary Pathologists.
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Affiliation(s)
- Allysa L Cole
- College of Veterinary Medicine, University of Illinois at Urbana-Champaign, Urbana, IL
| | - Andelience Croce
- Department of Population Health and Pathobiology, College of Veterinary Medicine, North Carolina State University, Raleigh, NC
| | - Janice B Harvey
- Department of Population Health and Pathobiology, College of Veterinary Medicine, North Carolina State University, Raleigh, NC
| | - Brittany Enders
- Department of Clinical Sciences, College of Veterinary Medicine, North Carolina State University, Raleigh, NC
| | - Kayla Perry
- Department of Clinical Sciences, College of Veterinary Medicine, North Carolina State University, Raleigh, NC
| | - Barry A Hedgespeth
- Department of Molecular Biomedical Sciences, College of Veterinary Medicine, North Carolina State University, Raleigh, NC
| | - Tatiane Terumi Negrão Watanabe
- Department of Population Health and Pathobiology, College of Veterinary Medicine, North Carolina State University, Raleigh, NC
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Cope HA, Blake BE, Love C, McCord J, Elmore SA, Harvey JB, Chappell VA, Fenton SE. Latent, sex-specific metabolic health effects in CD-1 mouse offspring exposed to PFOA or HFPO-DA (GenX) during gestation. Emerg Contam 2021; 7:219-235. [PMID: 35097227 PMCID: PMC8794304 DOI: 10.1016/j.emcon.2021.10.004] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
BACKGROUND Perfluorooctanoic acid (PFOA) is an environmental contaminant associated with adverse metabolic outcomes in developmentally exposed human populations and mouse models. Hexafluoropropylene oxide-dimer acid (HFPO-DA, commonly called GenX) has replaced PFOA in many industrial applications in the U.S. and Europe and has been measured in global water systems from <1 to 9350 ng/L HFPO-DA. Health effects data for GenX are lacking. OBJECTIVE Determine the effects of gestational exposure to GenX on offspring weight gain trajectory, adult metabolic health, liver pathology and key adipose gene pathways in male and female CD-1 mice. METHODS Daily oral doses of GenX (0.2, 1.0, 2.0 mg/kg), PFOA (0.1, 1.0 mg/kg), or vehicle control were administered to pregnant mice (gestation days 1.5-17.5). Offspring were fed a high- or low-fat diet (HFD or LFD) at weaning until necropsy at 6 or 18 weeks, and metabolic endpoints were measured over time. PFOA and GenX serum and urine concentrations, weight gain, serum lipid parameters, body mass composition, glucose tolerance, white adipose tissue gene expression, and liver histopathology were evaluated. RESULTS Prenatal exposure to GenX led to its accumulation in the serum and urine of 5-day old pups (P = 0.007, P < 0.001), which was undetectable by weaning. By 18 weeks of age, male mice fed LFD in the 2.0 mg/kg GenX group displayed increased weight gain (P < 0.05), fat mass (P = 0.016), hepatocellular microvesicular fatty change (P = 0.015), and insulin sensitivity (P = 0.014) in comparison to control males fed LFD. Female mice fed HFD had a significant increase in hepatocyte single cell necrosis in 1.0 mg/kg GenX group (P = 0.022) and 1.0 mg/kg PFOA group (P = 0.003) compared to control HFD females. Both sexes were affected by gestational GenX exposure; however, the observed phenotype varied between sex with males displaying more characteristics of metabolic disease and females exhibiting liver damage in response to the gestational exposure. CONCLUSIONS Prenatal exposure to 1 mg/kg GenX and 1 mg/kg PFOA induces adverse metabolic outcomes in adult mice that are diet- and sex-dependent. GenX also accumulated in pup serum, suggesting that placental and potentially lactational transfer are important exposure routes for GenX.
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Affiliation(s)
- Harlie A. Cope
- National Toxicology Program Laboratory, Division of the National Toxicology Program (DNTP), National Institutes of Environmental Health Sciences (NIEHS), National Institutes of Health (NIH), Research Triangle Park, NC, USA
| | - Bevin E. Blake
- National Toxicology Program Laboratory, Division of the National Toxicology Program (DNTP), National Institutes of Environmental Health Sciences (NIEHS), National Institutes of Health (NIH), Research Triangle Park, NC, USA
| | - Charlotte Love
- National Toxicology Program Laboratory, Division of the National Toxicology Program (DNTP), National Institutes of Environmental Health Sciences (NIEHS), National Institutes of Health (NIH), Research Triangle Park, NC, USA
| | - James McCord
- Multimedia Methods Branch, Center for Environmental Measurement and Modeling, Office of Research and Development, U.S. Environmental Protection Agency, RTP, NC, USA
| | - Susan A. Elmore
- Cellular and Molecular Pathology Branch, DNTP, NIEHS, NIH, RTP, NC, USA
| | - Janice B. Harvey
- Cellular and Molecular Pathology Branch, DNTP, NIEHS, NIH, RTP, NC, USA
| | - Vesna A. Chappell
- National Toxicology Program Laboratory, Division of the National Toxicology Program (DNTP), National Institutes of Environmental Health Sciences (NIEHS), National Institutes of Health (NIH), Research Triangle Park, NC, USA
| | - Suzanne E. Fenton
- National Toxicology Program Laboratory, Division of the National Toxicology Program (DNTP), National Institutes of Environmental Health Sciences (NIEHS), National Institutes of Health (NIH), Research Triangle Park, NC, USA
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Harvey JB, Osborne TS, Hong HHL, Bhusari S, Ton TV, Pandiri AR, Masinde T, Dunnick J, Peddada S, Elmore S, Hoenerhoff MJ. Uterine Carcinomas in Tetrabromobisphenol A-exposed Wistar Han Rats Harbor Increased Tp53 Mutations and Mimic High-grade Type I Endometrial Carcinomas in Women. Toxicol Pathol 2015; 43:1103-13. [PMID: 26353976 PMCID: PMC4670270 DOI: 10.1177/0192623315599256] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Endometrial carcinoma is the most common gynecologic malignancy is the United States and accounts for 6% of all cancers in women. The disease is classified as type I or type II based on clinicopathologic and molecular features. It is a multifactorial disease with a number of risk factors, including environmental exposures. How environmental exposures, such as flame retardants, may affect the incidence of endometrial cancer is a topic of current and ongoing interest. Tetrabromobisphenol A (TBBPA) is a widely used brominated flame retardant found in a variety of household products. A recent 2-year National Toxicology Program carcinogenicity study found that exposure to TBBPA was associated with a marked increase in the development of uterine tumors, specifically uterine carcinomas, in Wistar Han rats. Molecularly, TBBPA-induced uterine carcinomas in Wistar Han rats were characterized by a marked increase in tumor protein 53 mutation compared to spontaneous uterine carcinomas, as well as overexpression of human epidermal growth factor receptor 2. Similar to spontaneous carcinomas, tumors in TBBPA-exposed rats were estrogen receptor-alpha positive and progesterone receptor negative by immunohistochemistry. The morphologic and molecular features of uterine carcinomas in TBBPA-exposed rats resemble those of high-grade type I tumors in women, and these data suggest that exposure to TBBPA may pose an increased cancer risk.
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Affiliation(s)
- Janice B Harvey
- Cellular and Molecular Pathology Branch, Division of the National Toxicology Program, National Institute of Environmental Health Sciences, Research Triangle Park, North Carolina, USA College of Veterinary Medicine, North Carolina State University, Raleigh, North Carolina, USA
| | - Tanasa S Osborne
- Cellular and Molecular Pathology Branch, Division of the National Toxicology Program, National Institute of Environmental Health Sciences, Research Triangle Park, North Carolina, USA
| | - Hue-Hua L Hong
- Cellular and Molecular Pathology Branch, Division of the National Toxicology Program, National Institute of Environmental Health Sciences, Research Triangle Park, North Carolina, USA
| | - Sachin Bhusari
- Cellular and Molecular Pathology Branch, Division of the National Toxicology Program, National Institute of Environmental Health Sciences, Research Triangle Park, North Carolina, USA
| | - Tai-Vu Ton
- Cellular and Molecular Pathology Branch, Division of the National Toxicology Program, National Institute of Environmental Health Sciences, Research Triangle Park, North Carolina, USA
| | - Arun R Pandiri
- Experimental Pathology Laboratories, Research Triangle Park, North Carolina, USA
| | - Tiwanda Masinde
- Cellular and Molecular Pathology Branch, Division of the National Toxicology Program, National Institute of Environmental Health Sciences, Research Triangle Park, North Carolina, USA
| | - June Dunnick
- Experimental Toxicology Branch, Division of the National Toxicology Program, National Institute of Environmental Health Sciences, Research Triangle Park, North Carolina, USA
| | - Shyamal Peddada
- Biostatistics Branch, Division of the National Toxicology Program, National Institute of Environmental Health Sciences, Research Triangle Park, North Carolina, USA
| | - Susan Elmore
- Cellular and Molecular Pathology Branch, Division of the National Toxicology Program, National Institute of Environmental Health Sciences, Research Triangle Park, North Carolina, USA
| | - Mark J Hoenerhoff
- Cellular and Molecular Pathology Branch, Division of the National Toxicology Program, National Institute of Environmental Health Sciences, Research Triangle Park, North Carolina, USA Current address: In Vivo Animal Core, Unit for Laboratory Animal Medicine, University of Michigan Medical School, Ann Arbor, Michigan, USA
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Harvey JB, Hong HHL, Bhusari S, Ton TV, Wang Y, Foley JF, Peddada SD, Hooth M, DeVito M, Nyska A, Pandiri AR, Hoenerhoff MJ. F344/NTac Rats Chronically Exposed to Bromodichloroacetic Acid Develop Mammary Adenocarcinomas With Mixed Luminal/Basal Phenotype and Tgfβ Dysregulation. Vet Pathol 2015; 53:170-81. [PMID: 25732176 DOI: 10.1177/0300985815571680] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Breast cancer is the most common cancer and the second-leading cause of cancer mortality in women in the United States. A recent 2-year National Toxicology Program carcinogenicity study showed an increased incidence of proliferative mammary lesions (hyperplasia, fibroadenoma, adenocarcinoma) in F344/NTac rats exposed to bromodichloroacetic acid (BDCA), a disinfection by-product in finished drinking water with widespread human exposure. We hypothesized that the increase in mammary tumors observed in BDCA-exposed F344/NTac rats may be due to underlying molecular changes relevant for human breast cancer. The objective of the study was to compare (1) gene and protein expression and (2) mutation spectra of relevant human breast cancer genes between normal untreated mammary gland and mammary tumors from control and BDCA-exposed animals to identify molecular changes relevant for human cancer. Histologically, adenocarcinomas from control and BDCA-exposed animals were morphologically very similar, were estrogen/progesterone receptor positive, and displayed a mixed luminal/basal phenotype. Gene expression analysis showed a positive trend in the number of genes associated with human breast cancer, with proportionally more genes represented in the BDCA-treated tumor group. Additionally, a 5-gene signature representing possible Tgfβ pathway activation in BDCA-treated adenocarcinomas was observed, suggesting that this pathway may be involved in the increased incidence of mammary tumors in BDCA-exposed animals.
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Affiliation(s)
- J B Harvey
- Investigative Pathology Group, Division of the National Toxicology Program, National Institute of Environmental Health Sciences, Research Triangle Park, NC, USA North Carolina State University College of Veterinary Medicine, Raleigh, NC, USA
| | - H-H L Hong
- Investigative Pathology Group, Division of the National Toxicology Program, National Institute of Environmental Health Sciences, Research Triangle Park, NC, USA
| | - S Bhusari
- Investigative Pathology Group, Division of the National Toxicology Program, National Institute of Environmental Health Sciences, Research Triangle Park, NC, USA
| | - T-V Ton
- Investigative Pathology Group, Division of the National Toxicology Program, National Institute of Environmental Health Sciences, Research Triangle Park, NC, USA
| | - Y Wang
- Investigative Pathology Group, Division of the National Toxicology Program, National Institute of Environmental Health Sciences, Research Triangle Park, NC, USA Special Techniques Group, Cellular and Molecular Pathology Branch, Division of the National Toxicology Program, National Institute of Environmental Health Sciences, Research Triangle Park, NC, USA
| | - J F Foley
- Investigative Pathology Group, Division of the National Toxicology Program, National Institute of Environmental Health Sciences, Research Triangle Park, NC, USA Special Techniques Group, Cellular and Molecular Pathology Branch, Division of the National Toxicology Program, National Institute of Environmental Health Sciences, Research Triangle Park, NC, USA
| | - S D Peddada
- Biostatistics Branch, Division of the National Toxicology Program, National Institute of Environmental Health Sciences, Research Triangle Park, NC, USA
| | - M Hooth
- Program Operations Branch, Division of the National Toxicology Program, National Institute of Environmental Health Sciences, Research Triangle Park, NC, USA
| | - M DeVito
- General Toxicology Group, Division of the National Toxicology Program, National Institute of Environmental Health Sciences, Research Triangle Park, NC, USA
| | - A Nyska
- Integrated Laboratory Systems, Inc., Research Triangle Park, NC, USA
| | - A R Pandiri
- Investigative Pathology Group, Division of the National Toxicology Program, National Institute of Environmental Health Sciences, Research Triangle Park, NC, USA Experimental Pathology Laboratories, Research Triangle Park, NC, USA
| | - M J Hoenerhoff
- Investigative Pathology Group, Division of the National Toxicology Program, National Institute of Environmental Health Sciences, Research Triangle Park, NC, USA
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Harvey JB. The spin doctors: an invitation to health care professionals to reflect on the organizational dynamics of the Last Supper and why Judas was not the traitor. Manag Care Q 1997; 5:76-82. [PMID: 10164654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
Abstract
The dynamics of The Last Supper are used to describe how organizations' members frequently make unethical, organizationally destructive decisions and then become "spin doctors" who collude in creating explanations that deflect attention from their contributions to the ensuing debacles. The implications of that process for a variety of organizations, including those engaged in health care, are discussed.
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Affiliation(s)
- J B Harvey
- George Washington University, Washington, DC, USA
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Harvey JB, Roberts JM, Schantz PM. Survey of veterinarians' recommendations for treatment and control of intestinal parasites in dogs: public health implications. J Am Vet Med Assoc 1991; 199:702-7. [PMID: 1955360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
A systematic, random sample of 450 small and mixed-animal practitioners was selected from the client list of a prominent veterinary pharmaceutical and animal health company. A telephone survey was conducted, using a standard questionnaire, to assess whether current veterinary practices concerning prophylaxis and treatment of canine roundworm (Toxocara canis) and hookworm (Ancylostoma spp) infections are adequate to prevent transmission to human beings. Analysis of results focused on 3 questions related to prevention: practitioner's frequency of client education regarding zoonotic potential of roundworms and hookworms, pup age at which veterinarian recommends first anthelmintic treatments, and proportion of veterinarians recommending prophylactic drug administration for pups and nursing bitches. Despite the proven association of household pet dogs and human toxocariasis, only a third (148/450) of veterinarian respondents routinely discussed the potential zoonotic hazards of canine roundworms with their clients. A total of 29% (130/450) of veterinarians surveyed either never discussed these potential hazards or discussed them only when asked by their clients. With regard to anthelmintic treatment practices, 31% (140/450) of veterinarians surveyed recommended that pups first be examined and treated for intestinal parasites within 4 weeks of age. Thirty-three percent (163/450) recommended first examination and deworming at 5 to 6 weeks of age, and 36% (163/450) suggested that it be done at or after 7 weeks of age. Less than half (208/450) of veterinarians administered anthelmintics prophylactically to at least some pups and dogs. Sixty-four percent (287/450) of respondents recommended routine testing and treatment of nursing bitches.(ABSTRACT TRUNCATED AT 250 WORDS)
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Affiliation(s)
- J B Harvey
- Parasitic Disease Branch, Centers for Disease Control, Atlanta, GA 30333
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Harvey JB. Veterinary practice in the Far North. Mod Vet Pract 1973; 54:24-30. [PMID: 4800899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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Cohen D, Harvey JB. Characteristics of a normal equine population of Delaware and Chester Counties, Pennsylvania, 1968-1969. Am J Vet Res 1972; 33:1285-95. [PMID: 5022407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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