Search Results - "GUILLETTE, L. J"

Masculinization of Female Mosquitofish in Kraft Mill Effluent-Contaminated Fenholloway River Water Is Associated with Androgen Receptor Agonist Activity by Parks, L. G., Lambright, C. S., Orlando, E. F., Guillette, L. J., Ankley, G. T., Gray, L. E.

“…Female mosquitofish (Gambusia affinis holbrooki) downstream from Kraft paper mills in Florida display masculinization of the anal fin, an androgen-dependent…”
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Alterations in development of reproductive and endocrine systems of wildlife populations exposed to endocrine-disrupting contaminants by Guillette LJ, Gunderson, MP

“…Wildlife and human populations are affected by contaminants in natural settings. This problem has been a growing concern over the last decade with the…”
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Serum concentrations of various environmental contaminants and their relationship to sex steroid concentrations and phallus size in juvenile American alligators by Guillette, L.J. Jr, Brock, J.W, Rooney, A.A, Woodward, A.R

“…Recent studies have reported a number of abnormalities in the hatchling and juvenile alligators of Lake Apopka, FL (USA). These abnormalities include…”
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Synergistic Activation of Estrogen Receptor with Combinations of Environmental Chemicals by Arnold, Steven F., Klotz, Diane M., Collins, Bridgette M., Vonier, Peter M., Guillette, Louis J., McLachlan, John A.

“…Certain chemicals in the environment are estrogenic. The low potencies of these compounds, when studied singly, suggest that they may have little effect on…”
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Developmental Abnormalities of the Gonad and Abnormal Sex Hormone Concentrations in Juvenile Alligators from Contaminated and Control Lakes in Florida by Guillette, Louis J., Gross, Timothy S., Masson, Greg R., Matter, John M., Percival, H. Franklin, Woodward, Allan R.

“…The reproductive development of alligators from a contaminated and a control lake in central Florida was examined. Lake Apopka is adjacent to an EPA Superfund…”
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Vitellogenin Induction and Reduced Serum Testosterone Concentrations in Feral Male Carp (Cyprinus carpio) Captured near a Major Metropolitan Sewage Treatment Plant by Folmar, Leroy C., Denslow, Nancy D., Rao, Vijayasri, Chow, Marjorie, Crain, D. Andrew, Enblom, Jack, Marcino, Joseph, Guillette, Louis J.

“…Endocrine disrupting chemicals can potentially alter the reproductive physiology of fishes. To test this hypothesis, serum was collected from common carp…”
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Altered serum sex steroids and vitellogenin induction in walleye (Stizostedion vitreum) collected near a metropolitan sewage treatment plant by FOLMAR, L. C, DENSLOW, N. D, KROLL, K, ORLANDO, E. F, ENBLOM, J, MARCINO, J, METCALFE, C, GUILLETTE, L. J

“…Several recent in situ studies have reported that domestic and mixed domestic/industrial sewage effluents contain one or more natural or anthropogenic…”
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Organization versus Activation: The Role of Endocrine-Disrupting Contaminants (EDCs) during Embryonic Development in Wildlife by Guillette, Louis J., Crain, D. Andrew, Rooney, Andrew A., Pickford, Daniel B.

“…Many environmental contaminants disrupt the vertebrate endocrine system. Although they may be no more sensitive to endocrine-disrupting contaminants (EDCs)…”
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Alterations in Steroidogenesis in Alligators (Alligator mississippiensis) Exposed Naturally and Experimentally to Environmental Contaminants by Crain, D. Andrew, Guillette, Louis J., Rooney, Andrew A., Pickford, Daniel B.

“…Many environmental contaminants alter the reproduction of animals by altering the development and function of the endocrine system. The ability of…”
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Racial disparity in maternal and fetal-cord bisphenol A concentrations by Unal, E R, Lynn, T, Neidich, J, Salazar, D, Goetzl, L, Baatz, J E, Hulsey, T C, Van Dolah, R, Guillette, L J, Newman, R

“…Objective: To determine if racial disparities exist in maternal and fetal cord serum concentrations of bisphenol A (BPA). Study Design: A nested…”
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Potential contributions of heat shock proteins to temperature-dependent sex determination in the American alligator by Kohno, S, Katsu, Y, Urushitani, H, Ohta, Y, Iguchi, T, Guillette, Jr, L J

“…Sex determination in the American alligator depends on the incubation temperature experienced during a thermo-sensitive period (TSP), although sex…”
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From reptilian phylogenomics to reptilian genomes: analyses of c-Jun and DJ-1 proto-oncogenes by Katsu, Y, Braun, E L, Guillette, Jr, L J, Iguchi, T

“…Genome projects have revolutionized our understanding of both molecular biology and evolution, but there has been a limited collection of genomic data from…”
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Up-regulation of the alligator CYP3A77 gene by toxaphene and dexamethasone and its short term effect on plasma testosterone concentrations by Gunderson, M.P., Kohno, S., Blumberg, B., Iguchi, T., Guillette, L.J.

“…In this study we describe an alligator hepatic CYP3A gene, CYP3A77, which is inducible by dexamethasone and toxaphene. CYP3A plays a broad role in…”
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Reptiles as models of contaminant-induced endocrine disruption by Crain, D.A., Guillette, L.J.

“…Historically, reptiles have been used as bioindicators of environmental contaminants and, currently, reptiles have the potential to elucidate the mechanisms of…”
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Phase I and II liver enzyme activities in juvenile alligators ( Alligator mississippiensis) collected from three sites in the Kissimmee–Everglades drainage, Florida (USA) by Gunderson, M.P., Oberdörster, E., Guillette, L.J.

“…We examined CYP1A (measured using hepatic EROD and MROD activities) and glutathione-S-transferase (GST) activities in juvenile alligators ( Alligator…”
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Metals and Metalloids in Tissues of American Alligators in Three Florida Lakes by Burger, J., Gochfeld, M., Rooney, A. A., Orlando, E. F., Woodward, A. R., Guillette, Jr, L. J.

“…Concentrations of metals and selenium were examined in tissues of American alligators (Alligator mississippiensis) from three lakes in central Florida, in one…”
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Fecundity, 17β-estradiol concentrations and expression of vitellogenin and estrogen receptor genes throughout the ovarian cycle in female Eastern mosquitofish from three lakes in Florida by Kristensen, T., Edwards, T.M., Kohno, S., Baatrup, E., Guillette, L.J.

“…Previous studies of Eastern mosquitofish in contaminated Lake Apopka, Florida, have documented reduced sperm count and sexual behaviour in males but increased…”
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Metal levels in tissues of florida gar (Lepisosteus platyrhincus) from lake okeechobee by BURGER, Joanna, ORLANDO, E. F, GOCHFELD, Michael, BINCZIK, G. A, GUILLETTE, L. J

“…There is considerable concern about the effects of contaminants on organisms at higher trophic levels, as well as interest in developing bioindicators of…”
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Gonadal Steroidogenesis in Vitro from Juvenile Alligators Obtained from Contaminated or Control Lakes by Guillette, Louis J., Gross, Timothy S., Gross, Denise A., Rooney, Andrew A., Percival, H. Franklin

“…The ubiquitous distribution of many contaminants and the nonlethal, multigenerational effects of such contaminants on reproductive, endocrine, and immune…”
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Contaminant-induced endocrine and reproductive alterations in reptiles by Guillette, L. J., Iguchi, Taisen

“…Many chemicals introduced into the environment by humans adversely affect embryonic development and the functioning of the vertebrate reproductive system. It…”
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