Search Results - "Guillette, L.J."

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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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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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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The functional and structural observations of the neonatal reproductive system of alligators exposed in ovo to atrazine, 2,4-D, or estradiol by Crain, D A, Spiteri, I D, Guillette, Jr, L J

“…Wild alligators exposed to persistent organochlorine contaminants, municipal waste compounds, and contemporary-use herbicides exhibit reproductive alterations…”
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Environmental context determines nitrate toxicity in Southern toad ( Bufo terrestris) tadpoles by Edwards, Thea M., McCoy, Krista A., Barbeau, Tamatha, McCoy, Michael W., Thro, John Matthew, Guillette, Louis J.

“…Aquatic nitrate contamination has escalated over the past 50 years, primarily due to intensified fertilizer application and sewage production worldwide…”
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Altered development and reproduction in mosquitofish exposed to pulp and paper mill effluent in the Fenholloway River, Florida USA by Orlando, Edward F., Bass, Danielle E., Caltabiano, Lisa M., Davis, William P., Gray, L. Earl, Guillette, Louis J.

“…Female mosquitofish exposed to pulp and paper mill effluent (PME) in the Fenholloway River, Florida, USA have masculinized secondary sex characteristics and…”
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Altered social behavior and sexual characteristics in mosquitofish ( Gambusia holbrooki) living downstream of a paper mill by Toft, Gunnar, Baatrup, Erik, Guillette, Louis J.

“…Several environmental contaminants have been found in paper mill effluent including substances with androgenic properties. The presence of androgenic…”
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Decreased sperm count and sexual behavior in mosquitofish exposed to water from a pesticide-contaminated lake by Toft, Gunnar, Guillette, Louis J.

“…A number of reproductive abnormalities have been observed in wildlife living in Lake Apopka, Florida, USA. To test whether these abnormalities can be…”
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Contaminantminduced endocrinedisruption in wildlife by Guillette, L.J.

“…Environmental contaminants have posed a threat to the health of wildlife since the onset of the industrial age. Over the last four decades, much concern has…”
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Interaction of environmental chemicals with the estrogen and progesterone receptors from the oviduct of the American alligator by Vonier, P.M. (Tulane-Xavier Center for Bioenvironmental Research, New Orleans, LA.), Crain, D.A, McLachlan, J.A, Guillette, L.J. Jr, Arnold, S.F

“…Reports of reproductive abnormalities in the American alligator from Lake Apopka, Florida, have been linked to a spill of DDT and other pesticides suspected of…”
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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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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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Sex-steroid and thyroid hormone concentrations in juvenile alligators (Alligator mississippiensis) from contaminated and reference lakes in Florida, USA by Crain, D.A. (University of Florida, Gainesville.), Guillette, L.J. Jr, Pickford, D.B, Percival, H.F, Woodward, A.R

“…Sex-steroid and thyroid hormones are critical regulators of growth and reproduction in all vertebrates, and several recent studies suggest that environmental…”
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Effect of acute stress on plasma β-corticosterone, estradiol-17β and testosterone concentrations in juvenile American alligators collected from three sites within the Kissimmee–Everglades drainage basin in Florida (USA) by Gunderson, M.P., Kools, S.A.E., Milnes, M.R., Guillette, L.J.

“…The effect of acute stress on plasma β-corticosterone (B), testosterone (T) and estradiol-17β (E 2) concentrations in juvenile alligators collected from sites…”
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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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Ultrastructure of the uterus in an ovariectomized gecko (Hemidactylus turcicus) after administration of exogenous estradiol by Girling, J.E., Guillette Jr, L.J, Cree, A.

“…The uterus of an oviparous gecko, Hemidactylus turcicus, was analysed after ovariectomized females underwent a period of treatment (up to 14 days) with…”
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Ecoestrogens and embryos—Is there a scientific basis for concern? by Guillette, Louis J., Arnold, Steven F., McLachlan, John A.

“…A variety of estrogenic compounds exist in the environment, both natural (phyto- and fungal estrogens) and synthetic (e.g. pesticides, industrial…”
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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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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, L.J. Jr

“…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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