Donald Tillitt, PhD (Former Employee)
Science and Products
Filter Total Items: 13
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Filter Total Items: 216
Evaluation of planar halogenated and polycyclic aromatic hydrocarbons in estuarine sediments using ethoxyresorufin-O-deethylase induction of H4IIE cells Evaluation of planar halogenated and polycyclic aromatic hydrocarbons in estuarine sediments using ethoxyresorufin-O-deethylase induction of H4IIE cells
Polycyclic aromatic hydrocarbons (PAHs) and planar halogenated hydrocarbons (PHHs), including polychlorinated dibenzo-p-dioxins (PCDDs), dibenzofurans (PCDFs), and biphenyls (PCBs) were determined in fractionated sediment extracts from the Hudson-Raritan estuary and Newark Bay, New Jersey, USA, as part of a comprehensive risk assessment. Contributions of PCDDs/PCDFs, PCBs, and PAHs to...
Authors
R.W. Gale, E.R. Long, T.R. Schwartz, D. E. Tillitt
Comparing polychlorinated biphenyl concentrations and patterns in the Saginaw River using sediment, caged fish, and semipermeable membrane devices Comparing polychlorinated biphenyl concentrations and patterns in the Saginaw River using sediment, caged fish, and semipermeable membrane devices
Three techniques of assessing bioavailable polychlorinated biphenyls (PCBs) in the Saginaw River, MI, were compared: sediments, caged fish, and semipermeable membrane devices (SPMDs). SPMDs and caged fish were placed in the river for 28 days at five sites where sediments were also sampled. The samples were analyzed for PCB congeners to determine concentrations and patterns. Total PCB
Authors
K. R. Echols, R.W. Gale, T.R. Schwartz, J.N. Huckins, L.L. Williams, J.C. Meadows, D. Morse, J. D. Petty, C.E. Orazio, D. E. Tillitt
Polychlorinated biphenyls and 2,3,7,8-tetrachlorodibenzo-p-dioxin equivalents in tree swallows from the upper Hudson River, New York State, USA Polychlorinated biphenyls and 2,3,7,8-tetrachlorodibenzo-p-dioxin equivalents in tree swallows from the upper Hudson River, New York State, USA
The upper Hudson River of New York State, USA, is contaminated with polychlorinated biphenyls (PCBs) as a result of industrial discharges throughout the latter half of this century. In 1994 and 1995, we monitored the transfer of PCBs from aquatic sediments to a terrestrial wildlife community using the tree swallow (Tachycineta bicolor) as a model organism. Tree swallow eggs and nestlings...
Authors
Anne L. Secord, John P. McCarty, Kathy R. Echols, John C. Meadows, Robert W. Gale, Donald E. Tillitt
Embryotoxicity of Great Lakes lake trout extracts to developing rainbow trout Embryotoxicity of Great Lakes lake trout extracts to developing rainbow trout
Planar halogenated hydrocarbons (PHHs), such as polychlorinated dibenzo-p-dioxins, dibenzofurans, and biphenyls are present in aquatic systems, and are known to produce adverse effects in fish. This study investigated the embryotoxicity of PHH mixtures through the nanoinjection of environmental extracts into newly fertilized eggs from two strains of rainbow trout. Organic extracts were...
Authors
Peggy J. Wright, Donald E. Tillitt
Workshop introduction Workshop introduction
No abstract available.
Authors
Ellen Mihaich, Jay W. Gooch, P.L deFur, W.H. Benson, C. Tyler, L. Birnbaum, R.T. Di Giulio, D. E. Tillitt
Workshop summary, conclusions and recommendations Workshop summary, conclusions and recommendations
No abstract available.
Authors
W.H. Benson, R.T. Di Giulio, D. E. Tillitt, L. Birnbaum, P.L deFur, Jay W. Gooch, Ellen Mihaich, C. Tyler
Review of a natural thiamine deficiency causing reproductive failure in feral salmonid species of the Great Lakes Review of a natural thiamine deficiency causing reproductive failure in feral salmonid species of the Great Lakes
No abstract available at this time
Authors
D. C. Honeyfield, D. E. Tillitt, S.B. Brown, J.D. Fitzsimons
Biomonitoring of Environmental Status and Trends (BEST) Program: Field Procedures for Assessing the Exposure of Fish to Environmental Contaminants Biomonitoring of Environmental Status and Trends (BEST) Program: Field Procedures for Assessing the Exposure of Fish to Environmental Contaminants
This document describes procedures used to collect information, tissues, and fluids for documenting the exposure of fish to environmental contaminants. For the procedures described here, fish are captured (preferably by electrofishing) and held alive until processing (generally
Authors
Christopher J. Schmitt, Vicki Blazer, Gail M. Dethloff, Donald E. Tillitt, Timothy S. Gross, Wade L. Bryant, L. Rod DeWeese, Stephen B. Smith, Ronald W. Goede, Timothy M. Bartish, Timothy J. Kubiak
The toxic equivalents approach for fish and wildlife The toxic equivalents approach for fish and wildlife
No abstract available.
Authors
Donald E. Tillitt
Cytochrome P4501A induction, benzo[a]pyrene metabolism, and nucleotide adduct formation in fish hepatoma cells: Effect of preexposure to 3,3',4,4',5-pentachlorobiphenyl Cytochrome P4501A induction, benzo[a]pyrene metabolism, and nucleotide adduct formation in fish hepatoma cells: Effect of preexposure to 3,3',4,4',5-pentachlorobiphenyl
In PLHC-1 hepatoma cells, benzo[a]pyrene (B[a]P) caused a maximum induction of cytochrome P4501A (CYP1A) activity, measured as ethoxyresorufin O-deethylation (EROD), after 4 to 8 h of exposure, depending on the B[a]P concentration. The decline of EROD activity at longer exposure times was probably caused by the rapid metabolism of B[a]P in this system (57% metabolism within 4 h...
Authors
J.M.W. Smeets, A. Voormolen, D. E. Tillitt, J.M. Everaarts, W. Seinen, Vanden Berg
Factors associated with temporal variation in EMS: Research task report on early mortality syndrome workshop Factors associated with temporal variation in EMS: Research task report on early mortality syndrome workshop
No abstract available at this time
Authors
J. Fitzsimons, S.B. Brown, D. C. Honeyfield, D. E. Tillitt, J. Zajicek, J.G. Hnath
Overview of a workshop on screening methods for detecting potential (anti-) estrogenic/androgenic chemicals in wildlife Overview of a workshop on screening methods for detecting potential (anti-) estrogenic/androgenic chemicals in wildlife
The U.S. Congress has passed legislation requiring the U.S. Environmental Protection Agency (U.S. EPA) to develop, validate, and implement screening tests for identifying potential endocrine-disrupting chemicals within 3 years. To aid in the identification of methods suitable for this purpose, the U.S. EPA, the Chemical Manufacturers Association, and the World Wildlife Fund sponsored...
Authors
Gerald T. Ankley, Ellen Mihaich, Ralph G. Stahl, Donald E. Tillitt, Theo Colborn, Suzzanne McMaster, Ron Miller, John Bantle, Pamela Campbell, Nancy Denslow, Richard L. Dickerson, Leroy C. Folmar, Michael Fry, John P. Giesy, L. Earl Gray, Patrick Guiney, Thomas Hutchinson, Sean W. Kennedy, Vincent Kramer, Gerald A. LeBlanc, Monte Mayes, Alison Nimrod, Reynaldo Patino, Richard Peterson, Richard Purdy, Robert Ringer, Peter C. Thomas, Les Touart, Glen Van Der Kraak, Tim Zacharewski
Science and Products
Filter Total Items: 13
No Result Found
Filter Total Items: 216
Evaluation of planar halogenated and polycyclic aromatic hydrocarbons in estuarine sediments using ethoxyresorufin-O-deethylase induction of H4IIE cells Evaluation of planar halogenated and polycyclic aromatic hydrocarbons in estuarine sediments using ethoxyresorufin-O-deethylase induction of H4IIE cells
Polycyclic aromatic hydrocarbons (PAHs) and planar halogenated hydrocarbons (PHHs), including polychlorinated dibenzo-p-dioxins (PCDDs), dibenzofurans (PCDFs), and biphenyls (PCBs) were determined in fractionated sediment extracts from the Hudson-Raritan estuary and Newark Bay, New Jersey, USA, as part of a comprehensive risk assessment. Contributions of PCDDs/PCDFs, PCBs, and PAHs to...
Authors
R.W. Gale, E.R. Long, T.R. Schwartz, D. E. Tillitt
Comparing polychlorinated biphenyl concentrations and patterns in the Saginaw River using sediment, caged fish, and semipermeable membrane devices Comparing polychlorinated biphenyl concentrations and patterns in the Saginaw River using sediment, caged fish, and semipermeable membrane devices
Three techniques of assessing bioavailable polychlorinated biphenyls (PCBs) in the Saginaw River, MI, were compared: sediments, caged fish, and semipermeable membrane devices (SPMDs). SPMDs and caged fish were placed in the river for 28 days at five sites where sediments were also sampled. The samples were analyzed for PCB congeners to determine concentrations and patterns. Total PCB
Authors
K. R. Echols, R.W. Gale, T.R. Schwartz, J.N. Huckins, L.L. Williams, J.C. Meadows, D. Morse, J. D. Petty, C.E. Orazio, D. E. Tillitt
Polychlorinated biphenyls and 2,3,7,8-tetrachlorodibenzo-p-dioxin equivalents in tree swallows from the upper Hudson River, New York State, USA Polychlorinated biphenyls and 2,3,7,8-tetrachlorodibenzo-p-dioxin equivalents in tree swallows from the upper Hudson River, New York State, USA
The upper Hudson River of New York State, USA, is contaminated with polychlorinated biphenyls (PCBs) as a result of industrial discharges throughout the latter half of this century. In 1994 and 1995, we monitored the transfer of PCBs from aquatic sediments to a terrestrial wildlife community using the tree swallow (Tachycineta bicolor) as a model organism. Tree swallow eggs and nestlings...
Authors
Anne L. Secord, John P. McCarty, Kathy R. Echols, John C. Meadows, Robert W. Gale, Donald E. Tillitt
Embryotoxicity of Great Lakes lake trout extracts to developing rainbow trout Embryotoxicity of Great Lakes lake trout extracts to developing rainbow trout
Planar halogenated hydrocarbons (PHHs), such as polychlorinated dibenzo-p-dioxins, dibenzofurans, and biphenyls are present in aquatic systems, and are known to produce adverse effects in fish. This study investigated the embryotoxicity of PHH mixtures through the nanoinjection of environmental extracts into newly fertilized eggs from two strains of rainbow trout. Organic extracts were...
Authors
Peggy J. Wright, Donald E. Tillitt
Workshop introduction Workshop introduction
No abstract available.
Authors
Ellen Mihaich, Jay W. Gooch, P.L deFur, W.H. Benson, C. Tyler, L. Birnbaum, R.T. Di Giulio, D. E. Tillitt
Workshop summary, conclusions and recommendations Workshop summary, conclusions and recommendations
No abstract available.
Authors
W.H. Benson, R.T. Di Giulio, D. E. Tillitt, L. Birnbaum, P.L deFur, Jay W. Gooch, Ellen Mihaich, C. Tyler
Review of a natural thiamine deficiency causing reproductive failure in feral salmonid species of the Great Lakes Review of a natural thiamine deficiency causing reproductive failure in feral salmonid species of the Great Lakes
No abstract available at this time
Authors
D. C. Honeyfield, D. E. Tillitt, S.B. Brown, J.D. Fitzsimons
Biomonitoring of Environmental Status and Trends (BEST) Program: Field Procedures for Assessing the Exposure of Fish to Environmental Contaminants Biomonitoring of Environmental Status and Trends (BEST) Program: Field Procedures for Assessing the Exposure of Fish to Environmental Contaminants
This document describes procedures used to collect information, tissues, and fluids for documenting the exposure of fish to environmental contaminants. For the procedures described here, fish are captured (preferably by electrofishing) and held alive until processing (generally
Authors
Christopher J. Schmitt, Vicki Blazer, Gail M. Dethloff, Donald E. Tillitt, Timothy S. Gross, Wade L. Bryant, L. Rod DeWeese, Stephen B. Smith, Ronald W. Goede, Timothy M. Bartish, Timothy J. Kubiak
The toxic equivalents approach for fish and wildlife The toxic equivalents approach for fish and wildlife
No abstract available.
Authors
Donald E. Tillitt
Cytochrome P4501A induction, benzo[a]pyrene metabolism, and nucleotide adduct formation in fish hepatoma cells: Effect of preexposure to 3,3',4,4',5-pentachlorobiphenyl Cytochrome P4501A induction, benzo[a]pyrene metabolism, and nucleotide adduct formation in fish hepatoma cells: Effect of preexposure to 3,3',4,4',5-pentachlorobiphenyl
In PLHC-1 hepatoma cells, benzo[a]pyrene (B[a]P) caused a maximum induction of cytochrome P4501A (CYP1A) activity, measured as ethoxyresorufin O-deethylation (EROD), after 4 to 8 h of exposure, depending on the B[a]P concentration. The decline of EROD activity at longer exposure times was probably caused by the rapid metabolism of B[a]P in this system (57% metabolism within 4 h...
Authors
J.M.W. Smeets, A. Voormolen, D. E. Tillitt, J.M. Everaarts, W. Seinen, Vanden Berg
Factors associated with temporal variation in EMS: Research task report on early mortality syndrome workshop Factors associated with temporal variation in EMS: Research task report on early mortality syndrome workshop
No abstract available at this time
Authors
J. Fitzsimons, S.B. Brown, D. C. Honeyfield, D. E. Tillitt, J. Zajicek, J.G. Hnath
Overview of a workshop on screening methods for detecting potential (anti-) estrogenic/androgenic chemicals in wildlife Overview of a workshop on screening methods for detecting potential (anti-) estrogenic/androgenic chemicals in wildlife
The U.S. Congress has passed legislation requiring the U.S. Environmental Protection Agency (U.S. EPA) to develop, validate, and implement screening tests for identifying potential endocrine-disrupting chemicals within 3 years. To aid in the identification of methods suitable for this purpose, the U.S. EPA, the Chemical Manufacturers Association, and the World Wildlife Fund sponsored...
Authors
Gerald T. Ankley, Ellen Mihaich, Ralph G. Stahl, Donald E. Tillitt, Theo Colborn, Suzzanne McMaster, Ron Miller, John Bantle, Pamela Campbell, Nancy Denslow, Richard L. Dickerson, Leroy C. Folmar, Michael Fry, John P. Giesy, L. Earl Gray, Patrick Guiney, Thomas Hutchinson, Sean W. Kennedy, Vincent Kramer, Gerald A. LeBlanc, Monte Mayes, Alison Nimrod, Reynaldo Patino, Richard Peterson, Richard Purdy, Robert Ringer, Peter C. Thomas, Les Touart, Glen Van Der Kraak, Tim Zacharewski
*Disclaimer: Listing outside positions with professional scientific organizations on this Staff Profile are for informational purposes only and do not constitute an endorsement of those professional scientific organizations or their activities by the USGS, Department of the Interior, or U.S. Government