Donald Tillitt, PhD (Former Employee)
Science and Products
Filter Total Items: 215
Toxicity of o,p′-DDE to medaka d-rR strain after a one-time embryonic exposure by in ovo nanoinjection: An early through juvenile life cycle assessment Toxicity of o,p′-DDE to medaka d-rR strain after a one-time embryonic exposure by in ovo nanoinjection: An early through juvenile life cycle assessment
The toxicity of o,p′-DDE (1,1-dichloro-2-(p-chlorophenyl)-2-(o-chlorophenyl) ethylene) was evaluated in embryos of medaka (Oryzias latipes) following a one time exposure via nanoinjection. Medaka eggs (early gastrula) were injected with 0.5 nl of triolein (vehicle control) or 0.5 nl of 4 graded doses (0.0005-0.5 ng/egg) of o,p′-DDE in triolein. Embryos were allowed to develop, and fry...
Authors
Sergio A. Villalobos, Diana M. Papoulias, Stephanie D. Pastva, Alan L. Blankenship, John C. Meadows, Donald E. Tillitt, John P. Giesy
Determination of PCBs in fish using enzyme-linked immunosorbent assay (ELISA) Determination of PCBs in fish using enzyme-linked immunosorbent assay (ELISA)
Polychlorinated biphenyls (PCBs) were determined in fish tissue using an enzyme-linked immunosorbent assay (ELISA). Standard curves for Aroclor 1248, 1254, and 1260 in catfish tissue were developed with ranges from 0.05 to 0.5 ppm and 0.5 to 5.0 ppm. Wild fish were initially analyzed using gas chromatography/electron-capture detection (GC/ECD) and those having residues within the...
Authors
J.A. Lasrado, C.R. Santerre, J.L. Zajicek, J.R. Stahl, D. E. Tillitt, D. Deardorff
Comparison of prehatch C-start responses in rainbow trout and lake trout embryos by means of a tactile stimulus test Comparison of prehatch C-start responses in rainbow trout and lake trout embryos by means of a tactile stimulus test
The C-start in teleost fishes, a type of startle response, mediates the ability to respond to abrupt, unexpected stimuli and is characterized by a short-latency, C-type fast start acceleration. In prehatch fish embryos, the C-start appears necessary for mechanical breakdown of the egg chorion and successful hatching by way of increased embryo movement and distribution of the hatching...
Authors
P.J. Wright, Douglas B. Noltie, D. E. Tillitt
Effects of chronic dietary exposure to environmentally relevant concentrations to 2,3,7,8-tetrachlorodibenzo-p-dioxin on survival, growth, reproduction and biochemical responses of female rainbow trout (Oncorhynchus mykiss) Effects of chronic dietary exposure to environmentally relevant concentrations to 2,3,7,8-tetrachlorodibenzo-p-dioxin on survival, growth, reproduction and biochemical responses of female rainbow trout (Oncorhynchus mykiss)
Adult female rainbow trout were exposed to dietary 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) at concentrations of 1.8, 18 and 90 ng TCDD/kg (ww) food for up to 300 day. At the end of the exposure fish were spawned and the reproductive outcomes were assessed. TCDD was accumulated into tissues and eggs in a dose-dependent manner with steady state being achieved after 50–100 day of...
Authors
John P. Giesy, Paul D. Jones, Kurunthachalam Kannan, John L. Newsted, Donald E. Tillitt, Lisa L. Williams
Ontogenetic improvement of visual function in the medaka Oryzias latipes based on an optomotor testing system for larval and adult fish Ontogenetic improvement of visual function in the medaka Oryzias latipes based on an optomotor testing system for larval and adult fish
We developed a system for evaluation of visual function in larval and adult fish. Both optomotor (swimming) and optokinetic (eye movement) responses were monitored and recorded using a system of rotating stripes. The system allowed manipulation of factors such as width of the stripes used, rotation speed of the striped drum, and light illuminance levels within both the scotopic and...
Authors
Paulo S. M. Carvalho, Douglas B. Noltie, D. E. Tillitt
2,3,7,8-Tetrachlorodibenzo-p-dioxin Toxicity in the Zebrafish Embryo: Local Circulation Failure in the Dorsal Midbrain Is Associated with Increased Apoptosis 2,3,7,8-Tetrachlorodibenzo-p-dioxin Toxicity in the Zebrafish Embryo: Local Circulation Failure in the Dorsal Midbrain Is Associated with Increased Apoptosis
No abstract available.
Authors
Donald E. Tillitt, Diana M. Papoulias
Science and Products
Filter Total Items: 215
Toxicity of o,p′-DDE to medaka d-rR strain after a one-time embryonic exposure by in ovo nanoinjection: An early through juvenile life cycle assessment Toxicity of o,p′-DDE to medaka d-rR strain after a one-time embryonic exposure by in ovo nanoinjection: An early through juvenile life cycle assessment
The toxicity of o,p′-DDE (1,1-dichloro-2-(p-chlorophenyl)-2-(o-chlorophenyl) ethylene) was evaluated in embryos of medaka (Oryzias latipes) following a one time exposure via nanoinjection. Medaka eggs (early gastrula) were injected with 0.5 nl of triolein (vehicle control) or 0.5 nl of 4 graded doses (0.0005-0.5 ng/egg) of o,p′-DDE in triolein. Embryos were allowed to develop, and fry...
Authors
Sergio A. Villalobos, Diana M. Papoulias, Stephanie D. Pastva, Alan L. Blankenship, John C. Meadows, Donald E. Tillitt, John P. Giesy
Determination of PCBs in fish using enzyme-linked immunosorbent assay (ELISA) Determination of PCBs in fish using enzyme-linked immunosorbent assay (ELISA)
Polychlorinated biphenyls (PCBs) were determined in fish tissue using an enzyme-linked immunosorbent assay (ELISA). Standard curves for Aroclor 1248, 1254, and 1260 in catfish tissue were developed with ranges from 0.05 to 0.5 ppm and 0.5 to 5.0 ppm. Wild fish were initially analyzed using gas chromatography/electron-capture detection (GC/ECD) and those having residues within the...
Authors
J.A. Lasrado, C.R. Santerre, J.L. Zajicek, J.R. Stahl, D. E. Tillitt, D. Deardorff
Comparison of prehatch C-start responses in rainbow trout and lake trout embryos by means of a tactile stimulus test Comparison of prehatch C-start responses in rainbow trout and lake trout embryos by means of a tactile stimulus test
The C-start in teleost fishes, a type of startle response, mediates the ability to respond to abrupt, unexpected stimuli and is characterized by a short-latency, C-type fast start acceleration. In prehatch fish embryos, the C-start appears necessary for mechanical breakdown of the egg chorion and successful hatching by way of increased embryo movement and distribution of the hatching...
Authors
P.J. Wright, Douglas B. Noltie, D. E. Tillitt
Effects of chronic dietary exposure to environmentally relevant concentrations to 2,3,7,8-tetrachlorodibenzo-p-dioxin on survival, growth, reproduction and biochemical responses of female rainbow trout (Oncorhynchus mykiss) Effects of chronic dietary exposure to environmentally relevant concentrations to 2,3,7,8-tetrachlorodibenzo-p-dioxin on survival, growth, reproduction and biochemical responses of female rainbow trout (Oncorhynchus mykiss)
Adult female rainbow trout were exposed to dietary 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) at concentrations of 1.8, 18 and 90 ng TCDD/kg (ww) food for up to 300 day. At the end of the exposure fish were spawned and the reproductive outcomes were assessed. TCDD was accumulated into tissues and eggs in a dose-dependent manner with steady state being achieved after 50–100 day of...
Authors
John P. Giesy, Paul D. Jones, Kurunthachalam Kannan, John L. Newsted, Donald E. Tillitt, Lisa L. Williams
Ontogenetic improvement of visual function in the medaka Oryzias latipes based on an optomotor testing system for larval and adult fish Ontogenetic improvement of visual function in the medaka Oryzias latipes based on an optomotor testing system for larval and adult fish
We developed a system for evaluation of visual function in larval and adult fish. Both optomotor (swimming) and optokinetic (eye movement) responses were monitored and recorded using a system of rotating stripes. The system allowed manipulation of factors such as width of the stripes used, rotation speed of the striped drum, and light illuminance levels within both the scotopic and...
Authors
Paulo S. M. Carvalho, Douglas B. Noltie, D. E. Tillitt
2,3,7,8-Tetrachlorodibenzo-p-dioxin Toxicity in the Zebrafish Embryo: Local Circulation Failure in the Dorsal Midbrain Is Associated with Increased Apoptosis 2,3,7,8-Tetrachlorodibenzo-p-dioxin Toxicity in the Zebrafish Embryo: Local Circulation Failure in the Dorsal Midbrain Is Associated with Increased Apoptosis
No abstract available.
Authors
Donald E. Tillitt, Diana M. Papoulias
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