Effects Of The Developmental Environment On Oxidative Damage And Antioxidants In Red Eared Slider Turtle Trachemys Scripta Elegans Hatchlings

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Effects of the Developmental Environment on Oxidative Damage and Antioxidants in Red-eared Slider Turtle (Trachemys Scripta Elegans) Hatchlings

Author : Lisa A. Treidel
Publisher :
ISBN 13 : 9781339097268
Total Pages : 119 pages
Book Rating : 4.0/5 (972 download)

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Book Synopsis Effects of the Developmental Environment on Oxidative Damage and Antioxidants in Red-eared Slider Turtle (Trachemys Scripta Elegans) Hatchlings by : Lisa A. Treidel

Download or read book Effects of the Developmental Environment on Oxidative Damage and Antioxidants in Red-eared Slider Turtle (Trachemys Scripta Elegans) Hatchlings written by Lisa A. Treidel and published by . This book was released on 2015 with total page 119 pages. Available in PDF, EPUB and Kindle. Book excerpt: Developmental environments influence many individual phenotypes. However, currently we have a limited understanding of how the developmental environment influences oxidative stress resistance phenotypes. Oxidative stress is defined as a physiological state during which the production of harmful free radicals exceeds the protective capabilities of antioxidants. Variations among adults in susceptibility to oxidative stress can have important consequences for life history strategies and fitness related traits. Our work was aimed at providing insight in to the role that the developmental environment plays on oxidative stress phenotypes in the model oviparous reptile the red-eared slider turtle (Trachemys scripta elegans). Here, we conducted three independent experiments to determine if hatchling levels of oxidative damage and antioxidant activities vary following manipulations of the incubation thermal environment. First, to investigate if temperature fluctuations elicit oxidative stress during incubation, eggs from clutches were randomly assigned to a constant temperature (29.5℗ʻC) or daily sinusoidal fluctuating temperature incubation (28.7+3℗ʻC) treatment. Second, to assess the effect of temperature fluctuation frequency on oxidative stress, eggs were incubated in one of three fluctuating incubation regimes; 28.7+3℗ʻC sinusoidal fluctuations every 12 (Hyper), 24 (Normal), or 48 hours (Hypo). Third, we tested the influence of average incubation temperature on hatchling oxidative damage and total antioxidant capacity (TAC). To test this, eggs were incubated in daily sinusoidally fluctuating incubation temperature regime with a mean temperature of 26.5 ℗ʻ C (Low), 27.1 ℗ʻC (Medium), or 27.7 ℗ʻC (High). We report that regardless of any thermal manipulation, no treatment effects on hatchling accumulation of oxidative damage were observed. This finding suggests that T. scripta hatchlings have sufficient antioxidant defenses that effectively protect individuals from temperature induced oxidative stress during incubation. However, hatchling TAC was influenced by both temperature fluctuation frequency and average incubation temperature. Following incubation with a low frequency of temperature fluctuations individuals had a reduced TAC, while incubation at a lower average temperature was associated with enhanced TAC. These results indicate that hatchling TAC is likely sensitive to the developmental thermal environment and may have important future consequences for hatchling fitness. In addition to temperature, we also saw that both oxidative damage and TAC were significantly related to clutch identity suggesting that there are either strong maternal or genetic factors influencing early life oxidative status of T. scripta.

Effects of Hydric Conditions Experienced by Incubating Red-eared Slider Turtle Eggs, Trachemys Scripta Elegans, on Overwintering Hatchlings and Their Survivorship Upon Emerging from the Nest

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Author : Nirvana Iolani Filoramo
Publisher :
ISBN 13 :
Total Pages : 164 pages
Book Rating : 4.:/5 (379 download)

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Book Synopsis Effects of Hydric Conditions Experienced by Incubating Red-eared Slider Turtle Eggs, Trachemys Scripta Elegans, on Overwintering Hatchlings and Their Survivorship Upon Emerging from the Nest by : Nirvana Iolani Filoramo

Download or read book Effects of Hydric Conditions Experienced by Incubating Red-eared Slider Turtle Eggs, Trachemys Scripta Elegans, on Overwintering Hatchlings and Their Survivorship Upon Emerging from the Nest written by Nirvana Iolani Filoramo and published by . This book was released on 1997 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt: This behavior appears to lessen the impact of predation by birds. Predation has been indicated as a mechanism for driving the selection for larger body size. Therefore, reduction in mortality due to avian predators may have been the cause for not finding any effect of body size on survivorship, as had been found in past studies.

Oxidative Stress in Vertebrates and Invertebrates

Author : Tahira Farooqui
Publisher : John Wiley & Sons
ISBN 13 : 1118148118
Total Pages : 433 pages
Book Rating : 4.1/5 (181 download)

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Book Synopsis Oxidative Stress in Vertebrates and Invertebrates by : Tahira Farooqui

Download or read book Oxidative Stress in Vertebrates and Invertebrates written by Tahira Farooqui and published by John Wiley & Sons. This book was released on 2011-10-24 with total page 433 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume presents a unique comparative treatment of the role oxidative stress plays in vertebrates and invertebrates in multiple organ systems with regards to cell death, development, aging, and human diseases, and anti-oxidant therapy. It offers comprehensive reviews of the current understanding of oxidative stress-mediated physiology and pathology as well as directions for future research. It also provides current information on the role of oxidative stress in neurodegenerative diseases, cardiovascular diseases, and various types of cancer mediated by oxidative stress.

Investigations on the Red-eared Slider Turtle

Author :
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (412 download)

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Book Synopsis Investigations on the Red-eared Slider Turtle by :

Download or read book Investigations on the Red-eared Slider Turtle written by and published by . This book was released on 1999 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This publication contains reprints of articles on the red-eared slider turtle Trachemys scripta elegans that originally appeared in the American Society of Ichthyologists and Herpetologists 1998(2):488-492, Bulletin of the Maryland Herpetological Society 33:171-177, Canadian Journal of Zoology 76:377-380, and Journal of Herpetology 32(3):431-434, 32:124-128, and 32(2)294-298.

Oxidative Stress, Antioxidants, Transcription Factors, and Assimilation of Signal Transduction Pathways in Obesity-Related Disorders

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Author : Terry D. Hinds, Jr
Publisher : Frontiers Media SA
ISBN 13 : 2889715272
Total Pages : 206 pages
Book Rating : 4.8/5 (897 download)

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Book Synopsis Oxidative Stress, Antioxidants, Transcription Factors, and Assimilation of Signal Transduction Pathways in Obesity-Related Disorders by : Terry D. Hinds, Jr

Download or read book Oxidative Stress, Antioxidants, Transcription Factors, and Assimilation of Signal Transduction Pathways in Obesity-Related Disorders written by Terry D. Hinds, Jr and published by Frontiers Media SA. This book was released on 2021-10-21 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt: Topic Editors Terry Hinds and David Stec have submitted patents related to bilirubin and obesity related disorders. The other Topic Editor declare no potential conflicts of interest with regards to the Research Topic subject.

Oxidative Stress and Antioxidant Defenses in Biology

Author : Sami Ahmad
Publisher : Springer
ISBN 13 : 9781461596912
Total Pages : 448 pages
Book Rating : 4.5/5 (969 download)

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Book Synopsis Oxidative Stress and Antioxidant Defenses in Biology by : Sami Ahmad

Download or read book Oxidative Stress and Antioxidant Defenses in Biology written by Sami Ahmad and published by Springer. This book was released on 2012-02-05 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: This pioneering volume provides the first comprehensive treatment of the latest research on oxidative stress and antioxidant defenses in all types of aerobic organisms. Unlike existing books which concentrate on oxidative stress in humans and other mammals, this unique book investigates oxidative stress in prokaryotes, protists, plants, fungi, vertebrates, and invertebrates, stimulating cross-fertilization among diverse fields. In addition, it explains the basic science of oxygen activation and oxidative stress as a foundation for more advanced material, making this book a valuable resource for both specialists and non-specialists. Topics discussed include: * conversion of oxygen into reactive oxygen species (ROS), as well as reactions involving carbon-centered free radicals, antioxidant molecules, and the oxoferryl complex * ROS-mediated pathologies, from microvascular injury to atherosclerosis to cancer * mechanisms and benefits of ROS production in plants, with attention to conditions of nitrogen fixation * effects of manmade prooxidants found in drugs,pesticides, and environmental pollutants such as mercury and dioxins * metabolic resistance to naturally occurring prooxidants, antioxidant enzymes and proteins, and antioxidant molecules found in natural substances, with kinetics and rate constants for various interactions between ROS and antioxidants * complex genetic responses to ROS-mediated stress, using research on E. coli and S. typhimurium. Integrating a wide range of research, this outstanding book gives a broad and in-depth perspective on current progress in our understanding of oxidative stress. Biochemists and biologists in medicine, toxicology, ecology, entomology, plant science, microbiology, and mycology will benefit from this accessible and insightful treatment of the subject.

Thermal and Hormonal Effects on Gene Expression and Development in the Red-Eared Slider Turtle

Author : Rosario Marroquin-Flores
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.4/5 (387 download)

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Book Synopsis Thermal and Hormonal Effects on Gene Expression and Development in the Red-Eared Slider Turtle by : Rosario Marroquin-Flores

Download or read book Thermal and Hormonal Effects on Gene Expression and Development in the Red-Eared Slider Turtle written by Rosario Marroquin-Flores and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sex determination refers to the process by which cues from genes (genotypic sex determination) or environmental conditions (environmental sex determination) trigger bipotential gonads to develop into either ovaries or testes. Temperature-dependent sex determination (TSD) is a well-studied form of environmental sex determination in reptiles. The red-eared slider turtle (Trachemys scripta elegans) exhibits a form of TSD where cool incubation temperatures produce males and warm incubation temperatures produce females. In species with TSD, gonadal differentiation is regulated by network of genes and hormones that induce male or female development. TSD is most frequently studied in the laboratory using constant male and female incubation temperatures, which fail to capture the variability that organisms experience in the wild. We use ecologically relevant laboratory incubations to better understand the underlying mechanisms organizing the sex-determining process in T. scripta. Fluctuating incubations and exogenous hormones are used to produce ecologically relevant expression profiles for sex-determining genes and to decouple the effects of temperature and hormone environment on gonadal differentiation. This research represents the first time that fluctuating temperatures and hormones have been used in concert to characterize the molecular mechanisms underlying TSD and highlights the value of using laboratory conditions that more closely mimic environmental conditions.

Effects of Metal Contamination on Developing Red-eared Slider Turtles (Trachemys Scripta) and Implications for the Species as a Biomonitor

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Author : Lee Anne Moeller
Publisher :
ISBN 13 :
Total Pages : 272 pages
Book Rating : 4.:/5 (565 download)

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Book Synopsis Effects of Metal Contamination on Developing Red-eared Slider Turtles (Trachemys Scripta) and Implications for the Species as a Biomonitor by : Lee Anne Moeller

Download or read book Effects of Metal Contamination on Developing Red-eared Slider Turtles (Trachemys Scripta) and Implications for the Species as a Biomonitor written by Lee Anne Moeller and published by . This book was released on 2004 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Characterization of Immune Parameters During Development and Adulthood in the Red-eared Slider Turtle (Trachemys Scripta Elegans)

Author : Heidi K. Harms
Publisher :
ISBN 13 :
Total Pages : 168 pages
Book Rating : 4.:/5 (55 download)

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Book Synopsis Characterization of Immune Parameters During Development and Adulthood in the Red-eared Slider Turtle (Trachemys Scripta Elegans) by : Heidi K. Harms

Download or read book Characterization of Immune Parameters During Development and Adulthood in the Red-eared Slider Turtle (Trachemys Scripta Elegans) written by Heidi K. Harms and published by . This book was released on 2007 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Oxidative Stress - Environmental Induction and Dietary Antioxidants

Author :
Publisher :
ISBN 13 : 9789535105534
Total Pages : pages
Book Rating : 4.1/5 (55 download)

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Book Synopsis Oxidative Stress - Environmental Induction and Dietary Antioxidants by :

Download or read book Oxidative Stress - Environmental Induction and Dietary Antioxidants written by and published by . This book was released on 19?? with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Innate and Adaptive Immunity of the Red-eared Slider Turtle, Trachemys Scripta Elegans

Author : Laura M. Zimmerman
Publisher :
ISBN 13 :
Total Pages : 128 pages
Book Rating : 4.:/5 (794 download)

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Book Synopsis Innate and Adaptive Immunity of the Red-eared Slider Turtle, Trachemys Scripta Elegans by : Laura M. Zimmerman

Download or read book Innate and Adaptive Immunity of the Red-eared Slider Turtle, Trachemys Scripta Elegans written by Laura M. Zimmerman and published by . This book was released on 2009 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:

The Relationship Between Oxidative Stress, Antioxidants and Cancer

Author : Laura Resur Erker
Publisher :
ISBN 13 :
Total Pages : 372 pages
Book Rating : 4.:/5 (318 download)

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Book Synopsis The Relationship Between Oxidative Stress, Antioxidants and Cancer by : Laura Resur Erker

Download or read book The Relationship Between Oxidative Stress, Antioxidants and Cancer written by Laura Resur Erker and published by . This book was released on 2004 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Immune Strategy of a Long-lived Ectotherm, the Red-eared Slider Turtle, Trachemys Scripta

Author : Laura M. Zimmerman
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (988 download)

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Book Synopsis Immune Strategy of a Long-lived Ectotherm, the Red-eared Slider Turtle, Trachemys Scripta by : Laura M. Zimmerman

Download or read book Immune Strategy of a Long-lived Ectotherm, the Red-eared Slider Turtle, Trachemys Scripta written by Laura M. Zimmerman and published by . This book was released on 2013 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: All jawed vertebrates have innate and adaptive immune responses, and the same major components of these responses, including toll-like receptors, macrophages, complement, T cells, and B cells. However, despite this broad similarity, there is much natural variation in immune responses both within and among taxa. This variation may be explained by the fact that an organism can allocate resources toward different components of its immune system in response to varying pressures. Examples of pressures include environmental changes, reproductive state, or exposure to pathogens. I define an organism's immune strategy as how an organism utilizes its various components of its immune system as a result of such pressures. The goal of my dissertation was to explore the immune strategy of a long-lived ectotherm, the red-eared slider turtle, Trachemys scripta. Specifically, I examined the effects of age, temperature, and steroids on a variety of immune measures in a natural population of sliders. I found evidence for a humoral immune response that relies on innate, natural antibodies rather than adaptive, specific antibodies. I also found little evidence for a decline in humoral immune responses with age when assays were run at a constant temperature. However, B cells from older individuals did respond less to antigen stimulation than B cells from younger turtles when assays were run at higher temperatures. I also found no evidence for an effect of estrogens on the development of the red-eared slider turtle. Overall, my research suggest the red-eared slider uses an immune strategy that relies heavily on innate responses rather than adaptive.

The Effects of Antioxidants and Oxidative Stress on Tissue Damage

Author : Vickie Lynn Tatum
Publisher :
ISBN 13 :
Total Pages : 308 pages
Book Rating : 4.:/5 (311 download)

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Book Synopsis The Effects of Antioxidants and Oxidative Stress on Tissue Damage by : Vickie Lynn Tatum

Download or read book The Effects of Antioxidants and Oxidative Stress on Tissue Damage written by Vickie Lynn Tatum and published by . This book was released on 1993 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Behavioral Interactions Between the Introduced Red-eared Slider (trachemys Scripta Elegans) and the Native Midland Painted Turtle

Author : Kerry C. McKenna
Publisher :
ISBN 13 :
Total Pages : 100 pages
Book Rating : 4.:/5 (47 download)

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Book Synopsis Behavioral Interactions Between the Introduced Red-eared Slider (trachemys Scripta Elegans) and the Native Midland Painted Turtle by : Kerry C. McKenna

Download or read book Behavioral Interactions Between the Introduced Red-eared Slider (trachemys Scripta Elegans) and the Native Midland Painted Turtle written by Kerry C. McKenna and published by . This book was released on 2000 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Learning and Behavior in Hatchling Trachemys Scripta Exposed to Bisphenol-A During Embryonic Development

Author : Justin E. Dillard
Publisher :
ISBN 13 : 9780438102149
Total Pages : 92 pages
Book Rating : 4.1/5 (21 download)

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Book Synopsis Learning and Behavior in Hatchling Trachemys Scripta Exposed to Bisphenol-A During Embryonic Development by : Justin E. Dillard

Download or read book Learning and Behavior in Hatchling Trachemys Scripta Exposed to Bisphenol-A During Embryonic Development written by Justin E. Dillard and published by . This book was released on 2018 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt: Steroids play an integral role in orchestrating embryonic development, and can affect a suite of phenotypic traits, including learning and memory. Endocrine disrupting compounds (EDCs) can mimic the effects of steroids and can affect the same suites of phenotypic traits during embryonic development. Bisphenol-A (BPA) is an EDC that mimics the action of estrogen, and recent work is beginning to implicate BPA in effects on learning and behavior similar to those caused by estrogen treatment studies. Red-eared slider turtles ( Trachemys scripta) are a good system to investigate the effects of BPA on learning and behavior, both because the molecular underpinnings of the mechanistic action of BPA endocrine disruption are generally understood, and because maternal estrogens are limited to egg components allowing for controlled, intra-clutch treatment groups. We exposed T. scripta eggs to BPA during embryonic development, and tested hatchlings for effects on learning and behavior in modified T-mazes. Innate biases in arm choice during the training phase of the experiment limited our ability to assess learning. Time of day and day of experiment both had significant effects on behaviors we investigated, and we found no BPA treatment effects on behaviors. However, we found that hatchling turtles were highly individually repeatable in their behaviors. These repeatable behaviors varied between individual hatchlings, suggesting that there are discrete behavioral types in T. scripta hatchlings. The highly repetitive nature of behaviors might explain the innate biases that prevented us from examining learning with our experimental design.

Effects of Body Position and Extension of the Neck and Extremities on Lung Volume Measured Via Computed Tomography in Red-eared Slider Turtles (Trachemys Scripta Elegans)

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Author : Christoph Mans
Publisher :
ISBN 13 :
Total Pages : 40 pages
Book Rating : 4.:/5 (861 download)

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Book Synopsis Effects of Body Position and Extension of the Neck and Extremities on Lung Volume Measured Via Computed Tomography in Red-eared Slider Turtles (Trachemys Scripta Elegans) by : Christoph Mans

Download or read book Effects of Body Position and Extension of the Neck and Extremities on Lung Volume Measured Via Computed Tomography in Red-eared Slider Turtles (Trachemys Scripta Elegans) written by Christoph Mans and published by . This book was released on 2013 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: