The Experts below are selected from a list of 96 Experts worldwide ranked by ideXlab platform
Neil Greenberg - One of the best experts on this subject based on the ideXlab platform.
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Ethological Aspects of Stress in a Model Lizard, Anolis Carolinensis.
Integrative and comparative biology, 2002Co-Authors: Neil GreenbergAbstract:SYNOPSIS. Research on the stress response in reptiles can provide a useful comparative perspective for understanding how the constituent elements of the response can be put into service of diverse behavioral adaptations. A summary of the neural and endocrine causes and consequences of specific behavioral patterns seen in the small diurnal lizard, Anolis Carolinensis, has provided a model for the exploration of the dynamics of autonomic and neurohormonal contributions to adaptive behavior. In this species, changes in body color provide indices of the flux of circulating stress-relevant hormones, and are seen in situations from spontaneous exploration through agonistic behavior. Furthermore, captive adult males spontaneously and consistently manifest social dominance relationships that provide many of the elements of a stress-mediated adaptive behavioral patterns. These patterns include suppressed reproduction and long-term coping apparently based more on stress-mediated changes in motivation than acquired changes in behavior.
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The effects of progesterone on sexual behavior in male green anole lizards (Anolis Carolinensis).
Hormones and behavior, 1991Co-Authors: Larry J. Young, Neil Greenberg, David CrewsAbstract:It is well known that androgen-dependent sexual behaviors in male mammals and birds are inhibited by exogenous progesterone (P). However, recent research on male whiptail lizards (Cnemidophorus inornatus) indicates that P can stimulate sexual and copulatory behavior. We report here both antiandrogenic and synandrogenic actions of P on sexual behavior in males of another reptile, the green anole lizard (Anolis Carolinensis). Earlier reports on birds and mammals are reviewed and discussed in relation to a possible physiological role of P in influencing sexual behavior in male vertebrates.
David Crews - One of the best experts on this subject based on the ideXlab platform.
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The effects of progesterone on sexual behavior in male green anole lizards (Anolis Carolinensis).
Hormones and behavior, 1991Co-Authors: Larry J. Young, Neil Greenberg, David CrewsAbstract:It is well known that androgen-dependent sexual behaviors in male mammals and birds are inhibited by exogenous progesterone (P). However, recent research on male whiptail lizards (Cnemidophorus inornatus) indicates that P can stimulate sexual and copulatory behavior. We report here both antiandrogenic and synandrogenic actions of P on sexual behavior in males of another reptile, the green anole lizard (Anolis Carolinensis). Earlier reports on birds and mammals are reviewed and discussed in relation to a possible physiological role of P in influencing sexual behavior in male vertebrates.
Larry J. Young - One of the best experts on this subject based on the ideXlab platform.
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The effects of progesterone on sexual behavior in male green anole lizards (Anolis Carolinensis).
Hormones and behavior, 1991Co-Authors: Larry J. Young, Neil Greenberg, David CrewsAbstract:It is well known that androgen-dependent sexual behaviors in male mammals and birds are inhibited by exogenous progesterone (P). However, recent research on male whiptail lizards (Cnemidophorus inornatus) indicates that P can stimulate sexual and copulatory behavior. We report here both antiandrogenic and synandrogenic actions of P on sexual behavior in males of another reptile, the green anole lizard (Anolis Carolinensis). Earlier reports on birds and mammals are reviewed and discussed in relation to a possible physiological role of P in influencing sexual behavior in male vertebrates.
Tom W. Bargar - One of the best experts on this subject based on the ideXlab platform.
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Comparison of Long-Term Perifused Pars intermedia of Anolis Carolinensis, Rana pipiens and Hyla chrysoscelis: Their Responses to Dopamine
Neuroendocrinology, 2004Co-Authors: Earl B. Barnawell, Tom W. BargarAbstract:Pituitary pars nervosa-pars intermedia of Anolis Carolinensis, Rana pipiens and Hyla crysoscelis were perifused with synthetic medium 199 for up to 35 h. The pre-
Shozo Yokoyama - One of the best experts on this subject based on the ideXlab platform.
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Cloning of the rhodopsin-encoding gene from the rod-less lizard Anolis Carolinensis
Gene, 1994Co-Authors: Shoji Kawamura, Shozo YokoyamaAbstract:Abstract The rhodopsin (Rh) of the lizard Anolis Carolinensis has only been detected in the pineal gland which controls circadian rhythms [Foster et al., J. Comp. Physiol. (1993) 33–45]. In the present study, we isolated and sequenced a genomic DNA clone for the A. Carolinensis Rh gene. The deduced amino acid (aa) sequence revealed six A. Carolinensis-specific replacements in conserved aa residues among vertebrate Rhs. Four out of these six replacements (S22N, N199H, E232A and T319M) reside outside the transmembrane (TM) domains. Some of these replacements might have been required for Rh to function solely in the pineal gland.
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Molecular characterization of the red visual pigment gene of the American chameleon (Anolis Carolinensis)
FEBS letters, 1993Co-Authors: Shoji Kawamura, Shozo YokoyamaAbstract:The red sensitive visual pigment of the American chameleon, Anolis Carolinensis, is unique in having absorption maximum some 50 nm further into the red than any other terrestrial vertebrate examined. We report here the isolation and sequence determination of the genomic DNA clone for the Anolis red visual pigment gene. Phylogenetic analysis shows that this gene is most closely related to the gecko green and chicken red visual pigment genes. We identified nine Anolis-specific amino acid replacements, seven of which reside in transmembrane domains and might contribute to the red-shift of the Anolis visual pigments.