Research Topics
| Stephen M SecorSummaryAffiliation: University of Alabama Country: USA Publications
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Detail Information
Publications
Adaptive regulation of digestive performance in the genus PythonBrian D Ott
Department of Biological Sciences, The University of Alabama, Tuscaloosa, AL 35487 0344, USA
J Exp Biol 210:340-56. 2007....
Integrated postprandial responses of the diamondback water snake, Nerodia rhombiferChristian L Cox
Department of Biology, Universitiy of Texas, Arlington, TX 76010, USA
Physiol Biochem Zool 83:618-31. 2010..rhombifer is generally modest and matched in magnitude...- Selected regulation of gastrointestinal acid-base secretion and tissue metabolism for the diamondback water snake and Burmese pythonStephen M Secor
Department of Biological Sciences, University of Alabama, Tuscaloosa, AL 35487 0344, USA
J Exp Biol 215:185-96. 2012..By maintaining elevated GI performance between meals, fasted water snakes incur the additional cost of tissue activity, which is expressed in a higher standard metabolic rate... 
Sequencing the genome of the Burmese python (Python molurus bivittatus) as a model for studying extreme adaptations in snakesTodd A Castoe
Department of Biochemistry and Molecular Genetics, University of Colorado School of Medicine, 12801 17th Ave, Aurora, CO 80045, USA
Genome Biol 12:406. 2011..Here, we describe how this will be done, what analyses this work will include, and provide a timeline...- A multi-organ transcriptome resource for the Burmese Python (Python molurus bivittatus)Todd A Castoe
Department of Biochemistry and Molecular Genetics, University of Colorado School of Medicine, Aurora, CO 80045 USA
BMC Res Notes 4:310. 2011..abstract:.. - Effects of meal size, meal type, and body temperature on the specific dynamic action of anuransStephen M Secor
Department of Biological Sciences, The University of Alabama, Box 870344, Tuscaloosa, AL 35487 0344, USA
J Comp Physiol B 177:165-82. 2007..For 13 or 15 species of anurans ranging in mass from 2.4 to 270 g, SMR, postprandial peak VO(2) and SDA scaled with body mass (log-log) with mass exponents of 0.79, 0.93, and 1.05, respectively... - Physiological responses to feeding, fasting and estivation for anuransStephen M Secor
Department of Physiology, University of California at Los Angeles, School of Medicine, Los Angeles, CA 90095 1751, USA
J Exp Biol 208:2595-608. 2005..The depression in gut performance during estivation aids in reducing energy expenditure, thereby increasing the duration that the animal can remain dormant while relying solely upon stored energy... - Prioritizing blood flow: cardiovascular performance in response to the competing demands of locomotion and digestion for the Burmese python, Python molurusStephen M Secor
Department of Biological Sciences, University of Alabama, Tuscaloosa, AL 35487 0344, USA
J Exp Biol 213:78-88. 2010..When faced with the dual demands of digestion and crawling, Burmese pythons prioritize blood flow, apparently diverting visceral supply to the axial muscles... - Digestive physiology of the Burmese python: broad regulation of integrated performanceStephen M Secor
Department of Biological Sciences, The University of Alabama, Tuscaloosa, AL 35405, USA
J Exp Biol 211:3767-74. 2008..Unmatched in the magnitude of its numerous physiological responses to feeding, the Burmese python is a very attractive model for examining the capacities and regulatory mechanisms of physiological performance... - Specific dynamic action of ambystomatid salamanders and the effects of meal size, meal type, and body temperatureStephen M Secor
Department of Biological Sciences, University of Alabama, Tuscaloosa, 35487 0344, USA
Physiol Biochem Zool 79:720-35. 2006..t. tigrinum. Among the six species, standard metabolic rate, peak postprandial VO(2), and SDA scaled with body mass with mass exponents of 0.72, 0.78, and 1.05, respectively... - Specific dynamic action: a review of the postprandial metabolic responseStephen M Secor
Department of Biological Sciences, University of Alabama, Tuscaloosa, AL 35487 0344, USA
J Comp Physiol B 179:1-56. 2009.... - Non-invasive measure of body composition of snakes using dual-energy X-ray absorptiometryStephen M Secor
Department of Biology, University of Mississippi, P O Box 1848, University, MS 38677 1848, USA
Comp Biochem Physiol A Mol Integr Physiol 136:379-89. 2003..5%. Compared to other non-invasive techniques, include body condition indices, total body electrical conductivity (TOBEC) and cyclopropane absorption, DXA can more easily and accurately be used to determine the body composition of snakes... - Gastric function and its contribution to the postprandial metabolic response of the Burmese python Python molurusStephen M Secor
Department of Physiology, University of California at Los Angeles, School of Medicine, Los Angeles, CA 90095 1751, USA
J Exp Biol 206:1621-30. 2003..Operating on a 'pay before pumping' principle, pythons must expend endogenous energy in order to initiate acid production and other digestive processes before ingested nutrients can be absorbed and channeled into metabolic pathways... - Effects of meal size, meal type, body temperature, and body size on the specific dynamic action of the marine toad, Bufo marinusStephen M Secor
Department of Biology, University of Mississippi, University, MS 38677, USA
Physiol Biochem Zool 75:557-71. 2002..Controlling for meal size, meal type, and body temperature, the specific dynamic responses of B. marinus are similar to those of the congeneric Bufo alvarius, Bufo boreas, Bufo terrestris, and Bufo woodhouseii... - Luminal nutrient signals for intestinal adaptation in pythonsStephen M Secor
Department of Physiology, University of California, Los Angeles, School of Medicine, 90095, USA
Am J Physiol Gastrointest Liver Physiol 283:G1298-309. 2002..This is understandable because pythons, as carnivores, have a high-protein diet... - Responses of python gastrointestinal regulatory peptides to feedingS M Secor
Department of Physiology, University of California School of Medicine, Los Angeles, CA 90095 1751, USA
Proc Natl Acad Sci U S A 98:13637-42. 2001..These large postfeeding responses, and similarities of peptide structure with mammals, make pythons an attractive model for studying GI peptides... - Morphological plasticity of vertebrate aestivationStephen M Secor
Department of Biological Sciences, University of Alabama, 870344, Tuscaloosa, AL 35487 0344, USA
Prog Mol Subcell Biol 49:183-208. 2010..Ample opportunity exists to remedy the paucity of studies on the morphological plasticity of organs and tissues to aestivation and examine how such responses dictate tissue function during and immediately following aestivation... - Effects of meal size, clutch, and metabolism on the energy efficiencies of juvenile Burmese pythons, Python molurusChristian L Cox
Department of Biological Sciences, The University of Alabama, Tuscaloosa, AL 35487 0344, USA
Comp Biochem Physiol A Mol Integr Physiol 148:861-8. 2007..Among these clutches production efficiency was negatively correlated with standard metabolic rate (SMR). Clutches containing individuals with low SMR were therefore able to allocate more of ingested energy into growth... - Cooking and grinding reduces the cost of meat digestionScott M Boback
Department of Biological Sciences, University of Alabama, Tuscaloosa, AL 35487, USA
Comp Biochem Physiol A Mol Integr Physiol 148:651-6. 2007..4%. These results support the hypothesis that the consumption of cooked meat provides an energetic benefit over the consumption of raw meat... - Matched regulation of gastrointestinal performance in the Burmese python, Python molurusChristian L Cox
Department of Biological Sciences, The University of Alabama, Tuscaloosa, AL 35487 0344, USA
J Exp Biol 211:1131-40. 2008..The concomitant postprandial upregulation of tissue morphology, intestinal nutrient transport rates and enzyme activities illustrate, for the python, the matched regulation of their gastrointestinal performance with each meal... - Effects of feeding on luminal pH and morphology of the gastroesophageal junction of snakesScott M Bessler
Department of Biological Sciences, University of Alabama, Box 870344, Tuscaloosa, AL 35487, USA
Zoology (Jena) 115:319-29. 2012..Given that this modest reflux of gastric fluid is localized to the most distal region of the esophagus, snakes are apparently able to prevent and protect against acid reflux in the absence of a functional LES... - Reply to "heart position in snakes"Gabriel E A Gartner
Department of Biology, University of California, Riverside, California 92521 2Department of Ecology and Evolutionary Biology, University of California, Irvine, California 92697 2525 3Departamento de Zoologia, Universidade Estadual Paulista, Rio Claro, Sao Paulo, 13506 900, Brazil 4Department of Biological Sciences, Box 870344, University of Alabama, Tuscaloosa, Alabama 35487
Physiol Biochem Zool 84:102-6. 2011..We look forward to new data on the positions of snake hearts and further analyses that seek to test adaptive hypotheses by rigorous phylogenetic approaches... - New insights into the physiology of natural foragingJennifer M Burns
Department of Biological Sciences, 3211 Providence Drive, University of Alaska, Anchorage, AK 99508, USA
Physiol Biochem Zool 79:242-9. 2006.... - Phylogeny, ecology, and heart position in snakesGabriel E A Gartner
Department of Biology, University of California, Riverside, California 92521, USA
Physiol Biochem Zool 83:43-54. 2010..Our results suggest that overcoming gravitational pressure gradients in snakes most likely involves the combined action of several cardiovascular and behavioral adaptations in addition to alterations in relative heart location... - A vertebrate model of extreme physiological regulationS M Secor
Department of Physiology, University of California Medical School, Los Angeles 90095 1751, USA
Nature 395:659-62. 1998..Combined with other experimental advantages, these features recommend juvenile pythons as the equivalent of a squid axon in vertebrate regulatory biology... - Effect of feeding on circulating micronutrient concentrations in the Burmese python (Python molurus)S M Secor
Department of Biology, University of Mississippi, University, MS 38677, USA
Comp Biochem Physiol A Mol Integr Physiol 129:673-9. 2001..Most micronutrient concentrations appear to plateau 3 days after feeding, suggesting that pythons have relatively rapid homeostasis of micronutrients despite the ingestion of large meals... - Evolution of regulatory responses to feeding in snakesS M Secor
Department of Biology, University of Mississippi, University, MS 38677, USA
Physiol Biochem Zool 73:123-41. 2000..We propose further tests of this hypothesis among other snake species and among other ectotherms... - Ventilatory and cardiovascular responses of a python (Python molurus) to exercise and digestionS M Secor
Department of Physiology, University of California at Los Angeles School of Medicine, Los Angeles, CA 90095 1751, USA
J Exp Biol 203:2447-54. 2000..Evidently, the capacities of the ventilatory and cardiovascular systems to transport oxygen to locomotor muscles are not a limiting factor in the attainment of peak metabolic rates during exercise in pythons.. - Luminal and systemic signals trigger intestinal adaptation in the juvenile pythonS M Secor
Department of Physiology, School of Medicine, University of California Los Angeles, Los Angeles, California 90095, USA
Am J Physiol Gastrointest Liver Physiol 279:G1177-87. 2000.... - Specific dynamic action of a large carnivorous lizard, Varanus albigularisS M Secor
Department of Physiology, UCLA School of Medicine 90095 1751, USA
Comp Biochem Physiol A Physiol 117:515-22. 1997..albigularis may also down-regulate intestinal performance during their months of fasting (suggested by their relatively low standard metabolic rate) and then up-regulate their gut (bearing its high energetic cost) upon feeding... - Postprandial morphological response of the intestinal epithelium of the Burmese python (Python molurus)Jean Herve Lignot
CNRS, Centre d Ecologie et Physiologie Energetiques, Strasbourg, France
Comp Biochem Physiol A Mol Integr Physiol 141:280-91. 2005..Further exploration of the python intestine will reveal the underlying mechanisms of these trophic responses and the origin and fate of the engulfed particles...