• Publications
  • Influence
Specific dynamic action: a review of the postprandial metabolic response
  • S. Secor
  • Biology, Medicine
  • Journal of Comparative Physiology B
  • 2008
TLDR
There are innumerable opportunities for research in SDA including coverage of unexplored taxa, investigating the underlying sources, determinants, and the central control of postprandial metabolism, and examining the integration of SDA across other physiological systems. Expand
Adaptive responses to feeding in Burmese pythons: pay before pumping.
TLDR
The response of O2 consumption (referred to as specific dynamic action, SDA) is the largest, and the upregulation of intestinal nutrient transporters the second largest, response reported for any vertebrate upon feeding. Expand
Postprandial remodeling of the gut microbiota in Burmese pythons
TLDR
The observed large-scale alterations of the gut microbiota that accompany the Burmese python's own dramatic physiological and morphological changes during feeding and fasting emphasize the need to consider both microbial and host cellular responses to nutrient flux. Expand
Evolution of Regulatory Responses to Feeding in Snakes
TLDR
Quantitative calculations of partial energy budgets suggest that energy savings drive the evolution of low mass and activities of organs during fasting and of large postfeeding regulatory responses in infrequent feeders. Expand
Ventilatory and cardiovascular responses of a python (Python molurus) to exercise and digestion.
TLDR
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. Expand
Determinants of the Postfeeding Metabolic Response of Burmese Pythons, Python molurus
TLDR
Sit-and-wait-foraging snakes, which consume large meals at long and unpredictable intervals, reduce standard metabolic rate by allowing the energetically expensive small intestine and other associated organs to atrophy between meals but thereby incur a large specific dynamic action while rebuilding those organs upon feeding. Expand
A vertebrate model of extreme physiological regulation
TLDR
In juvenile pythons during feeding, there are large and rapid increases in metabolism and secretion, in the activation of enzymes and transporter proteins, and in tissue growth, which enable an economic hypothesis concerning the evolution of regulation to be tested. Expand
Gastric function and its contribution to the postprandial metabolic response of the Burmese python Python molurus
  • S. Secor
  • Biology, Medicine
  • Journal of Experimental Biology
  • 15 May 2003
TLDR
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. Expand
Regulation of digestive performance: a proposed adaptive response.
  • S. Secor
  • Biology, Medicine
  • Comparative biochemistry and physiology. Part A…
  • 1 March 2001
TLDR
The evidence presented supports the hypothesis that the extent by which the gut is regulated is an adaptive trait that evolved with divergence in feeding habits and energy budgets, and suggests future tests of this adaptive hypothesis are presented. Expand
Effects of meal size on postprandial responses in juvenile Burmese pythons (Python molurus).
TLDR
Pythons undergo a wide array of postprandial responses, many of which differ in their sensitivity to meal size, and responses increased with meal size up to the largest meals studied. Expand
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