Vinicius Araújo Armelin

ORCID: 0000-0003-3933-9346
Publications
Citations
Views
---
Saved
---
About
Contact & Profiles
Research Areas
  • Physiological and biochemical adaptations
  • Heart Rate Variability and Autonomic Control
  • Neurobiology and Insect Physiology Research
  • Neuroscience of respiration and sleep
  • Meat and Animal Product Quality
  • Aquaculture Nutrition and Growth
  • Fish biology, ecology, and behavior
  • Non-Invasive Vital Sign Monitoring
  • Ocean Acidification Effects and Responses
  • Fish Biology and Ecology Studies
  • High Altitude and Hypoxia
  • Ichthyology and Marine Biology
  • Cardiovascular Syncope and Autonomic Disorders
  • Cardiovascular and exercise physiology

Universidade de São Paulo
2021-2024

Universidade Estadual Paulista (Unesp)
2016-2024

National Council for Scientific and Technological Development
2016-2024

Fundação de Amparo à Pesquisa do Estado de São Paulo
2016-2024

Universidade Federal de São Carlos
2014-2017

National Institute of Standards and Technology
2014-2015

Carnivorous reptiles exhibit an intense metabolic increment during digestion, which is accompanied by several cardiovascular adjustments responsible for meeting the physiological demands of gastrointestinal system. Postprandial tachycardia, a well-documented phenomenon in these animals, mediated withdrawal vagal tone associated with chronotropic effects non-adrenergic and non-cholinergic (NANC) factors. However, herbivorous modest digestion there no information about postprandial...

10.1242/jeb.247105 article EN publisher-specific-oa Journal of Experimental Biology 2024-01-08

ABSTRACT The metabolic increment that occurs after feeding demands cardiovascular adjustments to be maintained, as increased heart rate ( f H ) and cardiac output. In mammals, postprandial tachycardia seems triggered by an increase in adrenergic activity nonadrenergic noncholinergic (NANC) factors, while ectothermic vertebrates, this adjustment linked a withdrawal of vagal drive well NANC factors. Because the factors behind have not yet been investigated crocodilians, present study sought...

10.1002/jez.2036 article EN Journal of Experimental Zoology Part A Ecological Genetics and Physiology 2016-09-21

Abstract In terrestrial environments, upright spatial orientation can dramatically influence animals’ hemodynamics. Generally, large and elongated species are particularly sensitive to such due the greater extent of their vascular beds being verticalized, favoring establishment blood columns in bodies along with caudal pooling, thus jeopardizing circulation through a cascade effect reductions venous return, cardiac filling, stroke volume, output, arterial pressure. This hypotension triggers...

10.1002/jez.2213 article EN Journal of Experimental Zoology Part A Ecological and Integrative Physiology 2018-03-01

Abstract The most commonly used technique to study the barostatic regulation of blood pressure in ectothermic vertebrates consists determining heart rate response pharmacological manipulations pressure, so‐called “Oxford method.” Although well established, Oxford method has some important limitations, such as induction hypervolemia small animals and undesired effects vasoactive drugs on central peripheral baroreflex components. As an alternative, sequence method, which computerized...

10.1002/jez.2448 article EN Journal of Experimental Zoology Part A Ecological and Integrative Physiology 2021-01-27

Orthostatic hypotension is a phenomenon triggered by change in the position or posture of an animal, from horizontal to vertical head-up orientation, characterised blood pooling lower body and reduction central cranial arterial pressure (PA). This elicits systemic vasoconstriction tachycardia, which generally reduce increase PA. Little known about mediation importance such cardiovascular adjustments that counteracts haemodynamic effects orthostasis ectothermic vertebrates, some discrepancies...

10.1242/jeb.197848 article EN publisher-specific-oa Journal of Experimental Biology 2019-01-01
Coming Soon ...