Cited by 84Thermoregulation and physiological responsesExercise and Physiological ResponsesClinical Nutrition and Gastroenterology

L-Arginine Supplementation Prevents Increases in Intestinal Permeability and Bacterial Translocation in Male Swiss Mice Subjected to Physical Exercise under Environmental Heat Stress

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Costa, Kátia Anunciação, Soares, Anne Danieli Nascimento, Wanner, Samuel Penna, Santos, Rosana das Graças Carvalho dos, Fernandes, Simone Odília Antunes, Martins, Flaviano dos Santos, Nicoli, Jacques Robert, Coimbra, Cândido Celso +1 more·2014·The Journal of Nutrition

Abstract

Dietary supplementation with l-arginine has been shown to improve the intestinal barrier in many experimental models. This study investigated the effects of arginine supplementation on the intestinal permeability and bacterial translocation (BT) induced by prolonged physical exercise under heat stress. Under anesthesia, male Swiss mice (5-wk-old) were implanted with an abdominal sensor to record their core body temperature (T(core)). After recovering from surgery, the mice were divided into 3 groups: a non-supplemented group that was fed the standard diet formulated by the American Institute of Nutrition (AIN-93G; control), a non-supplemented group that was fed the AIN-93G diet and subjected to exertional hyperthermia (H-NS), and a group supplemented with l-arginine at 2% and subjected to exertional hyperthermia (H-Arg). After 7 d of treatment, the H-NS and H-Arg mice were forced to run on a treadmill (60 min, 8 m/min) in a warm environment (34°C). The control mice remained at 24°C. Thirty min before the exercise or control trials, the mice received a diethylenetriamine pentaacetic acid (DTPA) solution labeled with technetium-99m ((99m)Tc-DTPA) or (99m)Tc-Escherichia coli by gavage to assess intestinal permeability and BT, respectively. The H-NS mice terminated the exercise with T(core) values of ∼40°C, and, 4 h later, presented a 12-fold increase in the blood uptake of (99m)Tc-DTPA and higher bacterial contents in the blood and liver than the control mice. Although supplementation with arginine did not change the exercise-induced increase in T(core), it prevented the increases in intestinal permeability and BT caused by exertional hyperthermia. Our results indicate that dietary l-arginine supplementation preserves the integrity of the intestinal epithelium during exercise under heat stress, acting through mechanisms that are independent of T(core) regulation.

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  • The composition of the gut microbiota, metabolic interactions between microbial species, and the amount and type of main dietary macro- and micronutrients determine the types and amount of SCFAs produced by gut microorganisms.

    “The composition of the gut microbiota, metabolic interactions between microbial species [52] and the amount and type of the main dietary macro- and micronutrients determine the types and amount of SCFAs produced by gut microorganisms [75, 76].”

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Research works printed but not linked: 3

  1. Bouchama A, Knochel JP. Heat stroke. N Engl J Med. 2002;346:1978-88.
  2. Bailey SJ, Winyard PG, Vanhatalo A, Blackwell JR, Dimenna FJ, Wilkerson DP, Jones AM. Acute L-arginine supplementation reduces the O2 cost of moderate-intensity exercise and enhance high-intensity exercise tolerance. J Appl Physiol. 2010;109:1394-403.
  3. Diniz SOF, Resende BM, Nunan EA, Simal CJR, Cardoso VN. 99m Technetium labeled Escherichia coli. Appl Radiat Isot. 1999;51:33-6.

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Authors
Costa, K. A., Soares, A. D. N., Wanner, S. P., Santos, R. D. G. C. D., Fernandes, S. O. A., Martins, F. D. S., Nicoli, J. R., Coimbra, C. C., & Cardoso, V. N.
Affiliations
Universidade Federal de Minas Gerais (BR)
Corresponding author
Cardoso, Valbert Nascimento
Venue
The Journal of Nutrition
Publisher
Elsevier BV
Published
2014-02
Volume
144
Issue
2
Pages
218-223
ISSN
0022-3166 (ISSN-L)
OpenAlex
W2037896325
Cited by
84
References
52
Citations by year
2026: 4 · 2025: 3 · 2024: 11 · 2023: 9 · 2022: 5 · 2021: 8 · 2020: 8 · 2019: 6 · 2018: 6 · 2017: 5 · 2016: 7 · 2015: 7 · 2014: 5
FWCI
4.40
Type
journal article
Language
en
Open access
Locations
  • Journal of Nutrition (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES/Brazil)
  • Fundação de Amparo à Pesquisa do Estado de Minas Gerais (FAPEMIG)
  • Conselho Nacional de Pesquisa (CNPq/Brazil)
  • Pró-Reitoria de Pesquisa da Universidade Federal de Minas Gerais (PRPq/UFMG)
Topics
  • Health Sciences › Medicine › Physiology › Thermoregulation and physiological responses
  • Health Sciences › Medicine › Rehabilitation › Exercise and Physiological Responses
  • Health Sciences › Nursing › Nutrition and Dietetics › Clinical Nutrition and Gastroenterology
Keywords
arginine supplementation, intestinal permeability, bacterial translocation, heat stress, physical activity, intestinal barrier, core body temperature, Tc-99m DTPA
MeSH terms
Animals, Arginine, Body Temperature, Pentetic Acid, Escherichia coli, Fever, Hot Temperature, Intestinal Mucosa, Intestines, Liver, Male, Mice, Inbred Strains, Permeability, Physical Conditioning, Animal, Running, Stress, Physiological, Bacterial Translocation, Dietary Supplements, Mice

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