POSTNATAL EVALUATION OF PULMONARY ARTERIOLES IN BABY ALPACA

Authors

  • Zarela Manrique E. Laboratorio de Fisiología Animal
  • Boris Lira M. Laboratorio de Fisiología Animal
  • María Vásquez C. Laboratorio de Fisiología Animal
  • Juan Espinoza B. Laboratorio de Farmacología y Toxicología Veterinaria
  • Pedro Angulo H. Laboratorio de Farmacología y Toxicología Veterinaria
  • Gabriela Rojas Z. Laboratorio de Fisiología Animal
  • Mariella Ramos G. Laboratorio de Reproducción, Facultad de Medicina Veterinaria, Universidad Nacional Mayor de San Marcos, Lima
  • José Rodríguez G. Laboratorio de Fisiología Animal

DOI:

https://doi.org/10.15381/rivep.v24i2.2475

Keywords:

pulmonary arterioles, postnatal, baby alpaca

Abstract

In the postnatal phase in mammalians, the vasodilatation of the pulmonary arterioles is critical, since this will affect the amount of blood passing through the alveoli for oxygenation. The aim of the study was to evaluate the diameter, the thickness of the muscle layer and the relationship muscle layer/arteriolar diameter (CM/DA) as indication of changes in the vascular lumen in the postnatal period of baby alpacas. Lungs of 36 alpacas between 1 to 45 days of age were obtained according to nine age groups (one group each 5 days of age). The lung histological sections were stained with Mallory’s phosphotungstic acid hematoxylin. The arteriolar diameter showed a significant increase (p<0.05) between age groups 1 and 2 versus 7, 8 and 9. The thickness of the muscle layer showed no significant changes between groups, while the CM/DA relationship values decreased with age (groups 1 and 2 were statistical different of groups 6, 7, 8 and 9; p<0.05). It is concluded that the CM/DA relationship decreases and the lumen of pulmonary arterioles increases according to age, and this is due to increased arteriolar diameter (p<0.05) but not to thickness of smooth muscles.

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Published

2013-06-10

Issue

Vol. 24 No. 2 (2013)

Section

Artículos Primarios

License

Copyright (c) 2013 Zarela Manrique E., Boris Lira M., María Vásquez C., Juan Espinoza B., Pedro Angulo H., Gabriela Rojas Z., Mariella Ramos G., José Rodríguez G.

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

AUTHORS RETAIN THEIR RIGHTS:

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b. Authors retain their right to share, copy, distribute, perform and publicly communicate their article (eg, to place their article in an institutional repository or publish it in a book), with an acknowledgment of its initial publication in the Revista de Investigaciones Veterinarias del Perú (RIVEP).

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How to Cite

Manrique E., Z., Lira M., B., Vásquez C., M., Espinoza B., J., Angulo H., P., Rojas Z., G., Ramos G., M., & Rodríguez G., J. (2013). POSTNATAL EVALUATION OF PULMONARY ARTERIOLES IN BABY ALPACA. Revista De Investigaciones Veterinarias Del Perú, 24(2), 155-161. https://doi.org/10.15381/rivep.v24i2.2475