Aging-Related Functional and Structural Changes in Renal Tissues: Lesson from a Camel Model.

Microsc Microanal

Histology and Cytology Department, Faculty of Veterinary Medicine, Damanhour University, Damanhour22511, Egypt.

Published: March 2021

AI Article Synopsis

  • Renal aging is a natural process affecting all animals, but specific changes in camel kidneys were previously unknown.
  • The study analyzed kidney samples from 25 male camels of different ages, revealing significant changes such as decreased podocin and increased smoothening in older camels.
  • The research highlights important gene expression changes linked to aging, potentially guiding future strategies to maintain kidney health.

Article Abstract

Renal aging is a progressive, physiological, and anatomical change that naturally occurs in all animal species. To date, no information is available concerning the aging-related structural and functional changes in camel kidneys. A total of 25 healthy male camels (14 aged 4–6 years and 11 aged 18–22 years) were included in this study. After the camels were slaughtered, samples were collected from all the camels’ kidneys and prepared for histopathological, immunohistochemical, and gene expression evaluations. The most striking observation was the significant decline in the immunohistochemical abundance of podocin and the significant upregulation of smoothening in the aging camels’ kidneys. However, the nonsignificant changes have reported for nephrin, calbindin, autophagy 5 (ATG5), aquaporin 1, and toll-like receptor 9. Furthermore, the mRNA expressions of sirtuin 1, superoxide dismutase 1, superoxide dismutase 2, peroxisome proliferator-activated receptor alpha, B-cell lymphoma 2 (Bcl-2), and erythropoietin were significantly decreased in the aging camels’ kidneys. While the significant upregulation of Bcl-2-associated X protein and the nonsignificant increase in ATG5 expression levels were reported in the aging camels’ kidneys. The present findings provide better understanding of the complex events and initiating factors of aging, allowing for the development of a future therapeutic strategy to preserve adequate renal function throughout life.

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http://dx.doi.org/10.1017/S1431927621000210DOI Listing

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