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A comprehensive morphometric study of visceral and subcutaneous adipose tissue depots in mice, hamsters and rats / Un estudio morfométrico completo de los depósitos de tejido adiposo visceral y subcutáneo en ratones, hámsters y ratas
Miljkovic, Dejan; Drljaca, Jovana; Lovrenski, Aleksandra; Gajic, Milica.
  • Miljkovic, Dejan; University of Novi Sad. Faculty of Medicine. Department of Histology and Embryology. Novi Sad. RS
  • Drljaca, Jovana; University of Novi Sad. Faculty of Medicine. Department of Pharmacy. Novi Sad. RS
  • Lovrenski, Aleksandra; University of Novi Sad. Faculty of Medicine. Department of Pathology. Novi Sad. RS
  • Gajic, Milica; University of Novi Sad. Faculty of Medicine. Novi Sad. RS
Int. j. morphol ; 40(5): 1219-1227, 2022. ilus, tab
Article in English | LILACS | ID: biblio-1405274
ABSTRACT

SUMMARY:

Adipose tissue morphology of different fat tissue depots can be described using the number of adipocytes and cell surface of adipocytes. This study deals with characteristics and morphometric analysis of white and brown adipose tissue depots in healthy adult laboratory mice, hamsters and rats of both sexes. The number of unilocular adipocytes in white adipose tissue differs from one adipose tissue depot to another, with the largest number of adipocytes in mice and a similar number in hamsters and rats. The smallest surface area and the largest percentage of small unilocular adipocytes were found in mice. White adipose tissue in hamsters and rats was predominantly made out of a larger percentage of medium-sized adipocytes and a smaller percentage of small and medium-sized adipocytes. Uncoupling protein 1 positive multilocular adipocytes were found in classic brown adipose tissue depots with larger percentages in mice (93.20 %) and hamsters (91.30 %), while rats had a smaller percentage (78.10 %). In white and brown adipose tissue, significant differences between species and both sexes within the same species were found, indicating the influence of sexual dimorphism. The presented morphometric results could serve as a basis for further studies concerning experimental animal models of metabolic disorders and obesity.
RESUMEN
RESUMEN La morfología del tejido adiposo de diferentes depósitos de tejido graso se puede describir utilizando el número de adipocitos y la superficie celular de los adipocitos. Este estudio analiza las características y el análisis morfométrico de los depósitos de tejido adiposo blanco y marrón en ratones, hamsters y ratas de laboratorio, adultos sanos de ambos sexos. El número de adipocitos uniloculares en el tejido adiposo blanco difiere de un depósito de tejido adiposo a otro, con el mayor número de adipocitos en ratones y un número similar en hámsteres y ratas. La superficie más pequeña y el mayor porcentaje de adipocitos uniloculares pequeños se encontraron en ratones. El tejido adiposo blanco en hámsteres y ratas estaba compuesto predominantemente por un mayor porcentaje de adipocitos de tamaño mediano y un porcentaje menor de adipocitos de tamaño pequeño y mediano. Los adipocitos multiloculares positivos para la proteína desacopladora 1 se encontraron en depósitos de tejido adiposo marrón clásico con mayores porcentajes en ratones (93,20 %) y hámsters (91,30 %), mientras que las ratas tenían un porcentaje menor (78,10 %). En el tejido adiposo blanco y pardo se encontraron diferencias significativas entre especies y entre ambos sexos dentro de una misma especie, lo que indica la influencia del dimorfismo sexual. Los resultados morfométricos presentados podrían servir como base para futuros estudios sobre modelos animales experimentales de trastornos metabólicos y obesidad.
Subject(s)


Full text: Available Index: LILACS (Americas) Main subject: Adipose Tissue, Brown / Subcutaneous Fat / Adipose Tissue, White Type of study: Prognostic study Limits: Animals Language: English Journal: Int. j. morphol Journal subject: Anatomy Year: 2022 Type: Article Affiliation country: Mexico Institution/Affiliation country: University of Novi Sad/RS

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Full text: Available Index: LILACS (Americas) Main subject: Adipose Tissue, Brown / Subcutaneous Fat / Adipose Tissue, White Type of study: Prognostic study Limits: Animals Language: English Journal: Int. j. morphol Journal subject: Anatomy Year: 2022 Type: Article Affiliation country: Mexico Institution/Affiliation country: University of Novi Sad/RS