Tags

Type your tag names separated by a space and hit enter

Diet supplementation with the cis-9,trans-11 conjugated linoleic acid isomer affects the size of adipocytes in Wistar rats.
Nutr Res. 2008 Jul; 28(7):480-6.NR

Abstract

Previous reports have demonstrated that conjugated linoleic acid (CLA) acts on body fat accumulation in a variety of animal models. The aim of the present study was to investigate the effect of cis (c)-9,trans (t)-11 and t10,c12 CLA isomers on the number and size of adipocytes from the inguinal and retroperitoneal fats in Wistar male rats. A 5.1% palm oil-based diet was supplemented with CLA isomers as follows: 0.6% of c9,t11, 0.6% of t10,c12, 1.3% of c9,t11 and t10,c12 isomers in mixture, and a control nonsupplemented group for comparative purposes. Fat tissues were prepared on microscope slides for histologic examination using an image-analysis software to count the number of adipocytes and measure cell sizes. The results showed that CLA isomers did not affect (P > .05) either final body and fat depot weights or serum lipids (with the exception of triacylglycerols) and adipocytokines (leptin and adiponectin). Animals fed the c9,t11 CLA isomer diet showed larger adipocytes when compared to other groups. Independently of the CLA dietary treatment, retroperitoneal fat showed larger adipocytes (3319 microm(2)) and therefore a smaller number of adipocytes per unit of area, compared to inguinal fat (3055 microm(2)). Taken together, the data suggest that a palm oil-based diet supplemented with the c9,t11 CLA isomer in Wistar rats, in contrast to the t10,c12 isomer and the mixture of both isomers, increases adipocyte dimensions in inguinal and retroperitoneal fat depots, while having a minor effect in serum lipids and adipocytokines.

Authors+Show Affiliations

CIISA, Faculdade de Medicina Veterinária, Pólo Universitário do Alto da Ajuda, 1300-477 Lisbon, Portugal.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

19083449

Citation

Lopes, Paula A., et al. "Diet Supplementation With the Cis-9,trans-11 Conjugated Linoleic Acid Isomer Affects the Size of Adipocytes in Wistar Rats." Nutrition Research (New York, N.Y.), vol. 28, no. 7, 2008, pp. 480-6.
Lopes PA, Martins SV, Pinho MS, et al. Diet supplementation with the cis-9,trans-11 conjugated linoleic acid isomer affects the size of adipocytes in Wistar rats. Nutr Res. 2008;28(7):480-6.
Lopes, P. A., Martins, S. V., Pinho, M. S., Alfaia, C. M., Fontes, C. M., Rodrigues, P. O., Morais, G. S., Castro, M. F., Pinto, R., & Prates, J. A. (2008). Diet supplementation with the cis-9,trans-11 conjugated linoleic acid isomer affects the size of adipocytes in Wistar rats. Nutrition Research (New York, N.Y.), 28(7), 480-6. https://doi.org/10.1016/j.nutres.2008.04.002
Lopes PA, et al. Diet Supplementation With the Cis-9,trans-11 Conjugated Linoleic Acid Isomer Affects the Size of Adipocytes in Wistar Rats. Nutr Res. 2008;28(7):480-6. PubMed PMID: 19083449.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Diet supplementation with the cis-9,trans-11 conjugated linoleic acid isomer affects the size of adipocytes in Wistar rats. AU - Lopes,Paula A, AU - Martins,Susana V, AU - Pinho,Mário S, AU - Alfaia,Cristina M, AU - Fontes,Carlos M G A, AU - Rodrigues,Pedro O, AU - Morais,Graça S L, AU - Castro,Matilde F, AU - Pinto,Rui, AU - Prates,José A M, PY - 2008/02/15/received PY - 2008/04/11/revised PY - 2008/04/14/accepted PY - 2008/12/17/entrez PY - 2008/12/17/pubmed PY - 2009/3/7/medline SP - 480 EP - 6 JF - Nutrition research (New York, N.Y.) JO - Nutr Res VL - 28 IS - 7 N2 - Previous reports have demonstrated that conjugated linoleic acid (CLA) acts on body fat accumulation in a variety of animal models. The aim of the present study was to investigate the effect of cis (c)-9,trans (t)-11 and t10,c12 CLA isomers on the number and size of adipocytes from the inguinal and retroperitoneal fats in Wistar male rats. A 5.1% palm oil-based diet was supplemented with CLA isomers as follows: 0.6% of c9,t11, 0.6% of t10,c12, 1.3% of c9,t11 and t10,c12 isomers in mixture, and a control nonsupplemented group for comparative purposes. Fat tissues were prepared on microscope slides for histologic examination using an image-analysis software to count the number of adipocytes and measure cell sizes. The results showed that CLA isomers did not affect (P > .05) either final body and fat depot weights or serum lipids (with the exception of triacylglycerols) and adipocytokines (leptin and adiponectin). Animals fed the c9,t11 CLA isomer diet showed larger adipocytes when compared to other groups. Independently of the CLA dietary treatment, retroperitoneal fat showed larger adipocytes (3319 microm(2)) and therefore a smaller number of adipocytes per unit of area, compared to inguinal fat (3055 microm(2)). Taken together, the data suggest that a palm oil-based diet supplemented with the c9,t11 CLA isomer in Wistar rats, in contrast to the t10,c12 isomer and the mixture of both isomers, increases adipocyte dimensions in inguinal and retroperitoneal fat depots, while having a minor effect in serum lipids and adipocytokines. SN - 1879-0739 UR - https://www.unboundmedicine.com/medline/citation/19083449/Diet_supplementation_with_the_cis_9trans_11_conjugated_linoleic_acid_isomer_affects_the_size_of_adipocytes_in_Wistar_rats_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0271-5317(08)00094-8 DB - PRIME DP - Unbound Medicine ER -