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1.
Journal of Southern Medical University ; (12): 1406-1414, 2020.
Artículo en Chino | WPRIM | ID: wpr-880767

RESUMEN

OBJECTIVE@#To study the effects of high-fat (HF) diet and exercise on the expressions of asprosin and CTRP6 in adipose tissues in different regions of rats during mid-gestation.@*METHODS@#Pregnant SD rats were fed on a standard chow diet or a high-fat (60% fat content) diet for 14 days starting on gestation day (GD) 1. Starting from GD3, the rats fed either on normal or high-fat diet in the exercise groups (CH-RW and HF-RW groups) were allowed access to the running wheels for voluntary running, and those in sedentary groups (CH-SD and HF-SD groups) remained sedentary. At the end of the 14 days, adipose tissues were sampled from different regions of the rats for detecting the mRNA and protein expressions of asprosin and CTRP6 using RT-qPCR and Western blotting.@*RESULTS@#The mRNA expression of asprosin in retroperitoneal adipose tissues was significantly higher in HF-RW group than in the other 3 groups (@*CONCLUSIONS@#High-fat diet and exercise during mid-gedtation can affect the expression levels of asprosin and CTRP6 in adipose tissues of rats in a site-specific manner.


Asunto(s)
Animales , Femenino , Embarazo , Ratas , Adipoquinas , Glucemia , Dieta Alta en Grasa/efectos adversos , Grasa Intraabdominal , Ratas Sprague-Dawley
2.
Journal of Korean Medical Science ; : 465-470, 2012.
Artículo en Inglés | WPRIM | ID: wpr-36039

RESUMEN

Mutation and reduction of mitochondrial DNA (mtDNA) have been suggested as factors in the pathogenesis of several metabolic diseases. Recently, we demonstrated that C1qTNF-related protein-6 (CTRP6) is involved in fatty acid metabolism in muscle cells. In this study, we showed that expression of CTRP6 was up-regulated in mtDNA-depleted C2C12 cells, which displayed a marked decrease in cellular mtDNA and ATP content. Replacement of mtDNA normalized the expression level of CTRP6 similar to that in normal C2C12 cells, indicating that CTRP6 expression was up-regulated by mtDNA depletion. However, CTRP6 promoter activity remained unchanged in mtDNA-depleted cells. We also found that mtDNA depletion inhibited decay of CTRP6 mRNA. Taken together, mtDNA depletion induces an increase in CTRP6 expression by increasing mRNA stability.


Asunto(s)
Animales , Ratones , Adiponectina/genética , Línea Celular , ADN Mitocondrial/metabolismo , Regiones Promotoras Genéticas , Estabilidad del ARN , ARN Mensajero/metabolismo , Regulación hacia Arriba
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