Maternal High Fat Diet and its expressions in the Heart and Liver in the Mice Embryogenesis

Abstract

Background: The developmental biology for the nonalcoholic fatty liver disease and coronary heart disease are known but elaborative ideas of triglycerides phenomenon in the embryo-genesis of the liver and the heart are still not clear. Objective: The aim of the study was to relate different triglycerides like LXRα, LPL, LDL R, PPARG-, and SREBP-1C expression in the high fat-fed mice with the normal-fed diet mice in the process of developmen-tal and embryo-genesis biology. Methods: Tissue preparation was done by RIPA lysis. Different protein content was obtained via western blot for the 6 samples namely A.3 months embryo B.4 months embryo C.Birth day embryo D.3 days infant E. 2 weeks infant F. 4 weeks infant. Protein lysates from the heart tissues of the mice were obtained via ho-mogenization and centrifugation. Hematoxylin and Eosin staining (H and E) were done to see the fat droplets in the liver tissues at the different developmental stages. Result: LXRα,SREBP-1C expression in 3 months embryo and 4 months embryo is highly expressed in the high-fat diet. LDL-R in the high-fat diet mice is increased in 3 days infant heart but in 3 months and 4 months embryo it has low expression but from the 0th day to the 4 weeks the expression is in a decreasing trend. Similarly, LPL is highly expressed in 3 months embryo and 0th day(Birthday) and thus low expression indecreasing order until 4 weeks infant. Thus, these results collectively show that a maternal HF diet in-creases the expression of proteins such as LPL, and LDLr in the embryo phase and thus getting normal ex-pressions in the adult phase that facilitate Triglycerides (TAG) hydrolysis across the liver and the heart. Also, maternal high-fat diet increases the SREBP1c expression, leading to stimulation of LPL Expression. Conclusion: In summary, using a pregnant mice model, we found that a maternal high-fat diet increases fe-tal fat accumulation. Elevated placental LPL activity and expression of genes that facilitate placental lipid transport suggest that enhanced placental lipid transport may play a key role in maternal nutrition and obesi-ty-induced fetal fat accumulation.