scholarly journals Enhancement of porcine intramuscular fat content by overexpression of the cytosolic form of phosphoenolpyruvate carboxykinase in skeletal muscle

2017 ◽  
Vol 7 (1) ◽  
Author(s):  
Zijian Ren ◽  
Ying Wang ◽  
Yuanyuan Ren ◽  
Zhengwei Zhang ◽  
Weiwang Gu ◽  
...  
Keyword(s):  
Skeletal Muscle ◽  
Phosphoenolpyruvate Carboxykinase ◽  
Intramuscular Fat ◽  
Fat Content ◽  
Intramuscular Fat Content

Ectopic overexpression of porcine DGAT1 increases intramuscular fat content in mouse skeletal muscle

2012 ◽  
Vol 22 (1) ◽  
pp. 187-194 ◽  
Author(s):  
Ting Li ◽  
Dequan Xu ◽  
Bo Zuo ◽  
Minggang Lei ◽  
Yuanzhu Xiong ◽  
...  
Keyword(s):  
Skeletal Muscle ◽  
Intramuscular Fat ◽  
Fat Content ◽  
Mouse Skeletal Muscle ◽  
Ectopic Overexpression ◽  
Intramuscular Fat Content

Skeletal muscle size is a major predictor of intramuscular fat content regardless of age

2015 ◽  
Vol 115 (8) ◽  
pp. 1627-1635 ◽  
Author(s):  
Hiroshi Akima ◽  
Akito Yoshiko ◽  
Maya Hioki ◽  
Nana Kanehira ◽  
Kiyoshi Shimaoka ◽  
...  
Keyword(s):  
Skeletal Muscle ◽  
Intramuscular Fat ◽  
Fat Content ◽  
Muscle Size ◽  
Major Predictor ◽  
Intramuscular Fat Content

scholarly journals Expression of NR3C1, INSR and SLC2A4 genes in skeletal muscles and CBG in liver depends on age and breed of pigs

2019 ◽  
Vol 64 (No. 8) ◽  
pp. 343-351
Author(s):  
Dawid Szczepankiewicz ◽  
Marek Skrzypski ◽  
Ewa Pruszyńska-Oszmałek ◽  
Sławomir Sadkowski ◽  
Maciej Sassek ◽  
...  
Keyword(s):  
Skeletal Muscle ◽  
Skeletal Muscles ◽  
Glucose Transporter ◽  
Intramuscular Fat ◽  
Fat Content ◽  
Large White ◽  
Longissimus Dorsi Muscle ◽  
Muscle Tissues ◽  
Genes Encoding ◽  
Intramuscular Fat Content

The genes encoding glucose transporter 4 (SLC2A4, GLUT4), insulin receptor (INSR) and glucocorticoid receptor (NR3C1) are considered regulators of energy metabolism that may influence fat content in skeletal muscle at different ages and breeds of pigs. In the study we performed analysis of expression of NR3C1, INSR and SLC2A4 genes in two skeletal muscle tissues: semimembranosus and longissimus dorsi muscle in gilts from three breeds of pigs that differed in intramuscular fat content: Duroc (DU), Pulawska (PUL) and Polish Large White (PLW) at 60, 90, 120, 150, 180 and 210 days after weaning. We also analyzed the expression of cortisol binding globulin (CBG) in the liver. Expression was analyzed with real time PCR (qPCR) using a relative quantification method. In blood, the concentration of cortisol, insulin and leptin were evaluated with radioimmunoassay. The concentration of metabolites (triglycerides and glucose) related to the changes of lipids content was also measured. We observed a significant relationship between the breed and the age of pigs and the expression of analyzed genes in muscle tissues (P < 0.01 for all analyzed genes) as well as with two hormones (for insulin P = 0.001; for cortisol P < 0.0001). Leptin level and metabolites in serum were not significant in the model (P > 0.05). The expression of analyzed genes (SLC2A4, INSR and NR3C1 in muscles and CBG in liver) strongly correlates with intramuscular fat content in pigs and is associated with age and breed.

Variation in the IGF2 gene promoter region is associated with intramuscular fat content in porcine skeletal muscle

2011 ◽  
Vol 39 (4) ◽  
pp. 4101-4110 ◽  
Author(s):  
Ozlem Aslan ◽  
Ruth M. Hamill ◽  
Grace Davey ◽  
Jean McBryan ◽  
Anne Maria Mullen ◽  
...  
Keyword(s):  
Skeletal Muscle ◽  
Promoter Region ◽  
Gene Promoter ◽  
Intramuscular Fat ◽  
Fat Content ◽  
Igf2 Gene ◽  
Gene Promoter Region ◽  
Intramuscular Fat Content

The Effect of Linseed on Intramuscular Fat Content and Adipogenesis Related Genes in Skeletal Muscle of Pigs

Lipids ◽  
2009 ◽  
Vol 44 (11) ◽  
pp. 999-1010 ◽  
Author(s):  
He-Feng Luo ◽  
Hong-Kui Wei ◽  
Fei-Ruo Huang ◽  
Zheng Zhou ◽  
Si-Wen Jiang ◽  
...  
Keyword(s):  
Skeletal Muscle ◽  
Intramuscular Fat ◽  
Fat Content ◽  
Intramuscular Fat Content

Partial least squares and machine learning for the prediction of intramuscular fat content of lamb loin

Meat Science ◽  
2021 ◽  
Vol 177 ◽  
pp. 108505
Author(s):  
Stephanie M. Fowler ◽  
David Wheeler ◽  
Stephen Morris ◽  
Suzanne I. Mortimer ◽  
David L. Hopkins
Keyword(s):  
Machine Learning ◽  
Least Squares ◽  
Partial Least Squares ◽  
Intramuscular Fat ◽  
Fat Content ◽  
Intramuscular Fat Content

Selection against abdominal fat percentage may increase intramuscular fat content in broilers

2016 ◽  
Vol 133 (5) ◽  
pp. 422-428 ◽  
Author(s):  
L. Leng ◽  
H. Zhang ◽  
J.Q. Dong ◽  
Z.P. Wang ◽  
X.Y. Zhang ◽  
...  
Keyword(s):  
Intramuscular Fat ◽  
Abdominal Fat ◽  
Fat Content ◽  
Fat Percentage ◽  
Intramuscular Fat Content

scholarly journals Beef tenderness and intramuscular fat proteomic biomarkers: muscle type effect

PeerJ ◽  
2018 ◽  
Vol 6 ◽  
pp. e4891 ◽  
Author(s):  
Brigitte Picard ◽  
Mohammed Gagaoua ◽  
Marwa Al-Jammas ◽  
Leanne De Koning ◽  
Albéric Valais ◽  
...  
Keyword(s):  
Triosephosphate Isomerase ◽  
Troponin T ◽  
Intramuscular Fat ◽  
Fat Content ◽  
Biological Functions ◽  
Muscle Type ◽  
Triceps Brachii ◽  
Beef Tenderness ◽  
Fast Myosin ◽  
Intramuscular Fat Content

Tenderness and intramuscular fat content are key attributes for beef sensory qualities. Recently some proteomic analysis revealed several proteins which are considered as good biomarkers of these quality traits. This study focuses on the analysis of 20 of these proteins representative of several biological functions: muscle structure and ultrastructure, muscle energetic metabolism, cellular stress and apoptosis. The relative abundance of the proteins was measured by Reverse Phase Protein Array (RPPA) in five muscles known to have different tenderness and intramuscular lipid contents: Longissimus thoracis (LT), Semimembranosus (SM), Rectus abdominis (RA), Triceps brachii (TB) and Semitendinosus (ST). The main results showed a muscle type effect on 16 among the 20 analyzed proteins. They revealed differences in protein abundance depending on the contractile and metabolic properties of the muscles. The RA muscle was the most different by 11 proteins differentially abundant comparatively to the four other muscles. Among these 11 proteins, six were less abundant namely enolase 3 (ENO3), phosphoglucomutase 1 (PGK1), aldolase (ALDOA), myosin heavy chain IIX (MyHC-IIX), fast myosin light chain 1 (MLC1F), triosephosphate isomerase 1 (TPI1) and five more abundant: Heat shock protein (HSP27, HSP70-1A1, αB-crystallin (CRYAB), troponin T slow (TNNT1), and aldolase dehydrogenase 1 (ALDH1A1). Four proteins: HSP40, four and a half LIM domains protein 1 (FHL1), glycogen phosphorylase B (PYGB) and malate dehydrogenase (MDH1) showed the same abundance whatever the muscle. The correlations observed between the 20 proteins in all the five muscles were used to construct a correlation network. The proteins the most connected with the others were in the following order MyHC-IIX, CRYAB, TPI1, PGK1, ALDH1A1, HSP27 and TNNT1. This knowledge is important for understanding the biological functions related to beef tenderness and intramuscular fat content.

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