Daily cycle in hepatic lipid metabolism in obese mice, Neotomodon alstoni: Sex differences. 2018

Moisés Pérez-Mendoza, and Julieta Berenice Rivera-Zavala, and Asael H Rodríguez-Guadarrama, and Luis M Montoya-Gomez, and Agustín Carmona-Castro, and Mauricio Díaz-Muñoz, and Manuel Miranda-Anaya
a Unidad Multidisciplinaria de Docencia e Investigación, Facultad de Ciencias , Universidad Nacional Autónoma de México , Juriquilla , Qro.

Disruption of circadian rhythms influences the pathogenesis of obesity, particularly with the basic regulation of food intake and metabolism. A link between metabolism and the circadian clock is the peroxisome proliferator-activated receptors (PPARs). The Neotomodon alstoni mouse, known as the "Mexican volcano mouse," may develop obesity if fed a normo-caloric diet. This manuscript documents the changes in part of the hepatic lipid homeostasis in both sexes of lean and obese N. alstoni mice, comparing the daily changes in the BMAL1 clock protein, in regulators of lipid metabolism (PGC-1α, PPARα-γ, SREBP-1c, and CPT-1α) and in free fatty acid (FFA) and hepatic triacylglyceride (TAG) metabolites in light-dark cycles. Hepatic tissue and blood were collected at 5, 10, 15, 19, and 24 h. Samples were analyzed by western blotting to determine the relative presence of protein. The results indicate that obesity affects daily changes in lipid metabolism and the BMAL1 profile in females considerably more than in males. These results suggest that the impact of obesity on lipid metabolism has important differences according to sex.

UI MeSH Term Description Entries
D008099 Liver A large lobed glandular organ in the abdomen of vertebrates that is responsible for detoxification, metabolism, synthesis and storage of various substances. Livers
D008297 Male Males
D009765 Obesity A status with BODY WEIGHT that is grossly above the recommended standards, usually due to accumulation of excess FATS in the body. The standards may vary with age, sex, genetic or cultural background. In the BODY MASS INDEX, a BMI greater than 30.0 kg/m2 is considered obese, and a BMI greater than 40.0 kg/m2 is considered morbidly obese (MORBID OBESITY).
D002334 Carnitine O-Palmitoyltransferase An enzyme that catalyzes reversibly the conversion of palmitoyl-CoA to palmitoylcarnitine in the inner mitochondrial membrane. EC 2.3.1.21. Carnitine Palmitoyltransferase,CPT II,Carnitine Acyltransferase I,Carnitine Palmitoyltransferase I,Carnitine Palmitoyltransferase II,Palmitoylcarnitine Transferase,Palmitylcarnitine Acyltransferase,Acyltransferase I, Carnitine,Acyltransferase, Palmitylcarnitine,Carnitine O Palmitoyltransferase,II, Carnitine Palmitoyltransferase,O-Palmitoyltransferase, Carnitine,Palmitoyltransferase I, Carnitine,Palmitoyltransferase II, Carnitine,Palmitoyltransferase, Carnitine,Transferase, Palmitoylcarnitine
D002940 Circadian Rhythm The regular recurrence, in cycles of about 24 hours, of biological processes or activities, such as sensitivity to drugs or environmental and physiological stimuli. Diurnal Rhythm,Nyctohemeral Rhythm,Twenty-Four Hour Rhythm,Nycthemeral Rhythm,Circadian Rhythms,Diurnal Rhythms,Nycthemeral Rhythms,Nyctohemeral Rhythms,Rhythm, Circadian,Rhythm, Diurnal,Rhythm, Nycthemeral,Rhythm, Nyctohemeral,Rhythm, Twenty-Four Hour,Rhythms, Circadian,Rhythms, Diurnal,Rhythms, Nycthemeral,Rhythms, Nyctohemeral,Rhythms, Twenty-Four Hour,Twenty Four Hour Rhythm,Twenty-Four Hour Rhythms
D004195 Disease Models, Animal Naturally-occurring or experimentally-induced animal diseases with pathological processes analogous to human diseases. Animal Disease Model,Animal Disease Models,Disease Model, Animal
D005230 Fatty Acids, Nonesterified FATTY ACIDS found in the plasma that are complexed with SERUM ALBUMIN for transport. These fatty acids are not in glycerol ester form. Fatty Acids, Free,Free Fatty Acid,Free Fatty Acids,NEFA,Acid, Free Fatty,Acids, Free Fatty,Acids, Nonesterified Fatty,Fatty Acid, Free,Nonesterified Fatty Acids
D005260 Female Females
D000071248 Peroxisome Proliferator-Activated Receptor Gamma Coactivator 1-alpha A transcriptional co-activator for NUCLEAR RECEPTORS. It is characterized by an N-terminal LxxLL sequence, a region that interacts with PPAR GAMMA, and a C-terminal RNA RECOGNITION MOTIF. It increases expression of MITOCHONDRIAL UNCOUPLING PROTEIN to regulate genes involved in metabolic reprogramming in response to dietary restriction and the integration of CIRCADIAN RHYTHMS with ENERGY METABOLISM. PGC-1-alpha Protein,PPARGC-1-alpha Protein,PPARGC1a Protein,PGC 1 alpha Protein,PPARGC 1 alpha Protein,Peroxisome Proliferator Activated Receptor Gamma Coactivator 1 alpha
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia

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