Endocrine Abstracts

AMP-activated protein kinase (AMPK) is a cellular gauge that is activated under conditions of low energy, increasing energy production and reducing energy waste. Centrally, the AMPK pathway is a canonical route regulating energy homeostasis, by integrating peripheral signals, such as hormones and metabolites, with neuronal networks. Current evidence links hypothalamic AMPK with feeding, brown adipose tissue (BAT) thermogenesis and browning of white adipose tissue (WAT), as wel...

The gonadal axis is an important modulator of both energy balance and metabolism. Estradiol administration to either ovariectomized female or male rats leads to inhibition of food intake and decreased body weight. Other studies have suggested the presence of estrous cycle variation in meal size and body weight in rodents, as well as during pregnancy and lactation. Recent data also indicate that estradiol modulates the appetite responses to central and peripheral signals and th...

The ‘classical’ hypothalamic neuropeptide view of feeding regulation has been extensively reviewed and revised during the last few years. Accumulating evidence indicate that pharmacological and genetic modulation of lipogenesis de novo in the hypothalamus, through selective pharmacologic and genetic manipulation of acetyl-CoA carboxylase (ACC), AMP-activated protein kinase (AMPK), carnitine palmitoyltransferase-1 (CPT1), fatty acid synthase (FAS) and malonyl-C...

p53 family controls several metabolic and cellular functions. The p63 member regulates lipid metabolism in hepatocytes and contributes to the development of liver steatosis. Here we show that p63 plays an important role in liver fibrosis. P63 is upregulated in patients with NASH, correlating positively with fibrosis score and collagen 1a1 expression. P63 expression is also increased in different animal models of diet-induced NASH and chemically induced liver fibrosis. Mice wit...

Nur77 is an orphan nuclear receptor included in the NR4A family. This protein has been studied as a transcriptional regulator of glucose metabolism in different tissues. We aimed to investigate the endogenous role of Nur77 on energy and metabolic homeostasis. For this purpose, we used male and female Nur77-deficient mice and their wild-type littermates. We challenged them to standard diet and high fat diet, and analyzed different parameters involved in energy balance (food int...

Introduction: Krüpel-like factor 4 (KLF4) is a zinc-finger-type transcription factor expressed in a range of tissues that plays multiple functions. KLF4 is expressed in neural stem cells and is critical to neuronal differentiation. Recent evidence suggests that KLF4 also plays an important role in the central regulation of energy balance. In vitro studies show that KLF4 is a transcriptional regulator of agouti–related protein (AgRP), essential to the hyperph...

Objectives: aGLP1 have been positioned as an effective and safe treatment in patients with Type 2 Diabetes Mellitus (DM2). The objective was to evaluate the changes metabolic and body composition at 6 months after initiation with Semaglutide weekly subcutaneous added to its basic treatment in patients with DM2.Material and Methods: Prospective observational study. Treatment was started in 42 patients with DM2, with weekly subcutaneous Semaglutide with a ...

Introduction: Endoglin is a transmembrane auxiliary receptor for transforming growth factor-β (TGF-β) that is predominantly expressed on proliferating endothelial cells. It plays a wide range of physiological roles but its importance on energy balance or insulin sensitivity has been unexplored.Material and methods: Heterozygous deficient mice (HZ) were fed standard chow or high fat diet during 16 weeks. Blood glucose levels were measured after ...

Aims (objectives): Energy intake and expenditure are regulated by different signals. One of the molecules implicated is islet amyloid polypeptide (IAPP or amylin), one of the major secretory products of β-cells of the pancreatic islets of Langerhans. It is a peptide that inhibits insulin and glucagon secretion, and can also act through the brain decreasing food intake and inhibiting gastric emptying. In this study, we investigated the potential effects of the chronic cent...

Introduction: p53 is a transcription factor involved in many biological functions such as stress, ageing, and metabolism. Although there is a large body of evidence showing that p53 promotes fatty acid catabolism while it inhibits anabolism through the regulation of gene expression, the possible contribution of p53 to the pathogenesis of nonalcoholic fatty liver disease (NAFLD) remains to be elucidated. Also, the anthracycline doxorubicin is an important chemotherapeutic agent...