Track topics on Twitter Track topics that are important to you
Obesity is highly associated with the development of insulin resistance and type 2 diabetes. Recently we found that adipolin/CRTP12 is an adipocytokine that exerts beneficial actions on glucose metabolism. Here we investigated the regulation of circulating adipolin under conditions of obesity and assessed its potential mechanisms. Both full and cleaved forms of adipolin were observed in mouse plasma. Diet-induced obese (DIO) mice showed a significant reduction of plasma levels of full and total (full and cleaved) adipolin compared with control mice, resulting in an increase in the ratio of cleaved to full isoform. In vitro gene transfection studies using HEK293 cells revealed that a deletion mutant of adipolin gene (Δaa90-93) caused a reduction of cleaved production of adipolin in media. A bioinformatics analysis of adipolin amino acid sequence indicated the potential involvement of the family of proprotein convertases (PCs) in cleavage of adipolin. Treatment of 3T3-L1 adipocytes with an inhibitor for PCs abolished the expression of cleaved adipolin form in the media. The expression of furin, the member of PCs, was increased in adipose tissue of DIO mice. Furin expression was also increased in cultured adipocytes by treatment with an inducer of inflammation. These data suggest that obesity states facilitate the cleavage of adipolin presumably through upregulation of furin in adipose tissue.
Department of Cardiology, Nagoya University Graduate School of Medicine, Nagoya, Japan.
This article was published in the following journal.
Name: Biochemical and biophysical research communications
Background: Adipolin, the novel adipokine that is proposed to be reduced in diabetes, obesity and inflammation, may improve glycemic control. It is known that coenzyme Q10 could improve insulin sensit...
The C1q complement/TNF-related protein (CTRP) superfamily, which includes the adipokine adiponectin, has been shown in animal models to have positive metabolic and cardiovascular effects. We sought to...
Corticosteroid-binding globulin (CBG) is involved in the regulation of cortisol delivery. Neutrophil elastase-mediated cleavage of high to low affinity CBG (haCBG to laCBG) induces cortisol release at...
Childhood obesity is a significant problem in the United States, but current childhood obesity prevention approaches have limited efficacy. Self-regulation processes organize behavior to achieve a goa...
Body weight stability requires homeostatic regulation to balance energy intake and energy expenditure. Research on this system and how it is affected by obesity has largely focused on the role of hypo...
The goal of this study is to develop and test the efficacy of a scientifically-based, culturally competent seven-session parent directed, obesity prevention program focused on parental fee...
Recent improvements in cell culture systems have led to a shift in in vitro fertilization (IVF) practice from early cleavage stage embryo transfer (ET) to blastocyst transfer. Blastocyst c...
The purpose of this pilot study is to determine whether incorporating self-regulation training using daily weighing is efficacious within a behavioral weight loss program specifically targ...
The purpose of this study is to investigate the associations between lifetime exposure to traumatic events, emotion regulation strategies, and eating pathology of patients with obesity.
This study will investigate neural activation patterns in emotion- and cognition-related brain regions during an emotion regulation task involving cognitive reappraisal, and their associat...
Agents that increase energy expenditure and weight loss by neural and chemical regulation. Beta-adrenergic agents and serotoninergic drugs have been experimentally used in patients with non-insulin dependent diabetes mellitus (NIDDM) to treat obesity.
A condition of having excess fat in the abdomen. Abdominal obesity is typically defined as waist circumferences of 40 inches or more in men and 35 inches or more in women. Abdominal obesity raises the risk of developing disorders, such as diabetes, hypertension and METABOLIC SYNDROME X.
A RNA-binding protein that stimulates the cleavage of the 3' end of MRNA near the POLYADENYLATION site. It is a heterotrimer of 55-, 64- and 77-kDa subunits and combines with CLEAVAGE STIMULATION FACTOR to form a stable complex with mRNA that directs the 3' cleavage and polyadenylation reaction.
The condition of weighing two, three, or more times the ideal weight, so called because it is associated with many serious and life-threatening disorders. In the BODY MASS INDEX, morbid obesity is defined as having a BMI greater than 40.0 kg/m2.
An RNA-binding protein that recognizes the AAUAAA RNA SEQUENCE at the 3' end of MRNA. It contains four subunits of 30, 73, 100 and 160 kDa molecular size and combines with CLEAVAGE STIMULATION FACTOR to form a stable complex with mRNA that directs the 3' cleavage and polyadenylation reaction.
Women's Health - key topics include breast cancer, pregnancy, menopause, stroke Follow and track Women's Health News on BioPortfolio: Women's Health News RSS Women'...
Diabetes Diabetes Endocrine Obesity Oxycontin Renal Disease Thyroid Disorders Endocrinology is the study of the endocrine glands and the hormones that they secrete (Oxford Medical Dictionary). There are several groups of h...