Stability-, equilibrium- and kinetic binding parameters, transformation rate and sedimentation properties of liver cytosol glucocorticoid receptor from insulin-treated rats were studied. 40% elevation of cytosolic glucocorticoid binding and a lower affinity of the receptor for ligand were observed in hypoglycemic rats as compared to the controls. A small but significant decrease of [3H]triamcinolone acetonide-receptor complexes association rate and an increase of dissociation rate were also found. The rate and the extent of activation of the complexes from insulin-treated rats were somewhat higher compared to the controls, and the complexes from both groups showed higher affinity for the nuclei isolated from insulin-treated animals. Mixing experiments suggested that insulin treatment lead to alterations at the level of both the receptor protein and the nuclear binding sites. Sedimentation properties of transformed and untransformed receptor remained unchanged upon insulin treatment. The physiological relevance of the data was confirmed by hypoglycemia-related stimulation of tyrosine aminotransferase induction by dexamethasone.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/0167-4889(90)90193-h | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Brain receptor dynamics in early and adult life stress: Gateways to maladaptive coping strategies.
Neurobiol Stress
January 2025
Fralin Biomedical Research Institute at VTC, Roanoke, VA, USA.
Stress plays a significant role in the onset of numerous psychiatric disorders. Depending on individual resilience or stressor's nature, long-term changes to stress in the brain can lead to a wide range of behavioral symptoms, including social withdrawal, feelings of helplessness, and emotional overeating. The brain receptor molecules are key mediators of these processes, translating neuromodulatory signals into neuronal responses or circuit activity changes that ultimately shape behavioral outcomes.
View Article and Find Full Text PDFCorticosterone-induced postpartum depression induces depression-like behavior and impairs hippocampal neurogenesis in adolescent offspring via HPA axis and BDNF-mTOR pathway.
Neurobiol Stress
January 2025
State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, 611137, China.
Postpartum depression (PPD) adversely affects the growth and development of the offspring, increasing the risk of various internalizing behaviorsduring adolescence. Studies have shown that corticosterone (CORT)-induced PPD affects neurogenesis in the offspring, which is closely related to the onset of depression. However, the underlying mechanisms of these changes in the offspring of PPD mothers remain unexplored.
View Article and Find Full Text PDFA human metabolic map of pharmacological perturbations reveals drug modes of action.
Nat Biotechnol
January 2025
Department of Biomedicine, University of Basel, Basel, Switzerland.
Understanding a small molecule's mode of action (MoA) is essential to guide the selection, optimization and clinical development of lead compounds. In this study, we used high-throughput non-targeted metabolomics to profile changes in 2,269 putative metabolites induced by 1,520 drugs in A549 lung cancer cells. Although only 26% of the drugs inhibited cell growth, 86% caused intracellular metabolic changes, which were largely conserved in two additional cancer cell lines.
View Article and Find Full Text PDFLupus and inflammatory bowel disease share a common set of microbiome features distinct from other autoimmune disorders.
Ann Rheum Dis
January 2025
Meinig School of Biomedical Engineering, Cornell University, Ithaca, New York, USA. Electronic address:
Objectives: This study aims to elucidate the microbial signatures associated with autoimmune diseases, particularly systemic lupus erythematosus (SLE) and inflammatory bowel disease (IBD), compared with colorectal cancer (CRC), to identify unique biomarkers and shared microbial mechanisms that could inform specific treatment protocols.
Methods: We analysed metagenomic datasets from patient cohorts with six autoimmune conditions-SLE, IBD, multiple sclerosis, myasthenia gravis, Graves' disease and ankylosing spondylitis-contrasting these with CRC metagenomes to delineate disease-specific microbial profiles. The study focused on identifying predictive biomarkers from species profiles and functional genes, integrating protein-protein interaction analyses to explore effector-like proteins and their targets in key signalling pathways.
Reduction of Low-Density Lipoprotein Cholesterol by Mesenchymal Stem Cells in a Mouse Model of Exogenous Cushing's Syndrome.
Tissue Eng Regen Med
January 2025
Department of Pediatrics, College of Medicine, Ewha Womans University, Seoul, 07804, South Korea.
Background: Exogenous Cushing's syndrome, which results from prolonged glucocorticoid treatment, is associated with metabolic abnormalities. Previously, we reported the inhibitory effect of tonsil-derived mesenchymal stem cell conditioned medium (T-MSC CM) on glucocorticoid signal transduction. In this study, we investigated the therapeutic efficacy of T-MSCs in a mouse model of exogenous Cushing's syndrome.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!