Results 71 to 80 of about 171,068 (287)

An assay for beta-adrenergic receptors in isolated human fat cells.

open access: yesJournal of Lipid Research, 1982
The beta-adrenergic receptors have been characterized in isolated human adipocytes using a potent beta-adrenergic antagonist (-)-[3H]dihydroalprenolol.
P Engfeldt   +3 more
doaj   +1 more source

A receptor-based analysis of local ecosystems in the human brain. [PDF]

open access: yes, 2017
BackgroundAs a complex system, the brain is a self-organizing entity that depends on local interactions among cells. Its regions (anatomically defined nuclei and areas) can be conceptualized as cellular ecosystems, but the similarity of their functional ...
Janušonis, Skirmantas
core   +1 more source

Adenylosuccinate Synthase 1 Deficiency Improves Energy Metabolism by Promoting Adipose Tissue Re‐esterification via Glycerol Kinase Upregulation

open access: yesAdvanced Science, EarlyView.
Working model of Adss1‐mediated regulation of energy metabolism in adipose tissue. In beige adipocytes, Adss1 interacts with HDAC3 in the cytoplasm, and its loss reduces nuclear HDAC3 while increasing cytosolic fractions. This redistribution suppresses HDAC activity and enhances H3K27 acetylation at the Gk promoter, leading to transcriptional ...
Jingjing Sun   +16 more
wiley   +1 more source

α1B-adrenergic receptors differentially associate with Rab proteins during homologous and heterologous desensitization. [PDF]

open access: yesPLoS ONE, 2015
Internalization of G protein-coupled receptors can be triggered by agonists or by other stimuli. The process begins within seconds of cell activation and contributes to receptor desensitization.
Jean A Castillo-Badillo   +5 more
doaj   +1 more source

Regulation of Neuromodulator Receptor Efficacy - Implications for Whole-Neuron and Synaptic Plasticity [PDF]

open access: yes, 2004
Membrane receptors for neuromodulators (NM) are highly regulated in their distribution and efficacy - a phenomenon which influences the individual cell's response to central signals of NM release.
Scheler, Gabriele
core   +1 more source

CARD9 Conveys Pancreatic Islet Sympathetic Nervous β2 Signals to Reshape Macrophage Creatine Metabolism in Type 1 Diabetes

open access: yesAdvanced Science, EarlyView.
This study identifies CARD9 as a key mediator linking sympathetic β2‐adrenergic receptor signaling to macrophage creatine metabolism, inflammatory polarization, and neuronal integrity. Loss of β2‐AR‐PKA‐CREB1‐CARD9 signaling in macrophages reduces creatine uptake, promotes pro‐inflammatory macrophage activation, and drives sympathetic axon ferroptosis.
Huimin Yuan   +12 more
wiley   +1 more source

The DMHGABA Neurons Play a Crucial Role in The Regulation of Cold‐Induced White Adipose Browning through DMH to LPO Projection

open access: yesAdvanced Science, EarlyView.
GABAergic neurons in the dorsomedial hypothalamus (DMHGABA neurons) act as a key neuronal population controlling cold exposure‐induced white adipose tissue browning. DMHGABA neurons regulate the browning through DMH to the lateral preoptic area (LPO) projection.
Zhijie Su   +14 more
wiley   +1 more source

Preponderance of alpha 2- over beta 1-adrenergic receptor sites in human fat cells is not predictive of the lipolytic effect of physiological catecholamines

open access: yesJournal of Lipid Research, 1983
Adrenergic control of human fat cell lipolysis is mediated by two kinds of receptor sites that are simultaneously stimulated by physiological amines. To establish a correlation between the binding characteristics of the receptor and biological functions,
M Lafontan, M Berlan, A Villeneuve
doaj   +1 more source

Cannabinoid Receptor Involvement in Stress-Induced Cocaine Reinstatement: Potential Interaction with Noradrenergic Pathways [PDF]

open access: yes, 2012
This study examined the role of endocannabinoid signaling in stress-induced reinstatement of cocaine seeking and explored the interaction between noradrenergic and endocannabinergic systems in the process.
Hillard, Cecilia J.   +6 more
core   +2 more sources

Exclusive Breastfeeding Drives AMPK‐Dependent Thermogenic Memory in BAT and Promotes Long‐Term Metabolic Benefits in Offspring

open access: yesAdvanced Science, EarlyView.
Exclusive breastfeeding establishes a thermogenic memory in brown adipose tissue by activating the HIF1AN/AMPK/α‐ketoglutarate axis via milk‐derived extracellular vesicles enriched in miR‐125a‐5p. This programming preserves metabolic health, while αKG supplementation restores BAT function under mixed feeding, offering strategies to mitigate the ...
Ningxi Wu   +13 more
wiley   +1 more source

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