GABA(B) receptors are the cornerstone receptors in the modulation of inhibitory signalling in the central nervous system and continue to be targets for the amelioration of a number of neuropsychiatric and neurological disorders. Unravelling the molecular identity of this receptor has spurred much research over the past five or so years and generated a renewed interest and excitement in the field. Many questions are being answered and lessons learnt, not only about GABA(B) receptor function but also about general mechanisms of G-protein-coupled receptor signalling. However, as questions are being answered as many new questions are being raised and many GABA(B)-related conundrums continue to remain unanswered. In this report, we review some of the most recent work in the area of GABA(B) receptor research. In particular, we focus our attentions on the emerging mechanisms thought to be important in GABA(B) receptor signalling and the growing complex of associated proteins that we consider to be part of the GABA(B) receptor "signalosome."
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http://dx.doi.org/10.1016/j.bcp.2004.06.036 | DOI Listing |
J Physiol Sci
January 2025
Department of Molecular Oral Physiology, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto, 770-8504, Tokushima, Japan. Electronic address:
The balance of activity between glutamatergic and GABAergic networks is particularly important for oscillatory neural activities in the brain. Here, we investigated the roles of GABA receptors in network oscillation in the oral somatosensory cortex (OSC), focusing on NMDA receptors. Neural oscillation at the frequency of 8-10 Hz was elicited in rat brain slices after caffeine application.
View Article and Find Full Text PDFBrain Res Bull
January 2025
Department of Traumatic Orthopedics, The Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou, China. Electronic address:
Cerebrospinal fluid-contacting neurons (CSF-cNs) exhibit neural stem cell (NSC) properties both in vitro and in vivo, and they may play a critical role in recovery after spinal cord injury (SCI). GABA receptors (GABABRs) are expressed in Pkd2l1 CSF-cNs. However, their role in Pkd2l1 CSF-cNs still needs to be discovered.
View Article and Find Full Text PDFMol Biol Rep
January 2025
College of Life Sciences, Liaoning Normal University, Dalian, Liaoning, 116029, China.
Background: High temperature is a critical environmental factor leading to mass mortality in oyster aquaculture in China. Recent advancements highlight the physiological regulation function of γ-aminobutyric acid (GABA) in the adaptation of environmental stress.
Methods And Results: This study examined the physiological responses of the Pacific oyster (Crassostrea gigas) upon high temperature exposure, focusing on the histopathological changes in gill, the GABA concentration, the mRNA expression and activities of apoptosis-related genes.
J Neurosci
January 2025
Laboratory on Neurobiology of Compulsive Behaviors, National Institute on Alcohol Abuse and Alcoholism, NIH, Bethesda, MD, 20892. USA.
Dopamine critically regulates neuronal excitability and promotes synaptic plasticity in the striatum, thereby shaping network connectivity and influencing behavior. These functions establish dopamine as a key neuromodulator, whose release properties have been well-studied in rodents but remain understudied in nonhuman primates. This study aims to close this gap by investigating the properties of dopamine release in macaque striatum and comparing/contrasting them to better-characterized mouse striatum, using ex vivo brain slices from male and female animals.
View Article and Find Full Text PDFDrug Res (Stuttg)
January 2025
Department of Physiology, School of Medicine, Arak University of Medical Sciences, Arak, Iran.
Tolerance to the antinociceptive effects of opioids is a major concern. Studies have shown that chronic use of non-steroidal anti-inflammatory (NSAIDs) causes significant tolerance and cross-tolerance to morphine. Chronic NSAIDs use can increase the risk of certain diseases, such as peptic ulcers, and exacerbate others, like heart failure.
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