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Readable research linked to original sources
Browse normalized, publication-ready research with direct links to its evidence and source.
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Readable research linked to original sources
Browse normalized, publication-ready research with direct links to its evidence and source.
193 articles
Newest firstBackground and hypothesis A sex difference in the clinical presentation of schizophrenia is well known. Males have on average an earlier symptom onset, worse functional capacity, and more negative symptoms. Studies on the neurobiological correlates of psychosis show that brain endocannabinoid system (ECS) is dysregulated in male patients with first-episode psychosis (FEP). We now evaluated whether the brain ECS is…
Open article record in new tab ↗Background CBD is widely studied for its stress-reduction and cognitive-enhancing properties, but its effects on hippocampal molecular organisation under physiological settings are unknown. Acute and long-term intraperitoneal CBD treatment at different doses was tested on hippocampus gene expression, circulating corticosterone, and behavioural performance in C57BL/6J mice. Results Short-term administration did not…
Open article record in new tab ↗Background and objective Lafora disease (LD) is a rare progressive disorder caused by mutations in the EPM2A or EPM2B genes, characterized by the accumulation of Lafora bodies, drug-resistant epilepsy, and cognitive decline. To investigate the early molecular mechanisms of LD, we studied electrophysiological changes in the dentate gyrus (DG) of the Epm2aR240X knock-in mouse model at various ages. Methods Electroph…
Object recognition memory (ORM) plays a key role in identifying familiar items and encoding episodic information. ORM consolidation depends on β-adrenergic receptor (βAR) signaling and is associated with increased BDNF expression in the dorsal hippocampus. Although hippocampal activation of cannabinoid type-1 receptors (CB1Rs) is known to impair ORM consolidation, the mechanisms underlying this effect remain uncle…
Several studies show that neurosteroids currently play a significant role in autism spectrum disorders (ASD). However, the pathway of neurosteroid synthesis involved in ASD remains unclear. This study aimed to investigate the crosstalk between autism and neurosteroids, focusing on the mechanism of allopregnanolone production. We used the BTBR T+ tf/J (BTBR) mouse, a well-established animal model of ASD that exhibi…
Background Alzheimer's disease (AD) remains the most prevalent cause of dementia, yet no existing treatment effectively prevents its onset. Current therapies primarily aim to slow disease progression or manage symptoms, leaving a critical gap in preventive strategies. Recent findings suggest that ultra-low-dose tetrahydrocannabinol (ULD-THC) may exert neuroprotective effects without the adverse consequences associ…
Background Navigation and memory are hippocampal functions that are essential for survival. One of the key modulators of hippocampal activity is the endocannabinoid system through the cannabinoid receptor type 1 (CB1). CB1 is widely expressed in various types of hippocampal cells. While it is known that CB1 participates in memory processes, its specific roles in different cell types and differences between sexes r…
BACKGROUND: The endocannabinoid system is closely associated with systemic and cellular energy metabolism in mammals. We previously demonstrated that the cannabinoid receptors CB1 and CB2 play important roles in cerebral glucose metabolism. GPR55, a paracannabinoid receptor, has been implicated in systemic metabolic regulation and in diseases such as intractable epilepsy, diabetes, and cancer. In the present study…
Open article record in new tab ↗Background Previous studies have suggested that adenosinergic system in the central nervous system may play a role in both behavioral changes and the physiopathology induced by Δ9-tetrahydrocannabinol (THC), and this is thought to be mediated by adenosine A2A receptors (A2ARs). However, the contribution of the adenosinergic system to the anxiety-like behaviors in response to THC in mice is not well understood. Aim…
Organophosphate pesticides (OPPs) are widely used in agriculture and are associated with metabolic dysregulation and cognitive impairment. Emerging evidence links OPP exposure to insulin resistance and diabetes mellitus, a condition known to negatively impact brain function. Prior investigations in our laboratory identified significant dysregulation of arachidonic acid (AA) metabolites associated with the endocann…
Down syndrome is the most common genetic neurodevelopmental disorder associated with mild-to-moderate intellectual disability. A disturbed excitation-inhibition balance is thought to be a major cause for the intellectual deficits in DS. In this study, we used patch-clamp electrophysiology, optogenetic stimulation and immunohistochemistry to investigate synaptic inhibition from specific interneuron subpopulations o…
Open article record in new tab ↗Background Naringin, a flavanone glycoside (naringenin 7-O-neohesperidose), exhibits a broad range of pharmacological activities, including neuroprotection. However, its effects on autistic-like behavior have not been extensively studied. Methods In this investigation, we utilized the autistic BTBR T + tf/J (BTBR) mice to conduct behavioral tests assessing autistic-like phenotypes. We evaluated hippocampal neuroge…
Open article record in new tab ↗The role of the endocannabinoid system (ECS) in major depressive disorder (MDD) is under-investigated despite reports of increased activity and/or concentration of fatty acid amide hydrolase (FAAH), a key ECS enzyme, in fronto-limbic brain regions in some animal models of depressive behavior. We hypothesized that [11C]CURB λk3, an index of FAAH density, would be elevated in the prefrontal cortex, hippocampus, and…
The expanding legalization of cannabis raises significant public health concerns about its use during pregnancy, particularly due to the limited understanding of its impact on neurodevelopment. Existing research suggests that perinatal cannabis or cannabinoid exposure may impair learning and memory; however, variations in study design hinder the ability to draw generalizable conclusions. Clinical studies are limit…
Open article record in new tab ↗Synaptic plasticity is the key mechanism underlying learning and memory. Neurexins are pre-synaptic molecules that play a pivotal role in synaptic plasticity, interacting with many different post-synaptic molecules in the formation of neural circuits. Neurexins are alternatively spliced at different splice sites, yielding thousands of isoforms with different properties of interaction with post-synaptic molecules f…
Extra-cerebral manifestations of Alzheimer's disease (AD) develop in the retina, which is, therefore, considered a "window to the brain". Recent studies demonstrated the dysregulation of the endocannabinoid (eCB) system (ECS) in AD brain. Here, we explored the possible alterations of ECS and the onset of gliosis in the retina of AD-like mice. Tg2576 (TG) mice overexpressing the amyloid precursor protein (APP) were…
The brain's endocannabinoid signaling system modulates a diverse range of physiological phenomena and is also involved in various psychiatric and neurological disorders. The basic components of the molecular machinery underlying endocannabinoid-mediated synaptic signaling have been known for decades. However, limitations associated with the short-lived nature of endocannabinoid lipid signals had made it challengin…
Open article record in new tab ↗Neurogenesis is considered the most robust form of plasticity in the adult brain. To better decipher this process, we evaluated the potential crosstalk of Kisspeptin and Endocannabinoid Systems (KPS and ECS, respectively) on hippocampal neurogenesis. Male adolescent rats were exposed to kisspeptin-10 (KP10) and the endocannabinoid anandamide (AEA) administered alone or in combination with the type 1 cannabinoid re…
The cannabinoid 1-receptor (CB1R) is found in particularly high levels in the hippocampus (HPC). Increased CB1R density and binding are observed in patients with schizophrenia, and epidemiological studies suggest that regular cannabis use during adolescence is a risk factor for the disease. CB1R was shown to interfere with neuronal network oscillations and to impair sensory gating and memory function. Neuronal osc…
Background The hippocampus plays a critical role in memory and decision-making processes, with its resting-state functional connectivity (rsFC) linked to various behavioral outcomes. This study investigates whether baseline brain-wide rsFC of the hippocampus mediates the relationship between impulsivity and subsequent substance use, specifically tobacco and marijuana use, in adolescents. Methods Data were drawn fr…
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