A potential role of gut microbiota in stroke: mechanisms, therapeutic strategies and future prospective
Neurological conditions like Stroke and Alzheimer's disease (AD) often include inflammatory responses in the nervous system. Stroke, linked to high disability and mortality rates, poses challenges related to organ-related complications. Recent focus on understanding the pathophysiology of ischemic stroke includes aspects like cellular excitotoxicity, oxidative stress, cell death mechanisms, and neuroinflammation.
Obtusin ameliorates diabetic retinopathy by inhibiting oxidative stress and inflammation
Diabetic retinopathy (DR) is linked to an increased risk of psychiatric and neurological conditions, largely due to chronic inflammation, oxidative stress, and microvascular damage associated with the disease. Emerging evidence suggests that Cassia seed extract has significant anti-inflammatory and antioxidant properties. However, the therapeutic potential of obtusin, a major compound in Cassia seed, and its underlying mechanisms remain unclear.
Corticotropin releasing hormone receptor 1 in the medial prefrontal cortex mediates aversion resistant alcohol intake
Alcohol consumption despite negative consequences is a core symptom of Alcohol Use Disorder. In animal models, this is studied by pairing aversive stimuli with alcohol access, and continuation of drinking under these conditions is known as aversion resistance. Previously, we found that female mice are more aversion resistant than males. Corticotropin releasing hormone (Crh) and the Crh receptor 1 (Crhr1) regulate stress-induced reinstatement, alcohol dependence, and binge-like drinking. However, the role of the Crh system in aversion resistance has not been assessed.
Efficacy of Nigella sativa seed oil against psychophysical stress induced irritable bowel syndrome and anxiety-like symptoms in Wistar rats
Stressors play a critical role in the progression of irritable bowel syndrome (IBS). Heterogenous stress causes alterations in our bowel movements which can further cause anxiety and depression-like symptoms, decreasing the ability of individuals worldwide to function in social, academic, and employment settings.
The impact of voluntary wheel-running exercise on hippocampal neurogenesis and behaviours in response to nicotine cessation in rats
The literature indicates that nicotine exposure or its discontinuation impair adult hippocampal neurogenesis in rats, though the impact of exercise on this process remains unclear. We have previously shown that disturbances in the number of doublecortin (DCX, a marker of immature neurons)-positive (DCX) cells in the dentate gyrus (DG) of the hippocampus during nicotine deprivation may contribute to a depression-like state in rats.
TSPO activation ameliorates maternal immune activation induced PV interneuron deficits via BDNF/TrkB signaling
Prenatal maternal immune activation (MIA) is an etiological risk factor for schizophrenia in offspring. Recently, parvalbumin (PV) positive interneuron deficits has been considered a critical pathology of many psych-cognitive disorders. Nevertheless, whether and how prenatal MIA affected PV interneuron in offspring remains largely unknown.
The effects of caffeine mouth rinsing on selective attention as a function of different caffeine concentrations and perceived taste intensity in recreationally active males at rest: a randomized placebo-controlled cross-over trial
The effect of caffeine mouth rinsing (CAF-MR) on cognitive performance has not been thoroughly investigated.
Multimodal examination of daily stress rhythms in chronic Cannabis users
Chronic cannabis users frequently report stress relief as their primary reason for use. The endocannabinoid system is involved in the neuroendocrine stress response, and diurnal cortisol rhythms may be disrupted in chronic cannabis users.
Depression-like effects induced by chronic unpredictable mild stress in mice are rapidly reversed by a partial negative allosteric modulator of mGlu receptor, M-5MPEP
Due to the numerous limitations of ketamine as a rapid-acting antidepressant drug (RAAD), research is still being conducted to find an effective and safe alternative to this drug. Recent studies indicate that the partial mGlu receptor negative allosteric modulator (NAM), 2-(2-(3-methoxyphenyl)ethynyl)-5-methylpyridine (M-5MPEP), has therapeutic potential as an antidepressant.
Behavioral studies of the abuse potential and anesthetic and sedative effects of etomidate in male rodents
Etomidate is a short-acting general anesthetic for clinical use and has been used as alternative to propofol or added to the powdered drug and e-cigarette cartridges recently, leading to an increase in abuse. But there have been no studies conducted on the abuse potential of etomidate.
Endocannabinoid dysregulation and PTSD in urban adolescents: Associations with anandamide concentrations and FAAH genotype
The endocannabinoid system, which regulates fear- and anxiety-related behaviors, is dysregulated in adults with posttraumatic stress disorder (PTSD), as indicated by higher circulating anandamide (AEA) concentrations. The C385A (rs324420) polymorphism in the fatty acid amide hydrolase (FAAH) gene, which catabolizes AEA, is linked to higher AEA concentrations and greater PTSD symptoms in adults. Given that adolescence is a critical period during which trauma and psychiatric disorders emerge, understanding this relationship in youth is essential. This study examines PTSD symptoms, AEA concentrations, and FAAH genotype in a diverse adolescent sample.
Efficacy and safety of prophylactic use of benzhexol after risperidone treatment in MK-801-induced mouse model of schizophrenia
There is a debate about whether doctors should prophylactically use benzhexol in schizophrenic patients to reduce the occurrence of extrapyramidal side effects (EPS) after risperidone treatment.
The effect of mixed tobacco monoamine oxidase inhibitors in animal models relevant to tobacco dependence
Tobacco monoamine oxidase (MAO) inhibitors have long been suspected of influencing tobacco dependence, but direct evidence of their effects has been difficult to obtain. Recently we have identified two new groups of monoamine oxidase inhibitors, hydroquinones and polyunsaturated fatty acids (linoleic and linolenic acid), abundant in tobacco smoke.
Interactions of pain and opioids on conditioned place preference in rodents
Opioid analgesics are the most effective medications used for the treatment of pain, however there are significant risks associated with repeated opioid use including opioid misuse and opioid use disorder development. Chronic pain affects millions of adults in the United States, and opioid misuse is often comorbid with pain conditions in individuals who are repeatedly treated with opioids. In addition to providing pain relief, opioids produce rewarding effects, but in chronic pain states, reward processing can become dysregulated. The conditioned place preference task is commonly used to measure the rewarding properties of opioids in rodents. During this task, opioid administration is paired with a distinct environment through repeated conditioning and the change in an animal's preference for the paired environment indicates whether the opioid is rewarding or not.
Characterization of the nicotine uptake and safety of Nordic spirit tobacco-free oral nicotine pouches: A randomized cross-over study
Given the nascency of tobacco-free oral nicotine pouches (NPs) and the heterogeneity of commercially available NP brands, there is a need for scientific evaluation of different NP formulations. Nordic Spirit, novel NPs are distinguished by their unique composition.
Ketamine differentially affects implicit and explicit memory processes in rats
Ketamine, a non-competitive NMDA receptor antagonist, produces antidepressant effects at subanesthetic doses. The therapeutic effect, however, is often accompanied by cognitive side effects, including memory impairments. Yet, the specific effects of ketamine on different processes of implicit and explicit memory remain to be elucidated.
Exploring the efficacy of cholinergic agents for the treatment of psychostimulant use disorder: a systematic review
No drugs are currently validated to treat psychostimulant use disorder (PUD). Pathophysiological studies consistently highlight the contribution of cholinergic mechanisms in psychostimulant use, including the vulnerability to PUD, paving the way for potential therapeutic strategies.
Delineating anticipatory arousal from reward consumption: evaluating fixed-intervals in cocaine seeking-taking response chains
Anticipation is a critical antecedent to drug use, in which the prospect of imminent drug availability can potently motivate instrumental actions directed to procure it. Models that capture the behavioral dynamics that precede drug access may allow for the dissociation of key neural mechanisms underlying appetitive or consummatory processes in drug self-administration.
Glia dysfunction in schizophrenia: evidence of possible therapeutic effects of nervonic acid in a preclinical model
Neuroinflammation may inhibit oligodendrocyte and astrocyte differentiation, which causes demyelination and synaptic degeneration. The myelin component nervonic acid (NA) may improve demyelinating and neurodegenerative diseases.
Ferulic acid ameliorates bisphenol A (BPA)-induced Alzheimer's disease-like pathology through Akt-ERK crosstalk pathway in male rats
This study investigated the neuroprotective effect of ferulic acid (FA) against bisphenol A (BPA) induced Alzheimer's disease-like pathology in male rats.
Curcumin alleviates arsenic trioxide-induced neural damage in the murine striatal region
Arsenic-induced neurotoxicity, with dose-dependent effects, is well-documented in rodents. Curcumin (CUR), a cost-effective plant polyphenol, shows neuroprotective effects by modulating oxidative stress, apoptosis, and neurochemistry. This study evaluates curcumin's neuroprotective potential against arsenic trioxide (AsO) in the mouse striatal region.