Background: Alcohol use disorders (AUDs) are associated with altered regulation of physiological processes in the brain. Acetate, a metabolite of ethanol, has been implicated in several processes that are disrupted in AUDs including transcriptional regulation, metabolism, inflammation, and neurotransmission. To further understand the effects of acetate on brain function in AUDs, we investigated the effects of acetate on cerebral blood flow (CBF), systemic inflammatory cytokines, and behavior in AUD.
Methods: Sixteen participants with AUD were recruited from a nonmedical, clinically managed detoxification center. Each participant received acetate and placebo in a randomly assigned order of infusion and underwent 3T MR scanning using quantitative pseudo-continuous arterial spin labeling. Participants and the study team were blinded to the infusion. CBF values (ml/100 g/min) extracted from thalamus were compared between placebo and acetate using a mixed effect linear regression model accounting for infusion order. Voxel-wise CBF comparisons were set at threshold of p < 0.05 cluster-corrected for multiple comparisons, voxel-level p < 0.0001. Plasma cytokine levels and behavior were also assessed between infusions.
Results: Fifteen men and 1 woman were enrolled with Alcohol Use Disorders Identification Test (AUDIT) scores between 13 and 38 with a mean of 28.3 ± 9.1. Compared to placebo, acetate administration increased CBF in the thalamus bilaterally (Left: 51.2 vs. 68.8, p < 0.001; Right: 53.7 vs. 69.6, p = 0.001), as well as the cerebellum, brainstem, and cortex. Older age and higher AUDIT scores were associated with increases in acetate-induced thalamic blood flow. Cytokine levels and behavioral measures did not differ between placebo and acetate infusions.
Conclusions: This pilot study in AUD suggests that during the first week of abstinence from alcohol, the brain's response to acetate differs by brain region and this response may be associated with the severity of alcohol dependence.
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http://dx.doi.org/10.1111/acer.14588 | DOI Listing |
J Immunother
December 2024
Department of Rehabilitation Medicine, The First People's Hospital of Wenling, Wenling, China.
Lung adenocarcinoma (LUAD) is a widespread and deadly form of cancer. Prostaglandin 15-deoxy-Δ-12,14-prostaglandin J2 (15d-PGJ2) possesses antioxidant, anti-inflammatory, and anticancer properties. However, it is unclear whether this effect on LUAD progression stems from its ability to influence macrophage polarization.
View Article and Find Full Text PDFFuture Microbiol
December 2024
Department of Pharmacy, Pharmaceutical Biology Laboratory, Universidade Estadual de Maringá, Maringá, Brazil.
Objectives: To evaluate the antifungal activity of extracts and compounds from against clinically relevant species, notably , and investigate possible mechanisms of action using electron microscopy and techniques.
Methods: Extracts and fractions of were obtained through turboextraction and partitioning, while the isolated compounds were previously purified. The ethyl acetate fraction (EAF) was characterized by HPLC.
Hippocampus
January 2025
Sechenov Institute of Evolutionary Physiology and Biochemistry, The Russian Academy of Sciences, Saint Petersburg, Russia.
Accumulating evidence indicates that inherited astrocyte dysfunction can be a primary trigger for epilepsy development; however, the available data are rather limited. In addition, astrocytes are considered as a perspective target for the design of novel and improvement of the existing antiepileptic therapy. Piracetam and related nootropic drugs are widely used in the therapy of various epileptic disorders, but detailed mechanisms of racetams action and, in particular, their effects on glial functions are poorly understood.
View Article and Find Full Text PDFEur J Med Res
December 2024
Department of Gastrointestinal Surgery, Shandong Provincial Hospital, Shandong University, Jinan, 250021, Shandong, China.
The gut microbiota is a complex and dynamic ecosystem that plays a crucial role in human health and disease, including obesity, diabetes, cardiovascular diseases, neurodegenerative diseases, inflammatory bowel disease, and cancer. Chronic inflammation is a common feature of these diseases and is closely related to angiogenesis (the process of forming new blood vessels), which is often dysregulated in pathological conditions. Inflammation potentially acts as a central mediator.
View Article and Find Full Text PDFBMC Oral Health
December 2024
School of Dentistry, The University of Queensland, Brisbane, Australia.
Background: This randomized clinical trial aimed to evaluate the effect of intracanal cryotherapy with 2-4 °C normal saline irrigation on post-operative pain after single-visit non-surgical root canal retreatment.
Methods: Forty-six single-rooted, single-canal teeth requiring non-surgical root canal retreatment were randomly assigned to two groups (n = 23): a cryotherapy group and a control group. All the treatments were completed during a single visit.
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