Transcutaneous auricular vagus nerve stimulation might reduce fear memory in fear-conditioned mice through an anti-neuroinflammatory mechanism DOI Creative Commons
Yingjie Du, Yue Zhang,

Yafan Bai

et al.

Chinese Medical Journal, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 5, 2024

To the Editor: Posttraumatic stress disorder (PTSD), a severe psychiatric post-trauma, is closely linked to fear memory.[1] Current treatments like selective serotonin reuptake inhibitors have limited effectiveness and side effects, necessitating new non-invasive approaches. PTSD often co-occurs with depression, both are connected inflammatory system disruptions, increased proinflammatory cytokines in patients.[2,3] Transcutaneous auricular vagus nerve stimulation (taVNS) shows promise for treating depression by reducing neuroinflammation.[4] taVNS combines traditional Chinese medicine acupuncture neuroanatomy, targeting branch of influence brain regions thalamus hippocampus. This study hypothesizes that may reduce memory among fear-conditioned mice through modulation responses. We utilized fear-conditioning mouse model evaluate impact on freezing behavior quantify markers, including corticosterone, interleukin-10 (IL-10) interleukin-1β (IL-1β), within serum regions. In this study, effects were tested. Twelve-week-old C57BL/6J provided Beijing SPF Biotechnology Co., Ltd., Beijing, China. All animal experiments approved Ethics Committee Animal Experiments Tongren Hospital, Capital Medical University (No. TRLAWEC2024-25). For detailed experimental methods, refer Supplementary File, https://links.lww.com/CM9/C239. The was examined, divided randomly into control groups [Figure 1A]. Initial times equivalent across Context A (the 1st conditioned stimulus [CS]; Figure 1B), no statistically significant differences time observed during final CS 10th CS; 1C), suggesting similar levels. However, significantly reduced after two 1D]. Auditory-cued also diminished compared controls 5th 7th days B 1E, F]. Depression-like behaviors assessed using open field test (OFT) treatment 3rd day. Locomotor activity accounted for, showing difference total distance traveled 1G]. Yet, 1H] 1I] central zone, indicating depression-like behaviors.Figure 1: effect improve neuroinflammation mice. (A) flowchart. (B) baseline percentage CS) between (n = 18). (C) conditioning comparable (D) After treatments, induced contextual decreased (E, F) B, group shorter than (G) There OFT (H, I) spent traveling zone (J, K) concentration corticosterone anti-inflammatory factor IL-10 12). (L) level IL-1β 8). (M, N) hypothalamus (O, P) hippocampus data shown as mean ± SEM; unpaired Student's t-test, * P <0.05, † <0.01, ‡ <0.001 vs. group. CS: Conditioned stimulus; IL-1β: Interleukin-1β; IL-10: Interleukin-10; ns: Not significant; OFT: Open test; SEM: Standard error mean; taVNS: stimulation; US: Unconditioned stimulus.Enzyme-linked immunosorbent assays (ELISAs) measured levels IL-1β, systemic response. while decreasing 1J–L]. Given hypothalamus's role hypothalamic–pituitary–adrenal (HPA) axis, inflammation assessed. 1M, N], inflammation. Neuroinflammation hippocampus, relevant PTSD, enhanced levels, 1O,P]. pioneering explores mice, hypothesizing potential anti-neuroinflammatory mechanism. Our results show auditory-cued memory. reflected an OFT, reduction without affecting motor activity. Serum analysis revealed IL-10, following taVNS, Consistent this, exhibited pointing neuroinflammatory modulation. utilizes model, crucial research, employing tests post treatments. ruled out locomotor activity, confirming its specific While previous clinical studies indicated PTSD,[5] conducted explore mechanisms, might offer antidepressant hypothalamus. nerve's believed regulate immune thereby influencing supporting properties. findings encourage further investigation. Though promising, need larger trials deeper research essential establish modulating PTSD's complexity, multifaceted approach psychotherapy pharmacotherapy benefit from addition methods taVNS. conclusion, our showed at least part Furthermore, worth studying other mental disorders characterized Funding work supported grants priming scientific foundation junior researcher 2023-YJJ-ZZL-018), National Natural Science Foundation China 82270411), Hospitals Authority's Ascent Plan DFL20220203), Capital's Funds Health Improvement Research CFH2024-2-2058). Conflicts interest None.

Language: Английский

Neuroinflammation and Post-Stroke Depression: Focus on the Microglia and Astrocytes DOI Creative Commons

Weizhuo Lu,

Jiyue Wen

Aging and Disease, Journal Year: 2024, Volume and Issue: unknown, P. 0 - 0

Published: Jan. 1, 2024

Post-stroke depression (PSD), a frequent and disabling complication of stroke, has strong impact on almost thirty percent stroke survivors. The pathogenesis PSD is not completely clear so far. Neuroinflammation following one underlying mechanisms that involves in the pathophysiology plays an important function development regarded as sign depression. During neuroinflammation after ischemic onset, both astrocytes microglia undergo series morphological functional changes play pro-inflammatory or anti-inflammatory effect pathological process stroke. Importantly, exert dual roles due to phenotypic transformation. We summarize latest evidence involving this review, focus transformation reveal via modulating neuroinflammation.

Language: Английский

Citations

14

Alzheimer’s Disease: Models and Molecular Mechanisms Informing Disease and Treatments DOI Creative Commons

Kaden Nystuen,

Shannon M. McNamee,

Monica Akula

et al.

Bioengineering, Journal Year: 2024, Volume and Issue: 11(1), P. 45 - 45

Published: Jan. 1, 2024

Alzheimer’s Disease (AD) is a complex neurodegenerative disease resulting in progressive loss of memory, language and motor abilities caused by cortical hippocampal degeneration. This review captures the landscape understanding AD pathology, diagnostics, current therapies. Two major mechanisms direct pathology: (1) accumulation amyloid β (Aβ) plaque (2) tau-derived neurofibrillary tangles (NFT). The most common variants Aβ pathway APP, PSEN1, PSEN2 are largely responsible for early-onset (EOAD), while MAPT, APOE, TREM2 ABCA7 have modifying effect on late-onset (LOAD). More recent studies implicate chaperone proteins degrading AD. Several tests, such as cognitive function, brain imaging, cerebral spinal fluid (CSF) blood used diagnosis. Additionally, several biomarkers seem to unique specific combination expression could potentially be improved, less invasive diagnostics. In addition genetic perturbations, environmental influences, altered gut microbiome signatures, affect Effective treatments been challenging develop. Currently, there FDA approved drugs (cholinesterase inhibitors, Aß-targeting antibodies an NMDA antagonist) that mitigate rate decline symptoms distress.

Language: Английский

Citations

13

Understanding the Biological Relationship between Migraine and Depression DOI Creative Commons
Adrián Viudez‐Martínez,

Abraham B. Torregrosa,

Francisco Navarrete

et al.

Biomolecules, Journal Year: 2024, Volume and Issue: 14(2), P. 163 - 163

Published: Jan. 30, 2024

Migraine is a highly prevalent neurological disorder. Among the risk factors identified, psychiatric comorbidities, such as depression, seem to play an important role in its onset and clinical course. Patients with migraine are 2.5 times more likely develop depressive disorder; this becomes even higher patients suffering from chronic or aura. This relationship bidirectional, since depression also predicts earlier/worse of migraine, increasing chronicity and, consequently, requiring healthcare expenditure compared alone. All these data suggest that may share overlapping biological mechanisms. Herein, review explores topic further detail: firstly, by introducing common epidemiological for comorbidity; secondly, focusing on providing cumulative evidence aspects, particular emphasis serotoninergic system, neuropeptides calcitonin-gene-related peptide (CGRP), pituitary adenylate cyclase-activating polypeptide (PACAP), substance P, neuropeptide Y orexins, sexual hormones, immune system; lastly, remarking future challenges required elucidate etiopathological mechanisms updated information regarding new key targets pharmacological treatment entities.

Language: Английский

Citations

9

IL-8 (CXCL8) Correlations with Psychoneuroimmunological Processes and Neuropsychiatric Conditions DOI Open Access

Anton Shkundin,

Angelos Halaris

Journal of Personalized Medicine, Journal Year: 2024, Volume and Issue: 14(5), P. 488 - 488

Published: May 3, 2024

Interleukin-8 (IL-8/CXCL8), an essential CXC chemokine, significantly influences psychoneuroimmunological processes and affects neurological psychiatric health. It exerts a profound effect on immune cell activation brain function, suggesting potential roles in both neuroprotection neuroinflammation. IL-8 production is stimulated by several factors, including reactive oxygen species (ROS) known to promote inflammation disease progression. Additionally, CXCL8 gene polymorphisms can alter production, leading differences susceptibility, progression, severity across populations. levels vary among neuropsychiatric conditions, demonstrating sensitivity psychosocial stressors severity. be detected blood circulation, cerebrospinal fluid (CSF), urine, making it promising candidate for broad-spectrum biomarker. This review highlights the need further research diverse effects of associated implications personalized medicine. A thorough understanding its complex role could lead development more effective treatment strategies conditions.

Language: Английский

Citations

7

Post Traumatic Stress Disorder associated Hypothalamic-Pituitary-Adrenal Axis Dysregulation and Physical Illness DOI Creative Commons

Stephanie Lawrence,

R. Hal Scofield

Brain Behavior & Immunity - Health, Journal Year: 2024, Volume and Issue: 41, P. 100849 - 100849

Published: Aug. 23, 2024

Language: Английский

Citations

7

Evaluation of Inflammatory Response System (IRS) and Compensatory Immune Response System (CIRS) in Adolescent Major Depression DOI Creative Commons
Nikola Ferencová, Zuzana Višňovcová, Igor Ondrejka

et al.

Journal of Inflammation Research, Journal Year: 2022, Volume and Issue: Volume 15, P. 5959 - 5976

Published: Oct. 1, 2022

Nowadays, the role of two tightly interconnected systems, inflammatory response system (IRS) and compensatory immune (CIRS) in depression, is increasingly discussed. Various studies indicate pro-inflammatory activity adolescent depression; however, there an almost complete lack findings about IRS CIRS balance. Thus, we aimed to assess different indices, profiles, IRS/CIRS ratios drug-naïve MDD patients at age, with respect sex.One hundred adolescents (40 boys, average age: 15.4±1.2 yrs.) 60 controls (28 15.3±1.5 were examined. Evaluated parameters 1. plasma levels interleukin (IL)-1α, IL-1β, IL-2, IL-4, IL-6, IL-8, IL-10, interferon gamma, tumor necrosis factor alpha (TNF-α), soluble receptor IL-6 (sIL-6R), receptors TNF-α (sTNF-R1, sTNF-R2); 2. profiles: trans-signaling, M1 macrophage signaling, helper T lymphocytes (Th) 1 profile, regulatory (Treg)+Th2, allIRS, allCIRS; 3. vs ratios: TNF-α/TNF-R1, TNF-α/TNF-R2, TNF-α/sTNF-Rs (ie sTNF-R1+sTNF-R2), Th1/Th2, Th1/Treg, Th1/Th2+Treg, M1/Th2, M1/Treg, M1/Treg+Th2, allIRS/allCIRS.MDD showed increased TNF-α, sIL-6R, Treg+Th2, allCIRS, TNF-α/sTNF-Rs, decreased Th1/Th2+Treg. females IL-10 compared control females. males TNF-α/TNF-R1 males. Increased sTNF-R1 was found Positive correlations between CDI score sIL-6R total group males.Our study for first time extensively evaluated interactions revealing enhanced signaling trans-signaling association IL-10- IL-4-mediated anti-inflammatory first-episode depression age. Moreover, results reflect sex-specific simultaneous activation pathways depression.

Language: Английский

Citations

23

Mechanisms associated with post-stroke depression and pharmacologic therapy DOI Creative Commons

Qingyang Zhan,

Fanyi Kong

Frontiers in Neurology, Journal Year: 2023, Volume and Issue: 14

Published: Nov. 2, 2023

Stroke is one of the most common cerebrovascular diseases, which cause long-term mental illness and physical disability, Post-stroke depression (PSD) neuropsychiatric complication after stroke, its mechanisms are characterized by complexity, plurality, diversity, seriously affects quality survival prognosis patients. Studies have focused on recognized neurotransmitter-based selective serotonin-reuptake inhibitors (SSRIs) can be used to treat PSD. Neuroinflammation, neuroendocrinology, neurotrophic factors, site stroke lesion may affect neurotransmitters. Thus PSD been increasingly studied. Pharmacological treatment mainly includes SSRIs, noradrenergic specific serotonergic antidepressant (NaSSA), anti-inflammatory drugs, vitamin D, ect, confirmed better efficacy clinical studies. Currently, there an increasing number studies related However, pharmacologic still unclear. In future, in-depth research needed provide a reference for prevention

Language: Английский

Citations

13

The role of IL‐1β during human immunodeficiency virus type 1 infection DOI
Mahmoud Mohammad Yaseen,

Nizar Mohammad Abuharfeil,

Homa Darmani

et al.

Reviews in Medical Virology, Journal Year: 2022, Volume and Issue: 33(1)

Published: Oct. 9, 2022

Abstract Interleukin (IL)‐1β is a key innate cytokine that essential for immune activation and promoting the inflammatory process. However, abnormal elevation in IL‐1β levels has been associated with unwanted clinical outcomes. most extensively studied among IL‐1 family of cytokines its role pathology well established. During course human immunodeficiency virus type 1 (HIV‐1) infection, level this proinflammatory increased different anatomical compartments, particularly lymphatic tissues, disease progression. The aim review to address pathological roles play by light enhancing HIV‐1 replication, driving cell depletion, chronic activation. transmission (sexually or vertically ‘from mother‐to‐child’) will also be discussed. Additionally, impact available antiretroviral therapy regimens on treated patients Finally, we provide glance how could targeted as therapeutic strategy.

Language: Английский

Citations

22

Advancing Post-Stroke Depression Research: Insights from Murine Models and Behavioral Analyses DOI Creative Commons
Mădălina Iuliana Mușat, Bogdan Cătălin, Michael Hadjiargyrou

et al.

Life, Journal Year: 2024, Volume and Issue: 14(9), P. 1110 - 1110

Published: Sept. 3, 2024

Post-stroke depression (PSD) represents a significant neuropsychiatric complication that affects between 39% and 52% of stroke survivors, leading to impaired recovery, decreased quality life, increased mortality. This comprehensive review synthesizes our current knowledge PSD, encompassing its epidemiology, risk factors, underlying neurochemical mechanisms, the existing tools for preclinical investigation, including animal models behavioral analyses. Despite high prevalence severe impact challenges persist in accurately modeling complex symptomatology settings, underscoring need robust valid better understand treat PSD. also highlights multidimensional nature where both biological psychosocial factors interplay influence onset course. Further, we examine efficacy limitations mimicking human PSD condition, along with tests used evaluate depressive-like behaviors rodents. sets new precedent by integrating latest findings across multidisciplinary studies, thereby offering unique perspective knowledge. Finally, development more sophisticated closely replicate clinical features is crucial order advance translational research facilitate discovery future effective therapies.

Language: Английский

Citations

4

Psychedelics in neuroinflammation: Mechanisms and therapeutic potential DOI

Júnia L. de Deus,

Juliana Marino Maia, Renato Nery Soriano

et al.

Progress in Neuro-Psychopharmacology and Biological Psychiatry, Journal Year: 2025, Volume and Issue: unknown, P. 111278 - 111278

Published: Jan. 1, 2025

Language: Английский

Citations

0