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Review article: modulation of the brain-gut axis as a therapeutic approach in gastrointestinal disease.

BACKGROUND: The importance of bi-directional brain-gut interactions in gastrointestinal illness is increasingly being recognized, most promi … l evidence, several novel compounds that selectively target receptors at multiple levels within the brain-gut axis such as neurokinin, somatostatin and corticotropin-releasing factor receptor antagonists are promising. CONCLUSIONS: This review discusses the rationale for modulation of the brain-gut axis in the treatment of functional gastrointestinal disorders …

Neuroendocrinology of gastric H+ and duodenal HCO3- secretion: the role of brain-gut axis.

Gastric H+ and duodenal HCO3- secretions are precisely regulated by neuro-hormonal mechanisms at central and peripheral levels to match the … es are triggered as well as various gut hormones are released by feeding that "cooperate" with the "brain-gut axis" in the alteration of exocrine and endocrine gastro-duodenal secretion, motility and blood circulation. The malfunction of gastric or duodenal secretory mechanisms may lead to disturbances of gastric H+-pepsin or duodenal mucus-HCO3- secretion and t …

Gut-Brain-Jaw Axis: The Emerging Role of Gut Microbiota in Temporomandibular Disorders and Orofacial Pain-A Narrative Review.

BACKGROUND: Temporomandibular disorders (TMDs) and chronic orofacial pain are multifactorial conditions influenced by complex neurobiological and systemic mechanisms. Recent findings emphasise the gut-brain axis as a central modulator of pain, neuroinflammation, and immune signalling. Nevertheless, the role of the gut microbiota in TMD pathogenesis and oral rehabilitation remains insufficiently characterised. METHODS: A structured literature search was conducted in PubMed/MEDLINE, Scopus, and Web of Science up to December 2024 using combinations of keywords including "gut microbiota," "tempor

Модуляция микробиотики Гут по пребиотикам, пробиотикам и психобиотикам и ее воздействие на ось гута микробиота - мозг: систематический обзор.

Ось кишечника - это высокоинтегрированная двунаправленная коммуникационная сеть, функционирующая через нейронные, нейроэндокринные, иммунные и метаболические пути, которые поддерживают гомеостаз центральной нервной системы и стали перспективной дополнительной терапевтической целью для неврологических и нейропсихиатрических расстройств. ЦЕЛЬ: Цель настоящего исследования заключается в систематической оценке воздействия предбиотики, пробиотики и психобиотики на коммуникацию кишечника и неврологические и поведенческие результаты, включая нейроинфламматические маркеры, параметры осей ГПА и микробн

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… Database | Search Strategy Scopus | TITLE-ABS-KEY ((“gut microbiota” OR “intestinal microbiome” OR “gut flora” OR “microbiome*”) AND (probiotic* OR prebiotic* OR psychobiotic* OR synbiotic*) AND (“gut-brain axis” OR “brain-gut axis” OR “gut-brain communication” OR neuroendocrin* OR behavior* OR behaviour … “intestinal microbiome”[tiab] OR “gut flora”[tiab] OR “enteric bacteria”[tiab])) AND (“Probiotics”[Mesh] OR “Prebiotics”[Mesh] OR “Synbiotics”[Mesh] OR “probiotic*”[tiab] OR “prebiotic*”[tiab] OR “psychobiotic*”[tiab] OR “synbiotic*”[tiab] OR “dietary fiber*”[tiab]) AND (“Gut-Brain Axis”[Mesh] OR “Brain-Gut …

The relationship between irritable bowel syndrome, the gut microbiome, and obstructive sleep apnea: the role of the gut-brain axis.

Sleep disruption, especially that resulting from obstructive sleep apnea (OSA) - a widely prevalent sleep disorder - can lead to important systemic repercussions. We raise a subject of current interest, namely the possible relationship between sleep in general, OSA, and irritable bowel syndrome (IBS), an intestinal disease that can be made worse by stressful events. The intermittent hypoxia caused by OSA can induce alterations in the gut microbiota, which can lead to the dysregulation of the gut-brain axis and the worsening of IBS. This may be considered to be a circular relationship, with OSA

Unveiling the gut-brain axis: structural and functional analogies between the gut and the choroid plexus vascular and immune barriers.

The vasculature plays an essential role in the development and maintenance of blood-tissue interface homeostasis. Knowledge on the morphological and functional nature of the blood vessels in every single tissue is, however, very poor, but it is becoming clear that each organ is characterized by the presence of endothelial barriers with different properties fundamental for the maintenance of tissue resident immune homeostasis and for the recruitment of blood-trafficking immune cells. The tissue specificity of the vascular unit is dependent on the presence of differentiated endothelial cells tha

The Gut-Brain Axis, Including the Microbiome, Leaky Gut and Bacterial Translocation: Mechanisms and Pathophysiological Role in Alzheimer's Disease.

Alzheimer's disease (AD), the most common form of dementia, is a progressive disorder manifested by gradual memory loss and subsequent impairment in mental and behavioral functions. Though the primary risk factor for AD is advancing age, other factors such as diabetes mellitus, hyperlipidemia, obesity, vascular factors and depression play a role in its pathogenesis. The human gastrointestinal tract has a diverse commensal microbial population, which has bidirectional interactions with the human host that are symbiotic in health, and in addition to nutrition, digestion, plays major roles in inf

Reframing the Gut-Brain Axis: The Gut Wall as a Neural Immune Interface in Multiple Sclerosis and Autoimmune Neurological Diseases.

Gut wall physiology in multiple sclerosis (MS) and autoimmune neurologic diseases remains underexplored. This review examines gut wall dysfunctions' contribution to MS and autoimmune neurological disorder pathogenesis and progression. We discuss 3 inter-related aspects of gut physiology: intestinal barrier, enteric nervous system (ENS), and mucosal immunity. We highlight the ENS as a putative target of immune injury in selected antibody-mediated and T cell-associated neurologic diseases. Finally, we propose a unifying framework in which the gut functions as a site of immune priming and target

Adjusting the composition of gut microbiota prevents the development of post-stroke depression by regulating the gut-brain axis in mice.

Disturbances in gut microbiota contribute to an imbalanced gut-brain axis, which is critical for post-stroke depression (PSD), while the underlying mechanisms remain unclear. The objective of this study was to examine the effects of modifying gut microbiota through antibiotic treatment (ABX) and fecal microbiota transplantation (FMT) on the progression of PSD. The PSD model was established by occluding the middle cerebral artery (MCAO), followed by a four-week isolated housing and restraint stress initiated three days after MCAO. For ABX, the PSD mice received antibiotic water for four weeks.

The role of enteroendocrine cells, hormones, and gut microbiota in anorexia nervosa: a complex interplay of the microbiome-gut-brain axis.

Eating disorders (EDs) have a serious public health concern, especially anorexia nervosa (AN), which includes a variety of mental disorders that are frequently defined by appetite dysregulation. The purpose of this review was to clarify the role of enteroendocrine cells (EECs) and hormones secreted from EECs in the fundamental processes of AN, as well as the participation of intestinal microbiota in creating satiety sensations in the brain through the microbiome-gut-brain axis. In the advancement mechanism of AN, the endocrine system has a critical function, especially in relation to EECs and

Antihypertensive effects of exercise involve reshaping of gut microbiota and improvement of gut-brain axis in spontaneously hypertensive rat.

Exercise (Ex) has long been recognized to produce beneficial effects on hypertension (HTN). This coupled with evidence of gut dysbiosis and an impaired gut-brain axis led us to hypothesize that reshaping of gut microbiota and improvement in impaired gut-brain axis would, in part, be associated with beneficial influence of exercise. Male spontaneously hypertensive rats (SHR) and Wistar Kyoto (WKY) rats were randomized into sedentary, trained, and detrained groups. Trained rats underwent moderate-intensity exercise for 12 weeks, whereas, detrained groups underwent 8 weeks of moderate-intensity e

The Microbiota-Gut-Brain Axis in Light of the Brain Axes and Dysbiosis Where Piezo2 Is the Critical Initiating Player.

The current opinion paper puts into perspective how altered microbiota transplanted from Alzheimer's patients initiates the impairment of the microbiota-gut-brain axis of a healthy recipient, leading to impaired cognition primarily arising from the hippocampus, dysfunctional adult hippocampal neurogenesis, dysregulated systemic inflammation, long-term spatial memory impairment, or chronic pain with hippocampal involvement. This altered microbiota may induce acquired Piezo2 channelopathy on enterochromaffin cells, which, in turn, impairs the ultrafast long-range proton-based oscillatory synchro

Dysregulated brain-gut axis in the setting of traumatic brain injury: review of mechanisms and anti-inflammatory pharmacotherapies.

Traumatic brain injury (TBI) is a chronic and debilitating disease, associated with a high risk of psychiatric and neurodegenerative diseases. Despite significant advancements in improving outcomes, the lack of effective treatments underscore the urgent need for innovative therapeutic strategies. The brain-gut axis has emerged as a crucial bidirectional pathway connecting the brain and the gastrointestinal (GI) system through an intricate network of neuronal, hormonal, and immunological pathways. Four main pathways are primarily implicated in this crosstalk, including the systemic immune syste…

The microbiota-gut-brain-axis theory: role of gut microbiota modulators (GMMs) in gastrointestinal, neurological, and mental health disorders.

The modulation of gut microbiota presents promising therapeutic possibilities for various health conditions, ranging from gastrointestinal infections to neurodegenerative and mental health disorders. Among the available interventions, gut microbiota modulators (GMMs) such as probiotics and prebiotics have demonstrated significant potential in infection prevention and neuroprotection. Despite these encouraging findings, the clinical application of GMMs remains challenging due to safety concerns and inconsistent effectiveness across diverse patient populations. These factors create substantial b

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… Stress-related changes in the gut microbiome are also regulated by miRNAs like miR- 9 and miR- 26b, which affect the brain-gut axis. …

The Impact of Maternal Gut Microbiota during Pregnancy on Fetal Gut-Brain Axis Development and Life-Long Health Outcomes.

Gut microbiota plays a critical role in physiological regulation throughout life and is specifically modified to meet the demands of individual life stages and during pregnancy. Maternal gut microbiota is uniquely adapted to the pregnancy demands of the mother and the developing fetus. Both animal studies in pregnant germ-free rodents and human studies have supported a critical association between the composition of maternal microbiota during pregnancy and fetal development. Gut microbiota may also contribute to the development of the fetal gut-brain axis (GBA), which is increasingly recognize

Polygala oligosaccharide esters improve memory disorder by restoring gut microbiota homeostasis through the regulation of the "gut-brain" axis.

BACKGROUND: Yuanzhi (Polygala tenuifolia Willd.) possesses the effects of calming the spirit, enhancing intelligence, regulating the heart-kidney connection, eliminating phlegm, and reducing swelling. It is commonly used in the treatment of insomnia and forgetfulness. Previous studies have indicated that the oligosaccharide esters (OE) derived from Yuanzhi exhibit neuroprotective and memory-enhancing activities. However, its underlying mechanisms, particularly those involving the gut-brain axis, remain unclear. PURPOSE OF THE RESEARCH: This study aimed to investigate the therapeutic efficacy

Electro-microbial interplay in the gut-brain axis: An emerging paradigm for gut microbiota modulation via vagus nerve stimulation.

The treatment of central nervous system disorders remains a clinical challenge, highlighting an urgent need for innovative therapeutic strategies. The gut-brain axis represents a complex bidirectional communication network between the gastrointestinal tract and the brain, with the vagus nerve serving as a critical pathway for signal transmission. Vagus nerve stimulation (VNS), an established therapy for drug-resistant epilepsy and depression, has been shown to modulate the composition and functional output of gut microbiota, which in turn influences disease progression. Concurrently, gut micro

Microbial SCFAs as epigenetic mediators: fine-tuning the gut-brain axis in neurodegenerative disorders.

The gut-brain axis is a bidirectional communication system linking the gastrointestinal tract and the central nervous system (CNS). Short-chain fatty acids (SCFAs) are microbial metabolites produced through the anaerobic fermentation of dietary fiber. Growing evidence positions SCFAs as critical signaling molecules within this axis, capable of modulating key neurobiological processes relevant to neurodegenerative diseases (NDs), such as Alzheimer's disease (AD) and Parkinson's disease (PD). SCFAs exert neuroprotective effects by mitigating neuroinflammation, promoting neurogenesis, enhancing s

The Brain-Gut-Microbiome Axis: Exploring the Link Between Depression and Irritable Bowel Syndrome.

The brain-gut-microbiome system is an integrated communication network linking the central nervous system, enteric nervous system, immune pathways, and intestinal microbiota. Increasing evidence indicates that dysregulation of this bidirectional signaling system contributes to both gastrointestinal and psychiatric disorders. Irritable bowel syndrome (IBS), a disorder of gut-brain interaction, and major depressive disorder (MDD) frequently coexist and share multiple biological and environmental risk factors. Advances in microbiome science, neuroimaging, and multi-omics technologies have reveale