Front. Cardiovasc. Med.Frontiers in Cardiovascular MedicineFront. Cardiovasc. Med.2297-055XFrontiers Media S.A.10.3389/fcvm.2025.1625299Cardiovascular MedicineReviewThe role of gut microbiota in myocardial ischemia-reperfusion injuryChenXin123†YeLu4†ZouXin5†ZhouYuan6PengChan7*HuangRui123*Cardiovascular Disease Center, The Central Hospital of Enshi Tujia and Miao Autonomous Prefecture, Enshi, Hubei, ChinaHubei Selenium and Human Health Institute, The Central Hospital of Enshi Tujia and Miao Autonomous Prefecture, Enshi, Hubei, ChinaHubei Provincial Key Lab of Selenium Resources and Bio Applications, Enshi, Hubei, ChinaCardiovascular Disease Center, The Central Hospital of Enshi Tujia and Miao Autonomous Prefecture, Hubei Minzu University, Enshi, Hubei, ChinaDepartment of Nephrology and Endocrinology, The Lichuan Ethnic Hospital of Traditional Chinese Medicine, Lichuan, Hubei, ChinaDepartment of Nephrology and Endocrinology, The People’s Hospital of Lichuan City, Lichuan, Hubei, ChinaDepartment of Pediatrics, The Third People’s Hospital of Yichang, Yichang, Hubei, China
Edited by:Mateusz Szudzik, Medical University of Warsaw, Poland
Reviewed by:Yuting Cui, Affiliated Hospital of Nanjing University of Chinese Medicine, China
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Myocardial ischemia-reperfusion injury denotes the pathological damage resulting from the restoration of blood flow and oxygen supply following acute coronary artery occlusion. Myocardial ischemia-reperfusion injury is commonly seen in acute coronary syndromes and is an important factor in the development of ischemic cardiomyopathy, which severely affects the prognosis of coronary heart disease. The gut microbiota, a complex ecosystem with multifaceted functions, plays a crucial role in host health. Dysregulation of the gut microbiota exerts substantial effects on the onset and progression of cardiovascular diseases, including myocardial ischemia-reperfusion injury. This review elucidates the mechanisms underlying myocardial ischemia-reperfusion injury and the involvement of the gut microbiota in this process, encompassing aspects such as intestinal barrier integrity, microbial dysbiosis, inflammatory responses, oxidative stress, mitochondrial dysfunction, and metabolic alterations. Additionally, we investigate various interventions that modulate myocardial ischemia-reperfusion injury by influencing the gut microbiota. Maintaining a healthy intestinal barrier and a stable microbial ecology is paramount in preventing myocardial ischemia-reperfusion injury. High-fiber diets, probiotic consumption, short-chain fatty acids supplementation, and Traditional Chinese Medicine, can safeguard the heart against myocardial ischemia-reperfusion injury by regulating gut microbiota through diverse mechanisms. As the role of gut microbiota in myocardial ischemia-reperfusion injury continues to be investigated, it provides important therapeutic targets and drug development opportunities for the prevention and treatment of myocardial ischemia-reperfusion injury. However, further in-depth and comprehensive studies are required to fully realize these potentials.
gut microbiotamyocardial ischemiareperfusion injuryinflammationgut metabolites82360085National Natural Science Foundation of ChinaTechnical Support Initiative for the “Special Sailing” Program of the Enshi Prefecture Science and Technology Bureausection-at-acceptanceCardiovascular MetabolismIntroduction
Myocardial ischemia/reperfusion (I/R) typically occurs in myocardial ischemia induced by acute coronary artery occlusion. Ischemic myocardium can be salvaged by reperfusion of the coronary arteries via percutaneous coronary intervention (PCI), coronary artery bypass grafting (CABG) or thrombolytic therapy. Nevertheless, myocardial reperfusion may subsequently exacerbate and accelerate myocardial injury, known as myocardial ischemia-reperfusion injury (MIRI) (1). MIRI can mediate adverse remodeling of the myocardium, cardiac dysfunction, and arrhythmia, which can progress to ischemic heart disease, further deteriorating the heart and influencing the prognosis and lifespan of the patient (2).
The severity of MIRI is dependent on the duration of ischemia, the extent of the ischemic area, the reperfusion blood flow, oxygen content, and other risk factors (3). The mechanism of MIRI is complex and diverse, involving various biological processes such as different types of cell death, autophagy, inflammation, oxidative stress, mitochondrial damage, energy metabolism disorders, and ion homeostasis disorders (4, 5). The research on the mechanism and treatment of MIRI is increasing annually. Recent studies have discovered that the gut microbiome is closely associated with MIRI (6, 7), but the mechanisms and interactions have not been fully clarified.
The gut microbiota represents the most abundant symbiotic microbial community within the human body, exerting significant influence on both human health and the progression of various diseases. It plays a critical and multifaceted role in immune regulation and metabolic homeostasis, contributing to essential physiological processes such as gene expression, substance metabolism, anti-inflammation, gastrointestinal hormone regulation, and mental health maintenance (8–10). The physical and immune barriers of the intestine can be altered by the gut microbiota, creating opportunities for interaction between the intestine and other systems and organs. Concurrently, the gut microbiota is capable of producing a diverse array of metabolic products that play essential regulatory roles in maintaining the host's health and physiological homeostasis (11, 12). Substantial evidence currently demonstrates that the gut microbiota plays an important role in diseases such as cardiovascular disease, renal disease, neurological disease, diabetes, obesity, and sepsis (13–17).
The composition and biological activity of the gut microbiota are influenced by genetic and environmental factors, such as infection, diet, stress, and antibiotic use, leading to gut microbiota dysbiosis (18, 19). Gut microbiota dysbiosis is closely linked to a wide range of gastrointestinal, metabolic, neurological, and inflammatory disordersp. The gut-heart axis represents an emerging area in cardiovascular research. This bidirectional communication system underscores the complex and dynamic interactions between the gastrointestinal tract and the cardiovascular system, which are mediated through multiple signaling pathways involving microbial metabolites, immune modulation, inflammatory processes, and neurohumoral mechanisms (13, 20). Recent studies have implicated the gut microbiota in the pathogenesis and prognosis of heart failure, myocardial fibrosis, myocardial infarction, and arrhythmia (21–24). However, the precise role of gut microbiota in MIRI remains incompletely understood. This review aims to elucidate the intricate relationship between gut microbiota and MIRI.
Mechanisms of myocardial ischemia-reperfusion injury
MIRI is an inevitable pathological process characterized by a complex underlying mechanism. Multiple forms of cell death are among the primary drivers of MIRI (Table 1). Early studies have demonstrated that apoptosis is the first form of cell death observed in MIRI. Upon myocardial reperfusion, the sudden reintroduction of oxygen leads to a substantial increase in intracellular reactive oxygen species (ROS), which triggers cardiomyocyte apoptosis (4). Subsequent research has identified additional modes of cell death involved in MIRI, including ferroptosis, pyroptosis, and necroptosis (41–43). Under conditions of coronary artery ischemia and reperfusion, iron levels rise sharply, contributing to myocardial dysfunction, which is primarily attributed to the excessive generation of free radicals (44). Lipid peroxidation serves as a hallmark of ferroptosis, while iron overload functions as a significant inducer of this process (41). Pyroptosis is an inflammatory form of cell death (42), whereas necroptosis is characterized by the phosphorylation of receptor-interacting serine/threonine-protein kinase 3 (43). These cell deaths adversely affect both short-term and long-term cardiac remodeling function after myocardial I/R (45).
Interventions affecting MIRI through modulation of gut microbiota function.
Zhang et al. (39); Cui et al. (40); Bai et al. (7)
Another crucial factor implicated in MIRI is the inflammatory response (1). Prior research has demonstrated that although inflammation is triggered during myocardial ischemia, the restoration of blood flow and oxygenation results in the generation of substantial ROS by cardiomyocytes and the release of key inflammatory mediators, such as interleukins, neutrophils, and inflammasomes, which are pivotal in initiating and sustaining the inflammatory phase of MIRI (46–48). Additionally, macrophages and circulating leukocytes also contribute to this inflammatory response (49). The NLR family pyrin domain containing 3 (NLRP3) inflammasome serves as a critical link between chronic inflammation and the inflammatory process in MIRI (50).
Mitochondrial dysfunction and oxidative stress are intricately linked to the pathogenesis of MIRI. Normal mitochondrial function is essential for maintaining cellular homeostasis and ensuring cell survival (51). During myocardial ischemia, the deficiency of oxygen and nutrients leads to the accumulation of lactate and ROS. Upon reperfusion, mitochondria produce excessive ROS, which results in intracellular calcium overload and the activation of apoptotic protein activities, ultimately causing mitochondrial swelling and apoptosis. Excessive ROS can also induce structural damage to cellular proteins, lipids, and deoxyribonucleic acid (DNA), leading to a loss of cellular function and cell death (52–54). Furthermore, ROS can activate pro-inflammatory signaling pathways, triggering the release of cytokines, chemokines, and adhesion molecules, thereby exacerbating inflammation. Damaged cells may also secrete pro-inflammatory factors such as Tumor necrosis factor-α (TNF-α) and Lnterleukin-1β (IL-1β), further increasing ROS production (55). Meanwhile, maintaining an optimal cellular autophagy state is essential for preserving cardiac homeostasis. During the myocardial reperfusion phase, excessive autophagic activity may lead to the degradation of normal organelles and mitochondria, resulting in myocardial cell injury and potentially cell death (56). These complex interactions culminate in sustained and irreversible tissue damage.
Gut microbiota and myocardial ischemia-reperfusionIntestinal barrier and gut microbiota ecology
The human gut microbiota constitutes a complex ecosystem. As research into this area deepens, the physiological functions and roles of the gut microbiota within the body have been progressively elucidated (57). An increasing number of studies have highlighted the significant role of the gut microbiota in cardiovascular diseases (58). The Disruption of the intestinal barrier can lead to dysbiosis of the microbiota, and at the same time, metabolites are released into the bloodstream, activating inflammatory responses. Disruption of gut microbiota can contribute to atherosclerosis, and participate in the pathogenesis of coronary heart disease, myocardial infarction and heart failure (22, 59). Additionally, it has been shown to have a detrimental impact on myocardial fibrosis (21).
The disruption of the intestinal barrier can lead to dysbiosis of the microbiota, and at the same time, metabolites are released into the bloodstream, activating inflammatory responses.
These impacts are mediated through multiple mechanisms, such as the inflammatory response triggered by compromised intestinal barrier function, metabolites produced by the gut microbiota, and the dysbiosis induced by exogenous antibiotics (60). Liu Q et al. (61) demonstrated that irisin can mitigate MIRI by alleviating intestinal dysbiosis, endothelial dysfunction, and exerting anti-inflammatory effects. Some studies have found that gossypin treatment in isoproterenol (ISO)—induced rat MIRI model can prevent the disruption of the gut microbiota and alter its richness and diversity to protect against MIRI (62). In summary, the disruption of the intestinal barrier and the dysregulation of the gut microbial ecosystem can initiate inflammatory responses and lead to the production of harmful metabolites, which may enter the systemic circulation and contribute to the exacerbation of MIRI.
Inflammation
Under normal conditions, the intestinal epithelium and immune cells function as a protective barrier for the gastrointestinal tract (63). The gut microbiota plays a crucial role in host immune regulation, with its metabolites modulating the activity of immune cells and the production of proinflammatory cytokines (64). However, under conditions such as inflammation, stress, and aging, the intestinal barrier may become more permeable and functionally impaired, leading to microbial translocation and the release of metabolic toxins into the systemic circulation (65). Following myocardial I/R, gut microbiota and harmful metabolites can translocate into the bloodstream, stimulating the recruitment of neutrophils, which can directly impact cardiomyocytes and induce apoptosis (66).
Previous studies have demonstrated that lipopolysaccharide (LPS) derived from gram-negative bacilli can enter the systemic circulation when the intestinal barrier is disrupted. Once in circulation, LPS triggers the activation of pathogen-associated molecular patterns (PAMPs), leading to the expression and secretion of cellular inflammatory mediators, which can result in myocardial damage (67). TNF-α has been identified as a key initiator of cardiomyocyte apoptosis and is known to upregulate the expression of endothelial cell adhesion molecules, including intercellular adhesion molecule-1 (ICAM-1) and vascular cell adhesion molecule-1 (VCAM-1). Inhibiting VCAM-1 and ICAM-1 has been shown to reduce neutrophil infiltration and mitigate LPS-induced cardiac injury (68). After the invasion of the gut microbiota by pathogenic bacteria, the integrity of the intestinal barrier is compromised, leading to the release of pro-inflammatory cytokines such as TNF-α and IL-1β, ultimately contributing to myocardial injury (69). Zhang Y et al. (39) reported that a flavin mononucleotide (FMN) with anti-inflammatory properties could suppress inflammation and reduce no-reflow phenomena following myocardial I/R by enhancing the abundance of anti-inflammatory bacteria within the gut microbiota. Dysbiosis of the gut microbiota and the subsequent secretion of harmful metabolites can directly promote the production of neutrophils and activate inflammatory cytokines, leading to myocardial damage and exacerbating MIRI. During the occurrence of MIRI, enhancing the anti-inflammatory capacity of the gut microbiota may help suppress the inflammatory response and alleviate the extent of MIRI.
Mitochondrial dysfunction and oxidative stress
Oxidative stress, disruption of mitochondrial dynamics, and dysregulation of calcium (Ca2+) handling are the key factors contributing to MIRI. Studies have demonstrated that an imbalance in gut Microbiota can result in mitochondrial dysfunction and the activation of oxidative stress. The interplay between gut Microbiota and the host's intestinal epithelial surface can trigger signaling pathways associated with oxidative stress and inflammatory responses (70). Additionally, intestinal pathogens are capable of inducing mitochondrial dysfunction and autophagy in myocardial cells, which may contribute to myocardial dysfunction (71). Recent research has indicated that certain mitochondria-targeted drugs can mitigate MIRI by decreasing succinate accumulation during ischemia, inhibiting succinate oxidation upon reperfusion, reducing ROS mage, preserving Ca2+ homeostasis, and modulating mitochondrial dynamics and quality control (58, 72). Cheng G et al. revealed that Gossypin exerts protective effects against cardiac injury induced by MIRI through the modulation of oxidative stress, inflammation, and gut microbiota (62).
Trimethylamine N-oxide (TMAO)
The gut microbiota plays a crucial role in various host metabolic processes and generates diverse metabolites. The gut microbiota catabolizes choline to produce TMAO, a metabolite identified as a risk factor for metabolic, cardiovascular, and cerebrovascular diseases (73, 74). An imbalance in the gut microbiota can result in elevated synthesis of TMAO, which can alter cholesterol and bile acid metabolism and activate inflammatory pathways (75). Elevated TMAO levels have been associated with the progression of atherosclerosis and an increased incidence of adverse cardiovascular events (76). Reducing TMAO levels can mitigate inflammation by decreasing the level of interleukin-8 (IL-8) and prevent heart failure following myocardial infarction (77). Wang L et al. (6) demonstrated that dapagliflozin reduces TMAO levels, a metabolite generated by the gut microbiota, thereby alleviating ferroptosis in cardiomyocytes post-I/R. Gut metabolites, like TMAO, once released into the bloodstream, can trigger inflammation. During the process of I/R, they can exacerbate atherosclerosis and lead to ferroptosis of cardiomyocytes.
Short chain fatty acids
Short-chain fatty acids (SCFAs) are metabolites generated by the gut microbiota through nutrient metabolism, which exert significant effects on the host's immune system and overall health. The primary SCFAs include acetate, propionate, and butyrate (78). Acetate has been shown to downregulate the expression of early growth response protein 1 in both the heart and kidney, thereby mitigating inflammation and reducing cardiac and renal fibrosis (26). Additionally, acetate can modulate sympathetic nerve activity, leading to a reduction in blood pressure and heart rate, thus providing cardioprotective benefits (79). The gut microbiota inhibit the histone deacetylase (HDAC) mediated by butyrate by synthesizing SCFAs, thereby reducing the transcriptional activity of the NF-κB pathway and decreasing the inflammatory response. Butyrate can also increase cardiac contractility and reduce arterial tension to enhance cardiac output, enhance the activity of superoxide dismutase-1 in the heart, improve cardiac function and prevent myocardial fibrosis (80, 81). A review by Wang×et al. elucidates the crucial role of SCFAs in mitigating MIRI through their anti-inflammatory and metabolic regulatory functions (82).
Treatments
Modifying the function of gut microbiota has emerged as a significant approach in the prevention and treatment of various diseases. Various modalities have been found to play a protective role in cardiovascular disease by influencing the gut microbiota, including diet, antibiotics, probiotics, fatty acids, traditional Chinese medicine (TCM), and others (Figure 1).
The impact of gut microbiota dysbiosis on MIRI. Dysbiosis contributes to increased TMA and LPS, impairing intestinal barriers. This results in elevated TMAO, oxidative stress, mitochondrial dysfunction, apoptosis, and ferroptosis ultimately affecting MIRI. High fiber, SCFA, probiotics, FMN, and TCM mitigate dysbiosis effects. Arrows indicate promotion or inhibition pathways. SCFA, Short-chain fatty acids; FMN, flavin mononucleotide; TMA, trimethylamine; LPS, lipopolysaccharide; IL-1β, lnterleukin-1β; TNF-α, tumor necrosis factor-α; NLRP3, NLR family pyrin domain containing 3; ROS, reactive oxygen species; TMAO, trimethylamine N-oxide.
Diagram illustrating the impact of gut microbiota dysbiosis on intestinal and cardiac functions. Dysbiosis contributes to increased TMA and LPS, impairing intestinal barriers. This results in elevated TMAO, oxidative stress, mitochondrial dysfunction, apoptosis, and ferroptosis, ultimately affecting heart health (MIRI). High fiber, SCFA, probiotics, and FMN mitigate dysbiosis effects, while drugs exacerbate them. Arrows indicate promotion or inhibition pathways.Intact gut barrier and balanced microbiota ecosystem
Preserving the integrity of the intestinal barrier and mitigating the ecological disruption of the gut microbiota are crucial for preventing organ and tissue damage resulting from microbial dysbiosis (83). It has been shown that the invasion of pathogenic bacteria can compromise intestinal barrier function, trigger an inflammatory response, and promote the secretion of inflammatory mediators and toxic metabolites, thereby damaging cardiac tissue (58). Intestinal disorders and the inappropriate use of antibiotics can contribute to intestinal barrier dysfunction and microbial dysbiosis (84). Studies have indicated that early antibiotic exposure in infants can disrupt the composition and development of the gut microbiota, potentially influencing body weight and cardiovascular risk throughout life (85). Previous studies have shown that Irisin can alleviate MIRI by reducing gut microbiota imbalance, endothelial dysfunction and anti-inflammatory effects (61). Preserving the integrity of the intestinal barrier and maintaining the ecological balance of the gut microbiota have a significant preventive effect on MIRI.
Metabolic regulation treatment
Metabolites derived from gut microbiota exert significant influence across various systems and diseases. The gut microbiota metabolite phenylacetylglycine was found to inhibit MIRI-induced cardiomyocyte apoptosis and reduce myocardial infarct size, suggesting a novel therapeutic approach for myocardial infarction patients (29). The compound dapagliflozin has been shown to lower TMAO levels, a metabolite generated by intestinal microorganisms, and consequently modulate associated target genes to alleviate ferroptosis in cardiomyocytes (6). Urolithin B is one of the intestinal metabolites with antioxidant capacity. Urolithin B was found to protect against MIRI by inhibiting autophagy and oxidative stress, reducing the size of myocardial infarction, and attenuating cardiac dysfunction in cardiomyocytes via the P62/keap1/NRF2 signaling pathway (30). Indole-3-acetic acid (IAA), which is derived from intestinal microbiota, can protect cardiomyocytes against ferroptosis following myocardial I/R (86). Du et al. (87) have conducted research which has determined that flavobacterium and its metabolite DAT possess a variety of cardioprotective properties. These have been shown to be effective in counteracting MIRI and have the potential to serve as a preventative treatment option for alleviating MIRI. In summary, recent research has demonstrated that certain metabolites of the gut microbiota can contribute to the mitigation of MIRI, either as a prophylactic measure or as a therapeutic intervention.
Dietary treatment
Diet can affect human health by altering the gut microbiota. Adherence to the Mediterranean diet has been shown to potentially mitigate the incidence of metabolic syndrome and cardiovascular diseases through its anti-inflammatory and antioxidant properties (25). Consumption of a high-fiber diet leads to an increase in the gut microbiota, which plays a protective role in the development of cardiovascular disease by increasing the production of short-chain fatty acid acetates (88). Research indicates that both high-fiber diets and acetate supplementation can alter the gut microbiota in hypertensive mice, thereby preventing the progression of hypertension and heart failure. Conversely, a low-fiber diet may elevate the risk of hypertension due to a deficiency in SCFAs (26, 27). Trinei M et al. (28). demonstrated that intermittent consumption of a diet rich in cyanidin-3-glucoside can exert a protective effect against MIRI by modulating the gut microbiome.
Probiotic treatment
Probiotics are capable of maintaining the ecological balance of the gut microbiota, enhancing metabolic processes, modulating immune responses, and contributing to overall human health. They hold a significant position in the prevention and management of cardiovascular diseases (31). Lactobacillus can protect the MIRI by inhibiting several processes including, but not limited to, apoptosis, inflammation, oxidative stress and ferroptosis (89). It has been shown that the prophylactic oral administration of Lactobacillus reuteri or its metabolite GABA can mitigate myocardial inflammation mediated by macrophages, thus alleviating MIRI (32). Additionally, Bifidobacterium infantis or its metabolite inosine can exert cardioprotective effects during myocardial I/R by suppressing cardiac inflammation and reducing myocardial cell apoptosis (33). Studies have also revealed that the application of lyophilized S. boulardii and inactivated probiotic Lactobacillus reuteri markedly decreased the myocardial infarct size caused by I/R injury (34). Bulut EC et al. (35). reported that the supplementation of prebiotics and probiotics, alongside a standard diet or a high-fat, high-carbohydrate diet, improved intestinal ecological imbalance, lowered CK-MB and cTnI levels, and mitigated MIRI in hyperglycemic rats.
Short chain fatty acids treatment
SCFAs, as one of the metabolites of the gut, have been shown to play an important role in the regulation of cardiac function (90). Prior research has indicated that supplementation with acetate, propionate, and butyrate markedly decreased cardiac fibrosis in GPCR (-) mice (36). Studies have also shown that oral administration of butyrate in rats can protect the heart by inhibiting the sympathetic nervous system, thereby reversing the autonomic imbalance caused by myocardial I/R (37). Furthermore, Deng F et al. (38). reported that propionic acid can mitigate CAV-1/ACE2—mediated Ang II-induced MIRI via GPR41, offering a novel therapeutic approach for treating MIRI through the regulation of gut microbiota. The oral administration of engineered probiotics, capable of continuous secretion of short-chain fatty acids, has been demonstrated to be an effective preventative measure against MIRI (91). The role of fatty acids in modulating gut microbiota offers a novel direction for the treatment of MIRI.
Traditional Chinese medicine treatment
The protective role of TCM in cardiovascular disease has been extensively investigated. Chinese patent medicine, Chinese herb medicine, CM monomer, acupuncture, moxibustion and other treatment methods have shown obvious therapeutic advantages. Currently, certain traditional medications and therapies have demonstrated the ability to mitigate MIRI through the regulation of gut microbiota (92). Research has indicated that FMN, a phytoestrogen belonging to the isoflavone family, can effectively modulate gut microbiota, enhance host metabolism, and reduce cardiac inflammation by inhibiting the ROS-TXNIP-NLRP3 pathway, thereby alleviating MIRI in rats (39). Cui Y et al. (40). discovered that Simiao Yongan decoction, a compound of four Chinese herbs, can ameliorate MIRI in rats by regulating gut microbiota and safeguarding the intestinal barrier, thus reducing the translocation of LPS and inflammatory mediators. There were also studies using electroacupuncture (EA) to intervene in rats with MIRI, and the results showed that the EA intervention could ultimately play a cardioprotective role by improving the damage to the intestinal mucosal barrier, reducing the production of intestinal LPS, and inhibiting myocardial inflammation (7).
Conclusions
The investigation into the mechanisms, preventive measures, and therapeutic strategies for MIRI remains a significant challenge. The gut microbiota plays various roles in a variety of diseases and has been shown to be closely related to MIRI. In-depth study of the role of the gut microbiota in MIRI is anticipated to enhance our comprehension of myocardial I/R, identify novel prevention and therapeutic targets, and facilitate the development of innovative therapeutic agents. Dysbiosis of the gut microbiota can contribute to the pathogenesis of MIRI and influence its prognosis through mechanisms such as compromising intestinal barrier integrity, stimulating inflammatory, inducing oxidative stress, impairing mitochondrial function, and metabolizing harmful substances. Maintaining normal intestinal barrier function and gut microbiota ecology is one of the important factors to avoid MIRI. High-fiber diet, probiotic consumption, SCFAs supplementation and TCM have demonstrated potential in alleviating MIRI by modulating gut microbial functions, and they have potential preventive and therapeutic effects. however, these preventive and therapeutic strategies cannot be applied to clinical practice because most of the current studies are limited to animal studies and single factors. Consequently, in-depth animal studies, large sample sequencing analyses, and multicenter clinical trials on gut microbiota and MIRI have become increasingly important.
The author(s) declare that financial support was received for the research and/or publication of this article. This work was funded by the National Natural Science Foundation of China (No. 82360085), the 2024 Technical Support Initiative for the “Special Sailing” Program of the Enshi Prefecture Science and Technology Bureau.
Conflict of interest
The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.
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