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Wang P, Wang S, Wang D, Li Y, Yip RCS, Chen H. Postbiotics-peptidoglycan, lipoteichoic acid, exopolysaccharides, surface layer protein and pili proteins-Structure, activity in wounds and their delivery systems. Int J Biol Macromol 2024; 274:133195. [PMID: 38885869 DOI: 10.1016/j.ijbiomac.2024.133195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2024] [Revised: 06/06/2024] [Accepted: 06/13/2024] [Indexed: 06/20/2024]
Abstract
Chronic wound healing is a pressing global public health concern. Abuse and drug resistance of antibiotics are the key problems in the treatment of chronic wounds at present. Postbiotics are a novel promising strategy. Previous studies have reported that postbiotics have a wide range of biological activities including antimicrobial, immunomodulatory, antioxidant and anti-inflammatory abilities. However, several aspects related to these postbiotic activities remain unexplored or poorly known. Therefore, this work aims to outline general aspects and emerging trends in the use of postbiotics for wound healing, such as the production, characterization, biological activities and delivery strategies of postbiotics. In this review, a comprehensive overview of the physiological activities and structures of postbiotic biomolecules that contribute to wound healing is provided, such as peptidoglycan, lipoteichoic acid, bacteriocins, exopolysaccharides, surface layer proteins, pili proteins, and secretory proteins (p40 and p75 proteins). Considering the presence of readily degradable components in postbiotics, potential natural polymer delivery materials and delivery systems are emphasized, followed by the potential applications and commercialization prospects of postbiotics. These findings suggest that the treatment of chronic wounds with postbiotic ingredients will help provide new insights into wound healing and better guidance for the development of postbiotic products.
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Affiliation(s)
- Pu Wang
- Marine College, Shandong University, No. 180 Wen Hua West Road, Gao Strict, Weihai 264209, China.
| | - Shuxin Wang
- Marine College, Shandong University, No. 180 Wen Hua West Road, Gao Strict, Weihai 264209, China.
| | - Donghui Wang
- Marine College, Shandong University, No. 180 Wen Hua West Road, Gao Strict, Weihai 264209, China.
| | - Yuanyuan Li
- Department of Food Science, College of Agriculture and Life Sciences, Cornell University, Stocking Hall, 411 Tower Road, Ithaca, NY 14853, USA.
| | - Ryan Chak Sang Yip
- Department of Cell and Systems Biology, University of Toronto, 25 Harbord St, Toronto, ON M5S 3G5, Canada.
| | - Hao Chen
- Marine College, Shandong University, No. 180 Wen Hua West Road, Gao Strict, Weihai 264209, China.
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Liu M, Peng R, Tian C, Shi J, Ma J, Shi R, Qi X, Zhao R, Guan H. Effects of the gut microbiota and its metabolite short-chain fatty acids on endometriosis. Front Cell Infect Microbiol 2024; 14:1373004. [PMID: 38938880 PMCID: PMC11208329 DOI: 10.3389/fcimb.2024.1373004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Accepted: 05/31/2024] [Indexed: 06/29/2024] Open
Abstract
In recent years, a growing body of research has confirmed that the gut microbiota plays a major role in the maintenance of human health and disease. A gut microbiota imbalance can lead to the development of many diseases, such as pregnancy complications, adverse pregnancy outcomes, polycystic ovary syndrome, endometriosis, and cancer. Short-chain fatty acids are metabolites of specific intestinal bacteria and are crucial for maintaining intestinal homeostasis and regulating metabolism and immunity. Endometriosis is the result of cell proliferation, escape from immune surveillance, and invasive metastasis. There is a strong correlation between the anti-proliferative and anti-inflammatory effects of short-chain fatty acids produced by gut microbes and the development of endometriosis. Given that the mechanism of action of gut microbiota and Short-chain fatty acids in endometriosis remain unclear, this paper aims to provide a comprehensive review of the complex interactions between intestinal flora, short-chain fatty acids and endometriosis. In addition, we explored potential microbial-based treatment strategies for endometriosis, providing new insights into the future development of diagnostic tests and prevention and treatment methods for endometriosis.
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Affiliation(s)
- Menghe Liu
- College of Pharmacy, Inner Mongolia Medical University, Hohhot, Inner Mongolia Autonomous Region, China
| | - Ru Peng
- Department of Obstetrics and Gynecology, Hohhot Maternal and Child Health Care Hospital, Hohhot, Inner Mongolia Autonomous Region, China
| | - Chunfang Tian
- Department of Oncology, Inner Mongolia Traditional Chinese Medicine Hospital, Hohhot, Inner Mongolia Autonomous Region, China
| | - Jianping Shi
- College of Traditional Chinese Medicine, Inner Mongolia Medical University, Hohhot, Inner Mongolia Autonomous Region, China
| | - Jiannan Ma
- College of Pharmacy, Inner Mongolia Medical University, Hohhot, Inner Mongolia Autonomous Region, China
| | - Ruiwen Shi
- College of Pharmacy, Inner Mongolia Medical University, Hohhot, Inner Mongolia Autonomous Region, China
| | - Xiao Qi
- College of Pharmacy, Inner Mongolia Medical University, Hohhot, Inner Mongolia Autonomous Region, China
| | - Rongwei Zhao
- Department of Obstetrics and Gynecology, Affiliated Hospital of Inner Mongolia Medical University, Hohhot, Inner Mongolia Autonomous Region, China
| | - Haibin Guan
- College of Pharmacy, Inner Mongolia Medical University, Hohhot, Inner Mongolia Autonomous Region, China
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Tang Y, Chen L, Yang J, Zhang S, Jin J, Wei Y. Gut microbes improve prognosis of Klebsiella pneumoniae pulmonary infection through the lung-gut axis. Front Cell Infect Microbiol 2024; 14:1392376. [PMID: 38903943 PMCID: PMC11188585 DOI: 10.3389/fcimb.2024.1392376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Accepted: 04/29/2024] [Indexed: 06/22/2024] Open
Abstract
Background The gut microbiota plays a vital role in the development of sepsis and in protecting against pneumonia. Previous studies have demonstrated the existence of the gut-lung axis and the interaction between the gut and the lung, which is related to the prognosis of critically ill patients; however, most of these studies focused on chronic lung diseases and influenza virus infections. The purpose of this study was to investigate the effect of faecal microbiota transplantation (FMT) on Klebsiella pneumoniae-related pulmonary infection via the gut-lung axis and to compare the effects of FMT with those of traditional antibiotics to identify new therapeutic strategies. Methods We divided the mice into six groups: the blank control (PBS), pneumonia-derived sepsis (KP), pneumonia-derived sepsis + antibiotic (KP + PIP), pneumonia-derived sepsis + faecal microbiota transplantation(KP + FMT), antibiotic treatment control (KP+PIP+PBS), and pneumonia-derived sepsis+ antibiotic + faecal microbiota transplantation (KP + PIP + FMT) groups to compare the survival of mice, lung injury, inflammation response, airway barrier function and the intestinal flora, metabolites and drug resistance genes in each group. Results Alterations in specific intestinal flora can occur in the gut of patients with pneumonia-derived sepsis caused by Klebsiella pneumoniae. Compared with those in the faecal microbiota transplantation group, the antibiotic treatment group had lower levels of proinflammatory factors and higher levels of anti-inflammatory factors but less amelioration of lung pathology and improvement of airway epithelial barrier function. Additionally, the increase in opportunistic pathogens and drug resistance-related genes in the gut of mice was accompanied by decreased production of favourable fatty acids such as acetic acid, propionic acid, butyric acid, decanoic acid, and secondary bile acids such as chenodeoxycholic acid 3-sulfate, isodeoxycholic acid, taurodeoxycholic acid, and 3-dehydrocholic acid; the levels of these metabolites were restored by faecal microbiota transplantation. Faecal microbiota transplantation after antibiotic treatment can gradually ameliorate gut microbiota disorder caused by antibiotic treatment and reduce the number of drug resistance genes induced by antibiotics. Conclusion In contrast to direct antibiotic treatment, faecal microbiota transplantation improves the prognosis of mice with pneumonia-derived sepsis caused by Klebsiella pneumoniae by improving the structure of the intestinal flora and increasing the level of beneficial metabolites, fatty acids and secondary bile acids, thereby reducing systemic inflammation, repairing the barrier function of alveolar epithelial cells, and alleviating pathological damage to the lungs. The combination of antibiotics with faecal microbiota transplantation significantly alleviates intestinal microbiota disorder, reduces the selection for drug resistance genes caused by antibiotics, and mitigates lung lesions; these effects are superior to those following antibiotic monotherapy.
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Affiliation(s)
- Yuxiu Tang
- Department of Intensive Care Unit, the First Affiliated Hospital of Soochow University, Suzhou, China
| | - Liquan Chen
- Department of Intensive Care Unit, the First Affiliated Hospital of Soochow University, Suzhou, China
| | - Jin Yang
- Department of Intensive Care Unit, the First Affiliated Hospital of Soochow University, Suzhou, China
| | - Suqing Zhang
- Department of School of Biology & Basic Medicine Sciences, Suzhou Medical College of Soochow University, Suzhou, China
| | - Jun Jin
- Department of Intensive Care Unit, the First Affiliated Hospital of Soochow University, Suzhou, China
| | - Yao Wei
- Department of Intensive Care Unit, the First Affiliated Hospital of Soochow University, Suzhou, China
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Gao Y, Liu L, Cui Y, Zhang J, Wu X. The causality of gut microbiota on onset and progression of sepsis: a bi-directional Mendelian randomization analysis. Front Immunol 2024; 15:1266579. [PMID: 38698853 PMCID: PMC11063379 DOI: 10.3389/fimmu.2024.1266579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Accepted: 03/29/2024] [Indexed: 05/05/2024] Open
Abstract
Background Several observational studies have proposed a potential link between gut microbiota and the onset and progression of sepsis. Nevertheless, the causality of gut microbiota and sepsis remains debatable and warrants more comprehensive exploration. Methods We conducted a two-sample Mendelian randomization (MR) analysis to test the causality between gut microbiota and the onset and progression of sepsis. The genome-wide association study (GWAS) summary statistics for 196 bacterial traits were extracted from the MiBioGen consortium, whereas the GWAS summary statistics for sepsis and sepsis-related outcomes came from the UK Biobank. The inverse-variance weighted (IVW) approach was the primary method used to examine the causal association. To complement the IVW method, we utilized four additional MR methods. We performed a series of sensitivity analyses to examine the robustness of the causal estimates. Results We assessed the causality of 196 bacterial traits on sepsis and sepsis-related outcomes. Genus Coprococcus2 [odds ratio (OR) 0.81, 95% confidence interval (CI) (0.69-0.94), p = 0.007] and genus Dialister (OR 0.85, 95% CI 0.74-0.97, p = 0.016) had a protective effect on sepsis, whereas genus Ruminococcaceae UCG011 (OR 1.10, 95% CI 1.01-1.20, p = 0.024) increased the risk of sepsis. When it came to sepsis requiring critical care, genus Anaerostipes (OR 0.49, 95% CI 0.31-0.76, p = 0.002), genus Coprococcus1 (OR 0.65, 95% CI 0.43-1.00, p = 0.049), and genus Lachnospiraceae UCG004 (OR 0.51, 95% CI 0.34-0.77, p = 0.001) emerged as protective factors. Concerning 28-day mortality of sepsis, genus Coprococcus1 (OR 0.67, 95% CI 0.48-0.94, p = 0.020), genus Coprococcus2 (OR 0.48, 95% CI 0.27-0.86, p = 0.013), genus Lachnospiraceae FCS020 (OR 0.70, 95% CI 0.52-0.95, p = 0.023), and genus Victivallis (OR 0.82, 95% CI 0.68-0.99, p = 0.042) presented a protective effect, whereas genus Ruminococcus torques group (OR 1.53, 95% CI 1.00-2.35, p = 0.049), genus Sellimonas (OR 1.25, 95% CI 1.04-1.50, p = 0.019), and genus Terrisporobacter (OR 1.43, 95% CI 1.02-2.02, p = 0.040) presented a harmful effect. Furthermore, genus Coprococcus1 (OR 0.42, 95% CI 0.19-0.92, p = 0.031), genus Coprococcus2 (OR 0.34, 95% CI 0.14-0.83, p = 0.018), and genus Ruminiclostridium6 (OR 0.43, 95% CI 0.22-0.83, p = 0.012) were associated with a lower 28-day mortality of sepsis requiring critical care. Conclusion This MR analysis unveiled a causality between the 21 bacterial traits and sepsis and sepsis-related outcomes. Our findings may help the development of novel microbiota-based therapeutics to decrease the morbidity and mortality of sepsis.
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Affiliation(s)
| | | | | | | | - Xiuying Wu
- Department of Anesthesia, ShengJing Hospital of China Medical University, Shenyang, Liaoning, China
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Lee SJ, Kim D, Ann HW, Han M, Lee JA, Lee Y, Ahn S, Seo HW, Kim JH, Ahn JY, Jeong SJ, Ku NS, Yeom JS, Ryu CM, Choi JY. DECIPHERING GUT MICROBIOTA IN PATIENTS WITH SEVERE SEPSIS AND SEPTIC SHOCK. Shock 2024; 61:28-33. [PMID: 37878472 DOI: 10.1097/shk.0000000000002241] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2023]
Abstract
ABSTRACT Introduction: Gut microbiota dysbiosis is associated with susceptibility to sepsis and poor outcomes. However, changes to the intestinal microbiota during sepsis and their value as biomarkers are unclear. In this study, we compared the intestinal microbiota of patients with sepsis and healthy controls. Methods: Stool was collected from patients with sepsis (subdivided according to mortality) and controls. Microbiome diversity and composition were analyzed by 16S rRNA gene pyrosequencing. The α-diversity of the intestinal microbiome was determined using operational taxonomic unit counts and the Chao1, Shannon, and ACE indices. Adjusted Cox regression analyses assessed 6-month mortality risk factors. Results: Fifty-nine patients (14 in-hospital deaths) and 29 healthy controls were enrolled. Operational taxonomic unit counts and Chao1 and ACE indices were lower in the nonsurvivor than in the other groups. The controls showed a higher Shannon and lower Simpson index than did the sepsis group. The genus Blautia was more abundant in controls than in the sepsis group, and Faecalibacterium less abundant in the nonsurvivor than in the other groups. Regression analysis associated low Shannon index with 6-month mortality. Conclusions: Survivors of sepsis, nonsurvivors, and healthy controls have different gut microbiomes, and a low Shannon index is a risk factor for 6-month mortality.
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Affiliation(s)
| | - Dajeong Kim
- Infectious Disease Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, Republic of Korea
| | - Hea Won Ann
- Division of Infectious Diseases, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Min Han
- Division of Infectious Diseases, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Jung Ah Lee
- Division of Infectious Diseases, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Yongseop Lee
- Division of Infectious Diseases, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Sangmin Ahn
- Division of Infectious Diseases, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Hwi Won Seo
- Infectious Disease Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, Republic of Korea
| | - Jung Ho Kim
- Division of Infectious Diseases, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Jin Young Ahn
- Division of Infectious Diseases, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Su Jin Jeong
- Division of Infectious Diseases, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Nam Su Ku
- Division of Infectious Diseases, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Joon-Sup Yeom
- Division of Infectious Diseases, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Choong-Min Ryu
- Infectious Disease Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, Republic of Korea
| | - Jun Yong Choi
- Division of Infectious Diseases, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
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Xiao Y, Fang H, Zhu Y, Zhou J, Dai Z, Wang H, Xia Z, Tu Z, Leong KW. Multifunctional Cationic Hyperbranched Polyaminoglycosides that Target Multiple Mediators for Severe Abdominal Trauma Management. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2305273. [PMID: 37997512 PMCID: PMC10767409 DOI: 10.1002/advs.202305273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 09/12/2023] [Indexed: 11/25/2023]
Abstract
Trauma and its associated complications, including dysregulated inflammatory responses, severe infection, and disseminated intravascular coagulation (DIC), continue to pose lethal threats worldwide. Following injury, cell-free nucleic acids (cfNAs), categorized as damage-associated molecular patterns (DAMPs), are released from dying or dead cells, triggering local and systemic inflammatory responses and coagulation abnormalities that worsen disease progression. Harnessing cfNA scavenging strategies with biomaterials has emerged as a promising approach for treating posttrauma systemic inflammation. In this study, the effectiveness of cationic hyperbranched polyaminoglycosides derived from tobramycin (HPT) and disulfide-included HPT (ss-HPT) in scavenging cfNAs to mitigate posttrauma inflammation and hypercoagulation is investigated. Both cationic polymers demonstrate the ability to suppress DAMP-induced toll-like receptor (TLR) activation, inflammatory cytokine secretion, and hypercoagulation by efficiently scavenging cfNAs. Additionally, HPT and ss-HPT exhibit potent antibacterial efficacy attributed to the presence of tobramycin in their chemical composition. Furthermore, HPT and ss-HPT exhibit favorable modulatory effects on inflammation and therapeutic outcomes in a cecal ligation puncture (CLP) mouse abdominal trauma model. Notably, in vivo studies reveal that ss-HPT displayed high accumulation and retention in injured organs of traumatized mice while maintaining a higher biodegradation rate in healthy mice, contrasting with findings for HPT. Thus, functionalized ss-HPT, a bioreducible polyaminoglycoside, holds promise as an effective option to enhance therapeutic outcomes for trauma patients by alleviating posttrauma inflammation and coagulation complications.
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Affiliation(s)
- Yongqiang Xiao
- Department of Burn Surgerythe First Affiliated HospitalNaval Medical UniversityShanghai200433P. R. China
- Department of Biomedical EngineeringColumbia UniversityNew YorkNY10027USA
- ENT InstituteDepartment of Facial Plastic and Reconstructive SurgeryEye & ENT HospitalFudan UniversityShanghai200031P. R. China
| | - He Fang
- Department of Burn Surgerythe First Affiliated HospitalNaval Medical UniversityShanghai200433P. R. China
| | - Yuefei Zhu
- Department of Biomedical EngineeringColumbia UniversityNew YorkNY10027USA
| | - Jie Zhou
- Department of Breast SurgeryAffiliated Cancer Hospital and InstituteGuangzhou Medical UniversityGuangzhou510095P. R. China
| | - Zhanzhan Dai
- Department of Burn Surgerythe First Affiliated HospitalNaval Medical UniversityShanghai200433P. R. China
| | - Hongxia Wang
- Department of Biomedical EngineeringColumbia UniversityNew YorkNY10027USA
| | - Zhaofan Xia
- Department of Burn Surgerythe First Affiliated HospitalNaval Medical UniversityShanghai200433P. R. China
| | - Zhaoxu Tu
- Department of Biomedical EngineeringColumbia UniversityNew YorkNY10027USA
- The Sixth Affiliated HospitalSun Yat‐sen UniversityGuangzhouGuangdong510655P. R. China
| | - Kam W. Leong
- Department of Biomedical EngineeringColumbia UniversityNew YorkNY10027USA
- Department of Systems BiologyColumbia University Medical CenterNew YorkNY10032USA
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Zhou P, Zou Z, Wu W, Zhang H, Wang S, Tu X, Huang W, Chen C, Zhu S, Weng Q, Zheng S. The gut-lung axis in critical illness: microbiome composition as a predictor of mortality at day 28 in mechanically ventilated patients. BMC Microbiol 2023; 23:399. [PMID: 38110878 PMCID: PMC10726596 DOI: 10.1186/s12866-023-03078-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Accepted: 10/20/2023] [Indexed: 12/20/2023] Open
Abstract
BACKGROUND Microbial communities are of critical importance in the human host. The lung and gut microbial communities represent the most essential microbiota within the human body, collectively referred to as the gut-lung axis. However, the differentiation between these communities and their influence on clinical outcomes in critically ill patients remains uncertain. METHODS An observational cohort study was obtained in the intensive care unit (ICU) of an affiliated university hospital. Sequential samples were procured from two distinct anatomical sites, namely the respiratory and intestinal tracts, at two precisely defined time intervals: within 48 h and on day 7 following intubation. Subsequently, these samples underwent a comprehensive analysis to characterize microbial communities using 16S ribosomal RNA (rRNA) gene sequencing and to quantify concentrations of fecal short-chain fatty acids (SCFAs). The primary predictors in this investigation included lung and gut microbial diversity, along with indicator species. The primary outcome of interest was the survival status at 28 days following mechanical ventilation. RESULTS Sixty-two mechanically ventilated critically ill patients were included in this study. Compared to the survivors, the diversity of microorganisms was significantly lower in the deceased, with a significant contribution from the gut-originated fraction of lung microorganisms. Lower concentrations of fecal SCFAs were detected in the deceased. Multivariate Cox regression analysis revealed that not only lung microbial diversity but also the abundance of Enterococcaceae from the gut were correlated with day 28 mortality. CONCLUSION Critically ill patients exhibited lung and gut microbial dysbiosis after mechanical ventilation, as evidenced by a significant decrease in lung microbial diversity and the proliferation of Enterococcaceae in the gut. Levels of fecal SCFAs in the deceased served as a marker of imbalance between commensal and pathogenic flora in the gut. These findings emphasize the clinical significance of microbial profiling in predicting the prognosis of ICU patients.
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Affiliation(s)
- Piaopiao Zhou
- Department of Critical Care Medicine, Fujian Medical University Union Hospital, Fuzhou, China
| | - Zhiqiang Zou
- Department of Critical Care Medicine, Fujian Medical University Union Hospital, Fuzhou, China
| | - Wenwei Wu
- Department of Critical Care Medicine, Fujian Medical University Union Hospital, Fuzhou, China
| | - Hui Zhang
- Department of Critical Care Medicine, Fujian Medical University Union Hospital, Fuzhou, China
| | - Shuling Wang
- Department of Critical Care Medicine, Fujian Medical University Union Hospital, Fuzhou, China
| | - Xiaoyan Tu
- Department of Critical Care Medicine, Fujian Medical University Union Hospital, Fuzhou, China
| | - Weibin Huang
- Department of Critical Care Medicine, Fujian Medical University Union Hospital, Fuzhou, China
| | - Cunrong Chen
- Department of Critical Care Medicine, Fujian Medical University Union Hospital, Fuzhou, China
| | - Shuaijun Zhu
- Department of Critical Care Medicine, Fujian Medical University Union Hospital, Fuzhou, China
| | - Qinyong Weng
- Department of Critical Care Medicine, Fujian Medical University Union Hospital, Fuzhou, China.
| | - Shixiang Zheng
- Department of Critical Care Medicine, Fujian Medical University Union Hospital, Fuzhou, China.
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He S, Lin F, Hu X, Pan P. Gut Microbiome-Based Therapeutics in Critically Ill Adult Patients-A Narrative Review. Nutrients 2023; 15:4734. [PMID: 38004128 PMCID: PMC10675331 DOI: 10.3390/nu15224734] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2023] [Revised: 11/02/2023] [Accepted: 11/07/2023] [Indexed: 11/26/2023] Open
Abstract
The gut microbiota plays a crucial role in the human microenvironment. Dysbiosis of the gut microbiota is a common pathophysiological phenomenon in critically ill patients. Therefore, utilizing intestinal microbiota to prevent complications and improve the prognosis of critically ill patients is a possible therapeutic direction. The gut microbiome-based therapeutics approach focuses on improving intestinal microbiota homeostasis by modulating its diversity, or treating critical illness by altering the metabolites of intestinal microbiota. There is growing evidence that fecal microbiota transplantation (FMT), selective digestive decontamination (SDD), and microbiota-derived therapies are all effective treatments for critical illness. However, different treatments are appropriate for different conditions, and more evidence is needed to support the selection of optimal gut microbiota-related treatments for different diseases. This narrative review summarizes the curative effects and limitations of microbiome-based therapeutics in different critically ill adult patients, aiming to provide possible directions for gut microbiome-based therapeutics for critically ill patients such as ventilator-associated pneumonia, sepsis, acute respiratory distress syndrome, and COVID-19, etc.
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Affiliation(s)
- Shiyue He
- Center of Respiratory Medicine, Xiangya Hospital, Central South University, Changsha 410008, China; (S.H.); (F.L.)
- FuRong Laboratory, Changsha 410078, China
| | - Fengyu Lin
- Center of Respiratory Medicine, Xiangya Hospital, Central South University, Changsha 410008, China; (S.H.); (F.L.)
- FuRong Laboratory, Changsha 410078, China
| | - Xinyue Hu
- Center of Respiratory Medicine, Xiangya Hospital, Central South University, Changsha 410008, China; (S.H.); (F.L.)
- FuRong Laboratory, Changsha 410078, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Changsha 410008, China
- Hunan Engineering Research Center for Intelligent Diagnosis and Treatment of Respiratory Disease, Changsha 410008, China
| | - Pinhua Pan
- Center of Respiratory Medicine, Xiangya Hospital, Central South University, Changsha 410008, China; (S.H.); (F.L.)
- FuRong Laboratory, Changsha 410078, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Changsha 410008, China
- Hunan Engineering Research Center for Intelligent Diagnosis and Treatment of Respiratory Disease, Changsha 410008, China
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You J, Bi X, Zhang K, Xie D, Chai Y, Wen S, Xian Y, Fan M, Xu W, Li M, Yuan X. Causal associations between gut microbiota and sepsis: A two-sample Mendelian randomization study. Eur J Clin Invest 2023; 53:e14064. [PMID: 37464539 DOI: 10.1111/eci.14064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 06/09/2023] [Accepted: 07/02/2023] [Indexed: 07/20/2023]
Abstract
BACKGROUND Targeting the gut microbiota may become a new therapeutic to prevent and treat sepsis. Nonetheless, the causal relationship between specific intestinal flora and sepsis is still unclear. METHODS A two-sample Mendelian randomization study was performed using the summary statistics of gut microbiota from the largest available genome-wide association study (n = 18,340). The summary statistics of sepsis were obtained from the UK Biobank (n = 486,484). Inverse-variance weighted, weighted median and MR-Egger were used to examine the causal association between gut microbiota and sepsis. Cochrane's Q test, MR-Egger intercept test, MR-PRESSO Global test and Rucker's Q'-test were used for sensitivity analyses. The leave-one method was used for testing the stability of MR results, and Bonferroni-corrected was used to test the strength of the causal relationship between exposure and outcome. RESULTS Nine intestinal microflora were found causally associated with sepsis, and 11 intestinal microflora were causally associated with 28-day death in sepsis. Among them, Order Victivallales had a strong causality with lower risk of sepsis (OR = 0.86, 95% CI: 0.78-0.94, p = .00165) and lower 28-day mortality of sepsis (OR = 0.68, 95% CI: 0.53-0.87, p = .00179) after Bonferroni-corrected test. No pleiotropy was detected. CONCLUSIONS Through the two-sample MR analysis, we identified the specific intestinal flora that had a causal relationship with the risk and prognosis of sepsis at the level of gene prediction, which may provide helpful biomarkers for early disease diagnosis and potential therapeutic targets for sepsis.
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Affiliation(s)
- Jingya You
- Department of General Intensive Care Unit, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Xiaogang Bi
- Department of General Intensive Care Unit, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Kouxing Zhang
- Department of General Intensive Care Unit, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Dan Xie
- Department of General Intensive Care Unit, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Yiwen Chai
- Department of General Intensive Care Unit, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Sha Wen
- Department of Critical Care Medicine, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen, China
| | - Ying Xian
- Department of General Intensive Care Unit, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Min Fan
- Department of General Intensive Care Unit, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Wen Xu
- Department of General Intensive Care Unit, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Mingliang Li
- Department of General Intensive Care Unit, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Xiaofeng Yuan
- Department of General Intensive Care Unit, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
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Zhang L, Shi X, Qiu H, Liu S, Yang T, Li X, Liu X. Protein modification by short-chain fatty acid metabolites in sepsis: a comprehensive review. Front Immunol 2023; 14:1171834. [PMID: 37869005 PMCID: PMC10587562 DOI: 10.3389/fimmu.2023.1171834] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Accepted: 09/15/2023] [Indexed: 10/24/2023] Open
Abstract
Sepsis is a major life-threatening syndrome of organ dysfunction caused by a dysregulated host response due to infection. Dysregulated immunometabolism is fundamental to the onset of sepsis. Particularly, short-chain fatty acids (SCFAs) are gut microbes derived metabolites serving to drive the communication between gut microbes and the immune system, thereby exerting a profound influence on the pathophysiology of sepsis. Protein post-translational modifications (PTMs) have emerged as key players in shaping protein function, offering novel insights into the intricate connections between metabolism and phenotype regulation that characterize sepsis. Accumulating evidence from recent studies suggests that SCFAs can mediate various PTM-dependent mechanisms, modulating protein activity and influencing cellular signaling events in sepsis. This comprehensive review discusses the roles of SCFAs metabolism in sepsis associated inflammatory and immunosuppressive disorders while highlights recent advancements in SCFAs-mediated lysine acylation modifications, such as substrate supplement and enzyme regulation, which may provide new pharmacological targets for the treatment of sepsis.
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Affiliation(s)
- Liang Zhang
- Department of Pharmacology, College of Pharmacy, Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Drug Metabolism, Chongqing, China
- Key Laboratory for Biochemistry and Molecular Pharmacology of Chongqing, Chongqing, China
| | - Xinhui Shi
- Department of Pharmacology, College of Pharmacy, Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Drug Metabolism, Chongqing, China
- Key Laboratory for Biochemistry and Molecular Pharmacology of Chongqing, Chongqing, China
| | - Hongmei Qiu
- Department of Pharmacology, College of Pharmacy, Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Drug Metabolism, Chongqing, China
- Key Laboratory for Biochemistry and Molecular Pharmacology of Chongqing, Chongqing, China
| | - Sijia Liu
- Department of Pharmacology, College of Pharmacy, Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Drug Metabolism, Chongqing, China
- Key Laboratory for Biochemistry and Molecular Pharmacology of Chongqing, Chongqing, China
| | - Ting Yang
- Department of Pharmacology, College of Pharmacy, Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Drug Metabolism, Chongqing, China
- Key Laboratory for Biochemistry and Molecular Pharmacology of Chongqing, Chongqing, China
| | - Xiaoli Li
- Department of Pharmacology, College of Pharmacy, Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Drug Metabolism, Chongqing, China
- Key Laboratory for Biochemistry and Molecular Pharmacology of Chongqing, Chongqing, China
| | - Xin Liu
- Medical Research Center, Southwest Hospital, Third Military Medical University, Chongqing, China
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11
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Liu Y, Guo Y, Hu S, Wang Y, Zhang L, Yu L, Geng F. Analysis of the dynamic changes in gut microbiota in patients with different severity in sepsis. BMC Infect Dis 2023; 23:614. [PMID: 37723420 PMCID: PMC10507951 DOI: 10.1186/s12879-023-08608-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2023] [Accepted: 09/13/2023] [Indexed: 09/20/2023] Open
Abstract
BACKGROUND The gastrointestinal tract contains a massive microbiota, and targeting the gut could be a potential intervention for sepsis. However, the interaction between sepsis and the intestinal microbiota is defined as an "incompletely understood bidirectional relationship". METHODS This retrospective observational cohort study investigated the fecal microbiota of sepsis patients admitted to the Department of Critical Care Medicine of the Central Hospital of Wuhan, China, from May 2019 to January 2020. 14 septic patients were divided into the non-severe group and the severe group according to the Acute Physiology and Chronic Health Evaluation II (APACHE II) score. Herein, fecal samples were serially collected on admission, the third, fourth, and fifth days, and ICU discharge. The fecal microbiota was analyzed by 16S rRNA gene sequencing and its correlation with clinical parameters was evaluated. RESULTS Bacteroidetes, Firmicutes, and Proteobacteria were dominant phyla at ICU admission, and fecal biodiversity was not significantly different between the non-severe group (APACHE II < 15) and the severe group (APACHE II > 15). However, the diversity of the gut microbiota was significantly lower at ICU discharge than that at ICU admission with the extension of treatment time. Further significant difference flora analysis (LEfSe) showed that the genera Veillonella and Ruminococcus were the most discriminant biomarkers at ICU admission in non-severe and severe patients, respectively, while Enterococcus was the most discriminant biomarker at ICU discharge in all septic patients. Of note, liver function tests, including ALT, AST, TBIL, and DBIL correlated with the prevalence of various bacterial genera. CONCLUSIONS The diversity of the gut microbiota in patients with sepsis decreases dramatically during ICU stay, and there are distinct dynamic changes in gut microbiota among patients with different severity in sepsis.
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Affiliation(s)
- Yanli Liu
- Intensive Care Unit, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yanan Guo
- Intensive Care Unit, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Su Hu
- Intensive Care Unit, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yujun Wang
- Intensive Care Unit, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Lijuan Zhang
- Intensive Care Unit, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Li Yu
- Intensive Care Unit, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Feng Geng
- Intensive Care Unit, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
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12
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Sun Y, Song J, Lan X, Ma F, Jiang M, Jiang C. Calcium-Sensitive Receptors Alters Intestinal Microbiota Metabolites Especially SCFAs and Ameliorates Intestinal Barrier Damage in Neonatal Rat Endotoxemia. Infect Drug Resist 2023; 16:5707-5717. [PMID: 37667808 PMCID: PMC10475303 DOI: 10.2147/idr.s420689] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Accepted: 08/17/2023] [Indexed: 09/06/2023] Open
Abstract
Purpose The calcium-sensing receptor (CaSR) acts as a major modulator of tissue responses related to calcium homeostasis and expresses highly in the mammalian intestine. Endotoxemia tends to impair intestinal barrier function and poses significant obstacles in clinical treatment. This work is designed to decipher whether CaSR can protect lipopolysaccharide (LPS)-induced intestinal barrier dysfunction in neonatal rats by targeting intestinal metabolites. Patient and Methods In this study, we utilized gas chromatography (GC) combined with liquid chromatography-mass spectrometry (LC-MS) to quantitatively analyze SCFAs and metabolites in fecal samples of 24 neonatal rats with LPS induced endotoxemia. Results Our results showed that CaSR alleviated endotoxin damage to the intestinal tight junction structure and upregulated the levels of butyric acid, propionic acid, valeric acid, and isovaleric acid in short-chain fatty acids (SCFAs). Non-targeted metabolomics analysis indicated that CaSR improved intestinal metabolic disorders by regulating glycerophospholipid metabolism, α-linolenic acid metabolism, as well as sphingolipids metabolism. Conclusion CaSR can alter intestinal microbiota metabolites, especially SCFAs, and improve intestinal barrier damage in neonatal rat endotoxemia.
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Affiliation(s)
- Yan Sun
- Department of Neonatology, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, 150001, People’s Republic of China
| | - Jiayu Song
- Department of Neonatology, Zhuhai Women and Children’s Hospital, Zhuhai, Guangdong, 519060, People’s Republic of China
| | - Xue Lan
- Department of Neonatology, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, 150001, People’s Republic of China
| | - Fei Ma
- Department of Neonatology, Zhuhai Women and Children’s Hospital, Zhuhai, Guangdong, 519060, People’s Republic of China
| | - Mingyu Jiang
- Department of Pediatrics, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, 150001, People’s Republic of China
| | - Chunming Jiang
- Department of Neonatology, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, 150001, People’s Republic of China
- Department of Neonatology, Zhuhai Women and Children’s Hospital, Zhuhai, Guangdong, 519060, People’s Republic of China
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13
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Lou X, Xue J, Shao R, Mo C, Wang F, Chen G. Postbiotics as potential new therapeutic agents for sepsis. BURNS & TRAUMA 2023; 11:tkad022. [PMID: 37334140 PMCID: PMC10271603 DOI: 10.1093/burnst/tkad022] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/01/2023] [Revised: 03/01/2023] [Indexed: 06/20/2023]
Abstract
Sepsis is the main cause of death in critically ill patients and gut microbiota dysbiosis plays a crucial role in sepsis. On the one hand, sepsis leads to the destruction of gut microbiota and induces and aggravates terminal organ dysfunction. On the other hand, the activation of pathogenic gut flora and the reduction in beneficial microbial products increase the susceptibility of the host to sepsis. Although probiotics or fecal microbiota transplantation preserve gut barrier function on multiple levels, their efficacy in sepsis with intestinal microbiota disruptions remains uncertain. Postbiotics consist of inactivated microbial cells or cell components. They possess antimicrobial, immunomodulatory, antioxidant and antiproliferative activities. Microbiota-targeted therapy strategies, such as postbiotics, may reduce the incidence of sepsis and improve the prognosis of patients with sepsis by regulating gut microbial metabolites, improving intestinal barrier integrity and changing the composition of the gut microbiota. They offer a variety of mechanisms and might even be superior to more conventional 'biotics' such as probiotics and prebiotics. In this review, we present an overview of the concept of postbiotics and summarize what is currently known about postbiotics and their prospective utility in sepsis therapy. Overall, postbiotics show promise as a viable adjunctive therapy option for sepsis.
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Affiliation(s)
- Xiran Lou
- Medical School, Kunming University of Science and Technology, 727 Jingming South Road, Chenggong District, Kunming 650500, China
| | - Jinfang Xue
- Medical School, Kunming University of Science and Technology, 727 Jingming South Road, Chenggong District, Kunming 650500, China
| | - Ruifei Shao
- Medical School, Kunming University of Science and Technology, 727 Jingming South Road, Chenggong District, Kunming 650500, China
| | - Chunyan Mo
- Medical School, Kunming University of Science and Technology, 727 Jingming South Road, Chenggong District, Kunming 650500, China
| | - Fuping Wang
- Department of Emergency Medicine, The First People's Hospital of Yunnan Province, 157 Jinbi Road, Xishan District, Kunming 650034, China
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14
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Zhu Y, Cidan Y, Sun G, Li X, Shahid MA, Luosang Z, Suolang Z, Suo L, Basang W. Comparative analysis of gut fungal composition and structure of the yaks under different feeding models. Front Vet Sci 2023; 10:1193558. [PMID: 37396992 PMCID: PMC10310795 DOI: 10.3389/fvets.2023.1193558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2023] [Accepted: 05/09/2023] [Indexed: 07/04/2023] Open
Abstract
The yaks that inhabit the Tibetan plateau are a rare breed that is closely related to local economic development and human civilization. This ancient breed may have evolved a unique gut microbiota due to the hypoxic high-altitude environment. The gut microbiota is susceptible to external factors, but research regarding the effects of different feeding models on the gut fungal community in yaks remains scarce. In this study, we compared and analyzed the composition and variability of the gut fungal community among wild yaks (WYG), house-feeding domestic yaks (HFG), and grazing domestic yaks (GYG). The results revealed that Basidiomycota and Ascomycota were the most preponderant phyla in the gut fungal community, regardless of feeding models. Although the types of dominant fungal phyla did not change, their abundances did. Intergroup analysis of fungal diversity showed that the Shannon and Simpson indices of WYG and GYG were significantly higher than those of HFG. Fungal taxonomic analysis showed that there were 20 genera (Sclerostagonospora and Didymella) that were significantly different between WYG and GYG, and 16 genera (Thelebolus and Cystobasidium) that were significantly different between the WYG and HFG. Furthermore, the proportions of 14 genera (Claussenomyces and Papiliotrema) significantly decreased, whereas the proportions of eight genera (Stropharia and Lichtheimia) significantly increased in HFG as compared to GYG. Taken together, this study indicated that the gut fungal composition and structure differ significantly between yaks raised in different breeding groups.
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Affiliation(s)
- Yanbin Zhu
- Institute of Animal Husbandry and Veterinary Medicine, Tibet Academy of Agriculture and Animal Husbandry Sciences, Lhasa, China
- Linzhou Animal Husbandry and Veterinary Station, Lhasa, China
- Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China
- Key Laboratory of Animal Genetics and Breeding on Tibetan Plateau, Ministry of Agriculture and Rural Affairs, Lhasa, China
| | - Yangji Cidan
- Institute of Animal Husbandry and Veterinary Medicine, Tibet Academy of Agriculture and Animal Husbandry Sciences, Lhasa, China
| | - Guangming Sun
- Institute of Animal Husbandry and Veterinary Medicine, Tibet Academy of Agriculture and Animal Husbandry Sciences, Lhasa, China
| | - Xin Li
- Linzhou Animal Husbandry and Veterinary Station, Lhasa, China
| | - Muhammad Akbar Shahid
- Department of Pathobiology, Faculty of Veterinary Sciences, Bahauddin Zakariya University, Multan, Pakistan
| | - Zhaxi Luosang
- Linzhou Animal Husbandry and Veterinary Station, Lhasa, China
| | - Zhaxi Suolang
- Linzhou Animal Husbandry and Veterinary Station, Lhasa, China
| | - Lang Suo
- Linzhou Animal Husbandry and Veterinary Station, Lhasa, China
| | - Wangdui Basang
- Institute of Animal Husbandry and Veterinary Medicine, Tibet Academy of Agriculture and Animal Husbandry Sciences, Lhasa, China
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15
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Muske J, Knoop K. Contributions of the microbiota to the systemic inflammatory response. MICROBIOTA AND HOST 2023; 1:e230018. [PMID: 38872988 PMCID: PMC11170979 DOI: 10.1530/mah-23-0018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2024]
Abstract
The health of the intestinal microbiota impacts tolerance at homeostasis and the strength of the inflammation response during acute bloodstream infections. A complete understanding of the feedback loop between systemic inflammation and dysregulation of the gut microbiota is necessary for inflammation management. Here we will review the many ways in which the microbiota can influence the systemic pro-inflammatory response. Short-chain fatty acids, produced through the microbial metabolism of dietary fibers, can suppress inflammation systemically; in the absence of a balanced diet or disruption of the microbiota through antibiotics, there is disrupted metabolite production, leading to systemic inflammation. Dysbiosis or inflammation in the intestines can lead to a breakdown of the sturdy intestinal-epithelial barrier. When this barrier is perturbed, immunogenic lipopolysaccharides or extracellular vesicles enter the bloodstream and induce excessive inflammation. Necessary clinical treatments, such as antifungals or antibacterials, induce microbiota dysregulation and thus increased risk of endotoxemia; though probiotics may aid in improving the microbiota health and have been shown to deflate inflammation during sepsis. Within this complicated relationship: What is in control, the dysbiotic microbiota or the systemic inflammation?
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Affiliation(s)
- Josey Muske
- Mayo Graduate School of Biomedical Sciences
- Department of Immunology, Mayo Clinic Rochester, MN USA
| | - Kathryn Knoop
- Department of Immunology, Mayo Clinic Rochester, MN USA
- Department of Pediatrics, Mayo Clinic Rochester, MN USA
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