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Horseman TS, Parajuli B, Frank AM, Weaver A, Schauer DA, Moran S, Anderson JA, Holmes-Hampton GP, Burmeister DM. MICROBIOME AND INFLAMMASOME ALTERATIONS FOUND DURING RADIATION DOSE FINDING IN A SINCLAIR MINIPIG MODEL OF GASTROINTESTINAL ACUTE RADIATION SYNDROME. Shock 2024; 62:556-564. [PMID: 39012765 DOI: 10.1097/shk.0000000000002422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/18/2024]
Abstract
ABSTRACT Both abdominal radiotherapy and a nuclear event can result in gastrointestinal symptoms, including acute radiation syndrome (GI-ARS). GI-ARS is characterized by compromised intestinal barrier integrity increasing the risk for infectious complications. Physiologically relevant animal models are crucial for elucidating host responses and therapeutic targets. We aimed to determine the radiation dose requirements for creating GI-ARS in the Sinclair minipig. Male, sexually mature swine were randomly divided into sham (n = 6) and three lower hemibody radiation dosage groups of 8, 10, and 12 Gy (n = 5/group) delivered using linear accelerator-derived x-rays (1.9 Gy/min). Animals were monitored for GI-ARS symptoms for 14 days with rectal swab and blood collection at days 0-3, 7, 10, and 14 followed by necropsy for western blotting and histology. Dose-dependent increases in weight loss, diarrhea severity, and mortality (log-rank test, P = 0.041) were seen. Villi length was significantly reduced in all irradiated animals compared to controls ( P < 0.001). Serum citrulline decreased and bacterial translocation increased after irradiation compared to controls. Increased NLRP3 levels in post-mortem jejunum were seen ( P = 0.0043) as well as increased IL-1β levels in the 12 Gy group ( P = 0.041). Radiation dose and survival were associated with significant gut microbial community shifts in beta diversity. Moreover, decedents had increased Porphyromonas, Campylobacter, Bacteroides , Parvimonas , and decreased Fusobacterium and decreased Aerococcus, Lactobacillus, Prevotella, and Streptococcus . Our novel Sinclair minipig model showed dose-dependent clinical symptoms of GI-ARS. These findings provide invaluable insights into the intricate interplay between GI-ARS, intestinal inflammation, and gut microbiota alterations offering potential targets for therapeutic and diagnostic interventions after radiation exposure.
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Affiliation(s)
| | - Babita Parajuli
- Armed Forces Radiobiology Research Institute, Uniformed Services University of the Health Sciences, Bethesda, Maryland
| | - Andrew M Frank
- School of Medicine, Uniformed Services University of the Health Sciences, Bethesda, Maryland
| | - Alia Weaver
- Armed Forces Radiobiology Research Institute, Uniformed Services University of the Health Sciences, Bethesda, Maryland
| | - David A Schauer
- Armed Forces Radiobiology Research Institute, Uniformed Services University of the Health Sciences, Bethesda, Maryland
| | - Sean Moran
- Biomedical Instrumentation Center, Proteomics Core, Uniformed Services University of the Health Sciences, Bethesda, Maryland
| | - Joseph A Anderson
- Comparative Pathology Division, Department of Laboratory Animal Resources, Uniformed Services University of the Health Sciences, Bethesda, Maryland
| | - Gregory P Holmes-Hampton
- Armed Forces Radiobiology Research Institute, Uniformed Services University of the Health Sciences, Bethesda, Maryland
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Mohabbat M, Arazi H. Effect of resistance training plus enriched probiotic supplement on sestrin2, oxidative stress, and mitophagy markers in elderly male Wistar rats. Sci Rep 2024; 14:7744. [PMID: 38565633 PMCID: PMC10987664 DOI: 10.1038/s41598-024-58462-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Accepted: 03/29/2024] [Indexed: 04/04/2024] Open
Abstract
This study aimed to determine the effects of resistance training combined with a probiotic supplement enriched with vitamin D and leucine on sestrin2, oxidative stress, antioxidant defense, and mitophagy markers in aged Wistar rats. Thirty-five male rats were randomly assigned to two age groups (old with 18-24 months of age and young with 8-12 weeks of age) and then divided into five groups, including (1) old control (OC: n = 5 + 2 for reserve in all groups), (2) young control (YC: n = 5), (3) old resistance training (OR: n = 5), (4) old resistance training plus supplement (ORS: n = 5), and old supplement group (OS: n = 5). Training groups performed ladder climbing resistance training 3 times per week for 8 weeks. Training intensity was inserted progressively, with values equal to 65, 75, and 85, determining rats' maximal carrying load capacity. Each animal made 5 to 8 climbs in each training session, and the time of each climb was between 12 and 15 s, although the time was not the subject of the evaluation, and the climbing pattern was different in the animals. Old resistance plus supplement and old supplement groups received 1 ml of supplement 5 times per week by oral gavage in addition to standard feeding, 1 to 2 h post training sessions. Forty-eight hours after the end of the training program, 3 ml of blood samples were taken, and all rats were then sacrificed to achieve muscle samples. After 8 weeks of training, total antioxidant capacity and superoxide dismutase activity levels increased in both interventions. A synergistic effect of supplement with resistance training was observed for total antioxidant capacity, superoxide dismutase, and PTEN-induced kinase 1. Sestrin 2 decreased in intervention groups. These results suggest that resistance training plus supplement can boost antioxidant defense and mitophagy while potentially decreasing muscle strength loss.
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Affiliation(s)
- Majid Mohabbat
- Department of Exercise Physiology, Faculty of Sport Sciences, University of Guilan, P.O. Box: 41635-1438, Rasht, Iran
| | - Hamid Arazi
- Department of Exercise Physiology, Faculty of Sport Sciences, University of Guilan, P.O. Box: 41635-1438, Rasht, Iran.
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Kabiri-Arani S, Motallebi M, Taheri MA, Kheiripour N, Ardjmand A, Aghadavod E, Shahaboddin ME. The Effect of Heat-Killed Lactobacillus plantarum on Oxidative Stress and Liver Damage in Rats with Bile Duct Ligation-Induced Hepatic Fibrosis. Probiotics Antimicrob Proteins 2024; 16:196-211. [PMID: 36522610 DOI: 10.1007/s12602-022-10033-7] [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] [Accepted: 12/09/2022] [Indexed: 12/23/2022]
Abstract
This study is aimed at evaluating the effects of heat-killed Lactobacillus plantarum (L. plantarum) on cholestatic liver injury induced by bile duct ligation (BDL) in rats. Rats in the first group were healthy (normal control) and in the second group underwent abdominal incision (sham control). Rats in the third and fourth groups underwent common bile duct ligation and were treated with either oral distilled water (BDL control group) or heat-killed L. plantarum (BDL + L. plantarum) for 28 days. Finally, rats were sacrificed, blood samples were analyzed through biochemical methods, liver and ileum tissue tissues were histologically assessed, and the expression of the αSMA, TNF-α, IL-6, and IL-10 genes in the liver and ZO-1 gene in ileum tissues were assessed through real-time PCR. The levels of bilirubin, liver function enzymes, NO, MDA, and carbonyl protein in the BDL + L. plantarum group were significantly lower than in the BDL control group (P ≤ 0.05). SOD and CAT activity in BDL + L. plantarum group was significantly greater than the BDL control group 1.4 and 3.0 times, respectively (P ≤ 0.001). Moreover, in the BDL + L. plantarum group, the expression of the α-SMA, TNF-α, and IL-6 genes was significantly lower (3.1, 2.9, and 2.5 times), and IL-10 and ZO-1 genes were significantly greater than the BDL control group by 2.1 and 3.6 times, respectively (P ≤ 0.05). The histological assessment also confirmed the greater effectiveness of heat-killed L. plantarum in improving the morphology and parenchymal structure of the liver. Taken together, our results suggest that heat-killed L. plantarum strains are potential therapeutic agents for hepatic fibrosis.
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Affiliation(s)
- Shima Kabiri-Arani
- Department of Clinical Biochemistry, Faculty of Medicine, Kashan University of Medical Sciences, Pezeshk Blvd, Qotbe Ravandi Blvd, Kashan, Iran
| | - Mitra Motallebi
- Department of Immunology and Microbiology, Faculty of Medicine, Kashan University of Medical Sciences, Kashan, Iran
| | - Maryam Akhavan Taheri
- Anatomical Sciences Research Center, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran
| | - Nejat Kheiripour
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran
| | - Abolfazl Ardjmand
- Physiology Research Center, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran
| | - Esmat Aghadavod
- Department of Clinical Biochemistry, Faculty of Medicine, Kashan University of Medical Sciences, Pezeshk Blvd, Qotbe Ravandi Blvd, Kashan, Iran
| | - Mohammad Esmaeil Shahaboddin
- Department of Clinical Biochemistry, Faculty of Medicine, Kashan University of Medical Sciences, Pezeshk Blvd, Qotbe Ravandi Blvd, Kashan, Iran.
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran.
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Zeng F, Chen M, Yang S, Li R, Lu X, Zhang L, Chen T, Peng S, Zhou W, Li J. Distribution profiles of phenolic compounds in a cultivar of wampee (Clausena lansium (Lour.) Skeels) fruits and in vitro anti-inflammatory activity. JOURNAL OF ETHNOPHARMACOLOGY 2024; 319:117168. [PMID: 37704117 DOI: 10.1016/j.jep.2023.117168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Revised: 09/05/2023] [Accepted: 09/09/2023] [Indexed: 09/15/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The fruits of wampee (Clausena lansium (Lour.) Skeels), which contain significant amounts of phenolics, are frequently applied as traditional medications to prevent or relieve inflammatory symptoms. Green honey wampee (GHW) is a local cultivar specially cultivated in Lianjiang City, Guangdong Province. AIM OF THE STUDY This study aimed to investigate phenolic distribution profiles in the peels, seeds and pulp of GHW as well as elucidate the underlying molecular mechanisms of the effective compounds for anti-inflammatory activity. MATERIALS AND METHOD Phenolic compounds in the extract were identified through UPLC-MS/MS and their ability to alleviate inflammation was assessed using RAW 264.7 macrophages exposed to lipopolysaccharide. RESULTS Among the three parts of GHW fruits, the total phenolic contents followed a descending order of peels > pulp > seeds. Additionally, eighty-six phenols were tentatively determined from the three parts, of which flavonoids accounted for the highest proportion. Furthermore, the phenolic extract of peels, seeds and pulp exhibited potential anti-inflammatory activity through the suppression effect on different pro-inflammatory mediators (NO, IL-6 and TNF-α). Among the three principal phenolic compounds (rutin, quercitrin, isorhamnetin-3-O-neohesperidoside) detected in GHW fruits, quercitrin was proved to be a more important anti-inflammatory compound inhibiting the iNOS and TNF-α mRNA expressions through the suppression effect on the phosphorylation of IκBα and ERK, belonging to the NF-κB and MAPK signaling pathway respectively. CONCLUSIONS Not only wampee pulp but also its by-products like peels and seeds are able to be comprehensively utilized as immunomodulatory supplements for daily diets due to their rich phenolic contents.
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Affiliation(s)
- Fanke Zeng
- Key Laboratory of Tropical Crop Products Processing of Ministry of Agriculture and Rural Affairs, Agricultural Products Processing Research Institute, Chinese Academy of Tropical Agricultural Sciences, Zhanjiang, Guangdong, 524001, China
| | - Mianhong Chen
- Key Laboratory of Tropical Crop Products Processing of Ministry of Agriculture and Rural Affairs, Agricultural Products Processing Research Institute, Chinese Academy of Tropical Agricultural Sciences, Zhanjiang, Guangdong, 524001, China
| | - Shengtao Yang
- Key Laboratory of Tropical Crop Products Processing of Ministry of Agriculture and Rural Affairs, Agricultural Products Processing Research Institute, Chinese Academy of Tropical Agricultural Sciences, Zhanjiang, Guangdong, 524001, China
| | - Ruyi Li
- Key Laboratory of Tropical Crop Products Processing of Ministry of Agriculture and Rural Affairs, Agricultural Products Processing Research Institute, Chinese Academy of Tropical Agricultural Sciences, Zhanjiang, Guangdong, 524001, China.
| | - Xuli Lu
- Key Laboratory of Tropical Crop Products Processing of Ministry of Agriculture and Rural Affairs, Agricultural Products Processing Research Institute, Chinese Academy of Tropical Agricultural Sciences, Zhanjiang, Guangdong, 524001, China
| | - Li Zhang
- Key Laboratory of Tropical Crop Products Processing of Ministry of Agriculture and Rural Affairs, Agricultural Products Processing Research Institute, Chinese Academy of Tropical Agricultural Sciences, Zhanjiang, Guangdong, 524001, China
| | - Tinghui Chen
- Key Laboratory of Tropical Crop Products Processing of Ministry of Agriculture and Rural Affairs, Agricultural Products Processing Research Institute, Chinese Academy of Tropical Agricultural Sciences, Zhanjiang, Guangdong, 524001, China
| | - Shaodan Peng
- Key Laboratory of Tropical Crop Products Processing of Ministry of Agriculture and Rural Affairs, Agricultural Products Processing Research Institute, Chinese Academy of Tropical Agricultural Sciences, Zhanjiang, Guangdong, 524001, China
| | - Wei Zhou
- Key Laboratory of Tropical Crop Products Processing of Ministry of Agriculture and Rural Affairs, Agricultural Products Processing Research Institute, Chinese Academy of Tropical Agricultural Sciences, Zhanjiang, Guangdong, 524001, China
| | - Jihua Li
- Key Laboratory of Tropical Crop Products Processing of Ministry of Agriculture and Rural Affairs, Agricultural Products Processing Research Institute, Chinese Academy of Tropical Agricultural Sciences, Zhanjiang, Guangdong, 524001, China.
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Ai L, Luo D, Wang H, Liu X, Yang M, Tian F, Qin S, Liu J, Li Y. Ameliorative effects of Bifidobacterium longum peptide-1 on benzo(α)pyrene induced oxidative damages via daf-16 in Caenorhabditis elegans. Cell Stress Chaperones 2023; 28:909-920. [PMID: 37828395 PMCID: PMC10746624 DOI: 10.1007/s12192-023-01385-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2023] [Revised: 07/18/2023] [Accepted: 10/02/2023] [Indexed: 10/14/2023] Open
Abstract
Oxidative stress is implicated in numerous diseases, with benzo(α)pyrene (BaP) known for causing substantial oxidative damage. Bifidobacterium longum (B. longum) is recognized as an antioxidant bacterium for certain hosts, yet its influence on oxidative damages instigated by BaP remains undetermined. In our study, we introduced various strains of Caenorhabditis elegans (C. elegans) to BaP to trigger oxidative stress, subsequently treating them with different forms of B. longum to evaluate its protective effects. Additionally, we explored the role of daf-16 in this context. Our findings indicated that in wild-type N2 C. elegans, B. longum-even in the form of inactivated bacteria or bacterial ultrasonic lysates (BULs)-significantly extended lifespan. BaP exposure notably decreased lifespan, superoxide dismutase (SOD) activity, and motility, while simultaneously down-regulating the expression of reactive oxygen species (ROS)-associated genes (sod-3, sek-1, cat-1) and daf-16 downstream genes (sod-3, ctl-2). However, it significantly increased the ROS level, malondialdehyde (MDA) content, and lipofuscin accumulation and up-regulated another daf-16 downstream gene (clk-1) (P <0.05). Interestingly, when further treated with B. longum peptide-1 (BLP-1), opposite effects were observed, and all the aforementioned indices changed significantly. In the case of RNAi (daf-16) C. elegans, BaP exposure significantly shortened the lifespan (P <0.05), which was only slightly prolonged upon further treatment with BLP-1. Furthermore, the expression of daf-16 downstream genes showed minor alterations in RNAi C. elegans upon treatment with either BaP or BLP-1. In conclusion, our findings suggest that B. longum acts as a probiotic for C. elegans. BLP-1 was shown to safeguard C. elegans from numerous oxidative damages induced by BaP, but these protective effects were contingent upon the daf-16 gene.
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Affiliation(s)
- Ling Ai
- Department of Respiratory and Critical Care Medicine, The Affiliated Hospital of Southwest Medical University, No. 25, Taiping Street, Luzhou, 646000, Sichuan, China
- Inflammation & Allergic Diseases Research Unit, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, Sichuan, China
| | - Dan Luo
- Department of Respiratory and Critical Care Medicine, The Affiliated Hospital of Southwest Medical University, No. 25, Taiping Street, Luzhou, 646000, Sichuan, China
- Inflammation & Allergic Diseases Research Unit, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, Sichuan, China
- State Key Laboratory of Respiratory Disease for Allergy at Shenzhen University, Shenzhen Key Laboratory of Allergy & Immunology, Shenzhen University School of Medicine, Shenzhen, 518060, Guangdong, China
| | - Huailing Wang
- State Key Laboratory of Respiratory Disease for Allergy at Shenzhen University, Shenzhen Key Laboratory of Allergy & Immunology, Shenzhen University School of Medicine, Shenzhen, 518060, Guangdong, China
| | - Xiaoyu Liu
- State Key Laboratory of Respiratory Disease for Allergy at Shenzhen University, Shenzhen Key Laboratory of Allergy & Immunology, Shenzhen University School of Medicine, Shenzhen, 518060, Guangdong, China
| | - Min Yang
- Kexing Biopharm Co., Ltd., Shenzhen, 518057, Guangdong, China
| | - Fangfang Tian
- Kexing Biopharm Co., Ltd., Shenzhen, 518057, Guangdong, China
| | - Suofu Qin
- Kexing Biopharm Co., Ltd., Shenzhen, 518057, Guangdong, China
| | - Jie Liu
- State Key Laboratory of Respiratory Disease for Allergy at Shenzhen University, Shenzhen Key Laboratory of Allergy & Immunology, Shenzhen University School of Medicine, Shenzhen, 518060, Guangdong, China
| | - Yuying Li
- Department of Respiratory and Critical Care Medicine, The Affiliated Hospital of Southwest Medical University, No. 25, Taiping Street, Luzhou, 646000, Sichuan, China.
- Inflammation & Allergic Diseases Research Unit, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, Sichuan, China.
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Tang J, Wei Y, Pi C, Zheng W, Zuo Y, Shi P, Chen J, Xiong L, Chen T, Liu H, Zhao Q, Yin S, Ren W, Cao P, Zeng N, Zhao L. The therapeutic value of bifidobacteria in cardiovascular disease. NPJ Biofilms Microbiomes 2023; 9:82. [PMID: 37903770 PMCID: PMC10616273 DOI: 10.1038/s41522-023-00448-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2023] [Accepted: 10/03/2023] [Indexed: 11/01/2023] Open
Abstract
There has been an increase in cardiovascular morbidity and mortality over the past few decades, making cardiovascular disease (CVD) the leading cause of death worldwide. However, the pathogenesis of CVD is multi-factorial, complex, and not fully understood. The gut microbiome has long been recognized to play a critical role in maintaining the physiological and metabolic health of the host. Recent scientific advances have provided evidence that alterations in the gut microbiome and its metabolites have a profound influence on the development and progression of CVD. Among the trillions of microorganisms in the gut, bifidobacteria, which, interestingly, were found through the literature to play a key role not only in regulating gut microbiota function and metabolism, but also in reducing classical risk factors for CVD (e.g., obesity, hyperlipidemia, diabetes) by suppressing oxidative stress, improving immunomodulation, and correcting lipid, glucose, and cholesterol metabolism. This review explores the direct and indirect effects of bifidobacteria on the development of CVD and highlights its potential therapeutic value in hypertension, atherosclerosis, myocardial infarction, and heart failure. By describing the key role of Bifidobacterium in the link between gut microbiology and CVD, we aim to provide a theoretical basis for improving the subsequent clinical applications of Bifidobacterium and for the development of Bifidobacterium nutritional products.
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Affiliation(s)
- Jia Tang
- Key Laboratory of Medical Electrophysiology, Ministry of Education, School of Pharmacy of Southwest Medical University, Luzhou, 646000, P.R. China
- Luzhou Key Laboratory of Traditional Chinese Medicine for Chronic Diseases Jointly Built by Sichuan and Chongqing, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, Sichuan, 646000, P.R. China
- Chengdu University of Traditional Chinese Medicine State Key Laboratory of Southwestern Chinese Medicine Resources, 1166 Liutai Avenue, Wenjiang District, Chengdu, Sichuan, 611137, P.R. China
- Key Laboratory of Medical Electrophysiology, Ministry of Education, Development Planning Department of Southwest Medical University, Luzhou, Sichuan, 646000, P.R. China
| | - Yumeng Wei
- Key Laboratory of Medical Electrophysiology, Ministry of Education, School of Pharmacy of Southwest Medical University, Luzhou, 646000, P.R. China
- Central Nervous System Drug Key Laboratory of Sichuan Province, School of Pharmacy of Southwest Medical University, Luzhou, Sichuan, 646000, P.R. China
| | - Chao Pi
- Key Laboratory of Medical Electrophysiology, Ministry of Education, School of Pharmacy of Southwest Medical University, Luzhou, 646000, P.R. China
- Central Nervous System Drug Key Laboratory of Sichuan Province, School of Pharmacy of Southwest Medical University, Luzhou, Sichuan, 646000, P.R. China
| | - Wenwu Zheng
- Department of Cardiology, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, 646000, P.R. China
| | - Ying Zuo
- Department of Comprehensive Medicine, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, Sichuan, 646000, P.R. China
| | - Peng Shi
- Key Laboratory of Medical Electrophysiology, Ministry of Education, Development Planning Department of Southwest Medical University, Luzhou, Sichuan, 646000, P.R. China
| | - Jinglin Chen
- Key Laboratory of Medical Electrophysiology, Ministry of Education, School of Pharmacy of Southwest Medical University, Luzhou, 646000, P.R. China
- Luzhou Key Laboratory of Traditional Chinese Medicine for Chronic Diseases Jointly Built by Sichuan and Chongqing, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, Sichuan, 646000, P.R. China
- Chengdu University of Traditional Chinese Medicine State Key Laboratory of Southwestern Chinese Medicine Resources, 1166 Liutai Avenue, Wenjiang District, Chengdu, Sichuan, 611137, P.R. China
- Key Laboratory of Medical Electrophysiology, Ministry of Education, Development Planning Department of Southwest Medical University, Luzhou, Sichuan, 646000, P.R. China
| | - Linjin Xiong
- Key Laboratory of Medical Electrophysiology, Ministry of Education, School of Pharmacy of Southwest Medical University, Luzhou, 646000, P.R. China
- Luzhou Key Laboratory of Traditional Chinese Medicine for Chronic Diseases Jointly Built by Sichuan and Chongqing, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, Sichuan, 646000, P.R. China
- Chengdu University of Traditional Chinese Medicine State Key Laboratory of Southwestern Chinese Medicine Resources, 1166 Liutai Avenue, Wenjiang District, Chengdu, Sichuan, 611137, P.R. China
- Key Laboratory of Medical Electrophysiology, Ministry of Education, Development Planning Department of Southwest Medical University, Luzhou, Sichuan, 646000, P.R. China
| | - Tao Chen
- Key Laboratory of Medical Electrophysiology, Ministry of Education, School of Pharmacy of Southwest Medical University, Luzhou, 646000, P.R. China
- Luzhou Key Laboratory of Traditional Chinese Medicine for Chronic Diseases Jointly Built by Sichuan and Chongqing, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, Sichuan, 646000, P.R. China
- Chengdu University of Traditional Chinese Medicine State Key Laboratory of Southwestern Chinese Medicine Resources, 1166 Liutai Avenue, Wenjiang District, Chengdu, Sichuan, 611137, P.R. China
- Key Laboratory of Medical Electrophysiology, Ministry of Education, Development Planning Department of Southwest Medical University, Luzhou, Sichuan, 646000, P.R. China
| | - Huiyang Liu
- Key Laboratory of Medical Electrophysiology, Ministry of Education, School of Pharmacy of Southwest Medical University, Luzhou, 646000, P.R. China
- Luzhou Key Laboratory of Traditional Chinese Medicine for Chronic Diseases Jointly Built by Sichuan and Chongqing, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, Sichuan, 646000, P.R. China
- Chengdu University of Traditional Chinese Medicine State Key Laboratory of Southwestern Chinese Medicine Resources, 1166 Liutai Avenue, Wenjiang District, Chengdu, Sichuan, 611137, P.R. China
- Key Laboratory of Medical Electrophysiology, Ministry of Education, Development Planning Department of Southwest Medical University, Luzhou, Sichuan, 646000, P.R. China
| | - Qianjiao Zhao
- Key Laboratory of Medical Electrophysiology, Ministry of Education, School of Pharmacy of Southwest Medical University, Luzhou, 646000, P.R. China
- Luzhou Key Laboratory of Traditional Chinese Medicine for Chronic Diseases Jointly Built by Sichuan and Chongqing, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, Sichuan, 646000, P.R. China
- Chengdu University of Traditional Chinese Medicine State Key Laboratory of Southwestern Chinese Medicine Resources, 1166 Liutai Avenue, Wenjiang District, Chengdu, Sichuan, 611137, P.R. China
- Key Laboratory of Medical Electrophysiology, Ministry of Education, Development Planning Department of Southwest Medical University, Luzhou, Sichuan, 646000, P.R. China
| | - Suyu Yin
- Key Laboratory of Medical Electrophysiology, Ministry of Education, School of Pharmacy of Southwest Medical University, Luzhou, 646000, P.R. China
- Luzhou Key Laboratory of Traditional Chinese Medicine for Chronic Diseases Jointly Built by Sichuan and Chongqing, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, Sichuan, 646000, P.R. China
- Chengdu University of Traditional Chinese Medicine State Key Laboratory of Southwestern Chinese Medicine Resources, 1166 Liutai Avenue, Wenjiang District, Chengdu, Sichuan, 611137, P.R. China
- Key Laboratory of Medical Electrophysiology, Ministry of Education, Development Planning Department of Southwest Medical University, Luzhou, Sichuan, 646000, P.R. China
| | - Wei Ren
- National Traditional Chinese Medicine Clinical Research Base and Drug Research Center of the Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, Sichuan, 646000, P.R. China
| | - Peng Cao
- The Affiliated Hospital of Traditional Chinese and Western Medicine Nanjing University of Chinese Medicine, Nanjing, Jiangsu, 210028, P.R. China.
| | - Nan Zeng
- Chengdu University of Traditional Chinese Medicine State Key Laboratory of Southwestern Chinese Medicine Resources, 1166 Liutai Avenue, Wenjiang District, Chengdu, Sichuan, 611137, P.R. China.
| | - Ling Zhao
- Luzhou Key Laboratory of Traditional Chinese Medicine for Chronic Diseases Jointly Built by Sichuan and Chongqing, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, Sichuan, 646000, P.R. China.
- Chengdu University of Traditional Chinese Medicine State Key Laboratory of Southwestern Chinese Medicine Resources, 1166 Liutai Avenue, Wenjiang District, Chengdu, Sichuan, 611137, P.R. China.
- Key Laboratory of Medical Electrophysiology, Ministry of Education, Development Planning Department of Southwest Medical University, Luzhou, Sichuan, 646000, P.R. China.
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Huang C, Hao W, Wang X, Zhou R, Lin Q. Probiotics for the treatment of ulcerative colitis: a review of experimental research from 2018 to 2022. Front Microbiol 2023; 14:1211271. [PMID: 37485519 PMCID: PMC10358780 DOI: 10.3389/fmicb.2023.1211271] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Accepted: 06/22/2023] [Indexed: 07/25/2023] Open
Abstract
Ulcerative colitis (UC) has become a worldwide public health problem, and the prevalence of the disease among children has been increasing. The pathogenesis of UC has not been elucidated, but dysbiosis of the gut microbiota is considered the main cause of chronic intestinal inflammation. This review focuses on the therapeutic effects of probiotics on UC and the potential mechanisms involved. In animal studies, probiotics have been shown to alleviate symptoms of UC, including weight loss, diarrhea, blood in the stool, and a shortened colon length, while also restoring intestinal microecological homeostasis, improving gut barrier function, modulating the intestinal immune response, and attenuating intestinal inflammation, thereby providing theoretical support for the development of probiotic-based microbial products as an adjunctive therapy for UC. However, the efficacy of probiotics is influenced by factors such as the bacterial strain, dose, and form. Hence, the mechanisms of action need to be investigated further. Relevant clinical trials are currently lacking, so the extension of animal experimental findings to clinical application requires a longer period of consideration for validation.
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Affiliation(s)
- Cuilan Huang
- Wuxi People’s Hospital Affiliated to Nanjing Medical University, Wuxi Children’s Hospital, Wuxi, China
| | - Wujuan Hao
- Department of Digestive, Affiliated Children’s Hospital of Jiangnan University, Wuxi, China
| | - Xuyang Wang
- Wuxi People’s Hospital Affiliated to Nanjing Medical University, Wuxi Children’s Hospital, Wuxi, China
| | - Renmin Zhou
- Department of Digestive, Affiliated Children’s Hospital of Jiangnan University, Wuxi, China
| | - Qiong Lin
- Wuxi People’s Hospital Affiliated to Nanjing Medical University, Wuxi Children’s Hospital, Wuxi, China
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Lin Q, Hao WJ, Zhou RM, Huang CL, Wang XY, Liu YS, Li XZ. Pretreatment with Bifidobacterium longum BAA2573 ameliorates dextran sulfate sodium (DSS)-induced colitis by modulating gut microbiota. Front Microbiol 2023; 14:1211259. [PMID: 37346749 PMCID: PMC10280014 DOI: 10.3389/fmicb.2023.1211259] [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: 04/24/2023] [Accepted: 05/16/2023] [Indexed: 06/23/2023] Open
Abstract
Objectives Inflammatory bowel disease (IBD) is a chronic lifelong inflammatory disease. Probiotics such as Bifidobacterium longum are considered to be beneficial to the recovery of intestinal inflammation by interaction with gut microbiota. Our goals were to define the effect of the exclusive use of BAA2573 on dextran sulfate sodium (DSS)-induced colitis, including improvement of symptoms, alleviation of histopathological damage, and modulation of gut microbiota. Methods In the present study, we pretreated C57BL/6J mice with Bifidobacterium longum BAA2573, one of the main components in an over-the-counter (OTC) probiotic mixture BIFOTO capsule, before modeling with DSS. 16S rDNA sequencing and liquid chromatography-tandem mass spectrometry (LC-MS/MS)-based non-targeted metabolomic profiling were performed with the collected feces. Results We found that pretreatment of Bifidobacterium longum BAA2573 given by gavage significantly improved symptoms and histopathological damage in DSS-induced colitis mice. After the BAA2573 intervention, 57 genera and 39 metabolites were significantly altered. Pathway enrichment analysis demonstrated that starch and sucrose metabolism, vitamin B6 metabolism, and sphingolipid metabolism may contribute to ameliorating colitis. Moreover, we revealed that the gut microbiome and metabolites were interrelated in the BAA2573 intervention group, while Alistipes was the core genus. Conclusion Our study demonstrates the impact of BAA2573 on the gut microbiota and reveals a possible novel adjuvant therapy for IBD patients.
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Affiliation(s)
- Qiong Lin
- Nephrology and Immunology Department, Children's Hospital of Soochow University, Suzhou, Jiangsu, China
- Department of Digestive, Affiliated Children's Hospital of Jiangnan University, Wuxi, Jiangsu, China
| | - Wu-Juan Hao
- Department of Digestive, Affiliated Children's Hospital of Jiangnan University, Wuxi, Jiangsu, China
| | - Ren-Min Zhou
- Department of Digestive, Affiliated Children's Hospital of Jiangnan University, Wuxi, Jiangsu, China
| | | | - Xu-Yang Wang
- Nanjing Medical University, Nanjing, Jiangsu, China
| | - Yan-Shan Liu
- Department of Pediatric Laboratory, Affiliated Children's Hospital of Jiangnan University, Wuxi, Jiangsu, China
| | - Xiao-Zhong Li
- Nephrology and Immunology Department, Children's Hospital of Soochow University, Suzhou, Jiangsu, China
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Hu Y, Zhao Y, Jia X, Liu D, Huang X, Wang C, Zhu Y, Yue C, Deng S, Lyu Y. Lactic acid bacteria with a strong antioxidant function isolated from "Jiangshui," pickles, and feces. Front Microbiol 2023; 14:1163662. [PMID: 37293224 PMCID: PMC10246737 DOI: 10.3389/fmicb.2023.1163662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2023] [Accepted: 04/26/2023] [Indexed: 06/10/2023] Open
Abstract
Excessive free radicals and iron death lead to oxidative damage, which is one of the main causes of aging and diseases. In this field of antioxidation, developing new, safe, and efficient antioxidants is the main research focus. Lactic acid bacteria (LAB) are natural antioxidants with good antioxidant activity and can regulate gastrointestinal microecological balance and immunity. In this study, 15 LAB strains from fermented foods ("Jiangshui" and pickles) or feces were evaluated in terms of their antioxidant attributes. Strains with strong antioxidant capacity were preliminarily screened by the following tests: 2,2-diphenyl-1-picrylhydrazyl (DPPH), hydroxyl radical, superoxide anion radical scavenging capacity; ferrous ion chelating assay; hydrogen peroxide tolerance capacity. Then, the adhesion of the screened strains to the intestinal tract was examined using hydrophobic and auto-aggregation tests. The safety of the strains was analyzed based on their minimum inhibitory concentration and hemolysis, and 16S rRNA was used for molecular biological identification. Antimicrobial activity tests showed them probiotic function. The cell-free supernatant of selected strains were used to explore the protective effect against oxidative damage cells. The scavenging rate of DPPH, hydroxyl radicals, and ferrous ion-chelating of 15 strains ranged from 28.81-82.75%, 6.54-68.52%, and 9.46-17.92%, respectively, the scavenging superoxide anion scavenging activity all exceeded 10%. According to all the antioxidant-related tests, strains possessing high antioxidant activities J2-4, J2-5, J2-9, YP-1, and W-4 were screened, these five strains demonstrated tolerance to 2 mM hydrogen peroxide. J2-4, J2-5, and J2-9 were Lactobacillus fermentans and γ-hemolytic (non-hemolytic). YP-1 and W-4 were Lactobacillus paracasei and α-hemolytic (grass-green hemolytic). Although L. paracasei has been proven as a safe probiotic without hemolytic characteristics, the hemolytic characteristics of YP-1 and W-4 should be further studied. Due to the weak hydrophobicity and antimicrobial activity of J2-4, finally, we selected J2-5, J2-9 for cell experiment, J2-5 and J2-9 showed an excellent ability that resistant to oxidative damage by increasing SOD, CAT, T-AOC activity of 293T cells. Therefore, J2-5, and J2-9 strains from fermented foods "Jiangshui" could be used as potential antioxidants for functional food, health care, and skincare.
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Affiliation(s)
- Yue Hu
- Yan'an Key Laboratory of Microbial Drug Innovation and Transformation, School of Basic Medicine, Yan'an University, Yan'an, Shaanxi, China
- Non-coding RNA and Drug Discovery Key Laboratory of Sichuan Province, Chengdu Medical College, Chengdu, Sichuan, China
| | - Yan Zhao
- Life Science and Engineering, Southwest Jiaotong University, Chengdu, China
| | - Xu Jia
- Non-coding RNA and Drug Discovery Key Laboratory of Sichuan Province, Chengdu Medical College, Chengdu, Sichuan, China
- School of Basic Medical Sciences, Chengdu Medical College, Chengdu, Sichuan, China
| | - Dan Liu
- Department of TCM, Sichuan Province People's Hospital, Sichuan Academy of Medical Sciences, Chengdu, China
| | - Xinhe Huang
- Life Science and Engineering, Southwest Jiaotong University, Chengdu, China
| | - Cheng Wang
- School of Basic Medical Sciences, Chengdu Medical College, Chengdu, Sichuan, China
| | - Yanhua Zhu
- School of Basic Medical Sciences, Chengdu Medical College, Chengdu, Sichuan, China
| | - Changwu Yue
- Yan'an Key Laboratory of Microbial Drug Innovation and Transformation, School of Basic Medicine, Yan'an University, Yan'an, Shaanxi, China
| | - Shanshan Deng
- Non-coding RNA and Drug Discovery Key Laboratory of Sichuan Province, Chengdu Medical College, Chengdu, Sichuan, China
- School of Basic Medical Sciences, Chengdu Medical College, Chengdu, Sichuan, China
| | - Yuhong Lyu
- Yan'an Key Laboratory of Microbial Drug Innovation and Transformation, School of Basic Medicine, Yan'an University, Yan'an, Shaanxi, China
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Strategies for the Identification and Assessment of Bacterial Strains with Specific Probiotic Traits. Microorganisms 2022; 10:microorganisms10071389. [PMID: 35889107 PMCID: PMC9323131 DOI: 10.3390/microorganisms10071389] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 07/04/2022] [Accepted: 07/07/2022] [Indexed: 02/04/2023] Open
Abstract
Early in the 1900s, it was proposed that health could be improved and senility delayed by manipulating gut microbiota with the host-friendly bacteria found in yogurt. Later, in 1990, the medical community reconsidered this idea and today probiotics represent a developed area of research with a billion-dollar global industry. As a result, in recent decades, increased attention has been paid to the isolation and characterization of novel probiotic bacteria from fermented foods and dairy products. Most of the identified probiotic strains belong to the lactic acid bacteria group and the genus Bifidobacterium. However, current molecular-based knowledge has allowed the identification and culture of obligatory anaerobic commensal bacteria from the human gut, such as Akkermansia spp. and Faecalibacterium spp., among other human symbionts. We are aware that the identification of new strains of these species does not guarantee their probiotic effects and that each effect must be proved through in vitro and in vivo preclinical studies before clinical trials (before even considering it as a probiotic strain). In most cases, the identification and characterization of new probiotic strain candidates may lack the appropriate set of in vitro experiments allowing the next assessment steps. Here, we address some innovative strategies reported in the literature as alternatives to classical characterization: (i) identification of alternatives using whole-metagenome shotgun sequencing, metabolomics, and multi-omics analysis; and (ii) probiotic characterization based on molecular effectors and/or traits to target specific diseases (i.e., inflammatory bowel diseases, colorectal cancer, allergies, among others).
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Lu W, Wang Y, Fang Z, Wang H, Zhu J, Zhai Q, Zhao J, Zhang H, Chen W. Bifidobacterium longum CCFM752 prevented hypertension and aortic lesion, improved antioxidative ability, and regulated the gut microbiome in spontaneously hypertensive rats. Food Funct 2022; 13:6373-6386. [PMID: 35615892 DOI: 10.1039/d1fo04446j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Oxidative stress and gut dysbiosis are important risk factors for hypertension. In this study, the preventive effect of Bifidobacterium longum CCFM752 (CCFM752) on hypertension was evaluated. 5-week-old spontaneously hypertensive rats (SHR) were treated with vehicle or CCFM752 (1.0 × 109 CFU day-1) for 12 weeks. The increase in systolic blood pressure and diastolic blood pressure was significantly prevented by CCFM752 treatment. Simultaneously, CCFM752 prevented aortic fibrosis and hypertrophy and increased aortic endothelial nitric oxide synthase (eNOS) activity. CCFM752 presented an antioxidative effect by inhibiting aortic NADPH oxidase activation and increasing aortic and serum catalase activity, and reducing aortic reactive oxygen species (ROS). The gut dysbiosis of SHR, including the increased Firmicutes/Bacteroidetes ratio, decreased Actinobacteria as well as reduced α-diversity, were restored by CCFM752. CCFM752 also increased the prevalence of Bifidobacterium and Lactobacillus, while decreasing Turicibacter at the genus level. Furthermore, serum metabolomic analysis revealed that CCFM752 up-regulated serum proline and pyridoxamine 5'-phosphate, both of which were negatively correlated with blood pressure. In conclusion, the positive impact of CCFM752 on the gut microbiota may contribute to the antioxidative effect as well as its preventive effect on hypertension.
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Affiliation(s)
- Wenwei Lu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, PR China. .,School of Food Science and Technology, Jiangnan University, Wuxi 214122, PR China.,National Engineering Research Center for Functional Food, Jiangnan University, Wuxi, 214122, PR China
| | - Yusheng Wang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, PR China. .,School of Food Science and Technology, Jiangnan University, Wuxi 214122, PR China
| | - Zhifeng Fang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, PR China. .,School of Food Science and Technology, Jiangnan University, Wuxi 214122, PR China
| | - Hongchao Wang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, PR China. .,School of Food Science and Technology, Jiangnan University, Wuxi 214122, PR China
| | - Jinlin Zhu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, PR China. .,School of Food Science and Technology, Jiangnan University, Wuxi 214122, PR China
| | - Qixiao Zhai
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, PR China. .,School of Food Science and Technology, Jiangnan University, Wuxi 214122, PR China
| | - Jianxin Zhao
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, PR China. .,School of Food Science and Technology, Jiangnan University, Wuxi 214122, PR China
| | - Hao Zhang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, PR China. .,School of Food Science and Technology, Jiangnan University, Wuxi 214122, PR China.,National Engineering Research Center for Functional Food, Jiangnan University, Wuxi, 214122, PR China.,Wuxi Translational Medicine Research Center and Jiangsu Translational Medicine Research Institute Wuxi Branch, Wuxi 214122, PR China.,(Yangzhou) Institute of Food Biotechnology, Jiangnan University, Yangzhou 225004, PR China
| | - Wei Chen
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, PR China. .,School of Food Science and Technology, Jiangnan University, Wuxi 214122, PR China.,National Engineering Research Center for Functional Food, Jiangnan University, Wuxi, 214122, PR China
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12
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Averina OV, Poluektova EU, Marsova MV, Danilenko VN. Biomarkers and Utility of the Antioxidant Potential of Probiotic Lactobacilli and Bifidobacteria as Representatives of the Human Gut Microbiota. Biomedicines 2021; 9:1340. [PMID: 34680457 PMCID: PMC8533434 DOI: 10.3390/biomedicines9101340] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Revised: 09/12/2021] [Accepted: 09/22/2021] [Indexed: 12/12/2022] Open
Abstract
Lactobacilli and bifidobacteria are an important part of human gut microbiota. Among numerous benefits, their antioxidant properties are attracting more and more attention. Multiple in vivo and in vitro studies have demonstrated that lactobacilli and bifidobacteria, along with their cellular components, possess excellent antioxidant capacity, which provides a certain degree of protection to the human body against diseases associated with oxidative stress. Recently, lactobacilli and bifidobacteria have begun to be considered as a new source of natural antioxidants. This review summarizes the current state of research on various antioxidant properties of lactobacilli and bifidobacteria. Special emphasis is given to the mechanisms of antioxidant activity of these bacteria in the human gut microbiota, which involve bacterial cell components and metabolites. This review is also dedicated to the genes involved in the antioxidant properties of lactobacilli and bifidobacteria strains as indicators of their antioxidant potential in human gut microbiota. Identification of the antioxidant biomarkers of the gut microbiota is of great importance both for creating diagnostic systems for assessing oxidative stress and for choosing strategies aimed at restoring the normal functioning of the microbiota and, through it, restoring human health. In this review, the practical application of probiotic strains with proven antioxidant properties to prevent oxidative stress is also considered.
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Affiliation(s)
- Olga V. Averina
- Vavilov Institute of General Genetics, Russion Academy of Sciences, 119991 Moscow, Russia; (E.U.P.); (M.V.M.); (V.N.D.)
| | - Elena U. Poluektova
- Vavilov Institute of General Genetics, Russion Academy of Sciences, 119991 Moscow, Russia; (E.U.P.); (M.V.M.); (V.N.D.)
| | - Mariya V. Marsova
- Vavilov Institute of General Genetics, Russion Academy of Sciences, 119991 Moscow, Russia; (E.U.P.); (M.V.M.); (V.N.D.)
| | - Valery N. Danilenko
- Vavilov Institute of General Genetics, Russion Academy of Sciences, 119991 Moscow, Russia; (E.U.P.); (M.V.M.); (V.N.D.)
- Institute of Ecology, Peoples’ Friendship University of Russia (RUDN University), 117198 Moscow, Russia
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Bifidobacterium Longum: Protection against Inflammatory Bowel Disease. J Immunol Res 2021; 2021:8030297. [PMID: 34337079 PMCID: PMC8324359 DOI: 10.1155/2021/8030297] [Citation(s) in RCA: 67] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Accepted: 07/10/2021] [Indexed: 02/06/2023] Open
Abstract
The prevalence of inflammatory bowel disease (IBD), which includes ulcerative colitis (UC) and Crohn's disease (CD), increases gradually worldwide in the past decades. IBD is generally associated with the change of the immune system and gut microbiota, and the conventional treatments usually result in some side effects. Bifidobacterium longum, as colonizing bacteria in the intestine, has been demonstrated to be capable of relieving colitis in mice and can be employed as an alternative or auxiliary way for treating IBD. Here, the mechanisms of the Bifidobacterium longum in the treatment of IBD were summarized based on previous cell and animal studies and clinical trials testing bacterial therapies. This review will be served as a basis for future research on IBD treatment.
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