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Huang Y, Wang S, Huang J, Shen Y, Zou L, Liu H. Investigating the Causal Relationship Between Gut Microbiota and Allergic Conjunctivitis: A Two-Sample Mendelian Randomization Study. Ocul Immunol Inflamm 2024:1-10. [PMID: 39353056 DOI: 10.1080/09273948.2024.2388202] [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: 08/07/2023] [Revised: 07/28/2024] [Accepted: 07/30/2024] [Indexed: 10/04/2024]
Abstract
PURPOSE To investigate the causal association between gut microbiota and allergic conjunctivitis. METHODS A two-sample Mendelian randomization (MR) analysis was performed using the summary statistics of gut microbiota (18,340) from MiBio-Gen consortium and allergic conjunctivitis data (n = 218,792) obtained from the IEU Open GWAS project. F-statistics and sensitivity analyses were used to address potential biases and ensure the reliability of our findings. Reverse MR analysis was conducted to assess the possible of reverse causal relationships. RESULTS The inverse variance weighted estimates revealed the protective potential of the phylum Euryarchaeota against allergic conjunctivitis (OR = 0.87, p = 6.17 × 10-4). On the other hand, the genus Christensenellaceae R.7 group (OR = 0.75, p = 2.89 × 10-3), family Peptostreptococcaceae (OR = 0.83, p = 6.22 × 10-3), genus Lachnospiraceae FCS020 group (OR = 0.82, p = 0.02) all showed a suggestive protective association with allergic conjunctivitis. Additionally, sensitivity analysis confirmed the robustness of the above associations. In the reverse MR analysis, no significant causal association was found between gut microbiota and allergic conjunctivitis. CONCLUSION This study has revealed a potential causal correlation between the phylum Euryarchaeota and allergic conjunctivitis, offering new insights to improve prevention and treatment of this condition.
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Affiliation(s)
- Yuanyang Huang
- Department of Ophthalmology, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Shu Wang
- Department of Ophthalmology, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jinfang Huang
- Department of Ophthalmology, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yining Shen
- Department of Ophthalmology, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Leilei Zou
- Department of Ophthalmology, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Hong Liu
- Department of Ophthalmology, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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Wang L, Lv Z. Causal associations among gut microbiota, 1400 plasma metabolites, and asthma: a two-sample Mendelian randomization study. Front Mol Biosci 2024; 11:1370919. [PMID: 39104371 PMCID: PMC11298384 DOI: 10.3389/fmolb.2024.1370919] [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: 01/15/2024] [Accepted: 06/21/2024] [Indexed: 08/07/2024] Open
Abstract
Background Emerging evidence indicates a correlation between imbalances in intestinal microbiota and changes in plasma metabolites in the progression of asthma. However, the causal link between these factors remains unclear. Methods A two-sample Mendelian randomization (MR) study was employed to evaluate the potential causal connection between gut microbiota, plasma metabolites, and asthma susceptibility. Gut microbiota data from expansive genome-wide genotype studies and 16S fecal microbiome datasets were examined by the MiBioGen Alliance. Asthma data were procured from the FinnGen biobank analysis, while comprehensive Genome-Wide Association Studies (GWAS) summary statistics for plasma metabolites were derived from the NHGRI-EBI GWAS Catalog. Fluctuations in intestinal flora and plasma metabolites in asthma patients were evaluated using the weighted mode method. Additionally, pleiotropic and heterogeneity analyses were performed to ascertain the reliability of the findings. Results Upon examining the gut microbiota through MR with the IVW method, alongside tests for heterogeneity and pleiotropy, findings reveal a negative association between the abundance of the Christensenellaceae R.7 group and asthma risk. In contrast, the Bifidobacterium and Prevotella 7 genera exhibit a positive association with asthma risk, indicating they may be potential risk factors (p < 0.05). Furthermore, MR analysis of 1,400 metabolites employing Weighted median, IVW, and Weighted mode methods resulted in p-values below 0.05. Subsequent tests for pleiotropy and heterogeneity showed that the levels of 3,5-dichloro-2,6-dihydroxybenzoic acid have a negative correlation with asthma, whereas the phenylalanine to phosphate ratio has a positive correlation, suggesting their potential as risk factors for asthma (p < 0.05). Conclusion The current Mendelian randomization study provides evidence supporting a potential causal link between specific gut microbiota taxa, plasma metabolites, and asthma. These findings offer novel perspectives for future research and the development of treatment and prevention strategies for asthma.
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Affiliation(s)
- Lizhu Wang
- Guizhou University of Traditional Chinese Medicine, Guiyang, China
| | - Zhe Lv
- Air Force Medical University Tangdu Hospital, Xi’an, China
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Zhang P, Zheng Z, Sun H, Gao T, Xiao X. A review of common influencing factors and possible mechanisms associated with allergic diseases complicating tic disorders in children. Front Pediatr 2024; 12:1360420. [PMID: 38957776 PMCID: PMC11218626 DOI: 10.3389/fped.2024.1360420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Accepted: 05/31/2024] [Indexed: 07/04/2024] Open
Abstract
Over the past few decades, the incidence of childhood allergic diseases has increased globally, and their impact on the affected child extends beyond the allergy itself. There is evidence of an association between childhood allergic diseases and the development of neurological disorders. Several studies have shown a correlation between allergic diseases and tic disorders (TD), and allergic diseases may be an important risk factor for TD. Possible factors influencing the development of these disorders include neurotransmitter imbalance, maternal anxiety or depression, gut microbial disorders, sleep disturbances, maternal allergic status, exposure to tobacco, and environmental factors. Moreover, gut microbial disturbances, altered immunological profiles, and DNA methylation in patients with allergic diseases may be potential mechanisms contributing to the development of TD. An in-depth investigation of the relationship between allergic diseases and TD in children will be important for preventing and treating TD.
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Affiliation(s)
- Panpan Zhang
- Department of Child Health, Dalian Municipal Women and Children’s Medical Center (Group), Dalian, Liaoning, China
- Dalian Medical University, Dalian, Liaoning, China
| | - Zhimin Zheng
- Department of Child Health, Dalian Municipal Women and Children’s Medical Center (Group), Dalian, Liaoning, China
- Dalian Medical University, Dalian, Liaoning, China
| | - Hao Sun
- Department of Child Health, Dalian Municipal Women and Children’s Medical Center (Group), Dalian, Liaoning, China
- Dalian Medical University, Dalian, Liaoning, China
| | - Tieying Gao
- Department of Child Health, Dalian Municipal Women and Children’s Medical Center (Group), Dalian, Liaoning, China
- Dalian Medical University, Dalian, Liaoning, China
| | - Xuwu Xiao
- Department of Child Health, Dalian Municipal Women and Children’s Medical Center (Group), Dalian, Liaoning, China
- Dalian Medical University, Dalian, Liaoning, China
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Zhang S, Fang X, Xu B, Zhou Y, Li F, Gao Y, Luo Y, Yao X, Liu X. Comprehensive analysis of phenotypes and transcriptome characteristics reveal the best atopic dermatitis mouse model induced by MC903. J Dermatol Sci 2024; 114:104-114. [PMID: 38806322 DOI: 10.1016/j.jdermsci.2024.05.003] [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: 01/05/2024] [Revised: 04/01/2024] [Accepted: 05/13/2024] [Indexed: 05/30/2024]
Abstract
BACKGROUND Although several mouse models of exogenous-agent-induced atopic dermatitis (AD) are currently available, the lack of certainty regarding their similarity with human AD has limited their scientific value. Thus, comprehensive evaluation of the characteristics of mouse models and their similarity with human AD is essential. OBJECTIVE To compare six different exogenous-agent-induced AD mouse models and find out the optimum models for study. METHODS Female BALB/c mice underwent induction of AD-like dermatitis by MC903 alone or in combination with ovalbumin (OVA), dinitrofluorobenzene (DNFB) alone or in combination with OVA, OVA alone, or Staphylococcus aureus. Gross phenotype, total immunoglobulin E (IgE) level, histopathological manifestations, and skin lesion transcriptome were analyzed, and metagenomic sequencing of the gut microbiome was performed. RESULTS The DNFB plus OVA model showed the highest disease severity, while the OVA model showed the lowest severity. The MC903 and MC903 plus OVA models showed high expression of T-helper (Th)2- and Th17-related genes; the DNFB and DNFB plus OVA models showed upregulation of Th1-, Th2-, and Th17-related genes; while the S. aureus inoculation model showed more enhanced Th1 and Th17 immune responses. In contrast to the other models, the OVA-induced model showed the lowest expression levels of inflammation-related genes, while the MC903 model shared the largest overlap with human AD profiles. The intestinal microbiota of all groups showed significant differences after modeling. CONCLUSION Each AD mouse model exhibited different characteristics. The MC903 model was the best to recapitulate most features of human AD among these exogenous-agent-induced AD models.
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Affiliation(s)
- Shan Zhang
- Department of Allergy and Rheumatology, Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Hospital for Skin Diseases, Institute of Dermatology, Chinese Academy of Medical Sciences & Peking Union Medical College, Nanjing, China
| | - Xiaokai Fang
- Department of Allergy and Rheumatology, Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Hospital for Skin Diseases, Institute of Dermatology, Chinese Academy of Medical Sciences & Peking Union Medical College, Nanjing, China
| | - Beilei Xu
- Department of Allergy and Rheumatology, Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Hospital for Skin Diseases, Institute of Dermatology, Chinese Academy of Medical Sciences & Peking Union Medical College, Nanjing, China
| | - Yuan Zhou
- Department of Allergy and Rheumatology, Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Hospital for Skin Diseases, Institute of Dermatology, Chinese Academy of Medical Sciences & Peking Union Medical College, Nanjing, China
| | - Fang Li
- Department of Allergy and Rheumatology, Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Hospital for Skin Diseases, Institute of Dermatology, Chinese Academy of Medical Sciences & Peking Union Medical College, Nanjing, China
| | - Yuwen Gao
- Department of Allergy and Rheumatology, Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Hospital for Skin Diseases, Institute of Dermatology, Chinese Academy of Medical Sciences & Peking Union Medical College, Nanjing, China
| | - Yang Luo
- Department of Allergy and Rheumatology, Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Hospital for Skin Diseases, Institute of Dermatology, Chinese Academy of Medical Sciences & Peking Union Medical College, Nanjing, China
| | - Xu Yao
- Department of Allergy and Rheumatology, Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Hospital for Skin Diseases, Institute of Dermatology, Chinese Academy of Medical Sciences & Peking Union Medical College, Nanjing, China.
| | - Xiaochun Liu
- Department of Allergy and Rheumatology, Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Hospital for Skin Diseases, Institute of Dermatology, Chinese Academy of Medical Sciences & Peking Union Medical College, Nanjing, China.
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Shen F, Gao C, Wang M, Ding X, Zhao H, Zhou M, Mao J, Kuai L, Li B, Wang D, Zhang H, Ma X. Therapeutic effects of the Qingre-Qushi recipe on atopic dermatitis through the regulation of gut microbiota and skin inflammation. Heliyon 2024; 10:e26063. [PMID: 38380039 PMCID: PMC10877368 DOI: 10.1016/j.heliyon.2024.e26063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Revised: 02/06/2024] [Accepted: 02/07/2024] [Indexed: 02/22/2024] Open
Abstract
Accumulating evidence has highlighted a strong association between gut microbiota and the occurrence, development, prevention, and treatment of atopic dermatitis (AD). The regulation of gut microbial dysbiosis by oral traditional Chinese medicine (TCM) has garnered significant attention. In the treatment of AD, the TCM formula Qingre-Qushi Recipe (QRQS) has demonstrated clinical efficacy. However, both the therapeutic mechanisms of QRQS and its impact on gut microbiota remain unclear. Thus, our study aimed to assess the efficacy of QRQS and evaluate its influence on the composition and diversity of gut microbiota in AD animal models. First, we investigated the therapeutic effect of QRQS on AD using two animal models: filaggrin-deficient mice (Flaky tail, ft/ft) and MC903-induced AD-like mice. Subsequently, we explored its influence on the composition and diversity of gut microbiota. Our results demonstrated that QRQS treatment ameliorated the symptoms in both ft/ft mice and MC903-induced AD-like mice. It also reduced the levels of serum IgE and pro-inflammatory cytokines, including IL-1β, IL-4, IL-5, IL-9, IL-13, IL-17A, and TNF-α. Furthermore, QRQS remarkably regulated gut microbiota diversity by increasing Lactobacillaceae and decreasing Bacteroidales. The inflammatory factors in peripheral serum of ft/ft mice showed a close correlation with gut microbiota, as determined using the Spearman correlation coefficient. Additionally, PICRUSt analysis revealed an enrichment in ascorbate and aldarate metabolism, fatty acid metabolism and biosynthesis, and propanoate metabolism in the QRQS group compared to the ft/ft group. Finally, we identified liquiritin as the primary active ingredient of QRQS using ultra-high-performance liquid chromatography-high-resolution mass spectrometry (UPLC-HRMS). Our findings revealed that QRQS improved AD-like symptoms and alleviated skin inflammation in ft/ft and MC903-induced mice. This suggests that modulating the gut microbiota may help elucidate its anti-inflammation activation mechanism, highlighting a new therapeutic strategy that targets the intestinal flora to prevent and treat AD.
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Affiliation(s)
- Fang Shen
- Shanghai Skin Disease Hospital, School of Medicine, Tongji University, Shanghai, 200443, China
| | - Chunjie Gao
- Shanghai Skin Disease Hospital, School of Medicine, Tongji University, Shanghai, 200443, China
| | - Mingxia Wang
- Shanghai Skin Disease Hospital, School of Medicine, Tongji University, Shanghai, 200443, China
| | - Xiaojie Ding
- Institute of Dermatology, Shanghai Academy of Traditional Chinese Medicine, Shanghai, 201203, China
- Department of Dermatology, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 200437, China
| | - Hang Zhao
- Institute of Dermatology, Shanghai Academy of Traditional Chinese Medicine, Shanghai, 201203, China
- Department of Dermatology, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 200437, China
| | - Mi Zhou
- Institute of Dermatology, Shanghai Academy of Traditional Chinese Medicine, Shanghai, 201203, China
- Department of Dermatology, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 200437, China
| | - Jingyi Mao
- Department of Dermatology, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
| | - Le Kuai
- Institute of Dermatology, Shanghai Academy of Traditional Chinese Medicine, Shanghai, 201203, China
- Department of Dermatology, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 200437, China
| | - Bin Li
- Shanghai Skin Disease Hospital, School of Medicine, Tongji University, Shanghai, 200443, China
- Institute of Dermatology, Shanghai Academy of Traditional Chinese Medicine, Shanghai, 201203, China
- Institute of Dermatology, School of Medicine, Tongji University, Shanghai, 200443, China
| | - Dongming Wang
- Department of Dermatology, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
| | - Huimin Zhang
- Department of Dermatology, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
| | - Xin Ma
- Shanghai Skin Disease Hospital, School of Medicine, Tongji University, Shanghai, 200443, China
- Department of Dermatology, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
- Department of Dermatology, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 200437, China
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6
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Li J, Zhang C, Tang J, He M, He C, Pu G, Liu L, Sun J. Causal associations between gut microbiota, metabolites and asthma: a two-sample Mendelian randomization study. BMC Pulm Med 2024; 24:72. [PMID: 38326796 PMCID: PMC10848467 DOI: 10.1186/s12890-024-02898-x] [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: 03/20/2023] [Accepted: 02/05/2024] [Indexed: 02/09/2024] Open
Abstract
BACKGROUND While several traditional observational studies have suggested associations between gut microbiota and asthma, these studies are limited by factors such as participant selection bias, confounders, and reverse causality. Therefore, the causal relationship between gut microbiota and asthma remains uncertain. METHODS We performed two-sample bi-directional Mendelian randomization (MR) analysis to investigate the potential causal relationships between gut microbiota and asthma as well as its phenotypes. We also conducted MR analysis to evaluate the causal effect of gut metabolites on asthma. Genetic variants for gut microbiota were obtained from the MiBioGen consortium, GWAS summary statistics for metabolites from the TwinsUK study and KORA study, and GWAS summary statistics for asthma from the FinnGen consortium. The causal associations between gut microbiota, gut metabolites and asthma were examined using inverse variance weighted, maximum likelihood, MR-Egger, weighted median, and weighted model and further validated by MR-Egger intercept test, Cochran's Q test, and "leave-one-out" sensitivity analysis. RESULTS We identified nine gut microbes whose genetically predicted relative abundance causally impacted asthma risk. After FDR correction, significant causal relationships were observed for two of these microbes, namely the class Bacilli (OR = 0.84, 95%CI = 0.76-0.94, p = 1.98 × 10-3) and the order Lactobacillales (OR = 0.83, 95%CI = 0.74-0.94, p = 1.92 × 10-3). Additionally, in a reverse MR analysis, we observed a causal effect of genetically predicted asthma risk on the abundance of nine gut microbes, but these associations were no longer significant after FDR correction. No significant causal effect of gut metabolites was found on asthma. CONCLUSIONS Our study provides insights into the development mechanism of microbiota-mediated asthma, as well as into the prevention and treatment of asthma through targeting specific gut microbiota.
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Affiliation(s)
- Jingli Li
- Department of Pulmonary and Critical Care Medicine, Shaoxing People's Hospital, Shaoxing, 312000, Zhejiang, China
| | - Chunyi Zhang
- Department of Pulmonary and Critical Care Medicine, Shaoxing People's Hospital, Shaoxing, 312000, Zhejiang, China
| | - Jixian Tang
- Department of Pulmonary and Critical Care Medicine, Shaoxing People's Hospital, Shaoxing, 312000, Zhejiang, China
| | - Meng He
- Department of Pulmonary and Critical Care Medicine, Shaoxing People's Hospital, Shaoxing, 312000, Zhejiang, China
| | - Chunxiao He
- Department of Pulmonary and Critical Care Medicine, Shaoxing People's Hospital, Shaoxing, 312000, Zhejiang, China
| | - Guimei Pu
- Department of Pulmonary and Critical Care Medicine, Shaoxing People's Hospital, Shaoxing, 312000, Zhejiang, China
| | - Lingjing Liu
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, Zhejiang, China.
| | - Jian Sun
- Department of Pulmonary and Critical Care Medicine, Shaoxing People's Hospital, Shaoxing, 312000, Zhejiang, China.
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Ryguła I, Pikiewicz W, Grabarek BO, Wójcik M, Kaminiów K. The Role of the Gut Microbiome and Microbial Dysbiosis in Common Skin Diseases. Int J Mol Sci 2024; 25:1984. [PMID: 38396663 PMCID: PMC10889245 DOI: 10.3390/ijms25041984] [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: 01/05/2024] [Revised: 01/28/2024] [Accepted: 02/05/2024] [Indexed: 02/25/2024] Open
Abstract
Dermatoses are an increasingly common problem, particularly in developed countries. The causes of this phenomenon include genetic factors and environmental elements. More and more scientific reports suggest that the gut microbiome, more specifically its dysbiosis, also plays an important role in the induction and progression of diseases, including dermatological diseases. The gut microbiome is recognised as the largest endocrine organ, and has a key function in maintaining human homeostasis. In this review, the authors will take a close look at the link between the gut-skin axis and the pathogenesis of dermatoses such as atopic dermatitis, psoriasis, alopecia areata, and acne. The authors will also focus on the role of probiotics in remodelling the microbiome and the alleviation of dermatoses.
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Affiliation(s)
- Izabella Ryguła
- Faculty of Medical Sciences in Katowice, Medical University of Silesia, 40-752 Katowice, Poland;
| | - Wojciech Pikiewicz
- Collegium Medicum—Faculty of Medicine, WSB University, 41-300 Dabrowa Gornicza, Poland; (W.P.); (B.O.G.); (M.W.)
| | - Beniamin Oskar Grabarek
- Collegium Medicum—Faculty of Medicine, WSB University, 41-300 Dabrowa Gornicza, Poland; (W.P.); (B.O.G.); (M.W.)
| | - Michał Wójcik
- Collegium Medicum—Faculty of Medicine, WSB University, 41-300 Dabrowa Gornicza, Poland; (W.P.); (B.O.G.); (M.W.)
| | - Konrad Kaminiów
- Collegium Medicum—Faculty of Medicine, WSB University, 41-300 Dabrowa Gornicza, Poland; (W.P.); (B.O.G.); (M.W.)
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8
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Huang Y, Chen L, Liu F, Xiong X, Ouyang Y, Deng Y. Tryptophan, an important link in regulating the complex network of skin immunology response in atopic dermatitis. Front Immunol 2024; 14:1300378. [PMID: 38318507 PMCID: PMC10839033 DOI: 10.3389/fimmu.2023.1300378] [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: 10/05/2023] [Accepted: 12/31/2023] [Indexed: 02/07/2024] Open
Abstract
Atopic dermatitis (AD) is a common chronic relapsing inflammatory skin disease, of which the pathogenesis is a complex interplay between genetics and environment. Although the exact mechanisms of the disease pathogenesis remain unclear, the immune dysregulation primarily involving the Th2 inflammatory pathway and accompanied with an imbalance of multiple immune cells is considered as one of the critical etiologies of AD. Tryptophan metabolism has long been firmly established as a key regulator of immune cells and then affect the occurrence and development of many immune and inflammatory diseases. But the relationship between tryptophan metabolism and the pathogenesis of AD has not been profoundly discussed throughout the literatures. Therefore, this review is conducted to discuss the relationship between tryptophan metabolism and the complex network of skin inflammatory response in AD, which is important to elucidate its complex pathophysiological mechanisms, and then lead to the development of new therapeutic strategies and drugs for the treatment of this frequently relapsing disease.
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Affiliation(s)
- Yaxin Huang
- Department of Dermatology & Sexually Transmitted Disease (STD), the Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China
| | - Lingna Chen
- Department of Dermatology & Sexually Transmitted Disease (STD), the Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China
| | - Fuming Liu
- Department of Dermatology & Sexually Transmitted Disease (STD), the Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China
| | - Xia Xiong
- Department of Dermatology & Sexually Transmitted Disease (STD), the Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China
| | - Yongliang Ouyang
- Department of Dermatology & Sexually Transmitted Disease (STD), Chengdu First People’s Hospital, Chengdu, Sichuan, China
- Health Management Center, Luzhou People’s Hospital, Luzhou, China
| | - Yongqiong Deng
- Department of Dermatology & Sexually Transmitted Disease (STD), the Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China
- Department of Dermatology & Sexually Transmitted Disease (STD), Chengdu First People’s Hospital, Chengdu, Sichuan, China
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9
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Ignatyeva O, Tolyneva D, Kovalyov A, Matkava L, Terekhov M, Kashtanova D, Zagainova A, Ivanov M, Yudin V, Makarov V, Keskinov A, Kraevoy S, Yudin S. Christensenella minuta, a new candidate next-generation probiotic: current evidence and future trajectories. Front Microbiol 2024; 14:1241259. [PMID: 38274765 PMCID: PMC10808311 DOI: 10.3389/fmicb.2023.1241259] [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: 07/17/2023] [Accepted: 12/26/2023] [Indexed: 01/27/2024] Open
Abstract
Background As the field of probiotic research continues to expand, new beneficial strains are being discovered. The Christensenellaceae family and its newly described member, Christensenella minuta, have been shown to offer great health benefits. We aimed to extensively review the existing literature on these microorganisms to highlight the advantages of their use as probiotics and address some of the most challenging aspects of their commercial production and potential solutions. Methods We applied a simple search algorithm using the key words "Christensenellaceae" and "Christensenella minuta" to find all articles reporting the biotherapeutic effects of these microorganisms. Only articles reporting evidence-based results were reviewed. Results The review showed that Christensenella minuta has demonstrated numerous beneficial properties and a wider range of uses than previously thought. Moreover, it has been shown to be oxygen-tolerant, which is an immense advantage in the manufacturing and production of Christensenella minuta-based biotherapeutics. The results suggest that Christensenellaceae and Christensenella munita specifically can play a crucial role in maintaining a healthy gut microbiome. Furthermore, Christensenellaceae have been associated with weight management. Preliminary studies suggest that this probiotic strain could have a positive impact on metabolic disorders like diabetes and obesity, as well as inflammatory bowel disease. Conclusion Christensenellaceae and Christensenella munita specifically offer immense health benefits and could be used in the management and therapy of a wide range of health conditions. In addition to the impressive biotherapeutic effect, Christensenella munita is oxygen-tolerant, which facilitates commercial production and storage.
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Affiliation(s)
- Olga Ignatyeva
- Centre for Strategic Planning and Management of Biomedical Health Risks, Federal Biomedical Agency, Moscow, Russia
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Mao R, Yu Q, Li J. The causal relationship between gut microbiota and inflammatory dermatoses: a Mendelian randomization study. Front Immunol 2023; 14:1231848. [PMID: 37828993 PMCID: PMC10565349 DOI: 10.3389/fimmu.2023.1231848] [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: 05/31/2023] [Accepted: 09/12/2023] [Indexed: 10/14/2023] Open
Abstract
Background Observational studies have shown that gut microbiota is closely associated with inflammatory dermatoses such as psoriasis, rosacea, and atopic dermatitis (AD). However, the causal relationship between gut microbiota and inflammatory dermatosis remains unclear. Methods Based on Maximum Likelihood (ML), MR-Egger regression, Inverse Variance Weighted (IVW), MR Pleiotropy RESidual Sum and Outlier (MR-PRESSO), Weighted Mode, and Weighted Median Estimator (WME) methods, we performed a bidirectional two-sample Mendelian randomization (MR) analysis to explore the causal relationship between gut microbiota and inflammatory dermatosis. The genome-wide association study (GWAS) summary data of gut microbiota came from the MiBioGen consortium, while the GWAS summary data of inflammatory dermatosis (including psoriasis, AD, rosacea, vitiligo, acne, and eczema) came from the FinnGen consortium and IEU Open GWAS project. Cochran's IVW Q test tested the heterogeneity among instrumental variables (IVs). The horizontal pleiotropy was tested by MR-Egger regression intercept analysis and MR-PRESSO analysis. Results Eventually, the results indicated that 5, 16, 17, 11, 15, and 12 gut microbiota had significant causal effects on psoriasis, rosacea, AD, vitiligo, acne, and eczema, respectively, including 42 protective and 34 risk causal relationships. Especially, Lactobacilli and Bifidobacteria at the Family and Genus Level, as common probiotics, were identified as protective factors for the corresponding inflammatory dermatoses. The results of reverse MR analysis suggested a bidirectional causal effect between AD and genus Eubacterium brachy group, vitiligo and genus Ruminococcaceae UCG004. The causal relationship between gut microbiota and psoriasis, rosacea, acne, and eczema is unidirectional. There was no significant heterogeneity among these IVs. In conclusion, this bidirectional two-sample MR study identified 76 causal relationships between the gut microbiome and six inflammatory dermatoses, which may be helpful for the clinical prevention and treatment of inflammatory dermatoses.
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Affiliation(s)
- Rui Mao
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, Hunan, China
- Hunan Key Laboratory of Aging Biology, Xiangya Hospital, Central South University, Changsha, Hunan, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Qinyang Yu
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, Hunan, China
- Hunan Key Laboratory of Aging Biology, Xiangya Hospital, Central South University, Changsha, Hunan, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Ji Li
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, Hunan, China
- Hunan Key Laboratory of Aging Biology, Xiangya Hospital, Central South University, Changsha, Hunan, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
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11
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Su J, Gu X, Li J, Tao J, Kang X, Wu B, Shan S, Ang X, Chen X, Xiao Y, Shen M. Atopic dermatitis is associated with abnormal stool form: a population-based cross-sectional study in college students. Arch Dermatol Res 2023; 315:2057-2064. [PMID: 36917250 DOI: 10.1007/s00403-023-02567-9] [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: 08/10/2022] [Revised: 11/28/2022] [Accepted: 02/01/2023] [Indexed: 03/16/2023]
Abstract
BACKGROUND Atopic dermatitis (AD) is a chronic inflammatory skin disorder. Bristol Stool Form Scale (BSFS) is a widely used stool scoring method that could indirectly reflect intestinal function. OBJECTIVES To evaluate the associations of AD with BSFS. METHODS This was a population-based cross-sectional study of freshmen in five universities of China. AD diagnosis was performed by dermatologists according to the guideline from the American Academy of Dermatology. BSFS and covariates were collected through an online questionnaire survey. Chronic itch scores were assessed by the numeric rating scales and grouped into quartiles (Q). Mixed logistic regression models were used. Subgroup analysis was conducted by covariates. P value < 0.05 was considered statistically significant. RESULTS The prevalence of hard stools and loose stools were 8.9% and 7.6%, respectively (20,049 participants). After adjusting covariates, AD was significantly associated with hard stools (OR = 1.38, P < 0.001) and loose stools (OR = 1.24, P = 0.037). In subgroup analysis of hard stool, a stronger effect was observed in intake of milk (> 3 days/week), yogurt (> 3 days/week), pork (< 1 day/week), and higher itch scores (Q4). CONCLUSION This study found the relationship between AD and abnormal stool forms, and the association with hard stools might be modified by dietary factor.
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Affiliation(s)
- Juan Su
- Department of Dermatology, Hunan Key Laboratory of Skin Cancer and Psoriasis, Hunan Engineering Research Center of Skin Health and Disease, Xiangya Hospital, Central South University, 110 Xiangya Road, Changsha, 410008, Hunan, China
- National Engineering Research Center of Personalized Diagnostic and Therapeutic Technology, Changsha, China
| | - Xiaoyu Gu
- Department of Dermatology, Hunan Key Laboratory of Skin Cancer and Psoriasis, Hunan Engineering Research Center of Skin Health and Disease, Xiangya Hospital, Central South University, 110 Xiangya Road, Changsha, 410008, Hunan, China
- National Engineering Research Center of Personalized Diagnostic and Therapeutic Technology, Changsha, China
| | - Ji Li
- Department of Dermatology, Hunan Key Laboratory of Skin Cancer and Psoriasis, Hunan Engineering Research Center of Skin Health and Disease, Xiangya Hospital, Central South University, 110 Xiangya Road, Changsha, 410008, Hunan, China
| | - Juan Tao
- Department of Dermatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiaojing Kang
- Department of Dermatology, People's Hospital of Xinjiang Uygur Autonomous Region, Urumchi, Xinjiang, China
| | - Bin Wu
- Department of Dermatology, The Affiliated People's Hospital of Inner Mongolia Medical University, Hohhot, China
| | - Shijun Shan
- Department of Dermatology, Xiang'an Hospital, Xiamen University, Xiamen, China
| | - Xiaohui Ang
- Department of Dermatology, Zhongshan Hospital, Xiamen University, Xiamen, China
| | - Xiang Chen
- Department of Dermatology, Hunan Key Laboratory of Skin Cancer and Psoriasis, Hunan Engineering Research Center of Skin Health and Disease, Xiangya Hospital, Central South University, 110 Xiangya Road, Changsha, 410008, Hunan, China.
- National Engineering Research Center of Personalized Diagnostic and Therapeutic Technology, Changsha, China.
| | - Yi Xiao
- Department of Dermatology, Hunan Key Laboratory of Skin Cancer and Psoriasis, Hunan Engineering Research Center of Skin Health and Disease, Xiangya Hospital, Central South University, 110 Xiangya Road, Changsha, 410008, Hunan, China.
| | - Minxue Shen
- Department of Dermatology, Hunan Key Laboratory of Skin Cancer and Psoriasis, Hunan Engineering Research Center of Skin Health and Disease, Xiangya Hospital, Central South University, 110 Xiangya Road, Changsha, 410008, Hunan, China.
- National Engineering Research Center of Personalized Diagnostic and Therapeutic Technology, Changsha, China.
- Department of Social Medicine and Health Management, Xiangya School of Public Health, Central South University, Changsha, China.
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12
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Li R, Guo Q, Zhao J, Kang W, Lu R, Long Z, Huang L, Chen Y, Zhao A, Wu J, Yin Y, Li S. Assessing causal relationships between gut microbiota and asthma: evidence from two sample Mendelian randomization analysis. Front Immunol 2023; 14:1148684. [PMID: 37539057 PMCID: PMC10394653 DOI: 10.3389/fimmu.2023.1148684] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Accepted: 06/28/2023] [Indexed: 08/05/2023] Open
Abstract
Background Accumulating evidence has suggested that gut microbiota dysbiosis is commonly observed in asthmatics. However, it remains unclear whether dysbiosis is a cause or consequence of asthma. We aimed to examine the genetic causal relationships of gut microbiota with asthma and its three phenotypes, including adult-onset asthma, childhood-onset asthma, and moderate-severe asthma. Methods To elucidate the causality of gut microbiota with asthma, we applied two sample Mendelian randomization (MR) based on the largest publicly available genome-wide association study (GWAS) summary statistics. Inverse variance weighting meta-analysis (IVW) was used to obtain the main estimates; and Weighted median, MR-Egger, Robust Adjusted Profile Score (MR-RAPS), Maximum likelihood method (ML), and MR pleiotropy residual sum and outlier (MR-PRESSO) methods were applied in sensitivity analyses. Finally, a reverse MR analysis was performed to evaluate the possibility of reverse causation. Results In the absence of heterogeneity and horizontal pleiotropy, the IVW method revealed that genetically predicted Barnesiella and RuminococcaceaeUCG014 were positively correlated with the risk of asthma, while the association between genetically predicted CandidatusSoleaferrea and asthma was negative. And for the three phenotypes of asthma, genetically predicted Akkermansia reduced the risk of adult-onset asthma, Collinsella and RuminococcaceaeUCG014 increased the risk of childhood-onset asthma, and FamilyXIIIAD3011group, Eisenbergiella, and Ruminiclostridium6 were correlated with the risk of moderate-severe asthma (all P<0.05). The reverse MR analysis didn't find evidence supporting the reverse causality from asthma and its three phenotypes to the gut microbiota genus. Conclusion This study suggested that microbial genera were causally associated with asthma as well as its three phenotypes. The findings deepened our understanding of the role of gut microbiota in the pathology of asthma, which emphasizes the potential of opening up a new vista for the prevention and diagnosis of asthma.
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Affiliation(s)
- Rong Li
- Ministry of Education-Shanghai Key Laboratory of Children’s Environmental Health, School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Qi Guo
- School Health Department, Shanghai Center for Disease Control and Prevention, Shanghai, China
| | - Jian Zhao
- Ministry of Education-Shanghai Key Laboratory of Children’s Environmental Health, School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Wenhui Kang
- Ministry of Education-Shanghai Key Laboratory of Children’s Environmental Health, School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Ruoyu Lu
- Ministry of Education-Shanghai Key Laboratory of Children’s Environmental Health, School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Zichong Long
- Ministry of Education-Shanghai Key Laboratory of Children’s Environmental Health, School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Lili Huang
- Ministry of Education-Shanghai Key Laboratory of Children’s Environmental Health, School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yiting Chen
- Ministry of Education-Shanghai Key Laboratory of Children’s Environmental Health, School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Anda Zhao
- Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jinhong Wu
- Shanghai Children’s Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yong Yin
- Shanghai Children’s Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Shenghui Li
- Ministry of Education-Shanghai Key Laboratory of Children’s Environmental Health, School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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13
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He R, Wang S, Yang S, Liu R, Nan N, Lu X, Gong M, Li J. Shaoyao-Gancao-Tang regulates the T-helper-type 1/T-helper-type 2 ratio in the lung and gut and alters gut microbiota in rats with ovalbumin-induced asthma. JOURNAL OF ETHNOPHARMACOLOGY 2023; 309:116300. [PMID: 36868437 DOI: 10.1016/j.jep.2023.116300] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 02/14/2023] [Accepted: 02/16/2023] [Indexed: 06/18/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Shaoyao-Gancao Tang (SGT) is a traditional Chinese medicine formulation. It has been used to treat kinds of pain and to alleviate asthma in clinic. However, the mechanism of action is not known. AIM OF THE STUDY To investigate the anti-asthma effect of SGT involving modulation of the T-helper type 1 (Th1) Th1/Th2 ratio in the gut-lung axis and alteration of the gut microbiota (GM) in rats with ovalbumin (OVA)-induced asthma. MATERIALS AND METHODS The main constituents of SGT were analyzed by high-performance liquid chromatography (HPLC). A model of asthma was established in rats by OVA-induced allergen challenge. Rats suffering from asthma (RSAs) were treated with SGT (2.5, 5.0 and 10.0 g/kg), dexamethasone (1 mg/kg) or physiologic saline for 4 weeks. The level of immunoglobulin (Ig)E in bronchoalveolar lavage fluid (BALF) and serum was determined by enzyme-linked immunosorbent assay. Histology of lung and colon tissues was investigated using staining (hematoxylin and eosin and periodic acid-Schiff). The Th1/Th2 ratio and levels of cytokines (interferon (IFN)-γ and interleukin (IL)-4) in the lung and colon were detected by immunohistochemistry. The GM in fresh feces was analyzed by 16 S rRNA gene sequencing. RESULTS Twelve main constituents (gallic acid, albiflorin, paeoniflorin, liquiritin apioside, liquiritin, benzoic acid, isoliquiritin apioside, isoliquiritin, liquiritigenin, glycyrrhizic acid, isoliquiritigenin and glycyrrhetinic acid) of SGT were simultaneously determined by HPLC. SGT treatment (5.0 and 10.0 g/kg) was found to reduce the IgE level (a vital marker of hyper-responsiveness) in BALF and serum, improve typical morphological changes (inflammatory-cell infiltration and goblet cell metaplasia) in the lung and colon, alleviate airway remodeling (including bronchiostenosis and basement membrane-thickening) in the lung, significantly decrease the IL-4 level and increase the IFN-γ level in the lung and colon, which led to restoration of the IFN-γ/IL-4 ratio. The dysbiosis and dysfunction of GM in RSAs were modulated by SGT. The abundance of bacteria of the genera Ethanoligenens and Harryflintia was increased in RSAs and was decreased upon SGT treatment. The abundance of Family_XIII_AD3011_group was decreased in RSAs and increased upon SGT treatment. Moreover, SGT therapy increased the abundance of bacteria of the genera Ruminococcaceae_UCG-005 and Candidatus_Sacchrimonas, and decreased that of Ruminococcus_2 and Alistipes. CONCLUSIONS SGT ameliorated rats with OVA-induced asthma via regulation of the Th1/Th2 ratio in the lung and gut, and modulated the GM.
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Affiliation(s)
- Rui He
- Beijing Key Laboratory of Traditional Chinese Medicine Collateral Disease Theory Research, School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China.
| | - Sihui Wang
- Beijing Key Laboratory of Traditional Chinese Medicine Collateral Disease Theory Research, School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China; Beijing Shijitan Hospital, Capital Medical University, Beijing, 100038, China.
| | - Shengxi Yang
- Beijing Key Laboratory of Traditional Chinese Medicine Collateral Disease Theory Research, School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China.
| | - Renhui Liu
- Beijing Key Laboratory of Traditional Chinese Medicine Collateral Disease Theory Research, School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China.
| | - Nan Nan
- Beijing Key Laboratory of Traditional Chinese Medicine Collateral Disease Theory Research, School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China.
| | - Xuran Lu
- Beijing Key Laboratory of Traditional Chinese Medicine Collateral Disease Theory Research, School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China.
| | - Muxin Gong
- Beijing Key Laboratory of Traditional Chinese Medicine Collateral Disease Theory Research, School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China.
| | - Jing Li
- Beijing Key Laboratory of Traditional Chinese Medicine Collateral Disease Theory Research, School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China.
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14
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De Almeida CV, Antiga E, Lulli M. Oral and Topical Probiotics and Postbiotics in Skincare and Dermatological Therapy: A Concise Review. Microorganisms 2023; 11:1420. [PMID: 37374920 DOI: 10.3390/microorganisms11061420] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Revised: 05/25/2023] [Accepted: 05/25/2023] [Indexed: 06/29/2023] Open
Abstract
The skin microbiota is a pivotal contributor to the maintenance of skin homeostasis by protecting it from harmful pathogens and regulating the immune system. An imbalance in the skin microbiota can lead to pathological conditions such as eczema, psoriasis, and acne. The balance of the skin microbiota components can be disrupted by different elements and dynamics such as changes in pH levels, exposure to environmental toxins, and the use of certain skincare products. Some research suggests that certain probiotic strains and their metabolites (postbiotics) may provide benefits such as improving the skin barrier function, reducing inflammation, and improving the appearance of acne-prone or eczema-prone skin. Consequently, in recent years probiotics and postbiotics have become a popular ingredient in skincare products. Moreover, it was demonstrated that skin health can be influenced by the skin-gut axis, and imbalances in the gut microbiome caused by poor diet, stress, or the use of antibiotics can lead to skin conditions. In this way, products that improve gut microbiota balance have been gaining attention from cosmetic and pharmaceutical companies. The present review will focus on the crosstalk between the SM and the host, and its effects on health and diseases.
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Affiliation(s)
| | - Emiliano Antiga
- Department of Health Sciences, Section of Dermatology, University of Florence, 50139 Florence, Italy
| | - Matteo Lulli
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Florence, 50134 Florence, Italy
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15
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Huang L, Pan G, Feng Y, Fan Z, Ma K, Wang R, Wang G, Huang G, Huang S, Hou Y, Han M, Xie L, Ma Y. Microbial network signatures of early colonizers in infants with eczema. IMETA 2023; 2:e90. [PMID: 38868421 PMCID: PMC10989766 DOI: 10.1002/imt2.90] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 01/06/2023] [Accepted: 01/21/2023] [Indexed: 06/14/2024]
Abstract
In this longitudinal cohort study, our results demonstrated that there are rhythmic changes in gut microbial network signatures in early life, and healthy infants adopt more complex and stable network structure in their gut microbiota than that of the infants with eczema.
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Affiliation(s)
- Liujing Huang
- Obstetrics and Gynecology Medical Center, Zhujiang HospitalSouthern Medical UniversityGuangzhouChina
- Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, State Key Laboratory of Applied Microbiology Southern China, Institute of MicrobiologyGuangdong Academy of SciencesGuangzhouChina
| | - Guihua Pan
- Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, State Key Laboratory of Applied Microbiology Southern China, Institute of MicrobiologyGuangdong Academy of SciencesGuangzhouChina
| | - Yifei Feng
- Obstetrics and Gynecology Medical Center, Zhujiang HospitalSouthern Medical UniversityGuangzhouChina
| | - Zijing Fan
- Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, State Key Laboratory of Applied Microbiology Southern China, Institute of MicrobiologyGuangdong Academy of SciencesGuangzhouChina
- School of Public HealthXinxiang Medical UniversityXinxiangChina
| | - Kai Ma
- Jiangsu New‐bio Biotechnology Co., Ltd.JiangyinChina
| | - Runxin Wang
- Jiangsu New‐bio Biotechnology Co., Ltd.JiangyinChina
| | | | - Guangye Huang
- Obstetrics and Gynecology Medical Center, Zhujiang HospitalSouthern Medical UniversityGuangzhouChina
| | - Sixia Huang
- Obstetrics and Gynecology Medical Center, Zhujiang HospitalSouthern Medical UniversityGuangzhouChina
| | - Yuhui Hou
- Obstetrics and Gynecology Medical Center, Zhujiang HospitalSouthern Medical UniversityGuangzhouChina
| | - Mulan Han
- Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, State Key Laboratory of Applied Microbiology Southern China, Institute of MicrobiologyGuangdong Academy of SciencesGuangzhouChina
| | - Liwei Xie
- Obstetrics and Gynecology Medical Center, Zhujiang HospitalSouthern Medical UniversityGuangzhouChina
- Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, State Key Laboratory of Applied Microbiology Southern China, Institute of MicrobiologyGuangdong Academy of SciencesGuangzhouChina
- School of Public HealthXinxiang Medical UniversityXinxiangChina
| | - Ying Ma
- Obstetrics and Gynecology Medical Center, Zhujiang HospitalSouthern Medical UniversityGuangzhouChina
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16
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Liang Y, Xie R, Xiong X, Hu Z, Mao X, Wang X, Zhang J, Sun P, Yue Z, Wang W, Zhang G. Alterations of nasal microbiome in eosinophilic chronic rhinosinusitis. J Allergy Clin Immunol 2023; 151:1286-1295.e2. [PMID: 36736796 DOI: 10.1016/j.jaci.2022.11.031] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Revised: 10/16/2022] [Accepted: 11/04/2022] [Indexed: 02/04/2023]
Abstract
BACKGROUND Exposure to microbes may be important in the development of chronic rhinosinusitis (CRS). Dysbiosis of the nasal microbiome is considered to be related to CRS with nasal polyps (CRSwNP). The link between the nasal microbiota and eosinophilic CRSwNP (eCRSwNP) has rarely been studied. OBJECTIVE The aim of this study was to rigorously characterize nasal dysbiosis in a cohort of patients with eCRSwNP and compare the nasal microbiomes of these patients with those of healthy controls (HCs). METHODS We performed a cross-sectional study of 34 patients with eCRSwNP, 10 patients without CRSwNP, and 44 HCs by using 16S rRNA gene sequencing. An independent cohort of 14 patients with eCRSwNP, 9 patients without CRSwNP, and 11 HCs was used to validate the results. RESULTS Compared with the nasal microbiome of healthy controls, the nasal microbiome of patients with eCRSwNP was characterized by higher α-diversity (Shannon and Chao1 index) and a distinct composition of microbes. Notably, the distinct differences in microbial composition between patients with eCRSwNP and HCs were significantly correlated with eCRSwNP disease status. Furthermore, in a diagnostic model generated by using these differences, a combination of 15 genera could be used to distinguish patients with eCRSwNP from HCs, with an area under the curve of approximately 0.8 in both the exploration and validation cohorts. CONCLUSION Our study establishes the compositional alterations in the nasal microbiome in eCRSwNP and suggests the potential for using the nasal microbiota as a noninvasive predictive classifier for the diagnosis of eCRSwNP.
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Affiliation(s)
- Yibo Liang
- Department of Otorhinolaryngology Head and Neck Surgery, Tianjin First Central Hospital, Tianjin, China; Institute of Otolaryngology of Tianjin, Tianjin, China; Key Laboratory of Auditory Speech and Balance Medicine, Tianjin; Key Medical Discipline of Tianjin (Otolaryngology), Tianjin, China; Quality Control Centre of Otolaryngology, Tianjin, China
| | - Runxiang Xie
- Department of Gastroenterology and Hepatology, General Hospital, Tianjin Medical University, Tianjin Institute of Digestive Diseases, Tianjin Key Laboratory of Digestive Diseases, Tianjin, China
| | - Xin Xiong
- Department of Otorhinolaryngology Head and Neck Surgery, Tianjin First Central Hospital, Tianjin, China; Institute of Otolaryngology of Tianjin, Tianjin, China; Key Laboratory of Auditory Speech and Balance Medicine, Tianjin; Key Medical Discipline of Tianjin (Otolaryngology), Tianjin, China; Quality Control Centre of Otolaryngology, Tianjin, China
| | - Zhanjun Hu
- Department of Pathology, Tianjin First Central Hospital, Tianjin, China
| | - Xiang Mao
- Department of Otorhinolaryngology Head and Neck Surgery, Tianjin First Central Hospital, Tianjin, China; Institute of Otolaryngology of Tianjin, Tianjin, China; Key Laboratory of Auditory Speech and Balance Medicine, Tianjin; Key Medical Discipline of Tianjin (Otolaryngology), Tianjin, China; Quality Control Centre of Otolaryngology, Tianjin, China
| | - Xiaoyu Wang
- Department of Otorhinolaryngology Head and Neck Surgery, Tianjin First Central Hospital, Tianjin, China; Institute of Otolaryngology of Tianjin, Tianjin, China; Key Laboratory of Auditory Speech and Balance Medicine, Tianjin; Key Medical Discipline of Tianjin (Otolaryngology), Tianjin, China; Quality Control Centre of Otolaryngology, Tianjin, China
| | - Jinmei Zhang
- Department of Otorhinolaryngology Head and Neck Surgery, Tianjin First Central Hospital, Tianjin, China; Institute of Otolaryngology of Tianjin, Tianjin, China; Key Laboratory of Auditory Speech and Balance Medicine, Tianjin; Key Medical Discipline of Tianjin (Otolaryngology), Tianjin, China; Quality Control Centre of Otolaryngology, Tianjin, China
| | - Peiyong Sun
- Department of Otorhinolaryngology Head and Neck Surgery, Tianjin First Central Hospital, Tianjin, China; Institute of Otolaryngology of Tianjin, Tianjin, China; Key Laboratory of Auditory Speech and Balance Medicine, Tianjin; Key Medical Discipline of Tianjin (Otolaryngology), Tianjin, China; Quality Control Centre of Otolaryngology, Tianjin, China
| | - Zhenzhong Yue
- Department of Otorhinolaryngology Head and Neck Surgery, Tianjin First Central Hospital, Tianjin, China; Institute of Otolaryngology of Tianjin, Tianjin, China; Key Laboratory of Auditory Speech and Balance Medicine, Tianjin; Key Medical Discipline of Tianjin (Otolaryngology), Tianjin, China; Quality Control Centre of Otolaryngology, Tianjin, China
| | - Wei Wang
- Department of Otorhinolaryngology Head and Neck Surgery, Tianjin First Central Hospital, Tianjin, China; Institute of Otolaryngology of Tianjin, Tianjin, China; Key Laboratory of Auditory Speech and Balance Medicine, Tianjin; Key Medical Discipline of Tianjin (Otolaryngology), Tianjin, China; Quality Control Centre of Otolaryngology, Tianjin, China
| | - Guimin Zhang
- Department of Otorhinolaryngology Head and Neck Surgery, Tianjin First Central Hospital, Tianjin, China; Institute of Otolaryngology of Tianjin, Tianjin, China; Key Laboratory of Auditory Speech and Balance Medicine, Tianjin; Key Medical Discipline of Tianjin (Otolaryngology), Tianjin, China; Quality Control Centre of Otolaryngology, Tianjin, China.
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17
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Schuler CF, Billi AC, Maverakis E, Tsoi LC, Gudjonsson JE. Novel insights into atopic dermatitis. J Allergy Clin Immunol 2023; 151:1145-1154. [PMID: 36428114 PMCID: PMC10164702 DOI: 10.1016/j.jaci.2022.10.023] [Citation(s) in RCA: 48] [Impact Index Per Article: 48.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 10/20/2022] [Accepted: 10/24/2022] [Indexed: 11/23/2022]
Abstract
Recent research into the pathophysiology and treatment of atopic dermatitis (AD) has shown notable progress. An increasing number of aspects of the immune system are being implicated in AD, including the epithelial barrier, TH2 cytokines, and mast cells. Major advances in therapeutics were made in biologic cytokine and receptor antagonists and among Janus kinase inhibitors. We focus on these areas and address new insights into AD epidemiology, biomarkers, endotypes, prevention, and comorbidities. Going forward, we expect future mechanistic insights and therapeutic advances to broaden physicians' ability to diagnose and manage AD patients, and perhaps to find a cure for this chronic condition.
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Affiliation(s)
- Charles F Schuler
- Division of Allergy and Clinical Immunology, Department of Internal Medicine, Michigan Medicine, University of Michigan, Ann Arbor, Mich; Mary H. Weiser Food Allergy Center, University of Michigan, Ann Arbor, Mich
| | - Allison C Billi
- Department of Dermatology, Michigan Medicine, University of Michigan, Ann Arbor, Mich
| | - Emanual Maverakis
- Department of Dermatology, University of California-Davis, Sacramento, Calif
| | - Lam C Tsoi
- Department of Dermatology, Michigan Medicine, University of Michigan, Ann Arbor, Mich
| | - Johann E Gudjonsson
- Department of Dermatology, Michigan Medicine, University of Michigan, Ann Arbor, Mich.
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18
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Mao JH, Zhang K, He YF, Liu J, Shao YH, Tu ZC. Molecular structure, IgE binding capacity and gut microbiota of ovalbumin conjugated to fructose and galactose:A comparative study. Int J Biol Macromol 2023; 234:123640. [PMID: 36801289 DOI: 10.1016/j.ijbiomac.2023.123640] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2022] [Revised: 01/16/2023] [Accepted: 02/07/2023] [Indexed: 02/18/2023]
Abstract
Ovalbumin (OVA) was modified by fructose (Fru) and galactose (Gal) to study the structure, IgG/IgE binding capacity and effects on human intestinal microbiota of the conjugated products. Compared with OVA-Fru, OVA-Gal has a lower IgG/IgE binding capacity. The reduction of OVA is not only associated with the glycation of R84, K92, K206, K263, K322 and R381 in the linear epitopes, but also with conformational epitope changes, manifested as secondary and tertiary structural changes caused by Gal glycation. In addition, OVA-Gal could alter the structure and abundance of gut microbiota at phylum, family, and genus levels and restore the abundance of bacteria associated with allergenicity, such as Barnesiella, Christensenellaceae_R-7_group, and Collinsela, thereby reducing allergic reactions. These results indicate that OVA-Gal glycation can reduce the IgE binding capacity of OVA and change the structure of human intestinal microbiota. Therefore, Gal glycation may be a potential method to reduce protein allergenicity.
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Affiliation(s)
- Ji-Hua Mao
- National R&D Center for Freshwater Fish Processing, College of Chemistry and Chemical Engineering, College of Life Science, Jiangxi Normal University, Nanchang, Jiangxi 330022, China
| | - Kai Zhang
- Jiangxi Cancer Hospital, Nanchang, Jiangxi 330049, China
| | - Ying-Fei He
- National R&D Center for Freshwater Fish Processing, College of Chemistry and Chemical Engineering, College of Life Science, Jiangxi Normal University, Nanchang, Jiangxi 330022, China
| | - Jun Liu
- National R&D Center for Freshwater Fish Processing, College of Chemistry and Chemical Engineering, College of Life Science, Jiangxi Normal University, Nanchang, Jiangxi 330022, China
| | - Yan-Hong Shao
- National R&D Center for Freshwater Fish Processing, College of Chemistry and Chemical Engineering, College of Life Science, Jiangxi Normal University, Nanchang, Jiangxi 330022, China.
| | - Zong-Cai Tu
- National R&D Center for Freshwater Fish Processing, College of Chemistry and Chemical Engineering, College of Life Science, Jiangxi Normal University, Nanchang, Jiangxi 330022, China; State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, Jiangxi 330047, China.
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Jiang X, Liu Z, Ma Y, Miao L, Zhao K, Wang D, Wang M, Ruan H, Xu F, Zhou Q, Xu S. Fecal microbiota transplantation affects the recovery of AD-skin lesions and enhances gut microbiota homeostasis. Int Immunopharmacol 2023; 118:110005. [PMID: 36924566 DOI: 10.1016/j.intimp.2023.110005] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 02/21/2023] [Accepted: 03/06/2023] [Indexed: 03/15/2023]
Abstract
BACKGROUND Accumulating evidence has shown that gut microbiota plays a key role in the progression of atopic dermatitis (AD). Fecal microbiota transplantation (FMT), as an effective method to restore gut microbiota homeostasis, has been successfully applied for treating many inflammatory diseases. However, the therapeutic effect of FMT on AD remains unclear. The following study examined the effect and mechanism of FMT on AD-skin lesions in an AD mouse model. METHODS In this study, we exposed the shaved back skin of BALB/c mice to calcipotriol (MC903) to induce AD model. Mice were then treated with FMT, which was performed with gut microbiota from healthy mice. The gut microbiota of treated mice was tracked by 16S rRNA gene sequencing. Mice skin tissues were examined by histopathology and inflammatory cytokines change in serum by ELISA. RESULTS FMT had a faster trend on the reversion of the increases in skin epidermal layer thicknesses and suppressed some of the representative inflammatory cytokines. The gut microbial community in the natural recovery process varied significantly in the FMT group at day 7 (ANOSIM P = 0.0229, r = 0.2593). Notably, FMT had a long-lasting and beneficial impact on the gut microbial compositions of AD mice by increasing the ratio of Firmicutes to Bacteroidetes and the amount of butyric-producing bacteria (BPB), including Erysipelotrichaceae, Lactobacillaceae, and Eubacteriacea. Furthermore, the relative abundances of gut microbiota-mediated functional pathways involved in the cell growth and death, amino acid, energy, lipid, and carbohydrate metabolisms, and immune system increased after FMT treatment. CONCLUSION FMT modulated the gut microbiota homeostasis and affected the recovery from AD-related inflammations, suggesting that it could be used as a treatment strategy for AD patients in the clinic.
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Affiliation(s)
- Xinyu Jiang
- The Affiliated Hospital of Medical School, Ningbo University, Ningbo 315020, Zhejiang, China; Health Science Center, Ningbo University, Ningbo 315211, Zhejiang, China
| | - Zhifang Liu
- The Affiliated Hospital of Medical School, Ningbo University, Ningbo 315020, Zhejiang, China; Health Science Center, Ningbo University, Ningbo 315211, Zhejiang, China
| | - Yizhao Ma
- The Affiliated Hospital of Medical School, Ningbo University, Ningbo 315020, Zhejiang, China; Health Science Center, Ningbo University, Ningbo 315211, Zhejiang, China
| | - Linlin Miao
- The Affiliated Hospital of Medical School, Ningbo University, Ningbo 315020, Zhejiang, China; Health Science Center, Ningbo University, Ningbo 315211, Zhejiang, China
| | - Keyu Zhao
- The Affiliated Hospital of Medical School, Ningbo University, Ningbo 315020, Zhejiang, China; Health Science Center, Ningbo University, Ningbo 315211, Zhejiang, China
| | - Dianchen Wang
- The Affiliated Hospital of Medical School, Ningbo University, Ningbo 315020, Zhejiang, China; Health Science Center, Ningbo University, Ningbo 315211, Zhejiang, China
| | - Mengmeng Wang
- The Affiliated Hospital of Medical School, Ningbo University, Ningbo 315020, Zhejiang, China; Health Science Center, Ningbo University, Ningbo 315211, Zhejiang, China
| | - Hongyu Ruan
- The Affiliated Hospital of Medical School, Ningbo University, Ningbo 315020, Zhejiang, China; Health Science Center, Ningbo University, Ningbo 315211, Zhejiang, China
| | - Feng Xu
- The Affiliated Hospital of Medical School, Ningbo University, Ningbo 315020, Zhejiang, China
| | - Qiongyan Zhou
- The Affiliated Hospital of Medical School, Ningbo University, Ningbo 315020, Zhejiang, China
| | - Suling Xu
- The Affiliated Hospital of Medical School, Ningbo University, Ningbo 315020, Zhejiang, China.
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20
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Wang C, Yu X, Lin H, Wang G, Liu J, Gao C, Qi M, Wang D, Wang F. Integrating microbiome and metabolome revealed microbe-metabolism interactions in the stomach of patients with different severity of peptic ulcer disease. Front Immunol 2023; 14:1134369. [PMID: 36969184 PMCID: PMC10034094 DOI: 10.3389/fimmu.2023.1134369] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Accepted: 02/23/2023] [Indexed: 03/11/2023] Open
Abstract
BackgroundPeptic ulcer disease (PUD) is a multi-cause illness with an unknown role for gastric flora and metabolism in its pathogenesis. In order to further understand the pathogenesis of gastric flora and metabolism in PUD, this study used histological techniques to analyze the microbiome and metabolome of gastric biopsy tissue. In this paper, our work described the complex interactions of phenotype-microbial-metabolite-metabolic pathways in PUD patients at different pathological stages.MethodsGastric biopsy tissue samples from 32 patients with chronic non-atrophic gastritis, 24 patients with mucosal erosions, and 8 patients with ulcers were collected for the microbiome. UPLC-MS metabolomics was also used to detect gastric tissue samples. These datasets were analyzed individually and integrated using various bioinformatics methods.ResultsOur work found reduced diversity of gastric flora in patients with PUD. PUD patients at different pathological stages presented their own unique flora, and there were significant differences in flora phenotypes. Coprococcus_2, Phenylobacterium, Candidatus_Hepatoplasma, and other bacteria were found in the flora of people with chronic non-atrophic gastritis (HC). The representative flora of mucosal erosion (ME) had uncultured_bacterium_c_Subgroup_6, Sphingomonadaceae, Xanthobacteraceae, and uncultured_bacterium_f_Xanthobacteraceae. In comparison, the characteristic flora of the PUD group was the most numerous and complex, including Ruminococcus_2, Agathobacter, Alistipes, Helicobacter, Bacteroides and Faecalibacterium. Metabolomics identified and annotated 66 differential metabolites and 12 significantly different metabolic pathways. The comprehensive analysis correlated microorganisms with metabolites at different pathological stages and initially explored the complex interactions of phenotype-microbial-metabolite-metabolic pathways in PUD patients at different pathological stages.ConclusionOur research results provided substantial evidence to support some data on the analysis of the microbial community and its metabolism in the stomach, and they demonstrated many specific interactions between the gastric microbiome and the metabolome. Our study can help reveal the pathogenesis of PUD and indicate plausible disease-specific mechanisms for future studies from a new perspective.
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Affiliation(s)
- Chao Wang
- Department of Pathogen Biology, College of Basic Medical Sciences, Jilin University, Changchun, China
| | - Xiao Yu
- Department of Pathogen Biology, College of Basic Medical Sciences, Jilin University, Changchun, China
| | - Hongqiang Lin
- Department of Pathogen Biology, College of Basic Medical Sciences, Jilin University, Changchun, China
| | - Guoqiang Wang
- Department of Pathogen Biology, College of Basic Medical Sciences, Jilin University, Changchun, China
| | - Jianming Liu
- Department of Otolaryngology Head and Neck Surgery, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Chencheng Gao
- Department of Pathogen Biology, College of Basic Medical Sciences, Jilin University, Changchun, China
| | - Mingran Qi
- Department of Pathogen Biology, College of Basic Medical Sciences, Jilin University, Changchun, China
| | - Dan Wang
- Department of Gastroenterology, First Hospital of Jilin University, Changchun, China
- *Correspondence: Dan Wang, ; Fang Wang,
| | - Fang Wang
- Department of Pathogen Biology, College of Basic Medical Sciences, Jilin University, Changchun, China
- *Correspondence: Dan Wang, ; Fang Wang,
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21
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Blankestijn JM, Lopez-Rincon A, Neerincx AH, Vijverberg SJH, Hashimoto S, Gorenjak M, Sardón Prado O, Corcuera-Elosegui P, Korta-Murua J, Pino-Yanes M, Potočnik U, Bang C, Franke A, Wolff C, Brandstetter S, Toncheva AA, Kheiroddin P, Harner S, Kabesch M, Kraneveld AD, Abdel-Aziz MI, Maitland-van der Zee AH. Classifying asthma control using salivary and fecal bacterial microbiome in children with moderate-to-severe asthma. Pediatr Allergy Immunol 2023; 34:e13919. [PMID: 36825736 DOI: 10.1111/pai.13919] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 01/23/2023] [Accepted: 01/24/2023] [Indexed: 02/24/2023]
Abstract
BACKGROUND Uncontrolled asthma can lead to severe exacerbations and reduced quality of life. Research has shown that the microbiome may be linked with asthma characteristics; however, its association with asthma control has not been explored. We aimed to investigate whether the gastrointestinal microbiome can be used to discriminate between uncontrolled and controlled asthma in children. METHODS 143 and 103 feces samples were obtained from 143 children with moderate-to-severe asthma aged 6 to 17 years from the SysPharmPediA study. Patients were classified as controlled or uncontrolled asthmatics, and their microbiome at species level was compared using global (alpha/beta) diversity, conventional differential abundance analysis (DAA, analysis of compositions of microbiomes with bias correction), and machine learning [Recursive Ensemble Feature Selection (REFS)]. RESULTS Global diversity and DAA did not find significant differences between controlled and uncontrolled pediatric asthmatics. REFS detected a set of taxa, including Haemophilus and Veillonella, differentiating uncontrolled and controlled asthma with an average classification accuracy of 81% (saliva) and 86% (feces). These taxa showed enrichment in taxa previously associated with inflammatory diseases for both sampling compartments, and with COPD for the saliva samples. CONCLUSION Controlled and uncontrolled children with asthma can be differentiated based on their gastrointestinal microbiome using machine learning, specifically REFS. Our results show an association between asthma control and the gastrointestinal microbiome. This suggests that the gastrointestinal microbiome may be a potential biomarker for treatment responsiveness and thereby help to improve asthma control in children.
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Affiliation(s)
- Jelle M Blankestijn
- Department of Pulmonary Medicine, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
- Amsterdam Institute for Infection and Immunity, Amsterdam, The Netherlands
- Amsterdam Public Health, Amsterdam, The Netherlands
| | - Alejandro Lopez-Rincon
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, Utrecht, The Netherlands
- Department of Data Science, Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Anne H Neerincx
- Department of Pulmonary Medicine, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Susanne J H Vijverberg
- Department of Pulmonary Medicine, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Simone Hashimoto
- Department of Pulmonary Medicine, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
- Department of Pediatric Respiratory Medicine, Emma Children's Hospital, Amsterdam UMC, Amsterdam, The Netherlands
| | - Mario Gorenjak
- Center for Human Molecular Genetics and Pharmacogenomics, Faculty of Medicine, University of Maribor, Maribor, Slovenia
| | - Olaia Sardón Prado
- Division of Pediatric Respiratory Medicine, Hospital Universitario Donostia, San Sebastián, Spain
- Department of Pediatrics, University of the Basque Country (UPV/EHU), San Sebastián, Spain
| | - Paula Corcuera-Elosegui
- Division of Pediatric Respiratory Medicine, Hospital Universitario Donostia, San Sebastián, Spain
| | - Javier Korta-Murua
- Division of Pediatric Respiratory Medicine, Hospital Universitario Donostia, San Sebastián, Spain
| | - Maria Pino-Yanes
- Genomics and Health Group, Department of Biochemistry, Microbiology, Cell Biology and Genetics, Universidad de La Laguna (ULL), San Cristóbal de La Laguna, Spain
- CIBER de Enfermedades Respiratorias, Instituto de Salud Carlos III, Madrid, Spain
- Instituto de Tecnologías Biomédicas (ITB), Universidad de La Laguna, La Laguna, Spain
| | - Uroš Potočnik
- Center for Human Molecular Genetics and Pharmacogenomics, Faculty of Medicine, University of Maribor, Maribor, Slovenia
- Laboratory for Biochemistry, Molecular Biology and Genomics, Faculty of Chemistry and Chemical Engineering, University of Maribor, Maribor, Slovenia
| | - Corinna Bang
- Institute of Clinical Molecular Biology, Christian-Albrechts-University of Kiel, Kiel, Germany
| | - Andre Franke
- Institute of Clinical Molecular Biology, Christian-Albrechts-University of Kiel, Kiel, Germany
| | - Christine Wolff
- Science and Development Campus Regensburg (WECARE), University Children's Hospital Regensburg (KUNO) at the Hospital St. Hedwig of the Order of St. John, University of Regensburg, Regensburg, Germany
| | - Susanne Brandstetter
- Science and Development Campus Regensburg (WECARE), University Children's Hospital Regensburg (KUNO) at the Hospital St. Hedwig of the Order of St. John, University of Regensburg, Regensburg, Germany
| | - Antoaneta A Toncheva
- Science and Development Campus Regensburg (WECARE), University Children's Hospital Regensburg (KUNO) at the Hospital St. Hedwig of the Order of St. John, University of Regensburg, Regensburg, Germany
| | - Parastoo Kheiroddin
- Science and Development Campus Regensburg (WECARE), University Children's Hospital Regensburg (KUNO) at the Hospital St. Hedwig of the Order of St. John, University of Regensburg, Regensburg, Germany
| | - Susanne Harner
- Department of Pediatric Pneumology and Allergy, University Children's Hospital Regensburg (KUNO) at the Hospital St. Hedwig of the Order of St. John, University of Regensburg, Regensburg, Germany
| | - Michael Kabesch
- Science and Development Campus Regensburg (WECARE), University Children's Hospital Regensburg (KUNO) at the Hospital St. Hedwig of the Order of St. John, University of Regensburg, Regensburg, Germany
- Department of Pediatric Pneumology and Allergy, University Children's Hospital Regensburg (KUNO) at the Hospital St. Hedwig of the Order of St. John, University of Regensburg, Regensburg, Germany
| | - Aletta D Kraneveld
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, Utrecht, The Netherlands
| | - Mahmoud I Abdel-Aziz
- Department of Pulmonary Medicine, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
- Amsterdam Institute for Infection and Immunity, Amsterdam, The Netherlands
- Amsterdam Public Health, Amsterdam, The Netherlands
- Department of Clinical Pharmacy, Faculty of Pharmacy, Assiut University, Assiut, Egypt
| | - Anke H Maitland-van der Zee
- Department of Pulmonary Medicine, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
- Amsterdam Institute for Infection and Immunity, Amsterdam, The Netherlands
- Amsterdam Public Health, Amsterdam, The Netherlands
- Department of Pediatric Respiratory Medicine, Emma Children's Hospital, Amsterdam UMC, Amsterdam, The Netherlands
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22
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Chiu CY, Chang KC, Chang LC, Wang CJ, Chung WH, Hsieh WP, Su SC. Phenotype-specific signatures of systems-level gut microbiome associated with childhood airway allergies. Pediatr Allergy Immunol 2023; 34:e13905. [PMID: 36705037 DOI: 10.1111/pai.13905] [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: 04/02/2022] [Revised: 12/08/2022] [Accepted: 12/13/2022] [Indexed: 01/14/2023]
Abstract
BACKGROUND Perturbation of gut symbiosis has been linked to childhood allergic diseases. However, the underlying host-microbe interaction connected with specific phenotypes is poorly understood. METHODS To address this, integrative analyses of stool metagenomic and metabolomic profiles associated with IgE reactions in 56 children with mite-sensitized airway allergies (25 with rhinitis and 31 with asthma) and 28 nonallergic healthy controls were conducted. RESULTS We noted a decrease in the number and abundance of gut microbiome-encoded carbohydrate-active enzyme (CAZyme) genes, accompanied with a reduction in species richness, in the asthmatic gut microflora but not in that from allergic rhinitis. Such loss of CAZymes was consistent with the observation that a CAZyme-linked decrease in fecal butyrate was found in asthmatics and negatively correlated with mite-specific IgE responses. Different from the CAZymes, we demonstrated an increase in α diversity at the virulome levels in asthmatic gut microbiota and identified phenotype-specific variations of gut virulome. Moreover, use of fecal metagenomic and metabolomic signatures resulted in distinct effects on differentiating rhinitis and asthma from nonallergic healthy controls. CONCLUSION Overall, our integrative analyses reveal several signatures of systems-level gut microbiome in robust associations with fecal metabolites and disease phenotypes, which may be of etiological and diagnostic implications in childhood airway allergies.
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Affiliation(s)
- Chih-Yung Chiu
- Division of Pediatric Pulmonology, Chang Gung Memorial Hospital at Linkou, College of Medicine, Chang Gung University, Taoyuan, Taiwan.,Clinical Metabolomics Core Laboratory, Chang Gung Memorial Hospital at Linkou, Taoyuan, Taiwan
| | - Ko-Chun Chang
- Institute of Statistics, National Tsing-Hua University, Hsinchu, Taiwan
| | - Lun-Ching Chang
- Department of Mathematical Sciences, Florida Atlantic University, Boca Raton, USA
| | - Chia-Jung Wang
- Division of Pediatric Pulmonology, Chang Gung Memorial Hospital at Linkou, College of Medicine, Chang Gung University, Taoyuan, Taiwan.,Clinical Metabolomics Core Laboratory, Chang Gung Memorial Hospital at Linkou, Taoyuan, Taiwan
| | - Wen-Hung Chung
- Whole-Genome Research Core Laboratory of Human Diseases, Chang Gung Memorial Hospital, Keelung, Taiwan
| | - Wen-Ping Hsieh
- Institute of Statistics, National Tsing-Hua University, Hsinchu, Taiwan
| | - Shih-Chi Su
- Whole-Genome Research Core Laboratory of Human Diseases, Chang Gung Memorial Hospital, Keelung, Taiwan
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23
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An Altered Skin and Gut Microbiota Are Involved in the Modulation of Itch in Atopic Dermatitis. Cells 2022; 11:cells11233930. [PMID: 36497188 PMCID: PMC9736894 DOI: 10.3390/cells11233930] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 11/14/2022] [Accepted: 12/01/2022] [Indexed: 12/12/2022] Open
Abstract
Skin and gut microbiota play an important role in the pathogenesis of atopic dermatitis (AD). An alteration of the microbiota diversity modulates the development and course of AD, e.g., decreased microbiome diversity correlates with disease severity, particularly in lesional skin of AD. Itch is a hallmark of AD with unsatisfying treatment until now. Recent evidence suggests a possible role of microbiota in altering itch in AD through gut-skin-brain interactions. The microbial metabolites, proinflammatory cytokines, and impaired immune response lead to a modulation of histamine-independent itch, disruption of epidermal barrier, and central sensitization of itch mechanisms. The positive impact of probiotics in alleviating itch in AD supports this hypothesis, which may lead to novel strategies for managing itchy skin in AD patients. This review summarizes the emerging findings on the correlation between an altered microbiota and gut-skin-brain axis in AD, especially in modulating itchy skin.
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24
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Yang Z, Chen Z, Lin X, Yao S, Xian M, Ning X, Fu W, Jiang M, Li N, Xiao X, Feng M, Lian Z, Yang W, Ren X, Zheng Z, Zhao J, Wei N, Lu W, Roponen M, Schaub B, Wong GWK, Su Z, Wang C, Li J. Rural environment reduces allergic inflammation by modulating the gut microbiota. Gut Microbes 2022; 14:2125733. [PMID: 36193874 PMCID: PMC9542937 DOI: 10.1080/19490976.2022.2125733] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
Rural environments and microbiota are linked to a reduction in the prevalence of allergies. However, the mechanism underlying the reduced allergies modulated by rural residency is unclear. Here, we assessed gut bacterial composition and metagenomics in urban and rural children in the EuroPrevall-INCO cohort. Airborne dusts, including mattress and rural henhouse dusts, were profiled for bacterial and fungal composition by amplicon sequencing. Mice were repeatedly exposed to intranasal dust extracts and evaluated for their effects on ovalbumin (OVA)-induced allergic airway inflammation, and gut microbiota restoration was validated by fecal microbiota transplant (FMT) from dust-exposed donor mice. We found that rural children had fewer allergies and unique gut microbiota with fewer Bacteroides and more Prevotella. Indoor dusts in rural environments harbored higher endotoxin level and diversity of bacteria and fungi, whereas indoor urban dusts were enriched with Aspergillus and contained elevated pathogenic bacteria. Intranasal administration of rural dusts before OVA sensitization reduced respiratory eosinophils and blood IgE level in mice and also led to a recovery of gut bacterial diversity and Ruminiclostridium in the mouse model. FMT restored the protective effect by reducing OVA-induced lung eosinophils in recipient mice. Together, these results support a cause-effect relationship between exposure to dust microbiota and allergy susceptibility in children and mice. Specifically, rural environmental exposure modulated the gut microbiota, which was essential in reducing allergy in children from Southern China. Our findings support the notion that the modulation of gut microbiota by exposure to rural indoor dust may improve allergy prevention.
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Affiliation(s)
- Zhaowei Yang
- Department of Allergy and Clinical Immunology, State Key Laboratory of Respiratory Disease, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, P. R. China
| | - Zhong Chen
- Center for Genomics, School of Medicine, Loma Linda University, Loma Linda, CAUSA
| | - Xinliu Lin
- Department of Allergy and Clinical Immunology, State Key Laboratory of Respiratory Disease, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, P. R. China
| | - Siyang Yao
- Department of Allergy and Clinical Immunology, State Key Laboratory of Respiratory Disease, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, P. R. China
| | - Mo Xian
- Department of Allergy and Clinical Immunology, State Key Laboratory of Respiratory Disease, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, P. R. China
| | - Xiaoping Ning
- Department of Allergy and Clinical Immunology, State Key Laboratory of Respiratory Disease, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, P. R. China
| | - Wanyi Fu
- Department of Allergy and Clinical Immunology, State Key Laboratory of Respiratory Disease, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, P. R. China
| | - Mei Jiang
- Department of Allergy and Clinical Immunology, State Key Laboratory of Respiratory Disease, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, P. R. China
| | - Naijian Li
- Department of Allergy and Clinical Immunology, State Key Laboratory of Respiratory Disease, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, P. R. China
| | - Xiaojun Xiao
- State Key Laboratory of Respiratory Disease for Allergy at Shenzhen University, Shenzhen Key Laboratory of Allergy and Immunology, Shenzhen University School of Medicine, Shenzhen, China
| | - Mulin Feng
- Department of Allergy and Clinical Immunology, State Key Laboratory of Respiratory Disease, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, P. R. China
| | - Zexuan Lian
- Department of Allergy and Clinical Immunology, State Key Laboratory of Respiratory Disease, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, P. R. China
| | - Wenqing Yang
- Department of Allergy and Clinical Immunology, State Key Laboratory of Respiratory Disease, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, P. R. China
| | - Xia Ren
- Department of Allergy and Clinical Immunology, State Key Laboratory of Respiratory Disease, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, P. R. China
| | - Zhenyu Zheng
- Department of Allergy and Clinical Immunology, State Key Laboratory of Respiratory Disease, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, P. R. China
| | - Jiefeng Zhao
- Department of Allergy and Clinical Immunology, State Key Laboratory of Respiratory Disease, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, P. R. China
| | - Nili Wei
- Department of Allergy and Clinical Immunology, State Key Laboratory of Respiratory Disease, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, P. R. China
| | - Wenju Lu
- Department of Allergy and Clinical Immunology, State Key Laboratory of Respiratory Disease, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, P. R. China
| | - Marjut Roponen
- Department of Environmental Science, University of Eastern Finland, Kuopio, Finland
| | - Bianca Schaub
- Department of Pulmonary and Allergy, University Children’s Hospital Munich, LMU Munich, Munich, Germany
| | - Gary W. K. Wong
- Department of Paediatrics, Prince of Wales Hospital, the Chinese University of Hong Kong, Hong Kong, China,Gary W. K. Wong Department of Paediatrics, Prince of Wales Hospital, the Chinese University of Hong Kong, Hong Kong, China
| | - Zhong Su
- State Key Laboratory of Respiratory Disease, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China,Zhong Su State Key Laboratory of Respiratory Disease, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China
| | - Charles Wang
- Center for Genomics, School of Medicine, Loma Linda University, Loma Linda, CAUSA,Charles Wang Center for Genomics, School of Medicine, Loma Linda University, Loma Linda, CA USA
| | - Jing Li
- Department of Allergy and Clinical Immunology, State Key Laboratory of Respiratory Disease, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, P. R. China,CONTACT Jing Li Department of Allergy and Clinical Immunology, State Key Laboratory of Respiratory Disease, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, P. R. China
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25
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Liu Y, Du X, Zhai S, Tang X, Liu C, Li W. Gut microbiota and atopic dermatitis in children: a scoping review. BMC Pediatr 2022; 22:323. [PMID: 35655175 PMCID: PMC9161518 DOI: 10.1186/s12887-022-03390-3] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Accepted: 05/05/2022] [Indexed: 12/26/2022] Open
Abstract
Background Gut microbiota plays an important role in the development of atopic dermatitis (AD). We aimed to elucidate research trends in gut microbiota and AD in children, to provide evidence and insights to the clinical prevention and treatment of AD in children. Methods A scoping literature review on the studies of gut microbiota and AD were conducted. Two authors independently searched Pubmed et al. databases for studies focused on gut microbiota and AD in children up to January 15, 2022. The literatures were screened and analyzed by two reviewers. Results A total of 44 reports were finally included and analyzed. Current researches have indicated that abnormal human microecology is closely associated with AD, and the disturbance of intestinal microbiota plays an important role in the occurrence and development of AD. Probiotics can correct the microbiota disorder, have the functions of regulating immunity, antioxidant, and help to restore the microecological homeostasis. However, there is still a lack of high-quality research reports on the efficacy and safety of probiotics in the prevention and treatment of AD in children. Conclusions The changes of gut microbiota are essential to the development of AD in children, which may be an effective target for the prevention and treatment of AD. Future studies with larger sample size and rigorous design are needed to elucidate the effects and safety of probiotics in AD.
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Affiliation(s)
- Yue Liu
- Department of Acupuncture and Tuina Science, School of Traditional Chinese Medicine, Naval Medical University, No. 800 Xiangyin Road, Shanghai, 200433, China
| | - Xiaofan Du
- Clinical Medicine Science, Anhui Medical University, Hefei, 230032, China
| | - Shujie Zhai
- Department of Acupuncture and Tuina Science, School of Traditional Chinese Medicine, Naval Medical University, No. 800 Xiangyin Road, Shanghai, 200433, China
| | - Xiaodong Tang
- Department of Acupuncture and Tuina Science, School of Traditional Chinese Medicine, Naval Medical University, No. 800 Xiangyin Road, Shanghai, 200433, China
| | - Cuiling Liu
- Logistics Service Center, People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi, 830001, China
| | - Weihong Li
- Department of Acupuncture and Tuina Science, School of Traditional Chinese Medicine, Naval Medical University, No. 800 Xiangyin Road, Shanghai, 200433, China.
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26
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Manipulating Microbiota to Treat Atopic Dermatitis: Functions and Therapies. Pathogens 2022; 11:pathogens11060642. [PMID: 35745496 PMCID: PMC9228373 DOI: 10.3390/pathogens11060642] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Revised: 05/27/2022] [Accepted: 05/29/2022] [Indexed: 12/13/2022] Open
Abstract
Atopic dermatitis (AD) is a globally prevalent skin inflammation with a particular impact on children. Current therapies for AD are challenged by the limited armamentarium and the high heterogeneity of the disease. A novel promising therapeutic target for AD is the microbiota. Numerous studies have highlighted the involvement of the skin and gut microbiota in the pathogenesis of AD. The resident microbiota at these two epithelial tissues can modulate skin barrier functions and host immune responses, thus regulating AD progression. For example, the pathogenic roles of Staphylococcus aureus in the skin are well-established, making this bacterium an attractive target for AD treatment. Targeting the gut microbiota is another therapeutic strategy for AD. Multiple oral supplements with prebiotics, probiotics, postbiotics, and synbiotics have demonstrated promising efficacy in both AD prevention and treatment. In this review, we summarize the association of microbiota dysbiosis in both the skin and gut with AD, and the current knowledge of the functions of commensal microbiota in AD pathogenesis. Furthermore, we discuss the existing therapies in manipulating both the skin and gut commensal microbiota to prevent or treat AD. We also propose potential novel therapies based on the cutting-edge progress in this area.
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Ni Q, Zhang P, Li Q, Han Z. Oxidative Stress and Gut Microbiome in Inflammatory Skin Diseases. Front Cell Dev Biol 2022; 10:849985. [PMID: 35321240 PMCID: PMC8937033 DOI: 10.3389/fcell.2022.849985] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Accepted: 02/18/2022] [Indexed: 12/12/2022] Open
Abstract
Oxidative stress plays a dominant role in inflammatory skin diseases. Emerging evidence has shown that the close interaction occurred between oxidative stress and the gut microbiome. Overall, in this review, we have summarized the impact of oxidative stress and gut microbiome during the progression and treatment for inflammatory skin diseases, the interactions between gut dysbiosis and redox imbalance, and discussed the potential possible role of oxidative stress in the gut-skin axis. In addition, we have also elucidated the promising gut microbiome/redox-targeted therapeutic strategies for inflammatory skin diseases.
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Affiliation(s)
- Qingrong Ni
- Department of Dermatology, Air Force Medical Center, Fourth Military Medical University, Beijing, China
| | - Ping Zhang
- Department of Dermatology, Air Force Medical Center, Fourth Military Medical University, Beijing, China
| | - Qiang Li
- Department of Dermatology, Air Force Medical Center, Fourth Military Medical University, Beijing, China
| | - Zheyi Han
- Department of Gastroenterology, Air Force Medical Center, Fourth Military Medical University, Beijing, China
- *Correspondence: Zheyi Han,
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Ramakrishnan S, Beaufils F, De Brandt J, Viney K, Bradley C, Cottin V, Hassan M, Cruz J. European Respiratory Society International Congress 2021: highlights from best-abstract awardees. Breathe (Sheff) 2022; 18:210176. [PMID: 36338250 PMCID: PMC9584552 DOI: 10.1183/20734735.0176-2021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2021] [Accepted: 02/11/2022] [Indexed: 12/26/2022] Open
Abstract
This article provides an overview of some of the highlights of the @EuroRespSoc Congress 2021 from the perspective of the best-abstract awardees of the ERS Assemblies @EarlyCareerERS @OrphaLung https://bit.ly/3JCjHYS.
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Affiliation(s)
- Sanjay Ramakrishnan
- Oxford NIHR Biomedical Research Centre, University of Oxford, Oxford, UK
- School of Medical and Health Sciences, Edith Cowan University, Perth, Australia
- These authors contributed equally
| | - Fabien Beaufils
- Univ. Bordeaux, Centre de Recherche Cardio-thoracique de Bordeaux, INSERM U1045, Bordeaux Imaging Center, Bordeaux, France
- CHU Bordeaux, Service d'Exploration Fonctionnelle Respiratoire, Bordeaux, France
- These authors contributed equally
| | - Jana De Brandt
- Faculty of Rehabilitation Sciences, Rehabilitation Research Center REVAL, Biomedical Research Institute BIOMED, Hasselt University, Hasselt, Belgium
- Faculty of Medicine, Dept of Community Medicine and Rehabilitation, Section of Physiotherapy, Umeå University, Umeå, Sweden
- These authors contributed equally
| | - Kerri Viney
- Global Tuberculosis Programme, World Health Organization, Geneva, Switzerland
- These authors contributed equally
| | - Claire Bradley
- Leeds Teaching Hospitals, Leeds, UK
- These authors contributed equally
| | - Vincent Cottin
- National French Reference Coordinating Center for Rare Pulmonary Diseases, Louis Pradel Hospital and Hospices Civils de Lyon, Université de Lyon, Université Claude Bernard Lyon 1, INRAE, member of ERN-LUNG, Lyon, France
- These authors contributed equally
| | - Maged Hassan
- Chest Diseases Dept, Alexandria University Faculty of Medicine, Alexandria, Egypt
- These authors contributed equally
| | - Joana Cruz
- Center for Innovative Care and Health Technology (ciTechCare), School of Health Sciences (ESSLei), Polytechnic of Leiria, Leiria, Portugal
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Gut microbiota and plasma cytokine levels in patients with attention-deficit/hyperactivity disorder. Transl Psychiatry 2022; 12:76. [PMID: 35197458 PMCID: PMC8866486 DOI: 10.1038/s41398-022-01844-x] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 02/02/2022] [Accepted: 02/07/2022] [Indexed: 12/12/2022] Open
Abstract
Attention-deficit/hyperactivity disorder (ADHD) is a common childhood mental disorder with undetermined pathophysiological mechanisms. The gut microbiota and immunological dysfunction may influence brain functions and social behaviours. In the current study, we aimed to explore the correlation of gut microbiome imbalance and inflammation in the pathophysiology of ADHD. Forty-one children with ADHD and thirty-nine healthy-control (HC) individuals were recruited. Faecal samples from all participants were collected and submitted for 16 S rRNA V3-V4 amplicon microbiome sequencing analysis. The plasma levels of 10 cytokines, including TNF-α, IL-6, IL-1β, IL-2, IL-10, IL-13, IL-17A, IFN-α2, IFN-γ, and MCP-1, were determined using a custom-made sandwich enzyme-linked immunosorbent assay (ELISA) developed by Luminex Flowmetrix. There was no significant difference between the ADHD and HC groups in species diversity in the faeces, as determined with α-diversity and β-diversity analysis. In the ADHD group, three differentially abundant taxonomic clades at the genus level were observed, namely Agathobacter, Anaerostipes, and Lachnospiraceae. Top differentially abundant bacteria and representative biological pathways were identified in children with ADHD using linear discriminant analysis (LDA) effect size (LEfSe), and the phylogenetic investigation of communities by reconstruction of unobserved states (PICRUSt) analysis, respectively. The plasma levels of TNF-α were significantly lower in children with ADHD than in HCs. Within the ADHD group, the levels of TNF-α were negatively correlated with ADHD symptoms and diversity of the gut microbiome. Our study provides new insights into the association between gut microbiome dysbiosis and immune dysregulation, which may contribute to the pathophysiology of ADHD.
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Suaini NHA, Siah KTH, Tham EH. Role of the gut-skin axis in IgE-mediated food allergy and atopic diseases. Curr Opin Gastroenterol 2021; 37:557-564. [PMID: 34411036 DOI: 10.1097/mog.0000000000000780] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
PURPOSE OF REVIEW In recent years, landmark clinical trials investigating the role of early oral exposure to food antigens for food allergy (FA) prevention have highlighted the importance of immunoregulatory pathways in the 'gut-skin axis'. This review highlights recent literature on the mechanisms of the immune system and microbiome involved in the gut-skin axis, contributing to the development of atopic dermatitis (AD), FA, allergic rhinitis (AR) and asthma. Therapeutic interventions harnessing the gut-skin axis are also discussed. RECENT FINDINGS Epicutaneous sensitization in the presence of AD is capable of inducing Th2 allergic inflammation in the intestinal tract and lower respiratory airways, predisposing one to the development of AR and asthma. Probiotics have demonstrated positive effects in preventing and treating AD, though there is no evident relationship of its beneficial effects on other allergic diseases. Prophylactic skin emollients use has not shown consistent protection against AD, whereas there is some evidence for the role of dietary changes in alleviating AD and airway inflammation. More randomized controlled trials are needed to clarify the potential of epicutaneous immunotherapy as a therapeutic strategy for patients with FA. SUMMARY The growing understanding of the gut-skin interactions on allergic disease pathogenesis presents novel avenues for therapeutic interventions which target modulation of the gut and/or skin.
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Affiliation(s)
| | - Kewin Tien Ho Siah
- Division of Gastroenterology & Hepatology, University Medicine Cluster, National University Hospital
- Department of Medicine, Yong Loo Lin School of Medicine
| | - Elizabeth Huiwen Tham
- Singapore Institute for Clinical Sciences (SICS), Agency for Science, Technology and Research (A STAR)
- Department of Paediatrics, Yong Loo Lin School of Medicine, National University of Singapore (NUS)
- Khoo Teck Puat-National University Children's Medical Institute, National University Health System (NUHS)
- Human Potential Translational Research Programme, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
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Fang Z, Li L, Zhang H, Zhao J, Lu W, Chen W. Gut Microbiota, Probiotics, and Their Interactions in Prevention and Treatment of Atopic Dermatitis: A Review. Front Immunol 2021; 12:720393. [PMID: 34335634 PMCID: PMC8317022 DOI: 10.3389/fimmu.2021.720393] [Citation(s) in RCA: 65] [Impact Index Per Article: 21.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Accepted: 06/28/2021] [Indexed: 12/15/2022] Open
Abstract
Atopic dermatitis (AD) is a public health concern and is increasing in prevalence in urban areas. Recent advances in sequencing technology have demonstrated that the development of AD not only associate with the skin microbiome but gut microbiota. Gut microbiota plays an important role in allergic diseases including AD. The hypothesis of the “gut-skin” axis has been proposed and the cross-talk mechanism between them has been gradually demonstrated in the research. Probiotics contribute to the improvement of the intestinal environment, the balance of immune responses, regulation of metabolic activity. Most studies suggest that probiotic supplements may be an alternative for the prevention and treatment of AD. This study aimed to discuss the effects of probiotics on the clinical manifestation of AD based on gut microbial alterations. Here we reviewed the gut microbial alteration in patients with AD, the association between gut microbiota, epidermal barrier, and toll-like receptors, and the interaction of probiotics and gut microbiota. The potential mechanisms of probiotics on alleviating AD via upregulation of epidermal barrier and regulation of immune signaling had been discussed, and their possible effective substances on AD had been explored. This provides the supports for targeting gut microbiota to attenuate AD.
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Affiliation(s)
- Zhifeng Fang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China.,School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Lingzhi Li
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China.,School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Hao Zhang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China.,School of Food Science and Technology, Jiangnan University, Wuxi, China.,National Engineering Research Center for Functional Food, Jiangnan University, Wuxi, China.,(Yangzhou) Institute of Food Biotechnology, Jiangnan University, Yangzhou, China.,Wuxi Translational Medicine Research Center and Jiangsu Translational Medicine Research, Institute Wuxi Branch, Wuxi, China
| | - Jianxin Zhao
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China.,School of Food Science and Technology, Jiangnan University, Wuxi, China.,(Yangzhou) Institute of Food Biotechnology, Jiangnan University, Yangzhou, China
| | - Wenwei Lu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China.,School of Food Science and Technology, Jiangnan University, Wuxi, China.,National Engineering Research Center for Functional Food, Jiangnan University, Wuxi, China
| | - Wei Chen
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China.,School of Food Science and Technology, Jiangnan University, Wuxi, China.,National Engineering Research Center for Functional Food, Jiangnan University, Wuxi, China
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