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Li NN, Kang K, Zhou Y, Liu YQ, Zhang QQ, Luo PY, Wang L, Man MY, Lv JF, Wang XB, Peng YH, Luan FY, Li Y, Zhang JN, Chong Y, Wang YQ, Wang CS, Zhao MY, Yu KJ. Throat microbiota drives alterations in pulmonary alveolar microbiota in patients with septic ARDS. Virulence 2024; 15:2350775. [PMID: 38736041 PMCID: PMC11093027 DOI: 10.1080/21505594.2024.2350775] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Accepted: 04/27/2024] [Indexed: 05/14/2024] Open
Abstract
OBJECTIVES The translocation of intestinal flora has been linked to the colonization of diverse and heavy lower respiratory flora in patients with septic ARDS, and is considered a critical prognostic factor for patients. METHODS On the first and third days of ICU admission, BALF, throat swab, and anal swab were collected, resulting in a total of 288 samples. These samples were analyzed using 16S rRNA analysis and the traceability analysis of new generation technology. RESULTS On the first day, among the top five microbiota species in abundance, four species were found to be identical in BALF and throat samples. Similarly, on the third day, three microbiota species were found to be identical in abundance in both BALF and throat samples. On the first day, 85.16% of microorganisms originated from the throat, 5.79% from the intestines, and 9.05% were unknown. On the third day, 83.52% of microorganisms came from the throat, 4.67% from the intestines, and 11.81% were unknown. Additionally, when regrouping the 46 patients, the results revealed a significant predominance of throat microorganisms in BALF on both the first and third day. Furthermore, as the disease progressed, the proportion of intestinal flora in BALF increased in patients with enterogenic ARDS. CONCLUSIONS In patients with septic ARDS, the main source of lung microbiota is primarily from the throat. Furthermore, the dynamic trend of the microbiota on the first and third day is essentially consistent.It is important to note that the origin of the intestinal flora does not exclude the possibility of its origin from the throat.
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Affiliation(s)
- Na-Na Li
- Departments of Critical Care Medicine, the First Affiliated Hospital of Harbin Medical University, Harbin Medical University, Harbin, Heilongjiang, China
| | - Kai Kang
- Departments of Critical Care Medicine, the First Affiliated Hospital of Harbin Medical University, Harbin Medical University, Harbin, Heilongjiang, China
| | - Yang Zhou
- Departments of Critical Care Medicine, the First Affiliated Hospital of Harbin Medical University, Harbin Medical University, Harbin, Heilongjiang, China
| | - Yan-Qi Liu
- Departments of Critical Care Medicine, the First Affiliated Hospital of Harbin Medical University, Harbin Medical University, Harbin, Heilongjiang, China
| | - Qian-Qian Zhang
- Departments of Critical Care Medicine, the First Affiliated Hospital of Harbin Medical University, Harbin Medical University, Harbin, Heilongjiang, China
| | - Pei-Yao Luo
- Departments of Critical Care Medicine, the First Affiliated Hospital of Harbin Medical University, Harbin Medical University, Harbin, Heilongjiang, China
| | - Lei Wang
- Departments of Critical Care Medicine, the First Affiliated Hospital of Harbin Medical University, Harbin Medical University, Harbin, Heilongjiang, China
| | - Ming-Yin Man
- Departments of Critical Care Medicine, the First Affiliated Hospital of Harbin Medical University, Harbin Medical University, Harbin, Heilongjiang, China
- Departments of Critical Care Medicine, Zhongshan Hospital of Xiamen University, Xiamen, Fujian, China
| | - Jia-Feng Lv
- Departments of Critical Care Medicine, the First Affiliated Hospital of Harbin Medical University, Harbin Medical University, Harbin, Heilongjiang, China
| | - Xi-Bo Wang
- Departments of Critical Care Medicine, the First Affiliated Hospital of Harbin Medical University, Harbin Medical University, Harbin, Heilongjiang, China
| | - Ya-Hui Peng
- Departments of Critical Care Medicine, the First Affiliated Hospital of Harbin Medical University, Harbin Medical University, Harbin, Heilongjiang, China
| | - Fei-Yu Luan
- Departments of Critical Care Medicine, the First Affiliated Hospital of Harbin Medical University, Harbin Medical University, Harbin, Heilongjiang, China
| | - Yue Li
- Departments of Critical Care Medicine, the First Affiliated Hospital of Harbin Medical University, Harbin Medical University, Harbin, Heilongjiang, China
- Departments of Critical Care Medicine, the Second Affiliated Hospital of Harbin Medical University, Harbin Medical University, Harbin, Heilongjiang, China
| | - Jian-Nan Zhang
- Departments of Critical Care Medicine, the First Affiliated Hospital of Harbin Medical University, Harbin Medical University, Harbin, Heilongjiang, China
| | - Yang Chong
- Departments of Critical Care Medicine, the First Affiliated Hospital of Harbin Medical University, Harbin Medical University, Harbin, Heilongjiang, China
| | - Yi-Qi Wang
- Departments of Critical Care Medicine, the First Affiliated Hospital of Harbin Medical University, Harbin Medical University, Harbin, Heilongjiang, China
| | - Chang-song Wang
- Departments of Critical Care Medicine, the First Affiliated Hospital of Harbin Medical University, Harbin Medical University, Harbin, Heilongjiang, China
| | - Ming-yan Zhao
- Departments of Critical Care Medicine, the First Affiliated Hospital of Harbin Medical University, Harbin Medical University, Harbin, Heilongjiang, China
| | - Kai-jiang Yu
- Departments of Critical Care Medicine, the First Affiliated Hospital of Harbin Medical University, Harbin Medical University, Harbin, Heilongjiang, China
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Mousavian AH, Zare Garizi F, Ghoreshi B, Ketabi S, Eslami S, Ejtahed HS, Qorbani M. The association of infant and mother gut microbiomes with development of allergic diseases in children: a systematic review. J Asthma 2024; 61:1121-1135. [PMID: 38506489 DOI: 10.1080/02770903.2024.2332921] [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: 12/20/2023] [Revised: 03/12/2024] [Accepted: 03/15/2024] [Indexed: 03/21/2024]
Abstract
OBJECTIVE It is believed that gut microbiota alteration leads to both intestinal and non-intestinal diseases in children. Since infants inherit maternal microbiota during pregnancy and lactation, recent studies suggest that changes in maternal microbiota can cause immune disorders as well. This systematic review was designed to assess the association between the child and mother's gut microbiome and allergy development in childhood. DATA SOURCES In this systematic review, international databases including PubMed, Scopus, and ISI/WOS were searched until January 2023 to identify relevant studies. STUDY SELECTIONS Observational studies that analyzed infant or maternal stool microbiome and their association with allergy development in children were included in this study. Data extraction and quality assessment of the included studies were independently conducted by two researchers. RESULTS Of the 1694 papers evaluated, 21 studies examined neonate gut microbiome by analyzing stool samples and six studies examined maternal gut microbiota. A total of 5319 participants were included in this study. Asthma followed by eczema and dermatitis were the most common allergy disorders among children. Urbanization caused a lack of diversity in the bacterial microbiota as well as lower levels of Bifidobacterium and Lachnospira associated with a higher risk of allergy. In contrast, higher levels of Roseburia and Flavonifractor were associated with lower allergy risk. CONCLUSIONS This systematic review shows that gut microbiota may be associated with allergy development. Further studies are required to provide a definitive answer.
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Affiliation(s)
- Amir-Hossein Mousavian
- Digestive Disease Research Institute, Tehran University of Medical Sciences, Tehran, Iran
- Chronic Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Fateme Zare Garizi
- Student Research Committee, Alborz University of Medical Sciences, Karaj, Iran
| | - Behnaz Ghoreshi
- Faculty of Medicine, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Siavash Ketabi
- Chronic Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Solat Eslami
- Department of Medical Biotechnology, School of Medicine, Alborz University of Medical Sciences, Karaj, Iran
| | - Hanieh-Sadat Ejtahed
- Obesity and Eating Habits Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Mostafa Qorbani
- Non-communicable Diseases Research Center, Alborz University of Medical Sciences, Karaj, Iran
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Huang Z, Zhang L, Xuan J, Zhao T, Peng W. Antibacterial and Antiallergic Effects of Three Tea Extracts on Histamine-Induced Dermatitis. Pharmaceuticals (Basel) 2024; 17:1181. [PMID: 39338343 PMCID: PMC11435320 DOI: 10.3390/ph17091181] [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: 07/22/2024] [Revised: 08/24/2024] [Accepted: 09/05/2024] [Indexed: 09/30/2024] Open
Abstract
Atopic dermatitis (AD) is a persistent and recurrent inflammatory skin condition with a genetic basis. However, the fundamental reasons and mechanisms behind this phenomenon remain incompletely understood. While tea extracts are known to reduce histamine-induced skin allergies and inflammation, the specific mechanisms by which various types of Chinese tea provide their protective effects are still not fully elucidated. In this study, a model of skin itching induced by histamine is used to explore the functions and mechanisms of three types of tea extract (Keemun black tea (HC), Hangzhou green tea (LC), and Fujian white tea (BC)) in alleviating histamine-induced dermatitis. The components of three tea extracts are identified by UPLC-Q-TOF-MS, and we found that their main components are alkaloids, fatty acyls, flavonoids, organic acids, and phenols. The inhibitory effects of three types of tea extract on Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus) in skin injury are investigated by MIC and flow cytometry. The three types of tea extract have an inhibitory effect on the growth of bacterial flora, with HC showing the best inhibitory activity. The effect of the three types of tea extract on histamine-induced dermatitis is also evaluated. Furthermore, itchy skin experiments, HE staining, toluidine blue staining, and immunohistochemical staining of mouse skin tissues were performed to determine the variations of scratching, epidermal thickness, mast cell number, IL-1β, and NGF content after the administration of the tea extracts. The three types of tea extracts all alleviate and inhibit skin itching, epidermal hyperplasia, and allergic dermatitis. BC effectively alleviates epidermal hyperplasia caused by skin allergies, and LC significantly downregulates NGF. HC reduces histamine-induced mast cell infiltration and downregulates IL-1β to alleviate skin itching. Consequently, tea emerges a potent natural product that can inhibit the growth of skin wound bacterial flora and exhibit skin repair effects on histamine-induced allergic dermatitis.
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Affiliation(s)
- Zeting Huang
- Guangzhou Zhongzhuang Meiye Cosmetics Co., Ltd., Guangzhou 510006, China
| | - Lanyue Zhang
- Guangdong Provincial Key Laboratory of Plant Resources Biorefinery, School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, China
| | - Jie Xuan
- Guangzhou Zhongzhuang Meiye Cosmetics Co., Ltd., Guangzhou 510006, China
| | - Tiantian Zhao
- Key Laboratory of Functional Foods, Guangdong Key Laboratory of Agricultural Products Processing, Sericulture & Agri-food Research Institute, Guangdong Academy of Agricultural Sciences, Ministry of Agriculture and Rural Affairs, Guangzhou 510610, China
- Department of Food Science, Rutgers University, New Brunswick, NJ 08901, USA
| | - Weihua Peng
- Guangzhou Zhongzhuang Meiye Cosmetics Co., Ltd., Guangzhou 510006, China
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4
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Wang Y, Wang B, Sun S, Wang Z. Mapping the relationship between atopic dermatitis and gut microbiota: a bibliometric analysis, 2014-2023. Front Microbiol 2024; 15:1400657. [PMID: 39296293 PMCID: PMC11408322 DOI: 10.3389/fmicb.2024.1400657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2024] [Accepted: 08/26/2024] [Indexed: 09/21/2024] Open
Abstract
Background Atopic dermatitis (AD) is a chronic inflammatory skin condition affecting a significant portion of the population, with prevalence rates of 25% in children and 7-10% in adults. AD not only poses physical challenges but also profoundly impacts patients' mental well-being and quality of life. The stability of gut microbiota is crucial for overall health and can influence AD progression by modulating immune function, skin barrier integrity, and neuroendocrine signaling, which may be an effective target for the prevention and treatment of AD. Thus, exploring the interactions between AD and gut microbiota, particularly in infants, can provide insights into potential preventive and therapeutic strategies. This study aimed to explore the correlation between AD and gut microbiota while providing an overview of current research trends and emerging areas of interest in this field. Methods A comprehensive search was conducted on the Web of Science Core Collection (WOSCC) for relevant publications from January 1, 2014, to December 31, 2023. English-language articles and reviews were included. Two investigators independently screened the publications, and visual analysis was performed using CiteSpace, VOSviewer, Scimago Graphica, and Microsoft Excel software. Results A total of 804 articles were included, showing a significant increase in publications over the past decade. The United States, Wageningen University, and University Ulsan (represented by Hong SJ) had the highest number of published papers. Nutrients was the journal with the most publications, while the Journal of Allergy and Clinical Immunology had the highest number of citations and centrality among co-cited journals. Keyword visualization analysis identified "atopic dermatitis" and "gut microbiota" as central themes. Notably, there has been a notable shift in research focus over the years, with early studies concentrating on "Fecal microbiota," "caesarean section," and "first 6 months," while recent studies have highlighted the roles of "cells," "dysbiosis," and "prebiotics." This shift indicates growing interest in the underlying mechanisms and potential therapeutic interventions related to the intestinal microecology in AD treatment. Conclusion The field of AD and gut microbiota research has evolved significantly, with an increasing focus on understanding the intricate interactions between gut microbiota and AD pathogenesis. Recent years have witnessed increased interest in understanding the relationship between AD and gut microbiota, with researchers conducting extensive studies exploring various aspects of this connection. This review analyzes research trends over the past decade, highlighting trends and hotspots in the study of AD, particularly in infants, and the role of microbiota. This review serves as a valuable reference for future investigations, aiming to provide deeper insights into this burgeoning field and suggests directions for future research.
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Affiliation(s)
- Yilin Wang
- Department of Dermatology, The 83rd Group Army Hospital of the PLA, Xinxiang, China
| | - Bingkun Wang
- Department of Dermatology, The 83rd Group Army Hospital of the PLA, Xinxiang, China
| | - Shiyou Sun
- Department of Dermatology, The 83rd Group Army Hospital of the PLA, Xinxiang, China
| | - Zhongzhi Wang
- Department of Dermatology, Shanghai Fourth People 's Hospital, Tongji University School of Medicine, Shanghai, China
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5
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Conway AE, Verdi M, Kartha N, Maddukuri C, Anagnostou A, Abrams EM, Bansal P, Bukstein D, Nowak-Wegrzyn A, Oppenheimer J, Madan JC, Garnaat SL, Bernstein JA, Shaker MS. Allergic Diseases and Mental Health. THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY. IN PRACTICE 2024; 12:2298-2309. [PMID: 38851487 DOI: 10.1016/j.jaip.2024.05.049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2024] [Revised: 05/21/2024] [Accepted: 05/29/2024] [Indexed: 06/10/2024]
Abstract
Neuropsychiatric symptoms have long been acknowledged as a common comorbidity for individuals with allergic diseases. The proposed mechanisms for this relationship vary by disease and patient population and may include neuroinflammation and/or the consequent social implications of disease symptoms and management. We review connections between mental health and allergic rhinitis, atopic dermatitis, asthma, vocal cord dysfunction, urticaria, and food allergy. Many uncertainties remain and warrant further research, particularly with regard to how medications interact with pathophysiologic mechanisms of allergic disease in the neuroimmune axis. Proactive screening for mental health challenges, using tools such as the Patient Health Questionnaire and Generalized Anxiety Disorder screening instruments among others, can aid clinicians in identifying patients who may need further psychiatric evaluation and support. Although convenient, symptom screening tools are limited by variable sensitivity and specificity and therefore require healthcare professionals to remain vigilant for other mental health "red flags." Ultimately, understanding the connection between allergic disease and mental health empowers clinicians to both anticipate and serve the diverse physical and mental health needs of their patient populations.
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Affiliation(s)
| | | | - Navya Kartha
- Department of Pediatrics, Akron Children's Hospital, Akron, Ohio
| | | | - Aikaterini Anagnostou
- Department of Pediatrics, Division of Allergy and Immunology, Baylor College of Medicine, Houston, Texas
| | | | - Priya Bansal
- Asthma and Allergy Wellness Center, St. Charles, Ill; Division of Allergy and Immunology, Northwestern Feinberg School of Medicine, Chicago, Ill
| | - Don Bukstein
- Allergy, Asthma, and Sinus Center, Milwaukee, Wis
| | - Anna Nowak-Wegrzyn
- Department of Population Health, NYU Grossman School of Medicine, New York, NY; Department of Pediatrics, Gastroenterology and Nutrition, Collegium Medicum, University of Warmia and Mazury, Olsztyn, Poland
| | | | - Juliette C Madan
- Department of Epidemiology, Geisel School of Medicine at Dartmouth, Hanover, NH; Departments of Pediatrics and Psychiatry, Division of Child Psychiatry, Dartmouth-Hitchcock Medical Center, Lebanon, NH
| | - Sarah L Garnaat
- Department of Psychiatry, Geisel School of Medicine at Dartmouth, Hanover, NH; Department of Psychiatry, Dartmouth-Hitchcock Medical Center, Lebanon, NH
| | - Jonathan A Bernstein
- Department of Internal Medicine, Division of Rheumatology, Allergy and Immunology, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Marcus S Shaker
- Departments of Medicine and Pediatrics, Geisel School of Medicine at Dartmouth, Hanover, NH; Dartmouth-Hitchcock Medical Center, Section of Allergy and Immunology, Lebanon, NH.
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Haussmann AJ, McMahan ZH, Volkmann ER. Understanding the gastrointestinal microbiome in systemic sclerosis: methodological advancements and emerging research. Curr Opin Rheumatol 2024:00002281-990000000-00138. [PMID: 39189041 DOI: 10.1097/bor.0000000000001048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/28/2024]
Abstract
PURPOSE OF REVIEW This review highlights the role of the gastrointestinal (GI) microbiome in systemic sclerosis (SSc). We describe techniques for evaluating the GI microbiome in humans, and emerging research linking GI microbiome alterations (i.e., dysbiosis) and distinct SSc clinical manifestations. We also address the evolving treatment landscape targeting dysbiosis in SSc. RECENT FINDINGS Recent literature brings into focus the complex relationship between the GI microbiome and SSc pathogenesis. Advanced techniques (e.g., shotgun metagenomics, meta-transcriptomics) provide deeper insights into microbial taxonomy and active gene expression, exposing dysbiosis as a potential driver of SSc. New studies demonstrate that SSc patients who possess specific SSc clinical features, (e.g., interstitial lung disease), have unique GI microbiome profiles. SUMMARY Dysbiosis is associated with specific clinical features in patients with SSc. New tools for studying the GI microbiome have furthered our understanding of the relationship between dysbiosis and SSc complications. Therapeutic avenues such as dietary adjustments, probiotics, antibiotics, mindfulness practices, and fecal transplants offer potential for managing SSc and preventing its progression through GI microbiome modulation. By clarifying what is known about the relationship between the GI dysbiosis, GI dysfunction, and SSc, this review enhances our understanding of SSc pathogenesis and proposes targeted interventions.
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Affiliation(s)
- Alana J Haussmann
- Department of Medicine, University of California, Los Angeles, David Geffen School of Medicine
| | - Zsuzsanna H McMahan
- Department of Medicine, The University of Texas Health Science Center at Houston, Houston, Texas, USA
| | - Elizabeth R Volkmann
- Department of Medicine, University of California, Los Angeles, David Geffen School of Medicine
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Palmer DJ, Cuthbert AR, Sullivan TR, Pretorius RA, Garssen J, Rueter K, Jenmalm MC, Keelan JA, Silva D, Prescott SL. Effects of pregnancy and lactation prebiotics supplementation on infant allergic disease: A randomized controlled trial. J Allergy Clin Immunol 2024:S0091-6749(24)00859-5. [PMID: 39173718 DOI: 10.1016/j.jaci.2024.08.009] [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: 04/21/2024] [Revised: 07/29/2024] [Accepted: 08/08/2024] [Indexed: 08/24/2024]
Abstract
BACKGROUND Ingestion of prebiotics during pregnancy and lactation may have immunomodulatory benefits for the developing fetal and infant immune system and provide a potential dietary strategy to reduce the risk of allergic diseases. OBJECTIVE We sought to determine whether maternal supplementation with dietary prebiotics reduces the risk of allergic outcomes in infants with hereditary risk. METHODS We undertook a double-blind randomized controlled trial in which pregnant women were allocated to consume prebiotics (14.2 g daily of galacto-oligosaccharides and fructo-oligosaccharides in the ratio 9:1) or placebo (8.7 g daily of maltodextrin) powder from less than 21 weeks' gestation until 6 months postnatal during lactation. Eligible women had infants with a first-degree relative with a history of medically diagnosed allergic disease. The primary outcome was medically diagnosed infant eczema by age 1 year, and secondary outcomes included allergen sensitization, food allergy, and recurrent wheeze by age 1 year. RESULTS A total of 652 women were randomized between June 2016 and November 2021 (329 in the prebiotics group and 323 in the placebo group). There was no significant difference between groups in the percentage of infants with medically diagnosed eczema by age 1 year (prebiotics 31.5% [103 of 327 infants] vs placebo 32.6% [105 of 322 infants]; adjusted relative risk, 0.98; 95% CI, 0.77-1.23; P = .84). Secondary outcomes and safety measures also did not significantly differ between groups. CONCLUSIONS We found little evidence that maternal prebiotics supplementation during pregnancy and lactation reduces the risk of medically diagnosed infant eczema by age 1 year in infants who are at hereditary risk of allergic disease.
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Affiliation(s)
- Debra J Palmer
- Telethon Kids Institute, The University of Western Australia, Nedlands, Australia; School of Medicine, The University of Western Australia, Crawley, Australia.
| | - Alana R Cuthbert
- SAHMRI Women and Kids, South Australian Health and Medical Research Institute, Adelaide, Australia
| | - Thomas R Sullivan
- SAHMRI Women and Kids, South Australian Health and Medical Research Institute, Adelaide, Australia; School of Public Health, The University of Adelaide, Adelaide, Australia
| | - Rachelle A Pretorius
- Telethon Kids Institute, The University of Western Australia, Nedlands, Australia; School of Medicine, The University of Western Australia, Crawley, Australia
| | - Johan Garssen
- Division of Pharmacology Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, Utrecht, The Netherlands; Nutricia Research, Utrecht, The Netherlands
| | - Kristina Rueter
- School of Medicine, The University of Western Australia, Crawley, Australia; Department of Immunology and Dermatology, Perth Children's Hospital, Nedlands, Australia
| | - Maria C Jenmalm
- Division of Inflammation and Infection, Department of Biomedical and Clinical Sciences, Faculty of Medicine and Health Sciences, Linköping University, Linköping, Sweden
| | - Jeffrey A Keelan
- School of Medicine, The University of Western Australia, Crawley, Australia; School of Biomedical Sciences, The University of Western Australia, Crawley, Australia
| | - Desiree Silva
- Telethon Kids Institute, The University of Western Australia, Nedlands, Australia; School of Medicine, The University of Western Australia, Crawley, Australia; Joondalup Health Campus, Joondalup, Australia; Edith Cowan University, Perth, Australia
| | - Susan L Prescott
- Telethon Kids Institute, The University of Western Australia, Nedlands, Australia; School of Medicine, The University of Western Australia, Crawley, Australia; Department of Immunology and Dermatology, Perth Children's Hospital, Nedlands, Australia; Nova Institute for Health, Baltimore, Md
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8
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Perdijk O, Butler A, Macowan M, Chatzis R, Bulanda E, Grant RD, Harris NL, Wypych TP, Marsland BJ. Antibiotic-driven dysbiosis in early life disrupts indole-3-propionic acid production and exacerbates allergic airway inflammation in adulthood. Immunity 2024; 57:1939-1954.e7. [PMID: 39013465 DOI: 10.1016/j.immuni.2024.06.010] [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: 06/23/2023] [Revised: 03/19/2024] [Accepted: 06/14/2024] [Indexed: 07/18/2024]
Abstract
Antibiotic use in early life disrupts microbial colonization and increases the risk of developing allergies and asthma. We report that mice given antibiotics in early life (EL-Abx), but not in adulthood, were more susceptible to house dust mite (HDM)-induced allergic airway inflammation. This susceptibility was maintained even after normalization of the gut microbiome. EL-Abx decreased systemic levels of indole-3-propionic acid (IPA), which induced long-term changes to cellular stress, metabolism, and mitochondrial respiration in the lung epithelium. IPA reduced mitochondrial respiration and superoxide production and altered chemokine and cytokine production. Consequently, early-life IPA supplementation protected EL-Abx mice against exacerbated HDM-induced allergic airway inflammation in adulthood. These results reveal a mechanism through which EL-Abx can predispose the lung to allergic airway inflammation and highlight a possible preventative approach to mitigate the detrimental consequences of EL-Abx.
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Affiliation(s)
- Olaf Perdijk
- Department of Immunology, Mucosal Immunology Research Group, School of Translational Medicine, Monash University, Melbourne, VIC, Australia.
| | - Alana Butler
- Department of Immunology, Mucosal Immunology Research Group, School of Translational Medicine, Monash University, Melbourne, VIC, Australia
| | - Matthew Macowan
- Department of Immunology, Mucosal Immunology Research Group, School of Translational Medicine, Monash University, Melbourne, VIC, Australia
| | - Roxanne Chatzis
- Department of Immunology, Mucosal Immunology Research Group, School of Translational Medicine, Monash University, Melbourne, VIC, Australia
| | - Edyta Bulanda
- Laboratory of Host-Microbiota Interactions, Nencki Institute of Experimental Biology, Polish Academy of Sciences, Warsaw, Poland
| | - Rhiannon D Grant
- Department of Immunology, Mucosal Immunology Research Group, School of Translational Medicine, Monash University, Melbourne, VIC, Australia
| | - Nicola L Harris
- Department of Immunology, Mucosal Immunology Research Group, School of Translational Medicine, Monash University, Melbourne, VIC, Australia
| | - Tomasz P Wypych
- Department of Immunology, Mucosal Immunology Research Group, School of Translational Medicine, Monash University, Melbourne, VIC, Australia; Division of Pulmonary Medicine, Department of Medicine, Lausanne University Hospital (CHUV), University of Lausanne (UNIL), Lausanne, Switzerland; Laboratory of Host-Microbiota Interactions, Nencki Institute of Experimental Biology, Polish Academy of Sciences, Warsaw, Poland.
| | - Benjamin J Marsland
- Department of Immunology, Mucosal Immunology Research Group, School of Translational Medicine, Monash University, Melbourne, VIC, Australia; Division of Pulmonary Medicine, Department of Medicine, Lausanne University Hospital (CHUV), University of Lausanne (UNIL), Lausanne, Switzerland.
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9
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Aslam R, Herrles L, Aoun R, Pioskowik A, Pietrzyk A. Link between gut microbiota dysbiosis and childhood asthma: Insights from a systematic review. THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY. GLOBAL 2024; 3:100289. [PMID: 39105129 PMCID: PMC11298874 DOI: 10.1016/j.jacig.2024.100289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/02/2023] [Revised: 03/13/2024] [Accepted: 03/19/2024] [Indexed: 08/07/2024]
Abstract
Asthma, a chronic inflammatory disorder of the airways, is a prevalent childhood chronic disease with a substantial global health burden. The complex etiology and pathogenesis of asthma involve genetic and environmental factors, posing challenges in diagnosis, severity prediction, and therapeutic strategies. Recent studies have highlighted the significant role of the gut microbiota and its interaction with the immune system in the development of asthma. Dysbiosis, an imbalance in microbial composition, has been associated with respiratory diseases through the gut-lung axis. This axis is an interaction between the gut and lungs, allowing microbial metabolites to influence the host immune system. This systematic review examines the association between gut microbiota composition, measured using 16S rRNA sequencing, during infancy and childhood, and the subsequent development of atopic wheeze and asthma. The results suggest that higher alpha diversity of bacteria such as Bifidobacterium, Faecalibacterium, and Roseburia may have protective effects against asthmatic outcomes. Conversely, lower relative abundances of bacteria like Bacteroides and certain fungi, including Malassezia, were associated with asthma. These findings highlight the potential of early screening and risk assessment of gut microbiota to identify individuals at risk of asthma. Furthermore, investigations targeting gut microbiota, such as dietary modifications and probiotic supplementation, may hold promise for asthma prevention and management. Future research should focus on identifying specific microbial signatures associated with asthma susceptibility and further investigate approaches like fecal microbiota transplantation. Understanding the role of gut microbiota in asthma pathogenesis can contribute to early detection and development of interventions to mitigate the risk of asthmatic pathogenesis in childhood.
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Affiliation(s)
- Rabbiya Aslam
- Scientific Group of Microbiology and Parasitology and the Department of Microbiology, Faculty of Medicine, Jagiellonian University Medical College, Kraków, Poland
| | - Laura Herrles
- Scientific Group of Microbiology and Parasitology and the Department of Microbiology, Faculty of Medicine, Jagiellonian University Medical College, Kraków, Poland
| | - Raquel Aoun
- Scientific Group of Microbiology and Parasitology and the Department of Microbiology, Faculty of Medicine, Jagiellonian University Medical College, Kraków, Poland
| | - Anna Pioskowik
- Scientific Group of Microbiology and Parasitology and the Department of Microbiology, Faculty of Medicine, Jagiellonian University Medical College, Kraków, Poland
| | - Agata Pietrzyk
- Scientific Group of Microbiology and Parasitology and the Department of Microbiology, Faculty of Medicine, Jagiellonian University Medical College, Kraków, Poland
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10
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Jiang S, Cai M, Li D, Chen X, Chen X, Huang Q, Zhong C, Zheng X, Zhou D, Chen Z, Zhang L, Ching JY, Chen A, Lu S, Zhang L, Hu L, Liao Y, Li Y, He Z, Wu J, Huo H, Liang Y, Li W, Zou Y, Luo W, Ng SC, Chan FK, Chen X, Deng Y. Association of breast milk-derived arachidonic acid-induced infant gut dysbiosis with the onset of atopic dermatitis. Gut 2024:gutjnl-2024-332407. [PMID: 39084687 DOI: 10.1136/gutjnl-2024-332407] [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: 03/14/2024] [Accepted: 06/27/2024] [Indexed: 08/02/2024]
Abstract
OBJECTIVE The specific breast milk-derived metabolites that mediate host-microbiota interactions and contribute to the onset of atopic dermatitis (AD) remain unknown and require further investigation. DESIGN We enrolled 250 mother-infant pairs and collected 978 longitudinal faecal samples from infants from birth to 6 months of age, along with 243 maternal faecal samples for metagenomics. Concurrently, 239 corresponding breast milk samples were analysed for metabolomics. Animal and cellular experiments were conducted to validate the bioinformatics findings. RESULTS The clinical findings suggested that a decrease in daily breastfeeding duration was associated with a reduced incidence of AD. This observation inspired us to investigate the effects of breast milk-derived fatty acids. We found that high concentrations of arachidonic acid (AA), but not eicosapentaenoic acid (EPA) or docosahexaenoic acid, induced gut dysbiosis in infants. Further investigation revealed that four specific bacteria degraded mannan into mannose, consequently enhancing the mannan-dependent biosynthesis of O-antigen and lipopolysaccharide. Correlation analysis confirmed that in infants with AD, the abundance of Escherichia coli under high AA concentrations was positively correlated with some microbial pathways (eg, 'GDP-mannose-derived O-antigen and lipopolysaccharide biosynthesis'). These findings are consistent with those of the animal studies. Additionally, AA, but not EPA, disrupted the ratio of CD4/CD8 cells, increased skin lesion area and enhanced the proportion of peripheral Th2 cells. It also promoted IgE secretion and the biosynthesis of prostaglandins and leukotrienes in BALB/c mice fed AA following ovalbumin immunostimulation. Moreover, AA significantly increased IL-4 secretion in HaCaT cells costimulated with TNF-α and INF-γ. CONCLUSIONS This study demonstrates that AA is intimately linked to the onset of AD via gut dysbiosis.
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Affiliation(s)
- Suhua Jiang
- Department of paediatrics, The First People's Hospital of Foshan, Foshan, People's Republic of China
| | - Mengyun Cai
- Institute of translational medicine, The First People's Hospital of Foshan, Foshan, People's Republic of China
| | - Dingru Li
- Institute of translational medicine, The First People's Hospital of Foshan, Foshan, People's Republic of China
- South China University of Technology School of Biology and Biological Engineering, Guangzhou, Guangdong, People's Republic of China
| | - Xiangping Chen
- Institute of translational medicine, The First People's Hospital of Foshan, Foshan, People's Republic of China
| | - Xiaoqian Chen
- Department of paediatrics, The First People's Hospital of Foshan, Foshan, People's Republic of China
| | - Qitao Huang
- Department of obstetrics, The First People's Hospital of Foshan, Foshan, People's Republic of China
| | - Caimei Zhong
- Department of Dermatology, Shunde District Center for Prevention and Cure of Chronic Diseases, Foshan, China
| | - Xiufeng Zheng
- Department of Dermatology, Shunde Hospital, Southern Medical University, Lunjiao, Shunde, Foshan, People's Republic of China
| | - Dan Zhou
- Department of Breast Surgery, The First People's Hospital of Foshan, Foshan, People's Republic of China
| | - Zhiyan Chen
- Department of Breast Surgery, The First People's Hospital of Foshan, Foshan, People's Republic of China
| | - Lin Zhang
- Microbiota I-Center (MagIC), The Chinese University of Hong Kong, Hong Kong SAR, People's Republic of China
- Centre for Gut Microbiota Research, The Chinese University of Hong Kong, Hong Kong SAR, People's Republic of China
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong SAR, People's Republic of China
- Li Ka Shing Institute of Health Sciences, State Key Laboratory of Digestive Disease, Institute of Digestive Disease, The Chinse University of Hong Kong, Hong Kong SAR, People's Republic of China
| | - Jessica Yl Ching
- Microbiota I-Center (MagIC), The Chinese University of Hong Kong, Hong Kong SAR, People's Republic of China
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong SAR, People's Republic of China
| | - Ailing Chen
- Department of paediatrics, The First People's Hospital of Foshan, Foshan, People's Republic of China
| | - Shaoxia Lu
- Department of obstetrics, The First People's Hospital of Foshan, Foshan, People's Republic of China
| | - Lifang Zhang
- Institute of translational medicine, The First People's Hospital of Foshan, Foshan, People's Republic of China
| | - Ling Hu
- Institute of translational medicine, The First People's Hospital of Foshan, Foshan, People's Republic of China
| | - Yan Liao
- Department of obstetrics, The First People's Hospital of Foshan, Foshan, People's Republic of China
| | - Ying Li
- Department of paediatrics, The First People's Hospital of Foshan, Foshan, People's Republic of China
| | - Zhihua He
- Department of obstetrics, The First People's Hospital of Foshan, Foshan, People's Republic of China
| | - Jingjing Wu
- Department of obstetrics, The First People's Hospital of Foshan, Foshan, People's Republic of China
| | - Huiyi Huo
- Department of paediatrics, The First People's Hospital of Foshan, Foshan, People's Republic of China
| | - Yongqi Liang
- Department of paediatrics, The First People's Hospital of Foshan, Foshan, People's Republic of China
| | - Wanwen Li
- Department of paediatrics, The First People's Hospital of Foshan, Foshan, People's Republic of China
| | - Yanli Zou
- The Second People's Hospital of Foshan, Foshan, People's Republic of China
| | - Wei Luo
- Institute of translational medicine, The First People's Hospital of Foshan, Foshan, People's Republic of China
| | - Siew C Ng
- Microbiota I-Center (MagIC), The Chinese University of Hong Kong, Hong Kong SAR, People's Republic of China
- Centre for Gut Microbiota Research, The Chinese University of Hong Kong, Hong Kong SAR, People's Republic of China
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong SAR, People's Republic of China
- Li Ka Shing Institute of Health Sciences, State Key Laboratory of Digestive Disease, Institute of Digestive Disease, The Chinse University of Hong Kong, Hong Kong SAR, People's Republic of China
| | - Francis Kl Chan
- Microbiota I-Center (MagIC), The Chinese University of Hong Kong, Hong Kong SAR, People's Republic of China
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong SAR, People's Republic of China
| | - Xia Chen
- Central Laboratory of the Medical Research Center, The First Affiliated Hospital of Ningbo University, Ningbo, People's Republic of China
| | - Yuhua Deng
- Institute of translational medicine, The First People's Hospital of Foshan, Foshan, People's Republic of China
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11
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Gómez-García M, Moreno-Jimenez E, Morgado N, García-Sánchez A, Gil-Melcón M, Pérez-Pazos J, Estravís M, Isidoro-García M, Dávila I, Sanz C. The Role of the Gut and Airway Microbiota in Chronic Rhinosinusitis with Nasal Polyps: A Systematic Review. Int J Mol Sci 2024; 25:8223. [PMID: 39125792 PMCID: PMC11311313 DOI: 10.3390/ijms25158223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2024] [Revised: 07/22/2024] [Accepted: 07/24/2024] [Indexed: 08/12/2024] Open
Abstract
In recent years, there has been growing interest in understanding the potential role of microbiota dysbiosis or alterations in the composition and function of human microbiota in the development of chronic rhinosinusitis with nasal polyposis (CRSwNP). This systematic review evaluated the literature on CRSwNP and host microbiota for the last ten years, including mainly nasal bacteria, viruses, and fungi, following the PRISMA guidelines and using the major scientific publication databases. Seventy original papers, mainly from Asia and Europe, met the inclusion criteria, providing a comprehensive overview of the microbiota composition in CRSwNP patients and its implications for inflammatory processes in nasal polyps. This review also explores the potential impact of microbiota-modulating therapies for the CRSwNP treatment. Despite variability in study populations and methodologies, findings suggest that fluctuations in specific taxa abundance and reduced bacterial diversity can be accepted as critical factors influencing the onset or severity of CRSwNP. These microbiota alterations appear to be implicated in triggering cell-mediated immune responses, cytokine cascade changes, and defects in the epithelial barrier. Although further human studies are required, microbiota-modulating strategies could become integral to future combined CRSwNP treatments, complementing current therapies that mainly target inflammatory mediators and potentially improving patient outcomes.
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Affiliation(s)
- Manuel Gómez-García
- Institute for Biomedical Research of Salamanca (IBSAL), 37007 Salamanca, Spain; (M.G.-G.); (E.M.-J.); (N.M.); (A.G.-S.); (M.G.-M.); (J.P.-P.); (M.I.-G.); (I.D.); (C.S.)
- Pharmacogenetics and Precision Medicine Unit, Clinical Biochemistry Department, University Hospital of Salamanca, 37007 Salamanca, Spain
| | - Emma Moreno-Jimenez
- Institute for Biomedical Research of Salamanca (IBSAL), 37007 Salamanca, Spain; (M.G.-G.); (E.M.-J.); (N.M.); (A.G.-S.); (M.G.-M.); (J.P.-P.); (M.I.-G.); (I.D.); (C.S.)
- Department of Microbiology and Genetics, University of Salamanca, 37007 Salamanca, Spain
| | - Natalia Morgado
- Institute for Biomedical Research of Salamanca (IBSAL), 37007 Salamanca, Spain; (M.G.-G.); (E.M.-J.); (N.M.); (A.G.-S.); (M.G.-M.); (J.P.-P.); (M.I.-G.); (I.D.); (C.S.)
- Biomedical and Diagnostics Sciences Department, University of Salamanca, 37007 Salamanca, Spain
| | - Asunción García-Sánchez
- Institute for Biomedical Research of Salamanca (IBSAL), 37007 Salamanca, Spain; (M.G.-G.); (E.M.-J.); (N.M.); (A.G.-S.); (M.G.-M.); (J.P.-P.); (M.I.-G.); (I.D.); (C.S.)
- Biomedical and Diagnostics Sciences Department, University of Salamanca, 37007 Salamanca, Spain
- Results-Oriented Cooperative Research Networks in Health—Red de Enfermedades Inflamatorias, Carlos III Health Institute, 28220 Madrid, Spain
| | - María Gil-Melcón
- Institute for Biomedical Research of Salamanca (IBSAL), 37007 Salamanca, Spain; (M.G.-G.); (E.M.-J.); (N.M.); (A.G.-S.); (M.G.-M.); (J.P.-P.); (M.I.-G.); (I.D.); (C.S.)
- Otorhinolaryngology and Head and Neck Surgery Department, University Hospital of Salamanca, 37007 Salamanca, Spain
| | - Jacqueline Pérez-Pazos
- Institute for Biomedical Research of Salamanca (IBSAL), 37007 Salamanca, Spain; (M.G.-G.); (E.M.-J.); (N.M.); (A.G.-S.); (M.G.-M.); (J.P.-P.); (M.I.-G.); (I.D.); (C.S.)
- Pharmacogenetics and Precision Medicine Unit, Clinical Biochemistry Department, University Hospital of Salamanca, 37007 Salamanca, Spain
- Centre for Networked Biomedical Research in Cardiovascular Diseases (CIBERCV), Carlos III Health Institute, 28220 Madrid, Spain
| | - Miguel Estravís
- Institute for Biomedical Research of Salamanca (IBSAL), 37007 Salamanca, Spain; (M.G.-G.); (E.M.-J.); (N.M.); (A.G.-S.); (M.G.-M.); (J.P.-P.); (M.I.-G.); (I.D.); (C.S.)
- Results-Oriented Cooperative Research Networks in Health—Red de Enfermedades Inflamatorias, Carlos III Health Institute, 28220 Madrid, Spain
| | - María Isidoro-García
- Institute for Biomedical Research of Salamanca (IBSAL), 37007 Salamanca, Spain; (M.G.-G.); (E.M.-J.); (N.M.); (A.G.-S.); (M.G.-M.); (J.P.-P.); (M.I.-G.); (I.D.); (C.S.)
- Pharmacogenetics and Precision Medicine Unit, Clinical Biochemistry Department, University Hospital of Salamanca, 37007 Salamanca, Spain
- Results-Oriented Cooperative Research Networks in Health—Red de Enfermedades Inflamatorias, Carlos III Health Institute, 28220 Madrid, Spain
- Medicine Department, University of Salamanca, 37007 Salamanca, Spain
| | - Ignacio Dávila
- Institute for Biomedical Research of Salamanca (IBSAL), 37007 Salamanca, Spain; (M.G.-G.); (E.M.-J.); (N.M.); (A.G.-S.); (M.G.-M.); (J.P.-P.); (M.I.-G.); (I.D.); (C.S.)
- Biomedical and Diagnostics Sciences Department, University of Salamanca, 37007 Salamanca, Spain
- Results-Oriented Cooperative Research Networks in Health—Red de Enfermedades Inflamatorias, Carlos III Health Institute, 28220 Madrid, Spain
- Department of Allergy, University Hospital of Salamanca, 37007 Salamanca, Spain
| | - Catalina Sanz
- Institute for Biomedical Research of Salamanca (IBSAL), 37007 Salamanca, Spain; (M.G.-G.); (E.M.-J.); (N.M.); (A.G.-S.); (M.G.-M.); (J.P.-P.); (M.I.-G.); (I.D.); (C.S.)
- Department of Microbiology and Genetics, University of Salamanca, 37007 Salamanca, Spain
- Results-Oriented Cooperative Research Networks in Health—Red de Enfermedades Inflamatorias, Carlos III Health Institute, 28220 Madrid, Spain
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12
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Pirker AL, Vogl T. Development of systemic and mucosal immune responses against gut microbiota in early life and implications for the onset of allergies. FRONTIERS IN ALLERGY 2024; 5:1439303. [PMID: 39086886 PMCID: PMC11288972 DOI: 10.3389/falgy.2024.1439303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2024] [Accepted: 07/05/2024] [Indexed: 08/02/2024] Open
Abstract
The early microbial colonization of human mucosal surfaces is essential for the development of the host immune system. Already during pregnancy, the unborn child is prepared for the postnatal influx of commensals and pathogens via maternal antibodies, and after birth this protection is continued with antibodies in breast milk. During this critical window of time, which extends from pregnancy to the first year of life, each encounter with a microorganism can influence children's immune response and can have a lifelong impact on their life. For example, there are numerous links between the development of allergies and an altered gut microbiome. However, the exact mechanisms behind microbial influences, also extending to how viruses influence host-microbe interactions, are incompletely understood. In this review, we address the impact of infants' first microbial encounters, how the immune system develops to interact with gut microbiota, and summarize how an altered immune response could be implied in allergies.
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Affiliation(s)
| | - Thomas Vogl
- Center for Cancer Research, Medical University of Vienna, Vienna, Austria
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13
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Sun M, Lu F, Yu D, Wang Y, Chen P, Liu S. Respiratory diseases and gut microbiota: relevance, pathogenesis, and treatment. Front Microbiol 2024; 15:1358597. [PMID: 39081882 PMCID: PMC11286581 DOI: 10.3389/fmicb.2024.1358597] [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: 01/04/2024] [Accepted: 06/26/2024] [Indexed: 08/02/2024] Open
Abstract
Preclinical evidence has firmly established a bidirectional interaction among the lung, gut, and gut microbiome. There are many complex communication pathways between the lung and intestine, which affect each other's balance. Some metabolites produced by intestinal microorganisms, intestinal immune cells, and immune factors enter lung tissue through blood circulation and participate in lung immune function. Altered gut-lung-microbiome interactions have been identified in rodent models and humans of several lung diseases such as pulmonary fibrosis, chronic obstructive pulmonary disease, lung cancer, asthma, etc. Emerging evidence suggests that microbial therapies can prevent and treat respiratory diseases, but it is unclear whether this association is a simple correlation with the pathological mechanisms of the disease or the result of causation. In this review, we summarize the complex and critical link between the gut microbiota and the lung, as well as the influence and mechanism of the gut microbiota on respiratory diseases, and discuss the role of interventions such as prebiotics and fecal bacteria transplantation on respiratory diseases. To provide a reference for the rational design of large-scale clinical studies, the direct application of microbial therapy to respiratory-related diseases can reduce the incidence and severity of diseases and accompanying complications.
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Affiliation(s)
- Mengdi Sun
- Graduate School, Heilongjiang University of Chinese Medicine, Harbin, China
| | - Fang Lu
- Institute of Traditional Chinese Medicine, Heilongjiang University of Chinese Medicine, Harbin, China
| | - Donghua Yu
- Institute of Traditional Chinese Medicine, Heilongjiang University of Chinese Medicine, Harbin, China
| | - Yu Wang
- Institute of Traditional Chinese Medicine, Heilongjiang University of Chinese Medicine, Harbin, China
| | - Pingping Chen
- Institute of Traditional Chinese Medicine, Heilongjiang University of Chinese Medicine, Harbin, China
| | - Shumin Liu
- Institute of Traditional Chinese Medicine, Heilongjiang University of Chinese Medicine, Harbin, China
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14
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Heston SM, Hurst JH, Kelly MS. Understanding the influence of the microbiome on childhood infections. Expert Rev Anti Infect Ther 2024; 22:529-545. [PMID: 38605646 PMCID: PMC11464204 DOI: 10.1080/14787210.2024.2340664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2023] [Accepted: 04/04/2024] [Indexed: 04/13/2024]
Abstract
INTRODUCTION The microbiome is known to have a substantial impact on human health and disease. However, the impacts of the microbiome on immune system development, susceptibility to infectious diseases, and vaccine-elicited immune responses are emerging areas of interest. AREAS COVERED In this review, we provide an overview of development of the microbiome during childhood. We highlight available data suggesting that the microbiome is critical to maturation of the immune system and modifies susceptibility to a variety of infections during childhood and adolescence, including respiratory tract infections, Clostridioides difficile infection, and sexually transmitted infections. We discuss currently available and investigational therapeutics that have the potential to modify the microbiome to prevent or treat infections among children. Finally, we review the accumulating evidence that the gut microbiome influences vaccine-elicited immune responses among children. EXPERT OPINION Recent advances in sequencing technologies have led to an explosion of studies associating the human microbiome with the risk and severity of infectious diseases. As our knowledge of the extent to which the microbiome influences childhood infections continues to grow, microbiome-based diagnostics and therapeutics will increasingly be incorporated into clinical practice to improve the prevention, diagnosis, and treatment of infectious diseases among children.
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Affiliation(s)
- Sarah M Heston
- Pediatrics, Duke University School of Medicine, Durham, NC, UK
| | - Jillian H Hurst
- Pediatrics, Duke University School of Medicine, Durham, NC, UK
| | - Matthew S Kelly
- Pediatrics, Duke University School of Medicine, Durham, NC, UK
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15
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Schoos AMM. Atopic diseases-Diagnostics, mechanisms, and exposures. Pediatr Allergy Immunol 2024; 35:e14198. [PMID: 39016386 DOI: 10.1111/pai.14198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Revised: 06/30/2024] [Accepted: 07/04/2024] [Indexed: 07/18/2024]
Abstract
Epidemiological data suggest that atopic diseases begin in early life and that most cases present clinically during early childhood. The diseases are highly prevalent and increase as communities adopt western lifestyles. Disentangling the pathophysiological mechanisms leading to disease debut is necessary to identify beneficial/harmful exposures so that successful prevention and treatment can be generated. The objective of this review is to explore the definition of atopy and mechanisms of atopic diseases, and to investigate the importance of environmental factors in early life, prior to disease development. First, the distribution of sIgE levels in children is investigated, as this is one of the main criteria for the definition of atopy. Thereafter, it is explored how studies of parental atopic status, sensitization patterns, and early debut and severity of atopic dermatitis have substantiated the theory of an early-life window of opportunity for intervention that precedes the development of atopic diseases in childhood. Then, it is examined whether early-life exposures such as breastfeeding, dogs, cats, and house dust mites in the home perinatally constitute important influencers in this crucial time of life. Finally, it is discussed how these findings could be validated in randomized controlled trials, which might prepare the ground for improved diagnostics and prevention strategies to mitigate the current atopic pandemic.
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Affiliation(s)
- Ann-Marie Malby Schoos
- COPSAC, Copenhagen Prospective Studies on Asthma in Childhood, Herlev and Gentofte Hospital, University of Copenhagen, Copenhagen, Denmark
- Department of Pediatrics, Slagelse Hospital, Slagelse, Denmark
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
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16
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Sáez-Fuertes L, Kapravelou G, Grases-Pintó B, Bernabeu M, Knipping K, Garssen J, Bourdet-Sicard R, Castell M, Rodríguez-Lagunas MJ, Collado MC, Pérez-Cano FJ. Early-Life Supplementation Enhances Gastrointestinal Immunity and Microbiota in Young Rats. Foods 2024; 13:2058. [PMID: 38998564 PMCID: PMC11241808 DOI: 10.3390/foods13132058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2024] [Revised: 06/16/2024] [Accepted: 06/25/2024] [Indexed: 07/14/2024] Open
Abstract
Immunonutrition, which focuses on specific nutrients in breast milk and post-weaning diets, plays a crucial role in supporting infants' immune system development. This study explored the impact of maternal supplementation with Bifidobacterium breve M-16V and a combination of short-chain galacto-oligosaccharide (scGOS) and long-chain fructo-oligosaccharide (lcFOS) from pregnancy through lactation, extending into the early childhood of the offspring. The synbiotic supplementation's effects were examined at both mucosal and systemic levels. While the supplementation did not influence their overall growth, water intake, or food consumption, a trophic effect was observed in the small intestine, enhancing its weight, length, width, and microscopic structures. A gene expression analysis indicated a reduction in FcRn and Blimp1 and an increase in Zo1 and Tlr9, suggesting enhanced maturation and barrier function. Intestinal immunoglobulin (Ig) A levels remained unaffected, while cecal IgA levels decreased. The synbiotic supplementation led to an increased abundance of total bacteria and Ig-coated bacteria in the cecum. The abundance of Bifidobacterium increased in both the intestine and cecum. Short-chain fatty acid production decreased in the intestine but increased in the cecum due to the synbiotic supplementation. Systemically, the Ig profiles remained unaffected. In conclusion, maternal synbiotic supplementation during gestation, lactation, and early life is established as a new strategy to improve the maturation and functionality of the gastrointestinal barrier. Additionally, it participates in the microbiota colonization of the gut, leading to a healthier composition.
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Affiliation(s)
- Laura Sáez-Fuertes
- Physiology Section, Department of Biochemistry and Physiology, Faculty of Pharmacy and Food Science, University of Barcelona (UB), 08028 Barcelona, Spain; (L.S.-F.); (G.K.); (B.G.-P.); (M.C.); (F.J.P.-C.)
- Nutrition and Food Safety Research Institute (INSA-UB), 08921 Santa Coloma de Gramenet, Spain
| | - Garyfallia Kapravelou
- Physiology Section, Department of Biochemistry and Physiology, Faculty of Pharmacy and Food Science, University of Barcelona (UB), 08028 Barcelona, Spain; (L.S.-F.); (G.K.); (B.G.-P.); (M.C.); (F.J.P.-C.)
| | - Blanca Grases-Pintó
- Physiology Section, Department of Biochemistry and Physiology, Faculty of Pharmacy and Food Science, University of Barcelona (UB), 08028 Barcelona, Spain; (L.S.-F.); (G.K.); (B.G.-P.); (M.C.); (F.J.P.-C.)
- Nutrition and Food Safety Research Institute (INSA-UB), 08921 Santa Coloma de Gramenet, Spain
| | - Manuel Bernabeu
- Institute of Agrochemisty and Food Technology-National Research Council (IATA-CSIC), 46980 Valencia, Spain; (M.B.); (M.C.C.)
| | - Karen Knipping
- Danone Research & Innovation, 3584 Utrecht, The Netherlands; (K.K.); (J.G.)
- Division of Pharmacology, Faculty of Science, Utrecht Institute for Pharmaceutical Sciences, 3584 CG Utrecht, The Netherlands
| | - Johan Garssen
- Danone Research & Innovation, 3584 Utrecht, The Netherlands; (K.K.); (J.G.)
- Division of Pharmacology, Faculty of Science, Utrecht Institute for Pharmaceutical Sciences, 3584 CG Utrecht, The Netherlands
| | | | - Margarida Castell
- Physiology Section, Department of Biochemistry and Physiology, Faculty of Pharmacy and Food Science, University of Barcelona (UB), 08028 Barcelona, Spain; (L.S.-F.); (G.K.); (B.G.-P.); (M.C.); (F.J.P.-C.)
- Nutrition and Food Safety Research Institute (INSA-UB), 08921 Santa Coloma de Gramenet, Spain
- Center for Biomedical Research Network for the Physiopathology of Obesity and Nutrition (CIBEROBN), Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - María José Rodríguez-Lagunas
- Physiology Section, Department of Biochemistry and Physiology, Faculty of Pharmacy and Food Science, University of Barcelona (UB), 08028 Barcelona, Spain; (L.S.-F.); (G.K.); (B.G.-P.); (M.C.); (F.J.P.-C.)
- Nutrition and Food Safety Research Institute (INSA-UB), 08921 Santa Coloma de Gramenet, Spain
| | - María Carmen Collado
- Institute of Agrochemisty and Food Technology-National Research Council (IATA-CSIC), 46980 Valencia, Spain; (M.B.); (M.C.C.)
| | - Francisco José Pérez-Cano
- Physiology Section, Department of Biochemistry and Physiology, Faculty of Pharmacy and Food Science, University of Barcelona (UB), 08028 Barcelona, Spain; (L.S.-F.); (G.K.); (B.G.-P.); (M.C.); (F.J.P.-C.)
- Nutrition and Food Safety Research Institute (INSA-UB), 08921 Santa Coloma de Gramenet, Spain
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17
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Hick E, Suárez M, Rey A, Mantecón L, Fernández N, Solís G, Gueimonde M, Arboleya S. Personalized Nutrition with Banked Human Milk for Early Gut Microbiota Development: In Pursuit of the Perfect Match. Nutrients 2024; 16:1976. [PMID: 38999725 PMCID: PMC11243202 DOI: 10.3390/nu16131976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2024] [Revised: 06/17/2024] [Accepted: 06/19/2024] [Indexed: 07/14/2024] Open
Abstract
The correct initial colonization and establishment of the gut microbiota during the early stages of life is a key step, with long-lasting consequences throughout the entire lifespan of the individual. This process is affected by several perinatal factors; among them, feeding mode is known to have a critical role. Breastfeeding is the optimal nutrition for neonates; however, it is not always possible, especially in cases of prematurity or early pathology. In such cases, most commonly babies are fed with infant formulas in spite of the official nutritional and health international organizations' recommendation on the use of donated human milk through milk banks for these cases. However, donated human milk still does not totally match maternal milk in terms of infant growth and gut microbiota development. The present review summarizes the practices of milk banks and hospitals regarding donated human milk, its safety and quality, and the health outcomes in infants fed with donated human milk. Additionally, we explore different alternatives to customize pasteurized donated human milk with the aim of finding the perfect match between each baby and banked milk for promoting the establishment of a beneficial gut microbiota from the early stages of life.
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Affiliation(s)
- Emilia Hick
- Department of Microbiology and Biochemistry of Dairy Products, Instituto de Productos Lácteos de Asturias, Consejo Superior de Investigaciones Científicas (IPLA-CSIC), 33300 Villaviciosa, Spain
| | - Marta Suárez
- Pediatrics Service, Central University Hospital of Asturias (HUCA-SESPA), 33011 Oviedo, Spain
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), 33011 Oviedo, Spain
| | - Alejandra Rey
- Department of Microbiology and Biochemistry of Dairy Products, Instituto de Productos Lácteos de Asturias, Consejo Superior de Investigaciones Científicas (IPLA-CSIC), 33300 Villaviciosa, Spain
| | - Laura Mantecón
- Pediatrics Service, Central University Hospital of Asturias (HUCA-SESPA), 33011 Oviedo, Spain
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), 33011 Oviedo, Spain
| | - Nuria Fernández
- Pediatrics Service, University Hospital of Cabueñes (CAB-SESPA), 33394 Gijón, Spain
| | - Gonzalo Solís
- Pediatrics Service, Central University Hospital of Asturias (HUCA-SESPA), 33011 Oviedo, Spain
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), 33011 Oviedo, Spain
| | - Miguel Gueimonde
- Department of Microbiology and Biochemistry of Dairy Products, Instituto de Productos Lácteos de Asturias, Consejo Superior de Investigaciones Científicas (IPLA-CSIC), 33300 Villaviciosa, Spain
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), 33011 Oviedo, Spain
| | - Silvia Arboleya
- Department of Microbiology and Biochemistry of Dairy Products, Instituto de Productos Lácteos de Asturias, Consejo Superior de Investigaciones Científicas (IPLA-CSIC), 33300 Villaviciosa, Spain
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), 33011 Oviedo, Spain
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18
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Zhang J, Zheng X, Luo W, Sun B. Cross-domain microbiomes: the interaction of gut, lung and environmental microbiota in asthma pathogenesis. Front Nutr 2024; 11:1346923. [PMID: 38978703 PMCID: PMC11229079 DOI: 10.3389/fnut.2024.1346923] [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: 12/01/2023] [Accepted: 06/03/2024] [Indexed: 07/10/2024] Open
Abstract
Recent experimental and epidemiological studies underscore the vital interaction between the intestinal microbiota and the lungs, an interplay known as the "gut-lung axis". The significance of this axis has been further illuminated following the identification of intestinal microbial metabolites, such as short-chain fatty acids (SCFA), as key mediators in setting the tone of the immune system. Through the gut-lung axis, the gut microbiota and its metabolites, or allergens, are directly or indirectly involved in the immunomodulation of pulmonary diseases, thereby increasing susceptibility to allergic airway diseases such as asthma. Asthma is a complex outcome of the interplay between environmental factors and genetic predispositions. The concept of the gut-lung axis may offer new targets for the prevention and treatment of asthma. This review outlines the relationships between asthma and the respiratory microbiome, gut microbiome, and environmental microbiome. It also discusses the current advancements and applications of microbiomics, offering novel perspectives and strategies for the clinical management of chronic respiratory diseases like asthma.
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Affiliation(s)
- Jiale Zhang
- Department of Clinical Laboratory, National Center for Respiratory Medicine, National Clinical Research Center for Respiratory Disease, State Key Laboratory of Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
- Guangzhou Laboratory, Guangzhou, China
| | - Xianhui Zheng
- Department of Clinical Laboratory, National Center for Respiratory Medicine, National Clinical Research Center for Respiratory Disease, State Key Laboratory of Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
- Guangzhou Laboratory, Guangzhou, China
| | - Wenting Luo
- Department of Clinical Laboratory, National Center for Respiratory Medicine, National Clinical Research Center for Respiratory Disease, State Key Laboratory of Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
- Guangzhou Laboratory, Guangzhou, China
| | - Baoqing Sun
- Department of Clinical Laboratory, National Center for Respiratory Medicine, National Clinical Research Center for Respiratory Disease, State Key Laboratory of Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
- Guangzhou Laboratory, Guangzhou, China
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19
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Paciência I, Sharma N, Hugg TT, Rantala AK, Heibati B, Al-Delaimy WK, Jaakkola MS, Jaakkola JJ. The Role of Biodiversity in the Development of Asthma and Allergic Sensitization: A State-of-the-Science Review. ENVIRONMENTAL HEALTH PERSPECTIVES 2024; 132:66001. [PMID: 38935403 PMCID: PMC11218706 DOI: 10.1289/ehp13948] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Revised: 05/06/2024] [Accepted: 06/10/2024] [Indexed: 06/28/2024]
Abstract
BACKGROUND Changes in land use and climate change have been reported to reduce biodiversity of both the environment and human microbiota. These reductions in biodiversity may lead to inadequate and unbalanced stimulation of immunoregulatory circuits and, ultimately, to clinical diseases, such as asthma and allergies. OBJECTIVE We summarized available empirical evidence on the role of inner (gut, skin, and airways) and outer (air, soil, natural waters, plants, and animals) layers of biodiversity in the development of asthma, wheezing, and allergic sensitization. METHODS We conducted a systematic search in SciVerse Scopus, PubMed MEDLINE, and Web of Science up to 5 March 2024 to identify relevant human studies assessing the relationships between inner and outer layers of biodiversity and the risk of asthma, wheezing, or allergic sensitization. The protocol was registered in PROSPERO (CRD42022381725). RESULTS A total of 2,419 studies were screened and, after exclusions and a full-text review of 447 studies, 82 studies were included in the comprehensive, final review. Twenty-nine studies reported a protective effect of outer layer biodiversity in the development of asthma, wheezing, or allergic sensitization. There were also 16 studies suggesting an effect of outer layer biodiversity on increasing asthma, wheezing, or allergic sensitization. However, there was no clear evidence on the role of inner layer biodiversity in the development of asthma, wheezing, and allergic sensitization (13 studies reported a protective effect and 15 reported evidence of an increased risk). CONCLUSIONS Based on the reviewed literature, a future systematic review could focus more specifically on outer layer biodiversity and asthma. It is unlikely that association with inner layer biodiversity would have enough evidence for systematic review. Based on this comprehensive review, there is a need for population-based longitudinal studies to identify critical periods of exposure in the life course into adulthood and to better understand mechanisms linking environmental exposures and changes in microbiome composition, diversity, and/or function to development of asthma and allergic sensitization. https://doi.org/10.1289/EHP13948.
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Affiliation(s)
- Inês Paciência
- Center for Environmental and Respiratory Health Research, Population Health, University of Oulu, Oulu, Finland
- Biocenter Oulu, University of Oulu, Oulu, Finland
| | - Needhi Sharma
- University of California, San Diego, San Diego, California, USA
| | - Timo T. Hugg
- Center for Environmental and Respiratory Health Research, Population Health, University of Oulu, Oulu, Finland
- Biocenter Oulu, University of Oulu, Oulu, Finland
| | - Aino K. Rantala
- Center for Environmental and Respiratory Health Research, Population Health, University of Oulu, Oulu, Finland
- Biocenter Oulu, University of Oulu, Oulu, Finland
| | - Behzad Heibati
- Center for Environmental and Respiratory Health Research, Population Health, University of Oulu, Oulu, Finland
- Biocenter Oulu, University of Oulu, Oulu, Finland
| | | | - Maritta S. Jaakkola
- Center for Environmental and Respiratory Health Research, Population Health, University of Oulu, Oulu, Finland
- Biocenter Oulu, University of Oulu, Oulu, Finland
| | - Jouni J.K. Jaakkola
- Center for Environmental and Respiratory Health Research, Population Health, University of Oulu, Oulu, Finland
- Biocenter Oulu, University of Oulu, Oulu, Finland
- Finnish Meteorological Institute, Helsinki, Finland
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20
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Ekpruke CD, Alford R, Parker E, Silveyra P. Gonadal sex and chromosome complement influence the gut microbiome in a mouse model of allergic airway inflammation. Physiol Genomics 2024; 56:417-425. [PMID: 38640403 PMCID: PMC11368565 DOI: 10.1152/physiolgenomics.00003.2024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Revised: 04/10/2024] [Accepted: 04/17/2024] [Indexed: 04/21/2024] Open
Abstract
Evidence abounds that gut microbiome components are associated with sex disparities in the immune system. However, it remains unclear whether the observed sex disparity in asthma incidence is associated with sex-dependent differences in immune-modulating gut microbiota, and/or its influence on allergic airway inflammatory processes. Using a mouse model of house dust mite (HDM)-induced allergic inflammation and the four core genotypes (FCGs) model, we have previously reported sex differences in lung inflammatory phenotypes. Here, we investigated associations of gut microbiomes with these phenotypes by challenging FCG mice [mouse with female sex chromosome and male gonad (XXM), mouse with female sex chromosome and female gonad (XXF), mouse with male sex chromosome and male gonad (XYM), and mouse with male sex chromosome and female gonad (XYF); n = 7/group] with HDM (25 μg) or PBS intranasally for 5 wk and collecting fecal samples. We extracted fecal DNA and analyzed the 16S microbiome via Targeted Metagenomic Sequencing. We compared α and β diversity across genotypes and assessed the Firmicutes/Bacteroidetes (F/B) ratio. When comparing baseline and after exposure for the FCG, we found that the gut F/B ratio was only increased in the XXM genotype. We also found that α diversity was significantly increased in all FCG mice upon HDM challenge, with the highest increase in the XXF, and the lowest in the XXM genotypes. Similarly, β diversity of the microbial community was also affected by challenge in a gonad- and chromosome-dependent manner. In summary, our results indicated that HDM treatment, gonads, and sex chromosomes significantly influence the gut microbial community composition. We concluded that allergic lung inflammation may be affected by the gut microbiome in a sex-dependent manner involving both hormonal and genetic influences.NEW & NOTEWORTHY Recently, the gut microbiome and its role in chronic respiratory disease have been the subject of extensive research and the establishment of its involvement in immune functions. Using the FCG mouse model, our findings revealed the influence of gonads and sex chromosomes on the microbial community structure before and after exposure to HDM. Our data provide a potential new avenue to better understand mediators of sex disparities associated with allergic airway inflammation.
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Affiliation(s)
- Carolyn Damilola Ekpruke
- Department of Environmental and Occupational Health, School of Public Health Bloomington, Indiana University, Bloomington, Indiana, United States
| | - Rachel Alford
- Department of Environmental and Occupational Health, School of Public Health Bloomington, Indiana University, Bloomington, Indiana, United States
| | - Erik Parker
- Department of Epidemiology and Biostatistics, Biostatistics Consulting Center, School of Public Health, Indiana University, Bloomington, Indiana, United States
| | - Patricia Silveyra
- Department of Environmental and Occupational Health, School of Public Health Bloomington, Indiana University, Bloomington, Indiana, United States
- School of Medicine, Indiana University, Indianapolis, Indiana, United States
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21
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Wise SK, Hamzavi-Abedi Y, Hannikainen PA, Anand MP, Pitt T, Savoure M, Toskala E. Rhinitis Disease Burden and the Impact of Social Determinants of Health. THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY. IN PRACTICE 2024; 12:1449-1461.e1. [PMID: 38570070 DOI: 10.1016/j.jaip.2024.03.043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2023] [Revised: 03/19/2024] [Accepted: 03/22/2024] [Indexed: 04/05/2024]
Abstract
Social determinants of health (SDHs) have a substantial impact on patient care and outcomes globally, both in low- to middle-income countries and in high-income countries. In the clinic, lack of availability of diagnostic tools, inequities in access to care, and challenges obtaining and adhering to prescribed treatment plans may further compound these issues. This article addresses a case of rhinitis in the context of SDHs and inequities in care that may affect various communities and populations around the world. SDHs may include various aspects of one's financial means, education, access to medical care, environment and living situation, and community factors, each of which could play a role in the rhinitis disease manifestations, diagnosis, and management. Allergic and nonallergic rhinitis are considered from this perspective. Rhinitis epidemiology, disease burden, and risk factors are broadly addressed. Patient evaluation, diagnostic tests, and management options are also reviewed, and issues related to SDHs are noted. Finally, inequities in care, knowledge gaps, and unmet needs are highlighted. It is critical to consider SDHs and care inequities when evaluating and treating patients for rhinitis and other allergic conditions.
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Affiliation(s)
- Sarah K Wise
- Department of Otolaryngology-Head and Neck Surgery, Emory University, Atlanta, Ga.
| | - Yasmin Hamzavi-Abedi
- Departments of Pediatrics and Medicine, Division of Allergy and Immunology, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Great Neck, NY
| | | | - Mahesh Padukudru Anand
- Department of Respiratory Medicine, JSS Medical College, JSS Academy of Higher Education & Research, Mysore, Karnataka, India
| | - Tracy Pitt
- Department of Paediatrics, Humber River Hospital, University of Toronto, Toronto, Ontario, Canada
| | - Marine Savoure
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, Rennes, France
| | - Elina Toskala
- Department of Otolaryngology-Head and Neck Surgery, Thomas Jefferson University, Philadelphia, Pa
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22
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Schenzel A, Geiger A, Nendel E, Yang Z, Krammer S, Leberle A, Brunst AK, Trump S, Mittler S, Rauh M, Geppert CI, Tausche P, Hohenberger K, Rieker RJ, Schieweck O, Zundler S, Finotto S. Fiber rich food suppressed airway inflammation, GATA3 + Th2 cells, and FcεRIα+ eosinophils in asthma. Front Nutr 2024; 11:1367864. [PMID: 38757128 PMCID: PMC11097976 DOI: 10.3389/fnut.2024.1367864] [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: 01/09/2024] [Accepted: 04/15/2024] [Indexed: 05/18/2024] Open
Abstract
Background Allergic Asthma is a disease presenting various endotypes and no current therapies act curative but alleviate disease symptoms. Dietary interventions are gaining increasing importance in regulating immune responses. Furthermore, short chain fatty acids (SFCA), as the main products of dietary fiber's fermentation by the gut bacteria, ameliorate the pathogenesis and disease burden of different illnesses including asthma. Nevertheless, the connection and crosstalk between the gut and lung is poorly understood. Objective In this work, the role of high fiber diet on the development of allergic asthma at baseline and after exacerbation of disease induced by respiratory viruses was investigated. Methods Hereby, SCFA in serum of asthmatic and non-asthmatic pre-school children before and after airway disease symptoms were analyzed. Moreover, the effect of high fiber diet in vivo in a murine model of house dust mite extract (HDM) induced allergic asthma and in the end in isolated lung and spleen cells infected ex vivo with Rhinovirus was analyzed. Results In this study, a decrease of the SCFA 3-Hydroxybutyric acid in serum of asthmatic children after symptomatic episodes at convalescent visit as compared to asthmatic and control children at baseline visit was observed. In experimental asthma, in mice fed with high fiber diet, a reduced lung GATA3 + Th2 type mediated inflammation, mucus production and collagen deposition and expression of Fc epsilon receptor Ia (FcεRIa) in eosinophils was observed. By contrast, the CD8+ memory effector T cells were induced in the lungs of asthmatic mice fed with high fiber diet. Then, total lung cells from these asthmatic mice fed with either standard food or with fiber rich food were infected with RV ex vivo. Here, RV1b mRNA was found significantly reduced in the lung cells derived from fiber rich food fed mice as compared to those derived from standard food fed asthmatic mice. Looking for the mechanism, an increase in CD8+ T cells in RV infected spleen cells derived from fiber rich fed asthmatic mice, was observed. Conclusion Convalescent preschool asthmatic children after a symptomatic episode have less serum ß-Hydroxybutyric acid as compared to control and asthmatic children at baseline visit. Fiber rich diet associated with anti-inflammatory effects as well as anti-allergic effects by decreasing Type 2 and IgE mediated immune responses and inducing CD8+ memory effector T cells in a murine model of allergic asthma. Finally, ex vivo infection with Rhinovirus (RV) of total lung cells from asthmatic mice fed with fiber rich food led to a decreased RV load as compared to mice fed with standard food. Moreover, spleen cells derived from asthmatic mice fed with fiber rich food induced CD8+ T cells after ex vivo infection with RV. Clinical implications Dietary interventions with increased content in natural fibers like pectins would ameliorate asthma exacerbations. Moreover, respiratory infection in asthma downregulated SCFA in the gut contributing to asthma exacerbations.
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Affiliation(s)
- Alicia Schenzel
- Department of Molecular Pneumology, Friedrich-Alexander-University (FAU) Erlangen-Nürnberg, Universitätsklinikum Erlangen, Erlangen, Germany
| | - Adriana Geiger
- Department of Molecular Pneumology, Friedrich-Alexander-University (FAU) Erlangen-Nürnberg, Universitätsklinikum Erlangen, Erlangen, Germany
| | - Elvedina Nendel
- Department of Molecular Pneumology, Friedrich-Alexander-University (FAU) Erlangen-Nürnberg, Universitätsklinikum Erlangen, Erlangen, Germany
| | - Zuqin Yang
- Department of Molecular Pneumology, Friedrich-Alexander-University (FAU) Erlangen-Nürnberg, Universitätsklinikum Erlangen, Erlangen, Germany
| | - Susanne Krammer
- Department of Molecular Pneumology, Friedrich-Alexander-University (FAU) Erlangen-Nürnberg, Universitätsklinikum Erlangen, Erlangen, Germany
| | - Anna Leberle
- Department of Molecular Pneumology, Friedrich-Alexander-University (FAU) Erlangen-Nürnberg, Universitätsklinikum Erlangen, Erlangen, Germany
| | - Ann-Kathrin Brunst
- Department of Molecular Pneumology, Friedrich-Alexander-University (FAU) Erlangen-Nürnberg, Universitätsklinikum Erlangen, Erlangen, Germany
| | - Sonja Trump
- Department of Molecular Pneumology, Friedrich-Alexander-University (FAU) Erlangen-Nürnberg, Universitätsklinikum Erlangen, Erlangen, Germany
| | - Susanne Mittler
- Department of Molecular Pneumology, Friedrich-Alexander-University (FAU) Erlangen-Nürnberg, Universitätsklinikum Erlangen, Erlangen, Germany
| | - Manfred Rauh
- Children’s Hospital, Department of Allergy and Pneumology, Friedrich-Alexander-University (FAU) Erlangen-Nürnberg, Universitätsklinikum Erlangen, Erlangen, Germany
| | - Carol I. Geppert
- Institute of Pathology, Friedrich-Alexander-University (FAU) Erlangen-Nürnberg, Universitätsklinikum Erlangen, Erlangen, Germany
- Deutsches Zentrum für Immuntherapie (DZI), Erlangen, Germany
- Bavarian Cancer Research Center (BZKF), Erlangen, Germany
| | - Patrick Tausche
- Department of Molecular Pneumology, Friedrich-Alexander-University (FAU) Erlangen-Nürnberg, Universitätsklinikum Erlangen, Erlangen, Germany
| | - Katja Hohenberger
- Department of Molecular Pneumology, Friedrich-Alexander-University (FAU) Erlangen-Nürnberg, Universitätsklinikum Erlangen, Erlangen, Germany
| | - Ralf J. Rieker
- Institute of Pathology, Friedrich-Alexander-University (FAU) Erlangen-Nürnberg, Universitätsklinikum Erlangen, Erlangen, Germany
- Deutsches Zentrum für Immuntherapie (DZI), Erlangen, Germany
- Bavarian Cancer Research Center (BZKF), Erlangen, Germany
| | - Oliver Schieweck
- Laboratory of Clinic Medicine, Friedrich-Alexander-University (FAU) Erlangen-Nürnberg, Erlangen, Germany
| | - Sebastian Zundler
- Deutsches Zentrum für Immuntherapie (DZI), Erlangen, Germany
- Department of Internal Medicine 1, Friedrich-Alexander-University (FAU) Erlangen-Nürnberg, Universitätsklinikum Erlangen, Erlangen, Germany
| | - Susetta Finotto
- Department of Molecular Pneumology, Friedrich-Alexander-University (FAU) Erlangen-Nürnberg, Universitätsklinikum Erlangen, Erlangen, Germany
- Deutsches Zentrum für Immuntherapie (DZI), Erlangen, Germany
- Bavarian Cancer Research Center (BZKF), Erlangen, Germany
- Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), Erlangen, Germany
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23
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Lin TJ, Huang CC, Lee MC, Lee YP, Huang WC, Chuang HL, Wang IJ. Effects of Lactobacillus salivarius ssp. salicinius SA-03 Supplementation on Reversing Phthalate-Induced Asthma in Mice. Nutrients 2024; 16:1160. [PMID: 38674852 PMCID: PMC11054125 DOI: 10.3390/nu16081160] [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: 02/26/2024] [Revised: 04/02/2024] [Accepted: 04/07/2024] [Indexed: 04/28/2024] Open
Abstract
Probiotics may protect against asthma. We want to investigate whether probiotics can reverse the adverse effects of phthalate exposure on asthma. We selected the female offspring of BALB/c mice, born from pregnant female mice fed with diethylhexyl phthalate (DEHP). They were continuously administrated DEHP and Lactobacillus salivarius ssp. salicinius SA-03 when they were 5 weeks old, and ovalbumin (OVA) for asthma induction started at 6 weeks for 32 days. The mice were divided into four groups (n = 6/group): 1. control group (C), 2. OVA/DEHP group (OD), 3. OVA/DEHP/probiotics low-dose group (ODP-1X), and OVA/DEHP/probiotics high-dose group (ODP-5X). We found that the administration of probiotics significantly reduced the asthma severity of the mice, as well as serum IgE and IL-5. In the ODP-5X group, the proportion of CD4+ cells in the lung was reduced, whereas IL-10 in serum and CD8+ cells in BALF were increased. In histopathology, the ODP group showed reduced infiltration of inflammatory cells, bronchial epithelial cell hyperplasia, and tracheal mucus secretion. These results might indicate that high-dose probiotics may affect anti-inflammatory cytokines and reduce asthma-relative indicators. The above results may provide evidence that high-dose probiotics supplementation might play a modulating role in DEHP causes of allergic asthma in the pediatric animal model.
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Affiliation(s)
- Tien-Jen Lin
- Department of Anaesthesiology, Taipei Medical University-Wan Fang Hospital, Taipei City 116081, Taiwan;
- Division of Neurosurgery, Department of Surgery, School of Medicine, College of Medicine, Taipei Medical University, Taipei City 110301, Taiwan
| | - Chi-Chang Huang
- Graduate Institute of Sports Science, National Taiwan Sport University, Taoyuan City 333325, Taiwan; (C.-C.H.); (M.-C.L.)
| | - Mon-Chien Lee
- Graduate Institute of Sports Science, National Taiwan Sport University, Taoyuan City 333325, Taiwan; (C.-C.H.); (M.-C.L.)
| | - Yen-Peng Lee
- Graduate Institute of Veterinary Pathobiology, College of Veterinary Medicine, National Chung Hsing University, Taichung City 402202, Taiwan;
| | - Wen-Chung Huang
- Graduate Institute of Health Industry Technology, Chang Gung University of Science and Technology, Taoyuan 333324, Taiwan;
| | - Hsiao-Li Chuang
- National Laboratory Animal Center, National Applied Research Laboratories Research Institute, Taipei 115202, Taiwan;
| | - I-Jen Wang
- Department of Pediatrics, Taipei Hospital, Ministry of Health and Welfare, New Taipei City 242033, Taiwan
- School of Medicine, National Yang Ming Chiao Tung University, Taipei 112304, Taiwan
- College of Public Health, China Medical University, Taichung 400439, Taiwan
- National Institutes of Environmental Health Sciences, National Health Research Institutes, Miaoli 350401, Taiwan
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24
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Wiley KS, Gregg AM, Fox MM, Lagishetty V, Sandman CA, Jacobs JP, Glynn LM. Contact with caregivers is associated with composition of the infant gastrointestinal microbiome in the first 6 months of life. AMERICAN JOURNAL OF BIOLOGICAL ANTHROPOLOGY 2024; 183:e24858. [PMID: 37804008 PMCID: PMC10922139 DOI: 10.1002/ajpa.24858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Revised: 08/18/2023] [Accepted: 09/24/2023] [Indexed: 10/08/2023]
Abstract
OBJECTIVES Little is known about how physical contact at birth and early caregiving environments influence the colonization of the infant gastrointestinal microbiome. We investigated how infant contact with caregivers at birth and within the first 2 weeks of life relates to the composition of the gastrointestinal microbiome in a sample of U.S. infants (n = 60). METHODS Skin-to-skin and physical contact with caregivers at birth and early caregiving environments were surveyed at 2 weeks postpartum. Stool samples were collected from infants at 2 weeks, 2, 6, and 12 months of age and underwent 16S rRNA sequencing as a proxy for the gastrointestinal microbiome. Associations between early caregiving environments and alpha and beta diversity, and differential abundance of bacteria at the genus level were assessed using PERMANOVA, and negative binomial mixed models in DEseq2. RESULTS Time in physical contact with caregivers explained 10% of variation in beta diversity at 2 weeks' age. The number of caregivers in the first few weeks of life explained 9% of variation in beta diversity at 2 weeks and the number of individuals in physical contact at birth explained 11% of variation in beta diversity at 6 months. Skin-to-skin contact on the day of birth was positively associated with the abundance of eight genera. Infants held for by more individuals had greater abundance of eight genera. DISCUSSION Results reveal a potential mechanism (skin-to-skin and physical contact) by which caregivers influence the infant gastrointestinal microbiome. Our findings contribute to work exploring the social transmission of microbes.
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Affiliation(s)
- Kyle S Wiley
- Department of Anthropology, UCLA, Los Angeles, California, USA
- Department of Psychiatry & Biobehavioral Sciences, UCLA, Los Angeles, California, USA
| | - Andrew M Gregg
- The Vatche and Tamar Manoukian Division of Digestive Diseases, Department of Medicine, David Geffen School of Medicine at UCLA, Los Angeles, California, USA
| | - Molly M Fox
- Department of Anthropology, UCLA, Los Angeles, California, USA
- Department of Psychiatry & Biobehavioral Sciences, UCLA, Los Angeles, California, USA
| | - Venu Lagishetty
- The Vatche and Tamar Manoukian Division of Digestive Diseases, Department of Medicine, David Geffen School of Medicine at UCLA, Los Angeles, California, USA
- UCLA Microbiome Center, David Geffen School of Medicine at UCLA, Los Angeles, California, USA
- Division of Gastroenterology, Hepatology and Parenteral Nutrition, VA Greater Los Angeles Healthcare System, Los Angeles, California, USA
| | - Curt A Sandman
- Department of Psychiatry and Human Behavior, UC Irvine, Irvine, California, USA
| | - Jonathan P Jacobs
- The Vatche and Tamar Manoukian Division of Digestive Diseases, Department of Medicine, David Geffen School of Medicine at UCLA, Los Angeles, California, USA
- UCLA Microbiome Center, David Geffen School of Medicine at UCLA, Los Angeles, California, USA
- Division of Gastroenterology, Hepatology and Parenteral Nutrition, VA Greater Los Angeles Healthcare System, Los Angeles, California, USA
| | - Laura M Glynn
- Department of Psychology, Chapman University, Orange, California, USA
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25
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Perdijk O, Azzoni R, Marsland BJ. The microbiome: an integral player in immune homeostasis and inflammation in the respiratory tract. Physiol Rev 2024; 104:835-879. [PMID: 38059886 DOI: 10.1152/physrev.00020.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Revised: 11/07/2023] [Accepted: 11/30/2023] [Indexed: 12/08/2023] Open
Abstract
The last decade of microbiome research has highlighted its fundamental role in systemic immune and metabolic homeostasis. The microbiome plays a prominent role during gestation and into early life, when maternal lifestyle factors shape immune development of the newborn. Breast milk further shapes gut colonization, supporting the development of tolerance to commensal bacteria and harmless antigens while preventing outgrowth of pathogens. Environmental microbial and lifestyle factors that disrupt this process can dysregulate immune homeostasis, predisposing infants to atopic disease and childhood asthma. In health, the low-biomass lung microbiome, together with inhaled environmental microbial constituents, establishes the immunological set point that is necessary to maintain pulmonary immune defense. However, in disease perturbations to immunological and physiological processes allow the upper respiratory tract to act as a reservoir of pathogenic bacteria, which can colonize the diseased lung and cause severe inflammation. Studying these host-microbe interactions in respiratory diseases holds great promise to stratify patients for suitable treatment regimens and biomarker discovery to predict disease progression. Preclinical studies show that commensal gut microbes are in a constant flux of cell division and death, releasing microbial constituents, metabolic by-products, and vesicles that shape the immune system and can protect against respiratory diseases. The next major advances may come from testing and utilizing these microbial factors for clinical benefit and exploiting the predictive power of the microbiome by employing multiomics analysis approaches.
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Affiliation(s)
- Olaf Perdijk
- Department of Immunology, School of Translational Science, Monash University, Melbourne, Victoria, Australia
| | - Rossana Azzoni
- Department of Immunology, School of Translational Science, Monash University, Melbourne, Victoria, Australia
| | - Benjamin J Marsland
- Department of Immunology, School of Translational Science, Monash University, Melbourne, Victoria, Australia
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Smulders T, Van Der Schee MP, Maitland-Van Der Zee AH, Dikkers FG, Van Drunen CM. Influence of the gut and airway microbiome on asthma development and disease. Pediatr Allergy Immunol 2024; 35:e14095. [PMID: 38451070 DOI: 10.1111/pai.14095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Accepted: 02/07/2024] [Indexed: 03/08/2024]
Abstract
There are ample data to suggest that early-life dysbiosis of both the gut and/or airway microbiome can predispose a child to develop along a trajectory toward asthma. Although individual studies show clear associations between dysbiosis and asthma development, it is less clear what (collection of) bacterial species is mechanistically responsible for the observed effects. This is partly due to issues related to the asthma diagnosis and the broad spectrum of anatomical sites, sample techniques, and analysis protocols that are used in different studies. Moreover, there is limited attention for potential differences in the genetics of individuals that would affect the outcome of the interaction between the environment and that individual. Despite these challenges, the first bacterial components were identified that are able to affect the transcriptional state of human cells, ergo the immune system. Such molecules could in the future be the basis for intervention studies that are now (necessarily) restricted to a limited number of bacterial species. For this transition, it might be prudent to develop an ex vivo human model of a local mucosal immune system to better and safer explore the impact of such molecules. With this approach, we might move beyond association toward understanding of causality.
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Affiliation(s)
- Tamar Smulders
- Department of Otorhinolaryngology/Head and Neck Surgery, Amsterdam UMC location Vrije Universiteit Amsterdam, Amsterdam, Netherlands
- Department of Paediatric Pulmonary Medicine, Amsterdam UMC location University of Amsterdam, Amsterdam, Netherlands
| | - Marc P Van Der Schee
- Department of Paediatric Pulmonary Medicine, Amsterdam UMC location University of Amsterdam, Amsterdam, Netherlands
| | - Anke H Maitland-Van Der Zee
- Department of Paediatric Pulmonary Medicine, Amsterdam UMC location University of Amsterdam, Amsterdam, Netherlands
- Department of Pulmonary Medicine, Amsterdam UMC location University of Amsterdam, Amsterdam, Netherlands
| | - Frederik G Dikkers
- Department of Otorhinolaryngology/Head and Neck Surgery, Amsterdam UMC location Vrije Universiteit Amsterdam, Amsterdam, Netherlands
| | - Cornelis M Van Drunen
- Department of Otorhinolaryngology/Head and Neck Surgery, Amsterdam UMC location Vrije Universiteit Amsterdam, Amsterdam, Netherlands
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Erçelik HC, Kaya V. The effects of fermented food consumption in pregnancy on neonatal and infant health: An integrative review. J Pediatr Nurs 2024; 75:173-179. [PMID: 38160470 DOI: 10.1016/j.pedn.2023.12.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Revised: 12/20/2023] [Accepted: 12/20/2023] [Indexed: 01/03/2024]
Abstract
OBJECTIVE This study was carried out to determine the effects of fermented food in maternal diet during pregnancy on neonatal and infant health. INTRODUCTION Fermented food consumption positively affects microbiota development. It is widely acknowledged that maternal microbiota is a crucial component in the microbiota formation of the newborn. However, the short-term and long-term effects of fermented food consumption during pregnancy on newborns/infants have not been fully investigated so far. INCLUSION CRITERIA The study included studies that were randomized controlled, quasi-experimental, pre-test and post-test controlled, cohort, descriptive and qualitative studies published in English with full-text access and with "moderate" or "strong" scores in quality assessment. METHODS The researchers conducted research on Pubmed, Google Scholar, Web of Science, Scopus, Clinical Keys, Cochrane and Ebsco-Host databases without any time limitation. RESULTS As a result, 1419 articles were reviewed and five studies were selected among which two studies demonstrated that fermented food consumption during pregnancy may reduce the risk of atopic dermatitis in the infant, and another study indicated that it may reduce the risk of food protein-induced allergic proctocolitis. One cohort study also reported that fermented food consumption during pregnancy improved sleep duration while another cohort study pointed out that it increased the birth weight of infants. CONCLUSION Evidence supports the positive effects of including fermented foods in pregnancy nutrition on neonatal and infant health. Fermented products can be added to the daily diet as an alternative to probiotic supplements. By adding these foods to the nutritional guidelines, awareness of pregnant women can be raised.
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Affiliation(s)
- Hamide Coşkun Erçelik
- Süleyman Demirel University Research and Application Hospital, Health Research and Application Center, Isparta, Turkey; Pamukkale University Health Science Faculty, Department of Pediatric Nursing, Denizli, Turkey.
| | - Vildan Kaya
- Süleyman Demirel University Research and Application Hospital, Health Research and Application Center, Isparta, Turkey.
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Lee SH, Lee JH, Lee SW. Application of Microbiome-Based Therapies in Chronic Respiratory Diseases. J Microbiol 2024; 62:201-216. [PMID: 38635003 DOI: 10.1007/s12275-024-00124-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Revised: 02/02/2024] [Accepted: 02/16/2024] [Indexed: 04/19/2024]
Abstract
The application of microbiome-based therapies in various areas of human disease has recently increased. In chronic respiratory disease, microbiome-based clinical applications are considered compelling options due to the limitations of current treatments. The lung microbiome is ecologically dynamic and affected by various conditions, and dysbiosis is associated with disease severity, exacerbation, and phenotype as well as with chronic respiratory disease endotype. However, it is not easy to directly modulate the lung microbiome. Additionally, studies have shown that chronic respiratory diseases can be improved by modulating gut microbiome and administrating metabolites. Although the composition, diversity, and abundance of the microbiome between the gut and lung are considerably different, modulation of the gut microbiome could improve lung dysbiosis. The gut microbiome influences that of the lung via bacterial-derived components and metabolic degradation products, including short-chain fatty acids. This phenomenon might be associated with the cross-talk between the gut microbiome and lung, called gut-lung axis. There are multiple alternatives to modulate the gut microbiome, such as prebiotics, probiotics, and postbiotics ingestion and fecal material transplantation. Several studies have shown that high-fiber diets, for example, present beneficial effects through the production of short-chain fatty acids. Additionally, genetically modified probiotics to secrete some beneficial molecules might also be utilized to treat chronic respiratory diseases. Further studies on microbial modulation to regulate immunity and potentiate conventional pharmacotherapy will improve microbiome modulation techniques, which will develop as a new therapeutic area in chronic respiratory diseases.
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Affiliation(s)
- Se Hee Lee
- Department of Pulmonology, Allergy and Critical Care Medicine, CHA Bundang Medical Center, CHA University, Seongnam, 13496, Republic of Korea
| | - Jang Ho Lee
- Department of Pulmonary and Critical Care Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, Republic of Korea
| | - Sei Won Lee
- Department of Pulmonary and Critical Care Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, Republic of Korea.
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Rodriguez KA, Gurung M, Talatala R, Rearick JR, Ruebel ML, Stephens KE, Yeruva L. The Role of Early Life Gut Mycobiome on Child Health. Adv Nutr 2024; 15:100185. [PMID: 38311313 PMCID: PMC10907404 DOI: 10.1016/j.advnut.2024.100185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Revised: 01/30/2024] [Accepted: 01/31/2024] [Indexed: 02/10/2024] Open
Abstract
The human gut microbiota is composed of bacteria (microbiota or microbiome), fungi (mycobiome), viruses, and archaea, but most of the research is primarily focused on the bacterial component of this ecosystem. Besides bacteria, fungi have been shown to play a role in host health and physiologic functions. However, studies on mycobiota composition during infancy, the factors that might shape infant gut mycobiota, and implications to child health and development are limited. In this review, we discuss the factors likely shaping gut mycobiota, interkingdom interactions, and associations with child health outcomes and highlight the gaps in our current knowledge of this ecosystem.
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Affiliation(s)
- Kayleigh Amber Rodriguez
- Arkansas Children's Research Institute, Little Rock, AR, United States; University of Arkansas for Medical Sciences, Department of Pediatrics, Division of Infectious Diseases, Little Rock, AR, United States
| | - Manoj Gurung
- Microbiome and Metabolism Research Unit, United States Department of Agriculture, Agriculture Research Service, Little Rock, AR, United States; Arkansas Children's Nutrition Center, Little Rock, AR, United States
| | - Rachelanne Talatala
- Microbiome and Metabolism Research Unit, United States Department of Agriculture, Agriculture Research Service, Little Rock, AR, United States
| | - Jolene R Rearick
- Microbiome and Metabolism Research Unit, United States Department of Agriculture, Agriculture Research Service, Little Rock, AR, United States; Arkansas Children's Nutrition Center, Little Rock, AR, United States
| | - Meghan L Ruebel
- Microbiome and Metabolism Research Unit, United States Department of Agriculture, Agriculture Research Service, Little Rock, AR, United States; Arkansas Children's Nutrition Center, Little Rock, AR, United States
| | - Kimberly E Stephens
- Arkansas Children's Research Institute, Little Rock, AR, United States; University of Arkansas for Medical Sciences, Department of Pediatrics, Division of Infectious Diseases, Little Rock, AR, United States.
| | - Laxmi Yeruva
- Microbiome and Metabolism Research Unit, United States Department of Agriculture, Agriculture Research Service, Little Rock, AR, United States; Arkansas Children's Nutrition Center, Little Rock, AR, United States.
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Chu XJ, Song DD, Zhou MH, Chen XZ, Chu N, Li M, Li BZ, Liu SH, Hou S, Wu JB, Gong L. Perturbations in gut and respiratory microbiota in COVID-19 and influenza patients: a systematic review and meta-analysis. Front Med (Lausanne) 2024; 11:1301312. [PMID: 38405190 PMCID: PMC10884097 DOI: 10.3389/fmed.2024.1301312] [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: 09/27/2023] [Accepted: 01/17/2024] [Indexed: 02/27/2024] Open
Abstract
Objectives Coronavirus disease-19 (COVID-19)/influenza poses unprecedented challenges to the global economy and healthcare services. Numerous studies have described alterations in the microbiome of COVID-19/influenza patients, but further investigation is needed to understand the relationship between the microbiome and these diseases. Herein, through systematic comparison between COVID-19 patients, long COVID-19 patients, influenza patients, no COVID-19/influenza controls and no COVID-19/influenza patients, we conducted a comprehensive review to describe the microbial change of respiratory tract/digestive tract in COVID-19/influenza patients. Methods We systematically reviewed relevant literature by searching the PubMed, Embase, and Cochrane Library databases from inception to August 12, 2023. We conducted a comprehensive review to explore microbial alterations in patients with COVID-19/influenza. In addition, the data on α-diversity were summarized and analyzed by meta-analysis. Results A total of 134 studies comparing COVID-19 patients with controls and 18 studies comparing influenza patients with controls were included. The Shannon indices of the gut and respiratory tract microbiome were slightly decreased in COVID-19/influenza patients compared to no COVID-19/influenza controls. Meanwhile, COVID-19 patients with more severe symptoms also exhibited a lower Shannon index versus COVID-19 patients with milder symptoms. The intestinal microbiome of COVID-19 patients was characterized by elevated opportunistic pathogens along with reduced short-chain fatty acid (SCFAs)-producing microbiota. Moreover, Enterobacteriaceae (including Escherichia and Enterococcus) and Lactococcus, were enriched in the gut and respiratory tract of COVID-19 patients. Conversely, Haemophilus and Neisseria showed reduced abundance in the respiratory tract of both COVID-19 and influenza patients. Conclusion In this systematic review, we identified the microbiome in COVID-19/influenza patients in comparison with controls. The microbial changes in influenza and COVID-19 are partly similar.
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Affiliation(s)
- Xiu-Jie Chu
- Department of Acute Infectious Disease Prevention and Control, Anhui Provincial Center for Disease Control and Prevention, Hefei, Anhui, China
| | - Dan-Dan Song
- Department of Acute Infectious Disease Prevention and Control, Anhui Provincial Center for Disease Control and Prevention, Hefei, Anhui, China
| | - Ming-Hua Zhou
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, Anhui, China
| | - Xiu-Zhi Chen
- Department of Acute Infectious Disease Prevention and Control, Anhui Provincial Center for Disease Control and Prevention, Hefei, Anhui, China
| | - Na Chu
- Department of Acute Infectious Disease Prevention and Control, Anhui Provincial Center for Disease Control and Prevention, Hefei, Anhui, China
| | - Ming Li
- Department of Acute Infectious Disease Prevention and Control, Anhui Provincial Center for Disease Control and Prevention, Hefei, Anhui, China
| | - Bao-Zhu Li
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, Anhui, China
| | - Song-Hui Liu
- School of Public Health, Bengbu Medical College, Bengbu, Anhui, China
| | - Sai Hou
- Department of Acute Infectious Disease Prevention and Control, Anhui Provincial Center for Disease Control and Prevention, Hefei, Anhui, China
| | - Jia-Bing Wu
- Department of Acute Infectious Disease Prevention and Control, Anhui Provincial Center for Disease Control and Prevention, Hefei, Anhui, China
| | - Lei Gong
- Department of Acute Infectious Disease Prevention and Control, Anhui Provincial Center for Disease Control and Prevention, Hefei, Anhui, China
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Deflorin N, Ehlert U, Amiel Castro RT. Associations of maternal prenatal psychological symptoms and saliva cortisol with neonatal meconium microbiota: A cross-sectional study. Prog Neuropsychopharmacol Biol Psychiatry 2024; 129:110895. [PMID: 37951341 DOI: 10.1016/j.pnpbp.2023.110895] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 11/06/2023] [Accepted: 11/07/2023] [Indexed: 11/13/2023]
Abstract
Alterations in the diversity and relative abundances of the gut microbiome have been associated with a broad spectrum of medical conditions. Maternal psychological symptoms during pregnancy may impact on offspring development by altering the maternal and the foetal gut microbiome. We aimed to investigate whether self-reported maternal anxiety, depressive symptoms, and distress as well as saliva cortisol levels in late pregnancy alter the bacterial composition of the infant's meconium. METHODS A total of N = 100 mother-infant pairs were included. Maternal psychological symptoms were measured using psychological questionnaires (EPDS, PSS-10, STAI) at 34-36 weeks gestation and salivary cortisol was measured at 34-36 and 38 weeks gestation. Infant meconium samples were collected in the first five days postpartum and analysed using 16S rRNA amplicon sequencing. RESULTS Correlations showed that lower alpha diversity of the meconium microbiome was significantly associated with increased maternal prenatal depressive symptoms in late gestation (τ = -0.15, p = .04). Increased saliva cortisol AUCg at T2 was significantly related to higher beta diversity of the meconium samples (Pr(>F) = 0.003*). Pseudomonas was the most abundant phylum and was associated with maternal saliva cortisol total decline. No other associations were found. CONCLUSIONS Maternal prenatal depressive symptoms are associated with infant faecal microbiome alpha diversity, whereas maternal saliva cortisol AUCg is linked to increased beta diversity and total decline related to increased Psuedomonas. Future studies are warranted to understand how these microbiota community alterations are linked to child health outcomes.
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Affiliation(s)
- Nadia Deflorin
- Department of Clinical Psychology and Psychotherapy, Institute of Psychology, University of Zurich, Switzerland
| | - Ulrike Ehlert
- Department of Clinical Psychology and Psychotherapy, Institute of Psychology, University of Zurich, Switzerland
| | - Rita T Amiel Castro
- Department of Clinical Psychology and Psychotherapy, Institute of Psychology, University of Zurich, Switzerland.
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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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Guo Z, Huang L, Lai S. Global knowledge mapping and emerging research trends in the microbiome and asthma: A bibliometric and visualized analysis using VOSviewer and CiteSpace. Heliyon 2024; 10:e24528. [PMID: 38304829 PMCID: PMC10831755 DOI: 10.1016/j.heliyon.2024.e24528] [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: 10/10/2023] [Revised: 01/10/2024] [Accepted: 01/10/2024] [Indexed: 02/03/2024] Open
Abstract
Background Numerous prior studies have extensively highlighted the significance of the microbiome in association with asthma. While several studies have concentrated on the asthma microbiome in previous research, there is currently a lack of publications that employ bibliometric methods to assess this area. Methods In this study, the Web of Science Core Collection database was utilized as the data source, and the SCI-EXPANDED index was employed to ensure that the retrieved data were comprehensive and accurate. All original research articles and review articles related to the correlation between asthma and the microbiome were systematically searched from the inception of the database until June 20, 2023. These articles were subsequently visualized and analyzed using VOSviewer and CiteSpace software. Results A total of 1366 relevant publications were acquired, indicating a consistent annual increase in global publications in the field. The United States and China emerged as the top two contributors to international publications. Among prolific authors, Susan V. Lynch achieved the highest publication record, with Hans Bisgaard and Jakob Stokholm sharing the second position. The majority of publications concentrated on allergy-related and microbiome areas, with a few comprehensive journals standing out. Journals with 40 or more publications included the Journal of Allergy and Clinical Immunology, Allergy, Frontiers in Immunology, and PLOS One. The top 5 cited journals were the Journal of Allergy and Clinical Immunology, PLOS One, American Journal of Respiratory and Critical Care Medicine, Clinical and Experimental Allergy, and Nature. Upon analyzing keywords, high-frequency terms, such as asthma, gut microbiota, microbiome, children, childhood asthma, allergy, risk, exposure, inflammation, diversity, and chain fatty acids emerged as representative terms in the field. Conclusion This study systematically presented a comprehensive overview of the literature regarding the association between asthma and the microbiome over the last two decades. Through a bibliometric perspective, the findings may assist researchers with a better understanding of the essential information in the field.
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Affiliation(s)
- ZhiFeng Guo
- Department of Respiratory and Critical Care Medicine, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, 362000, Fujian Province, China
| | - LingHong Huang
- Department of Endocrinology, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, 362000, Fujian Province, China
| | - SuMei Lai
- Stem Cell Laboratory, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, 362000, Fujian Province, China
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Parkin K, Palmer DJ, Verhasselt V, Amenyogbe N, Cooper MN, Christophersen CT, Prescott SL, Silva D, Martino D. Metagenomic Characterisation of the Gut Microbiome and Effect of Complementary Feeding on Bifidobacterium spp. in Australian Infants. Microorganisms 2024; 12:228. [PMID: 38276213 PMCID: PMC10819277 DOI: 10.3390/microorganisms12010228] [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: 11/17/2023] [Revised: 01/12/2024] [Accepted: 01/15/2024] [Indexed: 01/27/2024] Open
Abstract
Complementary feeding induces dramatic ecological shifts in the infant gut microbiota toward more diverse compositions and functional metabolic capacities, with potential implications for immune and metabolic health. The aim of this study was to examine whether the age at which solid foods are introduced differentially affects the microbiota in predominantly breastfed infants compared with predominantly formula-fed infants. We performed whole-genome shotgun metagenomic sequencing of infant stool samples from a cohort of six-month-old Australian infants enrolled in a nested study within the ORIGINS Project longitudinal birth cohort. Infants born preterm or those who had been administered antibiotics since birth were excluded. The taxonomic composition was highly variable among individuals at this age. Predominantly formula-fed infants exhibited a higher microbiome diversity than predominantly breastfed infants. Among the predominantly breastfed infants, the introduction of solid foods prior to five months of age was associated with higher alpha diversity than solid food introduction after six months of age, primarily due to the loss of Bifidobacterium infantis. In contrast, the age at which solid food was introduced was not associated with the overall change in diversity among predominantly formula-fed infants but was associated with compositional changes in Escherichia abundance. Examining the functional capacity of the microbiota in relation to these changes, we found that the introduction of solid foods after six months of age was associated with elevated one-carbon compound metabolic pathways in both breastfed and formula-fed infants, although the specific metabolic sub-pathways differed, likely reflecting different taxonomic compositions. Our findings suggest that the age of commencement of solid foods influences the gut microbiota composition differently in predominantly breastfed infants than in predominantly formula-fed infants.
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Affiliation(s)
- Kimberley Parkin
- Telethon Kids Institute, University of Western Australia, Nedlands, Perth, WA 6009, Australia; (K.P.)
- Medical School, University of Western Australia, Nedlands, Perth, WA 6009, Australia
| | - Debra J. Palmer
- Telethon Kids Institute, University of Western Australia, Nedlands, Perth, WA 6009, Australia; (K.P.)
- Medical School, University of Western Australia, Nedlands, Perth, WA 6009, Australia
| | - Valerie Verhasselt
- Telethon Kids Institute, University of Western Australia, Nedlands, Perth, WA 6009, Australia; (K.P.)
- Larsson-Rosenquist Foundation Centre for Immunology and Breastfeeding, Medical School, University of Western Australia, Nedlands, Perth, WA 6009, Australia
| | - Nelly Amenyogbe
- Telethon Kids Institute, University of Western Australia, Nedlands, Perth, WA 6009, Australia; (K.P.)
| | - Matthew N. Cooper
- Telethon Kids Institute, University of Western Australia, Nedlands, Perth, WA 6009, Australia; (K.P.)
| | - Claus T. Christophersen
- School of Molecular Life Sciences, Curtin University, Bentley, Perth, WA 6102, Australia
- School of Medical and Health Sciences, Edith Cowen University, Joondalup, Perth, WA 6027, Australia
| | - Susan L. Prescott
- Medical School, University of Western Australia, Nedlands, Perth, WA 6009, Australia
- School of Molecular Life Sciences, Curtin University, Bentley, Perth, WA 6102, Australia
- Joondalup Health Campus, Joondalup, Perth, WA 6027, Australia
- Nova Institute for Health, Baltimore, MD 21231, USA
- Department of Family and Community Medicine, University of Maryland School of Medicine, Baltimore, MD 21201, USA
- The ORIGINS Project, Telethon Kids Institute, Nedlands, Perth, WA 6009, Australia
| | - Desiree Silva
- Medical School, University of Western Australia, Nedlands, Perth, WA 6009, Australia
- School of Molecular Life Sciences, Curtin University, Bentley, Perth, WA 6102, Australia
- School of Medical and Health Sciences, Edith Cowen University, Joondalup, Perth, WA 6027, Australia
- Department of Family and Community Medicine, University of Maryland School of Medicine, Baltimore, MD 21201, USA
- The ORIGINS Project, Telethon Kids Institute, Nedlands, Perth, WA 6009, Australia
| | - David Martino
- Telethon Kids Institute, University of Western Australia, Nedlands, Perth, WA 6009, Australia; (K.P.)
- School of Molecular Science, University of Western Australia, Nedlands, Perth, WA 6009, Australia
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Zachariassen LF, Ebert MBB, Mentzel CMJ, Deng L, Krych L, Nielsen DS, Stokholm J, Hansen CHF. Cesarean section induced dysbiosis promotes type 2 immunity but not oxazolone-induced dermatitis in mice. Gut Microbes 2023; 15:2271151. [PMID: 37889696 PMCID: PMC10730161 DOI: 10.1080/19490976.2023.2271151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Accepted: 10/11/2023] [Indexed: 10/29/2023] Open
Abstract
Delivery by cesarean section (CS) is associated with an altered gut microbiota (GM) colonization and a higher risk of later chronic inflammatory diseases. Studies investigating the association between CS and atopic dermatitis (AD) are contradictive and often biased by confounding factors. The aim of this study was therefore to provide experimental evidence for the association between CS and AD in a mouse model and clarify the role of the GM changes associated with CS. It was hypothesized that CS-delivered mice, and human CS-GM transplanted mice develop severe dermatitis due to early dysbiosis. BALB/c mice delivered by CS or vaginally (VD) as well as BALB/c mice transplanted with GM from CS or VD human donors were challenged with oxazolone on the ear. The severity of dermatitis was evaluated by ear thickness and clinical and histopathological assessment which were similar between all groups. The immune response was assessed by serum IgE concentration, local cytokine response, and presence of immune cells in the draining lymph node. Both CS-delivered mice and mice inoculated with human CS-GM had a higher IgE concentration. A higher proportion of Th2 cells were also found in the CS-GM inoculated mice, but no differences were seen in the cytokine levels in the affected ears. In support of the experimental findings, a human cohort analysis from where the GM samples were obtained found that delivery mode did not affect the children's risk of developing AD. In conclusion, CS-GM enhanced a Th2 biased immune response, but had no effect on oxazolone-induced dermatitis in mice.
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Affiliation(s)
- Line Fisker Zachariassen
- Department of Veterinary and Animal Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Frederiksberg, Denmark
| | - Maria Bernadette Bergh Ebert
- Department of Veterinary and Animal Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Frederiksberg, Denmark
| | - Caroline Märta Junker Mentzel
- Department of Veterinary and Animal Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Frederiksberg, Denmark
| | - Ling Deng
- Department of Food Science, Faculty of Science, University of Copenhagen, Frederiksberg, Denmark
| | - Lukasz Krych
- Department of Food Science, Faculty of Science, University of Copenhagen, Frederiksberg, Denmark
| | - Dennis Sandris Nielsen
- Department of Food Science, Faculty of Science, University of Copenhagen, Frederiksberg, Denmark
| | - Jakob Stokholm
- Department of Food Science, Faculty of Science, University of Copenhagen, Frederiksberg, Denmark
- COPSAC, Copenhagen Prospective Studies on Asthma in Childhood, Herlev and Gentofte Hospital, Gentofte, Denmark
| | - Camilla Hartmann Friis Hansen
- Department of Veterinary and Animal Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Frederiksberg, Denmark
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Liu W, Jiang H, Liu X, Zheng Y, Liu Y, Pan F, Yu F, Li Z, Gu M, Du Q, Li X, Zhang H, Han D. Altered intestinal microbiota enhances adenoid hypertrophy by disrupting the immune balance. Front Immunol 2023; 14:1277351. [PMID: 38090578 PMCID: PMC10715246 DOI: 10.3389/fimmu.2023.1277351] [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: 08/14/2023] [Accepted: 11/06/2023] [Indexed: 12/18/2023] Open
Abstract
Introduction Adenoid hypertrophy (AH) is a common upper respiratory disorder in children. Disturbances of gut microbiota have been implicated in AH. However, the interplay of alteration of gut microbiome and enlarged adenoids remains elusive. Methods 119 AH children and 100 healthy controls were recruited, and microbiome profiling of fecal samples in participants was performed using 16S rRNA gene sequencing. Fecal microbiome transplantation (FMT) was conducted to verify the effects of gut microbiota on immune response in mice. Results In AH individuals, only a slight decrease of diversity in bacterial community was found, while significant changes of microbial composition were observed between these two groups. Compared with HCs, decreased abundances of Akkermansia, Oscillospiraceae and Eubacterium coprostanoligenes genera and increased abundances of Bacteroides, Faecalibacterium, Ruminococcus gnavus genera were revealed in AH patients. The abundance of Bacteroides remained stable with age in AH children. Notably, a microbial marker panel of 8 OTUs were identified, which discriminated AH from HC individuals with an area under the curve (AUC) of 0.9851 in the discovery set, and verified in the geographically different validation set, achieving an AUC of 0.9782. Furthermore, transfer of mice with fecal microbiota from AH patients dramatically reduced the proportion of Treg subsets within peripheral blood and nasal-associated lymphoid tissue (NALT) and promoted the expansion of Th2 cells in NALT. Conclusion These findings highlight the effect of the altered gut microbiota in the AH pathogenesis.
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Affiliation(s)
- Wenxin Liu
- Department of Clinical Laboratory, Shanghai Children’s Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
- Institute of Pediatric Infection, Immunity, and Critical Care Medicine, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Huier Jiang
- Department of Clinical Laboratory, Shanghai Children’s Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
- Institute of Pediatric Infection, Immunity, and Critical Care Medicine, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Xiling Liu
- Shanghai Key Laboratory of Forensic Medicine, Shanghai Forensic Service Platform, Academy of Forensic Science, Ministry of Justice, Shanghai, China
| | - Yue Zheng
- Department of Clinical Laboratory, Shanghai Children’s Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
- Institute of Pediatric Infection, Immunity, and Critical Care Medicine, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Yanan Liu
- Department of Clinical Laboratory, Shanghai Children’s Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
- Institute of Pediatric Infection, Immunity, and Critical Care Medicine, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Fen Pan
- Department of Clinical Laboratory, Shanghai Children’s Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
- Institute of Pediatric Infection, Immunity, and Critical Care Medicine, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Fangyuan Yu
- Department of Clinical Laboratory, Shanghai Children’s Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
- Institute of Pediatric Infection, Immunity, and Critical Care Medicine, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Zhi Li
- Department of Pathology, Shanghai Children’s Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Meizhen Gu
- Department of Otolaryngology-Head and Neck Surgery, Shanghai Children’s Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Qingqing Du
- Department of Clinical Laboratory, Shanghai Children’s Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
- Institute of Pediatric Infection, Immunity, and Critical Care Medicine, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Xiaoyan Li
- Department of Otolaryngology-Head and Neck Surgery, Shanghai Children’s Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Hong Zhang
- Department of Clinical Laboratory, Shanghai Children’s Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
- Institute of Pediatric Infection, Immunity, and Critical Care Medicine, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Dingding Han
- Department of Clinical Laboratory, Shanghai Children’s Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
- Institute of Pediatric Infection, Immunity, and Critical Care Medicine, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
- Medical School, Guangxi University, Nanning, China
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Wallen-Russell C, Pearlman N, Wallen-Russell S, Cretoiu D, Thompson DC, Voinea SC. A Catastrophic Biodiversity Loss in the Environment Is Being Replicated on the Skin Microbiome: Is This a Major Contributor to the Chronic Disease Epidemic? Microorganisms 2023; 11:2784. [PMID: 38004795 PMCID: PMC10672968 DOI: 10.3390/microorganisms11112784] [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: 08/30/2023] [Revised: 10/16/2023] [Accepted: 11/08/2023] [Indexed: 11/26/2023] Open
Abstract
There has been a catastrophic loss of biodiversity in ecosystems across the world. A similar crisis has been observed in the human gut microbiome, which has been linked to "all human diseases affecting westernized countries". This is of great importance because chronic diseases are the leading cause of death worldwide and make up 90% of America's healthcare costs. Disease development is complex and multifactorial, but there is one part of the body's interlinked ecosystem that is often overlooked in discussions about whole-body health, and that is the skin microbiome. This is despite it being a crucial part of the immune, endocrine, and nervous systems and being continuously exposed to environmental stressors. Here we show that a parallel biodiversity loss of 30-84% has occurred on the skin of people in the developed world compared to our ancestors. Research has shown that dysbiosis of the skin microbiome has been linked to many common skin diseases and, more recently, that it could even play an active role in the development of a growing number of whole-body health problems, such as food allergies, asthma, cardiovascular diseases, and Parkinson's, traditionally thought unrelated to the skin. Damaged skin is now known to induce systemic inflammation, which is involved in many chronic diseases. We highlight that biodiversity loss is not only a common finding in dysbiotic ecosystems but also a type of dysbiosis. As a result, we make the case that biodiversity loss in the skin microbiome is a major contributor to the chronic disease epidemic. The link between biodiversity loss and dysbiosis forms the basis of this paper's focus on the subject. The key to understanding why biodiversity loss creates an unhealthy system could be highlighted by complex physics. We introduce entropy to help understand why biodiversity has been linked with ecosystem health and stability. Meanwhile, we also introduce ecosystems as being governed by "non-linear physics" principles-including chaos theory-which suggests that every individual part of any system is intrinsically linked and implies any disruption to a small part of the system (skin) could have a significant and unknown effect on overall system health (whole-body health). Recognizing the link between ecosystem health and human health allows us to understand how crucial it could be to maintain biodiversity across systems everywhere, from the macro-environment we inhabit right down to our body's microbiome. Further, in-depth research is needed so we can aid in the treatment of chronic diseases and potentially change how we think about our health. With millions of people currently suffering, research to help mitigate the crisis is of vital importance.
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Affiliation(s)
| | - Nancy Pearlman
- Ecology Center of Southern California, Los Angeles, CA 90035, USA;
| | | | - Dragos Cretoiu
- Department of Medical Genetics, Carol Davila University of Medicine and Pharmacy, 020021 Bucharest, Romania
- Fetal Medicine Excellence Research Center, Alessandrescu-Rusescu National Institute for Mother and Child Health, 011062 Bucharest, Romania
| | - Dana Claudia Thompson
- Fetal Medicine Excellence Research Center, Alessandrescu-Rusescu National Institute for Mother and Child Health, 011062 Bucharest, Romania
| | - Silviu Cristian Voinea
- Department of Surgical Oncology, Prof. Dr. Al. Trestioreanu Oncology Institute, Carol Davila University of Medicine and Pharmacy, 022328 Bucharest, Romania
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Cecchini L, Barmaz C, Cea MJC, Baeschlin H, Etter J, Netzer S, Bregy L, Marchukov D, Trigo NF, Meier R, Hirschi J, Wyss J, Wick A, Zingg J, Christensen S, Radan AP, Etter A, Müller M, Kaess M, Surbek D, Yilmaz B, Macpherson AJ, Sokollik C, Misselwitz B, Ganal-Vonarburg SC. The Bern Birth Cohort (BeBiCo) to study the development of the infant intestinal microbiota in a high-resource setting in Switzerland: rationale, design, and methods. BMC Pediatr 2023; 23:560. [PMID: 37946167 PMCID: PMC10637001 DOI: 10.1186/s12887-023-04198-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Accepted: 07/17/2023] [Indexed: 11/12/2023] Open
Abstract
BACKGROUND Microbiota composition is fundamental to human health with the intestinal microbiota undergoing critical changes within the first two years of life. The developing intestinal microbiota is shaped by maternal seeding, breast milk and its complex constituents, other nutrients, and the environment. Understanding microbiota-dependent pathologies requires a profound understanding of the early development of the healthy infant microbiota. METHODS Two hundred and fifty healthy pregnant women (≥20 weeks of gestation) from the greater Bern area will be enrolled at Bern University hospital's maternity department. Participants will be followed as mother-baby pairs at delivery, week(s) 1, 2, 6, 10, 14, 24, 36, 48, 96, and at years 5 and 10 after birth. Clinical parameters describing infant growth and development, morbidity, and allergic conditions as well as socio-economic, nutritional, and epidemiological data will be documented. Neuro-developmental outcomes and behavior will be assessed by child behavior checklists at and beyond 2 years of age. Maternal stool, milk, skin and vaginal swabs, infant stool, and skin swabs will be collected at enrolment and at follow-up visits. For the primary outcome, the trajectory of the infant intestinal microbiota will be characterized by 16S and metagenomic sequencing regarding composition, metabolic potential, and stability during the first 2 years of life. Secondary outcomes will assess the cellular and chemical composition of maternal milk, the impact of nutrition and environment on microbiota development, the maternal microbiome transfer at vaginal or caesarean birth and thereafter on the infant, and correlate parameters of microbiota and maternal milk on infant growth, development, health, and mental well-being. DISCUSSION The Bern birth cohort study will provide a detailed description and normal ranges of the trajectory of microbiota maturation in a high-resource setting. These data will be compared to data from low-resource settings such as from the Zimbabwe-College of Health-Sciences-Birth-Cohort study. Prospective bio-sampling and data collection will allow studying the association of the microbiota with common childhood conditions concerning allergies, obesity, neuro-developmental outcomes , and behaviour. Trial registration The trial has been registered at www. CLINICALTRIALS gov , Identifier: NCT04447742.
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Affiliation(s)
- Luca Cecchini
- Department for BioMedical Research (DBMR), Department of Visceral Surgery and Medicine, University of Bern, Inselspital, Bern University Hospital, Freiburgstr. 18, 3010, Bern, Switzerland
| | - Colette Barmaz
- Department for BioMedical Research (DBMR), Department of Visceral Surgery and Medicine, University of Bern, Inselspital, Bern University Hospital, Freiburgstr. 18, 3010, Bern, Switzerland
| | - Maria José Coloma Cea
- Department for BioMedical Research (DBMR), Department of Visceral Surgery and Medicine, University of Bern, Inselspital, Bern University Hospital, Freiburgstr. 18, 3010, Bern, Switzerland
| | - Hannah Baeschlin
- Department for BioMedical Research (DBMR), Department of Visceral Surgery and Medicine, University of Bern, Inselspital, Bern University Hospital, Freiburgstr. 18, 3010, Bern, Switzerland
| | - Julian Etter
- Department for BioMedical Research (DBMR), Department of Visceral Surgery and Medicine, University of Bern, Inselspital, Bern University Hospital, Freiburgstr. 18, 3010, Bern, Switzerland
| | - Stefanie Netzer
- Department for BioMedical Research (DBMR), Department of Visceral Surgery and Medicine, University of Bern, Inselspital, Bern University Hospital, Freiburgstr. 18, 3010, Bern, Switzerland
| | - Leonie Bregy
- Department for BioMedical Research (DBMR), Department of Visceral Surgery and Medicine, University of Bern, Inselspital, Bern University Hospital, Freiburgstr. 18, 3010, Bern, Switzerland
| | - Dmitrij Marchukov
- Department for BioMedical Research (DBMR), Department of Visceral Surgery and Medicine, University of Bern, Inselspital, Bern University Hospital, Freiburgstr. 18, 3010, Bern, Switzerland
| | - Nerea Fernandez Trigo
- Department for BioMedical Research (DBMR), Department of Visceral Surgery and Medicine, University of Bern, Inselspital, Bern University Hospital, Freiburgstr. 18, 3010, Bern, Switzerland
| | - Rachel Meier
- Department for BioMedical Research (DBMR), Department of Visceral Surgery and Medicine, University of Bern, Inselspital, Bern University Hospital, Freiburgstr. 18, 3010, Bern, Switzerland
| | - Jasmin Hirschi
- Department for BioMedical Research (DBMR), Department of Visceral Surgery and Medicine, University of Bern, Inselspital, Bern University Hospital, Freiburgstr. 18, 3010, Bern, Switzerland
| | - Jacqueline Wyss
- Department for BioMedical Research (DBMR), Department of Visceral Surgery and Medicine, University of Bern, Inselspital, Bern University Hospital, Freiburgstr. 18, 3010, Bern, Switzerland
| | - Andrina Wick
- Department for BioMedical Research (DBMR), Department of Visceral Surgery and Medicine, University of Bern, Inselspital, Bern University Hospital, Freiburgstr. 18, 3010, Bern, Switzerland
| | - Joelle Zingg
- Department for BioMedical Research (DBMR), Department of Visceral Surgery and Medicine, University of Bern, Inselspital, Bern University Hospital, Freiburgstr. 18, 3010, Bern, Switzerland
| | - Sandro Christensen
- Department for BioMedical Research (DBMR), Department of Visceral Surgery and Medicine, University of Bern, Inselspital, Bern University Hospital, Freiburgstr. 18, 3010, Bern, Switzerland
| | - Anda-Petronela Radan
- Department of Obstetrics and Gynaecology, Bern University Hospital, Inselspital, University of Bern, Friedbühlstrasse 19, 3010, Bern, Switzerland
| | - Annina Etter
- Department of Obstetrics and Gynaecology, Bern University Hospital, Inselspital, University of Bern, Friedbühlstrasse 19, 3010, Bern, Switzerland
| | - Martin Müller
- Department of Obstetrics and Gynaecology, Bern University Hospital, Inselspital, University of Bern, Friedbühlstrasse 19, 3010, Bern, Switzerland
| | - Michael Kaess
- University Hospital of Child and Adolescent Psychiatry and Psychotherapy, University of Bern, Bolligenstrasse 111, Haus A, 3000, Bern, Switzerland
| | - Daniel Surbek
- Department of Obstetrics and Gynaecology, Bern University Hospital, Inselspital, University of Bern, Friedbühlstrasse 19, 3010, Bern, Switzerland
| | - Bahtiyar Yilmaz
- Department for BioMedical Research (DBMR), Department of Visceral Surgery and Medicine, University of Bern, Inselspital, Bern University Hospital, Freiburgstr. 18, 3010, Bern, Switzerland
| | - Andrew J Macpherson
- Department for BioMedical Research (DBMR), Department of Visceral Surgery and Medicine, University of Bern, Inselspital, Bern University Hospital, Freiburgstr. 18, 3010, Bern, Switzerland
| | - Christiane Sokollik
- Division of Pediatric Gastroenterology, Hepatology and Nutrition, Children's Hospital, Inselspital, University of Bern, Freiburgstrasse 15, 3010, Bern, Switzerland
| | - Benjamin Misselwitz
- Department for BioMedical Research (DBMR), Department of Visceral Surgery and Medicine, University of Bern, Inselspital, Bern University Hospital, Freiburgstr. 18, 3010, Bern, Switzerland.
| | - Stephanie C Ganal-Vonarburg
- Department for BioMedical Research (DBMR), Department of Visceral Surgery and Medicine, University of Bern, Inselspital, Bern University Hospital, Freiburgstr. 18, 3010, Bern, Switzerland
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Gao S, Wang J. Maternal and infant microbiome: next-generation indicators and targets for intergenerational health and nutrition care. Protein Cell 2023; 14:807-823. [PMID: 37184065 PMCID: PMC10636639 DOI: 10.1093/procel/pwad029] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Accepted: 05/04/2023] [Indexed: 05/16/2023] Open
Abstract
Microbes are commonly sensitive to shifts in the physiological and pathological state of their hosts, including mothers and babies. From this perspective, the microbiome may be a good indicator for diseases during pregnancy and has the potential to be used for perinatal health monitoring. This is embodied in the application of microbiome from multi body sites for auxiliary diagnosis, early prediction, prolonged monitoring, and retrospective diagnosis of pregnancy and infant complications, as well as nutrition management and health products developments of mothers and babies. Here we summarized the progress in these areas and explained that the microbiome of different body sites is sensitive to different diseases and their microbial biomarkers may overlap between each other, thus we need to make a diagnosis prudently for those diseases. Based on the microbiome variances and additional anthropometric and physical data, individualized responses of mothers and neonates to meals and probiotics/prebiotics were predictable, which is of importance for precise nutrition and probiotics/prebiotics managements and developments. Although a great deal of encouraging performance was manifested in previous studies, the efficacy could be further improved by combining multi-aspect data such as multi-omics and time series analysis in the future. This review reconceptualizes maternal and infant health from a microbiome perspective, and the knowledge in it may inspire the development of new options for the prevention and treatment of adverse pregnancy outcomes and bring a leap forward in perinatal health care.
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Affiliation(s)
- Shengtao Gao
- College of Food Science & Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Jinfeng Wang
- College of Food Science & Nutritional Engineering, China Agricultural University, Beijing 100083, China
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40
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Pichichero ME. Variability of vaccine responsiveness in early life. Cell Immunol 2023; 393-394:104777. [PMID: 37866234 DOI: 10.1016/j.cellimm.2023.104777] [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: 06/15/2023] [Revised: 09/18/2023] [Accepted: 10/14/2023] [Indexed: 10/24/2023]
Abstract
Vaccinations in early life elicit variable antibody and cellular immune responses, sometimes leaving fully vaccinated children unprotected against life-threatening infectious diseases. Specific immune cell populations and immune networks may have a critical period of development and calibration in a window of opportunity occurring during the first 100 days of early life. Among the early life determinants of vaccine responses, this review will focus on modifiable factors involving development of the infant microbiota and metabolome: antibiotic exposure, breast versus formula feeding, and Caesarian section versus vaginal delivery of newborns. How microbiota may serve as natural adjuvants for vaccine responses and how microbiota-derived metabolites influence vaccine responses are also reviewed. Early life poor vaccine responsiveness can be linked to increased infection susceptibility because both phenotypes share similar immunity dysregulation profiles. An early life pre-vaccination endotype, when interventions have the highest potential for success, should be sought that predicts vaccine response trajectories.
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Affiliation(s)
- Michael E Pichichero
- Center for Infectious Diseases and Immunology, Research Institute, Rochester General Hospital, 1425 Portland Ave, Rochester, NY 14621, USA.
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Donald K, Finlay BB. Early-life interactions between the microbiota and immune system: impact on immune system development and atopic disease. Nat Rev Immunol 2023; 23:735-748. [PMID: 37138015 DOI: 10.1038/s41577-023-00874-w] [Citation(s) in RCA: 32] [Impact Index Per Article: 32.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/28/2023] [Indexed: 05/05/2023]
Abstract
Prenatal and early postnatal life represent key periods of immune system development. In addition to genetics and host biology, environment has a large and irreversible role in the immune maturation and health of an infant. One key player in this process is the gut microbiota, a diverse community of microorganisms that colonizes the human intestine. The diet, environment and medical interventions experienced by an infant determine the establishment and progression of the intestinal microbiota, which interacts with and trains the developing immune system. Several chronic immune-mediated diseases have been linked to an altered gut microbiota during early infancy. The recent rise in allergic disease incidence has been explained by the 'hygiene hypothesis', which states that societal changes in developed countries have led to reduced early-life microbial exposures, negatively impacting immunity. Although human cohort studies across the globe have established a correlation between early-life microbiota composition and atopy, mechanistic links and specific host-microorganism interactions are still being uncovered. Here, we detail the progression of immune system and microbiota maturation in early life, highlight the mechanistic links between microbes and the immune system, and summarize the role of early-life host-microorganism interactions in allergic disease development.
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Affiliation(s)
- Katherine Donald
- Michael Smith Laboratories, University of British Columbia, Vancouver, BC, Canada
- Department of Microbiology and Immunology, University of British Columbia, Vancouver, BC, Canada
| | - B Brett Finlay
- Michael Smith Laboratories, University of British Columbia, Vancouver, BC, Canada.
- Department of Microbiology and Immunology, University of British Columbia, Vancouver, BC, Canada.
- Department of Biochemistry and Molecular Biology, University of British Columbia, Vancouver, BC, Canada.
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Ng WZJ, van Hasselt J, Aggarwal B, Manoharan A. Association Between Adult Antibiotic Use, Microbial Dysbiosis and Atopic Conditions - A Systematic Review. J Asthma Allergy 2023; 16:1115-1132. [PMID: 37822520 PMCID: PMC10564082 DOI: 10.2147/jaa.s401755] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Accepted: 09/07/2023] [Indexed: 10/13/2023] Open
Abstract
Background Strong associations between early antibiotic exposure and increased risk of childhood allergies have been established. Antibiotics have the potential to induce microbial dysbiosis that may be linked to allergic conditions. This review examines the limited available evidence on the associations between adult antibiotic use, microbial dysbiosis and atopic conditions. Methods A systematic literature search was conducted using PubMed and Embase for relevant studies, published between 01-01-2000 and 08-17-2022. We searched for associations between antibiotic use, microbial dysbiosis, and allergic conditions in adults, defined as over 13 years of age for the purposes of this review. Results Twenty-one studies were analyzed, with the inclusion of four narrative reviews as scarce relevant literature was found when stricter selection criteria were employed. Relevant studies predominantly focused on asthma. Significant microbial differences were observed in most measures between healthy subjects and subjects with allergic conditions. However, no system-wise and strain-wise associations were evident. Notably, at the phyla level, the Bacillota and Pseudomonadota phyla were associated with asthmatics, while the Actinobacteria phylum was linked to healthy controls. Asthmatics tends to reflect upregulation in the Bacillota and Pseudomonadota phyla in both airway and gut microbiomes. Conclusion No compelling evidence could be found between adult antibiotic exposure, consequent microbial dysbiosis, and allergic conditions in adults. Our review is limited by scarce literature and therefore remains inconclusive. However, potential implications of antibiotic use impacting on allergic conditions justify additional research and heightened pharmacovigilance in this area.
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Affiliation(s)
- Wan Zhen Janice Ng
- School of Biological Sciences, Nanyang Technological University, Singapore, Singapore
| | | | - Bhumika Aggarwal
- Regional Respiratory Medical Affairs, GSK Plc, Singapore, Singapore
| | - Anand Manoharan
- Infectious Diseases Medical & Scientific Affairs, GSK, Mumbai, India
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Mihuta MS, Paul C, Borlea A, Roi CM, Pescari D, Velea-Barta OA, Mozos I, Stoian D. Connections between serum Trimethylamine N-Oxide (TMAO), a gut-derived metabolite, and vascular biomarkers evaluating arterial stiffness and subclinical atherosclerosis in children with obesity. Front Endocrinol (Lausanne) 2023; 14:1253584. [PMID: 37850094 PMCID: PMC10577381 DOI: 10.3389/fendo.2023.1253584] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Accepted: 09/12/2023] [Indexed: 10/19/2023] Open
Abstract
Introduction Childhood obesity leads to early subclinical atherosclerosis and arterial stiffness. Studying biomarkers like trimethylamine N-oxide (TMAO), linked to cardio-metabolic disorders in adults, is crucial to prevent long-term cardiovascular issues. Methods The study involved 70 children aged 4 to 18 (50 obese, 20 normal-weight). Clinical examination included BMI, waist measurements, puberty stage, the presence of acanthosis nigricans, and irregular menstrual cycles. Subclinical atherosclerosis was assessed by measuring the carotid intima-media thickness (CIMT), and the arterial stiffness was evaluated through surrogate markers like the pulse wave velocity (PWV), augmentation index (AIx), and peripheral and central blood pressures. The blood biomarkers included determining the values of TMAO, HOMA-IR, and other usual biomarkers investigating metabolism. Results The study detected significantly elevated levels of TMAO in obese children compared to controls. TMAO presented positive correlations to BMI, waist circumference and waist-to-height ratio and was also observed as an independent predictor of all three parameters. Significant correlations were observed between TMAO and vascular markers such as CIMT, PWV, and peripheral BP levels. TMAO independently predicts CIMT, PWV, peripheral BP, and central SBP levels, even after adding BMI, waist circumference, waist-to-height ratio, puberty development and age in the regression model. Obese children with high HOMA-IR presented a greater weight excess and significantly higher vascular markers, but TMAO levels did not differ significantly from the obese with HOMA-IR Conclusion Our study provides compelling evidence supporting the link between serum TMAO, obesity, and vascular damage in children. These findings highlight the importance of further research to unravel the underlying mechanisms of this connection.
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Affiliation(s)
- Monica Simina Mihuta
- Department of Doctoral Studies, Victor Babes University of Medicine and Pharmacy, Timisoara, Romania
- Center of Molecular Research in Nephrology and Vascular Disease, Faculty of Medicine, Victor Babes University of Medicine and Pharmacy, Timisoara, Romania
| | - Corina Paul
- Department of Pediatrics, Victor Babes University of Medicine and Pharmacy, Timisoara, Romania
| | - Andreea Borlea
- Center of Molecular Research in Nephrology and Vascular Disease, Faculty of Medicine, Victor Babes University of Medicine and Pharmacy, Timisoara, Romania
- 2nd Department of Internal Medicine, Victor Babes University of Medicine and Pharmacy, Timisoara, Romania
| | - Cristina Mihaela Roi
- Department of Doctoral Studies, Victor Babes University of Medicine and Pharmacy, Timisoara, Romania
- Center of Molecular Research in Nephrology and Vascular Disease, Faculty of Medicine, Victor Babes University of Medicine and Pharmacy, Timisoara, Romania
| | - Denisa Pescari
- Department of Doctoral Studies, Victor Babes University of Medicine and Pharmacy, Timisoara, Romania
| | - Oana-Alexandra Velea-Barta
- 3rd Department of Odontotherapy and Endodontics, Faculty of Dental Medicine, Victor Babes University of Medicine and Pharmacy, Timisoara, Romania
| | - Ioana Mozos
- Department of Functional Sciences—Pathophysiology, Center for Translational Research and Systems Medicine, Victor Babes University of Medicine and Pharmacy, Timisoara, Romania
| | - Dana Stoian
- Center of Molecular Research in Nephrology and Vascular Disease, Faculty of Medicine, Victor Babes University of Medicine and Pharmacy, Timisoara, Romania
- 2nd Department of Internal Medicine, Victor Babes University of Medicine and Pharmacy, Timisoara, Romania
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Nygaard S, Gerlif K, Bundgaard-Nielsen C, Saleh Media J, Leutscher P, Sørensen S, Brusen Villadsen A, Thomsen Schmidt Arenholt L. The urinary, vaginal and gut microbiota in women with genital lichen sclerosus - A case-control study. Eur J Obstet Gynecol Reprod Biol 2023; 289:1-8. [PMID: 37591024 DOI: 10.1016/j.ejogrb.2023.08.004] [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: 03/30/2023] [Revised: 07/24/2023] [Accepted: 08/07/2023] [Indexed: 08/19/2023]
Abstract
BACKGROUND Lichen sclerosus (LS) is a chronic, autoimmune skin disease predominantly located in the anogenital region in women. In recent years, the role of the human microbiota in the pathogenesis of autoimmune diseases, including LS, has received interest. OBJECTIVES The study aimed to evaluate and compare the composition of the urinary, vaginal and gut microbiota in women with LS versus non-affected controls. STUDY DESIGN Women diagnosed with LS (n = 16) and matched controls (n = 14) were enrolled in the study. From each participant, midstream urine, upper and lower vaginal swabs, as well as faecal samples, were collected. The microbiota composition was assessed using 16S ribosomal RNA (rRNA) gene sequencing of the V4 hypervariable region. RESULTS We observed no LS-specific clustering in either of the four anatomic niches, using either hierarchical cluster analysis or weighted beta diversity metrics. However, for unweighted UniFrac, significant differences in the urinary and lower vaginal microbiota were observed when comparing women with LS to controls. These findings indicate that while the two groups have microbiota dominated by the same bacteria, variations do occur amongst less abundant bacteria. The LEfSe analysis revealed a higher relative abundance of the genus Streptococcus in the urinary and lower vaginal microbiota in women with LS compared to controls. Additionally, a higher relative abundance of phylum Euryarchaeota was observed in the gut microbiota in women with LS compared to controls. CONCLUSION In this study, we demonstrated several differences amongst less abundant bacteria in the urinary, lower vaginal and faecal microbiota when comparing women with LS to controls. However, further research is required to assess whether these microbiota differences are causative or merely a result of the underlying LS disease.
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Affiliation(s)
- Sofie Nygaard
- Centre for Clinical Research, North Denmark Regional Hospital, Hjoerring, Denmark; Department of Clinical Medicine, Aalborg University, Aalborg, Denmark
| | - Katrine Gerlif
- Centre for Clinical Research, North Denmark Regional Hospital, Hjoerring, Denmark; Department of Clinical Medicine, Aalborg University, Aalborg, Denmark
| | - Caspar Bundgaard-Nielsen
- Centre for Clinical Research, North Denmark Regional Hospital, Hjoerring, Denmark; Department of Clinical Medicine, Aalborg University, Aalborg, Denmark
| | - Jean Saleh Media
- Department of Obstetrics and Gynecology, Aalborg University Hospital, Aalborg, Denmark
| | - Peter Leutscher
- Centre for Clinical Research, North Denmark Regional Hospital, Hjoerring, Denmark; Department of Clinical Medicine, Aalborg University, Aalborg, Denmark; Steno Diabetes Center North Denmark, Aalborg, Denmark
| | - Suzette Sørensen
- Centre for Clinical Research, North Denmark Regional Hospital, Hjoerring, Denmark; Department of Clinical Medicine, Aalborg University, Aalborg, Denmark; Steno Diabetes Center North Denmark, Aalborg, Denmark
| | - Annemarie Brusen Villadsen
- Centre for Clinical Research, North Denmark Regional Hospital, Hjoerring, Denmark; Department of Clinical Medicine, Aalborg University, Aalborg, Denmark
| | - Louise Thomsen Schmidt Arenholt
- Centre for Clinical Research, North Denmark Regional Hospital, Hjoerring, Denmark; Department of Clinical Medicine, Aalborg University, Aalborg, Denmark; Department of Obstetrics and Gynecology, North Denmark Regional Hospital, Hjoerring, Denmark.
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Alhasan MM, Hölsken O, Duerr C, Helfrich S, Branzk N, Philipp A, Leitz D, Duerr J, Almousa Y, Barrientos G, Mohn WW, Gamradt S, Conrad ML. Antibiotic use during pregnancy is linked to offspring gut microbial dysbiosis, barrier disruption, and altered immunity along the gut-lung axis. Eur J Immunol 2023; 53:e2350394. [PMID: 37431194 DOI: 10.1002/eji.202350394] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Revised: 05/16/2023] [Accepted: 06/21/2023] [Indexed: 07/12/2023]
Abstract
Antibiotic use during pregnancy is associated with increased asthma risk in children. Since approximately 25% of women use antibiotics during pregnancy, it is important to identify the pathways involved in this phenomenon. We investigate how mother-to-offspring transfer of antibiotic-induced gut microbial dysbiosis influences immune system development along the gut-lung axis. Using a mouse model of maternal antibiotic exposure during pregnancy, we immunophenotyped offspring in early life and after asthma induction. In early life, prenatal-antibiotic exposed offspring exhibited gut microbial dysbiosis, intestinal inflammation (increased fecal lipocalin-2 and IgA), and dysregulated intestinal ILC3 subtypes. Intestinal barrier dysfunction in the offspring was indicated by a FITC-dextran intestinal permeability assay and circulating lipopolysaccharide. This was accompanied by increased T-helper (Th)17 cell percentages in the offspring's blood and lungs in both early life and after allergy induction. Lung tissue additionally showed increased percentages of RORγt T-regulatory (Treg) cells at both time points. Our investigation of the gut-lung axis identifies early-life gut dysbiosis, intestinal inflammation, and barrier dysfunction as a possible developmental programming event promoting increased expression of RORγt in blood and lung CD4+ T cells that may contribute to increased asthma risk.
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Affiliation(s)
- Moumen M Alhasan
- Institute of Microbiology, Infectious Diseases and Immunology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin Institute of Health, Berlin, Germany
| | - Oliver Hölsken
- Institute of Microbiology, Infectious Diseases and Immunology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin Institute of Health, Berlin, Germany
- Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt Universität zu Berlin, Department of Anesthesiology and Intensive Care Medicine, Charité Campus Benjamin Franklin, Berlin, Germany
- German Rheuma Research Center Berlin (DRFZ), Mucosal and Developmental Immunology, Berlin, Germany
- Heidelberg Biosciences International Graduate School (HBIGS), Heidelberg University, Heidelberg, Germany
| | - Claudia Duerr
- Institute of Microbiology, Infectious Diseases and Immunology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin Institute of Health, Berlin, Germany
| | - Sofia Helfrich
- Institute of Microbiology, Infectious Diseases and Immunology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin Institute of Health, Berlin, Germany
| | - Nora Branzk
- Institute of Microbiology, Infectious Diseases and Immunology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin Institute of Health, Berlin, Germany
| | - Alina Philipp
- Institute of Microbiology, Infectious Diseases and Immunology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin Institute of Health, Berlin, Germany
| | - Dominik Leitz
- Department of Pediatric Pulmonology, Immunology and Critical Care Medicine, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin Institute of Health, Berlin, Germany
| | - Julia Duerr
- Department of Pediatric Pulmonology, Immunology and Critical Care Medicine, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin Institute of Health, Berlin, Germany
| | - Yahia Almousa
- Laboratory of Molecular Tumor Pathology, Institute of Pathology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität Zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Gabriela Barrientos
- Laboratorio de Medicina Experimental, Hospital Alemán. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | - William W Mohn
- Department of Microbiology and Immunology, Life Sciences Institute, University of British Columbia, Vancouver, British Columbia, Canada
| | - Stefanie Gamradt
- Department of Psychiatry and Psychotherapy, Campus Benjamin Franklin, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin Institute of Health, Berlin, Germany
| | - Melanie L Conrad
- Institute of Microbiology, Infectious Diseases and Immunology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin Institute of Health, Berlin, Germany
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Kloepfer KM, Kennedy JL. Childhood respiratory viral infections and the microbiome. J Allergy Clin Immunol 2023; 152:827-834. [PMID: 37607643 PMCID: PMC10592030 DOI: 10.1016/j.jaci.2023.08.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Revised: 07/14/2023] [Accepted: 08/15/2023] [Indexed: 08/24/2023]
Abstract
The human microbiome associated with the respiratory tract is diverse, heterogeneous, and dynamic. The diversity and complexity of the microbiome and the interactions between microorganisms, host cells, and the host immune system are complex and multifactorial. Furthermore, the lymphatics provide a direct highway, the gut-lung axis, for the gut microbiome to affect outcomes related to respiratory disease and the host immune response. Viral infections in the airways can also alter the presence or absence of bacterial species, which might increase the risks for allergies and asthma. Viruses infect the airway epithelium and interact with the host to promote inflammatory responses that can trigger a wheezing illness. This immune response may alter the host's immune response to microbes and allergens, leading to T2 inflammation. However, exposure to specific bacteria may also tailor the host's response long before the virus has infected the airway. The frequency of viral infections, age at infection, sampling season, geographic location, population differences, and preexisting composition of the microbiota have all been linked to changes in microbiota diversity and stability. This review aims to evaluate the current reported evidence for microbiome interactions and the influences that viral infection may have on respiratory and gut microbiota, affecting respiratory outcomes in children.
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Affiliation(s)
- Kirsten M Kloepfer
- Pulmonology, Allergy/Immunology, and Sleep Medicine, Department of Pediatrics, Indiana University School of Medicine, Indianapolis, Ind.
| | - Joshua L Kennedy
- Pulmonology, Allergy, and Critical Care Medicine, University of Arkansas for Medical Sciences, Little Rock, Ark; Allergy and Immunology, Department of Pediatrics, Department of Internal Medicine, University of Arkansas for Medical Sciences, Little Rock, Ark; Arkansas Children's Research Institute, Little Rock, Ark
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Sardon-Prado O, Diaz-Garcia C, Corcuera-Elosegui P, Korta-Murua J, Valverde-Molina J, Sanchez-Solis M. Severe Asthma and Biological Therapies: Now and the Future. J Clin Med 2023; 12:5846. [PMID: 37762787 PMCID: PMC10532431 DOI: 10.3390/jcm12185846] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 08/18/2023] [Accepted: 08/25/2023] [Indexed: 09/29/2023] Open
Abstract
Recognition of phenotypic variability in pediatric asthma allows for a more personalized therapeutic approach. Knowledge of the underlying pathophysiological and molecular mechanisms (endotypes) of corresponding biomarkers and new treatments enables this strategy to progress. Biologic therapies for children with severe asthma are becoming more relevant in this sense. The T2 phenotype is the most prevalent in childhood and adolescence, and non-T2 phenotypes are usually rare. This document aims to review the mechanism of action, efficacy, and potential predictive and monitoring biomarkers of biological drugs, focusing on the pediatric population. The drugs currently available are omalizumab, mepolizumab, benralizumab, dupilumab, and 1ezepelumab, with some differences in administrative approval prescription criteria between the U.S. Food and Drug Administration (FDA) and the European Medicines Agency (EMA). Previously, we described the characteristics of severe asthma in children and its diagnostic and therapeutic management.
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Affiliation(s)
- Olaia Sardon-Prado
- Division of Paediatric Respiratory Medicine, Donostia University Hospital, 20014 San Sebastián, Spain; (O.S.-P.); (P.C.-E.); (J.K.-M.)
- Department of Pediatrics, University of the Basque Country (UPV/EHU), 20014 Leioa, Spain
| | - Carolina Diaz-Garcia
- Paediatric Pulmonology and Allergy Unit, Santa Lucia General University Hospital, 30202 Cartagena, Spain;
| | - Paula Corcuera-Elosegui
- Division of Paediatric Respiratory Medicine, Donostia University Hospital, 20014 San Sebastián, Spain; (O.S.-P.); (P.C.-E.); (J.K.-M.)
| | - Javier Korta-Murua
- Division of Paediatric Respiratory Medicine, Donostia University Hospital, 20014 San Sebastián, Spain; (O.S.-P.); (P.C.-E.); (J.K.-M.)
| | - Jose Valverde-Molina
- Department of Paediatrics, Santa Lucía General University Hospital, 30202 Cartagena, Spain
- IMIB Biomedical Research Institute, 20120 Murcia, Spain;
| | - Manuel Sanchez-Solis
- IMIB Biomedical Research Institute, 20120 Murcia, Spain;
- Department of Pediatrics, University of Murcia, 20120 Murcia, Spain
- Paediatric Allergy and Pulmonology Units, Virgen de la Arrixaca University Children’s Hospital, 20120 Murcia, Spain
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Wan J, Song J, Lv Q, Zhang H, Xiang Q, Dai H, Zheng H, Lin X, Zhang W. Alterations in the Gut Microbiome of Young Children with Airway Allergic Disease Revealed by Next-Generation Sequencing. J Asthma Allergy 2023; 16:961-972. [PMID: 37700874 PMCID: PMC10494927 DOI: 10.2147/jaa.s422537] [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: 05/23/2023] [Accepted: 08/17/2023] [Indexed: 09/14/2023] Open
Abstract
Purpose Recent studies had shown that gut microbiota played a significant role in the development of the immune system and may affect the course of airway allergic disease. We conducted this study to determine unique gut microbial associated with allergic disease in children by shotgun gene sequencing. Methods We collected fecal samples from children with allergic asthma (n = 23) and allergic rhinitis (n = 18), and healthy control (n = 19). The gut microbiota of specimens was analyzed by high-throughput metagenomic shotgun gene sequencing. Results The intestinal microbiota of children with allergic asthma and allergic rhinitis was characterized by increased microbial richness and diversity. Simpson and Shannon were significantly elevated in children with allergic asthma. Principal coordinates analysis (PCoA) showed that the gut microbial communities cluster patterns of children with asthma or rhinitis were significantly different from those of healthy controls. However, no significant difference was found between asthma group and rhinitis group At the phylum level, higher relative abundance of Firmicutes was found in the allergic rhinitis group and allergic asthma group, while the level of Bacteroidetes was significantly lower. At the genus level, Corynebacterium, Streptococcus, Dorea, Actinomyces, Bifidobacterium, Blautia, and Rothia were significantly enriched in the allergic asthma group. Finally, a random forest classifier model selected 16 general signatures to discriminate the allergic asthma group from the healthy control group. Conclusion In conclusion, children in the allergic rhinitis group and allergic asthma group had altered gut microbiomes in comparison with the healthy control group. Compared to healthy children, the gut microbiome in children with allergic diseases has higher pro-inflammatory potential and increased production of pro-inflammatory molecules.
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Affiliation(s)
- Jinyi Wan
- Department of Pediatric Allergy and Immunology, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, 325027, People’s Republic of China
- Department of Pediatric Internal Medicine, Taizhou Hospital of Zhejiang Province affiliated to Wenzhou Medical University, Taizhou, 317000, People’s Republic of China
| | - Jingjing Song
- Department of Pediatric Allergy and Immunology, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, 325027, People’s Republic of China
| | - Qingqing Lv
- Department of Pediatric Internal Medicine, Taizhou Hospital of Zhejiang Province affiliated to Wenzhou Medical University, Taizhou, 317000, People’s Republic of China
| | - Hui Zhang
- Department of Pediatric Allergy and Immunology, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, 325027, People’s Republic of China
| | - Qiangwei Xiang
- Department of Pediatric Allergy and Immunology, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, 325027, People’s Republic of China
| | - Huan Dai
- Department of Pediatric Allergy and Immunology, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, 325027, People’s Republic of China
| | - Hang Zheng
- Department of Pediatric Allergy and Immunology, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, 325027, People’s Republic of China
| | - Xixi Lin
- Department of Pharmacy, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, 325027, People’s Republic of China
| | - Weixi Zhang
- Department of Pediatric Allergy and Immunology, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, 325027, People’s Republic of China
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Zhong MM, Xie JH, Feng Y, Zhang SH, Xia JN, Tan L, Chen NX, Su XL, Zhang Q, Feng YZ, Guo Y. Causal effects of the gut microbiome on COVID-19 susceptibility and severity: a two-sample Mendelian randomization study. Front Immunol 2023; 14:1173974. [PMID: 37720222 PMCID: PMC10502427 DOI: 10.3389/fimmu.2023.1173974] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Accepted: 08/10/2023] [Indexed: 09/19/2023] Open
Abstract
Background The coronavirus disease 2019 (COVID-19) caused a global pandemic, with potential severity. We aimed to investigate whether genetically predicted gut microbiome is associated with susceptibility and severity of COVID-19 risk. Methods Mendelian randomization (MR) analysis of two sets with different significance thresholds was carried out to infer the causal relationship between the gut microbiome and COVID-19. SNPs associated with the composition of the gut microbiome (n = 5,717,754) and with COVID-19 susceptibility (n = 14,328,058), COVID-19 severity (n = 11,707,239), and COVID-19 hospitalization (n = 12,018,444) from publicly available genome-wide association studies (GWAS). The random-effect inverse variance weighted (IVW) method was used to determine causality. Three more MR techniques-MR Egger, weighted median, and weighted mode-and a thorough sensitivity analysis were also used to confirm the findings. Results IVW showed that 18 known microbial taxa were causally associated with COVID-19. Among them, six microbial taxa were causally associated with COVID-19 susceptibility; seven microbial taxa were causally associated with COVID-19 severity ; five microbial taxa were causally associated with COVID-19 hospitalization. Sensitivity analyses showed no evidence of pleiotropy or heterogeneity. Then, the predicted 37 species of the gut microbiome deserve further study. Conclusion This study found that some microbial taxa were protective factors or risky factors for COVID-19, which may provide helpful biomarkers for asymptomatic diagnosis and potential therapeutic targets for COVID-19.
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Affiliation(s)
- Meng-Mei Zhong
- Department of Stomatology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Jia-Hao Xie
- Institute of Artificial Intelligence & Robotics (IAIR), Key Laboratory of Traffic Safety on Track of Ministry of Education, School of Traffic and Transportation Engineering, Central South University, Changsha, Hunan, China
| | - Yao Feng
- Department of Stomatology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Shao-Hui Zhang
- Department of Stomatology, Xiangyang Central Hospital, Xiangyang, Hubei, China
| | - Jiang-Nan Xia
- School of Architecture and Art, Central South University, Changsha, Hunan, China
| | - Li Tan
- Department of Stomatology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Ning-Xin Chen
- Department of Stomatology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Xiao-Lin Su
- Department of Stomatology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Qian Zhang
- Department of Stomatology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Yun-Zhi Feng
- Department of Stomatology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Yue Guo
- Department of Stomatology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
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50
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Song Z, Xie Q, Zhou Y, Song S, Gao Z, Lan Y, Wu Z, Cai H, Yu D, Liu C, Liang J, Xie B, Sun S. Effect of Artificial Liver Support Systems on Gut Microbiota in Patients with HBV-Related Acute-on-Chronic Liver Failure. Pathogens 2023; 12:1094. [PMID: 37764902 PMCID: PMC10534758 DOI: 10.3390/pathogens12091094] [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: 06/26/2023] [Revised: 08/23/2023] [Accepted: 08/24/2023] [Indexed: 09/29/2023] Open
Abstract
Hepatitis B virus-related acute-on-chronic liver failure (HBV-ACLF) is a rare and severe form of end-stage liver disease with high mortality; gut microbes are strongly associated with the development of this severe liver disease but the exact association is unclear. Artificial liver support systems (ALSS) are clinically important in prolonging the waiting time for liver transplantation and in aiding drug therapy to achieve remission. The aim of this study was to investigate the effect of ALSS on the abundance and diversity of microorganisms in the gut of HBV-ACLF patients. In this study, 109 stool samples were collected from patients with hepatitis B virus-associated acute chronic liver failure (HBV-ACLF) for 16S rRNA sequencing. Among them, 44 samples were from patients treated with ALSS therapy as an adjunct to standard medical treatment (SMT) and 65 were from patients receiving SMT only. Analysis of the sequencing results suggested that there were significant differences in the abundance and diversity of gut microbiota between the with-ALSS and without-ALSS groups (p < 0.05). The operational taxonomic units and Shannon indexes indicated that the diversity and abundance of the gut microbiome, while decreasing after the first ALSS treatment, gradually increased after an increase in the number of ALSS therapies. The overall proportion of HBV-ACLF patients with coinfection was 27.59%; the coinfection can reduce the abundance of the Bacteroidetes phylum in the microbiome significantly whereas Proteobacteria were highly enriched. After ALSS therapy, HBV-ACLF patients had a decrease in potentially harmful bacteria, an increase in potentially beneficial bacteria, an increase in the diversity of the intestinal microbiota, and the intestinal microecological disorders were corrected to a certain extent. Serum alanine aminotransferase (ALT), aspartate aminotransferase (AST), and total bilirubin (TBIL) levels, as well as the international normalized ratio (INR), showed a decreasing trend whereas plasminogen activity (PTA) increased and the condition of patients with HBV-ACLF progressed in a favorable direction. In addition, the abundance of Blautia and Coprococcus was negatively correlated with TBIL and INR, positively correlated with PTA, and positively correlated with disease recovery. Our study shows that ALSS can alter the composition of the gut microbiota and have an ameliorating effect on the gut microecological imbalance in HBV-ACLF patients. It is worth mentioning that Blautia and Coprococcus may have great potential as biomarkers.
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Affiliation(s)
- Zhiying Song
- Department of Infectious Diseases, The Second Affiliated Hospital of Nanchang University, Nanchang 330006, China; (Z.S.); (Q.X.); (Y.Z.); (Y.L.); (Z.W.); (D.Y.); (C.L.)
| | - Qiong Xie
- Department of Infectious Diseases, The Second Affiliated Hospital of Nanchang University, Nanchang 330006, China; (Z.S.); (Q.X.); (Y.Z.); (Y.L.); (Z.W.); (D.Y.); (C.L.)
| | - Yao Zhou
- Department of Infectious Diseases, The Second Affiliated Hospital of Nanchang University, Nanchang 330006, China; (Z.S.); (Q.X.); (Y.Z.); (Y.L.); (Z.W.); (D.Y.); (C.L.)
| | - Shufen Song
- Department of Infectious Diseases, The Second Affiliated Hospital of Nanchang University, Nanchang 330006, China; (Z.S.); (Q.X.); (Y.Z.); (Y.L.); (Z.W.); (D.Y.); (C.L.)
| | - Zhen Gao
- Department of Infectious Diseases, The Second Affiliated Hospital of Nanchang University, Nanchang 330006, China; (Z.S.); (Q.X.); (Y.Z.); (Y.L.); (Z.W.); (D.Y.); (C.L.)
| | - Yu Lan
- Department of Infectious Diseases, The Second Affiliated Hospital of Nanchang University, Nanchang 330006, China; (Z.S.); (Q.X.); (Y.Z.); (Y.L.); (Z.W.); (D.Y.); (C.L.)
| | - Zhiguo Wu
- Department of Infectious Diseases, The Second Affiliated Hospital of Nanchang University, Nanchang 330006, China; (Z.S.); (Q.X.); (Y.Z.); (Y.L.); (Z.W.); (D.Y.); (C.L.)
| | - Hongxin Cai
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 311400, China;
| | - Dongshan Yu
- Department of Infectious Diseases, The Second Affiliated Hospital of Nanchang University, Nanchang 330006, China; (Z.S.); (Q.X.); (Y.Z.); (Y.L.); (Z.W.); (D.Y.); (C.L.)
| | - Cuiyun Liu
- Department of Infectious Diseases, The Second Affiliated Hospital of Nanchang University, Nanchang 330006, China; (Z.S.); (Q.X.); (Y.Z.); (Y.L.); (Z.W.); (D.Y.); (C.L.)
| | - Junrong Liang
- State Key Laboratory for Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Baogang Xie
- Department of Pharmaceutics, Medical College of Jiaxing University, Jiaxing 314033, China
| | - Shuilin Sun
- Department of Infectious Diseases, The Second Affiliated Hospital of Nanchang University, Nanchang 330006, China; (Z.S.); (Q.X.); (Y.Z.); (Y.L.); (Z.W.); (D.Y.); (C.L.)
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