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Chen Y, Wen Y, Zhao R, Zhu Y, Chen Z, Zhao C, Mu W. Human milk oligosaccharides in preventing food allergy: A review through gut microbiota and immune regulation. Int J Biol Macromol 2024; 278:134868. [PMID: 39163965 DOI: 10.1016/j.ijbiomac.2024.134868] [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: 04/30/2024] [Revised: 08/12/2024] [Accepted: 08/17/2024] [Indexed: 08/22/2024]
Abstract
Food allergy (FA) has increasingly attracted global attention in past decades. However, the mechanism and effect of FA are complex and varied, rendering it hard to prevention and management. Most of the allergens identified so far are macromolecular proteins in food and may have potential cross-reactions. Human milk oligosaccharides (HMOs) have been regarded as an ideal nutrient component for infants, as they can enhance the immunomodulatory capacity to inhibit the progress of FA. HMOs may intervene in the development of allergies by modifying gut microbiota and increasing specific short-chain fatty acids levels. Additionally, HMOs could improve the intestinal permeability and directly or indirectly regulate the balance of T helper cells and regulatory T cells by enhancing the inflammatory signaling pathways to combat FA. This review will discuss the influence factors of FA, key species of gut microbiota involved in FA, types of FA, and profiles of HMOs and provide evidence for future research trends to advance HMOs as potential therapeutic aids in preventing the progress of FA.
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Affiliation(s)
- Yihan Chen
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi 214122, China
| | - Yuxi Wen
- College of Marine Sciences, Fujian Agriculture and Forestry University, Fuzhou 350002, China; Department of Analytical and Food Chemistry, Faculty of Sciences, Universidade de Vigo, 32004 Ourense, Spain
| | - Runfan Zhao
- College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Yingying Zhu
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi 214122, China
| | - Zhengxin Chen
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Chao Zhao
- College of Marine Sciences, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
| | - Wanmeng Mu
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi 214122, China.
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2
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Lin Z, Wang Y, Li L, Zheng B, Hu J, Zhang Y. Comparison of anti-allergic activities of different types of lotus seed resistant starch in OVA-induced mouse model. Int J Biol Macromol 2024; 270:132389. [PMID: 38754655 DOI: 10.1016/j.ijbiomac.2024.132389] [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: 12/11/2023] [Revised: 04/18/2024] [Accepted: 05/13/2024] [Indexed: 05/18/2024]
Abstract
Currently, evidence from observational studies suggests dietary fiber intake may be associated with decreased risk of food allergy. As a type of dietary fiber, resistant starch was also widely reported to possess anti-allergic properties. However, there is a relative paucity of studies assessing the influence of resistant starch types on their anti-allergic activity and its possible underlying mechanisms. In the current study, the anti-allergic effects of RS3-type (retrograded starch), RS4-type (chemically modified starch, cross-bonded), and RS5-type (starch-palmitic acid complex) of lotus seed resistant starch were evaluated in the OVA (100 mg/kg)-induced food allergic mice model. The results showed that oral administration of RS3 or RS4 lotus seed resistant starch (0.3 g/100 g b.w.) for 25 days significantly improved adverse symptoms of food allergy such as weight loss, increases in allergy symptom score and diarrhea rate; with significant reduction of serum specific antibody IgE, TNF-α, IL-4 levels and improved Th1/Th2 balance being observed. The mechanism may involve the regulation of lotus seed resistant starch on intestinal flora and the metabolites short-chain fatty acids and bile acids. Taken together, the findings may enhance understanding towards ameliorative effects of resistant starch on food allergy, and offer valuable insights for the exploration of novel anti-allergic bioactive compounds.
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Affiliation(s)
- Zhongjing Lin
- College of Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China; Fujian Provincial Key Laboratory of Quality Science and Processing Technology in Special Starch, Fuzhou, Fujian 350002, China
| | - Yanbo Wang
- School of Food and Health, Beijing Technology and Business University, Beijing 102448, China
| | - Lanxin Li
- College of Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China; Fujian Provincial Key Laboratory of Quality Science and Processing Technology in Special Starch, Fuzhou, Fujian 350002, China
| | - Baodong Zheng
- College of Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China; Fujian Provincial Key Laboratory of Quality Science and Processing Technology in Special Starch, Fuzhou, Fujian 350002, China
| | - Jiamiao Hu
- College of Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China; College of Life Sciences, University of Leicester, Leicester LE1 7RH, United Kingdom.
| | - Yi Zhang
- College of Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China; Fujian Provincial Key Laboratory of Quality Science and Processing Technology in Special Starch, Fuzhou, Fujian 350002, China.
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Choy CT, Siu PLK, Zhou J, Wong CH, Lee YW, Chan HW, Tsui JCC, Lo CJY, Loo SKF, Tsui SKW. Improvements in Gut Microbiome Composition Predict the Clinical Efficacy of a Novel Synbiotics Formula in Children with Mild to Moderate Atopic Dermatitis. Microorganisms 2023; 11:2175. [PMID: 37764019 PMCID: PMC10536305 DOI: 10.3390/microorganisms11092175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Revised: 08/21/2023] [Accepted: 08/23/2023] [Indexed: 09/29/2023] Open
Abstract
Atopic dermatitis (AD) is a common chronic inflammatory skin disease with a significant association with various type-2 inflammation-related comorbidities. Ongoing research suggests the crucial involvement of gut microbiome, especially in childhood onset AD, and hence, probiotics have emerged as a potential non-steroid-based therapeutics option to complement existing AD management plans. In order to delineate the impact of probiotics in the gut microbiome of pediatric AD patients from southern China, targeted 16S rRNA sequencing and thorough bioinformatic analysis were performed to analyze the gut microbiome profiles of 24 AD children after taking an orally administered novel synbiotics formula with triple prebiotics for 8 weeks. A notable improvement in Eczema Area and Severity Index (EASI) (p = 0.008) was observed after taking an 8-week course of probiotics, with no adverse effects observed. The relative abundances of key microbial drivers including Bacteroides fragilis and Lactobacillus acidophilus were significantly increased at week 8. We also found that the positive responsiveness towards an 8-week course of probiotics was associated with improvements in the gut microbiome profile with a higher relative abundance of probiotic species. Over-represented functional abundance pathways related to vitamin B synthesis and peptidoglycan recycling may imply the underlying mechanism. In summary, our study suggests how the gut microbial landscape shifts upon probiotic supplementation in AD children, and provides preliminary evidence to support targeted probiotic supplementation for the management of childhood AD.
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Affiliation(s)
- Chi Tung Choy
- Microbiome Research Centre, BioMed Laboratory Company Limited, Hong Kong
| | - Pui Ling Kella Siu
- Microbiome Research Centre, BioMed Laboratory Company Limited, Hong Kong
| | - Junwei Zhou
- Microbiome Research Centre, BioMed Laboratory Company Limited, Hong Kong
| | - Chi Ho Wong
- Microbiome Research Centre, BioMed Laboratory Company Limited, Hong Kong
| | - Yuk Wai Lee
- Microbiome Research Centre, BioMed Laboratory Company Limited, Hong Kong
| | - Ho Wang Chan
- Microbiome Research Centre, BioMed Laboratory Company Limited, Hong Kong
| | | | - Claudia Jun Yi Lo
- Microbiome Research Centre, BioMed Laboratory Company Limited, Hong Kong
| | - Steven King Fan Loo
- Microbiome Research Centre, BioMed Laboratory Company Limited, Hong Kong
- Hong Kong Institute of Integrative Medicine, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong
- Dermatology Centre, CUHK Medical Centre, The Chinese University of Hong Kong, Hong Kong
| | - Stephen Kwok Wing Tsui
- Microbiome Research Centre, BioMed Laboratory Company Limited, Hong Kong
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong
- Centre for Microbial Genomics and Proteomics, The Chinese University of Hong Kong, Hong Kong
- Hong Kong Bioinformatics Centre, The Chinese University of Hong Kong, Hong Kong
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Tarrant I, Finlay BB. Human milk oligosaccharides: potential therapeutic aids for allergic diseases. Trends Immunol 2023:S1471-4906(23)00111-4. [PMID: 37438187 DOI: 10.1016/j.it.2023.06.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Revised: 06/08/2023] [Accepted: 06/09/2023] [Indexed: 07/14/2023]
Abstract
Childhood allergy, including asthma, eczema, and food allergies, is a major global health burden, with prevalence increasing dramatically and novel interventions needed. Emerging research suggests that human milk oligosaccharides (HMOs), complex glycans found in breastmilk, have allergy-protective properties, indicating exciting therapeutic potential. This review evaluates current literature on the role of HMOs in allergy, assesses underlying immunological mechanisms, and discusses future research needed to translate findings into clinical implications. HMOs may mediate allergy risk through multiple structure-specific mechanisms, including microbiome modification, intestinal barrier maturation, immunomodulation, and gene regulation. Findings emphasize the importance of breastfeeding encouragement and HMO-supplemented formula milk for high allergy-risk infants. Although further investigation is necessary to determine the most efficacious structures against varying allergy phenotypes and their long-term efficacy, HMOs may represent a promising complementary tool for childhood allergy prevention.
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Affiliation(s)
- Isabel Tarrant
- Department of Microbiology and Immunology, University of British Columbia, Vancouver, BC, Canada; Michael Smith Laboratories, University of British Columbia, Vancouver, BC, Canada
| | - B Brett Finlay
- Department of Microbiology and Immunology, University of British Columbia, Vancouver, BC, Canada; Michael Smith Laboratories, University of British Columbia, Vancouver, BC, Canada; Department of Biochemistry, University of British Columbia, Vancouver, BC, Canada.
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Campaniello D, Bevilacqua A, Speranza B, Racioppo A, Sinigaglia M, Corbo MR. A narrative review on the use of probiotics in several diseases. Evidence and perspectives. Front Nutr 2023; 10:1209238. [PMID: 37497058 PMCID: PMC10368401 DOI: 10.3389/fnut.2023.1209238] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Accepted: 06/26/2023] [Indexed: 07/28/2023] Open
Abstract
Gut microbiota is a complex ecosystem, strictly linked to health and disease, as a balanced composition (referred as eubiosis) is necessary for several physiological functions, while an unbalanced composition (dysbiosis) is often associated to pathological conditions and/or diseases. An altered microbiota could be positively affected and partially restored through probiotic supplementation, among others. This review addresses the effects of probiotics in several conditions, used as case-studies (colorectal cancer, neuro-psychiatric diseases, intestinal diseases, obesity, diabetes, metabolic syndrome, immune system, and musculoskeletal system disorders) by pointing out the clinical outcomes, the mode of action, mainly related to the production of short chain fatty acids (SCFA), the impact of probiotic dose and mode of supplementation, as well as trying to highlight a hit of the most used genera.
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He R, Wang S, Yang S, Liu R, Nan N, Lu X, Gong M, Li J. Shaoyao-Gancao-Tang regulates the T-helper-type 1/T-helper-type 2 ratio in the lung and gut and alters gut microbiota in rats with ovalbumin-induced asthma. JOURNAL OF ETHNOPHARMACOLOGY 2023; 309:116300. [PMID: 36868437 DOI: 10.1016/j.jep.2023.116300] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 02/14/2023] [Accepted: 02/16/2023] [Indexed: 06/18/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Shaoyao-Gancao Tang (SGT) is a traditional Chinese medicine formulation. It has been used to treat kinds of pain and to alleviate asthma in clinic. However, the mechanism of action is not known. AIM OF THE STUDY To investigate the anti-asthma effect of SGT involving modulation of the T-helper type 1 (Th1) Th1/Th2 ratio in the gut-lung axis and alteration of the gut microbiota (GM) in rats with ovalbumin (OVA)-induced asthma. MATERIALS AND METHODS The main constituents of SGT were analyzed by high-performance liquid chromatography (HPLC). A model of asthma was established in rats by OVA-induced allergen challenge. Rats suffering from asthma (RSAs) were treated with SGT (2.5, 5.0 and 10.0 g/kg), dexamethasone (1 mg/kg) or physiologic saline for 4 weeks. The level of immunoglobulin (Ig)E in bronchoalveolar lavage fluid (BALF) and serum was determined by enzyme-linked immunosorbent assay. Histology of lung and colon tissues was investigated using staining (hematoxylin and eosin and periodic acid-Schiff). The Th1/Th2 ratio and levels of cytokines (interferon (IFN)-γ and interleukin (IL)-4) in the lung and colon were detected by immunohistochemistry. The GM in fresh feces was analyzed by 16 S rRNA gene sequencing. RESULTS Twelve main constituents (gallic acid, albiflorin, paeoniflorin, liquiritin apioside, liquiritin, benzoic acid, isoliquiritin apioside, isoliquiritin, liquiritigenin, glycyrrhizic acid, isoliquiritigenin and glycyrrhetinic acid) of SGT were simultaneously determined by HPLC. SGT treatment (5.0 and 10.0 g/kg) was found to reduce the IgE level (a vital marker of hyper-responsiveness) in BALF and serum, improve typical morphological changes (inflammatory-cell infiltration and goblet cell metaplasia) in the lung and colon, alleviate airway remodeling (including bronchiostenosis and basement membrane-thickening) in the lung, significantly decrease the IL-4 level and increase the IFN-γ level in the lung and colon, which led to restoration of the IFN-γ/IL-4 ratio. The dysbiosis and dysfunction of GM in RSAs were modulated by SGT. The abundance of bacteria of the genera Ethanoligenens and Harryflintia was increased in RSAs and was decreased upon SGT treatment. The abundance of Family_XIII_AD3011_group was decreased in RSAs and increased upon SGT treatment. Moreover, SGT therapy increased the abundance of bacteria of the genera Ruminococcaceae_UCG-005 and Candidatus_Sacchrimonas, and decreased that of Ruminococcus_2 and Alistipes. CONCLUSIONS SGT ameliorated rats with OVA-induced asthma via regulation of the Th1/Th2 ratio in the lung and gut, and modulated the GM.
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Affiliation(s)
- Rui He
- Beijing Key Laboratory of Traditional Chinese Medicine Collateral Disease Theory Research, School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China.
| | - Sihui Wang
- Beijing Key Laboratory of Traditional Chinese Medicine Collateral Disease Theory Research, School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China; Beijing Shijitan Hospital, Capital Medical University, Beijing, 100038, China.
| | - Shengxi Yang
- Beijing Key Laboratory of Traditional Chinese Medicine Collateral Disease Theory Research, School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China.
| | - Renhui Liu
- Beijing Key Laboratory of Traditional Chinese Medicine Collateral Disease Theory Research, School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China.
| | - Nan Nan
- Beijing Key Laboratory of Traditional Chinese Medicine Collateral Disease Theory Research, School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China.
| | - Xuran Lu
- Beijing Key Laboratory of Traditional Chinese Medicine Collateral Disease Theory Research, School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China.
| | - Muxin Gong
- Beijing Key Laboratory of Traditional Chinese Medicine Collateral Disease Theory Research, School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China.
| | - Jing Li
- Beijing Key Laboratory of Traditional Chinese Medicine Collateral Disease Theory Research, School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China.
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The Crosstalk between the Gut Microbiota Composition and the Clinical Course of Allergic Rhinitis: The Use of Probiotics, Prebiotics and Bacterial Lysates in the Treatment of Allergic Rhinitis. Nutrients 2022; 14:nu14204328. [PMID: 36297012 PMCID: PMC9607052 DOI: 10.3390/nu14204328] [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: 09/09/2022] [Revised: 10/12/2022] [Accepted: 10/14/2022] [Indexed: 11/26/2022] Open
Abstract
Although massive progress in discovering allergic rhinitis (AR) aetiology has been made in recent years, its prevalence is still rising and it significantly impacts patients' lives. That is why further and non-conventional research elucidating the role of new factors in AR pathogenesis is needed, facilitating discoveries of new treatment approaches. One of these factors is the gut microbiota, with its specific roles in health and disease. This review presents the process of gut microbiota development, especially in early life, focusing on its impact on the immune system. It emphasizes the link between the gut microbiota composition and immune changes involved in AR development. Specifically, it elucidates the significant link between bacteria colonizing the gut and the Th1/Th2 imbalance. Probiotics, prebiotics and bacterial lysates, which are medications that restore the composition of intestinal bacteria and indirectly affect the clinical course of AR, are also discussed.
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Liao W, Liu W, Yan Y, Li L, Tong J, Huang Y, Guo S, Jiang W, Fu S. Hylocereus undatus flower extract suppresses OVA-induced allergic asthma in BALb/c mice by reducing airway inflammation and modulating gut microbiota. Biomed Pharmacother 2022; 153:113476. [DOI: 10.1016/j.biopha.2022.113476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Revised: 07/14/2022] [Accepted: 07/24/2022] [Indexed: 11/29/2022] Open
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Abstract
The link between the maternal microbiome and offspring allergy is poorly defined. McCauley and colleagues now demonstrate that heritable bacteria are associated with infant asthma susceptibility and induce immunosuppression of allergic inflammation, suggesting significant implications for asthma-preventative interventions1.
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Affiliation(s)
- Isabel Tarrant
- Department of Microbiology & Immunology, University of British Columbia, Vancouver, BC, Canada.
| | - B Brett Finlay
- Department of Microbiology & Immunology, University of British Columbia, Vancouver, BC, Canada
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Hong Y, Chu Z, Kong J, Li Q, Li N, Liu L, Wu T, Liu J, Ge D, Li J, Peng G. IL-17A aggravates asthma-induced intestinal immune injury by promoting neutrophil trafficking. J Leukoc Biol 2022; 112:425-435. [PMID: 35815539 DOI: 10.1002/jlb.3ma0622-426rr] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2021] [Revised: 06/10/2022] [Indexed: 11/06/2022] Open
Abstract
With the concept of the gut-lung axis reinforced in recent years, emerging evidence has shown that intestinal homeostasis is vital for lung health. Nevertheless, the impacts of lung homeostasis on intestinal tracts and their mechanism are rarely studied. Our results showed that papain-induced asthmatic mice exhibited apparent colonic injuries compared with controls, including increased intestinal permeability, neutrophil and Th17 infiltration in the colonic lamina propria. Moreover, the intranasal administration of papain aggravated such colonic injuries in mice with dextran sulfate sodium-induced colitis, as evidenced by increased occult blood scores, shortened colon length, and accumulated neutrophils. The level of IL-17A was also higher in the serum of asthmatic mice than wild-type mice. Interestingly, the pathologic scores, the proportion of Th17 cells, and neutrophil infiltration in the colon were markedly reduced after IL-17A blocking. Similarly, longer length, lower pathologic scores, and fewer neutrophils were also observed in the colon of IL-17-deficient asthmatic mice. More importantly, we demonstrated that severe gastrointestinal symptoms could accompany clinical asthmatics. The frequencies of Th17 cells and the mRNA expression of IL-17A in the peripheral blood of these patients were significantly enhanced. Besides, the gastrointestinal symptom rating scale scores positively correlated with the frequencies of Th17 in asthmatics. These findings enlighten that IL-17A aggravates asthma-induced intestinal immune injury by promoting neutrophil trafficking, which facilitates the exploration of new potential biomarkers to treat asthma.
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Affiliation(s)
- Yanfei Hong
- Department of Immunology and Microbiology, School of Life Sciences, Beijing University of Chinese Medicine, Beijing, China
| | - Zhulang Chu
- Experimental Teaching Center, School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Jingwei Kong
- Department of Immunology and Microbiology, School of Life Sciences, Beijing University of Chinese Medicine, Beijing, China
| | - Qiuyi Li
- Department of Immunology and Microbiology, School of Life Sciences, Beijing University of Chinese Medicine, Beijing, China
| | - Na Li
- Department of Immunology and Microbiology, School of Life Sciences, Beijing University of Chinese Medicine, Beijing, China
| | - Liting Liu
- Zengcheng Traditional Chinese Medicine Hospital, Guangzhou, China
| | - Tong Wu
- Department of Respiratory Medicine, Dong Zhi Men Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Jiajing Liu
- Department of Immunology and Microbiology, School of Life Sciences, Beijing University of Chinese Medicine, Beijing, China
| | - Dongyu Ge
- Scientific Research Center, School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Jie Li
- Department of Respiratory Medicine, Dong Zhi Men Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Guiying Peng
- Department of Immunology and Microbiology, School of Life Sciences, Beijing University of Chinese Medicine, Beijing, China
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11
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Choden T, Cohen NA. The gut microbiome and the immune system. EXPLORATION OF MEDICINE 2022. [DOI: 10.37349/emed.2022.00087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
The human body contains trillions of microbes which generally live in symbiosis with the host. The interaction of the gut microbiome with elements of the host immune system has far-reaching effects in the development of normal gut and systemic immune responses. Disturbances to this intricate relationship may be responsible for a multitude of gastrointestinal and systemic immune mediated diseases. This review describes the development of the gut microbiome and its interaction with host immune cells in both health and disease states.
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Affiliation(s)
- Tenzin Choden
- Section of Gastroenterology, Hepatology and Nutrition, University of Chicago Medicine, Chicago, IL 60637, USA
| | - Nathaniel Aviv Cohen
- Section of Gastroenterology, Hepatology and Nutrition, University of Chicago Medicine, Chicago, IL 60637, USA; Inflammatory Bowel Disease Center, Department of Gastroenterology and Liver Diseases, Tel Aviv Medical Center, Tel Aviv 6423906, Israel; Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv 6997801, Israel
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Narendrakumar L, Ray A. Respiratory tract microbiome and pneumonia. PROGRESS IN MOLECULAR BIOLOGY AND TRANSLATIONAL SCIENCE 2022; 192:97-124. [DOI: 10.1016/bs.pmbts.2022.07.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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13
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Lad N, Murphy A, Parenti C, Nelson C, Williams N, Sharpe G, McTernan P. Asthma and obesity: endotoxin another insult to add to injury? Clin Sci (Lond) 2021; 135:2729-2748. [PMID: 34918742 PMCID: PMC8689194 DOI: 10.1042/cs20210790] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Revised: 11/29/2021] [Accepted: 12/06/2021] [Indexed: 12/20/2022]
Abstract
Low-grade inflammation is often an underlying cause of several chronic diseases such as asthma, obesity, cardiovascular disease, and type 2 diabetes mellitus (T2DM). Defining the mediators of such chronic low-grade inflammation often appears dependent on which disease is being investigated. However, downstream systemic inflammatory cytokine responses in these diseases often overlap, noting there is no doubt more than one factor at play to heighten the inflammatory response. Furthermore, it is increasingly believed that diet and an altered gut microbiota may play an important role in the pathology of such diverse diseases. More specifically, the inflammatory mediator endotoxin, which is a complex lipopolysaccharide (LPS) derived from the outer membrane cell wall of Gram-negative bacteria and is abundant within the gut microbiota, and may play a direct role alongside inhaled allergens in eliciting an inflammatory response in asthma. Endotoxin has immunogenic effects and is sufficiently microscopic to traverse the gut mucosa and enter the systemic circulation to act as a mediator of chronic low-grade inflammation in disease. Whilst the role of endotoxin has been considered in conditions of obesity, cardiovascular disease and T2DM, endotoxin as an inflammatory trigger in asthma is less well understood. This review has sought to examine the current evidence for the role of endotoxin in asthma, and whether the gut microbiota could be a dietary target to improve disease management. This may expand our understanding of endotoxin as a mediator of further low-grade inflammatory diseases, and how endotoxin may represent yet another insult to add to injury.
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Affiliation(s)
- Nikita Lad
- Department of Biosciences, School of Science and Technology, Nottingham Trent University, Nottingham, NG11 8NS, U.K
| | - Alice M. Murphy
- Department of Biosciences, School of Science and Technology, Nottingham Trent University, Nottingham, NG11 8NS, U.K
| | - Cristina Parenti
- SHAPE Research Centre, School of Science and Technology, Nottingham Trent University, Nottingham, NG11 8NS, U.K
| | - Carl P. Nelson
- Department of Biosciences, School of Science and Technology, Nottingham Trent University, Nottingham, NG11 8NS, U.K
| | - Neil C. Williams
- SHAPE Research Centre, School of Science and Technology, Nottingham Trent University, Nottingham, NG11 8NS, U.K
| | - Graham R. Sharpe
- SHAPE Research Centre, School of Science and Technology, Nottingham Trent University, Nottingham, NG11 8NS, U.K
| | - Philip G. McTernan
- Department of Biosciences, School of Science and Technology, Nottingham Trent University, Nottingham, NG11 8NS, U.K
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14
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Maddalon A, Galbiati V, Colosio C, Mandić-Rajčević S, Corsini E. Glyphosate-based herbicides: Evidence of immune-endocrine alteration. Toxicology 2021; 459:152851. [PMID: 34246717 DOI: 10.1016/j.tox.2021.152851] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Revised: 06/10/2021] [Accepted: 07/06/2021] [Indexed: 12/28/2022]
Abstract
Glyphosate (G) is the active ingredient of the most widely used herbicide products. It targets the enzyme 5-enolpyruvylshikimate-3-phosphate synthase (EPSPS), which lacks in humans, suggesting to confer a low mammalian toxicity to G-based herbicides (GBHs). Despite this, the use of G is currently under intense debate. Many studies indicating its hazard and toxicity on non-target organisms are emerging, and associations between GBHs and immune-endocrine disturbances have been described. This review aims to investigate, based on recent epidemiological studies and studies performed in vitro and in vivo in animals, the possible association between GBHs and immune-endocrine alterations. Published data suggest that GBHs have endocrine disrupting potentiality targeting sex and thyroid hormones, although its relevance for humans will require further investigations. Evidence of immunotoxicity are limited compared to those on endocrine effects, but overall highlight possible noxious effects, including lung inflammation and rhinitis. An attractive hypothesis could be the one that connects microbiota dysbiosis with possible immune-endocrine outcomes. Indeed, several intestinal microorganisms express the enzyme EPSPS and, studies are emerging that highlight a possible G-induced dysbiosis. Considering the wide use of GBHs in agriculture, further studies investigating their noxious effects at levels relevant for human exposure should be performed. A critical analysis of emerging evidence of G toxicity is required to better characterize its safety profile. In addition, attention should be paid to the differences between G alone and its formulations, which, containing substances able to increase G absorption, may present a different toxicity profile.
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Affiliation(s)
- Ambra Maddalon
- Laboratory of Toxicology, Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Via Balzaretti 9, 20133, Milan, Italy
| | - Valentina Galbiati
- Laboratory of Toxicology, Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Via Balzaretti 9, 20133, Milan, Italy.
| | - Claudio Colosio
- Occupational Health Unit, International Centre for Rural Health, ASST Santi Paolo e Carlo, Department of Health Sciences, Università degli Studi di Milano, Milan, Italy
| | - Stefan Mandić-Rajčević
- Occupational Health Unit, International Centre for Rural Health, ASST Santi Paolo e Carlo, Department of Health Sciences, Università degli Studi di Milano, Milan, Italy
| | - Emanuela Corsini
- Laboratory of Toxicology, Department of Environmental and Political Sciences, Università degli Studi di Milano, Via Balzaretti 9, 20133, Milan, Italy
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Hesta M, Costa M. How Can Nutrition Help with Gastrointestinal Tract-Based Issues? Vet Clin North Am Equine Pract 2021; 37:63-87. [PMID: 33820610 DOI: 10.1016/j.cveq.2020.12.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
Abstract
Many horses are fed differently than their wild ancestors. They often have limited access to pasture and are fed conserved forage and concentrates rich in starch and sugars, in only 2 meals per day. Feeding practices in contrast to natural feeding behavior can lead to gastrointestinal issues. Standard nutritional evaluation is warranted because of its important role in prevention and in treatment and management of diseases. When medical and nutritional treatments are combined, success rates are higher. New techniques to characterize equine microbiota have been used, allowing for microbiota manipulation to prevent and treat intestinal diseases.
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Affiliation(s)
- Myriam Hesta
- Department of Veterinary Medical Imaging and Small Animal Orthopedics, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, Merelbeke B9820, Belgium.
| | - Marcio Costa
- Department of Veterinary Biomedical Sciences, University of Montreal, Saint-Hyacinthe, Canada
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Abstract
The incidence and prevalence of asthma have increased remarkably in recent years. There are lots of factors contributing to the occurrence and development of asthma. With the improvement of sequencing technology, it has been found that the microbiome plays an important role in the formation of asthma in early life. The roles of the microbial environment and human microbiome in the occurrence and development of asthma have attracted more and more attention. The environmental microbiome influences the occurrence of asthma by shaping the human microbiome. The specific mechanism may be related to the immune regulation of Toll-like receptors and T cells (special Tregs). Intestinal microbiome is formed and changed by regulating diet and lifestyle in early life, which may affect the development and maturation of the pulmonary immune system through the intestinal-pulmonary axis. It is well-recognized that both environmental microbiomes and human microbiomes can influence the onset of asthma. This review aims to summarize the recent advances in the research of microbiome, its relationship with asthma, and the possible mechanism of the microbiome in the occurrence and development of asthma. The research of the microbial environment and human microbiome may provide a new target for the prevention of asthma in children who have high-risk factors to allergy. However, further study of “when and how” to regulate microbiome is still needed.
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17
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Lee EA, Johnson LR, Johnson EG, Vernau W. Clinical features and radiographic findings in cats with eosinophilic, neutrophilic, and mixed airway inflammation (2011-2018). J Vet Intern Med 2020; 34:1291-1299. [PMID: 32338397 PMCID: PMC7255660 DOI: 10.1111/jvim.15772] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Accepted: 03/16/2020] [Indexed: 01/01/2023] Open
Abstract
Background Idiopathic inflammatory airway disease (IAD) in cats often is described as asthmatic (eosinophilic) or bronchitic (neutrophilic), but this designation requires collection of airway fluid and it fails to consider cats with mixed airway inflammation. Objective To identify clinical features that would differentiate inflammatory disease types. Animals Forty‐nine cats with nonspecific airway inflammation identified by bronchoscopic bronchoalveolar lavage (BAL) between 2011 and 2018 were evaluated. Methods This is a retrospective study. Cats were categorized by BAL differential cytology as having eosinophilic (eosinophils >20% with neutrophils <14%, or eosinophils >50%), mixed (eosinophils 20%‐50% and neutrophils >14% or discordant inflammation from 2 BAL sites), or neutrophilic (neutrophils >14% and eosinophils <20%) inflammation. Type and duration of presenting complaints, signalment, body condition score, respiratory rate, CBC results, bronchoscopy, BAL results (% recovery, total nucleated cell count, differential cell count), and radiographic findings were compared among groups. Results Idiopathic IAD was diagnosed in 49 cats, with BAL eosinophilic inflammation in 23, mixed inflammation in 14, and neutrophilic inflammation in 12. Cough was the predominant presenting complaint with no difference in duration of signs among groups (median, 5.5 months). Respiratory rate and effort also did not differ. Cats with eosinophilic inflammation were significantly younger (4.4 ± 3.3 years) than those with neutrophilic (8.0 ±5.6 years) or mixed inflammation (7.5 ± 4.0 years; P = .03). Results of CBC and interpretation of radiographic findings did not differ among groups. Conclusions and Clinical Importance Substantial overlap exists in clinical and radiographic findings in cats with various forms of idiopathic airway inflammation.
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Affiliation(s)
- Elizabeth A Lee
- William R. Pritchard Veterinary Medical Teaching Hospital, University of California School of Veterinary Medicine, Davis, California, USA
| | - Lynelle R Johnson
- Department of Medicine and Epidemiology, University of California School of Veterinary Medicine, Davis, California, USA
| | - Eric G Johnson
- Department of Surgical and Radiological Sciences, University of California School of Veterinary Medicine, Davis, California, USA
| | - William Vernau
- Department of Pathology, Microbiology and Immunology, University of California School of Veterinary Medicine, Davis, California, USA
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18
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Zhang D, Li S, Wang N, Tan HY, Zhang Z, Feng Y. The Cross-Talk Between Gut Microbiota and Lungs in Common Lung Diseases. Front Microbiol 2020; 11:301. [PMID: 32158441 PMCID: PMC7052046 DOI: 10.3389/fmicb.2020.00301] [Citation(s) in RCA: 218] [Impact Index Per Article: 54.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Accepted: 02/10/2020] [Indexed: 12/12/2022] Open
Abstract
Emerging findings indicate there is a vital cross-talk between gut microbiota and the lungs, which is known as gut-lung axis. The gut disturbances in lung diseases including allergy, asthma, chronic obstructive pulmonary disease, cystic fibrosis and lung cancer were observed by extensive studies. Investigating how gut microbiota impact other distant organs is of great interest in recent years. Although it has not been fully understood whether the disturbance is the cause or effect of lung diseases, alterations in the gut microbial species and metabolites have been linked to changes in immune responses and inflammation as well as the disease development in the lungs. In this article, we systemically review the role and mechanisms underlying the changes in the constituent of gut microbiota and metabolites in lung diseases. In particular, the roles of gut-lung axis in mediating immune responses and reshaping inflammation are highlighted. Furthermore, we discuss the potential of strategies to manipulate the gut microbiota and metabolites as the therapeutic approach for lung diseases.
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Affiliation(s)
- Dapeng Zhang
- First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Sha Li
- School of Chinese Medicine, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong, China
| | - Ning Wang
- School of Chinese Medicine, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong, China
| | - Hor-Yue Tan
- School of Chinese Medicine, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong, China
| | - Zhimin Zhang
- First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Yibin Feng
- School of Chinese Medicine, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong, China
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19
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Dong L, Xie J, Wang Y, Zuo D. Gut Microbiota and Immune Responses. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2020; 1238:165-193. [PMID: 32323185 DOI: 10.1007/978-981-15-2385-4_10] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The gut microbiota consists of a dynamic multispecies community living within a particular niche in a mutual synergy with the host organism. Recent findings have revealed roles for the gut microbiota in the modulation of host immunity and the development and progression of immune-mediated diseases. Besides, growing evidence supports the concept that some metabolites mainly originated from gut microbiota are linked to the immune regulation implicated in systemic inflammatory and autoimmune disorders. In this chapter, we describe the recent advances in our understanding of how host-microbiota interactions shape the immune system, how they affect the pathogenesis of immune-associated diseases and the impact of these mechanisms in the efficacy of disease therapy.
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Affiliation(s)
- Lijun Dong
- The Fifth Affiliated Hospital, Southern Medical University, Guangzhou, 510900, China
- Department of Immunology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Jingwen Xie
- Department of Immunology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Youyi Wang
- Department of Immunology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China
- School of Laboratory Medicine and Biotechnology, Institute of Molecular Immunology, Southern Medical University, Guangzhou, 510515, China
| | - Daming Zuo
- School of Laboratory Medicine and Biotechnology, Institute of Molecular Immunology, Southern Medical University, Guangzhou, 510515, China.
- Microbiome Medicine Center, Zhujiang Hospital, Southern Medical University, Guangzhou, 510282, China.
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20
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Gomez DE, Galvão KN, Rodriguez-Lecompte JC, Costa MC. The Cattle Microbiota and the Immune System: An Evolving Field. Vet Clin North Am Food Anim Pract 2019; 35:485-505. [PMID: 31590899 DOI: 10.1016/j.cvfa.2019.08.002] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
New insights into the host-microbiota relationship have recently emerged with the advancement of molecular technologies such as next-generation sequencing. This article presents the current knowledge regarding the interaction between bacteria and the immune system of the gut, the uterus, and the mammary gland of cattle.
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Affiliation(s)
- Diego E Gomez
- Department of Large Animal Clinical Sciences, College of Veterinary Medicine, University of Florida, 2015 Southwest 16th Avenue, Gainesville, FL 32608, USA.
| | - Klibs N Galvão
- Department of Large Animal Clinical Sciences, College of Veterinary Medicine, University of Florida, 2015 Southwest 16th Avenue, Gainesville, FL 32608, USA
| | - Juan C Rodriguez-Lecompte
- Department of Pathology and Microbiology, Atlantic Veterinary College, University of Prince Edward Island, 550 University Avenue, Charlottetown, Prince Edward Island C1A 4P3, Canada
| | - Marcio C Costa
- Department of Veterinary Biomedicine, University of Montreal, 3200 Rue Sicotte, Saint-Hyacinthe, Quebec J2S 2M2, Canada
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21
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Moderate Aerobic Exercise Enhances the Th1/Th2 Ratio in Women with Asthma. TANAFFOS 2019; 18:230-237. [PMID: 32411263 PMCID: PMC7210570] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND In this study, we aimed to investigate the effects of aerobic exercise training on the serum IL-4/IFN-γ ratio (Th1/Th2 balance), testosterone/cortisol ratio, levels of cortisol, testosterone, estrogen, and progesterone, and body mass index (BMI) and to determine the relationship between changes in these variables in women with asthma. MATERIALS AND METHODS Twenty-one women with mild to moderate asthma and regular menstrual cycles were selected in this study. Eleven women in the exercise group participated in the aerobic exercise program (60 min/day, three days a week in the evening). Peripheral blood samples were collected before (week 0) and after (week 12) the program. The samples were analyzed to determine the levels of sex hormones and cortisol via chemiluminescence assay, and cytokines were examined by ELISA assay. RESULTS The findings showed a significant increase in the Th1/Th2 ratio and a decrease in cortisol and BMI in the exercise group, compared to the control group (P<0.05). There was no significant correlation between changes in cortisol, sex hormones, and BMI and the increase in Th1/Th2 ratio. CONCLUSION The present results suggested that moderate aerobic exercise enhances the Th1/Th2 ratio, independent of changes in steroid hormone level and BMI in women with asthma.
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22
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McCoy KD, Ignacio A, Geuking MB. Microbiota and Type 2 immune responses. Curr Opin Immunol 2018; 54:20-27. [DOI: 10.1016/j.coi.2018.05.009] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Revised: 05/10/2018] [Accepted: 05/14/2018] [Indexed: 12/12/2022]
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23
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Gao H, Dong Z, Gong X, Dong J, Zhang Y, Wei W, Wang R, Jin S. Effects of various radiation doses on induced T-helper cell differentiation and related cytokine secretion. JOURNAL OF RADIATION RESEARCH 2018; 59:395-403. [PMID: 29554285 PMCID: PMC6054226 DOI: 10.1093/jrr/rry011] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/12/2017] [Revised: 01/06/2018] [Indexed: 06/08/2023]
Abstract
Exposure to ionizing radiation often induces T helper (Th) cell differentiation, resulting in an imbalance of Th1 and Th2 cellular subtypes, which can affect the efficacy of cancer radiotherapy. The aim of this study was to analyze differential expression of Th1, Th2 and Th3/Type 1 regulatory T cell (Tr1) subtype-related genes and cytokines in mouse thymocytes after high- and low-dose systemic radiation, using functional classification gene arrays and Elisa assays, and to explore the molecular mechanisms underlying radiation's immune effects and their relationship with Th1/Th2 immunity. We found that expression of 8 genes was upregulated after LDR, while expression of 5 genes was downregulated. After HDR, 54 genes were upregulated and 3 genes were downregulated, including genes related to Th1, Th2 and Th3/Tr1 cellular subtypes, Th1/Th2-type immune response genes and transcription factor-related genes. In the foregoing results, LDR and HDR in the thymus induced opposite patterns of expression for Th1-, Th2- and Th3-type related cytokines TGF-β, C/EBP-β and TNF-α. We also found that expression of Interferon-γ (IFN-γ) and Interleukin-2 (IL-2), which have a moderating effect on immune function, was upregulated after LDR. Furthermore, the secretion of negative regulatory factors Interleukin-1β (IL-1β), Interleukin-4 (IL-4), transforming growth factor-β (TGF-β) and Interleukin-21 (IL-21) was reduced after LDR, but HDR produced the opposite effect and stimulated their expression. These findings suggest that LDR may induce a Th1-type immune response, while HDR may lead to a Th2-type immune response.
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Affiliation(s)
- Hui Gao
- Ministry of Health Key Laboratory of Radiobiology, School of Public Health, Jilin University, Changchun, China
- The First Hospital of Jilin University, Department of Osteology, Changchun, China
| | - Zhuo Dong
- Ministry of Health Key Laboratory of Radiobiology, School of Public Health, Jilin University, Changchun, China
| | - Xinkou Gong
- The Second Hospital of Jilin University, Department of Radiology, Changchun, China
| | - Juancong Dong
- China Institute for Radiation Protection, Taiyuan, China
| | - Yuyu Zhang
- Ministry of Health Key Laboratory of Radiobiology, School of Public Health, Jilin University, Changchun, China
| | - Wei Wei
- Ministry of Health Key Laboratory of Radiobiology, School of Public Health, Jilin University, Changchun, China
| | - Rui Wang
- Ministry of Health Key Laboratory of Radiobiology, School of Public Health, Jilin University, Changchun, China
| | - Shunzi Jin
- Ministry of Health Key Laboratory of Radiobiology, School of Public Health, Jilin University, Changchun, China
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Obesity-Related Asthma: Immune Regulation and Potential Targeted Therapies. J Immunol Res 2018; 2018:1943497. [PMID: 30050954 PMCID: PMC6046139 DOI: 10.1155/2018/1943497] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2017] [Revised: 03/24/2018] [Accepted: 05/06/2018] [Indexed: 02/06/2023] Open
Abstract
Obesity, one of the most severe public health problems of the 21st century, is a common metabolic syndrome due to excess body fat. The incidence and severity of obesity-related asthma have undergone a dramatic increase. Because obesity-related asthma is poorly controlled using conventional therapies, alternative and complementary therapies are urgently needed. Lipid metabolism may be abnormal in obesity-related asthma, and immune modulation therapies need to be investigated. Herein, we describe the immune regulators of lipid metabolism in obesity as well as the interplay of obesity and asthma. These lay the foundations for targeted therapies in terms of direct and indirect immune regulators of lipid metabolism, which ultimately help provide effective control of obesity-related asthma with a feasible treatment strategy.
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