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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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2
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Wang S, Wang Y, Hu X, Lu L. Association between dietary inflammation index and asthma COPD overlap. Sci Rep 2024; 14:8077. [PMID: 38580789 PMCID: PMC10997578 DOI: 10.1038/s41598-024-58813-1] [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: 11/01/2023] [Accepted: 04/03/2024] [Indexed: 04/07/2024] Open
Abstract
There are few studies on the relationship between dietary habits and asthma-COPD overlap (ACO). In this study, we aimed to investigate the association between dietary inflammation index (DII) score and ACO. Data from the National Health and Nutrition Examination Survey (NHANES) from 1999 to 2020. The DII score was first calculated and the demographic characteristics of the grouping based on the DII quartile were assessed. The weighted logistic regression model was used to study the relationship between DII and ACO. Subgroup analysis was used to further explore the differences in different subgroups. Restricted cubic spline (RCS) plot was used to show the general trend of DII score and disease risk, and threshold effect analysis was used to determine the inflection point. In a comparison of baseline characteristics, the highest ACO prevalence was found in the fourth quartile array of people in DII. An adjusted weighted logistic regression model showed that DII was positively correlated with the incidence of ACO. Subgroup analysis showed that the association was more pronounced in women, non-Hispanics, people with cardiovascular disease, and people without diabetes. The RCS graph shows that overall, the risk of ACO increases with the increase of DII score. Threshold effect analysis showed that the inflection point was 3.779, and the risk was more significant after the DII score was greater than the inflection point value (OR 2.001, 95% CI 1.334-3.001, P < 0.001). Higher DII scores were positively associated with ACO risk. These results further support diet as an intervention strategy for ACO prevention and treatment.
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Affiliation(s)
- Shidong Wang
- Department of Respiratory Medicine, Shaoxing Second Hospital, Shaoxing, China.
| | - Yaokun Wang
- Department of Respiratory Medicine, Shaoxing Second Hospital, Shaoxing, China
| | - Xiaoyan Hu
- Department of Respiratory Medicine, Shaoxing Second Hospital, Shaoxing, China
| | - Linmin Lu
- Department of Respiratory Medicine, Shaoxing Second Hospital, Shaoxing, China
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3
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Verma A, Bhagchandani T, Rai A, Nikita, Sardarni UK, Bhavesh NS, Gulati S, Malik R, Tandon R. Short-Chain Fatty Acid (SCFA) as a Connecting Link between Microbiota and Gut-Lung Axis-A Potential Therapeutic Intervention to Improve Lung Health. ACS OMEGA 2024; 9:14648-14671. [PMID: 38585101 PMCID: PMC10993281 DOI: 10.1021/acsomega.3c05846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Revised: 10/25/2023] [Accepted: 10/26/2023] [Indexed: 04/09/2024]
Abstract
The microbiome is an integral part of the human gut, and it plays a crucial role in the development of the immune system and homeostasis. Apart from the gut microbiome, the airway microbial community also forms a distinct and crucial part of the human microbiota. Furthermore, several studies indicate the existence of communication between the gut microbiome and their metabolites with the lung airways, called "gut-lung axis". Perturbations in gut microbiota composition, termed dysbiosis, can have acute and chronic effects on the pathophysiology of lung diseases. Microbes and their metabolites in lung stimulate various innate immune pathways, which modulate the expression of the inflammatory genes in pulmonary leukocytes. For instance, gut microbiota-derived metabolites such as short-chain fatty acids can suppress lung inflammation through the activation of G protein-coupled receptors (free fatty acid receptors) and can also inhibit histone deacetylase, which in turn influences the severity of acute and chronic respiratory diseases. Thus, modulation of the gut microbiome composition through probiotic/prebiotic usage and fecal microbiota transplantation can lead to alterations in lung homeostasis and immunity. The resulting manipulation of immune cells function through microbiota and their key metabolites paves the way for the development of novel therapeutic strategies in improving the lung health of individuals affected with various lung diseases including SARS-CoV-2. This review will shed light upon the mechanistic aspect of immune system programming through gut and lung microbiota and exploration of the relationship between gut-lung microbiome and also highlight the therapeutic potential of gut microbiota-derived metabolites in the management of respiratory diseases.
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Affiliation(s)
- Anjali Verma
- Laboratory
of AIDS Research and Immunology, School of Biotechnology, Jawaharlal Nehru University, New Delhi 110067, India
| | - Tannu Bhagchandani
- Laboratory
of AIDS Research and Immunology, School of Biotechnology, Jawaharlal Nehru University, New Delhi 110067, India
| | - Ankita Rai
- Laboratory
of AIDS Research and Immunology, School of Biotechnology, Jawaharlal Nehru University, New Delhi 110067, India
| | - Nikita
- Laboratory
of AIDS Research and Immunology, School of Biotechnology, Jawaharlal Nehru University, New Delhi 110067, India
| | - Urvinder Kaur Sardarni
- Laboratory
of AIDS Research and Immunology, School of Biotechnology, Jawaharlal Nehru University, New Delhi 110067, India
| | - Neel Sarovar Bhavesh
- Transcription
Regulation Group, International Centre for
Genetic Engineering and Biotechnology (ICGEB), New Delhi 110067, India
| | - Sameer Gulati
- Department
of Medicine, Lady Hardinge Medical College
(LHMC), New Delhi 110058, India
| | - Rupali Malik
- Department
of Medicine, Vardhman Mahavir Medical College
and Safdarjung Hospital, New Delhi 110029, India
| | - Ravi Tandon
- Laboratory
of AIDS Research and Immunology, School of Biotechnology, Jawaharlal Nehru University, New Delhi 110067, India
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4
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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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5
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Adame MJ, Raji M, Shan Y, Zhang Y, Kuo YF, Tripple JW. Reply to "Diet may be the common factor linking aspirin-exacerbated respiratory disease and atherosclerotic cardiovascular disease". THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY. IN PRACTICE 2024; 12:540-541. [PMID: 38336405 DOI: 10.1016/j.jaip.2023.12.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Accepted: 12/08/2023] [Indexed: 02/12/2024]
Affiliation(s)
- Michael J Adame
- Division of Allergy and Immunology, Department of Internal Medicine, The University of Texas Medical Branch, Galveston, Texas.
| | - Mukaila Raji
- Division of Geriatrics, Department of Internal Medicine, The University of Texas Medical Branch, Galveston, Texas
| | - Yong Shan
- Department of Biostatistics and Data Science, The University of Texas Medical Branch, Galveston, Texas
| | - Yuanyi Zhang
- Department of Biostatistics and Data Science, The University of Texas Medical Branch, Galveston, Texas
| | - Yong-Fang Kuo
- Division of Geriatrics, Department of Internal Medicine, The University of Texas Medical Branch, Galveston, Texas; Department of Biostatistics and Data Science, The University of Texas Medical Branch, Galveston, Texas
| | - Julia W Tripple
- Division of Allergy and Immunology, Department of Internal Medicine, The University of Texas Medical Branch, Galveston, Texas
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Visser E, Ten Brinke A, Sizoo D, Pepels JJS, Ten Have L, van der Wiel E, van Zutphen T, Kerstjens HAM, de Jong K. Effect of dietary interventions on markers of type 2 inflammation in asthma: A systematic review. Respir Med 2024; 221:107504. [PMID: 38141862 DOI: 10.1016/j.rmed.2023.107504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 11/29/2023] [Accepted: 12/17/2023] [Indexed: 12/25/2023]
Abstract
INTRODUCTION Type 2 (T2) inflammation is a key mechanism in the pathophysiology of asthma. Diet may have immunomodulatory effects, and a role for diet in T2 inflammation has been suggested in the literature. Indeed, diet and food allergies play a role in children with atopic asthma, but less is known about diet in relation to adult asthma, which is often non-atopic. OBJECTIVE To review the effect of dietary interventions on markers of T2 inflammation in adults with asthma. METHODS The databases PubMed, Embase, Cochrane Library, and CINAHL were searched for eligible studies until December 2022. We included studies of all types of foods, nutrients, diets or supplements, either as an exposure or as an intervention, in adults and adolescents with asthma. Outcomes of interest included the T2 biomarkers FeNO, eosinophils, IL-4, IL-5, IL-13, eosinophil cationic protein and eosinophil peroxidase. The methodological quality of eligible studies was systematically evaluated, and the results were summarised according to dietary clusters. RESULTS The systematic search identified studies on the dietary clusters antioxidants (n = 14), fatty acids, (n = 14), Mediterranean-style diets (n = 5), phytotherapy (n = 7), prebiotics & probiotics (n = 8), vitamin D (n = 7), and other dietary factors (n = 5). Studies within the phytotherapy and omega-3 poly-unsaturated fatty acids (PUFA) clusters showed possible improvements in T2 inflammation. Furthermore, we found little evidence for an effect of antioxidants, prebiotics & probiotics, and Mediterranean-style diets on T2 inflammation. However, heterogeneity in study protocols, methodological shortcomings and limited power of almost all studies make it difficult to fully determine the impact of different dietary approaches on T2 inflammation in asthma. CONCLUSIONS Overall, the current evidence does not support a specific dietary intervention to improve T2 inflammation in asthma. Interventions involving phytotherapy and omega-3 PUFA currently have the best evidence and warrant further evaluation in well-designed and adequately powered studies, while taking into account T2-high phenotypes of asthma.
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Affiliation(s)
- Edith Visser
- Department of Epidemiology, Medical Centre Leeuwarden, Leeuwarden, the Netherlands; Department of Sustainable Health, Faculty Campus Fryslân, University of Groningen, Leeuwarden, the Netherlands.
| | - Anneke Ten Brinke
- Department of Pulmonary Medicine, Medical Centre Leeuwarden, Leeuwarden, the Netherlands.
| | - Dionne Sizoo
- Department of Sustainable Health, Faculty Campus Fryslân, University of Groningen, Leeuwarden, the Netherlands; Centre Obesity Northern Netherlands (CON), Department of Surgery, Medical Centre Leeuwarden, Leeuwarden, the Netherlands.
| | - Janneke J S Pepels
- Department of Epidemiology, Medical Centre Leeuwarden, Leeuwarden, the Netherlands.
| | - Lianne Ten Have
- Department of Epidemiology, Medical Centre Leeuwarden, Leeuwarden, the Netherlands.
| | - Erica van der Wiel
- Department of Pulmonary Medicine, Martini Hospital, Groningen, the Netherlands.
| | - Tim van Zutphen
- Department of Sustainable Health, Faculty Campus Fryslân, University of Groningen, Leeuwarden, the Netherlands.
| | - Huib A M Kerstjens
- Department of Pulmonary Medicine, University of Groningen, University Medical Centre Groningen, Groningen, the Netherlands; Groningen Research Institute for Asthma and COPD (GRIAC), Groningen, the Netherlands.
| | - Kim de Jong
- Department of Epidemiology, Medical Centre Leeuwarden, Leeuwarden, the Netherlands.
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7
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Suna G, Keskin O, Küçükçetin İÖ, Ayaz A. Dietary antioxidants and flavonoids intake, and their association with inflammation and oxidative stress parameters in asthmatic women: a case-control study. J Clin Biochem Nutr 2024; 74:22-29. [PMID: 38292125 PMCID: PMC10822751 DOI: 10.3164/jcbn.23-60] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Accepted: 09/10/2023] [Indexed: 02/01/2024] Open
Abstract
Asthma is more prevalent and severe in women, especially after puberty. Studies suggest a potential link between dietary antioxidants, inflammation, and oxidative stress. This study aimed to compare the dietary intake of antioxidants in asthmatic and healthy women, evaluating their potential associations with inflammation and oxidative stress. This study analyzed 30 asthmatic and 30 healthy women's lung function, anthropometry, biochemical parameters, and dietary antioxidant intake using a 161-itemized semi-quantitative food frequency questionnaire. Additionally, the study explored connections between serum inflammatory markers and oxidative stress indicators in relation to dietary intake of antioxidant nutrients and flavonoids. Asthmatic women exhibited higher serum IL-6 levels and lower total antioxidant status compared to healthy controls. Nevertheless, no significant differences were observed in dietary antioxidant micronutrient intake. Healthy controls demonstrated a notably higher intake of anthocyanidins compared to asthmatic women. Furthermore, the study identified a negative correlation between flavonol intake and serum total oxidant status, as well as between flavan-3-ols intake and serum oxidative stress index. Dietary differences in flavonoid and flavonoid-rich foods intake among asthmatic women may affect their serum IL-6 levels and oxidative stress. Promoting a diverse diet rich in flavonoids could benefit women with asthma by mitigating inflammation and oxidative stress.
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Affiliation(s)
- Gülen Suna
- Department of Nutrition and Dietetics, Faculty of Health Sciences, Akdeniz University, 07070, Konyaaltı, Antalya, Turkey
- Department of Nutrition and Dietetics, Faculty of Health Sciences, Hacettepe University, 06100, Sıhhiye, Ankara, Turkey
| | - Olgun Keskin
- Department of Chest Disease, Antalya Training and Research Hospital, Kazım Karabekir Street, Varlık District, 07100, Muratpaşa, Antalya, Turkey
| | - İkbal Özen Küçükçetin
- Medical Biochemistry Laboratory, Akdeniz University Hospital, Pınarbaşı District, Dumlupınar Boulevard, 07070, Konyaaltı, Antalya, Turkey
| | - Aylin Ayaz
- Department of Nutrition and Dietetics, Faculty of Health Sciences, Hacettepe University, 06100, Sıhhiye, Ankara, Turkey
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8
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Visser E, de Jong K, van Zutphen T, Kerstjens HAM, Ten Brinke A. Dietary Inflammatory Index and Clinical Outcome Measures in Adults With Moderate-to-Severe Asthma. THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY. IN PRACTICE 2023; 11:3680-3689.e7. [PMID: 37652347 DOI: 10.1016/j.jaip.2023.08.032] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Revised: 08/17/2023] [Accepted: 08/18/2023] [Indexed: 09/02/2023]
Abstract
BACKGROUND Diet is increasingly recognized as a modifiable factor in lung health, predominantly due to the immunomodulatory effects of nutrients. The Dietary Inflammatory Index (DII) is a score developed to express the inflammatory potential of a diet. OBJECTIVE We aimed to assess the association of the DII and food groups, with clinical, functional, and inflammatory asthma outcomes in adults with asthma. METHODS Patients with moderate-to-severe asthma were included in this cross-sectional study between June 2019 and October 2021, and completed a 3-day food diary, to calculate the DII and intake of food groups (ie, fruits, whole grains, processed meats, and sugar-sweetened beverages). Functional outcomes included pulmonary function tests and the 6-minute walking distance, whereas clinical outcomes were assessed using questionnaires on asthma control, quality of life, and health care utilization. Inflammatory markers were exhaled nitric oxide and blood leukocytes, eosinophils, and IL-6. Multivariable regression analyses were used to examine the association of DII and food groups with asthma outcomes. RESULTS A total of 109 patients participated (35% male, mean ± standard deviation age 51.8 ± 14.2 years, body mass index 27.4 ± 5.3 kg/m2). Overall, 62% had a DII score >0, indicating a proinflammatory diet, which was not related to asthma severity. A more proinflammatory diet was consistently associated with lower forced vital capacity (%pred), but inconsistent results were observed with respect to airway obstruction. Neither the DII nor food groups were associated with clinical outcomes. Except for higher levels of exhaled nitric oxide in relation to an anti-inflammatory diet, we found no associations between inflammatory markers and the DII. CONCLUSION Results from this cross-sectional study among patients with moderate-to-severe asthma do not support the hypothesis that a proinflammatory diet is associated with worse asthma outcomes, although limitations in study design and dietary intake estimation should be considered. Future well-designed experimental studies are needed to assess whether targeting the inflammatory potential of diet could lead to better outcomes in adults with asthma.
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Affiliation(s)
- Edith Visser
- Department of Epidemiology, Medical Centre Leeuwarden, Leeuwarden, the Netherlands; Department of Sustainable Health, Faculty Campus Fryslân, University of Groningen, Leeuwarden, the Netherlands.
| | - Kim de Jong
- Department of Epidemiology, Medical Centre Leeuwarden, Leeuwarden, the Netherlands
| | - Tim van Zutphen
- Department of Sustainable Health, Faculty Campus Fryslân, University of Groningen, Leeuwarden, the Netherlands
| | - Huib A M Kerstjens
- Department of Pulmonary Medicine, University of Groningen, University Medical Centre Groningen, Groningen, the Netherlands; Groningen Research Institute for Asthma and COPD (GRIAC), Groningen, the Netherlands
| | - Anneke Ten Brinke
- Department of Pulmonary Medicine, Medical Centre Leeuwarden, Leeuwarden, the Netherlands
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9
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Clemente-Suárez VJ, Mielgo-Ayuso J, Ramos-Campo DJ, Beltran-Velasco AI, Martínez-Guardado I, Navarro Jimenez E, Redondo-Flórez L, Yáñez-Sepúlveda R, Tornero-Aguilera JF. Basis of preventive and non-pharmacological interventions in asthma. Front Public Health 2023; 11:1172391. [PMID: 37920579 PMCID: PMC10619920 DOI: 10.3389/fpubh.2023.1172391] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Accepted: 09/18/2023] [Indexed: 11/04/2023] Open
Abstract
Asthma is one of the most common atopic disorders in all stages of life. Its etiology is likely due to a complex interaction between genetic, environmental, and lifestyle factors. Due to this, different non-pharmacological interventions can be implemented to reduce or alleviate the symptoms caused by this disease. Thus, the present narrative review aimed to analyze the preventive and non-pharmacological interventions such as physical exercise, physiotherapy, nutritional, ergonutritional, and psychological strategies in asthma treatment. To reach these aims, an extensive narrative review was conducted. The databases used were MedLine (PubMed), Cochrane (Wiley), Embase, PsychINFO, and CinAhl. Asthma is an immune-mediated inflammatory condition characterized by increased responsiveness to bronchoconstrictor stimuli. Different factors have been shown to play an important role in the pathogenesis of asthma, however, the treatments used to reduce its incidence are more controversial. Physical activity is focused on the benefits that aerobic training can provide, while physiotherapy interventions recommend breathing exercises to improve the quality of life of patients. Nutritional interventions are targeted on implement diets that prioritize the consumption of fruits and vegetables and supplementation with antioxidants. Psychological interventions have been proposed as an essential non-pharmacological tool to reduce the emotional problems associated with asthma.
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Affiliation(s)
- Vicente Javier Clemente-Suárez
- Faculty of Sports Sciences, Universidad Europea de Madrid, Madrid, Spain
- Studies Centre in Applied Combat (CESCA), Toledo, Spain
| | - Juan Mielgo-Ayuso
- Department of Health Sciences, Faculty of Health Sciences, University of Burgos, Burgos, Spain
| | - Domingo Jesús Ramos-Campo
- LFE Research Group, Department of Health and Human Performance, Faculty of Physical Activity and Sport Science-INEF, Universidad Politécnica de Madrid, Madrid, Spain
| | | | - Ismael Martínez-Guardado
- BRABE Group, Department of Psychology, Faculty of Life and Natural Sciences, Universidad Camilo José Cela, Madrid, Spain
| | | | - Laura Redondo-Flórez
- Department of Health Sciences, Faculty of Biomedical and Health Sciences, Universidad Europea de Madrid, Madrid, Spain
| | | | - Jose Francisco Tornero-Aguilera
- Faculty of Sports Sciences, Universidad Europea de Madrid, Madrid, Spain
- Studies Centre in Applied Combat (CESCA), Toledo, Spain
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10
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Yin Z, Liu X, Guo L, Ren M, Kang W, Ma C, Waterhouse GIN, Sun-Waterhouse D. The potential of dietary fiber in building immunity against gastrointestinal and respiratory disorders. Crit Rev Food Sci Nutr 2023:1-19. [PMID: 37837407 DOI: 10.1080/10408398.2023.2266462] [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: 10/16/2023]
Abstract
The numerous health benefits of dietary fibers (DFs) justify their inclusion in human diets and biomedical products. Given the short- and long-term human impacts of the COVID-19 virus on human health, the potential of DFs in building immunity against gastrointestinal and respiratory disorders is currently receiving high attention. This paper reviews the physicochemical properties of DFs, together with their immune functions and effects on the gastrointestinal tract and respiratory system mainly based on research in the last ten years. Possible modes of action of DFs in promoting health, especially building immunity, are explored. We seek to highlight the importance of understanding the exact physical and chemical characteristics and molecular behaviors of DFs in providing specific immune function. This review provides a perspective beyond the existing recognition of DFs' positive effects on human health, and offers a theoretical framework for the development of special DFs components and their application in functional foods and other therapeutic products against gastrointestinal and respiratory disorders. DFs enhance immunity from gastrointestinal and respiratory diseases to promote host health.
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Affiliation(s)
- Zhenhua Yin
- National R &D Center for Edible Fungus Processing Technology, Henan University, Kaifeng, China
- Comprehensive Utilization of Edible and Medicinal Plant Resources Engineering Technology Research Center, Huanghe Science and Technology College, Zhengzhou, China
- Function Food Engineering Technology Research Center, Kaifeng, China
| | - Xiaopeng Liu
- National R &D Center for Edible Fungus Processing Technology, Henan University, Kaifeng, China
- Function Food Engineering Technology Research Center, Kaifeng, China
| | - Lin Guo
- National R &D Center for Edible Fungus Processing Technology, Henan University, Kaifeng, China
- Function Food Engineering Technology Research Center, Kaifeng, China
| | - Mengjie Ren
- National R &D Center for Edible Fungus Processing Technology, Henan University, Kaifeng, China
- Function Food Engineering Technology Research Center, Kaifeng, China
| | - Wenyi Kang
- National R &D Center for Edible Fungus Processing Technology, Henan University, Kaifeng, China
- Function Food Engineering Technology Research Center, Kaifeng, China
| | - Changyang Ma
- National R &D Center for Edible Fungus Processing Technology, Henan University, Kaifeng, China
- Function Food Engineering Technology Research Center, Kaifeng, China
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11
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Zhang J, He M, Yu Q, Xiao F, Zhang Y, Liang C. The Effects of a Healthy Diet on Asthma and Wheezing in Children and Adolescents: A Systematic Review and Meta-Analysis. J Asthma Allergy 2023; 16:1007-1024. [PMID: 37780080 PMCID: PMC10541225 DOI: 10.2147/jaa.s423884] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Accepted: 09/18/2023] [Indexed: 10/03/2023] Open
Abstract
Background Asthma is a public health problem requiring focused attention. This study aimed to systematically evaluate the association between dietary structure and asthma or wheezing in children. Methods The study protocol of this meta-analysis has been registered in the International Prospective Register of Systematic Reviews (PROSPERO) with the registration code CRD42023390191. A total of 8397 articles were retrieved, searching PubMed, Medline, Embase, Web of Science, and Scopus databases as of November 21, 2022. Two independent authors were responsible for independently conducting the literature screening process. Effect-size estimates were expressed as odds ratio (OR) in cross-sectional studies and risk ratio (RR) in cohort studies with a 95% confidence interval (CI). Summary effect estimates were evaluated with random-effect models. Meanwhile, subgroup and sensitivity analyses were performed to assess the potential sources of heterogeneity and the robustness of the pooled estimation. Results A total of 65 studies, including 567,426 subjects had been analyzed. Overall analyses of cross-sectional studies revealed that a healthy diet was protective against asthma (adjusted OR=0.85, 95% CI: 0.80-0.89, P <0.001, I2=69.8%, Tau2=0.026) and wheezing (adjusted OR=0.85, 95% CI: 0.81-0.89, P <0.001, I2=66.8%, Tau2=0.015) in children and adolescents. Conversely, unhealthy diets can exacerbate asthma (adjusted OR=1.28, 95% CI: 1.20-1.36, P <0.001, I2=64.9%, Tau2=0.019) and wheeze (adjusted OR=1.09, 95% CI: 1.02-1.16, P =0.006, I2=75.2%, Tau2=0.023) in children and adolescents. The same trend was found in cohort studies (adjusted RR=0.72, 95% CI: 0.58-0.90, P =0.003, I2=83.5%, Tau2=0.105). A clear trend was observed between high-frequency healthy diets (OR=0.80; 95% CI: 0.71-0.89; P <0.001) is more protective against asthma than low-frequency healthy diets (OR=0.81; 95% CI: 0.70-0.94; P =0.007). Conclusion Our findings highlight the protective effects of a healthy diet on asthma and wheezing in children, including fruit, seafood, cereals, and the Mediterranean diet.
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Affiliation(s)
- Jin Zhang
- Department of Thoracic Surgery, China-Japan Friendship Hospital, Beijing, People’s Republic of China
| | - Mengyang He
- Graduate School, Beijing University of Chinese Medicine, Beijing, People’s Republic of China
| | - Qiduo Yu
- Department of Thoracic Surgery, China-Japan Friendship Hospital, Beijing, People’s Republic of China
| | - Fei Xiao
- Department of Thoracic Surgery, China-Japan Friendship Hospital, Beijing, People’s Republic of China
| | - Yongming Zhang
- Department of Pulmonary and Critical Care Medicine, Center of Respiratory Medicine, China-Japan Friendship Hospital; National Clinical Research Center for Respiratory Diseases, Beijing, People’s Republic of China
| | - Chaoyang Liang
- Department of Thoracic Surgery, China-Japan Friendship Hospital, Beijing, People’s Republic of China
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12
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Li RJ, Wen YX. Association of body mass index with asthma occurrence and persistence in adolescents: A retrospective study of NHANES (2011-2018). Heliyon 2023; 9:e20092. [PMID: 37809502 PMCID: PMC10559872 DOI: 10.1016/j.heliyon.2023.e20092] [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: 11/28/2022] [Revised: 09/10/2023] [Accepted: 09/11/2023] [Indexed: 10/10/2023] Open
Abstract
Objective To investigate the association of body mass index (BMI) with asthma and analyze the risk factors of asthma persistence among overweight/obese adolescents and those with a high risk for obesity. Methods In this cross-sectional study, adolescents aged 11-17 years with complete general information and asthma diagnoses were selected from the National Health and Nutrition Examination Survey database. For adolescents without self-reported asthma, we performed matching according to age and sex at a case-to-control ratio of 1:3. Logistic regression analysis was employed to identify independent predictors of asthma occurrence followed by constructing a nomogram and comparing its efficacy to independent factors in predicting asthma occurrence. Besides, associations of BMI with asthma occurrence and persistence were evaluated. Finally, we obtained risk factors for asthma persistence in overweight/obese individuals and those at a high risk for obesity. Results Totally 753 adolescents with asthma and 2259 adolescents without asthma were included to analyze the occurrence of asthma. BMI and Hispanic Ethnicity were independent predictors of asthma occurrence and were included in nomogram construction. BMI had an efficiency comparable to that of the nomogram model in predicting asthma occurrence, which is superior to that of Hispanic Ethnicity. Of the 753 adolescents diagnosed with asthma, 464 were still diagnosed with asthma of at least a year's duration. Interestingly, BMI may have the ability to predict asthma persistence. Further, Hispanic Ethnicity and household income were significantly related to asthma occurrence among overweight/obese and high-risk obese individuals. Conclusions High BMI could independently predict increased asthma occurrence. Additionally, BMI may play an essential role in predicting asthma persistence. This study may help improve the diagnosis and reduce the occurrence of asthma.
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Affiliation(s)
- Ren-jie Li
- Emergency Department, Affiliated Hospital of Putian University, Putian, 351100, Fujian, China
| | - Ying-xu Wen
- Emergency Department, The Second Affiliated Hospital of Hainan Medical University, Haikou, 570000, Hainan, China
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13
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Steininger H, Moltzau-Anderson J, Lynch SV. Contributions of the early-life microbiome to childhood atopy and asthma development. Semin Immunol 2023; 69:101795. [PMID: 37379671 DOI: 10.1016/j.smim.2023.101795] [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: 05/19/2023] [Accepted: 06/13/2023] [Indexed: 06/30/2023]
Abstract
The rapid rise in atopy and asthma in industrialized nations has led to the identification of early life environmental factors that promote these conditions and spurred research into how such exposures may mediate the trajectory to childhood disease development. Over the past decade, the human microbiome has emerged as a key determinant of human health. This is largely due to the increasing appreciation for the myriad of non-mutually exclusive mechanisms by which microbes tune and train host immunity. Microbiomes, particularly those in early life, are shaped by extrinsic and intrinsic factors, including many of the exposures known to influence allergy and asthma risk. This has led to the over-arching hypothesis that such exposures mediate their effect on childhood atopy and asthma by altering the functions and metabolic productivity of microbiomes that shape immune function during this critical developmental period. The capacity to study microbiomes at the genetic and molecular level in humans from the pre-natal period into childhood with well-defined clinical outcomes, offers an unprecedented opportunity to identify early-life and inter-generational determinants of atopy and asthma outcomes. Moreover, such studies provide an integrative microbiome research framework that can be applied to other chronic inflammatory conditions. This review attempts to capture key studies in the field that offer insights into the developmental origins of childhood atopy and asthma, providing novel insights into microbial mediators of maladaptive immunity and chronic inflammatory disease in childhood.
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Affiliation(s)
- Holly Steininger
- Division of Gastroenterology, University of California, San Francisco, USA; Benioff Center for Microbiome Medicine, Department of Medicine, University of California, San Francisco, USA
| | - Jacqueline Moltzau-Anderson
- Division of Gastroenterology, University of California, San Francisco, USA; Benioff Center for Microbiome Medicine, Department of Medicine, University of California, San Francisco, USA
| | - Susan V Lynch
- Division of Gastroenterology, University of California, San Francisco, USA; Benioff Center for Microbiome Medicine, Department of Medicine, University of California, San Francisco, USA.
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14
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Li Y, He Z, Lin Z, Bai J, Adcock IM, Yao X. Healthy eating index (HEI) as the predictor of asthma: Findings from NHANES. Clin Nutr ESPEN 2023; 56:158-165. [PMID: 37344067 DOI: 10.1016/j.clnesp.2023.05.013] [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: 10/06/2022] [Revised: 05/18/2023] [Accepted: 05/21/2023] [Indexed: 06/23/2023]
Abstract
BACKGROUND&AIMS Previous studies have shown that the formation and development of asthma are closely related to diet. A proper diet can control asthma onset although the precise dietary components involved in preventing or delaying the onset of asthma remain unclear. The healthy eating index (HEI-2015) is a dietary score that measures the overall diet quality as well as the quality of several dietary components. We aimed to explore the relationship between HEI and asthma. METHODS This is a cross-sectional study that used data from the 2005 to 2018 National Health and Nutritional Examination Survey (NHANES) in adults (n = 26,567). Our inclusion criteria were adults ≥18 years, completion of asthma-related questionnaires and availability of HEI data. Weighted logistic regression was performed to assess the association between asthma and HEI after adjusting for several covariates. RESULTS Patients with asthma were more likely to be female, come from a poorer background, have a raised body mass index (BMI) and a lower HEI total score. Higher HEI total scores were associated with a lower risk of asthma in adults. In addition, eating more whole fruits, more greens and beans, more total protein foods, more seafood and plant proteins, and having a reduced dietary intake of added sugars reduces the risk of asthma. In asthmatic populations, higher HEI scores are associated with older age at onset of asthma. CONCLUSION There is an inverse association between the HEI and asthma. This underlines the importance of improving adherence to healthy dietary patterns in the prevention of asthma.
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Affiliation(s)
- Yuebei Li
- Department of Respiratory & Critical Care Medicine, The First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing 210029, China.
| | - Zhiqiang He
- Department of Biostatistics, School of Public Heath, Nanjing Medical University, Nanjing, Jiangsu, 211166, China.
| | - Zichen Lin
- Department of Respiratory & Critical Care Medicine, The First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing 210029, China.
| | - Jianling Bai
- Department of Biostatistics, School of Public Heath, Nanjing Medical University, Nanjing, Jiangsu, 211166, China.
| | - Ian M Adcock
- Airway Disease Section, National Heart and Lung Institute, Faculty of Medicine, Imperial College London, London, United Kingdom.
| | - Xin Yao
- Department of Respiratory & Critical Care Medicine, The First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing 210029, China.
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15
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Nyenhuis SM, Dixon A, Wood L, Lv N, Wittels N, Ronneberg CR, Xiao L, Dosala S, Marroquin A, Barve A, Harmon W, Poynter M, Parikh A, Camargo CA, Appel L, Ma J. The effects of the DASH dietary pattern on clinical outcomes and quality of life in adults with uncontrolled asthma: Design and methods of the ALOHA Trial. Contemp Clin Trials 2023; 131:107274. [PMID: 37380019 PMCID: PMC10629484 DOI: 10.1016/j.cct.2023.107274] [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: 03/19/2023] [Revised: 05/31/2023] [Accepted: 06/25/2023] [Indexed: 06/30/2023]
Abstract
BACKGROUND Poor diet quality is an important risk factor for increased asthma prevalence and poor asthma control. To address the question of whether adults with asthma can benefit from following a healthy diet, this trial will test the efficacy and mechanisms of action of a behavioral intervention promoting the Dietary Approaches to Stop Hypertension (DASH) dietary pattern with sodium reduction among patients with uncontrolled asthma. METHODS In this 2-arm randomized clinical trial, 320 racially/ethnically and socioeconomically diverse adults with uncontrolled asthma on standard controller therapy will be randomized to either a control or an intervention group and assessed at baseline, 3, 6 and 12 months. Control and intervention participants will receive education on lung health, asthma, and other general health topics; additionally, the intervention group will receive DASH behavioral counseling over 12 months. The primary hypothesis is that the DASH behavioral intervention, compared with the education-only control, will lead to significantly more participants with minimum clinically important improvement (responders) in asthma-specific quality of life at 12 months. Secondary hypotheses will test the intervention effects on other asthma (e.g., asthma control, lung function) and non-asthma outcomes (e.g., quality of life). Additionally, therapeutic (e.g., short chain fatty acids, cytokines) and nutritional biomarkers (e.g., dietary inflammatory index, carotenoids) will be assessed to understand the mechanisms of the intervention effect. CONCLUSION This trial can substantially advance asthma care by providing rigorous evidence on the benefits of a behavioral dietary intervention and mechanistic insights into the role of diet quality in asthma. CLINICALTRIALS gov #: NCT05251402.
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Affiliation(s)
- S M Nyenhuis
- Section of Allergy and Immunology, University of Chicago, Chicago, IL, USA
| | - A Dixon
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, University of Vermont, Burlington, VT, USA
| | - L Wood
- University of Newcastle, Newcastle, Australia
| | - N Lv
- Division of Academic Internal Medicine, Department of Medicine, University of Illinois Chicago, Chicago, IL, USA
| | - N Wittels
- Division of Academic Internal Medicine, Department of Medicine, University of Illinois Chicago, Chicago, IL, USA
| | - C R Ronneberg
- Division of Academic Internal Medicine, Department of Medicine, University of Illinois Chicago, Chicago, IL, USA
| | - L Xiao
- Department of Epidemiology and Population Health, Stanford University, Palo Alto, CA, United States of America
| | - S Dosala
- Division of Academic Internal Medicine, Department of Medicine, University of Illinois Chicago, Chicago, IL, USA
| | - A Marroquin
- Division of Academic Internal Medicine, Department of Medicine, University of Illinois Chicago, Chicago, IL, USA
| | - A Barve
- Division of Academic Internal Medicine, Department of Medicine, University of Illinois Chicago, Chicago, IL, USA
| | - W Harmon
- Division of Academic Internal Medicine, Department of Medicine, University of Illinois Chicago, Chicago, IL, USA
| | - M Poynter
- Division of Academic Internal Medicine, Department of Medicine, University of Illinois Chicago, Chicago, IL, USA
| | - A Parikh
- Division of Academic Internal Medicine, Department of Medicine, University of Illinois Chicago, Chicago, IL, USA
| | - C A Camargo
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA; Department of Emergency Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA; Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - L Appel
- Welch Center for Prevention, Epidemiology and Clinical Research, The Johns Hopkins University, Baltimore, MD, USA
| | - J Ma
- Division of Academic Internal Medicine, Department of Medicine, University of Illinois Chicago, Chicago, IL, USA.
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Liu XF, Shao JH, Liao YT, Wang LN, Jia Y, Dong PJ, Liu ZZ, He DD, Li C, Zhang X. Regulation of short-chain fatty acids in the immune system. Front Immunol 2023; 14:1186892. [PMID: 37215145 PMCID: PMC10196242 DOI: 10.3389/fimmu.2023.1186892] [Citation(s) in RCA: 30] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Accepted: 04/24/2023] [Indexed: 05/24/2023] Open
Abstract
A growing body of research suggests that short-chain fatty acids (SCFAs), metabolites produced by intestinal symbiotic bacteria that ferment dietary fibers (DFs), play a crucial role in the health status of symbiotes. SCFAs act on a variety of cell types to regulate important biological processes, including host metabolism, intestinal function, and immune function. SCFAs also affect the function and fate of immune cells. This finding provides a new concept in immune metabolism and a better understanding of the regulatory role of SCFAs in the immune system, which impacts the prevention and treatment of disease. The mechanism by which SCFAs induce or regulate the immune response is becoming increasingly clear. This review summarizes the different mechanisms through which SCFAs act in cells. According to the latest research, the regulatory role of SCFAs in the innate immune system, including in NLRP3 inflammasomes, receptors of TLR family members, neutrophils, macrophages, natural killer cells, eosinophils, basophils and innate lymphocyte subsets, is emphasized. The regulatory role of SCFAs in the adaptive immune system, including in T-cell subsets, B cells, and plasma cells, is also highlighted. In addition, we discuss the role that SCFAs play in regulating allergic airway inflammation, colitis, and osteoporosis by influencing the immune system. These findings provide evidence for determining treatment options based on metabolic regulation.
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Affiliation(s)
- Xiao-feng Liu
- Wuxi Affiliated Hospital of Nanjing University of Chinese Medicine, Wuxi, China
| | - Jia-hao Shao
- Wuxi Affiliated Hospital of Nanjing University of Chinese Medicine, Wuxi, China
| | - Yi-Tao Liao
- Wuxi Affiliated Hospital of Nanjing University of Chinese Medicine, Wuxi, China
| | - Li-Ning Wang
- School of Chinese Medicine, School of Integrated Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Yuan Jia
- Wuxi Affiliated Hospital of Nanjing University of Chinese Medicine, Wuxi, China
| | - Peng-jun Dong
- Wuxi Affiliated Hospital of Nanjing University of Chinese Medicine, Wuxi, China
| | - Zhi-zhong Liu
- Wuxi Affiliated Hospital of Nanjing University of Chinese Medicine, Wuxi, China
| | - Dan-dan He
- Wuxi Affiliated Hospital of Nanjing University of Chinese Medicine, Wuxi, China
| | - Chao Li
- Department of Spine, Wuxi Affiliated Hospital of Nanjing University of Chinese Medicine, Wuxi, China
| | - Xian Zhang
- Department of Spine, Wuxi Affiliated Hospital of Nanjing University of Chinese Medicine, Wuxi, China
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17
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Sdona E, Ekström S, Hallberg J, Andersson N, Håkansson N, Wolk A, Kull I, Melén E, Bergström A. Dietary fibre in relation to lung function and respiratory symptoms from childhood to adulthood. ERJ Open Res 2023; 9:00036-2023. [PMID: 37377658 PMCID: PMC10291303 DOI: 10.1183/23120541.00036-2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Accepted: 04/18/2023] [Indexed: 06/29/2023] Open
Abstract
Background Epidemiological studies suggest beneficial associations between dietary fibre intake, lung function and chronic respiratory symptoms in adults. Our aim was to investigate the association between dietary fibre intake in childhood and respiratory health up to adulthood. Methods The individual fibre intake of 1956 participants from the Swedish population-based birth cohort BAMSE was estimated from 98- and 107-item food frequency questionnaires at ages 8 and 16 years, respectively. At 8, 16 and 24 years, lung function was measured by spirometry. Respiratory symptoms (cough, mucus production, breathing difficulties/wheeze) were assessed by questionnaires, and airway inflammation by exhaled nitric oxide fraction (FENO) (≥25 ppb) at 24 years. Longitudinal associations with lung function were analysed by mixed-effects linear regression; associations with respiratory symptoms and airway inflammation were analysed by logistic regression, adjusting for potential confounders. Results There were no associations between fibre intake at 8 years, as total and from different sources, spirometry measurements and respiratory symptoms at 24 years. Higher fruit fibre intake tended to be inversely associated with airway inflammation at 24 years (OR 0.70, 95% CI 0.48-1.00), which became non-significant after exclusion of participants with food-related allergic symptoms (OR 0.74, 95% CI 0.49-1.10). No associations between fibre intake at 8 and 16 years as an updated lagged exposure and spirometry measurements up to 24 years were observed. Conclusion In this longitudinal study, we observed no consistent association between dietary fibre intake in childhood and lung function or respiratory symptoms up to adulthood. Further research on dietary fibre in relation to respiratory health across the life course is needed.
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Affiliation(s)
- Emmanouela Sdona
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
- Centre for Occupational and Environmental Medicine, Region Stockholm, Stockholm, Sweden
| | - Sandra Ekström
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
- Centre for Occupational and Environmental Medicine, Region Stockholm, Stockholm, Sweden
| | - Jenny Hallberg
- Department of Clinical Science and Education, Södersjukhuset, Karolinska Institutet, Stockholm, Sweden
- Sachs’ Children and Youth Hospital, Södersjukhuset, Stockholm, Sweden
| | - Niklas Andersson
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Niclas Håkansson
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Alicja Wolk
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Inger Kull
- Department of Clinical Science and Education, Södersjukhuset, Karolinska Institutet, Stockholm, Sweden
- Sachs’ Children and Youth Hospital, Södersjukhuset, Stockholm, Sweden
| | - Erik Melén
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
- Department of Clinical Science and Education, Södersjukhuset, Karolinska Institutet, Stockholm, Sweden
- Sachs’ Children and Youth Hospital, Södersjukhuset, Stockholm, Sweden
| | - Anna Bergström
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
- Centre for Occupational and Environmental Medicine, Region Stockholm, Stockholm, Sweden
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18
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Predictive and prognostic value of leptin status in asthma. NPJ Prim Care Respir Med 2023; 33:10. [PMID: 36914629 PMCID: PMC10011586 DOI: 10.1038/s41533-023-00332-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Accepted: 02/13/2023] [Indexed: 03/16/2023] Open
Abstract
Asthma is closely associated with inflammation. We evaluated the predictive and prognostic value of leptin status in asthma. We searched the electronic databases for articles that determined the leptin level in asthma cases through May 2020. We compared the differences of leptin level between asthma and non-asthma controls, as well as between severe and mild asthma cases. We also investigated the impact of age and gender on these differences by using meta-regression analysis. 59 studies were included in our pooled analysis. Asthma cases demonstrated significantly higher leptin level than that in non-asthma controls among overall populations (SMD:1.061, 95% CI: 0.784-1.338, p < 10-4), Caucasians (SMD:0.287, 95% CI: 0.125-0.448, p = 0.001), Asians (SMD:1.500, 95% CI: 1.064-1.936, p < 10-4) and Africans (SMD: 8.386, 95% CI: 6.519-10.253, p < 10-4). Severe asthma cases showed markedly higher leptin level than that in mild asthma cases among overall populations (SMD:1.638, 95% CI: 0.952-2.323, p < 10-4) and Asians (SMD:2.600, 95% CI: 1.854-3.345, p < 10-4). No significant difference of leptin level between severe and mild asthma was observed in Caucasians (SMD:-0.819, 95% CI: -1.998-0.360, p = 0.173). Cumulative analyses yielded similar results regarding the difference of leptin status between asthma and non-asthma controls, as well as between severe and mild asthma cases among overall populations. Age and male/ female ratio were not associated with the difference of leptin status between asthma and non-asthma controls (coefficient:-0.031, 95% CI: -0.123-0.061, p = 0.495; coefficient:0.172, 95% CI: -2.445-2.789, p = 0.895), as well as between severe and mild asthma cases among overall populations (coefficient:-0.072, 95% CI: -0.208-0.063, p = 0.279; coefficient: 2.373, 95% CI: -0.414-5.161, p = 0.090). Asthma demonstrated significantly higher level of leptin than that in non-asthma controls among overall populations, Caucasians, Asians and Africans. Severe asthma cases showed markedly higher leptin level than that in mild cases among overall populations and Asians. Leptin may be a risk predictor and prognostic marker of asthma. Early monitoring and intervention of leptin may be needed for asthma.
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Diet Quality and Exhaled Breath Condensate Markers in a Sample of School-Aged Children. CHILDREN (BASEL, SWITZERLAND) 2023; 10:children10020263. [PMID: 36832392 PMCID: PMC9954902 DOI: 10.3390/children10020263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 01/22/2023] [Accepted: 01/25/2023] [Indexed: 02/03/2023]
Abstract
Exhaled breath condensate (EBC) analysis is a recently developed, non-invasive method used to identify and quantify biomarkers, mainly those coming from the lower respiratory tract. It seems that diet can influence the airway's inflammation and change the exhaled breath composition. This study aimed to assess the association between diet quality intake and markers in EBC among school-aged children. A cross-sectional analysis included 150 children (48.3% females, aged 7-12 years, mean age: 8.7 ± 0.8 years) from 20 schools across Porto, Portugal. We assessed diet quality through the Healthy Eating Index (HEI)-2015, which was estimated based on a single 24 h food recall questionnaire. EBC samples were collected, and we assessed their ionic content (Na+, K+) and conductivity. The association between diet quality and Na+, K+, Na+/K+ ratio and conductivity was estimated using logistic regression models adjusted for potential confounders. After adjustment, a higher quality diet score increases the odds of higher conductivity values of the EBC (aOR = 1.04, 95%CI 1.00; 1.08). Our findings suggest that a higher diet quality in school-aged children is associated with higher conductivity levels of the EBC.
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Marathe SJ, Snider MA, Flores-Torres AS, Dubin PJ, Samarasinghe AE. Human matters in asthma: Considering the microbiome in pulmonary health. Front Pharmacol 2022; 13:1020133. [PMID: 36532717 PMCID: PMC9755222 DOI: 10.3389/fphar.2022.1020133] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Accepted: 11/15/2022] [Indexed: 07/25/2023] Open
Abstract
Microbial communities form an important symbiotic ecosystem within humans and have direct effects on health and well-being. Numerous exogenous factors including airborne triggers, diet, and drugs impact these established, but fragile communities across the human lifespan. Crosstalk between the mucosal microbiota and the immune system as well as the gut-lung axis have direct correlations to immune bias that may promote chronic diseases like asthma. Asthma initiation and pathogenesis are multifaceted and complex with input from genetic, epigenetic, and environmental components. In this review, we summarize and discuss the role of the airway microbiome in asthma, and how the environment, diet and therapeutics impact this low biomass community of microorganisms. We also focus this review on the pediatric and Black populations as high-risk groups requiring special attention, emphasizing that the whole patient must be considered during treatment. Although new culture-independent techniques have been developed and are more accessible to researchers, the exact contribution the airway microbiome makes in asthma pathogenesis is not well understood. Understanding how the airway microbiome, as a living entity in the respiratory tract, participates in lung immunity during the development and progression of asthma may lead to critical new treatments for asthma, including population-targeted interventions, or even more effective administration of currently available therapeutics.
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Affiliation(s)
- Sandesh J. Marathe
- Department of Pediatrics, College of Medicine, University of Tennessee Health Science Center, Memphis, TN, United States
- Division of Pulmonology, Allergy-Immunology, and Sleep, Memphis, TN, United States
- Children’s Foundation Research Institute, Le Bonheur Children’s Hospital, Memphis, TN, United States
| | - Mark A. Snider
- Department of Pediatrics, College of Medicine, University of Tennessee Health Science Center, Memphis, TN, United States
- Division of Emergency Medicine, College of Medicine, University of Tennessee Health Science Center, Memphis, TN, United States
| | - Armando S. Flores-Torres
- Department of Pediatrics, College of Medicine, University of Tennessee Health Science Center, Memphis, TN, United States
- Children’s Foundation Research Institute, Le Bonheur Children’s Hospital, Memphis, TN, United States
| | - Patricia J. Dubin
- Department of Pediatrics, College of Medicine, University of Tennessee Health Science Center, Memphis, TN, United States
- Division of Pulmonology, Allergy-Immunology, and Sleep, Memphis, TN, United States
| | - Amali E. Samarasinghe
- Department of Pediatrics, College of Medicine, University of Tennessee Health Science Center, Memphis, TN, United States
- Division of Pulmonology, Allergy-Immunology, and Sleep, Memphis, TN, United States
- Children’s Foundation Research Institute, Le Bonheur Children’s Hospital, Memphis, TN, United States
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García-Castro A, Román-Gutiérrez AD, Castañeda-Ovando A, Cariño-Cortés R, Acevedo-Sandoval OA, López-Perea P, Guzmán-Ortiz FA. Cereals as a Source of Bioactive Compounds with Anti-Hypertensive Activity and Their Intake in Times of COVID-19. Foods 2022; 11:3231. [PMCID: PMC9601750 DOI: 10.3390/foods11203231] [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: 11/16/2022] Open
Abstract
Cereals have phytochemical compounds that can diminish the incidence of chronic diseases such as hypertension. The angiotensin-converting enzyme 2 (ACE2) participates in the modulation of blood pressure and is the principal receptor of the virus SARS-CoV-2. The inhibitors of the angiotensin-converting enzyme (ACE) and the block receptors of angiotensin II regulate the expression of ACE2; thus, they could be useful in the treatment of patients infected with SARS-CoV-2. The inferior peptides from 1 to 3 kDa and the hydrophobic amino acids are the best candidates to inhibit ACE, and these compounds are present in rice, corn, wheat, oats, sorghum, and barley. In addition, the vitamins C and E, phenolic acids, and flavonoids present in cereals show a reduction in the oxidative stress involved in the pathogenesis of hypertension. The influence of ACE on hypertension and COVID-19 has turned into a primary point of control and treatment from the nutritional perspective. The objective of this work was to describe the inhibitory effect of the angiotensin-converting enzyme that the bioactive compounds present in cereals possess in order to lower blood pressure and how their consumption could be associated with reducing the virulence of COVID-19.
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Affiliation(s)
- Abigail García-Castro
- Área Académica de Química, Universidad Autónoma del Estado de Hidalgo, Carretera Pachuca–Tulancingo, Km 4.5 s/n, Mineral de la Reforma, Hidalgo 42184, Mexico
| | - Alma Delia Román-Gutiérrez
- Área Académica de Química, Universidad Autónoma del Estado de Hidalgo, Carretera Pachuca–Tulancingo, Km 4.5 s/n, Mineral de la Reforma, Hidalgo 42184, Mexico
- Correspondence: (A.D.R.-G.); (F.A.G.-O.)
| | - Araceli Castañeda-Ovando
- Área Académica de Química, Universidad Autónoma del Estado de Hidalgo, Carretera Pachuca–Tulancingo, Km 4.5 s/n, Mineral de la Reforma, Hidalgo 42184, Mexico
| | - Raquel Cariño-Cortés
- Área Académica de Medicina, Instituto de Ciencias de la Salud, Universidad Autónoma del Estado de Hidalgo, Elíseo Ramírez Ulloa, 400, Doctores, Pachuca de Soto 42090, Mexico
| | - Otilio Arturo Acevedo-Sandoval
- Área Académica de Química, Universidad Autónoma del Estado de Hidalgo, Carretera Pachuca–Tulancingo, Km 4.5 s/n, Mineral de la Reforma, Hidalgo 42184, Mexico
| | - Patricia López-Perea
- Área de Ingeniería Agroindustrial, Universidad Politécnica Francisco I. Madero, Francisco I. Madero, Hidalgo 42660, Mexico
| | - Fabiola Araceli Guzmán-Ortiz
- CONACYT, Universidad Autónoma del Estado de Hidalgo, Carretera Pachuca-Tulancingo Km 4.5 s/n, Mineral de la Reforma, Hidalgo 42184, Mexico
- Correspondence: (A.D.R.-G.); (F.A.G.-O.)
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22
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The Impact of Dietary Intervention in Obese Children on Asthma Prevention and Control. Nutrients 2022; 14:nu14204322. [PMID: 36297006 PMCID: PMC9611787 DOI: 10.3390/nu14204322] [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: 09/11/2022] [Revised: 10/11/2022] [Accepted: 10/13/2022] [Indexed: 11/07/2022] Open
Abstract
The prevalence of both asthma and obesity in the pediatric population is steadily increasing, and even the obese-asthma phenotypes are postulated. Obese children with asthma experience more asthma symptoms, more frequent exacerbations, and worse response to treatment; they also report a lower quality of life compared with lean asthmatics. Some of the etiological factors for asthma and obesity may overlap. Perhaps asthma and obesity share a common genetic and immunologic origin. Diet is a compelling modifiable factor in obesity and asthma prevention and control, although the relationship between these two diseases is certainly multifactorial. In this article, we analyze the impact of dietary intervention and weight loss in obese children on asthma prevention and control.
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23
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Rey-Mariño A, Francino MP. Nutrition, Gut Microbiota, and Allergy Development in Infants. Nutrients 2022; 14:nu14204316. [PMID: 36297000 PMCID: PMC9609088 DOI: 10.3390/nu14204316] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 10/09/2022] [Accepted: 10/11/2022] [Indexed: 11/07/2022] Open
Abstract
The process of gut microbiota development in infants is currently being challenged by numerous factors associated with the contemporary lifestyle, including diet. A thorough understanding of all aspects of microbiota development will be necessary for engineering strategies that can modulate it in a beneficial direction. The long-term consequences for human development and health of alterations in the succession pattern that forms the gut microbiota are just beginning to be explored and require much further investigation. Nevertheless, it is clear that gut microbiota development in infancy bears strong associations with the risk for allergic disease. A useful understanding of microbial succession in the gut of infants needs to reveal not only changes in taxonomic composition but also the development of functional capacities through time and how these are related to diet and various environmental factors. Metagenomic and metatranscriptomic studies have started to produce insights into the trends of functional repertoire and gene expression change within the first year after birth. This understanding is critical as during this period the most substantial development of the gut microbiota takes place and the relations between gut microbes and host immunity are established. However, further research needs to focus on the impact of diet on these changes and on how diet can be used to counteract the challenges posed by modern lifestyles to microbiota development and reduce the risk of allergic disease.
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Affiliation(s)
- Alejandra Rey-Mariño
- Genomics and Health Department, Foundation for the Promotion of Health and Biomedical Research of the Valencia Region (FISABIO), 46020 València, Spain
| | - M. Pilar Francino
- Genomics and Health Department, Foundation for the Promotion of Health and Biomedical Research of the Valencia Region (FISABIO), 46020 València, Spain
- CIBER en Epidemiología y Salud Pública (CIBERESP), 28001 Madrid, Spain
- Correspondence:
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24
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A Metabolic Activity Recovery of the Intestinal Microbiota in the Patients with Bronchial Asthma. Pulm Med 2022; 2022:9902438. [PMID: 36247882 PMCID: PMC9553837 DOI: 10.1155/2022/9902438] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2022] [Revised: 08/06/2022] [Accepted: 08/24/2022] [Indexed: 11/18/2022] Open
Abstract
Goals. We assessed the possibilities of correcting the short-chain fatty acids (SCFA) content and profiles in feces of patients with bronchial asthma. Background. It was established that the high biological diversity of intestinal microorganisms promotes the needed SCFAs production, which induces immune regulatory pathways and contributes to the anti-inflammatory response. Study. A group of 30 patients with allergic bronchial asthma (BA) were investigated in our study. All of the patients were tested for the presence of SIBO by the SCFA spectrum determination. For the SIBO treatment, 10 patients from the studied group were prescribed Rifaximinum with the 200 mg dose at 3 times a day for a week; the other 10 patients were prescribed Rifaximinum at the same dose, followed by the administration of the Lactobalance probiotic in capsules at 3 times a day for a month. A month probiotic course was assigned to the remaining 10 patients without SIBO, as part of the BA complex therapy. The SCFA studies were immediately carried out for all of the patients after the 1 month probiotic therapy course. Results. A normalization of the SCFA spectrum and anaerobic index for all of the studied patients were noted. Upon taking the probiotics, it was revealed in the patients without SIBO that the total content of fatty acids (
), acetic and butyric acid (
) had increased. The Rifaximinum course, followed by administration of the probiotics led to a decrease of the relative amount of isoacids and ratio of isoacids/acids in the studied patients as compared to the patients who had received Rifaximinum for the SIBO treatment only (
). Conclusion. The obtained results demonstrate a potential opportunity of the drug influence on the active bacterial metabolites composition and amount in the intestinal biotope; as it was confirmed by the restoration of the intestinal microbiocenosis and microorganism habitat.
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25
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Hajipour A, Afsharfar M, Jonoush M, Ahmadzadeh M, Gholamalizadeh M, Hassanpour Ardekanizadeh N, Doaei S, Mohammadi‐Nasrabadi F. The effects of dietary fiber on common complications in critically ill patients; with a special focus on viral infections; a systematic reveiw. Immun Inflamm Dis 2022; 10:e613. [PMID: 35478440 PMCID: PMC9017620 DOI: 10.1002/iid3.613] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Revised: 02/16/2022] [Accepted: 03/14/2022] [Indexed: 12/17/2022] Open
Abstract
Background Viral infections are mostly highly contagious and may cause widespread health problems. Some studies reported that the dietary fiber (DF) may be effective in reducing the complications of viral infections in intensive care unit (ICU) patients. The present review study aimed to investigate the effect of DF on common complications in critically ill patients with viral infections. Methods A literature review was conducted for the published papers in English from January 2001 to July 2021 using related keywords. Studies with clinical trial or case‐control design described the effects of fiber intake on the complications of viral infections in patients admitted to the ICU were collected. Results DF may reduce the mortality rate of viral infections through modulating inflammatory processes. A higher intake of DF intake may improve hyperglycemia and impaired glucose tolerance in patients with viral infections. A high‐fiber formula in enteral nutrition was reported to reduce the risk of diarrhea in patients with viral infections. Conclusion DF may reduce the complications of viral infections such as inflammation, diarrhea, hyperglycemia, and mortality in critically ill patients. Future longitudinal studies on the amount and type of DF are warranted.
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Affiliation(s)
- Azadeh Hajipour
- Department of Nutrition, School of Health Qazvin University of Medical Sciences Qazvin Iran
| | - Maryam Afsharfar
- Department of Nutrition, School of Medicine Zahedan University of Medical Sciences Zahedan Iran
| | - Mona Jonoush
- Department of Nutrition, School of Medicine Mashhad University of Medical Sciences Mashhad Iran
| | - Mina Ahmadzadeh
- Department of Clinical Nutrition and Dietetics, Faculty of Nutrition and Food Technology, National Nutrition and Food Technology Research Institute Shahid Beheshti University of Medical Sciences Tehran Iran
| | - Maryam Gholamalizadeh
- School of Medicine, Cancer Research Center Shahid Beheshti University of Medical Sciences Tehran Iran
| | - Naeemeh Hassanpour Ardekanizadeh
- Department of Clinical Nutrition and Dietetics, Faculty of Nutrition and Food Technology, National Nutrition and Food Technology Research Institute Shahid Beheshti University of Medical Sciences Tehran Iran
| | - Saeid Doaei
- Reproductive Health Research Center, Department of Obstetrics and Gynecology, School of Medicine, Al‐Zahra Hospital Guilan University of Medical Sciences Rasht Iran
| | - Fatemeh Mohammadi‐Nasrabadi
- Department of Food and Nutrition Policy and Planning Research, Faculty of Nutrition Sciences and Food Technology, National Nutrition and Food Technology Research Institute Shahid Beheshti University of Medical Sciences Tehran Iran
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26
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Mindt BC, DiGiandomenico A. Microbiome Modulation as a Novel Strategy to Treat and Prevent Respiratory Infections. Antibiotics (Basel) 2022; 11:antibiotics11040474. [PMID: 35453224 PMCID: PMC9029693 DOI: 10.3390/antibiotics11040474] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Revised: 03/26/2022] [Accepted: 03/28/2022] [Indexed: 02/06/2023] Open
Abstract
Acute and chronic lower airway disease still represent a major cause of morbidity and mortality on a global scale. With the steady rise of multidrug-resistant respiratory pathogens, such as Pseudomonas aeruginosa and Klebsiella pneumoniae, we are rapidly approaching the advent of a post-antibiotic era. In addition, potentially detrimental novel variants of respiratory viruses continuously emerge with the most prominent recent example being severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). To this end, alternative preventive and therapeutic intervention strategies will be critical to combat airway infections in the future. Chronic respiratory diseases are associated with alterations in the lung and gut microbiome, which is thought to contribute to disease progression and increased susceptibility to infection with respiratory pathogens. In this review we will focus on how modulating and harnessing the microbiome may pose a novel strategy to prevent and treat pulmonary infections as well as chronic respiratory disease.
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27
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Williams EJ, Berthon BS, Stoodley I, Williams LM, Wood LG. Nutrition in Asthma. Semin Respir Crit Care Med 2022; 43:646-661. [PMID: 35272384 DOI: 10.1055/s-0042-1742385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
An emerging body of evidence suggests that diet plays an important role in both the development and management of asthma. The relationship between dietary intake and asthma risk has been explored in epidemiological studies, though intervention trials examining the effects of nutrient intake and dietary patterns on asthma management are scarce. Evidence for diets high in fruits and vegetables, antioxidants, omega-3 fatty acids and soluble fiber such as the Mediterranean diet is conflicting. However, some studies suggest that these diets may reduce the risk of asthma, particularly in young children, and could have positive effects on disease management. In contrast, a Westernized dietary pattern, high in saturated fatty acids, refined grains, and sugars may promote an inflammatory environment resulting in the onset of disease and worsening of asthma outcomes. This review will summarize the state of the evidence for the impact of whole dietary patterns, as well as individual nutrients on the prevalence and management of asthma.
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Affiliation(s)
- Evan J Williams
- Hunter Medical Research Institute and School of Biomedical Science and Pharmacy, The University of Newcastle, Callaghan, Australia
| | - Bronwyn S Berthon
- Hunter Medical Research Institute and School of Biomedical Science and Pharmacy, The University of Newcastle, Callaghan, Australia
| | - Isobel Stoodley
- Hunter Medical Research Institute and School of Biomedical Science and Pharmacy, The University of Newcastle, Callaghan, Australia
| | - Lily M Williams
- Hunter Medical Research Institute and School of Biomedical Science and Pharmacy, The University of Newcastle, Callaghan, Australia
| | - Lisa G Wood
- Hunter Medical Research Institute and School of Biomedical Science and Pharmacy, The University of Newcastle, Callaghan, Australia
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28
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Association between Diet Quality and Adolescent Wheezing: Effect Modification by Environmental Tobacco Smoke Exposure. Ann Am Thorac Soc 2022; 19:1328-1337. [PMID: 35263245 DOI: 10.1513/annalsats.202107-837oc] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
RATIONALE Protective effects of a high quality diet on respiratory health, particularly among youths exposed to environmental tobacco smoke (ETS), are unknown. OBJECTIVES To assess if a higher quality diet is associated with improved respiratory symptoms and lung function among adolescents, and if these associations are modified by ETS exposure. METHODS This was a cross-sectional study on 7,026 nonsmoking adolescents of the 2003-2012 National Health and Nutrition Examination Survey. Diet quality was assessed using the Healthy Eating Index-2010 score (HEI-2010), categorized into quintiles. ETS exposure was measured using serum cotinine, dichotomized as high (>2.99 ng/ml) or low (≤2.99 ng/ml). Outcomes included the presence of wheezing and cough symptoms in the past 12 months, and in a sub-group, spirometric lung function. Survey-design adjusted logistic and linear models evaluated associations between diet and 1) respiratory symptoms and 2) lung function, respectively, and assessed the interaction between HEI-2010 and serum cotinine. RESULTS While there were no significant associations between diet quality and respiratory symptoms, there was a significant interaction between HEI-2010 and serum cotinine on wheezing (pint = 0.011). In models stratified by serum cotinine, adolescents with high serum cotinine and the healthiest diet (5th quintile HEI-2010) experienced lower wheezing odds (OR, 0.10; 95% CI, 0.02-0.61), compared to those with the poorest diet (1st quintile HEI-2010). In contrast, among adolescents with low serum cotinine, there were no significant differences in any respiratory symptoms between those with the highest, compared to the lowest diet quality. Of the sub-group with spirometry data (n = 3,166), there was a trend towards better lung function with improving diet quality, although this did not achieve statistical significance. There was no effect modification by ETS exposure on the relationship between diet quality and lung function. CONCLUSIONS Consuming a higher quality diet was associated with lower wheezing odds in adolescents with substantial ETS exposure. While longitudinal studies are needed, public health interventions to improve diet quality in vulnerable, environmentally-exposed populations merit consideration.
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29
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Santos L. The impact of nutrition and lifestyle modification on health. Eur J Intern Med 2022; 97:18-25. [PMID: 34670680 DOI: 10.1016/j.ejim.2021.09.020] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/11/2021] [Revised: 09/12/2021] [Accepted: 09/27/2021] [Indexed: 12/30/2022]
Abstract
The main recommendations from public health entities include healthy diets and physical activity as the main lifestyle factors impacting the development of chronic diseases such as cardiovascular and metabolic diseases, cancer, and even neurological diseases. Randomized clinical trials have been designed to demonstrate those lifestyle modifications can change the pattern of chronic diseases development and progression. Among these, nutrition is one of the most impacting factors. Therefore, nutrition and diets were also included in different randomized clinical trials, and most of them showed a favorable impact of nutrition modification on the participant's health. Nevertheless, study designs were considerably different, and future studies are needed to support nutrition modifications further. The choice of a healthy considered diet, like the Mediterranean diet, was shown to impact chronic diseases, cardiovascular risk, and adult life expectancy mainly due to its anti-inflammatory and antioxidant properties. Furthermore, a high intake of fibers, fruits, and vegetables together with a low intake of fat and energy-dense, processed foods contribute to an inflammation reduction and a more robust immune system leading. Besides these well-known properties, all lifestyle modifications must be personalized according to the availability of foods, geographic localizations, and the healthy status of the patient.
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Affiliation(s)
- Lèlita Santos
- Internal Medicine Service, Coimbra Hospital and University Centre, Coimbra, Portugal; Faculty of Medicine, University of Coimbra, Portugal; CIMAGO Research Centre, Faculty of Medicine, University of Coimbra, Portugal.
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30
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Yang Y, Jiang X, Cai X, Zhang L, Li W, Che L, Fang Z, Feng B, Lin Y, Xu S, Li J, Zhao X, Wu D, Zhuo Y. Deprivation of Dietary Fiber Enhances Susceptibility of Piglets to Lung Immune Stress. Front Nutr 2022; 9:827509. [PMID: 35223957 PMCID: PMC8867169 DOI: 10.3389/fnut.2022.827509] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Accepted: 01/07/2022] [Indexed: 12/12/2022] Open
Abstract
Growing evidence suggests that dietary fiber enhances short-chain fatty acid (SCFA) producing gut microbes, improving lung immunity against invading pathogens via the gut–lung axis. This study investigated the effects of dietary fiber on lung immune stress after challenge with complete Freund's adjuvant (CFA) containing killed Mycobacterium tuberculosis. Thirty-six healthy hybrid Duroc, Landrace, and Yorkshire male piglets (9.7 ± 1.07 kg, 35 ± 3 days) were randomly fed a low fiber (LF) diet formulated with semipurified corn starch, soy protein concentrate, and fishmeal or a high fiber (HF) diet composed of 1,000 g LF diet plus 20 g inulin, and 100 g cellulose. Piglets were housed individually in the metabolism cages with eighteen replicates per group, with one pig per cage. All the piglets received similar levels of digestible energy and lysine and had similar weight gain. After dietary treatment for 28 days, nine piglets per group were intravenously administered CFA (0.4 mg/kg) or an equivalent amount of sterile saline in a 2 × 2 factorial arrangement. In piglets fed the LF diet, CFA caused lung damage and elevated serum C-reactive protein and relative mRNA expression of genes related to lung inflammation (NLRP3, Casp1, ASC, IL1β, IL18, Bax). Compared with the LF diet, the HF diet increased bacterial diversity and Deferribacteres (p = 0.01) in the phylum level and unidentified_Ruminococcaceae (p = 0.03) and Catenisphaera (p < 0.01) in the genus level. The HF diet improved increased short-chain fatty acids in feces, blood, cecal, and colonic digesta; reduced lung damage; and promoted lung recovery. Overall, dietary fiber deprivation enhanced the risk of piglets to lung immune stress, demonstrating the importance of dietary fiber in gut–lung health.
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Affiliation(s)
- Yi Yang
- State Key Laboratory for Animal Disease-Resistant Nutrition of the Ministry of Education of China, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China
| | - Xuemei Jiang
- State Key Laboratory for Animal Disease-Resistant Nutrition of the Ministry of Education of China, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China
| | - Xuelin Cai
- State Key Laboratory for Animal Disease-Resistant Nutrition of the Ministry of Education of China, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China
| | - Lijia Zhang
- State Key Laboratory for Animal Disease-Resistant Nutrition of the Ministry of Education of China, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China
| | - Wentao Li
- State Key Laboratory for Animal Disease-Resistant Nutrition of the Ministry of Education of China, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China
| | - Lianqiang Che
- State Key Laboratory for Animal Disease-Resistant Nutrition of the Ministry of Education of China, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China
| | - Zhengfeng Fang
- State Key Laboratory for Animal Disease-Resistant Nutrition of the Ministry of Education of China, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China
| | - Bin Feng
- State Key Laboratory for Animal Disease-Resistant Nutrition of the Ministry of Education of China, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China
| | - Yan Lin
- State Key Laboratory for Animal Disease-Resistant Nutrition of the Ministry of Education of China, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China
| | - Shengyu Xu
- State Key Laboratory for Animal Disease-Resistant Nutrition of the Ministry of Education of China, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China
| | - Jian Li
- State Key Laboratory for Animal Disease-Resistant Nutrition of the Ministry of Education of China, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China
| | - Xilun Zhao
- State Key Laboratory for Animal Disease-Resistant Nutrition of the Ministry of Education of China, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China
| | - De Wu
- State Key Laboratory for Animal Disease-Resistant Nutrition of the Ministry of Education of China, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China
| | - Yong Zhuo
- State Key Laboratory for Animal Disease-Resistant Nutrition of the Ministry of Education of China, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China
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31
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Shi Z, El-Obeid T, Meftah Z, Alawi A, Said S, Ganji V. Fast food and sweet intake pattern is directly associated with the prevalence of asthma in a Qatari population. Eur J Clin Nutr 2022; 76:428-433. [PMID: 34168291 PMCID: PMC8907074 DOI: 10.1038/s41430-021-00959-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2021] [Revised: 05/26/2021] [Accepted: 06/08/2021] [Indexed: 02/06/2023]
Abstract
OBJECTIVE The relationship between dietary patterns and the prevalence of asthma is not well understood. We aimed to investigate the association between dietary patterns and asthma in adults in Qatar. METHODS In this study, cross-sectional data from the Qatar Biobank were used (n = 986). Participants were Qatari or long-term Qatar residents aged ≥20 years old. A food frequency questionnaire was used to collect dietary intakes. Three dietary patterns were identified using factor analysis. Multivariable logistic regression was used to assess the association between dietary patterns scores and asthma. RESULTS Among 986 eligible participants, 6.6% (n = 65) reported that they were diagnosed with asthma. Three dietary patterns were identified. These were (1) "Traditional" (high intake of rice, chicken/meat/fish, and breads); (2) "Prudent" (high intake of fruits, vegetables, and fish); and (3) "Fast Food/Sweets" (high intake of desserts, fast food, and soft drinks). The fast food/sweet dietary pattern was associated with increased likelihood of having asthma [comparing high vs. low tertile, OR for asthma = 1.25; 95% CI (1.02-1.54); p = 0.035]. Traditional and Prudent dietary patterns were not associated with the prevalence of asthma. CONCLUSION The fast food/sweet dietary pattern was directly associated with the prevalence of asthma among adults in Qatar. Reducing the fast foods and sugary-rich foods may be beneficial for respiratory health.
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Affiliation(s)
- Zumin Shi
- grid.412603.20000 0004 0634 1084Human Nutrition Department, College of Health Sciences, QU Health, Qatar University, P.O. Box 2713, Doha, Qatar
| | - Tahra El-Obeid
- grid.412603.20000 0004 0634 1084Human Nutrition Department, College of Health Sciences, QU Health, Qatar University, P.O. Box 2713, Doha, Qatar
| | - Zainab Meftah
- grid.412603.20000 0004 0634 1084Human Nutrition Department, College of Health Sciences, QU Health, Qatar University, P.O. Box 2713, Doha, Qatar
| | - Amal Alawi
- grid.412603.20000 0004 0634 1084Human Nutrition Department, College of Health Sciences, QU Health, Qatar University, P.O. Box 2713, Doha, Qatar
| | - Suad Said
- grid.412603.20000 0004 0634 1084Human Nutrition Department, College of Health Sciences, QU Health, Qatar University, P.O. Box 2713, Doha, Qatar
| | - Vijay Ganji
- grid.412603.20000 0004 0634 1084Human Nutrition Department, College of Health Sciences, QU Health, Qatar University, P.O. Box 2713, Doha, Qatar
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32
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Dietary Fibers: Effects, Underlying Mechanisms and Possible Role in Allergic Asthma Management. Nutrients 2021; 13:nu13114153. [PMID: 34836408 PMCID: PMC8621630 DOI: 10.3390/nu13114153] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Revised: 11/10/2021] [Accepted: 11/18/2021] [Indexed: 12/13/2022] Open
Abstract
The prevalence of asthma is increasing, but the cause remains under debate. Research currently focuses on environmental and dietary factors that may impact the gut-lung axis. Dietary fibers are considered to play a crucial role in supporting diversity and activity of the microbiome, as well as immune homeostasis in the gut and lung. This review discusses the current state of knowledge on how dietary fibers and their bacterial fermentation products may affect the pathophysiology of allergic asthma. Moreover, the impact of dietary fibers on early type 2 asthma management, as shown in both pre-clinical and clinical studies, is described. Short-chain fatty acids, fiber metabolites, modulate host immunity and might reduce the risk of allergic asthma development. Underlying mechanisms include G protein-coupled receptor activation and histone deacetylase inhibition. These results are supported by studies in mice, children and adults with allergic asthma. Fibers might also exert direct effects on the immune system via yet to be elucidated mechanisms. However, the effects of specific types of fiber, dosages, duration of treatment, and combination with probiotics, need to be explored. There is an urgent need to further valorize the potential of specific dietary fibers in prevention and treatment of allergic asthma by conducting more large-scale dietary intervention trials.
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Pediatric Obesity-Related Asthma: The Role of Nutrition and Nutrients in Prevention and Treatment. Nutrients 2021; 13:nu13113708. [PMID: 34835964 PMCID: PMC8620690 DOI: 10.3390/nu13113708] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Revised: 09/30/2021] [Accepted: 10/20/2021] [Indexed: 12/31/2022] Open
Abstract
Childhood obesity rates have dramatically risen in numerous countries worldwide. Obesity is likely a factor in increased asthma risk, which is already one of the most widespread chronic respiratory pathologies. The pathogenic mechanism of asthma risk has still not yet been fully elucidated. Moreover, the role of obesity-related inflammation and pulmonary overreaction to environmental triggers, which ultimately result in asthma-like symptoms, and the importance of dietary characteristics is well recognized. Diet is an important adjustable element in the asthma development. Food-specific composition of the diet, in particular fat, sugar, and low-quality nutrients, is likely to promote the chronic inflammatory state seen in asthmatic patients with obesity. An unbalanced diet or supplementation as a way to control asthma more efficiently has been described. A personalized dietary intervention may improve respiratory symptoms and signs and therapeutic response. In this narrative review, we presented and discussed more recent literature on asthma associated with obesity among children, focusing on the risk of asthma among children with obesity, asthma as a result of obesity focusing on the role of adipose tissue as a mediator of systemic and local airway inflammation implicated in asthma regulation, and the impact of nutrition and nutrients in the development and treatment of asthma. Appropriate early nutritional intervention could possibly be critical in preventing and managing asthma associated with obesity among children.
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van Daal MT, Folkerts G, Garssen J, Braber S. Pharmacological Modulation of Immune Responses by Nutritional Components. Pharmacol Rev 2021; 73:198-232. [PMID: 34663688 DOI: 10.1124/pharmrev.120.000063] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
The incidence of noncommunicable diseases (NCDs) has increased over the last few decades, and one of the major contributors to this is lifestyle, especially diet. High intake of saturated fatty acids and low intake of dietary fiber is linked to an increase in NCDs. Conversely, a low intake of saturated fatty acids and a high intake of dietary fiber seem to have a protective effect on general health. Several mechanisms have been identified that underlie this phenomenon. In this review, we focus on pharmacological receptors, including the aryl hydrocarbon receptor, binding partners of the retinoid X receptor, G-coupled protein receptors, and toll-like receptors, which can be activated by nutritional components and their metabolites. Depending on the nutritional component and the receptors involved, both proinflammatory and anti-inflammatory effects occur, leading to an altered immune response. These insights may provide opportunities for the prevention and treatment of NCDs and their inherent (sub)chronic inflammation. SIGNIFICANCE STATEMENT: This review summarizes the reported effects of nutritional components and their metabolites on the immune system through manipulation of specific (pharmacological) receptors, including the aryl hydrocarbon receptor, binding partners of the retinoid X receptor, G-coupled protein receptors, and toll-like receptors. Nutritional components, such as vitamins, fibers, and unsaturated fatty acids are able to resolve inflammation, whereas saturated fatty acids tend to exhibit proinflammatory effects. This may aid decision makers and scientists in developing strategies to decrease the incidence of noncommunicable diseases.
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Affiliation(s)
- Marthe T van Daal
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, 3584 CG, Utrecht, The Netherlands (M.T.v.D., G.F., J.G., S.B.); and Danone Nutricia Research, 3584 CT, Utrecht, The Netherlands (J.G.)
| | - Gert Folkerts
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, 3584 CG, Utrecht, The Netherlands (M.T.v.D., G.F., J.G., S.B.); and Danone Nutricia Research, 3584 CT, Utrecht, The Netherlands (J.G.)
| | - Johan Garssen
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, 3584 CG, Utrecht, The Netherlands (M.T.v.D., G.F., J.G., S.B.); and Danone Nutricia Research, 3584 CT, Utrecht, The Netherlands (J.G.)
| | - Saskia Braber
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, 3584 CG, Utrecht, The Netherlands (M.T.v.D., G.F., J.G., S.B.); and Danone Nutricia Research, 3584 CT, Utrecht, The Netherlands (J.G.)
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Sdona E, Georgakou AV, Ekström S, Bergström A. Dietary Fibre Intake in Relation to Asthma, Rhinitis and Lung Function Impairment-A Systematic Review of Observational Studies. Nutrients 2021; 13:nu13103594. [PMID: 34684594 PMCID: PMC8539618 DOI: 10.3390/nu13103594] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Revised: 10/08/2021] [Accepted: 10/11/2021] [Indexed: 12/21/2022] Open
Abstract
A high intake of dietary fibre has been associated with a reduced risk of several chronic diseases. This study aimed to review the current evidence on dietary fibre in relation to asthma, rhinitis and lung function impairment. Electronic databases were searched in June 2021 for studies on the association between dietary fibre and asthma, rhinitis, chronic obstructive pulmonary disease (COPD) and lung function. Observational studies with cross-sectional, case–control or prospective designs were included. Studies on animals, case studies and intervention studies were excluded. The quality of the evidence from individual studies was evaluated using the RoB-NObs tool. The World Cancer Research Fund criteria were used to grade the strength of the evidence. Twenty studies were included in this systematic review, of which ten were cohort studies, eight cross-sectional and two case–control studies. Fibre intake during pregnancy or childhood was examined in three studies, while seventeen studies examined the intake during adulthood. There was probable evidence for an inverse association between dietary fibre and COPD and suggestive evidence for a positive association with lung function. However, the evidence regarding asthma and rhinitis was limited and inconsistent. Further research is needed on dietary fibre intake and asthma, rhinitis and lung function among adults and children.
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Affiliation(s)
- Emmanouela Sdona
- Institute of Environmental Medicine, Karolinska Institute, 171 77 Stockholm, Sweden; (A.V.G.); (S.E.); (A.B.)
- Correspondence:
| | - Athina Vasiliki Georgakou
- Institute of Environmental Medicine, Karolinska Institute, 171 77 Stockholm, Sweden; (A.V.G.); (S.E.); (A.B.)
| | - Sandra Ekström
- Institute of Environmental Medicine, Karolinska Institute, 171 77 Stockholm, Sweden; (A.V.G.); (S.E.); (A.B.)
- Centre for Occupational and Environmental Medicine, Region Stockholm, 113 65 Stockholm, Sweden
| | - Anna Bergström
- Institute of Environmental Medicine, Karolinska Institute, 171 77 Stockholm, Sweden; (A.V.G.); (S.E.); (A.B.)
- Centre for Occupational and Environmental Medicine, Region Stockholm, 113 65 Stockholm, Sweden
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Berthon BS, McLoughlin RF, Jensen ME, Hosseini B, Williams EJ, Baines KJ, Taylor SL, Rogers GB, Ivey KL, Morten M, Da Silva Sena CR, Collison AM, Starkey MR, Mattes J, Wark PAB, Wood LG. The effects of increasing fruit and vegetable intake in children with asthma: A randomized controlled trial. Clin Exp Allergy 2021; 51:1144-1156. [PMID: 34197676 DOI: 10.1111/cea.13979] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Accepted: 06/25/2021] [Indexed: 12/13/2022]
Abstract
BACKGROUND A high fruit and vegetable (F&V) diet reduces asthma exacerbations in adults; this has not been examined in children to date. OBJECTIVE To investigate the effect of a 6-month, high F&V diet on the time to first asthma exacerbation in children with asthma, in a parallel-group, randomized, controlled trial. METHODS Children (aged 3-11 years) with asthma, history of exacerbations and usual low F&V intake (≤3 serves/day) were randomized to the intervention (high F&V diet) or control group (usual diet) for 6 months. The primary outcome was time to first exacerbation requiring medical intervention. Secondary outcomes included exacerbation rate, lung function, plasma TNF-α, CRP, and IL-6, faecal microbiota and peripheral blood mononuclear cell (PBMC) histone deacetylase (HDAC) activity and G-protein coupled receptor (GPR) 41/43 and HDAC (1-11) expression. RESULTS 67 children were randomized between September 2015 and July 2018. F&V intake (difference in change (∆): 3.5 serves/day, 95% CI: [2.6, 4.4] p < 0.001) and plasma total carotenoids (∆: 0.44 µg/ml [0.19, 0.70] p = 0.001) increased after 6 months (intervention vs control). Time to first exacerbation (HR: 0.81, 95% CI: [0.38, 1.69], p = 0.569) and exacerbation rate (IRR: 0.84, [0.47, 1.49], p = 0.553) were similar between groups. In per-protocol analysis, airway reactance z-scores increased (X5 ∆: 0.76 [0.04, 1.48] p = 0.038, X20 ∆: 0.93 [0.23, 1.64] p = 0.009) and changes in faecal microbiota were observed, both in the intervention versus control group, though there was no difference between groups in systemic inflammation or molecular mechanisms. In the control group, CRP and HDAC enzyme activity increased, while GPR41 expression decreased. No adverse events attributable to the interventions were observed. CONCLUSION & CLINICAL RELEVANCE A high F&V diet did not affect asthma exacerbations over the 6-month intervention, though warrants further investigation as a strategy for improving lung function and protecting against systemic inflammation in children with asthma.
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Affiliation(s)
- Bronwyn S Berthon
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute, University of Newcastle, Newcastle, NSW, Australia
| | - Rebecca F McLoughlin
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute, University of Newcastle, Newcastle, NSW, Australia
| | - Megan E Jensen
- Priority Research Centre GrowUpwell, Hunter Medical Research Institute, University of Newcastle, Newcastle, NSW, Australia
| | - Banafshe Hosseini
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute, University of Newcastle, Newcastle, NSW, Australia
| | - Evan J Williams
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute, University of Newcastle, Newcastle, NSW, Australia
| | - Katherine J Baines
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute, University of Newcastle, Newcastle, NSW, Australia
| | - Steven L Taylor
- Microbiome & Host Health, South Australian Health and Medical Research Institute, Adelaide, SA, Australia.,College of Medicine and Public Health, Flinders University, Adelaide, SA, Australia
| | - Geraint B Rogers
- Microbiome & Host Health, South Australian Health and Medical Research Institute, Adelaide, SA, Australia.,College of Medicine and Public Health, Flinders University, Adelaide, SA, Australia
| | - Kerry L Ivey
- Microbiome & Host Health, South Australian Health and Medical Research Institute, Adelaide, SA, Australia.,Department of Nutrition, Harvard T. H. Chan School of Public Health, Boston, MA, USA
| | - Matthew Morten
- Priority Research Centre GrowUpwell, Hunter Medical Research Institute, University of Newcastle, Newcastle, NSW, Australia
| | - Carla R Da Silva Sena
- Priority Research Centre GrowUpwell, Hunter Medical Research Institute, University of Newcastle, Newcastle, NSW, Australia
| | - Adam M Collison
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute, University of Newcastle, Newcastle, NSW, Australia.,Priority Research Centre GrowUpwell, Hunter Medical Research Institute, University of Newcastle, Newcastle, NSW, Australia
| | - Malcolm R Starkey
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute, University of Newcastle, Newcastle, NSW, Australia.,Priority Research Centre GrowUpwell, Hunter Medical Research Institute, University of Newcastle, Newcastle, NSW, Australia.,Department of Immunology and Pathology, Central Clinical School, Monash University, Melbourne, VIC, Australia
| | - Joerg Mattes
- Priority Research Centre GrowUpwell, Hunter Medical Research Institute, University of Newcastle, Newcastle, NSW, Australia.,Department of Respiratory and Sleep Medicine, John Hunter Hospital, Newcastle, NSW, Australia
| | - Peter A B Wark
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute, University of Newcastle, Newcastle, NSW, Australia.,Department of Respiratory and Sleep Medicine, John Hunter Hospital, Newcastle, NSW, Australia
| | - Lisa G Wood
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute, University of Newcastle, Newcastle, NSW, Australia.,Priority Research Centre GrowUpwell, Hunter Medical Research Institute, University of Newcastle, Newcastle, NSW, Australia
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Jiang T, Li P, Zhao J, Dai L, Sun D, Liu M, An L, Jia L, Jing X, Wang H, Wu S, Wang Y, Cheng Z. Long-chain polyunsaturated fatty acids improve airway pathological features and gut microbial imbalances in BALB/c mice with ovalbumin-induced asthma. J Funct Foods 2021. [DOI: 10.1016/j.jff.2021.104465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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Di Costanzo M, De Paulis N, Biasucci G. Butyrate: A Link between Early Life Nutrition and Gut Microbiome in the Development of Food Allergy. Life (Basel) 2021; 11:life11050384. [PMID: 33922797 PMCID: PMC8146414 DOI: 10.3390/life11050384] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 04/14/2021] [Accepted: 04/22/2021] [Indexed: 12/11/2022] Open
Abstract
Increased prevalence of food allergies in the last thirty years has been attributed to lifestyle changes in Westernized countries. Among the environmental factors, nutritional factors and their interaction with the gut microbiome in early life are thought to have an important role in the observed epidemiological change. The gut microbiome synthesizes bacterial metabolites, which represent a link among gut microbiome, nutrition, and immune system. The main metabolites produced by gut microbiome are short-chain fatty acids (SCFAs). SCFAs have multiple beneficial effects on human health including protective effects in autoimmune and inflammatory diseases. Among SCFAs, butyrate is essential for maintaining gut immune homeostasis and exerts a pivotal role in immune tolerance with strong anti-inflammatory effects in allergic diseases. Recent findings suggest that butyrate takes part in the development of immunological tolerance to food, especially in the first 1000 days of life. Herein, we provide a critical review of the scientific literature on the role of butyrate for prevention and treatment of food allergies with focus on the complex interplay among early life nutrition, gut microbiome, and immune system.
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Affiliation(s)
- Margherita Di Costanzo
- Pediatrics and Neonatology Unit, Department of Maternal and Child Health, Guglielmo da Saliceto Hospital, 29121 Piacenza, Italy; (N.D.P.); (G.B.)
- Department of Translational Medical Science—Pediatric Section, University “Federico II”, 80131 Naples, Italy
- Correspondence:
| | - Nicoletta De Paulis
- Pediatrics and Neonatology Unit, Department of Maternal and Child Health, Guglielmo da Saliceto Hospital, 29121 Piacenza, Italy; (N.D.P.); (G.B.)
| | - Giacomo Biasucci
- Pediatrics and Neonatology Unit, Department of Maternal and Child Health, Guglielmo da Saliceto Hospital, 29121 Piacenza, Italy; (N.D.P.); (G.B.)
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Role of Short Chain Fatty Acids and Apolipoproteins in the Regulation of Eosinophilia-Associated Diseases. Int J Mol Sci 2021; 22:ijms22094377. [PMID: 33922158 PMCID: PMC8122716 DOI: 10.3390/ijms22094377] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 04/17/2021] [Accepted: 04/19/2021] [Indexed: 02/06/2023] Open
Abstract
Eosinophils are key components of our host defense and potent effectors in allergic and inflammatory diseases. Once recruited to the inflammatory site, eosinophils release their cytotoxic granule proteins as well as cytokines and lipid mediators, contributing to parasite clearance but also to exacerbation of inflammation and tissue damage. However, eosinophils have recently been shown to play an important homeostatic role in different tissues under steady state. Despite the tremendous progress in the treatment of eosinophilic disorders with the implementation of biologics, there is an unmet need for novel therapies that specifically target the cytotoxic effector functions of eosinophils without completely depleting this multifunctional immune cell type. Recent studies have uncovered several endogenous molecules that decrease eosinophil migration and activation. These include short chain fatty acids (SCFAs) such as butyrate, which are produced in large quantities in the gastrointestinal tract by commensal bacteria and enter the systemic circulation. In addition, high-density lipoprotein-associated anti-inflammatory apolipoproteins have recently been shown to attenuate eosinophil migration and activation. Here, we focus on the anti-pathogenic properties of SCFAs and apolipoproteins on eosinophil effector function and provide insights into the potential use of SCFAs and apolipoproteins (and their mimetics) as effective agents to combat eosinophilic inflammation.
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Alwarith J, Kahleova H, Crosby L, Brooks A, Brandon L, Levin SM, Barnard ND. The role of nutrition in asthma prevention and treatment. Nutr Rev 2021; 78:928-938. [PMID: 32167552 PMCID: PMC7550896 DOI: 10.1093/nutrit/nuaa005] [Citation(s) in RCA: 103] [Impact Index Per Article: 34.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Asthma is a chronic respiratory condition characterized by airway inflammation and hyperreactivity. Prevalence has continued to rise in recent decades as Western dietary patterns have become more pervasive. Evidence suggests that diets emphasizing the consumption of plant-based foods might protect against asthma development and improve asthma symptoms through their effects on systemic inflammation, oxidation, and microbial composition. Additionally, increased fruit and vegetable intake, reduced animal product consumption, and weight management might mediate cytokine release, free radical damage, and immune responses involved in the development and course of asthma. The specific aim of this review paper is to examine the current literature on the associations between dietary factors and asthma risk and control in children and adults. Clinical trials examining the mechanism(s) by which dietary factors influence asthma outcomes are necessary to identify the potential use of nutritional therapy in the prevention and management of asthma.
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Affiliation(s)
- Jihad Alwarith
- Physicians Committee for Responsible Medicine, Washington, DC, USA
| | - Hana Kahleova
- Physicians Committee for Responsible Medicine, Washington, DC, USA
| | - Lee Crosby
- Physicians Committee for Responsible Medicine, Washington, DC, USA
| | - Alexa Brooks
- Physicians Committee for Responsible Medicine, Washington, DC, USA
| | | | - Susan M Levin
- Physicians Committee for Responsible Medicine, Washington, DC, USA
| | - Neal D Barnard
- George Washington University School of Medicine and Health Sciences, Washington, DC, USA
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41
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[Diet and asthma: Better eating for better breathing?]. Rev Mal Respir 2021; 38:278-288. [PMID: 33676796 DOI: 10.1016/j.rmr.2021.02.064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Accepted: 10/13/2020] [Indexed: 11/22/2022]
Abstract
Inhaled therapies are the cornerstone of asthma treatment. However, according to national and international guidelines, non-pharmacological interventions should not be neglected in asthma. It has been demonstrated that a healthy diet is beneficial to general health. Recently, the effect of diet on asthma has been highlighted in many studies. Two diets have been particularly studied: the Mediterranean diet (high in fruits and vegetables and low in fat) and the Western diet (high in saturated fat and low in fruits and vegetables). A beneficial effect of the Mediterranean diet and deleterious effect of the Western diet on the development or control of asthma has been shown in some studies even after adjustment for overweight. Study findings have not been unanimous, probably related to the complexity of conducting studies on a diet that may change from day to day for any individual subject. In addition, the effect of physical exercise, which is known to be beneficial in asthma, is rarely taken into account in these studies. However, studies on diet are becoming more complex with the use of specific dietary indices, which should bring interesting data in the future.
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McLoughlin RF, Berthon BS, Wood LG. Weight loss in obese children with asthma - is it important? Paediatr Respir Rev 2021; 37:10-14. [PMID: 32303450 DOI: 10.1016/j.prrv.2020.02.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Accepted: 02/28/2020] [Indexed: 12/12/2022]
Abstract
Obesity is a significant public health problem worldwide, and it has been identified as an independent risk factor for asthma in both adults and children. Not only does obesity increase asthma risk, but it is also associated with decreased asthma-related quality of life, worsened symptoms and asthma control, increased frequency and severity of asthma exacerbations and reduced response to asthma medications. In this review we examine the epidemiology and implications of obesity in both children and adults with asthma, and how the obesogenic "western" diet contributes to asthma prevalence and progression. Finally, we summarise the current evidence on the impact of weight loss on asthma outcomes in both adults and children, highlighting the need for further research to be conducted in the paediatric population.
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Affiliation(s)
- Rebecca F McLoughlin
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute, University of Newcastle, NSW, Australia.
| | - Bronwyn S Berthon
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute, University of Newcastle, NSW, Australia.
| | - Lisa G Wood
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute, University of Newcastle, NSW, Australia.
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Tiwari D, Gupta P. Nuclear Receptors in Asthma: Empowering Classical Molecules Against a Contemporary Ailment. Front Immunol 2021; 11:594433. [PMID: 33574813 PMCID: PMC7870687 DOI: 10.3389/fimmu.2020.594433] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Accepted: 12/09/2020] [Indexed: 02/06/2023] Open
Abstract
The escalation in living standards and adoption of 'Western lifestyle' has an allied effect on the increased allergy and asthma burden in both developed and developing countries. Current scientific reports bespeak an association between allergic diseases and metabolic dysfunction; hinting toward the critical requirement of organized lifestyle and dietary habits. The ubiquitous nuclear receptors (NRs) translate metabolic stimuli into gene regulatory signals, integrating diet inflences to overall developmental and physiological processes. As a consequence of such promising attributes, nuclear receptors have historically been at the cutting edge of pharmacy world. This review discusses the recent findings that feature the cardinal importance of nuclear receptors and how they can be instrumental in modulating current asthma pharmacology. Further, it highlights a possible future employment of therapy involving dietary supplements and synthetic ligands that would engage NRs and aid in eliminating both asthma and linked comorbidities. Therefore, uncovering new and evolving roles through analysis of genomic changes would represent a feasible approach in both prevention and alleviation of asthma.
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Affiliation(s)
| | - Pawan Gupta
- Department of Molecular Biology, Council of Scientific and Industrial Research, Institute of Microbial Technology, Chandigarh, India
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van Brakel L, Mensink RP, Wesseling G, Plat J. Nutritional Interventions to Improve Asthma-Related Outcomes through Immunomodulation: A Systematic Review. Nutrients 2020; 12:nu12123839. [PMID: 33339167 PMCID: PMC7765612 DOI: 10.3390/nu12123839] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 12/09/2020] [Accepted: 12/11/2020] [Indexed: 12/20/2022] Open
Abstract
Asthma is a chronic inflammatory disease of the airways, characterized by T-helper (Th) 2 inflammation. Current lifestyle recommendations for asthma patients are to consume a diet high in fruits and vegetables and to maintain a healthy weight. This raises the question of whether other nutritional interventions may also improve asthma-related outcomes and whether these changes occur via immunomodulation. Therefore, we systematically reviewed studies that reported both asthma-related outcomes as well as immunological parameters and searched for relations between these two domains. A systematic search identified 808 studies, of which 28 studies met the inclusion criteria. These studies were divided over six nutritional clusters: herbs, herbal mixtures and extracts (N = 6); supplements (N = 4); weight loss (N = 3); vitamin D3 (N = 5); omega-3 long-chain polyunsaturated fatty acids (LCPUFAs) (N = 5); and whole-food approaches (N = 5). Fifteen studies reported improvements in either asthma-related outcomes or immunological parameters, of which eight studies reported simultaneous improvements in both domains. Two studies reported worsening in either asthma-related outcomes or immunological parameters, of which one study reported a worsening in both domains. Promising interventions used herbs, herbal mixtures or extracts, and omega-3 LCPUFAs, although limited interventions resulted in clinically relevant results. Future studies should focus on further optimizing the beneficial effects of nutritional interventions in asthma patients, e.g., by considering the phenotypes and endotypes of asthma.
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Affiliation(s)
- Lieve van Brakel
- Department of Nutrition and Movement Sciences, NUTRIM (School of Translational Research in Metabolism), Maastricht University Medical Center, 6200 MD Maastricht, The Netherlands
| | - Ronald P Mensink
- Department of Nutrition and Movement Sciences, NUTRIM (School of Translational Research in Metabolism), Maastricht University Medical Center, 6200 MD Maastricht, The Netherlands
| | - Geertjan Wesseling
- Department of Respiratory Medicine, Maastricht University Medical Center, 6200 MD Maastricht, The Netherlands
| | - Jogchum Plat
- Department of Nutrition and Movement Sciences, NUTRIM (School of Translational Research in Metabolism), Maastricht University Medical Center, 6200 MD Maastricht, The Netherlands
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Margină D, Ungurianu A, Purdel C, Tsoukalas D, Sarandi E, Thanasoula M, Tekos F, Mesnage R, Kouretas D, Tsatsakis A. Chronic Inflammation in the Context of Everyday Life: Dietary Changes as Mitigating Factors. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:E4135. [PMID: 32531935 PMCID: PMC7312944 DOI: 10.3390/ijerph17114135] [Citation(s) in RCA: 55] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/09/2020] [Revised: 06/03/2020] [Accepted: 06/05/2020] [Indexed: 02/07/2023]
Abstract
The lifestyle adopted by most people in Western societies has an important impact on the propensity to metabolic disorders (e.g., diabetes, cancer, cardiovascular disease, neurodegenerative diseases). This is often accompanied by chronic low-grade inflammation, driven by the activation of various molecular pathways such as STAT3 (signal transducer and activator of transcription 3), IKK (IκB kinase), MMP9 (matrix metallopeptidase 9), MAPK (mitogen-activated protein kinases), COX2 (cyclooxigenase 2), and NF-Kβ (nuclear factor kappa-light-chain-enhancer of activated B cells). Multiple intervention studies have demonstrated that lifestyle changes can lead to reduced inflammation and improved health. This can be linked to the concept of real-life risk simulation, since humans are continuously exposed to dietary factors in small doses and complex combinations (e.g., polyphenols, fibers, polyunsaturated fatty acids, etc.). Inflammation biomarkers improve in patients who consume a certain amount of fiber per day; some even losing weight. Fasting in combination with calorie restriction modulates molecular mechanisms such as m-TOR, FOXO, NRF2, AMPK, and sirtuins, ultimately leads to significantly reduced inflammatory marker levels, as well as improved metabolic markers. Moving toward healthier dietary habits at the individual level and in publicly-funded institutions, such as schools or hospitals, could help improving public health, reducing healthcare costs and improving community resilience to epidemics (such as COVID-19), which predominantly affects individuals with metabolic diseases.
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Affiliation(s)
- Denisa Margină
- Department of Biochemistry, Faculty of Pharmacy, "Carol Davila" University of Medicine and Pharmacy, Traian Vuia 6, 020956 Bucharest, Romania
| | - Anca Ungurianu
- Department of Biochemistry, Faculty of Pharmacy, "Carol Davila" University of Medicine and Pharmacy, Traian Vuia 6, 020956 Bucharest, Romania
| | - Carmen Purdel
- Department of Toxicology, Faculty of Pharmacy, "Carol Davila" University of Medicine and Pharmacy, Traian Vuia 6, 020956 Bucharest, Romania
| | - Dimitris Tsoukalas
- European Institute of Nutritional Medicine EINuM, 00198 Rome , Italy
- Metabolomic Medicine Clinic, Health Clinics for Autoimmune and Chronic Diseases, 10674 Athens, Greece
| | - Evangelia Sarandi
- Metabolomic Medicine Clinic, Health Clinics for Autoimmune and Chronic Diseases, 10674 Athens, Greece
- Laboratory of Toxicology and Forensic Sciences, Medical School, University of Crete, 71003 Heraklion, Greece
| | - Maria Thanasoula
- Metabolomic Medicine Clinic, Health Clinics for Autoimmune and Chronic Diseases, 10674 Athens, Greece
| | - Fotios Tekos
- Department of Biochemistry-Biotechnology, School of Health Sciences, 41500 Larisa, Greece
| | - Robin Mesnage
- Gene Expression and Therapy Group, King's College London, Faculty of Life Sciences and Medicine, Department of Medical and Molecular Genetics, 8th Floor, Tower Wing, Guy's Hospital, Great Maze Pond, London SE1 9RT, UK
| | - Demetrios Kouretas
- Department of Biochemistry-Biotechnology, School of Health Sciences, 41500 Larisa, Greece
| | - Aristidis Tsatsakis
- Department Forensic Sciences and Toxicology, University of Crete, Faculty of Medicine, 71003 Heraklion, Greece
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Lipid mediators and asthma: Scope of therapeutics. Biochem Pharmacol 2020; 179:113925. [PMID: 32217103 DOI: 10.1016/j.bcp.2020.113925] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Accepted: 03/19/2020] [Indexed: 02/06/2023]
Abstract
Lipids and their mediators are known to play a pro-inflammatory role in several human diseases including asthma. The influence of leukotrienes and prostaglandins through arachidonate metabolism in asthma pathophysiology is well established and hence, prompted the way for therapeutic strategies targeting lipid metabolites. In addition, various types of fatty acids have been reported to play a diverse role in asthma. For instance, CD4+ T-lymphocytes differentiation towards T-effector (Teff) or T-regulatory (Tregs) cells seems to be controlled reciprocally by fatty acid metabolic pathways. Further, the dysregulated lipid status in obesity complicates the asthma manifestations suggesting the role of lipid metabolites particularly ω-6 fatty acids in the process. On the other hand, clinical and pre-clinical studies suggests the role of short chain fatty acids in curbing asthma through upregulation of T-regulatory cells or clearance of inflammatory cells through promoting apoptosis. Accordingly, the present review compiles various studies for comprehensive analysis of different types of lipid based metabolites in asthma manifestation. Finally, we have proposed certain strategies which may enhance the usefulness of lipid mediators for balanced immune response during asthma.
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Tarazona-Meza CE, Hanson C, Pollard SL, Romero Rivero KM, Galvez Davila RM, Talegawkar S, Rojas C, Rice JL, Checkley W, Hansel NN. Dietary patterns and asthma among Peruvian children and adolescents. BMC Pulm Med 2020; 20:63. [PMID: 32171269 PMCID: PMC7071620 DOI: 10.1186/s12890-020-1087-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Accepted: 02/17/2020] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND Asthma is one of the conditions that contributes to the global burden of respiratory diseases and has been previously associated with diet intake. The goal of this study was to determine the relationship between diet, assessed by a developed score, and asthma in Peruvian children. METHODS This study was a cross sectional analysis nested within an unmatched case-control study of children in two peri-urban communities of Lima, Peru. We evaluated 767 children and adolescents (573 with asthma, 194 controls) between 9 and 19 years. Diet was assessed using a food frequency questionnaire (FFQ), with food groups classified as "healthy" or "unhealthy". Asthma control, Lung function and atopy were assessed by Asthma Control Test, Spirometry and InmunoCAP 250 test, respectively. RESULTS Mean age of participants was 13.8 years (SD 2.6). Mean diet score was 5 (SD 1.23; range 2-8). Healthy Diet Score was associated with asthma status [OR 0.83, 95% CI (0.72, 0.95), p = 0.009] in adjusted analysis. Thus, participants with higher HDS, had lower odds of asthma. In sensitivity analyses, when adjusting for atopy, results did not change significantly. [OR 0.85, 95% CI (0.72, 0.99); p = 0.04]. No association between the HDS and asthma control, FEV1, nor FeNO were observed. Atopy did not modify the association between diet and asthma outcomes. CONCLUSIONS In our study cohort, better diet quality was associated with lower odds of asthma, but was not associated with asthma control. Diet modification may be a potential intervention to impact the increasing prevalence of this disease.
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Affiliation(s)
- Carla E Tarazona-Meza
- Center for Non-Communicable Diseases Research and Training, Johns Hopkins University, Baltimore, MD, USA.,Biomedical Research Unit, Asociacion Benefica PRISMA, Carlos Gonzales 251, San Miguel, Lima, Peru
| | - Corrine Hanson
- Division of Medical Nutrition Education, University of Nebraska Medical Center, 984035 Nebraska Medical Center, Omaha, NE, 68198-4035, USA
| | - Suzanne L Pollard
- Center for Non-Communicable Diseases Research and Training, Johns Hopkins University, Baltimore, MD, USA.,Division of Pulmonary and Critical Care Medicine, Johns Hopkins University, Johns Hopkins Bayview, 1830 E, Monument, 5th Floor, Baltimore, MD, 21205, USA
| | - Karina M Romero Rivero
- Biomedical Research Unit, Asociacion Benefica PRISMA, Carlos Gonzales 251, San Miguel, Lima, Peru.,Division of Pulmonary and Critical Care Medicine, Johns Hopkins University, Johns Hopkins Bayview, 1830 E, Monument, 5th Floor, Baltimore, MD, 21205, USA
| | - Rocio M Galvez Davila
- Biomedical Research Unit, Asociacion Benefica PRISMA, Carlos Gonzales 251, San Miguel, Lima, Peru
| | - Sameera Talegawkar
- Department of Exercise and Nutrition Sciences, Milken Institute School of Public Health, The George Washington University, 950 New Hampshire Ave, NW. 7th Floor, Washington, DC, 20052, USA
| | - Carlos Rojas
- Monitoring and Evaluation Office, UNICEF Peru, Parque Meliton Porras No. 350, Miraflores, Lima, Peru
| | - Jessica L Rice
- Division of Pediatric Pulmonology, School of Medicine, Johns Hopkins University, Baltimore, MD, USA
| | - William Checkley
- Center for Non-Communicable Diseases Research and Training, Johns Hopkins University, Baltimore, MD, USA.,Division of Pulmonary and Critical Care Medicine, Johns Hopkins University, Johns Hopkins Bayview, 1830 E, Monument, 5th Floor, Baltimore, MD, 21205, USA
| | - Nadia N Hansel
- Division of Pulmonary and Critical Care Medicine, Johns Hopkins University, Johns Hopkins Bayview, 1830 E, Monument, 5th Floor, Baltimore, MD, 21205, USA.
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Grieger JA, Hodge A, Mishra G, Joham AE, Moran LJ. The Association between Dietary Intake, Asthma, and PCOS in Women from the Australian Longitudinal Study on Women's Health. J Clin Med 2020; 9:E233. [PMID: 31952348 PMCID: PMC7019521 DOI: 10.3390/jcm9010233] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Revised: 01/06/2020] [Accepted: 01/12/2020] [Indexed: 01/23/2023] Open
Abstract
Dietary intake potentially modifies the prevalence or severity of asthma. The prevalence of asthma is higher in women with polycystic ovary syndrome (PCOS); it is not known if diet confounds or modifies the association between asthma and PCOS. The aims of this study were: (i) To determine if the association of PCOS and asthma is independent of dietary pattern and (ii) to determine if dietary pattern modifies the association between PCOS and asthma. Women in this study were from the Australian Longitudinal Study on Women's Health (ALSWH) cohort born between 1973 to 1978 and aged 18 to 23 years (n = 7382). Logistic regression was used to assess the association between PCOS and asthma, adjusting for the following: (i) Potential confounders identified a priori and (ii) dietary patterns (z-score) identified by principle component analysis. In the adjusted analysis, women with PCOS were more likely to have asthma than the women without PCOS (OR 1.35 and 95% CI, 1.02 and 1.78). This relationship was not altered by further adjustment for dietary patterns (non-core food, meats and takeaway, or Mediterranean-style pattern). In the interaction analysis, only the women consuming less than the median intake of non-core foods (i.e., lower intake of discretionary or unhealthy foods) and with PCOS were more likely to have asthma (OR 1.91 and 95% CI, 1.29 and 2.82). Dietary intake did not confound the relationship between PCOS and asthma. Other mechanistic pathways are likely responsible for the asthma and PCOS association, and further studies assessing factors such as oral contraceptive use and sex steroid hormones warrant investigation.
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Affiliation(s)
- Jessica A Grieger
- Robinson Research Institute, University of Adelaide, North Adelaide, SA 5005, Australia;
- Adelaide Medical School, University of Adelaide, Adelaide, SA 5005, Australia
| | - Allison Hodge
- Cancer Epidemiology Division, Cancer Council Victoria, Melbourne, VCT 3004, Australia;
- Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, University of Melbourne, Melbourne, VCT 3010, Australia
| | - Gita Mishra
- School of Public Health, Faculty of Medicine, The University of Queensland, Brisbane, QLD 4072, Australia;
| | - Anju E Joham
- Monash Centre for Health Research and Implementation, School of Public Health and Preventive Medicine, Monash University, Clayton, VCT 3168, Australia;
- Diabetes and Vascular Medicine, Monash Health, Clayton, VCT 3168, Australia
| | - Lisa J Moran
- Robinson Research Institute, University of Adelaide, North Adelaide, SA 5005, Australia;
- Monash Centre for Health Research and Implementation, School of Public Health and Preventive Medicine, Monash University, Clayton, VCT 3168, Australia;
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Stockert K. Allergie, Mikrobiom und weitere epigenetische Faktoren. ALLERGIEPRÄVENTION 2020. [PMCID: PMC7123400 DOI: 10.1007/978-3-662-58140-7_4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Althoff M, Holguin F. Contemporary management techniques of asthma in obese patients. Expert Rev Respir Med 2019; 14:249-257. [PMID: 31852311 DOI: 10.1080/17476348.2020.1706486] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Introduction: Obesity-associated asthma represents a heterogeneous group of clinical phenotypes, including an adult-onset phenotype. These patients often have difficult to control symptoms and often are less likely to respond to conventional asthma therapies.Areas covered: This review covers the effects of lifestyle interventions, including diet and weight loss, effect asthma outcomes and how obesity-associated asthma responds to conventional approaches to asthma management.Expert opinion: Management of obesity-associated asthma should include lifestyle modifications aimed at weight reduction, management of other co-morbidities, and limiting systemic steroids. As many of these patients have non-Th2 asthma, long-acting muscarinic antagonists and macrolides may be potentially helpful. Medications to treat metabolic syndrome.
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Affiliation(s)
- Meghan Althoff
- Pulmonary Sciences and Critical Care, University of Colorado, Denver, CO, USA
| | - Fernando Holguin
- Pulmonary Sciences and Critical Care, University of Colorado, Denver, CO, USA
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