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Zinner D, Paciência FMD, Roos C. Host-Parasite Coevolution in Primates. Life (Basel) 2023; 13:life13030823. [PMID: 36983978 PMCID: PMC10058613 DOI: 10.3390/life13030823] [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: 01/17/2023] [Revised: 01/26/2023] [Accepted: 03/15/2023] [Indexed: 03/30/2023] Open
Abstract
Organisms adapt to their environment through evolutionary processes. Environments consist of abiotic factors, but also of other organisms. In many cases, two or more species interact over generations and adapt in a reciprocal way to evolutionary changes in the respective other species. Such coevolutionary processes are found in mutualistic and antagonistic systems, such as predator-prey and host-parasite (including pathogens) relationships. Coevolution often results in an "arms race" between pathogens and hosts and can significantly affect the virulence of pathogens and thus the severity of infectious diseases, a process that we are currently witnessing with SARS-CoV-2. Furthermore, it can lead to co-speciation, resulting in congruent phylogenies of, e.g., the host and parasite. Monkeys and other primates are no exception. They are hosts to a large number of pathogens that have shaped not only the primate immune system but also various ecological and behavioral adaptions. These pathogens can cause severe diseases and most likely also infect multiple primate species, including humans. Here, we briefly review general aspects of the coevolutionary process in its strict sense and highlight the value of cophylogenetic analyses as an indicator for coevolution.
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Affiliation(s)
- Dietmar Zinner
- Cognitive Ethology Laboratory, German Primate Center, Leibniz Institute for Primate Research, 37077 Göttingen, Germany
- Department of Primate Cognition, Georg-August-University of Göttingen, 37077 Göttingen, Germany
- Leibniz Science Campus Primate Cognition, 37077 Göttingen, Germany
| | | | - Christian Roos
- Gene Bank of Primates and Primate Genetics Laboratory, German Primate Center, Leibniz Institute for Primate Research, 37077 Göttingen, Germany
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Parker W, Patel E, Jirků-Pomajbíková K, Laman JD. COVID-19 morbidity in lower versus higher income populations underscores the need to restore lost biodiversity of eukaryotic symbionts. iScience 2023; 26:106167. [PMID: 36785786 PMCID: PMC9908430 DOI: 10.1016/j.isci.2023.106167] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023] Open
Abstract
The avoidance of infectious disease by widespread use of 'systems hygiene', defined by hygiene-enhancing technology such as sewage systems, water treatment facilities, and secure food storage containers, has led to a dramatic decrease in symbiotic helminths and protists in high-income human populations. Over a half-century of research has revealed that this 'biota alteration' leads to altered immune function and a propensity for chronic inflammatory diseases, including allergic, autoimmune and neuropsychiatric disorders. A recent Ethiopian study (EClinicalMedicine 39: 101054), validating predictions made by several laboratories, found that symbiotic helminths and protists were associated with a reduced risk of severe COVID-19 (adjusted odds ratio = 0.35; p<0.0001). Thus, it is now apparent that 'biome reconstitution', defined as the artificial re-introduction of benign, symbiotic helminths or protists into the ecosystem of the human body, is important not only for alleviation of chronic immune disease, but likely also for pandemic preparedness.
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Affiliation(s)
| | | | - Kateřina Jirků-Pomajbíková
- Institute of Parasitology, Biology Centre, Czech Academy of Sciences, 370 05 České Budějovice, Czech Republic
- Faculty of Science, University of South Bohemia, 370 05 České Budějovice, Czech Republic
| | - Jon D. Laman
- Department of Pathology and Medical Biology, University Groningen, University Medical Center Groningen, Groningen, the Netherlands
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Zhang X, Zhang M, Sui H, Li C, Huang Z, Liu B, Song X, Liao S, Yu M, Luan T, Zuberbier T, Wang L, Zhao Z, Wu J. Prevalence and risk factors of allergic rhinitis among Chinese adults: A nationwide representative cross-sectional study. World Allergy Organ J 2023; 16:100744. [PMID: 37008533 PMCID: PMC10050653 DOI: 10.1016/j.waojou.2023.100744] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Revised: 12/02/2022] [Accepted: 12/19/2022] [Indexed: 03/28/2023] Open
Abstract
Background The prevalence of allergic rhinitis (AR) has been increasing steadily worldwide, especially in countries with increasing industrialization such as China. However, available evidence regarding AR prevalence among Chinese adults is scarce and limited to regional data collected in earlier years. We therefore aimed to provide a more recent and robust estimate of AR prevalence using a nationwide representative cross-sectional study in China. Methods Data of 184 326 participants aged 18 years or older were obtained from the China Chronic Disease and Risk Factor Surveillance conducted in 2018-2019. AR was determined by self-reported sneezing, nasal itching, obstruction, or rhinorrhea symptoms for at least 1 h in the absence of a cold or flu within the last 12 months. Multivariable logistic model was used to examine the risk factors of AR, and a possible non-linear relationship was further tested by restricted cubic spline. Potential additive interactions of risk factors with sex, residence, and geographic region were assessed by relative excess risk due to interaction (RERI). Results The weighted prevalence of AR was 8.1% (95% confidence interval [CI], 7.4%-8.7%), of whom 23.7% (95% CI, 21.3%-26.0%) were aware of their diagnosis. Increased odds of AR were associated with younger age, men, living in urban area or north region, more education, smoking, underweight, and higher income. Despite the nonsignificant linear trend, the spline regression demonstrated a non-linear association between AR and sleep duration, with higher odds at both ends. Additionally, the observed associations were generally stronger among men and people living in urban area and north region, with significant RERI ranging from 0.07 (95% CI, 0.00-0.14) to 0.40 (95% CI, 0.12-0.67). Conclusions AR is prevalent in China and the associated factors and interactions are helpful to design targeted preventive strategies towards certain subpopulations. The low awareness of AR calls for a national effort on AR screening.
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Saadh MJ, Pal RS, Arias-Gonzáles JL, Orosco Gavilán JC, JC D, Mohany M, Al-Rejaie SS, Bahrami A, Kadham MJ, Amin AH, Georgia H. A Mendelian Randomization Analysis Investigates Causal Associations between Inflammatory Bowel Diseases and Variable Risk Factors. Nutrients 2023; 15:1202. [PMID: 36904201 PMCID: PMC10005338 DOI: 10.3390/nu15051202] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2023] [Revised: 02/25/2023] [Accepted: 02/26/2023] [Indexed: 03/06/2023] Open
Abstract
The question of whether variable risk factors and various nutrients are causally related to inflammatory bowel diseases (IBDs) has remained unanswered so far. Thus, this study investigated whether genetically predicted risk factors and nutrients play a function in the occurrence of inflammatory bowel diseases, including ulcerative colitis (UC), non-infective colitis (NIC), and Crohn's disease (CD), using Mendelian randomization (MR) analysis. Utilizing the data of genome-wide association studies (GWASs) with 37 exposure factors, we ran Mendelian randomization analyses based on up to 458,109 participants. Univariable and multivariable MR analyses were conducted to determine causal risk factors for IBD diseases. Genetic predisposition to smoking and appendectomy as well as vegetable and fruit intake, breastfeeding, n-3 PUFAs, n-6 PUFAs, vitamin D, total cholesterol, whole-body fat mass, and physical activity were related to the risk of UC (p < 0.05). The effect of lifestyle behaviors on UC was attenuated after correcting for appendectomy. Genetically driven smoking, alcohol consumption, appendectomy, tonsillectomy, blood calcium, tea intake, autoimmune diseases, type 2 diabetes, cesarean delivery, vitamin D deficiency, and antibiotic exposure increased the risk of CD (p < 0.05), while vegetable and fruit intake, breastfeeding, physical activity, blood zinc, and n-3 PUFAs decreased the risk of CD (p < 0.05). Appendectomy, antibiotics, physical activity, blood zinc, n-3 PUFAs, and vegetable fruit intake remained significant predictors in multivariable MR (p < 0.05). Besides smoking, breastfeeding, alcoholic drinks, vegetable and fruit intake, vitamin D, appendectomy, and n-3 PUFAs were associated with NIC (p < 0.05). Smoking, alcoholic drinks, vegetable and fruit intake, vitamin D, appendectomy, and n-3 PUFAs remained significant predictors in multivariable MR (p < 0.05). Our results provide new and comprehensive evidence demonstrating that there are approving causal effects of various risk factors on IBDs. These findings also supply some suggestions for the treatment and prevention of these diseases.
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Affiliation(s)
- Mohamed J. Saadh
- Faculty of Pharmacy, Middle East University, Amman 11831, Jordan;
- Applied Science Research Center, Applied Science Private University, Amman 11152, Jordan
| | - Rashmi Saxena Pal
- School of Pharmaceutical Sciences, Lovely Professional University, Phagwara 144001, Punjab, India;
| | - José Luis Arias-Gonzáles
- Department of Social Sciences, Faculty of Social Studies, Pontifical University of Peru, San Miguel 15088, Peru;
| | | | - Darshan JC
- Department of Pharmacy Practice, Yenepoya Pharmacy College & Research Centre, Yenepoya Deemed to Be University, Mangalore 575018, Karnataka, India;
| | - Mohamed Mohany
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, P.O. Box 55760, Riyadh 1145, Saudi Arabia; (M.M.); (S.S.A.-R.)
| | - Salim S. Al-Rejaie
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, P.O. Box 55760, Riyadh 1145, Saudi Arabia; (M.M.); (S.S.A.-R.)
| | - Abolfazl Bahrami
- Biomedical Center for Systems Biology Science Munich, Ludwig Maximilians University, 80333 Munich, Germany
| | | | - Ali H. Amin
- Zoology Department, Faculty of Science, Mansoura University, Mansoura 35516, Egypt;
| | - Hrosti Georgia
- Institute of Immunology, Hannover Medical School, 30625 Hannover, Germany
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Osteoporosis and Celiac Disease: Updates and Hidden Pitfalls. Nutrients 2023; 15:nu15051089. [PMID: 36904090 PMCID: PMC10005679 DOI: 10.3390/nu15051089] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 02/15/2023] [Accepted: 02/20/2023] [Indexed: 02/24/2023] Open
Abstract
Celiac disease (CD) is an autoimmune disorder caused by gluten ingestion in genetically predisposed individuals. In addition to the typical gastrointestinal symptoms (e.g., diarrhea, bloating, and chronic abdominal pain), CD may also present with a broad spectrum of manifestations, including low bone mineral density (BMD) and osteoporosis. The etiopathology of bone lesions in CD is multifactorial and other conditions, rather than mineral and vitamin D malabsorption, may affect skeletal health, especially those related to the endocrine system. Here, we describe CD-induced osteoporosis in an attempt to enlighten new and less-known aspects, such as the influence of the intestinal microbiome and sex-related differences on bone health. This review describes the role of CD in the development of skeletal alterations to provide physicians with an updated overview on this debated topic and to improve the management of osteoporosis in CD.
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Abstract
Metabolites produced by commensal gut microbes impact host health through their recognition by the immune system and their influence on numerous metabolic pathways. Notably, the gut microbiota can both transform and synthesize lipids as well as break down dietary lipids to generate secondary metabolites with host modulatory properties. Although lipids have largely been consigned to structural roles, particularly in cell membranes, recent research has led to an increased appreciation of their signaling activities, with potential impacts on host health and physiology. This review focuses on studies that highlight the functions of bioactive lipids in mammalian physiology, with a special emphasis on immunity and metabolism.
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Affiliation(s)
- Eric M Brown
- Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA; Center for Computational and Integrative Biology, Department of Molecular Biology, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA.
| | - Jon Clardy
- Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Blavatnik Institute, Boston, MA 02115, USA
| | - Ramnik J Xavier
- Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA; Center for Computational and Integrative Biology, Department of Molecular Biology, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA.
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High glucose promotes regulatory T cell differentiation. PLoS One 2023; 18:e0280916. [PMID: 36730267 PMCID: PMC9894383 DOI: 10.1371/journal.pone.0280916] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Accepted: 01/12/2023] [Indexed: 02/03/2023] Open
Abstract
The consumption of processed foods and sugary sodas in Western diets correlates with an increased incidence of obesity, metabolic syndromes such as type 2 diabetes, cardiovascular diseases, and autoimmune diseases including inflammatory bowel disease and rheumatoid arthritis. All these diseases have an inflammatory component, of which T lymphocytes can play a critical role in driving. Much has been learned regarding the importance of sugar, particularly glucose, in fueling effector versus regulatory T cells that can promote or dampen inflammation, respectively. In particular, glucose and its metabolic breakdown products via glycolysis are essential for effector T cell differentiation and function, while fatty acid-fueled oxidative phosphorylation supports homeostasis and function of regulatory T cells. Nevertheless, a critical knowledge gap, given the prevalence of diabetes in Western societies, is the impact of elevated glucose concentrations on the balance between effector versus regulatory T cells. To begin addressing this, we cultured naïve CD4+ T cells with different concentrations of glucose, and examined their differentiation into effector versus regulatory lineages. Surprisingly, high glucose promoted regulatory T cell differentiation and inhibited Th1 effector differentiation. This skewing towards the regulatory lineage occurred via an indirect mechanism that depends on lactate produced by activated glycolytic T cells. Addition of lactate to the T cell differentiation process promotes the differentiation of Treg cells, and activates Akt/mTOR signaling cascade. Hence, our findings suggest the existence of a novel feedback mechanism in which lactate produced by activated, differentiating T cells skews their lineage commitment towards the regulatory fate.
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Stikker BS, Hendriks RW, Stadhouders R. Decoding the genetic and epigenetic basis of asthma. Allergy 2023; 78:940-956. [PMID: 36727912 DOI: 10.1111/all.15666] [Citation(s) in RCA: 20] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 01/17/2023] [Accepted: 01/30/2023] [Indexed: 02/03/2023]
Abstract
Asthma is a complex and heterogeneous chronic inflammatory disease of the airways. Alongside environmental factors, asthma susceptibility is strongly influenced by genetics. Given its high prevalence and our incomplete understanding of the mechanisms underlying disease susceptibility, asthma is frequently studied in genome-wide association studies (GWAS), which have identified thousands of genetic variants associated with asthma development. Virtually all these genetic variants reside in non-coding genomic regions, which has obscured the functional impact of asthma-associated variants and their translation into disease-relevant mechanisms. Recent advances in genomics technology and epigenetics now offer methods to link genetic variants to gene regulatory elements embedded within non-coding regions, which have started to unravel the molecular mechanisms underlying the complex (epi)genetics of asthma. Here, we provide an integrated overview of (epi)genetic variants associated with asthma, focusing on efforts to link these disease associations to biological insight into asthma pathophysiology using state-of-the-art genomics methodology. Finally, we provide a perspective as to how decoding the genetic and epigenetic basis of asthma has the potential to transform clinical management of asthma and to predict the risk of asthma development.
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Affiliation(s)
- Bernard S Stikker
- Department of Pulmonary Medicine, Erasmus MC, University Medical Center, Rotterdam, The Netherlands
| | - Rudi W Hendriks
- Department of Pulmonary Medicine, Erasmus MC, University Medical Center, Rotterdam, The Netherlands
| | - Ralph Stadhouders
- Department of Pulmonary Medicine, Erasmus MC, University Medical Center, Rotterdam, The Netherlands.,Department of Cell Biology, Erasmus MC, University Medical Center, Rotterdam, The Netherlands
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Wang CM, Yang ST, Yang CC, Chiu HY, Lin HY, Tsai ML, Lin HC, Chang YC. Maternal and neonatal risk factors of asthma in children: Nationwide population based study. JOURNAL OF MICROBIOLOGY, IMMUNOLOGY, AND INFECTION = WEI MIAN YU GAN RAN ZA ZHI 2023; 56:182-191. [PMID: 36411206 DOI: 10.1016/j.jmii.2022.10.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Revised: 09/21/2022] [Accepted: 10/20/2022] [Indexed: 11/09/2022]
Abstract
BACKGROUND Small population group-based cohorts have found that perinatal factors may contribute to the development of asthma in children. We aimed to investigate maternal and neonatal risk factors for the asthma phenotypes using two databases from the Taiwan's Maternal and Child Health Database (TMCHD) and the National Health Insurance Research Database (NHIRD). METHODS Perinatal data was obtained from 2004 to 2008 in the TMCHD and linked the NHIRD to obtain relevant medical information regarding maternal and neonatal risk factors of three asthma phenotypes which were identified as transient early asthma, persistent asthma, and late-onset asthma. A multivariate logistic regression analysis was conducted to adjust for covariates. RESULTS The percentage of non-asthmatic patients was 77.02% and asthmatic (transient early asthma, late onset asthma, and persistent asthma) patients were 8.96%, 11.64%, and 2.42%, respectively. Maternal risk factors-including Cesarean section, maternal asthma, maternal allergic rhinitis (AR), and premature rupture of membranes-and neonatal risk factors, such as male gender, gestational age 29-37 weeks, ventilator use, antibiotics use, AR, and atopic dermatitis, were associated with the development of these three asthma phenotypes. Twins and a gestational age of 28 weeks or less premature were associated with the development of transient early asthma and persistent asthma, but not late onset asthma. Triplets and above were associated with the development of transient early asthma, but not late onset or persistent asthma. CONCLUSION Various asthma phenotypes have different risk factors; therefore, their distinct risk factors should be identified in order to early diagnosis and treatment.
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Affiliation(s)
- Chuang-Ming Wang
- Department of Pediatrics, Ditmanson Medical Foundation Chia-Yi Christian Hospital, Chia-Yi City 60002, Taiwan.
| | - Shun-Ting Yang
- Department of Pediatrics, Ditmanson Medical Foundation Chia-Yi Christian Hospital, Chia-Yi City 60002, Taiwan.
| | - Cheng-Chia Yang
- Department of Healthcare Administration, College of Medical and Health Science, Asia University, Taichung 41354, Taiwan.
| | - Hsiao-Yu Chiu
- Division of Neonatology, China Medical University Children's Hospital, China Medical University, Taichung 40402, Taiwan.
| | - Hsiang-Yu Lin
- Division of Neonatology, China Medical University Children's Hospital, China Medical University, Taichung 40402, Taiwan.
| | - Ming-Luen Tsai
- Division of Neonatology, China Medical University Children's Hospital, China Medical University, Taichung 40402, Taiwan.
| | - Hung-Chih Lin
- Division of Neonatology, China Medical University Children's Hospital, China Medical University, Taichung 40402, Taiwan; School of Chinese Medicine, College of Chinese Medicine, China Medical University, Taichung 40402, Taiwan; Asia University Hospital, Asia University, Taichung 41354, Taiwan.
| | - Yu-Chia Chang
- Department of Healthcare Administration, College of Medical and Health Science, Asia University, Taichung 41354, Taiwan; Department of Long Term Care, College of Health and Nursing, National Quemoy University, Kinmen County 892009, Taiwan
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Du M, Xu S, Qiu B, Hu S, Tjakkes GHE, Li A, Ge S. Serum antibodies to periodontal pathogens are related to allergic symptoms. J Periodontol 2023; 94:204-216. [PMID: 35960608 DOI: 10.1002/jper.22-0346] [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: 06/13/2022] [Revised: 08/02/2022] [Accepted: 08/02/2022] [Indexed: 11/06/2022]
Abstract
BACKGROUND The association between periodontitis and allergic symptoms has been investigated. However, the difference in immune signatures between them remains poorly understood. This cross-sectional study assessed the relationship between serum immunoglobulin G (IgG) antibodies to periodontal pathogens and allergic symptoms in a nationwide population cohort. METHODS Two phases of the Third National Health and Nutrition Examination Survey (NHANES III) were used as discovery dataset (n = 3700) and validation dataset (n = 4453), respectively. Based on the antibodies against 19 periodontal pathogens, we performed an unsupervised hierarchical clustering to categorize the population into three clusters. In the discovery dataset, cluster 1 (n = 2847) had the highest level of IgG antibodies, followed by clusters 2 (n = 588) and 3 (n = 265). Data on allergic symptoms (asthma, hay fever, and wheezing) were obtained using a self-reported questionnaire. Survey-weighted multivariable logistic regression evaluated the association between these clusters and allergic symptoms. RESULTS In the discovery dataset, the participants with lower levels of antibodies to periodontal pathogens exhibited a higher risk of asthma (odds ratio [OR]cluster 3 vs. cluster 1 = 1.820, 95% confidence interval [CI]: 1.153-2.873) and wheezing (ORcluster 3 vs. cluster 1 = 1.550, 95% CI: 1.095-2.194) compared to those with higher periodontal antibodies, but the non-significant association with hay fever. Consistent results were found in the validation dataset. CONCLUSIONS Serum IgG titers to periodontal pathogens were inversely associated with the risk of asthma and wheezing, suggesting the potentially protective role against allergic conditions.
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Affiliation(s)
- Mi Du
- School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration, Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, China
| | - Shulan Xu
- Center of Oral Implantology, Stomatological Hospital, Southern Medical University, Guangzhou, China
| | - Bingjiang Qiu
- Department of Radiology & Guangdong Cardiovascular Institute & Guangdong Provincial Key Laboratory of Artificial Intelligence in Medical Image Analysis and Application, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China.,Data Science Center in Health (DASH) & 3D Lab, University Medical Center Groningen (UMCG), University of Groningen, Groningen, The Netherlands
| | - Shixian Hu
- Institute of Precision Medicine, the First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China.,Department of Gastroenterology and Hepatology, UMCG, University of Groningen, Groningen, The Netherlands
| | - Geerten-Has E Tjakkes
- Department of Periodontology, Center for Dentistry and Oral Hygiene, UMCG, University of Groningen, Groningen, The Netherlands
| | - An Li
- Center of Oral Implantology, Stomatological Hospital, Southern Medical University, Guangzhou, China.,Department of Periodontology, Center for Dentistry and Oral Hygiene, UMCG, University of Groningen, Groningen, The Netherlands
| | - Shaohua Ge
- School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration, Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, China
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Virolainen SJ, VonHandorf A, Viel KCMF, Weirauch MT, Kottyan LC. Gene-environment interactions and their impact on human health. Genes Immun 2023; 24:1-11. [PMID: 36585519 PMCID: PMC9801363 DOI: 10.1038/s41435-022-00192-6] [Citation(s) in RCA: 20] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 12/09/2022] [Accepted: 12/13/2022] [Indexed: 12/31/2022]
Abstract
The molecular processes underlying human health and disease are highly complex. Often, genetic and environmental factors contribute to a given disease or phenotype in a non-additive manner, yielding a gene-environment (G × E) interaction. In this work, we broadly review current knowledge on the impact of gene-environment interactions on human health. We first explain the independent impact of genetic variation and the environment. We next detail well-established G × E interactions that impact human health involving environmental toxicants, pollution, viruses, and sex chromosome composition. We conclude with possibilities and challenges for studying G × E interactions.
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Affiliation(s)
- Samuel J Virolainen
- Division of Human Genetics, Center for Autoimmune Genomics and Etiology, Cincinnati Children's Hospital Medical Center, 3333 Burnet Ave., Cincinnati, OH, 45229, USA
- Immunology Graduate Program, University of Cincinnati College of Medicine, 3230 Eden Ave, Cincinnati, OH, 45229, USA
| | - Andrew VonHandorf
- Division of Human Genetics, Center for Autoimmune Genomics and Etiology, Cincinnati Children's Hospital Medical Center, 3333 Burnet Ave., Cincinnati, OH, 45229, USA
| | - Kenyatta C M F Viel
- Division of Human Genetics, Center for Autoimmune Genomics and Etiology, Cincinnati Children's Hospital Medical Center, 3333 Burnet Ave., Cincinnati, OH, 45229, USA
| | - Matthew T Weirauch
- Division of Human Genetics, Center for Autoimmune Genomics and Etiology, Cincinnati Children's Hospital Medical Center, 3333 Burnet Ave., Cincinnati, OH, 45229, USA.
- Immunology Graduate Program, University of Cincinnati College of Medicine, 3230 Eden Ave, Cincinnati, OH, 45229, USA.
- Divisions of Biomedical Informatics and Developmental Biology, Cincinnati Children's Hospital Medical Center, 3333 Burnet Ave., Cincinnati, OH, 45229, USA.
- Department of Pediatrics, University of Cincinnati College of Medicine, 3230 Eden Ave, Cincinnati, OH, 45229, USA.
| | - Leah C Kottyan
- Division of Human Genetics, Center for Autoimmune Genomics and Etiology, Cincinnati Children's Hospital Medical Center, 3333 Burnet Ave., Cincinnati, OH, 45229, USA.
- Immunology Graduate Program, University of Cincinnati College of Medicine, 3230 Eden Ave, Cincinnati, OH, 45229, USA.
- Department of Pediatrics, University of Cincinnati College of Medicine, 3230 Eden Ave, Cincinnati, OH, 45229, USA.
- Division of Allergy and Immunology, Cincinnati Children's Hospital Medical Center, 3333 Burnet Ave., MLC 15012, Cincinnati, OH, 45229, USA.
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Sadeghpour Heravi F, Hu H. Bifidobacterium: Host-Microbiome Interaction and Mechanism of Action in Preventing Common Gut-Microbiota-Associated Complications in Preterm Infants: A Narrative Review. Nutrients 2023; 15:nu15030709. [PMID: 36771414 PMCID: PMC9919561 DOI: 10.3390/nu15030709] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Revised: 01/23/2023] [Accepted: 01/27/2023] [Indexed: 01/31/2023] Open
Abstract
The development and health of infants are intertwined with the protective and regulatory functions of different microorganisms in the gut known as the gut microbiota. Preterm infants born with an imbalanced gut microbiota are at substantial risk of several diseases including inflammatory intestinal diseases, necrotizing enterocolitis, late-onset sepsis, neurodevelopmental disorders, and allergies which can potentially persist throughout adulthood. In this review, we have evaluated the role of Bifidobacterium as commonly used probiotics in the development of gut microbiota and prevention of common diseases in preterm infants which is not fully understood yet. The application of Bifidobacterium as a therapeutical approach in the re-programming of the gut microbiota in preterm infants, the mechanisms of host-microbiome interaction, and the mechanism of action of this bacterium have also been investigated, aiming to provide new insights and opportunities in microbiome-targeted interventions in personalized medicine.
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Affiliation(s)
- Fatemah Sadeghpour Heravi
- Macquarie Medical School, Macquarie University, Sydney, NSW 2109, Australia
- Correspondence: (F.S.H.); (H.H.)
| | - Honghua Hu
- Macquarie Medical School, Macquarie University, Sydney, NSW 2109, Australia
- Innovation Center of Translational Pharmacy, Jinhua Institute of Zhejiang University, Jinhua 321016, China
- Correspondence: (F.S.H.); (H.H.)
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Florsheim EB, Bachtel ND, Cullen J, Lima BGC, Godazgar M, Zhang C, Carvalho F, Gautier G, Launay P, Wang A, Dietrich MO, Medzhitov R. Immune sensing of food allergens promotes aversive behaviour. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.01.19.524823. [PMID: 36712030 PMCID: PMC9882358 DOI: 10.1101/2023.01.19.524823] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
In addition to its canonical function in protecting from pathogens, the immune system can also promote behavioural alterations 1â€"3 . The scope and mechanisms of behavioural modifications by the immune system are not yet well understood. Using a mouse food allergy model, here we show that allergic sensitization drives antigen-specific behavioural aversion. Allergen ingestion activates brain areas involved in the response to aversive stimuli, including the nucleus of tractus solitarius, parabrachial nucleus, and central amygdala. Food aversion requires IgE antibodies and mast cells but precedes the development of gut allergic inflammation. The ability of allergen-specific IgE and mast cells to promote aversion requires leukotrienes and growth and differentiation factor 15 (GDF15). In addition to allergen-induced aversion, we find that lipopolysaccharide-induced inflammation also resulted in IgE-dependent aversive behaviour. These findings thus point to antigen-specific behavioural modifications that likely evolved to promote niche selection to avoid unfavourable environments.
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Affiliation(s)
- Esther B. Florsheim
- Department of Immunobiology, Yale University School of Medicine, New Haven, Connecticut 06520, USA,Centre for Immunotherapy, Vaccines, and Virotherapy (CIVV), Biodesign Institute, School of Life Sciences, Arizona State University, Tempe, AZ 85284, USA,Correspondence: and
| | - Nathaniel D. Bachtel
- Department of Immunobiology, Yale University School of Medicine, New Haven, Connecticut 06520, USA
| | - Jaime Cullen
- Department of Immunobiology, Yale University School of Medicine, New Haven, Connecticut 06520, USA
| | - Bruna G. C. Lima
- Department of Pharmacology, University of São Paulo, São Paulo, SP 05508-000 SP, Brazil,Centre for Immunotherapy, Vaccines, and Virotherapy (CIVV), Biodesign Institute, School of Life Sciences, Arizona State University, Tempe, AZ 85284, USA
| | - Mahdieh Godazgar
- Department of Comparative Medicine, Yale University School of Medicine, New Haven, CT 06510, USA
| | - Cuiling Zhang
- Department of Immunobiology, Yale University School of Medicine, New Haven, Connecticut 06520, USA
| | - Fernando Carvalho
- Department of Immunobiology, Yale University School of Medicine, New Haven, Connecticut 06520, USA
| | - Gregory Gautier
- INSERM UMRS 1149; CNRS ERL 8252; University Paris Diderot, Sorbonne Paris Cite, Laboratoire d’excellence INFLAMEX, Paris 75018, France
| | - Pierre Launay
- INSERM UMRS 1149; CNRS ERL 8252; University Paris Diderot, Sorbonne Paris Cite, Laboratoire d’excellence INFLAMEX, Paris 75018, France
| | - Andrew Wang
- Department of Internal Medicine and Immunobiology, Yale University School of Medicine, New Haven, CT 06520, USA
| | - Marcelo O. Dietrich
- Department of Comparative Medicine, Yale University School of Medicine, New Haven, CT 06510, USA
| | - Ruslan Medzhitov
- Department of Immunobiology, Yale University School of Medicine, New Haven, Connecticut 06520, USA,Howard Hughes Medical Institute,Tananbaum Center for Theoretical and Analytical Human Biology, Yale University School of Medicine, New Haven, CT, USA,Correspondence: and
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Hakami A, Yassin A, Bajoned M, Maashi R, Zila A, Dilyh N, Dilyh S, Ezzi F, Madkhali M. Asthma prevalence among medical students of jazan university, saudi arabia: A cross-sectional study. EGYPTIAN JOURNAL OF CHEST DISEASES AND TUBERCULOSIS 2023. [DOI: 10.4103/ecdt.ecdt_50_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023] Open
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65
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Pezeshki PS, Nowroozi A, Razi S, Rezaei N. Asthma and Allergy. Clin Immunol 2023. [DOI: 10.1016/b978-0-12-818006-8.00002-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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66
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Alanazi HH, Elfaki E. The immunomodulatory role of withania somnifera (L.) dunal in inflammatory diseases. Front Pharmacol 2023; 14:1084757. [PMID: 36909188 PMCID: PMC9992553 DOI: 10.3389/fphar.2023.1084757] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2022] [Accepted: 02/13/2023] [Indexed: 02/24/2023] Open
Abstract
Withania somnifera (L.) Dunal (Solanaceae) (also known as Ashwagandha) is a botanical drug that has been used for centuries to treat many chronic diseases like high blood pressure, arthritis, diabetes, Alzheimer's disease, and depression. As many botanical drugs, w. Somnifera possesses anti-inflammatory, antioxidant, anticarinogenic, anti-diabetic, and anti-asthmatic properties. W. somnifera is often compared to the ginseng plant due to its ability to reduce stress, improve cognitive functions (e.g., memory), and promote a healthy immune system. It promotes immunomodulatory effects whose function is to balance the humoral and cellular responses of the adaptive immune system. The therapeutic effect of w. Somnifera is attributed to active ingredients like alkaloids, steroidal lactones (such as withanolides, withaferins), and steroidal saponins. Although w. Somnifera is safe and highly recommended for treating various diseases, the current knowledge and understanding of its operational mechanisms are limited. One of the proposed mechanisms states that w. Somnifera promotes cellular-mediated immunity or initiates chemical interactions that contribute to therapeutic effects. Withania somnifera has been shown to play a significant role in immunological diseases by modulating several cytokines, increasing T-cell proliferation and enhancing macrophages functions. In this review, we will discuss the latest therapeutic effects of w. Somnifera on a number of diseases through modulating immunological markers and which specific components of w. Somnifera induce these therapeutic activities. We will also focus on the chemical properties in w. Somnifera components and their immunomodulatory role in type 2 allergic diseases where type 2 inflammation is highly imbalanced.
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Affiliation(s)
- Hamad H Alanazi
- Department of Clinical Laboratory Science, College of Applied Medical Sciences-Qurayyat, Jouf University, Al Jouf, Saudi Arabia
| | - Elyasa Elfaki
- Department of Clinical Laboratory Science, College of Applied Medical Sciences-Qurayyat, Jouf University, Al Jouf, Saudi Arabia
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The Role of Gut Bacteriome in Asthma, Chronic Obstructive Pulmonary Disease and Obstructive Sleep Apnoea. Microorganisms 2022; 10:microorganisms10122457. [PMID: 36557710 PMCID: PMC9781820 DOI: 10.3390/microorganisms10122457] [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: 10/29/2022] [Revised: 11/30/2022] [Accepted: 12/08/2022] [Indexed: 12/14/2022] Open
Abstract
The human body contains a very complex and dynamic ecosystem of bacteria. The bacteriome interacts with the host bi-directionally, and changes in either factor impact the entire system. It has long been known that chronic airway diseases are associated with disturbances in the lung bacteriome. However, less is known about the role of gut bacteriome in the most common respiratory diseases. Here, we aim to summarise the evidence concerning the role of the intestinal bacteriome in the pathogenesis and disease course of bronchial asthma, chronic obstructive pulmonary disease, and obstructive sleep apnea. Furthermore, we discuss the consequences of an altered gut bacteriome on the most common comorbidities of these lung diseases. Lastly, we also reflect on the therapeutic potential of influencing the gut microbiome to improve disease outcomes.
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68
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Hsiao CW, Yen TH, Wu YC, Chen JP, Chen YY, Huang WN, Chen YH, Chen YM. Comparison of Aspergillus-specific antibody cut-offs for the diagnosis of aspergillosis. Front Microbiol 2022; 13:1060727. [PMID: 36560943 PMCID: PMC9763268 DOI: 10.3389/fmicb.2022.1060727] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Accepted: 11/14/2022] [Indexed: 12/12/2022] Open
Abstract
Background Aspergillus diseases are frequently encountered in patients who are immunocompromised. Without a prompt diagnosis, the clinical consequences may be lethal. Aspergillus-specific antibodies have been widely used to facilitate the diagnosis of Aspergillus diseases. To date, universally standardized cut-off values have not been established. This study aimed to investigate the cut-off values of Aspergillus-specific antibodies and perform a narrative review to depict the geographic differences in the Taiwanese population. Methods We analyzed enrolled 118 healthy controls, 29 patients with invasive aspergillosis (IA), chronic pulmonary aspergillosis (CPA), and allergic bronchopulmonary aspergillosis (ABPA) and 99 with disease control, who were tested for Aspergillus fumigatus and Aspergillus niger-specific IgG and IgE using ImmunoCAP. 99 participants not fulfilling the diagnosis of IA, CPA, and ABPA were enrolled in the disease control group. The duration of retrieval of medical records from June 2018 to September 2021. Optimal cut-offs and association were determined using receiver operating characteristic curve (ROC) analysis. Results We found that patients with CPA had the highest A. fumigatus-specific IgG levels while patients with ABPA had the highest A. fumigatus-specific IgE, and A. niger-specific IgG and IgE levels. In patients with CPA and ABPA, the optimal cut-offs of A. fumigatus-specific IgG and A. niger-specific IgG levels were 41.6, 40.8, 38.1, and 69.9 mgA/l, respectively. Geographic differences in the cut-off values of A. fumigatus-specific IgG were also noted. Specifically, the levels were different in eco-climatic zones. Conclusion We identified the optimal cut-offs of Aspergillus-specific antibodies to facilitate a precise diagnosis of aspergillosis. The observed geographic differences of the antibody levels suggest that an eco-climatic-specific reference is needed to facilitate a prompt and accurate diagnosis of aspergillosis.
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Affiliation(s)
- Chien-Wen Hsiao
- Division of Allergy, Immunology and Rheumatology, Department of Internal Medicine, Taichung Veterans General Hospital, Taichung, Taiwan,Master Program for Health Administration (EMHA), Department of Industrial Engineering and Enterprise, Tunghai University, Taichung, Taiwan
| | - Tsai-Hung Yen
- Division of Allergy, Immunology and Rheumatology, Department of Internal Medicine, Taichung Veterans General Hospital, Taichung, Taiwan
| | - Yen-Ching Wu
- Division of Allergy, Immunology and Rheumatology, Department of Internal Medicine, Taichung Veterans General Hospital, Taichung, Taiwan
| | - Jun-Peng Chen
- Department of Medical Research, Taichung Veterans General Hospital, Taichung, Taiwan
| | - Yun-Yu Chen
- Department of Medical Research, Taichung Veterans General Hospital, Taichung, Taiwan,Cardiovascular Research Center, School of Medicine, National Yang Ming Chiao Tung University, Taipei City, Taiwan,Heart Rhythm Center, Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei City, Taiwan,Institute of Epidemiology and Preventive Medicine College of Public Health, National Taiwan University, Taipei City, Taiwan,Cardiovascular Center, Taichung Veterans General Hospital, Taichung, Taiwan
| | - Wen-Nan Huang
- Division of Allergy, Immunology and Rheumatology, Department of Internal Medicine, Taichung Veterans General Hospital, Taichung, Taiwan,School of Medicine, National Yang Ming Chiao Tung University, Taipei City, Taiwan,College of Business and Management, Ling Tung University, Taichung, Taiwan,Department of Post-Baccalaureate Medicine, College of Medicine, National Chung Hsing University, Taichung, Taiwan
| | - Yi-Hsing Chen
- Division of Allergy, Immunology and Rheumatology, Department of Internal Medicine, Taichung Veterans General Hospital, Taichung, Taiwan,School of Medicine, National Yang Ming Chiao Tung University, Taipei City, Taiwan,Department of Post-Baccalaureate Medicine, College of Medicine, National Chung Hsing University, Taichung, Taiwan
| | - Yi-Ming Chen
- Division of Allergy, Immunology and Rheumatology, Department of Internal Medicine, Taichung Veterans General Hospital, Taichung, Taiwan,Department of Medical Research, Taichung Veterans General Hospital, Taichung, Taiwan,School of Medicine, National Yang Ming Chiao Tung University, Taipei City, Taiwan,Department of Post-Baccalaureate Medicine, College of Medicine, National Chung Hsing University, Taichung, Taiwan,Institute of Biomedical Science and Rong Hsing Research Center for Translational Medicine, National Chung Hsing University, Taichung, Taiwan,*Correspondence: Yi-Ming Chen,
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Abed OA, Attlassy Y, Xu J, Han K, Moon JJ. Emerging Nanotechnologies and Microbiome Engineering for the Treatment of Inflammatory Bowel Disease. Mol Pharm 2022; 19:4393-4410. [PMID: 35878420 PMCID: PMC9763926 DOI: 10.1021/acs.molpharmaceut.2c00222] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Inflammatory bowel disease (IBD) is characterized by the chronic inflammation of the gastrointestinal tract and impacts almost 7 million people across the globe. Current therapeutics are effective in treating the symptoms, but they often do not address the root cause or selectively target areas of inflammation. Notably, self-assembled nanoparticles show great promise as drug delivery systems for the treatment of IBD. Nanoparticles can be designed to survive the harsh gastric conditions and reach inflamed areas of the gastrointestinal tract. Oral drug delivery with nanoparticles can localize drugs to the impacted inflamed region using active and/or passive targeting and promote a high rate of drug dispersion in local tissues, thus reducing potential off-target toxicities. Since a dysregulated gut microbiome is implicated in the development and progression of IBD, it is also important to develop nanoparticles and biomaterials that can restore symbiotic microbes while reducing the proliferation of harmful microbes. In this review, we highlight recent advances in self-assembled nanosystems designed for addressing inflammation and dysregulated gut microbiomes as potential treatments for IBD. Nanoparticles have a promising future in improving the delivery of current therapeutics, increasing patient compliance by providing an oral method of medication, and reducing side effects. However, remaining challenges include scale-up synthesis of nanoparticles, potential side effects, and financial obstacles of clinical trials. It would be in the patients' best interest to continue research on nanoparticles in the pursuit of more effective therapeutics for the treatment of IBD.
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Affiliation(s)
- Omar A Abed
- Department of Chemical Engineering, University of Michigan, Ann Arbor, Michigan 48109, United States
- Biointerfaces Institute, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Younes Attlassy
- Department of Medicine, New York University School of Medicine, New York, New York 10012, United States
| | - Jin Xu
- Biointerfaces Institute, University of Michigan, Ann Arbor, Michigan 48109, United States
- Department of Pharmaceutical Sciences, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Kai Han
- Biointerfaces Institute, University of Michigan, Ann Arbor, Michigan 48109, United States
- Department of Pharmaceutical Sciences, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - James J Moon
- Department of Chemical Engineering, University of Michigan, Ann Arbor, Michigan 48109, United States
- Biointerfaces Institute, University of Michigan, Ann Arbor, Michigan 48109, United States
- Department of Pharmaceutical Sciences, University of Michigan, Ann Arbor, Michigan 48109, United States
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, Michigan 48109, United States
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Hong Z, Jing R, Hui L, Kang X, Chunmei Z, Yang W, Baojian Z, Xin D, Xiaoping Y. A cohort study of intrapartum group B streptococcus prophylaxis on atopic dermatitis in 2-year-old children. BMC Pediatr 2022; 22:693. [PMID: 36460975 PMCID: PMC9716662 DOI: 10.1186/s12887-022-03758-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Accepted: 11/18/2022] [Indexed: 12/03/2022] Open
Abstract
OBJECTIVE To understand the occurrence of atopic dermatitis (AD) in children aged 2 years on exposure to maternal group B streptococcus (GBS) antibiotic prophylaxis (IAP). DESIGN Retrospective cohort study of 2909 mother-child pairs. SETTING Taixing People's Hospital in Eastern China. PARTICIPANTS Term infants born 2018-2019, followed longitudinally from birth to 2 years. EXPOSURES The GBS-IAP was defined as therapy with intravenous penicillin G or ampicillin or cefazolin ≥ 4 h prior to delivery to the mother. Reference infants were defined as born without or with other intrapartum antibiotic exposure. OUTCOMES The logistic regression models were employed to analyze the effect of intrapartum GBS prophylaxis on AD in 2-year-old children during delivery. Analysis was a priori stratified according to the mode of delivery and adjusted for relevant covariates. RESULTS The cohorts showed that preventive GBS-IAP was potentially associated with increased incidence of AD in children delivered vaginally according to logistic regression models before and after covariate-adjusted treatment (OR: 6.719,95% CI: 4.730-9.544,P < 0.001;aOR: 6.562,95% CI: 4.302-10.008, P < 0.001). CONCLUSION Prophylactic treatment of intrapartum GBS may raise the risk of AD in vaginally delivered children. These findings highlight the need to better understand the risk between childhood AD and current GBS-IAP intervention strategies.
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Affiliation(s)
- Zhang Hong
- grid.459988.1Taixing People’s Hospital, Taizhou, Jiangsu China
| | - Ren Jing
- grid.452253.70000 0004 1804 524XChildren’s Hospital of Soochow University, Soochow, Jiangsu China
| | - Li Hui
- grid.459988.1Taixing People’s Hospital, Taizhou, Jiangsu China
| | - Xu Kang
- grid.459988.1Taixing People’s Hospital, Taizhou, Jiangsu China
| | - Zhang Chunmei
- grid.459988.1Taixing People’s Hospital, Taizhou, Jiangsu China
| | - Wang Yang
- grid.459988.1Taixing People’s Hospital, Taizhou, Jiangsu China
| | - Zhou Baojian
- grid.459988.1Taixing People’s Hospital, Taizhou, Jiangsu China
| | - Ding Xin
- grid.452253.70000 0004 1804 524XChildren’s Hospital of Soochow University, Soochow, Jiangsu China
| | - Yin Xiaoping
- grid.459988.1Taixing People’s Hospital, Taizhou, Jiangsu China
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Chen S, Ren Z, Huo Y, Yang W, Peng L, Lv H, Nie L, Wei H, Wan C. Targeting the gut microbiota to investigate the mechanism of Lactiplantibacillus plantarum 1201 in negating colitis aggravated by a high-salt diet. Food Res Int 2022; 162:112010. [DOI: 10.1016/j.foodres.2022.112010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 09/26/2022] [Accepted: 09/28/2022] [Indexed: 11/29/2022]
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Fu W, Zheng Z, Zhao J, Feng M, Xian M, Wei N, Qin R, Xing Y, Yang Z, Wong GWK, Li J. Allergic disease and sensitization disparity in urban and rural China: A EuroPrevall-INCO study. Pediatr Allergy Immunol 2022; 33:e13903. [PMID: 36564871 DOI: 10.1111/pai.13903] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/29/2022] [Revised: 12/02/2022] [Accepted: 12/05/2022] [Indexed: 12/24/2022]
Abstract
BACKGROUND Studies in comparison with allergic diseases and sensitization between rural and urban environments in westernized countries might be biased and not adequately reflect countries undergoing rapid transition. METHODS A total of 5542 schoolchildren from urban area and 5139 from rural area were recruited for the EuroPrevall-INCO survey. A subsequent case-control sample with 196 children from urban area and 202 from rural area was recruited for a detailed face-to-face questionnaire and assessment of sensitization. Skin prick tests and serum-specific IgE measurements were used to assess sensitizations against food and aeroallergens. Logistic regression analysis was used to determine associations between risk/protective factors, food adverse reactions (FAR), allergic diseases, and sensitizations. RESULTS Prevalence of self-reported allergic diseases, including asthma (6.6% vs.2.5%), rhinitis (23.2% vs.5.3%), and eczema (34.1% vs.25.9%), was higher in urban than in rural children. Urban children had a significantly higher prevalence of FAR and related allergic diseases, and lower food/inhalation allergen sensitization rate, than those of rural children. In urban children, frequent changing places of residency (odds ratio 2.85, 95% confidence interval: 1.45-5.81) and antibiotic usage (3.54, 1.77-7.32) in early life were risk factors for sensitization, while sensitization and family history of allergy were risk factors for allergic diseases. In rural children, exposure to rural environments in early life was protective against both allergen sensitizations (0.46, 0.21-0.96) and allergic diseases (0.03, 0.002-0.19). CONCLUSION We observed a disparity in rates of allergic diseases and allergen sensitization between rural and urban children. In addition to family history, the development of allergic diseases and allergen sensitization were associated with specific urban/rural environmental exposures in early life.
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Affiliation(s)
- Wanyi Fu
- Department of Allergy and Clinical Immunology, State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Zhenyu Zheng
- Department of Allergy and Clinical Immunology, State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China.,Department of Pulmonary and Critical Care Medicine, Jieyang People' Hospital, Jieyang, China
| | - Jiefeng Zhao
- Department of Allergy and Clinical Immunology, State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Mulin Feng
- Department of Allergy and Clinical Immunology, State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Mo Xian
- Department of Allergy and Clinical Immunology, State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Nili Wei
- Department of Allergy and Clinical Immunology, State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Rundong Qin
- Department of Allergy and Clinical Immunology, State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Yuhan Xing
- Department of Pediatrics, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong, China
| | - Zhaowei Yang
- Department of Allergy and Clinical Immunology, State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Gary W K Wong
- Department of Pediatrics, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong, China
| | - Jing Li
- Department of Allergy and Clinical Immunology, State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
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Perkin MR, Strachan DP. The hygiene hypothesis for allergy - conception and evolution. FRONTIERS IN ALLERGY 2022; 3:1051368. [PMID: 36506644 PMCID: PMC9731379 DOI: 10.3389/falgy.2022.1051368] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Accepted: 10/20/2022] [Indexed: 11/25/2022] Open
Abstract
In 1989, a short paper entitled "Hay fever, hygiene and household size" observed that British children from larger families were less likely to develop hay fever and suggested that this could be because early exposure to infection prevents allergy. This sibship size association for hay fever, since replicated many times in Britain and other affluent countries and confirmed by objective measures of atopy, prompted what has come to be known as the "hygiene hypothesis for allergy", although that term was not specifically used in the 1989 paper. The present paper reviews the historical roots of the "hygiene hypothesis" and charts its development over more than 30 years. Initial scepticism among immunologists turned to enthusiasm in the mid-1990s as the Th1/Th2 paradigm for allergic sensitisation emerged from animal experiments and the concept of "immunological old friends" became popular from the early 2000s. From the late 1990s, observations of reduced allergy risk among children of anthroposophic families and those brought up on farms suggested that the sibship size effects formed part of a broader range of "hygiene-related" determinants of allergy. Children from large families with farming exposure have approximately sixfold reduction in prevalence of hay fever, indicating the potential strength and epidemiological importance of these environmental determinants. During the 21st century, a wide range of specific microbial, environmental and lifestyle factors have been investigated as possible underlying mechanisms, but sadly none have emerged as robust explanations for the family size and farming effects. Thus, while the "hygiene hypothesis" led to a fundamental reappraisal of our relationship with our microbial environment and to the concept that early exposure, rather than avoidance, is beneficial for developing a healthy immune system, the underlying mechanism for variations in allergy prevalence with family size remains, in Churchillian terms, "a riddle wrapped in a mystery inside an enigma".
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Effects of high fat diet-induced obesity on pathophysiology, immune cells, and therapeutic efficacy in systemic lupus erythematosus. Sci Rep 2022; 12:18532. [PMID: 36323742 PMCID: PMC9630451 DOI: 10.1038/s41598-022-21381-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Accepted: 09/27/2022] [Indexed: 11/06/2022] Open
Abstract
Prior studies have suggested a strong link between obesity and autoimmune diseases. This study aimed to evaluate the effects of high fat diet (HFD)-induced obesity on the disease pathogenesis, immune cell infiltration, and therapeutic efficacy in systemic lupus erythematosus (SLE). Treatment with methylprednisolone significantly increased the survival in the control diet group, but not in the HFD group. An HFD significantly increased the incidence of severe proteinuria and glucose intolerance. Regardless of the diet, treatment with methylprednisolone significantly decreased the serum levels of anti-dsDNA antibodies, IL-2, IL-10, and interferon γ-induced protein 10 (IP-10), and improved the renal pathology scores. Treatment with methylprednisolone significantly lowered the serum levels of IL-6, MCP-1, and TNF-α in the control diet group, but not in the HFD group. HFD significantly increased the proportions of CD45+ and M1 cells and significantly decreased the proportion of M2 cells in white adipose tissue; methylprednisolone treatment significantly rescued this effect. In the HFD group, methylprednisolone treatment significantly decreased the M1:M2 and increased the Foxp3+:RORγt+ cell in the spleen compared with the untreated group. These data improve our understanding of the effect of HFD on the therapeutic efficacy of corticosteroids in SLE treatment, which could have clinical implications.
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Rostami A, Riahi SM, Mollalo A, Razavian I, Akbari N, Marhoommirzabak E, Mahjour S, Sartip B, Arshadi M, Razavian E, Ardekani A. Does latent Toxoplasma infection have a protective effect against developing multiple sclerosis? Evidence from an updated meta-analysis. Trans R Soc Trop Med Hyg 2022; 116:996-1006. [PMID: 35696089 DOI: 10.1093/trstmh/trac053] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Revised: 03/14/2022] [Accepted: 05/17/2022] [Indexed: 01/19/2023] Open
Abstract
Previous epidemiologic evidence suggests a protective effect of Toxoplasma gondii infection against multiple sclerosis (MS) development; however, inconsistent findings have been reported in this regard. Therefore, we performed an updated meta-analysis of observational studies to investigate the association of To. gondii infection with MS development. We searched all articles published in PubMed, Scopus, Embase and Web of Science databases as of 20 December 2021. A random effects meta-analysis model was used to generate the pooled OR at 95% CIs. The heterogeneity between studies was assessed using I2 and Cochran's Q statistics. Moreover, the likelihood of publication bias was determined by Egger's regression test. A total of 11 studies were eligible for meta-analysis, including 1172 MS cases and 1802 controls. Our findings indicated that 29.8% (95% CI 22.8 to 37.2%) of MS patients were seropositive for To. gondii infection, compared with 34.2% (95% CI 21.9 to 47.6%) of control subjects. The estimated pooled OR was 0.79 (95% CI 0.49 to 1.26), suggesting a non-significant negative association between To. gondii infection and MS development (p>0.05). The current study does not support the significant protective role of To. gondii infection on MS development. Our findings imply that further well-designed epidemiological and mechanistic studies are warranted to ascertain the possible association between To. gondii infection and MS and to exclude the potential confounders.
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Affiliation(s)
- Ali Rostami
- Infectious Diseases and Tropical Medicine Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran
| | - Seyed Mohammad Riahi
- Cardiovascular Diseases Research Center, Department of Epidemiology and Biostatistics, School of Medicine, Birjand University of Medical Sciences, Birjand, Iran
| | - Abolfazl Mollalo
- Department of Public Health and Prevention Science, School of Health Sciences, Baldwin Wallace University, Berea, Ohio, USA
| | - Iman Razavian
- Department of Neurosurgery, Functional Neurosurgery Research Center, Shohada Tajrish Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Nahid Akbari
- Department of Genetic, Faculty of Basic Science, Islamic Azad University, Varamin Pishva Branch, Tehran, Iran
| | - Elika Marhoommirzabak
- Department of Neurology, University of Visayas, Gullas College of Medicine, Cebu city, 600 Cebu, Philippines
| | - Sanaz Mahjour
- Department of Psychiatry and Behavioral Sciences, Northwestern Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Behnam Sartip
- Department of Internal Medicine, Zanjan University of Medical Sciences, Zanjan, Iran
| | - Mahdi Arshadi
- Department of Psychiatry and Behavioral Sciences, Northwestern Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Elnaz Razavian
- Department of Neurology, Tehran Medical Sciences Branch, Islamic Azad University, Tehran, Iran
| | - Ali Ardekani
- Student Research Committee, Shiraz University of Medical Sciences, Shiraz, Iran
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76
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Sochal M, Ditmer M, Gabryelska A, Białasiewicz P. The Role of Brain-Derived Neurotrophic Factor in Immune-Related Diseases: A Narrative Review. J Clin Med 2022; 11:6023. [PMID: 36294343 PMCID: PMC9604720 DOI: 10.3390/jcm11206023] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Revised: 10/05/2022] [Accepted: 10/10/2022] [Indexed: 07/26/2023] Open
Abstract
Brain-derived neurotrophic factor (BDNF) is a neurotrophin regulating synaptic plasticity, neuronal excitability, and nociception. It seems to be one of the key molecules in interactions between the central nervous system and immune-related diseases, i.e., diseases with an inflammatory background of unknown etiology, such as inflammatory bowel diseases or rheumatoid arthritis. Studies show that BDNF levels might change in the tissues and serum of patients during the course of these conditions, e.g., affecting cell survival and modulating pain severity and signaling pathways involving different neurotransmitters. Immune-related conditions often feature psychiatric comorbidities, such as sleep disorders (e.g., insomnia) and symptoms of depression/anxiety; BDNF may be related as well to them as it seems to exert an influence on sleep structure; studies also show that patients with psychiatric disorders have decreased BDNF levels, which increase after treatment. BDNF also has a vital role in nociception, particularly in chronic pain, hyperalgesia, and allodynia, participating in the formation of central hypersensitization. In this review, we summarize the current knowledge on BDNF's function in immune-related diseases, sleep, and pain. We also discuss how BDNF is affected by treatment and what consequences these changes might have beyond the nervous system.
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Martin VM, Virkud YV, Dahan E, Seay HL, Itzkovits D, Vlamakis H, Xavier R, Shreffler WG, Yuan Q, Yassour M. Longitudinal disease-associated gut microbiome differences in infants with food protein-induced allergic proctocolitis. MICROBIOME 2022; 10:154. [PMID: 36138438 PMCID: PMC9503280 DOI: 10.1186/s40168-022-01322-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Accepted: 07/02/2022] [Indexed: 06/16/2023]
Abstract
BACKGROUND Complex interactions between the gut microbiome and immune cells in infancy are thought to be part of the pathogenesis for the marked rise in pediatric allergic diseases, particularly food allergies. Food protein-induced allergic proctocolitis (FPIAP) is commonly the earliest recognized non-immunoglobulin E (IgE)-mediated food allergy in infancy and is associated with atopic dermatitis and subsequent IgE-mediated food allergy later in childhood. Yet, a large prospective longitudinal study of the microbiome of infants with FPIAP, including samples prior to symptom onset, has not been done. RESULTS Here, we analyzed 954 longitudinal samples from 160 infants in a nested case-control study (81 who developed FPIAP and 79 matched controls) from 1 week to 1 year of age by 16S rRNA ribosomal gene sequencing as part of the Gastrointestinal Microbiome and Allergic Proctocolitis (GMAP) study. We found key differences in the microbiome of infants with FPIAP, most strongly a higher abundance of a genus of Enterobacteriaceae and a lower abundance of a family of Clostridiales during the symptomatic period. We saw some of these significant taxonomic differences even prior to symptom onset. There were no consistent longitudinal differences in richness or stability diversity metrics between infants with FPIAP and healthy controls. CONCLUSIONS This study is the first to identify differences in the infant gut microbiome in children who develop FPIAP, some even before they develop symptoms, and provides a foundation for more mechanistic investigation into the pathogenesis of FPIAP and subsequent food allergic diseases in childhood. Video abstract.
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Affiliation(s)
- Victoria M. Martin
- Food Allergy Center, Massachusetts General Hospital, Boston, MA USA
- Division of Pediatric Gastroenterology, Hepatology and Nutrition, Massachusetts General Hospital, Boston, MA USA
- Department of Pediatrics, Harvard Medical School, Boston, MA USA
- Food Allergy Science Initiative of the Broad Institute, Cambridge, MA USA
| | - Yamini V. Virkud
- Food Allergy Center, Massachusetts General Hospital, Boston, MA USA
- Department of Pediatrics, Harvard Medical School, Boston, MA USA
- Food Allergy Science Initiative of the Broad Institute, Cambridge, MA USA
- Division of Pediatric Allergy and Immunology, Massachusetts General Hospital, Boston, MA USA
| | - Ehud Dahan
- The Rachel and Selim Benin School of Computer Science and Engineering, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Hannah L. Seay
- Division of Pediatric Allergy and Immunology, Massachusetts General Hospital, Boston, MA USA
| | - Dvir Itzkovits
- The Rachel and Selim Benin School of Computer Science and Engineering, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Hera Vlamakis
- Microbiome and Infectious Diseases, The Broad Institute of MIT and Harvard University, Cambridge, MA USA
| | - Ramnik Xavier
- Food Allergy Science Initiative of the Broad Institute, Cambridge, MA USA
- Microbiome and Infectious Diseases, The Broad Institute of MIT and Harvard University, Cambridge, MA USA
- Center for Computational and Integrative Biology, Massachusetts General Hospital, Boston, MA USA
- Department of Molecular Biology, Massachusetts General Hospital, Boston, MA, USA
- Klarman Cell Observatory, Broad Institute of MIT and Harvard, Cambridge, MA USA
| | - Wayne G. Shreffler
- Food Allergy Center, Massachusetts General Hospital, Boston, MA USA
- Department of Pediatrics, Harvard Medical School, Boston, MA USA
- Food Allergy Science Initiative of the Broad Institute, Cambridge, MA USA
- Division of Pediatric Allergy and Immunology, Massachusetts General Hospital, Boston, MA USA
| | - Qian Yuan
- Food Allergy Center, Massachusetts General Hospital, Boston, MA USA
- Division of Pediatric Gastroenterology, Hepatology and Nutrition, Massachusetts General Hospital, Boston, MA USA
- Department of Pediatrics, Harvard Medical School, Boston, MA USA
- Food Allergy Science Initiative of the Broad Institute, Cambridge, MA USA
- Pediatrics at Newton Wellesley, P.C, Newton, MA USA
| | - Moran Yassour
- The Rachel and Selim Benin School of Computer Science and Engineering, The Hebrew University of Jerusalem, Jerusalem, Israel
- Microbiology & Molecular Genetics Department, Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem, Israel
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78
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Wong YS, Osborne NJ. Biodiversity Effects on Human Mental Health via Microbiota Alterations. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:11882. [PMID: 36231182 PMCID: PMC9565733 DOI: 10.3390/ijerph191911882] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Revised: 09/12/2022] [Accepted: 09/14/2022] [Indexed: 06/16/2023]
Abstract
The biodiversity hypothesis postulates that the natural environment positively affects human physical and mental health. We evaluate the latest evidence and propose new tools to examine the halobiont environment. We chose to target our review at neuropsychiatric disorders, including depression, anxiety, autism, dementia, multiple sclerosis, etc. because a green prescription (exposure to green spaces) was shown to benefit patients with neuropsychiatric disorders. Specifically, our review consists of three mini reviews on the associations exploring: (1) ecological biodiversity and human microbiota; (2) human microbiota and neuropsychiatric disorders; (3) ecological biodiversity and neuropsychiatric disorders. We conclude that the environment could directly transfer microbes to humans and that human studies support the gut microbiota as part of the pathophysiology of neuropsychiatric disorders. Overall, the results from the three mini reviews consistently support the biodiversity hypothesis. These findings demonstrated the plausibility of biodiversity exerting mental health effects through biophysiological mechanisms instead of psychological mechanisms alone. The idea can be further tested with novel biodiversity measurements and research on the effects of a green prescription.
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Affiliation(s)
- Yee Sang Wong
- School of Medicine, The University of Queensland, Herston, QLD 4006, Australia
| | - Nicholas John Osborne
- School of Public Health, The University of Queensland, Herston, QLD 4006, Australia
- School of Population Health, University of New South Wales, Sydney, NSW 2052, Australia
- European Centre for Environment and Human Health (ECEHH), University of Exeter Medical School, Knowledge Spa, Royal Cornwall Hospital, Truro TR1 3HD, Cornwall, UK
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79
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Allin KH, Poulsen G, Melgaard D, Frandsen LT, Jess T, Krarup AL. Eosinophilic oesophagitis in Denmark: Population‐based incidence and prevalence in a nationwide study from 2008 to 2018. United European Gastroenterol J 2022; 10:640-650. [PMID: 36106558 PMCID: PMC9486498 DOI: 10.1002/ueg2.12273] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Accepted: 06/18/2022] [Indexed: 11/09/2022] Open
Abstract
Background Eosinophilic oesophagitis (EoE) is a chronic immune‐mediated or antigen‐mediated oesophageal disease characterised by symptoms related to oesophageal dysfunction and eosinophil‐predominant inflammation. Objective We aimed to estimate the incidence and prevalence of EoE in Denmark during the period 2008–2018. Methods Based on data from nationwide registers we identified cases of EoE using two definitions: a broad definition based solely on oesophageal biopsies registered in the Danish Pathology Register and a narrow definition also including symptoms of oesophageal dysfunction registered in the Danish National Patient Registry. The annual incidence and prevalence were standardised by sex and age in 5‐year intervals to the 2013 study population. Results From 2008 to 2011, the standardised incidence of EoE was stable, but from 2011 to 2018 it increased from 3.9 (95% CI 3.3–4.4) to 11.7 (95% CI 10.8–12.6) per 100,000 person‐years. Similar temporal trends were observed when using the narrow EoE definition. The increase in incidence was most pronounced in men and in individuals above 40 years of age. In children, the EoE incidence was a fourth of the incidence in adults aged 40–64 years: 4.4 (95% CI 3.2–5.6) versus 17.6 (95% CI 15.7–19.5) per 100,000 person‐years. The EoE incidence varied substantially across the five regions in Denmark. Overall, the biopsy rate as well as the proportion of oesophageal biopsies with detected eosinophilia increased during the study period. Conclusion This study of the entire population of Denmark during the period 2008 to 2018 shows that the incidence and prevalence of EoE is not yet plateauing and that EoE could be severely underdiagnosed, especially in children.
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Affiliation(s)
- Kristine Højgaard Allin
- Center for Molecular Prediction of Inflammatory Bowel Disease (PREDICT) Department of Clinical Medicine Aalborg University Copenhagen Denmark
- Department of Gastroenterology and Hepatology Aalborg University Hospital Aalborg Denmark
| | - Gry Poulsen
- Center for Molecular Prediction of Inflammatory Bowel Disease (PREDICT) Department of Clinical Medicine Aalborg University Copenhagen Denmark
| | - Dorte Melgaard
- Center of Clinical Research North Denmark Regional Hospital Hjørring Denmark
- Faculty of Clinical Medicine Aalborg University Aalborg Denmark
| | | | - Tine Jess
- Center for Molecular Prediction of Inflammatory Bowel Disease (PREDICT) Department of Clinical Medicine Aalborg University Copenhagen Denmark
- Department of Gastroenterology and Hepatology Aalborg University Hospital Aalborg Denmark
| | - Anne Lund Krarup
- Department of Gastroenterology and Hepatology Aalborg University Hospital Aalborg Denmark
- Faculty of Clinical Medicine Aalborg University Aalborg Denmark
- Department of Emergency Medicine and Trauma Care Aalborg University Hospital Aalborg Denmark
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Xie X, Wu Z, Wu Y, Liu J, Chen X, Shi X, Wei C, Li J, Lv J, Li Q, Tang L, He S, Zhan T, Tang Z. Cysteine protease of Clonorchis sinensis alleviates DSS-induced colitis in mice. PLoS Negl Trop Dis 2022; 16:e0010774. [PMID: 36084127 PMCID: PMC9491586 DOI: 10.1371/journal.pntd.0010774] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Revised: 09/21/2022] [Accepted: 08/29/2022] [Indexed: 11/19/2022] Open
Abstract
Background
Currently, inflammatory bowel disease (IBD) has become a global chronic idiopathic disease with ever-rising morbidity and prevalence. Accumulating evidence supports the IBD-hygiene hypothesis that helminths and their derivatives have potential therapeutic value for IBD. Clonorchis sinensis (C. sinensis) mainly elicit Th2/Treg-dominated immune responses to maintain long-term parasitism in the host. This study aimed to evaluate the therapeutic effects of cysteine protease (CsCP) and adult crude antigen (CsCA) of C. sinensis, and C. sinensis (Cs) infection on DSS-induced colitis mice.
Methods
BALB/c mice were given 5% DSS daily for 7 days to induce colitis. During this period, mice were treated with rCsCP, CsCA or dexamethasone (DXM) every day, or Cs infection which was established in advance. Changes in body weight, disease activity index (DAI), colon lengths, macroscopic scores, histopathological findings, myeloperoxidase (MPO) activity levels, regulatory T cell (Treg) subset levels, colon gene expression levels, serum cytokine levels, and biochemical indexes were measured.
Results
Compared with Cs infection, rCsCP and CsCA alleviated the disease activity of acute colitis more significant without causing abnormal blood biochemical indexes. In comparison, rCsCP was superior to CsCA in attenuating colonic pathological symptoms, enhancing the proportion of Treg cells in spleens and mesenteric lymph nodes, and improving the secretion of inflammatory-related cytokines (e.g., IL-2, IL-4, IL-10 and IL-13) in serum. Combined with RNA-seq data, it was revealed that CsCA might up-regulate the genes related to C-type lectin receptor and intestinal mucosal repair related signal pathways (e.g., Cd209d, F13a1 and Cckbr) to reduce colon inflammation and benefit intestinal mucosal repair. Dissimilarly, rCsCP ameliorated colitis mainly through stimulating innate immunity, such as Toll like receptor (TLR) signaling pathway, down-regulating the expression of inflammatory cytokines (e.g., IL-12b, IL-23r and IL-7), thereby restraining the differentiation of Th1/Th17 cells.
Conclusions
Both rCsCP and CsCA showed good therapeutic effects on the treatment of acute colitis, but rCsCP is a better choice. rCsCP is a safe, effective, readily available and promising therapeutic agent against IBD mainly by activating innate immunity and regulating the IL-12/IL-23r axis.
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Affiliation(s)
- Xiaoying Xie
- School of Pre-clinical Medicine, Guangxi Medical University, Nanning, China
| | - Zhanshuai Wu
- Department of Immunology, Guangxi University of Chinese Medicine, Nanning, China
- GuangXi Medical Transformational Key Laboratory of Combine Traditional Chinese and Western Medicine and High Incidence of Infectious Diseases, Nanning, China
| | - Yuhong Wu
- School of Pre-clinical Medicine, Guangxi Medical University, Nanning, China
- Department of Cell Biology and Genetics, School of Pre-clinical Medicine, Guangxi Medical University, Nanning, China
| | - Jing Liu
- School of Pre-clinical Medicine, Guangxi Medical University, Nanning, China
| | - Xinyuan Chen
- School of Pre-clinical Medicine, Guangxi Medical University, Nanning, China
| | - Xiaoqian Shi
- School of Pre-clinical Medicine, Guangxi Medical University, Nanning, China
| | - Caiheng Wei
- School of Pre-clinical Medicine, Guangxi Medical University, Nanning, China
| | - Jiasheng Li
- School of Pre-clinical Medicine, Guangxi Medical University, Nanning, China
| | - Jiahui Lv
- School of Pre-clinical Medicine, Guangxi Medical University, Nanning, China
- Department of Parasitology, Guangxi Medical University, Nanning, China
| | - Qing Li
- Department of Cell Biology and Genetics, School of Pre-clinical Medicine, Guangxi Medical University, Nanning, China
- Key Laboratory of Longevity and Aging-related Diseases of Chinese Ministry of Education, Guangxi Medical University, Nanning, China
| | - Lili Tang
- Department of Parasitology, Guangxi Medical University, Nanning, China
- Key Laboratory of Longevity and Aging-related Diseases of Chinese Ministry of Education, Guangxi Medical University, Nanning, China
| | - Shanshan He
- Department of Parasitology, Guangxi Medical University, Nanning, China
- Key Laboratory of Longevity and Aging-related Diseases of Chinese Ministry of Education, Guangxi Medical University, Nanning, China
| | - Tingzheng Zhan
- Department of Parasitology, Guangxi Medical University, Nanning, China
- Key Laboratory of Longevity and Aging-related Diseases of Chinese Ministry of Education, Guangxi Medical University, Nanning, China
- * E-mail: (TZ); (ZT)
| | - Zeli Tang
- Department of Cell Biology and Genetics, School of Pre-clinical Medicine, Guangxi Medical University, Nanning, China
- Key Laboratory of Longevity and Aging-related Diseases of Chinese Ministry of Education, Guangxi Medical University, Nanning, China
- * E-mail: (TZ); (ZT)
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81
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Chen X, Lin L, Huang L, Wu M, Tan T, Li Q, Zhong C, Wang H, Wang W, Sun G, Yi N, Yang X, Hao L, Yang H, Yang N. Association of maternal low-carbohydrate-diet score during pregnancy with allergic diseases at 2 years of age. Pediatr Allergy Immunol 2022; 33:e13842. [PMID: 36156822 DOI: 10.1111/pai.13842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Revised: 07/22/2022] [Accepted: 08/12/2022] [Indexed: 11/30/2022]
Abstract
BACKGROUND We prospectively evaluated the association between low-carbohydrate-diet (LCD) score during pregnancy and the risk of allergic diseases in infants up to 2 years. METHODS Participants were from a prospective mother-offspring cohort study in Wuhan, China. LCD score was calculated according to the percentage of dietary energy intake from carbohydrate, protein, and fat assessed in late pregnancy using validated food frequency questionnaires. Allergic diseases, including immunoglobulin E (IgE)-mediated allergic diseases, allergic contact dermatitis, and food allergy, were recorded at 3, 6, 12, and 24 months postpartum follow-up. Poisson regression models were used to calculate relative risks (RRs) and 95% confidence intervals (CIs). RESULTS Among 1636 mother-infant pairs included in the present analysis, 230 infants (14.1%) with IgE-mediated allergic diseases, 77 (4.7%) with allergic contact dermatitis, and 488 (29.8%) with food allergy were, respectively, reported. Independent of total energy intake and other potential confounders, both the lowest quintile (RR, 1.77; 95% CI, 1.13-2.77) and the highest quintile (RR, 1.72; 95% CI, 1.22-2.63), were associated with the risk of IgE-mediated allergic diseases compared with the middle quintile. Among high-carbohydrate-diet pregnant women, substituting 5% of energy from either protein or fat for carbohydrate was associated with a lower risk of IgE-mediated allergic diseases. While among low-carbohydrate-diet pregnant women, substituting 5% of energy from carbohydrate, especially high-quality carbohydrate, for fat was associated with a lower risk of IgE-mediated allergic diseases. CONCLUSION Maternal low carbohydrate-high protein and fat, and high carbohydrate-low protein and fat diet were both associated with an increased risk of allergic diseases in the infants up to 2 years. This study may provide an intervention strategy for allergy prevention in early childhood.
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Affiliation(s)
- Xi Chen
- Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Ministry of Education Key Laboratory of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Lixia Lin
- Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Ministry of Education Key Laboratory of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Li Huang
- Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Ministry of Education Key Laboratory of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Meng Wu
- Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Ministry of Education Key Laboratory of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Tianqi Tan
- Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Ministry of Education Key Laboratory of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Qian Li
- Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Ministry of Education Key Laboratory of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Chunrong Zhong
- Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Ministry of Education Key Laboratory of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Huanzhuo Wang
- Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Ministry of Education Key Laboratory of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Weiming Wang
- Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Ministry of Education Key Laboratory of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Guoqiang Sun
- Maternal and Child Health Hospital of Hubei Province, Wuhan, China
| | - Nianhua Yi
- Maternal and Child Health Hospital of Hubei Province, Wuhan, China
| | - Xuefeng Yang
- Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Ministry of Education Key Laboratory of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Liping Hao
- Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Ministry of Education Key Laboratory of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Hongying Yang
- Institute of Health Education, Hubei Provincial Center for Disease Control and Prevention, Wuhan, China
| | - Nianhong Yang
- Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Ministry of Education Key Laboratory of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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Biomolecular Mechanisms of Autoimmune Diseases and Their Relationship with the Resident Microbiota: Friend or Foe? PATHOPHYSIOLOGY 2022; 29:507-536. [PMID: 36136068 PMCID: PMC9505211 DOI: 10.3390/pathophysiology29030041] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 08/23/2022] [Accepted: 08/26/2022] [Indexed: 12/02/2022] Open
Abstract
The use of innovative approaches to elucidate the pathophysiological mechanisms of autoimmune diseases, as well as to further study of the factors which can have either a positive or negative effect on the course of the disease, is essential. In this line, the development of new molecular techniques and the creation of the Human Genome Program have allowed access to many more solutions to the difficulties that exist in the identification and characterization of the microbiome, as well as changes due to various factors. Such innovative technologies can rekindle older hypotheses, such as molecular mimicry, allowing us to move from hypothesis to theory and from correlation to causality, particularly regarding autoimmune diseases and dysbiosis of the microbiota. For example, Prevotella copri appears to have a strong association with rheumatoid arthritis; it is expected that this will be confirmed by several scientists, which, in turn, will make it possible to identify other mechanisms that may contribute to the pathophysiology of the disease. This article seeks to identify new clues regarding similar correlations between autoimmune activity and the human microbiota, particularly in relation to qualitative and quantitative microbial variations therein.
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83
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Jakhmola S, Sk MF, Chatterjee A, Jain K, Kar P, Jha HC. A plausible contributor to multiple sclerosis; presentation of antigenic myelin protein epitopes by major histocompatibility complexes. Comput Biol Med 2022; 148:105856. [PMID: 35863244 DOI: 10.1016/j.compbiomed.2022.105856] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Revised: 06/17/2022] [Accepted: 06/17/2022] [Indexed: 11/17/2022]
Abstract
BACKGROUND Multiple sclerosis (MS) can be induced upon successful presentation of myelin antigens by MHC I/II. Antigenic similarity between the myelin and viral proteins may worsen the immunological responses. METHODOLOGY Antigenic regions within myelin proteins; PLP1, MBP, MOG, and MAG were analyzed using SVMTrip and EMBOSS. Homology search identified sequence similarity between the predicted host epitopes and viral proteins. NetMHCpan predicted MHC I/II binding followed by peptide-protein docking through the HPEPDOCK server. Thereafter we analyzed conformational flexibility and stability of 15 protein-peptide complexes based on high docking scores. The binding free energy was calculated using conventional (MD) and Gaussian accelerated molecular dynamics simulation. RESULTS PLP1, MBP, MAG and MOG contained numerous antigenic epitopes. MBP and MOG epitopes had sequence similarity to HHV-6 BALF5; EBNA1 and CMV glycoprotein M (gM), and EBV LMP2B, gp350/220; HHV-8 ORFs respectively. Many herpes virus proteins like tegument, envelope glycoproteins, and ORFs of EBV, CMV, HHV-6, and HHV-8 demonstrated sequence similarity with MAG and PLP1. Some antigenic peptides were also linear B-cell epitopes and influenced cytokine production by T-cell. MHC I allele HLA-B*57:01 bound to PLP1 peptide and HLA-A*68:02 bound to a MAG peptide strongly. MHC II alleles HLA-DRB1*04:05 and HLA-DR1*01:01 associated with MAG- and MOG-derived peptides, respectively, demonstrating high HPEPDOCK scores. MD simulations established stable binding of certain peptides with the MHC namely HLA-B*51:01-MBP(DYKSAHKGFKGVDAQGTLSKIFKL), HLA-B*57:01-PLP1(PDKFVGITYALTVVWLLVFACSAVPVYIYF), HLA-DR1*01:01-MOG(VEDPFYWVSPGVLVLLAVLPVLLLQITVGLVFLCLQYR) and HLA-DRB1*04:05-MAG(TWVQVSLLHFVPTREA). CONCLUSIONS Cross-reactivity between self-antigens and pathogen derived immunodominant epitopes may induce MS. Our study supported the role of specific MHC alleles as a contributing MS risk factor.
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Affiliation(s)
- Shweta Jakhmola
- Infection Bioengineering Group, Department of Biosciences and Biomedical Engineering, Indian Institute of Technology Indore, India.
| | - Md Fulbabu Sk
- Department of Biosciences and Biomedical Engineering, Indian Institute of Technology Indore, India
| | - Akash Chatterjee
- Infection Bioengineering Group, Department of Biosciences and Biomedical Engineering, Indian Institute of Technology Indore, India
| | - Khushboo Jain
- Infection Bioengineering Group, Department of Biosciences and Biomedical Engineering, Indian Institute of Technology Indore, India
| | - Parimal Kar
- Department of Biosciences and Biomedical Engineering, Indian Institute of Technology Indore, India.
| | - Hem Chandra Jha
- Infection Bioengineering Group, Department of Biosciences and Biomedical Engineering, Indian Institute of Technology Indore, India.
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84
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Gitas G, Alkatout I, Ertan KA, Rody A, Proppe L, Kocaer M, Laganà AS, Allahqoli L, Mikos T, Sommer S, Baum S. Risk factor analysis in women who underwent trial of labor after cesarean section: a multicenter study in xxxxxx. J Turk Ger Gynecol Assoc 2022; 23:137-144. [PMID: 35781586 PMCID: PMC9450926 DOI: 10.4274/jtgga.galenos.2022.2022-1-2] [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] [Indexed: 12/01/2022] Open
Abstract
Objective: Rising caesarean delivery (CD) rates throughout the world are accompanied with high rates of severe maternal complications. The aim of the present study was to analyze the outcome of trial of labor after caesarean section (TOLAC) in a Western population and identify factors associated with the success of vaginal birth after caesarean section (VBAC). Material and Methods: A retrospective study was performed at two large obstetric departments in Germany from 2008 to 2018. Women with singleton pregnancies, a history of only one previous CD with a low transverse incision, a viable fetus in cephalic presentation, and gestational age >32 weeks were included in the study. The characteristics and outcome of successful VBAC and failed TOLAC were compared. A subgroup analysis addressed gestational age, interpregnancy interval, fetal macrosomia, body mass index, and maternal age. Results: Of 1,546 patients, 62.3% achieved VBAC while 37.7% had a secondary CD. Independent factors associated with the success of TOLAC were a history of vaginal birth in previous pregnancies (p<0.001) and the use of oxytocin (p<0.001), whereas preterm birth between gestational week 32 and 37 signified a higher risk of failed TOLAC (p=0.04). The success of VBAC did not differ significantly for patients older than 40 years of age, those with a shorter interpregnancy interval than 12 months, and fetal macrosomia with birth weight exceeding 4000 grams. Maternal and neonatal outcomes were poorer in women with failed TOLAC. Conclusion: Nearly two thirds of women with a history of CD achieve VBAC in Germany. Previous vaginal birth and the augmentation of labor with oxytocin are positively associated with the achievement of VBAC and no major perinatal complications. The decision to have a TOLAC should be encouraged in the majority of patients. Further studies are needed to evaluate the feasibility of TOLAC in preterm delivery.
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Affiliation(s)
- George Gitas
- Department of Obstetrics and Gynecology, University Hospital of Schleswig Holstein, Campus Luebeck, Germany, Berlin, Berlin, Germany
| | - Ibrahim Alkatout
- Department of Obstetrics and Gynecology, University Hospital of Schleswig Holstein, Campus Luebeck, Germany, Berlin, Berlin, Germany
| | - Kubilay A Ertan
- Department of Obstetrics and Gynecology, University Hospital of Schleswig Holstein, Campus Luebeck, Germany, Berlin, Berlin, Germany
| | - Achim Rody
- Department of Obstetrics and Gynecology, University Hospital of Schleswig Holstein, Campus Luebeck, Germany, Berlin, Berlin, Germany
| | - Louisa Proppe
- Department of Obstetrics and Gynecology, University Hospital of Schleswig Holstein, Campus Luebeck, Germany, Berlin, Berlin, Germany
| | - Mustafa Kocaer
- Department of Obstetrics and Gynecology, University Hospital of Schleswig Holstein, Campus Luebeck, Germany, Berlin, Berlin, Germany
| | - Antonio Simone Laganà
- Department of Obstetrics and Gynecology, University Hospital of Schleswig Holstein, Campus Luebeck, Germany, Berlin, Berlin, Germany
| | - Leila Allahqoli
- Department of Obstetrics and Gynecology, University Hospital of Schleswig Holstein, Campus Luebeck, Germany, Berlin, Berlin, Germany
| | - Themistoklis Mikos
- Department of Obstetrics and Gynecology, University Hospital of Schleswig Holstein, Campus Luebeck, Germany, Berlin, Berlin, Germany
| | - Soteris Sommer
- Department of Obstetrics and Gynecology, University Hospital of Schleswig Holstein, Campus Luebeck, Germany, Berlin, Berlin, Germany
| | - Sascha Baum
- Department of Obstetrics and Gynecology, University Hospital of Schleswig Holstein, Campus Luebeck, Germany, Berlin, Berlin, Germany
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Laundry detergent promotes allergic skin inflammation and esophageal eosinophilia in mice. PLoS One 2022; 17:e0268651. [PMID: 35759448 PMCID: PMC9236249 DOI: 10.1371/journal.pone.0268651] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Accepted: 05/04/2022] [Indexed: 11/24/2022] Open
Abstract
The prevalence of allergic diseases is on the rise, yet the environmental factors that contribute to this increase are still being elucidated. Laundry detergent (LD) that contains cytotoxic ingredients including microbial enzymes continuously comes into contact with the skin starting in infancy. An impaired skin barrier has been suggested as a route of allergic sensitization. We hypothesized that exposure of skin to LD damages the skin barrier resulting in systemic sensitization to allergens that enter through the impaired skin barrier. Mouse skin samples exposed in vitro to microbial proteases or LD exhibited physical damage, which was more pronounced in neonatal skin as compared to adult skin. Exposure of the skin to microbial proteases in vitro resulted in an increase in the levels of interleukin (IL)-33 and thymic stromal lymphopoietin (TSLP). BALB/c wild type mice epicutaneously exposed to LD and ovalbumin (OVA) showed an increase in levels of transepidermal water loss, serum OVA-specific immunoglobulin (Ig) G1 and IgE antibodies, and a local increase of Il33, Tslp, Il4 and Il13 compared with LD or OVA alone. Following intranasal challenge with OVA, mice epicutaneously exposed to LD showed an increase in allergen-induced esophageal eosinophilia compared with LD or OVA alone. Collectively, these results suggest that LD may be an important factor that impairs the skin barrier and leads to allergen sensitization in early life, and therefore may have a role in the increase in allergic disease.
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86
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Amin H, Šantl-Temkiv T, Cramer C, Vestergaard DV, Holst GJ, Elholm G, Finster K, Bertelsen RJ, Schlünssen V, Sigsgaard T, Marshall IPG. Cow Farmers’ Homes Host More Diverse Airborne Bacterial Communities Than Pig Farmers’ Homes and Suburban Homes. Front Microbiol 2022; 13:883991. [PMID: 35847077 PMCID: PMC9278274 DOI: 10.3389/fmicb.2022.883991] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Accepted: 05/05/2022] [Indexed: 01/04/2023] Open
Abstract
Living on a farm has been linked to a lower risk of immunoregulatory disorders, such as asthma, allergy, and inflammatory bowel disease. It is hypothesized that a decrease in the diversity and composition of indoor microbial communities is a sensible explanation for the upsurge in immunoregulatory diseases, with airborne bacteria contributing to this protective effect. However, the composition of this potentially beneficial microbial community in various farm and suburban indoor environments is still to be characterized. We collected settled airborne dust from stables and the associated farmers’ homes and from suburban homes using electrostatic dust collectors (EDCs) over a period of 14 days. Then, quantitative PCR (qPCR) was used to assess bacterial abundance. The V3–V4 region of the bacterial 16S rRNA gene was amplified and sequenced using Ilumina MiSeq in order to assess microbial diversity. The Divisive Amplicon Denoising Algorithm (DADA2) algorithm was used for the inference of amplicon sequence variants from amplicon data. Airborne bacteria were significantly more abundant in farmers’ indoor environments than in suburban homes (p < 0.001). Cow farmers’ homes had significantly higher bacterial diversity than pig farmers’ and suburban homes (p < 0.001). Bacterial taxa, such as Firmicutes, Prevotellaceae, Lachnospiraceae, and Lactobacillus were significantly more abundant in farmers’ homes than suburban homes, and the same was true for beneficial intestinal bacterial species, such as Lactobacillus amylovorus, Eubacterium hallii, and Faecalibacterium prausnitzii. Furthermore, we found a higher similarity between bacterial communities in individual farmers’ homes and their associated cow stables than for pig stables. Our findings contribute with important knowledge on bacterial composition, abundance, and diversity in different environments, which is highly valuable in the discussion on how microbial exposure may contribute to the development of immune-mediated diseases in both children and adults.
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Affiliation(s)
- Hesham Amin
- Department of Clinical Science, University of Bergen, Bergen, Norway
- *Correspondence: Hesham Amin,
| | - Tina Šantl-Temkiv
- Section for Microbiology, Department of Biology, Aarhus University, Aarhus, Denmark
| | - Christine Cramer
- Department of Public Health, Environment, Work, and Health, Danish Ramazzini Center, Aarhus University, Aarhus, Denmark
- Department of Occupational Medicine, Danish Ramazzini Center, Aarhus University Hospital, Aarhus, Denmark
| | - Ditte V. Vestergaard
- Section for Microbiology, Department of Biology, Aarhus University, Aarhus, Denmark
- Department of Public Health, Environment, Work, and Health, Danish Ramazzini Center, Aarhus University, Aarhus, Denmark
| | - Gitte J. Holst
- Department of Public Health, Environment, Work, and Health, Danish Ramazzini Center, Aarhus University, Aarhus, Denmark
| | - Grethe Elholm
- Department of Public Health, Environment, Work, and Health, Danish Ramazzini Center, Aarhus University, Aarhus, Denmark
| | - Kai Finster
- Section for Microbiology, Department of Biology, Aarhus University, Aarhus, Denmark
| | | | - Vivi Schlünssen
- Department of Public Health, Environment, Work, and Health, Danish Ramazzini Center, Aarhus University, Aarhus, Denmark
- The National Research Center for the Working Environment, Copenhagen, Denmark
| | - Torben Sigsgaard
- Department of Public Health, Environment, Work, and Health, Danish Ramazzini Center, Aarhus University, Aarhus, Denmark
| | - Ian P. G. Marshall
- Section for Microbiology, Department of Biology, Aarhus University, Aarhus, Denmark
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87
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Ke S, Weiss ST, Liu YY. Rejuvenating the human gut microbiome. Trends Mol Med 2022; 28:619-630. [PMID: 35781423 PMCID: PMC9339459 DOI: 10.1016/j.molmed.2022.05.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Revised: 04/23/2022] [Accepted: 05/03/2022] [Indexed: 12/13/2022]
Abstract
Industrial advances have caused significant loss of diversity in our gut microbiome, potentially increasing our susceptibility to many diseases. Recently, rewilding the human gut microbiome - that is, bringing it back to an ancestral or preindustrial state (e.g., by transplanting stool material from donors in nonindustrial societies) - has been hotly debated from medical, ethical, and evolutionary perspectives. Here we propose an alternative solution: rejuvenating the human gut microbiome by stool banking and autologous fecal microbiota transplantation, that is, collecting the hosts' stool samples at a younger age when they are at optimal health, and cryopreserving the samples in a stool bank for the hosts' own future use. In this article we discuss the motivation, applications, feasibility, and challenges of this solution.
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88
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Chen YT, Hsieh YC, Shen H, Cheng CH, Lee KH, Torng PL. Vaginal birth after cesarean section: Experience from a regional hospital. Taiwan J Obstet Gynecol 2022; 61:422-426. [PMID: 35595432 DOI: 10.1016/j.tjog.2022.03.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/05/2021] [Indexed: 10/18/2022] Open
Abstract
OBJECTIVE Trial of labor after cesarean section (TOLAC) is an option for women with previous cesarean section. However, few women choose this option because of safety concerns. We evaluate the safety and risks associated with TOLAC and the success rate of vaginal birth after cesarean delivery (VBAC). MATERIAL AND METHODS We reviewed all patients with a history of previous cesarean section that underwent elective repeat cesarean section (ERCS) or TOLAC in a regional teaching hospital from Nov, 2013 to May, 2018. Maternal basic clinical information, intrapartum management, postpartum complications, and neonatal outcomes were analyzed. RESULTS 199 pregnant women with a history of at least one previous cesarean section were enrolled. 156 women received ERCS and 43 women (21.6%) underwent TOLAC, with 37 (86.0%) who underwent successful VBAC. The VBAC rate was 18.6%. Higher success rate was found in women with previous vaginal birth than in women without vaginal birth (100% vs. 81.8%). One case (2.3%) in the VBAC group was complicated with uterine rupture and inevitable neonatal death during second stage of labor. The uterus was repaired without maternal complications. In another case, the newborn's condition was complicated with low APGAR score (<7) at birth due to maternal chorioamnionitis. Among indications for previous cesarean section, cephalo-pelvic disproportion (CPD) was associated with TOLAC failure and uterine rupture after VBAC. CONCLUSION VBAC is a feasible and safe option. Modes of delivery should be thoroughly discussed when considering TOLAC for women with history of previous cesarean section due to CPD, considering its association with TOLAC failure in second stage of labor.
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Affiliation(s)
- Yi Ting Chen
- Department of Obstetrics and Gynecology, National Taiwan University Hospital, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Yun-Chiao Hsieh
- Department of Obstetrics and Gynecology, National Taiwan University Hospital, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Hung Shen
- Department of Obstetrics and Gynecology, National Taiwan University Hospital, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Chin-Ho Cheng
- Department of Obstetrics and Gynecology, Hsin-Chu Br, National Taiwan University Hospital, National Taiwan University College of Medicine, Hsin-Chu, Taiwan
| | - Kuang-Han Lee
- Department of Obstetrics and Gynecology, Hsin-Chu Br, National Taiwan University Hospital, National Taiwan University College of Medicine, Hsin-Chu, Taiwan
| | - Pao-Ling Torng
- Department of Obstetrics and Gynecology, National Taiwan University Hospital, National Taiwan University College of Medicine, Taipei, Taiwan; Department of Obstetrics and Gynecology, Hsin-Chu Br, National Taiwan University Hospital, National Taiwan University College of Medicine, Hsin-Chu, Taiwan.
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89
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Camaya I, Donnelly S, O'Brien B. Targeting the PI3K/Akt signaling pathway in pancreatic β-cells to enhance their survival and function: An emerging therapeutic strategy for type 1 diabetes. J Diabetes 2022; 14:247-260. [PMID: 35191175 PMCID: PMC9060113 DOI: 10.1111/1753-0407.13252] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Accepted: 01/11/2022] [Indexed: 12/16/2022] Open
Abstract
Type 1 diabetes (T1D) is an autoimmune disease caused by the destruction of the insulin-producing β-cells within the pancreas. Islet transplantation represents one cure; however, during islet preparation and post transplantation significant amounts of β-cell death occur. Therefore, prevention and cure of T1D is dependent upon the preservation of β-cell function and the prevention of β-cell death. Phosphoinositide 3-kinase (PI3K)/Akt signaling represents a promising therapeutic target for T1D due to its pronounced effects on cellular survival, proliferation, and metabolism. A growing amount of evidence indicates that PI3K/Akt signaling is a critical determinant of β-cell mass and function. Modulation of the PI3K/Akt pathway, directly (via the use of highly specific protein and peptide-based biologics, excretory/secretory products of parasitic worms, and complex constituents of plant extracts) or indirectly (through microRNA interactions) can regulate the β-cell processes to ultimately determine the fate of β-cell mass. An important consideration is the identification of the specific PI3K/Akt pathway modulators that enhance β-cell function and prevent β-cell death without inducing excessive β-cell proliferation, which may carry carcinogenic side effects. Among potential PI3K/Akt pathway agonists, we have identified a novel parasite-derived protein, termed FhHDM-1 (Fasciola hepatica helminth defense molecule 1), which efficiently stimulates the PI3K/Akt pathway in β-cells to enhance function and prevent death without concomitantly inducing proliferation unlike several other identified stimulators of PI3K/Akt signaling . As such, FhHDM-1 will inform the design of biologics aimed at targeting the PI3K/Akt pathway to prevent/ameliorate not only T1D but also T2D, which is now widely recognized as an inflammatory disease characterized by β-cell dysfunction and death. This review will explore the modulation of the PI3K/Akt signaling pathway as a novel strategy to enhance β-cell function and survival.
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Affiliation(s)
- Inah Camaya
- School of Life Sciences, Faculty of ScienceThe University of Technology SydneyUltimoNew South WalesAustralia
| | - Sheila Donnelly
- School of Life Sciences, Faculty of ScienceThe University of Technology SydneyUltimoNew South WalesAustralia
| | - Bronwyn O'Brien
- School of Life Sciences, Faculty of ScienceThe University of Technology SydneyUltimoNew South WalesAustralia
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90
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Kirsten TB, Silva EP, Biondi TF, Rodrigues PS, Cardoso CV, Massironi SMG, Mori CMC, Bondan EF, Bernardi MM. Bate palmas mutant mice as a model of Kabuki syndrome: Higher susceptibility to infections and vocalization impairments? J Neurosci Res 2022; 100:1438-1451. [PMID: 35362120 DOI: 10.1002/jnr.25050] [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: 09/16/2021] [Revised: 02/11/2022] [Accepted: 03/19/2022] [Indexed: 11/11/2022]
Abstract
The recessive mutant mouse bate palmas (bapa) arose from N-ethyl-N-nitrosourea mutagenesis. Previous studies of our group revealed some behavioral impairments and a mutation in the lysine (K)-specific methyltransferase 2D (Kmt2d) gene. Because mutations in the KMT2D gene in humans are mainly responsible for Kabuki syndrome, this study was proposed to validate bapa mice as a model of Kabuki syndrome. Besides other symptoms, Kabuki syndrome is characterized by increased susceptibility to infections and speech impairments, usually diagnosed in the early childhood. Thus, juvenile male and female bapa mice were studied in different developmental stages (prepubertal period and puberty). To induce sickness behavior and to study infection susceptibility responses, lipopolysaccharide (LPS) was used. To study oral communication, ultrasonic vocalizations were evaluated. Behavioral (open-field test) and central (astrocytic glial fibrillary acidic protein [GFAP] and tyrosine hydroxylase [TH]) evaluations were also performed. Control and bapa female mice emitted 31-kHz ultrasounds on prepubertal period when exploring a novel environment, a frequency not yet described for mice, being defined as 31-kHz exploratory vocalizations. Males, LPS, and puberty inhibited these vocalizations. Bapa mice presented increased motor/exploratory behaviors on prepubertal period due to increased striatal TH expression, revealing striatal dopaminergic system hyperactivity. Combining open-field behavior and GFAP expression, bapa mice did not develop LPS tolerance, that is, they remained expressing signs of sickness behavior after LPS challenge, being more susceptible to infectious/inflammatory processes. It was concluded that bapa mice is a robust experimental model of Kabuki syndrome.
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Affiliation(s)
- Thiago B Kirsten
- Psychoneuroimmunology Laboratory, Program in Environmental and Experimental Pathology, Paulista University, São Paulo, Brazil
| | - Ericka P Silva
- Psychoneuroimmunology Laboratory, Program in Environmental and Experimental Pathology, Paulista University, São Paulo, Brazil
| | - Thalles F Biondi
- Psychoneuroimmunology Laboratory, Program in Environmental and Experimental Pathology, Paulista University, São Paulo, Brazil
| | - Paula S Rodrigues
- Psychoneuroimmunology Laboratory, Program in Environmental and Experimental Pathology, Paulista University, São Paulo, Brazil
| | - Carolina V Cardoso
- Psychoneuroimmunology Laboratory, Program in Environmental and Experimental Pathology, Paulista University, São Paulo, Brazil
| | - Silvia M G Massironi
- Department of Immunology, Institute of Biomedical Science, University of São Paulo, São Paulo, Brazil
| | - Claudia M C Mori
- Department of Pathology, School of Veterinary Medicine and Animal Science, University of São Paulo, São Paulo, Brazil
| | - Eduardo F Bondan
- Psychoneuroimmunology Laboratory, Program in Environmental and Experimental Pathology, Paulista University, São Paulo, Brazil
| | - Maria M Bernardi
- Psychoneuroimmunology Laboratory, Program in Environmental and Experimental Pathology, Paulista University, São Paulo, Brazil
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91
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The Role of Airway Epithelial Cell Alarmins in Asthma. Cells 2022; 11:cells11071105. [PMID: 35406669 PMCID: PMC8997824 DOI: 10.3390/cells11071105] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 03/22/2022] [Accepted: 03/23/2022] [Indexed: 02/01/2023] Open
Abstract
The airway epithelium is the first line of defense for the lungs, detecting inhaled environmental threats through pattern recognition receptors expressed transmembrane or intracellularly. Activation of pattern recognition receptors triggers the release of alarmin cytokines IL-25, IL-33, and TSLP. These alarmins are important mediators of inflammation, with receptors widely expressed in structural cells as well as innate and adaptive immune cells. Many of the key effector cells in the allergic cascade also produce alarmins, thereby contributing to the airways disease by driving downstream type 2 inflammatory processes. Randomized controlled clinical trials have demonstrated benefit when blockade of TSLP and IL-33 were added to standard of care medications, suggesting these are important new targets for treatment of asthma. With genome-wide association studies demonstrating associations between single-nucleotide polymorphisms of the TSLP and IL-33 gene and risk of asthma, it will be important to understand which subsets of asthma patients will benefit most from anti-alarmin therapy.
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92
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The Intestinal Microbiota May Be a Potential Theranostic Tool for Personalized Medicine. J Pers Med 2022; 12:jpm12040523. [PMID: 35455639 PMCID: PMC9024566 DOI: 10.3390/jpm12040523] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Revised: 03/09/2022] [Accepted: 03/22/2022] [Indexed: 12/12/2022] Open
Abstract
The human intestine is colonized by a huge number of microorganisms from the moment of birth. This set of microorganisms found throughout the human body, is called the microbiota; the microbiome indicates the totality of genes that the microbiota can express, i.e., its genetic heritage. Thus, microbiota participates in and influences the proper functioning of the organism. The microbiota is unique for each person; it differs in the types of microorganisms it contains, the number of each microorganism, and the ratio between them, but mainly it changes over time and under the influence of many factors. Therefore, the correct functioning of the human body depends not only on the expression of its genes but also on the expression of the genes of the microorganisms it coexists with. This fact makes clear the enormous interest of community science in studying the relationship of the human microbiota with human health and the incidence of disease. The microbiota is like a unique personalized “mold” for each person; it differs quantitatively and qualitatively for the microorganisms it contains together with the relationship between them, and it changes over time and under the influence of many factors. We are attempting to modulate the microbial components in the human intestinal microbiota over time to provide positive feedback on the health of the host, from intestinal diseases to cancer. These interventions to modulate the intestinal microbiota as well as to identify the relative microbiome (genetic analysis) can range from dietary (with adjuvant prebiotics or probiotics) to fecal transplantation. This article researches the recent advances in these strategies by exploring their advantages and limitations. Furthermore, we aim to understand the relationship between intestinal dysbiosis and pathologies, through the research of resident microbiota, that would allow the personalization of the therapeutic antibiotic strategy.
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93
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AbuRuz S, Al-Azayzih A, ZainAlAbdin S, Beiram R, Al Hajjar M. Clinical characteristics and risk factors for mortality among COVID-19 hospitalized patients in UAE: Does ethnic origin have an impact. PLoS One 2022; 17:e0264547. [PMID: 35235580 PMCID: PMC8890645 DOI: 10.1371/journal.pone.0264547] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Accepted: 02/12/2022] [Indexed: 01/08/2023] Open
Abstract
Background The relationship between COVID-19 patient’s clinical characteristics and disease manifestation remains incompletely understood. The impact of ethnicity on mortality of patients with COVID-19 infection is poorly addressed in the literature. Emerging evidence suggests that many risk factors are related to symptoms severity and mortality risk, emphasizing the necessity of fulfilling this knowledge gap that may help reducing mortality from COVID-19 infections through tackling the risk factors. Aims To explore epidemiological and demographic characteristics of hospitalized COVID-19 patients from different ethnic origins living in the UAE, compare them to findings reported across the globe and determine the impact of these characteristics and ethnicity on mortality during hospitalization. Methods A single center, retrospective chart review study of hospitalized COVID-19 patients was conducted in a large COVID-19 referral hospital in UAE. The following outcomes were assessed: patients’ clinical characteristics, disease symptoms and severity, and association of ethnicity and other risk factors on 30-day in hospital mortality. Results A total of 3296 patients were recruited in this study with an average age of 44.3±13.4 years old. Preliminary data analysis indicated that 78.3% (n = 2582) of cases were considered mild. Average duration of hospital stay was 6.0±7.3 days and 4.3% (n = 143) were admitted to ICU. The most frequently reported symptoms were cough (32.6%, n = 1075) and fever (22.2%, n = 731). The 30-day mortality rate during hospitalization was 2.7% (n = 90). Many risk factors were associated with mortality during hospitalization including: age, respiratory rate (RR), creatinine, and C-reactive protein, oxygen saturation (SaO2), hemoglobin, hematocrit, ferritin, creatinine, C-reactive protein, anemia, COPD, Chronic kidney disease, dyslipidemia, Vitamin-D Deficiency, and ethnic origin (p <0.05). Multiple logistic regression analysis showed that higher mortality rates during hospitalization was associated with anemia, chronic obstructive pulmonary disease (COPD), chronic kidney disease, and Middle Eastern origin (p<0.05). Conclusion The results indicated that most COVID-19 cases were mild and morality rate was low compared to worldwide reported mortality. Mortality rate during hospitalization was higher in patients from Middle East origin with preexisting comorbidities especially anemia, COPD, and chronic kidney disease. Due to the relatively small number of mortality cases, other identified risk factors from univariate analysis such as age, respiratory rate, and Vitamin-D (VitD) deficiency should also be taken into consideration. It is crucial to stratify patients on admission based on these risk factors to help decide intensity and type of treatment which, possibly, will reduce the risk of death.
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Affiliation(s)
- Salah AbuRuz
- Department of Pharmacology and Therapeutics, College of Medicine and Health Sciences, The United Arab Emirates University, Al Ain, United Arab Emirates
- Department of Clinical Pharmacy, Faculty of Pharmacy, The University of Jordan, Amman, Jordan
- * E-mail:
| | - Ahmad Al-Azayzih
- Department of Clinical Pharmacy, Faculty of Pharmacy, Jordan University of Science and Technology, Irbid, Jordan
| | - Sham ZainAlAbdin
- Department of Pharmacology and Therapeutics, College of Medicine and Health Sciences, The United Arab Emirates University, Al Ain, United Arab Emirates
| | - Rami Beiram
- Department of Pharmacology and Therapeutics, College of Medicine and Health Sciences, The United Arab Emirates University, Al Ain, United Arab Emirates
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González‐Rodríguez MI, Nurminen N, Kummola L, Laitinen OH, Oikarinen S, Parajuli A, Salomaa T, Mäkelä I, Roslund MI, Sinkkonen A, Hyöty H, Junttila IS. Effect of inactivated nature‐derived microbial composition on mouse immune system. Immun Inflamm Dis 2022; 10:e579. [PMID: 34873877 PMCID: PMC8926502 DOI: 10.1002/iid3.579] [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: 08/23/2021] [Revised: 11/04/2021] [Accepted: 11/22/2021] [Indexed: 11/16/2022] Open
Abstract
Introduction The hygiene hypothesis suggests that decrease in early life infections due to increased societal‐level hygiene standards subjects one to allergic and autoimmune diseases. In this report, we have studied the effect of sterilized forest soil and plant‐based material on mouse immune system and gut microbiome. Methods Inbred C57Bl/6 mice maintained in normal sterile environment were subjected to autoclaved forest soil‐derived powder in their bedding for 1 h a day for 3 weeks. Immune response was measured by immune cell flow cytometry, serum cytokine enzyme‐linked immunoassay (ELISA) and quantitative polymerase chain reaction (qPCR) analysis. Furthermore, the mouse gut microbiome was analyzed by sequencing. Results When compared to control mice, mice treated with soil‐derived powder had decreased level of pro‐inflammatory cytokines namely interleukin (IL)−17F and IL‐21 in the serum. Furthermore, splenocytes from mice treated with soil‐derived powder expressed less IL‐1b, IL‐5, IL‐6, IL‐13, and tumor necrosis factor (TNF) upon cell activation. Gut microbiome appeared to be stabilized by the treatment. Conclusions These results provide insights on the effect of biodiversity on murine immune system in sterile environment. Subjecting mice to soil‐based plant and microbe structures appears to elicit immune response that could be beneficial, for example, in type 2 inflammation‐related diseases, that is, allergic diseases.
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Affiliation(s)
| | - Noora Nurminen
- Faculty of Medicine and Health Technology Tampere University Tampere Finland
| | - Laura Kummola
- Faculty of Medicine and Health Technology Tampere University Tampere Finland
- Department of Clinical Microbiology Fimlab Laboratories Finland
| | - Olli H. Laitinen
- Faculty of Medicine and Health Technology Tampere University Tampere Finland
| | - Sami Oikarinen
- Faculty of Medicine and Health Technology Tampere University Tampere Finland
| | - Anirudra Parajuli
- Department of Medicine, Karolinska Institutet Center for infectious medicine (CIM) Huddinge Sweden
| | - Tanja Salomaa
- Faculty of Medicine and Health Technology Tampere University Tampere Finland
| | - Iida Mäkelä
- Department of Garden Technologies, Horticulture Technologies Natural Resources Institute Finland Finland
| | - Marja I. Roslund
- Ecosystems and Environment Research Programme University of Helsinki Helsinki Finland
| | - Aki Sinkkonen
- Department of Garden Technologies, Horticulture Technologies Natural Resources Institute Finland Finland
| | - Heikki Hyöty
- Faculty of Medicine and Health Technology Tampere University Tampere Finland
- Department of Clinical Microbiology Fimlab Laboratories Finland
| | - Ilkka S. Junttila
- Faculty of Medicine and Health Technology Tampere University Tampere Finland
- Department of Clinical Microbiology Fimlab Laboratories Finland
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95
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Alharris E, Mohammed A, Alghetaa H, Zhou J, Nagarkatti M, Nagarkatti P. The Ability of Resveratrol to Attenuate Ovalbumin-Mediated Allergic Asthma Is Associated With Changes in Microbiota Involving the Gut-Lung Axis, Enhanced Barrier Function and Decreased Inflammation in the Lungs. Front Immunol 2022; 13:805770. [PMID: 35265071 PMCID: PMC8898895 DOI: 10.3389/fimmu.2022.805770] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2021] [Accepted: 01/26/2022] [Indexed: 12/18/2022] Open
Abstract
Asthma is a chronic respiratory disease highly prevalent worldwide. Recent studies have suggested a role for microbiome-associated gut-lung axis in asthma development. In the current study, we investigated if Resveratrol (RES), a plant-based polyphenol, can attenuate ovalbumin (OVA)-induced murine allergic asthma, and if so, the role of microbiome in the gut-lung axis in this process. We found that RES attenuated allergic asthma with significant improvements in pulmonary functions in OVA-exposed mice when tested using plethysmography for frequency (F), mean volume (MV), specific airway resistance (sRaw), and delay time(dT). RES treatment also suppressed inflammatory cytokines in the lungs. RES modulated lung microbiota and caused an abundance of Akkermansia muciniphila accompanied by a reduction of LPS biosynthesis in OVA-treated mice. Furthermore, RES also altered gut microbiota and induced enrichment of Bacteroides acidifaciens significantly in the colon accompanied by an increase in butyric acid concentration in the colonic contents from OVA-treated mice. Additionally, RES caused significant increases in tight junction proteins and decreased mucin (Muc5ac) in the pulmonary epithelium of OVA-treated mice. Our results demonstrated that RES may attenuate asthma by inducing beneficial microbiota in the gut-lung axis and through the promotion of normal barrier functions of the lung.
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Affiliation(s)
| | | | | | | | | | - Prakash Nagarkatti
- Department of Pathology, Microbiology and Immunology, School of Medicine, University of South Carolina, Columbia, SC, United States
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96
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Mkhize‐Kwitshana ZL, Naidoo P, Nkwanyana NM, Mabaso MLH. Concurrent allergy and helminthiasis in underprivileged urban South African adults previously residing in rural areas. Parasite Immunol 2022; 44:e12913. [PMID: 35188279 PMCID: PMC9539504 DOI: 10.1111/pim.12913] [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: 02/19/2021] [Revised: 02/14/2022] [Accepted: 02/16/2022] [Indexed: 11/27/2022]
Abstract
This study investigated whether prior exposure to helminths (Ascaris IgE, Ascaris eggs and Trichuris eggs) either in childhood or in adulthood, and residence in rural and resource‐limited urban areas influence allergy outcomes (asthma, rhinitis, IgE atopy and food allergy) in a South African population. Participants historical and present allergies data were collected through questionnaires and clinical record files. Coproscopy and immunoassays (ImmunoCAPTM Phadiatop, total IgE and allergen‐specific fx3 IgE immunoassays and Ascaris IgE radioallergosorbent [RAST] tests) were used for active helminthiasis and allergy screens respectively. Data were analysed using logistic regression analysis, and models were adjusted for age, gender and locality. High Ascaris IgE was significantly associated with asthma (adjusted odds ratio [aOR] = 2.20, p = .047), IgE atopy (aOR = 18.18, p < .0001) and food allergy (aOR = 14.47, p < .0001). Asthma was significantly less likely among participants with Ascaris eggs (aOR = 0.43, p = .048) and Trichuris eggs (aOR = 0.36, p = .024). The findings of co‐occurrent helminthiasis and allergic disorders in a population that has resided both in rural and peri‐urban informal settlements both oppose and agree with two main notions of the hygiene hypothesis that (i) individuals residing in rural settings with poor sanitation and geohelminth infection are less prone to allergy, and (ii) helminth infections protect against allergy respectively. Further research is warranted.
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Affiliation(s)
- Zilungile L. Mkhize‐Kwitshana
- Department of Medical Microbiology School of Laboratory Medicine and Medical Sciences College of Health Sciences Nelson R. Mandela Medical School Campus University of KwaZulu‐Natal Durban South Africa 4001
- Research Capacity Development Division South African Medical Research Council Tygerberg, Cape Town South Africa 7505
| | - Pragalathan Naidoo
- Department of Medical Microbiology School of Laboratory Medicine and Medical Sciences College of Health Sciences Nelson R. Mandela Medical School Campus University of KwaZulu‐Natal Durban South Africa 4001
- Research Capacity Development Division South African Medical Research Council Tygerberg, Cape Town South Africa 7505
| | - Ntombifikile M. Nkwanyana
- Discipline of Public Health Medicine School of Nursing and Public Health College of Health Sciences Howard College University of KwaZulu Natal Durban South Africa 4041
| | - Musawenkosi L. H. Mabaso
- Human Sciences Research Council (HAST) The Atrium, 5th Floor, 430 Peter Mokaba Street Berea, Durban South Africa 4001
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97
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Locke AV, Larsen JM, Graversen KB, Licht TR, Bahl MI, Bøgh KL. Amoxicillin does not affect the development of cow’s milk allergy in a Brown Norway rat model. Scand J Immunol 2022; 95:e13148. [PMID: 35152475 PMCID: PMC9285443 DOI: 10.1111/sji.13148] [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: 08/28/2021] [Revised: 01/12/2022] [Accepted: 02/04/2022] [Indexed: 11/29/2022]
Abstract
The use of antibiotics as well as changes in the gut microbiota have been linked to development of food allergy in childhood. It remains unknown whether administration of a single clinically relevant antibiotic directly promotes food allergy development when administrated during the sensitisation phase in an experimental animal model. We investigated whether the antibiotic amoxicillin affected gut microbiota composition, development of cow's milk allergy (CMA) and frequencies of allergic effector cells and regulatory T cells in the intestine. Brown Norway rats were given daily oral gavages of amoxicillin for six weeks and whey protein concentrate (WPC) with or without cholera toxin three times per week for the last five weeks. Microbiota composition in faeces and small intestine was analysed by 16S rRNA sequencing. The development of CMA was assessed by WPC‐specific IgE in serum, ear swelling response to WPC and body hypothermia following oral gavage of WPC. Allergic effector cells were analysed by histology, and frequencies of regulatory and activated T cells were analysed by flow cytometry. Amoxicillin administration reduced faecal microbiota diversity, reduced the relative abundance of Firmicutes and increased the abundance of Bacteroidetes and Proteobacteria. Despite these effects, amoxicillin did not affect the development of CMA, nor the frequencies of allergic effector cells or regulatory T cells. Thus, amoxicillin does not carry a direct risk for food allergy development when administrated in an experimental model of allergic sensitisation to WPC via the gut. This finding suggests that confounding factors may better explain the epidemiological link between antibiotic use and food allergy.
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Affiliation(s)
| | | | | | - Tine Rask Licht
- National Food Institute Technical University of Denmark Kgs. Lyngby Denmark
| | - Martin Iain Bahl
- National Food Institute Technical University of Denmark Kgs. Lyngby Denmark
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98
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The Study of Microbe–Host Two-Way Communication. Microorganisms 2022; 10:microorganisms10020408. [PMID: 35208862 PMCID: PMC8875206 DOI: 10.3390/microorganisms10020408] [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: 12/15/2021] [Revised: 02/02/2022] [Accepted: 02/07/2022] [Indexed: 12/22/2022] Open
Abstract
Back-and-forth intercommunication in host–pathogen interactions has long been recognized to play an important role in commensalism and microbial pathogenesis. For centuries, we have studied these microbes in our surroundings, yet many questions about the evolutionary cross-talk between host and microbe remain unanswered. With the recent surge in research interest in the commensal microbiome, basic immunological questions have returned to the fore, such as, how are vast numbers of microbes capable of coexisting within animals and humans while also maintaining a healthy functional immune system? How is the evasion and subversion of the immune system achieved by some microbes but not others? The intricate and important-to-remember two-way interaction and coevolution of host and microbe is the communication network we must tap into as researchers to answer these questions.
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99
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Tang Z, Li S, Shen M, Xiao Y, Su J, Tao J, Wang X, Shan S, Kang X, Wu B, Zou B, Chen X. Association of exposure to artificial light at night with atopic diseases: A cross-sectional study in college students. Int J Hyg Environ Health 2022; 241:113932. [PMID: 35121380 DOI: 10.1016/j.ijheh.2022.113932] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Revised: 01/17/2022] [Accepted: 01/26/2022] [Indexed: 11/18/2022]
Abstract
The impact of artificial light at night (ALAN) exposure on health has become increasingly prominent. However, little is known about the effect of ALAN exposure on atopic diseases. In this study, a cross-sectional analysis of incoming students was conducted in 5 geographically disperse universities which locate in Changsha (south), Wuhan (central), Xiamen (east), Urumchi (west), and Hohhot (north), respectively. All incoming students who consented to participate were recruited, followed by a health examination and a questionnaire survey. Prevalent atopic diseases were diagnosed by clinicians. Mean ALAN (nanoWatts/cm2/sr) during their adolescence was obtained from the remote sensing observed nighttime light data matching with their residence information, which was obtained from survey. Mixed generalized linear models (log-binomial) were used to estimate the associations, in terms of prevalence ratio (PR) with 95% confidence interval (CI). A total of 20106 participants were included in the analysis. Based on previous work, we chose factors including socioeconomic status, behavioural factors, major air pollutants, and air climatic parameters for adjustment. After full adjustment, the PR for atopic diseases was 1.35 (95% CI: 1.27-1.42; P < 0.001). The effect size of ALAN was the largest for asthma (PR = 1.80; 95% CI: 1.48-2.19; P < 0.001), followed by atopic rhinitis (PR = 1.42; 95% CI: 1.33-1.51; P < 0.001), and atopic dermatitis (PR = 1.20; 95% CI: 1.06-1.35; P = 0.003). Subgroup analyses by covariates showed consistent results. This study revealed that exposure to ALAN during adolescence may contribute to a higher risk of atopic diseases in young adulthood.
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Affiliation(s)
- Zhenwei Tang
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China; Hunan Key Laboratory of Skin Cancer and Psoriasis, Hunan Engineering Research Center of Skin Health and Disease, Central South University, Changsha, China
| | - Shenxin Li
- Department of Surveying and Remote Sensing Science, School of Geosciences and Info-physics, Central South University, Changsha, China
| | - Minxue Shen
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China; Hunan Key Laboratory of Skin Cancer and Psoriasis, Hunan Engineering Research Center of Skin Health and Disease, Central South University, Changsha, China; Department of Social Medicine and Health Management, Xiangya School of Public Health, Central South University, Changsha, China.
| | - Yi Xiao
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China; Hunan Key Laboratory of Skin Cancer and Psoriasis, Hunan Engineering Research Center of Skin Health and Disease, Central South University, Changsha, China.
| | - Juan Su
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China; Hunan Key Laboratory of Skin Cancer and Psoriasis, Hunan Engineering Research Center of Skin Health and Disease, Central South University, Changsha, China
| | - Juan Tao
- Department of Dermatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiaohui Wang
- Department of Dermatology, Zhongshan Hospital, Xiamen University, Xiamen, China
| | - Shijun Shan
- Department of Dermatology, Xiang'an Hospital, Xiamen University, Xiamen, China
| | - Xiaojing Kang
- Department of Dermatology, People's Hospital of Xinjiang Uygur Autonomous Region, Urumchi, China
| | - Bin Wu
- Department of Dermatology, The Affiliated People's Hospital of Inner Mongolia Medical University, Hohhot, China
| | - Bin Zou
- Department of Surveying and Remote Sensing Science, School of Geosciences and Info-physics, Central South University, Changsha, China
| | - Xiang Chen
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China; Hunan Key Laboratory of Skin Cancer and Psoriasis, Hunan Engineering Research Center of Skin Health and Disease, Central South University, Changsha, China.
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100
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Selvaraj C, Abhirami R, Vijayakumar R, Alfaiz FA, Singh SK. Immunological insights of selectins in human disease mechanism. ADVANCES IN PROTEIN CHEMISTRY AND STRUCTURAL BIOLOGY 2022; 129:163-188. [PMID: 35305718 DOI: 10.1016/bs.apcsb.2021.11.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Selectin enzymes are glycoproteins and are an important adhesion molecule in the mammalian immune system, especially in the inflammatory response and the healing process of tissues. Selectins play an important role in a variety of biological processes, including the rolling of leukocytes in endothelial cells, a process known as the adhesion cascade. It has recently been discovered and reported that the selectin mechanism plays a role in cancer and thrombosis disease. This process begins with non-covalent interactions-based selectin-ligand binding and the glycans play a role as a connector between cancer cells and the endothelium in this process. The selectin mechanism is critical for the immune system, but it is also involved in disease mechanisms, earning the selectins the nickname "Selectins-The Two Dr. Jekyll and Mr. Hyde Faces". As a result, the drug for selectins should have a multifaceted role and be a dynamic molecule that targets the disease mechanism specifically. This chapter explores the role of selectins in the disease mechanism at the mechanism level that provides the impact for identifying the selectin inhibitors. Overall, this chapter provides the molecular level insights on selectins, their ligands, involvement in normal and disease mechanisms.
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Affiliation(s)
- Chandrabose Selvaraj
- Computer Aided Drug Design and Molecular Modelling Lab, Department of Bioinformatics, Science Block, Alagappa University, Karaikudi, India.
| | - Rajaram Abhirami
- Computer Aided Drug Design and Molecular Modelling Lab, Department of Bioinformatics, Science Block, Alagappa University, Karaikudi, India
| | - Rajendran Vijayakumar
- Department of Biology, College of Science in Zulfi, Majmaah University, Majmaah, Saudi Arabia
| | - Faiz Abdulaziz Alfaiz
- Department of Biology, College of Science in Zulfi, Majmaah University, Majmaah, Saudi Arabia
| | - Sanjeev Kumar Singh
- Computer Aided Drug Design and Molecular Modelling Lab, Department of Bioinformatics, Science Block, Alagappa University, Karaikudi, India.
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