101
|
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.
Collapse
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
| | | |
Collapse
|
102
|
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.
Collapse
|
103
|
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: 11] [Impact Index Per Article: 5.5] [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.
Collapse
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.
| |
Collapse
|
104
|
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.
Collapse
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.
| |
Collapse
|
105
|
Baranova MN, Kudzhaev AM, Mokrushina YA, Babenko VV, Kornienko MA, Malakhova MV, Yudin VG, Rubtsova MP, Zalevsky A, Belozerova OA, Kovalchuk S, Zhuravlev YN, Ilina EN, Gabibov AG, Smirnov IV, Terekhov SS. Deep Functional Profiling of Wild Animal Microbiomes Reveals Probiotic Bacillus pumilus Strains with a Common Biosynthetic Fingerprint. Int J Mol Sci 2022; 23:ijms23031168. [PMID: 35163108 PMCID: PMC8835302 DOI: 10.3390/ijms23031168] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Revised: 01/07/2022] [Accepted: 01/17/2022] [Indexed: 02/06/2023] Open
Abstract
The biodiversity of microorganisms is maintained by intricate nets of interactions between competing species. Impaired functionality of human microbiomes correlates with their reduced biodiversity originating from aseptic environmental conditions and antibiotic use. Microbiomes of wild animals are free of these selective pressures. Microbiota provides a protecting shield from invasion by pathogens in the wild, outcompeting their growth in specific ecological niches. We applied ultrahigh-throughput microfluidic technologies for functional profiling of microbiomes of wild animals, including the skin beetle, Siberian lynx, common raccoon dog, and East Siberian brown bear. Single-cell screening of the most efficient killers of the common human pathogen Staphylococcus aureus resulted in repeated isolation of Bacillus pumilus strains. While isolated strains had different phenotypes, all of them displayed a similar set of biosynthetic gene clusters (BGCs) encoding antibiotic amicoumacin, siderophore bacillibactin, and putative analogs of antimicrobials including bacilysin, surfactin, desferrioxamine, and class IId cyclical bacteriocin. Amicoumacin A (Ami) was identified as a major antibacterial metabolite of these strains mediating their antagonistic activity. Genome mining indicates that Ami BGCs with this architecture subdivide into three distinct families, characteristic of the B. pumilus, B. subtilis, and Paenibacillus species. While Ami itself displays mediocre activity against the majority of Gram-negative bacteria, isolated B. pumilus strains efficiently inhibit the growth of both Gram-positive S. aureus and Gram-negative E. coli in coculture. We believe that the expanded antagonistic activity spectrum of Ami-producing B. pumilus can be attributed to the metabolomic profile predetermined by their biosynthetic fingerprint. Ultrahigh-throughput isolation of natural probiotic strains from wild animal microbiomes, as well as their metabolic reprogramming, opens up a new avenue for pathogen control and microbiome remodeling in the food industry, agriculture, and healthcare.
Collapse
Affiliation(s)
- Margarita N. Baranova
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, 117997 Moscow, Russia; (M.N.B.); (A.M.K.); (Y.A.M.); (A.Z.); (O.A.B.); (S.K.)
| | - Arsen M. Kudzhaev
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, 117997 Moscow, Russia; (M.N.B.); (A.M.K.); (Y.A.M.); (A.Z.); (O.A.B.); (S.K.)
| | - Yuliana A. Mokrushina
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, 117997 Moscow, Russia; (M.N.B.); (A.M.K.); (Y.A.M.); (A.Z.); (O.A.B.); (S.K.)
- Department of Chemistry, Lomonosov Moscow State University, 119991 Moscow, Russia;
| | - Vladislav V. Babenko
- Federal Research and Clinical Centre of Physical-Chemical Medicine of Federal Medical Biological Agency, 119435 Moscow, Russia; (V.V.B.); (M.A.K.); (M.V.M.); (E.N.I.)
| | - Maria A. Kornienko
- Federal Research and Clinical Centre of Physical-Chemical Medicine of Federal Medical Biological Agency, 119435 Moscow, Russia; (V.V.B.); (M.A.K.); (M.V.M.); (E.N.I.)
| | - Maja V. Malakhova
- Federal Research and Clinical Centre of Physical-Chemical Medicine of Federal Medical Biological Agency, 119435 Moscow, Russia; (V.V.B.); (M.A.K.); (M.V.M.); (E.N.I.)
| | - Victor G. Yudin
- Federal Scientific Center of the East Asia Terrestrial Biodiversity, Far-Eastern Branch of Russian Academy of Science, 690022 Vladivostok, Russia; (V.G.Y.); (Y.N.Z.)
| | - Maria P. Rubtsova
- Department of Chemistry, Lomonosov Moscow State University, 119991 Moscow, Russia;
| | - Arthur Zalevsky
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, 117997 Moscow, Russia; (M.N.B.); (A.M.K.); (Y.A.M.); (A.Z.); (O.A.B.); (S.K.)
| | - Olga A. Belozerova
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, 117997 Moscow, Russia; (M.N.B.); (A.M.K.); (Y.A.M.); (A.Z.); (O.A.B.); (S.K.)
| | - Sergey Kovalchuk
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, 117997 Moscow, Russia; (M.N.B.); (A.M.K.); (Y.A.M.); (A.Z.); (O.A.B.); (S.K.)
| | - Yuriy N. Zhuravlev
- Federal Scientific Center of the East Asia Terrestrial Biodiversity, Far-Eastern Branch of Russian Academy of Science, 690022 Vladivostok, Russia; (V.G.Y.); (Y.N.Z.)
| | - Elena N. Ilina
- Federal Research and Clinical Centre of Physical-Chemical Medicine of Federal Medical Biological Agency, 119435 Moscow, Russia; (V.V.B.); (M.A.K.); (M.V.M.); (E.N.I.)
| | - Alexander G. Gabibov
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, 117997 Moscow, Russia; (M.N.B.); (A.M.K.); (Y.A.M.); (A.Z.); (O.A.B.); (S.K.)
- Department of Chemistry, Lomonosov Moscow State University, 119991 Moscow, Russia;
- Correspondence: (A.G.G.); (I.V.S.); (S.S.T.)
| | - Ivan V. Smirnov
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, 117997 Moscow, Russia; (M.N.B.); (A.M.K.); (Y.A.M.); (A.Z.); (O.A.B.); (S.K.)
- Department of Chemistry, Lomonosov Moscow State University, 119991 Moscow, Russia;
- Correspondence: (A.G.G.); (I.V.S.); (S.S.T.)
| | - Stanislav S. Terekhov
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, 117997 Moscow, Russia; (M.N.B.); (A.M.K.); (Y.A.M.); (A.Z.); (O.A.B.); (S.K.)
- Department of Chemistry, Lomonosov Moscow State University, 119991 Moscow, Russia;
- Correspondence: (A.G.G.); (I.V.S.); (S.S.T.)
| |
Collapse
|
106
|
Abdelhamid L, Luo XM. Diet and Hygiene in Modulating Autoimmunity During the Pandemic Era. Front Immunol 2022; 12:749774. [PMID: 35069526 PMCID: PMC8766844 DOI: 10.3389/fimmu.2021.749774] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Accepted: 12/13/2021] [Indexed: 12/11/2022] Open
Abstract
The immune system is an efficiently toned machinery that discriminates between friends and foes for achieving both host defense and homeostasis. Deviation of immune recognition from foreign to self and/or long-lasting inflammatory responses results in the breakdown of tolerance. Meanwhile, educating the immune system and developing immunological memory are crucial for mounting defensive immune responses while protecting against autoimmunity. Still to elucidate is how diverse environmental factors could shape autoimmunity. The emergence of a world pandemic such as SARS-CoV-2 (COVID-19) not only threatens the more vulnerable individuals including those with autoimmune conditions but also promotes an unprecedented shift in people's dietary approaches while urging for extraordinary hygiene measures that likely contribute to the development or exacerbation of autoimmunity. Thus, there is an urgent need to understand how environmental factors modulate systemic autoimmunity to better mitigate the incidence and or severity of COVID-19 among the more vulnerable populations. Here, we discuss the effects of diet (macronutrients and micronutrients) and hygiene (the use of disinfectants) on autoimmunity with a focus on systemic lupus erythematosus.
Collapse
Affiliation(s)
- Leila Abdelhamid
- Department of Biomedical Sciences and Pathobiology, College of Veterinary Medicine, Virginia Tech, Blacksburg, VA, United States
- Department of Microbiology, College of Veterinary Medicine, Alexandria University, Alexandria, Egypt
| | - Xin M. Luo
- Department of Biomedical Sciences and Pathobiology, College of Veterinary Medicine, Virginia Tech, Blacksburg, VA, United States
| |
Collapse
|
107
|
Shahrbaf MA, Hassan M, Vosough M. COVID-19 and hygiene hypothesis: increment of the inflammatory bowel diseases in next generation? Expert Rev Gastroenterol Hepatol 2022; 16:1-3. [PMID: 34919489 DOI: 10.1080/17474124.2022.2020647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Mohammad Amin Shahrbaf
- Department of Regenerative Medicine, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran.,Research and Development Department, Royan Stem Cell Technology Co, Tehran, Iran
| | - Moustapha Hassan
- Experimental Cancer Medicine, Institution for Laboratory Medicine, Karolinska Institute, Stockholm, Sweden.,Clinical Research Center (KFC) and Center for Allogeneic Stem Cell Transplantation (CAST), Karolinska University Hospital Huddinge, Stockholm, Sweden
| | - Massoud Vosough
- Department of Regenerative Medicine, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran.,Experimental Cancer Medicine, Institution for Laboratory Medicine, Karolinska Institute, Stockholm, Sweden.,Clinical Research Center (KFC) and Center for Allogeneic Stem Cell Transplantation (CAST), Karolinska University Hospital Huddinge, Stockholm, Sweden
| |
Collapse
|
108
|
Gudeta AN, Andrén Aronsson C, Binagdie BB, Girma A, Agardh D. Incidence of celiac disease autoimmunity and associations with maternal tuberculosis and pediatric Helicobacter pylori infections in 4-year-old Ethiopian children followed up in an HLA genotyped birth cohort. Front Pediatr 2022; 10:999287. [PMID: 36389354 PMCID: PMC9644195 DOI: 10.3389/fped.2022.999287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Accepted: 09/28/2022] [Indexed: 11/26/2022] Open
Abstract
BACKGROUND The prevalence of celiac disease in the general population is mainly unknown in most of sub-Saharan African countries. The aim of this study was to determine the incidence of celiac disease autoimmunity (CDA) and its associations with latent Mycobacterium tuberculosis (LMTB) and Helicobacter pylori (HP) infections in Ethiopian children aged 4 years in an HLA genotyped cohort study. METHODS Of 1,389 recruited children between 2018 and 2022, 1,046 (75.3%) had been screened at least twice for celiac disease between the ages of 2 and 4 years using a tissue transglutaminase autoantibody (tTGA) ELISA kit. Tissue TGA-positive children were retested using radio-binding assays. CDA was defined as persistent-confirmed tTGA positivity in two consecutive samples. Associations of CDA with LMTB and HP were tested in a subpopulation of 752 children born to mothers who were previously tested for LMTB with IFN-γ and anti-HP antibodies in samples collected at a mean age of 49.3 ± 5.3 months. RESULTS Screening detected 38 out of 1,046 (3.6%) IgA-tTGA-positive children. Ten (1.0%) were confirmed to be positive, with six (0.6%) children diagnosed with CDA. The incidence of CDA at 4 years of age was 1.2 per 1,000 person-years. LMTB was found in 4 of 6 (66.7%) mothers with CDA children compared with 340 of 734 (46.3%) mothers of children without CDA (p = 0.424), while HP was found in 3 of 6 (50.0%) CDA children compared with 315 of 746 (42.2%) children without CDA (p = 0.702). CONCLUSION The incidence of CDA in Ethiopian children is lower than the pooled global incidence. Neither LMTB nor HP infections are associated with CD in Ethiopian children.
Collapse
Affiliation(s)
- Adugna Negussie Gudeta
- Unit of Diabetes and Celiac Disease, Department of Clinical Sciences, Clinical Research Center, Lund University, Malmö, Sweden
| | - Carin Andrén Aronsson
- Unit of Diabetes and Celiac Disease, Department of Clinical Sciences, Clinical Research Center, Lund University, Malmö, Sweden
| | | | - Alemayehu Girma
- Department of Pediatrics, Adama Hospital Medical College, Adama, Ethiopia
| | - Daniel Agardh
- Unit of Diabetes and Celiac Disease, Department of Clinical Sciences, Clinical Research Center, Lund University, Malmö, Sweden
| |
Collapse
|
109
|
Liu Y, Chen M. OUP accepted manuscript. Gastroenterol Rep (Oxf) 2022; 10:goac011. [PMID: 35401986 PMCID: PMC8988210 DOI: 10.1093/gastro/goac011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Revised: 01/26/2022] [Accepted: 02/28/2022] [Indexed: 11/14/2022] Open
Abstract
Microscopic colitis (MC) is a chronic inflammatory disease of the large intestine and as a relatively late recognized condition, its relationship with other disorders of the gastrointestinal tract is gradually being understood and investigated. As a multifactorial disease, MC interacts with inflammatory bowel disease, celiac disease, and irritable bowel syndrome through genetic overlap, immunological factors, and gut microflora. The risk of colorectal cancer was significantly lower in MC, gastrointestinal infections increased the risk of developing MC, and there was an inverse association between Helicobacter pylori infection and MC. A variety of associations are found between MC and other gastrointestinal disorders, where aspects such as genetic effects, resemblance of immunological profiles, and intestinal microecology are potential mechanisms behind the relationships. Clinicians should be aware of these connections to achieve a better understanding and management of MC.
Collapse
Affiliation(s)
- Yuanbin Liu
- Department of Gastroenterology, Renmin Hospital of Wuhan University, Wuhan, Hubei, P. R. China
| | - Mingkai Chen
- Department of Gastroenterology, Renmin Hospital of Wuhan University, Wuhan, Hubei, P. R. China
- Corresponding author. Department of Gastroenterology, Renmin Hospital of Wuhan University, No. 99 Zhang Zhidong Road, Wuhan, Hubei 430000, P. R. China. Tel: +86-13720330580;
| |
Collapse
|
110
|
Wu J, Yu Y, Yao X, Zhang Q, Zhou Q, Tang W, Huang X, Ye C. Visualizing the knowledge domains and research trends of childhood asthma: A scientometric analysis with CiteSpace. Front Pediatr 2022; 10:1019371. [PMID: 36245730 PMCID: PMC9562269 DOI: 10.3389/fped.2022.1019371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Accepted: 09/15/2022] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Asthma is one of the most common chronic diseases in children globally. In recent decades, advances have been made in understanding the mechanism, diagnosis, treatment and management for childhood asthma, but few studies have explored its knowledge structure and future interests comprehensively. OBJECTIVE This scientometric study aims to understand the research status and emerging trends of childhood asthma. METHODS CiteSpace (version 5.8.R3) was used to demonstrate national and institutional collaborations in childhood asthma, analyze research subjects and journal distribution, review research keywords and their clusters, as well as detect research bursts. RESULTS A total of 14,340 publications related to childhood asthma were extracted from Web of Science (core database) during January 2011 to December 2021. The results showed that academic activities of childhood asthma had increased steadily in the last decade. Most of the research was conducted by developed countries while China, as a developing country, was also actively engaged in this field. In addition to subjects of allergy and immunology, both public health aspects and ecological environmental impacts on the disease were emphasized recently in this research field. Keywords clustering analysis indicated that research on asthma management and atopy was constantly updated and became the two major research focuses recently, as a significant shift in research hotspots from etiology and diagnosis to atopic march and asthma management was identified. Subgroup analysis for childhood asthma management and atopy suggested that caregiver- or physician-based education and interventions were emerging directions for asthma management, and that asthma should be carefully studied in the context of atopy, together with other allergic diseases. CONCLUSIONS This study presented a comprehensive and systematic overview of the research status of childhood asthma, provided clues to future research directions, and highlighted two significant research trends of asthma management and atopy in this field.
Collapse
Affiliation(s)
- Jinghua Wu
- Department of Health Management, School of Public Health, Hangzhou Normal University, Hangzhou, China
| | - Yi Yu
- Department of Epidemiology and Biostatistics, School of Public Health, Hangzhou Normal University, Hangzhou, China
| | - Xinmeng Yao
- Department of Epidemiology and Biostatistics, School of Public Health, Hangzhou Normal University, Hangzhou, China
| | - Qinzhun Zhang
- Department of Health Management, School of Public Health, Hangzhou Normal University, Hangzhou, China
| | - Qin Zhou
- Department of Pediatrics, Zhejiang Provincial People's Hospital (Affiliated People's Hospital, Hangzhou Medical College), Hangzhou, China
| | - Weihong Tang
- Department of Gastroenterology, Hangzhou Children's Hospital, Hangzhou, China
| | - Xianglong Huang
- Department of Pediatrics, Xihu District Hospital of Integrated Traditional Chinese and Western Medicine, Hangzhou, China
| | - Chengyin Ye
- Department of Health Management, School of Public Health, Hangzhou Normal University, Hangzhou, China
| |
Collapse
|
111
|
Li M, Wang H, Ni Y, Li C, Xu X, Chang H, Xu Z, Hou M, Ji M. Helminth-induced CD9 + B-cell subset alleviates obesity-associated inflammation via IL-10 production. Int J Parasitol 2021; 52:111-123. [PMID: 34863801 DOI: 10.1016/j.ijpara.2021.08.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Revised: 07/31/2021] [Accepted: 08/02/2021] [Indexed: 01/10/2023]
Abstract
It has been shown that helminth infection can protect against obesity and improve insulin sensitivity to a certain extent, based on epidemiological investigations and animal experiments. Meanwhile, helminths induce a network of regulatory immune cells, including regulatory B cells (Bregs). However, the molecule characteristics and function of these Bregs in improving whole-body metabolic homeostasis remains largely unclear. We established a mouse model with chronic Schistosoma japonicum infection, and compared the differences in B10 cells (CD19+CD5+CD1dhi) and B10- cells (CD19+CD5-CD1d-) from splenic B cells of infected mice using RNA-seq. A unique Breg population was identified. Furthermore, these Bregs were evaluated for their ability to produce inhibitory cytokines in vitro and suppress obesity when adoptively transferred into mice on a high-fat diet. We found that schistosome infection could expand Breg cell populations in mice. CD9 was demonstrated to be a key surface marker for most murine IL-10+ B cells in spleen. CD19+CD9+ B cells produced more IL-10 than conventional B10 cells. Adoptive transfer of CD9+ B cells had the capacity to alleviate obesity-associated inflammation via promoting Tregs, Th2 cells and decreasing Th1, Th17 cells in high-fat diet mice. In conclusion, schistosome infection can induce regulatory CD9+ B cell production, which plays a critical role in the regulation of metabolic disorders through IL-10 production.
Collapse
Affiliation(s)
- Maining Li
- Department of Pathogen Biology, Jiangsu Province Key Laboratory of Modern Pathogen Biology, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Huiquan Wang
- Department of Pathogen Biology, Jiangsu Province Key Laboratory of Modern Pathogen Biology, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Yangyue Ni
- Department of Pathogen Biology, Jiangsu Province Key Laboratory of Modern Pathogen Biology, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Chen Li
- Department of Pathogen Biology, Jiangsu Province Key Laboratory of Modern Pathogen Biology, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Xuejun Xu
- Department of Pathogen Biology, Jiangsu Province Key Laboratory of Modern Pathogen Biology, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Hao Chang
- Department of Pathogen Biology, Jiangsu Province Key Laboratory of Modern Pathogen Biology, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Zhipeng Xu
- Department of Pathogen Biology, Jiangsu Province Key Laboratory of Modern Pathogen Biology, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Min Hou
- Department of Pathogen Biology, Jiangsu Province Key Laboratory of Modern Pathogen Biology, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Minjun Ji
- Department of Pathogen Biology, Jiangsu Province Key Laboratory of Modern Pathogen Biology, Nanjing Medical University, Nanjing, Jiangsu, China.
| |
Collapse
|
112
|
Narla S, Silverberg JI. Dermatology for the internist: optimal diagnosis and management of atopic dermatitis. Ann Med 2021; 53:2165-2177. [PMID: 34787024 PMCID: PMC8604464 DOI: 10.1080/07853890.2021.2004322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Accepted: 11/02/2021] [Indexed: 11/29/2022] Open
Abstract
Internists are front-line health care providers that commonly provide the first encounter to patients for dermatological conditions, especially atopic dermatitis (AD). Internists need to be comfortable with managing mild-moderate AD in their practices. Criteria and guidelines established in dermatology literature are available to help the general practitioner diagnose and treat AD. AD is a systemic disease associated with multiple cutaneous and extra-cutaneous comorbidities that warrant screening by internists, especially mental health conditions. Environmental factors may play a role in the development or worsening of AD; however, there is currently no strong evidence to guide specific population- or clinic-based interventions for their avoidance. While food allergies are common in AD patients, the role of food allergens as an exacerbating factor for AD is controversial. Before starting any dietary modifications, careful evaluation should be performed by an allergist. If the patient is not well-controlled despite adequate topical therapies or is experiencing severe/worsening disease, early referral to dermatology is warranted to rule out confounding diagnoses and/or escalation to systemic therapies. Finally, it is important to recognise the racial disparities present in AD and address these when formulating treatment plans.Key messages:Confounding dermatoses, either instead of or in addition to AD, should be considered in treatment-refractory AD, and the appropriate workup may be initiated while awaiting dermatology referral.AD patients have multiple cutaneous and extra-cutaneous comorbidities that warrant screening by internists, especially mental health conditions.
Collapse
Affiliation(s)
- Shanthi Narla
- Department of Dermatology, St. Luke’s University Health Network, Easton, PA, USA
| | - Jonathan I. Silverberg
- Department of Dermatology, The George Washington University School of Medicine and Health Sciences, Washington, DC, USA
| |
Collapse
|
113
|
Positive QuantiFERON test and the severity of COVID-19 disease: A prospective study. Indian J Tuberc 2021; 68:474-480. [PMID: 34752316 PMCID: PMC7927586 DOI: 10.1016/j.ijtb.2020.12.013] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Accepted: 12/09/2020] [Indexed: 01/06/2023]
Abstract
Background A strong negative correlation is reported between the Bacille Calmette Guerin (BCG) index and COVID-19 mortality. The present study explored if frequent exposure to strong Th1 antigens like Mycobacteria or Salmonella have any effect on the progression of the disease in COVID-19 patients. Methods This prospective comparative study comprised of 3 groups of 20 each of mild or asymptomatic COVID-19 patients (A), severely ill patients (S) and healthy volunteers with a COVID Negative report (H). Results QuantiFERON TB Gold (QFT) which is interferon gamma release assay (IGRA) against Mtb antigen was used to quantify immunity status of patients against the tuberculosis. Group S showed positive QFT in only 15% patients as against 50% QFT positive patients in group A and H. All fourteen patients in group S with QFT negative report died while 5 of six survived patients showed positive QFT report either on initial or repeat testing done at 6 weeks. The sixth survived patient was QFT negative but showed high antibody titre against H antigen (TH) on Widal test. All severely ill group S patients showed huge reduction of IGRA even to the mitogen stimulus thus suggesting gross general unresponsiveness of T cells. Presence of BCG scar showed no correlation with prevalence or progression of the disease. Conclusion Population in an endemic area of tuberculosis and typhoid with good community exposure to these antigen is likely to withstand COVID -19 better and show reduced mortality following it.
Collapse
|
114
|
Mazzucca CB, Raineri D, Cappellano G, Chiocchetti A. How to Tackle the Relationship between Autoimmune Diseases and Diet: Well Begun Is Half-Done. Nutrients 2021; 13:nu13113956. [PMID: 34836210 PMCID: PMC8620243 DOI: 10.3390/nu13113956] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 10/29/2021] [Accepted: 11/03/2021] [Indexed: 02/07/2023] Open
Abstract
Nutrition and immunity are closely related, and the immune system is composed of the most highly energy-consuming cells in the body. Much of the immune system is located within the GI tract, since it must deal with the huge antigenic load introduced with food. Moreover, the incidence of immune-mediated diseases is elevated in Westernized countries, where “transition nutrition” prevails, owing to the shift from traditional dietary patterns towards Westernized patterns. This ecological correlation has fostered increasing attempts to find evidence to support nutritional interventions aimed at managing and reducing the risk of immune-mediated diseases. Recent studies have described the impacts of single nutrients on markers of immune function, but the knowledge currently available is not sufficient to demonstrate the impact of specific dietary patterns on immune-mediated clinical disease endpoints. If nutritional scientists are to conduct quality research, one of many challenges facing them, in studying the complex interactions between the immune system and diet, is to develop improved tools for investigating eating habits in the context of immunomediated diseases.
Collapse
Affiliation(s)
- Camilla Barbero Mazzucca
- Department of Health Sciences, Interdisciplinary Research Center of Autoimmune Diseases—IRCAD, Università del Piemonte Orientale, 28100 Novara, Italy; (C.B.M.); (D.R.); (G.C.)
- Center for Translational Research on Autoimmune and Allergic Disease—CAAD, Università del Piemonte Orientale, 28100 Novara, Italy
| | - Davide Raineri
- Department of Health Sciences, Interdisciplinary Research Center of Autoimmune Diseases—IRCAD, Università del Piemonte Orientale, 28100 Novara, Italy; (C.B.M.); (D.R.); (G.C.)
- Center for Translational Research on Autoimmune and Allergic Disease—CAAD, Università del Piemonte Orientale, 28100 Novara, Italy
| | - Giuseppe Cappellano
- Department of Health Sciences, Interdisciplinary Research Center of Autoimmune Diseases—IRCAD, Università del Piemonte Orientale, 28100 Novara, Italy; (C.B.M.); (D.R.); (G.C.)
- Center for Translational Research on Autoimmune and Allergic Disease—CAAD, Università del Piemonte Orientale, 28100 Novara, Italy
| | - Annalisa Chiocchetti
- Department of Health Sciences, Interdisciplinary Research Center of Autoimmune Diseases—IRCAD, Università del Piemonte Orientale, 28100 Novara, Italy; (C.B.M.); (D.R.); (G.C.)
- Center for Translational Research on Autoimmune and Allergic Disease—CAAD, Università del Piemonte Orientale, 28100 Novara, Italy
- Correspondence:
| |
Collapse
|
115
|
Clark AL, Yan Z, Chen SX, Shi V, Kulkarni DH, Diwan A, Remedi MS. High-fat diet prevents the development of autoimmune diabetes in NOD mice. Diabetes Obes Metab 2021; 23:2455-2465. [PMID: 34212475 PMCID: PMC8490276 DOI: 10.1111/dom.14486] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Revised: 06/21/2021] [Accepted: 06/30/2021] [Indexed: 12/20/2022]
Abstract
AIMS Type 1 diabetes (T1D) has a strong genetic predisposition and requires an environmental trigger to initiate the beta-cell autoimmune destruction. The rate of childhood obesity has risen in parallel to the proportion of T1D, suggesting high-fat diet (HFD)/obesity as potential environmental triggers for autoimmune diabetes. To explore this, non-obese diabetic (NOD) mice were subjected to HFD and monitored for the development of diabetes, insulitis and beta-cell stress. MATERIALS AND METHODS Four-week-old female NOD mice were placed on HFD (HFD-NOD) or standard chow-diet. Blood glucose was monitored weekly up to 40 weeks of age, and glucose- and insulin-tolerance tests performed at 4, 10 and 15 weeks. Pancreata and islets were analysed for insulin secretion, beta-cell mass, inflammation, insulitis and endoplasmic reticulum stress markers. Immune cell levels were measured in islets and spleens. Stool microbiome was analysed at age 4, 8 and 25 weeks. RESULTS At early ages, HFD-NOD mice showed a significant increase in body weight, glucose intolerance and insulin resistance; but paradoxically, they were protected from developing diabetes. This was accompanied by increased insulin secretion and beta-cell mass, decreased insulitis, increased splenic T-regulatory cells and altered stool microbiome. CONCLUSIONS This study shows that HFD protects NOD mice from autoimmune diabetes and preserves beta-cell mass and function through alterations in gut microbiome, increased T-regulatory cells and decreased insulitis. Further studies into the exact mechanism of HFD-mediated prevention of diabetes in NOD mice could potentially lead to interventions to prevent or delay T1D development in humans.
Collapse
Affiliation(s)
- Amy L. Clark
- Department of PediatricsWashington University in St LouisSt LouisMissouriUSA
| | - Zihan Yan
- Department of Internal Medicine, Endocrinology, Metabolism and Lipid research DivisionWashington University in St LouisSt LouisMissouriUSA
| | - Sophia X. Chen
- Department of Internal Medicine, Endocrinology, Metabolism and Lipid research DivisionWashington University in St LouisSt LouisMissouriUSA
| | - Victoria Shi
- Department of Internal Medicine, Endocrinology, Metabolism and Lipid research DivisionWashington University in St LouisSt LouisMissouriUSA
| | - Devesha H. Kulkarni
- Department of Internal MedicineWashington University in St LouisSt LouisMissouriUSA
| | - Abhinav Diwan
- Department of Internal Medicine‐Cardiovascular DivisionWashington University in St LouisSt LouisMissouriUSA
- John Cochran VA Medical Center‐Cardiovascular DivisionSt LouisMissouriUSA
| | - Maria S. Remedi
- Department of Internal Medicine, Endocrinology, Metabolism and Lipid research DivisionWashington University in St LouisSt LouisMissouriUSA
- Department of Cell Biology and PhysiologyWashington University in St LouisSt LouisMissouriUSA
| |
Collapse
|
116
|
Dey S, Eapen MS, Chia C, Gaikwad AV, Wark PAB, Sohal SS. Pathogenesis, clinical features of asthma COPD overlap (ACO), and therapeutic modalities. Am J Physiol Lung Cell Mol Physiol 2021; 322:L64-L83. [PMID: 34668439 DOI: 10.1152/ajplung.00121.2021] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Both asthma and COPD are heterogeneous diseases identified by characteristic symptoms and functional abnormalities, with airway obstruction common in both diseases. Asthma COPD overlap (ACO) does not define a single disease but is a descriptive term for clinical use that includes several overlapping clinical phenotypes of chronic airways disease with different underlying mechanisms. This literature review was initiated to describe published studies, identify gaps in knowledge, and propose future research goals regarding the disease pathology of ACO, especially the airway remodelling changes and inflammation aspects. Airway remodelling occurs in asthma and COPD, but there are differences in the structures affected and the prime anatomic site at which they occur. Reticular basement membrane thickening and cellular infiltration with eosinophils and T-helper (CD4+) lymphocytes are prominent features of asthma. Epithelial squamous metaplasia, airway wall fibrosis, emphysema, bronchoalveolar lavage (BAL) neutrophilia and (CD8+) T-cytotoxic lymphocyte infiltrations in the airway wall are features of COPD. There is no universally accepted definition of ACO, nor are there clearly defined pathological characteristics to differentiate from asthma and COPD. Understanding etiological concepts within the purview of inflammation and airway remodelling changes in ACO would allow better management of these patients.
Collapse
Affiliation(s)
- Surajit Dey
- Respiratory Translational Research Group, Department of Laboratory Medicine, School of Health Sciences, College of Health and Medicine, University of Tasmania, Launceston, Tasmania, Australia
| | - Mathew Suji Eapen
- Respiratory Translational Research Group, Department of Laboratory Medicine, School of Health Sciences, College of Health and Medicine, University of Tasmania, Launceston, Tasmania, Australia
| | - Collin Chia
- Respiratory Translational Research Group, Department of Laboratory Medicine, School of Health Sciences, College of Health and Medicine, University of Tasmania, Launceston, Tasmania, Australia.,Department of Respiratory Medicine, Launceston General Hospital, Launceston, Tasmania, Australia
| | - Archana Vijay Gaikwad
- Respiratory Translational Research Group, Department of Laboratory Medicine, School of Health Sciences, College of Health and Medicine, University of Tasmania, Launceston, Tasmania, Australia
| | - Peter A B Wark
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute, University of Newcastle, New Lambton Heights, Australia.,Department of Respiratory and Sleep Medicine John Hunter Hospital, New Lambton Heights, Australia
| | - Sukhwinder Singh Sohal
- Respiratory Translational Research Group, Department of Laboratory Medicine, School of Health Sciences, College of Health and Medicine, University of Tasmania, Launceston, Tasmania, Australia
| |
Collapse
|
117
|
Rechavi Y, Rechavi G, Rechavi E. Origin of childhood leukaemia: COVID-19 pandemic puts the 'delayed infection' hypothesis to the test. Intern Med J 2021; 51:1761-1762. [PMID: 34664374 PMCID: PMC8653330 DOI: 10.1111/imj.15506] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Accepted: 08/31/2021] [Indexed: 01/05/2023]
Affiliation(s)
- Yoav Rechavi
- Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel
| | - Gideon Rechavi
- Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel.,Cancer Research Center and Wohl Institute for Translational Medicine, Sheba Medical Center, Tel Hashomer, Israel
| | - Erez Rechavi
- Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel.,Edmond and Lily Safra Children's Hospital, Sheba Medical Center, Tel Hashomer, Israel.,The Talpiot Medical Leadership Program, Sheba Medical Center, Tel Hashomer, Israel
| |
Collapse
|
118
|
Quinn LM, Wong FS, Narendran P. Environmental Determinants of Type 1 Diabetes: From Association to Proving Causality. Front Immunol 2021; 12:737964. [PMID: 34659229 PMCID: PMC8518604 DOI: 10.3389/fimmu.2021.737964] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Accepted: 09/08/2021] [Indexed: 12/16/2022] Open
Abstract
The rising incidence of type 1 diabetes (T1D) cannot be ascribed to genetics alone, and causative environmental triggers and drivers must also be contributing. The prospective TEDDY study has provided the greatest contributions in modern time, by addressing misconceptions and refining the search strategy for the future. This review outlines the evidence to date to support the pathways from association to causality, across all stages of T1D (seroconversion to beta cell failure). We focus on infections and vaccinations; infant growth and childhood obesity; the gut microbiome and the lifestyle factors which cultivate it. Of these, the environmental determinants which have the most supporting evidence are enterovirus infection, rapid weight gain in early life, and the microbiome. We provide an infographic illustrating the key environmental determinants in T1D and their likelihood of effect. The next steps are to investigate these environmental triggers, ideally though gold-standard randomised controlled trials and further prospective studies, to help explore public health prevention strategies.
Collapse
Affiliation(s)
- Lauren M Quinn
- Institute of Immunology and Immunotherapy, Research College of Medical and Dental Sciences, University of Birmingham, Birmingham, United Kingdom.,Diabetes Research Group, Division of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, United Kingdom
| | - F Susan Wong
- Department of Diabetes, University Hospitals of Birmingham NHS Foundation Trust, Birmingham, United Kingdom
| | - Parth Narendran
- Institute of Immunology and Immunotherapy, Research College of Medical and Dental Sciences, University of Birmingham, Birmingham, United Kingdom.,Diabetes Research Group, Division of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, United Kingdom
| |
Collapse
|
119
|
Use of helminth therapy for management of ulcerative colitis and Crohn's disease: a systematic review. Parasitology 2021; 149:145-154. [PMID: 34579797 PMCID: PMC10090591 DOI: 10.1017/s0031182021001670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
The incidence rate of inflammatory bowel diseases is increasing in developed countries. As such there is an increasing demand for new therapies. The aim of this systematic review was to investigate whether there is evidence to support the use of helminth therapy for the management of Crohn's disease and ulcerative colitis. Four databases (PubMed, Embase, Medline and the Cochrane Central Register of Control Trials) were searched for primary evidence in the form of clinical studies. Nine studies were suitable for inclusion: five double-blind randomized control trials and four open-label studies. This review divided the results of the studies into two categories: (a) the efficacy of helminth therapy and (b) the safety of helminth therapy. Results regarding the efficacy were mixed and a conclusive answer could not be reached, as there was not enough evidence to rule out a placebo effect. More research is needed, particularly studies with control groups to address the possibility of a placebo effect. Despite this, all nine studies concluded helminth therapy was safe and tolerable, and therefore there is currently no evidence against further exploration of this treatment option.
Collapse
|
120
|
Bajwa H, Baghchechi M, Mujahid M, Kang Dufour MS, Langan SM, Abuabara K. Mixed evidence on the relationship between socioeconomic position and atopic dermatitis: A systematic review. J Am Acad Dermatol 2021; 86:399-405. [PMID: 34547359 DOI: 10.1016/j.jaad.2021.09.018] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Revised: 09/06/2021] [Accepted: 09/10/2021] [Indexed: 12/30/2022]
Abstract
BACKGROUND Lower socioeconomic position usually portends worse health outcomes, but multiple studies have found that atopic dermatitis is associated with higher socioeconomic position. The nature of this relationship remains unclear. OBJECTIVE To systematically review the literature on socioeconomic position and atopic dermatitis and determine whether the association varies by patient or study characteristics. METHODS A literature search was conducted in the PubMed and Embase databases. Individual-level studies addressing the association between all measures of socioeconomic position and the prevalence or incidence of atopic dermatitis were eligible for inclusion. Two independent reviewers screened all texts and extracted all data for qualitative synthesis. RESULTS Eighty-eight studies met the inclusion criteria. Of the 88 studies, 42% (37) found a positive association between atopic dermatitis and socioeconomic position, 15% (13) found a negative association, and 43% (38) found a null or inconsistent association. Studies conducted in Europe, among children, and based on self-report of eczema were more likely to find a positive association with socioeconomic position. LIMITATIONS Studies varied both in terms of the measurement of socioeconomic position and the definition of atopic dermatitis, limiting quantitative synthesis. CONCLUSION The evidence of a positive association between atopic dermatitis and socioeconomic position is not consistent.
Collapse
Affiliation(s)
- Harsimran Bajwa
- School of Public Health, University of California Berkeley, Berkeley, California
| | - Mohsen Baghchechi
- School of Medicine, University of California Riverside, Riverside, California
| | - Mahasin Mujahid
- Division of Epidemiology, School of Public Health, University of California Berkeley, Berkeley, California
| | - Mi-Suk Kang Dufour
- Division of Biostatistics, School of Public Health, University of California Berkeley, Berkeley, California
| | - Sinéad M Langan
- Department of Non-Communicable Disease Epidemiology, London School of Hygiene and Tropical Medicine, London, United Kingdom
| | - Katrina Abuabara
- Division of Epidemiology, Department of Dermatology, University of California San Francisco, San Francisco, California.
| |
Collapse
|
121
|
Tsai YW, Dong JL, Jian YJ, Fu SH, Chien MW, Liu YW, Hsu CY, Sytwu HK. Gut Microbiota-Modulated Metabolomic Profiling Shapes the Etiology and Pathogenesis of Autoimmune Diseases. Microorganisms 2021; 9:microorganisms9091930. [PMID: 34576825 PMCID: PMC8466726 DOI: 10.3390/microorganisms9091930] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2021] [Revised: 09/01/2021] [Accepted: 09/07/2021] [Indexed: 12/13/2022] Open
Abstract
Autoimmunity is a complex and multifaceted process that contributes to widespread functional decline that affects multiple organs and tissues. The pandemic of autoimmune diseases, which are a global health concern, augments in both the prevalence and incidence of autoimmune diseases, including type 1 diabetes, multiple sclerosis, and rheumatoid arthritis. The development of autoimmune diseases is phenotypically associated with gut microbiota-modulated features at the molecular and cellular levels. The etiology and pathogenesis of autoimmune diseases comprise the alterations of immune systems with the innate and adaptive immune cell infiltration into specific organs and the augmented production of proinflammatory cytokines stimulated by commensal microbiota. However, the relative importance and mechanistic interrelationships between the gut microbial community and the immune system during progression of autoimmune diseases are still not well understood. In this review, we describe studies on the profiling of gut microbial signatures for the modulation of immunological homeostasis in multiple inflammatory diseases, elucidate their critical roles in the etiology and pathogenesis of autoimmune diseases, and discuss the implications of these findings for these disorders. Targeting intestinal microbiome and its metabolomic associations with the phenotype of autoimmunity will enable the progress of developing new therapeutic strategies to counteract microorganism-related immune dysfunction in these autoimmune diseases.
Collapse
Affiliation(s)
- Yi-Wen Tsai
- Department of Family Medicine, Chang Gung Memorial Hospital, Keelung, No.222, Maijin Road, Keelung 204, Taiwan;
- College of Medicine, Chang-Gung University, No.259, Wenhua 1st Road, Guishan Dist., Taoyuan City 333, Taiwan
- Graduate Institute of Medical Sciences, National Defense Medical Center, No.161, Section 6, Min Chuan East Road, Neihu, Taipei 114, Taiwan
| | - Jia-Ling Dong
- Department and Graduate Institute of Microbiology and Immunology, National Defense Medical Center, No.161, Section 6, Min Chuan East Road, Neihu, Taipei 114, Taiwan; (J.-L.D.); (Y.-J.J.); (S.-H.F.); (M.-W.C.)
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes, No.35, Keyan Road, Zhunan, Miaoli 350, Taiwan;
| | - Yun-Jie Jian
- Department and Graduate Institute of Microbiology and Immunology, National Defense Medical Center, No.161, Section 6, Min Chuan East Road, Neihu, Taipei 114, Taiwan; (J.-L.D.); (Y.-J.J.); (S.-H.F.); (M.-W.C.)
| | - Shin-Huei Fu
- Department and Graduate Institute of Microbiology and Immunology, National Defense Medical Center, No.161, Section 6, Min Chuan East Road, Neihu, Taipei 114, Taiwan; (J.-L.D.); (Y.-J.J.); (S.-H.F.); (M.-W.C.)
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes, No.35, Keyan Road, Zhunan, Miaoli 350, Taiwan;
| | - Ming-Wei Chien
- Department and Graduate Institute of Microbiology and Immunology, National Defense Medical Center, No.161, Section 6, Min Chuan East Road, Neihu, Taipei 114, Taiwan; (J.-L.D.); (Y.-J.J.); (S.-H.F.); (M.-W.C.)
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes, No.35, Keyan Road, Zhunan, Miaoli 350, Taiwan;
| | - Yu-Wen Liu
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes, No.35, Keyan Road, Zhunan, Miaoli 350, Taiwan;
- Graduate Institute of Life Sciences, National Defense Medical Center, No.161, Section 6, Min Chuan East Road, Neihu, Taipei 114, Taiwan
- Molecular Cell Biology, Taiwan International Graduate Program, Academia Sinica, No.128, Academia Road, Section 2, Nankang, Taipei 115, Taiwan
| | - Chao-Yuan Hsu
- Department and Graduate Institute of Microbiology and Immunology, National Defense Medical Center, No.161, Section 6, Min Chuan East Road, Neihu, Taipei 114, Taiwan; (J.-L.D.); (Y.-J.J.); (S.-H.F.); (M.-W.C.)
- Correspondence: (C.-Y.H.); (H.-K.S.); Tel.: +886-2-8792-3100 (ext. 18535 (C.-Y.H.)/18539 (H.-K.S.)); Fax: +886-2-8792-1774 (H.-K.S.)
| | - Huey-Kang Sytwu
- Graduate Institute of Medical Sciences, National Defense Medical Center, No.161, Section 6, Min Chuan East Road, Neihu, Taipei 114, Taiwan
- Department and Graduate Institute of Microbiology and Immunology, National Defense Medical Center, No.161, Section 6, Min Chuan East Road, Neihu, Taipei 114, Taiwan; (J.-L.D.); (Y.-J.J.); (S.-H.F.); (M.-W.C.)
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes, No.35, Keyan Road, Zhunan, Miaoli 350, Taiwan;
- Graduate Institute of Life Sciences, National Defense Medical Center, No.161, Section 6, Min Chuan East Road, Neihu, Taipei 114, Taiwan
- Correspondence: (C.-Y.H.); (H.-K.S.); Tel.: +886-2-8792-3100 (ext. 18535 (C.-Y.H.)/18539 (H.-K.S.)); Fax: +886-2-8792-1774 (H.-K.S.)
| |
Collapse
|
122
|
Roth R, Safroneeva E, Saner Zilian C, Schreiner P, Rossel JB, Bopp M, Greuter T, Scharl M, Pittet V, Rogler G, Schoepfer A, Straumann A, Biedermann L. Higher educational level in patients with eosinophilic esophagitis: a comparative analysis. Dis Esophagus 2021; 34:6148803. [PMID: 33621323 DOI: 10.1093/dote/doab010] [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: 12/06/2020] [Revised: 01/25/2021] [Accepted: 01/30/2021] [Indexed: 12/11/2022]
Abstract
BACKGROUND Eosinophilic esophagitis is a chronic inflammatory gastrointestinal disease with a high prevalence in younger, atopic males. In our clinical practice, we observed a striking preponderance of patients having a high educational background. The purposes of this study were first to assess the level of education of eosinophilic esophagitis patients and second to compare the findings to patients with inflammatory bowel disease, another chronic immune-mediated condition of the gastrointestinal tract, and with the Swiss general population. METHODS Using a questionnaire, we assessed the educational level of adult patients who have attended Swiss Eosinophilic Esophagitis Clinics in the past. In addition, the educational level of the parents was assessed as well. We calculated the proportions of patients and parents who have obtained a higher educational level. Data from the Swiss Inflammatory Bowel Disease Cohort Study and from the Swiss general population served as confirmation and as comparison, respectively. RESULTS A total of 277 successfully contacted patients (response rate 69.1%; mean age 51.1 years, 73% male) participated. A significantly higher proportion of surveyed eosinophilic esophagitis patients had a high International Standard Classification of Education level (66.8%, P < 0.001) compared with inflammatory bowel disease patients (n = 2534; 34.2%, P < 0.001) and to the Swiss general population (n = 6,066,907; 30.5% P < 0.001). CONCLUSION Our analysis confirms the clinical observation that eosinophilic esophagitis patients have a significantly higher educational level compared with the general population and to patients with other chronic inflammatory diseases of the gastrointestinal tract. As a limitation, this impressive finding remains on a purely descriptive level.
Collapse
Affiliation(s)
- René Roth
- Department of Gastroenterology, University Hospital Zurich (USZ), University of Zurich, Zurich, Switzerland
| | - Ekaterina Safroneeva
- Institute of Social and Preventive Medicine (ISPM), University of Bern, Bern, Switzerland
| | - Catherine Saner Zilian
- Institute of Social and Preventive Medicine (IUMSP), Lausanne University Hospital, Lausanne, Switzerland
| | - Philipp Schreiner
- Department of Gastroenterology, University Hospital Zurich (USZ), University of Zurich, Zurich, Switzerland
| | - Jean-Benoit Rossel
- Institute of Social and Preventive Medicine (IUMSP), Lausanne University Hospital, Lausanne, Switzerland
| | - Matthias Bopp
- Epidemiology, Biostatistics and Prevention Institute, University of Zurich, Zurich, Switzerland
| | - Thomas Greuter
- Department of Gastroenterology, University Hospital Zurich (USZ), University of Zurich, Zurich, Switzerland
| | - Michael Scharl
- Department of Gastroenterology, University Hospital Zurich (USZ), University of Zurich, Zurich, Switzerland
| | - Valérie Pittet
- Institute of Social and Preventive Medicine (IUMSP), Lausanne University Hospital, Lausanne, Switzerland
| | - Gerhard Rogler
- Department of Gastroenterology, University Hospital Zurich (USZ), University of Zurich, Zurich, Switzerland
| | - Alain Schoepfer
- Division of Gastroenterology and Hepatology, Centre Hospitalier Universitaire Vaudois (CHUV), University of Lausanne, Lausanne, Switzerland
| | - Alex Straumann
- Department of Gastroenterology, University Hospital Zurich (USZ), University of Zurich, Zurich, Switzerland
| | - Luc Biedermann
- Department of Gastroenterology, University Hospital Zurich (USZ), University of Zurich, Zurich, Switzerland
| |
Collapse
|
123
|
Cao M, Peng Y, Lu Y, Zou Z, Chen J, Bottino R, Knoll M, Zhang H, Lin S, Pu Z, Sun L, Fang Z, Qiu C, Dai Y, Cai Z, Mou L. Controls of Hyperglycemia Improves Dysregulated Microbiota in Diabetic Mice. Transplantation 2021; 105:1980-1988. [PMID: 34416751 DOI: 10.1097/tp.0000000000003603] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
BACKGROUND Type 1 diabetes (T1DM) is a chronic autoimmune disease characterized by T-cell-mediated destruction of insulin-producing beta cells. Evidence shows that patients with T1DM and mice used in specific diabetic models both exhibit changes in their intestinal microbiota and dysregulated microbiota contributes to the pathogenesis of T1DM. Islet transplantation (Tx) is poised to play an important role in the treatment of T1DM. However, whether treatment of T1DM with islet Tx can rescue dysregulated microbiota remains unclear. METHODS In this study, we induced diabetic C57BL/6 mice with streptozotocin. Then treatment with either insulin administration, or homogenic or allogenic islet Tx was performed to the diabetic mice. Total DNA was isolated from fecal pellets and high-throughput 16S rRNA sequencing was used to investigate intestinal microbiota composition. RESULTS The overall microbial diversity was comparable between control (nonstreptozotocin treated) and diabetic mice. Our results showed the ratio of the Bacteroidetes: Firmicutes between nondiabetic and diabetic mice was significant different. Treatment with islet Tx or insulin partially corrects the dysregulated bacterial composition. At the genus level, Bacteroides, Odoribacter, and Alistipes were associated with the progression and treatment efficacy of the disease, which may be used as a biomarker to predict curative effect of treatment for patients with T1DM. CONCLUSIONS Collectively, our results indicate that diabetic mice show changed microbiota composition and that treatment with insulin and islet Tx can partially correct the dysregulated microbiota.
Collapse
MESH Headings
- Animals
- Bacteria/classification
- Bacteria/genetics
- Bacteria/growth & development
- Biomarkers/blood
- Blood Glucose/drug effects
- Blood Glucose/metabolism
- Diabetes Mellitus, Experimental/blood
- Diabetes Mellitus, Experimental/chemically induced
- Diabetes Mellitus, Experimental/microbiology
- Diabetes Mellitus, Experimental/therapy
- Diabetes Mellitus, Type 1/blood
- Diabetes Mellitus, Type 1/chemically induced
- Diabetes Mellitus, Type 1/microbiology
- Diabetes Mellitus, Type 1/therapy
- Dysbiosis
- Feces/microbiology
- Gastrointestinal Microbiome
- Glycemic Control
- Hypoglycemic Agents/pharmacology
- Insulin/pharmacology
- Islets of Langerhans Transplantation
- Male
- Mice, Inbred BALB C
- Mice, Inbred C57BL
- Ribotyping
- Streptozocin
- Tissue Culture Techniques
- Mice
Collapse
Affiliation(s)
- Mengtao Cao
- Shenzhen Xenotransplantation Medical Engineering Research and Development Center, Institute of Translational Medicine, Shenzhen University Health Science Center, Shenzhen University School of Medicine, First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen, Guangdong, China
| | - Yuanzheng Peng
- Shenzhen Xenotransplantation Medical Engineering Research and Development Center, Institute of Translational Medicine, Shenzhen University Health Science Center, Shenzhen University School of Medicine, First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen, Guangdong, China
| | - Ying Lu
- Shenzhen Xenotransplantation Medical Engineering Research and Development Center, Institute of Translational Medicine, Shenzhen University Health Science Center, Shenzhen University School of Medicine, First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen, Guangdong, China
| | - Zhicheng Zou
- Shenzhen Xenotransplantation Medical Engineering Research and Development Center, Institute of Translational Medicine, Shenzhen University Health Science Center, Shenzhen University School of Medicine, First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen, Guangdong, China
| | - Jiao Chen
- Shenzhen Xenotransplantation Medical Engineering Research and Development Center, Institute of Translational Medicine, Shenzhen University Health Science Center, Shenzhen University School of Medicine, First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen, Guangdong, China
| | - Rita Bottino
- Institute for Cellular Therapeutics, Allegheny-Singer Research Institute, Pittsburgh, PA
| | - Michael Knoll
- Institute for Cellular Therapeutics, Allegheny-Singer Research Institute, Pittsburgh, PA
| | - Hanchen Zhang
- Shenzhen Xenotransplantation Medical Engineering Research and Development Center, Institute of Translational Medicine, Shenzhen University Health Science Center, Shenzhen University School of Medicine, First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen, Guangdong, China
| | - Shan Lin
- Shenzhen Xenotransplantation Medical Engineering Research and Development Center, Institute of Translational Medicine, Shenzhen University Health Science Center, Shenzhen University School of Medicine, First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen, Guangdong, China
| | - Zuhui Pu
- Shenzhen Xenotransplantation Medical Engineering Research and Development Center, Institute of Translational Medicine, Shenzhen University Health Science Center, Shenzhen University School of Medicine, First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen, Guangdong, China
| | - Liang Sun
- Jiangsu Key Laboratory of Xenotransplantation, Nanjing Medical University, Nanjing, China
| | - Zhoubin Fang
- Jiangsu Key Laboratory of Xenotransplantation, Nanjing Medical University, Nanjing, China
| | - Chuanghua Qiu
- Jiangsu Key Laboratory of Xenotransplantation, Nanjing Medical University, Nanjing, China
| | - Yifan Dai
- Clinical Laboratory Department, Shenzhen Second People's Hospital, First Affiliated Hospital of Shenzhen University, Shenzhen, Guangdong, China
| | - Zhiming Cai
- Shenzhen Xenotransplantation Medical Engineering Research and Development Center, Institute of Translational Medicine, Shenzhen University Health Science Center, Shenzhen University School of Medicine, First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen, Guangdong, China
| | - Lisha Mou
- Shenzhen Xenotransplantation Medical Engineering Research and Development Center, Institute of Translational Medicine, Shenzhen University Health Science Center, Shenzhen University School of Medicine, First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen, Guangdong, China
| |
Collapse
|
124
|
International trends in the incidence of brain tumours in children and young-adults and their association with indicators of economic development. Cancer Epidemiol 2021; 74:102006. [PMID: 34418666 DOI: 10.1016/j.canep.2021.102006] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Revised: 06/21/2021] [Accepted: 08/07/2021] [Indexed: 02/04/2023]
Abstract
INTRODUCTION Childhood brain tumours (CBTs) are the second most common type of cancer in individuals aged 0-24 years globally and cause significant morbidity and mortality. CBT aetiology remains poorly understood, however previous studies found higher CBT incidence in high-income countries (HIC) compared to low-middle income countries (LMIC), suggesting a positive relationship between incidence and wealth. MATERIALS & METHODS Aggregated data from Cancer Incidence in Five Continents (CI5) were used to explore CBT epidemiology. Incidence rate ratios (IRR) compared CBT rates between twenty-five geographically and economically diverse countries. The relationship between incidence and economic development was explored using linear regression models and Spearman's rank correlation tests. Trends in CBT incidence between 1978 and 2012 were investigated using average annual percentage changes (AAPC). RESULTS CBT incidence was highest in North America and lowest in Africa. CBT incidence rates increased significantly with increasing GDP per capita (p = 0.006). Gini index was significantly negatively associated with CBT incidence. Incidence decreased with increasing income inequality within countries, indicated by higher Gini indices (p = 0.040). Increasing and decreasing CBT incidence trends were observed within individual countries, although only Italy (p = 0.02) and New Zealand (p < 0.005) experienced statistically significant changes over time. CONCLUSIONS The excess disease found in HIC may be explained by environmental risk factor exposure increasing CBT risk in wealthy populations. However, systematic limitations of substandard cancer detection and reporting in LMIC may mean incidence disparities result from misinformation bias rather than genuine differences in risk factor exposure. Further research is required to comprehensively describe CBT epidemiology and explain study findings.
Collapse
|
125
|
Sabban SS. Computationally grafting an IgE epitope onto a scaffold: Implications for a pan anti-allergy vaccine design. Comput Struct Biotechnol J 2021; 19:4738-4750. [PMID: 34504666 PMCID: PMC8403545 DOI: 10.1016/j.csbj.2021.08.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Revised: 08/04/2021] [Accepted: 08/08/2021] [Indexed: 12/02/2022] Open
Abstract
Allergy is becoming an intensifying disease among the world population, particularly in the developed world. Once allergy develops, sufferers are permanently trapped in a hyper-immune response that makes them sensitive to innocuous substances. The immune pathway concerned with developing allergy is the Th2 immune pathway where the IgE antibody binds to its Fc ∊ RI receptor on Mast and Basophil cells. This paper discusses a protocol that could disrupt the binding between the antibody and its receptor for a potential permanent treatment. Ten proteins were computationally designed to display a human IgE motif very close in proximity to the IgE antibody's Fc ∊ RI receptor's binding site in an effort for these proteins to be used as a vaccine against our own IgE antibody. The motif of interest was the FG loop motif and it was excised and grafted onto a Staphylococcus aureus protein (PDB ID 1YN3), then the motif + scaffold structure had its sequence re-designed around the motif to find an amino acid sequence that would fold to the designed structure correctly. These ten computationally designed proteins showed successful folding when simulated using Rosetta's AbinitioRelax folding simulation and the IgE epitope was clearly displayed in its native three-dimensional structure in all of them. These designed proteins have the potential to be used as a pan anti-allergy vaccine. This work employedin silicobased methods for designing the proteins and did not include any experimental verifications.
Collapse
Affiliation(s)
- Sari S. Sabban
- King Abdulaziz University, Faculty of Science, Department of Biological Sciences, Jeddah, Saudi Arabia
| |
Collapse
|
126
|
Mohta S, Rajput MS, Ahuja V, Makharia GK. Emergence of Celiac disease and Gluten-related disorders in Asia. J Neurogastroenterol Motil 2021; 27:337-346. [PMID: 33967028 PMCID: PMC8266496 DOI: 10.5056/jnm20140] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Revised: 08/13/2020] [Accepted: 04/22/2021] [Indexed: 12/13/2022] Open
Abstract
Celiac disease (CeD) is a systemic, immune-mediated enteropathy, which is triggered by gluten protein in genetically susceptible individuals. CeD, once thought to be an uncommon disease, is now recognized to affect approximately 40-60 million people globally. While CeD is now well reported from a few Asian countries such as India, China, Pakistan, and Middle Eastern countries; it is still believed to be uncommon in the rest of Asia. Gluten-related diseases other than CeD, like non-celiac gluten sensitivity (NCGS) are also emerging globally. CeD and NCGS may present with either intestinal or extra-intestinal symptoms, and a proportion of them have overlapping symptoms with irritable bowel syndrome. Hence, many of them are misdiagnosed as having irritable bowel syndrome in clinical practice. In this review, we discuss the emergence of CeD and other gluten-related disorders, both globally and in Asia, the overlapping manifestations between gluten-related disorders and irritable bowel syndrome, and the challenges associated with diagnosis and management of CeD in Asia.
Collapse
Affiliation(s)
- Srikant Mohta
- Department of Gastroenterology and Human Nutrition, All India Institute of Medical Sciences, New Delhi, India
| | - Mahendra S Rajput
- Department of Gastroenterology and Human Nutrition, All India Institute of Medical Sciences, New Delhi, India
| | - Vineet Ahuja
- Department of Gastroenterology and Human Nutrition, All India Institute of Medical Sciences, New Delhi, India
| | - Govind K Makharia
- Department of Gastroenterology and Human Nutrition, All India Institute of Medical Sciences, New Delhi, India
| |
Collapse
|
127
|
Jafari AA, Keikha M, Mirmoeeni S, Rahimi MT, Jafari R. Parasite-based interventions in systemic lupus erythematosus (SLE): A systematic review. Autoimmun Rev 2021; 20:102896. [PMID: 34274545 DOI: 10.1016/j.autrev.2021.102896] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2021] [Accepted: 05/15/2021] [Indexed: 12/23/2022]
Abstract
BACKGROUND The hygiene hypothesis proposed in 1989 expresses that allergic and infectious diseases are inversely related. Accordingly, it has been demonstrated that infection with some microorganisms such as parasites and helminths can provide a potential immunity and prevent the onset of some life-threatening autoimmune diseases like systemic lupus erythematosus (SLE). Therefore, in this comprehensive study, we systematically reviewed and discussed the use of live parasites or parasitic products in the treatment of mouse models of SLE. METHODS The present systematic review was performed using the following search terms: ("systemic lupus erythematosus" OR "SLE" OR "lupus") AND ("parasite" OR "protozoa" OR "helminths" OR "worms" OR "helminth" OR "worm") in PubMed, Scopus, and Web of Science online databases. We included studies reporting the effect of any intervention using parasites or parasitic-based products on animal models of SLE, which were published until January 20th, 2021 without any language or date restrictions. For each included study, we extracted the authors' names, publication year, type of animal, number of groups, types of intervention, sample size, changes in immunologic cells, auto-Abs, cytokines, and blood cells count, urine analysis, histological analysis of kidney/spleen/liver, outcome and survival. (PROSPERO CRD42020160460). RESULTS A total of 17 eligible articles were included in this systematic review. Sixteen out of the 17 studies reported immunomodulating changes in immunologic cells, cytokines, and/or auto-Abs in mouse models of SLE after using parasitic interventions compared to not-infected or control groups. Moreover, 14 studies reported decreased level of proteinuria and/or favorable kidney, liver, or spleen histological changes. CONCLUSION In conclusion, we have demonstrated that parasites like Hymenolepis microstoma, TPC and ES-62 from Acanthocheilonema viteae, Plasmodium chabaudi, Schistosoma mansoni, and Toxoplasma gondii have favorable immunomodulating effects on SLE outcomes in lupus-prone mice.
Collapse
Affiliation(s)
- Amirhossein Azari Jafari
- Student Research Committee, School of Medicine, Shahroud University of Medical Sciences, Shahroud, Iran
| | - Mojtaba Keikha
- Department of Public Health, Sirjan School of Medical Sciences, Sirjan, Iran
| | | | - Mohammad Taghi Rahimi
- Center for Health Related Social and Behavioral Sciences Research, Shahroud University of Medical Sciences, Shahroud, Iran
| | - Reza Jafari
- School of Medicine, Shahroud University of Medical Sciences, Shahroud, Iran.
| |
Collapse
|
128
|
Hemida MBM, Salin S, Vuori KA, Moore R, Anturaniemi J, Rosendahl S, Barrouin-Melo SM, Hielm-Björkman A. Puppyhood diet as a factor in the development of owner-reported allergy/atopy skin signs in adult dogs in Finland. J Vet Intern Med 2021; 35:2374-2383. [PMID: 34258795 PMCID: PMC8478020 DOI: 10.1111/jvim.16211] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Revised: 06/17/2021] [Accepted: 06/22/2021] [Indexed: 11/28/2022] Open
Abstract
BACKGROUND The increased prevalence of atopic dermatitis (AD) in dogs necessitates research in its disease etiology. OBJECTIVES To explore the association between puppyhood dietary exposures and prevalence of owner-reported allergy/atopy skin signs (AASS) after the age of 1 year. ANIMALS Four thousand and twenty-two dogs were eligible, 1158 cases, and 2864 controls. METHODS This cross-sectional hypothesis-driven observational study was extracted from the DogRisk food frequency questionnaire. Forty-six food items and the ratio of 4 major diet types were tested for their association with AASS incidence later in life. Potential puppyhood dietary risk factors for AASS incidence were specified using binary multivariable logistic regression. The model was adjusted for age and sex. RESULTS Eating raw tripe (odds ratio, 95% confidence intervals OR, 95% CI = 0.36, 0.16-0.79; P = .01), raw organ meats (OR, 95% CI = 0.23, 0.08-0.67; P = .007), human meal leftovers, and fish oil supplements as well as eating more that 20% of the diet as raw and/or <80% of the diet as dry, in general, were associated with significantly lower AASS incidence in adulthood. In contrast, dogs fed fruits (OR, 95% CI = 2.01, 1.31-3.07; P = .001), mixed-oil supplements, dried animal parts, and dogs that drank from puddles showed significantly higher AASS incidence in adulthood. CONCLUSIONS AND CLINICAL IMPORTANCE Puppyhood exposure to raw animal-based foods might have a protective influence on AASS incidence in adulthood, while puppyhood exposure to mixed oils, heat processed foods and sugary fruits might be a potential risk factor of AASS incidence later. The study suggests a causal relationship but does not prove it.
Collapse
Affiliation(s)
- Manal B M Hemida
- Department of Equine and Small Animal Medicine, Faculty of Veterinary Medicine, University of Helsinki, Helsinki, Finland.,Department of Nutrition and Clinical Nutrition, Faculty of Veterinary Medicine, Beni-Suef University, Beni-Suef, Egypt
| | - Siru Salin
- Department of Agricultural Sciences, Faculty of Agriculture Forestry, University of Helsinki, Helsinki, Finland
| | - Kristiina A Vuori
- Department of Equine and Small Animal Medicine, Faculty of Veterinary Medicine, University of Helsinki, Helsinki, Finland
| | - Robin Moore
- Department of Equine and Small Animal Medicine, Faculty of Veterinary Medicine, University of Helsinki, Helsinki, Finland
| | - Johanna Anturaniemi
- Department of Equine and Small Animal Medicine, Faculty of Veterinary Medicine, University of Helsinki, Helsinki, Finland
| | - Sarah Rosendahl
- Department of Equine and Small Animal Medicine, Faculty of Veterinary Medicine, University of Helsinki, Helsinki, Finland
| | - Stella Maria Barrouin-Melo
- Department of Equine and Small Animal Medicine, Faculty of Veterinary Medicine, University of Helsinki, Helsinki, Finland.,Department of Veterinary Anatomy, Pathology and Clinics, School of Veterinary Medicine and Zootechny, Federal University of Bahia, Salvador, Brazil
| | - Anna Hielm-Björkman
- Department of Equine and Small Animal Medicine, Faculty of Veterinary Medicine, University of Helsinki, Helsinki, Finland
| |
Collapse
|
129
|
Seité S, Taieb C, Pham-Thi N, Barbaud A. Allergy Prevalence in France and Skin Impact - Epidemiological Survey of a Representative Sample of French Adults. Clin Cosmet Investig Dermatol 2021; 14:901-907. [PMID: 34285536 PMCID: PMC8286784 DOI: 10.2147/ccid.s307345] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Accepted: 07/02/2021] [Indexed: 12/29/2022]
Abstract
Background Increased allergy frequency may have a significant impact on the skin, one of the largest targeted organs for allergic and immunological responses. Methods An online survey of 2036 adults as a representative sample of the French general population was conducted to evaluate the prevalence of self-reported allergies, the populations who report allergies and the skin conditions related to allergies. Results In general, 20.2% of French adults (average age 45 ± 15.8 years) reported allergies. These allergies were respiratory allergies (55.3%), skin allergies (48.8%) and food allergies (27.9%), and 78.9% indicated that their reported allergies were diagnosed by a doctor. In addition, 53.2% of individuals reporting an allergy also indicated that they experienced associated skin reactions. In comparison to those who did not report an allergy, these individuals were 1.5 to 4 times more likely to have a skin disease and 3 times more likely to have sensitive skin or skin reactions when using skincare products. Conclusion It is estimated that over 10 million French adults have allergies. These data will help increase awareness among the allergic population and healthcare professionals about the burden associated with allergies and the need for management to reduce their health impact.
Collapse
Affiliation(s)
- Sophie Seité
- La Roche-Posay Dermatological Laboratories, Levallois-Perret, France
| | - Charles Taieb
- European Market Maintenance Assessment, Fontenay-sous-Bois, France
| | - Nhân Pham-Thi
- Ecole Polytechnique, Economics, Palaiseau, France.,Institut Pasteur Paris, Allergology, Paris, France
| | - Annick Barbaud
- Dermatology and Allergy Department, Tenon Hospital, Medicine Sorbonne University, Paris, France.,Assistance Publique-Hôpitaux de Paris, Paris, France
| |
Collapse
|
130
|
A Childhood Farm Environment Protects from Allergic Sensitization until Middle Age but Not from New-Onset Sensitization in Adulthood: A 15 Year Longitudinal Study. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18137078. [PMID: 34281015 PMCID: PMC8297149 DOI: 10.3390/ijerph18137078] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Revised: 06/22/2021] [Accepted: 06/28/2021] [Indexed: 01/30/2023]
Abstract
Data are insufficient on the protective effect of a farm environment in childhood regarding sensitization in middle age and new-onset sensitization in adulthood. A skin prick test (SPT) and questionnaire data from the Northern Finland Birth Cohort 1966 study (NFBC66) were used to investigate sensitization at age 46 years related to childhood living environment. A subpopulation of 3409 participants was analyzed to study factors related to new-onset sensitization between ages of 31 and 46 years. Data on complete SPTs were available for 5373 cohort members at age 46. Professional farming by parents (odds ratio (OR) 0.54; 95% confidence interval (CI) 0.43–0.68) and keeping of farm animals (OR 0.53; 95% CI 0.43–0.66) in infancy were associated with a lower risk of sensitization at age 46. Sensitization (OR 0.58; 95% CI 0.47–0.72) and polysensitization (OR 0.43; 95% CI 0.32–0.57) were less common in those who lived in a rural area in infancy compared to a city area. The childhood living environment had no effect on new-onset sensitization between ages 31 and 46. We conclude that living on a farm or in a rural environment in childhood had a protective effect on sensitization even in middle age, but these factors did not protect from new-onset sensitization in adults.
Collapse
|
131
|
Jakubczyk D, Górska S. Impact of Probiotic Bacteria on Respiratory Allergy Disorders. Front Microbiol 2021; 12:688137. [PMID: 34234762 PMCID: PMC8256161 DOI: 10.3389/fmicb.2021.688137] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Accepted: 05/28/2021] [Indexed: 12/22/2022] Open
Abstract
Respiratory allergy is a common disease with an increased prevalence worldwide. The effective remedy is still unknown, and a new therapeutic approach is highly desirable. The review elaborates the influence of probiotic bacteria on respiratory allergy prevention and treatment with particular emphasis on the impact of the current methods of their administration – oral and intranasal. The background of the respiratory allergy is complex thus, we focused on the usefulness of probiotics in the alleviation of different allergy factors, in particular involved in pathomechanism, local hypersensitive evidence and the importance of epithelial barrier. In this review, we have shown that (1) probiotic strains may vary in modulatory potential in respiratory allergy, (2) probiotic bacteria are beneficial in oral and intranasal administration, (3) recombinant probiotic bacteria can modulate the course of respiratory allergy.
Collapse
Affiliation(s)
- Dominika Jakubczyk
- Laboratory of Microbiome Immunobiology, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Wrocław, Poland
| | - Sabina Górska
- Laboratory of Microbiome Immunobiology, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Wrocław, Poland
| |
Collapse
|
132
|
Jakhmola S, Upadhyay A, Jain K, Mishra A, Jha HC. Herpesviruses and the hidden links to Multiple Sclerosis neuropathology. J Neuroimmunol 2021; 358:577636. [PMID: 34174587 DOI: 10.1016/j.jneuroim.2021.577636] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Revised: 06/01/2021] [Accepted: 06/17/2021] [Indexed: 01/08/2023]
Abstract
Herpesviruses like Epstein-Barr virus, human herpesvirus (HHV)-6, HHV-1, VZV, and human endogenous retroviruses, have an age-old clinical association with multiple sclerosis (MS). MS is an autoimmune disease of the nervous system wherein the myelin sheath deteriorates. The most popular mode of virus mediated immune system manipulation is molecular mimicry. Numerous herpesvirus antigens are similar to myelin proteins. Other mechanisms described here include the activity of cytokines and autoantibodies produced by the autoreactive T and B cells, respectively, viral déjà vu, epitope spreading, CD46 receptor engagement, impaired remyelination etc. Overall, this review addresses the host-parasite association of viruses with MS.
Collapse
Affiliation(s)
- Shweta Jakhmola
- Infection Bioengineering Group, Department of Biosciences and Biomedical Engineering, Indian Institute of Technology Indore, India
| | - Arun Upadhyay
- Cellular and Molecular Neurobiology Unit, Indian Institute of Technology, Jodhpur, India
| | - Khushboo Jain
- Infection Bioengineering Group, Department of Biosciences and Biomedical Engineering, Indian Institute of Technology Indore, India
| | - Amit Mishra
- Cellular and Molecular Neurobiology Unit, Indian Institute of Technology, Jodhpur, India
| | - Hem Chandra Jha
- Infection Bioengineering Group, Department of Biosciences and Biomedical Engineering, Indian Institute of Technology Indore, India.
| |
Collapse
|
133
|
Kwarteng A, Sylverken A, Antwi-Berko D, Ahuno ST, Asiedu SO. Prospects of Immunology Education and Research in Developing Countries. Front Public Health 2021; 9:652439. [PMID: 34169055 PMCID: PMC8217613 DOI: 10.3389/fpubh.2021.652439] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Accepted: 05/10/2021] [Indexed: 11/25/2022] Open
Abstract
The burden of infectious disease in developing countries is substantially higher than in developed nations. Reasons include poor health care infrastructure and deficiencies in public understanding of infectious disease mechanisms and disease prevention. While immunology education and research have an enviable role in understanding host-pathogen interactions, training programs in immunology remain fully integrated into the curricula of higher institutions, and by extension, to high schools of developing nations. Therefore, we discussed the need to make major investments in immunology research and research training into all natural sciences teaching curricula, particularly in developing countries.
Collapse
Affiliation(s)
- Alexander Kwarteng
- Department of Biochemistry and Biotechnology, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana.,Kumasi Centre for Collaborative Research in Tropical Medicine, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Augustina Sylverken
- Kumasi Centre for Collaborative Research in Tropical Medicine, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana.,Department of Theoretical and Applied Biology, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Daniel Antwi-Berko
- Department of Basic and Applied Biology, University of Energy and Natural Resources (UENR), Sunyani, Ghana
| | - Samuel Terkper Ahuno
- Department of Biochemistry and Biotechnology, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana.,Kumasi Centre for Collaborative Research in Tropical Medicine, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Samuel Opoku Asiedu
- Kumasi Centre for Collaborative Research in Tropical Medicine, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| |
Collapse
|
134
|
Li Z, Zhang W, Luo F, Li J, Yang W, Zhu B, Wu Q, Wang X, Sun C, Xie Y, Xu B, Wang Z, Qian F, Chen J, Wan Y, Hu W. Allergen-Specific Treg Cells Upregulated by Lung-Stage S. japonicum Infection Alleviates Allergic Airway Inflammation. Front Cell Dev Biol 2021; 9:678377. [PMID: 34169075 PMCID: PMC8217774 DOI: 10.3389/fcell.2021.678377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Accepted: 04/22/2021] [Indexed: 11/24/2022] Open
Abstract
Schistosoma japonicum infection showed protective effects against allergic airway inflammation (AAI). However, controversial findings exist especially regarding the timing of the helminth infection and the underlying mechanisms. Most previous studies focused on understanding the preventive effect of S. japonicum infection on asthma (infection before allergen sensitization), whereas the protective effects of S. japonicum infection (allergen sensitization before infection) on asthma were rarely investigated. In this study, we investigated the protective effects of S. japonicum infection on AAI using a mouse model of OVA-induced asthma. To explore how the timing of S. japonicum infection influences its protective effect, the mice were percutaneously infected with cercaria of S. japonicum at either 1 day (infection at lung-stage during AAI) or 14 days before ovalbumin (OVA) challenge (infection at post–lung-stage during AAI). We found that lung-stage S. japonicum infection significantly ameliorated OVA-induced AAI, whereas post–lung-stage infection did not. Mechanistically, lung-stage S. japonicum infection significantly upregulated the frequency of regulatory T cells (Treg cells), especially OVA-specific Treg cells, in lung tissue, which negatively correlated with the level of OVA-specific immunoglobulin E (IgE). Depletion of Treg cells in vivo partially counteracted the protective effect of lung-stage S. japonicum infection on asthma. Furthermore, transcriptomic analysis of lung tissue showed that lung-stage S. japonicum infection during AAI shaped the microenvironment to favor Treg induction. In conclusion, our data showed that lung-stage S. japonicum infection could relieve OVA-induced asthma in a mouse model. The protective effect was mediated by the upregulated OVA-specific Treg cells, which suppressed IgE production. Our results may facilitate the discovery of a novel therapy for AAI.
Collapse
Affiliation(s)
- Zhidan Li
- NHC Key Laboratory of Parasite and Vector Biology (National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention), Shanghai, China
| | - Wei Zhang
- State Key Laboratory of Genetic Engineering, Ministry of Education Key Laboratory of Contemporary Anthropology, Human Phenome Institute, Fudan University, Shanghai, China.,Ministry of Education Key Laboratory for Biodiversity Science and Ecological Engineering, Department of Microbiology and Microbial Engineering, School of Life Sciences, Fudan University, Shanghai, China
| | - Fang Luo
- State Key Laboratory of Genetic Engineering, Ministry of Education Key Laboratory of Contemporary Anthropology, Human Phenome Institute, Fudan University, Shanghai, China.,Ministry of Education Key Laboratory for Biodiversity Science and Ecological Engineering, Department of Microbiology and Microbial Engineering, School of Life Sciences, Fudan University, Shanghai, China
| | - Jian Li
- State Key Laboratory of Genetic Engineering, Ministry of Education Key Laboratory of Contemporary Anthropology, Human Phenome Institute, Fudan University, Shanghai, China.,Ministry of Education Key Laboratory for Biodiversity Science and Ecological Engineering, Department of Microbiology and Microbial Engineering, School of Life Sciences, Fudan University, Shanghai, China.,Department of Infectious Diseases, Huashan Hospital, Fudan University, Shanghai, China
| | - Wenbin Yang
- State Key Laboratory of Genetic Engineering, Ministry of Education Key Laboratory of Contemporary Anthropology, Human Phenome Institute, Fudan University, Shanghai, China.,Ministry of Education Key Laboratory for Biodiversity Science and Ecological Engineering, Department of Microbiology and Microbial Engineering, School of Life Sciences, Fudan University, Shanghai, China
| | - Bingkuan Zhu
- State Key Laboratory of Genetic Engineering, Ministry of Education Key Laboratory of Contemporary Anthropology, Human Phenome Institute, Fudan University, Shanghai, China.,Ministry of Education Key Laboratory for Biodiversity Science and Ecological Engineering, Department of Microbiology and Microbial Engineering, School of Life Sciences, Fudan University, Shanghai, China
| | - Qunfeng Wu
- State Key Laboratory of Genetic Engineering, Ministry of Education Key Laboratory of Contemporary Anthropology, Human Phenome Institute, Fudan University, Shanghai, China.,Ministry of Education Key Laboratory for Biodiversity Science and Ecological Engineering, Department of Microbiology and Microbial Engineering, School of Life Sciences, Fudan University, Shanghai, China
| | - Xiaoling Wang
- NHC Key Laboratory of Parasite and Vector Biology (National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention), Shanghai, China
| | - Chengsong Sun
- State Key Laboratory of Genetic Engineering, Ministry of Education Key Laboratory of Contemporary Anthropology, Human Phenome Institute, Fudan University, Shanghai, China.,Ministry of Education Key Laboratory for Biodiversity Science and Ecological Engineering, Department of Microbiology and Microbial Engineering, School of Life Sciences, Fudan University, Shanghai, China
| | - Yuxiang Xie
- State Key Laboratory of Genetic Engineering, Ministry of Education Key Laboratory of Contemporary Anthropology, Human Phenome Institute, Fudan University, Shanghai, China.,Ministry of Education Key Laboratory for Biodiversity Science and Ecological Engineering, Department of Microbiology and Microbial Engineering, School of Life Sciences, Fudan University, Shanghai, China
| | - Bin Xu
- NHC Key Laboratory of Parasite and Vector Biology (National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention), Shanghai, China
| | - Zhaojun Wang
- Department of Immunology and Microbiology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Feng Qian
- State Key Laboratory of Genetic Engineering, Ministry of Education Key Laboratory of Contemporary Anthropology, Human Phenome Institute, Fudan University, Shanghai, China.,Ministry of Education Key Laboratory for Biodiversity Science and Ecological Engineering, Department of Microbiology and Microbial Engineering, School of Life Sciences, Fudan University, Shanghai, China
| | - Jiaxu Chen
- NHC Key Laboratory of Parasite and Vector Biology (National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention), Shanghai, China
| | - Yanmin Wan
- Department of Infectious Diseases, Huashan Hospital, Fudan University, Shanghai, China.,Department of Radiology, Shanghai Public Health Clinical Center, Fudan University, Shanghai, China
| | - Wei Hu
- NHC Key Laboratory of Parasite and Vector Biology (National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention), Shanghai, China.,State Key Laboratory of Genetic Engineering, Ministry of Education Key Laboratory of Contemporary Anthropology, Human Phenome Institute, Fudan University, Shanghai, China.,Ministry of Education Key Laboratory for Biodiversity Science and Ecological Engineering, Department of Microbiology and Microbial Engineering, School of Life Sciences, Fudan University, Shanghai, China.,Department of Infectious Diseases, Huashan Hospital, Fudan University, Shanghai, China
| |
Collapse
|
135
|
Schmidt AD, de Guzman Strong C. Current understanding of epigenetics in atopic dermatitis. Exp Dermatol 2021; 30:1150-1155. [PMID: 34008901 PMCID: PMC8361700 DOI: 10.1111/exd.14392] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Revised: 04/19/2021] [Accepted: 05/09/2021] [Indexed: 02/06/2023]
Abstract
Atopic dermatitis (AD) is an inflammatory skin disorder affecting up to 20% of the paediatric population worldwide. AD patients commonly exhibit dry skin and pruritus and are at a higher risk for developing asthma as well as allergic rhinitis. Filaggrin loss‐of‐function variants are the most widely replicated genetic risk factor among >40 genes associated with AD susceptibility. The prevalence of AD has tripled in the past 30 years in industrial countries around the world. This urgent public health issue has prompted the field to more thoroughly investigate the mechanisms that underlie AD pathogenesis amidst environmental exposures. Epigenetics is the study of heritable, yet reversible, modifications to the genome that affect gene expression. The past decade has seen an emergence of exciting studies identifying a role for epigenetic regulation associated with AD and at the interface of environmental factors. Such epigenetic studies have been empowered by sequencing technologies and human genome variation and epigenome maps. miRNAs that post‐transcriptionally modify gene expression and circRNAs have also been discovered to be associated with AD. Here, we review our current understanding of epigenetics associated with atopic dermatitis. We discuss studies identifying distinct DNA methylation changes in keratinocytes and T cells, eQTLs as DNA methylation switches that impact gene expression, and histone modification changes associated with AD‐related microbial dysbiosis. We further highlight the need for integrative and collaborative analyses to elucidate the impact of these epigenetic findings as potential drivers for AD pathogenesis and the translation of this new knowledge to develop newer targeted treatments.
Collapse
Affiliation(s)
- Alina D Schmidt
- Division of Dermatology, Department of Medicine, Washington University in St. Louis School of Medicine, St. Louis, MO, USA.,Center for Pharmacogenomics, Department of Medicine, Washington University in St. Louis School of Medicine, St. Louis, MO, USA.,Center for the Study of Itch & Sensory Disorders, Washington University in St. Louis School of Medicine, St. Louis, MO, USA
| | - Cristina de Guzman Strong
- Division of Dermatology, Department of Medicine, Washington University in St. Louis School of Medicine, St. Louis, MO, USA.,Center for Pharmacogenomics, Department of Medicine, Washington University in St. Louis School of Medicine, St. Louis, MO, USA.,Center for the Study of Itch & Sensory Disorders, Washington University in St. Louis School of Medicine, St. Louis, MO, USA
| |
Collapse
|
136
|
Robinson LA. Dog Ownership Is the Best Preventive 'Medicine' for Patients. Am J Med 2021; 134:710-712. [PMID: 33621539 DOI: 10.1016/j.amjmed.2021.01.033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2021] [Accepted: 01/24/2021] [Indexed: 12/01/2022]
Affiliation(s)
- Lary A Robinson
- Division of Thoracic Oncology, Moffitt Cancer Center, Tampa, Fla.
| |
Collapse
|
137
|
Rueter K, Jones AP, Siafarikas A, Chivers P, Prescott SL, Palmer DJ. The Influence of Sunlight Exposure and Sun Protecting Behaviours on Allergic Outcomes in Early Childhood. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18105429. [PMID: 34069576 PMCID: PMC8161152 DOI: 10.3390/ijerph18105429] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 05/11/2021] [Accepted: 05/16/2021] [Indexed: 01/22/2023]
Abstract
The dramatic rise in allergic disease has occurred in tandem with recent environmental changes and increasing indoor lifestyle culture. While multifactorial, one consistent allergy risk factor has been reduced sunlight exposure. However, vitamin D supplementation studies have been disappointing in preventing allergy, raising possible independent effects of ultraviolet (UV) light exposure. The aim of this study was to examine whether UV light exposure influences the development of allergic disease in early childhood. Direct sunlight exposure (290-380 nm) in early infancy was measured via UV dosimeters. Outdoor exposure, sun protective behaviours, and allergy outcomes were assessed over the first 2.5 years of life with clinical assessment appointments at 3, 6, 12 and 30 months of age. Children with eczema had less (p = 0.038) direct UV light exposure between 0-3 months of age (median (IQR) 747 (473-1439) J/m2) than children without eczema (median (IQR) 1204 (1717-1843) J/m2); and less outdoor exposure time (7 min/day) between 11 a.m. and 3 p.m. compared to children without eczema (20 min/day, p = 0.011). These associations were seen independent of vitamin D status, and after adjusting for other potential confounders. Whilst we could not find any associations between direct UV light exposure and other allergic disease outcomes, exposure to UV light appears to be beneficial in reducing the risk of eczema development in early childhood. Further research is required to determine optimal levels of UV light exposure while balancing the potential risks.
Collapse
Affiliation(s)
- Kristina Rueter
- School of Medicine, The University of Western Australia, 35 Stirling Highway, Crawley 6009, Australia; (K.R.); (A.S.); (S.L.P.)
- Department of Immunology and Dermatology, Perth Children’s Hospital, 15 Hospital Avenue, Nedlands 6009, Australia
- inVIVO Planetary Health, Group of the Worldwide Universities Network (WUN), 6010 Park Ave, West New York, NJ 07093, USA
| | - Anderson P. Jones
- Telethon Kids Institute, University of Western Australia, 15 Hospital Avenue, Nedlands 6009, Australia;
| | - Aris Siafarikas
- School of Medicine, The University of Western Australia, 35 Stirling Highway, Crawley 6009, Australia; (K.R.); (A.S.); (S.L.P.)
- Telethon Kids Institute, University of Western Australia, 15 Hospital Avenue, Nedlands 6009, Australia;
- Department of Endocrinology, Perth Children’s Hospital, 15 Hospital Avenue, Nedlands 6009, Australia
- Institute for Health Research, The University of Notre Dame Australia, Perth 6160, Australia;
| | - Paola Chivers
- Institute for Health Research, The University of Notre Dame Australia, Perth 6160, Australia;
- School of Medical and Health Science, Edith Cowan University, Perth 6027, Australia
| | - Susan L. Prescott
- School of Medicine, The University of Western Australia, 35 Stirling Highway, Crawley 6009, Australia; (K.R.); (A.S.); (S.L.P.)
- Department of Immunology and Dermatology, Perth Children’s Hospital, 15 Hospital Avenue, Nedlands 6009, Australia
- inVIVO Planetary Health, Group of the Worldwide Universities Network (WUN), 6010 Park Ave, West New York, NJ 07093, USA
- The ORIGINS Project, Telethon Kids Institute and Division of Paediatrics, University of Western Australia, 15 Hospital Avenue, Nedlands 6009, Australia
| | - Debra J. Palmer
- School of Medicine, The University of Western Australia, 35 Stirling Highway, Crawley 6009, Australia; (K.R.); (A.S.); (S.L.P.)
- Telethon Kids Institute, University of Western Australia, 15 Hospital Avenue, Nedlands 6009, Australia;
- Correspondence:
| |
Collapse
|
138
|
Contribution of Evolutionary Selected Immune Gene Polymorphism to Immune-Related Disorders: The Case of Lymphocyte Scavenger Receptors CD5 and CD6. Int J Mol Sci 2021; 22:ijms22105315. [PMID: 34070159 PMCID: PMC8158487 DOI: 10.3390/ijms22105315] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2021] [Revised: 05/07/2021] [Accepted: 05/11/2021] [Indexed: 01/23/2023] Open
Abstract
Pathogens are one of the main selective pressures that ancestral humans had to adapt to. Components of the immune response system have been preferential targets of natural selection in response to such pathogen-driven pressure. In turn, there is compelling evidence showing that positively selected immune gene variants conferring increased resistance to past or present infectious agents are today associated with increased risk for autoimmune or inflammatory disorders but decreased risk of cancer, the other side of the same coin. CD5 and CD6 are lymphocytic scavenger receptors at the interphase of the innate and adaptive immune responses since they are involved in both: (i) microbial-associated pattern recognition; and (ii) modulation of intracellular signals mediated by the clonotypic antigen-specific receptor present in T and B cells (TCR and BCR, respectively). Here, we review available information on CD5 and CD6 as targets of natural selection as well as on the role of CD5 and CD6 variation in autoimmunity and cancer.
Collapse
|
139
|
Rohrhofer J, Zwirzitz B, Selberherr E, Untersmayr E. The Impact of Dietary Sphingolipids on Intestinal Microbiota and Gastrointestinal Immune Homeostasis. Front Immunol 2021; 12:635704. [PMID: 34054805 PMCID: PMC8160510 DOI: 10.3389/fimmu.2021.635704] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Accepted: 04/23/2021] [Indexed: 12/12/2022] Open
Abstract
The large surfaces of gastrointestinal (GI) organs are well adapted to their diverse tasks of selective nutritional uptake and defense against the external environment. To maintain a functional balance, a vast number of immune cells is located within the mucosa. A strictly regulated immune response is required to impede constant inflammation and to maintain barrier function. An increasing prevalence of GI diseases has been reported in Western societies over the past decades. This surge in GI disorders has been linked to dietary changes followed by an imbalance of the gut microbiome, leading to a chronic, low grade inflammation of the gut epithelium. To counteract the increasing health care costs associated with diseases, it is paramount to understand the mechanisms driving immuno-nutrition, the associations between nutritional compounds, the commensal gut microbiota, and the host immune response. Dietary compounds such as lipids, play a central role in GI barrier function. Bioactive sphingolipids (SLs), e.g. sphingomyelin (SM), sphingosine (Sph), ceramide (Cer), sphingosine-1- phosphate (S1P) and ceramide-1-phosphate (C1P) may derive from dietary SLs ingested through the diet. They are not only integral components of cell membranes, they additionally modulate cell trafficking and are precursors for mediators and second messenger molecules. By regulating intracellular calcium levels, cell motility, cell proliferation and apoptosis, SL metabolites have been described to influence GI immune homeostasis positively and detrimentally. Furthermore, dietary SLs are suggested to induce a shift in the gut microbiota. Modes of action range from competing with the commensal bacteria for intestinal cell attachment to prevention from pathogen invasion by regulating innate and immediate defense mechanisms. SL metabolites can also be produced by gut microorganisms, directly impacting host metabolic pathways. This review aims to summarize recent findings on SL signaling and functional variations of dietary SLs. We highlight novel insights in SL homeostasis and SL impact on GI barrier function, which is directly linked to changes of the intestinal microbiota. Knowledge gaps in current literature will be discussed to address questions relevant for understanding the pivotal role of dietary SLs on chronic, low grade inflammation and to define a balanced and healthy diet for disease prevention and treatment.
Collapse
Affiliation(s)
- Johanna Rohrhofer
- Gastrointestinal Immunology Group, Institute of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Benjamin Zwirzitz
- Unit of Food Microbiology, Institute of Food Safety, Food Technology and Veterinary Public Health, University of Veterinary Medicine, Vienna, Austria
| | - Evelyne Selberherr
- Unit of Food Microbiology, Institute of Food Safety, Food Technology and Veterinary Public Health, University of Veterinary Medicine, Vienna, Austria
| | - Eva Untersmayr
- Gastrointestinal Immunology Group, Institute of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| |
Collapse
|
140
|
The fatty acid-binding protein (FABP) decreases the clinical signs and modulates immune responses in a mouse model of experimental autoimmune encephalomyelitis (EAE). Int Immunopharmacol 2021; 96:107756. [PMID: 33993100 DOI: 10.1016/j.intimp.2021.107756] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Revised: 04/27/2021] [Accepted: 05/01/2021] [Indexed: 11/24/2022]
Abstract
BACKGROUND An increasing body of studies has shown that Fasciola hepatica can affect immune responses. This study explored whether the fatty acid-binding protein (FABP) of F. hepatica can modulate the immune system in a mouse model of experimental autoimmune encephalomyelitis (EAE). METHODS EAE-induced C57BL/6 mice were treated with vehicle, F. hepatica total extract (TE) or FABP. The clinical signs, body weights, and the expression of IFN-γ, T-bet, IL-4, GATA3, IL-17, RORγ, TGF-β, FOXP3, IL-10, TNF-α genes and proteins were determined in the isolated CD4+ splenocytes. Besides, the percentage of Treg cells and degree of demyelination were evaluated. RESULTS We found that TE and FABP treatments decreased the clinical scores, lymphocyte infiltration rate, and demyelinated plaques in EAE mice. The expressions of IL-4 and GATA3 were increased, whereas IL-17 and TNF-α were down-regulated. FABP did not affect the expression of IFN-γ, RORγ, IL-10, and TGF-β genes or proteins but reduced the expression of T-bet. TE administration did not affect the expression of IL-10 and the Tbet genes, and increased the expression levels of IFN-γ and FOXP3 in CD4+ lymphocytes. Both FABP and TE treatment did not affect the Treg cell percentage. CONCLUSION This study indicates that F. hepatica FABP and TE can suppress the inflammatory responses in EAE-induced mice and shift the immune system toward Th2 responses. However, FABP exerts stronger anti-inflammatory effects and seems to be more effective than TE for EAE treatment.
Collapse
|
141
|
Cohen R, Ashman M, Taha MK, Varon E, Angoulvant F, Levy C, Rybak A, Ouldali N, Guiso N, Grimprel E. Pediatric Infectious Disease Group (GPIP) position paper on the immune debt of the COVID-19 pandemic in childhood, how can we fill the immunity gap? Infect Dis Now 2021; 51:418-423. [PMID: 33991720 PMCID: PMC8114587 DOI: 10.1016/j.idnow.2021.05.004] [Citation(s) in RCA: 162] [Impact Index Per Article: 54.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Revised: 04/28/2021] [Accepted: 05/10/2021] [Indexed: 12/24/2022]
Abstract
Since the beginning of the COVID-19 pandemic, reduced incidence of many viral and bacterial infections has been reported in children: bronchiolitis, varicella, measles, pertussis, pneumococcal and meningococcal invasive diseases. The purpose of this opinion paper is to discuss various situations that could lead to larger epidemics when the non-pharmaceutical interventions (NPI) imposed by the SARS-CoV-2 epidemic will no longer be necessary. While NPIs limited the transmission of SARS-CoV-2, they also reduced the spread of other pathogens during and after lockdown periods, despite the re-opening of schools since June 2020 in France. This positive collateral effect in the short term is welcome as it prevents additional overload of the healthcare system. The lack of immune stimulation due to the reduced circulation of microbial agents and to the related reduced vaccine uptake induced an "immunity debt" which could have negative consequences when the pandemic is under control and NPIs are lifted. The longer these periods of "viral or bacterial low-exposure" are, the greater the likelihood of future epidemics. This is due to a growing proportion of "susceptible" people and a declined herd immunity in the population. The observed delay in vaccination program without effective catch-up and the decrease in viral and bacterial exposures lead to a rebound risk of vaccine-preventable diseases. With a vaccination schedule that does not include vaccines against rotavirus, varicella, and serogroup B and ACYW Neisseria meningitidis, France could become more vulnerable to some of these rebound effects.
Collapse
Affiliation(s)
- Robert Cohen
- ACTIV, Association Clinique et Thérapeutique Infantile du Val-de-Marne, Créteil, France; Clinical Research Center (CRC), Centre Hospitalier Intercommunal de Créteil, Créteil, France; Université Paris Est, IMRB-GRC GEMINI, Créteil, France; AFPA, Association Française de Pédiatrie Ambulatoire, Saint-Germain-en-Laye, France; GPIP, Groupe de Pathologie Infectieuse Pédiatrique, Créteil, France
| | - Marion Ashman
- ACTIV, Association Clinique et Thérapeutique Infantile du Val-de-Marne, Créteil, France; Centre Hospitalier Intercommunal de Créteil, France
| | - Muhamed-Kheir Taha
- Centre National de Référence des Méningocoques, Institut Pasteur, Paris, France
| | - Emmanuelle Varon
- Centre National de Référence des Pneumocoques, Centre Hospitalier Intercommunal de Créteil, France
| | - François Angoulvant
- GPIP, Groupe de Pathologie Infectieuse Pédiatrique, Créteil, France; Assistance Publique-Hôpitaux de Paris, Department of General Pediatrics and Pediatric Infectious Diseases, Necker-Enfants-Malades University Hospital, Université de Paris, France; INSERM, Centre de Recherche des Cordeliers, UMRS 1138, Sorbonne Université, Université de Paris, Paris, France
| | - Corinne Levy
- ACTIV, Association Clinique et Thérapeutique Infantile du Val-de-Marne, Créteil, France; Clinical Research Center (CRC), Centre Hospitalier Intercommunal de Créteil, Créteil, France; Université Paris Est, IMRB-GRC GEMINI, Créteil, France; AFPA, Association Française de Pédiatrie Ambulatoire, Saint-Germain-en-Laye, France; GPIP, Groupe de Pathologie Infectieuse Pédiatrique, Créteil, France.
| | - Alexis Rybak
- ACTIV, Association Clinique et Thérapeutique Infantile du Val-de-Marne, Créteil, France; AFPA, Association Française de Pédiatrie Ambulatoire, Saint-Germain-en-Laye, France; GPIP, Groupe de Pathologie Infectieuse Pédiatrique, Créteil, France
| | - Naim Ouldali
- ACTIV, Association Clinique et Thérapeutique Infantile du Val-de-Marne, Créteil, France; AFPA, Association Française de Pédiatrie Ambulatoire, Saint-Germain-en-Laye, France; GPIP, Groupe de Pathologie Infectieuse Pédiatrique, Créteil, France; INSERM, Centre de Recherche des Cordeliers, UMRS 1138, Sorbonne Université, Université de Paris, Paris, France; Assistance Publique-Hôpitaux de Paris, Department of general pediatrics, pediatric infectious disease and internal medicine, Robert Debré university hospital, Université de Paris, Paris, France
| | | | - Emmanuel Grimprel
- GPIP, Groupe de Pathologie Infectieuse Pédiatrique, Créteil, France; Service de pédiatrie, Centre Hospitalier Armand Trousseau, Paris, France
| |
Collapse
|
142
|
Gitas G, Proppe L, Ertan AK, Baum S, Rody A, Kocaer M, Dinas K, Allahqoli L, Laganà AS, Sotiriadis A, Sommer S, Alkatout I. Influence of the second stage of labor on maternal and neonatal outcomes in vaginal births after caesarean section: a multicenter study in Germany. BMC Pregnancy Childbirth 2021; 21:356. [PMID: 33947354 PMCID: PMC8097953 DOI: 10.1186/s12884-021-03817-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2020] [Accepted: 04/20/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The American College of Obstetricians and Gynecologists (ACOG) introduced a new standard of care in 2014, extending the duration of the second stage of labor in order to reduce caesarean delivery (CD) rates and its severe complications. The aim of the present study is to evaluate success rates of trial of labor after caesarean section (TOLAC), as well as maternal and neonatal outcomes after the establishment of the recent guidelines. METHODS A retrospective study was performed at two large departments in Germany from January 2008 to January 2018. Patients undergoing TOLAC were divided into two groups. Group I (958 patients) was constituted before the establishment of the current guidelines, and Group II (588 patients) after the establishment of the guidelines. A subgroup analysis was performed to compare neonatal outcomes after successful TOLAC and operative vaginal delivery with those after failed TOLAC and secondary CD. RESULTS The success rate of vaginal births after cesarean section (VBAC) fell from 66.4% in Group I to 55.8% in Group II (p < 0.001). The median duration of the second stage of labor was statistically significantly longer in Group II than in Group I (79.3 ± 61.9 vs. 69.3 ± 58.2 min) for patients without previous vaginal birth. The incidence of operative vaginal delivery decreased from Group I to Group II (9.6% vs. 6.8%). The incidence of third- and fourth-degree perineal lacerations, blood loss and emergency CD were similar in the two groups. Concerning the neonatal outcome, our groups did not differ significantly in regard of rates of umbilical artery cord pH < 7.1 (p = 0.108), the 5-min Apgar scores below 7 (p = 0.224) and intubation (p = 0.547). However, the transfer rates to the neonatal care unit were significantly higher in Group II than in Group I (p < 0.001). Neonatal outcomes did not differ significantly in the subgroup analysis. CONCLUSION Extending the second stage of labor does not necessarily result in more vaginal births after TOLAC. Maternal and neonatal outcomes were similar in both groups. Further studies will be needed to evaluate the role of operative vaginal delivery and the duration of the second stage of labor in TOLAC.
Collapse
Affiliation(s)
- G Gitas
- Department of Obstetrics and Gynecology, University Hospital Schleswig Holstein, Campus Luebeck, Ratzeburger Allee 160, Haus A, 23538, Luebeck, Germany.
| | - L Proppe
- Department of Obstetrics and Gynecology, University Hospital Schleswig Holstein, Campus Luebeck, Ratzeburger Allee 160, Haus A, 23538, Luebeck, Germany
| | - A K Ertan
- Department of Obstetrics and Gynecology, Leverkusen Municipal Hospital, Leverkusen, 51375, Germany
| | - S Baum
- Department of Obstetrics and Gynecology, University Hospital Schleswig Holstein, Campus Luebeck, Ratzeburger Allee 160, Haus A, 23538, Luebeck, Germany
| | - A Rody
- Department of Obstetrics and Gynecology, University Hospital Schleswig Holstein, Campus Luebeck, Ratzeburger Allee 160, Haus A, 23538, Luebeck, Germany
| | - M Kocaer
- Department of Obstetrics and Gynecology, Leverkusen Municipal Hospital, Leverkusen, 51375, Germany
| | - K Dinas
- Second Department of Obstetrics and Gynecology, Medical School, Aristotle University of Thessaloniki, Konstaninoupoleos 49, Thessaloniki, 546 42, Greece
| | - L Allahqoli
- School of Public Health, Iran University of Medical Sciences (IUMS), Tehran, 14535, Iran
| | - A S Laganà
- Department of Obstetrics and Gynecology, Filippo Del Ponte Hospital, University of Insubria, Varese, Italy
| | - A Sotiriadis
- Second Department of Obstetrics and Gynecology, Medical School, Aristotle University of Thessaloniki, Konstaninoupoleos 49, Thessaloniki, 546 42, Greece
| | - S Sommer
- Department of Obstetrics and Gynecology, University Hospital Schleswig Holstein, Campus Luebeck, Ratzeburger Allee 160, Haus A, 23538, Luebeck, Germany
| | - I Alkatout
- Department of Obstetrics and Gynecology, University Hospital Schleswig Holstein, Campus Kiel, Kiel, Germany
| |
Collapse
|
143
|
Abstract
Intestinal microbiota gained attention due to its pleiotropic effect on intestinal barrier, nutrients metabolism and on immune system development and functions. Recent evidence pointed out a possible role of an altered gut microbiota composition in the pathogenesis and progression of several autoimmune disorders, occurring at gastrointestinal level or far apart. In thyroid autoimmune disorders, encompassing Hashimoto's thyroiditis, Graves' disease and thyroid-associated orbitopathy, the combined effect of environmental triggers and genetic predisposing background, lead to the loss of self-tolerance and to auto-aggressive damage, involving both cellular and humoral networks of immune system. This review is aimed at assessing the current knowledge about the studies published on the fecal microbiota composition in patients bearing thyroid autoimmune diseases. We further examined the reciprocal interaction between gut microbiota composition and the most used treatments for thyroid disorders.
Collapse
Affiliation(s)
- Camilla Virili
- Department of Medico-Surgical Sciences and Biotechnologies, ''Sapienza'' University of Rome, Latina, Italy.
| | | | - Marco Centanni
- Department of Medico-Surgical Sciences and Biotechnologies, ''Sapienza'' University of Rome, Latina, Italy; Endocrine Unit, AUSL Latina, Latina, Italy.
| |
Collapse
|
144
|
Lamminsalo A, Lundqvist A, Virta LJ, Gissler M, Kaila M, Metsälä J, Virtanen SM. Cow's milk allergy in infancy and later development of type 1 diabetes-nationwide case-cohort study. Pediatr Diabetes 2021; 22:400-406. [PMID: 33470004 DOI: 10.1111/pedi.13181] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Revised: 12/09/2020] [Accepted: 12/15/2020] [Indexed: 12/15/2022] Open
Abstract
BAKGROUND It is suggested that early intake of cow's milk could be a risk factor for type 1 diabetes (T1DM). Further, the different immunological background, gives a suggestion of an inverse relationship for the occurrence of these diseases. The aim of this study was to explore the association between cow's milk allergy (CMA) and the risk of T1DM in a register-based case-cohort study. METHODS Data were obtained from Finnish nationwide health registers. The study included all children born in Finland between January 01, 1986 and December 31, 2008 and diagnosed with T1DM before the age of 16 years (n = 7754). A 10% random sample from each birth year cohort was selected as a reference cohort (n = 137,798). T1DM, CMA, and asthma were defined based on valid special reimbursements for the costs of drugs/special formulas needed in the treatment of the diseases. Child's sex, birth decade, asthma, maternal diabetes and asthma, smoking during pregnancy, and previous deliveries were considered as confounding factors. Time-dependent, weighted Cox regression was applied for statistical analyses. RESULTS Children with CMA had an increased risk of developing T1DM in fully adjusted model (HR = 1.17; 95% CI 1.02-1.34), but the association was no longer observed when including the use of special infant formulas in the definition of CMA in the sensitivity analysis (HR = 1.11; 95% CI 0.92-1.32). CMA was associated with an increased risk of T1DM in children without asthma (HR = 1.27; 95%CI 1.10-1.47), but not in children with asthma (HR = 0.80; 95% CI 0.92-1.27). CONCLUSION Children with CMA may have an increased risk of T1DM.
Collapse
Affiliation(s)
- Anni Lamminsalo
- Faculty of Social Sciences, Unit of Health Sciences, Tampere University, Tampere, Finland.,Research, Development, and Innovation Center, Tampere University Hospital, Tampere, Finland
| | - Annamari Lundqvist
- Public Health Solutions Department, Finnish Institute for Health and Welfare, Helsinki, Finland
| | - Lauri J Virta
- Research Department, Social Insurance Institution, Turku, Finland
| | - Mika Gissler
- Information Services Department, Finnish Institute for Health and Welfare, Helsinki, Finland.,Department of Neurobiology, Care Sciences and Society, Karolinska Institute, Stockholm, Sweden
| | - Minna Kaila
- Public Health Medicine, University of Helsinki, Helsinki University Hospital, Helsinki, Finland.,Department of Paediatrics, Tampere University Hospital, Tampere, Finland
| | - Johanna Metsälä
- Public Health Solutions Department, Finnish Institute for Health and Welfare, Helsinki, Finland
| | - Suvi M Virtanen
- Faculty of Social Sciences, Unit of Health Sciences, Tampere University, Tampere, Finland.,Research, Development, and Innovation Center, Tampere University Hospital, Tampere, Finland.,Public Health Solutions Department, Finnish Institute for Health and Welfare, Helsinki, Finland.,Center for Child Health Research, Tampere University, Tampere University Hospital, Tampere, Finland
| |
Collapse
|
145
|
Merz MP, Turner JD. Is early life adversity a trigger towards inflammageing? Exp Gerontol 2021; 150:111377. [PMID: 33905877 DOI: 10.1016/j.exger.2021.111377] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2020] [Revised: 04/16/2021] [Accepted: 04/21/2021] [Indexed: 02/06/2023]
Abstract
There are many 'faces' of early life adversity (ELA), such as childhood trauma, institutionalisation, abuse or exposure to environmental toxins. These have been implicated in the onset and severity of a wide range of chronic non-communicable diseases later in life. The later-life disease risk has a well-established immunological component. This raises the question as to whether accelerated immune-ageing mechanistically links early-life adversity to the lifelong health trajectory resulting in either 'poor' or 'healthy' ageing. Here we examine observational and mechanistic studies of ELA and inflammageing, highlighting common and distinct features in these two life stages. Many biological processes appear in common including reduction in telomere length, increased immunosenescence, metabolic distortions and chronic (viral) infections. We propose that ELA shapes the developing immune, endocrine and nervous system in a non-reversible way, creating a distinct phenotype with accelerated immunosenescence and systemic inflammation. We conclude that ELA might act as an accelerator for inflammageing and age-related diseases. Furthermore, we now have the tools and cohorts to be able to dissect the interaction between ELA and later life phenotype. This should, in the near future, allow us to identify the ecological and mechanistic processes that are involved in 'healthy' or accelerated immune-ageing.
Collapse
Affiliation(s)
- Myriam P Merz
- Immune Endocrine and Epigenetics Research Group, Department of Infection and Immunity, Luxembourg Institute of Health (LIH), 29 rue Henri Koch, L-4354 Esch-sur-Alzette, Luxembourg; Faculty of Science, Technology and Medicine, University of Luxembourg, 2 avenue de Université, L-4365 Esch-sur-Alzette, Luxembourg
| | - Jonathan D Turner
- Immune Endocrine and Epigenetics Research Group, Department of Infection and Immunity, Luxembourg Institute of Health (LIH), 29 rue Henri Koch, L-4354 Esch-sur-Alzette, Luxembourg.
| |
Collapse
|
146
|
Alberca GGF, Solis-Castro RL, Solis-Castro ME, Alberca RW. Coronavirus disease–2019 and the intestinal tract: An overview. World J Gastroenterol 2021; 27:1255-1266. [PMID: 33833480 PMCID: PMC8015300 DOI: 10.3748/wjg.v27.i13.1255] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Revised: 02/10/2021] [Accepted: 03/09/2021] [Indexed: 02/06/2023] Open
Abstract
Severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) infection can progress to a severe respiratory and systemic disease named coronavirus disease–2019 (COVID-19). The most common symptoms are fever and respiratory discomfort. Nevertheless, gastrointestinal infections have been reported, with symptoms such as diarrhea, nausea, vomiting, abdominal pain, and lack of appetite. Importantly, SARS-CoV-2 can remain positive in fecal samples after nasopharyngeal clearance. After gastrointestinal SARS-CoV-2 infection and other viral gastrointestinal infections, some patients may develop alterations in the gastrointestinal microbiota. In addition, some COVID-19 patients may receive antibiotics, which may also disturb gastrointestinal homeostasis. In summary, the gastrointestinal system, gut microbiome, and gut-lung axis may represent an important role in the development, severity, and treatment of COVID-19. Therefore, in this review, we explore the current pieces of evidence of COVID-19 gastrointestinal manifestations, possible implications, and interventions.
Collapse
Affiliation(s)
- Gabriela Gama Freire Alberca
- Department of Microbiology, Institute of Biomedical Sciences-University of São Paulo, São Paulo 05508-000, Brazil
| | - Rosa Liliana Solis-Castro
- Departamento Académico de Biología Bioquímica, Facultad de Ciencias de la Salud, Universidad Nacional de Tumbes, Pampa Grande 24000, Tumbes, Peru
| | - Maria Edith Solis-Castro
- Departamento Académico de Medicina Humana, Facultad de Ciencias de la Salud, Universidad Nacional de Tumbes, Pampa Grande 24000, Tumbes, Peru
| | - Ricardo Wesley Alberca
- Laboratorio de Dermatologia e Imunodeficiencias (LIM-56), Departamento de Dermatologia, Faculdade de Medicina FMUSP, Universidade de São Paulo, São Paulo 01246-903, Brazil
| |
Collapse
|
147
|
Kraft M, Dölle-Bierke S, Renaudin JM, Ruëff F, Scherer Hofmeier K, Treudler R, Pföhler C, Hawranek T, Poziomkowska-Gęsicka I, Jappe U, Christoff G, Müller S, Fernandez-Rivas M, García BE, De Vicente Jiménez TM, Cardona V, Kleinheinz A, Kreft B, Bauer A, Wagner N, Wedi B, Wenzel M, Bilò MB, Worm M. Wheat Anaphylaxis in Adults Differs from Reactions to Other Types of Food. THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY-IN PRACTICE 2021; 9:2844-2852.e5. [PMID: 33831620 DOI: 10.1016/j.jaip.2021.03.037] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 03/04/2021] [Accepted: 03/17/2021] [Indexed: 02/07/2023]
Abstract
BACKGROUND Wheat is one of the most commonly consumed foods and a known elicitor of anaphylaxis in children and adults. Reactions in adults are often cofactor dependent and characterized by a prolonged time between food intake and the onset of symptoms making the diagnosis of wheat anaphylaxis challenging. OBJECTIVE To characterize a cohort of patients with the history of wheat anaphylaxis to better understand this atypical phenotype of anaphylaxis. METHODS Data from the European Anaphylaxis Registry from 2007 to 2019 (n = 10,636) including 250 patients (213 adults and 37 children) with a history of anaphylaxis caused by wheat were analyzed. RESULTS Wheat was the most common food elicitor of anaphylaxis in adults in the registry in Central Europe. Reactions to wheat in adults were frequently associated with exercise as a cofactor (82.8%) and partially delayed (57.5%). Only 36.9% of patients had atopic comorbidities, which was uncommonly low for adult patients allergic to other kinds of foods (63.2%). Anaphylaxis to wheat presented frequently with cardiovascular symptoms (86.7%) including severe symptoms such as loss of consciousness (41%) and less often with respiratory symptoms (53.6%). The reactions to wheat were more severe than reactions to other foods (odds ratio [OR] = 4.33), venom (OR = 1.58), or drugs (OR = 2.11). CONCLUSIONS Wheat is a relevant elicitor of anaphylaxis in adults in Central Europe. Wheat anaphylaxis is highly dependent on the presence of cofactors and less frequently associated with atopic diseases compared with other food allergies. More data on mechanisms of wheat-induced anaphylaxis are required to develop preventive measures for this potentially life-threatening disease.
Collapse
Affiliation(s)
- Magdalena Kraft
- Division of Allergy and Immunology, Department of Dermatology, Venerology and Allergology, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany; Department of Emergency Medicine, University Hospital Halle (Saale), Medical Faculty of Martin Luther University Halle-Wittenberg, Halle (Saale), Germany
| | - Sabine Dölle-Bierke
- Division of Allergy and Immunology, Department of Dermatology, Venerology and Allergology, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Jean-Marie Renaudin
- Presidency on behalf of Allergy Vigilance Network, Vandoeuvre les Nancy, France
| | - Franziska Ruëff
- Department of Dermatology and Allergology, Klinikum der Universität München, Munich, Germany
| | - Kathrin Scherer Hofmeier
- Division of Allergy, Department of Dermatology, University Hospital Basel, University of Basel, Basel, Switzerland
| | - Regina Treudler
- Department of Dermatology, Venereology and Allergology and Leipzig Interdisciplinary Center of Allergology (LICA) Comprehensive Allergy Center, University Hospital, Leipzig, Germany
| | - Claudia Pföhler
- Department of Dermatology, The Saarland University Medical Center, Homburg/Saar, Germany
| | - Thomas Hawranek
- Department of Dermatology and Allergology, University Hospital Salzburg, Paracelsus Medical University, Salzburg, Austria
| | | | - Uta Jappe
- Division of Clinical and Molecular Allergology, Research Center Borstel, Airway Research Center North (ARCN), German Center for Lung Research, Borstel, Germany; Interdisciplinary Allergy Outpatient Clinic, Department of Pneumology, University of Lübeck, Lübeck, Germany
| | - George Christoff
- Faculty of Public Health, Medical University - Sofia, Sofia, Bulgaria; Allergy Out-patient Department, Acibadem CityClinic, Tokuda Medical Centre, Sofia, Bulgaria
| | - Sabine Müller
- Department of Dermatology, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Montserrat Fernandez-Rivas
- Department of Allergy, Hospital Clinico San Carlos, Universidad Complutense, IdISSC, ARADyAL, Madrid, Spain
| | - Blanca E García
- Allergology Service, Complejo Hospitalario de Navarra, Pamplona, Spain
| | | | - Victoria Cardona
- Allergy Section, Department of Internal Medicine, Hospital Vall d'Hebron, Barcelona, Spain; ARADyAL Research Network, Spain
| | | | - Burkhard Kreft
- Department of Dermatology and Venereology, Martin Luther University Halle-Wittenberg, Halle (Saale), Germany
| | - Andrea Bauer
- Department of Dermatology, University Allergy Center, University Hospital Carl Gustav Carus, Technical University Dresden, Dresden, Germany
| | - Nicola Wagner
- Department of Dermatology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Bettina Wedi
- Department of Dermatology and Allergy, Comprehensive Allergy Center, Hannover Medical School, Hannover, Germany
| | - Markus Wenzel
- Allergy Department, Fachkrankenhaus Kloster Grafschaft, Schmallenberg, Germany
| | - Maria Beatrice Bilò
- Department of Clinical and Molecular Sciences, Marche Polytechnic University - Allergy Unit, University Hospital Ospedali Riuniti di Ancona, Ancona, Italy
| | - Margitta Worm
- Division of Allergy and Immunology, Department of Dermatology, Venerology and Allergology, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany.
| |
Collapse
|
148
|
Yokanovich LT, Newberry RD, Knoop KA. Regulation of oral antigen delivery early in life: Implications for oral tolerance and food allergy. Clin Exp Allergy 2021; 51:518-526. [PMID: 33403739 PMCID: PMC8743004 DOI: 10.1111/cea.13823] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Revised: 10/19/2020] [Accepted: 12/30/2020] [Indexed: 12/11/2022]
Abstract
The increasing incidence of food allergy remains a significant public health concern. Food allergy is partially due to a lack, or loss of tolerance to food allergens. Clinical outcomes surrounding early life practices, such as breastfeeding, antibiotic use and food allergen exposure, indicate the first year of life in children represents a unique time for shaping the immune system to reduce allergic outcomes. Animal models have identified distinctive aspects of when and where dietary antigens are delivered within the intestinal tract to promote oral tolerance prior to weaning. Additionally, animal models have identified contributions from maternal proteins from breast milk and bacterial products from the gut microbiota in regulating dietary antigen exposure and promoting oral tolerance, thus connecting decades of clinical observations on the benefits of breastfeeding, early food allergen introduction and antibiotic avoidance in the first year of life in reducing allergic outcomes. Here, we discuss how exposure to gut luminal antigens, including food allergens, is regulated in early life to generate protective tolerance and the implications of this process for preventing and treating food allergies.
Collapse
Affiliation(s)
| | - Rodney D. Newberry
- Division of Gastroenterology, Department of Internal Medicine, Washington University School of Medicine, St. Louis, MO, USA
| | - Kathryn A. Knoop
- Department of Immunology, Mayo Clinic, Rochester MN, USA
- Department of Pediatrics, Mayo Clinic, Rochester MN, USA
| |
Collapse
|
149
|
Lothstein KE, Gause WC. Mining Helminths for Novel Therapeutics. Trends Mol Med 2021; 27:345-364. [PMID: 33495068 PMCID: PMC9884063 DOI: 10.1016/j.molmed.2020.12.010] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 12/23/2020] [Accepted: 12/28/2020] [Indexed: 01/31/2023]
Abstract
Helminths are an emerging source of therapeutics for dysregulated inflammatory diseases. Excretory/secretory (ES) molecules, released during infection, are responsible for many of these immunomodulatory effects and are likely to have evolved as a means for parasite survival in the host. While the mechanisms of action of these molecules have not been fully defined, evidence demonstrates that they target various pathways in the immune response, ranging from initiation to effector cell modulation. These molecules are applied in controlling specific effector mechanisms of type 1 and type 2 immune responses. Recently, studies have further focused on their therapeutic potential in specific disease models. Here we review recent findings on ES molecule modulation of immune functions, specifically highlighting their clinical implications for future use in inflammatory disease therapeutics.
Collapse
Affiliation(s)
- Katherine E Lothstein
- Center for Immunity and Inflammation, Department of Medicine, New Jersey Medical School, Rutgers, The State University of New Jersey, Newark, NJ 07103, USA
| | - William C Gause
- Center for Immunity and Inflammation, Department of Medicine, New Jersey Medical School, Rutgers, The State University of New Jersey, Newark, NJ 07103, USA.
| |
Collapse
|
150
|
Avery EG, Bartolomaeus H, Maifeld A, Marko L, Wiig H, Wilck N, Rosshart SP, Forslund SK, Müller DN. The Gut Microbiome in Hypertension: Recent Advances and Future Perspectives. Circ Res 2021; 128:934-950. [PMID: 33793332 DOI: 10.1161/circresaha.121.318065] [Citation(s) in RCA: 76] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The pathogenesis of hypertension is known to involve a diverse range of contributing factors including genetic, environmental, hormonal, hemodynamic and inflammatory forces, to name a few. There is mounting evidence to suggest that the gut microbiome plays an important role in the development and pathogenesis of hypertension. The gastrointestinal tract, which houses the largest compartment of immune cells in the body, represents the intersection of the environment and the host. Accordingly, lifestyle factors shape and are modulated by the microbiome, modifying the risk for hypertensive disease. One well-studied example is the consumption of dietary fibers, which leads to the production of short-chain fatty acids and can contribute to the expansion of anti-inflammatory immune cells, consequently protecting against the progression of hypertension. Dietary interventions such as fasting have also been shown to impact hypertension via the microbiome. Studying the microbiome in hypertensive disease presents a variety of unique challenges to the use of traditional model systems. Integrating microbiome considerations into preclinical research is crucial, and novel strategies to account for reciprocal host-microbiome interactions, such as the wildling mouse model, may provide new opportunities for translation. The intricacies of the role of the microbiome in hypertensive disease is a matter of ongoing research, and there are several technical considerations which should be accounted for moving forward. In this review we provide insights into the host-microbiome interaction and summarize the evidence of its importance in the regulation of blood pressure. Additionally, we provide recommendations for ongoing and future research, such that important insights from the microbiome field at large can be readily integrated in the context of hypertension.
Collapse
Affiliation(s)
- Ellen G Avery
- Experimental and Clinical Research Center, a cooperation of Charité-Universitätsmedizin Berlin and Max Delbruck Center for Molecular Medicine, Berlin, Germany (E.G.A.,H.B.,A.M.,L.M.,N.W.,S.K.F.,D.N.M.).,For Max Delbrück Center for Molecular Medicine in the Helmholtz Association, Berlin, Germany (E.G.A.,H.B., N.W., S.K.F., D.N.M.).,DZHK (German Centre for Cardiovascular Research), partner site Berlin, Germany (E.G.A., H.B., A.M., L.M., N.W., S.K.F., D.N.M.).,Freie Universität Berlin, Department of Biology, Chemistry, Pharmacy, Berlin, Germany (E.G.A.)
| | - Hendrik Bartolomaeus
- Experimental and Clinical Research Center, a cooperation of Charité-Universitätsmedizin Berlin and Max Delbruck Center for Molecular Medicine, Berlin, Germany (E.G.A.,H.B.,A.M.,L.M.,N.W.,S.K.F.,D.N.M.).,Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany (H.B., A.M., L.M., N.W., S.K.F., D.N.M.).,For Max Delbrück Center for Molecular Medicine in the Helmholtz Association, Berlin, Germany (E.G.A.,H.B., N.W., S.K.F., D.N.M.).,DZHK (German Centre for Cardiovascular Research), partner site Berlin, Germany (E.G.A., H.B., A.M., L.M., N.W., S.K.F., D.N.M.)
| | - Andras Maifeld
- Experimental and Clinical Research Center, a cooperation of Charité-Universitätsmedizin Berlin and Max Delbruck Center for Molecular Medicine, Berlin, Germany (E.G.A.,H.B.,A.M.,L.M.,N.W.,S.K.F.,D.N.M.).,Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany (H.B., A.M., L.M., N.W., S.K.F., D.N.M.).,DZHK (German Centre for Cardiovascular Research), partner site Berlin, Germany (E.G.A., H.B., A.M., L.M., N.W., S.K.F., D.N.M.)
| | - Lajos Marko
- Experimental and Clinical Research Center, a cooperation of Charité-Universitätsmedizin Berlin and Max Delbruck Center for Molecular Medicine, Berlin, Germany (E.G.A.,H.B.,A.M.,L.M.,N.W.,S.K.F.,D.N.M.).,Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany (H.B., A.M., L.M., N.W., S.K.F., D.N.M.).,DZHK (German Centre for Cardiovascular Research), partner site Berlin, Germany (E.G.A., H.B., A.M., L.M., N.W., S.K.F., D.N.M.)
| | - Helge Wiig
- Department of Biomedicine, University of Bergen, Norway (H.W.)
| | - Nicola Wilck
- Experimental and Clinical Research Center, a cooperation of Charité-Universitätsmedizin Berlin and Max Delbruck Center for Molecular Medicine, Berlin, Germany (E.G.A.,H.B.,A.M.,L.M.,N.W.,S.K.F.,D.N.M.).,Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany (H.B., A.M., L.M., N.W., S.K.F., D.N.M.).,For Max Delbrück Center for Molecular Medicine in the Helmholtz Association, Berlin, Germany (E.G.A.,H.B., N.W., S.K.F., D.N.M.).,DZHK (German Centre for Cardiovascular Research), partner site Berlin, Germany (E.G.A., H.B., A.M., L.M., N.W., S.K.F., D.N.M.).,For Berlin Institute of Health at Charité-Universitätsmedizin Berlin, Berlin, Germany (N.W.)
| | - Stephan P Rosshart
- Medical Center-University of Freiburg, Department of Medicine II, Gastroenterology, Hepatology, Endocrinology, and Infectious Diseases, Freiburg, Germany (S.P.R.)
| | - Sofia K Forslund
- Experimental and Clinical Research Center, a cooperation of Charité-Universitätsmedizin Berlin and Max Delbruck Center for Molecular Medicine, Berlin, Germany (E.G.A.,H.B.,A.M.,L.M.,N.W.,S.K.F.,D.N.M.).,Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany (H.B., A.M., L.M., N.W., S.K.F., D.N.M.).,For Max Delbrück Center for Molecular Medicine in the Helmholtz Association, Berlin, Germany (E.G.A.,H.B., N.W., S.K.F., D.N.M.).,DZHK (German Centre for Cardiovascular Research), partner site Berlin, Germany (E.G.A., H.B., A.M., L.M., N.W., S.K.F., D.N.M.)
| | - Dominik N Müller
- Experimental and Clinical Research Center, a cooperation of Charité-Universitätsmedizin Berlin and Max Delbruck Center for Molecular Medicine, Berlin, Germany (E.G.A.,H.B.,A.M.,L.M.,N.W.,S.K.F.,D.N.M.).,Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany (H.B., A.M., L.M., N.W., S.K.F., D.N.M.).,For Max Delbrück Center for Molecular Medicine in the Helmholtz Association, Berlin, Germany (E.G.A.,H.B., N.W., S.K.F., D.N.M.).,DZHK (German Centre for Cardiovascular Research), partner site Berlin, Germany (E.G.A., H.B., A.M., L.M., N.W., S.K.F., D.N.M.)
| |
Collapse
|