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Dick JK, Boull C, Pozos TC, Maguiness SM. Improvement in Atopic Dermatitis and Recurrent Infection With Dupilumab in Children With Distinct Genetic Types of Hyper-IgE Syndrome: A Case Series and Literature Review. Pediatr Dermatol 2024. [PMID: 39420803 DOI: 10.1111/pde.15780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/18/2024] [Revised: 09/18/2024] [Accepted: 09/29/2024] [Indexed: 10/19/2024]
Abstract
Hyperimmunoglobulin E syndrome (HIES) is a group of rare genetic disorders characterized by severe atopic dermatitis and recurrent skin and pulmonary infections. The efficacy of dupilumab in pediatric patients with HIES-associated severe atopic dermatitis is relatively understudied. Here, we present a series of three children with HIES, two with AD-HIES caused by STAT3 mutations, and one with AR-HIES caused by biallelic mutations in ZNF341. In all cases, dupilumab treatment led to sustained clearance of severe atopic dermatitis over multiple years, as well as improvements in systemic symptoms of HIES.
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Affiliation(s)
- Jenna K Dick
- Division of Pediatric Dermatology, Department of Dermatology, University of Minnesota, Minneapolis, Minnesota, USA
| | - Christina Boull
- Division of Pediatric Dermatology, Department of Dermatology, University of Minnesota, Minneapolis, Minnesota, USA
| | - Tamara C Pozos
- Department of Clinical Immunology, Children's Minnesota, Minneapolis, Minnesota, USA
| | - Sheilagh M Maguiness
- Division of Pediatric Dermatology, Department of Dermatology, University of Minnesota, Minneapolis, Minnesota, USA
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Kang W, Zhang J, Yu N, Wei L, Chen Y. Screening of IgE-Binding Epitopes of Peach Allergenic Protein Pru p 7 Based on an Immune Microarray Assay. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024. [PMID: 39422561 DOI: 10.1021/acs.jafc.4c00347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2024]
Abstract
Pru p 7 (also named Peamaclein) is a member of the gibberellin-regulated protein family, which is the latest foodborne allergenic protein identified in peach. In this paper, the prokaryotic expression and identification of Pru p 7 were performed, and the protein properties, structure, and homology were analyzed. In addition, a preliminary screening of B-cell linear epitopes of Pru p 7 was performed by the bioinformatics software prediction method, and three epitopes were identified using slot-blot immune microarray assay combined with an immune score matrix (P-1, AA16-21, AGYQER; P-2, AA40-46, TYGNKDE; P-3, AA52-59, DLKNSKGN). Moreover, the electrostatic potential of these epitopes was analyzed, and the stability after ultrahigh pressure treatment was also verified. Finally, the amino acids that play key immune roles in the epitopes were obtained by amino acid mutations. These results may contribute to the further understanding of Pru p 7 and the prevention of peach allergy.
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Affiliation(s)
- Wenhan Kang
- Chinese Academy of Inspection and Quarantine, Beijing 100176, People's Republic of China
| | - Jiukai Zhang
- Chinese Academy of Inspection and Quarantine, Beijing 100176, People's Republic of China
| | - Ning Yu
- Chinese Academy of Inspection and Quarantine, Beijing 100176, People's Republic of China
| | - Liyang Wei
- Chinese Academy of Inspection and Quarantine, Beijing 100176, People's Republic of China
| | - Ying Chen
- Chinese Academy of Inspection and Quarantine, Beijing 100176, People's Republic of China
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Jiang R, Li Z, Zhang C, Zhang G, Luo F, Qu Q, Tu S, Huang Z, Wang Z, Zhang Z. No genetic causal relationship between lung function and osteoporosis - evidence from a mendelian randomization study. Sci Rep 2024; 14:24334. [PMID: 39420067 DOI: 10.1038/s41598-024-76116-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2024] [Accepted: 10/10/2024] [Indexed: 10/19/2024] Open
Abstract
For a long time, the decline in lung function has been regarded as a potential factor associated with the risk of osteoporosis (OP). Although several observational studies have investigated the relationship between lung function and OP, their conclusions have been inconsistent. Given that Mendelian randomization (MR) studies can help reduce the interference of confounding factors on outcomes, we adopted this approach to explore the causal relationship between lung function and OP at the genetic level. To investigate the potential causality between lung function (FVC, FEV1, FEV1/FVC, PEF) and OP, we conducted a MR analysis employing three approaches: inverse variance weighted (IVW), MR-Egger, and weighted median. We used Cochran's Q test to detect potential heterogeneity, MR-Egger regression to evaluate directional pleiotropy, and the MR-PRESSO method to evaluate horizontal pleiotropy. In addition, we used MR-PRESSO and MR radial methods to exclude SNPs exhibiting pleiotropic outliers. Upon identification of potential outliers, we removed them and subsequently ran MR analysis again to assess the reliability of our findings. The MR analysis suggested that there was no causal effect of lung function (FVC, PEF, FEV1/FVC, FEV1) on OP, which is consistent with the. results after excluding potential outliers using MR-PRESSO and MR radial. methods. Sensitivity analysis confirmed the reliability and consistency of these. results. The study concluded that there is no causal link between lung function and OP. The association found in observational studies might be attributable to shared risk factors.
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Affiliation(s)
- Rui Jiang
- Graduate school, Hubei University of Traditional Chinese Medicine, 16 Huangjiahu West Road, Wuhan, 430065, China
- Department of Orthopedics, Huanggang Hospital of Traditional Chinese Medicine affiliated with Hubei University of Chinese Medicine, 19 Dongmen Road, Huanggang, 438000, China
| | - Zhongshan Li
- Graduate school, Hubei University of Traditional Chinese Medicine, 16 Huangjiahu West Road, Wuhan, 430065, China
- Department of Orthopedics, Huanggang Hospital of Traditional Chinese Medicine affiliated with Hubei University of Chinese Medicine, 19 Dongmen Road, Huanggang, 438000, China
| | - Caiguo Zhang
- Graduate school, Hubei University of Traditional Chinese Medicine, 16 Huangjiahu West Road, Wuhan, 430065, China
- Department of Orthopedics, Huanggang Hospital of Traditional Chinese Medicine affiliated with Hubei University of Chinese Medicine, 19 Dongmen Road, Huanggang, 438000, China
| | - Gengchao Zhang
- Department of Orthopedics, Huanggang Hospital of Traditional Chinese Medicine affiliated with Hubei University of Chinese Medicine, 19 Dongmen Road, Huanggang, 438000, China
- Medical college, Hubei Minzu University, 39 Xueyuan Road, Enshi, 445000, China
| | - Feng Luo
- Department of Rehabilitation, Huanggang Central Hospital, 126 Qian Avenue, Huanggang, 438000, China
| | - Qi Qu
- Department of Orthopedics, Huanggang Hospital of Traditional Chinese Medicine affiliated with Hubei University of Chinese Medicine, 19 Dongmen Road, Huanggang, 438000, China
- Medical college, Hubei Minzu University, 39 Xueyuan Road, Enshi, 445000, China
| | - Shuangqiang Tu
- Graduate school, Hubei University of Traditional Chinese Medicine, 16 Huangjiahu West Road, Wuhan, 430065, China
- Department of Orthopedics, Huanggang Hospital of Traditional Chinese Medicine affiliated with Hubei University of Chinese Medicine, 19 Dongmen Road, Huanggang, 438000, China
| | - Zixuan Huang
- Graduate school, Hubei University of Traditional Chinese Medicine, 16 Huangjiahu West Road, Wuhan, 430065, China
| | - Zhiyu Wang
- Department of Orthopedics, Huanggang Hospital of Traditional Chinese Medicine affiliated with Hubei University of Chinese Medicine, 19 Dongmen Road, Huanggang, 438000, China.
- Medical college, Hubei Minzu University, 39 Xueyuan Road, Enshi, 445000, China.
| | - Zheng Zhang
- Graduate school, Hubei University of Traditional Chinese Medicine, 16 Huangjiahu West Road, Wuhan, 430065, China.
- Department of Orthopedics, Huanggang Hospital of Traditional Chinese Medicine affiliated with Hubei University of Chinese Medicine, 19 Dongmen Road, Huanggang, 438000, China.
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Ogata M, Kido J, Watanabe S, Yoshida T, Nishi N, Shimomura S, Hirai N, Tanaka K, Mizukami T, Yanai M, Nakamura K. The Efficacy and Safety of Stepwise Oral Food Challenge in Children with Cow's Milk Allergy. Int Arch Allergy Immunol 2024:1-11. [PMID: 39419014 DOI: 10.1159/000541272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2024] [Accepted: 08/30/2024] [Indexed: 10/19/2024] Open
Abstract
INTRODUCTION Stepwise oral food challenge (OFC) tests begin with low doses of allergens and progress to full doses. We previously reported the safety and efficacy of stepwise OFC for reintroducing hen eggs. In this study, we discuss its application for cow's milk (CM) allergy. METHODS We included 927 children (median age, 3.2 years) who underwent CM-OFC between 2017 and 2021. The target challenge dose was classified as low (<10 mL), middle (≥10 mL but <100 mL), or full. When participants reacted to the low dose, they underwent a very low-dose OFC using baked milk or <1 mL of CM. RESULTS Positive reactions occurred in 210 cases (22.7%), including 69 anaphylactic reactions (7.4%). A lower target dose resulted in more positive OFC results (p < 0.001) and anaphylaxis (p = 0.001). The lower dose group included more children with complete elimination of CM (p < 0.001), with numerous histories of anaphylaxis induced by CM (p < 0.001), and higher levels of total IgE (p = 0.033) and CM-sIgE (p < 0.001). A multivariate analysis indicated that in the low-dose-OFC group, higher CM-sIgE levels (p = 0.034), younger age (p = 0.005), and complete elimination of CM (p = 0.002) were associated with positive OFC results. CONCLUSION The stepwise OFC could reintroduce small amounts of CM, even in cases with high CM-sIgE levels or a history of anaphylaxis. Performing CM-OFC at younger ages, specifically from infancy, with very low doses, might facilitate the safe reintroduction of CM.
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Affiliation(s)
- Mika Ogata
- Department of Pediatrics, Graduate School of Medical Sciences Kumamoto University, Kumamoto, Japan
- Department of Pediatrics, National Hospital Organization Kumamoto Medical Center, Kumamoto, Japan
- Kumamoto Pediatric Allergy and Immunology Study Group, Kumamoto, Japan
| | - Jun Kido
- Department of Pediatrics, Graduate School of Medical Sciences Kumamoto University, Kumamoto, Japan
- Kumamoto Pediatric Allergy and Immunology Study Group, Kumamoto, Japan
- Department of Pediatrics, Kumamoto University Hospital, Kumamoto, Japan
| | - Suguru Watanabe
- Department of Pediatrics, National Hospital Organization Kumamoto Medical Center, Kumamoto, Japan
- Kumamoto Pediatric Allergy and Immunology Study Group, Kumamoto, Japan
| | - Takanobu Yoshida
- Department of Pediatrics, Graduate School of Medical Sciences Kumamoto University, Kumamoto, Japan
- Kumamoto Pediatric Allergy and Immunology Study Group, Kumamoto, Japan
| | - Natsuko Nishi
- Kumamoto Pediatric Allergy and Immunology Study Group, Kumamoto, Japan
- Department of Pediatrics, Kumamoto University Hospital, Kumamoto, Japan
| | - Sachiko Shimomura
- Kumamoto Pediatric Allergy and Immunology Study Group, Kumamoto, Japan
- Department of Pediatrics, Kumamoto University Hospital, Kumamoto, Japan
| | - Nami Hirai
- Department of Pediatrics, National Hospital Organization Kumamoto Medical Center, Kumamoto, Japan
- Kumamoto Pediatric Allergy and Immunology Study Group, Kumamoto, Japan
| | - Kenichi Tanaka
- Department of Pediatrics, Kumamoto University Hospital, Kumamoto, Japan
| | - Tomoyuki Mizukami
- Department of Pediatrics, National Hospital Organization Kumamoto Medical Center, Kumamoto, Japan
| | - Masaaki Yanai
- Department of Pediatrics, Kumamoto Regional Medical Center, Kumamoto, Japan
| | - Kimitoshi Nakamura
- Department of Pediatrics, Graduate School of Medical Sciences Kumamoto University, Kumamoto, Japan
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Awad Y, Bernard H, Adel-Patient K, Hazebrouck S. New dietary trends and alternative proteins: the emergence of novel food allergens. Curr Opin Clin Nutr Metab Care 2024:00075197-990000000-00177. [PMID: 39417858 DOI: 10.1097/mco.0000000000001081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2024]
Abstract
PURPOSE OF THE REVIEW New dietary trends driven by environmental and health considerations will undoubtedly lead to the emergence of novel food allergens. Assessment of the allergenic risk of new or modified protein-containing food sources and ingredients, as well as surveillance of emerging food allergies, is then required. RECENT FINDINGS Developments of in silico and in vitro models apprehending protein capacity to cross-react with other homologous proteins and to induce a de novo allergic sensitization are ongoing to better integrate multiple parameters such as 3D structural information or major histocompatibility complex class II (MHC-II) presentation propensity. However, the effects of food matrices and food processing still need to be addressed in these models. Consequently, clinical and postmarket surveillance remain of critical importance to alert on emergent food allergies, which are modulated by regional dietary practices. SUMMARY Monitoring of the emergence of food allergens requires close collaborations between allergologists, consumers, patient associations and food safety authorities. We also need to get a consensus on an acceptable level of allergenic risk that offers the possibility to develop and market innovative and sustainable food products.
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Affiliation(s)
- Yara Awad
- Université Paris Saclay, CEA, INRAE, MTS/Laboratoire d'Immuno-Allergie Alimentaire, Gif-sur-Yvette, France
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Ardicli S, Ardicli O, Yazici D, Pat Y, Babayev H, Xiong P, Zeyneloglu C, Garcia-Sanchez A, Shi LL, Viscardi OG, Skolnick S, Ogulur I, Dhir R, Jutel M, Agache I, Janda J, Pali-Schöll I, Nadeau KC, Akdis M, Akdis CA. Epithelial barrier dysfunction and associated diseases in companion animals: Differences and similarities between humans and animals and research needs. Allergy 2024. [PMID: 39417247 DOI: 10.1111/all.16343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2024] [Revised: 09/04/2024] [Accepted: 09/19/2024] [Indexed: 10/19/2024]
Abstract
Since the 1960s, more than 350,000 new chemicals have been introduced into the lives of humans and domestic animals. Many of them have become part of modern life and some are affecting nature as pollutants. Yet, our comprehension of their potential health risks for both humans and animals remains partial. The "epithelial barrier theory" suggests that genetic predisposition and exposure to diverse factors damaging the epithelial barriers contribute to the emergence of allergic and autoimmune conditions. Impaired epithelial barriers, microbial dysbiosis, and tissue inflammation have been observed in a high number of mucosal inflammatory, autoimmune and neuropsychiatric diseases, many of which showed increased prevalence in the last decades. Pets, especially cats and dogs, share living spaces with humans and are exposed to household cleaners, personal care products, air pollutants, and microplastics. The utilisation of cosmetic products and food additives for pets is on the rise, unfortunately, accompanied by less rigorous safety regulations than those governing human products. In this review, we explore the implications of disruptions in epithelial barriers on the well-being of companion animals, drawing comparisons with humans, and endeavour to elucidate the spectrum of diseases that afflict them. In addition, future research areas with the interconnectedness of human, animal, and environmental well-being are highlighted in line with the "One Health" concept.
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Affiliation(s)
- Sena Ardicli
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland
- Department of Genetics, Faculty of Veterinary Medicine, Bursa Uludag University, Bursa, Türkiye
| | - Ozge Ardicli
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland
- Division of Food Processing, Milk and Dairy Products Technology Program, Karacabey Vocational School, Bursa Uludag University, Bursa, Türkiye
| | - Duygu Yazici
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland
| | - Yagiz Pat
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland
| | - Huseyn Babayev
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland
| | - Peng Xiong
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland
- Department of Pediatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P. R. China
| | - Can Zeyneloglu
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland
| | - Asuncion Garcia-Sanchez
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland
- Department of Biomedical & Diagnostic Sciences, Faculty of Medicine, University of Salamanca, Salamanca, Spain
| | - Li-Li Shi
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland
- Department of Otolaryngology-Head and Neck Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P. R. China
| | | | - Stephen Skolnick
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland
- SEED Inc. Co., Los Angeles, California, USA
| | - Ismail Ogulur
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland
| | - Raja Dhir
- SEED Inc. Co., Los Angeles, California, USA
| | - Marek Jutel
- Department of Clinical Immunology, Wrocław Medical University, Wroclaw, Poland
- ALL-MED Medical Research Institute, Wrocław, Poland
| | - Ioana Agache
- Faculty of Medicine, Department of Allergy and Clinical Immunology, Transylvania University, Brasov, Romania
| | - Jozef Janda
- Faculty of Science, Charles University, Prague, Czech Republic
| | - Isabella Pali-Schöll
- The Interuniversity Messerli Research Institute of the University of Veterinary Medicine and Medical University Vienna, Vienna, Austria
- Institute of Pathophysiology and Allergy Research, Center of Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Kari C Nadeau
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA
| | - Mubeccel Akdis
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland
| | - Cezmi A Akdis
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland
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Turner P, Dowdall N. Flying with nut and other food allergies: unravelling fact from fiction. Arch Dis Child 2024:archdischild-2024-327848. [PMID: 39414343 DOI: 10.1136/archdischild-2024-327848] [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: 08/13/2024] [Accepted: 09/16/2024] [Indexed: 10/18/2024]
Abstract
There is a common perception that peanut/tree nut particles can be transmitted through aircraft ventilation systems and pose a significant risk to passengers with food allergies. In fact, food-induced allergic reactions are around 10-100 times less common during flights than 'on the ground', perhaps because of the multiple precautions food-allergic passengers take when flying. We review the evidence for strategies to help prevent accidental allergic reactions while travelling on commercial flights (review registered at PROSPERO, ref CRD42022384341). Research studies (including aircraft simulations) show no evidence to support airborne transmission of nut allergens as a likely phenomenon. Announcements requesting 'nut bans' are not therefore supported, and may instal a false sense of security. The most effective measure is for passengers to wipe down their seat area (including tray table and seat-back entertainment system). Food proteins are often 'sticky' and adhere to these surfaces, from where they are easily transferred to a person's hands and onto food that might be consumed. Airline companies can help to facilitate this through pre-boarding. Passengers at risk of anaphylaxis should be prescribed two adrenaline [epinephrine] autoinjector devices, to carry on their person at all times-including when flying. Airlines should consider including a separate supply of 'general use' adrenaline autoinjectors in the onboard medical kit for use in an emergency. All airlines should have clear policies relating to food allergies which are easily available from their websites or on request. These policies should be applied consistently by both ground staff and cabin crew, in order to provide reassurance to food-allergic passengers and their caregivers.
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Affiliation(s)
- Paul Turner
- National Heart & Lung Institute, Imperial College London, London, UK
| | - Nigel Dowdall
- Aviation Medical Consultancy Limited, Burgess Hill, UK
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58
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Rich HE, Bhutia S, Gonzales de Los Santos F, Entrup GP, Warheit-Niemi HI, Gurczynski SJ, Bame M, Douglas MT, Morris SB, Zemans RL, Lukacs NW, Moore BB. RSV enhances Staphylococcus aureus bacterial growth in the lung. Infect Immun 2024; 92:e0030424. [PMID: 39150268 PMCID: PMC11475690 DOI: 10.1128/iai.00304-24] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2024] [Accepted: 07/23/2024] [Indexed: 08/17/2024] Open
Abstract
Patients coinfected with respiratory syncytial virus (RSV) and bacteria have longer hospital stays, higher risk of intensive care unit admission, and worse outcomes. We describe a model of RSV line 19F/methicillin-resistant Staphylococcus aureus (MRSA) USA300 coinfection that does not impair viral clearance, but prior RSV infection enhances USA300 MRSA bacterial growth in the lung. The increased bacterial burden post-RSV correlates with reduced accumulation of neutrophils and impaired bacterial killing by alveolar macrophages. Surprisingly, reduced neutrophil accumulation is likely not explained by reductions in phagocyte-recruiting chemokines or alterations in proinflammatory cytokine production compared with mice infected with S. aureus alone. Neutrophils from RSV-infected mice retain their ability to migrate toward chemokine signals, and neutrophils from the RSV-infected lung are better able to phagocytize and kill S. aureus ex vivo on a per cell basis. In contrast, while alveolar macrophages could ingest USA300 post-RSV, intracellular bacterial killing was impaired. The RSV/S. aureus coinfected lung promotes a state of overactivation in neutrophils, demonstrated by increased production of reactive oxygen species (ROS) that can drive formation of neutrophil extracellular traps (NETs), resulting in cell death. Mice with RSV/S. aureus coinfection had increased extracellular DNA and protein in bronchoalveolar lavage fluid and histological evidence confirmed NETosis in vivo. Taken together, these data highlight that prior RSV infection can prime the overactivation of neutrophils leading to cell death that impairs neutrophil accumulation in the lung. Additionally, alveolar macrophage killing of bacteria is impaired post-RSV. Together, these defects enhance USA300 MRSA bacterial growth in the lung post-RSV.
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Affiliation(s)
- Helen E. Rich
- Department of Microbiology and Immunology, University of Michigan, Ann Arbor, Michigan, USA
| | - Simran Bhutia
- Department of Microbiology and Immunology, University of Michigan, Ann Arbor, Michigan, USA
| | | | - Gabrielle P. Entrup
- Department of Microbiology and Immunology, University of Michigan, Ann Arbor, Michigan, USA
| | - Helen I. Warheit-Niemi
- Department of Microbiology and Immunology, University of Michigan, Ann Arbor, Michigan, USA
| | - Stephen J. Gurczynski
- Department of Microbiology and Immunology, University of Michigan, Ann Arbor, Michigan, USA
| | - Monica Bame
- Department of Microbiology and Immunology, University of Michigan, Ann Arbor, Michigan, USA
| | - Michael T. Douglas
- Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan, USA
| | - Susan B. Morris
- Department of Pathology, University of Michigan, Ann Arbor, Michigan, USA
| | - Rachel L. Zemans
- Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan, USA
| | - Nicholas W. Lukacs
- Department of Pathology, University of Michigan, Ann Arbor, Michigan, USA
| | - Bethany B. Moore
- Department of Microbiology and Immunology, University of Michigan, Ann Arbor, Michigan, USA
- Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan, USA
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Nho KJ, Shin JH, Baek JE, Choi SW. Transcriptome and RNA sequencing analysis of H9C2 cells exposed to diesel particulate matter. Heliyon 2024; 10:e38082. [PMID: 39386855 PMCID: PMC11462235 DOI: 10.1016/j.heliyon.2024.e38082] [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: 06/18/2024] [Revised: 08/19/2024] [Accepted: 09/17/2024] [Indexed: 10/12/2024] Open
Abstract
Although air pollution has been classified as a risk factor for heart disease, the underlying mechanisms remain nebulous. Therefore, this study investigated the effect of diesel particulate matter (DPM) exposure on cardiomyocytes and identified differentially expressed genes (DEGs) induced by DPM. DPM treatment decreased H9C2 cell viability and increased cytotoxicity. Ten genes showed statistically significant differential expression following treatment with DPM at 25 and 100 μg/ml for 3 h. A total of 273 genes showed statistically significant differential expression following treatment with DPM at 25 and 100 μg/ml for 24 h. Signaling pathway analysis revealed that the DEGs were related to the 'reactive oxygens species,' 'IL-17,' and 'fluid shear stress and atherosclerosis' signaling pathways. Hmox1, Fos, and Fosb genes were significantly upregulated among the selected DEGs. This study identified DPM-induced DEGs and verified the selected genes using qRT-PCR and western blotting. The findings provide insights into the molecular events in cardiomyocytes following exposure to DPM.
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Affiliation(s)
- Kyoung Jin Nho
- Department of Pathogenic Laboratory Research, Institute of Occupation and Environment, Korea Workers' Compensation & Welfare Service, 478, Munemi-ro, Bupyeong-gu, Incheon, 21417, Republic of Korea
| | - Jae Hoon Shin
- Department of Pathogenic Laboratory Research, Institute of Occupation and Environment, Korea Workers' Compensation & Welfare Service, 478, Munemi-ro, Bupyeong-gu, Incheon, 21417, Republic of Korea
| | - Jin Ee Baek
- Department of Pathogenic Laboratory Research, Institute of Occupation and Environment, Korea Workers' Compensation & Welfare Service, 478, Munemi-ro, Bupyeong-gu, Incheon, 21417, Republic of Korea
| | - Sung Won Choi
- Department of Pathogenic Laboratory Research, Institute of Occupation and Environment, Korea Workers' Compensation & Welfare Service, 478, Munemi-ro, Bupyeong-gu, Incheon, 21417, Republic of Korea
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Hu D, Zhou Z, Ge Y, Su X, Tan J. Effect modification of pre-pregnancy body mass index on association of gestational weight gain with birth weight. Heliyon 2024; 10:e38478. [PMID: 39416842 PMCID: PMC11481622 DOI: 10.1016/j.heliyon.2024.e38478] [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: 03/04/2024] [Revised: 09/24/2024] [Accepted: 09/25/2024] [Indexed: 10/19/2024] Open
Abstract
Background Maternal weight status, before or during pregnancy, is a significant determinant of fetus development, birth weight, and the short-term and long-term health outcomes of the offspring. Objective This study aimed to evaluate the effect modification of pre-pregnancy body mass index (BMI) on the associations of gestational weight gain (GWG) and birth weight, as per the latest guidelines from the Chinese Nutrition Society. Methods This is a retrospective cohort study performed in a tertiary hospital with the largest deliveries in Shanghai, China. This study included all women who had singleton live births from 2021 to 2022 (n = 50,391). Data on pre-pregnancy weight, GWG, and birth weight were extracted from the medical register system. Logistic regression models were used to estimate the associations of pre-pregnancy BMI and GWG with the risks of being small for gestational age (SGA) and large for gestational age (LGA). The potential for effect modification by BMI on the associations of GWG and birth weight was assessed using both additive and multiplicative scales. Results Pre-pregnancy BMI and GWG were consistently associated with birth weight. We observed a positive effect modification by underweight on the relationships between insufficient GWG and SGA both in multiplicative (adjusted odds ratio (OR), 2.49, 95 % confidence interval (CI): 2.06-2.99), and additive (relative excess risk due to interaction (RERI), 3.04, 95 % CI: 1.70-4.37) scales. Similarly, obesity was found to modify the effect of excessive GWG on the risk of LGA (adjusted OR, 3.82, 95 % CI, 3.14-4.63; RERI, 14.67, 95 % CI: 7.92-21.41). Conclusion Our findings indicate that increased GWG is associated with a higher risk of abnormal birth weight in singleton pregnancies. Additionally, there is evidence of an additive interaction between pre-pregnancy BMI and GWG on the risk of small for gestational age or large for gestational age.
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Affiliation(s)
- Dan Hu
- Department of Medical Affairs, Shanghai Key Laboratory of Maternal Fetal Medicine, Shanghai First Maternity and Infant Hospital, School of Medicine, Tongji University, Number 2699 West Gaoke Road, Shanghai, China
| | - Zheying Zhou
- Department of Outpatient Medical Records, Shanghai First Maternity and Infant Hospital, School of Medicine, Tongji University, Number 2699 West Gaoke Road, Shanghai, China
| | - Yingjie Ge
- Department of Medical Affairs, Shanghai Key Laboratory of Maternal Fetal Medicine, Shanghai First Maternity and Infant Hospital, School of Medicine, Tongji University, Number 2699 West Gaoke Road, Shanghai, China
| | - Xiujuan Su
- Clinical Research Center, Shanghai Key Laboratory of Maternal Fetal Medicine, Shanghai First Maternity and Infant Hospital, School of Medicine, Tongji University, Number 2699 West Gaoke Road, Shanghai, China
| | - Jing Tan
- Department of Medical Affairs, Shanghai Key Laboratory of Maternal Fetal Medicine, Shanghai First Maternity and Infant Hospital, School of Medicine, Tongji University, Number 2699 West Gaoke Road, Shanghai, China
- Department of Nutrition, Shanghai Key Laboratory of Maternal Fetal Medicine, Shanghai First Maternity and Infant Hospital, School of Medicine, Tongji University, Number 2699 West Gaoke Road, Shanghai, China
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Plessis AA, Cameron SB, Invik R, Hanna M, Mack DP, Cook VE. Real-world experience: a retrospective pediatric chart review to determine why patients and caregivers discontinue oral immunotherapy. ALLERGY, ASTHMA, AND CLINICAL IMMUNOLOGY : OFFICIAL JOURNAL OF THE CANADIAN SOCIETY OF ALLERGY AND CLINICAL IMMUNOLOGY 2024; 20:54. [PMID: 39407324 PMCID: PMC11481366 DOI: 10.1186/s13223-024-00912-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/09/2024] [Accepted: 09/08/2024] [Indexed: 10/19/2024]
Abstract
BACKGROUND Oral immunotherapy (OIT) is an increasingly utilized management strategy for IgE-mediated food allergy. Despite promising efficacy and effectiveness, there is still a lack of data surrounding the reasons for discontinuation of OIT. The primary reason stated in the literature for discontinuation is adverse gastrointestinal effects. Social factors contributing to OIT discontinuation have not been well reported. We hypothesize that social considerations are significant contributors to treatment discontinuation. METHODS We completed a retrospective chart review of 50 patients treated in community pediatric allergy practices who discontinued OIT out of 507 patients who were started on OIT between October 1, 2017-October 27, 2022. Reasons for discontinuation were identified and classified into five main categories: unsafe care decisions, anxiety, adverse effects of OIT, uncontrolled comorbidity and social factors. Categories were not exclusive. RESULTS 507 patients were started on OIT, with data available for 50 patients who discontinued OIT, aged 10 months to 18 years and 2 months. The overall discontinuation rate was 9.8%, of which 40 patients (80%) discontinued during buildup, 9 patients (18%) discontinued during maintenance and one patient on two food OIT discontinued one food during buildup and one during maintenance (2%). Thirty-four patients (68%) had multiple reasons for discontinuing OIT. Social factors were the most common reason for discontinuation and were identified in 32 patients (64%). Twenty-four patients (48%) discontinued OIT due to adverse effects. Gastrointestinal symptoms were the most prevalent, while anaphylaxis contributed to discontinuation in 15 patients (30%). Anxiety led to discontinuation in 17 patients (34%). CONCLUSIONS Our data highlights the importance of social factors and anxiety in the success of OIT completion. Our results support the need to consider not only the patient's medical history, but also their social history and support networks when selecting patients who are good candidates for OIT to optimize the successful completion of OIT.
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Affiliation(s)
- Amy A Plessis
- Department of Pediatrics, Faculty of Medicine, University of British Columbia Island Medical Program, Victoria, BC, Canada
| | - Scott B Cameron
- Division of Allergy, Department of Pediatrics, University of British Columbia, Vancouver, BC, Canada
- Division of Immunology, Department of Pediatrics, University of British Columbia, Vancouver, BC, Canada
- Community Allergy Clinic, Victoria, BC, Canada
| | | | - Mariam Hanna
- Department of Pediatrics, McMaster University, Hamilton, ON, Canada
| | - Douglas P Mack
- Department of Pediatrics, McMaster University, Hamilton, ON, Canada
| | - Victoria E Cook
- Division of Allergy, Department of Pediatrics, University of British Columbia, Vancouver, BC, Canada.
- Division of Immunology, Department of Pediatrics, University of British Columbia, Vancouver, BC, Canada.
- Community Allergy Clinic, Victoria, BC, Canada.
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Fourati S, Reslan A, Bourret J, Casalegno JS, Rahou Y, Chollet L, Pillet S, Tremeaux P, Dossou NC, Gault E, Salmona M, Imbert-Marcille BM, Mirand A, Larrat S, Moisan A, Marot S, Schnuriger A, Veyrenche N, Engelmann I, Handala L, Henry A, Stephan V, Brichler S, Avettand-Fenoel V, Zemali N, Lefeuvre C, Pronier C, Deroche L, Jaffar-Bandjee MC, Mouna L, Francois C, Regueme A, Hartard C, Rogez S, Gallais F, Ly A, Rodriguez C, Dos Santos G, Simon-Loriere E, Schwartz O, Buchrieser J, Pawlotsky JM, Lemoine F, Audureau E, Rameix-Welti MA. Genotypic and phenotypic characterisation of respiratory syncytial virus after nirsevimab breakthrough infections: a large, multicentre, observational, real-world study. THE LANCET. INFECTIOUS DISEASES 2024:S1473-3099(24)00570-X. [PMID: 39419046 DOI: 10.1016/s1473-3099(24)00570-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2024] [Revised: 08/19/2024] [Accepted: 08/20/2024] [Indexed: 10/19/2024]
Abstract
BACKGROUND Nirsevimab, a long-acting monoclonal antibody, has been approved for the prevention of respiratory syncytial virus (RSV) infection in infants. In France, more than 210 000 single doses were administered in infants younger than 1 year during the 2023-24 season. In this context, the selection and spread of escape variants might be a concern. Here, we aimed to characterise RSV associated with breakthrough infection. METHODS We did a multicentre, national, observational study in France during the 2023-24 RSV season in RSV-infected infants (aged <1 year) who either received or did not receive a dose of nirsevimab before their first RSV season. We excluded infants with insufficient information about nirsevimab treatment or without parental consent. We used respiratory samples collected in each laboratory for full-length RSV RNA sequencing to analyse changes in the nirsevimab binding site Ø. We tested clinical RSV isolates for neutralisation by nirsevimab. We analysed F candidate substitutions by fusion-inhibition assay. FINDINGS Of the 695 RSV infected infants, we analysed 545 (78%) full-length RSV genome sequences: 260 (48%) from nirsevimab-treated breakthrough infections (236 [91%] RSV-A and 24 [9%] RSV-B) and 285 (52%) from untreated RSV-infected infants (236 [83%] RSV-A and 49 [17%] RSV-B). Analysis of RSV-A did not reveal any substitution in site Ø known to be associated with resistance to nirsevimab. Two (8%) of 24 RSV-B breakthrough infections had resistance-associated substitutions: F:N208D (dominant resistance-associated substitution) and a newly described F:I64M plus F:K65R combination (minority resistance-associated substitution), both of which induced high levels of resistance in the fusion-inhibition assay. INTERPRETATION This study is, to the best of our knowledge, the largest genotypic and phenotypic surveillance study of nirsevimab breakthrough infections to date. Nirsevimab breakthrough variants remain very rare despite the drug's widespread use. The detection of resistance-associated substitutions in the RSV-B F protein highlights the importance of active molecular surveillance. FUNDING ANRS Maladies Infectieuses Emergentes and the French Ministry of Health and Prevention.
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Affiliation(s)
- Slim Fourati
- Department of Virology, Hôpitaux Universitaires Henri Mondor, AP-HP, Créteil, France; Université Paris-Est-Créteil, Créteil, France; INSERM U955, Team Viruses, Hepatology, Cancer, Créteil, France.
| | - Alawiya Reslan
- M3P, UMR 1173 (2I), INSERM, Université de Versailles St Quentin, Université Paris Saclay, Paris, France; M3P Centre National de Référence Virus des Infections Respiratoire Institut Pasteur Université Paris Cité, Paris, France
| | - Jérome Bourret
- M3P Centre National de Référence Virus des Infections Respiratoire Institut Pasteur Université Paris Cité, Paris, France
| | - Jean-Sébastien Casalegno
- Laboratoire de Virologie, Institut des Agents Infectieux, Centre de Biologie et Pathologie Nord, Hôpital de la Croix-Rousse, Hospices Civils de Lyon, Lyon France, France
| | - Yannis Rahou
- M3P, UMR 1173 (2I), INSERM, Université de Versailles St Quentin, Université Paris Saclay, Paris, France; M3P Centre National de Référence Virus des Infections Respiratoire Institut Pasteur Université Paris Cité, Paris, France
| | - Lionel Chollet
- Laboratoire de Biologie Médicale Centre Hospitalier Intercommunal de Toulon, Toulon, France
| | - Sylvie Pillet
- Service des Agents Infectieux et d'Hygiène-Plateau de Biologie Hôpital Nord-CHU de Saint-Etienne, France, Saint-Etienne, France
| | - Pauline Tremeaux
- Laboratoire de Virologie, CHU Toulouse, France, Toulouse France, France
| | - Nefert Candace Dossou
- Normandie, INSERM, Normandie Univ, DYNAMICURE UMR1311, CHU Caen, Department of Virology, Caen, France
| | - Elyanne Gault
- M3P, UMR 1173 (2I), INSERM, Université de Versailles St Quentin, Université Paris Saclay, Paris, France; Virology Department, Hôpital Ambroise Paré, Paris, France
| | - Maud Salmona
- Virology Department, Hôpital Saint Louis, INSIGHT U976, INSERM, Université Paris-Cité, Paris, France
| | | | - Audrey Mirand
- Virology Department, CHU de Clermont-Ferrand, Clermond-Ferrand, France
| | - Sylvie Larrat
- Université Grenoble Alpes, Laboratoire de Virologie, Institut de Biologie-Pathologie, Centre Hospitalier Universitaire Grenoble Alpes, Grenoble, France
| | - Alice Moisan
- Université Rouen Normandie, Université de Caen Normandie, INSERM, Normandie Université, DYNAMICURE UMR 1311, CHU Rouen, Department of Virology, Rouen, France
| | - Stéphane Marot
- Sorbonne Université; APHP Virologie Pitié-Salpêtrière, Paris Ile de France, France
| | - Aurélie Schnuriger
- Sorbonne Université, APHP Virologie St Antoine, Tenon, Trousseau, Paris Ile de France, France
| | | | - Ilka Engelmann
- Pathogenesis and Control of Chronic and Emerging Infections, Université Montpellier, INSERM, Établissement Français du Sang, CHU Montpellier, Montpellier, France
| | - Lynda Handala
- Virology Unit, Department of Bacteriology, Virology and Hospital Hygiene, University Hospital of Tours, Tours, France
| | - Amandine Henry
- Laboratoire de Biologie Médicale, Microbiologie, CH Victor Dupouy, Argenteuil, France
| | | | - Ségolène Brichler
- Service de Microbiologie Clinique, CHU Avicenne, AP-HP, Bobigny, Bobigny, France
| | | | - Nael Zemali
- CHU de Bordeaux, Service de Virologie, Bordeaux, France
| | | | | | - Luc Deroche
- Virology Department, CHU de Poitiers, Poitiers, France
| | | | - Lina Mouna
- Virology Department, Hôpital Paul Brousse, INSERM U1193, AP-HP, Université Paris Saclay, Paris, France
| | - Catherine Francois
- Laboratoire de Virologie, Centre de Biologie Humaine-CHU Amiens, Université Picardie Jules Verne, Amiens, France
| | - Alexandre Regueme
- Université Lille, CHU de Lille, Laboratoire de Virologie ULR3610, Lille, France
| | - Cédric Hartard
- Laboratoire de Virologie, CHRU de Nancy Brabois, Université de LorraineVandœuvre-lès-Nancy, France
| | - Sylvie Rogez
- Virology Department, CHU de Limoges, Limoges, France
| | | | - Arnaud Ly
- Department of Virology, Hôpitaux Universitaires Henri Mondor, AP-HP, Créteil, France
| | - Christophe Rodriguez
- Department of Virology, Hôpitaux Universitaires Henri Mondor, AP-HP, Créteil, France; Université Paris-Est-Créteil, Créteil, France; INSERM U955, Team Viruses, Hepatology, Cancer, Créteil, France
| | | | - Etienne Simon-Loriere
- Evolutionary Genomics of RNA Viruses, Institut Pasteur, Université Paris Cité, Paris, France
| | - Olivier Schwartz
- Virus and Immunity Unit, Institut Pasteur, Université Paris Cité, Paris, France
| | - Julian Buchrieser
- Virus and Immunity Unit, Institut Pasteur, Université Paris Cité, Paris, France
| | - Jean-MiIchel Pawlotsky
- Department of Virology, Hôpitaux Universitaires Henri Mondor, AP-HP, Créteil, France; Université Paris-Est-Créteil, Créteil, France; INSERM U955, Team Viruses, Hepatology, Cancer, Créteil, France
| | - Frédéric Lemoine
- M3P Centre National de Référence Virus des Infections Respiratoire Institut Pasteur Université Paris Cité, Paris, France; Bioinformatics and Biostatistics Hub, Institut Pasteur, Université Paris Cité, Paris, France
| | - Etienne Audureau
- Université Paris-Est-Créteil, Créteil, France; Clinical Research Unit Mondor, Hôpitaux Universitaires Henri Mondor, AP-HP, IMRB INSERM U955, Team CEpiA, Créteil, France
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Eusebe C, Dauger S, Leger PL, Houdouin V, Renolleau S, Amat F. Features of children with critical asthma hospitalized in a pediatric intensive care unit: Results from the ICU-3A study. Pediatr Pulmonol 2024. [PMID: 39400483 DOI: 10.1002/ppul.27322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Revised: 09/16/2024] [Accepted: 10/05/2024] [Indexed: 10/15/2024]
Abstract
INTRODUCTION Despite improvements in long-term asthma treatment, an increasing number of children are being hospitalized in pediatric intensive care units (PICU) for asthma. The main objective of this study was to describe a recent cohort of children hospitalized in PICU for asthma to identify risk factors associated with a need for respiratory support, and multiple PICU stays. METHODS We conducted a retrospective cohort study in three PICUs in Paris (intensive care units 3A Study), using medical files of children hospitalized for asthma between February 2019 and October 2020. Need for respiratory support was defined by the need for high-flow nasal cannula or mechanical ventilation (MV) (either noninvasive [NIV] or invasive [IMV]). RESULTS During the study period, 252 stays corresponding to 234 patients were analyzed. MV was required in 17.5% of stays, for significantly younger patients (2.37 vs. 4.18 years, p = 0.002). On multivariate analysis, a higher risk of progression to a need for respiratory support was found for children requiring magnesium sulfate or oxygen therapy ≥6 L/mn before PICU admission (RR 4.48; CI95% [1.85-10.89]; p = 0.001, and RR 2.86; CI95% [1.13-7.22]; p = 0.03, respectively), and those with atelectasis detected on chest radiography (RR 3.38; CI95% [1.43-8.00]; p < 0.01). Multiple PICU stays were associated with greater social deprivation (RR for French Deprivation Index 1.25; CI95% [1.03-1.51]; p = 0.03). CONCLUSION Children experiencing social deprivation are at greater risk of multiple PICU stays for severe asthma. After transfer to PICU, children with chest radiograph detected atelectasis on admission are at higher risk of needing respiratory support.
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Affiliation(s)
- Claire Eusebe
- Pediatric Pulmonology and Allergology Department, Robert Debré Children's Hospital, Groupe Hospitalo-universitaire AP-HP Nord-Paris Cité University, Paris, France
| | - Stéphane Dauger
- Paediatric Intensive Care Unit and Inserm U1141, Robert-Debré University Hospital, AP-HP, Paris Cité University, Paris, France
| | - Pierre-Louis Leger
- Assistance Publique-Hôpitaux de Paris, Paediatric Intensive Care Unit, Armand Trousseau University Hospital, Sorbonne Université, Paris, France
| | - Véronique Houdouin
- Pediatric Pulmonology and Allergology Department, Robert Debré Children's Hospital, Groupe Hospitalo-universitaire AP-HP Nord-Paris Cité University, Paris, France
- Faculté Paris Diderot, UMR_S976, INSERM, Paris, France
| | - Sylvain Renolleau
- M3C-Necker Enfants Malades, AP-HP, Paris Cité University, Paris, France
| | - Flore Amat
- Pediatric Pulmonology and Allergology Department, Robert Debré Children's Hospital, Groupe Hospitalo-universitaire AP-HP Nord-Paris Cité University, Paris, France
- INSERM 1018-Center de recherche en Epidémiologie et Santé des Populations, Epidémiologie Respiratoire Intégrative, Villejuif, France
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64
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Beerweiler CC, Salvermoser M, Theodorou J, Böck A, Sattler F, Kulig P, Tosevski V, Schaub B. Farm-dust mediated protection of childhood asthma: Mass cytometry reveals novel cellular regulation. Allergy 2024. [PMID: 39400913 DOI: 10.1111/all.16347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2024] [Revised: 08/06/2024] [Accepted: 08/20/2024] [Indexed: 10/15/2024]
Abstract
BACKGROUND Farm-dust mediated asthma protection in childhood was replicated in numerous epidemiological studies. Central immune mechanisms are not fully understood. This exploratory study aimed to disentangle underlying immunological regulation of farm-dust mediated protection in peripheral blood on a single-cell level. METHODS Single-cell protein expression of in vitro farm-dust stimulated and unstimulated cells from allergic asthmatics and healthy controls were measured using mass cytometry. Analysis of innate and adaptive cellular proportions (linear regression) and T-cell proliferation was performed. Functional marker intensity was investigated using Earth Mover's Distance and the Monte Carlo permutation test. RESULTS Farm-dust stimulation induced cell type-specific regulation: Key-features of farm-dust stimulation comprised opposing regulation of immune-cell frequencies (downregulated innate cell populations (monocytes/DCs (p < .001), NK-cells (p < .05)) and upregulated adaptive populations (B-cells, CD4+ T-cells (both p < .05)), reduced CD4+ CD25- T-cell proliferation, and differential cell type-specific functional marker expression. Following stimulation, functional marker analysis revealed induced activation (CD25) in T-cells and NK-T-cells in both phenotypes even after correction for multiple testing. Cytotoxicity (GZMB) and inflammation (pERK1/2, pp38) related markers were reduced in T-cells exclusively in asthmatic children. Asthma-associated markers (Gata3, RORγ, and HLA-DR) were reduced in T- and innate- cell populations of asthmatics following stimulation. B-cells displayed a phenotypically independent increase of diverse functional markers upon farm-dust stimulation. CONCLUSIONS This study mimicking in vivo environmental exposure identified a novel profile of immune-regulatory markers using mass cytometry demonstrating decreased asthma-associated markers following farm-dust stimulation. These findings may be key for further studies on asthma prevention in childhood.
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Affiliation(s)
- Claudia Carina Beerweiler
- Department of Pediatrics, Dr. von Hauner Children's Hospital, LMU University Hospital, LMU Munich, Munich, Germany
- Member of German Center for Lung Research - DZL, LMU Munich, Munich, Germany
| | - Michael Salvermoser
- Department of Pediatrics, Dr. von Hauner Children's Hospital, LMU University Hospital, LMU Munich, Munich, Germany
| | - Johanna Theodorou
- Department of Pediatrics, Dr. von Hauner Children's Hospital, LMU University Hospital, LMU Munich, Munich, Germany
- Member of German Center for Lung Research - DZL, LMU Munich, Munich, Germany
| | - Andreas Böck
- Department of Pediatrics, Dr. von Hauner Children's Hospital, LMU University Hospital, LMU Munich, Munich, Germany
- Member of German Center for Child and Adolescent Health-DZKJ, LMU, Munich, Germany
| | - Franziska Sattler
- Department of Pediatrics, Dr. von Hauner Children's Hospital, LMU University Hospital, LMU Munich, Munich, Germany
| | - Paulina Kulig
- Mass Cytometry Facility, University of Zurich, Zurich, Switzerland
| | - Vinko Tosevski
- Mass Cytometry Facility, University of Zurich, Zurich, Switzerland
| | - Bianca Schaub
- Department of Pediatrics, Dr. von Hauner Children's Hospital, LMU University Hospital, LMU Munich, Munich, Germany
- Member of German Center for Lung Research - DZL, LMU Munich, Munich, Germany
- Member of German Center for Child and Adolescent Health-DZKJ, LMU, Munich, Germany
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65
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Yang BC, Castells M. Medical algorithm: Diagnosis and treatment of drug hypersensitivity reactions to biologicals, 2024 update. Allergy 2024. [PMID: 39400368 DOI: 10.1111/all.16353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2024] [Revised: 09/15/2024] [Accepted: 09/30/2024] [Indexed: 10/15/2024]
Affiliation(s)
- Barbara Carolyn Yang
- Division of Rheumatology, Immunology and Allergy, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Mariana Castells
- Division of Rheumatology, Immunology and Allergy, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
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Cha JH, Hwang JK, Na JY, Ryu S, Oh JW, Choi YJ. Association between preterm birth and asthma and atopic dermatitis in preschool children: a nationwide population-based study. Eur J Pediatr 2024:10.1007/s00431-024-05747-5. [PMID: 39394496 DOI: 10.1007/s00431-024-05747-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/23/2024] [Revised: 07/30/2024] [Accepted: 08/26/2024] [Indexed: 10/13/2024]
Abstract
Asthma and atopic dermatitis (AD) are representative chronic diseases in childhood. This study aimed to investigate the impact of preterm birth on the incidence and severity of asthma and AD in children, as well as to identify neonatal risk factors for asthma and AD. We used health claims data recorded between 2007 and 2014 in the Korean National Health Insurance Service database. We recruited 2,224,476 infants born between 2007 and 2014 and divided them into three groups: 3518 of extremely preterm (EP) infants (< 28 weeks of gestational age (GA)), 82,579 of other preterm (OP) infants (28-36 weeks of GA), and 2,138,379 of full-term (FT) infants (> 37 weeks of GA). We defined asthma as > 3 episodes of clinical visits in a year before 6 years of age, early asthma as onset at < 2 years of age, and severe asthma as > 1 event of status asthmaticus or admission to a hospital via an emergency room. AD was defined as ≥ 3 diagnoses in a year before 6 years of age, early AD as onset at < 2 years of age, and severe AD as prescription of high-potency topical steroids or immunosuppressants. An association of preterm birth with asthma and AD was assessed using inverse probability of treatment-weighted multivariable Cox regression analysis. Cardiorespiratory conditions, such as respiratory distress syndrome, bronchopulmonary dysplasia, patent ductus arteriosus, and pulmonary hypertension, significantly increased the risk of asthma. Specifically, bronchopulmonary dysplasia emerged as a significant risk factor for both severe and early-onset asthma (odds ratio (OR) 1.36, 95% CI 1.21-1.37 for severe asthma; OR 1.55, 95% CI 1.30-1.85 for early asthma), while it was associated with a decreased risk of AD (OR 0.86, 95% CI 0.80-0.92). Neonatal sepsis, jaundice, and retinopathy of prematurity were also identified as significant risk factors for later asthma. A stepwise increase in the risk of asthma with an increasing degree of prematurity was observed, with the OP group showing an adjusted hazard ratio (aHR) of 1.24 (95% CI: 1.22-1.26) and the EP group showing an aHR of 1.51 (95% CI: 1.41-1.63). Conversely, preterm birth was inversely associated with the risk of AD, with aHRs of 0.73 (95% CI: 0.67-0.79) for the OP group and 0.88 (95% CI: 0.87-0.89) for the EP group. Conclusion Preterm children have a significantly higher risk of asthma and lower risk of AD, with cardiorespiratory conditions significantly increasing the risk of asthma. Thus, we highlight the need for targeted respiratory management strategies for this high-risk population. What is Known: •Asthma and atopic dermatitis are prevalent chronic diseases in childhood, reducing the quality of life of children. •Preterm birth was associated with an increased risk of asthma, but few large nationwide studies. •Research on the relationship between preterm birth and pediatric atopic dermatitis is controversial, with few large nationwide studies. What is New: • Preterm children, especially born before 28 weeks of gestational age, had a significantly higher risk of asthma and lower risk of atopic dermatitis. • Cardiorespiratory comorbidities such as RDS, BPD, PDA, and pulmonary hypertension in neonatal period are prominent risk factors for asthma. • Preterm children are vulnerable to both early-onset and severe asthma.
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Affiliation(s)
- Jong Ho Cha
- Department of Pediatrics, Hanyang University Seoul Hospital, Hanyang University College of Medicine, Seoul, Korea
| | - Jae Kyoon Hwang
- Department of Pediatrics, Hanyang University Guri Hospital, Hanyang University College of Medicine, Guri, Korea
- Department of Pediatrics, College of Medicine, Hanyang University, Seoul, Korea
| | - Jae Yoon Na
- Department of Pediatrics, Hanyang University Seoul Hospital, Hanyang University College of Medicine, Seoul, Korea
- Department of Pediatrics, College of Medicine, Hanyang University, Seoul, Korea
| | - Soorak Ryu
- Biostatistical Consulting and Research Lab, Medical Research Collaborating Center, Hanyang University, Seoul, Korea
| | - Jae-Won Oh
- Department of Pediatrics, Hanyang University Guri Hospital, Hanyang University College of Medicine, Guri, Korea
- Department of Pediatrics, College of Medicine, Hanyang University, Seoul, Korea
| | - Young-Jin Choi
- Department of Pediatrics, Hanyang University Guri Hospital, Hanyang University College of Medicine, Guri, Korea.
- Department of Pediatrics, College of Medicine, Hanyang University, Seoul, Korea.
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Pesqué D, Planella-Fontanillas N, Borrego L, Sanz-Sánchez T, Zaragoza-Ninet V, Serra-Baldrich E, Miquel-Miquel FJ, Silvestre-Salvador JF, Córdoba-Guijarro S, Sánchez-Gilo A, Mercader-García P, Navarro-Triviño FJ, Ortiz-de-Frutos FJ, Tous-Romero F, Rodríguez-Serna M, Melé-Ninot G, Barrabés-Torrella C, Ruiz-González I, Pastor-Nieto MA, Carrascosa-Carrillo JM, Gómez-de-la-Fuente E, Sánchez-Pedreño-Guillén P, Sánchez-Pérez J, Pereyra-Rodríguez JJ, Gatica-Ortega ME, González-Pérez R, Pujol RM, Descalzo MÁG, García-Doval I, Giménez-Arnau AM. Patch test results to the Spanish baseline patch test series according to age groups: A multicentric prospective study from 2019 to 2023. Contact Dermatitis 2024. [PMID: 39394969 DOI: 10.1111/cod.14702] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2024] [Revised: 08/08/2024] [Accepted: 09/12/2024] [Indexed: 10/14/2024]
Abstract
INTRODUCTION Patch test results may be influenced by age-related factors. However, there is still discordant evidence between age and patch test results. OBJECTIVES We aim to evaluate the patch test results reflecting skin sensitisation, their relevance and association with clinical features by age group. METHODS Prospective multicentric study of all patients patch tested with the Spanish baseline series in participating centres. Age groups were pre-defined as children (0- to 11-years), adolescents (12- to 18-years), young adults (19- to 30-years), middle-aged adults (31- to 65-years) and older adults (≥66-years). Occurrence of sensitisation, relevance and clinical features were compared by age group. Factors associated with skin sensitisation were investigated with multivariate logistic regression. RESULTS A total of 13 368 patients were patch-tested. Differences in positive patch test results and relevance by age were detected with the highest proportion in middle-aged adults. Age-related trend differences were found for nickel, potassium dichromate, caines, colophony, Myroxylon pereirae resin, 2-hydroxyethyl methacrylate and limonene hydroperoxide. The multivariate logistic analysis (adjusted for sex, atopic dermatitis, body location and occupational dermatitis) showed an association between the age group of 31-65 (OR: 1.41, 95% CI: 1.26-1.58) and above 66-years (OR: 1.15, 95% CI: 1.01-1.32) with a higher proportion of positive results, compared with young adults. CONCLUSIONS Positive patch test results vary according to age, with the highest occurrence in middle-aged adults. Most haptens did not present age-related differences, reinforcing the use of baseline series regardless of age.
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Affiliation(s)
- David Pesqué
- Servicio de Dermatología, Hospital del Mar Research Institute, Barcelona, Spain
- Departament de Medicina, Universitat Autònoma de Barcelona (UAB), Barcelona, Spain
| | - Nidia Planella-Fontanillas
- Servicio de Dermatología, Hospital del Mar Research Institute, Barcelona, Spain
- Departament de Medicina, Universitat Autònoma de Barcelona (UAB), Barcelona, Spain
| | - Leopoldo Borrego
- Servicio de Dermatología, Hospital Universitario Insular de Gran Canaria, Universidad de Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Spain
| | - Tatiana Sanz-Sánchez
- Servicio de Dermatología, Hospital Universitario Infanta Sofía, Universidad Europea, Madrid, Spain
| | | | | | | | | | | | - Araceli Sánchez-Gilo
- Servicio de Dermatología, Hospital Universitario Rey Juan Carlos, Móstoles, Spain
| | - Pedro Mercader-García
- Servicio de Dermatología, Hospital General Universitario José María Morales Meseguer, Murcia, Spain
| | | | | | | | | | - Gemma Melé-Ninot
- Servicio de Dermatología, Hospital Universitari Sagrat Cor, Grupo Quirónsalud, Barcelona, Spain
| | | | | | - María Antonia Pastor-Nieto
- Servicio de Dermatología, Hospital Universitario de Guadalajara, Guadalajara, Spain
- Servicio de Dermatología, Hospital Fundación Jiménez-Díaz, Madrid, Spain
| | | | | | | | | | - José Juan Pereyra-Rodríguez
- Servicio de Dermatología, Hospital Universitario Virgen del Rocío, Sevilla, Spain
- Facultad de Medicina, Universidad de Sevilla, Sevilla, Spain
| | | | - Ricardo González-Pérez
- Servicio de Dermatología, Hospital Universitario Araba, Universidad del País Vasco, Vitoria-Gasteiz, Spain
| | - Ramon Maria Pujol
- Servicio de Dermatología, Hospital del Mar Research Institute, Barcelona, Spain
- Universitat Pompeu Fabra, Barcelona, Spain
| | | | - Ignacio García-Doval
- Unidad de Investigación, Academia Española de Dermatología y Venereología, Madrid, Spain
- Servicio de Dermatología, Complexo Hospitalario Universitario de Vigo, Vigo, Spain
| | - Ana María Giménez-Arnau
- Servicio de Dermatología, Hospital del Mar Research Institute, Barcelona, Spain
- Universitat Pompeu Fabra, Barcelona, Spain
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Shao M, Sun J, Zheng Q. Efficacy and safety of Montelukast-Levocetirizine Combination Therapy in Combined Allergic Rhinitis and Asthma Syndrome: A Systematic Review and Meta-Analysis. J Asthma 2024:1-13. [PMID: 39394937 DOI: 10.1080/02770903.2024.2415544] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2024] [Revised: 10/06/2024] [Accepted: 10/07/2024] [Indexed: 10/14/2024]
Abstract
OBJECTIVE This meta-analysis aims to evaluate the efficacy and safety of montelukast combined with levocetirizine in the treatment of allergic rhinitis with asthma, and to provide objective and effective evidence-based medical evidence for clinical use. DATA SOURCES Pubmed, Web of Science, Cochrane Library, WANFANG DATA, CNKI, and Chinese BioMedical Literature Database were retrieved to identify records related to Montelukast combined with levocetirizine in the treatment of allergic rhinitis with asthma. STUDY SELECTIONS First, the eligibility criteria were employed to screen search results. Then, two investigators independently assessed titles, abstracts, and the full text of all retrieved references to identify potentially eligible studies. RESULTS As of 2024-02-03, a total of 6 articles were included in this meta-analysis, covering 2950 patients with allergic rhinitis with asthma. The meta-analysis results exhibited a pooled NSS of -1.28 (95%CI: -1.64 to -0.92), suggesting that the combination of montelukast and levocetirizine was effective in the treatment of nasal symptoms of allergic rhinitis complicated with asthma. The meta-analysis of controlled trials showed that the SMD of NSS in the group of Montelukast combined with levocetirizine was -2.56 (95%CI: -2.77 to -2.35). The result indicated that compared with the control group, the combination of montelukast with levocetirizine significantly improved the symptoms of allergic rhinitis. CONCLUSION In summary, this meta-analysis demonstrated the efficacy of montelukast combined with levocetirizine in the treatment of nasal symptoms in AR with asthma, indicating that the combination of montelukast with levocetirizine is more effective in improving symptoms of allergic rhinitis than monotherapy and has good safety.
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Affiliation(s)
- Min Shao
- Department of Otolaryngology Head and Neck Surgery, Yuyao People's Hospital of Zhejiang Province, Yuyao, Zhejiang, China
| | - Jianing Sun
- Department of Otolaryngology Head and Neck Surgery, Yuyao People's Hospital of Zhejiang Province, Yuyao, Zhejiang, China
| | - Qiling Zheng
- Department of Otolaryngology Head and Neck Surgery, Yuyao People's Hospital of Zhejiang Province, Yuyao, Zhejiang, China
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Yang Z, Feng G, Gao X, Yan X, Li Y, Wang Y, Li S, Jiang Y, Zhao S, Zhao H, Chen ZJ. Maternal adiposity and perinatal and offspring outcomes: an umbrella review. Nat Hum Behav 2024:10.1038/s41562-024-01994-6. [PMID: 39394444 DOI: 10.1038/s41562-024-01994-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2024] [Accepted: 08/30/2024] [Indexed: 10/13/2024]
Abstract
Maternal adiposity deleteriously affects obstetrical health and has been associated with long-term adverse consequences in offspring. Here we conducted an umbrella review encompassing 194 observational meta-analyses, 10 Mendelian randomization studies and 748 interventional meta-analyses to appraise the published evidence on the associations between maternal adiposity and perinatal and offspring outcomes. Evidence grading suggested that 17 (8.8%) observational meta-analyses were supported by convincing evidence for 12 outcomes: maternal adiposity was associated with an increased risk of caesarean delivery following labour induction, infant mortality, Apgar score <7 at 1 min, antenatal depression, offspring overweight and obesity, early timing of puberty onset in daughters, attention deficit hyperactivity disorder, cerebral palsy, congenital heart disease and spina bifida (OR/RR ranging from 1.14 to 2.31), as well as increased offspring body fat percent and fat mass (SMD 0.31 and 0.35, respectively). Among these outcomes, interventional meta-analyses supported that maternal weight loss interventions significantly reduced the risk of antenatal depression but not low Apgar scores; these interventions also could not reduce offspring fat mass or body fat percent. Evidence from Mendelian randomization studies supported a causal relationship between maternal adiposity and gestational diabetes mellitus, preeclampsia, birth size and offspring adiposity. Our findings highlight that while observational meta-analyses reveal associations between maternal adiposity and various adverse perinatal and offspring outcomes, convincing, unbiased evidence or support from Mendelian randomization studies is limited. Maternal pre-conceptional and prenatal weight loss interventions can reduce some, but not all, of these adverse effects.
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Affiliation(s)
- Ziyi Yang
- State Key Laboratory of Reproductive Medicine and Offspring Health, Center for Reproductive Medicine, Institute of Women, Children and Reproductive Health, Shandong University, Jinan, China
| | - Gengchen Feng
- State Key Laboratory of Reproductive Medicine and Offspring Health, Center for Reproductive Medicine, Institute of Women, Children and Reproductive Health, Shandong University, Jinan, China
| | - Xueying Gao
- National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, China
- Department of Reproductive Medicine, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Key Laboratory for Assisted Reproduction and Reproductive Genetics, Shanghai, China
| | - Xueqi Yan
- State Key Laboratory of Reproductive Medicine and Offspring Health, Center for Reproductive Medicine, Institute of Women, Children and Reproductive Health, Shandong University, Jinan, China
| | - Yimeng Li
- State Key Laboratory of Reproductive Medicine and Offspring Health, Center for Reproductive Medicine, Institute of Women, Children and Reproductive Health, Shandong University, Jinan, China
| | - Yuteng Wang
- State Key Laboratory of Reproductive Medicine and Offspring Health, Center for Reproductive Medicine, Institute of Women, Children and Reproductive Health, Shandong University, Jinan, China
| | - Shumin Li
- National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, China
- Department of Reproductive Medicine, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Key Laboratory for Assisted Reproduction and Reproductive Genetics, Shanghai, China
| | - Yonghui Jiang
- State Key Laboratory of Reproductive Medicine and Offspring Health, Center for Reproductive Medicine, Institute of Women, Children and Reproductive Health, Shandong University, Jinan, China
| | - Shigang Zhao
- State Key Laboratory of Reproductive Medicine and Offspring Health, Center for Reproductive Medicine, Institute of Women, Children and Reproductive Health, Shandong University, Jinan, China.
- National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, China.
- Key Laboratory of Reproductive Endocrinology (Shandong University), Ministry of Education, Jinan, China.
- Shandong Technology Innovation Center for Reproductive Health, Jinan, China.
- Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, China.
- Shandong Key Laboratory of Reproductive Medicine, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China.
- Research Unit of Gametogenesis and Health of ART-Offspring, Chinese Academy of Medical Sciences, Jinan, China.
| | - Han Zhao
- State Key Laboratory of Reproductive Medicine and Offspring Health, Center for Reproductive Medicine, Institute of Women, Children and Reproductive Health, Shandong University, Jinan, China.
- National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, China.
- Key Laboratory of Reproductive Endocrinology (Shandong University), Ministry of Education, Jinan, China.
- Shandong Technology Innovation Center for Reproductive Health, Jinan, China.
- Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, China.
- Shandong Key Laboratory of Reproductive Medicine, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China.
- Research Unit of Gametogenesis and Health of ART-Offspring, Chinese Academy of Medical Sciences, Jinan, China.
| | - Zi-Jiang Chen
- State Key Laboratory of Reproductive Medicine and Offspring Health, Center for Reproductive Medicine, Institute of Women, Children and Reproductive Health, Shandong University, Jinan, China.
- National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, China.
- Department of Reproductive Medicine, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
- Shanghai Key Laboratory for Assisted Reproduction and Reproductive Genetics, Shanghai, China.
- Key Laboratory of Reproductive Endocrinology (Shandong University), Ministry of Education, Jinan, China.
- Shandong Technology Innovation Center for Reproductive Health, Jinan, China.
- Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, China.
- Shandong Key Laboratory of Reproductive Medicine, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China.
- Research Unit of Gametogenesis and Health of ART-Offspring, Chinese Academy of Medical Sciences, Jinan, China.
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Shahpoury P, Lelieveld S, Srivastava D, Baccarini A, Mastin J, Berkemeier T, Celo V, Dabek-Zlotorzynska E, Harner T, Lammel G, Nenes A. Seasonal Changes in the Oxidative Potential of Urban Air Pollutants: The Influence of Emission Sources and Proton- and Ligand-Mediated Dissolution of Transition Metals. ACS ES&T AIR 2024; 1:1262-1275. [PMID: 39417159 PMCID: PMC11474821 DOI: 10.1021/acsestair.4c00093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/29/2024] [Revised: 08/12/2024] [Accepted: 08/13/2024] [Indexed: 10/19/2024]
Abstract
The inhalation of fine particulate matter (PM2.5) is a major contributor to adverse health effects from air pollution worldwide. An important toxicity pathway is thought to follow oxidative stress from the formation of exogenous reactive oxygen species (ROS) in the body, a proxy of which is oxidative potential (OP). As redox-active transition metals and organic species are important drivers of OP in urban environments, we investigate how seasonal changes in emission sources, aerosol chemical composition, acidity, and metal dissolution influence OP dynamics. Using a kinetic model of the lung redox chemistry, we predicted ROS (O2 •-, H2O2, •OH) formation with input parameters comprising the ambient concentrations of PM2.5, water-soluble Fe and Cu, secondary organic matter, nitrogen dioxide, and ozone across two years and two urban sites in Canada. Particulate species were the largest contributors to ROS production. Soluble Fe and Cu had their highest and lowest values in summer and winter, and changes in Fe solubility were closely linked to seasonal variations in chemical aging, the acidity of aerosol, and organic ligand levels. The results indicate three conditions that influence OP across various seasons: (a) low aerosol pH and high organic ligand levels leading to the highest OP in summer, (b) opposite trends leading to the lowest OP in winter, and (c) intermediate conditions corresponding to moderate OP in spring and fall. This study highlights how atmospheric chemical aging modifies the oxidative burden of urban air pollutants, resulting in a seasonal cycle with a potential effect on population health.
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Affiliation(s)
- Pourya Shahpoury
- Environmental
and Life Sciences, Trent University, Peterborough K9L0G2, Canada
| | - Steven Lelieveld
- Multiphase
Chemistry Department, Max Planck Institute
for Chemistry, Mainz 55128, Germany
| | - Deepchandra Srivastava
- Division
of Environmental Health and Risk Management, School of Geography,
Earth & Environmental Sciences, University
of Birmingham, Edgbaston, Birmingham B152TT, United Kingdom
| | - Andrea Baccarini
- Laboratory
of Atmospheric Processes and their Impacts, School of Architecture,
Civil and Environmental Engineering, École
Polytechnique Fédérale de Lausanne, Lausanne CH-1015, Switzerland
| | - Jacob Mastin
- Air
Quality Processes Research Section, Environment
and Climate Change Canada, Toronto M3H5T4, Canada
| | - Thomas Berkemeier
- Multiphase
Chemistry Department, Max Planck Institute
for Chemistry, Mainz 55128, Germany
| | - Valbona Celo
- Analysis
and Air Quality Section, Environment and
Climate Change Canada, Ottawa K1V1C7, Canada
| | - Ewa Dabek-Zlotorzynska
- Analysis
and Air Quality Section, Environment and
Climate Change Canada, Ottawa K1V1C7, Canada
| | - Tom Harner
- Air
Quality Processes Research Section, Environment
and Climate Change Canada, Toronto M3H5T4, Canada
| | - Gerhard Lammel
- Multiphase
Chemistry Department, Max Planck Institute
for Chemistry, Mainz 55128, Germany
| | - Athanasios Nenes
- Laboratory
of Atmospheric Processes and their Impacts, School of Architecture,
Civil and Environmental Engineering, École
Polytechnique Fédérale de Lausanne, Lausanne CH-1015, Switzerland
- Institute
of Chemical Engineering Sciences, Foundation for Research and Technology
Hellas, Patras GR-26504, Greece
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McMahon F, Ware RS, Grimwood K, Atack JM. Haemophilus influenzae and pneumococci: Co-colonization, interactions, cooperation and competition. Pediatr Pulmonol 2024. [PMID: 39392258 DOI: 10.1002/ppul.27318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/25/2024] [Accepted: 09/26/2024] [Indexed: 10/12/2024]
Abstract
Nontypeable Haemophilus influenzae (NTHi) and Streptococcus pneumoniae (pneumococcus) are pathobionts that share common environmental niches within the upper respiratory tract. They can form part of the resident upper airway microbiota, but under certain environmental circumstances become pathogenic and induce disease. In children, both organisms have a considerable impact on the healthcare system, commonly causing acute otitis media and pneumonia. They are also associated with chronic biofilm-mediated respiratory infections, such as persistent middle ear effusions and chronic suppurative otitis media, and in the lower airways with protracted bacterial bronchitis and bronchiectasis. Consequently, both organisms are responsible for large numbers of antibiotic prescriptions and substantial healthcare costs. The complex relationship between NTHi and pneumococcal co-interaction during colonization, infection and biofilm formation is poorly understood and a greater understanding is needed to facilitate development of future therapies, and novel interventions and prevention strategies. Co-infections with both bacteria can result in more severe disease, with disease severity likely mediated by their ability to cooperate in some in vivo niches. However, this relationship is not always straightforward, as under certain conditions, these two bacteria compete rather than cooperate. Current opinion supports developing a vaccine targeting NTHi strains, as well as a combined vaccine targeting both NTHi and pneumococci to decrease the respiratory disease burden in young children. This review summarizes our current knowledge of the interactions between NTHi and pneumococci and speculates on the future directions of research to understand how these bacteria co-exist and how to better prevent and treat NTHi and pneumococcal infection.
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Affiliation(s)
- Finn McMahon
- Institute for Biomedicine and Glycomics, Griffith University, Gold Coast, Queensland, Australia
| | - Robert S Ware
- Health Group, Griffith University, Gold Coast, Queensland, Australia
| | - Keith Grimwood
- School of Medicine and Dentistry, Griffith University, Gold Coast, Queensland, Australia
- NHMRC Centre for Research Excellence in Paediatric Bronchiectasis (AusBREATHE), Child Health Division, Menzies School of Health Research, Charles Darwin University, Darwin, Northern Territory, Australia
| | - John M Atack
- Institute for Biomedicine and Glycomics, Griffith University, Gold Coast, Queensland, Australia
- School of Environment and Science, Griffith University, Gold Coast, Queensland, Australia
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72
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Li N, Li J. Coronavirus-disease-2019-associated Stevens-Johnsons syndrome in a 15-year-old boy: a case report and review of the literature. J Med Case Rep 2024; 18:493. [PMID: 39390502 PMCID: PMC11468181 DOI: 10.1186/s13256-024-04842-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2024] [Accepted: 08/15/2024] [Indexed: 10/12/2024] Open
Abstract
BACKGROUND Stevens-Johnson syndrome (SJS) is a life-threatening condition characterized by high fever and severe mucocutaneous lesions, often triggered by drugs or infection. During the coronavirus disease 2019 pandemic, there was a marked increase in Stevens-Johnson syndrome cases, but relatively few cases were reported in children. The present article reports a pediatric case of Stevens-Johnson syndrome due to coronavirus disease 2019 infection and provides a review of the most relevant literature. CASE PRESENTATION A previously healthy 15-year-old Han Chinese boy from China presented to the hospital with oral ulcers, conjunctival hyperemia, and widespread maculopapular rash. He had a history of fever 9 days prior and tested positive for coronavirus disease 2019 infection. Upon admission, his rash and mucosal lesions worsened, with the development of blisters on the fingertips of both hands, ocular pain, photophobia, and erosive lesions on the genital mucosa with exudation. He was diagnosed with Stevens-Johnson syndrome and received treatment with methylprednisolone, intravenous immunoglobulin, and dermatological and mucosal care. The patient's condition was managed, and the dosage of high-dose intravenous methylprednisolone was tapered down, followed by a transition to oral prednisolone. He was discharged without sequelae. CONCLUSION We should be aware that coronavirus disease 2019 infection is associated with the development of Stevens-Johnson syndrome in children and may lead to a wide spectrum of dermatologic presentations. Although Stevens-Johnson syndrome is a relatively rare condition, given its potentially serious consequences, it is crucial to identify it as early as possible and to take appropriate preventive and therapeutic measures to reduce complications and improve the quality of life for patients.
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Affiliation(s)
- Na Li
- Infectious Diseases Department, Children's Hospital Affiliated to Shandong University (Jinan Children's Hospital), No. 23976 Jingshi Road, Jinan, 250022, China
| | - Jian Li
- Infectious Diseases Department, Children's Hospital Affiliated to Shandong University (Jinan Children's Hospital), No. 23976 Jingshi Road, Jinan, 250022, China.
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Blanco-Ferreiro A, Teijeiro A, Varela-Lema L, Rey-Brandariz J, Candal-Pedreira C, Martin-Gisbert L, García G, Galán I, Fernández E, Mourino N, Pérez-Ríos M. Assessment of exposure to secondhand tobacco smoke in Spain: A scoping review. Tob Induc Dis 2024; 22:TID-22-165. [PMID: 39398343 PMCID: PMC11468508 DOI: 10.18332/tid/192118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2024] [Revised: 08/06/2024] [Accepted: 08/09/2024] [Indexed: 10/15/2024] Open
Abstract
INTRODUCTION There is no consensus on the questions that should be included in questionnaires to properly ascertain exposure to secondhand tobacco smoke (SHS). The objective of this study is to analyze the questions included in studies which have assessed SHS exposure in Spain. METHODS A scoping review was performed, using PubMed, Embase and Web of Science databases, selecting original articles published in English and Spanish, across the period 2012-2021. We extracted data from each study regarding its design, target population, sample size or geographical scope; we also collected data regarding how studies dealt with exposure to SHS including assessment and intensity of SHS, exposure setting, geographical scope, and the verbatim questions used. RESULTS Finally, 75 studies were identified. In the 23 studies carried out in children, verbatim questions were included in 8 studies, and the setting most studied was the home. SHS exposure was assessed during pregnancy and postnatally by 8 studies, the verbatim questions used were described in 2 studies, being exposure ascertained at home and workplace. In the adult population, 14 of 44 studies described the verbatim questions; the setting most studied was the home. Verbatim questions varied among studies. CONCLUSIONS Questionnaire-based assessment of SHS exposure is highly heterogeneous, hindering comparability between studies. Therefore, it is necessary to set a standard questionnaire to assess exposure to SHS.
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Affiliation(s)
- Ana Blanco-Ferreiro
- Department of Preventive Medicine and Public Health, University of Santiago de Compostela, Santiago de Compostela, Spain
| | - Ana Teijeiro
- Department of Preventive Medicine and Public Health, University of Santiago de Compostela, Santiago de Compostela, Spain
| | - Leonor Varela-Lema
- Department of Preventive Medicine and Public Health, University of Santiago de Compostela, Santiago de Compostela, Spain
- Health Research Institute of Santiago de Compostela, Santiago de Compostela, Spain
- Centro de Investigación Biomédica en Red de Epidemiología y Salud Pública, Instituto de Salud Carlos III, Madrid, España
| | - Julia Rey-Brandariz
- Department of Preventive Medicine and Public Health, University of Santiago de Compostela, Santiago de Compostela, Spain
- Centro de Investigación Biomédica en Red de Epidemiología y Salud Pública, Instituto de Salud Carlos III, Madrid, España
| | - Cristina Candal-Pedreira
- Department of Preventive Medicine and Public Health, University of Santiago de Compostela, Santiago de Compostela, Spain
- Centro de Investigación Biomédica en Red de Epidemiología y Salud Pública, Instituto de Salud Carlos III, Madrid, España
| | - Lucía Martin-Gisbert
- Department of Preventive Medicine and Public Health, University of Santiago de Compostela, Santiago de Compostela, Spain
- Health Research Institute of Santiago de Compostela, Santiago de Compostela, Spain
| | - Guadalupe García
- Department of Preventive Medicine and Public Health, University of Santiago de Compostela, Santiago de Compostela, Spain
| | - Iñaki Galán
- National Centre for Epidemiology, Institute of Health Carlos III, Madrid, Spain
| | - Esteve Fernández
- Tobacco Control Unit, Catalan Institute of Oncology, WHO Collaborating Centre for Tobacco Control, L'Hospitalet de Llobregat, Barcelona, Spain
- Tobacco Control Research Group, Bellvitge Biomedical Research Institute, L'Hospitalet de Llobregat, Barcelona, Spain
- Faculty of Medicine and Health Sciences, University of Barcelona, Barcelona, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Respiratorias, Instituto de Salud Carlos III, Madrid, España
| | - Nerea Mourino
- Department of Preventive Medicine and Public Health, University of Santiago de Compostela, Santiago de Compostela, Spain
| | - Mónica Pérez-Ríos
- Department of Preventive Medicine and Public Health, University of Santiago de Compostela, Santiago de Compostela, Spain
- Health Research Institute of Santiago de Compostela, Santiago de Compostela, Spain
- Centro de Investigación Biomédica en Red de Epidemiología y Salud Pública, Instituto de Salud Carlos III, Madrid, España
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Uygun H, Oren AC, Sahinoglu EP, Akbayram S. Recurrent Visceral Leishmaniasis in a Case With Interleukin-12 Receptor Beta-1 Deficiency. Acta Parasitol 2024:10.1007/s11686-024-00926-8. [PMID: 39388053 DOI: 10.1007/s11686-024-00926-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2024] [Accepted: 09/11/2024] [Indexed: 10/12/2024]
Abstract
PURPOSE In this study, we present the case of a children who was followed up for recurrent visceral leishmaniasis and diagnosed with IL-12Rβ1 deficiency. METHODS A female patient who received Bacille Calmette-Guérin (BCG) vaccine 2 months after birth and developed visceral leishmaniasis at the age of 91 months was subsequently diagnosed with IL-12Rβ1 deficiency. The patient's diagnosis and treatment process were examined retrospectively. RESULTS IL-12Rβ1 deficiency is an autosomal recessive disease characterized by susceptibility to recurrent and/or severe infections caused by weakly pathogenic mycobacteria and salmonella. Infections with other intramacrophagic organisms may also occur, although rarely. Based on this information, it is believed that the mutation in the IFN-γ/IL-12 axis in our patient predisposed her to recurrent Leishmania infections. CONCLUSION This study adds to the limited literature on IL12RB1 deficiency as a cause of VL. Patients diagnosed with VL should be evaluated immunologically, as recurrent Leishmania infections may occur in those with IL-12Rβ1 defects.
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Affiliation(s)
- Hatice Uygun
- Department of Pediatric Infectious Disease, Gaziantep University School of Medicine, Gaziantep, Turkey.
| | - Ayse Ceyda Oren
- Department of Pediatric Hematology and Oncology, Gaziantep Liv Hospital, Gaziantep, Turkey
| | - Esra Pekpak Sahinoglu
- Department of Pediatric Hematology and Oncology, Gaziantep Liv Hospital, Gaziantep, Turkey
| | - Sinan Akbayram
- Department of Pediatric Hematology and Oncology, Gaziantep Liv Hospital, Gaziantep, Turkey
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Weng X, Liao G, Wang F, Li W, Kwan MP, Arrandale VH, Tse LA. Association of residential greenness with incident allergic rhinitis among adults: A prospective analysis of UK Biobank. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 946:174184. [PMID: 38909811 DOI: 10.1016/j.scitotenv.2024.174184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2024] [Revised: 06/11/2024] [Accepted: 06/20/2024] [Indexed: 06/25/2024]
Abstract
BACKGROUND Limited studies have assessed the impact of residential greenness exposure on allergic rhinitis in adults, and its relationship with ambient air pollutants remains unknown. OBJECTIVE To investigate the association of residential greenness with allergic rhinitis incidence and explore the mediation effects of ambient air pollutants in adults using data from a prospective cohort study in UK Biobank. METHODS Greenness was defined as the area-weighted mean of greenness coverage based on the land used data from the Generalized Land Use Database for England (GLUD) 2005 in the UK Biobank. Multiple Cox proportional hazard models and a generalized additive model incorporating restricted cubic splines were used to model the potential nonlinear effect of residential greenness on allergic rhinitis incidence and the potential mediation effect of ambient air pollutants. RESULTS Among the 281,699 subjects included in the analysis, 3260 allergic rhinitis incident cases occurred after a median follow-up of 14 years. With per 10% increase in residential greenness at a 300-m buffer, a 2.5% (95% CI: 1.0%, 4.0%) decreased risk of allergic rhinitis was observed. An L-shaped, non-linear dose-response relationship was indicated with a threshold of 54.9% greenness above which no excess allergic rhinitis risk was seen. PM10 partially mediated the relationship between greenness and allergic rhinitis incidence with a mediation effect of 26.9% (95% CI: 12.6%, 41.2%). A similar pattern of association was found at 1000-m buffer size. CONCLUSION This study demonstrates a significant beneficial effect of residential greenness on reducing allergic rhinitis incidence. Greenness may erase air pollutants and mitigate the rhinitis risk from air pollution.
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Affiliation(s)
- Xueqiong Weng
- JC School of Public Health and Primary Care, The Chinese University of Hong Kong, Hong Kong Special Administrative Region of China
| | - Gengze Liao
- JC School of Public Health and Primary Care, The Chinese University of Hong Kong, Hong Kong Special Administrative Region of China
| | - Feng Wang
- JC School of Public Health and Primary Care, The Chinese University of Hong Kong, Hong Kong Special Administrative Region of China
| | - Wenzhen Li
- JC School of Public Health and Primary Care, The Chinese University of Hong Kong, Hong Kong Special Administrative Region of China
| | - Mei-Po Kwan
- Department of Geography and Resource Management, The Chinese University of Hong Kong, Hong Kong Special Administrative Region of China; Institute of Space and Earth Information Science, The Chinese University of Hong Kong, Hong Kong Special Administrative Region of China; Institute of Future Cities, The Chinese University of Hong Kong, Hong Kong Special Administrative Region of China
| | | | - Lap Ah Tse
- JC School of Public Health and Primary Care, The Chinese University of Hong Kong, Hong Kong Special Administrative Region of China; Institute of Space and Earth Information Science, The Chinese University of Hong Kong, Hong Kong Special Administrative Region of China; CUHK Centre for Public Health and Primary Care (Shenzhen) & Shenzhen Municipal Key Laboratory for Health Risk Analysis, Shenzhen Research Institute of the Chinese University of Hong Kong, Shenzhen, China.
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76
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Ramchandani R, Lucyshyn R, Linton S, Ellis AK. Breaking the mold: nontraditional approaches to allergen immunotherapy for environmental allergens. Immunotherapy 2024:1-17. [PMID: 39382452 DOI: 10.1080/1750743x.2024.2408216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2024] [Accepted: 09/20/2024] [Indexed: 10/10/2024] Open
Abstract
Allergen immunotherapy is a disease-modifying treatment for allergic diseases. The predominant traditional immunotherapy is through subcutaneous administration of allergens to gradually desensitize allergic individuals. While effective, traditional allergen immunotherapy approaches are often lengthy, time consuming for patients and can result in local or systemic adverse reactions. Nontraditional immunotherapies are emerging as promising alternatives, offering potentially more convenient, safe and efficacious treatment options. This review sought to comprehensively examine the safety, efficacy and performance of various nontraditional immunotherapies for environmental allergens. Nontraditional immunotherapy approaches covered in this review include sublingual, local nasal, intralymphatic rush and ultra-rush immunotherapy, allergoid, microbial and anti-IgE immunotherapies. Nontraditional immunotherapies show significant promise in addressing the limitations of traditional subcutaneous immunotherapy. Methods like intralymphatic and rush immunotherapy offer shorter treatment regimens, enhancing patient adherence and convenience. The co-administration of probiotics or monoclonal antibodies, like omalizumab, with AIT appears to improve treatment efficacy and safety. Despite these advancements, further large-scale, long-term studies are needed to establish standardized protocols, dosing and validate long-term effects of these nontraditional immunotherapies. Standardizing outcome measurements across studies is crucial for accurate comparisons of nontraditional immunotherapies prior to widespread clinical adoption of these innovative techniques.
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Affiliation(s)
- Rashi Ramchandani
- Department of Medicine, University of Ottawa, Ottawa, ON, Canada
- Institute of Health Policy, Management & Evaluation, University of Toronto, Toronto, ON, Canada
| | - Rachel Lucyshyn
- Faculty of Health Sciences, Queen's University, Kingston, ON, Canada
- Allergy Research Unit, Kingston Health Sciences Center - KGH Site, Kingston, ON, Canada
| | - Sophia Linton
- Department of Medicine, Queen's University, Kingston, ON, Canada
- Department of Biomedical & Molecular Sciences, Queen's University, Kingston, Canada
| | - Anne K Ellis
- Allergy Research Unit, Kingston Health Sciences Center - KGH Site, Kingston, ON, Canada
- Department of Medicine, Queen's University, Kingston, ON, Canada
- Department of Biomedical & Molecular Sciences, Queen's University, Kingston, Canada
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77
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Brown E, Foster K, Gover I, Powell A, Hardie WD. Comparison of Exercise Protocols for Diagnosing Pediatric Unexplained Dyspnea on Exertion. Pediatr Exerc Sci 2024:1-6. [PMID: 39384168 DOI: 10.1123/pes.2024-0047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/19/2024] [Revised: 06/12/2024] [Accepted: 07/07/2024] [Indexed: 10/11/2024]
Abstract
PURPOSE Clinicians evaluating pediatric patients with unexplained dyspnea on exertion (DOE) often obtain exercise testing with a treadmill-based exercise-induced bronchospasm (EIB) protocol measuring only changes in spirometry. We modified the EIB protocol to collect metabolic and lung volume endpoints as obtained in a cardiopulmonary exercise test (CPET). We tested the hypothesis that measuring metabolic data with the EIB protocol (EIB-CPET) would yield greater diagnostic information than the EIB protocol. METHODS Exercise test diagnosis for healthy children with DOE referred to the pulmonary exercise lab from January 2011 through July 2023 were retrospectively compared between those performing either the EIB or EIB-CPET protocols. RESULTS One hundred and twenty-seven patients with unexplained DOE were analyzed. Of the 72 patients tested on the EIB protocol, 49% had stridor and 5% with EIB. Of the 55 patients tested on the EIB-CPET protocol, 42% had stridor, 42% with normal physiologic limitation, 22% with dysfunctional breathing, 5% with deconditioning, 2% with EIB, and 2% with exercise-induced hypoxemia. Patients performing the EIB-CPET protocol had a significantly higher rate of any diagnosis compared with EIB (P = .0002). CONCLUSIONS There is a greater diagnostic yield in children with unexplained DOE performing the EIB-CPET protocol compared with patients performing the EIB protocol.
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Affiliation(s)
- Elliott Brown
- Department of Pulmonary Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, OH,USA
| | - Karla Foster
- Department of Pulmonary Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, OH,USA
| | - Iesha Gover
- Department of Pulmonary Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, OH,USA
| | - Adam Powell
- Heart Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, OH,USA
| | - William D Hardie
- Department of Pulmonary Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, OH,USA
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78
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van Duuren IC, van Hengel ORJ, Penders J, Duijts L, Smits HH, Tramper-Stranders GA. The developing immune system in preterm born infants: From contributor to potential solution for respiratory tract infections and wheezing. Allergy 2024. [PMID: 39382056 DOI: 10.1111/all.16342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2024] [Revised: 09/05/2024] [Accepted: 09/17/2024] [Indexed: 10/10/2024]
Abstract
Moderate-late preterm-born infants experience more frequent and severe respiratory tract infections and wheezing compared to term-born infants. Decreasing the risk on respiratory tract infections and wheezing in this group is vital to improve quality of life and reduce medical consumption during infancy, but also to reduce the risk on asthma and COPD later in life. Until now, moderate-late preterm infants are underrepresented in research and mechanisms underlying their morbidity are largely unknown, although they represent 80% of all preterm-born infants. In order to protect these infants effectively, it is essential to understand the role of the immune system in early life respiratory health and to identify strategies to optimize immune development and respiratory health. This review elaborates on risk factors and preventative measures concerning respiratory tract infections and wheezing in preterm-born infants, exploring their impact on the immune system and microbiome. Factors discussed are early life antibiotic use, birth mode, feeding type and living environment. Further, differences in adaptive and innate immune maturation between term and preterm infants are discussed, as well as differences in local immune reactions in the lungs. Finally, preventative strategies are being explored, including microbiota transplantation, immune modulation (through pre-, pro-, syn- and postbiotics, bacterial lysates, vaccinations, and monoclonal antibodies) and antibiotic prophylaxis.
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Affiliation(s)
- Inger C van Duuren
- Department of Paediatrics, Franciscus Gasthuis & Vlietland, Rotterdam, The Netherlands
- Department of Pediatrics, Division of Respiratory Medicine and Allergology, Sophia Children's Hospital - Erasmus MC, Rotterdam, The Netherlands
| | - Oscar R J van Hengel
- Leiden University Center of Infectious Disease (LU-CID), Leiden, The Netherlands
| | - John Penders
- Department of Medical Microbiology, Infectious Diseases and Infection Prevention, Maastricht University Medical Center+, Maastricht, The Netherlands
| | - Liesbeth Duijts
- Department of Pediatrics, Division of Respiratory Medicine and Allergology, Sophia Children's Hospital - Erasmus MC, Rotterdam, The Netherlands
| | - Hermelijn H Smits
- Leiden University Center of Infectious Disease (LU-CID), Leiden, The Netherlands
| | - Gerdien A Tramper-Stranders
- Department of Paediatrics, Franciscus Gasthuis & Vlietland, Rotterdam, The Netherlands
- Department of Neonatal and Pediatric Intensive Care, Division of Neonatology, Sophia Children's Hospital, ErasmusMC, Rotterdam, The Netherlands
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79
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Zhang W, Zhang C, Zhang Y, Zhou X, Dong B, Tan H, Su H, Sun X. Multifaceted roles of mitochondria in asthma. Cell Biol Toxicol 2024; 40:85. [PMID: 39382744 PMCID: PMC11464602 DOI: 10.1007/s10565-024-09928-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2024] [Accepted: 10/02/2024] [Indexed: 10/10/2024]
Abstract
Mitochondria are essential organelles within cells, playing various roles in numerous cellular processes, including differentiation, growth, apoptosis, energy conversion, metabolism, and cellular immunity. The phenotypic variation of mitochondria is specific to different tissues and cell types, resulting in significant differences in their function, morphology, and molecular characteristics. Asthma is a chronic, complex, and heterogeneous airway disease influenced by external factors such as environmental pollutants and allergen exposure, as well as internal factors at the tissue, cellular, and genetic levels, including lung and airway structural cells, immune cells, granulocytes, and mast cells. Therefore, a comprehensive understanding of the specific responses of mitochondria to various external environmental stimuli and internal changes are crucial for elucidating the pathogenesis of asthma. Previous research on mitochondrial-targeted therapy for asthma has primarily focused on antioxidants. Consequently, it is necessary to summarize the multifaceted roles of mitochondria in the pathogenesis of asthma to discover additional strategies targeting mitochondria in this context. In this review, our goal is to describe the changes in mitochondrial function in response to various exposure factors across different cell types and other relevant factors in the context of asthma, utilizing a new mitochondrial terminology framework that encompasses cell-dependent mitochondrial characteristics, molecular features, mitochondrial activity, function, and behavior.
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Affiliation(s)
- Wei Zhang
- Department of Pediatrics, Xijing Hospital, The Fourth Military Medical University, Xi'an, China
| | - Chenyu Zhang
- Department of Pediatrics, Xijing Hospital, The Fourth Military Medical University, Xi'an, China
| | - Yi Zhang
- Department of Pediatrics, Xijing Hospital, The Fourth Military Medical University, Xi'an, China
| | - Xuehua Zhou
- Department of Pediatrics, Xijing Hospital, The Fourth Military Medical University, Xi'an, China
| | - Bo Dong
- Department of Pediatrics, Xijing Hospital, The Fourth Military Medical University, Xi'an, China
| | - Hong Tan
- Department of Pediatrics, Xijing Hospital, The Fourth Military Medical University, Xi'an, China
| | - Hui Su
- Department of Geriatrics, Xijing Hospital, The Fourth Military Medical University, Xi'an, China.
| | - Xin Sun
- Department of Pediatrics, Xijing Hospital, The Fourth Military Medical University, Xi'an, China.
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80
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Gu Q, Draheim M, Planchais C, He Z, Mu F, Gong S, Shen C, Zhu H, Zhivaki D, Shahin K, Collard JM, Su M, Zhang X, Mouquet H, Lo-Man R. Intestinal newborn regulatory B cell antibodies modulate microbiota communities. Cell Host Microbe 2024; 32:1787-1804.e9. [PMID: 39243760 DOI: 10.1016/j.chom.2024.08.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2024] [Revised: 07/08/2024] [Accepted: 08/12/2024] [Indexed: 09/09/2024]
Abstract
The role of immunoglobulins produced by IL-10-producing regulatory B cells remains unknown. We found that a particular newborn regulatory B cell population (nBreg) negatively regulates the production of immunoglobulin M (IgM) via IL-10 in an autocrine manner, limiting the intensity of the polyreactive antibody response following innate activation. Based on nBreg scRNA-seq signature, we identify these cells and their repertoire in fetal and neonatal intestinal tissues. By characterizing 205 monoclonal antibodies cloned from intestinal nBreg, we show that newborn germline-encoded antibodies display reactivity against bacteria representing six different phyla of the early microbiota. nBreg-derived antibodies can influence the diversity and the cooperation between members of early microbial communities, at least in part by modulating energy metabolism. These results collectively suggest that nBreg populations help facilitate early-life microbiome establishment and shed light on the paradoxical activities of regulatory B cells in early life.
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Affiliation(s)
- Qisheng Gu
- CAS Key Laboratory of Molecular Virology and Immunology, The Center for Microbes, Development and Health, Unit of Immunity and Pediatric Infectious Diseases, Shanghai Institute of Immunity and Infection, Chinese Academy of Sciences, Shanghai, China; Université Paris Cite, Paris, France
| | - Marion Draheim
- CAS Key Laboratory of Molecular Virology and Immunology, The Center for Microbes, Development and Health, Unit of Immunity and Pediatric Infectious Diseases, Shanghai Institute of Immunity and Infection, Chinese Academy of Sciences, Shanghai, China; University of Chinese Academy of Sciences, Beijing, China
| | - Cyril Planchais
- Humoral Immunology Unit, Institut Pasteur, Université Paris Cite, INSERM U1222, Paris, France
| | - Zihan He
- CAS Key Laboratory of Molecular Virology and Immunology, The Center for Microbes, Development and Health, Unit of Immunity and Pediatric Infectious Diseases, Shanghai Institute of Immunity and Infection, Chinese Academy of Sciences, Shanghai, China; University of Chinese Academy of Sciences, Beijing, China
| | - Fan Mu
- CAS Key Laboratory of Molecular Virology and Immunology, The Center for Microbes, Development and Health, Unit of Immunity and Pediatric Infectious Diseases, Shanghai Institute of Immunity and Infection, Chinese Academy of Sciences, Shanghai, China; University of Chinese Academy of Sciences, Beijing, China
| | - Shijie Gong
- CAS Key Laboratory of Molecular Virology and Immunology, The Center for Microbes, Development and Health, Unit of Immunity and Pediatric Infectious Diseases, Shanghai Institute of Immunity and Infection, Chinese Academy of Sciences, Shanghai, China; University of Chinese Academy of Sciences, Beijing, China
| | - Chun Shen
- Children's Hospital of Fudan University, Shanghai, China
| | - Haitao Zhu
- Children's Hospital of Fudan University (Xiamen Branch), Xiamen Children's Hospital, Xiamen, China
| | - Dania Zhivaki
- Division of Gastroenterology, Boston Children's Hospital and Harvard Medical School, Boston, MA, USA
| | - Khashayar Shahin
- State Key Laboratory of Genetic Engineering, School of Life Sciences, Fudan Microbiome Center, and Human Phenome Institute, Fudan University, Shanghai, China
| | - Jean-Marc Collard
- Enteric Bacterial Pathogens Unit & French National Reference Center for Escherichia Coli, Shigella and Salmonella, Institut Pasteur, Paris, France
| | - Min Su
- Obstetrics department, Affiliated Hospital of Nantong University, Nantong, China
| | - Xiaoming Zhang
- CAS Key Laboratory of Molecular Virology and Immunology, The Center for Microbes, Development and Health, Unit of Innate Defense and Immune Modulation, Shanghai Institute of Immunity and Infection, Chinese Academy of Sciences, Shanghai, China
| | - Hugo Mouquet
- Humoral Immunology Unit, Institut Pasteur, Université Paris Cite, INSERM U1222, Paris, France.
| | - Richard Lo-Man
- CAS Key Laboratory of Molecular Virology and Immunology, The Center for Microbes, Development and Health, Unit of Immunity and Pediatric Infectious Diseases, Shanghai Institute of Immunity and Infection, Chinese Academy of Sciences, Shanghai, China; Université Paris Cite, Paris, France.
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81
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Sim M, Sharma V, Li K, Gowland MH, Garcez T, Shilladay C, Pumphrey R, Patel N, Turner PJ, Boyle RJ. Adrenaline Auto-Injectors for Preventing Fatal Anaphylaxis. Clin Exp Allergy 2024. [PMID: 39383344 DOI: 10.1111/cea.14565] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2024] [Revised: 08/01/2024] [Accepted: 08/28/2024] [Indexed: 10/11/2024]
Abstract
Anaphylaxis affects up to 5% of people during their lifetime. Although anaphylaxis usually resolves without long-term physical consequences, it can result in anxiety and quality of life impairment. Rarely and unpredictably, community anaphylaxis can cause rapid physiological decompensation and death. Adrenaline (epinephrine) is the cornerstone of anaphylaxis treatment, and provision of adrenaline autoinjectors (AAI) has become a standard of care for people at risk of anaphylaxis in the community. In this article, we explore the effectiveness of AAIs for preventing fatal outcomes in anaphylaxis, using information drawn from animal and human in vivo studies and epidemiology. We find that data support the effectiveness of intravenous adrenaline infusions for reversing physiological features of anaphylaxis, typically at doses from 0.05 to 0.5 μg/kg/min for 1-2 h, or ~ 10 μg/kg total dose. Intramuscular injection of doses approximating 10 μg/kg in humans can result in similar peak plasma adrenaline levels to intravenous infusions, at 100-500 pg/mL. However, these levels are typically short-lived following intramuscular adrenaline, and pharmacokinetic and pharmacodynamic outcomes can be unpredictable. Epidemiological data do not support an association between increasing AAI prescriptions and reduced fatal anaphylaxis, although carriage and activation rates remain low. Taken together, these data suggest that current AAIs have little impact on rates of fatal anaphylaxis, perhaps due to a lack of sustained and sufficient plasma adrenaline concentration. Effects of AAI prescription on quality of life may be variable. There is a need to consider alternatives, which can safely deliver a sustained adrenaline infusion via an appropriate route.
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Affiliation(s)
- Marcus Sim
- National Heart and Lung Institute, Imperial College London, London, UK
| | - Vibha Sharma
- Royal Manchester Children's Hospital, Manchester, UK
- Lydia Becker Institute of Inflammation and Immunology, University of Manchester, Manchester, UK
| | - Karen Li
- National Heart and Lung Institute, Imperial College London, London, UK
| | | | - Tomaz Garcez
- Research and Innovation, Manchester University NHS Foundation Trust, Manchester, UK
| | - Cassandra Shilladay
- Research and Innovation, Manchester University NHS Foundation Trust, Manchester, UK
| | - Richard Pumphrey
- Department of Immunology, Manchester University NHS Foundation Trust, Manchester, UK
| | - Nandinee Patel
- National Heart and Lung Institute, Imperial College London, London, UK
| | - Paul J Turner
- National Heart and Lung Institute, Imperial College London, London, UK
| | - Robert J Boyle
- National Heart and Lung Institute, Imperial College London, London, UK
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Mou YK, Song XY, Wang HR, Wang Y, Liu WC, Yang T, Zhang MJ, Hu Y, Ren C, Song XC. Understanding the nose-brain axis and its role in related diseases: A conceptual review. Neurobiol Dis 2024; 202:106690. [PMID: 39389156 DOI: 10.1016/j.nbd.2024.106690] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2024] [Revised: 09/30/2024] [Accepted: 09/30/2024] [Indexed: 10/12/2024] Open
Abstract
The nose-brain axis (NBA), a critical component of the body-brain axis, not only serves as a drug transport route for the treatment of brain diseases but also mediates changes such as neuroimmune disorders, which may be an important mechanism in the occurrence and development of some nasal or brain diseases. Despite its importance, there are substantial gaps that remain in our understanding of the characteristics of NBA-mediated diseases and of the cellular and molecular mechanisms underlying the bidirectional NBA crosstalk. These gaps have limited the translational application of NBA-related research findings to some extent. Therefore, this review aims to address the conceptual framework of NBA and highlight its values in representative diseases by combining existing literature with new research results from our group. We hope that this paper will provide a basis for further in-depth research in this field, and facilitate the clinical translation of NBA.
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Affiliation(s)
- Ya-Kui Mou
- Department of Otorhinolaryngology, Head and Neck Surgery, Yantai Yuhuangding Hospital, Qingdao University, Yantai, China; Shandong Provincial Key Laboratory of Neuroimmune Interaction and Regulation, Yantai Yuhuangding Hospital, Yantai, China; Shandong Provincial Clinical Research Center for Otorhinolaryngologic Diseases, Yantai Yuhuangding Hospital, Yantai, China; Yantai Key Laboratory of Otorhinolaryngologic Diseases, Yantai Yuhuangding Hospital, Yantai, China
| | - Xiao-Yu Song
- Department of Otorhinolaryngology, Head and Neck Surgery, Yantai Yuhuangding Hospital, Qingdao University, Yantai, China; Shandong Provincial Key Laboratory of Neuroimmune Interaction and Regulation, Yantai Yuhuangding Hospital, Yantai, China; Shandong Provincial Clinical Research Center for Otorhinolaryngologic Diseases, Yantai Yuhuangding Hospital, Yantai, China; Yantai Key Laboratory of Otorhinolaryngologic Diseases, Yantai Yuhuangding Hospital, Yantai, China
| | - Han-Rui Wang
- Department of Otorhinolaryngology, Head and Neck Surgery, Yantai Yuhuangding Hospital, Qingdao University, Yantai, China; Shandong Provincial Key Laboratory of Neuroimmune Interaction and Regulation, Yantai Yuhuangding Hospital, Yantai, China; Shandong Provincial Clinical Research Center for Otorhinolaryngologic Diseases, Yantai Yuhuangding Hospital, Yantai, China; Yantai Key Laboratory of Otorhinolaryngologic Diseases, Yantai Yuhuangding Hospital, Yantai, China
| | - Yao Wang
- Department of Otorhinolaryngology, Head and Neck Surgery, Yantai Yuhuangding Hospital, Qingdao University, Yantai, China; Shandong Provincial Key Laboratory of Neuroimmune Interaction and Regulation, Yantai Yuhuangding Hospital, Yantai, China; Shandong Provincial Clinical Research Center for Otorhinolaryngologic Diseases, Yantai Yuhuangding Hospital, Yantai, China; Yantai Key Laboratory of Otorhinolaryngologic Diseases, Yantai Yuhuangding Hospital, Yantai, China
| | - Wan-Chen Liu
- Department of Otorhinolaryngology, Head and Neck Surgery, Yantai Yuhuangding Hospital, Qingdao University, Yantai, China; Shandong Provincial Key Laboratory of Neuroimmune Interaction and Regulation, Yantai Yuhuangding Hospital, Yantai, China; Shandong Provincial Clinical Research Center for Otorhinolaryngologic Diseases, Yantai Yuhuangding Hospital, Yantai, China; Yantai Key Laboratory of Otorhinolaryngologic Diseases, Yantai Yuhuangding Hospital, Yantai, China
| | - Ting Yang
- Department of Otorhinolaryngology, Head and Neck Surgery, Yantai Yuhuangding Hospital, Qingdao University, Yantai, China; Shandong Provincial Key Laboratory of Neuroimmune Interaction and Regulation, Yantai Yuhuangding Hospital, Yantai, China; Shandong Provincial Clinical Research Center for Otorhinolaryngologic Diseases, Yantai Yuhuangding Hospital, Yantai, China; Yantai Key Laboratory of Otorhinolaryngologic Diseases, Yantai Yuhuangding Hospital, Yantai, China
| | - Ming-Jun Zhang
- Department of Otorhinolaryngology, Head and Neck Surgery, Yantai Yuhuangding Hospital, Qingdao University, Yantai, China; Shandong Provincial Key Laboratory of Neuroimmune Interaction and Regulation, Yantai Yuhuangding Hospital, Yantai, China; Shandong Provincial Clinical Research Center for Otorhinolaryngologic Diseases, Yantai Yuhuangding Hospital, Yantai, China; Yantai Key Laboratory of Otorhinolaryngologic Diseases, Yantai Yuhuangding Hospital, Yantai, China
| | - Yue Hu
- Department of Otorhinolaryngology, Head and Neck Surgery, Yantai Yuhuangding Hospital, Qingdao University, Yantai, China; Shandong Provincial Key Laboratory of Neuroimmune Interaction and Regulation, Yantai Yuhuangding Hospital, Yantai, China; Shandong Provincial Clinical Research Center for Otorhinolaryngologic Diseases, Yantai Yuhuangding Hospital, Yantai, China; Yantai Key Laboratory of Otorhinolaryngologic Diseases, Yantai Yuhuangding Hospital, Yantai, China
| | - Chao Ren
- Department of Otorhinolaryngology, Head and Neck Surgery, Yantai Yuhuangding Hospital, Qingdao University, Yantai, China; Shandong Provincial Key Laboratory of Neuroimmune Interaction and Regulation, Yantai Yuhuangding Hospital, Yantai, China; Shandong Provincial Clinical Research Center for Otorhinolaryngologic Diseases, Yantai Yuhuangding Hospital, Yantai, China; Yantai Key Laboratory of Otorhinolaryngologic Diseases, Yantai Yuhuangding Hospital, Yantai, China; Department of Neurology, Yantai Yuhuangding Hospital, Qingdao University, Yantai, China.
| | - Xi-Cheng Song
- Department of Otorhinolaryngology, Head and Neck Surgery, Yantai Yuhuangding Hospital, Qingdao University, Yantai, China; Shandong Provincial Key Laboratory of Neuroimmune Interaction and Regulation, Yantai Yuhuangding Hospital, Yantai, China; Shandong Provincial Clinical Research Center for Otorhinolaryngologic Diseases, Yantai Yuhuangding Hospital, Yantai, China; Yantai Key Laboratory of Otorhinolaryngologic Diseases, Yantai Yuhuangding Hospital, Yantai, China.
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Dai L, Zhang L, He J, Huang R, Tang W, Guo H, Shang X. Diagnostic value of syndecan-1 for coronary artery lesions and correlation analysis of laboratory indicators in Kawasaki disease patients. Ital J Pediatr 2024; 50:209. [PMID: 39385218 PMCID: PMC11463127 DOI: 10.1186/s13052-024-01772-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/10/2024] [Accepted: 09/22/2024] [Indexed: 10/12/2024] Open
Abstract
BACKGROUND To explore the application value of syndecan-1 (SDC-1) in the diagnosis of coronary artery lesions (CALs) in Kawasaki disease (KD) patients and the correlation of multiple laboratory indicators in KD patients. METHODS 86 pediatric Kawasaki disease (KD) patients and 52 healthy controls admitted from January 2018 to December 2023 were retrospectively analyzed. Venous blood samples from KD patients were analyzed for white blood cells (WBC), platelets (PLT), C-reactive protein (CRP), interleukin-6 (IL-6), syndecan-1 (SDC-1), coagulation parameters, and lipid profiles. Correlations between these laboratory indicators were assessed. Receiver operating characteristic (ROC) curve analysis determined the diagnostic value of SDC-1 for coronary artery lesions (CALs) in KD patients. SDC-1 levels were further compared across different CAL severity groups. RESULTS The levels of ALT, AST, WBC, PLT, CRP, IL-6, and SDC-1 in the KD group were significantly higher than those in the control group (P < 0.05). Coagulation function analysis showed that APTT, TT and FIB levels were significantly increased in the KD group compared with the control group (P < 0.05). Lipid profile analysis revealed that TC, HDL-C, and ApoA1 were significantly decreased, whereas TG, LDL-C, and ApoB100 were significantly increased in the KD group (P < 0.05). Refractory KD patients exhibited significantly higher levels of ALT, AST, SDC-1, CRP, WBC, and TG compared to responsive KD patients (P < 0.05). Correlation analysis indicated a strong positive correlation between PLT and LDL-C (r = 0.227, P = 0.035) and between IL-6 and TG (r = 0.491, P = 0.000), while CRP was negatively correlated with ApoA1 (r = -0.265, P = 0.014). Among the 86 KD patients, 41 (47.67%) developed CALs, with 19 classified as mild, 15 as moderate, and 7 as severe. For predicting CALs among KD patients, the threshold of SDC-1 was identified as 5.5 ng/ml, with a sensitivity of 70.7%, specificity of 64.4%, positive predictive value of 65.91%, negative predictive value of 69.05%, and an AUC of 0.762 (95% confidence interval 0.662-0.861, P < 0.001). SDC-1 levels significantly differed among the CAL severity groups (P = 0.008), with higher levels observed in moderate compared to mild CALs, and in severe compared to moderate CALs. CONCLUSION In conclusion, SDC-1 has strong clinical value in the diagnosis of CALs in KD patients, and there is a close relationship between the levels of inflammatory factors, coagulation function and lipid levels in KD patients.
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Affiliation(s)
- Ling Dai
- ICU Department, Wuhan No.1 Hospital, Wuhan, Hubei, China
| | - Lingbo Zhang
- Cardiothoracic Surgery Department, The People's Hospital of Lincang, No. 116 Nantang Road, Linxiang District, Lincang, Yunnan, China
| | - Jie He
- Department of Oncology, Zhangqiu People's Hospital, Jinan, Shandong, China
| | - Rui Huang
- Department of Cardiology, Chen Zhou 3rd People's Hospital, Chenzhou, Hunan, China
| | - Wenwen Tang
- Department of Cardiology, Wuhan No. 9 Hospital, Wuhan, Hubei, China
| | - Huan Guo
- Cardiothoracic Surgery Department, The People's Hospital of Lincang, No. 116 Nantang Road, Linxiang District, Lincang, Yunnan, China.
| | - Xiaoke Shang
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, No. 1277 Jiefang Avenue, Jianghan District, Wuhan, Hubei Province, China.
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Wang L, Zhu Y, Zhang N, Xian Y, Tang Y, Ye J, Reza F, He G, Wen X, Jiang X. The multiple roles of interferon regulatory factor family in health and disease. Signal Transduct Target Ther 2024; 9:282. [PMID: 39384770 DOI: 10.1038/s41392-024-01980-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2024] [Revised: 08/12/2024] [Accepted: 09/10/2024] [Indexed: 10/11/2024] Open
Abstract
Interferon Regulatory Factors (IRFs), a family of transcription factors, profoundly influence the immune system, impacting both physiological and pathological processes. This review explores the diverse functions of nine mammalian IRF members, each featuring conserved domains essential for interactions with other transcription factors and cofactors. These interactions allow IRFs to modulate a broad spectrum of physiological processes, encompassing host defense, immune response, and cell development. Conversely, their pivotal role in immune regulation implicates them in the pathophysiology of various diseases, such as infectious diseases, autoimmune disorders, metabolic diseases, and cancers. In this context, IRFs display a dichotomous nature, functioning as both tumor suppressors and promoters, contingent upon the specific disease milieu. Post-translational modifications of IRFs, including phosphorylation and ubiquitination, play a crucial role in modulating their function, stability, and activation. As prospective biomarkers and therapeutic targets, IRFs present promising opportunities for disease intervention. Further research is needed to elucidate the precise mechanisms governing IRF regulation, potentially pioneering innovative therapeutic strategies, particularly in cancer treatment, where the equilibrium of IRF activities is of paramount importance.
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Affiliation(s)
- Lian Wang
- Department of Dermatology & Venerology, West China Hospital, Sichuan University, Chengdu, 610041, China
- Laboratory of Dermatology, Clinical Institute of Inflammation and Immunology, Frontiers Science Center for Disease-related Molecular Network, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Yanghui Zhu
- Department of Dermatology & Venerology, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Nan Zhang
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Yali Xian
- Department of Dermatology & Venerology, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Yu Tang
- Department of Dermatology & Venerology, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Jing Ye
- Department of Dermatology & Venerology, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Fekrazad Reza
- Radiation Sciences Research Center, Laser Research Center in Medical Sciences, AJA University of Medical Sciences, Tehran, Iran
- International Network for Photo Medicine and Photo Dynamic Therapy (INPMPDT), Universal Scientific Education and Research Network (USERN), Tehran, Iran
| | - Gu He
- Department of Dermatology & Venerology, West China Hospital, Sichuan University, Chengdu, 610041, China
- Laboratory of Dermatology, Clinical Institute of Inflammation and Immunology, Frontiers Science Center for Disease-related Molecular Network, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Xiang Wen
- Department of Dermatology & Venerology, West China Hospital, Sichuan University, Chengdu, 610041, China.
| | - Xian Jiang
- Department of Dermatology & Venerology, West China Hospital, Sichuan University, Chengdu, 610041, China.
- Laboratory of Dermatology, Clinical Institute of Inflammation and Immunology, Frontiers Science Center for Disease-related Molecular Network, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China.
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85
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Yang TN, Wang YX, Jian PA, Ma XY, Ren YF, Huang NN, Li XN, Li JL. Rab8a Is a Key Target That Melatonin Prevents Lipid Disorder from Atrazine. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024. [PMID: 39382334 DOI: 10.1021/acs.jafc.4c07006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/10/2024]
Abstract
Atrazine (ATZ), a widely used herbicide, disrupts mitochondrial function and lipid metabolism in the liver. Melatonin (MLT), a naturally synthesized hormone, combats mitochondrial dysfunction and alleviates lipid toxicity. However, the mechanisms behind ATZ-induced lipid metabolism toxicity and the protective effects of MLT remain unexplored. Mice were randomly assigned to four groups: control (Con), 5 mg/kg MLT, 170 mg/kg ATZ, and a cotreatment group receiving 170 mg/kg ATZ with 5 mg/kg MLT (ATZ+MLT). Additionally, we analyzed the effects of MLT and Rab8a on mRNA and proteins related to mitochondrial function and lipid metabolism disrupted by ATZ in AML12 cells. In conclusion, ATZ induced mitochondrial stress and disrupted fatty acid metabolism in mouse hepatocytes and AML12 cells. Exogenous MLT restores Rab8a levels, regulating fatty acid utilization in mitochondria and mitochondrial function. Notably, targeting Rab8a does not significantly affect mitochondrial function but prevents ATZ-induced lipid metabolism disorders in hepatocytes.
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Affiliation(s)
- Tian-Ning Yang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, P.R. China
| | - Yu-Xiang Wang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, P.R. China
| | - Ping-An Jian
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, P.R. China
| | - Xiang-Yu Ma
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, P.R. China
| | - Yi-Fei Ren
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, P.R. China
| | - Ning-Ning Huang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, P.R. China
| | - Xue-Nan Li
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, P.R. China
- Key Laboratory of the Provincial Education Department of Heilongjiang for Common Animal Disease Prevention and Treatment, Northeast Agricultural University, Harbin 150030, P.R. China
- Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, Northeast Agricultural University, Harbin 150030, P.R. China
| | - Jin-Long Li
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, P.R. China
- Key Laboratory of the Provincial Education Department of Heilongjiang for Common Animal Disease Prevention and Treatment, Northeast Agricultural University, Harbin 150030, P.R. China
- Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, Northeast Agricultural University, Harbin 150030, P.R. China
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86
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Bui HTD, You G, Lee M, Mao W, So C, Byeon C, Hong S, Mok H, Yoo HS. Milk exosome-infused fibrous matrix for treatment of acute wound. J Control Release 2024; 376:79-93. [PMID: 39366455 DOI: 10.1016/j.jconrel.2024.09.053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2024] [Revised: 09/24/2024] [Accepted: 09/30/2024] [Indexed: 10/06/2024]
Abstract
To provide an advanced therapy for wound recovery, in this study, pasteurized bovine milk-derived exosomes (mEXO) are immobilized onto a polydopamine (PDA)-coated hyaluronic acid (HA)-based electrospun nanofibrous matrix (mEXO@PMAT) via a simple dip-coating method to formulate an mEXO-immobilized mesh as a wound-healing biomaterial. Purified mEXOs (∼82 nm) contain various anti-inflammatory, cell proliferation, and collagen synthesis-related microRNAs (miRNAs), including let-7b, miR-184, and miR-181a, which elicit elevated mRNA expression of keratin5, keratin14, and collagen1 in human keratinocytes (HaCaT) and fibroblasts (HDF). The mEXOs immobilized onto the PDA-coated meshes are gradually released from the meshes over 14 days without burst-out effect. After treatment with HaCaT and HDF, the degree of in vitro cell migration increases significantly in the mEXO@PMAT-treated HaCaT and HDF cells compared to the unmodified or PDA-coated meshes-treated cells. Additionally, the mEXO@PMAT provides significantly faster wound closure in vivo without notable toxicity. Thus, the sustained liberation of bioactive mEXO from the meshes can effectively enhance cell proliferation in vitro and accelerate wound closure in vivo, which could be harnessed mEXO@PMAT as a promising wound-healing biomaterial.
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Affiliation(s)
- Hoai-Thuong Duc Bui
- Department of Medical Biomaterials Engineering, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Gayeon You
- Department of Bioscience and Biotechnology, Konkuk University, Seoul 143-701, Republic of Korea
| | - Miso Lee
- Department of Medical Biomaterials Engineering, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Wei Mao
- Department of Medical Biomaterials Engineering, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Chaewon So
- Department of Bioscience and Biotechnology, Konkuk University, Seoul 143-701, Republic of Korea
| | - Chorok Byeon
- Department of Physics and Chemistry, DGIST, Daegu, 42988, Republic of Korea
| | - Seonki Hong
- Department of Physics and Chemistry, DGIST, Daegu, 42988, Republic of Korea
| | - Hyejung Mok
- Department of Bioscience and Biotechnology, Konkuk University, Seoul 143-701, Republic of Korea.
| | - Hyuk Sang Yoo
- Department of Medical Biomaterials Engineering, Kangwon National University, Chuncheon 24341, Republic of Korea; Institute for Molecular Science and Fusion Technology, Kangwon National University, Chuncheon 24341, Republic of Korea; Institute of Biomedical Science, Kangwon National University, Chuncheon 24341, Republic of Korea; Kangwon Radiation Convergence Research Center, Kangwon National University, Chuncheon 24341, Republic of Korea.
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87
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Medemblik JM, Conlon CA, Haszard JJ, Heath ALM, Taylor RW, von Hurst P, Beck KL, Te Morenga L, Daniels L. Parent-reported offering of allergen foods to infants during complementary feeding: An observational study of New Zealand infants. Appetite 2024; 203:107709. [PMID: 39389159 DOI: 10.1016/j.appet.2024.107709] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2024] [Revised: 09/10/2024] [Accepted: 10/08/2024] [Indexed: 10/12/2024]
Abstract
The prevalence of food allergies in New Zealand infants is uncertain but is believed to be similar to Australia, exceeding 10%. Current recommendations for reducing food allergy risk are to offer all major food allergens to infants from as early as six months of age (start of complementary feeding), and before 12 months of age. However, little is known regarding parental practices around introducing major food allergens. This study aimed to explore parental offering of major food allergens to infants during complementary feeding, and parent-reported food allergies. The cross-sectional study is a secondary analysis of the multi-centre (Auckland and Dunedin) First Foods New Zealand study of 625 parent-infant dyads. Participants were recruited in 2020-2022 when infants were 7-10 months of age. Questionnaires assessed sociodemographic characteristics, complementary feeding approach, infant pouch use and parental responses to five food allergy questions. All major food allergens had been offered to only 17% of infants by 9-10 months of age. Having offered egg, peanut, tree nuts, sesame, soy and seafood was more commonly associated with using a baby-led complementary feeding approach than a parent-led approach (p < 0.001). Frequent baby food pouch use was associated with a lower likelihood of offering egg and peanut (both p < 0.001). Overall, 12.6% of infants had a reported food allergy, with symptomatic response after exposure being the most common diagnostic tool. Most infants are not offered all major food allergens during early complementary feeding, with some parents actively avoiding major food allergens in the first year of life. These results provide up-to-date knowledge of parental practices, highlighting the need for more targeted advice and strategies to improve parental engagement with allergy prevention and diagnosis.
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Affiliation(s)
- Jade M Medemblik
- School of Sport Exercise and Nutrition, Massey University, Auckland, 0745, New Zealand.
| | - Cathryn A Conlon
- School of Sport Exercise and Nutrition, Massey University, Auckland, 0745, New Zealand.
| | | | - Anne-Louise M Heath
- Department of Human Nutrition, University of Otago, Dunedin, 9054, New Zealand.
| | - Rachael W Taylor
- Department of Medicine, University of Otago, Dunedin, 9054, New Zealand.
| | - Pamela von Hurst
- School of Sport Exercise and Nutrition, Massey University, Auckland, 0745, New Zealand.
| | - Kathryn L Beck
- School of Sport Exercise and Nutrition, Massey University, Auckland, 0745, New Zealand.
| | - Lisa Te Morenga
- Research Centre for Hauora and Health, Massey University, Wellington, 6140, New Zealand.
| | - Lisa Daniels
- Department of Human Nutrition, University of Otago, Dunedin, 9054, New Zealand.
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88
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Du Q, Zhang L, Ma C, Yang L, Tian J, Cao Z. Analysis of heritability and environmental factors in preschool children with eczema: a case-control study. Sci Rep 2024; 14:23529. [PMID: 39384872 PMCID: PMC11464840 DOI: 10.1038/s41598-024-75081-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Accepted: 10/01/2024] [Indexed: 10/11/2024] Open
Abstract
Eczema is common in children, and its onset is affected by both genetic and environmental factors. We investigated the effects of genetic and environmental factors on the incidence of eczema in preschool children. 515 preschool children with eczema and 515 children participating in the physical examination were enrolled. The study included the incidence of childhood eczema, the child's birth and feeding conditions, the history of eczema in the parents, and relevant environmental risk factors, and to comprehensively analyze the genetic and environmental factors influencing childhood eczema. Among 1030 children, 173 parents (8.4%) had eczema, with a heritability of 73.59% for boys' parents and 58.59% for girls' parents. Multivariate logistic regression results showed that premature infants, low birth weight, children who had used antibiotics before the age of 1 year the living environment between the first year of mother pregnancy and the first year of the child is humid, a father with a history of eczema, a mother with a history of eczema are risk factors for eczema in children. Actively preventing environmental factors related to eczema may be an effective means to reduce the risk of eczema in children.
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Affiliation(s)
- Qingfang Du
- Department of Dermatology, Shaanxi Provincial People's Hospital, No. 256 West Youyi Road, Beilin District, Xi 'an, 710068, China
| | - Lei Zhang
- Department of Dermatology, Shaanxi Provincial People's Hospital, No. 256 West Youyi Road, Beilin District, Xi 'an, 710068, China
| | - Chongzhi Ma
- The 63600 hospital of PLA, Dongfeng Chang District, Suzhou District, Jiuquan, 732750, China
| | - Li Yang
- Department of Dermatology, Shaanxi Provincial People's Hospital, No. 256 West Youyi Road, Beilin District, Xi 'an, 710068, China
| | - Jun Tian
- Department of Dermatology, Shaanxi Provincial People's Hospital, No. 256 West Youyi Road, Beilin District, Xi 'an, 710068, China.
| | - Zijian Cao
- The 63600 hospital of PLA, Dongfeng Chang District, Suzhou District, Jiuquan, 732750, China.
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89
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Hwang G, Kim K. Long-Run Impacts of an Early-life Nutrition Program: Evidence from the Introduction of the Special Supplemental Nutrition Program for Women, Infants, and Children (WIC). Matern Child Health J 2024:10.1007/s10995-024-04005-2. [PMID: 39377947 DOI: 10.1007/s10995-024-04005-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/18/2024] [Indexed: 10/09/2024]
Abstract
OBJECTIVES To study how access to the Special Supplemental Nutrition Program for Women, Infants, and Children (WIC) during the prenatal and early childhood periods affects long-term health outcomes of the affected cohorts. METHODS In order to identify the effects of the WIC program, we exploit variations in the timing of its introduction in different counties and analyze future health indicators of affected cohorts. We use the restricted version of the Panel Study of Income Dynamics, which includes county-level identifiers through the interview year 2019. RESULTS Our findings suggest that extending WIC access by one month correlates with a 0.2-0.3% point decrease in asthma incidence (p < 0.1 to p < 0.01) of affected cohorts. Although the connection between WIC and asthma is not fully understood, existing studies suggest potential pathways. Micronutrient deficiencies during early life can impact immune function and inflammation, both relevant to asthma. Moreover, adopting healthier dietary habits may improve microbiome composition, lowering asthma risk. Other indirect benefits of WIC, such as increased use of preventive healthcare services, may also contribute to the prevention of asthma. Despite uncertainties, these estimates remain robust across various model specifications. CONCLUSIONS FOR PRACTICE Our study implies that early-life nutritional support programs such as WIC may alleviate the burden of asthma, although the specific mechanisms and effect sizes remain unclear. Given the substantial impact of asthma in the U.S., our findings underscore the potential long-term benefits of early-life nutritional support programs for lifelong health.
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Affiliation(s)
- Grace Hwang
- Congressional Budget Office, Health Analysis Division, 441 D St SW, Washington, DC, 20024, USA.
| | - Kichan Kim
- World Bank, Agriculture and Food Practice Group, Eastern and South Africa, 1818 H St NW, Washington, DC, 20433, USA
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90
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Zhang W, Zhu C, Liao Y, Zhou M, Xu W, Zou Z. Caspase-8 in inflammatory diseases: a potential therapeutic target. Cell Mol Biol Lett 2024; 29:130. [PMID: 39379817 PMCID: PMC11463096 DOI: 10.1186/s11658-024-00646-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2024] [Accepted: 09/23/2024] [Indexed: 10/10/2024] Open
Abstract
Caspase-8, a renowned cysteine-aspartic protease within its enzyme family, initially garnered attention for its regulatory role in extrinsic apoptosis. With advancing research, a growing body of evidence has substantiated its involvement in other cell death processes, such as pyroptosis and necroptosis, as well as its modulatory effects on inflammasomes and proinflammatory cytokines. PANoptosis, an emerging concept of cell death, encompasses pyroptosis, apoptosis, and necroptosis, providing insight into the often overlapping cellular mortality observed during disease progression. The activation or deficiency of caspase-8 enzymatic activity is closely linked to PANoptosis, positioning caspase-8 as a key regulator of cell survival or death across various physiological and pathological processes. Aberrant expression of caspase-8 is closely associated with the development and progression of a range of inflammatory diseases, including immune system disorders, neurodegenerative diseases (NDDs), sepsis, and cancer. This paper delves into the regulatory role and impact of caspase-8 in these conditions, aiming to elucidate potential therapeutic strategies for the future intervention.
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Affiliation(s)
- Wangzheqi Zhang
- Faculty of Anesthesiology, Changhai Hospital, Naval Medical University, Shanghai, 200433, China
| | - Chenglong Zhu
- Faculty of Anesthesiology, Changhai Hospital, Naval Medical University, Shanghai, 200433, China
| | - Yan Liao
- Faculty of Anesthesiology, Changhai Hospital, Naval Medical University, Shanghai, 200433, China
| | - Miao Zhou
- Department of Anesthesiology, The Affiliated Cancer Hospital of Nanjing Medical University, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, Nanjing Medical University, Nanjing, 210009, Jiangsu, China.
| | - Wenyun Xu
- Department of Anesthesiology, Second Affiliated Hospital of Naval Medical University, Shanghai, 200003, China.
| | - Zui Zou
- Faculty of Anesthesiology, Changhai Hospital, Naval Medical University, Shanghai, 200433, China.
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91
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Pala F, Notarangelo LD, Bosticardo M. Rediscovering the human thymus through cutting-edge technologies. J Exp Med 2024; 221:e20230892. [PMID: 39167072 PMCID: PMC11338284 DOI: 10.1084/jem.20230892] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2024] [Revised: 06/24/2024] [Accepted: 07/30/2024] [Indexed: 08/23/2024] Open
Abstract
Recent technological advances have transformed our understanding of the human thymus. Innovations such as high-resolution imaging, single-cell omics, and organoid cultures, including thymic epithelial cell (TEC) differentiation and culture, and improvements in biomaterials, have further elucidated the thymus architecture, cellular dynamics, and molecular mechanisms underlying T cell development, and have unraveled previously unrecognized levels of stromal cell heterogeneity. These advancements offer unprecedented insights into thymic biology and hold promise for the development of novel therapeutic strategies for immune-related disorders.
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Affiliation(s)
- Francesca Pala
- Immune Deficiency Genetics Section, Laboratory of Clinical Immunology and Microbiology, National Institute of Allergy and Infectious Diseases, National Institutes of Health , Bethesda, MD, USA
| | - Luigi D Notarangelo
- Immune Deficiency Genetics Section, Laboratory of Clinical Immunology and Microbiology, National Institute of Allergy and Infectious Diseases, National Institutes of Health , Bethesda, MD, USA
| | - Marita Bosticardo
- Immune Deficiency Genetics Section, Laboratory of Clinical Immunology and Microbiology, National Institute of Allergy and Infectious Diseases, National Institutes of Health , Bethesda, MD, USA
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92
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Chong KW, Sultana R, Lee MP, Tan LL, Goh A, Goh SH, Loh W. Diagnostic Accuracy of Skin Prick Test, Food-Specific IgE and Component Testing for IgE-Mediated Peanut, Egg, Milk and Wheat Allergy. Clin Exp Allergy 2024. [PMID: 39376059 DOI: 10.1111/cea.14578] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2024] [Revised: 09/24/2024] [Accepted: 09/25/2024] [Indexed: 10/09/2024]
Affiliation(s)
- Kok Wee Chong
- Allergy Service, Department of Paediatrics, KK Women's and Children's Hospital, Singapore, Singapore
- Paediatrics Academic Clinical Programme, SingHealth Duke-NUS Academic Medical Centre, Singapore, Singapore
| | - R Sultana
- Centre for Quantitative Medicine, Duke-NUS Medical School, Singapore, Singapore
| | - May Ping Lee
- Allergy Service, Department of Paediatrics, KK Women's and Children's Hospital, Singapore, Singapore
- Paediatrics Academic Clinical Programme, SingHealth Duke-NUS Academic Medical Centre, Singapore, Singapore
| | - Lynette Liling Tan
- Allergy Service, Department of Paediatrics, KK Women's and Children's Hospital, Singapore, Singapore
- Paediatrics Academic Clinical Programme, SingHealth Duke-NUS Academic Medical Centre, Singapore, Singapore
| | - Anne Goh
- Allergy Service, Department of Paediatrics, KK Women's and Children's Hospital, Singapore, Singapore
- Paediatrics Academic Clinical Programme, SingHealth Duke-NUS Academic Medical Centre, Singapore, Singapore
| | - Si Hui Goh
- Allergy Service, Department of Paediatrics, KK Women's and Children's Hospital, Singapore, Singapore
- Paediatrics Academic Clinical Programme, SingHealth Duke-NUS Academic Medical Centre, Singapore, Singapore
| | - Wenyin Loh
- Allergy Service, Department of Paediatrics, KK Women's and Children's Hospital, Singapore, Singapore
- Paediatrics Academic Clinical Programme, SingHealth Duke-NUS Academic Medical Centre, Singapore, Singapore
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93
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Sun N, Ogulur I, Mitamura Y, Yazici D, Pat Y, Bu X, Li M, Zhu X, Babayev H, Ardicli S, Ardicli O, D'Avino P, Kiykim A, Sokolowska M, van de Veen W, Weidmann L, Akdis D, Ozdemir BG, Brüggen MC, Biedermann L, Straumann A, Kreienbühl A, Guttman-Yassky E, Santos AF, Del Giacco S, Traidl-Hoffmann C, Jackson DJ, Wang DY, Lauerma A, Breiteneder H, Zhang L, O'Mahony L, Pfaar O, O'Hehir R, Eiwegger T, Fokkens WJ, Cabanillas B, Ozdemir C, Walter K, Bayik M, Nadeau KC, Torres MJ, Akdis M, Jutel M, Agache I, Akdis CA. The epithelial barrier theory and its associated diseases. Allergy 2024. [PMID: 39370939 DOI: 10.1111/all.16318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2024] [Revised: 08/28/2024] [Accepted: 09/03/2024] [Indexed: 10/08/2024]
Abstract
The prevalence of many chronic noncommunicable diseases has been steadily rising over the past six decades. During this time, over 350,000 new chemical substances have been introduced to the lives of humans. In recent years, the epithelial barrier theory came to light explaining the growing prevalence and exacerbations of these diseases worldwide. It attributes their onset to a functionally impaired epithelial barrier triggered by the toxicity of the exposed substances, associated with microbial dysbiosis, immune system activation, and inflammation. Diseases encompassed by the epithelial barrier theory share common features such as an increased prevalence after the 1960s or 2000s that cannot (solely) be accounted for by the emergence of improved diagnostic methods. Other common traits include epithelial barrier defects, microbial dysbiosis with loss of commensals and colonization of opportunistic pathogens, and circulating inflammatory cells and cytokines. In addition, practically unrelated diseases that fulfill these criteria have started to emerge as multimorbidities during the last decades. Here, we provide a comprehensive overview of diseases encompassed by the epithelial barrier theory and discuss evidence and similarities for their epidemiology, genetic susceptibility, epithelial barrier dysfunction, microbial dysbiosis, and tissue inflammation.
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Affiliation(s)
- Na Sun
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland
- SKL of Marine Food Processing & Safety Control, National Engineering Research Center of Seafood, School of Food Science and Technology, Dalian Polytechnic University, Dalian, P. R. China
| | - Ismail Ogulur
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland
| | - Yasutaka Mitamura
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland
| | - Duygu Yazici
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland
| | - Yagiz Pat
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland
| | - Xiangting Bu
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland
| | - Manru Li
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland
| | - Xueyi Zhu
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland
| | - Huseyn Babayev
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland
| | - Sena Ardicli
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland
- Department of Genetics, Faculty of Veterinary Medicine, Bursa Uludag University, Bursa, Turkey
| | - Ozge Ardicli
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland
- Division of Food Processing, Milk and Dairy Products Technology Program, Karacabey Vocational School, Bursa Uludag University, Bursa, Turkey
| | - Paolo D'Avino
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland
| | - Ayca Kiykim
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland
- Department of Pediatrics, Division of Pediatric Allergy and Immunology, Cerrahpasa School of Medicine, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Milena Sokolowska
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland
| | - Willem van de Veen
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland
| | - Lukas Weidmann
- Department of Nephrology, University Hospital Zurich, Zurich, Switzerland
| | - Deniz Akdis
- Department of Cardiology, University Hospital Zurich, Zurich, Switzerland
| | | | - Marie Charlotte Brüggen
- Christine Kühne-Center for Allergy Research and Education (CK-CARE), Davos, Switzerland
- Faculty of Medicine, University of Zurich, Zurich, Switzerland
- Department of Dermatology, University Hospital Zurich, Zurich, Switzerland
| | - Luc Biedermann
- Department of Gastroenterology and Hepatology, University Hospital Zurich, Zurich, Switzerland
| | - Alex Straumann
- Department of Gastroenterology and Hepatology, University Hospital Zurich, Zurich, Switzerland
| | - Andrea Kreienbühl
- Department of Gastroenterology and Hepatology, University Hospital Zurich, Zurich, Switzerland
| | - Emma Guttman-Yassky
- Department of Dermatology, and Laboratory of Inflammatory Skin Diseases, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Alexandra F Santos
- Department of Women and Children's Health (Pediatric Allergy), School of Life Course Sciences, Faculty of Life Sciences and Medicine, King's College London, London, UK
- Children's Allergy Service, Evelina London Children's Hospital, Guy's and St. Thomas' Hospital, London, UK
- Peter Gorer Department of Immunobiology, School of Immunology and Microbial Sciences, King's College London, London, UK
| | - Stefano Del Giacco
- Department of Medical Sciences and Public Health, University of Cagliari, Cagliari, Italy
| | | | - David J Jackson
- Guy's Severe Asthma Centre, Guy's Hospital, Guy's & St Thomas' NHS Trust, London, UK
- School of Immunology & Microbial Sciences, King's College London, London, UK
| | - De-Yun Wang
- Department of Otolaryngology, Infectious Diseases Translational Research Programme, Yong Loo Lin School of Medicine, National University of Singapore, National University Health System, Singapore City, Singapore
| | - Antti Lauerma
- Department of Dermatology, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
| | - Heimo Breiteneder
- Department of Pathophysiology and Allergy Research, Medical University of Vienna, Vienna, Austria
| | - Luo Zhang
- Department of Otolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing, China
- Beijing Laboratory of Allergic Diseases and Beijing Key Laboratory of Nasal Diseases, Beijing Institute of Otolaryngology, Beijing, China
| | - Liam O'Mahony
- Department of Medicine and School of Microbiology, University College Cork, Cork, Ireland
- APC Microbiome Ireland, Cork, Ireland
| | - Oliver Pfaar
- Department of Otorhinolaryngology, Head and Neck Surgery, Section of Rhinology and Allergy, University Hospital Marburg, Philipps-Universität Marburg, Marburg, Germany
| | - Robyn O'Hehir
- Allergy, Asthma & Clinical Immunology, The Alfred Hospital, Melbourne, Victoria, Australia
- Department of Immunology, School of Translational Medicine, Monash University, Melbourne, Victoria, Australia
| | - Thomas Eiwegger
- Translational Medicine Program, Research Institute, Hospital for Sick Children, Toronto, Ontario, Canada
- Department of Immunology, Temerty Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
- Karl Landsteiner University of Health Sciences, Krems an der Donau, Austria
- Department of Pediatric and Adolescent Medicine, University Hospital St. Pölten, St. Pölten, Austria
| | - Wytske J Fokkens
- Department of Otorhinolaryngology & Head and Neck Surgery, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Beatriz Cabanillas
- Department of Allergy, Instituto de Investigación Biosanitaria Hospital 12 de Octubre (imas12), Madrid, Spain
| | - Cevdet Ozdemir
- Department of Pediatric Basic Sciences, Institute of Child Health, Istanbul University, Istanbul, Turkey
- Istanbul Faculty of Medicine, Department of Pediatrics, Division of Pediatric Allergy and Immunology, Istanbul University, Istanbul, Turkey
| | - Kistler Walter
- Department of Sports Medicine, Davos Hospital, Davos, Switzerland
- Swiss Research Institute for Sports Medicine (SRISM), Davos, Switzerland
- Medical Committee International Ice Hockey Federation (IIHF), Zurich, Switzerland
| | - Mahmut Bayik
- Department of Internal Medicine and Hematology, Marmara University, Istanbul, Turkey
| | - Kari C Nadeau
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA
| | - Maria J Torres
- Allergy Unit, IBIMA-Hospital Regional Universitario de Málaga-ARADyAL, UMA, Málaga, Spain
| | - Mübeccel Akdis
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland
| | - Marek Jutel
- Department of Clinical Immunology, Wrocław Medical University, Wroclaw, Poland
| | - Ioana Agache
- Faculty of Medicine, Department of Allergy and Clinical Immunology, Transylvania University, Brasov, Romania
| | - Cezmi A Akdis
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland
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Alves LDO, Paravidino VB, Gonçalves TR, Ferreira ALL, Gomes DV, Dutra-Malvar SGV, Cocate PG. Sedentary Behavior and Ultra-Processed Food Consumption Associated to BMI Changes in Brazilian Students During COVID-19. Am J Hum Biol 2024:e24165. [PMID: 39370655 DOI: 10.1002/ajhb.24165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2024] [Revised: 09/02/2024] [Accepted: 09/23/2024] [Indexed: 10/08/2024] Open
Abstract
INTRODUCTION University students experienced significant changes in their routines with the implementation of remote learning during Covid-19 pandemic, including increase in sedentary behavior (SB) time and ultra-processed foods (UPF's) consumption, which may have influenced changes in body mass index (BMI). OBJECTIVE To evaluate the association between the variation in SB time and UPF's consumption with the variation in BMI, before and during the pandemic, in university students. METHODS This is a cross-sectional study, conducted between November 2020 and February 2021, with students from a public university of Southeast of Brazil, who answered an online questionnaire with questions regarding to the period before and during the pandemic. SB was assessed through questions about time spent on TV and electronic devices. A score of the frequency of UPF's consumption was estimated based on the Brazilian Food Guide. Self-reported information on height and body mass was used to calculate BMI. RESULTS The sample comprised 3390 university students, with an average age of 28.7 (± 10.0) years. Among them, 65.4% were undergraduates, and 66.9% were women. SB time, UPF score, and BMI increased significantly during the pandemic, compared to the previous period. In this population, there was a significant association between increased SB time (β = 0.06; SE = 0.01; p < 0.001) and UPF score (β = 0.08; SE = 0.01; p < 0.001) with an increase in BMI. CONCLUSION Changes in SB time and UPF score were associated with an increase in BMI before and during the COVID-19 pandemic in students from a Brazilian University.
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Affiliation(s)
- Lucas de Oliveira Alves
- Department of Physical Activity Biosciences, School of Physical Education and Sports, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
- Department of Epidemiology, Institute of Social Medicine, State University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Vitor Barreto Paravidino
- Department of Epidemiology, Institute of Social Medicine, State University of Rio de Janeiro, Rio de Janeiro, Brazil
- Department of Physical Education and Sports, Naval Academy-Brazilian Navy, Rio de Janeiro, Brazil
| | - Tatiana Rehder Gonçalves
- Institute of Collective Health Studies, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Ana Lorena Lima Ferreira
- Department of Social and Applied Nutrition, National Institute Josué de Castro, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Diego Viana Gomes
- Department of Physical Activity Biosciences, School of Physical Education and Sports, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Sabrina Graziani Veloso Dutra-Malvar
- Department of Physical Activity Biosciences, School of Physical Education and Sports, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Paula Guedes Cocate
- Department of Physical Activity Biosciences, School of Physical Education and Sports, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
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Grases-Pintó B, Torres-Castro P, Abril-Gil M, Castell M, Rodríguez-Lagunas MJ, Pérez-Cano FJ, Franch À. TGF-β2, EGF and FGF21 influence the suckling rat intestinal maturation. J Nutr Biochem 2024:109778. [PMID: 39374742 DOI: 10.1016/j.jnutbio.2024.109778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2024] [Revised: 09/04/2024] [Accepted: 10/01/2024] [Indexed: 10/09/2024]
Abstract
Some of the growth factors present in breast milk, such as transforming growth factor-β (TGF-β), epidermal growth factor (EGF) and fibroblast growth factor 21 (FGF21), play important roles in the development of the intestinal tract. The aim of this study was to determine the effect of a supplementation with TGF-β2, EGF and FGF21 on suckling rats intestinal maturation. For this purpose, Wistar rats were supplemented daily with TGF-β2, EGF or FGF21 throughout the suckling period. We evaluated the functionality of the intestinal epithelial barrier through an in vivo dextran permeability assay, and by a histomorphometric and immunohistochemical study. In addition, the intestinal gene expression of tight junction-associated proteins, mucins, toll-like receptors, and maturation markers was analyzed. Moreover, the intraepithelial lymphocyte (IEL) phenotypical composition was established.. During the suckling period, the supplementation with TGF-β2, EGF and FGF21 showed important signs of intestinal maturation. These results suggest that these molecules, present in breast milk, play a modulatory role in the maturation of the intestinal barrier function and the IEL composition during the suckling period.
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Affiliation(s)
- Blanca Grases-Pintó
- Physiology Section, Department of Biochemistry and Physiology, Faculty of Pharmacy and Food Science, University of Barcelona, 08028 Barcelona, Spain; Nutrition and Food Safety Research Institute (INSA·UB), 08921 Santa Coloma de Gramenet, Spain.
| | - Paulina Torres-Castro
- Physiology Section, Department of Biochemistry and Physiology, Faculty of Pharmacy and Food Science, University of Barcelona, 08028 Barcelona, Spain; Nutrition and Food Safety Research Institute (INSA·UB), 08921 Santa Coloma de Gramenet, Spain.
| | - Mar Abril-Gil
- Institute of Clinical Chemistry and Pathobiochemistry, Klinikum rechts der Isar, School of Medicine, Technical University of Munich, 81675 Munich, Germany.
| | - Margarida Castell
- Physiology Section, Department of Biochemistry and Physiology, Faculty of Pharmacy and Food Science, University of Barcelona, 08028 Barcelona, Spain; Nutrition and Food Safety Research Institute (INSA·UB), 08921 Santa Coloma de Gramenet, Spain; CIBER Physiopathology of Obesity and Nutrition (CIBEROBN), Institute of Health Carlos III, 28029 Madrid, Spain.
| | - María J Rodríguez-Lagunas
- Physiology Section, Department of Biochemistry and Physiology, Faculty of Pharmacy and Food Science, University of Barcelona, 08028 Barcelona, Spain; Nutrition and Food Safety Research Institute (INSA·UB), 08921 Santa Coloma de Gramenet, Spain.
| | - Francisco J Pérez-Cano
- Physiology Section, Department of Biochemistry and Physiology, Faculty of Pharmacy and Food Science, University of Barcelona, 08028 Barcelona, Spain; Nutrition and Food Safety Research Institute (INSA·UB), 08921 Santa Coloma de Gramenet, Spain.
| | - Àngels Franch
- Physiology Section, Department of Biochemistry and Physiology, Faculty of Pharmacy and Food Science, University of Barcelona, 08028 Barcelona, Spain; Nutrition and Food Safety Research Institute (INSA·UB), 08921 Santa Coloma de Gramenet, Spain.
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96
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Zhao X, Yang Y, Wang Y, Chen X, Yao Y, Yuan T, Li J, Li Y, Song X. Roles of noncoding RNA in allergic rhinitis. Int Forum Allergy Rhinol 2024. [PMID: 39367803 DOI: 10.1002/alr.23461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2024] [Revised: 09/03/2024] [Accepted: 09/13/2024] [Indexed: 10/07/2024]
Abstract
BACKGROUND Allergic rhinitis (AR) is one of the most common respiratory noninfectious diseases and chronic inflammatory diseases, the incidence of which has been increasing in recent years. The main pathological characteristics of AR are repeated inflammation, airway hyperreactivity, mucus hypersecretion, and reversible airway obstruction due to inflammatory cell response. AR occurrence is associated with various factors, including those of genetic and environmental origins. Noncoding RNAs (ncRNAs) are a group of RNA molecules that cannot be converted into polypeptides. The three main categories of ncRNAs include microRNAs (miRNAs), long ncRNAs (lncRNAs), and circular RNAs (circRNAs). NcRNAs play a crucial role in controlling gene expression and contribute to the development of numerous human diseases. METHODS Articles are selected based on Pubmed's literature review and the author's personal knowledge. The largest and highest quality studies were included. The search selection is not standardized. Several recent studies have indicated the relationship of ncRNAs with the development of respiratory allergic diseases. NcRNAs, including miRNAs, lncRNAs, and circRNAs, are important gene expression regulatory factors. We review the expression and function of ncRNAs in AR, their role as disease biomarkers, and their prospective applicability in future research and clinically. We also discuss interactions between ncRNAs and their influence on AR comprehensively, these interactions are essential for determining the underlying pathological mechanisms further and discovering new drug therapeutic targets. RESULTS NcRNAs can be used as biomarkers for early AR diagnosis, disease surveillance and prognosis assessment. Various categories of ncRNAs play distinct yet interconnected roles and actively contribute to intricate gene regulatory networks. They are also therapeutic targets and biomarkers in other allergic diseases. CONCLUSION This article demonstrates ncRNAs have a wide range of applications in AR treatment. The database covers three key areas: miRNAs, lncRNAs, and circRNAs. Additionally, potential avenues for future research to facilitate the practical application of ncRNAs as therapeutic targets and biomarkers will be explore. With further research and technological development, ncRNAs may provide additional innovative, effective solutions for AR treatment.
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Affiliation(s)
- Xiangkun Zhao
- Department of Clinical Medicine, The Second School of Clinical Medicine of Binzhou Medical University, Yantai, China
- Department of Otolaryngology, Head and Neck Surgery, Yantai Yuhuangding Hospital, Qingdao University, Yantai, China
- Shandong Provincial Clinical Research Center for Otorhinolaryngologic Diseases, Yantai Yuhuangding Hospital, Qingdao University, Yantai, China
- Yantai Key Laboratory of Otorhinolaryngologic Diseases, Yantai, China
| | - Yuteng Yang
- Department of Clinical Medicine, The Second School of Clinical Medicine of Binzhou Medical University, Yantai, China
- Department of Otolaryngology, Head and Neck Surgery, Yantai Yuhuangding Hospital, Qingdao University, Yantai, China
- Shandong Provincial Clinical Research Center for Otorhinolaryngologic Diseases, Yantai Yuhuangding Hospital, Qingdao University, Yantai, China
- Yantai Key Laboratory of Otorhinolaryngologic Diseases, Yantai, China
| | - Yaqi Wang
- Department of Otolaryngology, Head and Neck Surgery, Yantai Yuhuangding Hospital, Qingdao University, Yantai, China
- Shandong Provincial Clinical Research Center for Otorhinolaryngologic Diseases, Yantai Yuhuangding Hospital, Qingdao University, Yantai, China
- Yantai Key Laboratory of Otorhinolaryngologic Diseases, Yantai, China
| | - Xi Chen
- Department of Otolaryngology, Head and Neck Surgery, Yantai Yuhuangding Hospital, Qingdao University, Yantai, China
- Shandong Provincial Clinical Research Center for Otorhinolaryngologic Diseases, Yantai Yuhuangding Hospital, Qingdao University, Yantai, China
- Yantai Key Laboratory of Otorhinolaryngologic Diseases, Yantai, China
| | - Yisong Yao
- Department of Otolaryngology, Head and Neck Surgery, Yantai Yuhuangding Hospital, Qingdao University, Yantai, China
- Shandong Provincial Clinical Research Center for Otorhinolaryngologic Diseases, Yantai Yuhuangding Hospital, Qingdao University, Yantai, China
- Yantai Key Laboratory of Otorhinolaryngologic Diseases, Yantai, China
| | - Ting Yuan
- Department of Otolaryngology, Head and Neck Surgery, Yantai Yuhuangding Hospital, Qingdao University, Yantai, China
- Shandong Provincial Clinical Research Center for Otorhinolaryngologic Diseases, Yantai Yuhuangding Hospital, Qingdao University, Yantai, China
- Yantai Key Laboratory of Otorhinolaryngologic Diseases, Yantai, China
| | - Jiaxuan Li
- Department of Otolaryngology, Head and Neck Surgery, Yantai Yuhuangding Hospital, Qingdao University, Yantai, China
- Shandong Provincial Clinical Research Center for Otorhinolaryngologic Diseases, Yantai Yuhuangding Hospital, Qingdao University, Yantai, China
- Yantai Key Laboratory of Otorhinolaryngologic Diseases, Yantai, China
| | - Yumei Li
- Department of Otolaryngology, Head and Neck Surgery, Yantai Yuhuangding Hospital, Qingdao University, Yantai, China
- Shandong Provincial Clinical Research Center for Otorhinolaryngologic Diseases, Yantai Yuhuangding Hospital, Qingdao University, Yantai, China
- Yantai Key Laboratory of Otorhinolaryngologic Diseases, Yantai, China
| | - Xicheng Song
- Department of Clinical Medicine, The Second School of Clinical Medicine of Binzhou Medical University, Yantai, China
- Department of Otolaryngology, Head and Neck Surgery, Yantai Yuhuangding Hospital, Qingdao University, Yantai, China
- Shandong Provincial Clinical Research Center for Otorhinolaryngologic Diseases, Yantai Yuhuangding Hospital, Qingdao University, Yantai, China
- Yantai Key Laboratory of Otorhinolaryngologic Diseases, Yantai, China
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Amarilla-Irusta A, Zenarruzabeitia O, Sevilla A, Sandá V, Lopez-Pardo A, Astarloa-Pando G, Pérez-Garay R, Pérez-Fernández S, Meijide S, Imaz-Ayo N, Arana-Arri E, Amo L, Borrego F. CD151 identifies an NK cell subset that is enriched in COVID-19 patients and correlates with disease severity. J Infect 2024; 89:106304. [PMID: 39374860 DOI: 10.1016/j.jinf.2024.106304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2024] [Revised: 09/27/2024] [Accepted: 09/29/2024] [Indexed: 10/09/2024]
Abstract
Severe coronavirus disease 2019 (COVID-19) often leads to acute respiratory distress syndrome and multi-organ dysfunction, driven by a dysregulated immune response, including a cytokine storm with elevated proinflammatory cytokine levels. Natural killer (NK) cells are part of the innate immune system with a fundamental role in the defense against viral infections. However, during COVID-19 acute infection, they exhibit an altered phenotype and impaired functionality contributing to the immunopathogenesis of the disease. In this work, we have studied a cohort of patients with COVID-19 (ranging from mild to severe) by analyzing IL-15, TGF-β, PlGF and GDF-15 plasma levels and performing multiparametric flow cytometry studies. Our results revealed that severe COVID-19 patients exhibited high levels of IL-15, PlGF and GDF-15, along with an enrichment of an NK cell subset expressing the CD151 tetraspanin, which correlated with IL-15 plasma levels and disease severity. In patients, these CD151+ NK cells displayed a more activated phenotype characterized by an increased expression of HLA-DR, CD38 and granzyme B, a distinct receptor repertoire, with lower levels of CD160 and CD31 and higher levels of CD55 and, remarkably, a higher expression of tissue-resident markers CD103 and the NK cell decidual marker CD9. Last of all, in individuals with severe disease, we identified an expansion of a CD151brightCD9+ NK cell subset, suggesting that these cells play a specific role in COVID-19. Altogether, our findings suggest that CD151+ NK cells may have a relevant role in COVID-19 immunopathogenesis.
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Affiliation(s)
| | - Olatz Zenarruzabeitia
- Immunopathology Group, Biobizkaia Health Research Institute, Barakaldo, Spain; Department of Genetics, Physical Anthropology and Animal Physiology, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Leioa, Spain
| | - Arrate Sevilla
- Immunopathology Group, Biobizkaia Health Research Institute, Barakaldo, Spain
| | - Víctor Sandá
- Immunopathology Group, Biobizkaia Health Research Institute, Barakaldo, Spain
| | - Ainara Lopez-Pardo
- Immunopathology Group, Biobizkaia Health Research Institute, Barakaldo, Spain
| | | | - Raquel Pérez-Garay
- Immunopathology Group, Biobizkaia Health Research Institute, Barakaldo, Spain; Clinical Analysis Service, Cruces University Hospital, OSI Ezkerraldea-Enkarterri-Cruces, Barakaldo, Spain
| | - Silvia Pérez-Fernández
- Scientific Coordination Facility, Biobizkaia Health Research Institute, Barakaldo, Spain
| | - Susana Meijide
- Scientific Coordination Facility, Biobizkaia Health Research Institute, Barakaldo, Spain
| | - Natale Imaz-Ayo
- Scientific Coordination Facility, Biobizkaia Health Research Institute, Barakaldo, Spain
| | - Eunate Arana-Arri
- Scientific Coordination Facility, Biobizkaia Health Research Institute, Barakaldo, Spain
| | - Laura Amo
- Immunopathology Group, Biobizkaia Health Research Institute, Barakaldo, Spain; Ikerbasque, Basque Foundation for Science, Bilbao, Spain
| | - Francisco Borrego
- Immunopathology Group, Biobizkaia Health Research Institute, Barakaldo, Spain; Ikerbasque, Basque Foundation for Science, Bilbao, Spain.
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98
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Sladek S, Unger-Manhart N, Siegl C, Dellago H, Zieglmayer PU, Lemell P, Savli M, Zieglmayer R, Geitzenauer W, Längauer M, Prieschl-Grassauer E. Alleviation of Allergic Rhinoconjunctivitis Symptoms in Participants Treated with a 0.005% Tacrolimus Eye-Drop Solution. Clin Ophthalmol 2024; 18:2797-2811. [PMID: 39386177 PMCID: PMC11463181 DOI: 10.2147/opth.s476163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2024] [Accepted: 08/27/2024] [Indexed: 10/12/2024] Open
Abstract
Purpose This randomized, placebo-controlled, crossover, double-blind trial aimed to evaluate the efficacy and safety of Tacrosolv, a novel 0.005% tacrolimus eye-drop solution, in adults with grass pollen-induced allergic conjunctivitis. Methods A total of 64 adult participants were randomized to receive 2.5 µg or 5 µg tacrolimus/eye/day or placebo treatment for 8 days, with grass pollen exposure on day 1 and day 8. After a 2-week washout period, placebo participants crossed over to Tacrosolv treatment and vice versa, with repeated treatment and exposure. During exposure, participants recorded ocular, nasal, and respiratory allergy symptoms every 15 minutes. The primary endpoint was the mean total ocular symptom score (TOSS) on day 8. Objective ocular safety parameters were assessed before, during, and after exposure. Adverse events were recorded throughout the study. Results On day 8, high-dose Tacrosolv reduced the TOSS compared to placebo towards the end of exposure (p<0.05 at time points 3 hours, 45 minutes and 4 hours). A 26% reduction in baseline adjusted TOSS from day 1 to day 8 was observed in participants treated with high-dose Tacrosolv, whereas placebo-treated participants showed no difference in TOSS between day 1 and day 8. Nasal symptoms were reduced on both day 1 and day 8 in participants treated with high-dose Tacrosolv (p<0.05). No safety concerns were raised. All adverse events were resolved within the study period. Conclusion High-dose Tacrosolv is safe and effective for alleviating symptoms of allergic rhinoconjunctivitis. Trial Registration NCT04532710; EudraCT No. 2019-002847-62.
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Affiliation(s)
| | | | | | | | - Petra U Zieglmayer
- Competence Center for Allergology and Immunology, Department of General Health Studies, Karl Landsteiner Private University for Health Sciences, Krems, Austria
| | - Patrick Lemell
- Power Project GmbH, Vienna Challenge Chamber, Vienna, Austria
| | - Markus Savli
- Biostatistik & Consulting GmbH, Zuerich, Switzerland
| | - René Zieglmayer
- Power Project GmbH, Vienna Challenge Chamber, Vienna, Austria
| | - Wolfgang Geitzenauer
- Krankenhaus der Barmherzigen Brüder, St. John Hospital, Department of Ophthalmology, Vienna, Austria
| | - Matthias Längauer
- Krankenhaus der Barmherzigen Brüder, St. John Hospital, Department of Ophthalmology, Vienna, Austria
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99
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Ahn HS, Lee SY, Kang MJ, Hong SB, Song JW, Do KH, Yeom J, Yu J, Oh Y, Hong JY, Chung EH, Kim K, Hong SJ. Polyhexamethylene guanidine aerosol causes irreversible changes in blood proteins that associated with the severity of lung injury. JOURNAL OF HAZARDOUS MATERIALS 2024; 478:135359. [PMID: 39126856 DOI: 10.1016/j.jhazmat.2024.135359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2024] [Revised: 07/04/2024] [Accepted: 07/26/2024] [Indexed: 08/12/2024]
Abstract
Polyhexamethylene guanidine (PHMG) is a positively charged polymer used as a disinfectant that kills microbes but can cause pulmonary fibrosis if inhaled. After the long-term risks were confirmed in South Korea, it became crucial to measure toxicity through diverse surrogate biomarkers, not only proteins, especially after these hazardous chemicals had cleared from the body. These biomarkers, identified by their biological functions rather than simple numerical calculations, effectively explained the imbalance of pulmonary surfactant caused by fibrosis from PHMG exposure. These long-term studies on children exposed to PHMG has shown that blood protein indicators, primarily related to apolipoproteins and extracellular matrix, can distinguish the degree of exposure to humidifier disinfectants (HDs). We defined the extreme gradient boosting models and computed reflection scores based on just ten selected proteins, which were also verified in adult women exposed to HD. The reflection scores successfully discriminated between the HD-exposed and unexposed groups in both children and adult females (AUROC: 0.957 and 0.974, respectively) and had a strong negative correlation with lung function indicators. Even after an average of more than 10 years, blood is still considered a meaningful specimen for assessing the impact of environmental exposure to toxic substances, with proteins providing in identifying the pathological severity of such conditions.
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Affiliation(s)
- Hee-Sung Ahn
- Convergence Medicine Research Center, Asan Institute for Life Sciences, Seoul, South Korea.
| | - So-Yeon Lee
- Department of Pediatrics, Childhood Asthma Atopy Center, Humidifier Disinfectant Health Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea.
| | - Mi-Jin Kang
- Humidifier Disinfectant Health Center, Asan Medical Center, Seoul, South Korea.
| | - Sang Bum Hong
- Department of Pulmonary and Critical Care Medicine, University of Ulsan College of Medicine, Asan Medical Center, Seoul, South Korea.
| | - Jin Woo Song
- Department of Pulmonary and Critical Care Medicine, University of Ulsan College of Medicine, Asan Medical Center, Seoul, South Korea
| | - Kyung Hyun Do
- Department of Radiology and Research Institute of Radiology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, South Korea.
| | - Jeounghun Yeom
- Prometabio Research Institute, prometabio co., ltd., Gyeonggi-do, South Korea.
| | - Jiyoung Yu
- Convergence Medicine Research Center, Asan Institute for Life Sciences, Seoul, South Korea.
| | - Yumi Oh
- Department of Biomedical Sciences, University of Ulsan College of Medicine, Asan Medical Center, Seoul, South Korea.
| | - Jeong Yeon Hong
- Department of Biomedical Sciences, University of Ulsan College of Medicine, Asan Medical Center, Seoul, South Korea.
| | - Eun Hee Chung
- Department of Pediatrics, Chungnam National University Hospital, Chungnam National University School of Medicine, Daejeon, South Korea.
| | - Kyunggon Kim
- Convergence Medicine Research Center, Asan Institute for Life Sciences, Seoul, South Korea; Department of Biomedical Sciences, University of Ulsan College of Medicine, Asan Medical Center, Seoul, South Korea.
| | - Soo-Jong Hong
- Department of Pediatrics, Childhood Asthma Atopy Center, Humidifier Disinfectant Health Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea.
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100
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Liu J, Yao B, Luo Y, Zhou Z, Ma X, Ding Y, Wang M. Effects of WuHuTang on the function and autophagy of dendritic cells treated with exosomes induced by RSV. JOURNAL OF ETHNOPHARMACOLOGY 2024; 332:118397. [PMID: 38806137 DOI: 10.1016/j.jep.2024.118397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2024] [Revised: 05/05/2024] [Accepted: 05/26/2024] [Indexed: 05/30/2024]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE WuHuTang (WHT) is a traditional Chinese medicine compound for treating asthma, and the evidence supports that it has a good effect on acute asthma attacks in children and adults. Respiratory syncytial virus (RSV) is an important factor in the pathogenesis of acute asthma attacks, and the effect on dendritic cells is the key to its pathogenesis. Previous studies have confirmed that the pathogenesis of viruses is related to exosomes. However, there are few studies on the exosomes induced by RSV. Whether WHT can improve the changes caused by RSV-induced exosomes or not is worthy of further exploration. AIM OF THE STUDY We aim to study the effects of RSV-induced exosomes on the function and autophagy of dendritic cells, and to observe the intervention effect of WHT serum on the above effects. METHODS The co-culture model of exosomes derived from bone marrow mesenchymal stem cells induced by RSV (BMSCs-Exo-RSV) and dendritic cells was established, and then WHT serum was used to intervene. After 24 h of intervention, the CCK-8 method, flow cytometry, Elisa, RT-qCPR, and Western blot were used to detect the above-mentioned culture model. RESULTS RSV-induced exosomes had certain effects on viability, apoptosis, and costimulatory molecules generation of dendritic cells. At the same time, the levels of IL-6, IL-12, TNF-α, and autophagy increased, while the levels of IL-4, IL-10, and TGF-β decreased, and the AKT/TSC/mTOR pathway was inhibited. WHT serum could activate this pathway and reverse the above changes in dendritic cells. CONCLUSION This study reveals that the pathogenic effect of RSV is related to the exosomes induced by RSV. The exosomes induced by RSV affect the function of dendritic cells by inhibiting the AKT/TSC/mTOR pathway, which can be activated by WHT to reverse the effects caused by RSV-induced exosomes.
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Affiliation(s)
- Jinglei Liu
- Hunan University of Chinese Medicine, Hunan, Changsha, 410208, China
| | - Bing Yao
- Hunan University of Chinese Medicine, Hunan, Changsha, 410208, China
| | - Yinhe Luo
- Hunan University of Chinese Medicine, Hunan, Changsha, 410208, China.
| | - Zhi Zhou
- Changsha Hospital for Maternal and Child Health, Hunan, Changsha, 410000, China
| | - Xiao Ma
- Hunan University of Chinese Medicine, Hunan, Changsha, 410208, China
| | - Yi Ding
- Changsha Social Work College, Hunan, Changsha, 410004, China
| | - Mengqing Wang
- The First Hospital of Hunan University of Chinese Medicine, Hunan, Changsha, 410007, China.
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