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Treadwell S, Green M, Gowda G, Levetin E, Carlson JC. Fungal Sensitization and Human Allergic Disease. Curr Allergy Asthma Rep 2024; 24:281-288. [PMID: 38575791 DOI: 10.1007/s11882-024-01144-y] [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] [Accepted: 03/19/2024] [Indexed: 04/06/2024]
Abstract
PURPOSE OF THE REVIEW Fungal sensitizations have been associated with hypersensitivity reactions with variable levels of evidence available to link types of fungi with human disease. We conducted systematic reviews of the literature to identify the strength of evidence linking lesser-studied fungi for which there are commercially available extracts to identify populations in which they were useful in clinical practice. RECENT FINDINGS Excluding five fungi for which hundreds of articles were identified, there are 54 articles on the remaining fungi with clinical data. For 12 of the fungi, the prevalence of fungal sensitization varies in different hypersensitivity disorders due to factors related to geographic areas, age, and other underlying medical conditions. There were no studies linking seven genera to human disease. Most of the commercially available fungal extracts are uncommonly associated with hypersensitivity reactions in humans. Specific extracts may be useful in particular disease states such as allergic fungal sinusitis or allergic bronchopulmonary mycosis, or when routine testing fails to identify a cause of uncontrolled disease, such as in asthma.
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Affiliation(s)
- Scout Treadwell
- Tulane University School of Medicine, 1430 Tulane Avenue New, Orleans, LA, 70112, USA
| | - Maxwell Green
- Tulane University School of Medicine, 1430 Tulane Avenue New, Orleans, LA, 70112, USA
| | - Geetha Gowda
- Tulane University School of Medicine, 1430 Tulane Avenue New, Orleans, LA, 70112, USA
| | - Estelle Levetin
- University of Tulsa, 800 S. Tucker Drive, Tulsa, OK, 74104, USA
| | - John C Carlson
- Ochsner Health Center, 1401 Jefferson Hwy, New Orleans, LA, 70121, USA.
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Rodríguez J, Vázquez L, Flórez AB, Mayo B. Epicoccum sp. as the causative agent of a reddish-brown spot defect on the surface of a hard cheese made of raw ewe milk. Int J Food Microbiol 2023; 406:110401. [PMID: 37722266 DOI: 10.1016/j.ijfoodmicro.2023.110401] [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: 03/30/2023] [Revised: 06/29/2023] [Accepted: 09/13/2023] [Indexed: 09/20/2023]
Abstract
Colour defects can affect the appearance of cheese, its flavour, the safety of its consumption, and the price it can demand. This work reports the identification of five fungal isolates from a dairy plant where the surface of most cheeses was affected by patent, reddish-to-brown stains. One of these isolates was obtained from cheese, two from brine, and two from a bulk tank containing ewe milk. Molecular identification by partial amplification, sequencing, and database comparison of the concatenated sequence of the genes coding for the largest subunit of RNA polymerase II (RPB2), β-tubulin (β-TUB), and the large subunit of the rRNA molecule (LSU), plus the internal transcribed sequence (ITS) regions, assigned the isolates to Epicoccum layuense, Epicoccum italicum, and Epicoccum mezzettii. Features of the growth of these different species on different agar-based media, and of the morphology of their conidia following sporulation, are also reported. The strain isolated from cheese, E. layuense IPLA 35011, was able to recreate the reddish-brown stains on slices of Gouda-like cheese, which linked the fungus with the colour defect. In addition, two other strains, E. italicum IPLA 35013 from brine and E. italicum IPLA 35014 from milk, also produced stains on cheese slices. Epicoccum species are widely recognized as plant pathogens but have seldom been reported in the dairy setting, and never as human or animal pathogens.
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Affiliation(s)
- Javier Rodríguez
- Departamento de Microbiología y Bioquímica, Instituto de Productos Lácteos de Asturias (IPLA), Consejo Superior de Investigaciones Científicas (CSIC), Paseo Río Linares s/n, 33300 Villaviciosa, Spain; Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Avenida de Roma s/n, 33011 Oviedo, Spain
| | - Lucía Vázquez
- Departamento de Microbiología y Bioquímica, Instituto de Productos Lácteos de Asturias (IPLA), Consejo Superior de Investigaciones Científicas (CSIC), Paseo Río Linares s/n, 33300 Villaviciosa, Spain; Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Avenida de Roma s/n, 33011 Oviedo, Spain
| | - Ana Belén Flórez
- Departamento de Microbiología y Bioquímica, Instituto de Productos Lácteos de Asturias (IPLA), Consejo Superior de Investigaciones Científicas (CSIC), Paseo Río Linares s/n, 33300 Villaviciosa, Spain; Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Avenida de Roma s/n, 33011 Oviedo, Spain
| | - Baltasar Mayo
- Departamento de Microbiología y Bioquímica, Instituto de Productos Lácteos de Asturias (IPLA), Consejo Superior de Investigaciones Científicas (CSIC), Paseo Río Linares s/n, 33300 Villaviciosa, Spain; Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Avenida de Roma s/n, 33011 Oviedo, Spain.
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Hajhosseini M, Sharifi I, Bamorovat M, Karamoozian A, Amanizadeh A, Agha Kuchak Afshari S. Monitoring of airborne fungi during the second wave of COVID-19 in selected wards of the referral university hospital in southeastern Iran. ENVIRONMENTAL MONITORING AND ASSESSMENT 2023; 195:1132. [PMID: 37653110 DOI: 10.1007/s10661-023-11791-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Accepted: 08/24/2023] [Indexed: 09/02/2023]
Abstract
Microbiological monitoring of the air hospital is essential for prevention and control, due to the possible airborne route of infection transmission, especially in high-risk wards. This study aimed to monitor the airborne fungi during the second wave of the COVID-19 pandemic in selected wards of the biggest university educational hospital in Kerman, southeastern Iran. This study was conducted in 11 different wards, separated into the patient room and nursing station, of the Afzalipour hospital from May to August 2021. Fungal isolates were characterized to the species level by conventional and sequencing methods. Out of 93 obtained fungal colonies, 70 (75.3%) isolates were filamentous and 23 (24.7%) isolates were yeast. Aspergillus species were the predominant fungal isolates among the filamentous colonies (n=19; 27.1%), and Naganishia albida (formerly Cryptococcus albidus) was identified as the most common yeast isolate (n=13/23; 56.8%). The infectious ward was the most contaminated unit (n=19/93), while the least contaminated units were the neonatal intensive care unit (n=3/93), and oncology (n=3/93). The statistical findings displayed that the number of fungal isolates in patients' rooms is significantly higher than in nurses' stations (p-value=0.013). Our study demonstrated the presence of diverse fungal species in all wards of the hospital. Considering the presence of airborne fungi in hospitals and related public health problems is one of the critical issues for health systems management. In this regard, efficient monitoring of airborne fungi might play an influential role in hospital infection control and surveillance, particularly in high-risk hospitalization patients in critical wards.
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Affiliation(s)
- Mahdi Hajhosseini
- Department of Environmental Health Engineering, School of Public Health, Environmental Science and Technology Research Center, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
- Medical Mycology and Bacteriology Research Center, Kerman University of Medical Sciences, Kerman, Iran
| | - Iraj Sharifi
- Leishmaniasis Research Center, Kerman University of Medical Sciences, Kerman, Iran
| | - Mehdi Bamorovat
- Leishmaniasis Research Center, Kerman University of Medical Sciences, Kerman, Iran
| | - Ali Karamoozian
- Department of Biostatistics and Epidemiology, Faculty of Health, Kerman University of Medical Sciences, Kerman, Iran
| | - Azam Amanizadeh
- Medical Mycology and Bacteriology Research Center, Kerman University of Medical Sciences, Kerman, Iran
- Department of Medical Parasitology and Mycology, Afzalipour Faculty of Medicine, Kerman University of Medical Sciences, Kerman, Iran
| | - Setareh Agha Kuchak Afshari
- Medical Mycology and Bacteriology Research Center, Kerman University of Medical Sciences, Kerman, Iran.
- Department of Medical Parasitology and Mycology, Afzalipour Faculty of Medicine, Kerman University of Medical Sciences, Kerman, Iran.
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Sarno G, Stanisci I, Maio S, Williams S, Ming KE, Diaz SG, Ponte EV, Lan LTT, Soronbaev T, Behera D, Tagliaferro S, Baldacci S, Viegi G. Issue 2 - "Update on adverse respiratory effects of indoor air pollution". Part 2): Indoor air pollution and respiratory diseases: Perspectives from Italy and some other GARD countries. Pulmonology 2023:S2531-0437(23)00083-1. [PMID: 37211526 DOI: 10.1016/j.pulmoe.2023.03.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Accepted: 03/20/2023] [Indexed: 05/23/2023] Open
Abstract
OBJECTIVE to synthesize the Italian epidemiological contribution to knowledge on indoor pollution respiratory impact, and to analyze the perspective of some GARD countries on the health effects of indoor air pollution. RESULTS Italian epidemiological analytical studies confirmed a strong relationship between indoor air pollution and health in general population. Environmental tobacco smoke, biomass (wood/coal) fuel for cooking/heating and indoor allergens (house dust mites, cat and dog dander, mold/damp) are the most relevant indoor pollution sources and are related to respiratory and allergic symptoms/diseases in Italy and in other GARD countries such as Mexico, Brazil, Vietnam, India, Nepal and Kyrgyzstan. Community-based global health collaborations are working to improve prevention, diagnosis and care of respiratory diseases around the world, specially in low- and middle-income countries, through research and education. CONCLUSIONS in the last thirty years, the scientific evidence produced on respiratory health effects of indoor air pollution has been extensive, but the necessity to empower the synergies between scientific community and local administrations remains a challenge to address in order to implement effective interventions. Based on abundant evidence of indoor pollution health effect, WHO, scientific societies, patient organizations and other members of the health community should work together to pursue the GARD vision of "a world where all people breathe freely" and encourage policy makers to increase their engagement in advocacy for clean air.
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Affiliation(s)
- G Sarno
- CNR Institute of Clinical Physiology (IFC), Via Trieste, 41, 56126 Pisa, Italy
| | - I Stanisci
- CNR Institute of Clinical Physiology (IFC), Via Trieste, 41, 56126 Pisa, Italy
| | - S Maio
- CNR Institute of Clinical Physiology (IFC), Via Trieste, 41, 56126 Pisa, Italy
| | - S Williams
- International Primary Care Respiratory Group (IPCRG), 19 Armour Mews, Larbert FK5 4FF, Scotland, United Kingdom
| | - K E Ming
- International Primary Care Respiratory Group (IPCRG), 19 Armour Mews, Larbert FK5 4FF, Scotland, United Kingdom
| | - S G Diaz
- Universidad Autónoma de Nuevo León, Faculty of Medicine and University Hospital "Dr. José Eleuterio González", Regional Center of Allergy and Clinical Immunology, Av. Dr. José Eleuterio González 235, Mitras Centro, 64460 Monterrey, N.L., Mexico
| | - E V Ponte
- Faculdade de Medicina de Jundiaí - Department of Internal Medicine, R. Francisco Teles, 250, Vila Arens II, Jundiaí SP, 13202-550, Brazil
| | - L T T Lan
- University Medical Center, 217 Hong Bang, dist.5, Ho Chi Minh City 17000, Vietnam
| | - T Soronbaev
- Department of Respiratory Medicine, National Center for Cardiology and Internal Medicine, Togolok Moldo str., Bishkek 720040, Kyrgyzstan
| | - D Behera
- Department of Microbiology, National Institute of Tuberculosis and Respiratory Diseases (NITRD), Sri Aurobindo Marg Near Qutub Minar, Mehrauli, New Delhi 110030, India
| | - S Tagliaferro
- CNR Institute of Clinical Physiology (IFC), Via Trieste, 41, 56126 Pisa, Italy
| | - S Baldacci
- CNR Institute of Clinical Physiology (IFC), Via Trieste, 41, 56126 Pisa, Italy
| | - G Viegi
- CNR Institute of Clinical Physiology (IFC), Via Trieste, 41, 56126 Pisa, Italy.
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Cho JH, Jun NS, Park JM, Bang KI, Hong JW. Fungal Load of Groundwater Systems in Geographically Segregated Islands: A Step Forward in Fungal Control. MYCOBIOLOGY 2022; 50:345-356. [PMID: 36404906 PMCID: PMC9645270 DOI: 10.1080/12298093.2022.2123549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 09/07/2022] [Accepted: 09/07/2022] [Indexed: 06/16/2023]
Abstract
The fungal distribution, diversity, and load were analyzed in the geographically segregated island groundwater systems in Korea. A total of 79 fungal isolates were secured from seven islands and identified based on the internal transcribed spacer (ITS) sequences. They belonged to three phyla (Ascomycota, Basidiomycota, and Chlorophyta), five classes, sixteen orders, twenty-two families, and thirty-one genera. The dominant phylum was Ascomycota (91.1%), with most fungi belonging to the Cladosporium (21.5%), Aspergillus (15.2%), and Stachybotrys (8.9%) genera. Cladosporium showed higher dominance and diversity, being widely distributed throughout the geographically segregated groundwater systems. Based on the diversity indices, the genera richness (4.821) and diversity (2.550) were the highest in the groundwater system of the largest scale. As turbidity (0.064-0.462) increased, the overall fungal count increased and the residual chlorine (0.089-0.308) had low relevance compared with the total count and fungal diversity. Cladosporium showed normal mycelial growth in de-chlorinated sterilized samples. Overall, if turbidity increases under higher fungal diversity, bio-deterioration in groundwater-supplying facilities and public health problems could be intensified, regardless of chlorine treatment. In addition to fungal indicators and analyzing methods, physical hydrostatic treatment is necessary for monitoring and controlling fungal contamination.
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Affiliation(s)
- Joong Hee Cho
- Water Quality Research Institute, Waterworks Headquarters Incheon Metropolitan City, Incheon, Republic of Korea
| | - Nam Soo Jun
- Water Quality Research Institute, Waterworks Headquarters Incheon Metropolitan City, Incheon, Republic of Korea
| | - Jong Myong Park
- Water Quality Research Institute, Waterworks Headquarters Incheon Metropolitan City, Incheon, Republic of Korea
| | - Ki In Bang
- Water Quality Research Institute, Waterworks Headquarters Incheon Metropolitan City, Incheon, Republic of Korea
| | - Ji Won Hong
- Department of Hydrogen and Renewable Energy, Kyungpook National University, Daegu, Republic of Korea
- Advanced Bio-resource Research Center, Kyungpook National University, Daegu, Republic of Korea
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Du C, Li B, Yu W, Yao R, Cai J, Li B, Yao Y, Wang Y, Chen M, Essah E. Characteristics of annual mold variations and association with childhood allergic symptoms/diseases via combining surveys and home visit measurements. INDOOR AIR 2022; 32:e13113. [PMID: 36168229 DOI: 10.1111/ina.13113] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Revised: 07/20/2022] [Accepted: 08/29/2022] [Indexed: 06/16/2023]
Abstract
The presence of dampness and visible molds leads to concerns of poor indoor air quality which has been consistently linked with increased exacerbation and development of allergy and respiratory diseases. Due to the limitations of epidemiological surveys, the actual fungal exposure characteristics in residences has not been sufficiently understood. This study aimed to characterize household fungal diversity and its annual temporal and spatial variations. We developed combined cross-sectional survey, repeated air sampling around a year, and DNA sequencing methods. The questionnaire survey was conducted in 2019, and 4943 valid cases were received from parents; a follow-up case-control study (11 cases and 12 controls) was designed, and onsite measurements of indoor environments were repeated in typical summer, transient season, and winter; dust from floor and beddings in children's room were collected and ITS based DNA sequencing of totally 68 samples was conducted. Results from 3361 children without changes to their residences since birth verified the significant associations of indoor dampness/mold indicators and prevalence of children-reported diseases, with increased adjusted odd ratios (aORs) >1 for studied asthma, wheeze, allergic rhinitis, and eczema. The airborne fungal concentrations from air sampling were higher than 1000 CFU/m3 in summer, regardless of indoors and outdoors, indicating an intermediate pollution level. The DNA sequencing for dust showed the Aspergillus was the predominant at genus level and the Aspergillus_penicillioides was the most common at species level; while the fungal community and composition varied significantly in different homes and seasons, according to α and β diversity analyses. The comprehensive research methods contribute to a holistic understanding of indoor fungal exposure, including the concentrations, seasonal variations, community, and diversity, and verifies the relations with children's adverse health outcomes. The study further elucidates the role of microbiome in human health, which helps setting health-protective thresholds and managing mold treatments in buildings, to promote indoor air quality and human well-beings.
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Affiliation(s)
- Chenqiu Du
- Joint International Research Laboratory of Green Buildings and Built Environments (Ministry of Education), School of Civil Engineering, Chongqing University, Chongqing, China
| | - Baizhan Li
- Joint International Research Laboratory of Green Buildings and Built Environments (Ministry of Education), School of Civil Engineering, Chongqing University, Chongqing, China
| | - Wei Yu
- Joint International Research Laboratory of Green Buildings and Built Environments (Ministry of Education), School of Civil Engineering, Chongqing University, Chongqing, China
| | - Runming Yao
- School of the Built Environment, University of Reading, Reading, UK
| | - Jiao Cai
- Joint International Research Laboratory of Green Buildings and Built Environments (Ministry of Education), School of Civil Engineering, Chongqing University, Chongqing, China
| | - Bicheng Li
- Joint International Research Laboratory of Green Buildings and Built Environments (Ministry of Education), School of Civil Engineering, Chongqing University, Chongqing, China
| | - Yinghui Yao
- Joint International Research Laboratory of Green Buildings and Built Environments (Ministry of Education), School of Civil Engineering, Chongqing University, Chongqing, China
| | - Yujue Wang
- Joint International Research Laboratory of Green Buildings and Built Environments (Ministry of Education), School of Civil Engineering, Chongqing University, Chongqing, China
| | - Min Chen
- Department of Radiation Oncology, Chongqing University Cancer Hospital, Chongqing, China
| | - Emmanuel Essah
- School of the Built Environment, University of Reading, Reading, UK
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Chen Y, Kong D, Fu J, Zhang Y, Zhao Y, Liu Y, Chang Z, Liu Y, Liu X, Xu K, Jiang C, Fan Z. Associations between ambient temperature and adult asthma hospitalizations in Beijing, China: a time-stratified case-crossover study. Respir Res 2022; 23:38. [PMID: 35189885 PMCID: PMC8862352 DOI: 10.1186/s12931-022-01960-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Accepted: 02/15/2022] [Indexed: 11/30/2022] Open
Abstract
Background Studies on the associations between ambient temperature and asthma hospitalizations are limited, and the results are controversial. We aimed to assess the short-term effects of ambient temperature on the risk of asthma hospitalizations and quantify the hospitalization burdens of asthma attributable to non-optimal temperature in adults in Beijing, China. Methods We collected daily asthma hospitalizations, meteorological factors and air quality data in Beijing from 2012 to 2015. We applied a time-stratified case-crossover design and fitted a distributed lag non-linear model with a conditional quasi-Poisson regression to explore the association between ambient temperature and adult asthma hospitalizations. The effect modifications of these associations by gender and age were assessed by stratified analyses. We also computed the attributable fractions and numbers with 95% empirical confidence intervals (eCI) of asthma hospitalizations due to extreme and moderate temperatures. Results From 2012 to 2015, we identified a total of 18,500 hospitalizations for asthma among adult residents in Beijing, China. Compared with the optimal temperature (22 °C), the cumulative relative risk (CRR) over lag 0–30 days was 2.32 with a 95% confidence interval (CI) of 1.57–3.42 for extreme cold corresponding to the 2.5th percentile (− 6.5 °C) of temperature distribution and 2.04 (95% CI 1.52–2.74) for extreme heat corresponding to the 97.5th percentile (29 °C) of temperature distribution. 29.1% (95% eCI 17.5–38.0%) of adult asthma hospitalizations was attributable to non-optimum temperatures. Moderate cold temperatures yielded most of the burdens, with an attributable fraction of 20.3% (95% eCI 9.1–28.7%). The temperature-related risks of asthma hospitalizations were more prominent in females and younger people (19–64 years old). Conclusions There was a U-shaped association between ambient temperature and the risk of adult asthma hospitalizations in Beijing, China. Females and younger patients were more vulnerable to the effects of non-optimum temperatures. Most of the burden was attributable to moderate cold. Our findings may uncover the potential impact of climate changes on asthma exacerbations. Supplementary Information The online version contains supplementary material available at 10.1186/s12931-022-01960-8.
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Affiliation(s)
- Yuxiong Chen
- Department of Medicine, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, No.1 Shuaifuyuan Wangfujing Dongcheng District,, Beijing, 100730, China
| | - Dehui Kong
- Department of Medicine, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, No.1 Shuaifuyuan Wangfujing Dongcheng District,, Beijing, 100730, China
| | - Jia Fu
- Department of Medicine, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, No.1 Shuaifuyuan Wangfujing Dongcheng District,, Beijing, 100730, China
| | - Yongqiao Zhang
- Department of Medicine, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, No.1 Shuaifuyuan Wangfujing Dongcheng District,, Beijing, 100730, China
| | - Yakun Zhao
- Department of Medicine, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, No.1 Shuaifuyuan Wangfujing Dongcheng District,, Beijing, 100730, China
| | - Yanbo Liu
- Department of Medicine, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, No.1 Shuaifuyuan Wangfujing Dongcheng District,, Beijing, 100730, China
| | - Zhen'ge Chang
- Department of Medicine, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, No.1 Shuaifuyuan Wangfujing Dongcheng District,, Beijing, 100730, China
| | - Yijie Liu
- Department of Medicine, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, No.1 Shuaifuyuan Wangfujing Dongcheng District,, Beijing, 100730, China
| | - Xiaole Liu
- Department of Medicine, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, No.1 Shuaifuyuan Wangfujing Dongcheng District,, Beijing, 100730, China
| | - Kaifeng Xu
- Department of Medicine, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, No.1 Shuaifuyuan Wangfujing Dongcheng District,, Beijing, 100730, China
| | - Chengyu Jiang
- Department of Biochemistry, State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, 100005, China
| | - Zhongjie Fan
- Department of Medicine, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, No.1 Shuaifuyuan Wangfujing Dongcheng District,, Beijing, 100730, China.
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Álvarez Castelló M, Almaguer Chávez M. Climate Change and Allergies. Fungal Biol 2022. [DOI: 10.1007/978-3-030-89664-5_13] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Zhou J, Cheng Y, Yu L, Zhang J, Zou X. Characteristics of fungal communities and the sources of mold contamination in mildewed tobacco leaves stored under different climatic conditions. Appl Microbiol Biotechnol 2022; 106:131-144. [PMID: 34850278 DOI: 10.1007/s00253-021-11703-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 11/14/2021] [Accepted: 11/15/2021] [Indexed: 01/16/2023]
Abstract
Tobacco mildew is a common postharvest problem caused by fungal growth. It can directly decrease product quality and cause serious economic loss in the tobacco industry. However, the fungal community characteristics of mildewed tobacco leaves and the related influencing factors remain unknown. Here, next-generation sequencing was used to characterize the fungal communities present in mildewed and healthy tobacco leaves stored under three different climatic conditions. Mildewed leaves showed a higher pH and total nitrogen content as well as a lower carbon nitrogen ratio than healthy leaves. Fungal diversity and richness were significantly lower in the mildewed tobacco leaves than in healthy tobacco leaves, with saprophytic fungi such as Xeromyces, Aspergillus, and Wallemia being the dominant molds. Network analysis showed that the complexity, connectivity, and stability of the fungal network were significantly poorer in heavy mildew tobacco leaves than in healthy leaves. NMDS and PERMANOVA analysis showed that the distribution of fungal communities in warehoused tobacco leaves differed significantly across different regions, and temperature and humidity were the key factors affecting these differences. Mildew-causing fungi were significantly enriched in tobacco leaf samples collected in the period between the completion of flue-curing and the start of pre-re-curing. This study demonstrated that mildew is an irreversible process that destroys the balance of the tobacco ecosystem, and that environmental factors play important roles in shaping fungal communities in tobacco leaves.Key points• The diversity and composition of the fungal communities in mildewed tobacco leaves were significantly different from those in healthy tobacco leaves.• Climatic factors may play an important role in shaping fungal communities in tobacco leaves.• Tobacco leaves were most vulnerable to mold contamination between the post-flue-curing and pre-re-curing period.
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Affiliation(s)
- Jiaxi Zhou
- Department of Ecology/Institute of Fungus Resources, College of Life Sciences, Guizhou University, Guiyang, China
| | - Yu Cheng
- Department of Ecology/Institute of Fungus Resources, College of Life Sciences, Guizhou University, Guiyang, China
| | - Lifei Yu
- Department of Ecology/Institute of Fungus Resources, College of Life Sciences, Guizhou University, Guiyang, China
- The Key Laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), Collaborative Innovation Center for Mountain Ecology & Agro-Bioengineering (CICMEAB), Guizhou University, Guiyang, China
| | - Jian Zhang
- Department of Ecology/Institute of Fungus Resources, College of Life Sciences, Guizhou University, Guiyang, China
| | - Xiao Zou
- Department of Ecology/Institute of Fungus Resources, College of Life Sciences, Guizhou University, Guiyang, China.
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Yang H, Tong F, Qi C, Wang P, Li J, Cheng L. Prioritizing Disease-Related Microbes Based on the Topological Properties of a Comprehensive Network. Front Microbiol 2021; 12:685549. [PMID: 34326821 PMCID: PMC8315281 DOI: 10.3389/fmicb.2021.685549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Accepted: 05/10/2021] [Indexed: 01/09/2023] Open
Abstract
Many microbes are parasitic within the human body, engaging in various physiological processes and playing an important role in human diseases. The discovery of new microbe-disease associations aids our understanding of disease pathogenesis. Computational methods can be applied in such investigations, thereby avoiding the time-consuming and laborious nature of experimental methods. In this study, we constructed a comprehensive microbe-disease network by integrating known microbe-disease associations from three large-scale databases (Peryton, Disbiome, and gutMDisorder), and extended the random walk with restart to the network for prioritizing unknown microbe-disease associations. The area under the curve values of the leave-one-out cross-validation and the fivefold cross-validation exceeded 0.9370 and 0.9366, respectively, indicating the high performance of this method. Despite being widely studied diseases, in case studies of inflammatory bowel disease, asthma, and obesity, some prioritized disease-related microbes were validated by recent literature. This suggested that our method is effective at prioritizing novel disease-related microbes and may offer further insight into disease pathogenesis.
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Affiliation(s)
- Haixiu Yang
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, China
| | - Fan Tong
- Academy of Military Medical Science, Beijing, China
| | - Changlu Qi
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, China
| | - Ping Wang
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, China
| | - Jiangyu Li
- Academy of Military Medical Science, Beijing, China
| | - Liang Cheng
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, China.,NHC and CAMS Key Laboratory of Molecular Probe and Targeted Theranostics, Harbin Medical University, Harbin, China
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11
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Gasana J, Ibrahimou B, Albatineh AN, Al-Zoughool M, Zein D. Exposures in the Indoor Environment and Prevalence of Allergic Conditions in the United States of America. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18094945. [PMID: 34066511 PMCID: PMC8124238 DOI: 10.3390/ijerph18094945] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Revised: 04/25/2021] [Accepted: 04/27/2021] [Indexed: 11/24/2022]
Abstract
Our study examines the association of the presence of mildew, cockroaches, and pets in homes as well as household dust allergens with the prevalence and/or severity of allergic diseases. No study has concurrently assessed home environment exposures in relation to allergic conditions in the general US population. Data from 5409 participants from the 2005–2006 National Health and Nutrition Examination Survey (NHANES) living in their current homes for ≥one year were analyzed. Multivariate logistic regression analyses between home exposures and allergic diseases prevalence and severity were performed. In adjusted analyses, mildew was associated with higher current asthma, allergies, and allergic rhinitis prevalence; endotoxin, with higher current asthma prevalence; and dust Canis familiaris (Can f) 1, with higher allergic rhinitis prevalence. However, presence of cockroaches and dust Dermatophagoides farinae (Der f) 1 were associated, respectively, with lower current asthma and allergies prevalence. Presence of mildew, dust Der f1, Dermatophagoides pteronyssinus (Der p) 1, Felis domesticus (Fel d) 1, and endotoxin were all associated with asthma and/or wheeze severity. Non-atopic asthma was more frequent with mildew and/or musty smell dust and higher dust Fel d1 concentration, while atopic asthma was more prevalent with higher Can f1 and endotoxin concentrations in dust. This study confirms previous relationships and reports novel associations, generating hypotheses for future research.
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Affiliation(s)
- Janvier Gasana
- Department of Environmental and Occupational Health, Faculty of Public Health, Kuwait University, Hawally P.O. Box 24923, Safat 13119, Kuwait; (M.A.-Z.); (D.Z.)
- Correspondence:
| | - Boubakari Ibrahimou
- Department of Biostatistics, Stempel School of Public Health, Florida International University, Miami, FL 33199, USA;
| | - Ahmed N. Albatineh
- Department of Community Medicine and Behavioral Sciences, Faculty of Medicine, Kuwait University, Jabriya P.O. Box 46300, Safat 13119, Kuwait;
| | - Mustafa Al-Zoughool
- Department of Environmental and Occupational Health, Faculty of Public Health, Kuwait University, Hawally P.O. Box 24923, Safat 13119, Kuwait; (M.A.-Z.); (D.Z.)
| | - Dina Zein
- Department of Environmental and Occupational Health, Faculty of Public Health, Kuwait University, Hawally P.O. Box 24923, Safat 13119, Kuwait; (M.A.-Z.); (D.Z.)
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12
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Crawford MS, Nordgren TM, McCole DF. Every breath you take: Impacts of environmental dust exposure on intestinal barrier function-from the gut-lung axis to COVID-19. Am J Physiol Gastrointest Liver Physiol 2021; 320:G586-G600. [PMID: 33501887 PMCID: PMC8054554 DOI: 10.1152/ajpgi.00423.2020] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Revised: 01/19/2021] [Accepted: 01/20/2021] [Indexed: 01/31/2023]
Abstract
As countries continue to industrialize, major cities experience diminished air quality, whereas rural populations also experience poor air quality from sources such as agricultural operations. These exposures to environmental pollution from both rural and populated/industrialized sources have adverse effects on human health. Although respiratory diseases (e.g., asthma and chronic obstructive pulmonary disease) are the most commonly reported following long-term exposure to particulate matter and hazardous chemicals, gastrointestinal complications have also been associated with the increased risk of lung disease from inhalation of polluted air. The interconnectedness of these organ systems has offered valuable insights into the roles of the immune system and the micro/mycobiota as mediators of communication between the lung and the gut during disease states. A topical example of this relationship is provided by reports of multiple gastrointestinal symptoms in patients with coronavirus disease 2019 (COVID-19), whereas the rapid transmission and increased risk of COVID-19 has been linked to poor air quality and high levels of particulate matter. In this review, we focus on the mechanistic effects of environmental pollution on disease progression with special emphasis on the gut-lung axis.
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Affiliation(s)
- Meli'sa S Crawford
- Division of Biomedical Sciences, School of Medicine, University of California, Riverside, California
| | - Tara M Nordgren
- Division of Biomedical Sciences, School of Medicine, University of California, Riverside, California
| | - Declan F McCole
- Division of Biomedical Sciences, School of Medicine, University of California, Riverside, California
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13
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Du C, Li B, Yu W, Cai J, Wang L, Li X, Yao Y, Li B. Evaluating the effect of building construction periods on household dampness/mold and childhood diseases corresponding to different energy efficiency design requirements. INDOOR AIR 2021; 31:541-556. [PMID: 32731305 DOI: 10.1111/ina.12723] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Revised: 05/31/2020] [Accepted: 07/19/2020] [Indexed: 06/11/2023]
Abstract
Despite concerns about building dampness and children' health, few studies have examined the effects of building energy efficiency standards. This study explored the connections between self-reported household dampness and children' adverse health outcomes across buildings corresponding to construction periods (pre-2001, 2001-2010, post-2010). Significant differences of dampness-related indicators were found between buildings; the prevalence was remarkable in pre-2001 buildings. The prevalence of lifetime-ever doctor-diagnosed diseases for children was significantly associated with building dampness (adjust odd ratios > 1), but was not affected by construction periods. The hygrothermal performance for a typical residence was simulated, varying in U-values of envelopes and air change rates. The simulated performance improvement increased indoor temperatures in 2001-2010 and post-2010 buildings. The frequency with higher indoor relative humidity was higher in pre-2001 buildings, leading to the highest values for maximum mold index (Mmax ) on wall surface, especially in winter. Compared to buildings in 2001-2010, increased insulation and lower air change rate led to a relatively higher relative humidity in post-2010 buildings, adversely increasing the Mmax values. The findings addressed the positive and negative role of building standard development, which help suggesting appropriate environmental and design solutions to trade-off energy savings and dampness/mold risk in residences.
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Affiliation(s)
- Chenqiu Du
- Joint International Research Laboratory of Green Buildings and Built Environments, Ministry of Education, Chongqing University, Chongqing, China
- National Centre for International Research of Low-carbon and Green Buildings, Ministry of Science and Technology, Chongqing University, Chongqing, China
| | - Baizhan Li
- Joint International Research Laboratory of Green Buildings and Built Environments, Ministry of Education, Chongqing University, Chongqing, China
- National Centre for International Research of Low-carbon and Green Buildings, Ministry of Science and Technology, Chongqing University, Chongqing, China
| | - Wei Yu
- Joint International Research Laboratory of Green Buildings and Built Environments, Ministry of Education, Chongqing University, Chongqing, China
- National Centre for International Research of Low-carbon and Green Buildings, Ministry of Science and Technology, Chongqing University, Chongqing, China
| | - Jiao Cai
- Joint International Research Laboratory of Green Buildings and Built Environments, Ministry of Education, Chongqing University, Chongqing, China
- National Centre for International Research of Low-carbon and Green Buildings, Ministry of Science and Technology, Chongqing University, Chongqing, China
| | - Lexiang Wang
- Joint International Research Laboratory of Green Buildings and Built Environments, Ministry of Education, Chongqing University, Chongqing, China
- National Centre for International Research of Low-carbon and Green Buildings, Ministry of Science and Technology, Chongqing University, Chongqing, China
| | - Xinyi Li
- Department of Civil and Structural Engineering, Sheffield University, Sheffield, UK
| | - Yinghui Yao
- Joint International Research Laboratory of Green Buildings and Built Environments, Ministry of Education, Chongqing University, Chongqing, China
- National Centre for International Research of Low-carbon and Green Buildings, Ministry of Science and Technology, Chongqing University, Chongqing, China
| | - Bicheng Li
- Joint International Research Laboratory of Green Buildings and Built Environments, Ministry of Education, Chongqing University, Chongqing, China
- National Centre for International Research of Low-carbon and Green Buildings, Ministry of Science and Technology, Chongqing University, Chongqing, China
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14
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Indoor Microbial Exposures and Chronic Lung Disease: From Microbial Toxins to the Microbiome. Clin Chest Med 2021; 41:777-796. [PMID: 33153695 DOI: 10.1016/j.ccm.2020.08.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Effects of environmental microbial exposures on human health have long been of interest. Microbes were historically assumed to be harmful, but data have suggested that microbial exposures can modulate the immune system. We focus on the effects of indoor environmental microbial exposure on chronic lung diseases. We found contradictory data in bacterial studies using endotoxin as a surrogate for bacterial exposure. Contradictory data also exist in studies of fungal exposure. Many factors may modulate the effect of environmental microbial exposures on lung health, including coexposures. Future studies need to clarify which method of assessing environmental microbial exposures is most relevant.
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15
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Tiotiu AI, Novakova P, Nedeva D, Chong-Neto HJ, Novakova S, Steiropoulos P, Kowal K. Impact of Air Pollution on Asthma Outcomes. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17176212. [PMID: 32867076 PMCID: PMC7503605 DOI: 10.3390/ijerph17176212] [Citation(s) in RCA: 170] [Impact Index Per Article: 42.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 08/20/2020] [Accepted: 08/25/2020] [Indexed: 12/15/2022]
Abstract
Asthma is a chronic respiratory disease characterized by variable airflow obstruction, bronchial hyperresponsiveness, and airway inflammation. Evidence suggests that air pollution has a negative impact on asthma outcomes in both adult and pediatric populations. The aim of this review is to summarize the current knowledge on the effect of various outdoor and indoor pollutants on asthma outcomes, their burden on its management, as well as to highlight the measures that could result in improved asthma outcomes. Traffic-related air pollution, nitrogen dioxide and second-hand smoking (SHS) exposures represent significant risk factors for asthma development in children. Nevertheless, a causal relation between air pollution and development of adult asthma is not clearly established. Exposure to outdoor pollutants can induce asthma symptoms, exacerbations and decreases in lung function. Active tobacco smoking is associated with poorer asthma control, while exposure to SHS increases the risk of asthma exacerbations, respiratory symptoms and healthcare utilization. Other indoor pollutants such as heating sources and molds can also negatively impact the course of asthma. Global measures, that aim to reduce exposure to air pollutants, are highly needed in order to improve the outcomes and management of adult and pediatric asthma in addition to the existing guidelines.
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Affiliation(s)
- Angelica I. Tiotiu
- Department of Pulmonology, University Hospital of Nancy, 54395 Nancy, France
- Development of Adaptation and Disadvantage, Cardiorespiratory Regulations and Motor Control (EA 3450 DevAH), University of Lorraine, 54395 Nancy, France
- Correspondence: ; Tel.: +33-383-154-299
| | - Plamena Novakova
- Clinic of Clinical Allergy, Medical University, 1000 Sofia, Bulgaria;
| | | | - Herberto Jose Chong-Neto
- Division of Allergy and Immunology, Department of Pediatrics, Federal University of Paraná, Curitiba 80000-000, Brazil;
| | - Silviya Novakova
- Allergy Unit, Internal Consulting Department, University Hospital “St. George”, 4000 Plovdiv, Bulgaria;
| | - Paschalis Steiropoulos
- Department of Respiratory Medicine, Medical School, Democritus University of Thrace, University General Hospital Dragana, 68100 Alexandroupolis, Greece;
| | - Krzysztof Kowal
- Department of Allergology and Internal Medicine, Medical University of Bialystok, 15-037 Bialystok, Poland;
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