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Chavez JR, Yao W, Dulin H, Castellanos J, Xu D, Hai R. Modeling the effects of cigarette smoke extract on influenza B virus infections in mice. Front Immunol 2023; 14:1083251. [PMID: 37033954 PMCID: PMC10076604 DOI: 10.3389/fimmu.2023.1083251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Accepted: 03/09/2023] [Indexed: 04/11/2023] Open
Abstract
Influenza B virus (IBV) is a major respiratory viral pathogen. Due to a lack of pandemic potential for IBV, there is a lag in research on IBV pathology and immunological responses compared to IAV. Therefore, the impact of various lifestyle and environmental factors on IBV infections, such as cigarette smoking (CS), remains elusive. Despite the increased risk and severity of IAV infections with CS, limited information exists on the impact of CS on IBV infections due to the absence of suitable animal models. To this end, we developed an animal model system by pre-treating mice for two weeks with cigarette smoke extract (CSE), then infected them with IBV and monitored the resulting pathological, immunological, and virological effects. Our results reveal that the CSE treatment decreased IBV specific IgG levels yet did not change viral replication in the upper airway/the lung, and weight recovery post infection. However, higher concentrations of CSE did result in higher mortality post infection. Together, this suggests that CS induced inflammation coupled with IBV infection resulted in exacerbated disease outcome.
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Affiliation(s)
- Jerald R. Chavez
- Department of Microbiology and Plant-pathology, University of California, Riverside, Riverside, CA, United States
- Genetics, Genomics and Bioinformatics Graduate Program, University of California, Riverside, Riverside, CA, United States
| | - Wangyuan Yao
- Department of Microbiology and Plant-pathology, University of California, Riverside, Riverside, CA, United States
| | - Harrison Dulin
- Department of Microbiology and Plant-pathology, University of California, Riverside, Riverside, CA, United States
- Cell, Molecular, and Developmental Biology Graduate Program, University of California, Riverside, Riverside, CA, United States
| | - Jasmine Castellanos
- Department of Microbiology and Plant-pathology, University of California, Riverside, Riverside, CA, United States
| | - Duo Xu
- Department of Microbiology and Plant-pathology, University of California, Riverside, Riverside, CA, United States
| | - Rong Hai
- Department of Microbiology and Plant-pathology, University of California, Riverside, Riverside, CA, United States
- *Correspondence: Rong Hai,
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2
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de Vargas KR, Freitas AA, Azeredo ACV, Silva DR. Smoking prevalence and effects on treatment outcomes in patients with tuberculosis. Rev Assoc Med Bras (1992) 2021; 67:406-410. [PMID: 34468606 DOI: 10.1590/1806-9282.20200825] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Accepted: 11/27/2020] [Indexed: 11/22/2022] Open
Abstract
OBJECTIVE More than 20% of tuberculosis (TB) cases worldwide are attributable to smoking, and it is associated with an increased risk of latent and active TB, recurrence, and mortality. The aim of this study is to assess the smoking prevalence and the effects on treatment outcomes in TB patients. METHODS A prospective cohort study was conducted in patients with a recent TB diagnosis. The smoking status was defined, in addition to the patients' knowledge and attitudes toward smoking. The patients were followed up until the end of the treatment, and the treatment result was recorded. RESULTS Ninety-two patients were included in this study. The prevalence of active smoking was 31.5%. Active smokers had less chance for cure (62.1% versus 82.5%; p=0.032) and more treatment dropout (31.0% versus 12.7%; p=0.035) than non-active smokers. Patients demonstrated positive attitudes and good knowledge about smoking. CONCLUSIONS Active smokers had less chance for cure and more abandonment than non-active smokers. These results can be useful for the proper planning of actions that impact TB control, especially in the treatment results, such as cognitive-behavioral approaches to smoking cessation.
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Affiliation(s)
- Kellyn Rocha de Vargas
- Universidade Federal do Rio Grande do Sul, Programa de Pós-Graduação em Ciências Pneumológicas - Porto Alegre (RS), Brazil
| | - Alana Ambos Freitas
- Universidade Federal do Rio Grande do Sul, Faculdade de Medicina - Porto Alegre (RS), Brazil
| | | | - Denise Rossato Silva
- Universidade Federal do Rio Grande do Sul, Programa de Pós-Graduação em Ciências Pneumológicas - Porto Alegre (RS), Brazil.,Universidade Federal do Rio Grande do Sul, Faculdade de Medicina - Porto Alegre (RS), Brazil
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3
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Adegbite BR, Edoa JR, Achimi Agbo P, Dejon-Agobé JC, N Essone P, Lotola-Mougeni F, Mbong Ngwese M, Mfoumbi A, Mevyann C, Epola M, Zinsou JF, Honkpehedji YJ, Agnandji ST, Kremsner PG, Alabi AS, Adegnika AA, Grobusch MP. Epidemiological, Mycobacteriological, and Clinical Characteristics of Smoking Pulmonary Tuberculosis Patients, in Lambaréné, Gabon: A Cross-Sectional Study. Am J Trop Med Hyg 2020; 103:2501-2505. [PMID: 32975178 DOI: 10.4269/ajtmh.20-0424] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Gabon carries a high burden of both tuberculosis (TB) and smoking. This study examines the disease characteristics of smoking pulmonary TB patients in Lambaréné. We interviewed adult pulmonary TB patients in Lambaréné, between March 2016 and April 2019. Clinical and biological patient characteristics were collected. Bivariate and logistic regression analyses were performed to assess factors associated with smoking. The mean age of patients included was 31 years (±13). The proportion of smokers in our study was 30% (89/295). Smoking was significantly associated with patient-related diagnostic delay (adjusted odds ratio [AOR] = 8.18; 95% CI = 3.67-19.56), a higher number of pulmonary TB signs and symptoms (AOR = 2.74; 95% CI = 1.18-6.73), and a higher sputum mycobacterial load (AOR = 3.18; 95% CI = 1.33-8.11). The prevalence of smoking among TB patients is high, and leading to aggravated disease as compared with controls. Our study findings suggest that smoking patients should be regularly screened for TB, to reduce diagnostic delay and TB transmission within community. Smoking cessation activities should be included in the national TB control program in Gabon.
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Affiliation(s)
- Bayode Romeo Adegbite
- Amsterdam Infection and Immunity, Amsterdam Public Health, University of Amsterdam, Amsterdam, The Netherlands.,Department of Infectious Diseases, Center of Tropical Medicine and Travel Medicine, Amsterdam University Medical Centers, Amsterdam, The Netherlands.,Centre de Recherches Médicales de Lambaréné and African Partner Institution, German Center for Infection Research, Lambaréné, Gabon
| | - Jean Ronald Edoa
- Centre de Recherches Médicales de Lambaréné and African Partner Institution, German Center for Infection Research, Lambaréné, Gabon
| | - Pacome Achimi Agbo
- Centre de Recherches Médicales de Lambaréné and African Partner Institution, German Center for Infection Research, Lambaréné, Gabon
| | - Jean Claude Dejon-Agobé
- Amsterdam Infection and Immunity, Amsterdam Public Health, University of Amsterdam, Amsterdam, The Netherlands.,Department of Infectious Diseases, Center of Tropical Medicine and Travel Medicine, Amsterdam University Medical Centers, Amsterdam, The Netherlands.,Centre de Recherches Médicales de Lambaréné and African Partner Institution, German Center for Infection Research, Lambaréné, Gabon
| | - Paulin N Essone
- Institut für Tropenmedizin, Universität Tübingen and German Center for Infection Research, Tübingen, Germany.,Centre de Recherches Médicales de Lambaréné and African Partner Institution, German Center for Infection Research, Lambaréné, Gabon
| | - Fabrice Lotola-Mougeni
- Centre de Recherches Médicales de Lambaréné and African Partner Institution, German Center for Infection Research, Lambaréné, Gabon
| | - Mirabeau Mbong Ngwese
- Centre de Recherches Médicales de Lambaréné and African Partner Institution, German Center for Infection Research, Lambaréné, Gabon
| | - Arnault Mfoumbi
- Centre de Recherches Médicales de Lambaréné and African Partner Institution, German Center for Infection Research, Lambaréné, Gabon
| | - Chester Mevyann
- Centre de Recherches Médicales de Lambaréné and African Partner Institution, German Center for Infection Research, Lambaréné, Gabon
| | - Micheska Epola
- Centre de Recherches Médicales de Lambaréné and African Partner Institution, German Center for Infection Research, Lambaréné, Gabon
| | - Jeannot Frejus Zinsou
- Department of Parasitology, Leiden University Medical Center, Leiden, The Netherlands.,Centre de Recherches Médicales de Lambaréné and African Partner Institution, German Center for Infection Research, Lambaréné, Gabon
| | - Yabo Josiane Honkpehedji
- Department of Parasitology, Leiden University Medical Center, Leiden, The Netherlands.,Centre de Recherches Médicales de Lambaréné and African Partner Institution, German Center for Infection Research, Lambaréné, Gabon
| | - Selidji Todagbe Agnandji
- Institut für Tropenmedizin, Universität Tübingen and German Center for Infection Research, Tübingen, Germany.,Centre de Recherches Médicales de Lambaréné and African Partner Institution, German Center for Infection Research, Lambaréné, Gabon
| | - Peter Gottfried Kremsner
- Institut für Tropenmedizin, Universität Tübingen and German Center for Infection Research, Tübingen, Germany.,Centre de Recherches Médicales de Lambaréné and African Partner Institution, German Center for Infection Research, Lambaréné, Gabon
| | - Abraham Sunday Alabi
- Institut für Tropenmedizin, Universität Tübingen and German Center for Infection Research, Tübingen, Germany.,Centre de Recherches Médicales de Lambaréné and African Partner Institution, German Center for Infection Research, Lambaréné, Gabon
| | - Ayola Akim Adegnika
- Department of Parasitology, Leiden University Medical Center, Leiden, The Netherlands.,Institut für Tropenmedizin, Universität Tübingen and German Center for Infection Research, Tübingen, Germany.,Centre de Recherches Médicales de Lambaréné and African Partner Institution, German Center for Infection Research, Lambaréné, Gabon
| | - Martin Peter Grobusch
- Department of Infectious Diseases, Center of Tropical Medicine and Travel Medicine, Amsterdam University Medical Centers, Amsterdam, The Netherlands.,Centre de Recherches Médicales de Lambaréné and African Partner Institution, German Center for Infection Research, Lambaréné, Gabon.,Institut für Tropenmedizin, Universität Tübingen and German Center for Infection Research, Tübingen, Germany.,Amsterdam Infection and Immunity, Amsterdam Public Health, University of Amsterdam, Amsterdam, The Netherlands
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Cholo MC, Rasehlo SSM, Venter E, Venter C, Anderson R. Effects of Cigarette Smoke Condensate on Growth and Biofilm Formation by Mycobacterium tuberculosis. BIOMED RESEARCH INTERNATIONAL 2020; 2020:8237402. [PMID: 32923486 PMCID: PMC7453263 DOI: 10.1155/2020/8237402] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Revised: 07/31/2020] [Accepted: 08/07/2020] [Indexed: 11/18/2022]
Abstract
MATERIALS AND METHODS The planktonic and biofilm-forming cultures were prepared in Middlebrook 7H9 and Sauton broth media, respectively, using Mtb strain, H37Rv. The effects of CSC at concentrations of 0.05-3.12 mg/L on growth, biofilm formation and structure were evaluated using microplate Alamar Blue assay, spectrophotometric procedure and scanning electron microscopy (SEM), respectively. Involvement of reactive oxygen species in CSC-mediated biofilm formation was investigated by including catalase in biofilm-forming cultures. RESULTS CSC did not affect the growth of planktonic bacteria, but rather led to a statistically significant increase in biofilm formation at concentrations of 0.4-3.12 mg/L, as well as in the viability of biofilm-forming bacteria at CSC concentrations of 0.2-1.56 mg/L. SEM confirmed an agglomerated biofilm matrix and irregular bacterial morphology in CSC-treated biofilms. Inclusion of catalase caused significant attenuation of CSC-mediated augmentation of biofilm formation by Mtb, implying involvement of oxidative stress. These findings demonstrate that exposure of Mtb to CSC resulted in increased biofilm formation that appeared to be mediated, at least in part, by oxidative stress, while no effect on planktonic cultures was observed. CONCLUSION Smoking-related augmentation of biofilm formation by Mtb may contribute to persistence of the pathogen, predisposing to disease reactivation and counteracting the efficacy of antimicrobial chemotherapy.
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Affiliation(s)
- Moloko C. Cholo
- Department of Immunology, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa
| | - Sipho S. M. Rasehlo
- Department of Medical Microbiology, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa
| | - Eudri Venter
- Laboratory for Microscopy and Microanalysis, Faculty of Natural and Agricultural Sciences, University of Pretoria, South Africa
| | - Chantelle Venter
- Laboratory for Microscopy and Microanalysis, Faculty of Natural and Agricultural Sciences, University of Pretoria, South Africa
| | - Ronald Anderson
- Department of Immunology, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa
- Institute for Cellular and Molecular Medicine, Department of Immunology, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa
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Aryanpur M, Yousefifard M, Oraii A, Heydari G, Kazempour-Dizaji M, Sharifi H, Hosseini M, Jamaati H. Effect of passive exposure to cigarette smoke on blood pressure in children and adolescents: a meta-analysis of epidemiologic studies. BMC Pediatr 2019; 19:161. [PMID: 31113399 PMCID: PMC6528314 DOI: 10.1186/s12887-019-1506-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/26/2018] [Accepted: 04/10/2019] [Indexed: 12/11/2022] Open
Abstract
Background Hypertension is an emerging disease in children and adolescents resulting in future morbidities. Cigarette smoking is one of the most studied contributing factors in this regard; however, there are contradictory results among different studies. Therefore, the present meta-analysis tends to assess the relationship between passive exposure to cigarette smoke and blood pressure in children and adolescents. Method Medline, Embase, Scopus, EBSCO, and Web of Sciences were systematically reviewed for observational studies up to May, 2017, in which the relationship between cigarette smoking and hypertension were assessed in children and adolescents. The meta-analysis was performed with a fixed effect or random effects model according to the heterogeneity. Results Twenty-nine studies were included in present meta-analysis incorporating 192,067 children and adolescents. Active smoking (pooled OR = 0.92; 95% CI: 0.79 to 1.05) or passive exposure to cigarette smoke (pooled OR = 1.01; 95% CI: 0.93 to 1.10) were not associated with developing hypertension in the study population. Despite the fact that active cigarette smoking did not significantly affect absolute level of systolic and diastolic blood pressure, it was shown that passive exposure to cigarette smoke leads to a significant increase in absolute level of systolic blood pressure (pooled coefficient = 0.26; 95% CI: 0.12 to 0.39). Conclusion Both active and passive cigarette smoking were not associated with developing hypertension in children and adolescents. However, passive cigarette smoke was associated with higher level of systolic blood pressure in children and adolescents.
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Affiliation(s)
- Mahshid Aryanpur
- Tobacco Prevention and Control Research Center, National Research Institute of Tuberculosis and Lung Diseases (NRITLD), Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mahmoud Yousefifard
- Physiology Research Center, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Alireza Oraii
- Department of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Gholamreza Heydari
- Tobacco Prevention and Control Research Center, National Research Institute of Tuberculosis and Lung Diseases (NRITLD), Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mehdi Kazempour-Dizaji
- Mycobacteriology Research Center, Biostatistics Unit, NRITLD, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hooman Sharifi
- Tobacco Prevention and Control Research Center, National Research Institute of Tuberculosis and Lung Diseases (NRITLD), Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mostafa Hosseini
- Department of Epidemiology and Biostatistics, School of Public Health, Tehran University of Medical Sciences, Poursina Ave, Tehran, Iran.
| | - Hamidreza Jamaati
- Tobacco Prevention and Control Research Center, National Research Institute of Tuberculosis and Lung Diseases (NRITLD), Shahid Beheshti University of Medical Sciences, Tehran, Iran
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6
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Zhang H, Xin H, Li X, Li H, Li M, Lu W, Bai L, Wang X, Liu J, Jin Q, Gao L. A dose-response relationship of smoking with tuberculosis infection: A cross-sectional study among 21008 rural residents in China. PLoS One 2017; 12:e0175183. [PMID: 28384350 PMCID: PMC5383252 DOI: 10.1371/journal.pone.0175183] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2017] [Accepted: 03/21/2017] [Indexed: 12/24/2022] Open
Abstract
Objectives China has high burden on both of tuberculosis (TB) and tobacco use. This study aims to explore the potential link between smoking and TB infection using baseline survey data of a large-scale population-based prospective study in rural China Methods Between July 1 and Sept 30, 2013, based on the baseline survey of a population-based, prospective study in rural China, the relationship between smoking and TB infection, assessed by interferon-gamma release assays (IGRA), was investigated among the total study population and only among those smokers, respectively. Results A total of 21,008 eligible rural registered residents (≥ 5 years old) from 4 rural sites were included in the analysis. Ever-smokers were more likely to be QuantiFERON-TB Gold In-Tube (QFT) positive than never smokers with an adjusted odds ratio (OR) of 1.34 (95% confidence interval (CI): 1.21–1.49). Among ever smokers, a significant linear dose–response relation was observed between duration of smoking (by years) and QFT positivity (p < 0.001). Stratified analysis suggested that such an association was not influenced by gender and age. Evidence for interaction of smoking status with age was found. Conclusions Our results provide further evidence to support smoking might increase host susceptibility to TB infection. Populations under high risk of infection, such as elderly smokers, should be prior to TB infection controlling under a premise of community level intervention.
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Affiliation(s)
- Haoran Zhang
- MOH Key Laboratory of Systems Biology of Pathogens, Institute of Pathogen Biology, and Centre for Tuberculosis, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Henan Xin
- MOH Key Laboratory of Systems Biology of Pathogens, Institute of Pathogen Biology, and Centre for Tuberculosis, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Xiangwei Li
- MOH Key Laboratory of Systems Biology of Pathogens, Institute of Pathogen Biology, and Centre for Tuberculosis, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Hengjing Li
- MOH Key Laboratory of Systems Biology of Pathogens, Institute of Pathogen Biology, and Centre for Tuberculosis, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Mufei Li
- MOH Key Laboratory of Systems Biology of Pathogens, Institute of Pathogen Biology, and Centre for Tuberculosis, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Wei Lu
- Jiangsu Provincial Center for Diseases Control and Prevention, Nanjing, China
| | - Liqiong Bai
- Hunan Provincial Institute of Tuberculosis Prevention and Control, Changsha, China
| | - Xinhua Wang
- Gansu Provincial Center for Diseases Control and Prevention, Lanzhou, China
| | - Jianmin Liu
- The Sixth People’s Hospital of Zhengzhou, Zhengzhou, China
| | - Qi Jin
- MOH Key Laboratory of Systems Biology of Pathogens, Institute of Pathogen Biology, and Centre for Tuberculosis, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Lei Gao
- MOH Key Laboratory of Systems Biology of Pathogens, Institute of Pathogen Biology, and Centre for Tuberculosis, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- * E-mail:
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7
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Peltzer K. Correlates of tobacco use among tuberculosis patients in South Africa: A brief report. JOURNAL OF PSYCHOLOGY IN AFRICA 2016. [DOI: 10.1080/14330237.2016.1219567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- Karl Peltzer
- ASEAN Institute for Health Development, Mahidol University, Salaya, Thailand
- Department of Research & Innovation, University of Limpopo, Turfloop, South Africa
- HIV/AIDS/STIs/and TB (HAST), Human Sciences Research Council, Pretoria, South Africa
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