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Macchione M, Yoshizaki K, Frias DP, Maier K, Smelan J, Prado CM, Mauad T. Fragrances as a trigger of immune responses in different environments. Toxicol In Vitro 2024; 96:105769. [PMID: 38142785 DOI: 10.1016/j.tiv.2023.105769] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Accepted: 12/18/2023] [Indexed: 12/26/2023]
Abstract
Fragrances can cause allergic skin reactions, expressed as allergic contact dermatitis and reactions in the respiratory tract that range from acute temporary upper airway irritation to obstructive lung disease. These adverse health effects may result from the stimulation of a specific (adaptive) immune response. Th1 cells, which essentially produce interleukin-2 (IL-2) and interferon-γ (IFN-γ), play a key role in allergic contact dermatitis and also on allergic sensitization to common allergens (e.g., nickel and fragrance). It has been shown that fragrance allergy leads to Th2/Th22 production of IL-4, IL-5 and IL-13, controlling the development of IgE and mediating hypersensitivity reactions in the lung, such as asthma. Cytokines released during immune response modulate the expression of cytochrome P450 (CYPs) proteins, which can result in alterations of the pharmacological effects of substances in inflammatory diseases. The mechanisms linking environment and immunity are still not completely understood but it is known that aryl hydrocarbon receptor (AhR) is a sensor with conserved ligand-activated transcription factor, highly expressed in cells that controls complex transcriptional programs which are ligand and cell type specific, with CYPs as targeted genes. This review focuses on these important aspects of immune responses of the skin and respiratory tract cells, describing some in vitro models applied to evaluate the mechanisms involved in fragrance-induced allergy.
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Affiliation(s)
- M Macchione
- Laboratory of Experimental Environmental Pathology, Department of Pathology, Sao Paulo University Medical School, Sao Paulo, Brazil.
| | - K Yoshizaki
- Laboratory of Experimental Environmental Pathology, Department of Pathology, Sao Paulo University Medical School, Sao Paulo, Brazil
| | - D P Frias
- Laboratory of Experimental Environmental Pathology, Department of Pathology, Sao Paulo University Medical School, Sao Paulo, Brazil
| | - K Maier
- Laboratory of Experimental Environmental Pathology, Department of Pathology, Sao Paulo University Medical School, Sao Paulo, Brazil
| | - J Smelan
- Laboratory of Experimental Environmental Pathology, Department of Pathology, Sao Paulo University Medical School, Sao Paulo, Brazil
| | - C M Prado
- Federal University of Sao Paulo, Santos, Brazil
| | - T Mauad
- Laboratory of Experimental Environmental Pathology, Department of Pathology, Sao Paulo University Medical School, Sao Paulo, Brazil
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Seriani R, Paula CPD, Cunha AFD, Oliveira MAD, Krempel PG, Frias DP, Negri EM, Mauad T, Macchione M. Expression patterns of peroxiredoxin genes in bronchial epithelial cells exposed to diesel exhaust particles. Exp Mol Pathol 2021; 120:104641. [PMID: 33901418 DOI: 10.1016/j.yexmp.2021.104641] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Revised: 03/07/2021] [Accepted: 04/21/2021] [Indexed: 11/18/2022]
Abstract
Several mechanisms have been suggested to explain the adverse effects of air pollutants on airway cells. One such explanation is the presence of high concentrations of oxidants and pro-oxidants in environmental pollutants. All animal and plant cells have developed several mechanisms to prevent damage by oxidative molecules. Among these, the peroxiredoxins (PRDXs) are of interest due to a high reactivity with reactive oxygen species (ROS) through the functioning of the thioredoxin/thioredoxin reductase system. This study aimed to verify the gene expression patterns of the PRDX family in bronchial epithelial airway cells (BEAS-2B) cells exposed to diesel exhaust particles (DEPs) at a concentration of 15 μg/mL for 1 or 2 h because this it is a major component of particulate matter in the atmosphere. There was a significant decrease in mRNA fold changes of PRDX2 (0.43 ± 0.34; *p = 0.0220), PRDX5 (0.43 ± 0.34; *p = 0.0220), and PRDX6 (0.33 ± 0.25; *p = 0.0069) after 1 h of exposure to DEPs. The reduction in mRNA levels may consequently lead to a decrease in the levels of PRDX proteins, increasing oxidative stress in bronchial epithelial cells BEAS-2B and thus, negatively affecting cellular functions.
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Affiliation(s)
- Robson Seriani
- Laboratory of Experimental Air Pollution (LIM05), Department of Pathology, School of Medicine, University of São Paulo, FMUSP- Av. Dr. Arnaldo 455, 1°floor, room 1150, São Paulo, SP 01246-903, Brazil; PROSCED - Consulting, Training and Development, Rua Alto Belo, 742, room 01, São Paulo, SP 03478-040, Brazil.
| | - Carla Peres de Paula
- Genetic and Evolution Department, Federal University of São Carlos, UFSCar- Av. Washington Luiz Km 235, São Carlos, SP 13565-905, Brazil
| | - Anderson Ferreira da Cunha
- Genetic and Evolution Department, Federal University of São Carlos, UFSCar- Av. Washington Luiz Km 235, São Carlos, SP 13565-905, Brazil
| | - Marcos Antonio de Oliveira
- Biosciences Institute, Coastal Campus, São Paulo State University, Structural and Functional Molecular Biology, UNESP- Praça Infante Dom Henrique s/n°, São Vicente, SP 11330-900, Brazil
| | - Paloma Gava Krempel
- Laboratory for Investigations in Ophthalmology (LIM-33), University of São Paulo Medical School São Paulo, FMUSP - Dr. Arnaldo 455, 5° floorr, São Paulo, SP 01246-903, Brazil
| | - Daniela Perroni Frias
- Laboratory of Experimental Air Pollution (LIM05), Department of Pathology, School of Medicine, University of São Paulo, FMUSP- Av. Dr. Arnaldo 455, 1°floor, room 1150, São Paulo, SP 01246-903, Brazil
| | - Elnara Marcia Negri
- Laboratory of Experimental Air Pollution (LIM05), Department of Pathology, School of Medicine, University of São Paulo, FMUSP- Av. Dr. Arnaldo 455, 1°floor, room 1150, São Paulo, SP 01246-903, Brazil
| | - Thais Mauad
- Laboratory of Experimental Air Pollution (LIM05), Department of Pathology, School of Medicine, University of São Paulo, FMUSP- Av. Dr. Arnaldo 455, 1°floor, room 1150, São Paulo, SP 01246-903, Brazil
| | - Mariangela Macchione
- Laboratory of Experimental Air Pollution (LIM05), Department of Pathology, School of Medicine, University of São Paulo, FMUSP- Av. Dr. Arnaldo 455, 1°floor, room 1150, São Paulo, SP 01246-903, Brazil
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Nakagawa NK, Oliveira KMG, Lockey A, Semeraro F, Aikawa P, Macchione M, Carvalho-Oliveira R, Gouvêa GB, Boaventura AP, Maiworm AI, Calderaro M, Hajjar LA, Motta EV, Souza HP, de André CDS, Silva LFF, Polastri TF, Timerman S, Carmona MJC, Böttiger BW. Effectiveness of the 40-Minute Handmade Manikin Program to Teach Hands-on Cardiopulmonary Resuscitation at School Communities. Am J Cardiol 2021; 139:126-130. [PMID: 33007308 DOI: 10.1016/j.amjcard.2020.09.032] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/26/2020] [Revised: 09/22/2020] [Accepted: 09/23/2020] [Indexed: 01/18/2023]
Abstract
Bystander training in cardiopulmonary resuscitation (CPR) is crucial to improve the victims' survival and quality of life after sudden cardiac arrest. This observational study aimed to determine the success rate of 2 different programs of CPR training for children, adolescents, and adults in school communities. We assessed the development and acquisition of the following CPR skills: checking local safety, assessing victim's responsiveness, calling for help, assessing victim's breathing, and performing chest compression (hands and straight arms placement on the chest, compression velocity, depth, and chest release) using a 40-minute program with handmade manikins or the 120-minute program using intermediate-fidelity manikins. There were 1,630 learners (mean age 16 years, 38% male) in the 40-minute program, and 347 learners (mean age 27 years, 32% male) in the 120-minute program. The lowest successful pass rate of learners that developed CPR skills was 89.4% in the 40-minute program and 84.5% in the 120-minute program. The chances of success increased with age in the same program (compression rate and depth). The success rate also increased with the more extended and intermediate-cost program at the same age (assessing victim's responsiveness, calling for help, and assessing the victim's respiration). In conclusion, a 40-minute and cheaper (low-cost handmade manikin) CPR program was adequate to develop and acquire the overall CPR skills for ≥89% at school communities, independently of gender. However, some individual CPR skills can be further improved with increasing age and using the longer and intermediate-cost program.
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Affiliation(s)
- Naomi K Nakagawa
- Physiotherapy, Communication Science and Speech Therapy and Occupational Therapy Department, LIM54, Faculdade de Medicina da Universidade de São Paulo (FMUSP), Sao Paulo, Brazil.
| | - Katia M G Oliveira
- Physiotherapy, Communication Science and Speech Therapy and Occupational Therapy Department, LIM54, Faculdade de Medicina da Universidade de São Paulo (FMUSP), Sao Paulo, Brazil
| | - Andrew Lockey
- Emergency Department, Calderdale Royal Hospital, Halifax, United Kingdom
| | | | - Priscila Aikawa
- Department of Physiological Sciences, Federal University of Rio Grande, Rio Grande do Sul, Brazil
| | | | | | - Gabriela B Gouvêa
- Physiotherapy, Communication Science and Speech Therapy and Occupational Therapy Department, LIM54, Faculdade de Medicina da Universidade de São Paulo (FMUSP), Sao Paulo, Brazil
| | | | | | - Marcelo Calderaro
- Neurology Department, Hospital das Clínicas FMUSP, Sao Paulo, Brazil
| | | | - Eduardo V Motta
- Gynecology and Obstetrics Department, FMUSP, Sao Paulo, Brazil
| | | | - Carmen D S de André
- Institute of Mathematics and Statistics, University of Sao Paulo, Sao Paulo, Brazil
| | | | - Thatiane F Polastri
- Medical Training Simulation Laboratory, Institute of Cardiology, FMUSP, Sao Paulo, Brazil
| | - Sergio Timerman
- Medical Training Simulation Laboratory, Institute of Cardiology, FMUSP, Sao Paulo, Brazil
| | | | - Bernd W Böttiger
- Department of Anaesthesiology and Intensive Care Medicine, Medical Faculty and University Hospital of Cologne, Cologne, Germany
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Dos Santos Arcas C, Lin-Wang HT, Umeda IIK, de Sousa MG, Utiyama DMO, de Padua Mansur A, Macchione M, Hirata MH, Nakagawa NK. Smoking load reduction is insufficient to downregulate miR-301b, a lung cancer promoter. Sci Rep 2020; 10:21112. [PMID: 33273694 PMCID: PMC7713348 DOI: 10.1038/s41598-020-78242-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Accepted: 11/20/2020] [Indexed: 12/23/2022] Open
Abstract
Several circulating miRNAs identified in the plasma of smokers have been implicated as promoters of nasopharyngeal and lung carcinoma. To investigate the plasma profile of miRNAs in subjects who reduces the number of smoked cigarettes and who quit after six months. We accompanied 28 individuals enrolled in a Smoking Cessation Program over 6 months. At Baseline, clinical characteristics, co-morbidities, and smoking history were similar among subjects. After 6 months, two groups were defined: who successfully quitted smoking (named "quitters", n = 18, mean age 57 years, 11 male) and who reduced the number of cigarettes smoked (20-90%) but failed to quit smoking (named "smokers", n = 10, mean age 52 years, 3 male). No significant clinical changes were observed between groups at baseline and after a 6-month period, however, quitters showed significant downregulations in seven miRNAs at baseline: miR-17 (- 2.90-fold, p = 0.029), miR-20a (- 3.80-fold, p = 0.021); miR-20b (- 4.71-fold, p = 0.027); miR-30a (- 3.95-fold, p = 0.024); miR-93 (- 3.63-fold, p = 0.022); miR-125a (- 1.70-fold, p = 0.038); and miR-195 (- 5.37-fold, p = 0.002), and after a 6-month period in 6 miRNAs: miR-17 (- 5.30-fold, p = 0.012), miR-20a (- 2.04-fold, p = 0.017), miR-20b (- 5.44-fold, p = 0.017), miR-93 (- 4.00-fold, p = 0.041), miR-101 (- 4.82-fold, p = 0.047) and miR-125b (- 3.65-fold, p = 0.025). Using time comparisons, only quitters had significant downregulation in miR-301b (- 2.29-fold, p = 0.038) after 6-month. Reductions in the number of smoked cigarettes was insufficient to change the plasma profile of miRNA after 6 months. Only quitting smoking (100% reduction) significantly downregulated miR-301b related to hypoxic conditions, promotion of cell proliferation, decreases in apoptosis, cancer development, and progression as increases in radiotherapy and chemotherapy resistance.
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Affiliation(s)
- Camila Dos Santos Arcas
- Department of Physiotherapy, LIM-54, Faculdade de Medicina da Universidade de São Paulo, Av. Dr. Arnaldo, 455 room 1150, São Paulo, São Paulo, 01246-930, Brazil
| | - Hui Tzu Lin-Wang
- Dante Pazzanese Institute of Cardiology São Paulo State, São Paulo, Brazil
| | - Iracema Ioco Kikuchi Umeda
- Department of Physiotherapy, LIM-54, Faculdade de Medicina da Universidade de São Paulo, Av. Dr. Arnaldo, 455 room 1150, São Paulo, São Paulo, 01246-930, Brazil
- Dante Pazzanese Institute of Cardiology São Paulo State, São Paulo, Brazil
| | | | | | - Antonio de Padua Mansur
- Department of Cardiopneumology, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Mariangela Macchione
- Department of Pathology, LIM05, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Mario Hiroyuki Hirata
- Department of Clinical and Toxicological Analysis, School of Pharmaceutical Sciences, Universidade de São Paulo, São Paulo, Brazil
| | - Naomi Kondo Nakagawa
- Department of Physiotherapy, LIM-54, Faculdade de Medicina da Universidade de São Paulo, Av. Dr. Arnaldo, 455 room 1150, São Paulo, São Paulo, 01246-930, Brazil.
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Nakagawa NK, Oliveira KMG, Boaventura AP, Polastri TF, Macchione M, Carvalho-Oliveira R, Calderaro M, Hajjar LA, Souza HP, Motta EV, Aikawa P, André CDS, Silva LFF, Timmerman S, Lockey A, Semeraro FF, Carmona MJC, Böttiger BW. Hands-only CPR training for children, adolescents and adults at the school community: The kids save lives Brazil experience. Resuscitation 2020. [DOI: 10.1016/j.resuscitation.2020.08.106] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Smelan J, Almeida J, Frias D, Brentani M, Macchione M. Influence of particles from atmospheric pollution in female hormonal receptors in bronchi cells.>. Genes Environ 2020. [DOI: 10.1183/13993003.congress-2020.1123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
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Sansen T, Sanchez-Fuentes D, Rathar R, Colom-Diego A, El Alaoui F, Viaud J, Macchione M, de Rossi S, Matile S, Gaudin R, Bäcker V, Carretero-Genevrier A, Picas L. Mapping Cell Membrane Organization and Dynamics Using Soft Nanoimprint Lithography. ACS Appl Mater Interfaces 2020; 12:29000-29012. [PMID: 32464046 DOI: 10.1021/acsami.0c05432] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Membrane shape is a key feature of many cellular processes, including cell differentiation, division, migration, and trafficking. The development of nanostructured surfaces allowing for the in situ manipulation of membranes in living cells is crucial to understand these processes, but this requires complicated and limited-access technologies. Here, we investigate the self-organization of cellular membranes by using a customizable and benchtop method allowing one to engineer 1D SiO2 nanopillar arrays of defined sizes and shapes on high-performance glass compatible with advanced microscopies. As a result of this original combination, we provide a mapping of the morphology-induced modulation of the cell membrane mechanics, dynamics and steady-state organization of key protein complexes implicated in cellular trafficking and signal transduction.
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Affiliation(s)
- T Sansen
- Institut de Recherche en Infectiologie de Montpellier (IRIM), CNRS UMR 9004-Université de Montpellier, 34293 Montpellier, France
| | - D Sanchez-Fuentes
- Institut d'Électronique et des Systèmes (IES), CNRS UMR 5214-Université de Montpellier, 34097 Montpellier, France
| | - R Rathar
- Institut de Recherche en Infectiologie de Montpellier (IRIM), CNRS UMR 9004-Université de Montpellier, 34293 Montpellier, France
- Institut d'Électronique et des Systèmes (IES), CNRS UMR 5214-Université de Montpellier, 34097 Montpellier, France
| | - A Colom-Diego
- Biochemistry Department and School of Chemistry and Biochemistry and Swiss National Centre for Competence in Research in Chemical Biology, University of Geneva, CH-1211 Geneva, Switzerland
| | - F El Alaoui
- Institut de Recherche en Infectiologie de Montpellier (IRIM), CNRS UMR 9004-Université de Montpellier, 34293 Montpellier, France
| | - J Viaud
- Institute of Cardiovascular and Metabolic Diseases (I2MC-UMR1048), Inserm and Université Toulouse 3, Avenue Jean Poulhès BP84225, 31432 Cedex 04 Toulouse, France
| | - M Macchione
- School of Chemistry and Biochemistry and Swiss National Centre for Competence in Research in Chemical Biology, University of Geneva, CH-1211 Geneva, Switzerland
| | - S de Rossi
- MRI Imaging Facility, UMS BioCampus Montpellier, 34000 Montpellier, France
| | - S Matile
- School of Chemistry and Biochemistry and Swiss National Centre for Competence in Research in Chemical Biology, University of Geneva, CH-1211 Geneva, Switzerland
| | - R Gaudin
- Institut de Recherche en Infectiologie de Montpellier (IRIM), CNRS UMR 9004-Université de Montpellier, 34293 Montpellier, France
| | - V Bäcker
- MRI Imaging Facility, UMS BioCampus Montpellier, 34000 Montpellier, France
| | - A Carretero-Genevrier
- Institut d'Électronique et des Systèmes (IES), CNRS UMR 5214-Université de Montpellier, 34097 Montpellier, France
| | - L Picas
- Institut de Recherche en Infectiologie de Montpellier (IRIM), CNRS UMR 9004-Université de Montpellier, 34293 Montpellier, France
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Olm MAK, Marson FAL, Athanazio RA, Nakagawa NK, Macchione M, Loges NT, Omran H, Rached SZ, Bertuzzo CS, Stelmach R, Saldiva PHN, Ribeiro JD, Jones MH, Mauad T. Severe pulmonary disease in an adult primary ciliary dyskinesia population in Brazil. Sci Rep 2019; 9:8693. [PMID: 31213628 PMCID: PMC6582273 DOI: 10.1038/s41598-019-45017-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Accepted: 05/28/2019] [Indexed: 01/19/2023] Open
Abstract
Primary Ciliary Dyskinesia (PCD) is underdiagnosed in Brazil. We enrolled patients from an adult service of Bronchiectasis over a two-year period in a cross-sectional study. The inclusion criteria were laterality disorders (LD), cough with recurrent infections and the exclusion of other causes of bronchiectasis. Patients underwent at least two of the following tests: nasal nitric oxide, ciliary movement and analysis of ciliary immunofluorescence, and genetic tests (31 PCD genes + CFTR gene). The clinical characterization included the PICADAR and bronchiectasis scores, pulmonary function, chronic Pseudomonas aeruginosa (cPA) colonization, exhaled breath condensate (EBC) and mucus rheology (MR). Forty-nine of the 500 patients were diagnosed with definite (42/49), probable (5/49), and clinical (2/49) PCD. Twenty-four patients (24/47) presented bi-allelic pathogenic variants in a total of 31 screened PCD genes. A PICADAR score > 5 was found in 37/49 patients, consanguinity in 27/49, LD in 28/49, and eight PCD sibling groups. FACED diagnosed 23/49 patients with moderate or severe bronchiectasis; FEV1 ≤ 50% in 25/49 patients, eight patients had undergone lung transplantation, four had been lobectomized and cPA+ was determined in 20/49. The EBC and MR were altered in all patients. This adult PCD population was characterized by consanguinity, severe lung impairment, genetic variability, altered EBC and MR.
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Affiliation(s)
- Mary Anne Kowal Olm
- Department of Pathology, São Paulo University Medical School, São Paulo, SP, 01246-903, Brazil.
| | - Fernando Augusto Lima Marson
- Department of Medical Genetics and Genomic Medicine, Faculty of Medical Science, University of Campinas, Campinas, SP, 13083-887, Brazil
| | - Rodrigo Abensur Athanazio
- Pulmonary Division, Heart Institute (InCor), Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, SP, 05403-000, Brazil
| | - Naomi Kondo Nakagawa
- Department of Pathology, São Paulo University Medical School, São Paulo, SP, 01246-903, Brazil
| | - Mariangela Macchione
- Department of Pathology, São Paulo University Medical School, São Paulo, SP, 01246-903, Brazil
| | - Niki Tomas Loges
- Department of Pediatrics and General Pediatrics, Muenster University Hospital, Muenster, 48149, Germany
| | - Heymut Omran
- Department of Pediatrics and General Pediatrics, Muenster University Hospital, Muenster, 48149, Germany
| | - Samia Zahi Rached
- Pulmonary Division, Heart Institute (InCor), Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, SP, 05403-000, Brazil
| | - Carmen Sílvia Bertuzzo
- Department of Medical Genetics and Genomic Medicine, Faculty of Medical Science, University of Campinas, Campinas, SP, 13083-887, Brazil
| | - Rafael Stelmach
- Pulmonary Division, Heart Institute (InCor), Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, SP, 05403-000, Brazil
| | | | - José Dirceu Ribeiro
- Department of Medical Genetics and Genomic Medicine, Faculty of Medical Science, University of Campinas, Campinas, SP, 13083-887, Brazil
- Department of Pediatrics, Faculty of Medical Science, University of Campinas, Campinas, SP, 13083-887, Brazil
| | - Marcus Herbert Jones
- Department of Pediatrics, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, RS, 90610-000, Brazil
| | - Thais Mauad
- Department of Pathology, São Paulo University Medical School, São Paulo, SP, 01246-903, Brazil
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Ito JT, Cervilha DADB, Lourenço JD, Gonçalves NG, Volpini RA, Caldini EG, Landman G, Lin CJ, Velosa APP, Teodoro WPR, Tibério IDFLC, Mauad T, Martins MDA, Macchione M, Lopes FDTQDS. Th17/Treg imbalance in COPD progression: A temporal analysis using a CS-induced model. PLoS One 2019; 14:e0209351. [PMID: 30629626 PMCID: PMC6328193 DOI: 10.1371/journal.pone.0209351] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2018] [Accepted: 12/04/2018] [Indexed: 01/10/2023] Open
Abstract
Background The imbalance between pro- and anti-inflammatory immune responses plays a pivotal role in chronic obstructive pulmonary disease (COPD) development and progression. To clarify the pathophysiological mechanisms of this disease, we performed a temporal analysis of immune response-mediated inflammatory progression in a cigarette smoke (CS)-induced mouse model with a focus on the balance between Th17 and Treg responses. Methods C57BL/6 mice were exposed to CS for 1, 3 or 6 months to induce COPD, and the control groups were maintained under filtered air conditions for the same time intervals. We then performed functional (respiratory mechanics) and structural (alveolar enlargement) analyses. We also quantified the NF-κB, TNF-α, CD4, CD8, CD20, IL-17, IL-6, FOXP3, IL-10, or TGF-β positive cells in peribronchovascular areas and assessed FOXP3 and IL-10 expression through double-label immunofluorescence. Additionally, we evaluated the gene expression of NF-κB and TNF in bronchiolar epithelial cells. Results Our CS-induced COPD model exhibited an increased proinflammatory immune response (increased expression of the NF-κB, TNF-α, CD4, CD8, CD20, IL-17, and IL-6 markers) with a concomitantly decreased anti-inflammatory immune response (FOXP3, IL-10, and TGF-β markers) compared with the control mice. These changes in the immune responses were associated with increased alveolar enlargement and impaired lung function starting on the first month and third month of CS exposure, respectively, compared with the control mice. Conclusion Our results showed that the microenvironmental stimuli produced by the release of cytokines during COPD progression lead to a Th17/Treg imbalance.
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Affiliation(s)
- Juliana Tiyaki Ito
- Department of Clinical Medicine, Laboratory of Experimental Therapeutics, School of Medicine, University of Sao Paulo, Sao Paulo, Brazil
- * E-mail:
| | | | - Juliana Dias Lourenço
- Department of Clinical Medicine, Laboratory of Experimental Therapeutics, School of Medicine, University of Sao Paulo, Sao Paulo, Brazil
| | - Natália Gomes Gonçalves
- Department of Pathology, Laboratory of Molecular Pathology, School of Medicine, University of Sao Paulo, Sao Paulo, Brazil
| | - Rildo Aparecido Volpini
- Department of Clinical Medicine, Basic Research Laboratory on Kidney Diseases, School of Medicine, University of Sao Paulo, Sao Paulo, Brazil
| | - Elia Garcia Caldini
- Department of Pathology, Laboratory of Cell Biology, School of Medicine, University of Sao Paulo, Sao Paulo, Brazil
| | - Gilles Landman
- Department of Pathology, Multi-purpose Laboratory of Molecular Pathology, Federal University of São Paulo, São Paulo, Brazil
| | - Chin Jia Lin
- Department of Pathology, Laboratory of Molecular Pathology, School of Medicine, University of Sao Paulo, Sao Paulo, Brazil
| | - Ana Paula Pereira Velosa
- Department of Clinical Medicine, Laboratory of Extracellular Matrix, School of Medicine, University of Sao Paulo, Sao Paulo, Brazil
| | - Walcy Paganelli Rosolia Teodoro
- Department of Clinical Medicine, Laboratory of Extracellular Matrix, School of Medicine, University of Sao Paulo, Sao Paulo, Brazil
| | | | - Thais Mauad
- Department of Pathology, Experimental Air Pollution Laboratory, School of Medicine, University of Sao Paulo, Sao Paulo, Brazil
| | - Milton de Arruda Martins
- Department of Clinical Medicine, Laboratory of Experimental Therapeutics, School of Medicine, University of Sao Paulo, Sao Paulo, Brazil
| | - Mariangela Macchione
- Department of Pathology, Experimental Air Pollution Laboratory, School of Medicine, University of Sao Paulo, Sao Paulo, Brazil
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de Brito JM, Mauad T, Cavalheiro GF, Yoshizaki K, de André PA, Lichtenfels AJFC, Guimarães ET, Rivero DHRF, Antonangelo L, Oliveira LB, Pedroso LRM, Macchione M, Saldiva PHN. Acute exposure to diesel and sewage biodiesel exhaust causes pulmonary and systemic inflammation in mice. Sci Total Environ 2018; 628-629:1223-1233. [PMID: 30045544 DOI: 10.1016/j.scitotenv.2018.02.019] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Revised: 01/11/2018] [Accepted: 02/02/2018] [Indexed: 06/08/2023]
Abstract
Biodiesel is a renewable energy source that reduces particle emission, but few studies have assessed its effects. To assess the effects of acute inhalation of two doses (600 and 1200 μg/m3) of diesel (DE) and biodiesel (BD) fuels on the inflammatory pulmonary and systemic profile of mice. Animals were exposed for 2 h in an inhalation chamber inside the Container Laboratory for Fuels. Heart rate, heart rate variability (HRV) and blood pressure were determined 30 min after exposure. After 24 h, we analyzed the lung inflammation using bronchoalveolar lavage fluid (BALF); neutrophil and macrophage quantification in the lung parenchyma was performed, and blood and bone marrow biomarkers as well as receptor of endothelin-A (ET-Ar), receptor of endothelin-B (ET-Br), vascular cell adhesion molecule 1 (VCAM-1), inducible nitric oxide synthase (iNOs) and isoprostane (ISO) levels in the pulmonary vessels and bronchial epithelium were evaluated. HRV increased for BD600, D600 and D1200 compared to filtered air (FA). Both fuels (DE and BD) produced alterations in red blood cells independent of the dose. BALF from the BD600 and BD1200 groups showed an increase in neutrophils compared to those of the FA group. Numeric density of the polymorphonuclear and mononuclear cells was elevated with BD600 compared to FA. In the peribronchiolar vessels, there was an increase in ET-Ar and ET-Br expression following BD600 compared to FA; and there was a reduction in the iNOs expression for BD1200 and the VCAM-1 for D1200 compared to FA. In the bronchial epithelium, there was an increase in ETAr at BD600, ET-Br at two doses (600 and 1200 μg/m3) of DE and BD, iNOs at D600 and VCAM-1 at BD1200 and D600; all groups were compared to the FA group. Acute exposure to DE and BD derived from sewage methyl esters triggered pulmonary and cardiovascular inflammatory alterations in mice.
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Affiliation(s)
- Jôse Mára de Brito
- Department of Pathology, Experimental Air Pollution Laboratory, LIM 05 - Faculdade de Medicina FMUSP, Universidade de Sao Paulo, Sao Paulo, SP, Brazil.
| | - Thais Mauad
- Department of Pathology, Experimental Air Pollution Laboratory, LIM 05 - Faculdade de Medicina FMUSP, Universidade de Sao Paulo, Sao Paulo, SP, Brazil.
| | - Guilherme Franco Cavalheiro
- Department of Pathology, Experimental Air Pollution Laboratory, LIM 05 - Faculdade de Medicina FMUSP, Universidade de Sao Paulo, Sao Paulo, SP, Brazil
| | - Kelly Yoshizaki
- Department of Pathology, Experimental Air Pollution Laboratory, LIM 05 - Faculdade de Medicina FMUSP, Universidade de Sao Paulo, Sao Paulo, SP, Brazil.
| | - Paulo Afonso de André
- Department of Pathology, Experimental Air Pollution Laboratory, LIM 05 - Faculdade de Medicina FMUSP, Universidade de Sao Paulo, Sao Paulo, SP, Brazil.
| | - Ana Julia F C Lichtenfels
- Department of Pathology, Experimental Air Pollution Laboratory, LIM 05 - Faculdade de Medicina FMUSP, Universidade de Sao Paulo, Sao Paulo, SP, Brazil.
| | - Eliane Tigre Guimarães
- Department of Pathology, Experimental Air Pollution Laboratory, LIM 05 - Faculdade de Medicina FMUSP, Universidade de Sao Paulo, Sao Paulo, SP, Brazil.
| | | | - Leila Antonangelo
- Department of Pathology, Clinical Laboratory, LIM 03 - Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP, Brazil.
| | - Luciano Basto Oliveira
- Alberto Luiz Coimbra Institute for Graduate Studies and Research in Engineering, Universidade Federal do Rio de Janeiro UFRJ, Rio de Janeiro, RJ, Brazil; Eco 100 Sustained Development LTDA, Rio de Janeiro, RJ, Brazil.
| | | | - Mariangela Macchione
- Department of Pathology, Experimental Air Pollution Laboratory, LIM 05 - Faculdade de Medicina FMUSP, Universidade de Sao Paulo, Sao Paulo, SP, Brazil.
| | - Paulo Hilário Nascimento Saldiva
- Department of Pathology, Experimental Air Pollution Laboratory, LIM 05 - Faculdade de Medicina FMUSP, Universidade de Sao Paulo, Sao Paulo, SP, Brazil.
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11
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Yoshizaki K, Brito JM, Silva LF, Lino-Dos-Santos-Franco A, Frias DP, E Silva RCR, Amato-Lourenço LF, Saldiva PHN, de Fátima Lopes Calvo Tibério I, Mauad T, Macchione M. The effects of particulate matter on inflammation of respiratory system: Differences between male and female. Sci Total Environ 2017; 586:284-295. [PMID: 28174048 DOI: 10.1016/j.scitotenv.2017.01.221] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2016] [Revised: 01/10/2017] [Accepted: 01/31/2017] [Indexed: 05/20/2023]
Abstract
Air pollution is known to exacerbate respiratory diseases and epidemiological studies have shown that women present more chronic respiratory symptoms than man exposed to traffic pollution, however, the reason why is unclear. This study evaluated the inflammatory differences in BALB/c mouse males (n=34) and females (n=111) in three phases of the estrous cycle that were exposed to ambient air (AA) or concentrated ambient particles (CAPs). Tracheal hyperreactivity to methacholine, bronchoalveolar lavage fluid (BALF) and immunohistochemical of airways and lung parenchyma were studied. Hyperreactivity increased in CAPs-exposed female mice compared with AA-exposed mice in estrus (p<0.05) and proestrus phases (p<0.05) and decreased in CAPs-exposed males compared with those exposed to AA (p<0.05). Males had increased numbers of total cells (p=0.037) and macrophages (p=0.028) compared to females. BALF levels of cyclooxygenase-2(COX-2) (p=0.000), transforming growth factor alpha (TGF-α) (p=0.001) and IL-8 receptor alpha (IL-8Rα) (p=0.014) were increased in males compared with proestrus, estrus and diestrus females, independent of exposure. Proestrus females exhibited significantly higher cadherin expression in lung parenchyma than did males (p=0.005). CAPs exposure increased matrix metalloproteinase-9 (MMP-9) (p=0.024) and isoprostane (p=0.003) expression in the airways of both, males and females. The level of substance P (SP) (p=0.001) increased in lung parenchyma in males compared with females, while IL-17 levels in airways (p=0.042) and in lung parenchyma (p=0.008) increased in females. MMP-9 levels (p=0.024) were significantly lower in the lung parenchyma of CAPs-exposed females. TGF-α (p=0.007) levels increased in the lung parenchyma of CAPs-exposed females compared to AA-exposed females. These results suggest that inflammatory markers differentially expressed in male mice were mostly linked to acute inflammation (IL-1β, IL-8Rα, COX-2), whereas in females, markers that may lead to a chronic inflammatory process such as IL-17 and remodeling (MMP-9) were increased.
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Affiliation(s)
- Kelly Yoshizaki
- Department of Pathology, Experimental Air Pollution Laboratory, LIM05 - School of Medicine, University of Sao Paulo, Sao Paulo, Sao Paulo, Brazil.
| | - Jôse Mára Brito
- Department of Pathology, Experimental Air Pollution Laboratory, LIM05 - School of Medicine, University of Sao Paulo, Sao Paulo, Sao Paulo, Brazil.
| | - Luiz Fernando Silva
- Department of Pathology, Experimental Air Pollution Laboratory, LIM05 - School of Medicine, University of Sao Paulo, Sao Paulo, Sao Paulo, Brazil.
| | - Adriana Lino-Dos-Santos-Franco
- Post Graduate Program in Biophotonics Applied to Health Sciences, University Nove de Julho (UNINOVE), Sao Paulo, Sao Paulo, Brazil.
| | - Daniela Perroni Frias
- Department of Pathology, Experimental Air Pollution Laboratory, LIM05 - School of Medicine, University of Sao Paulo, Sao Paulo, Sao Paulo, Brazil.
| | | | - Luís Fernando Amato-Lourenço
- Department of Pathology, Experimental Air Pollution Laboratory, LIM05 - School of Medicine, University of Sao Paulo, Sao Paulo, Sao Paulo, Brazil.
| | - Paulo Hilário Nascimento Saldiva
- Department of Pathology, Experimental Air Pollution Laboratory, LIM05 - School of Medicine, University of Sao Paulo, Sao Paulo, Sao Paulo, Brazil.
| | | | - Thais Mauad
- Department of Pathology, Experimental Air Pollution Laboratory, LIM05 - School of Medicine, University of Sao Paulo, Sao Paulo, Sao Paulo, Brazil.
| | - Mariangela Macchione
- Department of Pathology, Experimental Air Pollution Laboratory, LIM05 - School of Medicine, University of Sao Paulo, Sao Paulo, Sao Paulo, Brazil.
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12
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Yoshizaki K, Fuziwara CS, Brito JM, Santos TMN, Kimura ET, Correia AT, Amato-Lourenco LF, Vasconcellos P, Silva LF, Brentani MM, Mauad T, Saldiva PHN, Macchione M. The effects of urban particulate matter on the nasal epithelium by gender: An experimental study in mice. Environ Pollut 2016; 213:359-369. [PMID: 26942683 DOI: 10.1016/j.envpol.2016.02.044] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2015] [Revised: 02/11/2016] [Accepted: 02/11/2016] [Indexed: 06/05/2023]
Abstract
Nose is the first portion of the respiratory system into contact with air pollution particles, including organic compounds that could act as endocrine releasers. The objective was to identify and quantify estrogenic receptor-β (ERβ), aryl hydrocarbon receptor (AhR), the cytochrome P450 enzymes CYP1A1, 1A2, 1B1, and mucus profile in the nasal epithelium of mice. BALB/c mice male (n = 32) and female (n = 82) in proestrus, estrus and diestrus were divided into two groups: 1) exposed to ambient air; 2) concentrated ambient particles (CAPs) to achieve an accumulated dose (concentration vs. time product) of 600 μg/m(3), the time of the exposure was controlled to ensure the same concentration for all groups (5 days per week for 40-51 days). RT-PCR (Erβ-1, Erβ-2, Ahr, Cyp1a1, Cyp1a2, Cyp1b1), immunohistochemistry and morphometry (ERβ, AhR) were used to analyze. The mucus profiles were examined using acid (Alcian Blue) and neutral (periodic acid Schiff's) stains. Exposed females had significantly lower levels of Erβ-2 mRNA than exposed males (p = 0.036). Cyp1b1 mRNA in diestrus females was significantly lower in the CAP-exposed group compared with the ambient air group (p ≤ 0.05). ERβ expression in the epithelium and submucosa nucleus was lower in estrus exposed to CAPs compared with ambient air. CAPs increases AhR in the epithelium (p = 0.044) and submucosa (p = 0.001) nucleus of female when compared with male mice. Exposure to CAPs, also led to relatively increased acidic content in the mucus of males (p = 0.048), but decreased acidic content in that of females (p = 0.04). This study revealed sex-dependent responses to air pollution in the nasal epithelium that may partially explain the predisposition of females to airway respiratory diseases.
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Affiliation(s)
- K Yoshizaki
- Department of Pathology, Experimental Air Pollution Laboratory, LIM05 - School of Medicine, University of Sao Paulo, Sao Paulo, Brazil.
| | - C S Fuziwara
- Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, Brazil
| | - J M Brito
- Department of Pathology, Experimental Air Pollution Laboratory, LIM05 - School of Medicine, University of Sao Paulo, Sao Paulo, Brazil
| | - T M N Santos
- Department of Pathology, Experimental Air Pollution Laboratory, LIM05 - School of Medicine, University of Sao Paulo, Sao Paulo, Brazil
| | - E T Kimura
- Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, Brazil
| | - A T Correia
- Thoracic Surgery Division, Department of Cardiopneumology, InCor, Clinics Hospital, School of Medicine, University of Sao Paulo, Sao Paulo, Brazil
| | - L F Amato-Lourenco
- Department of Pathology, Experimental Air Pollution Laboratory, LIM05 - School of Medicine, University of Sao Paulo, Sao Paulo, Brazil
| | - P Vasconcellos
- Chemistry Institute, University of Sao Paulo; National Institutes of Science and Technology (INCT), Sao Paulo, Brazil
| | - L F Silva
- Department of Pathology, Experimental Air Pollution Laboratory, LIM05 - School of Medicine, University of Sao Paulo, Sao Paulo, Brazil
| | - M M Brentani
- Departament of Oncology, School of Medicine, University of Sao Paulo, Sao Paulo, Brazil
| | - T Mauad
- Department of Pathology, Experimental Air Pollution Laboratory, LIM05 - School of Medicine, University of Sao Paulo, Sao Paulo, Brazil
| | - P H N Saldiva
- Department of Pathology, Experimental Air Pollution Laboratory, LIM05 - School of Medicine, University of Sao Paulo, Sao Paulo, Brazil
| | - M Macchione
- Department of Pathology, Experimental Air Pollution Laboratory, LIM05 - School of Medicine, University of Sao Paulo, Sao Paulo, Brazil
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13
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Seriani R, de Souza CEC, Krempel PG, Frias DP, Matsuda M, Correia AT, Ferreira MZJ, Alencar AM, Negri EM, Saldiva PHN, Mauad T, Macchione M. Human bronchial epithelial cells exposed in vitro to diesel exhaust particles exhibit alterations in cell rheology and cytotoxicity associated with decrease in antioxidant defenses and imbalance in pro- and anti-apoptotic gene expression. Environ Sci Pollut Res Int 2016; 23:9862-9870. [PMID: 26856867 DOI: 10.1007/s11356-016-6228-x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2015] [Accepted: 02/01/2016] [Indexed: 06/05/2023]
Abstract
Diesel exhaust particles (DEPs) from diesel engines produce adverse alterations in cells of the airways by activating intracellular signaling pathways and apoptotic gene overexpression, and also by influencing metabolism and cytoskeleton changes. This study used human bronchial epithelium cells (BEAS-2B) in culture and evaluates their exposure to DEPs (15ug/mL for 1 and 2 h) in order to determine changes to cell rheology (viscoelasticity) and gene expression of the enzymes involved in oxidative stress, apoptosis, and cytotoxicity. BEAS-2B cells exposed to DEPs were found to have a significant loss in stiffness, membrane stability, and mitochondrial activity. The genes involved in apoptosis [B cell lymphoma 2 (BCL-2 and caspase-3)] presented inversely proportional expressions (p = 0.05, p = 0.01, respectively), low expression of the genes involved in antioxidant responses [SOD1 (superoxide dismutase 1); SOD2 (superoxide dismutase 2), and GPx (glutathione peroxidase) (p = 0.01)], along with an increase in cytochrome P450, family 1, subfamily A, polypeptide 1 (CYP1A1) (p = 0.01). These results suggest that alterations in cell rheology and cytotoxicity could be associated with oxidative stress and imbalance between pro- and anti-apoptotic genes.
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Affiliation(s)
- Robson Seriani
- Laboratory of Experimental Air Pollution (LIM05), Department of Pathology, School of Medicine, University of São Paulo, Av. Dr. Arnaldo 455, 1°andar, sala 1150, Cerqueira César, São Paulo, SP, CEP:01246-903, Brazil.
- FAM - Faculdades das Américas, Rua Augusta, 1508, 3°andar, São Paulo, SP, 01304-001, Brazil.
| | - Claudia Emanuele Carvalho de Souza
- Laboratory of Chronopharmacology, Department of Physiology, Institute of Bioscience, University of São Paulo, Rua do Matão - travessa 14, Cidade Universitária, 05508900, São Paulo, SP, Brazil
| | - Paloma Gava Krempel
- Laboratory for Investigations in Ophthalmology (LIM-33), University of São Paulo Medical School São Paulo, Dr. Arnaldo 455, 5°andar, Cerqueira César, São Paulo, SP, CEP:01246-903, Brazil
| | - Daniela Perroni Frias
- Laboratory of Experimental Air Pollution (LIM05), Department of Pathology, School of Medicine, University of São Paulo, Av. Dr. Arnaldo 455, 1°andar, sala 1150, Cerqueira César, São Paulo, SP, CEP:01246-903, Brazil
| | - Monique Matsuda
- Laboratory for Investigations in Ophthalmology (LIM-33), University of São Paulo Medical School São Paulo, Dr. Arnaldo 455, 5°andar, Cerqueira César, São Paulo, SP, CEP:01246-903, Brazil
| | - Aristides Tadeu Correia
- Heart Institute (InCor), Department of Cardiopulmonology, University of São Paulo Medical School, Av. Dr. Enéas de Carvalho Aguiar, 44, Cerqueira Cesar, 05403-000, Sao Paulo, SP, Brazil
| | - Márcia Zotti Justo Ferreira
- Laboratory of Microrheology and Molecular Physiology, Institute of Physics, University of São Paulo, Rua do Matão, Travessa R Número 187, Cidade Universitária, 05508-090, Sao Paulo, SP, Brazil
| | - Adriano Mesquita Alencar
- Laboratory of Microrheology and Molecular Physiology, Institute of Physics, University of São Paulo, Rua do Matão, Travessa R Número 187, Cidade Universitária, 05508-090, Sao Paulo, SP, Brazil
| | - Elnara Marcia Negri
- Laboratory of Experimental Air Pollution (LIM05), Department of Pathology, School of Medicine, University of São Paulo, Av. Dr. Arnaldo 455, 1°andar, sala 1150, Cerqueira César, São Paulo, SP, CEP:01246-903, Brazil
| | - Paulo Hilário Nascimento Saldiva
- Laboratory of Experimental Air Pollution (LIM05), Department of Pathology, School of Medicine, University of São Paulo, Av. Dr. Arnaldo 455, 1°andar, sala 1150, Cerqueira César, São Paulo, SP, CEP:01246-903, Brazil
| | - Thais Mauad
- Laboratory of Experimental Air Pollution (LIM05), Department of Pathology, School of Medicine, University of São Paulo, Av. Dr. Arnaldo 455, 1°andar, sala 1150, Cerqueira César, São Paulo, SP, CEP:01246-903, Brazil
| | - Mariangela Macchione
- Laboratory of Experimental Air Pollution (LIM05), Department of Pathology, School of Medicine, University of São Paulo, Av. Dr. Arnaldo 455, 1°andar, sala 1150, Cerqueira César, São Paulo, SP, CEP:01246-903, Brazil
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Seriani R, Junqueira MDS, de Toledo AC, Martins MA, Seckler M, Alencar AM, Negri EM, Silva LFF, Mauad T, Saldiva PHN, Macchione M. Diesel exhaust particulates affect cell signaling, mucin profiles, and apoptosis in trachea explants of Balb/C mice. Environ Toxicol 2015; 30:1297-1308. [PMID: 24777914 DOI: 10.1002/tox.22000] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2013] [Revised: 01/10/2014] [Accepted: 04/15/2014] [Indexed: 06/03/2023]
Abstract
Particulate matter from diesel exhaust (DEP) has toxic properties and can activate intracellular signaling pathways and induce metabolic changes. This study was conducted to evaluate the activation of extracellular signal-regulated kinase (ERK) and c-Jun N-terminal kinase (JNK) and to analyze the mucin profile (acid (AB(+) ), neutral (PAS(+) ), or mixed (AB/PAS(+) ) mucus) and vacuolization (V) of tracheal explants after treatment with 50 or 100 μg/mL DEP for 30 or 60 min. Western blot analyses showed small increases in ERK1/2 and JNK phosphorylation after 30 min of 100 μg/mL DEP treatment compared with the control. An increase in JNK phosphorylation was observed after 60 min of treatment with 50 μg/mL DEP compared with the control. We did not observe any change in the level of ERK1/2 phosphorylation after treatment with 50 μg/mL DEP. Other groups of tracheas were subjected to histological sectioning and stained with periodic acid-Schiff (PAS) reagent and Alcian Blue (AB). The stained tissue sections were then subjected to morphometric analysis. The results obtained were compared using ANOVA. Treatment with 50 μg/mL DEP for 30 min or 60 min showed a significant increase (p < 0.001) in the amount of acid mucus, a reduction in neutral mucus, a significant reduction in mixed mucus, and greater vacuolization. Our results suggest that compounds found in DEPs are able to activate acid mucus production and enhance vacuolization and cell signaling pathways, which can lead to airway diseases.
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Affiliation(s)
- Robson Seriani
- Laboratory of Experimental Air Pollution, Department of Pathology, School of Medicine, University of São Paulo, São Paulo, SP, Brazil
| | - Mara de Souza Junqueira
- Central Biotery Laboratory, School of Medicine, University of São Paulo, São Paulo, SP, Brazil
| | - Alessandra Choqueta de Toledo
- Experimental Therapeutics Laboratory, Department of Medicine, School of Medicine, University of São Paulo, São Paulo, SP, Brazil
| | - Milton Arruda Martins
- Experimental Therapeutics Laboratory, Department of Medicine, School of Medicine, University of São Paulo, São Paulo, SP, Brazil
| | - Marcelo Seckler
- Department of Chemistry Engineering, Polytechnic School, University of São Paulo, São Paulo, SP, Brazil
| | - Adriano Mesquita Alencar
- Department of General Physics - Institute of Physics, University of São Paulo, São Paulo, SP, Brazil
| | - Elnara Marcia Negri
- Laboratory of Experimental Air Pollution, Department of Pathology, School of Medicine, University of São Paulo, São Paulo, SP, Brazil
| | - Luiz Fernando Ferraz Silva
- Laboratory of Experimental Air Pollution, Department of Pathology, School of Medicine, University of São Paulo, São Paulo, SP, Brazil
| | - Thaís Mauad
- Laboratory of Experimental Air Pollution, Department of Pathology, School of Medicine, University of São Paulo, São Paulo, SP, Brazil
| | - Paulo Hilário Nascimento Saldiva
- Laboratory of Experimental Air Pollution, Department of Pathology, School of Medicine, University of São Paulo, São Paulo, SP, Brazil
| | - Mariangela Macchione
- Laboratory of Experimental Air Pollution, Department of Pathology, School of Medicine, University of São Paulo, São Paulo, SP, Brazil
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15
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Carvalho-Oliveira R, Pires-Neto RC, Bustillos JOV, Macchione M, Dolhnikoff M, Saldiva PHN, Garcia MLB. Chemical composition modulates the adverse effects of particles on the mucociliary epithelium. Clinics (Sao Paulo) 2015; 70:706-13. [PMID: 26598085 PMCID: PMC4602376 DOI: 10.6061/clinics/2015(10)09] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/09/2015] [Accepted: 08/03/2015] [Indexed: 11/18/2022] Open
Abstract
OBJECTIVE We compared the adverse effects of two types of real ambient particles; i.e., total suspended particles from an electrostatic precipitator of a steel mill and fine air particles from an urban ambient particulate matter of 2.5 µm, on mucociliary clearance. METHOD Mucociliary function was quantified by mucociliary transport, ciliary beating frequency and the amount of acid and neutral mucous in epithelial cells through morphometry of frog palate preparations. The palates were immersed in one of the following solutions: total suspended particles (0.1 mg/mL), particulate matter 2.5 µm 0.1 mg/mL (PM0.1) or 3.0 mg/mL (PM3.0) and amphibian Ringer's solution (control). Particle chemical compositions were determined by X-ray fluorescence and gas chromatography/mass spectrometry. RESULTS Exposure to total suspended particles and PM3.0 decreased mucociliary transport. Ciliary beating frequency was diminished by total suspended particles at all times during exposure, while particulate matter of 2.5 µm did not elicit changes. Particulate matter of 2.5 µm reduced epithelial mucous and epithelium thickness, while total suspended particles behaved similarly to the control group. Total suspended particles exhibited a predominance of Fe and no organic compounds, while the particulate matter 2.5 µm contained predominant amounts of S, Fe, Si and, to a lesser extent, Cu, Ni, V, Zn and organic compounds. CONCLUSION Our results showed that different compositions of particles induced different airway epithelial responses, emphasizing that knowledge of their individual characteristics may help to establish policies aimed at controlling air pollution.
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Affiliation(s)
- Regiani Carvalho-Oliveira
- Faculdade de Medicina da Universidade de São Paulo, Departamento de Patologia, Laboratório Experimental de Poluição Atmosférica, São Paulo, SP, Brazil
- E-mail: E-mail:
| | - Ruy Camargo Pires-Neto
- Faculdade de Medicina da Universidade de São Paulo, Departamento de Patologia, Laboratório Experimental de Poluição Atmosférica, São Paulo, SP, Brazil
| | | | - Mariangela Macchione
- Faculdade de Medicina da Universidade de São Paulo, Departamento de Patologia, Laboratório Experimental de Poluição Atmosférica, São Paulo, SP, Brazil
| | - Marisa Dolhnikoff
- Faculdade de Medicina da Universidade de São Paulo, Departamento de Patologia, Laboratório Experimental de Poluição Atmosférica, São Paulo, SP, Brazil
| | - Paulo H. Nascimento Saldiva
- Faculdade de Medicina da Universidade de São Paulo, Departamento de Patologia, Laboratório Experimental de Poluição Atmosférica, São Paulo, SP, Brazil
| | - Maria Lúcia Bueno Garcia
- Faculdade de Medicina da Universidade de São Paulo, Departamento de Patologia, Laboratório Experimental de Poluição Atmosférica, São Paulo, SP, Brazil
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16
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Oliveira VR, Mancin VGL, Pinto EF, Soares RM, Azevedo SMFO, Macchione M, Carvalho AR, Zin WA. Repeated intranasal exposure to microcystin-LR affects lungs but not nasal epithelium in mice. Toxicon 2015. [PMID: 26220798 DOI: 10.1016/j.toxicon.2015.07.331] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Microcystin-LR (MC-LR) is a harmful cyanotoxin able to induce adverse outcomes in the respiratory system. We aimed to examine the lungs and nasal epithelium of mice following a sub-chronic exposure to MC-LR. Swiss mice were intranasally instilled with 10 μL of distilled water (CTRL, n = 10) or 6.7 ng/kg of MC-LR diluted in 10 μL of distilled water (TOX, n = 8) during 30 consecutive days. Respiratory mechanics was measured in vivo and histology measurements (morphology and inflammation) were assessed in lungs and nasal epithelium samples 24 h after the last intranasal instillation. Despite the lack of changes in the nasal epithelium, TOX mice displayed an increased amount of PMN cells in the lungs (× 10(-3)/μm(2)), higher lung static elastance (cmH2O/mL), resistive and viscoelastic/inhomogeneous pressures (cmH2O) (7.87 ± 3.78, 33.96 ± 2.64, 1.03 ± 0.12, 1.01 ± 0.08, respectively) than CTRL (5.37 ± 4.02, 26.65 ± 1.24, 0.78 ± 0.06, 0.72 ± 0.05, respectively). Overall, our findings suggest that the nasal epithelium appears more resistant than lungs in this model of MC-LR intoxication.
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Affiliation(s)
- Vinícius R Oliveira
- Laboratory of Respiration Physiology, Carlos Chagas Filho Institute of Biophysics, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Viviane G L Mancin
- Laboratory of Respiration Physiology, Carlos Chagas Filho Institute of Biophysics, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Eliete F Pinto
- Laboratory of Respiration Physiology, Carlos Chagas Filho Institute of Biophysics, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Raquel M Soares
- Laboratory of Ecophysiology and Toxicology of Cyanobacteria, Carlos Chagas Filho Institute of Biophysics, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Sandra M F O Azevedo
- Laboratory of Ecophysiology and Toxicology of Cyanobacteria, Carlos Chagas Filho Institute of Biophysics, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Mariangela Macchione
- Laboratory of Experimental Atmospheric Pollution, Department of Pathology, School of Medicine, Universidade de São Paulo, São Paulo, Brazil
| | - Alysson R Carvalho
- Laboratory of Respiration Physiology, Carlos Chagas Filho Institute of Biophysics, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Walter A Zin
- Laboratory of Respiration Physiology, Carlos Chagas Filho Institute of Biophysics, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil.
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Yoshizaki K, Brito JM, Moriya HT, Toledo AC, Ferzilan S, Ligeiro de Oliveira AP, Machado ID, Farsky SHP, Silva LFF, Martins MA, Saldiva PHN, Mauad T, Macchione M. Chronic exposure of diesel exhaust particles induces alveolar enlargement in mice. Respir Res 2015; 16:18. [PMID: 25848680 PMCID: PMC4345004 DOI: 10.1186/s12931-015-0172-z] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2014] [Accepted: 01/17/2015] [Indexed: 12/21/2022] Open
Abstract
Background Diesel exhaust particles (DEPs) are deposited into the respiratory tract and are thought to be a risk factor for the development of diseases of the respiratory system. In healthy individuals, the timing and mechanisms of respiratory tract injuries caused by chronic exposure to air pollution remain to be clarified. Methods We evaluated the effects of chronic exposure to DEP at doses below those found in a typical bus corridor in Sao Paulo (150 μg/m3). Male BALB/c mice were divided into mice receiving a nasal instillation: saline (saline; n = 30) and 30 μg/10 μL of DEP (DEP; n = 30). Nasal instillations were performed five days a week, over a period of 90 days. Bronchoalveolar lavage (BAL) was performed, and the concentrations of interleukin (IL)-4, IL-10, IL-13 and interferon-gamma (INF-γ) were determined by ELISA-immunoassay. Assessment of respiratory mechanics was performed. The gene expression of Muc5ac in lung was evaluated by RT-PCR. The presence of IL-13, MAC2+ macrophages, CD3+, CD4+, CD8+ T cells and CD20+ B cells in tissues was analysed by immunohistochemistry. Bronchial thickness and the collagen/elastic fibers density were evaluated by morphometry. We measured the mean linear intercept (Lm), a measure of alveolar distension, and the mean airspace diameter (D0) and statistical distribution (D2). Results DEP decreased IFN-γ levels in BAL (p = 0.03), but did not significantly alter IL-4, IL-10 and IL-13 levels. MAC2+ macrophage, CD4+ T cell and CD20+ B cell numbers were not altered; however, numbers of CD3+ T cells (p ≤ 0.001) and CD8+ T cells (p ≤ 0.001) increased in the parenchyma. Although IL-13 (p = 0.008) expression decreased in the bronchiolar epithelium, Muc5ac gene expression was not altered in the lung of DEP-exposed animals. Although respiratory mechanics, elastic and collagen density were not modified, the mean linear intercept (Lm) was increased in the DEP-exposed animals (p ≤ 0.001), and the index D2 was statistically different (p = 0.038) from the control animals. Conclusion Our data suggest that nasal instillation of low doses of DEP over a period of 90 days results in alveolar enlargement in the pulmonary parenchyma of healthy mice. Electronic supplementary material The online version of this article (doi:10.1186/s12931-015-0172-z) contains supplementary material, which is available to authorized users.
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Ramos EM, Ramos D, Moreira GL, Macchione M, Guimaraes ET, Rodrigues FMM, de Souza AAL, Saldiva PH, Jardim JR. Viscoelastic Properties of Bronchial Mucus After Respiratory Physiotherapy in Subjects With Bronchiectasis. Respir Care 2015; 60:724-30. [DOI: 10.4187/respcare.02429] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Seriani R, Abessa DMS, Moreira LB, Cabrera JPG, Sanches JQ, Silva CLS, Amorim FA, Rivero DHRF, Silva FL, Fitorra LS, Carvalho-Oliveira R, Macchione M, Ranzani-Paiva MJT. In vitro mucus transportability, cytogenotoxicity, and hematological changes as non-destructive physiological biomarkers in fish chronically exposed to metals. Ecotoxicol Environ Saf 2015; 112:162-168. [PMID: 25463867 DOI: 10.1016/j.ecoenv.2014.11.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2014] [Revised: 10/27/2014] [Accepted: 11/07/2014] [Indexed: 06/04/2023]
Abstract
The biomonitoring of fish using biomarkers represents a useful tool for the assessment of aquatic pollution. This study evaluated the sublethal toxic effects of aquatic pollution on fish collected from a site contaminated by metals. Water and fish (Oreochromis niloticus) samples were collected from a pond in the Parque Ecológico do Tietê (PET) that lies along the Tietê River (São Paulo, Brazil), and from a control site (an experimental fish farm). The metal content of the water was evaluated, and fish were used to examine the properties of gill mucus and blood. The PET fish were evaluated for alterations in the in vitro transportability of mucus and changes in blood properties (e.g., cell volume, hemoglobin concentration, red blood cells, and white blood cell count). The results of the water analyzes indicated metal levels above the legal standards for Fe (0.71 mg/L), Ni (0.06 mg/L), Mn (0.11 mg/L), and Pb (0.48 mg/L). Compared to the controls, the hematologic parameter analyzes of PET fish revealed significantly higher numbers of erythrocytes (RBC), leukocytes (WBC), lymphocytes, erythroblasts, and Mean Corpuscular Volume (MCV); however, the hemoglobin content and Mean Corpuscular Hemoglobin Concentration (MCHC) values were significantly lower. The frequencies of nuclear abnormalities and micronuclei were significantly higher and the mucociliary transport was significantly lower in PET fish than in the controls. These results suggest that fish from the contaminated site exhibit a series of physiological responses, which probably indicate health disturbances. Furthermore, the results suggest that blood and mucus are promising, non-destructive targets for use in the monitoring of pollution.
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Affiliation(s)
- Robson Seriani
- Laboratório de Investigação Médica - LIM 05-Faculdade de Medicina da Universidade de São Paulo, São Paulo, SP, Brasil; Núcleo de Estudos e Pesquisa em Ecotoxicologia Aquática - Universidade Estadual Paulista - UNESP - Campus do Litoral Paulista, São Vicente, SP, Brasil; Pós Graduação em Educação Ambiental da Universidade de Guarulhos UnG - Guarulhos, São Paulo, Brasil.
| | - Denis M S Abessa
- Núcleo de Estudos e Pesquisa em Ecotoxicologia Aquática - Universidade Estadual Paulista - UNESP - Campus do Litoral Paulista, São Vicente, SP, Brasil
| | - Lucas B Moreira
- Núcleo de Estudos e Pesquisa em Ecotoxicologia Aquática - Universidade Estadual Paulista - UNESP - Campus do Litoral Paulista, São Vicente, SP, Brasil
| | - Joana P G Cabrera
- Pós Graduação em Educação Ambiental da Universidade de Guarulhos UnG - Guarulhos, São Paulo, Brasil
| | - Juliana Q Sanches
- Graduação em Ciênicas Biológicas da Universidade Paulista - UNIP, Campus Vergueiro/Paraíso, São Paulo, SP, Brasil
| | - Carolina L S Silva
- Graduação em Ciênicas Biológicas da Universidade Paulista - UNIP, Campus Vergueiro/Paraíso, São Paulo, SP, Brasil
| | - Francisca A Amorim
- Graduação em Ciênicas Biológicas da Universidade Paulista - UNIP, Campus Vergueiro/Paraíso, São Paulo, SP, Brasil
| | - Dolores H R F Rivero
- Laboratório de Investigação Médica - LIM 05-Faculdade de Medicina da Universidade de São Paulo, São Paulo, SP, Brasil
| | - Flavia L Silva
- Pós Graduação em Nanociências e Materiais Avançados, Universidade Federal do ABC-UFABC-Santo André, São Paulo, Brasil
| | - Lilian S Fitorra
- Centro de Recepção de Animais Silvestre "Orlando Villas Boas", São Paulo, SP, Brasil
| | - Regiani Carvalho-Oliveira
- Laboratório de Investigação Médica - LIM 05-Faculdade de Medicina da Universidade de São Paulo, São Paulo, SP, Brasil
| | - Mariangela Macchione
- Laboratório de Investigação Médica - LIM 05-Faculdade de Medicina da Universidade de São Paulo, São Paulo, SP, Brasil
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Ito JT, Ramos D, Lima FF, Rodrigues FMM, Gomes PR, Moreira GL, Macchione M, Toledo AC, Ramos EMC. Nasal Mucociliary Clearance in Subjects With COPD After Smoking Cessation. Respir Care 2014; 60:399-405. [PMID: 25389352 DOI: 10.4187/respcare.03266] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
BACKGROUND Exposure to cigarette smoke causes significant impairment in mucociliary clearance (MCC), which predisposes patients to secretion retention and recurrent airway infections that play a role in exacerbations of COPD. To determine whether smoking cessation may influence MCC and frequency of exacerbations, the following groups were evaluated: ex-smokers with COPD, smokers with COPD, current smokers with normal lung function, and nonsmokers with normal lung function. METHODS Ninety-three subjects were divided into 4 groups: ex-smokers with COPD (n = 23, 62.4 ± 8.0 y, 13 males), smokers with COPD (n = 17, 58.2 ± 8.0 y, 6 males), current smokers (n = 27, 61.5 ± 6.4 y, 17 males), and nonsmokers (n = 26, 60.8 ± 11.3 y, 7 males). MCC was evaluated using the saccharin transit time (STT) test, and the frequency of exacerbations in the last year was assessed by questionnaire. The Kruskal-Wallis test followed by Dunn's test were used to compare STT among groups, and the Goodman test was used to compare the frequency of exacerbations. RESULTS STT of smokers with COPD (16.5 [11-28] min; median [interquartile range 25-75%]) and current smokers (15.9 [10-27] min) was longer compared with ex-smokers with COPD (9.7 [6-12] min) and nonsmokers (8 [6-16] min) (P < .001). There was no difference in STT values between smokers with COPD and current smokers, and these values in ex-smokers with COPD were similar to the control group (P > .05). The frequency of exacerbations was lower in ex-smokers with COPD compared with smokers with COPD. CONCLUSIONS One year after smoking cessation, subjects with COPD had improved mucociliary clearance.
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Affiliation(s)
- Juliana T Ito
- Department of Physiotherapy, Universidade Estadual Paulista (UNESP), Presidente Prudente
| | - Dionei Ramos
- Department of Physiotherapy, Universidade Estadual Paulista (UNESP), Presidente Prudente
| | - Fabiano F Lima
- Department of Physiotherapy, Universidade Estadual Paulista (UNESP), Presidente Prudente
| | - Fernanda M M Rodrigues
- Department of Physiotherapy, Universidade Estadual Paulista (UNESP), Presidente Prudente
| | - Paulo R Gomes
- Clinic of Medical Specialties, a partner of UNESP, Clinical Center, Presidente Prudente
| | - Graciane L Moreira
- Department of Medicine in Pneumology, Federal University of São Paulo/Paulista School of Medicine, São Paulo
| | - Mariangela Macchione
- Department of Pathology, University of São Paulo School of Medicine, São Paulo, São Paulo, Brazil
| | - Alessandra C Toledo
- Department of Pathology, University of São Paulo School of Medicine, São Paulo, São Paulo, Brazil
| | - Ercy M C Ramos
- Department of Physiotherapy, Universidade Estadual Paulista (UNESP), Presidente Prudente
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Rodrigues FMM, Ramos D, Xavier RF, Ito JT, Souza APD, Fernandes RA, Cecchini R, Rossi e Silva RC, Macchione M, Toledo-Arruda ACD, Guarnier FA, Ramos EMC. Nasal and systemic inflammatory profile after short term smoking cessation. Respir Med 2014; 108:999-1006. [PMID: 24863424 DOI: 10.1016/j.rmed.2014.04.020] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2013] [Revised: 04/23/2014] [Accepted: 04/26/2014] [Indexed: 01/24/2023]
Abstract
INTRODUCTION Smoking cessation promotes health benefits and, despite cigarette smoking be an important pro inflammatory stimulus, there are few studies concerning the nasal and systemic inflammation; as well as the mucociliary clearance behavior in smokers after short period of smoking cessation. AIM To evaluate the nasal and systemic inflammatory markers and mucociliary clearance behavior after 30 days of cigarette smoking abstinence. METHODS Twenty-five smokers were included and divided into two groups: abstinent smokers (n = 14) and current smokers (n = 11). Tumor necrosis factor alpha (TNF-α), interleukin (IL)-6, IL-8 and IL-10 were measured on nasal lavage and blood serum samples by ELISA at baseline and after 30 days. The mucociliary clearance, exhaled carbon monoxide (exCO) and carboxyhemoglobin (HbCO) were also measured at the same moments. RESULTS There was a decrease of TNF-α level only in blood serum at 30 days of abstinence compared to current smokers. The mucociliary clearance improved and there was a reduction in exCO and HbCO (p < 0.05 for all) after 30 days of smoking cessation. CONCLUSION The short term smoking abstinence decreased systemic inflammation and improved nasal mucociliary clearance, despite not having changed the nasal inflammation.
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Affiliation(s)
| | - Dionei Ramos
- Department of Physiotherapy, São Paulo State University (UNESP), Presidente Prudente, Brazil
| | | | - Juliana Tiyaki Ito
- Department of Physiotherapy, São Paulo State University (UNESP), Presidente Prudente, Brazil
| | - Alcirene Policarpo de Souza
- Department of Physics, Chemistry and Biology, São Paulo State University (UNESP), Presidente Prudente, Brazil
| | - Rômulo Araújo Fernandes
- Department of Physical Education, São Paulo State University (UNESP), Presidente Prudente, Brazil
| | - Rubens Cecchini
- Department of Pathological Sciences, State University of Londrina (UEL), Londrina, Brazil
| | | | | | - Alessandra Choqueta de Toledo-Arruda
- Department of Physiotherapy, São Paulo State University (UNESP), Presidente Prudente, Brazil; Department of Clinical Medicine (LIM-20), University of São Paulo (USP), Brazil
| | | | - Ercy Mara Cipulo Ramos
- Department of Physiotherapy, São Paulo State University (UNESP), Presidente Prudente, Brazil.
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Lemos M, Mohallen SV, Macchione M, Dolhnikoff M, Assunção JV, Godleski JJ, Saldiva PHN. Chronic exposure to urban air pollution induces structural alterations in murine pulmonary and coronary arteries. Inhal Toxicol 2014; 18:247-53. [PMID: 22397321 DOI: 10.1080/08958370500444247] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Epidemiological studies have shown that air pollution increases cardiovascular morbidity and mortality. Objective markers of cardiovascular risk have also been associated with increases in ambient pollution. This study was designed to assess whether prolonged exposure to ambient levels of air pollution may induce structural alterations of pulmonary and cardiac vessels. Mice were chronically exposed to ambient levels of air pollution in downtown São Paulo, Brazil. The animals were maintained in exposure chambers, 24 h/day, 7 days/wk, during 4 mo. One group was exposed to ambient air, and the control group was exposed to filtered air. Morphometric measurements of the ratio between the lumen and wall (L/W) areas were performed on transverse sections of renal, pulmonary, and coronary arteries. As expected, lumen/wall ratios increased with arterial caliber (p < .001). A significant decrease of L/W with exposure to air pollution was detected in pulmonary (p = .03) and coronary (p = .021) arteries, whereas no effects of air pollution were observed in renal vessels. Our results indicate that animals chronically exposed to ambient air pollution develop a significant thickening of the arterial wall in the coronary and pulmonary circulation.
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Affiliation(s)
- Miriam Lemos
- Department of Pathology, School of Medicine, University of São Paulo, Brazil
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23
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Lima TMD, Kazama CM, Koczulla AR, Hiemstra PS, Macchione M, Fernandes ALG, Santos UDP, Bueno-Garcia ML, Zanetta DM, André CDSD, Saldiva PHN, Nakagawa NK. pH in exhaled breath condensate and nasal lavage as a biomarker of air pollution-related inflammation in street traffic-controllers and office-workers. Clinics (Sao Paulo) 2013; 68:1488-94. [PMID: 24473505 PMCID: PMC3840367 DOI: 10.6061/clinics/2013(12)03] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/28/2013] [Revised: 05/14/2013] [Accepted: 06/08/2013] [Indexed: 11/18/2022] Open
Abstract
OBJECTIVE To utilize low-cost and simple methods to assess airway and lung inflammation biomarkers related to air pollution. METHODS A total of 87 male, non-smoking, healthy subjects working as street traffic-controllers or office-workers were examined to determine carbon monoxide in exhaled breath and to measure the pH in nasal lavage fluid and exhaled breath condensate. Air pollution exposure was measured by particulate matter concentration, and data were obtained from fixed monitoring stations (8-h work intervals per day, during the 5 consecutive days prior to the study). RESULTS Exhaled carbon monoxide was two-fold greater in traffic-controllers than in office-workers. The mean pH values were 8.12 in exhaled breath condensate and 7.99 in nasal lavage fluid in office-workers; these values were lower in traffic-controllers (7.80 and 7.30, respectively). Both groups presented similar cytokines concentrations in both substrates, however, IL-1β and IL-8 were elevated in nasal lavage fluid compared with exhaled breath condensate. The particulate matter concentration was greater at the workplace of traffic-controllers compared with that of office-workers. CONCLUSION The pH values of nasal lavage fluid and exhaled breath condensate are important, robust, easy to measure and reproducible biomarkers that can be used to monitor occupational exposure to air pollution. Additionally, traffic-controllers are at an increased risk of airway and lung inflammation during their occupational activities compared with office-workers.
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Affiliation(s)
| | - Cristiane Mayumi Kazama
- Department of Pathology, Faculdade de Medicina, Universidade de São Paulo, São PauloSP, Brazil
| | | | - Pieter S Hiemstra
- Department of Pulmonology, Leiden University Medical Center, Leiden, The Netherlands
| | - Mariangela Macchione
- Department of Pathology, Faculdade de Medicina, Universidade de São Paulo, São PauloSP, Brazil
| | - Ana Luisa Godoy Fernandes
- Department of Pneumology, School of Medicine, Universidade Federal de São Paulo, São PauloSP, Brazil
| | - Ubiratan de Paula Santos
- Pneumology Division, Instituto do Coração, Faculdade de Medicina, Universidade de São Paulo, São PauloSP, Brazil
| | - Maria Lucia Bueno-Garcia
- Department of Internal Medicine, Faculdade de Medicina, Universidade de São Paulo, São PauloSP, Brazil
| | - Dirce Maria Zanetta
- Department of Epidemiology, Public Health Faculty, Universidade de São Paulo, São PauloSP, Brazil
| | | | | | - Naomi Kondo Nakagawa
- Department of Pathology, Faculdade de Medicina, Universidade de São Paulo, São PauloSP, Brazil
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Xavier RF, Ramos D, Ito JT, Rodrigues FMM, Bertolini GN, Macchione M, de Toledo AC, Ramos EMC. Effects of cigarette smoking intensity on the mucociliary clearance of active smokers. ACTA ACUST UNITED AC 2013; 86:479-85. [PMID: 23615315 DOI: 10.1159/000348398] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2012] [Accepted: 01/24/2013] [Indexed: 11/19/2022]
Abstract
BACKGROUND Smoking impairs mucociliary clearance and increases respiratory infection frequency and severity in subjects with and without smoking-related chronic lung diseases. OBJECTIVE This study evaluated the effects of smoking intensity on mucociliary clearance in active smokers. METHODS Seventy-five active smokers were grouped into light (1-10 cigarettes/day; n = 14), moderate (11-20 cigarettes/day; n = 34) and heavy smokers (≥21 cigarettes/day; n = 27) before starting a smoking cessation programme. Smoking behaviour, nicotine dependence, pulmonary function, carbon monoxide in exhaled air (exCO), carboxyhaemoglobin (COHb) and mucociliary clearance measured by the saccharin transit time (STT) test were all evaluated. An age-matched non-smoker group (n = 24) was assessed using the same tests. RESULTS Moderate (49 ± 7 years) and heavy smokers (46 ± 8 years) had higher STT (p = 0.0001), exCO (p < 0.0001) and COHb (p < 0.0001) levels compared with light smokers (51 ± 15 years) and non-smokers (50 ± 11 years). A positive correlation was observed between STT and exCO (r = 0.4; p < 0.0001), STT and cigarettes/day (r = 0.3, p = 0.02) and exCO and cigarettes/day (r = 0.3, p < 0.01). CONCLUSION Smoking impairs mucociliary clearance and is associated with cigarette smoking intensity.
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Cappelli MI, Macchione M, Pulini S, Aquilina T, Cancanelli G. [Working overseas and cardiovascular diseases: application of a screening method on Oil&Gas employees]. G Ital Med Lav Ergon 2012; 34:643-645. [PMID: 23405740] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Working overseas is a reality for decades in the Oil&Gas Industry and many noxae impact on the cardiovascular system. In fitness to work evaluation the physician should consider besides the conventional risk factors, the presence of cardiovascular diseases, and prevent their evolution. A cardiovascular screening and follow up after 2 years was carried out on 42 Oil&Gas employees, over 45 of age, during medical fitness to work. The main tests were ECG, exercise tolerance test (ETT) and echocardiocolordoppler, completed with other instrumental tests. Cardiovascular diseases causing unfitness to working overseas occurred in 7%, blood hypertension in 23%. The screening permitted to diagnose and correct acute cardiovascular diseases, that caused unfitness to work, and disease that can get worse related to occupational risk. Moreover it was fundamental for evaluation of fitness and timing of health surveillance.
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Affiliation(s)
- M I Cappelli
- Centro Medicina del Lavoro ENI, Eniservizi S.p.A, viale de Gasperi 5/b, 20097 San Donato Milanese, Milano, Italy.
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Olm MAK, Kögler JE, Macchione M, Shoemark A, Saldiva PHN, Rodrigues JC. Primary ciliary dyskinesia: evaluation using cilia beat frequency assessment via spectral analysis of digital microscopy images. J Appl Physiol (1985) 2011; 111:295-302. [PMID: 21551013 DOI: 10.1152/japplphysiol.00629.2010] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
Ciliary beat frequency (CBF) measurements provide valuable information for diagnosing of primary ciliary dyskinesia (PCD). We developed a system for measuring CBF, used it in association with electron microscopy to diagnose PCD, and then analyzed characteristics of PCD patients. The CBF measurement system was based on power spectra measured through digital imaging. Twenty-four patients suspected of having PCD (age 1-19 yr) were selected from a group of 75 children and adolescents with pneumopathies of unknown causes. Ten healthy, nonsmoking volunteers (age ≥ 17 yr) served as a control group. Nasal brush samples were collected, and CBF and electron microscopy were performed. PCD was diagnosed in 12 patients: 5 had radial spoke defects, 3 showed absent central microtubule pairs with transposition, 2 had outer dynein arm defects, 1 had a shortened outer dynein arm, and 1 had a normal ultrastructure. Previous studies have reported that the most common cilia defects are in the dynein arm. As expected, the mean CBF was higher in the control group (P < 0.001) and patients with normal ultrastructure (P < 0.002), than in those diagnosed with cilia ultrastructural defects (i.e., PCD patients). An obstructive ventilatory pattern was observed in 70% of the PCD patients who underwent pulmonary function tests. All PCD patients presented bronchial wall thickening on chest computed tomography scans. The protocol and diagnostic techniques employed allowed us to diagnose PCD in 16% of patients in this study.
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Affiliation(s)
- Mary A K Olm
- Pediatric Pneumology Unit, Child Institute, Faculty of Medicine, University of São Paulo, São Paulo, SP, Brazil.
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27
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Yoshizaki K, Brito JM, Toledo AC, Nakagawa NK, Piccin VS, Junqueira MS, Negri EM, Carvalho ALN, Oliveira APLD, Lima WTD, Saldiva PHN, Mauad T, Macchione M. Subchronic effects of nasally instilled diesel exhaust particulates on the nasal and airway epithelia in mice. Inhal Toxicol 2011; 22:610-7. [PMID: 20429853 DOI: 10.3109/08958371003621633] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Diesel exhaust is the major source of ultrafine particles released during traffic-related pollution. Subjects with chronic respiratory diseases are at greater risk for exacerbations during exposure to air pollution. This study evaluated the effects of subchronic exposure to a low-dose of diesel exhaust particles (DEP). Sixty male BALB/c mice were divided into two groups: (a) Saline: nasal instillation of saline (n = 30); and (b) DEP: nasal instillation of 30 microg of DEP/10 microl of saline (n = 30). Nasal instillations were performed 5 days a week, over 30 and 60 days. Animals were anesthetized with pentobarbital sodium (50 mg/kg intraperitoneal [i.p.]) and sacrificed by exsanguination. Bronchoalveolar lavage (BAL) fluid was performed to evaluate the inflammatory cell count and the concentrations of the interleukin (IL)-4, IL-10, and IL-13 by enzyme-linked immunosorbent assay (ELISA). The gene expression of oligomeric mucus/gel-forming (Muc5ac) was evaluated by real-time polymerase chain reaction (PCR). Histological analysis in the nasal septum and bronchioles was used to evaluate the bronchial and nasal epithelium thickness as well as the acidic and neutral nasal mucus content. The saline group (30 and 60 days) did not show any changes in any of the parameters. However, the instillation of DEP over 60 days increased the expression of Muc5ac in the lungs and the acid mucus content in the nose compared with the 30-day treatment, and it increased the total leukocytes in the BAL and the nasal epithelium thickness compared with saline for 60 days. Cytokines concentrations in the BAL were detectable, with no differences among the groups. Our data suggest that a low-dose of DEP over 60 days induces respiratory tract inflammation.
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Affiliation(s)
- K Yoshizaki
- Laboratory of Experimental Atmospheric Pollution (LPAE), University of São Paulo, Avenida Dr. Arnaldo 455, São Paulo, Brazil
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28
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Teixeira MA, Chaguri LCAG, Carissimi AS, Souza NL, Mori CMC, Saldiva PHN, Lemos M, Macchione M, Guimarães ET, King M, Merusse JLB. Effects of an individually ventilated cage system on the airway integrity of rats (Rattus norvegicus) in a laboratory in Brazil. Lab Anim 2006; 40:419-31. [PMID: 17018213 DOI: 10.1258/002367706778476398] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The ventilation method used in the management of laboratory rats is important in maintaining their health. Rats kept under general diluting ventilation (GDV) are exposed to high levels of pollutants present in the environment (dust, airborne bacteria, etc.) or those pollutants produced by animal metabolism and excretion inside the boxes (e.g. ammonia and carbon dioxide). These pollutants may contribute to respiratory pathologies. An alternative experimental ventilation system for laboratory animal housing using intracage ventilation technology (individually ventilated cage system, IVC) was developed. In this system, ammonia levels decreased and rats exhibited better reproductive performance and a lower incidence of pneumonia than rats maintained under GDV. Using two different levels of air speed (0.03-0.26 m/s: IVC(1); 0.27-0.80 m/s: IVC(2)), the effects of IVC were compared with GDV (control) in Wistar rats in terms of respiratory mucus properties, on the nasal epithelium (as measured by quantitative morphometry) and on the lungs (as determined by the cellular composition obtained by bronchoalveolar lavage). Mucus of the respiratory system was evaluated using the following techniques: rheology (viscoelasticity) by microrheometer, in vitro mucociliary transportability (frog palate) and contact angle (an indicator of adhesivity). Also, membrane transepithelial potential difference was measured as a biomarker of airway integrity. After bedding was changed, ammonia concentrations inside the cages on day 3 were significantly higher for GDV than for IVC(1) and IVC(2). The potential-difference values for IVC(1), IVC(2) and GDV in the epiglottis and in the trachea also showed differences. Although some significant differences were observed across the three groups in counts of some cell types, the intragroup results were highly variable among individuals and inconsistent between sexes. No significant differences in the other parameters were found across groups. These results establish that rats maintained under GDV in relatively unregulated conditions are exposed to factors that can lead to deleterious effects on the ciliated epithelium of the airways, and that these effects can be prevented by the use of IVC.
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Affiliation(s)
- M A Teixeira
- Centro de Ciências Biológicas e da Saúde, Universidade Federal de Mato Grosso do Sul, Campo Grande, MS, Brazil.
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Camargo Pires-Neto R, Júlia Lichtenfels A, Regina Soares S, Macchione M, Hilário Nascimento Saldiva P, Dolhnikoff M. Effects of São Paulo air pollution on the upper airways of mice. Environ Res 2006; 101:356-61. [PMID: 16460726 DOI: 10.1016/j.envres.2005.12.018] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2005] [Revised: 12/10/2005] [Accepted: 12/19/2005] [Indexed: 05/06/2023]
Abstract
The nose is the first region of the respiratory tract to come in contact with airborne pollutants. Previous studies have shown that the nasal mucosa can be altered in response to air pollution. In this study, we quantified neutral and acidic mucus in three different levels of the nasal cavity of mice exposed to ambient levels of air pollution in the city of São Paulo, Brazil. Two groups of 6-day-old male Swiss mice were placed in two exposure chambers. Mice were maintained in the chambers 24 h/day, 7 days/week for 5 months. The first chamber contained an air filter device (clean chamber; n=20), whereas the second one received ambient air pollution (polluted chamber; n=20). We measured the concentration of PM(2.5), nitrogen dioxide (NO2), and black carbon inside both chambers. The nasal cavity was transversely sectioned at three specific anatomic locations (proximal, medial, and distal levels) and submitted to quantitative analysis of the amounts of neutral and acidic mucosubstances. We observed a 37.85% decrease in NO2, 54.77% decrease in PM(2.5), and 100% decrease in black carbon concentration in the clean chamber compared to the polluted chamber. Significant differences between polluted and clean chambers were observed in the epithelium lining the septum of proximal and medial levels of the nasal mucosa, with an increase in the percentage of acidic mucus in the polluted chamber (P=0.037, proximal level; P=0.023, medial level). We conclude that prolonged exposure to low levels of ambient air pollution from an early age shows evidence of causing secretory changes in the nasal cavity of mice, with increased production of acidic mucosubstances.
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Affiliation(s)
- Ruy Camargo Pires-Neto
- Laboratory of Experimental Air Pollution, Department of Pathology, School of Medicine, University of São Paulo, Av. Dr. Arnaldo 455, São Paulo, SP CEP01246-903, Brazil.
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Lankford SM, Macchione M, Crews AL, McKane SA, Akley NJ, Martin LD. Modeling the airway epithelium in allergic asthma: interleukin-13- induced effects in differentiated murine tracheal epithelial cells. In Vitro Cell Dev Biol Anim 2005; 41:217-24. [PMID: 16223336 DOI: 10.1290/0502012.1] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Mucous cells of the airway epithelium play a crucial role in the pathogenesis of human inflammatory airway diseases. Therefore, it is of importance to complement in vivo studies that use murine models of allergic asthma with in vitro mechanistic studies that use murine airway epithelial cells, including mucus-containing cells. In this study, we report the development and characterization of an in vitro culture system for primary murine tracheal epithelial (MTE) cells comprising ciliated cells and a substantial number of mucous cells. The increase in mucous cell number over that observed in the native murine airway, or in previously described murine cultures, creates a culture intermediate between the in vivo murine airway epithelium and in vitro cultures of human airway epithelial cells. To establish the usefulness of this culture system for the study of epithelial effects during inflammatory airway diseases, the cells were exposed to interleukin (IL)-13, a central inflammatory mediator in allergic asthma. The IL-13 induced two characteristic epithelial effects, proliferation and modulation of MUC5AC gene expression. There was a concentration dependence of these events, wherein high concentrations of IL-13 (10 ng/ml) induced proliferation, whereas lower concentrations (1 ng/ml) increased MUC5AC mRNA (where mRNA is messenger RNA). Interestingly, these effects occurred in an inverse manner, with the high concentration of IL-13 also provoking a significant decrease in MUC5AC gene expression. Thus, MTE cells cultured in this manner may provide an important link between experimental findings from animal models of allergic asthma and their application to human disease.
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Affiliation(s)
- Susan M Lankford
- College of Veterinary Medicine, North Carolina State University, Raleigh, North Carolina 27606, USA
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Carvalho-Oliveira R, Saiki M, Pires-Neto RC, Lorenzi-Filho G, Macchione M, Saldiva PHN. Anti-oxidants reduce the acute adverse effects of residual oil fly ash on the frog palate mucociliary epithelium. Environ Res 2005; 98:349-54. [PMID: 15910789 DOI: 10.1016/j.envres.2004.10.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2004] [Revised: 10/06/2004] [Accepted: 10/14/2004] [Indexed: 05/02/2023]
Abstract
There is evidence indicating that oxidants play a pivotal role in determining air pollution-dependent lung injury. In the present study we explored the role of oxidants present in ambient particles in causing damage to the mucociliary epithelium. We explored the protective effects of pretreatment with three substances (n-propyl gallate, DL-alpha-tocopherol acetate, and EDTA) on the frog palate exposed to residual oil fly ash (ROFA). The parameters analyzed were mucociliary transport (MCT) and ciliary beating frequency (CBF) after 0, 10, 20, 30, 60, and 120 min of exposure. MCT was decreased significantly by ROFA (P < 0.001), with a significant interaction effect (P = 0.02) between the duration of exposure and treatment with antioxidants. The inhibitory effects on MCT of the substances tested were significantly different (P = 0.002); vitamin E was similar to control (Ringer) and different from all other groups. CBF showed no significant effect of duration of exposure (P = 0.465), but a significant interaction between duration of exposure and treatments was observed (P = 0.011). Significant differences were detected among treatments (P < 0.001), with ROFA and n-propyl gallate at concentrations of 50 microM presenting a short-lived increase in CBF, which was not observed in the remaining groups. The results showed that both MCT and CBF were affected within a short period (100 min) of exposure to ROFA and that the presence of antioxidant substances, such as vitamin E (4 mg/mL) and n-propyl gallate (300 microM), protected against the mucociliary impairment induced by ROFA on the frog palate.
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Affiliation(s)
- Regiani Carvalho-Oliveira
- Laboratory of Experimental Air Pollution, Department of Pathology, University of São Paulo, Av. Dr. Arnaldo 455, SP CEP01246-903 São Paulo, Brazil
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Lankford S, Macchione M, Crews A, McKane S, Akley N, Martin L. Modeling the Airway Epithelium in Allergic Asthma: Interleukin-13-induced Effects in Differentiated Murine Tracheal Epithelial Cells. In Vitro Cell Dev Biol Anim 2005. [DOI: 10.1290/0502012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Guimarães ET, Macchione M, Lobo DJA, Domingos M, Saldiva PHN. Evaluation of the mutagenic potential of urban air pollution in São Paulo, Southeastern Brazil, using the Tradescantia stamen-hair assay. Environ Toxicol 2004; 19:578-584. [PMID: 15526269 DOI: 10.1002/tox.20065] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
We used a short-term bioassay--the Tradescantia stamen-hair assay (TSH)--to evaluate the toxicity of ambient particles with an aerodynamic diameter less than 10 microm sampled in the metropolitan region of São Paulo, Brazil. Two exposure locations were selected: downtown São Paulo and Caucaia do Alto (mean PM10 levels of 64 and 14 microg/m3, respectively). The experiment was conducted July 11-August 15, 2002, and toxicity was assessed with the Tradescantia stamen-hair assay (TSH) employing clone KU-20 of Tradescantia. Four experimental groups were defined: inflorescences collected from plants cultivated in Caucaia, inflorescences collected from plants cultivated in São Paulo (to establish the baseline level of mutations in stamen hairs at both sites), inflorescences collected from plants cultivated in Caucaia and brought to São Paulo and maintained in chambers that received ambient air, and inflorescences collected from plants cultivated in Caucaia and brought to São Paulo and maintained in chambers that received air passed through a particle filter. The frequency of mutations observed in Caucaia was significantly lower than that in the remaining groups. Flower cuttings brought from Caucaia and receiving ambient air of São Paulo showed a rate of mutations similar to that of plants cultivated in São Paulo. Filtering particles from the air reduced the rate of mutation but not sufficiently to reach the level of that in Caucaia. The frequency of mutations observed in São Paulo was significantly associated with PM10 levels on the fifth day before the opening of the flowers (r = 0.47, p = 0.025). Our results indicate that urban particles play a significant role in the development of pollution-dependent mutations.
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Affiliation(s)
- Eliane T Guimarães
- Departamento de Patologia, Faculdade de Medicina da USP, Laboratório de Poluição Atmosférica Experimental, Avenida Dr. Arnaldo 455, 01246-903 São Paulo, Brazil
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Sánchez-Chardi A, De Oliveira R, Lobo D, Saldiva P, Lorenzi-Filho G, Macchione M. 628 Use of deferoxamine on mucociliary epithelium exposed to oxidative stress. Toxicol Lett 2003. [DOI: 10.1016/s0378-4274(03)90627-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Sumita NM, Mendes ME, Macchione M, Guimarães ET, de Lichtenfels AJFC, de Lobo DJA, Saldiva PHN, Saiki M. Tradescantia pallida cv. purpurea boom in the characterization of air pollution by accumulation of trace elements. J Air Waste Manag Assoc 2003; 53:574-579. [PMID: 12774990 DOI: 10.1080/10473289.2003.10466197] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Tradescantia pallida cv. purpurea, a plant species widely employed for ornamentation in Brazil, has been successfully used for monitoring the genotoxicity of various agents by the micronucleus assay. To amplify knowledge about its suitability as a bioindicator species, its capacity for accumulating trace elements from urban air pollution was evaluated. T. pallida was rooted using standardized soil, and the vases were distributed in two highly polluted sites of the urban area of São Paulo, Brazil (Cerqueira Cesar and Congonhas districts), and in one unpolluted control site situated approximately 50 km from downtown São Paulo (in Caucaia do Alto). Approximately six months after exposure to pollutants, adult leaves of this plant were collected monthly for 12 months. The leaves were washed with deionized water, dried, and ground for analyses. Characterization of element levels was carried out by neutron activation analysis. Powdered samples and standards were irradiated at the IEA-R1 nuclear reactor for short and long periods, and concentrations of As, Ba, Br, Ca, Ce, Cl, Cr, Co, Fe, K, La, Mn, Na, Rb, Sb, Sc, Sr, Th, and Zn were determined. Analysis of variance applied to the results indicated that samples from polluted sites present the highest concentrations of Ba, Ce, Cr, Co, Fe, La, Sb, and Sc (p < 0.05). Discriminant analysis revealed that it was possible to distinguish the two polluted areas with a precision of 97.5%, based on the amount of pollutant elements measured in the plants at each site. The results indicated the potential use of T. pallida as an accumulator plant for air pollution biomonitoring.
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Booth B, Bonner J, Akley N, Macchione M, Adler K, Martin LD. Interleukin-13, a Mediator of Subepithelial Fibrosis, Enhances Growth Factor Production and Proliferation in Human Airway Epithelial Cells. Chest 2001. [DOI: 10.1378/chest.120.1_suppl.s15] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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Fló-Neyret C, Lorenzi-Filho G, Macchione M, Garcia ML, Saldiva PH. Effects of formaldehyde on the frog's mucociliary epithelium as a surrogate to evaluate air pollution effects on the respiratory epithelium. Braz J Med Biol Res 2001; 34:639-43. [PMID: 11323751 DOI: 10.1590/s0100-879x2001000500012] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
The increasing use of alcohol as an alternative fuel to gasoline or diesel can increase emission of formaldehyde, an organic gas that is irritant to the mucous membranes. The respiratory system is the major target of air pollutants and its major defense mechanism depends on the continuous activity of the cilia and the resulting constant transportation of mucous secretion. The present study was designed to evaluate the effects of formaldehyde on the ciliated epithelium through a relative large dose range around the threshold limit value adopted by the Brazilian legislation, namely 1.6 ppm (1.25 to 5 ppm). For this purpose, the isolated frog palate preparation was used as the target of toxic injury. Four groups of frog palates were exposed to diluted Ringer solution (control, N = 8) and formaldehyde diluted in Ringer solution at three different concentrations (1.25, 2.5 and 5.0 ppm, N = 10 for each group). Mucociliary clearance and ciliary beat frequency decreased significantly in contact with formaldehyde at the concentrations of 2.5 and 5.0 ppm after 60 min of exposure (P<0.05). We conclude that relatively low concentrations of formaldehyde, which is even below the Brazilian threshold limit value, are sufficient to cause short-term mucociliary impairment.
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Affiliation(s)
- C Fló-Neyret
- Laboratório de Poluição Atmosférica Experimental, Departamento de Patologia, Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, Brasil.
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Nakagawa NK, Macchione M, Petrolino HM, Guimarães ET, King M, Saldiva PH, Lorenzi-Filho G. Effects of a heat and moisture exchanger and a heated humidifier on respiratory mucus in patients undergoing mechanical ventilation. Crit Care Med 2000; 28:312-7. [PMID: 10708159 DOI: 10.1097/00003246-200002000-00004] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE To evaluate the effects of a heat and moisture exchanger and a heated humidifier on respiratory mucus and transportability by cilia and cough in patients undergoing invasive mechanical ventilation (up to 72 hrs). DESIGN Prospective, randomized, clinical study. SETTING General intensive care unit and university research laboratory. PATIENTS A total of 32 consecutive patients with acute respiratory failure, who were intubated and mechanically ventilated in the intensive care unit setting, were enrolled in the study. INTERVENTIONS Patients were randomly assigned to receive as a humidifying system a heat and moisture exchanger (HME) or heated humidified water (HHW) at the onset of mechanical ventilation (time 0). Respiratory mucus samples were collected by suction using a sterile technique at time 0, 24, 48, and 72 hrs of mechanical ventilation. MEASUREMENTS AND MAIN RESULTS Eleven patients were excluded from this study because of either extubation or death before 72 hrs of mechanical ventilation, leaving 12 patients in the HME group and nine patients in the HHW group. Ventilatory variables including minute volume, mean airway pressure, positive end-expiratory pressure, Fio2, as well as Pao2/Fio2 ratio, fluid balance (last 6 hrs), furosemide, and inotrope administration (last 4 hrs) were recorded. In vitro mucus transportability by cilia was evaluated on the mucus-depleted frog palate model, and the results were expressed as the mucus transport rate. Cough clearance (an estimation of the interaction between the flow of air and the mucus lining the bronchial walls) was measured using a simulated cough machine, the results being expressed in millimeters. Mucus wettability was measured by the contact angle between a mucus sample drop and a flat glass surface. Mucus rheologic properties (mechanical impedance [log G*] and the ratio between viscosity and elasticity [tan delta]) were measured using a magnetic microrheometer at 1 and 100 cGy/sec deformation frequency. The two humidification groups were comparable in terms of the Acute Physiology and Chronic Health Evaluation II score, age, gender, ventilatory variables, fluid balance, use of inotropes, and furosemide. CONCLUSION Ours results indicate that air humidification with either HME or HHW at 32 degrees C (89.6 degrees F) has similar effects on mucus rheologic properties, contact angle, and transportability by cilia in patients undergoing mechanical ventilation, except for transportability by cough, which diminished after 72 hrs of mechanical ventilation in the HME group (p = .0441).
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Affiliation(s)
- N K Nakagawa
- Faculdade de Medicina da Universidade de São Paulo, Brazil
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Macchione M, Oliveira AP, Gallafrio CT, Muchão FP, Obara MT, Guimarães ET, Artaxo P, King M, Lorenzi-Filho G, Junqueira VC, Saldiva PH. Acute effects of inhalable particles on the frog palate mucociliary epithelium. Environ Health Perspect 1999; 107:829-33. [PMID: 10504151 PMCID: PMC1566620 DOI: 10.1289/ehp.99107829] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
This work was designed to evaluate the toxicity of inhalable particles [less than/equal to] 10 microm in aerodynamic diameter (PM(10)) collected from the urban air in São Paulo, Brazil, to the mucociliary apparatus using the frog palate preparation. Seven groups of frog palates were immersed in different concentrations of PM(10) diluted in Ringer's solution during 120 min: 0 (control, n = 31); 50 (n = 10); 100 (n = 9); 500 (n = 28); 1,000 (n = 10); 5,000 (n = 11); and 10,000 microg/m(3) (n = 10). Mucociliary transport and transepithelial potential difference were determined at 0, 30, 60, and 120 min exposure. Additional groups (control and 500 microg/m(3)) were studied by means of morphometric analyses (quantification of the amount of intraepithelial and surface mucins), measurement of cilia beat frequency, and quantification of total glutathione. Mucociliary transport and transepithelial potential difference were significantly decreased at higher concentrations of PM(10) (p = 0.03 and p = 0.02, respectively). Exposure to PM(10) also elicited a significant decrease of total glutathione (p = 0. 003) and depletion of neutral intraepithelial mucins (p = 0.0461). These results show that PM(10) can promote significant alterations in ciliated epithelium in vitro.
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Affiliation(s)
- M Macchione
- Laboratório de Poluição Atmosférica Experimental, Faculdade de Medicina da USP and Instituto do Coração, HC-FMUSP, São Paulo, Brazil
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Macchione M, Lorenzi-Filho G, Guimarães ET, Junqueira VB, Saldiva PH. The use of the frog palate preparation to assess the effects of oxidants on ciliated epithelium. Free Radic Biol Med 1998; 24:714-21. [PMID: 9586800 DOI: 10.1016/s0891-5849(97)00332-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
This work was designed to develop a simple method based on the frog palate preparation to study the effects of hydrogen peroxide (H2O2) on ciliated epithelium. For this purpose, five sets (n = 10 per set) of frog palate preparations (Rana catesbeiana) were studied during 35 min after immersion in increasing concentrations of H2O2: 1, 8, 16, 32, and 64 microM. The effects of H2O2 on ciliated epithelium were assessed by measuring transepithelial potential difference (PD) and mucociliary transport (MT). Measurements were performed at 5-min intervals. In addition, the palates submitted to the 64 microM dose were immersed in Ringer's solution and followed by another 30 min to assess the possible recovery after maximal injury. Transepithelial potential difference (PD) was measured by means of agar-filled microelectrodes connected to the high input of a grounded electrometer. Mucociliary transport (MT) was determined by directly monitoring the movement of autologous mucus along the palate surface. Significant decrease in MT was observed in 16 microM and beyond and significant change in PD was observed in 32 microM and 64 microM. Palates submitted to 64 microM of H2O2 returned to their baseline levels of PD and MT within 30 min of recovery in Ringer's solution. In conclusion, the frog palate preparation was shown to be an efficient experimental tool to assess the deleterious effects of H2O2 on the ciliated epithelium.
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Affiliation(s)
- M Macchione
- Laboratório de Poluição Atmosférica Experimental, Faculdade de Medicina da USP and Instituto do Coração, HC-FMUSP, São Paulo, Brazil
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Abstract
The study was designed to investigate the influence of water pollution on gill apparatus. Specimens of Nile tilapia were collected from a polluted site in the São Paulo metropolitan area (Billings reservoir) and from a "clean" area. Fish from the polluted site showed a chronic inflammatory process in the distal region of the gill filaments, with epithelial hyperplasia. The raker length was increased and hypersecretion occurred, with a considerable volume of alcian blue-positive mucin on the epithelium of the rakers and a smaller volume of periodic acid-Schiff-positive mucin on the epithelial surface of the filaments. The rigidity of mucus in fish from the polluted site was increased, but no abnormalities in the viscosity to elasticity ratio or in mucus "wettability" were observed.
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Affiliation(s)
- A J Lichtenfels
- Laboratório de Poluição Atmosférica Experimental, Faculdade de Medicina da Universidade de São Paulo, Brazil
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Macchione M, Guimarães ET, Saldiva PH, Lorenzi-Filho G. Methods for studying respiratory mucus and mucus clearance. Braz J Med Biol Res 1995; 28:1347-55. [PMID: 8728865] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
We describe some basic procedures for studying the properties of mucus. These techniques can be applied in both clinical and physiological studies to improve the understanding of the mechanisms related to epithelial defense in health and disease. Mucus collection--A major difficulty is the lack of simple and noninvasive methods for collecting normal mucus in sufficient quantity for later analysis. Physical properties of mucus--A. Rheology: Mucus exhibits both solid and liquid properties and the important factor governing the actual behavior is time. The magnetic microrheometer provides an elegant method for measuring rheological properties of microsamples. B. Adhesivity: It characterizes the forces of attraction between an adherent surface and an adhesive system and can be calculated by measuring the contact angle between a mucus drop and a surface. Mucus Transport--A. Mucus transport by cilia: Mucus is primarily cleared by the continuous ciliary beating, which can be studied using techniques such as the frog palate preparation as well as direct measurement, i.e., in situ mucus clearance. B. Cough clearance: It is essential for elimination of secretions in diseases leading to hypersecretory states. The cough machine simulates the flow-time profile of human coughing. Transepithelial potential difference--A potential difference exists between the epithelial surface and the submucosa and is the net result of the activity of the ion-transport system of the pulmonary epithelium. The potential can be measured using appropriate microelectrodes. Quantitative morphology--Methods may be used to characterize the epithelial surface condition that continuously changes during aggressive conditions.
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Affiliation(s)
- M Macchione
- Departamento de Patologia, Universidade de São Paulo, Brasil
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Saldiva PH, Parada MA, Macchione M, Paiva PS, Guimarães ET, Lorenzi G, Martins MA, Montes GS, Balbani AP, King M. Nasal mucus clearance in rats: differences with sex and phase of the oestrous cycle. J Appl Toxicol 1995; 15:289-95. [PMID: 7594198 DOI: 10.1002/jat.2550150410] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
We studied the changes in airway mucus rheology and clearability, as well as in morphometric indices, between male rats and females in either the oestrous or dioestrous phases of the oestrous cycle. Three-month-old Wistar rats were studied and the phases of the oestrous cycle were determined based on analysis of vaginal smears stained by a modified Shorr's procedure. Nasal mucus samples were analysed by means of magnetic rheometry and determination of in vitro transport rate in the frog palate preparation. In situ clearance on the exposed nasal septum was also determined. The mucociliary velocity in situ was significantly affected by both sex and the oestrous cycle phase. In female rats, dioestrous phase clearance was significantly slower than the oestrous phase one. Clearance in male rats was faster than that of both the phases studied in females. Mucus rigidity of females in the oestrous phase was more rigid than that of females in the dioestrous phase and that of males. Mucus viscosity/elasticity ratio for deformations performed at high frequencies was greater for females in comparison with males. Cough clearability computed on the basis of rheological parameters was predicted to be more favourable in females. There were no significant differences between the three groups in mucociliary clearance in vitro. Morphometric studies of the nasal epithelium showed that epithelial and glandular volumes did not exhibit sex- or oestrous-phase-related differences, but the amount of epithelial acidic glycoproteins was lower in females in the oestrous phase in comparison with males and those in the dioestrous phase, the same trend being observed in the glands of the lamina propria.(ABSTRACT TRUNCATED AT 250 WORDS)
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Affiliation(s)
- P H Saldiva
- Laboratório de Poluição Atmosférica Experimental, HC-FMUSP, São Paulo, Brazil
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Macchione M, King M, Lorenzi-Filho G, Guimarães ET, Zin WA, Böhm GM, Saldiva PH. Rheological determinants of mucociliary transport in the nose of the rat. Respir Physiol 1995; 99:165-72. [PMID: 7740205 DOI: 10.1016/0034-5687(94)00080-j] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
The present work was designed to investigate whether the rheological determinants for nasal mucociliary transport are the same in the intact preparation (in situ), as they are when the mucus is added exogenously to the isolated, mucus-depleted frog palate (in vitro). We evaluated the association between estimators of mucociliary transport in both conditions and rheological parameters using multiple regression techniques. Two kinds of rats were used: (a) specific pathogen free (SPF) rats, representing the normal condition of respiratory epithelium; (b) non-SPF rats (NSPF), which have a chronic inflammatory process in the airways. In situ mucociliary clearance (MCC) was determined by measuring the displacement of charcoal particles placed in the nasal septum. In vitro mucociliary transport (MCT) of rat nasal mucus was measured using the isolated frog palate preparation. Mucus rheologic properties were determined by magnetic microrheometry, in oscillatory deformations performed at 1, 10 and 100 radians/sec. No differences were detected between SPF and NSPF rats in terms of rheological parameters. A decreased MCC was found in NSPF in comparison with the SPF group, but no differences were observed between groups in terms of MCT, as could be predicted by rheological data. When all animals were pooled, in situ transport was significantly associated with the viscosity/elasticity ratio, whereas in vitro transport was dependent on the total mechanical impedance of the mucus sample. In conclusion, in situ mucus transport is influenced by other rheological parameters than those associated with in vitro transportability.
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Affiliation(s)
- M Macchione
- Laboratório de Poluição Atmosférica Experimental, Faculdade de Medicina da USP, Brazil
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Lemos M, Lichtenfels AJ, Amaro Júnior E, Macchione M, Martins MA, King M, Böhm GM, Saldiva PH. Quantitative pathology of nasal passages in rats exposed to urban levels of air pollution. Environ Res 1994; 66:87-95. [PMID: 8013440 DOI: 10.1006/enrs.1994.1046] [Citation(s) in RCA: 25] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
In order to assess the adverse effects of urban levels of air pollution, rats were used as biological indicators in a chronic exposure experiment. Animals were housed for 6 months in the center of São Paulo (the largest South American town) and compared to controls kept for the same period in a clean area. Pollution levels were obtained from a state air pollution monitoring station, 200 m distant from exposure location, which provided the levels of CO, SO2, particulates, and ozone. The nasal septum was submitted to quantitative analysis of morphological and histochemical parameters, comprising the measurement of volume of epithelium and lamina propria per unity of surface of basal lamina, the amount of mucus stored in the surface epithelium, the volume densities of neutral and acidic mucus in the lamina propria glands, and the densities of secretory and ciliated cells in the epithelium. The results obtained in the present investigation suggest that chronic exposure to urban levels of air pollution induces secretory hypertrophy, combined with a shift toward acidic mucus secretion and ciliary damage. The results are consistent with the idea that prolonged exposure to low levels of air pollution deteriorates respiratory defenses against infectious agents and may cause an increase in respiratory morbidity and perhaps mortality.
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Affiliation(s)
- M Lemos
- Laboratório de Poluição Atmosférica Experimental, Faculty of Medicine, University of São Paulo, Brazil
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del Giglio A, Franco EL, Torloni H, Marques LA, Brentani MM, Arap W, Macchione M, Chammas R. Tumor and serum beta-2-microglobulin expression in women with breast cancer. Am J Clin Pathol 1989; 92:339-42. [PMID: 2476028 DOI: 10.1093/ajcp/92.3.339] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
To investigate whether the tumor expression of beta-2-microglobulin (beta 2-M) could serve as a marker of tumor biologic behavior, the authors studied specimens of breast carcinomas from 60 consecutive female patients. Presence of beta 2-M was analyzed by immunohistochemistry. No significant correlations were found between tumor beta 2-M expression and several histologic attributes such as type, histologic and nuclear grades, mitotic index, necrosis, vascular invasion, and lymphocytic infiltration. Likewise, beta 2-M was not associated with markers of disease extension such as TNM, (UICC, classification of malignant tumors) staging and axillary lymph node involvement or with estrogen, progesterone, and glucocorticoid receptor levels. However, there was a significantly positive association between tumor beta 2-M expression and the degree of lymphocytic infiltration in the tumor tissue. Beta 2-M serum levels were determined by an enzyme-linked immunosorbent assay in samples from 22 of the above women. Although some of the highest values had been obtained in women with larger (T4) primary tumors, the authors failed to detect any statistical relationship between beta 2-M expression in the tumor with serum levels or between serum beta 2-M and the above histologic, laboratory, and clinical factors.
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Affiliation(s)
- A del Giglio
- Ludwig Institute for Cancer Research, R. Prof. Antonio Prudente, Sao Paulo, Brazil
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Giannella-Neto D, Wajchenberg BL, Mendonca BB, Liberman B, Nery M, Macchione M, Spencer EM. Somatomedin levels in the diagnosis and therapy of growth hormone deficiency. Horm Metab Res 1988; 20:175-81. [PMID: 3384400 DOI: 10.1055/s-2007-1010786] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Serum somatomedin-C (SM-C) and somatomedin (SM) concentrations were measured by, respectively, radioimmuno (SM-C RIA) and radioreceptor assays (SM RRA) in 3 groups of children with short stature. The patient population was different from previously reported series in that it was urban Brazilian, low income, and significantly older. Group A consisted of 6 male and 3 female children, aged 7.7-16.0 years, whose average peak plasma immunoreactive growth hormone (GH) was above 10 ng/ml. Group B contained 8 male and 5 female untreated GH-deficient patients, ranging in age from 9.5 to 21.0 years. In Group C there were 4 male and 1 female GH-deficient subjects treated with I.M. injections of GH (0.1 U/kg) from 1 month to 7 years. The mean +/- SE basal RIA SM-C (ng/ml) concentrations were significantly lower in groups B (34.2 +/- 8.8) and C (43.8 +/- 13.7) than A (214.3 +/- 42.7): A X B, P less than 0.001 and A X C, P less than 0.02. Likewise the mean +/- SE basal RRA SM (ng/ml) concentrations were significantly lower in groups B (78.9 +/- 17.6) and C (90.8 +/- 19.3) than group A (316.3 +/- 43.0): A X B, P less than 0.001 and A X C, P less than 0.002. A significant linear correlation was observed between RIA and RRA in group B (r = 0.84; P less than 0.001) and C (r = 0.96; P less than 0.01), but not for A (r = 0.61; P greater than 0.05).(ABSTRACT TRUNCATED AT 250 WORDS)
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Affiliation(s)
- D Giannella-Neto
- Hospital das Clinicas, University of São Paulo School of Medicine, Brazil
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Giannella-Neto D, Wajchenberg BL, Mendonça BB, Almeida SF, Macchione M, Spencer EM. Criteria for the cure of acromegaly: comparison between basal growth hormone and somatomedin C plasma concentrations in active and non-active acromegalic patients. J Endocrinol Invest 1988; 11:57-60. [PMID: 3361077 DOI: 10.1007/bf03350100] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Fasting plasma growth hormone (GH) and somatomedin C (SmC) levels were compared as criteria for the cure of acromegaly in 7 untreated and 16 treated acromegalic patients studied 1 to 16 yr after pituitary surgery and/or radiotherapy. The patients without active disease presented a significant correlation between GH and SmC. Only when basal GH was lower than 2.5 ng/ml were SmC values within the normal range. The subjects with active acromegaly (both treated and untreated) presenting GH higher than 5 ng/ml did not show any correlation between GH and SmC levels.
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Affiliation(s)
- D Giannella-Neto
- Hospital das Clínicas, University of São Paulo School of Medicine, Brazil
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