1
|
Lopes ACR, Zavan B, Corrêa YJC, Vieira TM, Severs LJ, Oliveira LM, Soncini R. Impact of obesity and ovariectomy on respiratory function in female mice. Respir Physiol Neurobiol 2021; 294:103775. [PMID: 34416380 DOI: 10.1016/j.resp.2021.103775] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 08/03/2021] [Accepted: 08/09/2021] [Indexed: 10/20/2022]
Abstract
Obesity and the corresponding variations in female sex hormones are associated with severe lung disease. We determined the potential effects of obesity and sex hormones in female mice by investigating changes in lung structure and respiratory function in an obesity model induced by postnatal overnutrition. Obese female mice exhibited pronounced weight gain, abdominal fat accumulation and collagen type I deposition in the airways. However, neither elastic tissue nor estrogen receptors-α/-β were affected in obese female mice after ovariectomy or sham-operated mice. Bronchoconstriction in response to methacholine challenge in obese sham-operated mice was higher than in the obese group after ovariectomy. Our results suggest that the coexistence of obesity and ovariectomy impacted on respiratory system and airway resistance (attenuates bronchoconstriction after methacholine), on collagen I deposition and on airway estrogen β-receptors of mice.
Collapse
Affiliation(s)
- Ana C R Lopes
- Department of Physiology, Institute of Biomedical Science, Federal University of Alfenas, 37130-000, Alfenas, MG, Brazil
| | - Bruno Zavan
- Integrative Animal Biology Laboratory, Institute of Biomedical Science, Federal University of Alfenas, 37130-000, Alfenas, MG, Brazil
| | - Yuri J C Corrêa
- Department of Physiology, Institute of Biomedical Science, Federal University of Alfenas, 37130-000, Alfenas, MG, Brazil
| | - Tânia M Vieira
- Department of Physiology, Institute of Biomedical Science, Federal University of Alfenas, 37130-000, Alfenas, MG, Brazil
| | - Liza J Severs
- Center for Integrative Brain Research, Seattle Children's Research Institute, 1900 9th Avenue, JMB10, Seattle, WA, 98101, USA
| | - Luiz M Oliveira
- Center for Integrative Brain Research, Seattle Children's Research Institute, 1900 9th Avenue, JMB10, Seattle, WA, 98101, USA
| | - Roseli Soncini
- Department of Physiology, Institute of Biomedical Science, Federal University of Alfenas, 37130-000, Alfenas, MG, Brazil.
| |
Collapse
|
2
|
Santos MP, Gonçalves-Santos E, Gonçalves RV, Santos EC, Campos CC, Bastos DSS, Marques MJ, Souza RLM, Novaes RD. Doxycycline aggravates granulomatous inflammation and lung microstructural remodeling induced by Schistosoma mansoni infection. Int Immunopharmacol 2021; 94:107462. [PMID: 33611055 DOI: 10.1016/j.intimp.2021.107462] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Revised: 01/29/2021] [Accepted: 02/01/2021] [Indexed: 12/20/2022]
Abstract
Although doxycycline exhibits immunomodulatory properties, its effects on pulmonary infection by Schistosoma mansoni remain overlooked. Thus, we investigated the impact of this drug on lung granulomatous inflammation and microstructural remodeling in a murine model of schistosomiasis. Swiss mice were randomized in four groups: (i) uninfected, (ii) infected with S. mansoni and untreated, (iii) infected treated with praziquantel (Pzq; 200 mg/kg), and (iv) infected treated with Dox (50 mg/kg). Pz was administered in a single dose, and Dox for 60 days. S. mansoni induced marked granulomatous lung inflammation, which was associated to cytokines upregulation (IL-2, IL-4, IL-10, IFN-γ, TNF-α, and TGF-β), neutrophils and macrophages recruitment, alveolar collapse, lung fibrosis, and extensive depletion of elastic fibers. These parameters were attenuated by Pzq and aggravated by Dox. Exudative/productive granulomas were predominant in untreated and Dox-treated animals, while fibrotic granulomas were more frequent in Pzq-treated mice. The number and size of granulomas in Dox-treated animals was higher than untreated and Pzq-treated mice. Dox treatment inhibited the increase in MMP-1 and MMP-2 activity but upregulated myeloperoxidase and N-acetylglucosaminidase activity compared to untreated and Pzq-treated animals. Dox and Pzq exerted no effect on elastin depletion and upregulation of elastase activity. Together, our findings indicated that Dox aggravated granulomatous inflammation, accelerating lung microstructural remodeling by downregulating MMP-1 and MMP-2 activity without impair neutrophils and macrophages recruitment or elastase activity. Thus, Dox potentiates inflammatory damage associated with lung fibrosis, elastin depletion and massive alveolar collapse, profoundly subverting lung structure in S. mansoni-infected mice.
Collapse
Affiliation(s)
- Margarida P Santos
- Institute of Biomedical Sciences, Department of Structural Biology, Federal University of Alfenas, Alfenas, Minas Gerais, Brazil
| | - Elda Gonçalves-Santos
- Institute of Biomedical Sciences, Department of Structural Biology, Federal University of Alfenas, Alfenas, Minas Gerais, Brazil
| | - Reggiani V Gonçalves
- Department of Animal Biology, Federal University of Viçosa, Viçosa, Minas Gerais, Brazil
| | - Eliziária C Santos
- School of Medicine, Federal University of Jequitinhonha and Mucuri Valleys, Diamantina, Minas Gerais, Brazil
| | - Camila C Campos
- Institute of Biomedical Sciences, Department of Structural Biology, Federal University of Alfenas, Alfenas, Minas Gerais, Brazil
| | - Daniel S S Bastos
- Department of General Biology, Federal University of Viçosa, Viçosa, Minas Gerais, Brazil
| | - Marcos J Marques
- Institute of Biomedical Sciences, Department of Pathology and Parasitology, Federal University of Alfenas, Alfenas, Minas Gerais, Brazil
| | - Raquel L M Souza
- Institute of Biomedical Sciences, Department of Pathology and Parasitology, Federal University of Alfenas, Alfenas, Minas Gerais, Brazil
| | - Rômulo D Novaes
- Institute of Biomedical Sciences, Department of Structural Biology, Federal University of Alfenas, Alfenas, Minas Gerais, Brazil.
| |
Collapse
|
3
|
Maimaitiaili G, Kahaer K, Tang L, Zhang J. The Effect of Vidian Neurectomy on Pulmonary Function in Patients with Allergic Rhinitis and Chronic Rhinosinusitis with Nasal Polyps. Am J Med Sci 2020; 360:137-145. [PMID: 32423746 DOI: 10.1016/j.amjms.2020.04.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Revised: 10/18/2019] [Accepted: 04/18/2020] [Indexed: 11/30/2022]
Abstract
BACKGROUND At present, the effect of operation intervention on pulmonary function is not clear in patients with allergic rhinitis and chronic rhinosinusitis with nasal polyps (AR&CRSwNP). This study was conducted to investigate the effect of vidian neurectomy on pulmonary function and airway hyperresponsiveness (AHR) in patients with AR&CRSwNP. METHODS The incidences of AHR, bronchial asthma (BA) and pulmonary function impairment in 112 patients with AR&CRSwNP were investigated. Subsequently, we evaluated the outcome of vidian neurectomy and its effect on pulmonary function and AHR. Furthermore, we explored the correlation between postoperative level of eosinophilic cationic protein (ECP) and the changes of pulmonary function indices or dose of methacholine. RESULTS In this study, the incidences of pulmonary function impairment, bronchial asthma, and AHR in patients with AR&CRSwNP were 61.61%, 69.64%, and 66.96%, respectively. Particularly, vidian neurectomy effectively alleviated nasal symptoms, improved pulmonary function, and reduced AHR in AR&CRSwNP patients. Furthermore, the postoperative level of ECP, IgE, Interleukin-4 and Interleukin-IL-5 was dramatically decreased, and there was an obvious inverse correlation between ECP level and pulmonary function index or dose of methacholine. CONCLUSIONS Vidian neurectomy is effective in alleviating nasal symptoms, improving pulmonary function, and reducing the risk of AHR of patients with AR&CRSwNP by decreasing the level of ECP.
Collapse
Affiliation(s)
| | - Kayisaier Kahaer
- ENT Department, People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi, Xinjiang, China
| | - Liang Tang
- ENT Department, People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi, Xinjiang, China.
| | - Jin Zhang
- ENT Department, People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi, Xinjiang, China.
| |
Collapse
|
4
|
Lourenço LO, Ramos Lopes AC, Zavan B, Soncini R. Vagotomy influences the lung response to adrenergic agonists and muscarinic antagonists. Respir Physiol Neurobiol 2019; 274:103358. [PMID: 31811939 DOI: 10.1016/j.resp.2019.103358] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Revised: 12/03/2019] [Accepted: 12/04/2019] [Indexed: 12/01/2022]
Abstract
Mammals airways are extensively innervated by the vagus nerve, which controls the airway diameter and bronchial tone. However, very few studies described the respiratory function and lung morphology after vagal section. In the present study, we evaluated the respiratory mechanics after aerosolization of vehicle (to obtain control values), a muscarinic agonist (methacholine), a β2-adrenergic agonist (salbutamol) or a muscarinic antagonist (ipratropium bromide) in intact (Vi) and bilaterally vagotomized (Vx) Swiss male mice. Different group was established for morphometric analyze. The total lung resistance, airway resistance, elastance, compliance, lung tissue damping, lung tissue elastance, and morphological parameters (collagen and elastic fibers) were significantly different in the Vx group compared to the Vi group. Bronchoconstrictor and bronchodilators change the respiratory function of the Vx group. In conclusion, the vagus nerve modulates the lung function in response to bronchoconstriction and bronchodilation, as well as lung architecture of mice.
Collapse
Affiliation(s)
- Luiz Otávio Lourenço
- Department of Physiology, Institute of Biomedical Science, Federal University of Alfenas, 37130-000, Alfenas, MG, Brazil
| | - Ana Carolina Ramos Lopes
- Department of Physiology, Institute of Biomedical Science, Federal University of Alfenas, 37130-000, Alfenas, MG, Brazil
| | - Bruno Zavan
- Department of Physiology, Institute of Biomedical Science, Federal University of Alfenas, 37130-000, Alfenas, MG, Brazil; Integrative Animal Biology Laboratory, Institute of Biomedical Science, Federal University of Alfenas, 37130-000, Alfenas, MG, Brazil
| | - Roseli Soncini
- Department of Physiology, Institute of Biomedical Science, Federal University of Alfenas, 37130-000, Alfenas, MG, Brazil.
| |
Collapse
|
5
|
Enes-Marques S, Giusti-Paiva A. Litter size reduction accentuates maternal care and alters behavioral and physiological phenotypes in rat adult offspring. J Physiol Sci 2018; 68:789-798. [PMID: 29380149 PMCID: PMC10717135 DOI: 10.1007/s12576-018-0594-8] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2017] [Accepted: 01/18/2018] [Indexed: 01/12/2023]
Abstract
Maternal behavior has a substantial impact on the behavioral, endocrine, and neural development of the pups. This study investigated the effect of altering the neonatal nutritional environment by modifying the litter size on maternal care and anxiety- and fear-like behaviors in rats during adulthood. On postnatal day (PND) 2, litters were adjusted to a small litter (SL) size of three pups per dam or normal litter (NL) size of 12 pups per dam. Maternal behaviors were scored daily during lactation (PND2-21). The weight gain, food intake, adiposity, and biochemical landmarks of offspring rats were evaluated. On PND60, performances in the open field, elevated plus-maze (EPM), and fear conditioning test were measured. The reduction of the litter size enhanced maternal care in lactating rats, increasing the arched-back posture and licking pups. SL offspring exhibited accelerated weight gain, hyperphagia, increased visceral fat mass, dyslipidemia, and hyperleptinemia in adulthood. The SL offspring of both sexes showed an increase in the anti-thigmotactic effect in the open field, an intact anxious-phenotype in the EPM, and a decrease in the time spent freezing during the fear-conditioning test, compared to NL. The neonatal environment as determined by litter size plays a crucial role in programming the adult metabolic phenotype as well as behavioral responses to stressful stimuli, with an impact on anxiety-like and fear behaviors. These behavioral changes in offspring may be, at least in part, a result of increased maternal care.
Collapse
Affiliation(s)
- Silvia Enes-Marques
- Laboratório de Fisiologia Translacional, Departamento de Ciências Fisiológicas, Instituto de Ciências Biomédicas, Universidade Federal de Alfenas-MG, Campus Santa Clara, Av Jovino Fernandes Sales 2600, Prédio E Sala 300, Alfenas, MG, 37130-000, Brazil
| | - Alexandre Giusti-Paiva
- Laboratório de Fisiologia Translacional, Departamento de Ciências Fisiológicas, Instituto de Ciências Biomédicas, Universidade Federal de Alfenas-MG, Campus Santa Clara, Av Jovino Fernandes Sales 2600, Prédio E Sala 300, Alfenas, MG, 37130-000, Brazil.
| |
Collapse
|
6
|
Dias MD, Goulart M, Dalécio C, Enes-Marques S, Salles ÉDSL, Venâncio M, Pereira EM, Paffaro VA, Incerpi EK, Soncini R. Metformin influences on respiratory system in obese mice induced by postnatal overnutrition. Respir Physiol Neurobiol 2017; 247:96-102. [PMID: 28963087 DOI: 10.1016/j.resp.2017.09.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2017] [Revised: 09/05/2017] [Accepted: 09/22/2017] [Indexed: 02/06/2023]
Abstract
Many studies have confirmed the merits of metformin to treat type 2 diabetes, but few studies have addressed its effect on the respiratory system. Moreover, vascular endothelial growth factor (VEGF) is critical to many lung functions. In this way, we evaluated the metformin impact on the lung in treated obese Swiss mice, induced by postnatal overnutrition. Glucose and insulin were detected and the insulin resistance index (HOMA) was calculated; inflammatory cells and nitrite/nitrate concentration (NOx) was quantified from bronchoalveolar lavage, collagen and lung VEGF-a was analysed in the lung tissue and lung mechanics were evaluated by methacholine-induced bronchoconstriction. Values of glucose, insulin, HOMA; VEGF-a and collagen demonstrate the partial ability of metformin to improve the effects of obesity. However, metformin is ineffective in re-establishing the inflammation, shows no effects on NOx and does not restore bronchoconstriction in obese mice. In conclusion, metformińs beneficial effects on lung are questionable in the postnatal overnutrition model of obesity.
Collapse
Affiliation(s)
- Maycon Daniel Dias
- Department of Physiology, Institute of Biomedical Science, Federal University of Alfenas, 37130-000 Alfenas, MG, Brazil
| | - Melissa Goulart
- Department of Physiology, Institute of Biomedical Science, Federal University of Alfenas, 37130-000 Alfenas, MG, Brazil
| | - Cecilia Dalécio
- Department of Physiology, Institute of Biomedical Science, Federal University of Alfenas, 37130-000 Alfenas, MG, Brazil
| | - Silvia Enes-Marques
- Department of Physiology, Institute of Biomedical Science, Federal University of Alfenas, 37130-000 Alfenas, MG, Brazil
| | - Évila da Silva Lopes Salles
- Department of Cell and Developmental Biology, Institute of Biomedical Science, Federal University of Alfenas, 37130-000 Alfenas, MG, Brazil
| | - Marina Venâncio
- Department of Physiology, Institute of Biomedical Science, Federal University of Alfenas, 37130-000 Alfenas, MG, Brazil
| | - Elisângela Monteiro Pereira
- Department of Clinical and Toxicological Analysis, Faculty of Pharmaceutical Sciences, Federal University of Alfenas, 37130-000 Alfenas, MG, Brazil
| | - Valdemar Antonio Paffaro
- Department of Cell and Developmental Biology, Institute of Biomedical Science, Federal University of Alfenas, 37130-000 Alfenas, MG, Brazil
| | - Erika Kristina Incerpi
- Department of Physiology, Institute of Biomedical Science, Federal University of Alfenas, 37130-000 Alfenas, MG, Brazil
| | - Roseli Soncini
- Department of Physiology, Institute of Biomedical Science, Federal University of Alfenas, 37130-000 Alfenas, MG, Brazil.
| |
Collapse
|
7
|
Addison KJ, Morse J, Robichaud A, Daines MO, Ledford JG. A Novel in vivo System to Test Bronchodilators. ACTA ACUST UNITED AC 2017; 3. [PMID: 28367537 PMCID: PMC5375107 DOI: 10.16966/2470-3176.120] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
The incidence and severity of asthma continue to rise worldwide. β-agonists are the most commonly prescribed therapeutic for asthma management but have less efficacy for some subsets of asthmatic patients and there are concerns surrounding the side effects from their long-term persistent use. The demand to develop novel asthma therapeutics highlights the need for a standardized approach to effectively screen and test potential bronchoprotective compounds using relevant in vivo animal models. Here we describe a validated method of testing potential therapeutic compounds for their fast-acting efficacy during the midst of an induced bronchoconstriction in a house dust mite challenged animal model.
Collapse
Affiliation(s)
| | | | | | | | - Julie G Ledford
- Department of Medicine, University of Arizona, Tucson, Arizona, USA; Immunobiology, University of Arizona, Tucson, Arizona, USA
| |
Collapse
|