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Freitas L, Bezerra A, Resende-Coelho A, Gomez-Lazaro M, Maciel L, Amorim T, Fernandes RJ, Fonseca H. Impact of Long-Term Swimming Exercise on Rat Femur Bone Quality. Biomedicines 2023; 12:35. [PMID: 38255142 PMCID: PMC10813774 DOI: 10.3390/biomedicines12010035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Revised: 12/18/2023] [Accepted: 12/20/2023] [Indexed: 01/24/2024] Open
Abstract
Considering the conflicting evidence regarding the potential long-term detrimental effect of swimming during growth on femur quality and fracture risk, our aim was to investigate the effect of eight months of swimming on femur quality. Twenty male eight-week-old Wistar rats were assigned into a swimming (SW; n = 10; 2 h/day, 5 days/week) or active control group (CG; n = 10, housed with running wheel) for eight months. Plasma osteocalcin and C-terminal telopeptide of type I collagen concentrations (ELISA) were assessed at baseline, four, and eight months of protocol. Femur structure (micro-computed tomography), biomechanical properties (three-point bending), and cellular density (histology) were determined after the protocol. SW displayed a lower uncoupling index, suggesting higher bone resorption, lower empty lacunae density, cortical and trabecular femur mass, femur length and cortical thickness, and higher cortical porosity than CG (p < 0.05). Although both biomarkers' concentrations decreased in both groups throughout the experiment (p < 0.001), there were no significant differences between groups (p > 0.05). No differences were also found regarding biomechanical properties, bone marrow adiposity, and osteocyte and osteoclast densities (p > 0.05). Long-term swimming was associated with unbalanced bone turnover and compromised femur growth, lower femur mass, and deteriorated cortical bone microarchitecture. However, femur trabecular microarchitecture and biomechanical properties were not affected by swimming.
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Affiliation(s)
- Laura Freitas
- Research Centre in Physical Activity, Health and Leisure (CIAFEL), Faculty of Sport, University of Porto, 4200-450 Porto, Portugal; (A.B.); (A.R.-C.); (L.M.); (H.F.)
- Laboratory for Integrative and Translational Research in Population Health (ITR), 4050-600 Porto, Portugal
| | - Andrea Bezerra
- Research Centre in Physical Activity, Health and Leisure (CIAFEL), Faculty of Sport, University of Porto, 4200-450 Porto, Portugal; (A.B.); (A.R.-C.); (L.M.); (H.F.)
- Laboratory for Integrative and Translational Research in Population Health (ITR), 4050-600 Porto, Portugal
| | - Ana Resende-Coelho
- Research Centre in Physical Activity, Health and Leisure (CIAFEL), Faculty of Sport, University of Porto, 4200-450 Porto, Portugal; (A.B.); (A.R.-C.); (L.M.); (H.F.)
- Laboratory for Integrative and Translational Research in Population Health (ITR), 4050-600 Porto, Portugal
| | - Maria Gomez-Lazaro
- i3S—Institute for Research and Innovation in Health, University of Porto, 4200-135 Porto, Portugal;
| | - Leonardo Maciel
- Research Centre in Physical Activity, Health and Leisure (CIAFEL), Faculty of Sport, University of Porto, 4200-450 Porto, Portugal; (A.B.); (A.R.-C.); (L.M.); (H.F.)
- Laboratory for Integrative and Translational Research in Population Health (ITR), 4050-600 Porto, Portugal
- Postgraduate Nursing Program, Federal University of Sergipe, São Cristovão 49100-000, Brazil
- Department of Physiotherapy, Federal University of Sergipe, Lagarto 49400-000, Brazil
| | - Tânia Amorim
- Fame Laboratory, Department of Physical Education and Sport Science, University of Thessaly, 421-00 Trikala, Greece;
| | - Ricardo J. Fernandes
- Centre of Research, Education, Innovation and Intervention in Sport (CIFI2D), Faculty of Sport, University of Porto, 4200-450 Porto, Portugal;
- Porto Biomechanics Laboratory (LABIOMEP), Faculty of Sport, University of Porto, 4050-313 Porto, Portugal
| | - Hélder Fonseca
- Research Centre in Physical Activity, Health and Leisure (CIAFEL), Faculty of Sport, University of Porto, 4200-450 Porto, Portugal; (A.B.); (A.R.-C.); (L.M.); (H.F.)
- Laboratory for Integrative and Translational Research in Population Health (ITR), 4050-600 Porto, Portugal
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Bagues A, Lopez-Tofiño Y, Galvez-Robleño C, Abalo R. Effects of two different acute and subchronic stressors on gastrointestinal transit in the rat: A radiographic analysis. Neurogastroenterol Motil 2021; 33:e14232. [PMID: 34378822 DOI: 10.1111/nmo.14232] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Revised: 06/08/2021] [Accepted: 07/13/2021] [Indexed: 12/12/2022]
Abstract
BACKGROUND The reaction to stress is an adaptive response necessary for survival. When stressors are repeated, the organism adapts, although these adaptive responses can become dysregulated and result in disease, causing gastrointestinal (GI) disorders. Radiographic methods allow the non-invasive study of how a given factor affects GI transit in the same animal at different time points. These methods have never been applied to study the consequences of stress on GI motor function and their dependency on time and stimulus. Therefore, our aim was to characterize, using radiographic techniques, the effect on GI transit of cold-restraint (CR) and forced swim (FS) stress applied acutely and subchronically in the rat. METHODS Male Wistar rats (260-330 g) were submitted to FS or CR stress, during 1 (acute) or 4 (subchronic) consecutive days. To study GI transit, radiographic methods were used. Radiographs were taken 0-24 h after barium intragastric administration on the 1st or 4th day of stress, which was applied 1 h after contrast. RESULTS Acute FS or CR slowed down gastric and small intestinal emptying but had opposite effects in the caecum: CR tended to accelerate barium transit and feces formation while FS tended to slow these parameters down. When the stimuli were applied subchronically, GI transit was not completely normalized in most of the studied parameters. CONCLUSION AND INFERENCES Mild stress alters GI transit differently depending on the nature of the stressor and its duration. Exposure to mild stressors should be considered as contributing factors to different functional GI disorders.
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Affiliation(s)
- Ana Bagues
- Department of Basic Health Sciences, Universidad Rey Juan Carlos (URJC, Alcorcón, Spain
- High Performance Research Group in Experimental Pharmacology (PHARMAKOM-URJC, URJC, Alcorcón, Spain
- Unidad, Instituto de Química Médica (IQM, Consejo Superior de Investigaciones Científicas (CSIC, Asociada I+D+i del, Madrid, Spain
| | - Yolanda Lopez-Tofiño
- Department of Basic Health Sciences, Universidad Rey Juan Carlos (URJC, Alcorcón, Spain
- High Performance Research Group in Physiopathology and Pharmacology of the Digestive System (NeuGut-URJC, URJC, Alcorcón, Spain
| | - Carlos Galvez-Robleño
- Department of Basic Health Sciences, Universidad Rey Juan Carlos (URJC, Alcorcón, Spain
- High Performance Research Group in Physiopathology and Pharmacology of the Digestive System (NeuGut-URJC, URJC, Alcorcón, Spain
| | - Raquel Abalo
- Department of Basic Health Sciences, Universidad Rey Juan Carlos (URJC, Alcorcón, Spain
- Unidad, Instituto de Química Médica (IQM, Consejo Superior de Investigaciones Científicas (CSIC, Asociada I+D+i del, Madrid, Spain
- High Performance Research Group in Physiopathology and Pharmacology of the Digestive System (NeuGut-URJC, URJC, Alcorcón, Spain
- Grupo de Trabajo de Ciencias Básicas en Dolor y Analgesia de la Sociedad Española del Dolor, Madrid, Spain
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Ribeiro FM, Petriz B, Marques G, Kamilla LH, Franco OL. Is There an Exercise-Intensity Threshold Capable of Avoiding the Leaky Gut? Front Nutr 2021; 8:627289. [PMID: 33763441 PMCID: PMC7982409 DOI: 10.3389/fnut.2021.627289] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2020] [Accepted: 02/10/2021] [Indexed: 12/16/2022] Open
Abstract
Endurance-sport athletes have a high incidence of gastrointestinal disorders, compromising performance and impacting overall health status. An increase in several proinflammatory cytokines and proteins (LPS, I-FABP, IL-6, IL-1β, TNF-α, IFN-γ, C-reactive protein) has been observed in ultramarathoners and triathlon athletes. One of the most common effects of this type of physical activity is the increase in intestinal permeability, known as leaky gut. The intestinal mucosa's degradation can be identified and analyzed by a series of molecular biomarkers, including the lactulose/rhamnose ratio, occludin and claudin (tight junctions), lipopolysaccharides, and I-FABP. Identifying the molecular mechanisms involved in the induction of leaky gut by physical exercise can assist in the determination of safe exercise thresholds for the preservation of the gastrointestinal tract. It was recently shown that 60 min of vigorous endurance training at 70% of the maximum work capacity led to the characteristic responses of leaky gut. It is believed that other factors may contribute to this effect, such as altitude, environmental temperature, fluid restriction, age and trainability. On the other hand, moderate physical training and dietary interventions such as probiotics and prebiotics can improve intestinal health and gut microbiota composition. This review seeks to discuss the molecular mechanisms involved in the intestinal mucosa's adaptation and response to exercise and discuss the role of the intestinal microbiota in mitigating these effects.
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Affiliation(s)
- Filipe M Ribeiro
- Post-graduation Program in Physical Education, Catholic University of Brasilia, Brasilia, Brazil.,Center for Proteomic and Biochemical Analysis, Post-graduation in Genomic and Biotechnology Sciences, Catholic University of Brasilia, Brasília, Brazil.,Laboratory of Molecular Exercise Physiology, University Center - UDF, Brasilia, Brazil
| | - Bernardo Petriz
- Center for Proteomic and Biochemical Analysis, Post-graduation in Genomic and Biotechnology Sciences, Catholic University of Brasilia, Brasília, Brazil.,Laboratory of Molecular Exercise Physiology, University Center - UDF, Brasilia, Brazil.,Postgraduate Program in Health Promotion, University of Franca (Unifran), São Paulo, Brazil
| | - Gabriel Marques
- Laboratory of Molecular Exercise Physiology, University Center - UDF, Brasilia, Brazil
| | - Lima H Kamilla
- Center for Proteomic and Biochemical Analysis, Post-graduation in Genomic and Biotechnology Sciences, Catholic University of Brasilia, Brasília, Brazil
| | - Octavio L Franco
- Post-graduation Program in Physical Education, Catholic University of Brasilia, Brasilia, Brazil.,Center for Proteomic and Biochemical Analysis, Post-graduation in Genomic and Biotechnology Sciences, Catholic University of Brasilia, Brasília, Brazil.,S-Inova Biotech, Catholic University Dom Bosco, Biotechnology Program, Campo Grande, Brazil
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Araujo LCC, Brito AF, Souza ILL, Ferreira PB, Vasconcelos LHC, Silva AS, Silva BA. Spirulina Platensis Supplementation Coupled to Strength Exercise Improves Redox Balance and Reduces Intestinal Contractile Reactivity in Rat Ileum. Mar Drugs 2020; 18:md18020089. [PMID: 32013202 PMCID: PMC7073603 DOI: 10.3390/md18020089] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Revised: 12/20/2019] [Accepted: 12/27/2019] [Indexed: 02/01/2023] Open
Abstract
The blue alga Spirulina platensis has presented several pharmacological activities, highlighting its actions as an anti-inflammatory and antioxidant. In addition, there are few studies with the influence of strength training on physiological parameters, as intestinal contractility and oxidative cell damage. We evaluated the influence of S. platensis supplementation, strength training, and its association on contractile reactivity of rat ileum, as well as the balance of oxidative stress/antioxidant defenses. Methods: Male Wistar rats were divided into; sedentary (S); S + supplemented with algae at 50 (S50), 150 (S150), and 500 mg/kg (S500); trained (T); and T + supplemented (T50, T150, and T500). Contractile reactivity was analyzed by kymographs; oxidative stress on ileum by the malondialdehyde (MDA) formation; and the antioxidant capacity by 2,2-diphenyl-1-picrylhydrazyl (DPPH) method. S. platensis supplementation reduced the reactivity of rat ileum to carbachol (CCh) and KCl, while training reduced only the CCh efficacy. In addition, association potentiated the reduction on contractile reactivity. Supplementation reduced the oxidative stress and increased oxidation inhibition; training alone did not alter this parameter, however association potentiated this beneficial effect. Therefore, this study demonstrated that both supplementation and its association with strength training promote beneficial effects regarding intestinal contractile reactivity and oxidative stress, providing new insights for intestinal disorders management.
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Affiliation(s)
- Layanne C. C. Araujo
- Programa de Pós-graduação em Ciências (Fisiologia Humana), Instituto de Ciências Biológicas, Universidade de São Paulo, Sao Paulo/SP 05508900, Brazil
| | - Aline F. Brito
- Escola de Educação Física, Universidade de Pernambuco, Recife/PE 50740-465, Brazil;
| | - Iara L. L. Souza
- Programa de Pós-graduação em Produtos Naturais e Sintéticos Bioativos, Centro de Ciências da Saúde, Universidade Federal da Paraíba, Joao Pessoa/PB, 58051900, Brazil; (I.L.L.S.); (P.B.F.); (L.H.C.V.)
| | - Paula B. Ferreira
- Programa de Pós-graduação em Produtos Naturais e Sintéticos Bioativos, Centro de Ciências da Saúde, Universidade Federal da Paraíba, Joao Pessoa/PB, 58051900, Brazil; (I.L.L.S.); (P.B.F.); (L.H.C.V.)
| | - Luiz Henrique C. Vasconcelos
- Programa de Pós-graduação em Produtos Naturais e Sintéticos Bioativos, Centro de Ciências da Saúde, Universidade Federal da Paraíba, Joao Pessoa/PB, 58051900, Brazil; (I.L.L.S.); (P.B.F.); (L.H.C.V.)
| | - Alexandre S. Silva
- Departamento de Educação Física, Centro de Ciências da Saúde, Universidade Federal da Paraíba, Joao Pessoa/PB 58051900, Brazil;
| | - Bagnólia A. Silva
- Programa de Pós-graduação em Ciências (Fisiologia Humana), Instituto de Ciências Biológicas, Universidade de São Paulo, Sao Paulo/SP 05508900, Brazil
- Programa de Pós-graduação em Produtos Naturais e Sintéticos Bioativos, Centro de Ciências da Saúde, Universidade Federal da Paraíba, Joao Pessoa/PB, 58051900, Brazil; (I.L.L.S.); (P.B.F.); (L.H.C.V.)
- Departamento de Ciências Farmacêuticas, Centro de Ciências da Saúde, Universidade Federal da Paraíba, Joao Pessoa/PB 58051900, Brazil
- Correspondence:
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Ünsal C, Ünsal H, Ekici M, Koç Yildirim E, Üner AG, Yildiz M, Güleş Ö, Ekren Aşici GS, Boyacioğlu M, Balkaya M, Belge F. The effects of exhaustive swimming and probiotic administration in trained rats: Oxidative balance of selected organs, colon morphology, and contractility. Physiol Int 2018; 105:309-324. [PMID: 30565473 DOI: 10.1556/2060.105.2018.4.25] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The duration and intensity of exercise are significant factors in oxidative, morphological, and functional changes of the gastrointestinal tract. This study aimed to investigate the effects of both exhaustive swimming and probiotic VSL#3 on rats that had been previously trained with moderate swimming. The rats were divided into four groups labeled: control (C), probiotic (P), exercise (E), and probiotic-exercise (PE). Groups P and PE were fed with probiotic mixture VSL#3. Groups E and PE had a 5-week moderate swimming program (1 h/day for 5 days/week), followed by a 1-week exhaustive swimming program (trained like in moderate program but 3 times with 150 min resting sessions, for 5 days/week). At the end of the program, the rats were euthanized. Malondialdehyde, superoxide dismutase, catalase, and reduced glutathione levels were measured in tissue samples from the gastrocnemius muscle, heart, liver, kidney, and colon. In vitro contractile activity and histomorphology of the colon were also determined. Exercise and/or probiotic decreased the oxidative stress and also increased the level of one or more of the antioxidant enzymes in some of the organs. Probiotics had more pronounced effects on colon morphology than exercise but unexpectedly this effect was non-trophic. In the colon, the thickness of the tunica muscularis and the number of goblet cells were not affected; however, probiotic administration decreased the crypt depth and tunica mucosa thickness. Exercise increased the Emax value of acetylcholine (ACh), while decreased its sensitivity. These findings suggest that exhaustive swimming does not cause oxidative stress and that probiotic consumption improves oxidative balance in trained rats. The probiotic intake does not alter the effect of exercise on the contractile activity of the colon. Colon mucosal changes induced by probiotics are independent of exercise.
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Affiliation(s)
- C Ünsal
- 1 Department of Physiology, Faculty of Veterinary Medicine, Adnan Menderes University , Aydin, Turkey
| | - H Ünsal
- 1 Department of Physiology, Faculty of Veterinary Medicine, Adnan Menderes University , Aydin, Turkey
| | - M Ekici
- 1 Department of Physiology, Faculty of Veterinary Medicine, Adnan Menderes University , Aydin, Turkey
| | - E Koç Yildirim
- 1 Department of Physiology, Faculty of Veterinary Medicine, Adnan Menderes University , Aydin, Turkey
| | - A G Üner
- 1 Department of Physiology, Faculty of Veterinary Medicine, Adnan Menderes University , Aydin, Turkey
| | - M Yildiz
- 2 Department of Occupational Health and Safety, Çan School of Applied Sciences, Çanakkale Onsekiz Mart University , Çanakkale, Turkey
| | - Ö Güleş
- 3 Department of Histology and Embryology, Faculty of Veterinary Medicine, Adnan Menderes University , Aydin, Turkey
| | - G S Ekren Aşici
- 4 Department of Biochemistry, Faculty of Veterinary Medicine, Adnan Menderes University , Aydin, Turkey
| | - M Boyacioğlu
- 5 Department of Pharmacology, Faculty of Veterinary Medicine, Adnan Menderes University , Aydin, Turkey
| | - M Balkaya
- 1 Department of Physiology, Faculty of Veterinary Medicine, Adnan Menderes University , Aydin, Turkey
| | - F Belge
- 1 Department of Physiology, Faculty of Veterinary Medicine, Adnan Menderes University , Aydin, Turkey
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de Souza ILL, Ferreira EDS, Diniz AFA, Carvalho MTDL, Queiroga FR, Toscano LT, Silva AS, da Silva PM, Cavalcante FDA, da Silva BA. Effects of Redox Disturbances on Intestinal Contractile Reactivity in Rats Fed with a Hypercaloric Diet. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2018; 2018:6364821. [PMID: 30498560 PMCID: PMC6222220 DOI: 10.1155/2018/6364821] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/23/2018] [Accepted: 09/27/2018] [Indexed: 12/20/2022]
Abstract
Few studies have associated the effects of changes in caloric intake and redox disturbances in the gastrointestinal tract. Therefore, the present study aimed at evaluating the hypercaloric diet consumption influence on the contractile reactivity of intestinal smooth muscle, morphology, and oxidative stress of rat ileum. Wistar rats were randomly divided into groups that received a standard diet and fed with a hypercaloric diet for 8 weeks. Animals were euthanized, and the ileum was isolated to isotonic contraction monitoring. Morphology was evaluated by histological staining and oxidative stress by quantification of malondialdehyde levels and total antioxidant activity. Cumulative concentration-response curves to KCl and carbachol were attenuated in rats fed with a hypercaloric diet compared to those that received a standard diet. In addition, an increase in caloric intake promotes a rise in the thickness of the longitudinal smooth muscle layer of rat ileum and tissue malondialdehyde levels, characterizing lipid peroxidation, as well as a decrease in the antioxidant activity. Thus, it was concluded that the consumption of a hypercaloric diet impairs rat intestinal contractility due to mechanisms involving modifications in the intestinal smooth muscle architecture triggered by redox disturbances.
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Affiliation(s)
- Iara L. L. de Souza
- Programa de Pós-graduação em Produtos Naturais e Sintéticos Bioativos, Centro de Ciências da Saúde, Universidade Federal da Paraíba, João Pessoa, PB, Brazil
- Departamento de Fisiologia e Patologia, Centro de Ciências da Saúde, Universidade Federal da Paraíba, João Pessoa, PB, Brazil
| | - Elba dos S. Ferreira
- Programa de Pós-graduação em Produtos Naturais e Sintéticos Bioativos, Centro de Ciências da Saúde, Universidade Federal da Paraíba, João Pessoa, PB, Brazil
| | - Anderson F. A. Diniz
- Programa de Pós-graduação em Produtos Naturais e Sintéticos Bioativos, Centro de Ciências da Saúde, Universidade Federal da Paraíba, João Pessoa, PB, Brazil
| | | | - Fernando R. Queiroga
- Programa de Pós-graduação em Produtos Naturais e Sintéticos Bioativos, Centro de Ciências da Saúde, Universidade Federal da Paraíba, João Pessoa, PB, Brazil
| | - Lydiane T. Toscano
- Departamento de Educação Física, Centro de Ciências da Saúde, Universidade Federal da Paraíba, João Pessoa, PB, Brazil
| | - Alexandre S. Silva
- Departamento de Educação Física, Centro de Ciências da Saúde, Universidade Federal da Paraíba, João Pessoa, PB, Brazil
| | - Patrícia M. da Silva
- Programa de Pós-graduação em Biologia Celular e Molecular, Centro de Ciências Exatas e da Natureza, Universidade Federal da Paraíba, João Pessoa, PB, Brazil
| | - Fabiana de A. Cavalcante
- Programa de Pós-graduação em Produtos Naturais e Sintéticos Bioativos, Centro de Ciências da Saúde, Universidade Federal da Paraíba, João Pessoa, PB, Brazil
- Departamento de Fisiologia e Patologia, Centro de Ciências da Saúde, Universidade Federal da Paraíba, João Pessoa, PB, Brazil
| | - Bagnólia A. da Silva
- Programa de Pós-graduação em Produtos Naturais e Sintéticos Bioativos, Centro de Ciências da Saúde, Universidade Federal da Paraíba, João Pessoa, PB, Brazil
- Departamento de Ciências Farmacêuticas, Centro de Ciências da Saúde, Universidade Federal da Paraíba, João Pessoa, PB, Brazil
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