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Souza GG, Santos SC, Santos CC, Dias AS, Silverio JM, Trovato VW, Flauzino DS. Arbuscular mycorrhizal fungi promote the growth of Dipteryx alata Vogel. BRAZ J BIOL 2023; 83:e275172. [PMID: 37909590 DOI: 10.1590/1519-6984.275172] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2023] [Accepted: 08/10/2023] [Indexed: 11/03/2023] Open
Abstract
The symbiosis between arbuscular mycorrhizal fungi (AMF) and fruit tree plants is a sustainable strategy for producing seedlings. However, information for Dipteryx alata Vogel., a native species, is still scarce. Thus, this study aimed to identify the most promising AMF inoculum for producing D. alata seedlings and their effects on growth. Seedlings were inoculated with Clareoideoglomus etunicatum, Gigaspora albida, Gigaspora margarita, a mixture of these three species, and an uninoculated control. Height, diameter, and chlorophyll index were evaluated at 30, 60, 90, 120, 150, and 180 days after seedling transplanting, while biomass production, quality index, dependence, and mycorrhizal efficiency were evaluated at 180 days. Greater diameter and height values were observed for D. alata seedlings at 180 days and inoculated with G. albida, G. margarita, and the mixture. AMF of the genus Gigaspora positively contributed to biomass production and seedling quality. D. alata seedlings show high mycorrhizal dependence on G. albida and G. margarita inoculum, which had good mycorrhizal efficiency. AMF, especially those of the genus Gigaspora, favor the production of high-quality D. alata seedlings.
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Affiliation(s)
- G G Souza
- Universidade do Estado de Santa Catarina - UDESC, Departamento de Ciência do Solo, Florianópolis, SC, Brasil
| | - S C Santos
- Universidade Federal da Grande Dourados - UFGD, Faculdade de Ciências Agrárias, Dourados, MS, Brasil
| | - C C Santos
- Universidade Federal da Grande Dourados - UFGD, Faculdade de Ciências Agrárias, Dourados, MS, Brasil
| | - A S Dias
- Universidade Federal da Grande Dourados - UFGD, Faculdade de Ciências Agrárias, Dourados, MS, Brasil
| | - J M Silverio
- Universidade Federal da Grande Dourados - UFGD, Faculdade de Ciências Agrárias, Dourados, MS, Brasil
| | - V W Trovato
- Universidade Federal da Grande Dourados - UFGD, Faculdade de Ciências Agrárias, Dourados, MS, Brasil
| | - D S Flauzino
- Serviço Nacional de Aprendizagem Rural - SENAR, Departamento de Hortifruti, Dourados, MS, Brasil
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Colares JR, Hartmann RM, Schemitt EG, Fonseca SRB, Brasil MS, Picada JN, Dias AS, Bueno AF, Marroni CA, Marroni NP. Melatonin prevents oxidative stress, inflammatory activity, and DNA damage in cirrhotic rats. World J Gastroenterol 2022; 28:348-364. [PMID: 35110954 PMCID: PMC8771613 DOI: 10.3748/wjg.v28.i3.348] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Revised: 06/24/2021] [Accepted: 01/10/2022] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Cirrhosis is an important health problem characterized by a significant change in liver parenchyma. In animals, this can be reproduced by an experimental model of bile duct ligation (BDL). Melatonin (MLT) is a physiological hormone synthesized from serotonin that has been studied for its beneficial properties, including its antioxidant potential.
AIM To evaluate MLT’s effects on oxidative stress, the inflammatory process, and DNA damage in an experimental model of secondary biliary cirrhosis.
METHODS Male Wistar rats were divided into 4 groups: Control (CO), CO + MLT, BDL, and BDL + MLT. MLT was administered (20 mg/kg) daily beginning on day 15 after biliary obstruction. On day 29 the animals were killed. Blood samples, liver tissue, and bone marrow were collected for further analysis.
RESULTS BDL caused changes in biochemical and histological parameters and markers of inflammatory process. Thiobarbituric acid (0.46 ± 0.01) reactive substance levels, superoxide dismutase activity (2.30 ± 0.07) and nitric oxide levels (2.48 ± 0.36) were significantly lower (P < 0.001) n the groups that received MLT. DNA damage was also lower (P < 0.001) in MLT-treated groups (171.6 ± 32.9) than the BDL-only group (295.5 ± 34.8). Tissue damage and the expression of nuclear factor kappa B, interleukin-1β, Nrf2, NQO1 and Hsp70 were significantly lower in animals treated with MLT (P < 0.001).
CONCLUSION When administered to rats with BDL-induced secondary biliary cirrhosis, MLT effectively restored the evaluated parameters.
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Affiliation(s)
- Josieli R Colares
- Medical Sciences Program, Universidade Federal do Rio Grande do Sul, Porto Alegre 90050-170, Brazil
| | - Renata M Hartmann
- Medical Sciences Program, Universidade Federal do Rio Grande do Sul, Porto Alegre 90050-170, Brazil
| | - Elizângela G Schemitt
- Medical Sciences Program, Universidade Federal do Rio Grande do Sul, Porto Alegre 90050-170, Brazil
| | - Sandielly R B Fonseca
- Medical Sciences Program, Universidade Federal do Rio Grande do Sul, Porto Alegre 90050-170, Brazil
| | - Marilda S Brasil
- Biological Sciences Program, Universidade Federal do Rio Grande do Sul, Porto Alegre 90050-170, Brazil
| | - Jaqueline N Picada
- Cellular and Molecular Biology Program, Lutheran University of Brazil (ULBRA), Canoas 92425-900, Brazil
| | - Alexandre S Dias
- Pneumological Sciences Program, Universidade Federal do Rio Grande do Sul, Porto Alegre 90050-170, Brazil
| | - Aline F Bueno
- Pneumological Sciences Program, Universidade Federal do Rio Grande do Sul, Porto Alegre 90050-170, Brazil
| | - Cláudio A Marroni
- Posgraduate Program in Hepatology, Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre 90050-170, Brazil
| | - Norma P Marroni
- Medical Sciences Program, Universidade Federal do Rio Grande do Sul, Porto Alegre 90050-170, Brazil
- Biological Sciences Program, Universidade Federal do Rio Grande do Sul, Porto Alegre 90050-170, Brazil
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Gerringer ME, Dias AS, von Hagel AA, Orr JW, Summers AP, Farina S. Habitat influences skeletal morphology and density in the snailfishes (family Liparidae). Front Zool 2021; 18:16. [PMID: 33863343 PMCID: PMC8052763 DOI: 10.1186/s12983-021-00399-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Accepted: 03/14/2021] [Indexed: 12/23/2022] Open
Abstract
We tested the hypothesis that deep-sea fishes have poorly mineralized bone relative to shallower-dwelling species using data from a single family that spans a large depth range. The family Liparidae (snailfishes, Cottiformes) has representatives across the entire habitable depth range for bony fishes (0 m-> 8000 m), making them an ideal model for studying depth-related trends in a confined phylogeny. We used micro-computed tomography (micro-CT) scanning to test three aspects of skeletal reduction in snailfishes (50 species) across a full range of habitat depths: 1) reduction of structural dimensions, 2) loss of skeletal elements, and 3) reduction in bone density. Using depth data from the literature, we found that with increasing depth, the length of the dentary, neurocranium, and suborbital bones decreases. The ventral suction disk decreases width with increasing maximum habitat depth and is lost entirely in some deeper-living taxa, though not all. Although visual declines in bone density in deeper-living taxa were evident across full skeletons, individual densities of the lower jaw, vertebra, suction disk, hypural plate, and otoliths did not significantly decline with any depth metric. However, pelagic and polar taxa tended to show lower density bones compared to other species in the family. We propose that skeletal reductions allow snailfishes to maintain neutral buoyancy at great depths in the water column, while supporting efficient feeding and locomotion strategies. These findings suggest that changes in skeletal structure are non-linear and are driven not only by hydrostatic pressure, but by other environmental factors and by evolutionary ancestry, calling the existing paradigm into question.
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Affiliation(s)
- M E Gerringer
- State University of New York at Geneseo, Geneseo, NY, 14454, USA.
| | - A S Dias
- Whitman College, Walla Walla, WA, 99362, USA
| | | | - J W Orr
- Alaska Fisheries Science Center, RACE Division, NOAA Fisheries, Seattle, WA, 98115, USA
| | - A P Summers
- Friday Harbor Labs, Biology and SAFS, University of Washington, Friday Harbor, WA, 98250, USA
| | - S Farina
- Howard University, Washington, DC, 20059, USA
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Rosa CGS, Schemitt EG, Hartmann RM, Colares JR, de Sousa JT, Bona S, Moreira AJ, Ostjen CA, Picada JN, Campani DP, Dias AS, Marroni NAP. Effect of therapeutic ultrasound on the quadriceps muscle injury in rats - evaluation of oxidative stress and inflammatory process. Am J Transl Res 2019; 11:6660-6671. [PMID: 31737216 PMCID: PMC6834491] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Accepted: 09/29/2019] [Indexed: 06/10/2023]
Abstract
Muscle injuries are frequent, both in sports and work, and may be caused by stretching, distension, repetitive effort or bruising. Such lesions can lead to the generation of free radicals, triggering oxidative stress and the release of some inflammatory mediators. Therapeutic ultrasound (UST) is one of the most used electrotherapy resources in the physiotherapist's clinical practice. Our aim was to evaluate the use of therapeutic ultrasound on oxidative stress and inflammatory process in an experimental model of single quadriceps muscle injury in Wistar rats. We used a total of 28 male rats, weighing between 250-300 grams, randomly divided into four groups. In the right quadriceps, a simple impact of contusion was induced by means of a press. The animals were submitted to a daily UST treatment for a total of seven consecutive applications for three minutes each, that started 24 hours after the trauma induction. The results in the Trauma + Therapeutic ultrasound group at TBARS levels and in the enzymatic activity of SOD and GPx presented a significant difference. In the histological analysis of the Trauma + Therapeutic ultrasound group presented a reorganization of the fiber's structure and a reduction of the presence of inflammatory infiltrate. In the results of the immunohistochemistry of iNOS, TNF-α and NF-κB in muscle tissue, we observed that the group treated with ultrasound showed a reduction in the expression of the proteins. The use of UST was effective in protecting muscle tissue from oxidative stress, inflammatory process and in the rearrangement of muscle fibers.
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Affiliation(s)
- Carlos Gustavo S Rosa
- Universidade Luterana do Brasil, ULBRA, Graduate Program in Cellular and Molecular Biology Applied to HealthBrasil
- Universidade Luterana do Brasil, Laboratory of Oxidative Stress and AntioxidantsBrasil
| | - Elizângela G Schemitt
- Universidade Federal do Rio Grande do Sul, UFRGS, Graduate Program in Medicine, Medical SciencesBrasil
- Universidade Luterana do Brasil, Laboratory of Oxidative Stress and AntioxidantsBrasil
- Hospital de Clínicas de Porto Alegre, HCPA, Laboratory of Experimental Hepatology and GastroenterologyBrasil
| | - Renata M Hartmann
- Universidade Federal do Rio Grande do Sul, UFRGS, Graduate Program in Medicine, Medical SciencesBrasil
- Universidade Luterana do Brasil, Laboratory of Oxidative Stress and AntioxidantsBrasil
- Hospital de Clínicas de Porto Alegre, HCPA, Laboratory of Experimental Hepatology and GastroenterologyBrasil
| | - Josieli R Colares
- Universidade Federal do Rio Grande do Sul, UFRGS, Graduate Program in Medicine, Medical SciencesBrasil
- Universidade Luterana do Brasil, Laboratory of Oxidative Stress and AntioxidantsBrasil
- Hospital de Clínicas de Porto Alegre, HCPA, Laboratory of Experimental Hepatology and GastroenterologyBrasil
| | - Jayne T de Sousa
- Universidade Luterana do Brasil, Laboratory of Oxidative Stress and AntioxidantsBrasil
| | - Silvia Bona
- Universidade Federal do Rio Grande do Sul, UFRGS, Graduate Program in Medicine, Medical SciencesBrasil
- Universidade Luterana do Brasil, Laboratory of Oxidative Stress and AntioxidantsBrasil
- Hospital de Clínicas de Porto Alegre, HCPA, Laboratory of Experimental Hepatology and GastroenterologyBrasil
| | - Andrea J Moreira
- Universidade Luterana do Brasil, Laboratory of Oxidative Stress and AntioxidantsBrasil
- Hospital de Clínicas de Porto Alegre, HCPA, Laboratory of Experimental Hepatology and GastroenterologyBrasil
- Centro Universitário Metodista, IPA, Department of PhysiotherapyBrasil
| | | | - Jaqueline N Picada
- Universidade Luterana do Brasil, ULBRA, Graduate Program in Cellular and Molecular Biology Applied to HealthBrasil
| | - Daniel P Campani
- Centro Universitário Metodista, IPA, Department of PhysiotherapyBrasil
| | - Alexandre S Dias
- Hospital de Clínicas de Porto Alegre, HCPA, Laboratory of Experimental Hepatology and GastroenterologyBrasil
- Hospital de Clínicas de Porto Alegre, HCPA, Physiotherapy ServiceBrasil
| | - Norma Anair P Marroni
- Universidade Federal do Rio Grande do Sul, UFRGS, Graduate Program in Medicine, Medical SciencesBrasil
- Hospital de Clínicas de Porto Alegre, HCPA, Laboratory of Experimental Hepatology and GastroenterologyBrasil
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Bona S, Rodrigues G, Moreira AJ, Di Naso FC, Dias AS, Da Silveira TR, Marroni CA, Marroni NP. Antifibrogenic effect of melatonin in rats with experimental liver cirrhosis induced by carbon tetrachloride. JGH Open 2018; 2:117-123. [PMID: 30483575 PMCID: PMC6206983 DOI: 10.1002/jgh3.12055] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Revised: 02/26/2018] [Accepted: 04/02/2018] [Indexed: 12/18/2022]
Abstract
Background and Aim Liver diseases are a major public health problem, accounting for a significant number of hospital visits and admissions and an increasing mortality rate. Melatonin (MLT) is a powerful antioxidant molecule that has been shown to be beneficial under various conditions. The objective was to evaluate the effect of MLT on experimental liver cirrhosis induced by carbon tetrachloride (CCl4) in rats. Methods Twenty male Wistar rats (230–250 g) were divided into four groups. I: control group (CO); II: CO + MLT; III: CCl4; and IV: CCl4 + MLT. CCl4 was administered intraperitoneally (i.p.) as follows: 10 doses every 5 days, 10 doses every 4 days, and 7 doses every 3 days. MLT was administered i.p. at a dose of 20 mg/kg from the 10th week to the end of the experiment (16th week). Results In the CCl4 + MLT group, we found that MLT caused a decrease in the level of F2‐isoprostanes and NQO1 expression. We also found that MLT reduced the inflammatory process as shown by decreased expressions of NF‐KB/p65 and inducible nitric oxide synthase (iNOS) and a smaller amount of inflammatory infiltrate. MLT reduced the expression of transforming growth factor beta1 (TGF‐β1), alpha‐smooth muscle actin (α‐SMA), and vascular endothelial growth factor (VEGF). Picrosirius staining showed that MLT decreases fibrosis. Conclusion MLT has a potent antifibrogenic effect, modulating the parameters of oxidative stress, angiogenesis, and inflammation.
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Affiliation(s)
- Silvia Bona
- Center of Experimental Research Hospital de Clínicas de Porto Alegre Porto Alegre RS Brazil.,Postgraduate Program in Medical Sciences: Medicine Universidade Federal do Rio Grande do Sul Porto Alegre RS Brazil
| | - Graziella Rodrigues
- Center of Experimental Research Hospital de Clínicas de Porto Alegre Porto Alegre RS Brazil.,Postgraduate Program in Medical Sciences: Medicine Universidade Federal do Rio Grande do Sul Porto Alegre RS Brazil
| | - Andrea J Moreira
- Center of Experimental Research Hospital de Clínicas de Porto Alegre Porto Alegre RS Brazil.,Postgraduate Program in Biological Sciences: Physiology Universidade Federal do Rio Grande do Sul Porto Alegre RS Brazil
| | - Fábio C Di Naso
- Center of Experimental Research Hospital de Clínicas de Porto Alegre Porto Alegre RS Brazil.,Postgraduate Program in Pneumological Sciences Universidade Federal do Rio Grande do Sul Porto Alegre RS Brazil
| | - Alexandre S Dias
- Postgraduate Program in Pneumological Sciences Universidade Federal do Rio Grande do Sul Porto Alegre RS Brazil
| | - Thêmis R Da Silveira
- Center of Experimental Research Hospital de Clínicas de Porto Alegre Porto Alegre RS Brazil
| | - Claudio A Marroni
- Center of Experimental Research Hospital de Clínicas de Porto Alegre Porto Alegre RS Brazil.,Postgraduate Program in Liver Diseases Universidade Federal de Ciências da Saúde de Porto Alegre Porto Alegre RS Brazil
| | - Norma P Marroni
- Center of Experimental Research Hospital de Clínicas de Porto Alegre Porto Alegre RS Brazil.,Postgraduate Program in Medical Sciences: Medicine Universidade Federal do Rio Grande do Sul Porto Alegre RS Brazil.,Postgraduate Program in Biological Sciences: Physiology Universidade Federal do Rio Grande do Sul Porto Alegre RS Brazil.,Postgraduate Program in Cell and Molecular Biology Applied to Health Universidade Luterana do Brasil Canoas RS Brazil
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Coutinho WM, Vieira PJC, Kutchak FM, Dias AS, Rieder MM, Forgiarini LA. Comparison of Mechanical Insufflation-Exsufflation and Endotracheal Suctioning in Mechanically Ventilated Patients: Effects on Respiratory Mechanics, Hemodynamics, and Volume of Secretions. Indian J Crit Care Med 2018; 22:485-490. [PMID: 30111922 PMCID: PMC6069318 DOI: 10.4103/ijccm.ijccm_164_18] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Context: Cough assist (CA) is a device to improve bronchial hygiene of patients with secretion in the airways and ineffective cough. Aims: To compare the physiological effects and the volume of secretion of mechanical insufflation–exsufflation (CA device) with isolated endotracheal suctioning in mechanically ventilated patients. Settings and Design: Randomized crossover trial. Materials and Methods: The patients were randomly allocated to the first technique, then the following technique was performed in the next day. We collected the variables related to oxygen saturation, hemodynamics (heart rate, systolic blood pressure, diastolic blood pressure, and mean arterial pressure [MAP]), and respiratory mechanics (tidal volume, minute volume, respiratory rate, and lung compliance and resistance), pre- and postimplementation (immediately and after 15 and 30 min), and the aspirated volume of secretion. Statistical Analysis Used: We used two-way analysis of variance followed by the Student–Newman–Keuls t-test to compare the variables at different time points. Student's t-test was used to compare secretion volumes. All data were stored and analyzed in SPSS for Windows Version 19.0. The significance level was set at 5%. Results: Forty-three patients were included in the study. When we compared the results before and after the application of the techniques, we observed no significant difference in lung compliance, pulmonary resistance, MAP, peripheral oxygen saturation, and secretion volume in both groups. Conclusions: The mechanical insufflation–exsufflation does not alter respiratory mechanics and hemodynamic stability, and it does not improve airway clearance in mechanically ventilated patients.
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Affiliation(s)
| | - Paulo J C Vieira
- Cristo Redentor Hospital, Intensive Care Unit, Porto Alegre, Brazil
| | - Fernanda M Kutchak
- Cristo Redentor Hospital, Intensive Care Unit, Porto Alegre, Brazil.,Unisinos University, Physiotherapy Course, Porto Alegre, Brazil
| | - Alexandre S Dias
- Clinicas Hospital (HCPA), Federal University of Rio grande do Sul, Course of Physiotherapy, Postgraduate Program in Pneumology and Human Sciences Movement, Porto Alegre, Brazil
| | - Marcelo M Rieder
- Cristo Redentor Hospital, Intensive Care Unit, Porto Alegre, Brazil
| | - Luiz Alberto Forgiarini
- Methodist University IPA, Course of Physiotherapy Postgraduate Program in Rehabilitation and Inclusion, and Postgraduate Program in Biosciences and Rehabilitation, Porto Alegre, Brazil
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Dall' Acqua AM, Sachetti A, Santos LJ, Lemos FA, Bianchi T, Naue WS, Dias AS, Sbruzzi G, Vieira SRR. Use of neuromuscular electrical stimulation to preserve the thickness of abdominal and chest muscles of critically ill patients: A randomized clinical trial. J Rehabil Med 2017; 49:40-48. [PMID: 28101565 DOI: 10.2340/16501977-2168] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
OBJECTIVE To evaluate and compare the effects of neuromuscular electrical stimulation combined with conventional physical therapy on muscle thickness in critically ill patients. DESIGN Double-blind, randomized controlled trial. PATIENTS Twenty-five patients participated in the study. METHODS Patients on mechanical ventilation for 24-48 h were randomized to an intervention group (neuromuscular electrical stimulation + conventional physical therapy) or a conventional group (sham neuromuscular electrical stimulation + conventional physical therapy). Primary outcome was thickness of the rectus abdominis and chest muscles, determined on cross-sectional ultrasound images before and after the intervention. RESULTS Eleven patients were included in the intervention group and 14 in the conventional group. After neuromuscular electrical stimulation, rectus abdominis muscle thickness and chest muscle thickness were preserved in the intervention group, whereas there was a significant reduction in thickness in the conventional group, with a significant difference between groups. There was a significant difference between groups in length of stay in the intensive care unit, with shorter length of stay in the intervention group. CONCLUSION There was no change in rectus abdominis and chest muscle thickness in the intervention group. A significant decrease was found in these measures in the conventional group.
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Santos LJ, Lemos FA, Bianchi T, Sachetti A, Dall' Acqua AM, Naue WS, Dias AS, Vieira SR. Early ambulation using a cycle ergometer on quadriceps muscle morphology in mechanically ventilated critically ILL patients in the intensive care unit: a randomized controlled trial. Intensive Care Med Exp 2015. [PMCID: PMC4798335 DOI: 10.1186/2197-425x-3-s1-a551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Santos LJ, Dall' Acqua AM, Sachetti A, Lemos FA, Bianchi T, Naue WS, Sbruzzi G, Dias AS, Vieira SR. Use of electrical neuromuscular stimulation to preserve the morphology of abdominal and chest muscles of critical patients: randomized clinical trial. Intensive Care Med Exp 2015. [PMCID: PMC4796860 DOI: 10.1186/2197-425x-3-s1-a552] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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Damascena NP, Souza MTS, Almeida AF, Cunha RS, Damascena NP, Curvello RL, Lima ACB, Almeida ECV, Santos CCS, Dias AS, Paixão MS, Souza LMA, Quintans Júnior LJ, Estevam CS, Araujo BS. Antioxidant and orofacial anti-nociceptive activities of the stem bark aqueous extract of Anadenanthera colubrina (Velloso) Brenan (Fabaceae). Nat Prod Res 2014; 28:753-6. [PMID: 24438027 DOI: 10.1080/14786419.2013.877902] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [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: 10/25/2022]
Abstract
The anti-nociceptive and antioxidant activities of the Anadenantheracolubrina stem bark aqueous extract (AEAC) were investigated. AEAC (30 μg/mL) reduced 94.8% of 2,2-diphenyl-1-picrylhydrazyl radical and prevented 64% (200 μg/mL) of lipid peroxidation caused by 2,2'-azobis(2-methylpropionamidine) dihydrochloride-induced peroxyl radicals. AEAC treatment (200 and 400 mg/kg) significantly (p < 0.001) reduced mice orofacial nociception in the first (61.4% and 62.6%, respectively) and second (48.9% and 61.9%, respectively) phases of the formalin test. Nociception caused by glutamate was significantly (p < 0.001) reduced by up to 79% at 400 mg/kg, while 56-60% of the nociceptive behaviour induced by capsaicin was significantly inhibited by AEAC (100-400 mg/kg). Mice treated with AEAC did not show changes in motor performance in the Rota-rod apparatus. It appears that AEAC is of pharmacological importance in treating pain due to its anti-nociceptive effects, which were shown to be mediated by central and peripheral mechanisms.
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Affiliation(s)
- N P Damascena
- a Department of Physiology , Federal University of Sergipe , São Cristovão , SE , Brazil
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Paixão MS, Melo MS, Oliveira MGB, Santana MT, Lima ACB, Damascena NP, Dias AS, Araujo BS, Estevam CS, Botelho MA, Quintans LJ. Hyptis pectinata: redox protection and orofacial antinociception. Phytother Res 2012; 27:1328-33. [PMID: 23132789 DOI: 10.1002/ptr.4869] [Citation(s) in RCA: 21] [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] [Subscribe] [Scholar Register] [Received: 06/22/2012] [Revised: 09/23/2012] [Accepted: 10/02/2012] [Indexed: 01/12/2023]
Abstract
Hyptis pectinata L. Poit, known as 'sambacaitá', is used in Brazil to treat inflammatory and painful disorders. In this study, the antioxidant and orofacial antinociceptive properties of the aqueous extract of H. pectinata leaves (AEPH) were assessed using in vitro and in vivo models. Thus, AEPH reduced the 2,2-diphenyl-1-picrylhydrazyl radical up to 72.10% with an EC₅₀ of 14.56 µg/ml. It also inhibited 40.80% of the lipoperoxidation induced by 2'-azobis (2-amidinopropane) dihydrochloride in the thiobarbituric acid-reactive substances assay. The orofacial antinociceptive activity was evaluated in mice pre-treated with AEPH (100, 200 and 400 mg/kg, p.o.) and morphine (5 mg/kg, i.p.), which received afterwards formalin- (20 µl, 2% solution, s.c.), glutamate- (40 µl, 25 mM, s.c.) and capsaicin- (20 µl, 2.5 µg, s.c.) to induce orofacial nociception. AEPH at all doses reduced (p < 0.001) the nociceptive response in the first (43-62%) and second (47-80%) phases of the formalin test. Besides, the effect of AEPH (400 mg/kg) was not changed in the presence of naloxone (1.5 mg/kg, i.p.), an opioid antagonist. AEPH significantly inhibited mice face rubbing for capsaicin (23-69%, p < 0.05) and glutamate (48-77%, p < 0.001) at all doses. The findings suggested the AEPH has peripheral and central antinociceptive activities, which are not related to opioid receptors.
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Affiliation(s)
- M S Paixão
- Departamento de Fisiologia, Universidade Federal de Sergipe-DFS/UFS, São Cristóvão, SE, Brazil.
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Dias AS, Lima ACB, Santos ALML, Rabelo TK, Serafini MR, Andrade CR, Fernandes XA, Moreira JCF, Gelain DP, Estevam CS, Araujo BS. Redox properties of Abarema cochliacarpos (Gomes) Barneby & Grime (Fabaceae) stem bark ethanol extract and fractions. Nat Prod Res 2012; 27:1479-83. [PMID: 22963455 DOI: 10.1080/14786419.2012.722083] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
The redox properties of the hydroethanol extract (EE) and its ethyl acetate (EAF) and hydromethanol (HMF) fractions obtained from Abarema cochliacarpos (Gomes) Barneby & Grimes stem bark were evaluated. EAF had the highest total phenol content (848.62 ± 78.18 mg g⁻¹), while EE showed the highest content of catechin (71.2 µg g⁻¹). EE, EAF and HMF exhibited the highest levels of antioxidant activity at 100 and 1000 µg mL⁻¹ when the non-enzymatic antioxidant potential was evaluated by the total reactive antioxidant potential, total antioxidant reactivity and nitric oxide scavenging assays. In addition, EAF and HMF showed SOD-like activity. The results for EE, EAF and HMF in this study showed that A. cochliacarpos (Gomes) Barneby & Grimes stem bark have redox properties and may be able to help the endogenous enzymatic and non-enzymatic systems to keep the redox balance.
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Affiliation(s)
- A S Dias
- a Department of Physiology , Federal University of Sergipe, UFS , São Cristovão , Brazil
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Abstract
BACKGROUND Liver diseases are responsible for metabolic disorders and loss of muscle mass and function that affect functional status and quality of life (QoL). OBJECTIVE To compare exercise capacity, respiratory muscle strength, and QoL in liver transplant candidates with cirrhosis of the following etiologies: hepatitis C virus (HCV), hepatitis B virus (HBV), and alcoholic cirrhosis (AC). METHODS Cross-sectional study comprising 86 patients divided into three groups: HCV (40 patients), HBV (14 patients), and AC (32 patients). Patients were evaluated using the Six-Minute Walk Test (6MWT), manometry, and the QoL questionnaire SF-36. RESULTS The AC group showed the lowest performance in the 6MWT (meters) compared to the HBV and HCV groups (373.50 ± 50.48, 464.16 ± 32, and 475.94 ± 27.84, respectively, p=0.001). In the domains of the SF-36, the AC group had lower scores for functional capacity and physical limitations when compared to the HBV and HCV groups (p=0.001). In the comparison of respiratory muscle strength, the AC group had lower MIP (cmH2O) compared to the HBV and HCV groups (-65.54 ± 11.28, -71.61 ± 6.96, -82.44 ± 13.71, respectively, p=0.001). The MEP (cmH2O) in the AC group was also lower than in the HBV and HCV groups (65.13 ± 10.74, 82.44 ± 13.87, 83.44 ± 12.20, respectively, p=0.001). CONCLUSION The AC group showed worse exercise capacity, respiratory muscle strength, and QoL compared to patients with HCV and HBV.
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Affiliation(s)
- Lucas H Galant
- Departamento de Hepatologia, Universidade Federal de Ciências da Saúde de Porto Alegre, RS, Brasil.
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Galant LH, Ferrari R, Forgiarini LA, Monteiro MB, Marroni CA, Dias AS. Relationship between MELD severity score and the distance walked and respiratory muscle strength in candidates for liver transplantation. Transplant Proc 2010; 42:1729-30. [PMID: 20620511 DOI: 10.1016/j.transproceed.2010.02.087] [Citation(s) in RCA: 17] [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] [Received: 09/28/2009] [Revised: 12/29/2009] [Accepted: 02/26/2010] [Indexed: 12/31/2022]
Abstract
The model end-stage liver disease (MELD) severity scoring system is used in the allocation of organs for liver transplantation. However, there is no evidence of its relationship with the functionality and respiratory muscle strength in these patients. The aim of this study was to analyze the correlation of MELD with distance walked and respiratory muscle strength in patients awaiting liver transplantation. We performed a cross-sectional analysis of 24 individuals (16 male and 8 female) with mean age of 51.8 +/- 10.4 years. The MELD score inversely correlated with the 6-minute walking test (6MWT) (r = -0.85; P < .001) and with the maximal inspiratory pressure (MIP) (r = -0.69; P < .001). In addition, there was a correlation between 6MWT and MIP (r = 0.77; P < .001). Thus, MELD scores can be considered to be effective tools to predict the functional capacity and respiratory muscle strength in candidates for liver transplantation.
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Affiliation(s)
- L H Galant
- Federal University of Rio Grande do Sul, Porto Alegre, Brazil
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15
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Almeida-Gomes M, Almeida-Santos M, Goyannes-Araújo P, Borges-Júnior VNT, Vrcibradic D, Siqueira CC, Ariani CV, Dias AS, Souza VV, Pinto RR, Van Sluys M, Rocha CFD. Anurofauna of an Atlantic Rainforest fragment and its surroundings in Northern Rio de Janeiro State, Brazil. BRAZ J BIOL 2010; 70:871-7. [DOI: 10.1590/s1519-69842010000400018] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2009] [Accepted: 10/19/2009] [Indexed: 11/22/2022] Open
Abstract
We carried out a study on the anurofaunal community from an Atlantic Forest fragment (Monte Verde mountains) and the surrounding area in Cambuci municipality, Rio de Janeiro State, Brazil, which constitutes one of the largest fragments remaining in the largely deforested landscape of the northern portion of the State. We combined three sampling methods: plot sampling, transects and pit-fall traps. We recorded twenty species of amphibians, of which only eleven were found within the forest fragment (and five of these also occurred in the surrounding matrix). Two of the species recorded in the present study (Crossodactylus sp. and Ischnocnema cf. parva) may represent undescribed taxa. Our records expand the distribution range of one species (Scinax trapicheiroi) to the north, and fill a geographic distribution gap for another one (Ischnocnema oea). The estimated overall density of frogs living in the leaf litter of the fragment (based on results of plot sampling) was 3.1 individuals/100 m², with Haddadus binotatus being the most abundant species (2.4 individuals/100 m²). Comparisons of our data with those of other studies suggest that anuran communities in forest fragments ca. 1,000 ha or smaller may be severely limited in their richness, and often include a large proportion of species tolerant to open areas, such as many hylids. Our results show the importance of increasing knowledge about the anurofaunal community of the northern portion of the State of Rio de Janeiro and preserve the forest remnants that still exist in the region.
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Affiliation(s)
| | | | | | | | - D Vrcibradic
- Universidade do Estado do Rio de Janeiro, Brazil
| | - CC Siqueira
- Universidade do Estado do Rio de Janeiro, Brazil; Universidade Federal do Rio de Janeiro
| | - CV Ariani
- Universidade do Estado do Rio de Janeiro, Brazil
| | - AS Dias
- Universidade do Estado do Rio de Janeiro, Brazil
| | - VV Souza
- Universidade do Estado do Rio de Janeiro, Brazil
| | - RR Pinto
- Universidade Federal do Rio de Janeiro, Brazil
| | - M Van Sluys
- Universidade do Estado do Rio de Janeiro, Brazil
| | - CFD Rocha
- Universidade do Estado do Rio de Janeiro, Brazil
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Berger BR, Galant LR, Machado NC, Silva LC, Monteiro MB, Dias AS, Belló-Klein A, Souza-Rabbo MP. Peripheral Oxidative Stress Markers and Six Minutes Walking Test Performance in COPD Patients. Med Sci Sports Exerc 2010. [DOI: 10.1249/01.mss.0000385156.05216.19] [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: 11/21/2022]
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Tieppo J, Vercelino R, Dias AS, Silva Vaz MF, Silveira TR, Marroni CA, Marroni NP, Henriques JAP, Picada JN. Evaluation of the protective effects of quercetin in the hepatopulmonary syndrome. Food Chem Toxicol 2007; 45:1140-6. [PMID: 17306429 DOI: 10.1016/j.fct.2006.12.020] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2006] [Revised: 12/18/2006] [Accepted: 12/25/2006] [Indexed: 11/21/2022]
Abstract
The hepatopulmonary syndrome (HPS) occurs when intrapulmonary dilatation causes hypoxemia in cirrhosis. The free radicals may play a significant contributory role in the progression of HPS, and flavonoid agents could protect against deleterious effects of free radicals. The flavonoid quercetin was evaluated in an experimental model of biliary cirrhosis induced by bile duct ligation (BDL) in rats. Quercetin was administered at 50mg/kg for 14 days to cirrhotic and non-cirrhotic rats. Bone marrow was extracted from animals to analyze micronuclei. Lung, liver and blood were extracted to detect DNA damage using the comet assay. The results showed that the micronuclei and DNA damages to lung and liver were increased in BDL rats. Quercetin caused no damage to the DNA while decreasing the occurrence of micronucleated cells in bone marrow as well as DNA damage to lung and liver in cirrhotic rats. Quercetin showed antimutagenic activity against hydroperoxides as evaluated by the oxidative stress sensitive bacterial strains TA102 Salmonella typhimurium and IC203 Escherichia coli, suggesting protection by free radical scavenging. In Saccharomyces cerevisie yeast strains lacking mitochondrial or cytosolic superoxide dismutase, these results indicate that quercetin protects cells by induction of antioxidant enzymes. The present study is the first report of genotoxic/antigenotoxic effects of quercetin in a model of animal cirrhosis. In this model, quercetin was not able to induce genotoxicity and, conversely, it increased the genomic stability in the cirrhotic rats, suggesting beneficial effects, probably by its antioxidant properties.
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Affiliation(s)
- J Tieppo
- Hospital de Clínicas de Porto Alegre, HCPA/Universidade Federal do Rio Grande do Sul, UFRGS, 90035-903, Laboratório de Hepatologia Experimental, Fisiologia, Ramiro Barcelos, 2350 Porto Alegre, RS, Brazil
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Reichenheim ME, Dias AS, Moraes CL. Co-ocorrência de violência física conjugal e contra filhos em serviços de saúde. Rev Saude Publica 2006. [DOI: 10.1590/s0034-8910200800060001100013] [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: 11/21/2022] Open
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Abstract
Dysplasia and cancer of the cervix may be related to human papillomavirus infection. To determine the presence of cancer in cases of genital warts we have been using a technique, androscopy, for examining male genitals with magnified lens previously sprayed with white vinegar (5% acetic acid). This paper explores the methods of using colposcopy and androscopy on both sexual partners for a thorough examination of genitals and the anorectal area. It also discusses treatment advantages of the CO2 laser. In our investigation plain, pedunculated warts and a giant condyloma (Buschke-Loewenstein tumor) were found and treated with CO2 laser surgery.
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