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Rezende MS, Silva NL, Oliveira JA, Silva DN, Santos DMD, Santos JTCD, Araújo AAS, Martins-Filho PRS, Quintans-Júnior LJ, Schimieguel DM. ANÁLISE DA RESPOSTA IMUNOLÓGICA CELULAR EM IDOSOS APÓS VACINAÇÃO COM CORONAVAC. Hematol Transfus Cell Ther 2022. [DOI: 10.1016/j.htct.2022.09.1170] [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: 11/07/2022] Open
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Santos JTCD, Rezende MS, Silva NL, Prates LS, Santos DMD, Cavalcante RCM, Quintans-Júnior LJ, Araújo AAS, Martins-Filho PRS, Schimieguel DM. AVALIAÇÃO DA RESPOSTA IMUNOLÓGICA EM IDOSOS INSTITUCIONALIZADOS APÓS IMUNIZAÇÃO CONTRA A COVID-19. Hematol Transfus Cell Ther 2022. [DOI: 10.1016/j.htct.2022.09.1168] [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] Open
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Rhana P, Barros GM, Santos VCDO, Costa AD, Santos DMD, Fernandes-Braga W, Durço AO, Santos MRV, Roman-Campos D, Vasconcelos CMLD, Cruz JS, Souza DS. S-limonene protects the heart in an experimental model of myocardial infarction induced by isoproterenol: Possible involvement of mitochondrial reactive oxygen species. Eur J Pharmacol 2022; 930:175134. [PMID: 35843301 DOI: 10.1016/j.ejphar.2022.175134] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Revised: 06/19/2022] [Accepted: 06/30/2022] [Indexed: 11/03/2022]
Abstract
BACKGROUND Myocardial infarction (MI) is associated with high mortality rates, despite the fact that there are therapies available. Importantly, excessive oxidative stress may contribute to ischemia/reperfusion injury leading to death related to MI. In this scenario, naturally occurring antioxidant compounds are an important source of possible therapeutic intervention. Thus, this study sought to elucidate the mechanisms of cardioprotection of s-limonene in an isoproterenol-induced MI animal model. METHODS Wistar rats were treated with 1 mg/kg s-limonene (SL) or 100 mg/kg N-acetylcysteine (NAC, positive control) once, 30 min after isoproterenol-induced MI (applied in two doses with a 24 h interval). The protective effects of SL in the heart were examined via the serum level of creatine kinase myocardial band (CK-MB), electrocardiographic profile, infarct size and histological parameters. Using isolated cardiomyocytes, we also assessed calcium transient amplitude, cytosolic and mitochondrial oxidative stress and the expression of proteins related to oxidative stress. RESULTS SL at a concentration of 1 mg/kg attenuated isoproterenol-induced MI injury, by preventing ST-segment elevation and QTc prolongation in the ECG. SL reduced the infarct size and collagen content in cardiac tissue. At the cellular level, SL prevented increased Ca2+, associated with attenuation of cytosolic and mitochondrial oxidative stress. These changes resulted in a reduction of the oxidized form of Ca2+ Calmodulin-Dependent Kinase II (CaMKII) and restored superoxide dismutase and glutathione peroxidase activity. CONCLUSION Our data show that s-limonene promotes cardioprotection against MI injury, probably through inhibition of increased Ca2+ and attenuation of oxidative stress via CaMKII.
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Affiliation(s)
- Paula Rhana
- Department of Physiology and Membrane Biology, University of California Davis, Davis, USA; Department of Biochemistry and Immunology, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | | | | | - Alexandre Dantas Costa
- Department of Physiology and Biophysics, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Danillo Menezes Dos Santos
- Department of Physiology, Federal University of Sergipe, São Cristóvão, Brazil; Health Science Graduate Program, Federal University of Sergipe, Aracaju, Brazil
| | - Weslley Fernandes-Braga
- Department of Biochemistry and Immunology, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Aimée Obolari Durço
- Department of Physiology, Federal University of Sergipe, São Cristóvão, Brazil; Health Science Graduate Program, Federal University of Sergipe, Aracaju, Brazil
| | - Márcio Roberto Viana Santos
- Department of Physiology, Federal University of Sergipe, São Cristóvão, Brazil; Health Science Graduate Program, Federal University of Sergipe, Aracaju, Brazil
| | - Danilo Roman-Campos
- Department of Biophysics, Federal University of São Paulo, São Paulo, Brazil
| | | | - Jader Santos Cruz
- Department of Biochemistry and Immunology, Federal University of Minas Gerais, Belo Horizonte, Brazil.
| | - Diego Santos Souza
- Department of Biophysics, Federal University of São Paulo, São Paulo, Brazil.
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de Araújo Andrade T, Heimfarth L, Dos Santos DM, Dos Santos MRV, de Albuquerque-Júnior RLC, Dos Santos-Neto AG, de Araujo GRS, Lira AAM, Matos SS, Frank LA, Rabelo TK, Quintans-Júnior LJ, de Souza Siqueira Quintans J, de Souza Araujo AA, Serafini MR. Hesperetin-Based Hydrogels Protect the Skin against UV Radiation-Induced Damage. AAPS PharmSciTech 2022; 23:170. [PMID: 35729366 DOI: 10.1208/s12249-022-02323-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [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: 02/24/2022] [Accepted: 06/07/2022] [Indexed: 11/30/2022] Open
Abstract
UV radiation can cause damages, such as erythema, skin photoaging, and carcinogenesis. The adoption of protective measures against sun exposure is essential to prevent these damages, and the interest in using natural substances as an alternative for photoprotection is growing. Thus, hesperetin with antioxidant, anti-inflammatory, and anticancer properties is a promising substance to be used with photochemopreventive action and to protect the skin from damage induced by UV radiation. Therefore, the present study aimed to develop a topical formulation based on AAMVPC gel containing hesperetin and evaluate its photoprotective effect on the skin of rats exposed to UVA-UVB radiation. The animals were submitted to the irradiation protocol UVA-UVB, and at the end, erythema, lipid peroxidation, and activity of the antioxidant enzyme catalase and superoxide dismutase were evaluated. Additionally, it evaluated the activity of myeloperoxidase and histological changes. The formulation presented a rheological and spreadability profile suitable for cutaneous application. In vivo results demonstrated that the topical formulation of AAMVPC gel containing hesperetin at a concentration of 10% protected the skin from damage induced by UVA-UVB radiation, with the absence of erythema, lipid lipoperoxidation, and inflammation (low myeloperoxidase activity), and increased catalase and superoxide dismutase activities. The morphology and architecture of the dermo-epidermal tissue of these animals were like those observed under normal conditions (non-irradiated animals). Thus, the results showed that hesperetin was able to protect the animals' skin against UV radiation-induced skin damage and the protection mechanisms may be related to the antioxidant and anti-inflammatory properties of this natural product.
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Affiliation(s)
| | - Luana Heimfarth
- Departamento de Fisiologia, Universidade Federal de Sergipe, São Cristóvão, Sergipe, Brasil
| | - Danillo Menezes Dos Santos
- Departamento de Fisiologia, Universidade Federal de Sergipe, São Cristóvão, Sergipe, Brasil.,Health Sciences Graduate Program, Universidade Federal de Sergipe, Aracaju, Sergipe, Brasil
| | - Márcio Roberto Viana Dos Santos
- Departamento de Fisiologia, Universidade Federal de Sergipe, São Cristóvão, Sergipe, Brasil.,Health Sciences Graduate Program, Universidade Federal de Sergipe, Aracaju, Sergipe, Brasil
| | | | | | | | | | - Saulo Santos Matos
- Departamento de Farmácia, Universidade Federal de Sergipe, São Cristóvão, Sergipe, Brasil
| | - Luiza Abrahão Frank
- Programa de Pós-Graduação Em Ciências Farmacêuticas, Faculdade de Farmácia, Universidade Federal Do Rio Grande Do Sul, Porto Alegre, Rio Grande do Sul, Brasil.
| | - Thallita Kelly Rabelo
- Harquail Centre for Neuromodulation, Sunnybrook Health Sciences Centre, Sunnybrook Research Institute, Toronto, ON, M4N 3M5, Canada
| | - Lucindo José Quintans-Júnior
- Departamento de Fisiologia, Universidade Federal de Sergipe, São Cristóvão, Sergipe, Brasil.,Health Sciences Graduate Program, Universidade Federal de Sergipe, Aracaju, Sergipe, Brasil
| | - Jullyana de Souza Siqueira Quintans
- Departamento de Fisiologia, Universidade Federal de Sergipe, São Cristóvão, Sergipe, Brasil.,Health Sciences Graduate Program, Universidade Federal de Sergipe, Aracaju, Sergipe, Brasil
| | - Adriano Antunes de Souza Araujo
- Departamento de Farmácia, Universidade Federal de Sergipe, São Cristóvão, Sergipe, Brasil.,Health Sciences Graduate Program, Universidade Federal de Sergipe, Aracaju, Sergipe, Brasil
| | - Mairim Russo Serafini
- Departamento de Farmácia, Universidade Federal de Sergipe, São Cristóvão, Sergipe, Brasil. .,Health Sciences Graduate Program, Universidade Federal de Sergipe, Aracaju, Sergipe, Brasil.
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Santos DMD, Da Silva EAP, Oliveira JYS, Marinho YYDM, Santana IRD, Heimfarth L, Pereira EWM, Júnior LJQ, Assreuy J, Menezes IAC, Santos MRVD. The Therapeutic Value of Hydralazine in Reducing Inflammatory Response, Oxidative Stress, and Mortality in Animal Sepsis: Involvement of the PI3K/AKT Pathway. Shock 2021; 56:782-792. [PMID: 33555842 DOI: 10.1097/shk.0000000000001746] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [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
ABSTRACT Sepsis is an amplified systemic immune-inflammatory response produced by a microorganism, which involves activation of inflammatory cytokine signaling pathways and oxidative stress. A variety of studies have shown that hydralazine (HDZ) has potent antioxidant and anti-inflammatory proprieties. Therefore, we hypothesize that HDZ can improve the clinical outcome of sepsis. Thus, this work aimed to evaluate therapeutic value of HDZ in reducing inflammatory response, oxidative stress, and mortality in animal sepsis, and to investigate its possible mechanism of action. Sepsis was induced by the cecal ligation and puncture (CLP) method in Wistar rats. After surgery, the animals were randomly divided into three groups: sham, sepsis, and sepsis + HDZ (1 mg/kg, s.c.). All groups were monitored for 48 h to assess survival rate, and clinical, hemodynamic, biochemical, and cellular parameters. After euthanasia, blood, spleen, liver, and kidneys were collected for analysis. Blood serum cytokines, tissue myeloperoxidase (MPO) activity, and oxidative stress parameters were assessed. Involvement of the PI3K/Akt pathway was also investigated. Sepsis was successfully induced by the CLP technique. HDZ treatment increased the survival rate (from 50% to 90%), improved glycemia control, reduced the clinical severity sepsis and mean arterial pressure; and prevented increased MPO activity, TNF-α, IL-1β, IL-10 levels, and oxidative damage markers. Additionally, HDZ significantly prevented the increase of Akt activation in the liver and kidney. HDZ largely mitigated the effects of sepsis by suppressing inflammatory and antioxidant responses via the PI3K/Akt pathway. These findings provide evidence that HDZ can be a new therapeutic alternative for treating sepsis.
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Affiliation(s)
- Danillo Menezes Dos Santos
- Health Sciences Graduate Program - Universidade Federal de Sergipe, Aracaju, SE, Brazil
- Department of Physiology - Universidade Federal de Sergipe, São Cristóvão, SE, Brazil
| | | | | | | | | | - Luana Heimfarth
- Department of Physiology - Universidade Federal de Sergipe, São Cristóvão, SE, Brazil
| | | | - Lucindo José Quintans Júnior
- Health Sciences Graduate Program - Universidade Federal de Sergipe, Aracaju, SE, Brazil
- Department of Physiology - Universidade Federal de Sergipe, São Cristóvão, SE, Brazil
| | - Jamil Assreuy
- Department of Pharmacology, Universidade Federal de Santa Catarina, Florianopolis, SC, Brazil
| | | | - Márcio Roberto Viana Dos Santos
- Health Sciences Graduate Program - Universidade Federal de Sergipe, Aracaju, SE, Brazil
- Department of Physiology - Universidade Federal de Sergipe, São Cristóvão, SE, Brazil
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Santos DMD, Quintans JSS, Quintans-Junior LJ, Santana-Filho VJ, Cunha CLPD, Menezes IAC, Santos MRV. Association between peripheral perfusion, microcirculation and mortality in sepsis: a systematic review. Brazilian Journal of Anesthesiology (English Edition) 2019. [PMID: 31826803 PMCID: PMC9391865 DOI: 10.1016/j.bjane.2019.09.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Affiliation(s)
| | - Jullyana S S Quintans
- Universidade Federal de Sergipe, Departamento de Fisiologia, São Cristóvão, SE, Brasil
| | | | | | | | | | - Márcio R Viana Santos
- Universidade Federal de Sergipe, Departamento de Fisiologia, São Cristóvão, SE, Brasil
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