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Malheiro LFL, Fernandes MM, Oliveira CA, Barcelos IDS, Fernandes AJV, Silva BS, Ávila JS, Soares TDJ, Amaral LSDB. Renoprotective mechanisms of exercise training against acute and chronic renal diseases - A perspective based on experimental studies. Life Sci 2024; 346:122628. [PMID: 38614303 DOI: 10.1016/j.lfs.2024.122628] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Revised: 03/22/2024] [Accepted: 04/10/2024] [Indexed: 04/15/2024]
Abstract
Regular exercise training can lead to several health benefits, reduce mortality risk, and increase life expectancy. On the other hand, a sedentary lifestyle is a known risk factor for chronic diseases and increased mortality. Acute kidney injury (AKI) and chronic kidney disease (CKD) represent a significant global health problem, affecting millions of people worldwide. The progression from AKI to CKD is well-recognized in the literature, and exercise training has emerged as a potential renoprotective strategy. Thus, this article aims to review the main molecular mechanisms underlying the renoprotective actions of exercise training in the context of AKI and CKD, focusing on its antioxidative, anti-inflammatory, anti-apoptotic, anti-fibrotic, and autophagy regulatory effects. For that, bibliographical research was carried out in Medline/PubMed and Scielo databases. Although the pathophysiological mechanisms involved in renal diseases are not fully understood, experimental studies demonstrate that oxidative stress, inflammation, apoptosis, and dysregulation of fibrotic and autophagic processes play central roles in the development of tissue damage. Increasing evidence has suggested that exercise can beneficially modulate these mechanisms, potentially becoming a safe and effective non-pharmacological strategy for kidney health protection and promotion. Thus, the evidence base discussed in this review suggests that an adequate training program emerges as a valuable tool for preserving renal function in experimental animals, mainly through the production of antioxidant enzymes, nitric oxide (NO), irisin, IL-10, and IL-11. Future research can continue to explore these mechanisms to develop specific guidelines for the prescription of exercise training in different populations of patients with kidney diseases.
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Affiliation(s)
- Lara Fabiana Luz Malheiro
- Instituto Multidisciplinar em Saúde, Universidade Federal da Bahia, Vitória da Conquista, Bahia 45029-094, Brazil; Programa de Pós-Graduação Multicêntrico em Ciências Fisiológicas, Brazil
| | - Mariana Masimessi Fernandes
- Instituto Multidisciplinar em Saúde, Universidade Federal da Bahia, Vitória da Conquista, Bahia 45029-094, Brazil
| | - Caroline Assunção Oliveira
- Instituto Multidisciplinar em Saúde, Universidade Federal da Bahia, Vitória da Conquista, Bahia 45029-094, Brazil; Programa de Pós-Graduação Multicêntrico em Ciências Fisiológicas, Brazil
| | - Isadora de Souza Barcelos
- Instituto Multidisciplinar em Saúde, Universidade Federal da Bahia, Vitória da Conquista, Bahia 45029-094, Brazil
| | - Ana Jullie Veiga Fernandes
- Instituto Multidisciplinar em Saúde, Universidade Federal da Bahia, Vitória da Conquista, Bahia 45029-094, Brazil
| | - Bruna Santos Silva
- Instituto Multidisciplinar em Saúde, Universidade Federal da Bahia, Vitória da Conquista, Bahia 45029-094, Brazil
| | - Júlia Spínola Ávila
- Instituto Multidisciplinar em Saúde, Universidade Federal da Bahia, Vitória da Conquista, Bahia 45029-094, Brazil
| | - Telma de Jesus Soares
- Instituto Multidisciplinar em Saúde, Universidade Federal da Bahia, Vitória da Conquista, Bahia 45029-094, Brazil; Programa de Pós-Graduação Multicêntrico em Ciências Fisiológicas, Brazil; Programa de Pós-Graduação em Biociências, Brazil
| | - Liliany Souza de Brito Amaral
- Instituto Multidisciplinar em Saúde, Universidade Federal da Bahia, Vitória da Conquista, Bahia 45029-094, Brazil; Programa de Pós-Graduação Multicêntrico em Ciências Fisiológicas, Brazil; Programa de Pós-Graduação em Biociências, Brazil.
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Oliveira CA, Mercês ÉAB, Portela FS, Malheiro LFL, Silva HBL, De Benedictis LM, De Benedictis JM, Silva CCDE, Santos ACL, Rosa DP, Velozo HS, de Jesus Soares T, de Brito Amaral LS. An integrated view of cisplatin-induced nephrotoxicity, hepatotoxicity, and cardiotoxicity: characteristics, common molecular mechanisms, and current clinical management. Clin Exp Nephrol 2024:10.1007/s10157-024-02490-x. [PMID: 38678166 DOI: 10.1007/s10157-024-02490-x] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Accepted: 03/18/2024] [Indexed: 04/29/2024]
Abstract
Cisplatin (CP) is a chemotherapy drug widely prescribed to treat various neoplasms. Although fundamental for the therapeutic action of the drug, its cytotoxic mechanisms trigger adverse effects in several tissues, such as the kidney, liver, and heart, which limit its clinical use. In this sense, studies point to an essential role of damage to nuclear and mitochondrial DNA associated with oxidative stress, inflammation, and apoptosis in the pathophysiology of tissue injuries. Due to the limitation of effective preventive and therapeutic measures against CP-induced toxicity, new strategies with potential cytoprotective effects have been studied. Therefore, this article is timely in reviewing the characteristics and main molecular mechanisms common to renal, hepatic, and cardiac toxicity previously described, in addition to addressing the main validated strategies for the current management of these adverse events in clinical practice. We also handle the main promising antioxidant substances recently presented in the literature to encourage the development of new research that consolidates their potential preventive and therapeutic effects against CP-induced cytotoxicity.
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Affiliation(s)
- Caroline Assunção Oliveira
- Instituto Multidisciplinar em Saúde, Universidade Federal da Bahia, Bahia, 45029-094, Brazil
- Programa de Pós-Graduação Multicêntrico em Ciências Fisiológicas, Instituto Multidisciplinar em Saúde, Universidade Federal da Bahia, Bahia, 45029-094, Brazil
| | - Érika Azenathe Barros Mercês
- Instituto Multidisciplinar em Saúde, Universidade Federal da Bahia, Bahia, 45029-094, Brazil
- Programa de Pós-Graduação em Biociências, Instituto Multidisciplinar em Saúde, Universidade Federal da Bahia, Bahia, 45029-094, Brazil
| | - Fernanda Santos Portela
- Instituto Multidisciplinar em Saúde, Universidade Federal da Bahia, Bahia, 45029-094, Brazil
- Programa de Pós-Graduação em Biociências, Instituto Multidisciplinar em Saúde, Universidade Federal da Bahia, Bahia, 45029-094, Brazil
| | - Lara Fabiana Luz Malheiro
- Instituto Multidisciplinar em Saúde, Universidade Federal da Bahia, Bahia, 45029-094, Brazil
- Programa de Pós-Graduação em Biociências, Instituto Multidisciplinar em Saúde, Universidade Federal da Bahia, Bahia, 45029-094, Brazil
| | | | | | | | | | | | | | - Helloisa Souza Velozo
- Instituto Multidisciplinar em Saúde, Universidade Federal da Bahia, Bahia, 45029-094, Brazil
| | - Telma de Jesus Soares
- Instituto Multidisciplinar em Saúde, Universidade Federal da Bahia, Bahia, 45029-094, Brazil
- Programa de Pós-Graduação Multicêntrico em Ciências Fisiológicas, Instituto Multidisciplinar em Saúde, Universidade Federal da Bahia, Bahia, 45029-094, Brazil
- Programa de Pós-Graduação em Biociências, Instituto Multidisciplinar em Saúde, Universidade Federal da Bahia, Bahia, 45029-094, Brazil
| | - Liliany Souza de Brito Amaral
- Instituto Multidisciplinar em Saúde, Universidade Federal da Bahia, Bahia, 45029-094, Brazil.
- Programa de Pós-Graduação Multicêntrico em Ciências Fisiológicas, Instituto Multidisciplinar em Saúde, Universidade Federal da Bahia, Bahia, 45029-094, Brazil.
- Programa de Pós-Graduação em Biociências, Instituto Multidisciplinar em Saúde, Universidade Federal da Bahia, Bahia, 45029-094, Brazil.
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Hora PS, Nogueira Junior JRDJ, Couto RD, Campos LMDCC, Soares TDJ, Casais-E-Silva LL, Souza SID. Renal functional and structural alterations induced by intramuscular injection of Bothrops leucurus venom. Toxicon 2023; 234:107265. [PMID: 37673342 DOI: 10.1016/j.toxicon.2023.107265] [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: 04/16/2023] [Revised: 07/03/2023] [Accepted: 08/22/2023] [Indexed: 09/08/2023]
Abstract
Acute kidney injury (AKI) is the main cause of death from Bothrops snakebite. Although many studies have investigated the nephrotoxicity induced by other Bothrops species, no study has assessed the renal alterations induced by intramuscular (i.m.) injection of Bothrops leucurus venom. In this study, we evaluated the nephrotoxicity induced by B. leucurus venom by analyzing renal function and histology. Wistar rats were submitted to i. m. injection of B. leucurus venom or saline and divided into two groups: Control group (C), rats submitted to i. m. injections of saline, and B. leucurus group (Bl), rats submitted to i. m. injections of B. leucurus venom (1 mg/kg). After venom or saline injection, serum and urine were collected to measure creatinine, albumin, sodium, and potassium levels. The glomerular filtration rate (GFR), urinary flow urinary, creatinine/serum creatinine ratio, and albuminuria-urinary creatinine ratio were determined. All rats were euthanized 72 h following the injections, and the kidneys were removed for histology and immunohistochemical studies. B. leucurus experimental envenoming was accompanied by an increase of 236% in serum creatine kinase activity in the Bl group. The weights of the right and left kidneys were, respectively, 26 and 22% higher in rats of the Bl group than in control rats. Regarding renal function, the Bl group showed a decrease of 37% in GFR compared to control group. The rats of the Bl group also presented increased cortical (8.20 ± 1.35) and medullar (6.17 ± 2.00) tubulointerstitial lesion area when compared to control group (0.02 ± 0.00) (1.20 ± 0.73), respectively. The number of macrophages was also higher in the renal cortex (6.66 ± 0.06) and medulla (1.22 ± 0.10) of rats from the Bl group when compared to control rats (1.04 ± 0.55), (0.65 ± 0.10), respectively. Our results indicate that B. leucurus venom promoted significant histological and functional renal alterations following intramuscular inoculation, which simulates the majority of snakebites observed in the clinical practice.
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Affiliation(s)
- Paloma Santos Hora
- Instituto Multidisciplinar em Saúde, Universidade Federal da Bahia, Vitória da Conquista, Bahia, 45029094, Brazil
| | | | - Ricardo David Couto
- Faculdade de Farmácia, Universidade Federal da Bahia, Salvador, Bahia, 40170115, Brazil
| | | | - Telma de Jesus Soares
- Instituto Multidisciplinar em Saúde, Universidade Federal da Bahia, Vitória da Conquista, Bahia, 45029094, Brazil
| | | | - Samira Itana de Souza
- Instituto de Ciências da Saúde, Universidade Federal da Bahia, Salvador, Bahia, 40231300, Brazil.
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Dos Santos DC, de Souza Bittencout R, Arêas ID, Pena LSC, Almeida CF, de Brito Guimarães BC, Dórea RSDM, Correia TML, Júnior MNS, Morbeck LLB, Dos Santos TC, Souza CLS, de Souza SI, de Jesus Soares T, Yatsuda R, Campos GB, Marques LM. Effects of 5α-dihydrotestosterone on the modulation of monocyte/macrophage response to Staphylococcus aureus: an in vitro study. Biol Sex Differ 2023; 14:15. [PMID: 37004108 PMCID: PMC10065996 DOI: 10.1186/s13293-023-00501-2] [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] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Accepted: 03/27/2023] [Indexed: 04/03/2023] Open
Abstract
BACKGROUND Staphylococcus aureus (S. aureus) is a pathogen responsible for a wide range of clinical manifestations and potentially fatal conditions. There is a paucity of information on the influence of androgens in the immune response to S. aureus infection. In this study, we evaluated the influence of the hormone 5α-dihydrotestosterone (DHT) on mouse peritoneal macrophages (MPMs) and human peripheral blood monocytes (HPBMs) induced by S. aureus. METHODS An in vitro model of MPMs from BALB/c sham males, orchiectomised (OQX) males, and females was used. Cells were inoculated with 10 μL of S. aureus, phage-type 80 or sterile saline (control) for 6 h. The MPMs of OQX males and females were pre-treated with 100 μL of 10-2 M DHT for 24 h before inoculation with S. aureus. The concentration of the cytokines TNF-α, IL-1α, IL-6, IL-8, and IL-10; total nitrites (NO-2); and hydrogen peroxide (H2O2) were measured in the supernatant of MPM cultures. In addition, the toll-like receptor 2 (TLR2) and nuclear factor kappa B (NF-kB) genes that are involved in immune responses were analysed. For the in vitro model of HPBMs, nine men and nine women of childbearing age were selected and HPBMs were isolated from samples of the volunteers' peripheral blood. In women, blood was collected during the periovulatory period. The HPBMs were inoculated with S. aureus for 6 h and the supernatant was collected for the analysis of cytokines TNF-α, IL-6, IL-12; and GM-CSF, NO-2, and H2O2. The HPBMs were then removed for the analysis of 84 genes involved in the host's response to bacterial infections by RT-PCR array. GraphPad was used for statistical analysis with a p value < 0.05. RESULTS Our data demonstrated that MPMs from sham males inoculated with S. aureus displayed higher concentrations of inflammatory cytokines and lower concentrations of IL-10, NO-2, and H2O2 when compared with MPMs from OQX males and females. A similar result was observed in the HPBMs of men when compared with those of women. Previous treatment with DHT in women HPBMs increased the production of pro-inflammatory cytokines and decreased the levels of IL-10, NO-2, and H2O2. The analysis of gene expression showed that DHT increased the activity of the TLR2 and NF-kB pathways in both MPMs and HPBMs. CONCLUSIONS We found that DHT acts as an inflammatory modulator in the monocyte/macrophage response induced by S. aureus and females exhibit a better immune defence response against this pathogen.
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Affiliation(s)
- Déborah Cruz Dos Santos
- Multidisciplinary Institute of Health, Federal University of Bahia (UFBA), Rua Hormindo Barros, 58, Candeias, Vitória da Conquista, Bahia, 45029-094, Brazil
| | - Rafaela de Souza Bittencout
- Multidisciplinary Institute of Health, Federal University of Bahia (UFBA), Rua Hormindo Barros, 58, Candeias, Vitória da Conquista, Bahia, 45029-094, Brazil
| | - Iago Dórea Arêas
- Multidisciplinary Institute of Health, Federal University of Bahia (UFBA), Rua Hormindo Barros, 58, Candeias, Vitória da Conquista, Bahia, 45029-094, Brazil
| | - Larissa Silva C Pena
- Multidisciplinary Institute of Health, Federal University of Bahia (UFBA), Rua Hormindo Barros, 58, Candeias, Vitória da Conquista, Bahia, 45029-094, Brazil
| | - Carolline Florentino Almeida
- Multidisciplinary Institute of Health, Federal University of Bahia (UFBA), Rua Hormindo Barros, 58, Candeias, Vitória da Conquista, Bahia, 45029-094, Brazil
| | - Bruna Carolina de Brito Guimarães
- Multidisciplinary Institute of Health, Federal University of Bahia (UFBA), Rua Hormindo Barros, 58, Candeias, Vitória da Conquista, Bahia, 45029-094, Brazil
| | - Rafael Santos Dantas Miranda Dórea
- Multidisciplinary Institute of Health, Federal University of Bahia (UFBA), Rua Hormindo Barros, 58, Candeias, Vitória da Conquista, Bahia, 45029-094, Brazil
| | - Thiago Macêdo Lopes Correia
- Multidisciplinary Institute of Health, Federal University of Bahia (UFBA), Rua Hormindo Barros, 58, Candeias, Vitória da Conquista, Bahia, 45029-094, Brazil
| | | | - Lorena Lôbo Brito Morbeck
- Multidisciplinary Institute of Health, Federal University of Bahia (UFBA), Rua Hormindo Barros, 58, Candeias, Vitória da Conquista, Bahia, 45029-094, Brazil
| | - Talita Costa Dos Santos
- Multidisciplinary Institute of Health, Federal University of Bahia (UFBA), Rua Hormindo Barros, 58, Candeias, Vitória da Conquista, Bahia, 45029-094, Brazil
| | - Clarissa Leal S Souza
- Multidisciplinary Institute of Health, Federal University of Bahia (UFBA), Rua Hormindo Barros, 58, Candeias, Vitória da Conquista, Bahia, 45029-094, Brazil
| | | | - Telma de Jesus Soares
- Multidisciplinary Institute of Health, Federal University of Bahia (UFBA), Rua Hormindo Barros, 58, Candeias, Vitória da Conquista, Bahia, 45029-094, Brazil
| | - Regiane Yatsuda
- Multidisciplinary Institute of Health, Federal University of Bahia (UFBA), Rua Hormindo Barros, 58, Candeias, Vitória da Conquista, Bahia, 45029-094, Brazil
| | - Guilherme Barreto Campos
- Multidisciplinary Institute of Health, Federal University of Bahia (UFBA), Rua Hormindo Barros, 58, Candeias, Vitória da Conquista, Bahia, 45029-094, Brazil
- University of Santa Cruz (UESC), Campus Soane Nazaré de Andrade, Ilhéus, Brazil
| | - Lucas Miranda Marques
- Multidisciplinary Institute of Health, Federal University of Bahia (UFBA), Rua Hormindo Barros, 58, Candeias, Vitória da Conquista, Bahia, 45029-094, Brazil.
- University of Santa Cruz (UESC), Campus Soane Nazaré de Andrade, Ilhéus, Brazil.
- Department of Microbiology, Institute of Biomedical Science, University of São Paulo, São Paulo, Brazil.
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Santos Filho LED, Santos GPLD, Silva JA, Silva FDA, Silva MN, Almeida AAD, Coqueiro RDS, Coimbra CC, Soares TDJ, Magalhães ACMD. Dietary Soy Isoflavones Prevent Metabolic Disturbs Associated with a Deleterious Combination of Obesity and Menopause. J Med Food 2023; 26:104-113. [PMID: 36383150 DOI: 10.1089/jmf.2022.0055] [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] [Indexed: 11/17/2022] Open
Abstract
This study aimed to evaluate the effects of soy isoflavone supplementation (25 mg/kg) on insulin resistance and inflammation in adipose tissue in an experimental model of menopause-obesity. Twenty-four female Wistar rats were ovariectomized (O) and distributed among the groups: OSD-ovariectomized rats submitted to normocaloric standard diet (n = 6); OHF-ovariectomized rats submitted to high-fat diet (n = 9); and OHFI-ovariectomized rats submitted to high-fat diet with isoflavones (n = 9). Weight gain, body adiposity, food and caloric intake, blood pressure, and glucose tolerance were assessed. After 24 weeks, the rats were euthanized; the thoracic blood collected for serum insulin determination and the homeostatic model assessment-insulin resistance) (HOMA-IR) and homeostatic model assessment-β cell (HOMA-β) indices were calculated. Abdominal adipose tissues were removed, weighed, and fixed for immunohistochemical and morphometric studies. Isoflavones decreased weight gain and blood pressure without changing the food and caloric intake (P < .05). Isoflavones did not affect the weight of the abdominal adipose tissue depots (P < .05). Although they did not alter glucose tolerance, the isoflavones reduced HOMA-IR and HOMA-β, serum insulin levels, in addition to reducing adipocytes' size (P < .05). The number of macrophages, lymphocytes, and crown-like structures in adipose tissue was lower in the group treated with isoflavones (P < .05). In conclusion, our data show that dietary soy isoflavones' supplementation prevents many of well-known deleterious combination of obesity and menopause on metabolism, such as body overweight, adipocyte hypertrophy, and hypertension, as well as insulin resistance and adipose tissue inflammation.
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Affiliation(s)
- Luciano Evangelista Dos Santos Filho
- Postgraduate Multicentric Program in Physiological Sciences, Brazilian Physiological Society/Multidisciplinary Institute of Health, Federal University of Bahia, Vitória of Conquista, Bahia, Brazil
| | - Grazielle Prates Lourenço Dos Santos
- Postgraduate Multicentric Program in Physiological Sciences, Brazilian Physiological Society/Multidisciplinary Institute of Health, Federal University of Bahia, Vitória of Conquista, Bahia, Brazil
| | - Jussara Andrade Silva
- Postgraduate Multicentric Program in Physiological Sciences, Brazilian Physiological Society/Multidisciplinary Institute of Health, Federal University of Bahia, Vitória of Conquista, Bahia, Brazil
| | - Fernanda de Abreu Silva
- Postgraduate Multicentric Program in Physiological Sciences, Brazilian Physiological Society/Multidisciplinary Institute of Health, Federal University of Bahia, Vitória of Conquista, Bahia, Brazil
| | - Mirlana Neves Silva
- Multidisciplinary Institute of Health, Federal University of Bahia, Vitória of Conquista, Bahia, Brazil
| | - Amanda Alves de Almeida
- Multidisciplinary Institute of Health, Federal University of Bahia, Vitória of Conquista, Bahia, Brazil
| | | | - Cândido Celso Coimbra
- Department of Physiology and Biophysics, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Telma de Jesus Soares
- Multidisciplinary Institute of Health, Federal University of Bahia, Vitória of Conquista, Bahia, Brazil
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Oliveira CA, Mercês ÉAB, Portela FS, De Benedictis JM, De Benedictis LM, da Silva AVB, Campanati JDAG, de Melo FF, Oliveira MV, de Magalhães ACM, Soares TDJ, Amaral LSDB. Benefits of high-intensity interval training compared to continuous training to reduce apoptotic markers in female rats with cisplatin nephrotoxicity - possible modulatory role of IL-11. Apoptosis 2023; 28:566-575. [PMID: 36653732 DOI: 10.1007/s10495-023-01816-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/08/2023] [Indexed: 01/20/2023]
Abstract
Apoptotic signaling pathways are involved in acute kidney injury (AKI) induced by the antineoplastic drug cisplatin (Cis). Mechanical stress is known to increase interleukin (IL) -11, a pleiotropic cytokine with antiapoptotic and antinecrotic effects. We compared the impact of high-intensity interval training (HIIT) with low-intensity continuous training (LICT) and moderate-intensity continuous training (MICT) on renal levels of IL-11 and the expression of apoptotic markers in female rats with nephrotoxicity induced by Cis. For that, the animals were divided into five groups (n = 7): control and sedentary (C + S); Cis and sedentary (Cis + S); Cis and LICT (Cis + LICT); Cis and MICT (Cis + MICT) and Cis and HIIT (Cis + HIIT). At the end of 8 weeks of treadmill running, the rats received a single injection of Cis (5 mg/kg), and 7 days later they were euthanized. Serum and kidney samples were collected to assess the blood urea nitrogen (BUN), gene expression of TNF receptor 1 (TNFR1) and 2 (TNFR2), caspase-3, (p38) MAPK (MAPK14), p53, Bax, Bak, Bcl-2, and Bcl-xL, renal levels of IL-11, IL-8, and p53, and immunolocalization of cleaved caspase-3, Bax, Bcl-2, and (p38) MAPK in renal tissue. Our data indicate that all trained groups showed a significant intensity-dependent increase in renal levels of IL-11 associated with reduced local expression of proapoptotic and increased antiapoptotic markers, but these effects were more pronounced with HIIT. So, HIIT appears to provide superior renoprotection than traditional continuous training by modulating apoptotic signaling pathways, and this effect can be related to the increase in renal levels of IL-11.
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Affiliation(s)
- Caroline Assunção Oliveira
- Instituto Multidisciplinar em Saúde, Programa de Pós-Graduação Multicêntrico em Ciências Fisiológicas, Universidade Federal da Bahia, Vitória da Conquista, Rua Rio de Contas, 58, Candeias, 45029-094, Bahia, Brazil
| | - Érika Azenathe Barros Mercês
- Instituto Multidisciplinar em Saúde, Programa de Pós-Graduação Multicêntrico em Ciências Fisiológicas, Universidade Federal da Bahia, Vitória da Conquista, Rua Rio de Contas, 58, Candeias, 45029-094, Bahia, Brazil
| | - Fernanda Santos Portela
- Instituto Multidisciplinar em Saúde, Programa de Pós-Graduação Multicêntrico em Ciências Fisiológicas, Universidade Federal da Bahia, Vitória da Conquista, Rua Rio de Contas, 58, Candeias, 45029-094, Bahia, Brazil
| | - Júlia Mafra De Benedictis
- Instituto Multidisciplinar em Saúde, Programa de Pós-Graduação Multicêntrico em Ciências Fisiológicas, Universidade Federal da Bahia, Vitória da Conquista, Rua Rio de Contas, 58, Candeias, 45029-094, Bahia, Brazil
| | - Laís Mafra De Benedictis
- Instituto Multidisciplinar em Saúde, Programa de Pós-Graduação Multicêntrico em Ciências Fisiológicas, Universidade Federal da Bahia, Vitória da Conquista, Rua Rio de Contas, 58, Candeias, 45029-094, Bahia, Brazil
| | - Antônio Victor Brito da Silva
- Instituto Multidisciplinar em Saúde, Programa de Pós-Graduação Multicêntrico em Ciências Fisiológicas, Universidade Federal da Bahia, Vitória da Conquista, Rua Rio de Contas, 58, Candeias, 45029-094, Bahia, Brazil
| | - João de Assis Gonçalves Campanati
- Instituto Multidisciplinar em Saúde, Programa de Pós-Graduação Multicêntrico em Ciências Fisiológicas, Universidade Federal da Bahia, Vitória da Conquista, Rua Rio de Contas, 58, Candeias, 45029-094, Bahia, Brazil
| | - Fabrício Freire de Melo
- Instituto Multidisciplinar em Saúde, Programa de Pós-Graduação Multicêntrico em Ciências Fisiológicas, Universidade Federal da Bahia, Vitória da Conquista, Rua Rio de Contas, 58, Candeias, 45029-094, Bahia, Brazil
| | - Márcio Vasconcelos Oliveira
- Instituto Multidisciplinar em Saúde, Programa de Pós-Graduação Multicêntrico em Ciências Fisiológicas, Universidade Federal da Bahia, Vitória da Conquista, Rua Rio de Contas, 58, Candeias, 45029-094, Bahia, Brazil
| | - Amélia Cristina Mendes de Magalhães
- Instituto Multidisciplinar em Saúde, Programa de Pós-Graduação Multicêntrico em Ciências Fisiológicas, Universidade Federal da Bahia, Vitória da Conquista, Rua Rio de Contas, 58, Candeias, 45029-094, Bahia, Brazil
| | - Telma de Jesus Soares
- Instituto Multidisciplinar em Saúde, Programa de Pós-Graduação Multicêntrico em Ciências Fisiológicas, Universidade Federal da Bahia, Vitória da Conquista, Rua Rio de Contas, 58, Candeias, 45029-094, Bahia, Brazil
| | - Liliany Souza de Brito Amaral
- Instituto Multidisciplinar em Saúde, Programa de Pós-Graduação Multicêntrico em Ciências Fisiológicas, Universidade Federal da Bahia, Vitória da Conquista, Rua Rio de Contas, 58, Candeias, 45029-094, Bahia, Brazil.
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Muniz IPR, Galantini MPL, Ribeiro IS, Gonçalves CV, Dos Santos DP, Moura TC, Silva ES, Silva NR, Cipriano BP, Correia TML, de Jesus Soares T, de Freitas LM, Costa DJ, da Silva RAA. Antimicrobial photodynamic therapy (aPDT) with curcumin controls intradermal infection by Staphylococcus aureus in mice with type 1 diabetes mellitus: a pilot study. J Photochem Photobiol B 2021; 224:112325. [PMID: 34598018 DOI: 10.1016/j.jphotobiol.2021.112325] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Revised: 09/16/2021] [Accepted: 09/20/2021] [Indexed: 10/20/2022]
Abstract
Methicillin-resistant Staphylococcus aureus (MRSA) is one of the main pathogens that cause infections in diabetic individuals. In this paper, we report the outcomes of our investigation on the intradermal application of antimicrobial photodynamic therapy (PDT) with curcumin in an infection induced by MRSA ATCC 43300 strain in the ear of mice with Type 1 Diabetes Mellitus (T1DM). A solution containing 100 μg of curcumin was photoactivated ex vivo with a LED light (450 nm) delivering a fluency of 13.5 J/cm3. This solution was administered in the ear intradermally, at the same inoculum site as the MRSA ATCC 43300 strain (PDT Group). This study also included the use of two control groups (both infected): One was treated with saline and the other was treated with non-photoactivated curcumin. The animals were euthanized 24 h after these treatments and samples of draining lymph node and treated ear were collected for examination. The PDT group showed lower bacterial load in the draining lymph node when compared to the saline and curcumin groups (p-value <0.05) 24 h after treatment. In addition to bacterial load, the PDT group presented a higher concentration of nitrates and nitrites in the draining lymph node when compared to the saline and curcumin groups (p-value <0.001). Examining the infectious site, despite apparently having similar inflammatory cell recruitment compared with the control groups, the PDT group showed a profile with less intense activity in the myeloperoxidase expression when compared to the saline group (p-value <0.001). Additionally, the detected concentration of cytokines such as IL-1β, IL-12, and IL-10 was significantly lower in the PDT group when compared to the saline group (p-value <0.01; p-value <0.05; p-value <0.05, respectively), thus presenting a less intense inflammatory response during infection resolution. Our pilot study showed for the first time the therapeutic potential of PDT using curcumin when administered intradermally in the treatment of infections caused by S. aureus in mice with T1DM.
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Affiliation(s)
- Igor Pereira Ribeiro Muniz
- Universidade Federal da Bahia, Campus Anísio Teixeira - Instituto Multidisciplinar em Saúde, Rua Rio de Contas, 58, Bairro Candeias, CEP: 45.029-094 Vitória da Conquista, Bahia, Brasil
| | - Maria Poliana Leite Galantini
- Universidade Federal da Bahia, Campus Anísio Teixeira - Instituto Multidisciplinar em Saúde, Rua Rio de Contas, 58, Bairro Candeias, CEP: 45.029-094 Vitória da Conquista, Bahia, Brasil
| | - Israel Souza Ribeiro
- Universidade Federal da Bahia, Campus Anísio Teixeira - Instituto Multidisciplinar em Saúde, Rua Rio de Contas, 58, Bairro Candeias, CEP: 45.029-094 Vitória da Conquista, Bahia, Brasil; Universidade Federal do Sul da Bahia, Campus Paulo Freire, 250 Praça Joana Angélica, Bairro São José, 45.988-058, Teixeira de Freitas, Bahia, Brazil
| | - Caroline Vieira Gonçalves
- Universidade Federal da Bahia, Campus Anísio Teixeira - Instituto Multidisciplinar em Saúde, Rua Rio de Contas, 58, Bairro Candeias, CEP: 45.029-094 Vitória da Conquista, Bahia, Brasil
| | - Denisar Palmito Dos Santos
- Universidade Federal da Bahia, Campus Anísio Teixeira - Instituto Multidisciplinar em Saúde, Rua Rio de Contas, 58, Bairro Candeias, CEP: 45.029-094 Vitória da Conquista, Bahia, Brasil
| | - Tatyana Chagas Moura
- Universidade Federal da Bahia, Campus Anísio Teixeira - Instituto Multidisciplinar em Saúde, Rua Rio de Contas, 58, Bairro Candeias, CEP: 45.029-094 Vitória da Conquista, Bahia, Brasil
| | - Emely Soares Silva
- Universidade Federal da Bahia, Campus Anísio Teixeira - Instituto Multidisciplinar em Saúde, Rua Rio de Contas, 58, Bairro Candeias, CEP: 45.029-094 Vitória da Conquista, Bahia, Brasil
| | - Nathalia Rosa Silva
- Universidade Federal da Bahia, Campus Anísio Teixeira - Instituto Multidisciplinar em Saúde, Rua Rio de Contas, 58, Bairro Candeias, CEP: 45.029-094 Vitória da Conquista, Bahia, Brasil
| | - Barbara Porto Cipriano
- Universidade Federal da Bahia, Campus Anísio Teixeira - Instituto Multidisciplinar em Saúde, Rua Rio de Contas, 58, Bairro Candeias, CEP: 45.029-094 Vitória da Conquista, Bahia, Brasil
| | - Thiago Macêdo Lopes Correia
- Universidade Federal da Bahia, Campus Anísio Teixeira - Instituto Multidisciplinar em Saúde, Rua Rio de Contas, 58, Bairro Candeias, CEP: 45.029-094 Vitória da Conquista, Bahia, Brasil
| | - Telma de Jesus Soares
- Universidade Federal da Bahia, Campus Anísio Teixeira - Instituto Multidisciplinar em Saúde, Rua Rio de Contas, 58, Bairro Candeias, CEP: 45.029-094 Vitória da Conquista, Bahia, Brasil
| | - Leandro Martins de Freitas
- Universidade Federal da Bahia, Campus Anísio Teixeira - Instituto Multidisciplinar em Saúde, Rua Rio de Contas, 58, Bairro Candeias, CEP: 45.029-094 Vitória da Conquista, Bahia, Brasil
| | - Dirceu Joaquim Costa
- Universidade Estadual do Sudoeste da Bahia, Campus Vitória da Conquista, Av. Edmundo Silveira Flores, 27-43 - Lot, Alto da Boa Vista, CEP: 45029-066 Vitória da Conquista, Bahia, Brasil
| | - Robson Amaro Augusto da Silva
- Universidade Federal da Bahia, Campus Anísio Teixeira - Instituto Multidisciplinar em Saúde, Rua Rio de Contas, 58, Bairro Candeias, CEP: 45.029-094 Vitória da Conquista, Bahia, Brasil.
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Souza CLSE, Barbosa CD, Coelho HILN, Santos Júnior MN, Barbosa EN, Queiroz ÉC, Teles MF, Dos Santos DC, Bittencourt RS, Soares TDJ, Oliveira MV, Timenetsky J, Campos GB, Marques LM. Effects of 17β-Estradiol on Monocyte/Macrophage Response to Staphylococcus aureus: An In Vitro Study. Front Cell Infect Microbiol 2021; 11:701391. [PMID: 34336722 PMCID: PMC8317603 DOI: 10.3389/fcimb.2021.701391] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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] [Received: 04/27/2021] [Accepted: 06/29/2021] [Indexed: 01/23/2023] Open
Abstract
To describe how 17β-estradiol (E2) influence in the monocyte/macrophage response induced by S. aureus in in vitro models of murine peritoneal macrophages (MPMs) and human peripheral blood monocytes (HPBM). MPMs (2 x 105/ml) were isolated from sham (n=3) and ovariectomized (OVX) females (n = 3) and males (n = 3) after induction by thioglycolate. The MPMs obtained from OVX females and males were treated for 24 hours with 17β-estradiol (E2) (10-7 M), and after that, inoculation with S. aureus was carried out for 6 hours. The macrophages were collected and destined to evaluate the relative gene expression of TNF-α, IL-1β, IL-6, IL-8 and TLR2. For the in vitro model of HPBMs, six men and six women of childbearing age were selected and HPBMs were isolated from samples of the volunteers’ peripheral blood. In women, blood was collected both during menstruation and in the periovulatory period. HPBMs were inoculated with S. aureus for 6 hours and the supernatant was collected for analysis of cytokines by Luminex and the HPBMs were removed for analysis of 84 genes involved in the host’s response to bacterial infections by RT-PCR array. Previous treatment with E2 decreased the gene expression and production of proinflammatory cytokines, such as TNF-α, IL-1β and IL-6 and decreased the expression of TLR2 tanto em MPMs quanto em HPBMs. The analysis of gene expression shows that E2 inhibited the NFκB pathway. It is suggested that 17β-estradiol acts as an immunoprotective in the monocyte/macrophage response induced by S. aureus.
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Affiliation(s)
- Clarissa Leal Silva E Souza
- Multidisciplinary Institute of Health, Federal University of Bahia (UFBA), Vitória da Conquista, Brazil.,Santo Agostinho School of Health (FASA), Santo Agostinho Colleges, Afya Educational, Vitória da Conquista, Brazil
| | - Camila Dutra Barbosa
- Multidisciplinary Institute of Health, Federal University of Bahia (UFBA), Vitória da Conquista, Brazil
| | - Hanna I L N Coelho
- Multidisciplinary Institute of Health, Federal University of Bahia (UFBA), Vitória da Conquista, Brazil
| | - Manoel N Santos Júnior
- Multidisciplinary Institute of Health, Federal University of Bahia (UFBA), Vitória da Conquista, Brazil.,University of Santa Cruz (UESC), Ilhéus, Brazil
| | - Elaine Novaes Barbosa
- Multidisciplinary Institute of Health, Federal University of Bahia (UFBA), Vitória da Conquista, Brazil
| | - Éllunny Chaves Queiroz
- Multidisciplinary Institute of Health, Federal University of Bahia (UFBA), Vitória da Conquista, Brazil
| | - Mauro Fernandes Teles
- Santo Agostinho School of Health (FASA), Santo Agostinho Colleges, Afya Educational, Vitória da Conquista, Brazil
| | - Déborah Cruz Dos Santos
- Multidisciplinary Institute of Health, Federal University of Bahia (UFBA), Vitória da Conquista, Brazil
| | - Rafaela Souza Bittencourt
- Multidisciplinary Institute of Health, Federal University of Bahia (UFBA), Vitória da Conquista, Brazil
| | - Telma de Jesus Soares
- Multidisciplinary Institute of Health, Federal University of Bahia (UFBA), Vitória da Conquista, Brazil
| | | | - Jorge Timenetsky
- Department of Microbiology, Institute of Biomedical Science, University of São Paulo, São Paulo, Brazil
| | - Guilherme Barreto Campos
- Multidisciplinary Institute of Health, Federal University of Bahia (UFBA), Vitória da Conquista, Brazil
| | - Lucas Miranda Marques
- Multidisciplinary Institute of Health, Federal University of Bahia (UFBA), Vitória da Conquista, Brazil.,University of Santa Cruz (UESC), Ilhéus, Brazil.,Department of Microbiology, Institute of Biomedical Science, University of São Paulo, São Paulo, Brazil
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9
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de Souza SI, Rocha EC, Ferraz HR, Dias JA, Seguro AC, Volpini RA, Canale D, de Bragança AC, Shimizu MHM, Marques LM, de Magalhães ACM, Coimbra TM, de Jesus Soares T. Acute kidney injury induced by glycerol is worsened by orchiectomy and attenuated by testosterone replacement. Steroids 2021; 165:108755. [PMID: 33171132 DOI: 10.1016/j.steroids.2020.108755] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Revised: 10/15/2020] [Accepted: 10/24/2020] [Indexed: 12/24/2022]
Abstract
Although several studies have demonstrated that the male gender represents an independent risk factor for renal disease, evidence shows that androgens exert renal protective actions. The findings are controversial and no studies have evaluated the effects of orchiectomy and testosterone replacement on glycerol-induced renal injury. Male Wistar rats were submitted to orchiectomy or sham surgery and divided into four groups: SC, sham control rats injected with NaCl; SG, sham rats injected with glycerol; OG, orchiectomized rats injected with glycerol; OGT, orchiectomized rats injected with glycerol and testosterone. Testosterone was administered daily for 14 days in the OGT group. After 11 days of testosterone replacement in the OGT group, SC rats were submitted to a saline injection, while SG, OG and OGT rats received glycerol. All rats were euthanized three days after injections. OG rats presented higher serum creatinine and urea, and sodium excretion, compared to SC and SG, while testosterone attenuated these changes. Acute tubular necrosis was also mitigated by testosterone. Renal immunostaining for macrophages, lymphocytes and NF-κB was higher in OG compared to SC and SG. In addition, renal interleukin-1β, Caspase 3 and AT1 gene expression was higher in OG rats compared to SG. Testosterone attenuated these alterations, except the NF-κB immunostaining. The renal NO was lower in OG rats compared to SG. Only the OG rats presented decreases in serum NO and renal HO-1, and increased TNF-α, angiotensinogen and AT1 expression compared to SC. We conclude that orchiectomy worsened glycerol-induced kidney injury, while testosterone attenuated this renal damage.
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Affiliation(s)
- Samira Itana de Souza
- Instituto Multidisciplinar em Saúde, Universidade Federal da Bahia, Vitória da Conquista, Bahia 45029-094, Brazil
| | - Edilene Cândido Rocha
- Instituto Multidisciplinar em Saúde, Universidade Federal da Bahia, Vitória da Conquista, Bahia 45029-094, Brazil
| | - Halanna Rocha Ferraz
- Instituto Multidisciplinar em Saúde, Universidade Federal da Bahia, Vitória da Conquista, Bahia 45029-094, Brazil
| | - Jéssica Afonso Dias
- Instituto Multidisciplinar em Saúde, Universidade Federal da Bahia, Vitória da Conquista, Bahia 45029-094, Brazil
| | - Antonio Carlos Seguro
- Laboratório de Investigação Médica 12 (LIM12), Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, Brazil
| | - Rildo Aparecido Volpini
- Laboratório de Investigação Médica 12 (LIM12), Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, Brazil
| | - Daniele Canale
- Laboratório de Investigação Médica 12 (LIM12), Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, Brazil
| | - Ana Carolina de Bragança
- Laboratório de Investigação Médica 12 (LIM12), Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, Brazil
| | - Maria Heloisa Massola Shimizu
- Laboratório de Investigação Médica 12 (LIM12), Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, Brazil
| | - Lucas Miranda Marques
- Instituto Multidisciplinar em Saúde, Universidade Federal da Bahia, Vitória da Conquista, Bahia 45029-094, Brazil
| | | | - Terezila Machado Coimbra
- Departamento de Fisiologia, Universidade de São Paulo, Ribeirão Preto, São Paulo 14049-900, Brazil
| | - Telma de Jesus Soares
- Instituto Multidisciplinar em Saúde, Universidade Federal da Bahia, Vitória da Conquista, Bahia 45029-094, Brazil.
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10
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Leite AB, Lima HN, Flores CDO, Oliveira CA, Cunha LEC, Neves JL, Correia TML, de Melo FF, Oliveira MV, de Magalhães ACM, Soares TDJ, Amaral LSDB. High-intensity interval training is more effective than continuous training to reduce inflammation markers in female rats with cisplatin nephrotoxicity. Life Sci 2020; 266:118880. [PMID: 33310039 DOI: 10.1016/j.lfs.2020.118880] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [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: 09/03/2020] [Revised: 11/27/2020] [Accepted: 12/03/2020] [Indexed: 02/08/2023]
Abstract
AIMS Cisplatin (CP) is an antineoplastic widely used in the treatment of various solid tumors, however, its clinical application is limited by nephrotoxicity. Here, we compared the impact of preconditioning with high-intensity interval training (HIIT) with continuous training of low (LIT) and moderate (MIT) intensity on innate immunity markers in female rats with CP-induced acute kidney injury. MATERIALS AND METHODS The rats were divided into five groups (n = 7): saline control and sedentary (C + S); CP and sedentary (CP + S); CP and LIT (CP + LIT); CP and MIT (CP + MIT) and CP and HIIT (CP + HIIT). The training intensity was determined by a maximum running test. At the end of training, the rats received a single dose of CP (5 mg/kg), and 7 days later they were euthanized. We evaluated renal function parameters (serum creatinine, glomerular filtration rate and proteinuria), renal structure, macrophage tissue infiltration, immunolocalization of nuclear transcription factor kappa B (NF-κB), renal levels of tumor necrosis factor-alpha (TNF-α), interleukin 1β (IL-1β), and interleukin 6 (IL-6), and gene expression of monocyte chemoattractant protein-1 (MCP-1), toll-like receptor 4 (TLR4), and NF-κB in renal tissue. KEY FINDINGS Although both MIT and HIIT attenuated the degree of renal injury, only the HIIT prevented changes in renal function. The three training protocols mitigated the increase in expression of all inflammatory markers, however, this effect was more pronounced in HIIT. SIGNIFICANCE All training protocols promoted renoprotective actions, but HIIT was more effective in mitigating CP-induced acute kidney injury, in part by modulation of important markers of the innate immune response.
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Affiliation(s)
- Allyne Baía Leite
- Instituto Multidisciplinar em Saúde, Universidade Federal da Bahia, Programa de Pós-Graduação em Biociências, Vitória da Conquista, Bahia 45029-094, Brazil
| | - Hernando Nascimento Lima
- Instituto Multidisciplinar em Saúde, Universidade Federal da Bahia, Programa de Pós-Graduação em Biociências, Vitória da Conquista, Bahia 45029-094, Brazil
| | - Caleb de Oliveira Flores
- Instituto Multidisciplinar em Saúde, Universidade Federal da Bahia, Programa de Pós-Graduação em Biociências, Vitória da Conquista, Bahia 45029-094, Brazil
| | - Caroline Assunção Oliveira
- Instituto Multidisciplinar em Saúde, Universidade Federal da Bahia, Programa de Pós-Graduação em Biociências, Vitória da Conquista, Bahia 45029-094, Brazil
| | - Larissa Esterfanne Cavalcante Cunha
- Instituto Multidisciplinar em Saúde, Universidade Federal da Bahia, Programa de Pós-Graduação em Biociências, Vitória da Conquista, Bahia 45029-094, Brazil
| | - Jonas Luz Neves
- Instituto Multidisciplinar em Saúde, Universidade Federal da Bahia, Programa de Pós-Graduação em Biociências, Vitória da Conquista, Bahia 45029-094, Brazil
| | - Thiago Macêdo Lopes Correia
- Instituto Multidisciplinar em Saúde, Universidade Federal da Bahia, Programa de Pós-Graduação em Biociências, Vitória da Conquista, Bahia 45029-094, Brazil
| | - Fabrício Freire de Melo
- Instituto Multidisciplinar em Saúde, Universidade Federal da Bahia, Programa de Pós-Graduação em Biociências, Vitória da Conquista, Bahia 45029-094, Brazil
| | - Márcio Vasconcelos Oliveira
- Instituto Multidisciplinar em Saúde, Universidade Federal da Bahia, Programa de Pós-Graduação em Biociências, Vitória da Conquista, Bahia 45029-094, Brazil
| | - Amélia Cristina Mendes de Magalhães
- Instituto Multidisciplinar em Saúde, Universidade Federal da Bahia, Programa de Pós-Graduação em Biociências, Vitória da Conquista, Bahia 45029-094, Brazil
| | - Telma de Jesus Soares
- Instituto Multidisciplinar em Saúde, Universidade Federal da Bahia, Programa de Pós-Graduação em Biociências, Vitória da Conquista, Bahia 45029-094, Brazil
| | - Liliany Souza de Brito Amaral
- Instituto Multidisciplinar em Saúde, Universidade Federal da Bahia, Programa de Pós-Graduação em Biociências, Vitória da Conquista, Bahia 45029-094, Brazil.
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Abstract
IMPACT STATEMENT Diabetic kidney disease (DKD) is associated with increased mortality in diabetic patients and has a negative impact on public health. The identification of potential therapies that help the management of DKD can contribute to the improvement of health and quality of life of patients. Thus, this paper is timely and relevant because, in addition to presenting a concise review of the pathogenesis and major pathophysiological mechanisms of DKD, it addresses the most recent findings on the impact of exercise training on this disease. Thus, since non-pharmacological interventions have gained increasing attention in the fight against chronic diseases, this paper appears as an important tool to increase knowledge and stimulate innovative research on the impact of exercise on kidney disease.
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Affiliation(s)
| | - Cláudia Silva Souza
- Departamento de Fisiologia, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, São Paulo 14049-900, Brazil
| | | | - Telma de Jesus Soares
- Instituto Multidisciplinar em Saúde, Universidade Federal da Bahia, Bahia 45029-094, Brazil
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Souza CS, de Sousa Oliveira BS, Viana GN, Correia TML, de Bragança AC, Canale D, Oliveira MV, de Magalhães ACM, Volpini RA, de Brito Amaral LS, de Jesus Soares T. Preventive effect of exercise training on diabetic kidney disease in ovariectomized rats with type 1 diabetes. Exp Biol Med (Maywood) 2019; 244:758-769. [PMID: 31042072 DOI: 10.1177/1535370219843830] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
IMPACT STATEMENT To date, no studies have been found evaluating the effects of physical exercise on renal function and structure changes in ovariectomized rats with type 1 diabetes. Therefore, this work emerges with an important tool for strengthening and expanding innovative research on exercise with potential for the prevention of renal diseases in ovariectomized diabetic rats, and future development of studies that seek to increase scientific knowledge about the beneficial effects of physical exercise on renal diseases in humans.
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Affiliation(s)
- Cláudia Silva Souza
- 1 Instituto Multidisciplinar em Saúde, Universidade Federal da Bahia, Programa de Pós-Graduação em Biociências, Vitória da Conquista, Bahia 45029-094, Brasil
| | - Bianca Silva de Sousa Oliveira
- 1 Instituto Multidisciplinar em Saúde, Universidade Federal da Bahia, Programa de Pós-Graduação em Biociências, Vitória da Conquista, Bahia 45029-094, Brasil
| | - Geovanildo Nascimento Viana
- 1 Instituto Multidisciplinar em Saúde, Universidade Federal da Bahia, Programa de Pós-Graduação em Biociências, Vitória da Conquista, Bahia 45029-094, Brasil
| | - Thiago Macêdo Lopes Correia
- 1 Instituto Multidisciplinar em Saúde, Universidade Federal da Bahia, Programa de Pós-Graduação em Biociências, Vitória da Conquista, Bahia 45029-094, Brasil
| | - Ana Carolina de Bragança
- 2 Departamento de Nefrologia, Laboratório de Pesquisa Básica-LIM12, Faculdade de Medicina da Universidade de São Paulo, São Paulo 01246-903, Brazil
| | - Daniele Canale
- 2 Departamento de Nefrologia, Laboratório de Pesquisa Básica-LIM12, Faculdade de Medicina da Universidade de São Paulo, São Paulo 01246-903, Brazil
| | - Márcio Vasconcelos Oliveira
- 1 Instituto Multidisciplinar em Saúde, Universidade Federal da Bahia, Programa de Pós-Graduação em Biociências, Vitória da Conquista, Bahia 45029-094, Brasil
| | - Amélia Cristina Mendes de Magalhães
- 1 Instituto Multidisciplinar em Saúde, Universidade Federal da Bahia, Programa de Pós-Graduação em Biociências, Vitória da Conquista, Bahia 45029-094, Brasil
| | - Rildo Aparecido Volpini
- 2 Departamento de Nefrologia, Laboratório de Pesquisa Básica-LIM12, Faculdade de Medicina da Universidade de São Paulo, São Paulo 01246-903, Brazil
| | - Liliany Souza de Brito Amaral
- 1 Instituto Multidisciplinar em Saúde, Universidade Federal da Bahia, Programa de Pós-Graduação em Biociências, Vitória da Conquista, Bahia 45029-094, Brasil
| | - Telma de Jesus Soares
- 1 Instituto Multidisciplinar em Saúde, Universidade Federal da Bahia, Programa de Pós-Graduação em Biociências, Vitória da Conquista, Bahia 45029-094, Brasil
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Silveira MORD, Amaral LSDB, Souza SID, Ferraz HR, Dias JA, Rocha EC, Silva FDA, Magalhães ACMD, Soares TDJ. Effect of moderate exercise on renal changes and oxidative stress in ovariectomized rats with type 1 diabetes mellitus. ACTA ACUST UNITED AC 2019. [DOI: 10.21472/bjbs.061302] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Abstract
This study evaluated the aerobic exercise effects of moderate and progressive intensity on renal function and structure, and oxidative stress in ovariectomized rats with type 1 diabetes mellitus induced by streptozotocin (STZ). Eighteen Wistar rats were divided into 3 groups: OSC - ovariectomized and sedentary control rats; OSD - ovariectomized and sedentary diabetic rats; and OTD - ovariectomized and trained diabetic rats. After induction of diabetes, the OTD group was submitted to eight weeks of exercise. Twenty-four hours after the last training session urine samples were collected. Blood samples and kidneys were collected after euthanasia for renal function analysis, histology, morphometry and oxidative stress. Our results have shown a reduction of the weight gain, increase of kidney weight and postprandial glycemia in diabetic rats. However, exercise decreased glycosuria and prevented the proteinuria in OTD group rats. Focal segmental glomerulosclerosis (FSGS), juxtamedullary glomerular tuft area, tubulointerstitial lesions (TIL), brush border loss and tubular cell debridement were reduced in OTD rats. In addition, exercise training decreased urinary and plasma concentrations of thiobarbituric acid reactive substance (TBARS). Our results demonstrate the beneficial effect of progressive aerobic exercise on proteinuria, glycosuria, and renal structure in ovariectomized diabetic rats, which may be mediated in part by reduction of oxidative stress.
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Coqueiro RDS, Soares TDJ, Pereira R, Correia TML, Coqueiro DSO, Oliveira MV, Marques LM, de Sá CKC, de Magalhães ACM. Therapeutic and preventive effects of exercise on cardiometabolic parameters in aging and obese rats. Clin Nutr ESPEN 2018; 29:203-212. [PMID: 30661688 DOI: 10.1016/j.clnesp.2018.10.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [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: 03/09/2018] [Revised: 07/13/2018] [Accepted: 10/06/2018] [Indexed: 12/16/2022]
Abstract
BACKGROUND AND AIMS Aging, obesity and sedentarism are among the most important predictors of cardiometabolic diseases. Aiming to reduce the impact of the combination of these three factors, we tested the therapeutic and preventive effects of exercise in aging and obese rats on the following cardiometabolic disease risk parameters: body fat, blood pressure, blood lipids, and glycemic homeostasis. METHODS Eighteen male Wistar rats (initial age = 4 months, and final age = 14 months) were randomly distributed into three aging and obese groups: sedentary, therapeutic exercise and preventive exercise. Food and caloric intake, body adiposity, muscle mass, cardiovascular parameters, biochemical markers, glycemic homeostasis, and gene expression of insulin-dependent, insulin-independent and insulin resistance pathways in skeletal muscle were evaluated. RESULTS Therapeutic and preventive exercises were associated with higher food and caloric intake, and expression of TBC1D1 in the soleus muscle, as well as lower total cholesterol/HDL and LDL/HDL ratios, glucose levels at the end (90 min) of the glucose tolerance test and IKBKB expression in the gastrocnemius and soleus muscles. Only the preventive exercise improved the cardiovascular and body composition parameters, glucose tolerance, insulin resistance and insulin sensitivity, besides reducing total cholesterol, triglycerides, triglycerides/HDL ratio, plasmatic insulin and MAPK8 expression in soleus. The preventive exercise group also presented greater expression of INRS, IRS1, IRS2, PIK3CA, AKT1, and SLC2A4 in gastrocnemius and soleus, TBC1D1 in gastrocnemius, and AKT2 and PRKAA1 in soleus. CONCLUSIONS Therapeutic exercise promoted some improvements on cardiometabolic parameters in aging and obese rats, however, the best benefits were achieved through the preventive exercise.
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Affiliation(s)
- Raildo da Silva Coqueiro
- Universidade Federal da Bahia, Instituto Multidisciplinar em Saúde, Programa Multicêntrico de Pós-Graduação em Ciências Fisiológicas, Vitória da Conquista, Brazil; Universidade Estadual do Sudoeste da Bahia, Departamento de Saúde, Jequié, Brazil.
| | - Telma de Jesus Soares
- Universidade Federal da Bahia, Instituto Multidisciplinar em Saúde, Programa Multicêntrico de Pós-Graduação em Ciências Fisiológicas, Vitória da Conquista, Brazil
| | - Rafael Pereira
- Universidade Estadual do Sudoeste da Bahia, Departamento de Ciências Biológicas, Jequié, Brazil
| | - Thiago Macêdo Lopes Correia
- Universidade Federal da Bahia, Instituto Multidisciplinar em Saúde, Programa Multicêntrico de Pós-Graduação em Ciências Fisiológicas, Vitória da Conquista, Brazil
| | | | | | - Lucas Miranda Marques
- Universidade Federal da Bahia, Instituto Multidisciplinar em Saúde, Programa Multicêntrico de Pós-Graduação em Ciências Fisiológicas, Vitória da Conquista, Brazil
| | | | - Amélia Cristina Mendes de Magalhães
- Universidade Federal da Bahia, Instituto Multidisciplinar em Saúde, Programa Multicêntrico de Pós-Graduação em Ciências Fisiológicas, Vitória da Conquista, Brazil
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Amaral LSDB, Souza CS, Volpini RA, Shimizu MHM, de Bragança AC, Canale D, Seguro AC, Coimbra TM, de Magalhães ACM, Soares TDJ. Previous Exercise Training Reduces Markers of Renal Oxidative Stress and Inflammation in Streptozotocin-Induced Diabetic Female Rats. J Diabetes Res 2018; 2018:6170352. [PMID: 29785400 PMCID: PMC5896236 DOI: 10.1155/2018/6170352] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/04/2017] [Accepted: 02/11/2018] [Indexed: 12/21/2022] Open
Abstract
The aim of this study is to evaluate the effects of regular moderate exercise training initiated previously or after induction of diabetes mellitus on renal oxidative stress and inflammation in STZ-induced diabetic female rats. For this purpose, Wistar rats were divided into five groups: sedentary control (SC), trained control (TC), sedentary diabetic (SD), trained diabetic (TD), and previously trained diabetic (PTD). Only the PTD group was submitted to treadmill running for 4 weeks previously to DM induction with streptozotocin (40 mg/kg, i.v). After confirming diabetes, the PTD, TD, and TC groups were submitted to eight weeks of exercise training. At the end of the training protocol, we evaluated the following: glycosuria, body weight gain, plasma, renal and urinary levels of nitric oxide and thiobarbituric acid reactive substances, renal glutathione, and immunolocalization of lymphocytes, macrophages, and nuclear factor-kappa B (NF-κB/p65) in the renal cortex. The results showed that exercise training reduced glycosuria, renal TBARS levels, and the number of immune cells in the renal tissue of the TD and PTD groups. Of note, only previous exercise increased weight gain and urinary/renal NO levels and reduced NF-κB (p65) immunostaining in the renal cortex of the PTD group. In conclusion, our study shows that exercise training, especially when initiated previously to diabetes induction, promotes protective effects in diabetic kidney by reduction of renal oxidative stress and inflammation markers in female Wistar rats.
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Affiliation(s)
- Liliany Souza de Brito Amaral
- Programa Multicêntrico de Pós-Graduação em Ciências Fisiológicas, Instituto Multidisciplinar em Saúde, Universidade Federal da Bahia, 45029-094 Vitória da Conquista, BA, Brazil
| | - Cláudia Silva Souza
- Programa Multicêntrico de Pós-Graduação em Ciências Fisiológicas, Instituto Multidisciplinar em Saúde, Universidade Federal da Bahia, 45029-094 Vitória da Conquista, BA, Brazil
| | - Rildo Aparecido Volpini
- Departamento de Nefrologia, Laboratório de Pesquisa Básica-LIM12, Faculdade de Medicina da Universidade de São Paulo, 01246-903 São Paulo, SP, Brazil
| | - Maria Heloisa Massola Shimizu
- Departamento de Nefrologia, Laboratório de Pesquisa Básica-LIM12, Faculdade de Medicina da Universidade de São Paulo, 01246-903 São Paulo, SP, Brazil
| | - Ana Carolina de Bragança
- Departamento de Nefrologia, Laboratório de Pesquisa Básica-LIM12, Faculdade de Medicina da Universidade de São Paulo, 01246-903 São Paulo, SP, Brazil
| | - Daniele Canale
- Departamento de Nefrologia, Laboratório de Pesquisa Básica-LIM12, Faculdade de Medicina da Universidade de São Paulo, 01246-903 São Paulo, SP, Brazil
| | - Antonio Carlos Seguro
- Departamento de Nefrologia, Laboratório de Pesquisa Básica-LIM12, Faculdade de Medicina da Universidade de São Paulo, 01246-903 São Paulo, SP, Brazil
| | - Terezila Machado Coimbra
- Departamento de Fisiologia, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, 14049-900 São Paulo, SP, Brazil
| | - Amélia Cristina Mendes de Magalhães
- Programa Multicêntrico de Pós-Graduação em Ciências Fisiológicas, Instituto Multidisciplinar em Saúde, Universidade Federal da Bahia, 45029-094 Vitória da Conquista, BA, Brazil
| | - Telma de Jesus Soares
- Programa Multicêntrico de Pós-Graduação em Ciências Fisiológicas, Instituto Multidisciplinar em Saúde, Universidade Federal da Bahia, 45029-094 Vitória da Conquista, BA, Brazil
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Silva BLL, Medeiros DL, Soares AP, Line SRP, Pinto MDGF, Soares TDJ, do Espírito Santo AR. Type 1 diabetes mellitus effects on dental enamel formation revealed by microscopy and microanalysis. J Oral Pathol Med 2017; 47:306-313. [PMID: 29243281 DOI: 10.1111/jop.12669] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/07/2017] [Indexed: 11/30/2022]
Abstract
BACKGROUND Type 1 diabetes mellitus (T1DM) largely affects children, occurring therefore at the same period of deciduous and permanent teeth development. The aim of this work was to investigate birefringence and morphology of the secretory stage enamel organic extracellular matrix (EOECM), and structural and mechanical features of mature enamel from T1DM rats. METHODS Adult Wistar rats were maintained alive for a period of 56 days after the induction of experimental T1DM with a single dose of streptozotocin (60 mg/kg). After proper euthanasia of the animals, fixed upper incisors were accurately processed, and secretory stage EOECM and mature enamel were analyzed by transmitted polarizing and bright field light microscopies (TPLM and BFLM), energy-dispersive x-ray (EDX) analysis, scanning electron microscopy (SEM), and microhardness testing. RESULTS Bright field light microscopies and transmitted polarizing light microscopies showed slight morphological changes in the secretory stage EOECM from diabetic rats, which also did not exhibit statistically significant alterations in birefringence brightness when compared to control animals (P > .05). EDX analysis showed that T1DM induced statistically significant little increases in the amount of calcium and phosphorus in outer mature enamel (P < .01) with preservation of calcium/phosphorus ratio in that structure (P > .05). T1DM also caused important ultrastructural alterations in mature enamel as revealed by SEM and induced a statistically significant reduction of about 13.67% in its microhardness at 80 μm from dentin-enamel junction (P < .01). CONCLUSIONS This study shows that T1DM may disturb enamel development, leading to alterations in mature enamel ultrastructure and in its mechanical features.
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Affiliation(s)
- Bruna Larissa Lago Silva
- Multidisciplinary Institute of Health, Federal University of Bahia-UFBA, Vitória da Conquista, Brazil
| | | | - Ana Prates Soares
- Multidisciplinary Institute of Health, Federal University of Bahia-UFBA, Vitória da Conquista, Brazil
| | | | | | - Telma de Jesus Soares
- Multidisciplinary Institute of Health, Federal University of Bahia-UFBA, Vitória da Conquista, Brazil
| | - Alexandre Ribeiro do Espírito Santo
- Laboratory of Orofacial Biology, Department of Biomorphology, Institute of Health Sciences, Federal University of Bahia-UFBA, Salvador, Brazil
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Golino HF, Amaral LSDB, Duarte SFP, Gomes CMA, Soares TDJ, dos Reis LA, Santos J. Predicting increased blood pressure using machine learning. J Obes 2014; 2014:637635. [PMID: 24669313 PMCID: PMC3941962 DOI: 10.1155/2014/637635] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/16/2013] [Revised: 10/12/2013] [Accepted: 11/16/2013] [Indexed: 01/21/2023] Open
Abstract
The present study investigates the prediction of increased blood pressure by body mass index (BMI), waist (WC) and hip circumference (HC), and waist hip ratio (WHR) using a machine learning technique named classification tree. Data were collected from 400 college students (56.3% women) from 16 to 63 years old. Fifteen trees were calculated in the training group for each sex, using different numbers and combinations of predictors. The result shows that for women BMI, WC, and WHR are the combination that produces the best prediction, since it has the lowest deviance (87.42), misclassification (.19), and the higher pseudo R (2) (.43). This model presented a sensitivity of 80.86% and specificity of 81.22% in the training set and, respectively, 45.65% and 65.15% in the test sample. For men BMI, WC, HC, and WHC showed the best prediction with the lowest deviance (57.25), misclassification (.16), and the higher pseudo R (2) (.46). This model had a sensitivity of 72% and specificity of 86.25% in the training set and, respectively, 58.38% and 69.70% in the test set. Finally, the result from the classification tree analysis was compared with traditional logistic regression, indicating that the former outperformed the latter in terms of predictive power.
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Affiliation(s)
- Hudson Fernandes Golino
- Laboratório de Investigação da Arquitetura Cognitiva, Universidade Federal de Minas Gerais, 30000-000 Belo Horizonte, Minas Gerais, MG, Brazil
- *Hudson Fernandes Golino:
| | | | - Stenio Fernando Pimentel Duarte
- Núcleo de Pós-Graduação, Pesquisa e Extenção, Faculdade Independente do Nordeste, São Luís Avenue, 1305, 45000-000 Candeias, Vitória da Conquista, BA, Brazil
| | - Cristiano Mauro Assis Gomes
- Laboratório de Investigação da Arquitetura Cognitiva, Universidade Federal de Minas Gerais, 30000-000 Belo Horizonte, Minas Gerais, MG, Brazil
| | - Telma de Jesus Soares
- Instituto Multidisciplinar de Saúde, Universidade Federal da Bahia, 40000-000 Bahia, BA, Brazil
| | - Luciana Araujo dos Reis
- Núcleo de Pós-Graduação, Pesquisa e Extenção, Faculdade Independente do Nordeste, São Luís Avenue, 1305, 45000-000 Candeias, Vitória da Conquista, BA, Brazil
| | - Joselito Santos
- Núcleo de Pós-Graduação, Pesquisa e Extenção, Faculdade Independente do Nordeste, São Luís Avenue, 1305, 45000-000 Candeias, Vitória da Conquista, BA, Brazil
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de Andrade EN, Gonçalves GKN, de Oliveira THC, Santos CSD, Souza CLSE, Firmes LB, de Magalhães ACM, Soares TDJ, Reis AMD, Belo NDO. Natriuretic peptide system: a link between fat mass and cardiac hypertrophy and hypertension in fat-fed female rats. ACTA ACUST UNITED AC 2011; 167:149-55. [PMID: 21237215 DOI: 10.1016/j.regpep.2010.12.009] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2010] [Revised: 08/27/2010] [Accepted: 12/29/2010] [Indexed: 11/30/2022]
Abstract
The present study was designed to develop an animal model of hypertension and cardiac hypertrophy associated with obesity in female rats. Furthermore, we studied the involvement of the natriuretic peptide system in the mechanisms of these conditions. Obesity was induced in Wistar rats by a high fat diet and ovariectomy. The rats were divided into four groups: ovariectomized or sham-operated with high-fat diet and ovariectomized or sham-operated with control diet. After 24 weeks of diet, rats were killed, and their tissues were removed. Cardiac atrial natriuretic peptide (ANP), clearance receptor (NPr-C) gene expression was determined by PCR. ANP concentrations were measured in plasma. Ovariectomized fat-fed rats (OF) showed increased body weight, visceral fat depot and blood pressure and decreased sodium excretion compared to other groups. Also, these rats showed higher heart-to-body weight and cell diameters of ventricular cardiomyocytes and lower cardiac ANP mRNA and plasma ANP than the control group. The adipocyte and renal NPr-C mRNA of OF rats were higher than the control group. These data showed that combined ovariectomy and high fat diet elicited obesity, hypertension and cardiac hypertrophy. These results suggest that the impairment of the natriuretic peptide system may be one of the mechanisms involved not only in development of hypertension but also in cardiac hypertrophy associated with obesity in ovariectomized rats.
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Affiliation(s)
- Everaldo Nery de Andrade
- Multidisciplinary Institute of Health, Federal University of Bahia, Av. Olívia Flores 3000, CEP: 45055-090, Vitória da Conquista, Bahia, Brazil
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de Jesus Soares T, Costa RS, de Mattos Coelho R, Alves da Silva CG, Coimbra TM. Angiotensin II and Endothelin in the Renal Cortex During the Evolution of Glycerol-Induced Acute Tubular Necrosis. Ren Fail 2009; 27:757-62. [PMID: 16350830 DOI: 10.1080/08860220500244781] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [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: 10/25/2022] Open
Abstract
Hypertonic glycerol injection is one of the most frequently used models of experimental acute renal failure. Late structural changes such as interstitial fibrosis in the renal cortex and tubular atrophy have been detected after severe acute tubular necrosis (ATN). The aim of this study was to investigate the expression of angiotensin II (AII) and endothelin during the evolution of the ATN induced by glycerol and their relationships with the late structural changes observed in the kidneys. Forty-nine male Wistar rats were injected with a 50% glycerol solution, 8 mL/kg, divided into equal amounts, each administered into one hind leg, and 18 with 0.15 M NaCl solution. Blood and urine samples were collected 1, 5, 30, and 60 days after the injections to quantify sodium and creatinine; the animals were killed and the kidneys removed for histologic and immunohistochemical studies. The results of the immunohistochemical studies were scored according to the extent of staining in the cortical tubulointerstitium. Glycerol-injected rats presented a transitory increase in plasma creatinine levels and in fractional sodium excretion. The immunohistochemical studies showed increased AII and endothelin staining in the renal cortex from rats killed 5 days after glycerol injection (p<0.001) compared with control that persisted until day 60. The animals killed on days 30 and 60 also presented chronic lesions (fibrosis, tubular dilatation, and atrophy) in the renal cortex, despite the recovery of renal function. AII and endothelin may have contributed to the development of renal fibrosis in these rats.
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de Jesus Soares T, Volpini RA, Francescato HDC, Costa RS, da Silva CGA, Coimbra TM. Effects of resveratrol on glycerol-induced renal injury. Life Sci 2007; 81:647-56. [PMID: 17698148 DOI: 10.1016/j.lfs.2007.06.032] [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: 03/01/2007] [Revised: 06/22/2007] [Accepted: 06/28/2007] [Indexed: 11/26/2022]
Abstract
Glycerol-induced renal lesions can have many causes, including increased oxidative stress and inflammation. Resveratrol, a polyphenolic phytoalexin found in grapes and red wine, is an antioxidant agent with anti-inflammatory effects. In the present study, we investigated the possible protective effect of resveratrol on glycerol-induced nephrotoxicity. Male Wistar rats were injected intramuscularly with 8 ml/kg of either 50% glycerol (n=18), glycerol+resveratrol (n=22), 0.15 M saline (n=14), saline+carboxymethylcellulose (n=10) or saline+resveratrol (n=8). The rats were killed 3 days after the injections, at which time the kidneys were removed for histological and immunohistochemical studies and lipid peroxidation determination. Blood and urine samples were collected in order to quantify sodium and creatinine. The results of the histological and immunohistochemical studies were scored according to the extent of damage and immunostaining, respectively, in the cortical tubulointerstitium. Lipid peroxidation was estimated by measuring malondialdehyde in renal tissue samples collected from control rats and glycerol-injected rats. By postinjection day 3, glycerol-only treated rats presented increases in plasma creatinine levels, as well as in fractional excretion of sodium and potassium (P<0.001). These increases were less pronounced in glycerol+resveratrol-treated rats (P<0.05). Cortical expression of macrophages, lymphocytes, nuclear factor-kappa B, heme oxygenase-1 and nitrotyrosine was greater in glycerol-treated rats than in controls (P<0.001). In addition, the histological findings for glycerol-treated rats were characteristic of acute tubular necrosis. Resveratrol attenuated all of these alterations (P<0.001). We conclude that resveratrol ameliorates glycerol-induced renal injury by suppressing the inflammatory process and by inhibiting lipid peroxidation.
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Affiliation(s)
- Telma de Jesus Soares
- Department of Physiology, University of São Paulo at Ribeirão Preto School of Medicine, Ribeirão Preto, São Paulo, 14049-900, Brazil
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de Jesus Soares T, Costa RS, Balbi APC, Coimbra TM. Inhibition of nuclear factor-kappa B activation reduces glycerol-induced renal injury. J Nephrol 2006; 19:439-48. [PMID: 17048201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
BACKGROUND Glycerol injection induces acute tubular necrosis that can progress to interstitial fibrosis. The oxidative stress seen in glycerol-treated animals can activate the nuclear factor kappa B (NF-kappa B) system. The aim of this study was to investigate the expression of NF-kappa B and mitogen-activated protein kinases (MAPKs) in the renal cortex and to determine its relationship with structural and functional renal changes in rats treated with glycerol or glycerol plus pyrrolidine dithiocarbamate (PDTC), a nonspecific NF-kappa B inhibitor with antioxidant properties. METHODS Male Wistar rats were injected intramuscularly with 8 ml/kg of either 50% glycerol (n=22), glycerol+PDTC (n=25) or 0.15 M saline (n=10). The rats were killed, and the kidneys removed at 5 or 30 days after injection. mmunohistochemical results were scored according to the extent of staining. Interstitial lesions were evaluated through morphometry. Lipid peroxidation was estimated by measuring malondialdehyde in urine samples from control rats and glycerol-injected rats. RESULTS By postinjection day 5, glycerol-only treated rats presented transitory increases in plasma creatinine levels, as well as in fractional excretion of sodium and potassium (p<0.001), which were attenuated in glycerol+PDTC treated rats (p<0.05). Cortical expression of macrophages and NF-kappa B was greater in glycerol-treated rats than in controls (p<0.001). Glycerol-induced histological nd immunohistochemical changes were attenuated by the addition of PDTC (p<0.001), which also reduced the glycerol-induced increase in urinary malondialdehyde (MDA) levels (p<0.05). CONCLUSIONS We conclude that PDTC attenuates glycerol-induced renal injury by reducing NF-kappa B expression and decreasing lipid peroxidation in the renal cortex.
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Affiliation(s)
- Telma de Jesus Soares
- Department of Physiology, School of Medicine, University of Sao Paulo at Ribeirao Preto, Ribeirao Preto, Sao Paulo, Brazil
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