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Machado MP, Schavinski AZ, Deluque AL, Volpato GT, Campos KE. The Treatment of Prednisone in Mild Diabetic Rats: Biochemical Parameters and Cell Response. Endocr Metab Immune Disord Drug Targets 2020; 20:797-805. [DOI: 10.2174/1871530319666191204130007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Revised: 11/01/2019] [Accepted: 11/13/2019] [Indexed: 12/19/2022]
Abstract
Background:
Limited studies have been carried out with prednisone (PRED) in treatment by
glucose intolerant individuals, even in this model the animals presented low blood glucose levels at
adulthood, by the high regenerative capacity of β-cell.
Objective:
The aim was to evaluate the effects of the treatment of PRED in mild diabetes on biochemical
and immunological biomarkers.
Methods:
Rats were randomly divided into four groups: control (C), treated control C+PRED (treatment
of 1.25 mg/Kg/day PRED); diabetic DM (mild diabetes) and treated diabetic DM+PRED (treatment
with same dose as C+PRED group). Untreated groups received vehicle, adjusted volume to body
weight. The treatment lasted 21 days and measured body weight, food and water intake, and glycemia
weekly. In the 3rd week, the Oral Glucose Tolerance Test (OGTT) and the Insulin Tolerance Test (ITT)
was performed. On the last day, the rats were killed and the blood was collected for biochemical analyzes,
leukogram and immunoglobulin G levels.
Results:
There was a significant decrease in body weight in mild diabetes; however, the treatment in
diabetic groups increased food intake, glycemia, and the number of total leukocytes, lymphocytes and
neutrophils. On the other hand, it decreased the levels of triglycerides, high-density and very lowdensity
lipoproteins. In addition, diabetic groups showed glucose intolerance and mild insulin resistance,
confirming that this model induces glucose intolerant in adult life.
Conclusion:
The results showed that the use of prednisone is not recommended for glucose intolerant
individuals and should be replaced in order to not to aggravate this condition.
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Affiliation(s)
- Mariana P.R. Machado
- Postgraduate Program in Pharmacology and Biotechnology, São Paulo State University (UNESP), Institute of Biosciences, Botucatu, Sao Paulo, Brazil
| | - Aline Z. Schavinski
- Department of Physiology, Faculty of Medicine of Ribeirao Preto, University of Sao Paulo, Sao Paulo, Brazil
| | - Amanda L. Deluque
- Department of Physiology, Faculty of Medicine of Ribeirao Preto, University of Sao Paulo, Sao Paulo, Brazil
| | - Gustavo T. Volpato
- Laboratory of System Physiology and Reproductive Toxicology, Institute of Biological Sciences and Health, Federal University of Mato Grosso (UFMT), Barra do Garcas, Mato Grosso, Brazil
| | - Kleber E. Campos
- Laboratory of System Physiology and Reproductive Toxicology, Institute of Biological Sciences and Health, Federal University of Mato Grosso (UFMT), Barra do Garcas, Mato Grosso, Brazil
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Miranda CA, Schönholzer TE, Klöppel E, Sinzato YK, Volpato GT, Damasceno DC, Campos KE. Repercussions of low fructose-drinking water in male rats. AN ACAD BRAS CIENC 2019; 91:e20170705. [PMID: 30785495 DOI: 10.1590/0001-3765201920170705] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Accepted: 07/09/2018] [Indexed: 01/09/2023] Open
Abstract
Fructose consumption has increased worldwide, and it has been associated with the development of metabolic diseases such as insulin resistance (IR) and steatosis. The aim was to evaluate if lower fructose concentrations may cause pancreatic structural abnormalities, leading to a glucose intolerance without steatosis in male rats. Young male rats orally received 7% fructose solution for 12 weeks. Body weight, food, water, and energy intake were measured. An oral glucose tolerance test (OGTT) was performed. After final experimental period, all rats were anaesthetized and killed. Blood samples were collected for biochemical analyses and organs (liver and pancreas) were processed for morphological analyses. Fructose consumption was not associated with lipid accumulation in liver. However, fructose administration was associated with an increased area under curve from OGTT and an increased percentage of insulin-positive cells, high beta cell mass and reduced pancreatic islet area. Fructose supplementation (7%) did not cause steatosis, but it led to abnormal morphology and function of pancreatic islet cells, contributing for glucose intolerance development. Our findings demonstrate that even low fructose concentrations may cause deleterious effects in animals.
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Affiliation(s)
- Carolina A Miranda
- Laboratório de Fisiologia de Sistemas e Toxicologia Reprodutiva, Instituto de Ciências Biológicas e da Saúde, Universidade Federal de Mato Grosso/UFMT, Avenida Valdon Varjão, 6390, 78600-000 Barra do Garças, MT, Brazil
| | - Tatiele E Schönholzer
- Laboratório de Fisiologia de Sistemas e Toxicologia Reprodutiva, Instituto de Ciências Biológicas e da Saúde, Universidade Federal de Mato Grosso/UFMT, Avenida Valdon Varjão, 6390, 78600-000 Barra do Garças, MT, Brazil
| | - Eduardo Klöppel
- Laboratório de Fisiologia de Sistemas e Toxicologia Reprodutiva, Instituto de Ciências Biológicas e da Saúde, Universidade Federal de Mato Grosso/UFMT, Avenida Valdon Varjão, 6390, 78600-000 Barra do Garças, MT, Brazil
| | - Yuri K Sinzato
- Laboratório de Pesquisa Experimental de Ginecologia e Obstetrícia, Faculdade de Medicina de Botucatu, Universidade Estadual Paulista/UNESP, Distrito de Rubião Junior, s/n, 18618-970 Botucatu, SP, Brazil
| | - Gustavo T Volpato
- Laboratório de Fisiologia de Sistemas e Toxicologia Reprodutiva, Instituto de Ciências Biológicas e da Saúde, Universidade Federal de Mato Grosso/UFMT, Avenida Valdon Varjão, 6390, 78600-000 Barra do Garças, MT, Brazil.,Laboratório de Pesquisa Experimental de Ginecologia e Obstetrícia, Faculdade de Medicina de Botucatu, Universidade Estadual Paulista/UNESP, Distrito de Rubião Junior, s/n, 18618-970 Botucatu, SP, Brazil
| | - Débora C Damasceno
- Laboratório de Pesquisa Experimental de Ginecologia e Obstetrícia, Faculdade de Medicina de Botucatu, Universidade Estadual Paulista/UNESP, Distrito de Rubião Junior, s/n, 18618-970 Botucatu, SP, Brazil
| | - Kleber E Campos
- Laboratório de Fisiologia de Sistemas e Toxicologia Reprodutiva, Instituto de Ciências Biológicas e da Saúde, Universidade Federal de Mato Grosso/UFMT, Avenida Valdon Varjão, 6390, 78600-000 Barra do Garças, MT, Brazil
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3
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Resende NM, Félix HR, Soré MR, M M A, Campos KE, Volpato GT. The effects of coconut oil supplementation on the body composition and lipid profile of rats submitted to physical exercise. AN ACAD BRAS CIENC 2018; 88:933-40. [PMID: 27192196 DOI: 10.1590/0001-3765201620150302] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2015] [Accepted: 07/21/2015] [Indexed: 11/22/2022] Open
Abstract
This study aims to verify the effects of coconut oil supplementation (COS) in the body composition and lipid profile of rats submitted to physical exercise. The animals (n=6 per group) were randomly assigned to: G1=Sedentary and Non-supplemented (Control Group), G2=Sedentary and Supplemented, G3=Exercised and Non-supplemented and G4=Exercised and Supplemented. The COS protocol used was 3 mL/Kg of body mass by gavage for 28 days. The physical exercise was the vertical jumping training for 28 days. It was determined the body mass parameters, Lee Index, blood glucose and lipid profile. The COS did not interfere with body mass, but the lean body mass was lower in G3 compared to G2. The final Lee Index classified G1 and G2 as obese (>30g/cm). The lipid profile showed total cholesterol was decreased in G3, LDL-c concentration was decreased in G2, triglycerides, VLDL-c and HDL-c concentrations were increased in G2 and G4 in relation to G1 and G3. The COS decreased LDL-c/HDL-c ratio. In conclusion, the COS associated or not to physical exercise worsen others lipid parameters, like triglycerides and VLDL-c level, showing the care with the use of lipid supplements.
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Affiliation(s)
- Nathália M Resende
- Instituto de Ciências Biológicas e da Saúde, Universidade Federal de Mato Grosso/ UFMT, Campus Universitário do Araguaia, Av. Universitária, 3500, 78698-000 Pontal do Araguaia, MT, Brasil, Universidade Federal de Mato Grosso, Universidade Federal de Mato Grosso, Instituto de Ciências Biológicas e da Saúde, Pontal do Araguaia MT , Brasil.,Instituto de Ciências Biológicas e da Saúde, Laboratório de Fisiologia de Sistemas e Toxicologia Reprodutiva, Universidade Federal de Mato Grosso/ UFMT, Campus Universitário do Araguaia, Av. Valdon Varjão, 6390, 78600-000 Barra do Garças, MT, Brasil, Universidade Federal de Mato Grosso, Universidade Federal de Mato Grosso, Instituto de Ciências Biológicas e da Saúde, Barra do Garças MT , Brasil
| | - Henrique R Félix
- Instituto de Ciências Biológicas e da Saúde, Universidade Federal de Mato Grosso/ UFMT, Campus Universitário do Araguaia, Av. Universitária, 3500, 78698-000 Pontal do Araguaia, MT, Brasil, Universidade Federal de Mato Grosso, Universidade Federal de Mato Grosso, Instituto de Ciências Biológicas e da Saúde, Pontal do Araguaia MT , Brasil
| | - Murillo R Soré
- Instituto de Ciências Biológicas e da Saúde, Universidade Federal de Mato Grosso/ UFMT, Campus Universitário do Araguaia, Av. Universitária, 3500, 78698-000 Pontal do Araguaia, MT, Brasil, Universidade Federal de Mato Grosso, Universidade Federal de Mato Grosso, Instituto de Ciências Biológicas e da Saúde, Pontal do Araguaia MT , Brasil
| | - Aníbal M M
- Instituto de Ciências Biológicas e da Saúde, Universidade Federal de Mato Grosso/ UFMT, Campus Universitário do Araguaia, Av. Universitária, 3500, 78698-000 Pontal do Araguaia, MT, Brasil, Universidade Federal de Mato Grosso, Universidade Federal de Mato Grosso, Instituto de Ciências Biológicas e da Saúde, Pontal do Araguaia MT , Brasil
| | - Kleber E Campos
- Instituto de Ciências Biológicas e da Saúde, Laboratório de Fisiologia de Sistemas e Toxicologia Reprodutiva, Universidade Federal de Mato Grosso/ UFMT, Campus Universitário do Araguaia, Av. Valdon Varjão, 6390, 78600-000 Barra do Garças, MT, Brasil, Universidade Federal de Mato Grosso, Universidade Federal de Mato Grosso, Instituto de Ciências Biológicas e da Saúde, Barra do Garças MT , Brasil
| | - Gustavo T Volpato
- Instituto de Ciências Biológicas e da Saúde, Laboratório de Fisiologia de Sistemas e Toxicologia Reprodutiva, Universidade Federal de Mato Grosso/ UFMT, Campus Universitário do Araguaia, Av. Valdon Varjão, 6390, 78600-000 Barra do Garças, MT, Brasil, Universidade Federal de Mato Grosso, Universidade Federal de Mato Grosso, Instituto de Ciências Biológicas e da Saúde, Barra do Garças MT , Brasil
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Pinheiro MS, Rodrigues LS, S L, Moraes-Souza RQ, Soares TS, Américo MF, Campos KE, Damasceno DC, Volpato GT. Effect of Bauhinia holophylla treatment in Streptozotocin-induced diabetic rats. AN ACAD BRAS CIENC 2017; 89:263-272. [PMID: 28225851 DOI: 10.1590/0001-3765201720160050] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2016] [Accepted: 11/28/2016] [Indexed: 12/16/2022] Open
Abstract
Bauhinia holophylla, commonly known as "cow's hoof", is widely used in Brazilian folk medicine for the diabetes treatment. Therefore, the aim of this study was at evaluating the aqueous extract effect of Bauhinia holophylla leaves treatment on the streptozotocin-induced diabetic rats. Diabetes was induced by Streptozotocin (40 mg/Kg) in female Wistar rats. Oral administration of aqueous extract of Bauhinia holophylla leaves was given to non-diabetic and diabetic rats at a dose of 400 mg/kg during 21 days. On day 17 of treatment, the Oral Glucose Tolerance Test was performed to determine the area under the curve. At the end of the treatment, the animals were anesthetized and blood was collected for serum biochemical parameters analysis. After treatment with Bauhinia holophylla extract, non-diabetic and diabetic rats presented no glycemic changes. On the other hand, the plant treatment decreased body weight and increased ALT and AST activities. In conclusion, the treatment with aqueous extract of B. holophylla leaves given to diabetic rats presented no hypoglycemic effect in nondiabetic animals and no antidiabetic effect in diabetic animals with the doses studied. In addition, the diabetic animals treated with the B. holophylla extract showed inconvenient effects and its indiscriminate consumption requires particular carefulness.
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Affiliation(s)
- Marcelo S Pinheiro
- Laboratório de Fisiologia de Sistemas e Toxicologia Reprodutiva, Instituto de Ciências Biológicas e da Saúde, Universidade Federal de Mato Grosso / UFMT, Av. Valdon Varjão, 6390, 78600-000 Barra do Garças, MT, Brazil
| | - Luhara S Rodrigues
- Laboratório de Fisiologia de Sistemas e Toxicologia Reprodutiva, Instituto de Ciências Biológicas e da Saúde, Universidade Federal de Mato Grosso / UFMT, Av. Valdon Varjão, 6390, 78600-000 Barra do Garças, MT, Brazil
| | - Leila S
- Laboratório de Fisiologia de Sistemas e Toxicologia Reprodutiva, Instituto de Ciências Biológicas e da Saúde, Universidade Federal de Mato Grosso / UFMT, Av. Valdon Varjão, 6390, 78600-000 Barra do Garças, MT, Brazil
| | - Rafaianne Q Moraes-Souza
- Laboratório de Fisiologia de Sistemas e Toxicologia Reprodutiva, Instituto de Ciências Biológicas e da Saúde, Universidade Federal de Mato Grosso / UFMT, Av. Valdon Varjão, 6390, 78600-000 Barra do Garças, MT, Brazil
| | - Thaigra S Soares
- Laboratório de Fisiologia de Sistemas e Toxicologia Reprodutiva, Instituto de Ciências Biológicas e da Saúde, Universidade Federal de Mato Grosso / UFMT, Av. Valdon Varjão, 6390, 78600-000 Barra do Garças, MT, Brazil
| | - Madileine F Américo
- Laboratório de Fisiologia de Sistemas e Toxicologia Reprodutiva, Instituto de Ciências Biológicas e da Saúde, Universidade Federal de Mato Grosso / UFMT, Av. Valdon Varjão, 6390, 78600-000 Barra do Garças, MT, Brazil
| | - Kleber E Campos
- Laboratório de Fisiologia de Sistemas e Toxicologia Reprodutiva, Instituto de Ciências Biológicas e da Saúde, Universidade Federal de Mato Grosso / UFMT, Av. Valdon Varjão, 6390, 78600-000 Barra do Garças, MT, Brazil
| | - Débora C Damasceno
- Laboratório de Pesquisa Experimental de Ginecologia e Obstetrícia, Faculdade de Medicina de Botucatu, Universidade Estadual Paulista / UNESP, Distrito de Rubião Jr. s/n, 18618-970 Botucatu, SP, Brazil
| | - Gustavo T Volpato
- Laboratório de Fisiologia de Sistemas e Toxicologia Reprodutiva, Instituto de Ciências Biológicas e da Saúde, Universidade Federal de Mato Grosso / UFMT, Av. Valdon Varjão, 6390, 78600-000 Barra do Garças, MT, Brazil.,Laboratório de Pesquisa Experimental de Ginecologia e Obstetrícia, Faculdade de Medicina de Botucatu, Universidade Estadual Paulista / UNESP, Distrito de Rubião Jr. s/n, 18618-970 Botucatu, SP, Brazil
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Damasceno DC, Sinzato YK, Bueno A, Dallaqua B, Lima PH, Calderon IMP, Rudge MVC, Campos KE. Metabolic profile and genotoxicity in obese rats exposed to cigarette smoke. Obesity (Silver Spring) 2013; 21:1596-601. [PMID: 23666719 DOI: 10.1002/oby.20152] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/09/2012] [Accepted: 10/24/2012] [Indexed: 01/22/2023]
Abstract
OBJECTIVE Experimental studies have shown that exposure to cigarette smoke has negative effects on lipid metabolism and oxidative stress status. Cigarette smoke exposure in nonpregnant and pregnant rats causes significant genotoxicity (DNA damage). However, no previous studies have directly evaluated the effects of obesity or the association between obesity and cigarette smoke exposure on genotoxicity. Therefore, the aim of the present investigation was to evaluate DNA damage levels, oxidative stress status and lipid profiles in obese Wistar rats exposed to cigarette smoke. DESIGN AND METHODS Female rats subcutaneously (s.c.) received a monosodium glutamate solution or vehicle (control) during the neonatal period to induce obesity. The rats were randomly distributed into three experimental groups: control, obese exposed to filtered air, and obese exposed to tobacco cigarette smoke. After a 2-month exposure period, the rats were anesthetized and killed to obtain blood samples for genotoxicity, lipid profile, and oxidative stress status analyses. RESULTS The obese rats exposed to tobacco cigarette smoke presented higher DNA damage, triglycerides, total cholesterol, free fatty acids, VLDL-c, HDL-c, and LDL-c levels compared to control and obese rats exposed to filtered air. Both obese groups showed reduced SOD activity. These results showed that cigarette smoke enhanced the effects of obesity. CONCLUSION In conclusion, the association between obesity and cigarette smoke exposure exacerbated the genotoxicity, negatively impacted the biochemical profile and antioxidant defenses and caused early glucose intolerance. Thus, the changes caused by cigarette smoke exposure can trigger the earlier onset of metabolic disorders associated with obesity, such as diabetes and metabolic syndrome.
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Affiliation(s)
- Debora C Damasceno
- Department of Gynecology and Obstetrics, Botucatu Medical School, Unesp/Univ. Estadual Paulista, Laboratory of Experimental Research in Gynecology and Obstetrics, São Paulo State, Brazil.
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Fernandes GSA, Arena AC, Campos KE, Volpato GT, Anselmo-Franci JA, Damasceno DC, Kempinas WG. Glutamate-induced obesity leads to decreased sperm reserves and acceleration of transit time in the epididymis of adult male rats. Reprod Biol Endocrinol 2012; 10:105. [PMID: 23216967 PMCID: PMC3558389 DOI: 10.1186/1477-7827-10-105] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/30/2012] [Accepted: 11/29/2012] [Indexed: 01/01/2023] Open
Abstract
BACKGROUND Given the established fact that obesity interferes with male reproductive functions, the present study aimed to evaluate sperm production in the testis and storage in the epididymis in a glutamate-induced model of obesity. METHODS Male rats were treated neonatally with monosodium glutamate (MSG) at doses of 4 mg/kg subcutaneously, or with saline solution (control group), on postnatal days 2, 4, 6, 8 and 10. On day 120, obesity was confirmed by the Lee index in all MSG-treated rats. After this, all animals from the two experimental groups were anesthetized and killed to evaluate body and reproductive organ weights, sperm parameters, plasma hormone levels (FSH, LH and testosterone), testicular and epididymal histo-morphometry and histopathology. RESULTS Significant reductions in absolute and relative weights of testis, epididymis, prostate and seminal vesicle were noted in MSG-treated animals. In these same animals plasma testosterone and follicle-stimulating hormone (FSH) concentrations were decreased, as well as sperm counts in the testis and epididymis and seminiferous epithelium height and tubular diameter. The sperm transit time was accelerated in obese rats. However, the number of Sertoli cells per seminiferous tubule and stereological findings on the epididymis were not markedly changed by obesity. CONCLUSIONS Neonatal MSG-administered model of obesity lowers sperm production and leads to a reduction in sperm storage in the epididymis of adult male rats. The acceleration of sperm transit time can have implications for the sperm quality of these rats.
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Affiliation(s)
- Glaura SA Fernandes
- Biological Sciences Center, State University of Londrina, UEL, Londrina, PR, Brazil
| | - Arielle C Arena
- Department of Morphology, Institute of Biosciences, UNESP - UnivEstadualPaulista, Botucatu, SP, Brazil
| | - Kleber E Campos
- Institute of Biological and Health Sciences, Federal University of Mato Grosso, UFMT, Barra do Garça, MT, Brazil
| | - Gustavo T Volpato
- Institute of Biological and Health Sciences, Federal University of Mato Grosso, UFMT, Barra do Garça, MT, Brazil
| | - Janete A Anselmo-Franci
- Department of Physiology, Ribeirão Preto Medical School, University of São Paulo, USP, Ribeirão Preto, SP, Brazil
| | - Débora C Damasceno
- Laboratory of Experimental Research on Gynecology and Obstetrics, Department of Gynecology and Obstetrics, Botucatu Medical School, UNESP - UnivEstadualPaulista, Botucatu, SP, Brazil
| | - Wilma G Kempinas
- Department of Morphology, Institute of Biosciences, UNESP - UnivEstadualPaulista, Botucatu, SP, Brazil
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Volpato GT, Calderon IMP, Sinzato S, Campos KE, Rudge MVC, Damasceno DC. Effect of Morus nigra aqueous extract treatment on the maternal-fetal outcome, oxidative stress status and lipid profile of streptozotocin-induced diabetic rats. J Ethnopharmacol 2011; 138:691-6. [PMID: 21986227 DOI: 10.1016/j.jep.2011.09.044] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2011] [Revised: 08/19/2011] [Accepted: 09/25/2011] [Indexed: 05/21/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Morus nigra, commonly known as black mulberry, is widely used in Brazilian folk medicine for the diabetes treatment. AIM OF THIS STUDY To evaluate the effect of Morus nigra aqueous extract treatment on maternal lipid and oxidative stress profile, reproductive outcomes, and also fetal anomaly incidence from diabetic and non-diabetic rats. MATERIALS AND METHODS Diabetes was induced by streptozotocin (40 mg/kg) in virgin female Wistar rats. Morus nigra leaf aqueous extract (400 mg/kg) was administered from day 0 to 20 of pregnancy. At day 21 of pregnancy, all rats were anesthetized and killed to obtain blood samples and maternal-fetal data. RESULTS AND CONCLUSION After treatment with Morus nigra extract, non-diabetic and diabetic rats presented no glycemic changes. Fetuses from diabetic dams, regardless of Morus nigra treatment, were small for pregnancy age. In diabetic dams, plant treatment caused reduced MDA, cholesterol, triglycerides and VLDL levels, and decreased placental index and weight as compared to diabetic group. The fetuses from diabetic rats treated with Morus nigra extract had lower frequency of skeletal and visceral anomalies as compared to diabetic group. Thus, Morus nigra leaf aqueous extract failed to control hyperglycemia in diabetic rats. However, Morus nigra treatment had antioxidant effect, contributing to reduce incidence of internal anomalies in offspring from diabetic dams.
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Affiliation(s)
- G T Volpato
- Laboratory of Experimental Research on Gynecology and Obstetrics, Botucatu Medical School, University Estadual Paulista_Unesp, Botucatu, São Paulo, Brazil
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Damasceno DC, Sinzato YK, Lima PH, de Souza MS, Campos KE, Dallaqua B, Calderon IM, Rudge MV, Volpato GT. Effects of exposure to cigarette smoke prior to pregnancy in diabetic rats. Diabetol Metab Syndr 2011; 3:20. [PMID: 21851636 PMCID: PMC3170573 DOI: 10.1186/1758-5996-3-20] [Citation(s) in RCA: 20] [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] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2011] [Accepted: 08/18/2011] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND The purpose of this study was to evaluate the effects of cigarette smoke exposure before pregnancy on diabetic rats and their offspring development. METHODS Diabetes was induced by streptozotocin and cigarette smoke exposure was conducted by mainstream smoke generated by a mechanical smoking device and delivered into a chamber. Diabetic female Wistar rats were randomly distributed in four experimental groups (n minimum = 13/group): nondiabetic (ND) and diabetic rats exposed to filtered air (D), diabetic rats exposed to cigarette smoke prior to and into the pregnancy period (DS) and diabetic rats exposed to cigarette smoke prior to pregnancy period (DSPP). At day 21 of pregnancy, rats were killed for maternal biochemical determination and reproductive outcomes. RESULTS The association of diabetes and cigarette smoke in DSPP group caused altered glycemia at term, reduced number of implantation and live fetuses, decreased litter and maternal weight, increased pre and postimplantation loss rates, reduced triglyceride and VLDL-c concentrations, increased levels of thiol groups and MDA. Besides, these dams presented increased SOD and GSH-Px activities. However, the increased antioxidant status was not sufficient to prevent the lipid peroxidation observed in these animals. CONCLUSION Despite the benefits stemming from smoking interruption during the pregnancy of diabetic rats, such improvement was insufficient to avoid metabolic alterations and provide an adequate intrauterine environment for embryofetal development. Therefore, these results suggest that it is necessary to cease smoking extensive time before planning pregnancy, since stopping smoking only when pregnancy is detected may not contribute effectively to fully adequate embryofetal development.
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Affiliation(s)
- Débora C Damasceno
- Botucatu Medical School, UNESP - Univ Estadual Paulista, Department of Gynecology and Obstetrics, Laboratory of Experimental Research in Gynecology and Obstetrics, São Paulo State, Brazil
| | - Yuri K Sinzato
- Botucatu Medical School, UNESP - Univ Estadual Paulista, Department of Gynecology and Obstetrics, Laboratory of Experimental Research in Gynecology and Obstetrics, São Paulo State, Brazil
| | - Paula H Lima
- Botucatu Medical School, UNESP - Univ Estadual Paulista, Department of Gynecology and Obstetrics, Laboratory of Experimental Research in Gynecology and Obstetrics, São Paulo State, Brazil
| | - Maricelma S de Souza
- Botucatu Medical School, UNESP - Univ Estadual Paulista, Department of Gynecology and Obstetrics, Laboratory of Experimental Research in Gynecology and Obstetrics, São Paulo State, Brazil
- Pharmacology Department, University of Marilia_UNIMAR, Marilia, São Paulo State, Brazil
| | - Kleber E Campos
- Botucatu Medical School, UNESP - Univ Estadual Paulista, Department of Gynecology and Obstetrics, Laboratory of Experimental Research in Gynecology and Obstetrics, São Paulo State, Brazil
- Institute of Biological and Health Sciences, University Center of Araguaia, Mato Grosso Federal University (UFMT), Mato Grosso, Brazil
| | - Bruna Dallaqua
- Botucatu Medical School, UNESP - Univ Estadual Paulista, Department of Gynecology and Obstetrics, Laboratory of Experimental Research in Gynecology and Obstetrics, São Paulo State, Brazil
| | - Iracema M Calderon
- Botucatu Medical School, UNESP - Univ Estadual Paulista, Department of Gynecology and Obstetrics, Laboratory of Experimental Research in Gynecology and Obstetrics, São Paulo State, Brazil
| | - Marilza V Rudge
- Botucatu Medical School, UNESP - Univ Estadual Paulista, Department of Gynecology and Obstetrics, Laboratory of Experimental Research in Gynecology and Obstetrics, São Paulo State, Brazil
| | - Gustavo T Volpato
- Botucatu Medical School, UNESP - Univ Estadual Paulista, Department of Gynecology and Obstetrics, Laboratory of Experimental Research in Gynecology and Obstetrics, São Paulo State, Brazil
- Institute of Biological and Health Sciences, University Center of Araguaia, Mato Grosso Federal University (UFMT), Mato Grosso, Brazil
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Fernandes GSA, Fernandez CDB, Campos KE, Damasceno DC, Anselmo-Franci JA, Kempinas WDG. Vitamin C partially attenuates male reproductive deficits in hyperglycemic rats. Reprod Biol Endocrinol 2011; 9:100. [PMID: 21794102 PMCID: PMC3199757 DOI: 10.1186/1477-7827-9-100] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.5] [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: 03/16/2011] [Accepted: 07/27/2011] [Indexed: 01/23/2023] Open
Abstract
BACKGROUND Hyperglycemia can impair the male reproductive system in experimental animals and in men during reproductive age. Studies have shown that vitamin C has some good effects on male reproductive system, and therefore vitamin C treatment could attenuate the dysfunctions in this system caused by hyperglycemia. Thus, the objective of this work was to evaluate whether vitamin C treatment could attenuate reproductive dysfunctions in hyperglycemic male rats. METHODS Adult male rats were divided into 3 groups: a normoglycemic (n = 10) and two hyperglycemic (that received a single dose of streptozotocin - 40 mg/kg BW). The two last groups (n = 10 per group) were divided into: hyperglycemic control (Hy) and hyperglycemic + 150 mg of vitamin C (HyC), by gavage during 30 consecutive days. The normoglycemic and hyperglycemic control groups received the vehicle (water). The first day after the treatment, the rats were anesthetized and killed to evaluate oxidative stress biomarkers (TBARS, SOD, GSHt and GSH-Px) in the erythrocytes, body and reproductive organ weights, sperm parameters, plasma hormone levels (FSH, LH and testosterone), testicular and epididymal histo-morphometry and histopathology. RESULTS Compared with the normoglycemic animals, hyperglycemic control rats showed reduced weight of the body and reproductive organ but testis weight was maintained. It was also observed reduction of testosterone and LH levels, seminiferous tubular diameter, sperm motility and sperm counts in the epididymis. In addition, there was an increase in morphological abnormalities on spermatozoa as well as in oxidative stress level. Vitamin C reduced the oxidative stress level, diminished the number of abnormal sperm, and increased testosterone and LH levels and seminiferous tubular diameter but did not show improvement of sperm motility in relation to the hyperglycemic control group. Hyperglycemia caused a rearrangement in the epididymal tissue components (stroma, ephitelium and lumen) as demonstrated by the stereological analysis results. However, this alteration was partially prevented by vitamin C treatment. CONCLUSIONS We conclude that vitamin C partially attenuated some male reproductive system dysfunctions in hyperglycemic rats.
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Affiliation(s)
- Glaura SA Fernandes
- Graduate Program in Cell and Structural Biology, Institute of Biology, University of Campinas - UNICAMP, Campinas, SP, Brazil
- Department of Morphology, Institute of Biosciences, UNESP - Univ Estadual Paulista, Botucatu, SP, Brazil
| | - Carla DB Fernandez
- Graduate Program in Cell and Structural Biology, Institute of Biology, University of Campinas - UNICAMP, Campinas, SP, Brazil
- Department of Morphology, Institute of Biosciences, UNESP - Univ Estadual Paulista, Botucatu, SP, Brazil
| | - Kleber E Campos
- Department of Gynecology and Obstetrics, Botucatu Medical School, UNESP - Univ Estadual Paulista, Botucatu, SP, Brazil
| | - Débora C Damasceno
- Department of Gynecology and Obstetrics, Botucatu Medical School, UNESP - Univ Estadual Paulista, Botucatu, SP, Brazil
| | - Janete A Anselmo-Franci
- Department of Morphology, Stomatology and Physiology, Dental School of Ribeirão Preto, University of São Paulo - USP, Ribeirão Preto, SP, Brazil
| | - Wilma DG Kempinas
- Department of Morphology, Institute of Biosciences, UNESP - Univ Estadual Paulista, Botucatu, SP, Brazil
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Fernandes GS, Gerardin DC, Assumpção TA, Campos KE, Damasceno DC, Pereira OC, Kempinas WD. Can vitamins C and E restore the androgen level and hypersensitivity of the vas deferens in hyperglycemic rats? Pharmacol Rep 2011; 63:983-91. [DOI: 10.1016/s1734-1140(11)70614-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2010] [Revised: 02/16/2011] [Indexed: 01/21/2023]
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Novelli ELB, Souza GA, Ebaid GMX, Rocha KKHR, Seiva FRF, Mani F, Campos KE, Sforcin JM. Energy expenditure and oxygen consumption as novel biomarkers of obesity-induced cardiac disease in rats. Obesity (Silver Spring) 2010; 18:1754-61. [PMID: 20035275 DOI: 10.1038/oby.2009.470] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
The purpose of the present study was to determine calorimetric parameters to predict obesity adverse effects on oxidative stress and cardiac energy metabolism. Male Wistar 24 rats were divided into three groups (n = 8): given standard chow and water (C), receiving standard chow and 30% sucrose in its drinking water (S), and given sucrose-rich diet and water (SRD). After 45 days, both S and SRD rats had obesity, serum oxidative stress, and dyslipidemic profile, but the body weight gain and feed efficiency (FE) were higher in SRD than in S, whereas the obesity-related oxidative stress, myocardial triacylglycerol accumulation, and enhanced cardiac lactate dehydrogenase (LDH) activity were higher in S than in SRD rats. Myocardial beta-hydroxyacyl coenzyme-A-dehydrogenase was lower in SRD and in S than in C, whereas glycogen was only depleted in S rats. Myocardial pyruvate dehydrogenase (PDH) was lowest in S rats indicating depressed glucose oxidation. There was higher myocardial LDH/citrate synthase (CS) ratio and lower adenosine triphosphate (ATP)-synthetase indicating delayed aerobic metabolism in S rats than in the others. Cardiac ATP-synthetase was positively correlated with energy expenditure, namely resting metabolic rate (RMR), and with oxygen consumption per body weight (VO(2)/body weight). Myocardial lipid hydroperoxide (LH)/ total antioxidant substances (TAS) ratio and triacylglycerol accumulation were negatively correlated with RMR and with VO(2)/body weight. In conclusion, the present study brought new insights into obesity because the study demonstrated for the first time that reduced energy expenditure and oxygen consumption may provide novel risk factors of obesity-induced reduced energy generation for myocardial contractile function. The results serve to highlight the role of calorimetric changes as novel biomarkers of risk to obesity-induced cardiac effects.
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Affiliation(s)
- Ethel L B Novelli
- Department of Chemistry and Biochemistry, Institute of Biological Sciences, São Paulo State University, Botucatu, São Paulo, Brazil
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Campos KE, Volpato GT, Calderon IMP, Rudge MVC, Damasceno DC. Effect of obesity on rat reproduction and on the development of their adult offspring. ACTA ACUST UNITED AC 2008; 41:122-5. [PMID: 18235969 DOI: 10.1590/s0100-879x2008005000001] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2006] [Accepted: 11/30/2007] [Indexed: 11/22/2022]
Abstract
The aim of the present study was to assess the reproductive parameters of obese Wistar rats and to determine the frequency of their obese adult offspring. Neonatal rats were divided into two groups: F1 generation, induced to obesity by monosodium glutamate (MSG; F1MSG, N = 30), and rats given saline (F1CON, N = 13). At 90 days of age all animals were mated, producing the F2 offspring (F2CON, N = 28; F2MSG, N = 15). Reproductive parameters (fertility, pregnancy, and delivery indexes) were evaluated in F1 rats. F2 newborns were weighed, and the obesity parameter for F1 and F2 generations was determined from months 5 to 7 of life. At month 7, periovarian fat was weighed and no differences were found. Mean newborn weight also did not differ. The F1 and F2MSG groups presented approximately 90% of obese rats since month 5 of life, whereas F1 and F2CON groups presented only 33%. There was no difference in periovarian weight among groups. Although obesity did not affect reproductive parameters, obese dams (F1MSG) were responsible for the appearance of obesity in the subsequent generation. Thus, obesity induced by neonatal MSG administration did not interfere with reproduction, but did provide a viable model for obesity in second-generation adult Wistar rats. This model might contribute to a better understanding of the pathophysiological mechanisms involved in transgenerational obesity.
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Affiliation(s)
- K E Campos
- Departamento de Ginecologia e Obstetrícia, Faculdade de Medicina de Botucatu, Universidade Estadual Paulista, Botucatu, SP, Brasil
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Diniz YS, Fernandes AAH, Campos KE, Mani F, Ribas BO, Novelli ELB. Toxicity of hypercaloric diet and monosodium glutamate: oxidative stress and metabolic shifting in hepatic tissue. Food Chem Toxicol 2004; 42:313-19. [PMID: 14667476 DOI: 10.1016/j.fct.2003.09.006] [Citation(s) in RCA: 51] [Impact Index Per Article: 2.6] [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: 11/22/2022]
Abstract
The present study examines the effects of a hypercaloric diet on hepatic glucose metabolism of young rats, with and without monosodium glutamate (MSG) administration, and the association of these treatments with evaluating markers of oxidative stress. Male weaned Wistar rats (21 days old) from mothers fed with a hypercaloric diet or a normal diet, were divided into four groups (n=6): control (C) fed with control diet; (MSG) treated with MSG (4 mg/g) and control diet; (HD) fed with hypercaloric diet and (MSG-HD) treated with MSG and HD. Rats were sacrificed after the oral glucose tolerance test (OGTT), at 45 days of treatments. Serum was used for insulin determination. Glycogen, hexokinase(HK), glucose-6-phosphatase(G6PH), lipid hydroperoxide, superoxide dismutase(SOD) and glutathione peroxidase(GSH-Px) were determined in liver. HD rats showed hypoglycemia, hyperinsulinemia, and high hepatic glycogen, HK and decreased G6PH. MSG and MSG-HD had hyperinsulinemia, hyperglycemia, decreased HK and increased G6PH in hepatic tissue. These animals had impaired OGTT. HD, MSG and MSG-HD groups had increased lipid hydroperoxide and decreased SOD in hepatic tissue. Hypercaloric diet and monosodium glutamate administration induced alterations in metabolic rate of glucose utilization and decreased antioxidant defenses. Therefore, the hepatic glucose metabolic shifting induced by HD intake and MSG administration were associated with oxidative stress in hepatic tissue.
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Affiliation(s)
- Yeda S Diniz
- Post Graduation Course Department of Clinical and Cardiology, Faculty of Medicine, UNESP, Botucatu, São Paulo, Brazil
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Campos KE, Diniz YS, Cataneo AC, Faine LA, Alves MJQF, Novelli ELB. Hypoglycaemic and antioxidant effects of onion, Allium cepa: dietary onion addition, antioxidant activity and hypoglycaemic effects on diabetic rats. Int J Food Sci Nutr 2003; 54:241-6. [PMID: 12775373 DOI: 10.1080/09637480120092062] [Citation(s) in RCA: 61] [Impact Index Per Article: 2.9] [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: 10/26/2022]
Abstract
The purpose of the present study was to discover the relative potency of onion, Allium cepa, with respect to its hypoglycaemic and hypolipidaemic effects on the diabetic situation, and the association of these effects with the potential against oxidative stress. Male Wistar rats were divided into four groups. A normal control (group A), and a non-diabetic group (group B) were treated daily with 1 ml A. cepa solution (0.4 g A. cepa/rat). Groups C and D were made diabetic by an intraperitoneal injection of streptozotocin (STZ) (60 mg/kg body weight) in citrate buffer (pH 6.3). These animals (groups C and D) were the STZ diabetic control and STZ diabetic rats with onion intake, respectively. Onion increased the fasting serum high-density lipoprotein levels, and demonstrated alleviation of hyperglycaemia in STZ diabetic rats. The hypoglycaemic and hypolipidaemic actions of A. cepa were associated with antioxidant activity, since onion decreased superoxide dismutase activities while no increased lipid hydroperoxide and lipoperoxide concentrations were observed in diabetic rats treated with A. cepa.
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Affiliation(s)
- K E Campos
- Department of Chemistry and Biochemistry, Institute of Biological Sciences, University of São Paulo State, UNESP, Botucatu, São Paulo, Brazil
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