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Tsosura TVS, Chiba FY, Mattera MSLC, Pereira RF, Cintra LTA, Conti LC, Santos RMD, Mateus JHP, Garbin CAS, Sumida DH. Maternal apical periodontitis is associated with insulin resistance in adult offspring. Int Endod J 2019; 52:1040-1050. [DOI: 10.1111/iej.13096] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Accepted: 02/11/2019] [Indexed: 12/19/2022]
Affiliation(s)
- T. V. S. Tsosura
- Department of Basic Sciences Multicenter Postgraduate Program in Physiological Sciences SBFisSchool of Dentistry São Paulo State University (UNESP) Araçatuba Brazil
| | - F. Y. Chiba
- Department of Children and Social DentistrySchool of Dentistry São Paulo State University (UNESP) Araçatuba Brazil
| | - M. S. L. C. Mattera
- Department of Basic Sciences Multicenter Postgraduate Program in Physiological Sciences SBFisSchool of Dentistry São Paulo State University (UNESP) Araçatuba Brazil
| | - R. F. Pereira
- Department of Basic Sciences Multicenter Postgraduate Program in Physiological Sciences SBFisSchool of Dentistry São Paulo State University (UNESP) Araçatuba Brazil
| | - L. T. A. Cintra
- Department of Restorative Dentistry School of Dentistry São Paulo State University (UNESP) Araçatuba Brazil
| | - L. C. Conti
- Department of Restorative Dentistry School of Dentistry São Paulo State University (UNESP) Araçatuba Brazil
| | - R. M. dos Santos
- Department of Basic Sciences Multicenter Postgraduate Program in Physiological Sciences SBFisSchool of Dentistry São Paulo State University (UNESP) Araçatuba Brazil
| | - J. H. P. Mateus
- Department of Basic Sciences Multicenter Postgraduate Program in Physiological Sciences SBFisSchool of Dentistry São Paulo State University (UNESP) Araçatuba Brazil
| | - C. A. S. Garbin
- Department of Children and Social DentistrySchool of Dentistry São Paulo State University (UNESP) Araçatuba Brazil
| | - D. H. Sumida
- Department of Basic Sciences Multicenter Postgraduate Program in Physiological Sciences SBFisSchool of Dentistry São Paulo State University (UNESP) Araçatuba Brazil
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Troiano JA, Potje SR, Graton ME, Cavalari P, Pereira AAF, Vale GT, Nakamune ACMS, Sumida DH, Tirapelli CR, Antoniali C. Decreased reactive oxygen species production and NOX1, NOX2, NOX4 expressions contribute to hyporeactivity to phenylephrine in aortas of pregnant SHR. Life Sci 2015; 144:178-84. [PMID: 26674464 DOI: 10.1016/j.lfs.2015.12.011] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2015] [Revised: 11/04/2015] [Accepted: 12/04/2015] [Indexed: 02/07/2023]
Abstract
AIMS We determined whether decreased reactive oxygen species (ROS) production in the aorta of pregnant spontaneously hypertensive rats (SHR) resulted in increased nitric oxide (NO) bioavailability and hyporeactivity to phenylephrine (PE). MAIN METHODS Systemic and aortic oxidative stress were measured in pregnant and non-pregnant Wistar rats and SHR. Furthermore, the hypotensive effects of apocynin (30 mg/kg) and Tempol (30 mg/kg) were analyzed. Intact aortic rings of pregnant and non-pregnant rats were stimulated with PE in the absence of or after incubation (30 min) with apocynin (100 μmol/L). The effect of apocynin on the concentrations of NO and ROS were measured in aortic endothelial cells (AEC) using DAF-2DA (10 mmol/L) and DHE (2.5 mmol/L), respectively. Western blotting was performed to analyze eNOS, NOX1, NOX2, NOX4 and SOD expression. ROS production was analyzed by the lucigenin chemiluminescence method. KEY FINDINGS Aortic oxidative stress and ROS concentration in AEC were reduced in pregnant Wistar rats and SHR, when compared to non-pregnant rats. ROS production and NOX1, NOX2 and NOX4 expression in the aortas were decreased in pregnant SHR, but not in pregnant Wistar rats. Increased eNOS expression in aortas and NO concentration in AEC were observed in pregnant Wistar rats and SHR. Apocynin reduced PE-induced vasoconstriction in the aortas of non-pregnant Wistar rats and SHR, and pregnant Wistar rats, but not in the aortas of pregnant SHR. SIGNIFICANCE Taken together, these results suggest that ROS production was decreased in the aortas of pregnant SHR and could contribute to higher NO bioavailability and hyporeactivity to PE in the aortas of pregnant SHR.
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Affiliation(s)
- J A Troiano
- Programa de Pós-Graduação Multicêntrico em Ciências Fisiológicas, SBFis, Brazil; Department of Basic Sciences, School of Dentistry of Araçatuba, UNESP - Univ Estadual Paulista, Araçatuba, São Paulo, Brazil
| | - S R Potje
- Programa de Pós-Graduação Multicêntrico em Ciências Fisiológicas, SBFis, Brazil; Department of Basic Sciences, School of Dentistry of Araçatuba, UNESP - Univ Estadual Paulista, Araçatuba, São Paulo, Brazil
| | - M E Graton
- Programa de Pós-Graduação Multicêntrico em Ciências Fisiológicas, SBFis, Brazil; Department of Basic Sciences, School of Dentistry of Araçatuba, UNESP - Univ Estadual Paulista, Araçatuba, São Paulo, Brazil
| | - P Cavalari
- Department of Basic Sciences, School of Dentistry of Araçatuba, UNESP - Univ Estadual Paulista, Araçatuba, São Paulo, Brazil; School of Pharmacy of Araçatuba, UNIP - Univ Paulista, Araçatuba, São Paulo, Brazil
| | - A A F Pereira
- Programa de Pós-Graduação Multicêntrico em Ciências Fisiológicas, SBFis, Brazil; Department of Basic Sciences, School of Dentistry of Araçatuba, UNESP - Univ Estadual Paulista, Araçatuba, São Paulo, Brazil
| | - G T Vale
- Department of Psychiatry Nursing and Human Sciences, College of Nursing of Ribeirão Preto, USP - University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - A C M S Nakamune
- Programa de Pós-Graduação Multicêntrico em Ciências Fisiológicas, SBFis, Brazil; Department of Basic Sciences, School of Dentistry of Araçatuba, UNESP - Univ Estadual Paulista, Araçatuba, São Paulo, Brazil
| | - D H Sumida
- Programa de Pós-Graduação Multicêntrico em Ciências Fisiológicas, SBFis, Brazil; Department of Basic Sciences, School of Dentistry of Araçatuba, UNESP - Univ Estadual Paulista, Araçatuba, São Paulo, Brazil
| | - C R Tirapelli
- Department of Psychiatry Nursing and Human Sciences, College of Nursing of Ribeirão Preto, USP - University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - C Antoniali
- Programa de Pós-Graduação Multicêntrico em Ciências Fisiológicas, SBFis, Brazil; Department of Basic Sciences, School of Dentistry of Araçatuba, UNESP - Univ Estadual Paulista, Araçatuba, São Paulo, Brazil.
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Cintra LTA, Samuel RO, Facundo ACS, Prieto AKC, Sumida DH, Bomfim SRM, Souza JC, Dezan-Júnior E, Gomes-Filho JE. Relationships between oral infections and blood glucose concentrations or HbA1c levels in normal and diabetic rats. Int Endod J 2013; 47:228-37. [DOI: 10.1111/iej.12136] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2012] [Accepted: 05/02/2013] [Indexed: 11/27/2022]
Affiliation(s)
- L. T. A. Cintra
- Department of Endodontics; Araçatuba Dental School; Univ Estadual Paulista (UNESP); Araçatuba Brazil
| | - R. O. Samuel
- Department of Endodontics; Araçatuba Dental School; Univ Estadual Paulista (UNESP); Araçatuba Brazil
| | - A. C. S. Facundo
- Department of Endodontics; Araçatuba Dental School; Univ Estadual Paulista (UNESP); Araçatuba Brazil
| | - A. K. C. Prieto
- Department of Endodontics; Araçatuba Dental School; Univ Estadual Paulista (UNESP); Araçatuba Brazil
| | - D. H. Sumida
- Department of Basic Science; Araçatuba Dental School; Univ Estadual Paulista (UNESP); Araçatuba Brazil
| | - S. R. M. Bomfim
- Department of Clinic and Surgery and Animal Reproduction; Araçatuba Veterinary Medicine; Univ Estadual Paulista (UNESP); Araçatuba Brazil
| | - J. C. Souza
- Department of Clinic and Surgery and Animal Reproduction; Araçatuba Veterinary Medicine; Univ Estadual Paulista (UNESP); Araçatuba Brazil
| | - E. Dezan-Júnior
- Department of Endodontics; Araçatuba Dental School; Univ Estadual Paulista (UNESP); Araçatuba Brazil
| | - J. E. Gomes-Filho
- Department of Endodontics; Araçatuba Dental School; Univ Estadual Paulista (UNESP); Araçatuba Brazil
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Lima FB, Machado UF, Bartol I, Seraphim PM, Sumida DH, Moraes SM, Hell NS, Okamoto MM, Saad MJ, Carvalho CR, Cipolla-Neto J. Pinealectomy causes glucose intolerance and decreases adipose cell responsiveness to insulin in rats. Am J Physiol 1998; 275:E934-41. [PMID: 9843734 DOI: 10.1152/ajpendo.1998.275.6.e934] [Citation(s) in RCA: 55] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Although the pineal gland influences several physiological systems, only a few studies have investigated its role in the intermediary metabolism. In the present study, male Wistar rats, pinealectomized or sham-operated 6 wk before the experiment, were submitted to both intravenous glucose tolerance tests (IVGTT) and insulin binding as well as glucose transport assays in isolated adipocytes. The insulin receptor tyrosine kinase activity was assessed in liver and muscle. The insulin secretory response during the IVGTT was impaired, particularly in the afternoon, and the glucose transport responsiveness was 33% lower in pinealectomized rats. However, no difference was observed in the insulin receptor number of adipocytes between groups as well as in insulin-stimulated tyrosine kinase activity, indicating that the initial steps in the insulin signaling were well conserved. Conversely, a 40% reduction in adipose tissue GLUT-4 content was detected. In conclusion, pinealectomy is responsible for both impaired insulin secretion and action, emphasizing the influence of the pineal gland on glucose metabolism.
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Affiliation(s)
- F B Lima
- Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of Sao Paulo, 05508-900 Sao Paulo, Brazil
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