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Chitolina R, Nicola P, Sachett A, Bevilaqua F, Cunico L, Reginatto A, Bertoncello K, Marins K, Zanatta AP, Medeiros M, Lima AS, Parisotto C, Menegatt JCO, Goetten AF, Zimermann FC, Ramos AT, Portela VM, Barreta MH, Conterato GMM, Zanatta L. Subacute exposure to Roundup® changes steroidogenesis and gene expression of the glutathione-glutaredoxin system in rat ovaries: Implications for ovarian toxicity of this glyphosate-based herbicide. Toxicol Appl Pharmacol 2023; 473:116599. [PMID: 37328116 DOI: 10.1016/j.taap.2023.116599] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Revised: 05/03/2023] [Accepted: 06/10/2023] [Indexed: 06/18/2023]
Abstract
Studies have indicated that glyphosate induces endocrine disruption and may adversely affect the male reproductive system. However, evidence of its effects on ovarian function is poorly understood so far, making further studies necessary on the mechanisms of the glyphosate toxicity in the female reproductive system. The aim of this work was to evaluate the effect of a subacute exposure (28 days) to the glyphosate-based formulation Roundup® (1.05, 10.5 and 105 μg/kg b.w. of glyphosate) on steroidogenesis, oxidative stress, systems involved in cell redox control and histopathological parameters in rat ovaries. Hence we quantify plasma estradiol and progesterone by chemiluminescence; non-protein thiol levels, TBARS, superoxide dismutase and catalase activity by spectrophotometry; gene expression of steroidogenic enzymes and redox systems by real-time PCR; and ovarian follicles by optical microscopy. Our results demonstrated that oral exposure increased progesterone levels and the mRNA expression of 3β-hydroxysteroid dehydrogenase. Histopathological analysis revealed a decrease in the number of primary follicles and an increase in the number of corpus luteum in rats exposed to Roundup®. An imbalance of the oxidative status was also evidenced by decreasing the catalase activity at all groups exposed to the herbicide. Increased lipid peroxidation and gene expression of glutarredoxin and decreased of glutathione reductase were also observed. Our results indicate that Roundup® causes endocrine disruption of hormones related to female fertility and reproduction and changes the oxidative status by altering antioxidant activity, inducing lipid peroxidation, as well as changing the gene expression of the glutathione-glutarredoxin system in rat ovaries.
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Affiliation(s)
- Rafael Chitolina
- Universidade Comunitária da Região de Chapecó, Avenida Senador Atílio Fontana, 591E, 89809-000 Chapecó, SC, Brazil
| | - Patrícia Nicola
- Universidade Comunitária da Região de Chapecó, Avenida Senador Atílio Fontana, 591E, 89809-000 Chapecó, SC, Brazil
| | - Adrieli Sachett
- Universidade Comunitária da Região de Chapecó, Avenida Senador Atílio Fontana, 591E, 89809-000 Chapecó, SC, Brazil
| | - Fernanda Bevilaqua
- Universidade Comunitária da Região de Chapecó, Avenida Senador Atílio Fontana, 591E, 89809-000 Chapecó, SC, Brazil
| | - Lemen Cunico
- Universidade Comunitária da Região de Chapecó, Avenida Senador Atílio Fontana, 591E, 89809-000 Chapecó, SC, Brazil
| | - Alissara Reginatto
- Universidade Comunitária da Região de Chapecó, Avenida Senador Atílio Fontana, 591E, 89809-000 Chapecó, SC, Brazil
| | - Kanandra Bertoncello
- Universidade Comunitária da Região de Chapecó, Avenida Senador Atílio Fontana, 591E, 89809-000 Chapecó, SC, Brazil
| | - Katiuska Marins
- Universidade Comunitária da Região de Chapecó, Avenida Senador Atílio Fontana, 591E, 89809-000 Chapecó, SC, Brazil
| | - Ana Paula Zanatta
- Universidade Comunitária da Região de Chapecó, Avenida Senador Atílio Fontana, 591E, 89809-000 Chapecó, SC, Brazil
| | - Marta Medeiros
- Universidade Luterana do Brasil, Departamento de Ciências da Saúde, Canoas, RS, Brazil
| | - Acauane S Lima
- Universidade Federal de Santa Catarina, Centro de Ciências Rurais, Campus de Curitibanos, Rodovia Ulisses Gaboardi-Km 3, 89520-000 Curitibanos, SC, Brazil
| | - Cristiane Parisotto
- Universidade Federal de Santa Catarina, Centro de Ciências Rurais, Campus de Curitibanos, Rodovia Ulisses Gaboardi-Km 3, 89520-000 Curitibanos, SC, Brazil
| | - Jean Carlo O Menegatt
- Universidade Federal de Santa Catarina, Centro de Ciências Rurais, Campus de Curitibanos, Rodovia Ulisses Gaboardi-Km 3, 89520-000 Curitibanos, SC, Brazil
| | - André F Goetten
- Universidade Federal de Santa Catarina, Centro de Ciências Rurais, Campus de Curitibanos, Rodovia Ulisses Gaboardi-Km 3, 89520-000 Curitibanos, SC, Brazil
| | - Francielli C Zimermann
- Universidade Federal de Santa Catarina, Centro de Ciências Rurais, Campus de Curitibanos, Rodovia Ulisses Gaboardi-Km 3, 89520-000 Curitibanos, SC, Brazil
| | - Adriano T Ramos
- Universidade Federal de Santa Catarina, Centro de Ciências Rurais, Campus de Curitibanos, Rodovia Ulisses Gaboardi-Km 3, 89520-000 Curitibanos, SC, Brazil
| | - Valério M Portela
- Universidade Federal de Santa Catarina, Centro de Ciências Rurais, Campus de Curitibanos, Rodovia Ulisses Gaboardi-Km 3, 89520-000 Curitibanos, SC, Brazil
| | - Marcos H Barreta
- Universidade Federal de Santa Catarina, Centro de Ciências Rurais, Campus de Curitibanos, Rodovia Ulisses Gaboardi-Km 3, 89520-000 Curitibanos, SC, Brazil
| | - Greicy Michelle M Conterato
- Universidade Federal de Santa Catarina, Centro de Ciências Rurais, Campus de Curitibanos, Rodovia Ulisses Gaboardi-Km 3, 89520-000 Curitibanos, SC, Brazil
| | - Leila Zanatta
- Universidade Comunitária da Região de Chapecó, Avenida Senador Atílio Fontana, 591E, 89809-000 Chapecó, SC, Brazil; Universidade do Estado de Santa Catarina, Centro de Educação Superior do Oeste, Departamento de Enfermagem, Rua 7 de Setembro 77-D, Centro, 89806-152 Chapecó, SC, Brazil.
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Pothion H, Lihrmann I, Duclos C, Riou G, Cartier D, Boukhzar L, Lefranc B, Leprince J, Guérout N, Marie JP, Anouar Y. The SELENOT mimetic PSELT promotes nerve regeneration by increasing axonal myelination in a facial nerve injury model in female rats. J Neurosci Res 2022; 100:1721-1731. [PMID: 35730417 PMCID: PMC9545325 DOI: 10.1002/jnr.25098] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Revised: 03/17/2022] [Accepted: 06/06/2022] [Indexed: 01/31/2023]
Abstract
Peripheral nerve injury (PNI) is frequent and many patients suffer lifelong disabilities in severe cases. Although the peripheral nervous system is able to regenerate, its potential is limited. In this study, we tested in a nerve regeneration model in rat the potential beneficial effect of a short mimetic peptide, named PSELT, which derives from SELENOT, an essential thioredoxin-like selenoprotein endowed with neuroprotective and antioxidant activities. For this purpose, the right facial nerve of female Long-Evans rats was axotomized then bridged with a free femoral vein interposition graft. PSELT (1 μM) was injected into the vein immediately and 48 h after the injury, and the effects observed were compared to those found after an end-to-end suture used as a gold standard treatment. Whisking behavior, electrophysiological potential, and histological analyses were performed 3 months after injury to determine the effects of these treatments. These analyses revealed that PSELT-treated animals exhibit a better motor recovery in terms of protraction amplitude and velocity of vibrissae compared to control and end-sutured nerve animal groups. Moreover, administration of PSELT following injury enhanced muscle innervation, axonal elongation, and myelination of newly formed nerve fibers. Altogether, these results indicate that a PSELT-based treatment is sufficient to enhance facial nerve myelination and regeneration and could represent a new therapeutic tool to treat PNI.
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Affiliation(s)
- Hugo Pothion
- Normandie Univ, UNIROUEN, INSERM U1239, Neuroendocrine, Endocrine and Germinal Differentiation and Communication Laboratory, Institute for Research and Innovation in Biomedicine (IRIB), Rouen, France.,Normandie Univ, UNIROUEN, UR 3830, Groupe de Recherche sur l'Handicap Ventilatoire et Neurologique, Institute for Research and Innovation in Biomedicine (IRIB), Rouen, France.,Fédération Hospitalo-Universitaire (FHU) Surface, Rouen, France
| | - Isabelle Lihrmann
- Normandie Univ, UNIROUEN, INSERM U1239, Neuroendocrine, Endocrine and Germinal Differentiation and Communication Laboratory, Institute for Research and Innovation in Biomedicine (IRIB), Rouen, France
| | - Celia Duclos
- Normandie Univ, UNIROUEN, UR 3830, Groupe de Recherche sur l'Handicap Ventilatoire et Neurologique, Institute for Research and Innovation in Biomedicine (IRIB), Rouen, France
| | - Gaëtan Riou
- Normandie Univ, UNIROUEN, INSERM U1234, Institute for Research and Innovation in Biomedicine (IRIB), Rouen, France
| | - Dorthe Cartier
- Normandie Univ, UNIROUEN, INSERM U1239, Neuroendocrine, Endocrine and Germinal Differentiation and Communication Laboratory, Institute for Research and Innovation in Biomedicine (IRIB), Rouen, France
| | - Loubna Boukhzar
- Normandie Univ, UNIROUEN, INSERM U1239, Neuroendocrine, Endocrine and Germinal Differentiation and Communication Laboratory, Institute for Research and Innovation in Biomedicine (IRIB), Rouen, France
| | - Benjamin Lefranc
- Normandie Univ, UNIROUEN, INSERM U1239, Neuroendocrine, Endocrine and Germinal Differentiation and Communication Laboratory, Institute for Research and Innovation in Biomedicine (IRIB), Rouen, France.,Normandie Univ, UNIROUEN, UMS-UAR HERACLES, PRIMACEN, Cell Imaging Platform of Normandy, Institute for Research and Innovation in Biomedicine (IRIB), Rouen, France
| | - Jérôme Leprince
- Normandie Univ, UNIROUEN, INSERM U1239, Neuroendocrine, Endocrine and Germinal Differentiation and Communication Laboratory, Institute for Research and Innovation in Biomedicine (IRIB), Rouen, France.,Normandie Univ, UNIROUEN, UMS-UAR HERACLES, PRIMACEN, Cell Imaging Platform of Normandy, Institute for Research and Innovation in Biomedicine (IRIB), Rouen, France
| | - Nicolas Guérout
- Normandie Univ, UNIROUEN, UR 3830, Groupe de Recherche sur l'Handicap Ventilatoire et Neurologique, Institute for Research and Innovation in Biomedicine (IRIB), Rouen, France.,Fédération Hospitalo-Universitaire (FHU) Surface, Rouen, France
| | - Jean-Paul Marie
- Normandie Univ, UNIROUEN, UR 3830, Groupe de Recherche sur l'Handicap Ventilatoire et Neurologique, Institute for Research and Innovation in Biomedicine (IRIB), Rouen, France.,Fédération Hospitalo-Universitaire (FHU) Surface, Rouen, France.,Otorhinolaryngology and Head Neck Surgery Department, Rouen University Hospital, Rouen, France
| | - Youssef Anouar
- Normandie Univ, UNIROUEN, INSERM U1239, Neuroendocrine, Endocrine and Germinal Differentiation and Communication Laboratory, Institute for Research and Innovation in Biomedicine (IRIB), Rouen, France.,Fédération Hospitalo-Universitaire (FHU) Surface, Rouen, France
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Wang Q, Yu K, Wang J, Lin H, Wu Y, Wang W. Predator stress-induced persistent emotional arousal is associated with alterations of plasma corticosterone and hippocampal steroid receptors in rat. Behav Brain Res 2012; 230:167-74. [DOI: 10.1016/j.bbr.2012.01.051] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2011] [Revised: 01/24/2012] [Accepted: 01/28/2012] [Indexed: 12/15/2022]
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Lagoda G, Xie Y, Sezen SF, Hurt KJ, Liu L, Musicki B, Burnett AL. FK506 neuroprotection after cavernous nerve injury is mediated by thioredoxin and glutathione redox systems. J Sex Med 2011; 8:3325-34. [PMID: 21995851 DOI: 10.1111/j.1743-6109.2011.02500.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
INTRODUCTION Immunophilin ligands such as FK506 (FK) preserve erectile function (EF) following cavernous nerve injury (CNI), although the precise mechanisms are unclear. We examined whether the thioredoxin (Trx) and glutathione (GSH) redox systems mediate this effect after CNI. AIM To investigate the roles of Trx reductase 2 (TrxR2) and S-Nitrosoglutathione reductase (GSNOR) as antioxidative/nitrosative and antiapoptotic mediators of the neuroprotective effect of FK in the penis after CNI. METHODS Adult male rats, wild-type (WT) mice, and GSNOR deficient (GSNOR -/-) mice were divided into four groups: sham surgery (CN [cavernous nerves] exposure only) + vehicle; sham surgery + FK (5 mg/kg/day/rat or 2 mg/kg/day/mouse, for 2 days, subcutaneous); CNI + vehicle; and CNI + FK. At day 4 after injury, electrically stimulated changes in intracavernosal pressure (ICP) were measured. Penises were collected for Western blot analysis of TrxR2, GSNOR, and Bcl-2, and for immunolocalization of TrxR2 and GSNOR. MAIN OUTCOME MEASURES EF assessment represented by maximal ICP and total ICP in response to electrical stimulation. Evaluation of protein expression levels and distribution patterns of antioxidative/nitrosative and antiapoptotic factors in penile tissue. RESULTS EF decreased after CNI compared with sham surgery values in both rats (P < 0.01) and WT and GSNOR -/- mice (P < 0.05). FK treatment preserved EF after CNI compared with vehicle treatment in rats (P < 0.01) and WT mice (P < 0.05) but not in GSNOR -/- mice. In rats, GSNOR (P < 0.01) and Bcl-2 (P < 0.05) expressions were significantly decreased after CNI. FK treatment in CN-injured rats restored expression of GSNOR and upregulated TrxR2 (P < 0.001) and Bcl-2 (P < 0.001) expressions compared with vehicle treatment. Localizations of proteins in the penis were observed for TrxR2 (endothelium, smooth muscle) and for GSNOR (nerves, endothelium, smooth muscle). CONCLUSIONS The neuroprotective effect of FK in preserving EF after CNI involves antioxidative/nitrosative and antiapoptotic mechanisms mediated, to some extent, by Trx and GSH systems.
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Affiliation(s)
- Gwen Lagoda
- Department of Urology, The James Buchanan Brady Urological Institute, The Johns Hopkins Hospital and The Johns Hopkins University School of Medicine, Baltimore, MD, USA
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Shan R, Chang L, Li W, Liu W, Rong Z, Chen Y, Zeng L. Effects of hyperoxia on cytoplasmic thioredoxin system in alveolar type epithelial cells of premature rats. ACTA ACUST UNITED AC 2011; 31:258-263. [PMID: 21505996 DOI: 10.1007/s11596-011-0263-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2010] [Indexed: 11/25/2022]
Abstract
This study investigated the effects of hyperoxia on dynamic changes of thioredoxin-1 (Trx1) and thioredoxin reductase-1 (TrxR1) in alveolar type II epithelial cells (AECII) of premature rats. Pregnant Sprague-Dawley rats were sacrificed on day 19 of gestation. AECII were isolated and purified from the lungs of premature rats. When cultured to 80% confluence, in vitro cells were randomly divided into air group and hyperoxia group. Cells in the hyperoxia group were continuously exposed to 95% O(2)/5% CO(2) and those in the air group to 95% air/5% CO(2). After 12, 24 and 48 h, cells in the two groups were harvested to detect their reactive oxygen species (ROS), apoptosis, TrxR1 activity and the expressions of Trx1 and TrxR1 by corresponding protocols, respectively. The results showed that AEC II exposed to hyperoxia generated excessive ROS and the apoptosis percentage in the hyperoxia group was increased significantly at each time points as compared with that in the air group (P<0.001). Moreover, TrxR1 activity was found to be markedly depressed in the hyperoxia group in comparison to that in the air group (P<0.001). RT-PCR showed the expressions of both Trx1 and TrxR1 mRNA were significantly increased in AECII exposed to hyperoxia for 12 and 24 h (P<0.01), respectively. At 48 h, the level of Trx1 mRNA as well as that of TrxR1 mRNA in the hyperoxia group was reduced and showed no significant difference from that in the air group (P>0.05). Western blotting showed the changes of Trx1 protein expressions in the hyperoxia group paralleled those of Trx1 mRNA expressions revealed by RT-PCR. It was concluded that hyperoxia can up-regulate the protective Trx1/TrxR1 expressed by AECII in a certain period, however, also cause dysfunction of the cytoplasmic thioredoxin system by decreasing TrxR1 activity, which may contribute to the progression of oxidative stress and cell apoptosis and finally result in lung injury.
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Affiliation(s)
- Ruiyan Shan
- Department of Pediatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Liwen Chang
- Department of Pediatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China.
| | - Wenbin Li
- Department of Pediatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Wei Liu
- Department of Pediatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Zhihui Rong
- Department of Pediatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Yan Chen
- Department of Pediatrics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Lingkong Zeng
- Department of Pediatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
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Kawahara S, Konishi H, Morino M, Ohata K, Kiyama H. Pancreatitis-associated protein-I and pancreatitis-associated protein-III expression in a rat model of kainic acid-induced seizure. Neuroscience 2010; 175:273-80. [PMID: 21093549 DOI: 10.1016/j.neuroscience.2010.11.020] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2010] [Revised: 11/11/2010] [Accepted: 11/12/2010] [Indexed: 11/30/2022]
Abstract
The pancreatitis-associated protein (PAP) family (also known as the regenerating gene (Reg) family) is a group of 16 kDa secretory proteins structurally classified as the calcium dependent-type lectin superfamily. Some PAP family members are expressed in neurons following peripheral nerve injury and traumatic brain injury. To determine whether PAP family members are expressed in non-traumatic brain injury, expressions were analyzed following kainic acid (KA)-induced seizure. PAP-I (also known as Reg2 in rat and RegIII-beta in mouse) and pancreatitis associated protein-III (PAP-III; RegIII-gamma in mouse) messenger ribonucleic acid (mRNA) was transiently expressed in some restricted areas, such as the hippocampus and parahippocampal area; expression was observed immediately at a maximal level 1 day after seizure. Expression disappeared within 3 days after seizure. In situ hybridization (ISH) and immunohistochemistry revealed neuronal PAP-I and PAP-III expression in the hippocampal dentate gyrus, perirhinal and entorhinal cortices, and the posterior cortical nucleus of the amygdala. The number of PAP-III mRNA-positive neurons was significantly greater than PAP-I mRNA-positive neurons. The majority of positive neurons co-localized with c-Jun, but not with glutamic acid decarboxylase (GAD). These results may suggest that PAP-I and PAP-III induction in non-GABAergic neurons would protect neurons against damage following seizure.
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Affiliation(s)
- S Kawahara
- Department of Anatomy and Neurobiology, Osaka City University, Graduate School of Medicine, Osaka 545-8585, Japan
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