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Emerald BS, Mohsin S, D’Souza C, John A, El-Hasasna H, Ojha S, Raza H, al-Ramadi B, Adeghate E. Diabetes Mellitus Alters the Immuno-Expression of Neuronal Nitric Oxide Synthase in the Rat Pancreas. Int J Mol Sci 2022; 23:ijms23094974. [PMID: 35563364 PMCID: PMC9105024 DOI: 10.3390/ijms23094974] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2022] [Revised: 04/22/2022] [Accepted: 04/24/2022] [Indexed: 02/04/2023] Open
Abstract
Nitric oxide is generated from nitric oxide synthase following hyperglycemia-induced oxidative stress during the course of diabetes mellitus (DM). We examined the temporal immuno-expression of neuronal nitric oxide synthase (nNOS) in the pancreas of diabetic and non-diabetic rats using immunohistochemical, immunofluorescence and western blot techniques 12 h, 24 h, 1 week, 2 weeks, 1, 8 and 15 months after induction of DM. nNOS co-localized with pancreatic beta cells but disappears 12 h after the onset of DM. In contrast, the nNOS content of pancreatic nerves increased significantly (p < 0.001) 24 h after the induction of DM, and decreased sharply thereafter. However, nNOS-positive ganglion cells were observed even 15 months post-diabetes. ROS increased by more than 100% two months after the onset of DM compared to non-diabetic control but was significantly (p < 0.000001) reduced at 9 months after the induction of DM. The pancreatic content of GSH increased significantly (p < 0.02) after 9 months of DM. Although, TBARS content was significantly (p < 0.009; p < 0.002) lower in aged (9 months) non-diabetic and DM rats, TBARS rate was markedly (p < 0.02) higher 9 months after the induction of DM when compared to younger age group. In conclusion, nNOS is present in pancreatic beta cell, but disappears 12 h after the onset of diabetes. In contrast, the tissue level of nNOS of pancreatic nerves increased in the first week of diabetes, followed by a sharp reduction. nNOS may play important roles in the metabolism of pancreatic beta cell.
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Affiliation(s)
- Bright Starling Emerald
- Departments of Anatomy, College of Medicine & Health Sciences, United Arab Emirates University, Al Ain P.O. Box 17666, United Arab Emirates; (B.S.E.); (S.M.); (C.D.)
| | - Sahar Mohsin
- Departments of Anatomy, College of Medicine & Health Sciences, United Arab Emirates University, Al Ain P.O. Box 17666, United Arab Emirates; (B.S.E.); (S.M.); (C.D.)
| | - Crystal D’Souza
- Departments of Anatomy, College of Medicine & Health Sciences, United Arab Emirates University, Al Ain P.O. Box 17666, United Arab Emirates; (B.S.E.); (S.M.); (C.D.)
| | - Annie John
- Departments of Biochemistry, College of Medicine & Health Sciences, United Arab Emirates University, Al Ain P.O. Box 17666, United Arab Emirates; (A.J.); (H.R.)
| | - Hussain El-Hasasna
- Departments of Medical Microbiology and Immunology, College of Medicine & Health Sciences, United Arab Emirates University, Al Ain P.O. Box 17666, United Arab Emirates; (H.E.-H.); (B.a.-R.)
| | - Shreesh Ojha
- Departments of Pharmacology, College of Medicine & Health Sciences, United Arab Emirates University, Al Ain P.O. Box 17666, United Arab Emirates;
| | - Haider Raza
- Departments of Biochemistry, College of Medicine & Health Sciences, United Arab Emirates University, Al Ain P.O. Box 17666, United Arab Emirates; (A.J.); (H.R.)
| | - Basel al-Ramadi
- Departments of Medical Microbiology and Immunology, College of Medicine & Health Sciences, United Arab Emirates University, Al Ain P.O. Box 17666, United Arab Emirates; (H.E.-H.); (B.a.-R.)
- Zayed Centre for Health Sciences, United Arab Emirates University, Al Ain P.O. Box 17666, United Arab Emirates
| | - Ernest Adeghate
- Departments of Anatomy, College of Medicine & Health Sciences, United Arab Emirates University, Al Ain P.O. Box 17666, United Arab Emirates; (B.S.E.); (S.M.); (C.D.)
- Zayed Centre for Health Sciences, United Arab Emirates University, Al Ain P.O. Box 17666, United Arab Emirates
- Correspondence:
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Petrucci L, Maranesi M, Verini Supplizi A, Dall’Aglio C, Mandara MT, Quassinti L, Bramucci M, Miano A, Gobbetti A, Catone G, Boiti C, Zerani M. Kisspeptin/GnRH1 system in Leydig cells of horse (Equus caballus): Presence and function. Theriogenology 2020; 152:1-7. [DOI: 10.1016/j.theriogenology.2020.04.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Revised: 04/07/2020] [Accepted: 04/07/2020] [Indexed: 12/25/2022]
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Frungieri MB, Calandra RS, Mayerhofer A, Matzkin ME. Cyclooxygenase and prostaglandins in somatic cell populations of the testis. Reproduction 2015; 149:R169-80. [DOI: 10.1530/rep-14-0392] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Prostaglandins (PGs) are synthesized through the action of the rate-limiting enzyme cyclooxygenase (COX) and further specific enzymes. The development ofCox-deficient mice in the 1990s gave insights into the reproductive roles of PGs. FemaleCox-knockout mice were subfertile or infertile. Interestingly, fertility was not affected in male mice deficient inCox, suggesting that PGs may not be critical for the functioning of the testis. However, this conclusion has recently been challenged by observations of important roles for PGs in both physiological and pathological processes in the testis. The two key somatic cell types in the testis, Leydig and Sertoli cells, express the inducible isoenzyme COX2 and produce PGs. Testicular COX2 expression in these somatic cells is regulated by hormonal input (FSH, prolactin (PRL), and testosterone) as well as by IL1β. PGs modulate steroidogenesis in Leydig cells and glucose uptake in Sertoli cells. Hence, the COX2/PG system in Leydig and Sertoli cells acts as a local modulator of testicular activity, and consequently may regulate spermatogenic efficiency. In addition to its expression in Leydig and Sertoli cells, COX2 has been detected in the seminiferous tubule wall, and in testicular macrophages and mast cells of infertile patients. These observations highlight the possible relevance of PGs in testicular inflammation associated with idiopathic infertility. Collectively, these data indicate that the COX2/PG system plays crucial roles not only in testicular physiology (i.e., development, steroidogenesis, and spermatogenesis), but more importantly in the pathogenesis or maintenance of infertility status in the male gonad. Further studies of these actions could lead to new therapeutic approaches to idiopathic male infertility.Free German abstractA German translation of this abstract is freely available athttp://www.reproduction-online.org/content/149/4/R169/suppl/DC1.Free Spanish abstractA Spanish translation of this abstract is freely available athttp://www.reproduction-online.org/content/149/4/R169/suppl/DC2.
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Parillo F, Maranesi M, Brecchia G, Gobbetti A, Boiti C, Zerani M. In vivo chronic and in vitro acute effects of di(2-ethylhexyl) phthalate on pseudopregnant rabbit corpora lutea: possible involvement of peroxisome proliferator-activated receptor gamma. Biol Reprod 2014; 90:41. [PMID: 24403546 DOI: 10.1095/biolreprod.113.109223] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
The in vivo chronic and in vitro acute effects of di(2-ethylhexyl) phthalate (DEHP) on the reproductive function of peroxisome proliferator-activated receptor gamma (PPARG) were studied in rabbit corpora lutea (CL) at early stage (Day 4), midstage (Day 9), and late stage (Day 13) of pseudopregnancy. The rabbits were in vivo treated with DEHP for 15 days before induction of pseudopregnancy. Immunohistochemistry provided evidence for the presence of PPARG, prostaglandin endoperoxide synthase 1 (PTGS1), PTGS2, prostaglandin E2-9-ketoreductase (PGE2-9-K), and 3beta-hydroxysteroid dehydrogenase (3beta-HSD) in all the luteal cells during pseudopregnancy. DEHP decreased progesterone plasma levels and CL production in all the luteal stages and PPARG protein and gene expressions in early and mid-CL. DEHP in vivo treatment reduced PTGS2 protein expression at the late stage and that of PGE2-9-K at all the stages, whereas PTGS1 and 3beta-HSD were not affected. In in vitro cultured CL, DEHP alone, the PPARG antagonist T0070907 alone, or DEHP plus T0070907 diminished progesterone production and 3beta-HSD activity and increased PGF2alpha and PTGS2 in early and mid-CL, whereas DEHP plus the PPARG agonist 15d-PGJ2 did not affect these hormones and enzymes. All the in vitro treatments did not affect PGE2 secretion as well as PTGS1 and PGE2-9-K enzymatic activities in all the luteal stages. These results provided evidence that DEHP favors functional luteolysis of pseudopregnant rabbit CL, with a mechanism that seems to involve PPARG expression down-regulation, an increase of PTGS2 activity and prostaglandin F2alpha secretion, 3beta-HSD down-regulation, and decrease in progesterone.
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Affiliation(s)
- Francesco Parillo
- Scuola di Scienze mediche veterinarie, Università di Camerino, Matelica, Italy
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Parillo F, Zerani M, Maranesi M, Dall'Aglio C, Galeati G, Brecchia G, Boiti C, González-Mariscal G. Ovarian hormones and fasting differentially regulate pituitary receptors for estrogen and gonadotropin-releasing hormone in rabbit female. Microsc Res Tech 2013; 77:201-10. [DOI: 10.1002/jemt.22328] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2013] [Revised: 12/08/2013] [Accepted: 12/14/2013] [Indexed: 11/08/2022]
Affiliation(s)
- F. Parillo
- Scuola di Bioscienze e Medicina veterinaria; Università di Camerino; 62024 Matelica Italy
| | - M. Zerani
- Scuola di Bioscienze e Medicina veterinaria; Università di Camerino; 62024 Matelica Italy
| | - M. Maranesi
- Dipartimento di Scienze biopatologiche ed Igiene delle produzioni animali e alimentari; Laboratorio di Biotecnologie fisiologiche, Sezione di Fisiologia veterinaria, Università di Perugia; 06126 Perugia Italy
| | - C. Dall'Aglio
- Dipartimento di Scienze biopatologiche ed Igiene delle produzioni animali e alimentari; Laboratorio di Biotecnologie fisiologiche, Sezione di Fisiologia veterinaria, Università di Perugia; 06126 Perugia Italy
| | - G. Galeati
- Dipartimento di Scienze mediche veterinarie; Università di Bologna; 40064 Ozzano Emilia Italy
| | - G. Brecchia
- Dipartimento di Scienze biopatologiche ed Igiene delle produzioni animali e alimentari; Laboratorio di Biotecnologie fisiologiche, Sezione di Fisiologia veterinaria, Università di Perugia; 06126 Perugia Italy
| | - C. Boiti
- Dipartimento di Scienze biopatologiche ed Igiene delle produzioni animali e alimentari; Laboratorio di Biotecnologie fisiologiche, Sezione di Fisiologia veterinaria, Università di Perugia; 06126 Perugia Italy
| | - G. González-Mariscal
- Centro de Investigación en Reproducción Animal CINVESTAV; Universidad Autónoma de Tlaxcala-CINVESTAV; Tlaxcala Mexico
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Parillo F, Dall’Aglio C, Brecchia G, Maranesi M, Polisca A, Boiti C, Zerani M. Aglepristone (RU534) effects on luteal function of pseudopregnant rabbits: Steroid receptors, enzymatic activities, and hormone productions in corpus luteum and uterus. Anim Reprod Sci 2013; 138:118-32. [DOI: 10.1016/j.anireprosci.2013.02.001] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2012] [Revised: 01/31/2013] [Accepted: 02/07/2013] [Indexed: 11/30/2022]
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Zerani M, Maranesi M, Brecchia G, Gobbetti A, Boiti C, Parillo F. Evidence for a luteotropic role of peroxisome proliferator-activated receptor gamma: expression and in vitro effects on enzymatic and hormonal activities in corpora lutea of pseudopregnant rabbits. Biol Reprod 2013; 88:62. [PMID: 23365414 DOI: 10.1095/biolreprod.112.107383] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Abstract
The expression of peroxisome proliferator-activated receptor gamma (PPARgamma) and its role in corpora lutea (CL) function were studied in pseudopregnant rabbits. Corpora lutea were collected at an early stage (Day 4), midstage (Day 9), and late stage (Day 13) of pseudopregnancy. Immunohistochemistry found evidence for the presence of PPARgamma in the perinuclear cytoplasm and nucleus of all the luteal cells; immunoreactivity decreased from the early to the late stage, with immunonegativity of the nuclei of late stage CL. PPARgamma mRNA transcript was expressed in all the luteal stages with the lowest level in the late stage. In CL cultured in vitro, the PPARgamma agonist (15-deoxy delta12,14 prostaglandin J2 [15d-PGJ2], 200 nM) increased and the antagonist (T0070907, 50 nM) decreased progesterone secretion at early and midluteal stages, whereas 15d-PGJ2 reduced and T0070907 increased PGF2alpha at the same stages. Prostaglandin-endoperoxide synthase 2 (PTGS2) activity was reduced by 15d-PGJ2 and increased by T0070907 in CL of early and midluteal stages. Conversely, 15d-PGJ2 increased and T0070907 reduced 3beta-hydroxysteroid dehydrogenase (3beta-HSD) activity in early and midluteal stage CL. PGE2 in vitro secretion as well as PTGS1 and 20alpha-HSD enzymatic activities were not affected by 15d-PGJ2 and T0070907 in any CL types. These results indicate that PPARgamma plays a luteotropic role in pseudopregnant rabbits, through PTGS2 down-regulation and 3beta-HSD up-regulation, with a consequent PGF2alpha decrease and progesterone increase.
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Affiliation(s)
- Massimo Zerani
- Scuola di Scienze mediche veterinarie, Università di Camerino, Matelica, Italy.
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Ito M, Mochida K, Ito K, Onduka T, Fujii K. Induction of apoptosis in testis of the marine teleost mummichog Fundulus heteroclitus after in vivo exposure to the antifouling biocide 4,5-dichloro-2-n-octyl-3(2H)-isothiazolone (Sea-Nine 211). CHEMOSPHERE 2013; 90:1053-1060. [PMID: 23022169 DOI: 10.1016/j.chemosphere.2012.08.052] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2012] [Revised: 08/24/2012] [Accepted: 08/27/2012] [Indexed: 06/01/2023]
Abstract
4,5-dichloro-2-n-octyl-3(2H)-isothiazolone (Sea-Nine 211) has been widely used as an effective antifouling biocide. However, little is known about its reproductive toxicity in fish. Here we investigated testicular toxicity in a marine teleost, the mummichog Fundulus heteroclitus, after exposure to Sea-Nine 211 for 28 d. Although Sea-Nine 211 exposure did not affect germ cell proliferation in testis, terminal deoxynucleotidyl transferase-mediated deoxy-UTP nick-end labeling revealed that the number of apoptotic spermatocytes was increased in the 1.0- and 3.0-μg L(-1) groups, and significant differences emerged between the 1.0-μg L(-1) group and control groups. Immunohistochemistry showed that the numbers of cysts expressing caspases 2, 3, 6, and 8 (apoptosis-associated proteins) were significantly increased in the 1.0-μg L(-1) group, whereas the signal intensity of an anti-apoptotic protein Bcl-xL was reduced in a dose-dependent manner. Moreover, the number of cysts positive for neuronal nitric oxide synthase was twofold higher in the 1.0-μg L(-1) group than in the control groups. These results suggest that long-term exposure to Sea-Nine 211 induces apoptosis in the testicular germ cells of mummichogs via a caspase-dependent pathway and that oxidative stress via nitric oxide synthesized by neuronal nitric oxide synthase is involved in this induction.
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Affiliation(s)
- Mana Ito
- National Research Institute of Fisheries and Environment of Inland Sea, Fisheries Research Agency, Maruishi 2-17-5, Hatsukaichi, Hiroshima 739-0452, Japan
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Parillo F, Catone G, Maranesi M, Gobbetti A, Gasparrini B, Russo M, Boiti C, Zerani M. Immunolocalization, gene expression, and enzymatic activity of cyclooxygenases, prostaglandin e2-9-ketoreductase, and nitric oxide synthases in mediterranean buffalo (bubalus bubalis) corpora lutea during diestrus. Microsc Res Tech 2012; 75:1682-90. [DOI: 10.1002/jemt.22116] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2012] [Accepted: 07/17/2012] [Indexed: 11/06/2022]
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Zerani M, Catone G, Maranesi M, Gobbetti A, Boiti C, Parillo F. Gonadotropin-Releasing Hormone 1 Directly Affects Corpora Lutea Lifespan in Mediterranean Buffalo (Bubalus bubalis) During Diestrus: Presence and In Vitro Effects on Enzymatic and Hormonal Activities1. Biol Reprod 2012; 87:45. [DOI: 10.1095/biolreprod.112.099598] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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