Kidney anatomy, histology and histometric traits associated to renosomatic index in Gymnotus inaequilabiatus (Gymnotiformes: Gymnotidae)
ABSTRACT The Gymnotus inaequilabiatus is a Neotropical fish widely distributed in marginal areas of bays. The aim of this study was to describe the main histological and histopathological traits in the head and exocrine kidney. Here, histometric and structural density techniques were associated with...
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| Format: | Article |
| Language: | English |
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Sociedade Brasileira de Ictiologia
2019-11-01
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| Series: | Neotropical Ichthyology |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252019000500207&tlng=en |
| _version_ | 1818974905330302976 |
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| author | Carlos Eurico Fernandes Sandrieley Fernanda Marcondes Gizela Melina Galindo Lilian Franco-Belussi |
| author_facet | Carlos Eurico Fernandes Sandrieley Fernanda Marcondes Gizela Melina Galindo Lilian Franco-Belussi |
| author_sort | Carlos Eurico Fernandes |
| collection | DOAJ |
| description | ABSTRACT The Gymnotus inaequilabiatus is a Neotropical fish widely distributed in marginal areas of bays. The aim of this study was to describe the main histological and histopathological traits in the head and exocrine kidney. Here, histometric and structural density techniques were associated with renosomatic index (RSI). The kidney was processed for light microscopy. Lipofuscin and hemosiderin content were visually estimated in the melonomacrophages centers (MMCs). All the biometric body variables were correlated with RSI, especially the kidney weight and gross lesions count. The general architecture of head and exocrine kidney was similar to that described for other teleost species. MMCs were prevalent in both portions and correlated with RSI in the head and exocrine kidney. Granulomatous structures were often observed in both portions; however, they were associated only in the exocrine kidney with RSI. Of all the structures hystometrically estimated, only proximal tubular diameter and thickness, and distal tubular thickness were correlated to renosomatic index. The RSI is an useful biometric variable that represent some physiological and morphological characteristics of kidney in G. inaequilabiatus. These findings may be used in future studies to evaluate the effects of environmental stressors on the renal adaptative physiological process. |
| first_indexed | 2024-12-20T15:47:29Z |
| format | Article |
| id | doaj.art-7f3ded82ddb64b3d84f5cd108524b1e9 |
| institution | Directory Open Access Journal |
| issn | 1982-0224 |
| language | English |
| last_indexed | 2024-12-20T15:47:29Z |
| publishDate | 2019-11-01 |
| publisher | Sociedade Brasileira de Ictiologia |
| record_format | Article |
| series | Neotropical Ichthyology |
| spelling | doaj.art-7f3ded82ddb64b3d84f5cd108524b1e92022-12-21T19:34:53ZengSociedade Brasileira de IctiologiaNeotropical Ichthyology1982-02242019-11-0117410.1590/1982-0224-20190107Kidney anatomy, histology and histometric traits associated to renosomatic index in Gymnotus inaequilabiatus (Gymnotiformes: Gymnotidae)Carlos Eurico Fernandeshttps://orcid.org/0000-0001-5425-1866Sandrieley Fernanda Marcondeshttps://orcid.org/0000-0002-3439-0022Gizela Melina Galindohttps://orcid.org/0000-0002-3456-1688Lilian Franco-Belussihttps://orcid.org/0000-0003-1938-8423ABSTRACT The Gymnotus inaequilabiatus is a Neotropical fish widely distributed in marginal areas of bays. The aim of this study was to describe the main histological and histopathological traits in the head and exocrine kidney. Here, histometric and structural density techniques were associated with renosomatic index (RSI). The kidney was processed for light microscopy. Lipofuscin and hemosiderin content were visually estimated in the melonomacrophages centers (MMCs). All the biometric body variables were correlated with RSI, especially the kidney weight and gross lesions count. The general architecture of head and exocrine kidney was similar to that described for other teleost species. MMCs were prevalent in both portions and correlated with RSI in the head and exocrine kidney. Granulomatous structures were often observed in both portions; however, they were associated only in the exocrine kidney with RSI. Of all the structures hystometrically estimated, only proximal tubular diameter and thickness, and distal tubular thickness were correlated to renosomatic index. The RSI is an useful biometric variable that represent some physiological and morphological characteristics of kidney in G. inaequilabiatus. These findings may be used in future studies to evaluate the effects of environmental stressors on the renal adaptative physiological process.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252019000500207&tlng=enFishPathologyRenal morphologyStereologyTeleost |
| spellingShingle | Carlos Eurico Fernandes Sandrieley Fernanda Marcondes Gizela Melina Galindo Lilian Franco-Belussi Kidney anatomy, histology and histometric traits associated to renosomatic index in Gymnotus inaequilabiatus (Gymnotiformes: Gymnotidae) Neotropical Ichthyology Fish Pathology Renal morphology Stereology Teleost |
| title | Kidney anatomy, histology and histometric traits associated to renosomatic index in Gymnotus inaequilabiatus (Gymnotiformes: Gymnotidae) |
| title_full | Kidney anatomy, histology and histometric traits associated to renosomatic index in Gymnotus inaequilabiatus (Gymnotiformes: Gymnotidae) |
| title_fullStr | Kidney anatomy, histology and histometric traits associated to renosomatic index in Gymnotus inaequilabiatus (Gymnotiformes: Gymnotidae) |
| title_full_unstemmed | Kidney anatomy, histology and histometric traits associated to renosomatic index in Gymnotus inaequilabiatus (Gymnotiformes: Gymnotidae) |
| title_short | Kidney anatomy, histology and histometric traits associated to renosomatic index in Gymnotus inaequilabiatus (Gymnotiformes: Gymnotidae) |
| title_sort | kidney anatomy histology and histometric traits associated to renosomatic index in gymnotus inaequilabiatus gymnotiformes gymnotidae |
| topic | Fish Pathology Renal morphology Stereology Teleost |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252019000500207&tlng=en |
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