| Full text | |
| Author(s): |
Franco-Belussi, Lilian
[1]
;
Leite, Gabriela Baroni
[2]
;
Freitas, Juliane Silberschmidt
[1]
;
de Oliveira, Classius
[2]
Total Authors: 4
|
| Affiliation: | [1] Sao Paulo State Univ UNESP, Dept Biol, Grad Program Anim Biol, BR-15054000 Sao Jose Do Rio Preto, SP - Brazil
[2] Sao Paulo State Univ UNESP, Dept Biol, BR-15054000 Sao Jose Do Rio Preto, SP - Brazil
Total Affiliations: 2
|
| Document type: | Journal article |
| Source: | ANIMAL BIOLOGY; v. 64, n. 3, p. 261-275, 2014. |
| Web of Science Citations: | 2 |
| Abstract | |
Amphibians are susceptible to environmental pollutants and these compounds influence the development, morphology, physiology, behavior, and reproduction of these animals. Escherichia coli is common in aquatic habitats of frogs and could also damage their reproductive activity. Thus, our objective was to evaluate the effects of E. coli lipopolysaccharide on the testes of Eupemphix nattereri after 2, 6, 12, and 24 hours. As in other anurans, the testes of E. nattereri are paired structures and spermatogenesis into the locule is cystic, with mast cells in the interstitial region as well as testicular melanocytes. The administration of lipopolysaccharide decreased the absolute locular volume after 12 h while increasing the interstitial volume. In addition, lipopolysaccharide treatment decreased the absolute volume of all cell types in animals analyzed after 12 h. The amount of mast cells in the interstitial region increased after 12 h of inoculation. Acute exposure to lipopolysaccharide clearly alters testicular morphology, decreasing the volume of both locular and germ cells. However, acute treatment did not impair spermatogenesis and after 24 h, the treatment effects were minimized. Thus, this study was the first to demonstrate that lipopolysaccharide is a potential agent for causing damage to the testes of anurans. (AU) | |
| FAPESP's process: | 09/13925-7 - Effects of female sex hormone (17-beta-estradiol) on the anuran testicular morphophysiology: Lithobates catesbeianus (Ranidae) and Rhinella schneideri (Bufonidae) |
| Grantee: | Classius de Oliveira |
| Support Opportunities: | Regular Research Grants |
| FAPESP's process: | 13/02067-5 - Toxic effects of the herbicides Atrazine and Roundup in Eupemphix nattereri (Leiuperidae) and Rhinella schneideri (Bufonidae): morphological changes under different concentrations and abiotic conditions (pH, temperature and photoperiod) |
| Grantee: | Classius de Oliveira |
| Support Opportunities: | Regular Research Grants |
| FAPESP's process: | 11/01840-7 - Antiinflammatory action of alfa-MSH hormone in anurans: a systemic and in vitro study. |
| Grantee: | Lilian Franco Belussi |
| Support Opportunities: | Scholarships in Brazil - Doctorate |