Effects of 17-E2 on growth and gonad development of overwintering Whitmania pigra

The present study was conducted to explores the effects of short-term addition of 17β-E2 on the growth,gonad development and internal quality of overwintering Whitmania pigra. Before overwintering,0. 0,1. 0,10. 0,25. 0,50. 0,100. 0 μg·L~(-1) of 17β-E2 were added to the aquaculture water for 6 weeks and then hibernated for 60 days. The changes of growth performance,gonad index,morphological structure of spermary( ovary),endogenous steroid hormones level and internal quality were measured. The results showed that the body weight,weight gain rate,specific growth rate,female gonad index,oocyte development and endogenous estrogen level of the leech increased first and then decreased with the increase of the concentration of exogenous 17β-E2,which were higher than those of the control group. The body weight,weight gain rate and specific growth rate of the leech at the concentration of 25 μg·L~(-1)17β-E2 were significantly higher than those of the other groups( P<0. 05),oocyte development and endogenous estrogen levels were significantly higher than those of other groups at the concentration of 50 μg·L~(-1)( P<0. 05). When the concentration of exogenous 17β-E2 was higher than 50 μg·L~(-1),the levels of male gonad index,spermatocyte development,endogenous androgen and progesterone were significantly inhibited( P< 0. 05). There was no significant difference in endogenous corticosteroid levels among the groups. In conclusion,short-term addition of exogenous 17β-E2 of 10-25 μg·L~(-1) could promote the growth of overwintering leeches,oocyte development and antithrombin activity without inhibiting the development of male gonads.

Resumen tomado de PubMed (NCBI) para el registro citado, en el idioma original. La versión de referencia es la de la publicación original.

El resumen se deja sin traducir para conservar la redacción original de los autores.

Adding 17β-E2 to aquaculture water before overwintering, leech growth and female gonad development rose then fell with dose; 25 μg·L⁻¹ maximized growth, concentrations above 50 μg·L⁻¹ inhibited male gonad development, and 10-25 μg·L⁻¹ promoted growth without suppressing males.

Explore cómo esta investigación se conecta con la práctica clínica

Más estudios revisados por pares en la categoría «Genómica y proteómica».

• Leech Salivary Proteome and Transcriptome: 434 Deduced Protein Sequences — Liu Z, Tong X, Su Y, et al. (2019)
• Medicinal Leech Draft Genome — Anticoagulant Gene Survey — Kvist S, Manzano-Marín A, de Carle D, Trontelj P, Siddall ME (2020)
• La terapia con sanguijuelas (Hirudo medicinalis) atenúa las lesiones testiculares inducidas por isquemia/reperfusión testicular en un modelo animal — Davoodi F et al. (2021)
• Nueva proteína anticoagulante de la sanguijuela medicinal — Manuvera V et al. (2024)
• AIF-1 y RNASET2 desempeñan papeles complementarios en la respuesta inmunitaria innata de la sanguijuela medicinal — Baranzini N et al. (2019)
• Los péptidos antimicrobianos de la sanguijuela medicinal carentes de toxicidad representan una estrategia alternativa prometedora para combatir patógenos resistentes a antibióticos — Grafskaia E et al. (2019)
• Perspectivas estructurales sobre la actividad trombolítica de la destabilasa de la sanguijuela medicinal — Marin E et al. (2023)
• El genoma de la sanguijuela medicinal (Whitmania pigra) y un estudio genómico comparativo para la exploración de ingredientes bioactivos — Tong L et al. (2022)
• El SNC de la sanguijuela medicinal como modelo para estudios de exosomas en la comunicación cruzada entre microglía y neuronas — Raffo-Romero A et al. (2018)
• Transcriptomic profiling and the first spatial expression analysis of candidate genes in the salivary gland of the East Asian medicinal leech, Hirudo nipponia — Kim J et al. (2024)

Ver toda la investigación analizada por la ASH →