Estrogenic effects of monocrotophos evaluated by vitellogenin mRNA and protein induction in male goldfish (Carassius auratus)

2009 ◽  
Vol 150 (2) ◽  
pp. 231-236 ◽  
Author(s):  
Hua Tian ◽  
Shaoguo Ru ◽  
Zhenyu Wang ◽  
Wenting Cai ◽  
Wei Wang
Keyword(s):  
Carassius Auratus ◽  
Goldfish Carassius Auratus ◽  
Estrogenic Effects ◽  
Vitellogenin Mrna

Environmental estrogenic effects and gonadal development in wild goldfish (Carassius auratus)

2008 ◽  
Vol 150 (1-4) ◽  
pp. 397-404 ◽  
Author(s):  
Chun-Ri Li ◽  
Sang-Hoon Lee ◽  
So-Sun Kim ◽  
Andre Kim ◽  
Keun Woo Lee ◽  
...  
Keyword(s):  
Carassius Auratus ◽  
Gonadal Development ◽  
Goldfish Carassius Auratus ◽  
Estrogenic Effects

Estrogenic effects of monocrotophos standard on male goldfish, Carassius auratus: induction of vitellogenin synthesis and alteration of testicular ultrastructure and function

2014 ◽  
Vol 64 (4) ◽  
pp. 311-331
Author(s):  
Zhenyu Wang ◽  
Meng Sun ◽  
Hua Tian ◽  
Su Gao ◽  
Wei Wang ◽  
...  
Keyword(s):  
Carassius Auratus ◽  
Quantitative Methods ◽  
Gonadosomatic Index ◽  
Qualitative And Quantitative Methods ◽  
Goldfish Carassius Auratus ◽  
Estrogenic Effects ◽  
Endogenous Estrogen ◽  
Vitellogenin Synthesis ◽  
Ultrastructure And Function ◽  
And Function

Monocrotophos has been shown to exert estrogenic effects on teleosts. However, it has not been determined whether monocrotophos itself is the component that is responsible for exerting these estrogenic activities. Therefore, this study was carried out to investigate the estrogenic effects of monocrotophos standard in male goldfish (Carassius auratus), after a 21-day semi-static toxicity test. The induction of vitellogenin synthesis in males exposed to monocrotophos was confirmed with qualitative and quantitative methods. The observed increase in endogenous estrogen levels in males exposed to monocrotophos might explain the induction of vitellogenin. Moreover, we observed a decreased gonadosomatic index, ultrastructure damage of sperm and Sertoli cells, and several alterative testicular enzyme activities in males exposed to monocrotophos, which possibly affect spermatogenesis and male fertility. Our study showed the potential estrogenic effects of monocrotophos standard may act via the induction of vitellogenin synthesis and alteration of testicular ultrastructure and function in male goldfish.

scholarly journals Development of Plasma Vitellogenin Assay for Estrogenic Effects of Endocrine-Disrupting Chemicals Using Ovariectomized Goldfish (Carassius auratus)

2004 ◽  
Vol 50 (2) ◽  
pp. 169-173 ◽  
Author(s):  
Hiroshi Ishibashi ◽  
Makito Kobayashi ◽  
Yuki Tomiyasu ◽  
Maki Miyahara ◽  
Katsuyasu Tachibana ◽  
...  
Keyword(s):  
Carassius Auratus ◽  
Endocrine Disrupting Chemicals ◽  
Goldfish Carassius Auratus ◽  
Estrogenic Effects ◽  
Endocrine Disrupting

SEM of Hepatocytes and Biliary Passages in Goldfish Liver

1977 ◽  
Vol 35 ◽  
pp. 556-557
Author(s):  
Waykin Nopanitaya ◽  
Joe W. Grisham ◽  
Johnny L. Carson
Keyword(s):  
Carassius Auratus ◽  
Cell Layer ◽  
Three Dimensional ◽  
Cell Types ◽  
Biliary System ◽  
Fish Food ◽  
Commercial Fish ◽  
Goldfish Carassius Auratus ◽  
Commercial Fish Food

An interesting feature of the goldfish liver is the morphology of the hepatic plate, which is always formed by a two-cell layer of hepatocytes. Hepatic plates of the goldfish liver contain an infrequently seen second type of cell, in the centers of plates between two hepatocytes. A TEH study by Yamamoto (1) demonstrated ultrastructural differences between hepatocytes and centrally located cells in hepatic plates; the latter were classified as ductule cells of the biliary system. None of the previous studies clearly showed a three-dimensional organization of the two cell types described. In the present investigation we utilize SEM to elucidate the arrangement of hepatocytes and bile ductular cells in intralobular plates of goldfish liver.Livers from young goldfish (Carassius auratus), about 6-10 cm, fed commercial fish food were used for this study. Hepatic samples were fixed in 4% buffered paraformaldehyde, cut into pieces, fractured, osmicated, CPD, mounted Au-Pd coated, and viewed by SEM at 17-20 kV. Our observations were confined to the ultrastructure of biliary passages within intralobular plates, ductule cells, and hepatocytes.

Induction of Gynogenesis and Androgenesis in Goldfish Carassius auratus (var. oranda)

2001 ◽  
Vol 36 (3-4) ◽  
pp. 195-198 ◽  
Author(s):  
I Paschos ◽  
L Natsis ◽  
C Nathanailides ◽  
I Kagalou ◽  
E Kolettas
Keyword(s):  
Carassius Auratus ◽  
Goldfish Carassius Auratus

Toxicity and deleterious impacts of selenium nanoparticles at supranutritional and imbalance levels on male goldfish (Carassius auratus) sperm

2021 ◽  
Vol 66 ◽  
pp. 126758
Author(s):  
Javad Seyedi ◽  
Mohammad Reza Kalbassi ◽  
Milad Esmaeilbeigi ◽  
Mohammad Behzadi Tayemeh ◽  
Jamshid Amiri Moghadam
Keyword(s):  
Carassius Auratus ◽  
Selenium Nanoparticles ◽  
Goldfish Carassius Auratus
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