Effets du soja et des phyto-oestrogènes sur la vitellogénèse et l'endocrinologie stéroïdienne de la truite arc-en-ciel et de l'esturgeon sibérien. Approches in vivo et in vitro

Bennetau-Pelissero, Catherine; Kaushik, SJ; Sumpter, John P.; Fostier, Alexis; Gac, Florence Le; Valotaire, Yves; Davail-Cuisset, Blandine; Menn, F. Le

doi:10.1051/kmae:1998026

Cited by 7 publications

(2 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Further analyses in agnathan species would be valuable due to their evolutionary position in the vertebrate lineage. In gnathostoma, data are unfortunately missing in the primitive ray-finned bony fishes, and to our knowledge, only one preliminary study indicated that testosterone was bound in blood of a chondrostean fish, the Siberian sturgeon (Acipenser baerii, Acipenseriformes) (Bennetau-Pelissero et al, 1998).…”

Section: Circulating Shbgmentioning

confidence: 93%

Diversity and biological significance of sex hormone-binding globulin in fish, an evolutionary perspective

Bobe

Guiguen

Fostier

2010

Molecular and Cellular Endocrinology

View full text Add to dashboard Cite

In fish, two different genes, shbga and shbgb, exist that encode for very different proteins. Shbga is the ortholog of mammalian Shbg and was found in all investigated teleosts. In contrast, Shbgb is highly divergent and appears to be a salmonid-specific protein. Here, we review existing data on fish Shbga and Shbgb that have been obtained in chondrichthyes and osteichtyes. Even though other significant expression sites exist, existing data indicate that Shbga is mainly expressed in liver and subsequently secreted into the blood as a homodimer. In contrast, Shbgb is mainly expressed in the ovary, probably secreted as a monomer, and could contribute to the regulation of local steroid action. Binding studies indicate a specialization of circulating Shbg during evolution towards the preferential binding of estradiol and testosterone in teleosts. In contrast, specific fish steroids such as 11-oxo-androgens and oocyte maturation-inducing steroids that are crucial for reproduction are poorly bound by either form of Shbg.

show abstract

Section: Circulating Shbgmentioning

confidence: 93%

Diversity and biological significance of sex hormone-binding globulin in fish, an evolutionary perspective

Bobe

Guiguen

Fostier

2010

Molecular and Cellular Endocrinology

View full text Add to dashboard Cite

show abstract

“…These kind of studies were performed with fish SBP [86] and with Human SHBG [87,88] and α Feto-Protein [89]. In humans genistein was also shown in vitro to induce SHBG synthesis by the liver [90].…”

Section: In Vitro Effectsmentioning

confidence: 99%

Phytoestrogens, endocrine disrupters from food

Bennetau-Pelissero¹,

Latonnelle²,

Sequeira³

et al. 2000

Analusis

Self Cite

View full text Add to dashboard Cite

Effect of Genistein-Enriched Diets on the Endocrine Process of Gametogenesis and on Reproduction Efficiency of the Rainbow Trout Oncorhynchus mykiss

Bennetau-Pelissero

Bennetau

et al. 2001

General and Comparative Endocrinology

104

View full text Add to dashboard Cite

Three practical diets were formulated to contain 0, 500, or 1000 ppm genistein. The three diets were distributed for 1 year to groups of rainbow trout undergoing their first gametogenesis and until spawning. Growth performance of rainbow trout was not affected by dietary treatments. Plasma cholesterol levels were equivalent between groups. In males, a slight but constant induction of vitellogenin (VTG) synthesis and a decrease in testosterone levels were observed. A slight decrease in plasma levels of betaFSH and betaLH was noticed at the end of spermatogenesis in the male fish fed a diet with 500 ppm (genistein) (from 2.16 +/- 0.39 to 1.47 +/- 0.23 for betaFSH and from 0.44 +/- 0.09 to 0.31 +/- 0.09 for betaLH). There was a significantly reduced 17alpha,20beta(OH)(2)-progesterone (from 10.93 +/- 0.88 in control to 5.46 +/- 0.92 in males and from 251.22 +/- 21.40 to 183.22 +/- 13.48 in females). Testicular development was accelerated in genistein-fed fish, and sperm motility and concentration were decreased in a dose-dependent manner at spawning. In females, a significant increase in plasma VTG occurred only at the beginning and at the end of oogenesis. Testosterone levels were decreased at the beginning of oogenesis. Both betaFSH and betaLH were decreased by genistein (from 6.38 +/- 1.55 to 3.44 +/- 0.82 for betaFSH and from 15.18 +/- 3.00 to 6.93 +/- 0.99 for betaLH in females), whereas spawning was delayed only in females fed the diet with 500 ppm of genistein. Gamete quality was impaired only in this group, as underlined by a lower percentage of ovulating females (from 100 to 79% at the end of the trial), a lower fertilization rate, and a lower viability of fry. These results may be explained by the agonistic/antagonistic effect of genistein on estrogen function related to the tissue ratio between endogenous estrogens/genistein.

show abstract

Effets du soja et des phyto-oestrogènes sur la vitellogénèse et l'endocrinologie stéroïdienne de la truite arc-en-ciel et de l'esturgeon sibérien. Approches in vivo et in vitro

Cited by 7 publications

References 4 publications

Diversity and biological significance of sex hormone-binding globulin in fish, an evolutionary perspective

Diversity and biological significance of sex hormone-binding globulin in fish, an evolutionary perspective

Phytoestrogens, endocrine disrupters from food

Effect of Genistein-Enriched Diets on the Endocrine Process of Gametogenesis and on Reproduction Efficiency of the Rainbow Trout Oncorhynchus mykiss

Contact Info

Product

Resources

About