Mate calling behavior of male South African clawed frogs (Xenopus laevis) is suppressed by the antiandrogenic endocrine disrupting compound flutamide

2010 ◽  
Vol 168 (2) ◽  
pp. 269-274 ◽  
Author(s):  
Thomas Behrends ◽  
Ralph Urbatzka ◽  
Sven Krackow ◽  
Andreas Elepfandt ◽  
Werner Kloas
Keyword(s):  
Xenopus Laevis ◽  
South African ◽  
Calling Behavior ◽  
Endocrine Disrupting Compound ◽  
Endocrine Disrupting

COMPARATIVE EFFECTS OF THE OESTROGENS AND OTHER STEROID HORMONES ON SERUM LIPIDS AND PROTEINS IN XENOPUS LAEVIS DAUDIN

1969 ◽  
Vol 43 (1) ◽  
pp. 47-53 ◽  
Author(s):  
M. R. REDSHAW ◽  
B. K. FOLLETT ◽  
T. J. NICHOLLS
Keyword(s):  
Plasma Concentration ◽  
Xenopus Laevis ◽  
Steroid Hormones ◽  
South African ◽  
Calcium Binding ◽  
Serum Lipids ◽  
Response Curves ◽  
Yolk Formation ◽  
Log Linear ◽  
Relative Potencies

SUMMARY A comparison has been made between the effects of oestradiol-17β, oestrone, oestriol, progesterone, testosterone and cortisone on the plasma concentration of proteins and lipids in the South African clawed toad, Xenopus laevis Daudin. No major changes in the parameters studied were found with the non-oestrogenic steroids; only the three oestrogens induced the appearance in the plasma of a calcium-binding phospholipoprotein and esterified lipids associated with yolk formation. These results support the hypothesis that the oestrogens alone cause the vitellogenic response in oviparous vertebrates. Dose—response curves for oestradiol-17β, oestrone and oestriol were established for the effects on plasma protein, calcium, protein-bound phosphorus, phospholipid, lipid and cholesterol. The curves obtained were log.-linear over the range of doses employed (oestradiol-17β, 1–50 μg./day; oestrone, 4–100 μg./day; oestriol, 20–500 μg./day) with the exception of the cholesterol response to oestradiol. The relative potencies of the three oestrogens were compared for each of the plasma components measured. Oestradiol-17β was the most potent, being 3·9 times more active than oestrone and 13·7 times more active than oestriol.

High efficiency removal and recovery of an endocrine disrupting compound–bisphenol AF from wastewaters

2013 ◽  
Vol 116 ◽  
pp. 145-153 ◽  
Author(s):  
Lei Zhang ◽  
Junna Lv ◽  
Tianci Xu ◽  
Lijun Yang ◽  
Xiaoqing Jiang ◽  
...  
Keyword(s):  
High Efficiency ◽  
Endocrine Disrupting Compound ◽  
Endocrine Disrupting ◽  
Bisphenol Af ◽  
Removal And Recovery

TISSUE DISTRIBUTION OF IMMUNOREACTIVE SOMATOSTATIN IN THE SOUTH AFRICAN CLAWED TOAD (XENOPUS LAEVIS)

1979 ◽  
Vol 80 (3) ◽  
pp. 407-408 ◽  
Author(s):  
B. SHAPIRO ◽  
M. SHEPPARD ◽  
S. KRONHEIM ◽  
B. L. PIMSTONE
Keyword(s):  
Xenopus Laevis ◽  
Tissue Distribution ◽  
South African ◽  
Rich Source ◽  
Gut Peptides ◽  
The South ◽  
The Brain

Immunoreactive somatostatin is present in the brain, gut and pancreas of the South African clawed toad, but is absent from the skin, a rich source of many other brain–gut peptides.

Nanocomposite Membrane-Based Photocatalytic Reactor for Degradation of Endocrine-Disrupting Compound in Water

2018 ◽  
pp. 403-439
Author(s):  
Hazlini Dzinun ◽  
Mohd Hafiz Dzarfan Othman ◽  
A. F. Ismail ◽  
Mohd Hafiz Puteh ◽  
Mukhlis A. Rahman ◽  
...  
Keyword(s):  
Nanocomposite Membrane ◽  
Photocatalytic Reactor ◽  
Endocrine Disrupting Compound ◽  
Endocrine Disrupting
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