Publications by authors named "Nathalie Prevot-D'Alvise"
After a Telomere Lengthening in juvenile stage, a progressive telomere shortening occurs with age despite higher telomerase level. Telomere Length (TL) may also reflect past physiological state such as a chronic chemical stress. Several studies have revealed a correlation between TL, ageing and/or sex in vertebrates, including teleosts; however, the patterns of telomere dynamics with telomerase mRNA expression, sex, lifespan or chemical stress in teleosts are unclear.
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- 17α-ethinylestradiol (EE2), a component of female contraceptive pills, has been found in Mediterranean coasts impacting seahorse populations, particularly Hippocampus guttulatus.
- Research exposed 2-month-old, undifferentiated seahorses to 21 ng/L of EE2 for 30 days, resulting in a 19% weight reduction and a 27% mortality rate, alongside demasculinization in males.
- The exposure affected hormone levels, decreasing estradiol and testosterone in males while leading to unexpectedly lower vitellogenin in females, highlighting growth and maturation issues linked to this environmental contaminant.
Glyphosate-based herbicides are the most frequently used herbicides in the world. We evaluated the effect of Roundup 360 SL on the expression of interleukin-1β (il-1β), interleukin-10 (il-10) and heme-oxygenase-1 (ho-1) in the gills, intestines and spleen of young European sea bass (Dicentrachus labrax L.), aged 8 mo.
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