Results 11 to 20 of about 347 (168)

Imposex in gastropods from Venezuela

open access: yesCiencias Marinas, 2007
The imposex phenomenon is a superimposition of male characters on gastropod females due to exposure to tributyltin (TBT). There have been no previous reports of this phenomenon in the southern Caribbean, which is inhabited by some edible and ...
P Miloslavich   +2 more
doaj   +3 more sources

Imposex in Stramonita haemastoma from coastal sites of Cartagena, Colombia [PDF]

open access: yesBrazilian Journal of Biology, 2017
Imposex is the development of male sexual characteristics caused by the toxic effects of some chemicals that acts as an endocrinal disruptor. Antifouling paints contain these chemicals.
L. Sierra-Marquez   +3 more
doaj   +5 more sources

RXR Expression in Marine Gastropods with Different Sensitivity to Imposex Development. [PDF]

open access: yesSci Rep, 2020
AbstractThe superposition of male sexual characteristics in female marine gastropods (imposex) represents one of the clearest ecological examples of organotin-mediated endocrine disruption. Recent evidences suggest that signaling pathways mediated by members of the nuclear receptor superfamily, RXR and PPARγ, are involved in the development of this ...
Giulianelli S   +3 more
europepmc   +4 more sources

Mapping molluscan endocrinology: a systematic and critical appraisal. [PDF]

open access: yesBiol Rev Camb Philos Soc
ABSTRACT Historically, a vertebrate‐centric paradigm has framed our interpretation of molluscan endocrinology, with considerable research focusing on vertebrate‐type steroid hormones (e.g. oestrogens, testosterone). However, contradictory evidence on the occurrence of vertebrate‐type steroid hormones in molluscan tissues, and a lack of the specific ...
Panagiotidis K   +3 more
europepmc   +2 more sources

Prioritising research on endocrine disruption in the marine environment: a global perspective. [PDF]

open access: yesBiol Rev Camb Philos Soc
ABSTRACT A healthy ocean is a crucial life support system that regulates the global climate, is a source of oxygen and supports major economic activities. A vast and understudied biodiversity from micro‐ to macro‐organisms is integral to ocean health.
Pinto PIS   +23 more
europepmc   +2 more sources

Imposex in pre-pollution times. Is TBT to blame? [PDF]

open access: yesMarine Pollution Bulletin, 2006
Imposex is known to be induced by TBT at a very low ambient concentration, just a few nanogram per litre, and its development seems dose-dependent. However, the causal, exclusive link between TBT and imposex still need to be assessed in all species where imposex has been reported, becoming one of the most controversial issues of marine biology in the ...
Garaventa F, Faimali M, Terlizzi A
openaire   +6 more sources

Thais (Stramonita) rustica (Lamarck, 1822) (Mollusca: Gastropoda: Thaididae), a potential bioindicator of contamination by organotin northeast Brazil

open access: yesBrazilian Journal of Oceanography, 2004
The use of antifouling paints containing the biocide compound tributyltin (TBT) has been shown as an inductor of imposex in neogastropods mollusks. Imposex is characterized by the development of male features in females, mainly the appearance of a no ...
Ítalo Braga de Castro   +3 more
doaj   +1 more source

Imposex induction in Stramonita haemastoma floridana (Conrad, 1837) (Mollusca: Gastropoda: Muricidae) submitted to an organotin-contaminated diet

open access: yesBrazilian Journal of Oceanography, 2006
Marine organisms are affected by organotin compounds due to the cumulative, deleterious effects of these latter. The most evident and well known consequence of organotin contamination is imposex, a hormonal disruption that causes a superimposition of ...
Aline Fernandes Alves de Lima   +2 more
doaj   +1 more source

Imposex in Thais rustica (Mollusca: Neogastropoda) (Lamark, 1822) as an indicator of organotin compounds pollution at Maceio coast (Northeastern Brazil)

open access: yesBrazilian Journal of Oceanography, 2004
The use of OTC (organotin compounds) as biocides in naval antifouling paints causes impacts on non-target organisms. One of these impacts is a syndrome called imposex in gastropod molluscs.
Edmundo Camillo   +3 more
doaj   +1 more source

Imposex in Plicopurpura pansa (Neogastropoda: Thaididae) in Nayarit and Sinaloa, Mexico

open access: yesRevista Mexicana de Biodiversidad, 2015
Imposex is the development of male features in female prosobranch gastropods, caused by organotin compounds. In the Mexican Pacific coast, imposex was observed in Plicopurpura pansa.
Delia Domínguez-Ojeda   +4 more
doaj   +1 more source

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