In vitro effect of malathion and endosulfan on the LH-induced oocyte maturation in the common CARP, Cyprinus carpio (L.)

Haider, S. A.; Inbaraj, R. Moses

doi:10.1007/bf00250945

Cited by 14 publications

(3 citation statements)

References 14 publications

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“…Effects of co‐incubation might be influenced by the affinities of either chemical (malathion, hCG) for the mPR; however, the literature is limited regarding binding kinetics of the mPR. In a study investigating maturation of oocytes from carp ( Cyprinus carpio L. ), 50 μg/L malathion, a concentration similar to one used in the present study, significantly impaired luteinizing hormone‐induced GVBD in maturationally competent oocytes after exposure for 36 h (Haider et al, 1988). Regardless, there was no observed difference in the magnitude of control oocytes that were able to mature in the method we used (Stewart, 2015) compared with the method used by Maskey et al (2019).…”

Section: Discussionmentioning

confidence: 62%

“…In zebrafish, in vitro exposure of stage IV oocytes to malathion, di-(-2-ethylhexyl) phthalate, and genistein impairs oocyte maturation, whereas in vitro exposure to diethylstilbestrol, melatonin, and iprodione can induce oocyte maturation (Carnevali et al, 2010(Carnevali et al, , 2011Maskey et al, 2019;Tokumoto et al, 2005Tokumoto et al, , 2007. Exposures of maturationally competent oocytes in vitro to malathion, an organophosphate insecticide, causes a dosedependent decrease in the success of oocyte maturation in common carp (Cyprinus carpio) and zebrafish (Haider et al, 1988;Maskey et al, 2019). Alteration to the success of oocyte maturation by anthropogenic chemicals is proposed to be mediated by dysregulation of or interaction with the mPR (Das & Thomas, 1999;Maskey et al, 2019;Nagahama & Yamashita, 2008;Tokumoto et al, 2007Tokumoto et al, , 2011Kjeldsen et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

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Inhibition of Oocyte Maturation by Malathion and Structurally Related Chemicals in Zebrafish (Danio rerio) After In Vitro and In Vivo Exposure

Miller

Essen

Brinkmann

et al. 2022

Enviro Toxic and Chemistry

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Oogenesis is the process by which a primary oocyte develops into a fertilizable oocyte, making it critical to successful reproduction in fish. In zebrafish (Danio rerio), there are five stages of oogenesis. During the final step (oocyte maturation), the maturation-inducing hormone 17α,20β-dihydroxy-4-pregnen-3-one (MIH) activates the membrane progestin receptor, inducing germinal vesicle breakdown. Using in vitro assays, it has been shown that anthropogenic stressors can dysregulate MIH-induced oocyte maturation. However, it is unknown whether the in vitro assay is predictive of reproductive performance after in vivo exposure. We demonstrate that a known inhibitor of oocyte maturation, malathion, and a structurally related chemical, dimethoate, inhibit oocyte maturation. However, malaoxon and omethoate, which are metabolites of malathion and dimethoate, did not inhibit oocyte maturation. Malathion and dimethoate inhibited maturation to a similar magnitude when oocytes were exposed for 4 h in vitro or 10 days in vivo, suggesting that the in vitro zebrafish oocyte maturation assay might be predictive of alterations to reproductive performance. However, when adult zebrafish were exposed to malathion for 21 days, there was no alteration in fecundity or fertility in comparison with control fish. Our study supports the oocyte maturation assay as being predictive of the success of in vitro oocyte maturation after in vivo exposure, but it remains unclear whether inhibition of MIH-induced oocyte maturation in vitro correlates to decreases in reproductive performance.

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Section: Discussionmentioning

confidence: 62%

Section: Introductionmentioning

confidence: 99%

Inhibition of Oocyte Maturation by Malathion and Structurally Related Chemicals in Zebrafish (Danio rerio) After In Vitro and In Vivo Exposure

Miller

Essen

Brinkmann

et al. 2022

Enviro Toxic and Chemistry

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“…Exposure to aluminum caused an increase in the plasma concentrations of the thyroid hormones triiodothyronine (T3) and thyroxine (T4), whereas exposure to cadmium and lead caused increased in vitro concentrations of 17,-estradiol (E2) and testosterone (2)(3)(4). Some (5,6). Other pesticides, for example, o,p'-DDT and o,p'-DDE, were shown to act as estrogen mimics, inducing Vtg production (7,8).…”

mentioning

confidence: 99%

A Comparison of the Reproductive Physiology of Largemouth Bass, Micropterus salmoides, Collected from the Escambia and Blackwater Rivers in Florida

Orlando¹,

Denslow²,

Folmar³

et al. 1999

Environmental Health Perspectives

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Largemouth bass (LMB), Miropten salmoides, were taken from the Escambia River (contaminated site) and the Blackwater River (reference site) near Pensacola, Florida. The Escambia River collection occurred downstreain of the effluent from two identified point sources of pollution. These point sources included a coal-fired electric power plant and a chemical company. Conversely, the Blackwater Rivees headwaters and most of its length flow within a state park Although there is some development on the lower part ofthe Blackwater River, fsh were collected in the more pristine upper regions. Fish were captured by elecrohoclcing and were mainia'ined in aerated coolers. Physical measurements were obtained, blood was taken, and liver and gonads were removed. 1MB plasma w s d for the concentration of 17-estradiol (E) and testosterone using validated radioimnay. The presence of tellonin wasdeermined by gel elecphoresis (SDS-PAIE)

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Pesticide Toxicity to Fishes: Exposure, Toxicity and Risk Assessment Methodologies

Stanley

Preetha

2016

Pesticide Toxicity to Non-Target Organisms

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In vitro effect of malathion and endosulfan on the LH-induced oocyte maturation in the common CARP, Cyprinus carpio (L.)

Cited by 14 publications

References 14 publications

Inhibition of Oocyte Maturation by Malathion and Structurally Related Chemicals in Zebrafish (Danio rerio) After In Vitro and In Vivo Exposure

Inhibition of Oocyte Maturation by Malathion and Structurally Related Chemicals in Zebrafish (Danio rerio) After In Vitro and In Vivo Exposure

A Comparison of the Reproductive Physiology of Largemouth Bass, Micropterus salmoides, Collected from the Escambia and Blackwater Rivers in Florida

Pesticide Toxicity to Fishes: Exposure, Toxicity and Risk Assessment Methodologies

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