Assessing the toxicity of sediments using the medaka embryo-larval assay and 2 other bioassays

2016 ◽  
Vol 35 (9) ◽  
pp. 2270-2280 ◽  
Author(s):  
Badreddine Barhoumi ◽  
Christelle Clérandeau ◽  
Laure Landi ◽  
Anaïk Pichon ◽  
Florane Le Bihanic ◽  
...  
Keyword(s):  
Medaka Embryo

Modified Japanese Medaka Embryo-Larval Bioassay for Rapid Determination of Developmental Abnormalities

2006 ◽  
Vol 51 (4) ◽  
pp. 600-607 ◽  
Author(s):  
Andrea Farwell ◽  
Vincent Nero ◽  
Melanie Croft ◽  
Prabjot Bal ◽  
D. George Dixon
Keyword(s):  
Rapid Determination ◽  
Japanese Medaka ◽  
Developmental Abnormalities ◽  
Larval Bioassay ◽  
Medaka Embryo

Toxic Effects of Crude Oil Water Accommodated Fractions on the Cardiac Function of Marine Medaka (Oryzias melastigma) Embryo

2014 ◽  
Vol 644-650 ◽  
pp. 5220-5223
Author(s):  
Zhen Dong Zhang ◽  
Qi Lun Yan ◽  
Rui Rui Wang ◽  
Dao Yan Xu
Keyword(s):  
Cardiac Function ◽  
Crude Oil ◽  
Oil Pollution ◽  
Cardiac Contractility ◽  
Model Organism ◽  
Toxic Effects ◽  
Marine Medaka ◽  
Study Results ◽  
Water Accommodated Fractions ◽  
Medaka Embryo

The marine medaka Oryziasmelastigma was used as model organism to detect and evaluate the cardiac function alterations of medaka embryos due to oil exposure induced ecotoxicological effect in the present study. Results showed that the developing medaka heart was a sensitive target organ for the toxic effects of crude oil. Cardiac function of medaka embryos was clearly affected by exposure to WAF of crude oil after 24 hours exposure. Significant differences in cardiac structure and function of medaka embryo were found between exposed and control groups. The chemicals in crude oil slowed down the embryos heart rates, reduced cardiac contractility capability and causes irregular heartbeats. At higher exposure concentrations (7.2 mg/L), swelled and enlarged heart morphology, lower blood circulation and accumulation of blood around the heart area was found. These findings indicate that cardiac function of marine medaka embryo may be used as a toxicity model and biomarker for oil pollution.

scholarly journals DNA methylation dynamics during epigenetic reprogramming of medaka embryo

Epigenetics ◽  
2019 ◽  
Vol 14 (6) ◽  
pp. 611-622 ◽  
Author(s):  
Xuegeng Wang ◽  
Ramji Kumar Bhandari
Keyword(s):  
Dna Methylation ◽  
Epigenetic Reprogramming ◽  
Medaka Embryo
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