The use of exogenous carbon monoxide releasing molecules（CORMs）provides promise for clinical application;however,the hazard potential of CORMs in vivo remains poorly understood.The developmental toxicity of CORM-3 w...The use of exogenous carbon monoxide releasing molecules（CORMs）provides promise for clinical application;however,the hazard potential of CORMs in vivo remains poorly understood.The developmental toxicity of CORM-3 was investigated by exposure to concentrations ranging from 6.25 to400μmol/L during 4-144 h post fertilization.Toxicity endpoints of mortality,spontaneous movement,heart rate,hatching rate,malformation,body length,and larval behavior were measured.展开更多
Cadmium (Cd),a ubiquitous environmental hazardous heavy metal,poses a significant threat to the health of aquatic organisms,including teleosts.Although the toxic profile of Cd is well recognized,little is known regard...Cadmium (Cd),a ubiquitous environmental hazardous heavy metal,poses a significant threat to the health of aquatic organisms,including teleosts.Although the toxic profile of Cd is well recognized,little is known regarding the overall view of toxic responses to varying aquatic environmental parameters (e.g.,water hardness) at an individual level.Herein,differences in water hardness were partially mimicked by adjusting Ca^(2+)levels in E3 medium.As an in vivo model,zebrafish embryos were exposed to variable Ca^(2+)levels (NV,normal Ca^(2+);LV,low Ca^(2+);HV,high Ca^(2+)) alone or combined with 30.7μg/L Cd^(2+)(NC,LC,and HC,respectively) until 144 hr post-fertilization.The genome-wide transcriptome revealed differentially expressed genes between groups.Functional enrichment analysis found that biological processes related to metabolism,particularly lipid metabolism,were significantly disrupted in NC and LC treatments,while a remission was observed in the HC group.Biochemical assays confirmed that the decrease in Ca^(2+)enhanced synthesis,inhibited mobilization and increased the storage of lipids in Cd^(2+)treatments.This study suggests that the toxic effect of Cd on biological pathways will be influenced by Ca^(2+),which will improve the toxicological understanding and facilitate accurate assessment of Cd.展开更多
基金supported by National Basic Research Program of China(2010CB834202)the National Natural Science Foundation of China(11305226,11175222)+1 种基金the Scientific Technology Research Projects of Lanzhou City(2015-3-75)the Western Talent Program of Chinese Academy of Sciences(Y460030XB0)
文摘The use of exogenous carbon monoxide releasing molecules（CORMs）provides promise for clinical application;however,the hazard potential of CORMs in vivo remains poorly understood.The developmental toxicity of CORM-3 was investigated by exposure to concentrations ranging from 6.25 to400μmol/L during 4-144 h post fertilization.Toxicity endpoints of mortality,spontaneous movement,heart rate,hatching rate,malformation,body length,and larval behavior were measured.
基金supported by the Strategic Priority Research Program of the Chinese Academy of Sciences (No. XDA23040401)the National Natural Science Foundation of China (No. 21806091)the Natural Science Foundation of Hubei Province (No. 2020CFB154)。
文摘Cadmium (Cd),a ubiquitous environmental hazardous heavy metal,poses a significant threat to the health of aquatic organisms,including teleosts.Although the toxic profile of Cd is well recognized,little is known regarding the overall view of toxic responses to varying aquatic environmental parameters (e.g.,water hardness) at an individual level.Herein,differences in water hardness were partially mimicked by adjusting Ca^(2+)levels in E3 medium.As an in vivo model,zebrafish embryos were exposed to variable Ca^(2+)levels (NV,normal Ca^(2+);LV,low Ca^(2+);HV,high Ca^(2+)) alone or combined with 30.7μg/L Cd^(2+)(NC,LC,and HC,respectively) until 144 hr post-fertilization.The genome-wide transcriptome revealed differentially expressed genes between groups.Functional enrichment analysis found that biological processes related to metabolism,particularly lipid metabolism,were significantly disrupted in NC and LC treatments,while a remission was observed in the HC group.Biochemical assays confirmed that the decrease in Ca^(2+)enhanced synthesis,inhibited mobilization and increased the storage of lipids in Cd^(2+)treatments.This study suggests that the toxic effect of Cd on biological pathways will be influenced by Ca^(2+),which will improve the toxicological understanding and facilitate accurate assessment of Cd.
