Accumulation Patterns and Health Risk Assessment of Trace Elements in Intermuscular Bone-Free Crucian Carp
文献类型： 外文期刊
作者： Tang, Shizhan 1 ; Li, Na 1 ; Sun, Zhipeng 1 ; Yan, Ting 1 ; Zhang, Tingting 1 ; Xu, Huan 1 ; Chen, Zhongxiang 1 ; Qin, Dongli 1 ; Kuang, Youyi 1 ;
作者机构： 1.Chinese Acad Fishery Sci, Heilongjiang River Fisheries Res Inst, Harbin 150070, Peoples R China
2.Minist Agr & Rural Affairs, Supervis Inspect & Testing Ctr Fishery Environm &, Harbin 150070, Peoples R China
关键词： trace elements; gene-edited fish; health risk assessment; pollution index; crucian carp
期刊名称：TOXICS （ 影响因子：4.1； 五年影响因子：4.6 ）
ISSN：
年卷期： 2025 年 13 卷 7 期
页码：
收录情况： SCI
摘要： This study investigated the accumulation characteristics and associated health risks of 11 trace elements (Al, Rb, Cr, Ni, Mo, Sr, Pb, Ba, Ag, As, and Ga) in four crucian carp varieties: gene-edited intermuscular bone-free crucian carp (Carassius auratus, WUCI) and its sibling wild-type (Carassius auratus, WT), Fangzheng silver crucian carp (Carassius gibelio var Fangzheng, FZYJ), and Songpu silver crucian carp (Carassius gibelio var Songpu, SPYJ). Results showed that Al and Rb were the most abundant elements across all groups. WUCI exhibited distinct accumulation patterns, including significantly higher hepatic Mo concentrations (0.265 +/- 0.032 mg/kg) and muscle/liver Rb levels (muscle: 8.74 +/- 1.21 mg/kg; liver: 12.56 +/- 2.05 mg/kg) compared to other varieties (p < 0.05), which supports the hypothesis of genotype-specific differences in heavy metal accumulation. Correlation analysis revealed that WUCI exhibited similar elemental interactions with WT and SPYJ (e.g., Al-Ni positive correlation, |rs| >= 0.8), while SPYJ displayed distinct patterns with fifteen negative correlations compared to three to five in others varieties, suggesting a potential alteration in elemental homeostasis. Pollution index (Pi) assessments indicated mild contamination for Pb in SPYJ liver (Pi = 0.265) and Cr/As in WUCI muscle (Pi = 0.247/0.218). Despite these values, all hazard indices remained below the established safety thresholds (THQ < 0.1, HI < 0.25, TCR < 10-6), reinforcing the overall safety of the tested fish. Notably, muscle As levels (0.86 +/- 0.15 mg/kg) exceeded hepatic concentrations (0.52 +/- 0.09 mg/kg), potentially due to differential detoxification mechanisms. These findings demonstrate the food safety of all tested varieties, while highlighting genotype-specific metabolic adaptations, providing critical data for evaluating gene edited aquatic products.
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