Scholarlink

<p>We investigated the effects of settleable atmospheric particulate matter (SePM, 1&#xa0;g&#xa0;L<sup>−1</sup>, 96&#xa0;h) on metal bioaccumulation and blood biomarkers of the estuarine fish <i>Centropomus parallelus</i>. After exposure, V, Cr, Ni, Cu, Mo, Ag, W, and Pb accumulated in erythrocytes, while V, Cr, Fe, Nb, Mo, and Pb were found in plasma. SePM increased erythrocyte nuclear abnormalities (89.9%) and micronuclei frequency (117.6%), while decreasing neutrophils (51.6%). The erythrocyte antioxidant system responded with higher CAT and SOD activity (18.4% and 54%) to mitigate biomolecular damage, yet lipoperoxidation (162%) and protein carbonylation (97.1%) persisted in erythrocytes, along with lipoperoxidation (91.3%) in plasma. Our findings demonstrate that SePM exposure alters antioxidant defenses and hematological responses. Observed mutagenic alterations indicate damage with potential ecological implications. Blood biomarkers thus represent sensitive, non-invasive tools for biomonitoring and early detection of stress in aquatic organisms exposed to SePM.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Air–Water Cross-Contamination by Metalliferous Atmospheric Particulates: Bioaccumulation and Hematological Impairments in the Estuarine Fish Centropomus parallelus

  • 期刊论文

  • 发表日期：

    2025年11月30日

查看全文
  • Anieli Cristina Maraschi,
  • Isabelle Cesar Moro,
  • Viviane Gomes dos Santos,
  • Iara Costa Souza,
  • Magdalena Victoria Monferran,
  • Daniel Alberto Wunderlin,
  • Fabiano Bendhack,
  • Marisa Narciso Fernandes,
  • Diana Amaral Monteiro

摘要

We investigated the effects of settleable atmospheric particulate matter (SePM, 1 g L−1, 96 h) on metal bioaccumulation and blood biomarkers of the estuarine fish Centropomus parallelus. After exposure, V, Cr, Ni, Cu, Mo, Ag, W, and Pb accumulated in erythrocytes, while V, Cr, Fe, Nb, Mo, and Pb were found in plasma. SePM increased erythrocyte nuclear abnormalities (89.9%) and micronuclei frequency (117.6%), while decreasing neutrophils (51.6%). The erythrocyte antioxidant system responded with higher CAT and SOD activity (18.4% and 54%) to mitigate biomolecular damage, yet lipoperoxidation (162%) and protein carbonylation (97.1%) persisted in erythrocytes, along with lipoperoxidation (91.3%) in plasma. Our findings demonstrate that SePM exposure alters antioxidant defenses and hematological responses. Observed mutagenic alterations indicate damage with potential ecological implications. Blood biomarkers thus represent sensitive, non-invasive tools for biomonitoring and early detection of stress in aquatic organisms exposed to SePM.