PUBLICATION

Toxicology evaluation of overdose hydroxychloroquine on zebrafish (Danio rerio) embryos

Authors
Luo, M., Xie, D., Lin, Z., Sun, H., Liu, Y.
ID
ZDB-PUB-221031-1
Date
2022
Source
Scientific Reports   12: 18259 (Journal)
Registered Authors
Sun, Huaqin
Keywords
none
MeSH Terms
  • Animals
  • Embryo, Nonmammalian*
  • Heart
  • Humans
  • Hydroxychloroquine/toxicity
  • Zebrafish*
PubMed
36309536 Full text @ Sci. Rep.
Abstract
Potential risks of treatment with hydroxychloroquine (HCQ) include QT interval prolongation, hypoglycemia, a wide range of neuropsychiatric manifestations, hematotoxicity, and potential genetic defects. HCQ is extremely toxic when used in overdose and can lead to tachycardia, hypotension, known central nervous system, transmission defects, hypokalemia and other manifestations in individuals. The mechanism of excessive HCQ leading to these manifestations is still unclear. In this paper, overdose HCQ at different concentrations was used to treat zebrafish embryos, and the phenomena like human beings were obtained, such as increased heart rate and nervous system inhibition. With the increase of concentration to 100 μM, embryo mortality and malformation rate increased and hatching rate decreased, in situ hybridization showed abnormal differentiation of embryo germ layers and formation of vital organs. We selected embryos treated with 50 μM HCQ, in which concentration the mortality rate, hatching rate and malformation rate of the embryos were like those of the control group, for transcriptome analysis. Although the above indexes did not change significantly, the molecular changes related to the development of the heart, eye, nerve and other important organs were significant. This study provides useful information for further research on the toxicity mechanism of HCQ overdose, and provides some insight that can guide future studies in humans.
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Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Antibodies
Orthology
Engineered Foreign Genes
Mapping