Research Article: Effects of naproxen and titanium dioxide combination on the early life-stages of Zebrafish (Danio rerio): Acute toxicity, morphological defects, and gene expression
محل انتشار: مجله علوم شیلات ایران، دوره: 22، شماره: 6
سال انتشار: 1402
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 41
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شناسه ملی سند علمی:
JR_JIFRO-22-6_002
تاریخ نمایه سازی: 29 بهمن 1402
چکیده مقاله:
Zebrafish (Danio rerio) early-life stages of larvae were used to investigate behavioral, genetical and neurochemical changes promoted by the aquatic toxicity associated with the widely used medicines including naproxen (NPX) and titanium dioxide (TiO۲), individually or in combination. Zebrafish as a biological model system genetically very similar to human. This study was carried out with a control (C) group and six treatments including TiO۲ at ۲ (۲T) and ۴ mg/L (T۴), ۵۰ µg/L (۵۰N) and ۱۰۰ µg/L (۱۰۰N) of NPX, ۲ mg/L TiO۲+۵۰ µg/L NPX (۲T۵۰N) and ۴ mg/L TiO۲ + and ۱۰۰ µg/L NPX, (۴T۱۰۰N). Approximately ۴۸ hours post-fertilization (hpf), the groups exposed to ۴ mg/L TiO۲ individually or in combination of ۱۰۰ µg/L NPX induced large suites of symptoms in zebrafish (D. rerio) early-life stage, including hatching inhibition particularly in ۵۰ and ۱۰۰ µg/L exposed groups (۱۰.۰% and ۱۰.۳%, respectively), increased mortality specially in the group ۴T۱۰۰N (۳۹.۶%), high heart-beat, and few morphological abnormalities. At approximately ۱۶۸ hpf, severing of the yolk sac and pericardium oedema, severe swim bladder inflation, short tail with axial malformation, and small eyes were other significant occurrences in D. rerio exposed particularly to ۱۰۰ µg/L NPX, which can be collectively referred to as pigeon chest deformity. The results of mRNA expression of neurogenesis- and growth-associated genes of the targeted ones presented that gfap mitigated exception for ۲T group compared to the control group. For mbp, fish of all groups showed downward gene expression, except for ۱۰۰N group exhibited a normal expression compared to the control as well as the situation observed for AChE, although the fish showed relatively downward gene expression compared to the control group. The brain showed apoptosis as vacuoles in ۴T and ۵۰N groups. It is concluded that TiO۲ had low acute toxicity to the embryos and larvae of D. rerio compared to NPX and could be used in different industries with low-risk rate, while it was used at low concentration (۲ mg/L or less). although exposure to higher concentrations (۴ mg/L or more) resulted in the increase of susceptibility risk of diseases.
کلیدواژه ها:
نویسندگان
M. Binaei
Department of Pharmacology
N. Hadizadeh Shirazi
Department of biology, Roudehen branch, Islamic Azad University, Roudehen, Iran
F. Faedmaleki
Department of Pharmacology
A.E. Khajehrahimi
Department of Marine Science and Technology
R. Kazempoor
Department of Biology
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