Arsenic Distribution in a Tilapia (Oreochromis mossambicus) Water-Sediment Aquacultural Ecosystem in Blackfoot Disease Hyperendemic Areas

Wang, Sheng Wei; Lin, Kao-Hung; Hsueh, Yu Mei; Liu, Chen‐Wuing

doi:10.1007/s00128-007-9013-1

Cited by 7 publications

(4 citation statements)

References 11 publications

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“…Several cohort studies have shown that exposure to As during development may be associated with neurodevelopmental disorders. The levels of As contents of the placenta of women living in areaes where tap water was contaminated with As were around 23-34 g/kg (Concha et al, 1998;Hamadani et al, 2011;Rocha-Amador et al, 2007;Rosado et al, 2007;Tabacova et al, 1994;Tsai et al, 2003;von Ehrenstein et al, 2007;Wang et al, 2007;Wasserman et al, 2004Wasserman et al, , 2007. In addition, children pre-and postnatally exposed to As showed some neurodevelopment disorders, including decreased IQ, at ages 5-15 years, as well as urinary As concentrations of 73-225 g/L (Rodriguez-Barranco et al, 2013).…”

Section: Discussionmentioning

confidence: 99%

“…In recent years, there has been heightened concern over the potential for occupational or environmental exposure of children and adolescents to arsenic. Clinical and epidemiological studies in several countries, including India and Bangladesh, China, and other countries in Southeast Asia, Central and South America, have shown that high arsenic exposure through tap water induced impairments in intellectual function, verbal abilities, long-term memory, and other cognitive deficits in schoolchildren (Hamadani et al, 2011;Rocha-Amador et al, 2007;Rosado et al, 2007;Tsai et al, 2003;von Ehrenstein et al, 2007;Wang et al, 2007;Wasserman et al, 2004Wasserman et al, , 2007. Thus, arsenite had detrimental effects on the development and function of the nervous system.…”

Section: Introductionmentioning

confidence: 99%

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Prenatal sodium arsenite affects early development of serotonergic neurons in the fetal rat brain

Senuma

Mori

Ogawa

et al. 2014

Intl J of Devlp Neuroscience

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Prenatal arsenite exposure has been associated with developmental disorders in children, including reduced IQ and language abnormalities. Animal experiments have also shown that exposure to arsenite during development induced developmental neurotoxicity after birth. However, the evidence is not enough, and the mechanism is poorly understood, especially on the exposure during early brain development. This study assessed effects of sodium (meta) arsenite shortly after exposure on early developing fetal rat brains. Pregnant rats were administered 50 mg/L arsenite in their drinking water or 20 mg/kg arsenite orally using a gastric tube, on gestational days (GD) 9-15. Fetal brains were examined on GD16. Pregnant rats administered 20 mg/kg arsenite showed reductions in maternal body weight gain and food consumption during treatment, but not with 50 mg/L arsenite. Arsenite did not affect fetal development, as determined by body weight, mortality and brain size. Arsenite also did not induce excessive cell death or affect neural cell division in any region of the fetal neuroepithelium. Thyrosine hydroxylase immunohistochemistry revealed no difference in the distribution of catecholaminergic neurons between fetuses of arsenite treated and control rats. However, reductions in the number of serotonin positive cells in the fetal median and dorsal raphe nuclei were observed following maternal treatment with 20mg/kg arsenite. Image analysis showed that the serotonin positive areas decreased in all fetal mid- and hind-brain areas without altering distribution patterns. Maternal stress induced by arsenite toxicity did not alter fetal development. These results suggest that arsenite-induced neurodevelopmental toxicity involves defects in the early development of the serotonin nervous system.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Prenatal sodium arsenite affects early development of serotonergic neurons in the fetal rat brain

Senuma

Mori

Ogawa

et al. 2014

Intl J of Devlp Neuroscience

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“…S2, Table S2). The essential physiological and physicochemical parameters including blood volume (V), tissue/organ weight (W), tissue/organ exchange rate (Q), uptake/elimination/metabolic rate (k), gill sorption factor (a wg ), and fraction of Hg(II) dissolved in blood (f d ) can be estimated from published tilapia-related studies (Allen 1994;Liao et al 2005;Mahmoud and Mazrouh 2008;Nichols et al 1996;Thomann et al 1997;Wang et al 2007). The partition coefficients (p i ), the key PBPK model parameters, were estimated for each tissue or organ based on the experimental data by dividing Hg burden in tissues of that in blood at specific days 0.5, 1, and 7 after 0.1 mg L -1 Hg(II) exposure (Allen 1994).…”

Section: Exposure Modelmentioning

confidence: 99%

Assessing exposure risks for freshwater tilapia species posed by mercury and methylmercury

et al. 2016

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Waterborne and dietborne exposures of freshwater fish to mercury (Hg) in the forms of inorganic (Hg(II)) and organic (methylmercury or MeHg) affect their growth, development, and reproduction. However, an integrated mechanistic risk model framework to predict the impact of Hg(II)/MeHg on freshwater fish is lacking. Here, we integrated biokinetic, physiological and biogeographic data to calibrate and then establish key risk indices-hazardous quotient and exceedance risk-for freshwater tilapia species across geographic ranges of several major rivers in Taiwan. We found that Hg(II) burden was highest in kidney followed by gill, intestine, liver, blood, and muscle. Our results showed that Hg was less likely to pose mortality risk (mortality rate less than 5 %) for freshwater tilapia species. However, Hg is likely to pose the potential hazard to aquatic environments constrained by safety levels for aquatic organisms. Sensitivity analysis showed that amount of Hg accumulated in tilapia was most influenced by sediment uptake rate. Our approach opens up new possibilities for predicting future fish population health with the impacts of continued Hg exposure to provide information on which fish are deemed safe for human consumption.

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“…The total concentration of heavy metals was obtained by digestion mixturing 100-150 mg of the animal's dry flour with 5 mL HNO 3 70 % and 5 mL H 2 O 2 30 % (Huang et al 2003, Wang et al 2007). Heavy metals (Cr, Co, As, Cu, Zn, Cd, and Pb) were determined by ICP-MS Agilent Technologies 7500 CE and HR-ICP-MS Thermo Scientific Element XR at the Observatoire Midi-Pyrénées, Toulouse, France.…”

Section: Fish Sampling and Analysismentioning

confidence: 99%

Heavy Metals Bioaccumulation and Risk Estimation in Edible Freshwater Fish From Pedroso Reservoir (Mayabeque, Cuba)

Pérez

Rizo

Acosta³

et al. 2021

RICA

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This work is a validation of the second step of a heavy metal monitoring procedure in Cuba fluvial ecosystems. Concentrations of seven heavy metals were measured by ICP-MS in water samples collected from the Pedroso reservoir (Mayabeque province, Cuba) and its main tributaries, as well as in edible muscle of three locally consumed fish species: Oreochromis spp., Tinca tinca and Clarias gariepinus. The results show a high concentration of Pb in areas near a paint factory (85.5 μg/L), an asphalt factory and a high traffic area (345.8 μg/L). Metal content (in mg/kg ww) in fish fillet ranged as follows: Cr (0.01-0.58), Co (0.01-0.58), Cu (0.23-88.16), Zn (4.9-29.9), As (0.01-0.86), Cd (0.02-2.93) and Pb (0.01-1.23). According to Cuban regulations, concentrations of Cd in muscle are not safe in 37.5 to 44.0 % of the studied fishes, while Pb is high in 14.0 to 20.0 %. Non-carcinogenic risk (HI) is present when daily intake is above 81 g/day. Carcinogenic risk (ELCR) is calculated to be 5.8 × 10–4 according to the US-EPA methodology. Fishermen families are the most sensitive population sector. Local authorities were informed and different measures were taken to avoid polluted fish consumption and the reduction of pollutant sources.

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Arsenic Distribution in a Tilapia (Oreochromis mossambicus) Water-Sediment Aquacultural Ecosystem in Blackfoot Disease Hyperendemic Areas

Cited by 7 publications

References 11 publications

Prenatal sodium arsenite affects early development of serotonergic neurons in the fetal rat brain

Prenatal sodium arsenite affects early development of serotonergic neurons in the fetal rat brain

Assessing exposure risks for freshwater tilapia species posed by mercury and methylmercury

Heavy Metals Bioaccumulation and Risk Estimation in Edible Freshwater Fish From Pedroso Reservoir (Mayabeque, Cuba)

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