EsturgeonV1, Main, Merge, bibRecord, 000558

Tissue Distribution, Maternal Transfer, and Age-Related Accumulation of Dechloranes in Chinese Sturgeon

Identifieur interne : 000558 ( Main/Merge ); précédent : 000557; suivant : 000559

Tissue Distribution, Maternal Transfer, and Age-Related Accumulation of Dechloranes in Chinese Sturgeon

Auteurs : HUI PENG [République populaire de Chine] ; KUN ZHANG [République populaire de Chine] ; YI WAN [République populaire de Chine] ; JIANYING HU [République populaire de Chine]

Source :

Environmental science & technology [ 0013-936X ] ; 2012.

RBID : Pascal:13-0237755

Descripteurs français

Pascal (Inist)
- Distribution, Age mère, Transfert, Accumulation, Chinois, Esturgeon.

English descriptors

KwdEn :
- Accumulation, Chinese, Distribution, Maternal age, Sturgeon, Transfer.

Abstract

While dechloranes have been detected in environmental media and wildlife, limited information was available on their tissue distribution in wildlife. Syn-dechlorane plus (syn-DP), anti-DP, synundecachloropentacyclooctadecadiene (syn-CI₁₁DP), anti-CI₁₁DP, dechlorane 602, dechlorane 603 and mirex were measured in 13 organs of 17 female Chinese sturgeon (Acipenser sinensis). Dechloranes were detected in all tissues and the highest concentrations of total dechloranes were detected in heart (87 pg/g ww, 4.5-645 pg/g ww), followed by adipose (61 pg/g ww, 14-531 pg/g ww) and eggs (57 pg/ g ww, 13-261 pg/g ww). The tissue distribution of DP was mainly determined by lipid partition, while Dec 602 and Dec 603 preferred to accumulate in the intestine and stomach. The values of f_anti (the concentration of anti-DP relative to the sum concentration of DP) in maternal tissues (0.72 ± 0.03 in musde) were significantly higher than those found in eggs (0.65 ± 0.04) (p < 0.001), while f_anti-CHIDP (the concentration of anti-Cl₁₁DP relative to the sum concentration of Cl₁₁DP) in maternal tissues (0.59 ± 0.10 in muscle) was significantly lower than that in eggs (0.75 ± 0.13) (p < 0.05). High maternal transfer efficiencies of dechloranes were observed in eggs, which accounted for 49% of the total body burden, and the ratios of concentrations in eggs to maternal tissues (EMR) for mirex, Dec 602, Dec 603, syn-Cl₁₁DP, anti-Cl₁₁DP, syn-DP, and anti-DP were 18, 8.8, 5.2, 2.6, 5.2, 5.5 and 3.7, respectively, which are dependent on their K_OW values (r = -0.66, p < 0.01). Negative age-related trends were observed for mirex, Dec 603, syn-Cl₁₁DP and anti-Cl₁₁DP in eggs (R² = 0.28-0.38, p = 0.02-0.05), which were possibly due to their high transfer efficiencies to eggs from maternal body (49%).

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Pascal:13-0237755

Le document en format XML

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<author><name sortKey="Hui Peng" sort="Hui Peng" uniqKey="Hui Peng" last="Hui Peng">HUI PENG</name>
<affiliation wicri:level="4"><inist:fA14 i1="01"><s1>MOE Laboratory for Earth Surface Process, College of Urban and Environmental Sciences, Peking University</s1>
<s2>Beijing 100871</s2>
<s3>CHN</s3>
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<country>République populaire de Chine</country>
<placeName><settlement type="city">Pékin</settlement>
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<orgName type="university">Université de Pékin</orgName>
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<author><name sortKey="Kun Zhang" sort="Kun Zhang" uniqKey="Kun Zhang" last="Kun Zhang">KUN ZHANG</name>
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<author><name sortKey="Yi Wan" sort="Yi Wan" uniqKey="Yi Wan" last="Yi Wan">YI WAN</name>
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<sourceDesc><biblStruct><analytic><title xml:lang="en" level="a">Tissue Distribution, Maternal Transfer, and Age-Related Accumulation of Dechloranes in Chinese Sturgeon</title>
<author><name sortKey="Hui Peng" sort="Hui Peng" uniqKey="Hui Peng" last="Hui Peng">HUI PENG</name>
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<author><name sortKey="Kun Zhang" sort="Kun Zhang" uniqKey="Kun Zhang" last="Kun Zhang">KUN ZHANG</name>
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<country>République populaire de Chine</country>
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<author><name sortKey="Yi Wan" sort="Yi Wan" uniqKey="Yi Wan" last="Yi Wan">YI WAN</name>
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<author><name sortKey="Jianying Hu" sort="Jianying Hu" uniqKey="Jianying Hu" last="Jianying Hu">JIANYING HU</name>
<affiliation wicri:level="4"><inist:fA14 i1="01"><s1>MOE Laboratory for Earth Surface Process, College of Urban and Environmental Sciences, Peking University</s1>
<s2>Beijing 100871</s2>
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Accumulation</term>
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<term>Transfer</term>
</keywords>
<keywords scheme="Pascal" xml:lang="fr"><term>Distribution</term>
<term>Age mère</term>
<term>Transfert</term>
<term>Accumulation</term>
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<front><div type="abstract" xml:lang="en">While dechloranes have been detected in environmental media and wildlife, limited information was available on their tissue distribution in wildlife. Syn-dechlorane plus (syn-DP), anti-DP, synundecachloropentacyclooctadecadiene (syn-CI<sub>11</sub>
DP), anti-CI<sub>11</sub>
DP, dechlorane 602, dechlorane 603 and mirex were measured in 13 organs of 17 female Chinese sturgeon (Acipenser sinensis). Dechloranes were detected in all tissues and the highest concentrations of total dechloranes were detected in heart (87 pg/g ww, 4.5-645 pg/g ww), followed by adipose (61 pg/g ww, 14-531 pg/g ww) and eggs (57 pg/ g ww, 13-261 pg/g ww). The tissue distribution of DP was mainly determined by lipid partition, while Dec 602 and Dec 603 preferred to accumulate in the intestine and stomach. The values of f<sub>anti</sub>
 (the concentration of anti-DP relative to the sum concentration of DP) in maternal tissues (0.72 ± 0.03 in musde) were significantly higher than those found in eggs (0.65 ± 0.04) (p < 0.001), while f<sub>anti-CHIDP</sub>
 (the concentration of anti-Cl<sub>11</sub>
DP relative to the sum concentration of Cl<sub>11</sub>
DP) in maternal tissues (0.59 ± 0.10 in muscle) was significantly lower than that in eggs (0.75 ± 0.13) (p < 0.05). High maternal transfer efficiencies of dechloranes were observed in eggs, which accounted for 49% of the total body burden, and the ratios of concentrations in eggs to maternal tissues (EMR) for mirex, Dec 602, Dec 603, syn-Cl<sub>11</sub>
DP, anti-Cl<sub>11</sub>
DP, syn-DP, and anti-DP were 18, 8.8, 5.2, 2.6, 5.2, 5.5 and 3.7, respectively, which are dependent on their K<sub>OW</sub>
 values (r = -0.66, p < 0.01). Negative age-related trends were observed for mirex, Dec 603, syn-Cl<sub>11</sub>
DP and anti-Cl<sub>11</sub>
DP in eggs (R<sup>2</sup>
 = 0.28-0.38, p = 0.02-0.05), which were possibly due to their high transfer efficiencies to eggs from maternal body (49%).</div>
</front>
</TEI>
<affiliations><list><country><li>République populaire de Chine</li>
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<name sortKey="Jianying Hu" sort="Jianying Hu" uniqKey="Jianying Hu" last="Jianying Hu">JIANYING HU</name>
<name sortKey="Kun Zhang" sort="Kun Zhang" uniqKey="Kun Zhang" last="Kun Zhang">KUN ZHANG</name>
<name sortKey="Yi Wan" sort="Yi Wan" uniqKey="Yi Wan" last="Yi Wan">YI WAN</name>
</country>
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Tissue Distribution, Maternal Transfer, and Age-Related Accumulation of Dechloranes in Chinese Sturgeon

Tissue Distribution, Maternal Transfer, and Age-Related Accumulation of Dechloranes in Chinese Sturgeon

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Links to Exploration step

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Pour manipuler ce document sous Unix (Dilib)

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