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Amro Hamdoun - One of the best experts on this subject based on the ideXlab platform.

  • Mercury Levels of yellowfin tuna thunnus albacares are associated with capture location
    Environmental Pollution, 2017
    Co-Authors: Sascha C.t. Nicklisch, Lindsay T. Bonito, Stuart A Sandin, Amro Hamdoun
    Abstract:

    Mercury is a toxic compound to which humans are exposed by consumption of fish. Current fish consumption advisories focus on minimizing the risk posed by the species that are most likely to have high Levels of Mercury. Less accounted for is the variation within species, and the potential role of the geographic origin of a fish in determining its Mercury Level. Here we surveyed the Mercury Levels in 117 yellowfin tuna caught from 12 different locations worldwide. Our results indicated significant variation in yellowfin tuna methylMercury load, with Levels that ranged from 0.03 to 0.82 μg/g wet weight across individual fish. Mean Mercury Levels were only weakly associated with fish size (R2 < 0.1461) or lipid content (R2 < 0.00007) but varied significantly, by a factor of 8, between sites. The results indicate that the geographic origin of fish can govern Mercury load, and argue for better traceability of fish to improve the accuracy of exposure risk predictions.

  • Mercury Levels of yellowfin tuna (Thunnus albacares) are associated with capture location.
    Environmental Pollution, 2017
    Co-Authors: Sascha C.t. Nicklisch, Lindsay T. Bonito, Stuart A Sandin, Amro Hamdoun
    Abstract:

    Mercury is a toxic compound to which humans are exposed by consumption of fish. Current fish consumption advisories focus on minimizing the risk posed by the species that are most likely to have high Levels of Mercury. Less accounted for is the variation within species, and the potential role of the geographic origin of a fish in determining its Mercury Level. Here we surveyed the Mercury Levels in 117 yellowfin tuna caught from 12 different locations worldwide. Our results indicated significant variation in yellowfin tuna methylMercury load, with Levels that ranged from 0.03 to 0.82 μg/g wet weight across individual fish. Mean Mercury Levels were only weakly associated with fish size (R2 

Mohsen Nazeri - One of the best experts on this subject based on the ideXlab platform.

  • A Prospective Clinical Study on Blood Mercury Levels Following Endodontic Root-end Surgery with Amalgam
    Iranian endodontic journal, 2013
    Co-Authors: Masoud Saatchi, Elham Shadmehr, Seyed Morteza Talebi, Mohsen Nazeri
    Abstract:

    Article Type: Original Article Introduction: The purpose of this clinical study was to compare the blood Mercury Levels before and after endodontic surgery using amalgam as a root-end filling material. Materials and Methods: Fourteen patients requiring periradicular surgery participated in this prospective clinical study. A zinc-free amalgam was employed as root-end filling material. Blood samples were collected at three intervals: immediately before, immediately after and one week postoperatively. Mercury content of the blood was determined using gold amalgamation cold-vapor atomic absorption spectrometry. Obtained data were analyzed using analysis of variance for repeated measures and paired t-test. Results: The mean (SD) of blood Mercury Levels was 2.20 (0.24) ng/mL immediately before surgery, 2.24 (0.28) ng/mL immediately after surgery and 2.44 (0.17) ng/mL one week after the periradicular surgery. The blood Mercury Level one week post- operative was significantly higher than both blood Mercury Levels immediately before (P

  • a prospective clinical study on blood Mercury Levels following endodontic root end surgery with amalgam
    iranian endodontic journal, 2013
    Co-Authors: Masoud Saatchi, Elham Shadmehr, Seyed Morteza Talebi, Mohsen Nazeri
    Abstract:

    Article Type: Original Article Introduction: The purpose of this clinical study was to compare the blood Mercury Levels before and after endodontic surgery using amalgam as a root-end filling material. Materials and Methods: Fourteen patients requiring periradicular surgery participated in this prospective clinical study. A zinc-free amalgam was employed as root-end filling material. Blood samples were collected at three intervals: immediately before, immediately after and one week postoperatively. Mercury content of the blood was determined using gold amalgamation cold-vapor atomic absorption spectrometry. Obtained data were analyzed using analysis of variance for repeated measures and paired t-test. Results: The mean (SD) of blood Mercury Levels was 2.20 (0.24) ng/mL immediately before surgery, 2.24 (0.28) ng/mL immediately after surgery and 2.44 (0.17) ng/mL one week after the periradicular surgery. The blood Mercury Level one week post- operative was significantly higher than both blood Mercury Levels immediately before (P<0.001) and immediately after (P=0.005) the surgery. Conclusion: Placement of an amalgam retroseal during endodontic surgery can increase blood Mercury Levels after one week. The Mercury Levels however, are still lower than the toxic Mercury Levels. We suggest using more suitable and biocompatible root-end filling materials.

Sascha C.t. Nicklisch - One of the best experts on this subject based on the ideXlab platform.

  • Mercury Levels of yellowfin tuna thunnus albacares are associated with capture location
    Environmental Pollution, 2017
    Co-Authors: Sascha C.t. Nicklisch, Lindsay T. Bonito, Stuart A Sandin, Amro Hamdoun
    Abstract:

    Mercury is a toxic compound to which humans are exposed by consumption of fish. Current fish consumption advisories focus on minimizing the risk posed by the species that are most likely to have high Levels of Mercury. Less accounted for is the variation within species, and the potential role of the geographic origin of a fish in determining its Mercury Level. Here we surveyed the Mercury Levels in 117 yellowfin tuna caught from 12 different locations worldwide. Our results indicated significant variation in yellowfin tuna methylMercury load, with Levels that ranged from 0.03 to 0.82 μg/g wet weight across individual fish. Mean Mercury Levels were only weakly associated with fish size (R2 < 0.1461) or lipid content (R2 < 0.00007) but varied significantly, by a factor of 8, between sites. The results indicate that the geographic origin of fish can govern Mercury load, and argue for better traceability of fish to improve the accuracy of exposure risk predictions.

  • Mercury Levels of yellowfin tuna (Thunnus albacares) are associated with capture location.
    Environmental Pollution, 2017
    Co-Authors: Sascha C.t. Nicklisch, Lindsay T. Bonito, Stuart A Sandin, Amro Hamdoun
    Abstract:

    Mercury is a toxic compound to which humans are exposed by consumption of fish. Current fish consumption advisories focus on minimizing the risk posed by the species that are most likely to have high Levels of Mercury. Less accounted for is the variation within species, and the potential role of the geographic origin of a fish in determining its Mercury Level. Here we surveyed the Mercury Levels in 117 yellowfin tuna caught from 12 different locations worldwide. Our results indicated significant variation in yellowfin tuna methylMercury load, with Levels that ranged from 0.03 to 0.82 μg/g wet weight across individual fish. Mean Mercury Levels were only weakly associated with fish size (R2 

Masoud Saatchi - One of the best experts on this subject based on the ideXlab platform.

  • A Prospective Clinical Study on Blood Mercury Levels Following Endodontic Root-end Surgery with Amalgam
    Iranian endodontic journal, 2013
    Co-Authors: Masoud Saatchi, Elham Shadmehr, Seyed Morteza Talebi, Mohsen Nazeri
    Abstract:

    Article Type: Original Article Introduction: The purpose of this clinical study was to compare the blood Mercury Levels before and after endodontic surgery using amalgam as a root-end filling material. Materials and Methods: Fourteen patients requiring periradicular surgery participated in this prospective clinical study. A zinc-free amalgam was employed as root-end filling material. Blood samples were collected at three intervals: immediately before, immediately after and one week postoperatively. Mercury content of the blood was determined using gold amalgamation cold-vapor atomic absorption spectrometry. Obtained data were analyzed using analysis of variance for repeated measures and paired t-test. Results: The mean (SD) of blood Mercury Levels was 2.20 (0.24) ng/mL immediately before surgery, 2.24 (0.28) ng/mL immediately after surgery and 2.44 (0.17) ng/mL one week after the periradicular surgery. The blood Mercury Level one week post- operative was significantly higher than both blood Mercury Levels immediately before (P

  • a prospective clinical study on blood Mercury Levels following endodontic root end surgery with amalgam
    iranian endodontic journal, 2013
    Co-Authors: Masoud Saatchi, Elham Shadmehr, Seyed Morteza Talebi, Mohsen Nazeri
    Abstract:

    Article Type: Original Article Introduction: The purpose of this clinical study was to compare the blood Mercury Levels before and after endodontic surgery using amalgam as a root-end filling material. Materials and Methods: Fourteen patients requiring periradicular surgery participated in this prospective clinical study. A zinc-free amalgam was employed as root-end filling material. Blood samples were collected at three intervals: immediately before, immediately after and one week postoperatively. Mercury content of the blood was determined using gold amalgamation cold-vapor atomic absorption spectrometry. Obtained data were analyzed using analysis of variance for repeated measures and paired t-test. Results: The mean (SD) of blood Mercury Levels was 2.20 (0.24) ng/mL immediately before surgery, 2.24 (0.28) ng/mL immediately after surgery and 2.44 (0.17) ng/mL one week after the periradicular surgery. The blood Mercury Level one week post- operative was significantly higher than both blood Mercury Levels immediately before (P<0.001) and immediately after (P=0.005) the surgery. Conclusion: Placement of an amalgam retroseal during endodontic surgery can increase blood Mercury Levels after one week. The Mercury Levels however, are still lower than the toxic Mercury Levels. We suggest using more suitable and biocompatible root-end filling materials.

Stuart A Sandin - One of the best experts on this subject based on the ideXlab platform.

  • Mercury Levels of yellowfin tuna thunnus albacares are associated with capture location
    Environmental Pollution, 2017
    Co-Authors: Sascha C.t. Nicklisch, Lindsay T. Bonito, Stuart A Sandin, Amro Hamdoun
    Abstract:

    Mercury is a toxic compound to which humans are exposed by consumption of fish. Current fish consumption advisories focus on minimizing the risk posed by the species that are most likely to have high Levels of Mercury. Less accounted for is the variation within species, and the potential role of the geographic origin of a fish in determining its Mercury Level. Here we surveyed the Mercury Levels in 117 yellowfin tuna caught from 12 different locations worldwide. Our results indicated significant variation in yellowfin tuna methylMercury load, with Levels that ranged from 0.03 to 0.82 μg/g wet weight across individual fish. Mean Mercury Levels were only weakly associated with fish size (R2 < 0.1461) or lipid content (R2 < 0.00007) but varied significantly, by a factor of 8, between sites. The results indicate that the geographic origin of fish can govern Mercury load, and argue for better traceability of fish to improve the accuracy of exposure risk predictions.

  • Mercury Levels of yellowfin tuna (Thunnus albacares) are associated with capture location.
    Environmental Pollution, 2017
    Co-Authors: Sascha C.t. Nicklisch, Lindsay T. Bonito, Stuart A Sandin, Amro Hamdoun
    Abstract:

    Mercury is a toxic compound to which humans are exposed by consumption of fish. Current fish consumption advisories focus on minimizing the risk posed by the species that are most likely to have high Levels of Mercury. Less accounted for is the variation within species, and the potential role of the geographic origin of a fish in determining its Mercury Level. Here we surveyed the Mercury Levels in 117 yellowfin tuna caught from 12 different locations worldwide. Our results indicated significant variation in yellowfin tuna methylMercury load, with Levels that ranged from 0.03 to 0.82 μg/g wet weight across individual fish. Mean Mercury Levels were only weakly associated with fish size (R2