Dewailly Eric, Chateau-Degat Ludivine, Suhas Edouard
Unite de Recherche en Sante publique, Centre de Recherche du CHUQ, Universite Laval, 2875 boulevard Laurier, Edifice Delta 2, bureau 600, Quebec, Canada G1V 2M2.
Asia Pac J Clin Nutr. 2008;17(1):86-93.
French Polynesians, like other remote maritime populations are intimately connected to the ocean which nourishes their daily life and culture. Their reliance on fish raises the issue of potential exposure to harmful natural and anthropogenic contaminants as well as providing essential nutrients. The purpose of this study was to assess the risks and benefits of fish consumption in French Polynesia. This cross-sectional study included 195 adults aged 18 years old and over from the Tahiti and Moorea islands. Fatty acids, selenium (Se) and mercury (Hg) blood concentrations were measured in participants and were all very high. Blood concentrations indicate that Hg, Se and omega-3 fatty acids have a common origin, i.e. fish consumption. In comparing the Polynesian group with northern populations, we found that the Polynesian group had levels of Hg similar to those observed in Inuit populations (geometric mean (range): 90.3 (15-420) nmol/L vs. Inuit: m(r): 79.6 (4-560) nmol/L). Similar results were observed with Se blood concentrations. The fatty acid concentration was also similar to that of the Inuit population even though the specific profile of fatty acids differed. For the first time, we report very high blood concentrations of mercury, selenium and omega-3 fatty acids in a fishing population from the South Pacific, comparable to those reported among fishing populations from the Northern hemisphere. Further work is ongoing to better substantiate public health nutritional policies.
法属波利尼西亚人与其他偏远海洋地区的人群一样，与滋养他们日常生活和文化的海洋紧密相连。他们对鱼类的依赖引发了潜在接触有害天然和人为污染物的问题，同时鱼类也提供了必需的营养物质。本研究的目的是评估法属波利尼西亚人食用鱼类的风险和益处。这项横断面研究纳入了来自塔希提岛和莫雷阿岛的195名18岁及以上的成年人。测量了参与者血液中的脂肪酸、硒（Se）和汞（Hg）浓度，结果均非常高。血液浓度表明汞、硒和ω-3脂肪酸有共同的来源，即食用鱼类。在将波利尼西亚人群与北方人群进行比较时，我们发现波利尼西亚人群的汞水平与因纽特人群中观察到的水平相似（几何均值（范围）：90.3（15 - 420）nmol/L，因纽特人：m(r)：79.6（4 - 560）nmol/L）。硒的血液浓度也观察到了类似结果。脂肪酸浓度也与因纽特人群相似，尽管脂肪酸的具体谱有所不同。我们首次报告了南太平洋一个捕鱼人群中血液中汞、硒和ω-3脂肪酸的浓度非常高，与北半球捕鱼人群中报告的浓度相当。正在开展进一步的工作，以更好地证实公共卫生营养政策。
