影响黑头鸥(Laridae, Chroicocephalus ridibundus)血液中免疫细胞的参考铅浓度的估算

IF 1.4 4区 环境科学与生态学 Q3 BIODIVERSITY CONSERVATION Avian Conservation and Ecology Pub Date : 2022-11-26 DOI:10.5751/ace-02336-170240
Nana Ushine, Osamu Kurata, Yoshikazu Tanaka, Shouta Nakayama, Mayumi Ishizuka, Takuya Kato, Shin-Ichi Hayama
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引用次数: 0

摘要

铅(Pb)污染的生物学效应已在不同物种中得到报道。在日本北海道以南地区,铅产品(包括子弹)的使用没有限制。地方政府公布了水体土壤沉积物中存在铅的情况。以往的研究已经证实血铅水平(BLL)与免疫细胞之间的关系。本研究旨在阐明铅污染对免疫细胞的影响。总共捕获了170只黑头鸥,其中包括2018年11月至2021年4月在东京湾的一个种群,以及2019年1月至2021年4月在三川湾的一个种群。以白细胞计数(WBC)、嗜异性粒细胞比例(Het)、淋巴细胞比例(Lym)、嗜异性粒细胞与淋巴细胞之比(H/L)、CD4信使RNA拷贝数、CD8α信使RNA拷贝数为客观变量,以BLL为解释变量进行线性回归分析。BLL < 1.0µg/dL组Het显著低于BLL > 3.5µg/dL组,Lym显著高于BLL > 3.5µg/dL组(P < 0.05)。此外,BLL < 1.0µg/dL组的H/L比显著低于BLL > 3.5µg/dL组。BLL在1.0 ~ 3.5µg/dL组CD8α和WBC高于BLL < 1.0µg/dL组。本研究提示,铅污染对黑头鸥免疫细胞的影响低于以往一些标准值。受铅污染的海鸥可能对免疫功能产生间接的负面影响,可能使其更容易感染传染病。铅是一种主要的环境污染物,必须采取防治措施。
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Estimation of the reference lead (Pb) concentration levels affecting immune cells in the blood of Black-headed Gulls (Chroicocephalus ridibundus, Laridae)
The biological effects of lead (Pb) contamination have been reported in various species. There are no restrictions on the use of Pb products, including bullets, in the areas south of Hokkaido, Japan. Local governments have announced the presence of Pb in the soil sediments of water bodies. Previous studies have confirmed the relationship between blood Pb level (BLL) and immune cells. This study was performed with the aim of clarifying the effect of Pb contamination on immune cells. In total, 170 Black-headed Gulls (Chroicocephalus ridibundus) were captured, including a population in Tokyo Bay between November 2018 and April 2021 and a population in Mikawa Bay between January 2019 and April 2021. Linear regression analysis was performed with the white blood cell count (WBC), proportion of heterophils (Het), proportion of lymphocytes (Lym), ratio of heterophils and lymphocytes (H/L ratio), copy number of CD4 messenger RNA, and copy number of CD8α messenger RNA as the objective variables, and the BLL as the explanatory variable. The group with BLL < 1.0 µg/dL had a significantly lower Het and higher Lym than that with BLL > 3.5 µg/dL (P < 0.05). In addition, the group with BLL < 1.0 µg/dL had a significantly lower H/L ratio than that with BLL > 3.5 µg/dL. CD8α and WBC were higher in the group with BLL ranging from 1.0 to 3.5 µg/dL than in the group with BLL < 1.0 µg/dL. This study suggests that the effect of Pb pollution on the immune cells of Black-headed Gulls is lower than some previous criteria values. It is possible that gulls affected by Pb contamination suffer indirect negative effects on immune function, possibly making them more susceptible to infectious diseases. Pb is a major environmental pollutant, against which measures must be taken.
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来源期刊
Avian Conservation and Ecology
Avian Conservation and Ecology BIODIVERSITY CONSERVATION-ORNITHOLOGY
CiteScore
2.20
自引率
7.10%
发文量
43
审稿时长
>12 weeks
期刊介绍: Avian Conservation and Ecology is an open-access, fully electronic scientific journal, sponsored by the Society of Canadian Ornithologists and Birds Canada. We publish papers that are scientifically rigorous and relevant to the bird conservation community in a cost-effective electronic approach that makes them freely available to scientists and the public in real-time. ACE is a fully indexed ISSN journal that welcomes contributions from scientists all over the world. While the name of the journal implies a publication niche of conservation AND ecology, we think the theme of conservation THROUGH ecology provides a better sense of our purpose. As such, we are particularly interested in contributions that use a scientifically sound and rigorous approach to the achievement of avian conservation as revealed through insights into ecological principles and processes. Papers are expected to fall along a continuum of pure conservation and management at one end to more pure ecology at the other but our emphasis will be on those contributions with direct relevance to conservation objectives.
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