Short-term night lighting disrupts lipid and glucose metabolism in Zebra Finches:Implication for urban stopover birds  

作　　者：Na Zhu Jing Shang Shuping Zhang 

机构地区：[1]Key Laboratory of Ecology and Environment in Minority Areas(National Ethnic Affairs Commission),Minzu University of China,Beijing 100081,China [2]College of Life and Environmental Sciences,Minzu University of China,Beijing 100081,China

出　　处：《Avian Research》2023年第4期663-670,共8页鸟类学研究（英文版）

基　　金：supported by grants from Key laboratory of Ecology and Environment in Minority Area,National Ethnic Affairs Commission(KLEEMA202207);the Graduate Research and Practice Projects of Minzu University of China(BZKY2022042).

摘　　要：Night lighting has been shown to affect wild animals.To date,the effects of night lighting on the metabolic homeostasis of birds that spend short time in urban environments remain unclear.Using model bird species Zebra Finch(Taeniopygia guttata),we investigated the effects of short-term night lighting on liver transcriptome,blood glucose,triglyceride,and thyroxine(T4 and T3)levels in birds exposed to two different night lighting duration periods(three days and six days).After three days of night lighting exposure,the expression of genes involved in fat synthesis in the liver was upregulated while the expression of genes involved in fatty acid oxidation and triglyceride decomposition was downregulated.There was also a reduction in blood triglyceride,glucose,and T3 concentrations.However,after six days of night lighting,the expression of genes associated with fatty acid decomposition and hyperglycemia in the liver was upregulated,while the expression of genes involved in fat synthesis was downregulated.Simultaneously,blood glucose levels and T3 concentration increased.These findings indicate that short-term exposure to night lighting can disrupt the lipid and glucose metabolism of small passerine birds,and longer stopovers in urban area with intense night lighting may cause birds to consume more lipid energy.

关 键 词：BIRDS Glucose LIPID Metabolism Night lighting SHORT-TERM 

分 类 号：Q958[生物学—动物学]