• Xue Ren, Ciming Pan, Zimeng Pan, Shanshan Zhao, Chen Wu, Wan Chen, Mengchen Liu, Xingyue Han, Hongying Kuang, and Miao Qu.
• Hei Longjiang University of Chinese Medicine, Hei Longjiang, China.
• Medicine (Baltimore). 2022 Nov 11; 101 (45): e31133e31133.

BackgroundThe recent article Copper induces cell death by targeting lipoylated TCA cycle proteins has attracted much attention. Although copper-induced cell death has only recently been formally proposed, it has been studied much earlier. This study aims to undertake a bibliometric analysis of the literature on copper-induced cell death to understand the development of copper-induced cell death better and identify potential new research directions.MethodsWith the help of Cite Space software, visual analysis is carried out on the annual number of published papers, countries/regions and institutions, journals co-citation, literature co-citation and reference burst, keywords co-occurrence, clustering, and burst.ResultsA search of 770 articles published in English over the last ten years showed a fluctuating trend of increasing numbers of articles. China had the highest number of articles (190% or 24.68%), followed by the USA and India. Inflammation, biological evaluation, nanoparticle, and cu(ii) have been popular research themes in the last 4 years. The keyword clusters are summarized in 8 categories, including exposure, complexe, er stress, cleavage, paraptosis, cancer, glutamate, reactive oxygen species (ROS), expression. The hot topics are mainly focused on the exploration of mechanisms and related diseases, including induced apoptosis, aggregation, autophagy, endoplasmic reticulum stress, induced oxidative stress, and inflammation. Parkinson's disease and cancer are 2 diseases that are closely related to copper-induced cell death.ConclusionThis study provides a visual analysis of copper-induced cell death trends and provides some hidden potentially useful information for future research directions.Copyright © 2022 the Author(s). Published by Wolters Kluwer Health, Inc.

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