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Facile and controllable synthesis of efficient and stable nonprecious electrocatalysts for the oxygen evolution reaction (OER) is crucial for prospective sustainable energy conversion and storage technologies. Iron-doped nickel sulfide nanosheet electrodes were synthesized through simple in situ sulfidation of nickel foil with ferrous chloride, which resulted in the formation of ultrathin Fe-doped Ni3S2 nanosheets on the Ni foam (NF) substrate (Fex-Ni3S2/NF). The developed Fe1-Ni2S3/NF electrocatalyst shows superb catalytic activity during the oxygen evolution reaction, owing to its high intrinsic activity, abundant active sites, and a superior transfer coefficient, requiring low overpotentials of only 244 and 306 mV at 100 mA cm–2 for the OER in 1.0 M KOH and 1.0 M KOH + 0.5 M NaCl solutions. This catalyst can maintain stable electrolysis in alkaline seawater for more than 100 h. The excellent activity and stability of this catalyst proved it to be an economical alternative to commercial noble metal-based catalysts in renewable energy-related technologies. [ABSTRACT FROM AUTHOR]

Rheumatoid arthritis is a widely prevalent autoimmune bone disease that imposes a significant burden on global healthcare systems due to its increasing incidence. In recent years, attention has focused on the interaction between gut homeostasis and the immune system, particularly in relation to bone health. Dysbiosis, which refers to an imbalance in the composition and function of the gut microbiota, has been shown to drive immune dysregulation through mechanisms such as the release of pro-inflammatory metabolites, increased gut permeability, and impaired regulatory T cell function. These factors collectively contribute to immune system imbalance, promoting the onset and progression of Rheumatoid arthritis. Dysbiosis induces both local and systemic inflammatory responses, activating key pro-inflammatory cytokines such as tumor necrosis factor-alpha, Interleukin-6, and Interleukin-17, which exacerbate joint inflammation and damage. Investigating the complex interactions between gut homeostasis and immune regulation in the context of Rheumatoid arthritis pathogenesis holds promise for identifying new therapeutic targets, revealing novel mechanisms of disease progression, and offering innovative strategies for clinical treatment., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2024 Qi, Chen, Tian, Zhong, Qi, Li and Xie.)

Objective: This study aims to visualize the trends and hotspots in the research of "ferroptosis in PD" and "pyroptosis in PD" through bibliometric analysis from the past to 2024., Methods: Literature was retrieved from the Web of Science Core Collection (WoSCC) from the past to February 16, 2024, and bibliometric analysis was conducted using Vosviewer and Citespace., Results: 283 and 542 papers were collected in the field of "ferroptosis in PD" and "pyroptosis in PD." The number of publications in both fields has increased yearly, especially in "ferroptosis in PD," which will become the focus of PD research. China, the United States and England had extensive exchanges and collaborations in both fields, and more than 60% of the top 10 institutions were from China. In the fields of "ferroptosis in PD" and "pyroptosis in PD," the University of Melbourne and Nanjing Medical University stood out in terms of publication numbers, citation frequency, and centrality, and the most influential journals were Cell and Nature, respectively. The keyword time zone map showed that molecular mechanisms and neurons were the research hotspots of "ferroptosis in PD" in 2023, while memory and receptor 2 were the research hotspots of "pyroptosis in PD" in 2023, which may predict the future research direction., Conclusion: This study provides insights into the development, collaborations, research themes, hotspots, and tendencies of "ferroptosis in PD" and "pyroptosis in PD." Overall situation of these fields is available for researchers to further explore the underlying mechanisms and potential treatments., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2024 Wu, Zhong, Tang and Xie.)