Objectives This study aimed to investigate the distribution patterns and research frontiers of international literature and thus present a holistic bibliometric evaluation of the studies on IgA nephropathy. Methods The Web of Science Core Collection database was searched for studies of IgA nephropathy from January 2012 to March 2023. The keywords and references are analyzed by CiteSpace, while the countries and institutions are analyzed by VOSviewer. Results A total of 2987 publications on IgA nephropathy were included. The country with the most publications was China ( n = 1299), and the institution with the most publications was Peking University ( n = 139). The most frequent keywords were IgA nephropathy ( n = 2013), Oxford classification ( n = 482), and diseases ( n = 433). The keywords that continue to burst out at high intensity are multicenter study and gut microbiota. Moreover, the top five references for burst strength were also listed. Conclusions IgA nephropathy has attracted widespread research interest, particularly in high-prevalence areas. From 2012 to 2023, publications on IgA nephropathy show a linear increase. China is the country with the highest number of publications and Peking University is the institution with the highest number of publications. Current research hotspots and frontiers are mainly multicenter studies related to IgA nephropathy and its exploration with gut microbiota. Overall, we have provided a comprehensive scientometric analysis of IgA nephropathy that will inform researchers and healthcare practitioners. Supplementary Information The online version contains supplementary material available at 10.1007/s11255-023-03598-x.

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The prevalence of peripheral artery disease continues to rise, with major amputations and mortality remaining prominent. Frailty is a significant risk factor for adverse outcomes in the management of the vascular disease. The geriatric nutritional risk index has been used to predict adverse outcomes in lower extremity peripheral artery disease and is a nutrition‐based surrogate for frailty. The authors recruited 126 patients with peripheral artery disease who underwent endovascular stent implantation. As in previous reports, malnutrition was diagnosed by the geriatric nutritional risk index. The authors used Kaplan‐Meier and multivariate Cox proportional hazards regression analyses to analyze the risk of major adverse limb events, which included mortality, major amputation, and target limb revascularization. There were 67 major adverse limb events during a median follow‐up of 480 days. Malnutrition on the basis of the geriatric nutritional risk index was present in 31% of patients. Cox regression analysis showed that malnutrition based on the geriatric nutritional risk index was an independent predictor of major adverse limb events. Kaplan‐Meier analysis showed that major adverse limb events increased with worsening malnutrition. Our single‐center, retrospective evaluation of geriatric nutritional risk index (as a synonym for body health) correlates with an increased risk of major adverse limb events. Future directions should focus not only on identifying these patients but also on modifying risk factors to optimize long‐term outcomes.

Background The association between triglyceride glucose (TYG) index and depression is unclear. We conducted this analysis to explore whether higher TYG index is associated with a higher odd of depression. Aims The objective was to investigate the relationship between TYG and abdominal aortic calcification (AAC) in people over 60 years old. Methods The National Health and Nutrition Examination Survey data were analyzed using logistic regression models to examine the independent association between TYG index and the Kauppila AAC-24 score. Results A total of 1,408 people took part in our study. Participants with higher TYG quartiles had higher AAC scores. SAAC was defined as a Kauppila score > 6, and the prevalence of SAAC was 17.0%. After adjusting for relevant covariates, the multivariable-adjusted odds ratios (ORs) and 95% confidence intervals (CI) for participants in the third and fourth quartiles were 1.970 (1.232–3.150, P = 0.005) and 2.261 (1.404–3.644, P < 0.001). Subgroup analyses indicated that the positive association between TYG and SAAC persisted across population subgroups. Conclusion Triglyceride glucose index was negatively correlated with SAAC in the elderly.