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It was a retrospective cohort study. Patients diagnosed with idiopathic membranous nephropathy (IMN) and received rituximab (RTX) alone for one course of treatment during hospitalization in the Department of Nephrology of the First Hospital of Jilin University from March 2020 to March 2022 were enrolled. The patients were divided into 1 g standard treatment group (once 1 g every 2 weeks for twice) and 375 mg/m 2 experimental treatment group (375 mg/m 2 once a week for 4 weeks) according to the different methods of drug administration, and the efficacy and safety of different doses of RTX in the treatment of IMN were compared between the two groups to provide a reference for optimizing the clinical treatment protocol. The patients were followed up regularly for more than 9 months after treatment and the data were complete. A total of 69 patients were included with age of (51.7±11.8) years old, and 46 males (66.7%). There were 31 patients in the 1 g standard treatment group and 38 patients in the 375 mg/m 2 experimental treatment group. The proportion of first-treatment patients in the 1 g standard treatment group was higher than that in the 375 mg/m 2 experimental treatment group (87.1% vs. 65.8%, χ2=4.174, P=0.041). There were no statistically significant differences in the general data, clinical characteristics and baseline laboratory parameters between the two groups (all P>0.05). At the end of 3 months of treatment, 22 patients (31.9%) experienced remission, including 9 patients (29.0%) in the 1 g standard treatment group and 13 patients (34.2%) in the 375 mg/m 2 experimental treatment group ( χ2=0.211, P=0.646). At 6 months, 30 patients (43.5%) experienced remission, including 12 patients (38.7%) in the 1 g standard treatment group and 18 patients (47.4%) in the 375 mg/m 2 experimental treatment group ( χ2=0.521, P=0.470). At 9 months, 38 patients (55.1%) achieved remission, including 18 patients (58.1%) in the 1 g standard treatment group and 20 patients (52.6%) in the 375 mg/m 2 experimental treatment group ( χ2=0.204, P=0.652). At 9 months, the 24 h urine protein of 1 g standard treatment group and 375 mg/m 2 experimental treatment group decreased by 7.93 (6.24, 8.46) g and 7.45 (5.66, 8.67) g (both P<0.05), respectively, and serum albumin increased by 16.4 (15.5, 17.5) g/L and 15.5 (9.0, 15.8) g/L (both P<0.05), respectively, from the baseline value. Kaplan-Meier survival analysis result showed that there was no significant difference in the time of phospholipase A2 receptor titer decreasing to <5 RU/ml between the two groups (Log-rank χ2=3.653, P=0.056). Twenty-three non-serious adverse events occurred in the 1 g standard treatment group, involving 16 patients, and 10 non-serious adverse events occurred in the 375 mg/m 2 experimental treatment group, involving 10 patients. There was better safety in the 375 mg/m 2 experimental treatment group than that in the 1 g standard treatment group ( Fisher value=8.593, P=0.015). Both 375 mg/m 2 regimen and 1 g regimen of RTX in IMN patients are effective in relieving proteinuria and elevating serum albumin. The 375 mg/m 2 regimen of RTX has a lower incidence of adverse events compared with the 1 g regimen.
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BackgroundThe etiology and pathogenesis of somatic symptom disorder are complicated, for which no effective treatment currently exists, posing a critical impact on their quality of life. ObjectiveTo analyze the current situation and development trend in domestic and foreign research on somatic symptom disorder from 2011 to 2021, and to better understand the research frontiers and hot spots in this field. MethodsOn 31 August 2022, literature on somatic symptom disorder published from January 1, 2011 to January 1, 2023 were searched in China National knowledge Infrastructure (CNKI), Wanfang Data Knowledge Service Platform, Web of Science and PubMed, and a total of 15 035 articles were included, then the visualization analysis of the number of publications and keywords was conducted based on Microsoft Excel and CiteSpace software. ResultsIn the field of somatic symptoms disorder research from 2011 to 2021, the number of annual publications demonstrated an overall upward trend in foreign studies, and displayed a slow downward trend in domestic studies. The keyword co-occurrence network analysis revealed that the top five high-frequency keywords were "mental health" "depressive disorder" "depression" "anxiety" and "somatic symptom" in domestic studies, and were "symptom" "prevalence" "depression" "disorder" and "quality of life" in foreign studies. The burst analysis suggested that the burst terms in past five years were "somatic symptom" "syndrome" and "quality of life" in domestic studies, and were "major depressive disorder" and "outcome" in foreign studies. The clustering analysis yielded 8 clusters in domestic studies and 4 clusters in foreign studies, reflecting in the related disease, prevention and treatment protocols and epidemiological characteristics of somatic symptom disorder. ConclusionIn recent years, the publications and academic concerns regarding the research on somatic symptom disorder show an upward trend in foreign studies and are relatively inadequate in domestic studies, and both the domestic and foreign studies have been focused on the influencing factors of somatic symptom disorder. [Funded by the Medical Health Science and Technology Project of Zhejiang Provincial (number, 2020PY064); Medical Health Science and Technology Project of Hangzhou (number, 0020190783)]