1.A bibliometric and visual analysis of the literature published in the journal of Organ Transplantation since its inception
Xi CAO ; Tao HUANG ; Qiwei YANG ; Lin YU ; Xiaowen WANG ; Wenfeng ZHU ; Haoqi CHEN ; Ning FAN ; Genshu WANG
Organ Transplantation 2026;17(1):133-142
Objective To systematically analyze the literature characteristics of Journal of Organ Transplantation since its inception. Methods Using the China National Knowledge Infrastructure (CNKI) academic journal full-text database as the data source, all articles published in the Journal of Organ Transplantation from January 2010 to August 2025 were retrieved. After excluding non-academic papers, a total of 1 568 research papers were included. R language 4.3.0, Bibliometrix package 3.2.1, and Citespace software were used to analyze the number of publications, publishing institutions, authors, keywords and other aspects. Results The number of publications in Journal of Organ Transplantation increased from an average of 82 articles per year in the early years after its inception to 113 articles per year in recent years, a growth of 37.8%. The geographical distribution of publishing institutions covers 32 provinces, cities and autonomous regions nationwide, mainly concentrated in the South China, East China and North China regions, and has now basically covered the central and western regions in recent years. The author collaboration network includes 45 authors distributed across 7 major collaboration clusters, forming a stable multi-level national research system centered on key university-affiliated hospitals. The high-frequency keywords are dominated by "liver transplantation" (425 times) and "kidney transplantation" (396 times). The theme evolution shows a clear three-stage characteristic: initially focusing on clinical technology application, deepening to immune mechanism exploration in the middle stage, and recently (since 2022) focusing on cutting-edge research areas such as xenotransplantation. Conclusions Journal of Organ Transplantation has witnessed the rapid development of China's organ transplantation cause, fully reflecting the research status and trends in China's organ transplantation field, and has provided an important platform for the future development and international cooperation in China's organ transplantation field.
2.Research progress of pelvic lymph node dissection in patients with localized intermediate- and high-risk prostate cancer
Zhiqiang CHEN ; Zhuoran LI ; Jin LUO ; Qiwei LIU ; Yuqi JIA ; Jinqiao LI ; Qiming YANG ; Yujie DONG ; Shaoxi NIU ; Baojun WANG
Chinese Journal of Urology 2025;46(5):397-400
The strategy of pelvic lymph node dissection in patients with localized intermediate- and high-risk prostate cancer(PCa)has been one of the research hotspots in recent years. This review synthesizes recent progress in clinical,diagnostic imaging and immunological aspects of pelvic lymph node dissection.It is found that the detection rate of metastatic lymph nodes in patients with localized intermediate-risk PCa is relatively low,and the survival benefit after dissection is not significant. PSMA PET/CT examination can be used instead of lymph node dissection for staging. Extended lymph node dissection in patients with localized high-risk PCa can achieve a higher detection rate of metastatic lymph nodes and possible survival benefits. However,excessive lymph node dissection can weaken the response ability to immunotherapy. The strategy for pelvic lymph node dissection in patients with localized intermediate-high-risk PCa needs further study.
3.Clinical application study of the "two-winged" retraction technique in laparoscopic complete mesocolic resection for the left hemicolon
Lifeng XIE ; Jing JIA ; Qiwei CHEN ; Jianbin HOU ; Yan LIU ; Yiyang WU ; Xinyu LI
Chinese Journal of Gastrointestinal Surgery 2025;28(4):412-416
Objective:To explore the application value of the "Dual-Wing" traction technique in the medial & head lateral laparoscopic left hemicolectomy with radical resection.Methods:The "Dual-Wing " traction technique is based on the theory of mesenteric anatomy. The assistant lifts the proper mesentery of the digestive tract to be resected or the adjacent mesenteric tissue connected to it,thereby elevating the target organ and its mesentery as a whole away from the mesenteric bed. By utilizing the tension transmission between the proper mesenteries of adjacent organs to create counter-tension,the surgeon's operative actions are always maintained along the line of maximum counter-tension.After incising the mesenteric fusion line,this technique assists the surgeon in entering the fusion plane. A descriptive case series study method was adopted to retrospectively analyze the clinical and pathological data of 37 colorectal cancer patients who underwent laparoscopic left hemicolectomy with the "Dual-Wing" traction technique via a medial and cephalad approach, performed by the Department of Gastrointestinal Surgery at Dongjie Campus of the First Hospital of Quanzhou, Fujian Medical University, from May 2023 to November 2023.Results:All patients successfully underwent laparoscopic left hemicolectomy via the medial & head lateral approach using the "Dual-Wing" traction technique.The surgery adhered to the principles of total mesocolic excision and safely mobilized the left colon and its mesentery from the correct anatomical plane. In the entire group of patients,there were 14 males and 23 females; the mean operative time was 94.1±18.3 minutes; the mean intraoperative blood loss was 9.8±5.4 ml; the mean number of lymph nodes dissected was 18.1±3.9; the mean number of positive lymph nodes was 1.4±1.6; the pathological specimen resection margin grading was Grade A in 29 cases, Grade B in 8 cases, and no Grade C cases; the tumor TNM staging was Stage I in 3 cases, Stage IIA in 7 cases, Stage IIB in 6 cases, Stage IIIA in 2 cases, Stage IIIB in 15 cases, and Stage IIIC in 4 cases; the mean time to first flatus postoperatively was 35.7±7.5 hours; the mean length of hospital stay was 9.1±1.7 days. There were no intraoperative injuries to the pancreas or spleen. Postoperative complications occurred in 3 cases. No anastomotic leakage was observed in the entire group, and there were no deaths following the surgery.Conclusion:The application of the "Dual-Wing" traction technique to establish a stable surgical scenario can significantly reduce the demands on the assistant. It is conducive to maintaining mesenteric tension and fully exposing the surgical field. It also allows for the rapid identification and maintenance of the correct anatomical plane. For colorectal cancer patients, the surgery is safe and feasible, with satisfactory short-term therapeutic effects.
4.Clinical application study of the "two-winged" retraction technique in laparoscopic complete mesocolic resection for the left hemicolon
Lifeng XIE ; Jing JIA ; Qiwei CHEN ; Jianbin HOU ; Yan LIU ; Yiyang WU ; Xinyu LI
Chinese Journal of Gastrointestinal Surgery 2025;28(4):412-416
Objective:To explore the application value of the "Dual-Wing" traction technique in the medial & head lateral laparoscopic left hemicolectomy with radical resection.Methods:The "Dual-Wing " traction technique is based on the theory of mesenteric anatomy. The assistant lifts the proper mesentery of the digestive tract to be resected or the adjacent mesenteric tissue connected to it,thereby elevating the target organ and its mesentery as a whole away from the mesenteric bed. By utilizing the tension transmission between the proper mesenteries of adjacent organs to create counter-tension,the surgeon's operative actions are always maintained along the line of maximum counter-tension.After incising the mesenteric fusion line,this technique assists the surgeon in entering the fusion plane. A descriptive case series study method was adopted to retrospectively analyze the clinical and pathological data of 37 colorectal cancer patients who underwent laparoscopic left hemicolectomy with the "Dual-Wing" traction technique via a medial and cephalad approach, performed by the Department of Gastrointestinal Surgery at Dongjie Campus of the First Hospital of Quanzhou, Fujian Medical University, from May 2023 to November 2023.Results:All patients successfully underwent laparoscopic left hemicolectomy via the medial & head lateral approach using the "Dual-Wing" traction technique.The surgery adhered to the principles of total mesocolic excision and safely mobilized the left colon and its mesentery from the correct anatomical plane. In the entire group of patients,there were 14 males and 23 females; the mean operative time was 94.1±18.3 minutes; the mean intraoperative blood loss was 9.8±5.4 ml; the mean number of lymph nodes dissected was 18.1±3.9; the mean number of positive lymph nodes was 1.4±1.6; the pathological specimen resection margin grading was Grade A in 29 cases, Grade B in 8 cases, and no Grade C cases; the tumor TNM staging was Stage I in 3 cases, Stage IIA in 7 cases, Stage IIB in 6 cases, Stage IIIA in 2 cases, Stage IIIB in 15 cases, and Stage IIIC in 4 cases; the mean time to first flatus postoperatively was 35.7±7.5 hours; the mean length of hospital stay was 9.1±1.7 days. There were no intraoperative injuries to the pancreas or spleen. Postoperative complications occurred in 3 cases. No anastomotic leakage was observed in the entire group, and there were no deaths following the surgery.Conclusion:The application of the "Dual-Wing" traction technique to establish a stable surgical scenario can significantly reduce the demands on the assistant. It is conducive to maintaining mesenteric tension and fully exposing the surgical field. It also allows for the rapid identification and maintenance of the correct anatomical plane. For colorectal cancer patients, the surgery is safe and feasible, with satisfactory short-term therapeutic effects.
5.Research progress of pelvic lymph node dissection in patients with localized intermediate- and high-risk prostate cancer
Zhiqiang CHEN ; Zhuoran LI ; Jin LUO ; Qiwei LIU ; Yuqi JIA ; Jinqiao LI ; Qiming YANG ; Yujie DONG ; Shaoxi NIU ; Baojun WANG
Chinese Journal of Urology 2025;46(5):397-400
The strategy of pelvic lymph node dissection in patients with localized intermediate- and high-risk prostate cancer(PCa)has been one of the research hotspots in recent years. This review synthesizes recent progress in clinical,diagnostic imaging and immunological aspects of pelvic lymph node dissection.It is found that the detection rate of metastatic lymph nodes in patients with localized intermediate-risk PCa is relatively low,and the survival benefit after dissection is not significant. PSMA PET/CT examination can be used instead of lymph node dissection for staging. Extended lymph node dissection in patients with localized high-risk PCa can achieve a higher detection rate of metastatic lymph nodes and possible survival benefits. However,excessive lymph node dissection can weaken the response ability to immunotherapy. The strategy for pelvic lymph node dissection in patients with localized intermediate-high-risk PCa needs further study.
6.Assessment of postdoctoral training programs in a tertiary public hospital in Shanghai over the past 10 years
Beiqing JIANG ; Qiwei CHEN ; Zhongmin ZHENG
Modern Hospital 2024;24(5):769-772
The postdoctoral team is the driving force for hospital research work and it serves as an important reserve for the high-quality development of hospitals.Taking a tertiary public hospital in Shanghai as a research subject,this article exam-ined the postdoctoral recruitment,management,and research accomplishments of the hospital from 2013 to 2022.Additionally,this article investigated issues in postdoctoral training and made some suggests for improving management framework,recruitment and training and service mechanisms.
7.Porphyromonas gingivalis promotes the occurrence of esophageal squamous cell carcinoma via an inflammatory microenvironment
Haijun XU ; Yijun QI ; Dangrou WU ; Qiwei LIU ; Pan CHEN ; Mengxiang LI ; Yelin JIAO ; Haojie RUAN ; Zhitao LI ; Shegan GAO
Chinese Journal of Oncology 2024;46(8):746-754
Objective:To investigate the role of an inflammatory microenvironment induced by Porphyromonasgingivalis ( P. gingivalis) in the occurrence of esophageal squamous cell carcinoma (ESCC) in mice. Methods:A total of 180 C57BL/6 mice were randomly divided into 6 groups, i.e. control group, P. gingivalis group, 4NQO group, 4NQO + P. gingivalis group, 4NQO + P. gingivalis + celecoxib group, and 4NQO + P. gingivalis + antibiotic cocktail (ABC, including metronidazole, neomycin, ampicillin, and vancomycin) group, with 30 mice in each group, using the random number table. All mice were normalized by treatment with ABC in drinking water for 2 weeks. In the following 2 weeks, the mice in the control group and the P. gingivalis group were given drinking water, while the other 4 groups were treated with 30 μg/ml 4NQO in the drinking water. In weeks 11-12, the mice in the P. gingivalis group, the 4NQO + P. gingivalis group, the 4NQO + P. gingivalis + celecoxib group, and the 4NQO + P. gingivalis + ABC group were subjected to ligation of the second molar in oral cavity followed by oral P. gingivalis infection thrice weekly for 24 weeks in weeks 11-34. In weeks 13-34, the mice in 4NQO + P. gingivalis+celecoxib group and 4NQO + P. gingivalis + ABC group were administered with celecoxib and ABC for 22 weeks, respectively. At the end of 34 weeks, gross and microscopic alterations were examined followed by RT-qPCR and immunohistochemistry to examine the expression profiles of inflammatory- and tumor-molecules in esophagi of mice. Results:At 34 weeks, 4NQO treatment alone did not affect the foci of papillary hyperproliferation, diseased area, and the thickness of the esophageal wall, but significantly enhanced the foci of hyperproliferation (median 1.00, P<0.05) and mild/moderate dysplasia (median 2.00, P<0.01). In addition, the expression levels of IL-6 [8.35(3.45,8.99)], IL-1β [6.90(2.01,9.72)], TNF-α [12.04(3.31,14.08)], c-myc [2.21(1.80,3.04)], pSTAT3, Ki-67, and pH2AX were higher than those in the control group. The pathological changes of the esophageal mucosa were significantly more overt in the 4NQO + P. gingivalis group in terms of the foci of papillary hyperproliferation (median 2.00), diseased area (median 2.51 mm 2), the thickness of the esophageal wall (median 172.52 μm), the foci of hyperproliferation (median 1.00, P<0.05), and mild/moderate dysplasia (median 1.00, P<0.01). In mice of the 4NQO + P. gingivalis group, the expression levels of IL-6 [12.27(5.35,22.08)], IL-1β [13.89(10.04,15.96)], TNF-α [19.56(6.07,20.36)], IFN-γ [11.37(8.23,20.07)], c-myc [2.62(1.51,4.25)], cyclin D1 [4.52(2.68,7.83)], nuclear pSTAT3, COX-2, Ki-67, and pH2AX were significantly increased compared with the mice in the control group. In mice of the 4NQO + P. gingivalis group, the diseased area, invasive malignant foci as well as pSTAT3 and pH2AX expression were significantly blunted by celecoxib. Treatment with ABC markedly reduced the papillary hyperproliferative foci, invasive malignant foci, and pSTAT3 expression but not pH2AX. Conclusions:P. gingivalis promotes the occurrence of esophageal squamous cell carcinoma in mice by inducing an inflammatory microenvironment primed with 4NQO induced DNA damage. Clearance of P. gingivalis with ABC or anti-inflammatory intervention holds promise for prevention of esophageal squamous cell malignant pathogenesis via blockage of IL-6/STAT3 signaling and amelioration of inflammation.
8.GLUL stabilizes N-Cadherin by antagonizing β-Catenin to inhibit the progresses of gastric cancer.
Qiwei JIANG ; Yong LI ; Songwang CAI ; Xingyuan SHI ; Yang YANG ; Zihao XING ; Zhenjie HE ; Shengte WANG ; Yubin SU ; Meiwan CHEN ; Zhesheng CHEN ; Zhi SHI
Acta Pharmaceutica Sinica B 2024;14(2):698-711
Glutamate-ammonia ligase (GLUL, also known as glutamine synthetase) is a crucial enzyme that catalyzes ammonium and glutamate into glutamine in the ATP-dependent condensation. Although GLUL plays a critical role in multiple cancers, the expression and function of GLUL in gastric cancer remain unclear. In the present study, we have found that the expression level of GLUL was significantly lower in gastric cancer tissues compared with adjacent normal tissues, and correlated with N stage and TNM stage, and low GLUL expression predicted poor survival for gastric cancer patients. Knockdown of GLUL promoted the growth, migration, invasion and metastasis of gastric cancer cells in vitro and in vivo, and vice versa, which was independent of its enzyme activity. Mechanistically, GLUL competed with β-Catenin to bind to N-Cadherin, increased the stability of N-Cadherin and decreased the stability of β-Catenin by alerting their ubiquitination. Furthermore, there were lower N-Cadherin and higher β-Catenin expression levels in gastric cancer tissues compared with adjacent normal tissues. GLUL protein expression was correlated with that of N-Cadherin, and could be the independent prognostic factor in gastric cancer. Our findings reveal that GLUL stabilizes N-Cadherin by antagonizing β-Catenin to inhibit the progress of gastric cancer.
9.Causal relationship between periodontitis and asthma:a two-sample Mendelian randomization study
Qiwei CHEN ; Ting LIU ; Yang CAI
Journal of Prevention and Treatment for Stomatological Diseases 2024;32(8):606-613
Objective To explore the bidirectional causal relationships between periodontitis and asthma using the two-sample Mendelian randomization(MR)method to provide a basis for exploring the etiology and formulating preven-tive and therapeutic measures of periodontitis and asthma.Methods We performed two-sample bidirectional Mende-lian randomization analysis using publicly released European genome-wide association studies(GWAS)statistics for periodontitis(n=34 615)and asthma(n=408 422).The inverse variance weighted(IVW)method was employed as the main approach to estimate the bidirectional causal relationships between periodontitis and asthma.In addition,weighted median(WM),MR-Egger regression,maximum likelihood,and Mendelian randomization robust adjusted profile score(MR-RAPS)were used as supplementary analyses.Sensitivity analyses were conducted using Cochran's Q test,Mende-lian randomization pleiotropy residual sum and outlier(MR-PRESSO),and leave-one-out analysis.Results A total of 12 and 43 single-nucleotide polymorphisms(SNPs)were included as instrumental variables for periodontitis and asthma,respectively.The results of IVW,WM,MR-Egger regression,maximum likelihood,and MR-RAPS showed that periodon-titis was not causally related to the risk of asthma(IVW:OR:1.003,95%CI:0.973-1.035,P=0.828,WM:OR:0.990,95%CI:0.951-1.031,P=0.641;MR-Egger regression:OR:0.988,95%CI:0.960-1.028,P=0.573;maximum likeli-hood:OR:1.003,95%CI:0.972-1.035,P=0.834;MR-RAPS:OR:1.002,95%CI:0.970-1.036,P=0.890)among the European population,and no causal effect of asthma on periodontitis was found(IVW:OR:1.021,95%CI:0.938-1.111,P=0.633,WM:OR:1.011,95%CI:0.894-1.142,P=0.866;MR-Egger regression:OR:1.042,95%CI:0.824-1.319,P=0.731;maximum likelihood:OR:1.021,95%CI:0.938-1.112,P=0.631;MR-RAPS:OR:1.017,95%CI:0.931-1.110,P=0.713)among the European population.Cochran's Q test showed no heterogeneity among the included in-strumental variables,MR-PRESSO test found no horizontal pleiotropy,and the leave-one-out method did not identify out-lier SNPs.Conclusion The results of this study,based on European genetic data,do not support a bidirectional causal association between periodontitis and asthma in the European population.
10.Porphyromonas gingivalis promotes the occurrence of esophageal squamous cell carcinoma via an inflammatory microenvironment
Haijun XU ; Yijun QI ; Dangrou WU ; Qiwei LIU ; Pan CHEN ; Mengxiang LI ; Yelin JIAO ; Haojie RUAN ; Zhitao LI ; Shegan GAO
Chinese Journal of Oncology 2024;46(8):746-754
Objective:To investigate the role of an inflammatory microenvironment induced by Porphyromonasgingivalis ( P. gingivalis) in the occurrence of esophageal squamous cell carcinoma (ESCC) in mice. Methods:A total of 180 C57BL/6 mice were randomly divided into 6 groups, i.e. control group, P. gingivalis group, 4NQO group, 4NQO + P. gingivalis group, 4NQO + P. gingivalis + celecoxib group, and 4NQO + P. gingivalis + antibiotic cocktail (ABC, including metronidazole, neomycin, ampicillin, and vancomycin) group, with 30 mice in each group, using the random number table. All mice were normalized by treatment with ABC in drinking water for 2 weeks. In the following 2 weeks, the mice in the control group and the P. gingivalis group were given drinking water, while the other 4 groups were treated with 30 μg/ml 4NQO in the drinking water. In weeks 11-12, the mice in the P. gingivalis group, the 4NQO + P. gingivalis group, the 4NQO + P. gingivalis + celecoxib group, and the 4NQO + P. gingivalis + ABC group were subjected to ligation of the second molar in oral cavity followed by oral P. gingivalis infection thrice weekly for 24 weeks in weeks 11-34. In weeks 13-34, the mice in 4NQO + P. gingivalis+celecoxib group and 4NQO + P. gingivalis + ABC group were administered with celecoxib and ABC for 22 weeks, respectively. At the end of 34 weeks, gross and microscopic alterations were examined followed by RT-qPCR and immunohistochemistry to examine the expression profiles of inflammatory- and tumor-molecules in esophagi of mice. Results:At 34 weeks, 4NQO treatment alone did not affect the foci of papillary hyperproliferation, diseased area, and the thickness of the esophageal wall, but significantly enhanced the foci of hyperproliferation (median 1.00, P<0.05) and mild/moderate dysplasia (median 2.00, P<0.01). In addition, the expression levels of IL-6 [8.35(3.45,8.99)], IL-1β [6.90(2.01,9.72)], TNF-α [12.04(3.31,14.08)], c-myc [2.21(1.80,3.04)], pSTAT3, Ki-67, and pH2AX were higher than those in the control group. The pathological changes of the esophageal mucosa were significantly more overt in the 4NQO + P. gingivalis group in terms of the foci of papillary hyperproliferation (median 2.00), diseased area (median 2.51 mm 2), the thickness of the esophageal wall (median 172.52 μm), the foci of hyperproliferation (median 1.00, P<0.05), and mild/moderate dysplasia (median 1.00, P<0.01). In mice of the 4NQO + P. gingivalis group, the expression levels of IL-6 [12.27(5.35,22.08)], IL-1β [13.89(10.04,15.96)], TNF-α [19.56(6.07,20.36)], IFN-γ [11.37(8.23,20.07)], c-myc [2.62(1.51,4.25)], cyclin D1 [4.52(2.68,7.83)], nuclear pSTAT3, COX-2, Ki-67, and pH2AX were significantly increased compared with the mice in the control group. In mice of the 4NQO + P. gingivalis group, the diseased area, invasive malignant foci as well as pSTAT3 and pH2AX expression were significantly blunted by celecoxib. Treatment with ABC markedly reduced the papillary hyperproliferative foci, invasive malignant foci, and pSTAT3 expression but not pH2AX. Conclusions:P. gingivalis promotes the occurrence of esophageal squamous cell carcinoma in mice by inducing an inflammatory microenvironment primed with 4NQO induced DNA damage. Clearance of P. gingivalis with ABC or anti-inflammatory intervention holds promise for prevention of esophageal squamous cell malignant pathogenesis via blockage of IL-6/STAT3 signaling and amelioration of inflammation.


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