1.Application of Onlay bone grafts from mandibular lateral oblique line in implant restoration of bone defects in upper anterior teeth
Shencong XU ; Zifei FANG ; Mingyi JI ; Chengrui XU ; Binhong LI ; Jiayu CAO ; Junfeng XU
Chinese Journal of Tissue Engineering Research 2026;30(4):841-848
BACKGROUND:With the development of oral implantology,implant restoration has gradually become the first choice of restoration after missing teeth,and bone augmentation procedures have led to the expansion of implant indications and the improvement of the success rate of implant restoration.However,the long-term stability of bone height,width and volume after bone augmentation surgery has been one of the clinical difficulties for oral implantologists.OBJECTIVE:To measure and analyze the bone width,height,and volume of different sites in the bone augmentation area at different time points using cone-beam CT and an automatic image alignment program.METHODS:Seventeen patients with severe bone defects in the upper anterior region who underwent Onlay bone block grafting in the external oblique region were recruited from the Department of Stomatology,Zhejiang Tongde Hospital.There were 10 males and 7 females,with a mean age of(45.88±12.47)years.The cone-beam CT scans of the patients' Onlay bone grafts were taken at five time points:preoperatively,immediately postoperatively,6 months postoperatively,immediately post implantation,and 6 months post implantation,and then were statistically analyzed for alveolar bone volume,width,and height in the bone augmentation area,as well as for the difference in the alveolar bone volume of the bone incremental area between patients of different sexes and age.RESULTS AND CONCLUSION:(1)The alveolar bone volume in the bone augmentation area was higher immediately and 6 months after bone grafting than before bone grafting(P<0.05)as well as was higher immediately after bone grafting than 6 months after bone grafting(P<0.05).The alveolar bone height in the bone augmentation area was higher immediately and 6 months after bone grafting than before bone grafting(P<0.05).The horizontal width of the alveolar bone at various sites in the bone augmentation area immediately and 6 months after bone grafting was higher than that before bone grafting(P<0.05).(2)There was no significant difference in the volume of bone graft resorption at various sites in the bone augmentation area between males and females immediately and 6 months after bone grafting(P>0.05).Pearson correlation analysis showed a positive correlation between age and the change in bone augmentation area volume immediately and 6 months after bone grafting,but the difference was not statistically significant(P>0.05).(3)Twenty-five dental implants with completed implant restorations functioned normally,and the survival rate of the implants was 100%.To conclude,Onlay bone graft implant restoration in the upper anterior region can significantly improve insufficient bone with favorable outcomes.However,there is some amount of bone resorption in the bone augmentation area at 6 months after Onlay bone grafting and it is necessary to open up the second surgical area.Clinicians should consider different bone augmentation procedures in accordance with the specific circumstances.
2.Application of Onlay bone grafts from mandibular lateral oblique line in implant restoration of bone defects in upper anterior teeth
Shencong XU ; Zifei FANG ; Mingyi JI ; Chengrui XU ; Binhong LI ; Jiayu CAO ; Junfeng XU
Chinese Journal of Tissue Engineering Research 2026;30(4):841-848
BACKGROUND:With the development of oral implantology,implant restoration has gradually become the first choice of restoration after missing teeth,and bone augmentation procedures have led to the expansion of implant indications and the improvement of the success rate of implant restoration.However,the long-term stability of bone height,width and volume after bone augmentation surgery has been one of the clinical difficulties for oral implantologists.OBJECTIVE:To measure and analyze the bone width,height,and volume of different sites in the bone augmentation area at different time points using cone-beam CT and an automatic image alignment program.METHODS:Seventeen patients with severe bone defects in the upper anterior region who underwent Onlay bone block grafting in the external oblique region were recruited from the Department of Stomatology,Zhejiang Tongde Hospital.There were 10 males and 7 females,with a mean age of(45.88±12.47)years.The cone-beam CT scans of the patients' Onlay bone grafts were taken at five time points:preoperatively,immediately postoperatively,6 months postoperatively,immediately post implantation,and 6 months post implantation,and then were statistically analyzed for alveolar bone volume,width,and height in the bone augmentation area,as well as for the difference in the alveolar bone volume of the bone incremental area between patients of different sexes and age.RESULTS AND CONCLUSION:(1)The alveolar bone volume in the bone augmentation area was higher immediately and 6 months after bone grafting than before bone grafting(P<0.05)as well as was higher immediately after bone grafting than 6 months after bone grafting(P<0.05).The alveolar bone height in the bone augmentation area was higher immediately and 6 months after bone grafting than before bone grafting(P<0.05).The horizontal width of the alveolar bone at various sites in the bone augmentation area immediately and 6 months after bone grafting was higher than that before bone grafting(P<0.05).(2)There was no significant difference in the volume of bone graft resorption at various sites in the bone augmentation area between males and females immediately and 6 months after bone grafting(P>0.05).Pearson correlation analysis showed a positive correlation between age and the change in bone augmentation area volume immediately and 6 months after bone grafting,but the difference was not statistically significant(P>0.05).(3)Twenty-five dental implants with completed implant restorations functioned normally,and the survival rate of the implants was 100%.To conclude,Onlay bone graft implant restoration in the upper anterior region can significantly improve insufficient bone with favorable outcomes.However,there is some amount of bone resorption in the bone augmentation area at 6 months after Onlay bone grafting and it is necessary to open up the second surgical area.Clinicians should consider different bone augmentation procedures in accordance with the specific circumstances.
3.Criteria for pancreas donor selection in islet transplantation and the experience of Changzheng hospital
Hanxiang ZHONG ; Junfeng DONG ; Wenyuan GUO ; Shengxian LI ; Hao YIN ; Yuanyu ZHAO ; Junsong JI
Organ Transplantation 2026;17(1):164-169
Diabetes mellitus, characterized by glucose metabolism disorders and marked by insulin deficiency or insulin resistance, has seen a continuous rise in prevalence. In recent years, islet transplantation has matured as a therapeutic approach for diabetes, becoming an important method for glycemic control and the reduction of diabetes-related complications. Donor selection directly influences transplant outcomes, and various research institutions worldwide have proposed multiple scoring systems to optimize donor assessment, such as the University of Alberta scoring system and the North American Islet Donor Score. This article explores the impact of key factors such as donor age, body mass index and ischemia time on islet transplantation. Combining practical experience in pancreatic donor selection from Shanghai Changzheng Hospital, it proposes screening criteria for pancreatic donors suitable for China, aiming to provide new evidence for improving the success rate of islet transplantation.
4.Thrombus Migration After Tenecteplase Versus Alteplase in Acute Large Vessel Occlusion
Lu WANG ; Fuxia YANG ; Xiao WU ; Lulan LI ; Xueqiao JIAO ; Fangfang ZHANG ; Fengyuan CHE ; Hongxing HAN ; Weidong LIU ; Peifu WANG ; Xuesong LI ; Junfeng SHI ; Jia LIU ; Xunming JI ; Xiuhai GUO
Journal of Stroke 2026;28(2):283-292
Background:
and Purpose In patients with large vessel occlusion (LVO), intravenous thrombolysis (IVT) frequently alters thrombus location; however, the clinical impact of this phenomenon remains unclear. We aimed to compare post-IVT thrombus dynamics between tenecteplase and alteplase and to evaluate the association between thrombus dynamics and 3-month outcomes.
Methods:
This retrospective study analyzed prospectively collected, multicenter data from consecutive patients with LVO who underwent bridging therapy between January 2022 and December 2024. Thrombus dynamics were classified as resolution, migration, or stability. Analyses incorporated propensity score matching with weighting to balance baseline characteristics.
Results:
Of the 806 initially included patients, 746 were included after matching (373 treated with tenecteplase and 373 treated with alteplase). The incidence of thrombus migration was significantly higher in the tenecteplase group than in the alteplase group (19.3% vs. 11.3%; odds ratio [OR]: 1.92; 95% confidence interval [CI] 1.27–2.91). The advantage of tenecteplase over alteplase was restricted to patients with an IVT-to-puncture time of <60 minutes (18.6% vs. 6.2%; p=0.001) and was no longer significant when the interval ≥60 minutes (19.7% vs. 15.0%; p=0.204; pinteraction=0.043). Additionally, thrombus migration was associated with a better functional outcome (OR: 1.62; 95% CI 1.04–2.53). Finally, tenecteplase was associated with improved functional independence compared with alteplase (OR: 1.43; 95% CI 1.04–1.95).
Conclusions
Tenecteplase demonstrated superior efficacy in inducing thrombus migration compared with alteplase, particularly within 60 minutes of IVT administration. Thrombus migration independently predicted improved functional independence. These findings support the preferential use of tenecteplase for bridging therapy in patients with LVO.
5.Mechanism by which melatonin promotes bone regeneration and its application in oral implantation
Mingyi JI ; Xinyi JI ; Junfeng XU
Chinese Journal of Tissue Engineering Research 2025;29(18):3868-3876
BACKGROUND:Alveolar bone defects can jeopardize patients'oral and jaw function and physical and mental health,and reduce their quality of life.Melatonin can be used for the prevention and treatment of bone defect diseases due to its properties of promoting bone regeneration,and also has important applications in osseointegration and peri-implant inflammation related to oral implants.OBJECTIVE:To explore the mechanism by which melatonin promotes bone regeneration,the potential application of melatonin in the field of oral implantation,and to provide new ideas for the utilization of melatonin's osteogenic properties in oral implantation.METHODS:With"melatonin,bone defect,osteoblast,osteoclast,reactive oxygen species,periodontitis,osseointegration,peri-implantitis"as Chinese and English search terms,the relevant literature was searched in CNKI and PubMed databases.The timeframe of the search was from January 2019 to August 2024,while a few classical early documents were included.Screening was carried out by reading the titles and abstracts,and 91 papers were finally included for review.RESULTS AND CONCLUSION:(1)Melatonin promotes bone regeneration by promoting the proliferation and differentiation of osteoblasts,chondrocytes and vascular endothelial cells,inhibiting bone resorption and limiting oxidative stress.(2)Melatonin,as a promoter of bone formation,plays a role in promoting osseointegration and preventing peri-implantitis in oral implants.(3)More research is needed in the future to completely reveal the osteogenic mechanisms of melatonin and to make guidelines for optimal administration conditions and safety of melatonin in osseointegration and peri-implantitis.
6.Mechanism by which melatonin promotes bone regeneration and its application in oral implantation
Mingyi JI ; Xinyi JI ; Junfeng XU
Chinese Journal of Tissue Engineering Research 2025;29(18):3868-3876
BACKGROUND:Alveolar bone defects can jeopardize patients'oral and jaw function and physical and mental health,and reduce their quality of life.Melatonin can be used for the prevention and treatment of bone defect diseases due to its properties of promoting bone regeneration,and also has important applications in osseointegration and peri-implant inflammation related to oral implants.OBJECTIVE:To explore the mechanism by which melatonin promotes bone regeneration,the potential application of melatonin in the field of oral implantation,and to provide new ideas for the utilization of melatonin's osteogenic properties in oral implantation.METHODS:With"melatonin,bone defect,osteoblast,osteoclast,reactive oxygen species,periodontitis,osseointegration,peri-implantitis"as Chinese and English search terms,the relevant literature was searched in CNKI and PubMed databases.The timeframe of the search was from January 2019 to August 2024,while a few classical early documents were included.Screening was carried out by reading the titles and abstracts,and 91 papers were finally included for review.RESULTS AND CONCLUSION:(1)Melatonin promotes bone regeneration by promoting the proliferation and differentiation of osteoblasts,chondrocytes and vascular endothelial cells,inhibiting bone resorption and limiting oxidative stress.(2)Melatonin,as a promoter of bone formation,plays a role in promoting osseointegration and preventing peri-implantitis in oral implants.(3)More research is needed in the future to completely reveal the osteogenic mechanisms of melatonin and to make guidelines for optimal administration conditions and safety of melatonin in osseointegration and peri-implantitis.
7.Trends in incidence and mortality of lung cancer in Huangpu District from 2002 to 2019
QIU Fengqian ; ZHAO Junfeng ; CHEN Weihua ; DU Juan ; JI Yunfang ; GAO Shuna ; MENG Jie ; HE Lihua ; CHEN Bo ; ZHANG Yan
Journal of Preventive Medicine 2025;37(2):143-147
Objective:
To investigate the trends in incidence and mortality of lung cancer in Huangpu District, Shanghai Municipality from 2002 to 2019, so as to provide the evidence for formulating lung cancer prevention and control measures.
Methods:
Data of lung cancer incidence and mortality among residents in Huangpu District from 2002 to 2019 were collected through the Shanghai Cancer Registration and Reporting Management System. The crude incidence and mortality of lung cancer was calculated, and standardized by the data from the Chinese Fifth National Population Census in 2000 (Chinese-standardized rate) and the Segi's world standard population in 1960 (world-standardized rate). The trends in incidence and mortality of lung cancer among residents by age and gender were evaluated using annual percent change (APC).
Results:
A total of 12 965 cases of lung cancer were reported in Huangpu District from 2002 to 2019, and the crude incidence rate was 80.66/105, the Chinese-standardized incidence rate was 34.54/105, and the world-standardized incidence rate was 31.30/105, all showing upward trends (APC=4.588%, 2.933% and 3.247%, all P<0.05). A total of 10 102 deaths of lung cancer were reported, and the crude mortality rate was 62.30/105, showing an upward trend (APC=0.959%, P<0.05); the Chinese-standardized mortality was 25.93/105, and the world-standardized mortality was 22.05/105, both showing downward trends (APC=-1.282% and -1.263%, both P<0.05). The crude incidence and mortality rates of lung cancer in males were higher than those in females (101.39/105 vs. 60.52/105, 85.45/105 vs. 39.87/105, both P<0.05). The crude incidence and mortality rates of lung cancer showed upward trends with age (both P<0.05), reaching their peaks in the age groups of 80-<85 years (341.37/105) and 85 years or above (355.97/105), respectively.
Conclusions
The incidence of lung cancer showed an upward trend, while the mortality showed a downward trend in Huangpu District from 2002 to 2019. Elderly men were the high-risk group for lung cancer incidence and mortality.
8.Analysis of pulmonary infection of Pseudomonas aeruginosa combined with Elizabethkingia anophelis
Xiaojuan YIN ; Lili TAI ; Junfeng XIAO ; Bo JI
Journal of Pharmaceutical Practice and Service 2024;42(5):223-226
Objective To investigate the risk factors of infection of Pseudomonas aeruginosa combined with Elizabethkingia anophelis in patients with cerebral hemorrhage and the antimicrobial treatment plan.Methods Clinical pharmacists participated in the treatment of pulmonary infection caused by Pseudomonas aeruginosa combined with Elizabethkingia anophelis in a patient with cerebral hemorrhage.The risk factors of Elizabethkingia anophelis infection and antimicrobial treatment plan were analyzed by referring to literature and combining the patient's condition,medical history,drug use history and related examination results.Results Based on the infection site,the characteristics of mixed bacterial infection,and the metabolic/pharmacodynamic characteristics of antimicrobial agents,clinical pharmacists made drug recommendations for clinicians in the adjustment of anti-infection protocols,and patients'systemic infections were effectively controlled.Conclusion Elizabethkingia anophelis is a conditional pathogen with low virulence and is not easy to infect healthy people.When the patient's immunity is low,it is easy to transform into pathogenic bacteria,which should be paid attention to.
9.Construction and application of the module of medical first-aid at the door of the space capsule and the air evacuation after the manned spaceflight lands
Liping DING ; Yong JI ; Jing LI ; Xiaopei GAO ; Tao WANG ; Peiming SUN ; Xiaoming LIU ; Junfeng GAO ; Xiaoyong SONG
Chinese Journal of Emergency Medicine 2023;32(5):627-631
Objective:To explore the module of the construction and application of medical first-aid at the door of the space capsule and the air evacuation.Methods:According to the purpose, principle, and method set by the module, it was divided into two sub-modules: medical first-aid at the door of the space capsule and the air evacuation. During the comprehensive first-aid training, independent training and combined training were carried out respectively according to different mission stages of launch and recovery and different recovery terrain. Meanwhile, research was performed to ensure that medical carrying equipment was lightweight, modular, and portable, and the efficiency of modularization construction was tested in the comprehensive training.Results:The module of medical first-aid at the door of the space capsule and the air evacuation obviously shortened the rescuing time during the comprehensive training, the saving effect was remarkable, and the overall saving efficiency was significantly improved.Conclusions:The module of medical first-aid at the door of the space capsule and the air evacuation meet the requirements that the emergency support system of aerospace medicine should function on an immediate basis, ensuring accurate treatment and air evacuation without any delay, so that to achieve the aim of aerospace medicare.
10.Management of primary adrenal lymphoma with intracranial invasion
Ye JI ; Xinjuan ZHUANG ; Junfeng HAN ; Jian ZHOU ; Yuqian BAO
Chinese Journal of Endocrinology and Metabolism 2023;39(1):55-59
Primary adrenal lymphoma (PAL) is a rare extranodular lymphoma. It is subject to misdiagnosis due to atypical clinical and imaging features. Histopathology is required to establish the diagnosis. Patients often present to the Endocrinology Department upon revelation of adrenal incidentalomas by imaging. PAL is often accompanied by invasion of other tissues and organs, with a high mortality rate and a poor prognosis. In this paper, the clinical features of a patient with primary adrenal lymphoma and intracranial invasion were summarized, and the pathogenesis, clinical manifestations, diagnosis and treatment of this disease were reviewed.


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