1.Assessing the bone mass of the residual alveolar ridge in the first molar for implant placement by cone-beam computed tomography
Yaohao CAI ; Lyu LANG ; Hong LI
Chinese Journal of Tissue Engineering Research 2025;29(8):1572-1577
BACKGROUND:With the development and progress in the field of stomatology,oral implant technology has gradually become the mainstream alternative to traditional dentures.In recent years,the maturity of various bone increment techniques and the continuous development of the oral digital field have expanded the indications of dental implantation,and the success rate of implantation surgery is also increasing.However,it has become a difficult problem for some clinicians to use cone-beam computed tomography(CBCT)to accurately measure the residual alveolar ridge bone mass before implantation and to make a suitable implantation plan. OBJECTIVE:To measure the residual alveolar ridge bone mass in the proposed implant area of the mandibular first molar using the CBCT. METHODS:In a retrospective study design,the CBCT images of 205 patients with mandibular first molar loss were included to measure the height and width of the residual alveolar ridge in the proposed implant area of the mandibular first molar.The residual alveolar ridges were divided into four categories:Ⅰ,Ⅱ,Ⅲ and Ⅳ(Class Ⅱ,Ⅲ,and Ⅳ residual alveolar ridge defined as insufficient bone).Statistical analyses were conducted in terms of frequency distribution of residual alveolar ridge height,width,and morphology of the mandibular first molar,differences in residual alveolar ridge height and alveolar ridge crest width of the mandibular first molar in patients of different sexes,correlation of the residual alveolar ridge height with the crest width and bottom width of the residual alveolar ridge,as well as correlation of age with the width and height of the residual alveolar ridge crest. RESULTS AND CONCLUSION:(1)The average height of the residual alveolar ridge in the proposed implant area of the mandibular first molar was(12.14±2.96)mm,of which 43.41%(89/205)were less than 12 mm.The average width of the residual alveolar ridge in the proposed implant area of the mandibular first molar was(6.80±1.65)mm,of which 26.34%(54/205)were less than 6 mm.(2)The height of the residual alveolar ridge of the mandibular first molar was higher in males than in females,with no significant difference(P>0.05),and the width of the residual alveolar ridge of the mandibular first molar was significantly wider in males than in females(P<0.01).(3)The height of the residual alveolar ridge was negatively correlated with the top and bottom width of the residual alveolar ridge(P<0.01).Age showed a positive correlation with the residual alveolar ridge width(P<0.05)and no significant correlation with the residual alveolar ridge height(P>0.05).(4)The residual alveolar ridge of class Ⅰ accounted for 58.05%(119/205),class Ⅱ accounted for 9.27%(19/205),class Ⅲ accounted for 20.49%(42/205),and class Ⅳ accounted for 12.19%(25/205),most of which were class Ⅲ with insufficient remaining alveolar ridge bone mass.Clinicians need to individualize and design the optimal implantation plan based on the type of residual alveolar ridge.
2.Effect of Qingxin Jieyu Granules on Artery Thrombosis and Akt/NF-κB Signaling Pathway in EA.hy926 Cells Exposed to TNF-α
Chenchen HE ; Chenyi WEI ; Zhenghao LYU ; Qiaoyan CAI ; Zhuye GAO ; Ling ZHANG ; Jianfeng CHU
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(3):89-97
ObjectiveTo observe the effects of Qingxin Jieyu granules (QXJYG) on FeCl3-induced carotid artery thrombosis in rats and on the expression of thrombosis-related proteins tissue factor (TF) and tissue factor pathway inhibitor (TFPI) as well as the protein kinase B (Akt)/nuclear factor-κB (NF-κB) signaling pathway in EA.hy926 cells exposed to tumor necrosis factor-α (TNF-α), thus preliminarily exploring the mechanism of QXJYG in inhibiting thrombosis. MethodsThirty-six SD rats were randomized into normal control, model, positive control (aspirin, 9 mg·kg-1), and low-, medium-, and high-dose (0.99, 1.98, 3.96 g·kg-1, respectively) QXJYG groups (n=6). The rats in the drug treatment groups were administrated with corresponding drugs, and those in the normal control group and model group were given an equal volume of distilled water. After 14 consecutive days of prophylactic gavage, the rat model of common carotid artery thrombosis was established with 45% FeCl3 solution, and the blood vessels were collected and the wet weight of thrombus was weighed by an electronic balance (precision of 1/10 000). The thrombosis in the common carotid artery of each group of rats was observed by hematoxylin-eosin staining. The plasma levels of von Willebrand factor (vWF), platelet endothelial cell adhesion molecule-1 (PECAM-1), tissue-type plasminogen activator (t-PA), and plasminogen activator inhibitor-1 (PAI-1) were determined by enzyme-linked immunosorbent assay. An endothelial cell injury model was established by treating EA.hy926 human umbilical vein endothelial cells with TNF-α. The cell counting kit-8 method was used to screen the intervention concentrations of QXJYG. Western blot was employed to determine the protein levels of TF, TFPI, Akt, p-Akt, NF-κB p65, and p-NF-κB p65 in each group of cells. ResultsThe animal experiment showed that compared with the normal control group, the model group showed an increase in carotid artery thrombus weight (P<0.05), with unclear vascular structure and extensive thrombosis in the lumen. In addition, the plasma levels of vWF, PECAM-1, and PAI-1 were elevated, while the t-PA level became lowered (P<0.05) in the model group. Compared with the model group, the aspirin and QXJYG groups showed reductions in the weight of FeCl3-induced carotid artery thrombi (P<0.05) and thrombosis in the lumen, declines in plasma levels of PECAM-1 and PAI-1, and an elevation in the t-PA level (P<0.05). Moreover, the QXJYG groups showed reductions in the plasma level of vWF (P<0.05), which, however, had no significant difference between the aspirin group and the model group. The cell experiments indicated that 31.25, 62.5, 125, 250, 500 mg·L-1 QXJYG had no effect on the viability of EA.hy926 cells. Therefore, 250, 500 mg·L-1 QXJYG were selected as the intervention concentrations for subsequent experiments. Western blotting results showed that compared with the control group, the TNF-α stimulation downregulated the expression of TFPI (P<0.05), upregulated the expression of TF, and increased the ratios of p-Akt/Akt and p-NF-κB p65/NF-κB p65 (P<0.05) in EA.hy926 cells. Compared with the model group, the intervention with QXJYG upregulated the expression of TFPI (P<0.05), inhibited the expression of TF, and decreased the ratios of p-Akt/Akt and p-NF-κB p65/NF-κB p65 (P<0.05). ConclusionQXJYG has the effect of inhibiting thrombosis and regulating the expression of TF and TFPI in endothelial cells exposed to TNF-α by suppressing the abnormal activation of the Akt/NF-κB signaling pathway.
3.Comparison of the clinical efficacy of super pulse thulium laser enucleation of the prostate with "open tunnel" and holmium laser enucleation of the prostate for benign prostatic hyperplasia
Jidong XU ; Ning JIANG ; Jian LI ; Zhikang CAI ; Jianwei LYU ; Chuanyi HU ; Jingcun ZHENG ; Zhonglin CAI ; Huiying CHEN ; Yan GU ; Yuning WANG ; Jiasheng YAN ; Zhong WANG
Journal of Modern Urology 2025;30(1):34-38
[Objective] To compare the clinical efficacy of super pulse thulium laser enucleation of the prostate (SPThuLEP) with "open tunnel" and transurethral holmium laser enucleation of the prostate (HoLEP) in the treatment of benign prostatic hyperplasia (BPH), in order to provide reference for the treatment options of BPH. [Methods] The clinical data of 112 BPH patients treated in our hospital during Jan.2023 and Jul.2023 were retrospectively analyzed, including 65 treated with SPThuLEP with "open tunnel" and 57 with HoLEP.The operation time, postoperative hemoglobin decrease, postoperative bladder irrigation, catheter indwelling time, hospitalization time and complications were compared between the two groups.The changes of maximum urine flow rate (Qmax), international prostate symptom score (IPSS), quality of life score (QoL), postvoid residual (PVR) and prostate-specific antigen (PSA) were compared between the two groups before operation and one month after operation. [Results] All operations were successful without conversion to open or transurethral plasmakinetic resection.The postoperative decrease of hemoglobin in SPThuLEP group was lower than that in HoLEP group [(13.12±6.72) g/L vs. (21.02±6.51) g/L], with statistical difference (P<0.05). There were no significant differences in the operation time [(63.35±15.73) min vs.(61.02±17.55) min], postoperative bladder irrigation time [(1.07±0.45) d vs. (1.06±0.36) d], catheter indwelling time [(2.98±0.56) d vs. (3.01±0.63) d] and hospitalization time [(3.63±0.61) d vs.(3.79±0.76) d] between the two groups (P>0.05). No blood transfusion, secondary bleeding or unplanned hospitalization occurred, and there were no serious complications such as transurethral electroresection syndrome (TURS), urethral stricture and urinary incontinence.One month after operation, the Qmax, IPSS, QoL, PVR and PSA of the two groups were significantly improved compared with those before operation (P<0.05), but with no statistical difference between the two groups (P>0.05). [Conclusion] SPThuLEP with "open tunnel" has comparable efficacy as HoLEP in the treatment of BPH.With advantages of small amount of bleeding and high safety, this minimally invasive technique can be widely popularized in clinical practice.
4.Molecular Characteristics of Prognosis and Chemotherapy Response in Breast Cancer: Biomarker Identification Based on Gene Mutations and Pathway
Liyan LI ; Hongwei LYU ; Qian CHEN ; Yating BAI ; Jing YU ; Ruigang CAI
Journal of Breast Cancer 2025;28(2):61-71
Purpose:
This study aimed to investigate the molecular characteristics associated with better prognosis in breast cancer.
Methods:
We performed targeted sequencing of 962 genes in 56 samples, categorizing them into long-term and short-term survival groups as well as chemotherapy-sensitive and chemotherapy-resistant groups for further analyses.
Results:
The results indicated that the tumor mutational burden values were significantly higher in the short-term survival and chemotherapy-resistant groups (p = 0.008 and p = 0.003, respectively). Somatic mutation analysis revealed that the mutation frequencies of BCL9L and WHSC1 were significantly lower in the long-term survival group than those in the short-term survival group (p = 0.029 and p = 0.024, respectively). CREB-regulated transcription coactivator 1 (CRTC1) mutations occurred significantly more frequently in the chemotherapy-resistant group (p = 0.027) and were associated with shorter progression-free survival (p = 0.036).Signature weighting analysis showed a significant increase in Signature.3, which is associated with homologous recombination repair deficiency in the chemotherapy-sensitive group (p = 0.045). Conversely, signatures related to effective DNA repair mechanisms, Signature.1 and Signature.15, were significantly reduced (p = 0.002 and p < 0.001, respectively). Kyoto Encyclopedia of Genes and Genomes pathway analysis indicated that gene mutations were significantly enriched in the JAK-STAT signaling pathway.
Conclusion
This study, through intergroup comparative analysis, found that immunotherapy (using programmed death 1/programmed death-ligand 1 inhibitors) may improve the prognosis of patients with short survival and chemotherapy resistance. Additionally, the study revealed that mutations in BCL9L and WHSC1 could serve as biomarkers for breast cancer prognosis, while CRTC1 mutations and Signature.3 could predict chemotherapy response. The study also found that the JAK-STAT pathway might be a potential therapeutic target for chemotherapy resistance. Therefore, this study identifies molecular characteristics that influence the prognosis of breast cancer patients, providing important theoretical insights for the development of personalized treatment strategies.
5.Organizational Readiness for Change and Factors Influencing the Implementation of Shared Medical Appointment for Diabetes in Primary Healthcare Institutions
Wei YANG ; Yiyuan CAI ; Jiajia CHEN ; Run MAO ; Lang LINGHU ; Sensen LYU ; Dong XU
Medical Journal of Peking Union Medical College Hospital 2025;16(2):479-491
The success of implementation research is closely tied to the institution's pre-implementation readiness. This study aims to explore the organizational readiness for change (ORC) and its influencing factors on primary healthcare settings in the implementation of the "Shared Medical Appointment for Diabetes (SMART) in China: design of an optimization trial" and to enhance ORC and provide insights to support the effective implementation of the program. Qualitative interviews and quantitative surveys were conducted to evaluate the ORC level and its influencing factors in 12 institutions implementing the SMART program. The Scale for Assessing the Institution's Readiness to Implement Evidence-Based Practices was utilized to measure ORC levels. Qualitative interviews were conducted among change implementers to gather information regarding the status of influencing factors. Thematic analysis was applied to extract factors from the interview data, and an assessment questionnaire was developed to measure the perceived impact of these factors. A fuzzy-set qualitative comparative analysis (fsQCA) method was employed to identify the influencing factors of ORC and pathways leading to high-level ORC. Seventy implementers from 12 institutions, encompassing administrators, clinicians, and health managers, participated in the interviews and surveys. The median and interquartile of the ORC scores were 105.20 (101.23, 107.33). The fsQCA indicated that a clear understanding of specific tasks and responsibilities, the active engagement of key participants, sufficient preliminary preparation, and the use of audits and feedback mechanisms were critical pathways to a high-level ORC. Conversely, institutions lacking key participants, preliminary preparation, or marginal influence demonstrated a low-level ORC. Before implementing innovation, Coherence and Cognitive Participation were identified as critical factors in influencing ORC. Strong leadership from key participants played pivotal role in enhancing readiness for change and was essential for improving implementation fidelity and overall program success.
6.Molecular Characteristics of Prognosis and Chemotherapy Response in Breast Cancer: Biomarker Identification Based on Gene Mutations and Pathway
Liyan LI ; Hongwei LYU ; Qian CHEN ; Yating BAI ; Jing YU ; Ruigang CAI
Journal of Breast Cancer 2025;28(2):61-71
Purpose:
This study aimed to investigate the molecular characteristics associated with better prognosis in breast cancer.
Methods:
We performed targeted sequencing of 962 genes in 56 samples, categorizing them into long-term and short-term survival groups as well as chemotherapy-sensitive and chemotherapy-resistant groups for further analyses.
Results:
The results indicated that the tumor mutational burden values were significantly higher in the short-term survival and chemotherapy-resistant groups (p = 0.008 and p = 0.003, respectively). Somatic mutation analysis revealed that the mutation frequencies of BCL9L and WHSC1 were significantly lower in the long-term survival group than those in the short-term survival group (p = 0.029 and p = 0.024, respectively). CREB-regulated transcription coactivator 1 (CRTC1) mutations occurred significantly more frequently in the chemotherapy-resistant group (p = 0.027) and were associated with shorter progression-free survival (p = 0.036).Signature weighting analysis showed a significant increase in Signature.3, which is associated with homologous recombination repair deficiency in the chemotherapy-sensitive group (p = 0.045). Conversely, signatures related to effective DNA repair mechanisms, Signature.1 and Signature.15, were significantly reduced (p = 0.002 and p < 0.001, respectively). Kyoto Encyclopedia of Genes and Genomes pathway analysis indicated that gene mutations were significantly enriched in the JAK-STAT signaling pathway.
Conclusion
This study, through intergroup comparative analysis, found that immunotherapy (using programmed death 1/programmed death-ligand 1 inhibitors) may improve the prognosis of patients with short survival and chemotherapy resistance. Additionally, the study revealed that mutations in BCL9L and WHSC1 could serve as biomarkers for breast cancer prognosis, while CRTC1 mutations and Signature.3 could predict chemotherapy response. The study also found that the JAK-STAT pathway might be a potential therapeutic target for chemotherapy resistance. Therefore, this study identifies molecular characteristics that influence the prognosis of breast cancer patients, providing important theoretical insights for the development of personalized treatment strategies.
7.Molecular Characteristics of Prognosis and Chemotherapy Response in Breast Cancer: Biomarker Identification Based on Gene Mutations and Pathway
Liyan LI ; Hongwei LYU ; Qian CHEN ; Yating BAI ; Jing YU ; Ruigang CAI
Journal of Breast Cancer 2025;28(2):61-71
Purpose:
This study aimed to investigate the molecular characteristics associated with better prognosis in breast cancer.
Methods:
We performed targeted sequencing of 962 genes in 56 samples, categorizing them into long-term and short-term survival groups as well as chemotherapy-sensitive and chemotherapy-resistant groups for further analyses.
Results:
The results indicated that the tumor mutational burden values were significantly higher in the short-term survival and chemotherapy-resistant groups (p = 0.008 and p = 0.003, respectively). Somatic mutation analysis revealed that the mutation frequencies of BCL9L and WHSC1 were significantly lower in the long-term survival group than those in the short-term survival group (p = 0.029 and p = 0.024, respectively). CREB-regulated transcription coactivator 1 (CRTC1) mutations occurred significantly more frequently in the chemotherapy-resistant group (p = 0.027) and were associated with shorter progression-free survival (p = 0.036).Signature weighting analysis showed a significant increase in Signature.3, which is associated with homologous recombination repair deficiency in the chemotherapy-sensitive group (p = 0.045). Conversely, signatures related to effective DNA repair mechanisms, Signature.1 and Signature.15, were significantly reduced (p = 0.002 and p < 0.001, respectively). Kyoto Encyclopedia of Genes and Genomes pathway analysis indicated that gene mutations were significantly enriched in the JAK-STAT signaling pathway.
Conclusion
This study, through intergroup comparative analysis, found that immunotherapy (using programmed death 1/programmed death-ligand 1 inhibitors) may improve the prognosis of patients with short survival and chemotherapy resistance. Additionally, the study revealed that mutations in BCL9L and WHSC1 could serve as biomarkers for breast cancer prognosis, while CRTC1 mutations and Signature.3 could predict chemotherapy response. The study also found that the JAK-STAT pathway might be a potential therapeutic target for chemotherapy resistance. Therefore, this study identifies molecular characteristics that influence the prognosis of breast cancer patients, providing important theoretical insights for the development of personalized treatment strategies.
8.Efficacy of pudendal nerve modulation in the treatment of female pudendal neuralgia
Ziqin ZHOU ; Xin SONG ; Yinjun GU ; Tingting LYU ; Weilin FANG ; Jin HUANG ; Jianwei LYU ; Zhikang CAI ; Zhong WANG
Journal of Modern Urology 2025;30(5):395-399
Objective: To investigate the clinical efficacy and safety of pudendal nerve modulation (PNM) in the treatment of female pudendal neuralgia (PN),so as to promote the clinical application of this technique. Methods: A retrospective analysis was conducted on 20 female PN patients who failed conservative treatment at Gongli Hospital during Nov.2020 and Oct.2023.All patients underwent simultaneous PNM and sacral nerve modulation (SNM) with the assistance of 3D printing navigation.Dual-stage test electrodes for PNM and SNM were implanted,followed by alternate therapeutic trial for each modality.Secondary conversion rates and longitudinal outcomes,including visual analogue score (VAS),patient health questionnaire-9 (PHQ-9),and quality of life (QoL) scores were compared preoperatively,post-stage Ⅰ,and at 3,6,and 12 months post-stage Ⅱ. Results: All operations were successful.After the trial phase,the secondary conversion rate for PNM was significantly higher than that for SNM; 16 patients (16/20,80%) chose the second-phase PNM implantation surgery,3 (3/20,15%) chose second-phase SNM implantation,and 1 (1/20,5%) had electrodes removed due to ineffective results from both trials.Further assessment revealed that the improvements in VAS,PHQ-9,and QoL scores for PNM patients were significantly better than those for SNM patients after the first phase of surgery and at 3,6 and 12 months after the second-phase conversion (P<0.05).No complications such as electrode migration or infection were observed during the follow-up of 12-15 months. Conclusion: PNM provides more effective relief of pain symptoms and improvements in depressive states for female PN patients compared to SNM.With the assistance of 3D printing navigation,the operation is simple and safe,and offers stable therapeutic effects.It is worthy of clinical promotion and application.
9.Integrating Internet Search Data and Surveillance Data to Construct Influenza Epidemic Thresholds in Hubei Province: A Moving Epidemic Method Approach.
Cai Xia DANG ; Feng LIU ; Heng Liang LYU ; Zi Qian ZHAO ; Si Jin ZHU ; Yang WANG ; Yuan Yong XU ; Ye Qing TONG ; Hui CHEN
Biomedical and Environmental Sciences 2025;38(9):1150-1154
10.In Vitro Hydrodynamic Performance Evaluation of Valve Repair System
Liang CAI ; Yibin LI ; Shiwen LYU
Chinese Journal of Medical Instrumentation 2024;48(6):603-606
Objective To meet the treatment requirements for mitral regurgitation disease,this study designed a novel valve repair system and evaluated its hydrodynamic performance.Methods A mitral regurgitation model was created.The valve repair system was loaded onto the regurgitation model,and pulsatile flow tests and steady backflow leakage tests were conducted.Results The pulsatile flow test results indicated that the percentage of reflux after product implantation was lower than that before implantation under different concentric outputs and reverse pressures.The average cross-valve pressure difference after implantation was less than 5 mmHg.The steady backflow leakage test results showed that as the reverse pressure increased,the leakage amount of the valve repair system after implantation also increased.Conclusion The developed valve repair system exhibits excellent hydrodynamic performance,suggesting the feasibility of its application in the treatment of clinical mitral regurgitation.

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