1.Comparison of Therapeutic Effect of Different Preparation Processes of Baihe Dihuangtang on Depressed Mice Based on Q-Marker
Yan LIU ; Jiameng LIU ; Jiahui PENG ; Dan LI ; Shengjun MA ; Jingfan YANG ; Yu FU ; Guangwei ZHU
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(17):159-167
ObjectiveBased on modern analytical techniques and a depressed mouse model established by chronic unpredictable mild stress(CUMS), to evaluate the quality marker(Q-Marker) and pharmacodynamic difference of Baihe Dihuangtang prepared by different processes. MethodsHigh performance liquid chromatography(HPLC) was used to establish the characteristic profiles of Baihe Dihuangtang, and determine the content of Q-Marker in the samples prepared by ancient and modern processes. Seventy C57BL/6J mice were randomly divided into the normal group, model group, fluoxetine group(3 mg·kg-1), low and high dose groups of ancient process(6.5, 26 g·kg-1), and low and high dose groups of modern process(6.5, 26 g·kg-1), with 10 mice in each group. Except for the normal group, CUMS was used to induce depression in mice from the other groups for 28 d. After successful modeling, administration groups were given the corresponding drugs by gavage every day, and the normal and model groups were given an equal volume of pure water by gavage for 21 consecutive days. Change in body mass of mice was recorded, tail suspension test and open field test were used to evaluate the depressive behavior of mice, and enzyme-linked immunosorbent assay(ELISA) was employed to determine the contents of tumor necrosis factor-α(TNF-α), interleukin(IL)-1β and IL-6 in serum. ResultsCharacteristic profiles of Baihe Dihuangtang prepared by the two processes were established, the similarity between the two was 0.951, and 8 characteristic peaks were recognized with the reference peak of regaloside A. The results of quantitative analysis showed that the Q-Marker content was similar in Baihe Dihuangtang prepared by ancient and modern processes. The results of pharmacodynamics showed that, compared with the normal group, the model group showed increased immobility time in the tail suspension test, reduced total movement distance in the open field test, and elevated IL-1β, IL-6 and TNF-α levels in the serum(P<0.01). Compared with the model group, the behavioral indicators of mice in the Baihe Dihuangtang treatment group were significantly improved in terms of tail suspension time and open field exercise, and the levels of IL-1β, IL-6 and TNF-α in serum were significantly reduced(P<0.05, P<0.01). Baihe Dihuangtang prepared by the two processes both had antidepressant effects, and the difference between the two was not statistically significant in improving depressive symptoms. ConclusionQ-Marker of Baihe Dihuangtang prepared by modern and ancient methods are equivalent in content, and the pharmacological effects are consistent, indicating that dried Lilii Bulbus can replace fresh products in the preparation of Baihe Dihuangtang. This study provides a scientific basis for the development of new drugs of Baihe Dihuangtang and a reference for its rational application and clinical use.
2.Comparison of Therapeutic Effect of Different Preparation Processes of Baihe Dihuangtang on Depressed Mice Based on Q-Marker
Yan LIU ; Jiameng LIU ; Jiahui PENG ; Dan LI ; Shengjun MA ; Jingfan YANG ; Yu FU ; Guangwei ZHU
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(17):159-167
ObjectiveBased on modern analytical techniques and a depressed mouse model established by chronic unpredictable mild stress(CUMS), to evaluate the quality marker(Q-Marker) and pharmacodynamic difference of Baihe Dihuangtang prepared by different processes. MethodsHigh performance liquid chromatography(HPLC) was used to establish the characteristic profiles of Baihe Dihuangtang, and determine the content of Q-Marker in the samples prepared by ancient and modern processes. Seventy C57BL/6J mice were randomly divided into the normal group, model group, fluoxetine group(3 mg·kg-1), low and high dose groups of ancient process(6.5, 26 g·kg-1), and low and high dose groups of modern process(6.5, 26 g·kg-1), with 10 mice in each group. Except for the normal group, CUMS was used to induce depression in mice from the other groups for 28 d. After successful modeling, administration groups were given the corresponding drugs by gavage every day, and the normal and model groups were given an equal volume of pure water by gavage for 21 consecutive days. Change in body mass of mice was recorded, tail suspension test and open field test were used to evaluate the depressive behavior of mice, and enzyme-linked immunosorbent assay(ELISA) was employed to determine the contents of tumor necrosis factor-α(TNF-α), interleukin(IL)-1β and IL-6 in serum. ResultsCharacteristic profiles of Baihe Dihuangtang prepared by the two processes were established, the similarity between the two was 0.951, and 8 characteristic peaks were recognized with the reference peak of regaloside A. The results of quantitative analysis showed that the Q-Marker content was similar in Baihe Dihuangtang prepared by ancient and modern processes. The results of pharmacodynamics showed that, compared with the normal group, the model group showed increased immobility time in the tail suspension test, reduced total movement distance in the open field test, and elevated IL-1β, IL-6 and TNF-α levels in the serum(P<0.01). Compared with the model group, the behavioral indicators of mice in the Baihe Dihuangtang treatment group were significantly improved in terms of tail suspension time and open field exercise, and the levels of IL-1β, IL-6 and TNF-α in serum were significantly reduced(P<0.05, P<0.01). Baihe Dihuangtang prepared by the two processes both had antidepressant effects, and the difference between the two was not statistically significant in improving depressive symptoms. ConclusionQ-Marker of Baihe Dihuangtang prepared by modern and ancient methods are equivalent in content, and the pharmacological effects are consistent, indicating that dried Lilii Bulbus can replace fresh products in the preparation of Baihe Dihuangtang. This study provides a scientific basis for the development of new drugs of Baihe Dihuangtang and a reference for its rational application and clinical use.
3.Diagnostic Techniques and Risk Prediction for Cardiovascular-kidney-metabolic (CKM) Syndrome
Song HOU ; Lin-Shan ZHANG ; Xiu-Qin HONG ; Chi ZHANG ; Ying LIU ; Cai-Li ZHANG ; Yan ZHU ; Hai-Jun LIN ; Fu ZHANG ; Yu-Xiang YANG
Progress in Biochemistry and Biophysics 2025;52(10):2585-2601
Cardiovascular disease (CVD), chronic kidney disease (CKD), and metabolic disorders are the 3 major chronic diseases threatening human health, which are closely related and often coexist, significantly increasing the difficulty of disease management. In response, the American Heart Association (AHA) proposed a novel disease concept of “cardiovascular-kidney-metabolic (CKM) syndrome” in October 2023, which has triggered widespread concern about the co-treatment of heart and kidney diseases and the prevention and treatment of metabolic disorders around the world. This review posits that effectively managing CKM syndrome requires a new and multidimensional paradigm for diagnosis and risk prediction that integrates biological insights, advanced technology and social determinants of health (SDoH). We argue that the core pathological driver is a “metabolic toxic environment”, fueled by adipose tissue dysfunction and characterized by a vicious cycle of systemic inflammation and oxidative stress, which forms a common pathway to multi-organ injury. The at-risk population is defined not only by biological characteristics but also significantly impacted by adverse SDoH, which can elevate the risk of advanced CKM by a factor of 1.18 to 3.50, underscoring the critical need for equity in screening and care strategies. This review systematically charts the progression of diagnostic technologies. In diagnostics, we highlight a crucial shift from single-marker assessments to comprehensive multi-marker panels. The synergistic application of traditional biomarkers like NT-proBNP (reflecting cardiac stress) and UACR (indicating kidney damage) with emerging indicators such as systemic immune-inflammation index (SII) and Klotho protein facilitates a holistic evaluation of multi-organ health. Furthermore, this paper explores the pivotal role of non-invasive monitoring technologies in detecting subclinical disease. Techniques like multi-wavelength photoplethysmography (PPG) and impedance cardiography (ICG) provide a real-time window into microcirculatory and hemodynamic status, enabling the identification of early, often asymptomatic, functional abnormalities that precede overt organ failure. In imaging, progress is marked by a move towards precise, quantitative evaluation, exemplified by artificial intelligence-powered quantitative computed tomography (AI-QCT). By integrating AI-QCT with clinical risk factors, the predictive accuracy for cardiovascular events within 6 months significantly improves, with the area under the curve (AUC) increasing from 0.637 to 0.688, demonstrating its potential for reclassifying risk in CKM stage 3. In the domain of risk prediction, we trace the evolution from traditional statistical tools to next-generation models. The new PREVENT equation represents a major advancement by incorporating key kidney function markers (eGFR, UACR), which can enhance the detection rate of CKD in primary care by 20%-30%. However, we contend that the future lies in dynamic, machine learning-based models. Algorithms such as XGBoost have achieved an AUC of 0.82 for predicting 365-day cardiovascular events, while deep learning models like KFDeep have demonstrated exceptional performance in predicting kidney failure risk with an AUC of 0.946. Unlike static calculators, these AI-driven tools can process complex, multimodal data and continuously update risk profiles, paving the way for truly personalized and proactive medicine. In conclusion, this review advocates for a paradigm shift toward a holistic and technologically advanced framework for CKM management. Future efforts must focus on the deep integration of multimodal data, the development of novel AI-driven biomarkers, the implementation of refined SDoH-informed interventions, and the promotion of interdisciplinary collaboration to construct an efficient, equitable, and effective system for CKM screening and intervention.
4.Bone loss in patients with spinal cord injury: Incidence and influencing factors.
Min JIANG ; Jun-Wei ZHANG ; He-Hu TANG ; Yu-Fei MENG ; Zhen-Rong ZHANG ; Fang-Yong WANG ; Jin-Zhu BAI ; Shu-Jia LIU ; Zhen LYU ; Shi-Zheng CHEN ; Jie-Sheng LIU ; Jia-Xin FU
Chinese Journal of Traumatology 2025;28(6):477-484
PURPOSE:
To investigate the incidence and influencing factors of bone loss in patients with spinal cord injury (SCI).
METHODS:
A retrospective case-control study was conducted. Patients with SCI in our hospital from January 2019 to March 2023 were collected. According to the correlation between bone mineral density (BMD) at different sites, the patients were divided into the lumbar spine group and the hip joint group. According to the BMD value, the patients were divided into the normal bone mass group (t > -1.0 standard deviation) and the osteopenia group (t ≤ -1.0 standard deviation). The influencing factors accumulated as follows: gender, age, height, weight, cause of injury, injury segment, injury degree, time after injury, start time of rehabilitation, motor score, sensory score, spasticity, serum value of alkaline phosphatase, calcium, and phosphorus. The trend chart was drawn and the influencing factors were analyzed. SPSS 26.0 was used for statistical analysis. Correlation analysis was used to test the correlation between the BMD values of the lumbar spine and bilateral hips. Binary logistic regression analysis was used to explore the influencing factors of osteoporosis after SCI. p < 0.05 was considered statistically significant.
RESULTS:
The incidence of bone loss in patients with SCI was 66.3%. There was a low concordance between bone loss in the lumbar spine and the hip, and the hip was particularly susceptible to bone loss after SCI, with an upward trend in incidence (36% - 82%). In this study, patients with SCI were divided into the lumbar spine group (n = 100) and the hip group (n = 185) according to the BMD values of different sites. Then, the lumbar spine group was divided into the normal bone mass group (n = 53) and the osteopenia group (n = 47); the hip joint group was divided into the normal bone mass group (n = 83) and the osteopenia group (n = 102). Of these, lumbar bone loss after SCI is correlated with gender and weight (p = 0.032 and < 0.001, respectively), and hip bone loss is correlated with gender, height, weight, and time since injury (p < 0.001, p = 0.015, 0.009, and 0.012, respectively).
CONCLUSIONS
The incidence of bone loss after SCI was high, especially in the hip. The incidence and influencing factors of bone loss in the lumbar spine and hip were different. Patients with SCI who are male, low height, lightweight, and long time after injury were more likely to have bone loss.
Humans
;
Spinal Cord Injuries/complications*
;
Male
;
Female
;
Retrospective Studies
;
Incidence
;
Adult
;
Bone Density
;
Middle Aged
;
Case-Control Studies
;
Osteoporosis/etiology*
;
Lumbar Vertebrae
;
Bone Diseases, Metabolic/etiology*
;
Aged
;
Risk Factors
5.The Enhancing Effects and Underlying Mechanism of Ionizing Radiation on Adipogenic Differentiation of Mesenchymal Stem Cells via Regulating Oxidative Stress Pathway.
Fu-Hao YU ; Bo-Feng YIN ; Pei-Lin LI ; Xiao-Tong LI ; Jia-Yi TIAN ; Run-Xiang XU ; Jie TANG ; Xiao-Yu ZHANG ; Wen-Jing ZHANG ; Heng ZHU ; Li DING
Journal of Experimental Hematology 2025;33(1):246-254
OBJECTIVE:
To investigate the effects and underlying mechanism of ionizing radiation on the adipogenic of mesenchymal stem cells (MSCs).
METHODS:
Mouse MSCs were cultured in vitro and treated with 2 Gy and 6 Gy radiation with 60Co, and the radiation dose rate was 0.98 Gy/min. Bulk RNA-seq was performed on control and irradiated MSCs. The changes of adipogenic differentiation and oxidative stress pathways of MSC were revealed by bioinformatics analysis. Oil Red O staining was used to detect the adipogenic differentiation ability of MSCs in vitro, and real-time fluorescence quantitative PCR (qPCR) was used to detect the expression differences of key regulatory factors Cebpa, Lpl and Pparg after radiation treatment. At the same time, qPCR and Western blot were used to detect the effect of inhibition of Nrf2, a key factor of antioxidant stress pathway, on the expression of key regulatory factors of adipogenesis. Moreover, the species conservation of the irradiation response of human bone marrow MSCs and mouse MSC was determined by qPCR.
RESULTS:
Bulk RNA-seq suggested that ionizing radiation promotes adipogenic differentiation of MSCs and up-regulation of oxidative stress-related genes and pathways. The results of Oil Red O staining and qPCR showed that ionizing radiation promoted the adipogenesis of MSCs, with high expression of Cebpa, Lpl and Pparg, as well as oxidative stress-related gene Nrf2. Nrf2 pathway inhibitors could further enhance the adipogenesis of MSCs in bone marrow after radiation. Notably, the similar regulation of oxidative pathways and enhanced adipogenesis post irradiation were observed in human bone marrow MSCs. In addition, irradiation exposure led to up-regulated mRNA expression of interleukin-6 and down-regulated mRNA expression of colony stimulating factor 2 in human bone marrow MSCs.
CONCLUSION
Ionizing radiation promotes adipogenesis of MSCs in mice, and oxidative stress pathway participates in this effect, blocking Nrf2 further promotes the adipogenesis of MSCs. Additionally, irradiation activates oxidative pathways and promotes adipogenic differentiation of human bone marrow MSCs.
Mesenchymal Stem Cells/cytology*
;
Oxidative Stress/radiation effects*
;
Animals
;
Adipogenesis/radiation effects*
;
Mice
;
Radiation, Ionizing
;
Cell Differentiation/radiation effects*
;
Humans
;
NF-E2-Related Factor 2/metabolism*
;
PPAR gamma
;
Cells, Cultured
6.Establishment and Application of an in Vitro Cellular Model of Adipogenic Differentiation of Bone Marrow Mesenchymal Stem Cells with Serum Injury in aGVHD Mouse.
Run-Xiang XU ; Pei-Lin LI ; Jia-Yi TIAN ; Jie TANG ; Bo-Feng YIN ; Fu-Hao YU ; Fei-Yan WANG ; Xiao-Tong LI ; Xiao-Yu ZHANG ; Wen-Rong XIA ; Heng ZHU ; Li DING
Journal of Experimental Hematology 2025;33(1):255-261
OBJECTIVE:
To establish an in vitro cell model simulating acute graft-versus-host disease (aGVHD) bone marrow microenvironment injury with the advantage of mouse serum of aGVHD model and explore the effect of serum of aGVHD mouse on the adipogenic differentiation ability of mesenchymal stem cells (MSCs).
METHODS:
The 6-8-week-old C57BL/6N female mice and BALB/c female mice were used as the donor and recipient mice of the aGVHD model, respectively. Bone marrow transplantation (BMT) mouse model (n=20) was established by being injected with bone marrow cells (1×107 per mouse) from donor mice within 4-6 hours after receiving a lethal dose (8.0 Gy, 72.76 cGy/min) of γ ray general irradiation. A mouse model of aGVHD (n=20) was established by infusing a total of 0.4 ml of a mixture of donor mouse-derived bone marrow cells (1×107 per mouse) and spleen lymphocytes (2×106 per mouse). The blood was removed from the eyeballs and the mouse serum was aspirated on the 7th day after modeling. Bone marrow-derived MSCs were isolated from 1-week-old C57BL/6N male mice and incubated with 2%, 5% and 10% BMT mouse serum and aGVHD mouse serum in the medium, respectively. The effect of serum in the two groups on the in vitro adipogenic differentiation ability of mouse MSCs was detected by Oil Red O staining. The expression levels of related proteins PPARγ and CEBPα were detected by Western blot. The expression differences of key adipogenic transcription factors including PPARγ, CEBPα, FABP4 and LPL were determined by real-time quantitative PCR (RT-qPCR).
RESULTS:
An in vitro cell model simulating the damage of bone marrow microenvironment in mice with aGVHD was successfully established. Oil Red O staining showed that the number of orange-red fatty droplets was significantly reduced and the adipogenic differentiation ability of MSC was impaired at aGVHD serum concentration of 10% compared with BMT serum. Western blot experiments showed that adipogenesis-related proteins PPARγ and CEBPα expressed in MSCs were down-regulated. Further RT-qPCR assay showed that the production of PPARγ, CEBPα, FABP4 and LPL, the key transcription factors for adipogenic differentiation of MSC, were significantly reduced.
CONCLUSION
The adipogenic differentiation capacity of MSCs is inhibited by aGVHD mouse serum.
Animals
;
Mesenchymal Stem Cells/cytology*
;
Mice
;
Mice, Inbred BALB C
;
Mice, Inbred C57BL
;
Adipogenesis
;
Female
;
Cell Differentiation
;
Graft vs Host Disease/blood*
;
Bone Marrow Cells/cytology*
;
PPAR gamma/metabolism*
;
Disease Models, Animal
;
CCAAT-Enhancer-Binding Protein-alpha/metabolism*
7.Preparation and Evaluation of Clinical-Grade Human Umbilical Cord-Derived Mesenchymal Stem Cells with High Expression of Hematopoietic Supporting Factors.
Jie TANG ; Pei-Lin LI ; Xiao-Yu ZHANG ; Xiao-Tong LI ; Fu-Hao YU ; Jia-Yi TIAN ; Run-Xiang XU ; Bo-Feng YIN ; Li DING ; Heng ZHU
Journal of Experimental Hematology 2025;33(3):892-898
OBJECTIVE:
To prepare clinical-grade human umbilical cord-derived mesenchymal stem cells (hUC-MSC) with high expression of hematopoietic supporting factors and evaluate their stem cell characteristics.
METHODS:
Fetal umbilical cord tissues were collected from healthy postpartum women during full-term cesarean section. Wharton's jelly was mechanically separated and hUC-MSCs were obtained by explant culture method and enzyme digestion method in an animal serum-free culture system with addition of human platelet lysate. The phenotypic characteristics of hUC-MSCs obtained by two methods were detected by flow cytometry. The differences in proliferation ability between the two groups of hUC-MSCs were identified through CCK-8 assay and colony forming unit-fibroblast (CFU-F) assay. The differences in multilineage differentiation potential between the two groups of hUC-MSCs were identified through induction of adipogenic, osteogenic, and chondrogenic differentiation. The mRNA expression levels of hematopoietic supporting factors such as SCF, IL-3, CXCL12, VCAM1 and ANGPT1 in the two groups of hUC-MSCs were identified by real-time fluorescence quantiative PCR(RT-qPCR).
RESULTS:
The results of flow cytometry showed that hUC-MSCs obtained by the two methods both expressed high levels of CD73, CD90 and CD105, while lowly expressed CD31, CD45 and HLA-DR. The results of CCK-8 and CFU-F assay showed that the proliferation ability of hUC-MSCs obtained by explant culture method was better than those obtained by enzyme digestion method. The results of the triple lineage differentiation experiment showed that there was no significant difference in multilineage differentiation potential between the two grous of hUC-MSCs. The results of RT-qPCR showed that the mRNA expression levels of hematopoietic supporting factors SCF, IL-3, CXCL12, VCAM1 and ANGPT1 in hUC-MSCs obtained by explant cultrue method were higher than those obtained by enzyme digestion method.
CONCLUSION
Clinical-grade hUC-MSCs with high expression levels of hematopoietic supporting factors were successfully cultured in an animal serum-free culture system.
Humans
;
Mesenchymal Stem Cells/metabolism*
;
Umbilical Cord/cytology*
;
Cell Differentiation
;
Female
;
Cell Proliferation
;
Cells, Cultured
;
Chemokine CXCL12/metabolism*
;
Angiopoietin-1/metabolism*
;
Vascular Cell Adhesion Molecule-1/metabolism*
;
Stem Cell Factor/metabolism*
;
Flow Cytometry
;
Pregnancy
8.Analysis of transurethral water vapor thermal therapy for the treatment of benign prostatic hyperplasia.
Ming-Yang PANG ; Yong WEI ; Jian-Zhong LIN ; Jun WANG ; Ming-Yu LIU ; Fu-Yang LIU ; Yi-Bo MA ; Tong ZHAO ; Qing-Yi ZHU
National Journal of Andrology 2025;31(7):603-607
OBJECTIVE:
To investigate the efficacy and safety of transurethral water vapor thermal therapy (WVTT) using the Rezūm system for benign prostatic hyperplasia (BPH) in the real world.
METHODS:
A total of 181 patients with BPH were recruited from the Second Affiliated Hospital of Nanjing Medical University from August 2022 to December 2023, of whom 173 patients were treated with WVTT using the Rezūm system, while 8 patients were treated with WVTT combined with TURP. They were followed up at 1, 3, and 6 months postoperatively to assess changes in the IPSS, QoL, Qmax, IIEF-5, and the occurrence of any complications. Results: All 181 surgeries in this group were successfully completed. The operation time of the Rezūm system was (4.6 ± 1.4) minutes. The postoperative indwelling catheterization time was (8.0 ± 2.1) days. With a follow-up of at least 6 months, there was a significant decrease in PV, IPSS and QoL, and a remarkable increase had been found in Qmax as well (P<0.05). There was no significant difference in IIEF-5 before and after the operation (P>0.05). In this groups of patients, postoperative complications mainly included 95 cases (52.5%) of gross hematuria, 6 cases (3.3%) of retrograde ejaculation, 5 cases (2.8%) of urethral stricture, 4 cases (2.2%) of prostatitis, and 10 cases (5.5%) of urinary tract infection. Four cases (2.2%) underwent surgical retreatment for BPH after surgery.
CONCLUSION
In the real world, the use of Rezūm thermal steam ablation system for the treatment of BPH has satisfactory short-term effect, short surgical time, and significant improvement in IPSS, QoL, Qmax, which does not adversely affect sexual function.
Humans
;
Male
;
Prostatic Hyperplasia/therapy*
;
Transurethral Resection of Prostate
;
Steam
;
Treatment Outcome
;
Quality of Life
;
Aged
;
Middle Aged
9.A preclinical evaluation and first-in-man case for transcatheter edge-to-edge mitral valve repair using PulveClip® transcatheter repair device.
Gang-Jun ZONG ; Jie-Wen DENG ; Ke-Yu CHEN ; Hua WANG ; Fei-Fei DONG ; Xing-Hua SHAN ; Jia-Feng WANG ; Ni ZHU ; Fei LUO ; Peng-Fei DAI ; Zhi-Fu GUO ; Yong-Wen QIN ; Yuan BAI
Journal of Geriatric Cardiology 2025;22(2):265-269
10.Clinical implication of post-angioplasty quantitative flow ratio in the patients with coronary artery de novo lesions underwent drug-coated balloons treatment.
Yun-Hui ZHU ; Xu-Lin HONG ; Tian-Li HU ; Qian-Qian BIAN ; Yu-Fei CHEN ; Tian-Ping ZHOU ; Jing LI ; Guo-Sheng FU ; Wen-Bin ZHANG
Journal of Geriatric Cardiology 2025;22(3):332-343
BACKGROUND:
Quantitative flow ratio (QFR) holds significant value in guiding drug-coated balloon (DCB) treatment and enhancing outcomes. However, the predictive capability of post-angioplasty QFR for long-term clinical events in patients with de novo lesions who receive DCB treatment remains uncertain. The aim of this study was to explore the potential significance of post-angioplasty QFR measurements in predicting clinical outcomes in patients underwent DCB treatment for de novo lesions.
METHODS:
Patients who underwent DCB-only intervention for de novo lesions were enrolled. QFR was conducted after DCB treatment. The patients were then categorized based on post-angioplasty QFR. The primary endpoint was major adverse cardiac events (MACE), encompassing all-cause death, cardiovascular death, nonfatal myocardial infarction, stroke, and target vessel revascularization.
RESULTS:
A total of 553 patients with 561 lesions were included. The median follow-up period was 505 days, during which 66 (11.8%) MACEs occurred. Based on post-procedural QFR grouping, there were 259 cases in the high QFR group (QFR > 0.93) and 302 cases in the low QFR group (QFR ≤ 0.93). Kaplan-Meier analysis revealed a significantly higher cumulative incidence of MACE in the low QFR group (log-rank P = 0.004). The multivariate Cox proportional hazards model demonstrated a significant inverse correlation between QFR and the occurrence of MACEs (HR = 0.522, 95%CI: 0.289-0.942, P = 0.031). Landmark analysis indicated that high QFR had a significant reducing effect on the cumulative incidence of MACEs within 1 year (log-rank P = 0.016) and 1-5 years (log-rank P = 0.026).
CONCLUSIONS
In patients who underwent DCB-only treatment for de novo lesions, higher post-procedural QFR values (> 0.93) were identified as an independent protective factor against adverse prognosis.

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