1.Study on Quantitative Evaluation Method of Balance Ability in Cancer Patients Based on Gait Features.
Junjie LIU ; Xu ZHOU ; Chao YU ; Qingqing CAO ; Zhiming YAO ; Wanqiu ZHANG ; Ling ZHANG ; Wanqing YAO ; Ning LIN
Chinese Journal of Medical Instrumentation 2025;49(4):369-374
The importance of gait assessment in the rehabilitation of cancer patients is gradually being recognized. However, quantitative analysis of balance ability in cancer patients is still limited. A total of 102 cancer patients meeting the inclusion criteria were recruited from Hefei Cancer Hospital, Chinese Academy of Sciences. Their balance ability was evaluated using the Berg Balance Scale (BBS). Gait data were collected by an electronic walkway and an IMU sensor system, including spatial-temporal and kinematic gait features such as step length, cadence, support time, and range of motion. Recursive feature elimination was used for feature selection. Ridge, Elastic Net, SVR, RF, and AdaBoost models were used to predict balance ability scores. Five-fold cross-validation was used to evaluate the performance of these models. Results show that the SVR model achieves the best performance with fifteen features (RMSE=3.22, R 2=0.91), followed by Ridge (RMSE=3.63, R 2=0.89). A method for evaluating balance ability based on gait features is proposed, providing a quantitative tool for personalized rehabilitation interventions in cancer patients.
Humans
;
Postural Balance
;
Neoplasms/rehabilitation*
;
Gait
;
Gait Analysis
;
Biomechanical Phenomena
;
Female
2.Progress in the application of deep learning in the auxiliary diagnosis and prognostic evaluation of left ventricular hypertrophy
Hongyang XU ; Peng QIU ; Hui CAO ; Junzhong ZHANG ; Zhiming MA
Chinese Journal of Clinical Thoracic and Cardiovascular Surgery 2025;32(10):1495-1503
As an intermediate phenotype for multiple cardiovascular diseases, left ventricular hypertrophy (LVH) benefits from early diagnosis, which allows for timely intervention to prevent worsening of the condition, mitigate severe complications like heart failure and arrhythmias, and consequently improve patient outcomes. Preliminary advances have been made using deep learning for the early diagnosis and identification of etiology in LVH. This paper reviews the pathophysiology, causes, and diagnostic standards for LVH, discusses the strengths and weaknesses of applying deep learning to diagnostic tools such as echocardiography, cardiac magnetic resonance imaging, and electrocardiogram, examines its use in prognostic evaluation, and concludes by summarizing current achievements and suggesting future research avenues.
3.Study of the changes of intestinal microbiota in mice by whole‐abdominal ultra‐high dose rate irradiation
Jun ZHANG ; Zhiming XU ; Xinyang CHENG ; Siqian ZHANG ; Qiliang PENG ; Yongsheng ZHANG ; Zhifei CAO
Chinese Journal of Radiation Oncology 2025;34(8):811-818
Objective:To investigate the effects of different doses of whole abdominal ultra‐high dose rate (FLASH) irradiation on the intestinal microbiota of mice.Methods:A total of 25 healthy male C57BL/6J mice were randomly divided into the control ( n=5) and FLASH irradiation groups ( n=20) by simple randomization method, and the FLASH irradiation group was further divided into different radiation dose subgroups of 10, 15, 20, 25 Gy, 5 in each group. The mice were irradiated with a single whole abdomen at a dose rate of 100 Gy/s, then sacrificed 3.5 d after irradiation. Fresh fecal specimens and intestinal tissues of mice were collected for 16S rRNA sequencing, microbiota analysis, hematoxylin eosin (HE) staining and injury severity score analysis. Two-group comparison was performed by independent sample t-test. Multi-group comparison was conducted by one-way ANOVA. Results:HE staining revealed that the whole abdomen FLASH irradiation caused varying degree of intestinal injury in mice, and the intestinal injury reaction was aggravated with the increase of irradiation dose. β‐diversity analyses showed that there were differences in the composition of intestinal microbiota between FLASH irradiation group and control group ( P=0.001), but the differences in the relative abundance of the species between the irradiation groups at different doses were relatively small, and there were their own dominant genera of bacteria. Comparison of different doses of FLASH irradiation groups with control group screened out 16 species of bacteria with shared differences at the genus level, in which Lactobacillus, Ligilactobacillus and unclassified Lactobacillus were more abundant in the control group, while Escherichia, Allobaculum, and Muribaculum were more abundant in the FLASH irradiation groups. Conclusions:The whole‐abdominal FLASH irradiation induces intestinal damage in mice, and the intestinal damage response is worsened with the increase of irradiation dose. Different doses of whole abdominal FLASH irradiation alter the intestinal microbiota composition of mice. Sixteen species of common intestinal differential microbiota at the genus level are screened out in the different doses of FLASH irradiation groups compared with the control group, which may serve as a marker for measuring intestinal injury in mice irradiated with whole‐abdominal FLASH.
4.Research progress on the role and mechanism of ferroptosis in renal cell carcinoma
Jixin YUAN ; Zhiming WANG ; Zhifei CAO ; Yongsheng ZHANG
Chinese Journal of Clinical and Experimental Pathology 2025;41(5):639-643
Renal cell carcinoma(RCC)is the most common type of malignant kidney tumors,originating from re-nal tubular epithelial cells.The primary treatment options for RCC include surgery and targeted therapy.Despite the notable advancements in RCC research,significant challenges persist,including the high risk of metastasis and recur-rence post-surgery,as well as the low sensitivity to radiotherapy and chemotherapy.Ferroptosis,a form of regulated cell death first identified in 2012,has garnered significant attention due to its involvement in several cellular processes,including redox balance,iron metabolism,and various signaling pathways related to cancer progression.Given its po-tential to be modulated,ferroptosis offers significant promise for the treatment of cancers,ischemic organ damage,and other degenerative diseases associated with lipid peroxidation.This review discusses recent developments in ferroptosis research,with a particular focus on its role in RCC,and explores future research directions in this area.
5.Research progress on the role and mechanism of ferroptosis in renal cell carcinoma
Jixin YUAN ; Zhiming WANG ; Zhifei CAO ; Yongsheng ZHANG
Chinese Journal of Clinical and Experimental Pathology 2025;41(5):639-643
Renal cell carcinoma(RCC)is the most common type of malignant kidney tumors,originating from re-nal tubular epithelial cells.The primary treatment options for RCC include surgery and targeted therapy.Despite the notable advancements in RCC research,significant challenges persist,including the high risk of metastasis and recur-rence post-surgery,as well as the low sensitivity to radiotherapy and chemotherapy.Ferroptosis,a form of regulated cell death first identified in 2012,has garnered significant attention due to its involvement in several cellular processes,including redox balance,iron metabolism,and various signaling pathways related to cancer progression.Given its po-tential to be modulated,ferroptosis offers significant promise for the treatment of cancers,ischemic organ damage,and other degenerative diseases associated with lipid peroxidation.This review discusses recent developments in ferroptosis research,with a particular focus on its role in RCC,and explores future research directions in this area.
6.Study of the changes of intestinal microbiota in mice by whole‐abdominal ultra‐high dose rate irradiation
Jun ZHANG ; Zhiming XU ; Xinyang CHENG ; Siqian ZHANG ; Qiliang PENG ; Yongsheng ZHANG ; Zhifei CAO
Chinese Journal of Radiation Oncology 2025;34(8):811-818
Objective:To investigate the effects of different doses of whole abdominal ultra‐high dose rate (FLASH) irradiation on the intestinal microbiota of mice.Methods:A total of 25 healthy male C57BL/6J mice were randomly divided into the control ( n=5) and FLASH irradiation groups ( n=20) by simple randomization method, and the FLASH irradiation group was further divided into different radiation dose subgroups of 10, 15, 20, 25 Gy, 5 in each group. The mice were irradiated with a single whole abdomen at a dose rate of 100 Gy/s, then sacrificed 3.5 d after irradiation. Fresh fecal specimens and intestinal tissues of mice were collected for 16S rRNA sequencing, microbiota analysis, hematoxylin eosin (HE) staining and injury severity score analysis. Two-group comparison was performed by independent sample t-test. Multi-group comparison was conducted by one-way ANOVA. Results:HE staining revealed that the whole abdomen FLASH irradiation caused varying degree of intestinal injury in mice, and the intestinal injury reaction was aggravated with the increase of irradiation dose. β‐diversity analyses showed that there were differences in the composition of intestinal microbiota between FLASH irradiation group and control group ( P=0.001), but the differences in the relative abundance of the species between the irradiation groups at different doses were relatively small, and there were their own dominant genera of bacteria. Comparison of different doses of FLASH irradiation groups with control group screened out 16 species of bacteria with shared differences at the genus level, in which Lactobacillus, Ligilactobacillus and unclassified Lactobacillus were more abundant in the control group, while Escherichia, Allobaculum, and Muribaculum were more abundant in the FLASH irradiation groups. Conclusions:The whole‐abdominal FLASH irradiation induces intestinal damage in mice, and the intestinal damage response is worsened with the increase of irradiation dose. Different doses of whole abdominal FLASH irradiation alter the intestinal microbiota composition of mice. Sixteen species of common intestinal differential microbiota at the genus level are screened out in the different doses of FLASH irradiation groups compared with the control group, which may serve as a marker for measuring intestinal injury in mice irradiated with whole‐abdominal FLASH.
8.Effectiveness and safety of autologous fat particle transplantation in facial rejuvenation: a meta analysis
Zhiming CAO ; Lilin FANG ; Junyi ZHANG ; Xiaoen ZHANG ; Guohui WU ; Qingni TU
Chinese Journal of Medical Aesthetics and Cosmetology 2024;30(6):598-602
Objective:To explore the effectiveness and safety of autologous fat granule transplantation for facial rejuvenation.Methods:Databases including PubMed, Cochrane Library, Google Scholar, Web of Science, China Biology Medicine Database, Wanfang Database, and CNKI were searched. The search time range was from 2013 to 2023. Search key words included autologous fat transplantation, facial rejuvenation, efficacy, effectiveness, safety, complications, etc. Meta-analysis was used. Literature search was conducted by using tool method and forward search method. OR (95% CI) was used as the statistical measure for efficacy analysis. Heterogeneity of literature was tested by I2 test. Publication bias was tested by Begg′ s test. Results:A total of 23 literatures were included, covering 2 852 beauty seekers. There was no significant publication bias. The satisfactory rate of beauty seekers after autologous granular fat transplantation was relatively high ( OR=0.95, 95% CI: 0.91-0.97). The success rate of one-time injection was relatively high ( OR=0.79, 95% CI: 0.73-0.84). The incidence of postoperative complications was relatively low ( OR=0.02, 95% CI: 0.01-0.04). Conclusion:Autologous fat granule transplantation surgery has good effectiveness and safety for facial rejuvenation.
9.Value of modified ROX index in predicting the outcome of patients with acute respiratory distress syndrome due to SARS-CoV-2 infection treated with high-flow nasal cannula oxygen therapy
Xueting WANG ; Zhiming ZHANG ; Wen CAO
Chinese Critical Care Medicine 2024;36(6):585-590
Objective:To investigate the value of the modified ROX (mROX) index in predicting the outcome of patients with acute respiratory distress syndrome (ARDS) due to SARS-CoV-2 infection treated with high-flow nasal cannula oxygen therapy (HFNC).Methods:A retrospective observational study was conducted, including 57 patients with ARDS caused by SARS-CoV-2 infection who required HFNC treatment in the intensive care unit (ICU) of the Lanzhou University Second Hospital from December 2022 to June 2023. The patients were divided into HFNC failure group and HFNC success group according to whether they were successfully weaned from HFNC. Laboratory tests, acute physiology and chronic health evaluationⅡ(APACHEⅡ), and sequential organ failure assessment (SOFA) in the first 24 hours of ICU admission were recorded in both groups, vital signs and arterial blood gas analysis immediately and after 6 hours of HFNC treatment, treatment regimen, length of ICU stay, and total length of hospital stay were recorded in both groups, and patients' outcomes at 28 days and 90 days were followed up by telephone. Univariate analysis was used to analyze the above indexes, and the significant indexes were included in the binary multivariate Logistic regression analysis to analyze the influencing factors of HFNC failure in patients. Kaplan-Meier survival curves were plotted to analyze the 28-day and 90-day outcomes of patients in both groups. Receiver operator characteristic curve (ROC curve) was plotted to analyze the value of treatment 6-hour mROX index and 6-hour ROX index in predicting the success of HFNC.Results:A total of 57 patients with ARDS due to SARS-CoV-2 infection were enrolled, including 34 patients in the HFNC success group and 23 patients in the HFNC failure group. Procalcitonin (PCT), C-reactive protein (CRP), interleukin-6 (IL-6), lactic acid (Lac) and the proportion of vasopressors, the proportion of continuous renal replacement therapy (CRRT), the APACHEⅡscore and the SOFA score, the respiratory rate (RR) immediately and 6 hours after treatment were significantly higher in the HFNC failure group compared with the HFNC success group. The length of ICU stay was significantly longer, and oxygenation index (PaO 2/FiO 2) at the time of treatment, and pulse oxygen saturation (SpO 2), arterial partial pressure of oxygen (PaO 2), ROX index, and mROX index at the time of treatment and at 6 hours after treatment were significantly lower in the HFNC failure group compared with the HFNC success group (all P < 0.05). Kaplan-Meier survival curves showed that the 28-day cumulative survival rates (100% vs. 26.1%) and 90-day cumulative survival rates (85.3% vs. 21.7%) of patients in the HFNC success group were significantly higher than those in the HFNC failure group (both P < 0.001). On binary multivariate Logistic regression analysis, Lac [odds ratio ( OR) = 0.129, 95% confidence interval (95% CI) was 0.020-0.824], SOFA score ( OR = 0.382, 95% CI was 0.158-0.925), 6-hour ROX index ( OR = 0.099, 95% CI was 0.011-0.920), and 6-hour mROX index ( OR = 23.703, 95% CI was 1.415-396.947) were associated with HFNC treatment outcome (all P < 0.05). ROC curve analysis showed that the area under the ROC curve (AUC) of the 6-hour mROX index and the 6-hour ROX index for predicting the success of HFNC were both higher (0.809 and 0.714, respectively), and the AUC of 6-hour mROX index was significantly higher than that of 6-hour ROX index ( P < 0.01), and the sensitivity was 88.2% and the specificity was 52.2% when the cut-off value of 6-hour mROX index was 4.5. Conclusion:The predictive value of the 6-hour mROX index in the treatment of patients with ARDS caused by SARS-CoV-2 infection is higher than that of the 6-hour ROX index, and the 6-hour mROX index is greater than 4.5, which is more likely to predict the success of HFNC treatment.
10.Improvement on Quality Standard of Yuanhu Zhitong Oral Liquid
Lu FU ; Chengyu CHEN ; Jin GAO ; Dan WU ; Chun LI ; Zhiming CAO ; Jianli GUAN ; Ping WANG ; Haiyu XU
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(9):125-131
ObjectiveTo improve the quality standard of Yuanhu Zhitong oral liquid in order to strengthen the quality control of this oral liquid. MethodThin layer chromatography(TLC) was used for the qualitative identification of Corydalis Rhizoma and Angelicae Dahuricae Radix in Yuanhu Zhitong oral liquid by taking tetrahydropalmatine, corydaline reference substances and Corydalis Rhizoma reference medicinal materials as reference, and cyclohexane-trichloromethane-methanol(5∶3∶0.5) as developing solvent, Corydalis Rhizoma was identified using GF254 glass thin layer plate under ultraviolet light(365 nm). And taking petroleum ether(60-90 ℃) -ether-formic acid(10∶10∶1) as developing solvent, Angelicae Dahuricae Radix was identified using a silica gel G TLC plate under ultraviolet light(305 nm). High performance liquid chromatography(HPLC) was performed on a Waters XSelect HSS T3 column(4.6 mm×250 mm, 5 μm) with acetonitrile(A)-0.1% glacial acetic acid solution(adjusted pH to 6.1 by triethylamine)(B) as the mobile phase for gradient elution(0-10 min, 20%-30%A; 10-25 min, 30%-40%A; 25-40 min, 40%-50%A; 40-60 min, 50%-60%A), the detection wavelength was set at 280 nm, then the fingerprint of Yuanhu Zhitong oral liquid was established, and the contents of tetrahydropalmatine and corydaline were determined. ResultIn the thin layer chromatograms, the corresponding spots of Yuanhu Zhitong oral liquid, the reference substances and reference medicinal materials were clear, with good separation and strong specificity. A total of 12 common peaks were identified in 10 batches of Yuanhu Zhitong oral liquid samples, and the peaks of berberine hydrochloride, dehydrocorydaline, glaucine, tetrahydropalmatine and corydaline. The similarities between the 10 batches of samples and the control fingerprint were all >0.90. The results of determination showed that the concentrations of corydaline and tetrahydropalmatine had good linearity with paek area in the range of 0.038 6-0.193 0, 0.034 0-0.170 0 g·L-1, respectively. The methodological investigation was qualified, and the contents of corydaline and tetrahydropalmatine in 10 batches of Yuanhu Zhitong oral liquid samples were 0.077 5-0.142 9、0.126 1-0.178 2 g·L-1, respectively. ConclusionThe established TLC, fingerprint and determination are simple, specific and reproducible, which can be used to improve the quality control standard of Yuanhu Zhitong oral liquid.

Result Analysis
Print
Save
E-mail