1.Clinical Validation Study of Deep Learning-Generated Magnetic Resonance Images
Guangdong FU ; Lifeng PENG ; Zhihao ZHANG ; Lei XIANG ; Long WANG ; Jian HE
Chinese Journal of Medical Instrumentation 2024;48(5):493-497
This research utilizes a deep learning-based image generation algorithm to generate pseudo-sagittal STIR sequences from sagittal T1WI and T2WI MR images.The evaluations include both subjective assessments by two physicians and objective analyses,measuring image quality through SNR and CNR in ROIs of five different tissues.Further analyses,including MAE,PSNR,SSIM,and COR,establish a strong correlation between the generated STIR sequences and the gold standard,with Bland-Altman analysis indicating pixel consistency.The findings indicate that the deep learning-generated STIR sequences not only align with but potentially surpass the gold standard in terms of image quality and clinical diagnostic capabilities.Moreover,the approach demonstrates promise for clinical implementation,offering reduced scan time and enhanced imaging efficiency.
2.Pharmacoeconomic evaluation of fluticasone furoate/umeclidinium/vilanterol powder for inhalation for the treatment of chronic obstructive pulmonary disease
Xueru DING ; Huimin LIU ; Xiaodong HE ; Hua LI ; Zhihao LI
Chinese Journal of Pharmacoepidemiology 2024;33(7):721-730
Objective To evaluate the economic value of fluticasone furoate/umeclidinium/vilanterol(FF/UMEC/VI)powder for inhalation in the treatment of symptomatic chronic obstructive pulmonary disease patients with acute exacerbation risk from the perspective of the Chinese health system.Methods Based on subgroup analysis of the China cohort in the IMPACT trial,a four-state lifetime Markov model was established with a 3-month cycle.The model simulation period was 11 years.Clinical efficacy,health benefits,and cost data were obtained through published literature.The health outcomes included quality adjusted life year(QALY).Using 3 times Chinas per capita gross domestic product(GDP)in 2023 as the willingness-to-pay threshold,the cost-utility analysis method was used for analysis the economic viability of FF/UMEC/VI.The scenario analysis,one-way sensitivity analysis and probability sensitivity analysis were used to verify the robustness of the results.Results Compared with fluticasone furoate/vilanterol(FF/VI),FF/UMEC/VI in the treatment of symptomatic chronic obstructive pulmonary disease patients with acute exacerbation risk saved costs 8 118.66 yuan and obtained an additional 0.000 06 QALYs,giving it an economic advantage.Compared with umeclidinium/vilanterol(UMEC/VI),FF/UMEC/VI treatment paid 2 784.41 yuan more and received 0.000 45 QALYs less,making UMEC/VI more cost-utility.The scenario analysis results further confirmed the robustness of the model.The sensitivity analysis results showed that when the drug cost of FF/UMEC/VI per cycle decreases to 637.29 yuan,FF/UMEC/VI had economic benefits under a willingness-to-pay threshold of 3 times China's per capita GDP in 2023.Conclusion For patients with symptomatic chronic obstructive pulmonary disease at risk of acute exacerbation,FF/UMEC/VI is more cost-utility than FF/VI.Compared with UMEC/VI,FF/UMEC/VI has economic viability after price reducing.
3.Association between serum uric acid concentration and radiographic axial spondylarthritis: a cross-sectional study of 202 patients.
Yupeng LAI ; Yanpeng ZHANG ; Zhihao LEI ; Yihong HUANG ; Tongxin NI ; Pin HE ; Xiaoling LI ; Chiduo XU ; Jun XIA ; Meiying WANG
Chinese Medical Journal 2023;136(9):1114-1116
4.Identification of potential pathogenic genes for perioperative neurocognitive disorder in patients with digestive system tumors
Ruomeng PEI ; Gaoxiang SHI ; Jiandong HE ; Chongfang HAN ; Wenqu YANG ; Zhihao WANG ; Hui WANG
Chinese Journal of Anesthesiology 2022;42(8):904-910
Objective:To identify the potential pathogenic genes for perioperative neurocognitive disorder (PND) in the patients with digestive system tumors.Methods:The gene expression data of esophageal cancer, gastric cancer, colon cancer, rectal cancer and liver cancer in The Cancer Genome Atlas database were analyzed by bioinformatics analysis method, and the differentially expressed genes in tumor tissues in above-mentioned disease samples were identified compared with para-carcinoma tissues.Secretory proteome differential genes with the same expression trend in digestive system tumors were obtained by comparing with human secretory proteome genes.The correlation between secretomics and PND was determined by comparing with the GeneCards database.Hub genes were identified through PPI network construction and calculation, and the functions and signaling pathways of the above-mentioned differential genes were identified through GO and KEGG enrichment analysis.Results:Compared with para-carcinoma tissues, the expression of 2 640 genes was significantly up-regulated and the expression of 1 423 genes was down-regulated in esophageal cancer tissues; the expression of 3 748 genes was up-regulated and the expression of 908 genes was down-regulated in gastric cancer samples; the expression of 2 684 genes was up-regulated and the expression of 2 678 genes was down-regulated in colon cancer samples; the expression of 2 876 genes was up-regulated and the expression of 2 945 genes was down-regulated in rectal cancer samples; the expression of 1 484 genes was up-regulated and the expression of 723 genes was down-regulated in hepatocellular carcinoma samples.Among them, the expression of the encoding genes of 53 secreted proteins was uniformly up-regulated and the expression of the encoding genes of 20 secreted proteins was uniformly down-regulated in the above tumors.Twenty up-regulated genes and 3 down-regulated genes were associated with PND.PPI network analysis showed that MMP9 was the hub gene.The results of GO and KEGG analysis suggested that differentially expressed genes were mainly related to receptor-ligand activity, cytokine activity and chemokine activity, and were mainly enriched in signaling pathways related to cell cycle and cellular senescence.Conclusions:About 23 differentially expressed genes in digestive system tumors are potentially related to PND, of which MMP9 and other genes may be the hub genes, mainly acting on receptor-ligand binding, regulation of cytokine and chemokine activity, cell cycle, cellular senescence and other related signaling pathways.
5.Application effect of nutritional management scheme based on modified Subjective Global Assessment in hemodialysis patients
Xiaoqin ZHENG ; Yangbiao HE ; Zhihao YANG
Chinese Journal of Modern Nursing 2022;28(22):3033-3038
Objective:To explore effects of establishing a modified Subjective Global Assessment (SGA) -based nutritional management scheme in undergoing maintenance hemodialysis (MHD) .Methods:Using the convenient sampling method, a total of 208 patients who received MHD treatment in Jinhua Hospital of Traditional Chinese Medicine from September 2019 to December 2020 were selected as the research subjects. They were divided into the control group and the observation group according to random number table method, with 104 cases in each group. The control group received routine nutrition intervention, while the observation group received nutritional management scheme based on modified SGA at basis of the control group. The nutritional indicators, anthropometric indicators, renal function indicators before and after 6 months of intervention and the total incidence of complications after 6 months of intervention were compared between the two groups.Results:After 6 months of intervention, the nutritional indexes and anthropometric indexes of the observation group were higher than those of the control group and the renal function index were lower than those of the control group, and the differences were statistically significant ( P<0.05) . The total incidence of complications in the observation group was 55.77% (58/104) , which was lower than 80.77% (84/104) in the control group, and the difference was statistically significant ( P<0.05) . Conclusions:The establishment of the modified SGA-based nutritional management scheme in MHD patients can ensure reasonable nutritional intake, improve nutritional index levels, reduce inflammatory response, improve immune function, maintain stable renal function, and reduce the occurrence of complications.
6.Study on the synchronization of biventricular beats with the control mode of left ventricular assist device.
Fangqun WANG ; Yao ZHANG ; Wanqian HE ; Si CHEN ; Teng JING ; Zhihao ZHANG
Journal of Biomedical Engineering 2021;38(1):72-79
Right ventricular (RV) failure has become a deadly complication of left ventricular assist device (LVAD) implantation, for which desynchrony in bi-ventricular pulse resulting from a LVAD is among the important factor. This paper investigated how different control modes affect the synchronization of pulse between LV (left ventricular) and RV by numerical method. The numerical results showed that the systolic duration between LV and RV did not significantly differ at baseline (LVAD off and cannula clamped) (48.52%
Heart Failure/therapy*
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Heart-Assist Devices
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Humans
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Systole
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Ventricular Dysfunction, Right
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Ventricular Function, Right
7.Molecular detection and genetic diversity of bovine papillomavirus in dairy cows in Xinjiang, China
Qingling MENG ; Chengcheng NING ; Lixia WANG ; Yan REN ; Jie LI ; Chencheng XIAO ; Yanfang LI ; Zhiyuan LI ; Zhihao HE ; Xuepeng CAI ; Jun QIAO
Journal of Veterinary Science 2021;22(4):e50-
Background:
Bovine papillomatosis is a type of proliferative tumor disease of skin and mucosae caused by bovine papillomavirus (BPV). As a transboundary and emerging disease in cattle, it poses a potential threat to the dairy industry.
Objectives:
The aim of this study is to detect and clarify the genetic diversity of BPV circulating in dairy cows in Xinjiang, China.
Methods:
122 papilloma skin lesions from 8 intensive dairy farms located in different regions of Xinjiang, China were detected by polymerase chain reaction. The genetic evolution relationships of various types of BPVs were analyzed by examining this phylogenetic tree.
Results:
Ten genotypes of BPV (BPV1, BPV2, BPV3, BPV6, BPV7, BPV8, BPV10, BPV11, BPV13, and BPV14) were detected and identified in dairy cows. These were the first reported detections of BPV13 and BPV14 in Xinjiang, Mixed infections were detected, and there were geographical differences in the distribution of the BPV genotypes. Notably, the BPV infection rate among young cattle (< 1-year-old) developed from the same supply of frozen sperm was higher than that of the other young cows naturally raised under the same environmental conditions.
Conclusions
Genotyping based on the L1 gene of BPV showed that BPVs circulating in Xinjiang China displayed substantial genetic diversity. This study provided valuable data at the molecular epidemiology level, which is conducive to developing deep insights into the genetic diversity and pathogenic characteristics of BPVs in dairy cows.
8.Molecular detection and genetic diversity of bovine papillomavirus in dairy cows in Xinjiang, China
Qingling MENG ; Chengcheng NING ; Lixia WANG ; Yan REN ; Jie LI ; Chencheng XIAO ; Yanfang LI ; Zhiyuan LI ; Zhihao HE ; Xuepeng CAI ; Jun QIAO
Journal of Veterinary Science 2021;22(4):e50-
Background:
Bovine papillomatosis is a type of proliferative tumor disease of skin and mucosae caused by bovine papillomavirus (BPV). As a transboundary and emerging disease in cattle, it poses a potential threat to the dairy industry.
Objectives:
The aim of this study is to detect and clarify the genetic diversity of BPV circulating in dairy cows in Xinjiang, China.
Methods:
122 papilloma skin lesions from 8 intensive dairy farms located in different regions of Xinjiang, China were detected by polymerase chain reaction. The genetic evolution relationships of various types of BPVs were analyzed by examining this phylogenetic tree.
Results:
Ten genotypes of BPV (BPV1, BPV2, BPV3, BPV6, BPV7, BPV8, BPV10, BPV11, BPV13, and BPV14) were detected and identified in dairy cows. These were the first reported detections of BPV13 and BPV14 in Xinjiang, Mixed infections were detected, and there were geographical differences in the distribution of the BPV genotypes. Notably, the BPV infection rate among young cattle (< 1-year-old) developed from the same supply of frozen sperm was higher than that of the other young cows naturally raised under the same environmental conditions.
Conclusions
Genotyping based on the L1 gene of BPV showed that BPVs circulating in Xinjiang China displayed substantial genetic diversity. This study provided valuable data at the molecular epidemiology level, which is conducive to developing deep insights into the genetic diversity and pathogenic characteristics of BPVs in dairy cows.
9.Correlation between the ability of pull-up and the composition of upper limbs among male college students in Guangxi
Chinese Journal of School Health 2020;41(1):96-99
Objective:
To explore the correlation between pull-up ability and upper body composition of male college students in a college in Guangxi, and to provide scientific guidance for college students’ exercise.
Methods:
A total of 685 male college students were randomly selected from a college in Guangxi.Pull up tests were implemented according to the national physical health test standards. Measurements of muscle mass, fat mass, fat percentage, etc. of the upper limbs were conducted by using the Ogilvy Body Composition Meter (TANITA MC-180). Data entry and analysis were performed by using SPSS 23.0.
Results:
The pass rate of male college students in the region was 21.7%; There was a statistically significant difference in the fat mass and percentage of body fat between males with different pull-up ability (F=11.30,14.18,12.91,15.22,P<0.01).After controlling age, height, weight and BMI, partial correlation analysis showed that there was a negative correlation between the pull-up ability of male college students and the fat mass and limb fat rate of both upper limbs(r=-0.22, -0.33, -0.31, -0.38, P<0.01).
Conclusion
The ability of male students in Guangxi to pull up is needed to be improved. Pull-up exercises can reduce fat mass and fat percentage in the upper limbs and improve body composition.
10.Expression of SOCS1 in overload papillary muscles of mice cardiac ventricle
Cong CHEN ; Zhihao SHEN ; Pokuaa DOROTHY ; Kwabena BOAKYE ; Zhongyi ZHANG ; Jun CHEN ; Han WANG ; Caicai ZHANG ; Tong HE ; Lingfeng GAO ; Zhibin CHEN ; Yang WANG
International Journal of Biomedical Engineering 2018;41(5):410-416
Objective Toinvestigatetheexpressionofsuppressorofcytokinesignaling1(SOCS1)inoverloaded ventricle papillary muscle, so as to understand its expression characteristics in structural remodeling after the overloading and the biomechanical properties of the muscle under cubic jellyfish toxin-1(CfTX-1) pretreatment that can affect cell signal transduction. Methods Abdominal aortic-venous fistula (AVF) were operated in Kunming mice (n=5), and the cardiac left ventricles were harvested after two weeks of fistulation. The mice in normal group were sham operated as a control (n=5). In vitro culture, the left ventricular papillary muscle of normal mice was used (n=20). In the stretching group, the isolated papillary muscles were double-ratio stretched and fixed on silicone plate. In the relaxation group, the muscles were not stretched. A separated subgroup that transfected with SOCS1 plasmids were set in each group of stretching and relaxation. The papillary muscle samples of each group were cultured in culture medium for 3 days at 37 ℃, and then homogenized for extracting total protein. The total protein was separated by 10% sodium dodecyl sulfate-polyacrylamide gel electrophoresis. The 23 ku band with SOCS1 was used as the target band, and the integrated optical density (IOD) value was measured by computer image analysis method. The expression of SOCS1 protein was detected by Western Blot and the imprinted IOD value was also measured. The papillary muscle in the stretching group was stretched by micro-positioned stretching method, and the initial load was 1 g. After stabilization, the papillary muscle was stretched by 15 mm for continuously 5 times, and the passive tension characteristic curves during the first and fifth stretching were observed and recorded. The peak passive tension (PTmax) and its deceleration velocity (DV) of the papillary muscle were calculated based on the curves. Results Comparing with the AVF group, the normal group had higher IOD values of 23 ku band and SOCS1 blot in total protein of the papillary muscle, and the differences were statistically significant (all P<0.01). The IOD value of 23 ku band in the SOCS1 transfected stretching group was significantly higher than those of the two relaxation groups, and the differences were statistically significant (all P<0.01). However, the difference of this value was not statistically significant between the two relaxation groups. The average IOD value of SOCS1 blot in the SOCS1 transfected stretching group was higher than those of the normal stretching group and the SOCS1 transfected relaxation group, and the differences were statistically significant (all P<0.01). Comparing with the normal group, the AVF group had higher PTmax and ultimate PTmax of the papillary muscles, and had a lower DV values, and the differences were statistically significant (all P<0.01). Conclusions The expression of SOCS1 is sensitive to tension load, and has a positive effect as an overload-sensitive signal in improving myocardial adaptability, protecting myocardial structure and maintaining systolic and diastolic function. CfTX-1 also has a positive effect on improving the compliance of ventricular papillary muscles.


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