1.Da Chaihutang for Treatment of Sepsis with Yang Syndrome:A Randomized Controlled Trial
Na HUANG ; Guangmei CHEN ; Xingyu KAO ; Zhen YANG ; Weixian XU ; Kang YUAN ; Junna LEI ; Jingli CHEN ; Mingfeng HE
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(1):55-63
		                        		
		                        			
		                        			ObjectiveTo explore the clinical efficacy and safety of Da Chaihutang (DCH) for the treatment of sepsis with Yang syndrome. MethodsA total of 70 patients suffering from sepsis with Yang syndrome were randomly divided into an observation group and a control group, with 35 cases in each group. They both received standard Western medicine treatment. The observation group was additionally given a dose of DCH, which was boiled into 100 mL and taken twice. The control group was additionally given an equal volume and dosage of warm water. The intervention lasted for three days. The 28-day all-cause mortality and the changes in the following indicators before and after intervention were compared between the two groups, including sequential organ failure assessment (SOFA), acute physiology and chronic health evaluation Ⅱ (APACHE Ⅱ) score,white blood cell (WBC),the percentage of neutrophils (NEU%),C-reactive protein (CRP),procalcitonin (PCT),alanine transaminase (ALT),aspartate transaminase (AST),total bilirubin (TBil),creatinine (Cr),blood urea nitrogen (BUN),acute gastrointestinal injury (AGI) grade,gastrointestinal dysfunction score (GDS),serum intestinal fatty acid-binding protein (iFABP), citrulline (CR),platelet (PLT),prothrombin time(PT),activated partial thromboplastin time (APTT),fibrinogen (Fib),international normalized ratio (INR),and D-dimer (D-D). ResultsThere was no significant difference between the two groups regarding 28-day all-cause mortality. After the intervention,SOFA,WBC,PCT,and Cr were significantly decreased, and PLT was significantly increased in the control group (P<0.05). SOFA,APACHE Ⅱ,NEU%,CRP,PCT,ALT,AST,Cr,BUN,AGI grade,GDS,and serum iFABP and CR were significantly improved in the observation group (P<0.05). After the intervention,APACHE Ⅱ,PCT,AGI grade,GDS,and serum iFABP in the observation group were significantly lower than those in the control group ,while CR and PLT were higher (P<0.05,P<0.01). There were significant differences regarding the gap of SOFA,APACHE Ⅱ,AST,TBil,AGI grade,GDS,iFABP,CR, and PLT between the two groups (P<0.05,P<0.01). There were slight differences regarding PT,APTT,Fib,INR,and D-D between the two groups,which were in the clinical normal range. ConclusionOn the basis of Western medicine, DCH helped to reduce sepsis severity and improved multiple organ dysfunction with high clinical efficacy and safety, but further research on its impact on the prognosis of patients with sepsis is still required. 
		                        		
		                        		
		                        		
		                        	
2.Renshentang Alleviates Atherosclerosis in Mice by Targeting TRPV1 to Regulate Foam Cell Cholesterol Metabolism
Yulu YUAN ; Ce CHU ; Xuguang TAO ; Zhen YANG ; Xiangyun CHEN ; Zhanzhan HE ; Yongqi XU ; Yuxin ZHANG ; Peizhang ZHAO ; Wanping CHEN ; Hongxia ZHAO ; Wenlai WANG
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(17):11-19
		                        		
		                        			
		                        			ObjectiveTo explore the effects of Renshentang on atherosclerosis (AS) in mice based on the role of transient receptor potential vanilloid1 (TRPV1) in regulating cholesterol metabolism in foam cells. MethodsNine SPF-grade 8-week-old C57BL/6J mice were set as a normal group, and 60 ApoE-/- mice were randomized into model, positive drug (simvastatin, 0.02 g·kg-1·d-1), and low-, medium-, and high-dose (1.77, 3.54, 7.08 g·kg-1·d-1, respectively) Renshentang groups (n=12) according to body weight. The normal group was fed with a normal diet, and the other groups were fed with a high-fat diet and given corresponding drugs by oral gavage for the modeling of AS. The mice were administrated with corresponding drugs once a day for 12 weeks. After the last administration and fasting for 12 h, the aorta was collected. Plaque conditions, pathological changes, levels of total cholesterol (TC), triglcerides (TG), low-density lipoprotein-cholesterol (LDL-C), and high-density lipoprotein-cholesterol (HDL-C), and the expression of TRPV1, liver X receptor (LXR), inducible degrader of the low-density lipoprotein receptor (IDOL), and low-density lipoprotein receptor (LDLR) in the aortic tissue were observed and detected by gross oil red O staining, HE staining, Western blot, immunohistochemistry, and real-time PCR. ResultsCompared with the normal group, the model group presented obvious plaque deposition in the aorta, raised levels of TC, TG, and LDL-C in the serum (P<0.01), up-regulated expression level of LDLR in the aorta (P<0.01), lowered level of HDL-C in the serum, and down-regulated expression levels of TRPV1, LXR, and IDOL in the aorta (P<0.05, P<0.01). Compared with the model group, the positive drug and Renshentang at different doses alleviated AS, elevated the levels of HDL-C, TRPV1, LXR, and IDOL (P<0.05, P<0.01), while lowering the levels of TC, TG, LDL-C, and LDLR (P<0.05, P<0.01). ConclusionRenshentang has a lipid-lowering effect on AS mice. It can effectively reduce lipid deposition, lipid levels, and plaque area of AS mice by activating TRPV1 expression and regulating the LXR/IDOL/LDLR pathway. 
		                        		
		                        		
		                        		
		                        	
3.Renshentang Alleviates Atherosclerosis in Mice by Targeting TRPV1 to Regulate Foam Cell Cholesterol Metabolism
Yulu YUAN ; Ce CHU ; Xuguang TAO ; Zhen YANG ; Xiangyun CHEN ; Zhanzhan HE ; Yongqi XU ; Yuxin ZHANG ; Peizhang ZHAO ; Wanping CHEN ; Hongxia ZHAO ; Wenlai WANG
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(17):11-19
		                        		
		                        			
		                        			ObjectiveTo explore the effects of Renshentang on atherosclerosis (AS) in mice based on the role of transient receptor potential vanilloid1 (TRPV1) in regulating cholesterol metabolism in foam cells. MethodsNine SPF-grade 8-week-old C57BL/6J mice were set as a normal group, and 60 ApoE-/- mice were randomized into model, positive drug (simvastatin, 0.02 g·kg-1·d-1), and low-, medium-, and high-dose (1.77, 3.54, 7.08 g·kg-1·d-1, respectively) Renshentang groups (n=12) according to body weight. The normal group was fed with a normal diet, and the other groups were fed with a high-fat diet and given corresponding drugs by oral gavage for the modeling of AS. The mice were administrated with corresponding drugs once a day for 12 weeks. After the last administration and fasting for 12 h, the aorta was collected. Plaque conditions, pathological changes, levels of total cholesterol (TC), triglcerides (TG), low-density lipoprotein-cholesterol (LDL-C), and high-density lipoprotein-cholesterol (HDL-C), and the expression of TRPV1, liver X receptor (LXR), inducible degrader of the low-density lipoprotein receptor (IDOL), and low-density lipoprotein receptor (LDLR) in the aortic tissue were observed and detected by gross oil red O staining, HE staining, Western blot, immunohistochemistry, and real-time PCR. ResultsCompared with the normal group, the model group presented obvious plaque deposition in the aorta, raised levels of TC, TG, and LDL-C in the serum (P<0.01), up-regulated expression level of LDLR in the aorta (P<0.01), lowered level of HDL-C in the serum, and down-regulated expression levels of TRPV1, LXR, and IDOL in the aorta (P<0.05, P<0.01). Compared with the model group, the positive drug and Renshentang at different doses alleviated AS, elevated the levels of HDL-C, TRPV1, LXR, and IDOL (P<0.05, P<0.01), while lowering the levels of TC, TG, LDL-C, and LDLR (P<0.05, P<0.01). ConclusionRenshentang has a lipid-lowering effect on AS mice. It can effectively reduce lipid deposition, lipid levels, and plaque area of AS mice by activating TRPV1 expression and regulating the LXR/IDOL/LDLR pathway. 
		                        		
		                        		
		                        		
		                        	
4.Mechanism of Zhishi Xiebai Guizhitang in Treating AS Based on Regulation of Cholesterol Metabolism in Foam Cells by TRPA1
Zhanzhan HE ; Zhen YANG ; Xuguang TAO ; Xiangyun CHEN ; Wei DING ; Ce CHU ; Yulu YUAN ; Yuxin ZHANG ; Yongqi XU ; Peizhang ZHAO ; Hongxia ZHAO ; Wenlai WANG
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(10):1-10
		                        		
		                        			
		                        			ObjectiveTo explore the effect and mechanism of Zhishi Xiebai Guizhitang on the progression of atherosclerosis (AS) mice based on the regulation of cholesterol metabolism in foam cells by transient receptor potential channel ankyrin 1 (TRPA1). MethodThe AS model was established on apolipoprotein E knockout (ApoE-/-) mice with a high-fat diet. The mice were randomly divided into low-dose, middle-dose, and high-dose groups of Zhishi Xiebai Guizhitang (2.97, 5.94, 11.88 g·kg-1) and simvastatin group (0.002 g·kg-1), and the drug was administered along with a high-fat diet. C57BL/6J mice were fed an ordinary diet as a normal group. After the above process, the aorta and serum of mice were taken. The pathological changes of the aortic root were observed by hematoxylin-eosin (HE) staining. The lipid plaques in the aorta were observed by gross oil redness. Serum levels of total cholesterol (TC), triglyceride (TG), low density lipoprotein cholesterol (LDL-C), and high density lipoprotein cholesterol (HDL-C) were detected, and the levels of interleukin-1β (IL-1β) and interleukin-18 (IL-18) were detected by enzyme-linked immunosorbent assay (ELISA). Western blot and immunohistochemical method were used to analyze the expression of TRPA1, ATP-binding cassette transporter A1 (ABCA1), ATP-binding cassette transporter G1 (ABCG1), and mannose receptor (CD206). ResultFrom the perspective of drug efficacy, compared with the normal group, pathological changes such as plaque, a large number of foam cells, and cholesterol crystals appeared in the aorta of the model group, and the serum levels of TC, LDL-C, IL-1β, and IL-18 were significantly increased (P<0.01). The HDL-C level was significantly decreased (P<0.01), and the CD206 level in aortic tissue was significantly decreased (P<0.01). Compared with the model group, the lipid deposition in the aorta was alleviated in all drug administration groups. In addition, except for the high-dose group of Zhishi Xiebai Guizhitang, all drug administration groups could significantly decrease the levels of TC and LDL-C (P<0.01). In terms of inflammation, except for the middle-dose group of Zhishi Xiebai Guizhitang, the levels of IL-1β and IL-18 were significantly decreased in all drug administration groups (P<0.05). Moreover, Zhishi Xiebai Guizhitang could also up-regulate the levels of CD206, and the difference was significant in the middle-dose and high-dose groups (P<0.05). From the perspective of mechanism, the expression levels of TRPA1, ABCA1, and ABCG1 in the aorta in the model group were lower than those in the normal group (P<0.05). Compared with the model group, all drug administration groups significantly increased the expression of TRPA1 in the aorta (P<0.05), and the expressions of ABCA1 and ABCG1 were increased. The differences in the middle-dose and high-dose groups and the simvastatin group were significant (P<0.05), which was basically consistent with the trend of immunohistochemical results. ConclusionZhishi Xiebai Guizhitang can effectively reduce blood lipid and inflammation levels and inhibit the formation of aortic plaque. The mechanism may be explained as follows: the expressions of ABCA1 and ABCG1 downstream are increased through TRPA1, which promotes cholesterol outflow in foam cells, thereby regulating cholesterol metabolism, intervening in inflammation level to a certain extent, and finally treating AS. 
		                        		
		                        		
		                        		
		                        	
5.Effect and Mechanism of Chinese Medicine in Treatment of Osteoporosis
Yulu YUAN ; Zhen YANG ; Wei DING ; Ce CHU ; Xuguang TAO ; Xiangyun CHEN ; Zhanzhan HE ; Peizhang ZHAO ; Yongqi XU ; Yuxin ZHANG ; Hongxia ZHAO ; Wenlai WANG
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(4):290-298
		                        		
		                        			
		                        			Osteoporosis (OP) is a common bone disease affecting the quality of life and causing huge medical burden to the patients and society. The occurrence of OP is mainly caused by excessive bone resorption and insufficient bone formation, which are directly influenced by external calcium ion balance. Calcium imbalance can impair bone integrity, reduce the calcium supply to the bone, and lower the calcium content in the bone, thus triggering OP. Drugs are the main anti-OP therapy in modern medicine, which, however, may cause adverse reactions and drug dependence. Chinese medicines have good clinical effects and high safety in treating OP, being suitable for long-term use. Recent studies have shown that Chinese medicines can alleviate estrogen deficiency, regulate bone cell and calcium metabolism, which is crucial for the formation and development of OP. The transient receptor potential cation channel superfamily V members 5 and 6 (TRPV5 and TRPV6, respectively) affect bone homeostasis by mediating the transmembrane calcium ion transport in the intestine (TRPV6) and kidney (TRPV5). Therefore, TRPV5/6 is one of the key targets to understand the anti-OP mechanisms of the effective parts of Chinese medicines, which is worthy of further study. This paper summarizes the research results about the anti-OP effects of Chinese medicines in the last two decades, especially the mechanism of regulating calcium metabolism, aiming to provide new ideas for the basic research, clinical application, and drug development of OP treatment. 
		                        		
		                        		
		                        		
		                        	
6.Adverse Reactions of Vaccine Vaccination in Children with Special Health Conditions in Kunming and Countermeasures
Zhen XU ; Yu LING ; Sixiang LIU ; Yu SONG ; Yang PENG ; Jingjing SUN
Journal of Kunming Medical University 2024;45(3):141-145
		                        		
		                        			
		                        			Objective To explore the occurrence of adverse reactions to vaccination in children with special health status in Kunming and the corresponding countermeasures.Methods The information data of 952 children with special health conditions who were vaccinated at the Child Healthcare Department of the Kunming Children's Hospital from October 2021 to February 2023 were collected,and descriptive methods were used for epidemiological analysis.Results The detection rate of adverse reactions in children with special health conditions in Kunming was 10.92%(104/952),all of which were mild adverse reactions.The top three vaccines with the highest detection rates of adverse reactions were adsorbed acellular pertussis-diphtheria-tetanus vaccine(Pertussis-Diphtheria-Tetanus),measles-mumps-rubella attenuated live vaccine(Measles-Mumps-Rubella),and meningococcal polysaccharide vaccine group A and C(Meningococcal A+C),with detection rates of 7.00%,4.14%,and 3.08%,respectively.The detection rate of adverse reactions in children with premature birth,allergy,and anemia after vaccination was higher,with detection rates of 13.87%,11.03%,and 10.05%,respectively.The detection rate of adverse reactions after more than two vaccinations was 73.08%,which was higher than the first vaccination detection rate of 26.92%.The clinical manifestations of vaccine adverse reactions were mainly fever,redness,and induration,with detection rates of 39.42%,21.15%,and 18.27%,respectively.The detection rate of adverse reactions in children with special health conditions under the age of two was higher,accounting for 75.00%.The detection rate of adverse reactions within 24 hours after vaccination was higher,accounting for 62.50%.After timely symptomatic treatment and follow-up observation,all adverse reactions in children with special health conditions after vaccination recovered within 7 days.Conclusion Adverse reactions after vaccination in children with special health conditions in Kunming are predominantly mild.The detection rate of adverse reactions post-vaccination for pertussis,measles,mumps,and meningococcal A+C is notably high.Children under 2 years old with premature birth,allergy,and anemia are more likely to have adverse reactions after vaccination.These adverse reactions typically manifest within 24 hours post-vaccination and resolve within 7 days.
		                        		
		                        		
		                        		
		                        	
7.Evaluation of the retention effect of nasointestinal canal indwelling in severe neurosurgical patients guided by miniature visualization system
Lin YANG ; Bin XU ; Liqing BI ; Juan WU ; Xiaoxiao MAO ; Xiupeng XU ; Hui HOU ; Ke ZHEN
Chinese Journal of Practical Nursing 2024;40(10):730-736
		                        		
		                        			
		                        			Objective:To investigate the feasibility, safety and reasonable operation of nasointestinal canal indwelling guided by miniature system in severe neurosurgery patients, and compare its advantages and disadvantages with traditional blind insertion.Methods:A prospective randomized controlled trial design was used to select 128 critically ill patients in need of enteral nutrition support at the Department of Neurosurgery, the First Affiliated Hospital of Nanjing Medical University from March 2022 to October 2023 by convenient sampling method. They were divided into blind insertion group and visualization group by random number table method, with 64 cases in each group. Nasointestinal canal indwelling was performed in the blind insertion group by traditional blind insertion method, and in the visualization group, nasointestinal canal indwelling was performed by indentations guided by the miniature visualization system. The success rate of initial catheterization, the time of catheterization, complications, changes of vital signs during catheterization and changes of nutritional indexes after catheterization were evaluated in 2 groups.Results:In the blind insertion group, there were 35 males and 29 females, aged (59.44 ± 13.84) years old. In the visualization group, there were 41 males and 23 females, aged (58.28 ± 12.08) years old. The success rate of the first catheter placement in the visual group was 96.8% (62/64), higher than that in the blind group 82.8% (53/64), and the difference was statistically significant ( χ2=6.94, P<0.05). The catheter placement time of the visualization group was (20.08 ± 2.69) min, which was shorter than that of the blind insertion group (38.19 ± 3.79) min, and the difference between the two groups was statistically significant ( t=29.99, P<0.05). There was no significant difference in the incidence of complications, changes of vital signs during catheterization and the changes of nutritional indexes after catheterization between two groups (all P>0.05). Conclusions:Compared with traditional blind nasointestinal canal indwelling, nasointestinal canal indwelling guided by the miniature visualization system can improve the success rate of the first catheterization and shorten the catheterization time. Although there is no difference in the complication rate, changes in vital signs during catheterization and changes in nutritional indexes after catheterization, it is believed that with the continuous development and upgrading of this technology, it will further reflect the advantages of this technology, which is worthy of further clinical trials and application.
		                        		
		                        		
		                        		
		                        	
8.Metformin:A promising clinical therapeutical approach for BPH treatment via inhibiting dysregulated steroid hormones-induced prostatic epithelial cells proliferation
Tingting YANG ; Jiayu YUAN ; Yuting PENG ; Jiale PANG ; Zhen QIU ; Shangxiu CHEN ; Yuhan HUANG ; Zhenzhou JIANG ; Yilin FAN ; Junjie LIU ; Tao WANG ; Xueyan ZHOU ; Sitong QIAN ; Jinfang SONG ; Yi XU ; Qian LU ; Xiaoxing YIN
Journal of Pharmaceutical Analysis 2024;14(1):52-68
		                        		
		                        			
		                        			The occurrence of benign prostate hyperplasia(BPH)was related to disrupted sex steroid hormones,and metformin(Met)had a clinical response to sex steroid hormone-related gynaecological disease.How-ever,whether Met exerts an antiproliferative effect on BPH via sex steroid hormones remains unclear.Here,our clinical study showed that along with prostatic epithelial cell(PEC)proliferation,sex steroid hormones were dysregulated in the serum and prostate of BPH patients.As the major contributor to dysregulated sex steroid hormones,elevated dihydrotestosterone(DHT)had a significant positive rela-tionship with the clinical characteristics of BPH patients.Activation of adenosine 5'-monophosphate(AMP)-activated protein kinase(AMPK)by Met restored dysregulated sex steroid hormone homeostasis and exerted antiproliferative effects against DHT-induced proliferation by inhibiting the formation of androgen receptor(AR)-mediated Yes-associated protein(YAP1)-TEA domain transcription factor(TEAD4)heterodimers.Met's anti-proliferative effects were blocked by AMPK inhibitor or YAP1 over-expression in DHT-cultured BPH-1 cells.Our findings indicated that Met would be a promising clinical therapeutic approach for BPH by inhibiting dysregulated steroid hormone-induced PEC proliferation.
		                        		
		                        		
		                        		
		                        	
9.The experience on the construction of the cluster prevention and control system for COVID-19 infection in designated hospitals during the period of "Category B infectious disease treated as Category A"
Wanjie YANG ; Xianduo LIU ; Ximo WANG ; Weiguo XU ; Lei ZHANG ; Qiang FU ; Jiming YANG ; Jing QIAN ; Fuyu ZHANG ; Li TIAN ; Wenlong ZHANG ; Yu ZHANG ; Zheng CHEN ; Shifeng SHAO ; Xiang WANG ; Li GENG ; Yi REN ; Ying WANG ; Lixia SHI ; Zhen WAN ; Yi XIE ; Yuanyuan LIU ; Weili YU ; Jing HAN ; Li LIU ; Huan ZHU ; Zijiang YU ; Hongyang LIU ; Shimei WANG
Chinese Critical Care Medicine 2024;36(2):195-201
		                        		
		                        			
		                        			The COVID-19 epidemic has spread to the whole world for three years and has had a serious impact on human life, health and economic activities. China's epidemic prevention and control has gone through the following stages: emergency unconventional stage, emergency normalization stage, and the transitional stage from the emergency normalization to the "Category B infectious disease treated as Category B" normalization, and achieved a major and decisive victory. The designated hospitals for prevention and control of COVID-19 epidemic in Tianjin has successfully completed its tasks in all stages of epidemic prevention and control, and has accumulated valuable experience. This article summarizes the experience of constructing a hospital infection prevention and control system during the "Category B infectious disease treated as Category A" period in designated hospital. The experience is summarized as the "Cluster" hospital infection prevention and control system, namely "three rings" outside, middle and inside, "three districts" of green, orange and red, "three things" before, during and after the event, "two-day pre-purification" and "two-director system", and "one zone" management. In emergency situations, we adopt a simplified version of the cluster hospital infection prevention and control system. In emergency situations, a simplified version of the "Cluster" hospital infection prevention and control system can be adopted. This system has the following characteristics: firstly, the system emphasizes the characteristics of "cluster" and the overall management of key measures to avoid any shortcomings. The second, it emphasizes the transformation of infection control concepts to maximize the safety of medical services through infection control. The third, it emphasizes the optimization of the process. The prevention and control measures should be comprehensive and focused, while also preventing excessive use. The measures emphasize the use of the least resources to achieve the best infection control effect. The fourth, it emphasizes the quality control work of infection control, pays attention to the importance of the process, and advocates the concept of "system slimming, process fattening". Fifthly, it emphasizes that the future development depends on artificial intelligence, in order to improve the quality and efficiency of prevention and control to the greatest extent. Sixth, hospitals need to strengthen continuous training and retraining. We utilize diverse training methods, including artificial intelligence, to ensure that infection control policies and procedures are simple. We have established an evaluation and feedback mechanism to ensure that medical personnel are in an emergency state at all times.
		                        		
		                        		
		                        		
		                        	
10.Clinical investigation of Q. Flex for improvement of PET/CT image quality and quantitative accuracy of pulmonary nodules
Dong DAI ; Jianjing LIU ; Di LU ; Guoqing SUI ; Yaya WANG ; Xueyao LIU ; Yuanfang YUE ; Zhen YANG ; Qing YANG ; Jie FU ; Wengui XU ; Ziyang WANG
Chinese Journal of Nuclear Medicine and Molecular Imaging 2024;44(2):98-103
		                        		
		                        			
		                        			Objective:To compare the imaging quality and metabolic quantitative parameters of pulmonary nodules between Q. Flex whole information five-dimensional (5D) and conventional three-dimensional (3D) PET/CT imaging for clinical evaluation.Methods:Fifty-four patients (30 males, 24 females, age: 60(42, 75) years; 78 solid pulmonary nodules (maximum diameter≤3 cm) with abnormal uptake of 18F-FDG) from Tianjin Cancer Hospital Airport Hospital between June 2022 and August 2022 were enrolled in this retrospective study. All patients underwent 5D scanning and 3D, 5D reconstruction. Image quality scores, signal-to-noise ratio (SNR), SUV max, SUV mean and metabolic tumor volume (MTV) of pulmonary nodules of 5D group and 3D group were evaluated and compared with χ2 test and Wilcoxon signed rank test. Correlation of quantitative parameters between 2 groups were analyzed by using Spearman rank correlation analysis. Results:Thirty-five of 78(45%) pulmonary nodules with image quality score≥4 were found in 5D group, which were more than those in 3D group (22/78(28%); χ2=4.67, P=0.031). Meanwhile, SNR, SUV max, SUV mean, and MTV were significantly positively correlated between the 2 groups ( rs values: 0.86, 0.86, 0.85, and 0.95, all P<0.001). SNR, SUV max and SUV mean of pulmonary nodules in 5D group were significantly higher than those in 3D group, which were 37.46(18.42, 62.00) vs 32.72(16.97, 54.76) ( z=-4.07, P<0.001), 9.71(5.48, 13.82) vs 8.96(4.82, 12.63) ( z=-3.05, P<0.001) and 6.30(3.39, 8.94) vs 5.61(2.99, 7.63)( z=-4.07, P<0.001) respectively. MTV of pulmonary nodules in 5D group was significantly lower than that in 3D group, which was 1.72(0.66, 2.74) cm 3vs 1.98(1.06, 4.63) cm 3 ( z=-7.13, P<0.001). Quantitative parameters of lower lung field and nodules with maximum diameters of >10 mm and ≤20 mm based on 5D scanning changed most significantly compared with those based on 3D scanning ( z values: from -5.23 to -2.48, all P<0.05). Conclusion:Q. Flex 5D PET significantly improves the quantitative accuracy of SUV and MTV of pulmonary nodules, and the improvement of image quality is substantial without increasing the radiation dose, which has clinical practical value.
		                        		
		                        		
		                        		
		                        	
            
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