1.Research on Magnetic Stimulation Intervention Technology for Alzheimer’s Disease Guided by Heart Rate Variability
Shu-Ting CHEN ; Du-Yan GENG ; Chun-Meng FAN ; Wei-Ran ZHENG ; Gui-Zhi XU
Progress in Biochemistry and Biophysics 2025;52(5):1264-1278
		                        		
		                        			
		                        			ObjectiveNon-invasive magnetic stimulation technology has been widely used in the treatment of Alzheimer’s disease (AD), but there is a lack of convenient and timely methods for evaluating and providing feedback on the effectiveness of the stimulation, which can be used to guide the adjustment of the stimulation protocol. This study aims to explore the possibility of heart rate variability (HRV) in diagnosing AD and guiding AD magnetic stimulation intervention techniques. MethodsIn this study, we used a 40 Hz, 10 mT pulsed magnetic field to expose AD mouse models to whole-body exposure for 18 d, and detected the behavioral and electroencephalographic signals before and after exposure, as well as the instant electrocardiographic signals after exposure every day. ResultsUsing one-way ANOVA and Pearson correlation coefficient analysis, we found that some HRV indicators could identify AD mouse models as accurately as behavioral and electroencephalogram(EEG) changes (P<0.05) and significantly distinguish the severity of the disease (P<0.05), including rMSSD, pNN6, LF/HF, SD1/SD2, and entropy arrangement. These HRV indicators showed good correlation and statistical significance with behavioral and EEG changes (r>0.3, P<0.05); HRV indicators were significantly modulated by the magnetic field exposure before and after the exposure, both of which were observed in the continuous changes of electrocardiogram (ECG) (P<0.05), and the trend of the stimulation effect was more accurately observed in the continuous changes of ECG. ConclusionHRV can accurately reflect the pathophysiological changes and disease degree, quickly evaluate the effect of magnetic stimulation, and has the potential to guide the pattern of magnetic exposure, providing a new idea for the study of personalized electromagnetic neuroregulation technology for brain diseases. 
		                        		
		                        		
		                        		
		                        	
2.To compare the efficacy and incidence of severe hematological adverse events of flumatinib and imatinib in patients newly diagnosed with chronic phase chronic myeloid leukemia.
Xiao Shuai ZHANG ; Bing Cheng LIU ; Xin DU ; Yan Li ZHANG ; Na XU ; Xiao Li LIU ; Wei Ming LI ; Hai LIN ; Rong LIANG ; Chun Yan CHEN ; Jian HUANG ; Yun Fan YANG ; Huan Ling ZHU ; Ling PAN ; Xiao Dong WANG ; Gui Hui LI ; Zhuo Gang LIU ; Yan Qing ZHANG ; Zhen Fang LIU ; Jian Da HU ; Chun Shui LIU ; Fei LI ; Wei YANG ; Li MENG ; Yan Qiu HAN ; Li E LIN ; Zhen Yu ZHAO ; Chuan Qing TU ; Cai Feng ZHENG ; Yan Liang BAI ; Ze Ping ZHOU ; Su Ning CHEN ; Hui Ying QIU ; Li Jie YANG ; Xiu Li SUN ; Hui SUN ; Li ZHOU ; Ze Lin LIU ; Dan Yu WANG ; Jian Xin GUO ; Li Ping PANG ; Qing Shu ZENG ; Xiao Hui SUO ; Wei Hua ZHANG ; Yuan Jun ZHENG ; Qian JIANG
Chinese Journal of Hematology 2023;44(9):728-736
		                        		
		                        			
		                        			Objective: To analyze and compare therapy responses, outcomes, and incidence of severe hematologic adverse events of flumatinib and imatinib in patients newly diagnosed with chronic phase chronic myeloid leukemia (CML) . Methods: Data of patients with chronic phase CML diagnosed between January 2006 and November 2022 from 76 centers, aged ≥18 years, and received initial flumatinib or imatinib therapy within 6 months after diagnosis in China were retrospectively interrogated. Propensity score matching (PSM) analysis was performed to reduce the bias of the initial TKI selection, and the therapy responses and outcomes of patients receiving initial flumatinib or imatinib therapy were compared. Results: A total of 4 833 adult patients with CML receiving initial imatinib (n=4 380) or flumatinib (n=453) therapy were included in the study. In the imatinib cohort, the median follow-up time was 54 [interquartile range (IQR), 31-85] months, and the 7-year cumulative incidences of CCyR, MMR, MR(4), and MR(4.5) were 95.2%, 88.4%, 78.3%, and 63.0%, respectively. The 7-year FFS, PFS, and OS rates were 71.8%, 93.0%, and 96.9%, respectively. With the median follow-up of 18 (IQR, 13-25) months in the flumatinib cohort, the 2-year cumulative incidences of CCyR, MMR, MR(4), and MR(4.5) were 95.4%, 86.5%, 58.4%, and 46.6%, respectively. The 2-year FFS, PFS, and OS rates were 80.1%, 95.0%, and 99.5%, respectively. The PSM analysis indicated that patients receiving initial flumatinib therapy had significantly higher cumulative incidences of CCyR, MMR, MR(4), and MR(4.5) and higher probabilities of FFS than those receiving the initial imatinib therapy (all P<0.001), whereas the PFS (P=0.230) and OS (P=0.268) were comparable between the two cohorts. The incidence of severe hematologic adverse events (grade≥Ⅲ) was comparable in the two cohorts. Conclusion: Patients receiving initial flumatinib therapy had higher cumulative incidences of therapy responses and higher probability of FFS than those receiving initial imatinib therapy, whereas the incidence of severe hematologic adverse events was comparable between the two cohorts.
		                        		
		                        		
		                        		
		                        			Adult
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Adolescent
		                        			;
		                        		
		                        			Imatinib Mesylate/adverse effects*
		                        			;
		                        		
		                        			Incidence
		                        			;
		                        		
		                        			Antineoplastic Agents/adverse effects*
		                        			;
		                        		
		                        			Retrospective Studies
		                        			;
		                        		
		                        			Pyrimidines/adverse effects*
		                        			;
		                        		
		                        			Leukemia, Myelogenous, Chronic, BCR-ABL Positive/drug therapy*
		                        			;
		                        		
		                        			Treatment Outcome
		                        			;
		                        		
		                        			Benzamides/adverse effects*
		                        			;
		                        		
		                        			Leukemia, Myeloid, Chronic-Phase/drug therapy*
		                        			;
		                        		
		                        			Aminopyridines/therapeutic use*
		                        			;
		                        		
		                        			Protein Kinase Inhibitors/therapeutic use*
		                        			
		                        		
		                        	
3.Effects of electro-scalp acupuncture on inflammatory response and microglial polarization in the ischemic cortex of rats with ischemic stroke.
Xiao-Yun PENG ; Bo YUAN ; Tian TIAN ; Wen-Jun LUO ; Ling-Gui ZHU ; Yan-Ju ZHANG ; Ying LI ; Xiao-Zheng DU ; Jin-Hai WANG
Chinese Acupuncture & Moxibustion 2023;43(9):1050-1055
		                        		
		                        			OBJECTIVE:
		                        			To observe the effects of electro-scalp acupuncture (ESA) on the expression of microglial markers CD206 and CD32, as well as interleukin (IL)-6, IL-1β, and IL-10 in the ischemic cortex of rats with ischemic stroke, and to explore the mechanisms of ESA on alleviating inflammatory damage of ischemic stroke.
		                        		
		                        			METHODS:
		                        			Sixty 7-week-old male SD rats were randomly selected, with 15 rats assigned to a sham surgery group. The remaining rats were treated with suture method to establish rat model of middle cerebral artery occlusion (MCAO). The rats with successful model were randomly divided into a model group, a VitD3 group, and an ESA group, with 15 rats in each group. In the ESA group, ESA was performed bilaterally at the "top-temporal anterior oblique line" with disperse-dense wave, a frequency of 2 Hz/100 Hz, and an intensity of 1 mA. Each session lasted for 30 min, once daily, for a total of 7 days. The VitD3 group were treated with intragastric administration of 1,25-dihydroxyvitamin D3 (1,25-VitD3) solution (3 ng/100 g), once daily for 7 days. The neurological deficit scores and neurobehavioral scores were assessed before and after the intervention. After the intervention, the brain infarct volume was evaluated using 2,3,5-triphenyltetrazolium chloride (TTC) staining. Immunofluorescence double staining was performed to detect the protein expression of CD32 and CD206 in the ischemic cortex. Western blot analysis was conducted to measure the protein expression of IL-6, IL-1β, and IL-10 in the ischemic cortex.
		                        		
		                        			RESULTS:
		                        			Compared with the sham surgery group, the model group showed increased neurological deficit scores and neurobehavioral scores (P<0.01), increased brain infarct volume (P<0.01), increased protein expression of CD32, IL-6, and IL-1β in the ischemic cortex (P<0.01), and decreased protein expression of CD206 and IL-10 in the ischemic cortex (P<0.01). Compared with the model group, both the ESA group and the VitD3 group showed decreased neurological deficit scores and neurobehavioral scores (P<0.01), reduced brain infarct volume (P<0.01), decreased protein expression of CD32, IL-6, and IL-1β in the ischemic cortex (P<0.01), and increased protein expression of CD206 and IL-10 in the ischemic cortex (P<0.01). Compared with the VitD3 group, the ESA group had lower neurological deficit score (P<0.05), larger brain infarct volume (P< 0.05), and lower protein expression of CD32, CD206, IL-1β, and IL-10 in the ischemic cortex (P<0.01, P<0.05).
		                        		
		                        			CONCLUSION
		                        			ESA could improve neurological function in MCAO rats, and its mechanism may be related to promoting microglial M1-to-M2 polarization and alleviating inflammatory damage.
		                        		
		                        		
		                        		
		                        			Male
		                        			;
		                        		
		                        			Animals
		                        			;
		                        		
		                        			Rats
		                        			;
		                        		
		                        			Rats, Sprague-Dawley
		                        			;
		                        		
		                        			Ischemic Stroke
		                        			;
		                        		
		                        			Interleukin-10
		                        			;
		                        		
		                        			Interleukin-6/genetics*
		                        			;
		                        		
		                        			Microglia
		                        			;
		                        		
		                        			Scalp
		                        			;
		                        		
		                        			Acupuncture Therapy
		                        			;
		                        		
		                        			Vitamins
		                        			;
		                        		
		                        			Infarction, Middle Cerebral Artery
		                        			
		                        		
		                        	
4.Treatment of Adult Chronic Insomnia and the Effect of Assisting Benzodiazepine Withdrawl with a Combination of Suanza-oren Decoction and Huanglian Wendan Decoction:A Multicenter,Prospective Cohort Study
Si-Yu YANG ; Xiu-Mei LENG ; Jin LIU ; Wen-Hua XU ; Yong-Gui YUAN ; Li-Xia SUN ; Yong LI ; Zheng-Hua HOU ; Zhi XU ; Heng DAI ; Su-Zhen CHEN ; D.Reinhardt JAN ; Xin-Yu DU ; Xin-Ran XU ; Jin ZHONG ; Jing ZHANG ; Ting WU ; Xiu-Qin WANG
Journal of Nanjing University of Traditional Chinese Medicine 2023;39(12):1224-1231
		                        		
		                        			
		                        			OBJECTIVE To explore the efficacy of Sour Jujube Seed Decoction combined with Huanglian Wendan Decoction on adult chronic insomnia and its effect on hypnotic withdrawal.METHODS 187 patients with chronic insomnia were included for anal-ysis,including 102 in the traditional Chinese medicine(TCM)group and 85 in the western medicine group.The TCM group was trea-ted with Sour Jujube Seed Decoction combined with Huanglian Wendan Decoction,while the western medicine group was treated with benzodiazepine under the consideration of doctor.The intervention period was 1 month,with assessments using the Pittsburgh Sleep Quality Index(PSQI)conducted before and after the intervention.Follow-up evaluations were performed at 3 months and 6 months re-spectively after the intervention.RESULTS There was no significant difference between the two groups at baseline.After the inter-vention,the PSQI scores of patients in both groups were significantly improved(P<0.01).Among them,the TCM group was better than the western medicine group in the improvement of sleep quality and sleeping pills,total PSQI score reduction(P<0.01).The re-sults of linear regression analysis showed that after controlling for confounding factors,the regression coefficients of the TCM group in two different models were1.821 and 1.922 respectively,and the former was statistically significant(P<0.05).By screening patients who took hypnotics at baseline in the TCM group and comparing them with those in the western medicine group,the influencing factors of hypnotic withdrawal were analyzed.During the 3-month follow-up,25 out of 39 patients in the TCM group and 17 out of 80 patients in the western medicine group had hypnotic withdrawal(χ2= 19.25,P<0.001);during the 6-month follow-up,23 of the 39 patients in the TCM group and 18 of the 79 patients in the western medicine group had hypnotic withdrawal(χ2= 13.53,P<0.001),the with-drawal rate of patients in the TCM group was significantly higher than that in the western medicine group.Further regression analysis showed that after adjusting for confounding factors,the results showed that the western medicine group had a significantly higher rate of not withdrawal than the TCM group at 3 months(OR=5.50,95%CI:2.30~13.72)and 6 months(OR=6.43,95%CI:2.54~17.77),and the results were statistically different(P<0.05).CONCLUSION Sour Jujube Seed Decoction combined with Huangli-an Wendan Decoction is effective in treating adult chronic insomnia and assisting in hypnotic withdrawal.
		                        		
		                        		
		                        		
		                        	
5.Functional characterization of SLC12A1 gene variants in 3 patients with Bartter syndrome type Ⅰ.
Yu Gen SHA ; Chun Li WANG ; Zhi Wei DU ; Bi Xia ZHENG ; Wei ZHOU ; Fei ZHAO ; Gui Xia DING ; Ai Hua ZHANG
Chinese Journal of Pediatrics 2022;60(2):129-133
		                        		
		                        			
		                        			Objective: To clarify the molecular basis of patients with Bartter syndrome type I and explore the therapeutic effect of trafficking-defective variations by chemical chaperone 4-Phenylbutyric acid(4-PBA). Methods: The clinical characteristics, laboratory findings and genetic data of 3 patients diagnosed with Bartter syndrome type I who were admitted to Department of Nephrology, Children's Hospital of Nanjing Medical University from 2017 to 2018 were retrospectively analyzed. Wild type and variant SLC12A1 gene constructs were transiently overexpressed in HEK293 cells. Western blotting was used to detect the expression levels of Na+-K+-2Cl-cotransporter(NKCC2) protein. Immunofluorescent staining was applied to investigate the subcellular localization of NKCC2 protein. In addition, the effect of the chemical chaperone 4-PBA on the expression and localization of the SLC12A1 gene variants was investigated. Unpaired t test was used for statistical analysis of 4-PBA treatment. Results: All the 3 patients (2 males and 1 female), aged 3.0, 4.0 and 1.2 years, respectively. All patients had antenatal onset with polyhydramnios and were born prematurely. After birth, all patients presented with hypochlorine alkalosis accompanied by hypokalemia and hyponatremia. Sequencing analysis revealed that the 3 patients were homozygotes or compound heterozygotes for variants in the SLC12A1 gene. In HEK293 cells, the surface expression of NKCC2 in 3 variants (p.L463S, p.L479V, p.507-510del) are all lower than in wild type (0.718±0.039, 0.287±0.081, 0.025±0.156 vs. 1.001±0.028, t=5.92, 8.35, 30.49, all P<0.01). Moreover, the total protein expression of p.L479V and p.507-510del group were all lower than that in wild type group (0.630±0.032, 0.043±0.003 vs. 1.000±0.111, t=3.21, 8.65, all P<0.05). 4-PBA treatment increased the mature protein expression level of the p.L463S and p. L479V group in 4-PBA treatment group are all higher than the untreated group (0.459±0.018 vs. 1.123±0.024, 0.053±0.012 vs. 1.256±0.037, t=2.75, 18.35, all P<0.05). Cytoplasmic retention of the L479V and 507-510del variants were observed by immunofluorescent staining. 4-PBA treatment could rescue a number of NKCC2 L479V variants to the membrane. Conclusions: The 3 SLC12A1 variants cause expression or subcellular localization defects of the protein. The findings that plasma membrane expression and activity can be rescued by 4PBA might help to develop novel therapeutic strategy for Bartter syndrome type Ⅰ.
		                        		
		                        		
		                        		
		                        			Bartter Syndrome/genetics*
		                        			;
		                        		
		                        			Child, Preschool
		                        			;
		                        		
		                        			Female
		                        			;
		                        		
		                        			HEK293 Cells
		                        			;
		                        		
		                        			Homozygote
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Infant
		                        			;
		                        		
		                        			Male
		                        			;
		                        		
		                        			Pregnancy
		                        			;
		                        		
		                        			Retrospective Studies
		                        			;
		                        		
		                        			Solute Carrier Family 12, Member 1/genetics*
		                        			
		                        		
		                        	
6.Comparative Study of the Genetic Diversity, Antimicrobial Resistance, and Pathogenicity of
Shuang MENG ; Xiao Li DU ; Yong Lu WANG ; Feng Tian QU ; Gui Lin XIE ; Hai Jian ZHOU ; Jin Rui HU ; Zheng QIN ; Yue WANG ; Biao KAN ; Zhi Gang CUI
Biomedical and Environmental Sciences 2021;34(6):454-464
		                        		
		                        			Objective:
		                        			This study was performed to compare the genetic diversity, virulence, and antimicrobial resistance of 
		                        		
		                        			Methods:
		                        			A total of 38 clinical strains and 19 strains from healthy individuals were isolated from the samples collected in Ma'anshan City, Anhui Province. Their taxonomy was investigated using concatenated 
		                        		
		                        			Results:
		                        			The 57 
		                        		
		                        			Conclusions
		                        			The taxonomy, virulence properties, and antibiotic resistance of
		                        		
		                        		
		                        		
		                        			Aeromonas/pathogenicity*
		                        			;
		                        		
		                        			Case-Control Studies
		                        			;
		                        		
		                        			Drug Resistance, Bacterial/genetics*
		                        			;
		                        		
		                        			Genetic Variation
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Virulence Factors/genetics*
		                        			
		                        		
		                        	
7.MicroRNAs involved in drug resistance of breast cancer by regulating autophagy.
Nan WEN ; Qing LV ; Zheng-Gui DU
Journal of Zhejiang University. Science. B 2020;21(9):690-702
		                        		
		                        			
		                        			Autophagy is a conserved catabolic process characterized by degradation and recycling of cytosolic components or organelles through a lysosome-dependent pathway. It has a complex and close relationship to drug resistance in breast cancer. MicroRNAs (miRNAs) are small noncoding molecules that can influence numerous cellular processes including autophagy, through the posttranscriptional regulation of gene expression. Autophagy is regulated by many proteins and pathways, some of which in turn have been found to be regulated by miRNAs. These miRNAs may affect the drug resistance of breast cancer. Drug resistance is the main cause of distant recurrence, metastasis and death in breast cancer patients. In this review, we summarize the causative relationship between autophagy and drug resistance of breast cancer. The roles of autophagy-related proteins and pathways and their associated miRNAs in drug resistance of breast cancer are also discussed.
		                        		
		                        		
		                        		
		                        			Autophagy/physiology*
		                        			;
		                        		
		                        			Breast Neoplasms/pathology*
		                        			;
		                        		
		                        			Drug Resistance, Neoplasm
		                        			;
		                        		
		                        			Female
		                        			;
		                        		
		                        			Gene Expression Regulation, Neoplastic
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			MicroRNAs/physiology*
		                        			;
		                        		
		                        			Signal Transduction/physiology*
		                        			
		                        		
		                        	
8.Association between health literacy and smoking status among residents in Wenzhou
Gui-Li YANG ; Lei CHEN ; Xiao-Hong ZHANG ; Hui-Zhen WANG ; Xiao-Lian ZHENG ; Cheng-Du LU ; Nan LIN
Journal of Preventive Medicine 2018;30(3):253-256
		                        		
		                        			
		                        			Objective To assess the residents' health literacy levels and smoking status in national surveillance sites in Wenzhou and to provide scientific basis for tobacco control and thepublic health promotion. Methods Four hundred and eighty residents aged 15 to 69 years in Wenzhou Longwan District and Cangnan County were selected according to multi-stage stratified random sampling method and surveyed by the National Residents' Health Literacy Survey Questionnaire and the National Residents' Tobacco Survey Questionnaire from October 2015 to December 2015. The levels of health literacy were compared among respondents with different smoking behaviors. Results The smoking rate of these residents was 22.63, with the rate of ex-smoker 7.50% and non-smoker 69.17%. The smoking rate of males (36.98%) was higher than that of females (6.95%) (P<0.05) .The overall health literacy level of residents in Longwan District and Cangnan County of Wenzhou was 5.01%. The average score of overall health literacy of smoker was 33.70 ±11.70, with ex-smoker of 28.06 ±11.60 and non-smoker of 33.59 ±11.83. The levels of health literacy of non-smokers and smokers were higher than that of ex-smokers (P<0.05) . Conclusion Residents in Wenzhou had a low level of health literacy. Improving the level of health literacy might positively affect the smoking behaviors.
		                        		
		                        		
		                        		
		                        	
9.Uchl1 and its associated proteins were involved in spermatocyte apoptosis in mouse experimental cryptorchidism.
Ping DU ; sunzgbio@126.com. ; Yu-Wei YAO ; Yan SHI ; Zheng GU ; Jian WANG ; Zhao-Gui SUN ; Jia-Ke ZUO
Acta Physiologica Sinica 2014;66(5):528-536
		                        		
		                        			
		                        			Uchl1 was found to be involved in spermatocyte apoptosis. The aim of the present study was to test whether Uchl1 and its associated proteins Jab1 and p27(kip1) were involved in spermatogenic damages in response to heat-stress in cryptorchidism. Hematoxylin and eosin (HE) staining and DNA end labeling (TUNEL) were used to observe morphological and apoptotic characteristics of spermatogenic cells; Immunohistochemical analysis was used to detect changes of Uchl1 and its associated proteins Jab1 and p27(kip1) in response to heat-stress from cryptorchidism leading to spermatocyte losses; And protein affinity analysis (pull-down) and immunofluorescence co-localization were used to verify the relevance among the three proteins in spermatocytes. The results showed that, Jab1 and p27(kip1), in parallel to Uchl1, increased in spermatocytes of apoptotic appearances in response to heat-stress, but not in multinucleated giant cells; Jab1 bound to Uchl1 in testis protein extracts, and co-localized with Uchl1 and p27(kip1) specifically in spermatocytes with apoptotic appearances. These results suggest that the accumulation of Uchl1 protein is involved in the heat-stress-induced spermatocyte apoptosis through a new pathway related with Jab1 and p27(kip1), but not the formation of multinucleated giant cells.
		                        		
		                        		
		                        		
		                        			Animals
		                        			;
		                        		
		                        			Apoptosis
		                        			;
		                        		
		                        			COP9 Signalosome Complex
		                        			;
		                        		
		                        			Cryptorchidism
		                        			;
		                        		
		                        			pathology
		                        			;
		                        		
		                        			Cyclin-Dependent Kinase Inhibitor p27
		                        			;
		                        		
		                        			metabolism
		                        			;
		                        		
		                        			Hot Temperature
		                        			;
		                        		
		                        			Intracellular Signaling Peptides and Proteins
		                        			;
		                        		
		                        			metabolism
		                        			;
		                        		
		                        			Male
		                        			;
		                        		
		                        			Mice
		                        			;
		                        		
		                        			Peptide Hydrolases
		                        			;
		                        		
		                        			metabolism
		                        			;
		                        		
		                        			Spermatocytes
		                        			;
		                        		
		                        			cytology
		                        			;
		                        		
		                        			metabolism
		                        			;
		                        		
		                        			Stress, Physiological
		                        			;
		                        		
		                        			Ubiquitin Thiolesterase
		                        			;
		                        		
		                        			metabolism
		                        			
		                        		
		                        	
10.Evaluation of coronary artery diameter in normal children by echocardiography and its clinical significance.
Lin ZHENG ; Zhong-Dong DU ; Lan-Zhong JIN ; Fang-Yun WANG ; Gui-Qin MA ; Hai-Yan WEI ; Xin ZHANG
Chinese Journal of Pediatrics 2013;51(5):371-376
OBJECTIVETo obtain normal range of coronary artery diameter with body surface area (BSA) dynamic changes in normal children at different age.
METHODThe left main coronary artery (LCA), left anterior descending artery (LAD), left circumflex artery (LCX) and the right coronary artery (RCA) diameter were measured in 400 normal subjects from Chinese population aged 0 d to 18 years [(6.43 ± 4.45) years], using HP Sonos 5500 color Doppler ultrasonic system, according to the standard method of measuring the coronary artery diameter.
RESULT(1) The diameters of LCA, LAD, LCX and RCA in different age groups (0 d-12 months, -3 years, -6 years, -9 years, -12 years, -18 years) had significant differences (F = 61.688, 51.343, 46.375, 50.192, P < 0.01,all groups mean differences had significant differences, there was significant difference between every two groups, P < 0.05), there were no significant differences between male and female subjects (P > 0.05). (2) The correlation analyses showed that the diameter of LCA, LAD, LCX and RCA had significant linear correlations with age, height, weight and BSA (r ranged from 0.71 to 0.85, P < 0.01 ). (3) The regression analyses were respectively performed on the diameters of LCA, LAD, LCX and RCA with BSA to establish seven regression models. The coefficients were compared for each model, the best model was chosen to create a Z score calculator, tracing out the Z value curve, through clinical practice,we chose Z score within ± 2 as the coronary artery diameter's normal range for Chinese children.
CONCLUSIONCoronary artery diameter's Z score curve is effective and reliable, it provide objective basis for clinicians and sonographers to accurately and quickly diagnose the anomalies in diameter of coronary artery.
Adolescent ; Age Factors ; Aorta ; diagnostic imaging ; Body Height ; Body Surface Area ; Body Weight ; Child ; Child Development ; physiology ; Child, Preschool ; Coronary Vessels ; diagnostic imaging ; growth & development ; Echocardiography, Doppler ; methods ; Female ; Humans ; Infant ; Infant, Newborn ; Male ; Mucocutaneous Lymph Node Syndrome ; diagnostic imaging ; Reference Values ; Regression Analysis ; Validation Studies as Topic
            
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