1.Cephalometric study of facial morphology and hyoid bone position in children with obstructive sleep apnea syndrome
Liping PAN ; Jing ZHANG ; Hongyan LIN ; Ke ZHANG ; Lingyun ZHANG ; Shuai LIU
Journal of Clinical Medicine in Practice 2024;28(2):88-91
		                        		
		                        			
		                        			Objective To analyze the results of cephalometric indicators of facial morphology and hyoid bone position in children with obstructive sleep apnea syndrome (OSAS). Methods A total of 78 children with OSAS were randomly selected and included in OSAS group. Another 78 healthy children who had not received otolaryngology, orthodontics or speech therapy were selected as healthy control group. Children in both groups underwent otolaryngology evaluation and cephalometric measurement, and the OSAS group also underwent overnight polysomnography (PSG) examination. Results The cephalometric measurement results of the facial shape showed that the facial anterior height (N-Me) and facial anterior inferior height (ANS-Me) in the OSAS group were higher than those in the healthy control group (
		                        		
		                        	
2.Ultrasonographic diagnosis and prognosis of transposition of the great arteries at 11-13 + 6 weeks gestation
Shuihua YANG ; Mengfeng LIANG ; Xinnian PAN ; Guican QIN ; Yulan PANG ; Zuojian YANG ; Suli LUO ; Feiwen LONG ; Yanni TANG ; Yan LIANG ; Guidan HE ; Yanhe LUO ; Xinyan LI ; Lingyun FAN ; Yongkang LI
Chinese Journal of Ultrasonography 2023;32(3):198-204
		                        		
		                        			
		                        			Objective:To investigate the value of ultrasonography in diagnosis of transposition of great arteries of the fetus at 11-13 + 6 weeks gestation. Methods:A prospective study was conducted on fetuses screened by ultrasound in the first trimester in Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region between January 2015 and March 2022. Fetal heart structure was screened by three-section screening method. Fetuses with suspected transposition of the great arteries at 11-13 + 6 weeks gestation underwent followed-up ultrasound examination, chromosome and gene test results. The ultrasound characteristics and prognosis pregnancy outcomes were summarized. Results:Twenty-one cases of transposition of the great arteries were detected by ultrasonography, including complete transposition of great arteries (20 cases) and congenitaly corrected transposition of the great arteries (1 case). Two cases were miss diagnosed. Twenty-one cases showed parallel signs of two major arteries on grayscale outflow section at 11-13 + 6 weeks gestation. There were 6 cases with aneuploid ultrasonographic soft markers abnormality, 2 cases with extracardiac malformation. Chromosome and microarray analysis were performed in 13 cases. 4 cases with chromosomal abnormality. Four cases of chromosomal abnormalities were associated with ultrasonographic soft markers abnormality, and 1 case with extracardiac malformation.In the 23 cases, 20 cases were induced, 1 miscarried, and 2 delivered to term. Among the fetuses delivered at term, 1 case died before neonatal operation and 1 case survived. Conclusions:Standardized ultrasound scan at 11-13 + 6 weeks has high accuracy in diagnosis of transposition of the great arteries. And the incidence of chromosomal abnormality is high with ultrasonographic soft markers abnormality or extracardiac malformation.
		                        		
		                        		
		                        		
		                        	
3.Detection and evaluation of the signals of amlodipine and lercanidipine based on FAERS database
Guizun ZHONG ; Ni ZHANG ; Hongli WANG ; Siqi CHEN ; Li GONG ; Lingyun PAN ; Yuntao JIA
China Pharmacy 2022;33(21):2647-2653
		                        		
		                        			
		                        			OBJECTIVE To detect and evaluate the signals of amlodipine and lercanidipine -induced adverse drug events (ADE). METHODS All ADE reports about “amlodipine”and“lercanidipine”were searched from FAERS database during Jan . 1st,2004 to Sept . 30th,2021. Reported odds ratio and Bayesian confidence propagation neural network were used to detect ADE signals. The moderately strong signals and strong signals in key systems were selected for analysis . RESULTS From FAERS database,249 657 and 10 558 reports were extracted with amlodipine and lercanidipine as suspect drugs ,respectively. In this study,62 and 58 signals related to amlodipine and lercanidipine were detected respectively . At the same time ,moderately strong signals of peripheral edema , hypotension, orthostatic hypotension and hypovolemic shock were detected in the twodrugs,all of which were common adverse reactions of the two drugs. The special ADEs detected in this study were as follows: in the respiratory system , chest and mediastinaldisease system ,strong signals of non -cardiogenic pulmonary edema were detected for amlodipine ,and strong signals of dyspnea at rest for lercanidipine ;in gastrointestinal diseases ,strong signals of gingival hypertrophy were detected only for amlodipine;in skin and subcutaneous tissue disease system ,moderately strong signals related to “vasculitis”were detected for both drugs,moderately strong signals related to linear IgA disease were detected for amlodipine ,and moderately strong signals related to bullous dermatitis were detected for lercanidipine ;in the renal and urinary system disease system ,the signals of acute renal injury were detected for both drugs (amlodipine was detected as a moderately strong signal ,and lecardipine was detected as a strong signal ); in the mental system ,moderately strong signals related to suicide were detected for amlodipine . Both hypotension and acute renal injury ranked in the top two in the number of reports of the two drugs . The time scan results of the information component (IC)of this study showed that the IC values of non -cardiogenic pulmonary edema and suicide completion signals of amlodipine increased from 0.76,-0.49 to 4.48 and 1.95 respectively,and the confidence intervals narrowed from (-0.44,1.97),(-1.01,0.03)to (4.24,4.72)and(1.90,2.01)respectively during 2004 to 2021,suggesting that the signals kept stable . CONCLUSIONS The risks of peripheral edema ,hypotension,arrhythmia,pulmonary edema ,gingival hyperplasia ,skin related ADE ,acute renal injury , depression and suicide should be alert when using amlodipine and lercanidipine in clinic .
		                        		
		                        		
		                        		
		                        	
4.Analysis of β-blockers associated with acute renal failure signal based on data mining method
Hongli WANG ; Ni ZHANG ; Guizun ZHONG ; Siqi CHEN ; Huanhuan JI ; Li GONG ; Lingyun PAN ; Yuntao JIA
China Pharmacy 2022;33(11):1380-1385
		                        		
		                        			
		                        			OBJECTIVE To excavate and evaluate β-blockers associated with acute renal failure(ARF)signal. METHODS Using the report odds ratio (ROR)method and Bayesian confidence interval progressive neural network (BCPNN)method,signal detection and analysis were performed for 4 kinds of β-blockers(metoprolol,bisoprolol,atenolol,nebivolol)associated with ARF Δ 基金项目:重庆市临床药学重点专科建设项目 (No.渝卫办发 in FDA adverse event reporting system (FAERS)from the two 〔2020〕68号);重庆医科大学未来医学青年创新团队发展支持计划项 dimensions of Standard International Dictionary of Medical 目(No.W0081) Terms (MedDRA) analysis query (SMQ) term set and *药师,硕士研究生。研究方向:药物警戒。电话:023-68485161。 preferred term (PT) level terms. When the two methods E-mail:2020121624@stu.cqmu.edu.cn detected positive signals at the same time ,it indicated that # 通信作者:主任药师,硕士生导师。研究方向:临床药学、药物警 suspicious signals were detected. RESULTS Totally 14 328 戒。电话:023-63625666。E-mail:jiayuntaomail@hospital.cqmu.edu.cn ARF reports of 4 kinds of β-blockers were retrieved within the ·1380· China Pharmacy 2022Vol. 33 No. 11 中国药房 2022年第33卷第11期 narrow sense of “acute renal failure ”in SMQ term set ,of which men (6 964)were more than women (6 206). The age of patients was mainly concentrated in the middle-aged and elderly (≥45 years old ),and serious adverse events accounted for 77.23%. The results of signal retrieval based on SMQ term set showed that ROR values and 95% confidence intervals of metoprolol ,bisoprolol, atenolol and nebivolol detected by ROR method were 2.58(2.51,2.65),5.30(5.14,5.47),2.80(2.69,2.91)and 3.28(3.04, 3.53)respectively. The signal components (IC)detected by BCPNN method and the lower limit of IC were 1.29(1.25),2.26 (2.22),1.42(1.36)and 1.64(1.53)respectively,suggesting suspicious signals were detected in these four kinds of β-blockers associated ARF. The results of signal detection based on PT level terms showed that 37 positive signals were detected by ROR method,38 positive signals were detected by BCPNN method ,and 36 suspicious signals were detected by the two methods at the same time. For each drug ,12 suspicious signals of metoprolol were detected at the same time ,9 suspicious signals of bisoprolol and atenolol were detected at the same time ,and 6 suspicious signals of nebivolol were detected at the same time ;the number and type of signals were different among the 4 kinds of drug. CONCLUSIONS Four kinds of β-blockers may cause ARF. Compared with metoprolol and atenolol ,bisoprolol and nebivolol have strong statistical correlation with ARF ,suggesting that medical personnel should pay attention to the possible renal related adverse reactions of these drugs in the process of clinical use.
		                        		
		                        		
		                        		
		                        	
5.Advances of salt stress-responsive transcription factors in plants.
Lingyun PAN ; Jiaji MA ; Jianmin LI ; Bingbing YIN ; Chang FU
Chinese Journal of Biotechnology 2022;38(1):50-65
		                        		
		                        			
		                        			Salt stress may cause primary osmotic stress and ion toxicity, as well as secondary oxidative stress and nutritional stress in plants, which hampers the agricultural production. Salt stress-responsive transcription factors can mitigate the damage of salt stress to plants through regulating the expression of downstream target genes. Based on the soil salinization and its damage to plants, and the central regulatory role of transcription factors in the plant salt stress-responsive signal transduction network, this review summarized the salt stress-responsive signal transduction pathways that the transcription factors are involved, and the application of salt stress-responsive transcription factors to enhance the salt tolerance of plants. We also reviewed the transcription factors-regulated complex downstream gene network which is formed by forming homo- or heterodimers between transcription factors and by forming complexes with regulatory proteins. This paper provides a theoretical basis for understanding the role of salt stress-responsive transcription factors in the salt stress regulatory network, which may facilitate the molecular breeding for improved stress resistance.
		                        		
		                        		
		                        		
		                        			Gene Expression Regulation, Plant
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		                        			Osmotic Pressure
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		                        			Plant Proteins/metabolism*
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		                        			Plants, Genetically Modified
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		                        			Salt Stress
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		                        			Salt Tolerance
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		                        			Stress, Physiological
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		                        			Transcription Factors/metabolism*
		                        			
		                        		
		                        	
6.Correlation between the distribution of intracranial and extracranial aterial lesions and risk factors in Chinese patients with ischemic stroke :a multicenter registry study
Yu TANG ; Lingyun JIA ; Yingqi XING ; Pinjing HUI ; Xuan MENG ; Delin YU ; Xiaofang PAN ; Yalan FANG ; Binbin SONG ; Chunxia WU ; Chunmei ZHANG ; Xiufang SUI ; Youhe JIN ; Jingfen ZHANG ; Jianwei LI ; Ling WANG ; Yuming MU ; Jingxin ZHONG ; Yuhong ZHU ; Heng ZHANG ; Xiaoyu CAI ; Yang HUA
Chinese Journal of Ultrasonography 2019;28(5):369-374
		                        		
		                        			
		                        			Objective To investigate the distribution characteristics and risk factors of intracranial and extracranial aterial lesions in Chinese patients with ischemic stroke . Methods In this multi‐center study ,2 310 continuously inpatients with ischemic stroke diagnosed in 20 stroke screening and prevention project base hospitals from June 2015 to M ay 2016 were enrolled . Carotid ultrasonography and transcranial color‐coded sonography or transcranial Doppler were performed in all patients to confirm the presence of cerebral artery stenosis or occlusion . According to the distribution of lesions ,the subjects were divided into 2 groups :the simple intracranial artery stenosis group and the simple extracranial artery stenosis group . T he difference of risk factors between the two groups was compared . Results Of the 2 310 patients with ischemic stroke ,1 516 ( 65 .6% ) had simple intracranial artery stenosis and 794 ( 34 .4% ) had simple extracranial artery stenosis . T he incidence of anterior circulation artery stenosis was higher in the group of intracranial artery stenosis than that in the extracranial artery stenosis group ( 68 .1% vs 48 .7% , P <0 .001) . Posterior circulation artery stenosis and combined anterior with posterior circulation artery stenosis were more common in patients with extracranial artery stenosis group than those in intracranial artery stenosis group ( 36 .4% vs 22 .1% ,14 .9% vs 9 .8% ;all P <0 .001) . Univariate analysis of risk factors for stroke showed that patients with intracranial arterial stenosis had a higher prevelence of hypertension , diabetes ,obesity ,and family history of stroke ,and their systolic blood pressure ,diastolic blood pressure , body mass index ( BM I) ,fasting blood‐glucose ,glycosylated hemoglobin ,triacylglycerol ,total cholesterol , and low‐density lipoprotein cholesterol were significantly higher than those in the extracranial arterial stenosis group ( all P < 0 .05 ) . T he proportion of elderly ( ≥ 65 years old ) ,male and smokers in the extracranial arterial stenosis group was significantly higher than that in the intracranial arterial stenosis group ( all P <0 .05) . Multivariate logistic regression analysis showed that elderly ( ≥65 years old) ,male , and smoking history were independent risk factors for extracranial arterial stenosis ( OR= 2 .012 ,1 .637 , 1 .325 ,respectively ;all P <0 .05) . While hypertension ,diabetes ,less physical activity ,and high BM I levels were independent risk factors for simple intracranial arterial disease ( OR = 1 .301 ,1 .252 ,1 .248 ,1 .030 , respectively ;all P <0 .05) . Conclusions There are significant differences in the distribution characteristics and risk factors of intracranial and extracranial aterial lesions in patients with ischemic stroke in China .
		                        		
		                        		
		                        		
		                        	
7.A high risk factors clinical study of low birth weight premature infants with wheezing
Jin GAO ; Dongmei YE ; Xiaojie PAN ; Mei ZHAO ; Lingyun BAO ; Ming LI ; Lin WANG ; Chengqing WU
Chinese Journal of Applied Clinical Pediatrics 2018;33(2):120-123
		                        		
		                        			
		                        			Objective To investigate the high risk factors for wheezing of low birth weight premature infants with wheezing.Methods A cohort study of 143 premature infants,whose gestation less than 37 weeks and birth weight less than 2 500 g,were collected from Neonatal Intensive Care Unit of Kunming Children's Hospital,from December 2012 to November 2013.Follow-up investigation was conducted,and those with wheezing were enrolled in the study.Many possible factors causing wheezing were analyzed,such as general conditions in the neonatal period,family conditions,and treatment.SPSS 17.0 statistical software was used to analyze the data.Single factor analysis was used by x2 test and rank sum test to evaluate the possible risk factors.Multiple factors analysis was made by Logistic regression analysis.P < 0.05 was viewed as having statistical difference.Results (1) The risk factors for wheezing in the premature infants were:continuous positive airway pressure (CPAP) noninvasive ventilation (x2 =8.531,P =0.003),ventilation (x2 =4.800,P =0.028),caesarean section (x2 =6.787,P =0.009),the use of pulmonary surfactant (x2 =5.455,P =0.020),using antibiotics used at hospital (x2 =5.192,P =0.023),father smoking(x2 =5.406,P =0.020),maternal smoking (x2 =8.531,P =0.003),maternal allergic history (x2 =8.297,P =0.004),compatriot history of allergies (x2 =8.297,P =0.004) or asthma (x2 =9.774,P =0.002),family environment with dust and excitant gas (x2 =12.831,P =0.000) were the risk factors for the wheezing in the low birth weight premature infants.(2)Multi-factor classification Logistic regression analysis showed that CPAP (OR =58.414,95 % CI:3.317-1 028.646,P =0.005),mother smoking during pregnancy (OR =11.953,95 % CI:1.309-109.120,P =0.028),compatriot history of allergies (OR=135.769,95% CI:4.914-3 751.419,P =0.004),family environment(OR =83.738,95% CI:4.416-1 587.982,P =0.003),were independent risk factors for wheezing in low birth weight premature infants;natural labor was protective factor for wheezing in low birth weight premature infants (OR =0.045,95% CI:0.004-0.574,P =0.017).(3)The sensitivity and specificity of risk factors were analyzed.The highest sensitivity was estimated for the father's history of allergy(83.3%).The highest specificity was estimated for the use of antibiotics at hospital (76.7%).Conclusions The study shows that CPAP noninvasive ventilation,mother smoking during pregnancy,allergy history of their brothers and sisters,family environment with dust and excitant gas are independent risk factors for wheezing in the low birth weight premature infants.There is no single risk factor with both high sensitivity and high specificity.
		                        		
		                        		
		                        		
		                        	
8.Correlation between smoking and occurrence of intracranial artery stenosis by ultrasonography:an analysis of multi-center research results
Ran LIU ; Yang HUA ; Lingyun JIA ; Yingqi XING ; Pinjing HUI ; Xuan MENG ; Delin YU ; Xiaofang PAN ; Yalan FANG ; Binbin SONG ; Chunxia WU ; Chunmei ZHANG ; Xiufang SUI ; Youhe JIN ; Jingfen ZHANG ; Jianwei LI ; Ling WANG ; Yuming MU ; Jingxin ZHONG ; Yuhong ZHU ; Heng ZHANG ; Xiaoyu CAI
Chinese Journal of Cerebrovascular Diseases 2017;14(6):297-301,312
		                        		
		                        			
		                        			Objective To analyze the correlation between smoking and occurrence of intracranial artery stenosis.Methods From June 2015 to May 2016,a total of 10 711 inpatients with transient ischemic attack (TIA) or ischemic stroke from 20 basel hospitals of nationwide were enrolled using a cross-sectional study,76 patients with unknown smoking and smoking cessation years were excluded.Finally,a total of 10 635 patients were enrolled.Transcranial color coded sonography and/or transcranial Doppler were used evaluate the intracranial artery stenosis lesions.The basic risk factors for cerebrovascular disease (age,sex,smoking and smoking years,whether smoking cessation and years,hypertension,diabetes,hyperlipidemia,atrial fibrillation,and family history of stroke) were recorded.According to the different smoking years,the smoking years were divided into five groups:non-smoking,smoking time ≤10-year,11 to 20-year,21 to 30-year,and >30-year groups for trend chi square test.According to the different smoking cessation years in the smokers,the smoking cessation years were divided into four groups:non-cessation,cessation time 1 to 10-year,11 to 20-year,and >20-year groups for trend chi square test.The effects of different smoking years and different smoking cessation years on the occurrence of intracranial arterial stenosis were analyzed.Results The incidence of intracranial artery stenosis in the smokers (40.4%[1 433/3 547]) was significantly higher than that in the non-smoking patients (29.4%[2 085/7 088]).There was significant difference (χ2=128.850,P<0.01),and the incidence of cerebral infarction in the smokers (91.6%[3 250/3 547]) was significantly higher than the non-smokers (85.0%[6 027/7 088]).There was significant difference (χ2=92.328,P<0.01).Smoking was an independent risk factor for intracranial artery stenosis (OR,1.603;95%CI 1.456-1.765;P<0.01).With the increase of smoking years,the detection rate of intracranial arterial stenosis increased gradually (trend χ2=115.437,P<0.01).Whether giving up smoking had no significant effect on the incidence of intracranial artery stenosis in patients with ≥20 years of smoking (trend χ2=1.043,P=0.307).Conclusions Smoking is an independent risk factor for affecting intracranial artery stenosis;the risk of disease increases with the number of smoking years.Long-term smokers (≥20 years) cannot reduce the effect on intracranial artery stenosis,even if they give up smoking.
		                        		
		                        		
		                        		
		                        	
9.Correlation between serum lipid level and carotid artery stenosis in patients with ischemic cerebrovascular disease:a multi-center registry study
Yunlu TAO ; Yang HUA ; Lingyun JIA ; Yingqi XING ; Pinjing HUI ; Xuan MENG ; Delin YU ; Xiaofang PAN ; Yalan FANG ; Binbin SONG ; Chunxia WU ; Chunmei ZHANG ; Xiufang SUI ; Youhe JIN ; Jingfen ZHANG ; Jianwei LI ; Ling WANG ; Yuming MU ; Jingxin ZHONG ; Yuhong ZHU ; Heng ZHANG ; Xiaoyu CAI
Chinese Journal of Cerebrovascular Diseases 2017;14(6):292-296
		                        		
		                        			
		                        			Objective To investigate the effect of serum lipid level on carotid artery stenosis in patients with ischemic cerebrovascular disease.Methods Using a multi-center cross-sectional study,10 711 consecutive inpatients with transient ischemic attack (TIA) or ischemic stroke diagnosed clearly in 20 stroke screening and prevention project base hospitals from June 2015 to May 2016 were enrolled.According to the results of carotid ultrasonography,1 560 patients with extracranial carotid artery stenosis rate≥50% screened were enrolled in the study.They were divided into a severe stenosis group (70%-99%) and a mild-moderate stenosis group (<70%).The distribution of total cholesterol (TC),triacylglycerol (TG),low-density lipoprotein cholesterol (LDL-C) and high-density lipoprotein cholesterol (HDL-C) levels in both groups of carotid stenosis patients were analyzed,and the quantitative classification was based on the normal range of serum lipids.The distributions of serum lipid levels in different grades in patients of both groups were compared with the non-parameter test.Results The incidence of dyslipidemia in the severe stenosis group was higher than that in the mild and moderate stenosis group.There was no significant difference between the two groups (54.4%[319/586]vs.48.3%[470/974],P<0.05).Dyslipidemia was an independent risk factor for severe carotid artery stenosis (OR,1.27,95% CI 1.24-1.30,P<0.01).The TC and LDL-C levels in patients of the severe stenosis group were significantly higher than those in the mild-moderate stenosis group (TC:3.98[3.31,4.82]mmol/L vs.3.91[3.31,4.53]mmol/L,LDL-C:2.48[1.86,3.14]vs.2.30[1.79,2.80];all P<0.01).With the increase of TC and LDL-C levels,there was significant differences between the severe stenosis group and the mild-moderate stenosis group (all P<0.05),and the proportions of TC >5.80 mmol/L (7.3%[43/586]vs.0.4%[4/974]) and LDL-C>3.12 mmol/L (26.3%[154/586]vs.10.0%[97/974]) in patients of the severe stenosis group were higher than those in the mild-moderate stenosis group (26.3%[154/586]vs.10.0%[97/974]).Conclusion The high LDL-C and TC levels may increase the incidence of severe carotid artery stenosis or occlusion.
		                        		
		                        		
		                        		
		                        	
10.Age characteristics and distribution of cerivocerebral large artery lesions in inpatients with cerebral ischemia:an analysis of multi-center research results
Na LI ; Yang HUA ; Lingyun JIA ; Yingqi XING ; Pinjing HUI ; Xuan MENG ; Delin YU ; Xiaofang PAN ; Yalan FANG ; Binbin SONG ; Chunxia WU ; Chunmei ZHANG ; Xiufang SUI ; Youhe JIN ; Jingfen ZHANG ; Jianwei LI ; Ling WANG ; Yuming MU ; Jingxin ZHONG ; Yuhong ZHU ; Heng ZHANG ; Xiaoyu. CAI
Chinese Journal of Cerebrovascular Diseases 2017;14(6):285-291
		                        		
		                        			
		                        			Objective To investigate the differences of distribution characteristics and risk factors of large artery lesions in patients with ischemic cerebrovascular disease in different age groups in order to provide the basis for the prevention and treatment of stroke in different age groups.Methods From June 2015 to May 2016,a total of 10 711 consecutive inpatients with transient ischemic attack (TIA) and ischemic stroke from 20 centers nationwide were enrolled.Each 10 years was used as an age group from 40 years.All the patients were divided into 5 age groups.The differences of the different risk factors for cerebrovascular disease among the 5 groups were compared.All patients were separated by gender.The chi square test was used to compare the incidences of large artery stenosis of the intracranial and external and anterior and posterior circulation,and the number of vascular lesions in the same sex in different age groups.Results (1) The risk factors of elderly patients were mainly hypertension,diabetes mellitus,and atrial fibrillation (χ2=61.938,χ2=13.349,and χ2=55.940;all P<0.01).The smoking history,family history of cerebrovascular disease,and obesity were more frequent among the young and middle-aged people (χ2=131.505,χ2=7.298,and χ2=100.911,all P<0.01).(2) The linear trend chi square test results showed that the proportion of multivessel diseases in female and male extracranial arterial lesions increased gradually with the increase of age.(χ2=54.799,χ2=161.370,all P<0.01).The proportion of multivessel diseases in the intracranial artery in female decreased gradually (χ2=5.328,P=0.021),and that in male did not have obvious trend of change (χ2=0.289,P=0.591).(3) The linear trend chi square test results showed that the incidence of simple intracranial arterial stenosis in female and male intracranial arterial stenosis decreased gradually with the increase of age (χ2=20.090,χ2=42.351,all P<0.01),and the incidence of simple extracranial arterial stenosis increased gradually (χ2=40.311,χ2=90.698,all P<0.01).The incidence of both intracranial and extracranial artery stenoses increased gradually (χ2=12.077,χ2=45.887,all P<0.01).The incidence of simple posterior circulation vascular stenosis increased gradually in female (χ2=16.434,P<0.01),but that did not have obvious trend of change in male (χ2=1.701,P=0.192).The incidence of stenosis of both anterior and posterior arteries in female and male increased gradually (χ2=4.587,P=0.032;χ2=35.156,P<0.01).Conclusions The distribution of atherosclerotic lesions in ischemic cerebrovascular disease of the different age groups was different.No matter female or male patients,the majority of the young and middle-aged patients were intracranial artery lesions,and the elderly patients were mainly extracranial artery lesions.The majority of elderly women had posterior circulation artery lesions.Understanding the characteristics in patients with intracranial arterial lesion in different age groups will help to develop individualized stroke prevention and treatment strategies for the population of different age groups.
		                        		
		                        		
		                        		
		                        	
            

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