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Interaction between hydrogen sulfide/cystathionine γ-lyase and carbon monoxide/heme oxygenase pathways in aortic smooth muscle cells

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Acta Pharmacologica Sinica 2006年第12期27卷 1561-1566页

作者： hong-fang {2.~2.jun-bao du~(2.4)Xiao-hui LI~2.yan-fei wang~2.Yin-fang LIANG~2.chao-shu {12.~3 2.department of pediatrics,peking University first hospital,beijing 100034,china 3 Institute of Cardiovascular Research,peking University first hospital,beijing 100034,china department of pediatrics Peking University First Hospital Beijing 100034 China.

Aim:To investigate the interaction between hydrogen sulfide（H2.）/cystathion-ine γ-lyase（CSE）and carbon monoxide（CO）/heme oxygenase（HO）pathways inaortic smooth muscle cells（ASMC）.Methods:The ASMCs were divided into thefollowing groups:（1）the control group;（2.the zinc protoporphyrin（ZnPP）2.μmol/L group;（3）the propargylglycine（PPG）2.mmol/L,4 mmol/L and 10 mmol/Lgroups;and（4）the sodium hydrosulfide（NariS）1×10-5mol/L,1×10-4mol/L and1×10-3mol/L *** of the groups was further divided into 6h,12.,18hand 2.h *** CO level,represented by carboxyhemoglobin（HbCO）content was measured using a spectrophotometric method and H2. content wasdetected by a sensitive electrode *** and HO-1 expressions were de-tected by Western ***:The H2. content in the medium and CSEexpression by ASMC were markedly increased by ZnPP compared with the con-trol *** content in the medium and HO-1 expression by the ASMCstarted strengthening following 2.h treatment with PPG at 2.mmol/L,but werefurther strengthened following 18h and 2.h treatment with PPG at 4 mmol/Lcompared with the controls（P2. ***,NariS at 1×10-5mol/L and 1×10-4mol/Ldecreased the HbCO level in the medium and HO-1 expression by the ASMC after6h and 12. treatment,while NariS at 1×10-3mol/L decreased them at all timepoints of the ***:The results suggested that endogenousCO/HO and H2./CSE pathways inhibited each other in ASMC under physiologi-cal conditions.

关键词： hydrogen sulfide cystathionine γ-lyase carbon monoxide heme oxygenase

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Nitric oxide modulates hypoxic pulmonary smooth muscle cell proliferation and apoptosis by regulating carbon monoxide pathway

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Acta Pharmacologica Sinica 2007年第1期28卷 28-35页

作者： yan-fei wang~2.hong tian~2.chao-shu tang~(3,4) hong-fang jin~2.jun-bao du~(2,4,5)2.department of pediatrics,peking University first hospital,beijing 100034,china 3 Institute of Cardiovascular Diseases,peking University first hospital,beijing 100034,china,4 Key Laboratory of Molecular Cardiovascular Diseases,Ministry of Education,beijing 100034,china departmentofpediatrics PekingUniversityFirstHospitalBeijing100034China InstituteofCardiovascularDiseases PekingUniversityFirstHospitalBeijing100034China KeyLaboratoryofMolecularCardiovascularDiseases MinistryofEduc

Aim:To explore the role of carbon monoxide(CO)in the regulation of hypoxicpulmonary artery smooth muscle cell(PASMC)proliferation and apoptosis bynitric oxide(NO).Methods:PASMC of Wistar rats was cultured in vitro in thepresence of a NO donor,sodium nitroprusside,or an inhibitor of heine oxygenase(HO),zinc protoporphyrin-IX,or under both normoxic and hypoxic *** and carboxyhemoglobin in PASMC medium were detected *** proliferating and apoptotic percentage of PASMC wasmeasured by flow *** expression of HO-1 mRNA in PASMC wasanalyzed by fluorescent real-time quantitative PCR,and the proliferating cell nuclearantigen and caspase-3 were examined by immunocytochemical ***:The results showed that hypoxia suppressed NO generation from PASMC,whichpromoted hypoxic PASMC proliferation and induced ***,hy-poxia induced HO-1 expression in PASMC and promoted CO production fromPASMC,which inhibited PASMC proliferation and regulated PASMC *** upregulated the expression of HO-1 mRNA in hypoxic PASMC;NO also inhib-ited proliferation and promoted apoptosis of hypoxic PASMC,possibly by regu-lating the production of ***:The results indicated that CO couldinhibit proliferation and regulate apoptosis of PASMC,and NO inhibited prolifera-tion and promoted apoptosis of hypoxic PASMC,possibly by regulating the pro-duction of CO.

关键词： hypoxia proliferation apoptosis carbon monoxide nitric oxide

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Hydrogen sulfide and vascular relaxation

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Chinese Medical Journal 2011年第22期124卷 3816-3819页

作者： SUN yan tang {2.-shu du jun-bao jin hong-fang department of pediatrics {2. University first hospital Beiiing 100034 China

Objective To review the vasorelaxant effects of hydrogen sulfide （H2.） in arterial rings in the cardiovascular system under both physiological and pathophysiological conditions and the possible mechanisms involved. Data sources The data in this review were obtained from Medline and Pubmed sources from 1997 to 2.11 using the search terms ＂hydrogen sulfide＂ and ＂vascular relaxation＂. Study selection Articles describing the role of hydrogen sulfide in the regulation of vascular activity and its vasorelaxant effects were selected. Results H2. plays an important role in the regulation of cardiovascular tone. The vasomodulatory effects of H2. depend on factors including concentration, species and tissue type. The H2. donor, sodium hydrosulfide （NariS）, causes vasorelaxation of rat isolated aortic rings in a dose-dependent manner. This effect was more pronounced than that observed in pulmonary arterial rings. The expression of KATp channel proteins and mRNA in the aortic rings was increased compared with pulmonary artery rings. H2. is involved in the pathogenesis of a variety of cardiovascular diseases. Downregulation of the endogenous H2. pathway is an important factor in the pathogenesis of cardiovascular diseases. The vasorelaxant effects of H2. have been shown to be mediated by activation of KATP channels in vascular smooth muscle cells and via the induction of acidification due to activation of the Cr/HCO3 exchanger. It is speculated that the mechanisms underlying the vasoconstrictive function of H2. in the aortic rings involves decreased NO production and inhibition of cAMP accumulation. Conclusion H2. is an important endogenous gasotransmitter in the cardiovascular system and acts as a modulator of vascular tone in the homeostatic regulation of blood pressure.

关键词： hydrogen sulfide, vasorelaxing effects cardiovascular system

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Body mass index is a promising predictor of response to oral rehydration saline in children with vasovagal syncope

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Chinese Medical Journal 2021年第4期134卷 463-468页

作者： Chun-yan Tao Selena Chen Xue-Ying Li chao-{2. tang jun-bao du hong-fang jin department of pediatrics Peking University First HospitalBeijing 100034China Research Unit of Clinical Diagnosis and Treatment of Pediatric Syncope and Cardiovascular Diseases Chinese Academy of Medical SciencesBeijing 100730China Division of Biological Sciences University of CaliforniaSan DiegoCA 92093USA department of Medical Statistics Peking University First HospitalBeijing 100034China department of Physiology and Pathophysiology Peking University Health Science CenterBeijing 100191China

Background:Vasovagal syncope(VVS)greatly impairs quality of *** therapeutic efficacy of oral rehydration saline(ORS)for unselected VVS patients is not satisfactory due to the diverse mechanisms of the *** mass index(BMI)was demonstrated to reflect blood volume to a certain ***,the present study explored the capability of BMI to predict the therapeutic response of children with VVS to ORS ***:Seventy-four children with VVS who visited the Syncope Unit of pediatrics at {2. University first hospital from November 2.10 to june 2.19 receiving ORS treatment were enrolled for this retrospective case-control study.A comparison of demographic,clinical,and hemodynamic characteristics was performed between responders and *** correlation between baseline BMI and response time was *** determine the value of baseline BMI in predicting the therapeutic efficacy of ORS in children with VVS,a receiver operating characteristic curve analysis was ***:Fifty-two children were identified as responders,and the remaining 2. children were identified as *** baseline BMI of the responders was much lower than that of the non-responders(16.4[15.5,17.8]kg/m2.s.2..7±3.6 kg/m2.P2.6,95%confidence interval[CI]:0.067-0.439,P=0.02.).The area under the receiver operating characteristic curve of baseline BMI was 0.818(95%CI:0.704-0.932.P2.yielded a sensitivity of 83%and a specificity of 73%to predict the efficacy of ORS in ***:Prior to treatment,baseline BMI is a promising predictor of response to ORS in children with VVS.

关键词： Vasovagal syncope Oral rehydration saline Body mass index Therapeutic response

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Management of orthostatic intolerance in children: the state of the art

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World Journal of pediatrics 2020年第6期16卷 543-548页

作者： Chun-yan Tao hong-{2. jin jun-bao du department of pediatrics Peking University First HospitalNo.1Xi'an-men StreetWest DistrictBeijing 100034China Research Unit of Clinical Diagnosis and Treatment of Pediatric Syncope and Cardiovascular Diseases Chinese Academy of Medical SciencesBeijingChina Key Laboratory Molecular Cardiovascular Science the Ministry of EducationPeking UniversityBeijing.China

Orthostatic intolerance(OI)is characterized by symptoms and signs of dizziness,headache,visual difficulties,a loss of consciousness,nausea,abdominal discomfort,pallor,tachycardia or hypotension;and OI is primarily elicited by a rapid postural change from supine to standing or prolonged quiet standing which can be resolved by lying down[1,2..About 15%of children and adolescents are affected by OI,with the median peak age of the first OI onset at 15 years[3].OI accounts for a noticeable proportion of emergency department *** or indeliberately,the injection of normal saline always plays a role,which“rescues”the *** or occasional episodes of OI are often overlooked by some patients;and children with recurrent OI symptoms often experience depression,and have diminished quality of life。

关键词： tachycardia injection nausea

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Impact of comorbidities on the prognosis of pediatric vasovagal syncope

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World Journal of pediatrics 2022年第9期18卷 624-628页

作者： Ya-Ru wang Xue-Ying Li jun-{2. du yan Sun Wen-Rui Xu Yu-Li wang Ying Liao hong-fang jin department of pediatrics Peking University First HospitalNo.1 Xi’an-men StreetWest DistrictBeijing100034China department of Medical Statistics Peking University First HospitalBeijingChina Key Laboratory of Molecular Cardiovascular Sciences Ministry of EducationBeijingChina

Vasovagal syncope(VVS)is the primary entity of neurally mediated syncope(NMS)in childhood,and its prognosis is usually considered ***,it is found in clini-cal practice that some children with VVS appear to have a frequent recurrence of syncope and poor response to treat-ment[1],which might seriously affect their quality of life[2..In recent years,an increasing number of comorbidities of VVS have been *** et *** that 31%of pediatric patients with NMS suffered from allergic disease[3],and Vallejo M reported that more than 50%of patients had headaches[4].These comorbidities might make the clinical manifestations even more ***,until now,it has been unclear whether comorbidities are associated with the prognosis of children and adolescents suffering from ***,the present study was conducted to examine whether there is any impact of comorbidities on the prognosis of pediatric VVS to better understand the outcome and management of children and adolescents with VVS.

关键词： syncope morbid pediatric

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Prediction of intravenous immunoglobulin resistance in Kawasaki disease in children

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World Journal of pediatrics 2020年第6期16卷 607-613页

作者： shu Wu Ying Liao yan Sun Chun-Yu Zhang Qing-You Zhang Hui yan Jian-Guang Qi Xue-Qin Liu Yong-hong Chen Yu-Li wang Xue-Ying Li hong-fang jin jun-bao du department of pediatrics Peking University First Hospital.No.1 Xi’an Men StreetXicheng DistrictBeijingChina Key Laboratory of Molecular Cardiovascular Sciences Ministry of Education.BeijingChina

Background We aimed to explore predictive measures for intravenous immunoglobulin(IVIG)resistance in children with Kawasaki disease(KD).Methods Patients diagnosed with KD were enrolled in this *** analysis and multiple logistic regression were utilized to analyze the clinical features and laboratory results prior to IVIG-treatment of the two *** predictors of IVIG resistance were analyzed,and a predictive model for KD children with IVIG resistance was *** A total of 2.7 children with KD,180 boys and 97 girls,aged 2.12.(median 2.)months,were enrolled in the *** with the IVIG-responsive group,the IVIG-resistant group had higher levels of the peripheral neutrophil count,mean platelet volume,mean platelet volume-to-lymphocyte ratio and C-reactive protein,and total serum bilirubin,but lower levels of peripheral lymphocyte count,serum albumin and serum ***(in months),peripheral neutrophil count,lymphocyte count and mean platelet volume and serum albumin were independent indicators for IVIG resistance by multivariate logistic regression analysis.A logistic regression model and a scoring system were set up,where cut-off values of—0.46 and 6.5 points yielded sensitivities of 83.9%and 77.4%,and specificities of 74.8%and 61.0%,*** areas under the curve(AUC)were 0.808 in the logistic regression model,and 0.750 in the scoring *** Our model for predicting IVIG-resistant children with KD,involving age(months),peripheral neutrophil count,lymphocyte count and mean platelet volume and serum albumin prior to IVIG-treatment,is helpful for clinical prediction of children with IVIG-resistant KD.

关键词： Intravenous immunoglobulin Kawasaki disease Resistance Prediction

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Comorbidity of chronic fatigue syndrome, postural tachycardia syndrome, and narcolepsy with 5,10-methylenetetrahydrofolate reductase (MTHFR) mutation in an adolescent: a case report

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Chinese Medical Journal 2021年第12期134卷 1495-1497页

作者： Ying Liao Jian-Guang Qi Hui yan Qing-You Zhang Tao-Yun Ji Xing-Zhi Chang Hai-Po yang {2.-fang jin jun-bao du department of pediatrics Peking University First HospitalBeijing 100034China

A 16-year-old male adolescent was hospitalized complaining of intermittent dizziness,drowsiness,and fatigue for approximately 2.*** patient had an episode of fever and pharyngalgia lasting nearly 2.weeks and had undergone appendectomy because of acute appendicitis before the presentation of the above *** suffered from severe dizziness mostly after switching from a supine to an upright posture when he was getting up in the *** symptom of dizziness usually persisted for minutes to hours and could be partially alleviated by *** addition,he felt drowsy and fatigued all day despite a total sleep duration of 14 to 15 h per *** the symptoms could be partially mitigated by complete bed rest for 1 or 2.weeks,but he relapsed after taking part in normal school life ***,the feeling of fatigue was obviously aggravated after exertion or *** was unable to focus on his studies and had to withdraw from school for a long *** a result,there was a decline in academic performance after the onset of *** used to benefit from taking carnitine and folate;however,the improvement was limited in enabling him to take part in normal social and school *** was physically and mentally healthy before the presentation and did not feel disgusted with learning in the *** family history of cardiovascular or nervous system disease was *** study was approved by the Ethics Committee of {2. University first hospital(No.2.2.-415).

关键词： fatigue getting minutes

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CEPC Technical Design Report

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Radiation Detection Technology and Methods 2024年第1期8卷 I0003-I0016,1-1091页

作者： Waleed Abdallah Tiago Carlos Adorno de Freitas Konstantin Afanaciev Shakeel Ahmad Ijaz Ahmed Xiaocong Ai Abid Aleem Wolfgang Altmannshofer Fabio Alves Weiming An Rui An Daniele Paolo Anderle Stefan Antusch Yasuo Arai Andrej Arbuzov Abdesslam Arhrib Mustafa Ashry Sha Bai Yu Bai yang Bai Vipul Bairathi Csaba Balazs Philip Bambade Yong Ban Tripamo Bandyopadhyay Shou-Shan bao Desmond P.Barber Ayse Bat Varvara Batozskaya Subash Chandra Behera Alexander Belyaev Michele Bertucci Xiao-{2. Bi Yuanjie Bi tianjian Bian Fabrizio Bianchi Thomas Biekotter Michela Biglietti Shalva Bilanishvili Deng Binglin Denis Bodrov Anton Bogomyagkov Serge Bondarenko Stewart Boogert Maarten Boonekamp Marcello Borri Angelo Bosotti Vincent Boudry Mohammed Boukidi Igor Boyko Ivanka Bozovic Giuseppe Bozzi Jean-Claude Brient Anastasiia Budzinskaya Masroor Bukhari Vladimir Bytev Giacomo Cacciapaglia Hua Cai Wenyong Cai Wu{2. Cai Yijian Cai Yizhou Cai Yuchen Cai Haiying Cai Huacheng Cai Lorenzo Calibbi {2.song Cang Guofu Cao Jianshe Cao Antoine Chance Xue{2. Chang Yue Chang Zhe Chang Xinyuan Chang Wei chao Auttakit Chatrabhuti Yimin Che Yuzhi Che Bin Chen Danping Chen Fuqing Chen Fusan Chen Gang Chen Guoming Chen Hua-Xing Chen Huirun Chen jinhui Chen Ji-Yuan Chen Kai Chen Mali Chen Ming{2. Chen Mingshui Chen Ning Chen Shanhong Chen Shanzhen Chen Shao-Long Chen Shaomin Chen Shiqiang Chen tianlu Chen Wei Chen Xiang Chen Xiaoyu Chen Xin Chen Xun Chen Xurong Chen Ye Chen Ying Chen Yukai Chen Zelin Chen Zilin Chen Gang Chen Boping Chen Chunhui Chen Hok Chuen Cheng Huajie Cheng Shan Cheng Tongguang Cheng Yunlong Chi Pietro Chimenti Wen Han Chiu Guk Cho Ming-Chung Chu Xiaotong Chu Ziliang Chu Guglielmo Coloretti Andreas Crivellin Hanhua Cui Xiaohao Cui Zhaoyuan Cui Brunella D'Anzi Ling-Yun Dai Xinchen Dai Xuwen Dai Antonio De Maria Nicola De Filippis Christophe De La Taille Francesca De Mori Chiara De Sio Elisa Del Core shuangxue Deng Wei-tian Deng Zhi Deng Ziyan Deng Bhupal Dev tang Dewen Biagio Di Micco Ran Ding Siqin Dingl Yadong Ding Haiyi Dong Jianin AGH University of Science and Technology Faculty of Physics and Applied Computer ScienceKrakow Anhui University HefeiAnhui Applied Physics department Federal Urdu University of ArtsScience and TechnologyIslamabad Banaras Hindu University Institute of ScienceVaranasi Bandirma Onyedi Eylul University Bandirma Beihang University Beijing beijing Computational Science Research Center Beijing beijing Conveyi LTD Beijing beijing Glass Research Institute Co. LtdBeijing beijing Institute of Technology Beijing beijing Normal University Beijing Brown University ProvidenceRI Budker Institute of Nuclear Physics Novosibirsk Cadi Ayyad University Laboratory of Fundamental and Applied PhysicsPolydisciplinary FacultyMarrakech Cairo University Giza Center for Theory and Computation National Tsing Hua UniversityHsinchu Central china Normal University WuhanHubei Central South University ChangshaHunan Centro de Fisica Teorica de Particulas Universidade Tecnica de LisboaLisboa Chengdu KaitengSifang Digital Radio&TV Equipment Co. LtdChengduSichuan china academy of engineering physics MianyangSichuan china building materials academy Beijing china Center of Advanced Science and Technology Beijing china Institute of Atomic Energy Beijing china Jiliang University HangzhouZhejiang china Nuclear Instrument CO. LTDBeijing china University of Geosciences Beijing china University of Geosciences WuhanHubei china University of Mining and Technology XuzhouJiangsu china West Normal University NanchongSichuan Chongqing University Department of PhysicsChongqing Chulalongkorn University Bangkok City University of hong Kong Department of PhysicsHong Kong Cockcroft Institute Daresbury Cornell University IthacaNY CPPM(AMU/IPhU&CNRS/INP) Marseille Dalian Minzu University DalianLiaoning Dalian University of Technology Department of PhysicsDalian Deutsches Elektronen-Synchrotron DESY Hamburg Dzhelepov Laboratory of Nuclear Problems of Joint Institute for Nuclear Research(DLNP jinR) Dubna East china University Of Science And Technol

The Circular Electron Positron Collider(CEPC)is a large scientific project initiated and hosted by china,fostered through extensive collaboration with international *** complex comprises four accelerators:a 30 GeV Linac,a 1.1 GeV Damping Ring,a Booster capable of achieving energies up to 180 GeV,and a Collider operating at varying energy modes(Z,W,H,and tt).The Linac and Damping Ring are situated on the surface,while the subterranean Booster and Collider are housed in a 100 km circumference underground tunnel,strategically accommodating future expansion with provisions for a potential Super Proton Proton Collider(SPPC).The CEPC primarily serves as a Higgs *** its baseline design with synchrotron radiation(SR)power of 30 MW per beam,it can achieve a luminosity of 5×10^(34)cm^(-2.s^(-1)per interaction point(IP),resulting in an integrated luminosity of 13 ab^(-1)for two IPs over a decade,producing 2.6 million Higgs *** the SR power to 50 MW per beam expands the CEPC's capability to generate 4.3 million Higgs bosons,facilitating precise measurements of Higgs coupling at sub-percent levels,exceeding the precision expected from the HL-LHC by an order of *** Technical Design Report(TDR)follows the Preliminary Conceptual Design Report(Pre-CDR,2.15)and the Conceptual Design Report(CDR,2.18),comprehensively detailing the machine's layout,performance metrics,physical design and analysis,technical systems design,R&D and prototyping efforts,and associated civil engineering ***,it includes a cost estimate and a preliminary construction timeline,establishing a framework for forthcoming engineering design phase and site selection *** is anticipated to begin around 2.2.-2.2.,pending government approval,with an estimated duration of 8 *** commencement of experiments and data collection could potentially be initiated in the mid-2.30s.

关键词： initiated exceeding precise

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儿童直立性高血压的临床特征

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中华儿科杂志 2012年第11期50卷 839-842页

作者：赵娟杨锦艳金红芳杜军保北京大学第一医院儿科 100034

目的探讨儿童直立性高血压（OHT）的临床特征。方法收集在北京大学第一医院儿科门诊诊断为OHT的患儿96例，分析其人口学特征、病程及体位变化引起的血流动力学改变，同时观察各种临床表现的发生频率及其诱发因素。结果在96例OHT患儿中，... 详细信息

目的探讨儿童直立性高血压（OHT）的临床特征。方法收集在北京大学第一医院儿科门诊诊断为OHT的患儿96例，分析其人口学特征、病程及体位变化引起的血流动力学改变，同时观察各种临床表现的发生频率及其诱发因素。结果在96例OHT患儿中，男50例，女46例，年龄（11．8±2.7）岁。病程小于1个月者2.例，占2.．9％；病程在1个月到1年之间者49例，占51．1％。就诊时最常见的临床表现为晕厥、头晕、恶心呕吐等，多在患儿突然体位变化（由卧位变为站立位）（占2.．0％）或持久站立（占57．3％）的情况下发生；其他诱发因素包括运动、情绪变化、环境闷热等。患儿平卧位收缩压和舒张压分别为（103±8）mmHg（1mmHg=0．133kPa）和（59±6）mmHg，直立3min时收缩压和舒张压分别为（113±8）mmHg和（73±6）mmHg，差异有统计学意义（t=2.．674、17．936，P均〈0．01）；平卧位心率（81±11）次／min，站立3min内心率最大值（113±12.次／min（t=33．092.P〈0．01）。结论OHT患儿多处于青春发育期，晕厥和头晕为主要临床症状，多由体位改变或持久站立诱发。患儿由平卧位转为直立体位时，血压明显升高。

关键词：儿童疾病特征直立性高血压

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