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呼吸节律

呼吸节律的相关文献在1989年到2022年内共计141篇,主要集中在基础医学、生理学、临床医学 等领域,其中期刊论文127篇、会议论文3篇、专利文献47743篇;相关期刊88种,包括生物学通报、科学之友、中国保健等; 相关会议3种,包括第十三届全国非线性振动暨第十届全国非线性动力学和运动稳定性学术会议、第五届中国多巴高原训练与健康国际研讨会、第十一届中国咳嗽论坛等;呼吸节律的相关文献由251位作者贡献,包括吴中海、刘磊、郑煜等。

呼吸节律—发文量

期刊论文>

论文:127 占比:0.27%

会议论文>

论文:3 占比:0.01%

专利文献>

论文:47743 占比:99.73%

总计:47873篇

呼吸节律—发文趋势图

呼吸节律

-研究学者

  • 吴中海
  • 刘磊
  • 郑煜
  • 宋刚
  • 王剑莉
  • 任锋
  • 刘深泉
  • 孙鹏
  • 张奕
  • 张翠英
  • 期刊论文
  • 会议论文
  • 专利文献

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    • 王梅琴; 王平均
    • 摘要: 介绍了一种用于检测多参数监护仪呼吸节律的模拟装置,可解决多参数监护仪的呼末二氧化碳浓度示值误差和呼吸频率示值误差两个计量参数检定的问题,该装置采用低压设计,标准气体消耗量低,模拟潮气量、呼气量、吸气量、呼气时间、吸气时间可根据监护仪不同病人工作模式进行调整,可用于多参数监护仪的检测、质保维修、校正等工作.
    • 刘云峰; 韩彤妍; 童笑梅; 王晶; 汤亚南; 崔立刚; 朱小辉; 朴梅花; 王晴晴; 武慧
    • 摘要: 患儿(36周胎龄出生),男, 2个月,因咳嗽、呼吸困难入院。入院后发现患儿存在持续性高血压、蛋白尿和惊厥持续状态,影像学提示主动脉及大分支广泛钙化,腹主动脉、右肾动脉局部管腔变窄伴血流速度增快。患儿新生儿期因湿肺、肺动脉高压住院,期间曾发现高血压、蛋白尿。进一步行全外显子组基因高通量测序,发现患儿ENPP1基因存在源自父母的复合杂合突变:c.130C>T(p.Q44X)和.c.1112A>T(p.Y371F)。c.130C>T为无义突变,可造成蛋白质从44个氨基酸之后的部分缺失,为一级致病性突变形式;c.1112A>T为错义突变,为已报道的与特发性婴儿动脉钙化症(IIAC)相关的致病性突变。因此确诊为IIAC。给予膦酸盐及降压、止惊、呼吸支持等对症治疗,血压维持在正常高限,动脉钙化未恶化。对于持续高血压伴广泛大血管钙化的小婴儿,应注意IIAC的可能,尽早行影像学及基因检查确诊。
    • 余粟力
    • 摘要: Dance is a kind of art that combines human behaviors and the breathing rhythm, therefore the breathing method and the “sense of breathing” in dance movement rhythm are of great importance. Breathing in the dance is not only physical lung breath, but also relfected on the body movement rhythm. Dancers use various strengths and rhythms of breathing to change the body’s postures and movements trails, and to organize dance vocabulary system to form different dance styles and types. Meanwhile, dancers coordinate body behaviors and breathing rhythms to complete their performances and emotional expression. Elements of a perfect dance vocabulary include: the unity of thought and breathing, of breathing and body, and of body and mind. Perfect dance vocabulary is the expression that can handle rhythm and movement nicely while mastering breathing laws and applying freely breathing methods.%舞蹈是一种人体行为与呼吸节律的配合的艺术,呼吸的方法和舞蹈动律的“呼吸感”至关重要。呼吸在舞蹈中不仅有生理上的肺部呼吸,还体现在肢体动律上。舞者运用呼吸的力度、节律等方式改变身体姿态和运动轨迹,组织舞蹈语汇体系,形成各异的舞蹈风格和类型。舞者通过人体行为与呼吸节律的配合完成表演和对思想情感的表达。在舞蹈中,构成完美舞蹈语汇的要素包括:思想与呼吸的统一,呼吸与身体的统一,身体与思想的统一。完美的舞蹈语汇是在把握节奏、节律的同时,掌握呼吸规律并自如运用呼吸方式进行的表达。
    • 平小方; 刘深泉; 任会霞; 汪雷
    • 摘要: 呼吸节律的产生起源于Pre-B(o)tzinger复合体,这其中包含了Pre-B(o)tzinger神经元在内的许多种呼吸神经元的参与,这些呼吸神经元和肺通过突触联系构成了脑桥-髓质的动态呼吸网络.由于目前对于呼吸节律产生和变化的网络机制尙不完全清楚,因此,本文从非线性动力学角度入手,通过构造与实际结构比较接近的呼吸网络模型,分别考察了网络中单个Pre-B(o)tzinger中间神经元多样性的发放模式以及网络中群体神经元周期性和同步性的放电变化.数值结果为进一步揭示呼吸节律的产生和调控机制提供了一定的帮助.
    • 袁丹丹; 陈汐; 段利霞
    • 摘要: The rhythmic bursting of excitatory neurons in the pre-Btzinger complex is closely related to the re-spiratory rhythm generation.Leakage current plays an important role in regulating the bursting pattern of neurons. We studied the influences of the leakage current on bursting synchronization and transition mechanisms by both two-parameter bifurcation analysis and fast/slow decomposition.The results show that,under different initial con-ditions,the coupled cells can exhibit “fold /homoclinic”type and “subHopf/homoclinic”type bursting for in-phase synchronization,and exhibit “fold /fold cycle”type and “subHopf/fold cycle”type bursting for anti-phase synchronization.This work provides insights into the study of the respiratory rhythm.%Pre-Btzinger 复合体中兴奋性神经元节律性簇放电与呼吸节律的产生关系密切。泄漏电流对神经元簇放电具有重要的调节作用。本文利用双参数分岔分析和快慢变量分离等方法,研究了泄漏电流对耦合神经元簇同步模式及其转迁机制的影响。结果表明,在不同初始条件下,当泄漏电导改变时耦合神经元分别表现为同相“fold /homoclinic”型、“subHopf/homoclinic”型和反相“fold /fold cycle”型和“subHopf/fold cycle”型簇放电。本文的研究为进一步探索呼吸节律的产生机制提供了一些见解。
    • 王琨琦; 刘颖; 陈世杰
    • 摘要: 本文为了研究给人类带来困扰的梦魇的自主唤醒的特征信号.通过比较梦魇发生时产生的各种信号,确定自主唤醒的呼吸音信号作为特征信号.提出呼吸节律提取法,提取出有用的呼吸信号,滤除噪声信号.利用类周期法对采集到的呼吸信号进行呼吸节律的分析,运用COOL EDIT录制模拟梦魇时的粗重呼吸音信号和正常的平稳呼吸音信号,应用MATLAB软件对两种呼吸音信号做短时傅里叶变换,进行频域对比分析.获得了呼吸信号的节律范围是3~6s,粗重呼吸音信号的频率是0~300Hz,幅值为50~220mV.通过确定的粗重呼吸音信号的节律、频率、幅值范围,可以进行特征信号的提取.
    • 曹毅; 万业达; 李宝玖; 蔡华琦
    • 摘要: Objective To study the manual control respiratory rhythm trigger acquisition (MCRRTA)technology in improving image quality and shortening acquisition time of the low-field MRCP scan.Methods 40 patients underwent MRCP scans using both automatic respiratory rhythm trigger acquisition (ARRTA)and MCRRTA,and the acquisition time and image quality were also ana-lyzed.Results The acquisition time of MRCP using ARRTA and MCRRTA were 675.13 ± 35.89 s and 546.38 ± 30.61 s respec-tively,exhibiting significant differences using the paired sample t-test (t=13.85,P=0.000).In ARRTA group,the scores of the image quality were 4 in 11 cases (11/40,27.5%);3 in 18 cases (18/40,45.0%);2 in 10 cases (10/40,25.0%);and 1 in only 1 case (1/40,2.5%),respectively.In MCRRTA group,the scores of the image quality were 4 in 25 cases (25/40,65.5%);3 in 10 cases (10/40,25.0%);2 in 5 cases (5/40,12.5%);and no case with 1 score (0/40,0%),respectively.The differences in image quality between two groups were statistically significant using the wilcoxon rank sum test (Z=-3.036,P=0.002).Conclusion MCRRTA technology in low-field MRCP scans can improve significantly image quality and shorten examination time.%目的:探讨人工调节呼吸节律触发图像采集对低场磁共振 MRCP图像质量及采集时间的影响。方法40例行磁共振胰胆管成像技术(MRCP)检查的患者先后采用常规呼吸节律触发采集(ARRTA)和人工调节呼吸节律触发采集(MCRRTA)2种方式进行图像采集,对2种方式下的图像采集时间和图像质量进行统计学分析。结果 ARRTA 方式采集时间为(675.13±35.89)s, MCRRTA方式采集时间为(546.38±30.61)s。经配对样本t检验,2组间差异具有统计学意义(t=13.85,P=0.000)。ARRTA方式的4分图像11例,占27.5%(11/40);3分图像18例,占45.0%(18/40);2分图像10例,占25.0%(10/40);1分图像1例,占2.5%(1/40)。MCRRTA方式的4分图像25例,占65.5%(25/40);3分图像10例,占25.0%(10/40);2分图像5例,占12.5%(5/40);1分图像0例,占0%(0/40)。经过Wilcoxon秩和检验,2组间差异具有统计学意义(Z=-3.036,P=0.002)。结论在低场强 MRCP成像时,采用人工调节呼吸节律触发采集方法可以明显提高患者的 MRCP图像质量,并可减少患者的检查时间。
    • 王迎斌; 王书宝; 黄生辉; 张荣智; 郑奇辉; 耿智隆
    • 摘要: 目的 探讨星形胶质细胞在七氟醚对呼吸中枢抑制过程中是否发挥关键作用.方法 制作新生SD大鼠延髓脑片(包含延髓面神经后核内侧区),完整保留舌下神经根,用吸附电极记录舌下神经根的呼吸节律性放电.实验分为6组(n=8):对照组、七氟醚组、二氢卡因酸盐(DHK)组、L-蛋氨酸亚砜亚胺(MS)组、MS+DHK组、七氟醚+DHK组,分别通过生物机能学记录系统记录舌下神经根呼吸节律放电(RRDA),分析呼吸周期(RC)、吸气时程(IT)、吸气放电积分幅度(IA).结果 七氟醚对舌下神经根RRDA有抑制作用,RC延长了53.7%,IT缩短了15.5%,IA降低了19.4%.谷氨酸转运体拮抗剂DHK能够明显兴奋呼吸输出形式,表现为RC缩短26.7%,IA增高6.9%,IT变化不明显.胶质细胞代谢抑制剂MS对RRDA表现为抑制,RC延长31.8%,IT缩短26.4%,IA降低15.5%;在联合应用MS+DHK后对RRDA的影响不明显,七氟醚对RRDA的抑制作用能够被DHK所逆转.结论 在离体延髓脑片上星形胶质细胞能够参与基本节律性呼吸的发生,在七氟醚对呼吸中枢的抑制作用中发挥重要作用.%Objective The effect of astrocytes in the sevoflurane (SEV) mediated regulation of respiratory rhythm from the brainstem slice was identified.Methods Neonatal (aged 0~3 d)Sprague-Dawley rats of either sex were used.The brainstem slice containing the medial region of the nucleus retrofacialis and the hypoglossal nerve rootlets was prepared and the surgical procedure was performed in the artificial cerebrospinal fluid (ACSF) with continuous carbogen (95%O2 and 5% CO2),and ended in 3 min.Respiratory rhythmical discharge activity (RRDA) of the hypoglossal nerve rootlets was recorded by suction electrode.The experiment was divided into 6 groups and treated for 10 min with ACSF,SEV(5%),dihydrokinate (DHK,300 μmol/L),L-methionine sulfoximine (MS,50 μmol/L),MS (50 μmol/L) + DHK (300 μmol/L),SEV (5%) +DHK (300 μmol/L).Results SEV had the inhibitory effect,and it could prolong the respiratory cycle,shorten respiratory time and decrease the integral amplitude.DHK,a selective blocker of GLT-1 (EAAT2) induced significant decrease in respiratory cycle,and increased integral amplitude.MS,a blockage of glutamine synthetase,was applied,and the RRDA was inhibited.The effect of SEV on the RRDA was reversed after co-perfusion of SEV and DHK.Conclusion Astrocytes was likely involved in the modulation of the normal RRDA and played the key role in SEV-mediated regulation of RRDA in the brainstem slice of neonatal rats.
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