نتایج جستجو برای: سیگنال hrv

تعداد نتایج: 9730  

2009
Ting Huang Wei Wang Mael Bessaud Peijun Ren Jun Sheng Huajie Yan Jing Zhang Xin Lin Yongjin Wang Francis Delpeyroux Vincent Deubel

BACKGROUND Human rhinoviruses (HRVs) are a highly prevalent cause of acute respiratory infection in children. They are classified into at least three species, HRV-A, HRV-B and HRV-C, which are characterized by sequencing the 5' untranslated region (UTR) or the VP4/VP2 region of the genome. Given the increased interest for novel HRV strain identification and their worldwide distribution, we have...

2016
Jakub S. Gąsior Jerzy Sacha Piotr J. Jeleń Jakub Zieliński Jacek Przybylski

BACKGROUND Since heart rate variability (HRV) is associated with average heart rate (HR) and respiratory rate (RespRate), alterations in these parameters may impose changes in HRV. Hence the repeatability of HRV measurements may be affected by differences in HR and RespRate. The study aimed to evaluate HRV repeatability and its association with changes in HR and RespRate. METHODS Forty health...

Journal: :journal of sleep sciences 0
omid aminian occupational sleep research center, baharloo hospital, tehran university of medical sciences, tehran, iran narges sadat shams-hosseini center for research on occupational diseases, tehran university of medical sciences, tehran, iran khosro sadeghniiat-haghighi occupational sleep research center, baharloo hospital, tehran university of medical sciences, tehran, iran

background and objective: obstructive sleep apnea syndrome (osas) is a prevalent disease in adults. limited evidence regarding the effect of severity of sleep apnea and depression on heart rate variability (hrv) indices exists. hence, we decided to focus on the association between hrv and severity of osas based on depression score. materials and methods: a total of 193 patients with confirmed o...

Journal: :Journal of clinical microbiology 2007
Susanna K P Lau Cyril C Y Yip Hoi-Wah Tsoi Rodney A Lee Lok-Yee So Yu-Lung Lau Kwok-Hung Chan Patrick C Y Woo Kwok-Yung Yuen

Although human rhinoviruses (HRVs) are common causes of respiratory illness, their molecular epidemiology has been poorly investigated. Despite the recent findings of new HRV genotypes, their clinical disease spectrum and phylogenetic positions were not fully understood. In this study, 203 prospectively collected nasopharyngeal aspirates (NPAs), negative for common respiratory viruses (83 were ...

Journal: :Japanese journal of infectious diseases 2011
Atsushi Kaida Hideyuki Kubo Kohichi Takakura Masao Togawa Masashi Shiomi Urara Kohdera Nobuhiro Iritani

Human rhinovirus (HRV) is a causative agent of acute respiratory tract infection (ARTI). In 2007, a novel HRV group, HRV-C, was discovered. This study, which assessed whether HRV-C is epidemic among patients with ARTI, was aimed at analyzing the seasonal prevalence of HRV-C in Osaka City, Japan. Gene amplification tests were performed to detect 10 respiratory viruses in 336 specimens collec...

2013
Cristina Daleno Antonio Piralla Alessia Scala Laura Senatore Nicola Principi Susanna Esposito

In order to evaluate the circulation of the different human rhinovirus (HRV) species and genotypes in Italian children with radiographically confirmed community-acquired pneumonia (CAP), a nasopharyngeal swab was obtained from 643 children admitted to hospital because of CAP during five consecutive winter and early spring seasons (2007-2012). Real-time reverse transcriptase polymerase chain rea...

Journal: :Frontiers in microbiology 2016
Yam Sim Khaw Yoke Fun Chan Faizatul Lela Jafar Norlijah Othman Hui Yee Chee

Human rhinovirus-C (HRV-C) has been implicated in more severe illnesses than HRV-A and HRV-B, however, the limited number of HRV-C complete genomes (complete 5' and 3' non-coding region and open reading frame sequences) has hindered the in-depth genetic study of this virus. This study aimed to sequence seven complete HRV-C genomes from Malaysia and compare their genetic characteristics with the...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده علوم پزشکی 1392

هدف از انجام این مطالعه بررسی پاسخ دهی تغییرات دینامیکی ضربان قلب به اندوتوکسین در موش های دیابتی و مقایسه آن با موش های سالم است. به همین منظور آزمایش ها در دو فاز in vivo و in vitro بر روی موش های صحرایی نر نژاد sprague-dawley طراحی و انجام شدند. در فاز in vivo از سیستم تله متری برای بررسی تغییرات ضربان قلب در حیوان هوشیار استفاده شد. نتایج مطالعه نشان داد که تزریق اندوتوکسین با دوز (1mg/kg) ...

2015
Jakub S. Gąsior Jerzy Sacha Piotr J. Jeleń Mariusz Pawłowski Bożena Werner Marek J. Dąbrowski

BACKGROUND Heart rate variability (HRV) is primarily heart rate (HR) dependent, and therefore, different HR may exert different impact on HRV. The objectives of the study were to evaluate the effect of HR on HRV in children and to determine whether HRV indices normalized to HR are sex- and age-related. METHODS Short-term ECG recordings were performed in 346 healthy children. Standard time and...

اکبری , اسماعیل, فروتن , سیدعباس,

Background and purpose:Squatting test and heart rate variability (HRV) are currently being used to evaluate cardiovascular autonomic nervous function. HRV indexes are able to measure vagal function, while squatting test is able to measure both sympathetic and vagal functions. Our objective in this research is to evaluate the influence of injective dicyclomine hydrochloride (DCH)-an M1 recepto...

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