Results 21 to 30 of about 23,583 (245)

Arteriovenous Oscillometric Plethysmography for Fistula Functional Testing

Kidney & Blood Pressure Research
Introduction: The aim of the presented prospective observational study was to evaluate the effect of fistula flow on peripheral wave morphology and pulse wave velocity by means of the oscillometric Vicorder®-device with the purpose of fistula ...
Veit Busch, Joachim Streis, Sandra Müller, Niklas Mueller, Felix S. Seibert, Thomas Felderhoff, Timm H. Westhoff   +6 more
doaj   +1 more source

A variabilidade hemodinâmica venosa detectada pelos parâmetros da pletismografia a ar nas classes clínicas da classificação CEAP Variability of venous hemodynamics detected by air plethysmography in CEAP clinical classes

Jornal Vascular Brasileiro, 2007
CONTEXTO: A variabilidade hemodinâmica da pletismografia a ar é conhecida, mas o exato papel dessa variabilidade no cotidiano clínico não foi investigado, podendo ter algum significado clínico ainda não explorado.
Ricardo de Ávila Oliveira, Newton de Barros Jr., Fausto Miranda Jr.   +2 more
doaj   +1 more source

Evaluation of perfusion index as an objective tool to assess analgesia during laparoscopic surgeries under general anaesthesia

Indian Journal of Anaesthesia, 2022
Background and Aims: Changes in the sympathetic nervous system by pain can impact smooth muscle tone and can alter perfusion. This can be monitored by perfusion index (PI).
C Surekha, Venkata S Eadara, M N Satish Kumar   +2 more
doaj   +1 more source

Knockdown of PHOX2B in the retrotrapezoid nucleus reduces the central CO2 chemoreflex in rats

eLife
PHOX2B is a transcription factor essential for the development of different classes of neurons in the central and peripheral nervous system. Heterozygous mutations in the PHOX2B coding region are responsible for the occurrence of Congenital Central ...
Silvia Cardani, Tara A Janes, William Betzner, Silvia Pagliardini   +3 more
doaj   +1 more source

Electromagnetic sensor for measuring the dielectric permeability of materials

Вісник Харківського національногоуніверситету імені В.Н. Каразіна. Серія: Радіофізика та електроніка, 2020
Relevance: Problems of control and determination of electrophysical parameters of materials of different physical nature are relevant in terms of the development of express methods of analysis of substances in various fields of science and technology, in
Ye. A. Antonenko, V. A. Kozheshkurt, D. A. Shtoda, V. A. Katrich, A. I. Bozhkov   +4 more
doaj   +1 more source

A Tac1‐Expressing Brainstem Pathway Underlies the Pathogenesis of Trigeminal Neuralgia

Advanced Science, EarlyView.
A critical TG‐Sp5CTac1‐PBNTac1 pathway drives trigeminal neuropathic pain (TNP). Tac1‐expressing parabrachial nucleus (PBNTac1) neurons exhibit heightened responses to innocuous stimuli in TNP, and chemogenetic inhibition of these neurons effectively prevents TNP development.
Liting Sun, Jia‐Jia Wang, Xiang‐Yu Li, Xin‐Yi Lin, Juan Li, Qiu‐Tong Yu, Zi‐Han Wang, Xue‐Ping Gao, Lei Jin, Wei‐Ke Li, Tian‐Lin Cheng, Juan Deng   +11 more
wiley   +1 more source

Perfusion index as a predictor of hypotension following propofol induction - A prospective observational study

Indian Journal of Anaesthesia, 2017
Background and Aims: Hypotension during propofol induction is a common problem. Perfusion index (PI), an indicator of systemic vascular resistance, is said to be predictive of hypotension following subarachnoid block.
Sripada G Mehandale, Preethi Rajasekhar
doaj   +1 more source

Respiratory‐Limbic Coupling via a Thalamic Circuit Alleviates Anxiety

Advanced Science, EarlyView.
This study delineates a conserved preBötCGlu→PVT→CeA circuit that gates anxiety and respiration. Activation of this circuit is anxiolytic and respiratory‐stabilizing, while its inhibition has the opposite effect. Mechanistically, PVT exerts its anxiolytic action via a disinhibitory microcircuit: its inputs preferentially target CeL GABAergic neurons ...
Shangyu Bi, Xiaoyi Wang, Huichun Luo, Ziteng Yue, Tianjiao Deng, Yuhang Liu, Xinxin Chen, Jianxu Zhao, Luo Shi, Ning Ma, Lingyan Mao, Jing Ding, Jiwen Xu, Ti‐Fei Yuan, Sheng Wang, Fang Yuan   +15 more
wiley   +1 more source

Plethysmographic Peripheral Perfusion Index: Could It Be a New Vital Sign?

Frontiers in Medicine, 2021
The plethysmographic peripheral perfusion index (PPI) is a very useful parameter with various emerging utilities in medical practice. The PPI represents the ratio between pulsatile and non-pulsatile portions in peripheral circulation and is mainly ...
Mamdouh M. Elshal, Ahmed M. Hasanin, Maha Mostafa, Reham M. Gamal   +3 more
doaj   +1 more source

RIPK3 Orchestrates Scar‐Associated Macrophage Dysfunction to Drive Pulmonary Fibrosis

Advanced Science, EarlyView.
Beyond signaling cell death, RIPK3 emerges as a critical metabolic regulator in pulmonary fibrosis. This research reveals that RIPK3 promotes PI3K‐AKT signaling in scar‐associated macrophages to fuel polyamine synthesis, independent of its kinase activity.
Tao Yang, Xiao Li, Shuyue Lei, Qingqing Li, Yi Zhang, Zhizhen Hui, Jinjin Ren, Xuelian Yang, Xiaoqian Yang, Chunlan Feng, Yousheng Xu, Dongxin Zhao, Wei Tang   +12 more
wiley   +1 more source