نتایج جستجو برای: pemf

تعداد نتایج: 198  

Journal: :Journal of physiology and pharmacology : an official journal of the Polish Physiological Society 2008
J Kaszuba-Zwoińska I Ciećko-Michalska D Madroszkiewicz T Mach Z Słodowska-Hajduk E Rokita W Zaraska P Thor

AIM We investigated effects of pulsating electromagnetic field (PEMF-50 Hz, 45 +/- 5 mT) on viability and cytokine production by human peripheral blood mononuclear cells (PBMC) from healthy donors and from Crohn's disease patients (CD). METHODS The study was performed after activation of cells with phytohaemaglutinin (PHA) and lipopolisaccharide (LPS). Exposure of PBMC cultures to PEMF from b...

Journal: :Lancet 1982
A R Raji R E Bowden

Apart from preliminary notices of present work, previous reports of experimental and clinical trials of the effects of a high-peak pulsed electromagnetic field (PEMF) on degeneration and regeneration of peripheral nerves lacked statistical analysis. Therefore, we designed experiments with standardised operative, histological, cytological and morphometric techniques to assess the effect of PEMF ...

2015
Loredana Petecchia Francesca Sbrana Roberto Utzeri Marco Vercellino Cesare Usai Livia Visai Massimo Vassalli Paola Gavazzo

Exposure to Pulsed Electromagnetic Field (PEMF) has been shown to affect proliferation and differentiation of human mesenchymal stem cells derived from bone marrow stroma (BM-hMSC). These cells offer considerable promise in the field of regenerative medicine, but their clinical application is hampered by major limitations such as poor availability and the time required to differentiate up to a ...

Objective(s): It is known that extremely low frequency-pulsed electromagnetic fields (ELF-PEMF) influence multiple cellular and molecular processes. Retinal pigment epithelial (RPE) cells have a significant part in the emergence and pathophysiology of several ocular disorders, such as neovascularization. This study assessed the impact of ELF-PEMF on the proangiogenic features of RPE cells. Mate...

Journal: :Ophthalmologica. Journal international d'ophtalmologie. International journal of ophthalmology. Zeitschrift fur Augenheilkunde 2003
Gregor Wollensak Felix Muchamedjarow Richard Funk

PURPOSE Previous clinical studies have suggested a positive effect of low-frequency pulsed electromagnetic fields (PEMF) on wound healing and inflammation in the eye. We tried to test the value of PEMF treatment in a hyphema animal model with well-defined conditions. METHODS After injection of citrated autologous blood for the production of hyphema, 16 rabbit eyes were treated with 10 or 20 m...

2015
Federica Rosso Davide E. Bonasia Antonio Marmotti Umberto Cottino Roberto Rossi

The pathogenesis of tendon degeneration and tendinopathy is still partially unclear. However, an active role of metalloproteinases (MMP), growth factors, such as vascular endothelial growth factor (VEGF) and a crucial role of inflammatory elements and cytokines was demonstrated. Mechanical stimulation may play a role in regulation of inflammation. In vitro studies demonstrated that both pulsed ...

2017
Hui Liu Jun Zhou Lianbing Gu Yunxia Zuo

Neuropathic pain is usually defined as a chronic pain state caused by peripheral or central nerve injury as a result of acute damage or systemic diseases. It remains a difficult disease to treat. Recent studies showed that the frequency of action potentials in nociceptive afferents is affected by the activity of hyperpolarization-activated cyclic nucleotide-gated cation channels (HCN) family. I...

2016
Qiang Fang Seedahmed S. Mahmoud Jiayong Yan Hui Li

For this investigation, we studied the effects of extremely low frequency pulse electromagnetic fields (ELF-PEMF) on the human cardiac signal. Electrocardiograms (ECGs) of 22 healthy volunteers before and after a short duration of ELF-PEMF exposure were recorded. The experiment was conducted under single-blind conditions. The root mean square (RMS) value of the recorded data was considered as c...

Journal: :International Journal of Molecular Sciences 2023

Fracture-healing is a highly complex and timely orchestrated process. Non-healing fractures are still major clinical problem treatment remains difficult. A 16 Hz extremely low-frequency pulsed electromagnetic field (ELF-PEMF) was identified as non-invasive adjunct therapy supporting bone-healing by inducing reactive oxygen species (ROS) Ca2+-influx. However, ROS Ca2+-influx may stimulate neutro...

Journal: :Advances in clinical and experimental medicine : official organ Wroclaw Medical University 2013
Arzum G Dogru Selcuk Tunik Veysi Akpolat Mehmet Dogru Ebru E Saribas Filiz A Kaya Yusuf Nergiz

BACKGROUND The potential beneficial effects of extremely low frequency pulsed and sinusoidal electromagnetic fields have been shown on many tissues. Gingival epithelium plays an important role in immunosurveillance of the periodontal tissues. The epithelium acts as a mechanical barrier through cell junctions such as E-cadherin. OBJECTIVES Investigation of the effects of extremely low frequenc...

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