نتایج جستجو برای: elf pemf

تعداد نتایج: 2386  

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 ...

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...

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...

Journal: :Archives of physical medicine and rehabilitation 2009
Michael I Weintraub David N Herrmann A Gordon Smith Misha M Backonja Steven P Cole

OBJECTIVE To determine whether repetitive and cumulative exposure to low-frequency pulsed electromagnetic fields (PEMF) targeting painful feet can reduce neuropathic pain (NP), influence sleep in symptomatic diabetic peripheral neuropathy (DPN), and influence nerve regeneration. DESIGN Randomized, double-blind, placebo-controlled parallel study. SETTING Sixteen academic and clinical sites i...

Journal: :Bioelectromagnetics 2009
Li-Yi Sun Dean-Kuo Hsieh Tzai-Chiu Yu Hsien-Tai Chiu Sheng-Fen Lu Geng-Hong Luo Tom K Kuo Oscar K Lee Tzyy-Wen Chiou

Pulsed electromagnetic fields (PEMFs) have been used clinically to slow down osteoporosis and accelerate the healing of bone fractures for many years. The aim of this study is to investigate the effect of PEMFs on the proliferation and differentiation potential of human bone marrow mesenchymal stem cells (BMMSC). PEMF stimulus was administered to BMMSCs for 8 h per day during culture period. Th...

2018
Xinyan Tang Tamara Alliston Dezba Coughlin Stephanie Miller Nianli Zhang Erik I. Waldorff James T. Ryaby Jeffrey C. Lotz

Inflammatory cytokines play a dominant role in the pathogenesis of disc degeneration. Pulsed electromagnetic fields (PEMF) are noninvasive biophysical stimulus that has been used extensively in the orthopaedic field for many years. However, the specific cellular responses and mechanisms involved are still unclear. The objective of this study was to assess the time-dependent PEMF effects on pro-...

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