Lasers in Medical Science
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808-nm laser therapy with a flat-top handpiece photobiomodulates mitochondria activities of Paramecium primaurelia (Protozoa)
Lasers in Medical Science - Tập 31 - Trang 741-747 - 2016
Photobiomodulation is proposed as a non-linear process, and only low-level laser therapy (LLLT) is assumed to stimulate exposed cells, whereas high powered laser and fluences can cause negative effects, exhausting the cell’s energy reserve as a consequence of excessive photon-based stimulation. In our work, we investigated and compared the effects of 808-nm diode laser (CW) with a new flat-top han...... hiện toàn bộ
Transcatheter laser photocoagulation for treatment of cardiac arrhythmias
Lasers in Medical Science - Tập 6 - Trang 355-361 - 1991
Cardiac arrhythmias can be treated by endocardial laser photocoagulation of arrhythmogenic foci. Transcatheter continuous wave Nd-YAG laser (1064 nm) photocoagulation was studied for impairment of atrioventricular (AV) conduction. First, studies on the dose-effect relation revealed that in vitro applications to ventricular endocardium produce dose-dependent coagulation necrosis. However, energy ab...... hiện toàn bộ
Cerebral Vascular Effects of Non-invasive Laserneedles Measured by Transorbital and Transtemporal Doppler Sonography
Lasers in Medical Science - Tập 17 - Trang 289-295 - 2002
. Laserneedles represent a new non-invasive optical stimulation method which is described for the first time in this paper. We investigated 27 healthy volunteers (mean age±SD: 25.15±4.12 years; range: 21–38 years; 14 female, 13 male) in a randomised cross-over trial to study differences between laserneedle acupuncture and manual needle acupuncture in specific cerebral parameters. Mean blood flow v...... hiện toàn bộ
Evaluation of combining ultrapulse CO2 with fractional CO2 laser for the treatment of atrophic scars in Asians
Lasers in Medical Science - - 2024
Various treatment modalities have been applied to atrophic scars. Fractional CO2 laser treatment has attracted increasingly more attention because of its quicker recovery time and fewer side effects. However, its limitation of sculpting the edge is an urgent shortcoming. In order to achieve a more effective result with fewer complications, we have integrated ultrapulse CO2 and fractional CO2 laser...... hiện toàn bộ
Enhancement of photo-bactericidal effect of tetrasulfonated hydroxyaluminum phthalocyanine on Pseudomonas aeruginosa
Lasers in Medical Science - Tập 33 - Trang 79-88 - 2017
At the present time, photodynamic inactivation (PDI) is receiving considerable interest for its potential as an antimicrobial therapy. The results of our study indicate that enhancement of the phototoxic effect on Pseudomonas aeruginosa can be achieved by combination of tetrasulfonated hydroxyaluminum phthalocyanine (AlPcS4) and bimetallic gold/silver nanoparticles (Au/Ag-NPs) synthesized by the c...... hiện toàn bộ
Theoretical limits to soft-tissue damage by Er:YAG and Ho:YAG lasers
Lasers in Medical Science - Tập 4 Số S1 - Trang 25-30 - 1989
Evidence of changes in sural nerve conduction mediated by light emitting diode irradiation
Lasers in Medical Science - Tập 20 - Trang 35-40 - 2005
The introduction of light emitting diode (LED) devices as a novel treatment for pain relief in place of low-level laser warrants fundamental research on the effect of LED devices on one of the potential explanatory mechanisms: peripheral neurophysiology in vivo. A randomised controlled study was conducted by measuring antidromic nerve conduction on the peripheral sural nerve of healthy subjects (n...... hiện toàn bộ
The sensitivity in the IR spectrum of the intact and pathological tissues by laser biophotometry
Lasers in Medical Science - Tập 29 - Trang 581-588 - 2013
In this paper, we use the laser biophotometry for in vivo investigations, searching the most sensitive interactions of the near-infrared spectrum with different tissues. The experimental methods are based on the average reflection coefficient (ARC) measurements. For healthy persons, ARC is the average of five values provided by the biophotometer. The probe is applied on dry skin with minimum pilos...... hiện toàn bộ
Clinical research of holmium laser therapy in extramammary Paget’s disease
Lasers in Medical Science - - 2014
Growth inhibition effect of HMME-mediated PDT on hepatocellular carcinoma HepG2 cells
Lasers in Medical Science - Tập 29 - Trang 1715-1722 - 2014
Photodynamic therapy (PDT) is considered a promising new strategy for liver cancer treatment. Three elements of PDT—optical output power, irradiation time, and photosensitizer concentration—play important roles in promoting cell death. This research aimed to characterize the effects of hematoporphyrin monomethyl ether (HMME)-based PDT on hepatocellular carcinoma cells HepG2 and thus elucidate the ...... hiện toàn bộ
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