2,613 results match your criteria Lasers in Medical Science [Journal]


Label-free diagnosis of lung cancer with tissue-slice surface-enhanced Raman spectroscopy and statistical analysis.

Lasers Med Sci 2019 Apr 13. Epub 2019 Apr 13.

Shandong Province Key Laboratory of Medical Physics and Image Processing Technology, School of Physics and Electronics, Shandong Normal University, Jinan, 250014, China.

Despite the rapid development of medical science, the diagnosis of lung cancer is still quite challenging. Due to the ultrahigh detection sensitivity of surface-enhanced Raman spectroscopy (SERS), SERS has a broad application prospect in biomedicine, especially in the field of tumor blood detection. Although Raman spectroscopy can diagnose lung cancer through tissue slices, its weak cross sections are problematic. Read More

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http://dx.doi.org/10.1007/s10103-019-02781-wDOI Listing

New concept for treating urinary incontinence after radical prostatectomy with radiofrequency: phase 1 clinical trial.

Lasers Med Sci 2019 Apr 15. Epub 2019 Apr 15.

Bahiana School of Medicine and Public Health, Av. Dom Joao VI, 275, Brotas, Salvador, Bahia, 40290-000, Brazil.

To describe the clinical response and side effects of radiofrequency treatment in patients with urinary incontinence after radical prostatectomy. This is a phase 1 clinical trial with 10 men up to 65 years of age who had urinary incontinence after radical prostatectomy, post void residual volume < 50 ml verified by ultrasonography, pad test ≥ 1 g, and PSA < 0.2 ng/ml. Read More

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http://dx.doi.org/10.1007/s10103-019-02784-7DOI Listing

A randomized, investigator-blinded, controlled, split-scalp study of the efficacy and safety of a 1550-nm fractional erbium-glass laser, used in combination with topical 5% minoxidil versus 5% minoxidil alone, for the treatment of androgenetic alopecia.

Lasers Med Sci 2019 Apr 13. Epub 2019 Apr 13.

Division of Dermatology, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, 270 Rama VI Road, Ratchathewi, Bangkok, 10400, Thailand.

Fractional 1550-nm erbium-glass (Er:Glass) laser therapy is effective in inducing hair regrowth. Combining fractional Er:Glass laser therapy with topical minoxidil may yield therapeutic benefits for patients with androgenetic alopecia (AGA). To compare the efficacy and safety of fractional Er:Glass laser used in combination with topical 5% minoxidil versus 5% minoxidil alone for the treatment of male AGA, 30 men with AGA were randomized to 24 weeks of split-scalp treatment using fractional Er:Glass laser and 5% minoxidil on one side (combined therapy) or 5% minoxidil alone on the other side (monotherapy). Read More

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http://dx.doi.org/10.1007/s10103-019-02783-8DOI Listing

Effects of photobiomodulation in the treatment of fractures: a systematic review and meta-analysis of randomized clinical trials.

Lasers Med Sci 2019 Apr 13. Epub 2019 Apr 13.

Postgraduate Program in Biophotonics Applied to Health Sciences, Universidade Nove de Julho (UNINOVE), São Paulo, Brazil.

Several therapeutic strategies have been proposed to optimize the conventional treatment of fractures. Photobiomodulation (PBM) appears to help reduce pain and control inflammation, and it also accelerates bone repair. This systematic review aimed to evaluate the effectiveness and safety of PBM with low-level laser therapy (LLLT) in the bone fracture healing process. Read More

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http://link.springer.com/10.1007/s10103-019-02779-4
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http://dx.doi.org/10.1007/s10103-019-02779-4DOI Listing
April 2019
5 Reads

Photobiomodulation-induced analgesia in experimental temporomandibular disorder involves central inhibition of fractalkine.

Lasers Med Sci 2019 Apr 10. Epub 2019 Apr 10.

Laboratory of Neuromodulation of Experimental Pain, Department of Anatomy, Insitute of Biomedical Sciences, University of São Paulo, Av. Professor Lineu Prestes 2415, ICB III, Cidade Universitária, Sao Paulo, 05508-900, Brazil.

Temporomandibular disorder (TMD) is a collective term that encompasses a set of clinical problems that affect the masticatory muscles, the temporomandibular joint, and associated structures. Despite their high clinical prevalence, the mechanisms of chronic craniofacial muscle pain are not yet well understood. Treatments for TMD pain relief and control should be minimally invasive, reversible, and conservative. Read More

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http://dx.doi.org/10.1007/s10103-019-02785-6DOI Listing

A transient protective effect of low-level laser irradiation against disuse-induced atrophy of rats.

Lasers Med Sci 2019 Apr 4. Epub 2019 Apr 4.

Department of Pediatrics, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan.

Satellite cells, a population of skeletal muscular stem cells, are generally recognized as the main and, possibly, the sole source of postnatal muscle regeneration. Previous studies have revealed the potential of low-level laser (LLL) irradiation in promoting satellite cell proliferation, which, thereby, boosts the recovery of skeletal muscle from atrophy. The purpose of this study is to investigate the beneficial effect of LLL on disuse-induced atrophy. Read More

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http://dx.doi.org/10.1007/s10103-019-02778-5DOI Listing

Ultraviolet A/blue light-emitting diode therapy for vulvovaginal candidiasis: a case presentation.

Lasers Med Sci 2019 Apr 3. Epub 2019 Apr 3.

Bahiana School of Medicine and Public Health, Av. Dom Joao VI, 275, Brotas, Salvador, Bahia, 40290-000, Brazil.

Vulvovaginal candidiasis (VVC) is a frequent infection of the female genitourinary tract. It is considered the second most common genital infection in women, after bacterial vaginosis. VVC is treated with oral or topical azole derivatives. Read More

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http://dx.doi.org/10.1007/s10103-019-02782-9DOI Listing
April 2019
2 Reads

Effect of quality-switched laser exposure in patients with history of edible gold consumption.

Lasers Med Sci 2019 Apr 3. Epub 2019 Apr 3.

Division of Dermatology, King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia.

Injectable gold is known to deposit in the dermis for life, and such patients are at risk of developing chrysiasis post-laser exposure. It is unknown if patients with history of edible gold consumption would develop a similar reaction after quality-switched laser exposure. Our aim is to assess if patients with history of edible gold consumption develop chrysiasis after quality-switched laser exposure. Read More

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http://dx.doi.org/10.1007/s10103-019-02780-xDOI Listing
April 2019
4 Reads

Improved detection of subgingival calculus by laser fluorescence over differential reflectometry.

Lasers Med Sci 2019 Apr 2. Epub 2019 Apr 2.

School of Dentistry, The University of Queensland, UQ Oral Health Centre, 288 Herston Road, Herston, QLD, 4006, Australia.

Laser fluorescence (LF) and differential reflectometry (DR) are two new optical methods which have been used to help diagnose subgingival deposits of dental calculus. This study compared the performance of LF using the KEY3 laser system versus DR using the DetecTar system under controlled laboratory conditions designed to simulate clinical conditions as much as possible. A total of 30 extracted human posterior teeth were set in an anatomical configuration in stone typodonts with impression material replicating the periodontal soft tissues. Read More

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http://link.springer.com/10.1007/s10103-019-02777-6
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http://dx.doi.org/10.1007/s10103-019-02777-6DOI Listing
April 2019
3 Reads

Different photodynamic effects of blue light with and without riboflavin on methicillin-resistant Staphylococcus aureus (MRSA) and human keratinocytes in vitro.

Lasers Med Sci 2019 Mar 30. Epub 2019 Mar 30.

Department of Clinical Research Laboratory, Faculty of Medicine and Health, Örebro University, Örebro, Sweden.

Methicillin-resistant Staphylococcus aureus (MRSA) is an important cause of infections in humans. Photodynamic therapy using blue light (450 nm) could possibly be used to reduce MRSA on different human tissue surfaces without killing the human cells. It could be less harmful than 300-400 nm light or common disinfectants. Read More

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http://dx.doi.org/10.1007/s10103-019-02774-9DOI Listing

Photobiomodulation of red and green lights in the repair process of third-degree skin burns.

Lasers Med Sci 2019 Mar 28. Epub 2019 Mar 28.

Postgraduate Program in Dentistry, State University of Paraiba, R. Baraúnas, 531, Bodocongó, Campina Grande, PB, 58429-500, Brazil.

The aim of this study was to evaluate the photobiomodulation of red and green lights in the repair process of third-degree skin burns in rats through clinicopathological and immunohistochemical parameters. Sixty male Wistar rats were divided into three groups: control (CTRL) (n = 20), red LED (RED) (n = 20), and green LED (GREEN) (n = 20), with subgroups (n = 5) for each time of euthanasia (7, 14, 21, and 28 days). Daily applications in RED (λ630 ± 10 nm, 300 mW) and GREEN groups (λ520 ± 30 nm, 180 mW) were performed at four points of the wound (total 36 J/cm in RED and 240 J/cm in GREEN). Read More

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http://dx.doi.org/10.1007/s10103-019-02776-7DOI Listing
March 2019
1 Read

Photobiomodulation therapy at different wavelength impacts on retinoid acid-dependent SH-SY5Y differentiation.

Lasers Med Sci 2019 Mar 25. Epub 2019 Mar 25.

Institute for Maternal and Child Health, IRCCS "Burlo Garofolo", Via dell'Istria 65/1, 34137, Trieste, Italy.

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http://dx.doi.org/10.1007/s10103-019-02765-wDOI Listing

Predictability of gastric intestinal metaplasia by patchy lavender color seen on linked color imaging endoscopy.

Lasers Med Sci 2019 Mar 22. Epub 2019 Mar 22.

Department of Gastrointestinal Endoscopy, Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, the Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510655, Guangdong, People's Republic of China.

We aimed to investigate the ability of linked color imaging (LCI) versus white light endoscopy (WLE) to detect gastric intestinal metaplasia (GIM). One hundred and seven participants who underwent upper gastrointestinal endoscopy were included. Under WLE endoscopy, biopsies were performed on any suspected abnormal mucosal changes. Read More

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http://dx.doi.org/10.1007/s10103-019-02775-8DOI Listing
March 2019
2 Reads

Laser asymmetric ablation method to improve corneal shape.

Lasers Med Sci 2019 Mar 22. Epub 2019 Mar 22.

ShapeVision Co., Hwaseong City, Republic of Korea.

This study aims to assess whether central-symmetric corneal thickness reduces off-centered corneal shift caused by intraocular pressure (IOP). In this retrospective study, 122 healthy eyes of 62 presbyopic patients, mostly myopic, were divided into two groups. Two distinct asymmetric corneal ablations were applied in peripheral presbyopia correction to produce central-symmetric corneal thickness, which reduces the off-centered corneal shift by utilizing intraocular pressure. Read More

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http://dx.doi.org/10.1007/s10103-019-02770-zDOI Listing

Topical and intradermal delivery of PpIX precursors for photodynamic therapy with intense pulsed light on porcine skin model.

Lasers Med Sci 2019 Mar 22. Epub 2019 Mar 22.

São Carlos Institute of Physics, University of São Paulo (USP), São Carlos, São Paulo, Brazil.

In order to purposely decrease the time of the photodynamic therapy (PDT) sessions, this study evaluated the effects of PDT using topical and intradermal delivery of two protoporphyrin (PpIX) precursors with intense pulsed light (IPL) as irradiation source. This study was performed on porcine skin model, using an IPL commercial device (Intense Pulse Light, HKS801). IPL effect on different administration methods of two PpIX precursors (ALA and MAL) was investigated: a topical cream application and an intradermal application using a needle-free, high-pressure injection system. Read More

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http://dx.doi.org/10.1007/s10103-019-02771-yDOI Listing
March 2019
2 Reads

Changes in local skin temperature after the application of a pulsed Nd:YAG laser to healthy subjects: a prospective crossover controlled trial.

Lasers Med Sci 2019 Mar 22. Epub 2019 Mar 22.

Faculty of Applied Medical Science, Umm Al-Qura University, Mecca, Saudi Arabia.

Pulsed Nd:YAG laser (1064 nm) is a recent modality that is used for the rehabilitation of musculoskeletal disorders, but there is no evidence about its thermal effects. The aim of the study was to investigate the changes in local skin temperature (LST) after the application of a pulsed Nd:YAG laser to healthy subjects. The study participants were 30 male subjects with an average age of 21. Read More

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http://dx.doi.org/10.1007/s10103-019-02769-6DOI Listing
March 2019
4 Reads

Antimicrobial photodynamic therapy against clinical isolates of carbapenem-susceptible and carbapenem-resistant Acinetobacter baumannii.

Lasers Med Sci 2019 Mar 20. Epub 2019 Mar 20.

Department of Biosciences and Oral Diagnosis, Institute of Science and Technology, São Paulo State University (UNESP), Av. Engenheiro Francisco José Longo 777, São Dimas, São José dos Campos, São Paulo, 12245-000, Brazil.

Infections caused by Acinetobacter baumannii have become a challenge for healthcare professionals because of the rapid increase in Gram-negative bacteria resistant to carbapenem antibiotics. The objective of this study was to evaluate the effect of antimicrobial photodynamic therapy (aPDT) against different strains of A. baumannii isolated from patients with infectious process and hospitalized at the intensive care unit of the hospitals of São Jose dos Campos, São Paulo. Read More

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http://dx.doi.org/10.1007/s10103-019-02773-wDOI Listing

Influence of radiant exposure and repetition rate in infrared neural stimulation with near-infrared lasers.

Lasers Med Sci 2019 Mar 18. Epub 2019 Mar 18.

Cardiac Electrophysiology Research Center, Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran.

In this study, we combine heat diffusion equation and modified Hodgkin-Huxley axonal model to investigate how an action potential is generated during infrared neural stimulation. The effects of temporal and spatial distribution of heat induced by infrared pulsed lasers on variation of electrical membrane capacitance are investigated. These variations can lead to depolarize the membrane and generate an action potential. Read More

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http://dx.doi.org/10.1007/s10103-019-02741-4DOI Listing
March 2019
2 Reads

Transcutaneous transmission of photobiomodulation light to the spinal canal of dog as measured from cadaver dogs using a multi-channel intra-spinal probe.

Lasers Med Sci 2019 Mar 16. Epub 2019 Mar 16.

LiteCure LLC, Carlsbad, CA, 92008, USA.

The target level photobiomodulation (PBM) irradiances along the thoracic to lumbar segment of the interior spinal canal in six cadaver dogs resulting from surface illumination at 980 nm were measured. Following a lateral hemi-laminectomy, a flexible probe fabricated on a plastic tubular substrate of 6.325 mm diameter incorporating nine miniature photodetectors was embedded in the thoracic to lumbar segment of the spinal canal. Read More

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http://dx.doi.org/10.1007/s10103-019-02761-0DOI Listing

Comparison of 0.9-mm and 1.4-mm catheters in excimer laser coronary angioplasty for acute myocardial infarction.

Lasers Med Sci 2019 Mar 16. Epub 2019 Mar 16.

Department of Cardiovascular Medichine, Tokyo Medical and Dental Hospital, Tokyo, Japan.

Excimer laser coronary angioplasty (ELCA) is a unique revascularization modality that can vaporize plaque and thrombus. Compared to thrombus aspiration therapy, ELCA is reported to provide better microcirculation and reduced peripheral embolism in treatment for acute coronary syndrome. Excimer laser catheters come in various sizes, and we sought to compare the 0. Read More

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http://link.springer.com/10.1007/s10103-019-02772-x
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http://dx.doi.org/10.1007/s10103-019-02772-xDOI Listing
March 2019
4 Reads

Inverse heat transfer analysis in detecting tissue optical properties using laser.

Lasers Med Sci 2019 Mar 15. Epub 2019 Mar 15.

Laser and Optoelectronics Engineering Department, University of Technology, Baghdad, Iraq.

A new methodology has been proposed to measure optical properties of homogeneous tissue where a laser beam is used to induce heat to a tissue. The induced heat increased the temperature inside the tissue, which is detected by a thermocouple. These readings are compared with that obtained from the solution of the finite element solution that used iterative values of optical properties in determining temperature distribution. Read More

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http://dx.doi.org/10.1007/s10103-019-02767-8DOI Listing
March 2019
1 Read

Modified optical coefficient measurement system for bulk tissue using an optical fiber insertion with varying field of view and depth at the fiber tip.

Lasers Med Sci 2019 Mar 13. Epub 2019 Mar 13.

School of Fundamental Science and Technology, Graduate School of Science and Technology, Keio University, 3-14-1, Hiyoshi, Kohoku-ku, Yokohama City, Kanagawa, 223-8522, Japan.

To measure the few millimeter-scale macroscopic optical properties of biological tissue, including the scattering coefficient, while avoiding the instability that originates from sample slicing preparation processes, we performed propagated light intensity measurements through an optical fiber that punctures the bulk tissue while varying the fiber tip depth and the field of view (FOV) at the tip; the results were analyzed using the inverse Monte Carlo method. We realized FOV changes at the fiber tip in the bulk tissue using a variable aperture that was located outside the bulk tissue through a short high-numerical aperture (high-NA) multi-mode fiber with a quasi-straight shape. Using a homogeneous optical model solution, we verified the principle and operation of the constructed experimental system. Read More

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http://dx.doi.org/10.1007/s10103-019-02756-xDOI Listing
March 2019
1 Read

Correction to: Photobiomodulation can alter mRNA levels cell death-related.

Lasers Med Sci 2019 Mar 12. Epub 2019 Mar 12.

Departamento de Morfologia, Instituto de Ciências Biológicas, Universidade Federal de Juiz de Fora, Rua José Lourenço Kelmer, s/ n-Campus Universitário, São Pedro, Juiz de Fora, Minas Gerais, 36036-900, Brazil.

The authors wish to clarify that Fávia de Paoli refers to "Flávia de Paoli". The authors apologise for this error. Read More

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http://link.springer.com/10.1007/s10103-019-02764-x
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http://dx.doi.org/10.1007/s10103-019-02764-xDOI Listing
March 2019
7 Reads

Evaluation of nonlinear optical behavior of mouse colon cancer cell line CT26 in hyperthermia treatment.

Lasers Med Sci 2019 Mar 11. Epub 2019 Mar 11.

Biophotonics Lab, Applied Science Research Center (ASRC), Kharazmi University, Karaj, Iran.

Hyperthermia treatment can induce component changes on cell. This study explored the potential of Z-scan to improve accuracy in the identification of subtle differences in mouse colon cancer cell line CT26 during hyperthermia treatment. Twenty-one samples were subjected individually to treatment of hyperthermia at 41, 43, and 45 °C. Read More

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http://dx.doi.org/10.1007/s10103-019-02759-8DOI Listing
March 2019
3 Reads
2.489 Impact Factor

Enhancing Er:YAG bactericidal effect against Enterococcus faecalis biofilm in vitro.

Lasers Med Sci 2019 Mar 8. Epub 2019 Mar 8.

Department of Periodontology, The Hebrew University-Hadassah School of Dental Medicine, Jerusalem, Israel.

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http://dx.doi.org/10.1007/s10103-019-02763-yDOI Listing
March 2019
1 Read

Thulium vapoenucleation of the prostate (ThuVEP) for prostates larger than 85 ml: long-term durability of the procedure.

Lasers Med Sci 2019 Mar 5. Epub 2019 Mar 5.

Department of Urology, Asklepios Hospital Barmbek, Rübenkamp 220, 22291, Hamburg, Germany.

The purpose of this prospective study of 90 consecutive patients is to assess the long-term durability of ThuVEP in patients with benign prostatic hyperplasia (BPH) and prostate volumes ≥ 85 ml. Ninety patients with prostates ≥ 85 ml underwent ThuVEP between 2008 and 2010 at our institution. Patient demographics and short-term and long-term follow-up were evaluated. Read More

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http://link.springer.com/10.1007/s10103-019-02760-1
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http://dx.doi.org/10.1007/s10103-019-02760-1DOI Listing
March 2019
7 Reads

Low-level laser therapy as a modifier of erythrocytes morphokinetic parameters in hyperadrenalinemia.

Lasers Med Sci 2019 Mar 4. Epub 2019 Mar 4.

Department of Physiology and Biochemistry of Animals, Nizhny Novgorod State Agricultural Academy, 97 Gagarin Ave., Nizhny Novgorod, 603107, Russia.

Low-level laser therapy (LLLT) is widely used in clinical practice for treatment of various pathologies. It is assumed that LLLT impact on microcirculation is among the mechanisms underlying its therapeutic effect. The microcirculation disorder is observed in the pathogenesis of any inflammatory process and is significantly influenced by red blood cells (RBCs). Read More

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http://dx.doi.org/10.1007/s10103-019-02755-yDOI Listing
March 2019
5 Reads

Polarization-resolved Stokes-Mueller imaging: a review of technology and applications.

Lasers Med Sci 2019 Mar 4. Epub 2019 Mar 4.

Department of Biophysics, School of Life Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India.

Polarization microscopy, a powerful optical tool to study anisotropic properties of biomolecules, provides better microstructural information of a sample as compared with conventional optical microscopic techniques. The measurement and analysis of polarization states of light can be performed using both Jones matrix as well as Stokes algebra. Further, the details of optical properties of specimen are characterized by Mueller matrix. Read More

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http://dx.doi.org/10.1007/s10103-019-02752-1DOI Listing
March 2019
1 Read

Influence of grape seed extract in adhesion on dentin surfaces conditioned with Er,Cr:YSGG laser.

Lasers Med Sci 2019 Mar 4. Epub 2019 Mar 4.

Department of Operative Dentistry, University Hospital RWTH Aachen, Pauwelsstraße 30, 52074, Aachen, Germany.

The proanthocyanidin (PA)-rich grape seed extract (GSE) is a collagen cross-linking agent that can perform a chemical bond with the dentin's collagen. The objective of this study was to evaluate the influence on shear bond strength (SBS) of the pre-conditioning of GSE, on human dentin surfaces conditioned with Er,Cr:YSGG laser. The sample consisted of 64 non-carious human teeth, divided into eight groups, four groups conditioned with Er,Cr:YSGG laser (4. Read More

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http://dx.doi.org/10.1007/s10103-019-02749-wDOI Listing
March 2019
3 Reads

Methodological correctness of a recent publication on pain entitled "Evaluating the effect of photobiomodulation with a 940-nm diode laser on post-operative pain in periodontal flap surgery".

Authors:
Vahid Rakhshan

Lasers Med Sci 2019 Mar 4. Epub 2019 Mar 4.

Department of Cognitive Neuroscience, Institute for Cognitive Science Studies, Tehran, Iran.

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http://dx.doi.org/10.1007/s10103-019-02743-2DOI Listing

In response to the FDA warning about the use of photomedicine in gynecology.

Lasers Med Sci 2019 Mar 4. Epub 2019 Mar 4.

DIATROS, Clínica de Atención a la Mujer, C/ Aragó 403-405, 08013, Barcelona, Spain.

To alert patients and health care providers about the use of energy-based devices to perform a vaginal "rejuvenation," cosmetic vaginal procedures, or nonsurgical vaginal procedures to treat symptoms related to menopause, urinary incontinence, or sexual function, the US Food and Drug Administration (FDA) has issued a warning about the effectiveness and safety of such devices. We agree with the FDA that certain devices (laser, radiofrequency, etc.) have been marketed inappropriately for uses that are outside of their cleared or approved intended uses. Read More

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http://link.springer.com/10.1007/s10103-019-02744-1
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http://dx.doi.org/10.1007/s10103-019-02744-1DOI Listing
March 2019
4 Reads

Study of transcranial therapy 904 nm in experimental model of stroke.

Lasers Med Sci 2019 Mar 2. Epub 2019 Mar 2.

Laboratório de Neuroanatomia e Neurofisiologia, Universidade Estadual do Centro-Oeste, Simeão Camargo Varela de Sá, 03, Guarapuava, Paraná, 88040-080, Brazil.

Cerebrovascular accidents (CVAs), commonly known as strokes, can damage the brain through vascular injuries caused by either blood vessel blockages (ischemic stroke) or ruptures (hemorrhagic stroke) which disrupt regular brain blood supply and can cause severe damage to the individual. The objective of the present study was to evaluate the effects of photobiomodulation with a light-emitting diode (LED) device (904 nm, 110 mW, 7 J/cm) on neurogenesis, muscle resistance, and motor behavior in animals submitted to an experimental model of hemiplegia. The sample consisted of 30 Wistar rats, divided into two groups: control group (GC) and 904-nm LED-treated group (TG). Read More

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http://dx.doi.org/10.1007/s10103-019-02758-9DOI Listing
March 2019
1 Read

Irradiation by blue light-emitting diode enhances osteogenic differentiation in gingival mesenchymal stem cells in vitro.

Lasers Med Sci 2019 Mar 2. Epub 2019 Mar 2.

Hospital of Stomatology Southwest Medical University, Lu Zhou, 646000, China.

The aim of this study was to investigate the effects of blue light irradiation on the process of osteogenic differentiation in stem cells. The cells used in this study were derived from human gingival mesenchymal stem cells (hGMSCs), and were treated with 0 (control group), 1, 2, 4 or 6 J/cm blue light using blue light-emitting diodes. Cell growth was assessed by the 3-(4,5-Dimethyl-2-thiazolyl)-2,5-Diphenyl-2H-tetrazolium bromide (MTT) cell proliferation assay and osteogenic differentiation was evaluated by monitoring alkaline phosphatase (ALP) activity, alizarin red staining and real-time PCR (RT-PCR). Read More

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http://dx.doi.org/10.1007/s10103-019-02750-3DOI Listing
March 2019
2.489 Impact Factor

Comparison of the efficacy of low-level laser therapy and photodynamic therapy on oral mucositis in rats.

Lasers Med Sci 2019 Mar 2. Epub 2019 Mar 2.

Department of Pathology, Istanbul University, Istanbul, Turkey.

Cancer treatment with chemotherapy or radiotherapy is associated with some side effects including in the oral cavity. One of the more significant oral complications is oral mucositis (OM) which induces severe pain and limits fundamental life behaviors such as eating, drinking, and talking. Although advancements in cancer treatment improved the survival rate, severe OM and opportunistic infection affect treatment adversely. Read More

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http://dx.doi.org/10.1007/s10103-019-02757-wDOI Listing
March 2019
2 Reads

Optimization of hydrogel containing toluidine blue O for photodynamic therapy in treating acne.

Lasers Med Sci 2019 Mar 1. Epub 2019 Mar 1.

College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, China.

Antibiotics and photodynamic therapy (PDT) are widely employed in curing acne. However, antibiotics as an effective treatment would lead to bacterial resistance and severe side effects. In this study, we aimed to develop a novel TBO hydrogel, which could prolong the retention time of photosensitizer (TBO) at the lesion site and improve therapeutic effect. Read More

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http://dx.doi.org/10.1007/s10103-019-02727-2DOI Listing

Photobiomodulation therapy modulates epigenetic events and NF-κB expression in oral epithelial wound healing.

Lasers Med Sci 2019 Feb 28. Epub 2019 Feb 28.

Department of Oral Pathology, School of Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil.

The aim of this study was to evaluate the effect of photobiomodulation therapy (PBMT) on histone 3 acetylation (acH3) and NF-κB expression during oral ulcer healing. A total of 48 male Wistar rats were divided into control group (CG) and PBMT group (n = 24 each). Traumatic ulcers were created in the dorsum of the rats' tongue with a punch tool. Read More

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http://dx.doi.org/10.1007/s10103-019-02745-0DOI Listing
February 2019

Combination laser therapy as a non-surgical method for treating congenital melanocytic nevi from cosmetically sensitive locations on the body.

Lasers Med Sci 2019 Feb 28. Epub 2019 Feb 28.

Department of Plastic and Reconstructive Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita-15, Nishi-7, Kita-ku, Sapporo, 060-8638, Japan.

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http://dx.doi.org/10.1007/s10103-019-02753-0DOI Listing
February 2019

Label-free detection of residual breast cancer after neoadjuvant chemotherapy using biomedical multiphoton microscopy.

Lasers Med Sci 2019 Feb 28. Epub 2019 Feb 28.

Key Laboratory of OptoElectronic Science and Technology for Medicine of Ministry of Education, Fujian Provincial Key Laboratory for Photonics Technology, Fujian Normal University, Fuzhou, 350007, People's Republic of China.

Neoadjuvant chemotherapy has become a standard treatment for breast cancer as it has been shown to increase the rate of breast preservation and to improve outcome in patients. However, how to accurately detect residual tumors is still a challenge. In this work, we tried to use multiphoton imaging to look for residual breast tumors after preoperative therapy. Read More

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http://dx.doi.org/10.1007/s10103-019-02754-zDOI Listing
February 2019
2 Reads

Letter about outcome differences between recanalized malignant central airway obstruction from endoluminal disease versus extrinsic compression.

Lasers Med Sci 2019 Feb 28. Epub 2019 Feb 28.

Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China.

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http://dx.doi.org/10.1007/s10103-019-02737-0DOI Listing
February 2019
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Quadriceps femoris performance after resistance training with and without photobiomodulation in elderly women: a randomized clinical trial.

Lasers Med Sci 2019 Feb 28. Epub 2019 Feb 28.

Department of Rehabilitation Medicine, University of Washington, Seattle, WA, USA.

The study assessed if quadriceps femoris muscle performance of older women can be improved by applying photobiomodulation therapy after a resistance training program. This study is a randomized, controlled trial with concealed allocation, intention-to-treat analysis, and blinded outcome evaluators. Forty-five healthy sedentary older women classified as active or insufficiently active were randomized to groups receiving 8 weeks of quadriceps femoris resistance training plus active group or placebo group, or a control group (no training or photobiomodulation). Read More

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http://dx.doi.org/10.1007/s10103-019-02748-xDOI Listing
February 2019
5 Reads

Photodynamic enhancement of the activity of antibiotics used in urinary tract infections.

Lasers Med Sci 2019 Feb 26. Epub 2019 Feb 26.

Department of Biology and Medical Parasitology, Wrocław Medical University, Mikulicza-Radeckiego 9, 50-367, Wrocław, Poland.

Photodynamic therapy (PDT) has been proven to kill different microbial cells. However, to our knowledge, none of the available reports describes the modulatory effect of this therapy on the antibacterial activity of antibiotics against Escherichia coli rods being the main causative agent of urinary tract infections (UTIs). Therefore, the aim of our study was to verify if the PDT can enhance the antibacterial activity of antibiotics recommended in the treatment of UTIs. Read More

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http://dx.doi.org/10.1007/s10103-019-02730-7DOI Listing
February 2019
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Effectiveness of 405-nm blue LED light for degradation of Candida biofilms formed on PMMA denture base resin.

Lasers Med Sci 2019 Feb 23. Epub 2019 Feb 23.

Department of Oral Medicine and Stomatology, Tsurumi University School of Dental Medicine, 2-1-3, Tsurumi, Tsurumi-ku, Yokohama, Kanagawa, 230-8501, Japan.

This study investigated (i) the degradation effect of 405-nm blue light-emitting diode (LED) light irradiation on Candida albicans and C. glabrata biofilms formed on denture base resin and (ii) the effects of 405-nm blue LED light irradiation on the mechanical and surface characteristics of the resin. Polymethyl methacrylate denture base resin discs were prepared, and C. Read More

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http://dx.doi.org/10.1007/s10103-019-02751-2DOI Listing
February 2019
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In vitro bioactivity of laser surface-treated Ti6Al4V alloy.

Lasers Med Sci 2019 Feb 23. Epub 2019 Feb 23.

Department of Metallurgical and Materials Engineering, Yildiz Technical University, Istanbul, Turkey.

The effects of lasing parameters on the precipitation of hydroxyapatite (HA) on the commercial Ti6Al4V alloy in simulated body fluid (SBF) were investigated. Ti6Al4V plates were polished and ultrasonically cleaned in acetone and ethyl alcohol, respectively. The specimen surfaces were treated with Er:YAG laser using super short pulse (SSP, 50 μs) and very short pulse (VSP, 100 μs) modes. Read More

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http://dx.doi.org/10.1007/s10103-019-02746-zDOI Listing
February 2019
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Observation and mechanism study of bladder wound healing after transurethral holmium laser resection of bladder tumor.

Lasers Med Sci 2019 Feb 22. Epub 2019 Feb 22.

Department of Urology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200080, China.

This research aims to observe and compare the wound healing process of urethral bladder after transurethral holmium laser resection of bladder tumor (HoLRBT) and transurethral resection of bladder tumor (TURBT) and explore the possible mechanism of wound healing and bladder re-epithelialization after HoLRBT. An animal model of canine achieving HoLRBT and TURBT was established. Cystoscopy was performed at different time points (3 days and 1, 2, 3, and 4 weeks) after operation to observe the wound healing and re-epithelialization of bladder epithelium. Read More

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http://dx.doi.org/10.1007/s10103-018-02713-0DOI Listing
February 2019
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The skin rejuvenation associated treatment-Fraxel laser, Microbotox, and low G prime hyaluronic acid: preliminary results.

Lasers Med Sci 2019 Feb 14. Epub 2019 Feb 14.

Department of Oral and Maxillofacial Surgery, University of Verona, Policlinico G.B. Rossi, Piazzale L. Scuro, 10, 37134, Verona, Italy.

Minimally invasive facial rejuvenation procedures reached an all-time high in the 2016. This reveals a growing interest in a smoother, younger, and tighter look accessible using the esthetic medicine tools like botulinum toxin and dermal filler injections, laser, and microdermabrasion. Forty-five patients from 35 to 52 years old (medium age 43. Read More

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http://dx.doi.org/10.1007/s10103-019-02738-zDOI Listing
February 2019
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Effects of low-level laser therapy on the organization of articular cartilage in an experimental microcrystalline arthritis model.

Lasers Med Sci 2019 Feb 14. Epub 2019 Feb 14.

Programa de Pós-graduação em Ciências Biomédicas, Centro Universitário da Fundação Hermínio Ometto - FHO, Av. Dr. Maximiliano Baruto, 500 Jd. Universitário, Araras, SP, 13607-339, Brazil.

The aim of this study was to evaluate the effects of low-level laser therapy using the gallium arsenide laser (λ = 830 nm) on the articular cartilage (AC) organization from knee joint in an experimental model of microcrystalline arthritis in adult male Wistar rats. Seventy-two animals were divided into three groups: A (control), B (induced arthritis), and C (induced arthritis + laser therapy). The arthritis was induced in the right knee using 2 mg of NaPO in 0. Read More

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http://dx.doi.org/10.1007/s10103-019-02740-5DOI Listing
February 2019
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Influence of Er:YAG laser pulse duration on the long-term stability of organic matrix and resin-dentin interface.

Lasers Med Sci 2019 Feb 14. Epub 2019 Feb 14.

Department of Operative Dentistry, School of Dentistry, University of Sao Paulo, Av. Prof. Lineu Prestes, 2227, Cidade Universitária, São Paulo, SP, 05508-000, Brazil.

The purpose of this study was to explore the influence of Er:YAG laser irradiation with different pulse durations on the organic matrix, micromorphology of the hybrid layer (HL), and bond strength over time. Sixty caries-free human molars were cut to obtain flat dentin surfaces which were randomly divided into 4 groups: control (not irradiated-G1) and laser groups (80 mJ/2 Hz) with pulse duration ranging between 50 (G2), 300 (G3), and 600 μs (G4). A self-etch adhesive system (Universal 3M ESPE) was applied on pre-treated dentin surfaces and cylinders of resin composite were built up and stressed in a universal testing machine (μSBS) at 24 h and after12 months (n = 12). Read More

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http://dx.doi.org/10.1007/s10103-019-02739-yDOI Listing
February 2019
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Theoretical and experimental modeling of interstitial laser hyperthermia with surface cooling device using Nd-doped nanoparticles.

Lasers Med Sci 2019 Feb 14. Epub 2019 Feb 14.

Prokhorov General Physics Institute of the Russian Academy of Sciences, Vavilov str. 38, Moscow, Russia, 119991.

To improve methods of laser hyperthermia for the treatment of bulk malignant neoplasms, an urgent task is the development of techniques and devices that automatically control heating at a given tissue depth and ensure its uniformity. The article proposes the concept of a system for performing hyperthermia with real-time spectroscopic temperature control and surface cooling, which allows to record spectra of diffusely scattered radiation and fluorescent signal from various depths of biological tissues by the means of the variation of the angle and distance between the fiber source of laser radiation and the receiving fiber. Theoretical and experimental modeling of the spatial distribution of diffusely scattered radiation and temperature inside the tissue with a fiber optic device providing surface cooling of the irradiated tissue, and recording spectral information from a given depth in real time, is presented. Read More

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http://dx.doi.org/10.1007/s10103-019-02742-3DOI Listing
February 2019
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Voice improvement in patients with recurrent respiratory papillomatosis after combined treatment with cidofovir and CO laser surgery.

Lasers Med Sci 2019 Feb 14. Epub 2019 Feb 14.

Department of Otolaryngology, Head and Neck Surgery Poznań University of Medical Sciences, Przybyszewskiego 49, 60-355, Poznań, Poland.

Mechanical debulking of laryngeal papillomas is associated with voice disorders due to impairment of the vocal fold's mucosa. Intraepithelial injection of cidofovir reduces damage to the laryngeal structures and thus improves vocal parameters. The aim of our study was to compare vocal quality before and after cidofovir and CO laser treatment by means of objective phoniatric parameters and to obtain evidence concerning voice outcomes. Read More

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http://dx.doi.org/10.1007/s10103-019-02735-2DOI Listing
February 2019
3 Reads

Minimally invasive erbium laser treatment for selected snorers.

Lasers Med Sci 2019 Feb 14. Epub 2019 Feb 14.

Department of Otorhinolaryngology and Laryngological Oncology in Zabrze, Medical University of Silesia in Katowice, ul. Poniatowskiego 15, 40-055, Katowice, Poland.

The aim of this paper is to present our results and experience in the treatment of snoring using the non-ablative Erbium: Yttrium Aluminum Garnet (Er:YAG) laser. Twenty-four patients (18 male and 6 female) with snoring problems due to soft palate hypertrophy were treated with 3 treatment procedures with Er:YAG 2940-nm laser (long pulse mode, 10 Hz, fluence 1.8-2. Read More

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http://dx.doi.org/10.1007/s10103-019-02731-6DOI Listing
February 2019
1 Read