Abstract：
:Infrared laser therapy is used for skeletal muscle repair based on its biostimulative effect on satellite cells. However, shortening of telomere length limits regenerative potential in satellite cells, which occurs after each cell division cycle. Also, laser therapy could be more effective on non-physiologic tissues. This study evaluated low-level infrared laser exposure effects on mRNA expression from muscle injury repair and telomere stabilization genes in myoblasts in normal and stressful conditions. Laser fluences were those used in clinical protocols. C2C12 myoblast cultures were exposed to low-level infrared laser (10, 35, and 70 J/cm(2)) in standard or normal (10 %) and reduced (2 %) fetal bovine serum concentrations; total RNA was extracted for mRNA expression evaluation from muscle injury repair (MyoD and Pax7) and chromosome stabilization (TRF1 and TRF2) genes by real time quantitative polymerization chain reaction. Data show that low-level infrared laser increases the expression of MyoD and Pax7 in 10 J/cm(2) fluence, TRF1 expression in all fluences, and TRF2 expression in 70 J/cm(2) fluence in both 10 and 2 % fetal bovine serum. Low-level infrared laser increases mRNA expression from genes related to muscle repair and telomere stabilization in myoblasts in standard or normal and stressful conditions.
journal_name
Lasers Med Scijournal_title
Lasers in medical scienceauthors
da Silva Neto Trajano LA,Stumbo AC,da Silva CL,Mencalha AL,Fonseca ASdoi
10.1007/s10103-016-1956-1subject
Has Abstractpub_date
2016-08-01 00:00:00pages
1161-7issue
6eissn
0268-8921issn
1435-604Xpii
10.1007/s10103-016-1956-1journal_volume
31pub_type
杂志文章abstract：:There is concern that the delicate fibres and cylindrical diffuser tips used for intraluminal PDT of blood vessels might break during the treatment. We have developed and tested a simple system to monitor for fibre breakage during PDT. Light from the laser is passed through a beam expander, then a beam splitter, and t...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-003-0270-x
更新日期：2003-01-01 00:00:00
abstract：INTRODUCTION:In-transit cutaneous malignant melanoma metastases remains a difficult and distressing disease. It is a sequela to the primary lesion represented by melanoma deposits between the site of excision and the draining lymph nodes. We present our experience of carbon dioxide ablation of in-transit cutaneous mali...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-008-0580-0
更新日期：2009-05-01 00:00:00
abstract：:The erbium:YSGG and erbium:YAG lasers are used for tissue ablation in dermatology, dentistry and ophthalmology. The purpose of this study was to compare germanium oxide and sapphire optical fibres for transmission of sufficient Q-switched erbium laser pulse energies for potential use in both soft and hard tissue ablat...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-004-0316-8
更新日期：2004-01-01 00:00:00
abstract：:In view of the limitations of bone reconstruction surgeries using autologous grafts as a gold standard, tissue engineering is emerging as an alternative, which permits the fabrication and improvement of scaffolds to stimulate osteogenesis and angiogenesis, processes that are essential for bone repair. Polymers are use...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-019-02864-8
更新日期：2020-06-01 00:00:00
abstract：:Different ablation techniques have been utilized in the treatment of Barrett's esophagus (BE) to reduce the risk of degeneration. Treatment complications, risk of recurrence, and buried intestinal metaplasia (IM) are all major concerns. The effect of diode laser treatment on BE, studied in a group of patients over a l...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-010-0836-3
更新日期：2011-03-01 00:00:00
abstract：:In periodontal therapy, the use of low-level diode lasers has recently been considered to improve wound healing of the gingival tissue. However, its effects on human gingival epithelial cells (HGECs) remain unknown. The aim of the present study was to examine whether high-frequency low-level diode laser irradiation st...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-013-1292-7
更新日期：2014-07-01 00:00:00
abstract：:Biostimulatory effect of cell proliferation and bone formation by laser irradiation has been reported, however, very little is known about the molecular basis of mechanisms. We previously constructed the cDNA library of mouse osteoblastic cells (MC3T3-E1) which enhanced gene expression by laser irradiation using a sub...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/pl00011357
更新日期：2001-01-01 00:00:00
abstract：:The objective of this study was to assess the effects of 780-nm low-level laser therapy at different periods of 7, 14 and 21 days after cryolesion, including the dose (10 or 50 J/cm(2)), to promote a better muscle repair evidenced by histopathological and immunohistochemical analyses. Fifty-four male rats were divided...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-013-1277-6
更新日期：2014-01-01 00:00:00
abstract：:In the present study, we demonstrated the use of nanoporous zinc oxide (ZnO NPs) in photodynamic therapy. The ZnO NPs structure possesses a high surface to volume ratio due to its porosity and ZnO NPs can be used as an efficient photosensitizer carrier system. We were able to grow ZnO NPs on the tip of borosilicate gl...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-011-0989-8
更新日期：2012-05-01 00:00:00
abstract：:In order to design and manufacture a reliable biomedical sensor, sensitive tests have to be performed. This is of superlative importance as it has to be used for the general public. Keeping this into account, the test mechanism of such an extremely sensitive sensor is being done that involves exhaustive protocols rega...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-019-02945-8
更新日期：2020-09-01 00:00:00
abstract：:The aim of this study was to identify biochemical changes in sciatic nerve (SN) after crush injury and low-level laser therapy (LLLT) with 660 nm and 808 nm by Raman spectroscopy (RS) analysis. A number of 32 Wistar rats were used, divided into four groups (control 1, control 2, LASER 660 nm, and LASER 808 nm). All an...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-018-2627-1
更新日期：2019-04-01 00:00:00
abstract：:The aims of this study were to evaluate the effects of Photogem®-mediated photosensitization on rat palatal mucosa and the biodistribution of the photosensitizer in this tissue. A solution of Photogem® (500 or 1000 mg/l) was applied to the palatal mucosa for 30 min and the exposure time to blue LED (460 nm) was 20 min...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-011-0909-y
更新日期：2012-03-01 00:00:00
abstract：:The authors tested the diagnostic potential of the portable autofluorescence optical system that was developed in the preoperative evaluation of resection margins, and thus of the resection line safety in patients with low-positioned colorectal carcinoma. A total of 217 spectral measurements of the fluorescence proper...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-010-0847-0
更新日期：2011-05-01 00:00:00
abstract：:A novel skin phantom is described that is constructed with quantifiable amounts of skin pigments, as well as a light scattering medium in the form of barium sulphate suspension. The two predominant skin pigments (melanin and haemoglobin) are varied in controlled amounts within the phantoms to simulate skin colour in d...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-007-0495-1
更新日期：2008-10-01 00:00:00
abstract：:The potential of laser-induced fluorescence (LIF) spectroscopy for the characterization of different stages of dental caries using 404-nm diode laser excitation was investigated. In vitro spectra from 16 sound, 10 noncavitated carious and 10 cavitated carious molar teeth were recorded on a miniature fibre-optic spectr...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-010-0771-3
更新日期：2011-05-01 00:00:00
abstract：:Gingival melanin hyperpigmentation is an esthetic concern for many individuals. In this study, we compared the standard surgical removal method with two different Er,Cr:YSGG laser settings in order to find the best treatment method. In 33 dental arches, the following three treatment groups were comparatively evaluated...
journal_title：Lasers in medical science
pub_type： 杂志文章,随机对照试验
doi：10.1007/s10103-018-2501-1
更新日期：2018-11-01 00:00:00
abstract：:The aim of this study is to evaluate the effectiveness of the low-level laser therapy (LLLT) in the control of pain, swelling, and trismus associated with surgical removal of impacted lower third molars. Thirty patients were randomized into two treatment groups, each with 15 patients-group test (LLLT) and a group cont...
journal_title：Lasers in medical science
pub_type： 杂志文章,随机对照试验
doi：10.1007/s10103-012-1174-4
更新日期：2013-05-01 00:00:00
abstract：:. The goal of this study is an in vitro evaluation of thermal side-effects by the application of short sub- micro s CO(2) laser pulses in combination with an air-water spray on different types of bone tissue. A mechanically Q-switched CO(2) laser delivered 300 ns pulses at 9.6 micro m wavelength, which were focused do...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s101030200038
更新日期：2002-01-01 00:00:00
abstract：:Laser therapy is able to modulate cell metabolism and accelerate the repair of fracture. Little attention has been given to the effect of laser on bone with osteopenia or osteoporosis. The purpose of our study was to verify the effect of laser therapy in combination with bisphosphonate on osteopenic bone structure. Th...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-008-0568-9
更新日期：2009-05-01 00:00:00
abstract：:Two-photon excited fluorescence (TPEF) microscopy, based on signal from cells, can provide detailed information on tissue architecture and cellular morphology in unstained histological sections to generate subcellular-resolution images from tissue directly. In this paper, we used TPEF microscopy to image microstructur...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-014-1652-y
更新日期：2015-01-01 00:00:00
abstract：:The effects of He-Ne laser irradiation on erythrocyte hemolysis were studied. Erythrocytes are prone to be easily damaged with hemolysis under laser irradiation. It was found that the power density (PD) of laser irradiation, but not the total irradiation power, is the crucial parameter for the hemolysis. Under irradia...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-004-0320-z
更新日期：2004-01-01 00:00:00
abstract：:Several studies suggest a biomodulatory influence of low-level laser irradiation in the inflammatory and reparative processes of dental tissues. The aim of this study was to investigate the stimulatory effect of 808-nm laser irradiation on root development of rat molars and also to evaluate the histological reaction o...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-011-0935-9
更新日期：2012-05-01 00:00:00
abstract：:Striae gravidarum is a common dermatologic condition for females caused by multiple factors during pregnancy. It remains a therapeutic challenge especially in the striae alba (SA) stage, generating psychological and emotional distress to those affected. This study aims to compare the efficacy and safety of 1565-nm non...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-020-03203-y
更新日期：2021-01-07 00:00:00
abstract：:Facial freckles are a cosmetic concern to Egyptians, particularly young females. Several therapeutic lines exist with variable response rates and limitations. Fractional carbon dioxide (FCO2) laser provides minimal ablation and therefore less down time and less side effects. The efficacy and safety of this laser techn...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-014-1610-8
更新日期：2014-11-01 00:00:00
abstract：:The objective of this study was to evaluate the microbiological and clinical outcomes following nonsurgical treatment by either scaling and root planing, combination of Nd:YAG and Er:YAG lasers, or by Er:YAG laser treatment alone. The study involved 60 patients with generalized chronic periodontitis, randomly assigned...
journal_title：Lasers in medical science
pub_type： 杂志文章,随机对照试验
doi：10.1007/s10103-018-2491-z
更新日期：2018-09-01 00:00:00
abstract：:This study aimed to analyze the effects of light-emitting diode (LED) therapy on sternotomy pain and healing in patients who underwent coronary artery bypass grafting (CABG). The patients were followed for 6 months after the surgery to determine their dehiscence. This study was conducted with 90 volunteers who electiv...
journal_title：Lasers in medical science
pub_type： 杂志文章,随机对照试验
doi：10.1007/s10103-013-1503-2
更新日期：2014-05-01 00:00:00
abstract：:The present investigation focuses on understanding the role of photobiomodulation in enhancing tissue proliferation. Circular excision wounds of diameter 1.5 cm were created on Swiss albino mice and treated immediately with 2 J/cm2 and 10 J/cm2 single exposures of the Helium-Neon laser along with sham-irradiated contr...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-020-03202-z
更新日期：2020-11-27 00:00:00
abstract：:The purpose of this study is twofold: (1) to determine the feasibility of optical coherence tomography (OCT) to differentiate normal and diseased tissue of the neck region intraoperatively and (2) to evaluate how accurately a cohort of test subjects can identify various tissue types when shown a sample set of OCT imag...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-020-03024-z
更新日期：2020-04-27 00:00:00
abstract：:Primary hepatocellular carcinoma (HCC) and colon carcinoma are two of the most common clinical malignancies along with high morbidity and mortality. As low-power laser irradiation (LPLI) can induce cytotoxicity or cell apoptosis on several types of hyperplasia, LPLI may be a potential alternative treatment for gastroe...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-019-02869-3
更新日期：2020-04-01 00:00:00
abstract：:This study aimed to evaluate in vitro performance of near-infrared laser transillumination (NIR-LTI) for detecting early occlusal caries in permanent teeth and compare it with quantitative light-induced fluorescence (QLF), DIAGNOdent Pen (DDPen), and conventional radiography (CR). Ninety-four occlusal surfaces present...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-014-1704-3
更新日期：2015-09-01 00:00:00
