Abstract：
:The optical properties of the skin (absorption coefficient, scattering coefficient, refractive index) may serve to characterize the skin and are important for correct light dosimetry in many optical diagnostic procedures and laser treatments especially photodynamic therapy and laser therapy. We determined in vivo the optical properties of tissues near the wrist, elbow and knee in subjects of different ages using diffuse reflectance spectroscopy, having in view the establishment of laser system types for the laser treatment of posttraumatic lesions in subjects of different ages. Diffuse reflection of light from biological tissue is due to the variation in refractive index of tissular and cellular components and the surrounding medium and depends on the wavelength of the incident optical radiation. The diffuse reflectance spectrum of the tissues tested showed two maxima localized at lamda(M1) is approximately 610 nm and lambda(M2) is approximately 675 nm. Laser systems which emit radiation at these wavelengths are not efficient for the treatment of joints, regardless of the subject's age. The deep tissues have a strong absorption in the range 630-700 nm, which indicates that for treating posttraumatic lesions we can use laser systems such as the He-Ne laser, the GaAlAs laser, and the InGaAlAs laser. Using Kramers-Kronig analysis of the diffuse reflectance spectra, the optical parameters n(omega) and k(omega) were determined. The age-dependent changes in these optical parameters of tissue must be taken into consideration and the use of laser treatments or optical diagnosis methods must be based on a knowledge of these properties and of the optical radiation parameters.
journal_name
Lasers Med Scijournal_title
Lasers in medical scienceauthors
Calin MA,Parasca SVdoi
10.1007/s10103-009-0725-9subject
Has Abstractpub_date
2010-03-01 00:00:00pages
269-74issue
2eissn
0268-8921issn
1435-604Xjournal_volume
25pub_type
杂志文章abstract：:The purpose of this article was to analyze the photobiomodulator role of low-level laser therapy (LLLT) on the skeletal muscle remodeling following cryoinjury in rats, focusing the types I and III collagen proteins. Laser phototherapy has been employed to stimulate repair in different tissues. However, its role in ske...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-011-0951-9
更新日期：2011-11-01 00:00:00
abstract：:Nitrogen laser-induced fluorescence (LIF) and tungsten halogen lamp excited diffuse reflectance spectra were recorded in 350- to 700-nm range on a miniature fiber-optic spectrometer from in vitro premolar tooth during various stages of artificial erosion with 36% phosphoric acid. Both the LIF spectral intensity and th...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-007-0489-z
更新日期：2008-07-01 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 present work reports the photo-biomodulatory effect of red (632.8 nm) and near infrared (785 and 830 nm) lasers on burn injury in Swiss albino mice. Animals were induced with a 15-mm full thickness burn injury and irradiated with various fluences (1, 2, 3, 4, and 6 J/cm2) of each laser wavelength under study havin...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-016-2044-2
更新日期：2016-12-01 00:00:00
abstract：:Dermatosis papulosa nigra (DPN) is a common condition of pigmented skin. Whilst lesions are benign, they may be symptomatic or cosmetically disfiguring. Ablative lasers have previously been reported as a useful therapeutic modality in DPN. We report the largest case series to date of patients with DPN ablated with the...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-016-1906-y
更新日期：2016-04-01 00:00:00
abstract：:Low-intensity laser therapy is based on the excitation of endogenous chromophores in biotissues and free-radical generation could be involved in its biological effects. In this work, the effects of the low-intensity infrared laser on plasma protein content and oxidative stress in blood from Wistar rats were studied. B...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-011-0945-7
更新日期：2012-01-01 00:00:00
abstract：:The current study evaluates whether the addition of low-level laser therapy into standard conventional physical therapy in elderly with bilateral symptomatic tri-compartmental knee arthritis can successfully postpone the need for joint replacement surgery. A prospective randomized cohort study of 100 consecutive unsel...
journal_title：Lasers in medical science
pub_type： 杂志文章,随机对照试验
doi：10.1007/s10103-015-1814-6
更新日期：2015-12-01 00:00:00
abstract：:This study assessed the effect of curcumin as a photosensitizer in antimicrobial photodynamic therapy (aPDT) for the treatment of induced periodontitis in rats. Periodontitis was induced via a ligature around the mandibular first molar on the left side of 96 rats. The ligature was removed 7 days later, and the animals...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-017-2261-3
更新日期：2017-11-01 00:00:00
abstract：:To determine the relation between retinal microstructural changes and the response to 577-nm subthreshold micropulse laser (SML) treatment in chronic central serous chorioretinopathy (cCSC). This retrospective study included 39 eyes of 39 patients with cCSC, treated with the 577-nm SML. The eyes were evaluated in thre...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-020-03225-6
更新日期：2021-01-07 00:00:00
abstract：:Osteoarthritis (OA) triggers increased levels of inflammatory markers, including prostaglandin (PG) E2 and proinflammatory cytokines. The elevation of cytokine levels is closely associated with increased articular tissue degeneration. Thus, the use of combination therapies may presumably be able to enhance the effects...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-016-2091-8
更新日期：2017-01-01 00:00:00
abstract：:Nonablative skin rejuvenation using laser, intense pulsed lights (IPLs), or radiofrequency techniques are becoming increasingly popular. In this paper, a novel protocol that integrates IPL sessions, low intense light and vitamin C, low-weight hyaluronic acid, betaglucan dermal injection versus IPL photorejuvenation as...
journal_title：Lasers in medical science
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1007/s10103-007-0456-8
更新日期：2008-04-01 00:00:00
abstract：:Macular amyloidosis (MA) is a common form of primary localized cutaneous amyloidosis, characterized by the eruption of brown pigments of the skin with a rippled pattern. MA can be of cosmetic concern for patients, and its treatment is challenging. In this study, we aimed to find new effective approaches for MA treatme...
journal_title：Lasers in medical science
pub_type： 临床试验,杂志文章
doi：10.1007/s10103-020-02954-y
更新日期：2020-07-01 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：:Although the application of Q-switched lasers on nevus of Ota (OTA) is well demonstrated, debates about clinical option between Q-switched alexandrite laser (QSA) and Q-switched Nd:YAG laser (QSNY) still remain. This systematic review and meta-analysis estimated the overall successful rate of OTA pigment clearance and...
journal_title：Lasers in medical science
pub_type： 杂志文章,meta分析,评审
doi：10.1007/s10103-016-1885-z
更新日期：2016-04-01 00:00:00
abstract：:The purpose of this study is to determine the effectiveness of endoscopic diode laser therapy in patients presenting rectal bleeding due to chronic radiation proctitis (CRP). A retrospective analysis of CRP patients who underwent diode laser therapy in a single institution between 2010 and 2016 was carried out. The pa...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-017-2323-6
更新日期：2018-01-01 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：:Wound healing is a very complex process, some phases of which have only recently been explained. Magnetic and electromagnetic fields can modulate this process in a non-thermal way. The aim of this research was to compare the influence of constant and pulsed electromagnetic fields and low-level laser therapy (LLLT) on ...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-008-0564-0
更新日期：2009-05-01 00:00:00
abstract：:The aim of the present study was to investigate laser-fluorescence effects on the root surface. The possibility of detecting subgingival calculus should be evaluated to control complete calculus removal after scaling and root planing. Twenty freshly extracted human teeth, partially covered with calculus on the root su...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-002-0241-7
更新日期：2003-01-01 00:00:00
abstract：:For better evaluation of the efficacy of low-level laser therapy in treating painful diabetic neuropathy and in protecting nerve fiber damage, we conducted a study with type 1 diabetic rats induced by streptozotocin. It is well known that diabetic peripheral neuropathy is the leading cause of pain in those individuals...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-016-2140-3
更新日期：2017-04-01 00:00:00
abstract：:The bactericidal activity of a pulsed fibre-optic Nd-YAP laser on various strains of oral bacteria: Prevotella nigrescens, Streptococcus sanguis, Actinomyces viscosus (i), Fusobacterium nucleatum, Actinobacillus actinomycetemcomitans and Peptostreptococcus micros (i) was evaluated. A 200-μm optical fibre was placed in...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s101030050010
更新日期：1998-12-01 00:00:00
abstract：:Recurrent herpes labialis is a worldwide life-long oral health problem that remains unsolved. It affects approximately one third of the world population and causes frequent pain and discomfort episodes, as well as social restriction due to its compromise of esthetic features. In addition, the available antiviral drugs...
journal_title：Lasers in medical science
pub_type： 杂志文章,评审
doi：10.1007/s10103-013-1311-8
更新日期：2014-07-01 00:00:00
abstract：:Oxygen consumption at the targeted site has a significant effect on dosimetry in photodynamic therapy (PDT). However, oxygen consumption in PDT using a pulsed laser as a light source has not been clarified. We therefore investigated the dependence of cytotoxicity on the oxygen consumption and the photosensitizer photo...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-004-0288-8
更新日期：2004-01-01 00:00:00
abstract：:Despite the positive effects of low-level laser therapy (LLLT) on muscle fatigue before exercises using a single muscle group, the acute effects of LLLT on performance in cardiopulmonary exercise testing (CPET) are poorly understood. We aimed to assess the acute effects of LLLT on physiologic and electromyographic res...
journal_title：Lasers in medical science
pub_type： 杂志文章,随机对照试验
doi：10.1007/s10103-014-1595-3
更新日期：2014-11-01 00:00:00
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：:The objective of this study was to investigate the effect of Er:YAG laser irradiation on shear bond strength and microleakage between resin cements and yttrium-stabilized tetragonal zirconia (Y-TZP) ceramics. Eighty disc specimens of Y-TZP ceramics (6 mm × 4 mm) were prepared. The specimens were divided into two group...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-011-0883-4
更新日期：2012-03-01 00:00:00
abstract：:We assess the long-term effect of pulsed high-intensity laser therapy (HILT) in the treatment of the post-mastectomy pain syndrome (PMPS). A total of 61 women participated in this study (30 in the laser group and 31 in the placebo laser group), with a mean age of 53.56 ± 1.11 years. Patients who were randomly assigned...
journal_title：Lasers in medical science
pub_type： 杂志文章,随机对照试验
doi：10.1007/s10103-015-1780-z
更新日期：2015-08-01 00:00:00
abstract：:Facial vitiligo has considerable psychological and emotional impacts. Though topical corticosteroids are the mainstay treatment, adverse reactions are a concern for prolonged use. Additionally, 308-nm excimer lamps have been widely used in vitiligo. This study aimed to assess the effectiveness of a combined 308-nm exc...
journal_title：Lasers in medical science
pub_type： 杂志文章,随机对照试验
doi：10.1007/s10103-020-03048-5
更新日期：2020-12-01 00:00:00
abstract：:Zirconia has been regarded as a promising material for dental implants, and Nd:YAG laser treatment has been proposed as a potential strategy to improve its bioactivity. The main aim of the present study was to evaluate the in vitro behavior of human fetal osteoblasts in contact with laser-textured zirconia implant sur...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-020-03066-3
更新日期：2020-12-01 00:00:00
abstract：:The main goal of anti-cancer therapeutic approaches is to induce apoptosis in tumor masses but not in the normal tissues. Nevertheless, the combination of photodynamic irradiation with complementary oncostatic agents contributes to better therapeutic performance. Here, we applied two different cell lines; SKOV3 ovaria...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-016-2016-6
更新日期：2016-11-01 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
