Abstract：
:A new optical method to discriminate benign and malignant oral tissue is reported. Twenty four tissue biopsy of patients tumor have been prepared in standard method without coloring process. The CW He-Ne laser beam interrogated the samples in optical setup. Linear absorption of tissues in laser wavelength measured and nonlinear behavior of tissue biopsies has been investigated by Z-scan setup. We used some simple optical instruments to focus on microsize region of biolayer to investigate less number of cells and to take repeatable test. Results show that the malignant samples have more attenuation than benign samples. Furthermore nonlinear refractive index (n2) of malignant biolayers has positive sign and n2 of benign biopsies has negative sign with the 10-8(cm2/W) order of magnitude. So this optical method may be used to discriminate malignant from benign tissues.
journal_name
Photodiagnosis Photodyn Therjournal_title
Photodiagnosis and photodynamic therapyauthors
Salman M,Hossein MA,Kamran KS,Shayan Mdoi
10.1016/j.pdpdt.2016.08.001subject
Has Abstractpub_date
2016-12-01 00:00:00pages
54-59eissn
1572-1000issn
1873-1597pii
S1572-1000(16)30147-8journal_volume
16pub_type
杂志文章abstract：:Photodynamic therapy is one of the hot topics in cancer studies. Photosensitizing chemical substrates are stimulated by light having a specific wavelength to cause fatal effect on different kinds of targets. In this study, axially 4-{[(1E)-2-furylmethylene]amino}phenol, 4-{[(1E)-2-thienylmethylene]amino}phenol and 4-{...
journal_title：Photodiagnosis and photodynamic therapy
pub_type： 杂志文章
doi：10.1016/j.pdpdt.2018.05.009
更新日期：2018-09-01 00:00:00
abstract：BACKGROUND:Erosive oral lichen planus (EOLP) poses a substantial risk of malignant transformation into squamous cell cancer. The absence of established treatment gives way to alternative therapeutic strategies, including photodynamic therapy. The aim of the study was to evaluate the efficacy of PDT in the treatment of ...
journal_title：Photodiagnosis and photodynamic therapy
pub_type： 杂志文章
doi：10.1016/j.pdpdt.2017.01.178
更新日期：2017-06-01 00:00:00
abstract：BACKGROUND:Although discovered over a century ago it is only in the last 25 years that photodynamic therapy (PDT) has been the focus of intense research. This versatile treatment modality has been shown to be effective in treating a wide variety of malignancies, and with the increasing incidence of non-melanoma skin ca...
journal_title：Photodiagnosis and photodynamic therapy
pub_type： 杂志文章
doi：10.1016/j.pdpdt.2010.12.004
更新日期：2011-06-01 00:00:00
abstract：BACKGROUND:Although triple antibiotic paste (TAP) has been successfully used as an intracanal medicament for regenerative endodontic treatments, TAP has also been shown to cause discolouration. The aim of this study is to investigate the efficacy of different bleaching agents to bleach teeth discoloured from TAP. METH...
journal_title：Photodiagnosis and photodynamic therapy
pub_type： 杂志文章
doi：10.1016/j.pdpdt.2020.101901
更新日期：2020-09-01 00:00:00
abstract：:Glucose is the main energy substance to drive the physiological events of the cell.. Malignant cells exhibit a much higher rate of glycolysis than healthy cells to relieve the increased needs of energy. The higher metabolic rate induces the over-expression of the Glucose Transporter (GLUT) to transport more glucose in...
journal_title：Photodiagnosis and photodynamic therapy
pub_type： 杂志文章
doi：10.1016/j.pdpdt.2020.102014
更新日期：2020-12-01 00:00:00
abstract：OBJECTIVES:To evaluate the bleaching efficacy of a violet radiation (VR) combined or not with bleaching gels on the color and mineral content of stained teeth. MATERIAL AND METHODS:Enamel/dentin blocks were obtained and stained (n = 50) with coffee, red wine, tobacco smoke, or were left non-stained. The stained or not...
journal_title：Photodiagnosis and photodynamic therapy
pub_type： 杂志文章
doi：10.1016/j.pdpdt.2021.102194
更新日期：2021-01-26 00:00:00
abstract：BACKGROUND:Photodynamic therapy (PDT) has been determined to be a promising treatment modality in the most resistant tumors such as malignant melanoma. However, the key cytotoxic agent of PDT, -singlet oxygen (1O2) - represents a high risk of photodynamic-associated side effects e.g. skin photosensitization. Recently, ...
journal_title：Photodiagnosis and photodynamic therapy
pub_type： 杂志文章
doi：10.1016/j.pdpdt.2018.05.017
更新日期：2018-09-01 00:00:00
abstract：BACKGROUND:To evaluate the effect of the first acute anterior uveitis (AAU) attack on the choroid by using an image binarization tool on images from enhanced depth imaging (EDI)-optical coherence tomography (OCT) scans in patients with ankylosing spondylitis (AS). METHODS:In this study, three groups were formed: uveit...
journal_title：Photodiagnosis and photodynamic therapy
pub_type： 杂志文章
doi：10.1016/j.pdpdt.2020.101778
更新日期：2020-09-01 00:00:00
abstract：BACKGROUND:Condyloma acuminatum is a highly infectious disease caused by the human papillomavirus. Previous studies have shown that 5-aminolevulinic acid photodynamic therapy can inhibit proliferation of condyloma acuminatum keratinocytes. However, the effect of 5-aminolevulinic acid photodynamic therapy on condyloma a...
journal_title：Photodiagnosis and photodynamic therapy
pub_type： 杂志文章
doi：10.1016/j.pdpdt.2019.07.018
更新日期：2019-12-01 00:00:00
abstract：BACKGROUND:Peritoneal carcinomatosis results when tumour cells implant and grow within the peritoneal cavity. Treatment and prognosis vary based on the primary cancer. Although therapy with intention-to-cure is offered to selective patients using cytoreductive surgery with chemotherapy, the prognosis remains poor for m...
journal_title：Photodiagnosis and photodynamic therapy
pub_type： 杂志文章,评审
doi：10.1016/j.pdpdt.2017.10.021
更新日期：2017-12-01 00:00:00
abstract：BACKGROUND:Previous in vivo studies on photodynamic therapy (PDT)-treated, high cellular density tumors showed evidences of a bystander effect accompanying the therapy, cellular death continuing beyond the limits of the photochemical reactions in time and space. This process is generated by the initially damaged cells ...
journal_title：Photodiagnosis and photodynamic therapy
pub_type： 杂志文章
doi：10.1016/j.pdpdt.2012.03.001
更新日期：2012-12-01 00:00:00
abstract：:Photodynamic therapy (PDT) is a relatively safe way for disease diagnosis and treatment that is based on light and photosensitizers. LS-HB is a promising photosensitizer with a light absorption peak of 660 nm. AIMS:The present study aimed to investigate the anticancer effects of LS-HB-PDT on hepatocellular carcinoma ...
journal_title：Photodiagnosis and photodynamic therapy
pub_type： 杂志文章
doi：10.1016/j.pdpdt.2020.101718
更新日期：2020-06-01 00:00:00
abstract：BACKGROUND:Conventional cancer treatment methods suffer from many limitations such as non-specificity in discrimination between healthy and malignant cells. The aim of this study was to investigate the role of polymeric gold-photoactive nanoparticles (PGPNPs) conjugated with folic acid (FA) as theranostic nanoparticles...
journal_title：Photodiagnosis and photodynamic therapy
pub_type： 杂志文章
doi：10.1016/j.pdpdt.2019.101602
更新日期：2020-03-01 00:00:00
abstract：BACKGROUND:Microorganisms treated by photo-activated disinfection (PAD) in combined periodontal-endodontic (perio-endo) lesions would be exposed to sub-lethal doses of PAD (sPAD). This study evaluated the effect of sPAD using toluidine blue O (TBO) in combination with diode laser irradiation on the growth and biofilm-f...
journal_title：Photodiagnosis and photodynamic therapy
pub_type： 杂志文章
doi：10.1016/j.pdpdt.2016.08.013
更新日期：2016-12-01 00:00:00
abstract：:Hepatitis is one of the most common life threatening diseases. The diagnosis is mainly based on biochemical analysis such as liver function test. However, histopathological evaluation of liver serves far better for more accurate final diagnosis. The goal of our study was to evaluate the eosin fluorescence pattern in C...
journal_title：Photodiagnosis and photodynamic therapy
pub_type： 杂志文章
doi：10.1016/j.pdpdt.2017.03.016
更新日期：2017-09-01 00:00:00
abstract：BACKGROUND:The objective of this paper was to verify if the oral administration of δ-aminolevulinic acid (ALA) in animals with prostate tumor can increase the sensitivity of cancer diagnosis by protoporphyrin IX blood autofluorescence. In this study, the autofluorescence of blood porphyrin was analyzed using fluorescen...
journal_title：Photodiagnosis and photodynamic therapy
pub_type： 杂志文章
doi：10.1016/j.pdpdt.2010.12.006
更新日期：2011-03-01 00:00:00
abstract：AIM:The current clinical trial aimed to assess the effectiveness of adjunctive photodynamic therapy (aPDT) and adjunctive antibiotic gel therapy (aAGT) to treat peri-implantitis among patients with type 2 diabetes mellitus (T2DM). METHODS:Selected T2DM participants with peri-implantitis were distributed into 3 groups:...
journal_title：Photodiagnosis and photodynamic therapy
pub_type： 杂志文章
doi：10.1016/j.pdpdt.2020.102077
更新日期：2020-12-01 00:00:00
abstract：BACKGROUND:The appearance of bacterial resistance to antibiotics a are major health problems. Antimicrobial photodynamic therapy (aPDT) has emerged as an adjunctive treatment for drug-resistant infections. Titanium dioxide (TiO2) and zinc oxide (ZnO) nanoparticles have recently been proposed as effective carriers for p...
journal_title：Photodiagnosis and photodynamic therapy
pub_type： 杂志文章
doi：10.1016/j.pdpdt.2020.101816
更新日期：2020-09-01 00:00:00
abstract：BACKGROUND:Photodynamic therapy (PDT) and diagnosis (PDD) using 5-aminolevulinic acid (ALA) to control the production of the intracellular photosensitizer protoporphyrin IX (PpIX) are commonly used clinically. Previously, we demonstrated that dormant and drug-induced dormancy-like cancer cells accumulated high PpIX lev...
journal_title：Photodiagnosis and photodynamic therapy
pub_type： 杂志文章
doi：10.1016/j.pdpdt.2020.101893
更新日期：2020-09-01 00:00:00
abstract：:Condyloma acuminata are a type of verrucous hyperplasia in the genital and perianal areas caused by human papilloma virus (HPV) infection. Traditional treatment methods for condyloma acuminata, such as topical medications, carbon dioxide (CO2) laser, cryotherapy, and surgical excision, can be effective at removing war...
journal_title：Photodiagnosis and photodynamic therapy
pub_type：
doi：10.1016/j.pdpdt.2020.101658
更新日期：2020-06-01 00:00:00
abstract：:We report a case of idiopathic paracentral acute middle maculopathy with typical optical imaging and clinical features. A 26-year-old Chinese policeman presented with a 20-day history of paracentral scotoma in the left eye after early wake-up and long-time working in front of computer the day before. He experienced su...
journal_title：Photodiagnosis and photodynamic therapy
pub_type： 杂志文章
doi：10.1016/j.pdpdt.2017.07.004
更新日期：2017-09-01 00:00:00
abstract：:Photodynamic therapy (PDT) is a clinically approved therapeutic modality used for the management of several types of tumors as well as non-malignant diseases. Most of the effects of this treatment regimen result from direct action of singlet oxygen and reactive oxygen species. However, accumulating evidence indicates ...
journal_title：Photodiagnosis and photodynamic therapy
pub_type： 杂志文章
doi：10.1016/S1572-1000(05)00098-0
更新日期：2005-12-01 00:00:00
abstract：BACKGROUND:Photodynamic therapy (PDT) is a well-known and effective treatment for non-melanoma skin-cancer. Numerous studies have also shown its effectiveness in mycosis fungoides. The aim of the study was to analyse MF patients treated with PDT at the Dermatology Unit of Bologna University. METHODS:We retrospectively...
journal_title：Photodiagnosis and photodynamic therapy
pub_type： 杂志文章
doi：10.1016/j.pdpdt.2017.09.004
更新日期：2017-12-01 00:00:00
abstract：BACKGROUND:Photodynamic therapy (PDT) is considered an important and innovative treatment for healing skin wounds. Skin ulcers with sinus tract formation are rare and difficult to treat in the field of dermatology. Herein, we utilized optical fibers as a light source to penetrate the sinus tract and applied PDT to trea...
journal_title：Photodiagnosis and photodynamic therapy
pub_type： 杂志文章
doi：10.1016/j.pdpdt.2020.101802
更新日期：2020-09-01 00:00:00
abstract：:The objective of this study was to evaluate and compare the clinical response to PDT (Photodynamic Therapy) in field cancerization using two aminolevulinate derivatives. Forty patients with multiple actinic keratosis (AK) on forearms and hands scattered received two sessions of ALA and MAL-PDT at 630 nm (36 J/cm2). Th...
journal_title：Photodiagnosis and photodynamic therapy
pub_type： 杂志文章
doi：10.1016/j.pdpdt.2019.101603
更新日期：2020-06-01 00:00:00
abstract：BACKGROUND:Multidrug resistance (MDR) of breast cancer is a major obstacle in chemotherapy of cancer treatments. Recently the anti-tumor effects of Chlorin e6 (Ce6) mediated photodynamic therapy (Ce6-PDT) were reported in skin cancer and hepatoma in vitro. However, its therapeutic potential in killing human breast canc...
journal_title：Photodiagnosis and photodynamic therapy
pub_type： 杂志文章
doi：10.1016/j.pdpdt.2016.07.004
更新日期：2016-12-01 00:00:00
abstract：:In this study, gold coated iron oxide nanoparticle (Au@Fe2O3 NP) was synthesized in a core-shell structure. Photothermal and radiosensitization effects of Au@Fe2O3 NPs were investigated on KB human mouth epidermal carcinoma cell line. Cell death and apoptosis were measured to study the effects of nanoparticles in comb...
journal_title：Photodiagnosis and photodynamic therapy
pub_type： 杂志文章
doi：10.1016/j.pdpdt.2018.08.003
更新日期：2018-12-01 00:00:00
abstract：:Antimicrobial photodynamic therapy uses a nontoxic photosensitizer with the assistance of harmless visible light to activate the photosensitizer. Consequently, the excited state of the photosensitizer interacts with molecular oxygen to produce reactive oxygen species, which have the antimicrobial effect. In this study...
journal_title：Photodiagnosis and photodynamic therapy
pub_type： 杂志文章
doi：10.1016/j.pdpdt.2018.09.018
更新日期：2018-12-01 00:00:00
abstract：BACKGROUND:Antibacterial photodynamic therapy (aPDT) has been proposed as an alternative strategy to inactivate bacteria. This study was designed to investigate the antibacterial effect of a novel photosensitizer S-Porphin sodium (S-PS) on plankton and biofilm cultures of Staphylococcus aureus (S. aureus) and its multi...
journal_title：Photodiagnosis and photodynamic therapy
pub_type： 杂志文章
doi：10.1016/j.pdpdt.2019.08.031
更新日期：2019-12-01 00:00:00
abstract：AIM:The aim of the present clinical trial was to evaluate the efficacy of photodynamic therapy (PDT) as an adjunct to mechanical debridement (MD) in the treatment of severe peri-implantitis (PI) with abscess. MATERIALS AND METHODS:Selected individuals with severe PI were divided into two groups: Group A: received meth...
journal_title：Photodiagnosis and photodynamic therapy
pub_type： 杂志文章
doi：10.1016/j.pdpdt.2020.101750
更新日期：2020-06-01 00:00:00
