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https://www.readbyqxmd.com/read/28805207/periodontal-diseases
#1
REVIEW
Denis F Kinane, Panagiota G Stathopoulou, Panos N Papapanou
Periodontal diseases comprise a wide range of inflammatory conditions that affect the supporting structures of the teeth (the gingiva, bone and periodontal ligament), which could lead to tooth loss and contribute to systemic inflammation. Chronic periodontitis predominantly affects adults, but aggressive periodontitis may occasionally occur in children. Periodontal disease initiation and propagation is through a dysbiosis of the commensal oral microbiota (dental plaque), which then interacts with the immune defences of the host, leading to inflammation and disease...
June 22, 2017: Nature Reviews. Disease Primers
https://www.readbyqxmd.com/read/28804994/neutron-activatable-needles-for-radionuclide-therapy-of-solid-tumors
#2
Junghyun Kim, Roger J Narayan, Xiuling Lu, Michael Jay
Various approaches have been undertaken to enhance the delivery of therapeutic agents, including tissue-killing radionuclides, into solid tumors. Here we describe the preparation of conical needles composed of Ti and Mo coated by pulsed laser deposition or chemical vapor deposition with elements (Ho and Re) that can readily yield radioactive isotopes following irradiation in a neutron flux. The radioactive needles, whose design were based on solid microneedle arrays used in transdermal drug delivery, can be produced with minimal handling of radioactivity and subsequently inserted into tumors as a means of internal radiation therapy...
August 14, 2017: Journal of Biomedical Materials Research. Part A
https://www.readbyqxmd.com/read/28801266/lipogels-responsive-to-near-infrared-light-for-the-triggered-release-of-therapeutic-agents
#3
Francisco Martín-Saavedra, Eduardo Ruiz-Hernández, Clara Escudero-Duch, Martin Prieto, Manuel Arruebo, Negar Sadeghi, Roel Deckers, Gert Storm, Wim E Hennink, Jesús Santamaría, Nuria Vilaboa
Here we report a composite system based on fibrin hydrogels that incorporate in their structure near-infrared (NIR) responsive nanomaterials and thermosensitive liposomes (TSL). Polymerized fibrin networks entrap simultaneously gold-based nanoparticles (NPs) capable of transducing NIR photon energy into heat, and lysolipid-incorporated TSL (LTSL) loaded with doxorubicin hydrochloride (DOX). NIR irradiation of the resulting hydrogels (referred to as "lipogels") with 808 nm laser light increased the temperature of the illuminated areas, leading to the release of the liposomal cargo...
August 8, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28792860/combination-treatment-with-photodynamic-therapy-and-laser-ablation-in-breast-cancer-an-animal-model-study
#4
Jeeyeon Lee, Ho Yong Park, Wan Wook Kim, Ji Yun Jeong, Yong-Deok Lee, Mi-Hwa Choi, Sehoon Kim, Ji-Young Park, Jin Hyang Jung
PURPOSE: Minimally invasive treatments for early breast cancer have been reported. The objective of this study was to evaluate and compare two such treatments, laser ablation and photodynamic therapy (PDT), regarding their therapeutic efficacy for breast cancer. METHODS: Breast tumors were induced in 12 mice models. The treatment options were classified into four groups: control group (without any treatment, A), group treated only with laser ablation (B), group treated only with PDT (C), and group treated with the combination of laser ablation followed by PDT (D)...
August 8, 2017: Photomedicine and Laser Surgery
https://www.readbyqxmd.com/read/28783464/efficacy-of-multiwave-locked-system-laser-on-pain-and-function-in-patients-with-chronic-neck-pain-a-randomized-placebo-controlled-trial
#5
Mohamed Salaheldien Alayat, Ahmed Mohamed Elsoudany, Mohamed Ebrahim Ali
BACKGROUND: Multiwave locked system (MLS) laser therapy utilizes the synchronized emission of an 808 nm continuous laser and a 905 nm pulsed laser. It is postulated that MLS enables greater penetration and therapeutic benefit than single-wavelength low-level laser therapy (LLLT). OBJECTIVE: The aim of this research was to evaluate the efficacies of MLS laser therapy and the 830 nm laser in the treatment of patients with chronic neck pain (CNP). MATERIALS AND METHODS: Seventy-five patients with CNP (mean age 46...
August 2017: Photomedicine and Laser Surgery
https://www.readbyqxmd.com/read/28782050/theranostic-gold-nanoantennas-for-simultaneous-multiplexed-raman-imaging-of-immunomarkers-and-photothermal-therapy
#6
Joseph A Webb, Yu-Chuan Ou, Shannon Faley, Eden P Paul, Joseph P Hittinger, Camden C Cutright, Eugene C Lin, Leon M Bellan, Rizia Bardhan
In this study, we demonstrate the theranostic capability of actively targeted, site-specific multibranched gold nanoantennas (MGNs) in triple-negative breast cancer (TNBC) cells in vitro. By utilizing multiplexed surface-enhanced Raman scattering (SERS) imaging, enabled by the narrow peak widths of Raman signatures, we simultaneously targeted immune checkpoint receptor programmed death ligand 1 (PDL1) and the epidermal growth factor receptor (EGFR) overexpressed in TNBC cells. A 1:1 mixture of MGNs functionalized with anti-PDL1 antibodies and Raman tag 5,5-dithio-bis-(2-nitrobenzoic acid) (DTNB) and MGNs functionalized with anti-EGFR antibodies and Raman tag para-mercaptobenzoic acid (pMBA) were incubated with the cells...
July 31, 2017: ACS Omega
https://www.readbyqxmd.com/read/28772424/scaling-up-techniques-for-the-nanofabrication-of-cell-culture-substrates-via-two-photon-polymerization-for-industrial-scale-expansion-of-stem-cells
#7
Davide Ricci, Michele M Nava, Tommaso Zandrini, Giulio Cerullo, Manuela T Raimondi, Roberto Osellame
Stem-cell-based therapies require a high number (10⁶-10⁸) of cells, therefore in vitro expansion is needed because of the initially low amount of stem cells obtainable from human tissues. Standard protocols for stem cell expansion are currently based on chemically-defined culture media and animal-derived feeder-cell layers, which expose cells to additives and to xenogeneic compounds, resulting in potential issues when used in clinics. The two-photon laser polymerization technique enables three-dimensional micro-structures to be fabricated, which we named synthetic nichoids...
January 13, 2017: Materials
https://www.readbyqxmd.com/read/28772237/low-intensity-laser-therapy-efficacy-evaluation-in-mice-subjected-to-acute-arthritis-condition
#8
Bianca F Trawitzki, Lothar Lilge, Fellipe A T de Figueiredo, Ana Paula Macedo, João Paulo M Issa
Acute arthritis is an inflammation that affects many joints. The principal treatment options comprise drugs (corticosteroids), invasive and painful surgery. The objective of this study was to evaluate the efficacy of low intensity laser therapy (LILT), a non-invasive treatment, in a murine model of acute inflammation model. 48 mice received a synovial injection of Zymosan A into one knee. Mice were treated with LILT by three different wavelengths, either as a single (S) or dual (D) application immediately after the injury or after 24h following initiation of an inflammatory response...
July 26, 2017: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/28765673/laser-biostimulation-effects-on-invertebral-disks-histological-evidence-on-intra-observer-samples-retrospective-double-blind-study
#9
Alfonso Tramontana, Roberto Sorge, Juan Carlos Miangolarra Page
Background and aims: The intervertebral disk degeneration is a pathological process determined by a decrease of mucopolysaccharides in the nucleus pulposus with the consequent dehydration and degeneration of the elastic fibers in the annulus fibrosus of the disk. The laser is a therapeutic tool that has, on the treated tissues, biostimulation effects with an increase of oxidative phosphorylation and production of ATP with an acceleration of the mucopolysaccharides synthesis with a consequent rehydration, biostimulation and production of new elastic fibers...
December 30, 2016: Laser Therapy
https://www.readbyqxmd.com/read/28758294/periodontitis-facts-fallacies-and-the-future
#10
REVIEW
Jørgen Slots
This volume of Periodontology 2000 represents the 25th anniversary of the Journal, and uses the occasion to assess important advancements in periodontology over the past quarter-century as well as the hurdles that remain. Periodontitis is defined by pathologic loss of the periodontal ligament and alveolar bone. The disease involves complex dynamic interactions among active herpesviruses, specific bacterial pathogens and destructive immune responses. Periodontal diagnostics is currently based on clinical rather than etiologic criteria, and provides limited therapeutic guidance...
October 2017: Periodontology 2000
https://www.readbyqxmd.com/read/28757325/scar-management-in-burn-injuries-using-drug-delivery-and-molecular-signaling-current-treatments-and-future-directions
#11
REVIEW
Saeid Amini-Nik, Yusef Yousuf, Marc G Jeschke
In recent decades, there have been tremendous improvements in burn care that have allowed patients to survive severe burn injuries that were once fatal. However, a major limitation of burn care currently is the development of hypertrophic scars in approximately 70% of patients. This significantly decreases the quality of life for patients due to the physical and psychosocial symptoms associated with scarring. Current approaches to manage scarring include surgical techniques and non-surgical methods such as laser therapy, steroid injections, and compression therapy...
July 27, 2017: Advanced Drug Delivery Reviews
https://www.readbyqxmd.com/read/28755641/a-visual-guide-to-gene-optothermal-synergy-therapy-nanosystem-using-tungsten-oxide
#12
Bin Zheng, Jingya Wang, Huizhuo Pan, Hongbin Chen, Wanying Ji, Zhenyu Liao, Xiaoqun Gong, Hanjie Wang, Jin Chang
Combination of gene therapy and photothermal therapy (PTT) has drawn much attention in cancer therapy in recent years. However, this joint treatment process lacks fluorescence imaging visualization guidance that limits its clinical applications in oncotherapy. Herein, we report the use of gene therapy and tungsten oxide (W18O49, WO) synthetized with template method for combined PTT of cancer. In this system, a novel nanoplatform, with Bax gene, WO and indocyanine green (ICG) loaded in mesoporous silica nanoparticle had been successfully constructed, which was used as the near-infrared imaging-guided gene/optothermal multi-modal oncotherapy...
July 20, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28750436/-retinal-vascular-occlusion-modern-therapeutic-approaches
#13
Moritz Pettenkofer, Nicolas Feltgen, Nikolaus Feucht, Chris P Lohmann, Mathias M Maier
Retinal artery occlusion (RAO) should be evaluated as an emergency and can be seen as an ocular analogue to the cerebral apoplex. Both have the same arteriosclerotic risk factors, which are also responsible for cardiac, circulatory and cerebrovascular diseases. That is why an intensive interdisciplinary clarification is necessary to recognize possible comorbidities in time and, if necessary, to treat them. The current therapeutic possibilities of an acute RAO are very limited in their efficiency regarding visual improvement...
July 27, 2017: Klinische Monatsblätter Für Augenheilkunde
https://www.readbyqxmd.com/read/28741634/mitochondria-targeting-near-infrared-light-triggered-thermosensitive-liposomes-for-localized-photothermal-and-photodynamic-ablation-of-tumors-combined-with-chemotherapy
#14
Caixia Yue, Yuming Yang, Jie Song, Gabriel Alfranca, Chunlei Zhang, Qian Zhang, Ting Yin, Fei Pan, Jesús M de la Fuente, Daxiang Cui
Lonidamine, an anticancer drug that acts on mitochondria, has poor water solubility. Mitochondria are the primary source of cellular reactive oxygen species (ROS), which are necessary for photodynamic therapy. Hence, a mitochondria-targeting drug delivery system loaded with Lonidamine and a ROS-produced photosensitizer could improve the bioavailability of Lonidamine and maximize photodynamic therapeutic efficiency. Here we report, for the first time, new IR-780 and Lonidamine encapsulated mitochondria-targeting thermosensitive liposomes (IL-TTSL)...
July 25, 2017: Nanoscale
https://www.readbyqxmd.com/read/28740687/infections-causing-central-airway-obstruction-role-of-bronchoscopy-in-diagnosis-and-management
#15
REVIEW
Sevak Keshishyan, Lawrence DeLorenzo, Kassem Hammoud, Arpine Avagyan, Hussein Assallum, Kassem Harris
Central airway obstructive infections (CAOI) are challenging medical conditions that may represent an advanced and complicated process of ongoing infections. The epidemiology of CAOI is unknown as well as the pathophysiology and the mechanism of development. This is due to sparse data in the literature that consists mainly of case reports and retrospective case series. CAOI can be caused by fungal, bacterial, parasitic and viral infections. Most patients with CAOI can be diagnosed clinically and with chest imaging, which demonstrate obstruction of the central airways...
June 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28737616/the-role-of-therapeutic-modalities-in-surgical-and-nonsurgical-management-of-orthopaedic-injuries
#16
Catherine A Logan, Peter D Asnis, Matthew T Provencher
Rehabilitation professionals often use therapeutic modalities as a component of the surgical and nonsurgical management of orthopaedic injuries. Myriad therapeutic modalities, including cryotherapy, thermotherapy, ultrasonography, electrical stimulation, iontophoresis, and laser therapy, are available. Knowledge of the scientific basis of each modality and the principles of implementation for specific injuries enables musculoskeletal treatment providers to prescribe these modalities effectively. The selection of specific therapeutic modalities is based on their efficacy during a particular phase of rehabilitation...
August 2017: Journal of the American Academy of Orthopaedic Surgeons
https://www.readbyqxmd.com/read/28731112/carrier-free-self-assembled-pure-drug-nanorods-composed-of-10-hydroxycamptothecin-and-chlorin-e6-for-combinatorial-chemo-photodynamic-antitumor-therapy-in-vivo
#17
Yan Wen, Wei Zhang, Ningqiang Gong, Yi-Feng Wang, Hong-Bo Guo, Weisheng Guo, Paul C Wang, Xing-Jie Liang
Carrier-free nanodrugs formulated from the supramolecular self-assembly of pure drug molecules have emerged as an innovative and promising strategy for tumor therapy. We report herein a new and simple method to directly assemble a small hydrophobic anticancer drug, 10-hydroxycamptothecin (HCPT), with a photosensitizer chlorin e6 (Ce6) to form stable, discrete nanorods (NRs), which not only circumvent the extreme hydrophobicity of HCPT but also incorporate two different modalities into one delivery system for combination therapy...
July 21, 2017: Nanoscale
https://www.readbyqxmd.com/read/28730118/efficiency-and-safety-of-laser-photocoagulation-with-or-without-intravitreal-ranibizumab-for-treatment-of-diabetic-macular-edema-a-systematic-review-and-meta-analysis
#18
Tian-Wei Qian, Meng-Ya Zhao, Xin-Xin Li, Xun Xu
AIM: To compare the therapeutic effect and safety of laser photocoagulation along with intravitreal ranibizumab (IVR) versus laser therapy in treatment of diabetic macular edema (DME). METHODS: Pertinent publications were identified through comprehensive searches of PubMed, EMBASE, Web of Science, Cochrane Library, and ClinicalTrials.gov to identify randomized clinical trials (RCTs) comparing IVR+laser to laser monotherapy in patients with DME. Therapeutic effect estimates were determined by weighted mean differences (WMD) of change from baseline in best corrected visual acuity (BCVA) and central retinal thickness (CRT) at 6, 12, or 24mo after initial treatment, and the risk ratios (RR) for the proportions of patients with at least 10 letters of improvement or reduction at 12mo...
2017: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/28726777/humanin-g-hng-protects-age-related-macular-degeneration-amd-transmitochondrial-arpe-19-cybrids-from-mitochondrial-and-cellular-damage
#19
Sonali Nashine, Pinchas Cohen, Marilyn Chwa, Stephanie Lu, Anthony B Nesburn, Baruch D Kuppermann, M Cristina Kenney
Age-related macular degeneration (AMD) ranks third among the leading causes of visual impairment with a blindness prevalence rate of 8.7%. Despite several treatment regimens, such as anti-angiogenic drugs, laser therapy, and vitamin supplementation, being available for wet AMD, to date there are no FDA-approved therapies for dry AMD. Substantial evidence implicates mitochondrial damage and retinal pigment epithelium (RPE) cell death in the pathogenesis of AMD. However, the effects of AMD mitochondria and Humanin G (HNG), a more potent variant of the mitochondrial-derived peptide (MDP) Humanin, on retinal cell survival have not been elucidated...
July 20, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28726212/melasma-an-up-to-date-comprehensive-review
#20
REVIEW
Oluwatobi A Ogbechie-Godec, Nada Elbuluk
Melasma is a common acquired condition of symmetric hyperpigmentation, typically occurring on the face, with higher prevalence in females and darker skin types. Multiple etiologies, including light exposure, hormonal influences, and family history, have been implicated in the pathogenesis of this disorder. Overall prevalence ranges widely at 1-50%, since values are typically calculated within a specific ethnic population within a geographic region. Histologically, melasma can display increased epidermal and/or dermal pigmentation, enlarged melanocytes, increased melanosomes, solar elastosis, dermal blood vessels, and, occasionally, perivascular lymphohistiocytic infiltrates...
July 19, 2017: Dermatology and Therapy
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