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https://www.readbyqxmd.com/read/28094044/diagnosis-and-treatment-of-acute-retinal-necrosis-a-report-by-the-american-academy-of-ophthalmology
#1
Scott D Schoenberger, Stephen J Kim, Jennifer E Thorne, Prithvi Mruthyunjaya, Steven Yeh, Sophie J Bakri, Justis P Ehlers
PURPOSE: To evaluate the available evidence in peer-reviewed publications about the diagnosis and treatment of acute retinal necrosis (ARN). METHODS: Literature searches of the PubMed and Cochrane Library databases were last conducted on July 27, 2016. The searches identified 216 unique citations, and 49 articles of possible clinical relevance were reviewed in full text. Of these 49 articles, 27 were deemed sufficiently relevant or of interest, and they were rated according to strength of evidence...
January 13, 2017: Ophthalmology
https://www.readbyqxmd.com/read/28089920/g-protein-coupled-estrogen-receptor-mediated-non-genomic-facilitatory-effect-of-estrogen-on-cooling-induced-reduction-of-skin-blood-flow-in-mice
#2
Izumi Serizawa, Nozomi Iwasaki, Hirotake Ishida, Shin-Ya Saito, Tomohisa Ishikawa
An enhanced vasoconstrictor activity of cutaneous arteries participates in the reduction of skin blood flow induced by cooling stimulation. Raynaud's phenomenon, which is characterized by intense cooling-induced constriction of cutaneous arteries, is more common in women during the period from menarche to menopause. We thus investigated the effect of 17β-estradiol (E2) on cooling-induced reduction of plantar skin blood flow (PSBF) in mouse in vivo. Ovariectomized female ddY mice, anaesthetized with pentobarbital, were treated with tetrodotoxin for eliminating the sympathetic nerve tone and artificially ventilated...
January 12, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28069501/photothermal-and-biodegradable-polyaniline-porous-silicon-hybrid-nanocomposites-as-drug-carriers-for-combined-chemo-photothermal-therapy-of-cancer
#3
Bing Xia, Bin Wang, Jisen Shi, Yu Zhang, Qi Zhang, Zhenyu Chen, Jiachen Li
: To develop photothermal and biodegradable nanocarriers for combined chemo-photothermal therapy of cancer, polyaniline/porous silicon hybrid nanocomposites had been successfully fabricated via surface initiated polymerization of aniline onto porous silicon nanoparticles in our experiments. As-prepared polyaniline/porous silicon nanocomposites could be well dispersed in aqueous solution without any extra hydrophilic surface coatings, and showed a robust phototherml effect under near-infrared (NIR) laser irradiation...
January 6, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28063908/laser-angiography-with-indocyanine-green-icg-to-assess-vaginal-cuff-perfusion-during-total-laparoscopic-hysterectomy-tlh-a-pilot-study
#4
Benjamin D Beran, Marie Shockley, Katrin Arnolds, Pedro Escobar, Stephen Zimberg, Michael L Sprague
STUDY OBJECTIVE: To determine feasibility of using laser angiography with ICG to assess vaginal cuff vascular perfusion during TLH. DESIGN: Pilot feasibility trial DESIGN CLASSIFICATION: Canadian Task Force Class II-2 SETTING: Academic-affiliated hospital PATIENTS: Twenty women undergoing TLH for benign disease. INTERVENTIONS: Participants underwent 1:1 randomization of energy method used for colpotomy (ultrasonic versus monopolar) and vaginal cuff closure suture (barbed versus non-barbed)...
January 4, 2017: Journal of Minimally Invasive Gynecology
https://www.readbyqxmd.com/read/28033152/effect-of-general-anesthesia-on-neurodevelopmental-abnormalities-in-children-undergoing-treatment-of-vascular-anomalies-with-laser-surgery-a-retrospective-review
#5
Vitaly Terushkin, Jeremy Brauer, Leonard Bernstein, Roy Geronemus
BACKGROUND: Multiple exposures to general anesthesia may be neurotoxic to the developing brain. This relationship has not been evaluated in children undergoing laser surgery for vascular anomalies. OBJECTIVE: To evaluate the prevalence of neurodevelopmental abnormalities in children who received multiple laser procedures under general anesthesia before the age of 4 years for the treatment of vascular anomalies. METHODS AND MATERIALS: Retrospective chart review of patients with contact of parents for telephone interview...
December 26, 2016: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
https://www.readbyqxmd.com/read/28027959/polysarcosine-brush-stabilized-gold-nanorods-for-in-vivo-near-infrared-photothermal-tumor-therapy
#6
Hong Zhu, Ying Chen, Fang-Jie Yan, Jin Chen, Xin-Feng Tao, Jun Ling, Bo Yang, Qiao-Jun He, Zheng-Wei Mao
: Gold nanorods (AuNRs) are suitable candidates for photothermal therapy in vivo, because of their excellent ability to transfer near-infrared (NIR) light into heat. However, appropriate surface should be generated on AuNRs before their in vivo application because of the low colloidal stability in complicate biological environment and relatively strong toxicity compared to their pristine stabilizer cetyltrimethylammonium bromide. In the current study, polysarcosine (PS), a non-ionic hydrophilic polypeptoid whose structure is similar to polypeptides, bearing repeating units of natural α-amino acid, was used to stabilize AuNRs due to its excellent hydrophilicity and biocompatibility...
December 24, 2016: Acta Biomaterialia
https://www.readbyqxmd.com/read/28007457/padeliporfin-vascular-targeted-photodynamic-therapy-versus-active-surveillance-in-men-with-low-risk-prostate-cancer-clin1001-pcm301-an-open-label-phase-3-randomised-controlled-trial
#7
Abdel-Rahmène Azzouzi, Sébastien Vincendeau, Eric Barret, Antony Cicco, François Kleinclauss, Henk G van der Poel, Christian G Stief, Jens Rassweiler, Georg Salomon, Eduardo Solsona, Antonio Alcaraz, Teuvo T Tammela, Derek J Rosario, Francisco Gomez-Veiga, Göran Ahlgren, Fawzi Benzaghou, Bertrand Gaillac, Billy Amzal, Frans M J Debruyne, Gaëlle Fromont, Christian Gratzke, Mark Emberton
BACKGROUND: Vascular-targeted photodynamic therapy, a novel tissue-preserving treatment for low-risk prostate cancer, has shown favourable safety and efficacy results in single-arm phase 1 and 2 studies. We compared this treatment with the standard of care, active surveillance, in men with low-risk prostate cancer in a phase 3 trial. METHODS: This randomised controlled trial was done in 47 European university centres and community hospitals. Men with low-risk, localised prostate cancer (Gleason pattern 3) who had received no previous treatment were randomly assigned (1:1) to vascular-targeted photodynamic therapy (4 mg/kg padeliporfin intravenously over 10 min and optical fibres inserted into the prostate to cover the desired treatment zone and subsequent activation by laser light 753 nm with a fixed power of 150 mW/cm for 22 min 15 s) or active surveillance...
December 19, 2016: Lancet Oncology
https://www.readbyqxmd.com/read/27998456/-temporal-and-spatial-characteristics-of-rgc-death-and-axon-degeneration-in-the-rat-model-of-nonarteritic-anterior-ischemic-optic-neuropathy
#8
Y W Wang, T Chen, J Ma, Y Zhong
Objective: To investigate the temporal and spatial characteristics of retinal ganglion cell (RGC) death and axon degeneration in the rat model of nonarteritic anterior ischemic optic neuropathy (rNAION). Methods: Experimental study. The model of rNAION was induced by directly illuminating the optic nerve head with laser, after intravenous infusion with the photosensitizing agent rose Bengal. Seventy-one SD rats were randomly divided into five groups: 1-week (n=14), 2-week (n=14), 4-week (n=15) , 8-week (n=16) model group and the normal control group (n=12)...
December 11, 2016: [Zhonghua Yan Ke za Zhi] Chinese Journal of Ophthalmology
https://www.readbyqxmd.com/read/27997458/acute-retinal-necrosis-after-administration-of-adalimumab-a-systemic-antitumor-necrosis-factor-antibody
#9
Sid A Schechet, Kevin Garff, Karen Klima, Wayne Campbell, Lisa S Schocket
PURPOSE: To report a case of acute retinal necrosis in a patient on anti-tumor necrosis factor α immunosuppressive therapy. METHODS: Case report. RESULTS: A 47-year-old man with psoriasis presented with blurred vision and floaters in the left eye 4 days after receiving his fourth dose of adalimumab, a tumor necrosis factor α antagonist. He was diagnosed with acute retinal necrosis and was treated with intravenous acyclovir as well as prophylactic laser barricade...
December 16, 2016: Retinal Cases & Brief Reports
https://www.readbyqxmd.com/read/27982217/bilateral-acute-angle-closure-glaucoma-as-a-first-presentation-of-granulomatosis-with-polyangiitis-wegener-s
#10
Alper Mete, Sabit Kimyon, Oguzhan Saygili, Can Pamukcu, Kıvanç Güngör
We report a case of bilateral acute angle-closure glaucoma in a patient with undiagnosed granulomatosis with polyangiitis (Wegener's). A 59-year-old man presented with a severe headache, ocular pain, blurred vision, shortness of breath, and mild fever. Clinical examination revealed conjunctival chemosis, corneal edema, and shallow anterior chambers. Closed angles were observed bilaterally on gonioscopy. The patient was treated with intravenous mannitol, oral acetazolamide, and anti-glaucomatous eye drops. Over the following two days, his vision improved and intraocular pressures decreased...
September 2016: Arquivos Brasileiros de Oftalmologia
https://www.readbyqxmd.com/read/27958226/correlation-of-vascular-endothelial-growth-factor-production-with-photochemical-reaction-induced-retinal-edema
#11
Liang Shan, Mi Zheng, Yuan Zhang, Yuan Qu, Tian Niu, Qing Gu, Kun Liu, Xin Xia
BACKGROUND: Retinal edema is the major complication of retinal vein occlusion and diabetic retinopathy; it can damage visual function by influencing macular region. This study was to establish a rat retinal edema model and explore the related VEGF expression and observe the responses to anti-VEGF drugs in this model. METHODS: A rat retinal edema model was established by inducing photochemical reaction using a 532 nm laser after the intravenous injection of Erythrosin B...
2016: Chinese Medical Journal
https://www.readbyqxmd.com/read/27936561/stem-cell-membrane-camouflaging-on-near-infrared-photoactivated-upconversion-nanoarchitectures-for-in-vivo-remote-controlled-photodynamic-therapy
#12
Changyong Gao, Zhihua Lin, Zhiguang Wu, Xiankun Lin, Qiang He
The upconversion nanoparticle (UCNP)-based photodynamic therapy (PDT) agents are promising for deep-tissue cancer treatment because they may overcome current limitations due to the shallow penetration depth of visible light. However, limited blood circulation time and poor tumor-targeting capability challenge the therapeutic efficacy of UCNP-based PDT in vivo. Here, we demonstrate intravenous injectable stem-cell-membrane-camouflaged upconversion nanoarchitectures as a biomimetic tumor PDT platform. The biomimetic PDT system is constructed by fusing mesoporous-silica-encapsulated β-NaYF4:Yb(3+),Er(3+) UCNPs with stem-cell membranes...
December 21, 2016: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/27871277/pulmonary-endothelial-activation-caused-by-extracellular-histones-contributes-to-neutrophil-activation-in-acute-respiratory-distress-syndrome
#13
Yanlin Zhang, Li Guan, Jie Yu, Zanmei Zhao, Lijun Mao, Shuqiang Li, Jinyuan Zhao
BACKGROUND: During the acute respiratory distress syndrome (ARDS), neutrophils play a central role in the pathogenesis, and their activation requires interaction with the endothelium. Extracellular histones have been recognized as pivotal inflammatory mediators. This study was to investigate the role of pulmonary endothelial activation during the extracellular histone-induced inflammatory response in ARDS. METHODS: ARDS was induced in male C57BL/6 mice by intravenous injection with lipopolysaccharide (LPS) or exogenous histones...
November 21, 2016: Respiratory Research
https://www.readbyqxmd.com/read/27865134/polychromatic-light-480-3400nm-similar-to-the-terrestrial-solar-spectrum-without-its-uv-component-in-post-surgical-immunorehabilitation-of-breast-cancer-patients
#14
Natalia A Zhevago, Alexander A Zimin, Tatyana V Glazanova, Natalia I Davydova, Natalia V Bychkova, Zhanna V Chubukina, Anna I Buinyakova, Marina F Ballyuzek, Kira A Samoilova
To this day, two methods of phototherapy (PT) have been successfully used in post-surgical immunorehabilitation of patients with breast cancer (BC): intravenous laser irradiation of the patients' blood and reinfusion of lympholeukosuspension of BC patients after single irradiation with HeNe laser. The objective of this pilot experimental study was to verify the effectiveness of the percutaneous use of polychromatic visible light combined with polychromatic infrared (pVIS+pIR) radiation similar to the major components of natural solar spectrum in post-surgical management of BC patients...
January 2017: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/27863636/the-effect-of-propofol-infusion-with-topical-epinephrine-on-cochlear-blood-flow-and-hearing-an-experimental-study
#15
Chul Ho Jang, Yong Beom Cho, Jun Sik Lee, Geun Hyung Kim, Won-Kyo Jung, Sok Cheon Pak
BACKGROUND AND OBJECTIVE: Propofol is the most commonly used intravenous (IV) anesthetic agent and is associated with hypotension upon induction of anesthesia. Intravenous propofol infusion has several properties that may be beneficial to patients undergoing middle ear surgery. Topical application of concentrated epinephrine is a valuable tool for achieving hemostasis in the middle ear and during mastoid surgery. The purpose of the present study was to determine the effects of propofol infusion with topical epinephrine on cochlear blood flow (CBF) and hearing in rats...
December 2016: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/27823554/topical-diclofenac-loaded-liposomes-ameliorate-laser-induced-choroidal-neovascularization-in-mice-and-non-human-primates
#16
Masamitsu Shimazawa, Yuki Inoue, Tomomi Masuda, Risako Onodera, Kohei Tahara, Yoshitaka Shimizu, Yasuhiko Mibe, Kazuhiro Tsuruma, Hirofumi Takeuchi, Hideaki Hara
This study aimed to evaluate the effect of liposomes loaded with diclofenac, a potent cyclooxygenase (COX)-1 and COX-2 inhibitor, on laser-induced choroidal neovascularization (CNV) in mice and non-human primates (common marmosets). CNV was induced by laser irradiation on the unilateral or bilateral eye of each mouse or common marmoset, respectively, under anesthesia. The CNV was visualized using fluorescence labeling with intravenous injection of fluorescein-conjugated dextran (molecular weight = 2,000 kDa), and quantified in the retinal pigment epithelia (RPE)-choroidal flatmounts...
November 4, 2016: Current Neurovascular Research
https://www.readbyqxmd.com/read/27820832/quantitative-multi-parametric-magnetic-resonance-imaging-of-tumor-response-to-photodynamic-therapy
#17
Tom J L Schreurs, Stefanie J Hectors, Igor Jacobs, Holger Grüll, Klaas Nicolay, Gustav J Strijkers
OBJECTIVE: The aim of this study was to characterize response to photodynamic therapy (PDT) in a mouse cancer model using a multi-parametric quantitative MRI protocol and to identify MR parameters as potential biomarkers for early assessment of treatment outcome. METHODS: CT26.WT colon carcinoma tumors were grown subcutaneously in the hind limb of BALB/c mice. Therapy consisted of intravenous injection of the photosensitizer Bremachlorin, followed by 10 min laser illumination (200 mW/cm2) of the tumor 6 h post injection...
2016: PloS One
https://www.readbyqxmd.com/read/27799769/lx2-32c-loaded-polymeric-micelles-with-small-size-for-intravenous-drug-delivery-and-their-inhibitory-effect-on-tumor-growth-and-metastasis-in-clinically-associated-4t1-murine-breast-cancer
#18
Li-Qing Chen, Wei Huang, Zhong-Gao Gao, Wei-Shuo Fang, Ming-Ji Jin
Lx2-32c is a novel taxane derivative with a strong antitumor activity. In this study, we developed Lx2-32c-loaded polymeric micelles (Lx2-32c-PMs) with small size and investigated their antitumor efficacy against tumor growth and metastasis on 4T1 murine breast cancer cell line with Cremophor EL-based Lx2-32c solution as the control. In this study, copolymer monomethoxy polyethylene glycol2000-polylactide1300 was used to prepare Lx2-32c-PMs by film hydration method, and their physicochemical properties were characterized as well, according to morphology, particle size, zeta potential, in vitro drug release, and reconstitution stability...
2016: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/27776285/oxygen-generating-hybrid-nanoparticles-to-enhance-fluorescent-photoacoustic-ultrasound-imaging-guided-tumor-photodynamic-therapy
#19
Shi Gao, Guohao Wang, Zainen Qin, Xiangyu Wang, Guoqing Zhao, Qingjie Ma, Lei Zhu
Photodynamic therapy (PDT) is a promising tumor treatment modality that can convert oxygen into cytotoxic singlet oxygen (SO) via photosensitizer to ablate tumor growth. However, the uncontrolled cancer cell proliferation during tumor development and the oxygen consumption during PDT always result in an insufficient oxygen level in tumors, which can adversely affect the PDT efficiency in turn. We designed an oxygen-generating PDT nanocomplex by encapsulating a manganese dioxide nanoparticle (MnO2 NP) in an indocyanine green (ICG) modified hyaluronic acid nanoparticle (HANP) to overcome this limitation...
October 19, 2016: Biomaterials
https://www.readbyqxmd.com/read/27770953/superparamagnetic-iron-oxide-nanoparticles-conjugated-with-folic-acid-for-dual-target-specific-drug-delivery-and-mri-in-cancer-theranostics
#20
Yinping Huang, Kaili Mao, Baolin Zhang, Yingzheng Zhao
Monodispersed SPIONs (superparamagnetic iron oxide nanoparticles) co-coated with PEG and PEI polymers were prepared by an improved polyol method. To accomplish cancer-specific targeting properties, FA (folic acid) was then modified on the SPIONs via EDC/NHS method (FA-SPIONs). Doxorubicin (DOX) as an example anticancer drug was loaded within FA-SPIONs (DOX@FA-SPIONs), the DOX release rate of DOX@FA-SPIONs was much high in low pH PBS. The SPIONs, FA-SPIONs and DOX@FA-SPIONs with mean hydrodynamic diameters of 23, 40 and 67nm, respectively, performed excellent colloidal stability in PBS...
January 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
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