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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
#1
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
#2
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
#3
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
#4
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
https://www.readbyqxmd.com/read/28724284/inter-alpha-inhibitor-h4-as-a-potential-biomarker-predicting-the-treatment-outcomes-in-patients-with-hepatocellular-carcinoma
#5
Eun-Jung Lee, Seung-Hyun Yang, Kyoung-Jin Kim, Hyejung Cha, Seo Jin Lee, Ji-Hye Kim, Junkyu Song, Kyung-Hee Chun, Jinsil Seong
Purpose: Early prediction of treatment outcomes represents an essential step towards increased treatment efficacy and survival in patients with hepatocellular carcinoma (HCC). In this study, we performed two-dimensional electrophoresis (2-DE) followed by protein profiling to identify biomarkers predictive of therapeutic outcomes in patients with HCC who received liver-directed therapy (LDTx) involving local radiotherapy (RT), and studied the underlying mechanisms of the identified proteins...
July 17, 2017: Cancer Research and Treatment: Official Journal of Korean Cancer Association
https://www.readbyqxmd.com/read/28718933/treatment-of-hidradenitis-suppurativa-with-rifampicin-have-we-forgotten-tuberculosis
#6
P Mendes-Bastos, R Macedo, R Duarte
Hidradenitis suppurativa (HS) is a chronic, recurrent and debilitating skin disease of the hair follicle that is accompanied by systemic inflammation. Treating HS is challenging, and therapeutic tools as diverse as topical and systemic antibiotics, biologics, intralesional steroids, surgical procedures or light and laser therapies are frequently needed. The combination of oral clindamycin and rifampicin (R+C) has been suggested as a possible treatment regimen (level of evidence III, strength of recommendation C)...
July 18, 2017: British Journal of Dermatology
https://www.readbyqxmd.com/read/28716900/structural-insights-into-the-extracellular-recognition-of-the-human-serotonin-2b-receptor-by-an-antibody
#7
Andrii Ishchenko, Daniel Wacker, Mili Kapoor, Ai Zhang, Gye Won Han, Shibom Basu, Nilkanth Patel, Marc Messerschmidt, Uwe Weierstall, Wei Liu, Vsevolod Katritch, Bryan L Roth, Raymond C Stevens, Vadim Cherezov
Monoclonal antibodies provide an attractive alternative to small-molecule therapies for a wide range of diseases. Given the importance of G protein-coupled receptors (GPCRs) as pharmaceutical targets, there has been an immense interest in developing therapeutic monoclonal antibodies that act on GPCRs. Here we present the 3.0-Å resolution structure of a complex between the human 5-hydroxytryptamine 2B (5-HT2B) receptor and an antibody Fab fragment bound to the extracellular side of the receptor, determined by serial femtosecond crystallography with an X-ray free-electron laser...
July 17, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28713116/therapeutic-evaluation-of-cervical-dysfunction-in-patients-with-myofascial-pain-dysfunction-syndrome-a-prospective-study
#8
B Smriti Jagdhari, Motwani Mukta, A Golhar Saket, Anil V Golhar
AIM: The aim of this study was to find out the therapeutic correlation between cervical dysfunction and myofascial pain dysfunction syndrome (MPDS). MATERIALS AND METHODS: The study included 46 patients out of which 23 had MPDS with cervical pain (group I), and 23 patients had only MPDS (group II). Detailed history and examination of the patients were carried out, and the factors taken into consideration were pain and tenderness of muscles of mastication and neck muscles, maximum comfortable mouth opening, and cervical range of motion...
July 1, 2017: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/28708389/nanostructured-phthalocyanine-assemblies-with-protein-driven-switchable-photoactivities-for-biophotonic-imaging-and-therapy
#9
Xingshu Li, C-Yoon Kim, Seunghyun Lee, Dayoung Lee, Hyung Min Chung, Gyoungmi Kim, Si-Hyun Heo, Chulhong Kim, Ki-Sung Hong, Juyoung Yoon
Switchable phototheranostic nanomaterials are of particular interest for specific biosensing, high-quality imaging, and targeted therapy in the field of precision nanomedicine. Here, we develop a "one-for-all" nanomaterial that self-assembles from flexible and versatile phthalocyanine building blocks. The nanostructured phthalocyanine assemblies (NanoPcTBs) display intrinsically unique photothermal and photoacoustic properties. Fluorescence and reactive oxygen species (ROS) generation can be triggered depending on a targeted, protein-induced, partial disassembly mechanism, which creates opportunities for low-background fluorescence imaging and activatable photodynamic therapy (PDT)...
July 14, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28702972/laser-treatment-of-post-thyroidectomy-scar
#10
F Borgia, M Vaccaro, L Gasco, J Lotti, T Lotti, C Guarneri
A good aesthetic result in thyroid surgery is one of the main goals, as this procedure usually involves young women affected in clearly visible anatomical areas. To minimize the detrimental effects of scarring outcome, several therapeutic options have been employed. Lasers may be an alternative choice for prevention and treatment of post-surgical thyroidectomy scar. This paper reviews literature and the current knowledge on this topic. A comprehensive search in the Cochrane Library, MEDLINE and PUBMED databases was performed to identify relevant literature investigating the role of laser therapy in both prevention and treatment of unappealing scarring after thyroid surgery...
July 13, 2017: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/28700330/translocation-of-heme-oxygenase-1-contributes-to-imatinib-resistance-in-chronic-myelogenous-leukemia
#11
Bianca Schaefer, Soenke Behrends
Heme oxygenase-1 (HO-1) degrades heme to bilirubin. In addition, it is upregulated in malignant disease and has been described as an important factor for cancer prognosis and therapy. Under physiological conditions HO-1 is anchored to the endoplasmic reticulum (ER). Under stress conditions HO-1 can be cleaved and subsequently translocates to the cytosol and nucleus.In this study we systematically investigated the influence of HO-1's catabolic activity and subcellular localization on resistance against the tyrosine kinase inhibitor imatinib in leukemia cells by confocal laser scanning microscopy, hemoglobin synthesis experiments and cell viability assays...
June 27, 2017: Oncotarget
https://www.readbyqxmd.com/read/28688752/comparison-of-effects-of-lllt-and-lipus-on-fracture-healing-in-animal-models-and-patients-a-systematic-review
#12
REVIEW
Mohammad Bayat, Amarjit Virdi, Reza Jalalifirouzkouhi, Fatemehalsadat Rezaei
The aim of this paper is to study the in vivo potency of low-level laser therapy (LLLT) and low intensity pulsed ultrasound (LIPUS) alone, accompanied by bone grafts, or accompanied by other factors on fracture healing in animal models and patients. In this paper, we aim to systematically review the published scientific literature regarding the use of LLLT and LIPUS to accelerate fracture healing in animal models and patients. We searched the PubMed database for the terms LLLT or LIPUS and/or bone, and fracture...
July 5, 2017: Progress in Biophysics and Molecular Biology
https://www.readbyqxmd.com/read/28687935/update-of-ablative-fractionated-lasers-to-enhance-cutaneous-topical-drug-delivery
#13
REVIEW
Jill S Waibel, Ashley Rudnick, Deborah R Shagalov, Danielle M Nicolazzo
Ablative fractional lasers (AFXL) enhance uptake of therapeutics and this newly emerging field is called laser-assisted drug delivery (LAD). This new science has emerged over the past decade and is finding its way into clinical practice. LAD is poised to change how medicine delivers drugs. Topical and systemic application of pharmaceutical agents for therapeutic effect is an integral part of medicine. With topical therapy, the stratum corneum barrier of the skin impairs the ability of drugs to enter the body...
July 7, 2017: Advances in Therapy
https://www.readbyqxmd.com/read/28684911/photothermal-therapy-of-melanoma-tumor-using-multiwalled-carbon-nanotubes
#14
Zahra Sobhani, Mohammad Ali Behnam, Farzin Emami, Amirreza Dehghanian, Iman Jamhiri
Photothermal therapy (PTT) is a therapeutic method in which photon energy is transformed into heat rapidly via different operations to extirpate cancer. Nanoparticles, such as carbon nanotubes (CNTs) have exceptional optical absorbance in visible and near infrared spectra. Therefore, they could be a good converter to induce hyperthermia in PTT technique. In our study, for improving the dispersibility of multiwalled CNTs in water, the CNTs were oxidized (O-CNTs) and then polyethylene glycol (PEG) was used for wrapping the surface of nanotubes...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/28684737/a-novel-ph-sensitive-carrier-for-the-delivery-of-antitumor-drugs-histidine-modified-auricularia-auricular-polysaccharide-nano-micelles
#15
Yingying Wang, Pingfei Li, Fen Chen, Lianqun Jia, Qihao Xu, Xiumei Gai, Yibin Yu, Yan Di, Zhihong Zhu, Yanyao Liang, Mengqi Liu, Weisan Pan, Xinggang Yang
The study was aimed to design a novel pH-sensitive carrier to deliver antitumor drugs to increase treatment efficiency. Histidine (His)was used to modify auricularia auricular polysaccharide (AAP) by esterification. Proton nuclear magnetic resonance spectrometry was developed to characterize the His-AAP carrier and the His-AAP Paclitaxel (PTX) micelles were prepared by self-assembled organic solvent evaporation. The formation of His-AAP PTX micelles was confirmed by dynamic light-scattering, transmission electron microscopy and high performance liquid chromatography...
July 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28678468/near-infrared-light-activated-photochemical-internalization-of-reduction-responsive-polyprodrug-vesicles-for-synergistic-photodynamic-and-chemotherapy
#16
Kangning Zhu, Guhuan Liu, Jinming Hu, Shiyong Liu
The use of intracellular reductive microenvironment to control the release of therapeutic payloads has emerged as a popular approach to design and fabricate intelligent nanocarriers. However, these reduction-responsive nanocarriers are generally trapped within endolysosomes after internalization and are subjected to unwanted disintegration, remarkably compromising the therapeutic performance. Herein, amphiphilic polyprodrugs of poly(N,N-dimethylacrylamide-co-EoS)-b-PCPTM were synthesized via sequential reversible addition-fragmentation chain transfer (RAFT) polymerization, where EoS and CPTM are Eosin Y- and camptothecin (CPT)-based monomers, respectively...
July 5, 2017: Biomacromolecules
https://www.readbyqxmd.com/read/28676850/current-therapeutic-approach-to-hypertrophic-scars
#17
REVIEW
Zrinka Bukvić Mokos, Anamaria Jović, Lovorka Grgurević, Ivo Dumić-Čule, Krešimir Kostović, Romana Čeović, Branka Marinović
Abnormal scarring and its accompanying esthetic, functional, and psychological sequelae still pose significant challe nges. To date, there is no satisfactory prevention or treatment option for hypertrophic scars (HSs), which is mostly due to not completely comprehending the mechanisms underlying their formation. That is why the apprehension of regular and controlled physiological processes of scar formation is of utmost importance when facing hypertrophic scarring, its pathophysiology, prevention, and therapeutic approach...
2017: Frontiers in Medicine
https://www.readbyqxmd.com/read/28669425/-treatment-of-hailey-hailey-disease-with-botulinic-toxin-a-retrospective-study-of-8-cases
#18
L Dousset, A Pham-Ledard, M-S Doutre, M Beylot-Barry, O Cogrel
BACKGROUND: Hailey-Hailey disease (HHD) is characterised by episodes of weeping erythematous lesions, particularly in areas subject to friction or maceration. Treatment is complex. The value of botulinum toxin has been demonstrated in several studies and in individual cases. AIM: To report clinical and progressive data for 8 patients treated for HHD with injections of botulinum toxin A (BTX-A), following the failure of several other therapeutic approaches. PATIENTS AND METHODS: Eight patients (three males and five females), of median age 52...
June 29, 2017: Annales de Dermatologie et de Vénéréologie
https://www.readbyqxmd.com/read/28667899/sensitivity-to-antitubulin-chemotherapeutics-is-potentiated-by-a-photoactivable-nanoliposome
#19
Xiaobing Wang, Xiufang Liu, Yixiang Li, Pan Wang, Xiaolan Feng, Quanhong Liu, Fei Yan, Hairong Zheng
Anti-microtubule therapy represents one of the most strategic cancer therapeutics. Tublin inhibitor such as paclitaxel (PTX) is well known to disturb the dynamic nature of microtubules, being considered as the first-line drug for various malignancies. However, PTX does not show favorable clinical outcomes due to serious systemic toxicities and low selectivity. The development of PTX delivery systems and combinational therapies has been conducted to enhance PTX efficacy with poorly defined mechanisms. Herein, we introduced a reactive oxygen species producible composite liposome based on a new photosensitizer sinoporphyrin sodium (DVDMS) to enhance the therapeutic effect of PTX through photochemical stimulation, and more importantly, the pivotal molecular regulation mechanisms were specifically explored...
June 23, 2017: Biomaterials
https://www.readbyqxmd.com/read/28666728/near-infrared-light-triggered-drug-release-from-a-multiple-lipid-carrier-complex-using-an-all-in-one-strategy
#20
Huipeng Li, Xue Yang, Zhanwei Zhou, Kaikai Wang, Chenzi Li, Hongzhi Qiao, David Oupicky, Minjie Sun
The present study reports a drug delivery system comprising nanostructured lipid carrier (NLCs) within liposomes (Lip-NLCs). This multiple lipid carrier complex features laser-triggered responsive drug release. Both hydrophobic and hydrophilic drugs can be loaded into the same formulation by applying an all-in-one strategy. We hypothesized that if we loaded the hydrophobic near-infrared (NIR) dye IR780 into the liposome phospholipid bilayer, the bilayer would be disrupted by laser irradiation so that drug release would be triggered remotely at the tumor site...
June 27, 2017: Journal of Controlled Release: Official Journal of the Controlled Release Society
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