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https://www.readbyqxmd.com/read/28817832/successful-use-of-grenz-rays-for-disseminated-superficial-actinic-porokeratosis-report-of-8-cases
#1
Egle Ramelyte, Matilda Bylaite-Bucinskiene, Reinhard Dummer, Laurence Imhof
BACKGROUND: Disseminated superficial actinic porokeratosis (DSAP) is a rare keratinization disorder with potential malignant transformation, for which present treatment strategies show limited success. AIM: To evaluate the response of DSAP lesions to grenz ray radiotherapy (RTx). METHODS: Data of patients treated with RTx at University Hospital Zurich, Switzerland, between 2004 and 2015, were reviewed. Patients with DSAP, who received at least 1 RTx treatment session and who had been followed up for at least 4 weeks were included in the further data analysis...
August 18, 2017: Dermatology: International Journal for Clinical and Investigative Dermatology
https://www.readbyqxmd.com/read/28817265/highly-efficient-performance-and-conversion-pathway-of-photocatalytic-no-oxidation-on-sro-clusters-amorphous-carbon-nitride
#2
Wen Cui, Jieyuan Li, Fan Dong, Yanjuan Sun, Guangming Jiang, Wanglai Cen, Shun Cheng Lee, Zhongbiao Wu
This work demonstrates the first molecular-level conversion pathway of NO oxidation over a novel SrO-clusters@amorphous carbon nitride (SCO-ACN) photocatalyst, which is synthesized via co-pyrolysis of urea and SrCO3. The inclusion of SrCO3 is crucial in the formation of the amorphous carbon nitride (ACN) and SrO clusters by attacking the intralayer hydrogen bonds at the edge sites of graphitic carbon nitride (CN). The amorphous nature of ACN can promote the transportation, migration, and transformation of charge carriers on SCO-ACN...
August 17, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28817254/highly-001-textured-tetragonal-bifeo3-film-and-its-photoelectrochemical-behaviors-tuned-by-magnetic-field
#3
Haomin Xu, Yuanhua Lin, Takashi Harumoto, Ji Shi, Ce-Wen Nan
Highly (001)-textured BiFeO3 film in tetragonal phase (T-BFO) with a giant c/a ratio was firstly obtained on quartz/polycrystalline ITO substrate. Our results indicate that the polycrystalline ITO layer with small surface roughness is a critical point to control the growth of T-BFO structure. It should be ascribed to the fact that a Bi-rich phase interlayer (~5 nm) could be formed on ITO, which acted as a crystal seed layer and thus induced the growth of (001)-textured T-BFO structure. The observed weak room temperature ferromagnetism should be attributed to Fe valance change...
August 17, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28817146/controlled-deposition-of-palladium-nanodendrites-on-the-tips-of-gold-nanorods-and-their-enhanced-catalytic-activity
#4
Gaoxing Su, Huaqiao Jiang, Hongyan Zhu, Jing-Jing Lv, Guohai Yang, Bing Yan, Jun-Jie Zhu
Plasmonic Au-Pd nanostructures have drawn significant attention for use in heterogeneous catalysis. In this study, palladium nanodendrite-tipped gold nanorods (PdND-T-AuNRs) were subjected to a facile fabrication under mild reaction conditions. The palladium amounts on the two tips were tunable. In the preparation of PdND-T-AuNRs, dense capped AuNRs, a low reaction temperature, and suitable stabilizing agents were identified as critical reaction parameters for controlling palladium nanodendrites deposited on both ends of AuNRs...
August 17, 2017: Nanoscale
https://www.readbyqxmd.com/read/28816796/intrathecal-infusion-of-haploidentical-nondonor-lymphocytes-for-central-nervous-system-leukemic-relapse-after-haploidentical-hematopoietic-stem-cell-transplantation
#5
Azusa Mayumi, Akihisa Sawada, Aya Ioi, Kohei Higuchi, Mariko Shimizu, Maho Sato, Masahiro Yasui, Masami Inoue
Leukemic relapse in the central nervous system (CNS) after conventional treatment is associated with a poor prognosis. The effectiveness and safety of IV infusion of human leukocyte antigen (HLA)-mismatched lymphocytes for leukemia, and intrathecal (IT) infusion of HLA-mismatched lymphocytes for cerebrospinal fluid (CSF) dissemination of medulloblastoma have been reported. A 13-year-old girl (HLA-A31) was diagnosed as relapsing from Philadelphia chromosome-positive acute leukemia in the CNS after receiving chemotherapy, tyrosine kinase inhibitors, haploidentical hematopoietic stem cell transplantation (HSCT) from her father (HLA-A31), and craniospinal irradiation...
August 14, 2017: Journal of Pediatric Hematology/oncology
https://www.readbyqxmd.com/read/28816439/1-3-dipolar-cycloaddition-reactions-for-the-synthesis-of-novel-oxindole-derivatives-and-their-cytotoxic-properties
#6
Prakash Rambhau Mali, Prashishkumar Kisan Shirsat, Navnath Bapurao Khomane, V Lakshama Nayak, Jagadeesh Babu Nanubolu, Harshadas Mitaram Meshram
The multicomponent reaction between isatin, amino acid, but-2-ynedioates and phenacyl bromide has been developed using microwave irradiation under catalyst and base free conditions in aqueous medium. This synthetic protocol is useful for the synthesis of various functionalized spirooxindole derivatives. This MCR exhibits a broad substrate scope with excellent yields and shorter reaction time. Additionally the synthesized spirooxindole derivatives were evaluated for their anticancer activity against three human cancer cell lines; MCF-7 (breast), A549 (lung) and Hela cervical...
August 17, 2017: ACS Combinatorial Science
https://www.readbyqxmd.com/read/28816419/tubulin-acetylation-accompanies-autophagy-development-induced-by-different-abiotic-stimuli-in-arabidopsis-thaliana
#7
Vira Olenieva, Dmytro Lytvyn, Alla Yemets, Catherine Bergounioux, Yaroslav Blume
Microtubules (MTs) play an important role in the regulation of autophagy development in yeast and animal as well as in plant cells. MTs participate in maturation and traffic of autophagosomes through their dynamic state changes and post-translational modifications of tubulin, namely acetylation. We subjected Arabidopsis thaliana seedlings to metabolic-, salt-, osmotic stresses as well as irradiation of ultraviolet B and investigated the involvement of plant MTs in the development of stress-induced autophagy via tubulin acetylation...
August 17, 2017: Cell Biology International
https://www.readbyqxmd.com/read/28816311/hierarchical-core-shell-sio2-pda-biobr-microspheres-with-enhanced-visible-light-driven-photocatalytic-performance
#8
Shuai-Ru Zhu, Qi Qi, Wen-Na Zhao, Meng-Ke Wu, Yuan Fang, Kai Tao, Fei-Yan Yi, Lei Han
To explore catalysts combining highly accessible specific surface areas with low recombination of the photo-induced electron-hole pairs, a novel SiO2@PDA@BiOBr composite photocatalyst with a hierarchical core-shell structure was prepared by a facile solvothermal method. The catalyst shows a superior performance on photodegradation of Rhodamine B under visible light irradiation, especially for SiO2@PDA-2@BiOBr with the reactant kinetics constant (k = 0.0487 min(-1)). The enhanced photocatalytic performance of SiO2@PDA-2@BiOBr was ascribed to the decreased band-gap, higher surface area, and effectively photo-generated electron-hole pairs by the introduction of polydopamine (PDA)...
August 17, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/28816214/synchronous-malignancies-of-thyroglossal-duct-cyst-and-thyroid-gland
#9
Chinna Naik, Sandip Basu
Malignant involvement of thyroglossal duct cyst is rare, still rarer is the synchronous malignant involvement of the thyroid gland. Although the Sistrunk procedure is often regarded as adequate, controversy exists of the need for an additional total thyroidectomy and radioiodine ablative therapy, the decision of which depends upon the presence of (i) suspicious thyroid gland nodule; (ii) presence of lymphadenopathy; or (iii) a previous history of neck irradiation. We report a 47-year-old woman diagnosed with papillary carcinoma within a recurrent thyroglossal duct cyst with infiltration into surrounding soft tissues and a suspicious thyroid nodule of the left thyroid lobe with no regional lymph node involvement...
March 2017: National Medical Journal of India
https://www.readbyqxmd.com/read/28816158/a-multi-institutional-prospective-observational-study-of-stereotactic-radiosurgery-for-patients-with-multiple-brain-metastases-jlgk0901-study-update-irradiation-related-complications-and-long-term-maintenance-of-mini-mental-state-examination-scores
#10
Masaaki Yamamoto, Toru Serizawa, Yoshinori Higuchi, Yasunori Sato, Jun Kawagishi, Kazuhiro Yamanaka, Takashi Shuto, Atsuya Akabane, Hidefumi Jokura, Shoji Yomo, Osamu Nagano, Hidefumi Aoyama
PURPOSE: The JLGK0901 study showed the noninferiority of stereotactic radiosurgery (SRS) alone as initial treatment of 5 to 10 brain metastases (BMs) compared with 2 to 4 BMs in terms of overall survival and most secondary endpoints (Lancet Oncol 2014;15:387-95). However, observation periods were not long enough to allow confirmation of the long-term safety of SRS alone in patients with 5 to 10 BMs. METHODS AND MATERIALS: This was a prospective observational study of Gamma Knife SRS-treated patients with 1 to 10 newly diagnosed BMs enrolled at 23 facilities between March 1, 2009, and February 15, 2012...
September 1, 2017: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/28816157/prophylactic-cranial-irradiation-for-small-cell-lung-cancer-new-insights
#11
Megan E Daly, David A Palma
No abstract text is available yet for this article.
September 1, 2017: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/28816146/quality-assessment-of-stereotactic-radiosurgery-of-a-melanoma-brain-metastases-model-using-a-mouselike-phantom-and-the-small-animal-radiation-research-platform
#12
Cheng-Chia Wu, Kunal R Chaudhary, Yong Hum Na, David Welch, Paul J Black, Adam M Sonabend, Peter Canoll, Yvonne M Saenger, Tony J C Wang, Cheng-Shie Wuu, Tom K Hei, Simon K Cheng
PURPOSE: To establish a novel preclinical model for stereotactic radiosurgery (SRS) with combined mouselike phantom quality assurance in the setting of brain metastases. METHODS AND MATERIALS: C57B6 mice underwent intracranial injection of B16-F10 melanoma cells. T1-weighted postcontrast magnetic resonance imaging (MRI) was performed on day 11 after injection. The MRI images were fused with cone beam computed tomography (CBCT) images using the Small Animal Radiation Research Platform (SARRP)...
September 1, 2017: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/28816145/strain-imaging-detects-dose-dependent-segmental-cardiac-dysfunction-in-the-acute-phase-after-breast-irradiation
#13
Queenie Lo, Leia Hee, Vikneswary Batumalai, Christine Allman, Peter MacDonald, Denise Lonergan, Geoff P Delaney, Liza Thomas
PURPOSE: We examined the utility of echocardiographic 2-dimensional speckle tracking strain imaging (SI) for the evaluation of segmental myocardial dysfunction before and after radiation therapy (RT) and the relationship to dose exposure. METHODS AND MATERIALS: We prospectively recruited 40 women with left-sided breast cancer, undergoing only adjuvant RT to the left chest. Comparisons of traditional echocardiographic parameters and SI parameters at baseline and 6 weeks after RT were analyzed...
September 1, 2017: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/28816144/comparison-of-treatment-outcome-between-invasive-lobular-and-ductal-carcinomas-in-patients-receiving-partial-breast-irradiation-with-intraoperative-electrons
#14
Maria Cristina Leonardi, Patrick Maisonneuve, Mauro Giuseppe Mastropasqua, Federica Cattani, Giuseppe Fanetti, Anna Morra, Roberta Lazzari, Federica Bazzani, Mariangela Caputo, Nicole Rotmensz, Marianna Alessandra Gerardi, Rosalinda Ricotti, Viviana Enrica Galimberti, Paolo Veronesi, Samantha Dicuonzo, Giuseppe Viale, Barbara Alicja Jereczek-Fossa, Roberto Orecchia
PURPOSE: To investigate the local outcome of patients after accelerated partial breast irradiation with intraoperative electrons (IORT) for invasive lobular carcinoma (ILC) compared with invasive ductal carcinoma (IDC). METHODS AND MATERIALS: From 1999 to 2007, 2173 patients were treated with breast-conserving surgery and IORT (21 Gy/1 fraction) as the sole local treatment: 252 patients with ILC (11.6%) were compared with 1921 patients with IDC in terms of local control...
September 1, 2017: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/28816036/surface-interface-carrier-transport-modulation-for-constructing-photon-alternative-ultraviolet-detectors-based-on-self-bending-assembled-zno-nanowires
#15
Zhen Guo, Lianqun Zhou, Yuguo Tang, Lin Li, Zhiqi Zhang, Hongbo Yang, Hanbin Ma, Arokia Nathan, Dongxu Zhao
Surface/interface charge carrier generation, diffusion and recombination/transport modulation are especially important in the construction of photodetectors with high-efficiency in the field of nanoscience. In the paper, a kind of ultraviolet (UV) detector is designed based on ZnO nanostructures considering photon-trapping, surface plasmonic resonance (SPR), piezophototronic effect, interface carrier trapping/transport control and collection. Through carefully optimized surface/interface carrier transport modulation, the designed device with detectivity as high as of 1...
August 17, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28815994/imrt-qa-using-machine-learning-a-multi-institutional-validation
#16
Gilmer Valdes, Maria F Chan, Seng Boh Lim, Ryan Scheuermann, Joseph O Deasy, Timothy D Solberg
PURPOSE: To validate a machine learning approach to Virtual intensity-modulated radiation therapy (IMRT) quality assurance (QA) for accurately predicting gamma passing rates using different measurement approaches at different institutions. METHODS: A Virtual IMRT QA framework was previously developed using a machine learning algorithm based on 498 IMRT plans, in which QA measurements were performed using diode-array detectors and a 3%local/3 mm with 10% threshold at Institution 1...
August 17, 2017: Journal of Applied Clinical Medical Physics
https://www.readbyqxmd.com/read/28815793/responsiveness-and-morphology-study-of-dual-stimuli-controlled-supramolecular-polymer
#17
Chenxiao Xiong, Meiran Xie, Ruyi Sun
The synthesis and characterization of a linear supramolecular polymer formed by dual host-guest recognitions is presented. The polymer linked by the orthogonal interactions of azobenzene with β-cyclodextrin and methyl viologen with sulfonatocalix[4]arene is constructed, and the morphology change along with the formation and vanishment of host-guest interaction is investigated. The reversible disassembly-reassembly of the polymer induced by light and the redox process are monitored by UV-vis and cyclic voltammetry, respectively...
August 16, 2017: Macromolecular Rapid Communications
https://www.readbyqxmd.com/read/28815594/differential-effects-of-changes-in-spectral-irradiance-on-photoacclimation-primary-productivity-and-growth-in-rhodomonas-salina-cryptophyceae-and-skeletonema-costatum-bacillariophyceae-in-simulated-blackwater-environments
#18
Evelyn Lawrenz, Tammi L Richardson
The underwater light field in blackwater environments is strongly skewed towards the red end of the electromagnetic spectrum due to blue light absorption by colored dissolved organic matter (CDOM). Exposure of phytoplankton to full spectrum irradiance occurs only when cells are mixed up to the surface. We studied the potential effects of mixing-induced changes in spectral irradiance on photoacclimation, primary productivity and growth in cultures of the cryptophyte Rhodomonas salina and the diatom Skeletonema costatum...
August 16, 2017: Journal of Phycology
https://www.readbyqxmd.com/read/28815502/flping-genes-on-and-off-in-drosophila
#19
Bonnie M Weasner, Jinjin Zhu, Justin P Kumar
The fruit fly, Drosophila melanogaster, has been a favorite experimental system of developmental biologists for more than a century. One of the most attractive features of this model system is the clarity by which one can analyze mutant phenotypes. Most genes are found in single copies, and loss-of-function mutants often have obvious phenotypes that can be analyzed during development and in adulthood. As with all metazoans, a significant fraction of Drosophila genes are used during both embryonic and postembryonic development, and null mutants often die during embryogenesis thereby precluding the analysis of postembryonic tissues...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28815312/trilateral-retinoblastoma-a-systematic-review-of-211-cases
#20
REVIEW
Ryuya Yamanaka, Azusa Hayano, Yasuo Takashima
We conducted a systematic review of 72 studies to characterize trilateral retinoblastomas. Kaplan-Meier analysis was used to estimate survival, and statistical significance was assessed by using a log-rank test. We analyzed 211 cases of trilateral retinoblastomas. The average age of onset of retinoblastoma was 0.79 ± 1.38 years, and the average latency period between the onset of retinoblastomas and trilateral retinoblastomas was 1.49 ± 1.76 years. The brain tumors were found before the retinoblastoma diagnosis in 6 cases (3...
August 16, 2017: Neurosurgical Review
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