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https://www.readbyqxmd.com/read/29156828/the-%C3%AE-glucan-from-lentinus-edodes-suppresses-cell-proliferation-and-promotes-apoptosis-in-estrogen-receptor-positive-breast-cancers
#1
Hui Xu, Siwei Zou, Xiaojuan Xu
Breast cancer is now the most common cancer in worldwide women, and novel interventions are needed to overcome the resistance occurring in the estrogen-targeted endocrine therapy. Herein, we demonstrate that the β-glucan from Lentinus edodes (LNT) exhibited a profound inhibition ratio of ∼53% against estrogen receptor positive (ER+) MCF-7 tumor growth in nude mice similar to the positive control of cisplatin. Immunohistochemistry images showed that LNT evidently suppressed cell proliferation and promoted apoptosis in MCF-7 tumor tissues...
October 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29156817/near-infrared-photothermal-therapy-using-anti-egfr-gold-nanorod-conjugates-for-triple-negative-breast-cancer
#2
Meihua Zhang, Hoe Suk Kim, Tiefeng Jin, Jisu Woo, Yin Ji Piao, Woo Kyung Moon
Current EGFR-targeted therapy for triple negative breast cancer (TNBC) has produced disappointing results. A rational therapeutic strategy to improve EGFR-targeted treatment for TNBC is therefore needed. In this study we evaluated the feasibility of treating TNBC using photoacoustic imaging (PAI)-guided near-infrared photothermal therapy (NIR-PTT) with anti-EGFR-conjugated gold nanorods (anti-EGFR-GN). NIR-PTT combined with anti-EGFR-GN exerted synergistic anti-proliferative and apoptotic actions through upregulation of HSP70 and cleaved caspase-3, downregulation of Ki-67 and EGFR, and inhibition of several intracellular signaling molecules (mTOR, AKT, ERK1/2 and FAK)...
October 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29156758/development-of-novel-long-noncoding-rna-malat1-near-infrared-optical-probes-for-in-vivo-tumour-imaging
#3
Meng-Jie Dong, Cai-Qin Wang, Guo-Lin Wang, Yue-Hong Wang, Zhen-Feng Liu
With the advent of next-generation sequencing technology, there is rapidly increasing interest in long noncoding RNAs (lncRNAs). The objectives of this study were to develop a novel lncRNA MALAT1 near-infrared optical probe, to evaluate the characteristics of this optical imaging probe in vitro and to determine whether it can be used for imaging MALAT1 expression in malignant tumours in vivo. Conjugation of Cy5.5 to MALAT1 ASO was accomplished using standard NHS (N-hydroxysuccinimide) ester procedures, and the labelled MALAT1 ASO was purified with a Glen-Pak DNA Purification Cartridge and reversed-phase high performance liquid chromatography (HPLC)...
October 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29156721/a-hemoglobin-based-oxygen-carrier-sensitized-cisplatin-based-chemotherapy-in-hepatocellular-carcinoma
#4
Xiang Qi, Bing L Wong, Sze Hang Lau, Kevin Tak-Pan Ng, Sui Yi Kwok, Chris Kin-Wai Sun, Fei Chuen Tzang, Yan Shao, Chang Xian Li, Wei Geng, Chang Chun Ling, Yuen Yuen Ma, Xiao Bing Liu, Hui Liu, Jiang Liu, Wai Ho Yeung, Chung Mau Lo, Kwan Man
Background and Objective: Our previous study showed that liver graft injury not only promotes tumor recurrence, but also induces chemoresistance in recurrent HCC after liver transplantation. Recently, we found that the hemoglobin-based oxygen carrier"YQ23" significantly ameliorates hepatic IR injury and prevent tumor recurrence. Here, we intended to explore the novel therapeutic strategy using oxygen carrier "YQ23"to sensitize chemotherapy in HCC. Methods: To investigate the role of YQ23 combined with Cisplatin, the proliferation of HCC cells was examined under combined treatment by MTT and colony formation...
October 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29156720/novel-strategies-of-raman-imaging-for-brain-tumor-research
#5
Imiela Anna, Polis Bartosz, Polis Lech, Abramczyk Halina
Raman diagnostics and imaging have been shown to be an effective tool for the analysis and discrimination of human brain tumors from normal structures. Raman spectroscopic methods have potential to be applied in clinical practice as they allow for identification of tumor margins during surgery. In this study, we investigate medulloblastoma (grade IV WHO) (n= 5), low-grade astrocytoma (grades I-II WHO) (n =4), ependymoma (n=3) and metastatic brain tumors (n= 1) and the tissue from the negative margins used as normal controls...
October 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29156712/radiolabelled-polymeric-iga-from-biodistribution-to-a-new-molecular-imaging-tool-in-colorectal-cancer-lung-metastases
#6
Helene Carpenet, Armelle Cuvillier, Aurélie Perraud, Ophélie Martin, Gaël Champier, Marie-Odile Jauberteau, Jacques Monteil, Isabelle Quelven
By radiolabelling monomeric (m) and polymeric (p) IgA with technetium 99m ((99m)Tc), this study assessed IgA biodistribution and tumour-targeting potency. IgA directed against carcinoembryonic antigen (CEA), a colorectal cancer marker, was selected to involve IgA mucosal tropism. Ig was radiolabelled with (99m)Tc-tricarbonyl after derivatisation by 2-iminothiolane. (99m)Tc-IgA was evaluated by in vitro analysis. The biodistributions of radiolabelled anti-CEA mIgA, pIgA and IgG were compared in normal mice. Anti-CEA pIgA tumour uptake was studied in mice bearing the WiDr caecal orthotopic graft...
October 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29156687/distribution-of-lymph-node-metastasis-from-lymphoepithelial-like-carcinoma-of-the-parotid
#7
LiNa Yin, Xue Huang, XiaoLan Liu, YongChun Zhang, Xiaoshen Wang
Purpose: To explore the distribution of node spread from lymphoepithelial-like carcinoma (LELC) of the parotid gland based on the 2013 updated guidelines for neck node levels. Results: 42 (58.3%) cases had metastatic nodes, all were localized at the ipsilateral neck. The detailed distribution was: level Ia 0, level Ib 6(14.3%), level II 34 (80.1%), level III 16 (38.1%), level IV 9 (21.4%), level V 7 (16.7%), level VI 0, level VII 0, level VIII 37 (88.1%), level IX 0, level Xa 2 (4...
October 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29156679/remote-intracranial-recurrence-of-idh-mutant-gliomas-is-associated-with-tp53-mutations-and-an-8q-gain
#8
Shunsuke Nakae, Takema Kato, Kazuhiro Murayama, Hikaru Sasaki, Masato Abe, Masanobu Kumon, Tadashi Kumai, Kei Yamashiro, Joji Inamasu, Mitsuhiro Hasegawa, Hiroki Kurahashi, Yuichi Hirose
Most IDH mutant gliomas harbor either 1p/19q co-deletions or TP53 mutation; 1p/19q co-deleted tumors have significantly better prognoses than tumors harboring TP53 mutations. To investigate the clinical factors that contribute to differences in tumor progression of IDH mutant gliomas, we classified recurrent tumor patterns based on MRI and correlated these patterns with their genomic characterization. Accordingly, in IDH mutant gliomas (N = 66), 1p/19 co-deleted gliomas only recurred locally, whereas TP53 mutant gliomas recurred both locally and in remote intracranial regions...
October 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29156650/nondestructive-evaluation-of-carbon-fiber-bicycle-frames-using-infrared-thermography
#9
Rubén Usamentiaga, Clemente Ibarra-Castanedo, Matthieu Klein, Xavier Maldague, Jeroen Peeters, Alvaro Sanchez-Beato
Bicycle frames made of carbon fibre are extremely popular for high-performance cycling due to the stiffness-to-weight ratio, which enables greater power transfer. However, products manufactured using carbon fibre are sensitive to impact damage. Therefore, intelligent nondestructive evaluation is a required step to prevent failures and ensure a secure usage of the bicycle. This work proposes an inspection method based on active thermography, a proven technique successfully applied to other materials. Different configurations for the inspection are tested, including power and heating time...
November 20, 2017: Sensors
https://www.readbyqxmd.com/read/29156649/short-term-choriocapillaris-changes-in-patients-with-central-serous-chorioretinopathy-after-half-dose-photodynamic-therapy
#10
Marco Nassisi, Carlo Lavia, Camilla Alovisi, Luca Musso, Chiara M Eandi
BACKGROUND: Although photodynamic therapy (PDT) has become the standard treatment for central serous chorioretinopathy (CSC), its mechanism of action remains unclear. It is assumed that PDT induces short-term choriocapillaris (CC) occlusion and long-term choroidal vascular remodeling. In this paper, we describe the short-term CC changes induced by Half-Dose PDT (HD-PDT) in chronic CSC using optical coherence tomography-angiography (OCTA). METHODS: This is a prospective interventional case series...
November 20, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29156627/multichannel-discriminative-detection-of-explosive-vapors-with-an-array-of-nanofibrous-membranes-loaded-with-quantum-dots
#11
Zhaofeng Wu, Haiming Duan, Zhijun Li, Jixi Guo, Furu Zhong, Yali Cao, Dianzeng Jia
The multichannel fluorescent sensor array based on nanofibrous membranes loaded with ZnS quantum dots (QDs) was created and demonstrated for the discriminative detection of explosives. The synergistic effect of the high surface-to-volume ratio of QDs, the good permeability of nanofibrous membranes and the differential response introduced by surface ligands was played by constructing the sensing array using nanofibrous membranes loaded with ZnS QDs featuring several surface ligands. Interestingly, although the fluorescence quenching of the nanofibrous membranes is not linearly related to the exposure time, the fingerprint of each explosive at different times is very similar in shape, and the fingerprints of the three explosives show different shapes...
November 20, 2017: Sensors
https://www.readbyqxmd.com/read/29156610/bevacizumab-for-patients-with-recurrent-multifocal-glioblastomas
#12
Michael C Burger, Stella Breuer, Hans C Cieplik, Patrick N Harter, Kea Franz, Oliver Bähr, Joachim P Steinbach
In patients with glioblastoma, antiangiogenic therapy with bevacizumab (BEV) has been shown to improve progression-free survival (PFS), but not overall survival (OS). Especially in patients with an unusual infiltrative phenotype as seen in multifocal glioblastoma, the use of BEV therapy is still more controversial. Therefore, we prepared a retrospective case series with 16 patients suffering from a multifocal glioblastoma treated with BEV. We compared these patients to a matched control cohort of 16 patients suffering from glioblastoma with a single lesion treated with BEV...
November 20, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29156557/the-invasive-region-of-glioblastoma-defined-by-5ala-guided-surgery-has-an-altered-cancer-stem-cell-marker-profile-compared-to-central-tumour
#13
Stuart J Smith, Mohammed Diksin, Saachi Chhaya, Shwetha Sairam, Maria A Estevez-Cebrero, Ruman Rahman
Glioblastoma, a WHO grade IV astrocytoma, is a highly aggressive and heterogeneous tumour that infiltrates deeply into surrounding brain parenchyma, making complete surgical resection impossible. Despite chemo-radiotherapy, the residual cell population within brain parenchyma post-surgery causes inevitable recurrence. Previously, the tumour core has been the focus of research and the basis for targeted therapeutic regimes, which have failed to improve survival in clinical trials. Here, we focus on the invasive margin as defined by the region with 5-aminolevulinic acid (5ALA) (GliolanTM) fluorescence at surgery beyond the T1 enhancing region on magnetic resonance imaging (MRI)...
November 18, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29156475/transient-severe-respiratory-motion-artifacts-after-application-of-gadoxetate-disodium-what-we-currently-know
#14
Lennart Well, Julius Matthias Weinrich, Gerhard Adam, Peter Bannas
Background Gadoxetate disodium is an intracellular contrast agent for magnetic resonance imaging (MRI) of the liver. Recent publications revealed that injection of gadoxetate disodium can lead to imaging artifacts due to transient severe motion (TSM) in the arterial phase of contrast-enhanced liver MRI. In this review we present and discuss published frequencies of TSM, contrast injection and image acquisition protocols, potential risk factors, and proposed strategies to avoid or minimize the effects of TSM...
November 20, 2017: RöFo: Fortschritte Auf Dem Gebiete der Röntgenstrahlen und der Nuklearmedizin
https://www.readbyqxmd.com/read/29156474/ct-and-mri-findings-in-cerebral-aspergilloma
#15
Friederike Gärtner, Julia Forstenpointner, Birgit Ertl-Wagner, Babak Hooshmand, Christian Riedel, Olav Jansen
Purpose Invasive aspergillosis usually affects immunocompromised patients. It carries a high risk of morbidity and mortality and usually has a nonspecific clinical presentation. Early diagnosis is essential in order to start effective treatment and improve clinical outcome. Materials and Methods In a retrospective search of the PACS databases from two medical centers, we identified 9 patients with histologically proven cerebral aspergilloma. We systematically analyzed CT and MRI imaging findings to identify typical imaging appearances of cerebral aspergilloma...
November 20, 2017: RöFo: Fortschritte Auf Dem Gebiete der Röntgenstrahlen und der Nuklearmedizin
https://www.readbyqxmd.com/read/29156458/-imaging-in-rhabdomyolysis-with-ectopic-dystrophic-calcification
#16
Joseph Kauer, Olga Maksimovic, Michael Haap, Marius Horger
No abstract text is available yet for this article.
December 2017: RöFo: Fortschritte Auf Dem Gebiete der Röntgenstrahlen und der Nuklearmedizin
https://www.readbyqxmd.com/read/29156397/composition-determination-of-multinary-iii-v-semiconductors-via-stem-haadf-multislice-simulations
#17
Lennart Duschek, Andreas Beyer, Jan Oliver Oelerich, Kerstin Volz
Knowledge of the microscopic elemental composition of multinary III/V semiconductor materials is crucial to the development of functionalized opto-electronic devices. Well-proven composition analysis methods, such as high resolution X-ray diffraction (HRXRD), fail to determine the elemental composition when more than three atomic species are involved. In this work we propose a procedure for the composition analysis of multinary III/V semiconductors at atomic resolution using high angle annular dark field (HAADF) scanning transmission electron microscopy (STEM) image simulations...
November 9, 2017: Ultramicroscopy
https://www.readbyqxmd.com/read/29156383/diagnosis-of-distant-metastasis-of-lung-cancer-based-on-clinical-and-radiomic-features
#18
Hongyu Zhou, Di Dong, Bojiang Chen, Mengjie Fang, Yue Cheng, Yuncun Gan, Rui Zhang, Liwen Zhang, Yali Zang, Zhenyu Liu, Hairong Zheng, Weimin Li, Jie Tian
OBJECTIVES: To analyze the distant metastasis possibility based on computed tomography (CT) radiomic features in patients with lung cancer. METHODS: This was a retrospective analysis of 348 patients with lung cancer enrolled between 2014 and February 2015. A feature set containing clinical features and 485 radiomic features was extracted from the pretherapy CT images. Feature selection via concave minimization (FSV) was used to select effective features. A support vector machine (SVM) was used to evaluate the predictive ability of each feature...
November 17, 2017: Translational Oncology
https://www.readbyqxmd.com/read/29156364/pattern-recognition-of-magnetic-resonance-imaging-based-gray-matter-volume-measurements-classifies-bipolar-disorder-and-major-depressive-disorder
#19
Harry Rubin-Falcone, Francesca Zanderigo, Binod Thapa-Chhetry, Martin Lan, Jeffrey M Miller, M Elizabeth Sublette, Maria A Oquendo, David J Hellerstein, Patrick J McGrath, Johnathan W Stewart, J John Mann
BACKGROUND: Bipolar Disorder (BD) cannot be reliably distinguished from Major Depressive Disorder (MDD) until the first manic or hypomanic episode. Consequently, many patients with BD are treated with antidepressants without mood stabilizers, a strategy that is often ineffective and carries a risk of inducing a manic episode. We previously reported reduced cortical thickness in right precuneus, right caudal middle-frontal cortex and left inferior parietal cortex in BD compared with MDD...
November 13, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/29156231/acute-organoaxial-gastric-volvulus-a-massive-problem-with-a-twist-case-report
#20
Fadi Al Daoud, Gul Sachwani Daswani, Vinu Perinjelil, Tina Nigam
INTRODUCTION: Gastric volvulus (GV) is a rare and life threatening condition if not treated promptly or wrongly diagnosed. The main complication of gastric volvulus is foregut obstruction. The extreme rotation can cut off blood supply to the stomach and even distal organs, which can lead to ischemia and necrosis of the affected area. PRESENTATION OF CASE: We report a case of a 41yo female that complained of severe abdominal pain, nausea and vomiting for approximately 3days after eating a large meal...
November 13, 2017: International Journal of Surgery Case Reports
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