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https://www.readbyqxmd.com/read/29241276/multiband-mucosectomy-for-the-treatment-of-challenging-non-pedunculated-colorectal-polyps
#1
Joaquín Rodríguez-Sánchez, Eva De la Santa Belda, Pilar Olivencia Palomar, Margarita Úbeda Muñoz, José Olmedo Camacho
Background and study aims Endoscopic mucosal resection is the gold standard treatment for non-pedunculated colorectal polyps; however, some specific situations (location behind folds, scarred or flat morphology) can make this technique challenging. We aimed to assess the efficacy and safety of multiband mucosectomy (MBM) for resection of non-pedunculated colorectal polyps. Patients and methods This was a retrospective study of patients in whom MBM was performed to resect large non-pedunculated colorectal polyps...
December 14, 2017: Endoscopy
https://www.readbyqxmd.com/read/29241102/utility-of-hepatobiliary-scintigraphy-for-recurrent-reflux-cholangitis-following-choledochojejunostomy-a-case-report
#2
Masateru Yamamoto, Hiroyuki Tahara, Michinori Hamaoka, Seiichi Shimizu, Shintaro Kuroda, Masahiro Ohira, Kentaro Ide, Tsuyoshi Kobayashi, Hideki Ohdan
INTRODUCTION: Reflux cholangitis is a frequent complication of Roux-en-Y choledochojejunostomy. PRESENTATION OF CASE: A 68-year-old male underwent left lobectomy of the liver, bile duct resection and choledochojejunostomy for intrahepatic cholangiocarcinoma located in Segment 2 of the liver, 40mm in diameter with a lymph node metastasis 5 years ago. He had frequent recurrences of postoperative reflux cholangitis and hepatic abscesses and was treated with antibiotics each time...
December 9, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/29240399/trapping-structural-coloration-by-a-bioinspired-gyroid-microstructure-in-solid-state
#3
En-Li Lin, Wei-Lun Hsu, Yeo-Wan Chiang
In theory, gyroid photonic crystals in butterfly wings exhibit advanced optical properties as a result of their highly interconnected microstructures. Because of the difficulties in synthesizing artificial gyroid materials having periodicity corresponding to visible wavelengths, human-made visible gyroid photonic crystals are still unachievable by self-assembly. In this study, we develop a physical approach-trapping of structural coloration (TOSC)-through which the visible structural coloration of an expanded gyroid lattice in a solvated state can be preserved in the solid state, thereby allowing the fabrication of visible-wavelength gyroid photonic crystals...
December 14, 2017: ACS Nano
https://www.readbyqxmd.com/read/29240047/synthesis-and-dft-calculations-of-novel-vanillin-chalcones-and-their-3-aryl-5-4-2-dimethylamino-ethoxy-3-methoxyphenyl-4-5-dihydro-1h-pyrazole-1-carbaldehyde-derivatives-as-antifungal-agents
#4
Luis Alberto Illicachi, Joel José Montalvo-Acosta, Alberto Insuasty, Jairo Quiroga, Rodrigo Abonia, Maximiliano Sortino, Susana Zacchino, Braulio Insuasty
Novel (E)-1-(aryl)-3-(4-(2-(dimethylamino)ethoxy)-3-methoxyphenyl) prop-2-en-1-ones 4 were synthesized by a Claisen-Schmidt reaction of 4-(2-(dimethylamino)ethoxy)-3-methoxy-benzaldehyde (2) with several acetophenone derivatives 3. Subsequently, cyclocondensation reactions of chalcones 4 with hydrazine hydrate afforded the new racemic 3-aryl-5-(4-(2-(dimethylamino)ethoxy)-3-methoxyphenyl)-4,5-dihydro-1H-pyrazole-1-carbaldehydes 5 when the reaction was carried out in formic acid. The antifungal activity of both series of compounds against eight fungal species was determined...
September 5, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29239808/drug-class-renal-elimination-and-outcomes-of-direct-oral-anticoagulants-in-asian-patients-a-meta-analysis
#5
Kang-Ling Wang, Chun-Chih Chiu, Robert P Giugliano, Doreen Su-Yin Tan, Chun-Yi Lin, En-Yu Lai, Shinya Goto, Chern-En Chiang
BACKGROUND: Direct oral anticoagulants (DOACs) have a better risk benefit profile in Asian patients with atrial fibrillation (AF). Whether treatment effects could be modified by drug class and dependency on renal elimination of studied agents has not yet been explored. METHODS: We searched PubMed, CENTRAL, and CINAHL databases through November 2016 for phase III randomized controlled trials comparing DOACs with warfarin in patients with AF. Efficacy and safety outcomes were pooled according to drug class and dependency on renal elimination of DOACs and were compared with the Mantel-Haenszel fixed-effects model...
November 24, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/29239557/variability-of-nutrients-intake-lipid-profile-and-cardiovascular-mortality-among-geographical-areas-in-spain-the-drece-study
#6
Agustín Gómez de la Cámara, Eva De Andrés Esteban, Gerard Urrútia Cuchí, Enrique Calderón Sandubete, Miguel Ángel Rubio Herrera, Miguel Menéndez Orenga, David Lora Pablos
It has often been suggested that cardiovascular mortality and their geographical heterogeneity are associated with nutrients intake patterns and also lipid profile. The large Spanish study Dieta y Riesgo de Enfermedades Cardiovasculares en España (DRECE) investigated this theory from 1991 to 2010. Out of the 4,783 Spanish individuals making up the DRECE cohort, 220 subjects (148 men and 72 women) died (4.62%) during the course of the study. The mean age of patients who died from cardiovascular causes (32 in all) was 61...
November 7, 2017: Geospatial Health
https://www.readbyqxmd.com/read/29239343/surgery-and-considerations-for-the-repair-of-petersen-s-space-hernia-after-mini-gastric-bypass
#7
Borja Camacho Fernández-Pacheco, Eudaldo López-Tomassetti Fernández, Juan Ramón Hernández Hernández
This paper reports a case of Petersen's space hernia after mini gastric bypass. This is an anecdotal post-operative complication in the mini gastric bypass technique, with an estimated rate of 1/5000 cases. Similar cases described in the literature were treated by the surgical hernia reduction and the closure of the mesenteric defect. Our patient had a unique management, performing a conversion to Roux-en-Y gastric bypass with dissection of the biliopancreatic limb at the anastomosis and creation of a variable foot-point anastomosis with excellent mid-term post-operative results...
January 2018: Journal of Minimal Access Surgery
https://www.readbyqxmd.com/read/29239275/activation-of-lysophosphatidic-acid-receptor-3-inhibits-megakaryopoiesis-in-human-hematopoietic-stem-cells-and-zebrafish
#8
Kuan-Hung Lin, Meng-Wei Li, Ya-Chi Chang, Yu-Nung Lin, Ya-Hsuan Ho, Wei-Chun Weng, Chang-Jen Huang, Bei-En Chang, Chao-Ling Yao, Hsinyu Lee
Lysophosphatidic acid (LPA) is a membrane-derived lysophospholipid that exists in the plasma and platelets. It exerts its functions through activation of various LPA receptors (LPARs), which belong to the family of G protein-coupled receptors (GPCRs). Activation of LPARs has important roles in stem cell differentiation. However, how LPA affects human hematopoietic stem cell (HSC) differentiation remains elusive. In our previous studies, we have suggested that LPA receptor 2 (LPA<sub>2</sub>) and LPA receptor 3 (LPA<sub>3</sub>) play opposing roles, and may act as a molecular switch during megakaryocytic differentiation in K562 cells...
December 14, 2017: Stem Cells and Development
https://www.readbyqxmd.com/read/29239274/magnetic-resonance-feature-of-paintbrush-borders-sign-as-a-novel-way-to-predict-recurrence-of-giant-cell-tumor-of-bone-after-curettage-a-pilot-study
#9
Yifeng He, Jun Wang, Ji Zhang, Lianjun Du, Yong Lu, Jianqiang Xu, Fei Yuan, Yimin Tan, Xiaoyi Ding
Objective To identify the prognostic factors for local recurrence of giant cell tumor of bone (GCTB) through assessment of the preoperative imaging features of the tumor border. Methods Patients with GCTBs treated with intralesional procedures in the proximal tibia and distal femur were prospectively enrolled and then followed up for at least 2 years. The GCTBs were grouped according to their preoperative imaging features. GCTBs treated with en bloc resection were enrolled for investigation of the pathologic basis of specific imaging features...
January 1, 2017: Journal of International Medical Research
https://www.readbyqxmd.com/read/29238852/combined-in-depth-3d-en-face-imaging-of-the-optic-disc-optic-disc-pits-and-optic-disc-pit-maculopathy-using-swept-source-megahertz-oct-at-1050%C3%A2-nm
#10
Josef Maertz, Jan Philip Kolb, Thomas Klein, Kathrin J Mohler, Matthias Eibl, Wolfgang Wieser, Robert Huber, Siegfried Priglinger, Armin Wolf
PURPOSE: To demonstrate papillary imaging of eyes with optic disc pits (ODP) or optic disc pit associated maculopathy (ODP-M) with ultrahigh-speed swept-source optical coherence tomography (SS-OCT) at 1.68 million A-scans/s. To generate 3D-renderings of the papillary area with 3D volume-reconstructions of the ODP and highly resolved en face images from a single densely-sampled megahertz-OCT (MHz-OCT) dataset for investigation of ODP-characteristics. METHODS: A 1...
December 14, 2017: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/29237328/modeling-the-full-length-hiv-1-gag-polyprotein-reveals-the-role-of-its-p6-subunit-in-viral-maturation-and-the-effect-of-non-cleavage-site-mutations-in-protease-drug-resistance
#11
Chinh Tran-To Su, Chee-Keong Kwoh, Chandra Shekhar Verma, Samuel Ken-En Gan
HIV polyprotein Gag is increasingly found to contribute to protease inhibitor resistance. Despite its role in viral maturation and in developing drug resistance, there remain gaps in the knowledge of the role of certain Gag subunits (e.g. p6), and that of non-cleavage mutations in drug resistance. As p6 is flexible, it poses a problem for structural experiments, and is hence often omitted in experimental Gag structural studies. Nonetheless, as p6 is an indispensable component for viral assembly and maturation, we have modeled the full length Gag structure based on several experimentally determined constraints and studied its structural dynamics...
December 13, 2017: Journal of Biomolecular Structure & Dynamics
https://www.readbyqxmd.com/read/29237264/dual-ratiometric-target-triggered-fluorescent-probe-for-simultaneous-quantitative-visualization-of-tumor-microenvironment-protease-activity-and-ph-in-vivo
#12
Tiancong Ma, Yi Hou, Jianfeng Zeng, Chunyan Liu, Peisen Zhang, Lihong Jing, Dihua Shangguan, Mingyuan Gao
The abnormal expression of tumor-associated proteases and lowered extracellular pH are important signatures strongly associated with cancer invasion, progression, and metastasis. However, their malignant effects were mainly identified using cell and tissue studies. To non-invasively visualize the heterogeneous distribution of these abnormal indicators in vivo and further disclose their collective behaviors, a target-triggered fluorescent nanoprobe composed of a ratiometric pH-sensitive dye, a near infrared dye (Cy5...
December 14, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/29237203/short-term-outcomes-following-endoscopic-submucosal-dissection-of-large-protruding-colorectal-neoplasms
#13
Taku Sakamoto, Yutaka Saito, Fumihiko Nakamura, Seiichiro Abe, Hiroyuki Takamaru, Masau Sekiguchi, Masayoshi Yamada, Takeshi Nakajima, Takahisa Matsuda, Hidetsugu Yamagishi, Hiroyuki Kato
Background Although submucosal dissection is useful for treating laterally spreading colorectal tumors, there is little information regarding the endoscopic treatment of large protruding colorectal neoplasms. Here, we aimed to evaluate the clinical outcomes of endoscopic submucosal dissection for protruding colorectal neoplasms ≥ 20 mm in diameter. Methods In total, 112 consecutive patients undergoing treatment between January 2005 and June 2017 were enrolled retrospectively. The study period was divided into six periods to evaluate any changes in outcomes over time...
December 13, 2017: Endoscopy
https://www.readbyqxmd.com/read/29237132/anastomotic-stricture-rates-following-roux-en-y-gastric-bypass-for-morbid-obesity-a-comparison-between-linear-and-circular-stapled-anastomosis
#14
Harbi Khalayleh, Guy Pines, Ashraf Imam, Shimon Sapojnikov, Victor Buyeviz, Eli Mavor
BACKGROUND: Laparoscopic Roux-en-Y gastric bypass (LRYGB) is an effective procedure in the management of morbid obesity with variations in outcome, which are technique dependent. Anastomotic stricture remains an important complication. The aim of this study was to assess the long-term outcome of patients undergoing either a linear-stapled anastomosis (LSA) or circular-stapled anastomosis (CSA) with an emphasis on postoperative stricture formation and excess body weight loss (EBWL). METHODS: Medical records of all patients who underwent bariatric surgery between 2008 and 2013 at a single bariatric surgical center were reviewed...
December 13, 2017: Journal of Laparoendoscopic & Advanced Surgical Techniques. Part A
https://www.readbyqxmd.com/read/29237090/distinctive-cutaneous-and-systemic-features-associated-with-specific-anti-myositis-antibodies-in-adults-with-dermatomyositis-a-prospective-multicentric-study-of-117-patients
#15
M Best, M Jachiet, N Molinari, F Manna, C Girard, V Pallure, A Cosnes, D Lipsker, T Hubiche, J-L Schmutz, Y Le Corre, N Cordel, M Dandurand, O Dereure, B Guillot, A Du-Thanh, C Bulai Livideanu, F Chasset, J-D Bouaziz, C Francès, D Bengoufa, T Vincent, D Bessis
BACKGROUND: Identification of myositis-specific autoantibodies (MSA) for dermatomyositis (DM) could allow the characterization of an antibody-associated clinical phenotype. OBJECTIVE: We sought to define the clinical phenotype of DM and the risk of cancer, interstitial lung disease (ILD) and calcinosis based on MSA. METHODS: A 3.5-year multicenter prospective study of adult DM patients was conducted to determine the clinical phenotype associated with MSA and the presence of cancer, ILD and calcinosis...
December 13, 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/29236933/intramural-duodenal-hematoma-secondary-to-pancreatitis-case-report-and-review-of-the-literature
#16
João Henrique Botto de Oliveira, Raiza Samenica Esper, Rodrigo Campos Ocariz, Flora Specian Sartori, Lucas Marcelo Dias Freire, Elinton Adami Chaim, Francisco Callejas-Neto, Everton Cazzo
CONTEXT: Spontaneous intramural duodenal hematoma is uncommon and is usually associated with coagulopathy, anticoagulant therapy and endoscopic procedures. The aim here was to describe a case of intramural duodenal hematoma caused by chronic exacerbation of pancreatitis. CASE REPORT: A 46-year-old male with chronic alcoholic pancreatitis was admitted to hospital due to abdominal pain, melena and low hemoglobin. An intramural duodenal hematoma with active bleeding was detected and selective angioembolization was warranted...
December 7, 2017: São Paulo Medical Journal, Revista Paulista de Medicina
https://www.readbyqxmd.com/read/29236494/theoretical-study-on-elementary-reaction-steps-in-thermal-decomposition-processes-of-syringol-type-monolignol-compounds
#17
Yuki Furutani, Yuki Dohara, Shinji Kudo, Jun-Ichiro Hayashi, Koyo Norinaga
This paper theoretically investigated a large number of reaction pathways and kinetics to describe the vapor-phase pyrolytic behavior of several syringol-type monolignol compounds that are derived from the primary pyrolysis of lignin: 1-(4-hydroxy-3,5-dimethoxyphenyl)prop-2-en-1-one (HDPP), sinapyl alcohol, 3-hydroxy-1-(4-hydroxy-3,5-dimethoxyphenyl)propan-1-one (HHDPP), 1-(4-hydroxy-3,5-dimethoxyphenyl)propane-1,3-diol (HDPPD), and syringol. The possible pyrolytic pathways involving unimolecular decomposition, addition, and abstraction reactions were investigated by comparing the energy barriers calculated at the B3LYP/6-311++G(d,p) level...
December 13, 2017: Journal of Physical Chemistry. A
https://www.readbyqxmd.com/read/29235730/smart-design-of-a-bulk-capped-supramolecular-segment-for-the-assembly-into-organic-interdigital-lipid-bilayer-like-ilb-nanosheets
#18
Yin-Xiang Li, Sha-Sha Wang, Yang Yu, He Zhang, Wu-You Wang, Ru-Qian Yang, Ling-Hai Xie, Feng Liu, Zong-Qiong Lin, Nai-En Shi, Li-Tao Sun, Wei Huang
Rational molecular design for the organic nanocrystal morphology still remains a challenge due to the structural diversity and complicated weak intermolecular interactions. In this work, a typical attractor-repulsor molecule N,N-diphenyl-4-(9-phenyl-fluoren-9-yl) phenylamine (TPA-PF) is designed to explore a general assembly strategy for 2D nanocrystals. Via an interdigital lipid bilayer-like (ILB) molecular packing mode, large-sized lamellar 2D nanosheets are obtained with a length:width:thickness ratio as ≈2500:1000:1...
December 13, 2017: Small
https://www.readbyqxmd.com/read/29235570/targeting-negative-regulation-of-p53-by-mdm2-and-wip1-as-a-therapeutic-strategy-in-cutaneous-melanoma
#19
Chiao-En Wu, Arman Esfandiari, Yi-Hsuan Ho, Nan Wang, Ahmed Khairallah Mahdi, Erhan Aptullahoglu, Penny Lovat, John Lunec
BACKGROUND: Cutaneous melanoma is the most serious skin malignancy and new therapeutic strategies are needed for advanced melanoma. TP53 mutations are rare in cutaneous melanoma and hence activation of wild-type p53 is a potential therapeutic strategy in cutaneous melanoma. Here, we investigated the WIP1 inhibitor, GSK2830371, and MDM2-p53 binding antagonists (nutlin-3, RG7388 and HDM201) alone and in combination treatment in cutaneous melanoma cell lines and explored the mechanistic basis of these responses in relation to the genotype and induced gene expression profile of the cells...
December 12, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/29235208/optical-coherence-tomography-for-assessment-of-epithelialization-in-a-human-ex-vivo-wound-model
#20
George D Glinos, Sebastian H Verne, Adam S Aldahan, Liang Liang, Keyvan Nouri, Sharon Elliot, Marilyn Glassberg, Delia Cabrera DeBuc, Tulay Koru-Sengul, Marjana Tomic-Canic, Irena Pastar
The ex vivo human skin wound model is a widely accepted model to study wound epithelialization. Due to a lack of animal models that fully replicate human conditions, the ex vivo model is a valuable tool to study mechanisms of wound re-epithelialization, as well as for pre-clinical testing of novel therapeutics. The current standard for assessment of wound healing in this model is histomorphometric analysis, which is labor intensive, time consuming, and requires multiple biological and technical replicates in addition to assessment of different time points...
December 13, 2017: Wound Repair and Regeneration
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