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https://www.readbyqxmd.com/read/28814071/feasibility-of-charcoal-tattooing-of-cytology-proven-metastatic-axillary-lymph-node-at-diagnosis-and-sentinel-lymph-node-biopsy-after-neoadjuvant-chemotherapy-in-breast-cancer-patients
#1
Seho Park, Ja Seung Koo, Gun Min Kim, Joohyuk Sohn, Seung Il Kim, Young Up Cho, Byeong-Woo Park, Vivian Youngjean Park, Jung Hyun Yoon, Hee Jung Moon, Min Jung Kim, Eun-Kyung Kim
Purpose: Sentinel lymph node biopsy (SLNB) can be performed when node-positive disease is converted to node-negative status after neoadjuvant chemotherapy (NCT). Tattooing nodes might improve accuracy but supportive data are limited. This study aimed to investigate the feasibility of charcoal tattooing metastatic axillary lymph node (ALN) at presentation followed by SLNB after NCT in breast cancers. Materials and Methods: Twenty patients with cytology-proven node metastases prospectively underwent charcoal tattooing at diagnosis...
August 17, 2017: Cancer Research and Treatment: Official Journal of Korean Cancer Association
https://www.readbyqxmd.com/read/28813744/alkaptonuria-a-case-report-with-diagnostic-challenge
#2
Vasantha L Gali, Amy M Kerkvliet, Jacob M Kusmak, Jana K Elwood
Alkaptonuria is a rare autosomal recessive metabolic disorder caused by deficiency of homogentisic acid (HGA) oxidase, the only enzyme capable of catabolizing HGA. Deficiency of this enzyme leads to excess HGA which deposits in the connective tissue. We present a case of a 64-year-old woman who was referred to the dermatology clinic for a full body mole check and skin cancer screening. Clinically she had blue/gray pigmentation of the external ear and sclera. Also she had a domed papule on the left cheek with punctate gray pigmentation which was biopsied...
August 2017: South Dakota Medicine: the Journal of the South Dakota State Medical Association
https://www.readbyqxmd.com/read/28813714/effects-of-riboflavin-and-ultraviolet-illumination-on-the-biomechanical-properties-of-conjunctiva
#3
Harrison Man Hin Chan, Bonnie Nga Kwan Choy, Jimmy Shiu Ming Lai
PURPOSE: Our experiment evaluated the biomechanical effects of riboflavin and ultraviolet A illumination, in terms of covalent bonding, permeability, and indentation rupture force, on excised cattle conjunctiva. MATERIALS AND METHODS: Cattle conjunctiva was extracted and divided into the treatment group, which was soaked in riboflavin, followed by ultraviolet light illumination, and the control group. Samples were subsequently analysed on a Fourier transform infrared spectrum test to identify the presence of amide bonds, a permeability test to assess the diffusion of methylene blue across conjunctiva, and an indentation rupture force test...
August 17, 2017: Ophthalmic Research
https://www.readbyqxmd.com/read/28813710/is-endoscopic-vasectomy-just-a-dream-an-ex-vivo-study-on-feasibility-and-reliability-of-endoluminal-occlusion-of-porcine-vas-deferens
#4
Daniel Schlager, Moritz Maas, Simon Hein, Fabian Adams, Martin Schoenthaler, Bjoern Spittau, Ulrich Wetterauer, Arkadiusz Miernik
INTRODUCTION AND AIM: Surgical vasectomy remains the gold standard for fertility control in men. Endoluminal occlusion of the seminal ducts, thus avoiding an external incision, may become an appealing alternative to this approach. As our group has shown, nontraumatic endoscopic inspection of the seminal ducts is feasible in the human cadaver. We investigated the feasibility and reliability of occlusion using several commercially available medical sealing agents in the porcine vas deferens (VD)...
August 17, 2017: Urologia Internationalis
https://www.readbyqxmd.com/read/28813122/morphological-alterations-in-the-jejunal-mucosa-of-aged-rats-and-the-possible-protective-role-of-green-tea
#5
Zeinab Abel-Rehim Hassan, Agata Zauszkiewicz-Pawlak, Shaimaa A Abdelrahman, Sami Algaidi, Maha Desouky, Sally M Shalaby
INTRODUCTION: Gastrointestinal disorders become more prevalent with ageing. This study is aimed to describe morphological changes that occur in the jejunal mucosa of male albino rats as a result of ageing and the protective effect of green tea supplements. MATERIAL AND METHODS: The experiment was performed on sixty rats: thirty young-adult (6-month old, body mass 200-220 g) and thirty old (24-month-old, body mass 220-260 g) animals. Each group was further divided into two subgroups (n = 15 each): control rats and green tea-treated rats that received 1...
August 16, 2017: Folia Histochemica et Cytobiologica
https://www.readbyqxmd.com/read/28813104/poly-methylene-blue-modified-electrode-for-indirect-electrochemical-sensing-of-oh-radicals-and-radical-scavengers
#6
Walter A Braun, Bruna C Horn, Lucélia Hoehne, Simone Stülp, Marcelo B DA Rosa, Maurício Hilgemann
A new modified electrode for indirect sensing of OH· and radical scavengers was described. The electrochemical polymerization of methylene blue in aqueous solutions and the properties of the resulting films on a glassy carbon electrode were carried out using cyclic voltammetry. A surface coverage of 1.11 × 109mol cm2 was obtained, revealing a complete surface coverage of the polymeric film on the electrode surface. OH· was able to destroy the poly(methylene blue) film by exposure to a Fenton solution. The loss of the electrochemical signal of the residual polymeric film attached to the electrode surface was related to the extent of its dissolution...
August 14, 2017: Anais da Academia Brasileira de Ciências
https://www.readbyqxmd.com/read/28813016/a-novel-high-mannose-specific-lectin-from-the-green-alga-halimeda-renschii-exhibits-a-potent-anti-influenza-virus-activity-through-high-affinity-binding-to-the-viral-hemagglutinin
#7
Jinmin Mu, Makoto Hirayama, Yuichiro Sato, Kinjiro Morimoto, Kanji Hori
We have isolated a novel lectin, named HRL40 from the green alga Halimeda renschii. In hemagglutination-inhibition test and oligosaccharide-binding experiment with 29 pyridylaminated oligosaccharides, HRL40 exhibited a strict binding specificity for high-mannose N-glycans having an exposed (α1-3) mannose residue in the D2 arm of branched mannosides, and did not have an affinity for monosaccharides and other oligosaccharides examined, including complex N-glycans, an N-glycan core pentasaccharide, and oligosaccharides from glycolipids...
August 16, 2017: Marine Drugs
https://www.readbyqxmd.com/read/28812899/synthesis-and-characterization-of-a-boron-nitrogen-boron-zigzag-edged-benzo-fg-tetracene-motif
#8
Michael Fingerle, Cäcilia Maichle-Mössmer, Simon Schundelmeier, Bernd Speiser, Holger F Bettinger
The boron-nitrogen-boron (BNB) zigzag edged benzo[fg]tetracene is accessible from 4-butyl-2,6-diphenylaniline in four steps in good yields. The two mesityl groups stabilize the boron centers toward nucleophilic attack and result in two enantiomeric forms in the solid state. The title compound has a large optical gap, shows blue fluorescence, and is quite resistant toward oxidation and reduction.
August 16, 2017: Organic Letters
https://www.readbyqxmd.com/read/28812613/making-sure-the-blue-economy-is-green
#9
Jay S Golden, John Virdin, Douglas Nowacek, Patrick Halpin, Lori Bennear, Pawan G Patil
No abstract text is available yet for this article.
January 24, 2017: Nature ecology & evolution
https://www.readbyqxmd.com/read/28812341/efficient-sky-blue-perovskite-light-emitting-devices-based-on-ethylammonium-bromide-induced-layered-perovskites
#10
Qi Wang, Jie Ren, Xuefeng Peng, Xiaxia Ji, Xiaohui Yang
Low-dimensional organometallic halide perovskites are actively studied for light emitting applications due to their properties such as enlarged exciton binding energy and tunable band-gap. Introduction of large-group ammonium halides not only serves as a convenient and versatile method to obtain layered perovskites, but also allows the exploitation of energy funneling process to achieve high efficiency light emission. Herein, we investigate the influence of the ethylammonium bromide (EABr) addition on the morphology, structure and optical properties of the resultant perovskite materials and report that the phase transition from bulk to layered perovskite occurs in presence of a large amount of EABr...
August 16, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28811844/lsd1-dual-function-in-mediating-epigenetic-corruption-of-the-vitamin-d-signaling-in-prostate-cancer
#11
Sebastiano Battaglia, Ellen Karasik, Bryan Gillard, Jennifer Williams, Trisha Winchester, Michael T Moser, Dominic J Smiraglia, Barbara A Foster
BACKGROUND: Lysine-specific demethylase 1A (LSD1) is a key regulator of the androgen (AR) and estrogen receptors (ER), and LSD1 levels correlate with tumor aggressiveness. Here, we demonstrate that LSD1 regulates vitamin D receptor (VDR) activity and is a mediator of 1,25(OH)2-D3 (vitamin D) action in prostate cancer (PCa). METHODS: Athymic nude mice were xenografted with CWR22 cells and monitored weekly after testosterone pellet removal. Expression of LSD1 and VDR (IHC) were correlated with tumor growth using log-rank test...
2017: Clinical Epigenetics
https://www.readbyqxmd.com/read/28811657/colorimetric-fingerprints-of-gold-nanorods-for-discriminating-catecholamine-neurotransmitters-in-urine-samples
#12
Somayeh Jafarinejad, Mahmoud Ghazi-Khansari, Forough Ghasemi, Pezhman Sasanpour, M Reza Hormozi-Nezhad
Catecholamine neurotransmitters, generally including dopamine (DA), epinephrine (EP) and norepinephrine (NE) are known as substantial indicators of various neurological diseases. Simultaneous detection of these compounds and their metabolites is highly recommended in early clinical diagnosis. To this aim, in the present contribution, a high performance colorimetric sensor array has been proposed for the detection and discrimination of catecholamines based on their reducing ability to deposit silver on the surface of gold nanorods (AuNRs)...
August 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28811125/pharmacokinetics-and-pharmacodynamics-of-thiopurines-in-an-in-vitro-model-of-human-hepatocytes-insights-from-an-innovative-mass-spectrometry-assay
#13
Marco Pelin, Elena Genova, Laura Fusco, Monzer Marisat, Ute Hofmann, Diego Favretto, Marianna Lucafò, Andrea Taddio, Stefano Martelossi, Alessandro Ventura, Gabriele Stocco, Matthias Schwab, Giuliana Decorti
AIM: To apply an innovative LC-MS/MS method to quantify thiopurine metabolites in human hepatocytes and to associate them to cytotoxicity. METHODS: Immortalized human hepatocytes (IHH cells) were treated for 48 and 96 h, with 1.4 × 10(-4) M azathioprine and 1.1 × 10(-3) M mercaptopurine, concentrations corresponding to the IC50 values calculated after 96 h exposure in previous cytotoxicity analysis. After treatments, cells were collected for LC-MS/MS analysis to quantify 11 thiopurine metabolites with different level of phosphorylation and viable cells were counted by Trypan blue exclusion assay to determine thiopurines in vitro effect on cell growth and survival...
August 12, 2017: Chemico-biological Interactions
https://www.readbyqxmd.com/read/28811108/methylene-blue-guided-debridement-as-an-intraoperative-adjunct-for-the-surgical-treatment-of-periprosthetic-joint-infection
#14
Jeremy D Shaw, Steve Miller, Anna Plourde, Daniel L Shaw, Rosanna Wustrack, Erik N Hansen
BACKGROUND: Current methods to identify infected tissue in periprosthetic joint infection (PJI) are inadequate. The purpose of this study was (1) to assess methylene blue-guided surgical debridement as a novel technique in PJI using quantitative microbiology and (2) to evaluate clinical success based on eradication of infection and infection-free survival. METHODS: Sixteen total knee arthroplasty patients meeting Musculoskeletal Infection Society criteria for PJI undergoing the first stage of 2-stage exchange arthroplasty were included in this prospective study...
July 21, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28810961/resuscitation-of-hypotensive-traumatic-brain-injured-animals-with-spray-dried-plasma-does-not-adversely-alter-physiology-and-improves-blood-brain-barrier-function
#15
Steven McDaniel, Stephanie Golla, Anthony N Moore, Joe DaCorta, Arthur Bode, Shibani Pati, Pramod K Dash, Jing Zhao
INTRODUCTION: According to the Defense and Veterans Brain Injury Center and the Armed Forces Health Surveillance Center, the number of soldiers who have sustained a traumatic brain injury (TBI) has risen dramatically over the past decade. Studies have shown that brain damage can be exacerbated if blood loss occurs (often occurring in polytrauma). As blood supply is critical for brain function and survival, TBI patients must be properly resuscitated to maintain blood volume, blood pressure, and cerebral perfusion...
July 2017: Military Medicine
https://www.readbyqxmd.com/read/28810922/pleural-epithelioid-angiosarcoma-with-lymphatic-differentiation-arisen-after-radiometabolic-therapy-for-thyroid-carcinoma-immunohistochemical-findings-and-review-of-the-literature
#16
REVIEW
Daniela Cabibi, Giulia Pipitone, Rossana Porcasi, Sabrina Ingrao, Ignazio Benza, Calogero Porrello, Massimo Cajozzo, Antonino Giulio Giannone
BACKGROUND: Pleural angiosarcoma is a rare tumor that causes diffuse pleural thickening and effusion, mimicking mesothelioma. Immunohistochemistry is needed to highlight endothelial differentiation. We describe the first case of pleural angiosarcoma with lymphatic differentiation following radiometabolic therapy for thyroid carcinoma. CASE PRESENTATION: A 50-year-old man showed diffuse pleural thickening and effusion. Nine years earlier, he underwent thyroidectomy and radiometabolic therapy for thyroid carcinoma with lymph node metastases...
August 15, 2017: Diagnostic Pathology
https://www.readbyqxmd.com/read/28810691/improvement-of-implantation-potential-in-mouse-blastocysts-derived-from-ivf-by-combined-treatment-with-prolactin-epidermal-growth-factor-and-4-hydroxyestradiol
#17
Miki Takeuchi, Misato Seki, Etsuko Furukawa, Akihito Takahashi, Kyosuke Saito, Mitsuru Kobayashi, Kenji Ezoe, Emiko Fukui, Midori Yoshizawa, Hiromichi Matsumoto
STUDY QUESTION: Can supplementation of medium with prolactin (PRL), epidermal growth factor (EGF) and 4-hydroxyestradiol (4-OH-E2) prior to embryo transfer improve implantation potential in mouse blastocysts derived from IVF? SUMMARY ANSWER: Combined treatment with PRL, EGF and 4-OH-E2 improves mouse blastocyst implantation rates, while alone, each factor is ineffective. WHAT IS KNOWN ALREADY: Blastocyst dormancy during delayed implantation caused by ovariectomy is maintained by continued progesterone treatment in mice, and estrogen injection rapidly activates blastocysts to implantation-induced status in vivo...
August 1, 2017: Molecular Human Reproduction
https://www.readbyqxmd.com/read/28810657/anti-exudation-effects-of-sodium-ferulate-and-oxymatrine-combination-via-modulation-of-aquaporin-1
#18
Songmei Sun, Xing Du, Mengxin Xu, Meijuan Liu, Zhifeng Liu
The present study aimed to investigate the anti-exudative effects of sodium ferulate combined with oxymatrine in a mouse model of acetic acid-induced peritonitis. Furthermore, the underlying mechanisms were explored by determining the effects of these drugs on the volume and aquaporin 1 (AQP1) expression in vascular endothelial cells on omentum majus and human umbilical vein endothelial cells (HUVEC). Treatment with sodium ferulate combined with oxymatrine was shown to significantly inhibit acetic acid-induced vascular permeability in the peritonitis model mice and furthermore to significantly decrease the optical density of Evans blue, the leukocyte number and the levels of interleukin-6, C-reactive protein and interferon-γ in peritoneal lavage fluid...
August 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28810547/salvianolic-acid-a-protects-against-myocardial-ischemia-reperfusion-injury-by-reducing-platelet-activation-and-inflammation
#19
Xiaoling Yuan, Yijia Xiang, Ning Zhu, Xuyong Zhao, Shiyong Ye, Peng Zhong, Chunlai Zeng
The aim of the present study was to investigate the protective effect of salvianolic acid A (SAA) on myocardial ischemia/reperfusion injury in rats. SAA (10 mg/kg) or Tirofiban (60 µg/kg) was administered to rats by jugular vein injection 10 min before the initiation of reperfusion. After 3 h of reperfusion, platelet aggregation was measured using an aggregometer and levels of nitric oxide (NO) were detected using an ultraviolet spectrophotometer. Serum levels of cardiac troponin T (cTnT), creatine kinase isoenzyme MB (CK-MB), p-selectin, interleukin-1β (IL-1β) and tumor necrosis factor-α (TNF-α) were also measured 3 and 24 h after reperfusion...
August 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28810234/electrochemical-aptamer-based-nanosensor-fabricated-on-single-au-nanowire-electrodes-for-adenosine-triphosphate-assay
#20
Dongmei Wang, Xiaoqing Xiao, Shen Xu, Yong Liu, Yongxin Li
In this work, single Au nanowire electrodes (AuNWEs) were fabricated by laser-assisted pulling/hydrofluoric acid (HF) etching process, which then were characterized by transmission electron microscopy (TEM), electrochemical method and finite-element simulation. The as-prepared single AuNWEs were used to construct electrochemical aptamer-based nanosensors (E-AB nanosensors) based on the formation of Au-S bond that duplex DNA tagged with methylene blue (MB) was modified on the surface of electrode. In the presence of adenosine triphosphate (ATP), the MB-labeled aptamer dissociated from the duplex DNA due to the strong specific affinity between aptamer and target, which lead to the reduction of MB electrochemical signals...
August 9, 2017: Biosensors & Bioelectronics
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