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https://www.readbyqxmd.com/read/28445951/pd-l1-expression-in-perihilar-and-intrahepatic-cholangiocarcinoma
#1
Jacqueline Fontugne, Jérémy Augustin, Anaïs Pujals, Philippe Compagnon, Benoit Rousseau, Alain Luciani, Christophe Tournigand, Daniel Cherqui, Daniel Azoulay, Jean-Michel Pawlotsky, Julien Calderaro
Cholangiocarcinoma is an aggressive biliary neoplasm lacking effective therapeutic agents. Immunotherapies targeting the PD-L1/PD-1 immune checkpoint have shown encouraging results in solid and hematologic cancers in clinical trials. Response to these immunomodulators is correlated with PD-L1 expression. Our goal was to characterize PD-L1 expression in intra-hepatic (iCCA) and perihilar (pCCA) cholangiocarcinomas, and to correlate our results with clinicopathological features, density of tumor-infiltrating lymphocytes (TILs) and PD-1 expression...
April 11, 2017: Oncotarget
https://www.readbyqxmd.com/read/28445943/a-molecular-inversion-probe-based-next-generation-sequencing-panel-to-detect-germline-mutations-in-chinese-early-onset-colorectal-cancer-patients
#2
Junxiao Zhang, Xiaoyan Wang, Richarda M de Voer, Jayne Y Hehir-Kwa, Eveline J Kamping, Robbert D A Weren, Marcel Nelen, Alexander Hoischen, Marjolijn J L Ligtenberg, Nicoline Hoogerbrugge, Xiangling Yang, Zihuan Yang, Xinjuan Fan, Lei Wang, Huanliang Liu, Jianping Wang, Roland P Kuiper, Ad Geurts van Kessel
The currently known Mendelian colorectal cancer (CRC) predisposition syndromes account for ~5-10% of all CRC cases, and are caused by inherited germline mutations in single CRC predisposing genes. Using molecular inversion probes (MIPs), we designed a targeted next-generation sequencing panel to identify mutations in seven CRC predisposing genes: APC, MLH1, MSH2, MSH6, PMS2, MUTYH and NTHL1. From a consecutive series of 2,371 Chinese CRC patients, 140 familial and non-familial cases were selected that were diagnosed with CRC at or below the age of 35 years...
April 11, 2017: Oncotarget
https://www.readbyqxmd.com/read/28445905/prenatal-diagnosis-of-galen-vein-aneurysm-using-ultrasonography-and-magnetic-resonance-imaging-and-perinatal-and-long-term-neurological-outcomes-a-case-series
#3
Pedro Pires, Larisse de Brito Aurélio Martins, Norma Maria Tenório Brito Pires, Heron Werner, Adilson Cunha Ferreira, Edward Araujo Júnior
Objective To describe the prenatal diagnosis of Galen vein aneurysm (GVA) based on ultrasonography and magnetic resonance imaging (MRI) in a series of cases, as well as its postnatal outcomes and follow-up until 4 years of age. Methods A retrospective longitudinal study was performed, analyzing a database comprising seven cases of prenatal diagnosis of GVA at two Brazilian institutions from February of 2000 to May of 2012. The following data were evaluated: gestational age at diagnosis, GVA dimensions on ultrasonography, associated fetal changes, findings on fetal echocardiography, gestational age at delivery, type of delivery, birth weight, Apgar score at the 1st and 5th minutes, neonatal outcomes, and survival with follow-up until 4 years of age...
April 26, 2017: Revista Brasileira de Ginecologia e Obstetrícia
https://www.readbyqxmd.com/read/28445876/impact-of-the-reclassification-of-the-non-invasive-follicular-variant-of-papillary-carcinoma-as-benign-on-the-malignancy-risk-of-the-bethesda-system-for-reporting-thyroid-cytopathology-a-meta-analysis-study
#4
Lester J Layfield, Zubair W Baloch, Magda Esebua, Rohini Kannuswamy, Robert L Schmidt
OBJECTIVES: The Bethesda System for Reporting Thyroid Cytopathology (TBSRTC) established diagnostic categories for cytologic specimens of the thyroid. Each category was associated with an estimated risk of malignancy. Recently, the non-invasive follicular variant of papillary thyroid carcinoma has been reclassified as benign. This reclassification may alter the malignancy risk of TBSRTC diagnostic categories. STUDY DESIGN: A literature search was made for all studies investigating the effect of reclassification of some non-invasive follicular variant papillary thyroid carcinomas as benign on the malignancy risk associated with TBSRTC categories...
April 27, 2017: Acta Cytologica
https://www.readbyqxmd.com/read/28445869/silicone-oil-related-visual-loss
#5
Hamouda Hamdy Ghoraba, Adel Galal Zaky, Mohamed Amin Heikal, Emad Eldin Mohamed Elgemai, Haithem Mamoun Abd Al Fatah
BACKGROUND: Silicone oil (SO) is used as an intravitreal tamponade agent in vitreoretinal surgery for rhegmatogenous retinal detachment (RRD) complicated by proliferative vitreoretinopathy or with large, multiple retinal tears. Usually, SO is left in the eye for at least 3 months. Although its use can lead to well-known complications, intraocular SO is generally well tolerated. Some studies have reported unexpected central vision loss after SO use or removal. OBJECTIVE: To investigate and analyze the reason for visual loss after the use or removal of intraocular SO in patients who underwent vitrectomy surgeries for RRD...
April 27, 2017: Ophthalmologica. Journal International D'ophtalmologie
https://www.readbyqxmd.com/read/28445837/the-development-and-validation-of-huaxi-emotional-distress-index-hei-a-chinese-questionnaire-for-screening-depression-and-anxiety-in-non-psychiatric-clinical-settings
#6
Jian Wang, Wan-Jun Guo, Lan Zhang, Wei Deng, Hui-Yao Wang, Jian-Ying Yu, Shan-Xia Luo, Ming-Jin Huang, Zai-Quan Dong, Da-Jiang Li, Jin-Ping Song, Yu Jiang, Nan-Sheng Cheng, Xie-He Liu, Tao Li
BACKGROUND: Depression and anxiety among general hospital patients are common and under-recognized in China. This study aimed toward developing a short questionnaire for screening depression and anxiety in non-psychiatric clinical settings, and to test its reliability and validity. METHODS: The item pool which included 35 questions about emotional distress was drafted through a comprehensive literature review. An expert panel review and the first clinical test with 288 general hospital patients were conducted for the primary item selection...
April 6, 2017: Comprehensive Psychiatry
https://www.readbyqxmd.com/read/28445786/metallo-%C3%AE-lactamase-inhibitors-by-bioisosteric-replacement-preparation-activity-and-binding
#7
Susann Skagseth, Sundus Akhter, Marianne H Paulsen, Zeeshan Muhammad, Silje Lauksund, Ørjan Samuelsen, Hanna-Kirsti S Leiros, Annette Bayer
Bacterial resistance is compromising the use of β-lactam antibiotics including carbapenems. The main resistance mechanism against β-lactams is hydrolysis of the β-lactam ring mediated by serine- or metallo-β-lactamases (MBLs). Although several inhibitors of MBLs have been reported, none has been developed into a clinically useful inhibitor. Mercaptocarboxylic acids are among the most prominent scaffolds reported as MBL inhibitors. In this study, the carboxylate group of mercaptocarboxylic acids was replaced with bioisosteric groups like phosphonate esters, phosphonic acids and NH-tetrazoles...
April 14, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28445777/five-year-follow-up-after-laparoscopic-large-nerve-resection-for-deep-infiltrating-sciatic-nerve-endometriosis
#8
Marc Possover
STUDY OBJECTIVE: To report neurologic follow-up of patients after laparoscopic large resection of deep infiltrating endometriosis of the sciatic nerve. DESIGN: Prospective clinical case series (Canadian Task Force classification I). SETTING: Tertiary referral unit specializing in advanced gynecologic surgery and neuropelveology. PATIENTS: All data for patients who underwent laparoscopic surgery for endometriosis of the sciatic nerve between 2004 and 2016 (N = 259) were documented prospectively...
April 23, 2017: Journal of Minimally Invasive Gynecology
https://www.readbyqxmd.com/read/28445649/high-serum-stability-of-collagen-hybridizing-peptides-and-their-fluorophore-conjugates
#9
Lucas L Bennink, Daniel J Smith, Catherine A Foss, Martin G Pomper, Yang Li, S Michael Yu
Collagen hybridizing peptides (CHPs) have a great potential for use in targeted drug delivery, diagnostics, and regenerative medicine due to their ability to specifically bind to denatured collagens associated with many pathologic conditions. Since peptides generally suffer from poor enzymatic stability resulting in rapid degradation and elimination in vivo, CHP's serum stability is a critical parameter that may dictate its pharmacokinetic behavior. Here, we report the serum stability of a series of monomeric CHP derivatives and establish how peptide length, amino acid composition, terminal modification, and linker chemistry influence their availability in serum...
April 26, 2017: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/28445635/synthesis-and-enhanced-corrosion-protection-performance-of-reduced-graphene-oxide-nanosheet-znal-layered-double-hydroxides-composite-film-by-hydrothermal-continuous-flow-method
#10
Xiaohu Luo, Song Yuan, Xinyu Pan, Caixia Zhang, Shuo Du, Yali Liu
Effective prevention of the water, oxygen, and chloride ions held in the hydrotalcite interlayer from diffusing through the layered double hydroxides ( LDH ) layer is crucial importance for its further practical application in the corrosion protection. In this study, a hybrid reduced graphene oxide ( RGO ) nanosheet /Zn2+/Al3+ layered double hydroxides ( RGO/ZnAl-LDH ) composite film with an excellent corrosion protection property on the 6N01 aluminum alloy surface was synthesized by a newly and facile hydrothermal continuous flow method,which can enable direct growth on the substrate...
April 26, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28445578/utility-of-a-noninvasive-2-gene-molecular-assay-for-cutaneous-melanoma-and-effect-on-the-decision-to-biopsy
#11
Laura K Ferris, Burkhard Jansen, Jonhan Ho, Klaus J Busam, Kenneth Gross, Doyle D Hansen, John P Alsobrook, Zuxu Yao, Gary L Peck, Pedram Gerami
Importance: Expression of long intergenic non-protein coding RNA 518 (LINC00518) and preferentially expressed antigen in melanoma (PRAME) genes, obtained via noninvasive adhesive patch biopsy, is a sensitive and specific method for detection of cutaneous melanoma. However, the utility of this test in biopsy decisions made by dermatologists has not been evaluated. Objective: To determine the utility of the pigmented lesion assay (PLA) for LINC00518/PRAME expression in decisions to biopsy a series of pigmented skin lesions...
April 26, 2017: JAMA Dermatology
https://www.readbyqxmd.com/read/28445563/outbreak-of-occupational-dermatitis-associated-with-pyemotes-ventricosus
#12
Martyna Tomczyk-Socha, Katarzyna Jedrzejewska-Jurga, Joanna Limburska, Jaroslaw Tomczyk
Importance: Although Pyemotes spp have been known to cause dermatitis, recent reports are rare. During the past 30 years, only 3 outbreaks of dermatitis caused by Pyemotes ventricosus have been reported. Objective: To analyze the causative agent of skin changes in employees of a company that produced herbal medicines. Design, Setting, and Participants: This case series includes 18 patients (8 men, 10 women; mean age, 44 years) who contracted unusual dermatitis after an occupational exposure in July and August of 2012 while working for a company that produced herbal medicines...
April 26, 2017: JAMA Dermatology
https://www.readbyqxmd.com/read/28445548/assessing-the-severity-of-sleep-apnea-syndrome-based-on-ballistocardiogram
#13
Zhu Wang, Xingshe Zhou, Weichao Zhao, Fan Liu, Hongbo Ni, Zhiwen Yu
BACKGROUND: Sleep Apnea Syndrome (SAS) is a common sleep-related breathing disorder, which affects about 4-7% males and 2-4% females all around the world. Different approaches have been adopted to diagnose SAS and measure its severity, including the gold standard Polysomnography (PSG) in sleep study field as well as several alternative techniques such as single-channel ECG, pulse oximeter and so on. However, many shortcomings still limit their generalization in home environment. In this study, we aim to propose an efficient approach to automatically assess the severity of sleep apnea syndrome based on the ballistocardiogram (BCG) signal, which is non-intrusive and suitable for in home environment...
2017: PloS One
https://www.readbyqxmd.com/read/28445544/pressure-flaking-to-serrate-bifacial-points-for-the-hunt-during-the-mis5-at-sibudu-cave-south-africa
#14
Veerle Rots, Carol Lentfer, Viola C Schmid, Guillaume Porraz, Nicholas J Conard
Projectile technology is considered to appear early in the southern African Middle Stone Age (MSA) and the rich and high resolution MSA sequence of Sibudu Cave in KwaZulu-Natal has provided many new insights about the use and hafting of various projectile forms. We present the results of a functional and technological analysis on a series of unpublished serrated bifacial points recently recovered from the basal deposits of Sibudu Cave. These serrated tools, which only find equivalents in the neighbouring site of Umhlatuzana, precede the Still Bay techno-complex and are older than 77 ka BP...
2017: PloS One
https://www.readbyqxmd.com/read/28445514/the-complexity-underlying-invasiveness-precludes-the-identification-of-invasive-traits-a-comparative-study-of-invasive-and-non-invasive-heterocarpic-atriplex-congeners
#15
Jana Doudová, Jan Douda, Bohumil Mandák
Heterocarpy enables species to effectively spread under unfavourable conditions by producing two or more types of fruit differing in ecological characteristics. Although it is frequent in annuals occupying disturbed habitats that are vulnerable to invasion, there is still a lack of congeneric studies addressing the importance of heterocarpy for species invasion success. We compared two pairs of heterocarpic Atriplex species, each of them comprising one invasive and one non-invasive non-native congener. In two common garden experiments, we (i) simulated the influence of different levels of nutrients and population density on plants grown from different types of fruits and examined several traits that are generally positively associated with invasion success, and (ii) grew plants in a replacement series experiment to evaluate resource partitioning between them and to compare their competitive ability...
2017: PloS One
https://www.readbyqxmd.com/read/28445507/various-mutations-compensate-for-a-deleterious-lacz%C3%AE-insert-in-the-replication-enhancer-of-m13-bacteriophage
#16
Emily M Zygiel, Karen A Noren, Marta A Adamkiewicz, Richard J Aprile, Heather K Bowditch, Christine L Carroll, Maria Abigail S Cerezo, Adelle M Dagher, Courtney R Hebert, Lauren E Hebert, Gloria M Mahame, Stephanie C Milne, Kelly M Silvestri, Sara E Sutherland, Alexandria M Sylvia, Caitlyn N Taveira, David J VanValkenburgh, Christopher J Noren, Marilena Fitzsimons Hall
M13 and other members of the Ff class of filamentous bacteriophages have been extensively employed in myriad applications. The Ph.D. series of phage-displayed peptide libraries were constructed from the M13-based vector M13KE. As a direct descendent of M13mp19, M13KE contains the lacZα insert in the intergenic region between genes IV and II, where it interrupts the replication enhancer of the (+) strand origin. Phage carrying this 816-nucleotide insert are viable, but propagate in E. coli at a reduced rate compared to wild-type M13 phage, presumably due to a replication defect caused by the insert...
2017: PloS One
https://www.readbyqxmd.com/read/28445410/c-c-coupling-reactions-between-benzofurazan-derivatives-and-1-3-diaminobenzenes
#17
Gabriele Micheletti, Silvia Bordoni, Elena Chugunova, Carla Boga
Aromatic substitution reactions between 1,3-diaminobenzene and chloronitrobenzofurazan derivatives have never been reported so far. The aim of the current study was to synthesize novel electron-donor and -acceptor architectures of interest in applied fields and to provide new insights on the nucleophilic behavior of 1,3-diaminobenzenes. The reaction of 1,3-dipiperidinyl-, 1,3-dimorpholinyl-, 1,3-dipyrrolidinyl-, or 1,3-dimethylamino-benzene with 7-chloro-4,6-dinitrobenzofuroxan or with a series of chloro-nitrobenzofurazans has been carried out in mild conditions...
April 26, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28445402/synthesis-of-gibberellic-acid-derivatives-and-their-effects-on-plant-growth
#18
Hao Tian, Yiren Xu, Shaojin Liu, Dingsha Jin, Jianjun Zhang, Liusheng Duan, Weiming Tan
A series of novel C-3-OH substituted gibberellin derivatives bearing an amide group were designed and synthesized from the natural product gibberellic acid (GA₃). Their activities on the plant growth regulation of rice and Arabidopsis were evaluated in vivo. Among these compounds, 10d and 10f exhibited appreciable inhibitory activities on rice (48.6% at 100 μmol/L) and Arabidopsis (41.4% at 100 μmol/L), respectively. These results provide new insights into the design and synthesis of potential plant growth regulators...
April 26, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28445310/diagnostic-accuracy-of-serum-alanine-aminotransferase-as-biomarker-for-nonalcoholic-fatty-liver-disease-and-insulin-resistance-in-healthy-subjects-using-3t-mr-spectroscopy
#19
Jose Luis Martin-Rodriguez, Jorge Gonzalez-Cantero, Alvaro Gonzalez-Cantero, Juan Pedro Arrebola, Jorge Luis Gonzalez-Calvin
Recognition of the close relationship of nonalcoholic fatty liver disease (NAFLD) with diabetes mellitus 2, obesity, metabolic syndrome, and cardiovascular disease has stimulated growing interest in NAFLD as a public health problem. Serum alanine aminotransferase (ALT) has been proposed as a marker of NAFLD, but levels are within the range currently considered "normal" in a large proportion of NAFLD subjects.The aim of the study was to determine the diagnostic accuracy of serum ALT for identifying individuals with NAFLD, using 3-Tesla (T) magnetic resonance spectroscopy (H-MRS)...
April 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28445275/cases-of-primary-malignant-melanoma-and-melanocytosis-of-the-esophagus-observed-by-magnifying-endoscopy-application-to-differential-diagnosis-case-series
#20
Hiroyuki Ohnuma, Kazuma Ishikawa, Masahiro Hirakawa, Shohei Kikuchi, Yasushi Sato, Koji Miyanishi, Junji Kato
RATIONALE: Primary malignant melanoma of the esophagus (PMME) is a rare disease with an extremely poor prognosis. In contrast, melanocytosis is a benign condition defined as melanocytic proliferation with melanin deposition. PMME is often accompanied by melanocytosis, but differentiating between them is difficult because of their similar appearance. PATIENT CONCERNS: Here, we reported 3 PMME cases, 2 with melanocytosis. DIAGNOSES: Magnifying endoscopy revealed characteristic non-uniform pigmented spots along deformed intrapapillary capillary loops (IPCLs) in PMME, while melanocytosis showed fine granule-like or linearly arranged spots and intact IPCLs...
April 2017: Medicine (Baltimore)
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