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https://www.readbyqxmd.com/read/28522808/plasmonics-enhanced-smartphone-fluorescence-microscopy
#1
Qingshan Wei, Guillermo Acuna, Seungkyeum Kim, Carolin Vietz, Derek Tseng, Jongjae Chae, Daniel Shir, Wei Luo, Philip Tinnefeld, Aydogan Ozcan
Smartphone fluorescence microscopy has various applications in point-of-care (POC) testing and diagnostics, ranging from e.g., quantification of immunoassays, detection of microorganisms, to sensing of viruses. An important need in smartphone-based microscopy and sensing techniques is to improve the detection sensitivity to enable quantification of extremely low concentrations of target molecules. Here, we demonstrate a general strategy to enhance the detection sensitivity of a smartphone-based fluorescence microscope by using surface-enhanced fluorescence (SEF) created by a thin metal-film...
May 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28521874/sirna-mediated-inhibition-of-srebp-cleavage-activating-protein-reduces-dyslipidemia-in-spontaneously-dysmetabolic-rhesus-monkeys
#2
Beth Ann Murphy, Marija Tadin-Strapps, Kristian Jensen, Robin Mogg, Andy Liaw, Kithsiri Herath, Gowri Bhat, David G McLaren, Stephen F Previs, Shirly Pinto
BACKGROUND: SREBP cleavage-activating protein (SCAP) is a cholesterol binding endoplasmic reticulum (ER) membrane protein that is required to activate SREBP transcription factors. SREBPs regulate genes involved in lipid biosynthesis. They also influence lipid clearance by modulating the expression of LDL receptor (LDLR) and proprotein convertase subtilisin/kexin type 9 (PCSK9) genes. Inhibiting SCAP decreases circulating PCSK9, triglycerides (TG), and LDL-cholesterol (LDL-C), both in vitro and in vivo...
June 2017: Metabolism: Clinical and Experimental
https://www.readbyqxmd.com/read/28507030/ccr2-regulates-the-immune-response-by-modulating-the-interconversion-and-function-of-effector-and-regulatory-t-cells
#3
Eszter Bakos, Christoph A Thaiss, Matthias P Kramer, Sivan Cohen, Lihi Radomir, Irit Orr, Nathali Kaushansky, Avraham Ben-Nun, Shirly Becker-Herman, Idit Shachar
Chemokines and chemokine receptors establish a complex network modulating immune cell migration and localization. These molecules were also suggested to mediate the differentiation of leukocytes; however, their intrinsic, direct regulation of lymphocyte fate remained unclear. CCR2 is the main chemokine receptor inducing macrophage and monocyte recruitment to sites of inflammation, and it is also expressed on T cells. To assess whether CCR2 directly regulates T cell responses, we followed the fates of CCR2(-/-) T cells in T cell-specific inflammatory models...
May 15, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28495659/social-inclusion-of-individuals-with-intellectual-disabilities-in-the-military
#4
Shirli Werner, Yael Hochman
BACKGROUND: Despite policies advocating the social inclusion of persons with disabilities in all settings that are a part of everyday life within society, individuals with intellectual disabilities (ID) are usually excluded from service in the military. AIMS: This study examined the meaning of service in the military for individuals with ID from the perspective of various stakeholder groups. METHODS AND PROCEDURES: Semi-structured qualitative interviews were conducted with 31 individuals with ID, 36 relatives, and 28 commanders...
May 7, 2017: Research in Developmental Disabilities
https://www.readbyqxmd.com/read/28480589/quantification-and-tracking-of-genetically-engineered-dendritic-cells-for-studying-immunotherapy
#5
Amnon Bar-Shir, Lina Alon, Michael J Korrer, Hong Seo Lim, Nirbhay N Yadav, Yoshinori Kato, Arvind P Pathak, Jeff W M Bulte, Assaf A Gilad
PURPOSE: Genetically encoded reporters can assist in visualizing biological processes in live organisms and have been proposed for longitudinal and noninvasive tracking of therapeutic cells in deep tissue. Cells can be labeled in situ or ex vivo and followed in live subjects over time. Nevertheless, a major challenge for reporter systems is to identify the cell population that actually expresses an active reporter. METHODS: We have used a nucleoside analog, pyrrolo-2'-deoxycytidine, as an imaging probe for the putative reporter gene, Drosophila melanogaster 2'-deoxynucleoside kinase...
May 7, 2017: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/28471618/a-retrospective-comparison-of-fecal-microbial-transplantation-methods-for-recurrent-clostridium-difficile-infection
#6
Nathaniel A Cohen, Dan M Livovsky, Shir Yaakobovitch, Merav Ben Yehoyada, Ronen Ben Ami, Amos Adler, Hanan Guzner-Gur, Eran Goldin, Moshe E Santo, Zamir Halpern, Kalman Paz, Nitsan Maharshak
BACKGROUND: Antibiotic treatment of Clostridium difficile infection (CDI) has a high failure rate. Fecal microbiota transplantation (FMT) has proven very effective in treating these recurrences. OBJECTIVES: To determine which method of fecal microbiota transplantation (upper or lower gastrointestinal) and which type of donor (a relative or unrelated) is superior. METHODS: This is a retrospective analysis of treatment protocols and outcomes in 22 patients with refractory or recurrent CDI who underwent FMT at two Israeli facilities...
October 2016: Israel Medical Association Journal: IMAJ
https://www.readbyqxmd.com/read/28433118/the-role-of-public-health-in-combatting-synthetic-cannabinoid-use-in-adolescents
#7
Katherine E Warren, Shirli Tay, Leana S Wen
As the country struggles to address an epidemic of alcohol and drug overdose, a wide-ranging category of chemical substances known as synthetic drugs have provoked a new sense of public urgency over the past decade. Synthetic cannabinoids, a heterogeneous and evolving set of synthetic compounds that act on endogenous cannabinoid receptors, have become particularly popular among adolescents due to their relative ease of access and reputation as a "legal high." The Baltimore City Health Department has worked to combat the recent surge in synthetic drug use through a major public awareness campaign, legislative reform, and retailer engagement and compliance initiative...
May 2017: Journal of Adolescent Health: Official Publication of the Society for Adolescent Medicine
https://www.readbyqxmd.com/read/28422966/taming-the-late-quaternary-phylogeography-of-the-eurasiatic-wild-ass-through-ancient-and-modern-dna
#8
E Andrew Bennett, Sophie Champlot, Joris Peters, Benjamin S Arbuckle, Silvia Guimaraes, Mélanie Pruvost, Shirli Bar-David, Simon J M Davis, Mathieu Gautier, Petra Kaczensky, Ralph Kuehn, Marjan Mashkour, Arturo Morales-Muñiz, Erich Pucher, Jean-François Tournepiche, Hans-Peter Uerpmann, Adrian Bălăşescu, Mietje Germonpré, Can Y Gündem, Mahmoud-Reza Hemami, Pierre-Elie Moullé, Aliye Ötzan, Margarete Uerpmann, Chris Walzer, Thierry Grange, Eva-Maria Geigl
Taxonomic over-splitting of extinct or endangered taxa, due to an incomplete knowledge of both skeletal morphological variability and the geographical ranges of past populations, continues to confuse the link between isolated extant populations and their ancestors. This is particularly problematic with the genus Equus. To more reliably determine the evolution and phylogeographic history of the endangered Asiatic wild ass, we studied the genetic diversity and inter-relationships of both extinct and extant populations over the last 100,000 years, including samples throughout its previous range from Western Europe to Southwest and East Asia...
2017: PloS One
https://www.readbyqxmd.com/read/28385460/task-selectivity-as-a-comprehensive-principle-for-brain-organization
#9
Amir Amedi, Shir Hofstetter, Shachar Maidenbaum, Benedetta Heimler
How do the anatomically consistent functional selectivities of the brain emerge? A new study by Bola and colleagues reveals task selectivity in auditory rhythm-selective areas in congenitally deaf adults perceiving visual rhythm sequences. Here, we contextualize this result with accumulating evidence from animal and human studies supporting sensory-independent task specializations as a comprehensive principle shaping brain (re)organization.
April 3, 2017: Trends in Cognitive Sciences
https://www.readbyqxmd.com/read/28380836/polarization-dependence-of-asymmetric-off-resonance-long-period-fiber-gratings-erratum
#10
Gilad Masri, Shir Shahal, Avi Klein, Hamootal Duadi, Moti Fridman
Correction of Fig. 3 which was taken with different conditions than stated in the text. The figure presented here is the correct version with improved resolution.
March 6, 2017: Optics Express
https://www.readbyqxmd.com/read/28377439/association-between-use-of-long-acting-nitrates-and-outcomes-in-heart-failure-with-preserved-ejection-fraction
#11
Shir Lynn Lim, Lina Benson, Ulf Dahlström, Carolyn S P Lam, Lars H Lund
BACKGROUND: Nitrates may be beneficial in heart failure with preserved ejection fraction (HFpEF) by enhancing cGMP signaling and improving hemodynamics, but real-world data on potential efficacy are lacking. METHODS AND RESULTS: We linked the Swedish Heart Failure Registry to national registries with International Classification of Diseases, Tenth Revision comorbidity diagnoses and demographic and socioeconomic data. In HFpEF, defined as left ventricular ejection fraction ≥40%, we derived propensity scores for nitrate use using 52 baseline variables...
April 2017: Circulation. Heart Failure
https://www.readbyqxmd.com/read/28374900/spoligotyping-of-mycobacterium-tuberculosis-isolates-at-a-tertiary-care-hospital-in-india
#12
Shirly Suzana, Sivakumar Shanmugam, K R Uma Devi, P N Swarna Latha, Joy S Michael
OBJECTIVE: Spoligotyping is a valuable genotyping tool to study the genetic diversity and molecular epidemiology of Mycobacterium tuberculosis (M. tb). The aim of this study was to analyse different spoligotype patterns of M. tb strains isolated from patients with tuberculosis from different parts of India. MATERIALS AND METHODS: A total of 163 M. tb isolates were spoligotyped between January 2014 and January 2015. About 47% (n = 77) were from patients with extrapulmonary tuberculosis; of these, 10 were MDR, and seven were Pre-XDR...
April 4, 2017: Tropical Medicine & International Health: TM & IH
https://www.readbyqxmd.com/read/28373485/identification-and-characterization-of-a-novel-dgat1-missense-mutation-associated-with-congenital-diarrhea
#13
Nina L Gluchowski, Chandramohan Chitraju, Joseph A Picoraro, Niklas Mejhert, Shirly Pinto, Winnie Xin, Daniel S Kamin, Harland S Winter, Wendy K Chung, Tobias C Walther, Robert V Farese
Acyl CoA:diacylglycerol acyltransferase-1 and -2 (DGAT1 and DGAT2) catalyze triglyceride biosynthesis in humans. Biallelic loss of function mutations in human DGAT1 result in severe congenital diarrhea and protein-losing enteropathy. Additionally, pharmacologic inhibition of DGAT1 led to dose- related diarrhea in human clinical trials. Here we identify a previously unknown DGAT1 mutation in identical twins of South Asian descent. These male patients developed watery diarrhea shortly after birth, with protein-losing enteropathy and failure to thrive...
April 3, 2017: Journal of Lipid Research
https://www.readbyqxmd.com/read/28344758/no-evidence-of-early-head-circumference-enlargements-in-children-later-diagnosed-with-autism-in-israel
#14
Ilan Dinstein, Shlomi Haar, Shir Atsmon, Hen Schtaerman
BACKGROUND: Large controversy exists regarding the potential existence and clinical significance of larger brain volumes in toddlers who later develop autism. Assessing this relationship is important for determining the clinical utility of early head circumference (HC) measures and for assessing the validity of the early overgrowth hypothesis of autism, which suggests that early accelerated brain development may be a hallmark of the disorder. METHODS: We performed a retrospective comparison of HC, height, and weight measurements between 66 toddlers who were later diagnosed with autism and 66 matched controls...
2017: Molecular Autism
https://www.readbyqxmd.com/read/28334849/icf-specific-dnmt3b-dysfunction-interferes-with-intragenic-regulation-of-mrna-transcription-and-alternative-splicing
#15
Sole Gatto, Miriam Gagliardi, Monica Franzese, Sylwia Leppert, Mariarosaria Papa, Marco Cammisa, Giacomo Grillo, Guillame Velasco, Claire Francastel, Shir Toubiana, Maurizio D'Esposito, Claudia Angelini, Maria R Matarazzo
Hypomorphic mutations in DNA-methyltransferase DNMT3B cause majority of the rare disorder Immunodeficiency, Centromere instability and Facial anomalies syndrome cases (ICF1). By unspecified mechanisms, mutant-DNMT3B interferes with lymphoid-specific pathways resulting in immune response defects. Interestingly, recent findings report that DNMT3B shapes intragenic CpG-methylation of highly-transcribed genes. However, how the DNMT3B-dependent epigenetic network modulates transcription and whether ICF1-specific mutations impair this process remains unknown...
March 9, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/28322768/unintended-pregnancies-among-women-serving-in-the-israeli-military
#16
Misgav Rottenstreich, Limor Loitner, Shir Dar, Ron Kedem, Noam Smorgick, Zvi Vaknin
OBJECTIVE: To identify the prevalence of and variables associated with unintended pregnancy among young, unmarried women serving in the Israeli military. STUDY DESIGN: A retrospective cohort study of unmarried women drafted by the Israeli military between 2013 and 2015 at the age of 18years. We used multivariable logistic regression to examine associations between unintended pregnancy and women's education, IQ, immigration status, country of origin, neighborhood socioeconomic status, and history of psychiatric illness...
March 16, 2017: Contraception
https://www.readbyqxmd.com/read/28280406/development-and-implementation-of-a-registry-of-patients-attending-multidisciplinary-pain-treatment-clinics-the-quebec-pain-registry
#17
M Choinière, M A Ware, M G Pagé, A Lacasse, H Lanctôt, N Beaudet, A Boulanger, P Bourgault, C Cloutier, L Coupal, Y De Koninck, D Dion, P Dolbec, L Germain, V Martin, P Sarret, Y Shir, M-C Taillefer, B Tousignant, A Trépanier, R Truchon
The Quebec Pain Registry (QPR) is a large research database of patients suffering from various chronic pain (CP) syndromes who were referred to one of five tertiary care centres in the province of Quebec (Canada). Patients were monitored using common demographics, identical clinical descriptors, and uniform validated outcomes. This paper describes the development, implementation, and research potential of the QPR. Between 2008 and 2013, 6902 patients were enrolled in the QPR, and data were collected prior to their first visit at the pain clinic and six months later...
2017: Pain Research & Management: the Journal of the Canadian Pain Society
https://www.readbyqxmd.com/read/28258898/prospective-qualitative-and-quantitative-analysis-of-real-time-peer-review-quality-assurance-rounds-incorporating-direct-physical-examination-for-head-and-neck-cancer-radiation-therapy
#18
Carlos E Cardenas, Abdallah S R Mohamed, Randa Tao, Andrew J R Wong, Mussadiq J Awan, Shirly Kuruvila, Michalis Aristophanous, G Brandon Gunn, Jack Phan, Beth M Beadle, Steven J Frank, Adam S Garden, William H Morrison, Clifton D Fuller, David I Rosenthal
PURPOSE: Our department has a long-established comprehensive quality assurance (QA) planning clinic for patients undergoing radiation therapy (RT) for head and neck cancer. Our aim is to assess the impact of a real-time peer review QA process on the quantitative and qualitative radiation therapy plan changes in the era of intensity modulated RT (IMRT). METHODS AND MATERIALS: Prospective data for 85 patients undergoing head and neck IMRT who presented at a biweekly QA clinic after simulation and contouring were collected...
November 19, 2016: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/28254227/unexpected-epithelial-ovarian-cancers-arising-from-presumed-endometrioma-a-10-year-retrospective-analysis
#19
Hsin-Hong Kuo, Chen-Ying Huang, Shir-Hwa Ueng, Kuan-Gen Huang, Chyi-Long Lee, Chih-Feng Yen
OBJECTIVE: To evaluate the incidence and prognosis of unexpected epithelial ovarian cancers (EOCs) occurring in presumed benign endometrioma. MATERIALS AND METHODS: Patients who underwent primary surgery at Chang Gung Memorial Hospital between November 2003 and October 2013 were searched with the Systematized Nomenclature of Medicine code followed by chart review. RESULTS: The incidence of unexpected EOCs in presumed ovarian endometrioma was 0...
February 2017: Taiwanese Journal of Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28252959/microscale-high-throughput-experimentation-as-an-enabling-technology-in-drug-discovery-application-in-the-discovery-of-piperidinyl-pyridinyl-1h-benzimidazole-diacylglycerol-acyltransferase-1-inhibitors
#20
Tim Cernak, Nathan J Gesmundo, Kevin Dykstra, Yang Yu, Zhicai Wu, Zhi-Cai Shi, Petr Vachal, Donald Sperbeck, Shuwen He, Beth Ann Murphy, Lisa Sonatore, Steven Williams, Maria Madeira, Andreas Verras, Maud Reiter, Claire Heechoon Lee, James Cuff, Edward C Sherer, Jeffrey Kuethe, Stephen Goble, Nicholas Perrotto, Shirly Pinto, Dong-Ming Shen, Ravi Nargund, James Balkovec, Robert J DeVita, Spencer D Dreher
Miniaturization and parallel processing play an important role in the evolution of many technologies. We demonstrate the application of miniaturized high-throughput experimentation methods to resolve synthetic chemistry challenges on the frontlines of a lead optimization effort to develop diacylglycerol acyltransferase (DGAT1) inhibitors. Reactions were performed on ∼1 mg scale using glass microvials providing a miniaturized high-throughput experimentation capability that was used to study a challenging SNAr reaction...
May 11, 2017: Journal of Medicinal Chemistry
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