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https://www.readbyqxmd.com/read/28211900/amyloid-%C3%AE-oligomers-interact-with-neurexin-and-diminish-neurexin-mediated-excitatory-presynaptic-organization
#1
Yusuke Naito, Yuko Tanabe, Alfred Kihoon Lee, Edith Hamel, Hideto Takahashi
Alzheimer's disease (AD) is characterized by excessive production and deposition of amyloid-beta (Aβ) proteins as well as synapse dysfunction and loss. While soluble Aβ oligomers (AβOs) have deleterious effects on synapse function and reduce synapse number, the underlying molecular mechanisms are not well understood. Here we screened synaptic organizer proteins for cell-surface interaction with AβOs and identified a novel interaction between neurexins (NRXs) and AβOs. AβOs bind to NRXs via the N-terminal histidine-rich domain (HRD) of β-NRX1/2/3 and alternatively-spliced inserts at splicing site 4 of NRX1/2...
February 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28185619/diagnosis-of-latent-tuberculosis-infection
#2
Alfred A Lardizabal, Lee B Reichman
For 2015, tuberculosis (TB) incidence in the United States has plateaued at 3.0 per 100,000. This remains the lowest case rate since recording started. On the global level, although the TB epidemic is larger than previously estimated, TB deaths and incidence rate continue to fall. For both low and high incidence countries, accelerating the decline in TB incidence towards elimination goals requires that more emphasis be placed on strengthening systems for detection and treatment of latent TB infection (LTBI) in addition to improving TB care globally...
January 2017: Microbiology Spectrum
https://www.readbyqxmd.com/read/28167600/schistosomiasis-and-human-immunodeficiency-virus-in-men-in-tanzania
#3
Jennifer A Downs, Claudia J de Dood, Hannah E Dee, Megan McGeehan, Hijab Khan, Abena Marenga, Patrick E Adel, Edward Faustine, Benson Issarow, Emmanuel F Kisanga, Godfrey Alfred Kisigo, Salvius Ngahyolerwa, Frank Zahoro, Donald Miyaye, Ruth Gideon Magawa, Julius Mngara, Myung Hee Lee, Paul L A M Corstjens, Govert J van Dam, Daniel W Fitzgerald
Schistosomiasis is a parasitic worm infection that affects over 260 million individuals worldwide. Women with schistosome infections have been demonstrated to have a 4-fold increase in the odds of human immunodeficiency virus (HIV) infection compared with women without schistosome infections. A relationship between schistosome and HIV infections has not been clearly defined in men. Among 674 men aged 18-50 years living in rural Tanzania, we identified 429 (63.6%) who had a schistosome infection as defined by serum positivity for schistosome circulating anodic antigen, visualization of parasite eggs in urine or stool, or both...
February 6, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28144752/novel-fam134b-mutations-and-their-clinicopathological-significance-in-colorectal-cancer
#4
Farhadul Islam, Vinod Gopalan, Riajul Wahab, Katherine Ting-Wei Lee, Md Hakimul Haque, Afraa Mamoori, Cu-Tai Lu, Robert A Smith, Alfred K-Y Lam
FAM134B is a putative tumour suppressor gene and no mutations in FAM134B have been reported in colorectal cancer (CRC) to date. This study aims to identify FAM134B mutation sites and the clinicopathological significance of the gene in patients with CRC. Eighty-eight colorectal cancers were studied for FAM134B mutations by Sanger sequencing. The mutations in these cancers were then tested for correlations with the clinical and pathological parameters of the studied cancers. In addition, mRNA and protein expression of FAM134B in colorectal cancers was examined by polymerase chain reaction, Western blots, and immunofluorescence analysis...
January 31, 2017: Human Genetics
https://www.readbyqxmd.com/read/28100280/erratum-to-the-whole-genome-sequence-of-the-mediterranean-fruit-fly-ceratitis-capitata-wiedemann-reveals-insights-into-the-biology-and-adaptive-evolution-of-a-highly-invasive-pest-species
#5
Alexie Papanicolaou, Marc F Schetelig, Peter Arensburger, Peter W Atkinson, Joshua B Benoit, Kostas Bourtzis, Pedro Castañera, John P Cavanaugh, Hsu Chao, Christopher Childers, Ingrid Curril, Huyen Dinh, HarshaVardhan Doddapaneni, Amanda Dolan, Shannon Dugan, Markus Friedrich, Giuliano Gasperi, Scott Geib, Georgios Georgakilas, Richard A Gibbs, Sarah D Giers, Ludvik M Gomulski, Miguel González-Guzmán, Ana Guillem-Amat, Yi Han, Artemis G Hatzigeorgiou, Pedro Hernández-Crespo, Daniel S T Hughes, Jeffery W Jones, Dimitra Karagkouni, Panagiota Koskinioti, Sandra L Lee, Anna R Malacrida, Mosè Manni, Kostas Mathiopoulos, Angela Meccariello, Monica Munoz-Torres, Shwetha C Murali, Terence D Murphy, Donna M Muzny, Georg Oberhofer, Félix Ortego, Maria D Paraskevopoulou, Monica Poelchau, Jiaxin Qu, Martin Reczko, Hugh M Robertson, Andrew J Rosendale, Andrew E Rosselot, Giuseppe Saccone, Marco Salvemini, Grazia Savini, Patrick Schreiner, Francesca Scolari, Paolo Siciliano, Sheina B Sim, George Tsiamis, Enric Ureña, Ioannis S Vlachos, John H Werren, Ernst A Wimmer, Kim C Worley, Antigone Zacharopoulou, Stephen Richards, Alfred M Handler
No abstract text is available yet for this article.
January 18, 2017: Genome Biology
https://www.readbyqxmd.com/read/28097617/rates-and-covariates-of-recent-sexual-and-physical-violence-against-hiv-infected-outpatient-drinkers-in-western-kenya
#6
Rebecca K Papas, Benson N Gakinya, Michael M Mwaniki, Hana Lee, Stella W Kiarie, Steve Martino, Michelle P Loxley, Alfred K Keter, Debra A Klein, John E Sidle, Joyce B Baliddawa, Stephen A Maisto
Victimization from physical and sexual violence presents global health challenges. Partner violence is higher in Kenya than Africa. Violence against drinkers and HIV-infected individuals is typically elevated, so dual vulnerabilities may further augment risk. Understanding violence risks can improve interventions. Participants were 614 HIV-infected outpatient drinkers in western Kenya enrolled in a randomized trial to reduce alcohol use. At baseline, past 90-day partner physical and sexual violence were examined descriptively and in gender-stratified regression models...
January 17, 2017: AIDS and Behavior
https://www.readbyqxmd.com/read/28067906/prophage-mediated-defence-against-viral-attack-and-viral-counter-defence
#7
Rebekah M Dedrick, Deborah Jacobs-Sera, Carlos A Guerrero Bustamante, Rebecca A Garlena, Travis N Mavrich, Welkin H Pope, Juan C Cervantes Reyes, Daniel A Russell, Tamarah Adair, Richard Alvey, J Alfred Bonilla, Jerald S Bricker, Bryony R Brown, Deanna Byrnes, Steven G Cresawn, William B Davis, Leon A Dickson, Nicholas P Edgington, Ann M Findley, Urszula Golebiewska, Julianne H Grose, Cory F Hayes, Lee E Hughes, Keith W Hutchison, Sharon Isern, Allison A Johnson, Margaret A Kenna, Karen K Klyczek, Catherine M Mageeney, Scott F Michael, Sally D Molloy, Matthew T Montgomery, James Neitzel, Shallee T Page, Marie C Pizzorno, Marianne K Poxleitner, Claire A Rinehart, Courtney J Robinson, Michael R Rubin, Joseph N Teyim, Edwin Vazquez, Vassie C Ware, Jacqueline Washington, Graham F Hatfull
Temperate phages are common, and prophages are abundant residents of sequenced bacterial genomes. Mycobacteriophages are viruses that infect mycobacterial hosts including Mycobacterium tuberculosis and Mycobacterium smegmatis, encompass substantial genetic diversity and are commonly temperate. Characterization of ten Cluster N temperate mycobacteriophages revealed at least five distinct prophage-expressed viral defence systems that interfere with the infection of lytic and temperate phages that are either closely related (homotypic defence) or unrelated (heterotypic defence) to the prophage...
January 9, 2017: Nature Microbiology
https://www.readbyqxmd.com/read/27922744/lung-pathologies-in-a-chronic-inflammation-mouse-model-are-independent-of-eosinophil-degranulation
#8
Elizabeth A Jacobsen, Sergei I Ochkur, Alfred D Doyle, William E LeSuer, Wen Li, Cheryl A Protheroe, Dana Colbert, Katie R Zellner, HuaHao H Shen, Charles G Irvin, James J Lee, Nancy A Lee
RATIONALE: The release of eosinophil granule proteins in the lungs of asthma patients has been dogmatically linked with lung remodeling and airway hyperresponsiveness (AHR). However, the demonstrated inability of established mouse models to display the eosinophil degranulation occurring in human subjects has prevented a definitive in vivo test of this hypothesis. OBJECTIVES: To demonstrate in vivo causative links between induced pulmonary histopathologies/lung dysfunction and eosinophil degranulation...
December 6, 2016: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/27908880/an-anti-cd3-anti-cll-1-bispecific-antibody-for-the-treatment-of-acute-myeloid-leukemia
#9
Steven R Leong, Siddharth Sukumaran, Maria Hristopoulos, Klara Totpal, Shannon Stainton, Elizabeth Lu, Alfred Wong, Lucinda Tam, Robert Newman, Brian R Vuillemenot, Diego Ellerman, Chen Gu, Mary Mathieu, Mark S Dennis, Allen Nguyen, Bing Zheng, Crystal Zhang, Genee Lee, Yu-Waye Chu, Rodney A Prell, Kedan Lin, Steven T Laing, Andrew G Polson
Acute myeloid leukemia (AML) is major unmet medical need. Most patients have poor long-term survival and treatment has not significantly changed in 40 years. Recently, bispecific antibodies that redirect the cytotoxic activity of effector T-cells by binding to CD3, the signaling component of the T-cell receptor, and a tumor target have shown clinical activity. Notably, blinatumomab is approved to treat relapsed/refractory acute lymphoid leukemia. Here we describe the design, discovery, pharmacological activity, pharmacokinetics, and safety of a CD3 T-cell-dependent bispecific (TDB) full-length human IgG1 therapeutic antibody targeting CLL-1 that could potentially be used in humans to treat AML...
December 1, 2016: Blood
https://www.readbyqxmd.com/read/27897140/agins2-quantum-dots-for-the-detection-of-trinitrotoluene
#10
Alfred J Baca, Heather A Meylemans, Lawrence Baldwin, Lee R Cambrea, Ji Feng, Yadong Yin, M Joseph Roberts
AgInS2 (AIS) quantum dots (QDs) were synthesized via a thermal decomposition reaction with dodecylamine as the ligand to help stabilize the QDs. This reaction procedure is relatively easy to implement, scalable to large batches (up to hundreds of milligrams of QDs are produced), and a convenient method for the synthesis of chalcogenide QDs. Metal powders of AgNO3 and In(NO3)3, were used as the metal precursors while diethyldithiocarbamate was used as the sulfur source. The AIS QDs were characterized via transmission electron microscopy, atomic force microscopy, and energy dispersive x-ray spectroscopy...
January 6, 2017: Nanotechnology
https://www.readbyqxmd.com/read/27887955/treatment-of-hypereosinophilic-syndrome-with-cutaneous-involvement-with-the-jak-inhibitors-tofacitinib-and-ruxolitinib
#11
Brett King, Alfred Ian Lee, Jaehyuk Choi
No abstract text is available yet for this article.
November 22, 2016: Journal of Investigative Dermatology
https://www.readbyqxmd.com/read/27878822/wide-variations-in-blood-product-transfusion-practices-among-providers-who-care-for-patients-with-acute-leukemia-in-the-united-states
#12
Alexander B Pine, Eun-Ju Lee, Mikkael Sekeres, David P Steensma, Daniel Zelterman, Thomas Prebet, Amy DeZern, Rami Komrokji, Mark Litzow, Selina Luger, Richard Stone, Harry P Erba, Guillermo Garcia-Manero, Alfred I Lee, Nikolai A Podoltsev, Lisa Barbarotta, Stephanie Kasberg, Jeanne E Hendrickson, Steven D Gore, Amer M Zeidan
BACKGROUND: Transfusion of blood products is a key component of the supportive management in patients with acute leukemia (AL). However high-quality trial evidence and clinical outcome data to support specific transfusion goals for blood products for patients with AL remain limited leading to diverse transfusion practices. The primary objective of this study was to determine the spectrum of transfusion patterns in a variety of care settings among providers who treat AL patients. STUDY DESIGN AND METHODS: A 31-question survey queried providers caring for AL patients about the existence of institutional guidelines for transfusion of blood products, transfusion triggers for hemoglobin (Hb), platelets (PLTs), and fibrinogen in various settings including inpatient and outpatient and before procedures...
February 2017: Transfusion
https://www.readbyqxmd.com/read/27870886/comparative-genomics-revealed-multiple-helicobacter-pylori-genes-associated-with-biofilm-formation-in-vitro
#13
Eric Hong Jian Wong, Chow Goon Ng, Eng Guan Chua, Alfred Chin Yen Tay, Fanny Peters, Barry J Marshall, Bow Ho, Khean Lee Goh, Jamuna Vadivelu, Mun Fai Loke
BACKGROUND: Biofilm formation by Helicobacter pylori may be one of the factors influencing eradication outcome. However, genetic differences between good and poor biofilm forming strains have not been studied. MATERIALS AND METHODS: Biofilm yield of 32 Helicobacter pylori strains (standard strain and 31 clinical strains) were determined by crystal-violet assay and grouped into poor, moderate and good biofilm forming groups. Whole genome sequencing of these 32 clinical strains was performed on the Illumina MiSeq platform...
2016: PloS One
https://www.readbyqxmd.com/read/27866576/thrombocytopenia
#14
REVIEW
Eun-Ju Lee, Alfred Ian Lee
Thrombocytopenia is a commonly encountered hematologic problem in inpatient and ambulatory medicine. The many underlying mechanisms of thrombocytopenia include pseudothrombocytopenia, splenic sequestration, and marrow underproduction and destruction. This article presents the known causes of thrombocytopenia, a framework for evaluation, and brief descriptions of management in a case-based format.
December 2016: Primary Care
https://www.readbyqxmd.com/read/27861463/promoting-healthy-eating-and-active-playtime-by-connecting-to-nature-families-with-preschool-children-evaluation-of-pilot-study-play-grow
#15
Tanja Sobko, Zhenzhen Jia, Matthew Kaplan, Alfred Lee, Chia-Huei Tseng
BackgroundThis pilot project aimed to evaluate the "Play&Grow" program which promotes age-appropriate dietary habits and playtime healthy routines through "connectedness to nature" experiences in Hong Kong families with young children.Method38 pre-schoolers (aged 33.97 ± 9.38 months), mothers and their domestic workers were recruited. The families attended one workshop/week for a 4-month period, consisting of: 1) health topic; 2) food games; 3) nature-related outdoor activities.ResultsFeeding practices, particularly Promoting and Encouragement to eat (PE) and Instrumental Feeding (IF) improved after the intervention (p =...
November 18, 2016: Pediatric Research
https://www.readbyqxmd.com/read/27829463/frequency-and-predictors-of-the-lupus-low-disease-activity-state-in-a-multi-national-and-multi-ethnic-cohort
#16
Vera Golder, Rangi Kandane-Rathnayake, Alberta Yik-Bun Hoi, Molla Huq, Worawit Louthrenoo, Yuan An, Zhan Guo Li, Shue Fen Luo, Sargunan Sockalingam, Chak Sing Lau, Alfred Lok Lee, Mo Yin Mok, Aisha Lateef, Kate Franklyn, Susan Morton, Sandra Teresa V Navarra, Leonid Zamora, Yeong-Jian Wu, Laniyati Hamijoyo, Madelynn Chan, Sean O'Neill, Fiona Goldblatt, Eric Francis Morand, Mandana Nikpour
BACKGROUND: Systemic lupus erythematosus (SLE) is a chronic heterogeneous disease with considerable burden from disease activity and damage. A novel clinical treatment target in the form of the lupus low disease activity state (LLDAS) has been recently reported, with retrospective validation showing that time spent in LLDAS translates to reduced damage accrual. The objectives of this study were to describe the frequency and identify the predictors of attaining LLDAS in a large multinational cohort of patients with SLE...
November 9, 2016: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/27793011/metastasis-suppressing-nid2-an-epigenetically-silenced-gene-in-the-pathogenesis-of-nasopharyngeal-carcinoma-and-esophageal-squamous-cell-carcinoma
#17
Annie Wai Yeeng Chai, Arthur Kwok Leung Cheung, Wei Dai, Josephine Mun Yee Ko, Joseph Chok Yan Ip, Kwok Wah Chan, Dora Lai-Wan Kwong, Wai Tong Ng, Anne Wing Mui Lee, Roger Kai Cheong Ngan, Chun Chung Yau, Stewart Yuk Tung, Victor Ho Fun Lee, Alfred King-Yin Lam, Suja Pillai, Simon Law, Maria Li Lung
Nidogen-2 (NID2) is a key component of the basement membrane that stabilizes the extracellular matrix (ECM) network. The aim of the study is to analyze the functional roles of NID2 in the pathogenesis of nasopharyngeal carcinoma (NPC) and esophageal squamous cell carcinoma (ESCC). We performed genome-wide methylation profiling of NPC and ESCC and validated our findings using the methylation-sensitive high-resolution melting (MS-HRM) assay. Results showed that promoter methylation of NID2 was significantly higher in NPC and ESCC samples than in their adjacent non-cancer counterparts...
October 25, 2016: Oncotarget
https://www.readbyqxmd.com/read/27779965/management-of-completion-and-total-thyroidectomy-patients-based-on-1-hour-postoperative-parathyroid-hormone
#18
Joshua Park, Ethan Frank, Alfred Simental, Sara Yang, Christopher Vuong, Steve Lee, Pedro Andrade Filho
After thyroid surgery, protocols based on postoperative parathyroid hormone (PTH) levels may prevent symptoms of hypocalcemia, while avoiding unnecessary prophylactic calcium and/or vitamin D supplementation. We examined the value of an initial management protocol based solely on a single PTH level measured one hour after completion or total thyroidectomy to prevent symptomatic hypocalcemia by conducting a retrospective review of 697 consecutive patients treated from July 2003 to April 2015. The proportion of patients who developed symptomatic hypocalcemia was similar between those treated before (n = 155) and after (n = 542) implementation of this 1-hour PTH protocol (16...
October 2016: American Surgeon
https://www.readbyqxmd.com/read/27722031/categorizing-fetal-heart-rate-variability-with-and-without-visual-aids
#19
Amanda J Ashdown, Mark W Scerbo, Lee A Belfore, Stephen S Davis, Alfred Z Abuhamad
Objective This study examined the ability of clinicians to correctly categorize images of fetal heart rate (FHR) variability with and without the use of exemplars. Study Design A sample of 33 labor and delivery clinicians inspected static FHR images and categorized them into one of four categories defined by the National Institute of Child Health and Human Development (NICHD) based on the amount of variability within absent, minimal, moderate, or marked ranges. Participants took part in three conditions: two in which they used exemplars representing FHR variability near the center or near the boundaries of each range, and a third control condition with no exemplars...
October 2016: American Journal of Perinatology Reports
https://www.readbyqxmd.com/read/27697534/emerging-roles-of-the-neurotrophin-receptor-trkc-in-synapse-organization
#20
Yusuke Naito, Alfred Kihoon Lee, Hideto Takahashi
Tropomyosin-receptor-kinase (Trk) receptors have been extensively studied for their roles in kinase-dependent signaling cascades in nervous system development. Synapse organization is coordinated by trans-synaptic interactions of various cell adhesion proteins, a representative example of which is the neurexin-neuroligin complex. Recently, a novel role for TrkC as a synapse organizing protein has been established. Post-synaptic TrkC binds to pre-synaptic type-IIa receptor-type protein tyrosine phosphatase sigma (PTPσ)...
September 30, 2016: Neuroscience Research
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