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https://www.readbyqxmd.com/read/28346597/association-of-risk-of-viremia-immunosuppression-serious-clinical-events-and-mortality-with-increasing-age-in-perinatally-human-immunodeficiency-virus-infected-youth
#1
Anne M Neilan, Brad Karalius, Kunjal Patel, Russell B Van Dyke, Mark J Abzug, Allison L Agwu, Paige L Williams, Murli Purswani, Deborah Kacanek, James M Oleske, Sandra K Burchett, Andrew Wiznia, Miriam Chernoff, George R Seage, Andrea L Ciaranello
Importance: As perinatally human immunodeficiency virus-infected youth (PHIVY) in the United States grow older and more treatment experienced, clinicians need updated information about the association of age, CD4 cell count, viral load (VL), and antiretroviral (ARV) drug use with risk of opportunistic infections, key clinical events, and mortality to understand patient risks and improve care. Objective: To examine the incidence or first occurrence during follow-up of key clinical events (including Centers for Disease Control and Prevention stage B [CDC-B] and stage C [CDC-C] events) and mortality among PHIVY stratified by age, CD4 cell count, and VL and ARV status...
March 27, 2017: JAMA Pediatrics
https://www.readbyqxmd.com/read/28345690/expedient-synthesis-of-a-phenanthro-imidazo-pyridine-fused-heteropolynuclear-framework-via-cdc-coupling-a-new-class-of-luminophores
#2
Biswadip Banerji, Satadru Chatterjee, K Chandrasekhar, Suvankar Bera, Leena Majumder, Chandraday Prodhan, Keya Chaudhuri
We herein report the design and synthesis of a group of fused phenanthro-imidazo[1,2-a]pyridine derivatives as a new class of luminescent materials through a Pd(ii) catalyzed intramolecular CDC (cross dehydrogenative coupling) reaction. This method thus unlocked a convenient & expedient way for the synthesis of a new molecular framework containing π-extended fused heteropolycycles. The heteropolycycles showed very good fluorescence properties both in solid and solution phases which were further utilized in live cell imaging...
March 27, 2017: Organic & Biomolecular Chemistry
https://www.readbyqxmd.com/read/28345175/enantioselective-palladium-catalyzed-carbonylative-carbocyclization-of-enallenes-via-cross-dehydrogenative-coupling-with-terminal-alkynes-efficient-construction-of-%C3%AE-chirality-of-ketones
#3
Bin Yang, Youai Qiu, Tuo Jiang, William D Wulff, Xiaopeng Yin, Can Zhu, Jan-E Bäckvall
An enantioselective Pd(II) /Brønsted acid-catalyzed carbonylative carbocyclization of enallenes ending with a cross-dehydrogenative coupling (CDC) with a terminal alkyne was developed. VAPOL phosphoric acid was found as the best co-catalyst among the examined 28 chiral acids, for inducing the enantioselectivity of α-chiral ketones. As a result, a number of chiral cyclopentenones were easily synthesized in good to excellent enantiomeric ratio with good yields.
March 27, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28343110/the-harder-they-fall-sex-and-race-ethnic-specific-suicide-rates-in-the-u-s-foreclosure-crisis
#4
Jason N Houle, Michael T Light
Previous work shows suicide rates increase during economic recessions, but little research has examined the extent to which the foreclosure crisis-a unique aspect of the Great Recession-has contributed to disparities in rising suicide rates by race and sex. We develop and test two competing hypotheses regarding the association between foreclosures and race by sex specific suicide rates. We link foreclosure data (RealtyTrac) and suicide data (CDC) from 174 metropolitan areas from 2005 to 2010 (1044 MSA-year observations) and find that-net of time invariant unobserved between-metro area differences, national time trends, and time-varying confounders-a rise in the foreclosure rate is associated with a marginal increase in suicide, but this main effect masks considerable heterogeneity across groups...
March 19, 2017: Social Science & Medicine
https://www.readbyqxmd.com/read/28342977/the-role-of-mir-2%C3%A2-13%C3%A2-71-cluster-in-resistance-to-deltamethrin-in-culex-pipiens-pallens
#5
Qin Guo, Yun Huang, Feifei Zou, Bingqian Liu, Mengmeng Tian, Wenyun Ye, Juxin Guo, Xueli Sun, Dan Zhou, Yan Sun, Lei Ma, Bo Shen, Changliang Zhu
Excessive and continuous application of deltamethrin has resulted in the development of deltamethrin resistance among mosquitoes, which becomes a major obstacle for mosquito control. In a previous study, differentially expressed miRNAs between deltamethrin-susceptible (DS) strain and deltamethrin-resistant (DR) strain using illumina sequencing in Culex pipiens pallens were identified. In this study, we applied RNAi and the Centers for Disease Control and Prevention (CDC) bottle bioassay to investigate the relationship between miR-2∼13∼71 cluster (miR-2, miR-13 and miR-71) and deltamethrin resistance...
March 22, 2017: Insect Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/28340808/cytotoxic-antibody-detection-by-means-of-flow-cytometric-cross-match
#6
T Bilgen, P Ata, J Tozkir, H Tozkir, M I Titiz
BACKGROUND: Complement-dependent lymphocytotoxicity (CDC-XM) and flow-cytometric (FCXM) cross-match are analyzed individually for each donor and recipient pair, because these techniques have fundamental differences for the evaluation of histocompatibility. Lately, cytotoxic flow-cytometric cross-match (cFCXM) has been developed as an alternative to both CDC-XM and FCXM techniques. We evaluated the limits of cFCXM with the use of different positive serum dilutions. METHODS: CDC-XM, FCXM, and cFCXM tests were performed with the use of commercially available negative and positive serum samples and lymphocytes from healthy donors...
April 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/28340780/development-of-a-robust-fast-screening-method-for-the-potentiometric-determination-of-iodide-in-urine-and-salt-samples
#7
Ana Machado, Raquel B R Mesquita, Sara Oliveira, Adriano A Bordalo
In this work, a potentiometric flow injection method is described for the fast bi-parametric determination of iodide and iodate in urine and salt samples. The developed methodology aimed for iodine speciation with a potentially portable system (running on batteries). The iodate reduction to iodide was effectively attained in line within the same manifold. The iodide determination was accomplished in the dynamic range of 2.50×10(-6)-1.00×10(-3)M and the total iodine dynamic range, resulted from iodide plus iodate, was 3...
May 15, 2017: Talanta
https://www.readbyqxmd.com/read/28340153/establishing-a-stand-alone-laboratory-dedicated-to-the-care-of-patients-with-ebola-virus-disease
#8
Jing Cao, Christine Senn, Pedro Castaneda, Sheree Humphries, Amy B Karger
Objective: To describe the process for establishment of a stand-alone laboratory dedicated to testing for Ebola virus disease (EVD). Methods: We selected 2 neighboring rooms for the EVD unit: 1 for patient care and 1 for laboratory testing. A limited test menu was developed after consultation with the team of healthcare providers treating patients with EVD, Centers for Disease Control and Prevention (CDC) recommendations, and other sites with EVD expertise. Results: We selected several point-of-care (POC) devices and manual assays to provide necessary testing...
March 13, 2017: Laboratory Medicine
https://www.readbyqxmd.com/read/28337294/hypoxic-preconditioning-of-human-cardiosphere-derived-cell-sheets-enhances-cellular-functions-via-activation-of-the-pi3k-akt-mtor-hif-1%C3%AE-pathway
#9
Yuya Tanaka, Tohru Hosoyama, Akihito Mikamo, Hiroshi Kurazumi, Arata Nishimoto, Koji Ueno, Bungo Shirasawa, Kimikazu Hamano
Cell sheet technology is a promising therapeutic strategy for the treatment of ischemic diseases such as myocardial infarction. We recently developed a novel protocol, termed "hypoxic preconditioning," capable of augmenting the therapeutic efficacy of cell sheets. Following this protocol, the pro-angiogenic and anti-fibrotic activity of cell sheets were enhanced by brief incubation of cell sheets under hypoxic culture conditions. However, the precise molecular mechanism underlying the hypoxic preconditioning of cell sheets is unclear...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/28337202/murine-cytomegalovirus-disrupts-splenic-dendritic-cell-subsets-via-type-i-interferon-dependent-and-independent-mechanisms
#10
William T Nash, Alyssa L Gillespie, Michael G Brown
Dendritic cells (DC) are well-known modulators of immunity. This heterogeneous population is composed of defined subsets that exhibit functional specialization and are critical in initiating responses to pathogens. As such, many infectious agents employ strategies to disrupt DC functioning in attempts to evade the immune system. In some instances, this manifests as an outright loss of these cells. Previous work has suggested that, in the absence of an efficient natural killer (NK) cell response, murine cytomegalovirus (MCMV) induces large amounts of interferon (IFN)-I...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28337076/nebulized-gentamicin-as-an-alternative-to-nebulized-tobramycin-for-tracheitis-in-pediatric-patients
#11
Justin K Chen, Brittany L Martin-McNew, Lisa M Lubsch
OBJECTIVES: Tracheitis is an infection of the lower respiratory tract and is defined by the US Centers for Disease Control and Prevention (CDC) based on signs and symptoms with no radiographic evidence of pneumonia. One method of treatment involves the use of tobramycin given by nebulizer. The purpose of this study was to compare the safety and efficacy of nebulized gentamicin with nebulized tobramycin. METHODS: This study was conducted in patients under 21 years of age who received greater than or equal to 1 day of gentamicin, 80 mg, or tobramycin, 300 mg, given twice a day by nebulization within the 14-month study period...
January 2017: Journal of Pediatric Pharmacology and Therapeutics: JPPT: the Official Journal of PPAG
https://www.readbyqxmd.com/read/28333913/tuberculosis-among-foreign-born-persons-diagnosed-%C3%A2-10-years-after-arrival-in-the-united-states-2010-2015
#12
Clarisse A Tsang, Adam J Langer, Thomas R Navin, Lori R Armstrong
The majority of tuberculosis (TB) cases in the United States are attributable to reactivation of latent TB infection (LTBI) (1). LTBI refers to the condition when a person is infected with Mycobacterium tuberculosis without signs and symptoms, or radiographic or bacteriologic evidence of TB disease. CDC and the U.S. Preventive Services Task Force (USPSTF) recommend screening populations at increased risk for LTBI, including persons who have lived in congregate settings at high risk and persons who were born in, or are former residents of countries with TB incidence ≥20 cases per 100,000 population (2-4)...
March 24, 2017: MMWR. Morbidity and Mortality Weekly Report
https://www.readbyqxmd.com/read/28333910/establishing-a-timeline-to-discontinue-routine-testing-of-asymptomatic-pregnant-women-for-zika-virus-infection-american-samoa-2016-2017
#13
W Thane Hancock, Heidi M Soeters, Susan L Hills, Ruth Link-Gelles, Mary E Evans, W Randolph Daley, Emily Piercefield, Magele Scott Anesi, Mary Aseta Mataia, Anaise M Uso, Benjamin Sili, Aifili John Tufa, Jacqueline Solaita, Elizabeth Irvin-Barnwell, Dana Meaney-Delman, Jason Wilken, Paul Weidle, Karrie-Ann E Toews, William Walker, Phillip M Talboy, William K Gallo, Nevin Krishna, Rebecca L Laws, Megan R Reynolds, Alaya Koneru, Carolyn V Gould
The first patients with laboratory-confirmed cases of Zika virus disease in American Samoa had symptom onset in January 2016 (1). In response, the American Samoa Department of Health (ASDoH) implemented mosquito control measures (1), strategies to protect pregnant women (1), syndromic surveillance based on electronic health record (EHR) reports (1), Zika virus testing of persons with one or more signs or symptoms of Zika virus disease (fever, rash, arthralgia, or conjunctivitis) (1-3), and routine testing of all asymptomatic pregnant women in accordance with CDC guidance (2,3)(...
March 24, 2017: MMWR. Morbidity and Mortality Weekly Report
https://www.readbyqxmd.com/read/28333849/autism-spectrum-disorder-in-males-with-sex-chromosome-aneuploidy-xxy-klinefelter-syndrome-xyy-and-xxyy
#14
Nicole R Tartaglia, Rebecca Wilson, Judith S Miller, Jessica Rafalko, Lisa Cordeiro, Shanlee Davis, David Hessl, Judith Ross
OBJECTIVE: Neurodevelopmental concerns in males with sex chromosome aneuploidy (SCA) (XXY/Klinefelter syndrome, XYY, XXYY) include symptoms seen in autism spectrum disorder (ASD), such as language impairments and social difficulties. We aimed to: (1) evaluate ASD characteristics in research cohorts of SCA males under DSM-IV compared to DSM-5 criteria, and (2) analyze factors associated with ASD diagnoses in SCA. METHODS: Evaluation of participants with XXY/KS (n=20), XYY (n=57) and XXYY (n=21) included medical history, cognitive/adaptive testing, Social Communication Questionnaire, Social Responsiveness Scale, Autism Diagnostic Observation Schedule, Autism Diagnostic Interview-Revised, and DSM ASD criteria...
March 21, 2017: Journal of Developmental and Behavioral Pediatrics: JDBP
https://www.readbyqxmd.com/read/28330867/influenza-vaccines-differentially-regulate-the-interferon-response-in-human-dendritic-cell-subsets
#15
Shruti Athale, Romain Banchereau, LuAnn Thompson-Snipes, Yuanyuan Wang, Karolina Palucka, Virginia Pascual, Jacques Banchereau
Human dendritic cells (DCs) play a fundamental role in the initiation of long-term adaptive immunity during vaccination against influenza. Understanding the early response of human DCs to vaccine exposure is thus essential to determine the nature and magnitude of maturation signals that have been shown to strongly correlate with vaccine effectiveness. In 2009, the H1N1 influenza epidemics fostered the commercialization of the nonadjuvanted monovalent H1N1 California vaccine (MIV-09) to complement the existing nonadjuvanted trivalent Fluzone 2009-2010 vaccine (TIV-09)...
March 22, 2017: Science Translational Medicine
https://www.readbyqxmd.com/read/28330741/intermediate-steroid-withdrawal-after-renal-transplantation-and-anti-hla-antibodies-hla-abs-development
#16
Elena Monfá, David San Segundo, Juan Carlos Ruiz San Millán, Judith Sanabria, Zoila Albines, Emilio Rodrigo, Iñigo Romón, Esther Asensio, Manuel Arias, Marcos López-Hoyos
INTRODUCTION: Steroid withdrawal in renal transplantation is desirable to avoid their adverse effects. However, by decreasing the immunosuppression, could lead to an increased risk for the development of HLA-Abs. OBJECTIVE: Evaluate the relationship between steroid withdrawal and development of HLA-Abs in renal transplantation. METHODS: We analyzed sera by Luminex from 182 kidney transplants performed from 1998 to 2011, before and two years after transplantation...
March 19, 2017: Nefrología: Publicación Oficial de la Sociedad Española Nefrologia
https://www.readbyqxmd.com/read/28330513/identifying-and-prioritizing-information-needs-and-research-priorities-of-public-health-emergency-preparedness-and-response-practitioners
#17
Alexa L Siegfried, Eric G Carbone, Michael B Meit, Mallory J Kennedy, Hussain Yusuf, Emily B Kahn
OBJECTIVE: This study describes findings from an assessment conducted to identify perceived knowledge gaps, information needs, and research priorities among state, territorial, and local public health preparedness directors and coordinators related to public health emergency preparedness and response (PHPR). The goal of the study was to gather information that would be useful for ensuring that future funding for research and evaluation targets areas most critical for advancing public health practice...
March 23, 2017: Disaster Medicine and Public Health Preparedness
https://www.readbyqxmd.com/read/28329707/dendritic-cells-display-subset-and-tissue-specific-maturation-dynamics-over-human-life
#18
Tomer Granot, Takashi Senda, Dustin J Carpenter, Nobuhide Matsuoka, Joshua Weiner, Claire L Gordon, Michelle Miron, Brahma V Kumar, Adam Griesemer, Siu-Hong Ho, Harvey Lerner, Joseph J C Thome, Thomas Connors, Boris Reizis, Donna L Farber
Maturation and migration to lymph nodes (LNs) constitutes a central paradigm in conventional dendritic cell (cDC) biology but remains poorly defined in humans. Using our organ donor tissue resource, we analyzed cDC subset distribution, maturation, and migration in mucosal tissues (lungs, intestines), associated lymph nodes (LNs), and other lymphoid sites from 78 individuals ranging from less than 1 year to 93 years of age. The distribution of cDC1 (CD141(hi)CD13(hi)) and cDC2 (Sirp-α(+)CD1c(+)) subsets was a function of tissue site and was conserved between donors...
March 21, 2017: Immunity
https://www.readbyqxmd.com/read/28329481/cutaneous-leishmaniasis-mimicking-squamous-cell-carcinoma
#19
Tara Oetken, Bryan Hiscox, Ida Orengo, Theodore Rosen
A 41-year-old man from Cuero, Texas with a nonhealinglesion on his left cheek was referred to ourclinic for removal of a squamous cell carcinoma. Thepatient first noticed a "pimple" on his left cheek 3-4months prior to presentation. When the lesion beganto grow he presented to his primary care physician anda biopsy was taken, showing "atypical squamous cellproliferation." Mohs surgery was performed and thenodule was removed with no evidence of malignancyseen on histopathology. Upon review of the surgicalbiopsies by consulting pathologists, the diagnosis ofleishmaniasis was established and later confirmed bythe Center for Disease Control and Prevention (CDC)as Leishmania mexicana...
January 15, 2017: Dermatology Online Journal
https://www.readbyqxmd.com/read/28329304/cystic-fibrosis-pulmonary-exacerbations-attributable-to-respiratory-syncytial-virus-and-influenza-a-population-based-study
#20
Ranjani Somayaji, Christopher H Goss, Umer Khan, Moni Neradilek, Kathleen M Neuzil, Justin R Ortiz
Background: Characterization of the role of respiratory viral pathogens on cystic fibrosis (CF) pulmonary disease is needed. We aimed to determine the association of influenza and respiratory syncytial virus (RSV) activity with risk of pulmonary exacerbation (PEx) in persons with CF in the United States. Methods: We conducted a cohort study from January 2003 - March 2009 using the CF Foundation Patient Registry merged with CDC respiratory virus surveillance data...
March 9, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
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