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https://www.readbyqxmd.com/read/28808685/structure-of-a-1-5-mda-adhesin-that-binds-its-antarctic-bacterium-to-diatoms-and-ice
#1
Shuaiqi Guo, Corey A Stevens, Tyler D R Vance, Luuk L C Olijve, Laurie A Graham, Robert L Campbell, Saeed R Yazdi, Carlos Escobedo, Maya Bar-Dolev, Victor Yashunsky, Ido Braslavsky, David N Langelaan, Steven P Smith, John S Allingham, Ilja K Voets, Peter L Davies
Bacterial adhesins are modular cell-surface proteins that mediate adherence to other cells, surfaces, and ligands. The Antarctic bacterium Marinomonas primoryensis uses a 1.5-MDa adhesin comprising over 130 domains to position it on ice at the top of the water column for better access to oxygen and nutrients. We have reconstructed this 0.6-μm-long adhesin using a "dissect and build" structural biology approach and have established complementary roles for its five distinct regions. Domains in region I (RI) tether the adhesin to the type I secretion machinery in the periplasm of the bacterium and pass it through the outer membrane...
August 2017: Science Advances
https://www.readbyqxmd.com/read/28790200/chromosome-end-repair-and-genome-stability-in-plasmodium-falciparum
#2
Susannah F Calhoun, Jake Reed, Noah Alexander, Christopher E Mason, Kirk W Deitsch, Laura A Kirkman
The human malaria parasite Plasmodium falciparum replicates within circulating red blood cells, where it is subjected to conditions that frequently cause DNA damage. The repair of DNA double-stranded breaks (DSBs) is thought to rely almost exclusively on homologous recombination (HR), due to a lack of efficient nonhomologous end joining. However, given that the parasite is haploid during this stage of its life cycle, the mechanisms involved in maintaining genome stability are poorly understood. Of particular interest are the subtelomeric regions of the chromosomes, which contain the majority of the multicopy variant antigen-encoding genes responsible for virulence and disease severity...
August 8, 2017: MBio
https://www.readbyqxmd.com/read/28780738/john-p-craig-md-mph-physician-scientist-educator-and-mentor-1923-2016
#3
M A Haseeb, Pascal James Imperato
John P. Craig (1923-2016) was an eminent physician-scientist, gifted educator, and greatly valued mentor. Born in West Liberty, Ohio on 29 November 1923, he attended Oberlin College, and received his medical degree from Case Western Reserve University, School of Medicine. This was followed by an internship at Yale University Medical Center, and then service in the U.S. Army during the Korean War. He was a battalion surgeon, preventive medicine officer, and epidemiologist. While in Korea, he conducted important investigations of hemorrhagic fever among American troops...
August 5, 2017: Journal of Community Health
https://www.readbyqxmd.com/read/28768904/mapping-the-clinical-outcomes-and-genetic-evolution-of-ebola-virus-in-sierra-leone
#4
Tao Li, Hong-Wu Yao, Di Liu, Hong-Guang Ren, Yi Hu, David Kargbo, Yue Teng, Yong-Qiang Deng, Hui-Jun Lu, Xiong Liu, Kun Liu, Li-Qun Fang, Nian-Zhi Ning, Gary Wong, Foday Dafae, Abdul Kamara, AiPing Wu, Tai-Jiao Jiang, Zhan Li, Jie Huang, Yu Sun, Jun Qian, Brima Kargbo, Jia-Fu Jiang, Hui Wang, Wu-Chun Cao
Sierra Leone was the most severely affected country in Western Africa during the 2013-2016 outbreak of Ebola virus disease (EVD). Previous genome surveillance studies have revealed the origin, diversity, and evolutionary dynamics of the Ebola virus (EBOV); however, the information regarding EBOV sequences is insufficient, especially the clinical outcomes, given that the correlation between the clinical outcomes and the genetic evolution of EBOV is still not clear. Here, we collected and curated a comprehensive data set that includes 514 EBOV genome sequences from patients with confirmed EVD (including 60 sequences not previously studied), >87...
August 3, 2017: JCI Insight
https://www.readbyqxmd.com/read/28744024/recent-increased-identification-and-transmission-of-hiv-1-unique-recombinant-forms-in-sweden
#5
Ujjwal Neogi, Abu Bakar Siddik, Prabhav Kalaghatgi, Magnus Gisslén, Göran Bratt, Gaetano Marrone, Anders Sönnerborg
A temporal increase in non-B subtypes has earlier been described in Sweden by us and we hypothesized that this increased viral heterogeneity may become a hotspot for the development of more complex and unique recombinant forms (URFs) if the epidemics converge. In the present study, we performed subtyping using four automated tools and phylogenetic analysis by RAxML of pol gene sequences (n = 5246) and HIV-1 near full-length genome (HIV-NFLG) sequences (n = 104). A CD4(+) T-cell decline trajectory algorithm was used to estimate time of HIV infection...
July 25, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28738888/genetic-characterization-of-11-porcine-reproductive-and-respiratory-syndrome-virus-isolates-in-south-china-from-2014-to-2015
#6
Linyang Yu, Pandeng Zhao, Jianguo Dong, Yanling Liu, Leyi Zhang, Pengshuai Liang, Lei Wang, Changxu Song
BACKGROUND: Porcine reproductive and respiratory syndrome (PRRS) has leaded to an enormous loss per year to the swine industry, its etiology porcine reproductive and respiratory syndrome virus (PRRSV) is a highly mutated virus in pigs. To fully understand the genetic characteristics of PRRSV genome in South China, this study collected the lung samples infected with PRRSV in Guangdong and Hainan province from 2014 to 2015 and tried to isolate the PRRSV. Finally, the complete genomes of isolated strains were sequenced and analyzed...
July 24, 2017: Virology Journal
https://www.readbyqxmd.com/read/28736507/national-mortality-burden-due-to-communicable-non-communicable-and-other-diseases-in-ethiopia-1990-2015-findings-from-the-global-burden-of-disease-study-2015
#7
Awoke Misganaw, Tilahun N Haregu, Kebede Deribe, Gizachew Assefa Tessema, Amare Deribew, Yohannes Adama Melaku, Azmeraw T Amare, Semaw Ferede Abera, Molla Gedefaw, Muluken Dessalegn, Yihunie Lakew, Tolesa Bekele, Mesoud Mohammed, Biruck Desalegn Yirsaw, Solomon Abrha Damtew, Kristopher J Krohn, Tom Achoki, Jed Blore, Yibeltal Assefa, Mohsen Naghavi
BACKGROUND: Ethiopia lacks a complete vital registration system that would assist in measuring disease burden and risk factors. We used the Global Burden of Diseases, Injuries, and Risk Factors Study 2015 (GBD 2015) estimates to describe the mortality burden from communicable, non-communicable, and other diseases in Ethiopia over the last 25 years. METHODS: GBD 2015 mainly used cause of death ensemble modeling to measure causes of death by age, sex, and year for 195 countries...
2017: Population Health Metrics
https://www.readbyqxmd.com/read/28732536/national-mortality-burden-due-to-communicable-non-communicable-and-other-diseases-in-ethiopia-1990-2015-findings-from-the-global-burden-of-disease-study-2015
#8
Awoke Misganaw, Tilahun N Haregu, Kebede Deribe, Gizachew Assefa Tessema, Amare Deribew, Yohannes Adama Melaku, Azmeraw T Amare, Semaw Ferede Abera, Molla Gedefaw, Muluken Dessalegn, Yihunie Lakew, Tolesa Bekele, Mesoud Mohammed, Biruck Desalegn Yirsaw, Solomon Abrha Damtew, Kristopher J Krohn, Tom Achoki, Jed Blore, Yibeltal Assefa, Mohsen Naghavi
BACKGROUND: Ethiopia lacks a complete vital registration system that would assist in measuring disease burden and risk factors. We used the Global Burden of Diseases, Injuries, and Risk Factors Study 2015 (GBD 2015) estimates to describe the mortality burden from communicable, non-communicable, and other diseases in Ethiopia over the last 25 years. METHODS: GBD 2015 mainly used cause of death ensemble modeling to measure causes of death by age, sex, and year for 195 countries...
July 21, 2017: Population Health Metrics
https://www.readbyqxmd.com/read/28730644/fungiscope-%C3%A2-global-emerging-fungal-infection-registry
#9
Danila Seidel, Luisa A Durán Graeff, Maria J G T Vehreschild, Hilmar Wisplinghoff, Maren Ziegler, J Janne Vehreschild, Blasius Liss, Axel Hamprecht, Philipp Köhler, Zdenek Racil, Nikolay Klimko, Donald C Sheppard, Raoul Herbrecht, Anuradha Chowdhary, Oliver A Cornely, FungiScope Group
Rare invasive fungal diseases (IFD) are challenging for the treating physicians because of their unspecific clinical presentation, as well as the lack of standardised diagnostic and effective treatment strategies. Late onset of treatment and inappropriate medication is associated with high mortality, thus, urging the need for a better understanding of these diseases. The purpose of FungiScope(™) is to continuously collect clinical information and specimens to improve the knowledge on epidemiology and eventually improve patient management of these orphan diseases...
August 2017: Mycoses
https://www.readbyqxmd.com/read/28729231/cernunnos-deficiency-associated-with-bcg-adenitis-and-autoimmunity-first-case-from-the-national-iranian-registry-and-review-of-the-literature
#10
Reza Yazdani, Hassan Abolhassani, Javad Tafaroji, Gholamreza Azizi, Raif S Geha, Asghar Aghamohammadi
Non-homologous end-joining (NHEJ) is a pathway that repairs double-strand breaks (DSB) in DNA and plays a vital role in V(D)J recombination of immunoglobulin genes. Cernunnos is a DNA repair factor that is involved in nonhomologous end-joining (NHEJ) process. Impairment in Cernunnos leads to a genetic disease characterized by neural disorders, immunodeficiency and increased radiosensitivity. We herein describe a severe combined immunodeficiency (SCID) patient with T- B+ phenotype who had a mutation in Cernunnos gene and manifested recurrent infections, microcephaly and growth retardation with hypogammaglobulinemia...
July 17, 2017: Clinical Immunology: the Official Journal of the Clinical Immunology Society
https://www.readbyqxmd.com/read/28720153/molecular-characterization-of-moniezia-sichuanensis-in-captive-musk-deer-moschus-berezovskii
#11
J Xu, H Lin, J Chen, Y Cai, W Fu, H Wang, X Gu, W Lai, X Peng, G Yang
The musk deer (Moschus berezovskii) is an economically important species from which musk is extracted and used in perfumes and medicines. Cestodes (parasitic flatworms) of the genus Moniezia are important parasites that infect this endangered species and can cause high mortality in young deer. In 1982, Moniezia (S.) sichuanensis sp. nov. was described from a specimen obtained from wild musk deer. The new species was distinct from the other described species of Moniezia by the sawtooth-shaped interproglottidal glands, the thick vagina and the absence of a cirrus spine...
July 19, 2017: Journal of Helminthology
https://www.readbyqxmd.com/read/28715055/risk-of-surgical-site-infections-following-hip-and-knee-arthroplasty-results-of-the-ischia-gisio-study
#12
A Agodi, F Auxilia, M Barchitta, M L Cristina, D D'Alessandro, I Mura, M Nobile, C Pasquarella, Gisio Gisio-SItI
BACKGROUND: Surgical Site Infection (SSI) is one of the major complications following insertion of hip or knee prosthesis. The aim of the present study was to describe rates of SSIs and associated risk factors during hip and knee prosthesis procedures in Italian hospitals. METHODS: Italian hospitals were invited to join the ISChIA (Surgical Site Infections in Arthroplasty Surgery) project and participated in the study on a voluntary basis. SSI surveillance was performed according to the Hospitals in Europe Link for Infection Control through Surveillance (HELICS) -SSI protocol...
September 2017: Annali di Igiene: Medicina Preventiva e di Comunità
https://www.readbyqxmd.com/read/28714877/alternative-pre-mrna-splicing-in-mammals-and-teleost-fish-a-effective-strategy-for-the-regulation-of-immune-responses-against-pathogen-infection
#13
REVIEW
Ming Xian Chang, Jie Zhang
Pre-mRNA splicing is the process by which introns are removed and the protein coding elements assembled into mature mRNAs. Alternative pre-mRNA splicing provides an important source of transcriptome and proteome complexity through selectively joining different coding elements to form mRNAs, which encode proteins with similar or distinct functions. In mammals, previous studies have shown the role of alternative splicing in regulating the function of the immune system, especially in the regulation of T-cell activation and function...
July 15, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28704653/double-the-trouble-when-herpesviruses-join-hands
#14
Un Yung Choi, Angela Park, Jae U Jung
KSHV is the etiologic agent of PEL-an aggressive lymphoma. Interestingly, EBV concurrently exists in nearly 70% of PEL cases. In this issue of Cell Host & Microbe, McHugh et al. (2017) develop humanized mouse models for EBV/KSHV co-infection and identify their complementary effect on in vivo tumor formation.
July 12, 2017: Cell Host & Microbe
https://www.readbyqxmd.com/read/28699562/which-green-way-description-of-the-intervention-for-mobilising-against-aedes-aegypti-under-difficult-security-conditions-in-southern-mexico
#15
REVIEW
Arcadio Morales-Perez, Elizabeth Nava-Aguilera, José Legorreta-Soberanis, Sergio Paredes-Solís, Alejandro Balanzar-Martínez, Felipe René Serrano-de Los Santos, Claudia Erika Ríos-Rivera, Jaime García-Leyva, Robert J Ledogar, Anne Cockcroft, Neil Andersson
BACKGROUND: Community mobilisation for prevention requires engagement with and buy in from those communities. In the Mexico state of Guerrero, unprecedented social violence related to the narcotics trade has eroded most community structures. A recent randomised controlled trial in 90 coastal communities achieved sufficient mobilisation to reduce conventional vector density indicators, self-reported dengue illness and serologically proved dengue virus infection. METHODS: The Camino Verde intervention was a participatory research protocol promoting local discussion of baseline evidence and co-design of vector control solutions...
May 30, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28696877/multicenter-quality-improvement-project-to-prevent-sternal-wound-infections-in-pediatric-cardiac-surgery-patients
#16
Cathy Woodward, Richard Taylor, Minnette Son, Roozbeh Taeed, Marshall L Jacobs, Lauren Kane, Jeffrey P Jacobs, S Adil Husain
BACKGROUND: Children undergoing cardiac surgery are at risk for sternal wound infections (SWIs) leading to increased morbidity and mortality. Single-center quality improvement (QI) initiatives have demonstrated decreased infection rates utilizing a bundled approach. This multicenter project was designed to assess the efficacy of a protocolized approach to decrease SWI. METHODS: Pediatric cardiac programs joined a collaborative effort to prevent SWI. Programs implemented the protocol, collected compliance data, and provided data points from local clinical registries using Society of Thoracic Surgery Congenital Heart Surgery Database harvest-compliant software or from other registries...
July 2017: World Journal for Pediatric & Congenital Heart Surgery
https://www.readbyqxmd.com/read/28681400/epidemiological-trends-of-hiv-1-infection-in-blood-donors-from-catalonia-spain-2005-2014
#17
Marta Bes, Maria Piron, Natàlia Casamitjana, Josep Gregori, Juan Ignacio Esteban, Esteban Ribera, Josep Quer, Lluís Puig, Sílvia Sauleda
BACKGROUND: Human immunodeficiency virus 1 (HIV-1) subtype B is predominant in Spain. However, the recent arrival of immigrant populations has increased the prevalence of non-B subtypes and circulating recombinant forms. The objective of this study was to determine the prevalence of HIV-1 subtypes and transmitted drug-resistance mutations in blood donors from the Catalonian region (northeastern Spain). STUDY DESIGN AND METHODS: HIV-1-positive blood donors identified in Catalonia from 2005 to 2014 were included...
July 5, 2017: Transfusion
https://www.readbyqxmd.com/read/28676037/challenges-and-outcomes-of-haemodialysis-among-patients-presenting-with-kidney-diseases-in-dodoma-tanzania
#18
Alfred J Meremo, David P Ngilangwa, Masumbuko Y Mwashambwa, Matobogolo B Masalu, Janet Kapinga, Rehema Tagalile, Issa Sabi
BACKGROUND: Kidney Diseases contribute a significant proportion to the global burden of non-communicable diseases. Haemodialysis services as the main modality of renal replacement therapy in most resource limited countries is only available in few cities and at higher costs. The aim of this study was to determine the challenges and outcomes of patients who were on haemodialysis at the University of Dodoma (UDOM) haemodialysis unit in Tanzania. METHODS: In this retrospective study; we reviewed haemodialysis registers and charts of 116 patients dialyzed from January 2013 to June 2015 at The UDOM haemodialysis unit...
July 4, 2017: BMC Nephrology
https://www.readbyqxmd.com/read/28674944/a-functional-genomics-approach-to-henipavirus-research-the-role-of-nuclear-proteins-micrornas-and-immune-regulators-in-infection-and-disease
#19
Cameron R Stewart, Celine Deffrasnes, Chwan Hong Foo, Andrew G D Bean, Lin-Fa Wang
Hendra and Nipah viruses (family Paramyxoviridae, genus Henipavirus) are zoonotic RNA viruses that cause lethal disease in humans and are designated as Biosafety Level 4 (BSL4) agents. Moreover, henipaviruses belong to the same group of viruses that cause disease more commonly in humans such as measles, mumps and respiratory syncytial virus. Due to the relatively recent emergence of the henipaviruses and the practical constraints of performing functional genomics studies at high levels of containment, our understanding of the henipavirus infection cycle is incomplete...
July 4, 2017: Current Topics in Microbiology and Immunology
https://www.readbyqxmd.com/read/28664569/development-and-assessment-of-a-new-cage-like-particle-adjuvant
#20
Daiana Bertona, Nazarena Pujato, Iván Bontempi, Verónica Gonzalez, Gabriel Cabrera, Luis Gugliotta, Daniela Hozbor, Alcides Nicastro, Luis Calvinho, Iván Sergio Marcipar
OBJECTIVES: To obtain and assess stable cage-like particles with low surface charge density, which can be prepared using a standardized, economic and scalable method. METHODS: To form these nanoparticles, the lipid composition and proportion as well the method were modified in relation to cage-like particles previously described elsewhere. Bovine albumin was used to compare ISPA performance with that of other adjuvants in mice and to assess stability. Adjuvant efficacy was analysed using a mouse model of Trypanosoma cruzi infection, which shows protection against an intracellular infection that needs a strong cellular response...
June 30, 2017: Journal of Pharmacy and Pharmacology
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