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https://www.readbyqxmd.com/read/27911718/attacking-hiv-1-rna-versus-dna-by-sequence-specific-approaches-rnai-versus-crispr-cas
#1
REVIEW
Elena Herrera-Carrillo, Ben Berkhout
Human immunodeficiency virus type 1 (HIV-1) infection can be effectively controlled by potent antiviral drugs, but this never results in a cure. The patient should therefore take these drugs for the rest of his/her life, which can cause drug-resistance and adverse effects. Therefore, more durable therapeutic strategies should be considered, such as a stable gene therapy to protect the target T cells against HIV-1 infection. The development of potent therapeutic regimens based on the RNA interference (RNAi) and clustered regularly interspaced short palindromic repeats (CRISPR-Cas) mechanisms will be described, which can be delivered by lentiviral vectors...
October 15, 2016: Biochemical Society Transactions
https://www.readbyqxmd.com/read/27904467/isolation-and-characterization-of-a-bacteriophage-preying-an-antifungal-bacterium
#2
Aryan Rahimi-Midani, Kyoung-Ho Kim, Seon-Woo Lee, Sang Bong Jung, Tae-Jin Choi
Several Bacillus species were isolated from rice field soils, and 16S rRNA gene sequence analysis showed that Bacillus cereus was the most abundant. A strain named BC1 showed antifungal activity against Rhizoctonia solani. Bacteriophages infecting strain BC1 were isolated from the same soil sample. The isolated phage PK16 had an icosahedral head of 100 ± 5 nm and tail of 200 ± 5 nm, indicating that it belonged to the family Myoviridae. Analysis of the complete linear dsDNA genome revealed a 158,127-bp genome with G + C content of 39...
December 2016: Plant Pathology Journal
https://www.readbyqxmd.com/read/27898181/endovenous-ablation-therapy-laser-or-radiofrequency-or-foam-sclerotherapy-versus-conventional-surgical-repair-for-short-saphenous-varicose-veins
#3
REVIEW
Sharath Chandra Vikram Paravastu, Margaret Horne, P Dominic F Dodd
BACKGROUND: Short (or small) saphenous vein (SSV) varices occur as a result of an incompetent sapheno-popliteal junction, where the SSV joins the popliteal vein, resulting in reflux in the SSV; they account for about 15% of varicose veins. Untreated varicose veins may sometimes lead to ulceration of the leg, which is difficult to manage. Traditionally, treatment was restricted to surgery or conservative management. Since the 1990s, however, a number of minimally invasive techniques have been developed; these do not normally require a general anaesthetic, are day-case procedures with a quicker return to normal activities and avoid the risk of wound infection which may occur following surgery...
November 29, 2016: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/27897967/an-observational-study-of-donor-ex-vivo-lung-perfusion-in-uk-lung-transplantation-develop-uk
#4
Andrew Fisher, Anders Andreasson, Alexandros Chrysos, Joanne Lally, Chrysovalanto Mamasoula, Catherine Exley, Jennifer Wilkinson, Jessica Qian, Gillian Watson, Oli Lewington, Thomas Chadwick, Elaine McColl, Mark Pearce, Kay Mann, Nicola McMeekin, Luke Vale, Steven Tsui, Nizar Yonan, Andre Simon, Nandor Marczin, Jorge Mascaro, John Dark
BACKGROUND: Many patients awaiting lung transplantation die before a donor organ becomes available. Ex vivo lung perfusion (EVLP) allows initially unusable donor lungs to be assessed and reconditioned for clinical use. OBJECTIVE: The objective of the Donor Ex Vivo Lung Perfusion in UK lung transplantation study was to evaluate the clinical effectiveness and cost-effectiveness of EVLP in increasing UK lung transplant activity. DESIGN: A multicentre, unblinded, non-randomised, non-inferiority observational study to compare transplant outcomes between EVLP-assessed and standard donor lungs...
November 2016: Health Technology Assessment: HTA
https://www.readbyqxmd.com/read/27894990/microevolutionary-analyses-of-pythium-insidiosum-isolates-of-brazil-and-thailand-based-on-exo-1-3-%C3%AE-glucanase-gene
#5
Tatiana Corrêa Ribeiro, Carla Weiblen, Maria Isabel de Azevedo, Sônia de Avila Botton, Lizandra Jaqueline Robe, Daniela Isabel Brayer Pereira, Danieli Urach Monteiro, Douglas Miotto Lorensetti, Janio Morais Santurio
Pythium insidiosum is an important oomycete due to its ability to infect humans and animals. It causes pythiosis, a disease of difficult treatment that occurs more frequently in humans in Thailand and in horses in Brazil. Since cell-wall components are frequently related to host shifts, we decided here to use sequences from the exo-1.3-β-glucanase gene (exo1), which encodes an immunodominant protein putatively involved in cell wall remodeling, to investigate the microevolutionary relationships of Brazilian and Thai isolates of P...
November 25, 2016: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/27887624/detection-and-phylogenetic-analysis-of-porcine-epidemic-diarrhea-virus-in-central-china-based-on-the-orf3-gene-and-the-s1-gene
#6
Yunfang Su, Yunchao Liu, Yumei Chen, Baolei Zhao, Pengchao Ji, Guangxu Xing, Dawei Jiang, Chang Liu, Yapeng Song, Guoqiang Wang, Dongliang Li, Ruiguang Deng, Gaiping Zhang
BACKGROUND: Porcine epidemic diarrhea (PED) has increased in severity in China since 2010. To investigate further the infectivity, genetic diversity and molecular epidemiology of its causative agent, the porcine epidemic diarrhea virus (PEDV), we assessed 129 clinical samples, which were the intestinal tissue of piglets with severe diarrhea, from 17 cities in central China. Both the spike (S) glycoprotein (S1, 1-789 amino acids (aa)) and the full-length ORF3 gene of 21 representative field strains from 21 farms in 11 cities were sequenced and analysed...
November 25, 2016: Virology Journal
https://www.readbyqxmd.com/read/27886229/expanding-and-exploring-the-diversity-of-phytoplasmas-from-lucerne-medicago-sativa
#7
David Gopurenko, Murray J Fletcher, Jian Liu, Geoff M Gurr
Phytoplasmas are a group of insect-vectored bacteria responsible for disease in many plant species worldwide. Among the crop species affected is the economically valuable forage species lucerne. Here we provide comprehensive molecular evidence for infection in multiple lucerne plants by a phytoplasma not previously known from this plant species. This phytoplasma had a >99% genetic similarity to an unclassified 16S rRNA subgroup previously reported as Stylosanthes little leaf from Stylosanthes spp. and was genetically and symptomatically distinct from a co-occurring but less common 16SrIIA group phytoplasma...
November 25, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27885463/molecular-and-morphological-descriptions-of-ceratomyxa-collarae-n-sp-and-ceratomyxa-leucosternoni-n-sp-from-marine-ornamental-fishes-of-indian-waters
#8
N K Sanil, Archana Chandran, P Shamal, C P Binesh
Two novel species of Ceratomyxa infecting marine ornamental fishes from Indian waters are described. Marine ornamentals, Chaetodon collare and Chaetodon decussatus, collected from Vizhinjam, along the southwest coast of India and Acanthurus leucosternon collected from Lakshadweep islands of Arabian Sea revealed Ceratomyxa infections in their gall bladders. Mature spores of Ceratomyxa from Chaetodon collare and Chaetodon decussatus were elongate and slightly crescentic, with rounded ends, and measured 5.20 ± 0...
November 24, 2016: Parasitology Research
https://www.readbyqxmd.com/read/27882682/prevalence-of-equine-hepacivirus-infections-in-france-and-evidence-for-two-viral-subtypes-circulating-worldwide
#9
S Pronost, E Hue, C Fortier, M Foursin, G Fortier, F Desbrosse, F A Rey, P-H Pitel, E Richard, B Saunier
Like hepatitis C virus (HCV) in humans, the newly identified equine hepacivirus (NPHV) displays a predominating liver tropism that may evolve into chronic infections. The genomes of the two viruses share several organizational and functional features and are phylogenetically closest amongst the Hepacivirus genus. A limited amount of data is available regarding the spread of hepacivirus infections in horses. In this study, we asked whether in a more representative sample the prevalence and distribution of NPHV infections in France would resemble that reported so far in other countries...
November 24, 2016: Transboundary and Emerging Diseases
https://www.readbyqxmd.com/read/27876276/piperacillin-tazobactam-as-an-alternative-antibiotic-therapy-to-carbapenems-in-the-treatment-of-urinary-tract-infections-due-to-extended-spectrum-%C3%AE-lactamase-producing-enterobacteriaceae-an-in-silico-pharmacokinetic-study
#10
Hélène Guet-Revillet, Elise Tomini, Aurélie Emirian, Olivier Join-Lambert, Hervé Lécuyer, Jean-Ralph Zahar, Vincent Jullien
Piperacillin/tazobactam (TZP) as an alternative treatment to carbapenems for infections involving extended-spectrum β-lactamase (ESBL)-producing Enterobacteriaceae (ESBL-PE) remains debated. In this study, the probabilities of pharmacodynamic (PD) target attainment with different TZP regimens in ESBL-producing Escherichia coli (ESBL-Ec) and Klebsiella pneumoniae (ESBL-Kp) were evaluated in the context of pyelonephritis. Minimum inhibitory concentrations (MICs) of 144 ESBL-Ec and 111 ESBL-Kp from pyelonephritis were measured, and two previously published population pharmacokinetic models were used to determine by Monte Carlo simulation the probabilities of reaching two PD targets (50%fT>MIC and 100%fT>MIC) with TZP doses of 4 g three times daily and 4...
November 15, 2016: International Journal of Antimicrobial Agents
https://www.readbyqxmd.com/read/27873275/terminal-repeat-analysis-of-ebv-genomes
#11
Ferenc Bánáti, Anita Koroknai, Kálmán Szenthe
Epstein-Barr virus (EBV) was the first human virus associated directly with human malignancies. During EBV infection of various host cells the double-stranded linear EBV DNA carried by the virions undergoes circularization. Since there are variable numbers of terminal repetitions (TRs) at the ends of the linear EBV genome, the resulting circular episomes enclose a variable number of TRs. Thus, in cells carrying viral episomes, the sizes of the terminal restriction enzyme fragments of EBV is affected by the number of TRs (Raab-Traub and Flynn Cell 47:883-889, 1986)...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/27868099/endourologic-and-open-ureterolithotomy-and-common-sheath-reimplant-for-large-bladder-and-distal-ureteral-calculi
#12
Madeline Cancian, Joseph Brito, Joseph Renzulli, Gyan Pareek
A twenty-eight-year-old female with a history of suprapubic pain and recurrent urinary tract infections presents for urology referral with a kidney, ureter, and bladder radiograph showing a 4.4 cm bladder calculus and 6.5 cm distal left ureteral stone. She underwent effective cystolitholapaxy of the bladder stone. Endourologic attempt (left ureteroscopy) was unsuccessful because of ureteral stone burden. Findings at ureteroscopy revealed a duplicated system on the left with the lower pole moiety joining just proximal to the ureteral orifice...
2016: Journal of Endourology Case Reports
https://www.readbyqxmd.com/read/27864517/an-extensive-burden-of-giardiasis-associated-with-intestinal-schistosomiasis-and-anaemia-in-school-children-on-the-shoreline-of-lake-albert-uganda
#13
Hajri Al-Shehri, Michelle C Stanton, James E LaCourse, Aaron Atuhaire, Moses Arinaitwe, Aida Wamboko, Moses Adriko, Narcis B Kabatereine, J Russell Stothard
BACKGROUND: Water-borne parasitic diseases associated with poverty still blight the lives of African school children. In Uganda, intestinal schistosomiasis is still common along the shoreline of Lake Albert, despite ongoing control, and co-infection with giardiasis and malaria is poorly described. To shed light on putative interactions between diseases, a prospective cross-sectional parasitological survey was undertaken in five primary schools. METHODS: Stool samples from 254 school children, aged 5-10 years, were examined by microscopy and rapid diagnostic tests (RDTs), with additional real-time PCR assays for detection of Giardia DNA...
November 17, 2016: Transactions of the Royal Society of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/27842760/-laparoscopic-ureterovesical-repair-for-megaureter-treatment
#14
Sergio Landa-Juárez, Alejandra Guerra-Rivas, Ramón Salgado-Sangri, Ana María Castillo-Fernandez, Hermilo de la Cruz-Yañez, Carlos Garcia-Hernandez
BACKGROUND: An alternative treatment for obstructive and refluxing obstructive megaureter with ureterovesical junction maintenance through laparoscopy is proposed. MATERIAL AND METHODS: The series consists of 8 cases, all of them studied because of prenatal hydronephrosis or febrile urinary tract infection. Seven were diagnosed with obstructive megaureter and one with obstructive refluxing megaureter. The procedure consisted in incising the stenotic portion of the ureter longitudinally and maintaining its posterior wall attached to the bladder, the anterior wall of the ureter was anastomosed transversally to the bladder mucosa in order to liberate the obstruction...
November 11, 2016: Cirugia y Cirujanos
https://www.readbyqxmd.com/read/27825779/glutamine-is-required-for-red-spotted-grouper-nervous-necrosis-virus-replication-via-replenishing-the-tricarboxylic-acid-cycle
#15
Muhammad Asim, Sanjie Jiang, Lizhu Yi, Wenjie Chen, Lindan Sun, Lijuan Zhao, Muhammad Nasir Khan Khattak, Jiagang Tu, Li Lin
Glutamine, one of the most important nutrients, plays a vital role in carbon metabolic pathway and has been reported to be required for the replication of several human DNA viruses. However, whether glutamine is required for RNA virus replication and the related mechanism remains elusive. Nervous necrosis virus (NNV), a positive-stranded RNA virus, can infect a number of important aquatic species and has caused great economic losses in aquaculture industry worldwide. In this study, the effects of glutamine on red-spotted grouper nervous necrosis virus (RGNNV) replication were investigated...
January 2, 2017: Virus Research
https://www.readbyqxmd.com/read/27819541/spatial-and-temporal-pattern-analyses-of-esca-grapevine-disease-in-vineyards-in-france
#16
S Li, F Bonneu, J Chadoeuf, D Picart, A Gégout-Petit, L Guérin-Dubrana
To assess the capacity of esca to spread within vineyards of the Bordeaux region, over 8 years of annual records, containing between 1,200 and 2,300 contiguous Cabernet Sauvignon vines from 15 mature vineyards, were used for spatial statistical analyses. A group of nonparametric tests, based on join count statistics and on permutation methods, was developed to characterize the spatial structure of esca-symptomatic vines in terms of spread in any direction or within-row only. Among vineyards, a large range of spatial patterns, from random to strongly structured, associated with various prevalence rates that increased over time were observed...
November 7, 2016: Phytopathology
https://www.readbyqxmd.com/read/27816747/distribution-and-prevalence-of-nosema-apis-and-n-ceranae-in-temperate-and-subtropical-eco-regions-of-argentina
#17
Adriana Pacini, Anabela Mira, Ana Molineri, Agostina Giacobino, Natalia Bulacio Cagnolo, Andrea Aignasse, Luis Zago, Mercedes Izaguirre, Julieta Merke, Emanuel Orellano, Ezequiel Bertozzi, Hernan Pietronave, Romina Russo, Alejandra Scannapieco, Silvia Lanzavecchia, Leonhard Schnittger, Marcelo Signorini
A total of 361 colonies from 59 apiaries located in two temperate and three subtropical eco-regions were examined during the post-harvest period to determine distribution and prevalence of Nosema spp. Apiaries from subtropical eco-regions showed a lower spore count than those from temperate eco-regions. Pure N. ceranae and co-infection were detected in apiaries from all regions. In contrast, pure N. apis infection was exclusively observed in the subtropical study region. The predominant detection of N. apis in a subtropical region joining a southern temperate region where mainly co-infected apiaries were identified is in contrast to previous reports...
November 2016: Journal of Invertebrate Pathology
https://www.readbyqxmd.com/read/27810288/first-record-of-perkinsus-chesapeaki-infecting-crassostrea-rhizophorae-in-south-america
#18
Maximiano Pinheiro Dantas Neto, Tereza Cristina Vasconcelos Gesteira, Rachel Costa Sabry, Rubens Galdino Feijó, Jamille Martins Forte, Guisla Boehs, Rodrigo Maggioni
This study investigated Perkinsus spp. infecting Crassostrea rhizophorae from the Jaguaribe River estuary, Ceará, Brazil. Fragments of gills and rectum of the oysters (n=150) were incubated in Ray's fluid thioglycollate medium (RFTM). Genus Perkinsus-specific PerkITS85/750 PCR assays were performed and their amplicons were sequenced by the Sanger method. The RFTM assays confirmed Perkinsus spp. The sequencing of the amplified fragments from the rDNA internal transcribed spacers (ITS) of Perkinsus spp. confirmed Perkinsus chesapeaki...
November 2016: Journal of Invertebrate Pathology
https://www.readbyqxmd.com/read/27803664/herpes-simplex-virus-type1-hsv-1-impairs-dna-repair-in-cortical-neurons
#19
Giovanna De Chiara, Mauro Racaniello, Cristiana Mollinari, Maria Elena Marcocci, Giorgia Aversa, Alessio Cardinale, Anna Giovanetti, Enrico Garaci, Anna Teresa Palamara, Daniela Merlo
Several findings suggest that Herpes simplex virus-1 (HSV-1) infection plays a role in the neurodegenerative processes that characterize Alzheimer's disease (AD), but the underlying mechanisms have yet to be fully elucidated. Here we show that HSV-1 productive infection in cortical neurons causes the accumulation of DNA lesions that include both single (SSBs) and double strand breaks (DSBs), which are reported to be implicated in the neuronal loss observed in neurodegenerative diseases. We demonstrate that HSV-1 downregulates the expression level of Ku80, one of the main components of non-homologous end joining (NHEJ), a major pathway for the repair of DSBs...
2016: Frontiers in Aging Neuroscience
https://www.readbyqxmd.com/read/27774853/detection-of-pseudocowpox-virus-in-water-buffalo-bubalus-bubalis-with-vesicular-disease-in-the-state-of-s%C3%A3-o-paulo-brazil-in-2016
#20
Mateus Laguardia-Nascimento, Ana Paula Ferreira de Oliveira, Fernanda Rodas Pires Fernandes, Anselmo Vasconcelos Rivetti, Marcelo Fernandes Camargos, Antônio Augusto Fonseca Júnior
BACKGROUND: Parapoxviruses are zoonotic viruses that infect cattle, goats and sheep; there have also been reports of infections in camels, domestic cats and seals. OBJECTIVE: The objective of this report was to describe a case of vesicular disease caused by pseudocowpox virus (PCPV) in water buffalo (Bubalus bubalis) in Brazil. ANIMALS: Sixty buffalo less than 6 months old exhibited ulcers and widespread peeling of the tongue epithelium. There were no cases of vesicular disease in pigs or horses on the same property...
December 2017: Veterinary Quarterly
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