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Infectious modification

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https://www.readbyqxmd.com/read/28626106/-seedi-basic-strategies-for-the-primary-and-secondary-prevention-of-atherosclerotic-cardiovascular-disease
#1
Chunsong Hu
ABCDE strategy, mainly based on drugs or medications and the lifestyle modification (named as "main medical strategy"), is popular in the guideline for primary and secondary prevention of atherosclerotic cardiovascular disease (ASCVD) in China and foreign countries. Here, the author recommends a non-invasive and non-pharmacologic "Zhongzi" rule, which includes 4 healthy elements: Sleep, emotion, exercise, and diet (SEED), and also called SEED intervention (SEEDi) strategy. It is the basic strategy for primary and secondary prevention of non-infectious diseases, especially for ASCVD...
May 28, 2017: Zhong Nan da Xue Xue Bao. Yi Xue Ban, Journal of Central South University. Medical Sciences
https://www.readbyqxmd.com/read/28624132/schizogony-and-gametogony-of-oocyst-deficient-t-263-strain-of-toxoplasma-gondii
#2
J P Dubey
Oocysts are important stage for the spread of Toxoplasma gondii because they are environmentally resistant. Among all hosts of T. gondii, only felids can excrete oocysts. Cats that have excreted T. gondii oocysts after primary infection develop immunity to re-excretion of oocysts, and this immunity appears to be long-lasting. It would be desirable to have a non-infectious vaccine for the prevention of T. gondii infection in cats and to understand mechanism of immunity to excretion of oocysts. An initial step will be to indentify stage/stages of the parasite for induction of immunity...
May 27, 2017: Veterinary Parasitology
https://www.readbyqxmd.com/read/28606144/a-reverse-genetics-system-for-avian-coronavirus-infectious-bronchitis-virus-based-on-targeted-rna-recombination
#3
Steven J van Beurden, Alinda J Berends, Annika Krämer-Kühl, Dieuwertje Spekreijse, Gilles Chénard, Hans-Christian Philipp, Egbert Mundt, Peter J M Rottier, M Hélène Verheije
BACKGROUND: Avian coronavirus infectious bronchitis virus (IBV) is a respiratory pathogen of chickens that causes severe economic losses in the poultry industry worldwide. Major advances in the study of the molecular biology of IBV have resulted from the development of reverse genetics systems for the highly attenuated, cell culture-adapted, IBV strain Beaudette. However, most IBV strains, amongst them virulent field isolates, can only be propagated in embryonated chicken eggs, and not in continuous cell lines...
June 12, 2017: Virology Journal
https://www.readbyqxmd.com/read/28588133/novel-nonreplicating-vaccinia-virus-vector-enhances-expression-of-heterologous-genes-and-suppresses-synthesis-of-endogenous-viral-proteins
#4
Linda S Wyatt, Wei Xiao, Jeffrey L Americo, Patricia L Earl, Bernard Moss
Viruses are used as expression vectors for protein synthesis, immunology research, vaccines, and therapeutics. Advantages of poxvirus vectors include the accommodation of large amounts of heterologous DNA, the presence of a cytoplasmic site of transcription, and high expression levels. On the other hand, competition of approximately 200 viral genes with the target gene for expression and immune recognition may be disadvantageous. We describe a vaccinia virus (VACV) vector that uses an early promoter to express the bacteriophage T7 RNA polymerase; has the A23R intermediate transcription factor gene deleted, thereby restricting virus replication to complementing cells; and has a heterologous gene regulated by a T7 promoter...
June 6, 2017: MBio
https://www.readbyqxmd.com/read/28579134/the-impact-of-obesity-on-pediatric-inpatients-with-urinary-tract-infections-in-the-united-states
#5
Yusuke Okubo, Atsuhiko Handa
INTRODUCTION: Urinary tract infections (UTI) are common infectious disorders, and obesity is an increasing public health problem worldwide. Several studies have suggested that childhood obesity may be associated with the development of UTI. However, the potential effects of obesity on the clinical outcomes of UTI in children remain unknown. MATERIALS AND METHODS: Hospital discharge records for patients aged 18 years or younger with a diagnosis of UTI were extracted from the 2012 Kids' Inpatient Database...
May 24, 2017: Journal of Pediatric Urology
https://www.readbyqxmd.com/read/28558707/effect-of-the-2014-clinical-and-laboratory-standards-institute-urine-specific-breakpoints-on-cefazolin-susceptibility-rates-at-a-community-teaching-hospital
#6
Daniel B Chastain, Ijang Ngando, Christopher M Bland, Carlos Franco-Paredes, W Anthony Hawkins
BACKGROUND: Enterobacteriaceae, which include Escherichia coli, Klebsiella pneumoniae, and Proteus mirabilis, are identified as the infectious etiology in the majority of urinary tract infections (UTIs) in community hospitals across the United States. The minimum inhibitory concentration (MIC) is a useful tool when choosing an appropriate antibacterial agent. Recent changes to the 2014 Clinical and Laboratory Standards Institute (CLSI) guidelines included reporting a urine-specific cefazolin breakpoint for enterobacteriaceae (susceptible ≤16 mcg/mL)...
May 30, 2017: Annals of Clinical Microbiology and Antimicrobials
https://www.readbyqxmd.com/read/28553418/analysis-of-the-literature-on-chronic-cough-in-children
#7
REVIEW
Marcello Bergamini, Ahmad Kantar, Renato Cutrera, Italian Pediatric Cough Interest Group
Throughout childhood, various developmental phenomena influence the cough reflex. Among these are the modifications in the anatomy and functions of the respiratory tract and the central and peripheral nervous systems. Moreover, after birth, the immunological response undergoes progressive transformations with the acquisition of immune memory processes. These conditions make infections and airway abnormalities the overwhelming cause of chronic cough in children and infants. In children, chronic cough should be treated on the basis of etiology...
2017: Open Respiratory Medicine Journal
https://www.readbyqxmd.com/read/28547158/impact-of-prompt-intervention-in-response-to-positive-blood-culture-results-during-weekends-by-collaboration-between-infectious-disease-specialists-and-microbiology-laboratory-staff
#8
M Tsuboi, K Hayakawa, K Mezaki, Y Katanami, K Yamamoto, S Kutsuna, N Takeshita, N Ohmagari
The purpose of this investigation was to elucidate the impact of prompt intervention for patients whose blood culture results became positive during weekends, as this is not standard care in some countries. A retrospective cohort study was conducted in a tertiary referral hospital. From June 2015, results of positive blood cultures became available during weekends. If infectious disease specialists identified cases of bacteremia on suboptimal antimicrobial coverage, they contacted the primary team for modification of antibiotic treatment...
May 25, 2017: European Journal of Clinical Microbiology & Infectious Diseases
https://www.readbyqxmd.com/read/28546955/biofabrication-and-biomaterials-for-urinary-tract-reconstruction
#9
REVIEW
Moustafa M Elsawy, Achala de Mel
Reconstructive urologists are constantly facing diverse and complex pathologies that require structural and functional restoration of urinary organs. There is always a demand for a biocompatible material to repair or substitute the urinary tract instead of using patient's autologous tissues with its associated morbidity. Biomimetic approaches are tissue-engineering tactics aiming to tailor the material physical and biological properties to behave physiologically similar to the urinary system. This review highlights the different strategies to mimic urinary tissues including modifications in structure, surface chemistry, and cellular response of a range of biological and synthetic materials...
2017: Research and Reports in Urology
https://www.readbyqxmd.com/read/28537231/-viral-component-of-the-human-genome
#10
V M Blinov, V V Zverev, G S Krasnov, F P Filatov, A V Shargunov
Relationships between viruses and their human host are traditionally described from the point of view taking into consideration hosts as victims of viral aggression, which results in infectious diseases. However, these relations are in fact two-sided and involve modifications of both the virus and host genomes. Mutations that accumulate in the populations of viruses and hosts may provide them advantages such as the ability to overcome defense barriers of host cells or to create more efficient barriers to deal with the attack of the viral agent...
March 2017: Molekuliarnaia Biologiia
https://www.readbyqxmd.com/read/28532458/results-of-an-early-intervention-programme-for-patients-with-bacteraemia-analysis-of-prognostic-factors-and-mortality
#11
A Del Arco, J Olalla, J de la Torre, A Blázquez, N Montiel-Quezel, J L Prada, F Rivas, J García-Alegría, F Fernández-Sánchez
BACKGROUND: Bacteraemia is a common cause of morbidity and mortality in patients admitted to hospital. The aim of this study is to analyse the results of a two-year programme for the early optimisation of antibiotic treatment in patients admitted to the Costa del Sol Hospital (Marbella. Spain). METHODS: A prospective two-year cohort study was conducted, evaluating all episodes of bacteraemia at the Costa del Sol Hospital. Epidemiological and microbiological characteristics, any modification of the initial antibiotic treatment, prognostic risk stratification, early mortality related to the episode of bacteraemia, and mortality after the seventh day, were included in the analysis...
May 22, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28523925/genetic-and-pathologic-characteristics-of-infectious-bursal-disease-viruses-isolated-from-broiler-chickens-in-iran-during-2014-2015
#12
H Norouzian, G Farjanikish, H Hosseini
Infectious bursal disease (IBD) virus causes a highly contagious immunosuppressive disease in chickens. A total number of 12 pooled bursal samples were collected during 2014-2015 from broiler farms in different regions of Iran. Typical macroscopical and histopathological lesions of the bursa of Fabricius were found similar to reports by other researchers. A 474-bp part of hypervariable region of VP2 (hvVP2) was sequenced and analyzed. Ten isolates had the characteristic amino acid residues of very virulent IBD (vvIBD) viruses and the other two were identified as attenuated (vaccine) strains...
2017: Acta Virologica
https://www.readbyqxmd.com/read/28508215/reverse-genetics-system-for-the-avian-coronavirus-infectious-bronchitis-virus
#13
Erica Bickerton, Sarah M Keep, Paul Britton
We have developed a reverse genetics system for the avian coronavirus infectious bronchitis virus (IBV) in which a full-length cDNA corresponding to the IBV genome is inserted into the vaccinia virus genome under the control of a T7 promoter sequence. Vaccinia virus as a vector for the full-length IBV cDNA has the advantage that modifications can be introduced into the IBV cDNA using homologous recombination, a method frequently used to insert and delete sequences from the vaccinia virus genome. Here, we describe the use of transient dominant selection as a method for introducing modifications into the IBV cDNA that has been successfully used for the substitution of specific nucleotides, deletion of genomic regions, and exchange of complete genes...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28508212/reverse-genetics-for-porcine-reproductive-and-respiratory-syndrome-virus
#14
Mingyuan Han, Hanzhong Ke, Yijun Du, Qingzhan Zhang, Dongwan Yoo
Porcine reproductive and respiratory syndrome (PRRS) is a reemerging swine disease, and has become economically the most significant disease in pork production worldwide. The causative agent is PRRS virus (PRRSV), which is a member virus of the family Arteriviridae. The PRRSV genome is a single-stranded positive-sense RNA and is infectious. Two strategies in the PRRSV reverse genetics system have been employed for reconstitution of progeny virus: RNA transfection and DNA transfection. The PRRSV reverse genetics has broadly been used for studies including protein structure-function relationship, foreign gene expression, vaccine development, virulence determinants, and viral pathogenesis...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28465429/chlamydia-hijacks-arf-gtpases-to-coordinate-microtubule-posttranslational-modifications-and-golgi-complex-positioning
#15
Jordan Wesolowski, Mary M Weber, Agata Nawrotek, Cheryl A Dooley, Mike Calderon, Claudette M St Croix, Ted Hackstadt, Jacqueline Cherfils, Fabienne Paumet
The intracellular bacterium Chlamydia trachomatis develops in a parasitic compartment called the inclusion. Posttranslationally modified microtubules encase the inclusion, controlling the positioning of Golgi complex fragments around the inclusion. The molecular mechanisms by which Chlamydia coopts the host cytoskeleton and the Golgi complex to sustain its infectious compartment are unknown. Here, using a genetically modified Chlamydia strain, we discovered that both posttranslationally modified microtubules and Golgi complex positioning around the inclusion are controlled by the chlamydial inclusion protein CT813/CTL0184/InaC and host ARF GTPases...
May 2, 2017: MBio
https://www.readbyqxmd.com/read/28463876/systemic-and-topical-use-of-monoclonal-antibodies-to-prevent-the-sexual-transmission-of-hiv
#16
Deborah J Anderson, Joseph A Politch, Larry Zeitlin, Andy Hiatt, Kadryn Kadasia, Kenneth H Mayer, Ruth M Ruprecht, Francois Villinger, Kevin J Whaley
Passive immunization, the transfer of antibodies to a nonimmune individual to provide immunological protection, has been used for over 100 years to prevent and treat human infectious diseases. The introduction of techniques to produce human monoclonal antibodies (mAbs) has revolutionized the field, and a large number of human mAbs have been licensed for the treatment of cancer, autoimmune and inflammatory diseases. With the recent discovery and production of highly potent broadly neutralizing and other multifunctional antibodies to HIV, mAbs are now being considered for HIV therapy and prophylaxis...
May 1, 2017: AIDS
https://www.readbyqxmd.com/read/28463237/epigenetic-and-transgenerational-mechanisms-in-infection-mediated-neurodevelopmental-disorders
#17
REVIEW
U Weber-Stadlbauer
Prenatal infection is an environmental risk factor for various brain disorders with neurodevelopmental components, including autism spectrum disorder and schizophrenia. Modeling this association in animals shows that maternal immune activation negatively affects fetal brain development and leads to the emergence of behavioral disturbances later in life. Recent discoveries in these preclinical models suggest that epigenetic modifications may be a critical molecular mechanism by which prenatal immune activation can mediate changes in brain development and functions, even across generations...
May 2, 2017: Translational Psychiatry
https://www.readbyqxmd.com/read/28452298/corticosteroid-related-toxicity-in-patients-with-chronic-idiopathic-urticaria-chronic-spontaneous-urticaria
#18
Dennis Ledford, Michael S Broder, Evgeniya Antonova, Theodore A Omachi, Eunice Chang, Allan Luskin
BACKGROUND: Treatments for patients with chronic idiopathic urticaria (CIU)-chronic spontaneous urticaria (CSU) who were unresponsive to antihistamines include oral corticosteroids (OCS). Risks of OCS-related side effects in these patients have not been described quantitatively. OBJECTIVE: To investigate the relationship between OCS use and the risk of developing side effects possibly attributable to OCS and associated health care costs in privately insured patients with CIU/CSU...
November 1, 2016: Allergy and Asthma Proceedings:
https://www.readbyqxmd.com/read/28446740/biological-risk-among-agriculture-and-construction-workers-in-molise-region-central-italy
#19
Manuela Tamburro, Vincenza Anzelmo, Paolo Bianco, Michela Lucia Sammarco, Francesco Salierno, Giancarlo Ripabelli
BACKGROUND: Biological risk is a significant issue in workplaces due to continuous modification of work organization and condition. OBJECTIVES: In this pilot study, perception and knowledge of biological risk, as well as adoption of prevention measures were evaluated among construction and agriculture workers. METHODS: A structured questionnaire was administered to workers to collect socio-demographic and employment information, in addition to data on risk perception and knowledge, and adoption of preventive measures, including those related to work activities...
April 21, 2017: La Medicina del Lavoro
https://www.readbyqxmd.com/read/28442755/global-and-local-environmental-changes-as-drivers-of-buruli-ulcer-emergence
#20
REVIEW
Marine Combe, Camilla Jensen Velvin, Aaron Morris, Andres Garchitorena, Kevin Carolan, Daniel Sanhueza, Benjamin Roche, Pierre Couppié, Jean-François Guégan, Rodolphe Elie Gozlan
Many emerging infectious diseases are caused by generalist pathogens that infect and transmit via multiple host species with multiple dissemination routes, thus confounding the understanding of pathogen transmission pathways from wildlife reservoirs to humans. The emergence of these pathogens in human populations has frequently been associated with global changes, such as socio-economic, climate or biodiversity modifications, by allowing generalist pathogens to invade and persist in new ecological niches, infect new host species, and thus change the nature of transmission pathways...
April 26, 2017: Emerging Microbes & Infections
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