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https://www.readbyqxmd.com/read/28432878/in-vitro-susceptibility-of-methicillin-resistant-staphylococcus-aureus-isolates-from-skin-and-soft-tissue-infections-to-vancomycin-daptomycin-linezolid-and-tedizolid
#1
Johanna Marcela Vanegas Múnera, Ana María Ocampo Ríos, Daniela Montoya Urrego, Judy Natalia Jiménez Quiceno
INTRODUCTION: Treatment of multidrug-resistant Gram-positive infections caused by Staphylococcus aureus remains as a clinical challenge due to emergence of new resistance mechanisms. Tedizolid is a next-generation oxazolidinone, recently approved for skin and soft tissues infections. We conducted a study to determine in vitro susceptibility to vancomycin, daptomycin, linezolid, and tedizolid in MRSA clinical isolates from adult patients with skin and soft tissue infections. MATERIAL AND METHODS: Methicillin-resistant S...
April 19, 2017: Brazilian Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28432847/genotype-phenotype-correlation-in-paediatric-pheochromocytoma-and-paraganglioma-a-single-centre-experience-from-india
#2
Kranti Khadilkar, Vijaya Sarathi, Rajeev Kasaliwal, Reshma Pandit, Manjunath Goroshi, Vyankatesh Shivane, Anurag Lila, Tushar Bandgar, Nalini S Shah
BACKGROUND: Data on genotype-phenotype correlation in children is limited. Hence, we studied the prevalence of germline mutations and genotype-phenotype correlation in children with pheochromocytoma (PCC)/paraganglioma (PGL) and compared it with adult PCC/PGL cohort. METHODS: A total of 121 consecutive, unrelated, index PCC/PGL patients underwent genetic testing for five PCC/PGL susceptibility genes (RET, VHL, SDHB, SDHD and SDHC) and were evaluated for clinical diagnosis of neurofibromatosis type1 (NF1)...
April 22, 2017: Journal of Pediatric Endocrinology & Metabolism: JPEM
https://www.readbyqxmd.com/read/28432811/yu-et%C3%A2-al-host-cell-mutants-resistant-to-cryptosporidium-parvum-characterization-of-host-cell-mutants-significantly-resistant-to-cryptosporidium-parvum-infection
#3
Xue Yu, Haili Zhang, Guan Zhu
Cryptosporidium parvum is a parasitic protist and a causative agent of mild to severe diarrheal diseases in humans and animals. Despite its globally recognized importance, knowledge on the mechanism of parasite invasion and molecular interactions between host cells and the parasite is limited. Here we report the establishment of 43 mutant cell lines derived from HCT-8 cells by UV-induced mutagenesis and the characterization of three mutants with significantly reduced susceptibility to cryptosporidial infection...
April 22, 2017: Journal of Eukaryotic Microbiology
https://www.readbyqxmd.com/read/28432664/human-perinatal-immunity-in-physiological-conditions-and-during-infection
#4
REVIEW
Gijs T J van Well, Leonie A Daalderop, Tim Wolfs, Boris W Kramer
The intrauterine environment was long considered sterile. However, several infectious threats are already present during fetal life. This review focuses on the postnatal immunological consequences of prenatal exposure to microorganisms and related inflammatory stimuli. Both the innate and adaptive immune systems of the fetus and neonate are immature, which makes them highly susceptible to infections. There is good evidence that prenatal infections are a primary cause of preterm births. Additionally, the association between antenatal inflammation and adverse neonatal outcomes has been well established...
December 2017: Molecular and Cellular Pediatrics
https://www.readbyqxmd.com/read/28432548/prostate-knowledge-attitudes-and-beliefs-in-black-college-men-a-qualitative-study
#5
Krista Mincey, Brian L Turner, Khila Anderson, Sheldon Maurice, Rachel Neal, Camille White
This qualitative study explores prostate cancer knowledge and risk in Black college men. Using the Health Belief Model as a guide, focus groups and interviews were conducted with 35 Black males at a historically black college and university. Thematic analysis was conducted and general themes were found. Results indicate that Black college males have very little knowledge and understanding of what their prostate is and what it does. They are also unaware of their risk of developing prostate cancer. Additionally, while many believe prostate cancer is severe, few believe they are susceptible to getting it...
April 21, 2017: Journal of Community Health
https://www.readbyqxmd.com/read/28432518/correlation-between-heavy-metal-exposure-and-gstm1-polymorphism-in-iranian-multiple-sclerosis-patients
#6
Mehdi Aliomrani, Mohammad A Sahraian, Hamid Shirkhanloo, Mohammad Sharifzadeh, Mohammad R Khoshayand, Mohammad H Ghahremani
Multiple sclerosis (MS) is an immune-mediated chronic inflammatory disease of the central nervous system. Various exposures to heavy metals can lead to toxicity and oxidative stress. While glutathione-S-transferases are known as oxidative stress-related genes and involved in metal biotransformation. The aim of the present study is to investigate the correlation of GSTM1 polymorphism in MS patients and the possible association with blood concentration of arsenic (As) and cadmium (Cd) as major heavy metal pollutants...
April 21, 2017: Neurological Sciences
https://www.readbyqxmd.com/read/28432381/modulation-of-the-multidrug-efflux-pump-emrd-3-from-vibrio-cholerae-by-allium-sativum-extract-and-the-bioactive-agent-allyl-sulfide-plus-synergistic-enhancement-of-antimicrobial-susceptibility-by-a-sativum-extract
#7
Merissa M Bruns, Prathusha Kakarla, Jared T Floyd, Mun Mun Mukherjee, Robert C Ponce, John A Garcia, Indrika Ranaweera, Leslie M Sanford, Alberto J Hernandez, T Mark Willmon, Grace L Tolson, Manuel F Varela
The causative agent of cholera, Vibrio cholerae, is a public health concern. Multidrug-resistant V. cholerae variants may reduce chemotherapeutic efficacies of severe cholera. We previously reported that the multidrug efflux pump EmrD-3 from V. cholerae confers resistance to multiple structurally distinct antimicrobials. Medicinal plant compounds are potential candidates for EmrD-3 efflux pump modulation. The antibacterial activities of garlic Allium sativum, although poorly understood, predicts that a main bioactive component, allyl sulfide, modulates EmrD-3 efflux...
April 21, 2017: Archives of Microbiology
https://www.readbyqxmd.com/read/28432369/sensitivity-to-antibiotics-of-bacteria-exposed-to-gamma-radiation-emitted-from-hot-soils-of-the-high-background-radiation-areas-of-ramsar-northern-iran
#8
Seyed Mohammad Javad Mortazavi, Samira Zarei, Mohammad Taheri, Saeed Tajbakhsh, Seyed Alireza Mortazavi, Sahar Ranjbar, Fatemeh Momeni, Samaneh Masoomi, Leila Ansari, Mohammad Mehdi Movahedi, Shahram Taeb, Sina Zarei, Masood Haghani
BACKGROUND: Over the past several years our laboratories have investigated different aspects of the challenging issue of the alterations in bacterial susceptibility to antibiotics induced by physical stresses. OBJECTIVE: To explore the bacterial susceptibility to antibiotics in samples of Salmonella enterica subsp. enterica serovar Typhimurium (S. typhimurium), Staphylococcus aureus, and Klebsiella pneumoniae after exposure to gamma radiation emitted from the soil samples taken from the high background radiation areas of Ramsar, northern Iran...
April 2017: International Journal of Occupational and Environmental Medicine
https://www.readbyqxmd.com/read/28432366/exploring-quantum-griffiths-phase-in-ni1-x-v-x-nanoalloys
#9
Priyadarsini Swain, Suneel K Srivastava, Sanjeev K Srivastava
Metallic Ni1-x V x alloys exhibit a ferromagnetic to paramagnetic disordered quantum phase transition in bulk. Such a phase transition is accompanied by a quantum Griffiths phase (QGP), featuring fractional power-law temperature dependences of physical variables, like magnetic susceptibility and specific heat, at low temperatures. As nanoparticles (NP's) usually exhibit properties significantly different from their bulk counterparts, it is intriguing to explore the occurrence of quantum Griffiths phase in Ni1-x V x nanoalloys...
April 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28432358/differential-sensitivity-to-infections-and-antimicrobial-peptide-mediated-immune-response-in-four-silkworm-strains-with-different-geographical-origin
#10
Ottavia Romoli, Alessio Saviane, Andrea Bozzato, Paola D'Antona, Gianluca Tettamanti, Andrea Squartini, Silvia Cappellozza, Federica Sandrelli
The domesticated silkworm Bombyx mori has an innate immune system, whose main effectors are the antimicrobial peptides (AMPs). Silkworm strains are commonly grouped into four geographical types (Japanese, Chinese, European and Tropical) and are generally characterised by a variable susceptibility to infections. To clarify the genetic and molecular mechanisms on which the different responses to infections are based, we exposed one silkworm strain for each geographical area to oral infections with the silkworm pathogens Enterococcus mundtii or Serratia marcescens...
April 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28432355/basal-autophagy-prevents-autoactivation-or-enhancement-of-inflammatory-signals-by-targeting-monomeric-myd88
#11
Takeshi Into, Toshi Horie, Megumi Inomata, Jin Gohda, Jun-Ichiro Inoue, Yukitaka Murakami, Shumpei Niida
Autophagy, the processes of delivery of intracellular components to lysosomes, regulates induction of inflammation. Inducible macroautophagy degrades inflammasomes and dysfunctional mitochondria to downregulate inflammatory signals. Nonetheless, the effects of constitutive basal autophagy on inflammatory signals are largely unknown. Here, we report a previously unknown effect of basal autophagy. Lysosomal inhibition induced weak inflammatory signals in the absence of a cellular stimulus and in the presence of a nutrient supply, and their induction was impaired by MyD88 deficiency...
April 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28432350/enhancing-the-throughput-and-multiplexing-capabilities-of-next-generation-sequencing-for-efficient-implementation-of-pooled-shrna-and-crispr-screens
#12
Md Fahmid Islam, Atsushi Watanabe, Lai Wong, Conor Lazarou, Frederick S Vizeacoumar, Omar Abuhussein, Wayne Hill, Maruti Uppalapati, C Ronald Geyer, Franco J Vizeacoumar
Next generation sequencing is becoming the method of choice for functional genomic studies that use pooled shRNA or CRISPR libraries. A key challenge in sequencing these mixed-oligo libraries is that they are highly susceptible to hairpin and/or heteroduplex formation. This results in polyclonal, low quality, and incomplete reads and reduces sequencing throughput. Unfortunately, this challenge is significantly magnified in low-to-medium throughput bench-top sequencers as failed reads significantly perturb the maximization of sequence coverage and multiplexing capabilities...
April 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28432296/aminoglycosides-but-not-ptc124-ataluren-rescue-nonsense-mutations-in-the-leptin-receptor-and-in-luciferase-reporter-genes
#13
Florian Bolze, Sabine Mocek, Anika Zimmermann, Martin Klingenspor
In rare cases, monogenetic obesity is caused by nonsense mutations in genes regulating energy balance. A key factor herein is the leptin receptor. Here, we focus on leptin receptor nonsense variants causing obesity, namely the human W31X, murine Y333X and rat Y763X mutations, and explored their susceptibilities to aminoglycoside and PTC124 mediated translational read-through in vitro. In a luciferase based assay, all mutations - when analysed within the mouse receptor - were prone to aminoglycoside mediated nonsense suppression with the highest susceptibility for W31X, followed by Y763X and Y333X...
April 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28432264/prediction-of-stroke-subtype-and-recanalization-using-susceptibility-vessel-sign-on-susceptibility-weighted-magnetic-resonance-imaging
#14
Dong-Wan Kang, Han-Gil Jeong, Do Yeon Kim, Wookjin Yang, Seung-Hoon Lee
BACKGROUND AND PURPOSE: The susceptibility vessel sign (SVS) is a hypointense signal visualized because of the susceptibility effect of thrombi, sensitively detected on susceptibility-weighted magnetic resonance imaging. The relationship of SVS parameters with the stroke subtype and recanalization status after endovascular treatment remains uncertain. METHODS: The data from 89 patients with acute stroke caused by anterior circulation infarcts who underwent susceptibility-weighted magnetic resonance imaging before endovascular treatment were examined...
April 21, 2017: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/28431923/sources-of-racial-disparities-in-hiv-prevalence-in-men-who-have-sex-with-men-in-atlanta-ga-usa-a-modelling-study
#15
Steven M Goodreau, Eli S Rosenberg, Samuel M Jenness, Nicole Luisi, Sarah E Stansfield, Gregorio A Millett, Patrick S Sullivan
BACKGROUND: In the USA, men who have sex men (MSM) are at high risk for HIV, and black MSM have a substantially higher prevalence of infection than white MSM. We created a simulation model to assess the strength of existing hypotheses and data that account for these disparities. METHODS: We built a dynamic, stochastic, agent-based network model of black and white MSM aged 18-39 years in Atlanta, GA, USA, that incorporated race-specific individual and dyadic-level prevention and risk behaviours, network attributes, and care patterns...
April 18, 2017: Lancet HIV
https://www.readbyqxmd.com/read/28431891/-vulvovaginal-candidiasis-an-old-disease-with-new-challenges
#16
María Soledad Miró, Emilse Rodríguez, Cecilia Vigezzi, Paula Alejandra Icely, Marcelo Gonzaga de Freitas Araújo, Fernando Oscar Riera, Lara Vargas, Claudio Abiega, Juan Pablo Caeiro, Claudia Elena Sotomayor
Vulvovaginal candidiasis is an old disease that, even in a modern world, continues to have a high incidence. Despite the therapeutic advances, treatments are not always effective, and our understanding of the pathogenesis of this fungal infection is still incomplete. A discussion is presented in this article on the most significant developments related to the fungal virulence factors, the role of the immunological mechanisms involved in the vaginal protection, and the genetic alterations that confer susceptibility to the recurrent form of this mycosis...
April 18, 2017: Revista Iberoamericana de Micología
https://www.readbyqxmd.com/read/28431886/innate-resistance-of-new-zealand-paua-to-abalone-viral-ganglioneuritis
#17
Serge Corbeil, Kenneth A McColl, Lynette M Williams, Joanne Slater, Mark St J Crane
The susceptibility of New Zealand paua (Haliotis iris) to infection by abalone herpesvirus (Haliotid herpesvirus 1; HaHV) and to the disease abalone viral ganglioneuritis (AVG) was determined. Infection challenges performed by intra-muscular injection and by immersion in infectious water containing HaHV demonstrated that New Zealand paua were highly resistant to infection by Haliotid herpesvirus 1 and were fully resistant to the disease AVG.
April 18, 2017: Journal of Invertebrate Pathology
https://www.readbyqxmd.com/read/28431817/pneumococcal-carriage-among-children-after-four-years-of-routine-10-valent-pneumococcal-conjugate-vaccine-use-in-brazil-the-emergence-of-multidrug-resistant-serotype-6c
#18
Felipe P G Neves, Nayara T Cardoso, Robert E Snyder, Mariel A Marlow, Claudete A A Cardoso, Lúcia M Teixeira, Lee W Riley
BACKGROUND: In 2010, the 10-valent pneumococcal conjugate vaccine (PCV10) was introduced free of charge in Brazil as part of the public immunization program. Here we investigated the carriage prevalence, colonization risk factors, capsular types, and antimicrobial resistance among pneumococcal isolates obtained from children in Brazil four years after routine PCV10 use. METHODS: Between September and December 2014, we conducted a cross-sectional study among children<6years old who attended one public and two private clinics in Niterói, RJ, Brazil to evaluate pneumococcal nasopharyngeal carriage...
April 18, 2017: Vaccine
https://www.readbyqxmd.com/read/28431796/lessons-learned-from-twins-in-autoimmune-and-chronic-inflammatory-diseases
#19
REVIEW
Elena Generali, Angela Ceribelli, Maria Antonietta Stazi, Carlo Selmi
Autoimmunity and chronic inflammation recognize numerous shared factors and, as a result, the resulting diseases frequently coexist in the same patients or respond to the same treatments. Among the convenient truths of autoimmune and chronic inflammatory diseases, there is now agreement that these are complex conditions in which the individual genetic predisposition provides a rate of heritability. The concordance rates in monozygotic and dizygotic twins allows to estimate the weight of the environment in determining disease susceptibility, despite recent data supporting that only a minority of immune markers depend on hereditary factors...
April 18, 2017: Journal of Autoimmunity
https://www.readbyqxmd.com/read/28431642/pcr-based-detection-methods-for-single-nucleotide-polymorphism-or-mutation-real-time-pcr-and-its-substantial-contribution-toward-technological-refinement
#20
Kazuyuki Matsuda
Single-nucleotide polymorphisms (SNPs) and single-nucleotide mutations result from the substitution of only a single base. The SNP or mutation can be relevant to disease susceptibility, pathogenesis of disease, and efficacy of specific drugs. It is important to detect SNPs or mutations clinically. Methods to distinguish/detect SNPs or mutations should be highly specific and sensitive. In this regard, polymerase chain reaction (PCR) has provided the necessary analytical performance for many molecular analyses...
2017: Advances in Clinical Chemistry
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