keyword
MENU ▼
Read by QxMD icon Read
search

Infective

keyword
https://www.readbyqxmd.com/read/27914366/rapid-and-low-cost-biosensor-for-the-detection-of-staphylococcus-aureus
#1
Ghadeer A R Y Suaifan, Sahar Alhogail, Mohammed Zourob
Staphylococcus aureus (S. aureus) is one of the most common etiological agents in hospital-acquired infections and food-borne illness. S. aureus toxins and virulence proteases often circulate in host blood vessels leading to life-threatening diseases. Standard identification approaches include bacterial culturing method, which takes several days. Other nucleic acid-based methods were expensive and required trained personnel. To surmount these limitations, a paper-based biosensor was developed. The sensing mechanism was based on the proteolytic activity of S...
November 21, 2016: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/27914364/structure-based-exploration-and-exploitation-of-the-s4-subsite-of-norovirus-3cl-protease-in-the-design-of-potent-and-permeable-inhibitors
#2
Anushka C Galasiti Kankanamalage, Yunjeong Kim, Athri D Rathnayake, Vishnu C Damalanka, Pathum M Weerawarna, Sean T Doyle, Amer F Alsoudi, D M Padmasankha Dissanayake, Gerald H Lushington, Nurjahan Mehzabeen, Kevin P Battaile, Scott Lovell, Kyeong-Ok Chang, William C Groutas
Human noroviruses are the primary cause of epidemic and sporadic acute gastroenteritis. The worldwide high morbidity and mortality associated with norovirus infections, particularly among the elderly, immunocompromised patients and children, constitute a serious public health concern. There are currently no approved human vaccines or norovirus-specific small-molecule therapeutics or prophylactics. Norovirus 3CL protease has recently emerged as a potential therapeutic target for the development of anti-norovirus agents...
November 14, 2016: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/27914363/new-insights-into-the-sar-and-drug-combination-synergy-of-2-quinolin-4-yloxy-acetamides-against-mycobacterium-tuberculosis
#3
Bruno Couto Giacobbo, Kenia Pissinate, Valnês Rodrigues-Junior, Anne Drumond Villela, Estêvão Silveira Grams, Bruno Lopes Abbadi, Fernanda Teixeira Subtil, Nathalia Sperotto, Rogério Valim Trindade, Davi Fernando Back, Maria Martha Campos, Luiz Augusto Basso, Pablo Machado, Diógenes Santiago Santos
2-(Quinolin-4-yloxy)acetamides have been described as potent and selective in vitro inhibitors of Mycobacterium tuberculosis (Mtb) growth. Herein, a new series of optimized compounds were found to demonstrate highly potent antitubercular activity, with minimum inhibitory concentration (MIC) values against drug-susceptible and drug-resistant Mycobacterium tuberculosis strains in the submicromolar range. Furthermore, the most active compounds had no apparent toxicity to mammalian cells, and they showed intracellular activities similar to those of isoniazid and rifampin in a macrophage model of Mtb infection...
November 23, 2016: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/27914361/development-of-cxcr4-modulators-by-virtual-hts-of-a-novel-amide-sulfamide-compound-library
#4
Renren Bai, Qi Shi, Zhongxing Liang, Younghyoun Yoon, Yiran Han, Amber Feng, Shuangping Liu, Yoonhyeun Oum, C Chris Yun, Hyunsuk Shim
CXCR4 plays a crucial role in recruitment of inflammatory cells to inflammation sites at the beginning of the disease process. Modulating CXCR4 functions presents a new avenue for anti-inflammatory strategies. However, using CXCR4 antagonists for a long term usage presents potential serious side effect due to their stem cell mobilizing property. We have been developing partial CXCR4 antagonists without such property. A new computer-aided drug design program, the FRESH workflow, was used for anti-CXCR4 lead compound discovery and optimization, which coupled both compound library building and CXCR4 docking screens in one campaign...
November 24, 2016: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/27914325/fabrication-of-metronidazole-loaded-poly-%C3%AE%C2%B5-caprolactone-zein-core-shell-nanofiber-membranes-via-coaxial-electrospinning-for-guided-tissue-regeneration
#5
Min He, Huiyi Jiang, Rui Wang, Yi Xie, Changsheng Zhao
To develop a biologically mimetic guided tissue regeneration (GTR) membrane with localized sustained drug release function to prevent infection, coaxial electrospinning technique was conducted to fabricate metronidazole (MNA)-loaded poly (ε-caprolactone) (PCL)/zein core/shell nanofibers. The nanofibers displayed a uniform bead-free round morphology as observed by scanning electron microscopy (SEM), and a core/shell structure as confirmed by transmission electron microscopy (TEM). X-ray diffraction (XRD) and differential scanning calorimetry (DSC) characterizations demonstrated that the MNA was well dispersed in the nanofibers matrix...
November 19, 2016: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/27914324/development-and-validation-of-species-specific-molecular-diagnostic-tool-for-opisthorchis-felineus-digenea-opisthorchiidae-metacercariae
#6
Monica Caffara, Laura Serracca, Andrea Gustinelli, Walter Vencia, Irene Rossini, Marino Prearo, Maria L Fioravanti
Opisthorchis felineus (family Opisthorchiidae) is a parasitic flatworm representing a serious threat to humans in some countries. Opisthorchiasis occurs after consumption of raw or undercooked cyprinid fish infected by the metacercarial stage of the parasite. Due to its small size, detection of the parasite in fish fillet is time-consuming and difficult. Furthermore, isolated metacercariae can be identified to genus but not to species level using morphological features and molecular techniques are necessary...
November 28, 2016: International Journal of Food Microbiology
https://www.readbyqxmd.com/read/27914322/association-between-pigs-with-high-caecal-salmonella-loads-and-carcass-contamination
#7
M Pesciaroli, L Cucco, S De Luca, F R Massacci, C Maresca, L Medici, M Paniccià, E Scoccia, M Staffolani, G Pezzotti, C F Magistrali
Contaminated pork is a significant source of foodborne Salmonella infections. Pork is contaminated at the slaughterhouse; however, the mechanisms driving Salmonella contamination of carcasses are still poorly understood. The aim of this study was to investigate whether the amount of Salmonella carried by slaughtered pigs in their guts has an influence on carcass contamination. On that account, we tested whether the number of carcasses contaminated during a slaughter day was associated with the prevalence of highly contaminated pigs (HCP: Salmonella caecal loads ≥3log/g), or with the prevalence of pigs that simply carry Salmonella spp...
November 23, 2016: International Journal of Food Microbiology
https://www.readbyqxmd.com/read/27914317/the-disgust-related-images-dirti-database-validation-of-a-novel-standardized-set-of-disgust-pictures
#8
Anke Haberkamp, Julia Anna Glombiewski, Filipp Schmidt, Antonia Barke
Selecting appropriate stimuli is a major challenge of affective research. Although several standardized databases for affective pictures exist, none of them focus on discrete emotions such as disgust. Validated pictures inducing discrete emotions are still limited, and this presents a problem for researchers interested in studying different facets of disgust. In this paper, we introduce the DIsgust-RelaTed-Images (DIRTI) picture set. The set consists of 240 disgust-inducing pictures divided into six categories (food, animals, body products, injuries/infections, death, and hygiene)...
November 23, 2016: Behaviour Research and Therapy
https://www.readbyqxmd.com/read/27914300/structure-based-analysis-of-bacilli-and-plasmid-dihydrofolate-reductase-evolution
#9
Mona Alotaibi, Ben Delos Reyes, Tin Le, Phuong Luong, Faramarz Valafar, Robert P Metzger, Gary B Fogel, David Hecht
Dihydrofolate reductase (DHFR), a key enzyme in tetrahydrofolate-mediated biosynthetic pathways, has a structural motif known to be highly conserved over a wide range of organisms. Given its critical role in purine and amino acid synthesis, DHFR is a well established therapeutic target for treating a wide range of prokaryotic and eukaryotic infections as well as certain types of cancer. Here we present a structural-based computer analysis of bacterial (Bacilli) and plasmid DHFR evolution. We generated a structure-based sequence alignment using 7 wild-type DHFR x-ray crystal structures obtained from the RCSB Protein Data Bank and 350 chromosomal and plasmid homology models we generated from sequences obtained from the NCBI Protein Database...
November 22, 2016: Journal of Molecular Graphics & Modelling
https://www.readbyqxmd.com/read/27914286/multi-centre-field-evaluation-of-the-performance-of-the-trinity-biotech-uni-gold-hiv-1-2-rapid-test-as-a-first-line-screening-assay-for-gay-and-bisexual-men-compared-with-4th-generation-laboratory-immunoassays
#10
P Keen, D P Conway, P Cunningham, A McNulty, D L Couldwell, S C Davies, D E Smith, J Gray, M Holt, C C O'Connor, P Read, D Callander, G Prestage, R Guy
BACKGROUND: The Trinity Biotech Uni-Gold HIV test (Uni-Gold) is often used as a supplementary rapid test in testing algorithms. OBJECTIVE: To evaluate the operational performance of the Uni-Gold as a first-line screening test among gay and bisexual men (GBM) in a setting where 4th generation HIV laboratory assays are routinely used. STUDY DESIGN: We compared the performance of Uni-Gold with conventional HIV serology conducted in parallel among GBM attending 22 testing sites...
November 16, 2016: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/27914285/human-parechovirus-and-enterovirus-initiate-distinct-cns-innate-immune-responses-pathogenic-and-diagnostic-implications
#11
Danielle Fortuna, Ana María Cárdenas, Erin H Graf, Larry A Harshyne, D Craig Hooper, Michael Prosniak, John Shields, Mark T Curtis
BACKGROUND: Human parechovirus (HPeV) and enterovirus (EV) cause a range of human diseases including serious CNS infections. Little is known regarding the immune response to HPeV meningitis compared to EV meningitis or how the immune response to HPeV reflects its pathogenesis. OBJECTIVE: To characterize the innate immune response to HPeV CNS infection in order to increase our understanding of HPeV pathogenesis and possibly help identify HPeV in the clinical setting...
November 23, 2016: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/27914268/anti-adhesive-antimicrobial-peptide-coating-prevents-catheter-associated-infection-in-a-mouse-urinary-infection-model
#12
Kai Yu, Joey C Y Lo, Mei Yan, Xiaoqiang Yang, Donald E Brooks, Robert E W Hancock, Dirk Lange, Jayachandran N Kizhakkedathu
Catheter-associated urinary tract infections (CAUTIs) represent one of the most common hospital acquired infections with significant economic consequences and increased patient morbidity. CAUTIs often start with pathogen adhesion and colonization on the catheter surface followed by biofilm formation. Current strategies to prevent CAUTIs are insufficiently effective and antimicrobial coatings based on antimicrobial peptides (AMPs) hold promise in curbing CAUTIs. Here we report an effective surface tethering strategy to prepare AMP coatings on polyurethane (PU), a common biomedical plastic used for catheter manufacture, by using an anti-adhesive hydrophilic polymer coating...
November 24, 2016: Biomaterials
https://www.readbyqxmd.com/read/27914255/immobilizing-bacitracin-on-titanium-for-prophylaxis-of-infections-and-for-improving-osteoinductivity-an-in-vivo-study
#13
Bin'en Nie, Haiyong Ao, Teng Long, Jianliang Zhou, Tingting Tang, Bing Yue
Bacitracin immobilized on the titanium (Ti) surface significantly improves anti-bacterial activity and biocompatibility in vitro. In the current study, we investigated the biologic performance (bactericidal effect and bone-implant integration) of bacitracin-modified Ti in vivo. A rat osteomyelitis model with femoral medullary cavity placement of Ti rods was employed to analyze the prophylactic effect of bacitracin-modified Ti (Ti-BC). Thirty-six female Sprague Dawley (SD) rats were used to establish the Ti implant-associated infection...
November 27, 2016: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/27914222/molecular-diversity-of-human-parvovirus-b19-during-two-outbreaks-of-erythema-infectiosum-in-brazil
#14
Rita de Cássia Nasser Cubel Garcia, Renata Freire Alves Pereira, Kátia Martins Lopes de Azevedo, Tatiana Xavier de Castro, Francisco C A Mello, Sérgio Setubal, Marilda M Siqueira, David Brown, Solange Artimos de Oliveira
This study was conducted to provide information on the genetic diversity of human parvovirus B19 (B19V) circulating in the municipality of Niterói, Rio de Janeiro, Southeast Brazil during 1996-2006, a period with two distinct outbreaks of B19V infection: 1999-2000 and 2004-2005. A total of 27 sera from patients with erythema infectiosum (EI) and five sera from HIV-infected patients that tested positive for B19V DNA during the study period were analyzed. To genotype B19V strains, a semi-nested PCR for partial amplification of the capsid gene was performed and sequence analysis revealed that 31 sequences belonged to subgenotype 1a (G1a) of the main genotype 1 and one sequence was characterized as subgenotype 3b (G3b)...
November 30, 2016: Brazilian Journal of Infectious Diseases
https://www.readbyqxmd.com/read/27914221/prevalence-of-trypanosoma-cruzi-hiv-coinfection-in-southern-brazil
#15
Dulce Stauffert, Mariangela Freitas da Silveira, Marília Arndt Mesenburg, Adriane Brod Manta, Alessandra da Silva Dutra, Guilherme Lucas de Oliveira Bicca, Marcos Marreiro Villela
Chagas disease reactivation has been a defining condition for acquired immune deficiency syndrome in Brazil for individuals coinfected with Trypanosoma cruzi and HIV since 2004. Although the first coinfection case was reported in the 1980s, its prevalence has not been firmly established. In order to know coinfection prevalence, a cross-sectional study of 200 HIV patients was performed between January and July 2013 in the city of Pelotas, in southern Rio Grande do Sul, an endemic area for Chagas disease. Ten subjects were found positive for T...
November 30, 2016: Brazilian Journal of Infectious Diseases
https://www.readbyqxmd.com/read/27914220/modulation-of-the-innate-immune-related-genes-expression-in-h9n2-avian-influenza-virus-infected-chicken-macrophage-like-cells-hd11-in-response-to-escherichia-coli-lps-stimulation
#16
Xuefeng Qi, Caihong Liu, Ruiqiao Li, Huizhu Zhang, Xingang Xu, Jingyu Wang
Macrophages play important roles in mediating virus-induced innate immune responses and are thought to be involved in the pathogenesis of bacterial superinfections. The innate immune response initiated by both low pathogenicity AIV and bacterial superinfection in their avian host is not fully understood. We therefore determine the transcripts of innate immune-related genes following avian H9N2 AIV virus infection and E. coli LPS co-stimulation of avian macrophage-like cell line HD11 cells. More pronounced expression of pro-inflammatory cytokines (IL-6 and IL-1β) as well as the inflammatory chemokines (CXCLi1 and CXCLi2) was observed in virus infected plus LPS treated HD11 cells compared to H9N2 virus solely infected control...
November 17, 2016: Research in Veterinary Science
https://www.readbyqxmd.com/read/27914213/parental-support-for-human-papilloma-virus-vaccination-by-adolescents-in-ibadan-north-local-government-area-ibadan-nigeria
#17
Magbagbeola David Dairo, Moradeke Omoyemi Adeleke, Adetokunbo Taophic Salawu, Ayobami David Adewole
BACKGROUND: Despite changing sexual norms and mores generally perceived to be permissive of sexual expression, parents continue to serve as gateways to uptake of reproductive health services and commodities in our cultural settings. However, their support for adolescent uptake of human papilloma virus (HPV) vaccine are not well explored and documented. This study aims to assess parental knowledge and awareness of HPV infection and cervical cancer and their support for HPV vaccination for their adolescent children...
December 3, 2016: International Journal of Adolescent Medicine and Health
https://www.readbyqxmd.com/read/27914202/probiotic-roles-of-lactobacillus-spp-in-swine-insights-from-gut-microbiota
#18
REVIEW
Valerie Diane V Valeriano, Marilen P Balolong, Dae-Kyung Kang
The use of lactobacilli as probiotics in swine has been gaining attention due to their ability to improve growth performance and carcass quality, prevent gastrointestinal infection, and most importantly, their 'generally recognised as safe' status. Previous studies support the potential of lactobacilli to regulate host immune systems, enhance gut metabolic capacities, and maintain balance in the gut microbiota. Research on swine gut microbiota has revealed complex gut microbial community structure and showed the importance of Lactobacillus to the host's health...
December 3, 2016: Journal of Applied Microbiology
https://www.readbyqxmd.com/read/27914189/analysis-of-experiences-with-exclusive-breastfeeding-among-hiv-positive-mothers-in-lusaka-zambia
#19
Alice Ngoma-Hazemba, Busisiwe Purity Ncama
BACKGROUND: Exclusive breastfeeding in the first 6 months offers protection from postnatal HIV infection but remains low in resource-poor settings. Documentation of experiences with exclusive breastfeeding is needed to strengthen infant feeding counselling by health care workers. OBJECTIVE: To explore HIV-positive mothers' experiences with exclusive breastfeeding during the first 6 months of the infant's life. DESIGN: A health facility- and community-based exploratory qualitative study was conducted among 30 HIV-positive mothers practising exclusive breastfeeding and meeting the selection criteria...
2016: Global Health Action
https://www.readbyqxmd.com/read/27914182/positive-feelings-during-pregnancy-early-feeding-practices-and-infant-health
#20
Melissa A McManus, Ali A Khalessi, Joyce Lin, Jahanzeb Ashraf, Stephanie M Reich
BACKGROUND: Early parenting practices, like infant feeding, can impact children's physical health. Additionally, negative prenatal maternal affect can influence feeding choices, like breastfeeding, and can have a detrimental effect on children's health. However, little is known about the contribution of positive maternal affect during pregnancy on feeding practices and children's health. METHOD: This study explored whether positive prenatal feelings influenced children's health during the first 18 months, and whether early feeding practices mediated the relationship between these two variables...
December 3, 2016: Pediatrics International: Official Journal of the Japan Pediatric Society
keyword
keyword
53835
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"