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International Journal of Microbiology

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https://www.readbyqxmd.com/read/30631365/molecular-characterization-of-low-density-polyethene-ldpe-degrading-bacteria-and-fungi-from-dandora-dumpsite-nairobi-kenya
#1
Christabel Ndahebwa Muhonja, Gabriel Magoma, Mabel Imbuga, Huxley Mae Makonde
This study aimed at molecular and biochemical characterization of low-density polyethene (LDPE) degrading fungi and bacteria from Dandora dumpsite, Nairobi. Twenty bacterial and 10 fungal isolates were identified using 16S rDNA and 18S rDNA sequences for bacteria and fungi, respectively. The highest fungal degradation was attributed to Aspergillus oryzae strain A5,1 while the highest bacterial degradation was attributed to Bacillus cereus strain A5,a and Brevibacillus borstelensis strain B2,2, respectively...
2018: International Journal of Microbiology
https://www.readbyqxmd.com/read/30631364/-enterococcus-faecium-tir-domain-genes-are-part-of-a-gene-cluster-which-promotes-bacterial-survival-in-blood
#2
Theresa M Wagner, Jessin Janice, Fernanda L Paganelli, Rob J Willems, Fatemeh Askarian, Torunn Pedersen, Janetta Top, Carla de Haas, Jos A van Strijp, Mona Johannessen, Kristin Hegstad
Enterococcus faecium has undergone a transition to a multidrug-resistant nosocomial pathogen. The population structure of E. faecium is characterized by a sharp distinction of clades, where the hospital-adapted lineage is primarily responsible for bacteremia. So far, factors that were identified in hospital-adapted strains and that promoted pathogenesis of nosocomial E. faecium mainly play a role in adherence and biofilm production, while less is known about factors contributing to survival in blood. This study identified a gene cluster, which includes genes encoding bacterial Toll/interleukin-1 receptor- (TIR-) domain-containing proteins (TirEs)...
2018: International Journal of Microbiology
https://www.readbyqxmd.com/read/30595696/current-progress-in-the-structural-and-biochemical-characterization-of-proteins-involved-in-the-assembly-of-lipopolysaccharide
#3
REVIEW
Thomas E Bohl, Hideki Aihara
The lipid component of the outer leaflet of the outer membrane of Gram-negative bacteria is primarily composed of the glycolipid lipopolysaccharide (LPS), which serves to form a protective barrier against hydrophobic toxins and many antibiotics. LPS is comprised of three regions: the lipid A membrane anchor, the nonrepeating core oligosaccharide, and the repeating O-antigen polysaccharide. The lipid A portion is also referred to as endotoxin as its overstimulation of the toll-like receptor 4 during systemic infection precipitates potentially fatal septic shock...
2018: International Journal of Microbiology
https://www.readbyqxmd.com/read/30581470/methicillin-resistant-staphylococcus-aureus-mrsa-in-artisanal-cheeses-in-m%C3%A3-xico
#4
Roberto Adame-Gómez, Jeiry Toribio-Jimenez, Amalia Vences-Velazquez, Elvia Rodríguez-Bataz, Maria Cristina Santiago Dionisio, Arturo Ramirez-Peralta
Milk and dairy foods have frequently been implicated in staphylococcal food poisoning, and contaminated raw milk is often involved. The aim of the study was to determine the occurrence of methicillin-resistant Staphylococcus aureus (MRSA) in raw cow milk cheese produced in Mexico. A total of 78 unpasteurized cow milk cheese samples were screened for S. aureus . The isolates were identified as S. aureus based on morphology, Gram stain, catalase test, coagulase test, and mannitol salt agar fermentation. Isolates were subjected to biotyping, the methicillin resistance was analyzed using the disk diffusion, and the Staphylococcus enterotoxin A (SEA) production was examined by a dot-blot analysis...
2018: International Journal of Microbiology
https://www.readbyqxmd.com/read/30534155/characterization-of-erythromycin-and-tetracycline-resistance-in-lactobacillus-fermentum-strains
#5
Elizaveta Anisimova, Dina Yarullina
Lactobacillus fermentum colonizing gastrointestinal and urogenital tracts of humans and animals is widely used in manufacturing of fermented products and as probiotics. These bacteria may function as vehicles of antibiotic resistance genes, which can be transferred to pathogenic bacteria. Therefore, monitoring and control of transmissible antibiotic resistance determinants in these microorganisms is necessary to approve their safety status. The aim of this study was to characterize erythromycin and tetracycline resistance of L...
2018: International Journal of Microbiology
https://www.readbyqxmd.com/read/30532784/antimicrobial-effects-of-egyptian-local-chicory-cichorium-endivia-subsp-pumilum
#6
Ahmed M Amer
The discovery of novel and more efficient antimicrobial agents from natural sources like plants is one of the most important ways through which the growing threat of antibiotic-resistant pathogens can be overcome. Herein, we report the potential antimicrobial activity of Cichorium endivia L. subsp. pumilum . Different concentrations of various solvent extracts prepared from several parts of chicory were tested for their antimicrobial effect against a panel of microorganisms. The antimicrobial activity was analyzed using the well diffusion method, where zones of inhibition were used as indicators of antimicrobial activity...
2018: International Journal of Microbiology
https://www.readbyqxmd.com/read/30532783/syphilis-among-female-sex-workers-results-of-point-of-care-screening-during-a-cross-sectional-behavioral-survey-in-burkina-faso-west-africa
#7
Henri Gautier Ouedraogo, Ivlabehire Bertrand Meda, Issaka Zongo, Odette Ky-Zerbo, Ashley Grosso, Benoit Cesaire Samadoulougou, Grissoum Tarnagda, Kadari Cisse, Apoline Sondo, Nongoba Sawadogo, Yves Traoré, Nicolas Barro, Stefan Baral, Seni Kouanda
Background: Syphilis among female sex workers (FSW) remains a public health concern due to its potential impact on their health and the possibility of transmission to their clients, partners, and children. Recent data on the prevalence of syphilis in the population in West Africa are scarce. The objective of this study was to measure the seroprevalence of syphilis serological markers among female sex workers in Burkina Faso. Methods: We conducted a cross-sectional survey among FSW between February 2013 and May 2014...
2018: International Journal of Microbiology
https://www.readbyqxmd.com/read/30515216/prevalence-antimicrobial-susceptibility-pattern-and-associated-factors-of-urinary-tract-infections-among-adult-diabetic-patients-at-metu-karl-heinz-referral-hospital-southwest-ethiopia
#8
Tesfaye Gutema, Fitsum Weldegebreal, Dadi Marami, Zelalem Teklemariam
Urinary tract infection causes considerable morbidity in diabetic patients and if complicated, can cause severe renal damage and life-threatening infections. The escalating antimicrobial resistance rate among bacteria over the past years is another concern in the treatment of urinary tract infections. This study investigated the prevalence, antimicrobial susceptibility pattern of the isolates and associated factors of urinary tract infection among adult diabetic patients attending Metu Karl Heinz Referral Hospital, Southwest Ethiopia...
2018: International Journal of Microbiology
https://www.readbyqxmd.com/read/30510579/etiology-of-coinfections-in-children-with-influenza-during-2015-16-winter-season-in-nepal
#9
Bishnu Prasad Upadhyay, Megha Raj Banjara, Ram Krishna Shrestha, Masato Tashiro, Prakash Ghimire
Acute respiratory infections (ARIs) are one of the major public health problems in developing countries like Nepal. Besides the influenza, several other pathogens are responsible for acute respiratory infection in children. Etiology of infections is poorly characterized at the course of clinical management, and hence empirical antimicrobial agents are used. The objective of this study was to characterize the influenza and other respiratory pathogens by real-time PCR assay. A total of 175 throat swab specimens of influenza-positive cases collected at National Influenza Center, Nepal, during the 2015/16 winter season were selected for detecting other respiratory copathogens...
2018: International Journal of Microbiology
https://www.readbyqxmd.com/read/30405717/antifungal-susceptibility-and-biofilm-production-of-candida-spp-isolated-from-clinical-samples
#10
Munmun B Marak, Biranthabail Dhanashree
Objective: The study aims to speciate clinical Candida isolates and detect their biofilm-forming ability and antifungal resistance. Methods: All the Candida spp. isolated from different clinical samples like pus, urine, blood, and body fluid were included in the study. Biofilm production was tested by the microtiter plate method. Antifungal susceptibility was studied by the disk diffusion method. Patient's demographic details such as age, sex, and clinical information were collected...
2018: International Journal of Microbiology
https://www.readbyqxmd.com/read/30402105/evaluation-of-bacillus-strains-for-plant-growth-promotion-and-predictability-of-efficacy-by-in-vitro-physiological-traits
#11
Rufus J Akinrinlola, Gary Y Yuen, Rhae A Drijber, Anthony O Adesemoye
Bacilli are commonly used as plant growth-promoting agents but can be limited in effectiveness to certain crop and soil environments. The objectives of this study were to (1) identify Bacillus strains that can be consistent in promoting the growth of corn, wheat, and soybean and (2) determine whether physiological traits expressed in vitro can be predictive of growth promotion efficacy/consistency and be used for selecting effective strains. Twelve Bacillus strains isolated from wheat rhizospheres were evaluated in greenhouse pot tests with nonsterile soil for their effects on the growth of corn, soybean, and wheat...
2018: International Journal of Microbiology
https://www.readbyqxmd.com/read/30402104/bacterioplankton-activity-in-a-meso-eutrophic-subtropical-coastal-lagoon
#12
Maria L Schmitz Fontes, Heloísa Fernandes, Manoela Brandão, Mariana Coutinho Hennemann, Raquel Aparecida Loss, Valdelúcia Maria Alves de Souza Grinevicius, Denise Tonetta, Karina Cesca, Mônica Hessel Silveira, Mara Bedin, Derce Recouvreux, Regina Vasconcellos Antônio
The aim of this study was to investigate whether the bacterioplankton activity in the meso-eutrophic Conceição Lagoon would increase significantly under allochthonous inputs of inorganic nutrients and organic carbon. Abundance and biomass of bacterioplankton were evaluated under three treatments: light (14 h light/10 h dark), complete darkness (dark-control), and nutrient (C + N + P-dark, 100 : 10 : 1) enrichments during 72 h. Nutrient enrichments promoted a significant increase in abundance (maximum of 19...
2018: International Journal of Microbiology
https://www.readbyqxmd.com/read/30386381/prevalence-and-antimicrobial-susceptibility-of-bacterial-uropathogens-isolated-from-pediatric-patients-at-yekatit-12-hospital-medical-college-addis-ababa-ethiopia
#13
Yamirot Merga Duffa, Kumera Terfa Kitila, Dereje Mamuye Gebretsadik, Adane Bitew
Background: Urinary tract infection (UTI) is considered as the most common bacterial infection seen among the pediatric patients. Objective: This study was carried out in order to determine the prevalence of urinary tract infection in pediatric patients, identify bacterial uropathogens responsible for the infection, and study the antibiotic sensitivity patterns of bacterial isolates. Materials and Methods: A cross-sectional study designed and conducted from January to April 2014...
2018: International Journal of Microbiology
https://www.readbyqxmd.com/read/30364137/evaluation-of-antimicrobial-activity-of-four-organic-acids-used-in-chicks-feed-to-control-salmonella-typhimurium-suggestion-of-amendment-in-the-search-standard
#14
Aicha El Baaboua, Mohamed El Maadoudi, Abdelhakim Bouyahya, Omar Belmehdi, Ayoub Kounnoun, Rajae Zahli, Jamal Abrini
Today, the general public has become increasingly aware of salmonellosis problems. Organic acids are known by their antimicrobial potential and commonly used for improving the quality of poultry feed. In this context, the present work evaluated the inhibitory effect of four organic acids, namely, acetic acid, citric acid, lactic acid, and tartaric acid, at different levels of contamination by Salmonella typhimurium . The neutralization of these organic acids in vitro and in the presence of one-day-old chick's organs was also investigated during the search for Salmonella serovars in birds as described in the Moroccan standard "NM 08...
2018: International Journal of Microbiology
https://www.readbyqxmd.com/read/30356383/antimicrobial-activity-of-piper-marginatum-jacq-and-ilex-guayusa-loes-on-microorganisms-associated-with-periodontal-disease
#15
Fredy Gamboa, Camila-Cristina Muñoz, Gloria Numpaque, Luis Gonzalo Sequeda-Castañeda, Sandra Janeth Gutierrez, Nohemi Tellez
Background: Chronic periodontitis is a multifactorial infectious disease, where multiple bacteria, such as Porphyromonas gingivalis , Prevotella intermedia , and Fusobacterium nucleatum are implicated. The main purpose of researching natural products is to find substances or compounds with antimicrobial activity. Aim: The objective of this work was to determine antimicrobial activity from extracts and obtained fractions from Piper marginatum Jacq and Ilex guayusa Loes on P...
2018: International Journal of Microbiology
https://www.readbyqxmd.com/read/30344610/characterization-of-pathogenic-bacteria-isolated-from-sudanese-banknotes-and-determination-of-their-resistance-profile
#16
Noha Ahmed Abd Alfadil, Malik Suliman Mohamed, Manal M Ali, El Amin Ibrahim El Nima
Background: Banknotes are one of the most exchangeable items in communities and always subject to contamination by pathogenic bacteria and hence could serve as vehicle for transmission of infectious diseases. This study was conducted to assess the prevalence of contamination by pathogenic bacteria in Sudanese banknotes, determine the susceptibility of the isolated organisms towards commonly used antibiotics, and detect some antibiotic resistance genes. Methods: This study was carried out using 135 samples of Sudanese banknotes of five different denominations (2, 5, 10, 20, and 50 Sudanese pounds), which were collected randomly from hospitals, food sellers, and transporters in all three districts of Khartoum, Bahri, and Omdurman...
2018: International Journal of Microbiology
https://www.readbyqxmd.com/read/30327672/risk-factors-for-vaginal-colonization-and-relationship-between-bacterial-vaginal-colonization-and-in-hospital-outcomes-in-women-with-obstructed-labor-in-a-ugandan-regional-referral-hospital
#17
Joseph Ngonzi, Lisa M Bebell, Joel Bazira, Yarine Fajardo, Dan Nyehangane, Yap Boum, Deborah Nanjebe, Adeline Boatin, Jerome Kabakyenga, Yves Jacquemyn, Jean-Pierre Van Geertruyden, Laura E Riley
Introduction: The proportion of women with severe maternal morbidity from obstructed labor is between 2 and 12% in resource-limited settings. Maternal vaginal colonization with group B streptococcus (GBS), Escherichia coli , and Enterococcus spp. is associated with maternal and neonatal morbidity. It is unknown if vaginal colonization with these organisms in obstructed labor women is associated with poor outcomes. Objectives: To determine whether vaginal colonization with GBS, E...
2018: International Journal of Microbiology
https://www.readbyqxmd.com/read/30305814/prevalence-of-multidrug-resistance-and-extended-spectrum-%C3%AE-lactamase-carriage-of-clinical-uropathogenic-escherichia-coli-isolates-in-riyadh-saudi-arabia
#18
Abdulaziz Alqasim, Ahmad Abu Jaffal, Abdullah A Alyousef
The prevalence of extended-spectrum β -lactamase-producing Escherichia coli (ESBL-producing E. coli ) has recently increased worldwide. This study aims at determining the antimicrobial susceptibility patterns of a collection of clinical E. coli urine isolates and evaluating the ESBL carriage of these isolates at phenotypic and genotypic levels. A total of 100 E. coli urine isolates were collected at a tertiary healthcare centre in Riyadh from January 2018 to March 2018. Antimicrobial susceptibility testing was carried out for all isolates...
2018: International Journal of Microbiology
https://www.readbyqxmd.com/read/30275835/nasal-carriage-of-methicillin-resistant-staphylococcus-aureus-among-health-care-workers-in-tertiary-and-regional-hospitals-in-dar-es-salam-tanzania
#19
Agricola Joachim, Sabrina J Moyo, Lillian Nkinda, Mtebe Majigo, Sima Rugarabamu, Elizabeth G Mkashabani, Elia J Mmbaga, Naboth Mbembati, Said Aboud, Eligius F Lyamuya
Methicillin-resistant Staphylococcus aureus (MRSA) among health care workers (HCWs) increases the risk of spreading the organism in hospital settings. A cross-sectional study was conducted between June and October 2016 among HCWs in tertiary and regional hospitals in Dar es Salaam, Tanzania, to determine the MRSA nasal carriage rate. Nasal swabs were collected from HCWs and cultured on mannitol salt agar. S. aureus was identified based on colonial morphology, Gram staining, catalase, coagulase, and DNase test results...
2018: International Journal of Microbiology
https://www.readbyqxmd.com/read/30258462/erratum-to-production-of-biosurfactants-by-soil-fungi-isolated-from-the-amazon-forest
#20
Hellen Holanda Sena, Michele Alves Sanches, Diego Fernando Silva Rocha, Walter Oliva Pinto Filho Segundo, Érica Simplício de Souza, João Vicente Braga de Souza
[This corrects the article DOI: 10.1155/2018/5684261.].
2018: International Journal of Microbiology
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