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Bacteriology

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https://www.readbyqxmd.com/read/28733605/genexpert-mtb-rif-assay-in-the-diagnosis-of-urinary-tuberculosis-from-urine-specimens
#1
Yu Pang, Yuanyuan Shang, Jie Lu, Qian Liang, Lingling Dong, Yunxu Li, Liping Zhao, Guanglu Jiang, Hairong Huang
Conventional bacteriological methods are not generally helpful in diagnosing urinary tuberculosis (UTB). GeneXpert is endorsed for the detection of pulmonary tuberculosis, whereas the data on its utility for urine specimens is limited. In this study, we aimed to evaluate its performance on urine specimens in a country with high TB incidence. A total of 163 suspected UTB patients were consecutively enrolled in the analysis, including 37 (22.7%) culture-positive and 44 (27.0%) clinically diagnosed UTB cases. Compared with conventional culture, the sensitivity of GeneXpert (94...
July 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28733314/effects-of-an-airway-clearance-device-on-inflammation-bacteriology-and-mucus-transport-in-bronchiectasis
#2
Joana Tambascio, Hugo Celso Dutra de Souza, Roberto Martinez, José Antônio Baddini-Martinez, Peter John Barnes, Ada Clarice Gastaldi
BACKGROUND: Bronchiectasis is characterized by abnormal and permanent dilation of the bronchi, caused by the perpetuation of inflammation and impairment of mucociliary clearance. Physiotherapy techniques can help to decrease the retention of respiratory secretions. The flutter valve combines high-frequency oscillation and positive expiratory pressure to facilitate the removal of secretions. We evaluated the effects of the flutter valve on sputum inflammation, microbiology, and transport of respiratory secretions in patients with bronchiectasis...
August 2017: Respiratory Care
https://www.readbyqxmd.com/read/28731836/mortality-rate-and-antibiotic-resistance-in-complicated-diverticulitis-report-of-272-consecutive-patients-worldwide-a-prospective-cohort-study
#3
Federico Coccolini, Mattia Trevisan, Giulia Montori, Massimo Sartelli, Fausto Catena, Marco Ceresoli, Antonio Costanzo, Arianna Heyer, Luca Ansaloni
BACKGROUND: Complicated diverticulitis (CD) is a common problem for surgeons. In treating it, as a general principle, every verified source of infection should be controlled. Supplementary antimicrobial management involves a delicate balance of optimizing empirical therapy while reducing unnecessary antibiotic use. The necessity to know the most frequent infecting pathogens and their spectra of resistance is becoming pivotal. The aim of this study was to determine the microbiologic profile of complicated intra-abdominal infections (IAIs) secondary to CD, to analyze the role of empirical antimicrobial therapy, and to describe the clinical aspects of CD worldwide...
July 21, 2017: Surgical Infections
https://www.readbyqxmd.com/read/28729430/imaging-chemokine-receptor-cxcr4-in-chronic-infection-of-the-bone-with-68-ga-pentixafor-pet-ct-first-insights
#4
Caroline Bouter, Birgit Meller, Carsten Oliver Sahlmann, Wieland Staab, Hans Jürgen Wester, Saskia Kropf, Johannes Meller
Due to its role in infection and inflammatory processes the chemokine receptor CXCR4 might be a potent target in imaging of infectious and inflammatory diseases. The aim of this pilot study was to determine whether the CXCR4 ligand (68)Ga-Pentixafor is suitable for imaging chronic infection of the bone. Methods: The study comprises 14 patients with suspected infection of the skeleton that underwent (68)Ga-Pentixafor-(68)Ga-Pentixafor-Positron emission tomography/computed tomography(PET/CT) between 04/2015 and 02/2017 in our facility...
July 20, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/28724376/sonication-contribution-to-identifying-prosthetic-joint-infection-with-ralstonia-pickettii-a-case-report-and-review-of-the-literature
#5
Rares Mircea Birlutiu, Mihai Dan Roman, Razvan Silviu Cismasiu, Sorin Radu Fleaca, Crina Maria Popa, Manuela Mihalache, Victoria Birlutiu
BACKGROUND: In the context of an increase number of primary and revision total hip and total knee arthroplasty performed yearly, an increased risk of complication is expected. Prosthetic joint infection (PJI) remains the most common and feared arthroplasty complication. Ralstonia pickettii is a Gram-negative bacterium, that has also been identified in biofilms. It remains an extremely rare cause of PJI. There is no report of an identification of R. pickettii on an extracted spacer loaded with antibiotic...
July 19, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28724243/extensively-and-multi-drug-resistant-acinetobacter-baumannii-recovered-from-technosol-at-a-dump-site-in-croatia
#6
Jasna Hrenovic, Goran Durn, Martina Seruga Music, Svjetlana Dekic, Tamara Troskot-Corbic, Dijana Skoric
In a karst pit above City of Rijeka in Croatia the hazardous industrial waste was continuously disposed from 1955 to 1990, and later it was periodically used as an illegal dump site. The surface part of a technosol at the edge of dump was analysed mineralogically, geochemically and bacteriologically. From the technosol rich in petroleum hydrocarbons and heavy metals three isolates of Acinetobacter baumannii were recovered. Isolates from technosol shared many features that are previously described for clinically isolates: the affiliation to IC1 and 2, multi-drug resistant (MDR) or extensively drug-resistant (XDR) antibiotic resistance profile, carbapenem resistance mediated by blaOXA72 and blaOXA23 genes, and the expression of virulence factors...
July 15, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28722329/prevalence-of-salmonella-among-waterfowl-along-the-texas-gulf-coast
#7
M K Grigar, K J Cummings, S C Rankin
Migratory waterfowl may play a role in the ecology and transmission of zoonotic pathogens, given their ability to travel long distances and their use of varied habitats. Our objectives were to estimate the prevalence of Salmonella among waterfowl along the Texas Gulf coast and to characterize the isolates. Faecal samples were collected from hunter-harvested waterfowl at four wildlife management areas from September through November, 2016. Standard bacteriologic culture methods were used to isolate Salmonella from samples, and isolates were characterized by serotyping and anti-microbial susceptibility testing...
July 19, 2017: Zoonoses and Public Health
https://www.readbyqxmd.com/read/28720301/a-quantitative-swab-is-a-good-non-invasive-alternative-to-a-quantitative-biopsy-for-quantifying-bacterial-load-in-wounds-healing-by-second-intention-in-horses
#8
L L Van Hecke, K Hermans, M Haspeslagh, K Chiers, E Pint, F Boyen, A M Martens
The aim of this study was to evaluate different techniques for diagnosing wound infection in wounds healing by second intention in horses and to assess the effect of a vortex and sonication protocol on quantitative bacteriology in specimens with a histologically confirmed biofilm. In 50 wounds healing by second intention, a clinical assessment, a quantitative swab, a semi-quantitative swab, and a swab for cytology were compared to a quantitative tissue biopsy (reference standard). Part of the biopsy specimen was examined histologically for evidence of a biofilm...
July 2017: Veterinary Journal
https://www.readbyqxmd.com/read/28719498/incidence-of-active-tuberculosis-and-cohort-retention-among-adolescents-in-western-kenya
#9
Videlis Nduba, Anna H Van't Hoog, Ellen M H Mitchell, Martien Borgdorff, Kayla F Laserson
SETTING: Siaya County, with the highest tuberculosis notification rates in Kenya. OBJECTIVE: To determine the incidence of active tuberculosis and one year cohort retention in 12-18 year old adolescents, in preparation for Phase III tuberculosis vaccine trials. METHODS: Adolescents were enrolled and followed up for 1-2 years to determine tuberculosis incidence. Adolescents with a positive tuberculin skin test (TST), history of cohabitation with a tuberculosis case, or at least one tuberculosis symptom received clinical and sputum examination and a chest radiograph...
July 14, 2017: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/28719258/impact-of-a-food-safety-campaign-on-streptococcus-suis-infection-in-humans-in-thailand
#10
Dan Takeuchi, Anusak Kerdsin, Yukihiro Akeda, Piphat Chiranairadul, Phacharaphan Loetthong, Nutchada Tanburawong, Prasanee Areeratana, Panarat Puangmali, Kasean Khamisara, Wirasinee Pinyo, Rapeepun Anukul, Sutit Samerchea, Punpong Lekhalula, Tatsuya Nakayama, Kouji Yamamoto, Masayo Hirose, Shigeyuki Hamada, Surang Dejsirilert, Kazunori Oishi
AbstractStreptococcus suis is an important zoonotic pathogen in swine and humans that causes sepsis and meningitis. Our previous study in Thailand showed that the prevalence of S. suis infection in humans, especially in northern areas of Thailand, and the transmission of the pathogen occurred mainly through the consumption of traditional raw pork products. Considering the high incidence proportion and mortality rate of the disease as an important public health problem, we implemented a food safety campaign in the Phayao Province in northern Thailand in 2011...
June 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28718274/-microbiome-and-next-generation-sequencing
#11
REVIEW
A Suárez Moya
The human microbiome is an internal ecosystem that refers to the community of microorganisms that populate the human body. These microorganisms are essential to support his health, because the interaction between the host immune system and microorganisms, provide the host with protection against pathogens, and contributes to the preservation of health. Bacteriological culture has been the basis for traditional microbiology; however, most of the bacterial forms observed in nature cannot be isolated with laboratory culture methods...
July 17, 2017: Revista Española de Quimioterapia: Publicación Oficial de la Sociedad Española de Quimioterapia
https://www.readbyqxmd.com/read/28718238/bacteriology-of-diabetic-foot-in-tertiary-care-hospital-frequency-antibiotic-susceptibility-and-risk-factors
#12
Syeda Sadia Amjad, Jamal Zafar, Nadia Shams
BACKGROUND: Diabetic foot being one of the frequent and disabling complications of diabetes. In view of widespread regional variation in causative organisms and antimicrobial susceptibility, the current study aimed to determine frequency of causative organisms, their antimicrobial susceptibility and associated risk factors. METHODS: This descriptive cross-sectional study was conducted in 6 months' duration at dept. of Medicine; PIMS Hospital Islamabad. Type 2 Diabetes mellitus patients with diabetic foot ulcer were enrolled after informed consent...
April 2017: Journal of Ayub Medical College, Abbottabad: JAMC
https://www.readbyqxmd.com/read/28716203/testing-of-milk-replacers-for-mycobacterium-avium-subsp-paratuberculosis-by-pcr-and-bacterial-culture-as-a-possible-source-for-johne-s-disease-paratuberculosis-in-calves
#13
Johannes Lorenz Khol, Anna Lena Braun, Iva Slana, Petr Kralik, Thomas Wittek
Johne's disease (paratuberculosis) is caused by Mycobacterium avium subsp. paratuberculosis (MAP) and can lead to severe economic losses in the affected cattle herds. The transmission of the disease occurs mainly orally, by the ingestion of MAP, which is shed in the feces and milk of infected animals. Calves show a high susceptibility for the infection compared to adult animals. The use of milk replacers can, therefore, contribute to the prevention of the transmission of the disease to calves in MAP-positive herds by preventing the ingestion of the bacterium with milk from infected animals...
September 1, 2017: Preventive Veterinary Medicine
https://www.readbyqxmd.com/read/28713792/shiga-toxin-producing-escherichia-coii-in-slaughtered-pigs-and-pork-products
#14
Lia Bardasi, Roberta Taddei, Ilaria Fiocchi, Maria Francesca Pelliconi, Mattia Ramini, Elena Toschi, Giuseppe Merialdi
During the years 2015-2016, 83 faecal samples were collected at slaughter from pigs reared in farms located in Central-Northern Italy. During the years 2014-2016 a total of 562 pork products [465 not-readyto-eat (NRTE) and 97 ready-to-eat (RTE) products] were collected from retail outlets, large retailers and processing plants. The samples were analysed according to ISO TS 13136:2012. Out of 83 swine faecal samples, 77 (92.8%) resulted stx-positive by real time polymerase chain reaction (PCR), 5 stx2+ and 1 stx1+ Shiga toxin-producing Escherichia coli (STEC) strains were isolated...
April 13, 2017: Italian Journal of Food Safety
https://www.readbyqxmd.com/read/28713083/regional-features-of-the-microbial-landscape-of-urine-and-comparative-evaluation-of-antimicrobial-therapy-in-children-with-cystitis
#15
Tetyana O Kryuchko, Vira P Kharshman, Inna M Nesina, Nataliia V Kuzmenko, Jaroslava M Oleksiienko
INTRODUCTION: Growing resistance of pathogens to antibiotics, including cross-resistance to other antimicrobial classes that are used in the treatment of recurrent infections of the lower urinary system in children demands constant control of issues of regional antibiotic resistance. In the present days, in the empirical treatment of such patients physicians still choose medications with preserved activity in relation to E. coli. The aim of our study was to investigate the regional features of microbial landscape of urine in children with cystitis and study the efficacy of 7-day administration of Furamag medicinal drug for the treatment of recurrent episodes of this disease in children...
2017: Wiadomości Lekarskie: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/28705722/identification-characterization-and-expression-analysis-of-tlr5-in-the-mucosal-tissues-of-turbot-scophthalmus-maximus-l-following-bacterial-challenge
#16
Fengqiao Liu, Baofeng Su, Qiang Fu, Mei Shang, Chengbin Gao, Fenghua Tan, Chao Li
TLRs (Toll-like receptors) are very important pathogen pattern recognition receptors, which control the host immune responses against pathogens through recognition of molecular patterns specific to microorganisms. In this regard, investigation of the turbot TLRs could help to understand the immune responses for pathogen recognition. Here, transcripts of two TLRs (TLR5a and TLR5b) were captured, and their protein structures were also predicted. Meanwhile, we characterized their expression patterns with emphasis on mucosal barriers following different bacterial infection...
July 10, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28705198/evaluation-of-a-multiplex-real-time-pcr-for-detection-of-four-bacterial-agents-commonly-associated-with-bovine-respiratory-disease-in-bronchoalveolar-lavage-fluid
#17
Henk J Wisselink, Jan B W J Cornelissen, Fimme J van der Wal, Engbert A Kooi, Miriam G Koene, Alex Bossers, Bregtje Smid, Freddy M de Bree, Adriaan F G Antonis
BACKGROUND: Pasteurella multocida, Mannheimia haemolytica, Histophilus somni and Trueperella pyogenes are four bacterial agents commonly associated with bovine respiratory disease (BRD). In this study a bacterial multiplex real-time PCR (the RespoCheck PCR) was evaluated for the detection in bronchoalveolar lavage fluid (BALF) of these four bacterial agents. RESULTS: The analytical sensitivity of the multiplex real-time PCR assay determined on purified DNA and on bacterial cells of the four target pathogens was one to ten fg DNA/assay and 4 × 10(-1) to 2 × 10(0) CFU/assay...
July 13, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/28702979/use-of-platelet-rich-plasma-in-human-infertility
#18
G V L Colombo, V Fanton, D Sosa, E Criado Scholz, J Lotti, S E Aragona, T Lotti
Successful embryo implantation requires good quality embryo but also needs a receptive endometrium site. In our clinical practice, we daily verify that an adequate endometrial growth is reached for successful implantation. To understand whether platelet rich plasma (PRP) can improve endometrium thickness and performance, PRP treatment was carried out after at least three of the classic medical protocols currently in use had been unsuccessfully adopted. Eight patients with more than 3 cryo-transfers cancelled because of failure of endometrial growth, defined as endometrium less than 6 mm, with negative hysteroscopic screening for endometrial pathology, and with negative bacteriologic screening, before present and all previous treatment, were selected to undergo PRP treatment...
July 13, 2017: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/28701951/pharmacokinetic-pharmacodynamic-modeling-of-tulathromycin-against-pasteurella-multocida-in-a-porcine-tissue-cage-model
#19
Qiaoyi Zhou, Guijun Zhang, Qin Wang, Wenguang Liu, Yan Huang, Pengling Yu, Yanqin Li, Huanzhong Ding, Binghu Fang
Tulathromycin, a macrolide antibiotic, is used for the treatment of respiratory disease in cattle and swine. The aim of our study was to investigate the in vitro and ex vivo activities of tulathromycin in serum, (non-inflamed) transudate, and (inflamed) exudate against Pasteurella multocida in piglets. The pharmacokinetics properties of tulathromycin were studied for serum, transudate, and exudate using a tissue cage model. In vitro antibiotic susceptibility of P. multocida and dynamic time-kill curve experiments over eight tulathromycin concentrations were determined...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28697621/undiagnosed-tuberculosis-in-patients-with-hiv-infection-who-present-with-severe-anaemia-at-a-district-hospital
#20
Mbulelo Mntonintshi, Don O'Mahony, Sikhumbuzo Mabunda, Kakia A F Namugenyi
BACKGROUND: Tuberculosis (TB) is a major cause of severe anaemia in patients with human immunodeficiency virus (HIV) infection in South Africa. However, TB can be difficult to diagnose as it may be extra pulmonary and paucibacillary. AIM: The aim of this study was to investigate undiagnosed TB in patients with HIV infection and severe anaemia and to identify the optimal investigations for diagnosing TB. SETTING: Mthatha General Hospital, a district hospital...
June 30, 2017: African Journal of Primary Health Care & Family Medicine
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