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Microbiology

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https://www.readbyqxmd.com/read/29775789/e-coli-encoding-blandm-5-associated-with-community-acquired-uti-cases-with-unusual-mic-creep-like-phenomenon-against-imipenem
#1
Varsha Rani Gajamer, Amitabha Bhattacharjee, Deepjyoti Paul, Chandrayee Deshamukhya, Ashish Kr Singh, Nilu Pradhan, Hare Krishna Tiwari
OBJECTIVES: Carbapenemase-producing Escherichia coli are of major clinical concern. The present study aimed to identify NDM-5 producing E.coli associated with community-acquired urinary tract infection, co-harboring ESBL genes and a pattern of imipenem MIC creep. METHODS: A total of 973 urine samples were collected from females of age between 18-49 diagnosed with UTI. Isolates were identified by standard microbiological procedures. Presence of blaNDM and ESBL genes was determined by PCR assay and sequencing...
May 15, 2018: Journal of Global Antimicrobial Resistance
https://www.readbyqxmd.com/read/29774878/-etiology-and-risk-factors-for-meningitis-and-or-bacteremia-after-craniotomy-for-patients-with-glioma
#2
Yaning Wang, Yu Wang, Wenbin Ma
To evaluate the incidence and microbiological profile of meningitis and/or bacteremia after craniotomy in patients with glioma and analyze the risk factors relevant to postoperative meningitis.
 Methods: All demographic data, etiological data and clinical data for hospitalized patients who underwent craniotomy in Dept. of Neurosurgery of Peking Union Medical College Hospital between Jan. 2013 to Dec. 2017 were recorded.
 Results: The incidence of post-craniotomy meningitiswas 7.73%, bacteremia was 2.21% and meningitis combined with bacteremia was 1...
April 28, 2018: Zhong Nan da Xue Xue Bao. Yi Xue Ban, Journal of Central South University. Medical Sciences
https://www.readbyqxmd.com/read/29774547/petunia-as-model-for-elucidating-adventitious-root-formation-and-mycorrhizal-symbiosis-at-the-nexus-of-physiology-genetics-microbiology-and-horticulture
#3
Uwe Druege, Philipp Franken
Adventitious root formation in cuttings and establishment of arbuscular mycorrhizal symbiosis reflect the enormous plasticity of plants and are key factors in the efficient and sustainable clonal propagation and production of ornamental crops. Based on the high importance of Petunia hybrida for the European and US annual bedding plant markets and its suitability as a model for basic plant sciences, petunia has been established as an experimental system for elucidating the molecular and physiological processes underlying adventitious root formation and mycorrhizal symbiosis...
May 17, 2018: Physiologia Plantarum
https://www.readbyqxmd.com/read/29774477/cefepime-vs-cefoperazone-sulbactam-in-combination-with-amikacin-as-empirical-antibiotic-therapy-in-febrile-neutropenia
#4
M Ponraj, Biswajit Dubashi, B H Harish, S Kayal, S L Cyriac, Jogamaya Pattnaik, K Ranjith, Unni S Pillai, Naresh Jadhav, Kiran K Matta, Jagdeep Singh, Esha Jaffa, Bhanu Prakash
PURPOSE: Beta lactams are standard empirical therapy for febrile neutropenia (FN). The aim of this study was to evaluate the efficacy and safety of cefepime monotherapy compared with cefoperazone/sulbactam plus amikacin (CS + A) for empirical treatment of high risk FN. METHODS: One hundred seventy-five patients with 336 FN episodes were randomized to receive either cefepime (2 g q8h for adults and 50 mg/kg q8h for children) or CS (2 g q8h for adults and 50 mg/kg q8h for children) plus amikacin (15 mg/kg once a day)...
May 17, 2018: Supportive Care in Cancer: Official Journal of the Multinational Association of Supportive Care in Cancer
https://www.readbyqxmd.com/read/29773926/comparative-analysis-of-airborne-bacteria-and-fungi-in-two-salt-mines-in-poland
#5
Elżbieta Gębarowska, Wojciech Pusz, Jolanta Kucińska, Włodzimierz Kita
The aim of this work was to determine the genera or species composition and the number of colony forming units of airborne bacteria and fungi, respectively, in two salt mines in Poland "Wieliczka" (Lesser Poland) and "Polkowice-Sieroszowice" (Lower Silesia). Both of them are working environments characterized by extreme conditions, and additionally "Wieliczka," officially placed on the UNESCO World Heritage Sites' list, plays a role of tourist attraction. There are also some curative chambers located in this mine...
2018: Aerobiologia
https://www.readbyqxmd.com/read/29773905/establishing-anaerobic-hydrocarbon-degrading-enrichment-cultures-of-microorganisms-under-strictly-anoxic-conditions
#6
Rafael Laso-Pérez, Viola Krukenberg, Florin Musat, Gunter Wegener
Traditionally, the description of microorganisms starts with their isolation from an environmental sample. Many environmentally relevant anaerobic microorganisms grow very slowly, and often they rely on syntrophic interactions with other microorganisms. This impedes their isolation and characterization by classic microbiological techniques. We developed and applied an approach for the successive enrichment of syntrophic hydrocarbon-degrading microorganisms from environmental samples. We collected samples from microbial mat-covered hydrothermally heated hydrocarbon-rich sediments of the Guaymas Basin and mixed them with synthetic mineral medium to obtain sediment slurries...
June 2018: Nature Protocols
https://www.readbyqxmd.com/read/29773296/nontuberculous-mycobacterial-and-aspergillus-infections-among-cadaveric-lung-transplant-recipients-in-japan
#7
Kazunobu Tachibana, Yoshinori Okada, Yasushi Matsuda, Kentaroh Miyoshi, Takahiro Oto, Toyofumi F Chen-Yoshikawa, Hiroshi Date, Masato Minami, Meinoshin Okumura, Akinori Iwasaki, Takeshi Shiraishi, Sumiko Maeda, Yuji Matsumura, Takahiro Nakajima, Ichiro Yoshino, Seiji Hayashi
BACKGROUND: Lung transplantation is an effective treatment modality for respiratory failure. Chronic lung infections, including infections caused by nontuberculous mycobacteria (NTM) and Aspergillus, are difficult to control, and uncontrolled infections are relative contraindications for lung transplantation. However, few reports have documented the incidence and outcome of these infections in lung transplant recipients. METHODS: To quantify the incidence and outcomes of colonization and disease caused by NTM and aspergillosis in recipients before and after lung transplantation, we reviewed the medical records and microbiology data from 240 consecutive cadaveric lung transplant recipients between 2000 and 2014...
May 2018: Respiratory Investigation
https://www.readbyqxmd.com/read/29772918/cutaneous-nontuberculous-mycobacterial-infections-in-alberta-canada-an-epidemiologic-study-and-review
#8
Megan A Sander, Judith L Isaac-Renton, Gregory J Tyrrell
BACKGROUND: Cutaneous infections caused by nontuberculous mycobacteria (NTM) occur infrequently. Nonetheless, the incidence of NTM infections is reported to be increasing. In Canada, cutaneous NTM infections have not been well described. OBJECTIVES: A database review from 2006 to 2016 was done to assess species frequency, incidence, and trends of the most common cutaneous NTMs in the province of Alberta, Canada. We also reviewed major diagnostic and epidemiologic aspects of NTM cutaneous infections with a focus on Mycobacterium marinum...
May 1, 2018: Journal of Cutaneous Medicine and Surgery
https://www.readbyqxmd.com/read/29772838/statistical-analysis-of-bathing-water-quality-in-puglia-region-italy
#9
Daniela Malcangio, Claudio Donvito, Nicola Ungaro
Geostatistic analysis was applied to the dataset from multi-year monitoring, in the Apulian marine-coastal zone (Mediterranean Sea, Italy), on the presence and abundance of intestinal Enterococci and Escherichia coli , microbiological indicators of faecal contamination at the sea. The same faecal contamination can be considered as the main cause of pollution phenomenon under current Italian and European regulations for the bathing waters (Italian Government Decree 116/2008, European Directive 2006/7/CE). The main objective of the study is to verify, taking into the account the anthropic pressures acting on the coastal zone, the efficiency of the Apulian regional monitoring plan currently in force for the assessment of bathing waters quality, with a view to a hypothetical reduction of sample collection points...
May 17, 2018: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29772749/endodontic-microbiology-a-special-issue-of-dentistry-journal
#10
EDITORIAL
Prasanna Neelakantan
Understanding microbiology, specifically biofilm biology is an essential component of creating targeted therapeutic modalities that are effective and efficient.[...].
May 17, 2018: Dentistry journal
https://www.readbyqxmd.com/read/29772370/does-nasal-carriage-of-staphylococcus-aureus-increase-the-risk-of-post-operative-infections-after-elective-spine-surgery-do-most-infections-occur-in-carriers
#11
Owoicho Adogwa, Victoria D Vuong, Aladine A Elsamadicy, Daniel T Lilly, Shyam A Desai, Syed Khalid, Joseph Cheng, Carlos A Bagley
BACKGROUND: Wound infections following adult spinal deformity surgery place a high toll on patients, providers, and the healthcare system. Staphylococcus aureus is a common cause of postoperative wound infections, and nasal colonization by this organism may be an important factor development of surgical site infections (SSI's). The aim is to investigate whether post-operative surgical site infections after elective spine surgery occur at a higher rate in patients with Methicillin-Resistant Staphylococcus Aureus (MRSA) nasal colonization...
May 14, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29772229/polybacterial-community-analysis-in-human-conjunctiva-through-16s-rrna-gene-libraries
#12
Deepthi KrishnanNair Geetha, Jayasudha Rajagopalaboopathi, Girish Rameshan Nair, Manikandan Palanisamy, Ram Rammohan, Narendran Venkatapathy, Prabagaran Solai Ramatchandirane
The conjunctival sac of healthy human harbours a variety of microorganisms. When the eye is compromised, an occasional inadvertent spread happens to the adjacent tissue, resulting in bacterial ocular infections. Microbiological investigation of the conjunctival swab is one of the broadly used modality to study the aetiological agent of conjunctiva. However, most of the time such methods yield unsatisfactory results. Hence, the present study intends to identify the bacterial community in human conjunctiva of pre-operative subjects through 16S rRNA gene libraries...
May 14, 2018: Experimental Eye Research
https://www.readbyqxmd.com/read/29771872/outbreaks-associated-with-treated-recreational-water-united-states-2000-2014
#13
Michele C Hlavsa, Bryanna L Cikesh, Virginia A Roberts, Amy M Kahler, Marissa Vigar, Elizabeth D Hilborn, Timothy J Wade, Dawn M Roellig, Jennifer L Murphy, Lihua Xiao, Kirsten M Yates, Jasen M Kunz, Matthew J Arduino, Sujan C Reddy, Kathleen E Fullerton, Laura A Cooley, Michael J Beach, Vincent R Hill, Jonathan S Yoder
Outbreaks associated with exposure to treated recreational water can be caused by pathogens or chemicals in venues such as pools, hot tubs/spas, and interactive water play venues (i.e., water playgrounds). During 2000-2014, public health officials from 46 states and Puerto Rico reported 493 outbreaks associated with treated recreational water. These outbreaks resulted in at least 27,219 cases and eight deaths. Among the 363 outbreaks with a confirmed infectious etiology, 212 (58%) were caused by Cryptosporidium (which causes predominantly gastrointestinal illness), 57 (16%) by Legionella (which causes Legionnaires' disease, a severe pneumonia, and Pontiac fever, a milder illness with flu-like symptoms), and 47 (13%) by Pseudomonas (which causes folliculitis ["hot tub rash"] and otitis externa ["swimmers' ear"])...
May 18, 2018: MMWR. Morbidity and Mortality Weekly Report
https://www.readbyqxmd.com/read/29770767/pelvic-abscess-drainage-outcome-with-factors-affecting-the-clinical-success
#14
Devrim Akıncı, Onur Ergun, Çağdaş Topel, Türkmen Çiftçi, Okan Akhan
PURPOSE: We aimed to evaluate the success and complication rates of image-guided pelvic abscess drainage with emphasis on factors affecting the clinical success. METHODS: During a 7-year period, 185 pelvic abscesses were treated in 163 patients under ultrasonography and fluoroscopy (n=140) or computed tomography (n=45) guidance with transabdominal (n=107), transvaginal (n=39), transrectal (n=21) and transgluteal (n=18) approaches. Abscess characteristics (etiology, number, size, intrastructure, microbiological content, presence of fistula), patient demographics (age, sex, presence of malignancy, primary disease, antibiotic treatments), procedure-related factors (guidance method, access route, catheter size) and their effects on clinical success, complications, and duration of catheterization were statistically analyzed...
May 2018: Diagnostic and Interventional Radiology: Official Journal of the Turkish Society of Radiology
https://www.readbyqxmd.com/read/29770574/microbiome-yarns-microbiome-of-the-built-environment-paranormal-microbiology-and-the-power-of-single-cell-genomics1-2-3-4
#15
EDITORIAL
Kenneth Timmis, Franziska Jebok, Manfred Rohde, Gabriella Molinari
No abstract text is available yet for this article.
May 16, 2018: Microbial Biotechnology
https://www.readbyqxmd.com/read/29770172/prevention-of-cross-contamination-risk-by-disinfection-of-irreversible-hydrocolloid-impression-materials-with-ozonated-water
#16
Omid Savabi, Farahnaz Nejatidanesh, Kamran Poshang Bagheri, Leila Karimi, Ghazal Savabi
Background: Disinfection of dental impression is mandatory for preventing the cross infection between dental staff and dental laboratory. Ozone as a disinfectant can be used in various ways in dentistry. The aim of this study was to evaluate the efficacy of ozonated water for disinfection of irreversible hydrocolloid impression materials and preventing cross-contamination. Methods: Thirty-two circular specimens (1 cm diameter and 2 mm thickness) of irreversible hydrocolloid impression material were made...
2018: International Journal of Preventive Medicine
https://www.readbyqxmd.com/read/29770096/canadian-recommendations-for-laboratory-interpretation-of-multiple-or-extensive-drug-resistance-in-clinical-isolates-of-enterobacteriaceae-acinetobacter-species-and-pseudomonas-aeruginosa
#17
G J German, M Gilmour, G Tipples, H J Adam, H Almohri, J Bullard, T Dingle, D Farrell, G Girouard, D Haldane, L Hoang, P N Levett, R Melano, J Minion, R Needle, S N Patel, R Rennie, R C Reyes, J Longtin, M R Mulvey
The goal of this document was to provide Canadian laboratories with a framework for consistent reporting and monitoring of multidrug resistant organisms (MDRO) and extensively drug resistant organisms (XDRO) for common gram-negative pathogens. This is the final edition of the interim recommendations, which were modified after one year of broad consultative review. This edition represents a consensus of peer-reviewed information and was co-authored by the Canadian Public Health Laboratory Network and the Canadian Association of Clinical Microbiology and Infectious Diseases...
January 4, 2018: Canada Communicable Disease Report, Relevé des Maladies Transmissibles Au Canada
https://www.readbyqxmd.com/read/29770055/hepatitis-a-virus-infection-associated-with-cannabis-use
#18
C Sikora, G Tipples, X-L Pang, A Andonov
We identified a case of acute Hepatitis A virus (HAV) infection linked to cannabis use. The local Public Health department received report of a man in his mid-20s with a classic presentation of hepatitis - jaundice, abdominal pain, vomiting, general malaise, and dark urine - as well as elevated serum aminotransferase levels and a positive anti-HAV IgM. Upon questioning, he reported no contact with ill individuals, or travel outside his metropolitan area. His exclusive source of water was the local municipal supply...
November 2, 2017: Canada Communicable Disease Report, Relevé des Maladies Transmissibles Au Canada
https://www.readbyqxmd.com/read/29769768/application-of-bioelectric-effect-to-reduce-the-antibiotic-resistance-of-subgingival-plaque-biofilm-an-in-vitro-study
#19
Padmini Hari, Kranthi Raja Kacharaju, Naveen Anumala, Krishnanjaneya Reddy Pathakota, Jayakumar Avula
Context: Biofilms are known for their antimicrobial resistance, and so is the subgingival plaque biofilm, the primary etiologic factor for periodontal infections. Aims: The objective of this study is to investigate if the subgingival plaque biofilm resistance can be reduced using doxycycline in the presence of low-intensity electric field (bioelectric effect). Settings and Design: The study was an in vitro microbiological study. Materials and Methods: Subgingival plaque samples from chronic periodontitis patients were collected to grow subgingival plaque biofilms on hydroxyapatite disks...
March 2018: Journal of Indian Society of Periodontology
https://www.readbyqxmd.com/read/29769498/quantitative-analysis-of-nucleic-acid-extraction-methods-for-vibrio-cholerae-using-real-time-pcr-and-conventional-pcr
#20
Z Z Hossain, J Ferdous, S M Tulsiani, P M Jensen, A Begum
The devastating diarrheal disease cholera is caused by the bacterium Vibrio cholerae. Nucleic acid extraction is the primary step for several molecular detection approaches. In order to identify the sources of cholera illness, an efficient, fast and easy DNA extraction method for toxigenic Vibrio cholerae is desired which can be applied on diverse type of samples. This methodology developmental setup study was performed in the Environmental Microbiology Lab, Department of Microbiology, University of Dhaka, Bangladesh from March 2015 to May 2015 attempted to compare three DNA extraction methods for efficient detection and quantification of Vibrio cholerae...
April 2018: Mymensingh Medical Journal: MMJ
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