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culture and sensitivity tests

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https://www.readbyqxmd.com/read/28108390/fatal-sepsis-caused-by-multidrug-resistant-bacteroides-fragilis-harboring-a-cfia-gene-and-an-upstream-insertion-sequence-element-in-japan
#1
Itaru Nakamura, Kotaro Aoki, Yuri Miura, Tetsuo Yamaguchi, Tetsuya Matsumoto
Here, we report a case of fatal sepsis resulting from an intra-abdominal infection caused by a Bacteroides fragilis strain containing a CfiA4 metallo-β-lactamase and an upstream insertion sequence (IS) element. Meropenem was used as empiric therapy for septic shock as a result of the intra-abdominal infection, although two rounds of carbapenem treatment had been administered previously. B. fragilis was isolated from two anaerobic blood culture bottles 4 days after the onset of septic shock. Susceptibility testing revealed that the isolate was non-susceptible to all tested agents except metronidazole and tigecycline...
January 17, 2017: Anaerobe
https://www.readbyqxmd.com/read/28107379/experimental-and-in-silico-investigation-of-anti-microbial-activity-of-1-chloro-2-isocyanatoethane-derivatives-of-thiomorpholine-piperazine-and-morpholine
#2
Charles O Nwuche, Oguejiofo T Ujam, Akachukwu Ibezim, Ifeoma B Ujam
The Antibiogram properties of 1-chloro-2-isocyanatoethane derivatives of thiomorpholine (CTC), piperazine (CPC) and morpholine (CMC) were evaluated by the approved agar well diffusion, the minimum inhibitory concentration (MIC) and in silico techniques. A total of fourteen microbial cultures consisting of ten bacteria and four yeast strains were used in the biological study while affinity of the compounds for DNA gyrase, a validated antibacterial drug target, was investigated by docking method. Results indicate that both thiomorpholine and piperazine had zero activity against the Gram negative organisms tested...
2017: PloS One
https://www.readbyqxmd.com/read/28106649/neutrophil-gelatinase-associated-lipocalin-biomarker-and-urinary-tract-infections-a-diagnostic-case-control-study-nuti-study
#3
Jameca Renee Price, Larissa Guran, Jeong Youn Lim, Christina J Megli, Amanda L Clark, Sharon Renee Edwards, Mary Anna Denman, W Thomas Gregory
OBJECTIVES: Acute uncomplicated urinary tract infection (UTI) in women is often treated based on symptoms alone. Urinary tract infection symptoms are highly sensitive but lack specificity and result in overuse of antibiotics. We sought to determine if urine neutrophil gelatinase-associated lipocalin (uNGAL) levels in urine can accurately discriminate between UTI and healthy women. METHODS: We recruited adult women aged 18 to 85 years presenting in the ambulatory setting from November 2014 to January 2016...
January 18, 2017: Female Pelvic Medicine & Reconstructive Surgery
https://www.readbyqxmd.com/read/28105171/collagen-gel-droplet-embedded-culture-drug-sensitivity-testing-in-squamous-cell-carcinoma-cell-lines-derived-from-human-oral-cancers-optimal-contact-concentrations-of-cisplatin-and-fluorouracil
#4
Kaname Sakuma, Akira Tanaka, Izumi Mataga
The collagen gel droplet-embedded culture drug sensitivity test (CD-DST) is an anticancer drug sensitivity test that uses a method of three-dimensional culture of extremely small samples, and it is suited to primary cultures of human cancer cells. It is a useful method for oral squamous cell carcinoma (OSCC), in which the cancer tissues available for testing are limited. However, since the optimal contact concentrations of anticancer drugs have yet to be established in OSCC, CD-DST for detecting drug sensitivities of OSCC is currently performed by applying the optimal contact concentrations for stomach cancer...
December 2016: Oncology Letters
https://www.readbyqxmd.com/read/28104469/culturally-grounded-diabetes-prevention-program-for-obese-latino-youth-rationale-design-and-methods
#5
A N Williams, Y P Konopken, C S Keller, F G Castro, K Arcoleo, E Barraza, D L Patrick, M L Olson, G Q Shaibi
BACKGROUND: Type 2 diabetes (T2D) disproportionately impacts Latino youth yet few diabetes prevention programs address this important source of health disparities. OBJECTIVES: To address this knowledge gap, we describe the rationale, design, and methodology underpinning a culturally-grounded T2D prevention program for obese Latino youth. The study aims to: 1) to test the efficacy of the intervention for reducing T2D risk, 2) explore potential mediators and moderators of changes in health behaviors and health outcomes and, 3) examine the incremental cost-effectiveness for reducing T2D risk...
January 16, 2017: Contemporary Clinical Trials
https://www.readbyqxmd.com/read/28104098/urine-cultures-in-hospitalized-geriatric-patients-presenting-with-fever
#6
Zvi Shimoni, Ruslan Avdiaev, Paul Froom
INTRODUCTION: Urine cultures are commonly ordered in geriatric patients presenting with fever in the emergency department, but it is unclear if indiscriminate urine culture testing is warranted. MATERIALS AND METHODS: We selected 708 consecutive geriatric patients with a chief complaint of fever to determine the clinical usage (changes in antibiotic therapy according to culture results) and the costs of culturing the urine that included the need for catheterization to obtain a sample for culture and complications from catheterization...
January 2017: American Journal of the Medical Sciences
https://www.readbyqxmd.com/read/28102571/developing-a-cultural-competence-inventory-for-nurses-in-china
#7
D Cai, W Kunaviktikul, A Klunklin, A Sripusanapan, P K Avant
AIM: To develop and psychometrically test the Cultural Competence Inventory for Nurses in China. BACKGROUND: Cultural competence is expected worldwide from nurses due to the increasing cultural diversity of people in healthcare establishments. Yet, no cultural competence framework or instrument for nurses has been identified to guide nursing practice in China where the cultural diversity of the populations and the characteristics of the healthcare system are different from those of the West...
January 19, 2017: International Nursing Review
https://www.readbyqxmd.com/read/28100546/accuracy-of-line-probe-assays-for-the-diagnosis-of-pulmonary-and-multidrug-resistant-tuberculosis-a-systematic-review-and-meta-analysis
#8
Ruvandhi R Nathavitharana, Patrick G T Cudahy, Samuel G Schumacher, Karen R Steingart, Madhukar Pai, Claudia M Denkinger
Only 25% of multidrug-resistant tuberculosis (MDR-TB) cases are currently diagnosed. Line probe assays (LPAs) enable rapid drug-susceptibility testing for rifampicin (RIF) and isoniazid (INH) resistance and Mycobacterium tuberculosis detection. Genotype MTBDRplusV1 was WHO-endorsed in 2008 but newer LPAs have since been developed.This systematic review evaluated three LPAs: Hain Genotype MTBDRplusV1, MTBDRplusV2 and Nipro NTM+MDRTB. Study quality was assessed with QUADAS-2. Bivariate random-effects meta-analyses were performed for direct and indirect testing...
January 2017: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
https://www.readbyqxmd.com/read/28100438/high-dose-rifampicin-moxifloxacin-and-sq109-for-treating-tuberculosis-a-multi-arm-multi-stage-randomised-controlled-trial
#9
Martin J Boeree, Norbert Heinrich, Rob Aarnoutse, Andreas H Diacon, Rodney Dawson, Sunita Rehal, Gibson S Kibiki, Gavin Churchyard, Ian Sanne, Nyanda E Ntinginya, Lilian T Minja, Robert D Hunt, Salome Charalambous, Madeleine Hanekom, Hadija H Semvua, Stellah G Mpagama, Christina Manyama, Bariki Mtafya, Klaus Reither, Robert S Wallis, Amour Venter, Kim Narunsky, Anka Mekota, Sonja Henne, Angela Colbers, Georgette Plemper van Balen, Stephen H Gillespie, Patrick P J Phillips, Michael Hoelscher
BACKGROUND: Tuberculosis is the world's leading infectious disease killer. We aimed to identify shorter, safer drug regimens for the treatment of tuberculosis. METHODS: We did a randomised controlled, open-label trial with a multi-arm, multi-stage design. The trial was done in seven sites in South Africa and Tanzania, including hospitals, health centres, and clinical trial centres. Patients with newly diagnosed, rifampicin-sensitive, previously untreated pulmonary tuberculosis were randomly assigned in a 1:1:1:1:2 ratio to receive (all orally) either 35 mg/kg rifampicin per day with 15-20 mg/kg ethambutol, 20 mg/kg rifampicin per day with 400 mg moxifloxacin, 20 mg/kg rifampicin per day with 300 mg SQ109, 10 mg/kg rifampicin per day with 300 mg SQ109, or a daily standard control regimen (10 mg/kg rifampicin, 5 mg/kg isoniazid, 25 mg/kg pyrazinamide, and 15-20 mg/kg ethambutol)...
January 2017: Lancet Infectious Diseases
https://www.readbyqxmd.com/read/28100311/the-evaluation-of-three-different-bottles-in-bactec-9240-automated-blood-culture-system-and-direct-identification-of-candida-species-to-shorten-the-turnaround-time-of-blood-culture
#10
Egemen Gokbolat, Yasemin Oz, Selma Metintas
Candida spp. are the most common causes of fungemia. Rapid and accurate diagnostic methods are very important for appropriate management of candidemia. At present, blood culture is the essential diagnostic test despite it has a long detection time and low sensitivity rate. We aimed to investigate the ways to shorten the turnaround time from blood culture collection to final identification in candidemia. Sixty clinical bloodstream isolates of Candida were included and the Plus Aerobic/F, Peds Plus/F and Mycosis IC/F (MICF) bottles were used with BACTEC 9240 blood culture instrument...
January 16, 2017: Journal of Medical Microbiology
https://www.readbyqxmd.com/read/28095790/comparison-of-loop-mediated-isothermal-amplification-assay-and-smear-microscopy-with-culture-for-the-diagnostic-accuracy-of-tuberculosis
#11
Baye Gelaw, Yitayal Shiferaw, Marta Alemayehu, Abate Assefa Bashaw
BACKGROUND: Tuberculosis (TB) caused by Mycobacterium tuberculosis is one of the leading causes of death from infectious diseases worldwide. Sputum smear microscopy remains the most widely available pulmonary TB diagnostic tool particularly in resource limited settings. A highly sensitive diagnostic with minimal infrastructure, cost and training is required. Hence, we assessed the diagnostic performance of Loop-mediated isothermal amplification (LAMP) assay in detecting M.tuberculosis infection in sputum sample compared to LED fluorescent smear microscopy and culture...
January 17, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28093269/invasive-disease-versus-urinary-antigen-confirmed-pneumococcal-community-acquired-pneumonia
#12
Adrian Ceccato, Antoni Torres, Catia Cilloniz, Rosanel Amaro, Albert Gabarrus, Eva Polverino, Elena Prina, Carolina Garcia-Vidal, Eva Muñoz-Conejero, Cristina Mendez, Isabel Cifuentes, Jorge Puig de la Bella Casa, Rosario Menendez, Michael S Niederman
OBJECTIVES: The burden of pneumococcal disease is measured only through patients with invasive pneumococcal disease. The urinary antigen test (UAT) for pneumococcus has exhibited a high sensitivity and specificity. We aimed to compare the pneumococcal pneumonias diagnosed as invasive disease with pneumococcal pneumonias defined by UAT. METHODS: Prospective observational study on consecutive non-immunosuppressed patients with community-acquired pneumonia from January 2000 to December 2014...
January 13, 2017: Chest
https://www.readbyqxmd.com/read/28092466/clinical-performance-of-the-solana%C3%A2-point-of-care-trichomonas-assay-from-clinician-collected-vaginal-swabs-and-urine-specimens-from-symptomatic-and-asymptomatic-women
#13
C A Gaydos, J Schwebke, J Dombrowski, J Marrazzo, J Coleman, B Silver, M Barnes, L Crane, P Fine
BACKGROUND: Solana® (Quidel) is a new rapid (<40 min.) point-of-care (POC) test for qualitative detection of Trichomonas vaginalis (TV) DNA. The assay has two steps: 1) specimen preparation, and 2) amplification and detection using isothermal Helicase-Dependent Amplification (HDA). The objective was to demonstrate the performance of Solana for vaginal swabs and female urines based on comparison to wet mount and TV culture. Performance was also compared to the Aptima-TV assay. METHODS: Urine and four clinician-collected vaginal swabs were collected...
January 16, 2017: Expert Review of Molecular Diagnostics
https://www.readbyqxmd.com/read/28088954/-experiences-of-rescuing-infective-arterial-hemorrhage-and-pseudoaneurysm-in-dcd-kidney-transplantation
#14
D D Zhao, L Q Hong, Z Y Huang, N Na, X F Hua, B Miao, H Li, Q Q Sun
Objective: To summarize experiences of rescuing arterial hemorrhage and pseudoaneurysm caused by infection in donation after cardiac death (DCD) kidney transplantation. Methods: A total of 198 consecutive DCD kidney transplantations between 1 June 2013 and 30 July 2016 in the Third Affiliated Hospital of Sun Yat-sen University were retrospectively analyzed. The means of rescuing infective arterial hemorrhage and pseudoaneurysm after operation and their therapeutic effects were summarized. Results: A total of 5 infective arterial hemorrhage, 2 infective pseudoaneurysm with hemorrhage, and 1 infective pseudoaneurysm developed in 198 DCD kidney transplantation recipients with total morbidity of 4...
January 10, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28081227/diagnostic-accuracy-of-genexpert-mtb-rif-assay-in-comparison-to-conventional-drug-susceptibility-testing-method-for-the-diagnosis-of-multidrug-resistant-tuberculosis
#15
Pratikshya Pandey, Narayan Dutt Pant, Komal Raj Rijal, Bhawana Shrestha, Sirita Kattel, Megha Raj Banjara, Bhagwan Maharjan, Rajendra Kc
Xpert MTB/RIF assay is regarded as a great achievement of modern medicine for the rapid diagnosis of multidrug-resistant tuberculosis (MDR-TB). The main purpose of this study was to determine the performance of Xpert MTB/RIF assay compared to conventional drug susceptibility testing (DST) method for the diagnosis of MDR-TB. A comparative cross sectional study was carried out at German-Nepal Tuberculosis Project, Kathmandu, Nepal, from April 2014 to September 2014. A total of 88 culture positive clinical samples (83 pulmonary and 5 extra-pulmonary) received during the study period were analyzed for detection of multidrug-resistant tuberculosis by both GeneXpert MTB/RIF assay and conventional DST method...
2017: PloS One
https://www.readbyqxmd.com/read/28081211/development-and-validation-of-a-clinical-prediction-rule-for-bacteremia-among-maintenance-hemodialysis-patients-in-outpatient-settings
#16
Sho Sasaki, Takeshi Hasegawa, Hiroo Kawarazaki, Atsushi Nomura, Daisuke Uchida, Takahiro Imaizumi, Masahide Furusho, Hiroki Nishiwaki, Shingo Fukuma, Yugo Shibagaki, Shunichi Fukuhara
BACKGROUND: To our knowledge, no reliable clinical prediction rule (CPR) for identifying bacteremia in hemodialysis (HD) patients has been established. The aim of this study was to develop a CPR for bacteremia in maintenance HD patients visiting the outpatient department. METHODS: This multicenter cohort study involved consecutive maintenance HD patients who visited the outpatient clinic or emergency room of seven Japanese institutions between August 2011 and July 2013...
2017: PloS One
https://www.readbyqxmd.com/read/28081169/assessment-of-a-96-well-plate-assay-of-quantitative-drug-susceptibility-testing-for-mycobacterium-tuberculosis-complex-in-china
#17
Hui Xia, Yang Zheng, Bing Zhao, Susan van den Hof, Frank Cobelens, YanLin Zhao
OBJECTIVE: To evaluate the performance of the Sensitire MYCOTB MIC Plate (MYCOTB) which could measure the twelve anti-tuberculosis drugs susceptibility on one 96-wells plate. METHODS: A total of 140 MDR-TB strains and 60 non-MDR strains were sub-cultured and 193 strains were finally tested for drug resistance using MYCOTB and agar proportion method (APM) and another 7 strains failed of subculture. The drugs included ofloxacin (Ofx), moxifloxacin (Mfx), rifampin (RFP), amikacin (Am), rifabutin (Rfb), para-aminosalicylic acid (PAS), ethionamide (Eth), isoniazid (INH), kanamycin (Km), ethambutol (EMB), streptomycin (Sm), and cycloserine(Cs)...
2017: PloS One
https://www.readbyqxmd.com/read/28079747/how-reliable-is-microscopy-and-culture-for-the-diagnosis-of-gonorrhea-an-11-year-experience-from-india
#18
Aradhana Bhargava, Manju Bala, Vikram Singh, Naveen Chandra Joshi, Monika Kakran, Poonam Puri, Niti Khunger, Venkatesh Ramesh, Ashok Kumar Saxena
Positivity of microscopy and culture was greater (P < 0.0001) in men with urethral discharge syndrome (65.8%) than in women with vaginal/cervical discharge (0.5%), indicating that basic diagnostic tests may not be cost-effective for diagnosis of vaginal/cervical discharge syndrome. Microscopy when compared with culture showed sensitivity, specificity, positive predictive value and negative predictive value of 95.4%, 77.6%, 84.6%, and 95.3%, in men, whereas in women, it was 77.8%, 99.9%, 92.1%, and 99.9%, respectively...
February 2017: Sexually Transmitted Diseases
https://www.readbyqxmd.com/read/28079720/%C3%A2-s%C3%A3-lo-se-vive-una-vez-you-only-live-once-a-pilot-evaluation-of-individually-tailored-video-modules-aiming-to-increase-hiv-testing-among-foreign-born-latino-men
#19
Suzanne M Dolwick Grieb, Alejandra Flores-Miller, Kathleen R Page
BACKGROUND: Although Latinos living in the United States are disproportionately affected by HIV, the development, implementation, and evaluation of HIV prevention, testing, and linkage to care interventions lag behind efforts occurring in other communities. To address sociocultural barriers to testing, we developed a multilevel intervention. This study is a pilot evaluation of the individual-level component of the intervention-animated video modules that address specific barriers to HIV testing common among foreign-born Latino men...
February 1, 2017: Journal of Acquired Immune Deficiency Syndromes: JAIDS
https://www.readbyqxmd.com/read/28077644/ultrasensitive-hiv-1-p24-detects-single-infected-cells-and-differences-in-reservoir-induction-by-latency-reversal-agents
#20
Caroline Pereira Bittencourt Passaes, Timothée Bruel, Jérémie Decalf, Annie David, Mathieu Angin, Valerie Monceaux, Michaela Muller-Trutwin, Nicolas Noel, Katia Bourdic, Olivier Lambotte, Matthew L Albert, Darragh Duffy, Olivier Schwartz, Asier Sáez-Cirión
: The existence of HIV reservoirs in infected individuals under cART represents a major obstacle towards cure. Viral reservoirs are assessed by quantification of HIV nucleic acids, which does not discriminate between infectious and defective viruses, or by viral outgrowth assays, which requires large number of cells and long-term cultures. Here, we used an ultrasensitive p24 digital assay, which we report to be 1000 fold more sensitive than classical ELISA in the quantification of HIV-1 Gag p24 production in HIV-infected individuals samples...
January 11, 2017: Journal of Virology
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