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Bacteriology

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https://www.readbyqxmd.com/read/28109591/udder-firmness-as-a-possible-indicator-for-clinical-mastitis
#1
A Rees, C Fischer-Tenhagen, W Heuwieser
Swelling of the mammary gland is an important sign to detect clinical mastitis (CM) in dairy cows. The overall objective of this study was to evaluate if udder firmness can be used as a cow-side indicator for mastitis and to evaluate how CM affects firmness within 14 d after diagnosis. A dynamometer was used to objectively determine udder firmness before and after milking in 45 cows with CM and 95 healthy cows. Udder firmness of both hind quarters was measured daily on 3 locations (upper, middle, lower measuring point) from the day of mastitis diagnosis until d 7 and again on d 14...
January 18, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28107473/butimba-intensifying-the-hunt-for-child-tb-in-swaziland-through-household-contact-tracing
#2
Anna Maria Mandalakas, Katherine Ngo, Pilar Alonso Ustero, Rachel Golin, Florence Anabwani, Bulisile Mzileni, Welile Sikhondze, Robert Stevens
BACKGROUND: Limited data exists to inform contact tracing guidelines in children and HIV-affected populations. We evaluated the yield and additionality of household contact and source case investigations in Swaziland, a TB/HIV high-burden setting, while prioritizing identification of childhood TB. METHODS: In partnership with 7 local TB clinics, we implemented standardized contact tracing of index cases (IC) receiving TB treatment. Prioritizing child contacts and HIV-affected households, screening officers screened contacts for TB symptoms and to identify risk factors associated with TB...
2017: PloS One
https://www.readbyqxmd.com/read/28104282/-incidence-of-bacteria-from-cultures-of-bile-and-gallbladder-wall-of-laparoscopic-cholecystectomy-patients-in-the-university-hospital-dr-jos%C3%A3-eleuterio-gonz%C3%A3-lez
#3
Rubén Cueto-Ramos, Marco Hernández-Guedea, Edelmiro Pérez-Rodríguez, Francisco Reyna-Sepúlveda, Gerardo Muñoz-Maldonado
BACKGROUND: Through experience it has been accepted that bile in normal conditions remains sterile. Bactibilia is a common finding in individuals at high risk or with complicated cholecystolithiasis, however few data prevails about the prevalence of bactibilia in patients operated on for uncomplicated laparoscopic cholecystectomy. There is s common usage of preoperative and postoperative antibiotics in the different patients without the existence of any actual bacteriologic and epidemiologic evidence...
January 16, 2017: Cirugia y Cirujanos
https://www.readbyqxmd.com/read/28103866/efficacy-of-a-polyvalent-mastitis-vaccine-against-staphylococcus-aureus-on-a-dairy-mediterranean-buffalo-farm-results-of-two-clinical-field-trials
#4
Jacopo Guccione, Antonella Pesce, Massimo Pascale, Caterina Salzano, Gianni Tedeschi, Luigi D'Andrea, Angela De Rosa, Paolo Ciaramella
BACKGROUND: In the last years the knowledges on Mediterranean Buffalo (MB) mastitis is remarkably improving, nevertheless the attention has been never focused on vaccination as preventive strategy for the control of mastitis in these ruminates. The aim of the current study was to assess clinical efficacy over time of two different preventive vaccination protocols against S. aureus mastitis, in primiparous MB.Vaccinated (VG) and not-vaccinated (N-VG) groups, of 30 MB each one, were selected from two different herds (herd A: VG1 and N-VG1; herd B: VG2 and N-VG2) of the same farm...
January 19, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/28100261/serotypes-of-streptococcus-suis-isolated-from-healthy-pigs-in-phayao-province-thailand
#5
P Thongkamkoon, T Kiatyingangsulee, M Gottschalk
BACKGROUND: Streptococcus suis (S. suis) is an important swine and human pathogen. There are 33 serotypes that have been described. Zoonotic cases are very common the Northern part of Thailand, especially in Phayao Province. However, the prevalence of S. suis and, more particularly the different serotypes, in pigs in this region is poorly known and needed to be addressed. THE CONTEXT AND PURPOSE OF THE STUDY: Distribution of S. suis serotypes varies depending on the geographical area...
January 19, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28098301/optical-dna-mapping-in-nanofluidic-devices-principles-and-applications
#6
Vilhelm Müller, Fredrik Westerlund
Optical DNA mapping has over the last decade emerged as a very powerful tool for obtaining long range sequence information from single DNA molecules. In optical DNA mapping, intact large single DNA molecules are labeled, stretched out, and imaged using a fluorescence microscope. This means that sequence information ranging over hundreds of kilobasepairs (kbp) can be obtained in one single image. Nanochannels offer homogeneous and efficient stretching of DNA that is crucial to maximize the information that can be obtained from optical DNA maps...
January 18, 2017: Lab on a Chip
https://www.readbyqxmd.com/read/28097633/meropenem-dosing-based-on-a-population-pharmacokinetic-pharmacodynamic-model-in-elderly-patients-with-infection-of-the-lower-respiratory-tract
#7
Qing-Tao Zhou, Bei He, Ning Shen, Ying Liang, Li-Na Sun
BACKGROUND: Meropenem is used for the treatment of severe lower respiratory tract infections (LRTIs) caused by multidrug-resistant Gram-negative bacilli. OBJECTIVE: We evaluated the clinical benefits of a strategy of meropenem dosing based on a population pharmacokinetics/pharmacodynamics (PK/PD) model in elderly patients with an LRTI. METHODS: In this prospective single-center open-label randomized controlled trial, 79 elderly patients with an LRTI caused by Gram-negative bacilli were randomized to a study group (SG) or a control group (CG)...
January 17, 2017: Drugs & Aging
https://www.readbyqxmd.com/read/28095889/evolution-of-gut-microbiota-composition-from-birth-to-24-weeks-in-the-infantmet-cohort
#8
Cian J Hill, Denise B Lynch, Kiera Murphy, Marynka Ulaszewska, Ian B Jeffery, Carol Anne O'Shea, Claire Watkins, Eugene Dempsey, Fulvio Mattivi, Kieran Touhy, R Paul Ross, C Anthony Ryan, Paul W O' Toole, Catherine Stanton
BACKGROUND: The gut is the most extensively studied niche of the human microbiome. The aim of this study was to characterise the initial gut microbiota development of a cohort of breastfed infants (n = 192) from 1 to 24 weeks of age. METHODS: V4-V5 region 16S rRNA amplicon Illumina sequencing and, in parallel, bacteriological culture. The metabolomic profile of infant urine at 4 weeks of age was also examined by LC-MS. RESULTS: Full-term (FT), spontaneous vaginally delivered (SVD) infants' microbiota remained stable at both phylum and genus levels during the 24-week period examined...
January 17, 2017: Microbiome
https://www.readbyqxmd.com/read/28093340/bacteriological-profile-of-ocular-surface-flora-in-meibomian-gland-dysfunction
#9
Shao Dan Zhang, Jing Na He, Tong Tong Niu, Chiu Yeung Chan, Chun Yang Ren, Shan Shan Liu, Yang Qu, Kam Lung Chong, Hai Lin Wang, Jun Tao, Chi Pui Pang
PURPOSE: To compare the bacteriological profile of meibomian gland secretion and conjunctival cul-de-sac in subjects with and without meibomian gland dysfunction (MGD). METHODS: This hospital-based study enrolled 201 eyes from 201 MGD patients and 84 eyes from 84 age- and gender-matched controls. Samples from the conjunctivae and meibomian gland secretion were obtained. Both aerobic and anaerobic cultures were performed. Differences in the culture-positivity and bacterial strains between two groups were compared...
January 13, 2017: Ocular Surface
https://www.readbyqxmd.com/read/28089289/evaluation-of-five-serologic-assays-for-bovine-tuberculosis-surveillance-in-domestic-free-range-pigs-from-southern-spain
#10
Fernando Cardoso-Toset, Inmaculada Luque, Librado Carrasco, Francisco Jurado-Martos, María Ángeles Risalde, Ángel Venteo, José A Infantes-Lorenzo, Javier Bezos, Paloma Rueda, Istar Tapia, Christian Gortázar, Lucas Domínguez, Mercedes Domínguez, Jaime Gomez-Laguna
In countries where bovine tuberculosis (bTB) is still prevalent the contact among different animal species in extensive systems contributes to the circulation of Mycobacterium bovis (M. bovis) and other members of the Mycobacterium tuberculosis complex (MTC). Thus, free-range pigs can develop subclinical infections and may contribute to disease spread to bovine and wildlife. Serodiagnosis has been proposed as a screening tool for detecting infected pig herds; however, the value of this method to obtain an accurate diagnosis in this species is still not clear...
December 29, 2016: Preventive Veterinary Medicine
https://www.readbyqxmd.com/read/28079759/the-quantiferon-tb-gold-in-tube-assay-in-neuro-ophthalmology
#11
Leanne M Little, Mohammed Rigi, Ayman Suleiman, Stacy V Smith, Edward A Graviss, Rod Foroozan, Andrew G Lee
BACKGROUND: Although QuantiFERON-TB Gold In-Tube (QFT-GIT) testing is regularly used to detect infection with Mycobacterium tuberculosis, its utility in a patient population with a low risk for tuberculosis (TB) has been questioned. The following is a cohort study analyzing the efficacy of QFT-GIT testing as a method for detection of active TB disease in low-risk individuals in a neuro-ophthalmologic setting. METHODS: Ninety-nine patients from 2 neuro-ophthalmology centers were identified as having undergone QFT-GIT testing between January 2012 and February 2016...
January 11, 2017: Journal of Neuro-ophthalmology: the Official Journal of the North American Neuro-Ophthalmology Society
https://www.readbyqxmd.com/read/28068347/microbiologically-confirmed-tuberculosis-factors-associated-with-pre-treatment-loss-to-follow-up-and-time-to-treatment-initiation
#12
Judith Mwansa-Kambafwile, Boitumelo Maitshotlo, Andrew Black
BACKGROUND: The impact of new diagnostics on pre-treatment loss to follow up (Pre-treatment LTFU) has not been widely investigated. The reported rate of pre-treatment LTFU is however lower in studies where Xpert MTB/Rif (Xpert) has been used onsite as opposed to centrally. The use of the Xpert at point of care (POC) could have a role in reducing the pre-treatment LTFU rate among TB patients. We aimed to determine the pre-treatment LTFU rate and the time to treatment initiation as well as to describe associated factors in patients diagnosed with TB using POC Xpert or smear microscopy...
2017: PloS One
https://www.readbyqxmd.com/read/28068297/fatty-acid-derivative-chemokine-and-cytokine-profiles-in-exhaled-breath-condensates-can-differentiate-adult-and-children-paucibacillary-tuberculosis-patients
#13
Sergio Fabián Mosquera-Restrepo, Ana Cecilia Caro, Luis F García, Carlos Alberto Peláez-Jaramillo, Mauricio Rojas
The anti-mycobacterial immune response in adults and children with tuberculosis (TB), as well as the response in bacteriologically positive and negative patients, is different. However, knowledge of the immunological events occurring in the lungs in these clinical situations remains scarce. Exhaled breath condensate (EBC) samples may be useful for studying the inflammatory environment of the lower airways in TB patients. The fatty acid, cytokine, and chemokine profiles in EBC from healthy adults; smear-positive and smear-negative adult patients; and healthy, asthmatic, and TB children were determined using gas chromatography and LUMINEX, respectively...
January 9, 2017: Journal of Breath Research
https://www.readbyqxmd.com/read/28068267/clinicopathologic-correlation-mixed-density-lesion-in-the-posterior-mandible
#14
Aram Sun, Pallavi Parashar, James J Closmann
A middle-aged man presented for evaluation of a mixed-density lesion of the left posterior mandible. This clinicopathologic correlation presents the radiographic, clinical, and histopathologic findings; differential diagnosis; and treatment plan for this case. The lesion was deemed to be of bacteriologic origin, likely a polymicrobial infection containing actinomycetes. Clinical care and follow-up for the patient are discussed.
January 2017: General Dentistry
https://www.readbyqxmd.com/read/28065865/heterocyte-forming-cyanobacteria-from-brazilian-saline-alkaline-lakes
#15
Diego Bonaldo Genuário, Ana Paula Dini Andreote, Marcelo Gomes Marçal Vieira Vaz, Marli Fátima Fiore
Studies investigating the diversity of cyanobacteria from tropical environments are scarce, especially those devoted to the isolation and molecular characterization of the isolated strains. Among the Brazilian biomes, Pantanal has mainly been examined through microscopic observation of environmental samples, resulting in lists of morphotypes without any genetic information. Recently, two studies were conducted evaluating the morphologic and genetic diversity of cultured non-heterocytous cyanobacteria in this biome, which resulted in the separation and description of two novel genera...
January 5, 2017: Molecular Phylogenetics and Evolution
https://www.readbyqxmd.com/read/28065351/editorial-comment-preoperative-urine-culture-results-correlate-poorly-with-bacteriology-of-urologic-prosthetic-device-infections
#16
Nelson Bennett
No abstract text is available yet for this article.
January 2017: Journal of Sexual Medicine
https://www.readbyqxmd.com/read/28065350/preoperative-urine-culture-results-correlate-poorly-with-bacteriology-of-urologic-prosthetic-device-infections
#17
Nicholas L Kavoussi, Jordan A Siegel, Boyd R Viers, Travis J Pagliara, Matthias D Hofer, Billy H Cordon, Nabeel Shakir, Jeremy M Scott, Allen F Morey
INTRODUCTION: Although preoperative negative urine culture results and treatment of urinary tract infections are generally advised before artificial urinary sphincter (AUS) and penile prosthesis (PP) surgery to prevent device infection, limited evidence exists to support this practice. AIM: To evaluate the relation between preoperative urine culture results and the bacteriology of prosthetic device infections. METHODS: Men undergoing AUS and/or PP placement at a tertiary referral center from 2007 through 2015 were analyzed...
January 2017: Journal of Sexual Medicine
https://www.readbyqxmd.com/read/28065332/clostridium-difficile-contamination-of-health-care-workers-hands-and-its-potential-contribution-to-the-spread-of-infection-review-of-the-literature
#18
REVIEW
Ingrid Jullian-Desayes, Caroline Landelle, Marie-Reine Mallaret, Christian Brun-Buisson, Frédéric Barbut
BACKGROUND: Clostridium difficile infection (CDI) can be transmitted from patient to patient by the hands of health care workers (HCWs); however, the relative importance of this route in the spread of C difficile in the hospital is currently unknown. Our aim was to review studies examining HCWs' hand carriage and its potential role in CDI transmission. METHODS: First, English-speaking references addressing HCWs' hand sampling obtained from the PubMed database were reviewed...
January 1, 2017: American Journal of Infection Control
https://www.readbyqxmd.com/read/28061877/campylobacter-coli-infection-in-pet-birds-in-southern-italy
#19
Ludovico Dipineto, Luca Borrelli, Antonino Pace, Violante Romano, Stefano D'Orazio, Lorena Varriale, Tamara Pasqualina Russo, Alessandro Fioretti
Avian species are considered as the main reservoir of Campylobacter spp. However, few data are available on the presence of this microorganism in pet birds. This study was therefore performed to determine the prevalence of Campylobacter spp. in pet birds bred in southern Italy. Faecal samples were collected from 88 cages housing different species of pet birds and examined by bacteriological culture and polymerase chain reaction. A total of 13.6% of the cage samples were positive for Campylobacter coli. Other Campylobacter spp...
January 6, 2017: Acta Veterinaria Scandinavica
https://www.readbyqxmd.com/read/28061502/brain-abscesses-associated-with-asymptomatic-pulmonary-arteriovenous-fistulas
#20
Taek-Kyun Nam, Yong-Sook Park, Jeong-Taik Kwon
Brain abscess commonly occurs secondary to an adjacent infection (mostly in the middle ear or paranasal sinuses) or due to hematogenous spread from a distant infection or trauma. Pulmonary arteriovenous fistulas (AVFs) are abnormal direct communications between the pulmonary artery and vein. We present two cases of brain abscess associated with asymptomatic pulmonary AVF. A 65-year-old woman was admitted with a headache and cognitive impairment that aggravated 10 days prior. An magnetic resonance (MR) imaging revealed a brain abscess with severe edema in the right frontal lobe...
January 1, 2017: Journal of Korean Neurosurgical Society
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