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https://www.readbyqxmd.com/read/28545723/emergence-of-a-urogenital-pathotype-of-neisseria-meningitidis
#1
Charlene M Kahler
Neisseria meningitidis is the causative agent of transmissible sepsis and meningitis in humans. A urogenital pathotype of N. meningitidis as the causative agent of transmissible urethritis in the USA has been recently characterised. This pathotype belongs to clonal complex 11 and has lost capsule production but gained anaerobic growth.
May 22, 2017: Trends in Microbiology
https://www.readbyqxmd.com/read/28536675/an-overview-of-two-component-signal-transduction-systems-implicated-in-extra-intestinal-pathogenic-e-coli-infections
#2
REVIEW
Erin J Breland, Allison R Eberly, Maria Hadjifrangiskou
Extra-intestinal pathogenic E. coli (ExPEC) infections are common in mammals and birds. The predominant ExPEC types are avian pathogenic E. coli (APEC), neonatal meningitis causing E. coli/meningitis associated E. coli (NMEC/MAEC), and uropathogenic E. coli (UPEC). Many reviews have described current knowledge on ExPEC infection strategies and virulence factors, especially for UPEC. However, surprisingly little has been reported on the regulatory modules that have been identified as critical in ExPEC pathogenesis...
2017: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/28533989/iatrogenic-spinal-subdural-extra-arachnoid-hygroma-following-uncomplicated-lumbar-decompression
#3
Benjamin D Elder, Wataru Ishida, Rory C Goodwin, Ali Bydon
Intradural spinal arachnoid cysts (ISACs) have been reported in the current literature as either an idiopathic disease or exceedingly rare sequelae after lumbar puncture, spinal trauma, or meningitis. Other studies have more appropriately termed the iatrogenic pathology as a spinal subdural extra-arachnoid hygroma (SSEH), as there is not often a clear cyst wall as in a true arachnoid cyst. However, to the best of our knowledge, none of the previous studies described an SSEH following uncomplicated posterior lumbar surgery, as they have previously involved clear durotomies during the initial operation...
April 17, 2017: Curēus
https://www.readbyqxmd.com/read/28526220/lumbar-puncture-for-all-febrile-infants-29-56-days-old-a-retrospective-cohort-reassessment-study
#4
Richard Scarfone, Ashlee Murray, Payal Gala, Fran Balamuth
OBJECTIVES: To determine the incidence of bacterial meningitis (BM) among all febrile infants 29-56 days old undergoing a lumbar puncture (LP) in the emergency department of a tertiary care children's hospital and the number of low-risk febrile infants with BM to reassess the need for routine LP in these infants. STUDY DESIGN: Retrospective cohort study using a quality improvement registry from July 2007-April 2014. Infants included were 29-56 days old with fever and who had an LP in the emergency department...
May 16, 2017: Journal of Pediatrics
https://www.readbyqxmd.com/read/28524790/cognard-type-v-intracranial-dural-arteriovenous-fistula-presenting-in-a-pediatric-patient-with-rapid-progressive-myelopathy
#5
Walter J Jermakowicz, Alexander G Weil, Artyom Vlasenko, Sanjiv Bhatia, Toba N Niazi
Cognard Type V dural arteriovenous fistulas (dAVFs) are a unique type of cranial vascular malformation characterized by congestion of the perimedullary venous system that may lead to devastating spinal cord pathology if left untreated. The authors present the first known case of a pediatric patient diagnosed with a Type V dAVF. A 14-year-old girl presented with a 3-week history of slowly progressive unilateral leg weakness that quickly progressed to bilateral leg paralysis, sphincter dysfunction, and complete sensory loss the day of her presentation...
May 19, 2017: Journal of Neurosurgery. Pediatrics
https://www.readbyqxmd.com/read/28524217/-importance-of-enteroviruses-in-neuropaediatrics-from-polioviruses-to-other-enteroviruses
#6
M Cabrerizo, Grupo Para El Estudio de Las Infecciones Por Enterovirus Y Parechovirus Grupo Para El Estudio de Las Infecciones Por Enterovirus Y Parechovirus
Enteroviruses are among the most common human viruses around the world. More than 100 different serotypes that can cause a range of clinical pathologies have been identified, although the most frequent are those that affect the central nervous system, such as aseptic meningitis, encephalitis or paralysis, which in some cases can be very severe or even fatal. In recent years, enterovirus outbreaks associated to new diseases have been reported all over the world, and as a result some serotypes have been considered 'emerging' pathogens...
May 17, 2017: Revista de Neurologia
https://www.readbyqxmd.com/read/28521343/tarlov-cyst-causing-sacral-insufficiency-fracture
#7
Ross C Puffer, Marcus J Gates, William Copeland, William E Krauss, Jeremy Fogelson
BACKGROUND AND IMPORTANCE: Tarlov cysts, also known as perineural cysts, have been described as meningeal dilations of the spinal nerve root sheath between the peri- and endoneurium at the dorsal root ganglion. Most often they are found in the sacrum involving the nerve roots. Normally asymptomatic, they have been reported to present with radiculopathy, paresthesias, and even urinary or bowel dysfunction. Sacral insufficiency has not been a well-documented presentation. CLINICAL PRESENTATION: The patient is a 38-year-old female who started to develop left low back pain and buttock pain that rapidly progressed into severe pain with some radiation down the posterior aspect of her left leg...
June 1, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28518035/angiostrongylus-cantonensis-meningitis-and-myelitis-texas-usa
#8
Roukaya Al Hammoud, Stacy L Nayes, James R Murphy, Gloria P Heresi, Ian J Butler, Norma Pérez
Infection with Angiostrongylus cantonensis roundworms is endemic in Southeast Asia and the Pacific Basin. A. cantonensis meningitis and myelitis occurred in summer 2013 in a child with no history of travel outside of Texas, USA. Angiostrongyliasis is an emerging neurotropic helminthic disease in Texas and warrants increased awareness among healthcare providers.
June 2017: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/28504487/haemophilus-influenzae-type-b-meningitis-is-there-a-re-emergence-24-years-of-experience-in-a-children-s-hospital
#9
Angela Gentile, Ana C Martínez, María Del V Juarez, María F Lución, Candela Burgo, María P Della Latta, Solana Rapapor, Viviana Romanin, Marisa Turco
INTRODUCTION: Haemophilus influenzae type B (Hib) used to be the main cause of bacterial meningitis in children younger than 5 years old. Following the introduction of the Hib vaccine in the immunization schedule (1998), its incidence reduced significantly but it has increased over the last years. The objectives of this study included describing the characteristics and analyzing the epidemic curve of Haemophilus influenzae type B (Hib) meningitis by comparing the pre- and postimmunization periods...
June 1, 2017: Archivos Argentinos de Pediatría
https://www.readbyqxmd.com/read/28493351/human-zika-and-west-nile-virus-neurological-infections-what-is-the-difference
#10
REVIEW
Clayton A Wiley, Leila Chimelli
The recent epidemic of West Nile Virus (WNV) infection in the United States was associated with severe neurological disease in immunocompromised hosts, while the emergence of Zika virus infection in the Americas has been notable for an association with increased microcephaly in the fetuses of infected mothers. Rare autopsies of WNV infected humans have shown multiple organ involvement with a clear neurotropism. We have recently had the opportunity to examine the distribution of Zika virus in autopsies of newborns from infected pregnancies...
May 11, 2017: Neuropathology: Official Journal of the Japanese Society of Neuropathology
https://www.readbyqxmd.com/read/28493001/study-on-the-tolerance-and-adaptation-of-rats-to-angiostrongylus-cantonensis-infection
#11
Liu Ji, Xu Yiyue, He Xujin, Zheng Minghui, Zhang Mengying, Hu Yue, Wu Yanqi, Song Langui, Zeng Xin, Lin Datao, Wan Shuo, Zheng Huanqin, Wu Zhongdao, Lv Zhiyue
Angiostrongylus cantonensis (A. cantonensis) is the most common infectious agent causing eosinophilic meningitis. As an important food-borne parasitic disease, angiostrongyliasis cantonensis is an emerging infectious disease which brings severe harm to central nerve system of human. Rat, one of the few permissive hosts of A. cantonensis known to date, plays an indispensable role in the worm's life cycle. However, the tolerance and adaptation of rat to A. cantonensis infection is rarely understood. In this study, we infected rats with different numbers the third stage larvae (L3) of A...
May 11, 2017: Parasitology Research
https://www.readbyqxmd.com/read/28492472/molecular-surveillance-of-cronobacter-spp-isolated-from-a-wide-variety-of-foods-from-44-different-countries-by-sequence-typing-of-16s-rrna-rpob-and-o-antigen-genes
#12
Nancy Miranda, Pratik Banerjee, Steven Simpson, Khalil Kerdahi, Irshad M Sulaiman
Cronobacter spp. are emerging infectious bacteria that can cause acute meningitis and necrotizing enterocolitis in neonatal and immunocompromised individuals. Although this opportunistic human-pathogenic microorganism has been isolated from a wide variety of food and environmental samples, it has been primarily linked to foodborne outbreaks associated with powdered infant formula. The U.S. Food and Drug Administration use the presence of these microbes as one of the criteria to assess food adulteration and to implement regulatory actions...
May 11, 2017: Foods (Basel, Switzerland)
https://www.readbyqxmd.com/read/28486477/epidemiology-of-brain-abscess-in-taiwan-a-14-year-population-based-cohort-study
#13
Cheung-Ter Ong, Ching-Fang Tsai, Yi-Sin Wong, Solomon Chih-Cheng Chen
Brain abscess (BA) is a severe neurological emergency, which remains a challenge for physicians despite medical advancements. The purpose of this study is to describe the epidemiology of BA in Taiwan and to investigate potential factors affecting the survival of patients with BA. By using the Taiwan National Health Insurance Research Database, we identified hospitalized patients with a discharge diagnosis of pyogenic BA (324.X) between 2000 and 2013. The incidence and in-hospital mortality of BA were calculated based on both age and sex...
2017: PloS One
https://www.readbyqxmd.com/read/28480269/globicatella-sanguinis-osteomyelitis-and-bacteremia-review-of-an-emerging-human-pathogen-with-an-expanding-spectrum-of-disease
#14
Andy O Miller, Seanne P Buckwalter, Michael W Henry, Fann Wu, Katherine F Maloney, Bisrat K Abraham, Barry J Hartman, Barry D Brause, Susan Whittier, Thomas J Walsh, Audrey N Schuetz
BACKGROUND: Globicatella sanguinis is an uncommon pathogen that may be misdiagnosed as viridans group streptococci. We review the literature of Globicatella and report 2 clinical cases in which catalase-negative Gram-positive cocci resembling viridans group streptococci with elevated minimum inhibitory concentrations (MICs) to ceftriaxone were inconsistently identified phenotypically, with further molecular characterization and ultimate identification of G sanguinis. METHODS: Two clinical strains (from 2 obese women; 1 with a prosthetic hip infection and the other with bacteremia) were analyzed with standard identification methods, followed by matrix-assisted laser desorption ionization time-of-flight mass spectrometry, 16S recombinant ribonucleic acid (rRNA), and sodA polymerase chain reaction (PCR)...
2017: Open Forum Infectious Diseases
https://www.readbyqxmd.com/read/28478773/clinical-presentation-of-invasive-disease-caused-by-neisseria-meningitidis-serogroup-y-in-sweden-1995-to-2012
#15
O Säll, B Stenmark, M Glimåker, S Jacobsson, P Mölling, P Olcén, H Fredlund
Over the period 1995-2012, the incidence of invasive meningococcal disease (IMD) caused by Neisseria meningitidis serogroup Y (NmY) increased significantly in Sweden. This is mainly due to the emergence of a predominant cluster named strain type YI subtype 1, belonging to the ST-23 clonal complex (cc). The aim of this study was to examine the clinical picture of patients with invasive disease caused by NmY and to analyse whether the predominant cluster exhibits certain clinical characteristics that might explain the increased incidence...
May 8, 2017: Epidemiology and Infection
https://www.readbyqxmd.com/read/28474627/scrub-typhus-in-uttarakhand-adjoining-uttar-pradesh-seasonality-clinical-presentations-predictors-of-mortality
#16
Anurag Bhargava, Reshma Kaushik, Rajeev Mohan Kaushik, Anita Sharma, Sohaib Ahmad, Minakshi Dhar, Garima Mittal, Sushant Khanduri, Priyannk Pant, Rajesh Kakkar
BACKGROUND & OBJECTIVES: Scrub typhus is a re-emerging mite-borne rickettsiosis, which continues to be underdiagnosed, with lethal consequences. The present study was conducted to determine the seasonality, clinical presentation and predictors of mortality in patients with scrub typhus at a tertiary care teaching hospital in northern India. METHODS: Scrub typhus was suspected in patients attending the hospital as per the standard case definition and serological evidence was obtained by performing an IgM ELISA...
December 2016: Indian Journal of Medical Research
https://www.readbyqxmd.com/read/28473359/pasteurella-multocida-meningoencephalitis-in-an-immunocompetent-adult-with-multiple-cat-scratches
#17
David Alistair Clarke, Angela Mcbride, Michael Kelsey, Ben Killingley
We present the case of a 49-year-old woman admitted to our Acute Medical Unit with a 2-day history of fever, vomiting and confusion. The patient was alcohol dependent and had sustained several scratches from her pet cat, which her pet dog had licked. She deteriorated in the Emergency Department-developing high fever, worsening confusion and meningism. Blood cultures were taken and broad spectrum antibiotics commenced prior to CT scanning and diagnostic lumbar puncture. Blood cultures and CSF 16S ribosomal PCR confirmed a diagnosis of Pasteurella multocida bacteraemia and meningoencephalitis...
May 3, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28472006/concomitant-bacterial-meningitis-in-infants-with-urinary-tract-infection
#18
Joanna Thomson, Andrea T Cruz, Lise E Nigrovic, Stephen B Freedman, Aris C Garro, Paul T Ishimine, Dina M Kulik, Neil G Uspal, Kendra L Grether-Jones, Aaron S Miller, David Schnadower, Samir S Shah
To determine age-stratified prevalence of concomitant bacterial meningitis in infants ≤ 60 days with a urinary tract infection (UTI), we performed a 23-center retrospective study of 1,737 infants with UTI. Concomitant bacterial meningitis was rare, but more common in infants 0-28 days (0.9%, 95% CI: 0.4-1.9%) compared with infants 29-60 days (0.2%, 95% CI: 0-0.8%).
May 2, 2017: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/28471865/correction-of-cerebrospinal-fluid-protein-in-infants-with-traumatic-lumbar-punctures
#19
Todd W Lyons, Andrea T Cruz, Stephen B Freedman, Joseph L Arms, Paul L Aronson, Alesia H Fleming, Dina M Kulik, Prashant Mahajan, Rakesh D Mistry, Christopher M Pruitt, Amy D Thompson, Lise Nigrovic
In our multi-center cohort of infants ≤ 60 days of age, we identified 2,646 infants with a traumatic lumbar puncture of which 31 (1.2%) had bacterial meningitis. For every 1,000 cerebrospinal fluid (CSF) red blood cells per mm, cerebrospinal (CSF) protein increased 1.1 mg/dL [95% confidence interval (CI) 1.0-1.2 mg/dL].
May 3, 2017: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/28442909/tat-functionalized-liposomes-for-the-treatment-of-meningitis-an-in-vitro-study
#20
Caterina Bartomeu Garcia, Di Shi, Thomas J Webster
Bacterial meningitis has become a global concern, because of the emergence of antibiotic-resistant bacteria. It has been demonstrated that liposomes can enter bacteria, thus providing a possible treatment for numerous infections, including meningitis. Fusogenic liposomes are pH-sensitive with a high capacity to fuse with the bacteria membrane and promote intracellular drug release. Moreover, this ability can be improved by using cell-penetrating peptides (such as Tat47-57, which is a peptide derived from the Tat protein of HIV)...
2017: International Journal of Nanomedicine
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