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https://www.readbyqxmd.com/read/29351935/an-adult-case-with-shigellosis-associated-encephalopathy
#1
Heleen Joséphine Schuster, Michelle Gompelman, Wim Ang, Albertus Jozef Kooter
A 45-year-old man was presented at the emergency department with altered neurological status and a 1-day history of diarrhoea and fever. The patient's sexual history revealed multiple male partners. As bacterial meningitis or viral encephalitis was suspected, treatment was started accordingly. Cerebrospinal fluid investigations only showed a slight increase of leucocytes, and microbiological studies remained negative. Stool culture revealed Shigella flexneri, after which Shigella-associated encephalopathy was suspected...
January 18, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/29346380/rapidly-progressive-dementia-an-eight-year-2008-2016-retrospective-study
#2
Patil Anuja, Vishnu Venugopalan, Naheed Darakhshan, Pandit Awadh, Vinny Wilson, Goyal Manoj, Modi Manish, Lal Vivek
BACKGROUND AND PURPOSE: Rapidly progressive dementia (RPD) is an emergency in cognitive neurology, defined as cognitive impairment affecting the daily living activities developed over less than 1 year. This study investigated the profile of patients with rapidly progressive dementia at first presentation. METHODS: Retrospective case analysis was done in 187 patients with rapidly progressive dementia who presented to the Postgraduate Institute of Medical Education and Research, Chandigarh, India from January 2008 to August 2016...
2018: PloS One
https://www.readbyqxmd.com/read/29343585/rhinovirus-in-febrile-infants-and-risk-of-bacterial-infection
#3
Anne J Blaschke, E Kent Korgenski, Jacob Wilkes, Angela P Presson, Emily A Thorell, Andrew T Pavia, Elizabeth D Knackstedt, Carolyn Reynolds, Jeff E Schunk, Judy A Daly, Carrie L Byington
BACKGROUND: Febrile infants with viral respiratory infections have a reduced risk of bacterial infection compared with virus-negative infants. The risk of concomitant bacterial infection in febrile infants positive for human rhinovirus (HRV) by polymerase chain reaction (PCR) is unknown. METHODS: Infants 1-90 days old managed using the care process model for well-appearing febrile infants and with respiratory viral testing by PCR (RVPCR) in the emergency department or inpatient setting of 22 hospitals in the Intermountain Healthcare system from 2007-2016 were identified...
January 17, 2018: Pediatrics
https://www.readbyqxmd.com/read/29343583/structural-study-of-the-c-terminal-domain-of-non-structural-protein-1-from-japanese-encephalitis-virus
#4
Thanalai Poonsiri, Gareth S A Wright, Michael S Diamond, Lance Turtle, Tom Solomon, Svetlana V Antonyuk
Japanese encephalitis virus (JEV) is a mosquito-transmitted Flavivirus that is closely related to other emerging viral pathogens including dengue, West Nile (WNV) and Zika viruses. JEV infection can result in meningitis and encephalitis, which in severe cases cause permanent brain damage and death. JEV occurs predominantly in rural areas throughout Southeast Asia, the Pacific islands and the Far East, causing around 68,000 cases worldwide each year. In this study, we present a 2.1 Å resolution crystal structure of the C-terminal β-ladder domain of JEV non-structural protein 1 (NS1-C)...
January 17, 2018: Journal of Virology
https://www.readbyqxmd.com/read/29341430/tuberculosis-vaccines-opportunities-and-challenges
#5
REVIEW
Bingdong Zhu, Hazel M Dockrell, Tom H M Ottenhoff, Thomas G Evans, Ying Zhang
Tuberculosis (TB) is a serious disease around the world. Bacillus Calmette-Guérin (BCG) is the only TB vaccine licensed for use in human beings, and is effective in protecting infants and children against severe miliary and meningeal TB. However, BCG's protective efficacy is variable in adults. Novel TB vaccine candidates being developed include whole-cell vaccines (recombinant BCG (rBCG), attenuated Mycobacterium tuberculosis, killed M. tuberculosis or Mycobacterium vaccae), adjuvanted protein subunit vaccines, viral vector-delivered subunit vaccines, plasmid DNA vaccines, RNA-based vaccines etc...
January 17, 2018: Respirology: Official Journal of the Asian Pacific Society of Respirology
https://www.readbyqxmd.com/read/29339415/genome-wide-identification-by-transposon-insertion-sequencing-of-escherichia-coli-k1-genes-essential-for-in-vitro-growth-gastrointestinal-colonizing-capacity-and-survival-in-serum
#6
Alex J McCarthy, Richard A Stabler, Peter W Taylor
Escherichia coli K1 strains are major causative agents of invasive disease of the new born. The age dependency of infection can be reproduced in the neonatal rat. Colonization of the small intestine following oral administration of K1 bacteria leads rapidly to invasion of the blood circulation; bacteria that avoid capture by the mesenteric lymphatic system and evade antibacterial mechanisms in the blood may disseminate to cause organ-specific infections such as meningitis. Some E. coli K1 surface constituents, in particular the polysialic acid capsule, are known to contribute to invasive potential but a comprehensive picture of the factors that determine the fully virulent phenotype has not so far emerged...
January 16, 2018: Journal of Bacteriology
https://www.readbyqxmd.com/read/29322435/vaccine-associated-paralytic-poliomyelitis-in-a-patient-with-acute-lymphocytic-leukemia
#7
Reza Taherkhani, Fatemeh Farshadpour, Mohammad Reza Ravanbod
We report a case of vaccine-associated paralytic poliomyelitis (VAPP) in an immunocompromised patient with acute lymphocytic leukemia who was initially diagnosed with aseptic meningitis. Isolation of Sabin-like type 1 poliovirus from the patient's cerebrospinal fluid made this a case of vaccine-related poliovirus (VRPV) infection. The patient developed paralysis and respiratory distress and deceased a few months after onset of paralysis with respiratory failure. This tragic case report highlights the emergence of VAPP and indicates the importance of timely diagnosis of VRPV infections to improve clinical management of VRPV-infected patients and to prevent the devastating consequences of silent introduction of VRPVs in treatment wards and eventually in the society...
January 10, 2018: Journal of Neurovirology
https://www.readbyqxmd.com/read/29318111/escherichia-coli-in-iran-an-overview-of-antibiotic-resistance-a-review-article
#8
REVIEW
Hesam Alizade
Background: Escherichia coli is the most prominent cause of infectious diseases that span from the gastrointestinal tract to extra-intestinal sites such as urinary tract infection, septicaemia, and neonatal meningitis. The emergence and spread of antibiotic resistance in E. coli is an increasing public health concern across the world. Rising resistance in E. coli isolates is also observed in Iran. This review summarizes the status of antibiotic resistance of E. coli isolates in Iran from 2007 to 2016...
January 2018: Iranian Journal of Public Health
https://www.readbyqxmd.com/read/29311092/pharmacodynamics-of-flubendazole-for-cryptococcal-meningoencephalitis-repurposing-and-reformulation-of-an-anti-parasitic-agent-for-a-neglected-fungal-disease
#9
Gemma L Nixon, Laura McEntee, Adam Johnson, Nikki Farrington, Sarah Whalley, Joanne Livermore, Cristien Natal, Gina Washbourn, Jaclyn Bibby, Neil Berry, Jodi Lestner, Megan Truong, Andrew Owen, David Lalloo, Ian Charles, William Hope
Current therapeutic options for cryptococcal meningitis are limited by toxicity, global supply and emergence of resistance. There is an urgent need to develop additional antifungal agents that are fungicidal within the central nervous system and preferably orally bioavailable. The benzimidazoles have broad-spectrum anti-parasitic activity, but also have in vitro antifungal activity that includes Cryptococcus neoformans Flubendazole (a benzimidazole) has been reformulated by Janssen Pharmaceutica as an amorphous solid drug nanodispersion to develop an orally bioavailable medicine for the treatment of neglected tropical diseases such as onchocerciasis...
January 8, 2018: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/29302151/cryptococcal-meningitis-masquerading-as-normal-pressure-hydrocephalus-in-an-immune-competent-adult
#10
Hitesh Raheja, Ankur Sinha, Pavan Kumar Irukulla, Yizhak Kupfer
We report a case of acute cryptococcal meningitis (CM) masquerading as normal pressure hydrocephalus (NPH) in an immune-competent female. An 85-year-old human immunodeficiency virus-negative female presented to the emergency room for altered mental status and difficulty walking. She was increasingly lethargic, with urinary incontinence and gait instability. A previous computed tomography was reported to have ventricular dilatation out of proportion to the degree of cortical atrophy. Magnetic resonance scan of the brain revealed ventricular dilatation and subtle debris layering the occipital horns of the lateral ventricles...
October 2017: Journal of Global Infectious Diseases
https://www.readbyqxmd.com/read/29301177/iatrogenic-spinal-subarachnoid-hematoma-after-diagnostic-lumbar-puncture
#11
Jung Hyun Park, Jong Yeol Kim
Spinal subarachnoid hematoma (SSH) following diagnostic lumbar puncture is very rare. Generally, SSH is more likely to occur when the patient has coagulopathy or is undergoing anticoagulant therapy. Unlike the usual complications, such as headache, dizziness, and back pain at the needle puncture site, SSH may result in permanent neurologic deficits if not properly treated within a short period of time. An otherwise healthy 43-year-old female with no predisposing factors presented with fever and headache. Diagnostic lumbar puncture was performed under suspicion of acute meningitis...
December 2017: Korean Journal of Spine
https://www.readbyqxmd.com/read/29298827/herpes-simplex-virus-infection-in-infants-undergoing-meningitis-evaluation
#12
Andrea T Cruz, Stephen B Freedman, Dina M Kulik, Pamela J Okada, Alesia H Fleming, Rakesh D Mistry, Joanna E Thomson, David Schnadower, Joseph L Arms, Prashant Mahajan, Aris C Garro, Christopher M Pruitt, Fran Balamuth, Neil G Uspal, Paul L Aronson, Todd W Lyons, Amy D Thompson, Sarah J Curtis, Paul T Ishimine, Suzanne M Schmidt, Stuart A Bradin, Kendra L Grether-Jones, Aaron S Miller, Jeffrey Louie, Samir S Shah, Lise E Nigrovic
BACKGROUND: Although neonatal herpes simplex virus (HSV) is a potentially devastating infection requiring prompt evaluation and treatment, large-scale assessments of the frequency in potentially infected infants have not been performed. METHODS: We performed a retrospective cross-sectional study of infants ≤60 days old who had cerebrospinal fluid culture testing performed in 1 of 23 participating North American emergency departments. HSV infection was defined by a positive HSV polymerase chain reaction or viral culture...
January 3, 2018: Pediatrics
https://www.readbyqxmd.com/read/29297142/bacterial-infections-of-the-central%C3%A2-nervous-system
#13
REVIEW
Renu Suthar, Naveen Sankhyan
Bacterial infections of the central nervous system (CNS) continue to be an important cause of morbidity and mortality in children. The spectrum of bacterial infection of CNS includes; focal or multifocal infections like brain abscesses or subdural empyema; or more generalized or diffuse infections like pyogenic meningitis or ventriculitis. Focal and generalized infections may co-exist in an individual patient. Prompt and adequate antibiotic therapy and occasionally neurosurgical interventions are the cornerstone of effective management...
January 3, 2018: Indian Journal of Pediatrics
https://www.readbyqxmd.com/read/29286017/a-case-of-invasive-infection-caused-by-a-highly-virulent-strain-of-klebsiella-pneumoniae-displaying-hypermucoviscosity-in-a-patient-with-hepatic-involvement-without-liver-abscess
#14
Margherita Scapaticci, Marta Biscaro, Francesco Burelli, Lucio Cadamuro, Renzo Biscaro, Andrea Bartolini
Klebsiella pneumoniae is an opportunistic nosocomial pathogen belonging to the Enterobacteriaceae family that is associated with a wide range of infections. In the 1980s a new hypervirulent (hypermucoviscous) variant of Klebsiella pneumoniae (hvKP) emerged in southeast Asia and is now increasingly spreading to Western countries due to an invasive syndrome. hvKP isolates can cause serious, life-threatening community-acquired infections in younger healthy hosts, including liver abscess, pneumonia, meningitis and endophthalmitis...
December 1, 2017: Le Infezioni in Medicina
https://www.readbyqxmd.com/read/29284248/streptococcus-suis-a-re-emerging-pathogen-associated-with-occupational-exposure-to-pigs-or-pork-products-part-i-epidemiology
#15
Jacek Dutkiewicz, Jacek Sroka, Violetta Zając, Bernard Wasiński, Ewa Cisak, Anna Sawczyn, Anna Kloc, Angelina Wójcik-Fatla
<i>Streptococcus suis</i> (ex Elliot 1966, Kilpper-Bälz & Schleifer 1987) is a facultatively anaerobic Gram-positive ovoid or coccal bacterium surrounded by a polysaccharide capsule. Based on the antigenic diversity of the capsule, <i>S. suis</i> strains are classified serologically into 35 serotypes. <i>Streptococcus suis</i> is a commensal of pigs, commonly colonizing their tonsils and nasal cavities, mostly in weaning piglets between 4-10 weeks of age. This species occurs also in cattle and other mammals, in birds and in humans...
December 23, 2017: Annals of Agricultural and Environmental Medicine: AAEM
https://www.readbyqxmd.com/read/29283023/neuroinflammation-mast-cells-and-glia-dangerous-liaisons
#16
Stephen D Skaper, Laura Facci, Morena Zusso, Pietro Giusti
The perspective of neuroinflammation as an epiphenomenon following neuron damage is being replaced by the awareness of glia and their importance in neural functions and disorders. Systemic inflammation generates signals that communicate with the brain and leads to changes in metabolism and behavior, with microglia assuming a pro-inflammatory phenotype. Identification of potential peripheral-to-central cellular links is thus a critical step in designing effective therapeutics. Mast cells may fulfill such a role...
October 2017: Neuroscientist: a Review Journal Bringing Neurobiology, Neurology and Psychiatry
https://www.readbyqxmd.com/read/29250041/stenotrophomonas-maltophilia-as-an-emerging-ubiquitous-pathogen-looking-beyond-contemporary-antibiotic-therapy
#17
REVIEW
Anthony A Adegoke, Thor A Stenström, Anthony I Okoh
Stenotrophomonas maltophilia is a commensal and an emerging pathogen earlier noted in broad-spectrum life threatening infections among the vulnerable, but more recently as a pathogen in immunocompetent individuals. The bacteria are consistently being implicated in necrotizing otitis, cutaneous infections including soft tissue infection and keratitis, endocarditis, meningitis, acute respiratory tract infection (RTI), bacteraemia (with/without hematological malignancies), tropical pyomyositis, cystic fibrosis, septic arthritis, among others...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29247710/oropouche-fever-an-emergent-disease-from-the-americas
#18
Daniel Romero-Alvarez, Luis E Escobar
Oropouche virus is the aetiological agent of Oropouche fever, a zoonotic disease mainly transmitted by midges of the species Culicoides paraensis. Although the virus was discovered in 1955, more attention has been given recently to both the virus and the disease due to outbreaks of Oropouche fever in different areas of Brazil and Peru. Serological studies in human and wild mammals have also found Oropouche virus in Argentina, Bolivia, Colombia, and Ecuador. Several mammals act as reservoirs of the disease, although the sylvatic cycle of Oropouche virus remains to be assessed properly...
December 13, 2017: Microbes and Infection
https://www.readbyqxmd.com/read/29242199/organ-specific-lymphatic-vasculature-from-development-to-pathophysiology
#19
REVIEW
Tatiana V Petrova, Gou Young Koh
Recent discoveries of novel functions and diverse origins of lymphatic vessels have drastically changed our view of lymphatic vasculature. Traditionally regarded as passive conduits for fluid and immune cells, lymphatic vessels now emerge as active, tissue-specific players in major physiological and pathophysiological processes. Lymphatic vessels show remarkable plasticity and heterogeneity, reflecting their functional specialization to control the tissue microenvironment. Moreover, alternative developmental origins of lymphatic endothelial cells in some organs may contribute to the diversity of their functions in adult tissues...
December 14, 2017: Journal of Experimental Medicine
https://www.readbyqxmd.com/read/29240724/large-outbreak-of-neisseria-meningitidis-serogroup-c-nigeria-december-2016-june-2017
#20
Chimeremma Nnadi, John Oladejo, Sebastian Yennan, Adesola Ogunleye, Chidinma Agbai, Lawal Bakare, Mohammed Abdulaziz, Amina Mohammed, Mary Stephens, Kyadindi Sumaili, Olivier Ronveaux, Helen Maguire, Debra Karch, Mahmood Dalhat, Martin Antonio, Andre Bita, Ifeanyi Okudo, Patrick Nguku, Ryan Novak, Omotayo Bolu, Faisal Shuaib, Chikwe Ihekweazu
On February 16, 2017, the Ministry of Health in Zamfara State, in northwestern Nigeria, notified the Nigeria Centre for Disease Control (NCDC) of an increased number of suspected cerebrospinal meningitis (meningitis) cases reported from four local government areas (LGAs). Meningitis cases were subsequently also reported from Katsina, Kebbi, Niger, and Sokoto states, all of which share borders with Zamfara State, and from Yobe State in northeastern Nigeria. On April 3, 2017, NCDC activated an Emergency Operations Center (EOC) to coordinate rapid development and implementation of a national meningitis emergency outbreak response plan...
December 15, 2017: MMWR. Morbidity and Mortality Weekly Report
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