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https://www.readbyqxmd.com/read/27918582/investigating-conservation-of-the-cell-cycle-regulated-transcriptional-program-in-the-fungal-pathogen-cryptococcus-neoformans
#1
Christina M Kelliher, Adam R Leman, Crystal S Sierra, Steven B Haase
The pathogenic yeast Cryptococcus neoformans causes fungal meningitis in immune-compromised patients. Cell proliferation in the budding yeast form is required for C. neoformans to infect human hosts, and virulence factors such as capsule formation and melanin production are affected by cell-cycle perturbation. Thus, understanding cell-cycle regulation is critical for a full understanding of virulence factors for disease. Our group and others have demonstrated that a large fraction of genes in Saccharomyces cerevisiae is expressed periodically during the cell cycle, and that proper regulation of this transcriptional program is important for proper cell division...
December 2016: PLoS Genetics
https://www.readbyqxmd.com/read/27917434/what-factors-determine-the-need-for-lumbar-puncture-in-patients-with-fever-and-headache
#2
Ki Joong Kim, Jun Hwi Cho, Joong Bum Moon, Myoung Cheol Shin, Taek Geun Ohk, Hui Young Lee, Chan Woo Park
INTRODUCTION: We performed this study to search for clinical features and laboratory parameters that could facilitate the process of selection of patients who should receive lumbar punctures among those presenting with headache and fever. METHODS: We selected all patients aged ≥ 16 years who presented to and received lumbar puncture in the emergency department (ED) of Kangwon National University Hospital, South Korea, between 2011 and 2013. Patients who received a lumbar puncture were divided into two groups - patients diagnosed with viral meningitis and those that were not...
December 5, 2016: Singapore Medical Journal
https://www.readbyqxmd.com/read/27916211/a-32-year-study-of-the-effect-of-pneumococcal-vaccines-on-invasive-streptococcus-pneumoniae-disease
#3
Ronald J Stanek, Nancy B Norton, Maurice A Mufson
BACKGROUND: Worldwide, Streptococcus pneumoniae commonly causes community-acquired pneumonia, meningitis, septicemia and otitis media. Invasive pneumococcal infection (IPD) represents the most serious presentation, occurs in approximately 1 in 4 cases and engenders case fatality rates (CFR) in pneumonia of 20-25% and meningitis of 35-40%. We investigated IPD for 32 years in an American city to assess the effect of differing pneumococcal vaccines on serotype occurrence and CFR among children and adults...
December 2016: American Journal of the Medical Sciences
https://www.readbyqxmd.com/read/27903680/herpes-simplex-virus-specific-t-cell-response-in-a-cohort-with-primary-genital-infection-correlates-inversely-with-frequency-of-subsequent-recurrences
#4
Elisabeth Franzen-Röhl, Danika Schepis, Fredrik Atterfelt, Kristina Franck, Arne Wikström, Jan-Åke Liljeqvist, Tomas Bergström, Elisabeth Aurelius, Klas Kärre, Louise Berg, Hans Gaines
OBJECTIVES: During the last decades, a changing epidemiological pattern of genital herpes simplex virus (HSV) infection has emerged. Primary infection is now caused as often by HSV-1 as by HSV-2. Once established, HSV can be reactivated leading to recurrent mucocutaneous lesions as well as meningitis. Why some otherwise immune-competent individuals experience severe and frequent recurrences is not known, and the immunological mechanism underlying recurrent symptomatic HSV infection is not fully understood...
November 30, 2016: Sexually Transmitted Infections
https://www.readbyqxmd.com/read/27902653/meningococcal-disease-in-children-in-argentina-a-three-year-active-sentinel-hospital-surveillance-study
#5
Ángela Gentile, Julia Bakir, María Rosa Agosti, Gabriela Ensinck, Hector Abate, Andrea Gajo Gane, Alejandro Santillán Iturres, Adriana Efron, Mabel Regueira, Ricardo Rüttimann
BACKGROUND: Meningococcal disease (MD) is a medical emergency and a serious public health problem. As new meningococcal vaccines become available, MD surveillance is crucial to provide baseline epidemiologic data before implementing preventive measures. We estimated MD incidence and epidemiology in Argentina using hospital-based surveillance. METHODS: 3-year prospective active surveillance in patients ≤15 years of age conducted at 6 pediatric hospital sentinel units (March 2012-February 2015)...
November 28, 2016: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/27893883/use-of-magnetic-resonance-imaging-to-visualize-leptomeningeal-inflammation-in-patients-with-multiple-sclerosis-a-review
#6
Jonathan Zurawski, Hans Lassmann, Rohit Bakshi
Importance: Multiple sclerosis (MS) is a chronic demyelinating disease of the central nervous system traditionally characterized by an initial relapsing-remitting clinical course and focal inflammatory lesions that have a predilection for the periventricular white matter. Recently, however, histopathologic and imaging studies have illustrated a more complex pathologic substrate involving cortical demyelination, gray matter atrophy, and meningeal inflammation. Neuroimaging advances have facilitated improved detection of cortical pathology, but our understanding of the pathogenesis of cortical disease remains incomplete...
November 28, 2016: JAMA Neurology
https://www.readbyqxmd.com/read/27884478/vaccine-provision-delivering-sustained-widespread-use
#7
Scott Preiss, Nathalie Garçon, Anthony L Cunningham, Richard Strugnell, Leonard R Friedland
The administration of a vaccine to a recipient is the final step in a development and production process that may have begun several decades earlier. Here we describe the scale and complexity of the processes that brings a candidate vaccine through clinical development to the recipient. These challenges include ensuring vaccine quality (between 100 and 500 different Quality Control tests are performed during production to continually assess safety, potency and purity); making decisions about optimal vaccine presentation (pre-filled syringes versus multi-dose vials) that affect capacity and supply; and the importance of maintaining the vaccine cold chain (most vaccines have stringent storage temperature requirements necessary to maintain activity and potency)...
November 21, 2016: Vaccine
https://www.readbyqxmd.com/read/27884058/efficiency-of-silencing-rna-for-removal-of-transthyretin-v30m-in-a-ttr-leptomeningeal-animal-model
#8
Paula Gonçalves, Helena Martins, Susete Costelha, Luis F Maia, Maria Joao Saraiva
Some TTR mutants target the central nervous system (CNS). Familial amyloid polyneuropathy (FAP) with leptomeningeal involvement has been described in 9% of transthyretin (TTR) mutations and in valine for methionine at position 30 (V30M) patients. These individuals present dementia, ataxia, brain hemorrhages and focal neurological episodes (FNEs). FNEs occurred also in V30M FAP patients with longer disease duration, who have undergone liver transplant to remove the source of plasma mutant TTR as a form of treatment...
December 2016: Amyloid: the International Journal of Experimental and Clinical Investigation
https://www.readbyqxmd.com/read/27880884/anti-atherosclerosis-and-cardio-protective-effects-of-the-angong-niuhuang-pill-on-a-high-fat-and-vitamin-d3-induced-rodent-model-of-atherosclerosis
#9
Wen-Juan Fu, Ting Lei, Zhen Yin, Jian-Hao Pan, Yu-Shuang Chai, Xiao-Yun Xu, Yi-Xi Yan, Zhi-Hua Wang, Jian Ke, Gang Wu, Ren-He Xu, Manish Paranjpe, Lintao Qu, Hong Nie
ETHNOPHARMACOLOGICAL RELEVANCE: The Angong Niuhuang Pill (ANP) is a well known Chinese traditional therapeutic for the treatment for diseases affecting the Central Nervous System (CNS). Components of the ANP formulation, including Bovis Calculus Sativus, Pulvis Bubali Comus Concentratus, Moschus, Margarita, Cinnabaris, Realgar, Coptidis Rhizoma, Scutellariae Radix, Gardeniae Fructus, Curcumae Radix, and Bomeolum Syntheticum, have been used for the treatment of stroke, encephalitis and emergency meningitis across Asia, especially in China for hundreds of years...
November 20, 2016: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/27878586/-parainfectious-optic-neuritis-with-macular-infiltrate-in-neisseria-meningitidis-b-meningitis
#10
A Chronopoulos, F Hoogewoud, H Steffen, G Thumann
OBJECTIVE: We report on the case of a young immunocompetent female patient with parainfectious optic neuritis and macular inflitrate due to Neisseria meningitidis B meningitis. METHOD: Case report RESULTS: A 22-year-old female patient was admitted to the emergency department for intensive care treatment with a strong suspicion of meningitis. Clinical and serological parameters were indicative of a bacterial genesis of the meningitis. By analysis of the cerebrospinal fluid (CSF) Neisseria meningitidis type B could be detected...
November 23, 2016: Der Ophthalmologe: Zeitschrift der Deutschen Ophthalmologischen Gesellschaft
https://www.readbyqxmd.com/read/27875016/cryptococcal-infections-in-solid-organ-transplant-recipients-over-a-15-year-period-at-a-state-transplant-center
#11
Ian Gassiep, David McDougall, Joel Douglas, Ross Francis, Elliott G Playford
BACKGROUND: The aim of this research paper is to determine the incidence, risk factors and clinical outcome of solid organ transplant (SOT) recipients diagnosed and treated for cryptococcosis at our institution. METHODS: Retrospective analysis of all patients with SOT diagnosed and treated for cryptococcal infection occurring between January 2001 and December 2015. RESULTS: Of 102 patients diagnosed with cryptococcal infection, 23 were SOT recipients...
November 22, 2016: Transplant Infectious Disease: An Official Journal of the Transplantation Society
https://www.readbyqxmd.com/read/27862555/genomic-epidemiology-of-cryptococcus-yeasts-identifies-adaptation-to-environmental-niches-underpinning-infection-across-an-african-hiv-aids-cohort
#12
Mathieu Vanhove, Mathew A Beale, Johanna Rhodes, Duncan Chanda, Shabir Lakhi, Geoffrey Kwenda, Sile Molloy, Natasha Karunaharan, Neil Stone, Thomas S Harrison, Tihana Bicanic, Matthew C Fisher
Emerging infections caused by fungi have become a widely recognized global phenomenon and are causing an increasing burden of disease. Genomic techniques are providing new insights into the structure of fungal populations, revealing hitherto undescribed fine-scale adaptations to environments and hosts that govern their emergence as infections. Cryptococcal meningitis is a neglected tropical disease that is responsible for a large proportion of AIDS-related deaths across Africa; however, the ecological determinants that underlie a patient's risk of infection remain largely unexplored...
October 19, 2016: Molecular Ecology
https://www.readbyqxmd.com/read/27828810/community-acquired-bacterial-meningitis
#13
Joost M Costerus, Matthijs C Brouwer, Merijn W Bijlsma, Diederik van de Beek
PURPOSE OF REVIEW: Bacterial meningitis is a medical emergency and is associated with a high disease burden. We reviewed recent progress in the management of patients with community-acquired bacterial meningitis. RECENT FINDINGS: The worldwide burden of disease of bacterial meningitis remains high, despite the decreasing incidence following introduction of routine vaccination campaigns. Delay in diagnosis and treatment remain major concerns in the management of acute bacterial meningitis...
November 8, 2016: Current Opinion in Infectious Diseases
https://www.readbyqxmd.com/read/27822198/looks-like-tuberculous-meningitis-but-not-a-case-of-rhinocerebral-mucormycosis-with-garcin-syndrome
#14
HongNa Yang, CuiLan Wang
Rhinocerebral mucomycosis (RCM) as an emerging opportunistic, angioinvasive, and devastating fungi infection with high mortality is difficult to be diagnosed early because of the lack of specific clinical features or manifestations. Garcin syndrome is more often caused by skull base and rhinopharyngeal tumors or metastases, and basal meningitis. We reported that an aged diabetic man, involved nearly all cranial nerves (Garcin syndrome), who was at first suspected to be suffered from tuberculous meningitis, ultimately developed typically progressing RCM...
2016: Frontiers in Neurology
https://www.readbyqxmd.com/read/27821092/human-meningitis-due-to-streptococcus-suis-in-lom%C3%A3-togo-a-case-report
#15
Mireille Prince-David, Mounerou Salou, Corinne Marois-Créhan, Komi Assogba, Céline Plainvert, Koffi A Balogou, Claire Poyart, Asmaa Tazi
BACKGROUND: Streptococcus suis is a zoonotic pathogen which represents the leading cause of meningitis in Southeast Asia and an emerging pathogen in the Western world, the main risk factor for infection being contact with pigs. In Africa, the prevalence of S. suis infections in swine and humans is largely unrecognized, with only one recent report of a limited case series. CASE PRESENTATION: We describe a human case of meningitis due to S. suis in a 32-year-old man living in Togo...
November 8, 2016: BMC Infectious Diseases
https://www.readbyqxmd.com/read/27820969/the-global-meningococcal-initiative-global-epidemiology-the-impact-of-vaccines-on-meningococcal-disease-and-the-importance-of-herd-protection
#16
Ray Borrow, Pedro Alarcón, Josefina Carlos, Dominique A Caugant, Hannah Christensen, Roberto Debbag, Philippe De Wals, Gabriela Echániz-Aviles, Jamie Findlow, Chris Head, Daphne Holt, Hajime Kamiya, Samir K Saha, Sergey Sidorenko, Muhamed-Kheir Taha, Caroline Trotter, Julio A Vázquez Moreno, Anne von Gottberg, Marco A P Sáfadi
The 2015 Global Meningococcal Initiative (GMI) meeting discussed the global importance of meningococcal disease (MD) and its continually changing epidemiology. Areas covered: Although recent vaccination programs have been successful in reducing incidence in many countries (e.g. Neisseria meningitidis serogroup [Men]C in Brazil, MenA in the African meningitis belt), new clones have emerged, causing outbreaks (e.g. MenW in South America, MenC in Nigeria and Niger). The importance of herd protection was highlighted, emphasizing the need for high vaccination uptake among those with the highest carriage rates, as was the need for boosters to maintain individual and herd protection following decline of immune response after primary immunization...
November 22, 2016: Expert Review of Vaccines
https://www.readbyqxmd.com/read/27808261/community-acquired-bacterial-meningitis
#17
Diederik van de Beek, Matthijs Brouwer, Rodrigo Hasbun, Uwe Koedel, Cynthia G Whitney, Eelco Wijdicks
Meningitis is an inflammation of the meninges and subarachnoid space that can also involve the brain cortex and parenchyma. It can be acquired spontaneously in the community - community-acquired bacterial meningitis - or in the hospital as a complication of invasive procedures or head trauma (nosocomial bacterial meningitis). Despite advances in treatment and vaccinations, community-acquired bacterial meningitis remains one of the most important infectious diseases worldwide. Streptococcus pneumoniae and Neisseria meningitidis are the most common causative bacteria and are associated with high mortality and morbidity; vaccines targeting these organisms, which have designs similar to the successful vaccine that targets Haemophilus influenzae type b meningitis, are now being used in many routine vaccination programmes...
November 3, 2016: Nature Reviews. Disease Primers
https://www.readbyqxmd.com/read/27807490/a-case-of-tuberculous-meningitis-with-paradoxical-response-in-a-14-year-old-boy
#18
Murat Özer, Yasemin Özsürekci, Ali Bülent Cengiz, Nagehan Emiralioğlu, Deniz Doğru, Kader Karlı Oğuz, Onur Akça, Özgür Özkayar
A clinical or radiological worsening of already existing lesions or an emergence of new lesions after beginning treatment in patients with tuberculosis (TB) is referred to as the paradoxical response. This has aroused suspicion regarding the accuracy of diagnosis, the possibilities of treatment failure, or the presence of another underlying disease, and thus it is an important topic for clinicians to understand. In this article, the development of a paradox reaction in a 14-year-old male patient diagnosed with and treated for tuberculosis meningitis is reported...
2016: Case Reports in Infectious Diseases
https://www.readbyqxmd.com/read/27798497/recent-advances-in-the-diagnosis-and-management-of-tuberculous-meningitis
#19
Nguyen T H Mai, Guy E Thwaites
PURPOSE OF REVIEW: Tuberculous meningitis is a devastating infection that is hard to diagnose and treat. We have reviewed tuberculous meningitis original research published within the past 18 months, selecting studies which we consider have most advanced knowledge. RECENT FINDINGS: We review advances in diagnostic methods, anti-tuberculosis chemotherapy, and the common complications of tuberculous meningitis. New commercial molecular diagnostic tests, such as GeneXpert MTB/RIF, have an important role in tuberculous meningitis diagnosis, but as with all other available tests, they lack sensitivity and cannot rule out the disease...
October 27, 2016: Current Opinion in Infectious Diseases
https://www.readbyqxmd.com/read/27789117/acute-ataxia-in-children-a-review-of-the-differential-diagnosis-and-evaluation-in-the-emergency-department
#20
REVIEW
Mauro Caffarelli, Amir A Kimia, Alcy R Torres
Acute ataxia in a pediatric patient poses a diagnostic dilemma for any physician. While the most common etiologies are benign, occasional individuals require urgent intervention. Children with stroke, toxic ingestion, infection, and neuro-inflammatory disorders frequently exhibit ataxia as an essential-if not the only-presenting feature. The available retrospective research utilize inconsistent definitions of acute ataxia, precluding the ability to pool data from these studies. No prospective data exist that report on patients presenting to the emergency department with ataxia...
December 2016: Pediatric Neurology
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