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https://www.readbyqxmd.com/read/29785613/neuroinfections-caused-by-fungi
#1
REVIEW
Katarzyna Góralska, Joanna Blaszkowska, Magdalena Dzikowiec
BACKGROUND: Fungal infections of the central nervous system (FIs-CNS) have become significantly more common over the past 2 decades. Invasion of the CNS largely depends on the immune status of the host and the virulence of the fungal strain. Infections with fungi cause a significant morbidity in immunocompromised hosts, and the involvement of the CNS may lead to fatal consequences. METHODS: One hundred and thirty-five articles on fungal neuroinfection in PubMed, Google Scholar, and Cochrane databases were selected for review using the following search words: "fungi and CNS mycoses", CNS fungal infections", "fungal brain infections", " fungal cerebritis", fungal meningitis", "diagnostics of fungal infections", and "treatment of CNS fungal infections"...
May 21, 2018: Infection
https://www.readbyqxmd.com/read/29783165/preferential-feeding-in-naegleria-fowleri-intracellular-bacteria-isolated-from-amoebae-in-operational-drinking-water-distribution-systems
#2
Haylea C Miller, Matthew J Morgan, Tom Walsh, Jason T Wylie, Anna H Kaksonen, Geoffrey J Puzon
The amoeba Naegleria fowleri is the causative agent of the highly fatal disease, primary amoebic meningoencephalitis, and estimated to cause 16 deaths per year in the United States alone. Colonisation of drinking water distribution systems (DWDSs) by the N. fowleri is a significant public health issue. Understanding the factors which enable this pathogen to colonise and thrive in DWDSs is critical for proper management. The microbial ecology within DWDSs may influence the ability of N. fowleri to colonise DWDSs by facilitating the availability of an appropriate food source...
May 6, 2018: Water Research
https://www.readbyqxmd.com/read/29779827/zika-virus-report-from-the-task-force-on-tropical-diseases-by-the-world-federation-of-societies-of-intensive-and-critical-care-medicine
#3
Gisele Sampaio Silva, Guy A Richards, Tim Baker, Jorge Hidalgo, Juan Ignacio Silesky Jiménez, Pravin Amin
Zika fever is an acute infectious disease caused by the Zika virus (ZIKV), an RNA virus belonging to the genus Flavivirus. ZIKV can be transmitted by bites from Aedes aegypti and Aedes albopictus species, sexual activity, blood transfusion and from mother to fetus during pregnancy and delivery. A total of 50 territories and countries in the Americas had reported ZIKV infections. For those with symptoms, the presentation is similar to dengue fever with body aches, joint pain, fatigue, malaise, fever and conjunctivitis lasting up to seven days...
April 5, 2018: Journal of Critical Care
https://www.readbyqxmd.com/read/29774297/parasitic-and-zoonotic-meningoencephalitis-in-humans-and-equids-current-knowledge-and-the-role-of-halicephalobus-gingivalis
#4
REVIEW
ThankGod E Onyiche, Theresa O Okute, Oluwasina S Oseni, Dennis O Okoro, Abdullahi A Biu, Albert W Mbaya
Halicephalobus gingivalis is a saprophytic nematode parasite that causes a rare form of fatal meningoencephalomyelitis in equids, humans, and ruminants. This nematode has neurotropic activity, but has also been found in the kidney, liver, lungs, optic nerves and even heart of its host. Despite the zoonotic potential and severity of the disease, the epidemiology, pathogenesis, life cycle, and risk factors are poorly understood. Cases have been reported from several countries in Europe countries and North America but none is recorded in Africa except Egypt...
February 2018: Parasite Epidemiology and Control
https://www.readbyqxmd.com/read/29773562/neuroimaging-findings-of-zika-virus-associated-neurologic-complications-in-adults
#5
REVIEW
L C Hygino da Cruz, O J M Nascimento, F P P L Lopes, I R F da Silva
When the first suspected cases of neurologic disorders associated with the Zika virus were noticed in Brazil in late 2015, several studies had been conducted to understand the pathophysiology of the disease and its associated complications. In addition to its well-established association with microcephaly in neonates, the Zika virus infection has also been suggested to trigger other severe neurologic complications in adults, such as Guillain-Barré syndrome, radiculomyelitis, and meningoencephalitis. Hence, the Zika virus should be deemed a global threat that can cause devastating neurologic complications among individuals in all age ranges...
May 17, 2018: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/29766338/an-unusual-surgical-indication-for-cerebral-tuberculosis-status-dystonicus-case-report
#6
Andrea Franzini, Angelo Franzini, Vincenzo Levi, Roberto Cordella, Giuseppe Messina
Actual indications for surgery in tuberculosis are limited to obtaining a diagnosis, acquiring tissue for culture studies, treating hydrocephalus, aspiring a brain abscess, and reducing intracranial pressure in patients with multiple tuberculomas. Tuberculosis-related movement disorders are usually treated pharmacologically. We report on a child affected by post-tubercular generalized dystonia, who progressed to status dystonicus (SD) and underwent stereotactic bilateral pallidotomy. After surgery, SD resolved, and drugs were rapidly tapered...
May 15, 2018: Acta Neurochirurgica
https://www.readbyqxmd.com/read/29762935/septic-shock-meningoencephalitis-and-multiple-pulmonary-emboli-case-report-of-an-uncommon-clinical-presentation-of-ventricular-septal-defect-acute-infective-endocarditis
#7
Laura Varela Barca, Jose López-Menéndez, Ana Redondo Palacios, Jorge Rodríguez-Roda Stuart
The case is reported of a 55 year-old woman, with a previously known congenital septal defect, who was admitted to the emergency department with a diagnosis of meningoencephalitis, septic shock, and rapid clinical deterioration. Echocardiography revealed a vegetation occupying the right-side heart. Endocarditis affectation of the septal defect, aortic and tricuspid valves was noted and blood cultures were positive for Staphylococcus aureus. Urgent surgical treatment was performed whereby the ventricular septal defect was closed, a meticulous debridement of the affected area was conducted, and the aortic and tricuspid valves were replaced...
September 2017: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/29762386/exposure-response-analysis-of-micafungin-in-neonatal-candidiasis-pooled-analysis-of-two-clinical-trials
#8
Laura L Kovanda, Thomas J Walsh, Daniel K Benjamin, Antonio Arrieta, David A Kaufman, P Brian Smith, Paolo Manzoni, Amit V Desai, Atsunori Kaibara, Peter L Bonate, William W Hope
BACKGROUND: Neonatal candidiasis causes significant morbidity and mortality in high risk infants. The micafungin dosage regimen of 10 mg/kg established for the treatment of neonatal candidiasis is based on a laboratory animal model of neonatal hematogenous Candida meningoencephalitis and pharmacokinetic (PK)-pharmacodynamic (PD) bridging studies. However, little is known about the how these PK-PD data translate clinically. METHODS: Micafungin plasma concentrations from infants were used to construct a population PK model using Pmetrics software...
June 2018: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/29759049/klinefelter-s-syndrome-with-lupus-encephalitis-and-retroperitoneal-teratoma
#9
C Ng Wq, S E Eide, Huang J, Khor Ym
We report a case of a middle-aged male who presented with pyrexia of unknown origin, oral ulcers, rash and bicytopenia. His past medical history included unexplained proteinuria, infertility and joint pain. Initial workup showed a large retroperitoneal soft tissue mass, which has appeared stable for 10 years. He subsequently developed neuropsychiatric symptoms with imaging findings of meningoencephalitis. Concurrent investigations showed elevated ANA, anti-double-stranded DNA (dsDNA) and ESR levels, as well as low complement levels...
January 1, 2018: Lupus
https://www.readbyqxmd.com/read/29758005/a-review-of-the-ongoing-research-on-zika-virus-treatment
#10
REVIEW
Suely da Silva, Daniel Oliveira Silva Martins, Ana Carolina Gomes Jardim
The Zika fever is an arboviral disease resulting from the infection with Zika virus (ZIKV). The virus is transmitted to humans by the bite of Aedes mosquitos, mainly Aedes aegypti and Aedes albopictus . ZIKV has been detected for decades in African and Asian regions and, since 2007, has spread to other continents; among them, infections are most reported in the Americas. This can be explained by the presence of vectors in highly populated and tropical regions where people are susceptible to contamination. ZIKV has been considered by the World Health Organization a serious public health problem because of the increasing number of cases of congenital malformation and neurological disorders related to its infection, such as microcephaly, Guillain⁻Barré syndrome, meningoencephalitis, and myelitis...
May 14, 2018: Viruses
https://www.readbyqxmd.com/read/29751112/identification-and-molecular-typing-of-naegleria-fowleri-from-a-patient-of-primary-amebic-meningoencephalitis-pam-in-china
#11
Ling-Ling Zhang, Mao Wu, Bang-Chuan Hu, Hua-Liang Chen, Jin-Ren Pan, Wei Ruan, Li-Nong Yao
Naegleria fowleri (N. fowleri) is the only Naegleria spp. known to cause an acute, fulminant, and rapidly fatal central nervous system infection called primary amebic meningoencephalitis (PAM) in human. In 2016, a suspected PAM patient was found in Zhejiang Province of China. The pathogen was identified by microscopic examination and PCR. The positive PCR products were sequenced and the sequences were aligned using NCBI BLAST programme. The homologous and phylogenetic analysis was conducted using the MEGA 6 programme...
May 8, 2018: International Journal of Infectious Diseases: IJID
https://www.readbyqxmd.com/read/29744128/fatal-case-of-amoebic-encephalitis-masquerading-as-herpes
#12
Rikesh Baral, Binit Vaidya
Primary amoebic meningoencephalitis (PAM) is a rare, fulminating, hemorrhagic infection of the brain caused by Naegleria fowleri , a thermophilic, free-living amoeba. A 74-year male presented with sudden severe global headache and fever with features of anomic aphasia. Magnetic resonance imaging (MRI) suggested herpes encephalitis and acyclovir (IV) was started but the patient developed altered sensorium, agitation and progressive weakness of lower limbs with gradual truncal weakness. Repeat MRI showed increase in lesion size and edema with confluent blood areas...
May 2018: Oxford Medical Case Reports
https://www.readbyqxmd.com/read/29743772/atypical-neurological-manifestations-of-chikungunya-fever-two-case-reports
#13
Subodh Kumar Mahto, Pulin Kumar Gupta, Akanksha Singh, Ramesh Chand Meena
Chikungunya fever (CHIK) is an arboviral disease which is transmitted by a mosquito bite ( Aedes aegypti ). Fever, polyarthralgia, and maculopapular rash are hallmark clinical manifestations of this disease. These manifestations are self-liming and complete recovery is seen in most of the cases. However, atypical and lethal complications such as myocarditis, hepatitis, Guillain-Barre syndrome (GBS), and meningoencephalitis have been reported in few cases of CHIK. We hereby report two cases of chikungunya infection where rare and atypical manifestations of CHIK, i...
April 2018: Indian Journal of Critical Care Medicine
https://www.readbyqxmd.com/read/29738737/iron-economy-in-naegleria-gruberi-reflects-its-metabolic-flexibility
#14
Jan Mach, Jarmila Bíla, Kateřina Ženíšková, Dominik Arbon, Ronald Malych, Marie Glavanakovová, Eva Nývltová, Robert Sutak
Naegleria gruberi is a free-living amoeba, closely related to the human pathogen Naegleria fowleri, the causative agent of the deadly human disease primary amoebic meningoencephalitis. Herein, we investigated the effect of iron limitation on different aspects of N. gruberi metabolism. Iron metabolism is among the most conserved pathways found in all eukaryotes. It includes the delivery, storage and utilization of iron in many cell processes. Nevertheless, most of the iron metabolism pathways of N. gruberi are still not characterized, even though iron balance within the cell is crucial...
May 5, 2018: International Journal for Parasitology
https://www.readbyqxmd.com/read/29722741/neuroinvasive-listeriosis-could-petechial-hemorrhages-be-a-diagnostic-clue
#15
Sevda Diker, Serhat Okar, Lale Mehdikhanova, Ethem Murat Arsava, Asli Kurne, Işin Ünal Çevik, Yakut Akyön, Şehnaz Alp, Çağkan İnkaya, Murat Akova, Melike Mut, Rahşan Göçmen, Kader Karli Oğuz, Mehmet Akif Topçuoğlu
INTRODUCTION: Listeria monocytogenes-related central nervous system infections may involve the cerebral parenchyma. Meningitis and meningoencephalitis are the most commonly seen forms and mainly affect immunocompromised patients; however, a less frequent form, rhombencephalitis, can occur in otherwise healthy people. Early treatment with appropriate antibiotic therapy is crucial for this otherwise fatal disorder. However, it is not always possible to rapidly establish the diagnosis because of varying presentations and discrepancies in diagnostic tests...
May 2018: Neurologist
https://www.readbyqxmd.com/read/29717641/eastern-equine-encephalitis-in-puppies-in-michigan-and-new-york-states
#16
Caroline Andrews, Jodie Gerdin, Jon Patterson, Elizabeth L Buckles, Scott D Fitzgerald
Eastern equine encephalitis virus (EEEV) is classified as a select agent and is capable of causing mortality in humans and a number of veterinary species. Herein, we describe 3 cases of EEE in puppies in Michigan and New York. Two puppies were euthanized following an acute history of seizures and obtundation. A littermate of one of these puppies died 2 wk earlier following a history of anorexia and fever. All 3 puppies lacked significant gross anatomic lesions at autopsy and tested negative for rabies virus...
April 1, 2018: Journal of Veterinary Diagnostic Investigation
https://www.readbyqxmd.com/read/29716506/parechovirus-an-important-emerging-infection-in-young-infants
#17
Philip N Britton, Cheryl A Jones, Kristine Macartney, Allen C Cheng
Epidemics of human parechovirus (HPeV) causing disease in young children have occurred every 2 years in Australia since 2013. HPeV genotype 3 caused the epidemic from late 2017 to early 2018. Most HPeV infections cause no or mild symptoms including gastroenteritis or influenza-like illness. Characteristically, young infants present with fever, irritability and on occasions a diffuse rash ("red, hot and angry" babies). Severe disease can manifest as meningoencephalitis, seizures or sepsis-like presentations (including septic shock), or less common presentations including signs of surgical abdomen...
May 7, 2018: Medical Journal of Australia
https://www.readbyqxmd.com/read/29709989/congenital-cytomegalovirus-pneumonitis-and-treatment-response-evaluation-using-viral-load-during-ganciclovir-therapy-a-case-report
#18
Minsoo Lee, Keiji Goishi, Yuka Torii, Yoshinori Ito, Hiroya Ono, Tomoko Mori, Naoyuki Kashiwa, Shinichi Hosokawa, Hiroyuki Shichino
Cytomegalovirus (CMV) is the most common cause of congenital infection. Pneumonitis is considered to be a rare manifestation although congenital CMV infection presents with various non-specific findings. Ganciclovir and valganciclovir are beneficial for improving neurodevelopmental sequelae and hearing outcome of congenital CMV infection, but treatment response evaluationis not well reported. We report a female case of congenital CMV infectionpresenting with pneumonitis, meningoencephalitis, and chorioretinitis...
April 27, 2018: Japanese Journal of Infectious Diseases
https://www.readbyqxmd.com/read/29705691/cxcl13-concentrations-in-cerebrospinal-fluid-of-patients-with-lyme-neuroborreliosis-and-other-neurological-disorders-determined-by-luminex-and-elisa
#19
Mateusz Markowicz, Anna-Margarita Schötta, Michael Kundi, Petra Bogovič, Katarina Ogrinc, Franc Strle, Gerold Stanek
The aims of the study were to determine and compare the concentration of CXCL13 in cerebrospinal fluid (CSF) of patients with Lyme neuroborreliosis (LNB) and various other neurological disorders applying a Luminex based assay and ELISA, and to find factors associated with CXCL13 concentration. CSF samples obtained from four clinically well-defined groups of patients (proven LNB, suspected LNB, tick-borne encephalitis (TBE), and aseptic meningitis/meningoencephalitis other than TBE) - 25 samples per group - were analyzed...
April 20, 2018: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/29703710/co-infection-zikv-and-hsv-1-associated-with-meningoencephalitis-case-report-and-literature-review
#20
Paulo S Ramos de Araújo, Mário L de Mélo Silva Júnior, Marli Tenório, Fabiana G Torreão Dos Santos
A man, 26years-old, presented fever, mental confusion and a progressively worsening headache 6days prior to admission. The CSF study was suggestive of meningoencephalitis, the PCR study revealed presence of HSV-1 and ZIKV, while other immunology tests were negative. ZIKV was also identified in serum. The MRI showed temporal lobe hyper-intensity in FLAIR-weight sequence with areas of contrast enhancement and the electroencephalogram showed slow wave activity in such region. Patient was treated with acyclovir and supportive measures and had good clinical outcome at evaluation after 6 months...
April 24, 2018: Journal of Infection and Public Health
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