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Central nervous system infections

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https://www.readbyqxmd.com/read/29143062/-intracranial-cystic-lesions
#1
REVIEW
F Ahlhelm, K Shariat, S Götschi, S Ulmer
CLINICAL PROBLEM: Intracerebral cysts are common findings in imaging of the neurocranium and are not always clinically significant. The pathological spectrum of intracerebral cysts is, however, very broad and in addition to incidental findings includes developmental disorders, malformation tumors, primary and secondary neoplasms and infectious etiologies, such as cerebral abscess formation, cysticercosis or residuals after congenital cytomegalovirus infections. Intracerebral cystic defects may be caused by inflammatory central nervous system (CNS) diseases, such as multiple sclerosis as well as by mitochondriopathies, leukodystrophy, electrolyte disturbances or osmotic demyelination syndrome or brain infarctions, e...
November 15, 2017: Der Radiologe
https://www.readbyqxmd.com/read/29142539/values-of-magnetic-resonance-imaging-and-cerebrospinal-fluid-analysis-in-the-diagnosis-of-central-nervous-system-associated-infectious-diseases
#2
Dongfeng Zhang
Objective: To discuss the roles of magnetic resonance imaging (MRI) and cerebrospinal fluid analysis in the identification of central nervous system associated infection and provide a reference for the diagnosis and treatment of central nervous system associated infectious diseases. Methods: Seventy-six patients who developed central nervous system infection and were admitted into the Henan People's Hospital between June 2014 and October 2015 were randomly selected as an observation group...
September 2017: Pakistan Journal of Medical Sciences Quarterly
https://www.readbyqxmd.com/read/29142080/human-parechovirus-an-increasingly-recognized-cause-of-sepsis-like-illness-in-young-infants
#3
REVIEW
Laudi Olijve, Lance Jennings, Tony Walls
Human parechovirus (HPeV) is increasingly being recognized as a potentially severe viral infection in neonates and young infants. HPeV belongs to the family Picornaviridae and is currently divided into 19 genotypes. HPeV-1 is the most prevalent genotype and most commonly causes gastrointestinal and respiratory disease. HPeV-3 is clinically the most important genotype due to its association with severe disease in younger infants, which may partly be explained by its distinct virological properties. In young infants, the typical clinical presentation includes fever, severe irritability, and rash, often leading to descriptions of "hot, red, angry babies...
January 2018: Clinical Microbiology Reviews
https://www.readbyqxmd.com/read/29142077/syndromic-panel-based-testing-in-clinical-microbiology
#4
REVIEW
Poornima Ramanan, Alexandra L Bryson, Matthew J Binnicker, Bobbi S Pritt, Robin Patel
The recent development of commercial panel-based molecular diagnostics for the rapid detection of pathogens in positive blood culture bottles, respiratory specimens, stool, and cerebrospinal fluid has resulted in a paradigm shift in clinical microbiology and clinical practice. This review focuses on U.S. Food and Drug Administration (FDA)-approved/cleared multiplex molecular panels with more than five targets designed to assist in the diagnosis of bloodstream, respiratory tract, gastrointestinal, or central nervous system infections...
January 2018: Clinical Microbiology Reviews
https://www.readbyqxmd.com/read/29141755/case-report-failure-of-therapeutic-coma-in-rabies-encephalitis
#5
Abi Manesh, Reeta Subramaniam Mani, Kishore Pichamuthu, Manjeera Jagannati, Vivek Mathew, Rajiv Karthik, Ooriapadickal Cherian Abraham, Geeta Chacko, George M Varghese
Rabies encephalitis is a fulminant, almost universally fatal infection involving the central nervous system. A unique treatment protocol, including anti-exicitotoxic therapy and induced coma was credited with the survival of a vaccinated teenager with bat rabies encephalitis in 2005. However, multiple efforts to replicate this expensive and intense protocol have not been successful. In this article, we report the failure of the protocol in Indian patients with canine-acquired rabies and elucidate the potential explanations for the failure of the protocol in our patients...
October 30, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/29136710/-clinical-characteristics-of-128-hospitalized-patients-with-syndrome-of-inappropriate-antidiuretics-of-different-etiologies
#6
G Chen, L L Li, J Sun, W J Gu, N Jin, W H Yan, K Chen, J Du, X L Wang, L Zang, Y Pei, Q H Guo, G Q Yang, J M Ba, Z H Lyu, J M Lu, Y M Mu, J T Dou
Objective: To summarize and analyze the clinical features and etiologies in hospitalized patients with syndrome of inappropriate antidiuretics (SIAD) during the past 25 years. Methods: All data of 128 patients with SIAD admitted to Chinese PLA General Hospital since January 1991 to January 2016 were collected. SIAD was diagnosed based on the 1957 criterion. Results: (1) The most frequent causes of increased inappropriate secretion of vasopressin were malignant tumors, lung diseases (e. g. pneumonia), and central nervous system diseases, in which malignant tumors accounted for 38...
November 1, 2017: Zhonghua Nei Ke za Zhi [Chinese Journal of Internal Medicine]
https://www.readbyqxmd.com/read/29136036/correction-occurrence-of-leishmania-infantum-in-the-central-nervous-system-of-naturally-infected-dogs-parasite-load-viability-co-infections-and-histological-alterations
#7
https://www.readbyqxmd.com/read/29135829/chikungunya-virus-infections-among-infants-who-classification-not-applicable
#8
Veronique van Keulen, Minke Huibers, Meindert Manshande, Michaël Boele van Hensbroek, Linda van Rooij
Chikungunya virus (ChikV) caused an epidemic on Curaçao in 2014-2015. Infants are highly at risk for clinical syndromes as sepsis-like illness and central nervous system disease. Clinical recognition is important if laboratory test, polymerase chain reaction (PCR) and enzyme-linked immunosorbent assay (ELISA), are not available. The World Health Organization (WHO) created criteria for identification of probable ChikV. None of the studied infants met these criteria. We believe the WHO suggested criteria should be modified for infants...
November 11, 2017: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/29132771/-neonatal-herpes-epidemiology-clinical-manifestations-and-management-guidelines-for-clinical-practice-from-the-french-college-of-gynecologists-and-obstetricians-cngof
#9
L Renesme
OBJECTIVES: To describe the epidemiology of neonatal herpes and its risk factors, clinical and paraclinic manifestations, propose guidelines for a newborn at risk of neonatal herpes, describe treatment modalities, describe post-natal transmission and its prevention. METHODS: Bibliographic search from Medline, Cochrane Library databases and research of international clinical practice guidelines. RESULTS: Neonatal herpes is rare (about 20 cases per year in France) and mainly due to HSV 1 (level of evidence LE3)...
November 10, 2017: Gynecologie, Obstetrique, Fertilite & Senologie
https://www.readbyqxmd.com/read/29131150/neurologic-complications-after-allogeneic-hematopoietic-stem-cell-transplantation-risk-factors-and-impact
#10
M R Dowling, S Li, B R Dey, S L McAfee, H R Hock, T R Spitzer, Y-B Chen, K K Ballen
Neurologic complications (NCs) may be a significant source of morbidity and mortality after hematopoietic cell transplantation (HCT). We performed a retrospective study of 263 consecutive patients undergoing allogeneic HCT for hematological malignancies to determine the incidence, risk factors and clinical impact of NCs in the first 5 years after HCT. We determined the incidence of central nervous system (CNS) infection, intracranial hemorrhage, ischemic stroke, metabolic encephalopathy, posterior reversal encephalopathy syndrome, seizure and peripheral neuropathy...
November 13, 2017: Bone Marrow Transplantation
https://www.readbyqxmd.com/read/29128927/toll-like-receptors-participate-in-naegleria-fowleri-recognition
#11
Moisés Martínez-Castillo, Leopoldo Santos-Argumedo, José Manuel Galván-Moroyoqui, Jesús Serrano-Luna, Mineko Shibayama
Naegleria fowleri is a protozoan that invades the central nervous system and causes primary amoebic meningoencephalitis. It has been reported that N. fowleri induces an important inflammatory response during the infection. In the present study, we evaluated the roles of Toll-like receptors in the recognition of N. fowleri trophozoites by human mucoepithelial cells, analyzing the expression and production of innate immune response mediators. After amoebic interactions with NCI-H292 cells, the expression and production levels of IL-8, TNF-α, IL-1β, and human beta defensin-2 were evaluated by RT-PCR, ELISA, immunofluorescence, and dot blot assays, respectively...
November 11, 2017: Parasitology Research
https://www.readbyqxmd.com/read/29127615/fungal-and-parasitic-cns-infections
#12
Pratibha Singhi, Arushi Gahlot Saini
Central nervous system fungal infections can be broadly divided into those that infect a healthy host such as Cryptococcus, Coccidioides, Histoplasma, Blastomyces, Sporothrix spp., and those that cause opportunistic infections in an immunocompromised host such as Candida, Aspergillus, Zygomycetes, Trichosporon spp. The clinical manifestations of central nervous system fungal infections commonly seen in children in clinical practice include a chronic meningitis or meningoencephalitis syndrome, brain abscess, rhino-cerebral syndrome and rarely, a fungal ventriculitis...
November 11, 2017: Indian Journal of Pediatrics
https://www.readbyqxmd.com/read/29127595/neurological-manifestations-of-congenital-zika-virus-infection
#13
Tania Saad, Alessandra Augusta PennaeCosta, Fernanda Veiga de Góes, Marcela de Freitas, Julia Valeriano de Almeida, Lúcio José de Santa Ignêz, Ana Paula Amancio, Renata Joviano Alvim, Ludmilla Athayde Antunes Kramberger
INTRODUCTION: In 2015, it was observed a rise in the number of microcephalic newborns associated with a history of non-specific febrile sickness and rash during pregnancy in Brazil. Since then, microcephaly has emerged as a public health concern. A few months after, the causal relation between congenital microcephaly and the Zika virus was discovered. Zika virus, an arbovirus, is a new TORCH member that leads to congenital infection through vertical transmission and harms the developing brain, disrupting synaptogenesis, and causing other central nervous system lesions...
November 10, 2017: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/29125646/epidural-abscess-caused-by-schizophyllum-commune-a-rare-case-of-rhinogenic-cranial-complication-by-a-filamentous-basidiomycete
#14
Kazuya Tone, Ryuichi Fujisaki, Shigehiro Hagiwara, Takashi Tamura, Shinobu Ishigaki, Mohamed Mahdi Alshahni, Makoto Takehisa, Takehiro Watanabe, Takuya Yasui, Takuo Tokairin, Toshiyo Sagawa, Tetsuya Sakamoto, Ken Ito, Kazuyoshi Kuwano, Koichi Makimura
Central nervous system (CNS) infections due to filamentous basidiomycetes are extremely rare. We encountered a case of epidural abscess due to Schizophyllum commune that extended from sinusitis. A 53-year-old Japanese man presented at our hospital with a headache. Computed tomography (CT) of the cranium and sinuses showed ethmoid and sphenoid sinusitis with no intracranial abnormalities. The patient was diagnosed with acute sinusitis and underwent antibiotic treatment. However, the symptoms deteriorated, and the patient came to our hospital again with consciousness disturbance...
November 10, 2017: Mycoses
https://www.readbyqxmd.com/read/29123467/the-role-of-sdf-1-cxcr4-cxcr7-in-neuronal-regeneration-after-cerebral-ischemia
#15
REVIEW
Xi Cheng, Huibin Wang, Xiuchun Zhang, Shanshan Zhao, Zhike Zhou, Xiaopeng Mu, Chuansheng Zhao, Weiyu Teng
Stromal cell-derived factor-1 is a chemoattractant produced by bone marrow stromal cell lines. It is recognized as a critical factor in the immune and central nervous systems (CNSs) as well as exerting a role in cancer. SDF-1 activates two G protein-coupled receptors, CXCR4 and CXCR7; these are expressed in both developing and mature CNSs and participate in multiple physiological and pathological events, e.g., inflammatory response, neurogenesis, angiogenesis, hematopoiesis, cancer metastasis, and HIV infection...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/29122794/consensus-validation-of-the-posamino-potentially-serious-alcohol-medication-interactions-in-older-adults-criteria
#16
Alice E Holton, Paul J Gallagher, Cristín Ryan, Tom Fahey, Gráinne Cousins
OBJECTIVES: Older adults are particularly vulnerable to adverse effects from concurrent alcohol and medication use. However, there is limited evidence regarding the prevalence of these adverse outcomes among older adults, and there is a lack of consensus regarding what constitutes an alcohol-interactive medicine. The objective of this study was to develop an explicit list of potentially serious alcohol-medication interactions for use in older adults. DESIGN: Following a systematic review, review of drug compendia and clinical guidance documents, a two-round Delphi consensus method was conducted...
November 8, 2017: BMJ Open
https://www.readbyqxmd.com/read/29122670/infection-of-neuroblastoma-cells-by-rabies-virus-is-modulated-by-the-virus-titer
#17
Natalia Langenfeld Fuoco, Sandriana Dos Ramos Silva, Elaine Raniero Fernandes, Fernanda Guedes Luiz, Orlando Garcia Ribeiro, Iana Suly Santos Katz
Rabies is a lethal viral infection that can affect almost all mammals, including humans. To better understand the replication of Rabies lyssavirus, we investigated if the viral load in brains naturally infected with rabies influences viral internalization and viral growth kinetics in neuroblastoma cells, and if the viral load affects mortality in mice after intradermal infection. We noted that high initial viral loads in brains (group II) were unfavourable for increasing viral titers during serial passages in neuroblastoma cells when compared to low initial viral loads in brains (group I)...
November 6, 2017: Antiviral Research
https://www.readbyqxmd.com/read/29121235/management-of-an-outbreak-of-exophiala-dermatitidis-bloodstream-infections-at-an-outpatient-oncology-clinic
#18
Amber Marie Vasquez, D Zavasky, N A Chow, L Gade, E Zlatanic, S Elkind, A P Litvintseva, Peter G Pappas, J R Perfect, S G Revankar, S R Lockhart, T M Chiller, J Ackelsberg, S Vallabhaneni
Exophiala (Wangiella) dermatitidis is a dematiaceous fungus that can grow in yeast or mold forms and is typically found in decaying organic matter. It can cause central nervous system disease, particularly in immunocompromised patients, and has been implicated as a respiratory pathogen in cystic fibrosis patients [1,2]. It has also been identified as a colonizer in the gastrointestinal tract [3]. However, bloodstream infections with this organism are exceedingly rare.
November 7, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/29121071/from-nerves-to-brain-to-gastrointestinal-tract-a-time-based-study-of-parrot-bornavirus-2-pabv-2-pathogenesis-in-cockatiels-nymphicus-hollandicus
#19
Jeann Leal de Araujo, Raquel R Rech, J Jill Heatley, Jianhua Guo, Paula R Giaretta, Ian Tizard, Aline Rodrigues-Hoffmann
Parrot bornaviruses (PaBVs) are the causative agents of proventricular dilatation disease, however key aspects of its pathogenesis, such as route of infection, viral spread and distribution, and target cells remain unclear. Our study aimed to track the viral spread and lesion development at 5, 10, 20, 25, 35, 40, 60, 80, 95 and 114 dpi using histopathology, immunohistochemistry, and RT-PCR. After intramuscular inoculation of parrot bornavirus 2 (PaBV-2) in the pectoral muscle of cockatiels, this virus was first detected in macrophages and lymphocytes in the inoculation site and adjacent nerves, then reached the brachial plexus, centripetally spread to the thoracic segment of the spinal cord, and subsequently invaded the other spinal segments and brain...
2017: PloS One
https://www.readbyqxmd.com/read/29119088/neurological-manifestations-of-dengue-infection
#20
REVIEW
Guo-Hong Li, Zhi-Jie Ning, Yi-Ming Liu, Xiao-Hong Li
Dengue counts among the most commonly encountered arboviral diseases, representing the fastest spreading tropical illness in the world. It is prevalent in 128 countries, and each year >2.5 billion people are at risk of dengue virus infection worldwide. Neurological signs of dengue infection are increasingly reported. In this review, the main neurological complications of dengue virus infection, such as central nervous system (CNS), peripheral nervous system, and ophthalmic complications were discussed according to clinical features, treatment and possible pathogenesis...
2017: Frontiers in Cellular and Infection Microbiology
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