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https://www.readbyqxmd.com/read/29149633/neonatal-and-long-term-ophthalmological-findings-in-infants-with-symptomatic-and-asymptomatic-congenital-cytomegalovirus-infection
#1
Maria Grazia Capretti, Concetta Marsico, Simonetta Guidelli Guidi, Antonio Ciardella, Giuliana Simonazzi, Silvia Galletti, Liliana Gabrielli, Tiziana Lazzarotto, Giacomo Faldella
BACKGROUND: Congenital cytomegalovirus (cCMV) infection is responsible of a high burden of neurosensory impairment in children. OBJECTIVES: To report incidence and consequences of ophthalmological abnormalities in infants with cCMV infection and better define their long-term ophthalmological management. STUDY DESIGN: Infants with cCMV infection were enrolled in a 6-year follow-up. Infants were classified as symptomatic or asymptomatic based on complete clinical, laboratory and instrumental evaluations...
November 7, 2017: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/29149532/exploitation-of-micrornas-by-japanese-encephalitis-virus-in-human-microglial-cells
#2
Meghana Rastogi, Neha Srivastava, Sunit K Singh
JEV infection in CNS leads to the JE neuroinflammation. Children and old age individual have been reported to be more prone to JEV infection. MicroRNAs are endogenous, small non-coding RNAs, which regulate the gene expression. These are ∼22 nucleotide long, conserved RNA sequence that binds at the 3'UTR of a target mRNA and regulate the post-transcriptional gene expression. The role of microRNAs has been reported in several diseases like cancer, viral infection, neuro-degeneration, diabetes etc. In the present study, the human microglial cells were infected with JEV (JaOAr strain)...
November 17, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/29148267/detection-of-teschovirus-type-13-from-two-swine-herds-exhibiting-nervous-clinical-signs-in-growing-pigs
#3
J Carnero, C Prieto, L Polledo, F J Martínez-Lobo
Recently, the number of clinical reports of growing pigs showing neurological signs possibly related to viral infections has increased. The objective of this report was to describe two outbreaks of an atypical condition observed in 6- to 7-week-old pigs with a morbidity of 20% and a fatality rate of 60% in two unrelated farms of the same company. During the acute phase of the disease, fever, sudden death, neurological signs, ear necrosis and occasional corneal opacity were observed. Histopathological examination revealed interstitial pneumonia, lymphoid depletion and lymphocytic vasculitis in different organs and mild polioencephalomyelitis suggesting a potential viral infection...
November 16, 2017: Transboundary and Emerging Diseases
https://www.readbyqxmd.com/read/29143062/-intracranial-cystic-lesions
#4
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/29142080/human-parechovirus-an-increasingly-recognized-cause-of-sepsis-like-illness-in-young-infants
#5
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/29141790/cerebral-toxoplasmosis-in-an-ms-patient-receiving-fingolimod
#6
Alejandro Enriquez-Marulanda, Jaime Valderrama-Chaparro, Laura Parrado, Juan Diego Vélez, Ana Maria Granados, Jorge Luis Orozco, Jairo Quiñones
Multiple Sclerosis (MS) is an autoimmune disease in which lymphocytes target putative myelin antigens in the CNS, causing inflammation and neurodegeneration. Fingolimod (FTY720) is an immunosuppressive drug used as a second line therapy for relapsing forms of MS due to its safety profile and good response to treatment. Despite its safety, there are still concerns about the possibility of Fingolimod being linked to the development of opportunistic infections like disseminated varicella zoster infections and herpes simplex encephalitis...
November 2017: Multiple Sclerosis and related Disorders
https://www.readbyqxmd.com/read/29134942/intramammary-infusion-of-a-live-culture-of-lactococcus-lactis-in-ewes-to-treat-staphylococcal-mastitis
#7
Sebastian Alessandro Mignacca, Simone Dore, Liliana Spuria, Pietro Zanghì, Benedetta Amato, Ilaria Duprè, Federica Armas, Elena Biasibetti, Cristina Camperio, Stefano A Lollai, Maria Teresa Capucchio, Eugenia Agnese Cannas, Vincenzo Di Marco Lo Presti, Cinzia Marianelli
PURPOSE: Alternatives to antibiotic therapy for mastitis in ruminants are needed. We present an evaluation, in two trials, of the efficacy of an intramammary infusion of a live culture of Lactococcus lactis for the treatment of subclinical and clinical mastitis in ewes. METHODOLOGY: In total, 67 animals were enrolled: 19 lactating ewes (study 1), including healthy (N=6) and coagulase-negative staphylococci (CNS)-infected ewes (N=13); and 48 lactating ewes (study 2) with either CNS mastitis (N=32), or Staphylococcus aureus mastitis (N=16), for a total of 123 mammary glands...
November 14, 2017: Journal of Medical Microbiology
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
#8
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
#9
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/29127615/fungal-and-parasitic-cns-infections
#10
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/29126299/cns-penetration-of-art-in-hiv-infected-children
#11
Malon Van den Hof, Charlotte Blokhuis, Sophie Cohen, Henriette J Scherpbier, Ferdinand W N M Wit, M C M Pistorius, Neeltje A Kootstra, Charlotte E Teunissen, Ron A A Mathot, Dasja Pajkrt
Background: Paediatric data on CNS penetration of antiretroviral drugs are scarce. Objectives: To evaluate CNS penetration of antiretroviral drugs in HIV-infected children and explore associations with neurocognitive function. Patients and methods: Antiretroviral drug levels were measured in paired CSF and blood samples of clinically stable HIV-infected children between 8 and 18 years old on long-term combined ART. Plasma drug concentrations were corrected for protein binding...
November 8, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/29125646/epidural-abscess-caused-by-schizophyllum-commune-a-rare-case-of-rhinogenic-cranial-complication-by-a-filamentous-basidiomycete
#12
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/29121071/from-nerves-to-brain-to-gastrointestinal-tract-a-time-based-study-of-parrot-bornavirus-2-pabv-2-pathogenesis-in-cockatiels-nymphicus-hollandicus
#13
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/29120577/epstein-barr-virus-infection-in-multiple-sclerosis-patients
#14
Awatef M Awwad, Nesrine F Hanafi, Ghada A Achmawi, Amira M Naguib
Multiple sclerosis (MS) is the most common inflammatory autoimmune CNS disease, with unknown etiology. We aimed to determine the coexistence of MS with antibodies to Epstein-Barr virus and its gene sequences (EBNA1 and BHRF1). The study included 60 MS patients and 60 control subjects. Serum samples were processed by ELISA for detection of EBV antibodies, and latent EBV genes were determined by Real Time PCR in blood samples. While 18 (30%) MS cases had anti- EBV IgM antibodies, all controls were free. For IgG, no difference was noted (cases 96...
January 2017: Egyptian Journal of Immunology
https://www.readbyqxmd.com/read/29119088/neurological-manifestations-of-dengue-infection
#15
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
https://www.readbyqxmd.com/read/29117626/unravelling-the-roles-of-innate-lymphoid-cells-in-cerebral-malaria-pathogenesis
#16
J Palomo, Vfj Quesniaux, D Togbe, F Reverchon, B Ryffel
Cerebral malaria (CM) is due to Plasmodium parasite infection leading to inflammatory immune responses in the central nervous system (CNS), accompanied by lung inflammation and anemia. Here, we focus on the role of the innate immune response in experimental cerebral malaria (ECM) caused by blood-stage murine Plasmodium berghei ANKA-infection. While T cells are important for ECM pathogenesis, the role of innate lymphoid cells (ILC) is only emerging. The role of ILCs and non-lymphoid cells such as neutrophils and platelets contributing to the host immune response leading to ECM and human cerebral malaria (HCM) is reviewed...
November 8, 2017: Parasite Immunology
https://www.readbyqxmd.com/read/29116307/cryptococcoma-mimicking-a-brain-tumor-in-an-immunocompetent-patient-case-report-of-an-extremely-rare-presentation
#17
Aline Lariessy Campos Paiva, Guilherme Brasileiro de Aguiar, Renan Maximilian Lovato, Arthus Vilar Deolindo Zanetti, Alexandros Theodoros Panagopoulos, José Carlos Esteves Veiga
CONTEXT: Central nervous system (CNS) infectious diseases have high prevalence in developing countries and their proper diagnosis and treatment are very important for public health planning. Cryptococcus neoformans is a fungus that may cause several CNS manifestations, especially in immunocompromised patients. Cryptococcal meningitis is the most common type of involvement. Mass-effect lesions are uncommon: they are described as cryptococcomas and their prevalence is even lower among immunocompetent patients...
November 6, 2017: São Paulo Medical Journal, Revista Paulista de Medicina
https://www.readbyqxmd.com/read/29113016/cryptococcal-dissemination-to-the-central-nervous-system-requires-the-vacuolar-calcium-transporter-pmc1
#18
Eamim D Squizani, Natália K Oliveira, Júlia C V Reuwsaat, Bárbara M Marques, William Lopes, Alexandra L Gerber, Ana Tereza R de Vasconcelos, Sophie Lev, Julianne T Djordjevic, Augusto Schrank, Marilene H Vainstein, Charley C Staats, Lívia Kmetzsch
Cryptococcus neoformans is a basidiomycetous yeast and the cause of cryptococcosis in immunocompromised individuals. The most severe form of the disease is meningoencephalitis, which is one of the leading cause of death in HIV/AIDS patients. In order to access the central nervous system (CNS), C. neoformans relies on the activity of certain virulence factors such as urease, which allows transmigration through the blood-brain barrier (BBB). In the present study, we demonstrate that the calcium transporter Pmc1 enables C...
November 7, 2017: Cellular Microbiology
https://www.readbyqxmd.com/read/29112532/speech-in-noise-perception-as-a-marker-of-cognitive-impairment-in-hiv-infection
#19
Yi Zhan, Abigail M Fellows, Tangkai Qi, Odile H Clavier, Sigfrid D Soli, Xiudong Shi, Jiang Gui, Yuxin Shi, Jay C Buckey
OBJECTIVES: Human immunodeficiency virus positive (HIV+) individuals report hearing difficulties, but standard audiological tests show no, or small, changes in peripheral hearing ability. The hearing complaints may reflect central nervous system (CNS) auditory processing deficits, rather than middle or inner ear problems, and may result from CNS damage due to HIV infection or treatment. If central auditory task performance and cognitive deficits in HIV+ individuals are shown to be related, then central auditory tests might serve as a "window" into CNS function in these patients...
November 4, 2017: Ear and Hearing
https://www.readbyqxmd.com/read/29111178/dose-dependent-neurocognitive-deficits-following-postnatal-day-10-hiv-1-viral-protein-exposure-relationship-to-hippocampal-anatomy-parameters
#20
Sylvia Fitting, Kristen A McLaurin, Rosemarie M Booze, Charles F Mactutus
Despite the availability of antiretroviral prophylactic treatment, pediatric human immunodeficiency virus type 1 (HIV-1) continues to be a significant risk factor in the post-cART era. The time of infection (i.e., during pregnancy, delivery or breastfeeding) may play a role in the development of neurocognitive deficits in pediatric HIV-1. HIV-1 viral protein exposure on postnatal day (P)1, preceding the postnatal brain growth spurt in rats, had deleterious effects on neurocognitive development and anatomical parameters of the hippocampus (Fitting et al...
October 27, 2017: International Journal of Developmental Neuroscience
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