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https://www.readbyqxmd.com/read/28919626/addison-s-disease-a-diagnostic-dilemma
#1
S Afroz, S Bain
Adrenal insufficiency is a rare disease, but is life threatening when overlooked. Addison's disease may be an acquired form of adrenal insufficiency due to the destruction or dysfunction of the adrenal cortex. It affects both glucocorticoid and mineralocorticoid function. Main presenting symptoms of Addison's disease such as fatigue, anorexia, vomiting and convulsion often mimics central nervous system (CNS) infections. We describe a case of Addison's disease who was initially misdiagnosed as a case of meningo-encephalitis subsequently renal tubular acidosis and finally Addison's disease...
July 2017: Mymensingh Medical Journal: MMJ
https://www.readbyqxmd.com/read/28919347/invasive-mold-infections-of-the-central-nervous-system-in-patients-with-hematologic-cancer-or-stem-cell-transplantation-2000-2016-uncommon-with-improved-survival-but-still-deadly-often
#2
Minas P Economides, Leomar Y Ballester, Vinodh A Kumar, Ying Jiang, Jeffrey Tarrand, Victor Prieto, Harrys A Torres, Dimitrios P Kontoyiannis
BACKGROUND: Historically considered to have very poor outcome, there is paucity of recent data regarding invasive mold infections (IMIs) of the central nervous system (CNS) in patients with hematologic cancer (HC) or stem cell transplantation (SCT). METHODS: We reviewed the records of HC patients and/or SCT recipients who were diagnosed with CNS IMIs (EORTC/MSG criteria) at MD Anderson Cancer Center (1/1/2000-6/31/2016). Risk factors for survival at day (d) 42 post diagnosis were assessed...
September 14, 2017: Journal of Infection
https://www.readbyqxmd.com/read/28917708/type-2-diabetes-mellitus-balb-c-mice-are-more-susceptible-to-granulomatous-amoebic-encephalitis-immunohistochemical-study
#3
Maritza Omaña-Molina, Raquel Sanchez-Rocha, Dolores Hernandez-Martinez, Miriam Romero Grijalva, Citlaltepetl Salinas-Lara, Miriam Rodriguez-Sosa, Imelda Juarez-Avelar, Lizbeth Salazar-Villatoro, Arturo Gonzalez-Robles, Adolfo Rene Mendez-Cruz, Patricia Aley-Medina, Jesus Espinosa-Villanueva, Ismael Castelan-Ramirez, Jacob Lorenzo-Morales
Granulomatous amoebic encephalitis (GAE) is a chronic, difficult to resolve infection caused by amphizoic amoebae of the genus Acanthamoeba, which in most cases occurs in immunosuppressed persons or with chronic diseases such as diabetes. In this study, we describe the early events of A. culbertsoni infection of GAE in diabetic mice model. Diabetes was induced in male BALB/c mice, with a dose of streptozotocin (130 mg/kg). Healthy and diabetic mice were inoculated via intranasal with 1 × 10(6) trophozoites of A...
September 13, 2017: Experimental Parasitology
https://www.readbyqxmd.com/read/28913765/treatment-of-theiler-s-virus-induced-demyelinating-disease-with-teriflunomide
#4
Francesca Gilli, Libin Li, Darlene B Royce, Krista D DiSano, Andrew R Pachner
Teriflunomide is an oral therapy approved for the treatment of relapsing remitting multiple sclerosis (MS), showing both anti-inflammatory and antiviral properties. Currently, it is uncertain whether one or both of these properties may explain teriflunomide's beneficial effect in MS. Thus, to learn more about its mechanisms of action, we evaluated the effect of teriflunomide in the Theiler's encephalomyelitis virus-induced demyelinating disease (TMEV-IDD) model, which is both a viral infection and an excellent model of the progressive disability of MS...
September 14, 2017: Journal of Neurovirology
https://www.readbyqxmd.com/read/28913617/fingolimod-induces-neuronal-specific-gene-expression-with-potential-neuroprotective-outcomes-in-maturing-neuronal-progenitor-cells-exposed-to-hiv
#5
Rebeca Geffin, Ricardo Martinez, Alicia de Las Pozas, Biju Issac, Micheline McCarthy
Fingolimod (FTY720), a structural analogue of sphingosine, targets sphingosine-1-phosphate receptor signaling and is currently an immunomodulatory therapy for multiple sclerosis. Fingolimod accesses the central nervous system (CNS) where its active metabolite, fingolimod phosphate (FTY720-P), has pleotropic neuroprotective effects in an inflammatory microenvironment. To investigate potential neuronal-specific mechanisms of fingolimod neuroprotection, we cultured the human neuronal progenitor cell line, hNP1, in differentiation medium supplemented with HIV- or Mock-infected supernatants, with or without FTY720-P...
September 14, 2017: Journal of Neurovirology
https://www.readbyqxmd.com/read/28913566/adar-rna-editing-in-human-disease-more-to-it-than-meets-the-i
#6
REVIEW
Angela Gallo, Dragana Vukic, David Michalík, Mary A O'Connell, Liam P Keegan
We review the structures and functions of ADARs and their involvements in human diseases. ADAR1 is widely expressed, particularly in the myeloid component of the blood system, and plays a prominent role in promiscuous editing of long dsRNA. Missense mutations that change ADAR1 residues and reduce RNA editing activity cause Aicardi-Goutières Syndrome, a childhood encephalitis and interferonopathy that mimics viral infection and resembles an extreme form of Systemic Lupus Erythmatosus (SLE). In Adar1 mouse mutant models aberrant interferon expression is prevented by eliminating interferon activation signaling from cytoplasmic dsRNA sensors, indicating that unedited cytoplasmic dsRNA drives the immune induction...
September 14, 2017: Human Genetics
https://www.readbyqxmd.com/read/28913358/central-modulation-of-neuroinflammation-by-neuropeptides-and-energy-sensing-hormones-during-obesity
#7
REVIEW
Roger Maldonado-Ruiz, Lizeth Fuentes-Mera, Alberto Camacho
Central nervous system (CNS) senses energy homeostasis by integrating both peripheral and autonomic signals and responding to them by neurotransmitters and neuropeptides release. Although it is previously considered an immunologically privileged organ, we now know that this is not so. Cells belonging to the immune system, such as B and T lymphocytes, can be recruited into the CNS to face damage or infection, in addition to possessing resident immunological cells, called microglia. In this way, positive energy balance during obesity promotes an inflammatory state in the CNS...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28904584/central-nervous-system-inflammatory-myofibroblastic-tumor-masquerading-as-chronic-suppurative-otitis-media
#8
Namit Singhal, Vinay Agarwal, Anu Chawla, Rajiv Tangri
Inflammatory myofibroblastic tumor (IMT) is a rare tumor in the central nervous system (CNS), mostly being extracranial. Approximately 100 sporadic cases have been reported in the literature. The rarity of the tumor, its various histopathological characteristics, and its variable aggressive course render it difficult to diagnose and treat. IMT is generally a histological diagnosis which is rarely suspected preoperatively. It mimics other intracranial tumors such as giant cell tumor, hemangiopericytoma, anaplastic meningioma, plasmacytoma, and lymphoma...
April 2017: Journal of Pediatric Neurosciences
https://www.readbyqxmd.com/read/28903872/prevalence-of-subclinical-mastitis-and-associated-risk-factors-at-cow-and-herd-level-in-dairy-farms-in-north-west-ethiopia
#9
S A Mekonnen, G Koop, S T Melkie, C D Getahun, H Hogeveen, T J G M Lam
Knowledge of mastitis pathogens and their predominance as well as understanding of risk factors are prerequisites to improve udder health in a herd, region or country. In Ethiopia, such information is scarce, despite the fact that mastitis is an important cattle disease in the country. A cross-sectional study that describes prevalence and causative agents of subclinical mastitis (SCM) as well as risk factors at cow and herd level was conducted on 167 dairy farms in North-West Ethiopia. On average, 33% of the quarters and 62% of the cows were California Mastitis Test (CMT) positive, but the within herd quarter level prevalence ranged between 0 and 100%...
September 15, 2017: Preventive Veterinary Medicine
https://www.readbyqxmd.com/read/28895099/neurological-and-multiple-organ-involvement-due-to-paracoccidioides-brasiliensis-and-hiv-co-infection-diagnosed-at-autopsy
#10
Sergio Monteiro de Almeida, Thiago H Roza, Gabriel L O Salvador, João C B França, Luine Rosele Renaud Vidal, Meri Bordignon Nogueira, Lubomira Veronica Oliva, Luis Fernando Bleggi Torres, Lucia Helena de Noronha
Paracoccidioidomycosis (PCM), caused by Paracoccidioides brasiliensis, is the most prevalent systemic mycosis among immunocompetent patients in Latin America; it is rare in immunocompromised patients. The estimated frequency of central nervous system (CNS) involvement in the HIV/PCM population was 2.5%. We report a case of HIV/P. brasiliensis co-infection, with neurological (NPCM) and multiple organ involvement, indicating a diagnosis of AIDS. PCM diagnosis was established during the autopsy. This is the first described case of HIV/P...
September 11, 2017: Journal of Neurovirology
https://www.readbyqxmd.com/read/28895059/central-nervous-system-penetrating-antiretrovirals-impair-energetic-reserve-in-striatal-nerve-terminals
#11
Kelly L Stauch, Katy Emanuel, Benjamin G Lamberty, Brenda Morsey, Howard S Fox
The use of antiretroviral (ARV) drugs with central nervous system (CNS) penetration effectiveness (CPE) may be useful in the treatment of HIV-associated neurocognitive disorder (HAND) as well as targeting a CNS reservoir in strategies to achieve a functional cure for HIV. However, increased cognitive deficits are linked to at least one of these drugs (efavirenz). As mitochondrial dysfunction has been found with a number of ARVs, and as such can affect neuronal function, the objective of this study was to assess the effects of ARV with high CPE for toxicological profiles on presynaptic nerve terminal energy metabolism...
September 11, 2017: Journal of Neurovirology
https://www.readbyqxmd.com/read/28893794/effects-of-hiv-1-tat-and-methamphetamine-on-blood-brain-barrier-integrity-and-function-in-vitro
#12
Sulay Patel, Crystal R Leibrand, Preetha Palasuberniam, Pierre-Olivier Couraud, Babette Weksler, Fay M Jahr, Joseph L McClay, Kurt F Hauser, MaryPeace McRae
Human immunodeficiency (HIV) infection results in neurocognitive deficits in about one half of infected individuals. Despite systemic effectiveness, restricted antiretroviral penetration across the blood-brain barrier (BBB) is a major limitation in fighting CNS-localized infection. Drug abuse exacerbates HIV-induced cognitive and pathologic CNS changes. This study's purpose was to investigate the effects of the HIV-1 protein, Tat, and methamphetamine on factors affecting drug penetration across an in vitro BBB model...
September 11, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28892964/dengue-haemorrhagic-encephalitis-rare-case-report-with-review-of-literature
#13
Aditya Singh Kutiyal, Chetanya Malik, Gitika Hyanki
Dengue is an endemic arboviral infection prevalent especially in tropical countries including Southern and Southeast Asia. Central Nervous System (CNS) involvement in dengue infection is uncommon. Haemorrhagic encephalitis is a rare presentation in dengue. This is a case of a 58-year-old male who presented with fever, petechial rash and altered sensorium. Dengue serology IgM was reactive and MRI brain was suggestive of haemorrhagic encephalitis. Patient was managed in Intensive Care Unit (ICU) but eventually succumbed to his illness...
July 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28891812/herpes-simplex-virus-1-evasion-of-cd8-t-cell-accumulation-contributes-to-viral-encephalitis
#14
Naoto Koyanagi, Takahiko Imai, Keiko Shindo, Ayuko Sato, Wataru Fujii, Takeshi Ichinohe, Naoki Takemura, Shigeru Kakuta, Satoshi Uematsu, Hiroshi Kiyono, Yuhei Maruzuru, Jun Arii, Akihisa Kato, Yasushi Kawaguchi
Herpes simplex virus-1 (HSV-1) is the most common cause of sporadic viral encephalitis, which can be lethal or result in severe neurological defects even with antiviral therapy. While HSV-1 causes encephalitis in spite of HSV-1-specific humoral and cellular immunity, the mechanism by which HSV-1 evades the immune system in the central nervous system (CNS) remains unknown. Here we describe a strategy by which HSV-1 avoids immune targeting in the CNS. The HSV-1 UL13 kinase promotes evasion of HSV-1-specific CD8+ T cell accumulation in infection sites by downregulating expression of the CD8+ T cell attractant chemokine CXCL9 in the CNS of infected mice, leading to increased HSV-1 mortality due to encephalitis...
September 11, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28889017/mycoplasmas-brain-invaders
#15
REVIEW
Rubén S Rosales, Roberto Puleio, Guido R Loria, Salvatore Catania, Robin A J Nicholas
Mycoplasmas of humans and animals are usually associated with respiratory, autoimmune, genital and joint diseases. Human mycoplasmas have also been known to affect the brain. Severe central nervous system (CNS) diseases, such as encephalitis, have been linked to Mycoplasma pneumoniae and ureaplasma infections. Less well known is the sheep and goat pathogen, Mycoplasma agalactiae, which has been found in large quantities in the brain where it may be responsible for non-purulent encephalitis as well as ataxia in young animals...
September 5, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/28888971/fungal-infection-in-neural-tissue-of-patients-with-amyotrophic-lateral-sclerosis
#16
Ruth Alonso, Diana Pisa, Ana M Fernández-Fernández, Alberto Rábano, Luis Carrasco
Amyotrophic lateral sclerosis (ALS) is a devastating neurodegenerative disease and the main cause of motor neuron pathology. The etiology of the disease remains unknown, and no effective therapy exists to halt the disease or improve the quality of life. Here, we provide compelling evidence for the existence of fungal infection in ALS. Immunohistochemistry analysis using a battery of antifungal antibodies revealed fungal structures such as yeast and hyphae in the motor cortex, the medulla and the spinal cord, in eleven patients with ALS...
September 6, 2017: Neurobiology of Disease
https://www.readbyqxmd.com/read/28884727/-disturbance-of-oligodendrocyte-differentiation-in-schizophrenia-in-relation-to-main-hypothesis-of-the-disease
#17
N S Kolomeets
Increasing evidence coming from neuroimaging, molecular genetic and post-mortem studies have implicated oligodendrocyte abnormalities and compromised myelin integrity in schizophrenia. Activity-dependent myelination in adult brain is considered to be an important mechanism of neural circuit's plasticity due to the presence of a large population of oligodendrocyte progenitor cells (OPC) in the adult CNS. Growing evidence for impairment of oligodendrocyte differentiation has been reported in the brain of schizophrenia subjects...
2017: Zhurnal Nevrologii i Psikhiatrii Imeni S.S. Korsakova
https://www.readbyqxmd.com/read/28881516/-effectiveness-and-safety-of-rituximab-for-children-with-autoimmune-diseases-of-the-nervous-system
#18
Z Fu, X H Bao, Y Wu, J Zhou, Y H Zhang, Y Zhang, T Y Ji, Y Chen
Objective: To assess the effectiveness and safety of rituximab in Chinese children with autoimmune diseases of the nervous system. Method: An ambispective cohort study enrolled patients with refractory and(or) relapse autoimmune diseases of nervous system from June 2010 to June 2016 in Peking University First Hospital.These patients failed to respond to steroids and(or)intravenous immunoglobulin (IVIG) were treated with rituximab and seen for follow-up visits once every 3 months.The effectiveness was assessed by modified Rankin scale (mRs) and the annualized relapse rate...
September 2, 2017: Zhonghua Er Ke za Zhi. Chinese Journal of Pediatrics
https://www.readbyqxmd.com/read/28880938/prpc-expression-and-prion-seeding-activity-in-the-alimentary-tract-and-lymphoid-tissue-of-deer
#19
Kristen A Davenport, Clare E Hoover, Jifeng Bian, Glenn C Telling, Candace K Mathiason, Edward A Hoover
The agent responsible for prion diseases is a misfolded form of a normal protein (PrPC). The prion hypothesis stipulates that PrPC must be present for the disease to manifest. Cervid populations across the world are infected with chronic wasting disease, a horizontally-transmissible prion disease that is likely spread via oral exposure to infectious prions (PrPCWD). Though PrPCWD has been identified in many tissues, there has been little effort to characterize the overall PrPC expression in cervids and its relationship to PrPCWD accumulation...
2017: PloS One
https://www.readbyqxmd.com/read/28878079/minocycline-has-anti-inflammatory-effects-and-reduces-cytotoxicity-in-an-ex-vivo-spinal-cord-slice-culture-model-of-west-nile-virus-infection
#20
Eamon D Quick, Scott Seitz, Penny Clarke, Kenneth L Tyler
West Nile virus (WNV) is a neurotropic flavivirus that can cause significant neurological disease. Mouse models of WNV infection demonstrate that a pro-inflammatory environment is induced within the central nervous system (CNS) after WNV infection leading to entry of activated peripheral immune cells. We utilized ex vivo spinal cord slice cultures (SCSC) to demonstrate that anti-inflammatory mechanisms may also play a role in WNV-induced pathology and/or recovery. Microglia are a type of macrophage that function as resident CNS immune cells...
September 6, 2017: Journal of Virology
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