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https://www.readbyqxmd.com/read/29229308/lymphocyte-dominant-encephalitis-and-meningitis-in-simian-immunodeficiency-virus-infected-macaques-receiving-antiretroviral-therapy
#1
Lisa M Mangus, Sarah E Beck, Suzanne E Queen, Samuel A Brill, Erin N Shirk, Kelly A Metcalf Pate, Dillon C Muth, Robert J Adams, Lucio Gama, Janice E Clements, Joseph L Mankowski
A retrospective neuropathologic review of 30 SIV-infected pigtailed macaques receiving combination antiretroviral therapy (cART) was conducted. Seventeen animals with lymphocyte-dominant inflammation in the brain and/or meninges that clearly was morphologically distinct from prototypic SIV encephalitis and human immunodeficiency virus encephalitis were identified. Central nervous system (CNS) infiltrates in cART-treated macaques primarily comprised CD20+ B cells and CD3+ T cells with fewer CD68+ macrophages...
December 5, 2017: American Journal of Pathology
https://www.readbyqxmd.com/read/29226104/hepatitis-e-a-literature-review
#2
REVIEW
Juliana Ayres de Alencar Arrais Guerra, Katia Cristina Kampa, Daphne Gonçalves Benatti Morsoletto, Alcindo Pissaia Junior, Cláudia Alexandra Pontes Ivantes
Hepatitis E is the fifth known form of human viral hepatitis. Although not very common in our clinical practice, the incidence in Western countries is increasing. Infection with the hepatitis E virus (HEV) may be related to acute illness, liver failure, chronic hepatitis and cirrhosis. HEV itself is an RNA virus, with eight described genotypes (HEV 1-8), four of which more commonly affect humans and have, thus, been better studied. Besides liver manifestations, genotype 3 is also related to extra-hepatic manifestations, such as neurological, renal and rheumatological...
December 28, 2017: Journal of Clinical and Translational Hepatology
https://www.readbyqxmd.com/read/29225977/double-morphology-tertiary-syphilis-and-acquired-immunodeficiency-syndrome-a-rare-association
#3
R M Ngwanya, B Kakande, N P Khumalo
Background: Human immunodeficiency virus (HIV) and Treponema pallidum coinfection is relatively common and accounts for about 25% of primary and secondary syphilis. Tertiary syphilis in HIV-uninfected and HIV-infected patients is vanishingly rare. This is most likely due to early treatment of cases of primary and secondary syphilis. There is rapid progression to tertiary syphilis in HIV-infected patients. Case Presentation: A 49-year-old woman diagnosed with HIV Type 1 infection and cluster of differentiation 4 (CD4) count of 482 presented with a four-week history of multiple crusted plaques, nodules, and ulcers on her face, arms, and abdomen...
2017: Case Reports in Dermatological Medicine
https://www.readbyqxmd.com/read/29221753/pura-the-gene-encoding-pur-alpha-member-of-an-ancient-nucleic-acid-binding-protein-family-with-mammalian-neurological-functions
#4
REVIEW
Dianne C Daniel, Edward M Johnson
The PURA gene encodes Pur-alpha, a 322 amino acid protein with repeated nucleic acid binding domains that are highly conserved from bacteria through humans. PUR genes with a single copy of this domain have been detected so far in spirochetes and bacteroides. Lower eukaryotes possess one copy of the PUR gene, whereas chordates possess 1-4 PUR family members. Human PUR genes encode Pur-alpha (Pura), Pur-beta (Purb) and two forms of Pur-gamma (Purg). Pur-alpha is a protein that binds specific DNA and RNA sequence elements...
December 5, 2017: Gene
https://www.readbyqxmd.com/read/29218468/prediction-of-unfavorable-outcomes-in-cryptococcal-meningitis-results-of-the-multicenter-infectious-diseases-international-research-initiative-id-iri-cryptococcal-meningitis-study
#5
I N Hakyemez, H Erdem, G Beraud, M Lurdes, A Silva-Pinto, C Alexandru, B Bishop, F Mangani, X Argemi, M Poinot, R Hasbun, M Akcaer, S Alp, T Demirdal, K Angamuthu, F Amer, E Ragab, G A Shehata, D Ozturk-Engin, N Ozgunes, L Larsen, S Zimmerli, O R Sipahi, E Tukenmez Tigen, G Celebi, N Oztoprak, A C Yardimci, Y Cag
Cryptococcal meningitis (CM) is mostly seen in immunocompromised patients, particularly human immunodeficiency virus (HIV)-positive patients, but CM may also occur in apparently immunocompetent individuals. Outcome analyses have been performed in such patients but, due to the high prevalence of HIV infection worldwide, CM patients today may be admitted to hospitals with unknown HIV status, particularly in underdeveloped countries. The objective of this multicenter study was to analyze all types of CM cases in an aggregate cohort to disclose unfavorable outcomes...
December 8, 2017: European Journal of Clinical Microbiology & Infectious Diseases
https://www.readbyqxmd.com/read/29210076/in-vitro-effect-of-antiretroviral-drugs-on-cultured-primary-astrocytes-analysis-of-neurotoxicity-and-matrix-metalloproteinase-inhibition
#6
Tiziana Latronico, Ilaria Pati, Rossana Ciavarella, Anna Fasano, Fabio Mengoni, Miriam Lichtner, Vincenzo Vullo, Claudio Maria Mastroianni, Grazia Maria Liuzzi
There is little information available on the possible toxic effects that antiretroviral (ARV) drugs used for the treatment of human immunodeficiency virus (HIV)-infected subjects, may have on the central nervous system (CNS) resident cells. Moreover, it is unclear whether the efficacy of the ARV drugs may also be due to their ability to exert extravirological effects on factors responsible for the development of HIV brain injury, e.g. matrix metalloproteinases (MMPs). This study investigates the toxicity of three different ARV drugs and on their ability to modulate levels and expression of gelatinases A (MMP-2) and B (MMP-9) in astrocytes...
December 6, 2017: Journal of Neurochemistry
https://www.readbyqxmd.com/read/29197841/haemorrhagic-conversion-of-infectious-myelitis-in-an-immunocompromised-patient
#7
Michael Stephen Pohlen, Jonathan Sunwei Lin, Kevin Yuqi Wang, Mohammad Ghasemi-Rad, Christie M Lincoln
A 28-year-old man recently diagnosed with HIV (CD4 19 cells/mm3, viral load 3.6 million copies/mL, not on highly active antiretroviral therapy on initial diagnosis at outside hospital), disseminated histoplasmosis, shingles and syphilis presented with paraplegia developing over 3 days. Spine MRI demonstrated a longitudinally extensive cord lesion extending from C3 to the tip of the conus. Brain MRI was consistent with meningoencephalitis. Cerebrospinal fluid findings were notable for positive varicella zoster virus (VZV) and cytomegalovirus (CMV) PCRs as well as a Venereal Disease Research Laboratory titre of 1:2...
December 2, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/29197154/risk-factors-for-serious-outcomes-associated-with-influenza-illness-in-high-versus-low-and-middle-income-countries-systematic-literature-review-and-meta-analysis
#8
Brenda L Coleman, Shaza A Fadel, Tiffany Fitzpatrick, Sera-Melisa Thomas
AIM: To determine factors associated with a serious outcome (hospital admission or severe outcome: critical care or death) and associated with illness caused by laboratory-confirmed influenza, with a specific interest in low- and middle-income countries (LMIC). METHOD: Databases were searched on 11 March 2016 for reports of influenza and factors associated with mortality or morbidity in humans, with no language restrictions. Pooled risks were estimated using random-effects models...
December 2, 2017: Influenza and Other Respiratory Viruses
https://www.readbyqxmd.com/read/29196315/phosphorylated-ccaat-enhancer-binding-protein-%C3%AE-contributes-to-rat-hiv-related-neuropathic-pain-in-vitro-and-in-vivo-studies
#9
Hyun Yi, Shue Liu, Yuta Kashiwagi, Daigo Ikegami, Wan Huang, Hirotsugu Kanda, Takafumi Iida, Ching-Hang Liu, Keiya Takahashi, David A Lubarsky, Shuanglin Hao
Chronic pain is increasingly recognized as an important comorbidity of HIV-infected patients, however, the exact molecular mechanisms of HIV-related pain are still elusive. CCAAT/enhancer binding proteins (C/EBPs) are expressed in various tissues, including the central nervous system. C/EBPβ, one of C/EBPs is involved in the progression of HIV/AIDS, but the exact role of C/EBPβ and its upstream factors are not clear in HIV pain state. Here, we used a neuropathic pain model of perineural HIV envelope glycoprotein gp120 application onto the rat sciatic nerve to test the role of phosphorylated C/EBPβ (pC/EBPβ) and its upstream pathway in the spinal cord dorsal horn (SCDH)...
December 1, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/29189606/moyamoya-syndrome-in-a-child-with-hiv-1-infection
#10
Ankur Kumar Jindal, Sagar Bhattad, Deepti Suri, Manphool Singhal, Aman Gupta, Paramjeet Singh
Neurological manifestations of HIV infection are not uncommon. However, stroke secondary to Moyamoya syndrome has rarely been described in children with HIV infection. We report a 10 years old boy with perinatally acquired HIV-1-infection, who presented with recurrent strokes while on antiretroviral therapy.
November 15, 2017: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/29189306/does-a-rehabilitation-program-of-aerobic-and-progressive-resisted-exercises-influence-hiv-induced-distal-neuropathic-pain
#11
Sonill S Maharaj, Abdulsalm M Yakasai
OBJECTIVE: Distal symmetrical polyneuropathy (DSPN) is a common neurological sequela following HIV which leads to neuropathic pain and functional limitations. Rehabilitation programs with exercises are used to augment pharmacological therapy to relieve pain but appropriate and effective exercises are unknown. This study explored the safety and effect of moderate intensity aerobic exercises (AE) and progressive resisted exercises (PRE) for HIV-induced DSPN neuropathic pain. DESIGN: A randomized pre-test, post-test of 12 weeks of AE or PRE compared to a control...
November 20, 2017: American Journal of Physical Medicine & Rehabilitation
https://www.readbyqxmd.com/read/29184338/rapid-clinical-score-for-the-diagnosis-of-tuberculous-meningitis-a-retrospective-cohort-study
#12
Raluca Jipa, Ioana D Olaru, Eliza Manea, Simona Merisor, Adriana Hristea
Objective: The aim of our study was to retrospectively validate a previously described rapid clinical score (RCS) in distinguishing tuberculous meningitis (TBM) from viral meningitis (VM) in people who are at increased risk of tuberculosis, as well as from cryptococcal meningitis (CM) in HIV-infected patients. Methods: We performed a retrospective study of patients admitted with a diagnosis of aseptic meningitis between January 2012 and December 2015, to a referral hospital for infectious diseases...
October 2017: Annals of Indian Academy of Neurology
https://www.readbyqxmd.com/read/29176843/hiv-1-and-cocaine-disrupt-dopamine-reuptake-and-medium-spiny-neurons-in-female-rat-striatum
#13
Mehrak Javadi-Paydar, Robert F Roscoe, Adam R Denton, Charles F Mactutus, Rosemarie M Booze
HIV-1 and addictive drugs, such as cocaine (COC), may act in combination to produce serious neurological complications. In the present experiments, striatal brain slices from HIV-1 transgenic (Tg) and F344 control female rats were studied. First, we examined dopamine (DA) reuptake in control, HIV-1, COC-treated (5µM) and HIV-1+COC-treated, striatal slices using fast scan cyclic voltammetry. COC-treated striatal slices from F344 control animals significantly increased DA reuptake time (T80), relative to untreated control slices...
2017: PloS One
https://www.readbyqxmd.com/read/29164407/neurological-complications-of-hiv-infection
#14
REVIEW
Shelli Farhadian, Payal Patel, Serena Spudich
PURPOSE OF REVIEW: HIV-associated neurocognitive disorders (HAND) are common in patients with HIV disease, even during suppressive combination antiretroviral therapy (cART). This review article addresses the pathogenesis of HAND, focusing on important findings from the last 5 years. RECENT FINDINGS: While HIV-associated dementia is now rare in settings with cART availability, mild forms of HAND are increasing in prevalence. Biomarkers of cellular injury, such as neurofilament light chain and neopterin, can detect early stages of neuroinflammation associated with HIV infection and are increased even in asymptomatic individuals with chronic HIV infection...
November 21, 2017: Current Infectious Disease Reports
https://www.readbyqxmd.com/read/29163538/efficacy-and-safety-of-a-multistrain-probiotic-formulation-depends-from-manufacturing
#15
Vito Trinchieri, Luca Laghi, Beatrice Vitali, Carola Parolin, Ilaria Giusti, Daniela Capobianco, Paola Mastromarino, Claudio De Simone
Background: Variability in probiotics manufacturing may affect their properties, with potential implications for their efficacy and safety. This is of particular concern with probiotic products destined for use in patients with serious medical conditions, including human immunodeficiency virus (HIV) infection. The purpose of the study was to carry out a series of experiments comparing the properties of the US-made probiotic formulation originally commercialized under the brand name VSL#3®, with those of the Italian-made formulation now commercialized under the same name...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/29162707/cd4-t-cells-orchestrate-lethal-immune-pathology-despite-fungal-clearance-during-cryptococcus-neoformans-meningoencephalitis
#16
Lori M Neal, Enze Xing, Jintao Xu, Jessica L Kolbe, John J Osterholzer, Benjamin M Segal, Peter R Williamson, Michal A Olszewski
Cryptococcus neoformans is a major fungal pathogen that disseminates to the central nervous system (CNS) to cause fatal meningoencephalitis, but little is known about immune responses within this immune-privileged site. CD4(+) T cells have demonstrated roles in anticryptococcal defenses, but increasing evidence suggests that they may contribute to clinical deterioration and pathology in both HIV-positive (HIV+) and non-HIV patients who develop immune reconstitution inflammatory syndrome (IRIS) and post-infectious inflammatory response syndrome (PIIRS), respectively...
November 21, 2017: MBio
https://www.readbyqxmd.com/read/29160817/impact-of-high-dose-multi-strain-probiotic-supplementation-on-neurocognitive-performance-and-central-nervous-system-immune-activation-of-hiv-1-infected-individuals
#17
Giancarlo Ceccarelli, Jason M Brenchley, Eugenio Nelson Cavallari, Giuseppe Corano Scheri, Mariangela Fratino, Claudia Pinacchio, Ivan Schietroma, Saeid Najafi Fard, Carolina Scagnolari, Ivano Mezzaroma, Vincenzo Vullo, Gabriella d'Ettorre
BACKGROUND: Gut microbiota has metabolic activity which influences mucosal homeostasis, local and systemic immune responses, and other anatomical systems (i.e., brain). The effects of dysbiosis are still poorly studied in Human Immunodeficiency Virus-1 (HIV-1) positive subjects and insufficient data are available on the impairment of the gut-brain axis, despite neurocognitive disorders being commonly diagnosed in these patients. This study evaluated the impact of a probiotic supplementation strategy on intrathecal immune activation and cognitive performance in combined antiretroviral therapy (cART) treated HIV-1 infected subjects...
November 21, 2017: Nutrients
https://www.readbyqxmd.com/read/29160731/combination-antiretroviral-therapy-accelerates-immune-recovery-in-patients-with-hiv-related-lymphoma-treated-with-epoch-a-comparison-within-one-prospective-trial-amc034
#18
Carlyn Rose C Tan, Stefan K Barta, Jeannette Lee, Michelle A Rudek, Joseph A Sparano, Ariela Noy
Drug-drug interactions between cART and chemotherapy may impact HIV and lymphoma control or lead to increased toxicities. No prospective comparative data informs potential harms and benefits. In AMC034, HIV-associated high-grade B-cell NHL patients received DA-EPOCH with rituximab. cART was given with EPOCH or delayed until chemotherapy completion per investigator choice. Pharmacokinetic, immunological, and treatment effects of concurrent cART were evaluated. CD4 counts dropped during EPOCH in both groups but recovered to higher than baseline 6 months post-EPOCH only in the cART group...
November 21, 2017: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/29158267/methamphetamine-increases-hiv-infectivity-in-neural-progenitor-cells
#19
Marta Skowronska, Marisa McDonald, Martina Velichkovska, Ana Rachel Leda, Minseon Park, Michal Toborek
HIV-1 infection and methamphetamine (METH) abuse frequently occur simultaneously and may have synergistic pathological effects. Although HIV-positive/active METH users have been shown to have higher HIV viral loads and experience more severe neurological complications than non-users, the direct impact of METH on HIV infection and its link to the development of neurocognitive alternations are still poorly understood. In the present study, we hypothesized that METH impacts HIV infection of neural progenitor cells (NPC) by a mechanism encompassing NFκB/SP1-mediated HIV-LTR activation...
November 20, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/29147885/proceedings-of-the-2017-isev-symposium-on-hiv-neurohiv-drug-abuse-evs
#20
Guoku Hu, Sowmya Yelamanchili, Fatah Kashanchi, Norman Haughey, Vincent C Bond, Kenneth W Witwer, Lynn Pulliam, Shilpa Buch
Despite the success of combination antiretroviral therapy (cART), there is increased prevalence of HIV-associated neurocognitive disorders (HAND) in HIV-1-infected individuals on cART, which poses a major health care challenge. Adding further complexity to this long-term antiretroviral use is the comorbidity with drugs of abuse such as morphine, cocaine, and methamphetamine, which can in turn, exacerbate neurologic and cognitive deficits associated with HAND. Furthermore, HIV proteins, such as the transactivator of transcription (Tat) and the envelope protein (gp120), as well as antiretrovirals themselves can also contribute to the progression of neurodegeneration underlying HAND...
November 16, 2017: Journal of Neurovirology
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