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HIV cognitive impairment

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https://www.readbyqxmd.com/read/29350337/baseline-neurocognitive-functioning-predicts-viral-load-suppression-at-1-year-follow-up-among-newly-diagnosed-hiv-infected-patients
#1
Lokesh Shahani, Lucrecia Salazar, Steven P Woods, Rodrigo Hasbun
The current prospective observational study evaluated the impact of baseline neurocognitive impairment on future viral load suppression among antiretroviral medication naive persons newly diagnosed with HIV infection. We used the Montreal Cognitive Assessment (MoCA) score less than 26, to identify patients with neurocognitive deficits. Of the 138 patients enrolled; virologic suppression was seen in 61% of the participants, while 72% of the participants had a MoCA score less than 26 at baseline. Variables significantly associated with low MoCA score included higher age (p < 0...
January 19, 2018: AIDS and Behavior
https://www.readbyqxmd.com/read/29344357/examining-the-effectiveness-of-a-cognitive-intervention-to-improve-cognitive-function-in-a-population-of-older-adults-living-with-hiv-a-pilot-study
#2
Judy A Frain, Ling Chen
Objective: The purpose of this randomized-controlled pilot study was to explore the effectiveness of a home-based computerized cognitive training intervention in improving cognitive function in a population of older adults with mild cognitive impairment who are living with HIV. Methods: In all, 24 participants were enrolled in this study. All study participants were impaired [defined as Montreal Cognitive Assessment (MoCA) score < 26]; 12 were randomly assigned to a computer-training intervention group and 12 to a control group...
January 2018: Therapeutic Advances in Infectious Disease
https://www.readbyqxmd.com/read/29290197/primary-cns-lymphoma-vs-tumefactive-multiple-sclerosis-a-diagnostic-challenge
#3
Sameen Bin Naeem, Farheen Niazi, Atif Baig, Hina Sadiq, Mubbasher Sattar
Primary CNS (central nervous system) lymphoma is a rare condition with the incidence of less than 1% of all non-Hodgkin lymphomas (NHLs) and approximately 2% of all primary brain tumours. Diagnosis can be challenging and necessitates brain biopsy for definitive diagnosis. A 41-year male presented with history of impaired cognition, facial asymmetry, visual impairment and left sided body weakness. MRI brain demonstrated multiple enhancing lesions with one larger lesion in right basal ganglia with surrounding oedema and mass effect...
January 2018: Journal of the College of Physicians and Surgeons—Pakistan: JCPSP
https://www.readbyqxmd.com/read/29282815/prevalence-of-and-risk-factors-for-cerebral-microbleeds-among-adult-patients-with-haemophilia-a-or-b
#4
H Husseinzadeh, T Chiasakul, P A Gimotty, B Pukenas, R Wolf, M Kelty, E Chiang, P F Fogarty, A Cuker
INTRODUCTION: Cerebral microbleeds (CMBs) represent clinically silent haemorrhagic events. Cerebral microbleeds (CMBs) portend negative neurovascular and cognitive outcomes in the general population and are associated with cognitive impairment in persons with haemophilia (PWH). Prevalence, patterns, and risk factors for CMBs in PWH have not been directly compared to persons without coagulopathy. AIM: To examine prevalence, patterns, and risk factors for CMBs in PWH vs normal controls...
December 28, 2017: Haemophilia: the Official Journal of the World Federation of Hemophilia
https://www.readbyqxmd.com/read/29260041/cognitive-functions-in-newly-diagnosed-patients-with-hiv-infection-in-a-tertiary-health-facility-assessment-using-community-screening-interview-for-dementia
#5
T A Sumonu, F Imarhiagbe, L F Owolabi, O A Ogunrin, M A Komolafe, O S Ilesanmi
Introduction: Neurocognitive dysfunction is a detrimental complication of HIV infection. In this study we attempt to characterize the pattern of cognitive dysfunction in a sample of Nigerian patients with newly diagnosed HIV infection. Methods: We conducted a prospective study in which 50 patients with newly diagnosed HIV infection were studied along with 50 normal control subjects. The participants were evaluated with the medical history, general, physical and neurological examination...
December 2017: ENeurologicalSci
https://www.readbyqxmd.com/read/29247305/neurologic-disease-in-feline-immunodeficiency-virus-infection-disease-mechanisms-and-therapeutic-interventions-for-neuroaids
#6
Christopher Power
Feline immunodeficiency virus (FIV) is a lentivirus that causes immunosuppression through virus-mediated CD4+ T cell depletion in feline species. FIV infection is complicated by virus-induced disease in the nervous system. FIV enters the brain soon after primary infection and is detected as FIV-encoded RNA, DNA, and proteins in microglia, macrophages, and astrocytes. FIV infection activates neuroinflammatory pathways including cytokines, chemokines, proteases, and ROS with accompanying neuronal injury and loss...
December 15, 2017: Journal of Neurovirology
https://www.readbyqxmd.com/read/29244126/silent-cerebral-small-vessel-disease-twice-as-prevalent-in-middle-aged-well-controlled-cart-treated-hiv-infected-individuals-than-hiv-uninfected-individuals
#7
Antoine Moulignier, Julien Savatovsky, Lambert Assoumou, François-Xavier Lescure, Cédric Lamirel, Ophelia Godin, Nadia Valin, Roland Tubiana, Ana Canestri, Pascal Roux, Jean-Claude Sadik, Laurence Salomon, Marie Abrivard, Christine Katlama, Yazdan Yazdanpanah, Gilles Pialoux, Pierre-Marie Girard, Dominique Costagliola
Background: Silent cerebral small-vessel disease (CSVD) is defined as white matter hyperintensities, silent brain infarction or microbleeds. CSVD is responsible for future vascular events, cognitive impairment, frailty and shorter survival. CSVD prevalence among middle-aged persons living with well-controlled HIV infection (PLHIVs) is unknown. Methods: ANRS EP51 MicroBREAK (NCT02082574) is a cross-sectional study with prospective enrollment of treated PLHIVs, ≥50 years old with viral load controlled for ≥12 months, and frequency age- and sex-matched HIV-uninfected controls (HUCs)...
December 13, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/29200184/structural-neuroimaging-and-neuropsychologic-signatures-of-vertically-acquired-hiv
#8
Robert Paul, Wasana Prasitsuebsai, Neda Jahanashad, Thanyawee Puthanakit, Paul Thompson, Linda Aurpibul, Rawiwan Hansudewechakul, Pope Kosalaraksa, Suparat Kanjanavanit, Chaiwat Ngampiyaskul, Wicharn Luesomboon, Sukalaya Lerdlum, Mantana Pothisri, Pannee Visrutaratna, Victor Valcour, Talia M Nir, Arvin Saremi, Stephen Kerr, Jintanat Ananworanich
BACKGROUND: Children with vertically acquired human immunodeficiency virus (HIV) exhibit persistent cognitive impairments, yet the corresponding neuroimaging signature of vertical infection remains unclear. METHODS: Fifty healthy control children and 51 vertically infected children were included in the study. The HIV-infected group consisted of survivors who had not received antiretroviral therapy (ART) at birth. The HIV-infected group averaged 11.4 (2.5) years of age, with a median CD4 count of 683 cells/mm...
December 1, 2017: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/29187813/a-mirna-signature-for-cognitive-deficits-and-alcohol-use-disorder-in-persons-living-with-hiv-aids
#9
Dorota Wyczechowska, Hui-Yi Lin, Andrea LaPlante, Duane Jeansonne, Adam Lassak, Christopher H Parsons, Patricia E Molina, Francesca Peruzzi
HIV-associated neurocognitive disorders (HAND) affects more than half of persons living with HIV-1/AIDS (PLWHA). Identification of biomarkers representing the cognitive status of PLWHA is a critical step for implementation of successful cognitive, behavioral and pharmacological strategies to prevent onset and progression of HAND. However, the presence of co-morbidity factors in PLWHA, the most common being substance abuse, can prevent the identification of such biomarkers. We have optimized a protocol to profile plasma miRNAs using quantitative RT-qPCR and found a miRNA signature with very good discriminatory ability to distinguish PLWHA with cognitive impairment from those without cognitive impairment...
2017: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/29182762/cognitive-function-among-antiretroviral-treatment-na%C3%A3-ve-individuals-infected-with-hiv-1-subtype-g-versus-crf02_ag-in-nigeria
#10
Jibreel Jumare, Nicaise Ndembi, Samer S El-Kamary, Laurence Magder, Laura Hungerford, Tricia Burdo, Lindsay M Eyzaguirre, Patrick Dakum, Anya Umlauf, Mariana Cherner, Alash'le Abimiku, Man Charurat, William A Blattner, Walter Royal
Background: HIV-1 subtype has been shown to be associated with disease progression. We compared cognitive function between individuals infected with HIV-1 subtype G and CRF02_AG in Nigeria. Methods: For this cross-sectional study, samples were analyzed from 146 antiretroviral naïve participants. Genotypic analysis of plasma HIV RNA was performed by nested PCR of protease and reverse transcriptase genes, and sequences aligned with curated HIV-1 subtype references...
November 22, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/29170578/investigating-changes-in-resting-state-connectivity-from-functional-mri-data-in-patients-with-hiv-associated-neurocognitive-disorder-using-mca-and-machine-learning
#11
Adora M DSouza, Anas Z Abidin, Axel Wismüller
Infection of the brain by the Human Immunodeficiency Virus (HIV) causes irreversible damage to the synaptic connections resulting in cognitive impairment. Patients with HIV infection, showing signs of impairment in multiple cognitive domains, as assessed by neuropsychological testing, are said to exhibit symptoms of HIV Associated Neurocognitive Disorder (HAND). In this study, we use resting-state functional MRI (fMRI) data to distinguish between healthy subjects and subjects with symptoms of HAND. To this end, we first establish a measure of interaction between pairs of regional time-series by quantifying their non-linear functional connectivity using Mutual Connectivity Analysis (MCA)...
March 13, 2017: Proceedings of SPIE
https://www.readbyqxmd.com/read/29167591/identifying-hiv-associated-neurocognitive-disorder-using-large-scale-granger-causality-analysis-on-resting-state-functional-mri
#12
Adora M DSouza, Anas Z Abidin, Lutz Leistritz, Axel Wismüller
We investigate the applicability of large-scale Granger Causality (lsGC) for extracting a measure of multivariate information flow between pairs of regional brain activities from resting-state functional MRI (fMRI) and test the effectiveness of these measures for predicting a disease state. Such pairwise multivariate measures of interaction provide high-dimensional representations of connectivity profiles for each subject and are used in a machine learning task to distinguish between healthy controls and individuals presenting with symptoms of HIV Associated Neurocognitive Disorder (HAND)...
February 2017: Proceedings of SPIE
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
#13
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/29154688/substance-use-and-cognitive-function-as-drivers-of-condomless-anal-sex-among-hiv-positive-gay-bisexual-and-other-men-who-have-sex-with-men-aged-50-and-older-the-gold-studies
#14
Sandra A Kupprat, Kristen D Krause, Danielle C Ompad, Perry N Halkitis
PURPOSE: Substance use has been linked to the sexual transmission of HIV among gay, bisexual, and other men who have sex with men (MSM) across the lifespan. Among older, HIV-positive, MSM populations, cognitive dysfunction associated with age and HIV disease progression also may play a role in sexual risk-taking. People aged 50 years and older represent a growing proportion of the overall HIV-positive population. This study aimed to explore relationships between substance use and cognitive function, and their impact on condomless anal sex (CAS) among HIV-positive gay, bisexual, and other MSM aged 50 years and older...
November 20, 2017: LGBT Health
https://www.readbyqxmd.com/read/29131878/association-of-brain-structure-changes-and-cognitive-function-with-combination-antiretroviral-therapy-in-hiv-positive-individuals
#15
Ryan Sanford, Lesley K Fellows, Beau M Ances, D Louis Collins
Importance: Despite the introduction of combination antiretroviral therapy (cART), HIV-associated neurocognitive disorders continue to be a problem for treated HIV-positive individuals. The cause of this impairment remains unclear. Objective: To determine if detectable brain changes occur during a 2-year period in HIV-positive individuals who were aviremic and treated with cART. Design, Setting, and Participants: In this longitudinal case-control study, participants underwent neuroimaging and neuropsychological assessment approximately 2 years apart...
November 13, 2017: JAMA Neurology
https://www.readbyqxmd.com/read/29112532/speech-in-noise-perception-as-a-marker-of-cognitive-impairment-in-hiv-infection
#16
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/29112116/application-of-chitosan-chitooligosaccharide-and-their-derivatives-in-the-treatment-of-alzheimer-s-disease
#17
REVIEW
Qian-Qian Ouyang, Shannon Zhao, Si-Dong Li, Cai Song
Classic hypotheses of Alzheimer's disease (AD) include cholinergic neuron death, acetylcholine (ACh) deficiency, metal ion dynamic equilibrium disorder, and deposition of amyloid and tau. Increased evidence suggests neuroinflammation and oxidative stress may cause AD. However, none of these factors induces AD independently, but they are all associated with the formation of Aβ and tau proteins. Current clinical treatments based on ACh deficiency can only temporarily relieve symptoms, accompanied with many side-effects...
November 7, 2017: Marine Drugs
https://www.readbyqxmd.com/read/29099110/cognitive-impairment-among-older-adults-living-with-hiv-aids-and-frailty
#18
Alfonso Zamudio-Rodríguez, Sara Aguilar-Navarro, José Alberto Avila-Funes
In 2014, 17% of newly diagnosed HIV infection cases in the United States were made in people over 50 years of age; actually, it is expected that in the near future this population group will be the most affected. This epidemiological change can be explained by the increased incidence of HIV infection in people over 50 years, but also by its higher prevalence due to treatment advances. As HIV infection has become a chronic one, new challenges have emerged. For instance, early-onset "geriatric syndromes," such as frailty, have been recognized in these patients...
2017: Gaceta Médica de México
https://www.readbyqxmd.com/read/29081720/effects-of-recent-alcohol-consumption-level-on-neurocognitive-performance-in-hiv-individuals
#19
Kara R Douglas-Newman, Rachel V Smith, Mary V Spiers, Timothy Pond, Henry R Kranzler
OBJECTIVES: Although HIV+ individuals may be at increased risk of alcohol-related cognitive impairment, the relations between drinking level and cognitive performance in these individuals are not well understood. We examined whether higher levels of recent drinking in HIV+ individuals were associated with poorer cognitive performance, particularly in executive functioning (EF) and memory. METHODS: We administered a comprehensive cognitive battery to 120 seropositive subjects (101 men) who reported alcohol consumption in the preceding 90 days...
September 2017: Addictive Disorders & Their Treatment
https://www.readbyqxmd.com/read/29080244/impaired-patient-reported-outcomes-persist-in-hiv-hcv-co-infected-patients-and-in-cirrhotic-patients-despite-hcv-clearance
#20
Fabienne Marcellin, Philippe Morlat, Linda Wittkop, Dominique Salmon-Ceron, Maria Patrizia Carrieri
Dirks et al.(1) 's recent study provides greater insight into the neuropsychiatric symptoms experienced by HCV infected patients and questions how these symptoms are associated with HCV clearance. The authors show that in HCV infected patients with mild liver disease, none of the following outcomes depend on HCV clearance: cognitive function, mood alteration, health-related quality of life (HRQL) and fatigue (FIS scores). However, these results may not be generalizable to HIV-HCV co-infected patients and cirrhotic patients, who were excluded from the study and who are generally more concerned by fatigue and neuropsychiatric symptoms...
October 27, 2017: Journal of Viral Hepatitis
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