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Hiv associated neurocognitive disorder

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https://www.readbyqxmd.com/read/29764716/individualized-targeted-computerized-cognitive-training-to-treat-hiv-associated-neurocognitive-disorder-an-interim-descriptive-analysis
#1
David E Vance, Michael Jensen, Frida Tende, James L Raper, Shannon Morrison, Pariya L Fazeli
No abstract text is available yet for this article.
April 23, 2018: Journal of the Association of Nurses in AIDS Care: JANAC
https://www.readbyqxmd.com/read/29762177/neuropsychological-phenotypes-among-men-with-and-without-hiv-disease-in-the-multicenter-aids-cohort-study
#2
Samantha A Molsberry, Yu Cheng, Lawrence Kingsley, Lisa Jacobson, Andrew J Levine, Eileen Martin, Eric N Miller, Cynthia A Munro, Ann Ragin, Ned Sacktor, James T Becker
OBJECTIVE: Mild forms of HIV-associated neurocognitive disorder (HAND) remain prevalent in the combination anti-retroviral therapy (cART) era. This study's objective was to identify neuropsychological subgroups within the Multicenter AIDS Cohort Study (MACS) based on the participant-based latent structure of cognitive function and to identify factors associated with subgroups. DESIGN: The MACS is a four-site longitudinal study of the natural and treated history of HIV disease among gay and bisexual men...
May 11, 2018: AIDS
https://www.readbyqxmd.com/read/29761877/diagnostic-accuracy-of-new-and-old-cognitive-screening-tools-for-hiv-associated-neurocognitive-disorders
#3
M Trunfio, D Vai, C Montrucchio, C Alcantarini, A Livelli, M C Tettoni, G Orofino, S Audagnotto, D Imperiale, S Bonora, G Di Perri, A Calcagno
OBJECTIVES: Considering the similarities between HIV-associated neurocognitive disorders (HAND) and neurodegenerative dementias and the frequency of executive dysfunctions among HIV-positive patients, we evaluated the accuracy of the Frontal Assessment Battery and Clock-Drawing Test together with the Three Questions Test and International HIV Dementia Scale to screen for HAND. METHODS: A cross-sectional monocentric study was conducted from 2010 to 2017. The index tests were represented by the four screening tools; the reference standard was represented by a comprehensive neurocognitive battery used to investigate 10 cognitive domains...
May 15, 2018: HIV Medicine
https://www.readbyqxmd.com/read/29750804/temporal-compartmental-changes-in-viral-rna-and-neuronal-injury-in-a-primate-model-of-neuroaids
#4
R Gilberto González, Robert Fell, Julian He, Jennifer Campbell, Tricia H Burdo, Patrick Autissier, Lakshmanan Annamalai, Faramarz Taheri, Termara Parker, Jeffrey D Lifson, Elkan F Halpern, Mark Vangel, Eliezer Masliah, Susan V Westmoreland, Kenneth C Williams, Eva-Maria Ratai
Despite the advent of highly active anti-retroviral therapy HIV-associated neurocognitive disorders (HAND) continue to be a significant problem. Furthermore, the precise pathogenesis of this neurodegeneration is still unclear. The objective of this study was to examine the relationship between infection by the simian immunodeficiency virus (SIV) and neuronal injury in the rhesus macaque using in vivo and postmortem sampling techniques. The effect of SIV infection in 23 adult rhesus macaques was investigated using an accelerated NeuroAIDS model...
2018: PloS One
https://www.readbyqxmd.com/read/29742062/global-perspective-of-novel-therapeutic-strategies-for-the-management-of-neuroaids
#5
Swatantra Kumar, Vimal K Maurya, Himanshu R Dandu, Madan Lb Bhatt, Shailendra K Saxena
Among Human immunodeficiency virus (HIV) infected individuals, around two-thirds of patients present with neuroAIDS, where HIV-associated neurocognitive disorders (HAND), and HIV-associated dementia (HAD) are the most prevailing neurological complications. The neuropathology of neuroAIDS can be characterized by the presence of HIV infected macrophages and microglia in the brain, with the formation of multinucleated giant cells. Global predominant subtypes of HIV-1 clade B and C infections influence the differential effect of immune and neuronal dysfunctions, leading to clade-specific clinical variation in neuroAIDS patient cohorts...
May 8, 2018: Biomolecular Concepts
https://www.readbyqxmd.com/read/29737506/hiv-1-protein-tat-1-72-impairs-neuronal-dendrites-via-activation-of-pp1-and-regulation-of-the-creb-bdnf-pathway
#6
Yu Liu, Deyu Zhou, Jiabin Feng, Zhou Liu, Yue Hu, Chang Liu, Xiaohong Kong
Despite the success of combined antiretroviral therapy in recent years, the prevalence of human immunodeficiency virus (HIV)-associated neurocognitive disorders in people living with HIV-1 is increasing, significantly reducing the health-related quality of their lives. Although neurons cannot be infected by HIV-1, shed viral proteins such as transactivator of transcription (Tat) can cause dendritic damage. However, the detailed molecular mechanism of Tat-induced neuronal impairment remains unknown. In this study, we first showed that recombinant Tat (1-72 aa) induced neurotoxicity in primary cultured mouse neurons...
May 8, 2018: Virologica Sinica
https://www.readbyqxmd.com/read/29737194/characterization-of-cellular-immune-responses-in-thai-individuals-with-and-without-hiv-associated-neurocognitive-disorders
#7
Silvia Ratto-Kim, Alexandra Schuetz, Pasiri Sithinamsuwan, John Barber, Nicholas Hutchings, Sukalaya Lerdlum, James L K Fletcher, Yuwadee Phuang-Ngern, Weerawan Chuenarom, Somporn Tipsuk, Mantana Pothisri, Tanate Jadwattanakul, Supunnee Jirajariyavej, Chayada Sajjaweerawan, Siriwat Akapirat, Thep Chalermchai, Duanghathai Suttichom, Boot Keawboon, Peeriya Prueksakaew, Putthachard Karnsomlap, David Clifford, Robert H Paul, Mark de Souza, Jerome H Kim, Jintinant Anaworanich, Victor Valcour
HIV-associated cognitive disorder (HAND) remains a challenge despite antiretroviral therapy (ART), and has been linked to monocyte/macrophage (M/M) migration to the brain. Due to the potential impact of T cell effector mechanisms in eliminating activated/HIV-infected M/M, T cell activation may play a role in the development of HAND. We sought to investigate the relationship between cognition and both CD8+ T-cell activation (HLA-DR+/CD38+) and HIV-specific CD8+ T-cell responses at the time of HIV diagnosis and 12 months post initiation of ART...
May 8, 2018: AIDS Research and Human Retroviruses
https://www.readbyqxmd.com/read/29731931/correlation-between-lymphocyte-cd4-count-treatment-duration-opportunistic-infection-and-cognitive-function-in-human-immunodeficiency-virus-acquired-immunodeficiency-syndrome-hiv-aids-patients
#8
Fasihah Irfani Fitri, Aldy Safruddin Rambe, Aida Fitri
BACKGROUND: Human immunodeficiency virus (HIV) infection is an epidemic worldwide, despite the marked benefits of antiretroviral therapy (ARV) in reducing severe HIV-associated dementia. A milder form of neurocognitive disorders are still prevalent and remain a challenge. AIM: This study aimed to determine the correlation between plasma cluster of differentiation 4 (CD4) lymphocyte, duration of ARV treatment, opportunistic infections, and cognitive function in HIV-AIDS patients...
April 15, 2018: Open Access Macedonian Journal of Medical Sciences
https://www.readbyqxmd.com/read/29713221/altered-white-matter-integrity-in-human-immunodeficiency-virus-associated-neurocognitive-disorder-a-tract-based-spatial-statistics-study
#9
Se Won Oh, Na-Young Shin, Jun Yong Choi, Seung-Koo Lee, Mi Rim Bang
Objective: Human immunodeficiency virus (HIV) infection has been known to damage the microstructural integrity of white matter (WM). However, only a few studies have assessed the brain regions in HIV-associated neurocognitive disorders (HAND) with diffusion tensor imaging (DTI). Therefore, we sought to compare the DTI data between HIV patients with and without HAND using tract-based spatial statistics (TBSS). Materials and Methods: Twenty-two HIV-infected patients (10 with HAND and 12 without HAND) and 11 healthy controls (HC) were enrolled in this study...
May 2018: Korean Journal of Radiology: Official Journal of the Korean Radiological Society
https://www.readbyqxmd.com/read/29708629/defining-the-molecular-mechanisms-of-hiv-1-tat-secretion-ptdins-4-5-p-2-at-the-epicenter
#10
REVIEW
Anthony R Mele, Jamie Marino, Kenneth Chen, Vanessa Pirrone, Chris Janetopoulos, Brian Wigdahl, Zachary Klase, Michael R Nonnemacher
The human immunodeficiency virus type 1 (HIV-1) transactivator of transcription (Tat) protein functions both intracellularly and extracellularly. Intracellularly the main function is to enhance transcription of the viral promoter. However, this process only requires a small amount of intracellular Tat. The majority of Tat is secreted through an unconventional mechanism by binding to phosphatidylinositol-4,5-bisphosphate (PtdIns(4,5)P2 ), a phospholipid in the inner leaflet of the plasma membrane that is required for secretion...
April 30, 2018: Traffic
https://www.readbyqxmd.com/read/29707383/the-association-between-asymptomatic-and-mild-neurocognitive-impairment-and-adherence-to-antiretroviral-therapy-among-people-living-with-human-immunodeficiency-virus
#11
Violet Awori, Peter Mativo, Gerald Yonga, Reena Shah
Background: Asymptomatic cognitive impairment in human immunodeficiency virus (HIV)-infected patients has recently been recognised as part of HIV-associated neurocognitive disorders. This has been implicated as one of the causes of poor adherence to antiretroviral therapy (ART). Objective: To assess the association between neurocognitive impairment (asymptomatic and mild forms) and adherence to ART. Methods: This was a cross-sectional survey involving 218 participants consecutively sampled from those attending the HIV treatment clinic at Aga Khan University Hospital in Nairobi...
2018: Southern African Journal of HIV Medicine
https://www.readbyqxmd.com/read/29705930/united-states-national-trends-in-mortality-length-of-stay-los-and-associated-costs-of-cognitive-impairment-in-hiv-population-from-2005-to-2014
#12
Smit Patel, Neil U Parikh, Ravikumar Aalinkeel, Jessica L Reynolds, Rashmi Dmello, Stanley A Schwartz, Supriya D Mahajan
We evaluated national trends of in-hospital discharge rates, mortality outcomes, health care costs, length of stay in HIV patients with cognitive disorders. Neurological involvement in HIV is commonly associated with cognitive impairment termed as HIV-associated neurocognitive disorder (HAND) which includes a spectrum of neurocognitive dysfunction associated with HIV infection. Although severe and progressive neurocognitive impairment has become rare in HIV patients in the era of potent antiretroviral therapy, a majority of HIV patients have mild to moderate degree of neurocognitive impairment...
April 28, 2018: AIDS and Behavior
https://www.readbyqxmd.com/read/29705605/the-role-of-catecholamines-in-hiv-neuropathogenesis
#13
R Nolan, P J Gaskill
The success of anti-retroviral therapy has improved the quality of life and lifespan of HIV+ individuals, transforming HIV infection into a chronic condition. These improvements have come with a cost, as chronic HIV infection and long-term therapy have resulted in the emergence of a number of new pathologies. This includes a variety of the neuropathological and neurocognitive effects collectively known as HIVassociated neurocognitive disorders (HAND) or NeuroHIV. These effects persist even in the absence of viral replication, suggesting that they are mediated the long-term changes in the CNS induced by HIV infection rather than by active replication...
April 26, 2018: Brain Research
https://www.readbyqxmd.com/read/29703241/human-immunodeficiency-virus-type-1-hiv-1-mediated-neuroinflammation-dysregulates-neurogranin-and-induces-synaptodendritic-injury
#14
Debjani Guha, Marc C E Wagner, Velpandi Ayyavoo
BACKGROUND: Human immunodeficiency virus type 1 (HIV-1)-associated neurocognitive disorder (HAND) is a common outcome of a majority of HIV-1-infected subjects and is associated with synaptodendritic damage. Neurogranin (Ng), a postsynaptic protein, and calmodulin (CaM) are two important players of synaptic integrity/functions. The biological role of Ng in the context of HAND is unknown. METHODS: We compared the expression of Ng in frontal cortex (FC) tissues from control and HIV-1-positive subjects with and without HAND by immunohistochemistry, western blot, and qRT-PCR...
April 27, 2018: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/29696578/motor-function-declines-over-time-in-human-immunodeficiency-virus-and-is-associated-with-cerebrovascular-disease-while-hiv-associated-neurocognitive-disorder-remains-stable
#15
Isabel M Elicer, Desiree Byrd, Uraina S Clark, Susan Morgello, Jessica Robinson-Papp
HIV-associated neurocognitive disorders (HAND) remain prevalent in the combined antiretroviral therapy (CART) era, especially the milder forms. Despite these milder phenotypes, we have shown that motor abnormalities persist and have quantified them with the HIV Dementia Motor Scale (HDMS). Our objectives were to replicate, in an independent sample, our prior findings that the HDMS is associated with cognitive impairment in HIV, while adding consideration of age-associated comorbidities such as cerebrovascular disease, and to examine the longitudinal trajectories of cognitive and motor dysfunction...
April 25, 2018: Journal of Neurovirology
https://www.readbyqxmd.com/read/29694602/is-the-telomere-length-associated-with-neurocognitive-disabilities-in-hiv-1-infected-subjects
#16
Marilia Ladeira de Araújo, Wellington Duarte, Augusto César Penalva de Oliveira, Maria Rita Polo Gascón, Luiz Augusto Marcondes Fonseca, Raquel de Melo Alves Paiva, Bárbara Santana, Rodrigo Tocantins Calado, Jorge Casseb
OBJECTIVE: We evaluated the association between cognitive deficits and leukocyte telomere length (LTL) in HIV-1-infected individuals. DESIGN: 73 HIV-1-infected patients undergoing neuropsychological evaluation and 91 healthy controls were included in this study. Fifteen HIV-1 positive patients did not have cognitive disorders whereas 26 had asymptomatic neurocognitive disorder (ANI), 13 presented mild to moderate neurocognitive disorder (MND), and 10 had HIV-associated dementia (HAD)...
2018: Revista do Instituto de Medicina Tropical de São Paulo
https://www.readbyqxmd.com/read/29690789/protective-effects-of-ginsenoside-rb1-against-blood-brain-barrier-damage-induced-by-human-immunodeficiency-virus-1-tat-protein-and-methamphetamine-in-sprague-dawley-rats
#17
Juan Li, Bairui Zeng, Xiao Hu, Zhen Li, Dongxian Zhang, Genmeng Yang, Jiejie Dai, Xiaofeng Zeng
Although antiretroviral therapy has helped to improve the lives of individuals infected with human immunodeficiency virus 1 (HIV-1), these patients are often still afflicted with HIV-1-associated neurocognitive disorders, which can lead to neurocognitive impairment and even dementia, and continue to hamper their quality of life. Methamphetamine abuse in HIV-1 patients poses a potential risk for HIV-associated neurocognitive disorders, because methamphetamine and HIV-1 proteins such as transactivator of transcription can synergistically damage the blood-brain barrier (BBB)...
2018: American Journal of Chinese Medicine
https://www.readbyqxmd.com/read/29687402/verbal-and-spatial-working-memory-among-drug-using-hiv-infected-men-and-women
#18
Eileen Martin, M K Keutmann, J S Fogel, P M Maki, R Gonzalez, J Vassileva, L H Rubin, D Hardy
Working memory (WM) is a critical component of many neurocognitive functions. The literature has demonstrated consistently that WM impairment is more frequent and severe among substance-dependent individuals (SDIs) infected with HIV compared with uninfected SDIs; however, the SDIs who participated in these previous studies were primarily male. There are few published data on WM performance among HIV+ women with or without substance use disorders, and essentially no direct comparisons of WM performance between HIV+ men and women, regardless of substance use...
April 23, 2018: Journal of Neurovirology
https://www.readbyqxmd.com/read/29685540/resting-state-functional-connectivity-mri-analysis-in-human-immunodeficiency-virus-and-hepatitis-c-virus-co-infected-subjects-a-pilot-study
#19
Simone Corgiolu, Luigi Barberini, Jasjit S Suri, Antonella Mandas, Diego Costaggiu, Paola Piano, Fulvio Zaccagna, Pierleone Lucatelli, Antonella Balestrieri, Luca Saba
BACKGROUND AND PURPOSE: Hepatitis C virus (HCV) co-infection's role on cognitive impairment of human immunodeficiency virus (HIV) positive patients is still debated and functional neuroimaging evaluation on this matter is lacking. To provide further insight about HCV's neuro-effects on HIV associated neurocognitive disorder (HAND), we performed a pilot resting state (RS) functional connectivity magnetic resonance imaging (fcMRI) study to find eventual functional connectivity alteration that could reflect HCV related cognitive performance degradation...
May 2018: European Journal of Radiology
https://www.readbyqxmd.com/read/29683852/reversing-interferon-alpha-neurotoxicity-in-a-hiv-associated-neurocognitive-disorders-mouse-model
#20
Rajeth Koneru, Heather Bimonte-Nelson, Vincent Ciavatta, Woldeab Haile, Kate Elmore, Jennifer Ward, Leonard Maroun, William R Tyor
OBJECTIVE: Increased brain interferon-alpha (IFNα) is associated with neurodegenerative disorders, including HIV-associated neurocognitive disorders (HAND). HAND occurs in approximately 50% of individuals with HIV despite combined antiretroviral therapy (cART). Therefore, adjunctive therapies must be developed that prevent progression of mild forms of HAND to HIV-associated dementia. Increased IFNα in the CNS has been associated with HAND in patients and in a HAND mouse model. DESIGN AND METHODS: B18R binds IFNα and ameliorates HAND mouse brain histopathology (HIV encephalitis)...
April 19, 2018: AIDS
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