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Aids,neurocognitive impairment

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https://www.readbyqxmd.com/read/29228820/associations-between-depressive-symptomatology-and-neurocognitive-impairment-in-hiv-aids
#1
Sarah Tymchuk, Daniela Gomez, Noshin Koenig, M John Gill, Esther Fujiwara, Christopher Power
OBJECTIVE: Mood disorders and neurocognitive impairments are debilitating conditions among patients with HIV/AIDS. How these comorbidities interact and their relationships to systemic factors remain uncertain. Herein, we investigated factors contributing to depressive symptomatology (DS) in a prospective cohort of patients with HIV/AIDS in active care that included neuropsychological assessment. METHODS: Among patients with HIV/AIDS receiving combination antiretroviral therapy (cART) and ongoing clinical assessments including measures of sleep, health-related quality of life (HQoL), neuropsychological testing, and mood evaluation (Patient Health Questionnaire-9 [PHQ-9]) were performed...
January 1, 2017: Canadian Journal of Psychiatry. Revue Canadienne de Psychiatrie
https://www.readbyqxmd.com/read/29224583/nutrients-for-neurocognition-in-health-and-disease-measures-methodologies-and-mechanisms
#2
Andrew Scholey
Effective pharmaceutical treatments for age-related cognitive decline have proved elusive. There is, however, compelling evidence that nutritional status and supplementation could play crucial roles in modifying the expression of cognitive change through the lifespan. Subjective memory impairment and mild cognitive impairment can be harbingers of dementia but this is by no means inevitable. Neurocognitive change is influenced by a variety of processes, many of which are involved in other aspects of systemic health, including cardiovascular function...
December 11, 2017: Proceedings of the Nutrition Society
https://www.readbyqxmd.com/read/29187813/a-mirna-signature-for-cognitive-deficits-and-alcohol-use-disorder-in-persons-living-with-hiv-aids
#3
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/29172053/associations-of-neurofunctional-morphometric-and-metabolic-abnormalities-with-clinical-symptom-severity-and-recognition-deficit-in-obsessive-compulsive-disorder
#4
Chung-Man Moon, Gwang-Woo Jeong
BACKGROUND: Obsessive-compulsive disorder (OCD) causes neural dysfunction associated with cognitive deficit and emotional dysregulation. This study assessed the associations of the neurofunctional changes, gray matter (GM) and white matter (WM) volume alterations in conjunction with in vivo metabolic changes on the working memory tasks in patients with OCD. METHODS: Eighteen patients with OCD and 18 healthy controls matched for age, sex, and educational levels underwent high-resolution T1-weighted magnetic resonance imaging (MRI), event-related functional MRI (fMRI), and proton magnetic resonance spectroscopy (1H-MRS) at 3T...
November 14, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/29131878/association-of-brain-structure-changes-and-cognitive-function-with-combination-antiretroviral-therapy-in-hiv-positive-individuals
#5
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/29121259/exercise-ameliorates-neurocognitive-impairments-in-a-translational-model-of-pediatric-radiotherapy
#6
Iman Sahnoune, Taeko Inoue, Shelli R Kesler, Shaefali P Rodgers, Omaima M Sabek, Steen E Pedersen, Janice A Zawaski, Katharine H Nelson, M Douglas Ris, J Leigh Leasure, M Waleed Gaber
Background: While CRT is an effective treatment, healthy areas surrounding irradiation sites are negatively affected. Frontal lobe functions involving attention, processing speed and inhibition control are impaired. These deficits appear months to years after CRT and impair quality-of-life. Exercise has been shown to rejuvenate the brain and aid in recovery post-injury through its effects on neurogenesis and cognition. Methods: We developed a juvenile rodent CRT model that reproduces neurocognitive deficits...
November 7, 2017: Neuro-oncology
https://www.readbyqxmd.com/read/29080122/sex-differences-in-select-non-communicable-hiv-associated-comorbidities-exploring-the-role-of-systemic-immune-activation-inflammation
#7
REVIEW
Avanthi Raghavan, Dodie E Rimmelin, Kathleen V Fitch, Markella V Zanni
PURPOSE OF THE REVIEW: The goals of this review are to (1) explore HIV-associated cardiovascular disease (CVD), neurocognitive impairment, and non-AIDS-defining cancers (NADC) as heterogeneous model disease states fuelled in part by systemic immune activation/inflammation; (2) consider sex differences in the epidemiology of these diseases in both high-resource and lower-resource settings; and (3) examine biological and environmental factors which may contribute to heightened systemic immune activation/inflammation specifically among women living with HIV (WLHIV)...
December 2017: Current HIV/AIDS Reports
https://www.readbyqxmd.com/read/29075998/transgenic-mice-expressing-hiv-1-envelope-protein-gp120-in-the-brain-as-an-animal-model-in-neuroaids-research
#8
Victoria E Thaney, Ana B Sanchez, Jerel A Fields, Arpi Minassian, Jared W Young, Ricky Maung, Marcus Kaul
HIV-1 infection causes injury to the central nervous system (CNS) and is often associated with neurocognitive disorders. One model for brain damage seen in AIDS patients is the transgenic (tg) mouse expressing a soluble envelope protein gp120 of HIV-1 LAV in the brain in astrocytes under the control of the promoter of glial fibrillary acidic protein. These GFAP-gp120tg mice manifest several key neuropathological features observed in AIDS brains, such as decreased synaptic and dendritic density, increased numbers of activated microglia, and pronounced astrocytosis...
October 26, 2017: Journal of Neurovirology
https://www.readbyqxmd.com/read/29067312/a-multicenter-randomized-placebo-controlled-trial-for-cilostazol-in-patients-with-mild-cognitive-impairment-the-comcid-study-protocol
#9
Satoshi Saito, Shinsuke Kojima, Naoya Oishi, Ryosuke Kakuta, Takakuni Maki, Fumihiko Yasuno, Kazuyuki Nagatsuka, Haruko Yamamoto, Hidenao Fukuyama, Masanori Fukushima, Masafumi Ihara
INTRODUCTION: There are currently no effective treatments preventing conversion from mild cognitive impairment (MCI) to Alzheimer's disease. Cilostazol is a selective type-3 phosphodiesterase inhibitor that ameliorates accumulation of amyloid-β and has prevented cognitive decline in rodent models. Furthermore, cilostazol is known to suppress platelet aggregation, protect vascular endothelia, dilate vessels, and increase cerebral blood flow. Beneficial effects have also been shown in observational cohort studies, demonstrating the need for a prospective clinical trial...
November 2016: Alzheimer's & Dementia: Translational Research & Clinical Interventions
https://www.readbyqxmd.com/read/28902679/brief-report-peripheral-monocyte-macrophage-phenotypes-associated-with-the-evolution-of-cognitive-performance-in-hiv-infected-patients
#10
Massimiliano Fabbiani, Antonio Muscatello, Paolo Perseghin, Marco Bani, Arianna Incontri, Nicola Squillace, Giuseppe Lapadula, Andrea Gori, Alessandra Bandera
BACKGROUND: The contribution of monocyte activation in the development of HIV-associated neurocognitive disorders is not completely understood. This study aimed to explore the predictive value of peripheral monocyte/macrophage (M/M) phenotypes on the evolution of cognitive performance in a population of virologically suppressed HIV-infected patients. SETTING: Prospective, observational, longitudinal study. METHODS: HIV-1-infected patients with HIV-RNA <50copies/mL for >12 months underwent neuropsychological examination at baseline and after 1 year...
October 1, 2017: Journal of Acquired Immune Deficiency Syndromes: JAIDS
https://www.readbyqxmd.com/read/28876970/responding-to-ten-common-delirium-misconceptions-with-best-evidence-an-educational-review-for-clinicians
#11
Mark A Oldham, Nina M Flanagan, Ariba Khan, Olga Boukrina, Edward R Marcantonio
Delirium (acute confusion) is a serious, common health condition, and it predicts poor outcomes, including greater rates of mortality, institutionalization, prolonged hospitalization, and cognitive impairment. Expedient diagnosis and management are critical to address modifiable delirium causes and improve both quality of care and outcomes. Moreover, more than a third of delirium is preventable. Despite the clear significance of delirium and our increasingly sophisticated understanding of the condition, the gap between evidence and practice persists...
September 6, 2017: Journal of Neuropsychiatry and Clinical Neurosciences
https://www.readbyqxmd.com/read/28837678/clinical-utility-of-the-ucsd-performance-based-skills-assessment-brief-upsa-b-in-adults-living-with-hiv-associations-with-neuropsychological-impairment-and-patient-reported-everyday-functioning-difficulties
#12
Raeanne C Moore, Emily W Paolillo, Anne Heaton, Pariya L Fazeli, Dilip V Jeste, David J Moore
OBJECTIVE: Requiring only 10-15 minutes to complete, the UCSD Performance-Based Skills Assessment (UPSA-B) has high clinical utility as a brief measure of functional capacity. This study aimed to validate the UPSA-B in adults living with HIV/AIDS (HIV+), and identify whether the UPSA-B can be used as an indicator of functional dependence in this population. METHOD: One hundred and three HIV+ adults and 91 HIV- adults completed a comprehensive neuropsychological and neuromedical battery, including a self-report measure of functional status (IADL Dependence vs...
2017: PloS One
https://www.readbyqxmd.com/read/28782457/prospective-memory-in-youth-with-perinatally-acquired-hiv-infection
#13
Lynnette L Harris, Miriam C Chernoff, Sharon L Nichols, Paige L Williams, Patricia A Garvie, Cenk Yildirim, Stephen R McCauley, Steven Paul Woods
Youth with perinatal HIV infection (PHIV) are at increased risk for neurocognitive impairment (NCI). Prospective memory (PM) is a complex neurocognitive function that has been shown to be impaired in adults with HIV disease and independently associated with poorer daily living skills, including medication nonadherence. The current study sought to determine the presence and extent of PM deficits in youth with PHIV. Participants included 173 youth with PHIV and 85 youth perinatally HIV-exposed but uninfected (PHEU), mean age 14...
August 7, 2017: Child Neuropsychology: a Journal on Normal and Abnormal Development in Childhood and Adolescence
https://www.readbyqxmd.com/read/28768859/identification-of-emerging-macrophage-tropic-hiv-1-r5-variants-in-brain-tissue-of-aids-patients-without-severe-neurological-complications
#14
Maria Paz Gonzalez-Perez, Paul J Peters, Olivia O'Connell, Nilsa Silva, Carole Harbison, Sheila Cummings Macri, Saravanan Kaliyaperumal, Katherine Luzuriaga, Paul R Clapham
Untreated HIV-positive (HIV-1(+)) individuals frequently suffer from HIV-associated neurocognitive disorders (HAND), with about 30% of AIDS patients suffering severe HIV-associated dementias (HADs). Antiretroviral therapy has greatly reduced the incidence of HAND and HAD. However, there is a continuing problem of milder neurocognitive impairments in treated HIV(+) patients that may be increasing with long-term therapy. In the present study, we investigated whether envelope (env) genes could be amplified from proviral DNA or RNA derived from brain tissue of 12 individuals with normal neurology or minor neurological conditions (N/MC individuals)...
October 15, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28716545/effect-of-ageing-on-neurocognitive-function-by-stage-of-hiv-infection-evidence-from-the-multicenter-aids-cohort-study
#15
Karl Goodkin, Eric N Miller, Christopher Cox, Sandra Reynolds, James T Becker, Eileen Martin, Ola A Selnes, David G Ostrow, Ned C Sacktor
BACKGROUND: The demographics of the HIV epidemic in the USA have shifted towards older age. We aimed to establish the relationship between the processes of ageing and HIV infection in neurocognitive impairment. METHODS: With longitudinal data from the Multicenter AIDS Cohort Study, a long-term prospective cohort study of the natural and treated history of HIV infection among men who have sex with men in the USA, we examined the effect of ageing, HIV infection (by disease stage), and their interaction on five neurocognitive domains: information processing speed, executive function, episodic memory, working memory, and motor function...
September 2017: Lancet HIV
https://www.readbyqxmd.com/read/28639993/peripheral-monocytes-macrophages-phenotypes-associated-to-the-evolution-of-cognitive-performance-in-hiv-infected-patients
#16
Massimiliano Fabbiani, Antonio Muscatello, Paolo Perseghin, Marco Bani, Arianna Incontri, Nicola Squillace, Giuseppe Lapadula, Andrea Gori, Alessandra Bandera
BACKGROUND: The contribution of monocyte activation in the development of HIV-associated neurocognitive disorders is not completely understood. This study aimed to explore the predictive value of peripheral monocyte/macrophage (M/M) phenotypes on the evolution of cognitive performance in a population of virologically-suppressed HIV-infected patients. SETTING: Prospective, observational, longitudinal study. METHODS: HIV-1-infected patients with HIV-RNA<50copies/mL for >12 months underwent neuropsychological examination at baseline and after one year...
June 19, 2017: Journal of Acquired Immune Deficiency Syndromes: JAIDS
https://www.readbyqxmd.com/read/28567537/hiv-1-associated-neurocognitive-disorder-epidemiology-pathogenesis-diagnosis-and-treatment
#17
REVIEW
Christian Eggers, Gabriele Arendt, Katrin Hahn, Ingo W Husstedt, Matthias Maschke, Eva Neuen-Jacob, Mark Obermann, Thorsten Rosenkranz, Eva Schielke, Elmar Straube
The modern antiretroviral treatment of human immunodeficiency virus (HIV-1) infection has considerably lowered the incidence of opportunistic infections. With the exception of the most severe dementia manifestations, the incidence and prevalence of HIV-associated neurocognitive disorders (HAND) have not decreased, and HAND continues to be relevant in daily clinical practice. Now, HAND occurs in earlier stages of HIV infection, and the clinical course differs from that before the widespread use of combination antiretroviral treatment (cART)...
August 2017: Journal of Neurology
https://www.readbyqxmd.com/read/28548462/neurocognitive-mechanisms-of-real-world-autobiographical-memory-retrieval-insights-from-studies-using-wearable-camera-technology
#18
REVIEW
Tiffany E Chow, Jesse Rissman
In recent years, investigation into the cognitive and neural mechanisms of autobiographical memory has been aided by the use of experimental paradigms incorporating wearable camera technology. By effortlessly capturing first-person images of one's life events, these cameras provide a rich set of naturalistic stimuli that can later be used to trigger the recall of specific episodes. Here, we chronicle the development and progression of such studies in behavioral and neuroimaging examinations of both clinical and nonclinical adult populations...
May 2017: Annals of the New York Academy of Sciences
https://www.readbyqxmd.com/read/28505355/uncovering-the-neuroanatomical-correlates-of-cognitive-affective-and-conative-theory-of-mind-in-paediatric-traumatic-brain-injury-a-neural-systems-perspective
#19
Nicholas P Ryan, Cathy Catroppa, Richard Beare, Timothy J Silk, Stephen J Hearps, Miriam H Beauchamp, Keith O Yeates, Vicki A Anderson
Deficits in theory of mind (ToM) are common after neurological insult acquired in the first and second decade of life, however the contribution of large-scale neural networks to ToM deficits in children with brain injury is unclear. Using paediatric traumatic brain injury (TBI) as a model, this study investigated the sub-acute effect of paediatric traumatic brain injury on grey-matter volume of three large-scale, domain-general brain networks (the Default Mode Network, DMN; the Central Executive Network, CEN; and the Salience Network, SN), as well as two domain-specific neural networks implicated in social-affective processes (the Cerebro-Cerebellar Mentalizing Network, CCMN and the Mirror Neuron/Empathy Network, MNEN)...
September 1, 2017: Social Cognitive and Affective Neuroscience
https://www.readbyqxmd.com/read/28471765/impact-of-aging-on-neurocognitive-performance-in-previously-antiretroviral-naive-hiv-infected-individuals-on-their-first-suppressive-regimen
#20
Hamza Coban, Kevin Robertson, Marlene Smurzynski, Supriya Krishnan, Kunling Wu, Ronald J Bosch, Ann C Collier, Ronald J Ellis
BACKGROUND: Despite treatment with virologically suppressive antiretroviral therapy (ART), neurocognitive impairment may persist or develop de novo in aging HIV-infected individuals. We evaluated advancing age as a predictor of neurocognitive impairment in a large cohort of previously ART-naive individuals on long-term ART. DESIGN: The AIDS Clinical Trials Group Longitudinal Linked Randomized Trials was a prospective cohort study of HIV-infected individuals originally enrolled in randomized ART trials...
July 17, 2017: AIDS
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