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Metabolic disorders in HIV

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https://www.readbyqxmd.com/read/29449278/7t-brain-mrs-in-hiv-infection-correlation-with-cognitive-impairment-and-performance-on-neuropsychological-tests
#1
M Mohamed, P B Barker, R L Skolasky, N Sacktor
BACKGROUND AND PURPOSE: Validated neuroimaging markers of HIV-associated neurocognitive disorder in patients on antiretroviral therapy are urgently needed for clinical trials. The purpose of this study was to explore the relationship between cognitive impairment and brain metabolism in older subjects with HIV infection. It was hypothesized that MR spectroscopy measurements related to neuronal health and function (particularly N -acetylaspartate and glutamate) would be lower in HIV-positive subjects with worse cognitive performance...
February 15, 2018: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/29430124/incidental-global-hypometabolism-in-the-brain-of-patient-with-aids-related-dementia-seen-on-18f-fluorodeoxyglucose-positron-emission-tomography-computed-tomography
#2
Priyanka Verma, Ramesh V Asopa
Human immunodeficiency virus (HIV)-related dementia is the most severe form of neurocognitive disorder in patients with AIDS. It is relatively uncommon in postantiretroviral therapy (HAART) era and is associated with a high cerebrospinal fluid CSF/plasma viral load. 18F-fluorodeoxyglucose positron emission tomography/computed tomography (18F-FDG PET/CT) has proven useful in malignancies, infections, and central nervous system lesions in HIV-infected patients and has been used to explore regional cerebral glucose metabolism patterns in HIV-positive patients with and without cognitive impairment...
January 2018: Indian Journal of Nuclear Medicine: IJNM: the Official Journal of the Society of Nuclear Medicine, India
https://www.readbyqxmd.com/read/29394497/the-current-state-of-gpcr-based-drug-discovery-to-treat-metabolic-disease
#3
REVIEW
Kyle W Sloop, Paul J Emmerson, Michael A Statnick, Francis S Willard
One approach of modern drug discovery is to identify agents that enhance or diminish signal transduction cascades in various cell types and tissues by modulating the activity of G-protein coupled receptors (GPCRs). This strategy has resulted in the development of new medicines to treat many conditions, including cardiovascular disease, psychiatric disorders, HIV/AIDS, certain forms of cancer, and type 2 diabetes mellitus (T2DM). These successes justify further pursuit of GPCRs as disease targets and provide key learning that should help guide identifying future therapeutic agents...
February 2, 2018: British Journal of Pharmacology
https://www.readbyqxmd.com/read/29383534/psychosocial-complications-of-hiv-aids-metabolic-disorder-comorbidities-among-patients-in-a-rural-area-of-southeastern-united-states
#4
Dominica Hernandez, Seth C Kalichman, Harold P Katner, Kaylee Burnham, Moira O Kalichman, Marnie Hill
As people living with HIV experience longer life-expectancies resulting from antiretroviral therapy, comorbid conditions are increasing, particularly metabolic disorders. There is potential for psychosocial factors such as stigma experiences, depression, and alcohol use to complicate both HIV infection and metabolic disorders, including diabetes mellitus and hyperlipidemia. While the impact of these psychosocial factors on HIV infection alone are widely studied, their role in potentially complicating HIV co-morbid metabolic conditions has received little attention...
January 30, 2018: Journal of Behavioral Medicine
https://www.readbyqxmd.com/read/29356205/antiviral-potential-of-medicinal-plants-against-hiv-hsv-influenza-hepatitis-and-coxsackievirus-a-systematic-review
#5
REVIEW
Muhammad Akram, Imtiaz Mahmood Tahir, Syed Muhammad Ali Shah, Zahed Mahmood, Awais Altaf, Khalil Ahmad, Naveed Munir, Muhammad Daniyal, Suhaila Nasir, Huma Mehboob
Viral infections are being managed therapeutically through available antiviral regimens with unsatisfactory clinical outcomes. The refractory viral infections resistant to available antiviral drugs are alarming threats and a serious health concern. For viral hepatitis, the interferon and vaccine therapies solely are not ultimate solutions due to recurrence of hepatitis C virus. Owing to the growing incidences of viral infections and especially of resistant viral strains, the available therapeutic modalities need to be improved, complemented with the discovery of novel antiviral agents to combat refractory viral infections...
January 22, 2018: Phytotherapy Research: PTR
https://www.readbyqxmd.com/read/29352292/rna-seq-of-kaposi-s-sarcoma-reveals-alterations-in-glucose-and-lipid-metabolism
#6
For Yue Tso, Andrew V Kossenkov, Salum J Lidenge, Owen Ngalamika, John R Ngowi, Julius Mwaiselage, Jayamanna Wickramasinghe, Eun Hee Kwon, John T West, Paul M Lieberman, Charles Wood
Kaposi's sarcoma-associated herpesvirus (KSHV) is the etiologic agent of Kaposi's sarcoma (KS). It is endemic in a number of sub-Saharan African countries with infection rate of >50%. The high prevalence of HIV-1 coupled with late presentation of advanced cancer staging make KS the leading cancer in the region with poor prognosis and high mortality. Disease markers and cellular functions associated with KS tumorigenesis remain ill-defined. Several studies have attempted to investigate changes of the gene profile with in vitro infection of monoculture models, which are not likely to reflect the cellular complexity of the in vivo lesion environment...
January 19, 2018: PLoS Pathogens
https://www.readbyqxmd.com/read/29330881/cocaine-and-hiv-1-tat-disrupt-cholesterol-homeostasis-in-astrocytes-implications-for-hiv-associated-neurocognitive-disorders-in-cocaine-user-patients
#7
Bianca Cotto, Kalimuthusamy Natarajaseenivasan, Kimberly Ferrero, Leroy Wesley, Matthew Sayre, Dianne Langford
Cholesterol synthesis and clearance by astrocytes are tightly regulated to maintain constant levels within the brain. In this context, liver X receptors (LXRs) are the master regulators of cholesterol homeostasis in the central nervous system (CNS). Increasing levels of cholesterol in astrocytes trigger LXR activation leading to the transcription of target genes involved in cholesterol trafficking and efflux, including apolipoprotein E, cytochrome P450 enzymes, sterol regulatory binding protein, and several ATP-binding cassette transporter proteins...
January 13, 2018: Glia
https://www.readbyqxmd.com/read/29323711/hiv-1-increases-extracellular-amyloid-beta-levels-through-neprilysin-regulation-in-primary-cultures-of-human-astrocytes
#8
Marta Martínez-Bonet, M Ángeles Muñoz-Fernández, Susana Álvarez
Since the success of combined antiretroviral therapy, HIV-1-infected individuals are now living much longer. This increased life expectancy is accompanied by a higher prevalence of HIV-1 associated neurocognitive disorders. Rising too is the incidence in these patients of pathological hallmarks of Alzheimer's disease such as increased deposition of amyloid beta protein (Aβ). Although neurons are major sources of Aβ in the brain, astrocytes are the most numerous glial cells, therefore, even a small level of astrocytic Aβ metabolism could make a significant contribution to brain pathology...
January 11, 2018: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29313284/endocrinological-aspects-of-hiv-infection
#9
REVIEW
F S Mirza, P Luthra, L Chirch
PURPOSE: Patients with human immunodeficiency virus (HIV) are living longer with effective antiretroviral therapies and are enjoying near normal life span. Therefore, they are encountering endocrine issues faced by the general population along with those specific to HIV infection. The purpose of this article is to review the common endocrine aspects of HIV infection, and the early detection and management strategies for these complications. METHODS: Recent literature on HIV and endocrine disease was reviewed...
January 8, 2018: Journal of Endocrinological Investigation
https://www.readbyqxmd.com/read/29259605/role-of-monocyte-macrophages-during-hiv-siv-infection-in-adult-and-pediatric-acquired-immune-deficiency-syndrome
#10
REVIEW
Kristen M Merino, Carolina Allers, Elizabeth S Didier, Marcelo J Kuroda
Monocytes/macrophages are a diverse group of cells that act as first responders in innate immunity and then as mediators for adaptive immunity to help clear infections. In performing these functions, however, the macrophage inflammatory responses can also contribute to pathogenesis. Various monocyte and tissue macrophage subsets have been associated with inflammatory disorders and tissue pathogeneses such as occur during HIV infection. Non-human primate research of simian immunodeficiency virus (SIV) has been invaluable in better understanding the pathogenesis of HIV infection...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/29189172/cardiovascular-complications-of-human-immunodeficiency-virus-infection
#11
Daniela Sofia Martins Pinto, Manuel Joaquim Lopes Vaz da Silva
BACKGROUND: Since the introduction of antiretroviral therapy (ART), the life expectancy and health quality for patients infected with human immunodeficiency virus (HIV) have significantly improved. Nevertheless, as a result of not only the deleterious effects of the virus itself and prolonged ART, but also the effects of aging, cardiovascular diseases have emerged as one of the most common causes of death among these patients. OBJECTIVE: The purpose of this review is to explore the new insights on the spectrum of cardiovascular disease (CVD) in HIV infection, with emphasis on the factors that contribute to the atherosclerotic process and its role in the development of acute coronary syndrome in the setting of infection...
November 29, 2017: Current Cardiology Reviews
https://www.readbyqxmd.com/read/29184449/diabetes-metabolic-syndrome-and-dyslipidemia-in-people-living-with-hiv-in-africa-re-emerging-challenges-not-to-be-forgotten
#12
REVIEW
Nazik Elmalaika Husain, Sufian K Noor, Wadie M Elmadhoun, Ahmed O Almobarak, Heitham Awadalla, Clare L Woodward, Dushyant Mital, Mohamed H Ahmed
Background: The current challenge in managing people living with human immunodeficiency virus (PLWHIV) includes the identification and monitoring for comorbid health risks associated with HIV and its treatment and longer survival. Dyslipidemia, diabetes mellitus and metabolic syndrome are increasingly seen in PLWHIV. Objective: In this narrative review, we aimed to summarize the current knowledge about diabetes, dyslipidemia and metabolic syndrome in PLWHIV in Africa and also to discuss the challenges that patients as well as health authorities in Africa may face...
2017: HIV/AIDS: Research and Palliative Care
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/29160505/metabolic-disorders-and-cardiovascular-risk-in-people-living-with-hiv-aids-without-the-use-of-antiretroviral-therapy
#14
Mariana Amaral Raposo, Geyza Nogueira de Almeida Armiliato, Nathalia Sernizon Guimarães, Camila Abrahão Caram, Raíssa Domingues de Simoni Silveira, Unaí Tupinambás
INTRODUCTION: Metabolic disorders in people living with HIV/AIDS (PLH) have been described even before the introduction of antiretroviral (ARV) drugs in the treatment of HIV infection and are risk factors for cardiovascular diseases. Based on this, the purpose of this study was to assess metabolic disorders and cardiovascular risk in PLH before the initiation of antiretroviral treatment (ART). METHODS: This was a cross-sectional descriptive study of 87 PLH without the use of ART, which was carried out between January and September 2012 at a specialized infectious diseases center in Minas Gerais, Brazil...
September 2017: Revista da Sociedade Brasileira de Medicina Tropical
https://www.readbyqxmd.com/read/29160443/body-fat-redistribution-and-changes-in-lipid-and-glucose-metabolism-in-people-living-with-hiv-aids
#15
Rebeca Antunes Beraldo, André Pereira Dos Santos, Mariana Palma Guimarães, Helena Siqueira Vassimon, Francisco José Albuquerque de Paula, Dalmo Roberto Lopes Machado, Maria Cristina Foss-Freitas, Anderson Marliere Navarro
INTRODUCTION: The HIV lipodystrophy syndrome is characterized by changes in metabolism, and body composition that increase cardiovascular risk of people living with HIV/AIDS (PLWHA) using highly active antiretroviral therapy (HAART). OBJECTIVE: To assess the prevalence of lipodystrophy and changes in lipid and glucose metabolism in PLWHA in use of HAART. METHODS: For the anthropometric evaluation we measured weight, height and abdominal circumference (AC)...
July 2017: Revista Brasileira de Epidemiologia, Brazilian Journal of Epidemiology
https://www.readbyqxmd.com/read/29127275/allogeneic-stem-cell-transplantation-in-fully-mhc-matched-mauritian-cynomolgus-macaques-recapitulates-diverse-human-clinical-outcomes
#16
Benjamin J Burwitz, Helen L Wu, Shaheed Abdulhaqq, Christine Shriver-Munsch, Tonya Swanson, Alfred W Legasse, Katherine B Hammond, Stephanie L Junell, Jason S Reed, Benjamin N Bimber, Justin M Greene, Gabriela M Webb, Mina Northrup, Wolfram Laub, Paul Kievit, Rhonda MacAllister, Michael K Axthelm, Rebecca Ducore, Anne Lewis, Lois M A Colgin, Theodore Hobbs, Lauren D Martin, Betsy Ferguson, Charles R Thomas, Angela Panoskaltsis-Mortari, Gabrielle Meyers, Jeffrey J Stanton, Richard T Maziarz, Jonah B Sacha
Allogeneic hematopoietic stem cell transplantation (HSCT) is a critically important therapy for hematological malignancies, inborn errors of metabolism, and immunodeficiency disorders, yet complications such as graft-vs.-host disease (GvHD) limit survival. Development of anti-GvHD therapies that do not adversely affect susceptibility to infection or graft-vs.-tumor immunity are hampered by the lack of a physiologically relevant, preclinical model of allogeneic HSCT. Here we show a spectrum of diverse clinical HSCT outcomes including primary and secondary graft failure, lethal GvHD, and stable, disease-free full donor engraftment using reduced intensity conditioning and mobilized peripheral blood HSCT in unrelated, fully MHC-matched Mauritian-origin cynomolgus macaques...
November 10, 2017: Nature Communications
https://www.readbyqxmd.com/read/29117238/tdf-and-quantitative-ultrasound-bone-quality-in-african-patients-on-second-line-art-anrs-12169-2lady-sub-study
#17
Firmin Nongodo Kabore, Sabrina Eymard-Duvernay, Jacques Zoungrana, Stéphanie Badiou, Guillaume Bado, Arsène Héma, Assane Diouf, Eric Delaporte, Sinata Koulla-Shiro, Laura Ciaffi, Amandine Cournil
BACKGROUND: Bone demineralization, which leads to osteoporosis and increased fracture risk, is a common metabolic disorder in HIV-infected individuals. In this study, we aimed to assess the change in bone quality using quantitative ultrasound (QUS) over 96 weeks of follow-up after initiation of second-line treatment, and to identify factors associated with change in bone quality. METHODS AND FINDINGS: In a randomized trial (ANRS 12169), TDF and PI-naïve participants failing standard first-line treatment, from Burkina Faso, Cameroon, and Senegal were randomized to receive either TDF/FTC/LPVr, ABC/ddI/LPVr or TDF/FTC/DRVr...
2017: PloS One
https://www.readbyqxmd.com/read/29058550/immunomodulatory-role-of-complement-proteins-in-the-neuropathology-associated-with-opiate-abuse-and-hiv-1-co-morbidity
#18
Supriya D Mahajan, Ravikumar Aalinkeel, Neil U Parikh, Alexander Jacob, Katherine Cwiklinski, Prateet Sandhu, Kevin Le, Alexander W Loftus, Stanley A Schwartz, Richard J Quigg, Jessy J Alexander
The complement system which is a critical mediator of innate immunity plays diverse roles in the neuropathogenesis of HIV-1 infection such as clearing HIV-1 and promoting productive HIV-1 replication. In the development of HIV-1 associated neurological disorders (HAND), there may be an imbalance between complement activation and regulation, which may contribute to the neuronal damage as a consequence of HIV-1 infection. It is well recognized that opiate abuse exacerbates HIV-1 neuropathology, however, little is known about the role of complement proteins in opiate induced neuromodulation, specifically in the presence of co-morbidity such as HIV-1 infection...
November 2017: Immunological Investigations
https://www.readbyqxmd.com/read/28978127/hiv-1-gp120-clade-b-c-induces-a-grp78-driven-cytoprotective-mechanism-in-astrocytoma
#19
Sheila N López, Madeline Rodríguez-Valentín, Mariela Rivera, Maridaliz Rodríguez, Mohan Babu, Luis A Cubano, Huangui Xiong, Guangdi Wang, Lilia Kucheryavykh, Nawal M Boukli
HIV-1 clades are known to be one of the key factors implicated in modulating HIV-associated neurocognitive disorders. HIV-1 B and C clades account for the majority of HIV-1 infections, clade B being the most neuropathogenic. The mechanisms behind HIV-mediated neuropathogenesis remain the subject of active research. We hypothesized that HIV-1 gp120 clade B and C proteins may exert differential proliferation, cell survival and NeuroAIDS effects in human astrocytoma cells via the Unfolded Protein Response, an endoplasmic reticulum- based cytoprotective mechanism...
September 15, 2017: Oncotarget
https://www.readbyqxmd.com/read/28949439/discrimination-of-patients-with-different-serological-evolution-of-hiv-and-co-infection-with-hcv-using-metabolic-fingerprinting-based-on-ft-ir
#20
Consuelo Pizarro, Isabel Esteban-Díez, Irene Arenzana-Rámila, José María González-Sáiz
Human immunodeficiency virus (HIV) is a retrovirus that weakens the immune system and permits opportunistic diseases such as Hepatitis C (HCV) to enter the body. These diseases induce metabolic disorders in the patients and it is therefore logical to approach them from a holistic, functional perspective, studying the metabolome comprehensively to identify metabolic signatures associated with certain disease states. The metabolomics strategy here proposed involves metabolic fingerprinting using Fourier transform infrared spectroscopy and chemometric tools on 72 plasma samples (subdivided into 63 training and 9 test samples) to differentiate between healthy subjects and patients with different disease stages...
September 26, 2017: Journal of Biophotonics
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