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HIV and Inflammation

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https://www.readbyqxmd.com/read/28431490/new-challenges-in-therapeutic-vaccines-against-hiv-infection
#1
Lorna Leal, Constanza Lucero, Josep M Gatell, Teresa Gallart, Montserrat Plana, Felipe García
There is a growing interest in developing curative strategies for HIV infection. Therapeutic vaccines are one of the most promising approaches. We will review the current knowledge and the new challenges in this research field. Areas covered: PubMed and ClinicalTrial.gov databases were searched to review the progress and prospects for clinical development of immunotherapies aimed to cure HIV infection. Dendritic cells (DC)-based vaccines have yielded the best results in the field. However, major immune-virologic barriers may hamper current vaccine strategies...
April 21, 2017: Expert Review of Vaccines
https://www.readbyqxmd.com/read/28429127/uveitis-in-siriraj-hospital-pattern-differences-between-immune-related-uveitis-and-infectious-uveitis-in-a-university-based-tertiary-care-hospital
#2
Nattaporn Tesavibul, Sutasinee Boonsopon, Pitipol Choopong, Sujintana Tanterdtham
PURPOSE: To describe a proportion of uveitis and to analyse differences between immune-related uveitis and infectious uveitis groups. METHODS: A retrospective study of 458 uveitis patients were categorized into immune-related uveitis, infectious uveitis, masquerade, and undetermined groups. The pattern of inflammation was described. Subgroup analysis was performed to compare pattern differences between immune-related uveitis and infectious uveitis groups. RESULTS: The most common location of inflammation was the anterior eye segment...
April 20, 2017: International Ophthalmology
https://www.readbyqxmd.com/read/28427967/mechanisms-underlying-hiv-associated-non-infectious-lung-disease
#3
REVIEW
Rachel M Presti, Sonia C Flores, Brent E Palmer, Jeffrey J Atkinson, Catherine R Lesko, Bryan Lau, Andrew P Fontenot, Jesse Roman, John F McDyer, Homer L Twigg
Pulmonary disease remains a primary source of morbidity and mortality in persons living with HIV (PLWH), although the advent of potent combination antiretroviral therapy (cART) has resulted in a shift from predominantly infectious to noninfectious pulmonary complications. PLWH are at high risk for chronic obstructive pulmonary disease, pulmonary hypertension, and lung cancer even in the era of cART. The underlying mechanisms of this are incompletely understood, but recent research in both human and animal models suggest that oxidative stress, expression of matrix metalloproteinases, and genetic instability may result in lung damage which predisposes PLWH to these conditions...
April 17, 2017: Chest
https://www.readbyqxmd.com/read/28426825/levels-of-hiv-1-persistence-on-antiretroviral-therapy-are-not-associated-with-markers-of-inflammation-or-activation
#4
Rajesh T Gandhi, Deborah K McMahon, Ronald J Bosch, Christina M Lalama, Joshua C Cyktor, Bernard J Macatangay, Charles R Rinaldo, Sharon A Riddler, Evelyn Hogg, Catherine Godfrey, Ann C Collier, Joseph J Eron, John W Mellors
Antiretroviral therapy (ART) reduces levels of HIV-1 and immune activation but both can persist despite clinically effective ART. The relationships among pre-ART and on-ART levels of HIV-1 and activation are incompletely understood, in part because prior studies have been small or cross-sectional. To address these limitations, we evaluated measures of HIV-1 persistence, inflammation, T cell activation and T cell cycling in a longitudinal cohort of 101 participants who initiated ART and had well-documented sustained suppression of plasma viremia for a median of 7 years...
April 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28419368/leukotriene-a4-hydrolase-genotype-and-hiv-infection-influence-intracerebral-inflammation-and-survival-from-tuberculous-meningitis
#5
Nguyen T T Thuong, Dorothee Heemskerk, Trinh T B Tram, Le T P Thao, Lalita Ramakrishnan, Vu T N Ha, Nguyen D Bang, Tran T H Chau, Nguyen H Lan, Maxine Caws, Sarah J Dunstan, Nguyen V V Chau, Marcel Wolbers, Nguyen T H Mai, Guy E Thwaites
Background.: Tuberculous meningitis (TBM) is the most devastating form of tuberculosis, yet very little is known about the pathophysiology. We hypothesized that the genotype of leukotriene A4 hydrolase (encoded by LTA4H), which determines inflammatory eicosanoid expression, influences intracerebral inflammation, and predicts survival from TBM. Methods.: We characterized the pretreatment clinical and intracerebral inflammatory phenotype and 9-month survival of 764 adults with TBM...
April 17, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28419315/clinical-parameters-routine-inflammatory-markers-and-lta4h-genotype-as-predictors-of-mortality-among-608-patients-with-tuberculous-meningitis-in-indonesia
#6
Arjan van Laarhoven, Sofiati Dian, Carolien Ruesen, Ela Hayati, Michelle S M A Damen, Jessi Annisa, Lidya Chaidir, Rovina Ruslami, Tri Hanggono Achmad, Mihai G Netea, Bachti Alisjahbana, Ahmad Rizal Ganiem, Reinout van Crevel
Background.: Damaging inflammation is thought to contribute to the high morbidity and mortality of tuberculous meningitis (TBM), but the link between inflammation and outcome remains unclear. Methods.: We performed prospective clinical and routine laboratory analyses of a cohort of adult patients with TBM in Indonesia. We also examined the LTA4H promoter polymorphism, which predicted cerebrospinal fluid (CSF) leukocyte count and survival of Vietnamese patients with TBM...
April 17, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28416296/hiv-infection-and-aortic-stiffness
#7
REVIEW
Luisa Helena Maia Leite, Ariel Cohen, Franck Boccara
People living with human immunodeficiency virus (HIV) infection and receiving antiretroviral therapy now have the same life expectancy as the general population. However, they have a higher risk of atherosclerotic cardiovascular events because of a complex and polyfactorial vasculopathy, combining the effects of antiretroviral therapy, the HIV virus itself, immune activation, chronic inflammation and metabolic disturbances. Whether people living with HIV infection experience increased vascular aging compared with the general population remains controversial...
April 14, 2017: Archives of Cardiovascular Diseases
https://www.readbyqxmd.com/read/28414677/a-rare-case-of-tropical-pyomysitis-acquired-on-vacation-in-a-healthy-male
#8
K Poole, T Tran
INTRODUCTION: Pyomyositis has traditionally been considered a tropical disease. Increasing prevalence has been observed in more northern climates, especially with HIV, immunosuppression, and IV drug abuse as predisposing factors. Pyomyositis has the tendency to mimic other conditions, such as muscle contusion, necrotizing fasciitis, or septic arthritis. The rarity of this disease and non-specificity of its symptoms often lead to delay in appropriate diagnosis and treatment. CASE: 24-year-old man, seen 2 days prior in orthopedics clinic and the Emergency Department for persistent gluteal pain thought to be due to right-sided sciatica, was admitted following worsening pain, diffuse generalized weakness with polyarthralgias and myalgias These symptoms were associated with night sweats, shaking chills, and difficulty walking...
March 2017: Journal of the Louisiana State Medical Society: Official Organ of the Louisiana State Medical Society
https://www.readbyqxmd.com/read/28414665/a-case-of-early-neurosyphilis
#9
M Walker, R Wisler, J Simmons, A Johnson
INTRODUCTION: Neurosyphilis is an infection of the central nervous system by Treponema pallidum, which can occur after the initial syphilis infection. Although commonly associated with late stage disease, patients with early neurosyphilis may present with acute syphilitic meningitis, meningovascular syphilis, or uveitis. CASE: A 28 year old man with a past medical history of HIV (CD4 364);, and recent diagnosis of uveitis presented to the Emergency Department with a positive RPR result...
March 2017: Journal of the Louisiana State Medical Society: Official Organ of the Louisiana State Medical Society
https://www.readbyqxmd.com/read/28413625/hiv-associated-neurocognitive-disorders-recent-advances-in-pathogenesis-biomarkers-and-treatment
#10
REVIEW
Antonia Carroll, Bruce Brew
HIV-associated neurocognitive disorders (HAND) remain prevalent despite plasma viral suppression by antiretroviral agents. In fact, the prevalence of milder subtypes of cognitive impairment is increasing. Neuropsychologic testing remains the "gold standard" of diagnosis; however, this is time consuming and costly in a resource-poor environment. Recently developed screening tools, such as CogState and the revised HIV dementia scale, have very good sensitivity and specificity in the more severe stages of HAND...
2017: F1000Research
https://www.readbyqxmd.com/read/28402927/hepatitis-c-virus-inflammation-and-cellular-aging-turning-back-time
#11
Susanna Naggie
There is evidence that hepatitis C virus (HCV) infection, like HIV infection, may be associated with chronic inflammation, immune activation, and immune senescence, which contribute to increased risks for cardiometabolic or other diseases outside the liver, as well as to ongoing damage in the liver. These effects may persist after a sustained virologic response (SVR) is achieved with HCV therapy. Such findings support initiation of treatment for HCV-infected individuals before damage to the liver is apparent and monitoring of individuals for complications even after an SVR is achieved...
February 2017: Topics in Antiviral Medicine
https://www.readbyqxmd.com/read/28402442/risk-of-heterosexual-hiv-transmission-attributable-to-sexually-transmitted-infections-and-non-specific-genital-inflammation-in-zambian-discordant-couples-1994-2012
#12
Kristin M Wall, William Kilembe, Bellington Vwalika, Lisa B Haddad, Eric Hunter, Shabir Lakhi, Roy Chavuma, Naw Htee Khu, Ilene Brill, Cheswa Vwalika, Lawrence Mwananyanda, Elwyn Chomba, Joseph Mulenga, Amanda Tichacek, Susan Allen
Background: Studies have demonstrated the role of ulcerative and non-ulcerative sexually transmitted infections (STI) in HIV transmission/acquisition risk; less is understood about the role of non-specific inflammatory genital abnormalities. Methods: HIV-discordant heterosexual Zambian couples were enrolled into longitudinal follow-up (1994-2012). Multivariable models estimated the effect of genital ulcers and inflammation in both partners on time-to-HIV transmission within the couple...
April 11, 2017: International Journal of Epidemiology
https://www.readbyqxmd.com/read/28401934/vaginal-lactic-acid-elicits-an-anti-inflammatory-response-from-human-cervicovaginal-epithelial-cells-and-inhibits-production-of-pro-inflammatory-mediators-associated-with-hiv-acquisition
#13
A C Hearps, D Tyssen, D Srbinovski, L Bayigga, D J D Diaz, M Aldunate, R A Cone, R Gugasyan, D J Anderson, G Tachedjian
Inflammation in the female reproductive tract (FRT) is associated with increased HIV transmission. Lactobacillus spp. dominate the vaginal microbiota of many women and their presence is associated with reduced HIV acquisition. Here we demonstrate that lactic acid (LA), a major organic acid metabolite produced by lactobacilli, mediates anti-inflammatory effects on human cervicovaginal epithelial cells. Treatment of human vaginal and cervical epithelial cell lines with LA (pH 3.9) elicited significant increases in the production of the anti-inflammatory cytokine IL-1RA...
April 12, 2017: Mucosal Immunology
https://www.readbyqxmd.com/read/28399347/conjunctival-tumors-review-of-clinical-features-risks-biomarkers-and-outcomes-the-2017-j-donald-m-gass-lecture
#14
Carol L Shields, Jason L Chien, Thamolwan Surakiatchanukul, Kareem Sioufi, Sara E Lally, Jerry A Shields
Conjunctival tumors encompass a broad range of diagnoses. The 3 most important malignant tumors include ocular surface squamous neoplasia (OSSN) (14%), melanoma (12%), and lymphoma (7%). Conjunctival malignancies are rarely found in children. Regarding OSSN, pre-disposing conditions include chronic solar radiation, immune deficiency (HIV), organ transplant, autoimmune conditions, xeroderma pigmentosum, and chronic exposure to cigarette smoke. OSSN is managed surgically or with topical/injection immunotherapy or chemotherapy...
March 2017: Asia-Pacific Journal of Ophthalmology
https://www.readbyqxmd.com/read/28398956/informatic-interrogation-of-csf-proteomic-profiles-from-hiv-infected-subjects-implicates-acute-phase-and-complement-systems-in-shifting-cognitive-status
#15
Ceereena Ubaida-Mohien, Benjamin Lamberty, Alex M Dickens, Michelle M Mielke, Thomas Marcotte, Ned Sacktor, Igor Grant, Scott Letendre, D Franklin, Pawel Cibrowski, Ravi Tharakan, Justin C McArthur, Howard Fox, Norman J Haughey
The prevalence of HIV-Associated Neurocognitive Disorders (HAND) has not changed considerably in the last two decades. Potent antiretroviral therapy (ART) has shifted the severity of HAND to milder phenotypes, but excess morbidity and mortality continue to be associated with HAND. Changes in numerous markers of immune function, inflammation and cellular stress have been repeatedly associated with HAND but the underlying systems that drive these changes have not been identified. In this study we used systems informatics to interrogate the CSF proteomic content of longitudinal samples obtained from HIV-infected adults with stably unimpaired, stably impaired, worsening, or improving neurocognitive (NC) performance...
April 10, 2017: AIDS
https://www.readbyqxmd.com/read/28398593/ccr5-expression-haplotype-and-immune-activation-in-protection-from-infection-in-hiv-exposed-uninfected-individuals-in-hiv-serodiscordant-relationships
#16
Shameem Z Jaumdally, Anabela Picton, Caroline T Tiemessen, Maria Paximadis, Heather B Jaspan, Hoyam Gamieldien, Lindi Masson, David Coetzee, Anna-Lise Williamson, Francesca Little, Pamela P Gumbi, Jo-Ann S Passmore
BACKGROUND: Several host factors have been implicated in resistance to HIV infection in individuals who remain HIV-seronegative despite exposure. In a cohort of HIV-serodiscordant heterosexual couples, we investigated interactions between systemic inflammation and T-cell activation in resistance to HIV infection. METHODS: Males and females in stable long-term relationships with either HIV-infected or uninfected partners were recruited, blood T-cell activation (CD38, HLA-DR, CCR5 and Ki67) and plasma cytokine concentrations were evaluated...
April 11, 2017: Immunology
https://www.readbyqxmd.com/read/28397248/porphyromonas-gingivalis-antibody-levels-and-diagnosis-of-coronary-artery-disease-in-hiv-positive-individuals
#17
V L Berquist, A C Hearps, P Ford, A Jaworowski, S J Leishman, J F Hoy, J M Trevillyan
BACKGROUND AND OBJECTIVE: Periodontal disease has been associated with cardiovascular disease in the general population. It is unknown whether IgG antibody levels for periodontal pathogens are associated with the diagnosis of coronary artery disease (CAD) in HIV-positive individuals. MATERIAL AND METHODS: Twenty-four HIV-positive individuals (cases) with stored plasma available in the 12 months before CAD diagnosis were age- and sex-matched 1:2 with 46 HIV-positive individuals without CAD (controls)...
April 10, 2017: Journal of Periodontal Research
https://www.readbyqxmd.com/read/28397245/interactions-between-integrase-inhibitors-and-human-arginase-1
#18
Lucia Lisi, Michela Pizzoferrato, Fabiola Teresa Miscioscia, Alessandra Topai, Pierluigi Navarra
The neuro-pathogenic mechanism(s) underlying HIV-associated neurocognitive disorders are mostly unknown. HIV-infected macrophages and microglial cells play a crucial role and the metabolic fate of L-arginine may be highly relevant for microglia activation. In this context Arginase (ARG), which uses L-arginine as substrate, can be on the same time a target and source of oxidative stress and inflammation. In the present study, we investigated whether Integrase Strand Transfer Inhibitors (INSTIs) share with the other antiretroviral drugs the ability to inhibit ARG activity...
April 11, 2017: Journal of Neurochemistry
https://www.readbyqxmd.com/read/28391912/effects-of-atorvastatin-on-biomarkers-of-immune-activation-inflammation-and-lipids-in-virologically-suppressed-human-immunodeficiency-virus-1-infected-individuals-with-low-density-lipoprotein-cholesterol-130%C3%A2-mg-dl-aids-clinical-trials-group-study-a5275
#19
Daniel E Nixon, Ronald J Bosch, Ellen S Chan, Nicholas T Funderburg, Sally Hodder, Jordan E Lake, Michael M Lederman, Karin L Klingman, Judith A Aberg
BACKGROUND: Persistent immune activation and inflammation in virologically suppressed human immunodeficiency virus (HIV) infection are linked to excess cardiovascular risk. OBJECTIVE: To evaluate atorvastatin as a strategy to reduce cardiovascular risk. METHODS: A5275 was a multicenter, prospective, randomized, double-blind, placebo-controlled, cross-over pilot study of atorvastatin (10 mg/day for 4 weeks then 20 mg/day for 16 weeks) with a planned enrollment of 97 HIV-infected participants ≥18 years old, receiving boosted protease inhibitor-based antiretroviral therapy for ≥6 months, with plasma HIV-1 RNAs below limits of quantification ≥180 days, and fasting low-density lipoprotein (LDL) cholesterol ≥70 and <130 mg/dL...
January 2017: Journal of Clinical Lipidology
https://www.readbyqxmd.com/read/28388647/impact-of-probiotic-saccharomyces-boulardii-on-the-gut-microbiome-composition-in-hiv-treated-patients-a-double-blind-randomised-placebo-controlled-trial
#20
Judit Villar-García, Robert Güerri-Fernández, Andrés Moya, Alicia González, Juan J Hernández, Elisabet Lerma, Ana Guelar, Luisa Sorli, Juan P Horcajada, Alejandro Artacho, Giuseppe D Auria, Hernando Knobel
Dysbalance in gut microbiota has been linked to increased microbial translocation, leading to chronic inflammation in HIV-patients, even under effective HAART. Moreover, microbial translocation is associated with insufficient reconstitution of CD4+T cells, and contributes to the pathogenesis of immunologic non-response. In a double-blind, randomised, placebo-controlled trial, we recently showed that, compared to placebo, 12 weeks treatment with probiotic Saccharomyces boulardii significantly reduced plasma levels of bacterial translocation (Lipopolysaccharide-binding protein or LBP) and systemic inflammation (IL-6) in 44 HIV virologically suppressed patients, half of whom (n = 22) had immunologic non-response to antiretroviral therapy (<270 CD4+Tcells/μL despite long-term suppressed viral load)...
2017: PloS One
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