scholarly journals Effects of Tobacco Usage and Antiretroviral Therapy on Biomarkers of Systemic Immune Activation in HIV-Infected Participants

2018 ◽  
Vol 2018 ◽  
pp. 1-10 ◽  
Author(s):  
Helen C. Steel ◽  
W. D. Francois Venter ◽  
Annette J. Theron ◽  
Ronald Anderson ◽  
Charles Feldman ◽  
...  
Keyword(s):  
Antiretroviral Therapy ◽  
Hiv Infection ◽  
Systemic Inflammation ◽  
Cyclophilin A ◽  
Serum Cotinine ◽  
Reactive Protein ◽  
Proinflammatory Activity ◽  
The Impact ◽  
Metalloproteinase 9 ◽  
Tobacco Usage

Like HIV infection, smoking, which is common among HIV-infected persons, is associated with chronic, systemic inflammation. However, the possible augmentative effects of HIV infection and smoking and other types of tobacco usage on indices of systemic inflammation and the impact of combination antiretroviral therapy (cART) thereon remain largely unexplored and represent the focus of the current study. Of the total number of HIV-infected persons recruited to the study (n=199), 100 were categorised as pre-cART and 99 as virally suppressed (HIV viral load<40 copies/mL). According to serum cotinine levels, 144 and 55 participants were categorised as nonusers and users of tobacco, respectively. In addition to cytokines (IL-6, IL-8, and TNF-α) and chemokines (IP-10, MIG, IL-8, MCP-1, and RANTES), other biomarkers of systemic inflammation included C-reactive protein (CRP), β2-microglobulin, and those of neutrophil activation [ICAM-1, L-selectin, matrix metalloproteinase-9 (MMP-9)], microbial translocation (soluble CD14, LPS-binding protein), and oxidative stress (cyclophilin A, surfactant D). These were measured using multiplex bead array, ELISA, and immunonephelometric procedures. Viral suppression was associated with significant decreases in the levels of most of the biomarkers tested (P<0.0037-0.0008), with the exceptions of CRP, cyclophilin A, and MMP-9. With respect to tobacco usage, irrespective of cART status, circulating levels of β2-microglobulin, cyclophilin A, and RANTES were significantly elevated (P<0.042-0.012) in users vs nonusers. Additional analysis of the groups of tobacco users and nonusers according to cART status revealed high levels of RANTES in pre-cART/tobacco users relative to the three other subgroups (P<0.004-0.0001), while more modest increases in cyclophilin A and MMP-9 (P<0.019-0.027) were observed in comparison with the cART/tobacco user subgroup. Notwithstanding the efficacy of cART in attenuating HIV-associated, chronic systemic inflammation, the current study has identified RANTES as being significantly and seemingly selectively increased in those with active HIV infection who use tobacco, a mechanism which may underpin augmentative proinflammatory activity.

scholarly journals Exploring the impact of HIV infection and antiretroviral therapy on placenta morphology

Placenta ◽  
2021 ◽  
Vol 104 ◽  
pp. 102-109
Author(s):  
Michael Yampolsky ◽  
Oleksandr Shlakhter ◽  
Dianna Deng ◽  
Smriti Kala ◽  
Sharon L. Walmsley ◽  
...  
Keyword(s):  
Antiretroviral Therapy ◽  
Hiv Infection ◽  
The Impact

scholarly journals Impact of Matrix Metalloproteinase-9 during Periodontitis and Cardiovascular Diseases

Molecules ◽  
2021 ◽  
Vol 26 (6) ◽  
pp. 1777
Author(s):  
Gaetano Isola ◽  
Alessandro Polizzi ◽  
Vincenzo Ronsivalle ◽  
Angela Alibrandi ◽  
Giuseppe Palazzo ◽  
...  
Keyword(s):  
Matrix Metalloproteinase ◽  
Healthy Subjects ◽  
Multivariate Regression Analysis ◽  
Matrix Metalloproteinase 9 ◽  
C Reactive Protein ◽  
Reactive Protein ◽  
Hs Crp ◽  
The Impact ◽  
Negative Predictor ◽  
Metalloproteinase 9

Matrix metalloproteinase-9 (MMP-9) has been shown to play a key role in endothelial function and perhaps pivotal in the correlation between periodontal disease and cardiovascular disease (CVD). For the study, the impact of MMP-9 of periodontitis and CVD on serum and saliva concentrations was analyzed. For the study patients with periodontitis (n = 31), CVD (n = 31), periodontitis + CVD (n = 31), and healthy patients (n = 31) were enrolled. Clinical and demographic characteristics as well as serum and salivary MMP-9 were evaluated. MMP-9 concentrations in serum and saliva were statistically elevated in patients with CVD (p < 0.01) and in patients with periodontitis plus CVD (p < 0.001) compared to patients with periodontitis and healthy subjects. Multivariate regression analysis showed that c-reactive protein (hs-CRP) was the only significant predictor for MMP-9 serum (p < 0.001), whereas hs-CRP (p < 0.001) and total cholesterol (p = 0.029) were the statistically significant salivary MMP-9 predictors. This study evidenced that patients with CVD and periodontitis + CVD presented elevated MMP-9 concentrations in serum and saliva compared to patients with periodontitis and healthy subjects. Furthermore, hs-CRP was a negative predictor of serum and salivary MMP-9.

scholarly journals A New Perspective on HIV Diagnostics: Reinterpretation in the Age of Early Treatment

2019 ◽  
Vol 57 (10) ◽  
Author(s):  
Sheila M. Keating
Keyword(s):  
Antiretroviral Therapy ◽  
Hiv Infection ◽  
Viral Replication ◽  
Early Treatment ◽  
Clinical Microbiology ◽  
Link Type ◽  
New Perspective ◽  
Hiv Diagnostics ◽  
The Impact

ABSTRACT Early treatment of HIV infection with antiretroviral therapy in recently identified HIV-infected individuals reduces viral replication and decreases the risk of transmission. The screening and supplemental, confirmatory assays used to identify infection are influenced by early treatment and may obscure a clear diagnosis of HIV infection. In this issue of the Journal of Clinical Microbiology, Manak et al. demonstrate the impact of antiretroviral therapy on the evolution of biomarkers that have traditionally been used for identifying HIV infection (M. M. Manak, L. L. Jagodzinski, A. Shutt, J. A. Malia, et al., J Clin Microbiol 57:e00757-19, 2019, https://doi.org/10.1128/JCM.00757-19).

scholarly journals Contribution of HIV Infection, AIDS, and Antiretroviral Therapy to Exocrine Pathogenesis in Salivary and Lacrimal Glands

2018 ◽  
Vol 19 (9) ◽  
pp. 2747 ◽  
Author(s):  
Imran Nizamuddin ◽  
Peter Koulen ◽  
Carole McArthur
Keyword(s):  
Antiretroviral Therapy ◽  
Hiv Infection ◽  
Immune Deficiency Syndrome ◽  
Deficiency Syndrome ◽  
Exocrine Function ◽  
Lacrimal Glands ◽  
Immunodeficiency Virus ◽  
And Function ◽  
The Impact

The structure and function of exocrine glands are negatively affected by human immunodeficiency virus (HIV) infection and its co-morbidities, including innate and adaptive immune responses. At the same time, exocrine function may also be influenced by pharmacotherapies directed at the infectious agents. Here, we briefly review the role of the salivary glands and lacrimal glands in normal physiology and exocrine pathogenesis within the context of HIV infection and acquired immune deficiency syndrome (AIDS), including the contribution of antiretroviral therapies on both. Subsequently, we discuss the impact of HIV infection and the types of antiretroviral therapy on disease management and therapy development efforts.

scholarly journals B cells in early and chronic HIV infection: evidence for preservation of immune function associated with early initiation of antiretroviral therapy

Blood ◽  
2010 ◽  
Vol 116 (25) ◽  
pp. 5571-5579 ◽  
Author(s):  
Susan Moir ◽  
Clarisa M. Buckner ◽  
Jason Ho ◽  
Wei Wang ◽  
Jenny Chen ◽  
...  
Keyword(s):  
B Cells ◽  
Antiretroviral Therapy ◽  
Hiv Infection ◽  
B Cell ◽  
Immune Cell ◽  
Memory B Cells ◽  
Early Initiation ◽  
Cell Counts ◽  
The Impact ◽  
Chronic Hiv Infection

Abstract Characterization of lymphocytes including B cells during early versus chronic HIV infection is important for understanding the impact of chronic viremia on immune cell function. In this setting, we investigated B cells before and after reduction of HIV plasma viremia by antiretroviral therapy (ART). At baseline, peripheral blood B-cell counts were significantly lower in both early and chronic HIV-infected individuals compared with uninfected controls. Similar to CD4+ but not CD8+ T cells, B-cell numbers in both groups increased significantly after ART. At baseline, B cells of early HIV-infected individuals were composed of a higher percentage of plasmablasts and resting memory B cells compared with chronic HIV-infected individuals whose B cells were composed of a higher percentage of immature/transitional and exhausted B cells compared with their early infection counterparts. At 1 year after ART, the percentage of resting memory B cells remained higher in early compared with chronic HIV-infected individuals. This difference translated into a better functional profile in that memory B-cell responses to HIV and non-HIV antigens were superior in early- compared with chronic-treated HIV infected individuals. These findings provide new insights on B cells in HIV infection and how early initiation of ART may prevent irreversible immune system damage.

The impact of HIV infection and antiretroviral therapy on the predicted risk of Down syndrome

2013 ◽  
Vol 34 (2) ◽  
pp. 121-127 ◽  
Author(s):  
Thomas G. Charlton ◽  
Jamie M. Franklin ◽  
Melanie Douglas ◽  
Charlotte E. Short ◽  
Ian Mills ◽  
...  
Keyword(s):  
Down Syndrome ◽  
Antiretroviral Therapy ◽  
Hiv Infection ◽  
The Impact ◽  
Predicted Risk

scholarly journals PROGNOSTIC INDICES AND MARKERS OF SYSTEMIC INFLAMMATION IN PATIENTS WITH COPD AND CAD

2017 ◽  
pp. 81-85
Author(s):  
G. L. IGNATOVA ◽  
V. N. ANTONOV
Keyword(s):  
Systemic Inflammation ◽  
Prognostic Markers ◽  
Functional Disorders ◽  
Inflammation Markers ◽  
C Reactive Protein ◽  
Reactive Protein ◽  
Male Patients ◽  
The Impact ◽  
The Relationship

The article discusses the problem of COPD combined with CAD, determination of inflammatory markers and the prognostic BODE, DOSE and ADO indices. The aim of the study was to evaluate the effect of PCV13 immunization on clinical and functional manifestations of systemic inflammation in patients with COPD and CAD, as well as the relationship with the prognostic markers. Material and methods: The study included 36 male patients with COPD and 36 patients with COPD and CAD, FC II-III stable angina who were treated at Regional Clinical Hospital _4 in Chelyabinsk during the period 2015--2016. Conclusions: 1. Patients with COPD combined with CAD had statistically significant clinical and functional disorders manifested by an increase in the degree of dyspnea and reduction in FEV1. 2. In patients with COPD concomitant with CAD, against the background of the comorbidities, the levels of systemic inflammation markers — C-reactive protein, fibrinogen and procalcitonin — were more overt than in patients only with COPD. 3. Monitoring changes in procalcitonin levels could be used as an additional highly informative method for estimating the probability of the presence of bacterial inflammation and effectiveness of therapy. 4. The prognostic BODE, DOSE and ADO indices tend to decrease unidirectionally under the impact of vaccination with pneumococcal conjugate vaccine. 5. PCV13 can reduce the level of systemic inflammation within 1 year after its application.

Malignancies in HIV

2019 ◽  
pp. 337-378
Author(s):  
Eva Clark ◽  
Elizabeth Chiao
Keyword(s):  
Antiretroviral Therapy ◽  
Hiv Infection ◽  
Kaposi's Sarcoma ◽  
Kaposi’S Sarcoma ◽  
Human Herpes ◽  
Human Herpes Virus 8 ◽  
Human Herpes Virus ◽  
Herpès Virus ◽  
The Impact

• Review the epidemiology and role of antiretroviral therapy (ART) on the impact of AIDS-defining malignancies, which remain common among individuals with HIV. • Discuss the role of human herpes virus-8 (HHV-8) in the development of Kaposi’s sarcoma (KS), which remains the most common tumor associated with HIV infection....

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