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Gilada T, Ulrich AK, Wang Y, Lama JR, Alfaro R, Harb S, Daza G, Holte S, Pasalar S, Rios J, Ganoza C, Dasgupta S, Coombs RW, Duerr A. Viral Load Dynamics in Plasma and Semen When Antiretroviral Therapy Is Initiated During Early HIV-1 Infection. J Infect Dis 2024; 229:1141-1146. [PMID: 38073467 PMCID: PMC11011176 DOI: 10.1093/infdis/jiad520] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 11/13/2023] [Accepted: 11/22/2023] [Indexed: 03/14/2024] Open
Abstract
We assessed human immunodeficiency virus (HIV) load in plasma and semen during primary HIV infection using serial samples of semen and plasma during the first 24 weeks after diagnosis in untreated participants and those who started antiretroviral therapy (ART) immediately at diagnosis. In the absence of treatment, semen viral load was >1000 copies/mL in almost all specimens (83%) collected 2-10 weeks after the estimated date of HIV acquisition and remained >1000 copies/mL in 35% of untreated participants at the last observed time point. Thus, in the absence of ART, semen viral load remained at a level consistent with transmissibility throughout primary infection.
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Affiliation(s)
| | - Angela K Ulrich
- Center for Infectious Disease Research and Policy, University of Minnesota, Minneapolis, Minnesota, USA
- Division of Environmental Health Science, University of Minnesota, Minneapolis, Minnesota, USA
| | - Yixin Wang
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Center, Seattle, Washington, USA
| | - Javier R Lama
- Asociación Civil Impacta Salud y Educación, Lima, Peru
| | - Ricardo Alfaro
- Centro de Investigaciones Tecnológicas Biomédicas y Medioambientales, Lima, Peru
| | - Socorro Harb
- School of Medicine, University of Washington, Seattle, Washington, USA
| | - Glenda Daza
- School of Medicine, University of Washington, Seattle, Washington, USA
| | - Sarah Holte
- Public Health Sciences Division, Fred Hutchinson Cancer Center, Seattle, Washington, USA
- Department of Global Health, University of Washington, Seattle, Washington, USA
- Department of Biostatistics, University of Washington, Seattle, Washington, USA
| | - Siavash Pasalar
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Center, Seattle, Washington, USA
| | - Jessica Rios
- Pharmaceutical Product Development, Inc, Lima, Peru
| | | | - Sayan Dasgupta
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Center, Seattle, Washington, USA
| | - Robert W Coombs
- School of Medicine, University of Washington, Seattle, Washington, USA
| | - Ann Duerr
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Center, Seattle, Washington, USA
- Public Health Sciences Division, Fred Hutchinson Cancer Center, Seattle, Washington, USA
- Department of Global Health, University of Washington, Seattle, Washington, USA
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Shrivastav A, Zhou WS, Ng S, Ding J, Gilada T, Chua CH, Dutt S, Natarajan S, Agrawal R. Choroidal Microvascular Alterations in COVID-19 Patients. Ocul Immunol Inflamm 2023; 31:1122-1127. [PMID: 35413220 DOI: 10.1080/09273948.2022.2062387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Revised: 02/10/2022] [Accepted: 03/31/2022] [Indexed: 10/18/2022]
Abstract
OBJECTIVE To evaluate alterations in the choroidal angioarchitecture of COVID-19 patients using optical Coherence Tomography (OCT) based surrogate markers. METHODS This prospective case-control study recruited 56 COVID-19 patients (111 eyes) and 61 healthy individuals (120 eyes). Choroidal thickness (CT) and Choroidal vascularity index (CVI) were derived from OCT images using a purpose-built automated software for choroidal image segmentation. A linear mixed model with age and gender as covariates was employed to compare CVI and CT between groups. RESULTS COVID-19 patients had significantly higher subfoveal (81.3um vs 86.8um, p = .02), temporal (78.8um vs 84.3um, p = .005), nasal (87.5um vs 95.1um, p = .001) and average CT (82.5um vs 88.7um, p = .001). COVID-19 patients had significantly lower subfoveal (64.0 vs 63.5, p = .02) and average CVI (63.5 vs 63.1, p = .02). CONCLUSION COVID-19 results in significantly thicker choroid with reduced relative vascularity. This may be attributable to increased vascular permeability secondary to inflammation, resulting in choroidal stromal edema.
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Affiliation(s)
| | - Wenting Sandy Zhou
- Khoo Teck Puat Hospital, Ophthalmology &Visual Science, National Health Group Eye Institute, Singapore
| | - Sean Ng
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore
| | - Jianbin Ding
- Department of Ophthalmology, National Healthcare Group Eye Institute, Tan Tock Seng Hospital, Singapore
- Department of General Surgery, Khoo Teck Puat Hospital, National Healthcare Group, Singapore
| | - Trupti Gilada
- Infectious Disease, Masina Hospital, Mumbai, India
- Infectious Diseases, Unison Medicare and Research Centre, Mumbai, India
| | - Chun Hau Chua
- Department of Ophthalmology, National Healthcare Group Eye Institute, Tan Tock Seng Hospital, Singapore
| | - Shibjash Dutt
- Research and development, Radical Health, New Delhi, India
| | | | - Rupesh Agrawal
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore
- Department of Ophthalmology, National Healthcare Group Eye Institute, Tan Tock Seng Hospital, Singapore
- Singapore Eye Research Institute, Singapore National Eye Center, Singapore
- Ophthalmology and Visual Sciences Academic Clinical Program, Duke-NUS Medical School, Singapore
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Gilada T, Schnittman SR, White E, Mercader J, Wang Y, Dasgupta S, Valdez R, Pinto-Santini D, Pasalar S, Sanchez J, Gonzales P, Lama JR, Bender Ignacio R, Duerr A. Immune activation in primary HIV: influence of duration of infection, treatment, and substance use. Open Forum Infect Dis 2022; 9:ofac155. [PMID: 35611350 PMCID: PMC9124591 DOI: 10.1093/ofid/ofac155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Accepted: 03/23/2022] [Indexed: 11/12/2022] Open
Abstract
Background Primary human immunodeficiency virus (HIV) is characterized by dynamic changes in viral load and innate and adaptive immune responses; it is unclear the extent to which time from acquisition to antiretroviral therapy (ART) initiation and substance use impact these immunologic changes. Methods We studied plasma immune activation biomarkers, viral load, and CD4+ and CD8+ cell counts in participants from the Sabes primary infection study in Peru, who had been randomized to begin ART immediately after diagnosis vs 24 weeks later. We modeled influence of substance use and duration of HIV infection on biomarkers at baseline and over 24 weeks. Results Compared to participants enrolled >30 days after HIV acquisition, participants enrolled during acute infection (≤30 days) had higher mean interferon (IFN)–γ and IFN-α2a (1.7-fold and 3.8-fold interquartile range [IQR] higher, respectively). Participants enrolled >30 days after HIV acquisition had higher mean baseline CD8+ cell count (2.7 times the IQR). Alcohol use (positive phosphatidylethanol level) was associated with elevated IFN-γ, tumor necrosis factor alpha (TNF-α), and interleukin 12p70 (IL-12p70), and smoking was associated with higher macrophage inflammatory protein 1α, TNF-α, and IL-12p70. Most biomarkers declined more quickly in participants who initiated ART immediately; however, substance use and duration of HIV infection at enrollment had little influence on rate of decline. Conclusions IFN-γ and other biomarkers are elevated during early primary infection, when exposure to HIV antigens is high. Immune activation decreased most quickly in those who started ART during acute/early primary infection. Higher CD8+ cell counts and a trend toward higher soluble CD163 levels during the 30 days after acquisition suggest the onset of compensatory responses and immune exhaustion.
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Affiliation(s)
| | | | - Edward White
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Jacqueline Mercader
- Department of Laboratory Medicine, University of Washington, Seattle, WA, USA
| | - Yixin Wang
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Sayan Dasgupta
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Rogelio Valdez
- Case Western Reserve School of Medicine, Cleveland, OH, USA
| | - Delia Pinto-Santini
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Siavash Pasalar
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Jorge Sanchez
- Centro de Investigaciones Tecnológicas Biomédicas y Medioambientales – UNMSM, Bellavista, Lima, Peru
| | - Pedro Gonzales
- Asociacion IMPACTA Salud y Educacion, Barranco, Lima, Peru
| | - Javier R Lama
- Asociacion IMPACTA Salud y Educacion, Barranco, Lima, Peru
| | - Rachel Bender Ignacio
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
- Department of Medicine, University of Washington, Seattle, USA
| | - Ann Duerr
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
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Massanella M, Bender Ignacio RA, Lama JR, Pagliuzza A, Dasgupta S, Alfaro R, Rios J, Ganoza C, Pinto-Santini D, Gilada T, Duerr A, Chomont N. Long-term effects of early antiretroviral initiation on HIV reservoir markers: a longitudinal analysis of the MERLIN clinical study. The Lancet Microbe 2021; 2:e198-e209. [PMID: 34841369 PMCID: PMC8622834 DOI: 10.1016/s2666-5247(21)00010-0] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Revised: 12/09/2020] [Accepted: 01/14/2021] [Indexed: 12/29/2022] Open
Abstract
Background Early antiretroviral therapy (ART) initiation (ie, within 3 months of infection) limits establishment of the HIV reservoir. However, the effect of early ART initiation on the long-term dynamics of the pool of infected cells remains unclear. Methods In this longitudinal analysis, we included cisgender men who have sex with men (MSM) and transgender women (aged 18–54 years) at high risk for HIV infection, enrolled in the ongoing longitudinal MERLIN study in Peru between Oct 28, 2014, and Nov 8, 2018. Participants were eligible if they had been infected with HIV less than 90 days before enrolment, and if they had cryopreserved peripheral blood mononuclear cell (PBMC) samples. Participants were stratified into three groups on the basis of whether they initiated ART at 30 days or less (acute group), at 31–90 days (early group), or more than 24 weeks (deferred group) after the estimated date of detectable infection. PBMC samples were collected before ART initiation and longitudinally for up to 4 years on ART. The main outcomes were to establish the size of the HIV reservoir before ART initiation and to assess the effect of the timing of ART initiation on the decay of the HIV reservoir over 4 years follow-up. We quantified viral load, and isolated CD4 cells to quantify total HIV DNA, integrated HIV DNA and 2-long terminal repeat circles. Longitudinal analysis of active and inducible HIV reservoirs were measured by quantifying the frequency of CD4 cells producing multiply-spliced HIV RNA ex vivo and after in-vitro stimulation with a tat/rev induced limiting dilution assay (TILDA). A mixed-effects model from the time of ART initiation was used to measure longitudinal decays in viral loads and each HIV reservoir measure in each of the three groups. Findings We included 56 participants in this analysis, all of whom were MSM: 15 were in the acute group, 19 were in the early group, and 22 were in the deferred group. Participants in all three groups had similar levels of all HIV reservoir markers before ART initiation. All participants, including those in the acute group, had a pool of transcriptionally silent HIV-infected cells before ART initiation, as indicated by a substantial increase in TILDA measures upon stimulation. Longitudinal analysis over 4 years of ART revealed a biphasic decay of all HIV persistence markers, with a rapid initial decline followed by a slower decay in all participants. During the first-phase decay, the half-lives of both total and integrated HIV DNA and TILDA measures were significantly shorter in the acute group than in the early and deferred groups. During the second-phase decay, HIV reservoir markers continued to decline only in participants in the acute group. Interpretation Participants who initiated ART within 30 days or less of HIV infection showed a steeper and more sustained decay in HIV reservoir measures, suggesting long-term benefit of acute ART initiation on reservoir clearance. Funding The US National Institutes of Health and the Canadian Institutes for Health Research.
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Trebelcock WL, Lama JR, Duerr A, Sanchez H, Cabello R, Gilada T, Segura P, Reisner SL, Mayer KH, Mullins J, Bender Ignacio RA. HIV pretreatment drug resistance among cisgender MSM and transgender women from Lima, Peru. J Int AIDS Soc 2019; 22:e25411. [PMID: 31773888 PMCID: PMC6880186 DOI: 10.1002/jia2.25411] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Accepted: 10/16/2019] [Indexed: 12/29/2022] Open
Abstract
INTRODUCTION Transmitted, or any pretreatment drug resistance (TDR, PDR) can compromise efficacy of first-line antiretroviral therapy (ART). In Peru, genotypic resistance testing is not routinely performed before ART initiation, and estimated PDR prevalence prior to 2012 ranged from 1.0% to 4.7%. We aimed to update estimates of PDR prevalence in men who have sex with men (cis-MSM) and transgender women (TW). METHODS We obtained HIV sequences from three studies of ART-naïve cisgender-MSM and TW (n = 470) in Lima, Peru from 2013 to 2017, almost two-thirds of whom had acute or recent infections. Sanger sequences of HIV pol were interrogated for surveillance drug resistance mutations (SDRM) using the Stanford Calibrated Population Resistance (CPR) tool and scored for resistance to nucleoside reverse transcriptase inhibitors (NRTIs) and non-nucleoside reverse transcriptase inhibitors (NNRTIs) with the HIVdb programme. We calculated binomial proportions and 95% confidence intervals. χ2 and exact or trend tests were used to examine predictors of PDR. RESULTS Seventy-seven (16.4%) individuals had PDR (95% CI: 13.2 to 20.0); most resistance was likely TDR since 63% were incident infections. SDRM were present in 9.8% (7.3 to 12.9). Resistance to any NRTI was present in <1% of individuals, while efavirenz resistance was present in 10% (6.9% to 12.4%). TW were not statistically more likely than cis-MSM to have PDR (11.4% vs. 9.1%, p = 0.54). Age, incident versus prevalent infection, or residence district did not predict PDR. Prevalence of SDRM increased from 3% in 2013 to 21% 2017 within incident infections (p = 0.04), but not when including prevalent infections. CONCLUSIONS Prevalence of NNRTI resistance in three studies of ART-naïve MSM and TW in Lima, Peru reaches 10%. Because our study reports PDR in a population in which most acquired HIV recently, the overall prevalence of PDR, including previously treated persons, is likely underestimated. These results underscore the need for a nationally representative survey of PDR in Peru and consideration of non-NNRTI anchored first-line ART options. This study also represents the first evaluation of PDR in cis-MSM versus TW in South America, and demonstrates that, although TW are at higher risk of acquiring HIV, they are at similar risk of acquiring a virus with resistance mutations.
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Affiliation(s)
| | | | - Ann Duerr
- University of WashingtonSeattleWAUSA
- Fred Hutchinson Cancer Research CenterSeattleWAUSA
| | | | | | - Trupti Gilada
- Fred Hutchinson Cancer Research CenterSeattleWAUSA
- Unison Medicare and Research CentreMumbaiIndia
| | | | - Sari L Reisner
- Harvard UniversityBostonMAUSA
- The Fenway InstituteBostonMAUSA
| | - Kenneth H Mayer
- Harvard UniversityBostonMAUSA
- The Fenway InstituteBostonMAUSA
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Chang YM, Sevekari T, Duerr A, Molina Y, Gilada T. HIV self-testing in Pune, India: perspectives and recommendations of female sex workers and peer educators. AIDS Care 2019; 32:182-185. [PMID: 31672026 DOI: 10.1080/09540121.2019.1683804] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Female sex workers (FSW) represent a focal point of the HIV epidemic in India. HIV self-testing (HIVST) could mitigate under-diagnosis of HIV and reduce disease transmission in this population. This study assessed the acceptability of HIVST through focus group discussions (FGD) with FSW. FSW expressed willingness to use HIVST and preference for saliva-based HIVST over blood-based HIVST and preferred that HIVST education, administration, and storage take place in trusted community centers and not in brothels. We provide preliminary recommendations for the implementation of an acceptable and feasible HIVST program for FSW in India.
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Affiliation(s)
- Yanni M Chang
- School of Medicine, University of Washington, Seattle, WA, USA
| | | | - Ann Duerr
- School of Medicine, University of Washington, Seattle, WA, USA.,Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Yamilé Molina
- Community Health Sciences Division, University of Illinois at Chicago, Chicago, IL, USA
| | - Trupti Gilada
- Fred Hutchinson Cancer Research Center, Seattle, WA, USA
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