HIV Risk and Interest in Preexposure Prophylaxis in Justice-Involved Persons.

Preexposure prophylaxis (PrEP) is underused in persons who use drugs and justice-involved persons. In an ongoing randomized controlled trial in 4 US locations comparing patient navigation versus mobile health unit on time to initiation of HIV medication or PrEP for justice-involved persons who use stimulants or opioids and who are at risk for or living with HIV, we assessed HIV risk factors, perceived HIV risk, and interest in PrEP. Participants without HIV (n = 195) were 77% men, 65% White, 23% Black, and 26% Hispanic; 73% reported a recent history of condomless sex, mainly with partners of unknown HIV status. Of 34% (67/195) reporting injection drug use, 43% reported sharing equipment. Despite risk factors, many persons reported their risk for acquiring HIV as low (47%) or no (43%) risk, although 51/93 (55%) with PrEP indications reported interest in PrEP. Justice-involved persons who use drugs underestimated their HIV risk and might benefit from increased PrEP education efforts.

Prevalence, Incidence, and Predictors of Kaposi Sarcoma-associated Herpesvirus Infection Among Young Men Who Have Sex with Men in the Southern United States.

Kaposi Sarcoma (KS) continues to cause substantial morbidity and mortality in populations at risk in the southern US. Utilizing biospecimens from the Houston site of the Young Men's Affiliate Project, 351 men who have sex with men had blood tested for Kaposi Sarcoma-associated herpesvirus (KSHV) IgG. Measuring seroprevalence, seroconversion between timepoints, and demographic and clinical correlates, KSHV prevalence was 36.7% and incidence was 8.9 per 100 person-years, prevalence and incidence were higher among Black individuals, people living with HIV, and those with a history of syphilis. Further research on KSHV risk may improve health disparities in KS diagnosis and outcomes.

A randomized control trial of a combined community health worker and re-entry intervention for people with HIV recently released from jail who use substances.

INTRODUCTION: People with human immunodeficiency virus (HIV; PWH) who use substances are disproportionately involved in the criminal justice system. While HIV viral suppression typically improves during incarceration, these gains are frequently lost after release. We evaluated the impact of a combined intervention (formerly incarcerated community health workers [CHW] plus a re-entry organization; CHW+) on postrelease HIV- and substance use-related outcomes. METHODS: We conducted a pilot randomized controlled trial of a CHW+ for PWH who use substances, within 30 days of release from a large southern, urban jail. Between February 2019 and August 2021, participants were recruited, enrolled, and randomized to treatment as usual (TAU; passive referral to care) or CHW+. Follow up study visits occurred at 3, 6, and 12 months. The primary outcome was HIV VL at 6 months; secondary outcomes included 6-month urinary toxicology and high-risk substance use at 12 months. RESULTS: A total of 31 participants were enrolled who were primarily male (n = 24; 77 %), Black (n = 22; 71 %), unemployed (n = 23; 74.2 %), had unstable housing (n = 18; 58 %), had food insecurity (n = 14; 45 %), and reported their drug of choice was stimulants (n = 24; 77 %). The study identified no significant difference in HIV VL suppression at 6 months (20 % v. 37 %; [CHW+ v. TAU], p = 0.61). We observed improved substance use outcomes in CHW+ v. TAU, including fewer positive urinary toxicology screens for stimulants (40 % v. 100 %; p = 0.01) and a trend toward less high-risk substance use (30 % v. 43 %). The CHW+ group met more basic needs, such as food security [+32 % v. +11 %], housing security [+52 % v. -7 %] and full-time employment [+20 % v. +5 %] compared to TAU. CONCLUSIONS: PWH who use substances assigned to a combined intervention of CHW+ after jail release did not achieve higher rates of HIV VL suppression than TAU; however, they had improved substance use outcomes and met more basic subsistence needs. Results highlight the potential of culturally informed interventions to address the competing needs of PWH who use substances after release from jail and call for further development of innovative solutions to successfully bridge to HIV care in the community.

High Seroprevalence of Kaposi Sarcoma-Associated Herpesvirus in Men Who Have Sex With Men With HIV in the Southern United States.

Background: Disparities in mortality in human immunodeficiency virus (HIV)-associated Kaposi sarcoma have been described, particularly in Black men in the southern United States. It is unclear if there are racial/ethnic differences in the seroprevalence of Kaposi sarcoma-associated herpesvirus (KSHV) that may be contributing. Methods: This is a cross-sectional study of men who have sex with men (MSM) and transgender women with HIV. Participants were recruited from an outpatient HIV clinic in Dallas, Texas, for a 1-time study visit and were excluded from analysis if they had any history of KSHV disease. Plasma was tested for antibodies to KSHV K8.1 or ORF73 antigens, and KSHV DNA was measured in oral fluids and blood by polymerase chain reaction. KSHV seroprevalence and viral shedding in blood and oral fluids were calculated. Additionally, independent risk factors for KSHV seropositivity were assessed by multivariable logistic regression analysis. Results: Two hundred five participants were included in our analysis. Overall, KSHV seroprevalence was high (68%) with no significant difference between racial/ethnic groups. Among seropositive participants, KSHV DNA was detected in 28.6% of oral fluids and 10.9% of peripheral blood specimens, respectively. The factors most strongly associated with KSHV seropositivity were oral-anal sex (odds ratio [OR], 3.02), oral-penile sex (OR, 4.63), and methamphetamine use (OR, 4.67). Conclusions: High local seroprevalence of KSHV is likely a key driver of the high burden of KSHV-associated diseases regionally, though it does not explain the observed disparities in KSHV-associated disease prevalence among racial/ethnic groups. Our findings support that KSHV is primarily transmitted via exchange of oral fluids.

SEQUIN Multiscale Imaging of Mammalian Central Synapses Reveals Loss of Synaptic Connectivity Resulting from Diffuse Traumatic Brain Injury.

The brain's complex microconnectivity underlies its computational abilities and vulnerability to injury and disease. It has been challenging to illuminate the features of this synaptic network due to the small size and dense packing of its elements. Here, we describe a rapid, accessible super-resolution imaging and analysis workflow-SEQUIN-that quantifies central synapses in human tissue and animal models, characterizes their nanostructural and molecular features, and enables volumetric imaging of mesoscale synaptic networks without the production of large histological arrays. Using SEQUIN, we identify cortical synapse loss resulting from diffuse traumatic brain injury, a highly prevalent connectional disorder. Similar synapse loss is observed in three murine models of Alzheimer-related neurodegeneration, where SEQUIN mesoscale mapping identifies regional synaptic vulnerability. These results establish an easily implemented and robust nano-to-mesoscale synapse quantification and characterization method. They furthermore identify a shared mechanism-synaptopathy-between Alzheimer neurodegeneration and its best-established epigenetic risk factor, brain trauma.