Publications

OBJECTIVES

We determined associations between co-occurring psychiatric conditions and violence against homeless and unstably housed women.

METHODS

Between 2008 and 2010, we interviewed homeless and unstably housed women recruited from community venues about violence, socioeconomic factors, and psychiatric conditions. We used multivariable logistic regression to determine independent correlates of violence.

RESULTS

Among 291 women, 97% screened positive for 1 or more psychiatric conditions. Types of violence perpetrated by primary partners and persons who were not primary partners (non-primary partners) included emotional violence (24% vs 50%; P < .01), physical violence (11% vs 19%; P < .01), and sexual violence (7% vs 22%; P < .01). The odds of primary partner and non-primary partner violence increased with each additional psychiatric diagnosis and decreasing levels of social isolation.

CONCLUSIONS

All types of violence were more commonly perpetrated by non-primary partners, suggesting that an exclusive focus on domestic violence screening in health care or social service settings will miss most of the violence in this population. Contrary to some previous studies, the odds of violence decreased as social isolation increased, suggesting that social isolation may be protective in homeless and unstably housed communities with high levels of comorbidity and limited options.

OBJECTIVE

Although HAART effectively suppresses viral replication, it fails to eradicate latent viral reservoirs. The 'shock and kill' strategy involves the activation of HIV from latent reservoirs and targeting them for eradication. Our goal was to develop new approaches for activating HIV from latent reservoirs.

DESIGN

We investigated capacity of Ingenol B (IngB), a newly modified derivative of Ingenol ester that was originally isolated from a Brazilian plant in Amazon, for its capacity and mechanisms of HIV reactivation.

METHODS

Reactivation of HIV-1 by IngB was evaluated in J-Lat A1 cell culture model of HIV latency as well as in purified primary CD4 T cells from long-term HAART-treated virologically-suppressed HIV-infected individuals. The underlining molecular mechanisms of viral reactivation were investigated using flow cytometry, RT-qPCR and chromatin immunoprecipitation.

RESULTS

IngB is highly effective in reactivating HIV in J-Lat A1 cells with relatively low cellular toxicity. It is also able to reactivate latent HIV in purified CD4 T cells from HAART-treated HIV-positive individuals ex vivo. Our data show that IngB may reactivate HIV expression by both activating protein kinase C (PKC)δ-nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB) pathway and directly inducing NF-κB protein expression. Importantly, IngB has a synergistic effect with JQ1, a BET bromodomain inhibitor, in latent HIV reactivation.

CONCLUSIONS

IngB is a new promising compound to activate latent HIV reservoirs. Our data suggest that formulating novel derivatives from Ingenol esters may be an innovative approach to develop new lead compounds to reactivate latent HIV.