Plasma Concentrations of Oral Ondansetron in Hospitalized Dogs Exhibiting Clinical Signs of Nausea.

The purpose of this study was to evaluate plasma ondansetron (OND) concentrations in a population of dogs with naturally occurring nausea after oral OND administration. Twenty-four dogs were randomly assigned to receive one of the following doses of oral OND: 0.5 mg/kg q8h, 0.5 mg/kg q12h, 1 mg/kg q8h, or 1 mg/kg q12h. Blood samples for plasma OND measurements were collected at baseline and 2, 4, and 8 h after administration of the first dose of OND. OND concentrations averaged over an 8 h time period were not significantly different between dose groups (0.5 mg/kg group: median 8.5 ng/mL [range 1-96.8 ng/mL], 1 mg/kg group: median 7.4 ng/mL [range 1-278.7 ng/mL]). The mean maximum concentrations in the 0.5 mg/kg and 1 mg/kg groups were 35.8 ± 49.0 ng/mL and 63.3 ± 121.1 ng/mL, respectively. OND concentrations were below the lower limit of quantification (LLOQ) in 50% (18/36) of samples in the 0.5 mg/kg groups and 39% (14/36) of samples in the 1 mg/kg groups. Six dogs (6/24, 25%) did not have OND detected at any time. The mean nausea scores at baseline were similar amongst all groups and decreased over time. The bioavailability of oral OND appears to be poor. Despite low plasma OND concentrations, nausea scores improved over time.

Characterizing Interest in and Uptake of Preexposure Prophylaxis for HIV Prevention Among Men in a US State Correctional System.

BACKGROUND: People experiencing incarceration are disproportionately impacted by HIV and are potential candidates for HIV preexposure prophylaxis (PrEP). We explored factors associated with PrEP interest and PrEP uptake and described barriers to PrEP uptake among incarcerated men in a state correctional system. METHODS: From September 2019 to July 2022, incarcerated men at the Rhode Island Department of Corrections were screened for PrEP eligibility and referred to a PrEP initiation study. We used bivariate analyses and multivariable logistic regression models to explore factors associated with PrEP interest and uptake in the screening sample. RESULTS: Of the men screened and determined to be eligible for PrEP, approximately half (50%) were interested in taking PrEP. Individuals identifying as men who have sex with men (adjusted odds ratio, 4.46; 95% confidence interval, 1.86-11.4) and having multiple female sex partners (adjusted odds ratio, 2.98; 95% confidence interval, 1.47-6.27) were more likely to express interest in PrEP (interested/not interested) than those not reporting these behavioral factors. Preexposure prophylaxis uptake (yes/no) was 38%. Lack of PrEP interest, low self-perceived risk of HIV acquisition, and unpredictable lengths of incarceration were the most frequently encountered barriers to PrEP uptake. CONCLUSIONS: Men reporting sexual transmission behaviors were more interested in PrEP and had higher uptake than other men. Preexposure prophylaxis interest and HIV risk factors were both moderately high, which suggests that men experiencing incarceration should be screened for and offered PrEP as part of standard clinical care. Study findings have important implications for research and practice to adapt PrEP care to correctional systems.

Recapitulation of human pathophysiology and identification of forensic biomarkers in a translational model of chlorine inhalation injury.

Chlorine gas (Cl2) has been repeatedly used as a chemical weapon, first in World War I and most recently in Syria. Life-threatening Cl2 exposures frequently occur in domestic and occupational environments, and in transportation accidents. Modeling the human etiology of Cl2-induced acute lung injury (ALI), forensic biomarkers, and targeted countermeasures development have been hampered by inadequate large animal models. The objective of this study was to develop a translational model of Cl2-induced ALI in swine to understand toxico-pathophysiology and evaluate whether it is suitable for screening potential medical countermeasures and to identify biomarkers useful for forensic analysis. Specific pathogen-free Yorkshire swine (30-40 kg) of either sex were exposed to Cl2 (≤240 ppm for 1 h) or filtered air under anesthesia and controlled mechanical ventilation. Exposure to Cl2 resulted in severe hypoxia and hypoxemia, increased airway resistance and peak inspiratory pressure, and decreased dynamic lung compliance. Cl2 exposure resulted in increased total leucocyte and neutrophil counts in bronchoalveolar lavage fluid, vascular leakage, and pulmonary edema compared with the air-exposed group. The model recapitulated all three key histopathological features of human ALI, such as neutrophilic alveolitis, deposition of hyaline membranes, and formation of microthrombi. Free and lipid-bound 2-chlorofatty acids and chlorotyrosine-modified proteins (3-chloro-l-tyrosine and 3,5-dichloro-l-tyrosine) were detected in plasma and lung tissue after Cl2 exposure. In this study, we developed a translational swine model that recapitulates key features of human Cl2 inhalation injury and is suitable for testing medical countermeasures, and validated chlorinated fatty acids and protein adducts as biomarkers of Cl2 inhalation.NEW & NOTEWORTHY We established a swine model of chlorine gas-induced acute lung injury that exhibits several features of human acute lung injury and is suitable for screening potential medical countermeasures. We validated chlorinated fatty acids and protein adducts in plasma and lung samples as forensic biomarkers of chlorine inhalation.

Establishing Population Values for Chlorine Exposure in the United States (2015-2016) Using 2 Chlorine Biomarkers, 3-Chlorotyrosine and 3,5-Dichlorotyrosine.

BACKGROUND: In the United States, 12 million short tons of chlorine are manufactured and transported each year. Due to the volume of this volatile chemical, large- and small-scale chemical exposures occur frequently. To diagnose and treat potentially exposed individuals, reference range values for confirmatory biomarkers are required to differentiate between normal and abnormal exposure levels. METHODS: Serum surplus samples (n = 1780) from the National Health and Nutrition Examination Survey (NHANES) 2015-2016 were measured for 2 chlorine biomarkers, 3-chlorotyrosine (Cl-Tyr) and 3,5-dichlorotyrosine (Cl2-Tyr), by liquid chromatography coupled to a triple quadrupole mass spectrometer. We evaluated demographic factors associated with elevated biomarker levels. RESULTS: Participant samples were analyzed for the chlorine biomarkers Cl-Tyr and Cl2-Tyr. In the unweighted analysis of these samples, 1349 (75.8%) were under the limit of detection (< LOD) of 2.50 ng/mL for Cl-Tyr and 1773 (99.6%) were < LOD for Cl2-Tyr. Samples within the method reportable range were 2.50 to 35.6 ng/mL for Cl-Tyr and 2.69 to 11.2 ng/mL for Cl2-Tyr. Since only 7 of the 1780 participants had detectable Cl2-Tyr, statistical analysis was limited to Cl-Tyr. Of the demographic characteristics examined, age, body mass index (BMI), estimated glomerular filtration rate (eGFR), and sex exhibited statistically significant differences in the weighted prevalence of detectable Cl-Tyr. CONCLUSIONS: This is the first reported set of Cl-Tyr and Cl2-Tyr population values for the United States. This population range coupled with NHANES demographic information could help healthcare professionals distinguish between normal and abnormal chlorine biomarker levels in an emergency. With this information, an inference could be made when determining acute chlorine exposure in individuals.

Modeling and Correction of Protein Conformational Disease in iPSC-derived Neurons through Personalized Base Editing.

Altered protein conformation can cause incurable neurodegenerative disorders. Mutations in SERPINI1 , the gene encoding neuroserpin, alter protein conformation resulting in cytotoxic aggregation in neuronal endoplasmic reticulum. Aggregates cause oxidative stress impairing function, leading to neuronal death. Familial encephalopathy with neuroserpin inclusion bodies (FENIB) is a rare autosomal dominant progressive myoclonic epilepsy. Patients present with seizures and cognitive impairments that progress to dementia and premature death. We developed HEK293T and induced pluripotent stem cell (iPSC) models of FENIB, harboring the patient's pathogenic SERPINI1 variant or stably overexpressing mutant neuroserpin fused to GFP (MUT NS-GFP). FENIB cells form neuroserpin inclusions which increase in size and number. Here, we utilized a personalized adenine base editor (ABE)-mediated approach to efficiently correct the pathogenic variant and to restore neuronal dendritic morphology. ABE-treated MUT NS-GFP cells demonstrated reduced inclusion size and number. Using an inducible MUT NS-GFP neuron system, we identified early prevention of toxic protein expression allowed aggregate clearance, while late prevention halted neuronal impairments. To address several challenges for clinical applications of gene correction, we developed a neuron-specific engineered virus-like particle to optimize neuronal ABE delivery. Preventing mutant protein with altered conformation production improved toxic protein clearance. Our findings provide a targeted strategy and may treat FENIB and potentially other neurodegenerative diseases due to altered protein conformation such as Alzheimer's and Huntington's diseases.

Implementing Preexposure Prophylaxis for HIV Prevention in a Statewide Correctional System in the United States.

HIV disproportionately affects populations experiencing incarceration. Preexposure prophylaxis (PrEP) is an effective approach to preventing HIV acquisition among populations at increased risk of acquiring HIV. Yet few, if any, efforts have been made to offer PrEP in correctional settings. Beginning in November 2019, the Rhode Island Department of Corrections (RIDOC) implemented a systemwide PrEP initiation program with linkage to PrEP care in the community upon reentry. Incarcerated individuals identified as being potentially at increased risk of HIV acquisition during standard clinical screenings and medical care were referred to a PrEP care provider for potential PrEP initiation. Of the 309 people who met with a PrEP care provider, 35% (n = 109; 88 men, 21 women) agreed to initiate PrEP while incarcerated. Clinical testing and evaluation were completed for 82% (n = 89; 69 men, 20 women) of those who agreed to initiate PrEP. Of those, 54% (n = 48; 29 men, 19 women) completed the necessary clinical evaluation to initiate PrEP, were determined to be appropriate candidates for PrEP use, and had the medication delivered to a RIDOC facility for initiation. Only 8 people (4 men, 4 women) were successfully linked to a PrEP care provider in the community after release. The RIDOC experience demonstrates notable levels of PrEP interest and moderate levels of PrEP uptake among this population. However, PrEP engagement in care after release and persistence in taking PrEP when in the community were relatively poor, indicating a need to better understand approaches to overcoming barriers to PrEP care in this unique setting.

Social, Structural, Behavioral, and Clinical Barriers Influencing Pre-exposure Prophylaxis (PrEP) Use Among Young Black Men Who Have Sex with Men in the South: A Qualitative Update to a 2016 Study.

Antiretroviral pre-exposure prophylaxis (PrEP) is highly effective in preventing HIV. Despite its promise, PrEP use is low, especially among young Black men who have sex with men (YBMSM). The prevalence of HIV in Mississippi (MS) is among the highest in the United States, with the bulk of new infections occurring amongst YBMSM living in Jackson, MS. We recruited 20 PrEP-eligible YBMSM and 10 clinic staff from MS health clinics between October 2021 and April 2022. Data were collected remotely using in-depth interviews and a brief survey, which lasted approximately 45-60 min. Interview content included PrEP knowledge/experiences, HIV risk perception, and PrEP use barriers and facilitators. Qualitative data were coded then organized using NVivo. Using thematic analysis methodology, data were assessed for current barriers to PrEP use. An array of barriers were identified by participants. Barriers included structural factors (cost of PrEP, lack of discreet clinics, time commitment, competing interests); social factors (unaware of HIV risk, stigma and homophobia, fear that partners would find out about PrEP use, not knowing anyone on PrEP); behavioral factors (sexual risk factors, denial, less priority for prevention vs treatment); and clinical factors (misunderstood side effects, fear PrEP won't work). Significant barriers to PrEP use among YBMSM stem from structural, social, behavioral, and clinical factors. These results will inform intervention efforts tailored to mitigate barriers and improve PrEP uptake among YBMSM in the southern United States.

Characterizing Social Connectedness and Associated Mental Health Symptoms among Sexual Minority Men Enrolled in a Substance Use Recovery Support Program.

BACKGROUND: Sexual minority men (SMM; gay, bisexual, and other men who have sex with men) report higher rates of substance use compared to other populations. Social connectedness is a critical component for promoting and maintaining recovery from substance use disorders. However, the degree of social connectedness among SMM who report substance use is largely unknown. OBJECTIVES: We examined substance use, social connectedness (past 30-d participation in formal recovery support, past 30-d interaction with supportive family/friends, relationship satisfaction, and types of support) and mental health among SMM at the time of their enrollment in a behavioral substance use program from September 2019 to October 2021. RESULTS: Of the107 SMM, 80% of the sample reported past 30-d illicit substance use, with methamphetamine representing the most commonly reported drug used (53%). Participants used a variety of social connections for support, including self-help groups (44% voluntary; 5% religious-affiliated; 20% other) and family/friends (81%). Importantly, 15% reported they had no one to turn to when having trouble and 36% were either dissatisfied or very dissatisfied with their relationships. Participants who endorsed significant depressive (58%) and anxiety (70%) symptoms were more likely to endorse relationship dissatisfaction than participants who did not endorse symptoms (p < 0.01). CONCLUSIONS: One-third of SMM enrolled in a substance use recovery program expressed relationship dissatisfaction, particularly those struggling with depression or anxiety. Future research and programming should examine ways of leveraging existing social connectedness or forging new social supports to enhance mental health and substance use recovery for SMM using substances.

The efficacy and safety of cannabidiol as adjunct treatment for drug-resistant idiopathic epilepsy in 51 dogs: A double-blinded crossover study.

BACKGROUND: Approximately 30% of dogs with idiopathic epilepsy (IE) are drug-resistant. Recent studies have suggested cannabidiol (CBD) may be an effective anticonvulsant in dogs with IE. OBJECTIVE: To evaluate the addition of CBD to antiseizure drugs (ASDs) on seizure frequency and to report adverse events in dogs with drug-resistant IE. ANIMALS: Fifty-one dogs. Dogs having at least 2 seizures per month while receiving at least 1 ASD were included in the trial. METHODS: Double-blinded placebo-controlled crossover study. The 5 mg/kg/day dosage met futility requirements after 12 dogs, and a dosage of 9 mg/kg/day was used in the next 39 dogs. Dogs were randomly assigned to receive CBD or placebo for 3 months, with a 1-month washout period between oils. Total numbers of seizures and seizure days were recorded. Diagnostic testing was performed periodically throughout the trial. RESULTS: At the 9 mg/kg/day dose, the decrease in total seizure frequency was significant compared with placebo. A 24.1% decrease in seizure days occurred in dogs receiving CBD and a 5.8% increase occurred in dogs receiving placebo (P ≤ .05). No significant difference was found in the number of responders (≥50% decrease in total seizures or seizure days). Liver enzyme activities increased at both dosages. Decreased appetite and vomiting were more common in the CBD phase (P ≤ .05). CONCLUSIONS AND CLINICAL IMPORTANCE: Cannabidiol decreased total seizures and seizure days compared to placebo when administered to dogs PO at 9 mg/kg/day. Liver enzymes should be monitored with administration of CBD in dogs.

A Rapid Environmental Scan of South Florida HIV Organizations' Mpox Messaging During the August 2022 Peak of the U.S. Outbreak.

The 2022 outbreak of mpox disproportionately impacted men who have sex with men and people living with HIV. As such, HIV organizations were uniquely situated to reach populations affected by mpox. However, the extent to which these organizations pivoted to address mpox, and what form mpox messaging took, is unknown. We conducted a rapid environmental scan of 29 HIV or sexual health organizations to assess the frequency and content of mpox messaging in August 2022, the peak of the mpox outbreak in Miami, FL. Approximately half of the organizations provided mpox messaging, most of which was accurate. Only 5% of the messages were in Spanish and 4% in Spanish and Haitian Creole. Our findings suggest HIV organizations' pivot to mpox messaging may have been delayed overall and in reaching Spanish- and Haitian Creole-speaking communities. Results could inform modifications to mpox messaging campaigns and future outbreaks that disproportionately affect minoritized communities.

RESUMEN: El brote de la viruela del mono en 2022 afectó desproporcionadamente a hombres que tienen relaciones sexuales con hombres y personas que viven con el VIH. Como tal, las organizaciones dedicadas al VIH estaban en una posición única para llegar a las poblaciones afectadas por la viruela del mono. Sin embargo, no se sabe en qué medida estas organizaciones cambiaron su enfoque para abordar la viruela del mono y qué forma tomó la mensajería sobre a la viruela del mono. Realizamos un escaneo ambiental rápido de 29 organizaciones de VIH o salud sexual para evaluar la frecuencia y el contenido de la mensajería sobre la viruela del mono en agosto de 2022, en el pico del brote de la viruela del mono en Miami, Florida. Aproximadamente la mitad de las organizaciones proporcionaron mensajería sobre la viruela del mono, la mayoría de la cual era precisa. Solo el 5% de los mensajes estaban en español y el 4% en español y criollo haitiano. Nuestros hallazgos sugieren que el cambio de enfoque de las organizaciones de VIH hacia la mensajería sobre la viruela del mono puede haber sido en general demorado y que no llegó adecuadamente a las comunidades de habla hispana y criollo haitiano. Los resultados podrían informar modificaciones en las campañas de mensajería sobre la viruela del mono y en futuros brotes que afecten desproporcionadamente a comunidades minorizadas.

Infant epigenetic aging moderates the link between Black maternal childhood trauma and offspring symptoms of psychopathology.

Although offspring of women exposed to childhood trauma exhibit elevated rates of psychopathology, many children demonstrate resilience to these intergenerational impacts. Among the variety of factors that likely contribute to resilience, epigenetic processes have been suggested to play an important role. The current study used a prospective design to test the novel hypothesis that offspring epigenetic aging - a measure of methylation differences that are associated with infant health outcomes - moderates the relationship between maternal exposure to childhood adversity and offspring symptomatology. Maternal childhood adversity was self-reported during pregnancy via the ACEs survey and the CTQ, which assessed total childhood trauma as well as maltreatment subtypes (i.e., emotional, physical, and sexual abuse). Offspring blood samples were collected at or shortly after birth and assayed on a DNA methylation microarray, and offspring symptomatology was assessed with the CBCL/1.5-5 when offspring were 2-4 years old. Results indicated that maternal childhood trauma, particularly sexual abuse, was predictive of offspring symptoms (ps = 0.003-0.03). However, the associations between maternal sexual abuse and offspring symptomatology were significantly attenuated in offspring with accelerated epigenetic aging. These findings further our understanding of how epigenetic processes may contribute to and attenuate the intergenerational link between stress and psychopathology.

Perspectives on long-acting formulations of pre-exposure prophylaxis (PrEP) among men who have sex with men who are non-adherent to daily oral PrEP in the United States.

INTRODUCTION: Pre-exposure prophylaxis (PrEP) persistence among men who have sex with men (MSM) in real world clinical settings for HIV prevention is suboptimal. New longer-acting formulations of PrEP are becoming available, including injectables, subdermal implants, and other oral medications. These longer-acting formulations have the potential to improve retention among those who have challenges remaining adherent to daily oral PrEP. METHODS: We interviewed 49 MSM who had initiated but discontinued oral PrEP at three diverse clinics across the United States. We examined participants' perspectives about long-acting PrEP formulations and how long-acting options could affect PrEP use using thematic analysis. RESULTS: Participants were not very knowledgeable about long-acting formulations of PrEP but were open to learning about them and considering use. Participants were concerned about safety and efficacy of products given that they were still newer and/or in development. Finally, participants had clear preferences for oral pills, injectables, and then subdermal implants and were most interested in options that reduced the number of visits to the clinic. CONCLUSION: Long-acting formulations of PrEP are acceptable to MSM with suboptimal PrEP persistence and have the potential to improve PrEP persistence. However, many felt they needed more information on safety, efficacy, and use to consider these options. As these long-acting formulations are implemented, public health campaigns and clinical interventions to encourage may maximize uptake particularly among those who are not currently adherent to daily oral PrEP.

Perspectives of a peer-driven approach to improve pre-exposure prophylaxis and HIV prevention among Black/African American and Hispanic/Latino men who have sex with men.

BACKGROUND: Black/African American (B/AA) and Hispanic/Latino (H/L) men who have sex with men (MSM) are significantly less likely than white MSM to initiate pre-exposure prophylaxis (PrEP). A peer-driven intervention (PDI) may be an effective approach to addressing this disparity. In this study, we explored community member perspectives of a PDI to promote PrEP uptake among B/AA and H/L MSM. METHODS: We conducted semi-structured interviews with B/AA and H/L HIV-negative MSM between August 2018 and October 2019 in Rhode Island, USA. Participants reported their perspectives and recommendations for a PDI. Data from participant responses were thematically analysed. RESULTS: Of 15 MSM, the median age was 25years (interquartile range: 22, 33). The majority identified as B/AA (53.3%), H/L (66.7%), and having a college education or above (53.3%). Most participants viewed a PDI positively and were willing to learn and promote PrEP among their peers. Participants identified and supported several potential intervention components, such as education about the benefit of PrEP, emphasising prevention-effective dosing, and clarifying no prevention effect towards other sexually transmitted infections. They preferred in-person meetings to electronic communication. Preferred characteristics of peer educators included compassion, good communication skills, and enthusiasm about PrEP. CONCLUSIONS: This in-depth qualitative interview suggested that a PDI approach is promising in promoting PrEP uptake, as it could deliver culturally appropriate education and encourage PrEP uptake via peer influence among B/AA and H/L MSM.

Intergenerational and early life associations of the gut microbiome and stress-related symptomatology among Black American mothers and children.

Recent evidence suggests that maternal childhood adversity may have an intergenerational impact, with children of adversity-exposed mothers exhibiting elevated symptoms of psychopathology. At the same time, many children demonstrate resilience to these intergenerational effects. Among the variety of factors that likely contribute to resilience, the composition of the gut microbiome may play a role in buffering the negative impacts of trauma and stress. The current prospective cohort study tested the novel hypothesis that offspring gut microbiome composition is a potential moderator in the relationship between maternal exposure to childhood adversity and offspring symptomatology (i.e., internalizing, externalizing, and posttraumatic stress symptoms). Maternal childhood adversity was self-reported during pregnancy via the Childhood Trauma Questionnaire and Adverse Childhood Experiences (ACEs) survey, and offspring symptomatology was assessed with the Child Behavior Checklist/1.5-5 when offspring were 2-4 years old. Offspring fecal samples were collected between these timepoints (i.e., during 6- to 24-month follow-up visits) for microbiome sequencing. Results indicated that maternal ACEs and the relative abundances of Bifidobacterium, Lactobacillus, and Prevotella were associated with offspring symptomatology. However, there was little evidence that microbial abundance moderated the association between maternal adversity and offspring symptoms. Overall, these findings further our understanding of how the gut microbiome associates with psychopathology, and informs future studies aimed at targeting modifiable factors that may buffer the intergenerational effects of childhood adversity.

Development of An Acceptance Based PrEP Intervention (ACTPrEP) to Engage Young Black MSM in the South Utilizing the Adaptome Model of Intervention Adaptation.

Objectives: HIV disproportionately affects young Black men who have sex with men (YBMSM) in the Southern United States. Pre-exposure prophylaxis (PrEP) is an efficacious, biomedical approach to prevent HIV. While Mississippi (MS) has among the highest rates of new HIV infections, it also ranks among the top three states for unmet PrEP need. Thus, increasing engagement in PrEP care for YBMSM in MS is imperative. A potential method to improve psychological flexibility and promote PrEP uptake, explored by this study, is the incorporation of Acceptance and Commitment Therapy (ACT) into PrEP interventions. ACT is an evidence-based intervention used to treat a wide range of mental and physical illnesses. Methods: Twenty PrEP-eligible YBMSM and ten clinic staff working with YBMSM in MS were surveyed and interviewed between October 2021 and April 2022. The brief survey covered PrEP structural barriers, PrEP stigma, and psychological flexibility. Interview topics included internal experiences related to PrEP, existing health behaviors, PrEP related personal values, and relevant constructs from the Adaptome Model of Intervention Adaptation (service setting, target audience, mode of delivery, and cultural adaptations). Qualitative data were coded based on ACT and the Adaptome model, organized using NVivo, then thematically analyzed. Results: Patients identified side effects, costs, and taking a daily prescription as top barriers to taking PrEP. Staff reported the top barrier to PrEP for clients was concern others would believe they were living with HIV. Levels of psychological flexibility and inflexibility varied widely among participants. The resulting thematic categories derived from the interviews included 1) thoughts, emotions, associations, memories, and sensations (TEAMS) related to PrEP and HIV, 2) general health behaviors (existing coping techniques, views on medication, HIV/PrEP approach and avoidance), 3) values related to PrEP use (relationship values, health values, intimacy values, longevity values), and 4) Adaptome Model adaptations. These results informed the development of a new intervention, ACTPrEP. Conclusions: Interview data organized by the Adaptome Model of Intervention Adaptation determined appropriate ACT-informed intervention components, content, intervention adaptations, and implementation strategies. Interventions informed by ACT that help YBMSM endure short-term discomfort related to PrEP by relating it to their values and long-term health goals are promising for increasing individuals' willingness to initiate and maintain PrEP care.

Personality disorders research and social decontextualization: What it means to be a minoritized human.

Models of personality disorders have overwhelmingly developed in a socially decontextualized manner. Some historical models of personality pathology formally embraced the interactions between the individual and their environment. However, the field of personality disorder theory, research, and treatment has evolved in a manner that situates dysfunction within intraindividual deficiency processes. By doing so the field limits its applicability to populations that do not represent the norm in clinical psychological science (e.g., sexual/gender minority [SGM] persons for our purposes). Assumptions about personality disorders conflict with evidence-based ways of understanding psychosocial dysfunction among minoritized populations. Using research on SGM populations, and the detrimental impact of minority stress, we demonstrate how sociocultural context is inextricably linked to psychosocial functioning, which remains at odds with personality disorder theory and research. We first briefly review the historical roots of personality disorder theory; explore how sociocultural context is currently instantiated in official nosologies as the Diagnostic and Statistical Manual of Mental Disorders and the Psychodynamic Diagnostic Manual; and illustrate how intraindividual personality disorder conceptualization fails to align with the accepted understanding of how minority stress impacts the health of SGM populations. Finally, we end with a few recommendations for (a) future research on personality disorders and (b) clinical work with SGM individuals who might demonstrate behaviors typically associated with a personality disorder diagnosis. (PsycInfo Database Record (c) 2023 APA, all rights reserved).

Characterizing HIV Syndemics and the Role of Incarceration Among Men Who have Sex with Men Presenting for Care at a Sexually Transmitted Infections Clinic.

Men who have sex with men (MSM) with a history of incarceration experience unique risk factors for HIV acquisition. The current study examined unique risk factors for HIV among MSM with a history of incarceration presenting to a sexually transmitted infections (STI) clinic. We analyzed self-reported behavioral data from clinical encounters among patients attending the clinic between January 2012 and April 2021. There were 17,221 unique visits, of which 5988 were MSM. Of these, 4.34% (N = 206) were MSM with a history of incarceration. MSM with a history of incarceration were significantly more likely to report a range of behavioral risk factors for HIV, yet also were significantly less likely to perceive themselves at risk for HIV. Future research and practice should develop culturally tailored biobehavioral HIV prevention services and consider embedding these programs within criminal justice settings to better reach this at-risk group.

Individual, Interpersonal, and Structural Factors That Influence Intentions to Use Pre-exposure Prophylaxis Among Sexual Minority Men in Miami.

Pre-exposure prophylaxis for HIV or "PrEP" holds great promise for reducing HIV incidence. However, in certain geographic settings, like Miami, a US HIV epicenter, uptake of PrEP has been paradoxically very low compared to other areas of the country. The goal of the current study was to examine factors associated with low uptake of PrEP in young sexual minority men in Miami. Qualitative data were extracted from conversations during voluntary HIV/STI counseling and testing sessions with 24 young sexual minority men, most of whom identified as racial/ethnic minorities. These sessions were completed as part of a baseline visit for a combined mental and sexual health intervention trial. Thematic analysis of transcripts revealed barriers and facilitators associated with PrEP uptake at multiple levels (individual, interpersonal, and economic and healthcare systems barriers). Individual-level themes included concerns about the safety of PrEP, risk compensation, and taking daily oral medication; and potential benefits of PrEP as a backup plan to condom use to reassure and reduce worry about HIV. Interpersonal-level themes included lack of knowledgeable and affirming medical providers, changing norms within the community around "safe sex," and PrEP use in serodiscordant partnerships. Economic and healthcare systems barriers included challenges to accessing PrEP because of a lack of insurance and high out-of-pocket cost. These data can be used to inform the development of interventions aligned with Ending the HIV Epidemic priorities to increase PrEP use among young sexual minority men living in an HIV epicenter.