Navigating Barriers and Opportunities: Perceptions of the Non-Occupational Post-Exposure Prophylaxis Care Continuum Among Young Sexual Minority Men, Aged 17-24, in the United States.

Human immunodeficiency virus (HIV) is a public health concern among young sexual minority men (YSMM), ages 17 to 24, in the United States. Biomedical prevention methods, such as pre-exposure prophylaxis (PrEP) and non-occupational post-exposure prophylaxis (nPEP), can help reduce the risk of HIV transmission among this population. However, there is limited awareness and use of nPEP by YSMM. This study aims to explore the perceptions of YSMM regarding the nPEP care continuum, which consists of three areas of focus: awareness, uptake, and linkage to other HIV prevention services. This study draws on synchronous online focus groups with a sample of 41 YSMM in the United States. Transcripts from the focus groups were analyzed using reflexive thematic analysis. Participants reported limited nPEP awareness and prior use, a process of personal appraisal of nPEP need based on HIV risk and costs, and a preference for PrEP over PEP for long-term HIV prevention. Interventions should be tailored to increase awareness of nPEP among YSMM and reduce addressable barriers to nPEP use for YSMM, including cost and confidentiality concerns, in situations where nPEP is warranted. Finally, more research is needed on how nPEP use can act as a bridge to PrEP initiation for this population.

Sexual and Gender Minority Men's Bystander Behaviors and Barriers in Response to Witnessing Minor Sexual Aggression.

Objective: Sexual and gender minority (SGM) men experience sexual assault victimization. Encouraging people to become involved when they witness high-risk sexual situations as a prosocial bystander is one preventative mechanism to address sexual assault victimization. However, research assessing the extent that SGM men will intervene when they witness a concerning male-to-male sexual situation and barriers that prevent intervention is lacking. We sought to address these gaps. Method: SGM men (n = 323, Mage = 39.4, range 18-77) completed a web-administered survey. Participants were asked if they had witnessed a high-risk sexual situation and, if so, to describe how they intervened; if they did not intervene, they were asked to explain why not. Data were analyzed using thematic analysis. Results: Nearly 50% (n = 157) of participants reported witnessing a situation that may require intervention, of those men 40% reported involvement. When SGM men intervened, their behaviors included direct and indirect verbal and nonverbal strategies. Reasons for not intervening included not appraising the situation as risky, not viewing it as their responsibility to intervene, or lacking the self-efficacy to act. Conclusion: SGM men reported similar barriers to intervention that heterosexual young adults encounter. Participants also provided a variety of intervention tactics that could be included in bystander intervention initiatives to increase their effectiveness and inclusivity. Additional efforts are needed to modify intervention initiatives at both the individual and community level.

Exploring preferences and decision-making about long-acting injectable HIV pre-exposure prophylaxis (PrEP) among young sexual minority men 17-24 years old.

Intramuscular cabotegravir for long-acting injectable HIV pre-exposure prophylaxis (i.e., LAI-PrEP) was approved by the U.S. FDA in 2021. We sought to explore LAI-PrEP decision-making among a nationwide sample of young sexual minority men (YSMM) 17-24 years old. In 2020, HIV-negative/unknown YSMM (n = 41) who met CDC criteria for PrEP were recruited online to participate in synchronous online focus groups eliciting preferences and opinions about LAI-PrEP, as well as the impact of a potential self-administered option. Data were analyzed using inductive and deductive thematic analysis with constant comparison. Preferences and decision-making about LAI-PrEP varied widely among YSMM, with participants frequently comparing LAI-PrEP to oral PrEP regimens. We identified five key themes related to LAI-PrEP decision-making including concerns about adherence to PrEP dosing and clinic appointments, awareness and knowledge of PrEP safety and efficacy data, comfort with needles, minimizing PrEP stigma, and considerations of self-administration. YSMM acknowledged more PrEP options as beneficial to supporting uptake and persistence.

Factors associated with quality of life, depressive symptoms, and perceived stress among rural older adults living with HIV in the United States.

PURPOSE: Rural older people living with HIV (PLH) in the United States are a population of growing size and significance. A better understanding of factors associated with quality of life (QOL), depressive symptoms, and stress in this population-especially modifiable factors-could inform future interventions. METHODS: Online or on paper, we surveyed 446 PLH aged 50+ residing in rural counties across the United States (Mage = 56, 67% male, 67% White, and 23% Black). Associations between social support, HIV stigma, satisfaction with medical care, discrimination in health care settings, and structural barriers and health-related QOL, depressive symptoms, and perceived stress were assessed using multiple linear regressions. FINDINGS: Controlling for demographics, greater social support was associated with better QOL, fewer depressive symptoms, and less stress. Greater HIV stigma was associated with more depressive symptoms and stress. Satisfaction with care was associated with better QOL and less stress. Discrimination in medical settings was associated with lower QOL and more depressive symptoms and stress. Finally, experiencing more structural barriers was associated with lower QOL and more depressive symptoms and stress. CONCLUSIONS: In addition to engagement in care and viral suppression, QOL and mental health are also critical considerations for rural older PLH. Increasing social support, reducing or providing skills to cope with HIV stigma, improving quality of care, reducing discrimination and stigma in medical settings, and reducing or mitigating the impact of structural barriers present potential targets for interventions aiming to improve the well-being of older rural PLH.

COVID-19 vaccine hesitancy among rural Oklahomans.

INTRODUCTION: COVID-19 vaccination is widely recommended as a prevention strategy; however, vaccine uptake is disproportionately lower among rural Americans compared to their urban counterparts. Development of public health activities to address the rural-urban vaccine gap requires an understanding of determinants of vaccine hesitation. The present study explores perceptions of and barriers to COVID-19 vaccination among rural Oklahomans. METHODS: Between March and May 2021, 222 residents, unvaccinated for COVID-19, within rural Oklahoma counties completed a cross-sectional, online questionnaire to qualitatively assess perceptions, benefits, and concerns regarding getting vaccinated for COVID-19. RESULTS: Approximately two-fifths of rural respondents in the present study were hesitant to get vaccinated, even when a vaccine was made available to them. Major factors included limited knowledge and understanding about the vaccine, including potential side-effects and long-term complications, as well as skepticism surrounding COVID-19 vaccine development and efficacy. Among the potential perceived benefits of vaccination were protecting the health of vulnerable individuals and the ability to return to normal day-to-day activities. CONCLUSION: Increases in COVID-19 cases and deaths in rural areas are expected to continue as new variants are introduced within communities. The present findings highlight the need for the development of culturally tailored vaccine information, to be disseminated by local leaders within rural communities.

ACE domains and depression: Investigating which specific domains are associated with depression in adulthood.

BACKGROUND: The study of adverse childhood experiences (ACEs) has shown deleterious effects throughout adulthood. Little attention, however, is given to specific ACE domains as they relate to mental health outcomes, as most studies use cumulative ACE score models. OBJECTIVE: The current study disaggregates ACEs domains to investigate their independent effect (while controlling for each other and other demographic covariates) on receiving a depression diagnosis as an adult. PARTICIPANTS AND SETTING: Data were obtained from the Behavioral Risk Factor Surveillance Survey (BRFSS; N = 52,971). METHODS: To control and account for the numerical number of ACEs, separate models were run among each ACE score (e.g., those with an ACE score of exactly two, three, etc.). An aggregate model with all participants is also included. RESULTS: Across all ACE scores, those with a history of family mental illness had the highest likelihood of receiving a depression diagnosis. The second strongest association were those with sexual abuse. No other trends were found among the six other domains. Further, those with a combination of family mental illness and sexual abuse had the highest odds of depression. CONCLUSIONS: Mental health providers should consider the numerical number of ACEs as well as the specific ACE domains (specifically, family mental illness and sexual abuse). Additionally, this provides evidence for a possible weighting schema for the ACEs scale.

The Effects of Individual and Dual ACE Domains on Binge Drinking: Comparisons by Gender.

BACKGROUND: Adverse Childhood Experiences (ACEs) show predictive utility concerning binge drinking. However, the literature is limited by 1. a focus on cumulative ACEs with little regard to specific domains, 2. a focus on those with the highest ACE scores, and 3. little consideration for gender differences. These approaches are problematic as ACE categories are fundamentally different, yet little distinction is given to specific ACE domains. The current study investigates which individual and dual ACE domain combinations are associated with binge drinking. METHODS: Data were obtained from the Behavioral Risk Factor Surveillance System (2011-2017; N = 80,391). A series of ANCOVAs were conducted to determine the association between single and dual combination ACE domains and binge drinking. RESULTS: Results show gendered effects of ACEs on binge drinking such that at 0, 1, and 2 ACEs, males reported statistically higher rates. For males with exactly two ACEs, combinations of either sexual abuse or family incarceration presented the highest levels of binge drinking- with the highest mean binge drinking score being the exact combination of the two. This contrasts with males with 1 ACE, where experiencing family incarceration or sexual abuse, as a single domain, did not represent significant risk above the average of having a single ACE. CONCLUSIONS: Results suggest that males may be resilient to either of these domains as singular events, yet when found in combination, may present a synergistic effect that increases the likelihood of binge drinking. Due to lower overall binge drinking rates, no significant patterns were found among females.

Rural College Students' Amenability Toward Using At-Home Human Immunodeficiency Virus and Sexually Transmitted Infection Testing Kits.

BACKGROUND: College students residing in rural areas of the United States have limited access to human immunodeficiency virus (HIV) and sexually transmitted infection (STI) screening programs; yet, have increased rates of infection. METHODS: Students (N = 326), attending a state university located within a rural community, completed an online survey containing open-ended questions that gauged their perceptions and experiences with HIV/STI testing, amenability to at-home testing technology, and preferences for obtaining at-home testing kits. Inductive coding was used to create themes for each open-ended question. RESULTS: Students encounter a number of perceived barriers to accessing clinical HIV/STI testing venues including cost, utilization of parents' medical insurance, and stigma. Students desired screening paradigms that allow for a greater sense of privacy and the ability to be empowered through self-sampling methods. This includes the use of at-home testing kits, which could be accessed via mail, campus, or the local community. Although students were overwhelmingly amenable to using at-home testing, students discussed concerns with potential user error that could impact testing accuracy. CONCLUSIONS: Study findings suggest the importance of developing less clinically oriented systems of HIV/STI screening, which allow students to choose from an array of screening options. Removing perceived barriers, notably access and privacy concerns, to HIV/STI testing by leveraging at-home testing is one potential method to increase screening uptake among this at-risk population.

Education, Perceptions, and Delivery: Factors Shaping the Perceived Role in the Pre-Exposure Prophylaxis (PrEP) Care Continuum Among a Sample of Osteopathic Medical Students.

Pre-exposure prophylaxis (PrEP) uptake has been suboptimal despite its demonstrated efficacy in reducing the risk of HIV acquisition. Medical education is one distal determinant that shapes medical providers' perceived role in the PrEP care continuum. However, there is limited understanding of how osteopathic medical students and those wanting to practice in rural areas perceive their role in the PrEP care continuum in the domains of PrEP awareness, uptake, and adherence and retention. Twenty-one semistructured interviews were conducted (March 2019-April 2020) to assess what shapes osteopathic medical students' perceived role in the PrEP care continuum. Participants noted a lack of adequate sexual health training, personal perceptions concerning PrEP use, and ambiguity concerning which of the medical specialties should deliver PrEP. Osteopathic medical schools can incorporate more inclusive and holistic sexual health and PrEP curricula to address these barriers and better prepare osteopathic medical students for their future role in the PrEP care continuum.

Examining Profiles of Latinx Sexual Minority Adolescents Associated with Suicide Risk.

Few studies have focused on within-group heterogeneity about specific factors that make lesbian, gay, or bisexual (LGB) Latinx adolescents at greater odds than other LGB adolescents for suicide We take a unique mixture-modeling approach by creating profiles of Latinx LGB adolescents based on suicide risk factors used in previous investigations (bullying, alcohol, sleep, social media, and poor grades). We use these profiles in a logistic regression to investigate suicidality A sample of 686 LGB, Latinx adolescents were used in a latent profile analysis yielding four distinct profiles. Class 4 represented the highest risk, with high rates of bullying, alcohol, poor grades, and use of electronics, while class 3 represented the lowest risk with low rates of bullying and alcohol Results speak to the need to address suicidal ideation through multiple factors, noting the strong association that both bullying and alcohol have with suicidal ideation.

Perceived Confidentiality Risks of Mobile Technology-Based Ecologic Momentary Assessment to Assess High-Risk Behaviors Among Rural Men Who Have Sex with Men.

Although men who have sex with men (MSM) within rural communities are disproportionately impacted by HIV, limited HIV research and programmatic resources are directed to these communities within the U.S. There is a need for improved behavioral data collection methods to obtain more detailed information on the relationship between rural environments, sexual behavior, and substance use. Utilization of mobile health (mHealth) technologies, such as ecologic momentary assessment (EMA), has been advocated for; however, limited research has evaluated its utility among rural MSM. Forty MSM residing in rural Oklahoma were recruited to complete in-depth interviews related to participating online/mobile-based HIV prevention research. Men described a willingness to participate in HIV and substance use studies that use EMA methodologies for data collection; however, they raised various research-related concerns. In particular, participants indicated potential privacy and confidentiality concerns related to the use of the mobile technology-based EMA in public and the storage of data by researchers. Given the varying degree of sexual orientation and substance use disclosure by participants, rural MSM were largely concerned with being inadvertently "outed" within their communities. Men described the various strategies they could employ to protect private information and methods to minimize research risk. Study findings suggest that EMA is an acceptable research methodology for use among rural MSM in the context of HIV and sexual health information, when privacy and confidentiality concerns are adequately addressed. Input from community members and stakeholders is necessary to identify potential areas of concerns for participants prior to data collection.

Client perspectives on the accessibility and quality of substance use treatment during the COVID-19 pandemic.

BACKGROUND: People who use drugs have been particularly vulnerable during the COVID-19 pandemic because of their unique social, harm reduction, and treatment needs. These unique needs and challenges have significant influence on the severity of their substance use, mental health symptomatology, willingness to engage in treatment, and adherence to treatment options. This has included immense challenges related to the dissemination of COVID-19 messaging and the need for harm reduction and treatment service entities to adopt new formats to continue operation. METHODS: In-depth interview data were collected people who use drugs (N=24) residing in Oklahoma from November 2020 through February 2021 to assess perspectives on (1) their access to harm reduction, substance use prevention, and treatment programs during the COVID-19 pandemic, (2) the perceived quality of such services and programs during this time, and (3) the perceived availability of tailored COVID-19 information. RESULTS: Several factors emerged related to accessing and quality of substance use services during COVID-19, including poor accessibility (e.g., internet access), diminished quality (i.e., lack of social support), and lack of tailored COVID-19 prevention and treatment messaging. CONCLUSIONS: Upticks in COVID-19 cases and deaths are expected to continue as new SARS-CoV-2 variants are introduced. The present findings highlight the need for tailored COVID-19 messaging (e.g., minimizing the sharing of substance use supplies that can spread COVID-19, mask wearing, COVID-19 vaccination), which is responsive to unique needs of substance using populations. Similarly, as prevention and treatment programs are delivered online, efforts are necessary to ensure equitable access and enhanced quality of services.

Preferred Methods of HIV and Sexually Transmissible Infection Screening Delivery Among a Rural Sample of Men Who Have Sex with Men.

Despite the national HIV and sexually transmissible infection (STI) rates growing in rural areas, rural populations-particularly men who have sex with men (MSM), have limited access to secondary (i.e., HIV/STI screening) prevention activities compared with their urban counterparts. We conducted semistructured in-depth interviews with 23 rural MSM residing in Oklahoma and Arkansas to assess their (1) experiences with HIV and STI testing; (2) perceptions of at-home testing; and (3) preferences for receiving results and care. Barriers to accessing HIV/STI screening included lack of medical providers within rural communities, privacy and confidentiality concerns, and perceived stigma from providers and community members. To overcome these barriers, all participants recognized the importance of screening paradigms that facilitated at-home screening, medical consultation, and care. This included the ability to request a testing kit and receive results online, to access affirming and competent providers utilizing telemedicine technology, as well as prompt linkage to treatment. These narratives highlight the need for systems of care that facilitate HIV and STI screening within rural communities, which do not require participants to access services at traditional physical venues.

Divergent Soybean Calmodulins Respond Similarly to Calcium Transients: Insight into Differential Target Regulation.

Plants commonly respond to stressors by modulating the expression of a large family of calcium binding proteins including isoforms of the ubiquitous signaling protein calmodulin (CaM). The various plant CaM isoforms are thought to differentially regulate the activity of specific target proteins to modulate cellular stress responses. The mechanism(s) behind differential target activation by the plant CaMs is unknown. In this study, we used steady-state and stopped-flow fluorescence spectroscopy to investigate the strategy by which two soybean CaMs (sCaM1 and sCaM4) have evolved to differentially regulate NAD kinase (NADK), which is activated by sCaM1 but inhibited by sCaM4. Although the isolated proteins have different cation binding properties, in the presence of Mg2+ and the CaM binding domains from proteins that are differentially regulated, the two plant CaMs respond nearly identically to rapid and slow Ca2+ transients. Our data suggest that the plant CaMs have evolved to bind certain targets with comparable affinities, respond similarly to a particular Ca2+ signature, but achieve different structural states, only one of which can activate the enzyme. Understanding the basis for differential enzyme regulation by the plant CaMs is the first step to engineering a vertebrate CaM that will selectively alter the CaM signaling network.

Unique Cellular Lineage Composition of the First Gland of the Mouse Gastric Corpus.

The glandular stomach has two major zones: the acid secreting corpus and the gastrin cell-containing antrum. Nevertheless, a single gland lies at the transition between the forestomach and corpus in the mouse stomach. We have sought to define the lineages that make up this gland unit at the squamocolumnar junction. The first gland in mice showed a notable absence of characteristic corpus lineages, including parietal cells and chief cells. In contrast, the gland showed strong staining of Griffonia simplicifolia-II (GSII)-lectin-positive mucous cells at the bases of glands, which were also positive for CD44 variant 9 and Clusterin. Prominent numbers of doublecortin-like kinase 1 (DCLK1) positive tuft cells were present in the first gland. The first gland contained Lgr5-expressing putative progenitor cells, and a large proportion of the cells were positive for Sox2. The cells of the first gland stained strongly for MUC4 and EpCAM, but both were absent in the normal corpus mucosa. The present studies indicate that the first gland in the corpus represents a unique anatomic entity. The presence of a concentration of progenitor cells and sensory tuft cells in this gland suggests that it may represent a source of reserve reparative cells for adapting to severe mucosal damage.

Measurement of the percentage volume particle size distribution of powdered microcrystalline cellulose using reflectance near-infrared spectroscopy.

This is the first reported method for determining the percentage volume particle size distribution of a powder (microcrystalline cellulose) by near-infrared (NIR) reflectance spectroscopy. A total of 113 samples of powdered microcrystalline cellulose were used from six different commercially available grades, with different moisture contents (range: 0.9-4.8% m/m). NIR reflectance measurements of these samples were made in narrow soda glass vials. Reference particle size data for the samples were acquired by laser diffraction. The NIR data were then calibrated to measure particle size by partial least squares regression. The effects of a range of different NIR data pre-treatments on calibration and prediction precision were investigated. Overall, simple absorbance data were found to produce regression models with the best predictive ability (root mean square error of prediction = 0.90%). The method was also found to be insensitive to moisture content.