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BACKGROUND: Leveraging military veterans' intimate relationships during treatment has the potential to concurrently improve posttraumatic stress disorder (PTSD) symptoms and relationship quality. Cognitive-Behavioral Conjoint Therapy (CBCT) and an 8-session Brief Cognitive-Behavioral Conjoint Therapy (bCBCT) are manualized treatments designed to simultaneously improve PTSD and relationship functioning for couples in which one partner has PTSD. Although efficacious in improving PTSD, the effects of CBCT on relationship satisfaction are small, especially among veterans. Intranasal oxytocin, which targets mechanisms of PTSD and relationship quality, may enhance the efficacy of bCBCT. METHOD/DESIGN: The purpose of this 4-year clinical trial is to compare the outcomes of bCBCT augmented with intranasal oxytocin versus bCBCT plus placebo. We will also explore potential mechanisms of action: self-reported communication skills, empathy, and trust. We will recruit 120 dyads (i.e., veteran with PTSD and their intimate partner) from the VA San Diego Healthcare System. Veterans will be administered 40 international units of oxytocin (n = 60) or placebo (n = 60) 30 min before each of 8 bCBCT sessions delivered via telehealth. Clinical and functioning outcomes will be assessed at five timepoints (baseline, mid-treatment, post-treatment, and 3- and 6-month follow-up). CONCLUSION: Study findings will reveal the efficacy of oxytocin-assisted brief couple therapy for PTSD, which could serve as highly scalable option for couples coping with PTSD, as well as provide preliminary evidence of interpersonal mechanisms of change. CLINICALTRIALS: govIdentifier:NCT06194851.
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Administración Intranasal , Terapia Cognitivo-Conductual , Terapia de Parejas , Oxitocina , Trastornos por Estrés Postraumático , Veteranos , Adulto , Femenino , Humanos , Masculino , Terapia Cognitivo-Conductual/métodos , Comunicación , Terapia de Parejas/métodos , Método Doble Ciego , Empatía , Oxitocina/administración & dosificación , Oxitocina/uso terapéutico , Trastornos por Estrés Postraumático/terapia , Confianza , Veteranos/psicologíaRESUMEN
The pretreatment quality of intimate relationships can promote or interfere with couple therapy for posttraumatic stress disorder (PTSD) treatment response. We tested whether baseline relationship satisfaction predicted clinical and process outcomes in two dyadic treatments for PTSD. Using data from a randomized trial comparing brief cognitive behavioral conjoint therapy (bCBCT) for PTSD to PTSD family education (PFE) among 137 military veterans and their partners (N = 274, Mage = 42.3 years, 46.7% White, 81.0% male veteran partner), we examined whether baseline relationship satisfaction (Couples Satisfaction Index; CSI-32) predicted change in PTSD symptom severity (Clinician Administered PTSD Scale for DSM-5; CAPS-5), psychosocial functioning (Brief Inventory of Psychosocial Functioning; B-IPF), and relationship satisfaction at posttreatment and 6-month follow-up. We also explored associations with process outcomes (working alliance, treatment satisfaction, dropout). In both treatment conditions, neither partner's baseline CSI-32 score moderated change in veteran CAPS-5 or B-IPF score or any process variable. However, baseline CSI-32 scores moderated both partners' CSI-32 score change during bCBCT and PFE; participants who scored in the distressed range at baseline (n = 123) experienced significant improvements in relationship satisfaction, ß = .199, whereas there was no change among those in the nondistressed range at baseline (n = 151), ß = .025. Results suggest bCBCT and PFE are effective in improving PTSD symptoms and psychosocial functioning regardless of whether a couple is experiencing clinically significant relationship distress; further, these treatments improve relationship satisfaction for the most distressed individuals.
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Terapia Cognitivo-Conductual , Terapia de Parejas , Trastornos por Estrés Postraumático , Veteranos , Humanos , Masculino , Adulto , Femenino , Trastornos por Estrés Postraumático/psicología , Terapia de Parejas/métodos , Veteranos/psicología , Terapia Cognitivo-Conductual/métodos , Emociones , Resultado del TratamientoRESUMEN
Posttraumatic stress disorder (PTSD) negatively impacts military veterans and their intimate partners. Cognitive-Behavioral Conjoint Therapy (CBCT) was developed to address both PTSD and relationship satisfaction among couples. Although efficacious in improving PTSD, the effects of CBCT and the 8-session brief CBCT (bCBCT) on relationship satisfaction among veteran patients with PTSD are modest. Pharmacological augmentation with the neuropeptide oxytocin is promising for enhancing bCBCT's potency due to its effects on mechanisms of trauma recovery (e.g., extinction learning) and relationship functioning (e.g., trust, communication). The goal of this pilot uncontrolled clinical trial was to examine the feasibility and preliminary efficacy of bCBCT augmented with intranasal oxytocin for improving PTSD and relationship satisfaction among 10 U.S. veterans with PTSD and their intimate partners. Veterans self-administered 40 international units of intranasal oxytocin 30 min before each bCBCT session delivered to the couple via telehealth. Both partners completed pre-assessment, weekly, post, and 3-month follow-up assessments of PTSD symptoms and relationship satisfaction. Couples also provided qualitative feedback related to feasibility and engagement. Nine dyads completed the treatment. There were no serious adverse events. Veterans and partners reported moderate to large effect size improvements in relationship satisfaction (Hedge's g = 0.55 and 1.01, respectively). Veterans reported large effect size reductions in PTSD severity (Hedge's g = 1.87). These results suggest that virtual oxytocin-assisted bCBCT is feasible, scalable, potentially efficacious, and should be tested with a placebo-controlled randomized controlled trial.
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Terapia de Parejas , Trastornos por Estrés Postraumático , Veteranos , Humanos , Trastornos por Estrés Postraumático/tratamiento farmacológico , Trastornos por Estrés Postraumático/diagnóstico , Oxitocina/farmacología , Oxitocina/uso terapéutico , Resultado del Tratamiento , Terapia de Parejas/métodos , ConfianzaRESUMEN
Insomnia contributes to individual mental and physical health and relationship well-being. Veterans' PTSD symptoms are associated with their own insomnia. However, research has not explored whether and how veterans' PTSD symptoms are associated with their partners' insomnia. The present study examined the association between veterans' PTSD symptom severity and veterans' and partners' insomnia. Veterans (n = 192) and their partners (n = 192; total N = 384) completed baseline assessments in a PTSD treatment study for veterans with PTSD and their partners. Path analysis was used to examine the relation between veterans' PTSD symptom severity, as measured by the PTSD symptom checklist-5 (PCL-5) and veterans' and partners' insomnia, as measured by the Insomnia Severity Index (ISI). Veterans' full-scale PCL-5 was positively related to veterans' and partners' insomnia. For veterans, intrusion and arousal symptoms were positively related to their own insomnia severity, while veterans' negative alterations in cognition and mood were associated with partners' insomnia severity. In exploratory analyses, partners' depressive symptoms fully mediated the relation between veterans' negative cognitions and mood and partners' insomnia. PTSD symptoms impact both veterans' and partners' insomnia. However, different PTSD symptom clusters were related to insomnia for each partner, and the link for partners was explained by their own depression symptoms. PTSD, insomnia, and integrated treatments should consider strategies for including partners in treatment to address these interconnected problems.
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Trastornos del Inicio y del Mantenimiento del Sueño , Trastornos por Estrés Postraumático , Veteranos , Humanos , Trastornos por Estrés Postraumático/diagnóstico , Esposos , Relaciones InterpersonalesRESUMEN
The Colorado potato beetle (Leptinotarsa decemlineata (Say)) is an insect pest that threatens potato crops. Multiple options exist to limit the impact of this pest even though insecticides remain a primary option for its control. Insecticide resistance has been reported in Colorado potato beetles and a better understanding of the molecular players underlying such process is of utmost importance to optimize the tools used to mitigate the impact of this insect. Resistance against the insecticide spinosad has been reported in this insect and this work thus aims at exploring the expression of targets previously associated with insecticide response in Colorado potato beetles exposed to this compound. Amplification and quantification of transcripts coding for cytochrome P450s and glutathione S-transferases were conducted via qRT-PCR in insects treated with varying doses of spinosad and for different time duration. This approach notably revealed differential expression of CYP6a23 and CYP12a5 in insects exposed to low doses of spinosad for 4 h as well as modulation of CYP6a13, CYP6d4, GST, GST1, and GST1-Like in insects treated with high doses of spinosad for the same duration. RNAi-based targeting of CYP4g15 and CYP6a23 was associated with marked reduction of transcript expression 7 days following dsRNA injection and reduction of the former had a marked impact on insect viability. In general, results presented here provide novel information regarding the expression of transcripts relevant to spinosad response in Colorado potato beetles and reveal a novel target to consider in the development of RNAi-based strategies aimed at this potato pest.
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Escarabajos , Insecticidas , Solanum tuberosum , Animales , Insecticidas/metabolismo , Escarabajos/genética , Neonicotinoides , Solanum tuberosum/metabolismo , Sistema Enzimático del Citocromo P-450/genética , Transferasas/metabolismo , Glutatión/metabolismoRESUMEN
The Colorado potato beetle (Leptinotarsa decemlineata (Say)) is known for its capacity to cause significant damages to potato crops worldwide. Multiple approaches have been considered to limit its spread including the use of a diverse arsenal of insecticides. Unfortunately, this insect frequently develops resistance towards these compounds. Investigating the molecular bases underlying the response of L. decemlineata against insecticides is of strong interest to ultimately devise novel and targeted approaches aimed at this pest. This work aimed to characterize, via qRT-PCR, the expression status of targets with relevance to insecticide response, including ones coding for cytochrome P450s, glutathione s-transferases, and cuticular proteins, in L. decemlineata exposed to four insecticides; chlorantraniliprole, clothianidin, imidacloprid, and spinosad. Modulation of levels associated with transcripts coding for selected cytochrome P450s was reported in insects treated with three of the four insecticides studied. Clothianidin treatment yielded the most variations in transcript levels, leading to significant changes in transcripts coding for CYP4c1, CYP4g15, CYP6a13, CYP9e2, GST, and GST-1-Like. Injection of dsRNA targeting CYP4c1 and CYP9e2 was associated with a substantial decrease in expression levels and was, in the case of the latter target, linked to a greater susceptibility of L. decemlineata towards this neonicotinoid, supporting a potential role for this target in clothianidin response. Overall, this data further highlights the differential expression of transcripts with potential relevance in insecticide response, as well as generating specific targets that warrant investigation as novel dsRNA-based approaches are developed against this insect pest.
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Two species of larval parasitoids of the globally invasive fruit pest, Drosophila suzukii (Diptera: Drosophilidae), Leptopilina japonica, and Ganaspis brasiliensis (both Hymenoptera: Figitidae), were detected in British Columbia, Canada in 2016 and 2019, respectively. Both are presumed to have been unintentionally introduced from Asia; however, the extent of their establishment across different habitats with diverse host plants used by D. suzukii was unclear. In addition, there was no knowledge of the temporal dynamics of parasitism of D. suzukii by these two parasitoids. To address these gaps, we repeatedly sampled the fruits of known host plants of D. suzukii over the entire 2020 growing season in British Columbia. We documented the presence of L. japonica and G. brasiliensis and estimated the apparent percentage of D. suzukii parasitized among host plant species. Across a large region of southwestern British Columbia, both L. japonica and G. brasiliensis were found to be very common across a variety of mostly unmanaged habitats over the entire course of the season (May-October) in the fruits of most host plants known to host D. suzukii larvae. Parasitism of D. suzukii was variable (0-66% percent parasitism) and appeared to be time-structured. Our study demonstrates that the close association between the two larval parasitoids and D. suzukii that exists in Asia has evidently been reconstructed in North America, resulting in the highest parasitism levels of D. suzukii yet recorded outside of its area of origin.
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Drosophila , Himenópteros , Animales , Colombia Británica , Frutas , Control de Insectos , LarvaRESUMEN
OBJECTIVE: This three-arm randomized trial tested a brief version of cognitive-behavioral conjoint therapy (bCBCT) delivered in two modalities compared to couples' psychoeducation in a sample of U.S. veterans with posttraumatic stress disorder (PTSD) and their intimate partners. METHOD: Couples were randomized to receive (a) in-person, office-based bCBCT (OB-bCBCT), (b) bCBCT delivered via home-based telehealth (HB-bCBCT), or (c) an in-person psychoeducation comparison condition (PTSD family education [OB-PFE]). Primary outcomes were clinician-assessed PTSD severity (Clinician Administered PTSD Scale), self-reported psychosocial functioning (Brief Inventory of Psychosocial Functioning), and relationship satisfaction (Couples Satisfaction Index) at posttreatment and through 6-month follow-up. RESULTS: PTSD symptoms significantly decreased by posttreatment with all three treatments, but compared to PFE, PTSD symptoms declined significantly more for veterans in OB-bCBCT (between-group d = 0.59 [0.17, 1.01]) and HB-bCBCT (between-group d = 0.76 [0.33, 1.19]) treatments. There were no significant differences between OB-bCBCT and HB-bCBCT. Psychosocial functioning and relationship satisfaction showed significant small to moderate improvements, with no differences between treatments. All changes were maintained through 6-month follow-up. CONCLUSIONS: A briefer, more scalable version of CBCT showed sustained effectiveness relative to an active control for improving PTSD symptoms when delivered in-person or via telehealth. Both bCBCT and couples' psychoeducation improved psychosocial and relational outcomes. These results could have a major impact on PTSD treatment delivery within large systems of care where access to brief, evidence-based PTSD treatments incorporating family members are needed. (PsycInfo Database Record (c) 2022 APA, all rights reserved).
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Terapia de Parejas , Trastornos por Estrés Postraumático , Veteranos , Humanos , Satisfacción Personal , Trastornos por Estrés Postraumático/psicología , Trastornos por Estrés Postraumático/terapia , Resultado del Tratamiento , Veteranos/psicologíaRESUMEN
The Colorado potato beetle (Leptinotarsa decemlineata (Say)) is an insect that can adapt to various challenges, including temperature fluctuations or select insecticide treatments. This pest is also an ongoing threat to the potato industry. Small noncoding RNAs such as miRNAs, which can control posttranscriptionally the expression of various genes, and piRNAs, which can notably impact mRNA turnover, are modulated in insects under different conditions. Unfortunately, information regarding the expression status of key players involved in their synthesis and function is for the most part lacking. The current study thus aims at assessing the levels of such targets in L. decemlineata exposed to hot and cold temperatures as well as treated to the insecticides chlorantraniliprole, clothianidin, imidacloprid, and spinosad. Transcript expression levels of Ago1, Ago2, Ago3, Dcr2a, Dcr2b, Expo-5, Siwi-1, and Siwi-2, components of pathways associated with small noncoding RNA production or function, were measured by qRT-PCR and revealed modulation of select transcripts in response to temperature challenges and to select insecticides. RNAi-mediated reduction of Ago2 transcript levels in L. decemlineata injected with Ago2-targeting dsRNA and exposed to cold and warm temperatures was also conducted. Changes in survival rates were observed for the latter condition in dsRNA- versus saline-injected insects. These results showcase the differential expression of select targets involved in small noncoding RNA homeostasis and provide leads for the subsequent assessment of their involvement during stress response in L. decemlineata using RNAi-based approaches.
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Escarabajos , Insecticidas , ARN Pequeño no Traducido , Animales , Escarabajos/genética , Escarabajos/metabolismo , Insecticidas/metabolismo , ARN Bicatenario , ARN Pequeño no Traducido/metabolismo , TemperaturaRESUMEN
We provide recommendations for sampling and identification of introduced larval parasitoids of spotted-wing drosophila, Drosophila suzukii (Matsumura) (Diptera: Drosophilidae). These parasitoids are either under consideration for importation (aka classical) biological control introductions, or their adventive (presumed to have been accidentally introduced) populations have recently been discovered in North America and Europe. Within the context of the ecology of D. suzukii and its parasitoids, we discuss advantages and disadvantages of estimating larval parasitism levels using different methods, including naturally collected fruit samples and sentinel baits. For most situations, we recommend repeated sampling of naturally occurring fruit rather than using sentinel baits to monitor seasonal dynamics of host plant-Drosophila-parasitoid associations. We describe how to separate Drosophilidae puparia from host fruit material in order to accurately estimate parasitism levels and establish host-parasitoid associations. We provide instructions for identification of emerging parasitoids and include a key to the common families of parasitoids of D. suzukii. We anticipate that the guidelines for methodology and interpretation of results that we provide here will form the basis for a large, multi-research team sampling effort in the coming years to characterize the biological control and nontarget impacts of accidentally and intentionally introduced larval parasitoids of D. suzukii in several regions of the world.
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Drosophila , Frutas , Animales , Europa (Continente) , Control de Insectos/métodos , Larva , América del NorteRESUMEN
Adverse Childhood Experiences (ACEs) have been found to influence one's own mental health and relationship satisfaction in adulthood; however, the association between one's own ACEs and their partner's individual and relationship functioning has not been explored. Veterans (n = 103) and their significant others (S-O; total N = 206) completed assessments on ACEs, depression, relationship satisfaction, and Posttraumatic Stress Disorder (PTSD) symptom severity as part of a baseline assessment in a treatment outcome study for veterans with PTSD and their S-Os. Actor Partner Interdependence Moderation Modeling (APIMoM) was conducted. Higher ACE score was positively related to PTSD for all participants. Female S-O's ACE score was positively related to their own depression, and male S-Os reported higher depression and lower relationship satisfaction when their partners reported a higher ACE score. Surprisingly, female veterans experienced higher relationship satisfaction when their S-Os reported a higher ACE score. ACEs are related differently to one's own and one's partner's mental health and relationship satisfaction and should be assessed when conducting couple's interventions. (PsycInfo Database Record (c) 2022 APA, all rights reserved).
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Experiencias Adversas de la Infancia , Trastornos por Estrés Postraumático , Veteranos , Adulto , Femenino , Humanos , Masculino , Salud Mental , Satisfacción Personal , Trastornos por Estrés Postraumático/psicología , Veteranos/psicologíaRESUMEN
Posttraumatic stress disorder (PTSD) symptoms are robustly associated with intimate relationship dysfunction among veterans, but most existing research has focused on male veterans and their female partners. Links between PTSD and relationship functioning may differ between female-veteran couples and male-veteran couples. The current study used actor-partner interdependence models (APIMs) to test the associations between PTSD symptoms (i.e., veteran self-report or significant others' collateral-report) and each partner's reports of six domains of relationship functioning, as well as whether these links were moderated by the gender composition of the couple. Data were from 197 mixed-gender couples (N = 394 individuals) who completed baseline assessments for a larger randomized controlled trial of a couple-based PTSD treatment. Significant others' collateral PTSD reports were associated with their own ratings of relationship satisfaction, negotiation, psychological aggression, sexual pleasure, and sexual desire frequency, |ß|s = .19-.67, and with veterans' ratings of negotiation and sexual desire frequency, |ß|s = .20-.48. In contrast, veterans' self-reported PTSD symptoms were only associated with their own ratings of psychological aggression, ß = .16. Gender moderated the associations between significant others' collateral PTSD reports and five of the six outcome variables; findings from exploratory subgroup analyses suggested links between reported PTSD symptoms and relationship functioning were generally more maladaptive for male-veteran couples, whereas female veterans showed more neutral or even helpful impacts of higher partner-perceived PTSD symptoms. These findings have implications for clinicians treating relational impacts of PTSD and emphasize the need for further research with female-veteran couples.
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Trastornos por Estrés Postraumático , Veteranos , Agresión/psicología , Femenino , Humanos , Masculino , Satisfacción Personal , Factores Sexuales , Trastornos por Estrés Postraumático/psicología , Trastornos por Estrés Postraumático/terapia , Veteranos/psicologíaRESUMEN
OBJECTIVE: To evaluate the feasibility, preliminary effects, and acceptability of the first comprehensive couple-based treatment for suicide, called Treatment for Relationships and Safety Together (TR&ST). METHOD: In a preliminary examination, five couples (N = 10) participated in 10 weekly sessions of TR&ST. All couples included a veteran who reported active suicidal ideation at baseline and their partner. Couples completed measures of relationship functioning, perceived burdensomeness, thwarted belonging, and suicidal ideation at baseline, mid-treatment, and posttreatment. RESULTS: TR&ST was feasible to deliver. Veteran and partner relationship functioning improved and veteran perceived burdensomeness, thwarted belonging, and suicidal ideation decreased. There were no suicide related behaviors, hospitalizations, or crisis line calls during the study. TR&ST seemed acceptable to couples (100% retention and high satisfaction ratings). CONCLUSION: Couple-based suicide prevention may provide an additional avenue for suicide prevention in veterans.
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Prevención del Suicidio , Veteranos , Humanos , Relaciones Interpersonales , Teoría Psicológica , Factores de Riesgo , Ideación SuicidaRESUMEN
Even though suicide theories highlight the importance of interpersonal connection, little is known about how romantic relationships impact suicide risk among military personal seeking treatment for suicidal thoughts and behaviors. Data were drawn from active-duty U.S. Soldier participants with suicidal ideation engaged in a suicide-focused treatment - the Collaborative Assessment and Management of Suicidality (CAMS). This exploratory study used a mixed-methods approach to examine two aims: (a) frequencies in which romantic relationships were endorsed in the context of the initial the Suicide Status Form (SSF; the multipurpose clinical tool used in CAMS) and (b) if having endorsed romantic relationships were implicated in their suicidal thoughts and self-inflicted injuries regardless of intent (i.e., non-suicidal self-injury and suicide attempts). We found that 76% of participants mentioned a romantic partner in at least one qualitative assessment item on the SSF. More specifically, 22.6% identified their romantic relationship as a reason for living or a reason for dying, and half of those participants indicated that their romantic relationship was both a reason for living and dying. Soldier participants who identified a current romantic relationship problem, were significantly more likely to have made a self-inflicted injury regardless of intent in their lifetime. Overall, suicidal thoughts and behaviors are intertwined with romantic relationship dynamics, and suicide-focused interventions may benefit from directly addressing these relationship issues with active-duty Soldiers.
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Tree of heaven (Ailanthus altissima) is a fast-growing deciduous tree native to China, considered a serious invasive species worldwide, with several socio-economic and ecological impacts attributed to it. Chemical and mechanical methods have limited efficacy in its management, and biological controls may offer a suitable and sustainable option. Aculus mosoniensis (Ripka) is an eriophyid mite that has been recorded to attack tree of heaven in 13 European countries. This study aims to explore the host range of this mite by exposing 13 plant species, selected either for their phylogenetic and ecological similarity to the target weed or their economic importance. Shortly after inoculation with the mite, we recorded a quick decrease in mite number on all nontarget species and no sign of mite reproduction. Whereas, after just one month, the population of mites on tree of heaven numbered in the thousands, irrespective of the starting population, and included both adults and juveniles. Significantly, we observed evidence of damage due to the mite only on target plants. Due to the specificity, strong impact on the target, and the ability to increase its population to high levels in a relatively short amount of time, we find A. mosoniensis to be a very promising candidate for the biological control of tree of heaven.
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Intimacy develops when a person discloses vulnerability and perceives their partner's response as supportive. However, a published experimental study found that individuals report their partners as less supportive in response to disclosures of specific examples of vulnerability that involve the partner (i.e., partner-inclusive) compared to disclosures that do not involve the partner (i.e., partner-exclusive). This research is an extension of findings from that experimental study and examines how individual differences in mindfulness and disclosure specificity are associated with perceived partner responsiveness during disclosures of partner-inclusive and partner-exclusive vulnerabilities. Cohabiting couples (N = 82) were randomly assigned to engage in either partner-inclusive or -exclusive vulnerability discussions. Each couple engaged in 2 video-recorded discussions so that each person took a turn as discloser and responder. Trained coders rated disclosures for specificity (i.e., whether or not the discloser used specific examples). Following each discussion, couples rated perceived partner responsiveness. Hypotheses were tested with multilevel modeling. Findings suggest that individuals perceived their partners' reactions as less responsive when they disclosed specific, partner-inclusive vulnerabilities and their partners had lower mindfulness. When partners had higher mindfulness, individuals perceived their partners as similarly responsive when disclosing partner-inclusive and -exclusive vulnerabilities, regardless of specificity. Mindfulness may enable couples to remain engaged during partner-inclusive vulnerability discussions leading to higher perceived responsiveness-an integral component of intimacy development. (PsycInfo Database Record (c) 2021 APA, all rights reserved).
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Relaciones Interpersonales , Atención Plena , Esposos/psicología , Adulto , Composición Familiar , Femenino , Humanos , Masculino , Maryland , Persona de Mediana Edad , Adulto JovenRESUMEN
The Colorado potato beetle Leptinotarsa decemlineata is an insect pest that threatens potato crops globally. The primary method to control its damage on potato plants is the use of insecticides, including imidacloprid, chlorantraniliprole and spinosad. However, insecticide resistance has been frequently observed in Colorado potato beetles. The molecular targets and the basis of resistance to imidacloprid and chlorantraniliprole have both been previously quantified. This work was undertaken with the overarching goal of better characterizing the molecular changes associated with spinosad exposure in this insect pest. Next-generation sequencing was conducted to identify transcripts that were differentially expressed between Colorado potato beetles exposed to spinosad versus control insects. Results showed several transcripts that exhibit different expression levels between the two conditions, including ones coding for venom carboxylesterase-6, chitinase 10, juvenile hormone esterase and multidrug resistance-associated protein 4. In addition, several microRNAs, such as miR-12-3p and miR-750-3p, were also modulated in the investigated conditions. Overall, this work reveals a molecular footprint underlying spinosad response in Colorado potato beetles and provides novel leads that could be targeted as part of RNAi-based approaches to control this insect pest.
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Suicidio , Humanos , Factores de Riesgo , Autoimagen , Ideación Suicida , Intento de SuicidioRESUMEN
OBJECTIVE: Anger has been identified as a risk factor for suicide in veterans with posttraumatic stress disorder (PTSD), theoretically because it erodes social support networks. In romantic relationships, the transactional properties of anger on suicidal ideation (SI) have not been explored. METHODS: Veterans (n = 138) and their significant others (S-Os; total N = 276) completed assessments on anger and SI as part of a baseline assessment in a treatment outcome study for veterans with PTSD and their S-Os. Actor Partner Interdependence Moderation Model (APIMoM) with Multilevel Modeling (MLM) was conducted. RESULTS: Veteran and S-Os verbal and anger expression were associated with veteran's SI, while S-Os' physical anger expression was associated with veteran's SI. S-Os' feeling angry was associated with veteran's SI. Veteran angry temperament was associated with veteran SI. DISCUSSION: Anger should be considered an assessment and treatment target in veterans with PTSD with SI and their S-Os.
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Ira , Relaciones Interpersonales , Parejas Sexuales/psicología , Ideación Suicida , Veteranos/psicología , Adulto , Femenino , Humanos , Masculino , Persona de Mediana Edad , Factores de Riesgo , Veteranos/estadística & datos numéricosRESUMEN
Intimate relationship distress has been identified as one of the most common precipitants of suicidal thoughts for U.S. military populations. Sexual functioning is associated with relationship distress and has recently been identified as a predictor of suicidal ideation with female military personnel; however, no studies have examined this association among a treatment-seeking sample of male and female veterans and their partners. Couples (N = 138) completed baseline assessments of sexual functioning, relationship functioning, suicidal ideation, and mental health prior to evaluation for engagement in a couples-based PTSD treatment study. Analyses revealed that decreased sexual pleasure and decreased frequency of sexual intercourse were associated with more recent suicidal ideation for male veterans, whereas increased sexual frequency was marginally associated with increased suicidal ideation for female veterans, controlling for PTSD and depression symptoms, relationship satisfaction, and medications. These findings stress the importance of assessing sexual functioning as a risk factor for suicide and taking into consideration the possibility that sexual functioning may be protective or predictive of suicidality depending on the person and context.