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1.
J Neurosci ; 41(20): 4524-4535, 2021 05 19.
Artículo en Inglés | MEDLINE | ID: mdl-33846232

RESUMEN

Ca2+-dependent activator protein for secretion 2 (CAPS2) regulates dense-core vesicle (DCV) exocytosis to facilitate peptidergic and catecholaminergic transmitter release. CAPS2 deficiency in mice has mild neuronal effects but markedly impairs social behavior. Rare de novo Caps2 alterations also occur in autism spectrum disorder, although whether CAPS2-mediated release influences social behavior remains unclear. Here, we demonstrate that CAPS2 is associated with DCV exocytosis-mediated release of the social interaction modulatory peptide oxytocin (OXT). CAPS2 is expressed in hypothalamic OXT neurons and localizes to OXT nerve projection and OXT release sites, such as the pituitary. Caps2 KO mice exhibited reduced plasma albeit increased hypothalamic and pituitary OXT levels, indicating insufficient release. OXT neuron-specific Caps2 conditional KO supported CAPS2 function in pituitary OXT release, also affording impaired social interaction and recognition behavior that could be ameliorated by exogenous OXT administered intranasally. Thus, CAPS2 appears critical for OXT release, thereby being associated with social behavior.SIGNIFICANCE STATEMENT The role of the neuropeptide oxytocin in enhancing social interaction and social bonding behavior has attracted considerable public and neuroscientific attention. A central issue in oxytocin biology concerns how oxytocin release is regulated. Our study provides an important insight into the understanding of oxytocin-dependent social behavior from the perspective of the CAPS2-regulated release mechanism.


Asunto(s)
Conducta Animal/fisiología , Proteínas de Unión al Calcio/metabolismo , Exocitosis/fisiología , Proteínas del Tejido Nervioso/metabolismo , Oxitocina/metabolismo , Conducta Social , Animales , Hipotálamo/metabolismo , Ratones , Ratones Noqueados , Vesículas Secretoras/metabolismo
2.
Nicotine Tob Res ; 24(8): 1310-1314, 2022 07 13.
Artículo en Inglés | MEDLINE | ID: mdl-35271721

RESUMEN

INTRODUCTION: The number of cigarettes smoked per day (CPD) is a component of commonly used nicotine dependence measures and often used as a smoking cessation treatment outcome. Yet relighting (ie, smoking used cigarette butts) is not usually considered when CPD is assessed, which may underestimate nicotine dependence and result in an inaccurate picture of smoking behaviors. AIMS AND METHODS: Data from a randomized controlled trial of a smoking cessation intervention were used. Fagerström Test for Cigarette Dependence (FTCD), CPD, and the frequency of smoking (number of smoking episodes/day) assessed at baseline and 3-month follow-up were used. RESULTS: Participants were 49 adults with mood disorders who smoke daily receiving outpatient psychiatric treatment. At baseline, 27 (55.1%) participants reported relighting cigarettes, and 6 (27.3%) of those who did not report relighting at baseline reported relighting at 3-month follow-up. Replacing CPD with the frequency of smoking to recalculate the total FTCD score increased the score for 21 participants (43%). The mean FTCD scores increased from 4.61 to 5.16, from a classification of low to medium dependence, and 16 participants (33%) moved up in the dependence classification. Of the 31 participants who reported a >=50% reduction in CPD at 3-month follow-up, 5 (16%) did not achieve the outcome of >=50% reduction in the frequency of smoking per day. CONCLUSIONS: In this sample of adults with mood disorders who smoke, over half reported relighting cigarettes. Results underscore the importance of incorporating the frequency of smoking/relighting when assessing nicotine dependence and patterns of smoking behaviors in high-risk populations. IMPLICATIONS: This is the first study to investigate the patterns of relighting behavior and its impact on nicotine dependence and smoking cessation treatment outcome measures among treatment-seeking adults with mood disorders who smoke. The majority were relighting, and over a quarter of those who did not report relighting at baseline subsequently reported relighting in the context of a quit attempt. The findings demonstrate that overlooking relighting may underestimate nicotine dependence and overestimate the rates of those who have made meaningful changes in smoking behavior. Incorporating the frequency of smoking/relighting may help to more accurately capture nicotine dependence and patterns of smoking behavior among high-risk populations.


Asunto(s)
Cese del Hábito de Fumar , Productos de Tabaco , Tabaquismo , Adulto , Humanos , Trastornos del Humor/terapia , Nicotina , Cese del Hábito de Fumar/métodos , Nicotiana , Tabaquismo/psicología , Tabaquismo/terapia , Resultado del Tratamiento
3.
Nicotine Tob Res ; 24(6): 881-889, 2022 04 28.
Artículo en Inglés | MEDLINE | ID: mdl-34918163

RESUMEN

INTRODUCTION: Smokers with mental illness report elevated levels of stress and negative affect. Craving is often cited as a key precipitant of smoking. Coping with stress has been associated with reduced cravings among smokers attempting to quit. However, the effect of coping with stress on negative affect and craving among smokers with mental illness is not well understood. This study investigated whether coping with stress predicts lower subsequent craving, mediated by reduced negative affect, among socioeconomically disadvantaged smokers with mood disorders. AIMS AND METHODS: This study used ecologically momentary assessment (EMA) data from a randomized controlled trial involving smokers with mood disorders. The final sample included 39 participants. RESULTS: Traditional mediation path analyses showed that coping with stress predicts lower craving (p = .02) through its impact on negative affect (p < .001) for the contemporaneous model (ie, when craving was measured at the same report as coping). However, coping with stress did not have a prospective effect on craving (ie, when craving was measured at the next report, up to 12 hours later) (p = .11). CONCLUSIONS: The results suggest that coping with stress reduces craving through negative effect, but only for a limited timeframe. The findings could guide future research on the length of time that the effect of coping lasts and research on interventions to increase coping with stress among smokers with mental illness. IMPLICATIONS: This is the first study to use EMA to demonstrate that coping with stressful events effectively reduces craving through reducing negative affect among smokers with mood disorders. This finding suggests that individuals heavily burdened with stress and negative affect benefit from coping with stress. We utilized within-subject analyses of EMA data which allowed us to understand these effects within an individual near real time. Our sample is hard to reach and ethnoculturally diverse. Findings could guide intervention research on helping smokers with mental illness cope when experiencing stress.


Asunto(s)
Ansia , Fumadores , Adaptación Psicológica , Afecto , Humanos , Trastornos del Humor , Estudios Prospectivos
4.
Pain Med ; 22(12): 3080-3088, 2021 Dec 11.
Artículo en Inglés | MEDLINE | ID: mdl-34411246

RESUMEN

OBJECTIVE: To describe first-year trajectories of medical cannabis use and identify characteristics associated with patterns of use in a cohort of adults using opioids for chronic pain. DESIGN: Latent class trajectory analysis of a prospective cohort study using data on the 14-day frequency of medical cannabis use. SETTING: A large academic medical center and four medical cannabis dispensaries in the New York City metropolitan area. SUBJECTS: Adults with chronic pain using opioids and newly certified for medical cannabis in New York between 2018 and 2020. METHODS: Using latent class trajectory analysis, we identified clusters of participants based on the 14-day frequency of medical cannabis use. We used logistic regression to determine factors associated with cluster membership, including sociodemographic characteristics, pain, substance use, and mental health symptoms. RESULTS: Among 99 participants, the mean age was 53 years; 62% were women, and 52% were White. We identified three clusters of medical cannabis use: infrequent use (n = 30, mean use = 1.5 days/14-day period), occasional use (n = 28, mean = 5.7 days/14-day period), and frequent use (n = 41, mean = 12.1 days/14-day period). Within clusters, use patterns did not vary significantly over 52 weeks. Differences were observed in two sociodemographic variables: Frequent (vs infrequent) use was associated with non-Hispanic White race/ethnicity (adjusted odds ratio 4.54, 95% confidence interval 1.49-14.29), while occasional (vs infrequent) use was associated with employment (adjusted odds ratio 13.84, 95% confidence interval 1.21-158.74). CONCLUSIONS: Three clusters of medical cannabis use patterns emerged and were stable over time. Results suggest that structural factors related to race/ethnicity and employment may be major drivers of medical cannabis use, even among adults certified for its use.


Asunto(s)
Cannabis , Dolor Crónico , Marihuana Medicinal , Adulto , Analgésicos Opioides/uso terapéutico , Dolor Crónico/tratamiento farmacológico , Dolor Crónico/epidemiología , Femenino , Humanos , Masculino , Marihuana Medicinal/uso terapéutico , Persona de Mediana Edad , Ciudad de Nueva York/epidemiología , Estudios Prospectivos
5.
J Subst Use ; 26(6): 669-676, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-34899051

RESUMEN

Smoking prevalence among individuals in substance use treatment remains higher than in the general population. Given that many smokers in substance use treatment are reluctant to quit smoking, it is important to understand the factors that impede smokers' readiness to quit. The current study used baseline data from a randomized controlled trial involving 60 adult smokers receiving substance use treatment to investigate relations between the severity of substance use problems (SSUP), perceived stress (PS), concerns about relapse (i.e., concerns that quitting smoking would hurt one's recovery process (CR)), and readiness to quit smoking. This study also investigated moderating roles of concerns about relapse and gender. Regression analyses showed a significant main effect of concerns about relapse on readiness to quit in the next 30 days, but no effect for either severity of substance use problems, perceived stress, or the SSUPxCR interaction. There were significant interaction effects between PS and both gender and CR. Among men and those with lower concerns about relapse, higher perceived stress was significantly associated with lower readiness to quit. Findings suggest that psychoeducation to alleviate concerns that quitting smoking could limit substance use recovery could be beneficial. Stress management interventions may be especially beneficial to men.

6.
Subst Use Misuse ; 55(4): 590-601, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-31760869

RESUMEN

Khat, a psychostimulant cultivated and commonly used in Eastern Africa and the Arabian penin-sula, has a longstanding history of use embedded within the cultures of these regions. Due to changing patterns of use and the adverse effects of dependence, khat has become a growing pub- lic health concern. Despite extensive findings regarding the detrimental psychiatric, physical, and social consequences of khat dependence, research on interventions in this area is glaringly sparse. The present paper aims to summarize the consequences of chronic khat use and review existing research on interventions.


Asunto(s)
Catha/efectos adversos , Estimulantes del Sistema Nervioso Central/efectos adversos , Trastornos Relacionados con Sustancias , Humanos , Trastornos Relacionados con Sustancias/terapia
7.
Subst Use Misuse ; 54(10): 1599-1610, 2019.
Artículo en Inglés | MEDLINE | ID: mdl-31116065

RESUMEN

Background: Understanding the relations between e-cigarette prices and e-cigarette/cigarette use may shed light on the possible impact of e-cigarette regulations on public health. Objectives: This study aimed to assess potential impacts of e-cigarette price changes on vaping and smoking behaviors by smoking status (current, former, and never smokers) and e-cigarette type (pre-filled only vs. refillable). Methods: A total of 918 US-based adult e-cigarette users completed an online survey, designed to assess behavioral intention of e-cigarette/cigarette use in hypothetical situations with varying prices of e-cigarettes, in 2017. Results: With reduction in e-cigarette prices, more than 50% of current smokers reported they would reduce or quit smoking, but with greater increases in price, the rates of not only those who would quit (12.5-19.4%), but also those who would increase smoking rose (15.1-25.1%). Current smokers (vs. former/never) were more likely to increase e-cigarette use at reduced e-cigarette prices. Among current smokers, pre-filled users were less likely to quit smoking with reduced prices. At higher prices, pre-filled users were more likely to quit e-cigarettes (former smokers), but also more likely to start smoking (never smokers). Among former smokers, recent quitters were more likely to restart smoking with any e-cigarette price changes, and less likely to reduce or quit e-cigarettes with increased prices. Conclusions: Both smoking and e-cigarette use seem to be sensitive to e-cigarette price changes. Increases in e-cigarette price may have both positive and negative effects on smoking behavior, and e-cigarette price changes may disproportionately affect pre-filled users and recent quitters.


Asunto(s)
Comercio/estadística & datos numéricos , Sistemas Electrónicos de Liberación de Nicotina/economía , Sistemas Electrónicos de Liberación de Nicotina/estadística & datos numéricos , Fumadores/psicología , Fumar/economía , Vapeo/economía , Adulto , Comercio/tendencias , Femenino , Humanos , Intención , Masculino , Cese del Hábito de Fumar/estadística & datos numéricos , Encuestas y Cuestionarios , Adulto Joven
8.
Nicotine Tob Res ; 20(5): 575-582, 2018 04 02.
Artículo en Inglés | MEDLINE | ID: mdl-28505303

RESUMEN

Introduction: Aerobic exercise may improve smoking abstinence via reductions in craving and negative affect and increases in positive moods. Acute changes in craving and affect before and after structured exercise sessions have not been examined during the weeks prior to and following quit attempts nor has smoking status been examined in relation to these effects. Given that regular cigarette smoking can be perceived as affect enhancing and craving reducing, it is not known whether exercise could contribute additional affective benefit beyond these effects. Method: Participants (N = 57; 68.4% women) were low-active daily smokers randomized to cessation treatments plus either group-based aerobic exercise (AE) or a health-education control (HEC). Mood, anxiety, and craving were assessed before and after each intervention session for each of the 12 weeks. Carbon monoxide (CO) breath samples ≤ 5ppm indicated smoking abstinence. Results: During the prequit sessions, significantly greater decreases in anxiety following AE sessions relative to HEC sessions were observed. Changes in mood and craving were similar after AE and HEC sessions prior to quitting. Postquit attempt, significant reductions in craving and anxiety were observed after AE sessions but not following HEC. During the postquit period, positive mood increased following AE sessions relative to HEC only among individuals who were abstinence on that day. Conclusions: AE may be effective in acutely reducing anxiety prior to a quit attempt and both anxiety and craving following the quit attempt regardless of abstinence status. The mood-enhancing effects of AE may occur only in the context of smoking abstinence. Implications: The current findings underscore the importance of examining the acute effects of aerobic exercise prior to and after a cessation attempt and as a function of smoking status. Given the equivocal results from previous studies on the efficacy of exercise for smoking cessation, increasing our understanding of how aerobic exercise produces its reinforcing benefits for smokers attempting to quit could potentially inform the refinement (e.g., timing/sequencing) of exercise interventions within smoking cessation programs.


Asunto(s)
Ansia/fisiología , Ejercicio Físico/fisiología , Cese del Hábito de Fumar/métodos , Síndrome de Abstinencia a Sustancias/terapia , Tabaquismo/terapia , Afecto , Ansiedad , Femenino , Humanos , Masculino
9.
Holist Nurs Pract ; 32(6): 316-323, 2018.
Artículo en Inglés | MEDLINE | ID: mdl-30320656

RESUMEN

This study tested the feasibility, acceptability, and preliminary effects of a mindfulness-based intervention with at-risk adolescents from a predominantly Hispanic/Latino community. Seven adolescents (57% female, 85% Hispanic/Latino) completed the mindfulness-based intervention, demonstrating feasibility, and reported acceptability as well as sustained improvements in depressive symptoms, perceived stress, and self-esteem.


Asunto(s)
Depresión/prevención & control , Depresión/terapia , Atención Plena/métodos , Adolescente , Niño , Intervención Educativa Precoz , Estudios de Factibilidad , Femenino , Hispánicos o Latinos , Humanos , Masculino , Aceptación de la Atención de Salud
10.
Am J Addict ; 26(6): 587-594, 2017 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-28800182

RESUMEN

BACKGROUND AND OBJECTIVES: The majority of individuals in substance use disorder (SUD) treatment also smoke cigarettes; yet, the availability of smoking cessation services in SUD treatment remains limited. In this study, we developed and piloted a brief intervention for smokers in SUD treatment intended to motivate engagement in tobacco quitline treatment (TIME-TQ). METHODS: First, we interviewed 19 smokers in SUD treatment to inform the development of TIME-TQ (Phase 1). Second, we delivered a prototype TIME-TQ to 16 smokers in the same SUD treatment program and followed them for 3 months post-discharge (Phase 2). RESULTS: Feedback from Phase 1 participants was used to refine response choices and video segments included in the prototype TIME-TQ. Phase 2 participants rated TIME-TQ high on relevance, interest, respectfulness, and helpfulness. Additionally, they reported significant increases in readiness to quit and perceived importance of quitting after receiving TIME-TQ. A total of 8 of the 16 accepted a quitline referral, and 8 of 13 reached for follow-up (four referral acceptors, four decliners) reported efforts to quit or reduce smoking during the follow-up period. However, only three received quitline counseling and none achieved a sustained period of abstinence. CONCLUSIONS AND SCIENTIFIC SIGNIFICANCE: Our results suggest that TIME-TQ activated these patients to quit smoking, but our referral method (standard fax referral) was unsuccessful in helping participants fully engage in quitline treatment or achieving a period of abstinence. SCIENTIFIC SIGNIFICANCE: We are now conducting an RCT to evaluate TIME-TQ with a revised referral procedure intended to increase treatment engagement and, ultimately, abstinence rates. (Am J Addict 2017;26:587-594).


Asunto(s)
Computadoras de Mano , Líneas Directas , Cese del Hábito de Fumar , Fumar/psicología , Trastornos Relacionados con Sustancias , Adulto , Consejo/métodos , Femenino , Líneas Directas/métodos , Líneas Directas/organización & administración , Humanos , Masculino , Persona de Mediana Edad , Motivación , Participación del Paciente/métodos , Participación del Paciente/psicología , Proyectos Piloto , Cese del Hábito de Fumar/métodos , Cese del Hábito de Fumar/psicología , Prevención del Hábito de Fumar/métodos , Trastornos Relacionados con Sustancias/complicaciones , Trastornos Relacionados con Sustancias/psicología
11.
J Behav Med ; 40(6): 964-977, 2017 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-28593427

RESUMEN

Prior work has suggested a paradoxical positive relationship between the risk behavior alcohol use and the health behavior exercise, particularly in young adults. Though seldom tested, different theoretical perspectives exist on the mechanisms that may explain the positive relationship. The aims of this study were to test theorized mechanisms of association, including common causes shared by both behaviors (e.g., personality, motives, affective), compensatory processes such as exercising to compensate for calories from alcohol consumption, and methodological confounds (e.g., between vs. within subject effects) in a college sample (N = 132; 56.3% male; 76% Caucasian; M age = 19.15, SD = 0.99) using a cross-sectional design and time line follow back methods. A positive, between-subjects association between alcohol and exercise was found and explained by exercising to compensate for calories of alcohol consumption, enhancement motives, and physical activity enjoyment. However, we also observed a significant and negative within-subjects association between the two constructs, suggesting that, on a given day, individuals who exercise more tended to drink less. Furthermore, individuals who exercised more during the week tended to have declines in weekend drinking over time. Results suggest a complex relationship between exercise and alcohol use among young adults, and highlight the importance of distinguishing between and within subject processes, as well as the temporal ordering of the two behaviors. Implications are discussed in regard to theory, prevention, and intervention.


Asunto(s)
Consumo de Alcohol en la Universidad/psicología , Ejercicio Físico/psicología , Autoimagen , Estudiantes/psicología , Estudios Transversales , Femenino , Humanos , Relaciones Interpersonales , Masculino , Estudiantes/estadística & datos numéricos , Universidades , Adulto Joven
12.
Psychol Health Med ; 22(9): 1127-1135, 2017 10.
Artículo en Inglés | MEDLINE | ID: mdl-28103704

RESUMEN

Quitting smoking and aerobic exercise each improve health. Although smokers may be concerned that quitting smoking will reduce their quality of life (QOL), recent research has shown that cessation is associated with QOL benefits. Elements of smoking cessation interventions, such as exercise, may contribute to changes in QOL. However, it is unknown whether initiating exercise in the context of smoking cessation is associated with greater or different effects on QOL than smoking cessation alone. The current study is a secondary analysis of data from a randomized trial (n = 61) of an exercise intervention for smoking cessation. We hypothesized that smoking abstinence and engagement in exercise would have positive, additive effects on QOL at end-of-treatment, 6- and, 12-month follow-ups. Sedentary adult smokers were randomized to the exercise intervention or a health education control (HEC) group. Additionally, all participants received smoking cessation counseling and nicotine patches. Data were analyzed using actual engagement in exercise, rather than group assignment as a proxy for exercise engagement, because some HEC participants also began exercising. Abstinence was positively associated with higher total and physical health QOL at follow-up. Exercise was not associated with total QOL and only marginally associated with physical health QOL, but was positively related to overall sense of well-being. Emphasizing that smoking cessation is associated with higher QOL may help motivate smokers to initiate quit attempts.


Asunto(s)
Terapia por Ejercicio/métodos , Ejercicio Físico/psicología , Calidad de Vida/psicología , Cese del Hábito de Fumar/psicología , Dispositivos para Dejar de Fumar Tabaco , Adulto , Femenino , Humanos , Masculino , Persona de Mediana Edad , Cese del Hábito de Fumar/métodos
13.
Biosci Biotechnol Biochem ; 80(2): 376-85, 2016.
Artículo en Inglés | MEDLINE | ID: mdl-26364670

RESUMEN

Serratia marcescens 2170 produces three different types of chitinases and chitin-binding protein CBP21. We found that transposon insertion into the 5' untranslated region (5' UTR) of chiPQ-ctb led to defective chitinase and CBP21 production. ChiX small RNA possessed the complementary sequence of the 5' UTRs of the chiPQ-ctb and chiR and repressed the expression of chiP and chiR. ChiX was detected in a medium containing glucose, glycerol, GlcNAc, and (GlcNAc)2, but the expression of both chiP and chiR was only observed in a medium containing (GlcNAc)2. ∆chiX mutant produced chitinases, CBP21, and chitobiase without induction. chiP transcripts were more abundant than those of chiR or chiX in a medium containing (GlcNAc)2. These results suggest that the constitutively expressed ChiX binds to the highly abundant chiP 5' UTR, thereby leading to the induction of chiR mRNA translation and the subsequent expression of chitinases and CBP21.


Asunto(s)
Proteínas Bacterianas/genética , Quitina/metabolismo , Quitinasas/genética , Regulación Bacteriana de la Expresión Génica , ARN Pequeño no Traducido/genética , Serratia marcescens/genética , Regiones no Traducidas 5' , Acetilglucosamina/metabolismo , Acetilglucosaminidasa/genética , Acetilglucosaminidasa/metabolismo , Proteínas Bacterianas/metabolismo , Secuencia de Bases , Proteínas Portadoras/genética , Proteínas Portadoras/metabolismo , Quitinasas/metabolismo , Glucosa/metabolismo , Glicerol/metabolismo , Hidrólisis , Péptidos y Proteínas de Señalización Intracelular , Isoenzimas/genética , Isoenzimas/metabolismo , Datos de Secuencia Molecular , Biosíntesis de Proteínas , ARN Pequeño no Traducido/metabolismo , Serratia marcescens/metabolismo
14.
J Psychiatr Res ; 173: 175-182, 2024 May.
Artículo en Inglés | MEDLINE | ID: mdl-38547739

RESUMEN

Alcohol dependence poses a global health threat associated with aging and reduced life expectancy. Recently, aging research through deoxyribonucleic acid (DNA) methylation has gained attention. New epigenetic clocks have been developed; however, no study has investigated GrimAge components, GrimAge2 components and DunedinPACE in patients with alcohol dependence. In this study, we aimed to perform epigenetic clock analysis to evaluate epigenetic age acceleration and DNA methylation-based age-predictive components in patients with alcohol dependence and controls. We utilized publicly available DNA methylation data (GSE98876) for our analysis. Additionally, we compared the values of the same items before and after the patients underwent a treatment program. The dataset comprised 23 controls and 24 patients. We observed that DunedinPACE accelerated more in patients with alcohol dependence. AgeAccelGrim and AgeAccelGrim2 decelerated more after the treatment program than before, and beta-2-microglobulin and Cystatin C decreased after the treatment program than before. These findings are crucial as they affect the cranial nerve area, potentially contributing to cognitive dysfunction and psychiatric symptoms in patients with alcohol dependence.


Asunto(s)
Alcoholismo , Disfunción Cognitiva , Humanos , Alcoholismo/genética , Envejecimiento/genética , Epigenómica , Epigénesis Genética , Metilación de ADN
15.
Artículo en Inglés | MEDLINE | ID: mdl-38789642

RESUMEN

Preclinical research with rodents suggests that the L-type calcium channel blocker isradipine can enhance long-term extinction of conditioned place preference for addictive substances when it is administered in conjunction with extinction training. Although isradipine alone, which is FDA-approved for hypertension, has not shown a direct effect on craving in human drug users, its potential to augment behavioral treatments designed to reduce craving remains unknown. We conducted a triple-blind, randomized placebo-controlled pilot clinical trial of isradipine combined with a novel virtual reality cue exposure therapy (VR-CET) approach with multimodal cues that targeted craving. After 24 hours of abstinence, 78 adults with an ongoing history of daily cigarette use received isradipine (n = 40) or placebo (n = 38) and reported craving levels after each of 10 trials of VR-CET. Consistent with pre-registered hypotheses, the isradipine group had significantly lower mean craving across cue exposure trials at the medication-free 24-hour follow-up (d = -0.42, p = 0.046). There were no serious adverse events; however, side effects such as headache and dizziness occurred more frequently in the isradipine group. The findings of the current study support follow-up clinical trials that specifically test the efficacy of isradipine-augmented VR-CET for reducing smoking relapse rates after an initial quit attempt. clinicaltrials.gov: NCT03083353.

16.
Nicotine Tob Res ; 15(12): 2005-15, 2013 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-23884317

RESUMEN

INTRODUCTION: An inability to tolerate distress is a significant predictor of early smoking lapse following a cessation attempt. We conducted a preliminary randomized controlled trial to compare a distress tolerance (DT) treatment that incorporated elements of exposure-based therapies and Acceptance and Commitment Therapy to standard smoking cessation treatment (ST). METHODS: Smokers with a history of early lapse in prior quit attempts received either DT (N = 27; 9 2-hr group and 6 50-min individual sessions) or ST (N = 22; 6 90-min group and 1 20-min individual session), plus 8 weeks of transdermal nicotine patch. RESULTS: At the end of behavioral treatment, odds of abstinence among participants receiving DT were 6.46 times greater than among participants receiving ST (66.7% vs. 31.8%), equivalent to a medium- to large-effect size. Odds of abstinence for DT were still 1.73 times greater at 8 weeks, corresponding to a small- to medium-effect size, although neither this difference nor those at 13 and 26 weeks were statistically significant. Furthermore, of those who lapsed to smoking during the first week postquit, DT participants had more than 4 times greater odds of abstinence than ST participants at the end of treatment. Relative to ST, DT participants also reported a larger decrease in experiential avoidance, a hypothesized DT treatment mediator, prior to quit day. The trajectory of negative mood and withdrawal symptoms in DT differed from ST and was largely consistent with hypotheses. CONCLUSIONS: Reasons for the decrease in abstinence in DT after treatment discontinuation and suggestions for future research are discussed.


Asunto(s)
Nicotina/administración & dosificación , Cese del Hábito de Fumar/métodos , Fumar/terapia , Tabaquismo/terapia , Adolescente , Adulto , Afecto , Anciano , Terapia Conductista , Femenino , Estudios de Seguimiento , Humanos , Masculino , Persona de Mediana Edad , Fumar/psicología , Cese del Hábito de Fumar/psicología , Síndrome de Abstinencia a Sustancias/psicología , Síndrome de Abstinencia a Sustancias/terapia , Factores de Tiempo , Dispositivos para Dejar de Fumar Tabaco , Tabaquismo/psicología , Resultado del Tratamiento , Adulto Joven
17.
Artículo en Inglés | MEDLINE | ID: mdl-36961410

RESUMEN

Background: Over the past decade, there has been increased utilization of medical cannabis (MC) in the United States. Few studies have described sociodemographic and clinical factors associated with MC use after certification and more specifically, factors associated with use of MC products with different cannabinoid profiles. Methods: We conducted a longitudinal cohort study of adults (N=225) with chronic or severe pain on opioids who were newly certified for MC in New York State and enrolled in the study between November 2018 and January 2022. We collected data over participants' first 3 months in the study, from web-based assessment of MC use every 2 weeks (unit of analysis). We used generalized estimating equation models to examine associations of sociodemographic and clinical factors with (1) MC use (vs. no MC use) and (2) use of MC products with different cannabinoid profiles. Results: On average, 29% of the participants used predominantly high delta-9-tetrahydrocannabinol (THC) MC products within the first 3 months of follow-up, 30% used other MC products, and 41% did not use MC products. Non-Hispanic White race, pain at multiple sites, and past 30-day sedative use were associated with a higher likelihood of MC use (vs. no MC use). Current tobacco use, unregulated cannabis use, and enrollment in the study during the COVID-19 pandemic were associated with a lower likelihood of MC use (vs. no MC use). Among participants reporting MC use, female gender and older age were associated with a lower likelihood of using predominantly high-THC MC products (vs. other MC products). Conclusion: White individuals were more likely to use MC after certification, which may be owing to access and cost issues. The findings that sedative use was associated with greater MC use, but tobacco and unregulated cannabis were associated with less MC use, may imply synergism and substitution that warrant further research. From the policy perspective, additional measures are needed to ensure equitable availability of and access to MC. Health practitioners should check patients' history and current use of sedative, tobacco, and unregulated cannabis before providing an MC recommendation and counsel patients on safe cannabis use. clinicaltrials.gov (NCT03268551).

18.
J Pediatr Adolesc Gynecol ; 35(3): 305-313, 2022 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-34742935

RESUMEN

STUDY OBJECTIVE: The purpose of this study was to examine the feasibility, acceptability, and preliminary efficacy of a mindfulness-based healthy lifestyle self-management intervention with adolescents and young adults diagnosed with polycystic ovary syndrome (PCOS). DESIGN: A pilot randomized controlled trial using a pre-post design was used. SETTING: Central Texas. PARTICIPANTS: Individuals aged 14-23 with a diagnosis of PCOS. INTERVENTIONS: The PCOS Kind Mind Program integrates a manualized mindfulness training program (Taming the Adolescent Mind) with health education in 4 key areas of self-management and health promotion: (1) medication adherence, (2) nutrition, (3) physical activity, and (4) sleep. MAIN OUTCOME MEASURES: Psychological distress, mindfulness, physical activity strategies, nutrition, and exercise self-efficacy. RESULTS: Linear regression models revealed that those in the PCOS Kind Mind condition reported significantly higher nutrition self-efficacy (ß = 6.50, 95% CI, 1.71-11.28, P = 0.013, d = 0.48), physical activity strategies (ß = 0.41, 95% CI, 0.04-0.79, P = 0.040, d = 0.67), and physical activity self-efficacy (ß = 0.48, 95% CI, 0.07-0.88, P = 0.028, d = 0.46). CONCLUSION: The PCOS Kind Mind Program improved self-efficacy in the key areas of nutrition and physical activity and increased physical activity strategies in adolescents and young people with PCOS. These findings are encouraging and suggest the need for larger-scale, randomized controlled trials with longer-term follow-up to more robustly evaluate the effects of the PCOS Kind Mind Program on the psychological and physiological health of adolescents and young people with PCOS.


Asunto(s)
Atención Plena , Síndrome del Ovario Poliquístico , Adolescente , Ejercicio Físico , Femenino , Estilo de Vida Saludable , Humanos , Síndrome del Ovario Poliquístico/complicaciones , Síndrome del Ovario Poliquístico/diagnóstico , Síndrome del Ovario Poliquístico/terapia , Autoeficacia , Adulto Joven
19.
Exp Clin Psychopharmacol ; 30(5): 653-665, 2022 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-34291992

RESUMEN

Cigarette smoking disproportionately affects individuals with mood disorders, but smoking cessation interventions have modest effects in this population. Home mindfulness practice during abstinence incentivized via contingency management (CM) may help those in affective distress quit smoking. METHOD: Adult smokers receiving outpatient psychiatric treatment for mood disorders were randomized to receive a smartphone-assisted mindfulness-based smoking cessation intervention with contingency management (SMI-CM, n = 25) or enhanced standard treatment (EST, n = 24) with noncontingent rewards. Participants in SMI-CM were prompted to practice audio-guided mindfulness five times per day for 38 days (vs. no comparison intervention in EST), and received monetary incentives for carbon monoxide (CO) ≤ 6 ppm. The primary outcome was biochemically verified 7-day point prevalence abstinence rates 2, 4, and 13 weeks after a target quit day. RESULTS: Of the 49 participants, 63.3% were Latinx and 30.6% Black; 75.5% reported household incomes < $25,000. Abstinence rates for SMI-CM were 40.0%, 36.0%, and 16.0% versus 4.2%, 8.3%, and 4.2% in EST at weeks 2, 4, and 13. A generalized estimating equations (GEE) model showed significant overall differences in abstinence rates in SMI-CM versus EST (adjusted odds ratio [AOR] = 8.12, 95% CI = 1.42-46.6, p = .019). Those who received SMI-CM reported significantly greater reduction in smoking-specific experiential avoidance from baseline to 3 days prior to quit date (ß = -7.21, 95% CI = -12.1-2.33, p = .006). CONCLUSIONS: SMI-CM may increase cessation rates among smokers with mood disorders, potentially through reduced smoking-specific experiential avoidance. SMI-CM is a promising intervention, and warrants investigation in a fully powered randomized controlled trial (RCT). (PsycInfo Database Record (c) 2022 APA, all rights reserved).


Asunto(s)
Atención Plena , Cese del Hábito de Fumar , Adulto , Monóxido de Carbono , Humanos , Trastornos del Humor/terapia , Proyectos Piloto , Teléfono Inteligente , Fumadores/psicología , Cese del Hábito de Fumar/psicología
20.
J Smok Cessat ; 2021: 6697404, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-34306237

RESUMEN

Smoking-related diseases (e.g., lung cancer) are the leading cause of mortality in HIV-infected patients. While many PLWH who smoke report a desire to quit, a majority of them have low readiness to quit. This study used logistic and linear regression to examine the relations among two (continuous vs. binary) measures of readiness to quit, smoking cessation self-efficacy (SE), quality of life (QoL), and perceived vulnerability (PV) using baseline data from 100 PLWH who smoke who participated in a clinical trial. Results showed no significant main effects (SE, QoL, and PV) or interaction effects (SE × QoL and SE × PV) on a continuous measure of readiness to quit. However, a follow-up analysis revealed that SE had a curvilinear effect on readiness to quit such that self-efficacy was positively associated with readiness to quit except at the highest levels of self-efficacy where readiness to quit declined. Greater SE significantly increased the likelihood of reporting readiness to quit (yes/no) among those with low QoL or high PV. For PLWH who smoke, improving self-efficacy may increase readiness to quit especially among those with lower quality of life. Psychoeducation tailored to PLWH designed to reduce unrealistic invulnerability to smoking-related diseases along with interventions that target self-efficacy may improve readiness to quit.

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