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1.
Ophthalmology ; 124(1): 53-60, 2017 01.
Artigo em Inglês | MEDLINE | ID: mdl-28079022

RESUMO

PURPOSE: Lifitegrast is a lymphocyte function-associated antigen-1 antagonist developed to reduce inflammation in dry eye disease (DED). We report the results of OPUS-3 (NCT02284516), a phase III study evaluating the efficacy and safety of lifitegrast versus placebo in participants with DED. DESIGN: Twelve-week, phase III, randomized, double-masked, multicenter, placebo-controlled study. PARTICIPANTS: Adults aged ≥18 years with Schirmer tear test (without anesthesia) ≥1 and ≤10 mm, corneal fluorescein staining score ≥2.0 (0-4 scale), eye dryness score (EDS) ≥40 (0-100 visual analogue scale [VAS]), and history of artificial tear use within 30 days of study entry. METHODS: After a 14-day placebo run-in, participants were randomized 1:1 to lifitegrast ophthalmic solution 5.0% or placebo twice daily for 84 days. MAIN OUTCOME MEASURES: The primary efficacy end point was change from baseline to day 84 in EDS. Key secondary efficacy end points were change from baseline to days 42 and 14 in EDS. Other secondary efficacy end points included additional VAS items (burning/stinging, itching, foreign body sensation, eye discomfort, photophobia, pain), ocular discomfort score (ODS), and safety/tolerability of lifitegrast versus placebo. RESULTS: In the study, 711 participants were randomized: placebo, 356; lifitegrast, 355 (intention-to-treat [ITT] population). At day 84, lifitegrast-treated participants experienced significantly greater improvement from baseline in EDS versus those receiving placebo (treatment effect [TE], 7.16; 95% confidence interval [CI], 3.04-11.28; P = 0.0007). Mean changes from baseline in EDS also significantly favored lifitegrast on days 42 (TE, 9.32; 95% CI, 5.44-13.20; P < 0.0001) and 14 (TE, 7.85; 95% CI, 4.33-11.37; P < 0.0001). No statistically significant differences were observed in ODS between treatment groups at days 84, 42, or 14. A greater improvement was observed in lifitegrast-treated participants at day 42 in itching (nominal P = 0.0318), foreign body sensation (nominal P = 0.0418), and eye discomfort (P = 0.0048) versus participants receiving placebo. Most treatment-emergent adverse events were mild to moderate in severity; no serious ocular adverse events were reported. CONCLUSIONS: Lifitegrast significantly improved symptoms of eye dryness, as measured by EDS, versus placebo in participants with DED. Improvement in EDS was observed as early as day 14. Lifitegrast appeared well tolerated.


Assuntos
Síndromes do Olho Seco/tratamento farmacológico , Soluções Oftálmicas/uso terapêutico , Fenilalanina/análogos & derivados , Sulfonas/uso terapêutico , Adulto , Idoso , Método Duplo-Cego , Dor Ocular , Feminino , Humanos , Antígeno-1 Associado à Função Linfocitária/efeitos dos fármacos , Masculino , Pessoa de Meia-Idade , Fenilalanina/uso terapêutico , Acuidade Visual
2.
J Stud Alcohol Drugs ; 85(1): 51-61, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-37796630

RESUMO

OBJECTIVE: Alcohol-related problems (e.g., physical, interpersonal, intrapersonal, impulse control, social responsibility) can have an impact on posttraumatic stress disorder (PTSD) symptoms during treatment. Evidence-based online self-help tools exist to target alcohol use and related problems and co-occurring PTSD symptoms. It is unknown to what degree individuals with varying alcohol-related problems respond differently to web-based interventions for hazardous alcohol use and PTSD. The current study evaluated specific alcohol-related problems as potential moderators of PTSD symptom changes during the VetChange online intervention while controlling for average daily alcohol use, gender, race, and age. METHOD: We conducted a secondary analysis of a randomized controlled trial that included 600 post-9/11 veterans (518 men and 82 women). Mixed-effects regression models of alcohol-related problems on PTSD severity scores over time were performed separately in an initial intervention group (IIG; n = 404) and a delayed intervention group (DIG; n = 196) that was used as a comparison condition. RESULTS: Interpersonal problems emerged as a moderator of PTSD symptom changes in IIG such that veterans endorsing greater interpersonal problems demonstrated larger reductions in PTSD symptoms throughout VetChange. There were no significant moderation effects in DIG. Non-White veterans reported significantly higher PTSD symptoms during VetChange. Post hoc analyses indicated that veterans with higher interpersonal problems were more likely to engage in online intervention content focused on identifying high-risk drinking situations and coping with symptoms. CONCLUSIONS: Findings imply that veterans reporting alcohol-related interpersonal problems may benefit the most from, and be more motivated to use, online interventions for hazardous alcohol use and PTSD symptoms.


Assuntos
Transtornos Relacionados ao Uso de Álcool , Alcoolismo , Intervenção Baseada em Internet , Transtornos de Estresse Pós-Traumáticos , Veteranos , Feminino , Humanos , Masculino , Consumo de Bebidas Alcoólicas/epidemiologia , Consumo de Bebidas Alcoólicas/terapia , Transtornos Relacionados ao Uso de Álcool/epidemiologia , Transtornos Relacionados ao Uso de Álcool/terapia , Alcoolismo/epidemiologia , Alcoolismo/terapia , Alcoolismo/complicações , Transtornos de Estresse Pós-Traumáticos/epidemiologia , Transtornos de Estresse Pós-Traumáticos/terapia , Resultado do Tratamento , Ensaios Clínicos Controlados Aleatórios como Assunto
3.
J Mov Disord ; 17(1): 82-88, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-37926510

RESUMO

OBJECTIVE: A large body of literature has examined the links between the use of dopamine replacement therapy (DRT) in Parkinson's disease (PD) and the development of "impulsive-compulsive behaviors (ICBs)." Little is known regarding the link between the development of ICBs and health-related quality of life (HRQOL). We aimed to explore the factors that are associated with poorer HRQOL, especially in relation to DRT-induced ICBs, in a sample of PD patients. METHODS: This PARKADD (PARK: PARKinson's disease; ADD: behavioral ADDictions) study was a prospective case‒control study initially designed to assess the factors associated with ICBs in PD patients. A prospective clinical follow-up was added, aiming to capture the long-term evolution of HRQOL in relation to ICBs occurring or worsening after the beginning of PD. We focused on sociodemographic and PD characteristics and the history or presence of ICBs. HRQOL was measured using the Parkinson's Disease Questionnaire-8. A multivariate linear regression was performed to identify factors related to poorer HRQOL. RESULTS: A total of 169 patients were eligible for the follow-up study. The presence of an ICB, a higher levodopa equivalent daily dose (LEDD) and a longer PD duration were significantly associated with poorer HRQOL, with an interaction between LEDD and PD duration. CONCLUSION: The presence of an ICB was related to poorer HRQOL and should be considered a crucial factor for the management of PD patients. Several studies were recently published that provide guidelines for the management of these patients, with recommendations based on two key principles: prevention and specific treatment.

4.
Ophthalmol Sci ; 4(5): 100527, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38881599

RESUMO

Purpose: To evaluate safety and tolerability of EYP-1901, an intravitreal insert containing vorolanib, a pan-VEGF receptor inhibitor packaged in a bioerodible delivery technology (Durasert E™) for sustained delivery, in patients with wet age-related macular degeneration (wAMD) previously treated with anti-VEGF therapy. Design: Phase I, multicenter, prospective, open-label, dose-escalation trial. Participants: Patients with wAMD and evidence of prior anti-VEGF therapy response. Methods: Patients received a single intravitreal injection of EYP-1901. Main Outcome Measures: The primary objective was to evaluate safety and tolerability of EYP-1901. Secondary objectives assessed biologic activity of EYP-1901 including best-corrected visual acuity (BCVA) and central subfield thickness (CST). Exploratory analyses included reduction in anti-VEGF treatment burden and supplemental injection-free rates. Results: Seventeen patients enrolled in the 440 µg (3 patients), 1030 µg (1 patient), 2060 µg (8 patients), and 3090 µg (5 patients) dose cohorts. No dose-limiting toxicity, ocular serious adverse events (AEs), or systemic AEs related to EYP-1901 were observed. There was no evidence of ocular or systemic toxicity related to vorolanib or the delivery technology. Moderate ocular treatment-emergent AEs (TEAEs) included reduced visual acuity (2/17) and retinal exudates (3/17). One patient with reduced BCVA had 3 separate reductions of 17, 18, and 16 letters, and another had a single drop of 25 letters. One severe TEAE, neovascular AMD (i.e., worsening/progressive disease activity), was reported in 1 of 17 study eyes but deemed unrelated to treatment. Mean change from baseline in BCVA was -1.8 letters and -5.4 letters at 6 and 12 months. Mean change from baseline in CST was +1.7 µm and +2.4 µm at 6 and 12 months. Reduction in treatment burden was 74% and 71% at 6 and 12 months. Of 16 study eyes, 13, 8, and 5 were injection-free up to 3, 6, and 12 months. Conclusion: In the DAVIO trial (ClinicalTrials.gov identifier, NCT04747197), EYP-1901 had a favorable safety profile and was well tolerated in previously treated eyes with wAMD. Measures of biologic activity remained relatively stable following a single EYP-1901 injection. These preliminary data support ongoing phase II and planned phase III trials to assess efficacy and safety. Financial Disclosures: The author(s) have no proprietary or commercial interest in any materials discussed in this article.

5.
Psychol Trauma ; 15(8): 1299-1306, 2023 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-35254847

RESUMO

OBJECTIVE: Rates of hazardous alcohol consumption and co-occurring posttraumatic stress disorder (PTSD) are high among returning combat veterans and may adversely affect satisfaction with life (SWL). Improving life satisfaction represents a potential secondary outcome of web-based interventions for alcohol use and PTSD. Understanding the relationship between intervention targets and SWL may help inform future interventions and provide clarity regarding how improvements are manifesting. We examined returning veterans enrolled in VetChange, an evidence-based web intervention for co-occurring alcohol use and PTSD, to determine changes in SWL over time and as a function of changes in alcohol consumption and PTSD symptoms. METHOD: Participants included 222 returning veterans who reported hazardous drinking. Veterans engaged in a nationwide implementation of VetChange and completed measures of average weekly drinks (AWD), PTSD symptoms, and SWL at baseline, 1, 3, and 6 months. We investigated the effects of changes in PTSD and AWD between baseline and 1 month on SWL over 6 months using linear mixed-effects modeling. RESULTS: Across all veterans, SWL increased by 19% over 6 months. AWD and PTSD decreased between baseline and 1 month, but only change in PTSD predicted changes in SWL over the 6-month interval. CONCLUSIONS: Reductions in PTSD symptoms within the first month of intervention use, and not reductions in drinking, predicted increased SWL over 6 months. SWL is an important marker for recovery and related quality of life, and an important assessment and intervention target of web-based interventions. Interventions may also target SWL, as improvements in SWL promote future recovery and sustained improvement. (PsycInfo Database Record (c) 2023 APA, all rights reserved).

6.
Addict Behav ; 143: 107689, 2023 08.
Artigo em Inglês | MEDLINE | ID: mdl-36924646

RESUMO

Better understanding of reasons for and against change may be an effective strategy for supporting drinking reduction or abstinence among Iraq and Afghanistan veterans. The current study explored connections between reasons for and against changing hazardous alcohol use, as well as the relative importance of a given reason. Data from 366 veterans (86% male, 77% White) between the ages of 21 and 56 (M = 31.8, SD = 7.3) were obtained from a nationwide web-based alcohol and posttraumatic stress disorder randomized clinical trial. Participant-generated reasons for and against change were used to estimate two separate network models. The network of motives for changing alcohol use was generally well connected with predominately positive associations. Veterans reporting motivation to change alcohol use to improve functioning, enhance self-worth, and decrease alcohol-related consequences tended to have higher than average motivation to reduce or abstain from alcohol use. Alternatively, the network structure of motives against changing alcohol use demonstrated a nearly equal number of positive and negative associations. Whereas reasons to cope and sleep may imply higher than average motivation to continue drinking the same, veterans reporting reasons to reduce anxiety and have fun tended to have lower than average motivation to continue drinking. The current study may inform content modifications to self-help tools to more quickly and effectively target users' motivations from the beginning. Capitalizing on intervention users' motivations early may promote sustained engagement or improve therapeutic impact among those who only use the intervention for a short period of time.


Assuntos
Intervenção Baseada em Internet , Transtornos de Estresse Pós-Traumáticos , Veteranos , Humanos , Masculino , Adulto Jovem , Adulto , Pessoa de Meia-Idade , Feminino , Transtornos de Estresse Pós-Traumáticos/terapia , Transtornos de Estresse Pós-Traumáticos/complicações , Transtornos de Ansiedade/complicações , Ansiedade , Consumo de Bebidas Alcoólicas/epidemiologia , Consumo de Bebidas Alcoólicas/terapia
7.
Neurobiol Dis ; 45(1): 305-9, 2012 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-21878391

RESUMO

We have shown that routine biopsies of the ascending colon obtained at colonoscopy allow the detection of Lewy neurites (LN) in the enteric nervous system (ENS) of Parkinson's disease (PD) patients. Although colonoscopy is a relatively safe procedure, it requires colon preparation and anesthesia. The present study was therefore undertaken to evaluate whether descending colon and rectal biopsies that are obtainable by rectosigmoidoscopy allow the detection of Lewy pathology in the ENS. A total of 9 controls and 26 PD patients were included and analyzed. Two biopsies were taken from the ascending, descending colon and rectum during the course of a total colonoscopy. Immunohistochemical analysis was performed using antibodies against phosphorylated alpha-synuclein to detect LN and neurofilaments 200 kDa to label the neuronal structures. Biopsies from ascending, descending colon and rectum were morphologically comparable. LN were detected in the biopsies of ascending colon in 17 PD patients (65%), of descending colon in 11 patients (42%) and of rectum in only 6 patients (23%). No LN were seen in control biopsies. Our results show that Lewy pathology follows a rostrocaudal distribution in the colon and rectum of PD patients. Therefore, rectal biopsies have substantially lower sensitivity than ascending colon biopsies to detect Lewy pathology in the gut.


Assuntos
Colo/patologia , Corpos de Lewy/patologia , Neurônios/patologia , Doença de Parkinson/patologia , Reto/patologia , Adulto , Idoso , Biópsia , Contagem de Células , Sistema Nervoso Entérico/patologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade
8.
J Neuroinflammation ; 9: 18, 2012 Jan 23.
Artigo em Inglês | MEDLINE | ID: mdl-22269426

RESUMO

BACKGROUND: Granulocytes generally exert protective roles in the central nervous system (CNS), but recent studies suggest that they can be detrimental in experimental autoimmune encephalomyelitis (EAE), the most common model of multiple sclerosis. While the cytokines and adhesion molecules involved in granulocyte adhesion to the brain vasculature have started to be elucidated, the required chemokines remain undetermined. METHODS: CXCR2 ligand expression was examined in the CNS of mice suffering from EAE or exposed to bacterial toxins by quantitative RT-PCR and in situ hybridization. CXCL1 expression was analyzed in IL-6-treated endothelial cell cultures by quantitative RT-PCR and ELISA. Granulocytes were counted in the brain vasculature after treatment with a neutralizing anti-CXCL1 antibody using stereological techniques. RESULTS: CXCL1 was the most highly expressed ligand of the granulocyte receptor CXCR2 in the CNS of mice subjected to EAE or infused with lipopolysaccharide (LPS) or pertussis toxin (PTX), the latter being commonly used to induce EAE. IL-6 upregulated CXCL1 expression in brain endothelial cells by acting transcriptionally and mediated the stimulatory effect of PTX on CXCL1 expression. The anti-CXCL1 antibody reduced granulocyte adhesion to brain capillaries in the three conditions under study. Importantly, it attenuated EAE severity when given daily for a week during the effector phase of the disease. CONCLUSIONS: This study identifies CXCL1 not only as a key regulator of granulocyte recruitment into the CNS, but also as a new potential target for the treatment of neuroinflammatory diseases such as multiple sclerosis.


Assuntos
Encéfalo/patologia , Adesão Celular/efeitos dos fármacos , Quimiocina CXCL1/metabolismo , Encefalomielite Autoimune Experimental/patologia , Células Endoteliais/efeitos dos fármacos , Regulação da Expressão Gênica/efeitos dos fármacos , Granulócitos/fisiologia , Interleucina-6/farmacologia , Toxina Pertussis/farmacologia , Animais , Anticorpos , Anticorpos Neutralizantes/uso terapêutico , Antígenos CD/metabolismo , Encéfalo/citologia , Encéfalo/efeitos dos fármacos , Proteínas de Ligação ao Cálcio/metabolismo , Adesão Celular/fisiologia , Células Cultivadas , Quimiocina CXCL1/genética , Quimiocina CXCL1/imunologia , Quimiocina CXCL2/imunologia , Modelos Animais de Doenças , Encefalomielite Autoimune Experimental/etiologia , Células Endoteliais/fisiologia , Citometria de Fluxo , Proteína Glial Fibrilar Ácida/metabolismo , Granulócitos/efeitos dos fármacos , Molécula 1 de Adesão Intercelular/genética , Molécula 1 de Adesão Intercelular/metabolismo , Interleucina-6/deficiência , Masculino , Camundongos , Camundongos Endogâmicos C57BL , Camundongos Knockout , Proteínas dos Microfilamentos/metabolismo , Receptores de Interleucina-8B/imunologia
9.
J Behav Addict ; 11(3): 766-777, 2022 Sep 26.
Artigo em Inglês | MEDLINE | ID: mdl-35960604

RESUMO

Background and aims: Parkinson's disease (PD) is one of the most prevalent neurodegenerative diseases. First-line medications consist of drugs that act by counteracting dopamine deficiency in the basal ganglia. Unfortunately, iatrogenic impulsive-compulsive behaviors (ICBs) can occur in up to 20% of PD patients over the course of their illness. ICBs must be considered multifactorial disorders that reflect the interactions of the medication with an individual's vulnerability and the underlying neurobiology of PD. We aimed to explore the predictive genetic, psychopathological and neurological factors involved in the development of ICBs in PD patients by building a complete model of individual vulnerability. Methods: The PARKADD study was a case/non-case study. A total of 225 patients were enrolled ("ICB" group, N = 75; "no ICB" group, N = 150), and 163 agreed to provide saliva samples for genetic analysis. Sociodemographic, neurological and psychiatric characteristics were assessed, and genotyping for the characterization of polymorphisms related to dopaminergic and opioid systems was performed. Results: Factors associated with "ICBs" were younger age of PD onset, personal history of ICB prior to PD onset and higher scores on the urgency and sensation seeking facets of impulsivity. No gene variant was significantly associated, but the association with the opioid receptor mu 1 (OPRM1) rs1799971 polymorphism was close to significance. Discussion and conclusions: The influence of gene-environment interactions probably exists, and additional studies are needed to decipher the possible role of the opioid system in the development of ICBs in PD patients.


Assuntos
Transtornos Disruptivos, de Controle do Impulso e da Conduta , Doença de Parkinson , Humanos , Doença de Parkinson/genética , Doença de Parkinson/tratamento farmacológico , Transtornos Disruptivos, de Controle do Impulso e da Conduta/complicações , Analgésicos Opioides/uso terapêutico , Comportamento Compulsivo/psicologia , Comportamento Impulsivo , Doença Iatrogênica
10.
Soc Work Health Care ; 50(1): 85-107, 2011.
Artigo em Inglês | MEDLINE | ID: mdl-21240773

RESUMO

Support and treatment for military veterans and active duty service members is a national priority. Furthermore, there is increased need for professionals with experience and interest in working with these brave individuals. Veterans and service members face significant challenges both during their service and after transitioning back to civilian settings. One such challenge for some veterans is substance use and its multidimensional effects on mental and physical health. The current article presents a brief but comprehensive overview of the prevalence and comorbidity of substance use disorders in veterans and service members. It also reviews practical information about assessment, treatment, and general clinical issues from the authors' clinical experience that is relevant to providers working with veterans and service members with substance use disorders. This information may be of particular interest to professionals with an interest in helping veterans, those who have limited experience working with veterans, or those who may work outside of standard military or Department of Veterans Affairs settings. Finally, future directions in this important area are discussed.


Assuntos
Militares/psicologia , Psicoterapia/métodos , Transtornos Relacionados ao Uso de Substâncias/terapia , Veteranos/psicologia , Alcoolismo/epidemiologia , Alcoolismo/psicologia , Alcoolismo/terapia , Administração de Caso , Terapia Cognitivo-Comportamental , Comorbidade , Tratamento Farmacológico , Terapia Familiar , Feminino , Humanos , Masculino , Terapia Conjugal , Transtornos Mentais/epidemiologia , Transtornos Mentais/psicologia , Transtornos Mentais/terapia , Aceitação pelo Paciente de Cuidados de Saúde/psicologia , Prevalência , Estigma Social , Transtornos Relacionados ao Uso de Substâncias/epidemiologia , Transtornos Relacionados ao Uso de Substâncias/psicologia , Estados Unidos/epidemiologia
11.
Brain Sci ; 11(7)2021 Jul 14.
Artigo em Inglês | MEDLINE | ID: mdl-34356162

RESUMO

To better understand Shift Work Disorder (SWD), this study investigates insomnia, sleepiness, and psychosocial features of night workers. The study compares night workers with or without SWD to day workers with or without insomnia. Seventy-nine night workers and 40 day workers underwent diagnostic interviews for sleep disorders and for psychopathologies. They completed questionnaires and a sleep diary for 14 days. The design was observatory upon two factors: Work schedule (night, day work) and sleep (good sleep, SWD/insomnia). Two-way ANCOVAs were conducted on psychosocial variables, and effect size were calculated. The clinical approach chosen led to distinct groups of workers. Night workers slept several periods (main sleep period after work, naps, nights on days off). High total wake time and low total sleep time characterized sleep in SWD. Most night workers with SWD still complained of sleepiness after main sleep. Cognitive activation distinguished groups of night workers. All other differences in psychosocial variables between night workers groups were similar to, but smaller than, the ones between day workers. The evaluation of SWD should consider all sleep periods of night workers with particular attention to self-reported total wake time, state sleepiness, and level of cognitive activation.

12.
J Subst Abuse Treat ; 122: 108242, 2021 03.
Artigo em Inglês | MEDLINE | ID: mdl-33509419

RESUMO

BACKGROUND: Evidence-based web and mobile interventions are available for a range of mental health concerns. Little is known about how self-administered web interventions are used outside of controlled research trials, and there is a critical need to empirically examine real-world public implementation of such programs. To this end, the aim of the current study was to evaluate and describe outcomes of a nationwide public implementation of VetChange, a self-administered web intervention for veterans with problematic alcohol use and symptoms of PTSD. METHOD: The study used the RE-AIM framework to organize outcomes along five key dimensions: reach, effectiveness, adoption, implementation, and maintenance. This naturalistic observation study included program use information for all who registered an account with VetChange during the 2-year study period and who self-identified as a returning veteran. We collected program use data automatically via normal website operation; a subset of program users provided additional self-report outcome data. The study used linear multilevel mixed modeling to evaluate changes in alcohol use and PTSD symptoms over a six-month postregistration period. RESULTS: VetChange successfully reached a large, geographically diverse sample of returning veterans with risky drinking and PTSD symptoms. Despite variable, overall modest, rates of intervention use over time, registered users demonstrated significant improvements in drinking, PTSD, and quality of life, and participants maintained these outcomes at a six-month follow-up. CONCLUSIONS: Given the observed low cost per acquisition, positive clinical outcomes, and the potential to produce long-term cost savings through reduced health care burden associated with chronic alcohol use disorder and PTSD, this study demonstrates how web-based interventions can provide public health benefits and reduce long-term health care costs.


Assuntos
Transtornos de Estresse Pós-Traumáticos , Veteranos , Consumo de Bebidas Alcoólicas , Humanos , Internet , Qualidade de Vida
13.
Psychol Serv ; 18(4): 523-532, 2021 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-32378932

RESUMO

The prevalence of hazardous drinking is elevated among returning veterans of Iraq and Afghanistan wars, particularly among returning veterans and those with co-occurring posttraumatic stress disorder (PTSD) symptoms. Understanding the reasons for drinking as well as motivations for change can tremendously improve intervention efforts. Unfortunately, little is currently known regarding the motivations that might facilitate or hinder change among returning veterans. In the current study, we examined returning veterans' reasons to change or not change drinking through analysis of responses to an open-ended decisional balance exercise. We included 366 returning veterans selected from a larger sample of returning veterans enrolled in a web-based randomized-controlled trial of an online intervention for alcohol use and PTSD. We used qualitative content analysis to systematically classify responses into categories through identification of common themes. Top reasons to change/reduce drinking included reducing negative physical effects, improve finances, and expected social/interpersonal benefits of reduction or abstaining. Top reasons to continue drinking/not change included facilitation of social interaction, promote sleep, and reduce tension. The current study adds to our phenomenological understanding of motivations for and against changing drinking among returning veterans. Whereas many motives were consistent with those of nonveteran samples, others appear to distinguish, and are uniquely salient among, returning veterans (e.g., to manage sleep and PTSD symptoms). These results provide insight into key assessment and intervention points regarding hazardous drinking among returning veterans. (PsycInfo Database Record (c) 2021 APA, all rights reserved).


Assuntos
Transtornos de Estresse Pós-Traumáticos , Veteranos , Campanha Afegã de 2001- , Humanos , Guerra do Iraque 2003-2011 , Motivação , Transtornos de Estresse Pós-Traumáticos/epidemiologia
14.
Drug Alcohol Depend ; 221: 108552, 2021 04 01.
Artigo em Inglês | MEDLINE | ID: mdl-33556659

RESUMO

OBJECTIVE: Proportionally more women use online alcohol interventions but also report less robust treatment outcomes compared to men. Less is known about outcome disparities among veteran women, who are a growing demographic nationally. The current study examined gender differences among returning veteran men and women who used VetChange, a web-based intervention for hazardous drinking and posttraumatic stress symptoms (PTSS). METHOD: Using data from a nationwide implementation study of returning combat veterans (n = 222), we performed hierarchical linear modeling to examine gender differences in alcohol and PTSS outcomes over six months following VetChange registration. Additional analyses examined gender differences in proportional changes in hazardous drinking and at each assessment point. RESULTS: Returning veterans reported significant decreases in alcohol use and PTSS over time, yet men evidenced significantly greater reduction in average weekly drinks and drinks per drinking day compared to women. Follow up analyses indicated that women were significantly less likely than men to achieve low-risk drinking by one month post-registration. Proportional change in alcohol use yielded marginal and non-significant trends that were, nonetheless, consistent with the overall pattern of gender differences. CONCLUSION: These results contribute to emerging literature suggesting that women use online alcohol use interventions at proportionately higher rates than do men, but do not reduce their drinking as much as men. There are a number of potential content changes that could improve outcomes for returning veteran women using online interventions, and data-driven adaptations based on stakeholder input are recommended.


Assuntos
Alcoolismo/terapia , Adulto , Consumo de Bebidas Alcoólicas/terapia , Etanol , Feminino , Humanos , Masculino , Resultado do Tratamento , Veteranos
15.
Neuron ; 51(2): 187-99, 2006 Jul 20.
Artigo em Inglês | MEDLINE | ID: mdl-16846854

RESUMO

Neurons and oligodendrocytes are produced in the adult brain subventricular zone (SVZ) from neural stem cells (B cells), which express GFAP and have morphological properties of astrocytes. We report here on the identification B cells expressing the PDGFRalpha in the adult SVZ. Specifically labeled PDGFRalpha expressing B cells in vivo generate neurons and oligodendrocytes. Conditional ablation of PDGFRalpha in a subpopulation of postnatal stem cells showed that this receptor is required for oligodendrogenesis, but not neurogenesis. Infusion of PDGF alone was sufficient to arrest neuroblast production and induce SVZ B cell proliferation contributing to the generation of large hyperplasias with some features of gliomas. The work demonstrates that PDGFRalpha signaling occurs early in the adult stem cell lineage and may help regulate the balance between oligodendrocyte and neuron production. Excessive PDGF activation in the SVZ in stem cells is sufficient to induce hallmarks associated with early stages of tumor formation.


Assuntos
Proliferação de Células , Glioma/metabolismo , Ventrículos Laterais/metabolismo , Neurônios/metabolismo , Fator de Crescimento Derivado de Plaquetas/fisiologia , Receptor alfa de Fator de Crescimento Derivado de Plaquetas/biossíntese , Transdução de Sinais/fisiologia , Células-Tronco/metabolismo , Adolescente , Idoso de 80 Anos ou mais , Animais , Glioma/patologia , Humanos , Ventrículos Laterais/citologia , Ventrículos Laterais/crescimento & desenvolvimento , Camundongos , Camundongos Transgênicos , Pessoa de Meia-Idade , Neurônios/citologia , Fator de Crescimento Derivado de Plaquetas/metabolismo , Receptor alfa de Fator de Crescimento Derivado de Plaquetas/genética , Células-Tronco/citologia
16.
Sleep Health ; 6(3): 399-406, 2020 06.
Artigo em Inglês | MEDLINE | ID: mdl-32280017

RESUMO

OBJECTIVE: Shift Work Disorder (SWD) is explained mainly by a misalignment between the sleep schedule and the circadian rhythm. However, the possible role of cognitive variables in maintaining SWD remains unknown. Therefore, the objective of this study is to evaluate whether cognitive variables known to maintain insomnia in day workers might also be involved in perpetuating SWD. DESIGN: Cross-sectional. SETTING: Sleep laboratory. PARTICIPANTS: Twenty-five shift workers diagnosed with SWD (84% females; mean age = 35.9) and 22 shift workers who are good sleepers (91% females; mean age = 34.1). MEASUREMENTS: The participants completed a sleep diary for two weeks, answered questionnaires, and underwent the Harvey's semistructured interview and the catastrophizing procedure. Data from the catastrophizing procedure underwent a content analysis. RESULTS: Compared with good sleepers, shift workers with SWD reported experiencing more thoughts that keep them awake, more presleep cognitive arousal, more dysfunctional beliefs related to worries and helplessness, and more selective attention toward worries and noises. However, the two groups did not differ on the tendency to catastrophize about difficulties falling asleep. Furthermore, 12 catastrophizing themes were identified in the entire sample, the most frequently endorsed being "sleepiness and energy" and "performance at work." CONCLUSIONS: The results suggest that cognitive variables may play a role in maintaining SWD. Finally, worries that interfere with sleep in shift workers are related to their work context.


Assuntos
Cognição , Transtornos do Sono do Ritmo Circadiano/psicologia , Distúrbios do Início e da Manutenção do Sono/psicologia , Adulto , Estudos Transversais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Jornada de Trabalho em Turnos , Inquéritos e Questionários
17.
Addict Behav ; 107: 106401, 2020 08.
Artigo em Inglês | MEDLINE | ID: mdl-32272356

RESUMO

OBJECTIVE: Veterans of Iraq and Afghanistan conflicts report high rates of drinking, PTSD, and low rates of treatment engagement. Web interventions may help address unmet treatment need; unfortunately, little is known regarding outcomes or adherence to these interventions. In this study, we examined VetChange treatment outcomes and downstream effects of alcohol reduction on PTSD symptoms and intervention dropout rates over six months. METHOD: Participants included 222 veterans (77.5% men, 78.3% White) between 22 and 57 (mean age = 36.02, SD = 7.19). All VetChange users completed a brief alcohol assessment and received personal feedback, then received full access to intervention content including psychoeducation; motivational and cognitive-behavioral modules for relapse prevention, goal-setting, social support, stress, anger, and sleep management; and mood and drink tracking. Veterans completed self-report measures of alcohol use and PTSD symptoms at baseline, one, three, and six months. RESULTS: Alcohol use dropped by 43% over six months, p < .001, with the largest decrease occurring within the first month. Greater alcohol reduction in the first month predicted higher subsequent PTSD hyperarousal severity. Over half (52.3%) dropped out by month one, followed by 12.2% and 37.6% by months three and six. Hyperarousal symptoms, hypervigilance specifically, but not alcohol use predicted subsequent intervention dropout. CONCLUSION: These results highlight the importance of attending to the association between alcohol use and PTSD symptom change in web-based interventions for veterans. The fact that hyperarousal symptoms were associated with elevated risk for intervention dropout signifies the need for online intervention refinement aimed at tailoring content to time-varying symptom presentations.


Assuntos
Transtornos de Estresse Pós-Traumáticos , Veteranos , Adulto , Campanha Afegã de 2001- , Nível de Alerta , Feminino , Humanos , Guerra do Iraque 2003-2011 , Masculino , Transtornos de Estresse Pós-Traumáticos/epidemiologia
18.
Neurology ; 94(8): e842-e850, 2020 02 25.
Artigo em Inglês | MEDLINE | ID: mdl-31959707

RESUMO

Mechanical thrombectomy (MT) is one of the main treatments for acute ischemic stroke (AIS) in patients on effective anticoagulation. The use of direct oral anticoagulants (DOA) has increased, given their efficacy and safety profile compared to vitamin K antagonists (VKA). We compared procedural and clinical outcomes of MT in patients on DOA and VKA treatment before stroke onset. We analyzed 2 groups from the Endovascular Treatment in Ischemic Stroke prospective registry: patients on DOA and patients on VKA treated by MT without thrombolysis. Generalized linear mixed models including center as random effect were used to compare angiographic (rates of reperfusion at end of procedure, number of passes >2, procedural complications) and clinical (favorable and excellent outcome, 90-day all-cause mortality, and hemorrhagic complications) outcomes according to anticoagulation subgroups. Comparisons were adjusted for prespecified confounders (age, admission NIH Stroke Scale score) as well as for meaningful baseline between-group differences. Among 221 patients included, more DOA-treated patients (n = 115, 52%) achieved successful (modified Thrombolysis in Cerebral Infarction score [mTICI] 2b/3) or near complete (mTICI 2c/3) reperfusion at the procedure end than did VKA-treated patients, with an adjusted odds ratio (OR) for DOA vs VKA of 3.27 (95% confidence interval [CI], 1.40-7.65) and 2.00 (95% CI, 1.08-3.73), respectively. DOA-treated patients had a lower 90-day mortality risk with an adjusted OR of 0.47 (95% CI, 0.24-0.89) and a better excellent outcome OR of 2.40 (1.10-5.27). There was no significant between-group difference in hemorrhagic or procedural complications. The study highlights the benefits of DOA compared to VKA. Regarding mortality, excellent outcomes, and recanalization rate, DOA appears to provide a favorable setting for MT treatment in AIS.


Assuntos
Anticoagulantes/uso terapêutico , Hemorragia/epidemiologia , Acidente Vascular Cerebral/tratamento farmacológico , Trombectomia/estatística & dados numéricos , Vitamina K/antagonistas & inibidores , Idoso , Anticoagulantes/efeitos adversos , Dabigatrana/efeitos adversos , Dabigatrana/uso terapêutico , Feminino , Humanos , Masculino , Pirazóis/efeitos adversos , Pirazóis/uso terapêutico , Piridonas/efeitos adversos , Piridonas/uso terapêutico , Sistema de Registros , Reperfusão/estatística & dados numéricos , Rivaroxabana/efeitos adversos , Rivaroxabana/uso terapêutico , Acidente Vascular Cerebral/mortalidade , Acidente Vascular Cerebral/cirurgia , Resultado do Tratamento
19.
Subst Use Misuse ; 43(14): 2116-23, 2008 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-18825590

RESUMO

OBJECTIVE: A recent study comparing the Quick Drinking Screen (QDS) with the Timeline Followback (TLFB) found that in a nonclinical population of problem drinkers both measures produced reliable summary measures of drinking. The current study was designed to replicate these findings with a clinical population of alcohol abusers. The data were collected over three years (2004-2006). METHOD: Participants were 124 alcohol abusers who voluntarily enrolled for outpatient treatment. Over half (52.4%) were female with an average age of almost 40 years. About a third were married, had completed university, and a quarter were unemployed and nonwhite. Participants reported having a drinking problem for an average of 8.3 years, and reported drinking on about 5 days per week, averaging six drinks per drinking day. On two different occasions, they responded to two different sets of questions about their alcohol use. The instruments were: (a) the Quick Drinking Screen (QDS), a summary drinking measure, administered by telephone prior to the assessment; and (2) the TLFB self-administered by computer at the assessment. RESULTS: As in a previous study, this study found that the QDS and the TLFB, two very different drinking measures, collected similar aggregate drinking data for four drinking variables in a clinical sample of alcohol abusers. CONCLUSIONS: When it is not necessary or not possible to gather detailed drinking data, the QDS produces reliable brief summary measures of drinking for problem drinkers. Generalization to nonclinical samples awaits further research.


Assuntos
Alcoolismo/diagnóstico , Programas de Rastreamento/métodos , Pacientes Ambulatoriais , Adulto , Alcoolismo/epidemiologia , Feminino , Florida/epidemiologia , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos
20.
Psychol Trauma ; 10(2): 154-162, 2018 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-28569525

RESUMO

OBJECTIVE: The purpose of the current study was to evaluate the relationship between baseline levels of posttraumatic stress disorder (PTSD), combat exposure, and alcohol outcomes in a sample of Operation Enduring Freedom (OEF) and Operation Iraqi Freedom (OIF) veterans using a web-based self-management intervention (VetChange) for problem drinking. METHOD: The current study focuses on 523 veterans who participated in a larger randomized clinical trial. Analyses in the current study include (a) multivariable linear regression models to assess the relationship between PTSD, combat exposure, and alcohol variables at baseline, and (b) general linear models accounting for correlated data within subjects to analyze change over time for alcohol outcomes as a function of baseline PTSD symptoms, combat exposure, and covariates. RESULTS: There was a positive association between PTSD symptom severity and alcohol use and alcohol problem severity at baseline. However, participants with higher baseline PTSD symptoms demonstrated a significantly greater reduction in alcohol use during the intervention and a greater reduction in alcohol problems from baseline to 3-month follow-up. Combat exposure severity was positively associated with alcohol problems at baseline. However, veterans with higher exposure demonstrated a greater reduction in average weekly drinking between end of intervention and follow-up, and otherwise showed changes similar to participants with lower exposure. CONCLUSIONS: Higher levels of baseline PTSD symptoms and combat exposure severity did not prevent OEF/OIF veterans from achieving positive alcohol outcomes through participation in a self-management web intervention for problem drinking. (PsycINFO Database Record


Assuntos
Transtornos Relacionados ao Uso de Álcool/complicações , Transtornos Relacionados ao Uso de Álcool/reabilitação , Autogestão , Transtornos de Estresse Pós-Traumáticos/complicações , Terapia Assistida por Computador , Exposição à Guerra , Adulto , Campanha Afegã de 2001- , Consumo de Bebidas Alcoólicas/terapia , Feminino , Humanos , Internet , Guerra do Iraque 2003-2011 , Estudos Longitudinais , Masculino , Comportamento Problema , Transtornos de Estresse Pós-Traumáticos/reabilitação , Telerreabilitação , Resultado do Tratamento , Veteranos
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