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1.
J Trauma Stress ; 2024 Apr 07.
Artigo em Inglês | MEDLINE | ID: mdl-38583141

RESUMO

Written exposure therapy (WET) is a brief, manualized trauma-focused treatment typically delivered in five individual weekly sessions. Given the brevity and effectiveness of WET, researchers have begun to focus on its delivery in a massed format. However, only one case study examining massed delivery has been published to date. As such, the objective of the current study was to examine the acceptability, feasibility, and preliminary effectiveness of massed WET among veterans with a trauma- and stressor-related disorder receiving care on an acute inpatient mental health unit. Veterans (N = 26) were assessed prior to, immediately after, and 1 month following massed WET. Most veterans found massed WET to be useful and acceptable. Recruitment and retention rates suggested that the treatment was feasible. Notably, the results revealed statistically significant reductions in overall posttraumatic stress symptoms, ηp 2 = .81, p < .001; depressive symptoms, ηp 2 = .71, p < .001; and functional impairment, ηp 2 = .42, p = .002. These findings add to a growing body of literature highlighting the preliminary effectiveness of WET across various settings, populations, and delivery formats. Limitations include the small sample size and uncontrolled design.

2.
Pediatr Hematol Oncol ; : 1-11, 2024 Jun 05.
Artigo em Inglês | MEDLINE | ID: mdl-38836515

RESUMO

Sickle cell disease (SCD) is well recognized as a hypercoagulablestate, however, it remains unclear whether a subgroup of children with SCD at higher risk of venous thromboembolic event (VTE) during hospitalization may benefit from thromboprophylaxis. Our objectives were to describe the clinical characteristics, outcomes and recurrence of hospital acquired VTE in patients with SCD younger than 21 years. This was a single center retrospective study. Data regarding demographics, reason for admission, location of VTE, risk factors like central venous catheter (CVC), intensive care unit (ICU) admission among others were extracted from electronic medical records over a 10-year study period (2011-2021). Recurrence of VTE at 1 and 5 years was assessed. Descriptive statistics were used as indicated. We identified a total of 20 VTE events over the 10-year study period. Six of these events occurred in those younger than 12 years of age. Fourteen (70%) VTE events occurred in the HbSS or HbSßThal0 genotypes compared to 6 (30%) in HbSC. Most common VTE was isolated pulmonary embolism (PE) (n = 10, 50%). VTE were most often associated with acute chest syndrome (ACS) (n = 14, 70%), ICU admissions (n = 10, 50%) and CVC (n = 5/9, 55%). One patient died from the VTE event. One patient with additional underlying risk factors had a recurrent VTE at 13 months. Our study suggests that ICU admission, ACS and presence of CVC increases the risk of VTE in children and young adults with SCD, but larger studies are indicated to validate our findings.

3.
Death Stud ; : 1-8, 2024 Jun 24.
Artigo em Inglês | MEDLINE | ID: mdl-38912977

RESUMO

To examine the differences in treatment seeking behaviors, previous suicidal thoughts, previous suicide attempts, and disclosure of suicidal thoughts among female service members (SM)/Veteran suicide decedents who used a firearm and those who used another method. Data was acquired from the National Violent Death Reporting System which is maintained and monitored by the Center for Disease Control and Prevention. Data included in the present study were from suicide deaths that occurred between 2003-2018. Female SM/Veterans who died by firearm suicide had lower proportions of current mental health or substance use treatment, lifetime mental health or substance use treatment, and previous suicide attempts compared to those who used another method. Female SM/Veterans who die by firearm suicide are less likely to encounter mental health services than those who use another method. Conversations on secure firearm storage need to occur outside of the health care setting.

4.
J Pediatr Hematol Oncol ; 45(1): e121-e123, 2023 01 01.
Artigo em Inglês | MEDLINE | ID: mdl-36036518

RESUMO

Sinusoidal obstruction syndrome (SOS) of the liver is a complication of chemotherapy most often encountered with hematopoietic stem cell transplant due to high-dose conditioning regimens, but it can also occur with regimens outside of the transplant setting. Mild-to-moderate SOS is a well-described 6-thioguanine toxicity; however, it has rarely been reported as secondary to 6-mercaptopurine, a related thiopurine. This report details a case of a 10-year-old male with T-cell acute lymphoblastic leukemia who developed severe SOS during maintenance therapy with 6-mercaptopurine, and a review of the related literature.


Assuntos
Hepatopatia Veno-Oclusiva , Leucemia-Linfoma Linfoblástico de Células Precursoras , Leucemia-Linfoma Linfoblástico de Células T Precursoras , Masculino , Criança , Humanos , Mercaptopurina , Hepatopatia Veno-Oclusiva/etiologia , Leucemia-Linfoma Linfoblástico de Células Precursoras/tratamento farmacológico , Leucemia-Linfoma Linfoblástico de Células Precursoras/complicações , Tioguanina/efeitos adversos , Leucemia-Linfoma Linfoblástico de Células T Precursoras/tratamento farmacológico , Leucemia-Linfoma Linfoblástico de Células T Precursoras/complicações , Linfócitos T
5.
Violence Vict ; 38(5): 645-663, 2023 Oct 01.
Artigo em Inglês | MEDLINE | ID: mdl-37385667

RESUMO

Survivors of sexual assault (SA) and intimate partner violence (IPV) report high rates of alcohol misuse and often receive services from community agencies. We conducted a qualitative study to examine barriers and facilitators to treatment for alcohol misuse after experiences of SA/IPV among survivors (N = 13) and victim service professionals (VSPs; N = 22) at community-based agencies using semi-structured interviews and focus groups. Survivors discussed seeking treatment for alcohol misuse when alcohol is being used to cope with SA/IPV-related distress and when alcohol use becomes problematic. Survivors identified that stigma and acknowledgment of alcohol misuse are individual-level barriers and facilitators to treatment. System-level factors were also described including having access to treatment and sensitive providers. VSPs also discussed individual (e.g., stigma) and system (e.g., availability and quality of services) level barriers and facilitators to treatment for alcohol misuse. Results indicated several unique barriers and facilitators to treatment for alcohol misuse following SA/IPV.

6.
Am J Addict ; 31(3): 242-250, 2022 05.
Artigo em Inglês | MEDLINE | ID: mdl-35365953

RESUMO

BACKGROUND AND OBJECTIVES: Anxiety sensitivity, or fear of anxious arousal, may be an important risk factor for problematic cannabis use. Specifically, anxiety sensitivity may motivate cannabis use to cope with distress, particularly among trauma-exposed individuals. The current study tested associations among anxiety sensitivity, its subdomains, and cannabis use motives in a sample of trauma-exposed cannabis users. We hypothesized elevated anxiety sensitivity, particularly cognitive concerns, would be associated with increased maladaptive coping use motives, after covarying for the number of traumas and cannabis use quantity. METHOD: Hypotheses were tested in a cross-sectional study of trauma-exposed young adult cannabis users (N = 56) (Mage = 20.7 years, 59% women, 73% white). Participants completed self-report measures, and a clinical interview assessing cannabis use quantity. RESULTS: Multiple regression analyses indicated that elevated anxiety sensitivity was associated with increased cannabis use coping motives, after covarying for the number of traumas experienced and cannabis use quantity. Specifically, higher levels of anxiety sensitivity cognitive and social concerns were associated with coping motives for cannabis use. DISCUSSION AND CONCLUSIONS: Anxiety sensitivity, particularly concerns about cognitive dyscontrol and negative social evaluations of anxious arousal, may motivate cannabis use to cope with stress among trauma-exposed cannabis users. Future research should include prospective studies with diverse samples to replicate results and determine whether intervening on anxiety sensitivity could reduce maladaptive coping motives for cannabis use. SCIENTIFIC SIGNIFICANCE: The current study replicates prior research indicating anxiety sensitivity, particularly cognitive concerns, is associated with maladaptive cannabis use. Expanding on prior research, findings indicated anxiety sensitivity is associated with coping motives for cannabis use among trauma-exposed cannabis users.


Assuntos
Cannabis , Alucinógenos , Adaptação Psicológica , Adulto , Ansiedade/psicologia , Cannabis/efeitos adversos , Estudos Transversais , Feminino , Humanos , Masculino , Motivação , Estudos Prospectivos , Adulto Jovem
7.
J Clin Psychol ; 76(1): 31-39, 2020 01.
Artigo em Inglês | MEDLINE | ID: mdl-31621905

RESUMO

OBJECTIVE: To date, transdiagnostic treatments have primarily investigated treatment outcomes of general psychiatric symptomatology, rather than the specific transdiagnostic symptoms implicated in their protocols. The present study sought to address this significant gap in the literature by investigating the effect of transdiagnostic behavior therapy (TBT) on transdiagnostic avoidance. METHOD: Forty-four veterans diagnosed with various emotional disorders initiated TBT, and completed diagnostic and self-report measures at pre- and posttreatment. RESULTS: Participants demonstrated reliable treatment improvements in measures of situational, thought, and positive emotional avoidance, with moderate-to-large effect sizes, and in measures of physical/interoceptive avoidance with small-to-medium effect sizes. CONCLUSIONS: The findings support the hypothesized effect of TBT in self-report measures of four types of transdiagnostic avoidance in participants diagnosed with various emotional disorders. These findings contribute to the growing literature on the potential benefits of the transdiagnostic approaches to address symptomatology across diagnoses.


Assuntos
Aprendizagem da Esquiva , Terapia Comportamental , Transtornos do Humor/terapia , Veteranos , Adulto , Terapia Comportamental/métodos , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Resultado do Tratamento
10.
Anxiety Stress Coping ; : 1-11, 2024 Mar 25.
Artigo em Inglês | MEDLINE | ID: mdl-38523456

RESUMO

BACKGROUND AND OBJECTIVES: Suicidal ideation (SI) during the postpartum phase is linked with suicide, a leading cause of death during this period. Antenatal depression and anxiety symptoms have both been linked with increased risk for postpartum SI. However, research aimed at examining the relative contributions of antenatal anxiety and depression symptoms towards postpartum SI remains nascent. In this study, we investigated the relative contribution of antenatal anxiety symptoms, depression symptoms, and SI towards postpartum SI. DESIGN: These data are from a longitudinal study in which American mothers were assessed during pregnancy and again at six- to eight weeks postpartum. METHODS: Data were analyzed using correlations and logistic regression models. RESULTS: Antenatal anxiety symptoms and antenatal depression symptoms were significantly correlated with postpartum SI. Results from a logistic regression model indicated that antenatal anxiety symptoms (T1; OR = 1.185 [1.125, 1.245], p = .004), but not antenatal depression symptoms (T1; OR = 1.018 [0.943, 1.093], p = .812) or antenatal SI (T1; OR = 1.58 [0.11, 22.29], p = 0.73), were significantly associated with postpartum SI. CONCLUSIONS: Antenatal anxiety symptoms, depression symptoms, and SI were positively associated with postpartum SI. When examined simultaneously, anxiety symptoms during the antenatal phase (but not depression symptoms or SI) predicted SI in the postpartum phase.

11.
Womens Health Issues ; 33(4): 422-427, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37100719

RESUMO

BACKGROUND: Pregnancy loss, including miscarriage and stillbirth, is common and associated with an increased risk for prenatal and postnatal depression, as well as posttraumatic stress disorder (PTSD). Racial disparities have been observed in pregnancy loss, with Black women having higher rates of pregnancy loss and postnatal depression. However, no research to date has examined the mental health and demographic correlates of pregnancy loss within a veteran population. METHOD: The current study examined associations between pregnancy loss and mental health and demographic correlates among 1,324 pregnant veterans, of which 368 had a history of at least one stillbirth and/or miscarriage. RESULTS: Veterans with a history of pregnancy loss, compared with those without, were more likely to have a diagnosis of anxiety (52.7% vs. 46.4%, p = .04), depression (62.5% vs. 50.8%, p = .0001), or PTSD (46.5% vs. 37.6%, p = .003); were more likely to report receiving mental health care during pregnancy (23.1% vs. 16.8%, p = .01); and were more likely to have experienced military sexual trauma (harassment: 56.5% vs. 49.9%, p = .04; rape: 38.9% vs. 29.3%, p = .0004). Results also indicated that Black veterans were more likely to report a history of pregnancy loss (32.1% vs. 25.3%, p = .01). Further, Black veterans were more likely to experience clinically meaningful prenatal depression symptoms (adjusted odds ratio: 1.90; 95% confidence interval: 1.42-2.54) after accounting for past loss and age in logistic regression models. DISCUSSION: Taken together, findings from the present investigation corroborate previous research highlighting the deleterious impact of pregnancy loss and extend prior work by examining these associations among a diverse sample of pregnant veterans.


Assuntos
Aborto Espontâneo , Depressão Pós-Parto , Militares , Transtornos de Estresse Pós-Traumáticos , Veteranos , Gravidez , Feminino , Humanos , Veteranos/psicologia , Saúde Mental , Aborto Espontâneo/epidemiologia , Natimorto , Transtornos de Estresse Pós-Traumáticos/psicologia , Militares/psicologia
12.
Psychol Trauma ; 15(8): 1307-1314, 2023 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-35549383

RESUMO

OBJECTIVE: Chronic pain and posttraumatic stress disorder (PTSD) are two highly prevaxlent and comorbid conditions common within veteran populations. Notably, those with comorbid pain and PTSD tend to have more severe presentations and poorer quality of life than those with either disorder alone. Despite this well-established relationship, limited research has examined the association between pain and PTSD symptom severity among women veterans with a history of military sexual trauma (MST). METHOD: The current study included 107 women veterans presenting for psychological services to an MST specialty clinic at a large southeastern Veterans Affairs (VA) hospital in the United States. RESULTS: Findings indicated a significant relationship between pain and overall PTSD symptom severity, as well as the intrusions and arousal and reactivity symptom clusters. Contrary to prediction, there was not a significant relationship between pain interference and PTSD symptom or cluster severity. CONCLUSION: Results highlight the importance of inquiring about pain when working with women veterans with a history of MST. Future research aimed at disentangling the casual relationship between pain and PTSD symptoms is crucial to enhance our understanding of these constructs. (PsycInfo Database Record (c) 2023 APA, all rights reserved).


Assuntos
Transtornos de Estresse Pós-Traumáticos , Veteranos , Humanos , Feminino , Trauma Sexual Militar , Qualidade de Vida , Transtornos de Estresse Pós-Traumáticos/epidemiologia , Dor/epidemiologia
13.
Psychol Trauma ; 15(8): 1233-1237, 2023 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-35679208

RESUMO

OBJECTIVE: Despite a robust association between military sexual trauma (MST) and posttraumatic stress disorder (PTSD), few studies have examined factors that are associated with increased symptom severity. To this end, the current study was designed to examine the unique and interactive effects of gender and race on PTSD symptoms using a sample of MST survivors. METHOD: The sample included 126 veterans (71% Women, 29% Men; 70% Black/African American and 30% White/Caucasian) presenting for psychological services to a MST specialty clinic at a large Southeastern Veterans Affairs (VA) hospital. As part of their intake evaluation, veterans completed a diagnostic interview and battery of self-report questionnaires. RESULTS: Results revealed a main effect of gender and race such that veteran men and Black/African American veterans were found to have increased PTSD symptom severity. However, there was not a significant gender by race interaction. CONCLUSION: Findings are discussed with regard to previous research and treatment implications. (PsycInfo Database Record (c) 2023 APA, all rights reserved).


Assuntos
Militares , Delitos Sexuais , Transtornos de Estresse Pós-Traumáticos , Veteranos , Masculino , Humanos , Feminino , Transtornos de Estresse Pós-Traumáticos/psicologia , Delitos Sexuais/psicologia , Trauma Sexual Militar , Veteranos/psicologia , Sobreviventes/psicologia , Militares/psicologia
14.
Reprod Sci ; 29(2): 606-613, 2022 02.
Artigo em Inglês | MEDLINE | ID: mdl-34403125

RESUMO

A substantial proportion of pregnant women use prescription opioids. However, the lack of efficacy of chronic prescription opioid use for pain, combined with an increased risk of these medications in general and during pregnancy, suggests that the risks of these medications may outweigh the benefits of continued use. Though research has not evaluated non-pharmacological approaches to treat chronic pain during pregnancy, research conducted with the general population outside of pregnancy suggests that cognitive behavioral therapy (CBT) is an effective, non-pharmacological treatment. Therefore, the purpose of this study was to evaluate the effectiveness of CBT for chronic pain paired with shared decision-making for prescription opioid dose reduction among pregnant women with prescription opioid misuse. The study was an open-label, 8-week clinical trial of CBT for chronic pain and shared decision-making for prescription opioid dose reduction. Participants included a clinical sample of 20 pregnant women between the ages of 18 and 45 years who were misusing opioids but did not meet DSM-IV criteria for an opioid use disorder or other substance use disorder. Compared to baseline, at 8 weeks, participants had significant reductions in average prescription opioid morphine equivalent dose, prescription opioid misuse, worst pain ratings, and pain interference in general activity and at work. They did not report improvement in other pain ratings or areas of functioning. This study provides valuable information regarding the preliminary efficacy of CBT for chronic pain paired with shared decision-making among pregnant women misusing prescription opioids. ClinicalTrials.gov: NCT02804152.


Assuntos
Terapia Cognitivo-Comportamental/métodos , Manejo da Dor/métodos , Dor/complicações , Complicações na Gravidez/terapia , Adulto , Analgésicos Opioides/uso terapêutico , Feminino , Humanos , Dor/tratamento farmacológico , Gravidez
15.
Artigo em Inglês | MEDLINE | ID: mdl-34203753

RESUMO

The extensive body of literature on mentoring has largely ignored the developmental needs of mentors themselves. This conceptual and practice-oriented paper asks mentors and others to consider the needs of mentors who may or may not arrive ready to deal with the challenges of being effective mentors. The authors ask: how should mentors think about their own growth and development? Drawing on a broad spectrum of academic literatures, three frames are proposed for guiding mentors' thinking about themselves and four practices to spur their continuous improvement. The three frames are a simultaneous dual focus on people and tasks as mentors exercise leadership; an inclusive mind-set that works across the multidimensionality of identities in others and themselves; and a keen sense of the threats and rewards of managing the perceptions of others. We recommend the use of four practices for self-examination: engage in structured self-reflection; participate in standardized assessments to see others and one's self differently; build peer support among colleagues; and ask for feedback in concrete terms. We conclude by offering the benefits and challenges as mentors engage in the difficult work of acquiring in-depth self-awareness.


Assuntos
Tutoria , Mentores , Retroalimentação , Humanos , Liderança , Percepção
16.
Psychol Serv ; 18(4): 643-650, 2021 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-32673037

RESUMO

Transdiagnostic behavior therapy (TBT) has been found to lead to significant reductions in affective disorder symptoms. However, patient satisfaction and treatment fit for TBT have not been examined. Within a sample of veterans, the current study examined the acceptability of TBT in comparison to brief behavioral activation (BA) for depression. Results found individuals in the TBT condition (compared to BA) were more satisfied with therapy, F(1, 48) = 6.68, p = .013. In addition, they were more likely to say that they would recommend this treatment to a friend, F(1, 48) = 3.76, p = .058, and that the TBT treatment helped them more effectively deal with problems, F(1, 48) = 3.29, p = .076, although these effects were significant at trend level. Individuals in the TBT condition (compared to BA) completed significantly more homework, F(1, 65) = 4.95, p = .030, and were more engaged in their homework, F(1, 65) = 3.98, p = .050. These findings are the first of their kind and suggest high patient satisfaction and homework completion/participation in participants completing TBT. These results are promising and suggest the continued dissemination and implementation of transdiagnostic treatments. (PsycInfo Database Record (c) 2021 APA, all rights reserved).


Assuntos
Veteranos , Terapia Comportamental , Humanos , Transtornos do Humor , Satisfação do Paciente
17.
J Affect Disord ; 294: 505-512, 2021 11 01.
Artigo em Inglês | MEDLINE | ID: mdl-34330046

RESUMO

BACKGROUND: Intolerance of uncertainty (IU) is a transdiagnostic risk factor for emotional disorders. Exploring the nature of IU might allow us to understand better a difference between pathological and normal worry processes. For that purpose, factor mixture modeling (FMM) can be used to test the latent structure of IU across a categorical-dimensional spectrum. METHOD: In the current study, FMM was used to examine the structure of IU in a sample of 1440 (Mage = 19.71, SD = 1.14) university students in Serbia. A Serbian Intolerance of Uncertainty Scale-11 was used. RESULTS: Results suggest that IU has four latent classes, named as Low IU, Moderate-Low IU, Moderate-High IU and High IU. The Low IU and High IU classes significantly differed in levels of positive and negative affect (NA), symptoms of depression (D), anxiety (A), stress (A), depressive cognitive bias and anxiety sensitivity (AS). Moderate-Low IU and Moderate-High classes had higher symptoms than Low IU class, but lower than High IU class. The Moderate-Low IU and Moderate-High IU classes differed in symptoms of D, A, S, and in levels of AS and NA. LIMITATIONS: This study was cross-sectional and included only non-clinical sample. CONCLUSION: The latent structure of IU tested on a Serbian sample can be described in terms of hybrid latent structure The cut-off scores of ≤ 19 and ≥ 26 can be used to detect those who are non-vulnerable or at risk for IU-related psychopathology.


Assuntos
Transtornos de Ansiedade , Ansiedade , Adulto , Ansiedade/epidemiologia , Transtornos de Ansiedade/epidemiologia , Estudos Transversais , Humanos , Psicopatologia , Incerteza , Adulto Jovem
18.
Ann N Y Acad Sci ; 1136: 137-48, 2008.
Artigo em Inglês | MEDLINE | ID: mdl-18579880

RESUMO

This chapter examines trends in private and public health coverage, as well as implications for vulnerable populations and health disparities. We find that there has been erosion in employment-based health benefits. Both the percentage of employers offering coverage and the percentage of workers with coverage declined in recent years. Those with coverage face eroding benefits and increased cost sharing. Within the public sector, Medicaid enrollment has decreased, with benefits increasingly restricted. Although State Children's Health Insurance Program (SCHIP) enrollment has increased among low-income children, the future of SCHIP remains uncertain. Meeting the healthcare needs of Americans and reducing health disparities requires both the provision of health coverage to all and sufficient comprehensiveness of benefits within private and public programs to meet enrollees' healthcare needs. Our findings suggest that we have a long way to go in reaching these goals.


Assuntos
Serviços de Saúde da Criança , Acessibilidade aos Serviços de Saúde , Disparidades nos Níveis de Saúde , Seguro Saúde/tendências , Medicaid , Setor Privado , Criança , Pré-Escolar , Política de Saúde , Humanos , Medicaid/organização & administração , Pessoas sem Cobertura de Seguro de Saúde , Cuidados de Saúde não Remunerados/economia , Cuidados de Saúde não Remunerados/tendências , Estados Unidos , Populações Vulneráveis
19.
Int J Radiat Oncol Biol Phys ; 101(1): 118-127, 2018 05 01.
Artigo em Inglês | MEDLINE | ID: mdl-29534895

RESUMO

PURPOSE: Radiation therapy (RT) is a viable therapeutic option for Ewing sarcoma (ES) patients. However, little progress has been made to elucidate the mechanisms of radioresistance. This study establishes a novel ES irradiation-adapted model designed to assess molecular and 18F fluorodeoxyglucose (FDG) positron emission tomography (PET) alterations secondary to RT. METHODS AND MATERIALS: Radiation-adapted cell lines (RACLs) were created in vitro by exposing ES human cell lines to fractionated doses of radiation. Assays to assess migration or invasion potential and RNA expression were performed on the RACLs. Orthotopic intratibial in vivo investigations were performed with irradiation-sensitive and irradiation-adapted ES cells to generate tumors. Transplanted mice were imaged using 18F-FDG PET followed by fractionated RT directed at the primary tumor. Mice were monitored for tumor regression and change in metabolic activity using 18F-FDG PET imaging. Protein expression analyses were performed on the RACLs and orthotopic tumors. RESULTS: Exposure to fractionated doses of radiation caused a significant increase in migratory and invasive properties in the RACLs when compared with nonirradiated wild-type ES cells. RACL transcriptomic and proteomic analysis suggests enhanced activation of the mammalian target of rapamycin-AKT pathway when compared with wild-type ES cells. Irradiation-adapted tumors demonstrated significantly less tumor regression (P = .03) than wild-type tumors. Wild-type tumors also had decreased expression of lactate dehydrogenase A protein and significantly lower metabolic activity after RT compared with irradiation-adapted tumors (P = .03). CONCLUSIONS: We developed novel in vitro and in vivo irradiation-adapted ES models. In vitro investigations revealed increased migratory and invasive phenotypes in the RACLs. In vivo investigations demonstrated increased metabolic activity and significantly decreased sensitivity to RT in the irradiation-adapted tumors as demonstrated by growth response curves and 18F-FDG PET activity. Investigations of the RACLs identified possible radiosensitizing-dependent targets in lactate dehydrogenase A and the mammalian target of rapamycin-AKT pathway.


Assuntos
Neoplasias Ósseas/radioterapia , Tolerância a Radiação , Sarcoma de Ewing/radioterapia , Adaptação Fisiológica , Animais , Neoplasias Ósseas/diagnóstico por imagem , Neoplasias Ósseas/metabolismo , Neoplasias Ósseas/patologia , Linhagem Celular Tumoral , Movimento Celular/efeitos da radiação , Fluordesoxiglucose F18 , Humanos , L-Lactato Desidrogenase/metabolismo , Camundongos , Invasividade Neoplásica , Tomografia por Emissão de Pósitrons , Proteínas Proto-Oncogênicas c-akt/metabolismo , Hipofracionamento da Dose de Radiação , Compostos Radiofarmacêuticos , Sarcoma de Ewing/diagnóstico por imagem , Sarcoma de Ewing/metabolismo , Sarcoma de Ewing/patologia , Serina-Treonina Quinases TOR/metabolismo
20.
Nicotine Tob Res ; 10(6): 1037-45, 2008 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-18584467

RESUMO

Emerging pharmacogenetics research may improve clinical outcomes for common complex conditions typically treated in primary care settings. Physicians' willingness to offer genetically-tailored treatments to their patients will be critical to realizing this potential. According to recent research, it is likely that genotypes used to tailor smoking will have pleiotropic associations with other addictions and diseases, and may have different frequencies across populations. These additional features may pose an additional barrier to adoption. To assess physicians' willingness to offer a new test to individually tailor smoking treatment according to specific test characteristics, we conducted a national mailed survey of 2,000 U.S. primary care physicians (response rate: 62.3%). Physicians responded to a baseline scenario describing a new test to tailor smoking treatment, and three additional scenarios describing specific test characteristics based on published research; there was random assignment to one of two survey conditions in which the test was described as a genetic or non-genetic test. Our findings indicate physicians' self-reported likelihood (0-100 scale) that they would offer a new test to tailor smoking cessation treatment ranged from 69%-78% across all scenarios. Relative to baseline scenario responses, physicians were significantly less likely to offer the test when informed that the same genotypes assessed for treatment tailoring: (1) may also identify individuals predisposed to become addicted to nicotine (p<.001), (2) differ in frequency by race (p<.004), and (3) may have associations with other conditions (e.g., alcohol and cocaine addiction, attention deficit hyperactivity disorder ADHD and Tourette Syndrome) (p<.01). Describing a new test to individually tailor smoking treatment as a "genetic" versus non-genetic test significantly reduced physicians' likelihood of offering the test across all scenarios, regardless of specific test characteristics (p<.0007). Effective education of primary care physicians will be critical to successful integration of promising new pharmacogenetic treatment strategies for smoking.


Assuntos
Aconselhamento Genético/métodos , Médicos de Família/estatística & dados numéricos , Atenção Primária à Saúde/estatística & dados numéricos , Abandono do Hábito de Fumar/métodos , Prevenção do Hábito de Fumar , Fumar/genética , Tabagismo/prevenção & controle , Adulto , Atitude do Pessoal de Saúde , Competência Clínica , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Padrões de Prática Médica/estatística & dados numéricos , Inquéritos e Questionários , Tabagismo/genética , Estados Unidos/epidemiologia
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