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1.
Cancer Med ; 12(14): 15482-15491, 2023 07.
Artigo em Inglês | MEDLINE | ID: mdl-37329206

RESUMO

BACKGROUND: This study aimed to identify predictors of nonadherence to breast cancer screening guidelines in an urban screening clinic among high- and average-risk women in the United States. METHODS: We reviewed records of 6090 women who received ≥2 screening mammograms over 2 years at the Karmanos Cancer Institute to examine how breast cancer risk and breast density were associated with guideline-concordant screening. Incongruent screening was defined as receiving supplemental imaging between screening mammograms for average-risk women, and as not receiving recommended supplemental imaging for high-risk women. We used t-tests and chi-square tests to examine bivariate associations with guideline-congruent screening, and probit regression to regress guideline-congruence unto breast cancer risk, breast density, and their interaction, controlling for age and race. RESULTS: Incongruent screening was more likely among high- versus average-risk women (97.7% vs. 0.9%, p < 0.01). Among average-risk women, incongruent screening was more likely among those with dense versus nondense breasts (2.0% vs. 0.1%, p < 0.01). Among high-risk women, incongruent screening was more likely among those with nondense versus dense breasts (99.5% vs. 95.2%, p < 0.01). The significant main effects of density and high-risk on increased incongruent screening were qualified by a density by high-risk interaction, showing a weaker association between risk and incongruent screening among women with dense breasts (simple slope = 3.71, p < 0.01) versus nondense breasts (simple slope = 5.79, p < 0.01). Age and race were not associated with incongruent screening. CONCLUSIONS: Lack of adherence to evidence-based screening guidelines has led to underutilization of supplementary imaging for high-risk women and potential overutilization for women with dense breasts without other risk factors.


Assuntos
Neoplasias da Mama , Feminino , Humanos , Neoplasias da Mama/diagnóstico por imagem , Neoplasias da Mama/epidemiologia , Detecção Precoce de Câncer/métodos , Mamografia/métodos , Programas de Rastreamento/métodos , Fatores de Risco , Estados Unidos/epidemiologia
2.
Cancer Causes Control ; 34(2): 141-149, 2023 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-36370215

RESUMO

PURPOSE: The prevalence of pathogenic variants in BRCA1 and BRCA2 in populations other than Ashkenazi Jewish (AJ) is not well defined. We describe the racial and ethnic-specific prevalence of BRCA1/2 pathogenic variants and variants of uncertain significance (VUS) among individuals referred for genetic testing in a large urban comprehensive cancer center over a 20-year period. METHODS: The population included 3,537 unrelated individuals who underwent genetic testing from January 1999 to October 2019 at the Karmanos Cancer Institute. We estimated the prevalence of pathogenic variants and VUS and evaluated associations with race and ethnicity for African American (AA), Arab, AJ and Hispanic individuals compared to Non-Hispanic Whites (NHW). We used multivariable models to adjust for other predictors of pathogenic variants. We also reported the most common pathogenic variants by racial and ethnic group. RESULTS: The racial and ethnic breakdown of our population was: NHW (68.9%), AA (20.3%), AJ (2.5%), Arab (2.2%), Hispanic (1.0%), Asian Pacific Islander, Native American/Alaskan Native (4.7%), and < 1% unknown. The overall prevalence of pathogenic variants in BRCA1/2 was 8.9% and the prevalence of VUS was 5.6%. Compared to NHW, there were no racial or ethnic differences in the rate of pathogenic variants. However, AA individuals were more likely to have VUS in BRCA1 (adjusted OR 2.43, 95% CI 1.38-4.28) and AJ were more likely to have VUS in BRCA2 (adjusted OR 3.50, 95% CI 1.61-6.58). CONCLUSION: These results suggest the continued need for genetic testing and variant reclassification for individuals of all racial and ethnic groups.


Assuntos
Proteína BRCA2 , Neoplasias da Mama , Aconselhamento Genético , Predisposição Genética para Doença , Feminino , Humanos , Proteína BRCA1/genética , Proteína BRCA2/genética , Neoplasias da Mama/diagnóstico , Neoplasias da Mama/epidemiologia , Neoplasias da Mama/genética , Etnicidade/genética , Testes Genéticos , Variação Genética , Hispânico ou Latino/genética
3.
BMC Health Serv Res ; 22(1): 1067, 2022 Aug 20.
Artigo em Inglês | MEDLINE | ID: mdl-35987671

RESUMO

BACKGROUND: While effectiveness outcomes of eHealth-facilitated integrated care models (eICMs) in transplant and oncological populations are promising, implementing and sustaining them in real-world settings remain challenging. Allogeneic stem cell transplant (alloSCT) patients could benefit from an eICM to enhance health outcomes. To combat health deterioration, integrating chronic illness management, including continuous symptom and health behaviour monitoring, can shorten reaction times. We will test the 1st-year post-alloSCT effectiveness and evaluate bundled implementation strategies to support the implementation of a newly developed and adapted eICM in allogeneic stem cell transplantation facilitated by eHealth (SMILe-ICM). SMILe-ICM has been designed by combining implementation, behavioural, and computer science methods. Adaptions were guided by FRAME and FRAME-IS. It consists of four modules: 1) monitoring & follow-up; 2) infection prevention; 3) physical activity; and 4) medication adherence, delivered via eHealth and a care coordinator (an Advanced Practice Nurse). The implementation was supported by contextually adapted implementation strategies (e.g., creating new clinical teams, informing local opinion leaders). METHODS: Using a hybrid effectiveness-implementation randomised controlled trial, we will include a consecutive sample of 80 adult alloSCT patients who were transplanted and followed by University Hospital Basel (Switzerland). Inclusion criteria are basic German proficiency; elementary computer literacy; internet access; and written informed consent. Patients will be excluded if their condition prevents the use of technology, or if they are followed up only at external centres. Patient-level (1:1) stratified randomisation into a usual care group and a SMILe-ICM group will take place 10 days pre-transplantation. To gauge the SMILe-ICM's effectiveness primary outcome (re-hospitalisation rate), secondary outcomes (healthcare utilization costs; length of inpatient re-hospitalizations, medication adherence; treatment and self-management burden; HRQoL; Graft-versus-Host Disease rate; survival; overall survival rate) and implementation outcomes (acceptability, appropriateness, feasibility, fidelity), we will use multi-method, multi-informant assessment (via questionnaires, interviews, electronic health record data, cost capture methods). DISCUSSION: The SMILe-ICM has major innovative potential for reengineering alloSCT follow-up care, particularly regarding short- and medium-term outcomes. Our dual focus on implementation and effectiveness will both inform optimization of the SMILe-ICM and provide insights regarding implementation strategies and pathway, understudied in eHealth-facilitated ICMs in chronically ill populations. TRIAL REGISTRATION: ClinicalTrials.gov. Identifier: NCT04789863 . Registered April 01, 2021.


Assuntos
Prestação Integrada de Cuidados de Saúde , Transplante de Células-Tronco Hematopoéticas , Autogestão , Telemedicina , Adulto , Doença Crônica , Comportamentos Relacionados com a Saúde , Humanos , Ensaios Clínicos Controlados Aleatórios como Assunto
4.
Cancer Med ; 11(17): 3304-3311, 2022 09.
Artigo em Inglês | MEDLINE | ID: mdl-35322585

RESUMO

BACKGROUND: The study was conducted to evaluate racial differences in referral and uptake of genetic counseling (GC) in a clinic-based population of women with breast cancer. METHODS: Medical records of 150 breast cancer patients at the Karmanos Cancer Institute were reviewed to determine eligibility for GC according to National Comprehensive Cancer Network guidelines, GC referral rates, and appointment completion rates. Logistic regression was used to assess the relationship between demographic and clinical factors and GC eligibility and referral. RESULTS: The mean age at diagnosis was 57.1 (SD 12.6) and 66% of the women were Black. There were 91 women (60.7%) eligible for GC and of those, 54 (61.4%) were referred. After multivariable analyses, factors associated with reduced eligibility were older age at diagnosis (OR = 0.91, 95% CI [0.87,0.95]) and Black race (OR = 0.37, 95% CI [0.15, 0.96]). After additional multivariable analysis, eligibility was associated with an increased likelihood of referral (OR = 5.97, 95% CI [2.29, 15.56]), however, Medicare versus private insurance was associated with a lower likelihood for referral (OR = 0.32, 95% CI [0.12-0.80]. Of those referred, 49 (76.6%) completed an appointment, and 47 had genetic testing. Women with Medicare were also less likely to complete an appointment. Race had no impact on referral or appointment completion. CONCLUSIONS: There were no racial differences in GC referral or appointment completion in a clinic-based sample of women with breast cancer. Further interventions are needed to promote increased referral and appointment completion for women with breast cancer who are eligible for GC.


Assuntos
Neoplasias da Mama , Aconselhamento Genético , Idoso , Neoplasias da Mama/diagnóstico , Neoplasias da Mama/genética , Neoplasias da Mama/terapia , Feminino , Testes Genéticos , Humanos , Medicare , Encaminhamento e Consulta , Estados Unidos
5.
Cancer Med ; 11(6): 1465-1473, 2022 03.
Artigo em Inglês | MEDLINE | ID: mdl-35040284

RESUMO

BACKGROUND: There is sparse clinical information on the racial and ethnic distribution of results of multigene panel testing among individuals at high risk for hereditary cancer. METHODS: We evaluated the results of multigene panel testing across eight clinical sites across the state of Michigan for individuals seen for genetic counseling from May 13, 2013 to October 31, 2019 at the Karmanos Cancer Institute's cancer genetics clinic. We estimated the prevalence of pathogenic variants and variants of uncertain significance (VUS) from genes other than BRCA1/2 among individuals of non-Hispanic White (NHW), Black or African American (AA), Ashkenazi Jewish (AJ), Arab, Hispanic, and other ancestry. RESULTS: The racial and ethnic distribution of 2419 individuals who had panel testing included 68.8% NHW, 22.1% AA, 2.3% Arab, 2.2% AJ, 1.0% Hispanic, and 3.6% other. Of these, 11.2% had pathogenic variants and 17.5% had VUS. After multivariable analyses, compared to NHW, AA were less likely to have pathogenic variants (OR 95% CI, 0.38, 0.24-0.59, p < 0.001). Both AA and Arabs were more likely to have VUS (OR 95% CI, 1.53, 1.18-1.98, p = 0.001 and OR 95% CI, 2.28, 1.17-4.43, p = 0.015, respectively). There were no significant differences for other groups. The most common pathogenic variants were CHEK2 (n = 65), MUTYH (n = 45), ATM (n = 28), and MSH2 (n = 22); the most common pathogenic variants by race and ethnicity were CHEK2 (NHW), MSH2 and MUTYH (AA), MSH2 (Arab), MSH6 and CHEK2 (AJ), and MLH1 (Hispanic); the most common pathogenic variants by primary cancer site were CHEK2 (breast), MSH2 (colon), BRIP1 and MUTYH (ovarian), and MSH2 and MSH6 (endometrial). CONCLUSIONS: Understanding the racial and ethnic distribution of pathogenic variants in multi-gene panels has the potential to lead to better identification of individuals at risk for hereditary cancer.


Assuntos
Neoplasias da Mama , Etnicidade , Proteína BRCA1/genética , Neoplasias da Mama/genética , Etnicidade/genética , Feminino , Predisposição Genética para Doença , Testes Genéticos/métodos , Hispânico ou Latino , Humanos , Proteína 2 Homóloga a MutS/genética
6.
J Eval Clin Pract ; 24(5): 1114-1119, 2018 10.
Artigo em Inglês | MEDLINE | ID: mdl-30047215

RESUMO

There is controversy concerning the relationship between stigma and the conceptualization of mental illness as a biomedical disease. Proponents of the biomedical model argue that conceptualizing mental illness as a biochemical disease benefits patients, because it not only enables them to receive medical treatments but also helps them avoid the stigmas associated with mental illness. Opposing this position, others suggest that biomedical causal trajectory further contributes to stigma. When considering individuals' sense of well-being while living with a mental illness, we believe that this debate detracts us from the most important aspects of removing stigma and enabling patients to develop fulfilling lives. Thus, using patient memoirs, we refocus attention on the patient experience itself, searching for how patients' memoirs can illustrate roads to recovery, resilience, and coping. We examine first what facilitates patients to live a fulfilling life and next, what obstacles they identify to a fulfilling life in the face of their encounter with mental illness.


Assuntos
Transtornos Mentais/psicologia , Estigma Social , Relações Familiares , Humanos , Medicina Tradicional
7.
Curr Opin Rheumatol ; 29(4): 378-388, 2017 07.
Artigo em Inglês | MEDLINE | ID: mdl-28463872

RESUMO

PURPOSE OF REVIEW: In recent years, there has been a growing interest in the value of vitamin D and its effects on autoimmunity. The aim of this review is to summarize the current knowledge on the association between vitamin D and rheumatoid arthritis (RA) in terms of prevalence, disease activity, clinical expression, serology and gene polymorphisms of vitamin D receptors. RECENT FINDINGS: Studies have shown contrasting findings concerning the association between vitamin D levels and RA. Vitamin D seems to have immunomodulatory properties. Therefore, low vitamin D levels could contribute to increased immune activation. However, the potential role of vitamin D supplementation in preventing RA manifestation and its beneficial role as a component of RA treatment remain controversial. The relationship between RA susceptibility and vitamin D polymorphisms is also unclear. SUMMARY: Despite advancements synthesized by some recent meta-analyses, the relationship between vitamin D and RA requires further evaluation. Further research is needed to confirm the relationship between RA susceptibility and vitamin D polymorphisms and to determine whether vitamin D plays a role in preventing the manifestation of RA. Finally, additional studies are required to determine the impact and optimal amount of vitamin D supplementation in the treatment of RA patients.


Assuntos
Artrite Reumatoide/epidemiologia , Deficiência de Vitamina D/epidemiologia , Artrite Reumatoide/tratamento farmacológico , Artrite Reumatoide/genética , Artrite Reumatoide/metabolismo , Progressão da Doença , Predisposição Genética para Doença , Humanos , Polimorfismo Genético , Prevalência , Receptores de Calcitriol/genética , Fatores de Risco , Vitamina D/metabolismo , Vitamina D/uso terapêutico
8.
J Oncol Pract ; 13(3): e249-e258, 2017 03.
Artigo em Inglês | MEDLINE | ID: mdl-27960067

RESUMO

PURPOSE: Financial toxicity negatively affects patients with cancer, especially racial/ethnic minorities. Patient-oncologist discussions about treatment-related costs may reduce financial toxicity by factoring costs into treatment decisions. This study investigated the frequency and nature of cost discussions during clinical interactions between African American patients and oncologists and examined whether cost discussions were affected by patient sociodemographic characteristics and social support, a known buffer to perceived financial stress. Methods Video recorded patient-oncologist clinical interactions (n = 103) from outpatient clinics of two urban cancer hospitals (including a National Cancer Institute-designated comprehensive cancer center) were analyzed. Coders studied the videos for the presence and duration of cost discussions and then determined the initiator, topic, oncologist response to the patient's concerns, and the patient's reaction to the oncologist's response. RESULTS: Cost discussions occurred in 45% of clinical interactions. Patients initiated 63% of discussions; oncologists initiated 36%. The most frequent topics were concern about time off from work for treatment (initiated by patients) and insurance (initiated by oncologists). Younger patients and patients with more perceived social support satisfaction were more likely to discuss cost. Patient age interacted with amount of social support to affect frequency of cost discussions within interactions. Younger patients with more social support had more cost discussions; older patients with more social support had fewer cost discussions. CONCLUSION: Cost discussions occurred in fewer than one half of the interactions and most commonly focused on the impact of the diagnosis on patients' opportunity costs rather than treatment costs. Implications for ASCO's Value Framework and design of interventions to improve cost discussions are discussed.


Assuntos
Negro ou Afro-Americano/educação , Neoplasias/economia , Neoplasias/terapia , Oncologistas/ética , Relações Médico-Paciente/ética , Comunicação , Feminino , Humanos , Pessoa de Meia-Idade
9.
Cancer ; 121(20): 3668-75, 2015 Oct 15.
Artigo em Inglês | MEDLINE | ID: mdl-26110691

RESUMO

BACKGROUND: African American (AA) women are known to have poorer breast cancer survival than whites, and the differences may be related to underlying disparities in their clinical presentation or access to care. This study evaluated the relationship between demographic, treatment, and socioeconomic factors and breast cancer survival among women in southeast Michigan. METHODS: The population included 2387 women (34% AA) with American Joint Committee on Cancer stage I to III breast cancer who were treated at the Henry Ford Health System (HFHS) from 1996 through 2005. Linked data sets from the HFHS, the Metropolitan Detroit Cancer Surveillance System, and the US Census Bureau were used to obtain demographic and clinical information. Comorbidities were classified with the modified Charlson comorbidity index (CCI). Economic deprivation was categorized with a census tract-based deprivation index (DI), which was stratified into 5 quintiles of increasing socioeconomic disadvantage. RESULTS: Compared with whites, AA women were significantly more likely to have larger, hormone receptor-negative tumors and more comorbidities and to reside in an economically deprived area. In an unadjusted analysis, AAs had a significantly higher risk of death (hazard ratio [HR], 1.36; 95% confidence interval [CI], 1.16-1.59); however, after adjustments for clinical (age, stage, hormone receptor, and CCI) and societal factors (DI), the effect of race was not significant (HR, 1.13 [95% CI, 0.96-1.34] , and HR, 0.97 [0.80-1.19] respectively). CONCLUSIONS: Racial differences in breast cancer survival can be explained by clinical and socioeconomic factors. Nonetheless, AA women with breast cancer remain disproportionately affected by unfavorable tumor characteristics and economic deprivation, which likely contribute to their increased overall mortality.


Assuntos
Neoplasias da Mama/etnologia , Neoplasias da Mama/mortalidade , Acessibilidade aos Serviços de Saúde/economia , Negro ou Afro-Americano/estatística & dados numéricos , Neoplasias da Mama/economia , Neoplasias da Mama/patologia , Prestação Integrada de Cuidados de Saúde , Feminino , Humanos , Michigan/epidemiologia , Michigan/etnologia , Medição de Risco , Fatores Socioeconômicos , Taxa de Sobrevida/tendências , Serviços Urbanos de Saúde , População Branca/estatística & dados numéricos
10.
Cancer ; 121(4): 580-8, 2015 Feb 15.
Artigo em Inglês | MEDLINE | ID: mdl-25302685

RESUMO

BACKGROUND: Renal cell carcinoma (RCC) is the eighth leading cancer among women in incidence and commonly is diagnosed at a more advanced stage. Oxidative stress has been considered to play an important role in the pathogenesis of RCC. Various dietary micronutrients have antioxidant properties, including carotenoids and vitamins C and E; thus, diets rich in these nutrients have been evaluated in relation to RCC prevention. The objective of this study was to explore the correlation between antioxidant micronutrients and the risk of RCC. METHODS: In total, 96,196 postmenopausal women who enrolled in the Women's Health Initiative (WHI) between 1993 and 1998 and were followed through July 2013 were included in this analysis. Dietary micronutrient intake was estimated from the baseline WHI food frequency questionnaire, and data on supplement use were collected using an interview-based inventory procedure. RCC cases were ascertained from follow-up surveys and were centrally adjudicated. The risks for RCC associated with intake of α-carotene, ß-carotene, ß-cryptoxanthin, lutein plus zeaxanthin, lycopene, vitamin C, and vitamin E were analyzed using Cox proportional hazards regression adjusted for confounders. RESULTS: Two hundred forty women with RCC were identified during follow-up. Lycopene intake was inversely associated with RCC risk (P = .015); compared with the lowest quartile of lycopene intake, the highest quartile of intake was associated with a 39% lower risk of RCC (hazard ratio, 0.61; 95% confidence interval, 0.39-0.97). No other micronutrient was significantly associated with RCC risk. CONCLUSIONS: The current results suggest that further investigation into the correlation between lycopene intake and the risk of RCC is warranted.


Assuntos
Antioxidantes/administração & dosagem , Carcinoma de Células Renais/epidemiologia , Carcinoma de Células Renais/prevenção & controle , Carotenoides/administração & dosagem , Neoplasias Renais/epidemiologia , Neoplasias Renais/prevenção & controle , Micronutrientes/administração & dosagem , Saúde da Mulher , Idoso , Ácido Ascórbico/administração & dosagem , Ensaios Clínicos como Assunto , Criptoxantinas/administração & dosagem , Suplementos Nutricionais , Feminino , Seguimentos , Humanos , Luteína/administração & dosagem , Licopeno , Pessoa de Meia-Idade , Estudos Multicêntricos como Assunto , Razão de Chances , Pós-Menopausa , Modelos de Riscos Proporcionais , Resultado do Tratamento , Vitamina E/administração & dosagem , Zeaxantinas/administração & dosagem
12.
Accid Anal Prev ; 62: 110-8, 2014 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-24144496

RESUMO

Driver distraction is responsible for a substantial number of traffic accidents. This paper describes the impact of an auditory secondary task on drivers' mental states during a primary driving task. N=20 participants performed the test procedure in a car following task with repeated forced braking on a non-public test track. Performance measures (provoked reaction time to brake lights) and brain activity (EEG alpha spindles) were analyzed to describe distracted drivers. Further, a classification approach was used to investigate whether alpha spindles can predict drivers' mental states. Results show that reaction times and alpha spindle rate increased with time-on-task. Moreover, brake reaction times and alpha spindle rate were significantly higher while driving with auditory secondary task opposed to driving only. In single-trial classification, a combination of spindle parameters yielded a median classification error of about 8% in discriminating the distracted from the alert driving. Reduced driving performance (i.e., prolonged brake reaction times) during increased cognitive load is assumed to be indicated by EEG alpha spindles, enabling the quantification of driver distraction in experiments on public roads without verbally assessing the drivers' mental states.


Assuntos
Ritmo alfa/fisiologia , Atenção/fisiologia , Condução de Veículo , Encéfalo/fisiologia , Tempo de Reação/fisiologia , Acidentes de Trânsito , Estimulação Acústica , Adulto , Eletroencefalografia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Adulto Jovem
13.
Int J Breast Cancer ; 2012: 453985, 2012.
Artigo em Inglês | MEDLINE | ID: mdl-22690339

RESUMO

Background. Racial differences in breast cancer survival may be in part due to variation in patterns of care. To better understand factors influencing survival disparities, we evaluated patterns of receipt of adjuvant chemotherapy among 2,234 women with invasive, nonmetastatic breast cancer treated at the Henry Ford Health System (HFHS) from 1996 through 2005. Methods. Sociodemographic and clinical information were obtained from linked datasets from the HFHS, Metropolitan Detroit Cancer Surveillance Systems, and U.S. Census. Comorbidity was measured using the Charlson comorbidity index (CCI), and economic deprivation was categorized using a neighborhood deprivation index. Results. African American (AA) women were more likely than whites to have advanced tumors with more aggressive clinical features, to have more comorbidity and to be socioeconomically deprived. While in the unadjusted model, AAs were more likely to receive chemotherapy (odds ratio (OR) 1.22, 95% confidence interval (CI) 1.02-1.46) and to have a delay in receipt of chemotherapy beyond 60 days (OR 1.68, 95% CI, 1.26-1.48), after multivariable adjustment there were no racial differences in receipt (odds ratio (OR) 1.02, 95% confidence interval (CI) 0.73-1.43), or timing of chemotherapy (OR 1.18, 95 CI, 0.8-1.74). Conclusions. Societal factors and not race appear to have an impact on treatment delay among African American women with early breast cancer.

14.
Int J Psychophysiol ; 83(1): 110-8, 2012 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-22094045

RESUMO

The intention of this paper is to describe neurophysiological correlates of driver distraction with highly robust parameters in the EEG (i.e. alpha spindles). In a simulated driving task with two different secondary tasks (i.e. visuomotor, auditory), N=28 participants had to perform full stop brakes reacting to appearing stop signs and red traffic lights. Alpha spindle rate was significantly higher during an auditory secondary task and significantly lower during a visuomotor secondary task as compared to driving only. Alpha spindle duration was significantly shortened during a visuomotor secondary task. The results are consistent with the assumption that alpha spindles indicate active inhibition of visual information processing. Effects on the alpha spindles while performing secondary tasks on top of the driving task indicate attentional shift according to the task modality. As compared to alpha band power, both the measures of alpha spindle rate and alpha spindle duration were less vulnerable to artifacts and the effect sizes were larger, allowing for a more accurate description of the current driver state.


Assuntos
Ritmo alfa/fisiologia , Atenção/fisiologia , Condução de Veículo , Mapeamento Encefálico , Desempenho Psicomotor/fisiologia , Interface Usuário-Computador , Estimulação Acústica , Adulto , Análise de Variância , Eletroencefalografia , Feminino , Humanos , Masculino , Estimulação Luminosa , Tempo de Reação , Fatores de Tempo , Percepção Visual/fisiologia , Adulto Jovem
15.
J Natl Med Assoc ; 101(6): 552-64, 2009 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-19585923

RESUMO

A continuing challenge in weight loss treatment is attaining maintenance of weight loss. The goal of this study was to develop a counseling method that would assist African American breast cancer survivors with weight loss maintenance. In this pilot study, 31 obese breast cancer survivors were recruited. Individualized, dietitian-led counseling by telephone and free Weight Watchers coupons were provided to all participants for 18 months. At the 6-month time point, women were randomized to receive spirituality counseling or not in addition to the standard program. The spirituality counseling was delivered via telephone using an 8-step framework. Subjects were asked to utilize daily meditation or prayer, daily readings, and the recording of thoughts in a journal. Mean weight loss from baseline to 6 months was a modest 2.0% of baseline weight. From 6 to 18 months, there was no further weight change in the spirituality arm and a gain of 0.7% in the dietitian-only arm. Despite little effect on weight loss, it did appear that spirituality counseling positively affected spiritual well-being (FACIT-Sp) scores and dietary quality. The spirituality counseling framework therefore may be further refined and useful for other health promotion studies with African American populations.


Assuntos
Negro ou Afro-Americano , Neoplasias da Mama/psicologia , Aconselhamento Diretivo , Religião e Psicologia , Redução de Peso , Índice de Massa Corporal , Neoplasias da Mama/mortalidade , Registros de Dieta , Feminino , Humanos , Pessoa de Meia-Idade , Atividade Motora , Obesidade/complicações , Obesidade/dietoterapia , Obesidade/psicologia , Projetos Piloto , Qualidade de Vida , Inquéritos e Questionários , Análise de Sobrevida , Sobreviventes , Estados Unidos
16.
Breast Cancer Res Treat ; 117(2): 339-47, 2009 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-19152024

RESUMO

Only 3% of women with breast cancer participate in cancer clinical trials nationwide. The lack of awareness about clinical trials is a significant barrier towards clinical trials participation. A study was conducted at a large urban Comprehensive Cancer Center to test (1) the effectiveness of an 18-min educational video on improving attitudes toward clinical trials and trials enrollment among new breast cancer patients seen at the Karmanos Cancer Institute, and (2) to assess racial differences in attitudes regarding clinical trials. Participants were randomized to either the educational intervention prior to their first oncology clinic appointment or to standard care. A baseline and 2-week post-intervention survey to assess attitudes toward clinical trials participation was completed by participants. Of 218 subjects recruited, 196 (55% white vs. 45% African American (AA)) eligible patients were included in the analysis. A small increase in therapeutic clinical trial enrollment was observed in the intervention arm but was not statistically significant (10.4% vs. 6.1%; P = 0.277). The intervention also did not result in a clear improvement in patients' attitudes toward clinical trials at posttest. However, a lower enrollment rate for the AA women was noted after adjusting for stage (OR = 0.282, P = 0.049). Significantly more negative scores were noted in 3 out of the 5 baseline attitudinal scales for AA women. The educational video did not significantly increase enrollment in breast cancer clinical trials. The findings that AA women had significantly more negative attitudes toward clinical trials than white women may partially explain the racial disparity in enrollment. An educational video remains a simple and cost-effective way to educate patients. Future studies should focus on designing a new educational video to specifically target cultural and attitudinal barriers in the AA population to more effectively change attitudes and increase trial enrollment.


Assuntos
Neoplasias da Mama/terapia , Ensaios Clínicos como Assunto , Educação de Pacientes como Assunto/métodos , Seleção de Pacientes , Gravação em Vídeo , Atitude Frente a Saúde/etnologia , Neoplasias da Mama/patologia , Feminino , Humanos , Pessoa de Meia-Idade , Estadiamento de Neoplasias , Grupos Raciais
17.
Int Braz J Urol ; 30(5): 377-9, 2004.
Artigo em Inglês | MEDLINE | ID: mdl-15610568

RESUMO

Radical retropubic prostatectomy (RRP) is an operation historically associated with the potential for significant blood loss. Patients who refuse a blood transfusion, such as Jehovah's witnesses, may be only offered radiation therapy as potentially curative treatment for prostate cancer because of the potential for a transfusion. Intraoperative cell salvage (IOCS) is an effective blood management strategy for patients who are not willing to accept predonated autologous or allergenic blood. We present our management for Jehovah's Witness patients with clinically localized prostate cancer, emphasizing our blood management approach. This is the first such report.


Assuntos
Transfusão de Sangue Autóloga , Testemunhas de Jeová , Prostatectomia/métodos , Idoso , Humanos , Período Intraoperatório , Masculino , Pessoa de Meia-Idade
18.
Int. braz. j. urol ; 30(5): 377-379, Sept.-Oct. 2004.
Artigo em Inglês | LILACS | ID: lil-388876

RESUMO

Radical retropubic prostatectomy (RRP) is an operation historically associated with the potential for significant blood loss. Patients who refuse a blood transfusion, such as Jehovahs witnesses, may be only offered radiation therapy as potentially curative treatment for prostate cancer because of the potential for a transfusion. Intraoperative cell salvage (IOCS) is an effective blood managient strategy for patients who are not willing to accept predonated autologous or allergenic blood. We present our managient for Jehovah's Witness patients with clinically localized prostate cancer, iphasizing our blood managient approach. This is the first such report.


Assuntos
Idoso , Humanos , Masculino , Pessoa de Meia-Idade , Transfusão de Sangue Autóloga , Testemunhas de Jeová , Prostatectomia/métodos , Período Intraoperatório
19.
Int J Pharm ; 281(1-2): 45-54, 2004 Aug 20.
Artigo em Inglês | MEDLINE | ID: mdl-15288342

RESUMO

Chitosan has been extensively used as an absorption enhancer for macromolecules and as gene delivery vehicle. Both properties are molecular weight (MW) dependent. Here, we investigate factors affecting the oxidative depolymerization of chitosan and physicochemical properties of the resulting polymer fractions including their cytotoxicity. The molecular weight of the depolymerized chitosan was influenced by the initial concentration and the source of chitosan. At constant initial concentrations, the molecular weight decreased linearly with the chitosan/NaNO2 ratio and was a function of logarithm of the reaction time. Chitosan with larger molecular weight was more sensitive to depolymerization. No structural change was observed during the depolymerization process by infrared and proton nuclear magnetic resonance spectroscopy. In addition, thermal properties of chitosan fragments were studied by thermal gravimetric analysis and it was found that the decomposition temperature was molecular weight dependent. Furthermore, the solubility of different molecular weight chitosan was assayed as a function of pH and it increased with decreasing molecular weight. The cytotoxicity of chitosan was concentration dependent but almost molecular weight independent according to MTT assay using L929 cell line recommended by USP26. In summary, low molecular weight fractions of chitosan may potentially useful for the design of drug delivery systems due to the improved solubility properties.


Assuntos
Físico-Química/métodos , Quitosana/química , Quitosana/farmacologia , Polímeros/química , Materiais Biocompatíveis/normas , Sobrevivência Celular/efeitos dos fármacos , China , Avaliação Pré-Clínica de Medicamentos/métodos , Alemanha , Estrutura Molecular , Peso Molecular , Polímeros/farmacologia , Reprodutibilidade dos Testes , Nitrito de Sódio/química , Nitrito de Sódio/farmacologia , Solubilidade
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