Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 12 de 12
Filtrar
1.
J Psychosoc Oncol ; 42(2): 242-255, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-37486169

RESUMO

PURPOSE: To assess the impact of the COVID-19 pandemic on depression, anxiety, and loneliness between those with and without a history of cancer. DESIGN: This prospective observational study used a quantitative approach. PARTICIPANTS: Adult members of the Kaiser Permanente Research Bank (N = 104,640). METHODS: Participants completed a series of surveys from May to December 2020. The difference in score of depression, anxiety, and loneliness were estimated using linear mixed regression. FINDINGS: Among cancer survivors, 21% and 19% met the thresholds for increased risk of depression and anxiety. Among cancer survivors, younger age groups and females reported increased depression, anxiety, and loneliness scores. CONCLUSIONS: This study highlights the continued necessity of addressing mental health needs and social support in cancer survivors during and after a public health emergency. IMPLICATIONS FOR PSYCHOSOCIAL PROVIDERS: Cancer survivors may need particular resources after cancer treatment to strengthen resilience and improve quality of life.


Assuntos
COVID-19 , Sobreviventes de Câncer , Neoplasias , Adulto , Feminino , Humanos , Solidão/psicologia , Depressão/epidemiologia , Depressão/psicologia , Sobreviventes de Câncer/psicologia , Qualidade de Vida , Pandemias , Ansiedade/epidemiologia , Ansiedade/psicologia , Neoplasias/terapia
2.
Cancer Epidemiol Biomarkers Prev ; 33(3): 442-444, 2024 03 01.
Artigo em Inglês | MEDLINE | ID: mdl-38126877

RESUMO

BACKGROUND: Little is known about SARS-CoV-2 infection and COVID-19 severity among a growing population of cancer survivors. We describe the association of infection and related hospitalization by recency of cancer diagnosis in a large U.S. cohort. METHODS: Participants were sent electronic surveys between April 2020 and January 2021 to collect information on SARS-CoV-2 infection and potential COVID-19-related risk factors. SARS-CoV-2 infections were identified using survey report of a COVID-19-positive test and electronic health record data. Cumulative incidence of SARS-CoV-2 infection was estimated up to 365 days from baseline survey and stratified by recency of cancer diagnosis. Among those with SARS-CoV-2 infection, we used logistic regression to estimate the association between recency of cancer diagnosis and hospitalization within 30 days of infection. RESULTS: Cumulative incidence of SARS-CoV-2 infection at 365 days was 3.3% [95% confidence interval (CI), 3.2%-3.5%] among those without cancer history and ranged from 2.8% (95% CI, 2.3%-3.5%) to 3.7% (95% CI, 2.9%-4.7%) among those with a history of cancer depending on recency. There was no statistically significant difference in odds of hospitalization within 30 days following SARS-CoV-2 infection by cancer diagnosis recency. CONCLUSIONS: Our null findings are consistent with other studies on COVID-19 infection risk in cancer survivors, where COVID-19 severity and sequelae were independent of cancer history and were likely associated with factors such as intensive care unit admission, noncancer comorbid conditions, and long-term care residency. IMPACT: This study can inform COVID-19 risk-counseling of cancer survivors and their caregivers as we continue to contend with COVID-19.


Assuntos
COVID-19 , Sobreviventes de Câncer , Neoplasias , Humanos , COVID-19/epidemiologia , SARS-CoV-2 , Hospitalização , Progressão da Doença , Neoplasias/epidemiologia
3.
PLoS One ; 14(5): e0216114, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31067262

RESUMO

BACKGROUND: Breast density, as estimated by mammography, is a strong risk factor for breast cancer in pre- and postmenopausal women, but the determinants of breast density have not yet been established. The aim of this study was to assess if urinary estrogens or gut microbiota alterations are associated with mammographic density in postmenopausal women. METHODS: Among 54 cancer-free, postmenopausal controls in the Breast and Colon Health study, we classified low- versus high-density women with Breast Imaging Reporting and Data System (BI-RADS, 5th edition) mammographic screening data, then assessed associations with urinary estrogens and estrogen metabolites (determined by liquid chromatography/tandem mass spectrometry), and fecal microbiota alpha and beta diversity (using Illumina sequencing of 16S rRNA amplicons). RESULTS: Multiple logistic regression revealed no significant association between breast density and fecal microbiota metrics (PD_tree P-value = 0.82; un-weighted and weighted UniFrac P = 0.92 and 0.83, respectively, both by MiRKAT). In contrast, total urinary estrogens (and all 15 estrogens/estrogen metabolites) were strongly and inversely associated with breast density (P = 0.01) after adjustment for age and body mass index. CONCLUSION: Mammographic density was not associated with the gut microbiota, but it was inversely associated with urinary estrogen levels. IMPACT: The finding of an inverse association between urinary estrogens and breast density in cancer-free women adds to the growing breast cancer literature on understanding the relationship between endogenous estrogens and mammographic density.


Assuntos
Densidade da Mama , Estrogênios/urina , Fezes/microbiologia , Microbioma Gastrointestinal , Pós-Menopausa/fisiologia , Feminino , Microbioma Gastrointestinal/genética , Humanos , Modelos Logísticos , Pessoa de Meia-Idade , Pós-Menopausa/urina , RNA Ribossômico 16S/genética
4.
Cancer Epidemiol Biomarkers Prev ; 28(5): 996-999, 2019 05.
Artigo em Inglês | MEDLINE | ID: mdl-30967418

RESUMO

BACKGROUND: Relatively little is known about factors associated with long-term survival (LTS) following a diagnosis of ovarian cancer. METHODS: We conducted a retrospective study of high-grade serous ovarian cancer (HGSOC) to explore predictors of LTS (defined as ≥7 years of survival) using electronic medical record data from a network of integrated health care systems. Multivariable logistic regression with forward selection was used to compare characteristics of women who survived ≥7 years after diagnosis (n = 148) to those who died within 7 years of diagnosis (n = 494). RESULTS: Our final model included study site, age, stage at diagnosis, CA-125, comorbidity score, receipt of chemotherapy, BMI, and four separate comorbid conditions: weight loss, depression, hypothyroidism, and liver disease. Of these, only younger age, lower stage, and depression were statistically significantly associated with LTS. CONCLUSIONS: We did not identify any new characteristics associated with HGSOC survival. IMPACT: Prognosis of ovarian cancer generally remains poor. Large, pooled studies of ovarian cancer are needed to identify characteristics that may improve survival.


Assuntos
Sobreviventes de Câncer/estatística & dados numéricos , Cistadenocarcinoma Seroso/mortalidade , Neoplasias Ovarianas/mortalidade , Adolescente , Adulto , Fatores Etários , Idoso , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , California/epidemiologia , Colorado/epidemiologia , Comorbidade , Cistadenocarcinoma Seroso/tratamento farmacológico , Cistadenocarcinoma Seroso/patologia , Feminino , Seguimentos , Humanos , Pessoa de Meia-Idade , Gradação de Tumores , Estadiamento de Neoplasias , Neoplasias Ovarianas/tratamento farmacológico , Neoplasias Ovarianas/patologia , Prognóstico , Estudos Retrospectivos , Taxa de Sobrevida , Washington/epidemiologia , Adulto Jovem
5.
J Clin Oncol ; 35(20): 2329-2337, 2017 Jul 10.
Artigo em Inglês | MEDLINE | ID: mdl-28398847

RESUMO

In May 2016, the Division of Cancer Prevention and the Division of Cancer Control and Population Sciences, National Cancer Institute, convened a workshop to discuss a conceptual framework for identifying and genetically testing previously diagnosed but unreferred patients with ovarian cancer and other unrecognized BRCA1 or BRCA2 mutation carriers to improve the detection of families at risk for breast or ovarian cancer. The concept, designated Traceback, was prompted by the recognition that although BRCA1 and BRCA2 mutations are frequent in women with ovarian cancer, many such women have not been tested, especially if their diagnosis predated changes in testing guidelines. The failure to identify mutation carriers among probands represents a lost opportunity to prevent cancer in unsuspecting relatives through risk-reduction intervention in mutation carriers and to provide appropriate reassurances to noncarriers. The Traceback program could provide an important opportunity to reach families from racial, ethnic, and socioeconomic groups who historically have not sought or been offered genetic counseling and testing and thereby contribute to a reduction in health disparities in women with germline BRCA mutations. To achieve an interdisciplinary perspective, the workshop assembled international experts in genetics, medical and gynecologic oncology, clinical psychology, epidemiology, genomics, cost-effectiveness modeling, pathology, bioethics, and patient advocacy to identify factors to consider when undertaking a Traceback program. This report highlights the workshop deliberations with the goal of stimulating research and providing a framework for pilot studies to assess the feasibility and ethical and logistical considerations related to the development of best practices for implementation of Traceback studies.


Assuntos
Genes BRCA1 , Genes BRCA2 , Aconselhamento Genético , Testes Genéticos , Neoplasias Ovarianas/genética , Família , Feminino , Testes Genéticos/ética , Testes Genéticos/legislação & jurisprudência , Mutação em Linhagem Germinativa , Humanos , Aceitação pelo Paciente de Cuidados de Saúde , Linhagem , Privacidade , Sistema de Registros
6.
Int J Mol Sci ; 18(3)2017 Mar 14.
Artigo em Inglês | MEDLINE | ID: mdl-28335433

RESUMO

Formalin-fixed paraffin-embedded (FFPE) specimens, when used in conjunction with patient clinical data history, represent an invaluable resource for molecular studies of cancer. Even though nucleic acids extracted from archived FFPE tissues are degraded, their molecular analysis has become possible. In this study, we optimized a laboratory-based next-generation sequencing barcoded cDNA library preparation protocol for analysis of small RNAs recovered from archived FFPE tissues. Using matched fresh and FFPE specimens, we evaluated the robustness and reproducibility of our optimized approach, as well as its applicability to archived clinical specimens stored for up to 35 years. We then evaluated this cDNA library preparation protocol by performing a miRNA expression analysis of archived breast ductal carcinoma in situ (DCIS) specimens, selected for their relation to the risk of subsequent breast cancer development and obtained from six different institutions. Our analyses identified six miRNAs (miR-29a, miR-221, miR-375, miR-184, miR-363, miR-455-5p) differentially expressed between DCIS lesions from women who subsequently developed an invasive breast cancer (cases) and women who did not develop invasive breast cancer within the same time interval (control). Our thorough evaluation and application of this laboratory-based miRNA sequencing analysis indicates that the preparation of small RNA cDNA libraries can reliably be performed on older, archived, clinically-classified specimens.


Assuntos
Neoplasias da Mama/patologia , Carcinoma Ductal de Mama/patologia , Biblioteca Gênica , MicroRNAs/química , Inclusão em Parafina/métodos , Análise de Sequência de DNA/métodos , Neoplasias da Mama/genética , Neoplasias da Mama/metabolismo , Carcinoma Ductal de Mama/genética , Carcinoma Ductal de Mama/metabolismo , Feminino , Humanos , Células MCF-7 , Inclusão em Parafina/normas , Análise de Sequência de DNA/normas
7.
PLoS One ; 8(12): e84535, 2013.
Artigo em Inglês | MEDLINE | ID: mdl-24376822

RESUMO

BACKGROUND: Treatment with neoadjuvant chemotherapy (NAC) has made it possible for some women to be successfully treated with breast conservation therapy (BCT ) who were initially considered ineligible. Factors related to current practice patterns of NAC use are important to understand particularly as the surgical treatment of invasive breast cancer has changed. The goal of this study was to determine variations in neoadjuvant chemotherapy use in a large multi-center national database of patients with breast cancer. METHODS: We evaluated NAC use in patients with initially operable invasive breast cancer and potential impact on breast conservation rates. Records of 2871 women ages 18-years and older diagnosed with 2907 invasive breast cancers from January 2003 to December 2008 at four institutions across the United States were examined using the Breast Cancer Surgical Outcomes (BRCASO) database. Main outcome measures included NAC use and association with pre-operatively identified clinical factors, surgical approach (partial mastectomy [PM] or total mastectomy [TM]), and BCT failure (initial PM followed by subsequent TM). RESULTS: Overall, NAC utilization was 3.8%l. Factors associated with NAC use included younger age, pre-operatively known positive nodal status, and increasing clinical tumor size. NAC use and BCT failure rates increased with clinical tumor size, and there was significant variation in NAC use across institutions. Initial TM frequency approached initial PM frequency for tumors >30-40 mm; BCT failure rate was 22.7% for tumors >40 mm. Only 2.7% of patients undergoing initial PM and 7.2% undergoing initial TM received NAC. CONCLUSIONS: NAC use in this study was infrequent and varied among institutions. Infrequent NAC use in patients suggests that NAC may be underutilized in eligible patients desiring breast conservation.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Neoplasias da Mama/tratamento farmacológico , Terapia Neoadjuvante/métodos , Adulto , Fatores Etários , Neoplasias da Mama/patologia , Neoplasias da Mama/cirurgia , Feminino , Humanos , Análise Multivariada , Resultado do Tratamento
8.
Genet Med ; 15(12): 933-40, 2013 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-23639899

RESUMO

PURPOSE: The aim of this study was to examine Lynch syndrome screening of patients with metastatic colorectal cancer in integrated health-care-delivery organizations. METHODS: We determined the availability of Lynch syndrome screening criteria and actual Lynch syndrome screening in the medical records of 1,188 patients diagnosed with metastatic colorectal cancer between 2004 and 2009 at seven institutions in the Cancer Research Network. RESULTS: We found infrequent use of Lynch syndrome screening (41/1,188). Family history was available for 937 of the 1,188 patients (79%). There was sufficient information to assess Lynch syndrome risk using family history-based criteria in 719 of the 937 patients (77%) with family history documentation. In 391 individuals with a family history of a Lynch syndrome-associated cancer, 107 (27%) could not be evaluated due to missing information such as age of cancer onset. Eleven percent of patients who met the Bethesda criteria and 25% of individuals who met the Amsterdam II criteria were screened for Lynch syndrome. Recommended guidelines were adhered to during screening, but no testing method was preferred. CONCLUSION: The information required for Lynch syndrome screening decisions is routinely collected but seldom used. There is a critical gap between collection of family history and its use to guide Lynch syndrome screening, which may support a case for implementation of universal screening guidelines.


Assuntos
Neoplasias Colorretais Hereditárias sem Polipose/diagnóstico , Neoplasias Colorretais Hereditárias sem Polipose/genética , Testes Genéticos/estatística & dados numéricos , Idoso , Coleta de Dados , Atenção à Saúde/organização & administração , Saúde da Família , Feminino , Humanos , Masculino , Anamnese , Prontuários Médicos , Pessoa de Meia-Idade , Mutação , Metástase Neoplásica , Guias de Prática Clínica como Assunto
9.
Cancer Epidemiol Biomarkers Prev ; 19(5): 1349-55, 2010 May.
Artigo em Inglês | MEDLINE | ID: mdl-20406958

RESUMO

BACKGROUND: Genome-wide association studies have identified multiple genetic variants associated with susceptibility to prostate cancer (PrCa). In the two-stage Cancer Genetic Markers of Susceptibility prostate cancer scan, a single-nucleotide polymorphism (SNP), rs10486567, located within intron 2 of JAZF1 gene on chromosome 7p15.2, showed a promising association with PrCa overall (P=2.14x10(-6)), with a suggestion of stronger association with aggressive disease (P=1.2x10(-7)). METHODS: In the third stage of genome-wide association studies, we genotyped 106 JAZF1 SNPs in 10,286 PrCa cases and 9,135 controls of European ancestry. RESULTS: The strongest association was observed with the initial marker rs10486567, which now achieves genome-wide significance [P=7.79x10(-11); ORHET, 1.19 (95% confidence interval, 1.12-1.27); ORHOM, 1.37 (95% confidence interval, 1.20-1.56)]. We did not confirm a previous suggestion of a stronger association of rs10486567 with aggressive disease (P=1.60x10(-4) for aggressive cancer, n=4,597; P=3.25x10(-8) for nonaggressive cancer, n=4,514). Based on a multilocus model with adjustment for rs10486567, no additional independent signals were observed at chromosome 7p15.2. There was no association between PrCa risk and SNPs in JAZF1 previously associated with height (rs849140; P=0.587), body stature (rs849141, tagged by rs849136; P=0.171), and risk of type 2 diabetes and systemic lupus erythematosus (rs864745, tagged by rs849142; P=0.657). CONCLUSION: rs10486567 remains the most significant marker for PrCa risk within JAZF1 in individuals of European ancestry. IMPACT: Future studies should identify all variants in high linkage disequilibrium with rs10486567 and evaluate their functional significance for PrCa.


Assuntos
Cromossomos Humanos Par 7/genética , Proteínas de Neoplasias/genética , Polimorfismo de Nucleotídeo Único/genética , Neoplasias da Próstata/genética , Estudos de Casos e Controles , Proteínas Correpressoras , Proteínas de Ligação a DNA , Estudo de Associação Genômica Ampla , Humanos , Masculino , Análise de Componente Principal , Prognóstico , Fatores de Risco , Taxa de Sobrevida
10.
Cancer Epidemiol Biomarkers Prev ; 17(3): 655-60, 2008 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-18349283

RESUMO

BACKGROUND: Studies of postmenopausal hormone therapy and lung cancer incidence have reported positive, negative, and null associations. Most of these studies, however, have had limited ability to control rigorously for cigarette smoking or to examine risk separately by smoking status. METHODS: We examined the association between postmenopausal hormone therapy and lung cancer incidence by smoking status among 72,772 women in the Cancer Prevention Study II Nutrition Cohort. Proportional hazards modeling was used to calculate rate ratios (RR). RESULTS: During follow-up from 1992 to 2003, we identified 659 cases of incident lung cancer. Current use of any postmenopausal hormone therapy was significantly associated with decreased risk of incident lung cancer [multivariate RR, 0.76; 95% confidence interval (95% CI), 0.62-0.92]. Similar risk estimates were observed for unopposed estrogen use (RR, 0.76; 95% CI, 0.60-0.94) and for estrogen plus progestin (RR, 0.76; 95% CI, 0.57-1.01). Risk associated with current use of postmenopausal hormone therapy was decreased among never smokers (RR, 0.56; 95% CI, 0.33-0.95) as well as current smokers (RR, 0.76; 95% CI, 0.55-1.05) and former smokers (RR, 0.76; 95% CI, 0.58-0.99). Former hormone use was not associated with lung cancer. No trend with duration of hormone use was detected. CONCLUSION: These results support the hypothesis that postmenopausal hormone therapy is associated with reduced risk of lung cancer, although the absence of a dose-response relationship weakens the evidence for causality.


Assuntos
Terapia de Reposição de Estrogênios , Neoplasias Pulmonares/epidemiologia , Idoso , Feminino , Humanos , Incidência , Pessoa de Meia-Idade , Pós-Menopausa , Modelos de Riscos Proporcionais , Estudos Prospectivos , Fatores de Risco , Fumar/efeitos adversos , Fumar/epidemiologia
11.
Cancer Epidemiol Biomarkers Prev ; 16(11): 2237-46, 2007 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-18006912

RESUMO

CYP17 encodes cytochrome p450c17alpha, which mediates activities essential for the production of sex steroids. Common germ line variation in the CYP17 gene has been related to inconsistent results in breast and prostate cancer, with most studies focusing on the nonsynonymous single nucleotide polymorphism (SNP) T27C (rs743572). We comprehensively characterized variation in CYP17 by direct sequencing of exons followed by dense genotyping across the 58 kb region around CYP17 in five racial/ethnic populations. Two blocks of strong linkage disequilibrium were identified and nine haplotype-tagging SNPs, including T27C, were chosen to predict common haplotypes (R(h)(2) >or= 0.85). These haplotype-tagging SNPs were genotyped in 8,138 prostate cancer cases and 9,033 controls, and 5,333 breast cancer cases and 7,069 controls from the Breast and Prostate Cancer Cohort Consortium. We observed borderline significant associations with prostate cancer for rs2486758 [TC versus TT, odds ratios (OR), 1.07; 95% confidence intervals (95% CI), 1.00-1.14; CC versus TT, OR, 1.09; 95% CI, 0.95-1.26; P trend=0.04] and rs6892 (AG versus AA, OR, 1.08; 95% CI, 1.00-1.15; GG versus AA, OR, 1.11; 95% CI, 0.95-1.30; P trend=0.03). We also observed marginally significant associations with breast cancer for rs4919687 (GA versus GG, OR, 1.04; 95% CI, 0.97-1.12, AA versus GG, OR, 1.17; 95% CI, 1.03-1.34; P trend=0.03) and rs4919682 (CT versus CC, OR, 1.04; 95% CI, 0.97-1.12; TT versus CC, OR, 1.16; 95% CI, 1.01-1.33; P trend=0.04). Common variation at CYP17 was not associated with circulating sex steroid hormones in men or postmenopausal women. Our findings do not support the hypothesis that common germ line variation in CYP17 makes a substantial contribution to postmenopausal breast or prostate cancer susceptibility.


Assuntos
Neoplasias da Mama/enzimologia , Neoplasias da Mama/genética , Neoplasias da Próstata/enzimologia , Neoplasias da Próstata/genética , Esteroide 17-alfa-Hidroxilase/genética , Estudos de Casos e Controles , Estudos de Coortes , Comportamento Cooperativo , Feminino , Predisposição Genética para Doença , Variação Genética , Hormônios Esteroides Gonadais/metabolismo , Haplótipos , Humanos , Masculino , Mutação de Sentido Incorreto , Polimorfismo de Nucleotídeo Único , Pós-Menopausa/metabolismo , Esteroide 17-alfa-Hidroxilase/metabolismo
12.
Hum Genet ; 116(6): 497-506, 2005 May.
Artigo em Inglês | MEDLINE | ID: mdl-15726418

RESUMO

We sequenced the entire coding region of BRCA1 to improve our understanding of the frequency and nature of BRCA1 variants in African-American and Latina women identified from a multiethnic cohort in Los Angeles, California. The study included 109 African-American and 140 Latina sibships from families with two or more cases of breast or ovarian cancer among first-degree relatives. BRCA1 was sequenced in 278 breast or ovarian cancer cases and 229 unaffected sisters. The proportion of cases with known disease-causing mutations was low (0.72, 95% confidence interval: 0-1.7%). In total, 33 sequence variants were identified, including two protein truncation mutations, one deletion, and six silent and 24 missense variants. Two novel rare variants were identified that appeared to act as benign polymorphisms. Four rare variants may be unique to women of African descent based on existing literature, and three have been described exclusively in Latina women. The frequency of common variants was similar for cases and controls, but the frequency of common variants for African-American women significantly differed from those previously described for Caucasian women. We believe this to be the largest study of high-risk African-American and Latina women sequenced for variants in the BRCA1 gene to date.


Assuntos
Negro ou Afro-Americano/genética , Neoplasias da Mama/genética , Genes BRCA1 , Hispânico ou Latino/genética , Neoplasias Ovarianas/genética , Adulto , Idoso , Mapeamento Cromossômico , Estudos de Coortes , Saúde da Família/etnologia , Feminino , Frequência do Gene , Variação Genética , Humanos , Pessoa de Meia-Idade , Mutação , Análise de Sequência de DNA
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA
...