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1.
Climacteric ; 25(5): 510-515, 2022 10.
Artigo em Inglês | MEDLINE | ID: mdl-35652469

RESUMO

OBJECTIVE: We gained insights into women's experiences and knowledge about the occurrence of vaginal bleeding during perimenopause requiring evaluation. METHODS: Qualitative inquiry was chosen to explore topics in greater depth to understand individuals' experiences. Interviews with individuals were chosen due to the sensitive nature of gynecologic symptoms and management. Interviews were completed following gynecologic care to explore individuals' experiences with the evaluation and management of vaginal bleeding during perimenopause. RESULTS: Twelve individuals were interviewed between December 2019 and March 2020. Patient uncertainty about the medical significance of developing vaginal bleeding during perimenopause was associated with self-appraisal and gathering information from multiple sources. This experience of seeking evaluation and treatment resulted in varying degrees of trust concerning information received within or outside the clinic. Regarding new technologies that could replace the current invasive tests performed for diagnosis (i.e. ultrasound, hysteroscopy and biopsy), most women preferred the smartphone app and tampon home collection option. CONCLUSIONS: The experience of irregular or heavy vaginal bleeding during perimenopause is fraught with ambiguity, feelings of uncertainty about how to make sense of symptoms and inevitably begins with a period of self-appraisal.


Assuntos
Perimenopausa , Hemorragia Uterina , Biópsia , Feminino , Humanos , Histeroscopia , Projetos Piloto , Gravidez , Hemorragia Uterina/diagnóstico , Hemorragia Uterina/etiologia , Hemorragia Uterina/patologia
2.
Int J Cancer ; 140(11): 2451-2460, 2017 06 01.
Artigo em Inglês | MEDLINE | ID: mdl-28257597

RESUMO

Internationally, ovarian cancer is the 7th leading cancer diagnosis and 8th leading cause of cancer mortality among women. Ovarian cancer incidence varies by region, particularly when comparing high vs. low-income countries. Temporal changes in reproductive factors coupled with shifts in diagnostic criteria may have influenced incidence trends of ovarian cancer and relative rates by histologic subtype. Accordingly, we evaluated trends in ovarian cancer incidence overall (1973-1977 to 2003-2007) and by histologic subtype (1988-1992 to 2003-2007) using volumes IV-IX of the Cancer Incidence in Five Continents database (CI5plus) and CI5X (volume X) database. Annual percent changes were calculated for ovarian cancer incidence trends, and rates of histologic subtypes for individual countries were compared to overall international incidence. Ovarian cancer incidence rates were stable across regions, although there were notable increases in Eastern/Southern Europe (e.g., Poland: Annual Percent Change (APC) 1.6%, p = 0.02) and Asia (e.g., Japan: APC 1.7%, p = 0.01) and decreases in Northern Europe (e.g., Denmark: APC -0.7%, p = 0.01) and North America (e.g., US Whites: APC -0.9%, p < 0.01). Relative proportions of histologic subtypes were similar across countries, except for Asian nations, where clear cell and endometrioid carcinomas comprised a higher proportion of the rate and serous carcinomas comprised a lower proportion of the rate than the worldwide distribution. Geographic variation in temporal trends of ovarian cancer incidence and differences in the distribution of histologic subtype may be partially explained by reproductive and genetic factors. Thus, histology-specific ovarian cancer should continue to be monitored to further understand the etiology of this neoplasm.


Assuntos
Neoplasias Ovarianas/epidemiologia , Neoplasias Ovarianas/patologia , Bases de Dados Factuais , Feminino , Humanos , Incidência , Sistema de Registros
3.
Br J Cancer ; 112(1): 61-8, 2015 Jan 06.
Artigo em Inglês | MEDLINE | ID: mdl-25474246

RESUMO

BACKGROUND: Aberrant expression of microRNAs (miRNAs) is associated with cancer progression, initiation and metastasis. MiR34a is a miRNA that has been previously described as a tumour suppressor. Herein, we assess the expression of miR34a in three independent breast cancer cohorts using a quantitative in situ hybridisation assay (qISH) and determined its association with disease-specific death in breast cancer. METHODS: The qISH method was applied to three independent primary breast cancer cohorts (Cohort 1 with 461, Cohort 2 with 279 and Cohort 3 with 795 patients) using 5' and 3' double DIG-labelled LNA-modified probe against miR34a using the protocol described previously. Level of expression measured as automated quantitative analysis (AQUA) score for miR34a was determined for each patient and assessed for association with risk of disease-specific death. An optimal cutpoint was determined using the X-tile software for disease-specific survival in Cohort 1 and this cutpoint was then applied to the other two cohorts after median normalisation of AQUA scores. RESULTS: Loss of miR34a is associated with poor outcome in three independent breast cancer cohorts (uncorrected log-rank P=0.0188 for Cohort 1, log-rank P=0.0024 for Cohort 2 and log-rank P=0.0455 for Cohort 3). In all three cohorts, loss of miR34a is able to stratify patients with poor disease-specific survival among node-negative patients, but not in node-positive population. Multivariate Cox proportional hazards analysis in Cohort 1 (P=0.0381) and Cohort 2 (P=0.0468) revealed that loss of miR34a is associated with poor outcome, independent of age, node status, receptor status and tumour size. CONCLUSION: Loss of the tumour suppressor, miR34a, identifies a subgroup of breast cancer patients with poor disease-specific survival. This study is consistent with the well-established preclinical observations for miR34a as a tumour suppressor and suggests that miR34a may have future value as a biomarker in breast cancer.


Assuntos
Neoplasias da Mama/genética , MicroRNAs/metabolismo , Biomarcadores Tumorais/genética , Neoplasias da Mama/patologia , Estudos de Coortes , Feminino , Humanos , MicroRNAs/genética , Prognóstico , Modelos de Riscos Proporcionais , Estudos Prospectivos , Análise de Sobrevida , Resultado do Tratamento
4.
Br J Cancer ; 107(7): 1181-7, 2012 Sep 25.
Artigo em Inglês | MEDLINE | ID: mdl-22929888

RESUMO

BACKGROUND: Women using unopposed estrogens during menopause are at increased risk of ovarian cancer. It is uncertain whether oestrogen plus progestin therapy exerts similar effects. METHODS: We evaluated menopausal hormone use and incident ovarian cancer (n=426) in 92601 post-menopausal women enrolled in the National Institutes of Health-AARP (NIH-AARP) Diet and Health Study. Participants were administered questionnaires in 1996-1997 and followed through 2006. Hazard rate ratios (RR) and 95% confidence intervals (CIs) were estimated using Cox regression. RESULTS: Increased risks were associated with long duration (10+ years) use of unopposed oestrogen (RR 2.15, 95% CI: 1.30-3.57 among women with a hysterectomy) and oestrogen plus progestin (RR 1.68, 95% CI: 1.13-2.49 among women with intact uteri) therapy. Similar risks were associated with progestins that were used sequentially (<15 days progestin per month) (RR 1.60, 95% CI: 1.10-2.33) or continuously (>25 days progestin per month) (RR 1.43, 95% CI: 1.032-2.01; P-value for heterogeneity=0.63). CONCLUSION: Our findings suggest that long duration use of both unopposed estrogens and oestrogen plus progestins are associated with increased risks of ovarian cancer, and that risk associated with oestrogen plus progestin use does not vary by regimen (sequential or continuous).


Assuntos
Dieta/estatística & dados numéricos , Terapia de Reposição de Estrogênios/estatística & dados numéricos , Estrogênios/administração & dosagem , Neoplasias Ovarianas/epidemiologia , Progestinas/administração & dosagem , Idoso , Estudos de Coortes , Terapia de Reposição de Estrogênios/efeitos adversos , Estrogênios/efeitos adversos , Feminino , Seguimentos , Humanos , Pessoa de Meia-Idade , National Institutes of Health (U.S.) , Neoplasias Ovarianas/induzido quimicamente , Pós-Menopausa , Progestinas/efeitos adversos , Risco , Inquéritos e Questionários , Estados Unidos/epidemiologia
5.
Br J Cancer ; 103(7): 1097-102, 2010 Sep 28.
Artigo em Inglês | MEDLINE | ID: mdl-20736944

RESUMO

BACKGROUND: Previous prospective studies have found an association between prolactin (PRL) levels and increased risk of breast cancer. Using data from a population-based breast cancer case-control study conducted in two cities in Poland (2000-2003), we examined the association of PRL levels with breast cancer risk factors among controls and with tumour characteristics among the cases. METHODS: We analysed PRL serum levels among 773 controls without breast cancer matched on age and residence to 776 invasive breast cancer cases with available pretreatment serum. Tumours were centrally reviewed and prepared as tissue microarrays for immunohistochemical analysis. Breast cancer risk factors, assessed by interview, were related to serum PRL levels among controls using analysis of variance. Mean serum PRL levels by tumour characteristics are reported. These associations also were evaluated using polytomous logistic regression. RESULTS: Prolactin levels were associated with nulliparity in premenopausal (P=0.05) but not in postmenopausal women. Associations in postmenopausal women included an inverse association with increasing body mass index (P=0.0008) and direct association with use of recent/current hormone therapy (P=0.0006). In case-only analyses, higher PRL levels were more strongly associated with lobular compared with ductal carcinoma among postmenopausal women (P=0.02). Levels were not different by tumour size, grade, node involvement or oestrogen receptor, progesterone receptor, or human epidermal growth factor receptor 2 status. CONCLUSIONS: Our analysis demonstrates that PRL levels are higher among premenopausal nulliparous as compared with parous women. Among postmenopausal women, levels were higher among hormone users and lower among obese women. These results may have value in understanding the mechanisms underlying several breast cancer risk factor associations.


Assuntos
Neoplasias da Mama/sangue , Prolactina/sangue , Adulto , Estudos de Casos e Controles , Feminino , Humanos , Pessoa de Meia-Idade , Paridade , Polônia/epidemiologia , Pós-Menopausa , Gravidez , Pré-Menopausa , Fatores de Risco
6.
Breast Cancer Res Treat ; 113(1): 189-96, 2009 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-18256926

RESUMO

BACKGROUND: In 2001, the National Cancer Institute's Surveillance, Epidemiology, and End Results (SEER) program established Residual Tissue Repositories (RTR) in the Hawaii, Iowa, and Los Angeles Tumor Registries to collect discarded tissue blocks from pathologic laboratories within their catchment areas. To validate the utility of the RTR for supplementing SEER's central database, we assessed human epidermal growth factor receptor-2 (HER2) and estrogen receptor expression (ER) in a demonstration project. MATERIALS: Using a prepared set of tissue microarrays (TMAs) residing in the Hawaii Tumor Registry (HTR), we performed standard immunohistochemistry. Breast cancers in the TMA were diagnosed in 1995, followed through 2006, and linked to SEER's main database. RESULTS: The TMA included 354 cases, representing 51% of 687 breast cancers in the HTR (1995). The HTR and TMA cases were similar with respect to patient demographics and tumor characteristics. Seventy-six percent (76%, 268 of 354) of TMA cases were HER2+ and/or ER+, i.e., 28 HER2+ER-, 12 HER2+ER+, and 228 HER2-ER+. There were 67 HER2-ER- cases and 19 were unclassified. Age distributions at diagnosis were bimodal with dominant early-onset modes for HER2+ER- tumors and dominant late-onset modes for HER2-ER+ breast cancers. Epidemiologic patterns for concordant HER2+ER+ (double-positive) and HER2-ER- (double-negative) were intermediate to discordant HER2+ER- and HER2-ER+. CONCLUSION: Results showed contrasting incidence patterns for HER2+ (HER2+ER-) and ER+ (HER2-ER+) breast cancers, diagnosed in 1995. Though sample sizes were small, this demonstration project validates the potential utility of the RTR for supplementing the SEER program.


Assuntos
Neoplasias da Mama/genética , Receptor ErbB-2/genética , Receptores de Estrogênio/genética , Distribuição por Idade , Idade de Início , Neoplasias da Mama/epidemiologia , Neoplasias da Mama/patologia , Feminino , Humanos , Imuno-Histoquímica , Incidência , Pessoa de Meia-Idade , Análise de Sequência com Séries de Oligonucleotídeos , Receptores de Progesterona/análise , Sistema de Registros , Reprodutibilidade dos Testes , Programa de SEER
7.
J Clin Microbiol ; 46(8): 2759-65, 2008 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-18550741

RESUMO

Variations in biological behavior suggest that each carcinogenic human papillomavirus (HPV) type should be considered individually in etiologic studies. HPV genotyping assays might have clinical applications if they are approved for use by the FDA. A widely used genotyping assay is the Roche Linear Array HPV genotyping test (LA). We used LA to genotype the HPV isolates from cervical specimens from women with the full spectrum of cervical disease: cervical cancer, cervical intraepithelial neoplasia (CIN), and HPV infections. To explore the feasibility and value of the automated reading of the LA results, we custom-designed novel, optical imaging software that provides optical density measurements of LA bands. We compared unmagnified visual examination with the automated measurements. The two measurements were highly associated. By either method, the threshold between a negative and a positive result was fairly sharp, with a clear bimodal distribution. Visually, most positive results were judged to be strong or medium, with fewer equivocal results categorized as weak (9.5% of positive samples), very weak (6.5% of positive samples), or extremely weak (7.7% of positive samples). The automated measurements of the intensities were significantly associated with the strength of the visual categories (P < 0.001). At the extremes of the automated signal intensities (< or = 20 units or > or = 120 units), the bands were almost always categorized visually as negative and positive, respectively. In the equivocal zone (20 to 119 units), specimens were more increasingly likely to be judged to be visually positive as the number of other, definite infections on the same strip increased (P for trend < 0.001). Multiple, concurrent infections comprise > or = 25% of HPV infections; thus, any systematic visual tendency that influences their evaluation when the result is equivocal should be minimized. Therefore, automated reading is probably worth development if easy-to-calibrate hardware and software can be optimized.


Assuntos
DNA Viral/genética , Processamento de Imagem Assistida por Computador/métodos , Técnicas de Diagnóstico Molecular/métodos , Papillomaviridae/classificação , Papillomaviridae/isolamento & purificação , Automação , Colo do Útero/virologia , Feminino , Genótipo , Humanos , Papillomaviridae/genética , Software , Mulheres
8.
Br J Cancer ; 98(1): 45-53, 2008 Jan 15.
Artigo em Inglês | MEDLINE | ID: mdl-18026193

RESUMO

Classifying endometrial hyperplasia (EH) according to the severity of glandular crowding (simple hyperplasia (SH) vs complex hyperplasia (CH)) and nuclear atypia (simple atypical hyperplasia (SAH) vs complex atypical hyperplasia (CAH)) should predict subsequent endometrial carcinoma risk, but data on progression are lacking. Our nested case-control study of EH progression included 138 cases, who were diagnosed with EH and then with carcinoma (1970-2003) at least 1 year (median, 6.5 years) later, and 241 controls, who were individually matched on age, date, and follow-up duration and counter-matched on EH classification. After centralised pathology panel and medical record review, we generated rate ratios (RRs) and 95% confidence intervals (CIs), adjusted for treatment and repeat biopsies. With disordered proliferative endometrium (DPEM) as the referent, AH significantly increased carcinoma risk (RR=14, 95% CI, 5-38). Risk was highest 1-5 years after AH (RR=48, 95% CI, 8-294), but remained elevated 5 or more years after AH (RR=3.5, 95% CI, 1.0-9.6). Progression risks for SH (RR=2.0, 95% CI, 0.9-4.5) and CH (RR=2.8, 95% CI, 1.0-7.9) were substantially lower and only slightly higher than the progression risk for DPEM. The higher progression risks for AH could foster management guidelines based on markedly different progression risks for atypical vs non-atypical EH.


Assuntos
Hiperplasia Endometrial/diagnóstico , Neoplasias do Endométrio/diagnóstico , Adulto , Idoso , Estudos de Casos e Controles , Progressão da Doença , Feminino , Humanos , Pessoa de Meia-Idade , Planos de Pré-Pagamento em Saúde , Fatores de Risco
9.
Br J Cancer ; 96(9): 1450-6, 2007 May 07.
Artigo em Inglês | MEDLINE | ID: mdl-17426703

RESUMO

We conducted a population-based case-control study of reproductive factors in Warsaw and Lódz, Poland, in 551 incident endometrial cancer cases and 1925 controls. The reproductive variable most strongly related to risk was multiparity, with subjects with three or more births having a 70% lower risk than the nulliparous women. The reduced risk was particularly strong below 55 years of age. Subjects with older ages at a first birth were also at reduced risk even after adjustment for number of births. Ages at last birth or intervals since last birth were not strongly related to risk. Spontaneous abortions were unrelated to risk, but induced abortions were associated with slight risk increases (odds ratios=1.28, 95% confidence intervals 0.8-2.1 for 3+ vs no abortions). The absence of effects on risk of later ages at, or short intervals since, a last birth fails to support the view that endometrial cancer is influenced by mechanical clearance of initiated cells. Alternative explanations for reproductive effects should be sought, including alterations in endogenous hormones.


Assuntos
Neoplasias do Endométrio/complicações , Fertilidade/fisiologia , Paridade/fisiologia , Adolescente , Idoso , Estudos de Casos e Controles , Feminino , Humanos , Pessoa de Meia-Idade , Polônia , Gravidez , Fatores de Risco
10.
Br J Cancer ; 95(1): 123-9, 2006 Jul 03.
Artigo em Inglês | MEDLINE | ID: mdl-16755295

RESUMO

Breast cancer is a morphologically and clinically heterogeneous disease; however, it is less clear how risk factors relate to tumour features. We evaluated risk factors by tumour characteristics (histopathologic type, grade, size, and nodal status) in a population-based case-control of 2386 breast cancers and 2502 controls in Poland. Use of a novel extension of the polytomous logistic regression permitted simultaneous modelling of multiple tumour characteristics. Late age at first full-term birth was associated with increased risk of large (> 2 cm) tumours (odds ratios (95% confidence intervals) 1.19 (1.07-1.33) for a 5-year increase in age), but not smaller tumours (P for heterogeneity adjusting for other tumour features (Phet) = 0.007). On the other hand, multiparity was associated with reduced risk for small tumours (0.76 (0.68-0.86) per additional birth; Phet = 0.004). Consideration of all tumour characteristics simultaneously revealed that current or recent use of combined hormone replacement therapy was associated with risk of small (2.29 (1.66-3.15)) and grade 1 (3.36 (2.22-5.08)) tumours (Phet = 0.05 for size and 0.0008 for grade 1 vs 3), rather than specific histopathologic types (Phet = 0.63 for ductal vs lobular). Finally, elevated body mass index was associated with larger tumour size among both pre- and postmenopausal women (Phet = 0.05 and 0.0001, respectively). None of these relationships were explained by hormone receptor status of the tumours. In conclusion, these data support distinctive risk factor relationships by tumour characteristics of prognostic relevance. These findings might be useful in developing targeted prevention efforts.


Assuntos
Neoplasias da Mama/classificação , Neoplasias da Mama/diagnóstico , Neoplasias da Mama/epidemiologia , Estudos de Casos e Controles , Feminino , Humanos , Pessoa de Meia-Idade , Modelos Estatísticos , Invasividade Neoplásica , Razão de Chances , Polônia/epidemiologia , Vigilância da População , Prognóstico , Fatores de Risco
11.
Br J Cancer ; 94(11): 1690-6, 2006 Jun 05.
Artigo em Inglês | MEDLINE | ID: mdl-16670716

RESUMO

Cervical smears prepared around the time of menses have been linked to unsatisfactory specimens and false negative results; however, it is unclear whether liquid-based cytology is similarly affected and data relating date of last menstrual period (LMP) to human papillomavirus (HPV) DNA testing are conflicting. Accordingly, we evaluated liquid-based cytology and HPV test results using Hybrid Capture 2 and PCR by LMP (days 0-10; 11-21; 22-28). We studied 5060 participants in ALTS, the Atypical Squamous Cells of Undetermined Significance (ASCUS) Low Grade Squamous Intraepithelial Lesion (LSIL) Triage Study. On average, women had 3.4 examinations (median 4, range 1-5) during a 2-year period of observation permitting an examination of intra-individual variation in cytology and HPV by LMP. Although uncommon, unsatisfactory cytology specimens were most likely on days 0-10. For satisfactory specimens, the frequency with which cytologic categories were reported varied by time since LMP, although differences were modest and did not affect the chance of abnormal cytology or its severity among women diagnosed with CIN2+. The frequency of positive HC2 tests did not vary with date of LMP. Among HPV infected women, independent of eventual diagnosis and the number of viral genotypes present, mid-cycle specimens yielded the highest frequency of LSIL cytologic interpretations and the highest HPV load; however, the magnitude of these effects were small. Intraindividual correlations of cytology or HPV by LMP were generally weak. We conclude that mid-cycle specimens yield slightly higher HPV DNA loads and slightly increased LSIL interpretations, but the clinical impact is marginal. Standardizing collection times would slightly improve interpretation of trends in HPV load. Finally, these data are consistent with the view that the biological properties of the HPV-infected cervix vary with the date of the LMP.


Assuntos
Carcinoma in Situ/patologia , Carcinoma in Situ/virologia , Colo do Útero/virologia , Ciclo Menstrual/fisiologia , Papillomaviridae/isolamento & purificação , Papillomaviridae/ultraestrutura , Neoplasias do Colo do Útero/patologia , Neoplasias do Colo do Útero/virologia , Feminino , Seguimentos , Humanos , Programas de Rastreamento , Esfregaço Vaginal
12.
J Med Genet ; 43(1): 48-53, 2006 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-15923273

RESUMO

BACKGROUND: Skewed X chromosome inactivation may be more common in women with epithelial ovarian cancer and early-onset breast cancer. We tested this hypothesis in a group of 235 breast cancer patients and 253 controls (mean age 45.8 years) from a larger population based case control study. METHODS: We measured X chromosome inactivation with the AR gene assay in lymphocyte DNA digested with the methylation specific enzyme HpaII. We judged skewness using an adjusted measure (relative to the undigested sample) with a cut point of 75%, and an unadjusted measure where skewed was defined as > 90% of the signal from one allele in the HpaII digested sample. RESULTS: There were no significant differences in any of the skewing measures between cases and controls. Using the adjusted skewing measure among pre-menopausal subjects under the age of 50, 14% of cases versus 11% of controls were skewed, OR = 1.2, 95% CI 0.6 to 2.3; using the unadjusted measure, OR = 0.9, 95% CI 0.4 to 2.0. CONCLUSIONS: While we cannot rule out a subtle difference of approximately twofold or less, we have failed to find a significant difference in the prevalence of skewed X chromosome inactivation in younger women with breast cancer compared to controls.


Assuntos
Neoplasias da Mama/epidemiologia , Neoplasias da Mama/genética , Inativação do Cromossomo X/genética , Adulto , Idade de Início , Idoso , Estudos de Casos e Controles , Feminino , Predisposição Genética para Doença , Humanos , Pessoa de Meia-Idade
13.
Tissue Antigens ; 66(4): 321-4, 2005 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-16185329

RESUMO

Human leukocyte antigen (HLA) variations may affect immune response to human papillomavirus infection and subsequent cervical neoplasia risk. We investigated the frequency and relationship between HLA-A-B and HLA-A-B-DR haplotypes among women with cervical cancer/high-grade lesions (n=365) and cytologically normal population controls (n=681) within three cervical neoplasia studies in the US and Costa Rica. Notable differences in haplotype frequencies were observed; the HLA-A*01-B*08 haplotype occurred in >5% of US Caucasians but in <1% of Costa Ricans. The most prevalent HLA-A*24-B*40-DR*04 haplotype in Costa Rica (5%) was found in <1% of US Caucasians. No HLA haplotype was significantly associated with cervical neoplasia, suggesting that individual allele associations reported to date (e.g. HLA-DR*13) are not likely explained by underlying haplotypes.


Assuntos
Antígenos HLA/genética , Haplótipos/genética , Displasia do Colo do Útero/genética , Neoplasias do Colo do Útero/genética , Costa Rica , Feminino , Predisposição Genética para Doença/genética , Antígenos HLA/imunologia , Haplótipos/imunologia , Humanos , Papillomaviridae/imunologia , Infecções por Papillomavirus/genética , Infecções por Papillomavirus/imunologia , Fatores de Risco , Estados Unidos , Neoplasias do Colo do Útero/imunologia , Neoplasias do Colo do Útero/virologia , Displasia do Colo do Útero/imunologia , Displasia do Colo do Útero/virologia
14.
Br J Cancer ; 91(7): 1269-74, 2004 Oct 04.
Artigo em Inglês | MEDLINE | ID: mdl-15292929

RESUMO

Determinants of human papillomavirus (HPV)-16 serological conversion and persistence were assessed in a population-based cohort of 10 049 women in Guanacaste, Costa Rica. Serologic responses to HPV-16 were measured in 7986 women by VLP-based enzyme-linked immunosorbent assay at both study enrollment (1993/94) and at 5-7 years of follow-up. Seropositive women were defined as >/=5 standard deviations above the mean optical density obtained for studied virgins at enrollment (n=573). Seroconnversion (n=409), persistence (n=675), and clearance (n=541) were defined based on enrollment and follow-up serology measurements. Age-specific distributions revealed that HPV-16 seroconversion was highest among 18- to 24-year-old women, steadily declining with age; HPV-16 seropersistence was lowest in women 65+ years. In age-adjusted multivariate logistic regression models, a 10-fold risk increase for HPV-16 seroconversion was associated with HPV-16 DNA detection at enrollment and follow-up; two-fold risk of seroconversion to HPV-16 was associated with increased numbers of lifetime and recent sexual partners and smoking status. Determinants of HPV-16 seropersistence included a 1.5-fold risk increase associated with having one sexual partner during follow-up, former oral contraceptive use, and a 3-fold risk increase associated with HPV-16 DNA detection at both enrollment and follow-up. Higher HPV-16 viral load at enrollment was associated with seroconversion, and higher antibody titres at enrollment were associated with seropersistence.


Assuntos
DNA Viral/análise , Modelos Teóricos , Papillomaviridae/patogenicidade , Infecções por Papillomavirus/complicações , Infecções por Papillomavirus/imunologia , Neoplasias do Colo do Útero/virologia , Adolescente , Adulto , Idoso , Anticorpos Antivirais/análise , Estudos de Coortes , Anticoncepcionais Orais , Costa Rica , Ensaio de Imunoadsorção Enzimática , Feminino , Seguimentos , Humanos , Pessoa de Meia-Idade , Fatores de Risco , Testes Sorológicos , Comportamento Sexual
15.
Br J Cancer ; 90(1): 146-52, 2004 Jan 12.
Artigo em Inglês | MEDLINE | ID: mdl-14710222

RESUMO

Both parity and oral contraceptive use are associated with elevated circulating levels of sex hormones, at least transiently, and with increased risk of cervical cancer in human papillomavirus (HPV)-infected women. We directly evaluated whether elevations in the physiologic levels of these hormones predispose to the development of cervical neoplasia. We identified 67 premenopausal and 43 postmenopausal women with cervical intraepithelial neoplasia 2, 3, or cervical cancer (>/=CIN2) diagnosed during enrollment of a population-based cohort of 10 077 women. Four controls, two chosen randomly and two chosen from women testing positive for cancer-associated HPV, were matched to each case on menopausal status, age, days since last menses (pre), or years since menopause (post). Sex hormone-binding globulin, oestradiol, oestrone, oestrone-sulphate, dehydroepiandrosterone sulphate, and progesterone were measured in enrollment plasma. There was no consistent association between the sex hormones and risk of >/=CIN2. Excluding cases with invasive disease had a minimal impact on results. Though this case-control study was based on a well-defined population, it was limited by reliance on a single measure of hormone levels taken at the time of diagnosis. Nonetheless, our results do not support the hypothesis that plasma levels of sex hormones have an important bearing on the risk of cervical neoplasia in HPV-infected women.


Assuntos
Hormônios Esteroides Gonadais/sangue , Displasia do Colo do Útero/etiologia , Neoplasias do Colo do Útero/etiologia , Adolescente , Adulto , Estudos de Casos e Controles , Anticoncepcionais Orais , Feminino , Humanos , Pessoa de Meia-Idade , Papillomaviridae/patogenicidade , Infecções por Papillomavirus/complicações , Paridade , Pós-Menopausa , Pré-Menopausa , Fatores de Risco , Neoplasias do Colo do Útero/virologia , Displasia do Colo do Útero/virologia
16.
Br J Cancer ; 89(7): 1248-54, 2003 Oct 06.
Artigo em Inglês | MEDLINE | ID: mdl-14520455

RESUMO

Human papillomavirus (HPV) seroprevalence and determinants of seropositivity were assessed in a 10049-woman population-based cohort in Guanacaste, Costa Rica. Serologic responses based on VLP-based ELISA were obtained from the plasma collected at study enrollment in 1993/1994 for HPV-16 (n=9949), HPV-18 (n=9928), HPV-31 (n=9932), and HPV-45 (n=3019). Seropositivity was defined as five standard deviations above the mean optical density obtained for studied virgins (n=573). HPV-16, -18, -31, and -45 seroprevalence was 15, 15, 16, and 11%, respectively. Of women DNA-positive for HPV-16, -18, -31, or -45, seropositivity was 45, 34, 51, and 28%, respectively. Peak HPV seroprevalence occurred a decade after DNA prevalence; lifetime number of sexual partners was the key determinant of seropositivity independent of DNA status and age. DNA- and sero-positive women showed the highest risk for concurrent CIN3/cancer, followed by DNA-positive, sero-negative women.


Assuntos
Anticorpos Antivirais/sangue , Papillomaviridae/imunologia , Infecções por Papillomavirus/epidemiologia , Displasia do Colo do Útero/epidemiologia , Neoplasias do Colo do Útero/epidemiologia , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Antígenos Virais/imunologia , Estudos de Coortes , Costa Rica/epidemiologia , DNA Viral/análise , Feminino , Humanos , Pessoa de Meia-Idade , Papillomaviridae/genética , Infecções por Papillomavirus/virologia , Reação em Cadeia da Polimerase , Estudos Soroepidemiológicos , Neoplasias do Colo do Útero/virologia , Displasia do Colo do Útero/virologia
17.
J Infect Dis ; 184(10): 1310-4, 2001 Nov 15.
Artigo em Inglês | MEDLINE | ID: mdl-11679920

RESUMO

To examine human leukocyte antigen (HLA) involvement in the development of all grades of cervical neoplasia, a nested case-control study of 10,077 women in Guanacaste, Costa Rica, was conducted. Participants had invasive cervical cancer, high-grade squamous intraepithelial lesions (HSILs; n=166), or low-grade squamous intraepithelial lesions (LSILs); were positive for human papillomavirus (HPV) with no evidence of cervical neoplasia (n=320); or were HPV negative with no evidence of cervical neoplasia but with a history of high-risk sexual behavior (n=173). Compared with women who were HPV negative, women with HLA-DRB1*1301 were associated with decreased risk for cancer/HSILs (odds ratio [OR], 0.4; 95% confidence interval [CI], 0.2-0.7) and for LSILs/HPV (OR, 0.6; 95% CI, 0.3-0.9). Women with both HLA-B*07 and HLA-DQB1*0302 had an 8.2-fold increased risk for cancer/HSILs (95% CI, 1.8-37.2) and a 5.3-fold increased risk for LSILs/HPV (95% CI, 1.2-23.7). These results support the hypothesis that multiple risk alleles are needed in order to increase risk for cervical neoplasia, but a single protective allele may be sufficient for protection.


Assuntos
Antígenos de Histocompatibilidade Classe II/genética , Antígenos de Histocompatibilidade Classe I/genética , Leucócitos/imunologia , Displasia do Colo do Útero/imunologia , Neoplasias do Colo do Útero/imunologia , Alelos , Estudos de Casos e Controles , Costa Rica/epidemiologia , Feminino , Predisposição Genética para Doença , Antígenos HLA-DQ/genética , Cadeias beta de HLA-DQ , Antígenos HLA-DR/genética , Cadeias HLA-DRB1 , Humanos , Fatores de Risco , Neoplasias do Colo do Útero/epidemiologia , Neoplasias do Colo do Útero/genética , Displasia do Colo do Útero/epidemiologia , Displasia do Colo do Útero/genética
18.
Cancer Epidemiol Biomarkers Prev ; 10(10): 1021-7, 2001 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-11588127

RESUMO

Previous reports of genital conditions, such as nonspecific genital infection/sore or vaginal discharge associated with cervical cancer (L. A. Brinton et al., J. Natl. Cancer Inst. (Bethesda), 79: 23-30, 1987; C. J. Jones et al., Cancer Res., 50: 3657-3662, 1990), suggest a possible link between either genital tract inflammation or changes in bacteria flora consistent with bacterial vaginosis (BV) and cervical cancer. To test whether changes in vaginal bacterial flora or the degree of cervical inflammation are associated with women having a human papillomavirus (HPV) infection or with women infected with oncogenic HPV having high-grade cervical lesions (high-grade squamous intraepithelial lesions or cancer), we conducted a case-control study of women <50 years old enrolled in the Costa Rican natural history study of HPV and cervical neoplasia. To test whether BV and inflammation were associated with HPV DNA positivity, Analysis 1 was restricted to women with no or mild (low-grade or equivocal) cytological abnormalities, and the degree of inflammation and Nugent score (a measure of BV) were compared between women infected (n = 220) and not infected (n = 130) with HPV. To test whether BV and inflammation were associated with high-grade lesions, Analysis 2 was restricted to women infected with oncogenic HPV, and the degree of inflammation and Nugent score were compared between women with (n = 95) and without (n = 158) high-grade cervical lesions. In Analysis 1, BV and cervical inflammation were not associated with HPV infection. In Analysis 2, BV was not associated with high-grade lesions. However, we found a marginally significant positive trend of increasing cervical inflammation associated with high-grade lesions in oncogenic HPV-infected women, (P(trend) = 0.05). Overt cervicitis was associated with a 1.9-fold increase in risk of high-grade lesions (95% confidence interval, 0.90-4.1). The results of this study suggest that cervical inflammation may be associated with high-grade lesions and may be a cofactor for high-grade cervical lesions in women infected with oncogenic HPV.


Assuntos
Infecções por Papillomavirus/epidemiologia , Infecções Tumorais por Vírus/epidemiologia , Neoplasias do Colo do Útero/epidemiologia , Neoplasias do Colo do Útero/patologia , Cervicite Uterina/epidemiologia , Adulto , Distribuição por Idade , Estudos de Casos e Controles , Estudos de Coortes , Comorbidade , Intervalos de Confiança , Sondas de DNA de HPV/análise , Feminino , Humanos , Incidência , Pessoa de Meia-Idade , Razão de Chances , Infecções por Papillomavirus/diagnóstico , Probabilidade , Valores de Referência , Medição de Risco , Estudos de Amostragem , Índice de Gravidade de Doença , Infecções Tumorais por Vírus/diagnóstico , Cervicite Uterina/diagnóstico
19.
Am J Clin Pathol ; 116(3): 386-94, 2001 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-11554167

RESUMO

Cytologic detection of high-grade squamous intraepithelial lesions (HSILs) is critical to cervical cancer prevention. Therefore, identifying "equivocal HSIL" (ASCUS [atypical squamous cells of undetermined significance]-H) may be useful. Accordingly, we compared findings associated with "equivocal low-grade SIL" (ASCUS-L), ASCUS-H, and HSIL using data from the ASCUS LSIL (low-grade squamous intraepithelial lesion) Triage Study. The frequency of oncogenic human papillomavirus (HPV) DNA detection and underlying lesions cervical intraepithelial neoplasia (CIN) 2 or worse or CIN 3 or worse in women with ASCUS-H was intermediate between that of ASCUS-L and HSIL. Oncogenic HPV DNA was associated with 85.6% of ASCUS-H ThinPreps and 69.8% of ASCUS-H smears. Histopathologic lesions CIN 2 or worse were associated with 40.5% of ASCUS-H ThinPreps and 27.2% of ASCUS-H smears (mostly CIN 3). Nevertheless, numerically more lesions CIN 2 or worse were preceded by ASCUS-L than by ASCUS-H because ASCUS-L was more common. ASCUS-H is an uncommon interpretation that derives clinical usefulness from its high positive predictive value for lesions CIN 2 or worse.


Assuntos
Triagem , Displasia do Colo do Útero/diagnóstico , Neoplasias do Colo do Útero/diagnóstico , Técnicas de Laboratório Clínico , DNA Viral/análise , Feminino , Humanos , Papillomaviridae/genética , Papillomaviridae/isolamento & purificação , Infecções por Papillomavirus/complicações , Infecções por Papillomavirus/diagnóstico , Valor Preditivo dos Testes , Distribuição Aleatória , Fatores de Risco , Infecções Tumorais por Vírus/complicações , Infecções Tumorais por Vírus/diagnóstico , Displasia do Colo do Útero/virologia , Displasia do Colo do Útero/classificação , Neoplasias do Colo do Útero/virologia , Esfregaço Vaginal/classificação , Esfregaço Vaginal/métodos
20.
Psychiatr Serv ; 52(8): 1057-61, 2001 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-11474051

RESUMO

OBJECTIVE: This study sought to assess the effectiveness of a firearms risk management program. METHODS: A firearms risk management program, which included multidisciplinary assessment, treatment, and discharge planning, was developed and implemented among 46 civilly committed psychiatric inpatients at the Twin Valley Psychiatric System, a behavioral health organization of the Ohio Department of Mental Health. RESULTS: The research sample comprised mainly men who had personality disorders and histories of substance abuse and who had expressed an intent to use a firearm to commit suicide. On discharge, none of the patients had access to a firearm. Of the 16 patients who were hospitalized during the next 24 months, only five were noted to have threatened to harm themselves or others with a firearm or to have access to a firearm. CONCLUSIONS: Multidisciplinary and focused assessment, treatment, and discharge planning can be effective in neutralizing the risk of firearms use among psychiatric patients.


Assuntos
Armas de Fogo/estatística & dados numéricos , Transtornos Mentais/reabilitação , Serviços de Saúde Mental/organização & administração , Adolescente , Adulto , Idoso , Terapia Comportamental , Feminino , Humanos , Masculino , Serviços de Saúde Mental/normas , Pessoa de Meia-Idade , Equipe de Assistência ao Paciente , Gestão de Riscos
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