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1.
J Clin Oncol ; 42(11): 1301-1310, 2024 Apr 10.
Artigo em Inglês | MEDLINE | ID: mdl-38215359

RESUMO

PURPOSE: Cancer antigen-125 (CA-125) is recommended by treatment guidelines and widely used to diagnose ovarian cancer recurrence. The value of CA-125 as a surrogate for disease progression (PD) and its concordance with radiologic progression are unclear, particularly for women with platinum-sensitive relapsed ovarian cancer (PSROC) who have responded to chemotherapy and treated with maintenance poly(ADP-ribose) polymerase inhibitor (PARPi). METHODS: In this pooled analysis of four randomized trials of maintenance PARPi or placebo (Study 19, SOLO2, ARIEL3, and NOVA), we extracted data on CA-125 PD as defined by Gynecologic Cancer InterGroup criteria and RECIST v1.1. We evaluated the concordance between CA-125 and RECIST PD and reported on the negative predictive value (NPV) and positive predictive value (PPV). RESULTS: Of 1,262 participants (n = 818 PARPi, n = 444 placebo), 403 (32%) had CA-125 PD, and of these, 366 had concordant RECIST PD (PPV, 91% [95% CI, 88 to 93]). However, of 859 (68%) without CA-125 PD, 382 also did not have RECIST PD (NPV, 44% [95% CI, 41 to 48]). Within the treatment arms, PPV remained high (PARPi, 91% [95% CI, 86 to 94]; placebo, 91% [95% CI, 86 to 95]) but NPV was lower on placebo (PARPi, 53% [95% CI, 49 to 57]; placebo, 25% [95% CI, 20 to 31]). Of 477 with RECIST-only PD, most (95%) had a normal CA-125 at the start of maintenance therapy and the majority (n = 304, 64%) had CA-125 that remained within normal range. Solid organ recurrence without peritoneal disease was more common in those with RECIST-only PD than in those with CA-125 and RECIST PD (36% v 24%; P < .001). CONCLUSION: In patients with PSROC treated with maintenance PARPi, almost half with RECIST PD did not have CA-125 PD, challenging current guidelines. Periodic computed tomography imaging should be considered as part of surveillance, particularly in those with a normal CA-125 at the start of maintenance therapy and on treatment.


Assuntos
Antineoplásicos , Neoplasias Ovarianas , Humanos , Feminino , Inibidores de Poli(ADP-Ribose) Polimerases/uso terapêutico , Antígeno Ca-125/uso terapêutico , Critérios de Avaliação de Resposta em Tumores Sólidos , Recidiva Local de Neoplasia/tratamento farmacológico , Antineoplásicos/uso terapêutico , Neoplasias Ovarianas/diagnóstico por imagem , Neoplasias Ovarianas/tratamento farmacológico , Carcinoma Epitelial do Ovário/tratamento farmacológico
2.
Gynecol Oncol ; 156(1): 45-53, 2020 01.
Artigo em Inglês | MEDLINE | ID: mdl-31836184

RESUMO

BACKGROUND: Potentially platinum sensitive recurrent ovarian cancer (PPS ROC) is defined by a platinum-free interval of >6 months, and usually treated with platinum-based chemotherapy with variable response and benefit in women who have had 3 or more lines of chemotherapy(≥3). We identified baseline characteristics (health-related quality of life[HRQL] and clinicopathological factors), associated with PFS, OS and early progression (within 8 weeks). The goal is to improve patient selection for chemotherapy based on a nomogram predicting PFS. METHODS: HRQL was assessed with EORTC QLQ-C30/QLQ-OV28. Associations with PFS and OS were assessed with Cox proportional hazards regression. Variables significant in univariable analysis were included in multivariable analyses using backward elimination to select those significant. Associations with stopping chemotherapy early were assessed with logistic regression. RESULTS: 378 women were enrolled, with median(m)OS and PFS of 16.6 months and 5.3 months, respectively. The majority had ECOGPS 0-1. Chemotherapy was stopped early in 45/378 participants (12%); with mOS 3.4 months (95% CI: 1.7-7.2). Physical function(PF), role function(RF), cognitive function(CF), social function(SF), Global Health Status(GHS) and abdominal/GI symptoms(AGIS) were significant univariable predictors of PFS(p < 0.030). SF remained significant after adjusting for clinicopathological factors; p = 0.03. PF, RF, CF, SF, GHS and AGIS were significant univariable predictors of OS (p < 0.007); PF, RF, SF and GHS remained significant predictors of OS in multivariable models; p < 0.007. Poor baseline PF and GHS were significant univariable predictors of stopping chemotherapy early (p < 0.007) but neither remained significant after adjusting for clinicopathological factors. CONCLUSION: Baseline HRQL is simple to measure, is predictive of PFS and OS and when used in conjunction with clinicopathological prognostic factors, can assist with clinical decision making and treatment recommendations for women with PPSROC≥3.


Assuntos
Recidiva Local de Neoplasia/tratamento farmacológico , Neoplasias Ovarianas/tratamento farmacológico , Adulto , Idoso , Estudos de Coortes , Feminino , Humanos , Pessoa de Meia-Idade , Recidiva Local de Neoplasia/sangue , Compostos Organoplatínicos/administração & dosagem , Neoplasias Ovarianas/sangue , Prognóstico , Intervalo Livre de Progressão , Modelos de Riscos Proporcionais , Estudos Prospectivos , Qualidade de Vida , Taxa de Sobrevida
3.
Fam Cancer ; 16(4): 461-469, 2017 10.
Artigo em Inglês | MEDLINE | ID: mdl-28285341

RESUMO

OBJECTIVES: The quality of risk-reducing salpingo-oophorectomy (RRSO) performed in Australasian women was previously reported to be suboptimal. Here we describe the quality of RRSO performed since 2008 in women enrolled in the same cohort and determine whether it has improved. DESIGN: Prospective cohort study of women at high risk of pelvic serous cancer (PSC) in kConFab. Eligible women had RRSO between 2008 and 2014 and their RRSO surgical and pathology reports were reviewed. "Adequate" surgery and pathology were defined as complete removal and paraffin embedding of all ovarian and extra-uterine fallopian tube tissue, respectively. Associations between clinical factors and "adequate" pathology were assessed using logistic regression. Data were compared with published cohort data on RRSO performed prior to 2008 using Chi square test. RESULTS: Of 164 contemporary RRSOs performed in 78 centres, 158/159 (99%) had "adequate" surgery and 108/164 (66%) had "adequate" pathology. Surgery performed by a gynaecologic oncologist rather than a general gynaecologist [OR 8.2, 95%CI (3.6-20.4), p < 0.001], surgery without concurrent hysterectomy [OR 2.5, 95%CI (1.1-6.0), p = 0.03], more recent year of surgery [OR 1.4, 95%CI (1.1-1.8), p = 0.02], and clinical notation that indicated high risk [OR 19.4, 95%CI (3.1-385), p = 0.008] were independently associated with "adequate" pathology. Both surgery and pathology were significantly more likely to be "adequate" (p < 0.001) in this contemporary sample. CONCLUSION: The quality of RRSOs has significantly improved since our last report. Surgery by a gynaecologic oncologist who informs the pathologist that the woman is at high risk for PSC is associated with optimal RRSO pathology.


Assuntos
Cistadenocarcinoma Seroso/cirurgia , Neoplasias das Tubas Uterinas/cirurgia , Neoplasias Ovarianas/cirurgia , Salpingo-Ooforectomia/métodos , Adulto , Idoso , Austrália , Cistadenocarcinoma Seroso/genética , Cistadenocarcinoma Seroso/patologia , Neoplasias das Tubas Uterinas/genética , Neoplasias das Tubas Uterinas/patologia , Feminino , Genes BRCA1 , Genes BRCA2 , Heterozigoto , Humanos , Pessoa de Meia-Idade , Nova Zelândia , Oncologistas , Neoplasias Ovarianas/genética , Neoplasias Ovarianas/patologia , Procedimentos Cirúrgicos Profiláticos , Estudos Prospectivos , Qualidade da Assistência à Saúde , Fatores de Risco
4.
Ann Oncol ; 24 Suppl 10: x64-x68, 2013 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-24265408

RESUMO

There is general acceptance of the importance of incorporating patient-reported outcome (PRO) measures including health-related quality of life (HRQOL) into clinical trials, and there are now a number of guidance documents available on how to use PRO's for regulatory authorities and in comparative effectiveness research. The methods used to collect, analyse and report PRO data in clinical trials have received considerable scrutiny, revealing many shortcomings in the standard of reporting of HRQOL in clinical trials as well as in how PRO's have been selected and analysed in clinical trials. This has led to the recent Consolidated Standards of Reporting Clinical Trials-PRO extension statement which lays down a framework for selection and reporting analysis of PROs, either as primary or secondary trial end points, thus ensuring scientific rigour. Adherence to these guidelines can only improve the conduct of clinical trials and interpretation of their results, which may help avoid missing out on opportunities as in the past. We review pertinent literature on PRO measures and discuss how various recent PRO guidance documents should be applied to ovarian cancer clinical trials.


Assuntos
Neoplasias Ovarianas/epidemiologia , Neoplasias Ovarianas/terapia , Qualidade de Vida , Resultado do Tratamento , Ensaios Clínicos como Assunto , Feminino , Humanos , Neoplasias Ovarianas/patologia
5.
Breast Cancer Res Treat ; 130(3): 1057-61, 2011 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-21850394

RESUMO

Published studies have reached contradictory conclusions regarding breast cancer risk for women from families segregating a BRCA1 or BRCA2 mutation who do not carry the family-specific mutation. Accurate estimation of breast cancer risk is crucial for appropriate counselling regarding risk management. The aim of this study is to prospectively assess whether breast cancer risk for mutation negative women from families segregating BRCA1 or BRCA2 mutations is greater than for women in the general population. Eligible women were 722 first-, second- and third-degree relatives of a BRCA1 or BRCA2 mutation carrier from 224 mutation positive (128 BRCA1, 96 BRCA2) families, had no personal cancer history at baseline, and had been tested and found not to carry the family-specific mutation. Self-reported family history of cancer, preventive interventions and verified cancer diagnoses were collected at baseline, and every 3 years thereafter. Median follow-up was 6.1 years (range 0.1-12.4 years). Time at risk of breast cancer was censored at cancer diagnosis or risk-reducing surgery. Standardised incidence ratios (SIR) were estimated by comparing observed to population incidences of invasive breast cancer using Australian Cancer Incidence and Mortality Books. Six cases of invasive breast cancer were observed. The estimated SIRs were 1.14 (95% CI: 0.51-2.53) overall (n = 722), 1.29 (95% CI: 0.58-2.88) when restricted to first- and second-degree relatives of an affected mutation carrier (n = 442) and 0.48 (95% CI: 0.12-1.93) when restricted to those with no family history of breast cancer in the non-mutation carrying parental lineage (n = 424). There was no evidence that mutation negative women from families segregating BRCA1 or BRCA2 mutations are at increased risk of breast cancer. Despite this being the largest prospective cohort to assess this issue, moderately increased breast cancer risk (2-fold) cannot be ruled out.


Assuntos
Neoplasias da Mama/genética , Genes BRCA1 , Genes BRCA2 , Mutação , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Neoplasias da Mama/epidemiologia , Feminino , Predisposição Genética para Doença , Humanos , Incidência , Pessoa de Meia-Idade , Estudos Prospectivos , Medição de Risco , Adulto Jovem
6.
Fam Cancer ; 10(3): 505-14, 2011 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-21424757

RESUMO

The aim of this study was to describe the type of risk-reducing gynaecologic surgery (RRGS) and the extent of pathological evaluation being undertaken for Australasian women at high familial risk of pelvic serous cancer. Surgical and pathology reports were reviewed for women with BRCA1/BRCA2 mutations, or a family history of breast and ovarian cancer, who underwent RRGS between 1998 and 2008. "Adequate" surgery was defined as complete removal of all ovarian and extra-uterine fallopian tube tissue. "Adequate" pathology was defined as paraffin embedding of all removed ovarian and tubal tissue. Predictors of adequacy were assessed using logistic regression. There were 201 women, including 173 mutation carriers, who underwent RRGS. Of these, 91% had adequate surgery and 23% had adequate pathology. Independent predictors of adequate surgery were surgeon type (OR = 20; 95% CI 2-167; P = 0.005 for gynaecologic oncologists versus general gynaecologists), more recent surgery (OR = 1.33/year; 95% CI 1.07-1.67; P = 0.012) and younger patient age (OR = 0.93/year of age; 95% CI 0.87-0.99; P = 0.028). Independent predictors of adequate pathology were more recent surgery (OR = 1.26/year; 95% CI 1.06-1.49; P = 0.008) and surgeon type (OR = 3.1; 95% CI 1.4-6.7; P = 0.004 for gynaecologic oncologists versus general gynaecologists). Four serous ovarian cancers and one endometrioid endometrial cancer were detected during surgery or pathological examination. In conclusion Australasian women attending a specialist gynaecologic oncologist for RRGS are most likely to have adequate surgery and pathological examination. Additional education of clinicians and consumers is needed to ensure optimal surgery and pathology in these women.


Assuntos
Proteína BRCA1/genética , Proteína BRCA2/genética , Neoplasias da Mama/cirurgia , Cistadenocarcinoma Seroso/cirurgia , Mutação/genética , Neoplasias Ovarianas/cirurgia , Neoplasias Pélvicas/cirurgia , Adulto , Austrália , Neoplasias da Mama/genética , Neoplasias da Mama/patologia , Cistadenocarcinoma Seroso/genética , Cistadenocarcinoma Seroso/patologia , Feminino , Predisposição Genética para Doença , Procedimentos Cirúrgicos em Ginecologia , Heterozigoto , Humanos , Pessoa de Meia-Idade , Razão de Chances , Neoplasias Ovarianas/genética , Neoplasias Ovarianas/patologia , Neoplasias Pélvicas/genética , Neoplasias Pélvicas/patologia , Fatores de Risco
7.
Eur J Cancer ; 45(4): 551-60, 2009 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-18996690

RESUMO

BACKGROUND: Few data exist regarding the use of complementary and alternative medicine (CAM) by unaffected women at high risk of breast cancer. METHODS: Self-reported CAM use by women from multiple-case breast cancer families was obtained by questionnaire. Factors associated with CAM use were assessed using multiple logistic regression. RESULTS: Of 892 women, 55% (n=489) used CAM, 6% (n=53) specifically to prevent cancer. CAM use was independently associated with tertiary education level (OR 2.56, 95% CI 1.83-3.58, p<0.001), greater physical activity (OR 1.05 per hour of physical activity/week, 95% CI 1.00-1.10, p=0.049), greater anxiety (OR 1.92, 95% CI 1.16-3.16, p=0.01), not currently smoking (OR 0.64, 95% CI 0.42-0.97, p=0.037) and lower perceived BC risk (OR 0.82 per 20 percentage points, 95% CI 0.72-0.94, p=0.005). CONCLUSIONS: The majority of high-risk women use CAM, but mostly for reasons other than cancer prevention. Most predictors of CAM use are consistent with the limited literature for women at high risk for cancer.


Assuntos
Neoplasias da Mama/prevenção & controle , Terapias Complementares/estatística & dados numéricos , Síndromes Neoplásicas Hereditárias/prevenção & controle , Adulto , Idoso , Idoso de 80 Anos ou mais , Ansiedade/psicologia , Proteínas Reguladoras de Apoptose , Atitude Frente a Saúde , Austrália , Proteína BRCA2/genética , Neoplasias da Mama/genética , Neoplasias da Mama/psicologia , Terapias Complementares/psicologia , Escolaridade , Feminino , Seguimentos , Predisposição Genética para Doença , Humanos , Pessoa de Meia-Idade , Atividade Motora , Mutação , Nova Zelândia , Ubiquitina-Proteína Ligases/genética , Adulto Jovem
8.
Clin Genet ; 70(3): 198-206, 2006 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-16922722

RESUMO

This study prospectively evaluated the utilization of cancer risk management strategies in a multi-institutional cohort of BRCA1 and BRCA2 mutation carriers using a self-report questionnaire. Of 142 unaffected female mutation carriers, 70 (49%) had elected to receive their mutation result. Of those who knew their mutation result, 11% underwent bilateral mastectomy (BM), 29% had bilateral oophorectomy (BO), 78% performed regular breast self-examination (BSE), and 80%, 89%, 67%, and 0% had at least annual clinical breast examination (CBE), mammography, transvaginal ultrasound (TVU), and CA125, respectively. A further 20%, 7%, 0%, 21%, and 75%, respectively, reported never having had these tests. For women who elected not to receive their mutation result, 0% underwent BM, 6% underwent BO, and 77%, 42%, 56%, 7%, and 0% had regular BSE, CBE, mammography, TVU, and CA125, respectively. Only one woman used chemoprevention outside a clinical trial. Uptake of prophylactic surgery and screening was associated with knowing one's mutation status (for all behaviors except BSE), age (for BO and CBE) and residence (for mammography). In this cohort, the minority of mutation carriers utilized risk-reducing surgery or chemoprevention and a substantial minority were not undergoing regular cancer-screening tests.


Assuntos
Neoplasias da Mama/prevenção & controle , Genes BRCA1 , Genes BRCA2 , Triagem de Portadores Genéticos , Predisposição Genética para Doença , Adulto , Idoso , Neoplasias da Mama/genética , Quimioprevenção , Estudos de Coortes , Feminino , Testes Genéticos , Heterozigoto , Humanos , Mamografia , Mastectomia , Pessoa de Meia-Idade , Mutação , Ovariectomia , Estudos Prospectivos , Risco
9.
Gynecol Oncol ; 100(2): 233-8, 2006 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-16321429

RESUMO

UNLABELLED: Small cell carcinoma of the ovary, hypercalcemic type (SCCOHT) is a rare tumor typically affecting young women. It is an aggressive malignancy with a poor prognosis and few long-term survivors. OBJECTIVE: Investigate the outcome of patients with SCCOHT. METHOD: Data were collected for patients with SCCOHT treated in Australia, Canada and Europe. Information included stage, surgery, chemotherapy, radiotherapy, recurrence and survival. RESULTS: The median follow-up is 13 months for all patients and 35.5 months in surviving patients. Ten patients had FIGO stage I tumors, six stage III tumors and one stage unknown. All underwent surgical resection. Adjuvant platinum-based chemotherapy was given to all patients. Seven received adjuvant radiotherapy with either pelvic and para-aortic radiotherapy, average dose 46.5 Gy (40 Gy/25# - 50.4 Gy/23#), or pelvic and whole abdominal radiotherapy, average dose 45 Gy to pelvis and 25 Gy (22.5 Gy/22# - 30 Gy/25#) to abdomen. The median survival for stage I tumors was not reached and was 6 months for stage III tumors. For the ten patients with stage I tumors: six received adjuvant radiotherapy with five alive and disease-free; four received no adjuvant radiotherapy with one alive and disease-free, while three have relapsed with one alive and disease-free after resection. Of the seven patients with stage III or unknown stage tumors, all but one have died. Recurrences were most frequent in the pelvis and the abdomen. Patients receiving salvage treatment with chemotherapy and radiotherapy did poorly. CONCLUSION: We advocate a multi-modality treatment approach including surgery, chemotherapy with the addition of radiotherapy either sequentially or concurrently.


Assuntos
Carcinoma de Células Pequenas/terapia , Hipercalcemia/patologia , Neoplasias Ovarianas/classificação , Neoplasias Ovarianas/terapia , Adulto , Idoso , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Carcinoma de Células Pequenas/sangue , Carcinoma de Células Pequenas/classificação , Carcinoma de Células Pequenas/patologia , Quimioterapia Adjuvante , Feminino , Humanos , Histerectomia , Pessoa de Meia-Idade , Estadiamento de Neoplasias , Neoplasias Ovarianas/sangue , Neoplasias Ovarianas/patologia , Ovariectomia , Radioterapia Adjuvante , Resultado do Tratamento
10.
J Clin Oncol ; 23(22): 5155-65, 2005 Aug 01.
Artigo em Inglês | MEDLINE | ID: mdl-16051957

RESUMO

PURPOSE: The use of chemotherapy and endocrine therapies in the treatment of premenopausal women carries with it reproductive and gynecologic implications that young women may find distressing and discordant with plans for childbearing. This multicenter study aimed to investigate fertility- and menopause-related information needs among young women with a diagnosis of early-stage breast cancer. PATIENTS AND METHODS: Two hundred twenty-eight women with a diagnosis of early-stage breast cancer who were aged 40 years or younger at diagnosis and who were 6 to 60 months after diagnosis were entered onto the trial. Participants completed a mailed self-report questionnaire that included a purposely designed fertility- and menopause-related information needs survey and standardized measures of distress, anxiety, quality of life, menopausal symptoms, and information-seeking style. RESULTS: Seventy-one percent of participants discussed fertility-related issues with a health professional as part of their breast cancer treatment, and 86% discussed menopause-related issues. Consultation with a fertility or menopause specialist was the most preferred method of obtaining this information. Receiving fertility-related information was rated as being significantly more important than receiving menopause-related information at time of diagnosis (P < .001) and at treatment decision making (P = .058). Receiving menopause-related information was rated as being significantly more important than receiving fertility-related information during adjuvant treatment (P < .05), at completion of adjuvant treatment (P < .001), and during follow-up (P < .001). Common questions, sources of information, and correlates of perceived importance were identified. CONCLUSION: The results of this study suggest that younger women have unmet needs for fertility- and menopause-related information and provide preliminary empirical data to guide the development of better fertility- and menopause-related patient education materials for younger women with a diagnosis of early breast cancer.


Assuntos
Neoplasias da Mama/complicações , Neoplasias da Mama/terapia , Fertilidade , Menopausa , Avaliação das Necessidades , Adulto , Idade de Início , Neoplasias da Mama/psicologia , Feminino , Pesquisas sobre Atenção à Saúde , Humanos , Estadiamento de Neoplasias , Educação de Pacientes como Assunto , Qualidade de Vida , Estresse Psicológico
11.
Cancer Genet Cytogenet ; 129(1): 23-9, 2001 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-11520561

RESUMO

Progressive genetic changes such as the inactivation of tumor suppressor genes (TSG) are thought to play an important role in the initiation and progression of ovarian cancer. Frequent nonrandom allelic imbalance (AI) at 8p11-p21 and 8p22-pter suggests the existence of TSGs that may be involved in the carcinogenesis of several human malignancies. We investigated 70 ovarian tumors with 11 highly polymorphic markers spanning 8p12-p21 and 8p22-pter to produce an AI map of 8p in epithelial ovarian cancer. Allelic imbalance was demonstrated in 54 tumors (77%), most frequently occurring at D8S136 (54%) and at D8S1992 (55%). Poorly differentiated and advanced stage cancers were more often affected by AI (G1+G2 vs. G3; 20% vs. 66%; stage I+II vs. III+IV, 36% vs. 54%, P<.001; Kruskal-Wallis test) than well differentiated and early stage tumors. There was no relationship between histological subtype and AI. Smallest regions of overlap (SRO) were delineated by analyzing 38 tumors with partial AI. This study provides compelling evidence for the involvement of TSGs on the short arm of chromosome 8, at 8p12-p21 and at 8p23 in the development and progression of epithelial ovarian cancer.


Assuntos
Desequilíbrio Alélico , Cromossomos Humanos Par 8 , Genes Supressores de Tumor , Neoplasias Ovarianas/genética , Feminino , Humanos , Perda de Heterozigosidade , Neoplasias Ovarianas/patologia
12.
Lancet ; 357(9270): 1767-8, 2001 Jun 02.
Artigo em Inglês | MEDLINE | ID: mdl-11403819

RESUMO

Cancer cells that have DNA mismatch repair deficiency are resistant to many cytotoxic drugs. Calcium channel blockers may inhibit the pathways that cause such resistance. We report a patient with hereditary non-polyposis coli and metastatic colon cancer who had a complete response after treatment with a high dose of nifedipine, a calcium channel blocker. Our findings suggest that drugs that interfere with signal transduction could have a clinical role and deserve further study in selected patients.


Assuntos
Adenocarcinoma/tratamento farmacológico , Adenocarcinoma/secundário , Polipose Adenomatosa do Colo/tratamento farmacológico , Bloqueadores dos Canais de Cálcio/uso terapêutico , Neoplasias do Colo/tratamento farmacológico , Neoplasias do Colo/secundário , Reparo do DNA/genética , Nifedipino/uso terapêutico , Neoplasias Gástricas/patologia , Adenocarcinoma/patologia , Neoplasias do Colo/patologia , Reparo do DNA/efeitos dos fármacos , Feminino , Humanos , Pessoa de Meia-Idade , Células Tumorais Cultivadas/efeitos dos fármacos
13.
Gynecol Oncol ; 79(1): 38-43, 2000 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-11006028

RESUMO

OBJECTIVES: Widespread replication-type error (RER) is a genetic alteration that has been observed in many different neoplasms and has been associated with defective DNA repair activity. There are conflicting data regarding the role that this type of genetic instability plays in the development and progression of adult germ cell tumors. METHODS: Universal amplification was performed on 104 paired specimens of tumor and constitutional DNA isolated from adult male and female germ cell tumors, in addition to subpopulations of carcinoma in situ (CIS), the precursor of testicular germ cell tumors (TGCTs). Preamplified DNA samples of TGCTs and ovarian germ cell tumors (OGCTs) were assayed for the presence of RER at 78 and 64 microsatellite loci, respectively. RESULTS: RER was observed at a single microsatellite locus in 7 of 24 individual testicular germ cell tumors, including subpopulations of CIS isolated from one of these patients. There was some evidence of RER clustering for microsatellite loci mapping to the short arm of chromosome 12. Genetic instability was more frequent in OGCTs, with widespread RER observed at 38 of 64 microsatellite loci. These alterations were noted in 12 of 36 malignant OGCTs showing RER at 1 or more loci, including 3 OGCTs demonstrating RER at more than 6 separate microsatellite loci. CONCLUSIONS: The pathogenetic significance of genetic instability in germ cell tumors remains uncertain, although the results of this study suggest a lesser role in TGCTs compared to that in OGCTs.


Assuntos
Germinoma/genética , Repetições de Microssatélites/genética , Neoplasias Ovarianas/genética , Neoplasias Testiculares/genética , Adolescente , Adulto , Alelos , Carcinoma in Situ/genética , Reparo do DNA , Replicação do DNA/genética , DNA de Neoplasias/biossíntese , DNA de Neoplasias/genética , Feminino , Humanos , Masculino , Reação em Cadeia da Polimerase
14.
Br J Cancer ; 83(6): 729-36, 2000 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-10952776

RESUMO

Testicular germ cell tumours (TGCTs) may arise through a process of multi-step carcinogenesis, and loss of heterozygosity (LOH) at specific loci is likely to be an important early event, although this has not been studied in detail. In order to explore the pathogenetic relationships among TGCTs, we investigated the genetic changes in testicular tumours that exhibit a disease continuum through the precursor carcinoma in situ (CIS) to either seminoma (SE) and/or non-seminomatous germ cell tumour (NSGCT). Universal amplification has been performed on 87 TGCT specimens and 36 samples of CIS cells microdissected from single paraffin-embedded tumour sections from 40 patients, including multiple specimens of CIS and TGCT cells of varied histology microdissected from 24 individual patients. Seventy-seven microsatellite markers were used to assay these samples for LOH at candidate regions selected from the literature, mapping to 3q, 5q, 9p, 11p, 11q, 12q, 17p and 18q. Construction of deletion maps for each of these regions identified common sites of deletion at 3q27-q28, 5q31, 5q34-q35, 9p22-p21 and 12q22, which correlate with allelic losses we have also observed in the precursor CIS cells. Evidence for allelic loss at 3q27-q28 was observed in all of the embryonal carcinoma samples analysed. We conclude that inactivation of gene(s) within these regions are likely to be early events in the development and progression of TGCTs. These results also provide molecular evidence in support of the hypothesis that SE is an intermediate stage of development within a single neoplastic pathway of progression from CIS precursor cells to NSGCT.


Assuntos
Carcinoma in Situ/genética , Transformação Celular Neoplásica , Perda de Heterozigosidade/genética , Seminoma/genética , Neoplasias Testiculares/genética , Adolescente , Adulto , Progressão da Doença , Regulação Neoplásica da Expressão Gênica , Humanos , Masculino , Repetições de Microssatélites/genética , Neoplasias Testiculares/patologia
15.
Gynecol Oncol ; 77(2): 283-8, 2000 May.
Artigo em Inglês | MEDLINE | ID: mdl-10785479

RESUMO

OBJECTIVE: Relatively little is known about the molecular mechanisms involved in the initiation and progression of ovarian germ cell tumors (OGCTs), in contrast to testicular germ cell tumors (TGCTs) which have been extensively investigated. Ovarian germ cell tumors share many pathological and biological features with TGCTs and it is likely that they share similar molecular genetic alterations, although this has not been studied in detail. The aim of this study was to compare and contrast loss of heterozygosity (LOH) in OGCTs at chromosomal regions that are commonly involved in TGCTs. METHODS: Universal amplification was performed on 35 paired specimens of malignant OGCT and constitutional DNA that had been microdissected from single paraffin-embedded tissue sections in 32 patients. Sixty-two microsatellite markers were used to assess LOH at chromosomal regions mapping to 3q, 5q, 9p, 11p, 11q, 12q, 17p, and 18q as these are commonly involved in testicular germ cell tumors. RESULTS: Assessment of these regions demonstrated common sites of deletion at 3q27-q28 (50%), 5q31 (33%), 5q34-q35 (46%), 9p22-p21 (32%) and 12q22 (53%) in all histological subtypes of OGCT. We and others have previously found these regions to be frequently deleted at early stages of tumor development in TGCTs. CONCLUSIONS: These chromosomal regions may contain tumor suppressor genes that are important in the initiation and progression of both malignant OGCTs and TGCTs.


Assuntos
DNA de Neoplasias/análise , Germinoma/genética , Perda de Heterozigosidade , Repetições de Microssatélites/genética , Neoplasias Ovarianas/genética , Mutação Puntual , Transformação Celular Neoplásica , Análise Mutacional de DNA , Progressão da Doença , Feminino , Genes Supressores de Tumor/genética , Humanos
16.
J Marital Fam Ther ; 25(1): 43-60, 1999 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-9990519

RESUMO

The life story of the internationally adopted child tends to be an emotional one. How the story is told and retold in the family can have lasting consequences for the child's adjustment and well-being. In telling the story, parents are faced with a unique challenge: To what extent is it desirable to encourage their children, who already struggle with identity issues related to adoption, to identify with their cultures of origin? Therapists working on these issues with multiethnic adoptive families can find little guidance in the family systems literature. To fill this gap, the present article reviews the literature on racial/ethnic identity development and the available research on ethnic identification, self-esteem, and the psychological adjustment of cross-ethnically adopted children and adolescents. Implications for practice include developmental considerations, identifying children and families at risk, and recommendations for those in need of intervention.


Assuntos
Adoção/psicologia , Emigração e Imigração , Etnicidade/psicologia , Terapia Familiar , Identificação Psicológica , Aculturação , Adolescente , Criança , Comparação Transcultural , Feminino , Humanos , Masculino , Relações Pais-Filho , Relações Raciais/psicologia , Fatores de Risco
17.
Fam Process ; 37(2): 167-87, 1998.
Artigo em Inglês | MEDLINE | ID: mdl-9693948

RESUMO

Much contemporary family therapy theory and practice takes into account clients' cognitive constructions of their family problems. Recent calls for therapists to elicit and work with clients' causal explanations and narratives parallel accumulating evidence in the social-clinical literature about the predictive importance of attributions in family relationships. In this article, we introduce the Constructions of Problems Scale (CPS), provide preliminary evidence of its reliability and validity, and suggest ways in which it can be used clinically to reveal new areas for questioning and to generate new ideas. The CPS is a brief questionnaire that can be used to create a profile of each individual family member's private constructions. To complete the CPS, each family member writes a free-form narrative of the presenting problem and then rates his or her perceptions of the contributing causes. The CPS profiles can be used to compare the perspectives of different family members and to assess cognitive constructions at different points in treatment. We discuss its potential for these and other clinical uses.


Assuntos
Relações Familiares , Terapia Familiar/métodos , Conhecimentos, Atitudes e Prática em Saúde , Determinação da Personalidade , Adulto , Feminino , Humanos , Relações Interpessoais , Masculino , Relações Pais-Filho , Poder Familiar/psicologia , Reprodutibilidade dos Testes , Fatores Socioeconômicos , Inquéritos e Questionários
18.
J Marital Fam Ther ; 24(3): 289-303, 1998 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-9677537

RESUMO

To study family members' narrative descriptions of their difficulties, we developed an observational coding system, the Cognitive Construction Coding System (CCCS). In this system, 4 dimensions of clients' problem descriptions (intrapersonal-interpersonal) and causal explanations (internal-external, responsible-not responsible, linear-circular) are coded in the context of a Problem Elaboration Episode, a segment of psychotherapy discourse. In Studies 1 and 2 the reliability of the CCCS was assessed using transcripts from family therapy texts and interviews provided by 7 constructivist theorists. Across studies, mean interjudge agreements ranged from 56% to 98%; the mean reliability estimates were, however, more modest and variable (range .46 to .94). In Study 3, trained judges coded videotapes in which volunteers described personal problems that corresponded to specific CCCS codes. Results of this experiment showed that, on every dimension, the coding was more accurate than chance, all ps < 005. In Study 4, the CCCS successfully discriminated 6 of 8 family intake sessions in which the parents' descriptions of the presenting problem either did or did not shift from intrapersonal to interpersonal over the course of the interview. Directions for future research with the coding system are suggested, along with a discussion of its relevance for practice.


Assuntos
Atitude Frente a Saúde , Terapia Familiar/métodos , Família/psicologia , Controle Interno-Externo , Relações Interpessoais , Entrevista Psicológica/métodos , Observação/métodos , Resolução de Problemas , Adolescente , Adulto , Causalidade , Cognição , Análise Discriminante , Feminino , Humanos , Masculino , Variações Dependentes do Observador , Psicometria , Reprodutibilidade dos Testes , Gravação de Videoteipe
19.
Semin Oncol ; 25(3): 305-14, 1998 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-9633842

RESUMO

There is obvious merit in being able to accurately predict outcome and tailor treatment according to individual risk and potential for benefit. Epithelial ovarian cancers are characterized by a broad spectrum of biological behavior ranging from tumors that have an excellent prognosis and high likelihood of cure to those that progress rapidly and have a very poor prognosis. This wide clinical spectrum is partly reflected by a number of clinicopathological prognostic variables which include International Federation of Gynecology and Obstetrics stage, histologic subtype and grade, volume of residual tumor remaining after surgical resection, performance status, and age. There has been increasing interest by many groups to incorporate the independent prognostic variables into multivariate models that could better predict outcome. This approach does appear to allow the identification of different prognostic subsets and requires confirmation in prospective studies. There has been, and there continues to be a lot of effort in identifying new prognostic factors that have a biologic rationale and these will be discussed. Most of these new prognostic factors have not been subjected to rigorous testing and this will be clearly necessary before they find clinical application. This is an area that is rapidly evolving with the increased understanding of the molecular basis for ovarian carcinogenesis and progression coupled with technological advances such as DNA arrays and automated polymerase chain reaction. We are at the threshold of developing a new and more objective as well as rational approach to predict prognosis and response to therapy.


Assuntos
Neoplasias Epiteliais e Glandulares/mortalidade , Neoplasias Epiteliais e Glandulares/patologia , Neoplasias Ovarianas/mortalidade , Neoplasias Ovarianas/patologia , Resistencia a Medicamentos Antineoplásicos , Feminino , Genes Supressores de Tumor , Humanos , Análise Multivariada , Estadiamento de Neoplasias , Neoplasias Epiteliais e Glandulares/classificação , Neoplasias Epiteliais e Glandulares/genética , Neoplasias Ovarianas/genética , Neoplasias Ovarianas/terapia , Prognóstico
20.
Fam Process ; 37(1): 17-33, 1998.
Artigo em Inglês | MEDLINE | ID: mdl-9589279

RESUMO

One important clinical task in family therapy involves transforming the client's construction of the presenting problem from an individual, intrapersonal view to an interpersonal, relational, or systemic one (Sluzki, 1992). To study the transformation process in initial sessions, we sampled 8 families in which the referring parent requested help for a child's problem. The 8 therapists, trained and experienced in Sluzki's (1992) narrative approach, attempted to facilitate a transformation in the parents' initial construction of the problem. In 4 sessions, the transformation was independently judged to be successful by the therapist and observers, while in 4 other sessions the transformation was judged to be unsuccessful. Videotapes of the 8 interviews were analyzed qualitatively, and the parents' verbatim descriptions of the problem were coded using the Cognitive Constructions Coding System (Friedlander, 1995). We compared the successful and the unsuccessful sessions and developed a conceptual model of the successful transformation process that included client performances as well as therapist operations (Greenberg, 1986). While many elements in the model were consistent with Sluzki's (1992) "blue-print" transformation, several new elements were added. Practical implications are described, along with limitations and recommendations for future research.


Assuntos
Atitude Frente a Saúde , Transtornos do Comportamento Infantil/prevenção & controle , Comunicação , Terapia Familiar/métodos , Modelos Psicológicos , Pais/psicologia , Resolução de Problemas , Relações Profissional-Paciente , Adolescente , Adulto , Criança , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Análise e Desempenho de Tarefas , Gravação de Videoteipe
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