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1.
Ann Oncol ; 30(4): 604-611, 2019 04 01.
Artigo em Inglês | MEDLINE | ID: mdl-30798330

RESUMO

BACKGROUND: Little is known regarding sperm production following adjuvant treatment in testicular cancer (TC) clinical stage I (CS I) patients. PATIENTS AND METHODS: A total of 182 TC patients aged 18-50 years were prospectively included during 2001-2006 at any given time within 5 years of orchiectomy. Semen samples were delivered postorchiectomy but before further treatment, 6, 12, 24, 36 and 60 months (T0-T60) after completed therapy. Total sperm number (TSN) and sperm concentration (SC) were used as measurements of testicular function. Four groups according to treatment modality were identified; Radiotherapy; To a total dose of 25.2 Gy to the infradiaphragmal paraaortic and ipsilateral iliac lymph nodes (RT, N = 70), one cycle of adjuvant BEP (bleomycin, etoposide, cisplatin, 5 day regimen) (BEP, N = 62), one cycle of adjuvant carboplatin AUC 7 (Carbo, N = 22), and patients managed by surveillance (SURV, N = 28). RESULTS: In the cross-sectional analysis, a significant but transient drop in mean TSN and mean SC (T0-T60) was seen at T6 after radiotherapy. Apart from a significant increase in mean SC at T12 compared with baseline, no significant differences were observed in the other treatment groups. In 119 patients delivering 3 or more samples, values in TSN and SC were rather stable over time. Azoospermic patients (N = 11) were observed in most treatment groups except for in the BEP group. During follow-up, one azoospermic patient belonging to the Carbo group became normospermic. CONCLUSIONS: No clinically significant long-term effect on TSN or SC associated with adjuvant treatment in TC CSI patients was found. However, as patients may have low sperm counts before orchiectomy as well as after adjuvant treatment, we offer sperm banking before orchiectomy as assisted reproductive measures may be necessary regardless of treatment given.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversos , Quimiorradioterapia Adjuvante/efeitos adversos , Orquiectomia , Contagem de Espermatozoides , Neoplasias Testiculares/terapia , Adolescente , Adulto , Protocolos de Quimioterapia Combinada Antineoplásica/administração & dosagem , Estudos Transversais , Preservação da Fertilidade , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Estadiamento de Neoplasias , Estudos Prospectivos , Bancos de Esperma , Espermatozoides/efeitos dos fármacos , Espermatozoides/efeitos da radiação , Suécia , Neoplasias Testiculares/patologia , Testículo/efeitos dos fármacos , Testículo/patologia , Testículo/efeitos da radiação , Testículo/cirurgia , Resultado do Tratamento , Adulto Jovem
2.
J Sex Med ; 16(7): 1049-1059, 2019 07.
Artigo em Inglês | MEDLINE | ID: mdl-31255211

RESUMO

INTRODUCTION: The survival rates for testicular cancer are excellent; still, there is a lack of knowledge regarding important survivorship issues, such as sexual dysfunction and reproductive concerns. AIM: The aim of this study was to investigate the prevalence and predictors of sexual dysfunction and reproductive concerns and the potential association between these issues in young men ∼2 years after a diagnosis of testicular cancer. METHODS: Data were collected from 111 men (response rate = 50%) diagnosed with testicular cancer at age 16-39. Patients were identified via the Swedish National Quality Registry for Testicular Cancer and approached with a survey, including standardized measures of sexual function, reproductive concerns, body image, and health-related quality of life. The survey was sent to participants approximately 2 years after their cancer diagnosis. Clinical variables were collected from the registry. Predictors were identified by multivariable linear regression analyses. MAIN OUTCOME MEASURES: The main outcomes were sexual function, assessed with the Patient-Reported Outcomes Measurement Information System Sexual Function and Satisfaction measure version 2.0, and reproductive concerns, assessed with the Reproductive Concerns After Cancer scale. RESULTS: Sexual dysfunction was reported by 26% of men, and a high level of reproductive concerns was reported by 28%. Lower satisfaction with sex life was associated with older age (ß = -0.41), negative body image (ß = -0.42), not having a partner (ß = 4.8), and dissatisfaction with sex life before cancer (ß = 8.31). Negative body image was associated with reproductive concerns in the dimensions of fertility potential (ß = 0.06), partner disclosure (ß = 0.08), and child's health (ß = 0.07), whereas having had fertility preservation predicted higher levels of concerns with regard to personal health (ß = 0.52) and achieving pregnancy (ß = 0.53). Clinical variables did not predict either sexual function or reproductive concerns. CLINICAL IMPLICATIONS: Our results show that the majority of young men diagnosed with testicular cancer do not report sexual dysfunction or reproductive concerns 2 years after diagnosis. A sizeable minority, however, does report dysfunction or reproductive concerns, which should be recognized in the follow-up care of this population. STRENGTHS & LIMITATIONS: A strength of the study is the use of high-quality registry data and validated instruments. The lack of Swedish norms for sexual function and reproductive concerns is a possible limitation. CONCLUSION: A subgroup of young men treated for testicular cancer report sexual dysfunction or reproductive concerns approximately 2 years after diagnosis. Factors associated with these issues seem to mainly be psychological, rather than medical, nature. Ljungman L, Eriksson LE, Flynn KE, et al. Sexual Dysfunction and Reproductive Concerns in Young Men Diagnosed With Testicular Cancer: An Observational Study. J Sex Med 2019;16:1049-1059.


Assuntos
Fertilidade , Reprodução , Disfunções Sexuais Fisiológicas/epidemiologia , Neoplasias Testiculares/patologia , Adolescente , Adulto , Imagem Corporal , Feminino , Humanos , Masculino , Satisfação Pessoal , Gravidez , Prevalência , Estudos Prospectivos , Qualidade de Vida , Inquéritos e Questionários , Suécia , Adulto Jovem
3.
Ann Oncol ; 29(8): 1658-1686, 2018 08 01.
Artigo em Inglês | MEDLINE | ID: mdl-30113631

RESUMO

The European Society for Medical Oncology (ESMO) consensus conference on testicular cancer was held on 3-5 November 2016 in Paris, France. The conference included a multidisciplinary panel of 36 leading experts in the diagnosis and treatment of testicular cancer (34 panel members attended the conference; an additional two panel members [CB and K-PD] participated in all preparatory work and subsequent manuscript development). The aim of the conference was to develop detailed recommendations on topics relating to testicular cancer that are not covered in detail in the current ESMO Clinical Practice Guidelines (CPGs) and where the available level of evidence is insufficient. The main topics identified for discussion related to: (1) diagnostic work-up and patient assessment; (2) stage I disease; (3) stage II-III disease; (4) post-chemotherapy surgery, salvage chemotherapy, salvage and desperation surgery and special topics; and (5) survivorship and follow-up schemes. The experts addressed questions relating to one of the five topics within five working groups. Relevant scientific literature was reviewed in advance. Recommendations were developed by the working groups and then presented to the entire panel. A consensus vote was obtained following whole-panel discussions, and the consensus recommendations were then further developed in post-meeting discussions in written form. This manuscript presents the results of the expert panel discussions, including the consensus recommendations and a summary of evidence supporting each recommendation. All participants approved the final manuscript.


Assuntos
Oncologia/normas , Recidiva Local de Neoplasia/prevenção & controle , Neoplasias Embrionárias de Células Germinativas/terapia , Guias de Prática Clínica como Assunto , Neoplasias Testiculares/terapia , Assistência ao Convalescente/métodos , Assistência ao Convalescente/normas , Sobreviventes de Câncer/psicologia , Quimiorradioterapia Adjuvante/métodos , Quimiorradioterapia Adjuvante/normas , Conferências de Consenso como Assunto , Europa (Continente) , Humanos , Masculino , Oncologia/métodos , Terapia Neoadjuvante/métodos , Terapia Neoadjuvante/normas , Recidiva Local de Neoplasia/epidemiologia , Estadiamento de Neoplasias , Neoplasias Embrionárias de Células Germinativas/diagnóstico , Neoplasias Embrionárias de Células Germinativas/patologia , Orquiectomia/psicologia , Cuidados Paliativos/métodos , Cuidados Paliativos/normas , Prognóstico , Qualidade de Vida , Fatores de Risco , Terapia de Salvação/métodos , Terapia de Salvação/normas , Sociedades Médicas/normas , Sobrevivência , Neoplasias Testiculares/diagnóstico , Neoplasias Testiculares/patologia , Testículo/diagnóstico por imagem , Testículo/patologia , Testículo/cirurgia
4.
Clin Endocrinol (Oxf) ; 88(3): 432-441, 2018 03.
Artigo em Inglês | MEDLINE | ID: mdl-29245176

RESUMO

OBJECTIVE: Cancer and its treatment in childhood and young adulthood can cause hypogonadism, leading to increased risk of long-term morbidity and mortality. The aim of this study was to evaluate the risk of presenting with biochemical signs of hypogonadism in testicular cancer survivors (TCS) and male childhood cancer survivors (CCS) in relation to the type of treatment given. DESIGN: Case-control study. PATIENTS: Ninety-two TCS, 125 CCS (mean age 40 and median age 34 years, respectively; mean follow-up time 9.2 and 24 years, respectively) and a corresponding number of age-matched controls. MEASUREMENTS: Fasting morning blood samples were analysed for total testosterone (TT), follicle-stimulating hormone (FSH) and luteinizing hormone (LH). The odds ratios (OR) for hypogonadism, defined as primary, secondary, compensated or ongoing androgen replacement, were calculated for TCS and CCS and for subgroups defined by diagnosis and treatment. RESULTS: Hypogonadism was found in 26% of CCS and 36% of TCS, respectively (OR: 2.1, P = .025 and OR = 2.3, P = .021). Among CCS, the OR was further increased in those given testicular irradiation (OR = 28, P = .004). Radiotherapy other than cranial or testicular irradiation plus chemotherapy, or cranial irradiation without chemotherapy, associated also with increased ORs (OR = 3.7, P = .013, and OR = 4.4, P = .038, respectively). Among TCS, those receiving >4 cycles of cisplatin-based chemotherapy had OR = 17, P = .015. CONCLUSIONS: Biochemical signs of testosterone deficiency are recognized as markers of decreased life expectancy. Thus, the risk of hypogonadism in TCS and CCS should be recognized and emphasizes the need of long-term follow-up for these men.


Assuntos
Sobreviventes de Câncer , Hipogonadismo/etiologia , Neoplasias Testiculares/complicações , Adolescente , Adulto , Estudos de Casos e Controles , Criança , Cisplatino/farmacologia , Humanos , Hipogonadismo/mortalidade , Hipogonadismo/radioterapia , Expectativa de Vida , Masculino , Fatores de Risco , Neoplasias Testiculares/terapia , Testosterona/deficiência , Adulto Jovem
6.
Ann Oncol ; 27(7): 1299-304, 2016 07.
Artigo em Inglês | MEDLINE | ID: mdl-27052649

RESUMO

BACKGROUND: The purpose of the protocol was to reduce the treatment burden in clinical stage I (CSI) seminoma by offering risk-adapted treatment. The protocol aimed to prospectively validate the proposed risk factors for relapse, stromal invasion of the rete testis and tumor diameter >4 cm, and to evaluate the efficacy of one course of adjuvant carboplatin. PATIENTS AND METHODS: From 2007 to 2010, 897 patients were included in a prospective, population-based, risk-adapted treatment protocol implementing one course of adjuvant carboplatin AUC7 (n = 469) or surveillance (n = 422). In addition, results from 221 patients receiving carboplatin between 2004 and 2007 are reported. RESULTS: At a median follow-up of 5.6 years, 69 relapses have occurred. Stromal invasion of the rete testis [hazard ratio (HR) 1.9, P = 0.011] and tumor diameter >4 cm (HR 2.7, P < 0.001) were identified as risk factors predicting relapse. In patients without risk factors, the relapse rate (RR) was 4.0% for patients managed by surveillance and 2.2% in patients receiving adjuvant carboplatin. In patients with one or two risk factors, the RR was 15.5% in patients managed by surveillance and 9.3% in patients receiving adjuvant carboplatin. We found no increased RR in patients receiving carboplatin <7 × AUC compared with that in patients receiving ≥7 × AUC. CONCLUSION: Stromal invasion in the rete testis and tumor diameter >4 cm are risk factors for relapse in CSI seminoma. Patients without risk factors have a low RR and adjuvant therapy is not justified in these patients. The efficacy of adjuvant carboplatin is relatively low and there is need to explore more effective adjuvant treatment options in patients with high-risk seminoma. The data do not support the concept of a steep dose response for adjuvant carboplatin.


Assuntos
Carboplatina/administração & dosagem , Quimioterapia Adjuvante/efeitos adversos , Recidiva Local de Neoplasia/tratamento farmacológico , Seminoma/tratamento farmacológico , Adulto , Idoso , Carboplatina/efeitos adversos , Terapia Combinada/efeitos adversos , Intervalo Livre de Doença , Relação Dose-Resposta a Droga , Humanos , Masculino , Pessoa de Meia-Idade , Recidiva Local de Neoplasia/epidemiologia , Recidiva Local de Neoplasia/patologia , Estadiamento de Neoplasias , Noruega/epidemiologia , Fatores de Risco , Seminoma/epidemiologia , Seminoma/patologia , Suécia/epidemiologia , Resultado do Tratamento
7.
Ann Oncol ; 25(11): 2167-2172, 2014 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-25114021

RESUMO

BACKGROUND: SWENOTECA has since 1998 offered patients with clinical stage I (CS I) nonseminoma, adjuvant chemotherapy with one course of bleomycin, etoposide and cisplatin (BEP). The aim has been to reduce the risk of relapse, sparing patients the need of toxic salvage treatment. Initial results on 312 patients treated with one course of adjuvant BEP, with a median follow-up of 4.5 years, have been previously published. We now report mature and expanded results. PATIENTS AND METHODS: In a prospective, binational, population-based risk-adapted treatment protocol, 517 Norwegian and Swedish patients with CS I nonseminoma received one course of adjuvant BEP. Patients with lymphovascular invasion (LVI) in the primary testicular tumor were recommended one course of adjuvant BEP. Patients without LVI could choose between surveillance and one course of adjuvant BEP. Data for patients receiving one course of BEP are presented in this study. RESULTS: At a median follow-up of 7.9 years, 12 relapses have occurred, all with IGCCC good prognosis. The latest relapse occurred 3.3 years after adjuvant treatment. The relapse rate at 5 years was 3.2% for patients with LVI and 1.6% for patients without LVI. Five-year cause-specific survival was 100%. CONCLUSIONS: The updated and expanded results confirm a low relapse rate following one course of adjuvant BEP in CS I nonseminoma. One course of adjuvant BEP should be considered a standard treatment in CS I nonseminoma with LVI. For patients with CS I nonseminoma without LVI, one course of adjuvant BEP is also a treatment option.


Assuntos
Bleomicina/administração & dosagem , Quimioterapia Adjuvante , Cisplatino/administração & dosagem , Etoposídeo/administração & dosagem , Neoplasias Testiculares/tratamento farmacológico , Adolescente , Adulto , Idoso , Protocolos de Quimioterapia Combinada Antineoplásica/administração & dosagem , Humanos , Estimativa de Kaplan-Meier , Masculino , Pessoa de Meia-Idade , Recidiva Local de Neoplasia/tratamento farmacológico , Recidiva Local de Neoplasia/patologia , Estadiamento de Neoplasias , Neoplasias Testiculares/mortalidade , Neoplasias Testiculares/patologia
8.
Int J Androl ; 34(1): 69-76, 2011 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-20345878

RESUMO

Childhood cancer survivors (CCS) have an increased risk of impaired spermatogenesis, but data regarding the disease- and treatment-related risk factors of azoospermia are scarce. Such information is crucial both for counselling CCS and for selecting patients for testicular tissue cryopreservation. The proportion of azoospermic men in CCS was 18% [95% confidence interval (CI): 12-26], specifically for leukaemias (19%; 95% CI: 5.5-42), Hodgkin's disease (53%; 95% CI: 29-76), non-Hodgkin's lymphoma (11%; 95% CI: 0.28-48) and testicular cancer (11%; 95% CI: 0.28-48). In CCS treated with high doses of alkylating agents, the proportion of azoospermic men was 80% (95% CI: 28-99) and if radiotherapy was used additionally, the proportion was 64% (95% CI: 35-87). In CCS with subnormal Inhibin B levels, the proportion of azoospermic men was 66% (95% CI: 47-81) and for those with elevated follicle-stimulating hormone (FSH) levels, the proportion was 50% (95% CI: 35-67). Among CCS with subnormal testicular volume (≤ 24 mL), azoospermia was found in 61% (95% CI: 39-80) of the cases. Most childhood cancer diagnoses are associated with an increased risk of azoospermia, especially in CCS receiving testicular irradiation, high doses of alkylating drugs and other types of cytotoxic treatment, if combined with irradiation. Inhibin B, FSH and testicular volume can be used as predictors for the risk of azoospermia.


Assuntos
Alquilantes/efeitos adversos , Azoospermia/etiologia , Neoplasias/terapia , Adulto , Antineoplásicos Alquilantes , Azoospermia/epidemiologia , Causalidade , Criança , Ensaio de Imunoadsorção Enzimática , Hormônio Foliculoestimulante/sangue , Doença de Hodgkin/terapia , Humanos , Inibinas/sangue , Leucemia/terapia , Linfoma não Hodgkin/terapia , Masculino , Pessoa de Meia-Idade , Neoplasias/tratamento farmacológico , Neoplasias/radioterapia , Puberdade , Sobreviventes , Neoplasias Testiculares/etiologia , Neoplasias Testiculares/terapia
9.
Int J Androl ; 32(6): 695-703, 2009 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-19178596

RESUMO

As oncological treatment might impair the patients' fertility, male cancer patients are offered to cryopreserve semen prior to treatment. Impaired sperm DNA quality is associated with reduced fertility, and in case of assisted reproduction, sperm DNA integrity may have an impact on choice of method. Therefore, we have assessed sperm DNA integrity in cancer patients, comparing pre- and post-treatment quality. Sperm DNA integrity was investigated in cryopreserved semen from 121 cancer patients, the predominating diagnoses were germ cell cancer (GCC) and Hodgkin's lymphoma (HL). Post-treatment samples, with a median follow-up of 3 years, were analysed for 58 of the men, allowing a pre- and post-treatment analysis on an individual basis. Sperm DNA integrity was assessed using the Sperm Chromatin Structure Assay and expressed here as the DNA Fragmentation Index (DFI%). One hundred and thirty-seven fertile men served as controls. Before treatment, GCC (n = 84) and HL (n = 18) patients had higher DFI% than controls (n = 143) with a mean difference of 7.7 (95% CI 3.2-8.8) and 7.0 (95% CI 2-12), respectively. The same trend was observed for other cancer diagnoses, but without reaching statistical significance (mean difference 3.6, 95% CI -1.2 to 8.4). No increase was seen in DFI% comparing pre- and post-treatment semen, regardless of treatment modality. A moderate elevation of DFI% was observed in cryopreserved semen from cancer patients. Oncological treatment, generally, did not induce any increase in DFI. These findings should be considered when discussing the utilization of pre-treatment cryopreserved semen vs. post-treatment fresh sperm in cancer patients undergoing assisted reproduction.


Assuntos
DNA/genética , Neoplasias Embrionárias de Células Germinativas/genética , Neoplasias Embrionárias de Células Germinativas/terapia , Neoplasias/genética , Espermatozoides/efeitos dos fármacos , Adulto , Criopreservação , DNA/farmacologia , Fragmentação do DNA/efeitos dos fármacos , Fertilidade/genética , Humanos , Masculino , Neoplasias/terapia , Sêmen/fisiologia
10.
Andrology ; 3(1): 102-10, 2015 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-25270123

RESUMO

Although clinical stage I (CS I) testicular cancer is highly curable, the optimal management is controversial. The aims of the Swedish and Norwegian Testicular Cancer Group (SWENOTECA) studies for CS I non-seminoma (NS) and seminoma (S) have been to reduce treatment intensity while maintaining high survival rates, reduce the number of patients needing salvage treatment and implement patient autonomy with regard to adjuvant treatment. During 1998-2010 NS CSI patients with lymphovascular invasion (LVI) of the primary tumor (high risk) were recommended bleomycin, etoposide, cisplatin (BEP) × 1. During 2000-2006 S CS I patients had the option to choose surveillance or adjuvant radiotherapy (AR). In 2004, carboplatin × 1 (AUC7) was added as a third treatment option. In 2007 a new risk-adapted treatment protocol for S CS I was initiated. Patients with two risk factors (tumor size > 4 cm, tumor growth in the rete testis) were recommended carboplatin × 1 and patients with 0-1 risk factor were recommended surveillance. All patients were provided with oral and written information of possible management options and could choose the other alternative. The relapse rate for NS CS I with BEP × 1 was 3.2% for high risk, and 1.6% for low-risk patients. Five-year cause-specific survival was 100%. For S CS I-patients treated before 2007, 14.3% on surveillance relapsed, 3.9% after carboplatin, and 0.8% after AR. Five-year cause-specific survival was 99.9%. For S CS I-patients treated from 2007, a relapse rate <3% was confirmed for patients without risk factors. SWENOTECA considers BEP × 1 standard adjuvant treatment in NS CS I high-risk patients. Low-risk patients should have the opportunity to receive BEP × 1 following thorough information regarding pros and cons. For S CS I patients without risk factors, adjuvant treatment is not necessary. For patients with risk factors, patient autonomy should be respected.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Neoplasias Embrionárias de Células Germinativas/patologia , Neoplasias Embrionárias de Células Germinativas/terapia , Neoplasias Testiculares/patologia , Neoplasias Testiculares/terapia , Conduta Expectante , Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversos , Quimioterapia Adjuvante , Progressão da Doença , Intervalo Livre de Doença , Humanos , Masculino , Recidiva Local de Neoplasia , Estadiamento de Neoplasias , Neoplasias Embrionárias de Células Germinativas/mortalidade , Noruega/epidemiologia , Seleção de Pacientes , Valor Preditivo dos Testes , Medição de Risco , Fatores de Risco , Suécia/epidemiologia , Neoplasias Testiculares/mortalidade , Fatores de Tempo , Resultado do Tratamento , Carga Tumoral
11.
Andrology ; 2(2): 252-8, 2014 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-24519955

RESUMO

Azoospermia is a serious potential side effect following treatment for testicular cancer (TC). Our purpose was to examine possible predictors of long-term azoospermia in TC survivors. Ejaculates and blood samples were obtained from 217 patients at post-orchidectomy but before further treatment (T0 ) and/or at one or more of the time points 6, 12, 24, 36-60 months after treatment (T6 , T12 , T24 , T36-60 ). All patients delivered ejaculates at T36-60 , of which 117 also had confirmed presence of spermatozoa in the ejaculate at T0 , enabling longitudinal analyses. Types of therapy, cryptorchidism and Inhibin B before and after treatment were evaluated in relation to risk of azoospermia at T36 . Inhibin B levels at T6 , T12 and T24 were predictors of azoospermia at T36 with cut-off levels at 49.7, 55.9 and 97.8 ng/L respectively (sensitivity 100%, specificity 57-78%). The frequency of azoospermia in all patients at T36-60 was 7.8% (95% CI 4.9-12%). As compared to surveillance patients, only those receiving >4 cycles of chemotherapy or ≥4 cycles of chemotherapy + radiotherapy (RT) had increased risk of long-term azoospermia (63% vs. 4.4% in the surveillance group; p = 0.0018). In conclusion, all patients with sperm production at post-orchidectomy but before further treatment and Inhibin B >56 ng/L 12 months after treatment had sperm production 3 years post-treatment. Eight per cent of TC survivors had azoospermia 3-5 years post-treatment, with highest risk in those receiving >4 cycles of chemotherapy or ≥4 cycles of chemotherapy in combination with RT.


Assuntos
Azoospermia/sangue , Azoospermia/epidemiologia , Inibinas/sangue , Neoplasias Testiculares , Adolescente , Adulto , Carboplatina/efeitos adversos , Carboplatina/uso terapêutico , Cisplatino/efeitos adversos , Cisplatino/uso terapêutico , Criptorquidismo/complicações , Etoposídeo/efeitos adversos , Etoposídeo/uso terapêutico , Humanos , Masculino , Pessoa de Meia-Idade , Orquiectomia/efeitos adversos , Espermatozoides , Neoplasias Testiculares/tratamento farmacológico , Neoplasias Testiculares/radioterapia , Neoplasias Testiculares/cirurgia , Vimblastina/efeitos adversos , Vimblastina/uso terapêutico , Adulto Jovem
12.
Hum Reprod ; 21(12): 3199-205, 2006 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-16931803

RESUMO

BACKGROUND: We evaluated the impact of testicular germ cell cancer (TGCC), its treatment and length of follow-up on sperm DNA integrity. METHODS: In 96 TGCC patients, semen was collected at specific intervals until 5 years after treatment. Sperm DNA integrity was assessed by the sperm chromatin structure assay (SCSA, n = 193) and by the terminal deoxynucleotidyl transferase-mediated dUTP nick-end labelling (TUNEL, n = 159) assay. Results were expressed as DNA fragmentation index (DFI). Controls comprised of 278 military conscripts. RESULTS: Post-surgery testicular cancer (TC) patients did not differ from controls. Compared with pretreatment values, radiotherapy induced a transient increase in SCSA(DFI) (medians: 12 versus 19%; P = 0.03), normalizing after 3-5 years. One year or more after therapy, 5/13 (38%) of normozoospermic, irradiated patients had SCSA(DFI) >27% compared with 7% of normozoospermic controls (P = 0.002). More than two cycles of chemotherapy decreased DFI 3-5 years post-therapy (median SCSA(DFI): 12 versus 9.1%, P = 0.02; median TUNEL(DFI): 11 versus 7.5%, P = 0.03). CONCLUSION: Irradiation increases sperm DNA damage 1-2 years after treatment, and 38% of irradiated patients with normozoospermia had high (>27%) DNA damage, which may affect the sperm-fertilizing ability. TC per se is not associated with an increase of DFI, and DFI is reduced by three or more cycles of chemotherapy.


Assuntos
Antineoplásicos/efeitos adversos , Dano ao DNA , Neoplasias Embrionárias de Células Germinativas/genética , Neoplasias Embrionárias de Células Germinativas/terapia , Lesões por Radiação/genética , Radioterapia/efeitos adversos , Espermatozoides/efeitos dos fármacos , Espermatozoides/efeitos da radiação , Neoplasias Testiculares/genética , Neoplasias Testiculares/terapia , Adulto , Cromatina/ultraestrutura , Humanos , Marcação In Situ das Extremidades Cortadas , Estudos Longitudinais , Masculino , Neoplasias Embrionárias de Células Germinativas/radioterapia , Fatores de Risco , Neoplasias Testiculares/radioterapia
13.
Acta Oncol ; 40(1): 56-62, 2001.
Artigo em Inglês | MEDLINE | ID: mdl-11321662

RESUMO

The aim of this study was to investigate the frequency of p53 alterations in bilateral breast cancer and to evaluate a possible clonal relationship between the paired tumours regarding p53 alteration and other pathobiological variables. Tumours from 34 patients were investigated with immunohistochemistry, single strand conformation polymorphism analysis and DNA-sequence analysis applied to exons 5-8. Fifteen percent of the 68 tumours showed positive immunoreaction and/or presence of mutation. The occurrence of p53 accumulation was 9% and the prevalence of gene mutation 10%. No significant concordance was found between the tumours in the same patient for p53 alterations, progesterone receptor status or DNA ploidy. S-phase fraction showed a weak correlation, not statistically significant. Oestrogen receptor status was the only variable that exhibited a significant concordance. No convincing evidence was found for other associations between the paired tumours or for a high prevalence of p53 alterations in bilateral breast cancer.


Assuntos
Neoplasias da Mama/genética , Genes p53 , Neoplasias da Mama/metabolismo , DNA de Neoplasias/análise , Feminino , Humanos , Imuno-Histoquímica , Pessoa de Meia-Idade , Mutação , Ploidias , Polimorfismo Conformacional de Fita Simples , Receptores de Estrogênio/análise , Receptores de Progesterona/análise , Fase S , Proteína Supressora de Tumor p53/biossíntese , Proteína Supressora de Tumor p53/imunologia
14.
Hum Reprod ; 19(6): 1418-25, 2004 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-15105386

RESUMO

BACKGROUND: Testicular cancer (TC) patients have a high survival rate, and the question of post-therapy recovery of sperm production and its dependence on genetic predisposition is of major interest. METHODS: Ejaculates were obtained from 112 TC patients at one or more of the following time points: post-orchidectomy, or 6, 12, 24, 36 and 60 months post-therapy. The lengths of the androgen receptor (AR) function modulating CAG and GGN repeats in leukocyte DNA were also analysed. RESULTS: No significant decrease in sperm concentration was seen in men who received 1-2 cycles of adjuvant chemotherapy (ACT). Radiotherapy (RT) or more than two cycles of chemotherapy (HCT) caused an initial decline in sperm concentration, which returned to pre-treatment levels 2-5 years after therapy. In the HCT group, sperm concentration 12-24 months post-treatment (T(12-24)) was inversely correlated with CAG length (rho = -0.72, P = 0.03). The type of treatment, but not the concentration at T(0), was an independent predictor of sperm concentration at T(6) (P < 0.0005) and T(12-24) (P = 0.004). CONCLUSION: ACT did not induce a significant decline in sperm concentration. After HCT and RT, a significant reduction of sperm concentration was observed, recovering to pre-treatment levels 2-5 years post-treatment. In HCT-treated patients, the AR CAG length influenced the recovery of spermatogenesis.


Assuntos
Germinoma/genética , Germinoma/terapia , Polimorfismo Genético , Receptores Androgênicos/genética , Contagem de Espermatozoides , Neoplasias Testiculares/genética , Neoplasias Testiculares/terapia , Adulto , Quimioterapia Adjuvante , Germinoma/patologia , Germinoma/radioterapia , Humanos , Estudos Longitudinais , Masculino , Orquiectomia , Valor Preditivo dos Testes , Motilidade dos Espermatozoides , Neoplasias Testiculares/patologia , Neoplasias Testiculares/radioterapia , Fatores de Tempo , Repetições de Trinucleotídeos/genética
15.
Astrophys J ; 528(2): L101-L104, 2000 Jan 10.
Artigo em Inglês | MEDLINE | ID: mdl-10600628

RESUMO

We report the recovery of a spectroscopic event in eta Carinae in 1997/1998 after a prediction by Damineli in 1996. A true periodicity with P=2020+/-5 days (0.2% uncertainty) is obtained. The line intensities and the radial velocity curve display a phase-locked behavior, implying that the energy and dynamics of the event repeat from cycle to cycle. This rules out S Doradus oscillation or multiple shell ejection by an unstable star as the explanation of the spectroscopic events. A colliding-wind binary scenario is supported by our spectroscopic data and by X-ray observations. Although deviations from a simple case exist around periastron, intensive monitoring during the next event (mid-2003) will be crucial to our understanding of the system.

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