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1.
J Endocrinol Invest ; 47(3): 557-570, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-37584897

RESUMO

PURPOSE: Human Papillomavirus (HPV) in semen represents a controversial topic. Recent evidence suggests a correlation with poor semen quality, but its detection is still unstandardized in this biological fluid. Thus, the aims of this study were to verify the ability of nested PCR to reveal HPV-DNA in semen; to evaluate association of seminal HPV with sperm parameters and risk factors for infection; to investigate the rate of HPV-DNA positivity in patients with and without risk factors; to assess HPV transcriptional activity. METHODS: We enrolled sexually active men and collected clinical and anamnestic data during andrological and sexually transmitted infections (STIs) evaluation. For each patient, we performed semen analysis and nested PCR to detect HPV-DNA in semen. In positive semen samples, we proceeded with genotyping and RNA quantification to detect HPV transcriptional activity. RESULTS: We enrolled 185 men (36.0 ± 8.3 years), of which 85 with (Group A) and 100 without HPV risk factors (Group B). Nested PCR was able to reveal HPV-DNA in semen, discovering a prevalence of 8.6% (11.8% in Group A and 6% in Group B, respectively). We observed no correlation between sperm quality and seminal HPV. Genital warts and previous anogenital infection were significantly associated with the risk of HPV positivity in semen. Moreover, no viral transcriptional activity was detected in positive semen samples. CONCLUSIONS: Our study suggests that searching for seminal HPV could be important in patients both with and without risk factors, especially in assisted reproduction where the risk of injecting sperm carrying HPV-DNA is possible.


Assuntos
Infecções por Papillomavirus , Sêmen , Humanos , Masculino , Papillomavirus Humano , Análise do Sêmen , Infecções por Papillomavirus/epidemiologia , DNA
2.
J Endocrinol Invest ; 47(1): 141-147, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-37306894

RESUMO

PURPOSE: Sexual dysfunctions are often experienced by male patients with acromegaly, due to a combination of hypogonadism and other comorbidities, but are a scarcely investigated complication. Erectile dysfunction is also closely related to cardiovascular diseases through endothelial dysfunction. Therefore, this project aimed to assess the prevalence of erectile dysfunction in a population of acromegalic men and evaluate its association with cardio-metabolic disorders, also exploring associations with androgen and estrogen receptor gene polymorphisms. METHODS: Sexually active men aged 18-65 with previous diagnosis of acromegaly were recruited. Clinical and laboratory data were retrospectively collected. Each patient also provided a blood sample for AR and ERß gene polymorphisms analyses and filled out the IIEF-15 questionnaire. RESULTS: Twenty men with previous diagnosis of acromegaly (mean age 48.4 ± 10.0 years) were recruited. 13/20 subjects (65%) had erectile dysfunction, but only four had a concurrent biochemical hypogonadism, with no significant correlation with IIEF-15 scores. Total testosterone negatively correlated with sexual intercourse satisfaction domain (ρ = - 0.595; p = 0.019) and general satisfaction domain (ρ = - 0.651; p = 0.009). IGF-1 levels negatively correlated with biochemical hypogonadism (ρ = - 0.585; p = 0.028). The number of CAG and CA repeats in AR and ERß receptors genes was not significantly associated with IIEF-15 scores or with GH/IGF-1 levels, but a negative correlation between CA repeats and the presence of cardiomyopathy (ρ = - 0.846; p = 0.002) was present. CONCLUSIONS: Men with acromegaly have a high prevalence of erectile dysfunction, but it does not appear to be correlated with treatments, testosterone levels and AR/ER-beta signaling. Nonetheless, a shorter CA polymorphic trait (ERbeta) is associated with the presence of cardiomyopathy. If confirmed, these data may suggest an association between an incorrect hormonal balance and increased cardiovascular risk in acromegaly subjects.


Assuntos
Acromegalia , Cardiomiopatias , Disfunção Erétil , Hipogonadismo , Humanos , Masculino , Adulto , Pessoa de Meia-Idade , Androgênios , Disfunção Erétil/epidemiologia , Disfunção Erétil/genética , Acromegalia/complicações , Acromegalia/genética , Fator de Crescimento Insulin-Like I/genética , Estudos Retrospectivos , Receptor beta de Estrogênio/genética , Testosterona , Hipogonadismo/complicações , Hipogonadismo/epidemiologia , Hipogonadismo/genética , Polimorfismo Genético , Estrogênios
3.
J Endocrinol Invest ; 46(9): 1725-1736, 2023 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-37071372

RESUMO

PURPOSE: Many issues still remain unresolved in the management of pubertal patients with gender incongruence (GI). The aim of this review is to discuss the main aspects of the treatment of these patients to provide a practical approach for clinicians. METHODS: A comprehensive literature search within PubMed was performed to provide updates of available evidence regarding the impact on bioethical, medical and fertility issues in gender incongruence during transition age. RESULTS: Gender Affirming Hormone Treatment (GAHT) and Gender Affirming Surgery (GAS) can induce unsatisfaction with change, future regrets, and the risk of infertility. This raises ethical issues especially in the management of pubertal patients that remain unresolved. Therapy with GnRH analogues (GnRHa) is intended to delay puberty, so as to give the adolescent a longer period of time to decide whether to continue with the treatments. At the level of physical changes, this therapy may have an effect on bone mineralization and body composition; however, long-term longitudinal data are not yet available. An important feature related to the use of GnRHa is the risk of fertility. Gamete cryopreservation is the most established method of fertility preservation (FP) and should be counselled to transgender adolescents. However, these patients are not always interested in having biological children. CONCLUSION: Based on the current evidence, there is a need to conduct further research to clarify certain issues and to standardize clinical practice and improve counselling in transgender adolescent decision making and avoid regrets in the future.


Assuntos
Preservação da Fertilidade , Disforia de Gênero , Infertilidade , Pessoas Transgênero , Transexualidade , Criança , Adolescente , Humanos , Aconselhamento , Criopreservação , Disforia de Gênero/tratamento farmacológico , Identidade de Gênero
4.
J Endocrinol Invest ; 46(1): 89-101, 2023 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-35943723

RESUMO

PURPOSE: While SARS-CoV-2 infection appears not to be clinically evident in the testes, indirect inflammatory effects and fever may impair testicular function. To date, few long-term data of semen parameters impairment after recovery and comprehensive andrological evaluation of recovered patients has been published. The purpose of this study was to investigate whether SARS-CoV-2 infection affect male reproductive health. METHODS: Eighty patients were recruited three months after COVID-19 recovery. They performed physical examination, testicular ultrasound, semen analysis, sperm DNA integrity evaluation (TUNEL), anti-sperm antibodies (ASA) testing, sex hormone profile evaluation (Total testosterone, LH, FSH). In addition, all patients were administered International Index of Erectile Function questionnaire (IIEF-15). Sperm parameters were compared with two age-matched healthy pre-COVID-19 control groups of normozoospermic (CTR1) and primary infertile (CTR2) subjects. RESULTS: Median values of semen parameters from recovered SARS-CoV-2 subjects were within WHO 2010 fifth percentile. Mean percentage of sperm DNA fragmentation (%SDF) was 14.1 ± 7.0%. Gelatin Agglutination Test (GAT) was positive in 3.9% of blood serum samples, but no positive semen plasma sample was found. Only five subjects (6.2%) had total testosterone levels below the laboratory reference range. Mean bilateral testicular volume was 31.5 ± 9.6 ml. Erectile dysfunction was detected in 30% of subjects. CONCLUSION: Our data remark that COVID-19 does not seem to cause direct damage to the testicular function, while indirect damage appears to be transient. It is possible to counsel infertile couples to postpone the research of parenthood or ART procedures around three months after recovery from the infection.


Assuntos
COVID-19 , Infertilidade Masculina , Humanos , Masculino , Infertilidade Masculina/etiologia , Infertilidade Masculina/diagnóstico , Saúde Reprodutiva , COVID-19/complicações , SARS-CoV-2 , Sêmen , Testosterona
5.
J Endocrinol Invest ; 45(9): 1625-1639, 2022 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-35286610

RESUMO

PURPOSE: Adolescence represents an important window for gonadal development. The aim of this review is to carry out a critical excursus of the most recent literature on endogenous and exogenous risk factors related to testicular function, focusing the research on adolescence period. METHODS: A comprehensive literature search within PubMed was performed to provide a summary of currently available evidence regarding the impact on adolescence of varicocele, cryptorchidism, cancer, diabetes, lifestyle factors, endocrine disruptors, obesity and sexually transmitted diseases. We focused on human studies that evaluated a possible impact of these factors on puberty timing and their effects on andrological health. RESULTS: Evidence collected seems to suggest that andrological health in adolescence may be impaired by several factors, as varicocele, cryptorchidism, and childhood cancer. Despite an early diagnosis and treatment, many adolescents might still have symptoms and sign of a testicular dysfunction in their adult life and at the current time it is not possible to predict which of them will experience andrological problems. Lifestyle factors might have a role in these discrepancies. Most studies point out towards a correlation between obesity, insulin resistance, alcohol, smoking, use of illegal drugs and testicular function in pubertal boys. Also, endocrine disruptors and sexually transmitted diseases might contribute to impair reproductive health, but more studies in adolescents are needed. CONCLUSION: According to currently available evidence, there is an emerging global adverse trend of high-risk and unhealthy behaviors in male adolescents. A significant proportion of young men with unsuspected and undiagnosed andrological disorders engage in behaviors that could impair testicular development and function, with an increased risk for later male infertility and/or hypogonadism during the adult life. Therefore, adolescence should be considered a key time for intervention and prevention of later andrological diseases.


Assuntos
Criptorquidismo , Disruptores Endócrinos , Varicocele , Adolescente , Adulto , Criança , Disruptores Endócrinos/efeitos adversos , Humanos , Masculino , Obesidade/complicações , Fatores de Risco , Testículo
6.
J Endocrinol Invest ; 44(10): 2273-2284, 2021 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-33661511

RESUMO

PURPOSE: Testicular germ cell tumours (TGCTs) is the most common malignancy among young adult males. The etiology is multifactorial and both environmental and genetic factors play an important role in the origin and development of TGCT. Genetic susceptibility may result from the interaction of multiple common and low-penetrance genetic variants and one of the main candidate genes is PDE11A. Many PDE11A polymorphisms were found responsible for a reduced PDE activity in TGCT patients, who often also display impaired hormone and sperm profile. The aim of this study was to investigate testicular function and PDE11A sequence in testicular cancer cases. METHODS: Semen analysis was performed in 116 patients with unilateral and bilateral sporadic TGCTs and in 120 cancer-free controls. We also investigated hormone profile and PDE11A polymorphisms using peripheral blood samples. RESULTS: Our data revealed that TGCT patients showed lower testosterone levels, higher gonadotropins levels and worse semen quality than controls, although the mean and the medians of sperm parameters are within the reference limits. PDE11A sequencing detected ten polymorphisms not yet associated with TGCTs before. Among these, G223A in homozygosity and A288G in heterozygosity were significantly associated with a lower risk of testicular tumour and they displayed a positive correlation with total sperm number. CONCLUSIONS: Our findings highlight the key role of PDE11A in testis and suggest the presence of an underlying complex and fine molecular mechanism which controls testis-specific gene expression and susceptibility to testicular cancer.


Assuntos
3',5'-GMP Cíclico Fosfodiesterases/genética , Predisposição Genética para Doença , Hormônios/metabolismo , Neoplasias Embrionárias de Células Germinativas/patologia , Polimorfismo de Nucleotídeo Único , Espermatozoides/patologia , Neoplasias Testiculares/patologia , Estudos de Casos e Controles , Seguimentos , Hormônios/análise , Humanos , Masculino , Pessoa de Meia-Idade , Neoplasias Embrionárias de Células Germinativas/genética , Neoplasias Embrionárias de Células Germinativas/metabolismo , Prognóstico , Análise do Sêmen , Espermatozoides/metabolismo , Neoplasias Testiculares/genética , Neoplasias Testiculares/metabolismo
7.
J Endocrinol Invest ; 44(5): 1091-1096, 2021 May.
Artigo em Inglês | MEDLINE | ID: mdl-33040303

RESUMO

PURPOSE: Sperm cryopreservation is fundamental in the management of patients undergoing gonadotoxic treatments. Concerns have risen in relation to SARS-CoV-2 and its potential for testicular involvement, since SARS-CoV-2-positive cryopreserved samples may have unknown effects on fertilization and embryo safety. This study therefore aimed to analyze the safety of sperm cryopreservation for cancer patients after the onset of the pandemic in Italy, through assessment of the risk of SARS-CoV-2 exposure and viral RNA testing of semen samples. METHODS: We recruited 10 cancer patients (mean age 30.5 ± 9.6 years) referred to our Sperm Bank during the Italian lockdown (from March 11th to May 4th 2020) who had not undergone a nasopharyngeal swab for SARS-CoV-2 testing. Patients were administered a questionnaire on their exposure to COVID-19, and semen samples were taken. Before cryopreservation, SARS-CoV-2 RNA was extracted from a 150 µl aliquot of seminal fluid in toto using QIAamp viral RNA kit (Qiagen) and amplified by a real time RT PCR system (RealStar SARS-CoV2 RT PCR, Altona Diagnostics) targeting the E and S genes. RESULTS: The questionnaire and medical interview revealed that all patients were asymptomatic and had had no previous contact with COVID-19 infected patients. All semen samples were negative for SARS-CoV-2 RNA. CONCLUSION: This preliminary assessment suggests that a thorough evaluation (especially in the setting of a multidisciplinary team) and molecular confirmation of the absence of SARS-CoV-2 in seminal fluid from asymptomatic cancer patients may assist in ensuring the safety of sperm cryopreservation.


Assuntos
COVID-19 , Criopreservação/estatística & dados numéricos , Pandemias , Preservação do Sêmen/estatística & dados numéricos , Adolescente , Adulto , COVID-19/epidemiologia , Humanos , Masculino , Pessoa de Meia-Idade , Neoplasias/complicações , Segurança do Paciente , RNA Viral/análise , Reação em Cadeia da Polimerase em Tempo Real , Cidade de Roma/epidemiologia , Bancos de Esperma , Adulto Jovem
8.
J Endocrinol Invest ; 43(10): 1391-1408, 2020 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-32323225

RESUMO

PURPOSE: To systematically review the impact of smoking habits on cardiovascular (CV) as well as on male sexual and reproductive function and to provide updated evidence on the role of electronic cigarettes (e-Cig) on the same topics. METHODS: A comprehensive Medline, Embase, and Cochrane search was performed including the following words: smoking, CV system, CV risk, erectile dysfunction (ED), and male fertility. Publications from January 1, 1969 up to February 29, 2020 were included. RESULTS: Smoking has a tremendous negative impact on CV mortality and morbidity. Current smoking behavior is also negatively associated with erectile dysfunction (ED) and impaired sperm parameters. E-Cig can release significantly lower concentrations of harmful substances when compared to regular combustible cigarettes. Whether or not the latter can result in positive CV, sexual, and fertility outcomes is still under study. Preliminary studies showed that exposure to e-Cig leads to lower vascular damage when compared to the traditional cigarette use. However, data on the long-term effects of e-Cig are lacking. Similarly, preliminary data, obtained in animal models, have suggested a milder effect of e-Cig on erectile function and sperm parameters. CONCLUSION: Available evidence showed that e-Cig are much less dangerous when compared to the traditional tobacco use. However, it should be recognized that the risk related to e-Cig is still higher when compared to that observed in non-smoking patients. Hence, e-Cig should be considered as a potential tool, in the logic of harm reduction, to reduce the CV, sexual and fertility risk in patients refractory to the fundamental, healthy choice to definitively quit smoking.


Assuntos
Fumar Cigarros/efeitos adversos , Infertilidade Masculina/induzido quimicamente , Disfunções Sexuais Fisiológicas/induzido quimicamente , Tabagismo/complicações , Fumar Cigarros/fisiopatologia , Alcatrão/administração & dosagem , Alcatrão/efeitos adversos , Humanos , Infertilidade Masculina/epidemiologia , Infertilidade Masculina/fisiopatologia , Masculino , Nicotina/administração & dosagem , Nicotina/efeitos adversos , Reprodução/efeitos dos fármacos , Reprodução/fisiologia , Saúde Reprodutiva , Comportamento Sexual/efeitos dos fármacos , Comportamento Sexual/fisiologia , Disfunções Sexuais Fisiológicas/epidemiologia , Disfunções Sexuais Fisiológicas/fisiopatologia , Tabagismo/fisiopatologia
9.
Eur Rev Med Pharmacol Sci ; 23(23): 10557-10563, 2019 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-31841212

RESUMO

OBJECTIVE: As myo-inositol (MI) deficiency has been associated with impaired sperm quality, we aimed to assess its effects on sperm kinetics objectively, using a computer-aided sperm analysis (CASA) system. PATIENTS AND METHODS: We evaluated 59 normokinetic semen samples with nonlinear progressive motility before and after incubation with a solution of MI. The samples were collected from healthy subjects aged 20-40 years who were attending our Laboratory of Seminology for fertility screening. RESULTS: We found a significant increase in linear progressive motility (28.2% ± 10.8 vs. 30.9% ± 11.0, T0 vs. T1 respectively; p <0.001) and a significant reduction in nonlinear progressive motility (21.0% ± 9.9 vs. 18.1% ± 10.2, T0 vs. T1 respectively; p <0.001) after incubation with MI. CASA analysis revealed a significant increase in curvilinear velocity (VCL) (65.0 ± 19.0 vs. 67.9 ± 20.4 µm/s, T0 vs. T1 respectively; p = 0.049). Overall, there was an increase in VCL in 42/59 samples (about 70%), mainly from non-smokers. CONCLUSIONS: These results suggest that MI has a positive in vitro effect on semen samples, but confirmation is needed through further studies taking into account factors capable of modulating MI response, such as smoking and obesity.


Assuntos
Infertilidade Masculina/tratamento farmacológico , Inositol/farmacologia , Sêmen/fisiologia , Motilidade dos Espermatozoides/efeitos dos fármacos , Adulto , Diagnóstico por Computador , Humanos , Infertilidade Masculina/diagnóstico , Infertilidade Masculina/fisiopatologia , Inositol/uso terapêutico , Masculino , Sêmen/efeitos dos fármacos , Adulto Jovem
10.
J Endocrinol Invest ; 41(2): 185-192, 2018 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-28647897

RESUMO

PURPOSE: The aim of the present study is to assess impairment of spermatogenesis induced by varicocele in, to our knowledge, the largest single-centre caseload available to date. MATERIALS AND METHODS: We conducted a retrospective study on 4230 consecutive patients attending our Department for andrological outpatient assessment and preconception check-ups between 2011 and 2014. A total of 2113 patients had varicocele (Group V), while the remaining 2117 were selected as the control group (Group C). All patients were divided into age classes (<17, 18-28, 29-39 and ≥40 years), and Group V patients were classified as "low" (I-II) or "high" (III-IV) grade. RESULTS: Varicocele patients had a higher mean height than controls, as well as lower BMI. There was also a statistically significant reduction in the concentration/mL and the total sperm number in Group V against Group C. When stratified by age, values for all semen parameters were significantly worse in the older than in the younger age classes in both Group V and Group C, except for concentration/mL and total sperm number in the 29-39 and ≥40 age classes in both groups. A multivariable logistic regression analysis showed that factors independently predicting the presence of varicocele were older age, higher BMI and smoking for more than 10 years. CONCLUSIONS: Varicocele patients show worse semen parameters compared to controls, although their values were still within WHO reference limits. Semen quality is further worsened by increased age, grade and chronic smoking.


Assuntos
Infertilidade Masculina/patologia , Sêmen/química , Espermatogênese , Varicocele/complicações , Adulto , Estudos de Casos e Controles , Humanos , Infertilidade Masculina/etiologia , Masculino , Estudos Retrospectivos , Análise do Sêmen , Motilidade dos Espermatozoides
11.
Hum Reprod ; 31(2): 263-72, 2016 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-26705149

RESUMO

STUDY QUESTION: Is spermatogenesis impairment caused by Hodgkin's lymphoma (HL) itself or by the various treatments? SUMMARY ANSWER: HL is not itself the main cause of impaired spermatogenesis, which is instead affected by the treatment; the extent of impairment depends on the type of treatment and the number of cycles. WHAT IS KNOWN ALREADY: Data in the literature are contradictory, although most studies found poor semen quality in HL patients prior to treatment. The impact of therapy on spermatogenesis depends on the type of treatment, but the time needed to recover testicular function following treatment with chemotherapeutic agents inducing azoospermia is unknown. STUDY DESIGN, SIZE, DURATION: In a retrospective study, the semen parameters of 519 patients (504 with sperm and 15 who were azoospermic) were investigated.HL patients were analysed before therapy. A longitudinal study was also conducted of semen quality in 202 patients pre- and post-ABVD (doxorubicin, bleomycin, vinblastine and dacarbazine) at T0 (baseline) and 6 (T6), 12 (T12) and 24 (T24) months after the end of treatment, and of 42 patients pre- and post-BEACOPP (bleomycin, etoposide, doxorubicin, cyclophosphamide, vincristine, procarbazine, prednisone), COPP/ABVD (cyclophosphamide, vincristine, procarbazine, prednisone, doxorubicin, bleomycin, vinblastine and dacarbazine), OPP/ABVD (vincristine, procarbazine, prednisone, doxorubicin, bleomycin, vinblastine and dacarbazine) or MOPP (mechlorethamine, vincristine, procarbazine and prednisone) and inguinal radiotherapy at different observation times (from T0 to 16 years after treatment). PARTICIPANTS/MATERIALS, SETTING, METHODS: Semen parameters were examined according to World Health Organization 2010 criteria, evaluating sperm concentration, total sperm number, progressive motility and morphology. MAIN RESULTS AND THE ROLE OF CHANCE: Our data, which pertain to the largest caseload reported to date, indicate that 75% of HL patients are normozoospermic prior to treatment. The results from the HL patients studied pre- and post-therapy demonstrate that spermatogenesis recovery depends on the therapeutic regimen used. After ABVD, there was a statistically significant decrease in sperm concentration and total sperm number at T6 and T12 (P < 0.001; P < 0.01, respectively). There was a significant drop in progressive motility (P < 0.001) and a significant increase in abnormal forms (P < 0.01) at T6. The differences in sperm concentration, total sperm number and abnormal forms at T0 and T24 were not statistically significant, indicating that sperm quality had returned to pre-therapy values. The most interesting data in terms of patient management arise from the study of azoospermia induced by other chemotherapeutic agents. A high number of BEACOPP, COPP/ABVD, OPP/ABVD or MOPP cycles (≥6) induced a permanent absence of sperm in the seminal fluid, while even following a low number of cycles (<6), spermatogenesis only recovered after 3-5 years and semen quality was highly impaired. LIMITATIONS, REASONS FOR CAUTION: The study type (retrospective) and the low caseload and varying time of the follow-up do not permit any firm conclusions to be drawn about the recovery of spermatogenesis after BEACOPP or other combined therapies, or the identification of any risk factors for testicular function in treated patients. WIDER IMPLICATIONS OF THE FINDINGS: The pretreatment semen parameters of HL patients in this study were better than some results reported in the literature, with a higher percentage of normozoospermic patients. Strengths of this study were the large caseload of HL patients and a high degree of consistency in semen analysis, as all parameters were assessed in the same laboratory. Following the azoospermia induced by different chemotherapeutic protocols, spermatogenesis may take several years to recover. Awareness of this issue will enable oncologists to better inform patients about the possibility of recovering fertility post-treatment and also demonstrates the importance of semen cryobanking before beginning any cancer treatment. STUDY FUNDING/COMPETING INTERESTS: Supported by a grant from the Italian Ministry of Education and Research (MIUR-PRIN) and the University of Rome 'La Sapienza' Faculty of Medicine. The authors have no conflicts of interest.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversos , Doença de Hodgkin/patologia , Infertilidade Masculina/induzido quimicamente , Espermatogênese/efeitos dos fármacos , Espermatozoides/efeitos dos fármacos , Protocolos de Quimioterapia Combinada Antineoplásica/administração & dosagem , Bleomicina/administração & dosagem , Bleomicina/efeitos adversos , Ciclofosfamida/administração & dosagem , Ciclofosfamida/efeitos adversos , Dacarbazina/administração & dosagem , Dacarbazina/efeitos adversos , Doxorrubicina/administração & dosagem , Doxorrubicina/efeitos adversos , Etoposídeo/administração & dosagem , Etoposídeo/efeitos adversos , Doença de Hodgkin/complicações , Doença de Hodgkin/tratamento farmacológico , Humanos , Infertilidade Masculina/complicações , Estudos Longitudinais , Masculino , Prednisona/administração & dosagem , Prednisona/efeitos adversos , Procarbazina/administração & dosagem , Procarbazina/efeitos adversos , Estudos Retrospectivos , Análise do Sêmen , Espermatozoides/patologia , Vimblastina/administração & dosagem , Vimblastina/efeitos adversos , Vincristina/administração & dosagem , Vincristina/efeitos adversos
12.
Clin Chim Acta ; 439: 107-11, 2015 Jan 15.
Artigo em Inglês | MEDLINE | ID: mdl-25451946

RESUMO

BACKGROUND: Urinary cytology (Ucytol), which is performed in pathology laboratories on fixed and stained samples, represents the gold standard for the identification of atypical/malignant urothelial cells (A/MUC) due to urothelial carcinoma. In this paper we describe three patients in whom A/MUC, due to a bladder carcinoma, were identified with conventional urine sediment (Used) examination on unfixed and unstained samples. METHODS: Included are urine samples prepared with conventional and standardized techniques as currently used in general clinical laboratories. Samples were examined with phase contrast microscopy. A/MUC were identified according to the criteria currently used for Ucytol. RESULTS: A/MUC (i.e., cells with unusual and pleomorphic size and shape, increased nuclear/cytoplasmic ratio, increased number of nuclei, irregular nuclear borders and irregular chromatin patterns, either isolated or in clusters) were identified in the urine of three patients, all of whom were found to have bladder carcinoma by cystoscopy. CONCLUSIONS: At variance with the common and widespread view, A/MUC can also be identified with conventional Used examination, even though Ucytol still represents the gold standard method.


Assuntos
Carcinoma de Células de Transição/patologia , Carcinoma de Células de Transição/urina , Microscopia de Contraste de Fase , Neoplasias da Bexiga Urinária/patologia , Neoplasias da Bexiga Urinária/urina , Idoso , Carcinoma de Células de Transição/diagnóstico , Humanos , Masculino , Pessoa de Meia-Idade , Sensibilidade e Especificidade , Neoplasias da Bexiga Urinária/diagnóstico
14.
Q J Nucl Med Mol Imaging ; 53(5): 513-9, 2009 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-19910904

RESUMO

Thyroid cancer is the most common malignant cancer of the endocrine system. Treatment for well differentiated forms include surgery and radioactive iodine ablation. When cancer cells exhibit a less differentiated phenotype they may no longer be able to accumulate iodine, making 131-I administration ineffective. Recent studies have demonstrated the important role of therapeutic agents that have redifferentiating potential, leading to reactivation and expression of thyrocyte-specific genes, including those responsible for iodine uptake. This review will discuss the results of the most recent studies on drugs with redifferentiating properties and their application in patients with radioiodine refractory thyroid cancer.


Assuntos
Antineoplásicos/farmacologia , Diferenciação Celular/efeitos dos fármacos , Neoplasias da Glândula Tireoide/metabolismo , Neoplasias da Glândula Tireoide/patologia , Antineoplásicos/uso terapêutico , Humanos , Radioisótopos do Iodo/metabolismo , Radioisótopos do Iodo/uso terapêutico , Neoplasias da Glândula Tireoide/tratamento farmacológico , Neoplasias da Glândula Tireoide/radioterapia
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