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1.
Artigo em Inglês | MEDLINE | ID: mdl-38765530

RESUMO

Objective: Seminal cryopreservation causes significant damage to the sperm; therefore, different methods of cryopreservation have been studied. The aim of the study was to compare the effects of density gradient processing and washing/centrifugation with seminal plasma removal for cryopreservation in semen parameters. Methods: Seminal samples of 26 normozoospermic patients were divided into 3 parts: with seminal plasma; after washing/centrifugation; and after selection through density gradient. The samples were cryopreserved for at least two weeks. Motility, sperm count, morphology and viability were evaluated before cryopreservation and after thawing. Results: Density gradient processing selected motile and viable sperm with normal morphology in fresh samples (p<0.05). Cryopreservation negatively affected all sperm parameters regardless of the processing performed, and even if the sperm recovery was lower in the density gradient after the thawing, progressive motility, total motility, viability and morphology remained higher (p<0.05). Conclusion: Cryopreservation significantly compromises sperm parameters (motility, morphology, viability). In normozoospermic patients, the density gradients select better quality spermatozoa compared to other processing methods; this benefit was kept after thawing.


Assuntos
Criopreservação , Preservação do Sêmen , Adulto , Humanos , Masculino , Criopreservação/métodos , Sêmen , Análise do Sêmen , Preservação do Sêmen/métodos , Motilidade dos Espermatozoides , Fatores de Tempo
2.
Artigo em Inglês | MEDLINE | ID: mdl-38431891

RESUMO

INTRODUCTION: Suicide is a worldwide health concern and up to date there is no good predictor of it except a previous suicide attempt. Therefore, there are increasing efforts in the understanding of which factors, genetic or environmental, are associated with suicide behaviour. OBJECTIVE: To review evidence of the effect of childhood trauma and impulsivity on suicidal behavior through a systematic review and meta-analysis. METHODS: Searches were conducted on the 12th of June 2021 in the PubMed, Scopus, and Web of Science databases. Two reviewers evaluated each record for eligibility and discussed upon disagreement, when no consensus was reached, a third reviewer was involved to make a decision. RESULTS: A total of 11,530 records were identified through the searches. After duplicates were removed, 6,595 records remained to be screened. The full text was sought for 1,561 records. Our qualitative synthesis included 22 studies, from which 9 were included in the meta-analyses. We found a significant effect of sexual abuse, physical abuse, emotional abuse and physical neglect on suicide attempts in the prisoners, and Substance Use Diorder (SUD) subgroups. Moreover, there was a significant effect of Childhood Trauma Questionnaire (CTQ) total score and emotional neglect dimension for all the subgroups. CONCLUSION: The present study has provided an overview of the state-of-the-art research on childhood trauma and impulsivity and their association with suicidal behavior and quantified their effects on suicide attempts. Hopefully this evidence will be considered in future research and harnessed for clinical gain in detection and treatment of suicide behaviour.

3.
Rev. bras. ginecol. obstet ; 46: e, 2024. tab, graf
Artigo em Inglês | LILACS-Express | LILACS | ID: biblio-1559547

RESUMO

Abstract Objective: Seminal cryopreservation causes significant damage to the sperm; therefore, different methods of cryopreservation have been studied. The aim of the study was to compare the effects of density gradient processing and washing/centrifugation with seminal plasma removal for cryopreservation in semen parameters. Methods: Seminal samples of 26 normozoospermic patients were divided into 3 parts: with seminal plasma; after washing/centrifugation; and after selection through density gradient. The samples were cryopreserved for at least two weeks. Motility, sperm count, morphology and viability were evaluated before cryopreservation and after thawing. Results: Density gradient processing selected motile and viable sperm with normal morphology in fresh samples (p<0.05). Cryopreservation negatively affected all sperm parameters regardless of the processing performed, and even if the sperm recovery was lower in the density gradient after the thawing, progressive motility, total motility, viability and morphology remained higher (p<0.05). Conclusion: Cryopreservation significantly compromises sperm parameters (motility, morphology, viability). In normozoospermic patients, the density gradients select better quality spermatozoa compared to other processing methods; this benefit was kept after thawing.

4.
J Oncol Pharm Pract ; 29(8): 1862-1867, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-36659825

RESUMO

INTRODUCTION: The handling of antineoplastic drugs should follow strict supervision and safety rules to minimize the occupational exposure risks to professionals involved. The external surface contamination of drug vials is recognized as a health risk. So, our goal was to determine if there is residual contamination on the vials and containers surface of the antineoplastic drugs doxorubicin (DOX) and cyclophosphamide (CP). METHODS: A cross-sectional study was conducted. Samples were collected using a uniform sampling procedure on the inner surfaces of the packages/boxes and the outer surfaces of the vials. The analyzes were executed by high-performance liquid chromatography/mass spectrometry (UHPLC-MS/MS). RESULTS: A total of 209 samples were analyzed, 66 of CP and 143 of DOX. CP levels were detected in nine samples (13.63%), three were below the lower limit of quantification (LLQ) and the other six had contamination levels ranging from 1.24 to 28.04 ng/filter. DOX levels were detected in 36 samples (25.17%), two were below the LLQ and the others had levels between 1.32 and 664.84 ng/filter. The majority of samples with residual contamination were in vials (80.0%), however, boxes also showed contamination. CONCLUSIONS: The results revealed the presence of residual contamination in the vials and packages of CP and DOX drugs. Although the residues found in each sample are small, special care should be taken in the handling and disposal of the antineoplastic drugs. The use of personal protective equipment is fundamental while handling the vials and packaging of cytotoxic drugs.


Assuntos
Antineoplásicos , Exposição Ocupacional , Humanos , Espectrometria de Massas em Tandem , Estudos Transversais , Antineoplásicos/análise , Ciclofosfamida/análise , Doxorrubicina , Embalagem de Medicamentos , Exposição Ocupacional/prevenção & controle , Exposição Ocupacional/análise , Contaminação de Equipamentos , Monitoramento Ambiental/métodos , Contaminação de Medicamentos/prevenção & controle
5.
Clin. biomed. res ; 43(1): 39-46, 2023.
Artigo em Inglês | LILACS | ID: biblio-1435949

RESUMO

Introduction: To analyze the factors (socio-demographic, clinical, prenatal care, delivery, postpartum data and anthropometric measures) associated with the birth of small for gestational age newborns.Methods: A cross-sectional study was performed with 15 years old or younger postpartum adolescents divided into small-for-gestational-age newborn (SGA) and non-small-for-gestational age newborn groups (NSGA). Socio-demographic, clinical, prenatal care, delivery, postpartum data and anthropometric measures (triceps skinfold (TS), and mid-arm circumference, (MAC)) were collected.Results: 8,153 women gave birth at the obstetric ward and 364 (4.46%) ≤ 15 years old adolescents were enrolled in the study. The proportion of SGA newborns was 34.61%. The SGA group attended fewer prenatal visits (p = 0.037), had a higher prevalence of nutritional status classified as "very low weight" (p < 0.001) and vaginal delivery (p = 0.023), compared to the NSGA group. The nutritional status and vaginal delivery remained significant even after adjustment for confounders. The prevalence risk for SGA birth was 30% higher in the group of mothers with nutritional status classified as "very low weight" (odds ratio 1.30, 95% confidence interval 1.13 to 1.50) (p < 0.001).Conclusions: 15.4% of adolescents ≤ 15 years of age had an arm circumference compatible with the "very low weight" condition, demonstrating the high prevalence of poor maternal nutritional status in this group. The birth of SGA among adolescents ≤ 15 years of age is independently associated with maternal nutritional status classified as "very low weight" by the mid-arm circumference measures (MAC).


Assuntos
Humanos , Feminino , Adolescente , Estado Nutricional , Mães Adolescentes/estatística & dados numéricos , Recém-Nascido Pequeno para a Idade Gestacional/crescimento & desenvolvimento , Retardo do Crescimento Fetal/etiologia
6.
Rev. bras. ginecol. obstet ; 44(8): 797-801, Aug. 2022.
Artigo em Inglês | LILACS | ID: biblio-1407578

RESUMO

Abstract Residency is still considered the gold standard for quality medical training, and acquiring a professional identity as a specialist is one of its central elements. Residents obtain this identity through both the educational environment and direct interaction with peers and supervisors. However, modifications in health care and educational routines during the recent coronavirus disease 2019 (COVID-19) pandemic have significantly impaired these channels. This study is part of a qualitative research project to analyze professional identity formation in a medical residency program in obstetrics and gynecology at a public hospital in southern Brazil. The authors conducted 28 semi-structured interviews with medical residents and preceptors, as well as a focus group with the residents, which was recorded, transcribed, and analyzed in an effort to construct major analytical categories. Restricted movement and physical contact have forced the use of alternative means of interpersonal interaction, such as communication through social media or instant messaging applications. This has also affected educational activities, such as morning rounds, lectures, and seminars. These changes represent a significant impact, especially in Brazil, where physical proximity is an important cultural feature, even in the work and school environments. We speculate that this new type of virtual interaction will also affect the formation of professional identity among obstetrician-gynecologists. These findings suggest that medical residency programs should be attentive to changes in resident training to ensure that the specialist profile and the expected skills, which are consolidated over many years, are not lost.


Resumo A residência médica ainda é considerada o padrão-ouro para a formação médica de qualidade, sendo o processo de construção da identidade profissional de um médico especialista um de seus elementos centrais. Os residentes obtêm essa identidade, entre outros fatores, por meio do ambiente educacional e da interação direta com colegas e supervisores. No entanto, as modificações nas rotinas assistenciais e educacionais durante a recente pandemia de coronavirus disease 2019 (Covid-19) prejudicaram significativamente esses canais. Este estudo faz parte de um projeto de pesquisa qualitativa com o objetivo de analisar a formação da identidade profissional em um programa de residência médica em ginecologia e obstetrícia em um hospital público do sul do Brasil. Os autores realizaram 28 entrevistas semiestruturadas com médicos residentes e preceptores, bem como um grupo focal com residentes. Tanto as entrevistas como as reuniões com o grupo focal foram gravadas, transcritas e analisadas no esforço de construir categorias analíticas. Foi identificado que o movimento restrito e o contato físico forçaram o uso de meios alternativos de interação interpessoal, como a comunicação por meio de mídias sociais ou aplicativos de mensagens instantâneas. Isso também afetou as atividades educacionais, como as rounds, palestras e seminários. Essas mudanças representam um impacto significativo, principalmente no Brasil, onde a proximidade física é uma importante característica cultural, mesmo em ambientes de trabalho e de estudo. Conjectura-se que esse novo tipo de interação virtual também afetará a formação da identidade profissional entre os ginecologistas-obstetras. Esses achados sugerem que os programas de residência médica devem estar atentos às mudanças na formação dos residentes para garantir que o perfil do especialista e as competências esperadas, consolidadas ao longo de muitos anos, não sejam perdidos.


Assuntos
Identificação Social , Internato e Residência
7.
Rev Bras Ginecol Obstet ; 44(8): 797-801, 2022 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-35767999

RESUMO

Residency is still considered the gold standard for quality medical training, and acquiring a professional identity as a specialist is one of its central elements. Residents obtain this identity through both the educational environment and direct interaction with peers and supervisors. However, modifications in health care and educational routines during the recent coronavirus disease 2019 (COVID-19) pandemic have significantly impaired these channels. This study is part of a qualitative research project to analyze professional identity formation in a medical residency program in obstetrics and gynecology at a public hospital in southern Brazil. The authors conducted 28 semi-structured interviews with medical residents and preceptors, as well as a focus group with the residents, which was recorded, transcribed, and analyzed in an effort to construct major analytical categories. Restricted movement and physical contact have forced the use of alternative means of interpersonal interaction, such as communication through social media or instant messaging applications. This has also affected educational activities, such as morning rounds, lectures, and seminars. These changes represent a significant impact, especially in Brazil, where physical proximity is an important cultural feature, even in the work and school environments. We speculate that this new type of virtual interaction will also affect the formation of professional identity among obstetrician-gynecologists. These findings suggest that medical residency programs should be attentive to changes in resident training to ensure that the specialist profile and the expected skills, which are consolidated over many years, are not lost.


A residência médica ainda é considerada o padrão-ouro para a formação médica de qualidade, sendo o processo de construção da identidade profissional de um médico especialista um de seus elementos centrais. Os residentes obtêm essa identidade, entre outros fatores, por meio do ambiente educacional e da interação direta com colegas e supervisores. No entanto, as modificações nas rotinas assistenciais e educacionais durante a recente pandemia de coronavirus disease 2019 (Covid-19) prejudicaram significativamente esses canais. Este estudo faz parte de um projeto de pesquisa qualitativa com o objetivo de analisar a formação da identidade profissional em um programa de residência médica em ginecologia e obstetrícia em um hospital público do sul do Brasil. Os autores realizaram 28 entrevistas semiestruturadas com médicos residentes e preceptores, bem como um grupo focal com residentes. Tanto as entrevistas como as reuniões com o grupo focal foram gravadas, transcritas e analisadas no esforço de construir categorias analíticas. Foi identificado que o movimento restrito e o contato físico forçaram o uso de meios alternativos de interação interpessoal, como a comunicação por meio de mídias sociais ou aplicativos de mensagens instantâneas. Isso também afetou as atividades educacionais, como as rounds, palestras e seminários. Essas mudanças representam um impacto significativo, principalmente no Brasil, onde a proximidade física é uma importante característica cultural, mesmo em ambientes de trabalho e de estudo. Conjectura-se que esse novo tipo de interação virtual também afetará a formação da identidade profissional entre os ginecologistas-obstetras. Esses achados sugerem que os programas de residência médica devem estar atentos às mudanças na formação dos residentes para garantir que o perfil do especialista e as competências esperadas, consolidadas ao longo de muitos anos, não sejam perdidos.


Assuntos
COVID-19 , Ginecologia , Internato e Residência , Obstetrícia , Feminino , Ginecologia/educação , Humanos , Obstetrícia/educação , Pandemias , Gravidez
8.
Rev. bras. ginecol. obstet ; 44(3): 251-257, Mar. 2022. tab, graf
Artigo em Inglês | LILACS | ID: biblio-1387876

RESUMO

Abstract Objective To evaluate the reproductive and histological characteristics of fresh cultured ovarian tissue from transgender male patients. Methods An in vitro pilot study in which samples were collected during sex reassignment surgery for transgender male patients. The ovarian cortex was cut into fragments of 2 mm, 3mm, and 4 mm, and placed in a 96-well plate suitable for cultivation at days 0, 2, 4, 6, and 8, when the histology was analyzed. Results Stromal hyperplasia was observed in all samples, and it was not associated with the obtainment of primordial or primary follicles. Peripheral reduction in cell count was also a recurrent finding. Primordial and primary follicles were identified with a heterogeneous pattern in fragments from the same patient and from different patients, and follicles in more advanced stages of development (secondary and antral) were not found. There was an association between the diameter of the ovarian fragments and the identification of primary follicles (p=0.036). The number of days in culture was associated with histological signs of tissue damaging in the fragments (p=0.002). The total number of follicles identified in the samples with 2mm in diameter was significantly lower than in those that measured 4mm in diameter (p=0.031). Conclusion A diameter of 4mm is suitable for ovarian tissue culture with the benefit of ease of handling. Even after prolonged exposure to testosterone, the ovarian fragments presented primordial and primary follicles, maintaining viability throughout the days they were exposed to the culture. Freezing the ovarian cortex of transgender patients who will undergo surgery for gender reassignment would be an interesting option, in the future, for the preservation of fertility.


Resumo Objetivo Avaliar as características reprodutivas e histológicas de tecido ovariano cultivado a fresco de pacientes transexuais masculinos. Métodos Estudo experimental in vitro e piloto, no qual amostras foram coletadas durante a cirurgia de redesignação de sexo para pacientes transexuais masculinos. O córtex ovariano foi cortado em fragmentos de 2mm, 3mm, e 4mm, e colocado em placa de 96 poços própria para cultivo nos dias 0, 2, 4, 6 e 8, quando a histologia foi analisada. Resultados Hiperplasia estromal foi observada em todas as amostras, e não esteve associada à obtenção de folículos primordiais ou primários. A redução periférica no número de células também foi um achado recorrente. Folículos primordiais e primários foramidentificados com padrão heterogêneo emfragmentos domesmo paciente e em fragmentos de pacientes diferentes, não sendo encontrados folículos em estágios mais avançados de desenvolvimento (secundários e antrais). Houve associação entre o diâmetro dos fragmentos ovarianos e a identificação dos folículos primários (p=0,036). O número de dias de cultura esteve associado a sinais histológicos de lesão tecidual nos fragmentos (p=0,002). O número total de folículos identificados nas amostras de 2mm de diâmetro foi significativamente menor do que nas de 4mm de diâmetro (p=0,031). Conclusão O diâmetro de 4mm parece ser mais adequado para a cultura de tecido ovariano com a vantagem de fácil manejo. Mesmo após exposição prolongada à testosterona, os fragmentos ovarianos apresentavam folículos primordiais e primários, e manteve a viabilidade ao longo dos dias de exposição à cultura. No futuro, o congelamento da cortical do ovário de pacientes transgêneros que se submeterão à cirurgia de redesignação sexual poderia ser uma opção interessante para a preservação da fertilidade.


Assuntos
Humanos , Masculino , Ovário , Técnicas de Cultura de Tecidos , Cirurgia de Readequação Sexual , Preservação da Fertilidade , Reserva Ovariana
9.
Rev Bras Ginecol Obstet ; 44(3): 251-257, 2022 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-35139567

RESUMO

OBJECTIVE: To evaluate the reproductive and histological characteristics of fresh cultured ovarian tissue from transgender male patients. METHODS: An in vitro pilot study in which samples were collected during sex reassignment surgery for transgender male patients. The ovarian cortex was cut into fragments of 2 mm, 3 mm, and 4 mm, and placed in a 96-well plate suitable for cultivation at days 0, 2, 4, 6, and 8, when the histology was analyzed. RESULTS: Stromal hyperplasia was observed in all samples, and it was not associated with the obtainment of primordial or primary follicles. Peripheral reduction in cell count was also a recurrent finding. Primordial and primary follicles were identified with a heterogeneous pattern in fragments from the same patient and from different patients, and follicles in more advanced stages of development (secondary and antral) were not found. There was an association between the diameter of the ovarian fragments and the identification of primary follicles (p = 0.036). The number of days in culture was associated with histological signs of tissue damaging in the fragments (p = 0.002). The total number of follicles identified in the samples with 2 mm in diameter was significantly lower than in those that measured 4 mm in diameter (p = 0.031). CONCLUSION: A diameter of 4 mm is suitable for ovarian tissue culture with the benefit of ease of handling. Even after prolonged exposure to testosterone, the ovarian fragments presented primordial and primary follicles, maintaining viability throughout the days they were exposed to the culture. Freezing the ovarian cortex of transgender patients who will undergo surgery for gender reassignment would be an interesting option, in the future, for the preservation of fertility.


OBJETIVO: Avaliar as características reprodutivas e histológicas de tecido ovariano cultivado a fresco de pacientes transexuais masculinos. MéTODOS: Estudo experimental in vitro e piloto, no qual amostras foram coletadas durante a cirurgia de redesignação de sexo para pacientes transexuais masculinos. O córtex ovariano foi cortado em fragmentos de 2 mm, 3 mm, e 4 mm, e colocado em placa de 96 poços própria para cultivo nos dias 0, 2, 4, 6 e 8, quando a histologia foi analisada. RESULTADOS: Hiperplasia estromal foi observada em todas as amostras, e não esteve associada à obtenção de folículos primordiais ou primários. A redução periférica no número de células também foi um achado recorrente. Folículos primordiais e primários foram identificados com padrão heterogêneo em fragmentos do mesmo paciente e em fragmentos de pacientes diferentes, não sendo encontrados folículos em estágios mais avançados de desenvolvimento (secundários e antrais). Houve associação entre o diâmetro dos fragmentos ovarianos e a identificação dos folículos primários (p = 0,036). O número de dias de cultura esteve associado a sinais histológicos de lesão tecidual nos fragmentos (p = 0,002). O número total de folículos identificados nas amostras de 2 mm de diâmetro foi significativamente menor do que nas de 4 mm de diâmetro (p = 0,031). CONCLUSãO: O diâmetro de 4 mm parece ser mais adequado para a cultura de tecido ovariano com a vantagem de fácil manejo. Mesmo após exposição prolongada à testosterona, os fragmentos ovarianos apresentavam folículos primordiais e primários, e manteve a viabilidade ao longo dos dias de exposição à cultura. No futuro, o congelamento da cortical do ovário de pacientes transgêneros que se submeterão à cirurgia de redesignação sexual poderia ser uma opção interessante para a preservação da fertilidade.


Assuntos
Preservação da Fertilidade , Pessoas Transgênero , Transexualidade , Feminino , Fertilidade , Humanos , Masculino , Ovário/patologia , Projetos Piloto
10.
JBRA Assist Reprod ; 26(2): 261-266, 2022 04 17.
Artigo em Inglês | MEDLINE | ID: mdl-34786905

RESUMO

OBJECTIVE: Approximately 15% of the couples suffer from infertility. Half of the cases of infertility are due to male factors. Several sperm function tests have been proposed to evaluate male fertility, but sperm analysis is still the first and most important diagnostic test for male infertility. The prognostic value of semen characteristics such as concentration, morphology and motility markers are often confused with male infertility. Evaluation of seminal parameters and classification for normality remains a frequent topic of discussion. METHODS: This study evaluated 477 semen samples from men undergoing investigation or infertility treatment between 2011 and 2015. RESULTS: The spermograms of 401 patients were deemed abnormal based on the 1999 World Health Organization (WHO) criteria; the number changed to 223 when the spermograms were assessed based on the 2010 WHO criteria and to 200 when Total Motile Sperm Count (TMSC) was used as the criterion. Sperm morphology was the item in the criteria that most significantly changed spermogram classification. Normality parameters became less rigid from 1999 to 2010, thereby significantly changing the proportion of individuals no longer described as infertile/subfertile. CONCLUSIONS: The classification based on TMSC could not differentiate between fertile and infertile subjects for not taking sperm morphology into account. Nevertheless, it may be helpful in cases where intrauterine insemination is indicated.


Assuntos
Infertilidade Masculina , Motilidade dos Espermatozoides , Humanos , Infertilidade Masculina/diagnóstico , Masculino , Análise do Sêmen , Contagem de Espermatozoides , Espermatozoides , Organização Mundial da Saúde
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