Sperm characteristics in a sample of healthy adolescents in São Paulo, Brazil
Autor(a) principal: | |
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Data de Publicação: | 2002 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Cadernos de Saúde Pública |
Texto Completo: | https://cadernos.ensp.fiocruz.br/ojs/index.php/csp/article/view/1685 |
Resumo: | The article presents preliminary data from a prospective investigation in a sample of healthy 14-17-year-old students from a technical school in Sao Paulo, Brazil. Ninety-six Tanner stage 5 and thirty-one Tanner stage 4 adolescents were evaluated: testicular volume was measured using a Prader orchidometer, and semen analysis was performed according to standard procedures. Median testicular volume was 20.0ml among Tanner 5 students and 15.0ml in Tanner 4 students in both the right and left testes. No significant differences were found in sperm volume or motility. Median concentration was 66.0 million/ml for Tanner 5 and 47.0 million/ml for Tanner 4 subjects. Morphological patterns showed abnormal forms in 81.9% of Tanner 5 and 93.6% of Tanner 4 adolescents. Oligospermia (sperm concentration < 5 million/ml) was observed in 7.3% of Tanner stage 5 and 12.9% of Tanner stage 4 individuals. Azoospermia was observed in 3 students (1.8%), with counts less than 1.0 in 8 students (4.8%). The authors discuss the observed results, analyzing the potential implications arising from biological development and potential environmental exposures. |
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Sperm characteristics in a sample of healthy adolescents in São Paulo, BrazilSpermatozoaSperm CountInfertilityEndocrine DisruptorsThe article presents preliminary data from a prospective investigation in a sample of healthy 14-17-year-old students from a technical school in Sao Paulo, Brazil. Ninety-six Tanner stage 5 and thirty-one Tanner stage 4 adolescents were evaluated: testicular volume was measured using a Prader orchidometer, and semen analysis was performed according to standard procedures. Median testicular volume was 20.0ml among Tanner 5 students and 15.0ml in Tanner 4 students in both the right and left testes. No significant differences were found in sperm volume or motility. Median concentration was 66.0 million/ml for Tanner 5 and 47.0 million/ml for Tanner 4 subjects. Morphological patterns showed abnormal forms in 81.9% of Tanner 5 and 93.6% of Tanner 4 adolescents. Oligospermia (sperm concentration < 5 million/ml) was observed in 7.3% of Tanner stage 5 and 12.9% of Tanner stage 4 individuals. Azoospermia was observed in 3 students (1.8%), with counts less than 1.0 in 8 students (4.8%). The authors discuss the observed results, analyzing the potential implications arising from biological development and potential environmental exposures.O artigo apresenta dados preliminares de um estudo prospectivo com uma amostra de alunos saudáveis variando de idade entre 14 e 17 anos, de uma escola técnica em São Paulo. Foram avaliados 96 adolescentes estágio Tanner 5 e 31 estágio Tanner 4: o volume testicular foi medido utilizando um orquidômetro de Prader, e o espermograma foi realizado de acordo com os procedimentos padronizados. O volume testicular mediano, tanto direito quanto esquerdo, era 20,0ml nos alunos Tanner 5 e 15,0ml nos alunos Tanner 4. Não foram constatadas diferenças significativas no volume ou motilidade espermática. A concentração mediana era 66,0 milhões/ml para Tanner 5 e 47,0 milhões/ml para Tanner 4. Os padrões morfológicos evidenciaram formas anormais em 81,9% dos adolescentes Tanner 5 e 93,6% dos Tanner 4. A oligospermia (concentração espermática < 5 milhões/ml) foi observada em 7,3% dos indivíduos Tanner 5 e 12,9% dos Tanner 4. A azoospermia foi observada em 3 alunos (1,8%), além de uma contagem abaixo de 1,0 em 8 alunos (4,8%). Os autores discutem os resultados observados, analisando as implicações para o desenvolvimento biológico a partir de possíveis exposições ambientais.Reports in Public HealthCadernos de Saúde Pública2002-04-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlapplication/pdfhttps://cadernos.ensp.fiocruz.br/ojs/index.php/csp/article/view/1685Reports in Public Health; Vol. 18 No. 2 (2002): March/AprilCadernos de Saúde Pública; v. 18 n. 2 (2002): Março/Abril1678-44640102-311Xreponame:Cadernos de Saúde Públicainstname:Fundação Oswaldo Cruz (FIOCRUZ)instacron:FIOCRUZenghttps://cadernos.ensp.fiocruz.br/ojs/index.php/csp/article/view/1685/3358https://cadernos.ensp.fiocruz.br/ojs/index.php/csp/article/view/1685/3359Mori, Marcos MitsuyoshiCedenho, Agnaldo PereiraKoifman, SergioSrougi, Miguelinfo:eu-repo/semantics/openAccess2024-03-06T15:26:34Zoai:ojs.teste-cadernos.ensp.fiocruz.br:article/1685Revistahttps://cadernos.ensp.fiocruz.br/ojs/index.php/csphttps://cadernos.ensp.fiocruz.br/ojs/index.php/csp/oaicadernos@ensp.fiocruz.br||cadernos@ensp.fiocruz.br1678-44640102-311Xopendoar:2024-03-06T13:01:58.729880Cadernos de Saúde Pública - Fundação Oswaldo Cruz (FIOCRUZ)true |
dc.title.none.fl_str_mv |
Sperm characteristics in a sample of healthy adolescents in São Paulo, Brazil |
title |
Sperm characteristics in a sample of healthy adolescents in São Paulo, Brazil |
spellingShingle |
Sperm characteristics in a sample of healthy adolescents in São Paulo, Brazil Mori, Marcos Mitsuyoshi Spermatozoa Sperm Count Infertility Endocrine Disruptors |
title_short |
Sperm characteristics in a sample of healthy adolescents in São Paulo, Brazil |
title_full |
Sperm characteristics in a sample of healthy adolescents in São Paulo, Brazil |
title_fullStr |
Sperm characteristics in a sample of healthy adolescents in São Paulo, Brazil |
title_full_unstemmed |
Sperm characteristics in a sample of healthy adolescents in São Paulo, Brazil |
title_sort |
Sperm characteristics in a sample of healthy adolescents in São Paulo, Brazil |
author |
Mori, Marcos Mitsuyoshi |
author_facet |
Mori, Marcos Mitsuyoshi Cedenho, Agnaldo Pereira Koifman, Sergio Srougi, Miguel |
author_role |
author |
author2 |
Cedenho, Agnaldo Pereira Koifman, Sergio Srougi, Miguel |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Mori, Marcos Mitsuyoshi Cedenho, Agnaldo Pereira Koifman, Sergio Srougi, Miguel |
dc.subject.por.fl_str_mv |
Spermatozoa Sperm Count Infertility Endocrine Disruptors |
topic |
Spermatozoa Sperm Count Infertility Endocrine Disruptors |
description |
The article presents preliminary data from a prospective investigation in a sample of healthy 14-17-year-old students from a technical school in Sao Paulo, Brazil. Ninety-six Tanner stage 5 and thirty-one Tanner stage 4 adolescents were evaluated: testicular volume was measured using a Prader orchidometer, and semen analysis was performed according to standard procedures. Median testicular volume was 20.0ml among Tanner 5 students and 15.0ml in Tanner 4 students in both the right and left testes. No significant differences were found in sperm volume or motility. Median concentration was 66.0 million/ml for Tanner 5 and 47.0 million/ml for Tanner 4 subjects. Morphological patterns showed abnormal forms in 81.9% of Tanner 5 and 93.6% of Tanner 4 adolescents. Oligospermia (sperm concentration < 5 million/ml) was observed in 7.3% of Tanner stage 5 and 12.9% of Tanner stage 4 individuals. Azoospermia was observed in 3 students (1.8%), with counts less than 1.0 in 8 students (4.8%). The authors discuss the observed results, analyzing the potential implications arising from biological development and potential environmental exposures. |
publishDate |
2002 |
dc.date.none.fl_str_mv |
2002-04-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://cadernos.ensp.fiocruz.br/ojs/index.php/csp/article/view/1685 |
url |
https://cadernos.ensp.fiocruz.br/ojs/index.php/csp/article/view/1685 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://cadernos.ensp.fiocruz.br/ojs/index.php/csp/article/view/1685/3358 https://cadernos.ensp.fiocruz.br/ojs/index.php/csp/article/view/1685/3359 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html application/pdf |
dc.publisher.none.fl_str_mv |
Reports in Public Health Cadernos de Saúde Pública |
publisher.none.fl_str_mv |
Reports in Public Health Cadernos de Saúde Pública |
dc.source.none.fl_str_mv |
Reports in Public Health; Vol. 18 No. 2 (2002): March/April Cadernos de Saúde Pública; v. 18 n. 2 (2002): Março/Abril 1678-4464 0102-311X reponame:Cadernos de Saúde Pública instname:Fundação Oswaldo Cruz (FIOCRUZ) instacron:FIOCRUZ |
instname_str |
Fundação Oswaldo Cruz (FIOCRUZ) |
instacron_str |
FIOCRUZ |
institution |
FIOCRUZ |
reponame_str |
Cadernos de Saúde Pública |
collection |
Cadernos de Saúde Pública |
repository.name.fl_str_mv |
Cadernos de Saúde Pública - Fundação Oswaldo Cruz (FIOCRUZ) |
repository.mail.fl_str_mv |
cadernos@ensp.fiocruz.br||cadernos@ensp.fiocruz.br |
_version_ |
1798943349663596544 |