Higher environmental temperatures promote acceleration of spermatogenesis in vivo in mice (Mus musculus)
Temperature is considered a crucial modulator of reproductive activity and testis homeostasis. It is well known that elevated temperatures cause several effects on testicular components, particularly on germ cells, which might lead to the impairment of spermatogenesis and loss of male fertility. The...
| Autor principal: | Costa, Guilherme M.J. |
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| Outros Autores: | Lacerda, Samyra Maria Santos N.Nassif, Figueiredo, Andre´ Felipe Almeida, Leal, Marcelo Castro, Rezende-Neto, José V., França, Luiz Renato de |
| Grau: | Artigo |
| Idioma: | English |
| Publicado em: |
Journal of Thermal Biology
2020
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| Acesso em linha: |
https://repositorio.inpa.gov.br/handle/1/16845 |
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oai:repositorio:1-16845 |
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oai:repositorio:1-16845 Higher environmental temperatures promote acceleration of spermatogenesis in vivo in mice (Mus musculus) Costa, Guilherme M.J. Lacerda, Samyra Maria Santos N.Nassif Figueiredo, Andre´ Felipe Almeida Leal, Marcelo Castro Rezende-Neto, José V. França, Luiz Renato de Thymidine Testosterone Animals Cell Animals Experiment Animals Tissue Apoptosis Cell Count Controlled Study Environmental Temperature Germ Cell High Temperature Histology Immunoperoxidase Staining In Vivo Study Leydig Cell Low Temperature Male Morphometry Mouse Nonhuman Sertoli Cell Sexual Maturation Spermatogenesis Animals Blood Body Temperature Cytology Heat Heat Tolerance Infertility, Male Metabolism Physiology Spermatocyte Spermatozoon Testis Ultrastructure Animal Apoptosis Body Temperature Hot Temperature Infertility, Male Male Mice Sertoli Cells Spermatocytes Spermatogenesis Spermatozoa Testis Testosterone Thermotolerance Temperature is considered a crucial modulator of reproductive activity and testis homeostasis. It is well known that elevated temperatures cause several effects on testicular components, particularly on germ cells, which might lead to the impairment of spermatogenesis and loss of male fertility. The present study aimed to evaluate the effects of different environmental temperatures on several morphofunctional testis parameters, with emphasis on duration of spermatogenesis and spermatogenic efficiency. Thirty sexually mature Swiss mice (Mus musculus) were allocated in three different experimental groups, being kept in vivarium for three weeks at 16 °C, 23 °C (control group) and 32 °C. In order to estimate the duration of spermatogenesis, three animals per each group received intraperitoneal injections of tritiated thymidine and the testes were perfused-fixed and routinely processed for histological, morphometrical and immunoperoxidase analyses. Although the lower temperature (16 °C) did not change most of the evaluated testicular parameters, our findings showed that higher environmental temperature (32 °C) is able to alter important testis parameters, resulting for instance in acceleration of spermatogenesis, alterations in the stages frequencies, increased number of germ and Leydig cells apoptosis and reduced Sertoli cell and spermatogenic efficiencies. As in many conditions infertile men exhibit higher mean scrotal temperature, we believe that experimental studies with mice involving temperature might represent an interesting approach to better understand the mechanisms related to human testis function and sperm production. © 2018 Elsevier Ltd 2020-06-15T21:36:43Z 2020-06-15T21:36:43Z 2018 Artigo https://repositorio.inpa.gov.br/handle/1/16845 10.1016/j.jtherbio.2018.07.010 en Volume 77, Pags. 14-23 Restrito Journal of Thermal Biology |
| institution |
Instituto Nacional de Pesquisas da Amazônia - Repositório Institucional |
| collection |
INPA-RI |
| language |
English |
| topic |
Thymidine Testosterone Animals Cell Animals Experiment Animals Tissue Apoptosis Cell Count Controlled Study Environmental Temperature Germ Cell High Temperature Histology Immunoperoxidase Staining In Vivo Study Leydig Cell Low Temperature Male Morphometry Mouse Nonhuman Sertoli Cell Sexual Maturation Spermatogenesis Animals Blood Body Temperature Cytology Heat Heat Tolerance Infertility, Male Metabolism Physiology Spermatocyte Spermatozoon Testis Ultrastructure Animal Apoptosis Body Temperature Hot Temperature Infertility, Male Male Mice Sertoli Cells Spermatocytes Spermatogenesis Spermatozoa Testis Testosterone Thermotolerance |
| spellingShingle |
Thymidine Testosterone Animals Cell Animals Experiment Animals Tissue Apoptosis Cell Count Controlled Study Environmental Temperature Germ Cell High Temperature Histology Immunoperoxidase Staining In Vivo Study Leydig Cell Low Temperature Male Morphometry Mouse Nonhuman Sertoli Cell Sexual Maturation Spermatogenesis Animals Blood Body Temperature Cytology Heat Heat Tolerance Infertility, Male Metabolism Physiology Spermatocyte Spermatozoon Testis Ultrastructure Animal Apoptosis Body Temperature Hot Temperature Infertility, Male Male Mice Sertoli Cells Spermatocytes Spermatogenesis Spermatozoa Testis Testosterone Thermotolerance Costa, Guilherme M.J. Higher environmental temperatures promote acceleration of spermatogenesis in vivo in mice (Mus musculus) |
| topic_facet |
Thymidine Testosterone Animals Cell Animals Experiment Animals Tissue Apoptosis Cell Count Controlled Study Environmental Temperature Germ Cell High Temperature Histology Immunoperoxidase Staining In Vivo Study Leydig Cell Low Temperature Male Morphometry Mouse Nonhuman Sertoli Cell Sexual Maturation Spermatogenesis Animals Blood Body Temperature Cytology Heat Heat Tolerance Infertility, Male Metabolism Physiology Spermatocyte Spermatozoon Testis Ultrastructure Animal Apoptosis Body Temperature Hot Temperature Infertility, Male Male Mice Sertoli Cells Spermatocytes Spermatogenesis Spermatozoa Testis Testosterone Thermotolerance |
| description |
Temperature is considered a crucial modulator of reproductive activity and testis homeostasis. It is well known that elevated temperatures cause several effects on testicular components, particularly on germ cells, which might lead to the impairment of spermatogenesis and loss of male fertility. The present study aimed to evaluate the effects of different environmental temperatures on several morphofunctional testis parameters, with emphasis on duration of spermatogenesis and spermatogenic efficiency. Thirty sexually mature Swiss mice (Mus musculus) were allocated in three different experimental groups, being kept in vivarium for three weeks at 16 °C, 23 °C (control group) and 32 °C. In order to estimate the duration of spermatogenesis, three animals per each group received intraperitoneal injections of tritiated thymidine and the testes were perfused-fixed and routinely processed for histological, morphometrical and immunoperoxidase analyses. Although the lower temperature (16 °C) did not change most of the evaluated testicular parameters, our findings showed that higher environmental temperature (32 °C) is able to alter important testis parameters, resulting for instance in acceleration of spermatogenesis, alterations in the stages frequencies, increased number of germ and Leydig cells apoptosis and reduced Sertoli cell and spermatogenic efficiencies. As in many conditions infertile men exhibit higher mean scrotal temperature, we believe that experimental studies with mice involving temperature might represent an interesting approach to better understand the mechanisms related to human testis function and sperm production. © 2018 Elsevier Ltd |
| format |
Artigo |
| author |
Costa, Guilherme M.J. |
| author2 |
Lacerda, Samyra Maria Santos N.Nassif Figueiredo, Andre´ Felipe Almeida Leal, Marcelo Castro Rezende-Neto, José V. França, Luiz Renato de |
| author2Str |
Lacerda, Samyra Maria Santos N.Nassif Figueiredo, Andre´ Felipe Almeida Leal, Marcelo Castro Rezende-Neto, José V. França, Luiz Renato de |
| title |
Higher environmental temperatures promote acceleration of spermatogenesis in vivo in mice (Mus musculus) |
| title_short |
Higher environmental temperatures promote acceleration of spermatogenesis in vivo in mice (Mus musculus) |
| title_full |
Higher environmental temperatures promote acceleration of spermatogenesis in vivo in mice (Mus musculus) |
| title_fullStr |
Higher environmental temperatures promote acceleration of spermatogenesis in vivo in mice (Mus musculus) |
| title_full_unstemmed |
Higher environmental temperatures promote acceleration of spermatogenesis in vivo in mice (Mus musculus) |
| title_sort |
higher environmental temperatures promote acceleration of spermatogenesis in vivo in mice (mus musculus) |
| publisher |
Journal of Thermal Biology |
| publishDate |
2020 |
| url |
https://repositorio.inpa.gov.br/handle/1/16845 |
| _version_ |
1787143553573453824 |
| score |
11.674752 |