Sperm counts in Asian men: reviewing the trend of past 50 years
Objective: To reveal the trend in alterations of sperm counts in Asian men over the past 50 years. Methods: This study reviewed all the published reports to unveil the specific pattern of alterations of sperm concentrations in Asian men from 1965 till 2015. The time-related changes in sperm concentr...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wolters Kluwer Medknow Publications
2018
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| Online Access: | http://psasir.upm.edu.my/id/eprint/73949/1/Sperm%20counts%20in%20Asian%20men%20reviewing%20the%20trend%20of%20past%2050%20years.pdf |
| _version_ | 1796979660567871488 |
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| author | Sengupta, Pallav Dutta, Sulagna Tusimin, Maiza Irez, Tulay Kulak, Elzbieta Krajewska |
| author_facet | Sengupta, Pallav Dutta, Sulagna Tusimin, Maiza Irez, Tulay Kulak, Elzbieta Krajewska |
| author_sort | Sengupta, Pallav |
| collection | UPM |
| description | Objective: To reveal the trend in alterations of sperm counts in Asian men over the past 50 years. Methods: This study reviewed all the published reports to unveil the specific pattern of alterations of sperm concentrations in Asian men from 1965 till 2015. The time-related changes in sperm concentration were studied using linear regression analyses. Results: The present study elucidated the trend using the reports from Carlsen et al (1965-1990) and non-Carlsen studies published until 2015, on fertile Asian men. In the reports of Carlsen et al., no overall declining trend in Asian men (r = 0.509, P = 0.760) was observed during this tenure, but non- Carsen reports showed a significant time-dependent decline of sperm concentration (r = -0.754, P = 0.005) in Asian men. This present review also showed a mild time-dependant decline in sperm concentration (-0.44×106/mL/year, 95% CI: -0.65 to -0.23; r = -0.473, P = 0.040) which accounted for an overall 22.17% decrease in past 50 years. Conclusions: This study brings to the forefront that sperm concentration among Asian men follows a mild declining trend over the period of 50 years, and further studies addressing the causes of this decline are required. |
| first_indexed | 2024-03-06T10:12:11Z |
| format | Article |
| id | upm.eprints-73949 |
| institution | Universiti Putra Malaysia |
| language | English |
| last_indexed | 2024-03-06T10:12:11Z |
| publishDate | 2018 |
| publisher | Wolters Kluwer Medknow Publications |
| record_format | dspace |
| spelling | upm.eprints-739492020-04-29T16:22:29Z http://psasir.upm.edu.my/id/eprint/73949/ Sperm counts in Asian men: reviewing the trend of past 50 years Sengupta, Pallav Dutta, Sulagna Tusimin, Maiza Irez, Tulay Kulak, Elzbieta Krajewska Objective: To reveal the trend in alterations of sperm counts in Asian men over the past 50 years. Methods: This study reviewed all the published reports to unveil the specific pattern of alterations of sperm concentrations in Asian men from 1965 till 2015. The time-related changes in sperm concentration were studied using linear regression analyses. Results: The present study elucidated the trend using the reports from Carlsen et al (1965-1990) and non-Carlsen studies published until 2015, on fertile Asian men. In the reports of Carlsen et al., no overall declining trend in Asian men (r = 0.509, P = 0.760) was observed during this tenure, but non- Carsen reports showed a significant time-dependent decline of sperm concentration (r = -0.754, P = 0.005) in Asian men. This present review also showed a mild time-dependant decline in sperm concentration (-0.44×106/mL/year, 95% CI: -0.65 to -0.23; r = -0.473, P = 0.040) which accounted for an overall 22.17% decrease in past 50 years. Conclusions: This study brings to the forefront that sperm concentration among Asian men follows a mild declining trend over the period of 50 years, and further studies addressing the causes of this decline are required. Wolters Kluwer Medknow Publications 2018 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/73949/1/Sperm%20counts%20in%20Asian%20men%20reviewing%20the%20trend%20of%20past%2050%20years.pdf Sengupta, Pallav and Dutta, Sulagna and Tusimin, Maiza and Irez, Tulay and Kulak, Elzbieta Krajewska (2018) Sperm counts in Asian men: reviewing the trend of past 50 years. Asian Pacific Journal of Reproduction, 7 (2). 87 - 92. ISSN 2305-0500; ESSN: 2305-0519 10.4103/2305-0500.228018 |
| spellingShingle | Sengupta, Pallav Dutta, Sulagna Tusimin, Maiza Irez, Tulay Kulak, Elzbieta Krajewska Sperm counts in Asian men: reviewing the trend of past 50 years |
| title | Sperm counts in Asian men: reviewing the trend of past 50 years |
| title_full | Sperm counts in Asian men: reviewing the trend of past 50 years |
| title_fullStr | Sperm counts in Asian men: reviewing the trend of past 50 years |
| title_full_unstemmed | Sperm counts in Asian men: reviewing the trend of past 50 years |
| title_short | Sperm counts in Asian men: reviewing the trend of past 50 years |
| title_sort | sperm counts in asian men reviewing the trend of past 50 years |
| url | http://psasir.upm.edu.my/id/eprint/73949/1/Sperm%20counts%20in%20Asian%20men%20reviewing%20the%20trend%20of%20past%2050%20years.pdf |
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