The Disappearing Sperms: Analysis of Reports Published Between 1980 and 2015
Overview
Public Health
Affiliations
Reports regarding the changes in sperm concentration in different counties of the world are inconsistent. Furthermore, the reports that sprung up from specific epidemiological and experimental examinations did not include data of prior studies or geographical variations. The current study, following a previous report of massive fall in semen volume over the past 33 years, attempts to delineate the trend of altering sperm concentrations and factors responsible for this by reviewing article published from 1980 to July 2015 with geographic differences. The current study identified an overall 57% diminution in mean sperm concentration over the past 35 years ( r = -.313, p = .0002), which, when analyzed for each geographical region, identified a significant decline in North America, Europe, Asia, and Africa. An increasing trend of sperm concentration was identified only in Australia. The association of male age with such a trend ( R = .979) is reported. The authors also correlated male fertility with sperm concentration. Thus, this comprehensive, evidence-based literature review aims to concisely and systematically present the available data on sperm concentration from 1980 to 2015, as well as to statistically analyze the same and correlate male health with the declining pattern of sperm count in a single scientific review to serve the scientific research zone related to reproductive health. It points to the threat of male infertility in times ahead.
The protective effect of on male infertility induced by thioacetamide.
Alaryani F, Jaber F, Almutiri B, Abdu S, Mohammed A, Al-Robiee A J Adv Vet Anim Res. 2024; 11(3):762-771.
PMID: 39605775 PMC: 11590601. DOI: 10.5455/javar.2024.k828.
Victory J, John S, Wang L, Koegl J, Richter L, Bayrampour H AJOG Glob Rep. 2024; 4(3):100367.
PMID: 39100508 PMC: 11296243. DOI: 10.1016/j.xagr.2024.100367.
Leukocytospermia and/or Bacteriospermia: Impact on Male Infertility.
Henkel R J Clin Med. 2024; 13(10).
PMID: 38792382 PMC: 11122306. DOI: 10.3390/jcm13102841.
Kuzma-Hunt A, Sabry R, Davis O, Truong V, Khokhar J, Favetta L PLoS One. 2024; 19(3):e0298697.
PMID: 38536780 PMC: 10971525. DOI: 10.1371/journal.pone.0298697.
The effect of red blood cell disorders on male fertility and reproductive health.
Naelitz B, Khooblall P, Parekh N, Vij S, Rotz S, Lundy S Nat Rev Urol. 2024; 21(5):303-316.
PMID: 38172196 DOI: 10.1038/s41585-023-00838-8.