Document Type : Original articles

Authors

1 Department of Obstetrics and Gynecology, College of Medicine, Mustansiriyah University, Baghdad, Iraq.

2 Department of Inspection, Ministry of Health, Baghdad, Iraq.

3 Faculty of Medicine, “Ovidius” University of Constanta, 900470 Constanta, Romania.

4 Department of Pediatrics, Faculty of Medicine, “Ovidius” University of Constanta, 900470 Constanta, Romania.

Abstract

Background: Age can affect seminal fluid parameters (SFPs); many studies reported that SFPs are reduced in older men. Although these alterations may not necessarily cause infertility, they can make it harder for older men to conceive.
Objective: We aimed to examine which SFPs are mostly affected by age among Iraqi population.
Material and Methods: A retrospective observational study recruited 120 eligible male participants attending an infertility center, Bagdad, Iraq. The participants were grouped according to their ages into 3 groups as follows: Group I: 21-30 years (41/120); Group II: 31-40 years (43/120), and Group III > 40  years (36/120). For each participant, we collected firstly male demographic and clinical criteria that include age, infertility type, and its duration, in addition to abstinence days. Secondly, SFPs, that include volume, viscosity, liquefaction time, sperm concentration, viability, motility, normal and abnormal morphology, and round cell count. The correlation of age with SFPs was examined.
 Results: Analysis showed insignificant differences in seminal fluid volume, total motility, and viscosity among the three groups. Group I showed the lowest liquefication time, and had the highest sperm counts and normal morphology. Abnormal sperm morphology was highest in group III and was statistically meaningful across the groups.
Conclusion: SFPs of older men > 40 years had the lowest number of sperm number and live sperm the highest immotile, non -progressive, and abnormal morphological sperms. Since the average paternal age is rising, it is imperative to educate men that advancing age reduces fertility potential and impacts offspring health.

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[1]      S. L. Johnson, J. Dunleavy, N. J. Gemmell, and S. Nakagawa, “Consistent age-dependent declines in human semen quality: a systematic review and meta-analysis,” Ageing Res. Rev., vol. 19, pp. 22–33, 2015.
[2]      T. G. Cooper et al., “World Health Organization reference values for human semen characteristics,” Hum. Reprod. Update, vol. 16, no. 3, pp. 231–245, 2010.
[3]      J.-J. Wang et al., “Age-related decline of Male fertility: Mitochondrial dysfunction and the antioxidant interventions,” Pharmaceuticals, vol. 15, no. 5, p. 519, 2022.
[4]      T. E. Schmid et al., “Micronutrients intake is associated with improved sperm DNA quality in older men,” Fertil. Steril., vol. 98, no. 5, pp. 1130–1137, 2012.
[5]      W. Nori and D. A. Salman, “Seminal fluid changes in the COVID-19 era; Post-infection and Post-vaccination,” Gynecol. Obstet. Clin. Med., Jun; 3(2): 88–93, 2023.
[6]      H. A. Ugboma, J. A. Obuna, and E. W. Ugboma, “Pattern of seminal fluid analysis among infertile couples in a secondary health facility in South-Eastern Nigeria,” Res Obs. Gynecol, vol. 1, pp. 15–18, 2012.
[7]      A. Szabó et al., “Lifestyle-, environmental-, and additional health factors associated with an increased sperm DNA fragmentation: a systematic review and meta-analysis,” Reprod. Biol. Endocrinol., vol. 21, no. 1, p. 5, 2023.
[8]      S. C. Sikka and W. J. G. Hellstrom, “Current updates on laboratory techniques for the diagnosis of male reproductive failure,” Asian J. Androl., vol. 18, no. 3, p. 392, 2016.
[9]      W. Rodprasert et al., “An update on semen quality among young Finnish men and comparison with Danish data,” Andrology, vol. 7, no. 1, pp. 15–23, 2019.
[10]    D. J. Mazur and L. I. Lipshultz, “Infertility in the aging male,” Curr. Urol. Rep., vol. 19, pp. 1–9, 2018.
[11]    V. Pino, A. Sanz, N. Valdés, J. Crosby, and A. Mackenna, “The effects of aging on semen parameters and sperm DNA fragmentation,” JBRA Assist. Reprod., vol. 24, no. 1, p. 82, 2020.
[12]    C. Fricke et al., “Timeless or tainted? The effects of male ageing on seminal fluid,” Front. Ecol. Evol., vol. 11, p. 1066022, 2023.
[13]    B. J. M. Mayorga-Torres, M. Camargo, A. Agarwal, S. S. Du Plessis, Á. P. Cadavid, and W. D. Cardona Maya, “Influence of ejaculation frequency on seminal parameters,” Reprod. Biol. Endocrinol., vol. 13, pp. 1–7, 2015.
[14]    I. Feferkorn et al., “Geographic variation in semen parameters from data used for the World Health Organization semen analysis reference ranges,” Fertil. Steril., vol. 118, no. 3, pp. 475–482, 2022.
[15]    P. Anamthathmakula and W. Winuthayanon, “Mechanism of semen liquefaction and its potential for a novel non-hormonal contraception,” Biol. Reprod., vol. 103, no. 2, pp. 411–426, 2020.
[16]    S. Brahem, M. Mehdi, H. Elghezal, and A. Saad, “The effects of male aging on semen quality, sperm DNA fragmentation and chromosomal abnormalities in an infertile population,” J. Assist. Reprod. Genet., vol. 28, pp. 425–432, 2011.
[17]    G. L. Verón et al., “Impact of age, clinical conditions, and lifestyle on routine semen parameters and sperm kinematics,” Fertil. Steril., vol. 110, no. 1, pp. 68–75, 2018.
[18]    R. Sharma, A. Agarwal, V. K. Rohra, M. Assidi, M. Abu-Elmagd, and R. F. Turki, “Effects of increased paternal age on sperm quality, reproductive outcome and associated epigenetic risks to offspring,” Reprod. Biol. Endocrinol., vol. 13, pp. 1–20, 2015.
[19]    M. R. Sandfoss, S. Reichling, and B. M. Roberts, “Sperm morphology and forward motility are indicators of reproductive success and are not age-or condition-dependent in a captive breeding population of endangered snake,” PLoS One, vol. 18, no. 3, p. e0282845, 2023.
[20]    R. B. Danis and M. K. Samplaski, “Sperm morphology: history, challenges, and impact on natural and assisted fertility,” Curr. Urol. Rep., vol. 20, pp. 1–8, 2019.
[21]    S. Dong, C. Chen, J. Zhang, Y. Gao, X. Zeng, and X. Zhang, “Testicular aging, male fertility and beyond,” Front. Endocrinol. (Lausanne)., vol. 13, p. 1012119, 2022.
[22]    G. Collodel, F. Ferretti, M. Masini, G. Gualtieri, and E. Moretti, “Influence of age on sperm characteristics evaluated by light and electron microscopies,” Sci. Rep., vol. 11, no. 1, p. 4989, 2021.
[23]    M. Assidi, “Infertility in men: Advances towards a comprehensive and integrative strategy for precision theranostics,” Cells, vol. 11, no. 10, p. 1711, 2022.
[24]    R. Begueria, D. Garcia, A. Obradors, F. Poisot, R. Vassena, and V. Vernaeve, “Paternal age and assisted reproductive outcomes in ICSI donor oocytes: is there an effect of older fathers?,” Hum. Reprod., vol. 29, no. 10, pp. 2114–2122, 2014.
[25]    M. Asif, A. S. Vijay, S. Fyzullah, U. Rani, R. Swathi, and K. M. D. Gowda, “Impact of chronological ageing on semen parameters in southern Indian men visiting infertility centre: A retrospective study,” Asian Pacific J. Reprod., vol. 12, no. 1, pp. 10–15, 2023.
[26]    E. Borges Jr, A. S. Setti, D. P. de A. F. Braga, R. de C. S. Figueira, and A. Iaconelli Jr, “Decline in semen quality among infertile men in Brazil during the past 10 years,” Int. braz j urol, vol. 41, pp. 757–763, 2015.
[27]    E. N. Akang et al., “Trends in semen parameters of infertile men in South Africa and Nigeria,” Sci. Rep., vol. 13, no. 1, p. 6819, 2023.
[28]    G. Zhang et al., “Mitochondrial functionality modifies human sperm acrosin activity, acrosome reaction capability and chromatin integrity,” Hum. Reprod., vol. 34, no. 1, pp. 3–11, 2019.
[29]    A. Kaltsas et al., “Impact of advanced paternal age on fertility and risks of genetic disorders in offspring,” Genes (Basel)., vol. 14, no. 2, p. 486, 2023.