TITLE:
Frequency of Monthly Ejaculation at Sexual Intercourse, DNA Fragmentation Index and Fertilization Rate among Sperm Donors and Fertility-Challenged Men in Sub-Saharan Africa: Paper 2
AUTHORS:
Abayomi B. Ajayi, Bamgboye M. Afolabi, Victor D. Ajayi, Ifeoluwa O. Oyetunji, Adedamilola Atiba, Seun Saanu, Ayodeji T. Adeoye, Joy I. Ehichioya, Ibukun I. Ayelehin
KEYWORDS:
Monthly Ejaculation at Sexual Intercourse, Systolic and Diastolic Blood Pressures, DNA Fragmentation Index, Fertilization Rates, Social Habits, Sub-Fertile Males, Sub-Sahara Black Africans
JOURNAL NAME:
Open Journal of Urology,
Vol.10 No.3,
February
28,
2020
ABSTRACT: Introduction: Heterogenous sexual intercourse often produces a powerful orgasm that stimulates the pituitary function. Studies have suggested ejaculation frequency based on age. Materials and Methods: Semi-structured questionnaires were used to collect information from subjects. Semen samples were collected from sperm donors and sub-fertile men who presented for infertility challenges. Processing and analysis of semen samples were done according to World Health Organization (WHO) guidelines. Sperm deoxyribonucleic acid (DNA) fragmentation was evaluated using the Halosperm kit. Results: Among sperm donors, those aged χ2 = 0.09, P-value = 0.81, OR = 3.2, 95% CI: 0.23, 45.19) while among sub-fertile men those aged ≥40 years were approximately 2.3 times more likely to have very low frequency of MESI compared to aged χ2 = 2.11, P-value = 0.51, OR = 2.27, 95% CI: 0.74, 9.92). The frequency of all categories of MESI was highest among sub-fertile men aged χ2 = 0.03, P-value = 0.57, OR = 2.42, 95% CI: 0.41, 14.46). Sub-fertile men aged ≥40 with diastolic hypertension (≥90 mmHg) were approximately 6 times more likely to have a low (6 - 10) frequency of MESI compared to those aged χ2 = 1.97, P-value = 0.16, OR = 6.22, 95% CI: 0.69, 55.77). Overall mean fertilization rate was significantly higher (t-test = 2.44, P-value = 0.01) among sub-fertile men aged Conclusion: Cigarette smoking, more than alcohol consumption, appears to be a major factor that significantly affects the frequency of MESI among sub-fertile men in all age groups. Frequency of MESI negatively but insignificantly correlated with systolic blood pressure.