ACCRA, Scientists have found a 72 per cent decline in sperm count in African men over the past 50 years, says a study published in the June 2017 issue of African Health Sciences.
Dr Pallav Sengupta, the Head of Physiology at the Faculty of Medicine of Malaysia’s Lincoln University College, is quoted as saying in the study: This is a threat to the procreation of the future generations.”
“I was amazed at the magnitude of the problem. A 72 per cent decline over time is a dangerous downward trend. This situation is indeed scary, says Uchenna I Nwagha, a co-author iof the study and Professor of Obstetric Biology and Reproductive Medicine at the Department of Obstetrics and Gynecology/Physiology College of Medicine of the University of Nigeria, Enugu Campus.
The current concentration is also very near to the World Health Organization (WHO) cut-off value of 2010 of 15A 106/ml, which is a major issue of concern.
The study says that after a systematic review and meta-analysis which retrieved data following MOOSE guidelines and PRISMA checklist, they found that the possible major causes are poorly treated sexually transmitted infections (STIs) and hormonal abnormalities, consumption of excessive alcohol and tobacco smoking.
Recently published articles cite exposure to pesticides and heavy metals as principal triggers of decreased sperm count among African men.
“We have put forth the evidences of the decline and discussed various causative factors over the past 50 years like lifestyle, food habits, disease prevalence and others, said Dr Sengupta, the lead author of the study report.
More than one factor is involved in this decreasing trend, correlation with a single factor is difficult to establish. But we are also working on their correlations for our upcoming reports.”
In the meta-analysis conducted, the researchers retrieved data from 14 studies which were conducted during 1965 and 2015 on altering sperm concentration in the African male. The studies were done in Nigeria, Tunisia, Tanzania, Libya and Egypt among males aged 19 to 55.
Source: NAM NEWS NETWORK