The American journal, Proceedings of the National Academy of Science, has revealed that Australian scientists at Monash University "have succeeded in making male mice infertile by blocking the function of two proteins". This research, published on 3 December, therefore represents a "new phase for the development of a male contraceptive pill".
Earlier attempts at developing a male contraceptive "focused on hormones or dysfunctional sperm production".
The next phase for the Australian scientists is therefore to "attempt to reproduce this genetic phenomenon in chemical terms". In fact, the use of a chemical as opposed to a hormonal method would not impact upon sperm development. Research could produce a male contraceptive pill within the next decade.