Australasian Science 11-1

(Chris Devlin) #1

O


ne in six Australian couples is infertile, and
male infertility is the sole or a contributory
cause in half of these. Treatment sought by
infertile couples leads to 70,000 assisted repro-
ductive technology cycles each year at a cost
of $600 million, with each couple paying approximately $
per cycle out of pocket.
A less readily quantified cost of infertility is the psychosocial
and relationship stress resulting from the inability to father a
biological child. Male infertility is a deeply personal affliction
for which disclosure to family and friends, or support groups,
is often declined or unavailable.
Failure to produce adequate numbers of motile and func-
tional sperm is the most common presentation of male infer-
tility, yet for most men no specific cause can be identified. As
such, no effective treatment can be provided.
Our current inability to make a precise diagnosis compounds
the sense of frustration for patient and clinician alike. Semen
and hormone testing provide insights into the severity of the
underlying disorder, but usually not the cause of disease.
In an effort to rectify this situation, studies are underway
to identify the genetic causes behind about 50% of infertility
cases. A potentially far more challenging task is identifying
environmental causes of infertility and the interplay between
genetics and environmental exposures.
For many men, assisted reproductive technology approaches,
such as intra-cytoplasmic sperm injection, provides a bypass
for sperm functional deficits. But assisted reproductive tech-
nologies place a disproportionately heavy burden on the female
partner, and can carry substantial treatment-associated risks
and financial burdens.
Added to this burden is that infertility remains “women’s
business” in many countries, with the focus of infertility assess-
ments being the female partner. This apparent gender bias is,
however, gradually receding with the Fertility Society of Australia
recently mandating the routine evaluation of male partners
within all clinical infertility programs.

Despite this overwhelming clinical and social need, rela-
tively little research is conducted on the mechanisms under-
lying normal or disordered male fertility. This lack of
prioritisation is tied up in complex taboos and narrow-minded
perceptions that unless you die of something, or patients are
openly complaining, it does not deserve funding.
Rather, we would argue that male infertility is such a personal
issue it will be the very rare patient who will stand up in public
and proclaim themselves to be infertile and become a” crusader”
in the way we have seen with several types of cancer. Until
infertility is “normalised” as a disease like any other in the
community, it will be left to those who know the breadth and
depth of this condition to advocate for increased service and
research effort.
In constructing the case for an enhanced focus on male
reproductive health, we present three perspectives:


  1. male infertility is extraordinarily common, affecting men
    you know or it could affect you;

  2. male contraception represents a largely untapped means of
    increasing fertility control options; and

  3. infertile men die younger than their fertile brothers.
    Currently men play a major but often under-recognised role
    in natural family planning through the use of condoms
    and sterilisation. There is, however, a need for a new
    male contraceptive for couples for whom existing
    methods (including female-based methods) are
    unacceptable. The ideal contraceptive needs to
    be efficacious, reversible, safe, cheap and easy
    to use, but ultimately the development of a
    contraceptive akin to the female pill also involves
    a business case.
    An effective male hormone-based contraceptive strategy has
    been developed, and several non-hormonally-based methods
    are in development. The male hormonal contraceptive approach


20 | JAN/FEB 2016


The Boys Are Not OK


MOIRA O’BRYAN & ROB McLACHLAN

Not only is male infertility a determining factor
in a couple’s ability to start a family, it is also
associated with a higher risk of early death.
Free download pdf