John Amory: How a male contraceptive pill could work
John Amory: Com funcionaria una pastilla anticonceptiva masculina
John Amory is leading research into novel options for male contraception, male infertility and hypergonadism. Full bio
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a contraceptive pill for men,
una pastilla anticonceptiva per homes,
along gender lines.
depenent del gènere.
dues coses diferents.
I have in store for their testicles.
per als seus testicles.
una pastilla pels homes?
annually in the United States,
a l'any als Estats Units
unintended pregnancies
d'embarassos no desitjats
of the more than one million abortions
has fallen in the last few years
han disminuït
en els últims anys.
are using effective, long-acting,
anticonceptius efectius,
un llarg camí per fer.
becoming a real possibility
possiblement es faci realitat
pels homes.
of contraception for women:
de mètodes anticonceptius per dones:
shots, sponges, rings, etc.
injeccions, esponges, anelles, etc.
les mateixes dues opcions
for 30 percent of all contraceptive use,
el 30% de l'ús dels mètodes:
relying on vasectomy
en la vasectomia
fan servir preservatius.
relying on condoms for contraception
els preservatius
failure rate of over 15 percent?
un índex d'error anual de més del 15%?
can't either safely take
prendre els anticonceptius disponibles
for reasons such as blood clots,
els efectes secundaris.
would be useful, the next question is:
masculí seria útil, cal preguntar-nos:
swim towards or bind to the egg.
neda cap a l'ovari.
to be really difficult,
in the small volume of the ejaculate
suficient medicament en una ejaculació
the female reproductive tract.
en el conducte reproductor femení.
done on the second approach,
la segona proposta,
sperm production entirely.
la producció d'espermatozoides.
that men make a lot of sperm.
Els homes fan molts espermatozoides.
per segon.
of sperm production
hormones to suppress sperm production.
per suprimir la producció d'esperma.
when administered together,
testosterona i progesterona alhora
to the testes to make sperm,
als testicles per produir esperma,
three to four months will stop.
després d'uns tres o quatre mesos.
don't respond to these hormonal regimens
no respon a les hormones
my colleagues and I
amb els meus companys
to male contraceptive development,
per als anticonceptius masculins,
the administration of hormones.
l'administració d'hormones.
the function of vitamin A in the testes.
la vitamina A als testicles.
it's been known
s'ha sabut
per fer esperma.
of vitamin A in their diet
vitamina A a la seva dieta
when the vitamin A is reintroduced.
la vitamina A es torna a introduir.
to something called retinoic acid.
per una família d'enzims.
is found only in the testes.
només en els testicles.
that we are attempting to block.
aquest enzim.
should deprive the testes of retinoic acid
els testicles d'àcid retinoic
elsewhere in the body.
de la vitamina A de la resta del cos.
en humans aviat.
of such a male contraceptive
anticonceptiu masculí
la biologia reproductiva.
about the effect that it would have
sobre els efectes que tindria
his contraceptive status over time.
de l'anticonceptiu sempre que vulgués.
home sperm-testing devices
per testar l'esperma a casa
and share the result with his partner.
d'espermatozoides i dir-ho a la parella.
would feel very comfortable
es sentirien molt segurs
coupled with a male contraceptive,
juntament amb un anticonceptiu masculí,
in preventing unintended pregnancy.
en prevenir embarassos no desitjats.
on male contraception
els anticonceptius masculins
a better future for couples,
per a les parelles,
considered just "a woman's issue,"
no són considerats "una cosa de dones",
for couples to decide together.
han de decidir conjuntament.
una pastilla pels homes?
rates of unintended pregnancy and abortion
d'embarassos no desitjats i d'avortaments
de la mateixa manera
ABOUT THE SPEAKER
John Amory - Male reproductive health expertJohn Amory is leading research into novel options for male contraception, male infertility and hypergonadism.
Why you should listen
John Amory is is currently examining the potential of using inhibitors of testicular retinoic acid biosynthesis as reversible male contraceptives. He has published more than 130 peer-reviewed papers in the field of male reproduction and serves on the Advisory Board of the Male Contraception Initiative. He is currently Professor of Medicine and Section Head of General Internal Medicine at the University of Washington, where he works as an attending physician on the inpatient medicine wards and in the outpatient General Internal Medicine and Men's Health Clinics.
John Amory | Speaker | TED.com