John Amory: How a male contraceptive pill could work
John Amory: Cómo funcionaría una píldora anticonceptiva masculina
John Amory is leading research into novel options for male contraception, male infertility and hypergonadism. Full bio
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tratando de desarrollar
a contraceptive pill for men,
along gender lines.
varían según el género.
¿Cuándo estará lista?
dos reacciones diferentes.
I have in store for their testicles.
qué estoy tramando para sus testículos.
una píldora masculina?
annually in the United States,
de embarazos por año en EE.UU.
unintended pregnancies
de embarazos no deseados
of the more than one million abortions
los más de un millón de abortos
has fallen in the last few years
no deseadas descendió en los últimos años
are using effective, long-acting,
usan métodos anticonceptivos
y de efecto duradero.
convirtiendo en una posibilidad tangible
becoming a real possibility
anticonceptivos para hombres.
of contraception for women:
anticonceptivos para mujeres:
shots, sponges, rings, etc.
esponjas, anillos, etc.
las mismas dos opciones
for 30 percent of all contraceptive use,
del uso de métodos anticonceptivos,
relying on vasectomy
que recurren a la vasectomía
relying on condoms for contraception
el condón como método anticonceptivo,
failure rate of over 15 percent?
de error de 15 % al año?
no pueden usar con seguridad
can't either safely take
femeninos actuales,
for reasons such as blood clots,
los efectos secundarios.
would be useful, the next question is:
masculino sería útil,
¿cómo podemos desarrollarlo?
swim towards or bind to the egg.
hasta el óvulo o se une a él.
to be really difficult,
por ser difícil concentrar
in the small volume of the ejaculate
volumen de la eyaculación
the female reproductive tract.
en el tracto reproductivo femenino.
done on the second approach,
sobre el segundo enfoque,
sperm production entirely.
la producción de esperma.
that men make a lot of sperm.
producimos mucho esperma.
mil espermatozoides por segundo
of sperm production
esta producción de esperma
hormones to suppress sperm production.
la producción de esperma.
when administered together,
suministradas juntas,
to the testes to make sperm,
a los testículos para producir esperma,
three to four months will stop.
de tres a cuatro meses después.
don't respond to these hormonal regimens
tratamientos hormonales
my colleagues and I
to male contraceptive development,
desarrollo del anticonceptivo masculino,
the administration of hormones.
the function of vitamin A in the testes.
de la vitamina A en los testículos.
it's been known
desde hace más de 90 años
para la producción de esperma.
of vitamin A in their diet
la vitamina A en su dieta
when the vitamin A is reintroduced.
vuelven a ingerir vitamina A.
to something called retinoic acid.
en algo llamado ácido retinoico.
is found only in the testes.
solo en los testículos.
that we are attempting to block.
should deprive the testes of retinoic acid
a los testículos del ácido retinoico,
elsewhere in the body.
en el resto del cuerpo.
of such a male contraceptive
un anticonceptivo masculino tal
about the effect that it would have
sobre el efecto que ello tendría
his contraceptive status over time.
su estado anticonceptivo siempre.
home sperm-testing devices
apps cuentaespermas caseros
and share the result with his partner.
y se lo mostraría a su pareja.
would feel very comfortable
se sentirían más cómodos
coupled with a male contraceptive,
con un anticonceptivo masculino,
in preventing unintended pregnancy.
en la prevención del embarazo no deseado.
en la anticoncepción masculina
on male contraception
a better future for couples,
mejor para las parejas,
considered just "a woman's issue,"
deje ser considerada "cosa de mujeres",
for couples to decide together.
una píldora masculina?
rates of unintended pregnancy and abortion
tasas de embarazos no deseados y abortos
tengan la misma responsabilidad
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