纪录片《节食还是截寿》 第21期:生长因子

（单词翻译）

They smoke or eat very high calorie diets,

他们吸烟 吃高热量的食物

and then they look at me and they say,

然后他们看着我说

"Oh, it doesn't matter. I'm immune."

没关系的 我有免疫力

But the incredible thing is that there's no evidence

不可思议的是 没有证据显示

of a single one of them ever dying of cancer,

他们中曾有人死于癌症

yet their normal-height relatives

但是他们的那些正常身高的亲戚

get cancer like everybody else.

会跟其他人一样得癌症

People with Laron syndrome¹

莱伦氏综合症的患者

have a mutation² which makes them small,

因基因突变而导致身材矮小

but which also seems to protect them against all these diseases.

但却因此对所有这类疾病具有免疫力

It's incredible working with them.

和他们在一起工作棒极了

It's a great group, and of course

非常好的一群人 当然

for us is a group that in one mutation,

对我们来说 这群基因突变的人

can tell us about diabetes³,

能让我们进一步了解糖尿病

cancer, cardiovascular diseases and ageing.

癌症 心血管疾病和衰老的关系

The Ecuadorian villagers and the long-lived mice

厄瓜多尔的村民们和那只长寿的小鼠

have something in common.

有着相似之处

Their bodies produce exceptionally low levels

他们分泌的类胰岛素一号生长因子

of the growth hormone⁴ IGF-1.

含量非常低