When puberty comes a-knocking, the hypothalamus starts releasing gonadotropin-releasing hormone, or GnRH.

当青春期来临时，下丘释放促性腺激释放激。

A signal triggers the pituitary gland to release the hormone gonadotropin.

个信号会促使垂体释放出促性腺激。

Okay. Um..." Are my HCG levels doubling every 48 hours? "

还有… … “的促性腺激每48小时就翻一番吗？”

Before puberty, the hypothalamus constantly secretes small amounts of a hormone called gonadotropin-releasing hormone, or GnRH.

青春期前下丘会持续地小剂量地分泌一种激，叫作促性腺激释放激，即GnRH。

It also includes the gonadotrophin-releasing hormone neurons which results in a decrease in gonadotrophin-releasing hormone.

它还累及促性腺激释放激神经元，致其减少释放促性腺激释放激。

When puberty begins the hypothalamus starts up the ovarian cycle by secreting gonadotropin-releasing hormone about once a month.

当青春期时，下丘启动卵巢周期大约每个月分泌一次促性腺激释放激。

And that leads to low levels of the gonadotropin hormones, luteinizing and follicle-stimulating hormones, and low levels of gonadal function.

而会导致促性腺激（如促黄体生成和卵泡刺激水平）降低，以及性腺功能水平降低。

These gonadotropin hormones then stimulate the gonads to produce sex specific hormones.

些促性腺激随后刺激性腺生成性别特异性激。

So, to recap: Kallmann syndrome is a type of hypogonadotropic hypogonadism where olfactory neurons and gonadotropin-releasing hormone neurons don't function normally.

Kallmann综合征是一种低促性腺激性性腺功能减退症，其嗅觉神经元与促性腺激释放激神经元不能发挥正常功能。

This is called hypergonadotropic (because the level of gonadotropins are high) hypogonadism (because the level of gonad or ovarian hormones is low).

由于促性腺激水平高，而性腺或卵巢激水平低，被称为高促性腺激型性腺功能减退症。

GnRH makes the nearby pituitary gland secrete two hormones of its own, called gonadotropins.

GnRH促使附近的垂体自身分泌两种激，称为促性腺激。

Normally, the hypothalamus, which is located at the base of the brain, secretes gonadotropin-releasing hormone, or GnRH.

正常情况下，位于基底部的下丘分泌促性腺激释放激，即GnRH。

Yet, if the egg arrives fertilized, its outermost layer begins producing hCG.

然而，如果卵子受精了，其最外层产生人绒毛膜促性腺激。

In premature ovarian failure when estrogen levels are low the pituitary gland attempts to restore balance by increasing production of gonadotropins LH and FSH.

在卵巢早衰中，当雌激水平较低时，垂体试图通过增加促性腺激LH和FSH的产生来恢复平衡。

Maybe it's, I like having a little bit of ACG.

也许，喜欢来点人绒毛膜促性腺激。

In other cases, hCG levels drop, followed by a decrease in progesterone, causing bleeding and cramping.

在其他情况下， 人绒毛膜促性腺激水平下降， 随后孕酮减少，导致出血和痉挛。

Over time, many ovarian follicles degenerate, and the ones that remain become less and less sensitive to gonadotropin stimulation.

随着时间的推移，许多卵巢卵泡退化，而余下的卵泡对促性腺激的刺激变得越来越不敏感。

The second group contains neurons that release gonadotropin-releasing hormone.

第二组包含释放促性腺激释放激的神经元。

So, for example, a pinealoma may lead to increased secretion of the hormone beta human chorionic gonadotropin that can cause an early onset of puberty.

比如，松果体瘤可能导致β人绒毛膜促性腺激分泌增加，可引起青春期发育提前。

Gonadotropin-releasing hormone is released into the hypophyseal portal system, which is a network of capillaries connecting the hypothalamus to the hypophysis, or pituitary.

促性腺激释放激（GnRH）释放到垂体门脉系统，后者是一个将下丘与垂体互相连通的毛细血管网。