Featured Research

from universities, journals, and other organizations

Internationally Adopted Children Hit Puberty Earlier, Study Finds

Date:
September 21, 2008
Source:
University of Montreal
Summary:
A Canadian study has found that some girls adopted from China begin puberty as early as eight and boys as early as 10-years-old.

Experts claim that internationally adopted children can undergo puberty at an early age making them more susceptible to a variety of health risks as adults: abdominal obesity, hypertension, diabetes, cardiovascular disease and even certain cancers.

Related Articles


But are internationally adopted children really more at risk?

"It depends on their country of origin and on their living conditions up until their adoption," says Hélène Delisle, a professor at the Université de Montréal's Department of Nutrition.

"Many factors are at play, but a low birth weight that isn't recuperated between the ages zero and two, combined with an accelerated weight gain during childhood, would increase the risk of early puberty and chronic disease in adulthood."

In Quebec, half of the 900 children who are internationally adopted every year are from China. Some girls begin puberty as early as eight and boys as early as 10-years-old.

Here's how it works: The beginning of puberty is greatly correlated to weight. Weight gain provokes the secretion of leptin, a hormone that plays a key role in regulating appetite.

When calorie intake increases, leptin levels also increase which in turn provokes the secretion of GnRH (Gonadotropin Releasing Hormone). This hormone regulates the development of ovulation and the menstrual cycle in women and spermatogenesis in men.

Therefore, a radical change in diet, as is often observed in children migrating to an industrialized country, can trigger puberty. "And many health problems," says Delisle who has studied nutrition on an international scale for more than 30 years.


Story Source:

The above story is based on materials provided by University of Montreal. Note: Materials may be edited for content and length.


Cite This Page:

University of Montreal. "Internationally Adopted Children Hit Puberty Earlier, Study Finds." ScienceDaily. ScienceDaily, 21 September 2008. <www.sciencedaily.com/releases/2008/09/080918170811.htm>.
University of Montreal. (2008, September 21). Internationally Adopted Children Hit Puberty Earlier, Study Finds. ScienceDaily. Retrieved February 27, 2015 from www.sciencedaily.com/releases/2008/09/080918170811.htm
University of Montreal. "Internationally Adopted Children Hit Puberty Earlier, Study Finds." ScienceDaily. www.sciencedaily.com/releases/2008/09/080918170811.htm (accessed February 27, 2015).

Share This


More From ScienceDaily



More Health & Medicine News

Friday, February 27, 2015

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

New FDA-Approved Diabetes Medicine Might Save Drugmaker

New FDA-Approved Diabetes Medicine Might Save Drugmaker

Newsy (Feb. 26, 2015) — The U.S. Food and Drug Administration approved new diabetes drug Toujeo on Wednesday, a move that might save French drugmaker Sanofi&apos;s profits. Video provided by Newsy
Powered by NewsLook.com
The Best Foods to Battle Stress

The Best Foods to Battle Stress

Buzz60 (Feb. 26, 2015) — If you&apos;re dealing with anxiety, there are a few foods that can help. Krystin Goodwin (@krystingoodwin) has the best foods to tame stress. Video provided by Buzz60
Powered by NewsLook.com
The 5 Best Tips to Look Younger Now

The 5 Best Tips to Look Younger Now

Buzz60 (Feb. 26, 2015) — Life happens, and we all get older, but forget the pricey anti-aging products and plastic surgery. You can tweak your habits to turn back the hands of time. Krystin Goodwin (@krystingoodwin) has a few simple tips to help you look and feel younger. Video provided by Buzz60
Powered by NewsLook.com
Sleeping Too Much Or Too Little Might Increase Stroke Risk

Sleeping Too Much Or Too Little Might Increase Stroke Risk

Newsy (Feb. 26, 2015) — People who sleep more than eight hours per night are 45 percent more likely to have a stroke, according to a University of Cambridge study. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:

Strange & Offbeat Stories

 

Health & Medicine

Mind & Brain

Living & Well

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:  

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile iPhone Android Web
Follow Facebook Twitter Google+
Subscribe RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins