Featured Research

from universities, journals, and other organizations

Genes That Influence Start Of Menstruation Identified For First Time

Date:
May 21, 2009
Source:
The Peninsula College of Medicine and Dentistry
Summary:
Researchers from the Peninsula Medical School, along with collaborators from research institutions across Europe and the United States, have for the first time identified two genes that are involved in determining when girls begin menstruation.

Two genes clarify the genetic control of female sexual maturation, and point to regulatory mechanisms involved in human growth and development.

Researchers from the Peninsula Medical School, along with collaborators from research institutions across Europe and the United States, have for the first time identified two genes that are involved in determining when girls begin menstruation. 

The findings of the study could have ramifications for normal human growth and weight too, because early-age menstruation is also associated with shorter stature and increased body weight. In general, girls who achieve menstruation earlier in life tend to have greater body mass index (BMI) and a higher ratio of fat compared to those who begin menstruation later.

The study carried out an analysis of 17,510 women across eight different international population-based sources. This number included women of European descent who reported the age at which they reached menstruation of between nine and 17 years.

The two genes identified were on chromosomes nine and six. One in 20 females carry two copies of each of the gene variations which result in menstruation starting earlier, and they will start menstruating approximately four and half months earlier than those with no copies of the gene variants.

Dr Anna Murray from the Peninsula Medical School, commented: "This study provides the first evidence that common genetic variants influence the time at which women reach sexual maturation. Our findings also indicate a genetic basis for the associations between early menstruation and both height and BMI."

She added: "The study takes us nearer to understanding the biology of the processes involved in puberty and early growth and to understand what constitutes 'normal' in growth and development."

Fellow author John Perry, also from the Peninsula Medical School, added: "Understanding the biological mechanisms behind reproductive lifespan may also help inform us about associated diseases that affect a lot of women as they get older, including diabetes, heart disease and breast cancer."


Story Source:

The above story is based on materials provided by The Peninsula College of Medicine and Dentistry. Note: Materials may be edited for content and length.


Journal Reference:

  1. John R B Perry, Lisette Stolk, Nora Franceschini, Kathryn L Lunetta, Guangju Zhai, Patrick F McArdle, Albert V Smith, Thor Aspelund, Stefania Bandinelli, Eric Boerwinkle, Lynn Cherkas, Gudny Eiriksdottir, Karol Estrada, Luigi Ferrucci, Aaron R Folsom, Melissa Garcia, Vilmundur Gudnason, Albert Hofman, David Karasik, Douglas P Kiel, Lenore J Launer, Joyce van Meurs, Michael A Nalls, Fernando Rivadeneira, Alan R Shuldiner, Andrew Singleton, Nicole Soranzo, Toshiko Tanaka, Jenny A Visser, Michael N Weedon, Scott G Wilson, Vivian Zhuang, Elizabeth A Streeten, Tamara B Harris, Anna Murray, Tim D Spector, Ellen W Demerath, Andrι G Uitterlinden & Joanne M Murabito. Meta-analysis of genome-wide association data identifies two loci influencing age at menarche. Nature Genetics, May 17, 2009 DOI: 10.1038/ng.386

Cite This Page:

The Peninsula College of Medicine and Dentistry. "Genes That Influence Start Of Menstruation Identified For First Time." ScienceDaily. ScienceDaily, 21 May 2009. <www.sciencedaily.com/releases/2009/05/090517143215.htm>.
The Peninsula College of Medicine and Dentistry. (2009, May 21). Genes That Influence Start Of Menstruation Identified For First Time. ScienceDaily. Retrieved October 2, 2014 from www.sciencedaily.com/releases/2009/05/090517143215.htm
The Peninsula College of Medicine and Dentistry. "Genes That Influence Start Of Menstruation Identified For First Time." ScienceDaily. www.sciencedaily.com/releases/2009/05/090517143215.htm (accessed October 2, 2014).

Share This



More Health & Medicine News

Thursday, October 2, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Pregnancy Spacing Could Have Big Impact On Autism Risks

Pregnancy Spacing Could Have Big Impact On Autism Risks

Newsy (Oct. 1, 2014) — A new study says children born less than one year and more than five years after a sibling can have an increased risk for autism. Video provided by Newsy
Powered by NewsLook.com
Robotic Hair Restoration

Robotic Hair Restoration

Ivanhoe (Oct. 1, 2014) — A new robotic procedure is changing the way we transplant hair. The ARTAS robot leaves no linear scarring and provides more natural results. Video provided by Ivanhoe
Powered by NewsLook.com
Insertable Cardiac Monitor

Insertable Cardiac Monitor

Ivanhoe (Oct. 1, 2014) — A heart monitor the size of a paperclip that can save your life. The “Reveal Linq” allows a doctor to monitor patients with A-Fib on a continuous basis for up to 3 years! Video provided by Ivanhoe
Powered by NewsLook.com
Attacking Superbugs

Attacking Superbugs

Ivanhoe (Oct. 1, 2014) — Two weapons hospitals can use to attack superbugs. Scientists in Ireland created a new gel resistant to superbugs, and a robot that can disinfect a room in minutes. Video provided by Ivanhoe
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