Navigation Links
Genetic markers for testosterone and estrogen level regulation identified
Date:7/20/2012

A research study led by the Peninsula College of Medicine and Dentistry, University of Exeter, and Boston University School of Medicine, in collaboration with a global consortium, has identified genetic markers that influence a protein involved in regulating oestrogen and testosterone levels in the bloodstream.

The results, published online in PLoS Genetics, also reveal that some of the genetic markers for this protein are near genes related to liver function, metabolism and type 2 diabetes, demonstrating an important genetic connection between the metabolic and reproductive systems in men and women.

The study was carried out in collaboration with the Framingham Heart Study and investigators from 15 international epidemiologic studies participating in the Cohorts for Heart and Aging Research in Genetic Epidemiology (CHARGE) consortium.

Sex hormone binding globulin (SHBG) is the key protein that carries testosterone and oestrogen in the bloodstream in both men and women. As the main carrier of these sex hormones, SHBG helps to regulate their effects in different tissues and organs in the body. In addition to effects on reproduction in men and women through regulation of sex hormones, SHBG has been linked to many chronic diseases including type 2 diabetes and hormone-sensitive cancers such as breast and prostate.

Previous family studies have demonstrated that approximately 50 per cent of the variation in SHBG concentrations in the bloodstream is inherited from parents, suggesting that SHBG levels are under significant genetic control. However, little has been known about the specific genes that influence SHBG levels.

Investigators examined human genomes from 21,791 men and women to determine which genes influence SHBG levels and validated the results from this genome-wide association study (GWAS) in an additional 7,046 men and women. They identified 12 single-nucleotide polymorphisms (SNPs), or DNA sequence variations, associated with the concentration of SHBG circulating in the bloodstream. Although these genetic variants only explain a small fraction of the sex hormone variability seen between individuals, they could provide insight into the diseases connected to sex hormone regulation.

The results showed that the SNPs that influence SHBG levels are near genes related to liver function, fat and carbohydrate metabolism and type 2 diabetes. In addition, there were genes that had stronger effects in one sex compared to the other.

"These findings highlight the diverse range of biological processes that may be impacted by sex hormone regulation," said Dr. John Perry of the Peninsula College of Medicine and Dentistry, University of Exeter.


'/>"/>

Contact: Andrew Gould
andrew.gould@pcmd.ac.uk
44-188-438-346
The Peninsula College of Medicine and Dentistry
Source:Eurekalert

Related medicine news :

1. BUSM researchers identify genetic markers for testosterone, estrogen level regulation
2. Scientists discover melanoma-driving genetic changes caused by sun damage
3. Decline of immune system with aging may have a genetic cause
4. U-M researchers identify new genetic cause for chronic kidney disease
5. Turning off key piece of genetic coding eliminates toxic effect of statins, SLU research finds
6. Moffitt Cancer Center study validates activity of rare genetic variant in glioma
7. Trust hormone oxytocin found at heart of rare genetic disorder
8. Stanford study shows opiates side effects rooted in patients genetics
9. Holy glycosylation! New bat signal flags distressed cells in childhood genetic diseases
10. Study sheds new light on role of genetic mutations in colon cancer development
11. New Drug Effective for Rare Genetic Skin Cancer: Studies
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:3/24/2017)... ... March 24, 2017 , ... “Vintage and Harvest A Cultivation of Christian Love” ... teacher residing in North Carolina with his wife, Anna Marie. He and his wife ... grandchildren. David is also the author of “Shadow and Substance.” , “Love, the agape ...
(Date:3/23/2017)... NC & Seattle, WA (PRWEB) , ... March 23, 2017 , ... ... public health emergency and now estimates that there could be four million Zika-related cases ... growing epidemics to date with numbers of US cases reported per year skyrocketing to ...
(Date:3/23/2017)... , ... March 23, 2017 , ... ... services to their communities, 16 more public health departments have been awarded national ... bring another 4.5 million people into the expanding network of communities across the ...
(Date:3/23/2017)... ... March 23, 2017 , ... The IoT (Internet of Things) ... are making a huge impact on businesses and individual consumers alike. Laboratories can ... will have a value anywhere from $4 trillion to $11 trillion dollars by the ...
(Date:3/23/2017)... ... March 23, 2017 , ... ... services firm serving the families and businesses of the Norwalk and Vermillion ... Northern Ohio Recovery Center (N.O.R.A.) is a nonprofit, community-based substance abuse prevention ...
Breaking Medicine News(10 mins):
(Date:3/24/2017)... 2017  GenomeDx Biosciences today announced that six abstracts ... Prostate Cancer Classifier tests will be presented at the ... Congress held March 24 to 28, 2017 in ... is Europe,s largest urological event ... urological field. The abstract titled "Muscle invasive ...
(Date:3/24/2017)... March 23, 2017  Provectus Biopharmaceuticals, Inc. (OTCQB: ... a clinical-stage oncology and dermatology biopharmaceutical company, today ... Commitment Term Sheet (the "Definitive Financing") it entered ... the Company,s stockholders, who are referred to in ... Form 8-K filed with the Securities and Exchange ...
(Date:3/23/2017)... -- Mosaic Life Care, based in St. Joseph, Missouri , has ... of 58 clinics, located in 22 cities, and its flagship St. Joseph Medical Center. ... the delivery of health care to its patients, including the insurance, billing and collections ... ... Mosaic Life Care St. Joseph Medical Center ...
Breaking Medicine Technology: