HOME >> BIOLOGY >> NEWS
New research on mulitple vs single births may offer new approaches for infertility

The multiple "litter" births of mice, versus the normal singleton pregnancy of humans, is due to defective processing in mice of a common mammalian protein called bone morphogenetic protein 15 (BMP-15), according to new study by University of California, San Diego (UCSD) School of Medicine researchers.

Published online the week of April 4, 2005 in Proceedings of the National Academy of Sciences, and appearing in the journal's April 12, 2005 print edition, the study provides one of the first insights into the physiological mechanisms responsible for multiple births and suggests a potential therapeutic target for infertility and contraception.

"Infertility is a major problem for many couples," said the study's senior author, Shunichi Shimasaki, Ph.D., UCSD professor of reproductive medicine. "Based on our findings, it is possible that therapeutic regimens targeting BMP-15 could offer exciting new opportunities for novel treatments for female infertility. On the other side of the coin, BMP-15 could also serve as a new target for non-steroidal contraceptives."

Recently, scientists have found that BMP-15 produced by eggs developing in the ovary plays an important role in determining ovulation quota, which results in litter size in mammals. In laboratory studies with human and mouse models, the UCSD team found specific differences between mice and humans in the way BMP-15 is produced and secreted by cells.

While BMP-15 was found to be readily produced and normal in humans, its production in mice was degraded before it could become a mature protein. BMP-15 controls the number of follicles that become competent to ovulate, resulting in singleton or twin gestations in humans and sheep. In mice, however, the impaired BMP-15 caused early development of follicles, leading to an increase in egg production and ovulation.

"How humans restrict their pregnancies to single or twin births while many other animals have such large litters
'"/>

Contact: Sue Pondrom
spondrom@ucsd.edu
619-543-6163
University of California - San Diego
5-Apr-2005


Page: 1 2

Related biology news :

1. NIH gives $8M to University of Pittsburgh School of Medicine for myositis research
2. Saudi Arabias KAUST names WHOI first research partner
3. Multinational research: protecting ecology means understanding people, too
4. Newly created cancer stem cells could aid breast cancer research
5. Carnegie Mellons Peter Adams receives EPA research grant
6. Almac Diagnostics announces pioneering genetic research on ductal carcinoma in situ
7. Innovative tagging technique may help researchers better protect fish stocks
8. Penn researchers discover how key protein stops inflammation
9. UCF research links proteins, stem cells and potential Alzheimers treatment
10. ASU researchers partner with UOP to make biofuel for military jets a reality
11. Einstein researchers prototype vaccine could provide improved protection against tuberculosis

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:8/26/2020)... ... August 25, 2020 , ... ... mitochondria, in partnership with Essex Bio-Technology, a bio-pharmaceutical company specializing in Ophthalmology ... VISTA-2 study of SkQ1 ophthalmic solution in patients with moderate to severe ...
(Date:8/26/2020)... ... ... Modality Solutions, a biopharmaceutical cold chain validation engineering firm, is ... is the most prestigious ranking of the nation’s fastest-growing private companies. Modality Solutions made ... three-year revenue growth of 71 percent. , The Inc. 5000 list represents a ...
(Date:8/21/2020)... ... August 18, 2020 , ... Sentien Biotechnologies, Inc., ... the U.S. Food and Drug Administration (FDA) has approved the company’s Investigational New ... treatment of severe COVID-19. Approval of this IND allows Sentien to initiate a ...
Breaking Biology News(10 mins):
(Date:7/31/2020)... ... July 29, 2020 , ... Diversified ... systems that can be configured to drive Klystrons, TWTs, IOTs, and magnetrons. , ... one or two switches in a push-pull configuration; yielding fast fall time for ...
(Date:7/31/2020)... ... July 30, 2020 , ... ... software for the life sciences industry, today announced the release of its ... specifically for Medical Science Liaisons (MSLs) and other field medical professionals. ...
(Date:7/18/2020)... ... July 17, 2020 , ... ... firm for the life sciences and food industries, is pleased to announce that ... Clinical Research – Business Development. , Charles is an accomplished and results-driven sales ...
(Date:7/7/2020)... (PRWEB) , ... July 06, 2020 , ... R3 International ... program featuring up to 200 million stem cells. Depending on the patient's condition, treatment ... in the US will die having some form of Alzheimers dementia, and the incidence ...
Breaking Biology Technology:
Cached News: