Navigation Links
New study documents use of hormone progesterone in simple microscopic aquatic animals
Date:6/14/2010

ers gained further evidence of progesterone receptor's presence through the use of affinity chromatography, which used the same probe system to extract the receptor from a mixture of proteins contained in the rotifers. Further, mass spectrometry indicated the presence of progesterone at parts-per-billion levels in rotifer mass.

Finally, Snell and School of Biology research scientist Tonya Shearer demonstrated a direct connection between the hormone and the switch to sexual reproduction in the rotifers. They used RNA interference (RNAi) technology to silence the gene controlling the progesterone receptor, which reduced by nearly two-thirds the number of animals switching over to sexual reproduction in response to the progesterone signal.

"This suggests that progesterone is important in this switch from asexual to sexual reproduction," Stout said. "Progesterone is certainly involved in the process, though there may be more going on in a cascade process that we haven't yet seen."

Beyond explaining how chemical signaling mechanisms crucial to both rotifers and humans evolved over time, the research can also help researchers understand the interplay between the environment, metabolism, hormones and behaviors.

"We can learn things from working with rotifers that touch upon human biology, including in this case the universality of steroids in reproduction and how steroids are used differently in different animals," Kubanek said. "When we experiment with rotifers in the lab, we can manipulate their behavior, physiology and metabolic pathways to determine how these steroids are made and used."

Though the researchers were looking for progesterone in the rotifers, finding the same molecule that is essential to humans still came as a surprise.

"It's a very complex system for such a simple organism," said Stout, whose primary research focuses on complex potential pharmaceutical compounds produced by marine organisms su
'/>"/>

Contact: John Toon
jtoon@gatech.edu
404-894-6986
Georgia Institute of Technology Research News
Source:Eurekalert  

Page: 1 2 3 4

Related biology news :

1. Childhood obesity indicates greater risk of school absenteeism, Penn study reveals
2. A study by the MUHC and McGill University opens a new door to understanding cancer
3. Study begins to reveal clues to the cause and progression of sepsis
4. Clones on task serve greater good, evolutionary study shows
5. New study warns limited carbon market puts 20 percent of tropical forest at risk
6. New study examines how rearing environment can alter navigation
7. Study links cat disease to flame retardants in furniture and to pet food
8. New continent and species discovered in Atlantic study
9. Study shows link between alcohol consumption and hiv disease progression
10. Feeling hot, hot, hot: New study suggests ways to control fever-induced seizures
11. Study finds environmental tests help predict hospital-acquired Legionnaires disease risk
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
New study documents use of hormone progesterone in simple microscopic aquatic animals
(Date:7/31/2015)... 31. juli 2015 Den 10. internationale konference ... BGI fra den 22. - 25. oktober i ... sin 10-års fødselsdag i år. Siden starten i 2006 ... møder på ,omik,-feltet, og er en af de mest ... ICG-10 fokuserer på nylige gennembrud og fremskridt inden for ...
(Date:7/31/2015)... , 31 de julho de 2015 A ... www.icg-10.org ) será realizada pela BGI de 22-25 de outubro ... A conferência está celebrando seu 10 o. ... a ICG se tornou uma das reuniões mais influentes ... encontros científicos mais dinâmicos, entusiastas e prazerosos. ...
(Date:7/31/2015)... SHENZHEN, China , 31 de julio de 2015 /PRNewswire/ ... www.icg-10.org ) se celebrará por medio de BGI del 22 ... China . Este año, la conferencia ... 2006, ICG se ha convertido en una de las reuniones ... de ser una de las reuniones más dinámicas, entusiastas y ...
Breaking Biology News(10 mins):Den 10. internationale konference om Genomics (ICG-10) åbner i oktober 2A 10a. Conferência Internacional sobre Genômica (ICG-10) será em outubro 2A 10a. Conferência Internacional sobre Genômica (ICG-10) será em outubro 3La 10th International Conference on Genomics (ICG-10) se llevará a cabo en octubre 2La 10th International Conference on Genomics (ICG-10) se llevará a cabo en octubre 3
... power a large electric grid 99.9 percent of the ... expenses, according to new research by the University of ... combination of wind power, solar power and storage in ... demands while keeping costs low, the scientists found. ...
... insight into evolutional biology by tracing directionality in gene migration ... Masucci from the Centre for Advanced Spatial Analysis, at University ... genes that a marine plant underwent during its evolution. They ... populations of a marine plant went westward from the Mediterranean ...
... Radiation and chemotherapy can pack a powerful punch against ... often left with bad news: Their treatments have rendered ... that it is possible to remove testicular stem cells ... later, after cancer treatments, transplant these cells where they ...
Cached Biology News:Renewables and storage could power grid 99.9 percent of the time 2Renewables and storage could power grid 99.9 percent of the time 3Tracking gene flow in marine plant evolution 2Stem cell research provides hope for infertile cancer survivors 2
(Date:8/4/2015)... ANGELES , Aug. 4, 2015   California ... the recent acquisition of LifeLine Cryogenics, an east coast ... New York tristate area. LifeLine ... and all prepaid contracts will be honored. ... cryogenics services, offering storage of sperm, eggs, embryos, and ...
(Date:8/3/2015)... 3, 2015  Halozyme Therapeutics, Inc. (NASDAQ: HALO ... the second quarter 2015 on Monday, August 10, 2015 ... Torley , president and chief executive officer, will lead ... release financial results for the second quarter 2015. ... "Investors" section of Halozyme,s corporate website and a recording ...
(Date:8/3/2015)... , August 3, 2015 ... Portland Hospital waved the shortfall of ... could stand normally for the first time. ... (Photo: http://photos.prnewswire.com/prnh/20150803/254229 ) The Selective ... legs allowing him to carry out his wish to ...
(Date:8/3/2015)... London, UK (PRWEB) , ... August 03, 2015 ... ... largest consumer of benzene. Benzene is processed to get such derivatives as ethylbenzene, ... Ethylbenzene derivatives are principally used within the automotive industry for the production of ...
Breaking Biology Technology:FamilyCord Announces Acquisition of LifeLine Cryogenics 2Halozyme to Host Second Quarter 2015 Financial Results Conference Call 2Cerebral Palsy Operation by The Portland Hospital Allows a Boy to Stand Properly for the First Time 2Cerebral Palsy Operation by The Portland Hospital Allows a Boy to Stand Properly for the First Time 3World Benzene Market to Surpass 46 MMT by 2020, According to TechSci Research Report Published at MarketPublishers.com 2World Benzene Market to Surpass 46 MMT by 2020, According to TechSci Research Report Published at MarketPublishers.com 3
... Pharmaceutical Inc.,("Dragon" or the "Company" TSX: DDD; ... company, today announced it has retained,cQuest, a ... facilitate,and execute its investor and media relations ... capitalizations of less than $200,million to achieve ...
... March 17 STAAR Surgical,Company (Nasdaq: STAA ... invasive ophthalmic products, today announced that the Afinity,Collamer(R) ... been,designated as a New Technology Intraocular Lens (NTIOL) ... To receive NTIOL recognition an IOL,must first be ...
... &,Associates (LE&A) today announced it has added the West ... of health care clients., Based in Grand Rapids, ... state,s largest investor relations firm. The firm,will provide public ... life science industry is growing at a rapid rate ...
Cached Biology Technology:Dragon retains leading investor relations firm 2Dragon retains leading investor relations firm 3STAAR Surgical's Collamer(R) IOL Designated as a New Technology Intraocular Lens by the Centers for Medicare and Medicaid Services 2STAAR Surgical's Collamer(R) IOL Designated as a New Technology Intraocular Lens by the Centers for Medicare and Medicaid Services 3STAAR Surgical's Collamer(R) IOL Designated as a New Technology Intraocular Lens by the Centers for Medicare and Medicaid Services 4Lambert, Edwards & Associates Named Agency of Record for The West Michigan Science & Technology Initiative 2
6-carboxy-2',4,4',5',7,7'-hexachlorofluorescein, succinimidyl ester (6-HEX, SE) *single isomer*...
... Synthetic peptide derived from the C-terminal ... Specificity: Specific for the junctophilin-2 protein. ... skeletal muscle homogenates frozen mouse skeletal ... Immunohistochemistry(froz) ImmunofluorescenceStorage: Store at -20C for ...
Laminin gamma-2 (G-16)...
ABIN-2 Polyclonal Ab 100 ug rabbit polyclonal antibody. Detects ABIN-2 in human/mouse. Tested in WB....
Biology Products: