Navigation Links
Scientists Discover New RNAs in Mouse Testicles

London, June 6. A genetic cousin of DNA has been discovered in mouse testicles. These are a new class of small RNAs. Small RNAs are known to regulate key processes in human health //.

RNA interference is one important way that the body can shut off genes of the invading pathogens.

Greg Hansom of Cold Spring Harbor Laboratory in New York and Thomas Tuschl at the Rockefeller University, also in the same US city, found the new class of RNAs by cataloguing the entire RNA content of mouse testicles, according to the Monday issue of the magazine Nature.

The scientists decided to check whether the new RNAs might be associated with a set of mysterious yet important proteins, called Piwi proteins, which are expressed in the testicles, and when shut off, mice are unable to make normal sperm.

The scientists pulled individual Piwi proteins out of mouse testis and checked what came along with them and found strands of the mysterious new RNAs stuck to the Piwi proteins.

They have named the new molecules 'Piwi-interacting RNAs' - piRNAs for short.

The scientists also know that similar types of RNAs exist in zebrafish and flies, and in human testes.

Given that mice need piRNAs and Piwi proteins to make sperm, the scientists are now intrigued by the idea that piRNAs and Piwi proteins might control some of the huge changes that give rise to sperm - for instance, the cell divisions that halve a cell's genetic material in the process of meiosis.

The scientists said it was clear that the new discovery is another promising lead in the fast-moving RNA field.

(Source:Xinhua/ IANS News)

Page: 1

Related medicine news :

1. Scientists plan human cloning clinic in the United States
2. Scientists found ancient Human Germ Killer
3. Scientists locate key hormone involved in appetite control
4. Scientists open the book of life
5. Scientists review SARS
6. Scientists crack dengue fever puzzle
7. Scientists push to lower hidden sodium in food
8. Indian Scientists Make Wide-Ranging Analysis And Annotation Of X Chromosome
9. Scientists have found effective brain regions for deep brain stimulation for Parkinson’s
10. Scientists reveal the secrets of sarcasm
11. Scientists Unveil Mechanism Behind Resistance to Severe Malaria
Post Your Comments:

(Date:10/13/2017)... ... October 13, 2017 , ... Lori R. Somekh, founder of the Law ... organization of elder law and special needs planning attorneys. “Membership in ElderCounsel helps our ... a forum to network with elder law attorneys nationwide,” said Somekh. , ...
(Date:10/13/2017)... ... October 13, 2017 , ... The Visiting Nurse Association (VNA) of Somerset ... of specialty vendors and unique items from across the nation, this holiday-themed event will ... services offered by the VNA. The boutique will be open Saturday, November 4 ...
(Date:10/13/2017)... ... ... Yisrayl Hawkins, Pastor and Overseer at The House of Yahweh, has released ... understood books in the Holy Scriptures, Revelation. The Book of Revelation paints a picture ... Many have tossed it off as mere rubbish, but Yisrayl Hawkins says that is ...
(Date:10/13/2017)... ... October 13, 2017 , ... “The Journey: From the Mountains to the Mission ... lost souls in the Philippines. “The Journey: From the Mountains to the Mission Field” ... the Bible. She has taught all ages and currently teaches a class of ladies ...
(Date:10/12/2017)... ... October 12, 2017 , ... CitiDent ... sleep apnea using cutting-edge Oventus O2Vent technology. As many as 18 million ... by frequent cessation in breathing. Oral appliances can offer significant relief to about ...
Breaking Medicine News(10 mins):
(Date:10/12/2017)... SAN DIEGO , Oct. 12, 2017   Divoti ... Medical Alert Jewelry up to the standard of the latest FDA ... (Launched: June 2017). Anyone in need of Medical ID ... Divoti Medical Alert Jewelry are engraved in terms of the ... ...
(Date:10/11/2017)... 11, 2017  Hill-Rom Holdings, Inc. ("Hill-Rom") (NYSE: HRC), ... in Las Piedras, Puerto Rico , ... Following a ... sustained minor structural damage, temporary loss of power and ... been completed, manufacturing operations have resumed, and the company ...
(Date:10/4/2017)... , Oct. 4, 2017  South Korean-based healthcare product ... training aide "cprCUBE" on Kickstarter. The device will educate ... cardiac arrests with better efficiency compared to the dated ... real-time feedback on efficacy of the compression for a ... has a goal to raise $5,000. ...
Breaking Medicine Technology: