HOME >> MEDICINE >> NEWS
Untangling prostaglandin signaling

Prostaglanin E2 (PGE2)signaling contributes to each of the manifestations that classically define inflammationredness, heat and pain. Although non-steroidal anti-inflammatory drugs (NSAIDs) such as aspirin are well kown to inhibit this pathway by blocking prostaglandin biosynthesis, more specific agents would be useful, given the disparate biological responses that prostaglanins mediate. Stock et al. now report the genetic disruption of the PGE2 receptor EP1, one of 4 such receptors, is responsible for pain perception and the regulation of blood pressure, 2 of the cardinal physiological responses to PGE2 signaling. The authors find that pained behavior by animals treated to provoke inflammation of the gut is decreased by half in the EP1-/- strain. Remarkably, NSAID treatment causes a similar 50% diminution of such responses in wild type mice and has little or no additional benefit in mutant animals, suggesting that most of the analgesic effect of these drugs can be explained by their inhibition of signaling through this single receptor type.

Stock and colleagues also observe a drop in systolic blood pressure in male mutants, which they attribute to impaired maintenance of the extracellular fluid volume. They also note that other aspects of blood pressure regulation have been found to occur differently in males and females, both in humans and in experimental animals. Thus, although pure EP1 antagonists might prove powerful and relatively specific analgesics, such drugs might also be expected to diminish blood pressure in men.


'"/>

Contact: John Ashkenas
scied@the-jci.org
416-946-7593
Journal of Clinical Investigation
30-Jan-2001


Page: 1

Related medicine news :

1. Understanding how prostaglandin prevents gut injury during radiation therapy
2. USC researchers find evidence that progesterone signaling influences ovarian cancer risk
3. Pancreatic cancer linked to developmental cell signaling pathway

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


(Date:10/13/2017)... ... October 13, 2017 , ... Coveros, ... Development, has been awarded a contract by the Center for Medicare and Medicaid ... to accelerate the enterprise use of Agile methodologies in a consistent and high ...
(Date:10/12/2017)... ... October 12, 2017 , ... First Healthcare Compliance (FHC), ... will showcase a range of technology and learning solutions at the 68th Annual ... Expo to be held October 14–18, 2017 at the Mandalay Bay Resort in ...
(Date:10/12/2017)... ... October 12, 2017 , ... The company has developed ... consumer and regulatory authorities worldwide. From Children’s to Adults 50+, every formula has ... highest standard. , These products are also: Gluten Free, Non-GMO, Vegan, Soy ...
(Date:10/12/2017)... ... October 12, 2017 , ... Asante, ... post-acute health care, have expanded their existing home health joint venture through an ... has been operating a joint venture home health company with Asante, delivering clinically ...
(Date:10/12/2017)... ... October 12, 2017 , ... HMP , a leader in ... 2017 Folio Magazine Eddie Digital Award for ‘Best B-to-B Healthcare Website.’ Winners were announced ... 2017. , The annual award competition recognizes editorial and design excellence across a range ...
Breaking Medicine News(10 mins):
(Date:10/11/2017)...  Hill-Rom Holdings, Inc. ("Hill-Rom") (NYSE: HRC), today provided ... Piedras, Puerto Rico , where the ... Following a comprehensive onsite ... structural damage, temporary loss of power and minimal water ... manufacturing operations have resumed, and the company expects to ...
(Date:10/10/2017)... Pa. , Oct. 10, 2017   West ... in innovative solutions for injectable drug administration, today shared ... West,s ID Adapter for improving the intradermal administration of ... Fourth Skin Vaccination Summit in May 2017 by Dr. ... Lead, Polio Department, World Health Organization (WHO), and recently ...
(Date:10/5/2017)... Ill. , Oct. 5, 2017  In ... Association of Oral and Maxillofacial Surgeons (AAOMS) released ... opioids – to be used as a first-line ... pain. Recognizing ... the AAOMS White Paper "Opioid Prescribing: Acute and ...
Breaking Medicine Technology:
Cached News: