HOME >> MEDICINE >> NEWS
Enzyme structure holds key to cocaine, heroin metabolism

dose victim, the enzyme could help metabolize the cocaine before it became toxic, he said.

Heroin poses another problem. It has no activity on its own. "It needs to be broken down a little in the body to make morphine," Redinbo said. "It's morphine's activity, hitting opioid receptors in the brain, that provides the feeling of complacency and peace associated with heroin use."

In terms of using hCE1 against chemical weapons, Redinbo said the U.S. military is aggressively seeking to develop the enzyme as a battlefield prophylactic that could be used to detoxify sarin, soman, tabun and VX gases. Chemically, these nerve agents are organophosphate poisons, similar in structure to agricultural weed control chemicals.

"Without the crystal structure, they have been making educated guesses as to where to make changes in the enzyme that would increase its efficiency in detoxifying these agents," said Redinbo. "Now, knowledge of the crystal structure takes much of the guesswork out of identifying the most effective modifications."

The military's idea is to inject its people with protective enzymes prior to battle, he said; these enzymes have a long serum half-life and could offer several days of protection.

"These chemical weapons kill by impacting nerve endings throughout the body, including in the respiratory system. One could inject or inhale the protectant, and it's not likely to cause an immune reaction because it's a human protein," Redinbo said.

It also appears that the enzyme plays a role in cholesterol metabolism - namely, cholesterol transport into and out of the liver. "Its primary evolutionary role may be this function," said study lead author Sompop Bencharit, a chemistry graduate student in Redinbo's laboratory.

"Our crystal structures of hCE1 will enable the development of highly selective and efficient forms of the enzyme for use in a variety of civilian and military settings," the report said. "The engineering of novel hCE
'"/>

Contact: Leslie H. Lang
llang@med.unc.edu
919-843-9687
University of North Carolina School of Medicine
8-Apr-2003


Page: 1 2 3

Related medicine news :

1. Enzyme linked to mania and schizophrenia impairs higher brain functions
2. Enzyme prevents lung damage in premature infants
3. Enzyme found in blood vessels likely target to treat lung injury
4. Enzyme replacement therapy found to effectively treat patients with Fabry disease
5. Enzyme level linked to death after angioplasty
6. Enzyme halts muscle waste in mouse models of most-common childhood muscular dystrophy
7. Enzyme could provide continual fat burning
8. Cocaine addicts show reduced brain structure that underlies judgment
9. Brain structure implicated in early onset depression
10. Scientists grow neurons using nanostructures
11. Drug improves brain structure in Alzheimers patients

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


(Date:10/13/2017)... ... October 13, 2017 , ... ... Randall, PharmD ‘17, and Jennifer Huggins, PharmD ’17, along with clinical associate ... primary prevention of cardiovascular diseases during the 15th Annual Women’s Health Conference. ...
(Date:10/13/2017)... ... October 13, 2017 , ... Ellevate Network, the leading network ... advocate for action towards gender equality at their inaugural Summit in New York City ... and reached a social audience of over 3 million. To watch the Mobilize Women ...
(Date:10/13/2017)... ... ... “The Journey: From the Mountains to the Mission Field”: the story of a ... “The Journey: From the Mountains to the Mission Field” is the creation of published ... all ages and currently teaches a class of ladies at her church, which she ...
(Date:10/12/2017)... ... 2017 , ... The company has developed a suite of ... authorities worldwide. From Children’s to Adults 50+, every formula has been developed by ... , These products are also: Gluten Free, Non-GMO, Vegan, Soy Free, Non-Dairy*, Preservative ...
(Date:10/12/2017)... ... October 12, 2017 , ... Dr. Parsa Mohebi, the ... medical article to the newly revamped Cosmetic Town journal section, featuring ... transplant procedure known as Follicular Unit Extraction (FUE). , Dr. Mohebi ...
Breaking Medicine News(10 mins):
(Date:10/2/2017)... Lilly and Company (NYSE: LLY ) will ... 2017 on Tuesday, October 24, 2017. Lilly will also ... investment community and media to further detail the company,s ... at 9 a.m. Eastern time. Investors, media and the ... conference call through a link that will be posted ...
(Date:10/2/2017)... The Rebound mobile app is poised to become a vital ... prescription drug addiction. The app empowers users to develop an ... their dosage in a safe, controlled manner while maximizing well-being. ... 100,000 people to sign up will enjoy 3 months of ... ...
(Date:9/27/2017)... MIAMI , Sept. 27, 2017  Commended for their ... recent notable awards. Ranked as number one in the South ... ninth time in Inc. 5000 yearly list, the national specialty ... CEO, Armando Bardisa will soon be honored by ... Set to receive his award ...
Breaking Medicine Technology:
Cached News: