Navigation Links
Chronic Metamphetamine Abuse is Related to Cardiovascular Disease

Until about six years ago, methamphetamine use was seen mostly in the western and rural United States. Today, methamphetamine abuse has expanded rapidly throughout the rest of the country and across different ethnic groups. In recent years, the spread of methamphetamine abuse across the United States has been as rapid as it has been alarming.

According to the 2005 National Survey on Drug Use and Health (NSDUH), an estimated 10.4 million Americans ages 12 or older have used methamphetamine at least once in their lifetimes for non-medical reasons.

The study showed that long-term methamphetamine use changes endogenous proteins in drug users, causing aberrant immune responses. As a result, increased levels of proinflammatory cytokines-proteins involved in immune response-may be a previously unrecognized molecular mechanism for the development of cardiovascular disorders such as vasculitus, an inflammation of the blood vessels.

Our previous studies showed that methamphetamine can glycate or add sugars to proteins, said Scripps Research Professor Kim Janda, who conducted this study in collaboration with Scripps Research Assistant Professor Tobin Dickerson and other colleagues. In this study, we found that the immune system responds dramatically to this methamphetamine-induced glycation, which may lead to vascular inflammation and deterioration if left untreated. These problems are the direct result of long-term methamphetamine abuse.

Previous studies may have missed the impact of chronic methamphetamine use on the vascular periphery, Janda said, because they focused on the response of the microglia-the immune cells of the central nervous system-and the appearance of methamphetamine-related neurotoxicity in the central nervous system.

The study found that there was a direct relationship between methamphetamine intake and the level of circulating antibodies in animal models. This immune response, cou pled with antibodies binding to methamphetamine, might make the drug less biologically available leading to an increased need for higher and higher doses, a problem found among chronic methamphetamine users.

The resulting glycated proteins-called advanced glycation endproducts (AGEs)-are associated with a number of diseases including diabetes and Alzheimers disease. Long-lived AGEs can easily modify protein function, initiate adverse cellular reactions, and form damaging deposits on arterial walls.

Methamphetamine-AGE proteins not only increased antibody production, the study said, but were strong enough to overcome the drugs natural immunosuppressive qualities. In addition, a wide range of cytokines directly linked to AGE exposure were increased in rats that self-administered methamphetamine.

The study also showed that even limited daily access to the drug was enough to produce an over-expression of vascular endothelial growth factor (VEGF), a potent signaling cytokine involved in angiogenesis and vasodilation. Our data suggest that even methamphetamine use at lower doses may be enough to increase VEGF to potentially detrimental levels, Janda said.

In addition to Janda and Dickerson, both of Scripps Researchs Skaggs Institute for Chemical Biology and Worm Institute for Research and Medicine, authors of the study, Self-Vaccination by Methamphetamine Glycation Products Chemically Links Chronic Drug Abuse and Cardiovascular Disease, include Scripps Research investigators Jennifer Treweek, George F. Koob, and Sunmee Wee.


'"/>




Related medicine news :

1. Roller coasters – cause “Chronic Headache?
2. In Chronic Diseases - Poor compliance of Patients with drug treatment
3. New Treatment for Chronic Eczema
4. Novel Therapy for Chronic Problem
5. Overcoming Chronic Fatigue
6. Chronic Fatigue, Pain Linked to Sinusitis
7. Chronic Diseases said to Cause Falls in the Elderly
8. Epilepsy Drug May Relieve Chronic Headaches
9. Women Worse Affected By Chronic Cough
10. A Drug That Might Relieve Chronic Cough
11. A Sedentary Childhood Could Lead To Chronic Fatigue Latter In Life
Post Your Comments:
*Name:
*Comment:
*Email:


(Date:10/13/2017)... (PRWEB) , ... October 13, 2017 , ... ... established the certification process to promote standards of excellence for the field of ... scheduled for March 22 – 25, 2018 in Orlando, Florida at the Omni ...
(Date:10/13/2017)... ... 2017 , ... Lori R. Somekh, founder of the Law Office of ... elder law and special needs planning attorneys. “Membership in ElderCounsel helps our office remain ... to network with elder law attorneys nationwide,” said Somekh. , ElderCounsel ...
(Date:10/13/2017)... ... October 13, 2017 , ... The Visiting Nurse Association (VNA) of ... collection of specialty vendors and unique items from across the nation, this holiday-themed event ... wellness services offered by the VNA. The boutique will be open Saturday, November ...
(Date:10/13/2017)... ... October 13, 2017 , ... Yisrayl Hawkins, Pastor and Overseer at The House ... most popular and least understood books in the Holy Scriptures, Revelation. The Book of ... baffled scholars for centuries. Many have tossed it off as mere rubbish, but Yisrayl ...
(Date:10/13/2017)... ... ... Journey: From the Mountains to the Mission Field”: the story of a missionary couple ... From the Mountains to the Mission Field” is the creation of published author, Carole ... and currently teaches a class of ladies at her church, which she has taught ...
Breaking Medicine News(10 mins):
(Date:10/10/2017)... , Oct. 10, 2017   West Pharmaceutical ... innovative solutions for injectable drug administration, today shared the ... ID Adapter for improving the intradermal administration of polio ... Skin Vaccination Summit in May 2017 by Dr. ... Polio Department, World Health Organization (WHO), and recently published ...
(Date:10/4/2017)... 4, 2017 OBP Medical , ... medical devices, today announced regulatory approval from ... (or Agência Nacional de Vigilância Sanitária (ANVISA)) to ... surgical retractor with integrated LED light source and ... and exposure of a tissue pocket or cavity ...
(Date:10/2/2017)... Denmark , Oct. 2, 2017 The Rebound ... in the struggle to reverse the tide of prescription drug ... for regulating their medicine intake and stepping down their dosage ... set to launch in December 2017; the first 100,000 people ... Learn more at http://www.rebound-solution.com/ ...
Breaking Medicine Technology: