Navigation Links
Use of naltrexone reduces inflammation in Crohn's patients
Date:5/19/2011

Naltrexone reduced inflammation in Crohn's patients in a research study at Penn State College of Medicine.

Crohn's disease is a chronic inflammatory condition of the gastrointestinal tract causing abdominal pain, diarrhea, gastrointestinal bleeding and weight loss. Treatments for Crohn's disease are designed to reduce the inflammation but may be associated with rare but serious side effects, including infections and lymphoma. Research suggests that endorphins and enkephalins, part of the opioid system, have a role in the development or continuation of inflammation.

Naltrexone is a drug used to help recovering alcoholics and drug users stay clean. It inhibits the body's opioid system that regulates pain and is involved in cell growth, repair and inflammation. Naltrexone binds to a protein receptor that blocks the effects of opioids, including the body's own enkephalins and endorphins, substances that reduce pain and produce a feeling of wellbeing.

"Although the cause of Crohn's disease is unknown, research suggests it involves a complex interplay of environmental, genetic, microbial, immune and nonimmune factors," said Jill P. Smith, M.D., professor of medicine. "We hypothesize that the opioid system is involved in inflammatory bowel disease and that interfering with an opioid receptor will lead to the reversal of the inflammation."

Researchers studied 40 patients with active Crohn's disease. Patients received either naltrexone or a placebo for 12 weeks. All patients then continued on naltrexone for an additional 12 weeks. This was a double-blind study with neither the patient or healthcare provider knowing which treatment was being received.

Eighty-eight percent of those treated with naltrexone had at least a 70-point decline in Crohn's Disease Activity Index scores compared to 40 percent of placebo-treated patients. CDAI is a point system used to quantify symptoms in Crohn's patients. Researchers noted no statistical difference at four or eight weeks of treatment, suggesting a response requires at least 12 weeks of treatment. Results were published in the journal Digestive Diseases and Sciences.

Gastrointestinal inflammation was evaluated by appearance of the intestine on colonoscopy and scores from biopsy specimens. After 12 weeks, researchers noted no change in those taking a placebo. However, 78 percent of those on naltrexone experienced healing in the lining of the intestine.

For those patients who received a placebo for 12 weeks and then were placed on naltrexone for the following 12 weeks, 70 percent experienced at least a 70-point decline in the CDAI score and healing of the colon as seen on colonoscopy. Patients who continued use of naltrexone for an additional 12 weeks (24 total weeks) had a further 75-point decline in CDAI scores, leading to remission (score of less than 150) in 50 percent of the patients.

"We report that naltrexone improves clinical and inflammatory activity of subjects with moderate to severe Crohn's disease compared to placebo-treated controls," Smith said.

The researchers are planning clinical trials to look at use of naltrexone in children with Crohn's disease and have secured orphan drug status from the Food and Drug Administration for the use of naltrexone in children with Crohn's disease. Smith and Zagon hold a patent for the use of naltrexone in inflammatory bowel disease -- Crohn's disease and ulcerative colitis.


'/>"/>

Contact: Matthew Solovey
msolovey@hmc.psu.edu
717-531-8606
Penn State
Source:Eurekalert

Related medicine news :

1. Service Foods Reduces its Carbon Footprint and Grows Sales
2. Health Care Reform Report Covers Uninsured, Reduces Costs
3. New cardiac CT technology drastically reduces patient radiation exposure
4. Accelerated radiation therapy reduces toxicity in patients with advanced head and neck cancers
5. Targeted delivery of losartan reduces liver inflammation and scarring
6. Drug dramatically reduces nausea and vomiting in bone marrow transplant patients
7. Soccer reduces risk of falls and bone fractures
8. Pioneering treatment reduces disability in premature babies with serious brain hemorrhage
9. New drug candidate reduces blood lipids
10. PSA Test Reduces Prostate Cancer Deaths by 40%
11. New technique reduces tobacco smoke damage to lungs in mice
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/8/2016)... ... December 08, 2016 , ... Premier Fitness Camp (PFC) ... , the ultimate weight loss and wellness program, at their world headquarters of Omni ... provide immediate and long-term results to anyone seeking weight loss, personal development, a healthy ...
(Date:12/8/2016)... ... December 08, 2016 , ... ... to its innovative Unified Instance Manager architecture, meeting the needs of multichannel ... version optimizes the unattended auto-dialing system without agents, Presence Robodialer, provides greater ...
(Date:12/8/2016)... ... , ... STATEN ISLAND, N.Y., Nov. 24, 2016 — ... standards of trauma, maternity, cancer and chronic obstructive pulmonary disease (COPD) services from ... Messina. , Among the recognitions, the American College of Surgeons' (ACS) named the ...
(Date:12/8/2016)... MA (PRWEB) , ... December 08, 2016 , ... California ... in medical payments per workers’ compensation claim in 2013 and 2014, according to ... Compensation Research Institute (WCRI) . , According to the study, medical payments per claim ...
(Date:12/8/2016)... ... December 08, 2016 , ... ... Affordable Care Act. Dr. Botelho advocates for the mass media launching of story ... people ongoing opportunities to share their unfortunate experiences; such a movement can generate ...
Breaking Medicine News(10 mins):
(Date:12/8/2016)... 2016 Information products and services provider ... Scopus , the world,s largest abstract and citation database of ... for journals from over 5,000 publishers. The new set of metrics ... to and when to adjust a journal,s editorial strategy. ... , , ...
(Date:12/8/2016)... 8, 2016 Dignitana, a world leader in ... Boa® Technology, creator of the award-winning, patented Boa® system, ... with the DigniCap® scalp cooling system. DigniCap® was cleared ... 2015, and is the first medical scalp cooling device ... cooling system features a patented tight-fitting silicone cooling cap ...
(Date:12/8/2016)... PUNE, India , December 8, 2016 /PRNewswire/ ... research report "Sugar-Based Excipients Market by Product (Actual ... Syrup), Functionality (Filler & Diluent, Tonicity Agents), Formulation ... published by MarketsandMarkets, the market has witnessed healthy ... to grow at a CAGR of 4.3% between ...
Breaking Medicine Technology: