Creating a free account will enable you to subscribe to our daily and weekly email newsletters, as well as customize your reading experience to show only the categories most relevant to you.
Signing up only take a few minutes, so why not give it a try and see what you've been missing out on.
Findings published in the American Association for the Study of Liver Diseases journal, Hepatology, indicate that infection, the commonest cause of mortality in patients with acute liver failure (ALF), may be decreased by inhibiting the activity of a protein found in saliva called SLPI (secretory leukocyte protease inhibitor). New research has found that this protein, produced by the body in response to injury, plays a vital role in patients with ALF.
Acute liver failure occurs when there is rapid death of liver cells (hepatocytes). According to the National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) drug-induced liver injury, particularly acetaminophen (Tylenol®) overdose, is the most common cause of acute liver failure in the U.S. and other developed countries. Previous studies have demonstrated that infection is the commonest complication in liver failure and is the leading cause of premature death in over 50% patients.
"Infection, namely sepsis, in patients with acute liver failure may be linked to an inadequate response of the body's immune system," explains Dr. C.G. Antoniades, an MRC Clinician Scientist from Imperial College London and King's College London. "Our study is the first to investigate the role of this particular protein in liver failure patients."
A team of scientists and clinicians at King's College London, King's College Hospital NHS Foundation Trust and Imperial College London studied 98 patients with liver failure as well as 24 healthy volunteers. Results show that patients with ALF had elevated levels of this key molecule (SLPI) in the liver and circulating round the body, that impaired the ability of immune cells, monocytes/macrophages, to combat infection. When researchers blocked the activity of the SLPI molecule the function of monocytes/macrophages was restored, similar that seen in healthy individuals. When SLPI protein was added to healthy immune cells, it rendered them poorly responsive to infectious organisms that are commonly encountered in patients with liver failure.
"Our findings indicate that SLPI is a critical mediator of excessive anti-inflammatory responses in ALF which explains the susceptibility to sepsis/infection in these patients," concludes Dr. Antoniades. "Further study of therapeutic options to inhibit the activity of SLPI in the management of sepsis in liver failure are needed."
Full citation: "Secretory Leukocyte Protease Inhibitor: A Pivotal Mediator of Anti-Inflammatory Responses in Acetaminophen Induced Acute Liver Failure." Charalambos Gustav Antoniades, Wafa Khamri, Robin D Abeles, Leonie S Taams, Evangelos Triantafyllou, Lucia A Possamai, Christine Bernsmeier, Ragai R Mitry, Alistair O'Brien, Derek Gilroy, Robert Goldin, Michael Heneghan, Nigel Heaton, Wayel Jassem, William Bernal, Diego Vergani, Yun Ma, Alberto Quaglia, Julia Wendon and Mark Thursz. Hepatology; (DOI: 10.1002/hep.26933).
Article adapted by Medical News Today from original press release. Click 'references' tab above for source.
Visit our Liver Disease / Hepatitis category page for the latest news on this subject.
Please use one of the following formats to cite this article in your essay, paper or report:
Wiley. "Preventing infection in patients with liver failure using novel potential approach." Medical News Today. MediLexicon, Intl., 14 Jan. 2014. Web.
17 Apr. 2014. <http://www.medicalnewstoday.com/releases/271071>
Wiley. (2014, January 14). "Preventing infection in patients with liver failure using novel potential approach." Medical News Today. Retrieved from
Please note: If no author information is provided, the source is cited instead.
If you write about specific medications, operations, or procedures please do not name healthcare professionals by name.
For any corrections of factual information, or to contact our editorial team, please use our feedback form. Please send any medical news or health news press releases to:
Note: Any medical information published on this website is not intended as a substitute for informed medical advice and you should not take any action before consulting with a health care professional. For more information, please read our terms and conditions.
This page was printed from: http://www.medicalnewstoday.com/releases/271071.php
Visit www.medicalnewstoday.com for medical news and health news headlines posted throughout the day, every day.
© 2004-2014 All rights reserved. MNT (logo) is the registered trade mark of MediLexicon International Limited.