Featured Research

from universities, journals, and other organizations

Lean patients with fatty liver disease have higher mortality rate

Date:
May 4, 2014
Source:
Digestive Disease Week
Summary:
Despite being of a healthier weight, lean patients with nonalcoholic fatty liver disease (NAFLD) have a higher overall mortality rate than patients with NAFLD who are overweight or obese, according to new research.

Despite being of a healthier weight, lean patients with nonalcoholic fatty liver disease (NAFLD) have a higher overall mortality rate than patients with NAFLD who are overweight or obese, according to new research presented today at Digestive Disease Week® (DDW). In addition to finding higher mortality rates, an international team of researchers found that lean patients [a body mass index (BMI) less than 25] with NAFLD were more likely to be male, non-Caucasian and to have lower rates of chronic conditions, such as diabetes and hypertension.

Related Articles


"Our comparison of lean patients and their overweight or obese counterparts gives us clues about risk factors for this disease that go beyond a person's weight," said Paul Angulo, MD, section chief of hepatology in the division of digestive diseases and nutrition at the University of Kentucky Medical Center. "These findings have implications both for future research and for current standards of care. We must not assume that patients of relatively healthy weight can't have fatty liver disease."

The retrospective study is the first of its kind in detailing the characteristics of a large number of lean patients with NAFLD. The study examined more than 20 years' worth of clinical and laboratory data of more than 1,000 patients with biopsy-confirmed NAFLD. Lean patients had an average BMI of 23 and the non-lean group had an average BMI of 33.

The lean group had significantly less insulin resistance as well as lower levels of a liver enzyme called alanine aminotransferase (ALT) that correlates with liver damage. And while lean patients had a lower degree of fatty deposits on the liver and less advanced fibrosis, these patients showed more severe inflammation of the liver.

Of the 1,090 patients, liver biopsy was done before 2005 in 483 patients. In this subgroup, nine of the 32 (28 percent) lean patients died compared to 62 of the 451 (14 percent) overweight or obese patients. In examining the specific cause of mortality, researchers did not find any differences between the two groups.

"About 30 percent of the U.S. population suffers from NAFLD, and the prevalence of this condition is increasing. Although we often associate fatty liver disease with obese patients, these results suggest that possible signs of liver disease secondary to NAFLD in lean patients should be taken very seriously," said Dr. Angulo.

Dr. Angulo and his team plan to expand on their findings about this specific patient population by examining data beyond BMI, including fat distribution and differences in cell signaling proteins, such as cytokine and adipokine profiles. They also plan to include patients who have not yet had a liver biopsy.


Story Source:

The above story is based on materials provided by Digestive Disease Week. Note: Materials may be edited for content and length.


Cite This Page:

Digestive Disease Week. "Lean patients with fatty liver disease have higher mortality rate." ScienceDaily. ScienceDaily, 4 May 2014. <www.sciencedaily.com/releases/2014/05/140504182220.htm>.
Digestive Disease Week. (2014, May 4). Lean patients with fatty liver disease have higher mortality rate. ScienceDaily. Retrieved December 27, 2014 from www.sciencedaily.com/releases/2014/05/140504182220.htm
Digestive Disease Week. "Lean patients with fatty liver disease have higher mortality rate." ScienceDaily. www.sciencedaily.com/releases/2014/05/140504182220.htm (accessed December 27, 2014).

Share This


More From ScienceDaily



More Health & Medicine News

Saturday, December 27, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Healthier Lifestyles Could Prevent 4 In 10 Cancer Cases

Healthier Lifestyles Could Prevent 4 In 10 Cancer Cases

Newsy (Dec. 26, 2014) — If patients had led healthier lifestyles, Cancer Research UK found about 40 percent of cancer cases could have been prevented. Video provided by Newsy
Powered by NewsLook.com
When Healthy Eating Becomes Dangerous

When Healthy Eating Becomes Dangerous

Newsy (Dec. 26, 2014) — Experts say fad diets can lead to orthorexia, a disorder that can cause physical and emotional distress. Video provided by Newsy
Powered by NewsLook.com
FDA Issues New Warning About Pure Caffeine Powder Usage

FDA Issues New Warning About Pure Caffeine Powder Usage

Newsy (Dec. 24, 2014) — The FDA cites two deaths this year linked to pure caffeine powder as warnings of the potentially fatal substance. Video provided by Newsy
Powered by NewsLook.com
Alarming CDC Lab Report Reveals Ebola Sample Mix-Up

Alarming CDC Lab Report Reveals Ebola Sample Mix-Up

Newsy (Dec. 24, 2014) — The Centers for Disease Control and Prevention released a report claiming a lab tech in Atlanta might have been exposed to the Ebola virus. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:

Strange & Offbeat Stories

 

Health & Medicine

Mind & Brain

Living & Well

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:  

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile iPhone Android Web
Follow Facebook Twitter Google+
Subscribe RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins