Featured Research

from universities, journals, and other organizations

Vitamin A Deficiency Linked To Major Intestinal Surgery

Date:
June 15, 2006
Source:
BMJ Specialty Journals
Summary:
Major intestinal surgery, including stomach reduction for obesity, may boost the chances of subsequent vitamin A deficiency, suggests a small study published ahead of print in the British Journal of Ophthalmology.

Major intestinal surgery, including stomach reduction for obesity, may boost the chances of subsequent vitamin A deficiency, suggests a small study published ahead of print in the British Journal of Ophthalmology.

Related Articles


The researchers base their findings on three patients with increasingly poor eyesight or night blindness, who attended a specialist eye clinic within the space of a year. None of the patients had a family or personal history of eye problems.

All three patients, who were all over the age of 65, had had extensive intestinal surgery between 20 and 35 years earlier.

The operations included intestinal bypass, surgical removal of diseased tissue as a result of inflammatory bowel disease, and gallbladder removal.

All the patients were diagnosed with vitamin A deficiency, and this was in spite of them having taken vitamin supplements.

One of the patients refused injections of vitamin A into the muscles. But the other two went ahead with this treatment, which prompted an improvement in their vision within days.

Vitamin A deficiency is the leading cause of childhood blindness in developing countries, and is caused by malnutrition. It is rare in affluent, developed countries, where it is mainly caused by poor absorption or abnormal metabolism.

A fat soluble vitamin, it is absorbed through the small intestine as either retinol or carotene, and stored in the liver for up two years and transported to tissues as needed.

Vitamin A is essential for the healthy working of the photosensitive pigment and superficial tissues of the eye. Night blindness is one of the most common symptoms of vitamin A deficiency.

The authors warn that the increasing popularity of gastric banding and gastric bypass, the surgical treatments for obesity, is making vitamin A deficiency increasingly common in the developed world.


Story Source:

The above story is based on materials provided by BMJ Specialty Journals. Note: Materials may be edited for content and length.


Cite This Page:

BMJ Specialty Journals. "Vitamin A Deficiency Linked To Major Intestinal Surgery." ScienceDaily. ScienceDaily, 15 June 2006. <www.sciencedaily.com/releases/2006/06/060615075458.htm>.
BMJ Specialty Journals. (2006, June 15). Vitamin A Deficiency Linked To Major Intestinal Surgery. ScienceDaily. Retrieved November 22, 2014 from www.sciencedaily.com/releases/2006/06/060615075458.htm
BMJ Specialty Journals. "Vitamin A Deficiency Linked To Major Intestinal Surgery." ScienceDaily. www.sciencedaily.com/releases/2006/06/060615075458.htm (accessed November 22, 2014).

Share This


More From ScienceDaily



More Health & Medicine News

Saturday, November 22, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

WFP: Ebola Risks Heightened Among Women Throughout Africa

WFP: Ebola Risks Heightened Among Women Throughout Africa

AFP (Nov. 21, 2014) Having children has always been a frightening prospect in Sierra Leone, the world's most dangerous place to give birth, but Ebola has presented an alarming new threat for expectant mothers. Duration: 00:37 Video provided by AFP
Powered by NewsLook.com
Could Your Genes Be The Reason You're Single?

Could Your Genes Be The Reason You're Single?

Newsy (Nov. 21, 2014) Researchers in Beijing discovered a gene called 5-HTA1, and carriers are reportedly 20 percent more likely to be single. Video provided by Newsy
Powered by NewsLook.com
Raw: Paralyzed Marine Walks With Robotic Braces

Raw: Paralyzed Marine Walks With Robotic Braces

AP (Nov. 21, 2014) Marine Corps officials say a special operations officer left paralyzed by a sniper's bullet in Afghanistan walked using robotic leg braces in a ceremony to award him a Bronze Star. (Nov. 21) Video provided by AP
Powered by NewsLook.com
Milestone Birthdays Can Bring Existential Crisis, Study Says

Milestone Birthdays Can Bring Existential Crisis, Study Says

Newsy (Nov. 21, 2014) Researchers find that as people approach new decades in their lives they make bigger life decisions. 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