Featured Research

from universities, journals, and other organizations

Beneficial Bacteria Boost Intestinal Health

Date:
January 3, 2007
Source:
USDA/Agricultural Research Service
Summary:
A probiotic supplement was found to stimulate the immune system and improve nutrient absorption in two separate animal studies recently conducted by Agricultural Research Service (ARS) scientists. Probiotics are living microorganisms that, when added to foods or dietary supplements in sufficient numbers, can benefit the consumer in one or more ways.

In tests to evaluate the effect of beneficial bacteria on the immune system, microbiologist Gloria Solano-Aguilar administers a probiotic treatment to a young pig.
Credit: Photo by Peggy Greb

A probiotic supplement was found to stimulate the immune system and improve nutrient absorption in two separate animal studies recently conducted by Agricultural Research Service (ARS) scientists. Probiotics are living microorganisms that, when added to foods or dietary supplements in sufficient numbers, can benefit the consumer in one or more ways.

The studies were led by microbiologist Gloria Solano-Aguilar with the ARS Nutrient Requirements and Functions Laboratory, one of seven research units at the Beltsville (Md.) Human Nutrition Research Center. Solano-Aguilar received funding from Nestlι Nutrition of Glendale, Calif.

Healthy animals and humans benefit every day from trillions of natural intestinal bacteria. These friendly bacteria help keep "bad" bacteria from gaining a foothold that could lead to illness or disease. In the first study, the common probiotic strain Bb 12 was fed to three pregnant sows, while a placebo treatment was fed to three pregnant control sows. The scientists then fed the same Bb 12 treatment to half of each sow's litters, resulting in four experimental groups.

Solano-Aguilar studied gene expression patterns in tissue taken from each animal's lymph nodes, liver, spleen and intestine. She also studied the animals' intestinal contents. The team then compared the gene expression patterns in the pigs from all four groups. The probiotic was found to induce innate immune activity in the colon where the probiotic was in highest concentration.

In a separate study, half of a group of test pigs were treated with the Bb 12 probiotic before all of the test pigs were exposed to a worm infection. The researchers then compared the response to infection of the group of pigs that received the probiotic treatment with the response of those that did not receive the treatment. Preliminary results show better response to the infection--and improved nutrient absorption--in the group of pigs that were supplemented with the probiotic treatment prior to the infection.

ARS is the U.S. Department of Agriculture's chief scientific research agency.


Story Source:

The above story is based on materials provided by USDA/Agricultural Research Service. Note: Materials may be edited for content and length.


Cite This Page:

USDA/Agricultural Research Service. "Beneficial Bacteria Boost Intestinal Health." ScienceDaily. ScienceDaily, 3 January 2007. <www.sciencedaily.com/releases/2007/01/070102135423.htm>.
USDA/Agricultural Research Service. (2007, January 3). Beneficial Bacteria Boost Intestinal Health. ScienceDaily. Retrieved August 22, 2014 from www.sciencedaily.com/releases/2007/01/070102135423.htm
USDA/Agricultural Research Service. "Beneficial Bacteria Boost Intestinal Health." ScienceDaily. www.sciencedaily.com/releases/2007/01/070102135423.htm (accessed August 22, 2014).

Share This




More Plants & Animals News

Friday, August 22, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Endangered Red Wolves Face Uncertain Future

Endangered Red Wolves Face Uncertain Future

AP (Aug. 22, 2014) — A federal judge temporarily banned coyote hunting to save endangered red wolves, but local hunters say that the wolf preservation program does more harm than good. Meanwhile federal officials are reviewing its wolf program in North Carolina. (Aug. 22) Video provided by AP
Powered by NewsLook.com
Farm Resurgence Grows With Younger Crowd

Farm Resurgence Grows With Younger Crowd

AP (Aug. 22, 2014) — New England farms are seeing a surge in younger farm hands as the 'buy local' food movement grows across the country. (Aug. 22) Video provided by AP
Powered by NewsLook.com
Drug Used To Treat 'Ebola's Cousin' Shows Promise

Drug Used To Treat 'Ebola's Cousin' Shows Promise

Newsy (Aug. 21, 2014) — An experimental drug used to treat Marburg virus in rhesus monkeys could give new insight into a similar treatment for Ebola. Video provided by Newsy
Powered by NewsLook.com
Terrifying City-Dwelling Spiders Are Bigger And More Fertile

Terrifying City-Dwelling Spiders Are Bigger And More Fertile

Newsy (Aug. 21, 2014) — According to a new study, spiders that live in cities are bigger, fatter and multiply faster. 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:
from the past week

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