Navigation Links
Study suggests weight loss from gastric bypass may be partly due to dietary fat aversion
Date:7/27/2011

and after surgery. Similarly, the rats were presented with bottles containing either water or various concentrations of a fat emulsions, with the researchers recording intake of each liquid. To determine whether taste could be responsible for preference, the researchers recorded how many licks the animals took at each bottle when it was offered for only a brief amount of time.

To determine whether digestive effects instead might be responsible for aversions, rather than taste, the researchers offered the rats water flavored with saccharine, which they typically prefer to unflavored water. They then placed a feeding tube directly into the stomachs of the animals and infused some with corn oil and others with saline solution. Other animals received an injection that causes unpleasant sensations. Previous studies have shown that animals can be conditioned to avoid foods they associate with illnessfor example, by avoiding saccharine-flavored water after becoming ill from lithium chloride. Consequently, the researchers reasoned that if corn oil caused unpleasant digestive effects, the rats fed this liquid might also avoid the saccharine-flavored water. Additionally, the researchers tested the levels of GLP-1 and PYY, hormones previously linked with food avoidance, in both the Roux-en-Y and sham-operated animals.

Results

Questionnaires from human patients revealed that those who had gastric bypass were significantly more likely to report a reduction in dietary fat intake compared to those who had gastroplasty instead.

The researchers found that rats who underwent Roux-en-Y surgery consumed significantly lower proportions of high-fat chow and higher proportions of low-fat chow compared to the sham-operated animals. Additionally, those animals who underwent the bypass surgery showed a lower preference for high concentrations of the fat emulsions compared to those who received the sham operation. The Roux-en-Y animals had about th
'/>"/>

Contact: Donna Krupa
dkrupa@the-aps.org
301-634-7209
American Physiological Society
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Study: Climate change to increase Yellowstone wildfires dramatically
2. UCI-led butterfly study sheds light on convergent evolution
3. As new data wave begins, a gene study in one disease discovers mutations in an unrelated disease
4. First global study of real-world circumcision rollout conducted over 3-year period in South Africa amongst 110,000 adults shows a marked reduction (>60 percent) of HIV acquisition among circumcised adult men
5. Western researchers receive $600,000 to study Prion diseases and Alzheimers
6. Study finds some desert birds less affected by wildfires and climate change
7. Study shows small-scale fisheries impact on marine life
8. UCLA study shows bacteria use Batman-like grappling hooks to slingshot on surfaces
9. Cancer stem cells recruit normal stem cells to fuel ovarian cancer, U-M study finds
10. Green light for EU co-funding of TUM Institute for Advanced Study fellowships
11. Cod mislabeling 4 times more prevalent in Ireland than UK, study shows
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/18/2014)... Wis. No matter how many times it,s ... social, communicating creatures. , But by using ... organisms radically alter their behavior to suit their ... of them are present, and act accordingly. , ... millions, it may change from innocuous to pathogenic, ...
(Date:9/18/2014)... turned its newborn screening program into a model other states ... the first-ever Newborn Screening Quality Award from the March of ... M.P.H., Arizona,s Department of Health Services director, with the award ... policy of full transparency for the length of time it ... lab for analysis, and set a target of having 95 ...
(Date:9/18/2014)... global cycles of carbon and nitrogen comprise all ... and environmental systems have caused imbalances and perturbations ... gases (GHGs). Increased GHGs result in climate changes ... ecosystems, oceans and the atmosphere. Understanding these feedback ... branch of environmental science during the past three ...
Breaking Biology News(10 mins):Researchers study vital 'on/off switches' that control when bacteria turn deadly 2Researchers study vital 'on/off switches' that control when bacteria turn deadly 3March of Dimes honors Arizona with first-ever newborn screening award 2March of Dimes honors Arizona with first-ever newborn screening award 3Greenhouse gas research enters a new era 2
... from the University of Southern Denmark have identified how a ... in a cell,s membrane. Such holes cause high blood pressure, ... medication for high blood pressure. High blood pressure can ... a specific mutated protein. Now the researchers at University of ...
... suffer from the consequences of maternal drug exposure during pregnancy, ... used substances. This motivated the study, published in the ... to decipher the molecular basis of how the major psychoactive ... brain development of the unborn foetus. The study ...
... have engineered an efficient and environmentally friendly catalyst for ... extensively in modern industry to manufacture fertilizer and refine ... element, it is generally not found as the pure ... (H2O) or to carbon in methane (CH4), the primary ...
Cached Biology News:Punctured cell membranes lead to high blood pressure 2Cannabis during pregnancy endangers fetal brain development 2Engineers teach old chemical new tricks to make cleaner fuels, fertilizers 2Engineers teach old chemical new tricks to make cleaner fuels, fertilizers 3Engineers teach old chemical new tricks to make cleaner fuels, fertilizers 4
(Date:9/18/2014)... About POCT POCT, ... clinical laboratory. It helps in making fast clinical ... medication. POCT is gaining popularity due to the ... as diabetes, heart disease, and obesity. It is ... to minimize errors during the diagnosis of patients. ...
(Date:9/18/2014)... Ireland , September 18, 2014 ... and Markets ( http://www.researchandmarkets.com/research/czvg3s/biocompatible ) has ... "Biocompatible Materials - Global Strategic Business ... ,     (Logo: http://photos.prnewswire.com/prnh/20130307/600769) ,This report analyzes ... in US$ Million by the following ...
(Date:9/18/2014)... 18, 2014 Research and Markets ... "Global N-acetylcysteine Industry Report 2014" report to ... Industry Report 2014 is a professional and in-depth ... N-acetylcysteine industry. The report provides a ... applications and industry chain structure. The N-acetylcysteine market ...
(Date:9/18/2014)...  U.S. biotech company Kultevat has strengthened ... technology developed by the Donald Danforth Plant Science ... for applications in production of natural rubber in ... developed under the direction of Roger Beachy , ... of the Danforth Plant Science Center, and is used ...
Breaking Biology Technology:POCT Market in China 2014-2018 2Biocompatible Materials - Global Strategic Business Report 2014 2Biocompatible Materials - Global Strategic Business Report 2014 3Global N-acetylcysteine Industry Report 2014 2Kultevat obtains license of gene switch technology 2
... a provider of single-molecule DNA analysis technology, announced Thursday it ... of brain tumor, known as oligodendroglioma. OpGen, based in Madison, ... and professor of genetics and chemistry at the University of ... , ,Optical mapping, invented by Schwartz, will enable researchers to ...
... investors, and media is a leading indicator, the technology market is ... when he said DEMO 2004 felt "like a bit of the ... were repeated by dozens of attendees who talked to or emailed ... this industry unlike any we've felt in the past 36 months. ...
... to offshore outsourcing as an issue du jour. I ... (an election year at that for America) due to ... future of the U.S. Prominent voices along every point ... Democratic presidential nomination to the Bush Administration and a ...
Cached Biology Technology:OpGen joins UW, Henry Ford Heath in Improving Brain Tumor Treatment 2The Tech Market is Looking Up 2The Tech Market is Looking Up 3The Tech Market is Looking Up 4The Great Offshore Outsourcing Debate 2
... AP Conjugate Stabilizer is an aqueous ... protein and other non-toxic stabilizing chemicals ... pH 5.5 6.5. This ... methylisothiazolone and 0.02% bromonitrodioxane as a ...
... binding is a problem in your ... immobilized NeutrAvidin products as superior alternatives ... a modified avidin derivative that combines ... biotin-binding protein with exceptionally low nonspecific ...
Cells are grown to a specified density and induced, when necessary. Protein expression samples are collected at 3 growth points and analyzed by SDS-PAGE/Coomassie....
... generated hybridomas against a large variety ... you are provided with personalized project ... lines developed by Covance remain exclusive ... hybridoma development project has four phases: ...
Biology Products: