Wednesday, 7 November 2007

What causes Chrons disease?

Cause of Chrons Disease
Even though there is loads of research that is ongoing, the exact cause of Chrons disease is still unknown.

There are some researchers that suspect that infection by certain bacteria, probably strains of mycobacterium, may be the cause of Chrons disease. Unfortunately up to now, there has been no hard evidence that the disease is caused by infection.

The good news is that Chrons disease is not contagious, it cannot be passed on by blood or in the air. Even though your diet may affect the symptoms of your Chrons disease it is probably not anything to do with diet that caused you to get the disease.

ChronsDisease and the Immune System
In Inflammatory Bowel Disease (IBD) the activation of the immune system in the intestines seems to have some significance. Your immune system is made up of immune cells and the proteins that these immune cells make. The function of these cells and their proteins is to protect the body against harmful viruses, bacteria, fungi and other foreign bodies. When they are activated it causes inflammation inside the tissues where this activation occurs. This is natural and this is important as part of the defense used by your immune system.

In people who have IBD, the immune system is seems to be activated even though there is no known invader and it is this continued activation which causes the chronic inflammation and ulceration. It seems that this condition and your chances of getting Chrons disease is passed on genetically from your parents. So if your parents have IBD, you are are more likely to develop Crohn's Disease.

Recent research has discovered that a gene called NOD2 has something to do with Chrons disease and it has been found that it is important in determining how the body reacts to some bacterias. The research also showed that people who have mutations of NOD2 are more likely to developing Chrons disease.

Monday, 5 November 2007

New help to distinguish between Chrons Disease and Ulcerative Colitis in Children

Anti-glycan antibodies can help distinguish between Chrons disease and ulcerative colitis in children. This news was released at the United European Gastroenterology Week (UEGW) where researchers looked at the diagnostic relevance of serological anti-glycan antibodies in 110 young people less than 18 years old who had inflammatory bowel disease (IBD) and 630 people older than 18 years.

There has always been a problem in diagnosing people who either have chrons disease or ulcerative colitis as they are very similar and have many overlapping features, but the correct diagnosis is important for the correct form of treatment. Traditionally paediatric patients often have to endure invasive examination of combined upper endoscopy, colonoscopy, and terminal ileoscopy with biopsies and atthe end of this the exact disease (crohn's disease or ulcerative colitis) in up to 30% of patients is still unknown and they are defined as "indeterminate colitis" or unclassified inflammatory bowel disease.

In adult patients, anti-glycan antibodies IBDX has been found to help distinguish between Chrons disease and ulcerative colitis, so it is highly likely that IBDX markers may also help in the diagnosis of paediatric IBD patients. The hope is that this will reduce the use of invasive examination in young children.

During the tests, the diagnosis of IBD for each person was based upon standard endoscopic, histologic, and radiographic criteria and serological analysis of antibodies against mannan epitope of Saccharomyces cerevisiae (gASCA), laminaribioside (ALCA), chitobioside (ACCA), and mannobioside (AMCA) were performed using IBDX ELISA panel.

The Results
In the results of the tests, children with IBD, who tested positive for at least one of the markers could be identified as Chrons disease patients with a sensitivity of 65% and specificity of 84%; the positive and negative predictive values were 91% and 50%, respectively. Children who tested positive for 2 or more markers could be identified as Chrons disease with higher specificity (94%) but lower sensitivity (22%).

There were also no significant differences in the results between children and adults with IBD.

The Conclusion
So in conclusion these tests show for the first time that similar to adults, anti-glycan antibodies can distinguish between chrons disease and ulcerative colitis in children with IBD.

Saturday, 3 November 2007

Children with Chrons disease often picky eaters

In a new study that was looking into food and the eating patterns in children with inflammatory bowel disease (IBD) which is a condition that includes Chrons disease and ulcerative colitis, it was found that children with IBD and crohn's disease are more likely than other children to show signs of picky eating.

All the children in the study had either Chrons disease or ulcerative colitis and "Picky" eating was defined as not eating during meal time, trying to negotiate with their parents what they will or won't eat and completely refusing to eat certain foods.

Dr. Laura Mackner the author of the study from the Columbus Children's Research Institute and Ohio State University told said the results found that children with chrons disease or ulcerative colitis have a significantly more eating behavioral problems and these also occur more often than in healthy children. She also said that children with IBD often feel pains in their abdomen, which may make them not want to eat food. "If your stomach's hurting, you may not feel like eating," she said.

Chrons Disease and a Childs Diet
Often children who have a form of IBD, weather it be Chrons disease or ulcerative colitis are often smaller than other children their own age this often makes their parents try to force them to eat more, often creating tension and a power struggle over eating. Dr. Laura Mackner said that as a parent who has a child who's eating habits start to interfere with their health you should consider taking your child to a psychologist who has experience in eating behaviors.

Nutrition education and behavior management has helped children overcome eating problems in other diseases, and similar programs might also work for children with chrons disease or ulcerative colitis.

The study looked into the eating behaviors of 82 children all between the ages of 11 and 17. 50 of the children had inflammatory bowel disease (IBD) and the rest were healthy.

They also found that girls with chrons disease or ulcerative colitis and who were unhappy with their bodies showed a higher risk of eating problems. How much they weighed was not important. But with boys who had crohn's disease or ulcerative colitis weight was important, and those who weighed less than their peers were more likely to develop eating problems than normal weight boys with IBD.

These results of this study were presented during the recent meeting of the North American Society for Pediatric Gastroenterology, Hepatology and Nutrition in Montreal.

Books on Children and Chrons Disease

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