Celiac Disease

What is Celiac Disease?

Celiac (Pronounced - SEL-ee-ak) disease is a digestive disease that damages the small intestine and interferes with absorption of nutrients from food. People who have celiac disease cannot tolerate a protein called gluten, found in wheat, rye, and barley. Gluten is found mainly in foods but may also be found in products we use every day, such as stamp and envelope adhesive, medicines, and vitamins.

The small intestine is shaded above.

When people with celiac disease eat foods or use products containing gluten, their immune system responds by damaging the small intestine. The tiny, fingerlike protrusions lining the small intestine are damaged or destroyed. Called villi, they normally allow nutrients from food to be absorbed into the bloodstream. Without healthy villi, a person becomes malnourished, regardless of the quantity of food eaten.

Villi on the lining of the small intestine help absorb nutrients.

Because the body's own immune system causes the damage, celiac disease is considered an autoimmune disorder. However, it is also classified as a disease of malabsorption because nutrients are not absorbed. Celiac disease is also known as celiac sprue, nontropical sprue, and gluten-sensitive enteropathy.

Celiac disease is a genetic disease, meaning it runs in families. Sometimes the disease is triggered - or becomes active for the first time - after surgery, pregnancy, childbirth, viral infection, or severe emotional stress.

Symptoms of Celiac Disease

Celiac disease affects people differently. Symptoms may occur in the digestive system, or in other parts of the body. For example, one person might have diarrhea and abdominal pain, while another person may be irritable or depressed. In fact, irritability is one of the most common symptoms in children. Symptoms of celiac disease may include one or more of the following:

• Gas
• Recurring abdominal bloating and pain
• Chronic (lasting a long time) diarrhea
• Constipation
• Pale, foul smelling, or fatty stool
• Weight loss or weight gain
• Fatigue
• Unexplained anemia (a low count of red blood cells causing fatigue)
• Bone or joint pain
• Osteoporosis, osteopenia
• Behavioral changes
• Tingling numbness in the legs (from nerve damage)
• Muscle cramps
• Seizures
• Missed menstrual periods (often because of excessive weight loss)
• Infertility, recurrent miscarriage
• Delayed growth
• Failure to thrive in infants
• Pale sores inside the mouth, called aphthous ulcers
• Tooth discoloration or loss of enamel
• Itchy skin rash called dermatitis herpetiformis

A person with celiac disease may have no symptoms. People without symptoms are still at risk for the complications of celiac disease, including malnutrition. The longer a person goes undiagnosed and untreated, the greater the chance of developing malnutrition and other complications. Anemia, delayed growth, and weight loss are signs of malnutrition: The body is just not getting enough nutrients. Malnutrition is a serious problem for children because they need adequate nutrition to develop properly.

Researchers are studying the reasons celiac disease affects people differently. Some people develop symptoms as children, others as adults. Some people with celiac disease may not have symptoms, while others may not know their symptoms are from celiac disease. The undamaged part of their small intestine may not be able to absorb enough nutrients to prevent symptoms.

The length of time a person is breastfed, the age a person started eating gluten-containing foods, and the amount of gluten-containing foods one eats are three factors thought to play a role in when and how celiac disease appears. Some studies have shown, for example, that the longer a person was breastfed, the later the symptoms of celiac disease appear and the more uncommon the symptoms.

What is Celiac Disease and What are the Symptoms?
How is Celiac Disease Diagnosed?
What is the Treatment For Celiac Disease?
What are the Complications and How Common is Celiac Disease?
Diseases Linked to Celiac Disease
Dermatitis Herpetiformis
Hope Through Research
For More Information About Celiac Disease

References:
National Digestive Diseases Information Clearinghouse (NDDIC) - NIH Publication No. 07-4269 - August 2007 - digestive.niddk.nih.gov/ddiseases/pubs/celiac/

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