presentation by margaret roberts. first described in 1880 link to diet was not described until...
TRANSCRIPT
First described in 1880
Link to diet was not described
until 1950
In 1954, Dr. Paulley showed that
intestinal mucosa was damaged
History of celiac disease
Walker and Murray 2010
Autoimmune Disease
Response to barley, wheat, and rye
It can affect the gut, skin, joints, uterus,
brain, heart, and other organs
1 in 100 have celiac disease
Celiac Disease
Walker and Murray 2010
Requires a joint clinicopathological approach
First-line test is serology with
immunoglobulin A (IgA) tissue
transglutaminase and IgA endomysial
antibodies. Second, biopsy is the best to confirm the
diagnosis of celiac disease
Diagnosis
Walker and Murray 2010
While the sensitivity of IgA to detect celiac
disease is 91%, this test has a positive
predictive value of only 29%◦ In one study up to one in 13 cases of celiac disease
were undetected by serology IgA deficiency is the most common primary
immune deficiency, affecting one in 400 to one in 600 of the general population, and a high proportion of those tested for celiac disease
Serology
Walker and Murray 2010
Biopsy should occur in the duodenum, preferably the
second portion of it.
Duodenal bulb is a secondary location
Suggested that biopsies should occur four to five times
before true diagnosis can be made
Biopsy
Classical scalloping of duodenal mucosa seen in established celiac disease at endoscopy.
Walker and Murray 2010
Normal versus Celiac small bowel biopsy.
Top: Normal small bowel biopsy with finger-like villi.
Bottom: Celiac small bowel biopsy with villous atrophy and hypertrophy of crypt.
Martin 2008
Nausea, Diarrhea, vomiting
Irritability, fatigue
Itchy rash over arms, elbow, scalp, face and
knees
Lactose intolerance, infertility, depression,
and elevated liver enzymes
Symptoms of CD
Martin 2008
Have a three-fold higher risk of non-Hodgkin
Lymphoma as well as cancer of the gastrointestinal
tract. Lower risk of postmenopausal breast cancer
because of lower obesity rates.
Iron deficiency anemia is also prevalent due to
malabsorption
Worse cases have megablastic anemia because of
B12 deficiency
Side effects of CD
Martin 2008
Introduction to complementary foods too
soon
Introduction to complementary foods too
late
Use of formula instead of breast milk
Genes
OR … A combination of the four?
Possible Causes:
Early in life, the body is building up immune
functions as well as proper responses to food
Without the proper enzymes to digest a food, the
body treats it like an antigen/allergen
Allergen exposure too early when the gut
colonization and local immune networks are less
established may increase the risk of allergic or
autoimmune disease
Introduction of Complementary foods too soon
Prescott, Smith, Tang, Palmer, Sinn, Huntley, Cormac et. al 2008
Evidence that waiting until after six months to introduce complementary foods increases food allergies
Instead, there is a critical period during which complementary foods must be introduced
Animal studies suggest this age to be 4-6 months
Introduction of complementary foods too late
School of Pediatrics and Child Health Research 2008
Studies show that breast feeding at least
delays the onset of celiac disease
Continued breastfeeding promotes
tolerance and have protective effects during
the time when complementary feeding is
initiated.
Use of breast milk vs. formula
Breast milk may limit amount of gluten absorbed
Prevention of gastrointestinal infections by breast milk
Human milk IgA antibodies may diminish immune response to ingested gluten
The immune modulating property of human milk may be exerted through its T-cell specific suppressive effect.
Celiac disease and breast milk
Selimoglu, Mukadder Ayse MD; Karabiber, Hamza MD 2010
VERY strong correlation
Virtually all patients carry human leukocyte
antigen (HLA)-DQ2 or HLA-DQ8
The absence of these molecules has a
negative predictive value for celiac disease
close to 100%.
Genes
Walker and Murray 2010
The best treatment is a gluten-free diet.
This has a near 100% chance of relieving
most, if not all symptoms
Unfortunately, sticking to the diet is very
hard
Also, gluten-free diet is correlated with
anger, sadness, and despair
Treatment
Selimoglu, Mukadder Ayse MD; Karabiber, Hamza MD 2010
Enzyme supplement treatment◦ Lack of endoprolyl peptidase (PEP)◦ Administration of enzymes with meals can
complement gastric and pancreatic enzymes in detoxification of ingested gluten
Designer carbohydrates◦ The aim is the production of wheat that is devoid
of biologically active peptide sequences Correction of impaired Intestinal
permeability
Newest treatments
Selimoglu, Mukadder Ayse MD; Karabiber, Hamza MD 2010
Martin, S. (May 2008). Against the grain: an overview of celiac disease. Journal of the American Academy of Nurse Practitioners. 20(5),243-50
Selimoglu, Mukadder Ayse MD; Karabiber, Hamza MD (January 2010). Celiac disease: prevention and treatment. Journal of Clinical Gastroenterology. 44(1), 4-8.
School of Pediatrics and Child Health Research. (2008 August). The importance of early complementary feeding in the development of oral tolerance: concerns and controversies. Pediatric Allergy and Immunology. 19(5), 375-80
Walker, M. Murray, J. (3 November 2010). An update in the diagnosis of coeliac disease. Histopathology. Obtained from PubMed.gov.
Works Cited