Celiac disease is a chronic autoimmune disorder where gluten (in wheat, barley, rye) triggers an immune reaction in the small intestine. Prevalence in Turkey is ~1% (long under-diagnosed); 5% of pediatric short stature cases involve celiac.
History + epidemiology
- 1888: Samuel Gee — first clinical description
- 1950: Willem Karel Dicke linked gluten to wheat shortage during WWII
- 1958: Jejunal biopsy showed villous atrophy
- 1970s: Serological screening became possible
- 2010+: Silent (asymptomatic) celiac screening programs spread
Turkey prevalence:
- General population: 1.0-1.5% (Hacettepe + Ege 2018)
- Type 1 diabetes: 5-7% (autoimmune comorbidity)
- Down syndrome: 5-10%
- First-degree relative: 10%
Why does celiac cause short stature?
Mechanism
- Gluten → T-cell-mediated immune reaction in small intestine
- Villous atrophy
- Absorption surface area drops 50-80%
- Iron + calcium + folic acid + vitamin D malabsorption
- Fat + protein malabsorption
- IGF-1 drops → growth slows
- Delayed puberty, irregular menses
Clinical picture
- <4 cm/year height growth
- Percentile drop (channel crossing)
- Low BMI (typically, but normal in 30%)
- Abdominal distension, diarrhea, constipation (classical triad)
- Silent celiac: no GI symptoms, only short stature and/or iron deficiency
Diagnosis
Step 1: Serological screening
- Anti-tTG IgA (anti-tissue transglutaminase) — primary
- Total IgA level (IgA deficiency would invalidate anti-tTG)
- If IgA deficient: anti-tTG IgG or DGP IgG
Continue eating gluten before testing — eliminating before test invalidates results.
Step 2: Endoscopy + biopsy
- Upper GI endoscopy, duodenal biopsy (4-6 samples)
- Marsh classification:
- Marsh 0: normal
- Marsh 1: increased intraepithelial lymphocytes
- Marsh 2-3: crypt hyperplasia + villous atrophy (diagnostic)
ESPGHAN pediatric criteria support diagnosis without biopsy if:
- Anti-tTG IgA >10× ULN
- Anti-endomysial antibody positive
- HLA-DQ2/DQ8 positive
Step 3: Genetic test
HLA-DQ2/DQ8 negative → celiac 99% excluded. Positive → risk but not diagnostic.
Treatment: lifelong gluten-free diet
- Wheat, barley, rye — forbidden
- Oats — debated (contamination risk); pure oats often allowed
- Rice, corn, quinoa, buckwheat — safe
Hidden gluten in Turkey
- Most processed foods (sausage, salami, instant soup)
- Soy sauce (often contains gluten)
- Beer
- Some medications (excipients)
- Restaurant cross-contamination
Since 2018, Turkey's Ministry of Health provides monthly 100-200 TL pharmacy vouchers for gluten-free products.
Post-treatment growth — catch-up
After 6-12 months gluten-free:
- IGF-1 normalizes
- Iron + calcium absorption improves
- Catch-up growth: typical 8-12 cm/year height gain
- Percentile uptrend
- Bone age catches up (1-2 yrs)
Early diagnosis is critical: 4-6 yr diagnosis → adult height target met; 12+ yr diagnosis → permanent 4-8 cm loss.
Diet adherence challenges
- Separate family cooking
- School cafeteria isolation
- Social events (birthdays, camps) unavoidable exposure
- Adolescent psychology may be affected
Pediatric gastroenterology + dietitian + psychologist team standard.
Celiac + Type 1 diabetes
5-7% of type 1 diabetic children have celiac. Reason: shared HLA-DQ2/DQ8 genetic profile. Yearly anti-tTG screening is Turkey MoH recommendation.
Two diseases together → diabetes control harder, malabsorption-related hypoglycemia frequent.
FAQ
Is gluten-free diet helpful for healthy children?
No — for non-celiac children, gluten-free diet is not beneficial and may be harmful. Whole-grain wheat provides fiber + B vitamins. Trendy gluten-free eating is not recommended.
Does celiac resolve?
No — lifelong autoimmune. But gluten-free diet keeps it in clinical remission. Intestinal histology normalizes. Discontinuation re-activates.
Does celiac affect fertility?
Undiagnosed celiac: early menopause, infertility, low birth weight risks increase. Post-treatment normalizes. Anti-tTG screening before fertility treatment is standard.
Does silent celiac require treatment?
Yes — no symptoms but intestinal damage exists. Untreated leads to GI lymphoma, osteoporosis, neurological problems.
Bottom line
Celiac is the underlying diagnosis in 5% of short-statured children. Anti-tTG screening is simple, cheap, and widely available. Early diagnosis + gluten-free diet allows adult height target to be met. Track your child's growth percentile systematically — sign up free, and if you see percentile drift, consult your pediatrician with a PDF report. Anti-tTG IgA testing is a cost-effective screen for unexplained short stature.