PMID- 24840376 OWN - NLM STAT- PubMed-not-MEDLINE DCOM- 20140520 LR - 20220409 IS - 2093-0879 (Print) IS - 2093-0887 (Electronic) IS - 2093-0879 (Linking) VI - 20 IP - 2 DP - 2014 Apr 30 TI - Prevalence of Anti-deamidated Gliadin Peptide Antibodies in Asian Patients With Irritable Bowel Syndrome. PG - 236-41 LID - 10.5056/jnm.2014.20.2.236 [doi] AB - BACKGROUND/AIMS: Non-celiac gluten sensitivity has been increasingly recognized as a predisposing factor for irritable bowel syndrome (IBS)-like symptoms in Western populations where celiac disease (CD) is relatively common. In Asia where CD is rare, we wish to de-termine the prevalence of gluten protein associated serology in IBS patients, which has not been formally studied, and its rela-tion to histological and human leukocyte antigen (HLA) markers. METHODS: We reviewed a consecutive cohort of Asian patients with IBS, who had undergone serologic testing for IgA against deamidated gliadin peptide antibodies (IgA DGP) and IgA anti-endomysium antibodies, and who also had duodenal biopsies during clinical workup. In addition, a subset of Chinese patients with positive serology was further tested for HLA-DQ2 and HLA-DQ8. RESULTS: Of 186 patients, 34 (18%) were positive for IgA DGP; bloating, abdominal pain, belching and diarrhea were the most com-monly reported symptoms but diarrhea as the most bothersome symptom was significantly more common in IgA DGP positive patients. Mildly increased intra-epithelial lymphocytes on duodenal biopsy was also more common (29% vs. 9%, P = 0.001). Nine of 21 Chinese patients tested as IgA DGP positive undertook HLA-DQ2/DQ8 testing, with only 2 being positive for HLA-DQ8. All patients with positive IgA DGP reported symptom improvement with gluten withdrawal. CONCLUSIONS: We have described a series of Asian, mainly Chinese, patients with IBS who were tested positive for IgA DGP, and improved on a gluten exclusion diet. We believe this is the first report of non-celiac gluten sensitivity in Asia, a region where CD is uncommon. FAU - Lu, Wei AU - Lu W AD - Department of Gastroenterolgy and Hepatology, National University Health System, Singapore. FAU - Gwee, Kok-Ann AU - Gwee KA AD - Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore. FAU - Siah, Kewin Tien Ho AU - Siah KT AD - Department of Gastroenterolgy and Hepatology, National University Health System, Singapore. FAU - Kang, Jin Yong AU - Kang JY AD - Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore. FAU - Lee, Rumin AU - Lee R AD - Stomach, Liver and Bowel Center, Gleneagles Hospital, Singapore. FAU - Ngan, Cecilia Cheng Lai AU - Ngan CC AD - Department of Pathology, Singapore General Hospital, Singapore. LA - eng PT - Journal Article PL - Korea (South) TA - J Neurogastroenterol Motil JT - Journal of neurogastroenterology and motility JID - 101530189 PMC - PMC4015193 OTO - NOTNLM OT - Asian OT - Celiac disease OT - Gliadin OT - Gluten sensitive enteropathy OT - Irritable bowel syndrome EDAT- 2014/05/21 06:00 MHDA- 2014/05/21 06:01 PMCR- 2014/04/01 CRDT- 2014/05/21 06:00 PHST- 2013/11/15 00:00 [received] PHST- 2013/12/27 00:00 [revised] PHST- 2014/01/08 00:00 [accepted] PHST- 2014/05/21 06:00 [entrez] PHST- 2014/05/21 06:00 [pubmed] PHST- 2014/05/21 06:01 [medline] PHST- 2014/04/01 00:00 [pmc-release] AID - jnm.2014.20.2.236 [pii] AID - jnm-20-236 [pii] AID - 10.5056/jnm.2014.20.2.236 [doi] PST - ppublish SO - J Neurogastroenterol Motil. 2014 Apr 30;20(2):236-41. doi: 10.5056/jnm.2014.20.2.236.