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( Studying the correlation between the grade of villous atrophy with each of the severity of the clinical manifestations, and the titres of IgA anti- tissue transglutaminase antibodies in adults with celiac disease)

دراسة العلاقة بين درجةِ الضمورِ الزغابي و كلٍّ من شدّة التظاهرات السريرية و مستوى ارتفاع قيمة Anti- tissue transglutaminase IgA عند مرضى الداء الزُلاقي البالغين

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 Publication date 2016
and research's language is العربية
 Created by Shamra Editor




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Celiac disease is a condition in which the immune system responds abnormally to a protein called gluten , and leads to many gastrointestinal and systemic effects . There are four categories of celiac disease : (classical, atypical, silent and latent) . The diagnosis of celiac disease is established by a combination of the history , physical examination , serological tests , upper endoscopy results and multiple biopsies of the duodenum . This research is designed to study the correlation between the titres of Anti TTg IgA and between the severity of histological changes in the biopsy , and to study the correlation between the severity of clinical manifestations and between the degree of villous atrophy . The study included the adult patients who presented to Al-Assad University Hospital and Tishreen University Hospital during the period 2015- 2016 . We measured Anti tTG IgA titers . when the results were positive, patients went to upper endoscopy with duodenal biopsies . The diagnosis of celiac disease was made on the base of positive antibodies and the presence of duodenal biopsy of Marsh ≥ 2 . The results : 79 patients had positive IgA Anti tTG , and they had duodenal biopsies , the diagnosis of celiac disease was made in 71 of them . The celiac disease was found in % 89.873 of the study group . We found no correlation between the titers of Anti TTg IgA and between sex or age. The clinical manifestations varied , iron deficiency anemia was the most common (%49.3) and abdominal pain (%39.4) . Also, we found no correlation between the titers of Anti tTG IgA and between the severity of clinical manifestations or laboratory results . There was no correlation between the degree of histological damage and between the severity of clinical manifestations . We noticed that histological injury had progressed whenever the titers of Anti tTG IgA had raised . We were able to determine the titer of Anti tTG IgA in which it was diagnostic for celiac disease without the need for duodenal biopsies with sensitivity of 80.3% and specificity equivalent to 100% and this titer was : (the upper limit of the laboratory's normal serum value multiplied by 11.35). We have reached that mild enteropathy in celiac disease is a serious problem that requires strict adherence to a free gluten diet in order to prevent from the complications of the disease .


Artificial intelligence review:
Research summary
تتناول هذه الدراسة العلاقة بين مستوى ارتفاع أضداد الترانسغلوتاميناز النسيجي من نوع IgA (Anti-tTG IgA) وشدة التغيرات النسيجية في خزعات العفج، وكذلك العلاقة بين شدة التظاهرات السريرية ودرجة الضمور الزغابي لدى مرضى الداء الزلاقي البالغين. تم إجراء الدراسة على مرضى راجعوا مشفى الأسد وتشرين الجامعيين بين عامي 2015 و2016. شملت الدراسة 79 مريضًا كانت لديهم أضداد Anti-tTG IgA إيجابية، وتم تشخيص الداء الزلاقي لدى 71 منهم. أظهرت النتائج عدم وجود علاقة بين مستوى الأضداد والجنس أو العمر، كما لم توجد علاقة بين مستوى الأضداد وشدة التظاهرات السريرية أو القيم المخبرية. ومع ذلك، لوحظ ترقٍ في الأذية النسيجية بزيادة قيم الأضداد. تم تحديد قيمة تشخيصية لأضداد Anti-tTG IgA دون الحاجة لخزعات العفج بحساسية 80.3% ونوعية 100%، وهي (الرقم الأعلى للطبيعي مضروب ب 11.35). خلصت الدراسة إلى أن الاعتلال المعوي الخفيف في الداء الزلاقي يتطلب الالتزام الصارم بحمية خالية من الغلوتين لمنع المضاعفات.
Critical review
دراسة نقدية: تعتبر هذه الدراسة خطوة هامة في فهم العلاقة بين مستوى أضداد الترانسغلوتاميناز النسيجي وشدة التغيرات النسيجية في الداء الزلاقي. ومع ذلك، يمكن الإشارة إلى بعض النقاط التي قد تحتاج إلى مزيد من البحث. أولاً، لم تتناول الدراسة العوامل الوراثية أو البيئية التي قد تؤثر على نتائج المرضى. ثانيًا، العينة المستخدمة في الدراسة محدودة من حيث العدد والموقع الجغرافي، مما قد يؤثر على تعميم النتائج. ثالثًا، لم تتناول الدراسة تأثير العلاجات المختلفة على مستوى الأضداد وشدة التغيرات النسيجية. على الرغم من هذه النقاط، تظل الدراسة قيمة في تقديم معلومات هامة حول تشخيص الداء الزلاقي.
Questions related to the research
  1. ما هي القيمة التشخيصية لأضداد Anti-tTG IgA التي تم تحديدها في الدراسة لتشخيص الداء الزلاقي دون الحاجة لخزعات العفج؟

    القيمة التشخيصية هي (الرقم الأعلى للطبيعي مضروب ب 11.35) بحساسية 80.3% ونوعية 100%.

  2. ما هي أكثر التظاهرات السريرية شيوعًا لدى مرضى الداء الزلاقي في الدراسة؟

    أكثر التظاهرات السريرية شيوعًا كانت فقر الدم بعوز الحديد بنسبة 49.3%، يليه الألم البطني بنسبة 39.4%.

  3. هل وجدت الدراسة علاقة بين مستوى أضداد Anti-tTG IgA وشدة التظاهرات السريرية؟

    لا، لم تجد الدراسة علاقة ذات أهمية إحصائية بين مستوى أضداد Anti-tTG IgA وشدة التظاهرات السريرية.

  4. ما هو الاستنتاج الرئيسي للدراسة بخصوص العلاقة بين درجة الأذية النسيجية وقيم أضداد Anti-tTG IgA؟

    الاستنتاج الرئيسي هو أن الأذية النسيجية تتزايد بزيادة قيم أضداد Anti-tTG IgA، مما يمكن من تشخيص الداء الزلاقي دون الحاجة لخزعات العفج عند وجود قيم عالية للأضداد.


References used
ROSTAMI NEJAD, M., et al., Epidemiology of celiac disease in iran: a review. Middle East J Dig Dis, 3(1): p. 2011.5-12
CATASSI, C., S. GATTI, AND A. FASANO, The new epidemiology of celiac disease. J Pediatr Gastroenterol Nutr, 59 Suppl 1: 2014.p. S7-9
RUBIN CE, BRANDBORG LL, PHELPS PC, TAYLOR HC Jr. Studies of celiac disease. I. The apparent identical and specific nature of the duodenal and proximal jejunal lesion in celiac disease and idiopathic sprue. Gastroenterology 1960; 38:28
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