RESUMO
Background/Aim. Reflux symptoms (RS) are common in patients with celiac disease (CD), a chronic enteropathy that affects primarily the small intestine. We evaluated mucosal integrity and motility of the lower esophagus as mechanisms contributing to RS generation in patients with CD. Methods. We enrolled newly diagnosed CD patients with and without RS, nonceliac patients with classical reflux disease (GERD), and controls (without RS). Endoscopic biopsies from the distal esophagus were assessed for dilated intercellular space (DIS) by light microscopy and electron microscopy. Tight junction (TJ) mRNA proteins expression for zonula occludens-1 (ZO-1) and claudin-2 and claudin-3 (CLDN-2; CLDN-3) was determined using qRT-PCR. Results. DIS scores were higher in patients with active CD than in controls, but similar to GERD patients. The altered DIS was found even in CD patients without RS and normalized after one year of a gluten-free diet. CD patients with and without RS had lower expression of ZO-1 than controls. The expression of CLDN-2 and CLDN-3 was similar in CD and GERD patients. Conclusions. Our study shows that patients with active CD have altered esophageal mucosal integrity, independently of the presence of RS. The altered expression of ZO-1 may underlie loss of TJ integrity in the esophageal mucosa and may contribute to RS generation.
Assuntos
Doença Celíaca/complicações , Doença Celíaca/patologia , Esôfago/patologia , Refluxo Gastroesofágico/complicações , Mucosa/patologia , Junções Íntimas/patologia , Adolescente , Adulto , Idoso , Biópsia , Doença Celíaca/dietoterapia , Claudina-3/genética , Claudinas/genética , Monitoramento do pH Esofágico , Esôfago/fisiopatologia , Espaço Extracelular , Feminino , Proteínas de Ligação ao GTP/metabolismo , Expressão Gênica , Humanos , Masculino , Manometria , Pessoa de Meia-Idade , Mucosa/metabolismo , Proteína 2 Glutamina gama-Glutamiltransferase , RNA Mensageiro/metabolismo , Junções Íntimas/metabolismo , Transglutaminases/metabolismo , Adulto Jovem , Proteína da Zônula de Oclusão-1/genéticaRESUMO
Unilateral pulmonary edema is an uncommon clinical situation that may be difficult to distinguish from other conditions that cause lung infiltrates. Most cases occur in the right lung, and there are no reports about cardiogenic unilateral pulmonary edema as a complication of an endoscopic procedure of gastrointestinal tract. The authors describe a case of a 79-year-old woman with acute cardiac heart failure that developed soon after a diagnostic upper and lower digestive endoscopy. Continuous positive airway pressure, intravenous nitroglycerin, and furosemide treatment resulted in rapid improvement of symptoms and the progressive resolution of left-sided infiltrates on chest radiography. This case is of particular importance because of the rarity of cardiogenic unilateral edema in the left lung. This clinical finding was associated with the prolonged rest on the left side during the gastrointestinal endoscopic procedure.