miRNA-143 expression is associated with inflammation and time of exposure to amniotic fluid in experimental gastroschisis

Autor(es)

Ana Maria Bicudo Diniz ^[1] ; Igor José Nogueira Gualberto ^[2] ; Luiza Almeida Lima ^[3] ; Mucio Luiz de Assis Cirino ^[4] ; Rodrigo Kendi Murakami ^[5] ; Bella Luna Colombini Ishikiriama ^[6] ; Rodrigo Ruano ^[7] ; Luiz Fernando Ferraz da Silva ^[8] ; Daniela Tirapelli ^[9] ; Lourenço Sbragia ^[10]

Afiliação do(s) autor(es)

^[1] Universidade de São Paulo. Faculdade de Medicina de Ribeirão Preto. Department of Surgery and Anatomy - Brasil

^[2] Universidade de São Paulo. Faculdade de Odontologia de Bauru. Department of Pediatric Dentistry, Orthodontics and Public Health - Brasil

^[3] University of Miami. Miller School of Medicine. Department Obstetrics, Gynecology and Reproductive Sciences - Estados Unidos

^[4] Universidade de São Paulo. Faculdade de Medicina de Ribeirão Preto. Department of Surgery and Anatomy - Brasil

^[5] Universidade de São Paulo. Faculdade de Odontologia de Bauru. Department of Pediatric Dentistry, Orthodontics and Public Health - Brasil

^[6] Universidade de São Paulo. Faculdade de Odontologia de Bauru. Department of Pediatric Dentistry, Orthodontics and Public Health - Brasil

^[7] University of Miami. Miller School of Medicine. Department Obstetrics, Gynecology and Reproductive Sciences - Estados Unidos

^[8] Universidade de São Paulo. Faculdade de Medicina. Department of Pathology - Brasil

^[9] Universidade de São Paulo. Faculdade de Medicina de Ribeirão Preto. Department of Surgery and Anatomy - Brasil

^[10] Universidade de São Paulo. Faculdade de Medicina de Ribeirão Preto. Department of Surgery and Anatomy - Brasil

• Tipo de documento: Artigo Científico
• Fonte: Clinics; v. 78, 2024-01-08.

Resumo

Abstract Objective Gastroschisis (GS) is a congenital anomaly in the abdominal wall with the intestinal loops exiting laterally to the umbilicus. The contact of the loops with Amniotic Fluid (AF) causes an inflammatory process in the exposed part, leading to an extended hospital stay and an increased risk of morbidity due to alterations related to intestinal motility. The authors aimed to evaluate the time of exposure to the AF in the experimental GS and to search for potential biomarkers of intestinal inflammation by measuring microRNAs. Methods Rat fetuses were divided into three groups: a) CONTROL, b) GS reared on day 18 (GS = 18), and c) GS reared on day 19.5 (GS = 19) (term = 22 days). On day 21.5, the fetuses were removed for biometric parameters and biochemical analyses: 1) Biometrics: Body and Intestinal Weight (BW, IW), and intestinal-body weight ratio (IW/BW); 2) Descriptive histopathology and 3) miR-143 quantification by real-time Polymerase Chain Reaction (PCR). Results BW was higher in CONTROL than GS 18 and G19 (p < 0.05). IW, IW/BW, intestinal water, and mRNA-143 were higher in GS 18 and GS 19 than in CONTROL, and GS 18 was higher than GS 19 (p < 0.05). The average of the inflammation score from the intestinal wall with mucosal inflammation and intra-epithelial lymphocytes shows worst in GS 18 and GS 19 vs. CONTROL (p < 0.05). Conclusions The tissue expression of mRNA-143 and the morphological changes in the intestine of GS worsened according to the time of exposure to AF, which could be a possible marker of fetal intestinal damage. (AU)

• Processo FAPESP: 22/12021-1 - Efeito do óxido nítrico inalado na perfusão intestinal no modelo de neonatos de porcos
• Beneficiário: Lourenço Sbragia Neto
• Modalidade de apoio: Bolsas no Exterior - Pesquisa