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Genetic Background and Clinical Characters of Pediatric Chronic Pancreatitis: Data and Implications from the East.

ABSTRACT: Background. The clinical pattern and genetic background of juvenile idiopathic chronic pancreatitis (ICP) are yet unclear. Methods. A retrospective study of 73 Chinese juvenile ICP patients was performed, and genetic tests were carried out to detect relevant mutations using direct sequencing technique and high-resolution melting technique. Subjects without pancreatitis served as controls. Results. The SPINK1 c.194+2T>C variant was present in 56.16% and 42.00% of juvenile and adult ICP patients, respectively (p = 0.020), but was not present in any of the control subjects. Thirty-four (46.58%) of the 73 juvenile ICP patients were male, and a significantly higher ratio of male patients in the adult group was identified (46.58% versus 64.00%, p = 0.022). Although most of the juvenile patients presented with abdominal pain (70/73, 95.89%), the patterns of pain attack are significantly different in patients with or without SPINK1 c.194+2T>C mutation. Patients carrying the mutation are more likely to present with recurrent acute pancreatitis (70.70%). Conclusions. The main symptom of pediatric ICP was abdominal pain. SPINK1 c.194+2T>C mutation had a higher occurrence in juvenile ICP patients than in adult group and typically presented with recurrent acute pancreatitis. There may be unidentified factors that lead to a greater incidence rate of ICP in adult male population.

SUBMITTER: Liu M

PROVIDER: S-EPMC5350339 | biostudies-literature | 2017

REPOSITORIES: biostudies-literature

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Genetic Background and Clinical Characters of Pediatric Chronic Pancreatitis: Data and Implications from the East.

Liu Muyun M Xia Tian T Zhang Di D Hu Lianghao L Liao Zhuan Z Sun Chang C Li Zhaoshen Z

Gastroenterology research and practice 20170228

Background. The clinical pattern and genetic background of juvenile idiopathic chronic pancreatitis (ICP) are yet unclear. Methods. A retrospective study of 73 Chinese juvenile ICP patients was performed, and genetic tests were carried out to detect relevant mutations using direct sequencing technique and high-resolution melting technique. Subjects without pancreatitis served as controls. Results. The SPINK1 c.194+2T>C variant was present in 56.16% and 42.00% of juvenile and ...[more]

PMID: 28348582

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Project description:IMPORTANCE:Pediatric acute recurrent pancreatitis (ARP) and chronic pancreatitis (CP) are poorly understood. OBJECTIVE:To characterize and identify risk factors associated with ARP and CP in childhood. DESIGN, SETTING, AND PARTICIPANTS:A multinational cross-sectional study of children with ARP or CP at the time of enrollment to the INSPPIRE (International Study Group of Pediatric Pancreatitis: In Search for a Cure) study at participant institutions of the INSPPIRE Consortium. From August 22, 2012, to February 8, 2015, 155 children with ARP and 146 with CP (aged ?19 years) were enrolled. Their demographic and clinical information was entered into the REDCap (Research Electronic Data Capture) database at the 15 centers. Differences were analyzed using 2-sample t test or Wilcoxon rank sum test for continuous variables and Pearson ?2 test or Fisher exact test for categorical variables. Disease burden variables (pain variables, hospital/emergency department visits, missed school days) were compared using Wilcoxon rank sum test. MAIN OUTCOMES AND MEASURES:Demographic characteristics, risk factors, abdominal pain, and disease burden. RESULTS:A total of 301 children were enrolled (mean [SD] age, 11.9 [4.5] years; 172 [57%] female); 155 had ARP and 146 had CP. The majority of children with CP (123 of 146 [84%]) reported prior recurrent episodes of acute pancreatitis. Sex distribution was similar between the groups (57% female in both). Hispanic children were less likely to have CP than ARP (17% vs 28%, respectively; odds ratio [OR]?=?0.51; 95% CI, 0.29-0.92; P?=?.02). At least 1 gene mutation in pancreatitis-related genes was found in 48% of patients with ARP vs 73% of patients with CP (P?<?.001). Children with PRSS1 or SPINK1 mutations were more likely to present with CP compared with ARP (PRSS1: OR?=?4.20; 95% CI, 2.14-8.22; P?<?.001; and SPINK1: OR?=?2.30; 95% CI, 1.03-5.13; P?=?.04). Obstructive risk factors did not differ between children with ARP or CP (33% in both the ARP and CP groups), but toxic/metabolic risk factors were more common in children with ARP (21% overall; 26% in the ARP group and 15% in the CP group; OR?=?0.55; 95% CI, 0.31-0.99; P?=?.046). Pancreatitis-related abdominal pain was a major symptom in 81% of children with ARP or CP within the last year. The disease burden was greater in the CP group compared with the ARP group (more emergency department visits, hospitalizations, and medical, endoscopic, and surgical interventions). CONCLUSIONS AND RELEVANCE:Genetic mutations are common in both ARP and CP. Ethnicity and mutations in PRSS1 or SPINK1 may influence the development of CP. The high disease burden in pediatric CP underscores the importance of identifying predisposing factors for progression of ARP to CP in children.

Dataset Information

Genetic Background and Clinical Characters of Pediatric Chronic Pancreatitis: Data and Implications from the East.

Publications

Genetic Background and Clinical Characters of Pediatric Chronic Pancreatitis: Data and Implications from the East.

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