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Article in Chinese | WPRIM | ID: wpr-745678


Objective To summarize the clinical feature,gene mutations,diagnosis,treatment,and follow-up data of protein-sensitive hypoglycemia,so as to improve the clinical understanding of the disease.Methods Five patients were diagnosed with protein-sensitive hypoglycemia during June in 2015 and December in 2017 from the Department of Pediatric Endocrinology and Inherited Metabolic Diseases,Children's Hospital of Fudan University.Clinical data of 5 cases were summarized,including clinical manifestations,findings of protein sensitivity test,therapy effect and prognosis.The endocrine and metabolic panel was used to investigate the genetic cause of four patients.Related literatures of protein-sensitive hypoglycemia were reviewed,and the phenotypes,genotypes,and therapy effects were summarized.Results Among the 5 patients diagnosed with positive results of protein-sensitive hypoglycemia,three were found to harbor glutamate dehydrogenase 1 (GLUD 1) mutations (c.965G > A,p.R322H:2 cases;c.943C >T,p.H315Y:1 case),and another one had complex heterozygous mutations in L-3-hydroxyacyl-CoA dehydrogenase (HADH,c.29G > C,p.R10P;c.89T> A,p.V30E).5 patients were euglycemia without any medical support after low protein diet.In 18 literatures retrieved and this study,there were totally 161 cases of protein-sensitive hypoglycemia (149 cases with GLUD1 mutations and 10 cases with HADH mutations).Conclusions When a child was admitted because of hypoglycemia,the diagnosis of protein-sensitive hypoglycemia should be suspected if he or she also had postprandial hypoglycemia,with or without hyperammonemia.Protein sensitivity test is helpful for us to make the diagnosis of protein-sensitive hypoglycemia.

Chinese Journal of Pediatrics ; (12): 785-789, 2017.
Article in Chinese | WPRIM | ID: wpr-809340


Objective@#To study the feasibility of 18F-fluoro-L-dihydroxyphenylalanine positron emission tomography/Computed tomography (18F-DOPA PET/CT) scanning in the localization and differential diagnosing of focal versus diffuse form of pancreas lesions in patients with hyperinsulinemic hypoglycemia (HH).@*Method@#Twenty-four patients were diagnosed with HH between January, 2016 and February, 2017 in the Department of Pediatric Endocrinology and Inherited Metabolic Diseases, Children′s Hospital of Fudan University using an integrated clinical and biochemical diagnostic protocol, domestic 18F-DOPA PET/CT imaging technique were applied after MRI and ultrasound failed to detect pancreas lesions. Pancreas 18F-DOPA standardized uptake values (SUV) were measured, and pancreas′ lesions were dually analyzed via visual method and pancreas percentage SUV method. Among these patients, 9 patients received surgical pancreatic lesion resections, the correlations among surgical outcomes, histopathological findings and 18F-DOPA PET/CT scan results were analyzed.@*Result@#Seven patients were detected with focal form of pancreas lesions, the mean peak of SUV was 4.7±1.7(2.6-7.1), and 17 patients were found to have diffuse form lesions after 18F-DOPA-PET/CT scanning. Among the 24 cases, 9 patients (7 showed focal and 2 showed diffuse 18F-DOPA PET/CT pancreatic uptake)were euglycemic without any medical support after surgery; the resected pancreatic tissue histopathological results were consistent with that of PET/CT imaging. Only one patient, who responded to medical treatment before surgery, had temporary hyperglycemia after operation.@*Conclusion@#Domestic 18F-DOPA PET/CT could successfully locate and differentiate the pancreatic lesions and thus improve the success of surgery.

Article in Chinese | WPRIM | ID: wpr-416934


Fourteen neonatal diabetes mellitus(NDM)patients were recruited. 9 patients were treated with glyburide and the other 5 with insulin. ABCC8, KCNJ11, and INS genes were sequenced in 6 of them. Gene mutations were found in 2, 1, and 1 cases in these genes, respectively. One case with 6q24 hypomethylation and another without known mutation were also found. 8 out of 9 patients treated with glyburide reached euglycemia(88.9%). The other 5 patients with insulin therapy either died or lost contact. The results suggest that glyburide therapy is effective in neonatal diabetes mellitus, while insulin therapy may contribute to poor compliance.