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Context: In the last decade the Sanger method of DNA sequencing has been replaced by next-generation sequencing (NGS). NGS is valuable in conditions characterized by high genetic heterogeneity such as neonatal diabetes mellitus (NDM).
Objective: To compare results of genetic analysis of patients with NDM and congenital severe insulin resistance (c.SIR) identified in Italy in 2003-2012 (Sanger) vs 2013-2022 (NGS).
Methods: We reviewed clinical and genetic records of 104 cases with diabetes onset before 6 months of age (NDM + c.SIR) of the Italian dataset.
Results: Fifty-five patients (50 NDM + 5 c.SIR) were identified during 2003-2012 and 49 (46 NDM + 3 c.SIR) in 2013-2022. Twenty-year incidence was 1:103 340 (NDM) and 1:1 240 082 (c.SIR) live births. Frequent NDM/c.SIR genetic defects (KCNJ11, INS, ABCC8, 6q24, INSR) were detected in 41 and 34 probands during 2003-2012 and 2013-2022, respectively. We identified a pathogenic variant in rare genes in a single proband (GATA4) (1/42 or 2.4%) during 2003-2012 and in 8 infants (RFX6, PDX1, GATA6, HNF1B, FOXP3, IL2RA, LRBA, BSCL2) during 2013-2022 (8/42 or 19%, P = .034 vs 2003-2012). Notably, among rare genes 5 were recessive. Swift and accurate genetic diagnosis led to appropriate treatment: patients with autoimmune NDM (FOXP3, IL2RA, LRBA) were subjected to bone marrow transplant; patients with pancreas agenesis/hypoplasia (RFX6, PDX1) were supplemented with pancreatic enzymes, and the individual with lipodystrophy caused by BSCL2 was started on metreleptin.
Conclusion: NGS substantially improved diagnosis and precision therapy of monogenic forms of neonatal diabetes and c.SIR in Italy.
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http://dx.doi.org/10.1210/clinem/dgae095 | DOI Listing |
Arch Med Res
September 2025
Neonatology Unit, Pietro Barilla Children's Hospital, Department of Medicine and Surgery, University of Parma, Via Gramsci 14, Parma 43125, Italy. Electronic address:
Background: Gestational diabetes mellitus (GDM) affects intrauterine glucose regulation and influences heart rate variability (HRV) and cortisol levels in newborns, which are markers of autonomic and hypothalamic-pituitary-adrenal axis function. This study aimed to evaluate HRV and cortisol levels in newborns of healthy mothers and those with GDM within the first 24 h of life, and to compare these measures between sexes.
Methods: A total of 59 newborns were monitored for heart rate (HR) and HRV from the 6 h of life.
Diabetes Technol Ther
September 2025
Disciplina de Obstetricia, Departamento de Obstetricia e Ginecologia da Faculdade de Medicina FMUSP, Universidade de Sao Paulo, Sao Paulo, Brazil.
To assess the relationship between time in range (TIR), extrapolated from self-monitoring of blood glucose (SMBG) measures, and adverse perinatal outcomes in pregnant women with type 1 diabetes (T1D). A retrospective cohort study was conducted, including singleton pregnancies that began antenatal care before 20 weeks of gestation and delivered live newborns without malformations between 2010 and 2019. Glycemic data from SMBG were categorized into TIR (63-140 mg/dL or 3.
View Article and Find Full Text PDFCurr Gene Ther
August 2025
Pharmacy, Société Francophone de Nutrithérapie et de Nutrigénétique Appliquée, Villeurbanne, France.
Introduction: Hereditary forms of diabetes, including Maturity-Onset Diabetes of the Young (MODY) and Neonatal Diabetes Mellitus (NDM), are rare monogenic disorders caused by mutations in genes involved in pancreatic development, beta-cell function, and insulin secretion. Unlike the polygenic nature of type 1 and type 2 diabetes, these forms provide a unique model for precision medicine.
Methods: A comprehensive literature review was conducted to explore the molecular genetics, clinical features, diagnostic advancements, and therapeutic strategies related to MODY and NDM.
J Obstet Gynaecol Res
September 2025
Department of Obstetrics and Gynecology, Niigata University Medical and Dental Hospital, Niigata, Japan.
Aim: This study aimed to investigate maternal and perinatal outcomes in pregnancies among women aged50-54 and 55-59, to refine risk assessments and inform evidence-based counseling and perinatal management guidelines.
Methods: A nationwide registry maintained by the Japan Society of Obstetrics and Gynecology identified pregnancies between January 2013 and December 2022. Analyses included women aged 45-59 years with assisted reproductive technology pregnancies, excluding triplet or higher-order multiple gestations.
J Perinatol
September 2025
Neonatology Division, Cleveland Clinic Children's, Cleveland, OH, USA.
Objective: To assess pneumothorax prevalence in neonates across gestational age (GA) categories, identify associated variables, and examine the impact of bubble CPAP (b-CPAP) implementation.
Study Design: A cohort of 58,706 infants born at three hospitals over six years was analyzed, grouped by GA: ≥35 weeks, 29-34 weeks, and ≤28 weeks. Pneumothorax cases were matched with controls, and prevalence before and after b-CPAP adoption was compared.