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  1. Hussain S, Mohd Ali J, Jalaludin MY, Harun F
    Pediatr Diabetes, 2013 Jun;14(4):299-303.
    PMID: 23350652 DOI: 10.1111/pedi.12011
    We report a rare case of permanent neonatal diabetes (PND) due to insulin (INS) gene mutation in a 51-month-old girl who presented with hyperglycemia in the neonatal period. Mutational analysis of KCNJ11 and INS was performed and this detected a novel heterozygous c.38T>G (p.Leu13Arg) INS de novo mutation. The non-conservative change substitutes the highly conserved L(13) residue within the hydrophobic core region of the preproinsulin signal peptide. Given the frequent tendency of heterozygous INS mutations to exhibit dominant negative disease pathogenesis, it is likely that the mutant preproinsulin perturbed the non-mutant counterpart progression and processing within the β-cells, and this resulted to a permanent form of congenital diabetes.
    Matched MeSH terms: Insulin, Isophane/administration & dosage
  2. Nor Azlin MI, Adam R, Sufian SS, Wahab NA, Mustafa N, Kamaruddin NA, et al.
    J Obstet Gynaecol Res, 2011 Feb;37(2):132-7.
    PMID: 21159037 DOI: 10.1111/j.1447-0756.2010.01330.x
    AIM: To evaluate the safety and tolerability of once or twice daily neutral protamine hagedorn (NPH) insulin in fasting pregnant diabetics during Ramadan.
    METHODS: This was a prospective cohort study conducted during Ramadan 2006 and 2007. Twenty four pregnant diabetic women were given NPH insulin once at 5 pm or twice daily at 5 pm and 5 am. Demographic data, blood glucose control, insulin requirement, days of fasting and hypoglycemic episodes were analyzed.
    RESULTS: Most women were parity 1 (37.5%) in their second trimester (54.2%) and worked during the daytime (87.5%). Fourteen women (58.3%) had gestational diabetes mellitus, nine women (37.5%) had type 2 and one (4.2%) had type 1 diabetes mellitus. There were significant reductions in mean fasting blood glucose (6.16 mmol/L versus 5.34 mmol/L, P = 0.001), glycosylated hemoglobin (HbA1c) (6.70% ± 0.91 versus 6.64% ± 0.96, P = 0.001) and serum fructosamine (232.4 mmol/L ± 24.0 versus 217.0 mmol/L ± 24.3, P = 0.001) after Ramadan compared to before Ramadan. Throughout the four weeks of Ramadan, home blood glucose monitoring showed a reducing trend and was within the acceptable limits. Insulin requirement was increased from the first to the fourth week with a reduction in insulin dose noted after (38.5 U/day) compared to before the start of Ramadan (40 U/day). Most women (79.2%) were able to fast for more than 15 days without any hypoglycemia or fetal demise.
    CONCLUSION: Once or twice daily NPH insulin is a safe and tolerable option for pregnant diabetics who wish to fast during Ramadan.
    Matched MeSH terms: Insulin, Isophane/administration & dosage
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