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study of phenotypic characteristic and HLA types in egyptian NIDDM patients with and without glutamic acid decarboxylase antibodies under different modalities of treatment

sci.med. j., escme • 2000
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Publication Information
Authors mohamed Shawky,AhmedSalehandMahaYoussef*.
Keywords Not Available
Journal sci.med. j., escme
Publisher Not Available
Volume 12, no. 3, july., 2000
Issue Not Available
Pages Not Available
publication.type International
Paper Link Not Available
Supplementary Materials Not Available
Abstract
ABSTRACT
.» t.it work was designed to studytheprevalenceofglutamicacid
antibodies (GADab) in representatives ofEgyptianNIDDMpatients

' thephenotypiccharacteristicsandHLAtypesofthissubgroup.
,
I dnon—insulintreatedtype2 diabeticpatients(GroupI),50insulin
‘ Jabeticpatients(GroupII)and50healthyvolunteersservingascontrols
constitutedthe subjectsofourstudy.Theageofpatientsrangedbetween
a otype wasassessedbypatient'sage,ageofonsetofdiabetes,bodymass
, plasma glucose, percentage hemoglobin AIc (Hb A1c), serum
serumtriglycerides andserumC-peptidelevel. GADabwasmeasured
method.ClassIHLA(I-ILA-AandB)andclassIIHLA(HLA-DR)types
».
r
4 usingcytotoxicitytest.
’ prevalence ofGADabwas20%amonggroup1patients,60%amonggroup
_ . and4%amongcontrols. TheGADabpositiv'epatientsweresignificantly
andexperienceddiabetes onsetatanearlieragecomparedwithGADab
patients. The GADab positive patients had lowerfastingC—peptide
'on in comparisonwith GADabnegativepatients.Withrespecttofeatures
a 'c syndrome, theGADabpositivepatients hadlowerBMI,lowerserum

. 1‘ lowerserumtriglycerides, higherplasmaglucoseandhigherHbA[c
-» with GADabnegative patients.ComparedwithGADabnegativepatients
ols, groupIIpatientshadanincreasedfrequencyofHLADR3andDR4
HerewerenodtflerencesbetweenNIDDMandnormalcontrolsinthefrequency
particularHLAantigen exceptforanincreasedfrequencyofHLAB18inboth
« Iand11patientsandincreasedfrequencyofHLADR?/DR4ingroup11patients.
Uteseresultssuggestthattype2diabetesisaheterogeneousdisorderincludingat
t 2majorsubgroupscharacterizedbyGADabandHLDR3/DR4types.