Brief Reports
Copyright ©The Author(s) 2004.
World J Gastroenterol. Feb 15, 2004; 10(4): 602-605
Published online Feb 15, 2004. doi: 10.3748/wjg.v10.i4.602
Table 1 Oligonucleotide primers used for cagA, vacA and iceA genotyping
Region detectedPrimer designationPrimer sequenceSize of PCR product (bp)References
s1 and s2VA1-F5’ATGGAAATACAACAAACACACC3’25921
VA1-R5’CTGCTTGAATGCGCCAAACTTTATC3’286
s1aSS1-F5’GTCAGCATCACACCGCAAC3’1909
s1bSS3-F5’AGCGCCATACCGCAAGAG3’1879
s1cS1C-F5’CTYGCTTTAGTRGGGYTA3’21317
m1VA3-F5’GGTCAAAATGCGGTCATGG3’2909
VA3-R5’CCATTGGTACCTGTAGAAAC3’
m1Tm1T-F5’GGTCAAAATGCGGTCATGG3’29021
m1T-R5’CTCTTAGTGCCTAAAGAAACA3’
m2VA4-F5’GGAGCCCCAGGAAACATTG3’3529
VA4-R5’CATAACTAGCGCCTTGCAC3’
iceA1iceA1F5’GTGTTTTTAACCAAAGTATC3’24716
iceA1R5’CTATAGCCASTYTCTTTGCA3’
iceA2iceA2F5’GTTGGGTATATCACAATTTAT3’22916
iceA2R5’TTRCCCTATTTTCTAGTAGGT3’
lcagAlcagAD0085’ATAATGCTAAATTAGACAACTTGAGCGA3’2975
lcagAR0085 ’TTAGAATAATCAACAAACATCACGCCAT3’
Table 2 Genotypes of Helicobacter pylori in patients with chronic gastritis, non-bleeding duodenal ulcers (DU), bleeding DU, non-bleeding gastric ulcers (GU) and bleeding GU n%
DiagnosisNo. of patientsNo. of positive PCRs1as1bs1cs2m1m1Tm2cagAiceA1iceA2
Chronic gastritis372521(57)0(0)14(38)0(0)0(0)8(22)12(32)22(59)22(59)2(5)
Non-bleeding DU534030(57)4(8)22(42)0(0)0(0)11(21)15(28)29(55)30(57)3(6)
Bleeding DU482617(35)4(8)15(31)2(4)2(4)3(6)12(25)25(52)19(40)7(15)
Non-bleeding GU825139(48)0(0)29(35)0(0)0(0)10(12)30(37)41(50)34(41)13(16)
Bleeding GU582620(34)1(2)13(22)0(0)0(0)1(2)15(26)22(38)20(34)4(7)
Table 3 Genotypes of Helicobacter pylori in patients with non-bleeding peptic ulcers and bleeding peptic ulcers n%
DiagnosisNo. of patientsNo. of positive PCRs1as1bs1cs2m1m1Tm2cagAiceA1iceA2
Non-bleeding PU1359169a(51)4(3)51(38)0(0)0(0)21b(16)45(33)70(52)64(47)16(12)
Bleeding PU1065237(35)5(5)28(26)2(2)2(2)4(4)27(25)47(44)39(37)11 (10)