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Basic Study
©The Author(s) 2026.
World J Gastroenterol. Feb 21, 2026; 32(7): 115143
Published online Feb 21, 2026. doi: 10.3748/wjg.v32.i7.115143
Table 1 Primers used to detect Helicobacter pylori and Candida strains
Gene
Sequence
Polymerase chain reaction product size (bp)
Procedure
Ref.
16S rDNAHeliS: AAGAACCTTACCTAGGCTTGACATTG49794 °C 3 minutes; 37 cycles at 94 °C 45 seconds, 57 °C 60 seconds, 72 °C 60 seconds; 72 °C 5 minutes[35]
HeliN: GCTAAGAGATCAGCCTATGTCC
Hpup: TGAGAGAATCCGCTAGAAATAGTGG45494 °C 3 minutes; 25 cycles at 94 °C 45 seconds, 57 °C 1 minutes, 72 °C 1 minutes; 72 °C 5 minutes
Hpdown: TAGCATCCTGACTTAAGGCAAACA
ureAPylF: CCAGATGATGTGATGGATGG60794 °C 3 minutes; 25 cycles at 94 °C 45 seconds; 50 °C 45 seconds, 72 °C 3 minutes; 72 °C 5 minutes[36]
PylR: TCAAGTCTGTATCGCCCAATC
HpU1: GCCAATGGTAAATTAGTT41194 °C 3 minutes; 34 cycles at 94 °C 45 seconds, 45 °C 45 seconds, 72 °C 45 seconds; 72 °C 5 minutes
HpU2: CTCCTTAATTGTTTTTAC
ITSITS1: TCCGTAGGTGAACCTGCGG500-80094 °C 5 minutes; 35 cycles at 94 °C 1 minutes; 60 °C 30 seconds; 72 °C 1 minutes; 72 °C 10 minutes[37]
ITS4: TCCTCCGCTTATTGATATGC


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