a comparison of microsatellite instability in early onset gastric carcinomas from relatively low and high incidence european populations. | we have investigated the genetic basis of gastric carcinomas occurring in patients aged under 40 years from a portuguese population with a relatively high incidence of gastric cancer. we analysed a panel of 12 microsatellite loci in dna extracted from gastric carcinomas arising in 16 patients aged 24-39 years from braga, portugal. overall, microsatellite instability (mi) in at least 1 locus was detected in 44% (7 of 16) of carcinomas. a single patient demonstrated a mutator phenotype suggestive ... | 2000 | 10629076 |