title: [Pattern recognition on the trace element spectrum in gastric cancer and peptic ulcer].
abstract: The trace element spectrum of gastric tissue and whole blood specimens from gastric cancer and peptic ulcer patients was recognized with pattern recognition technique in order to obtain the chemical information of gastric cancer. Thirty specimens were obtained from cancer patients in each of the 58 gastric tissues and 54 whole blood specimens. Five pathological types were divided into two groups: peptic ulcer and dysplasia as the ulcer group; well-differentiated, undifferentiated and mucinous carcinoma as the cancer group. The accuracy of recognizing the several spectra was 90%: nine trace element spectra (Cu, Zn, Ni, Co, Cr, Cd, Mn, Fe and Mg) for the tissue specimens from the cancer and ulcer groups; six (Cu, Zn, Mn, Co, Cr and Cd) for dysplasia and well-differentiated adenocarcinoma tissues; five (Cu, Ni, Cr, Cd and Fe) for the whole blood specimens from these two groups and six (Cu, Zn, Cr, Cd, Fe and Ni) for the whole blood specimens from dysplasia and peptic ulcer (including 10 normal individuals). The data were treated by non-linear mapping method and calculated by TRS-80 III type microcomputer.
authors.affiliation: Shanghai Metallurgical Institute, Chinese Academy of Sciences.
authors.forename: Z X
authors.initials: ZX
authors.lastname: Liu
authors.forename: Q
authors.initials: Q
authors.lastname: Miao
authors.forename: N Y
authors.initials: NY
authors.lastname: Chen
authors.forename: K X
authors.initials: KX
authors.lastname: Shi
authors.forename: L Z
authors.initials: LZ
authors.lastname: Xu
authors.forename: W F
authors.initials: WF
authors.lastname: Cheng
authors.forename: X D
authors.initials: XD
authors.lastname: Guo
authors.forename: Q X
authors.initials: QX
authors.lastname: Yu
authors.forename: Y X
authors.initials: YX
authors.lastname: Zhao
mesh_terms: D000230:Adenocarcinoma / Q000097:blood; D002288:Adenocarcinoma, Mucinous / Q000097:blood; D000368:Aged; D005753:Gastric Mucosa / Q000032:analysis; D006801:Humans; D008297:Male; D008875:Middle Aged; D010363:Pattern Recognition, Automated; D010437:Peptic Ulcer / Q000097:blood*; D013274:Stomach Neoplasms / Q000097:blood*; D014131:Trace Elements / Q000032:analysis / Q000097:blood*
chemical_list: D014131:Trace Elements