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Objective:To evaluate the value of serum pepsinogen Ⅰ and Ⅱ combined with gastrin-17 in screening precancerous lesions of gastric cancer in physical examination population.Methods:Serum pepsinogen, gastrin-17 and Helicobacter pylori (Hp) antibody were detected in 18 354 physical examination people from July to December 2017 in Wenrong Hospital, Hengdian, Dongyang. The patients were divided into youth group (18 to 39 years old), middle-aged group (40 to 59 years old) and elderly group (≥60 years old) according to their ages. The correlation between the serological level of the above indexes and age was analyzed; according to the new ABC method, the test results were divided into groups A, B, C and D. The patients in group C and D were examined by gastroscopy. The differences of gastric mucosal atrophy or intestinal metaplasia and other precancerous lesions detected by gastroscopy in different age groups were compared.Results:Finally, 18 354 cases were enrolled, including 9 614 males and 8 740 females. With the increase of age, the proportion of group C and D increased gradually. In group C, 181 cases underwent gastroscopy, including 39 cases of atrophic gastritis, 29 cases of intestinal metaplasia and 3 cases of dysplasia/intraepithelial neoplasia, the detection rate of precancerous lesions was 39.23%; in group D, 94 cases underwent gastroscopy, including 22 cases of atrophic gastritis and 13 cases of intestinal metaplasia, the detection rate of precancerous lesions was 37.23%. The proportion of gastric precancerous lesions in group C and D was 29.63% in the young group, 69.70% in the middle-aged group and 71.58% in the old group, respectively. There was significant difference compared with the young group ( P<0.01); atypical hyperplasia occurred in 2.02% and 9.47% of the middle-aged group and the elderly group. Conclusions:The combined detection of serum pepsinogen Ⅰ and Ⅱ and gastrin-17 levels is of great value in the screening of precancerous lesions of gastric cancer; when this method used for early gastric cancer screening in healthy population, it is necessary to consider the influence of age for the risk stratification of gastric cancer.
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Objective:To correlate the expression of microRNA (miRNA)-21 and miRNA-335-5p with pepsinogen and gastrin-17 in patients with gastric cancer.Methods:Sixty-one patients with gastric cancer who received treatment in Linhai Second People's Hospital between January 2019 and January 2021 were included in the patient group. An additional 60 healthy patients who concurrently received physical examination were included in the control group. Serum pepsinogen I, pepsinogen II and gastrin-17 levels were determined by latex-enhanced immunoturbidimetry. miRNA-21 and miRNA-335-5p expression were determined by quantitative reverse transcription-polymerase chain reaction. Serum pepsinogen I, pepsinogen II and gastrin-17 levels and miRNA-21 and miRNA-335-5p expression were compared between the two groups. The sensitivity and specificity of miRNA-21 and miRNA-335-5p in the diagnosis of gastric cancer were analyzed. The correlation between miRNA-21 and miRNA-335-5p expression and pepsinogen I, pepsinogen II and gastrin-17 levels was analyzed.Results:Serum pepsinogen I and gastrin-17 levels in the patient group were (54.36 ± 9.89) μg/L and (13.74 ± 1.89) pg/mL, respectively, which were significantly lower than those in the control group [(112.31 ± 23.24) μg/L, (18.75 ± 2.36) pg/mL, t = 17.89, 12.90, both P < 0.05]. Serum pepsinogen II level in the patient group was significantly higher than that in the control group [(24.35 ± 4.53) μg/L vs. (20.37 ± 3.28) μg/L, t = 5.52, P < 0.05]. The relative mRNA expression of miRNA-21 in the patient group was significantly higher than that in the control group [(3.42 ± 0.61) vs. (0.53 ± 0.12), t = 30.01, P < 0.05]. The relative mRNA expression of miRNA-335-5p in the patient group was significantly lower than that in the control group [(0.32 ± 0.17) vs. (1.65 ± 0.35), t = 26.65, P < 0.05]. The receiver operating characteristic curve analysis showed that the sensitivity and specificity of miRNA-21 in the diagnosis of gastric cancer were 74.36% and 68.18%, respectively, and they were 79.49% and 60.90% for miRNA-335-5p, respectively. There was a negative linear correlation between miRNA-21 and pepsinogen I and gastrin-17 levels ( r = -0.82, -0.74), but there was a positive linear correlation between miRNA-21 and pepsinogen II levels ( r = 0.76). There was a positive linear correlation between miRNA-335-5p and pepsinogen I and gastrin-17 ( r = 0.79, 0.72), but there was a negative linear correlation between miRNA-335-5p and pepsinogen II levels ( r = -0.70). Conclusion:miRNA-21 is highly expressed in patients with gastric cancer, while miRNA-335-5p is lowly expressed. miRNA-21 and miRNA-335-5p are highly correlated with pepsinogen and gastrin-17 levels. miRNA-21 and miRNA-335-5p can be used as effective indices for diagnosis of gastric cancer. Findings of this study are highly innovative and scientific.
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Objective:To investigate the changes and clinical significance of gastrin 17 (G-17) in patients with diabetic nephropathy (DN).Methods:One hundred and twenty-four DN patients admitted to Hefei Second People′s Hospital from July 2018 to December 2020 were selected as the DN group, and divided into Ⅰ-Ⅱstage subgroup (68 cases) and Ⅲ-Ⅴ stage subgroup (56 cases) according to the stage of DN.Inaddition, 100 cases of type 2 diabetes mellitus(T2DM) patients without DN were selected as the T2DM group, and 100 healthy subjects who examined during the same period were selected as the control group. The levels of G-17, serum creatinine (SCr), evaluated glomerular filtration rate (eGFR) and other index in each group were detected. The normal level of G-17 was 1-7 pmol/L. G-17>7 pmol/L and ≤ 15 pmol/L was as marginal rising, and G-17>15 pmol/L was as rising.Results:The marginal rising rate of G-17 in the DN group was higher than that in the T2DM group: 43.5%(54/124) vs. 23.0%(23/100); the rising rate of G-17 in the DN group was higher than that in the T2DM group and the control group: 21.0%(26/124) vs. 7.0%(7/100), 4.0%(4/100), and the differences were statistically significant ( P<0.05). The marginal rising rate and rising rate of G-17 in Ⅲ-Ⅴstage subgroup were both higher than those in the Ⅰ-Ⅱ stage subgroup and the T2DM group: 58.9%(33/56) vs. 30.9%(21/68), 23.0%(23/100); 32.1%(18/56) vs. 11.8%(8/68), 7.0%(7/100), and the differences were statistically significant ( P<0.05). The marginal rising rate and rising rate of G-17 in DN patients with a disease course of ≥3 years was higher than that in patients with a disease course of <3 years and the T2DM group: 53.0%(44/83) vs. 24.4%(10/41), 23.0%(23/100); 27.7%(23/83) vs. 7.3%(3/41), 7.0%(7/100), and the differences were statistically significant ( P<0.05). Correlation analysis showed that G-17 was positively correlated with SCr ( r = 0.367, P<0.001) and negatively correlated with eGFR ( r = -0.619, P<0.001) in DN patients. Conclusions:The level of G-17 in ND patients is significantly increased, which is closely related to DN staging and can provide an auxiliary indicator for screening renal function in patients with T2DM.
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OBJECTIVE： To provide reference for clinical treatment of precancerous lesions of gastric cancer. METHODS： A total of 685 patients with precancerous lesions of gastric cancer were selected from our hospital during Jan.-Dec. 2018. Totally 455 patients in treatment group received individualized TCM therapy according to syndrome differentiation， 7 days as a course， 4 courses in total； another 230 patients in control group received Folic acid tablets， 5 mg， tid， for 2 months. The changes of pepsinogen ratio （PGⅠ/PGⅡ）， gastrin-17 （G-17） and Helicobacter pylori （Hp）before and after treatment， and the occurrence of ADR were compared between 2 groups. RESULTS： After treatment， total response rate of treatment group was 90.3％， which was significantly higher than 68.6％ of control group. PGⅠ/PGⅡ of treatment group were increased significantly， which was significantly higher than control group； G-17 levels of 2 groups were decreased significantly （P＜0.05）； there was no statistical significance in Hp level between 2 groups before and after treatment （P＞0.05）. There was no statistical significance in the incidence of ADR between 2 groups（P＞0.05）. CONCLUSIONS： Chinese medicine syndrome differentiation individual therapy can significantly delay the development of precancerous lesions of gastric cancer， and has good safety.
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Objective To compare the consistency and detection rate of early gastric cancer (EGC) of three different methods including anti-Helicobacter pylori (Hp) antibody combined with pepsinogen (PG) (ABC method),serum PG combined with gastrin-17 (G-17) (new ABC method) and the new scoring system.Methods Serological tests were performed in Zhejiang population,which divided the subjects into low risk,intermediate risk and high risk groups.High risk subjects were examined by endoscopic and pathological examination.SPSS19.0 were used to evaluate the consistency of three methods.According to the receiver operating characteristic (ROC) curve,the ratio of G-17 to PG (PGR) was calculated for the optimal diagnostic cut-off value of EGC.Results A total of 30 126 subjects were recruited.Based on the data of ABC method,the proportions of low risk,intermediate risk and high risk group were 15 368 (51.01％),13 246 (43.97％),and 1 512 (5.02％),respectively.These proportions by the new ABC method were 20 584 (68.32％),8 990 (29.84％),552 cases (1.83％),respectively.By new scoring system,these were 20 810 (69.08％),8 059 (26.75％),and 1 257 (4.17％),respectively.Among them,1 263 subjects underwent endoscopy and 22 cases (1.74％) were finally diagnosed as gastric cancer including 19 EGC (86.4％).There were 1 case (0.35％),14 cases (1.84％),and 7 cases (3.21％) with gastric cancer in low risk,intermediate risk,and high risk groups by ABC methods,respectively.Gastric cancer patients were 7 (1.68％),10 (1.38％),and 5 (4.10％) in three groups respectively by new ABC methods.Via new scoring system,gastric cancer were detected in 5 (0.66％),9 (2.22％),and 8 (7.84％) patients of three risk groups respectively.The consistency of three screening methods was poor.The detection rate of gastric cancer in high risk group was higher than that in the other two (P＜0.05).The area under the curve (AUC) for diagnosis of gastric cancer by G-17 and PGR was 0.588 and 0.729,respectively.According to the PGR cut-off value determined by the fitted model,the incidence of gastric cancer in the low,intermediate and high risk groups was 0.94％,1.97％,and 6.31％,respectively.When the cut-off value is PGR＜4.135,the sensitivity is 0.855 and the specificity is 0.545.Conclusion The new scoring system has a better predictive value in EGC screening.The detection rate of EGC in high risk group is higher than that in low and intermediate risk groups.
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Objective In order to detect gastric fluid pH value,Gastrin-17 (G-17),pepsinogen Ⅰ (PGⅠ),pepsinogen Ⅱ (PGⅡ) and figure out gastric secretory function in patients of functional constipation (FC).Methods 51 healthy individuals were chosen as control group and 42 patients with FC were chosen as FC group,of which serum gastric fluid pH value,Hp ratio,G-17,PGⅠ and PGⅡ were detected and analyzed.Results Compared with control group,gastric fluid pH value were marked reduced (t=2.180,P=0.032),and G-17,PGⅠ level in blood were marked increased in FC group (G-17:t=2.703,P=0.008;PGⅠ:t=7.388,P＜0.001).Hp ratio and blood level of PGⅡ in two groups showed no significant difference (Hp ratio:x2=0.031,P=0.861;PGⅡ:t=1.666,P=0.100).Conclusion Increased gastric secretory function level were found in patients of functional constipation.It gave a hint that stimulated gastroenteritic axis existed in patients of functional constipation.
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Objective:To investigate the feasibility of detection of serum pepsinogen (PG),gastrin-17 (G-17) and Helicobacter pylori antibody (anti-HP)in the gastric cancer screening,and to elucidate its clinical value. Methods:A total of 208 patients with early gastric cancer were selected as observation group;at the same time, 208 healthy examinees were regarded as blank control group.The levels of PGⅠ,PGⅡ and G-17 of the subjects in two groups were detected by enzyme-linked immunosorbent assay and latex-enhanced immunoturbidimetry;the positive rates of anti-HP were detected by 13 C urea breath test;the serum levels of PG Ⅰ,PG Ⅱ and PG Ⅰ /PGⅡ ratio of the anti-HP positive subjects (anti-HP positive group)and anti-HP negative subjects (anti-HP negative group)were compared and analyzed.Results:Compared with blank control group,the serum PGⅠ / PGⅡ ratio and PGⅠ level of the subjects in observation group were significantly decreased (P <0.01),and the levels of PG Ⅱ,G-17 and the positive rate of anti-HP were increased (P <0.01).Compared with anti-HP negative group,the serum PGⅠ / PGⅡ ratio and PGⅠ level of the subjects in anti-HP positive group were significantly decreased (P <0.01).The levels of PGⅡ and G-17 were significantly increased (P < 0.01).Conclusion:The detection of positive rate of anti-HP combined with the ratio of PGⅠ /PGⅡ has important clinical significance in gastric cancer screening.The levels of G-17 and PG Ⅱ in the epithelial neoplasia lesion tissue can be used as indicators of gastric precancerous lesions.
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Objective To investigate the infection status of Helicobacterpylori (HP) in the physical examination population and the contents of pepsinogen Ⅰ (PGⅠ),pepsinogen Ⅱ (PGⅡ) and gastrin-17 (G-17) in serumand the association with HP infection.Methods In this study,781 cases of physical examination were included.Serum HP antibody typing,PGl,PGⅡ and G-17 were measured by Helicobacter pylori antibody kit and enzyme-linked immunosorbent assay.The levels of PGⅠ,PGⅡ,PGⅠ/PGⅡ and G-17 were analyzed by SPSS22.0 analysis system,and the difference of HP infection rate between HP infection group and non-infected patients and different types of infection was analyzed.Analysis of the infection rate and the difference of each age group.Results There was no significant difference between the two groups (x2 =0.284,P=0.594),and there was significant difference between different age groups (x2 =8.523,P=0.014).The levels of PGⅠ,PGⅡ,PGR and G-17 in serum were statistically significant (Z=8.616～ 14.125,P=0.000) compared with those of HP positive and negative.There were significant differences in serum PGⅡ and PGR levels between HP Ⅰ type and HP Ⅱ type infection (Z=3.444,3.385,P=0.001).The levels of PGⅠ and PGⅡ in serum were significantly higher than those in other groups (Z=5.012,4.478,P=0.000).PGⅠ and PGⅡ were higher in women than in females (Z=0.444～0.941,P＞0.05),with the increase of age,PGⅠ,PGⅡ and G-17 has an upward trend,while PGR showed a downward trend.Conclusion The level of serum PG was closely related to gender,age and HP infection,and was closely related to HP infection classification.The combination of HP antibody typing and serum PG and G-17 as a routine test of gastric function is of great significance in the screening and evaluation of early gastric diseases.
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Background: Chronic atrophic gastritis (CAG) is a precancerous lesion of gastric cancer.The diagnostic value of serum gastrin-17 (G-17) level for CAG differs substantioulsy, and Helicobacter pylori (Hp) infection may play an important role.Aims: To explore the effect of Hp infection on serum G-17 level, and the diagnostic value of serum G-17 level for CAG under different Hp infection status.Methods: A total of 204 patients with chronic non-atrophic gastritis and 81 patients with CAG from May 2014 to May 2015 at the three different hospitals were enrolled.Gastroscopy was performed, fasting serum G-17 level, postprandial serum G-17 level and Hp-IgG antibody were determined by ELISA.Results: Fasting serum G-17 level was significantly increased in Hp positive group than in Hp negative group (P=0.001), and postprandial serum G-17 level was significantly decreased in CAG group than in non-atrophy group (P=0.002).AUC of fasting serum G-17 level for diagnosing Hp positive and negative CAG were 0.634 (95% CI: 0.537-0.732) and 0.576 (95% CI: 0.478-0.675), respectively, the accuracy were 62.6% and 54.9%, respectively.AUC of postprandial serum G-17 level for diagnosing Hp positive and negative CAG were 0.675 (95% CI: 0.581-0.769) and 0.595 (95% CI: 0.495-0.694), respectively, the accuracy were 61.8% and 53.1%, respectively.Conclusions: Hp infection has impact on serum G-17 level, as a result, the diagnostic value of G-17 level for CAG is different for patients with and without Hp infection.Diagnostic values of fast and postprandial serum G-17 for Hp positive CAG are higher than Hp negative CAG.
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Objective To discuss the application value of serum pepsinogen Ⅰ(PGⅠ),carcinoembryonic antigen(CEA) and gastrin-17(G-17) in assessment of chemotherapy curative effect in patients with gastric cancer.Methods From Feb.2014 to Jun.2016,a total of 90 patients with gastric cancer were selected,and treated with docetaxe/cisplatin/5-fluorouracil(DCF) scheme for two courses.All patients were divided into effective group and ineffective group,according to the assessment criterion,proclaimed by World Health Organization.Serum levels of CEA,PGⅠand G-17 were detected before and after treatment.Curative effect was also assessed according to the changes of CEA,PGⅠand G-17.Receiver operating characteristic curve(ROC curve) was used to analyze the performance of PGⅠ,CEA and G-17 in the assessment of curative effect.Results Chemotherapy was effective in 29 cases,accounting for 32.22%.After chemotherapy,serum CEA and G-17 level of effective group were lower than ineffective group,while PGⅠ level was higher(P<0.05).ROC curve analysis showed that the area under ROC curve,sensitivity and specificity of combined detection for the assessment of curative effect were higher than single detection of serum PGⅠ,CEA and G-17,taking 70 g/L,7.35 g/L and 14.22 pmol/L as cut-off value(P<0.05).Conclusion Combined detection of serum PGⅠ,CEA and G-17 could be with high accuracy,specificity and sensitivity for the assessment of chemotherapy effect in patients with gastric cancer.
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Objective To evaluate the diagnostic value of gastrin?17( G?17) and pepsinogen( PG) for gastric cancer. Methods A multicenter cross?sectional study of patients with continuous stomach discomfort from four centers including Changhai Hospital Affiliated to Second Military Medical University, the First Hospital Affiliated to Anhui Medical University, Qinghai Provincial People′s Hospital and the First Hospital Affiliated to Zhejiang University of Chinese Medicine from May 2014 to September 2015 was conducted. Before gastroscopy, fasting serum gatrin?17 and pepsinogen were analyzed by enzyme?linked immunosorbent assay(ELISA). The efficacy of G?17 and PG were evaluated according to endoscopic and pathological results. Results Based on the results of the pathological diagnosis, 1 122 cases were enrolled and divided into chronic atrophic gastritis group ( 548 cases ) , chronic non?atrophic gastritis group ( 370 cases), and gastric cancer group(204 cases). Serum G?17 and PGⅡ levels significantly increased(P7 pmol/L and PGR7 pmol/L and PGⅡ>10μg/L was regarded as the cut?off value, the sensitivity, specificity, accuracy, positive predictive value and negative predictive value were 48?04%, 79?74%, 73?98%, 34?51% and 87?35% respectively. If PGR10 μg/L was regarded as the cut?off value, the sensitivity, specificity, accuracy, positive predictive value and negative predictive value were 33?82%, 84?86%, 75?58%, 33?17% and 85?23% respectively. Based on logistic regression analysis of the independent variables of high serum G?17 value(>7 pmol/L), low serum PGR value(10 μg/L), their OR value were 2?592, 2?237 and 1?864 respectively, and high serum G?17 value showed the highest risk of gastric cancer. Conclusion High serum G?17 and PGⅡ, low PGR are indicators of gastric cancer. Combination of G?17 and PGR has the best diagnostic value for gastric cacer. Gastric cancer can be screened in large scale by combining G?17 and PGR in order to improve the early diagnostic rate of gastric cancer and reduce the mortality of gastric cancer in our country.
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Objective To study the value of 4‐item examination of gastric function in the evaluation of disease severity and course of peptic ulcer .Methods The 4‐item examination of gastric function ,including PGⅠ ,PGⅡ ,PGⅠ /PGⅡ ,gastrin 17 and He‐licobacter pylori(Hp) positive rate ,were detected by adopting enzyme linked immunosorbent assay (ELISA) in 175 cases of peptic ulcer(study group) and 60 persons undergoing physical examination(control group) .The Spearman correlation coefficient was used to analyze the relationship between the 4‐item gastric function examination with the severity and course of peptic ulcer .Results The levels of PGⅠ ,PGⅡ ,gastrin 17 and Hp positive rate in the study group were significantly higher than those in the control group(P<0 .05) ,while PGⅠ /PGⅡwas significantly lower than that in the control group(P<0 .05) .The values of PG Ⅰ /PGⅡfrom high to low were in turn the scarring stage group ,healing stage group and active stage group ,other indexes from high to low were in turn active stage group ,healing stage group and scarring stage group .The levels of PGⅠ ,PGⅡand gastrin 17 and Hp posi‐tive rate in the patients with disease course ≥3 years were significantly higher than those in the patients with disease course<3 years(P<0 .05) .The severity and disease course in the patients with peptic ulcer were positively correlated with the levels of PGⅠ ,PGⅡ ,gastrin 17 and Hp positive rate(P<0 .05) and negatively correlated with PG Ⅰ /PGⅡ(P<0 .05) .Conclusion In the pa‐tients with peptic ulcer ,4‐item gastric function examination is closely correlated with the severity and course of illness ,which can serve as the index for evaluate the severity and course of disease ,thus increases the clinical treatment pertinence ,reduces the occur‐rence of antibacterial drugs abuse ,and is worthy of being promoted and applied in clinic .
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Objective To investigate the clinical value of serum pepsinogen(PG)Ⅰ,Ⅱ and gastrin-17(G-17)levels in early di-agnosis for atrophic gastritis and gastric cancer.Methods The study was performed on a case-control trial,and 430 subjects were recruited.Each of them underwent endoscopy biopsies before serum tests were performed.These patients were further divided into three groups based on endoscopic and histological findings:160 non-atrophic gastritis group,118 atrophic gastri-tis group and 152 gastric cancer group.Serum samples of PGⅠ,PGⅡ and G-17 were analyzed by enzyme-linked immunosor-bent assay(ELSIA),and calculated the values of PGⅠ/PGⅡratio.Results Compared with the non-atrophic gastritis group, serum PGⅠ and G-1 7 values in atrophic gastritis and serum PGⅠ,PGⅡ,PGⅠ/PGⅡratio and G-1 7 values in gastric cancer group decreased significantly (P<0.05);compared with the atrophic gastritis group,serum PGⅠ and G-17 values in gastric cancer group decreased significantly (P<0.05).By using receiver operating characteristic curves (ROC),the cut-off points of PGⅠ84.706μg/L,PGⅡ 10.873μg/L,PGⅠ/PGⅡ ratio 11.008 and G-178.265 pg/L in atrophic gastritis group,PGⅠ65.145μg/L,PGⅡ 10.089μg/L,PGⅠ/PGⅡ ratio 6.375 and G-17 4.971 pg/L in gastric cancer group.Conclusion Low serum PGⅠ,PGⅡ,PGⅠ/PGⅡ ratio and G-1 7 values are biomarkers of atrophic gastritis and gastric cancer and valuable for the early diagnosis of gastric cancer.
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Background:Serum levels of pepsinogen( PG),gastrin-17( G-17)and Helicobacter pylori( Hp)infection are closely associated with gastric cancer. Studies on relationship of serum levels of PG and G-17 with Hp infection in Uygur and Han population with gastric cancer in Xinjiang area are rare. Aims:To investigate serum levels of PG and G-17 and their relationships with Hp infection in Uygur and Han population with gastric cancer in Xinjiang area. Methods:A total of 198 Uygur and 50 Han gastric cancer patients were enrolled,and healthy people with the same race were served as normal controls. Serum levels of PGⅠ,PGⅡ,G-17 were determined by ELISA,PGⅠ/ PGⅡ ratio(PGR)was calculated. Urea breath test and stool Hp antigen test were used to detect Hp infection. Results:Serum PGⅠ level and PGR in Uygur and Han patients with gastric cancer were significantly decreased than those in corresponding control groups(P < 0. 05),and serum levels of PGⅡ and G-17 were significantly increased(P < 0. 05). Serum PGⅠ level and PGR in Uygur gastric cancer patients were significantly decreased than those in Han gastric cancer patients(P < 0. 05),and serum G-17 level was significantly increased(P < 0. 05). Hp infection rate in Uygur and Han patients with gastric cancer were significantly increased than those in corresponding control groups( P < 0. 05). Serum level of PG Ⅰ and PGR were significantly decreased in Han gastric cancer patients with Hp-positive than in Hp-negative patients,and serum levels of PGⅡ and G-17 were significantly increased(P < 0. 05). Serum levels of PGⅠ,PGⅡ and G-17 were significantly increased in Uygur gastric cancer patients with Hp-positive than in Hp-negative patients,PGR was significantly decreased(P < 0. 05). Serum levels of PGⅠ,PGⅡ and PGR were significantly increased in Uygur gastric antral cancer patients than in gastric corpus cancer and proximal gastric cancer patients(P < 0. 05). Conclusions:Decreased serum PGⅠ level,PGR and increased serum level of G-17 can be used as biomarkers to screen gastric cancer in Uygur and Han population in Xinjiang area. Hp infection in Uygur and Han patients with gastric cancer is related to the changes of serum level of PGⅠ,PGR and G-17.