Analysis on association between polymorphism of ITGA1 gene and Helicobacter pylori infection / 吉林大学学报(医学版)

Objective; To investigate the association between single nucleotide polymorphism (SNP) of integrin α-subunit 1 (ITGA1) gene and Helicobacter pylori (H. pylori) infection, and to provide the basis for the prevention and treatment of H. pylori infection-related diseases. Methods; The blood samples of 281 examinees were detected. ELISA method was used to confirm the status of H. pylori infection in the blood of the examinees. The samples were divided into H. pylori negative group (n= 159) and H. pylori positive group (n= 122) according to the antibody titers. The genotypes of rsl862610, rs2432143, and rs2447867 sites in ITGA1 gene were detected by TaqMan method. The haplotype was constructed by Haploview software 4. 0 and unconditional Logistic regression was used to evaluate the associations between the SNPs of alleles, genotypes and haplotypes and H. pylori infection. Results; The SNPs of rsl862610 and rs2432143 sites in ITGA1 gene were not associated with H. pylori infection (P>0. 05). The SNPs of rs2447867 site in ITGA1 gene was significantly associated with H. pylori infection (P0. 05). Conclusion: The SNP of rs2447867 site in ITGA1 gene is associated with H. pylori infection, and carrying CT genotype can decrease the risk of H. pylori infection.

Clinical research of quality of life with nutritious and immune status after radical gastrectomy / 中华临床营养杂志

Objective To compare the quality of life,nutritional status,and immune function after radical proximal gastrectomy,radical total gastrectomy,or radical distal gastrectomy.Methods Totally 163 patients underwent radical gastrectomy for gastric cancer in our department from Jun 2002 to Jun 2008,among whom 36 cases underwent proximal gastrectomy,and 78 cases underwent total gastrectomy,and 49 cases underwent distal gastrectomy.The indicators for their quality of life,nutritional status,and immune function were compared among these three groups.Results The scores for anxiety was significantly higher in the radical proximal gastrectomy group compared with radical total gastrectomy and radical distal gastrectomy groups 1 year(79.8 ± 4.3 vs 72.2 ± 5.2and 70.6±5.5,P=0.037)and 2 years(80.3 ±4.4 vs 70.2±4.8 and 68.6±5.3,P=0.041)after surgery.The scores for the sense of taste was significantly higher in the radical total gastrectomy group compared with radical proximal gastrectomy and radical distal gastrectomy groups 1 year(82.6 ± 1.3 vs 71.1 ±4.8 and 72.3 ± 3.6,P =0.033)and 2 years(88.1 ± 3.4 vs 65.6 ± 5.2 and 69.6 ± 4.8,P =0.046)after surgery.The scores for body appearance was significantly higher in the radical total gastrectomy group compared with radical proximal gastrectomy and radical distal gastrectomy group 0.5 years(45.5 ± 2.4 vs 35.6 ± 2.2 and 33.3 ± 2.5,P =0.031),1 year(49.2 ± 1.9 vs 33.2 ±2.8 and 32.7 ±2.3,P =0.039),and 2 years(47.6 ±2.5 vs 32.4 ±4.0 and 30.0 ± 2.2,P =0.025)after surgery.The scores for dysphagia was significantly lower in the radical distal gastrectomy group compared with radical proximal gastrectomy group and radical total gastrectomy group 1 year (26.6±3.0vs38.1±2.2 and 35.1 ±2.3,P=0.043)and 2 years(17.3±2.5 vs 36.3±3.1 and 34.1 ±2.4,P =0.021)after surgery.The scores for stomach pain was significantly higher in the radical proximal gastrectomy group compared with radical total gastrectomy 0.5 years(41.2 ± 3.3 vs 37.1 ± 2.5,P =0.039),1year(38.1±2.2vs35.1±2.2,P=0.023),2 years(36.3±3.1 vs 34.1±2.4,P=0.034)after surgery.Radical distal gastrectomy group were significantly lower than those in radical proximal gastrectomy group and radical total gastrectomy group 0.5 years(38.6 ± 3.7 vs 55.3 ± 4.2 and 42.3 ± 3.9,P =0.034),1 year(35.4 ± 3.4 vs52.3 ±3.9 and 39.3 ±4.2,P=0.040),and 2 years(31.6±3.7 vs 53.3 ±4.2 and 35.5 ±3.7,P=0.011)after surgery.Radical proximal gastrectomy group compared with radical total gastrectomy,0.5 years(55.3 ± 4.2vs 42.3±3.9,P=0.036),1 year(52.3±3.9 vs 39.3±4.2,P=0.042),2 years(53.3±4.2 vs 35.5±3.7,P =0.019)after surgery,the difference has statistically significant.The scores for hiccup was significantly lower in the radical distal gastrectomy group compared with radical proximal gastrectomy group and radical total gastrectomygroup,0.5 years(16.8±3.3 vs 45.6±2.5 and 40.3±2.8,P=0.019),1 year(15.6±3.4 vs 40.7±2.3 and 36.5 ± 3.1,P =0.025),2 years(14.4 ± 2.6 vs 39.3 ± 1.9 and 35.6 ± 3.2,P =0.042)after surgery.Radical proximal gastrectomy group compared with radical total gastrectomy 0.5 years(45.6 ± 2.5 vs 40.3 ± 2.8,P=0.039),1 year(40.7±2.3 vs 36.5±3.1,P=0.019),2 years(39.3±1.9 vs 35.6±3.2,P=0.028)after surgery,the difference has statistically significant.In the restricted diet,the radical distal gastrectomy group had significantly lower scores compared with radical proximal gastrectomy group and radical total gastrectomy group 0.5 years(22.4 ±3.8 vs 38.4 ±2.3 and 42.1 ±3.1,P=0.020),1 year(18.7 ±2.3 vs 35.3 ±3.2 and 36.8 ±3.4,P =0.018),and 2 years(16.5 ± 2.7 vs 33.4 ± 2.7 and 32.4 ± 2.8,P =0.026)after surgery.The level of albumin in different periods was significantly lower in radical total gastrectomy groups compared with radical proximal gastrectomy and radical distal gastrectomy group 0.5 years[(30.6 ± 2.5)vs(34.3 ± 2.6)and(35.4 ±2.5)g/L,P=0.025],1 year[(32.4±2.1)vs(35.3 ±2.2)and(38.9 ±2.0)g/L,P=0.041],2 years [(32.1 ±2.4)vs(36.4 ±2.1)and(42.4 ±2.3)g/L,P=0.016]after surgery.The level of prealbumin in different periods was significantly lower in radical total gastrectomy groups compared with radical proximal gastrectomy and radical distal gastrectomy group 0.5 years[(209.1 ±5.7)vs(218.2 ±5.9)and(225.5 ±7.6)mg/L,P =0.030],1 year[(215.5 ±4.6)vs(223.1±3.7)and(236.1 ±4.4)mg/L,P=0.019],2 years[(216.1 ±3.1)vs(221.5 ± 4.3)and(240.5 ± 5.6)mg/L,P =0.024)]after surgery.The level of transferrin in different periods was significantly lower in radical total gastrectomy groups compared with radical proximal gastrectomy and radical distal gastrectomy group 0.5 years[(153.1 ± 3.2)vs(167.9 ± 2.4)and(170.3 ± 3.8)mg/L,P =0.017],1 year[(157.1 ±3.8)vs(169.4±2.2)and(175.4±3.7)mg/L,P=0.040],2 years[(156.4±2.7)vs(173.1 ± 1.8)and(174.1 ±2.8)mg/L,P =0.031]after surgery.The level of hemoglobin in different periods was significantly lower in radical total gastrectomy groups compared with radical proximal gastrectomy and radical distal gastrectomy group 0.5 years[(109.5 ± 4.6)vs(120.2 ± 2.7)and(122.6 ± 3.9)g/L,P =0.016],1 year[(103.6±2.9)vs(117.5 ±16.6)and(125.2±1.5)g/L,P =0.030],2 years[(105.5 ±1.6)vs(106.6 ± 2.9)and(132.6 ± 2.9)mg/L,P =0.028]after surgery.The level of retinol binding protein in different periods was significantly lower in radical total gastrectomy groups compared with radical proximal gastrectomy and radical distal gastrectomy group 0.5 years[(32.3 ± 2.1)vs(167.9 ± 2.4)and(37.6 ± 2.8)mg/L,P =0.013],1 year[(33.9 ± 1.6)vs(39.3 ±2.5)and(38.5 ±3.5)mg/L,P=0.009],2 years[(35.3 ±2.7)vs(38.9 ± 1.4)and(39.1 ±2.3)mg/L,P =0.034]after surgery.The weight in different periods was significantly higher in radical distal gastrectomy groups compared with radical proximal gastrectomy and radical total gastrectomy group 0.5 years[(63.4±2.5)vs(60.7 ±3.2)and(59.4±1.1)kg,P=0.017],1 year [(66.1 ±3.7)vs(59.4±2.1)and(56.4±6.1)kg,P=0.028],2 years[(67.4 ±4.1)vs(57.4 ±4.1)and(53.3 ± 2.4)kg,P =0.035]after surgery.The level of CD4 + in different periods was significantly lower in radical total gastrectomy groups compared with radical proximal gastrectomy and radical distal gastrectomy groups 0.5 years(30.46 ±4.45 vs 33.32 ±5.6 and 34.24 ±2.54,P =0.036),1 year(32.84 ± 3.61 vs 35.30 ±4.27and 35.49±3.01,P=0.025),and 2 years(31.61±4.04 vs36.24±4.71 and 37.74±4.15,P=0.030)after surgery.Also,the radical total gastrectomy group had significantly lower CD8 + than radical proximal gastrectomy and radical distal gastrectomy groups 0.5 year(24.16 ± 5.07 vs 24.12 ± 5.9 and 25.25 ± 3.54,P =0.036),1 year(32.84 ±3.61 vs 35.30 ±4.27 and 35.49 ±3.01,P =0.025),and 2 years(31.61 ±4.04 vs36.24 ±4.71 and 37.74 ±4.15,P =0.030)after surgery.The level of IgM in different periods was significantly lower in radical total gastrectomy groups compared with radical proximal gastrectomy and radical distal gastrectomy group 0.5 year(1.20 ±0.17 vs 1.36 ±0.22 and 1.41 ±0.27,P =0.026),1 year(1.25 ±0.14 vs 1.38 ±0.19 and 1.40 ± 0.15,P =0.037),and 2 years(1.29 ± 0.17 vs 1.39 ± 0.16 and 1.42 ± 0.13,P =0.017)after surgery.Also,the radical total gastrectomy group had significantly lower IgA than radical proximal gastrectomy and radical distal gastrectomy groups 0.5 year(2.03 ± 0.21 vs 2.47 ± 0.32 and 2.43 ± 0.25,P =0.020),1 year(2.14 ±0.21 vs 2.64 ±0.23 and 2.52 ±0.17,P =0.025),and 2 years(2.25 ±0.19 vs 2.63 ±0.18and 2.74 ± 0.16,P =0.033)after surgery.Conclusion The distal gastrectomy may have better quality of life,nutrititional status,and immune function than the proximal gastrectomy and total gastrectomy,whereas the latter two procedures also have certain advantages.

Role of intracellular Ca~(2+) in diallyl trisulfide induction of apoposis in gastric cancer cells / 中国药理学通报

Aim To investigate whether DATS induce MGC803 cell apoptosis and the relationship betweenapoptosis and Ca~(2+) disruption. Methods MGC-803 cell growth inhibition was measured by MTT assay. Tunnel and flow cytometry methods were used to determine the induction of apoptosis and Ca2+ homeostasis disruption. Result MTT assay showed that the inhibitory rates on MGC-803 cell growth of different concentrations of DATS 4,8,12,16 and 24 mg?L-1 were 0.231?0.037,0.305?0.036,0.455?0.029,0.607?0.058,0.751?0.019 respectively. Flow cytometry analysis showed that treating MGC803 cell with DATS significantly increased the percentage of apoptosis cells and intracellular Ca2+. Treatment of cells with 1,2-bis(2-aminophenoxye-thane)-N,N,N-tetraacetic acid tetrakis acetoxymethyl ester (BAPTA-AM), cellular Ca2+ chelator, resulted in abolishment of the elevation of intracellular Ca~(2+) and blockage of DATS induced apoptotic of MGC-803. Conclusoin DATS could induce apoptosis of MGC-803 cells through the mechanism of Ca~(2+) homeostasis disruption.

Effect of growth inhibition of diallyl trisulfide on gastric cancer MGC-803 cell line in vitro / 中国药理学通报

AIM: To study the effects of growth inhibition of different concentrations of diallyl trisulfide(DATS) on gastric cancer MGC-803 cell line in vitro. METHODS: The influence of different concentrations of DATS were examined by MTT assay, clonal formation rates and cell growth curve. RESULTS: Suppression and decrease of MGC-803 cell proliferation was found after treatment by DATS in vitro. The inhibitory rates on MGC-803 cell growth of different concentration of DATS, 4, 8, 12, 16 and 24 mg·L-1, were 26%, 46%, 65%, 76% and 89% respectively, and its half inhibitory concentration (IC50) was 8.2 mg·L-1. The clonal formation rates and clonal formation relative counts of 8, 12, 16 and 24 mg·L-1 were 32.4% and 58.7%, 24.8% and 42.5%, 19.0% and 33.5%, 8.8% and 15.1% respectively. There was significant correlation between dose and effect in all, and the cell growth culve became lower and flatter when concentration of DATS increase gradually. CONCLUSION: The effect of growth inhibition of DATS for gastric cancer MGC-803 cell in vitro is remarkable.

Effect of growth inhibition of diallyl trisulfide on gastric cancer MGC-803 cell line in vitro / 中国药理学通报

AIM To study the effects of growth inhibition of different concentrations of diallyl trisulfide(DATS) on gastric cancer MGC 803 cell line in vitro. METHODS The influence of different concentrations of DATS were examined by MTT assay, clonal formation rates and cell growth curve. RESULTS Suppression and decrease of MGC 803 cell proliferation was found after treatment by DATS in vitro. The inhibitory rates on MGC 803 cell growth of different concentration of DATS,4, 8, 12, 16 and 24 mg?L -1 , were 26%,46%,65%,76% and 89% respectively, and its half inhibitory concentration (IC 50 ) was 8 2 mg?L -1 . The clonal formation rates and clonal formation relative counts of 8, 12, 16 and 24 mg?L -1 were 32 4% and 58 7%,24 8% and 42 5%,19 0% and 33 5%?8 8% and 15 1% respectively.There was significant correlation between dose and effect in all, and the cell growth culve became lower and flatter when concentration of DATS increase gradually. CONCLUSION The effect of growth inhibition of DATS for gastric cancer MGC 803 cell in vitro is remarkable.