IL-10基因启动子多态性与皖南地区汉族人群支气管哮喘的相关性研究

目的:探讨IL-10基因启动子-1082G/A(rs1800896)、-819C/T(rs1800871)、-592C/A(rs1800872)位点多态性与安徽皖南地区汉族人群支气管哮喘的相关性。方法:采用病例-对照方法,用聚合酶链反应及直接基因测序法比较183例支气管哮喘组与151例正常人对照组之间基因型、等位基因频率的差异。结果:哮喘组IL-10基因启动子-1082G/A、-592C/A位点基因型与对照组相比有差异(P<0.05),其等位基因型频率在哮喘组和对照组间亦有差异(P<0.05)。而-819C/T位点基因型及等位基因型频率在哮喘组和对照组间均无差异(P>0.05)。结论:IL-10基因启动子rs1800896(-1082G/A)位点和rs1800872(-592C/A)位点的多态性可能与安徽皖南地区汉族哮喘相关;而rs1800871(-819C/T)位点的多态性可能与安徽皖南地区汉族哮喘无相关。     

白细胞介素10基因启动子区多态性与乙型肝炎病毒感染预后的关联研究

目的探讨中国汉族人白细胞介素10基因(interleukin10gene,IL10)启动子区单核苷酸多态性与乙型肝炎病毒(hepatitisBvirus,HBV)感染、转归的关联。方法采用聚合酶链反应-限制性片段长度多态性分析方法,检测231例HBV感染者,165例HBV感染康复者和135名正常对照者IL10基因启动子-1082G/A、-819T/C、-592A/C位点基因型。结果IL10基因启动子-1082G/A、-819T/C、-592A/C位点基因型和等位基因在HBV感染组、HBV感染康复组和正常对照组之间的分布频率比较差异无统计学意义(P>0.05),在血清HBV-DNA<1×103拷贝/mL的HBV感染者组和HBV-DNA≥1×103拷贝/mL组之间的分布频率比较差异亦无统计学意义(P>0.05);但IL10基因启动子-819T/C和-592A/C位点基因型和等位基因在HBV无症状携带组和慢性乙型肝炎组之间的分布差异有统计学意义(P<0.05),-819T/C位点TT型和-592A/C位点AA型在慢性乙型肝炎组的频率明显较高。结论汉族人IL10基因启动子多态性可能与人群对HBV易感性及感染后的病毒血症水平无显著相关性;但IL10启动子-819T/C和-592A/C位点基因多态性与HBV感染后的肝脏炎症反应有关。     

中国汉族人群白细胞介素10启动子区基因多态性的等位基因频率

目的：了解中国汉族人群中白细胞介素10（IL-10）启动子区基因多态性的等位基因频率。方法：应用聚合酶链-限制性片段长度多态性分析（PCR—RFLP）技术,对131例健康中国汉族受检样本进行IL-10592、819、-1082三个位点的基因型检测。结果：IL-10-592位点A／A、C／A、C／C基因型频率分别为42．7％、36．6％、20．7％,IL-10 -819位点T／T、T／C、C／C基因型频率分别为42．7％、36．6％、20．7%;其相关等位基因频率与意大利高加索人及英国曼彻斯特人相比有显著性差异,但与韩国人之间的差异无统计学意义。结论：不同国家人群间存在IL-10启动子区基因多态性的差异。     

白介素10的基因多态性与尖锐湿疣的相关性研究

目的探讨白介素10（IL-10）基因启动子-1082位点基因多态性与尖锐湿疣的相关性。方法采用焦磷酸测序法（Pyrosequencing）检测30例尖锐湿疣患者（观察组）和50例健康体检者（对照组）IL-10基因启动子-1082G/A位点基因型和等位基因频率;同时采用双抗体夹心ELISA法测定对照组和观察组的血清IL-10水平。结果观察组血清IL-10水平显著高于对照组（P〈0.01）。观察组IL-10基因启动子-1082 G/A位点GG基因型分布频率和G等位基因频率高于对照组（P〈0.01）。在观察组中表达GG基因型患者的血清IL-10水平显著高于表达其它基因型患者的血清IL-10水平（P〈0.05）。结论 IL-10基因多态性与尖锐湿疣易感性可能相关,IL-10基因启动子-1082 G/A位点GG基因型携带者对尖锐湿疣的易感性高。     

血清IL-10表达水平及其基因多态性与深圳地区慢性乙型肝炎的相关性研究

目的探讨深圳地区慢性乙型肝炎(HBV)患者血清中白细胞介素-10(IL-10)表达水平及其基因启动子区域-819C/T和-592A/C位点单核苷酸多态性(SNP)分布特征。方法选择无症状HBV携带者156例为携带组,慢性乙型肝炎患者59例为感染组,HBV康复者95例为康复组及正常体检人群120名为对照组,采用酶联免疫吸附法(ELISA)检测血清中IL-10表达水平,聚合酶链反应-限制性片段长度多态性(polymerasechainreaction-restrictionfragmentlength polymorphisms,PCR-RFLP)法及贝克曼SNP分析仪检测IL-10基因启动子区域-592A/C和-819C/T位点基因多态性。结果携带组、感染组和康复组血清中IL-10表达水平分别为(10.25±4.71)pg/mL、(18.56±6.92)pg/mL和(7.14±3.60)pg/mL,均高于对照组(4.74±0.29)pg/mL,差异均有统计学意义(t=2.923～11.065,P0.05);HBV各组IL-10基因启动子区域-819 TT基因型频率最高,其中康复组高于其它两组,差异有统计学意义(χ~2=2.527～3.916,P0.05),而对照组CT频率最高,明显高于HBV各组,差异有统计学意义(χ~2=3.647～5.078,P0.05),HBV各组IL-10基因启动子区域-819T等位基因频率最高,其中康复组明显高于其它组,差异有统计学意义(χ~2=2.093～3.728,P0.05),而对照组C和T等位基因检出率之间差异无统计学意义(χ~2=1.062,P0.05);HBV各组IL-10基因启动子区域-592CC基因型频率均高于对照组,差异均有统计学意义(χ~2=3.281～7.915,P0.05),其中感染组最高;感染组IL-10基因启动子区域-592 C等位基因频率高于其它各组,差异有统计学意义(χ~2=2.409～3.825,P0.05),而康复组A等位基因频率高于其它组,差异有统计学意义(χ~2=2.195～3.062,P0.05)。结论深圳地区慢性乙肝患者血清中IL-10表达水平最高。IL-10基因启动子区域-819C/T和-592A/C基因存在多态性,具有区域性,-819TT基因型和T等位基因可能是HBV感染的保护性因素,而-592CC基因型和C等位基因可能是本区HBV易感基因,且与IL-10表达水平有关。     

贵州苗族、侗族、布依族人群白介素10基因-592与-819位点的多态性研究

目的 研究中国贵州世居少数民族苗族、侗族与布依族人群中白介素10 (IL-10)基因启动子区-592与-819位点的多态性,为进一步研究其与疾病的相关性提供依据.方法 对上述人群采用TaqMan-MGB探针实时荧光聚合酶链反应SNP分型技术分析IL-10-592与IL-10-819位点多态性.结果 IL-10-819基因型频率在贵州苗族与侗族、苗族与布依族中的分布差异有统计学意义(P＜0.05),而在侗族与布依族之间分布差异无统计学意义(P＞0.05),IL-10-819(C/T)位点在贵州苗族群体中具有较高的突变率.IL-10-592基因型频率在贵州苗族与侗族、苗族与布依族之间分布差异有统计学意义(P＜0.05),在贵州侗族与布依族之间分布差异无统计学意义(P＞0.05),贵州苗族群体中IL-10-592位点T等位基因频率远高于侗族与布依族群体.贵州苗族、侗族、布依族IL-10-592位点与IL-10-819位点的多态分布与希腊及巴西人群分布差异无统计学意义(P＞0.05),而与中国广州及台湾汉族人、韩国人、加拿大人群的分布差异有统计学意义(P＜0.05),IL-10-592 A与IL-10-819 T突变频率显著低于中国广州及台湾汉族人和韩国人群的突变频率,但又显著高于加拿大人群的IL-10-592 A与IL-10-819 T的突变频率.结论 IL-10-819与IL-10-592多态性位点在贵州世居少数民族苗族、侗族与布依族人群中有着不同的分布,而IL-10-819与IL-10-592位点在不同种族、地域的群体中分布亦有显著的差异.     

IL-10基因多态性与湖北地区汉族人群胃十二指肠疾病的相关性研究

义(P>0.05).IL-10-819位点与IL-10-592分布频率一致.(3)胃癌组IL-10-1082 AG+GG基因型并Hp阳性分布频率与其余3组相比差异有统计学意义(P<0.05).结论 (1)IL-10-1082AG+GG基因型与湖北地区汉族人群胃癌发生相关,该基因型与其他胃十二指肠疾病无相关性.(2)胃癌患者中IL-10-1082 AG+GG基因型与Hp感染相关.     

温州地区汉族正常人群CYP1A2基因多态性分布特征

目的检测CYP1A2基因多态性在温州地区汉族正常人群的分布特征。方法采用聚合酶链反应（PCR）产物直接测序法检测108例随机血液样本DNA中CYP1A2基因序列单核苷酸多态性位点（SNP）的分布。对检测到的3个多态位点2159G〉A、3613T〉C、5347C〉T,进一步采用PCR技术分析472例正常人位点的基因型频率和等位基因频率。结果 （1）2159 G〉A位点：G和A等位基因的频率分别为93.8%,6.2%,GG、GA、AA基因型频率分别为87.7%、12.1%、0.2%（χ2=0.325,P〉0.05）;（2）3613 T〉C位点：T和C等位基因的频率分别为97.9%、2.3%,TT、TC、CC基因型频率分别为95.3%、4.4%、0.3%（χ2=0.298,P〉0.05）;（3）5347 C〉T位点：C和T等位基因的频率分别为87.9%、12.1%。CC、CT、TT基因型分布频率分别为77.8%、20.3%、1.9%（χ2=0.742,P〉0.05）;（4）2159 G〉A、5347 C〉T组成的单倍型频率为3.2%。结论温州地区汉族正常人群CYP1A2基因存在2159G〉A、3613T〉C、5347C〉T多态位点。     

IL-10基因多态性与特应性皮炎发生的相关性

目的 研究白细胞介素-10（IL-10）基因启动子区域的单核苷酸多态性与特应性皮炎发生的相关性。方法 门诊特应性皮炎患儿174名和健康儿童130名,利用Taqman方法分析IL-10基因启动子区域 -1082（G/A）, -819（C/T）, -592(C/A) 单核苷酸多态性和单核苷酸组合成的单倍型和基因型。分析特定基因型保留和血液中嗜酸性粒细胞总数或血浆中IgE浓度之间的关联性。结果 健康组儿童ACC单倍型频率显著高于特应性皮炎儿童（p﹤0.05）。而血液中嗜酸性粒细胞总数和血浆中IgE浓度,ATA/ATA基因型的儿童显著高于ATA/ACC基因型儿童（p﹤0.05）。结论 IL-10基因启动子区域的单核苷酸多态性与特应性皮炎发生有关。     

肺表面活性物质蛋白B基因多态性与新生儿呼吸窘迫综合征易感性的研究

目的探讨肺泡表面活性物质蛋白B（SPB）基因多态性与新生儿呼吸窘迫综合征易感性的关系。方法收集华中科技大学同济医学院附属同济医院的新生儿呼吸窘迫综合征（NRDS）诊断病例为病例组,并按1∶2比例收集胎龄和出生体重相匹配的无明显感染症状早产儿为对照组。应用聚合酶链反应-限制性片段长度多态（PCR-RFLP）分析技术及基因测序技术检测SPB-18A/C及SPB1580C/T多态性,观察两组间基因型频率和等位基因频率的差异。并复习文献比较本研究汉族与其他种族人群等位基因频率的差异。结果 2008至2010年NRDS组91例,对照组182名进入分析。①SPB-18A/C基因在NRDS组AA,AC,CC基因型频率分别为11.0%、40.7%和48.4%,对照组分别为6.6%、31.3%和62.1%;两组基因型频率差异无统计学意义（P〉0.05）;NRDS组A等位基因频率显著高于对照组（31.3%vs22.3%）。②SPB1580C/T基因在NRDS组TT、TC和CC基因型频率分别为5.5%、63.7%和45.1%,对照组分别为30.8%、6.6%和48.4%;两组基因型频率差异无统计学意义（P〉0.05）;NRDS组C等位基因频率显著高于对照组（79.1%vs70.9%）。③本研究汉族人、美国人、巴西人和丹麦人SPB1580等位基因C频率分别为79%、35%、41%和46%,差异有统计学意义（P〈0.05）,与日本人群等位基因C频率（72%）差异无统计学意义（P〉0.05）;本研究汉族人、巴西人、美国人和丹麦人SPB-18等位基因A频率分别为31%、58%、57%和61%,差异有统计学意义（P〈0.05）。结论本研究汉族人群SPB-18A/C及SPB1580C/T基因多态性是NRDS的危险因素。不同种族人群SPB1580C/T和SPB-18A/C基因多态性分布存在明显差异。     

Association of -592C/A, -819C/T and -1082A/G interleukin-10 promoter polymorphisms with idiopathic recurrent spontaneous abortion

Increasing evidence supports a role for altered T helper 1 (Th1)-Th2 cytokine balance in idiopathic recurrent spontaneous abortion (RSA). The aim of this study was to investigate the association of the interleukin 10 (IL-10) promoter polymorphisms -592C/A, -819C/T and -1082A/G with RSA. Women (n = 350) with at least three consecutive spontaneous abortions (RSA cases) and 200 control women with at least two successful pregnancies were included. The frequency of the -819T allele [P = 0.05, odds ratio (OR) = 1.51], but not other single-nucleotide polymorphisms (SNPs), was higher among RSA patients. Complete linkage disequilibrium (LD) was seen between -592C and -819C and -1082G alleles, as well as between -592A and -819T and between -819C and -1082G alleles only among patients. Although the genotype frequencies (except for -819C/C) of the three polymorphisms were comparable between patients and controls, higher frequency of -592A/-819T/-1082A haplotype (OR = 4.01, 95% CI = 1.83-7.95) was seen in cases versus controls. Regression analysis indicated that, after adjusting for potential variables, -592C/A (OR = 3.32, 95% CI = 1.76-6.27) and -819C/T (OR = 5.06, 95% CI = 2.59-9.91) were associated with exclusively early but not exclusively late RSA, where negative association for both was noted. This supports the notion of involvement of IL-10-592C/A and -819C/T polymorphisms as inherited risk factors of idiopathic RSA.     

Role of IL-10 gene polymorphisms on the susceptibility for esophageal cancer and its association with environmental factors

We conducted a hospital-based case-control study to investigate the association of three common SNPs (-1082G/A rs1800896, -819T/C rs1800871, and -592A/C rs1800872) of IL-10 gene polymorphisms with the susceptibility to esophageal cancer in a Chinese population. 246 patients with pathologically proven esophageal cancer and 492 healthy control subjects were collected in our study. Genotyping of IL-10-1082G/A rs1800896, -819T/C rs1800871, and -592A/C rs1800872 was performed using the Sequenom MassARRAY platform (Sequenom; San Diego, CA). Unconditional logistic regression analyses showed that subjects carrying the AA genotype and GA+AA genotype of IL-10-1082G/A rs1800896 were associated with an increased risk of esophageal cancer, and the adjusted ORs (95% CI) were 2.19 (1.31-3.64) and 1.44 (1.05-1.99), respectively. However, we did not find significant association of IL-10-819T/C rs1800871 and -592A/C rs1800872 with the development of esophageal cancer. By stratification analysis, we found that IL-10-1082G/A rs1800896 polymorphism has no significant association with smoking, drinking and family history of cancer in the first relatives in esophageal cancer risk (P>0.05). In conclusion, IL-10-1082G/A rs1800896 genetic variation may be employed as candidate biomarkers for the prediction of susceptibility in esophageal cancer.     

Association between Interleukin-10 gene polymorphisms and risk of early-onset preeclampsia

We conducted a case-control study to investigate the role of IL-10 -1082A/G (rs1800896), -819T/C (rs1800871), and -592A/C (rs1800872) polymorphisms in the development of early-onset preeclampsia. Polymerase chain reaction restriction fragment length polymorphism (PCR-RFLP) assay was applied to assess the polymorphisms of IL-10 -1082A/G (rs1800896), -819T/C (rs1800871), and -592A/C (rs1800872). The genotype distributions of IL-10 -1082A/G (rs1800896), -819T/C (rs1800871), and -592A/C (rs1800872) confirmed with HWE in the controls, and the P value for HWE was 0.41, 0.38 and 0.26, respectively. The results of the multivariate logistic regression analysis revealed that the association of individuals expressing the CC genotype and AC+CC of IL-10 -592A/C (rs1800872) with a significantly increased risk of early-onset preeclampsia in co-dominant and dominant models, compared to the AA genotype; the OR (95% CI) for these individuals was determined to be 2.09 (1.12-3.90) and 1.66 (1.03-2.71), respectively. In the recessive model, we found that CC genotype of IL-10 -592A/C (rs1800872) was associated with the increased risk of early-onset preeclampsia when compared with AA+AC genotype (OR = 1.67; 95% CI = 1.01-2.92). In conclusion, our study has indicated that IL-10 -592A/C (rs1800872) polymorphism was associated with an increased risk of early-onset preeclampsia in a Chinese population.     

Investigation on the association between inerleukin-10 -592C/A, 819C/T and -1082A/G gene polymorphisms and development of diabetic nephrophathy

We conducted a case-control study to investigate the association between interleukin (IL)-10-592C/A, -819C/T and -1082A/G polymorphisms and susceptibility to diabetic nephropathy. A hospital-based case-control study was taken in our study. A total of 172 patients with proven type 2 diabetes mellitus and 344 controls were recruited from the First Affiliated Hospital of Xinxiang Medical University between March 2012 and October 2014. Genotyping of IL-10 -592C/A, -819C/T and -1082A/G polymorphisms was done by done by PCR-RFLP methods. By the χ² test, the distributions of the GG, GA and AA genotypes in IL-10 -1082A/G were significantly different between patients with diabetic nephropathy and control subjects (χ² = 8.09, P = 0.02). By conditional logistic regression analysis, we found that the AA genotype of IL-10 -1082A/G was associated with an elevated risk of diabetic nephropathy compared to the GG genotype in codominant model, and the adjusted OR (95% CI) was 2.38 (1.23-4.57). In dominant model, the GA+AA genotype was associated with a significantly increased risk of diabetic nephropathy compared to the GG genotype in dominant model (OR = 1.47, 95% CI = 1.05-2.16). In recessive model, the AA genotype could influence the susceptibility to diabetic nephropathy when compared with the GG+GA in recessive model (OR = 2.08, 95% CI = 1.12-3.85). In conclusion, we suggested that IL-10 -1082A/G gene polymorphism was correlated with development of diabetic nephropathy, but no association was observed between IL-10 -819T/C and -592A/C and risk of diabetic nephropathy.     

Interleukin-10 gene polymorphisms influence the clinical course of non-Hodgkin's lymphoma

The pathophysiology of Non-Hodgkin's lymphoma (NHL) is still unknown and clinical course is very unpredictable. Many cytokines, including interleukin-10 (IL-10), play a role in the perpetuation of this disease. The IL-10-producing capability has been found to be influenced by the IL-10 gene promoter polymorphisms. The aim of the present study was to assess whether any of IL-10 (-1082 A/G, -819 C/T and -592 A/C) genotypes prevails in Polish patients with NHL and whether IL-10 promoter polymorphisms may be associated with less or more favourable course of the disease. IL-10 gene promoter polymorphisms were assessed in 105 individuals, including 55 NHL patients and 50 ethically matched controls. The frequency of the IL-10 low-producing -1082 AA homozygous genotype was significantly higher in patients with aggressive NHL as compared with patients with indolent forms of the disease (0.57 vs 0.28, P < 0.05) and controls [0.57 vs 0.32, odds ratio (OR) = 2.69, P < 0.05]. Also, the presence of the ACC genotype was more frequently detected among patients with more aggressive disease than in those with indolent forms (0.74 vs 0.47, P < 0.05) and healthy controls (0.74 vs 0.42, OR = 3.69, P < 0.05). In multivariate analyses, the AA homozygosity (OR = 6.33, P < 0.05) and ACC genotype (OR = 3.57, P = 0.05) appeared as independent risk factors of more aggressive manifestation of NHL in addition to the elevated lactate dehydrogenase 480 level. Although no direct association was found between IL-10 promoter polymorphisms and NHL, IL-10 (-1082) AA homozygosity and IL-10 ACC genotype were found to be associated with unfavourable prognosis in patients with NHL.     

Interleukin-10 gene promoter polymorphisms and the risk of nasopharyngeal carcinoma

Genetic factors are known to be important in the development of nasopharyngeal carcinoma (NPC). Interleukin-10 (IL-10) is an immunosuppressive cytokine which may facilitate development of cancer by supporting tumor escape from the immune response. Interindividual variations in IL-10 production were genetically contributed to polymorphisms within IL-10 promoter region. The aim of this study was to determine whether single nucleotide polymorphisms (SNPs) at positions -1082 (A/G), -819 (T/C) and -592 (A/C) in the IL-10 gene promoter were involved in predisposing an individual to NPC. One hundred and ninety-eight patients with NPC and 210 age- and sex-matched controls, genotypes were determined using polymerase chain reaction-restriction fragment length polymorphism. There were significantly differences in the genotype and allele distribution of -1082 A/G polymorphism of the IL-10 gene among cases and controls. The -1082 AG and GG genotypes were associated with a significantly increased risk of NPC as compared with the -1082 AA genotypes. Haplotype analysis showed that the homozygosity of the GCC haplotype (defined by SNPs at positions -1082, -819 and -592) of IL-10 gene conveys the highest risk for NPC compared with the homozygosity for the ATA haplotype. This study shows for the first time an association between IL-10 gene promoter -1082 A/G polymorphism and its haplotype may contribute to genetic susceptibility to NPC in a Chinese population.     

Th2/Th3 cytokine genotypes are associated with pregnancy loss

Cytokines are critical immunoregulatory molecules, responsible for determining the nature of an immune response. It has been proposed that Th2/Th3 immune reactions support normal pregnancy, while Th1 immunity is considered detrimental to the fetus. Since cytokine production is partly under genetic control, it is possible that women suffering from a high incidence of abortions are genetically predisposed to mount a type of immune response inappropriate for pregnancy maintenance. This study investigated the frequencies of cytokine gene polymorphisms in abortion-prone women and women with successful pregnancies. We investigated the role of Th1/Th2/Th3 cytokine gene polymorphisms, such as TGF-beta1 codon 10 (TGFbetac10; C to T), TGF-beta1 codon 25 (TGFbetac25; G to C), TNFalpha promoter-308 (G to A), IL-6 promoter-174 (G to C), IL-10 promoter-1082 (G to A), IL-10 promoter-819 (C to T), IL-10 promoter-592 (C to A), and IFNgamma intron 1 +874 (A to T) in abortion-prone female patients. Our results support the importance of Th2/Th3 immune responses in pregnancy loss, and suggest that an individual's immunogenetic profile indicative of imbalances in Th2/Th3 cytokines is associated with pregnancy loss. Our results suggest that abortive events are determined by genetic factors, reflected in the female patient's immunogenetic profile.     

Interleukin-10 -1082A/G polymorphism is associated with the development of acute pancreatitis in a Chinese population

We conducted a case-control study to investigate the association between IL-10 gene polymorphism (-1082A/G, -819T/C, and -592A/C) and risk of acute pancreatitis in a Chinese population. A total of 240 patients with proven acute pancreatitis and 240 control subjects were collected between May 2012 and January 2015. Genotyping of the IL-10-1082A/G, -819T/C, and -592A/C gene polymorphisms was conducted by using polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) method. By univariate logistic regression analysis, patients with acute pancreatitis were more likely to have higher BMI (OR=2.12, 95% CI=1.45-3.12; P<0.001) and have a habit of alcohol drinking (OR=2.01, 95% CI=1.37-2.95; P<0.001). There were significant differences in the genotype distributions of IL-10-1082A/G between patients with acute pancreatitis and control subjects (χ²=9.97, P=0.007). By multiple logistic regression analysis, we found that individuals with the GG genotype of IL-10-1082A/G were associated with an increased risk of acute pancreatitis when compared with the AA genotype (OR=2.32, 95% CI=1.20-4.59; P=0.007). In dominant and recessive models, the IL-10-1082A/G gene polymorphism was significantly correlated with an elevated risk of acute pancreatitis, and the adjusted Ors (95% CI) were 1.50 (1.03-2.20) and 1.99 (1.06-3.79), respectively. However, no significant different was found between IL-10-819T/C and -592A/C gene polymorphisms and susceptibility to acute pancreatitis. In conclusion, we suggest that IL-10-1082A/G gene polymorphisms contribute to the development of acute pancreatitis in codominant, dominant and recessive models.