scholarly journals Association between Genetic Polymorphisms of MIR3142HG and the Risk of Steroid-Induced Osteonecrosis of the Femoral Head in the Population of Northern China

2021 ◽  
pp. 1-9
Author(s):  
Tiantian Wang ◽  
Huiqiang Wu ◽  
Menghu Sun ◽  
Tingting Liu ◽  
Feimeng An ◽  
...  
Keyword(s):  
Femoral Head ◽  
Protective Factor ◽  
Genetic Model ◽  
Additive Model ◽  
Northern China ◽  
Dominant Model ◽  
Nucleotide Polymorphisms ◽  
Chinese Han ◽  
Aseptic Necrosis ◽  
Increased Risk

<b><i>Background:</i></b> Steroid-induced osteonecrosis of the femoral head (ONFH) is aseptic necrosis of the femoral head caused by glucocorticoid use. Once necrotic femoral head necrosis occurs, it irreversibly affects the quality of life seriously. Studies have shown that the susceptibility to steroid-induced ONFH is likely to be related to the variation of miRNA-coding genes. Therefore, this study aimed was to investigate the effect of <i>MIR3142HG</i> on steroid-induced ONFH. <b><i>Methods:</i></b> Agena MassARRAY was used to genotype <i>MIR3142HG</i> gene rs1582417, rs2431689, rs7727155, and rs17057846 in 199 patients and 725 healthy people. A genetic model and haplotype analysis were used to evaluate the relationship between the <i>MIR3142HG</i> polymorphism and the risk of steroid-induced ONFH. The odds ratio and 95% confidence intervals were obtained through logistic regression to assess the influence of gene polymorphisms on the occurrence of steroid-induced ONFH. <b><i>Results:</i></b> The consequences show that rs7727115 is a protective factor, it could reduce the risk of steroid-induced ONFH, and rs1582417 could increase the risk of steroid-induced ONFH. In the genetic model, rs1582417 was associated with increased risk of alcohol-induced ONFH in dominant model and log-additive model. rs7727115 showed a decreased risk in codominant model, dominant model, and log-additive model. In addition, rs2431689 is related to HDL-C (<i>p</i> = 0.012) and ApoA1 (<i>p</i> = 0.010) levels, and rs17057846 (<i>p</i> = 0.024) is related to ApoB levels. Thelinkage analysis indicated 3 single-nucleotide polymorphisms (rs2431689, rs7727115, and rs17057846) in <i>MIR3142HG</i> with significant chain imbalance. In addition, haplotype “GGG” of <i>MIR3142HG</i> was found out and is harmful for steroid-induced ONFH. <b><i>Conclusion:</i></b> Our results first confirm that the genetic polymorphism of <i>MIR3142HG</i> is associated with steroid-induced ONFH susceptibility in Chinese Han population.

scholarly journals Association Between Genetic Polymorphisms of MIR3142HG and the Risk of Steroid-induced Osteonecrosis of the Femoral Head in the Population of Northern China

2020 ◽  
Author(s):  
Tiantian Wang ◽  
Huiqiang Wu ◽  
Tingting Liu ◽  
Mneghu Sun ◽  
Feimeng An ◽  
...  
Keyword(s):  
Femoral Head ◽  
Protective Factor ◽  
Genetic Model ◽  
Northern China ◽  
Chinese Han ◽  
Aseptic Necrosis ◽  
Chain Imbalance ◽  
Stratified Analysis ◽  
The Relationship

Abstract Background: Steroid-induced osteonecrosis of the femoral head (ONFH) is aseptic necrosis of the femoral head caused by glucocorticoid use. Once necrotic femoral head necrosis occurs, it irreversibly affects the quality of life seriously. Studies have shown that the susceptibility to steroid-induced ONFH is likely to be related to the variation of miRNA coding genes. Therefore, this study aimed was to investigate the effect of MIR3142HG on steroid-induced ONFH.Methods: Agena MassARRAY was used to genotype MIR3142HG gene rs1582417, rs2431689, rs7727155 and rs17057846 in 199 patients and 506 healthy people. A genetic model and haplotype analysis were used to evaluate the relationship between the MIR3142HG polymorphism and the risk of steroid-induced ONFH. The odds ratio (OR) and 95% confidence intervals (CIs) were obtained through logistic regression to assess the influence of gene polymorphisms on the occurrence of steroid-induced ONFH.Results: The consequences show that rs7727115(OR=0.76,p=0.036) is a protective factor, it could reduce the risk of steroid-induced ONFH, rs1582417(OR=1.28, p=0.041) could increase the risk of steroid-induced ONFH. Stratified analysis , according to each clinical index shows that MIR3142HG TC-CC genotype facilitated the risk of steroid-induced ONFH in male ( p<0.05). In addition, rs2431689 is related to HDL-C(p=0.012) and ApoA1 (p=0.010) levels, and rs17057846 (p=0.024) is related to ApoB levels.The linkage analysis indicated that three SNPs (rs2431689, rs7727115 and rs17057846) in MIR3142HG with significant chain imbalance. In addition, haplotype “GGG” of MIR3142HG was found out is harmful for steroid-induced ONFH.Conclusion: Our results firstly confirm that the genetic polymorphism of MIR3142HG is associated with steroid-induced ONFH susceptibility in Chinese Han population.

scholarly journals Association of GTF2I, NFKB1, and TYK2 Regional Polymorphisms With Systemic Sclerosis in a Chinese Han Population

2021 ◽  
Vol 12 ◽  
Author(s):  
Chenxi Liu ◽  
Songxin Yan ◽  
Haizhen Chen ◽  
Ziyan Wu ◽  
Liubing Li ◽  
...  
Keyword(s):  
Systemic Sclerosis ◽  
Genetic Model ◽  
Additive Model ◽  
Recessive Model ◽  
Chinese Han Population ◽  
Nucleotide Polymorphisms ◽  
Chinese Han ◽  
Association Analyses ◽  
Han Population ◽  
Increased Risk

ObjectivesSystemic sclerosis (SSc) is an uncommon autoimmune disease that varies with ethnicity. Single nucleotide polymorphisms (SNPs) in the GTFSI, NFKB1, and TYK2 genes have been reported to be associated with SSc in other populations and in individuals with various autoimmune diseases. This study aimed to investigate the association between these SNPs and susceptibility to SSc in a Chinese Han population.MethodA case-control study was performed in 343 patients with SSc and 694 ethnically matched healthy controls. SNPs in GTF2I, NFKB1, and TYK2 were genotyped using a Sequenom MassArray iPLEX system. Association analyses were performed using PLINK v1.90 software.ResultOur study demonstrated that the GTF2I rs117026326 T allele and the GTF2I rs73366469 C allele were strongly associated with patients with SSc (P = 6.97E-10 and P = 1.33E-08, respectively). Patients carrying the GTF2I rs117026326 TT genotype and the GTF2I rs73366469 CC genotype had a strongly increased risk of SSc (P = 6.25E-09 and P = 1.67E-08, respectively), and those carrying the NFKB1 rs1599961 AA genotype had a suggestively significantly increased risk of SSc (P = 0.014). Moreover, rs117026326 and rs73366469 were associated with SSc in different genetic models (additive model, dominant model, and recessive model) (P &lt; 0.05) whereas rs1599961 was associated with SSc in the dominant genetic model but not in the addictive and recessive models (P = 0.0026). TYK2 rs2304256 was not significantly associated with SSc in this study.ConclusionGTF2I rs117026326 and rs73366469 SNPs were strongly associated with SSc in this Chinese Han population. NFKB1 rs1599961 showed a suggestive association with SSc, and no significant association was found between TYK2 rs2304256 and SSc in this Chinese Han population.

scholarly journals Association between the ACYP2 Polymorphisms and IgAN Risk in the Chinese Han Population

2019 ◽  
Vol 44 (4) ◽  
pp. 810-822
Author(s):  
Gang Jin ◽  
Yan Liang ◽  
Xiaohui Yan ◽  
Linping Zhang ◽  
Zhenjiang Li ◽  
...  
Keyword(s):  
Association Studies ◽  
Immunoglobulin A ◽  
Additive Model ◽  
Recessive Model ◽  
Chinese Han Population ◽  
Nucleotide Polymorphisms ◽  
Bonferroni Correction ◽  
Chinese Han ◽  
Han Population ◽  
Increased Risk

Background/Aims: The association between ACYP2(Acylphosphatase 2) polymorphisms and immunoglobulin A nephropathy (IgAN) risk in the Chinese Han population remains unclear. We aimed to evaluate the association between ACYP2 polymorphisms and IgAN risk by performing a case-control study. Methods: Eleven ACYP2 single nucleotide polymorphisms (SNPs) from 416 IgAN patients and 495 healthy controls were genotyped using the Sequenom MassARRAY platform. Odds ratio (OR) and 95% confidence interval (CI) were calculated to evaluate the association of ACYP2 polymorphisms with IgAN risk. Results: We observed that rs843720 was significantly associated with an increased risk of IgAN (allele G: OR = 1.23, 95% CI: 1.01–1.49, p = 0.036; dominant model: OR = 1.55, 95% CI: 1.01–2.37, p =0.044; log-additive model: OR = 1.43, 95% CI: 1.04–1.95, p = 0.026) before Bonferroni correction. The SNP rs12615793 was also significantly associated with an increased IgAN risk in the recessive model (OR = 3.33, 95% CI: 1.05–10.51, p = 0.042) before Bonferroni correction. Conclusion: These findings suggested that polymorphisms (rs843720 and rs12615793) of ACYP2 may be pivotal in the development of IgAN. However, more functional and association studies with larger sample sizes should be performed to further validate our results in the future.

scholarly journals Association of MIR17HG and MIR155HG gene variants with steroid-induced osteonecrosis of the femoral head in the population of northern China

2021 ◽  
Author(s):  
Tingting Liu ◽  
Yuju Cao ◽  
Changxu Han ◽  
Feimeng An ◽  
Tiantian Wang ◽  
...  
Keyword(s):  
Femoral Head ◽  
Gene Mutations ◽  
Density Lipoprotein ◽  
Northern China ◽  
Recessive Model ◽  
Control Group ◽  
Nucleotide Polymorphisms ◽  
Clinical Indicators ◽  
Increased Risk ◽  
The Relationship

Abstract IntroductionSteroid-induced osteonecrosis of the femoral head (ONFH ) is a disease of bone metabolism, and genetic factors are generally considered to play an important role. The purpose of this study was to investigate the relationship between single nucleotide polymorphisms (SNPs) in MIR17HG and MIR155HG and the risk of steroid-induced ONFH in the population of northern China.MethodsA total of 199 steroid-induced ONFH patients and 506 healthy controls were recruited for the study. Four SNPs of MIR17HG and seven SNPs of MIR155HG were genotyped by Sequenom MassARRAY. ORs and 95% CIs were used to evaluate the relationship between these SNPs and steroid-induced ONFH.ResultsIn the codominant model, patients with the MIR17HG SNPs(rs7318578) AA genotype had an increased risk of steroid-induced ONFH (OR = 1.79, p = 0.039), in the recessive model, patients with the MIR17HG SNP(rs7318578) AA genotype had an increased risk of steroid-induced ONFH (OR = 1.78, p = 0.032). Stratified analysis showed that a MIR17HG SNP (rs7318578) and MIR155HG SNPs(rs77218221, rs11911469, rs34904192 and rs4143370) were closely related to different unornamented phenotypes of steroid-induced ONFH. Analysis of the clinical indicators revealed significant differences in high-density lipoprotein (HDL-C) levels between the ONFH group and the control group (p = 0.005). MIR17HG SNP(rs75267932) and MIR155HG SNPs(rs77699734, rs1893650 and rs34904192) were correlated with different lipid indexes.ConclusionOur results confirm that MIR17HG and MIR155HG gene mutations are associated with steroid-induced ONFH susceptibility in the population of northern China, providing new evidence for the early detection and prevention of ONFH.

scholarly journals MMP2andMMP10Polymorphisms Are Related to Steroid-Induced Osteonecrosis of the Femoral Head among Chinese Han Population

2019 ◽  
Vol 2019 ◽  
pp. 1-10 ◽  
Author(s):  
Ye Tian ◽  
Feimeng An ◽  
Jiaqi Wang ◽  
Chang Liu ◽  
Huiqiang Wu ◽  
...  
Keyword(s):  
Femoral Head ◽  
Genetic Model ◽  
Model Analysis ◽  
Chinese Han Population ◽  
Chinese Han ◽  
Han Population ◽  
Susceptibility Factors ◽  
Increased Risk ◽  
Chi Squared

Background. Steroid-induced osteonecrosis of the femoral head is a relatively serious condition which seriously reduces patient quality of life. However, the pathogenesis of steroid-induced ONFH is still unclear. In recent years, more scholars have found that the pathogenesis of steroid-induced ONFH is related to susceptibility factors such asMMPs/TIMPssystem. The main purpose of this study is to investigate the correlation betweenMMP2andMMP10gene polymorphisms and steroid-induced ONFH in Chinese Han population.Methods. Six SNPs inMMP2and two SNPs inMMP10were genotyped using Agena MassARRAY RS1000 system from 286 patients of steroid-induced ONFH and in 309 healthy controls. The association betweenMMP2andMMP10polymorphisms and steroid-induced ONFH risk were estimated by the Chi-squared test, genetic model analysis, haplotype analysis, and stratification analysis. The relative risk was estimated by odd ratios (ORs) and 95% confidence intervals (CIs).Result. We found that the minor TG allele of rs470154 inMMP10was associated with an increased risk of steroid-induced ONFH (OR = 1.45, 95% CI, 1.03 – 2.05,p= 0.032). In the genetic model analysis, we found that rs2241146 inMMP2gene and rs470154 inMMP10gene showed a statistically significant association with increased risk of steroid-induced ONFH. The six SNPs (rs470154, rs243866, rs243864, rs865094, rs11646643, and rs2241146) showed a statistically significant association with different clinical phenotypes.Conclusion. Our results verify that genetic polymorphisms ofMMP2andMMP10contribute to steroid-induced ONFH susceptibility in the population of Chinese Han population, and our study provides new insights into the role thatMMP2andMMP10plays in the mechanism of ONFH.

scholarly journals Association of TIMP4 gene variants with steroid-induced osteonecrosis of the femoral head in the population of northern China

PeerJ ◽  
2019 ◽  
Vol 7 ◽  
pp. e6270
Author(s):  
Jiaqi Wang ◽  
Feimeng An ◽  
Yuju Cao ◽  
Hongyan Gao ◽  
Mingqi Sun ◽  
...  
Keyword(s):  
Femoral Head ◽  
Additive Model ◽  
Northern China ◽  
Additive Models ◽  
Gene Variants ◽  
Nucleotide Polymorphisms ◽  
Single Nucleotide ◽  
Link Type ◽  
Intravascular Thrombosis ◽  
Normal Individuals

BackgroundIn clinical treatment, the use of steroid hormones is an important etiological factor of non-traumatic osteonecrosis of the femoral head (ONFH) risk. As an endogenous inhibitor of matrix metalloproteinases (MMPs) in the extracellular matrix, the expression of tissue inhibitors of metalloprotease-4 (TIMP4) plays an essential role in cartilage and bone tissue damage and remodeling, vasculitis formation, intravascular thrombosis, and lipid metabolism.MethodsThis study aimed to detect the association between TIMP4 polymorphism and steroid-induced ONFH. We genotyped seven single-nucleotide polymorphisms (SNPs) in TIMP4 genes and analyzed the association with steroid-induced ONFH from 286 steroid-induced ONFH patients and 309 normal individuals.ResultsWe performed allelic model analysis and found that the minor alleles of five SNPs (rs99365,rs308952,rs3817004,rs2279750, andrs3755724) were associated with decreased steroid-induced ONFH (p = 0.02,p = 0.03,p = 0.04,p = 0.01,p = 0.04, respectively).rs2279750showed a significant association with decreased risk of steroid-induced ONFH in the Dominant and Log-additive models (p = 0.042,p = 0.028, respectively), andrs9935,rs30892, andrs3817004were associated with decreased risk in the Log-additive model (p = 0.038,p = 0.044,p = 0.042, respectively). In further stratification analysis, TIMP4 gene variants showed a significant association with steroid-induced ONFH in gender under the genotypes. Haplotype analysis also revealed that “TCAGAC” and “CCGGAA” sequences have protective effect on steroid-induced ONFH.ConclusionOur results indicate that five TIMP4 SNPs (rs99365,rs308952,rs3817004rs2279750, andrs3755724) are significantly associated with decreased risk of steroid-induced ONFH in the population of northern China.

scholarly journals MIR17HG polymorphism (rs7318578) is associated with liver cancer risk in the Chinese Han population

2020 ◽  
Vol 40 (8) ◽  
Author(s):  
Xu Chao ◽  
Xuesong Feng ◽  
Hailong Shi ◽  
Yuewen Wang ◽  
Lanlan Wang ◽  
...  
Keyword(s):  
Liver Cancer ◽  
Cancer Risk ◽  
Cancer Susceptibility ◽  
Additive Model ◽  
Chinese Han Population ◽  
Nucleotide Polymorphisms ◽  
Chinese Han ◽  
Han Population ◽  
Functional Studies ◽  
Increased Risk

Abstract Numerous evidence has revealed that single-nucleotide polymorphisms (SNPs) are associated with liver cancer risk. To assess whether the MIR17HG polymorphisms are associated with the liver cancer risk in the Chinese Han population, we performed a case–control (432 liver cancer patients and 430 healthy controls) study. Genotyping of four variants of MIR17HG was performed with the Agena MassARRAY platform. We used χ2 test to compare the distribution of SNPs allele and genotypes frequencies of cases and controls. Odds ratios (ORs) and 95% confidence intervals (CIs) were calculated by logistic regression analysis to evaluate the association under genetic models. The results indicated that the rs7318578 was significantly associated with increased the risk of liver cancer in the allele (OR = 1.45, 95% CI: 1.18–1.77, P=3.04E-04), recessive (OR = 3.69, 95% CI: 2.45–5.56, P=4.52E-10) and additive model (OR = 1.35, 95% CI: 1.13–1.62, P=0.001). Moreover, we found that individuals with the genotype CC of rs7318578 presented with an increased risk of liver cancer (OR = 3.03, 95% CI: 1.98–4.65, P=3.83E-07); however, the CA genotype of rs7318578 significantly decreased the risk of liver cancer (OR = 0.61, 95% CI: 0.45–0.83, P=0.001, compared with those with the AA genotype. Our findings indicated that MIR17HG polymorphism (rs7318578) contributes to liver cancer susceptibility to the Chinese Han population. Further studies with larger samples are required to confirm the results, as well as functional studies to determine the role of this SNP in miRNA expression or molecular pathways.

SYNJ2 Variant Rs9365723 is Associated with Colorectal Cancer Risk in Chinese Han Population

2016 ◽  
Vol 31 (2) ◽  
pp. 138-143 ◽  
Author(s):  
Qingguo Du ◽  
Xueyan Guo ◽  
Xiyang Zhang ◽  
Wenjing Zhou ◽  
Zhuo Liu ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
Colon Cancer ◽  
Genetic Model ◽  
Association Studies ◽  
Chinese Han Population ◽  
Genome Wide Association Studies ◽  
Nucleotide Polymorphisms ◽  
Chinese Han ◽  
Han Population ◽  
Increased Risk

Purpose Colorectal cancer (CRC) is the third most common cancer and fourth leading cause of cancer mortality, and twin studies have shown that approximately 35% of the variation in susceptibility to CRC involves inherited genetic differences. We sought to investigate potential genetic associations between some single nucleotide polymorphisms (SNPs) and the risk of CRC in the Chinese Han population. Methods We conducted a case-control study including 269 cases and 309 controls. Sixteen SNPs associated with CRC risk were selected from previous genome-wide association studies and genotyped using Sequenom MassARRAY technology. Odds ratios and 95% confidence intervals (CIs) were calculated by unconditional logistic regression adjusting for age and gender. Results Using the chi-squared test we found that rs9365723 was associated with CRC risk (p = 0.012). With genetic model analysis, the genotype A/G-G/G (OR = 1.50; 95% CI 1.02-2.21; p = 0.038) of rs9365723 showed an increased risk of CRC in the dominant model. Furthermore, we found that rs9365723 was associated with an increased risk only for colon cancer but not rectal cancer (p = 0.009 and p = 0.414, respectively). Conclusions Our results, combined with previous studies, suggest that rs9365723, located on SYNJ2, is associated with the risk of CRC in a Chinese population. Thus, SYNJ2 may play a role in the development of CRC, especially colon cancer.

scholarly journals Association between AXIN1 Gene Polymorphisms and Bladder Cancer in Chinese Han Population

2019 ◽  
Vol 2019 ◽  
pp. 1-8 ◽  
Author(s):  
Qin Li ◽  
Peng Zhang ◽  
Yanyun Wang ◽  
Yan Zhang ◽  
Kai Li ◽  
...  
Keyword(s):  
Bladder Cancer ◽  
Gene Polymorphisms ◽  
Protective Factor ◽  
Nucleotide Polymorphisms ◽  
Chinese Han ◽  
Potential Association ◽  
Increased Risk ◽  
Pcr Rflp ◽  
Poor Differentiation ◽  
Muscle Invasive

Background. Previous evidence has indicated that the reduction of axis inhibition protein 1 (AXIN1) expression is related with the poor differentiation of non-small-cell lung cancer (NSCLC). However, the potential association between AXIN1 and bladder cancer (BC) is unknown. We aimed to initially explore the relevance of AXIN1 gene polymorphisms (rs12921862 C/A, rs1805105 T/C, and rs370681 C/T) and BC. Methods. Three hundred and sixteen BC patients and 419 healthy controls had been enrolled. Polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) method was used for genotyping three tag single-nucleotide polymorphisms (SNPs) of AXIN1. The SNPstats online analysis software and SPSS software were used for statistical analysis. Results. Our data revealed that three tag SNPs were associated with an increased risk of BC (rs12921862: P<0.001, OR 95%CI=4.61 (3.13-6.81); rs1805105: P=0.046, OR 95%CI=1.35 (1.00-1.82); and rs370681: P=0.004, OR 95%CI=1.56 (1.15-2.10)). For rs12921862, A allele was an independently protective factor which correlated with a better prognosis in non-muscle-invasive bladder cancer (NMIBC) patients (P=0.03, OR 95%CI=0.10 (0.01-0.84)). Stratification analysis demonstrated that rs370681 polymorphism was related with high-grade bladder cancer (P=0.04, OR 95%CI=1.85 (1.04-3.23)). Conclusion. The AXIN1 gene polymorphisms might implicate in BC risk, and rs12921862 could be a potential forecasting factor for prognosis of BC patients.

scholarly journals Genetic Polymorphisms ofIL1B, IL6,andTNFαin a Chinese Han Population with Pulmonary Tuberculosis

2018 ◽  
Vol 2018 ◽  
pp. 1-10 ◽  
Author(s):  
Shouquan Wu ◽  
Yu Wang ◽  
Miaomiao Zhang ◽  
Saurav S. Shrestha ◽  
Minggui Wang ◽  
...  
Keyword(s):  
Pulmonary Tuberculosis ◽  
Protective Factor ◽  
Disease Risk ◽  
Nucleotide Polymorphisms ◽  
Chinese Han ◽  
Increased Risk ◽  
Latent Tb ◽  
Cytokine Gene Polymorphisms ◽  
Latent Tb Infection ◽  
The Relationship

Background. The factors that predispose to pulmonary tuberculosis (PTB) are not fully understood. Previous studies have shown that cytokine gene polymorphisms were associated with PTB.Objectives. In this study, we have investigated the relationship betweenILB,IL6,andTNFαpolymorphisms and a predisposition toMycobacterium tuberculosis(MTB) infection and PTB.Methods. A total of 209 cases of PTB, 201 subjects with latent TB infection (LTBI), and 204 healthy controls (HCS) were included in this study. Logistic regression analyses under allelic, homozygous, and heterozygous models were used to calculatePvalues, odds ratios (ORs), and 95% confidence intervals (CIs) for assessing the association between single nucleotide polymorphisms (SNPs) and disease risk, adjusting for sex and age. Genotyping was conducted using the improved multiplex ligase detection reaction (iMLDR) method.Results. When comparing PTB patients with LTBI subjects, significant associations with disease development were observed for SNPs ofIL6andTNFα. When comparing LTBI subjects with HCS,IL1Bpolymorphisms were significantly associated with LIBI. Haplotype analyses suggested that the CGG haplotype ofIL1Bwas associated with an increased risk of PTB (P=0.039, OR = 1.34, 95% CI: 1.01–1.76), while the TTGCG haplotype ofTNFαwas a protective factor against PTB (P=0.039, OR = 0.66, 95% CI: 0.44–0.98).Conclusion. Our study demonstrated thatIL1Bvariants were related to LTBI andIL6andTNFαvariants were associated with PTB.

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