Skip to main content
Top
Published in: BMC Medical Genetics 1/2012

Open Access 01-12-2012 | Research article

Genetic variant I148M in PNPLA3 is associated with the ultrasonography-determined steatosis degree in a Chinese population

Authors: Yiling Li, Chao Xing, Zhong Tian, Hung-Chih Ku

Published in: BMC Medical Genetics | Issue 1/2012

Login to get access

Abstract

Background

Nonalcoholic fatty liver disease (NAFLD) is an escalating medical problem worldwide. A nonsynonymous single nucleotide polymorphism rs738409 (I148M) in patatin-like phospholipase domain-containing protein 3 (PNPLA3) predisposes susceptibility to NAFLD; however, its association with steatosis grade is inconsistent in the literature. In particular, there was no significant association found between I148M and steatosis grade in two East Asian-based studies. In this study we aim to investigate whether I148M is associated with the ultrasonography-determined steatosis degree in Chinese adults.

Methods

203 NAFLD cases and 202 matched controls were recruited. Cases were classified into mild, moderate and severe fatty liver by ultrasonography. Association between I148M and the ultrasonography-determined steatosis degree as well as other clinical parameters was evaluated.

Results

The I148M variant was associated with the ultrasonography-determined steatosis degree with the M allele frequencies being 0.32, 0.54, and 0.87 in mild (n=105), moderate (n=83), and severe (n=15) cases, respectively (P–value = 7.6×10-8). We also confirmed the interaction between I148M variation and body mass index towards elevated plasma alanine aminotransferase levels in cases (P–value = 4.4×10-4).

Conclusion

The PNPLA3 I148M variant is associated with the ultrasonography-determined steatosis degree in Chinese population.
Appendix
Available only for authorised users
Literature
1.
2.
go back to reference Omagari K, Kadokawa Y, Masuda J, Egawa I, Sawa T, Hazama H, Ohba K, Isomoto H, Mizuta Y, Hayashida K, et al: Fatty liver in non-alcoholic non-overweight Japanese adults: incidence and clinical characteristics. J Gastroenterol Hepatol. 2002, 17: 1098-1105. 10.1046/j.1440-1746.2002.02846.x.CrossRefPubMed Omagari K, Kadokawa Y, Masuda J, Egawa I, Sawa T, Hazama H, Ohba K, Isomoto H, Mizuta Y, Hayashida K, et al: Fatty liver in non-alcoholic non-overweight Japanese adults: incidence and clinical characteristics. J Gastroenterol Hepatol. 2002, 17: 1098-1105. 10.1046/j.1440-1746.2002.02846.x.CrossRefPubMed
3.
go back to reference Park SH, Jeon WK, Kim SH, Kim HJ, Park DI, Cho YK, Sung IK, Sohn CI, Keum DK, Kim BI: Prevalence and risk factors of non-alcoholic fatty liver disease among Korean adults. J Gastroenterol Hepatol. 2006, 21: 138-143. 10.1111/j.1440-1746.2005.04086.x.CrossRefPubMed Park SH, Jeon WK, Kim SH, Kim HJ, Park DI, Cho YK, Sung IK, Sohn CI, Keum DK, Kim BI: Prevalence and risk factors of non-alcoholic fatty liver disease among Korean adults. J Gastroenterol Hepatol. 2006, 21: 138-143. 10.1111/j.1440-1746.2005.04086.x.CrossRefPubMed
4.
go back to reference Fan JG, Farrell GC: Epidemiology of non-alcoholic fatty liver disease in China. J Hepatol. 2009, 50: 204-210. 10.1016/j.jhep.2008.10.010.CrossRefPubMed Fan JG, Farrell GC: Epidemiology of non-alcoholic fatty liver disease in China. J Hepatol. 2009, 50: 204-210. 10.1016/j.jhep.2008.10.010.CrossRefPubMed
5.
go back to reference Chitturi S, Farrell GC, George J: Non-alcoholic steatohepatitis in the Asia-Pacific region: future shock?. J Gastroenterol Hepatol. 2004, 19: 368-374. 10.1111/j.1440-1746.2003.03252.x.CrossRefPubMed Chitturi S, Farrell GC, George J: Non-alcoholic steatohepatitis in the Asia-Pacific region: future shock?. J Gastroenterol Hepatol. 2004, 19: 368-374. 10.1111/j.1440-1746.2003.03252.x.CrossRefPubMed
6.
go back to reference Fan JG, Saibara T, Chitturi S, Kim BI, Sung JJ, Chutaputti A: What are the risk factors and settings for non-alcoholic fatty liver disease in Asia-Pacific?. J Gastroenterol Hepatol. 2007, 22: 794-800. 10.1111/j.1440-1746.2007.04952.x.CrossRefPubMed Fan JG, Saibara T, Chitturi S, Kim BI, Sung JJ, Chutaputti A: What are the risk factors and settings for non-alcoholic fatty liver disease in Asia-Pacific?. J Gastroenterol Hepatol. 2007, 22: 794-800. 10.1111/j.1440-1746.2007.04952.x.CrossRefPubMed
7.
go back to reference Ludwig J, Viggiano TR, McGill DB, Oh BJ: Nonalcoholic steatohepatitis: Mayo Clinic experiences with a hitherto unnamed disease. Mayo Clin Proc. 1980, 55: 434-438.PubMed Ludwig J, Viggiano TR, McGill DB, Oh BJ: Nonalcoholic steatohepatitis: Mayo Clinic experiences with a hitherto unnamed disease. Mayo Clin Proc. 1980, 55: 434-438.PubMed
8.
go back to reference Struben VM, Hespenheide EE, Caldwell SH: Nonalcoholic steatohepatitis and cryptogenic cirrhosis within kindreds. Am J Med. 2000, 108: 9-13.CrossRefPubMed Struben VM, Hespenheide EE, Caldwell SH: Nonalcoholic steatohepatitis and cryptogenic cirrhosis within kindreds. Am J Med. 2000, 108: 9-13.CrossRefPubMed
9.
go back to reference Schwimmer JB, Celedon MA, Lavine JE, Salem R, Campbell N, Schork NJ, Shiehmorteza M, Yokoo T, Chavez A, Middleton MS, et al: Heritability of nonalcoholic fatty liver disease. Gastroenterology. 2009, 136: 1585-1592. 10.1053/j.gastro.2009.01.050.CrossRefPubMedPubMedCentral Schwimmer JB, Celedon MA, Lavine JE, Salem R, Campbell N, Schork NJ, Shiehmorteza M, Yokoo T, Chavez A, Middleton MS, et al: Heritability of nonalcoholic fatty liver disease. Gastroenterology. 2009, 136: 1585-1592. 10.1053/j.gastro.2009.01.050.CrossRefPubMedPubMedCentral
10.
go back to reference Hernaez R: Genetic factors associated with the presence and progression of nonalcoholic fatty liver disease: a narrative review. Gastroenterol Hepatol. 2012, 35: 32-41. 10.1016/j.gastrohep.2011.08.002.CrossRefPubMed Hernaez R: Genetic factors associated with the presence and progression of nonalcoholic fatty liver disease: a narrative review. Gastroenterol Hepatol. 2012, 35: 32-41. 10.1016/j.gastrohep.2011.08.002.CrossRefPubMed
11.
go back to reference Romeo S, Kozlitina J, Xing C, Pertsemlidis A, Cox D, Pennacchio LA, Boerwinkle E, Cohen JC, Hobbs HH: Genetic variation in PNPLA3 confers susceptibility to nonalcoholic fatty liver disease. Nat Genet. 2008, 40: 1461-1465. 10.1038/ng.257.CrossRefPubMedPubMedCentral Romeo S, Kozlitina J, Xing C, Pertsemlidis A, Cox D, Pennacchio LA, Boerwinkle E, Cohen JC, Hobbs HH: Genetic variation in PNPLA3 confers susceptibility to nonalcoholic fatty liver disease. Nat Genet. 2008, 40: 1461-1465. 10.1038/ng.257.CrossRefPubMedPubMedCentral
12.
go back to reference Chalasani N, Guo X, Loomba R, Goodarzi MO, Haritunians T, Kwon S, Cui J, Taylor KD, Wilson L, Cummings OW, et al: Genome-wide association study identifies variants associated with histologic features of nonalcoholic Fatty liver disease. Gastroenterology. 2010, 139: 1567-1576. 10.1053/j.gastro.2010.07.057. 1576 e1561-1566CrossRefPubMedPubMedCentral Chalasani N, Guo X, Loomba R, Goodarzi MO, Haritunians T, Kwon S, Cui J, Taylor KD, Wilson L, Cummings OW, et al: Genome-wide association study identifies variants associated with histologic features of nonalcoholic Fatty liver disease. Gastroenterology. 2010, 139: 1567-1576. 10.1053/j.gastro.2010.07.057. 1576 e1561-1566CrossRefPubMedPubMedCentral
13.
go back to reference Speliotes EK, Yerges-Armstrong LM, Wu J, Hernaez R, Kim LJ, Palmer CD, Gudnason V, Eiriksdottir G, Garcia ME, Launer LJ, et al: Genome-wide association analysis identifies variants associated with nonalcoholic fatty liver disease that have distinct effects on metabolic traits. PLoS Genet. 2011, 7: e1001324-10.1371/journal.pgen.1001324.CrossRefPubMedPubMedCentral Speliotes EK, Yerges-Armstrong LM, Wu J, Hernaez R, Kim LJ, Palmer CD, Gudnason V, Eiriksdottir G, Garcia ME, Launer LJ, et al: Genome-wide association analysis identifies variants associated with nonalcoholic fatty liver disease that have distinct effects on metabolic traits. PLoS Genet. 2011, 7: e1001324-10.1371/journal.pgen.1001324.CrossRefPubMedPubMedCentral
14.
go back to reference Romeo S, Huang-Doran I, Baroni MG, Kotronen A: Unravelling the pathogenesis of fatty liver disease: patatin-like phospholipase domain-containing 3 protein. Curr Opin Lipidol. 2010, 21: 247-252. 10.1097/MOL.0b013e328338ca61.CrossRefPubMed Romeo S, Huang-Doran I, Baroni MG, Kotronen A: Unravelling the pathogenesis of fatty liver disease: patatin-like phospholipase domain-containing 3 protein. Curr Opin Lipidol. 2010, 21: 247-252. 10.1097/MOL.0b013e328338ca61.CrossRefPubMed
15.
go back to reference Hotta K, Yoneda M, Hyogo H, Ochi H, Mizusawa S, Ueno T, Chayama K, Nakajima A, Nakao K, Sekine A: Association of the rs738409 polymorphism in PNPLA3 with liver damage and the development of nonalcoholic fatty liver disease. BMC Med Genet. 2010, 11: 172-10.1186/1471-2350-11-172.CrossRefPubMedPubMedCentral Hotta K, Yoneda M, Hyogo H, Ochi H, Mizusawa S, Ueno T, Chayama K, Nakajima A, Nakao K, Sekine A: Association of the rs738409 polymorphism in PNPLA3 with liver damage and the development of nonalcoholic fatty liver disease. BMC Med Genet. 2010, 11: 172-10.1186/1471-2350-11-172.CrossRefPubMedPubMedCentral
16.
go back to reference Li X, Zhao Q, Wu K, Fan D: I148M variant of PNPLA3 confer increased risk for nonalcoholic fatty liver disease not only in European population, but also in Chinese population. Hepatology. 2011, 54: 2275-CrossRefPubMed Li X, Zhao Q, Wu K, Fan D: I148M variant of PNPLA3 confer increased risk for nonalcoholic fatty liver disease not only in European population, but also in Chinese population. Hepatology. 2011, 54: 2275-CrossRefPubMed
17.
go back to reference Li Y, Xing C, Cohen JC, Hobbs HH: Genetic variant in PNPLA3 is associated with nonalcoholic fatty liver disease in China. Hepatology. 2012, 55: 327-328. 10.1002/hep.24659.CrossRefPubMedPubMedCentral Li Y, Xing C, Cohen JC, Hobbs HH: Genetic variant in PNPLA3 is associated with nonalcoholic fatty liver disease in China. Hepatology. 2012, 55: 327-328. 10.1002/hep.24659.CrossRefPubMedPubMedCentral
18.
go back to reference Wang CW, Lin HY, Shin SJ, Yu ML, Lin ZY, Dai CY, Huang JF, Chen SC, Li SS, Chuang WL: The PNPLA3 I148M polymorphism is associated with insulin resistance and nonalcoholic fatty liver disease in a normoglycaemic population. Liver Int. 2011, 31: 1326-1331. 10.1111/j.1478-3231.2011.02526.x.CrossRefPubMed Wang CW, Lin HY, Shin SJ, Yu ML, Lin ZY, Dai CY, Huang JF, Chen SC, Li SS, Chuang WL: The PNPLA3 I148M polymorphism is associated with insulin resistance and nonalcoholic fatty liver disease in a normoglycaemic population. Liver Int. 2011, 31: 1326-1331. 10.1111/j.1478-3231.2011.02526.x.CrossRefPubMed
19.
go back to reference Kawaguchi T, Sumida Y, Umemura A, Matsuo K, Takahashi M, Takamura T, Yasui K, Saibara T, Hashimoto E, Kawanaka M, et al: Genetic Polymorphisms of the human PNPLA3 gene are strongly associated with severity of non-alcoholic fatty liver disease in japanese. PLoS One. 2012, 7: e38322-10.1371/journal.pone.0038322.CrossRefPubMedPubMedCentral Kawaguchi T, Sumida Y, Umemura A, Matsuo K, Takahashi M, Takamura T, Yasui K, Saibara T, Hashimoto E, Kawanaka M, et al: Genetic Polymorphisms of the human PNPLA3 gene are strongly associated with severity of non-alcoholic fatty liver disease in japanese. PLoS One. 2012, 7: e38322-10.1371/journal.pone.0038322.CrossRefPubMedPubMedCentral
20.
go back to reference Sookoian S, Pirola CJ: Meta-analysis of the influence of I148M variant of patatin-like phospholipase domain containing 3 gene (PNPLA3) on the susceptibility and histological severity of nonalcoholic fatty liver disease. Hepatology. 2011, 53: 1883-1894. 10.1002/hep.24283.CrossRefPubMed Sookoian S, Pirola CJ: Meta-analysis of the influence of I148M variant of patatin-like phospholipase domain containing 3 gene (PNPLA3) on the susceptibility and histological severity of nonalcoholic fatty liver disease. Hepatology. 2011, 53: 1883-1894. 10.1002/hep.24283.CrossRefPubMed
21.
go back to reference Romeo S, Sentinelli F, Dash S, Yeo GS, Savage DB, Leonetti F, Capoccia D, Incani M, Maglio C, Iacovino M, et al: Morbid obesity exposes the association between PNPLA3 I148M (rs738409) and indices of hepatic injury in individuals of European descent. Int J Obes (Lond). 2010, 34: 190-194. 10.1038/ijo.2009.216.CrossRef Romeo S, Sentinelli F, Dash S, Yeo GS, Savage DB, Leonetti F, Capoccia D, Incani M, Maglio C, Iacovino M, et al: Morbid obesity exposes the association between PNPLA3 I148M (rs738409) and indices of hepatic injury in individuals of European descent. Int J Obes (Lond). 2010, 34: 190-194. 10.1038/ijo.2009.216.CrossRef
22.
go back to reference Romeo S, Sentinelli F, Cambuli VM, Incani M, Congiu T, Matta V, Pilia S, Huang-Doran I, Cossu E, Loche S, et al: The 148M allele of the PNPLA3 gene is associated with indices of liver damage early in life. J Hepatol. 2010, 53: 335-338. 10.1016/j.jhep.2010.02.034.CrossRefPubMed Romeo S, Sentinelli F, Cambuli VM, Incani M, Congiu T, Matta V, Pilia S, Huang-Doran I, Cossu E, Loche S, et al: The 148M allele of the PNPLA3 gene is associated with indices of liver damage early in life. J Hepatol. 2010, 53: 335-338. 10.1016/j.jhep.2010.02.034.CrossRefPubMed
23.
go back to reference Lin YC, Chang PF, Hu FC, Yang WS, Chang MH, Ni YH: A common variant in the PNPLA3 gene is a risk factor for non-alcoholic fatty liver disease in obese Taiwanese children. J Pediatr. 2011, 158: 740-744. 10.1016/j.jpeds.2010.11.016.CrossRefPubMed Lin YC, Chang PF, Hu FC, Yang WS, Chang MH, Ni YH: A common variant in the PNPLA3 gene is a risk factor for non-alcoholic fatty liver disease in obese Taiwanese children. J Pediatr. 2011, 158: 740-744. 10.1016/j.jpeds.2010.11.016.CrossRefPubMed
24.
go back to reference Giudice EM, Grandone A, Cirillo G, Santoro N, Amato A, Brienza C, Savarese P, Marzuillo P, Perrone L: The association of PNPLA3 variants with liver enzymes in childhood obesity is driven by the interaction with abdominal fat. PLoS One. 2011, 6: e27933-10.1371/journal.pone.0027933.CrossRefPubMed Giudice EM, Grandone A, Cirillo G, Santoro N, Amato A, Brienza C, Savarese P, Marzuillo P, Perrone L: The association of PNPLA3 variants with liver enzymes in childhood obesity is driven by the interaction with abdominal fat. PLoS One. 2011, 6: e27933-10.1371/journal.pone.0027933.CrossRefPubMed
25.
go back to reference Palmer CN, Maglio C, Pirazzi C, Burza MA, Adiels M, Burch L, Donnelly LA, Colhoun H, Doney AS, Dillon JF, et al: Paradoxical lower serum triglyceride levels and higher type 2 diabetes Mellitus susceptibility in obese individuals with the PNPLA3 148M variant. PLoS One. 2012, 7: e39362-10.1371/journal.pone.0039362.CrossRefPubMedPubMedCentral Palmer CN, Maglio C, Pirazzi C, Burza MA, Adiels M, Burch L, Donnelly LA, Colhoun H, Doney AS, Dillon JF, et al: Paradoxical lower serum triglyceride levels and higher type 2 diabetes Mellitus susceptibility in obese individuals with the PNPLA3 148M variant. PLoS One. 2012, 7: e39362-10.1371/journal.pone.0039362.CrossRefPubMedPubMedCentral
26.
go back to reference Zeng MD, Fan JG, Lu LG, Li YM, Chen CW, Wang BY, Mao YM: Guidelines for the diagnosis and treatment of nonalcoholic fatty liver diseases. J Dig Dis. 2008, 9: 108-112. 10.1111/j.1751-2980.2008.00331.x.CrossRefPubMed Zeng MD, Fan JG, Lu LG, Li YM, Chen CW, Wang BY, Mao YM: Guidelines for the diagnosis and treatment of nonalcoholic fatty liver diseases. J Dig Dis. 2008, 9: 108-112. 10.1111/j.1751-2980.2008.00331.x.CrossRefPubMed
27.
go back to reference Luan JA, Wong MY, Day NE, Wareham NJ: Sample size determination for studies of gene-environment interaction. Int J Epidemiol. 2001, 30: 1035-1040. 10.1093/ije/30.5.1035.CrossRefPubMed Luan JA, Wong MY, Day NE, Wareham NJ: Sample size determination for studies of gene-environment interaction. Int J Epidemiol. 2001, 30: 1035-1040. 10.1093/ije/30.5.1035.CrossRefPubMed
28.
go back to reference Garcia-Closas M, Lubin JH: Power and sample size calculations in case-control studies of gene-environment interactions: comments on different approaches. Am J Epidemiol. 1999, 149: 689-692. 10.1093/oxfordjournals.aje.a009876.CrossRefPubMed Garcia-Closas M, Lubin JH: Power and sample size calculations in case-control studies of gene-environment interactions: comments on different approaches. Am J Epidemiol. 1999, 149: 689-692. 10.1093/oxfordjournals.aje.a009876.CrossRefPubMed
29.
go back to reference Lubin JH, Gail MH: On power and sample size for studying features of the relative odds of disease. Am J Epidemiol. 1990, 131: 552-566.PubMed Lubin JH, Gail MH: On power and sample size for studying features of the relative odds of disease. Am J Epidemiol. 1990, 131: 552-566.PubMed
30.
go back to reference VanderWeele TJ: Sample size and power calculations for case-only interaction studies. Epidemiology. 2011, 22: 873-874. 10.1097/EDE.0b013e31822e18e5.CrossRefPubMed VanderWeele TJ: Sample size and power calculations for case-only interaction studies. Epidemiology. 2011, 22: 873-874. 10.1097/EDE.0b013e31822e18e5.CrossRefPubMed
31.
go back to reference R Development Core Team: R: A language and environment for statistical computing. R Foundation for Statistical Computing. 2011, Vienna: Austria R Development Core Team: R: A language and environment for statistical computing. R Foundation for Statistical Computing. 2011, Vienna: Austria
32.
go back to reference Wittke-Thompson JK, Pluzhnikov A, Cox NJ: Rational inferences about departures from Hardy-Weinberg equilibrium. Am J Hum Genet. 2005, 76: 967-986. 10.1086/430507.CrossRefPubMedPubMedCentral Wittke-Thompson JK, Pluzhnikov A, Cox NJ: Rational inferences about departures from Hardy-Weinberg equilibrium. Am J Hum Genet. 2005, 76: 967-986. 10.1086/430507.CrossRefPubMedPubMedCentral
33.
go back to reference Sookoian S, Castano GO, Burgueno AL, Gianotti TF, Rosselli MS, Pirola CJ: A nonsynonymous gene variant in the adiponutrin gene is associated with nonalcoholic fatty liver disease severity. J Lipid Res. 2009, 50: 2111-2116. 10.1194/jlr.P900013-JLR200.CrossRefPubMedPubMedCentral Sookoian S, Castano GO, Burgueno AL, Gianotti TF, Rosselli MS, Pirola CJ: A nonsynonymous gene variant in the adiponutrin gene is associated with nonalcoholic fatty liver disease severity. J Lipid Res. 2009, 50: 2111-2116. 10.1194/jlr.P900013-JLR200.CrossRefPubMedPubMedCentral
34.
go back to reference Rotman Y, Koh C, Zmuda JM, Kleiner DE, Liang TJ: The association of genetic variability in patatin-like phospholipase domain-containing protein 3 (PNPLA3) with histological severity of nonalcoholic fatty liver disease. Hepatology. 2010, 52: 894-903. 10.1002/hep.23759.CrossRefPubMedPubMedCentral Rotman Y, Koh C, Zmuda JM, Kleiner DE, Liang TJ: The association of genetic variability in patatin-like phospholipase domain-containing protein 3 (PNPLA3) with histological severity of nonalcoholic fatty liver disease. Hepatology. 2010, 52: 894-903. 10.1002/hep.23759.CrossRefPubMedPubMedCentral
35.
go back to reference Speliotes EK, Butler JL, Palmer CD, Voight BF, Hirschhorn JN: PNPLA3 variants specifically confer increased risk for histologic nonalcoholic fatty liver disease but not metabolic disease. Hepatology. 2010, 52: 904-912. 10.1002/hep.23768.CrossRefPubMedPubMedCentral Speliotes EK, Butler JL, Palmer CD, Voight BF, Hirschhorn JN: PNPLA3 variants specifically confer increased risk for histologic nonalcoholic fatty liver disease but not metabolic disease. Hepatology. 2010, 52: 904-912. 10.1002/hep.23768.CrossRefPubMedPubMedCentral
36.
go back to reference Valenti L, Al-Serri A, Daly AK, Galmozzi E, Rametta R, Dongiovanni P, Nobili V, Mozzi E, Roviaro G, Vanni E, et al: Homozygosity for the patatin-like phospholipase-3/adiponutrin I148M polymorphism influences liver fibrosis in patients with nonalcoholic fatty liver disease. Hepatology. 2010, 51: 1209-1217. 10.1002/hep.23622.CrossRefPubMed Valenti L, Al-Serri A, Daly AK, Galmozzi E, Rametta R, Dongiovanni P, Nobili V, Mozzi E, Roviaro G, Vanni E, et al: Homozygosity for the patatin-like phospholipase-3/adiponutrin I148M polymorphism influences liver fibrosis in patients with nonalcoholic fatty liver disease. Hepatology. 2010, 51: 1209-1217. 10.1002/hep.23622.CrossRefPubMed
37.
go back to reference Valenti L, Alisi A, Galmozzi E, Bartuli A, Del Menico B, Alterio A, Dongiovanni P, Fargion S, Nobili V: I148M patatin-like phospholipase domain-containing 3 gene variant and severity of pediatric nonalcoholic fatty liver disease. Hepatology. 2010, 52: 1274-1280. 10.1002/hep.23823.CrossRefPubMed Valenti L, Alisi A, Galmozzi E, Bartuli A, Del Menico B, Alterio A, Dongiovanni P, Fargion S, Nobili V: I148M patatin-like phospholipase domain-containing 3 gene variant and severity of pediatric nonalcoholic fatty liver disease. Hepatology. 2010, 52: 1274-1280. 10.1002/hep.23823.CrossRefPubMed
38.
go back to reference Needleman L, Kurtz AB, Rifkin MD, Cooper HS, Pasto ME, Goldberg BB: Sonography of diffuse benign liver disease: accuracy of pattern recognition and grading. Am J Roentgenol. 1986, 146: 1011-1015.CrossRef Needleman L, Kurtz AB, Rifkin MD, Cooper HS, Pasto ME, Goldberg BB: Sonography of diffuse benign liver disease: accuracy of pattern recognition and grading. Am J Roentgenol. 1986, 146: 1011-1015.CrossRef
39.
go back to reference Yuan X, Waterworth D, Perry JR, Lim N, Song K, Chambers JC, Zhang W, Vollenweider P, Stirnadel H, Johnson T, et al: Population-based genome-wide association studies reveal six loci influencing plasma levels of liver enzymes. Am J Hum Genet. 2008, 83: 520-528. 10.1016/j.ajhg.2008.09.012.CrossRefPubMedPubMedCentral Yuan X, Waterworth D, Perry JR, Lim N, Song K, Chambers JC, Zhang W, Vollenweider P, Stirnadel H, Johnson T, et al: Population-based genome-wide association studies reveal six loci influencing plasma levels of liver enzymes. Am J Hum Genet. 2008, 83: 520-528. 10.1016/j.ajhg.2008.09.012.CrossRefPubMedPubMedCentral
40.
go back to reference Chambers JC, Zhang W, Sehmi J, Li X, Wass MN, Van der Harst P, Holm H, Sanna S, Kavousi M, Baumeister SE, et al: Genome-wide association study identifies loci influencing concentrations of liver enzymes in plasma. Nat Genet. 2011, 43: 1131-1138. 10.1038/ng.970.CrossRefPubMedPubMedCentral Chambers JC, Zhang W, Sehmi J, Li X, Wass MN, Van der Harst P, Holm H, Sanna S, Kavousi M, Baumeister SE, et al: Genome-wide association study identifies loci influencing concentrations of liver enzymes in plasma. Nat Genet. 2011, 43: 1131-1138. 10.1038/ng.970.CrossRefPubMedPubMedCentral
41.
go back to reference Kollerits B, Coassin S, Beckmann ND, Teumer A, Kiechl S, Doring A, Kavousi M, Hunt SC, Lamina C, Paulweber B, et al: Genetic evidence for a role of adiponutrin in the metabolism of apolipoprotein B-containing lipoproteins. Hum Mol Genet. 2009, 18: 4669-4676. 10.1093/hmg/ddp424.CrossRefPubMedPubMedCentral Kollerits B, Coassin S, Beckmann ND, Teumer A, Kiechl S, Doring A, Kavousi M, Hunt SC, Lamina C, Paulweber B, et al: Genetic evidence for a role of adiponutrin in the metabolism of apolipoprotein B-containing lipoproteins. Hum Mol Genet. 2009, 18: 4669-4676. 10.1093/hmg/ddp424.CrossRefPubMedPubMedCentral
42.
go back to reference Lake AC, Sun Y, Li JL, Kim JE, Johnson JW, Li D, Revett T, Shih HH, Liu W, Paulsen JE, et al: Expression, regulation, and triglyceride hydrolase activity of Adiponutrin family members. J Lipid Res. 2005, 46: 2477-2487. 10.1194/jlr.M500290-JLR200.CrossRefPubMed Lake AC, Sun Y, Li JL, Kim JE, Johnson JW, Li D, Revett T, Shih HH, Liu W, Paulsen JE, et al: Expression, regulation, and triglyceride hydrolase activity of Adiponutrin family members. J Lipid Res. 2005, 46: 2477-2487. 10.1194/jlr.M500290-JLR200.CrossRefPubMed
43.
go back to reference Manco M, Bedogni G, Marcellini M, Devito R, Ciampalini P, Sartorelli MR, Comparcola D, Piemonte F, Nobili V: Waist circumference correlates with liver fibrosis in children with non-alcoholic steatohepatitis. Gut. 2008, 57: 1283-1287. 10.1136/gut.2007.142919.CrossRefPubMed Manco M, Bedogni G, Marcellini M, Devito R, Ciampalini P, Sartorelli MR, Comparcola D, Piemonte F, Nobili V: Waist circumference correlates with liver fibrosis in children with non-alcoholic steatohepatitis. Gut. 2008, 57: 1283-1287. 10.1136/gut.2007.142919.CrossRefPubMed
Metadata
Title
Genetic variant I148M in PNPLA3 is associated with the ultrasonography-determined steatosis degree in a Chinese population
Authors
Yiling Li
Chao Xing
Zhong Tian
Hung-Chih Ku
Publication date
01-12-2012
Publisher
BioMed Central
Published in
BMC Medical Genetics / Issue 1/2012
Electronic ISSN: 1471-2350
DOI
https://doi.org/10.1186/1471-2350-13-113

Other articles of this Issue 1/2012

BMC Medical Genetics 1/2012 Go to the issue