04525nas a2200901 4500008004100000022001400041245012800055210006900183260001300252300001200265490000700277520189900284653001802183653003002201653001902231653001102250653003602261653000902297653002302306100002202329700002702351700002502378700001402403700002602417700002002443700002102463700002002484700002402504700002402528700002302552700002602575700002002601700001802621700002002639700002002659700002302679700002302702700002002725700002102745700001902766700002202785700002302807700001702830700002102847700002402868700001502892700001702907700002002924700001802944700002102962700002502983700002803008700002803036700002203064700002503086700002103111700002103132700002503153700002103178700002503199700001803224700002103242700001903263700002403282700002003306700002803326700002203354700002003376700002303396700003003419700002503449700002403474700002003498700002003518700002503538710002403563856003603587 2011 eng d a1939-327X00aTotal zinc intake may modify the glucose-raising effect of a zinc transporter (SLC30A8) variant: a 14-cohort meta-analysis.0 aTotal zinc intake may modify the glucoseraising effect of a zinc c2011 Sep a2407-160 v603 a
OBJECTIVE: Many genetic variants have been associated with glucose homeostasis and type 2 diabetes in genome-wide association studies. Zinc is an essential micronutrient that is important for β-cell function and glucose homeostasis. We tested the hypothesis that zinc intake could influence the glucose-raising effect of specific variants.
RESEARCH DESIGN AND METHODS: We conducted a 14-cohort meta-analysis to assess the interaction of 20 genetic variants known to be related to glycemic traits and zinc metabolism with dietary zinc intake (food sources) and a 5-cohort meta-analysis to assess the interaction with total zinc intake (food sources and supplements) on fasting glucose levels among individuals of European ancestry without diabetes.
RESULTS: We observed a significant association of total zinc intake with lower fasting glucose levels (β-coefficient ± SE per 1 mg/day of zinc intake: -0.0012 ± 0.0003 mmol/L, summary P value = 0.0003), while the association of dietary zinc intake was not significant. We identified a nominally significant interaction between total zinc intake and the SLC30A8 rs11558471 variant on fasting glucose levels (β-coefficient ± SE per A allele for 1 mg/day of greater total zinc intake: -0.0017 ± 0.0006 mmol/L, summary interaction P value = 0.005); this result suggests a stronger inverse association between total zinc intake and fasting glucose in individuals carrying the glucose-raising A allele compared with individuals who do not carry it. None of the other interaction tests were statistically significant.
CONCLUSIONS: Our results suggest that higher total zinc intake may attenuate the glucose-raising effect of the rs11558471 SLC30A8 (zinc transporter) variant. Our findings also support evidence for the association of higher total zinc intake with lower fasting glucose levels.
10aBlood Glucose10aCation Transport Proteins10aCohort Studies10aHumans10aPolymorphism, Single Nucleotide10aZinc10aZinc Transporter 81 aKanoni, Stavroula1 aNettleton, Jennifer, A1 aHivert, Marie-France1 aYe, Zheng1 avan Rooij, Frank, J A1 aShungin, Dmitry1 aSonestedt, Emily1 aNgwa, Julius, S1 aWojczynski, Mary, K1 aLemaitre, Rozenn, N1 aGustafsson, Stefan1 aAnderson, Jennifer, S1 aTanaka, Toshiko1 aHindy, George1 aSaylor, Georgia1 aRenstrom, Frida1 aBennett, Amanda, J1 aDuijn, Cornelia, M1 aFlorez, Jose, C1 aFox, Caroline, S1 aHofman, Albert1 aHoogeveen, Ron, C1 aHouston, Denise, K1 aHu, Frank, B1 aJacques, Paul, F1 aJohansson, Ingegerd1 aLind, Lars1 aLiu, Yongmei1 aMcKeown, Nicola1 aOrdovas, Jose1 aPankow, James, S1 aSijbrands, Eric, J G1 aSyvänen, Ann-Christine1 aUitterlinden, André, G1 aYannakoulia, Mary1 aZillikens, Carola, M1 aWareham, Nick, J1 aProkopenko, Inga1 aBandinelli, Stefania1 aForouhi, Nita, G1 aCupples, Adrienne, L1 aLoos, Ruth, J1 aHallmans, Göran1 aDupuis, Josée1 aLangenberg, Claudia1 aFerrucci, Luigi1 aKritchevsky, Stephen, B1 aMcCarthy, Mark, I1 aIngelsson, Erik1 aBorecki, Ingrid, B1 aWitteman, Jacqueline, C M1 aOrho-Melander, Marju1 aSiscovick, David, S1 aMeigs, James, B1 aFranks, Paul, W1 aDedoussis, George, V1 aMAGIC investigators uhttps://chs-nhlbi.org/node/1308