Phosphatidylethanolamine N-Methyltransferase (PEMT) ELISA Kits

Human Phosphatidylethanolamine N-Methyltransferase (PEMT) interaction partners

1. Our study shows that choline intake in Polish pregnant women is inadequate and that polymorphisms of PEMT rs12325817 and PCYT1A rs7639752 are associated with betaine but not choline concentrations.

2. PEMT polymorphisms may be associated with the susceptibility to intrauterine fetal death in the Polish population

3. Study found three gene variants (CLOCK-rs4864548, PEMT-rs936108, and GHRELIN-rs696217) that exhibited uncorrected gene-by-sleep duration interactions in relation to BMI z-scores in a cohort of New Zealand European children. However, no interactions were identified in percentage body fat differences. Notably, these interactions are evident without detectable effects on sleep duration.

4. In genotypic combination analysis considering PEMT -744GG/CHDH +432GG/BHMT +742GG as the reference combination, PEMT -744GC/CHDH +432GG/BHMT +742GG genotypic combination was significantly higher in mothers of a down syndrome child compared with that in control mothers with an odds ratio of 2.061 (95% CI: 1.10-3.86, P=0.0342).

5. Results showed that PEMT mRNA expression in liver tissues of non-alcoholic steatohepatitis (NASH) patients was significantly lower than those with simple steatosis suggesting a distinct clinical entity of lean NASH with insufficiency of PEMT activities.

6. a significant association between the PEMT rs7946 A-allele and a risk of nonalcoholic fatty liver disease, with the effect being more prominent in East-Asians, but not in non-Asians (Meta-Analysis)

7. Data show that phosphatidylethanolamineN-methyltransferase (PEMT) rs12325817 polymorphism only marginally changed the association value with academic achievement.

8. Data suggest that maternal dietary intake during lactation (here, choline intake exceeding dietary recommendations) can alter hepatic PEMT activity and increase choline content of breast milk.

9. MTHFR rs1801131 C allele and PEMT rs4646356 T allele were associated with a high risk of type 2 diabetes in Han Chinese.

10. The GG genotype of the PEMT G774C polymorphism, higher levels of serum homocysteine and lower levels of serum betaine are associated with an increased risk of microangiopathy in patients with diabetes.

11. PEMT is a functional single nucleotide polymorphism (rs7946) in PEMT with sporadic Alzheimer's disease risk in a Han Chinese population.

12. the PEMT -774G>C and CHDH +432G>T polymorphisms were associated with sperm concentration. This finding suggests a possible influence of these genes on sperm quality

13. genetic association studies on endometriosis in a population of women in Poland: Data suggest interaction between an SNP in PEMT (rs4244593) and an SNP in MTHFR (Ala222Val; rs1801133) in infertile women with some indication of endometriosis.

14. nvestigation of factors affecting liver PEMT activity: PEMT activity is lower in liver samples from women who are homozygous for an SNP in PEMT (rs12325817)

15. allele-specific ablation of estrogen receptor-DNA interaction in the PEMT locus prevents hormone-inducible PEMT expression, conferring risk of choline deficiency in women

16. Choline requirements for both women are increased by the genetic polymorphism rs12325817 in phosphatidylethanolamine-N-methyltransferase.

17. Total intake of choline and genotype can influence the concentrations of choline and its metabolites in the breast milk and blood of lactating women and thereby affect the amount of choline available to the developing infant.

18. The allele frequency of PEMT did not show a significant difference between normal control group and fatty liver patients (P=0.222).

19. an examination of the membrane topography of this enzyme

20. PEMT2 mRNA expression was inversely related to tumor proliferation and to histologic grade.

Mouse (Murine) Phosphatidylethanolamine N-Methyltransferase (PEMT) interaction partners

1. fenofibrate partially reversed hepatic steatosis and fibrosis in Pemt(-/-) mice when treatment was initiated after nonalcoholic fatty liver disease (NAFLD) had already been established. Increasing hepatic fatty acid oxidation can compensate for the lower VLDL-triacylglycerol secretion rate and prevent/reverse fatty liver disease in mice lacking PEMT.

2. Results show that hepatic PEMT protein levels and activity are post-translationally repressed in homocystinuria and correlates with decreased phosphatidylcholine.

3. Activation of PPARgamma using pioglitazone in high fat diet-fed Pemt(-/-) mice improved liver function, while these mice were still protected against diet-induced obesity and insulin resistance.

4. Results showed that Pemt deficiency and high-fat diet in mouse model demonstrated the phenotypes resemble to the clinical features of the patients with lean non-alcoholic steatohepatitis.

5. propose that cold-induced hypothermia in HF-fed Pemt(-/-) mice is linked to plasma hypoglycemia due to compromised hepatic glucose production.

6. Lack of PEMT in mice does not promote fatty acid oxidation in skeletal muscle.

7. Decreased lipogenesis in white adipose tissue may contribute to the resistance to diet-induced obesity in Pemt(-/-) mice.

8. these findings indicate that the inhibition of Pemt activity ameliorates the ER stress associated with diabetic nephropathy in a model of type 1 diabetes

9. This study evaluated the role of the role of phosphatidylethanolamine N-methyltransferase in hepatic carbohydrate metabolism in chow-fed mice.

10. Pemt deficiency results in attenuated secretion of very low-density lipoproteins and homocysteine as well as in increased susceptibility to nonalcoholic liver disease.

11. Lack of phosphatidylethanolamine N-methyltransferase decreased liver damage in Abcb4(-/-) mice caused by exposure of the liver to excess bile acids.

12. Treatment strategies aimed at inhibition of PEMT might prevent the accumulation of cardiac triacylglycerol that predisposes individuals to compromised cardiac function.

13. de novo synthesis of choline via PEMT has a previously unappreciated role in regulating whole body energy metabolism.

14. During differentiation of 3T3-L1 cells to adipocytes, the amount of Sp1 protein decreased by approximately 50% just prior to activation of PEMT.

15. Dietary docosahexaenoic acid supplementation modulates hippocampal development in the Pemt-/- mouse.

16. PEMT is required in the secretion of apoB100-containing VLDLs.

17. Results show that phosphatidylethanolamine N -methyltransferase (PEMT) knockout mice do not display normal concentrations of choline metabolites even with a supplemental source of dietary choline.

18. Plasma homocysteine is regulated by phospholipid methylation, and is therefore lowered in enzyme-deficient mice.

19. PEMT activity is involved in many physiologic processes including the flux of lipid between liver and plasma and the delivery of essential fatty acids to blood and peripheral tissues via the liver-derived lipoproteins

20. This study observed increased numbers of phosphorylated histone H3 positive cells in the Pemt-/- mice (up 54% compared to wild-type mice; p<0.01). We also found decreased calretinin labeling in Pemt-/- (down to 43% compared to wild-type mice; p<0.01).