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Articles by Helen Wong
Total Records ( 2 ) for Helen Wong
  Nita Chahal , Helen Wong , Cedric Manlhiot and Brian W. McCrindle


Although therapeutic lifestyle changes are first-line measures in treating pediatric dyslipidemia, current didactic approaches for healthy lifestyle education are weakened by low adherence and poor sustainability. A collaborative education program including a clinician-led group education class with motivational counseling complemented by the addition of peer role models was implemented.


We sought to assess the effectiveness of motivational interviewing in collaboration with peers sharing their experience and its impact on serologic and lifestyle measures vs the conventional, didactic group education approach.


Changes in lipid profiles, anthropometric measurements, nutritional scores, physical activity levels, and daily screen time after 6 months were compared both within groups and between the collaborative and the didactic approach.


We reviewed 75 children ages 11.1 ± 3.5 years (n = 38 didactic/n = 37 collaborative). There were no group differences at baseline. Total cholesterol (5.79 ± 1.65 mmol/L vs 5.52 ± 1.39 mmol/L, P = .02) significantly decreased between the initial visit and the 6-month follow-up assessment with both approaches. Nutrition compliance scores significantly improved with both approaches (median: 5.3/10 vs 6.6/10, P = .004), with a marginally greater improvement for the collaborative (+1.7/10) vs the didactic approach (+1.0/10, P = .12). The collaborative approach was associated with greater reductions in weight percentile (−8.9% vs +1.8%, P = .03) and screen time (−7.0 h/wk vs +1.3 h/wk, P = .05) and a greater increase in physical activity (+4.0 h/wk vs +2.0 h/wk, P = .05).


Although not associated with differences in lipid profiles, the collaborative educational approach was associated with a greater lifestyle improvement than was the didactic approach over a 6-month period.

  Marcia D. Antion , Lingfei Hou , Helen Wong , Charles A. Hoeffer and Eric Klann
  Metabotropic glutamate receptor-dependent long-term depression (mGluR-LTD) in the hippocampus requires rapid protein synthesis, which suggests that mGluR activation is coupled to signaling pathways that regulate translation. Herein, we have investigated the signaling pathways that couple group I mGluRs to ribosomal S6 protein phosphorylation and 5’oligopyrimidine tract (5’TOP)-encoded protein synthesis during mGluR-LTD. We found that mGluR-LTD was associated with increased phosphorylation of p70S6 kinase (S6K1) and S6, as well as the synthesis of the 5’TOP-encoded protein elongation factor 1A (EF1A). Moreover, we found that LTD-associated increases in S6K1 phosphorylation, S6 phosphorylation, and levels of EF1A were sensitive to inhibitors of phosphoinositide 3-kinase (PI3K), mammalian target of rapamycin (mTOR), and extracellular signal-regulated kinase (ERK). However, mGluR-LTD was normal in S6K1 knockout mice and enhanced in both S6K2 knockout mice and S6K1/S6K2 double knockout mice. In addition, we observed that LTD-associated increases in S6 phosphorylation were still increased in S6K1- and S6K2-deficient mice, whereas basal levels of EF1A were abnormally elevated. Taken together, these findings indicate that mGluR-LTD is associated with PI3K-, mTOR-, and ERK-dependent alterations in the phosphorylation of S6 and S6K. Our data also suggest that S6Ks are not required for the expression of mGluR-LTD and that the synthesis of 5’TOP-encoded proteins is independent of S6Ks during mGluR-LTD.
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