Ng Mien Kwong Ng Ying Kin

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In the present article, we report on two studies performed in young human populations which tested the cognitive impact of glucocorticoids (GC) in situations of decreased or increased ratio of mineralocorticoid (MR) and glucocorticoid (GR) receptor occupation. In the first study, we used a hormone replacement protocol in which we pharmacologically decreased(More)
In a previous longitudinal study of basal cortisol levels and cognitive function in humans, we showed that elderly humans with 4- to 7-yr cumulative exposure to high levels of cortisol present memory impairments, compared with elderly humans with moderate cortisol levels over years. Here, we measured whether memory performance in two groups of elderly(More)
BACKGROUND A short (s) allele in the promoter region of the 5-hydroxytryptamine (5-HT) transporter gene (5HTTLPR) has been associated with low transcription of the 5-HT transporter protein, and with clinical manifestations including impulsivity, affective disorder, and bulimia nervosa. METHODS We studied implications of the 5HTTLPR s allele for eating(More)
Studies have linked bulimia nervosa (BN) to alterations in brain serotonin (5-hydroxytryptamine: 5-HT) activity and to heightened propensity for parasuicidality and self-injuriousness. The coincidence of self-destructiveness and 5-HT abnormality in BN is of interest, given documentation (in various populations) of an inverse association between 5-HT(More)
Moclobemide and nortriptyline were compared with placebo in a double-blind randomized multinational (Canada, Denmark and UK) trial comprising 109 patients of > 60 years of age with major depression (DSM-III-R). Patients were randomized to 7 weeks of treatment with doses of 400 mg/day moclobemide, 75 mg/day nortriptyline or placebo. It was necessary to(More)
Separate lines of research suggest that the functional alterations in the serotonin (5-HT) 2A receptor are associated with 5-HT tone, behavioral impulsiveness, and bulimia nervosa (BN). We explored the effect of allelic variations within the 5-HT2A receptor gene promoter polymorphism -1438G/A on trait impulsiveness and serotonin function in women with BN.(More)
We recently reported that, among bulimic women, previously abused carriers of the 5HTTLPR S allele showed special propensities towards novelty seeking (implying recklessness or impulsivity) and interpersonal insecurity. We subsequently re-analyzed our data, to examine the bearing of the 5HTTLPR polymorphism and prior sexual or physical maltreatment upon(More)
Microvessels, predominantly capillaries, were isolated from rat cerebrum by a modification of published procedures. The morphology and purity of the preparations were monitored by light and electron microscopy and by enrichment in alkaline phosphatase, gamma-glutamyl transpeptidase, and prostacyclin, synthetase. A reversed-phase high-pressure liquid(More)
Long-chain polyisoprenoid alcohols (dolichols) increase more than tenfold from age 5 to 80 years in human cerebral cortex. The dolichol content of brain from infantile, late infantile, and juvenile forms of neuronal ceroid lipofuscinosis (NCL) was significantly higher than in age-matched patients with other neurologic diseases. Significant increase of(More)