Cheuk-Sing Choy

Learn More
PURPOSE This study evaluated the arsenic methylation profile of adolescents and explored the influence of body mass index (BMI) on the arsenic methylation profile of adolescents in an area of Taiwan with no-obvious arsenic exposure. METHODS This study evaluated 202 normal weight students and 101 obese students from eight elementary schools, recruited from(More)
BACKGROUND Safflower, whose botanic name is Carthamus tinctorius L., is a member of the family Compositae or Asteraceae. Carthamus yellow (CY) is the main constituent of safflower and is composed of safflomin A and safflomin B. Dried safflower petals are used in folk medicine and have been shown to invigorate blood circulation, break up blood stasis, and(More)
Vascular inflammatory process has been suggested to play a key role in the initiation and progression of atherosclerosis, a major complication of diabetes mellitus. Recent studies have shown that brazilin exhibits antihepatotoxic, antiplatelet, cancer preventive, or anti-inflammatory properties. Thus, we investigated whether brazilin suppresses vascular(More)
OBJECTIVES To elucidate a novel anti-inflammatory mechanism of myrrh against lipopolysaccharide (LPS)-induced inflammation. METHODS RAW264.7 macrophages were cultured in DMEM and then cells were treated with LPS or LPS plus a myrrh methanol extract (MME) for 24h. The culture medium was collected for determination of nitric oxide (NO), prostaglandin(More)
BACKGROUND Familial hemiplegic migraine (FHM) is a rare type of migraine. Correct diagnosis is challenging for emergency physicians (EPs) due to its variable clinical picture, as well as its lack of diagnostic biological markers. OBJECTIVES To raise awareness among EPs regarding FHM's diverse clinical picture, and to highlight FHM's diagnostic criteria to(More)
Sanguis Draconis (SD) is a kind of dragon's blood resin that is obtained from Daemomorops draco (Palmae). It is used in traditional medicine and has shown anti-inflammatory activity in some diseases. In this study, we examined the effects of Sanguis Dranonis ethanol extract (SDEE) on LPS-induced inflammation using RAW 264.7 cells. Our data indicated that(More)
OBJECTIVE To review the clinical features and management of patients with injuries related to the Chinese cobra (Naja atra). DESIGN Retrospective study. SETTING Two acute hospitals in Hong Kong. MAIN OUTCOME MEASURES The nature of injuries, envenoming features, complications, response to antivenom therapy, and outcome. RESULTS Eighteen patients were(More)
Brazilin, the main constituent of Caesalpinia sappan L., is a natural red pigment that has been reported to possess anti-inflammatory properties. This study aimed to identify a novel anti-inflammatory mechanism of brazilin. We found that brazilin did not cause cytotoxicity below 300 microM, and activated heme oxygenase-1 (HO-1) protein synthesis in a(More)
UNLABELLED Under the safety net of hospital-based patient safety informatics (PSI) system, RFID is build to adapt emergency department safety needs and the process improvement activities. We implemented the RFID framework as the electronic patient identifier into the process improvement of ED workflow; it defined as the safety portal to introduce PSI safety(More)
BACKGROUND Increasing childhood obesity has become a major health threat. This cross-sectional study reports associations between schoolchildren's waist circumference (WC) and risk of elevated blood pressure. METHODS We measured height, weight, neck and waist circumference, and blood pressure in regular health examinations among children in grade 1 (ages(More)