Chun Kuen Chow

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A relatively rapid procedure is described for the spectrophotometric determination of total tocopherol in red blood cells (RBC) based on a modification of the original Emmerie-Engel reaction. The critical feature in this method is the presence of a large amount of an added antioxidant, pyrogallol or ascorbic acid, during the saponification and extraction(More)
OBJECTIVE This study compared susceptibility to oxidation of low-density lipoproteins (LDL) of non-diabetic and diabetic (Type 2) men and examined the response of diabetic men to antioxidant supplementation (alpha-tocopherol, beta-carotene and ascorbate). RESEARCH DESIGN AND METHODS Twenty adult non-diabetic and 20 diabetic men were recruited. Oxidation(More)
A rapid and sensitive high-performance liquid chromatographic method with fluorescence detection has been devised for the analysis of vitamin A (retinol) and its acetate. The method employs a C18 reversed-phase column and methanol as an eluent. The detection of these two compounds is monitored with fluorescence excitation at 348 nm and emission at 470 nm.(More)
CONCLUSIONS Subjects with cochlear ossification derived benefits in terms of speech performance similar to those of the non-ossified group. It is thus recommended that the insertion of short electrode arrays should be considered an alternative choice for patients with cochlear ossification. OBJECTIVE Cochlear ossification has been recognized as a major(More)
Boric acid has been used for over 20 years to preserve urine while in transit for bacteriological examination. It has been suggested that it may be toxic for some urinary pathogens. To investigate this several strains of bacteria and fungi commonly found in urine were exposed to different concentrations of boric acid in nutrient broth. Viable counts were(More)
Iatrogenic internal carotid artery aneurysm is a rare complication of irradiation. There are few reported cases in the literature. A case of radiation-induced petrous internal carotid artery aneurysm in a patient with nasopharyngeal cancer treated with radiotherapy is reported. The approach to managing such an aneurysm is discussed.
A 55-year-old Chinese woman presented with a 3-week history of unilateral left-sided epistaxis and nasal obstruction. She had swam in a freshwater stream 1 month prior to the onset of symptoms. Endoscopic examination revealed a live leech at the left middle meatus with a large part of its body inside the left maxillary antrum. Local anaesthetic was applied(More)
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