1.Hydrocarbon-degradation by isolate Pseudomonas lundensis UTAR FPE2
Adeline, S. Y. Ting ; Carol, H. C. Tan ; Aw, C. S.
Malaysian Journal of Microbiology 2009;5(2):104-108
In this study, the potential of isolate Pseudomonas lundensis UTAR FPE2 as a hydrocarbon degrader was established.
Their biodegradation activity was first detected with the formation of clearing zones on Bushnell-Hass agar plates, with
the largest diameter observed on plates supplemented with paraffin, followed by mineral oil and petrol. Utilization of
hydrocarbon sources were again detected in broth cultures supplemented with similar hydrocarbon substrates, where
the mean viable cell count recovered from hydrocarbon-supplemented broth cultures were higher than the initial
inoculum except for napthalene. In both tests, the isolate showed higher degradability towards aliphatic hydrocarbon
sources, and the least activity towards the aromatic hydrocarbon naphthalene. The isolate P. lundensis UTAR FPE2 (8 log10 cfu/mL) also degraded crude diesel sample, with 69% degradation during the first three days. To conclude, this study suggests the potential use of this isolate for bioremediation of hydrocarbon-contaminated environments.
2.Lowering Dietary Glycaemic Index through NutritionEducation among Malaysian Women with a History of Gestational Diabetes Mellitus
Sangeetha-Shyam ; Fatimah A ; Rohana AG ; Norasyikin AW ; Karuthan C ; Nik Shanita S ; Mohd Yusof BN ; Nor Azmi K
Malaysian Journal of Nutrition 2013;19(1):9-23
Introduction: Gestational diabetes mellitus (GDM) increases risks for type 2
diabetes and cardiovascular diseases. Low glycaemic index (GI) diets improve
cardio-metabolic outcomes in insulin-resistant individuals. We examined the
feasibility of lowering GI through GI-based-education among Asian post-GDM
women. Methods: A 3-month investigation was carried out on 60 Malaysian
women with a mean age of 31.0±4.5 years and a history of GDM. Subjects were
randomised into two groups: LGIE and CHDR. The CHDR group received
conventional healthy dietary recommendations only. The LGIE group received
GI based-education in addition to conventional healthy dietary recommendations.
At baseline and after 3-months, dietary intake of energy and macronutrient
intakes including GI diet and glycaemic load was assessed using 3-day food
records. Diabetes-Diet and GI-concept scores and physical activity levels were
assessed using a questionnaire. Adherence to dietary instructions was measured
at the end of 3 months. Results: At the end of 3 months, the LGIE group had
significant reductions in energy intake (241.7±522.4Kcal, P=0.037, ES=0.463), total
carbohydrate (48.7±83.5g, P=0.010, ES=0.583), GI (3.9±7.1, P=0.017, ES=0.549) and
GL (39.0±55.3, P=0.003, ES=0.705) and significant increases in protein (3.7±5.4g,
0.003, ES=0.685) and diet fibre (4.6±7.3g, P=0.06). The CHDR group had a significant
reduction in fat only (5.7±9.4g, P=0.006, ES=0.606). There was a 30% increase in
GI-concept scores in the LGIE group (p< 0.001). Changes in GI-concept scores
correlated significantly to the reduction in dietary GI (r = -0.642, P=0.045). Dietary
adherence was comparable in both groups. Conclusion: GI-education improves
GI-concept knowledge and helps lower dietary glycaemic index among women
with a history of GDM.
3.A Double-Blind, Randomised, Placebo-Controlled Trial of EMLA® Cream (Eutectic Lidocaine/Prilocaine Cream) for Analgesia Prior to Cryotherapy of Plantar Warts in Adults.
Siew Hui LEE ; Janthorn PAKDEETHAI ; Matthias P H S TOH ; Derrick C W AW
Annals of the Academy of Medicine, Singapore 2014;43(10):511-514
INTRODUCTIONCryotherapy with liquid nitrogen is an effective, safe and convenient form of treatment for plantar warts. EMLA® cream (eutectic mixture of lidocaine 2.5% and prilocaine 2.5%) is a topical local anaesthetic agent that has proven to be effective and well tolerated in the relief of pain associated with various minor interventions in numerous clinical settings.
MATERIALS AND METHODSIn a single-centre, double-blind, randomised placebo-controlled study, 64 subjects were randomised into 2 groups. The subjects had a thick layer of EMLA® cream or placebo cream applied to pared plantar wart(s) and onto the surrounding margin of 1 mm to 2 mm under occlusion for 60 minutes prior to receiving cryotherapy. The pain of cryotherapy was evaluated by the subjects using a self-administered Visual Analogue Scale (VAS) immediately after the cryotherapy.
RESULTSThere was no statistical difference between the mean VAS score for EMLA® cream (47.0 ± 21.4 mm) and placebo (48.9 ± 22.0 mm). Those with more than 1 wart had a significantly higher VAS score than those with only 1 wart (59.1 ± 21.8 vs. 44.3 ± 20.4, P <0.05) but this did not affect the therapeutic effect of EMLA® cream prior to cryotherapy.
CONCLUSIONWe conclude that the application of EMLA® cream prior to cryotherapy does not reduce the pain associated with cryotherapy.
Adult ; Analgesia ; Anesthetics, Local ; therapeutic use ; Cryotherapy ; Double-Blind Method ; Female ; Foot Dermatoses ; therapy ; Humans ; Lidocaine ; therapeutic use ; Male ; Middle Aged ; Ointments ; Prilocaine ; therapeutic use ; Warts ; therapy ; Young Adult
5.Lamotrigine-induced Stevens-Johnson syndrome and toxic epidermal necrolysis in Singapore: A case series.
Laura L Y HUI ; Celine LOKE ; Derrick C W AW ; Liesbet TAN ; Lie Michael George LIMENTA ; Meixin SHEN ; Ee Chee REN ; Dorothy S L TOH ; Edmund Jon Deoon LEE ; Shiu Ming PANG
Annals of the Academy of Medicine, Singapore 2021;50(12):915-918