Willingness-to-pay for monorail services: Case study in Penang, Malaysia

The main objective of this study is to examine the determinants of consumers’ willingness to-pay for monorail transportation in Penang (Malaysia). Cross sectional primary survey data with a total of 498 respondents is used for the analysis via a censored regression model.The results demonstrate that habit of recycling, experience in using urban rail-based transportation and problems of insufficient car parks have the significant effects on the willingness-to-pay for a trip of monorail to travel to work. Whereas, age, gender, ethnicity, income, education and personal perspective on public transportation system are found to have no significant impact on the willingness-to-pay for a trip of monorail to travel to work Based on these findings, several policies are recommended

Comparison of feeding practices, eating behaviors and dietary intake between children with Autism Spectrum Disorder of different body weight status in Sarawak

Individuals with Autism Spectrum Disorder (ASD) are a nutritionally vulnerable population. To date, information on nutritional status and dietary intake of Malaysian children with ASD is scarce. This cross-sectional study aimed to compare parental feeding practices, child eating behaviors, and dietary intake between children with ASD of different body weight status from 16 autism intervention centers in Sarawak. A total of 124 children (83.9% males and 16.1% females) aged 2 to 11 years and their mothers were recruited using convenience sampling. Mothers were interviewed to obtain information on parental feeding practices and child eating behaviors. Anthropometric measurements including weight and height were measured by the researcher. Dietary intake was assessed using food diary and nutrient intakes were compared with the Malaysian Recommended Nutrient Intakes (RNI). The prevalence of at risk of overweight (4.8%), overweight (16.9%), and obesity (20.2%) was higher than that of thinness (3.2%). Inadequate intake of energy (33.9%), calcium (90.3%), vitamin C (37.9%), vitamin A (52.4%), and vitamin D (93.5%) was reported among children with ASD. Mothers with overweight/obese children reported higher scores in perceived child weight (p<0.001), concern about child weight (p=0.003), food responsiveness (p=0.001), emotional over-eating (p=0.035), and enjoyment of food (p=0.038) subscales as compared to their counterparts with normal weight. Overweight/obese children with ASD consumed more energy, fat, and iron than normal weight children with ASD (p<0.05). Children with ASD in this study were prone to overnutrition and nutritional deficiencies. Dietary interventions and trainings on parental feeding practices should be included in the intervention programmes by the autism intervention centers to improve feeding practices, eating behaviors, and nutrient intakes of children with ASD

Chemopreventive potential of methanol extract of Dicranopteris linearis leaf on DMBA/croton oil-induced mouse skin carcinogenesis.

The present study was carried out to elucidate the chemopreventive potential of methanol extract of Dicranopteris linearis (MEDL) in a two-stage mouse skin carcinogenesis model due to the interrelated inflammation, oxidative stress and tumor promotion pathways. MEDL was prepared in a dose range of 30 to 300 mg/kg body weight. A total of 48 imprinting control region (ICR) female mice (6 to 8 weeks old) were randomly assorted into six groups. To induce skin tumor formation, a single topical application of 7,12-dimethylbenz[a]anthracene (DMBA) at 100 μg/100 μl was applied to the shaved dorsal region of mice, followed by repetitive administration of 1% croton oil, twice weekly for 15 weeks. Topical application of MEDL, 30 min prior to the croton oil application significantly reduced the tumor incidence to 12.5% in 300 mg/kg MEDL-treated group as compared to 87.5% in carcinogen control. The latency period of tumor formation was increased from sixth week in the carcinogen control to ninth and fifteenth weeks in 100 and 300 mg/kg MEDL-treated groups, respectively. The tumor burden of MEDL-treated groups (30, 100, and 300 mg/kg) were significantly lessen (5.67 ± 1.28, 5.00 ± 1.13, and 1.00 ± 0.13), as compared to carcinogen control (7.86 ± 2.37). The tumor volume was also significantly reduced from 9.00 ± 2.27 mm3 in carcinogen control to 3.70 ± 0.96, 2.39 ± 0.54 and 0.26 ± 0.03 mm3 in 30, 100 and 300 mg/kg MEDL-treated groups, respectively. In conclusion, the MEDL exhibited anti-carcinogenic effect in a dose-dependent manner, indicating its chemopreventive potential, which worth further study

ENGINEERING CONCEPTS IN ANALYSING LUMBOSACRAL LOAD IN POST-OPERATIVE SCOLIOTIC PATIENTS

Lumbosacral alignment plays a major role in the mechanical low back pain in normal population. Malalignment causes increased strain to the muscles and ligaments around it which eventually leads to mechanical low back pain and discomfort. The level of strain a ligament receives in the lumbosacral junction depends upon the lumbosacral angle and the load exerted on it. If there is an easy way to find the load exerted at the lumbosacral junction, then it would be trouble free for the physicians to examine. Hence, the treatment can be planned accordingly. This study analysis the angle, net force produced and stress faced by the ligaments around the lumbosacral joint in postoperative scoliosis patients using radiographic images. Study design was analytical, observational cross sectional study. Radiographs of 30 patients were collected and one sample ‘t ’test was used for data analysis with ‘p ’value set as 0.05 as level of significance .The mean lumbosacral angle of the postoperative scoliotic patients was found to be 45.56 degrees and the standard deviation was ± 8.7156. The results suggest that patients who underwent scoliosis correction surgery did not have an optimal lumbosacral angle of 30 degrees

Generation of induced pluripotent stem (iPS) cells from bone-forming cells

Poster Presentation: P-H012Osteochondroprogenitors uniquely co-expressing Sox9 and Runx2 with dual differentiation potential to become chondrocytes and osteoblasts is an ideal candidate for cell-based therapy. Therefore, developing approaches to generate sufficient amounts of osteochondroprogenitors for skeletal regenerative medicine are essential. Towards this, we take advantage of a reprogramming approach - induced pluripotent stem (iPS) cells generation using osteoblasts. The selection of osteoblasts is based on the hypothesis that it is originally derived from osteochondroprogenitor lineage and the stochastic events of iPS induction might revert osteoblasts first to their progenitor state before becoming pluripotent. Sox9/Runx2 reporter mice will be generated using their regulatory sequences to drive separate drug selection markers (neomycin and blasticidin) and two fluorescence proteins (eYFP and mCherry) for identification and selection of osteochondroprogenitors during reprogramming.postprintThe 2011 Hong Kong Inter-University Biochemistry Postgraduate Symposium, Hong Kong, 11 June 2011

Dataset on gene expression in the elderly after Mindfulness Awareness Practice or Health Education Program

It has been reported that relaxation techniques can improve physical health and cognitive function. A number of studies involving different types of relaxation practices showed changes in expression of genes. We investigated the gene expression pattern of a cohort of elderly subjects of Asian descent after weekly (for the first three months) and monthly (for the subsequent six months) intervention. Sixty consenting elderly subjects (aged 60–90 years) with mild cognitive impairment were assigned to either the Mindfulness Awareness Practice (MAP) or Health Education Program (HEP) group in a randomized controlled trial to assess the effectiveness of the programs in preventing further cognitive decline and evaluate the influence on neurological, cellular and biochemical factors. Blood samples were collected before the start of intervention and after nine months for gene expression profiling using Affymetrix Human Genome U133 Plus 2.0 arrays. The dataset is publicly available for further analyses

Asymmetric localization of DLC1 defines avian trunk neural crest polarity for directional delamination and migration

Following epithelial-mesenchymal transition, acquisition of avian trunk neural crest cell (NCC) polarity is prerequisite for directional delamination and migration, which in turn is essential for peripheral nervous system development. However, how this cell polarization is established and regulated remains unknown. Here we demonstrate that, using the RHOA biosensor in vivo and in vitro, the initiation of NCC polarization is accompanied by highly activated RHOA in the cytoplasm at the cell rear and its fluctuating activity at the front edge. This differential RHOA activity determines polarized NC morphology and motility, and is regulated by the asymmetrically localized RhoGAP Deleted in liver cancer (DLC1) in the cytoplasm at the cell front. Importantly, the association of DLC1 with NEDD9 is crucial for its asymmetric localization and differential RHOA activity. Moreover, NC specifiers, SOX9 and SOX10, regulate NEDD9 and DLC1 expression, respectively. These results present a SOX9/SOX10-NEDD9/DLC1-RHOA regulatory axis to govern NCC migratory polarization.published_or_final_versio