16 research outputs found
Electronic transaction of internet banking and its perception of Malaysian online customers
The purpose of this research is to find out significant factors of consumers’ perception on e-banking transaction by Malaysian bank consumers. The study utilizes a combination of theoretical frameworks and quantitative techniques o testify the statistical relationships between consumer perceptions on e-banking transaction. Meanwhile factor analysis was performed to extraction and make initial decision on the number of factors underlying asset of measured variables of interest. Thereafter structural equation mode (SEM) was estimated to anticipate the effects of the explanatory variables. This study shows that only protected transaction, have significant impact on consumers’ perception about e-banking security, followed by service quality and regulatory frame work issues. This study is the first that seeks to ascertain the insight into e-banking in Malaysia, which has not been previously been investigated and much statistical significance makes this study a potential cornerstone for future research. Therefore, this study thus sets an important benchmark for further research in the area
High resolution 0.5mm isotropic T1-weighted and diffusion tensor templates of the brain of non-demented older adults in a common space for the MIITRA atlas
High quality, high resolution T1-weighted (T1w) and diffusion tensor imaging (DTI) brain templates located in a common space can enhance the sensitivity and precision of template-based neuroimaging studies. However, such multimodal templates have not been constructed for the older adult brain. The purpose of this work which is part of the MIITRA atlas project was twofold: (A) to develop 0.5 mm isotropic resolution T1w and DTI templates that are representative of the brain of non-demented older adults and are located in the same space, using advanced multimodal template construction techniques and principles of super resolution on data from a large, diverse, community cohort of 400 non-demented older adults, and (B) to systematically compare the new templates to other standardized templates. It was demonstrated that the new MIITRA-0.5mm T1w and DTI templates are well-matched in space, exhibit good definition of brain structures, including fine structures, exhibit higher image sharpness than other standardized templates, and are free of artifacts. The MIITRA-0.5mm T1w and DTI templates allowed higher intra-modality inter-subject spatial normalization precision as well as higher inter-modality intra-subject spatial matching of older adult T1w and DTI data compared to other available templates. Consequently, MIITRA-0.5mm templates allowed detection of smaller inter-group differences for older adult data compared to other templates. The MIITRA-0.5mm templates were also shown to be most representative of the brain of non-demented older adults compared to other templates with submillimeter resolution. The new templates constructed in this work constitute two of the final products of the MIITRA atlas project and are anticipated to have important implications for the sensitivity and precision of studies on older adults
Synthesis, characterization and cytotoxicity studies of 1,2,3-triazoles and 1,2,4-triazolo 1,5-a pyrimidines in human breast cancer cells
Vascular endothelial growth factor (VEGF) and its receptor (VEGFR) is essential for physiological functions of tissues and neovasculature. VEGFR signaling is associated with the progression of pathological angiogenesis in various types of malignancies, making it an attractive therapeutic target in cancer treatment. In the present work, we report the synthesis of 1,4-disubstituted 1,2,3-triazoles and 1,2,4-triazolo[1, 5-a]pyrimidine derivatives via copper (I)-catalyzed azide-alkyne cycloaddition (CuAAC) reaction and screened for their anticancer activity against MCF7 cells. We identified 1-(2′-ethoxy-4′-fluoro-[1,1′-biphenyl]-4-yl)-4-phenyl-1H-1,2,3-triazole (EFT) as lead cytotoxic agent against MCF7 cell lines with an IC50 value of 1.69 µM. Further evaluation revealed that EFT induces cytotoxicity on Ishikawa, MDA-MB-231 and BT474 cells with IC50 values of 1.97, 4.81 and 4.08 µM respectively. However, EFT did not induce cytotoxicity in normal lung epithelial (BEAS-2B) cells. Previous reports suggested that 1,2,3-triazoles are the inhibitors of VEGFR1 and therefore, we evaluated the effect of EFT on the expression of VEGFR1. The results demonstrated that EFT downregulates the expression of VEGFR1 in MCF7 cells. In summary, we identified a potent cytotoxic agent that imparts its antiproliferative activity by targeting VEGFR1 in breast cancer cells. The novel compound could serve as a lead structure in developing VEGFR1 inhibitors
Effects of ondansetron alone and in combination with domperidone in the prevention of chemotherapy-induced nausea and vomiting in breast cancer patients
The efficacy and safety of ondansetron, administered alone and in combination with domperidone to prevent chemotherapy-induced nausea and vomiting of breast cancer patients receiving chemotherapy FAC regimen (5-fluorouracil, adriamycin and cyclophosphamide) were evaluated. A consecutive open-label interventional study was conducted on a total number of 86 female breast cancer patients who were receiving chemotherapy. Forty two patients received ondansetron (8 mg) intravenously 30 min before chemotherapy which is followed by ondansetron (8 mg) administered orally every 8 hourly for 2 days from the day of start of chemotherapy. Another 44 patients received ondansetron (8 mg) intravenously 30 min before chemotherapy followed by ondansetron (8 mg) plus domperidone (20 mg) administered orally 8 hourly for 48 hours from the day of start of chemotherapy. The number of emetic episodes, severity of nausea, assessment of appetite and adverse events were recorded at 8 hour intervals for two days study period using specific scoring criteria. Ondansetron in combination with domperidone significantly decreased the chemotherapy-induced nausea and vomiting in comparison with ondansetron administered alone (P<0.001). Appetite status was good with combination therapy (P<0.001). Improvement in appetite indicates that ondansetron plus domperidone exert protective effect against nausea and maintain normal appetite, while patients who were getting monotherapy experience loss of appetite. The common adverse event, headache was present in both the groups. No extrapyramidal reaction was observed in any group. This study showed that ondansetron plus domperidone exert more pronounced antiemetic effect in patients with breast cancer receiving moderately emetogenic chemotherapy (FAC regimen) with good appetite status and less adverse effect
Recommended from our members
Excess Mortality With Alzheimer Disease and Related Dementias as an Underlying or Contributing Cause During the COVID-19 Pandemic in the US.
ImportanceAdults with Alzheimer disease and related dementias (ADRD) are particularly vulnerable to the direct and indirect effects of the COVID-19 pandemic. Deaths associated with ADRD increased substantially in pandemic year 1. It is unclear whether mortality associated with ADRD declined when better prevention strategies, testing, and vaccines became widely available in year 2.ObjectiveTo compare pandemic-era excess deaths associated with ADRD between year 1 and year 2 overall and by age, sex, race and ethnicity, and place of death.Design, setting, and participantsThis time series analysis used all death certificates of US decedents 65 years and older with ADRD as an underlying or contributing cause of death from January 2014 through February 2022.ExposureCOVID-19 pandemic era.Main outcomes and measuresPandemic-era excess deaths associated with ADRD were defined as the difference between deaths with ADRD as an underlying or contributing cause observed from March 2020 to February 2021 (year 1) and March 2021 to February 2022 (year 2) compared with expected deaths during this period. Expected deaths were estimated using data from January 2014 to February 2020 fitted with autoregressive integrated moving average models.ResultsOverall, 2 334 101 death certificates were analyzed. A total of 94 688 (95% prediction interval [PI], 84 192-104 890) pandemic-era excess deaths with ADRD were estimated in year 1 and 21 586 (95% PI, 10 631-32 450) in year 2. Declines in ADRD-related deaths in year 2 were substantial for every age, sex, and racial and ethnic group evaluated. Pandemic-era ADRD-related excess deaths declined among nursing home/long-term care residents (from 34 259 [95% PI, 25 819-42 677] in year 1 to -22 050 [95% PI, -30 765 to -13 273] in year 2), but excess deaths at home remained high (from 34 487 [95% PI, 32 815-36 142] in year 1 to 28 804 [95% PI, 27 067-30 571] in year 2).Conclusions and relevanceThis study found that large increases in mortality with ADRD as an underlying or contributing cause of death occurred in COVID-19 pandemic year 1 but were largely mitigated in pandemic year 2. The most pronounced declines were observed for deaths in nursing home/long-term care settings. Conversely, excess deaths at home and in medical facilities remained high in year 2