Methods: The assay system utilized a known NS2B/NS3 peptide substrate, a recombinant of NS2B/NS3 protease with proprietary StrepTactin® donor and nickel chelate acceptor beads in 384-well format.
Results: The optimized assay to screen for NS2B/NS3 protease inhibitors was demonstrated to be potentially useful with reasonable z' factor, coefficient variance and signal to background ratio. However, screening of synthesized thioguanine derivatives using the optimized AlphaScreen® assay revealed weak NS2B/NS3 inhibition activities.
Conclusion: The AlphaScreen® assay to screen for NS2B/NS3 protease inhibitors is potentially applicable for high throughput screening.
METHODS: A total of 1210 participants 60 years and above, representing the three main ethnic groups were recruited from a larger cohort study. Weighted factors valued for comparison included socio demographics and health status. Knowledge of and attitude and behaviour towards personal oral health were also assessed. Dentition status, adapted from WHO oral health guidelines, was the dependent variable investigated. Data were analysed using descriptive chi square test and multivariate binary logistic regression.
RESULTS: Overall, 1187 respondents completed the study. The dentition status and oral health related knowledge, attitude and behaviour varied between the three ethnic groups. The Chinese were significantly less likely to have ≥13 missing teeth (OR = 0.698, 95% CI: 0.521-0.937) and ≥1 decayed teeth (0.653; 0.519-0.932) compared to the Malays, while the Indians were significantly less likely than the Malays to have ≥1 decayed teeth (0.695; 0.519-0.932) and ≥2 filled teeth (0.781; 0.540-1.128).
CONCLUSION: Ethnic differences in dentition outcome are related to oral health utilization highlighting the influence of cultural differences and the need for culturally sensitivity interventions.
DESIGN/METHODOLOGY/APPROACH: This cross-sectional study comprised 252 patients visiting HUSM. Patients were selected using the convenience sampling method. The PGQ (Bahasa Melayu version) had three main factors: during your visit; your care provider and overall assessment. Data were analyzed using the structural equation modeling.
FINDINGS: The exploratory factor analysis resulted in item reduction from 21 to 17, which contained four factors with eigenvalues greater than 1. Meanwhile, confirmatory factor analysis results showed that data fitted the model: χ2/df at 1.764, comparative fit index at 0.952, Tucker-Lewis index at 0.941 and root mean square error of approximation at 0.073. The average variance extracted value for the four factors was greater than 0.50, which indicated that PGQ convergent validity was met. Overall, PGQ produced good reliability with composite reliability score equals to 0.966. Four factors were reclassified as "during your registration," "hospital staff attitude," "doctor's attitude" and "overall assessment."
RESEARCH LIMITATIONS/IMPLICATIONS: Patient satisfaction is an important and frequently used indicator for measuring healthcare quality; hence, a validated and reliable instrument is important for measuring patient satisfaction that leads to healthcare service quality assessment.
PRACTICAL IMPLICATIONS: Validated PGQ provides some useful information for doctors, medical assistants, nurses and staff in the emergency department to help them become more prominent and efficient in their role as healthcare providers.
SOCIAL IMPLICATIONS: Validated PGQ will help healthcare providers to deliver the best and exceptional care toward emergency patient, and thus improve their quality of work life. The findings in this study can be used as a guide or as baseline data for further research in this area.
ORIGINALITY/VALUE: The PQG (Bahasa Melayu version) was confirmed as a reliable and valid instrument for measuring patient satisfaction. This research is the first PGQ validation study in Southeast Asia, specifically focusing on Malaysian respondents.
OBJECTIVE: This study investigates the effect of methanol extract of M. calabura leaves (MMCL) on hepatic antioxidant and anti-inflammatory activities in CCl4-induced hepatotoxic rat.
MATERIALS AND METHODS: Sprague Dawley rats (n = 6) were treated (p.o.) with 10% DMSO (Groups 1 and 2), 50 mg/kg N-acetylcysteine (Group 3) or, 50, 250, or 500 mg/kg MMCL (Groups 4-6) for 7 consecutive days followed by pretreatment (i.p.) with vehicle (Group 1) or 50% CCl4 in olive oil (v/v) (Groups 2-6) on day 7th. Plasma liver enzymes and hepatic antioxidant enzymes and pro-inflammatory cytokines concentrations were measured while liver histopathology was examined.
RESULTS: MMCL, at 500 mg/kg, significantly (p
Material and Methods: In this study, we have introduced a new technique to reduce the motion artifacts, based on data binning and low rank plus sparse (L+S) reconstruction method for DCE MRI. For Data binning, radial k-space data is acquired continuously using the golden-angle radial sampling pattern and grouped into various motion states or bins. The respiratory signal for binning is extracted directly from radially acquired k-space data. A compressed sensing- (CS-) based L+S matrix decomposition model is then used to reconstruct motion sorted DCE MR images. Undersampled free breathing 3D liver and abdominal DCE MR data sets are used to validate the proposed technique.
Results: The performance of the technique is compared with conventional L+S decomposition qualitatively along with the image sharpness and structural similarity index. Recovered images are visually sharper and have better similarity with reference images.
Conclusion: L+S decomposition provides improved MR images with data binning as preprocessing step in free breathing scenario. Data binning resolves the respiratory motion by dividing different respiratory positions in multiple bins. It also differentiates the respiratory motion and contrast agent (CA) variations. MR images recovered for each bin are better as compared to the method without data binning.
METHODS: Knee image is first oversegmented to produce homogeneous superpixels. Then, a ranking model is developed to rank the superpixels according to their affinities to standard priors, wherein background superpixels would have lower ranking values. Finally, seed labels are generated on the background superpixel using Fuzzy C-Means method.
RESULTS: SAGE has achieved better interobserver DSCs of 0.94 ± 0.029 and 0.93 ± 0.035 in healthy and OA knee segmentation, respectively. Good segmentation performance has been reported in femoral (Healthy: 0.94 ± 0.036 and OA: 0.93 ± 0.034), tibial (Healthy: 0.91 ± 0.079 and OA: 0.88 ± 0.095) and patellar (Healthy: 0.88 ± 0.10 and OA: 0.84 ± 0.094) cartilage segmentation. Besides, SAGE has demonstrated greater mean readers' time of 80 ± 19 s and 80 ± 27 s in healthy and OA knee segmentation, respectively.
CONCLUSIONS: SAGE enhances the efficiency of segmentation process and attains satisfactory segmentation performance compared to manual and random walks segmentation. Future works should validate SAGE on progressive image data cohort using OA biomarkers.
PURPOSE: This study explores the menstrual experiences of people with DSD and sex reassignment in Nigeria.
METHODS: A qualitative approach with a phenomenological study design was employed in this study to explore and describe the experiences of people with DSD at the Usmanu Danfodiyo University Teaching Hospital in Sokoto, Nigeria. The data were collected using face-to-face interviews, transcribed verbatim, and analyzed using NVivo software.
RESULTS: The findings show that the participants experienced menstrual problems: men with menstruation and women with amenorrhea. The female participants generally described amenorrhea as a disappointment and linked menstruation with womanhood. Amenorrhea evinced both emotional and psychological effects. However, some of the female participants considered amenorrhea in a positive light and were happy with their lives without menstruation. The menstrual experiences of male participants included menarche, lower abdominal pain, regular monthly bleeding, and ovulation. The male participants described menstruation as a disaster in their lives and a source of anxiety, suicidal ideation, and depression. Menstruation negatively affected their psychosocial well-being.
CONCLUSIONS: The menstrual experience of individuals with DSD negatively affects their quality of life. The women with DSD in this study showed a generally poor knowledge of menarche, menstruation, and puberty, indicating that their parents had ignored the initial symptoms of DSD. DSD were only recognized at puberty because of the development of ambiguous physical traits and of the onset of menstruation in men and the confirmation of amenorrhea in women.