Displaying publications 61 - 80 of 130 in total

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  1. Ahsan MJ, Choupra A, Sharma RK, Jadav SS, Hassan MZ, Bakht MA, et al.
    PMID: 28425854 DOI: 10.2174/1871520617666170419124702
    We report herein, the synthesis of two new series of oxadiazole analogues, and their cytotoxicity evaluation. The oxadiazole analogues (5a-h and 12a-h) were structurally related to the heterocyclic (1,3,4- oxadiazole) linked aryl core of IMC-038525 (tubulin polymerization inhibitor), NSC 776715, and NSC 776716, with further modification by incorporating methylene linker. The title compounds (5a-h and 12a-h) were synthesized in good yields, and were characterized by IR, NMR, and mass spectral data. The cytotoxicity evaluation was carried out according to the National Cancer Institute (NCI US) Protocol against NCI-60 human cell lines derived from nine different panels. 2-(5-{[(4-Chlorophenyl)amino]methyl}-1,3,4-oxadiazol-2- yl)phenol (5f) showed maximum cytotoxicity among the first series oxadiazoles (5a-h), while 2-[(2,4- dichlorophenoxy)methyl]-5-(3,4-dimethoxyphenyl)-1,3,4-oxadiazole (12c) showed maximum cytotoxicity among the second series oxadiazoles (12a-h), with the mean percen growth inhibitions (GIs) of 71.56 and 72.68 respectively at 10 μM drug concentrations. Both the compounds (5f and 12c) showed superior cytotoxicity than clinically prevalent anticancer drugs, Imatinib and Gefitinib in one dose assay. The compound 12c was further screened in five dose assay (0.01, 0.1, 1, 10 and 100 μM), and the results was found to be promising, with GI50 values varies between 1.61 and >100 μM, with comparatively higher selectivity towards the renal cancer cell lines. Furthermore, the compounds, 5f and 12c inhibited the polymerization of tubulin with, an IC50 of 2.8 and 2.2 μM, respectively.
  2. Loganathan TM, Hameed Sultan MT, Jawaid M, Ahsan Q, Naveen J, Shah AUM, et al.
    Polymers (Basel), 2021 Oct 08;13(19).
    PMID: 34641263 DOI: 10.3390/polym13193448
    Adequate awareness of sustainable materials and eco-legislation have inspired researchers to identify alternative sustainable and green composites for synthetic fiber-reinforced polymer composites in the automotive and aircraft industries. This research focused on investigating the physical, mechanical, and morphological properties of different hybrid Cyrtostachys renda (CR)/kenaf fiber (K) (10C:0K, 7C:3K, 5C:5K, 3C:7K, 0C:10K) reinforced with 0.5 wt% MWCNT-phenolic composites. We incorporated 0.5 wt% of MWCNT into phenolic resin (powder) using a ball milling process for 25 h to achieve homogeneous distribution. The results revealed that CR fiber composites showed higher voids content (12.23%) than pure kenaf fiber composites (6.57%). CR fiber phenolic composite was more stable to the swelling tendency, resulting in the lowest percentage of swelling rate (4.11%) compared to kenaf composite (5.29%). The addition of kenaf fiber into CR composites had improved the tensile, flexural, and impact properties. The highest tensile and flexural properties were found for weight fraction of CR and kenaf fiber at 5C:5K (47.96 MPa) and 3C:7K (90.89 MPa) composites, respectively. In contrast, the highest impact properties were obtained for 0C:10K composites (9.56 kJ/m2). Based on the FE-SEM image, the CR fiber lumen was larger in comparison to kenaf fiber. The lumen of CR fiber was attributed to higher void and water absorption, lower mechanical properties compared to kenaf fiber. 5C:5K composite was selected as an optimal hybrid composite, based on the TOPSIS method. This hybrid composite can be used as an interior component (non-load-bearing structures) in the aviation and automotive sectors.
  3. Hossain MS, Sharfaraz A, Dutta A, Ahsan A, Masud MA, Ahmed IA, et al.
    Biomed Pharmacother, 2021 Nov;143:112182.
    PMID: 34649338 DOI: 10.1016/j.biopha.2021.112182
    Nigella sativa L. is one of the most extensively used traditional medicinal plants. This widely studied plant is known to display diverse pharmacological actions, including antimicrobial activities. Current literature has documented its multi-target mode of antimicrobial actions. N. sativa or its bioactive compounds, such as thymoquinone, can induce oxidative stress, cell apoptosis (by producing reactive oxygen species), increase membrane permeability, inhibit efflux pumps, and impose strong biocidal actions. Despite its well-documented antimicrobial efficacy in the experimental model, to the best of our knowledge its antimicrobial mechanisms highlighting the multi-targeting properties have yet to be well discussed. Is N. sativa or thymoquinone a valuable lead compound for therapeutic development for infectious diseases? Are N. sativa's bioactive compounds potential antimicrobial agents or able to overcome antimicrobial resistance? This review aims to discuss the antimicrobial pharmacology of N. sativa-based treatments. Additionally, it provides a holistic overview of the ethnobotany, ethnopharmacology, and phytochemistry of N. sativa.
  4. Loganathan TM, Sultan MTH, Ahsan Q, Jawaid M, Naveen J, Shah AUM, et al.
    J Therm Anal Calorim, 2022;147(24):14079-14096.
    PMID: 36093037 DOI: 10.1007/s10973-022-11557-4
    Natural fibers have emerged as a potential alternate to synthetic fibers, because of their excellent performance, biodegradability, renewability and sustainability. This research has focused on investigating the thermal, visco-elastic and fire-retardant properties of different hybrid Cytostachys Renda (CR)/kenaf fiber (K) (50/0; 35/ 15, 25/25, 15/ 35, 0/50)-reinforced MWCNT (multi-walled carbon nanotubes)-modified phenolic composites. The mass% of MWCNT-modified phenolic resin was maintained 50 mass% including 0.5 mass% of MWCNT. In order to achieve homogeneous dispersion ball milling process was employed to incorporate the MWCNT into phenolic resin (powder). Thermal results from thermogravimetric analysis and differential scanning calorimetric analysis revealed that the hybrid composites (35/15; 35 mass% CR and 15 mass% K) showed higher thermal stability among the composite samples. Visco-elastic results revealed that kenaf fiber-based MWCNT-modified composites (0/50; 0 mass% CR and 50 mass% K) exhibited higher storage and loss modulus due to high modulus kenaf fiber. Fire-retardant analysis (UL-94) showed that all the composite samples met H-B self-extinguishing rating and exhibited slow burning rate according to limiting oxygen index (LOI) test. However, (15/35; 15 mass% CR and 35 mass% K) hybrid composites showed the highest time to ignition, highest fire performance index, lowest total heat release rate, average mass loss rate, average fire growth rate index and maximum average rate of heat emission. Moreover, the smoke density of all hybrid composites was found to be less than 200 which meets the federal aviation regulations (FAR) 25.853d standard. Technique for Order Preference by Similarity to Ideal Solution (TOPSIS) was carried out to select an optimal composite sample considering the thermal, visco-elastic and fire-retardant behaviors. Through TOPSIS analysis, the hybrid (15/35; 15 mass% CR and 35 mass% K) composite sample has been selected as an optimal composite which can be used for high-temperature aircraft and automotive applications.
  5. Sarker MZ, Selamat J, Habib AS, Ferdosh S, Akanda MJ, Jaffri JM
    Int J Mol Sci, 2012;13(9):11312-22.
    PMID: 23109854 DOI: 10.3390/ijms130911312
    Fish oil was extracted from the viscera of African Catfish using supercritical carbon dioxide (SC-CO(2)). A Central Composite Design of Response Surface methodology (RSM) was employed to optimize the SC-CO(2) extraction parameters. The oil yield (Y) as response variable was executed against the four independent variables, namely pressure, temperature, flow rate and soaking time. The oil yield varied with the linear, quadratic and interaction of pressure, temperature, flow rate and soaking time. Optimum points were observed within the variables of temperature from 35 °C to 80 °C, pressure from 10 MPa to 40 MPa, flow rate from 1 mL/min to 3 mL/min and soaking time from 1 h to 4 h. However, the extraction parameters were found to be optimized at temperature 57.5 °C, pressure 40 MPa, flow rate 2.0 mL/min and soaking time 2.5 h. At this optimized condition, the highest oil yields were found to be 67.0% (g oil/100 g sample on dry basis) in the viscera of catfish which was reasonable to the yields of 78.0% extracted using the Soxhlet method.
  6. Qureshi MA, Noor RM, Shamim A, Shamshirband S, Raymond Choo KK
    PLoS One, 2016;11(3):e0152727.
    PMID: 27031989 DOI: 10.1371/journal.pone.0152727
    Radio propagation models (RPMs) are generally employed in Vehicular Ad Hoc Networks (VANETs) to predict path loss in multiple operating environments (e.g. modern road infrastructure such as flyovers, underpasses and road tunnels). For example, different RPMs have been developed to predict propagation behaviour in road tunnels. However, most existing RPMs for road tunnels are computationally complex and are based on field measurements in frequency band not suitable for VANET deployment. Furthermore, in tunnel applications, consequences of moving radio obstacles, such as large buses and delivery trucks, are generally not considered in existing RPMs. This paper proposes a computationally inexpensive RPM with minimal set of parameters to predict path loss in an acceptable range for road tunnels. The proposed RPM utilizes geometric properties of the tunnel, such as height and width along with the distance between sender and receiver, to predict the path loss. The proposed RPM also considers the additional attenuation caused by the moving radio obstacles in road tunnels, while requiring a negligible overhead in terms of computational complexity. To demonstrate the utility of our proposed RPM, we conduct a comparative summary and evaluate its performance. Specifically, an extensive data gathering campaign is carried out in order to evaluate the proposed RPM. The field measurements use the 5 GHz frequency band, which is suitable for vehicular communication. The results demonstrate that a close match exists between the predicted values and measured values of path loss. In particular, an average accuracy of 94% is found with R2 = 0.86.
  7. Aftab RA, Khan AH, Syed Sulaiman SA, Khan TM, Adnan AS
    Medicine (Baltimore), 2017 Apr;96(14):e6198.
    PMID: 28383400 DOI: 10.1097/MD.0000000000006198
    INTRODUCTION: Volume overload and the renin-aldosterone-angiotensin system (RAAS) are 2 major factors contributing to hypertension (HTN) among hemodialysis (HD) patients. Although volume-dependent components of HTN can be corrected by appropriate volume removal, a proportion of HD patients experience elevated blood pressure (BP) despite achieving euvolemic and ideal dry weight.

    METHOD AND ANALYSIS: A single center, prospective, randomized, parallel design, single-blind trial will be conducted in the Malaysian state of Kelantan among postdialysis euvolemic hypertensive patients that are on regular dialysis at least 3 times a week. The primary outcome of the trial will be to note the effectiveness of losartan (RAAS inhibitor) in reducing systolic BP  140 mm Hg will be randomized using Covariate Adaptive Randomization to standard or treatment arm. Participants in the treatment arm will be given 50 mg of losartan once daily except on dialysis days, whereas the standard arm patients will be prescribed non-RAAS antihypertensive agents. The study participants will be followed for a period of 12 months. A Wilcoxon statistical test will be performed to note the difference in BP from baseline up to 12 months using Statistical Package for the Social Sciences (SPSS) 20.

    ETHICAL AND TRIAL REGISTRATION: The study protocols are approved from the Ethical and Research Committee of the Universiti Sains Malaysia (USM/JEPeM/15050173). The trial is registered under the Australia New Zealand Clinical Trial Registry (ACTRN12615001322527). The trial was registered on 2/12/2015 and the 1st patient was enrolled on 10/12/2015. The trial was formally initiated on 16/02/2016.

    CONCLUSION: Management of HTN among HD patients requires understanding the primary cause of HTN and treating accordingly. The current trial is an attempt to reduce BP among postdialysis euvolemic but hypertensive patients.

  8. Mehmood A, Mubarak NM, Khalid M, Jagadish P, Walvekar R, Abdullah EC
    Sci Rep, 2020 11 18;10(1):20106.
    PMID: 33208815 DOI: 10.1038/s41598-020-77139-2
    Strain sensors in the form of buckypaper (BP) infiltrated with various polymers are considered a viable option for strain sensor applications such as structural health monitoring and human motion detection. Graphene has outstanding properties in terms of strength, heat and current conduction, optics, and many more. However, graphene in the form of BP has not been considered earlier for strain sensing applications. In this work, graphene-based BP infiltrated with polyvinyl alcohol (PVA) was synthesized by vacuum filtration technique and polymer intercalation. First, Graphene oxide (GO) was prepared via treatment with sulphuric acid and nitric acid. Whereas, to obtain high-quality BP, GO was sonicated in ethanol for 20 min with sonication intensity of 60%. FTIR studies confirmed the oxygenated groups on the surface of GO while the dispersion characteristics were validated using zeta potential analysis. The nanocomposite was synthesized by varying BP and PVA concentrations. Mechanical and electrical properties were measured using a computerized tensile testing machine, two probe method, and hall effect, respectively. The electrical conducting properties of the nanocomposites decreased with increasing PVA content; likewise, electron mobility also decreased while electrical resistance increased. The optimization study reports the highest mechanical properties such as tensile strength, Young's Modulus, and elongation at break of 200.55 MPa, 6.59 GPa, and 6.79%, respectively. Finally, electrochemical testing in a strain range of ε ~ 4% also testifies superior strain sensing properties of 60 wt% graphene BP/PVA with a demonstration of repeatability, accuracy, and preciseness for five loading and unloading cycles with a gauge factor of 1.33. Thus, results prove the usefulness of the nanocomposite for commercial and industrial applications.
  9. Aftab RA, Khan AH, Adnan AS, Sulaiman SAS, Khan TM
    Blood Purif., 2019;48(3):233-242.
    PMID: 31387098 DOI: 10.1159/000500997
    AIMS AND OBJECTIVE: To estimate the effect of losartan 50 mg on survival of post-dialysis euvolemic hypertensive patients.

    METHODOLOGY: A single center, prospective, single-blind randomized trial was conducted to estimate the survival of post-dialysis euvolemic hypertensive patients when treated with lorsartan 50 mg every other day. Post-dialysis euvolemic assessment was done by a body composition monitor. Covariate Adaptive Randomization was used for allocation of participants to the standard or intervention arm, and the follow-up duration was twelve months. The primary end point was achieving targeted blood pressure (BP) of <140/90 mm Hg and maintaining for 4 weeks, whereas secondary end point was all cause of mortality. Pre-, intra-, and post-dialysis session BP measurements were recorded, and survival trends were analyzed using Kaplan-Meier analysis.

    RESULTS: Of the total 229 patients, 96 (41.9%) were identified as post-dialysis euvolemic hypertensive. Final samples of 88 (40.1%) patients were randomized into standard (n = 44) and intervention arms (n = 44), and 36 (81.8%) patients in each arm completed a follow-up of 12 months. A total of eight patients passed away during the 12-month follow-up period (6 deaths among standard arm and 2 in intervention arm). However, the probability of survival between both arms was not significant (p = 0.13). Cox regression analysis revealed that chances of survival were higher among the patients in the intervention (OR 3.17) arm than the standard arm (OR 0.31); however, the survival was found not statistically significant.

    CONCLUSION: There was no statistical significant difference in 1 year survival of post-dialysis euvolemic hypertensive patients when treated with losartan 50 mg.

  10. Low HL, Ismail MNBM, Taqvi A, Deeb J, Fuller C, Misbahuddin A
    Clin Neurol Neurosurg, 2019 Oct;185:105466.
    PMID: 31466022 DOI: 10.1016/j.clineuro.2019.105466
    OBJECTIVE: To compare posterior subthalamic area deep brain stimulation (PSA-DBS) performed in the conventional manner against diffusion tensor imaging and tractography (DTIT)-guided lead implantation into the dentatorubrothalamic tract (DRTT).

    PATIENTS AND METHODS: Double-blind, randomised study involving 34 patients with either tremor-dominant Parkinson's disease or essential tremor. Patients were randomised to Group A (DBS leads inserted using conventional landmarks) or Group B (leads guided into the DRTT using DTIT). Tremor (Fahn-Tolosa-Marin) and quality-of-life (PDQ-39) scores were evaluated 0-, 6-, 12-, 36- and 60-months after surgery.

    RESULTS: PSA-DBS resulted in marked tremor reduction in both groups. However, Group B patients had significantly better arm tremor control (especially control of intention tremor), increased mobility and activities of daily living, reduced social stigma and need for social support as well as lower stimulation amplitudes and pulse widths compared to Group A patients. The better outcomes were sustained for up to 60-months from surgery. The active contacts of Group B patients were consistently closer to the centre of the DRTT than in Group A. Speech problems were more common in Group A patients.

    CONCLUSION: DTIT-guided lead placement results in better and more stable tremor control and fewer adverse effects compared to lead placement in the conventional manner. This is because DTIT-guidance allows closer and more consistent placement of leads to the centre of the DRTT than conventional methods.

  11. Amanullah I, Khan YH, Anwar I, Gulzar A, Mallhi TH, Raja AA
    Postgrad Med J, 2019 Nov;95(1129):601-611.
    PMID: 31434683 DOI: 10.1136/postgradmedj-2018-136364
    The efficacy of vitamin E among patients with non-alcoholic fatty liver disease (NAFLD) is unclear. The current qualitative and quantitative analyses aimed to ascertain the efficacy of vitamin E on clinical outcomes of patients with NAFLD. A systematic search of randomised controlled trials (RCTs) was performed using databases (PubMed, ProQuest, Scopus, EBSCOhost and Ovid) from inception to July 2018. Trials meeting the inclusion criteria were subjected to quality assessment using the Jadad Scoring. All trials meeting the prerequisites information for meta-analysis were subjected to quantitative synthesis of results. Nine RCTs (five in adults and four in children) were included. Four of the five RCTs on adults demonstrated significant improvements in alanine transaminase and other liver function surrogates in patients with NAFLD. On the other hand, only one of the four RCTs conducted on children showed significant improvements in liver functions with the use of vitamin E. Although quantitative synthesis of available data revealed insignificant differences between vitamin E and placebo, still the use of vitamin E improves the level of alanine transaminase and aspartate transaminase by -1.96 and -0.59, with heterogeneity of I2=67% and I2=0%, respectively. Adjuvant vitamin E therapy provides significant biochemical and histological improvements in adult patients with NAFLD, while paediatric patients showed insignificant efficacy compared with placebo. Lifestyle interventions along with vitamin E can provide much better results. Data, including the impact of vitamin E on hepatic histology, are still lacking. Moreover, the short duration of trials limits the conclusion on the safety and efficacy of proposed treatments.
  12. Rahman AU, Mohamed MHN, Jamshed S, Mahmood S, Iftikhar Baig MA
    J Pharm Bioallied Sci, 2020 Nov;12(Suppl 2):S671-S675.
    PMID: 33828359 DOI: 10.4103/jpbs.JPBS_245_19
    Background: The Fagerstrom test for nicotine dependence (FTND) is the most widely used scale for assessing nicotine dependence on conventional tobacco cigarettes (TCGs). But the FTND does not evaluate the subject's nicotine dependence to electronic cigarette (EC).

    Objective: The aim of this study was to develop and assess an equivalent modified FTND scale that measures the nicotine dependency via EC.

    Materials and Methods: The investigator developed the equivalent modified FTND scale that scores identical to the original scale, that is, 0-10. The developed scale piloted among 15 EC single users, that is, use only EC verified by carbon monoxide (CO) level of <8ppm. The assessment of the scale was done among 69 EC single users and observed for 1 year to determine their nicotine status.

    Results: The modified scale revealed an acceptable Cronbach α value of 0.725. Further test-retest reliability of the scale showed a satisfactory Spearman's rank correlation coefficient value of 0.730 (P > 0.05). A 1-year observation showed that of 69 single users, 11 single users completely stopped nicotine intake, 24 remained as EC single users, 15 shifted to dual-use, and 19 relapsed to TCG. Surprisingly, the EC users who completely stopped nicotine intake after 1 year had a low average nicotine dependence value of 3 that was measured by the modified FTND scale at the baseline.

    Conclusion: The modified FTND scale precisely identifies the physical dependence to nicotine via EC. Therefore, as per this study results the modified FTND scale can be applied in any EC-related studies to assess nicotine dependency via EC.

  13. Aftab RA, Khan AH, Syed Sulaiman SA, Ali I, Khan K
    Am J Med Sci, 2014 Nov;348(5):357-61.
    PMID: 25118657 DOI: 10.1097/MAJ.0000000000000269
    BACKGROUND: The insufficient adoption of internationally accepted clinical guidelines may lead to less than adequate patient care of patients with asthma.
    OBJECTIVE: To evaluate the knowledge and treatment compliance with Global Initiative of Asthma (GINA, 2011) asthma treatment guidelines among emergency physicians (EPs) at a referral hospital in northern Malaysia.
    METHODS: A cross-sectional study was designed in the territory-level referral hospital in northern Malaysia. Twenty-seven EPs were asked to complete an asthma guideline questionnaire to assess their knowledge regarding GINA 2011 asthma treatment guidelines. A total of 810 patients were enrolled, and 30 patients were selected per physician. The authors evaluated the physicians' compliance with GINA 2011 asthma treatment guidelines.
    RESULTS: Of 27 EPs, 20 (74.1%) had adequate knowledge of GINA 2011 asthma treatment guidelines. A total of 615 (75.9%) patients received guideline-recommended emergency treatment. Shortness of breath (n = 436, 53.8%) was the most frequently reported chief complaint. Furthermore, there was a significant but weak association between knowledge of the guideline and treatment compliance among emergency doctors (P = 0.003, φ = 0.110). Moreover, there was no significant change in therapy for patients with comorbid conditions. The mean age of respondents was 27.3 years.
    CONCLUSIONS: Overall, a fair level of guideline knowledge and treatment compliance was noted among EPs. Doctors with adequate guideline knowledge were more likely to comply with GINA 2011 asthma treatment guidelines.
  14. Abbasi SH, Aftab RA, Lai PSM, Lim SK, Zainol Abidin RN
    Front Pharmacol, 2021;12:707511.
    PMID: 34447309 DOI: 10.3389/fphar.2021.707511
    Background: Due to frequent hospitalizations, complex dialysis procedures and immune compromising effects of end stage renal disease (ESRD), patients on dialysis are more prone to healthcare associated infections (HCAIs). Objective: To study the impact of HCAIs on survival and treatment outcomes among ESRD patients on renal replacement therapy (RRT). Methodology: A multicenter, retrospective study was conducted from June to December 2019 at two public hospitals of Malaysia. ESRD patients with minimum of 6 months on RRT were included, while pregnant patients and patients <18 years were excluded. Multinomial logistic regression was performed to identify risk factors associated with unsuccessful treatment outcomes. Kaplan Meier analysis was performed to study the survival. Results: A total of 670 records were examined, of which 400 patients were included as per the inclusion criteria. The mean survival time of patients without HCAIs [22.7 (95%CI:22.1-23.2)] was higher than the patients with HCAIs [19.9 (95%CI:18.8-20.9)]. Poor survival was seen in patients with >2 comorbidities, >60 years of age, low hemoglobin concentration and high C-reactive protein levels. The most frequent treatment outcome was cured [113 (64.9%)], followed by death [37 (21.3%)] and treatment failure [17 (9.8%)]. Advancing age, and low hemoglobin concentration were independent risk factors associated with death, while recurrent HCAIs, use of central venous catheters, and low serum sodium levels were risk factors for treatment failure. Conclusion: The high burden of HCAIs is a profound challenge faced by patients on RRT, which not only effects the treatment outcomes but also contributes substantially to the poor survival among these patients.
  15. Thaver I, Ahmad AM, Ashraf M, Asghar SK, Mirza MS
    J Pak Med Assoc, 2020 Dec;70(12(A)):2092-2101.
    PMID: 33475578 DOI: 10.47391/JPMA.1218
    OBJECTIVE: To investigate the effect on maternal and infant health of iron plus folate and multiple micronutrient supplements, along with deworming and health education session provided to pregnant women in rural, nonagrarian and food-insecure areas.

    METHODS: The quasi-experimental study was conducted in Tharparker and Umerkot districts, Sindh, Pakistan, in 2013-14, and comprised pregnant women in their earlier weeks of pregnancy. The enrolment and follow-up phase entailed 3 visits to each subject. Areas covered by lady health workers were designated as intervention areas, and those with non-LHW population were labelled as non-intervention areas.

    RESULTS: Of the 1204 subjects, 600(49.8%) were in the intervention group and 604(50.2%) were in the nonintervention group. By the end of the follow-up phase, significantly more women had increased number of meals in the intervention group compared to the non-intervention group (p<0.001). There was a significantly higher increase in mean haemoglobin levels and body mass index of women in the intervention arm after 3 and 6 months of interventions (p<0.05). Significantly higher mean birth weight was recorded in intervention areas compared to nonintervention areas (p<0.05).

    CONCLUSIONS: Community-based provision of multiple micronutrients to women along with deworming, health education and dietary counselling significantly reduced the prevalence of anaemia and reduced the incidence of low birth weight.

  16. Aftab RA, Khan AH, Adnan AS, Sulaiman SA, Khan TM
    Sci Rep, 2016 12 06;6:36592.
    PMID: 27922020 DOI: 10.1038/srep36592
    To assess the effectiveness of losartan 50 mg on post dialysis euvolemic hypertensive patients against standard antihypertensive pharmacotherapy. A multicentre, prospective, randomized, single-blind trial was conducted to assess the effect of losartan 50 mg every other day (EOD), once a morning (OM) among post-dialysis euvolemic hypertensive patients. Covariate-adaptive randomization was used to allocate participants to a standard or treatment arm, and they were followed up for eight weeks. Pre-, intra- and post-dialysis session blood pressure (BP) measurements were recorded along with any adverse events. A total of 88 patients were randomized into standard (n = 44) and treatment arms (n = 44) and were followed for a period of 8 weeks. In the standard group, the mean post-dialysis blood pressure dropped by 0.3 mmHg by the end of the 8th week. However the treatment arm reported a drop of 2.4 mmHg of BP drop during the 8-week trial period. Analysis suggests that there was a significant difference in blood pressure readings at the end of 8 weeks among patients treated with losartan (P 
  17. Awais MA, Yusoff MZ, Khan DM, Yahya N, Kamel N, Ebrahim M
    Sensors (Basel), 2021 Sep 30;21(19).
    PMID: 34640888 DOI: 10.3390/s21196570
    Motor imagery (MI)-based brain-computer interfaces have gained much attention in the last few years. They provide the ability to control external devices, such as prosthetic arms and wheelchairs, by using brain activities. Several researchers have reported the inter-communication of multiple brain regions during motor tasks, thus making it difficult to isolate one or two brain regions in which motor activities take place. Therefore, a deeper understanding of the brain's neural patterns is important for BCI in order to provide more useful and insightful features. Thus, brain connectivity provides a promising approach to solving the stated shortcomings by considering inter-channel/region relationships during motor imagination. This study used effective connectivity in the brain in terms of the partial directed coherence (PDC) and directed transfer function (DTF) as intensively unconventional feature sets for motor imagery (MI) classification. MANOVA-based analysis was performed to identify statistically significant connectivity pairs. Furthermore, the study sought to predict MI patterns by using four classification algorithms-an SVM, KNN, decision tree, and probabilistic neural network. The study provides a comparative analysis of all of the classification methods using two-class MI data extracted from the PhysioNet EEG database. The proposed techniques based on a probabilistic neural network (PNN) as a classifier and PDC as a feature set outperformed the other classification and feature extraction techniques with a superior classification accuracy and a lower error rate. The research findings indicate that when the PDC was used as a feature set, the PNN attained the greatest overall average accuracy of 98.65%, whereas the same classifier was used to attain the greatest accuracy of 82.81% with the DTF. This study validates the activation of multiple brain regions during a motor task by achieving better classification outcomes through brain connectivity as compared to conventional features. Since the PDC outperformed the DTF as a feature set with its superior classification accuracy and low error rate, it has great potential for application in MI-based brain-computer interfaces.
  18. Tufail AB, Ma YK, Kaabar MKA, Martínez F, Junejo AR, Ullah I, et al.
    Comput Math Methods Med, 2021;2021:9025470.
    PMID: 34754327 DOI: 10.1155/2021/9025470
    Deep learning (DL) is a branch of machine learning and artificial intelligence that has been applied to many areas in different domains such as health care and drug design. Cancer prognosis estimates the ultimate fate of a cancer subject and provides survival estimation of the subjects. An accurate and timely diagnostic and prognostic decision will greatly benefit cancer subjects. DL has emerged as a technology of choice due to the availability of high computational resources. The main components in a standard computer-aided design (CAD) system are preprocessing, feature recognition, extraction and selection, categorization, and performance assessment. Reduction of costs associated with sequencing systems offers a myriad of opportunities for building precise models for cancer diagnosis and prognosis prediction. In this survey, we provided a summary of current works where DL has helped to determine the best models for the cancer diagnosis and prognosis prediction tasks. DL is a generic model requiring minimal data manipulations and achieves better results while working with enormous volumes of data. Aims are to scrutinize the influence of DL systems using histopathology images, present a summary of state-of-the-art DL methods, and give directions to future researchers to refine the existing methods.
  19. Aftab RA, Khan AH, SYed Sulaiman SA, Ali I, Hassali A, Saleem F
    Turk J Med Sci, 2016 Nov 17;46(5):1300-1305.
    PMID: 27966326 DOI: 10.3906/sag-1405-45
    BACKGROUND/AIM: Multiple asthma guidelines have been developed to reduce asthma mortality, morbidity, and cost associated with asthma worldwide. In Malaysia, within this context, it is relatively unknown to what extent doctors adhere to the asthma guidelines. This study aimed to assess guideline adherence and calculate the cost of adhered and nonadhered prescriptions by medical doctors in a public tertiary health care facility.
    MATERIALS AND METHODS: A cross-sectional study was carried out at Hospital Pulau Pinang, Malaysia. One hundred and eighty patients, a total of 30 patients per doctor, were enrolled to assess guideline adherence. The patients were followed for a second visit to assess their lung function. The costs of adhered and nonadhered prescriptions were calculated.
    RESULTS: One hundred and forty-three patients (79%) received guideline (Global Initiative for Asthma 2011)-adhering pharmacotherapy. In the majority of patients (n = 133, 73.9%) asthma control was classified as partially controlled. There was no significant association observed between patient asthma control and patient demographics; however, there was a significant difference (P < 0.001) between lung function values from the first and second visits. The cost of adhered prescription was higher (70.1 Malaysian ringgit) than that of nonadhered prescription (13.74 Malaysian ringgit).
    CONCLUSION: Fair levels of guideline adherence were observed. Emphasis should be placed on identifying appropriate cost-effective medication regimens based on patient asthma control and constant feedback from patients.
    Study site: Respiratory clinic, Hospital Pulau Pinang, Pulau Pinang, Malaysia
  20. Shakeel S, Nesar S, Rehman H, Jamil K, Mallick IA, Mustafa MS, et al.
    Pharmacy (Basel), 2021 Dec 20;9(4).
    PMID: 34941635 DOI: 10.3390/pharmacy9040203
    Off-label drug prescribing (OLDP) must be based on strong scientific evidence to make sure that patients get the optimum therapeutic outcomes. Adherence to the prerequisites is determined by the physicians' attitude and knowledge. In this context, the present study was conducted with the goal of investigating psychiatrists' perceptions of the use of OLDP in their clinical practice. A total of 14 psychiatrists were interviewed using a semi-structured interview guide. Thematic content analysis was performed. Data saturation was achieved at the 12th interview. Six major themes and fifteen subthemes emerged from qualitative interviews. Among the major themes were knowledge and concepts about the off-label drugs, attitude and current practice of prescribing off-label drugs, and rationale of prescribing and suggestions for reducing the use of off-label drugs. Almost all of the respondents interviewed provided detailed comments concerning the OLDP concept, depicted an optimistic approach and deemed that OLDP is quite common in psychiatry. Off-label usage of benzodiazepines such as clonazepam, diazepam and lorazepam in mania, depression, and obsessive-compulsive disorder were commonly reported. It was observed that the majority of the respondents did not inform the patients before prescribing off-label drugs. The present findings revealed that respondents had awareness; however, they depicted diverse attitudes towards prescribing off-label drugs. Further education and sensitization in regions with impoverished knowledge would certainly assist in preventing the risks associated with the use of OLDP.
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