Displaying publications 41 - 60 of 78 in total

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  1. Haseeb A, Faidah HS, Al-Gethamy M, Iqbal MS, Alhifany AA, Ali M, et al.
    Saudi Pharm J, 2020 Oct;28(10):1166-1171.
    PMID: 33132709 DOI: 10.1016/j.jsps.2020.08.005
    Antimicrobial stewardship programs (ASPs) are collaborative efforts to optimize antimicrobial use in healthcare institutions through evidence-based quality improvement strategies. The general administration of pharmaceutical care in the Saudi ministry of health (MOH) is putting outstanding efforts in implementing antimicrobial stewardship in Saudi health care settings. Several surveys have been conducted globally and reported many types of antimicrobial stewardship strategies in health institutions and their effectiveness. This study aims to identify ASPs in Makkah region hospitals and their perceived level of success. We administered a regional survey to explore current progress and issues related to the implementation of ASPs in Makkah region hospitals at the pharmacy level (n = 25). Among responding hospitals, 19 (76%) hospitals, the most commonly reported ASP were as following: formulary restrictions (90%) for broad-spectrum antimicrobials and use of prospective feedback on antimicrobial prescribing (68%), use of clinical guidelines and pathways (100%), and use of automatic stop orders (68%) to limit inappropriate antimicrobial therapy. The study outcomes will also be of pivotal importance to devise policies and strategies for antimicrobial stewardship implementation in other non-MOH settings in the Makkah region. Based on our results, all reported institutions have at least one antimicrobial stewardship program in a process with a high success rate. A multidisciplinary ASP approach, active involvement of drug & therapeutic committee, formulary restrictions, and availability of education & training of pharmacists and physicians on ASP are the primary elements for perceived successful antimicrobial stewardship programs in the Makkah region hospitals.
  2. Bilal Maqsood M, Ashraful Islam M, Zeb-Un-Nisa, Abbas Naqvi A, Al Qarni A, Fuad Al-Karasneh A, et al.
    Saudi Pharm J, 2021 Sep 20.
    PMID: 34566456 DOI: 10.1016/j.jsps.2021.09.002
    Objective: The study aimed to document the quality of work life (QWL) among healthcare staff of intensive care unit (ICU) and emergency unit during COVID-19 outbreak using WHOQoL-BREF.

    Methods: A multicenter cross-sectional study was conducted for two months (May - June 2020) among healthcare staff working in intensive care units (ICUs) and emergency units of the hospitals under National Guard Health Authority (NGHA) across five cities of Saudi Arabia. The study used the WHOQoL-BREF instrument to document the QWL through an electronic institutional survey. The data was analyzed through IBM SPSS version 23. The study was approved by an ethics committee.

    Results: A total of 290 healthcare professionals responded to the survey. The mean overall quality of life score was 3.37 ± 0.97, general health = 3.66 ± 0.88, domains, i.e., physical = 11.67 ± 2.16, psychological = 13.08 ± 2.14, social = 13.22 ± 3.31 and environment = 12.38 ± 2.59. Respondents aged > 40 years, male gender, married status, being a physician and, having a work experience > 15 years and no extra working hours, had higher mean scores for several domains of Quality of life (QoL), overall QoL and general health (p < 0.05).

    Conclusion: The QWL among healthcare staff during COVID-19 pandemic was low. Demographic factors were mainly the determinants for a higher QWL while extra working hours was determinant of lower QWL. Despite the pandemic, no COVID-19 related variable affected the work life of healthcare staff.

  3. Rabea S, Alanazi FK, Ashour AE, Salem-Bekhit MM, Yassin AS, Moneib NA, et al.
    Saudi Pharm J, 2020 Oct;28(10):1253-1262.
    PMID: 33132719 DOI: 10.1016/j.jsps.2020.08.016
    Cell- based targeted delivery is recently gain attention as a promising platform for delivery of anticancer drug in selective and efficient manner. As a new biotechnology platform, bacterial ghosts (BGs) have novel biomedical application as targeted drug delivery system (TDDS). In the current work, Salmonellas' BGs was utilized for the first time as hepatocellular cancer (HCC) in-vitro targeted delivery system. Successful BGs loading and accurate analysis of doxorubicin (DOX) were necessary steps for testing the applicability of DOX loaded BGs in targeting the liver cancer cells. Loading capacity was maximized to reach 27.5 µg/mg (27.5% encapsulation efficiency), by incubation of 10 mg BGs with 1 mg DOX at pH 9 in constant temperature (25 °C) for 10 min. In-vitro release study of DOX loaded BGs showed a sustained release (182 h) obeying Higuchi sustained kinetic release model. The death rate (tested by MTT assay) of HepG2 reached to 64.5% by using of 4 μg/ml, while it was about 51% using the same concentration of the free DOX (P value 
  4. Lim WJ, Chan PF, Hamid RA
    Saudi Pharm J, 2024 Jan;32(1):101891.
    PMID: 38111673 DOI: 10.1016/j.jsps.2023.101891
    The root hexane extract of Ardisia crispa (ACRH), which belongs to the Primulaceae family, has been reported to possess anti-inflammatory, chemopreventive, anti-arthritic, and antiangiogenic activities. In this study, we isolated a p-benzoquinone derivative, 2-methoxy-6-undecyl-1,4-benzoquinone (AC2), from ACRH and investigated its potential antiangiogenic activity in human umbilical vein endothelial cells (HUVECs) and zebrafish embryo models. Prior to this study, AC2 was characterized using 1H NMR spectroscopy and MS. AC2 significantly suppressed HUVEC proliferation in a time-independent manner, with an IC50 value of 1.35 ± 0.05, 1.15 ± 0.02, and 1.00 ± 0.01 µg/mL at 24, 48, and 72 h, respectively. AC2 also induced apoptosis in HUVECs and significantly suppressed their migration, invasion, and tube formation in a concentration-dependent manner. Additionally, AC2 significantly attenuated most of the analyzed protein markers, including pro-MMP-2, VEGF-C, VEGF-D, angiopoietin-2, endothelin-1, fibroblast growth factor (FGF)-1, FGF-2, follistatin, heparin-binding epidermal growth factor-like growth factor (HB-EGF), and hepatocyte growth factor (HGF) at all tested concentrations. Furthermore, AC2 significantly inhibited zebrafish embryo intersegmental vessels (ISVs), confirming its antiangiogenic role. In conclusion, AC2 exhibits a potential anti-angiogenic effect by suppressing several proangiogenic and growth factors. Further studies are needed to investigate their effects on other excessive angiogenic diseases.
  5. Kuppusamy P, Yusoff MM, Maniam GP, Govindan N
    Saudi Pharm J, 2016 Jul;24(4):473-84.
    PMID: 27330378 DOI: 10.1016/j.jsps.2014.11.013
    The field of nanotechnology mainly encompasses with biology, physics, chemistry and material sciences and it develops novel therapeutic nanosized materials for biomedical and pharmaceutical applications. The biological syntheses of nanoparticles are being carried out by different macro-microscopic organisms such as plant, bacteria, fungi, seaweeds and microalgae. The biosynthesized nanomaterials have been effectively controlling the various endemic diseases with less adverse effect. Plant contains abundant natural compounds such as alkaloids, flavonoids, saponins, steroids, tannins and other nutritional compounds. These natural products are derived from various parts of plant such as leaves, stems, roots shoots, flowers, barks, and seeds. Recently, many studies have proved that the plant extracts act as a potential precursor for the synthesis of nanomaterial in non-hazardous ways. Since the plant extract contains various secondary metabolites, it acts as reducing and stabilizing agents for the bioreduction reaction to synthesized novel metallic nanoparticles. The non-biological methods (chemical and physical) are used in the synthesis of nanoparticles, which has a serious hazardous and high toxicity for living organisms. In addition, the biological synthesis of metallic nanoparticles is inexpensive, single step and eco-friendly methods. The plants are used successfully in the synthesis of various greener nanoparticles such as cobalt, copper, silver, gold, palladium, platinum, zinc oxide and magnetite. Also, the plant mediated nanoparticles are potential remedy for various diseases such as malaria, cancer, HIV, hepatitis and other acute diseases.
  6. Zafar N, Mahmood A, Ilyas S, Ijaz H, Muhammad Sarfraz R, Mahdi WA, et al.
    Saudi Pharm J, 2023 Aug;31(8):101671.
    PMID: 37484541 DOI: 10.1016/j.jsps.2023.06.004
    BACKGROUND & OBJECTIVES: This study aimed to create a controlled delivery system for Tapentadol Hydrochloride by developing interpenetrating networks (IPNs) of Natrosol-Pectin copolymerized with Acrylic Acid and Methylene bisacrylamide, and to analyze the effects of various ingredients on the physical and chemical characteristics of the IPNs.

    METHODS: Novel Tapentadol Hydrochloride-loaded Natrosol-Pectin based IPNs were formulated by using the free radical polymerization technique. Co-polymerization of Acrylic Acid (AA) with Natrosol and Pectin was performed by using Methylene bisacrylamide (MBA). Ammonium persulfate (APS) was used as the initiator of crosslinking process. The impact of ingredients i.e. Natrosol, Pectin, MBA, and Acrylic Acid on the gel fraction, porosity, swelling (%), drug loading, and drug release was investigated. FTIR, DSC, TGA, SEM and EDX studies were conducted to confirm the grafting of polymers and to evaluate the thermal stability and surface morphology of the developed IPNs.

    RESULTS: Swelling studies exhibited an increase in swelling percentage from 84.27 to 91.17% upon increasing polymer (Natrosol and Pectin) contents. An increase in MBA contents resulted in a decrease in swelling from 85 to 67.63%. Moreover, the swelling was also observed to increase with higher AA contents. Significant drug release was noted at higher pH instead of gastric pH value. Oral toxicological studies revealed the nontoxic and biocompatible nature of Natrosol-Pectin IPNs.

    INTERPRETATION & CONCLUSION: The developed IPNs were found to be an excellent system for the controlled delivery of Tapentadol Hydrochloride.

  7. Elshammaa K, Hamza N, Elkholy E, Mahrous A, Elnaem M, Elrggal M
    Saudi Pharm J, 2022 Jan 19;30(3):283-90.
    PMID: 35103043 DOI: 10.1016/j.jsps.2022.01.008
    BACKGROUND: Pharmaceutical firms are striving to find potential treatments to prevent and treat COVID-19. One of the gold standards to evaluate treatment is a clinical trial; however, the difficulty in patient recruitment could act as a determinant. It is evident from the registry data that very few studies have been conducted involving the population of the Middle East and North Africa (MENA) region.

    AIM: To document knowledge, perception, and attitude of the public from Two large countries in the MENA region (Egypt and Saudi Arabia) towards participation in clinical trials focused on evaluating potential COVID-19 treatments.

    METHOD: A cross-sectional study was conducted that used a snowball sampling strategy for recruitment. General population 18 years old or older, who lived in Saudi Arabia or Egypt were invited. The survey was adopted from literature and was approved by an ethics committee.

    RESULTS: Out of 800 participants in the survey, 407 participants were from Egypt, and 393 were from Saudi Arabia. Most participants (48%) had moderate knowledge, i.e., > 60% < 80%. The results revealed poor attitude (88.5%) and poor perceptions (45.8%) regarding participation in COVID-19 clinical trials. Education and residence were identified as determinants of participants' knowledge, attitude, and perceptions. Participants' knowledge and understanding of COVID-19 trials did not impact their willingness to participate. This coupled with a poor attitude and perception among the masses drastically affects any potential for participation in future clinical trials. Conclusion: A relatively small proportion of participants were interested in enrolling in COVID-19 studies. Increased collective engagement through social media and healthcare professionals can help improve attitudes and perceptions toward trial participation.

  8. Meshal A, Sarriff A, El-Shamly M
    Saudi Pharm J, 2015 Apr;23(2):210-4.
    PMID: 25972743 DOI: 10.1016/j.jsps.2014.06.010
    This study aimed at evaluating the usefulness of a structured patient counseling program on clinical outcomes of asthma patients in Saudi Arabia. This cross sectional study enrolled 10 asthma patients and all were evaluated for their baseline knowledge on asthma, quality of life, compliance, patient satisfaction and drug related problems among randomly selected 5 (of the total 10) patients. The median (IQR) age of the patients was 46 (33.5-56.2) years. The baseline knowledge scores was 9 (8-11), the maximum possible scores to be 21. Cronbach alpha of the KQ was 0.65. The overall total median (IQR) compliance (Morisky) score was 4 (3-5), the maximum possible score was 5. The patient satisfaction median (IQR) score was 35.5 (32-46.25), the maximum possible score was 70. Of the total patients 3 (30%) had a history of allergy. There were total 18 allergens observed in these patients. There has been no drug-drug or drug-food interactions observed between among the prescribed drugs of the patients. Altogether 2 patients reported a total of 2 ADRs. The knowledge of the asthma patients was found to be poor. Missing the dose was the most commonly encountered drug taking behavior. The compliance was found to be good and the patient satisfaction was average.
  9. Handayani D, Aminah I, Pontana Putra P, Eka Putra A, Arbain D, Satriawan H, et al.
    Saudi Pharm J, 2023 Sep;31(9):101744.
    PMID: 37649676 DOI: 10.1016/j.jsps.2023.101744
    Methicillin-resistant Staphylococcus aureus (MRSA) is an emerging nosocomial pathogen among hospitalized patients, with high morbidity and mortality rates. The discovery of a novel antibacterial is urgently needed to address this resistance problem. The present study aims to explore the antibacterial potential of three depsidone compounds: 2-clorounguinol (1), unguinol (2), and nidulin (3), isolated from the marine sponge-derived fungus Aspergillus unguis IB1, both in vitro and in silico. The antibacterial activity of all compounds was evaluated by calculating the Minimum inhibitory concentration (MIC) and Minimum bactericidal concentration (MBC) against MRSA using agar diffusion and total plate count methods, respectively. Bacterial cell morphology changes were  studied for the first time using scanning electron microscopy (SEM). Molecular docking, pharmacokinetics analysis, and molecular dynamics simulation were performed to determine possible protein-ligand interactions and the stability of the targeting penicillin-binding protein 2a (PBP2a) against 2-clorounguinol (1). The research findings indicated that compounds 1 to 3 exhibited MIC and MBC values of 2 µg/mL and 16 µg/mL against MRSA, respectively. MRSA cells displayed a distinct shape after the addition of the depsidone compound, as observed in SEM. According to the in silico study, 2-chlorounguinol exhibited the highest binding-free energy (BFE) with PBP2a (-6.7 kcal/mol). For comparison, (E)-3-(2-(4-cyanostyryl)-4-oxoquinazolin-3(4H)-yl) benzoic acid inhibits PBP2a with a BFE less than -6.6 kcal/mol. Based on the Lipinski's rule of 5, depsidone compounds constitute a class of compounds with good pharmacokinetic properties, being easily absorbed and permeable. These findings suggest that 2-chlorounguinol possesses potential antibacterial activity and could be developed as an antibiotic adjuvant to reduce antimicrobial resistance.
  10. Kaleemullah M, Jiyauddin K, Thiban E, Rasha S, Al-Dhalli S, Budiasih S, et al.
    Saudi Pharm J, 2017 Jul;25(5):770-779.
    PMID: 28725150 DOI: 10.1016/j.jsps.2016.10.006
    Currently, the use of natural gums and mucilage is of increasing importance in pharmaceutical formulations as valuable drug excipient. Natural plant-based materials are economic, free of side effects, biocompatible and biodegradable. Therefore, Ketoprofen matrix tablets were formulated by employing Hibiscus rosa-sinensis leaves mucilage as natural polymer and HPMC (K100M) as a synthetic polymer to sustain the drug release from matrix system. Direct compression method was used to develop sustained released matrix tablets. The formulated matrix tablets were evaluated in terms of physical appearance, weight variation, thickness, diameter, hardness, friability and in vitro drug release. The difference between the natural and synthetic polymers was investigated concurrently. Matrix tablets developed from each formulation passed all standard physical evaluation tests. The dissolution studies of formulated tablets revealed sustained drug release up to 24 h compared to the reference drug Apo Keto® SR tablets. The dissolution data later were fitted into kinetic models such as zero order equation, first order equation, Higuchi equation, Hixson Crowell equation and Korsmeyer-Peppas equation to study the release of drugs from each formulation. The best formulations were selected based on the similarity factor (f2) value of 50% and more. Through the research, it is found that by increasing the polymers concentration, the rate of drug release decreased for both natural and synthetic polymers. The best formulation was found to be F3 which contained 40% Hibiscus rosa-sinensis mucilage polymer and showed comparable dissolution profile to the reference drug with f2 value of 78.03%. The release kinetics of this formulation has shown to follow non-Fickian type which involved both diffusion and erosion mechanism. Additionally, the statistical results indicated that there was no significant difference (p > 0.05) between the F3 and reference drug in terms of MDT and T50% with p-values of 1.00 and 0.995 respectively.
  11. Aina A, Gupta M, Boukari Y, Morris A, Billa N, Doughty S
    Saudi Pharm J, 2016 Mar;24(2):227-31.
    PMID: 27013917 DOI: 10.1016/j.jsps.2015.03.015
    The microencapsulation of three model drugs; metronidazole, paracetamol and sulphapyridine into Poly (dl-Lactide-Co-Glycolide) (PLGA) scaffolds were probed using X-ray Powder Diffraction (XRPD). Changes in the diffraction patterns of the PLGA scaffolds after encapsulation was suggestive of a chemical interaction between the pure drugs and the scaffolds and not a physical intermixture.
  12. Makki M, Hassali MAA, Awaisu A, Chemaitelly H
    Saudi Pharm J, 2021 Jul;29(7):648-655.
    PMID: 34400858 DOI: 10.1016/j.jsps.2021.04.026
    Background: Unused medications in homes pose significant health, economic, and environmental risks. Patients are the medications end users and their knowledge, attitude, and practices (KAP) play an important role towards medication use, unuse and wastage. Thus, a valid instrument to reliably measure patients' KAP towards unused medications in homes may help manage the associated risks.

    Objective: To develop, translate, and validate a questionnaire for the assessment patients' KAP towards unused medications in Qatar homes (i.e., QUM-Qatar).

    Setting: This cross-sectional validation study was conducted among randomly selected outpatients visiting various public and private pharmacies in Qatar between September 2019 and February 2020.

    Method: Nine experts in the field of pharmacy practice with Qatar contextual background established the content validity of the instrument. The validity was quantified using content validity index (CVI). Furthermore, construct validity was performed using principal component analysis (PCA), whereas internal consistency reliability of items was determined using Cronbach's alpha. Statistical analyses were performed using STATA 15 statistical software.

    Main outcome measure: The psychometric properties of the QUM-Qatar assessment instrument.

    Results: An English/Arabic questionnaire was developed and validated. Content validity in the form of scale-level-CVI (S-CVI)/Average and S-CVI/UA was 0.88 and 0.84, respectively, suggesting adequate relevant content of the questionnaire. Variation explained by the multivariate model was 85.0% for knowledge, 94.8% for attitude, and 89.8% for practice. Cronbach's alpha coefficients were 0.68, 0.82, and 0.84, for knowledge, attitude, and practice domains, respectively. From the psychometric results obtained, the questionnaire's validity and reliability were attained.

    Conclusion: The QUM-Qatar instrument has acceptable psychometric properties and has the potential for future use in research and practice to assess KAP towards unused medications in Qatar and elsewhere. It may consequently help in improving medication use and mitigating the negative health, economic, and environmental impacts of unused medications.Impacts on practice.•There is now a valid and reliable English/Arabic language questionnaire to assess patients' KAP towards unused medications.•Policymakers can utilize this questionnaire to develop evidence-based policies and strategies for managing unused medications and their disposal.•To improve medication use review, rational use of medicines, and adherence, it is necessary to consider patient-reported outcomes that may eventually reflect on saving health, economic resources, and environment.

  13. Khan TM, Alhafez AA, Syed Sulaiman SA, Bin Chia DW
    Saudi Pharm J, 2015 Nov;23(6):614-20.
    PMID: 26702255 DOI: 10.1016/j.jsps.2014.10.004
    The aim of this study was to assess the safety and probability of adverse events associated with the use of 75 mg pregabalin post hemodialysis (pHD) among patients with UP.
  14. Aljadhey H, Mahmoud MA, Hassali MA, Alrasheedy A, Alahmad A, Saleem F, et al.
    Saudi Pharm J, 2014 Sep;22(4):326-32.
    PMID: 25161376 DOI: 10.1016/j.jsps.2013.08.001
    Medication safety is a global concern among healthcare providers. However, the challenges to and the future of medication safety in Saudi Arabia have not been explored.
  15. Qin H, Tang G, Yi P, Pan X, Huang H, Chang R, et al.
    Saudi Pharm J, 2016 May;24(3):265-72.
    PMID: 27275113 DOI: 10.1016/j.jsps.2016.04.015
    The present study aimed to establish a genus-specific PCR-based assay to detect helicobacters using 16S rRNA gene as the target template. We designed the hemi-nested primers based on sequences of 16S rRNA gene of 34 types of Helicobacter species. The inclusivity, sensitivity, and specificity of the PCR assay using these primers were examined in three different models, comprising feces simulated samples, BLAB/c mice infection model and clinic patients samples. The detection sensitivity of Helicobacter pylori, Helicobacter hepaticus and Helicobacter bilis strains from feces simulated samples was all 102 CFU/ml. We successfully detected H. hepaticus and H. bilis in the liver, cecum and feces of experimentally infected mice. H. pylori was successfully detected in the feces samples from 3 patients infected with H. pylori while not in the feces samples from 3 healthy human. However, the C97/C05-C97/C98 PCR assay detected H. pylori in the 2 positive samples. Due to the PCR assay's excellent inclusivity, high sensitivity and specificity it may be used to detect the presence of Helicobacters.
  16. Bian J, Zhu S, Ma W, Li C, Ashraf MA
    Saudi Pharm J, 2016 May;24(3):354-62.
    PMID: 27275127 DOI: 10.1016/j.jsps.2016.04.017
    This study is to establish a model of rat tibial osteocarcinoma pain, intrathecally inject specific ERK1/2 inhibitors SCH772984, observe the analgesic effect, and discuss the influence of ERK-P90RSK-Fos signal path in bone cancer pain. Forty female SD rats were randomly divided into 5 groups. Establish a bone cancer pain model after putting the intrathecal tube 5d and determine the rats' mechanical withdrawal threshold (MWT) after tube 5d; 40 SD rats with intrathecal tube back 5d were randomly divided into 5 groups. Sham Group receives no medication, the other four respectively receive 5% DMSO 10 μl, SCH 0.1, 1.0, 10 μg (SCH dissolved in 10 μl 5% DMSO) intrathecally. Determine the rats' mechanical withdrawal threshold (MWT) before and after giving medication 1, 3, 6, 9, 12, 15, 18, 24 h, and 2 min spontaneous paw withdrawal. Western blot and immuno-fluorescence determine the expression condition of spinal cord dorsal horn of p-ERK, p-p90RSK and Fos protein. Intrathecal injection of SCH772984 has analgesic effects on rats with bone cancer pain, and the effects enhance with increasing dose; intrathecal injection of SCH772984 10 μg could greatly reduce the expression of spinal dorsal horn Fos protein. Injecting walker 256 tumor cells into rats' tibia could cause behavior changes, such as idiopathic pain sensitivity and pain; the intrathecal tube almost has no effect on motor function of rats; ERK1/2 is involved in bone cancer pain, and intrathecal injection of ERK1/2 specific inhibitors SCH772984 10 μg may effectively relieve bone cancer pain.
  17. Zamli KM, Hashim F, Razali SA, Yusoff HM, Mohamad H, Abdullah F, et al.
    Saudi Pharm J, 2023 Sep;31(9):101703.
    PMID: 37546528 DOI: 10.1016/j.jsps.2023.101703
    Amoebae of the genus Acanthamoeba can cause diseases such as amoebic keratitis and granulomatous amoebic encephalitis. Until now, treatment options for these diseases have not been fully effective and have several drawbacks. Therefore, research into new drugs is needed for more effective treatment of Acanthamoeba infections. Eugenol, a phenolic aromatic compound mainly derived from cloves, has a variety of pharmaceutical properties. In this study, nine eugenol derivatives (K1-K9), consisting of five new and four known compounds, were synthesized and screened for their antiamoebic properties against Acanthamoeba sp. The structure of these compounds was characterized spectroscopically by Fourier transform infrared (FTIR), Ultraviolet-Visible (UV-Vis), 1H and 13C Nuclear Magnetic Resonance (NMR) and mass spectrometer (MS). The derived molecules were screened for antiamoebic activity by determining IC50 values based on 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay and observation of amoeba morphological changes by light and fluorescence microscopy. Most of the tested compounds possessed strong to moderate cytotoxic effects against trophozoite cells with IC50 values ranging from 0.61 to 24.83 μg/mL. Observation of amoebae morphology by light microscopy showed that the compounds caused the transformed cells to be roundish and reduced in size. Furthermore, fluorescence microscopy observation using acridine orange (AO) and propidium iodide (PI) (AO/PI) staining showed that the cells have damaged membranes by displaying a green cytoplasm with orange-stained lysosomes. Acidification of the lysosomal structure indicated disruption of the internal structure of Acanthamoeba cells when treated with eugenol derivatives. The observed biological results were also confirmed by interaction simulations based on molecular docking between eugenol derivatives and Acanthamoeba profilin. These interactions could affect the actin-binding ability of the protein, disrupting the shape and mobility of Acanthamoeba. The overall results of this study demonstrate that eugenol derivatives can be considered as potential drugs against infections caused by Acanthamoeba.
  18. Hussain M, Sahudin S, Abu Samah NH, Anuar NK
    Saudi Pharm J, 2019 Feb;27(2):274-282.
    PMID: 30766440 DOI: 10.1016/j.jsps.2018.11.009
    Objective: To investigate students perception of an industry based approach problem based learning (PBL) and their performance in drug delivery courses in pharmaceutics.

    Methods: PBL was implemented within two drug delivery courses in 2015, in anticipation that the use of formulation or industrial instead of clinical or pharmacy practice based triggers, would open up student interest and understanding towards learning pharmaceutics in relation to industrial pharmacy. Two cohorts were monitored through final year examination results and PBL feedback to evaluate student perception and acceptance of the use of PBL. Previous cohorts were only exposed to conventional tutorials.

    Results: Both cohorts showed better performance in their final examination results (2015 & 2016) compared to the previous year (2014) when students were only exposed to tutorials. The maximum and average marks obtained were also higher. There was significant difference between the maximum marks for Drug Delivery Systems 2 and the average marks for Drug Delivery Systems 1 with P 

  19. Oksal E, Pangestika I, Muhammad TST, Mohamad H, Amir H, Kassim MNI, et al.
    Saudi Pharm J, 2020 Oct;28(10):1263-1275.
    PMID: 33132720 DOI: 10.1016/j.jsps.2020.08.017
    Pandanus tectorius fruit, a natural product rich in tangeretin and ethyl caffeate, has been reported to have potential as anti-hypercholesterolemia agent via Scavenger Receptor Class B type 1 (SR-B1) pathway. However, due to its semi-polar properties, P. tectorius extract exhibits poor solubility when used as a medical remedy. The extract's solubility can potentially be improved through a synthesis of nanoparticles of chitosan-P. tectorius fruit extract. This can also increase the extract's SR-B1 gene expression activity. To date, no studies of nanoparticles of chitosan-P. tectorius fruit extract and its pathway via SR-B1 have been published anywhere. In this study, cytotoxicity properties against HepG2 were explored by MTT. Then luciferase assay was used to detect their effectiveness in increasing SR-B1 activity. An in vivo study using Sprague dawley was carried out to observe the extract nanoparticles' effectiveness in reducing the cholesterol levels and the toxicity property in rat's liver. As the results showed, the extract nanoparticles had no cytotoxic activity against HepG2 cells and exhibited higher SR-B1 gene expression activity than the non-nanoparticle form. As the in vivo study proved, nanoparticle treatment can reduce the levels of TC (197%), LDL (360%), and TG (109%), as well as increase the level of HDL cholesterol by 150%, in comparison to those for the untreated high-cholesterol diet group. From the toxicity study, it was found that there was non-toxicity in the liver. It can be concluded that nanoparticles of chitosan-P. tectorius fruit extract successfully increased P. tectorius fruit extract's effectiveness in reducing hypercholesterolemia via SR-B1 pathway. Hence, it can be suggested that nanoparticles of chitosan-P. tectorius fruit extract is safe and suitable as an alternative treatment for controlling hypercholesterolemia via SR-B1 pathway.
  20. Alshehade SA, Al Zarzour RH, Murugaiyah V, Lim SYM, El-Refae HG, Alshawsh MA
    Saudi Pharm J, 2022 Nov;30(11):1572-1588.
    PMID: 36465851 DOI: 10.1016/j.jsps.2022.09.001
    Non-alcoholic fatty liver disease (NAFLD) is one of the most common complications of a metabolic syndrome caused by excessive accumulation of fat in the liver. Orthosiphon stamineus also known as Orthosiphon aristatus is a medicinal plant with possible potential beneficial effects on various metabolic disorders. This study aims to investigate the in vitro inhibitory effects of O. stamineus on hepatic fat accumulation and to further use the computational systems pharmacology approach to identify the pharmacokinetic properties of the bioactive compounds of O. stamineus and to predict their molecular mechanisms against NAFLD.

    METHODS: The effects of an ethanolic extract of O. stamineus leaves on cytotoxicity, fat accumulation and antioxidant activity were assessed using HepG2 cells. The bioactive compounds of O. stamineus were identified using LC/MS and two bioinformatics databases, namely the Traditional Chinese Medicine Integrated Database (TCMID) and the Bioinformatics Analysis Tool for the Molecular Mechanism of Traditional Chinese Medicine (BATMAN-TCM). Pathway enrichment analysis was performed on the predicted targets of the bioactive compounds to provide a systematic overview of the molecular mechanism of action, while molecular docking was used to validate the predicted targets.

    RESULTS: A total of 27 bioactive compounds corresponding to 50 potential NAFLD-related targets were identified. O. stamineus exerts its anti-NAFLD effects by modulating a variety of cellular processes, including oxidative stress, mitochondrial β-oxidation, inflammatory signalling pathways, insulin signalling, and fatty acid homeostasis pathways. O. stamineus is significantly targeting many oxidative stress regulators, including JNK, mammalian target of rapamycin (mTOR), NFKB1, PPAR, and AKT1. Molecular docking analysis confirmed the expected high affinity for the potential targets, while the in vitro assay indicates the ability of O. stamineus to inhibit hepatic fat accumulation.

    CONCLUSION: Using the computational systems pharmacology approach, the potentially beneficial effect of O. stamineus in NAFLD was indicated through the combination of multiple compounds, multiple targets, and multicellular components.

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