Displaying publications 41 - 60 of 340 in total

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  1. Jailani M, Elias SM, Rajikan R
    Nutrients, 2021 Sep 30;13(10).
    PMID: 34684475 DOI: 10.3390/nu13103474
    Healthy Eating Index (HEI) is a diet quality measure that assesses the population's compliance towards dietary guidelines. In Malaysia, diet quality measure, though existing, has some limitations in terms of application and relevance. This study aims to develop a new standardized Malaysian Healthy Eating Index (S-MHEI) that can measure the diet quality of all Malaysians regardless of their energy requirement level. The Malaysian Dietary Guidelines (MDG) 2010 and MDG for Children and Adolescents (MDGCA) 2013 were used as main references in developing the index components. In addition, the latest Malaysian Adults Nutrition Survey (MANS) and Adolescent Nutrition Survey (ANS) were also referred to ensure the relevance of the components selected. For adequacy components, the least restrictive method was used in setting the standard for the scoring system. Meanwhile, the scoring system for moderation components was built based on the Recommended Nutrient Intake (RNI) 2017. The new S-MHEI comprises of 11 components with a maximum total score of 100. The least restrictive method allowed the index to be used across energy requirement levels. However, the index will not be sensitive towards adhering to the specific recommended amount of intake-which in effect, made the index focus on measuring diet quality rather than diet quantity.
    Matched MeSH terms: Reference Standards
  2. Muhammad Najib Mohamad Alwi, Rafidah Bahari
    MyJurnal
    Introduction: Posttraumatic stress disorder (PTSD) is a mental health condition which develops following exposure to life-threatening events. This cross-sectional study was conducted among adult patients from all walks of life who had injuries related to motor vehicle accidents to determine the cut-off point of the Malay Posttraumatic Stress Disorder Checklist For DSM-5 (MPCLC-5) for its use as a screening tool for PTSD in the Malaysian population. Methods: Using convenient sampling method, 204 subjects who fulfilled the inclusion criteria were recruited and they were given the 17 item self-rated MPCLC-5 to fill up. Subsequently, trained personnel administered the gold standard Clinician Administered PTSD Scale for DSM 5 (CAPS-5). ROC curve analysis was done to determine appropriate cut-off point for the MPCLC-5. Results: Cut off point of 42/43 would yield the most preferable sensitivity and specificity for MPCLC-5 when compared to CAPS-5 (Sensitivity: 67.56% (95%CI 55.68% to 78.00%); Specificity : 80% (95% CI 72.08% to 86.50%) ). Conclusion: The easy to administer MPCLC-5 is suitable for screening of PTSD among local patients with a proposed cut off point of 42/43.
    Matched MeSH terms: Reference Standards
  3. Arulappen AL, Danial M, Haron N, Hau LC, Khan AH
    Front Pharmacol, 2020;11:565818.
    PMID: 33664664 DOI: 10.3389/fphar.2020.565818
    Antimicrobial stewardship (AMS) program promotes the judicious use of antimicrobials. Hence, this study was conducted to analyze the impact of stewardship on the prescribing pattern of cefuroxime injection among the surgeons as perioperative antimicrobial prophylaxis (PAP). This study was conducted retrospectively in Malaysia. Various outcomes were measured including cefuroxime usage, compliance with the guidelines, surgical site infections, and cost savings. A total of 1,601 patients were recruited in the study. In terms of usage, the total defined daily dose (DDD) prior to the intervention was 202 DDD/100 procedures compared to that after intervention which was 144 DDD/100 procedures (p < 0.05). On the other hand, the excessively long administration of PAP dropped from 94.4 to 30.3% (p < 0.001). Focusing on the compliance with the newly developed local guidelines, it has increased from 53 to 94.3% after the interventions were made (p < 0.001), whereas the rate of surgical site infections was reduced from 17.0 to 9.0%. The cost of antibiotic being used has significantly reduced after the study intervention (p = 0.007). The quality of PAP directly impacts the antimicrobial usage, the surgical site infections, and the total cost involved. Thus, it is crucial to maintain the standard of PAP at all times in healthcare settings.
    Matched MeSH terms: Reference Standards
  4. Mohd Shahrol, A.W., Mohd Hasni, J., Zaleha, M.I.
    Medicine & Health, 2020;15(2):187-214.
    MyJurnal
    Pengetahuan mengenai pendedahan plumbum (Pb) di kalangan kanak-kanak masih kurang baik di kalangan ibu bapa di Malaysia. Tujuan utama kajian ini adalah untuk menterjemahkan versi Bahasa Inggeris Chicago Lead Knowledge Test (CLKT) yang asal ke dalam Bahasa Melayu (bahasa tempatan) dan disesuaikan dengan latar belakang budaya negara ini. Langkah-langkah terjemahan adalah sistematik dan berdasarkan ‘International Society for Pharmacoeconomics and Outcome Research’ (ISPOR) iaitu persediaan, terjemahan ke depan, perangkuman, terjemahan mundur, penilaian terjemahan mundur, penyelarasan, pembahasan kognitif, penilaian pembahasan kognitif dan semakan akhir, pembacaan pruf, dan laporan akhir. Jumlah item adalah kekal 24, di mana satu item dihapus, satu item disemak semula, dan satu item ditambah ke dalam borang soalan kaji selidik. Keempat-empat tema iaitu pengetahuan umum, pendedahan, pencegahan dan pemakanan dalam soal selidik ini dikekalkan. Skala respon, skema jawapan, dan sistem pemarkahan adalah tetap sama. Sebilangan besar item mempunyai terjemahan langsung ke bahasa Melayu kecuali item 5, 7, 12, 20, dan 22. Purata (+SD) dan julat interkuartil (IQR) untuk skor keseluruhan pengetahuan adalah 9.50 + 2.45 markah dan 5 markah masing-masing. Skor terendah adalah 4 markah dan skor tertinggi ialah 13 markah. Ini merupakan satu-satunya kajian yang menggunakan pendekatan sistematik dan standard dalam terjemahan dan penyesuaian budaya di Malaysia. Terjemahan CLKT dan penyesuaian budaya di Malaysia akan menyumbang kepada penyelidikan semasa yang lain terutamanya mengenai pendedahan Pb di kalangan kanak-kanak.

    Matched MeSH terms: Reference Standards
  5. Hasnul Hadi MH, Ker PJ, Thiviyanathan VA, Tang SGH, Leong YS, Lee HJ, et al.
    Sensors (Basel), 2021 Oct 16;21(20).
    PMID: 34696079 DOI: 10.3390/s21206866
    For most natural or naturally-derived liquid products, their color reflects on their quality and occasionally affects customer preferences. To date, there are a few subjective and objective methods for color measurement which are currently utilized by various industries. Researchers are also improving these methods and inventing new methods, as color is proven to have the ability to provide various information on the condition and quality of the liquid. However, a review on the methods, especially for amber-colored liquid, has not been conducted yet. This paper presents a comprehensive review on the subjective and objective methods for color measurement of amber-colored liquids. The pros and cons of the measurement methods, the effects of the color on customer preferences, and the international industry standards on color measurements are reviewed and discussed. In addition, this study elaborates on the issues and challenges related to the color measurement techniques as well as recommendations for future research. This review demonstrates that the existing color measurement technique can determine the color according to the standards and color scales. However, the efforts toward minimizing the complexity of the hardware while maximizing the signal processing through advanced computation are still lacking. Therefore, through this critical review, this review can hopefully intensify the efforts toward finding an optimized method or technique for color measurement of liquids and thus expedite the development of a portable device that can measure color accurately.
    Matched MeSH terms: Reference Standards*
  6. Jamal FN, Arafat Dzulkarnain AA, Shahrudin FA, Marzuki MN
    J Audiol Otol, 2021 Jan;25(1):14-21.
    PMID: 32575950 DOI: 10.7874/jao.2020.00073
    BACKGROUND AND OBJECTIVES: There is growing interest in the use of the Level-specific (LS) CE-Chirp® stimulus in auditory brainstem response (ABR) due to its ability to produce prominent ABR waves with robust amplitudes. There are no known studies that investigate the test-retest reliability of the ABR to the LS CE-Chirp® stimulus. The present study aims to investigate the test-retest reliability of the ABR to the LS CE-Chirp® stimulus and compare its reliability with the ABR to standard click stimulus at multiple intensity levels in normal-hearing adults.

    SUBJECTS AND METHODS: Eleven normal-hearing adults participated. The ABR test was repeated twice in the same clinical session and conducted again in another session. The ABR was acquired using both the click and LS CE-Chirp® stimuli at 4 presentation levels (80, 60, 40, and 20 dBnHL). Only the right ear was tested using the ipsilateral electrode montage. The reliability of the ABR findings (amplitudes and latencies) to the click and LS CE-Chirp® stimuli within the same clinical session and between the two clinical sessions was calculated using an intra-class correlation coefficient analysis (ICC).

    RESULTS: The results showed a significant correlation of the ABR findings (amplitude and latencies) to both stimuli within the same session and between the clinical sessions. The ICC values ranged from moderate to excellent.

    CONCLUSIONS: The ABR results from both the LS CE-Chirp® and click stimuli were consistent and reliable over the two clinical sessions suggesting that both stimuli can be used for neurological diagnoses with the same reliability.

    Matched MeSH terms: Reference Standards
  7. Norfazilah Ahmad, Santhna Letchmi Panduragan, Yee,San Khor, Kalaiarasan Gemini, Nur Atikah Bahrin, Nur Husnina Azhar, et al.
    Borneo Epidemiology Journal, 2020;1(1):35-45.
    MyJurnal
    Strategising, which is an effective workplace intervention to curb cardiovascular disease (CVD), requires understanding of the CVD risk related to a specific working population. The Framingham Risk Score (FRS) is widely used in predicting the ten-year CVD risk of various working populations. This study aimed to use FRS to determine the ten-year CVD risk amongst workers in a tertiary healthcare setting and its associated factors. A cross-sectional study was conducted on workers who participated in the special health check programme at the staff clinic of a tertiary healthcare institution in Kuala Lumpur, Malaysia. A set of data sheets was used to retrieve the workers’ sociodemographic and CVD risk information. The prevalence of high, moderate and low ten-year CVD risk was 12.8%, 20.0% and 67.2%, respectively. Workers in the high-risk group were older [mean age: 54.81 (standard deviation, 5.72) years], male (44%), smokers (72.7%) and having hyperglycaemia (46.7%) and hypertriglyceridemia [median triglycerides: 1.75 (interquartile range, 1.45) mmol/L]. Diastolic blood pressure (aOR 1.07, 95% CI: 1.01,1.14), hyperglycaemia (aOR 8.80, 95% CI: 1.92,40.36) and hypertriglyceridemia (aOR 4.45, 95% CI: 1.78,11.09) were significantly associated with high ten-year CVD risk. Diastolic blood pressure (aOR 1.08, 95% CI: 1.03,1.13) and hypertriglyceridemia (aOR 2.51, 95% CI: 1.12-5.61) were significantly associated with moderate ten-year CVD risk. The prevalence of high and moderate ten-year CVD risk was relatively high. Amongst the workers in the high-risk group, they were older, male, smokers and with high fasting blood sugar and triglyceride. Understanding the ten-year CVD risk and its associated factors could be used to plan periodic workplace health assessment and monitor to prevent CVD
    Matched MeSH terms: Reference Standards
  8. Shudipta Choudhury
    MyJurnal
    Background: Technological diversity management in the manufacturing of advanced medical devices is
    essential. The manufacturing industries of medical devices should act in accordance with the technical
    guidelines and regulations in order to ensure best practices with the use of devices in hospitals
    Aim: To explore safety hazards, cost implications, and social and ethical standards to be considered during
    the manufacturing of advanced medical devices
    Subject and Methods: Aqualitative descriptive study was used. There was no targeted sample in the current
    study whereby secondary data were used to explore the research topic. Secondary sources were obtained
    from databases including EBSCOHOST, PubMed, ProQuest, Science Direct, and Google Scholar. Peerreviewed
    articles, journals, books, conference proceedings, and other web publications were used to gather
    relevant data.
    Results: The current study indicated that the technological diversity management of advanced medical
    devices is associated with safety hazards like security threats, integrity problems, and medical errors. The
    study also showed that high cost of standardizations, supply, and purchase of advanced medical devices is a
    huge burden faced by the manufacturers andusers. The study showed that the regulation of the medical
    devices, certification, and post-market surveillanceare essential social and ethical considerations during the
    manufacturing process of the new medical devices.
    Conclusion: The current study explored the technological diversity of advanced medical devices. It is
    evident in the current study that technology diversity of medical devices is associated with safety hazards
    and cost implications. The study disclosed that taking into account social and ethical issues aid in
    manufacturing safe and high quality medical devices.
    Matched MeSH terms: Reference Standards
  9. Alharthi MS, Scott S, Hughes C, Bond C, Hatah E, Bryant L, et al.
    Int J Pharm Pract, 2024 Mar 06;32(2):180-185.
    PMID: 38387608 DOI: 10.1093/ijpp/riae002
    BACKGROUND: Medication review (MR) is the systematic assessment of a patient's medications for safety and effectiveness by a healthcare professional. The language used to describe MR activity, such as stopped medicine and increased dose, should be consistent across studies to assist researchers compare how different services operate and identify their mechanism of impact.

    AIM: To develop an international taxonomy of standardized terms and activity definitions related to medication reviews.

    METHOD: This was a three-stage Delphi-based consensus study with international medication review experts. A systematic review provided MR activity terms for the survey. Experts rated their consensus on each activity term and its definition on a Likert scale and provided written feedback. The consensus was 75% panel agreement. At each stage, consensus elements were retained, and feedback was used to revise definitions.

    RESULTS: Seven experts were recruited for the study (response rate 15.2%) from four countries: the United Kingdom (n = 4), New Zealand (n = 1), Australia (n = 1), and Malaysia (n = 1). The following terms achieved consensus: the term Medication as a descriptor for MR terms; discontinue medication, start medication, dose increase, dose decrease, dosage form change, and medication safety and efficacy monitor to describe MR activity; Educate to describe the delivery of healthcare professionals and patients/carers education.

    CONCLUSION: Standardized medication review activity terms and definitions have been selected for universal adoption in all future MR research to facilitate a meaningful comparison of process evaluations within different settings.

    Matched MeSH terms: Reference Standards
  10. Kumar A, Jain A, Sayyed MI, Laariedh F, Mahmoud KA, Nebhen J, et al.
    Sci Rep, 2021 Apr 08;11(1):7784.
    PMID: 33833308 DOI: 10.1038/s41598-021-87256-1
    Nuclear radiation shielding capabilities for a glass series 20Bi2O3 - xPbO - (80 - 2x)B2O3 - xGeO2 (where x = 5, 10, 20, and 30 mol%) have been investigated using the Phy-X/PSD software and Monte Carlo N-Particle transport code. The mass attenuation coefficients (μm) of selected samples have been estimated through XCOM dependent Phy-X/PSD program and MCNP-5 code in the photon-energy range 0.015-15 MeV. So obtained μm values are used to calculate other γ-ray shielding parameters such as half-value layer (HVL), mean-free-path (MFP), etc. The calculated μm values were found to be 71.20 cm2/g, 76.03 cm2/g, 84.24 cm2/g, and 90.94 cm2/g for four glasses S1 to S4, respectively. The effective atomic number (Zeff)values vary between 69.87 and 17.11 for S1 or 75.66 and 29.11 for S4 over 0.05-15 MeV of photon-energy. Sample S4, which has a larger PbO/GeO2 of 30 mol% in the bismuth-borate glass, possesses the lowest MFP and HVL, providing higher radiation protection efficiency compared to all other combinations. It shows outperformance while compared the calculated parameters (HVL and MFP) with the commercial shielding glasses, different alloys, polymers, standard shielding concretes, and ceramics. Geometric Progression (G-P) was applied for evaluating the energy absorption and exposure buildup factors at energies 0.015-15 MeV with penetration depths up to 40 mfp. The buildup factors showed dependence on the MFP and photon-energy as well. The studied samples' neutron shielding behavior was also evaluated by calculating the fast neutron removal cross-section (ΣR), i.e. found to be 0.139 cm-1 for S1, 0.133 cm-1 for S2, 0.128 cm-1 for S3, and 0.12 cm-1 for S4. The results reveal a great potential for using a glass composite sample S4 in radiation protection applications.
    Matched MeSH terms: Reference Standards
  11. Alyahyawi A, Jupp T, Alkhorayef M, Bradley DA
    Appl Radiat Isot, 2018 Aug;138:45-49.
    PMID: 28780202 DOI: 10.1016/j.apradiso.2017.07.011
    In the modern clinical practice of diagnostic radiology there is a growing demand for radiation dosimetry, it also being recognized that with increasing use of X-ray examinations additional population dose will result, accompanied by an additional albeit low potential for genetic consequences. At the doses typical of diagnostic radiology there is also a low statistical risk for cancer induction; in adhering to best practice, to be also implied is a low but non-negligible potential for deterministic sensitive organ responses, including in regard to the skin and eyes. Risk reduction is important, in line with the principle of ALARP, both in regard to staff and patients alike; for the latter modern practice is usually guided by Dose Reference Levels (DRL) while for the former and members of the public, legislated controls (supported by safe working practices) pertain. As such, effective, reliable and accurate means of dosimetry are required in support of these actions. Recent studies have shown that Ge-doped-silica glass fibres offer several advantages over the well-established phosphor-based TL dosimeters (TLD), including excellent sensitivity at diagnostic doses as demonstrated herein, low fading, good reproducibility and re-usability, as well as representing a water impervious, robust dosimetric system. In addition, these silica-based fibres show good linearity over a wide dynamic range of dose and dose-rate and are directionally independent. In the present study, we investigate tailor made doped-silica glass thermoluminescence (TL) for applications in medical diagnostic imaging dosimetry. The aim is to develop a dosimeter of sensitivity greater than that of the commonly used LiF (Mg,Ti) phosphor. We examine the ability of such doped glass media to detect the typically low levels of radiation in diagnostic applications (from fractions of a mGy through to several mGy or more), including, mammography and dental radiology, use being made of x-ray tubes located at the Royal Surrey County Hospital. We further examine dose-linearity, energy response and fading.
    Matched MeSH terms: Reference Standards
  12. Razak KAA, Ghani KHA, Musa AA
    Injury, 2021 Jan;52(1):90-94.
    PMID: 33168201 DOI: 10.1016/j.injury.2020.11.004
    BACKGROUND: Acetabular fractures in childhood are rare and the literature is scarce to describe a standard protocol in surgical management of these injuries. As the patient is still growing, it warrants a detailed assessment with a sound surgical plan if operative intervention is deemed necessary to prevent late complications. Throughout literature, most fixation rely on using pins, screws, plates or combination of the three which require large surgical exposure and risk of secondary physeal injury, hence we come up with a method of using the Titanium Elastic Nail System (TENS) to overcome this issue. We describe a novel technique in managing acetabular fractures in this group of patients using the TENS.

    METHOD: An 8 year old girl with a diagnosis of right anterior column posterior hemitransverse acetabular fracture was fixed with 3 TENS for supra-acetabular, anterior column and posterior column fragments. Surgery was performed in a minimally invasive manner. No drilling was performed during the surgery and implant insertion is done manually.

    RESULTS: Advantages of this procedure include minimally invasive surgery with smaller wounds, minimal intraoperative bleeding and theoretically reduces the risk of premature fusion of the triradiate cartilage. Patient is allowed early rehabilitation with this method.

    CONCLUSION: This novel method provides an alternative to traditional usage of wires, pins, plates and screws as is described in most literature. However, it requires the surgeon to appreciate that the safe corridors for the implant are much narrower than adults. We recommend this technique for fractures that are deemed suitable for intramedullary fixation and further research in the future will be needed.

    Matched MeSH terms: Reference Standards
  13. Kumari M, Tahlan S, Narasimhan B, Ramasamy K, Lim SM, Shah SAA, et al.
    BMC Chem, 2021 Jan 21;15(1):5.
    PMID: 33478538 DOI: 10.1186/s13065-020-00717-y
    BACKGROUND: Triazole is an important heterocyclic moiety that occupies a unique position in heterocyclic chemistry, due to its large number of biological activities. It exists in two isomeric forms i.e. 1,2,4-triazole and 1,2,3-triazole and is used as core molecule for the design and synthesis of many medicinal compounds. 1,2,4-Triazole possess broad spectrum of therapeutically interesting drug candidates such as analgesic, antiseptic, antimicrobial, antioxidant, anti-urease, anti-inflammatory, diuretics, anticancer, anticonvulsant, antidiabetic and antimigraine agents.

    METHODS: The structures of all synthesized compounds were characterized by physicochemical properties and spectral means (IR and NMR). The synthesized compounds were evaluated for their in vitro antimicrobial activity against Gram-positive (B. subtilis), Gram-negative (P. aeruginosa and E. coli) bacterial and fungal (C. albicans and A. niger) strains by tube dilution method using ciprofloxacin, amoxicillin and fluconazole as standards. In-vitro antioxidant and anti-urease screening was done by DPPH assay and indophenol method, respectively. The in-vitro anticancer evaluation was carried out against MCF-7 and HCT116 cancer cell lines using 5-FU as standards.

    RESULTS, DISCUSSION AND CONCLUSION: The biological screening results reveal that the compounds T5 (MICBS, EC = 24.7 µM, MICPA, CA = 12.3 µM) and T17 (MICAN = 27.1 µM) exhibited potent antimicrobial activity as comparable to standards ciprofloxacin, amoxicillin (MICCipro = 18.1 µM, MICAmo = 17.1 µM) and fluconazole (MICFlu = 20.4 µM), respectively. The antioxidant evaluation showed that compounds T2 (IC50 = 34.83 µg/ml) and T3 (IC50 = 34.38 µg/ml) showed significant antioxidant activity and comparable to ascorbic acid (IC50 = 35.44 µg/ml). Compounds T3 (IC50 = 54.01 µg/ml) was the most potent urease inhibitor amongst the synthesized compounds and compared to standard thiourea (IC50 = 54.25 µg/ml). The most potent anticancer activity was shown by compounds T2 (IC50 = 3.84 μM) and T7 (IC50 = 3.25 μM) against HCT116 cell lines as compared to standard 5-FU (IC50 = 25.36 μM).

    Matched MeSH terms: Reference Standards
  14. Dahiya R, Rampersad S, Ramnanansingh TG, Kaur K, Kaur R, Mourya R, et al.
    Iran J Pharm Res, 2020;19(3):156-170.
    PMID: 33680019 DOI: 10.22037/ijpr.2020.15405.13075
    Synthesis of a natural proline-rich cyclopolypeptide - rolloamide A was carried out by coupling of tri- and tetrapeptide units Boc-Phe-Pro-Val-OMe and Boc-Pro-Leu-Pro-Ile-OMe after proper deprotection at carboxyl and amino terminals using carbodiimide chemistry in alkaline environment followed by cyclization of linear heptapeptide segment in the presence of base. The structure of synthesized peptide was confirmed by spectral techniques including FTIR, 1H NMR, 13C NMR, MS analyses. Newly synthesized peptide was subjected to biological screening against pathogenic microbes and earthworms. Cyclopeptide 8 possessed promising activity against pathogenic fungi Candida albicans (ZOI: 24 mm, MIC: 6 μg/mL) and Gram-negative bacteria Pseudomonas aeruginosa (ZOI: 27 mm, MIC: 6 μg/mL) and Klebsiella pneumoniae (ZOI: 23 mm, MIC: 12.5 μg/mL), in comparison to reference drugs - griseofulvin (ZOI: 20 mm, MIC: 6 μg/mL) and ciprofloxacin (ZOI: 25 mm, MIC: 6 μg/mL/ZOI: 20 mm, MIC: 12.5 μg/mL). Also, newly synthesized heptacyclopeptide exhibited potent anthelmintic activity against earthworms Megascoplex konkanensis,Pontoscotex corethruses, and Eudrilus species (MPT/MDT ratio - 8.22-16.02/10.06-17.59 min), in comparison to standard drugs - mebendazole (MPT/MDT ratio - 10.52-18.02/12.57-19.49 min) and piperazine citrate (MPT/MDT ratio - 12.38-19.17/13.44-22.17 min).
    Matched MeSH terms: Reference Standards
  15. Shiming Z, Mak KK, Balijepalli MK, Chakravarthi S, Pichika MR
    Biomed Pharmacother, 2021 Jul;139:111576.
    PMID: 33862494 DOI: 10.1016/j.biopha.2021.111576
    Diabetes mellitus or type-2 diabetes, commonly referred as diabetes, is a metabolic disorder that results in high blood sugar level. Despite the availability of several antidiabetic drugs in the market, they still do not adequately regulate blood sugar levels. Thus, in general people prefer to use herbal supplements/medicines along with antidiabetic drugs to control blood sugar levels. One of such herbal medicine is Swietenia macrophylla seeds. It is widely used in Asia for controlling blood sugar levels. One of the major bioactive compounds, Swietenine, is reported to be responsible for controlling blood glucose levels. However, there were no studies on its efficacy in controlling the blood glucose in diabetic rats. In this study, we evaluated the antihyperglycemic activity of Swietenine and its pharmacodynamic interaction with Metformin in Streptozotocin induced diabetes in rats. The activity of Swietenine was investigated at three different doses: 10, 20 and 40 mg/kg body weight (bw). Metformin (50 mg/kg bw) was used as a standard drug. Swietenine (20 and 40 mg/kg bw) and Metformin (50 mg/kg bw) showed significant effect in reducing the glucose, cholesterol, triglycerides, low-density lipoprotein, urea, creatinine, alanine transaminase, alkaline phosphatase, aspartate transaminase, alanine transaminase, and malondialdehyde level in serum while it had increased the high-density lipoprotein, glutathione, and total antioxidant capacity level. In addition, Swietenine (20 and 40 mg/kg) had shown significant synergistic effect with Metformin. Administration of Swietenine at 10 mg/kg bw neither showed activity nor influenced Metformin's activity. The results from this study confirmed the beneficial effects of Swietenine and its synergistic action with Metformin in controlling the dysregulated serum parameters in Streptozotocin induced diabetes in rats.
    Matched MeSH terms: Reference Standards
  16. Mohd Yusop AY, Xiao L, Fu S
    Drug Test Anal, 2021 May;13(5):965-976.
    PMID: 32441056 DOI: 10.1002/dta.2861
    The lucrative market of herbal remedies spurs rampant adulteration, particularly with pharmaceutical drugs and their unapproved analogues. A comprehensive screening strategy is, therefore, warranted to detect these adulterants and, accordingly, to safeguard public health. This study uses the data-dependent acquisition of liquid chromatography-quadrupole time-of-flight-mass spectrometry (LC-QTOF-MS) to screen phosphodiesterase 5 (PDE5) inhibitors in herbal remedies using suspected-target and non-targeted strategies. For the suspected-target screening, we used a library comprising 95 PDE5 inhibitors. For the non-targeted screening, we adopted top-down and bottom-up approaches to flag novel PDE5 inhibitor analogues based on common fragmentation patterns. LC-QTOF-MS was optimised and validated for capsule and tablet dosage forms using 23 target analytes, selected to represent different groups of PDE5 inhibitors. The method exhibited excellent specificity and linearity with limit of detection and limit of quantification of <40 and 80 ng/mL, respectively. The accuracy ranged from 79.0% to 124.7% with a precision of <14.9% relative standard deviation. The modified, quick, easy, cheap, effective, rugged, and safe extraction provided insignificant matrix effect within -9.1%-8.0% and satisfactory extraction recovery of 71.5%-105.8%. These strategies were used to screen 52 herbal remedy samples that claimed to enhance male sexual performance. The suspected-target screening resulted in 33 positive samples, revealing 10 target analytes and 2 suspected analytes. Systematic MS and tandem MS interrogations using the non-targeted screening returned insignificant signals, indicating the absence of potentially novel analogues. The target analytes were quantified from 0.03 to 121.31 mg per dose of each sample. The proposed strategies ensure that all PDE5 inhibitors are comprehensively screened, providing a useful tool to curb the widespread adulteration of herbal remedies.
    Matched MeSH terms: Reference Standards
  17. Sow AY, Ismail A, Zulkifli SZ, Amal MN, Hambali KA
    Sci Rep, 2019 04 23;9(1):6391.
    PMID: 31015502 DOI: 10.1038/s41598-019-42753-2
    This work investigates the metals concentration in the tissues of Asian swamp eel, Monopterus albus. Five selected tissues, including liver, gill, bone, skin, and muscle were examined for the concentration of Zn, Cu, Cd, Pb, and Ni. The concentrations of Cd and Pb were found high in the muscle tissues of the eels. Additionally, high amounts of Zn and Cu metals were observed in the liver, whereas the Cd, Pb, and Ni metals were highly detected in gill. The accumulation of Zn, Cu, Cd, Pb, and Ni in both skin and bone of the eel seems to vary between seasons. Low levels of Zn, Cu, and Ni were identified in the muscle tissues of the eels. This study revealed that the concentration of Cd and Pb in the muscle tissues of Asian swamp eels exceeded the permissible limits by the US EPA, suggesting the consumption of the muscle may be hazardous and can severely affect one's health.
    Matched MeSH terms: Reference Standards
  18. TANGAPRABHU MURTHY, MARY FATIMAH SUBET
    MyJurnal
    Proverbs are created when people started to observe and understand the nature around them. Proverbs consist of literal meanings and implicated meanings. The way these proverbs have been said, portrays the beauty and smoothness of the language to which the proverbs belong. This research is mainly conducted to distinguish Indian community's intellectual and philosophical abilities in conveying direct and indirect meanings. The theoretical framework used in this research is inquisitive semantics by Nor Hashimah Jalaluddin (2014). This is a qualitative research. The researcher attained 25 datas by interviewing four (4) Indian informants. However, this research acquired only three 3 data in which the image of sugarcane has been used. Finding shows that the Indian community's proverbs are established from their observation towards nature and the Indian community has their own philosophical understanding and also intellectual standards in the creation of proverbs. Actual meanings behind the data used in this research have been successfully decoded using the theory of inquisitive semantics. In a nutshell, this study is highly justifiable as the theory used in this research is a renowned and authoritative theory.
    Matched MeSH terms: Reference Standards
  19. Kwan TK, Pertiwi AK, Taylor NF, Gower DB
    Biochim. Biophys. Acta, 1988 Sep 23;962(2):214-9.
    PMID: 3167079
    Twenty authentic steroids, derivatized as O-methyl oximes (MO), trimethylsilyl (TMS) ethers or as MO-TMS ethers have been subjected to capillary gas chromatography using two different columns. Virtually all of the steroid derivatives have been resolved, one difficult pair to separate being 5,16-androstadien-3 beta-ol and 5 alpha-androst-16-en-3 beta-ol on the non-selective phase OV-1. Where syn and anti forms of MO derivatives arose, these were also resolved under the conditions utilised. This technique of 'steroid profiling' has been applied to the separation and quantification of metabolites of pregnenolone which were formed during incubations of the microsomal and cytosolic fractions from rat testes. The majority of the metabolites were found in the microsomal incubation. These compounds included some odorous 16-androstenes as well as other C21 and C19 steroids, the formation of which was consistent with the 5-ene and 4-ene pathways of testosterone biosynthesis being operative. In addition, evidence was obtained for 16 alpha-hydroxylation of C21 steroids. Very much less metabolic activity was found in the cytosolic fraction of rat testes. Metabolic pathways have been proposed which both confirm and extend earlier work. We conclude that the rat testis can only form some of the odorous, possibly pheromonal, 16-androstenes and that these are quantitatively less important than in the porcine testis.
    Matched MeSH terms: Reference Standards
  20. Rehman A, Hassan MF, Yew KH, Paputungan I, Tran DC
    PeerJ Comput Sci, 2020;6:e334.
    PMID: 33816982 DOI: 10.7717/peerj-cs.334
    In the near future, the Internet of Vehicles (IoV) is foreseen to become an inviolable part of smart cities. The integration of vehicular ad hoc networks (VANETs) into the IoV is being driven by the advent of the Internet of Things (IoT) and high-speed communication. However, both the technological and non-technical elements of IoV need to be standardized prior to deployment on the road. This study focuses on trust management (TM) in the IoV/VANETs/ITS (intelligent transport system). Trust has always been important in vehicular networks to ensure safety. A variety of techniques for TM and evaluation have been proposed over the years, yet few comprehensive studies that lay the foundation for the development of a "standard" for TM in IoV have been reported. The motivation behind this study is to examine all the TM models available for vehicular networks to bring together all the techniques from previous studies in this review. The study was carried out using a systematic method in which 31 papers out of 256 research publications were screened. An in-depth analysis of all the TM models was conducted and the strengths and weaknesses of each are highlighted. Considering that solutions based on AI are necessary to meet the requirements of a smart city, our second objective is to analyze the implications of incorporating an AI method based on "context awareness" in a vehicular network. It is evident from mobile ad hoc networks (MANETs) that there is potential for context awareness in ad hoc networks. The findings are expected to contribute significantly to the future formulation of IoVITS standards. In addition, gray areas and open questions for new research dimensions are highlighted.
    Matched MeSH terms: Reference Standards
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