Browse publications by year: 2021

  1. Jani NA, Sirat HM, Ahmad F, Aminudin NI
    Nat Prod Res, 2021 Aug 03.
    PMID: 34343060 DOI: 10.1080/14786419.2021.1961134
    One new sesquiterpene dilactone, coccinine (1) and one new β-carboline alkaloid, daibucarboline F (2) together with 10 known compounds; linderane (3), linderalactone (4), pseudoneolinderane (5), linderanlide C (6), linderanine A (7), epicatechin (8), (-)-taxifolin (9), astilbin (10), L-quercitrin (11) and afzelin (12) were isolated from the stems and leaves of Neolitsea cassia (L.) Kosterm (Lauraceae). The structures of (1 and 2) were established by extensive spectroscopic methods and the known compounds were identified by comparisons with data reported in literature. The relative stereochemistry of compound (1) was assigned by X-ray diffraction analysis with Cu-Kα irradiation. Compounds (3-8) and (10) were evaluated for their α-glucosidase enzymatic inhibitory activity. Compounds (4-6), (8) and (10) exhibited inhibition towards α-glucosidase enzymatic activity with IC50 values ranging from 12.10 to 96.77 μM. This is the first report on the isolation of phytochemicals from N. cassia and their bioactivities.
  2. Chinna K, Sundarasen S, Khoshaim HB, Kamaludin K, Nurunnabi M, Baloch GM, et al.
    PLoS One, 2021;16(8):e0253059.
    PMID: 34343187 DOI: 10.1371/journal.pone.0253059
    The COVID-19 pandemic and the lockdown measures have taken a toll on every level of the society, worldwide. This study examines their psychological impact on university students in Asia. A cross-sectional online survey was conducted between April and May 2020 in Malaysia, Saudi Arabia, Pakistan, Bangladesh, China, India and Indonesia. The Zung's self-rating anxiety scale (SAS) and questions on adaptive and maladaptive coping strategies were used in this study. A total of 3,679 students from the seven countries participated in this study. Overall, 21.9% and 13.7% of the students in this study experienced mild to moderate and severe to extreme levels of anxiety. More than 20% of the students from China and Bangladesh reported severe to extreme level of anxiety compared to below 10% of the students from Indonesia, Malaysia and India. Among the female students, 15.9% experienced severe to extreme level of anxiety compared to 10.6% among the males. Females from Bangladesh, China, Malaysia, Pakistan and Saudi Arabia experienced significantly higher levels of anxiety compared to their male counterparts. Acceptance was the most used and Seeking Social Support was the least used coping strategies among the students. There were significant differences in the usage of the four strategies by countries. Stressors are predominantly financial constraints, remote online learning, and uncertainty related to their academic performance, and future career prospects.
    MeSH terms: Adaptation, Psychological; Anxiety/pathology; Bangladesh; China; Cross-Sectional Studies; Female; Humans; India; Indonesia; Malaysia; Male; Pakistan; Surveys and Questionnaires; Saudi Arabia; Severity of Illness Index; Sex Factors; Social Support; Stress, Psychological*; Students/psychology*; Young Adult
  3. Wijekoon P, Koliyabandara PA, Cooray AT, Lam SS, Athapattu BCL, Vithanage M
    J Hazard Mater, 2021 Jul 12;421:126627.
    PMID: 34343881 DOI: 10.1016/j.jhazmat.2021.126627
    The escalating loads of municipal solid waste (MSW) end up in open dumps and landfills, producing continuous flows of landfill leachate. The risk of incorporating highly toxic landfill leachate into environment is important to be evaluated and measured in order to facilitate decision making for landfill leachate management and treatment. Leachate pollution index (LPI) provides quantitative measures of the potential environmental pollution by landfill leachate and information about the environmental quality adjacent to a particular landfill. According to LPI values, most developing countries show high pollution potentials from leachate, mainly due to high organic waste composition and low level of waste management techniques. A special focus on leachate characterization studies with LPI and its integration to treatment, which has not been focused in previous reviews on landfill leachate, is given here. Further, the current review provides a summary related to leachate generation, composition, characterization, risk assessment and treatment together with challenges and perspectives in the sector with its focus to developing nations. Potential commercial and industrial applications of landfill leachate is discussed in the study to provide insights into its sustainable management which is original for the study.
  4. Rahmat RA, Humphries MA, Linacre AMT, Malik A, Saedon NA, Austin JJ
    Forensic Sci Int, 2021 Jul 29;326:110938.
    PMID: 34343942 DOI: 10.1016/j.forsciint.2021.110938
    The common method of preparing teeth prior to DNA extraction involves cleaning, decontamination, drying and pulverisation. Moisture in post-mortem teeth can promote bacterial growth and hydrolytic damage that could contribute to DNA degradation, whilst also possibly reducing the efficiency of sample pulverisation and DNA release. Here we compared DNA extraction from pig teeth, with- and without freeze-drying, to examine the impact of removing moisture on DNA yield. Quantitative real-time polymerase chain reaction (qPCR) was used to quantify an 83 bp mitochondrial DNA fragment and two nuclear DNA fragments of 82 bp and 150 bp. The comparative results showed that sample preparation with freeze-drying resulted in a higher DNA yield without compromising the DNA quality. This study highlights the advantage of incorporating a freeze-drying to improve the DNA yield and minimising the loss of DNA during sample preparation of teeth.
  5. Laghari M, Talpur BA, Sulaiman SAS, Khan AH, Bhatti Z
    Trans R Soc Trop Med Hyg, 2021 08 02;115(8):904-913.
    PMID: 33382889 DOI: 10.1093/trstmh/traa161
    BACKGROUND: Information on the extent of patient medication adherence and the use of interventions to advance adherence are scarce in clinical practice. This study aimed to assess medication adherence and risk factors for non-adherence among the caregivers of children with tuberculosis (TB).

    METHODS: This prospective study was conducted among the caregivers of 443 child TB patients registered during the study. Caregivers of children were queried using a structured questionnaire consisting of sociodemographic and socio-economic factors and the role of healthcare workers during the treatment course. Risk factors for non-adherence were estimated using a logistic regression model.

    RESULTS: In multivariate analysis, the independent variables that had a statistically significant positive association with non-adherence were male sex (adjusted odds ratio [AOR] 5.870 [95% confidence interval {CI} 1.99 to 17.29]), age ≥45 y (AOR 5.627 [95% CI 1.88 to 16.82]), caregivers with no formal education (AOR 3.905 [95% CI 1.29 to 11.79]), financial barriers (AOR 30.297 [95% CI 6.13 to 149.54]), insufficient counselling by healthcare workers (AOR 5.319 [95% CI 1.62 to 17.42]), insufficient counselling by health professionals (AOR 4.117 [95% CI 1.05 to 16.05]) and unfriendly attitude and poor support from healthcare professionals (AOR 11.150 [95% CI 1.91 to 65.10]).

    CONCLUSIONS: Treatment adherence in the present study was 86% using the Morisky Green Levine Medication Adherence Scale and 90.7% using the visual analogue scale tool. Predictors of non-adherence need to be a focus and caregivers should be given complete knowledge about the importance of adherence to TB treatment.

    MeSH terms: Antitubercular Agents/therapeutic use; Child; Cross-Sectional Studies; Ethiopia; Humans; Male; Prospective Studies; Caregivers*; Medication Adherence
  6. Brown MK, Shahar S, You YX, Michael V, Majid HA, Manaf ZA, et al.
    BMJ Open, 2021 07 23;11(7):e044628.
    PMID: 34301647 DOI: 10.1136/bmjopen-2020-044628
    INTRODUCTION: Current salt intake in Malaysia is high. The existing national salt reduction policy has faced slow progress and does not yet include measures to address the out of home sector. Dishes consumed in the out of home sector are a known leading contributor to daily salt intake. This study aims to develop a salt reduction strategy, tailored to the out of home sector in Malaysia.

    METHODS AND ANALYSIS: This study is a qualitative analysis of stakeholder views towards salt reduction. Participants will be recruited from five zones of Malaysia (Western, Northern, Eastern and Southern regions and East Malaysia), including policy-makers, non-governmental organisations, food industries, school canteen operators, street food vendors and consumers, to participate in focus group discussions or in-depth interviews. Interviews will be transcribed and analysed using thematic analysis. Barriers will be identified and used to develop a tailored salt reduction strategy.

    ETHICS AND DISSEMINATION: Ethical approval has been obtained from the Universiti Kebangsaan Malaysia Medical Research Ethics Committee (UKM PPI/1118/JEP-2020-524), the Malaysian National Medical Research Ethics Committee (NMRR-20-1387-55481 (IIR)) and Queen Mary University of London Research Ethics Committee (QMERC2020/37) . Results will be presented orally and in report form and made available to the relevant ministries for example, Ministry of Health, Ministry of Education and Ministry of Trade to encourage adoption of strategy as policy. The findings of this study will be disseminated through conference presentations, peer-reviewed publications and webinars.

    MeSH terms: Humans; Malaysia; Sodium Chloride*; Sodium Chloride, Dietary*; Qualitative Research; Policy
  7. Chien F, Sadiq M, Nawaz MA, Hussain MS, Tran TD, Le Thanh T
    J Environ Manage, 2021 Nov 01;297:113420.
    PMID: 34333309 DOI: 10.1016/j.jenvman.2021.113420
    Environmental degradation is significantly studied both in the past and the current literature; however, steps towards reducing the environmental pollution in carbon emission and haze pollution like PM2.5 are not under rational attention. This study tries to cover this gap while considering the carbon emission and PM2.5 through observing the role of renewable energy, non-renewable energy, environmental taxes, and ecological innovation for the top Asian economies from 1990 to 2017. For analysis purposes, this research considers cross-sectional dependence analysis, unit root test with and without structural break (Pesaran, 2007), slope heterogeneity analysis, Westerlund and Edgerton (2008) panel cointegration analysis, Banerjee and Carrion-i-Silvestre (2017) cointegration analysis, long-short run CS-ARDL results, as well as AMG and CCEMG for robustness check. The empirical evidence in both the short- and long-run has confirmed the negative and significant effect of renewable energy sources, ecological innovation, and environmental taxes on carbon emissions and PM2.5. Whereas, non-renewable energy sources are causing environmental degradation in the targeted economies. Finally, various policy implications related to carbon emission and haze pollution like PM2.5 are also provided to control their harmful effect on the natural environment.
    MeSH terms: Carbon Dioxide/analysis; Cross-Sectional Studies; Taxes; Economic Development*; Renewable Energy
  8. Karim K, Giribabu N, Salleh N
    Phytomedicine, 2021 Oct;91:153677.
    PMID: 34333329 DOI: 10.1016/j.phymed.2021.153677
    BACKGROUND: M. pumilum has been claimed to protect the bone against the adverse effect of estrogen deficiency. Additionally, it also exhibits anti-diabetic activity. In view of these, this study aims to identify the mechanisms underlying the bone protective effect of M. pumilum in the presence of both estrogen deficiency and diabetes mellitus (DM).

    METHODS: Ovariectomized, diabetic female rats were given M. pumilum leave aqueous extract (MPLA) (50 and 100 mg/kg/day), estrogen, glibenclamide and estrogen plus glibenclamide for 28 consecutive days. At the end of the treatment, fasting blood glucose (FBG), serum insulin, Ca2+, PO43- and bone alkaline phosphatase (BALP) levels were measured. Rats were sacrificed and femur bones were harvested for determination of expression level and distribution of RANK, RANKL, OPG and oxidative stress and inflammatory proteins by molecular biological techniques.

    RESULTS: 100 mg/kg/day MPLA treatment decreased the FBG and BALP levels but increased the serum insulin, Ca2+ and PO43- levels in estrogen deficient, diabetic rats. Expression and distribution of RANKL, NF-κB p65, IKKβ, IL-6, IL-1β and Keap-1 decreased however expression and distribution of RANK, OPG, BMP-2, Type-1 collagen, Runx2, TRAF6, Nrf2, NQO-1, HO-1, SOD and CAT increased in the bone of estrogen deficient, diabetic rats which received 100 mg/kg/day MPLA with greater effects than estrogen-only, glibenclamide-only and estrogen plus glibenclamide treatments.

    CONCLUSION: MPLA helps to overcome the adverse effect of estrogen deficiency and DM on the bone and thus this herb could potentially be used for the treatment and prevention of osteoporosis in postmenopausal women with diabetes.

    MeSH terms: Animals; Bone and Bones/drug effects*; Estrogens; Female; Inflammation; Ovariectomy; Plant Extracts/pharmacology*; Signal Transduction; Rats, Sprague-Dawley; Oxidative Stress; Plant Leaves/chemistry; Primulaceae/chemistry*; Rats; Osteoprotegerin/metabolism; RANK Ligand/metabolism; Receptor Activator of Nuclear Factor-kappa B/metabolism
  9. Chong ZX, Liew WPP, Ong HK, Yong CY, Shit CS, Ho WY, et al.
    Pathol Res Pract, 2021 Sep;225:153565.
    PMID: 34333398 DOI: 10.1016/j.prp.2021.153565
    Middle East respiratory syndrome coronavirus (MERS-CoV) and severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) are two common betacoronaviruses, which are still causing transmission among the human population worldwide. The major difference between the two coronaviruses is that MERS-CoV is now causing sporadic transmission worldwide, whereas SARS-CoV-2 is causing a pandemic outbreak globally. Currently, different guidelines and reports have highlighted several diagnostic methods and approaches which could be used to screen and confirm MERS-CoV and SARS-CoV-2 infections. These methods include clinical evaluation, laboratory diagnosis (nucleic acid-based test, protein-based test, or viral culture), and radiological diagnosis. With the presence of these different diagnostic approaches, it could cause a dilemma to the clinicians and diagnostic laboratories in selecting the best diagnostic strategies to confirm MERS-CoV and SARS-CoV-2 infections. Therefore, this review aims to provide an up-to-date comparison of the advantages and limitations of different diagnostic approaches in detecting MERS-CoV and SARS-CoV-2 infections. This review could provide insights for clinicians and scientists in detecting MERS-CoV and SARS-CoV-2 infections to help combat the transmission of these coronaviruses.
    MeSH terms: Diagnosis, Differential*; Humans; Sensitivity and Specificity*; Pandemics; Middle East Respiratory Syndrome Coronavirus/pathogenicity*
  10. Kamal Eddin FB, Fen YW, Omar NAS, Liew JYC, Daniyal WMEMM
    PMID: 34333400 DOI: 10.1016/j.saa.2021.120202
    Due to the crucial role of dopamine (DA) in health and peripheral nervous systems, it is particularly important to develop an efficient and accurate sensor to monitor and determine DA concentrations for diagnostic purposes and diseases prevention. Up to now, using surface plasmon resonance (SPR) sensors in DA determination is very limited and its application still at the primary stage. In this work, a simple and ultra-sensitive SPR sensor was constructed for DA detection by preparation of chitosan- graphene quantum dots (CS-GQDs) thin film as the sensing layer. Other SPR measurements were conducted using different sensing layers; GQDs, CS for comparison. The proposed thin films were prepared by spin coating technique. The developed CS-GQDs thin film-based SPR sensor was successfully tested in DA concentration range from 0 fM to 1 pM. The designed SPR sensor showed outstanding performance in detecting DA sensitively (S = 0.011°/fM, R2 = 0.8174) with low detection limit of 1.0 fM has been achieved for the first time. The increased angular shift of SPR dip, narrow full width half maximum of the SPR curves, excellent signal-to-noise ratio and figure of merit, and a binding affinity constant (KA) of 2.962 PM-1 demonstrated the potential of this sensor to detect DA with high accuracy. Overall, it was concluded that the proposed sensor would serve as a valuable tool in clinical diagnostic for the serious neurological disorders. This in turns has a significant socio-economic impact.
    MeSH terms: Dopamine; Graphite*; Surface Plasmon Resonance; Quantum Dots*; Chitosan*
  11. Johari IS, Harun N, Sofian ZM, Shoaib M
    Psychopharmacology (Berl), 2021 Nov;238(11):3183-3191.
    PMID: 34333672 DOI: 10.1007/s00213-021-05934-4
    RATIONALE: Kratom (Mitragyna speciosa Korth), a native medicinal plant of Southeast Asia, is proposed to exhibit potential therapeutic value as an opioid substitute. However, studies of its negative emotional states resulting from withdrawal particularly of its main psychoactive compound, mitragynine (MG), are limited.

    OBJECTIVES: Using the pentylenetetrazol (PTZ) discrimination assay, this study aims to investigate the effects of MG in responding to the PTZ stimulus and to assess the generalisation effects of withdrawal from MG to the PTZ stimulus.

    METHODS: Rats (n = 20) were trained on a tandem (FR-10, VI-15) schedule of food reinforcement to press one lever after administration of the anxiogenic compound PTZ (16 mg/kg, i.p.) and an alternate lever after vehicle. Following acute tests, training was suspended, and rats were chronically treated with MG or morphine at 8-h intervals for 9 days and withdrawal was precipitated on the tenth day using naloxone (1 mg/kg, i.p.). The rats were tested for generalisation to PTZ at 2, 8 and 24 h after the last dose of MG or morphine administration.

    RESULTS: Unlike morphine that produced dose-related PTZ-like stimulus, MG at 3, 10, 30 and 45 mg/kg doses showed no substitution to the PTZ discriminative stimulus. In contrast to morphine which produced a time-dependent generalisation to the PTZ stimulus, naloxone did not precipitate withdrawal effects in MG-treated rats as they selected the vehicle lever at three withdrawal time points.

    CONCLUSION: These results demonstrate that MG produces a very different response to morphine withdrawal that is not associated with anxiogenic-like subjective symptoms. These characteristics of MG may provide further support for use as a novel pharmacotherapeutic intervention for managing opioid use disorder.

    MeSH terms: Animals; Naloxone/pharmacology; Pentylenetetrazole; Rats
  12. Nakai M, Ribeiro RV, Stevens BR, Gill P, Muralitharan RR, Yiallourou S, et al.
    Hypertension, 2021 09;78(3):804-815.
    PMID: 34333988 DOI: 10.1161/HYPERTENSIONAHA.121.17288
    [Figure: see text].
    MeSH terms: Gastrointestinal Microbiome/physiology*; Aged; Blood Pressure/physiology; Female; Humans; Male; Middle Aged; Case-Control Studies; Blood Pressure Monitoring, Ambulatory; Metabolic Networks and Pathways/physiology*
  13. Leong SL, Teoh SL, Fun WH, Lee SWH
    Eur J Gen Pract, 2021 Dec;27(1):198-210.
    PMID: 34334095 DOI: 10.1080/13814788.2021.1954616
    BACKGROUND: Task shifting is an approach to help address the shortage of healthcare workers through reallocating human resources but its impact on primary care is unclear.

    OBJECTIVES: To provide an overview of reviews describing task shifts from physicians to allied healthcare workers in primary care and its impact on clinical outcomes.

    METHODS: Six electronic databases were searched up to 15 December 2020, to identify reviews describing task shifting in primary care. Two reviewers independently screened the references for relevant studies, extracted the data and assessed the methodological quality of included reviews using AMSTAR-2.

    RESULTS: Twenty-one reviews that described task shifting in primary care were included. Task shifted include provision of care for people with chronic conditions, medication prescribing, and health education. We found that task shifting could potentially improve several health outcomes such as blood pressure, HbA1c, and mental health while achieving cost savings. Key elements for successful implementation of task shifting include collaboration among all parties, a system for coordinated care, provider empowerment, patient preference, shared decision making, training and competency, supportive organisation system, clear process outcome, and financing.

    CONCLUSION: Evidence suggests that allied healthcare workers such as pharmacists and nurses can potentially undertake substantially expanded roles to support physicians in primary care in response to the changing health service demand. Tasks include providing care to patients, independent prescribing, counselling and education, with comparable quality of care.

    MeSH terms: Delivery of Health Care; Health Personnel*; Humans; Pharmacists; Drug Prescriptions; Primary Health Care*
  14. Mohd Ramdzan MY, Mohd Khalid KF, Che Mood M
    Cardiol Young, 2021 Aug 02.
    PMID: 34334145 DOI: 10.1017/S1047951121003152
    This case illustrates acute myocarditis with complete heart block in a 13-year-old teenager as a rare complication of acute dengue illness. He required urgent temporary pacing with inotropic support and antifailure medications. Complete heart block in dengue myocarditis is an acute but reversible condition. A similar presentation in a dengue-endemic country or with a history of travelling to tropical countries warrants a suspicion of dengue infection.
  15. Yemm H, Robinson DL, Paddick SM, Dotchin C, Goodson ML, Narytnyk A, et al.
    J Alzheimers Dis, 2021;83(1):451-474.
    PMID: 34334407 DOI: 10.3233/JAD-210532
    BACKGROUND: The largest proportion of people with dementia worldwide live in low- and middle- income countries (LMICs), with dementia prevalence continuing to rise. Assessment and diagnosis of dementia involves identifying the impact of cognitive decline on function, usually measured by instrumental activities of daily living (IADLs).

    OBJECTIVE: This review aimed to identify IADL measures which are specifically developed, validated, or adapted for use in LMICs to guide selection of such tools.

    METHODS: A systematic search was conducted (fourteen databases) up to April 2020. Only studies reporting on development, validation, or adaptation of IADL measures for dementia or cognitive impairment among older adults (aged over 50) in LMICs were included. The QUADAS 2 was used to assess quality of diagnostic accuracy studies.

    RESULTS: 22 papers met inclusion criteria; identifying 19 discrete IADL tools across 11 LMICs. These were either translated from IADL measures used in high-income countries (n = 6), translated and adapted for cultural differences (n = 6), or newly developed for target LMIC populations (n = 7). Seven measures were investigated in multiple studies; overall quality of diagnostic accuracy was moderate to good.

    CONCLUSION: Reliability, validity, and accuracy of IADL measures for supporting dementia diagnosis within LMICs was reported. Key components to consider when selecting an IADL tool for such settings were highlighted, including choosing culturally appropriate, time-efficient tools that account for gender- and literacy-bias, and can be conducted by any volunteer with appropriate training. There is a need for greater technical and external validation of IADL tools across different regions, countries, populations, and cultures.

  16. Rahman MB, Salam R, Islam ARMT, Tasnuva A, Haque U, Shahid S, et al.
    Theor Appl Climatol, 2021;146(1-2):125-138.
    PMID: 34334853 DOI: 10.1007/s00704-021-03705-x
    Climate change-derived extreme heat phenomena are one of the major concerns across the globe, including Bangladesh. The appraisal of historical spatiotemporal changes and possible future changes in heat index (HI) is essential for developing heat stress mitigation strategies. However, the climate-health nexus studies in Bangladesh are very limited. This study was intended to appraise the historical and projected changes in HI in Bangladesh. The HI was computed from daily dry bulb temperature and relative humidity. The modified Mann-Kendal (MMK) test and linear regression were used to detect trends in HI for the observed period (1985-2015). The future change in HI was projected for the mid-century (2041-2070) for three Representative Concentration Pathway (RCP) scenarios, RCP 2.6, 4.5, and 8.5 using the Canadian Earth System Model Second Generation (CanESM2). The results revealed a monotonic rise in the HI and extreme caution conditions, especially in the humid summer season for most parts of Bangladesh for the observed period (1985-2015). Future projections revealed a continuous rise in HI in the forthcoming period (2041-2070). A higher and remarkable increase in the HI was projected in the northern, northeastern, and south-central regions. Among the three scenarios, the RCP 8.5 showed a higher projection of HI both in hot and humid summer compared to the other scenarios. Therefore, Bangladesh should take region-specific adaptation strategies to mitigate the impacts of HI.

    Supplementary Information: The online version contains supplementary material available at 10.1007/s00704-021-03705-x.

  17. Mosaad M, Elnaem MH, Cheema E, Ibrahim I, Ab Rahman J, Kori AN, et al.
    Int J Gen Med, 2021;14:3881-3897.
    PMID: 34335052 DOI: 10.2147/IJGM.S320492
    Cancer-associated thrombosis (CAT) is a leading cause of death in cancer patients receiving outpatient chemotherapy. The latest guidelines emphasize stratifying the patients in terms of CAT risks periodically. Multiple risk assessment models (RAMs) were developed to classify patients and guide thromboprophylaxis to high-risk patients. This study aimed to discuss and highlight different RAMs across various malignancy types with their related advantages and disadvantages. A scoping review was conducted using predefined search terms in three scientific databases, including Google Scholar, Science Direct, and PubMed. The search for studies was restricted to original research articles that reported risk assessment models published in the last thirteen years (between 2008 and 2021) to cover the most recently published evidence following the development of the principal risk assessment score in 2008. Data charting of the relevant trials, scores, advantages, and disadvantages were done iteratively considering the malignancy type. Of the initially identified 1115 studies, 39 studies with over 67,680 patients were included in the review. In solid organ malignancy, nine risk assessment scores were generated. The first and most known Khorana risk score still offers the best available risk assessment model when used for high-risk populations with a threshold of 2 and above. However, KRS has a limitation of failure to stratify low-risk patients. The COMPASS-CAT score showed the best performance in the lung carcinoma patients who have a higher prevalence of thrombosis than other malignancy subtypes. In testicular germ cell tumours, Bezan et al RAM is a validated good discriminatory RAM for this malignancy subtype. CAT in haematological malignancy seems to be under-investigated and has multiple disease-related, and treatment-related confounding factors. AL-Ani et al score performed efficiently in acute leukemia. In multiple myeloma, both SAVED and IMPEDED VTE scores showed good performance. Despite the availability of different disease-specific scores in lymphoma-related thrombosis, the standard of care needs to be redefined.
  18. Abdul Kadir NB, Mohd RH
    Front Psychol, 2021;12:641876.
    PMID: 34335359 DOI: 10.3389/fpsyg.2021.641876
    A substantial body of evidence supports Lerner and colleagues' 5Cs model of positive youth development (PYD) in the United States (U.S.). Nonetheless, it remains unclear whether the 5Cs can be used to identify positive development in the under-researched Asian contexts, such as Malaysia. Thus, this study examined the 5Cs of PYD (competence, confidence, character, connection, and caring) and their importance to purpose in life, hope, and well-being in a sample of emerging adult undergraduate university students in Malaysia. Data were collected from 400 participants from 15 Malaysian universities (132 males, 268 females; ages ranged from 18 to 26 years old, M = 22). A hierarchical multiple regression analysis indicated that two of the 5Cs of PYD (confidence and connection) as well as hope were important to explaining variation in well-being. The findings imply that there are strong links between PYD, especially confidence and connection, and well-being, while purpose in life and hope were indirectly related to the 2Cs (confidence and connection) of PYD and well-being. Therefore, mental health professionals are encouraged to review and redefine their treatment design to include confidence, connection, purpose in life and hope when working with Malaysian emerging adult university students.
  19. Shazia A, Xuan TZ, Chuah JH, Usman J, Qian P, Lai KW
    PMID: 34335736 DOI: 10.1186/s13634-021-00755-1
    Coronavirus disease of 2019 or COVID-19 is a rapidly spreading viral infection that has affected millions all over the world. With its rapid spread and increasing numbers, it is becoming overwhelming for the healthcare workers to rapidly diagnose the condition and contain it from spreading. Hence it has become a necessity to automate the diagnostic procedure. This will improve the work efficiency as well as keep the healthcare workers safe from getting exposed to the virus. Medical image analysis is one of the rising research areas that can tackle this issue with higher accuracy. This paper conducts a comparative study of the use of the recent deep learning models (VGG16, VGG19, DenseNet121, Inception-ResNet-V2, InceptionV3, Resnet50, and Xception) to deal with the detection and classification of coronavirus pneumonia from pneumonia cases. This study uses 7165 chest X-ray images of COVID-19 (1536) and pneumonia (5629) patients. Confusion metrics and performance metrics were used to analyze each model. Results show DenseNet121 (99.48% of accuracy) showed better performance when compared with the other models in this study.
  20. Sharifi-Rad J, Quispe C, Imran M, Rauf A, Nadeem M, Gondal TA, et al.
    Oxid Med Cell Longev, 2021;2021:3268136.
    PMID: 34336089 DOI: 10.1155/2021/3268136
    Genistein is an isoflavone first isolated from the brooming plant Dyer's Genista tinctoria L. and is widely distributed in the Fabaceae family. As an isoflavone, mammalian genistein exerts estrogen-like functions. Several biological effects of genistein have been reported in preclinical studies, such as the antioxidant, anti-inflammatory, antibacterial, and antiviral activities, the effects of angiogenesis and estrogen, and the pharmacological activities on diabetes and lipid metabolism. The purpose of this review is to provide up-to-date evidence of preclinical pharmacological activities with mechanisms of action, bioavailability, and clinical evidence of genistein. The literature was researched using the most important keyword "genistein" from the PubMed, Science, and Google Scholar databases, and the taxonomy was validated using The Plant List. Data were also collected from specialized books and other online resources. The main positive effects of genistein refer to the protection against cardiovascular diseases and to the decrease of the incidence of some types of cancer, especially breast cancer. Although the mechanism of protection against cancer involves several aspects of genistein metabolism, the researchers attribute this effect to the similarity between the structure of soy genistein and that of estrogen. This structural similarity allows genistein to displace estrogen from cellular receptors, thus blocking their hormonal activity. The pharmacological activities resulting from the experimental studies of this review support the traditional uses of genistein, but in the future, further investigations are needed on the efficacy, safety, and use of nanotechnologies to increase bioavailability and therapeutic efficacy.
    MeSH terms: Humans; Anticarcinogenic Agents/pharmacology; Anticarcinogenic Agents/therapeutic use*; Genistein/pharmacology; Genistein/therapeutic use*
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