Displaying publications 1421 - 1440 of 55674 in total

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  1. Ali A, Akhtar J, Ahmad U, Basheer AS, Jaiswal N, Jahan A
    PMID: 36374840 DOI: 10.1615/CritRevTherDrugCarrierSyst.2022039241
    Colorectal cancer (CRC) is the second most common cause of cancer related deaths in the United States. However, more than half of all incidence and mortality are caused by risk factors such as smoking, unhealthy diet, excessive alcohol consumption, inactivity, and excess weight, and thus can be protected. CRC morbidity and mortality can also be reduced by proper screening and monitoring. Over the last few years the amalgamation of nanotechnology with healthcare system has brought about the potential to administer the delivery of certain therapeutic drugs to cancer cells without affecting normal tissues. Recent strategies combine the diagnostic and therapeutic approaches to improve the overall performance of cancer nanomedicines. Targeted cancer nanotherapeutics provides many more opportunities for the selective detection of toxic chemicals within cancer cells. The distinctive features of nanoparticles, such as their small size, large surface to volume ratio, and the ability of nanoparticles to achieve several interactions of ligands at surface, offer great benefits of nanomedicines to treat various types of cancers. This review highlights the molecular mechanisms of colorectal carcinogenesis and discusses various key concepts in the development of nanotherapeutics targeted for CRC treatment.
    Matched MeSH terms: Humans
  2. Muhammad-Ikmal MK, Masnon NA, Hayati F, Wan HItam WH
    BMJ Case Rep, 2022 Nov 11;15(11).
    PMID: 36368736 DOI: 10.1136/bcr-2022-250108
    A woman in her 70s presented with reduced vision in her left eye, progressive narrowing of right eye opening for 6 months and anosmia. On examination, she had right enophthalmos and pseudoptosis with inferior globe dystopia. Her visual acuity was 6/9 and nil light perception in the right and left eyes, respectively. Extraocular muscle examination showed limited right up gaze. Funduscopy showed a normal right optic disc and left optic disc atrophy. Systemic examination revealed left breast ulceration with skin tethering. CT revealed an infiltrative mass invading the ethmoidal sinuses, frontal sinuses and both orbits. A histological diagnosis of infiltrative ductal breast carcinoma was made after nasal endoscopic and left breast biopsy. She underwent palliative chemoradiotherapy and survived with good disease control after 1 year. Metastatic carcinoma is a differential diagnosis of a sino-orbital mass, and comprehensive clinical assessment is indicated for all patients presenting with non-acute eye injury.
    Matched MeSH terms: Humans
  3. Dey AD, Bigham A, Esmaeili Y, Ashrafizadeh M, Moghaddam FD, Tan SC, et al.
    Semin Cancer Biol, 2022 11;86(Pt 2):396-419.
    PMID: 35700939 DOI: 10.1016/j.semcancer.2022.06.003
    Chemotherapy is the first choice in the treatment of cancer and is always preferred to other approaches such as radiation and surgery, but it has never met the need of patients for a safe and effective drug. Therefore, new advances in cancer treatment are now needed to reduce the side effects and burdens associated with chemotherapy for cancer patients. Targeted treatment using nanotechnology are now being actively explored as they could effectively deliver therapeutic agents to tumor cells without affecting normal cells. Dendrimers are promising nanocarriers with distinct physiochemical properties that have received considerable attention in cancer therapy studies, which is partly due to the numerous functional groups on their surface. In this review, we discuss the progress of different types of dendrimers as delivery systems in cancer therapy, focusing on the challenges, opportunities, and functionalities of the polymeric molecules. The paper also reviews the various role of dendrimers in their entry into cells via endocytosis, as well as the molecular and inflammatory pathways in cancer. In addition, various dendrimers-based drug delivery (e.g., pH-responsive, enzyme-responsive, redox-responsive, thermo-responsive, etc.) and lipid-, amino acid-, polymer- and nanoparticle-based modifications for gene delivery, as well as co-delivery of drugs and genes in cancer therapy with dendrimers, are presented. Finally, biosafety concerns and issues hindering the transition of dendrimers from research to the clinic are discussed to shed light on their clinical applications.
    Matched MeSH terms: Humans
  4. Shigli K, Nayak SS, Lagali-Jirge V, Kusurkar RA, Nerali JT, Oginni FO
    Gerontol Geriatr Educ, 2022 04 15;43(4):468-481.
    PMID: 35422199 DOI: 10.1080/02701960.2022.2058936
    The proportion of older adults is on the rise. Management of dental problems in this group is different from the general population, and hence requires special training. Gerodontology is yet to find its place in the Indian dental curriculum. A lack of training would result in inadequate care delivery. In this article, we share our views on the need for inclusion of the subject, potential challenges, and a guide for incorporation of gerodontology in undergraduate and postgraduate curriculum in the Indian dental institutes. We propose a framework based on the salient features of Kern's 6-step approach for curriculum development and Kotter's 8-step change management model. Some features are common to both the models. A combination of these models includes the following salient features: Problem identification and general needs assessment, beginning with a sense of urgency and targeted needs assessment, communication of the vision for change, working in guided coalitions and defining clear goals and objectives, adopting the relevant educational strategies, implementation strategies to enable change and generating short-term wins, evaluating the effectiveness of the curricular reform and sustaining and anchoring the change. The proposed framework may also be useful for countries where gerodontology is yet to be implemented.
    Matched MeSH terms: Humans
  5. Yahya I, Hassan MA, Maidin NNM, Mohamed MA
    Sensors (Basel), 2022 Oct 26;22(21).
    PMID: 36365910 DOI: 10.3390/s22218212
    A thin film of single-walled carbon nanotube (SWCNT) network field-effect transistor (FET) was fabricated by a simple, fast, and reliable deposition method for electronic applications. This study aims to develop a method for fabricating a thin film of random SWCNTs to be used as a transducer to detect human serum albumin (HSA) in biosensor applications. The random SWCNT network was deposited using the airbrush technique. The morphology of the CNT network was examined by utilising atomic force microscopy (AFM) and field-emission scanning electron microscopy (FESEM), while electrical characteristics were analysed using three-terminal IV measurements. The thin film (SWCNT network) was applied as a transducer to detect human serum albumin (HSA) based on its covalent interaction with antibodies. HSA plays a significant part in the physiological functions of the human body. The surface alteration of the SWCNTs was verified using Fourier transform infrared (FTIR) spectroscopy. Electrical current-voltage measurements validated the surface binding and HSA detection. The biosensor linearly recorded a 0.47 fg/mL limit of detection (LOD) and a high sensitivity of 3.44 μA (g/mL)-1 between 1 fg/mL and 10 pg/mL. This device can also be used to identify a genuine HSA despite interference from other biomolecules (i.e., bovine serum albumin (BSA)), thus demonstrating the random SWCNT-FET immunosensor ability to quantify HSA in a complex biological environment.
    Matched MeSH terms: Humans
  6. Alhammadi SA, Tayeh BA, Alaloul WS, Jouda AF
    Int J Occup Saf Ergon, 2022 Dec;28(4):2631-2644.
    PMID: 34965852 DOI: 10.1080/10803548.2021.2013034
    Objectives. This research intends to investigate the responsibilities of the parties engaged in the implementation phase of the infrastructure projects in occupational health and safety, i.e., the consultant and contractor. Methods. A questionnaire was developed through the selection and modification of the responsibilities from the literature review. Results. The statistical analysis results show that the consultants and contractors both ranked the item 'The owner requires the contractor to implement the occupational safety standards within the bid' first in the owner responsibilities, having 0.67 relative importance index (RII). In the responsibilities of the consultant, the first ranked item was 'The consultant has a role in adopting occupational safety plans and contingency plans', having 0.66 RII. In the responsibilities of the contractor, the first ranked item was 'The contractor shall provide the insurance cover for all project crews', having 0.71 RII. In the responsibilities of the workers, the first ranked item was 'Workers know the handling of tools and equipment within the project', having 0.59 RII. Conclusion. Overall, there was general agreement between consultants and contractors to classify and arrange items because both face the same conditions and have the same working environment.
    Matched MeSH terms: Humans
  7. Thong KS, Seed HF
    Med J Malaysia, 2021 11;76(6):876-880.
    PMID: 34806676
    INTRODUCTION: The Optimal Health Program (OHP) is a collaborative self-management program that promotes clients to be actively involved in their own healthcare and overall wellbeing. Program Kesihatan Optimum (SANUBARI) is a Malay version of the OHP after a translational process and cultural adaptation by psychiatrists, clinical psychologist and family medicine specialists in 2017. The program is of a low intensity, patient-centred program, advocating self-health management to improve health literacy by enhancing self-efficacy, building strengths and values, and initiating change and planning, ultimately enhancing wellbeing of people. The programme can be used as a form of early psychosocial intervention during the current pandemic in maintaining the general mental wellbeing of COVID-19 patients.

    METHODS: This is an open labelled interventional study of a virtual brief psychosocial intervention, called SANUBARI. The program was conducted among COVID-19 patients hospitalized in the COVID-19 wards of two centres from May 2020 until August 2020. Inclusion criteria include patients aged eighteen years and above, diagnosed with COVID-19, medically stable, speaking and reading Bahasa Melayu or English. All study subjects attended two sessions on OHP via telecommunication method and answered questionnaires (General Self-Efficacy (GSE) Scale, Patient Health Questionnaire and Generalized Anxiety Disorder Questionnaire) via computer-assisted self-interview. Data collection was done before the start of the intervention, at the end of the intervention and a month post-intervention.

    RESULTS: A total of 37 patients were recruited and more than half of the subjects were males (62.2%), single (75.5%) and from the Malay ethnicity (78.4%). Seventy-three per cent of subjects had received tertiary education, and most of them were students reflecting a higher unemployment status (73%). Most subjects have no comorbid chronic medical illness (89.2%), and none has a comorbid psychiatric illness. Comparison of the GSE score across 3-time points (preintervention, immediate post-intervention and a month postintervention) showed statistically significant improvement in the mean total GSE score immediate and a month postintervention as compared to the pre-intervention; from mean total GSE score of 29.78 pre-intervention to 34.73 (mean difference 4.946, 95% Confidence Interval 95%CI: 3.361, 6.531) immediate post-intervention and 33.08 (mean difference 3.297, 95%CI: 1.211, 5.348) a month post intervention. There was no significant association between the socio-demographic or clinical data, depressive and anxiety symptoms, and changes in GSE scores over three time points.

    CONCLUSION: COVID-19 patients improved their self-efficacy levels after the virtual brief OHP intervention, and it maintained a month post-intervention, protecting them from psychological stress and ultimately enhances wellbeing during this coronavirus pandemic.

    Matched MeSH terms: Humans
  8. Saw YT, Lee HG
    Med J Malaysia, 2021 11;76(6):918-920.
    PMID: 34806685
    The current pandemic of coronavirus disease 2019 (COVID- 19) poses a bigger challenge to the population in tropical countries where dengue fever is also endemic as both diseases share similar clinical and laboratory features. In COVID-19, hyperferritinaemia is associated with severe disease and clinical outcome while in dengue fever, hyperferritinaemia is a key feature of haemophagocytic lymphohistiocytosis (HLH), which is a complication with high mortality. In this case report, we present a case of coinfection of COVID-19 and dengue with hyperferritinaemia in Queen Elizabeth Hospital, Sabah, Malaysia.
    Matched MeSH terms: Humans
  9. Nasir NAA, Sadikan MZ, Agarwal R
    Asia Pac J Clin Nutr, 2021 Sep;30(3):537-555.
    PMID: 34587713 DOI: 10.6133/apjcn.202109_30(3).0020
    Tocotrienols have been reported to exert anticancer, anti-inflammatory, antioxidant, cardio-protective and boneprotective effects through modulation of NFκB signalling pathway. The objective of this systematic review is to evaluate available literature showing the effect of tocotrienols on NFκB signalling pathway and identify the potential mechanisms involved. A comprehensive search was conducted using PubMed and SCOPUS databases using the keywords "tocotrienol" and "NFκB" or "nuclear factor kappa b". Main inclusion criteria were English language original articles showing the effect of tocotrienol on NFκB signalling pathway. Fifty-nine articles were selected from the total of 117 articles initially retrieved from the literature search. Modulation of regulatory proteins and genes such as inhibition of farnesyl prenyl transferase were found to be the mechanisms underlying the tocotrienol-induced suppression of NFκB activation.
    Matched MeSH terms: Humans
  10. Haranal M, Febrianti Z, Latiff HA, Rahman SA, Sivalingam S
    Asian Cardiovasc Thorac Ann, 2021 Oct;29(8):816-818.
    PMID: 33641433 DOI: 10.1177/0218492321998500
    Primary cardiac tumors are one of the rare causes of intracardiac masses in pediatric population. Cardiac papillary fibroelastomas are benign cardiac tumors with predilection for valvular endocardium, and the presentation is dictated by the cardiac structure involved and the tumor characteristics. We report an infant with cardiac papillary fibroelastoma manifesting as an asymptomatic left ventricular outflow tract mass. This case is being presented to emphasize the rare occurrence of cardiac papillary fibroelastoma in pediatric population and to be cognizant of this entity when considering differential diagnosis of intracardiac masses in this subgroup.
    Matched MeSH terms: Humans
  11. Rabby MII, Hossain F, Akhi IJ, Huda SN
    Asia Pac J Public Health, 2022 01;34(1):148.
    PMID: 34550014 DOI: 10.1177/10105395211048327
    Matched MeSH terms: Humans
  12. Jayasundara P, Peariasamy KM, Law KB, Abd Rahim KNK, Lee SW, Ghazali IMM, et al.
    Epidemics, 2021 12;37:100517.
    PMID: 34739906 DOI: 10.1016/j.epidem.2021.100517
    INTRODUCTION: As of 3rd June 2021, Malaysia is experiencing a resurgence of COVID-19 cases. In response, the federal government has implemented various non-pharmaceutical interventions (NPIs) under a series of Movement Control Orders and, more recently, a vaccination campaign to regain epidemic control. In this study, we assessed the potential for the vaccination campaign to control the epidemic in Malaysia and four high-burden regions of interest, under various public health response scenarios.

    METHODS: A modified susceptible-exposed-infectious-recovered compartmental model was developed that included two sequential incubation and infectious periods, with stratification by clinical state. The model was further stratified by age and incorporated population mobility to capture NPIs and micro-distancing (behaviour changes not captured through population mobility). Emerging variants of concern (VoC) were included as an additional strain competing with the existing wild-type strain. Several scenarios that included different vaccination strategies (i.e. vaccines that reduce disease severity and/or prevent infection, vaccination coverage) and mobility restrictions were implemented.

    RESULTS: The national model and the regional models all fit well to notification data but underestimated ICU occupancy and deaths in recent weeks, which may be attributable to increased severity of VoC or saturation of case detection. However, the true case detection proportion showed wide credible intervals, highlighting incomplete understanding of the true epidemic size. The scenario projections suggested that under current vaccination rates complete relaxation of all NPIs would trigger a major epidemic. The results emphasise the importance of micro-distancing, maintaining mobility restrictions during vaccination roll-out and accelerating the pace of vaccination for future control. Malaysia is particularly susceptible to a major COVID-19 resurgence resulting from its limited population immunity due to the country's historical success in maintaining control throughout much of 2020.

    Matched MeSH terms: Humans
  13. Pyvovar SM, Rudyk IS, Lozykc TV
    Pol Merkur Lekarski, 2021 Dec 16;49(294):448-452.
    PMID: 34919092
    The analysis of literature data reflecting the issues of the pathology of the cardiovascular system in mucopolysaccharidosis are presented. It was found out that heart and vessels damage is one of the cardinal signs of this pathology, often leading to death. Cardiac pathology is recorded in all types of mucopolysaccharidosis, but it is most significant for patients with three clinical variants of Hurler syndrome, Hunter, and Maroteaux-Lamy syndromes. Typical signs of damage to the cardiovascular system in mucopolysaccharidosis are thickening of the valves with the development of their dysfunction (while the severity of damage to the left-sided valves is more pronounced), myocardial hypertrophy, conduction disturbance, coronary artery disease, arterial hypertension. Many researchers emphasize the difficulties of clinical and functional examination of the cardiovascular system in patients with mucopolysaccharidosis, which is due to the presence of physical and intellectual limitations in patients, ands a gradual increase in symptoms. For the treatment of cardiovascular pathology at mucopolysaccharidosis, medical and surgical methods are used, including enzyme replacement therapy and stem cell transplantation.
    Matched MeSH terms: Humans
  14. Ahmad WMAW, Noor NFM, Shaari R, Nawi MAA, Ghazali FMM, Aleng NA, et al.
    J Craniofac Surg, 2021 Jun 01;32(4):1500-1503.
    PMID: 33852515 DOI: 10.1097/SCS.0000000000007435
    ABSTRACT: Oral and maxillofacial fractures are the most common injuries among multiple trauma. About 5% to 10% of trauma patients having facial fractures. The objectives of this case study are to focus the most common mid-face fractures types' and to determine the relationship of the midface fracture in maxillofacial trauma among the patient who attended the outpatient clinic in a Hospital Universiti Sains Malaysia. In this research paper, an advanced statistical tool was chosen through the multilayer perceptron neural network methodology (MLPNN). Multilayer perceptron neural network methodology was applied to determine the most associated predictor important toward maxillary bone injury. Through the predictor important classification analysis, the relationship of each bone will be determined, and sorting according to their contribution. After sorting the most associated predictor important toward maxillary bone injury, the validation process will be applied through the value of training, testing, and validation. The input variables of MLPNN were zygomatic complex fracture, orbital wall fracture, nasal bone fracture, frontal bone fracture, and zygomatic arch fracture. The performance of MLPNN having high accuracy with 82.2%. As a conclusion, the zygomatic complex fracture is the most common fracture trauma among the patient, having the most important association toward maxillary bone fracture. This finding has the highest potential for further statistical modeling for education purposes and the decision-maker among the surgeon.
    Matched MeSH terms: Humans
  15. Cournia Z, Soares TA, Wahab HA, Amaro RE
    J Chem Inf Model, 2021 11 22;61(11):5305-5306.
    PMID: 34668709 DOI: 10.1021/acs.jcim.1c01185
    Matched MeSH terms: Humans
  16. Yii ESS, Azli AW, Sitaram PN
    J Med Case Rep, 2022 Jan 04;16(1):17.
    PMID: 34983625 DOI: 10.1186/s13256-021-03232-3
    BACKGROUND: Sodium-glucose cotransporter 2 inhibitors are among the new-generation oral antihyperglycemic agents that have been used in the treatment of type 2 diabetes mellitus. With the recent coronavirus disease 2019 pandemic and rise of cases in the third wave, diagnosis of life-threatening euglycemic diabetic ketoacidosis may easily be overlooked or missed.

    CASE PRESENTATION: We present the case of a 37-year-old Malay gentleman with underlying type 2 diabetes mellitus on empagliflozin, who presented to our hospital with symptomatic coronavirus disease 2019 infection and diabetic ketoacidosis. He developed severe rebound euglycemic diabetic ketoacidosis due to the continuous usage of empagliflozin for glycemic control alongside intravenous insulin.

    CONCLUSIONS: Physicians should have a high index of suspicion in diagnosing and managing euglycemic diabetic ketoacidosis, including withholding treatment of sodium-glucose cotransporter 2 inhibitors during the acute management of diabetic ketoacidosis.

    Matched MeSH terms: Humans
  17. POLUNIN I
    Br J Dermatol, 1952 Oct;64(10):378-84.
    PMID: 12987563
    Matched MeSH terms: Humans
  18. Musa A, Lane AR, Ellison A
    Q J Exp Psychol (Hove), 2022 Feb;75(2):277-288.
    PMID: 34609221 DOI: 10.1177/17470218211050280
    Visual search is a task often used in the rehabilitation of patients with cortical and non-cortical visual pathologies such as visual field loss. Reduced visual acuity is often comorbid with these disorders, and it remains poorly defined how low visual acuity may affect a patient's ability to recover visual function through visual search training. The two experiments reported here investigated whether induced blurring of vision (from 6/15 to 6/60) in a neurotypical population differentially affected various types of feature search tasks, whether there is a minimal acceptable level of visual acuity required for normal search performance, and whether these factors affected the degree to which participants could improve with training. From the results, it can be seen that reducing visual acuity did reduce search speed, but only for tasks where the target was defined by shape or size (not colour), and only when acuity was worse than 6/15. Furthermore, searching behaviour was seen to improve with training in all three feature search tasks, irrespective of the degree of blurring that was induced. The improvement also generalised to a non-trained search task, indicating that an enhanced search strategy had been developed. These findings have important implications for the use of visual search as a rehabilitation aid for partial visual loss, indicating that individuals with even severe comorbid blurring should still be able to benefit from such training.
    Matched MeSH terms: Humans
  19. Myint PK, Tan MP, Khaw KT
    Geriatr Gerontol Int, 2022 01;22(1):91-92.
    PMID: 34755445 DOI: 10.1111/ggi.14308
    Matched MeSH terms: Humans
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