Displaying publications 3621 - 3640 of 55738 in total

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  1. Mat Lazim N, Elliott M, Wykes J, Clark J
    ANZ J Surg, 2021 Dec;91(12):2617-2623.
    PMID: 33634950 DOI: 10.1111/ans.16622
    Historically, patients with head and neck squamous cell carcinoma (HNSCC) with distant metastases were regarded as palliative. Oligometastasis (OM) refers to patients with a limited number of distant metastatic deposits. Treatment of patients with OMs has been reported in patients with lung, colon, breast, prostate and brain malignancies. Selected patients with oligometastatic HNSCC have a higher probability of durable disease control and cure and these patients should be treated aggressively. Treatment options for patients with HNSCC OMs include single or combinations of the three arms of cancer treatment, that is surgery, radiotherapy and chemotherapy/immunotherapy. To date, there are limited studies reporting the management of OM with head and neck malignancy. This review will give insights into the management of OMs in HNSCC.
    Matched MeSH terms: Humans
  2. Lee WWH, Cheong YK, Teh CL, Wan SA, Chuah SL, Singh BSM
    Clin Rheumatol, 2021 11;40(11):4775-4777.
    PMID: 34510293 DOI: 10.1007/s10067-021-05920-3
    Matched MeSH terms: Humans
  3. Osman A, Via G, Sallehuddin RM, Ahmad AH, Fei SK, Azil A, et al.
    Eur Heart J Acute Cardiovasc Care, 2021 Dec 18;10(10):1103-1111.
    PMID: 34632507 DOI: 10.1093/ehjacc/zuab078
    AIMS : Non-invasive ventilation represents an established treatment for acute cardiogenic pulmonary oedema (ACPO) although no data regarding the best ventilatory strategy are available. We aimed to compare the effectiveness of helmet CPAP (hCPAP) and high flow nasal cannula (HFNC) in the early treatment of ACPO.

    METHODS AND RESULTS : Single-centre randomized controlled trial of patients admitted to the emergency department due to ACPO with hypoxemia and dyspnoea on face mask oxygen therapy. Patients were randomly assigned with a 1:1 ratio to receive hCPAP or HFNC and FiO2 set to achieve an arterial oxygen saturation >94%. The primary outcome was a reduction in respiratory rate; secondary outcomes included changes in heart rate, PaO2/FiO2 ratio, Heart rate, Acidosis, Consciousness, Oxygenation, and Respiratory rate (HACOR) score, Dyspnoea Scale, and intubation rate. Data were collected before hCPAP/HFNC placement and after 1 h of treatment. Amongst 188 patients randomized, hCPAP was more effective than HFNC in reducing respiratory rate [-12 (95% CI; 11-13) vs. -9 (95% CI; 8-10), P 

    Matched MeSH terms: Humans
  4. Rath A, Wong M, Wong N, Brockman R
    J Dent Educ, 2021 Dec;85 Suppl 3:2049-2051.
    PMID: 33893747 DOI: 10.1002/jdd.12635
    Matched MeSH terms: Humans
  5. Wahyudi F, Aghakhanian F, Rahman S, Teo YY, Szpak M, Dhaliwal J, et al.
    BMC Bioinformatics, 2021 Dec 18;22(1):604.
    PMID: 34922440 DOI: 10.1186/s12859-021-04506-9
    BACKGROUND: In population genomics, polymorphisms that are highly differentiated between geographically separated populations are often suggestive of Darwinian positive selection. Genomic scans have highlighted several such regions in African and non-African populations, but only a handful of these have functional data that clearly associates candidate variations driving the selection process. Fine-Mapping of Adaptive Variation (FineMAV) was developed to address this in a high-throughput manner using population based whole-genome sequences generated by the 1000 Genomes Project. It pinpoints positively selected genetic variants in sequencing data by prioritizing high frequency, population-specific and functional derived alleles.

    RESULTS: We developed a stand-alone software that implements the FineMAV statistic. To graphically visualise the FineMAV scores, it outputs the statistics as bigWig files, which is a common file format supported by many genome browsers. It is available as a command-line and graphical user interface. The software was tested by replicating the FineMAV scores obtained using 1000 Genomes Project African, European, East and South Asian populations and subsequently applied to whole-genome sequencing datasets from Singapore and China to highlight population specific variants that can be subsequently modelled. The software tool is publicly available at https://github.com/fadilla-wahyudi/finemav .

    CONCLUSIONS: The software tool described here determines genome-wide FineMAV scores, using low or high-coverage whole-genome sequencing datasets, that can be used to prioritize a list of population specific, highly differentiated candidate variants for in vitro or in vivo functional screens. The tool displays these scores on the human genome browsers for easy visualisation, annotation and comparison between different genomic regions in worldwide human populations.

    Matched MeSH terms: Humans
  6. Al-Buriahi AK, Al-Gheethi AA, Senthil Kumar P, Radin Mohamed RMS, Yusof H, Alshalif AF, et al.
    Chemosphere, 2022 Jan;287(Pt 2):132162.
    PMID: 34826899 DOI: 10.1016/j.chemosphere.2021.132162
    Rhodamine B (RhB) dye used in the textile industries is associated with carcinogenic and neurotoxic effects with a high potential to cause a variety of human diseases. Semiconductor photocatalysts synthesised through agriculture waste extracts exhibited high efficiency for RhB removal. The current review aimed to explore the efficiency and mechanism of RhB degradation using different photocatalysts that have been used in recent years, as well as the effect of various factors on the removal process. Zinc oxide nanoparticles (ZnO NPs) synthesised from plant extract is the most effective for the RhB degradation with the efficiency reaching 100% after 210 min. The photocatalysis process depends on the pH because pH changes the balance of water dissociation, which impacts the formation of hydroxyl radicals and the surface load of the catalyst. Analysis using Jupyter Notebook revealed a strong correlation between the concentration of ZnO NPs and the photocatalysis efficiency (R = 0.72). These findings reveal that man-sized photocatalysts have a high potential for removing RhB from the wastewater.
    Matched MeSH terms: Humans
  7. Sharma A, Sethi G, Tambuwala MM, Aljabali AAA, Chellappan DK, Dua K, et al.
    Curr Neuropharmacol, 2021;19(2):248-264.
    PMID: 32348224 DOI: 10.2174/1570159X18666200429013041
    All mammalian cells exhibit circadian rhythm in cellular metabolism and energetics. Autonomous cellular clocks are modulated by various pathways that are essential for robust time keeping. In addition to the canonical transcriptional translational feedback loop, several new pathways of circadian timekeeping - non-transcriptional oscillations, post-translational modifications, epigenetics and cellular signaling in the circadian clock - have been identified. The physiology of circadian rhythm is expansive, and its link to the neurodegeneration is multifactorial. Circadian rhythm disruption is prevelant in contamporary society where light-noise, shift-work, and transmeridian travel are commonplace, and is also reported from the early stages of Alzheimer's disease (AD). Circadian alignment by bright light therapy in conjunction with chronobiotics is beneficial for treating sundowning syndrome and other cognitive symptoms in advanced AD patients. We performed a comprehensive analysis of the clinical and translational reports to review the physiology of the circadian clock, delineate its dysfunction in AD, and unravel the dynamics of the vicious cycle between two pathologies. The review delineates the role of putative targets like clock proteins PER, CLOCK, BMAL1, ROR, and clock-controlled proteins like AVP, SIRT1, FOXO, and PK2 towards future approaches for management of AD. Furthermore, the role of circadian rhythm disruption in aging is delineated.
    Matched MeSH terms: Humans
  8. Anis S, Masood Khan M, Ali Z, Khan A, Arsalan HM, Naeem S, et al.
    Pak J Pharm Sci, 2021 Sep;34(5):1821-1836.
    PMID: 34803021
    The COVID-19 epidemic is considered the most important health disaster of the century and the largest humanitarian crisis since World War II. In December 2019, a new respiratory disease/disorder was discovered in Wuhan, Hubei province, China and World Health Organization named it COVID-19 (coronavirus 2019). It has been diagnosed with a new class of corona virus, called SARS-CoV-2 (a serious respiratory disease). According to the history of human civilization it is affected by the incidence of disease outbreaks caused by the number of viruses. Covid-19 is rapidly spreading across the globe, due to which mankind faces major health, economic, environmental and social challenges. The outbreak of coronavirus is seriously affecting the global economy. Almost all nations have problems limiting the spread of the disease by screening and treating patients, setting up suspects by keeping in touch, blocking large gatherings, maintaining full or partial closure etc. This paper describes the impact of COVID-19 on society and the global environment, and the ways in which the disease is likely to be controlled have been discussed.
    Matched MeSH terms: Humans
  9. Aghamohammadi N, Ramakreshnan L, Fong CS, Noor RM, Hanif NR, Sulaiman NM
    Sci Total Environ, 2022 Feb 01;806(Pt 1):150331.
    PMID: 34571225 DOI: 10.1016/j.scitotenv.2021.150331
    The stakeholders' perceptions on the impacts of Urban Heat Island (UHI) are critical for reducing exposure and influencing their response to interventions that are aimed at encouraging a behaviour change. A proper understanding of the UHI impacts on the society, economy and environment is deemed an essential motivating factor for the stakeholders to work towards UHI mitigations in the local context. This study adopted an inductive qualitative approach using Stakeholder Dialogue Sessions (SDSs) to assess the perceived impacts of UHI among various stakeholders, comprising policy makers, academicians, developers and Non-Governmental Organizations (NGO), in a tropical metropolitan city. The results revealed five themes such as deterioration of public health, acceleration of urban migration patterns and spending time in cooler areas, reduction of workers' productivity, increased energy consumption by the households and deterioration of environmental quality and natural resources that were categorized into social, economic and environmental impacts. Although most of the stakeholders were quite unfamiliar with the term UHI, they still display a good understanding of the potential impacts of UHI due to their posteriori knowledge and ability to rationalize the physical condition of the environment in which they live. The findings provide useful insights and valuable information to the local authorities to tailor necessary actions and educational campaigns to increase UHI awareness among the stakeholders. Being among the earlier studies to use a qualitative approach to attain the aforementioned objective, the findings are crucial to determine the level of understanding of the stakeholders on the impact of UHI. Through this study, the authors have highlighted the gaps and needs for knowledge improvements aimed at behaviour change among the stakeholders.
    Matched MeSH terms: Humans
  10. Seng Beng T, Ting Ting T, Karupiah M, Xin Ni C, Li Li H, Chong Guan N, et al.
    Omega (Westport), 2021 Dec;84(2):512-524.
    PMID: 32019387 DOI: 10.1177/0030222820903221
    Suffering experiences are common phenomena in palliative care. In this study, we aim to explore the different patterns of suffering in palliative care. Adult palliative care patients were recruited from the University of Malaya Medical Centre. Suffering scores were charted 3 times a day for a week. The characteristics of the suffering charts were analyzed using SPSS. The patterns of suffering were analyzed using structural pattern recognition. A total of 53 patients participated. The overall trends of suffering were downward (64%), upward (19%), and stable (17%). Median minimum and maximum suffering scores were 2/10 and 6/10, with an average of 3.6/10. Nine patterns of suffering were recognized from categorizing two key characteristics of suffering (intensity and fluctuation)-named S1 to S9. Understanding the different patterns of suffering may lead to better suffering management.
    Matched MeSH terms: Humans
  11. Momtazmanesh S, Samieefar N, Uddin LQ, Ulrichs T, Kelishadi R, Roudenok V, et al.
    Adv Exp Med Biol, 2021;1318:911-921.
    PMID: 33973219 DOI: 10.1007/978-3-030-63761-3_51
    In the COVID-19 era, while we are encouraged to be physically far away from each other, social and scientific networking is needed more than ever. The dire consequences of social distancing can be diminished by social networking. Social media, a quintessential component of social networking, facilitates the dissemination of reliable information and fighting against misinformation by health authorities. Distance learning, telemedicine, and telehealth are among the most prominent applications of networking during this pandemic. Additionally, the COVID-19 pandemic highlights the importance of collaborative scientific efforts. In this chapter, we summarize the advantages of harnessing both social and scientific networking in minimizing the harms of this pandemic. We also discuss the extra collaborative measures we can take in our fight against COVID-19, particularly in the scientific field.
    Matched MeSH terms: Humans
  12. Arora R, Bansal V, Buckchash H, Kumar R, Sahayasheela VJ, Narayanan N, et al.
    Phys Eng Sci Med, 2021 Dec;44(4):1257-1271.
    PMID: 34609703 DOI: 10.1007/s13246-021-01060-9
    According to the World Health Organization (WHO), novel coronavirus (COVID-19) is an infectious disease and has a significant social and economic impact. The main challenge in fighting against this disease is its scale. Due to the outbreak, medical facilities are under pressure due to case numbers. A quick diagnosis system is required to address these challenges. To this end, a stochastic deep learning model is proposed. The main idea is to constrain the deep-representations over a Gaussian prior to reinforce the discriminability in feature space. The model can work on chest X-ray or CT-scan images. It provides a fast diagnosis of COVID-19 and can scale seamlessly. The work presents a comprehensive evaluation of previously proposed approaches for X-ray based disease diagnosis. The approach works by learning a latent space over X-ray image distribution from the ensemble of state-of-the-art convolutional-nets, and then linearly regressing the predictions from an ensemble of classifiers which take the latent vector as input. We experimented with publicly available datasets having three classes: COVID-19, normal and pneumonia yielding an overall accuracy and AUC of 0.91 and 0.97, respectively. Moreover, for robust evaluation, experiments were performed on a large chest X-ray dataset to classify among Atelectasis, Effusion, Infiltration, Nodule, and Pneumonia classes. The results demonstrate that the proposed model has better understanding of the X-ray images which make the network more generic to be later used with other domains of medical image analysis.
    Matched MeSH terms: Humans
  13. Oh CK, Aniwan S, Piyachaturawat P, Wong Z, Soe T, Luvsandagva B, et al.
    Gut Liver, 2021 11 15;15(6):878-886.
    PMID: 33790055 DOI: 10.5009/gnl20166
    Background/Aims: As the number of colonoscopies and polypectomies performed continues to increase in many Asian countries, there is a great demand for surveillance colonoscopy. The aim of this study was to investigate the adherence to postpolypectomy surveillance guidelines among physicians in Asia.

    Methods: A survey study was performed in seven Asian countries. An email invitation with a link to the survey was sent to participants who were asked to complete the questionnaire consisting of eight clinical scenarios.

    Results: Of the 137 doctors invited, 123 (89.8%) provided valid responses. Approximately 50% of the participants adhered to the guidelines regardless of the risk of adenoma, except in the case of tubulovillous adenoma ≥10 mm combined with high-grade dysplasia, in which 35% of the participants adhered to the guidelines. The participants were stratified according to the number of colonoscopies performed: ≥20 colonoscopies per month (high volume group) and <20 colonoscopies per month (low volume group). Higher adherence to the postpolypectomy surveillance guidelines was evident in the high volume group (60%) than in the low volume group (25%). The reasons for nonadherence included concern of missed polyps (59%), the low cost of colonoscopy (26%), concern of incomplete resection (25%), and concern of medical liability (15%).

    Conclusions: A discrepancy between clinical practice and surveillance guidelines among physicians in Asia was found. Physicians in the low volume group frequently did not adhere to the guidelines, suggesting a need for continuing education and appropriate control. Concerns regarding the quality of colonoscopy and complete polypectomy were the main reasons for nonadherence.

    Matched MeSH terms: Humans
  14. Chan KS, Chuang YC, Lin TY, Shaw SW
    J Formos Med Assoc, 2021 Jun;120(6):1394-1399.
    PMID: 33583701 DOI: 10.1016/j.jfma.2021.01.022
    Acardiac twin or twin reversed arterial perfusion (TRAP) sequence is a rare medical complication of Monozygotic twins. Taiwanese Obstetricians usually treat TRAP sequence conservatively. Occasionally, repeated amnio-reduction is performed to decompress the polyhydramnios caused by the TRAP sequence, even though there was no correction of the pathophysiologic mechanism. Radiofrequency ablation is a minimally invasive, percutaneous technique that can effectively obliterate blood supply to an acardiac twin to preserve and protect the pump twin. This recent technique has never been used before for the treatment of the TRAP sequence in Taiwan. This article reported the first-hand experience of acardiac twin management with RFA in Taipei Chang Gung Memorial Hospital.
    Matched MeSH terms: Humans
  15. Ahmad AM, Al-Marzouqi A, Dias JM, Saifan AR, Md Kassim N, Mohamad MN, et al.
    Nurs Forum, 2022 Jan;57(1):211-214.
    PMID: 34478171 DOI: 10.1111/nuf.12647
    Aligned with international standards, the UAE Government and many other developing countries in the region (GCC and MENA) have started to implement strict quality improvement initiatives to develop their healthcare systems. Most of these initiatives are geared toward meeting patient satisfaction and avoiding circumstances or events that would dissatisfy patients. It is also used to measure healthcare institution performance, assess efficiency and determine their funding and reimbursement. With this emphasis on quality, it is also important for healthcare organizations to fulfill their other functions. Among the most important is performing their teaching role to prepare future healthcare professionals, and attracting and retaining healthcare professionals. These roles are also a paramount for a quality, sustained healthcare system. However, clinical educators and managers reflect on how these roles seem to be frequently missed or at least compromised while applying the quality assurance measures in the region developing countries. This reflective paper discusses this concern and suggests possible strategies that may help overcome this challenge and thus contributing to the achievement of the quality goal of the service in a more comprehensive and sustainable manner. The similarities between the UAE healthcare system and neighboring Gulf Cooperation Council and the Middle East/North African countries mean these challenges and solutions may resonate with these countries and support the implementation of effective health services in these countries as well.
    Matched MeSH terms: Humans
  16. El Haj M, Janssen SMJ, Lenoble Q, Robin F, Gallouj K
    Neurol Sci, 2022 Jan;43(1):661-666.
    PMID: 33959825 DOI: 10.1007/s10072-021-05297-w
    BACKGROUND: Visual perspective during memory retrieval has mainly been evaluated with methodologies based on introspection and subjective reports. The current study investigates whether visual perspective can be evaluated with a physiological measurement: pupil dilation.

    METHODS: While their pupil diameter was measured with an eye-tracker, forty-five participants retrieved one memory from a field perspective (i.e., as viewed through our own eyes) and one memory from an observer perspective (i.e., as viewed from a spectator's standpoint). After retrieval, participants rated the emotional intensity of the memories.

    RESULTS: Analysis demonstrated larger pupils during the retrieval of memories from a field perspective and higher emotional intensity for memories retrieved from a field perspective.

    DISCUSSION: The larger pupils for memories recalled from a field perspective could, however, not be attributed to their higher emotional intensity. These findings suggest that pupil dilation could be used as a physiological assessment of visual perspective during memory retrieval.

    Matched MeSH terms: Humans
  17. Taha BA, Ali N, Sapiee NM, Fadhel MM, Mat Yeh RM, Bachok NN, et al.
    Biosensors (Basel), 2021 Jul 27;11(8).
    PMID: 34436055 DOI: 10.3390/bios11080253
    Understanding environmental information is necessary for functions correlated with human activities to improve healthcare quality and reduce ecological risk. Tapered optical fibers reduce some limitations of such devices and can be considerably more responsive to fluorescence and absorption properties changes. Data have been collected from reliable sources such as Science Direct, IEEE Xplore, Scopus, Web of Science, PubMed, and Google Scholar. In this narrative review, we have summarized and analyzed eight classes of tapered-fiber forms: fiber Bragg grating (FBG), long-period fiber grating (LPFG), Mach-Zehnder interferometer (MZI), photonic crystals fiber (PCF), surface plasmonic resonance (SPR), multi-taper devices, fiber loop ring-down technology, and optical tweezers. We evaluated many issues to make an informed judgement about the viability of employing the best of these methods in optical sensors. The analysis of performance for tapered optical fibers depends on four mean parameters: taper length, sensitivity, wavelength scale, and waist diameter. Finally, we assess the most potent strategy that has the potential for medical and environmental applications.
    Matched MeSH terms: Humans
  18. Fox L, Beyer K, Rammant E, Morcom E, Van Hemelrijck M, Sullivan R, et al.
    Front Public Health, 2021;9:741223.
    PMID: 34966713 DOI: 10.3389/fpubh.2021.741223
    Introduction: The COVID-19 pandemic has had an unprecedented impact on global health systems and economies. With ongoing and future challenges posed to the field due to the pandemic, re-examining research priorities has emerged as a concern. As part of a wider project aiming to examine research priorities, here we aimed to qualitatively examine the documented impacts of the COVID-19 pandemic on cancer researchers. Materials and Methods: We conducted a literature review with the aim of identifying non-peer-reviewed journalistic sources and institutional blog posts which qualitatively documented the effects of the COVID-19 pandemic on cancer researchers. We searched on 12th January 2021 using the LexisNexis database and Google, using terms and filters to identify English-language media reports and blogs, containing references to both COVID-19 and cancer research. The targeted search returned 751 results, of which 215 articles met the inclusion criteria. These 215 articles were subjected to a conventional qualitative content analysis, to document the impacts of the pandemic on the field of cancer research. Results: Our analysis yielded a high plurality of qualitatively documented impacts, from which seven categories of direct impacts emerged: (1) COVID measures halting cancer research activity entirely; (2) COVID measures limiting cancer research activity; (3) forced adaptation of research protocols; (4) impacts on cancer diagnosis, cases, and services; (5) availability of resources for cancer research; (6) disruption to the private sector; and (7) disruption to supply chains. Three categories of consequences from these impacts also emerged: (1) potential changes to future research practice; (2) delays to the progression of the field; and (3) potential new areas of research interest. Discussion: The COVID-19 pandemic had extensive practical and economic effects on the field of cancer research in 2020 that were highly plural in nature. Appraisal of cancer research strategies in a post-COVID world should acknowledge the potential for substantial limitations (such as on financial resources, limited access to patients for research, decreased patient access to cancer care, staffing issues, administrative delays, or supply chain issues), exacerbated cancer disparities, advances in digital health, and new areas of research related to the intersection of cancer and COVID-19.
    Matched MeSH terms: Humans
  19. Chen Y, Chen Y, Shi W, Hu S, Huang Q, Liu GS, et al.
    Biosens Bioelectron, 2022 Feb 15;198:113787.
    PMID: 34864241 DOI: 10.1016/j.bios.2021.113787
    High sensitivity and capturing ratio are strongly demanded for surface plasmon resonance (SPR) sensors when applied in detection of small molecules. Herein, an SPR sensor is combined with a novel smart material, namely, MoS2 nanoflowers (MNFs), to demonstrate programmable adsorption/desorption of small bipolar molecules, i.e., amino acids. The MNFs overcoated on the plasmonic gold layer increase the sensitivity by 25% compared to an unmodified SPR sensor, because of the electric field enhancement at the gold surface. Furthermore, as the MNFs have rich edge sites and negatively charged surfaces, the MNF-SPR sensors exhibit not only much higher bipolar-molecule adsorption capability, but also efficient desorption of these molecules. It is demonstrated that the MNF-SPR sensors enable controllable detection of amino acids by adjusting solution pH according to their isoelectric points. In addition, the MNFs decorated on the plasmonic interface can be as nanostructure frameworks and modified with antibody, which allows for specific detection of proteins. This novel SPR sensor provides a new simple strategy for pre-screening of amino acid disorders in blood plasma and a universal high-sensitive platform for immunoassay.
    Matched MeSH terms: Humans
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