21 research outputs found

    Vitamin D-Mediated Anti-cancer Activity Involves Iron Homeostatic Balance Disruption and Oxidative Stress Induction in Breast Cancer

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    Background: Vitamin D deficiency associates with high risk of breast cancer (BRCA) and increased cellular iron. Vitamin D exerts some of its anti-cancer effects by regulating the expression of key iron regulatory genes (IRGs). The association between vitamin D and cellular iron content in BRCA remains ambiguous. Herein, we addressed whether vitamin D signaling exerts a role in cellular iron homeostasis thereby affecting survival of breast cancer cells. Methods: Expression profile of IRGs in vitamin D-treated breast cancer cells was analyzed using publicly available transcriptomic datasets. After treatment of BRCA cell lines MCF-7 and MDA-MB-231 with the active form of vitamin D, labile iron content, IRGs protein levels, oxidative stress, and cell survival were evaluated. Results: Bioinformatics analysis revealed several IRGs as well as cellular stress relates genes were differentially expressed in BRCA cells. Vitamin D treatment resulted in cellular iron depletion and differentially affected the expression of key IRGs protein levels. Vitamin D treatment exerted oxidative stress induction and alteration in the cellular redox balance by increasing the synthesis of key stress-related markers. Collectively, these effects resulted in a significant decrease in BRCA cell survival. Conclusion: These findings suggest that vitamin D disrupts cellular iron homeostasis leading to oxidative stress induction and cell death.</p

    The cutting-edge training modalities and educational platforms for accredited surgical training: A systematic review

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    Background: Historically, operating room (OR) has always been considered as a stand-alone trusted platform for surgical education and training.However, concerns about financial constraints, quality control, and patient safety have urged the surgical educators to develop more cost-effective, surgical educational platforms that can be employed outside the OR. Furthermore, trained surgeons need to regularly update their surgical skills to keep abreast with the emerging surgical technologies. This research aimed to explore the value of currently available modern surgical tools that can be used outside the OR and also elaborates the existing laparoscopic surgical training programs in world-class centers across the globe with a view to formulate a blended and unified structured surgical training program. Materials and Methods: Several data sources were searched using MeSH terms “Laparoscopic surgery” and “Surgical training” and “Surgical curriculum” and “fundamentals of endoscopic surgery” and “fundamentals of laparoscopic surgery” and “Telementoring” and “Box trainer.” The eligibility criteria used in data extraction searched for original and review articles and by excluding the editorial articles, short communications, conference proceedings, personal view, and commentaries. Data synthesis and data analysis were done by reviewing the initially retrieved 211 articles. Irrelevant and duplicate and redundant articles were excluded from the study. Results: Finally, 12 articles were selected for this systematic review. Data results showed that a myriad of cutting-edge technical innovations have provided modern surgical training tools such as the simulation-based mechanical and virtual reality simulators, animal and cadaveric labs, telementoring, telerobotic-assisted surgery, and video games. Surgical simulators allow the trainees to acquire surgical skills in a tension-free environment without supervision or time constraints. Conclusion: The existing world-renowned surgical training centers employ various clusters of training tools that essentially endeavor to embed the acquisition of knowledge and technical skills. However, a unified training curriculum that may be accepted worldwide is currently not available

    The impact and effectiveness of faculty development program in fostering the faculty’s knowledge, skills, and professional competence: A systematic review and meta-analysis

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    Background: Faculty vitality is the main ingredient to enhance professional education and competence. Enriching the faculty vitality in key domains of teaching, assessing, research, professionalism, and administration is perceived to improve educational environment significantly and enhances the academic performance of learners. Faculty development program (FDP) has been considered as a stand-alone educational pedagogy in fostering knowledge and professional skills of faculty. However, few studies have provided objective reports about the impact of such programs in a healthcare system. Methods: This research was conducted by selecting data sources of PubMed-Medline, Wiley online library, Cochrane library, Taylor & Francis Online, CINAHL, Springer link, Proquest, ISI Web of knowledge, ScienceDirect, EJS, EBSCO, Blackwell, Emerald and ABI Inform. This search followed a step-wise approach defined by the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA). A total of 37 studies that explored the impact of FDPs on medical and allied health faculty’s professional development were selected. Results: This meta-analysis reported a mean effect size of 0.73 that reflects a significant and positive impact of FDPs in enhancing faculty’s knowledge and professional competence (z-statistics of 4.46 significant at p-value < 0.05) using the random effects model and forest plot. Conclusion: This article reiterates the incorporation of FDPs in all healthcare institutions for improving the academic performance of faculty with resultant enrichment of learners’ knowledge and skills. Keywords: Faculty, Medical and allied health faculty, Faculty development program, Healthcare institutions, Personal developmen

    Mapping the factors that influence the career specialty preferences by the undergraduate medical students

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    It is often perceived that undergraduate medical students do not select their career specialty until they are graduated. This study aimed to probe the preferences of undergraduate medical students about their career specialty and the factors influencing their choices. A self-administered questionnaire was distributed to 3rd through 5th year undergraduate medical students to record their choices of specialties and to identify the factors that influence their career selection. Out of 220 respondents, 29 (13.2%) students selected General Surgery, 24 (10.9%) Pediatrics, and 18 (8.2%) Internal Medicine as their career specialties; whereas 24 (10.9%) students were not able to select a major specialty. The least popular specialties were Gynecology and Obstetrics, Oncology, Histopathology, Orthopedics, Genetics, Psychology, each selected by one student. One hundred and seventeen (53.1%) thought their selected specialty ‘matched their capabilities’ and 82 (37.2%) perceived their selection as “innovative field in medicine”. Career advice by friends and families and the desire to serve academic institutions could not influence career selection. Career preferences by medical students result from the interplay of a range of factors. General Surgery, Pediatrics and Internal Medicine were the most preferred specialties. The professional grooming programs to target specialties matching the trainees’ capabilities and the specialties with state-of-the-art innovative technologies attract medical undergraduate students. The attained knowledge is vitally important for the policy makers in modifying the existing framework that can cater the popular and favored specialties. Keywords: Specialty selection, Career, Medical students, Health-care policie

    A systematic review of educational interventions and their impact on empathy and compassion of undergraduate medical students

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    Introduction: A compassionate and patient-centered care leads to improved clinical outcomes. Promoting empathy and compassion of medical students is a forerunner of their well-being, emotional stability, and a patient-centered care. However, there is slender evidence about best educational interventions that can inculcate empathy and compassion skills. Our objective was to conduct a systematic review of research evaluating the associations between spectrum, effectiveness, frequency of teaching modalities and their outcomes on compassion and empathy to highlight best practices.  Methods: We searched the Web of Science, PubMed, Scopus, and EBSCO Host on 22nd July 2020. We adapted our search strategy from a previously published systematic review on education for compassion and empathy. Selected studies were required to have used unique educational interventions for promoting empathy and compassion of medical students. The research questions were based on Participants (medical students), Intervention (empathy and/or compassion related teaching), Comparison, and Outcome.  Results: We analyzed 24 articles from the initial yield of 2,861. Twenty-two were quantitative studies with a mean of 12.8 on MERSQI. Twelve were randomized controlled trials while 5 measured outcomes with single group pre- and post-tests. There was no association found between duration, frequency and complexity of an educational intervention and its effectiveness. Twenty used multimodality curricula, and of those 18 reported statistically significant positive improvement in empathy, while 3 of 4 single modality were effective. Only three studies looked for long-term effects of educational interventions. Fourteen studies evaluated Kirkpatrick's level one (self-reported knowledge), 2 level three (behavior), and 6 level four (patient outcomes). We identified six major educational constructs of teaching empathy and compassion; communication, mindfulness, early clinical exposure, technology-enhanced learning, comics and arts and culture.  Discussion: Our review couldn't identify a standard teaching construct in place and highlighted that different teaching tools carry similar impact in promoting compassion and empathy and a sustainable program rather than a single training activity is essential. </p

    Higher prevalence in young population and rightward shift of colorectal Carcinoma

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    Corresponding Author: Dr. Salman Y. Guraya, Senior Registrar Surgery, Department of Surgery (37), King Khalid University Hospital, PO Box 7805, Riyadh 11472, Kingdom of Saudi Arabia. Tel. +966 (1) 4671585. Fax. +966 (1) 4679493. E-mail: [email protected]: To report the pattern, subsite distribution and histological features of colorectal cancer in a University Hospital in Riyadh. Methods: The study was carried out in King Khalid University Hospital, Riyadh, Kingdom of Saudi Arabia, where the medical records of patients diagnosed to have colorectal carcinoma were retrieved spanning a 5-year period from 1999 through 2004. The demographic data, primary location and extent of the lesion, and various pathologic characteristics were analyzed. Results: Fifty-seven patients with colorectal carcinoma were included; 45 men and 12 women, age range 21-76 years (mean 44 years). Thirty-six (63%) subjects were found to be younger than 40 years, whereas 33 (57.8%) cases had right sided and 24 (42.2%) left sided colon cancers. Eighteen (31.5%) patients presented with early (I, II) and 39 (68.5%) with late (III, IV) stage. Dukes B and C were reported in 53 (92.9%) patients and out of those, 30 cases presented with right sided colonic carcinoma. Conclusion: There is a profound rightward shift of colorectal carcinoma compounded with a rising incidence of advanced lesions in younger age group

    Publish or Perish mantra in the medical field: A systematic review of the reasons, consequences and remedies.

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    OBJECTIVES: Generally, academic promotions, job retention, job mobility, and professional development of a medical faculty members are judged primarily by the growth in publication outputs. Universities and research institutions are more likely to recruit and promote those academics carrying voluminous résumés with larger number of published articles. This review elaborates the causes and consequences of the pressure to publish and the ways and means to cope with this paradigm. METHODS: In 2015, database of Abstracts of Reviews of Effects, LISTA (EBSCO), Medline and Oxford University Library were searched for the English language full-text articles published during 2000-2015, by using MeSH terms "pressure to publish", "urge to publish", "research ethics", "plagiarism", "article retraction", "medical field". This search was further refined by selecting the articles in terms of relevancy and contents. RESULTS: This research showed that some universities offer generous grants to researchers with a high h-index and with more publications in elite journals, which promise an enhanced prospect of citations and elevation in the scientific rankings of the funding institutions. This generates an involuntary obsession to publish with the primary intention to obtain promotions, high scientific rankings, and improved job security. This compelling pressure to publish results in widespread publication of non-significant research with a high index of plagiarism that eventually leads to an increased frequency of retractions. CONCLUSION: Research centers and academic institutions have an obligation to train their academics in sound scientific writing and to apprise them of the publication ethics and the grave consequences of plagiarism and research misconduct
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