MBRU Knowledge Repository
Knowledge Repository at Mohammed Bin Rashid University of Medicine and Health Sciences
Welcome to digital archive and research repository of Mohammed Bin Rashid University of Medicine and Health Sciences (MBRU). MBRU Knowledge Repository is a digital service that collects, preserves, and distributes digital material. MBRU's scholarly communications including theses, faculty publications, student projects, and departmental records and publications are the key digital records available in this repository. Repositories are important tools for preserving an organization's legacy; they facilitate digital preservation and scholarly communication.
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- Library Digital Archives
- Research and Scholarly work of College of Medicine
- Research and Scholarly work of College of Nursing and Midwifery
- Dubai Health Researchers Profiles
- Research and Scholarly work of Graduate Medical Education
- Research and Scholarly work of Hamdan Bin Mohammed College of Dental Medicine
- Research and Scholarly work of IoL
- Research publications of other departments
- Theses and dissertations submitted by MBRU graduate and post-graduate students.
Recent Submissions
Financing health care in the United Arab Emirates
(2013) Sharif, Amer
Abstract:
Newcomers to the United Arab Emirates (UAE) health care system often enquire about the way in which UAE health services are financed particularly when funding issues affect eligibility for treatment. The UAE ranks alongside many western counties on measures of life expectancy and child mortality but because of the unique population structure spends less of its national income on health. In the past as a wealthy country the UAE had no difficulty ensuring universal access to a comprehensive range of services, but the health needs of the UAE population are becoming more complex and like many countries the UAE health system is facing the twin challenges of quality and cost. To meet these challenges new models of health care financing are being introduced. In this brief article we will describe the evolution of UAE health financing, its current state and likely future developments.
Airflowing as an adjunctive treatment for periodontitis: A randomized controlled trial
(2024) Alsuwaidi, Salem; Shah, Maanas; Hakam, Abeer; Atieh, Momen A
Abstract
Background:
The aim of this randomized controlled trial was to assess clinical and patient-reported outcomes of subgingival instrumentation (SI) with adjunctive use of erythritol airflowing (EAF) compared to SI alone in the treatment of periodontitis.
Methods:
Twenty-six participants with Stage III/IV periodontitis requiring non surgical periodontal treatment were randomly allocated into two treatment groups: SI with EAF or SI alone. Clinical parameters of percentage of probing pocket depths (PPDs) of ≥5 mm, full mouth bleeding and plaque scores (FMBS and FMPS), and PPD values were recorded at baseline, and at 3- and 6-months posttreatment. A visual analogue scale was used to evaluate postoperative participants’ perception of pain, swelling, bleeding, bruising, and root sensitivity. The impact of periodontal treatment on quality of life was assessed using the General Oral Health Assessment Index (GOHAI) at six months.
Results:
A total of 26 participants with Stage III/IV periodontitis completed the 6-month follow-up. SI with or without EAF resulted in a statistically significant reductions in the FMBS, FMPS, PPDs, and percentage of PPDs of ≥5mmatthe 3- and 6-month follow-up visits. There was no statistically significant difference between the two treatment groups for any time interval. Participants receiving SI/EAF exhibited a higher reduction in FMBS compared to those in SI alone group at 3 (SI/EAF: 19.4 ± 11.9, SI alone: 30.1 ± 20.5; P = 0.12) and 6 months (SI/EAF: 14.3 ± 9.6, SI alone: 24.5 ± 18.2; P = 0.09). A lower percentage of sites with deep PPDs (≥5 mm) was also noted amongst participants in the SI/EAF group compared to SI alone at 3 months (SI/EAF:14.3±14.1, SI alone: 19.2 ±20.3; P = 0.48) and 6 months (SI/EAF: 8.3 ± 10.0, SI alone: 15.4 ± 17.4; P = 0.22). Patient-reported outcomes showed no significant differences between the two treatment groups, except in the psychosocial domain of the GOHAI at 6 months favoring the SI/EAF group (P = 0.03).
Conclusions:
Within the limitations of the study, the adjunctive use of EAF in addition to SI in the treatment of Stage III/IV periodontitis did not result in a significant improvement in clinical parameters. Limited improvement in the QoL with EAF could be achieved.
Gut matters in microgravity: potential link of gut microbiota and its metabolites to cardiovascular and musculoskeletal well-being
(2024-08) Soares, Nelson C
Abstract
The gut microbiota and its secreted metabolites play a significant role in cardiovascular and musculoskeletal health and diseases. The dysregulation of the intestinal microbiota poses a significant threat to cardiovascular and skeletal muscle well-being. Nonetheless, the precise molecular mechanisms underlying these changes remain unclear. Furthermore, microgravity presents several challenges to cardiovascular and musculoskeletal health compromising muscle strength, endothelial dysfunction, and metabolic changes. The purpose of this review is to critically examine the role of gut microbiota metabolites on cardiovascular and skeletal muscle functions and dysfunctions. It also explores the molecular mechanisms that drive microgravity-induced deconditioning in both cardiovascular and skeletal muscle. Key findings in this review highlight that several alterations in gut microbiota and secreted metabolites in microgravity mirror characteristics seen in cardiovascular and skeletal muscle diseases. Those alterations include increased levels of Firmicutes/Bacteroidetes (F/B) ratio, elevated lipopolysaccharide levels (LPS), increased in para-cresol (p-cresol) and secondary metabolites, along with reduction in bile acids and Akkermansia muciniphila bacteria. Highlighting the potential, modulating gut microbiota in microgravity conditions could play a significant role in mitigating cardiovascular and skeletal muscle diseases not only during space flight but also in prolonged bed rest scenarios here on Earth.
Conserved role of FOXC1 in TNBC is parallel to FOXA1 in ER+ breast cancer
(2024-07) Ramachandran, Revathy; Ibragimova, Shakhzada; AlHouqani, Tamader; Gomez, Roshna Lawrence; Hachim, Mahmood Y; Ali, Fahad R
Abstract
Triple-negative breast cancer (TNBC) is characterized by lack of the estrogen (ER) receptor, progesterone receptor (PR), and human epidermal growth factor receptor-2 (HER2), and standard receptor-targeted therapies are ineffective. FOXC1, a transcription factor aberrantly overexpressed in many cancers, drives growth, metastasis, and stem-cell-like properties in TNBC. However, the molecular function of FOXC1 is unknown, partly due to heterogeneity of TNBC. Here, we show that although FOXC1 regulates many cancer hallmarks in TNBC, its function is varied in different cell lines, highlighted by the differential response to CDK4/6 inhibitors upon FOXC1 loss. Despite this functional heterogeneity, we show that FOXC1 regulates key oncogenes and tumor suppressors and identify a set of core FOXC1 peaks conserved across TNBC cell lines. We identify the ER-associated and drug-targetable nuclear receptor NR2F2 as a cofactor of FOXC1. Finally, we show that core FOXC1 targets in TNBC are regulated in parallel by the pioneer factor FOXA1 and the nuclear receptor NR2F2 in ER + breast cancer.
Characteristics of non-fasting patients with diabetes type 2 in the DAR global surveys of 2020 and 2022
(2024) Hassanein, Mohamed; Hafidh, Khadija
Abstract
Introduction:
The decision to fast or not is quite complex. Personal, medical and religious matters may influence it for individuals with diabetes. However, a diagnosis of diabetes does not constitute an automatic exemption from Ramadan fasting. We aimed to evaluate the characteristics of the non-fasting cohort and explore the potential reasons during Ramadan through the global Ramadan surveys of 2020 and 2022.
Method:
The Diabetes and Ramadan (DaR) Global Study is an observational retrospective survey conducted between 2020 and 2022, which included adult patients (18 and older) who fasted and those who opted not to fast. The survey captured demographic data and patient characteristics (co-morbidities, duration and type of diabetes, diabetes-related complications and medications, development of acute complications during Ramadan, hospitalisations and ER visits) for both groups.
Results:
Of 12,059 patients, 1822 (14.5 %) did not fast during Ramadan; that population leaned towards females (54.6 %). They had an average age of 60.58 years (SD=12.12) with a statistically significant difference from the fasting population, averaging 54.29§11.45 (p = 0.000). Also of note was the more significant average duration of diabetes in the non-fasting cohort (12.54 years vs 9.44). There are notable regional differences in rates of fasting that ranged between 6.3 % and up to 51.2 % of patients opting not fast in certain regions (Chart 1). The risk factors that showed apparent differences of high statistical significance (p ≤ 0.001) included: long duration of diabetes of over ten years, age above 60+ years, HbA1c value over 9 %, use of insulin therapy, and being affected by one or more vascular complications (these include CKD, CVD, and diabetic foot problems).
Conclusions:
Many factors and comorbidities might influence patients’ decisions when planning Ramadan fasting. The non-fasting population’s demographic and clinical profiles reveal distinctive features, emphasising a need for tailored risk assessments. Furthermore, regional disparities in the decision to fast underscore the multifaceted nature of this decision-making process. The new IDF-DAR risk assessment tool can help to stratify patients’ risk during Ramadan fasting and bridge the gap among different populations and cultures.