17 results on '"Gharib AM"'
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2. Study of plant resources with ethnomedicinal relevance from district Bagh, Azad Jammu and Kashmir, Pakistan
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Maqsood Tasneem, Munawar Tayyaba, Bibi Yamin, El Askary Ahmad, Gharib Amal F., Elmissbah Tariq E., Elesawy Basem H., and Qayyum Abdul
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chittra ,diseases ,ethnomedicine ,kalri ,medicinal plants ,pandi ,topi ,Chemistry ,QD1-999 - Abstract
An ethnomedicinal expedition was conducted to collect and record indigenous knowledge about the use of medicinal plants by local inhabitants of four villages (Chittra, Topi, Pandi, and Kalri) of district Bagh, Azad Jammu and Kashmir. Ethnomedicinal data were obtained from 60 randomly selected local inhabitants of the study area through semi-structured questionnaires and interviews. These data were analyzed quantitatively through different ethnobotanical indices including family importance value, relative frequency of citation, use value (UV), fidelity level (FL), informant consensus factor (ICF), and Jaccard index (JI). our study reported 69 medicinal plants belonging to 39 families. Rosaceae (9 species) was a dominant family of the study area. Herb (54.83%) was dominant growth form of plants used for medicinal purpose. Leaves contributed maximum usage (44.29%) for curing diseases. Decoction (23 records) was most used mode of utilization. Relative frequency of citation and UV ranged from 0.03–0.85 and 0.05–1.17, respectively. There were 4 plant species with 100% FL. Highest ICF (0.88%) was found for gastrointestinal diseases. By comparing results with previous study, JI ranged from 0.54 to 24.43%. Our results found that there were 18 plant species not reported with ethnomedicinal aspect in previous studies from district Bagh region. The research of this study concludes that the area is rich with medicinal plants and the local inhabitant of this area still prefer medicinal plants over allopathic medicines for treating different ailments. Comparative analysis has shown some novel uses of plant species which may be due to cultural differences of the study area. However, awareness and pharmacological study are needed to conserve and unveil pharmaceutically important plants.
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- 2022
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3. Larvicidal and adulticidal activity of irradiated Thuja orientalis essential oil by gamma radiation for controlling Culexpipiens.
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Gharib AM, Hamouda SS, Hamza AF, and Zahran NF
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- Animals, Female, Mosquito Control methods, Plant Oils pharmacology, Culex drug effects, Culex radiation effects, Larva drug effects, Larva radiation effects, Oils, Volatile pharmacology, Gamma Rays, Insecticides pharmacology, Thuja chemistry
- Abstract
Culex pipiens mosquitoes are the primary vector of the West Nile virus worldwide and have a wide distribution. To avoid the development of resistance in insect pests to conventional synthetic pesticides, there have been many attempts to study botanical pesticides. The increasing resistance of insect pests to synthetic pesticides is a threat to the diversity of ecosystems, which makes the study of botanical pesticides all the more important. The study aimed to determine the efficacy of Thuja orientalis essential oil irradiated with 1, 3 and 5 KGy compared to unirradiated T. orientalis as larvicidal agents against the third instar larvae of C. pipiens using six different concentrations (15, 20, 25, 30, 35 and 40 ppm) and as an adulticidal agent against approximately three-day-old female adults 0.2, 0.4, 0.6, 1 and 2%. The results generally showed that the irradiated essential oil with 5 KGy had the highest efficacy by LC
50 (20.16 ppm) followed by essential oil irradiated with 3 and 1 KGy (LC50 , 23.16 and 26.00 ppm, respectively) compared to unirradiated ones (LC50 , 27.28 ppm) after 24 h from the exposure for the third instar larvae. The knockdown effect for adults increased significantly with higher concentrations of the oil, across different exposure times ranging from 5 to 60 min. The time to knock down 100% of mosquito population to Thuja orientalis essential oils at the highest concentration 2% were 20 min at 0, 1, and 3 KGy and 10 min at 5 KGy. Our results indicate that gamma irradiation of T. orientalis fruit improves the efficacy of their essential oil against Culex pipiens and the irradiated oil could be successfully used for management of these insects. The head capsule, antenna, and the last abdominal segments of the 3rd instar larvae exposed to the essential oil of unirradiated or irradiated Thuja orientalis unripe were examined by the scanning electron microscope (SEM)., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 Elsevier Ltd. All rights reserved.)- Published
- 2025
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4. Exploring global perspectives on the use of computer-based simulation in pharmacy education: a survey of students and educators.
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Gharib AM, Bindoff IK, Peterson GM, and Salahudeen MS
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Background: : Increasing student numbers and logistical challenges in pharmacy education limit patient counselling and clinical placement opportunities. Computer-based simulation (CBS) offers scalable, interactive learning but faces integration barriers., Objective: : To explore global perceptions of CBS implementation in pharmacy education among educators and students. Methods: An online cross-sectional survey was developed based on literature review and expert feedback. The survey was distributed globally through academic pharmacy organisations, social media, and the authors' networks. It included 20 questions targeting pharmacy educators and students., Results: : Responses from 152 educators across 38 countries and 392 students from 46 countries, spanning six WHO regions (AFRO, AMRO, EMRO, EURO, SEARO, and WPRO) were analysed using descriptive and inferential statistics. The majority of educators (90.1%, n = 137) and students (84.2%, n = 330) expressed comfort with using CBS and implementing it in their curriculum. Despite this, CBS was perceived as underutilised by 53.5% (n = 81) of educators and 63.7% (n = 250) of students. Students valued CBS for enhancing communication and problem-solving skills, while educators highlighted its relevance to community pharmacy practice. Both groups supported CBS use in assessments. All educators (100%) identified workload reduction as a key priority, hoped CBS could assist in this area. Educators also reported barriers such as financial constraints (56.6%, n = 86) and insufficient technical support (53.3%, n = 81). On the other hand, students were less optimistic about institutional support, with only a few (7.4%, n = 29) believed institutional leaders would actively support CBS adoption. Regional differences emerged, with SEARO (Southeast Asia) and AFRO (Africa) showing the lowest CBS usage rates. Educators in SEARO, AFRO, and EMRO (Eastern Mediterranean) raised concerns about technical support, while those in SEARO, AFRO, and WPRO (Western Pacific, including Australia, New Zealand, and Singapore) expressed financial concerns. Educators in AFRO and WPRO, however, reported being 100% comfortable with using CBS., Conclusion: : Both students and educators recognised the potential of CBS in pharmacy education, with strong support for its integration. Addressing barriers such as educator workload, financial constraints, and technical support is crucial for broader adoption. Improved resource allocation and targeted training for educators are essential to effectively incorporate CBS into the pharmacy curriculum., Competing Interests: The University of Tasmania owns the underlying Intellectual Property for Pharmacy Simulator and makes use of it in their Bachelor of Pharmacy program. This technology has been outlicensed for commercialisation and is being actively sold as Pharmacy Simulator by Imitated Environments Pty Ltd., Hobart, Australia. ABN 71 625 288 575. One of the authors, IB, is the director and major shareholder of Imitated Environments Pty Ltd. The remaining authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest. The author(s) declared that they were an editorial board member of Frontiers, at the time of submission. This had no impact on the peer review process and the final decision., (Copyright © 2024 Gharib, Bindoff, Peterson and Salahudeen.)
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- 2024
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5. Endothelial Dysfunction in Youth-Onset Type 2 Diabetes: A Clinical Translational Study.
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Abd-Elmoniem KZ, Edwan JH, Dietsche KB, Villalobos-Perez A, Shams N, Matta J, Baumgarten L, Qaddumi WN, Dixon SA, Chowdhury A, Stagliano M, Mabundo L, Wentzel A, Hadigan C, Gharib AM, and Chung ST
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- Adolescent, Adult, Female, Humans, Male, Young Adult, Age of Onset, Cells, Cultured, Coronary Vessels diagnostic imaging, Coronary Vessels physiopathology, Coronary Vessels pathology, Coronary Vessels metabolism, Endothelial Cells metabolism, Endothelial Cells pathology, Extracellular Vesicles metabolism, Magnetic Resonance Imaging, Nitric Oxide metabolism, Oxidative Stress, Translational Research, Biomedical, Diabetes Mellitus, Type 2 physiopathology, Diabetes Mellitus, Type 2 complications, Diabetes Mellitus, Type 2 metabolism, Endothelium, Vascular diagnostic imaging, Endothelium, Vascular metabolism, Endothelium, Vascular pathology, Endothelium, Vascular physiopathology
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Background: Youth-onset type 2 diabetes (Y-T2D) is associated with increased risk for coronary atherosclerotic disease, but the timing of the earliest pathological features and evidence of cardiac endothelial dysfunction have not been evaluated in this population. Endothelial function magnetic resonance imaging may detect early and direct endothelial dysfunction in the absence of classical risk factors (severe hyperglycemia, hypertension, and hyperlipidemia). Using endothelial function magnetic resonance imaging, we evaluated peripheral and coronary artery structure and endothelial function in young adults with Y-T2D diagnosed ≤5 years compared with age-matched healthy peers. We isolated and characterized plasma-derived small extracellular vesicles and evaluated their effects on inflammatory and signaling biomarkers in healthy human coronary artery endothelial cells to validate the imaging findings., Methods: Right coronary wall thickness, coronary artery flow-mediated dilation, and brachial artery flow-mediated dilation were measured at baseline and during isometric handgrip exercise using a 3.0T magnetic resonance imaging. Human coronary artery endothelial cells were treated with Y-T2D plasma-derived small extracellular vesicles. Protein expression was measured by Western blot analysis, oxidative stress was measured using the redox-sensitive probe dihydroethidium, and nitric oxide levels were measured by 4-amino-5-methylamino-2',7'-difluororescein diacetate., Results: Y-T2D (n=20) had higher hemoglobin A1c and high-sensitivity C-reactive protein, but similar total and LDL (low-density lipoprotein)-cholesterol compared with healthy peers (n=16). Y-T2D had greater coronary wall thickness (1.33±0.13 versus 1.22±0.13 mm; P =0.04) and impaired endothelial function: lower coronary artery flow-mediated dilation (-3.1±15.5 versus 15.9±17.3%; P <0.01) and brachial artery flow-mediated dilation (6.7±14.7 versus 26.4±15.2%; P =0.001). Y-T2D plasma-derived small extracellular vesicles reduced phosphorylated endothelial nitric oxide synthase expression and nitric oxide levels, increased reactive oxygen species production, and elevated ICAM (intercellular adhesion molecule)-mediated inflammatory pathways in human coronary artery endothelial cells., Conclusions: Coronary and brachial endothelial dysfunction was evident in Y-T2D who were within 5 years of diagnosis and did not have severe hyperglycemia or dyslipidemia. Plasma-derived small extracellular vesicles induced markers of endothelial dysfunction, which corroborated accelerated subclinical coronary atherosclerosis as an early feature in Y-T2D., Registration: URL: https://www.clinicaltrials.gov; Unique identifier: NCT02830308 and NCT01399385., Competing Interests: None.
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- 2024
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6. Exploring barriers to the effective use of computer-based simulation in pharmacy education: a mixed-methods case study.
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Gharib AM, Peterson GM, Bindoff IK, and Salahudeen MS
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Background: At the University of Tasmania (UTAS), pharmacy education traditionally relies on placements to provide students with hands-on experience. However, these placements have become increasingly limited due to logistical challenges and growing student numbers. Computer-based simulation (CBS) has the potential to offer a scalable, effective alternative to enhance learning and critical thinking. However, integrating CBS in pharmacy education faces several barriers that must be addressed for successful implementation., Objective: To gain insight into pharmacy educators' and students' views regarding the barriers, and potential solutions, to integrating CBS in pharmacy practice education., Methods: This mixed-methods case study involved semi-structured interviews with pharmacy educators and quantitative surveys with pharmacy students. The data underwent thematic coding for interview transcripts and statistical analysis for survey responses. The findings were integrated by examining convergence, complementarity, and discrepancy, revealing insights into how pharmacy students and educators perceive implementation barriers and improvement strategies for CBS., Results: Ten interviews were conducted, and 75 survey responses were collected, with a 62.5% response rate. Key barriers to CBS integration included educators' heavy workload, scepticism about CBS's educational value, and general integration challenges. Students, however, showed high acceptance of CBS, with 70.7% agreeing that CBS could assess their knowledge, 69.3% emphasising its role in developing problem-solving skills, and 80% viewing CBS as a complement to classroom study. Proposed solutions for enhancing CBS uptake included additional institutional support by appointing dedicated simulation technicians, leveraging champions to advocate for CBS, and aligning CBS with educational objectives., Conclusion: A significant gap between students' readiness and educators' hesitancy to use CBS in pharmacy education was identified. While students are eager to adopt new technologies, educators expressed reservations, primarily due to workload concerns and uncertainties about the efficacy of CBS. The feedback from educators suggests that institutions may see improved uptake by employing dedicated support personnel and initiating targeted training programs. Future research should focus on exploring barriers and facilitators, using larger and more diverse samples, and gaining deeper insights into decision-makers' perspectives to enhance the integration and efficacy of CBS in pharmacy education., Competing Interests: The University of Tasmania owns the underlying Intellectual Property for Pharmacy Simulator and makes use of it in their Bachelor of Pharmacy program. This technology has been out-licensed for commercialisation and is being actively sold as Pharmacy Simulator by Imitated Environments Pty Ltd., Hobart, Australia. ABN 71625288575. One of the authors, Ivan Bindoff is the director and major shareholder of Imitated Environments Pty Ltd. The remaining authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest. The author(s) declared that they were an editorial board members of Frontiers, (MS and GP) at the time of submission. This had no impact on the peer review process and the final decision., (Copyright © 2024 Gharib, Peterson, Bindoff and Salahudeen.)
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- 2024
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7. Evaluating circulating cell-free DNA and DNA integrity index as biomarkers in non-small cell lung cancer.
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Ezzeldin N, El-Lebedy D, Hassan M, Shalaby AO, Hussein SAM, Gharib AM, Hamdy G, Mohammed AM, Ramadan A, and Sobeih ME
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- Humans, Male, Female, Middle Aged, Aged, Prognosis, Liquid Biopsy methods, ROC Curve, Neoplasm Staging, Adult, Case-Control Studies, Carcinoma, Non-Small-Cell Lung blood, Carcinoma, Non-Small-Cell Lung diagnosis, Carcinoma, Non-Small-Cell Lung genetics, Carcinoma, Non-Small-Cell Lung pathology, Biomarkers, Tumor blood, Biomarkers, Tumor genetics, Lung Neoplasms blood, Lung Neoplasms diagnosis, Lung Neoplasms genetics, Lung Neoplasms pathology, Circulating Tumor DNA blood, Circulating Tumor DNA genetics, Cell-Free Nucleic Acids blood
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Background: Analysis of free DNA molecules shed from tumour cells in plasma of patients referred as circulating tumour DNA (ctDNA) with reference to physiological circulating cell-free DNA (cfDNA) is nowadays exploited as liquid biopsy and is considered a new emerging promising biomarker for diagnosis, selection of proper treatment, and prognosis of cancer. DNA integrity index (DII) is assessed by calculating the ratio between the concentration of long cfDNA strands released from tumour cells (ALU247) and the short strands released from normal cells (ALU115). The aim of the current study was to evaluate DII as a potential diagnostic and prognostic biomarker of NSCLC., Methods: Our study included 48 NSCLC patients diagnosed as primary NSCLC before starting treatment, 30 COPD patients diagnosed clinically, radiologically, and subjected to chest high-resolution computerized tomography, and 40 healthy controls. cfDNA concentration and DII were measured by quantitative real-time polymerase chain reaction (qPCR)., Results: ALU115, ALU247, and DII were significantly higher in NSCLC compared to COPD patients (p < 0.0001) and controls (p < 0.0001) and in COPD patients compared to control subjects (p < 0.0001). DII positively correlated with the stage of tumour (p = 0.01), tumour metastasis (p = 0.004), and with adenocarcinoma compared to other histopathological types (p = 0.02). To evaluate clinical utility of DII in NSCLC, ROC curve analysis demonstrated an AUC of 0.91 at a cut-off value of 0.44 with total accuracy = 85.6%, sensitivity = 90%, specificity = 83%, PPV = 78.1%, and NPV = 92.1%., Conclusion: cfDNA and DII represent a promising diagnostic and prognostic tool in NSCLC. This type of noninvasive liquid biopsy revealed its chance in the screening, early diagnosis, and monitoring of NSCLC., (© 2024. The Author(s).)
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- 2024
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8. Association of Coronary Wall Thickening and Diminished Diastolic Function in Asymptomatic, Low Cardiovascular Disease-Risk Persons Living with HIV.
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Abd-Elmoniem KZ, Ishaq H, Purdy J, Matta J, Hamimi A, Hannoush H, Hadigan C, and Gharib AM
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- Adult, Humans, Middle Aged, Diastole, Heart, Prospective Studies, Cardiovascular Diseases, HIV Infections complications
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Purpose To assess early subclinical coronary artery disease (CAD) burden and its relation to myocardial function in asymptomatic persons living with HIV (PLWH) who are at low risk for cardiovascular disease (CVD). Materials and Methods In this prospective, HIPAA-compliant study (ClinicalTrials.gov NCT01656564 and NCT01399385) conducted from April 2010 to May 2013, 74 adult PLWH without known CVD and 25 matched healthy controls underwent coronary MRI to measure coronary vessel wall thickness (VWT) and echocardiography to assess left ventricular function. Univariable and multivariable linear regression analyses were used to evaluate statistical associations. Results For PLWH, the mean age was 49 years ± 11 (SD), and the median Framingham risk score was 3.2 (IQR, 0.5-6.6); for matched healthy controls, the mean age was 46 years ± 8 and Framingham risk score was 2.3 (IQR, 0.6-6.1). PLWH demonstrated significantly greater coronary artery VWT than did controls (1.47 mm ± 0.22 vs 1.34 mm ± 0.18; P = .006) and a higher left ventricular mass index (LVMI) (77 ± 16 vs 70 ± 13; P = .04). Compared with controls, PLWH showed altered association between coronary artery VWT and both E/A (ratio of left ventricular-filling peak blood flow velocity in early diastole [E wave] to that in late diastole [A wave]) ( P = .03) and LVMI ( P = .04). In the PLWH subgroup analysis, coronary artery VWT increase was associated with lower E/A ( P < .001) and higher LVMI ( P = .03), indicating restricted diastolic function. In addition, didanosine exposure was associated with increased coronary artery VWT and decreased E/A ratio. Conclusion Asymptomatic low-CVD-risk PLWH demonstrated increased coronary artery VWT in association with impaired diastolic function, which may be amenable to follow-up studies of coronary pathogenesis to identify potential effects on the myocardium and risk modification strategies. Keywords: Coronary Vessel Wall Thickness, Diastolic Function, HIV, MRI, Echocardiography, Atherosclerosis Clinical trial registration nos. NCT01656564 and NCT01399385 Supplemental material is available for this article. © RSNA, 2024.
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- 2024
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9. Ascending Aorta 4D Time to Peak Distention Sexual Dimorphism and Association with Coronary Plaque Burden Severity in Women.
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Hamimi AH, Ghanem AM, Hannah-Shmouni F, Elgarf RM, Matta JR, Gharib AM, and Abd-Elmoniem KZ
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- Humans, Female, Middle Aged, Male, Sex Factors, Aorta diagnostic imaging, Aorta physiopathology, Aorta pathology, Coronary Angiography, Aged, Time Factors, Risk Assessment, Aortography, Adult, Risk Factors, Radiographic Image Interpretation, Computer-Assisted, Coronary Vessels diagnostic imaging, Coronary Vessels physiopathology, Health Status Disparities, Plaque, Atherosclerotic, Coronary Artery Disease diagnostic imaging, Coronary Artery Disease physiopathology, Severity of Illness Index, Predictive Value of Tests, Computed Tomography Angiography, Asymptomatic Diseases
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Coronary artery disease (CAD) risk and plaque scores are often subjective and biased, particularly in mid-age asymptomatic women, whose CAD risk assessment has been historically underestimated. In this study, a new automatic ascending aorta time-to-peak-distention (TPD) analysis was developed for fast screening and as an independent surrogate for subclinical atherosclerosis in asymptomatic women. CCTA was obtained in 50 asymptomatic adults. Plaque burden segment involvement score (SIS) and automatic TPD were obtained from all subjects. Logistic regression analyses were performed to investigate the association between CAD risk scores and TPD with severe coronary plaque burden (SIS>5). TPD, individually, was found to be a significant predictor of SIS>5. Additionally, sex was a significant effect modifier of TPD, with a stronger statistically significant association with women. Four-dimensional aortic time-to-peak distention could supplement conventional CCTA analysis and offer a quick objective screening tool for plaque burden severity and CAD risk stratification, especially in women., (© 2023. This is a U.S. Government work and not under copyright protection in the US; foreign copyright protection may apply.)
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- 2024
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10. The role of HIV as a risk modifier for coronary endothelial function in young adults.
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Abd-Elmoniem KZ, Yeramosu T, Purdy JB, Ouwerkerk R, Matta JR, Ishaq H, Hawkins K, Curl KA, Dee N, Gharib AM, and Hadigan C
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- Humans, Child, Preschool, Young Adult, Endothelium, Vascular pathology, Endothelium, Vascular physiology, Hand Strength, Coronary Vessels diagnostic imaging, Coronary Vessels pathology, Coronary Vessels physiology, Brachial Artery diagnostic imaging, Brachial Artery physiology, Risk Factors, Vasodilation physiology, HIV Infections, Cardiovascular Diseases epidemiology
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Background: People living with HIV have an increased risk of cardiovascular disease (CVD). Although coronary endothelial function (CEF) is an early direct indicator of CVD, only a few studies have been able to interrogate CEF directly. Most studies have examined vascular endothelial function through indirect assessment of brachial flow-mediated dilatation (FMD). However, peripheral arteries are significantly larger and manifest atherogenesis differently from the coronary arteries, and so produce conflicting results. Additionally, none of these studies focused on young adults who acquired HIV perinatally or in early childhood., Objective: The present study investigates CEF in a unique population of young adults with lifelong HIV using direct magnetic resonance imaging (MRI) of coronary FMD (corFMD) with an in-house developed MRI-integrated isometric handgrip exercise system with continuous feedback and monitoring mechanisms (fmIHE)., Methods: Young adults who acquired HIV perinatally or in early childhood (n = 23) and group-matched healthy participants (n = 12) completed corFMD-MRI with fmIHE. CorFMD was measured as the coronary cross-sectional area response to the fmIHE., Results: In univariable and multivariable regression analysis, HIV status was a significant risk modifier. CD8+ T-cell count and smoking pack-years and their interaction with HIV status were independently associated with impaired coronary artery response to fmIHE. In people living with HIV, corFMD was significantly inversely correlated with CD8+ T-cells and smoking pack-years. In a multivariable regression analysis adjusted for age and body mass index, CD8+ T-cells and smoking and their interaction with HIV status remained significant independent predictors of coronary endothelial dysfunction., Discussion: In this unique population of young adults, HIV status was a significant risk modifier, and immune activation and smoking were associated with decreased CEF, directly measured from the coronary vascular response to fmIHE., Conclusions: Management of CVD risk factors such as smoking and developing strategies that target immune activation in people living with HIV are warranted., (Published 2023. This article is a U.S. Government work and is in the public domain in the USA.)
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- 2023
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11. Reduced coronary artery luminal area in pheochromocytoma and paraganglioma patients.
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Nazari MA, Abd-Elmoniem KZ, Jha A, Matta J, Talvacchio S, Charles K, Feeley J, Patel M, Feelders R, Pacak K, and Gharib AM
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- Humans, Coronary Vessels, Epinephrine, Pheochromocytoma, Paraganglioma, Adrenal Gland Neoplasms
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- 2023
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12. Single Breath-Hold 3-Dimensional Magnetic Resonance Elastography Depicts Liver Fibrosis and Inflammation in Obese Patients.
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Darwish OI, Gharib AM, Jeljeli S, Metwalli NS, Feeley J, Rotman Y, Brown RJ, Ouwerkerk R, Kleiner DE, Stäb D, Speier P, Sinkus R, and Neji R
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- Humans, Female, Male, Magnetic Resonance Imaging methods, Reproducibility of Results, Liver Cirrhosis diagnostic imaging, Liver Cirrhosis pathology, Liver diagnostic imaging, Liver pathology, Inflammation diagnostic imaging, Inflammation pathology, Obesity complications, Obesity pathology, Elasticity Imaging Techniques methods
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Objectives: Three-dimensional (3D) magnetic resonance elastography (MRE) measures liver fibrosis and inflammation but requires several breath-holds that hamper clinical acceptance. The aim of this study was to evaluate the technical and clinical feasibility of a single breath-hold 3D MRE sequence as a means of measuring liver fibrosis and inflammation in obese patients., Methods: From November 2020 to December 2021, subjects were prospectively enrolled and divided into 2 groups. Group 1 included healthy volunteers (n = 10) who served as controls to compare the single breath-hold 3D MRE sequence with a multiple-breath-hold 3D MRE sequence. Group 2 included liver patients (n = 10) who served as participants to evaluate the clinical feasibility of the single breath-hold 3D MRE sequence in measuring liver fibrosis and inflammation. Controls and participants were scanned at 60 Hz mechanical excitation with the single breath-hold 3D MRE sequence to retrieve the magnitude of the complex-valued shear modulus (|G*| [kPa]), the shear wave speed (Cs [m/s]), and the loss modulus (G" [kPa]). The controls were also scanned with a multiple-breath-hold 3D MRE sequence for comparison, and the participants had histopathology (Ishak scores) for correlation with Cs and G"., Results: For the 10 controls, 5 were female, and the mean age and body mass index were 33.1 ± 9.5 years and 23.0 ± 2.1 kg/m 2 , respectively. For the 10 participants, 8 were female, and the mean age and body mass index were 45.1 ± 16.5 years and 33.1 ± 4.0 kg/m 2 (obese range), respectively. All participants were suspected of having nonalcoholic fatty liver disease. Bland-Altman analysis of the comparison in controls shows there are nonsignificant differences in |G*|, Cs, and G" below 6.5%, suggesting good consensus between the 2 sequences. For the participants, Cs and G" correlated significantly with Ishak fibrosis and inflammation grades, respectively ( ρ = 0.95, P < 0.001, and ρ = 0.84, P = 0.002)., Conclusion: The single breath-hold 3D MRE sequence may be effective in measuring liver fibrosis and inflammation in obese patients., Competing Interests: Conflicts of interest and sources of funding: Omar Darwish is a PhD candidate, and their university tuitions fees are covered by Siemens Healthineers. Dr Radhouene Neji is an employee of Siemens Healthineers United Kingdom, Dr Daniel Stäb is an employee of Siemens Healthcare Australia, and Dr Peter Speier is an employee of Siemens Healthcare Germany. For the remaining authors, none were declared. Sources of funding: CRUK City of London Centre Award (C7893/A26233), CRUK (EDDCPGM/100001), Siemens Healthineers, ITMO Aviesan 2020 (DESP/PB n°241), National Institutes of Health intramural fund, and by US Agency for International Development (USAID) and National Academy of Sciences through Subaward 2000012771 (any opinions, findings, conclusions, or recommendations expressed are those of the authors alone, and do not necessarily reflect the views of USAID or National Academy of Sciences)., (Copyright © 2023 Written work prepared by employees of the Federal Government as part of their official duties is, under the U.S. Copyright Act, a “work of the United States Government” for which copyright protection under Title 17 of the United States Code is not available. As such, copyright does not extend to the contributions of employees of the Federal Government.)
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- 2023
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13. Potential Barriers to the Implementation of Computer-Based Simulation in Pharmacy Education: A Systematic Review.
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Gharib AM, Peterson GM, Bindoff IK, and Salahudeen MS
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Computer-based simulation (CBS) is an interactive pedagogical training method that has seen increased interest, especially in recent years. There is some evidence that CBS in pharmacy education is not as widely adopted compared to other healthcare disciplines. Pharmacy education literature to date has not specifically discussed the potential barriers which may cause this uptake challenge. In this systematic narrative review, we attempted to explore and discuss potential barriers that may impact the integration of CBS in pharmacy practice education and provide our suggestions to overcome them. We searched five major databases and used the AACODS checklist for grey literature assessment. We identified 42 studies and four grey literature reports, published between 1 January 2000 and 31 August 2022, which met the inclusion criteria. Then, the specific approach of Braun and Clarke for thematic analysis was followed. The majority of the included articles were from Europe, North America, and Australasia. Although none of the included articles had a specific focus on barriers to implementation, thematic analysis was used to extract and discuss several potential barriers, such as resistance to change, cost, time, usability of software, meeting accreditation standards, motivating and engaging students, faculty experience, and curriculum constraints. Ad- dressing academic, process, and cultural barriers can be considered the first step in providing guidance for future implementation research for CBS in pharmacy education. The analysis suggests that to effectively overcome any possible barriers to implementing CBS, different stakeholders must engage in careful planning, collaboration, and investment in resources and training. The review indicates that additional research is required to offer evidence-based approach and strategies to prevent overwhelming or disengaging users from either learning or teaching process. It also guides further research into exploring potential barriers in different institutional cultures and regions.
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- 2023
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14. Computer-Based Simulators in Pharmacy Practice Education: A Systematic Narrative Review.
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Gharib AM, Bindoff IK, Peterson GM, and Salahudeen MS
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Computer-based simulations may represent an innovative, flexible, and cost-efficient training approach that has been underutilised in pharmacy practice education. This may need to change, with increasing pressure on clinical placement availability, COVID-19 restrictions, and economic pressures to improve teaching efficiency. This systematic narrative review summarises various computer-based simulations described in the pharmacy practice education literature, identifies the currently available products, and highlights key characteristics. Five major databases were searched (Medline, CINAHL, ERIC, Education Source and Embase). Authors also manually reviewed the publication section of major pharmacy simulator websites and performed a citation analysis. We identified 49 studies describing 29 unique simulators, which met the inclusion criteria. Only eight of these simulators were found to be currently available. The characteristics of these eight simulators were examined through the lens of eight main criteria (feedback type, grading, user play mode, cost, operational requirement, community/hospital setting, scenario sharing option, and interaction elements). Although a number of systems have been developed and trialled, relatively few are available on the market, and each comes with benefits and drawbacks. Educators are encouraged to consider their own institutional, professional and curriculum needs, and determine which product best aligns with their teaching goals.
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- 2023
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15. Volanesorsen, an antisense oligonucleotide to apolipoprotein C-III, increases lipoprotein lipase activity and lowers triglycerides in partial lipodystrophy.
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Lightbourne M, Startzell M, Bruce KD, Brite B, Muniyappa R, Skarulis M, Shamburek R, Gharib AM, Ouwerkerk R, Walter M, Eckel RH, and Brown RJ
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- Adult, Humans, Apolipoprotein C-III, Triglycerides, Oligonucleotides, Antisense therapeutic use, Lipoprotein Lipase genetics, Glucose, Insulin Resistance, Hypertriglyceridemia drug therapy, Lipodystrophy drug therapy
- Abstract
Background: Partial lipodystrophy (PL) syndromes involve deficiency of adipose tissue, causing severe insulin resistance and hypertriglyceridemia. Apolipoprotein C-III (apoC-III) is elevated in PL and is thought to contribute to hypertriglyceridemia by inhibiting lipoprotein lipase (LPL)., Objective: We hypothesized that volanesorsen, an antisense oligonucleotide to apoC-III, would decrease apoC-III, increase LPL activity, and lower triglycerides in PL., Methods: Five adults with PL enrolled in a 16-week placebo-controlled, randomized, double blind study of volanesorsen, 300 mg weekly, followed by 1-year open label extension., Results: Within-subject effects of volanesorsen before and after 16 weeks of active drug are reported due to small sample size. From week 0 to 16, apoC-III decreased from median (25
th , 75th %ile) 380 (246, 600) to 75 (26, 232) ng/mL, and triglycerides decreased from 503 (330, 1040) to 116 (86, 355) mg/dL while activation of LPL by subjects' serum increased from 21 (20, 25) to 36 (29, 42) nEq/mL*min. Although, A1c did not change, peripheral and hepatic insulin sensitivity (glucose disposal and suppression of glucose production during hyperinsulinemic clamp) increased and palmitate turnover decreased. After 32-52 weeks of volanesorsen, liver fat decreased. Common adverse events included injection site reactions and decreased platelets., Conclusions: In PL, volanesorsen decreased apoC-III and triglycerides, in part through an LPL dependent mechanism, and may improve insulin resistance and hepatic steatosis., Competing Interests: Declaration of Competing Interest In-kind research support for this study (including study drug, analysis of pharmacokinetics and lipids, database management, patient remuneration and visiting nurse support) were provided by Ionis Pharmaceuticals and Akcea Therapeutics. All authors have declared that no conflict of interest exists., (Copyright © 2022. Published by Elsevier Inc.)- Published
- 2022
- Full Text
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16. Virtual reality versus optokinetic stimulation in visual vertigo rehabilitation.
- Author
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Mandour AE, El-Gharib AM, Emara AA, and Elmahallawy TH
- Subjects
- Dizziness, Humans, Quality of Life, Exercise Therapy, Vertigo rehabilitation, Virtual Reality Exposure Therapy
- Abstract
Background: Visual vertigo (VV) is a condition at which there is worsening or triggering of vestibular symptoms in certain visual environments with large size (full field) repetitive or moving visual patterns as shopping malls., Purpose: This work was designed to study effect of virtual reality and optokinetic stimulation on rehabilitation of VV., Method: A total of 60 subjects divided into 2 groups that were simply randomized by the concealed envelope method: Group I consisted of 30 VV patients underwent vestibular rehabilitation using virtual reality. Group II consisted of 30 VV patients underwent vestibular rehabilitation using optokinetic stimulation., Results: Significant improvement in performance in the two groups after rehabilitation with no statistically significant difference when comparing both groups., Conclusions: A combined intense rehabilitation program including OPK stimulation or VR rehabilitation combined with home-based exercises appeared to be equally effective for management of patients with VV and improving their quality of life., (© 2021. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.)
- Published
- 2022
- Full Text
- View/download PDF
17. Native-resolution myocardial principal Eulerian strain mapping using convolutional neural networks and Tagged Magnetic Resonance Imaging.
- Author
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Yassine IA, Ghanem AM, Metwalli NS, Hamimi A, Ouwerkerk R, Matta JR, Solomon MA, Elinoff JM, Gharib AM, and Abd-Elmoniem KZ
- Subjects
- Heart diagnostic imaging, Humans, Image Processing, Computer-Assisted methods, Myocardium pathology, Phantoms, Imaging, Magnetic Resonance Imaging methods, Neural Networks, Computer
- Abstract
Background: Assessment of regional myocardial function at native pixel-level resolution can play a crucial role in recognizing the early signs of the decline in regional myocardial function. Extensive data processing in existing techniques limits the effective resolution and accuracy of the generated strain maps. The purpose of this study is to compute myocardial principal strain maps ε
p1 and εp2 from tagged MRI (tMRI) at the native image resolution using deep-learning local patch convolutional neural network (CNN) models (DeepStrain)., Methods: For network training, validation, and testing, realistic tMRI datasets were generated and consisted of 53,606 cine images simulating the heart, the liver, blood pool, and backgrounds, including ranges of shapes, positions, motion patterns, noise, and strain. In addition, 102 in-vivo image datasets from three healthy subjects, and three Pulmonary Arterial Hypertension patients, were acquired and used to assess the network's in-vivo performance. Four convolutional neural networks were trained for mapping input tagging patterns to corresponding ground-truth principal strains using different cost functions. Strain maps using harmonic phase analysis (HARP) were obtained with various spectral filtering settings for comparison. CNN and HARP strain maps were compared at the pixel level versus the ground-truth and versus the least-loss in-vivo maps using Pearson correlation coefficients (R) and the median error and Inter-Quartile Range (IQR) histograms., Results: CNN-based local patch DeepStrain maps at a phantom resolution of 1.1mm × 1.1 mm and in-vivo resolution of 2.1mm × 1.6 mm were artifact-free with multiple fold improvement with εp1 ground-truth median error of 0.009(0.007) vs. 0.32(0.385) using HARP and εp2 ground-truth error of 0.016(0.021) vs. 0.181(0.08) using HARP. CNN-based strain maps showed substantially higher agreement with the ground-truth maps with correlation coefficients R > 0.91 for εp1 and εp2 compared to R < 0.21 and R < 0.82 for HARP-generated maps, respectively., Conclusion: CNN-generated Eulerian strain mapping permits artifact-free visualization of myocardial function at the native image resolution., (Copyright © 2021. Published by Elsevier Ltd.)- Published
- 2022
- Full Text
- View/download PDF
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