Roisin Kelly

Dr. Roisin Kelly

orcid

Research Focus & Metrics

Academic Career Length

21Years (2006-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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12 October 2010 in Basic Research in Cardiology
Verified
Journal Article
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Roisin KellyRoisin Kelly
Roisin Kelly
KLKim T. Lamont
Kim T. Lamont
SSSarin Somers
Sarin Somers
DHDamian Hacking
Damian Hacking
LLLydia Lacerda
Lydia Lacerda
Sandrine LecourSandrine Lecour
Sandrine Lecour

3 January 2023 in British Journal of Pharmacology
Verified
Journal Article
Open access
PWPaul J. White
Paul J. White
CGClare Guilding
Clare Guilding
TATom Angelo
Tom Angelo
JKJohn P. Kelly
John P. Kelly
LGLaurel Gorman
Laurel Gorman
YLYannee Liu
Yannee Liu
Background and Purpose: In recent decades, a focus on the most critical and fundamental concepts has proven highly advantageous to students and educators in many science disciplines. Pharmacology, unlike microbiology, biochemistry, or physiology, lacks a consensus list of such core concepts.Experimental Approach: We sought to develop a research‐based, globally relevant list of core concepts that all students completing a foundational pharmacology course should master. This two‐part project consisted of exploratory and refinement phases. The exploratory phase involved empirical data mining of the introductory sections of five key textbooks, in parallel with an online survey of over 200 pharmacology educators from 17 countries across six continents. The refinement phase involved three Delphi rounds involving 24 experts from 15 countries across six continents.Key Results: The exploratory phase resulted in a consolidated list of 74 candidate core concepts. In the refinement phase, the expert group produced a consensus list of 25 core concepts of pharmacology.Conclusion and Implications: This list will allow pharmacology educators everywhere to focus their efforts on the conceptual knowledge perceived to matter most by experts within the discipline. Next steps for this project include defining and unpacking each core concept and developing resources to help pharmacology educators globally teach and assess these concepts within their educational contexts.

16 October 2012 in PLOS ONE
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Journal Article
Open access
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RMRudo F Mapanga
Rudo F Mapanga
URUthra Rajamani
Uthra Rajamani
NDNonkululeko Dlamini
Nonkululeko Dlamini
MZMakhosazane Zungu-Edmondson
Makhosazane Zungu-Edmondson
Roisin KellyRoisin Kelly
Roisin Kelly
MEM. Faadiel Essop
M. Faadiel Essop
Diabetes constitutes a major health challenge. Since cardiovascular complications are common in diabetic patients this will further increase the overall burden of disease. Furthermore, stress-induced hyperglycemia in non-diabetic patients with acute myocardial infarction is associated with higher in-hospital mortality. Previous studies implicate oxidative stress, excessive flux through the hexosamine biosynthetic pathway (HBP) and a dysfunctional ubiquitin-proteasome system (UPS) as potential mediators of this process. Since oleanolic acid (OA; a clove extract) possesses antioxidant properties, we hypothesized that it attenuates acute and chronic hyperglycemia-mediated pathophysiologic molecular events (oxidative stress, apoptosis, HBP, UPS) and thereby improves contractile function in response to ischemia-reperfusion. We employed several experimental systems: 1) H9c2 cardiac myoblasts were exposed to 33 mM glucose for 48 hr vs. controls (5 mM glucose); and subsequently treated with two OA doses (20 and 50 µM) for 6 and 24 hr, respectively; 2) Isolated rat hearts were perfused ex vivo with Krebs-Henseleit buffer containing 33 mM glucose vs. controls (11 mM glucose) for 60 min, followed by 20 min global ischemia and 60 min reperfusion ± OA treatment; 3) In vivo coronary ligations were performed on streptozotocin treated rats ± OA administration during reperfusion; and 4) Effects of long-term OA treatment (2 weeks) on heart function was assessed in streptozotocin-treated rats. Our data demonstrate that OA treatment blunted high glucose-induced oxidative stress and apoptosis in heart cells. OA therapy also resulted in cardioprotection, i.e. for ex vivo and in vivo rat hearts exposed to ischemia-reperfusion under hyperglycemic conditions. In parallel, we found decreased oxidative stress, apoptosis, HBP flux and proteasomal activity following ischemia-reperfusion. Long-term OA treatment also improved heart function in streptozotocin-diabetic rats. These findings are promising since it may eventually result in novel therapeutic interventions to treat acute hyperglycemia (in non-diabetic patients) and diabetic patients with associated cardiovascular complications.

20 September 2023 in British Journal of Pharmacology
Verified
Journal Article
Open access
CGClare Guilding
Clare Guilding
PWPaul J. White
Paul J. White
MCMargaret Cunningham
Margaret Cunningham
Roisin KellyRoisin Kelly
Roisin Kelly
JKJennifer Koenig
Jennifer Koenig
TATom Angelo
Tom Angelo
Background and Purpose: Development of core concepts in disciplines such as biochemistry, microbiology and physiology have transformed teaching. They provide the foundation for the development of teaching resources for global educators, as well as valid and reliable approaches to assessment. An international research consensus recently identified 25 core concepts of pharmacology. The current study aimed to define and unpack these concepts.Experimental Approach: A two‐phase, iterative approach, involving 60 international pharmacology education experts, was used. The first phase involved drafting definitions for core concepts and identifying key sub‐concepts via a series of online meetings and asynchronous work. These were refined in the second phase, through a 2‐day hybrid workshop followed by a further series of online meetings and asynchronous work.Key Results: The project produced consensus definitions for a final list of 24 core concepts and 103 sub‐concepts of pharmacology. The iterative, discursive methodology resulted in modification of concepts from the original study, including change of ‘drug–receptor interaction’ to ‘drug–target interaction’ and the change of the core concept ‘agonists and antagonists’ to sub‐concepts of drug–target interaction.Conclusions and Implications: Definitions and sub‐concepts of 24 core concepts provide an evidence‐based foundation for pharmacology curricula development and evaluation. The next steps for this project include the development of a concept inventory to assess acquisition of concepts, as well as the development of case studies and educational resources to support teaching by the global pharmacology community, and student learning of the most critical and fundamental concepts of the discipline.

9 May 2006 in The Journal of Physiology
Verified
Journal Article
Open access
PDF file
Roisin KellyRoisin Kelly
Roisin Kelly
TRT. Ruane‐O'HOra
T. Ruane‐O'HOra
MNM. I. M. Noble
M. I. M. Noble
ADA. J. Drake‐Holland
A. J. Drake‐Holland
HSH. M. Snow
H. M. Snow
Clinical hyperglycaemia affects vascular endothelial function, but the effect on shear stress‐induced arterial dilatation has not yet been established. We hypothesized that hyperglycaemia would inhibit this response via impaired glycocalyx mechanotransduction. Experiments were carried out in the anaesthetized pig in which pressure, blood flow and diameter of the left iliac artery were measured at two sites: proximal (d1) and distal (d2). Infusion of glucose, sufficient to raise blood glucose to 16–30 mm along the whole length of the artery, attenuated the shear stress‐dependent dilatation in both sections of the artery with preservation of the responses to acetylcholine. The distal site was then isolated using snares and the lumen exposed to blood containing 25–35 mm glucose for 20 min. In the control situation, after exposure of both sections to normoglycaemia (5.7 mm glucose), both sections of artery showed increases in diameter in response to shear stress and acetylcholine. Hyperglycaemia attenuated the shear stress‐dependent dilatation in the distal section only (P < 0.25), but not the response to acetylcholine. It is concluded from these results that the hyperglycaemia‐impaired dilatation is consistent with loss of mechanotransducing properties of the endothelial glycocalyx by hyperglycaemia. These findings offer a possible explanation for the increased incidence of vascular disease in diabetic patients.

25 October 2013 in Acta Physiologica
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Journal Article
Closed access
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RMR. F. Mapanga
R. F. Mapanga
DJDanzil Eugene Joseph
Danzil Eugene Joseph
BSB. Symington
B. Symington
KGK.‐L. Garson
K.‐L. Garson
CKC. Kimar
C. Kimar
MEM. Faadiel Essop
M. Faadiel Essop