| Research Interests
My main research has been investigating the role of mechanical and
chemokine factors in osteoarthritis and how they interact in the regulation
of homeostasis in articular cartilage and that these can be modulated
by nutritional factors, specifically fatty acids.
My recent work involves developing a tool to aid diagnosis of neurodevelopmental
disorders in children, the main ones we are researching are autism
spectrum disorders (ASD), developmental co-ordination disorder (DCD)
and attention deficeit hyperactivity disorder (ADHD). The research
involves running a battery of tests that observe gross and fine motor
skills, movement co-ordination, imitation and joint attention. To
see how well children can imitate motion we record the position of
the child’s limbs and observe how long it takes them to notice
differences in what they are imitating and how quickly they can react
to these changes.
- To determine the response of elderly human articular cartilage
explants to static, cyclic or absence of mechanical load in a controlled
environment.
- To determine the response of elderly human articular cartilage
explants to a combination of mechanical stimuli and an essential
growth factor (IGF-1) in a controlled environment.
- To investigate the response of elderly human articular cartilage
explants, in medium containing elevated lipid levels, to static,
cyclic or absence mechanical load in a controlled environment.
- To investigate and compare transcription profiles of elderly
human articular cartilage explants to static, cyclic or absence
of mechanical load using microarray technology.
- To validate gene expression from microarray studies by qualitative
real-time polymerase chain reaction (RT-PCR).
- To determine the effect of arachidonic acid on the regulation
of protein and glycosoaminoglycan (GAG) molecules in cartilage by
using metabolic radiolabelling.
- To detect changes in adipocytic phenotype of chondrocytes in
cartilage sections, previously stimulated with fatty acids, using
histochemical and immunohistochemical methods.
- To determine the fat content and fatty acid profiles of bone
from OA and OP femoral heads.
Recent Publications
Mechanical and metabolic factors in osteoarthritis.
Plumb, M.S. PhD Thesis. University of Aberdeen, 2005.
Plumb, M.S. & Aspden, R.M. Lipids & OA in human joints. Proceedings
of Hill’s European Symposium on Osteoarthritis and Joint Health
(p 26-31), Invited Speaker, Genoa, Italy, 26th April 2005.
Plumb, M.S., Treon, K. & Aspden, R.M. The effect of mechanical
stimulation & IGF-1 on elderly, human articular cartilage matrix
biosynthesis in vitro, 2005 (manuscript under review).
Plumb, M.S.& Aspden, R.M. The response of elderly human articular
cartilage to mechanical stimulus in vitro. Osteoarthritis and Cartilage,
2005, 13, 1084-1091.
Plumb, M.S.& Aspden, R.M. High fat content of bone in OA. Lipids
in Health & Disease, 2004, 3: 12.
Plumb, M.S.& Aspden, R.M. Fat content and fatty acid profile of
OA cancellous bone.vitro. Osteoarthritis and Cartilage, 2003,11 Supplement
A, S62-63.
Plumb, M.S.& Aspden, R.M. The response of elderly human articular
cartilage to mechanical stimulus in vitro. Osteoarthritis and Cartilage,
2003,11 Supplement A, S94.
Plumb, M.S. & Aspden, R.M. The response of elderly human articular
cartilage to mechanical stimuli in vitro Oral presentation.at BASEM
and BASES Medicine and Science in Sport and Exercise, Glasgow, 22nd
June 2002. Awarded prize for best oral presentation in Sport Science.
Plumb, M.S., Treon, K.T. & Aspden, R.M. The response of elderly
human articular cartilage to mechanical stimuli in vitro and insulin-like
growth factor (IGF-1) in vitro. Journal of Sports Sciences, 2003,
21,330.
Plumb, M.S., Treon, K.T. & Aspden, R.M. The effect of IGF-1 and
mechanical load on elderly human articular cartilage (abstract). Oral
presentation and Poster. Proceedings of XVIIIth Federation of European
Connective Tissue Societies Meeting, Brighton, England, 2002.
Plumb, M.S. & Aspden, R.M. The response of elderly human articular
cartilage to mechanical stimuli in vitro (abstract). Poster presentation.
Proceedings of XVIIIth Federation of European Connective Tissue Societies
Meeting, Brighton, England, 2002.
Grants
Plumb, M.S. & Aspden, R.M. Tenovous-Scotland. Investigating the
response of elderly human articular cartilage to mechanical loading
using gene expression analysis. April, 2003 – March, 2004. £9,940.
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