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Articles 1 - 5 of 5
Full-Text Articles in Medical Sciences
Natural Killer Cells In Patients With Severe Chronic Fatigue Syndrome, Ekua Brenu, Sharni Hardcastle, Gunn Atkinson, Mieke Van Driel, Sanne Kreijkamp-Kaspers, Kevin Ashton, Don Staines, Sonja Marshall-Gradisnik
Natural Killer Cells In Patients With Severe Chronic Fatigue Syndrome, Ekua Brenu, Sharni Hardcastle, Gunn Atkinson, Mieke Van Driel, Sanne Kreijkamp-Kaspers, Kevin Ashton, Don Staines, Sonja Marshall-Gradisnik
Kevin Ashton
Maintenance of health and physiological homeostasis is a synergistic process involving tight regulation of proteins, transcription factors and other molecular processes. The immune system consists of innate and adaptive immune cells that are required to sustain immunity. The presence of pathogens and tumour cells activates innate immune cells, in particular Natural Killer (NK) cells. Stochastic expression of NK receptors activates either inhibitory or activating signals and results in cytokine production and activation of pathways that result in apoptosis of target cells. Thus, NK cells are a necessary component of the immunological process and aberrations in their functional processes, including equivocal …
Effect Of Testosterone On Inflammatory Markers In The Development Of Early Atherogenesis In The Testicular-Feminized Mouse Model, Daniel Kelly, Donna Sellers, M. Woodroofe, T. Jones, Kevin Channer
Effect Of Testosterone On Inflammatory Markers In The Development Of Early Atherogenesis In The Testicular-Feminized Mouse Model, Daniel Kelly, Donna Sellers, M. Woodroofe, T. Jones, Kevin Channer
Donna Sellers
Background: Low levels of serum testosterone in men are associated with cardiovascular disease. Clinical studies show that testosterone replacement therapy (TRT) can improve symptoms of cardiovascular disease and reduce the inflammatory burden evident in atherosclerosis.
Aim: We used an in vivo animal model to determine whether testosterone influences mediators of vascular inflammation as part of its beneficial effects on atherogenesis.
Methods: Testicular-feminized (Tfm) mice, which express low endogenous testosterone and a non-functional androgen receptor (AR), were used to assess the effect of androgen status on atheroma formation, serum lipids, and inflammatory mediators. Tfm mice were fed a high-cholesterol diet, received …
Myelopoiesis Related To Perinatal Spleen, Rebecca Hinton, Sawang Petvises, Helen O'Neill
Myelopoiesis Related To Perinatal Spleen, Rebecca Hinton, Sawang Petvises, Helen O'Neill
Helen O'Neill
Adult murine spleen is known to have a major role in the development of dendritic cell (DC) subsets, including conventional DC and plasmacytoid DC. In this lab, long-term cultures (LTCs) established from murine spleen support continuous production of novel dendritic-like cells, termed LTC-DC. An in vivo equivalent subset also exists in spleen, namely L-DC. As co-cultures using LTC-derived splenic stroma support the outgrowth of L-DC from spleen and bone marrow sources, it is likely that spleen represents an important niche for DC development. To investigate the appearance of L-DC during ontogeny, spleen was isolated from embryonic and neonatal mice of …
Diabetes Induced Changes In Rat Mesenchymal Stem Cells, Alexandra Stolzing, Donna Sellers, Owen Llewelyn, Andy Scutt
Diabetes Induced Changes In Rat Mesenchymal Stem Cells, Alexandra Stolzing, Donna Sellers, Owen Llewelyn, Andy Scutt
Donna Sellers
Diabetes mellitus, the single most important cause of vascular disease in the industrialized world, is also associated with bone loss and impaired fracture healing. Mesenchymal stem cells (MSCs) have the potential to differentiate into osteoblasts, chondrocytes and adipocytes and other mesenchymal cells and play a central role in bone formation and repair. Because of this, we have investigated the possibility that diabetes has direct effects on MSCs in vivo and that this might represent a cellular basis for diabetes-induced osteoporosis. We isolated MSCs from rats with streptozotocin-induced diabetes and analysed them ex vivo for their ability to proliferate and differentiate …
Quantitative (Real-Time) Rt-Pcr In Cardiovascular Research, Kevin Ashton, John Headrick
Quantitative (Real-Time) Rt-Pcr In Cardiovascular Research, Kevin Ashton, John Headrick
Kevin Ashton
Quantitative (real-time) PCR (qPCR) represents a highly sensitive, sequence-specific, and reproducible technique for the gel-free detection and quantitation of nucleic acids. Owing to its large dynamic range and throughput, this approach has become the chosen method for rapid quantification of mRNA levels in biological samples. The sensitivity of this method permits the reliable detection of low concentrations of initial template, while delivering a linear range of up to 10 orders of magnitude in copy number. This chapter details the basic methodology behind key components of a qPCR experiment, including sample preparation, fluorescent chemistries, primer/probe design, and data analysis applicable to …