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| 2. |
- Dunnett, Stephen B, et al.
(författare)
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Introduction (Part I)
- 2012
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Ingår i: Functional Neural Transplantation III : Primary and stem cell therapies for brain repair. Part 1 - Primary and stem cell therapies for brain repair. Part 1. - 0079-6123. - 9780444595751 ; 200, s. 3-5
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Bokkapitel (refereegranskat)
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| 3. |
- Dunnett, Stephen B, et al.
(författare)
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Introduction (Part II)
- 2012
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Ingår i: Functional Neural Transplantation III : Primary and Stem Cell Therapies for Brain Repair, Part II - Primary and Stem Cell Therapies for Brain Repair, Part II. - 0079-6123. - 9780444595447 ; 201, s. 3-5
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Bokkapitel (refereegranskat)
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| 4. |
- Lindgren, H. S., et al.
(författare)
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The effect of additional noradrenergic and serotonergic depletion on a lateralised choice reaction time task in rats with nigral 6-OHDA lesions
- 2014
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Ingår i: Experimental Neurology. - : Elsevier BV. - 0014-4886 .- 1090-2430. ; 253, s. 52-62
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Tidskriftsartikel (refereegranskat)abstract
- Parkinson's disease (PD) patients often suffer from visuospatial deficits, which have been considered a disruption of the representation of external space. The lateralised choice reaction time (CRT) task is an operant task for rodents in which similar deficits can be assessed. It has been demonstrated that specific parameters in this task is disrupted after unilateral injections of 6-hydroxydopamine (6-OHDA), which have been associated with the dopamine (DA) depletion that inevitably follows this type of lesion. However, studies have demonstrated that this type of lesion also affects the serotonergic (5HT) and noradrenergic (NA) systems. However, the impact of these systems on parameters in the CRT task had not yet been investigated.To this end, rats were pretrained on the CRT task before receiving selective lesions of the DAergic system, either alone or in combination with depletion of the NA or 5HT system. All rats with a 6-OHDA lesion displayed a gradual decline in the selection, initiation and execution of lateralised movements compared to sham-lesion controls on the side contralateral to the lesion. They also displayed a reduced number of useable trials as well as an increased number of procedural errors. Interestingly, the group with an additional noradrenergic lesion was significantly slower in reacting to lateralised stimuli throughout the testing period compared to the other two groups with a 6-OHDA lesion. There was however no difference between the three different lesion groups in the other parameters assessed in the task.These data confirm previous findings demonstrating that the majority of the parameters assessed in the lateralised CRT task are strongly dependent on DA. However, this study has also shown that the NAergic system may play an important role in contributing to the attentive performance influencing the capacity to react to the presented lateralised stimuli. © 2013 Elsevier Inc.
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| 5. |
- Thompson, Lachlan, et al.
(författare)
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Survival, differentiation, and connectivity of ventral mesencephalic dopamine neurons following transplantation
- 2012
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Ingår i: Functional Neural Transplantation III : Primary and Stem Cell Therapies for Brain Repair, Part I - Primary and Stem Cell Therapies for Brain Repair, Part I. - 0079-6123. - 9780444595751 ; 200, s. 61-95
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Bokkapitel (refereegranskat)abstract
- The reconstruction of midbrain dopamine (DA) circuitry through intracerebral transplantation of new DA neurons contained in embryonic ventral mesencephalon (VM) is a promising therapeutic approach for Parkinson's disease (PD). Although some of the early open-label trials have provided proof-of-principal that VM grafts can provide sustained improvement of motor function in some patients, subsequent trials showed that the functional response can be highly variable. This chapter reviews an extensive body of basic and clinical research on the survival, differentiation, and connectivity of DA neurons in VM grafts, and also looks at how these parameters are affected by certain host- and donor-specific variables. We also review how technical advances in the tools available to study the integration of grafted DA neurons, such as transgenic reporter mice, have made significant contributions to our understanding of the capacity of different DA neuronal subtypes for target-directed growth and innervation of appropriate host brain structures. Our established and on-going understanding of the capacity of grafted DA neurons to structurally and functionally integrate following transplantation forms an important basis for the refinement and optimization of VM grafting procedures, and also the development of new procedures based on the use of stem cells.
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| 6. |
- Zander, K.K., et al.
(författare)
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Indigenous cultural and natural resources management and mobility in Arnhem Land, northern Australia
- 2014
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Ingår i: Human Ecology. - : Springer. - 0300-7839 .- 1572-9915. ; 42:3, s. 443-453
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Tidskriftsartikel (refereegranskat)abstract
- Many programmes formally engage Australian Indigenous people in land and sea management to provide environmental services. There are also many Indigenous people who 'look after country' without rewards or payment because of cultural obligations. We investigated how Indigenous peoples' mobility in and around two communities (Maningrida and Ngukurr) is affected by their formal or informal engagement in cultural and natural resource management (CNRM). Understanding factors that influence peoples' mobility is important if essential services are to be provided to communities efficiently. We found that those providing formal CNRM were significantly less likely to stay away from settlements than those 'looking after their country' without payment or reward. Paying Indigenous people to engage with markets for CNRM through carbon farming or payments for environmental services (PES) schemes may alter traditional activities and reduce mobility, particularly movements away from communities that extend the time spent overnight on country. This could have both environmental and social consequences that could be managed through greater opportunities for people to engage in formal CNRM while living away from communities and greater recognition of the centrality of culture to all Indigenous CNRM, formal or otherwise.
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