Pathogenic Role Of MicroParticles In Cerebral Malaria
Funder
National Health and Medical Research Council
Funding Amount
$250,000.00
Summary
Cerebral malaria (CM) is a life-threatening complication of infection caused by parasites. The mechanisms leading to coma, convulsions and death in CM remain unknown. CM in children is associated with high levels of endothelial microparticles (MP). However, not only the levels but also the phenotypes of MP can be altered in CM as well as their related functional properties. The project aims to develop a better definition of the MP released during CM and to study MP phenotypes in relation to clin ....Cerebral malaria (CM) is a life-threatening complication of infection caused by parasites. The mechanisms leading to coma, convulsions and death in CM remain unknown. CM in children is associated with high levels of endothelial microparticles (MP). However, not only the levels but also the phenotypes of MP can be altered in CM as well as their related functional properties. The project aims to develop a better definition of the MP released during CM and to study MP phenotypes in relation to clinical syndrome, disease severity and disease outcome.Read moreRead less
Prevalence, Nature And Recommendations For Clinical Management And Self-management Of Depression For People With HIV
Funder
National Health and Medical Research Council
Funding Amount
$470,290.00
Summary
By comparing the nature and prevalence of depression in those with and without HIV, and documenting the ways in which general practitioners manage depression in their patients, the project will provide a comprehensive and layered understanding of depression among men, particularly those living with HIV in urban and regional Australia. Project findings will develop the skills and research capacity of general practitioners in the assessment and management of depression.
Approaches to combat AIDS and its causative agent, the human immunodeficiency virus HIV-1, have thus far proved ineffective. The proposed research program intends to investigate the nuclear import of two HIV-1 proteins which have central roles in HIV infection. We will apply our expertise in the area of the regulation of nuclear import of viral proteins, and build on our observations with respect to these proteins to attempt to establish the mechanistic basis of their nuclear import, and how thi ....Approaches to combat AIDS and its causative agent, the human immunodeficiency virus HIV-1, have thus far proved ineffective. The proposed research program intends to investigate the nuclear import of two HIV-1 proteins which have central roles in HIV infection. We will apply our expertise in the area of the regulation of nuclear import of viral proteins, and build on our observations with respect to these proteins to attempt to establish the mechanistic basis of their nuclear import, and how this differs from the conventional nuclear import pathways used by normal cellular proteins. We already have evidence that nuclear import of HIV-Tat is regulated in novel fashion by cellular factors, and intend, through determining its mechanistic basis, to be able to form the basis of a strategy to block this import pathway specifically, and thereby inhibit HIV replication. This may form the basis in the future of a new pharmaceutical approach to combat HIV-AIDS.Read moreRead less
Targeting CD4-positive Cells For Anti-HIV Gene Therapy
Funder
National Health and Medical Research Council
Funding Amount
$356,646.00
Summary
Treatment of HIV early following infection is thought to be important for maximising the quality of life of patients. Conventional therapy has had some success in early intervention but resistance invariably develops. This application proposes to develop a gene therapy approach to elimiate HIV infected cells by introducing a suicide gene into those cells that harbor the virus. The advantage of this approach is the limited toxicity that is associated with gene therapies as well as the ability to ....Treatment of HIV early following infection is thought to be important for maximising the quality of life of patients. Conventional therapy has had some success in early intervention but resistance invariably develops. This application proposes to develop a gene therapy approach to elimiate HIV infected cells by introducing a suicide gene into those cells that harbor the virus. The advantage of this approach is the limited toxicity that is associated with gene therapies as well as the ability to target specific cell-types. It is proposed to genetically modify a strain of adenovirus to introduce a gene that will kill cells that it infects that also contain HIV. This is a novel approach and potentially may be an important treatment in the future. Anti-HIV gene therapy may also be useful in addition to the more conventional treatments.Read moreRead less
Effect Of A Personalised Oral Health Education Programme On Clinical And Molecular Risk Factors For At-risk Populations
Funder
National Health and Medical Research Council
Funding Amount
$149,900.00
Summary
Recently, a number of studies have shown that poor oral health may impact on general health. However, for many Australians on low incomes, the only dental care they receive is of an emergency nature due to the long waiting lists in the public sector. The current study proposes to look at whether an oral health education program delivered by allied oral health professionals will result in a significant improvement in oral health which in turn will lead to better oral and general health outcomes i ....Recently, a number of studies have shown that poor oral health may impact on general health. However, for many Australians on low incomes, the only dental care they receive is of an emergency nature due to the long waiting lists in the public sector. The current study proposes to look at whether an oral health education program delivered by allied oral health professionals will result in a significant improvement in oral health which in turn will lead to better oral and general health outcomes in a low socio-economic communityRead moreRead less
HIV infection of CD4+ lymphocytes leads to a high rate of reproduction of new virus. However, in the brain, HIV infection of the astrocytes does not yield high levels of new virus. HIV is genetically active in these astrocytes, producing high levels of the messenger molecules, the so-called mRNA, that code for the proteins required for a new virus particle. We have determined that these HIV mRNAs are specifically prevented from translating into protein. The mechanisms controlling protein transla ....HIV infection of CD4+ lymphocytes leads to a high rate of reproduction of new virus. However, in the brain, HIV infection of the astrocytes does not yield high levels of new virus. HIV is genetically active in these astrocytes, producing high levels of the messenger molecules, the so-called mRNA, that code for the proteins required for a new virus particle. We have determined that these HIV mRNAs are specifically prevented from translating into protein. The mechanisms controlling protein translation from RNA are relatively poorly understood compared with the other control points of cellular gene expression, such as the synthesis of mRNA. This project examines how astrocytes rapidly detect the presence of HIV mRNA and alter their translation machinery to halt the expression of HIV protein. This host defence mechanism involves two key components; the cellular component that identifies and responds to the viral mRNA, and the structural features of the HIV mRNA that enable the cell to detect its viral origin. We will study how translation of HIV proteins requires both HIV and cellular factors. We will determine the impact of both viral RNA elements and viral RNA binding proteins on the translation of viral and cellular proteins. The contribution of the type-1 interferons that are produced in response to viral infection will be studied for their role in augmenting the inhibition of HIV protein translation. Since HIV infected astrocytes significantly contribute to the onset of AIDS dementia, we will sees a strategy to lock HIV into a dormant state in the brain and thereby prevent the neurodegenerative disease associated with HIV. We will use the anti-viral mechanism blocking HIV protein translation in astrocytes to protect other cell populations, such as the CD4+ lymphocytes, from HIV infection. These studies will also give insights into the general mechanisms for translational control of gene expression in human cells.Read moreRead less
Prospective Study Of Medical Emergency Team Calls To Define Issues Of End Of Life Decision Making
Funder
National Health and Medical Research Council
Funding Amount
$48,700.00
Summary
A Medical Emergency Team (MET) is a specialised team of doctors and nurses from the Intensive Care Unit who urgently come to patients on the general wards whose medical condition is very unstable. They have to make crucial decisions about their treatment in a very short time. The previous research in this area has been focussed on improving medical outcomes, however it is also apparent that the patients having MET calls are often seriously ill with life limiting illnesses. This study aims to exp ....A Medical Emergency Team (MET) is a specialised team of doctors and nurses from the Intensive Care Unit who urgently come to patients on the general wards whose medical condition is very unstable. They have to make crucial decisions about their treatment in a very short time. The previous research in this area has been focussed on improving medical outcomes, however it is also apparent that the patients having MET calls are often seriously ill with life limiting illnesses. This study aims to explore the broader aspects of care at this time, which are of paramount importance to patients and their families, such as various aspects of communication, particularly focusing on changing goals of care; and also the symptoms that may be causing significant distress for the patient. This project will provide information that will assist development of interventions that will both aim to improve quality of life and also communication in the setting of medical emergencies in patients with life limiting illness.Read moreRead less
Thai Health-risk Transition: A National Cohort Study
Funder
National Health and Medical Research Council
Funding Amount
$1,231,214.00
Summary
Thailand's disease patterns are changing. Some changes are good but others, like emerging diabetes, heart disease and injuries, are of concern. Development-related 'health transition' can be optimised if there is information on new causes of disease - immediate risk factors, and 'upstream' economic, cultural and environmental influences. The team will study this health-risk transition in the whole Thai population - looking back 50 years, then forwards in 100,000 Sukothai Thammathirat Open Univer ....Thailand's disease patterns are changing. Some changes are good but others, like emerging diabetes, heart disease and injuries, are of concern. Development-related 'health transition' can be optimised if there is information on new causes of disease - immediate risk factors, and 'upstream' economic, cultural and environmental influences. The team will study this health-risk transition in the whole Thai population - looking back 50 years, then forwards in 100,000 Sukothai Thammathirat Open University students living all over Thailand and followed for four years. The team will map changing risks and upstream influences, produce information for Thai preventive programs, boost regional research capacity, create a regional partnership, and support PhD and postdoctoral training.Read moreRead less