Detection Of Metastases In Sentinel Nodes From Patients With Breast Cancer Using Proton Magnetic Resonance Spectroscopy
Funder
National Health and Medical Research Council
Funding Amount
$186,372.00
Summary
The objective is to develop magnetic resonance spectroscopy (MRS) for the rapid and accurate intra-operative detection of cancer cells in sentinel lymph nodes from breast cancer patients. Accurate intra-operative diagnosis of cancer in lymph nodes will enable informed decisions to be made regarding surgery and therapy and reduce the morbidity associated with complete clearance of axillary nodes. Using current histopathological techniques (frozen section) this is not possible. Proton MRS can dete ....The objective is to develop magnetic resonance spectroscopy (MRS) for the rapid and accurate intra-operative detection of cancer cells in sentinel lymph nodes from breast cancer patients. Accurate intra-operative diagnosis of cancer in lymph nodes will enable informed decisions to be made regarding surgery and therapy and reduce the morbidity associated with complete clearance of axillary nodes. Using current histopathological techniques (frozen section) this is not possible. Proton MRS can detect chemicals in malignant cells in lymph nodes with a greater sensitivity than histology and can detect micrometastases in 20 minutes. The MR diagnostic information can be obtained from fine needle biopsies (FNB) making the technique eminently suitable for rapid intra-operative diagnosis. The FNB technique has been shown to be a rapid and accurate method for the assessment of breast lesions, distinguishing benign lesions and invasive cancer with a sensitiviy and specificity of 95% and 96%, respectively. Here we propose to evaluate the use of MRS for the rapid and accurate assessment of sentinel nodes from breast cancer patients. Two blinded studies will be conducted comparing the MRS chemical fingerprints with serial section histopathological data. To evaluate the clinical significance of the MRS diagnosis, all patients will be entered into a prospective study correlating the MRS data with recurrence of disease within 3 and 5 year periods.Read moreRead less
Negative Symptom Formation In Schizophrenia: An Electrophysiological, Neurophysiological And Computational Modelling Investigation
Funder
National Health and Medical Research Council
Funding Amount
$374,508.00
Summary
The Negative and cognitive symptoms of schizophrenia have been recognised as being just as disabling as the more widely recognised positive symptoms such as hallucinations and delusions. Recently it has been proposed that negative symptoms in schizophrenia might be caused by alterations in learning from rewards and punishments. This project will investigate brain activity in people with schizophrenia during reward and punishment based learning tasks while applying computational modelling.
Mechanism Of Breast Cancer Metastasis: Tumour Cell Remodelling Of The Extracellular Matrix
Funder
National Health and Medical Research Council
Funding Amount
$377,331.00
Summary
The main complication in breast cancers leading to death is metastatic relapse. This research aims to understand the role for a protease that promotes spread of breast cancer to the lymph nodes and lungs. The outcomes will identify a novel process that leads to lymph node metastasis and offer a new target for therapies that prevent relapse and tests to identify breast cancer patients at risk of relapse.
CD4+ T Cell-independent Immunity Against Salmonellae
Funder
National Health and Medical Research Council
Funding Amount
$550,226.00
Summary
Salmonella typhimurium is an important pathogen in both developed and developing countries where it causes significant HIV-linked morbidity. There is a pressing need to understand how immunity might be established against this organism that will function when the patient is immunocompromised either through age or through a comorbidity like HIV.