Discovery Early Career Researcher Award - Grant ID: DE120100992
Funder
Australian Research Council
Funding Amount
$375,000.00
Summary
The role of neuropeptides driving plasticity in the control of blood pressure and breathing. This project aims to understand how pathways in the brain, that control blood pressure, develop 'memory' after repeated episodes of low oxygen, as occurs in sleep apnoea. Based on the assumption that long-lasting excitatory actions are responsible for this change in nerve behaviour this project will increase knowledge about how the brain controls blood pressure.
Ultradian rhythms in basal metabolism; relationship to thermoregulation, cardiovascular function and behavioural arousal. Results from this project will be of basic theoretical biological importance, and may well provide a foundation for understanding basal metabolic regulation and its link with cardiovascular function. Our findings may provide a new foundation for discovering strategies that alter basal metabolic rate in a manner that improves health and reduces the incidence of obesity related ....Ultradian rhythms in basal metabolism; relationship to thermoregulation, cardiovascular function and behavioural arousal. Results from this project will be of basic theoretical biological importance, and may well provide a foundation for understanding basal metabolic regulation and its link with cardiovascular function. Our findings may provide a new foundation for discovering strategies that alter basal metabolic rate in a manner that improves health and reduces the incidence of obesity related disease such as heart attack and stroke. Thus this research proposal is of special relevance to National Research Priority 2: Promoting and Maintaining Good Health. Obesity and obesity-related medical conditions particularly affect older people, so that our research is also highly relevant to National Research Priority 2 sub-areas: Ageing well, Ageing productively.Read moreRead less
Cellular bases of enteric neural circuitry underlying gut propulsion. This project aims to investigate the neural bases of behaviour in the mammalian gut. The Enteric Nervous System (ENS) plays a critical role in the propulsion of intestinal contents. This project expects to establish how specific functional classes of enteric neurons control propulsion along the gut. By recording the simultaneous neural activity from hundreds of different functional classes of enteric nerve cells simultaneously ....Cellular bases of enteric neural circuitry underlying gut propulsion. This project aims to investigate the neural bases of behaviour in the mammalian gut. The Enteric Nervous System (ENS) plays a critical role in the propulsion of intestinal contents. This project expects to establish how specific functional classes of enteric neurons control propulsion along the gut. By recording the simultaneous neural activity from hundreds of different functional classes of enteric nerve cells simultaneously, whilst recording intestinal muscle electrical activity and the movements of the gut wall, the project expects to identify which enteric neurochemical classes of neurons generate specific motor patterns along the intestine.Read moreRead less
Functional tracing of brain circuitry by a novel approach. A genetically modified virus is taken up by axon terminals (the 'output' part of a nerve cell) and transported by the cell back to the cell body (its 'input' part). Once there, it makes a protein that makes the cell sensitive to blue light. This new tool may be instrumental in answering questions about nerve connections that cannot be answered in other ways.
Electrical activity in early enteric neuron development. Intestinal movements and secretion are critical to the good health and nutrition of both humans and animals. These functions are regulated by a large nervous system contained within the intestinal wall, the enteric nervous system. This project will identify how enteric nerve cells develop and how their behaviour influences the development of other enteric nerve cells. This is will provide an important base for more applied research aime ....Electrical activity in early enteric neuron development. Intestinal movements and secretion are critical to the good health and nutrition of both humans and animals. These functions are regulated by a large nervous system contained within the intestinal wall, the enteric nervous system. This project will identify how enteric nerve cells develop and how their behaviour influences the development of other enteric nerve cells. This is will provide an important base for more applied research aimed at developing treatments for diseases like chronic constipation and irritable bowel syndrome. It will also contribute to the growing knowledge about how epigenetic factors can modify genetically programmed development within the nervous system.Read moreRead less
How the gut nervous system interacts with bacteria. This project aims to reveal how the enteric nervous system of the gastrointestinal (GI) tract interacts with the gut microbiota. Gut function has largely been studied without considering microbiota. The project will use genetically modified animal models, image analysis of gut motility and sequencing of gut microbes, and develop neurophysiological methods to understand gut function. Expected benefits include better understanding of mechanisms u ....How the gut nervous system interacts with bacteria. This project aims to reveal how the enteric nervous system of the gastrointestinal (GI) tract interacts with the gut microbiota. Gut function has largely been studied without considering microbiota. The project will use genetically modified animal models, image analysis of gut motility and sequencing of gut microbes, and develop neurophysiological methods to understand gut function. Expected benefits include better understanding of mechanisms underlying antibiotic resistance, risks associated with discretionary caesarean sections and the benefits of breastfeeding.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE190101209
Funder
Australian Research Council
Funding Amount
$390,000.00
Summary
Genes underlying enteric neuron subtype differentiation. This project aims to use new RNA-sequencing technology to identify genes important for differentiation of several major enteric neuron subtypes. Proper development and function of the digestive tract is crucial for good health. Gastrointestinal function relies on the co-ordinated activity of neural circuits in the enteric nervous system. This project will advance Australia's knowledge base and research capabilities in the field basic devel ....Genes underlying enteric neuron subtype differentiation. This project aims to use new RNA-sequencing technology to identify genes important for differentiation of several major enteric neuron subtypes. Proper development and function of the digestive tract is crucial for good health. Gastrointestinal function relies on the co-ordinated activity of neural circuits in the enteric nervous system. This project will advance Australia's knowledge base and research capabilities in the field basic developmental neuroscience, by innovative use of Next Generation RNA-sequencing technology to investigate enteric neuron subtype differentiation. The project outcomes include the generation of neuron subtype specific progenitors from naïve stem cells, which will in the longer term have significant health benefits, as gastrointestinal dysfunction is a large health and economic burden in Australia.Read moreRead less
Mapping the connectome that controls blood pressure. The connections that an individual brain cell receives from other cells ultimately determines its behaviour. Using a revolutionary new technique, the project will create a map of the brain cells that control blood pressure.
Pontine control of adaptive breathing behaviour in health and disease. This project will develop an understanding of the fundamental brain mechanisms associated with adaptive breathing during behaviour such as speech or swallowing. Adaptive breathing is impaired in lung disease, dementia and autism. This project will provide new insight to global brain function and treatment of central respiratory disorder.
Development of sympathetic nerve pathways. The mature nervous system contains many types of neurons connected in precise ways. Developing neurons must make many decisions about what type of neuron to become and what connections to make. This study looks at the mechanisms that guide the developing neurons in these important decisions.