Harnessing Tyrosine Metabolism To Combat Respiratory Diseases
Funder
National Health and Medical Research Council
Funding Amount
$866,467.00
Summary
Cross-talk between our immune system and the microbiome is central to health and disease. In particular, the gut microbiome has wide-ranging effects throughout the body, in part through the production of metabolites with immunomodulatory activity. We have discovered a novel subset of microbial metabolites which can protect mice against allergic airway inflammation, a model of asthma. We now aim to discovery how these metabolites work with a view towards developing them as therapeutics.
Presentation Of Metabolite Antigens By MR1 Molecules: A Fundamental System Of Immune Priming
Funder
National Health and Medical Research Council
Funding Amount
$883,832.00
Summary
Our immune system constantly monitors our body for disease-causing microbes, such as bacteria that cause illnesses like pneumonia or tuberculosis. Our cells have a molecular alarm-system called 'MR1' which alerts white blood cells that an infection by microbes is occurring, however this process is not well understood. This grant will allow me to discover the cells and molecular pathways that govern the MR1 alarm system, which may lead to new treatments against common diseases in our community.
The body’s normal function depends upon maintaining energy balance matching demand and supply. The body senses its energy status by monitoring metabolite concentrations. I have discovered a metabolite that controls multiple enzymes critical for energy homeostasis and appetite in the body that may provide new approaches to tackle obesity related disease. I have found the metabolite-binding pocket in many proteins and it may represent a major new regulatory network.
The dramatic increase in obesity and age-related metabolic disorders demonstrates the importance of gaining a better understanding of how cells and organisms regulate their energy stores. This project will identify novel molecular mechanisms that control the enzyme CaMKK2, which is a key regulator of whole-body energy metabolism. This will provide new opportunities to inform more effective strategies to tackle metabolic diseases, and improve health in an increasingly ageing population.
The Influence Of Gender And Steroid Hormones On Cerebrovascular NADPH Oxidase During Health And Disease
Funder
National Health and Medical Research Council
Funding Amount
$390,974.00
Summary
My research addresses several major questions regarding the regulation of brain blood flow and mechanisms that may contribute to stroke. There is confusion as to whether giving menopausal women hormone replacement worsens the effect of having a stroke. I propose that female hormones may lower blood flow to the brain after menopause and therefore cause more damage to the brain after stroke.
Complementary Medicines Based On Propolis Produced By Honeybees From Australian
Funder
National Health and Medical Research Council
Funding Amount
$285,855.00
Summary
Propolis produced by honeybees is a very complex mixture and its chemical composition varies in relation to its floral source. To produce propolis honey bees collect leaf bud and flowerbud exudates also secretions exuded from wounds in plants. These materials have high antibiotic activity as they have a natural function to protect delicate growing or wounded plant tissue from attack from microorganisms and animals. Honey bees use propolis to sterilize the hive and to protect it against outside i ....Propolis produced by honeybees is a very complex mixture and its chemical composition varies in relation to its floral source. To produce propolis honey bees collect leaf bud and flowerbud exudates also secretions exuded from wounds in plants. These materials have high antibiotic activity as they have a natural function to protect delicate growing or wounded plant tissue from attack from microorganisms and animals. Honey bees use propolis to sterilize the hive and to protect it against outside intruders and infection and to seal cracks in the hive. Consequently, humans have made use of propolis since ancient time for medicinal purposes. Modern research shows that a valuable property of propolis is its immunostimulant activity, now widely used in preventive medicine to boost the immune system. Furthermore, its antioxidant and anti-inflammatory properties are also believed to contribute to its current use in Complementary and Alternative Medicine (CAM). As part of research into the medicinal use of propolis produced in Australia, we identified two novel classes of biologically active constituents in Kangaroo Island (KI) propolis, which are for the first time identified to occur in propolis. Despite KI propolis being currently exported to Japan for use as CAM there is no study to determine its chemical composition or to evaluate its biological activities. Therefore we aim to research the KI propolis and evaluate its medicinal properties for use as CAM. Propolis from specific regions with defined floral sources and the identified constituents will be evaluated for their antioxidant property and protective activities against cell damaged after exposed to light source equivalent UV radiation of the sunlight with the aim to establish a defined propolis formula for topical use as CAM to prevent UV-induced skin cancers, known as melanoma, which is prevalent in Australia. This research will add value to a beekeeping product currently exported from KI and provide a health benefit.Read moreRead less