Bioproduction and bioavailability of steroidal saponins, bioactives in herbal medicines. Steroidal saponins are a class of natural products that are common constituents of many herbal medicines and have been associated with many biological activities. Comprehensive studies into their biological activities are hampered by the small quantities available through isolation and the complexity of synthesis. The aim of this project is to identify, isolate and express the biosynthetic genes responsible ....Bioproduction and bioavailability of steroidal saponins, bioactives in herbal medicines. Steroidal saponins are a class of natural products that are common constituents of many herbal medicines and have been associated with many biological activities. Comprehensive studies into their biological activities are hampered by the small quantities available through isolation and the complexity of synthesis. The aim of this project is to identify, isolate and express the biosynthetic genes responsible for the critical steps in the synthesis of these compounds in the herbs themselves. This will allow for production of steroidal saponins using the isolated enzymes, facilitate biological studies and allow the production of critical standards required by the herbal industry for validation and regulation of herbal extracts.Read moreRead less
Neuroimaging changes underpinning improvements in cognition in the elderly. Natural supplements are often used to improve brain and cognitive function, however, we do not know how these supplements work in the brain. Using novel brain imaging scans, the project will investigate whether 12-month administration of two promising natural supplements improves brain markers of ageing and cognitive decline in an elderly population.
Nanoliposomal delivery of docosahexaenoic acid (DHA) to neuronal cells. Omega-3 fatty acids such as docosahexaenoic acid (DHA) are essential for brain function. They are effective as adjunct treatments for depression, but at high doses. The project will develop nanoliposomes to target delivery of DHA to brain cells. Efficient delivery of DHA to brain cells will increase its effectiveness as a dietary supplement and lessen the burden of disease.