Researchers find familiar species pave the way for coral regrowth
contrast to most other species, reef-dwelling parrotfish populations boom in
the wake of severe coral bleaching.
surprise finding came when researchers led by Perth-based Dr Brett Taylor of
the Australian Institute of Marine Science (AIMS) looked at fish populations in
severely bleached areas of two reefs – the Great Barrier Reef in the western
Pacific and the Chagos Archipelago in the Indian Ocean.
Andreas Strasser and David Vaux win $50,000 CSL Florey Medal for Lifetime Achievement for identifying cell death triggers and using them to fight cancer.
Past CSL Florey Medallists include Graeme Clark, Ian Frazer, and Nobel Laureates Barry Marshall and Robin Warren.
In the late 1980s to early 1990s, two Melbourne scientists, Andreas Strasser and David Vaux, discovered the molecular processes that cause billions of cells in each of us to die every day. They showed that some cancer’s cells can evade this process of programmed cell death and ‘fail to die’. So far, their findings have led to powerful new treatments for leukaemia and opened a new field of research which generates 25,000 papers every year. And, they say, there is still much to learn.
Sky survey provides clues to how they change over time.
The direction in which a galaxy spins depends on its mass, researchers have found.
A team of astrophysicists analysed 1418 galaxies and found that small ones are likely to spin on a different axis to large ones. The rotation was measured in relation to each galaxy’s closest “cosmic filament” – the largest structures in the universe.
Filaments are massive thread-like formations, comprising huge amounts of matter – including galaxies, gas and, modelling implies, dark matter. They can be 500 million light years long but just 20 million light years wide. At their largest scale, the filaments divide the universe into a vast gravitationally linked lattice interspersed with enormous dark matter voids.
Public events in Sydney 11 Nov, Melbourne 18 Nov and online
Case studies/patients also available from the Mito Foundation.
The National Health and Medical Research Council (NHMRC) is
inviting all Australians to provide their views on the use of a new assisted
reproductive technology that might assist in preventing certain rare mitochondrial
diseases but which requires careful ethical and social consideration.
Consultation is open until Friday 29 November 2019.
endurance of heart cells and remarkable plasticity of breasts have won two
Queensland researchers $50,000 each in the annual Metcalf Prizes, awarded by
the National Stem Cell Foundation of Australia.
A novel citizen science project in New Caledonia finds an ‘astonishing’ number of venomous reptiles in a popular swimming spot.
A group of snorkelling
grandmothers is helping scientists better understand marine ecology by
photographing venomous sea snakes in waters off the city of Noumea, New Caledonia.
Two years ago the seven women, all in their 60s and 70s, who call
themselves “the fantastic grandmothers”, offered to help scientists Dr Claire
Goiran from the University of New Caledonia and Professor Rick Shine from
Australia’s Macquarie University in their quest to document the sea snake
population in a popular swimming spot known as Baie des citrons.
NHMRC invited all Australians to provide their views on the
use of a new assisted reproductive technology that might assist in preventing
certain rare mitochondrial diseases, but which requires careful ethical and
social consideration. Consultation is open until 29 November. An issues paper
is available at www.nhmrc.gov.au/mito.
On Saturday 19 October in Adelaide, NHMRC held its first
major event of the consultation – a citizens’ panel. Around 20 citizens randomly
selected from across Australia met over two weekends to hear from experts and
then prepared their own position statement.
Mitochondrial donation might be able to assist in the
prevention of mitochondrial DNA disease in an estimated 60 births per year in
this country. However, there are social and ethical issues to consider
using mitochondrial DNA from a donor
(using IVF technology) so that the child has DNA from three people
rights of children to know their full genetic heritage
potential risks and benefits of the technology, and
implications for future generations.
donation is in limited use in the UK and some other countries, but not
Australia. NHMRC is asking the Australian community to consider the social and
ethical issues associated with mitochondrial donation and will then provide
advice to the Australian Government.
Details on further events will be provided in future