Roles Of Injury-induced Inflammatory Response In Regulating Bony Repair At Injured Growth Plate Cartilage
Funder
National Health and Medical Research Council
Funding Amount
$366,301.00
Summary
Children's growth plate cartilage is responsible for bone lengthening. Due to popularity of sports and play, trauma-induced growth plate damage and subsequently bone growth defects are common in children, with up to 30% of growth plate injury cases resulting in growth abnormality, for which the present surgical correction is highly invasive and not fully effective. Although we know that the growth plate injury-induced bone growth defects result from bony repair of the injured growth cartilage, w ....Children's growth plate cartilage is responsible for bone lengthening. Due to popularity of sports and play, trauma-induced growth plate damage and subsequently bone growth defects are common in children, with up to 30% of growth plate injury cases resulting in growth abnormality, for which the present surgical correction is highly invasive and not fully effective. Although we know that the growth plate injury-induced bone growth defects result from bony repair of the injured growth cartilage, we largely don't understand why and how this bony repair occurs. Understanding mechanisms for this faulty bony repair of injured growth plate will be critical prior to effective biological treatments can be developed. Recently, using an injury model in young rats, we found that bony tissue formation at injured growth plate is preceded sequentially by inflammatory, fibrogenic, chondrogenic and osteogenic responses. The inflammatory response is an initial event and our recent studies suggest that inflammatory response recruits inflammatory cells and produces important molecules that could significantly influence subsequent fibrogenic, chondrogenic and osteogenic events leading to the bony repair of the injured growth plate cartilage. The current proposal further addresses roles of the inflammatory response and the molecular pathways of this response in regulating downstream bony repair events. This project will generate novel understanding on the faulty bony repair of injured growth plate, and will provide valuable information for developing cost-effective and simple therapeutic intervention that aims to prevent bony repair and to enhance cartilage regeneration of the injured growth plate in children.Read moreRead less
The great divergence, long-run growth and unified theories of economic growth. This project investigates why income has been close to subsistence levels for most of human history, and in particular, the factors that were responsible for take-off in Europe two centuries ago and then later in other countries. It is expected that both major and minor technological innovations have played a critical role in take-off.
Growth, IQ, diseases, and the great demographic transition. This project investigates firstly whether poor health and malnutrition among young children was a cause of severe cognitive impairment in the pre-industrialised West and in developing countries today, and secondly whether this has been a major factor behind the large disparities in income and growth over the 150 years since industrialisation.
MECHANISMS OF ABNORMAL EXPRESSION OF THE IGF2 GENE IN DISORDERS AFFECTING FOETAL GROWTH
Funder
National Health and Medical Research Council
Funding Amount
$560,434.00
Summary
The IGF2 gene is crucial for foetal growth. Only the copy inherited from the father is active, a phenomenon named parental imprinting. In some children with foetal overgrowth or growth retardation, the deregulation of imprinting of the IGF2 gene during the first days of foetal development will influence subsequent growth and will also have major implications in post-natal and adult life. We will investigate the mechanisms resulting in abnormal imprinting of the IGF2 early in development.