Prevention And Improved Management Of Paediatric Food Allergy
Funder
National Health and Medical Research Council
Funding Amount
$479,882.00
Summary
There is an urgent need to prevent food allergy and better manage its consequences. My research will identify: causes of food allergy (primary prevention); factors leading to adverse events in food allergic children (secondary prevention); and the role of food allergy in the ‘atopic march’ i.e. progression to other allergic conditions (tertiary prevention). The results of my research will be used to update policy and practice guidelines to change behaviour and improve clinical care.
Many approaches to the prevention and treatment of allergy and associated asthma are dependent on the identification of the allergens producing the inflammation. This applies to new methods of determining the exposure to allergens and measuring the effectiveness of procedures which minimise allergen exposure. Diagnostic and immunotherapeutic measures require reliable preparations of allergens. The presence of important allergens in extracts however can be variable and often low so it important t ....Many approaches to the prevention and treatment of allergy and associated asthma are dependent on the identification of the allergens producing the inflammation. This applies to new methods of determining the exposure to allergens and measuring the effectiveness of procedures which minimise allergen exposure. Diagnostic and immunotherapeutic measures require reliable preparations of allergens. The presence of important allergens in extracts however can be variable and often low so it important that the allergens be identified and monitored. It is also important that new forms of immunotherapy being developed consider the responses to all allergens. Allergy to the cat is, behind house dust mite, the second most frequent allergy associated with asthma in most developed countries and brief exposure to a cat frequently induces life-threatening attacks. Almost all of the study of cat allergens have concentrated on a single allergen called Fel d 1. Although it importance is undisputed critical reading of the literature show it is only responsible for 50% of the IgE binding in cat extracts and recent work on cross allergy to cat and dogs and experimental therapy based on Fel d 1 point to the importance of other allergens. Experience with other source of allergens has shown that at least several allergens are usually important. It is also apparent from other studies that some allergens which are difficult to detect in extracts, and cannot be readily studied by immunochemistry are important. This project will use both cDNA cloning and immunochemistry to identify and characterize the other cat allergens and determine there relative importance. In particular it intended that they can be used, along with Fel d 1, to develop new types of immunotherapy.Read moreRead less
The aim of this proposal is to test the safety of a novel immunotherapy based on Helicobacter pylori platform technology to treat childhood allergies. Repeated oral administration of killed H. pylori mimics colonisation in the stomach and assists the development of a balanced immune system without the associated disease risk of live H. pylori. To achieve this goal Professor Barry Marshall has assembled a cross-disciplinary team of experts from Industry, Academia and Clinic.
Centre Of Research Excellence In Eradicating Food Allergy: Prevention, Cure And Reducing Adverse Events
Funder
National Health and Medical Research Council
Funding Amount
$2,496,041.00
Summary
Australia has the highest reported rate of food allergy in the world. We aim to eradicate food allergy through improved prevention and cure, supported by evidence generated by our collaborative network of research. In addition, we aim to help prevent children with food allergy having anaphylaxis through improved public health policy and clinical pathways. As a second wave of the allergy epidemic, we are well positioned to turn back the tide of this newly emergent health threat to the public.
Risk Factors For Food Allergy And The Allergic March To Asthma In Childhood: The HealthNuts Study
Funder
National Health and Medical Research Council
Funding Amount
$1,876,796.00
Summary
Food allergy appears to represent a second epidemic of allergic disease. It is not known why some children grow out of their food allergy or how food allergy in the first year of life impacts asthma and allergy in later childhood. HealthNuts is a large study of 5300 children that can answer these questions. HealthNuts visited children at ages 1, 4 and 6 and requests funding to re-visit them at age 10. Results will help prevent children developing food allergy, asthma and the allergic march.
BCG Immunisation To Prevent Allergy In Children: An Intervention Trial
Funder
National Health and Medical Research Council
Funding Amount
$1,187,260.00
Summary
There has been a dramatic rise in allergic diseases (asthma, eczema, food allergy) worldwide and particularly in Australia, with up to 30% of children affected. There is evidence from small studies that BCG immunisation has beneficial effects that prevent an allergic type immune response later in life. In a large randomised trial we will determine whether BCG at birth prevents allergic disease by monitoring eczema and food sensitivity in infancy, both of which predict an allergic predisposition.
N-3 LCPUFA Supplementation In Pregnancy To Reduce Allergies In Early Childhood
Funder
National Health and Medical Research Council
Funding Amount
$813,423.00
Summary
Over the last 20 years there has been a dramatic increase in allergic diseases in Australia as well as many other industrialised countries. This may be due to changes in our environment or diet. Over this period of time there has also been an increase in the dietary intake of n-6 fatty acids from vegetable oils and a corresponding decline in the intake of n-3 fatty acids from fish. Studies now indicate that there is a plausible link between these dietary changes and allergic diseases. Furthermor ....Over the last 20 years there has been a dramatic increase in allergic diseases in Australia as well as many other industrialised countries. This may be due to changes in our environment or diet. Over this period of time there has also been an increase in the dietary intake of n-6 fatty acids from vegetable oils and a corresponding decline in the intake of n-3 fatty acids from fish. Studies now indicate that there is a plausible link between these dietary changes and allergic diseases. Furthermore, emerging data suggest that the potential benefits of increasing n-3 fatty acids may be greatest during pregnancy and before allergic responses are established. Our project aims to minimise allergies in children from families where at least one parent has an allergy. We will assess whether dietary n-3 fatty acid supplementation of pregnant women will result in fewer children with allergies at 1 and 3 years of age. If the proposed intervention is successful, it would be a safe, cheap, acceptable and effective strategy to prevent allergies in children at high risk.Read moreRead less
Maternal Diet Rich In Eggs And Peanuts To Reduce Food Allergies: A Randomised Controlled Trial.
Funder
National Health and Medical Research Council
Funding Amount
$3,719,516.00
Summary
Food allergies now affect more than 1 in every 10 children. Recently, babies have been found to be at risk of developing a food allergy even before they start eating solid foods. We have discovered that baby immune responses can be improved by mothers eating more eggs during the first weeks of breastfeeding. Thus we are undertaking this research trial to determine whether mothers regularly eating more eggs and peanuts during pregnancy and breastfeeding will reduce food allergies in their babies.
Early Introduction Of Dietary Allergen To Reduce The Population Prevalence Of Infant Food Allergy
Funder
National Health and Medical Research Council
Funding Amount
$412,468.00
Summary
Australia has the highest recorded prevalence of childhood peanut allergy, a potentially life-threatening condition. New evidence shows introducing peanut into the diet in infancy can reduce the risk of developing peanut allergy in high risk infants, and allergy prevention guidelines now recommend giving peanut before 12 months. This study will evaluate how effective these guidelines have been in promoting earlier peanut introduction and reducing the population prevalence of peanut allergy.
Extending The MIS BAIR Randomised Trial Of BCG To Prevent Childhood Allergy And Infection
Funder
National Health and Medical Research Council
Funding Amount
$939,504.00
Summary
BCG (used till recently to prevent tuberculosis) is a potential low cost and readily available vaccine which could reduce the rates of allergy and infection in Australian children. We propose to extend our existing NHMRC-funded trial, which studies whether BCG vaccinatinon given at birth prevents the development food allergy, eczema and infection in the 1st year of life, to see if this effect continues until 5yrs of age. At this age, we can also see if BCG vaccination at birth prevents asthma.