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The Nutritional Geometry Of Ageing In A Rodent Model
Funder
National Health and Medical Research Council
Funding Amount
$979,269.00
Summary
A central belief in ageing research is that eating fewer calories prolongs life, and that the source of calories (carbohydrate, fat or protein) is irrelevant. However, a critical assessment indicates that this conclusion is premature. We will use recent techniques in nutrition to define for the first time in mammals the relationship between diet and ageing in a normal and a prematurely ageing strain of mice. The project will provide a novel nutritional approach for promoting healthy ageing.
Does Caffeine Affect The Development Of The Very Immature Brain: Dose Response Relationship?
Funder
National Health and Medical Research Council
Funding Amount
$668,386.00
Summary
Premature birth is a major health problem worldwide. Preterm babies often develop apnoea of prematurity (AOP), which is commonly treated with caffeine. Trials indicate that preterm babies treated with low dose caffeine have less neurodevelopmental disabilities at 18 months. Higher doses of caffeine are often needed to reduce AOP but the risk of this is unknown. We will study the short and long-term effects of increasing doses of caffeine on the developing brain in a long-gestation species.
Cell Type Specific Biologic Responses To HIV Infection
Funder
National Health and Medical Research Council
Funding Amount
$636,242.00
Summary
The way in which HIV alters the internal environment of its target cells to facilitate its growth will be examined. These changes enhance its ability to gain a toehold in the human body after entering the genital tract and its persistence for life in the brain and elsewhere in the body.
The Role Of Chemokines In Establishing HIV Latency
Funder
National Health and Medical Research Council
Funding Amount
$372,049.00
Summary
Although antiviral therapy is effective in controlling HIV, therapy must be continued life-long because the virus cannot be cleared from long lived infected CD4+ T cells that are silently or latently infected. In this proposal we will explore the mechanism of how HIV can enter these resting CD4+ T-cells and establish long lived latent infection. Understanding this process may potentially lead to new strategies to cure HIV infection.
Surface Tension Of Upper Airway Lining Liquid: Role In Obstructive Sleep Apnoea Hyponoea Syndrome
Funder
National Health and Medical Research Council
Funding Amount
$494,833.00
Summary
The obstructive sleep apnoea hypopnoea syndrome (OSAHS) refers to a condition in which throat blockage occurs during sleep leading to breathing difficulties, including cessation of breathing for short periods of time. OSAHS affects both men and women but is amongst the commonest of chronic disorders of adult males, occurring in 5% of men over the age of 45 years. In the proposed studies we will examine the effect that the liquid layer that lines the throat, has on the ability of the airway to st ....The obstructive sleep apnoea hypopnoea syndrome (OSAHS) refers to a condition in which throat blockage occurs during sleep leading to breathing difficulties, including cessation of breathing for short periods of time. OSAHS affects both men and women but is amongst the commonest of chronic disorders of adult males, occurring in 5% of men over the age of 45 years. In the proposed studies we will examine the effect that the liquid layer that lines the throat, has on the ability of the airway to stay open during sleep. In particular we will examine whether coating the throat with a substance that decreases stickiness will help to prevent the occurrence of episodes of throat blockage during sleep in persons with OSAHS. We will also explore the role of saliva production and swallowing during sleep in maintaining a low stickiness of the throat and whether this liquid lining is abnormal in OSAHS patients. These studies will establish the potential usefulness of decreasing the stickiness of the liquid lining the throat as a treatment for OSAHS.Read moreRead less
Stress During Pregnancy And The Developmental Origins Of Renal Disease In Aboriginal Australians
Funder
National Health and Medical Research Council
Funding Amount
$866,044.00
Summary
There is an epidemic of renal failure in Aboriginal people who also have high rates of premature birth of small babies. This project aims to understand the causes of kidney failure in Aboriginal people through testing if stress during pregnancy leads to the birth of preterm, small babies with small poorly formed kidneys that lead to kidney failure in later life. The effect of stressors impacting on pregnant women including infections, exposure to smoking and social stressors will be examined.
Immunising Aboriginal Mothers With Pneumococcal Polysaccharide Vaccine To Prevent Infant Ear Disease And Carriage
Funder
National Health and Medical Research Council
Funding Amount
$1,131,530.00
Summary
Aboriginal children experience the highest rates of acute and chronic ear infections in the world, with resultant permanent ear damage, hearing loss and educational disadvantage. These infections are mainly bacterial, and Streptococcus pneumoniae (pneumococcus) is the predominant pathogen. Pneumococcal colonisation and infection begins within days of birth, many months before any potential immunological protection from infant pneumococcal conjugate vaccine may be expected. New strategies are nee ....Aboriginal children experience the highest rates of acute and chronic ear infections in the world, with resultant permanent ear damage, hearing loss and educational disadvantage. These infections are mainly bacterial, and Streptococcus pneumoniae (pneumococcus) is the predominant pathogen. Pneumococcal colonisation and infection begins within days of birth, many months before any potential immunological protection from infant pneumococcal conjugate vaccine may be expected. New strategies are needed to eliminate, or at least delay, this early-onset pneumococcal colonisation. One such strategy is the administration to the mother of pneumococcal vaccine, which may protect the newborn infant by leading to higher titres of transplacental or breast milk pneumococcal antibodies and-or by reducing carriage (and transmission to the infant) of maternal pneumococci. Previous small studies using this strategy have been encouraging, but there have been no studies properly evaluating carriage or disease endpoints in infants. The polysaccharide pneumococcal vaccine is currently recommended for all Aboriginal and Torres Islander persons aged 15 years or more in the Northern Territory but uptake of the vaccine has been poor. We propose to conduct a pilot study to determine if maternal immunisation with this vaccine, either in the third trimester of pregancy of immediately following delivery, can reduce pneumococcal carriage and the prevalence of middle ear disease among Aboriginal infants at seven months of age. We aim to recruit 210 Aboriginal women who have uncomplicated pregnancies from Darwin and remote communities in the Top End of the Northern Territory. Each subject and their infant offspring will be followed-up after vaccination and at birth, one , two and seven months after birth.Read moreRead less