Towards A Chlamydia Vaccine For Males: The Key Role Of Mucosal IgA
Funder
National Health and Medical Research Council
Funding Amount
$418,978.00
Summary
Genital Chlamydia infections are the most common sexually transmitted infection in Australia with annual health costs of 90-160 million dollars. Infection rates in 15-29 olds are increasing at 15-20% per year in both females and males. Antibiotics are currently the treatment of choice, however antibiotic resistance is increasing and most infections are asymptomatic and not treated in the absence of screening programs. This project aims to develop a Chlamydia vaccine tailored to protect males .
Adolescent Males' Beliefs And Feelings About The Consequences Of A Partner's Pregnancy: A Survey And Intervention Study
Funder
National Health and Medical Research Council
Funding Amount
$170,095.00
Summary
Each year, in Australia, approximately 28,000 adolescents become pregnant. The psychological, social and financial cost of adolescent pregnancy in Australia is substantial, in both the long and short term. An unexpected finding in North American studies is that a substantial number of adolescent pregnancies occur by design. Prevention programs in Australia and elsewhere assume adolescents do not wish to become pregnant and focus on educating adolescents about causes rather than consequences. Res ....Each year, in Australia, approximately 28,000 adolescents become pregnant. The psychological, social and financial cost of adolescent pregnancy in Australia is substantial, in both the long and short term. An unexpected finding in North American studies is that a substantial number of adolescent pregnancies occur by design. Prevention programs in Australia and elsewhere assume adolescents do not wish to become pregnant and focus on educating adolescents about causes rather than consequences. Research conducted by one of us (JAQ) found that over 75% of pregnant teenagers said they had deliberately become pregnant. Another of us (JTC) studied 1,500 Australian adolescents attitudes and beliefs about pregnancy and parenthood. The findings showed high levels of idealisation, especially in males. Males have been largely neglected in adolescent pregnancy research. The first component of this study is a survey of 500 adolescents to investigate their attitudes and beliefs about pregnancy occurring in a sexual partner, and the consequences of that event for them both. The assessment tool is a computer role-play simulation with its starting point the announcement of a pregnancy. The intervention study involves 300 adolescents and comprises viewing and discussing a video in which 4 adolescent males talk about their experiences of the consequences of pregnancy in a sexual partner. The use of 4 groups with different sequences of assessment and intervention will enable us to ascertain the effectiveness of the intervention. Of particular interest is whether the video or the role-play makes any impact on idealised attitudes and beliefs. This research is the first undertaken on adolescent male attitudes and beliefs using a computer role-play. It will provide essential information for the development of effective, male-oriented prevention programs which focus on consequences as well as causes of adolescent pregnancy.Read moreRead less
Role Of Stem-progenitor Cells In Endometrial Regeneration And Endometriosis
Funder
National Health and Medical Research Council
Funding Amount
$437,720.00
Summary
We have discovered 2 types of adult stem cells in the lining of the uterus (endometrium) that are likely responsible for its ability to grow a new lining each month. This project aims to determine if endometrial stem cells are shed into the pelvic cavity during menstruation to cause endometriosis, a common, chronic disorder affecting 6-15% of women during their reproductive years and for which treatments are suboptimal. This knowledge may change how endometriosis will be treated in the future.
Oestrogens And The Metabolic Process: Regulatory Interaction With The GH-IGF-system In Health And Disease
Funder
National Health and Medical Research Council
Funding Amount
$547,970.00
Summary
Growth hormone (GH) plays a key role in controlling body metabolism, fat and muscle in adult life. The female hormone oestrogen controls how much GH is secreted and how well it acts. Drugs that act like or interfere with the action of oestrogen are used increasing for the treatment of many conditions e.g. growth, cancer and osteoporosis. This proposal examines their impact on cardiovascular and physical health.
The Metabolic Effects Of Oestrogens And SERMs: Regulatory Interactions With The GH-IGF-system In Health And Disease
Funder
National Health and Medical Research Council
Funding Amount
$379,142.00
Summary
This project extends work aimed at understanding how GH and sex hormones work together to optimise physical health in women and men. It addresses the benefits and safety of oestrogen compounds in relation to their effects on body fat and muscle (body composition). Oestrogen compounds are among the most widely used medicines and include tradition oestrogens (female hormone) and synthetic oestrogens called SERMs. Oestrogens are used in young women as oral contraception and in the postmenopause for ....This project extends work aimed at understanding how GH and sex hormones work together to optimise physical health in women and men. It addresses the benefits and safety of oestrogen compounds in relation to their effects on body fat and muscle (body composition). Oestrogen compounds are among the most widely used medicines and include tradition oestrogens (female hormone) and synthetic oestrogens called SERMs. Oestrogens are used in young women as oral contraception and in the postmenopause for replacement therapy. Body composition is an important determinant of fitness and health. Obesity reduces fitness and increases the risk of diabetes and heart attacks while muscle loss causes weakness and frailty. GH is a major regulator of body composition; it acts by breaking down fat and building muscle mass. We discovered that oestrogens, when taken as a tablet interferes with the action of GH and causes detrimental changes in body composition. On the positive side, we have exploited the GH blocking action to treat acromegaly. This is a debilitating disease of excessive GH production from a pituitary tumour and for which available drug treatments are very expensive and require injection. The effects of SERMs on body composition are unknown. SERMs are interesting compounds because they act like oestrogens in some but as oestrogen blockers in other tissues. These are widely used in the treatment of breast cancer and osteoporosis. The extent to which they interfere with the action of GH has not been studied. They may exert additional effects because they act on the pituitary gland to reduce the secretion of GH. They may also prove to be effective in acromegaly which could extend their usefulness to men. In summary, the work will provide important information on the long-term benefits of SERMs in patient groups that tend to be frail. It may also prove to be a simple and inexpensive treatment for acromegaly.Read moreRead less
BH3-only Proteins Are Critical For The Developmentally Programmed Death Of Oocytes: Impact On Ooctye Quality And The Fertile Lifespan
Funder
National Health and Medical Research Council
Funding Amount
$273,537.00
Summary
The ability of women to have healthy children, and the age at which menopause occurs, are largely dependent on the number and quality of the eggs stored in their ovaries. For unknown reasons, around two-thirds of all eggs die very shortly after they are made. We are unraveling the genes involved in determining whether an egg will live or die, and are investigating the role of these genes as _quality control sentinels", responsible for ensuring that only the highest quality eggs are ovulated.
Development Of Novel Vaccine Strategies To Prevent Genital Tract Chlamydial Infection
Funder
National Health and Medical Research Council
Funding Amount
$408,556.00
Summary
Genital tract chlamydial infection is the most common bacterial sexually transmitted disease world wide with 4-5 million cases occurring annually throughout the world. The incidence of chlamydial infection is increasing in the Australian population. The majority of infections in women are asymptomatic and, if untreated, go on to cause pelvic inflammatory disease, ectopic pregnancy and infertility. These conditions can be life threatening and are a significant public health cost. In the proposal ....Genital tract chlamydial infection is the most common bacterial sexually transmitted disease world wide with 4-5 million cases occurring annually throughout the world. The incidence of chlamydial infection is increasing in the Australian population. The majority of infections in women are asymptomatic and, if untreated, go on to cause pelvic inflammatory disease, ectopic pregnancy and infertility. These conditions can be life threatening and are a significant public health cost. In the proposal we will develop novel vaccine strategies, involving both intranasal immunisation and immunisation by direct application to the skin, to induce protection against genital tract chlamydial infection. These studies will lay the basis for human trials of a vaccine to prevent what is now the most common STD in Australia. Such a vaccine to target this chronic infection would represent a major advance in preventive healthcare for the maintenance of good health.Read moreRead less
Seminal Fluid As A Determinant Of Reproductive Health In Women
Funder
National Health and Medical Research Council
Funding Amount
$511,294.00
Summary
Healthy reproductive function is essential for conception and pregnancy. We have discovered that male seminal fluid can influence the female reproductive system after coitus. This project will define the actions of seminal fluid in the cervix and uterus, and the impact on fertility and defence against sexually transmitted infection. The findings will provide new insight on how men contribute to reproductive health in women, and lead to improved treatments for infertility and miscarriage.
Redox Cycling Of Quinones By Human Spermatozoa: A Potential Strategy For The Dual Regulation Of Fertility And STDs
Funder
National Health and Medical Research Council
Funding Amount
$314,625.00
Summary
The purpose of this research project is to develop a novel form of contraception that could meet the dual objectives of fertility regulation and prevention of sexually transmitted disease (STD). A particularly novel feature of this proposed spermicide-microbicide is that it has to be activated by spermatozoa i.e the formulation comprises a pro-spermicide that only generates the active principle on contact with sperm. This aspect of the method sets it apart from all other forms of topical contrac ....The purpose of this research project is to develop a novel form of contraception that could meet the dual objectives of fertility regulation and prevention of sexually transmitted disease (STD). A particularly novel feature of this proposed spermicide-microbicide is that it has to be activated by spermatozoa i.e the formulation comprises a pro-spermicide that only generates the active principle on contact with sperm. This aspect of the method sets it apart from all other forms of topical contraception because unlike barrier methods and vaginal creams or foams, its use will not be coitus related. Ultimately it is envisaged that the product could be incorporated into a soft pliable vaginal sponge and left in situ until such time as it becomes activated following intercourse. Such a method should be particularly acceptable to young women who are vulnerable to both STDs and unwanted pregnancy as indicated by (a) the relatively high rates of STDs in adolescent girls, particularly in the indigenous community, and (b) the fact that 50% of all recorded pregnancies to Australian women under 19 years of age end in abortion. The method exploits the susceptibility of human spermatozoa and pathogenic organisms responsible for STDs to oxidative stress and, in effect, mimics a naturally occurring cause of male infertility. If successful, this project would produce a female centred method of contraception and STD prevention that would revolutionize reproductive health care for young women worldwide, as well as generating intellectual property of considerable potential value to the nation.Read moreRead less
What Matters To Women Diagnosed With Breast Cancer During Their Reproductive Years? A Qualitative Investigation Of Fertility, Reproductive Health, Heritability, And Related Psychosocial Needs Using A Population-based Sample
Funder
National Health and Medical Research Council
Funding Amount
$363,158.00
Summary
Breast cancer in women of reproductive age is especially challenging because fertility can be reduced, pregnancy discouraged, and family formation compromised by the illness and its treatment. This research addresses major gaps in knowledge about the needs of young women with breast cancer. Interviews with 100 breast cancer survivors about fertility, family formation, experiences of health care, and ideas about approaches that may assist them will be used to improve fertility-related care.