PCR-Based Equine Gene Doping Test for the Australian Horseracing Industry.

The term 'gene doping' is used to describe the use of any unauthorized gene therapy techniques. We developed a test for five likely candidate genes for equine gene doping: EPO, FST, GH1, IGF1, and ILRN1. The test is based on real-time polymerase chain reaction (PCR) and includes separate screening and confirmation assays that detect different unique targets in each transgene. For doping material, we used nonviral (plasmid) and viral (recombinant adeno-associated virus) vectors carrying complementary DNA for the targeted genes; the vectors were accurately quantified by digital PCR. To reduce non-specific amplification from genomic DNA observed in some assays, a restriction digest step was introduced in the PCR protocol prior to cycling to cut the amplifiable targets within the endogenous genes. We made the screening stage of the test simpler and faster by multiplexing PCR assays for four transgenes (EPO, FST, IGF1, and ILRN1), while the GH1 assay is performed in simplex. Both stages of the test reliably detect at least 20 copies of each transgene in a background of genomic DNA equivalent to what is extracted from two milliliters of equine blood. The test protocol was documented and tested with equine blood samples provided by an official doping control authority. The developed tests will form the basis for screening official horseracing samples in Australia.

Free Online Decision Tools to Support Parents Making Decisions About Their Children's Chronic Health Condition: An Environmental Scan.

BACKGROUND: Medical decisions parents make on their children's behalf can be challenging. Free online decision support tools are created to help parents faced with these decisions. OBJECTIVE: We used an environmental scan to identify free, online tools that support parents in making decisions about their children's chronic health condition. We described the tools and assessed their potential to harm, content, development process, readability, and whether their use changed decision makers' knowledge and alignment of their preferences with their final decision. DATA SOURCES AND ELIGIBILITY: Decision aid repositories, Google searches, and key informants identified decision support tools. Eligible tools were freely available online and for parents of children with chronic health conditions. APPRAISAL METHODS: Two reviewers independently assessed the tools' quality based on the International Patient Decision Aid Standards (IPDAS). Tool readability was assessed using the Flesch Reading Ease test. RESULTS: From 21 free, online decision support tools, 14 (67%) provided sufficient detail for making a specific decision (IPDAS qualifying criteria). None sufficiently met IPDAS certification criteria necessary to reduce the possibility of patient harms when using the tool. Three (14%) were fairly easy or easy to read. Of those evaluated by developers (n = 6), 2 improved knowledge and 4 improved alignment of preferences with the available options. LIMITATIONS: Google searches and key informant sources are not replicable. CONCLUSIONS: Free, online decision support tools for parents of children with chronic health conditions are of variable quality, most are difficult to read, and there is limited evidence their use achieves intended outcomes. REGISTRATION NUMBER: Registered with Open Science Framework 20 July 2021(AEST) osf.io/b94yj.

Equine performance genes and the future of doping in horseracing.

A horse's success on the racetrack is determined by genetics, training and nutrition, and their translation into physical traits such as speed, endurance and muscle strength. Advances in genetic technologies are slowly explaining the roles of specific genes in equine performance, and offering new insights into the development of novel therapies for diseases and musculoskeletal injuries that cause early retirement of many racehorses. Gene therapy approaches may also soon provide new means to artificially enhance the physical performance of racehorses. Gene doping, the misuse of gene therapies for performance enhancement, is predicted to be the next phase of doping faced by horseracing. The risk of gene doping to human sports has been recognised for almost 15 years, and the introduction of the first gene doping detection tests for doping control in human athletes is imminent. Gene doping is also a threat to horseracing, but there are currently no methods to detect it. Efficient and accurate detection methods need to be developed to deter those looking to use gene doping in horses and to maintain the integrity of the sport. Methods developed for human athletes could offer an avenue for detection in racehorses. Development of an equine equivalent test will first require identification of equine genes that will likely be targeted by gene doping attempts. This review focuses on genes that have been linked to athletic performance in horses and, therefore, could be targeted for genetic manipulation. The risks associated with gene doping and approaches to detect gene doping are also discussed. Copyright © 2017 John Wiley & Sons, Ltd.