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Invitation to participate in a PPID blue light research study

Researchers at University College Dublin today announced a collaboration with researchers at the University of Kentucky’s Gluck Equine Research Centre for a large-scale study to investigate the effects of blue light treatment in PPID horses over a 12-month period. The research team is led by Dr. Barbara Anne Murphy, Head of Equine Science within the School of Agriculture and Food Science at University College Dublin in close collaboration with Dr. Amanda Adams at the Gluck Centre.

The team at UCD are recruiting interest from owners of PPID horses/ponies that meet a specific set of criteria to investigate if blue light treatment can influence the symptoms of this debilitating condition of older horses. If you own or manage a horse or pony diagnosed with PPID, and which displays hypertrichosis (long curly hair coat), you can complete a short questionnaire to see if you are eligible to participate. Both medicated (e.g. Pergolide) and unmedicated horses/ponies are suitable. Participation in this study will help researchers and veterinarians to better understand PPID as a disorder of older horses, and evaluate the impact of blue light at alleviating some symptoms of the disease.

All selected participants will receive an Equilume Cashel blue light mask at the beginning (treatment group) or at the end (control group) of the study (Value: €700/$700). It is important to note that participation requires the monthly collection of hair samples from your horse/pony, the submission of photographs and the completion of bi-monthly online questionnaires. Participant applications will be accepted until Friday, October 22nd.

Suitable participants will be randomly assigned to either treatment (fitted with an Equilume light mask) or control (no additional light exposure) groups. The control group is as important as the treatment group and will allow the collection of valuable data related to the seasonal changes in symptoms of PPID horses. The data collected will contribute significantly to knowledge of how PPID horses’ coat condition is affected throughout the year, and the results will help with the future management of this important condition.

 

Follow this link to complete the questionnaire if you own or manage a horse/pony with PPID and are interested in joining our study: https://tinyurl.com/UCD-PPID-Study

Pituitary pars intermedia dysfunction (PPID), also known as Equine Cushing’s disease, is a debilitating condition that affects one in five horses and ponies over the age of 15. It is characterized by the growth of an abnormally long and curly hair coat, termed hypertrichosis. In addition, the heavy winter coat frequently does not shed adequately in the spring. This can cause poor heat regulation which leads to sweating in affected horses, and some discomfort in hot weather or after exercise.

Results of a recent study lead by Dr. Amanda Adams at the University of Kentucky suggested that blue light therapy may offer a potential treatment for reducing hypertrichosis in horses with PPID (see the research here: https://bit.ly/3ztIuJ2). The study found that PPID horses fitted with a blue light mask (Equilume) had lighter winter hair coats than untreated horses, and that hair coat growth was slowed. The use of blue light masks, which simulate daylight, artificially mimics a long summer’s day. More research is needed to confirm this finding, and also to evaluate other potential benefits for PPID horses of extending daylight using blue light.

Quote from Dr. Murphy: “We are excited about this important study, especially given the recent results from the University of Kentucky suggesting that blue light could help reduce some symptoms of PPID. We are hoping for a big response from owners of PPID horses/ponies so that we get the numbers we need for a thorough investigation.”

Quote from Dr. Adams: “One of the goal’s of my research programme at the Gluck Center is to help owners help horses with PPID. That is why I reached out to Dr. Murphy a few years ago with the novel idea of using the blue light mask as a way to extend day length and potentially modulate the biological response in PPID horses, both as a means to help us understand more about PPID and help manage the clinical symptoms.  Our recent study results are promising (https://bit.ly/3ztIuJ2), we just need to conduct this study on a larger scale and that’s exactly what this collaboration is aiming to do, and I’m thrilled to see it happen!”

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