Showing posts with label PhD. Show all posts
Showing posts with label PhD. Show all posts

Tuesday, November 06, 2012

British Equine Laminitis Research Expands: Why Are Some Horses More at Risk?

New research will look at blood flow to and within the horse's foot to determine why some horses and ponies are pre-disposed to laminitis. The research will be conducted at the Royal Veterinary College in Great Britain. This plastination casting of the blood supply shows the intricate variety of types of blood vessels that serve the foot. A dead horse's foot was injected with plastination material and the foot was treated to remove all evidence of tissue except the plastination. In this model, the blood vessels of the sole were removed to allow a full view inside the foot.  Corrosion casts like this one are sold by Hoofcare Publishing for educational and professional use.
Research announcement:

Great Britain's Royal Veterinary College (RVC) and the WALTHAM® research group are pleased to announce that veterinarian Elizabeth Finding, has joined them and the WALTHAM®-led International Laminitis Consortium to start her PhD on laminitis.

Elizabeth Finding
Finding will continue the essential search into why some horses and ponies have an increased risk of laminitis.

Laminitis is well-recognised as a major global welfare issue; it is a disease causing pain and suffering in those affected. Understanding why some individuals are prone to develop this painful--and potentially fatal--condition has been one of the major goals of the Laminitis Consortium so that targeted preventative measures can be put in place.

Anecdotal information has suggested that there is often an increase in incidence in laminitis following a bout of cold frosty weather. Previous work undertaken at the RVC has suggested that temperature may influence the reactivity of certain blood vessels of the hoof.

As part of her four-year PhD project. Finding will develop novel methods of assessing blood flow so that she can analyze changes associated with diet and season. In addition, she will be comparing innovative markers of blood vessel health between those that are and are not prone to laminitis.

Finding explains: “We hypothesise that ponies prone to laminitis have a dysfunction of the cells lining the blood vessels ("endothelial cells"). This may make them less effective in generating mediators which normally continuously dilate blood vessels and thus protect against the blood vessel constriction. It is thought that abnormal constriction may be initiated by the ingestion of too much rich grass especially under adverse environmental conditions."

The WALTHAM®–initiated International Laminitis Consortium comprises world-leading equine veterinary, nutrition and research experts interested in collaborating on the important topic of laminitis. It includes Dr Nicola Menzies-Gow and Professor Jonathan Elliott of the RVC, Professor Pat Harris of the WALTHAM® Equine Studies Group, and Clare Barfoot of Mars Horsecare UK Ltd.

(End of announcement)

•••••

From Hoofcare and Lameness: Elizabeth Finding is the lead author of a paper published in June 2012 in the American Journal of Veterinary Research (AJVR), "Evaluation of a technique for measurement of flow-mediated vasodilation in healthy ponies".

In that study, Finding and her colleagues tested between-pony and within-pony variations and interobserver and intraobserver agreements of an ultrasound technique for measurement of flow-mediated vasodilation (FMD) in healthy ponies. Testing and evaluation were favorable for using this technique in future research related to laminitis.

Finding is also the author of "Flow-Mediated Vasodilation in Healthy Ponies", published in the Journal of Veterinary Internal Medicine.

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© Fran Jurga and Hoofcare Publishing; Fran Jurga's Hoof Blog is a between-issues news service for subscribers to Hoofcare and Lameness Journal. Please, no use without permission. You only need to ask. This blog may be read online at the blog page, checked via RSS feed, or received via a digest-type email (requires signup in box at top right of blog page). To subscribe to Hoofcare and Lameness (the journal), please visit the main site, www.hoofcare.com, where many educational products and media related to equine lameness and hoof science can be found. Questions or problems with this blog? Send email to blog@hoofcare.com.  
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Thursday, May 25, 2006

Dutch Hoof Balance PhD Thesis "Distal Limb Development and Effects of Shoeing Techniques on Limb Dynamics of Today's Equine Athlete" by Meike Van Heel Published


"Distal Limb Development and Effects of Shoeing Techniques on Limb Dynamics of Today's Equine Athlete" has been published in The Netherlands! Dutch researcher Meike van Heel PhD has assembled her papers and dissertation on hoof balance into the pages of a lovely book. It is 174 pages, with color photos and art (though not enough of either).

Here's the blurb from our sale flyer on this book:
A landmark study of hoof balance and growth uses traditional and high-tech research modalities to bring new information to equine hoof science. Pressure mats, force plates, video gait analysis, radiography and keen observation of equine posture and behavior yield a document rich in the use of science to back up common sense. Studies examine the prevalence of uneven feet (so-called “high-low syndrome”). Documents how a horse compensates for hoof growth to maintain balance and how a rolled toe shoe aids in efficient movement and joint mechanics.

Chapters:
  • Lateral grazing behavior induced by foal conformation 
  • Potential consequences of uneven feet in foals 
  • Effect of trimming on dynamic pressure measurements of hoof balance 
  • Changing center of pressure and hoof-unrollment over 8-wk shoeing interval 
  • Hoof growth effects on P3 vs P2 joints 
  • Compensation for changes in growth between shoeing sessions 
  • Rolled toe effects on breakover in sound warmblood horses 
  • Discussion and Summary
Watch for Meike to be a lecturer at conferences later this year or next year. She will be consulting for Mustad on innovative development of products and trends from her base in Holland.

Meike was a featured speaker at the International Conference on Equine Locomotion, hosted by Dr Hilary Clayton at Michigan State University in 2004. Her research was featured in an article on gait analysis and videotaping of horse movement in Hoofcare & Lameness #78.

Note: Meike's book is no longer available for sale. If a new edition is printed, it will be announced on The Hoof Blog.

Text and photos © 2006 Hoofcare Publishing. Text and photos posted on “The HoofBlog”, a casual news source for subscribers and friends of Hoofcare & Lameness: The Journal of Equine Foot Science. Learn more (and subscribe online using our secure server) at http://www.hoofcare.com or write to Hoofcare Publishing, 19 Harbor Loop, Gloucester MA 01930 USA. Tel USA 978 281 3222; Fax 978 283 8775, or email hoofblog@hoofcare.com

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