Do horses suffer from irritable bowel syndrome?

The research focuses on the similar patterns between irritable bowel syndrome (IBS) in humans and colic and laminitis in horses. With the aim of potential improvements in identifying risk and treatment, it suggests a possible correlation between undigested food residues in certain illnesses in humans and horses, and also explores the potential use of metabolomic studies of urine and faeces.

Similarities between IBS in Humans and Diseases in Horses

• The research starts by describing how IBS in humans and colic and laminitis in horses exhibit similarities. These health issues are not caused by a single factor but by multiple causes.
• In both humans and horses, undigested food residues can pass from the small intestine to the colon, leading to bacterial fermentation. This process produces harmful chemicals, potentially leading to diseases such as IBS in humans and colic and laminitis in horses.
• While it is noted that such malabsorption may not be harmful in healthy humans, its consequences can be disastrous in horses.

Imbalance of Colonic Microflora

• The paper further discusses the effects of an imbalance in colonic microflora. After events like bacterial gastroenteritis or antibiotic treatment, an overgrowth of facultative anaerobes may occur.
• This imbalance can lead to malfermentation and IBS in humans. However, whether similar microscopic changes occur in the gut microflora of horses suffering from colic and laminitis is currently unknown.

Proposed Utilization of Metabolomic Studies

• The paper explores the prospect of metabolomic studies on urine and faeces as a way to detect such changes in horses’ guts.
• The researchers believe that these studies could help to identify horses at risk of colic and laminitis more accurately, and could provide better opportunities for the development of effective treatments.