Spontaneous vascular mineralization in the brain of horses.

This study investigates spontaneous vascular mineralization in the brains of horses, revealing that 60% of the examined horses aged between 3-10 years exhibited this condition, primarily within the pallidal arteries with deposits containing various minerals such as aluminum, phosphorus, zinc, calcium and iron.

Introduction and Methodology

• The research conducted looked at cerebral vascular mineralization in the brains of 3- to 10-year-old healthy horses.
• These samples were collected at an abattoir, meaning that the animal’s health wasn’t compromised due to the collection process.

Key Findings

• Mineralization was discovered in 12 of 20 horses, accounting for 60% of the sample. The process varied in degree but was primarily identified within the pallidal arteries.
• The research indicated two types of lesions; small globoid bodies found along capillaries, and amorphous deposits present in the wall of arterioles, small- or medium-sized arteries and veins.
• The lesions were strongly positive for the periodic acid-Schiff reaction, a method utilized to highlight glycogen and other substances in tissues, indicating that they possess a high carbohydrate content.
• However, they were only weakly positive for von Kossa’s stain, a technique normally used to detect calcium, and Berlin blue, a method used to identify iron deposits.

Elemental Analysis

• An elemental analysis of the deposit revealed the presence of several minerals:
• Large amounts of aluminum were found. This finding is significant due to the potential neuro-toxic properties of aluminum.
• Moderate amounts of phosphorus, zinc, calcium and iron were also identified.
• Only a small amount of sodium was found within the deposits.
• These results provide an interesting insight into the composition of these mineralized deposits and can potentially shed light on some of the underlying causes of this phenomenon.