The first detection of the sequence of bacteria from the Simkaniaceae family in surface waters in Poland.

The research article demonstrates the successful use of a combination of alginate hydrogel and autologous adipose derived mesenchymal stem cells for the treatment of subchondral bone cysts in horses, leading to an improvement in lameness symptoms.

Introduction and Background

• The research focuses on subchondral bone cysts (SBCs), which are a major cause of lameness in horses, especially those that are young and athletic.
• The formation of SBCs is believed to be closely tied to issues with bone growth and bone microstructure in individual horses.
• Existing methods for treating SBCs include pharmacological methods and surgical procedures, all with the aim of enabling reconstruction of the bone tissue inside the cyst.

Methodology

• The researchers propose and test a new form of treatment involving the use of a three-dimensional complex composed of alginate hydrogel and autologous adipose derived mesenchymal stem cells (ASCs).
• The efficacy of this treatment was tested at the in vitro level, wherein it was observed that this complex led to an increase in osteogenic and chondrogenic differentiation potential, as indicated by the upregulation of bone morphogenetic protein, osteopontin, collagen type I and aggrecan mRNA levels.
• In addition, the creation of a three-dimensional extracellular matrix (EM) was observed as a result of this treatment method.

In Vivo Testing

• The researchers then moved on to testing the alginate hydrogel-ASC complex on live subjects; in this case, 8 horses of various ages suffering from SBC-induced lameness.
• The 8 horses underwent experimental surgery in order to apply the treatment method and their clinical appearance, lameness and radiographic appearances were documented for monitoring purposes.

Results

• The results of the in vivo testing were quite promising, with an improvement in clinical symptoms observed in 87.75% of the test subjects (7 out of 8 horses) just 6 months post-operation.
• A key milestone was reached a year after the surgery wherein it was found that all the test subjects (100%, or 8 out of 8 horses) showed clinical improvement.

Conclusion

• These results offer strong support for the potential adoption of this treatment method as a standard for treating SBCs due to its ability to facilitate improvement in a condition as demanding as lameness in horses.