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Table 1 Histological findings of knee joints in the meniscectomized rabbit osteoarthritis model

From: Role of fibroblast growth factor 8 (FGF8) in animal models of osteoarthritis

Histological findings of synoviuma

Meniscectomy group (n = 6)

Sham group (n = 4)

Normal group (n = 4)

 

0

1+

2+

3+

4+

0

1+

2+

3+

4+

0

1+

2+

3+

4+

H&E staining

               

   Hyperplasia of synovial cell

0

0

5

1

0

1

0

3

0

0

4

0

0

0

0

   Fibrosis in connective tissue

0

0

1

5

0

0

0

1

3

0

4

0

0

0

0

   Inflammatory cell infiltration in connective tissue

4

0

1

1

0

4

0

0

0

0

4

0

0

0

0

KM1334 immunohistochemistryb

               

   Positive reactions in synovial cells

0

6

0

0

0

1

3

0

0

0

3c

1

0

0

0

   Positive reactions in fibroblastic cells

0

5

1

0

0

0

4

0

0

0

4

0

0

0

0

   Positive reactions in cartilage

6c

0

0

0

0

4

0

0

0

0

4c

0

0

0

0

Cartilage degeneration scorec (mean ± standard error)

6.0 ± 0.8

0.5 ± 0.5

0.0 ± 0.0

  1. aHistological findings criteria: 0, non remarkable; 1+, very slight; 2+, slight, 3+, moderate; 4+, marked. bKM1334; an anti-FGF8 antibody. cSafranin O/fast green staining sample examined using the modified Mankin scale.