Fig. 4From: Sigesbeckia glabrescens Makino extract attenuated the collagen-induced arthritis through inhibiting the synovial hyperplasia and inflammationSGE alleviated the radiologic and pathological characteristics of hind paw joints. Photographs (a) and X-ray images (b) of the hind paws on day-50 after the first collagen immunization. Histopathological evaluation on the injury of toe joints (c) and ankle joints (d) with hematoxylin & eosin staining. Proteoglycan assessment on cartilage degeneration with Safranin O staining (e). (a, articular cavity; b, cartilage; c, synovial membrane; d, bone; e, pannus; f, bone erosion; g, inflammatory infiltration)Back to article page