The levels of proteoglycan antigen were measured in joint aspirates from the hip of children with transient synovitis, septic arthritis, Legg-Calvé-Perthes' disease and congenital and traumatic dislocation. Significantly increased levels were found in children with transient synovitis and septic arthritis as compared with other conditions. We propose that the proteoglycan antigens in the joint fluid were released from the articular cartilage in a partially degraded form as a result of an increased rate of proteolytic degradation. In transient synovitis, the source of proteolytic activity may be chondrocytes activated by factors released by synovial cells. The release of joint proteoglycan may cause a temporary increase in deformability of the hip cartilage of the child that could be an important pathogenetic mechanism in some of the sequelae of these diseases.
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http://dx.doi.org/10.1002/jor.1100060313 | DOI Listing |
Phytomedicine
January 2025
Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China. Electronic address:
Background: Specific treatment for rheumatoid arthritis (RA) is still an unmet need. Yu-Xue-Bi (YXB) capsule effectively treats RA with blood stasis syndrome (BS). However, its mechanism remains unclear.
View Article and Find Full Text PDFArch Bone Jt Surg
January 2024
Department of Pediatrics, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
Objectives: Limping is a frequent reason for visits to emergency departments. The causes of limping in children are various, ranging from benign musculoskeletal problems to serious etiologies, such as malignancy and infections.
Methods: In this recent cross-sectional study, we evaluated the causes of limps in children referred to the pediatric rheumatology ward in northeast Iran.
Transl Anim Sci
December 2024
Department of Animal Biosciences, University of Guelph, Guelph, ON N1G 2W1, Canada.
The purpose was to determine local (articular) and systemic effects of intra-articular interleukin-1 in horses supplemented with a dietary PUFA supplement [STRUCTURE-Joint ()]. Sixteen (16) healthy, mature, light breed horses were randomly assigned to diets containing 0 or 120 mL ( = 8 per group) of ST-J for 30 d. On days 0 (prior to beginning supplementation) and 27, recombinant equine interleukin-1β () (75 ng) was injected into the left or right intercarpal joint to induce mild, transient synovitis.
View Article and Find Full Text PDFBMC Infect Dis
December 2024
Orthopedics, Chengdu Women's and Children's Central Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, 611731, China.
Background: Septic arthritis (SA) of the hip joint is a serious infection that can result in irreversible complications. Distinguishing septic arthritis from transient synovitis, the most common cause of hip pain in children, is crucial for preventing severe outcomes. Existing research has primarily focused on identifying clinical signs and laboratory findings that indicate high-risk patients who may need invasive diagnostic procedures; however, results have been inconsistent.
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