OBJECTIVE This research aims to investigate magnetic resonance imaging (MRI) in the tibial epiphyseal growth plate development of Wistar rat. METHODS Fifty weanling Wistar rats were divided by a computerized blocking procedure into five groups. The rats received standard commercial feed with or without T-2 toxin additive, low-protein feed with or without T-2 toxin additive, and Kashin-Beck di...

PURPOSE To evaluate multiple MRI parameters in a surgical model of osteochondrosis (OC) in goats. METHODS Focal ischemic lesions of two different sizes were induced in the epiphyseal cartilage of the medial femoral condyles of goats at 4 days of age by surgical transection of cartilage canal blood vessels. Goats were euthanized and specimens harvested 3, 4, 5, 6, 9 and 10 weeks post-op. Ex vi...

Quantitative computed tomography was used to investigate the three-dimensional architecture and the density distribution of the cancellous structures of the proximal femur. We examined 10 femora from the cadavera of 10 individuals, 47-83 years old at the time of death. Three anatomic elements could be distinguished: the epiphysis, the epiphyseal scar, and the metaphysis. Although these elements...

The presence of enzymes in epiphyseal cartilage has long been recognized, but their rale in the process of calcification remains unsettled. Phosphatase (l-3), phosphorylase (4), and glycolytic activity (5,6) have been demonstrated in epiphyseal cartilage. Recent work suggests that mineralization of epiphyseal cartilage is related to the glycogen in the zone of hypertrophic cells of the epiphyse...

The organic matrix of the epiphyseal plate plays an important role in the mineralization of the tissue (I), and the knowledge of its chemical composition may be very useful for the understanding of the process. Complete analyses of bone (2) have been reported, but unfortunately very little information is available on the chemical composition of the epiphyseal plate. In the present study, hydrol...

Multiple cartilage-tipped osteomata are often congenital, hereditary, and fairly symmetrically bilateral. They occur near the growing ends of long bones in the vicinity of the epiphyseal cartilage; this gives strong support to the view that they arise in a sequestrated part, or ' rest', of the epiphyseal cartilage. They may therefore be common in cases where present or previous rickets have cau...

This study was carried out to prove the possibility of inhibition of long bones epiphyseal plates activity with photodynamic impact. Comparative analysis of the Chlorin E6 accumulation with transcutaneous and intraperitoneal administration mode, carried out on 175 laboratory mice showed the drug accumulates selectively in the epiphyseal plates of long bones, regardless of the mode of administra...

Optical manipulation of the magnetic anisotropy is demonstrated for bilayered manganites, La2-2xSr1+2xMn2O7, by means of femtosecond Kerr-rotation measurements. Upon the photoexcitation on the x=0.32 crystal, the magnetization exhibits the precessional motion for about 1 ns, revealing the directional change of the magnetocrystalline anisotropy from the c axis to the ab plane. This change of the...