Freshly isolated frog rod outer segments are sensitive osmometers which retain their photosensitivity; their osmotic behavior reveals essentially the same light-sensitive Na(+) influx observed electrophysiologically in the intact receptor cell. Using appropriate osmotic conditions we have examined freeze-etch replicas of freshly isolated outer segments to identify the membrane which regulates t...

PURPOSE To evaluate whether midsagittal (abdominal) obesity in magnetic resonance imaging (MRI), waist circumference (WC) and body fat percentage are associated with lumbar disc degeneration in early adulthood. METHODS We obtained the lumbar MRI (1.5-T scanner) of 325 females and 233 males at a mean age of 21 years. Lumbar disc degeneration was evaluated using Pfirrmann classification. We ana...

Background: Chronic low back pain due to disc herniation is one of the common diseases in the community. In addition to the pain caused by this problem, which is a major complication, decreased and defective physical performance in daily living are other major concerns. Aim: To investigate the effect of combined therapeutic protocol (therapeutic exercises and massage) on the pain and physical p...

Filter paper discs saturated with dried blood can be used in the Immunotube solid-phase thyroxine radioimmunoassay. This assay utilizes polypropylene tubes to which antibody to thyroxine is covalently bound. The filter paper standards and samples are placed in the tubes, followed by an assay buffer that contains I125-labeled thyroxine and compounds to displace thyroxine from its binding protein...

BACKGROUND Detailed fluorescein angiographic findings in the disc circumference may be useful for evaluating the possible relation of the circumference to glaucomatous nerve damage. METHODS Fluorescein angiograms of 25 eyes of 25 subjects with primary open angle glaucoma were observed after they had undertaken Octopus perimetry. Based on the retinotopic projection, disc sectors and correspond...

As an inherent characteristic of materials, the fracture toughness is important parameter to study cracking behavior asphalt concrete mixtures. Although material compositions and environmental conditions have a significant effect on toughness, for certain testing environment, test condition including specimen configuration loading type may also affect obtained toughness. In this paper, applied ...

STUDY DESIGN An animal experiment about intervertebral disc allograft. OBJECTIVE To explore the feasibility to decellularize disc allografts treated by 6°Co Gamma Irradiation, and simultaneously, to assess the possibility to make use of the decellularized natural disc scaffold for disc degeneration biotherapy. SUMMARY OF BACKGROUND DATA Studies of both animal and human disc allograft transp...

In the conditions of Chuvash Republic in a long-term stationary experiment there has been studied effect crop rotations (grain- fallow and green manure) methods primary tilling soil (by plow PLN-3-35 to depth 24-26 cm; by combined unit KOS-3.0 14-16 disc header BDM-4-3.2 10-12 cm without autumn tilling) on cellulose-decomposing activity method setting up flax linen yield. The article provides 2...