[MORPHO-FUNCTIONAL CHARACTERISTICS OF KIMMERLE ANOMALY].

The study material included 105 isolated bone preparations of the atlas, 100 radiographs of the cervical region of the spine, 650 spiral computed tomography (SCT) scans and 224 protocols of duplex ultrasound scanning of extracranial portions of brachiocephalic arteries and transcranial duplex scanning. Kimmerle anomaly was detected in 18% of cases in the bone material, in 17% of the cases of SCT and in 15% of cases during radiological examination. The anomaly more often is unilateral, rarely--bilateral; it may be located medially or laterally, while the vertebral artery canal more frequently is closed, less commonly--open.

[Effect on low-molecular-weight heparin obtained using a chitinolytic complex on the anticoagulant activity of plasma in rabbits and rats].

The anticoagulant activity of low-molecular-weight heparin with an average molecular weight of 4.7 kD (LMWH-4.7) has been studied.

[Hydrolysis of chitosan sulfate by an enzyme complex from Streptomyces kurssanovii].

The possibility of enzymatic hydrolysis of chitosan was shown. The optimum conditions for the process are: sodium acetate buffer pH 6.0, 37 degrees C, 24 h, and the chitosan sulfate-protein volume ratio of 500:1 in the enzyme preparation.