[A composite polyaniline-containing silica sorbent for DNA isolation].

A composite sorbent based on porous glass beads modified with thin polyaniline coating was prepared by precipitating aniline polymerization in the presence of carrier particles. It was shown that the modification ensures the uniform coating of the inner surface of the carrier pores with the polymer layer approximately 70 A thick. It was shown that the resulting material retains the initial porosity of the carrier and is selective in the separation of nucleic acids and proteins.

[Cloning and expression of a serine proteinase gene from Thermoactinomyces sp. in Bacillus subtilis cells].

A gene coding for thermostable serine protease from Thermoactinomyces sp. K50 is cloned and expressed in Bacillus subtilis cells. Restriction map of cloned DNA fragment is determined.

[Cloning and expression of thermostable secretory metalloproteinase genes from two Bacillus brevis strains in Bacillus subtilis cells].

Two closely related genes of thermostable Bac. brevis metalloproteases were cloned and expressed in Bac. subtilis cells.

[Histological features of interdigital muscles in lengthening of underdeveloped fingers in children].

There has been carried out histologic examination of vermicular and interosseal muscles in case of underdevelopment of fingers before and after the restoration of their length by method of distraction in 45 children aged 4-14 years. There has been stated that in case of congenital finger underdevelopment the hand muscles are subjected to hypoplasia. However they are endowed with high ability of regeneration and restore their structure in response to distraction after adequate regenerative changes.