[Cognitive and emotional disorders in university students and teachers: the possibility of treatment with recognan (citicoline)]. / Kognitivnye i psikhoémotsional'nye narusheniia u uchashchikhsia i prepodavatelei vuzov: vozmozhnosti korrektsii s pomoshch'iu preparata rekognan (tsitikolin).

AIM: To study the efficacy of recognan (citicoline) in treatment of cognitive, emotional, autonomic, asthenic disorders in university students and teachers. MATERIAL AND METHODS: Fifty-eight subjects (17 men and 41 women), mean age 27.75±12.05 years, including who 42 students and 16 teachers were studied. The sample was randomized into 2 groups (29 each): the main sub-group received oral therapy with recognan for 30 days, while the daily dosage was 500 mg (5 ml). In the control group, no drug therapy was performed. Patient's state was assessed with a large battery of psychological tests and psychometric scales. The follow-up period was 30 days. All participants were examined three times (initially, in the middle of the study (day 15), in the end of the study (day 30)). RESULTS AND CONCLUSION: Asthenic state was detected in 69%, autonomic dysfunction in 82.7%, sleep disorders in 75.8% of subjects. A high level of state anxiety was revealed in 22.2%, trait anxiety in 29.8%, a high level of stress was determined in 6,9%. It is shown that the use of recognan (citicoline) has a positive effect on compensation of autonomic and asthenic disorders, improves cognitive status, corrects psycho-emotional disorders, when used as a short (2 week) and month course.

[Aminoaciduria databases]. / Baza dannykh aminoatsidurii.

Electronic encyclopaedia of human hereditary disorders of amino acid metabolism (aminoacidurias) has been created. The disease inheritance, gene location, gene mutations, biochemistry, and gene therapy of aminoacidurias are described in most detail. The database (DB) is integrated with international DBs available in Internet. The electronic encyclopaedia may serve as an educational system connecting medicine with modern molecular genetics.

[The mutagenic action of the DNA fragments of bovine adenovirus type 3 (BAV-3) containing early E1 (oncogene) and E4 regions]. / Izuchenie mutagennogo deistviia fragmentov DNK bych'ego adenovirusa tipa 3 (BAV-3), soderzhashchikh rannie oblasti E1 (onkogen) i E4.

A study of mutagenic action of DNA fragments of bovine adenovirus type 3 (BAV-3), containing early E1 (oncogenic) and E4 regions has been carried out. Viral DNA was digested with Xba 1 restriction endonuclease. The mutagenic effect revealed itself by induction of resistance to 6-mercaptopurine in Chinese hamster cells. The data obtained suggest that the early regions E1 and E4 can cause mutagenic effect in mammalian cells.

Novel mutation identified in the PAH gene.

The investigation of a DNA-amplified fragment of a phenylketonuria (PKU) patient by sequencing reveals a novel mutation in the PAH gene. This mutation represents the deletion of a single base (guanine) localized at the intron 11/exon 12 junction. This newly described mutation may be a frameshift or a splicing mutation. The identified mutation expresses phenotypically as the severe form of PKU.

[Mutagenic action of the DNA of the highly oncogenic bovine adenovirus type 3 (BAV-3)]. / Mutagennoe deistvie DNK vysokoonkogennogo bych'ego adenovirusa tipa 3 (BAV-3).

The induction of mutations to the 6-mercaptopurine resistance has been studied in Chinese hamster cells after transfection with highly oncogenic bovine adenovirus type 3 DNA (BAV-3). A statistically significant increase in the yield of resistant mutants is induced by viral DNA after two days expression time. The value of induction varies from 56,12 X 10(-5) to 70,02 X 10(-5). The comparison of the mutagenic activity of DNA and the intact viral particles has revealed that the number of DNA molecules must be higher than after infection with the whole virus to obtain a similar effect.

Distribution of some point mutations in the phenylalanine hydroxylase gene of phenylketonuria patients from the Moscow region.

Thirty-one unrelated phenylketonuria patients from the Moscow region were screened for mutations in the phenylalanine hydroxylase gene at the following codons: 408, 158, 261 and IVS-12. For detection of point mutations, polymerase chain reaction amplification was applied with allele-specific oligonucleotide hybridization. The following mutation frequencies were determined: codon 408-56.4%; codon 158-8.1%; codon 261-3.2%, and IVS-12-16%.