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5 results on '"Lapteva TI"'

1. [Untitled]

Author

Lapteva Ti, Min'kova No, Filippovich IuB, E. V. Mikodina, and M. V. Samsonova

Subjects
chemistry.chemical_classification, Lipid composition, Fatty acid, Lipid metabolism, Liver lipid, medicine.anatomical_structure, Biochemistry, chemistry, Lipid content, Lens (anatomy), medicine, Normal lens, lipids (amino acids, peptides, and proteins), Alanine aminotransferase, Developmental Biology
Abstract

This papers opens a series of publications on the mechanisms of cataractogenesis in the salmon fry. Biochemical features of normal lens development and cataractogenesis in fry of different age and age-related dynamics of the liver lipid composition during upon cataractogenesis will be dealt with, since lipids are most intensely synthesized in the liver, from where they are transported in the lens. Here, we describe the dynamics of lens lipid composition in the salmon fry, including the total lipid content and dynamics of individual classes. The data are analyzed on the fatty acid spectrum of the salmon fry lens, as compared to the human lens.

Published
2003
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2. [Aminotransferases in early development of salmonid fish].

Author

Samsonova MV, Lapteva TI, and Filippovich IuB

Subjects
Animals, Cell Compartmentation, Embryo, Nonmammalian enzymology, Hydrogen-Ion Concentration, Salmonidae growth & development, Salmonidae metabolism, Subcellular Fractions enzymology, Alanine Transaminase metabolism, Aspartate Aminotransferases metabolism, Salmonidae embryology
Abstract

The activities of alanine and aspartate aminotransferases were assessed in the embryos and juveniles of the rainbow trout Parasalmo mukiss L. and chum salmon Oncorchyncus keta W. Changes in subcellular localization of these enzymes and their activities were found at different pH optima in each subcellular fraction of the rainbow trout during ontogenesis.

Published
2005

3. [Aspartate- and alanine-aminotransferase in early development of keta].

Author

Samsonova MV, Min'kova NO, Lapteva TI, Mikodina EV, and Filippovich IuB

Subjects
Animals, Hydrogen-Ion Concentration, Alanine Transaminase metabolism, Aspartate Aminotransferases metabolism, Oncorhynchus growth & development
Abstract

We studied the activities of the marker enzymes of physiological state and adaptive reactions, aspartate and alanine aminotransferases, in early development of the keta Oncorhynchus keta. Aspartate aminotransferase with pH optima 6.8, 7.0, 7.6, and 8.0 and alanine aminotransferase with pH optima 7.0, 7.4, 7.6, 7.8, 8.0, and 8.2 were found in the eggs, larvae, and fry. The succession of enzymes with different pH takes place during ontogenesis, as well as stage specific changes in their activity. The maximum enzymatic activity was recorded in the larvae during their rise for "afloat." A correlation was established between the dynamics of enzymatic activity and soluble nitrogen and amine nitrogen contents.

Published
2003

5. [Effect of the synthetic Leu enkephalin dalargin on the protein and nucleic acid content of the muscles in the rainbow trout].

Author

Lapteva TI, Mikodona EV, Fomina GG, and Filippovich IuB

Subjects
Animals, DNA analysis, DNA metabolism, Enkephalin, Leucine pharmacology, Muscle Proteins analysis, Ovum drug effects, RNA analysis, RNA metabolism, Time Factors, DNA drug effects, Enkephalin, Leucine analogs & derivatives, Enkephalin, Leucine-2-Alanine analogs & derivatives, Muscle Proteins metabolism, RNA drug effects, Salmonidae metabolism, Trout metabolism
Abstract

After dalargin treatment of fish eggs (at the stage of swollen egg envelopes) and on juveniles (at the stage of early meiotic oocyte appearance in gonads) DNA content is observed to raise up to 85% and 66%, respectively in yearlings and up to 20% and 23% respectively in second-year fish as compared to the control ones. Dalargin also influences the exchange of muscle RNA in yearlings and second-year rainbow-trout. Dalargin effect is higher when peptide influences at the very onset of organism differentiation.

Published
1989

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