1. De novo Biosynthesis of Purines in the Retina: Evolutionary Aspects

   • R. N. Etingof

   OriginalPaper Pages: 1 - 10

2. Participation of Pyridinecarboxylic Acids in Endocellular Regulation of Reproduction in Ciliates

   • I. V. Shemarova
   • E. B. Maizel'
   • A. E. Khovanskikh

   OriginalPaper Pages: 11 - 18

3. Study of Inhibitors of Proteinases in the Midgut Anterior Part of the Cockroach Nauphoeta cinerea

   • E. N. Elpidina
   • Yu. A. Rudenskaya
   • D. P. Zhuzhikov

   OriginalPaper Pages: 19 - 24

4. Cholinesterase Active Center. Statistical Analysis of Structure Variability

   • S. N. Moralev

   OriginalPaper Pages: 25 - 34

5. Activities of Lactate and Malate Dehydrogenase of the Sterlet and Russian Sturgeon under Conditions of Massive Spread of Muscle Pathology

   • E. V. Kuz'min
   • O. Yu. Kuz'mina

   OriginalPaper Pages: 35 - 42

6. Formation of the Digestive-Transport Conveyer of Carbohydrates in Rat Ontogenesis

   • Z. K. Akhmet'zyanova
   • K. R. Rakhimov

   OriginalPaper Pages: 43 - 47

7. On Interrelations between Temporal Parameters of the Calling Song of the Cricket Gryllus bimaculatus

   • P. V. Ozerskii
   • E. E. Shchekanov

   OriginalPaper Pages: 48 - 52

8. Membrane Potential Oscillations Produced by Excitatory Amino Acids in Isolated Spinal Neurons of the Lamprey Lampetra fluviatilis

   • I. V. Batueva
   • J. T. Buchanan
   • E. A. Tsvetkov

   OriginalPaper Pages: 53 - 64

9. Regional and Species Heterogeneity of Vascular Responses: Cholinergic Muscarinic Regulation of Motor Function of Blood Vessels of Rat and Frog

   • G. R. Leont'eva
   • A. I. Krivchenko

   OriginalPaper Pages: 65 - 74

10. Sex Dimorphism in Saccharin Consumption in Rat Ontogenesis. Effect of Age of Weaning

    • L. A. Vataeva
    • E. A. Vershinina
    • V. G. Kassil'

    OriginalPaper Pages: 75 - 82

11. Localization of Glutamate in the Nervous System of the Fly Drosophila melanogaster: An Immunocytochemical Study

    • I. Sinakevitch-Pean
    • M. Geffard
    • S. I. Plotnikova

    OriginalPaper Pages: 83 - 88

12. Chloride Cells, A Constituent of the Fish Olfactory Epithelium

    • N. N. Ruzhinskaya
    • P. A. Gdovskii
    • G. V. Devitsina

    OriginalPaper Pages: 89 - 94

13. Effects of Heparin, a Blocker of Inositol-Triphosphate Receptors, on Muscle Contractions in the Lamprey, Lampetra fluviatilis

    • G. A. Nasledov
    • I. V. Skvortsova
    • N. F. Skorobovichuk

    OriginalPaper Pages: 95 - 98