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Biomedical subjects

K Ivanov

Publications and source records attributed to K Ivanov.

23 records · Page 2Linked to original sources
PubMed1975

Immunogenicity of inactivated influenza vaccine, purified by adsorption chromatography on porous glas.

A chromatographic process has been developed for a mass purification and concentration of influenza virus. The final virus suspension, purified some 400 times, is characterized by its antigenic properties and protein content. The virus was killed by UV-light and the resulting vaccine tried on 345 people. The immunity level is 8 times higher than the control. In mice which were infected after immunization with a homologous and heterologous influenza virus strains a high protection index was found (10(6) EID50 for homologous and 10(4) EID50 for heterologous strains).

Adsorption↗
PubMed1975

[Our experience with the method of D'Amour and Smith].

The authors carried out studies on a group of analgetic preparations (morphine, lydol, thylidine, pentazocine and analgine) by the method of D Amour and Smith, using thermic painful stimulation. The experiments were carried out on white rats-young and adult of both sexes of the strain Wistar. The mean lethal dosis were determined as well as the mean effective doses and therapeutic indices. The experimental results showed that thylidine was the strongest analgetic agent with atherapeutic index of 67. The index of morphine was 63 and was close to that of thylidine, but without statistical significance. The remaining analgetic indices were with low indices: lyndiol-with 5, pentazocine - 12 and analgine - 2. The method used, according to our data, could be applied successfully on rats of both sexes, at various age groups and both strains. The method is convenient for testing analgetic activity of preparations from two basic types of analgetic agents-narcotic and nonnarcotic.

Analgesics, Opioid↗