Approaches to the assessment of quantitative composition of drugs based on natural peptides containing glycosaminoglycan-peptide complex


The  preparations  isolated  from  the  biomaterial  of  farm  animals  and  fish  were  studied. These  preparations (rumalon,  alflutop)  cannot  be  obtained  in  equal  proportions  and  concentrations  during  their  production. An algorithm for quantitative determination of components of peptides of natural origin based on the study of model drugs containing a glycosaminoglycan-peptide complex has been developed. Using infrared spectroscopy and high performance liquid chromatography, the concentrations of chondroitin sodium sulfate, hyaluronic acid, glucosamine, protein, free amino acids and amino acids that make up the peptides (alflutop and rumalon) were established. In comparison with the majority of monocomponent drugs registered in the territory of the Russian Federation and containing chondroitin sodium sulfate at a concentration of 100 mg/ml, glucosamine drugs (200 mg/ml), hyaluronic acid drugs (10 mg/ml) it was found that the main active components of the studied drugs were more than 50, 100 and 7 times smaller. At the same time, the preparations under study contained a large percentage of free amino acids or short-chain peptides. It indirectly suggests their participation in the clinical efficacy of drugs based on natural peptides.

The developed algorithm for quantitative determination of components of peptide preparations of natural origin, including common and generally available methods sequence (identification of samples by infrared spectroscopy in comparison with standard samples, quantitative determination of chondroitin sodium sulfate, hyaluronic acid, glucosamine, protein and amino acids by infrared spectroscopy and highly efficient liquid chromatography) is advisable to use when determining minimum specific values of contents (concentrations) of active components and adjuvants of peptide origin in studies and registration of drugs based on them, as well as to justify ways in order to search and explain the mechanisms of action of such compounds.

About the authors

Nikolai G. Vengerovich

Saint-Petersburg State Chemical and Pharmaceutical University, Saint-Petersburg, Russia; Institute of Military Medicine, Russian Federation of Ministry of Defense, Saint-Petersburg, Russia

Author for correspondence.
SPIN-code: 6690-9649
Scopus Author ID: 511722

Russian Federation, 197376, Russia, St. Petersburg, Professor Popov, house 14, lit. A; 195043, Russia, St. Petersburg, Lesoparkovaya, house 4.

Doctor of Medicine (MD), Professor of the Industrial Ecology Department, Deputy Head of Department State Research

Nikolai V. Efimov

Negosudarstvennoe uchrezhdenie zdravoohraneniia "Dorozhnaia klinicheskaia bolnitca na stantcii Cheliabinsk otkrytogo aktcionernogo obshchestva "Rossiiskie zheleznye dorogi", Saint-Petersburg, Russia

ORCID iD: 0000-0002-7703-0190
ResearcherId: X-1354-2019

Russian Federation, 195271, Russia, St. Petersburg, Prospect Mechnikova, 27.

Doctor of Medical Sciences, Professor, head of clinical research Department

Natalia I. Rogozhina

Peoples' Friendship University of Russia, Moscow, Russia


Russian Federation, 117198, Russia, Moscow, Miklukho-Maklaya str. 6.

master student

Vladimir I. Stepchenkov

Peoples' Friendship University of Russia, Moscow, Russia


Russian Federation, 117198, Russia, Moscow, Miklukho-Maklaya str. 6.

master student,


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