Prospects for intranasal drug delivery systems with Ginkgo biloba in the treatment of cerebral circulatory disorders

Purpose: To analyze the range of currently available nasal medicines, and to study extant information on the use of Ginkgo biloba herbal complexes for the treatment of cerebral circulatory disorders of different etiologies. The study dwelt on the features and prospects of intranasal drug administration. Currently, intranasal administration is used primarily for the treatment of local symptoms. However, it has a much higher potential: the mucous membrane of the nasal cavity offers an opportunity for noninvasive treatment using systemic administration. Methods: The study involved the analysis of materials from information-retrieval systems, library databases, patent databases, and scientific information repositories such as e-Library. PubMed, Scopus, Google Scholar, as well as materials from the websites of manufacturers of herbal medicinal products and other herbal substances. Results: Herbal medicinal products have great potential in terms of intranasal administration. This is especially true of herbal medicines obtained through extraction of leaves of Ginkgo biloba, which have a broad spectrum of action, i.e., anti-aggregatory, venotonic, nootropic, anti-hypoxic, antioxidant, antiinflammatory, membrane-stabilizing, and capillary-protective effects. The range of Ginkgo biloba-based medicines calls for expansion, and this testifies to a good potential of these products in terms of further research and use. The analysis of literature and technical information showed the existence of a wide range of nasal medicines currently in use. However, only few drugs are used for the treatment of cerebrovascular diseases. Furthermore, there are no herbal medicines among these drugs, despite obvious advantages of herbal products such as ease of use, high bioavailability, and systemic action potential. Conclusion: The current status of research on nasal dosage forms of Ginkgo biloba herbal complexes warrants further development involving biopharmaceutical and pharmacological studies

Development and approval of quality standards for pharmaceutical substances of plant origin in the Russian Federation

Issues related to the creation of modern normative documentation specifying the quality of pharmaceutical substances of plant origin (medicinal plant material) are considered in this article. A brief historical background of the State Pharmacopoeia development is presented. With the help of a system research method and information-analytical method, a chart for the approval and inclusion of general pharmacopoeial monographs projects and pharmacopoeial monographs projects on medicinal plant materials in the State Pharmacopoeia of Russian Federation was developed and proposed taking into account Russian legislation. © 2018, Pharmainfo Publications. All rights reserved

Development and approval of quality standards for pharmaceutical substances of plant origin in the Russian Federation

Issues related to the creation of modern normative documentation specifying the quality of pharmaceutical substances of plant origin (medicinal plant material) are considered in this article. A brief historical background of the State Pharmacopoeia development is presented. With the help of a system research method and information-analytical method, a chart for the approval and inclusion of general pharmacopoeial monographs projects and pharmacopoeial monographs projects on medicinal plant materials in the State Pharmacopoeia of Russian Federation was developed and proposed taking into account Russian legislation. © 2018, Pharmainfo Publications. All rights reserved

Evaluation of the nomenclature of herbal expectorants on russian pharmaceutical market: Current status and future prospects

This review focuses on current data sources on medicinal plants possessing expectorant effects. The component characterization of biologically active compounds determining the specified pharmacological effect of herbal medicines was also described and analyzed. The nomenclature of expectorant drugs presented on the Russian pharmaceutical market was studied and trends have been identified. It is known that herbal preparations, as a rule, are multicomponent. Combined expectorant drugs that simultaneously affect various mechanisms of inflammation and cough are becoming increasingly popular in medical practice. It seems relevant to assess the proportion of the most commonly used components (as well as biologically active substances) that are currently used for the production of expectorant drugs. Expectorant herbal preparations may contain such groups of biologically active substances as polysaccharides, saponins, essential oils, alkaloids. Medicinal plant material with an expectorant effect is used to obtain liquid dosage forms: syrups, tinctures, infusions, decoctions, elixirs, drops, and oral solutions, as well as solid - tablets, capsules, granules, troches, powders. These drugs occupy their important niche in the pharmaceutical market of the Russian Federation. © 2020 EManuscript Technologies. All rights reserved

Polysaccharides of crude herbal drugs as a group of biologically active compounds in the field of modern pharmacognosy: Physicochemical properties, classification, pharmacopoeial analysis

This review provides an overview of polysaccharides as a multifaceted group of biologically active compounds; they are discussed in the framework of modern pharmacognostic analysis. Data on chemical classification, component composition, physicochemical properties, and the content of polysaccharides in crude herbal drugs in the Russian Federation are consistently presented and analyzed. Some general groups and major compounds are characterized taking into account the use in pharmaceutical practice. Polysaccharides are the products of secondary metabolism; some of them can be used in pharmacy as excipients, while others have pronounced pharmacological effects and are active pharmaceutical ingredients. Improvement and development of procedures for the pharmacopoeial. analysis of crude herbal drugs containing polysaccharides and preparations based on are important tasks of modern pharmacognosy. © 2020 EManuscript Technologies. All rights reserved

Coltsfoot leaves (Tussilago farfara L.) a promising source of essential amino acids

Objective: Free and bounded amino acids are one of the valuable biologically active substances (BAS) containing in medicinal plants with other BAS groups. The research aims to determine the profile and content of free and bounded amino acids in coltsfoot leaves infusion by HPLC-UV, as well as suggest alternative ways to use it in medicine. Materials and methods: Coltsfoot leaves (crushed herbal drug) were used as plant material for preparing infusion and analysis. Amino acids profile and content were analyzed by RP-HPLC-UV after pre-column derivatization with o-phthalaldehyde and 3-mercaptopropionic acid (OPA) (derivatization of primary amines) and with fluorenylmethyloxycarbonyl (FMOC) (secondary amines). The sources of scientific literature concerning the amino acid composition of crushed herbal drugs were also studied. Results: 10 free and 13 bounded amino acids were identified in coltsfoot leaves infusion. Total content was 44.04±2.20 mg/g (Arg > Tyr > Gln > Ala > Asn > Met > Ile > Val > Lys > Leu) and 57.79±2.89 mg/g (Arg > Gln > Lys > Tyr > Gly > Asn > Val > Thr > Ala > Ile > Nva > Leu > Met) respectively. Content of essential amino acids - 0,89±0,04 mg/g (5 free); 9,58±0,48 mg/g (5 bounded). Conclusions: Since the coltsfoot leaves contain a significant amount of arginine, studies involving the prevention and adjunctive treatment of viral diseases, including SARS-CoV-2 virus infection (COVID-19), are promising. © 2020 EManuscript Technologies. All rights reserved

Pharmacognostic studies of origanum L. Species medicinal plant raw materials

Objective: Russian Oregano (Origanum vulgare L.) and Turkish oregano (Origanum onites L.) are pharmacopoeial plants that are used for producing medicinal plant raw materials (crude herbal drugs). The aim of the study was to determine the composition and content of biologically active substances in Origanum crude herbal drugs. Materials and methods: Complex of modern physicochemical methods was used in pharmacognostical research. Thin-layer chromatography, gas-liquid chromatography was applied for the determination of crude herbal drugs composition. The content of total flavonoids in terms of cynaroside was determined by differential UV spectrophotometry, total tannins content – by redox titration, essential oil – by distillation. Microscopic analysis was performed on a Biomed-C2 microscope with 5×, 10× eyepieces, 4×, 10× and 40× objectives, photographies – were taken with a Canon Power Short SX 210 IS digital camera. Results: Thymol is a dominant component in essential oil. Two species contain a cynaroside (flavonoid). The content of essential oil in O. vulgare and O. onites herb was 0.12±0.03% and 2.60±0.02% respectively; the total flavonoids in terms of cinaroside – 0.98±0.02% and 1.25±0.01%; total polyphenols – 11.54±0.35% and 19.43± 0.72% (condensed polyphenols precipitated by gelatin – 4.94±0.15% and 13.62±0.21%); ascorbic acid – 0.35± 0.05% and 0.40±0.06%. Existing ones were modified and a number of new unified procedures were developed, allowing qualitative and quantitative analysis of phenolic compounds in O. vulgare and O. onites herb. A complex of anatomical and diagnostic features (the structure of the stomatal complex, simple hairs, ethereal-oil glands) was established to carry out CHD identification. Conclusion: Composition and content of the polyphenolic complex and hydrophilic biologically active compounds of Origanum vulgare L. and Origanum onites L. crude herbal drugs (CHD) were determined. The obtained data will be used to improve the existing regulatory documentation for Origanum crude herbal drugs standardization. © RJPT All right reserved

Pharmacopoeial analysis of inulin-containing medicinal plant raw materials and drugs

Background: Today, there are some unresolved issues and discussions concerning inulin quantitative determination in medicinal plant raw materials (MPRM). MPRM containing polyfructans or fructosans (inulin and others) are rather complex multicomponent matrixes with many interacting compounds. The article discusses the prospects for further standardization of inulin-containing pharmacopoeial MPRM that include, in addition to polysaccharides (inulin), other biologically active compounds with pharmacological activity. Materials and Methods: Different types of search tools such as Google scholar, Google, scientific literature, normative documentation of Russian Federation (State Pharmacopoeia of Russian Federation IV edition and others) electronic databases such as e-Library, Scopus, Web of Science, Pubmed had been searched and data obtained. Results: The pharmacopoeial spectrophotometric procedures of inulin determination in the Russian Federation are approved in a version that does not fully satisfy modern standardization criteria. Regulatory changes required in the near future. Conclusion: Undoubtedly, to determine inulin quantitatively, it is necessary to modify the existing spectrophotometric procedures and introduce an additional alternative, more specific HPLC-RID (or similar) ones. © 2020 Phcogj.Com

Modern approaches to the analysis of kelp (Laminaria sp.) as pharmacopoeial herbal drugs and food products

Background: Currently, the chemical composition of Laminaria J.V. Lamour. species is well studied; they have found applications in the food, cosmeceutical and pharmaceutical industries. The main groups of biologically active compounds are polysaccharides (alginic acid, laminarin, mannitol, fucoidan, and others) and minerals (iodine compounds, magnesium, potassium, calcium, iron) that are determined according to pharmacopoeial and All-Union State Standards requirements. Materials and Methods: For data obtaining various types of search tools and engines such as Google, Google scholar, scientific literature (including Russian sources), normative documentation of Russian Federation (State Pharmacopoeia of Russian Federation IV edition, All-Union State Standards, and others) electronic databases such as e-Library, Scopus, Web of Science, Pubmed were used. Results: In the course of this review study, a modern characteristic of the kelp thallus as a pharmaceutical, cosmeceutical, food substance of plant origin is presented. The data on the chemical composition, harvesting, and processing of raw materials are summarized. The standardization and safety issues of kelp thallus are considered taking into account modern pharmacopoeial and food international requirements. The approaches to the qualitative and quantitative analysis of biologically active compounds (polysaccharides, iodine) and the determination of safety indicators are studied. Conclusions: The regulatory documentation that is used in the quality control of kelp needs to be finalized and updated. For pharmacopoeial analysis, all possible physicochemical methods (gravimetric, titrimetric, spectrophotometric) should be presented in the newly approved monograph. In this case, modern procedures should be developed, including HPLC with various types of detection (determination of the carbohydrates profile and polysaccharides, including methods with acid and enzyme hydrolysis). This will ensure the required level of quality, the safety of kelp (Laminaria) raw materials. © 2020 EManuscript Technologies. All rights reserved

Methodical basis for analysis of monosaccharide profile of the polysaccharide complex in the mixture herbal product (pectorales species No 2)

Background: Mucolytic and expectorant drugs are important elements in the pharmacotherapy of respiratory diseases. Phytopectol No 2 (Pectorales species No 2) is one of the herbal multi-component drugs (herbal teas). Pectorales species No 2 (PS No 2) is a mixture of three types of medicinal plants presented on the Russian pharmaceutical market. It consists of coltsfoot leaves (40%), plantain leaves (30%), and licorice roots (30%). The PS No 2 infusion is a dosage form prepared from crushed or powdered plant material. The PS No 2 infusion exhibits expectorant and anti-inflammatory activity; it is used in the treatment of respiratory diseases and to facilitate the release of sputum. Purpose: This review study aims to collect and analyze the literature data concerning the composition and content of polysaccharides, their monosaccharide composition in PS No 2 and its components. Methods: We used different scientific databases such as PubMed, Scopus, Web of Science, e-Library, Google Scholar for information search. Result: Nowadays, synthetic drugs, herbal remedies, and combined medicines with expectorant action are presented on the Russian and world markets. Herbal medicines can be classified into single drugs containing one plant/component, and medicines with two or more plants/components. Herbal medicines take leading places in the segment of the mucoactive drugs market along with synthetic ones in the Russian Federation. Most of the PS No 2 polysaccharides are arabinogalactans, rhamnogalacturonans, galacturonans, galactans. The arabinose (up to 15%), glucose (up to 26%), galactose (up to 23%), rhamnose (up to 40%), as well as galacturonic acid (up to 26%) are presented in monosaccharide composition of PS No 2 polysaccharide complex. Conclusion: Polysaccharides of various types are the main group of biologically active compounds (BAC) in PS No 2. The monomer composition of the polysaccharides causing the pharmacological action of PS No 2 should be established to improve the standardization procedures of crude herbal drugs and to identify BAC. The ratio of these carbohydrates can serve as a marker parameter in the standardization of PS No 2. © 2020 EManuscript Technologies. All rights reserved