1
|
Luss A, Kushnerev K, Vlaskina E, Vanyushenkova A, Mezhuev YO, Krivoborodov E, Toropygin I, Gavryushenko N, Vetrile M, Zaitsev V, Dyatlov V. Gel Based on Hydroxyethyl Starch with Immobilized Amikacin for Coating of Bone Matrices in Experimental Osteomyelitis Treatment. Biomacromolecules 2023; 24:5666-5677. [PMID: 37953507 DOI: 10.1021/acs.biomac.3c00653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2023]
Abstract
A polysaccharide gel containing covalently bound amikacin, a broad-spectrum antibiotic, was produced by using epichlorohydrin-activated hydroxyethyl starch (HES). The structure of the polymers was analyzed by 13C and 1H nuclear magnetic resonance (13C NMR and 1H NMR) and matrix-assisted laser desorption/ionization time-of-flight (MALDI-TOF) mass spectrometry. The sites of covalent attachment of amikacin to the epoxypropyl substituent and the HES backbone were determined. The antibacterial activity of the polymer was evaluated in vitro using the agar well diffusion method with the Staphylococcus aureus P209 strain. It was demonstrated that the polymer retained activity in the presence of bacterial amylase, which is released upon bacterial attack. The gel was applied for coating pores and surfaces of a biocomposite material based on a xenogenic bovine bone matrix. In vivo experiments showed the effectiveness of utilizing amikacin-containing biocomposite bone-substitute materials in the treatment of experimental osteomyelitis in rats using objective histological control and X-ray tomography.
Collapse
Affiliation(s)
- Anna Luss
- Centre for Strategic Planning and Management of Biomedical Health Risks of the Federal Medical Biological Agency, Moscow 119121, Russia
- Mendeleev University of Chemical Technology of Russia, Moscow 125047, Russia
| | - Kirill Kushnerev
- Centre for Strategic Planning and Management of Biomedical Health Risks of the Federal Medical Biological Agency, Moscow 119121, Russia
- Mendeleev University of Chemical Technology of Russia, Moscow 125047, Russia
| | - Elizaveta Vlaskina
- Mendeleev University of Chemical Technology of Russia, Moscow 125047, Russia
| | - Anna Vanyushenkova
- Mendeleev University of Chemical Technology of Russia, Moscow 125047, Russia
| | - Yaroslav O Mezhuev
- Mendeleev University of Chemical Technology of Russia, Moscow 125047, Russia
- A. N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences, Moscow 119334, Russia
| | - Efrem Krivoborodov
- Mendeleev University of Chemical Technology of Russia, Moscow 125047, Russia
| | - Ilya Toropygin
- V. N. Orekhovich Research Institute of Biomedical Chemistry, Russian Academy of Science, Moscow 119121, Russia
| | - Nikolai Gavryushenko
- N. N. Priorov National Medical Research Center for Traumatology and Orthopedics, Ministry of Health of Russia, Moscow 115478, Russia
| | - Marchel Vetrile
- N. N. Priorov National Medical Research Center for Traumatology and Orthopedics, Ministry of Health of Russia, Moscow 115478, Russia
| | - Vladimir Zaitsev
- N. N. Priorov National Medical Research Center for Traumatology and Orthopedics, Ministry of Health of Russia, Moscow 115478, Russia
| | - Valerie Dyatlov
- Mendeleev University of Chemical Technology of Russia, Moscow 125047, Russia
- MIREA-RTU-Lomonosov Institute of Fine Chemical Technologies, Moscow 119571, Russia
| |
Collapse
|
2
|
Tarasova N, Krivoborodov E, Zanin A, Toropygin I, Pascal E, Dyatlov V, Mezhuev Y. Anionic Polymerization of Ethyl 2-Cyanoacrylate Initiated by 1,3-Dimethylimidazolium (phosphonooxy-)oligosulfanide. Macromol Res 2022. [DOI: 10.1007/s13233-021-9104-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
3
|
Mike A, Dyatlov V, Vizi ES. Kainate-induced inhibition of voltage-activated potassium currents in cultured chick telencephalic neurons. Acta Physiol Hung 1996; 84:311-2. [PMID: 9219620] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Kainate indirectly produces an inhibition of voltage-activated outward potassium currents on cultured chick telencephalic neurons, besides directly evoking activation of AMPA/kainate receptors (current with linear I-V curve, reversal potential near 0 mV). The former effect is also mediated by AMPA/kainate receptors. The role of [Ca2+]i in the inhibition was investigated by whole cell- and nystatin-perforated patch-clamp technique. Elevation of [Ca2+]i evoked by the Ca2+ ionophores ionomycin and A23187 caused an inhibition of outward currents as well. When the elevation of [Ca2+]i is prevented, the inhibition is decreased. These results suggest that [Ca2+]i elevation may be involved in the process.
Collapse
Affiliation(s)
- A Mike
- Institute of Experimental Medicine, Budapest, Hungary
| | | | | |
Collapse
|