Magnesium Orotate Influence on Thoracic Aorta in Laboratory Rabbits Receiving Levofloxacin
Scientific relevance. Fluoroquinolones are antibacterial agents associated with adverse drug reactions (ARDs), including aortic lesions; this ARD risk limits the use of fluoroquinolones. Moreover, fluoroquinolones have been reported to induce lesions in other connective tissues (cartilage, tendons),...
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| Format: | Article |
| Language: | Russian |
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Ministry of Health of the Russian Federation, Federal State Budgetary Institution «Scientific Centre for Expert Evaluation of Medicinal Products»
2022-03-01
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| Series: | Безопасность и риск фармакотерапии |
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| Online Access: | https://www.risksafety.ru/jour/article/view/393 |
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| author | N. V. Izmozherova D. V. Zaytsev V. V. Bazarny V. M. Bakhtin L. G. Polushina M. A. Kopenkin D. V. Tolstykh E. A. Mukhlynina |
| author_facet | N. V. Izmozherova D. V. Zaytsev V. V. Bazarny V. M. Bakhtin L. G. Polushina M. A. Kopenkin D. V. Tolstykh E. A. Mukhlynina |
| author_sort | N. V. Izmozherova |
| collection | DOAJ |
| description | Scientific relevance. Fluoroquinolones are antibacterial agents associated with adverse drug reactions (ARDs), including aortic lesions; this ARD risk limits the use of fluoroquinolones. Moreover, fluoroquinolones have been reported to induce lesions in other connective tissues (cartilage, tendons), associated with magnesium deficiency.Aim. The study aimed to analyse the effects of magnesium orotate on the thoracic aorta in laboratory rabbits treated with levofloxacin.Materials and methods. The study randomised laboratory rabbits into 3 groups of 10 animals each to receive oral doses of either the carrier solution (control group), or 150 mg/kg/day levofloxacin (levofloxacin group), or 150 mg/ kg/day levofloxacin and 140 mg/kg/day magnesium orotate (levofloxacin/magnesium group). After 14 days of treatment, venous blood samples were taken to determine the serum levels of magnesium, matrix metalloproteinase-9 (MMP-9), and tissue inhibitor of matrix metalloproteinase-1 (TIMP-1), as well as MMP-9 to TIMP-1 ratios. The authors conducted morphological and mechanical characterisation of thoracic aorta samples; the mechanical characterisation involved uniaxial tensile testing. Data are presented as the mean and standard deviation values.Results. The study did not detect any changes in the serum MMP-9, TIMP-1, and magnesium levels or in the MMP-9/TIMP-1 ratios. The authors identified foci of moderate elastic fibre fragmentation in the aortic media in 5 of 10 aortic samples from the levofloxacin group, in 1 of 10 samples from the levofloxacin/magnesium group, and in none from the control group (p=0.013). Rabbits from the levofloxacin group had significantly fewer medial elastic membranes than the others (p=0.015; vs the control group: p=0.022), and their elastic membranes were thinner by an average of 1.4 μm (16%) (p=0.010, vs the control group: p=0.022, vs the levofloxacin/ magnesium group: p=0.019). The analysis of covariance confirmed the dissimilarity of the relationships between the strength of the aortic wall and the quantity of medial elastic membranes in the three study groups.Conclusions. After 14 days of treatment, levofloxacin at a dose of 150 mg/kg/day reduced the elastin content in the tunica media as well as the thickness and strength of the membrane and promoted membrane fragmentation. These changes were accompanied by a decrease in vessel strength. The addition of magnesium orotate at a dose of 140 mg/kg/day preserved the structure of the medial elastic elements and prevented the loss of the aortic wall tensile strength. The results confirm the role of magnesium deficiency in the development of fluoroquinolone-induced aortic injury. |
| first_indexed | 2024-04-24T13:54:42Z |
| format | Article |
| id | doaj.art-7519658e703d41fda6e8fe1a66ab42da |
| institution | Directory Open Access Journal |
| issn | 2312-7821 2619-1164 |
| language | Russian |
| last_indexed | 2024-04-24T13:54:42Z |
| publishDate | 2022-03-01 |
| publisher | Ministry of Health of the Russian Federation, Federal State Budgetary Institution «Scientific Centre for Expert Evaluation of Medicinal Products» |
| record_format | Article |
| series | Безопасность и риск фармакотерапии |
| spelling | doaj.art-7519658e703d41fda6e8fe1a66ab42da2024-04-03T17:56:38ZrusMinistry of Health of the Russian Federation, Federal State Budgetary Institution «Scientific Centre for Expert Evaluation of Medicinal Products»Безопасность и риск фармакотерапии2312-78212619-11642022-03-010010.30895/2312-7821-2024-393329Magnesium Orotate Influence on Thoracic Aorta in Laboratory Rabbits Receiving LevofloxacinN. V. Izmozherova0D. V. Zaytsev1V. V. Bazarny2V. M. Bakhtin3L. G. Polushina4M. A. Kopenkin5D. V. Tolstykh6E. A. Mukhlynina7Ural State Medical University; Institute of High Temperature Electrochemistry of the Ural Branch of the Russian Academy of SciencesUral State Mining UniversityUral State Medical UniversityUral State Medical University; Institute of High Temperature Electrochemistry of the Ural Branch of the Russian Academy of SciencesUral State Medical UniversityUral State Medical UniversityUral State Medical UniversityInstitute of Immunology and Physiology of the Ural Branch of the Russian Academy of SciencesScientific relevance. Fluoroquinolones are antibacterial agents associated with adverse drug reactions (ARDs), including aortic lesions; this ARD risk limits the use of fluoroquinolones. Moreover, fluoroquinolones have been reported to induce lesions in other connective tissues (cartilage, tendons), associated with magnesium deficiency.Aim. The study aimed to analyse the effects of magnesium orotate on the thoracic aorta in laboratory rabbits treated with levofloxacin.Materials and methods. The study randomised laboratory rabbits into 3 groups of 10 animals each to receive oral doses of either the carrier solution (control group), or 150 mg/kg/day levofloxacin (levofloxacin group), or 150 mg/ kg/day levofloxacin and 140 mg/kg/day magnesium orotate (levofloxacin/magnesium group). After 14 days of treatment, venous blood samples were taken to determine the serum levels of magnesium, matrix metalloproteinase-9 (MMP-9), and tissue inhibitor of matrix metalloproteinase-1 (TIMP-1), as well as MMP-9 to TIMP-1 ratios. The authors conducted morphological and mechanical characterisation of thoracic aorta samples; the mechanical characterisation involved uniaxial tensile testing. Data are presented as the mean and standard deviation values.Results. The study did not detect any changes in the serum MMP-9, TIMP-1, and magnesium levels or in the MMP-9/TIMP-1 ratios. The authors identified foci of moderate elastic fibre fragmentation in the aortic media in 5 of 10 aortic samples from the levofloxacin group, in 1 of 10 samples from the levofloxacin/magnesium group, and in none from the control group (p=0.013). Rabbits from the levofloxacin group had significantly fewer medial elastic membranes than the others (p=0.015; vs the control group: p=0.022), and their elastic membranes were thinner by an average of 1.4 μm (16%) (p=0.010, vs the control group: p=0.022, vs the levofloxacin/ magnesium group: p=0.019). The analysis of covariance confirmed the dissimilarity of the relationships between the strength of the aortic wall and the quantity of medial elastic membranes in the three study groups.Conclusions. After 14 days of treatment, levofloxacin at a dose of 150 mg/kg/day reduced the elastin content in the tunica media as well as the thickness and strength of the membrane and promoted membrane fragmentation. These changes were accompanied by a decrease in vessel strength. The addition of magnesium orotate at a dose of 140 mg/kg/day preserved the structure of the medial elastic elements and prevented the loss of the aortic wall tensile strength. The results confirm the role of magnesium deficiency in the development of fluoroquinolone-induced aortic injury.https://www.risksafety.ru/jour/article/view/393fluoroquinoloneslevofloxacinmagnesiummagnesium orotateaortamatrix metalloproteinasetissue inhibitor of matrix metalloproteinaserabbitstensile testnon-clinical study |
| spellingShingle | N. V. Izmozherova D. V. Zaytsev V. V. Bazarny V. M. Bakhtin L. G. Polushina M. A. Kopenkin D. V. Tolstykh E. A. Mukhlynina Magnesium Orotate Influence on Thoracic Aorta in Laboratory Rabbits Receiving Levofloxacin Безопасность и риск фармакотерапии fluoroquinolones levofloxacin magnesium magnesium orotate aorta matrix metalloproteinase tissue inhibitor of matrix metalloproteinase rabbits tensile test non-clinical study |
| title | Magnesium Orotate Influence on Thoracic Aorta in Laboratory Rabbits Receiving Levofloxacin |
| title_full | Magnesium Orotate Influence on Thoracic Aorta in Laboratory Rabbits Receiving Levofloxacin |
| title_fullStr | Magnesium Orotate Influence on Thoracic Aorta in Laboratory Rabbits Receiving Levofloxacin |
| title_full_unstemmed | Magnesium Orotate Influence on Thoracic Aorta in Laboratory Rabbits Receiving Levofloxacin |
| title_short | Magnesium Orotate Influence on Thoracic Aorta in Laboratory Rabbits Receiving Levofloxacin |
| title_sort | magnesium orotate influence on thoracic aorta in laboratory rabbits receiving levofloxacin |
| topic | fluoroquinolones levofloxacin magnesium magnesium orotate aorta matrix metalloproteinase tissue inhibitor of matrix metalloproteinase rabbits tensile test non-clinical study |
| url | https://www.risksafety.ru/jour/article/view/393 |
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