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Myasoedova YV, Garifullina LR, Belyaeva ER, Ishmuratov GY. Ozonolytic transformations of (
R
)‐(−)‐carvon in the presence of pyridine. J CHIN CHEM SOC-TAIP 2022. [DOI: 10.1002/jccs.202200035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Yuliya V. Myasoedova
- Ufa Institute of Chemistry, Ufa Federal Research Center Russian Academy of Sciences Ufa Russia
| | - Liliya R. Garifullina
- Ufa Institute of Chemistry, Ufa Federal Research Center Russian Academy of Sciences Ufa Russia
| | - Evelina R. Belyaeva
- Ufa Institute of Chemistry, Ufa Federal Research Center Russian Academy of Sciences Ufa Russia
| | - Gumer Yu Ishmuratov
- Ufa Institute of Chemistry, Ufa Federal Research Center Russian Academy of Sciences Ufa Russia
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Dubinin MV, Semenova AA, Ilzorkina AI, Mikheeva IB, Yashin VA, Penkov NV, Vydrina VA, Ishmuratov GY, Sharapov VA, Khoroshavina EI, Gudkov SV, Belosludtsev KN. Effect of betulin and betulonic acid on isolated rat liver mitochondria and liposomes. Biochim Biophys Acta Biomembr 2020; 1862:183383. [PMID: 32522531 DOI: 10.1016/j.bbamem.2020.183383] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2020] [Revised: 06/02/2020] [Accepted: 06/03/2020] [Indexed: 01/01/2023]
Abstract
The paper considers the effects of plant triterpenoid betulin and its derivative betulonic acid on rat liver mitochondria and liposomes. It was found that betulonic acid and, to a lesser extent, betulin, activate mitochondrial respiration in states 2 and 4 and inhibit ADP- and DNP-stimulated (uncoupled) respiration. The effect of betulonic acid resulted in a significant decrease of the respiratory control and ADP/O ratios and decrease in Δψ. The effects of both compounds were most pronounced in the case of succinate-fueled mitochondrial respiration. This may include both the possible protonophore effect of betulonic acid and the inhibition of respiratory chain complexes by both compounds. Both agents enhanced H2O2 production in succinate-fueled mitochondria, while betulonic acid exerted an antioxidant effect with NAD-dependent substrates. Betulin was found to induce mitochondrial aggregation, but had no effect on membrane permeability. A similar pattern was found on liposomes. As revealed by the laurdan generalized polarization (GP) technique, betulin increased laurdan GP in lecithin liposomes, indicating a decrease in membrane fluidity. Measurements of GP as a function of fluorescence excitation wavelength gave an ascending line for high concentrations of betulin, which can be interpreted as phase heterogeneity of the lipid/betulin system. High concentrations of betulin (> 60 mol%) was also demonstrated to cause permeabilization of lecithin liposomes. Betulonic acid was much less effective in inducing the aggregation of mitochondria and liposomes and had no effect on membrane permeability. The possible mechanisms of betulin and betulonic acid effect on rat liver mitochondria and liposomes are discussed.
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Affiliation(s)
- Mikhail V Dubinin
- Mari State University, pl. Lenina 1, Yoshkar-Ola, Mari El, 424001, Russia.
| | - Alena A Semenova
- Mari State University, pl. Lenina 1, Yoshkar-Ola, Mari El, 424001, Russia
| | - Anna I Ilzorkina
- Mari State University, pl. Lenina 1, Yoshkar-Ola, Mari El, 424001, Russia
| | - Irina B Mikheeva
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, Institutskaya 3, Pushchino, Moscow Region, 142290, Russia
| | - Valery A Yashin
- Institute of Cell Biophysics, Russian Academy of Sciences, PSCBR RAS, Institutskaya 3, Pushchino, Moscow Region, 142290, Russia
| | - Nikita V Penkov
- Institute of Cell Biophysics, Russian Academy of Sciences, PSCBR RAS, Institutskaya 3, Pushchino, Moscow Region, 142290, Russia
| | - Valentina A Vydrina
- Ufa Institute of Chemistry, Ufa Federal Research Centre of the Russian Academy of Sciences, Prosp. Oktyabrya 71, Ufa, Republic of Bashkortostan, 450054, Russia
| | - Gumer Yu Ishmuratov
- Ufa Institute of Chemistry, Ufa Federal Research Centre of the Russian Academy of Sciences, Prosp. Oktyabrya 71, Ufa, Republic of Bashkortostan, 450054, Russia
| | | | | | - Sergey V Gudkov
- Prokhorov General Physics Institute of the Russian Academy of Sciences, Vavilova 38, Moscow, 119991, Russia
| | - Konstantin N Belosludtsev
- Mari State University, pl. Lenina 1, Yoshkar-Ola, Mari El, 424001, Russia; Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, Institutskaya 3, Pushchino, Moscow Region, 142290, Russia
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Yamansarov EY, Kazakov DV, Medvedeva NI, Khusnutdinova EF, Kazakova OB, Legostaeva YV, Ishmuratov GY, Huong LM, Ha TTH, Huong DT, Suponitsky KY. Synthesis and antimalarial activity of 3'-trifluoromethylated 1,2,4-trioxolanes and 1,2,4,5-tetraoxane based on deoxycholic acid. Steroids 2018; 129:17-23. [PMID: 29180289 DOI: 10.1016/j.steroids.2017.11.008] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/08/2017] [Revised: 11/09/2017] [Accepted: 11/15/2017] [Indexed: 10/18/2022]
Abstract
A series of new steroidal peroxides - 3'-trifluoromethylated 1,2,4-trioxolanes and 1,2,4,5-tetraoxanes based on deoxycholic acid were prepared via the reactions of the Griesbaum coozonolysis and peroxycondensation, respectively. 1,2,4-Trioxolanes were synthesized by the interaction of methyl O-methyl-3-oximino-12α-acetoxy-deoxycholate with CF3C(O)CH3 or CF3C(O)Ph and O3 as the mixtures of four possible stereoisomers at ratios of 1:2:2:1 and in yields of 50% and 38%, respectively. The major diastereomer of methyl 12α-acetoxy-5β-cholan-24-oate-3-spiro-5'-(3'-methyl-3'-trifluoromethyl-1',2',4'-trioxolane) was isolated via crystallization of a mixture of stereoisomers from hexane and its (3S,3'R)-configuration was determined using X-ray crystallographic analysis. Peroxycondensation of methyl 3-bishydroperoxy-12α-acetoxy-deoxycholate with CF3C(O)CH3 or acetone led to 1,2,4,5-tetraoxanes in yields of 44% and 37%, respectively. Antimalarial activity of these new steroidal peroxides was evaluated in vitro against the chloroquine-sensitive (CQS) T96 and chloroquine-resistant (CQR) K1 strains of Plasmodium falciparum. Deoxycholic acid 3'-trifluoromethylated 1,2,4,5-tetraoxane demonstrated a good IC50 value against CQR-strain (IC50 (K1) = 7.6 nM) of P. falciparum. Tetraoxane with the acetone subunit demonstrated the best results among all tested peroxides with an IC50 value of 3 nM against the CQ-resistant K1 strain. In general, 1,2,4-trioxolanes of deoxycholic acid are less active than 1,2,4,5-tetraoxanes.
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Affiliation(s)
- Emil Yu Yamansarov
- Ufa Institute of Chemistry of the Russian Academy of Sciences, 71 prospect Oktyabrya, 450054 Ufa, Russian Federation
| | - Dmitri V Kazakov
- Ufa Institute of Chemistry of the Russian Academy of Sciences, 71 prospect Oktyabrya, 450054 Ufa, Russian Federation; Noncommercial Partnership "Center for Diagnostic of Nanostructures and Nanomaterials", 4 ul. Kosygina, 119991 Moscow, Russian Federation
| | - Natal'ya I Medvedeva
- Ufa Institute of Chemistry of the Russian Academy of Sciences, 71 prospect Oktyabrya, 450054 Ufa, Russian Federation
| | - Elmira F Khusnutdinova
- Ufa Institute of Chemistry of the Russian Academy of Sciences, 71 prospect Oktyabrya, 450054 Ufa, Russian Federation
| | - Oxana B Kazakova
- Ufa Institute of Chemistry of the Russian Academy of Sciences, 71 prospect Oktyabrya, 450054 Ufa, Russian Federation.
| | - Yuliya V Legostaeva
- Ufa Institute of Chemistry of the Russian Academy of Sciences, 71 prospect Oktyabrya, 450054 Ufa, Russian Federation
| | - Gumer Yu Ishmuratov
- Ufa Institute of Chemistry of the Russian Academy of Sciences, 71 prospect Oktyabrya, 450054 Ufa, Russian Federation
| | - Le Mai Huong
- Institute of Natural Products Chemistry, Vietnamese Academy of Science and Technology, 18 Hoang Quoc Viet Street, Cau Giay Dist., Hanoi, Viet Nam
| | - Tran Thi Hong Ha
- Institute of Natural Products Chemistry, Vietnamese Academy of Science and Technology, 18 Hoang Quoc Viet Street, Cau Giay Dist., Hanoi, Viet Nam
| | - Do Thi Huong
- Institute of Natural Products Chemistry, Vietnamese Academy of Science and Technology, 18 Hoang Quoc Viet Street, Cau Giay Dist., Hanoi, Viet Nam
| | - Kyrill Yu Suponitsky
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 ul. Vavilova, 119991 Moscow, Russian Federation
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