1
|
Sarnatskaya V, Mikhailenko V, Prokopenko I, Gerashchenko BI, Shevchuk O, Yushko L, Glavin A, Makovetska L, Sakhno L, Sydorenko O, Kozynchenko O, Nikolaev V. The effect of two formulations of carbon enterosorbents on oxidative stress indexes and molecular conformation of serum albumin in experimental animals exposed to CCl 4. Heliyon 2020; 6:e03126. [PMID: 32042939 PMCID: PMC7002792 DOI: 10.1016/j.heliyon.2019.e03126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Revised: 10/18/2019] [Accepted: 12/23/2019] [Indexed: 10/31/2022] Open
Abstract
The liver failure means inability to perform its normal synthetic, biotransformation and excretory functions. The disturbance of metabolic processes leads to the development of "metabolic endogenous intoxication" resulting in oxidative stress. Oxidative stress initiates the processes of oxidation of amino acid residues of blood plasma proteins causing the changes in their structure and functions. The effect of administration of highly activated porous carbonic enterosorbents on oxidative stress manifestations and molecular conformation of serum albumin in blood of experimental animals with acute liver failure induced by carbon tetrachloride (CCl4) needs to be investigated. Two forms of activated carbonic enterosorbents such as AC1 (primary beads with the range of diameters of 125-250 μm) and AC2 (secondary granules prepared from micronized AC1 having the mean particle size of ~1 μm) derived from phenol-formaldehyde resin were used in rat model with CCl4 intoxication. The total level of reactive oxygen species (ROS) in blood plasma, the activity of catalase (CAT) in blood hemolysates; the content of reduced glutathione (GSH) in liver homogenates, and the level of oxidative modification of proteins (OMP) such as aldehyde-dinitrophenylhydrazone (A-DNPH) and ketone-dinitrophenylhydrazone (K-DNPH) derivatives in blood plasma and liver homogenates were determined. In addition, the level of pro/antioxidant ratio in blood hemolysates and the content of lipid peroxidation product - malondialdehyde (MDA), in blood plasma and liver were determined. Melting thermograms of blood plasma proteins (BPP) and molecular conformation changes of serum albumin were analyzed by biophysical methods (differential scanning microcalorimetry and spectrofluorimetry). The extent of CCl4-induced oxidative damage in blood and liver of experimental animals was shown to be less expressed for AC1 in comparison with AC2 enterosorbent. However, AC2 used in the form of secondary granules positively influenced some biophysical properties of albumin molecule (temperature of melting, shape of melting endotherm and intrinsic fluorescence) after rats exposure to CCl4. In general, administration of both AC1 and AC2 led to the reduction of oxidative stress manifestations and partial restoration of native molecular conformation of serum albumin. These observations are promising in terms of achieving recovery of detoxification potential of organism after severe liver injury.
Collapse
Affiliation(s)
- Veronika Sarnatskaya
- R.E. Kavetsky Institute of Experimental Pathology, Oncology and Radiobiology (IEPOR), NAS of Ukraine, Kyiv, Ukraine
| | - Victor Mikhailenko
- R.E. Kavetsky Institute of Experimental Pathology, Oncology and Radiobiology (IEPOR), NAS of Ukraine, Kyiv, Ukraine
| | - Igor Prokopenko
- R.E. Kavetsky Institute of Experimental Pathology, Oncology and Radiobiology (IEPOR), NAS of Ukraine, Kyiv, Ukraine
| | - Bogdan I. Gerashchenko
- R.E. Kavetsky Institute of Experimental Pathology, Oncology and Radiobiology (IEPOR), NAS of Ukraine, Kyiv, Ukraine
| | - Oksana Shevchuk
- I. Horbachevsky Ternopil State Medical University, Ternopil, Ukraine
| | - Larysa Yushko
- R.E. Kavetsky Institute of Experimental Pathology, Oncology and Radiobiology (IEPOR), NAS of Ukraine, Kyiv, Ukraine
| | - Alexei Glavin
- R.E. Kavetsky Institute of Experimental Pathology, Oncology and Radiobiology (IEPOR), NAS of Ukraine, Kyiv, Ukraine
| | - Lyudmila Makovetska
- R.E. Kavetsky Institute of Experimental Pathology, Oncology and Radiobiology (IEPOR), NAS of Ukraine, Kyiv, Ukraine
| | - Larysa Sakhno
- R.E. Kavetsky Institute of Experimental Pathology, Oncology and Radiobiology (IEPOR), NAS of Ukraine, Kyiv, Ukraine
| | - Oleksii Sydorenko
- R.E. Kavetsky Institute of Experimental Pathology, Oncology and Radiobiology (IEPOR), NAS of Ukraine, Kyiv, Ukraine
| | | | - Vladimir Nikolaev
- R.E. Kavetsky Institute of Experimental Pathology, Oncology and Radiobiology (IEPOR), NAS of Ukraine, Kyiv, Ukraine
| |
Collapse
|
2
|
Ivanov AI, Korolenko EA, Korolik EV, Firsov SP, Zhbankov RG, Marchewka MK, Ratajczak H. Chronic liver and renal diseases differently affect structure of human serum albumin. Arch Biochem Biophys 2002; 408:69-77. [PMID: 12485604 DOI: 10.1016/s0003-9861(02)00533-7] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Human serum albumin (HSA) binding with endogenous metabolites and drugs is substantially decreased in chronic renal and liver diseases. To test the hypothesis that the decreased binding ability is caused by conformational changes of the protein, we analyzed infrared and Raman spectra of HSA isolated from healthy donors and patients with chronic uremia and liver cirrhosis. Uremia did not affect the secondary structure of HSA but modified the environment of its Asp/Glu residues. Liver cirrhosis increased the amount of extended and beta-structures, modified the environment of Asp/Glu and Tyr side chains, and changed the configuration of disulfide bridges in albumin molecules. The conformational changes of "cirrhotic" albumin were not caused by reversibly bound ligands and resembled a partial unfolding of the protein induced by adsorption on the charcoal surface. The dramatic structural alterations of HSA in liver cirrhosis may be caused by its oxidative modification and might underlie the decreased binding ability and changed body distribution of albumin.
Collapse
Affiliation(s)
- Andrei I Ivanov
- Department of Pathology and Laboratory Medicine, Emory University, Whitehead Medical Building, Room 123, 615 Michael Street, Atlanta, GA 30322, USA.
| | | | | | | | | | | | | |
Collapse
|
3
|
Sarnatskaya VV, Lindup WE, Niwa T, Ivanov AI, Yushko LA, Tjia J, Maslenny VN, Korneeva LN, Nikolaev VG. Effect of protein-bound uraemic toxins on the thermodynamic characteristics of human albumin. Biochem Pharmacol 2002; 63:1287-96. [PMID: 11960605 DOI: 10.1016/s0006-2952(02)00869-9] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The ability of albumin to bind drugs and other lipophilic organic acids is decreased in chronic renal failure by the accumulation of albumin-bound uraemic toxins such as hippuric acid, indoxyl sulphate and 3-carboxy-4-methyl-5-propyl-2-furanpropanoic acid (CMPF). This furan acid is the most highly bound and is not removed by haemodialysis. The inhibitory effects of these three uraemic toxins on the interaction of three marker ligands sodium octanoate (for medium chain fatty acids), salicylic acid and phenol red (bilirubin site/site I) with albumin have been investigated by differential scanning microcalorimetry and flow microcalorimetry. CMPF was the most potent inhibitor and its binding site coincided with that of bilirubin (site I). Indoxyl sulphate binds to the site for medium-chain fatty acids and tryptophan (site II) and hippuric acid, the weakest inhibitor, inhibited binding to the salicylic acid site.
Collapse
Affiliation(s)
- Veronika V Sarnatskaya
- Section of Artificial Organs, Kavetsky Institute of Experimental Pathology, Oncology and Radiobiology, The National Academy of Sciences, 45 Vasilkovskaya Street, Kiev 03022, Ukraine
| | | | | | | | | | | | | | | | | |
Collapse
|