I I Agapov, E I Podbolotova, L A Kirsanova, N V Grudinin, A R Pashutin, O I Agapova, A E Efimov, A V Lyundup, S V Gautier
{"title":"In Vitro and In Vivo Biodegradation of Silk Fabric Scaffolds.","authors":"I I Agapov, E I Podbolotova, L A Kirsanova, N V Grudinin, A R Pashutin, O I Agapova, A E Efimov, A V Lyundup, S V Gautier","doi":"10.1134/S0012496624600519","DOIUrl":"10.1134/S0012496624600519","url":null,"abstract":"<p><p>Biodegradation of natural silk scaffolds made from gauze and satin fabrics was studied both in vitro and in vivo. Experiments were conducted using phosphate-buffered saline (PBS) and Fenton's reagent to model degradation. Samples demonstrated high stability in the model of physiological conditions and varying degradation rates in oxidative stress. In vivo studies in rats showed good biocompatibility of the scaffolds and a gradual reduction in inflammatory responses. The findings highlight the potential of silk scaffolds for use in various areas of regenerative medicine.</p>","PeriodicalId":11351,"journal":{"name":"Doklady Biological Sciences","volume":" ","pages":"34-37"},"PeriodicalIF":0.0,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143078921","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Y M Khodarovich, Maha A Elshazly, W S Shell, S A Nassif, D A Devrishov, S A Magomedova, S N Marzanova, S M Deyev
{"title":"Development and Efficacy Evaluation of Multivalent DNA Vaccine against Brucellosis.","authors":"Y M Khodarovich, Maha A Elshazly, W S Shell, S A Nassif, D A Devrishov, S A Magomedova, S N Marzanova, S M Deyev","doi":"10.1134/S0012496624600544","DOIUrl":"10.1134/S0012496624600544","url":null,"abstract":"<p><p>Attenuated live Brucella strains are currently used in vaccines against brucellosis, causing serious side effects in animals and being hardly suitable for human vaccination. To develop a safer vaccine against brucellosis, plasmid DNA was constructed to express six Brucella proteins in mammalian cells. Linear polyethylenimine was used to increase the efficiency of DNA delivery into cells. Data on optimization of the conditions for the formation of DNA-polyethylenimine complexes were described. A single intramuscular or subcutaneous injection of plasmid DNA complexes with polyethylenimine at a low dose (20 μg/mouse) was shown to exert a reliable protective effect against subsequent challenge with a test Brucella strain.</p>","PeriodicalId":11351,"journal":{"name":"Doklady Biological Sciences","volume":" ","pages":"22-27"},"PeriodicalIF":0.0,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143078915","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Pedicellate Teeth in Archaic Salamanders (Lissamphibia, Caudata).","authors":"P P Skutschas, V V Kolchanov, E V Syromyatnikova","doi":"10.1134/S0012496624600532","DOIUrl":"10.1134/S0012496624600532","url":null,"abstract":"<p><p>The presence of pedicellate (subpedicellate) teeth with two calcification centers and a weakly mineralized dividing zone is described for archaic stem salamanders (Middle Jurassic-Early Cretaceous representatives of Karauridae). The presence of subpedicellate teeth, typical of the late larval stage of modern salamanders, confirms the neotenic nature of stem salamanders. The presence of pedicellate teeth in stem salamanders and stem caecilians confirms the hypothesis of pedicellarity as a synapomorphy of modern amphibian groups and, accordingly, the monophyly of Lissamphibia.</p>","PeriodicalId":11351,"journal":{"name":"Doklady Biological Sciences","volume":" ","pages":"28-33"},"PeriodicalIF":0.0,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143078925","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
V I Silaev, I V Smoleva, V N Filippov, S N Shanina, A F Khazov, B A Makeev, D V Kiseleva, A K Fokina, J van der Plicht
{"title":"Pleistocene Walrus on the Pechora River: Mineralogical and Geochemical Data and Paleoecological Reconstructions.","authors":"V I Silaev, I V Smoleva, V N Filippov, S N Shanina, A F Khazov, B A Makeev, D V Kiseleva, A K Fokina, J van der Plicht","doi":"10.1134/S001249662470131X","DOIUrl":"10.1134/S001249662470131X","url":null,"abstract":"<p><p>Fragments of the left tusk were studied in a Pleistocene walrus whose fossil remains were found on the bank of the Pechora River in 2009. The analyses covered granulometric, chemical, and normative-mineral composition of grounds surrounding the bones; thermal properties and chemical and trace element compositions of the tusk; X-ray diffraction parameters and chemical composition of bone bioapatite; macrostructure and elemental and amino acid compositions of bone organic matter; carbon and oxygen isotopic compositions of bioapatite; and carbon and nitrogen isotope compositions of bone collagen. Bioapatite showed moderately isotopically light carbon, which is characteristic of extracave fossil bones of Pleistocene animals, and isotopically heavy oxygen, which is typical of seawater bicarbonate. The isotopic data obtained for the organic matter of the Pechora walrus correlated with similar characteristics of marine animals, but suggest a fish diet rather than a mollusk diet, which is typical of modern walruses. The finding indicates that the habitat and diet of the Pechora walrus were unusual for marine predators.</p>","PeriodicalId":11351,"journal":{"name":"Doklady Biological Sciences","volume":" ","pages":"49-59"},"PeriodicalIF":0.0,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143078839","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
E A Bogomolova, M M Murashko, E M Stasevich, A N Uvarova, E A Zheremyan, K V Korneev, D V Kuprash, D E Demin
{"title":"Thioridazine Induces Increase in Expression of the Pyruvate Transporter MPC1 Associated with Immune Infiltration in Malignant Tumors.","authors":"E A Bogomolova, M M Murashko, E M Stasevich, A N Uvarova, E A Zheremyan, K V Korneev, D V Kuprash, D E Demin","doi":"10.1134/S001249662460060X","DOIUrl":"10.1134/S001249662460060X","url":null,"abstract":"<p><p>The MPC1 gene is involved in the transport of pyruvate into mitochondria, playing an important role in metabolic processes. Recently, it has been reported that higher MPC1 expression correlates with an increased number of immune cells in human cervical and lung cancers, indicating an enhanced antitumor immune response. Reduced MPC1 levels in gastric tumors are associated with a more severe disease course. Correlational analysis of the MPC1 gene in human lung, hippocampus and frontal cortex tissue samples based on data from the GTEx database revealed associations of this gene with schizophrenia, non-small cell lung cancer, and immune diseases. Our experiments showed that the mRNA level of the MPC1 gene in the non-small cell lung cancer cell line A549 increases 5-fold under the influence of the schizophrenia neuroleptic thioridazine. The observed elevation of MPC1 level may cause tumor infiltration by immune cells, complementing the previously reported data indicating the ability of thioridazine to slow cell growth, induce apoptosis and reduce the ability of cells to migrate.</p>","PeriodicalId":11351,"journal":{"name":"Doklady Biological Sciences","volume":" ","pages":"64-68"},"PeriodicalIF":0.0,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12050224/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143370728","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A V Bervinova, V A Palikov, N A Borozdina, I N Kravchenko, I A Pakhomova, R A Dalevich, S Z Hajiguliyeva, E V Arshintseva, S Yu Pushkin, I A Dyachenko, A N Murashev
{"title":"Efficacy of Poloxamer 188 in Carboplatin-Induced Aplastic Anemia Model in CBA Mice.","authors":"A V Bervinova, V A Palikov, N A Borozdina, I N Kravchenko, I A Pakhomova, R A Dalevich, S Z Hajiguliyeva, E V Arshintseva, S Yu Pushkin, I A Dyachenko, A N Murashev","doi":"10.1134/S0012496624600428","DOIUrl":"10.1134/S0012496624600428","url":null,"abstract":"<p><p>Poloxamer 188 (P188) was tested for effect on medullary hematopoiesis in aplastic anemia. P188 was administered to CBA mice with developing anemia via oral gavage at doses of 10, 100, and 500 mg/kg. A dose-dependent effect was observed, including an increase in erythrocyte count, hemoglobin, and reticulocyte count. The parameters remained low and suggested mild anemia on day 21 in a group treated with carboplatin. P188 was assumed to exert a beneficial effect on the blood cell composition, which is distorted by cytostatic drugs.</p>","PeriodicalId":11351,"journal":{"name":"Doklady Biological Sciences","volume":" ","pages":"17-21"},"PeriodicalIF":0.0,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143022673","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
S A Murzina, V P Voronin, D G Bityutskii, N N Nemova
{"title":"Fatty Acid Content and Lipid Nutritional Indexes in the Antarctic Krill Euphausia superba Collected from Three Regions of the Atlantic Sector of Antarctica.","authors":"S A Murzina, V P Voronin, D G Bityutskii, N N Nemova","doi":"10.1134/S0012496624600386","DOIUrl":"10.1134/S0012496624600386","url":null,"abstract":"<p><p>The total lipid (TL) and fatty acid (FA) contents in tissues and body segments were studied in adult Antarctic krill (Euphausia superba) caught in three regions of the Atlantic sector of Antarctica with different environmental conditions. Significant differences in lipid and FA status of the Antarctic krill tissues and body segments were observed in the regions. Main metabolic indices indicating quality of lipids showed that E. superba has a high nutritional value. In particular, lipids are highly unsaturated in the species and ratios of physiologically significant and essential FAs are favorable to human health. This was assumed to be a distinctive biochemical characteristic of the species. Data from the study can be used to form a scientifically based approach to further technological processing of raw krill and targeted extraction of certain substances and components of a lipid nature.</p>","PeriodicalId":11351,"journal":{"name":"Doklady Biological Sciences","volume":" ","pages":"309-317"},"PeriodicalIF":0.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142460523","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
K A Pupykina, N V Polyakova, N V Kudashkina, E V Krasyuk
{"title":"Comparative Component Composition of Flowers in Several Syringa Species (Oleaceae).","authors":"K A Pupykina, N V Polyakova, N V Kudashkina, E V Krasyuk","doi":"10.1134/S0012496624701205","DOIUrl":"10.1134/S0012496624701205","url":null,"abstract":"<p><p>Because insufficient relevant data are available, the component composition of flowers was studied comparatively in six lilac species of the genus Syringa L. (Oleaceae): S. emodi Wall., S. josikaea Jacg., S. komarowii Schneid., S. reticulata (Blume) H. Hara ssp. amurensis (Rupr.) P. S. Green et M. C. Chang, S. sweginzowii Koehne et Lingelsh, and S. vulgaris L. Plants were from the collection of the South Ural Botanical Garden-Institute. Contents were established for major groups of biologically active substances (BASs): flavonoids, hydroxycinnamic acids, tannins, and organic acids. The highest contents of all BAS groups were observed in S. komarowii flowers: flavonoids, 4.25 ± 0.21%; hydroxycinnamic acids, 6.13 ± 0.29%; tannins, 9.3 ± 0.5%; ascorbic acid, 0.468 ± 0.022%; and organic acids, 10.7 ± 0.5%. The contents were somewhat lower in S. emodi and S. sweginzowii and minimum in S. josikaea. Comparisons of the qualitative and quantitative BAS profiles showed that certain Syringa species cultivated in the Republic of Bashkortostan are promising to further study in terms of their possible use in scientific medicine and the development of herbal remedies.</p>","PeriodicalId":11351,"journal":{"name":"Doklady Biological Sciences","volume":" ","pages":"325-331"},"PeriodicalIF":0.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142282041","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
D A Shabunin, E Yu Varentsova, B G Popovichev, A V Selikhovkin
{"title":"New Data on Fungal Species Composition in Spruce Trunk Canker.","authors":"D A Shabunin, E Yu Varentsova, B G Popovichev, A V Selikhovkin","doi":"10.1134/S0012496624701229","DOIUrl":"10.1134/S0012496624701229","url":null,"abstract":"<p><p>The composition of canker mycobiota on spruce trunks was studied in the Lisinsky forestry (Leningrad Oblast). Small cankers or canker parts were placed in a humid chamber. Fungi were identified by morphological features. Sorocybe resinae (Fr.) Fr. and Penicillium glaucoalbidum (Desm.) Houbraken & Samson were the most common. The S. resinae occurrence was 75.9 ± 7.9%. The fungus developed in the surface layers of dried resin, but was not detected in the absence of resin production. The fungus S. resinae was therefore assumed to be a nearly ubiquitous component of the mycobiota of resinous cankers on spruce trunks in Leningrad Oblast. The fungus P. glaucoalbidum has only been observed as a saprotroph in Russia earlier. Weak pathogenic properties were detected in the species in experiments; i.e., P. glaucoalbidum grew on live bark tissues in a humid chamber. Based on its high occurrence (41.4 ± 9.1%), P. glaucoalbidum was identified as a regular component of the microbiota in spruce necrotic canker. Pure cultures of P. glaucoalbidum and Oidiodendron sp. were obtained. To test the respective species as possible causative agents of trunk canker, trunks of 20 spruce trees were inoculated with the fungal cultures in a forest stand. The cultures stimulated resin secretion without causing necrosis to spread beyond the inflicted wound. To better understand the phenomenon, a more detailed study of the biota in necrotic cankers is necessary to perform with a special focus on their nonpathogenic part, which has not received proper attention as of yet.</p>","PeriodicalId":11351,"journal":{"name":"Doklady Biological Sciences","volume":" ","pages":"350-355"},"PeriodicalIF":0.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142282044","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
V I Silaev, A S Shuyskiy, I V Smoleva, S N Shanina, E A Vasiliev, D V Kiseleva, A F Khazov, B A Makeev, A E Sukharev, A K Fokina
{"title":"Pre-Holocene Taymyr Mammoth Petya: Mineralogical, Isotope, and Geochemical Properties of Bones, Soft Tissues, Skin, and Hair and Paleoecological Reconstructions.","authors":"V I Silaev, A S Shuyskiy, I V Smoleva, S N Shanina, E A Vasiliev, D V Kiseleva, A F Khazov, B A Makeev, A E Sukharev, A K Fokina","doi":"10.1134/S0012496624701217","DOIUrl":"10.1134/S0012496624701217","url":null,"abstract":"<p><p>New remains of a Taymyr mammoth, including bones, bone collagen, hairs, skin, and soft (muscle and fat) tissues were studied comprehensively by mineralogical, spectroscopic, chromatographic, and isotope-geochemical methods. The results were used to infer the mammoth's biological age and diet, paleoclimatic conditions, and the mechanisms and degree of fossilization of the remains.</p>","PeriodicalId":11351,"journal":{"name":"Doklady Biological Sciences","volume":" ","pages":"332-349"},"PeriodicalIF":0.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142282045","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}