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Karachanak-Yankova S, Serbezov D, Mihaylova M, Nikolova D, Balabanski L, Damyanova V, Antonova O, Staneva R, Ganev M, Spasova V, Rukova B, Nesheva D, Josifovska S, Stancheva M, Belejanska D, Petrova M, Mehrabian S, Traykov L, Hadjidekova S, Toncheva D. Detection of pathogenic variants in Alzheimer’s disease related genes in Bulgarian patients by pooled whole-exome sequencing. BIOTECHNOL BIOTEC EQ 2023. [DOI: 10.1080/13102818.2022.2155572] [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: 01/11/2023] Open
Affiliation(s)
- Sena Karachanak-Yankova
- Department of Medical Genetics, Faculty of Medicine, Medical University of Sofia, Sofia, Bulgaria
- Department of Genetics, Faculty of Biology, Sofia University ‘St. Kliment Ohridski’, Sofia, Bulgaria
| | - Dimitar Serbezov
- Department of Medical Genetics, Faculty of Medicine, Medical University of Sofia, Sofia, Bulgaria
| | - Marta Mihaylova
- Department of Medical Genetics, Faculty of Medicine, Medical University of Sofia, Sofia, Bulgaria
| | - Dragomira Nikolova
- Department of Medical Genetics, Faculty of Medicine, Medical University of Sofia, Sofia, Bulgaria
| | | | - Vera Damyanova
- Department of Medical Genetics, Faculty of Medicine, Medical University of Sofia, Sofia, Bulgaria
| | - Olga Antonova
- Department of Medical Genetics, Faculty of Medicine, Medical University of Sofia, Sofia, Bulgaria
| | - Rada Staneva
- Department of Medical Genetics, Faculty of Medicine, Medical University of Sofia, Sofia, Bulgaria
| | - Mihail Ganev
- Department of Medical Genetics, Faculty of Medicine, Medical University of Sofia, Sofia, Bulgaria
| | - Victoria Spasova
- Department of Medical Genetics, Faculty of Medicine, Medical University of Sofia, Sofia, Bulgaria
| | - Blaga Rukova
- Department of Medical Genetics, Faculty of Medicine, Medical University of Sofia, Sofia, Bulgaria
| | - Desislava Nesheva
- Department of Medical Genetics, Faculty of Medicine, Medical University of Sofia, Sofia, Bulgaria
| | - Slavica Josifovska
- Department of Molecular Biology, Genetics and Microbiology, Faculty of Natural Sciences and Mathematics, ‘Ss. Cyril and Methodius’ University, Skopje, North Macedonia
| | - Mikaela Stancheva
- Department of Genetics, Faculty of Biology, Sofia University ‘St. Kliment Ohridski’, Sofia, Bulgaria
| | - Diana Belejanska
- Department of Neurology, University Hospital ‘Alexandrovska’, Sofia, Bulgaria
| | - Mariya Petrova
- Department of Neurology, University Hospital ‘Alexandrovska’, Sofia, Bulgaria
| | - Shima Mehrabian
- Department of Neurology, University Hospital ‘Alexandrovska’, Sofia, Bulgaria
| | - Latchezar Traykov
- Department of Neurology, University Hospital ‘Alexandrovska’, Sofia, Bulgaria
| | - Savina Hadjidekova
- Department of Medical Genetics, Faculty of Medicine, Medical University of Sofia, Sofia, Bulgaria
| | - Draga Toncheva
- Department of Medical Genetics, Faculty of Medicine, Medical University of Sofia, Sofia, Bulgaria
- Bulgarian Academy of Sciences, Sofia, Bulgaria
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Petrova A, Mamin G, Gnezdilov O, Fadeeva I, Antonova O, Forysenkova A, Antoniac IV, Rau JV, Gafurov M. Magnetic Resonance-Based Analytical Tools to Study Polyvinylpyrrolidone-Hydroxyapatite Composites. Polymers (Basel) 2023; 15:4445. [PMID: 38006168 PMCID: PMC10675429 DOI: 10.3390/polym15224445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Revised: 11/13/2023] [Accepted: 11/13/2023] [Indexed: 11/26/2023] Open
Abstract
The synthesis of biocompatible and bioresorbable composite materials, such as a "polymer matrix-mineral constituent," stimulating the natural growth of living tissues and the restoration of damaged parts of the body, is one of the challenging problems in regenerative medicine and materials science. Composite films of bioresorbable polymer of polyvinylpyrrolidone (PVP) and hydroxyapatite (HA) were obtained. HA was synthesized in situ in the polymer solution. We applied electron paramagnetic resonance (EPR) and nuclear magnetic resonance (NMR) approaches to study the composite films' properties. The application of EPR in two frequency ranges allowed us to derive spectroscopic parameters of the nitrogen-based light and radiation-induced paramagnetic centers in HA, PVP and PVP-HA with high accuracy. It was shown that PVP did not significantly affect the EPR spectral and relaxation parameters of the radiation-induced paramagnetic centers in HA, while light-induced centers were detected only in PVP. Magic angle spinning (MAS) 1H NMR showed the presence of two signals at 4.7 ppm and -2.15 ppm, attributed to "free" water and hydroxyl groups, while the single line was attributed to 31P. NMR relaxation measurements for 1H and 31P showed that the relaxation decays were multicomponent processes that can be described by three components of the transverse relaxation times. The obtained results demonstrated that the applied magnetic resonance methods can be used for the quality control of PVP-HA composites and, potentially, for the development of analytical tools to follow the processes of sample treatment, resorption, and degradation.
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Affiliation(s)
- Alina Petrova
- Institute of Physics, Kazan Federal University, Kremlyovskaya St.18, 420008 Kazan, Russia; (A.P.); (O.G.)
| | - Georgy Mamin
- Institute of Physics, Kazan Federal University, Kremlyovskaya St.18, 420008 Kazan, Russia; (A.P.); (O.G.)
| | - Oleg Gnezdilov
- Institute of Physics, Kazan Federal University, Kremlyovskaya St.18, 420008 Kazan, Russia; (A.P.); (O.G.)
| | - Inna Fadeeva
- A.A. Baikov Institute of Metallurgy and Material Science, Russian Academy of Sciences, Leninsky Avenue 49, 119334 Moscow, Russia; (I.F.); (A.F.)
| | - Olga Antonova
- A.A. Baikov Institute of Metallurgy and Material Science, Russian Academy of Sciences, Leninsky Avenue 49, 119334 Moscow, Russia; (I.F.); (A.F.)
| | - Anna Forysenkova
- A.A. Baikov Institute of Metallurgy and Material Science, Russian Academy of Sciences, Leninsky Avenue 49, 119334 Moscow, Russia; (I.F.); (A.F.)
| | - Iulian V. Antoniac
- Faculty of Material Science and Engineering, National University of Science and Technology Politehnica Bucharest, 313 Splaiul Independentei Street, District 6, 060042 Bucharest, Romania;
- Academy of Romanian Scientists, 54 Splaiul Independentei Street, District 5, 050094 Bucharest, Romania
| | - Julietta V. Rau
- Istituto di Struttura della Materia, Consiglio Nazionale delle Ricerche (ISM-CNR), Via del Fosso del Cavaliere, 100, 00133 Rome, Italy;
- Department of Analytical, Physical and Colloid Chemistry, I.M. Sechenov First Moscow State Medical University, Trubetskaya Str., Build. 8/2, 119048 Moscow, Russia
| | - Marat Gafurov
- Institute of Physics, Kazan Federal University, Kremlyovskaya St.18, 420008 Kazan, Russia; (A.P.); (O.G.)
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Ikonnikova A, Morozova A, Antonova O, Ochneva A, Fedoseeva E, Abramova O, Emelyanova M, Filippova M, Morozova I, Zorkina Y, Syunyakov T, Andryushchenko A, Andreuyk D, Kostyuk G, Gryadunov D. Evaluation of the Polygenic Risk Score for Alzheimer's Disease in Russian Patients with Dementia Using a Low-Density Hydrogel Oligonucleotide Microarray. Int J Mol Sci 2023; 24:14765. [PMID: 37834213 PMCID: PMC10572681 DOI: 10.3390/ijms241914765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Revised: 09/25/2023] [Accepted: 09/28/2023] [Indexed: 10/15/2023] Open
Abstract
The polygenic risk score (PRS), together with the ɛ4 allele of the APOE gene (APOE-ɛ4), has shown high potential for Alzheimer's disease (AD) risk prediction. The aim of this study was to validate the model of polygenic risk in Russian patients with dementia. A microarray-based assay was developed to identify 21 markers of polygenic risk and ɛ alleles of the APOE gene. This case-control study included 348 dementia patients and 519 cognitively normal volunteers. Cerebrospinal fluid (CSF) amyloid-β (Aβ) and tau protein levels were assessed in 57 dementia patients. PRS and APOE-ɛ4 were significant genetic risk factors for dementia. Adjusted for APOE-ɛ4, individuals with PRS corresponding to the fourth quartile had an increased risk of dementia compared to the first quartile (OR 1.85; p-value 0.002). The area under the curve (AUC) was 0.559 for the PRS model only, and the inclusion of APOE-ɛ4 improved the AUC to 0.604. PRS was positively correlated with tTau and pTau181 and inversely correlated with Aβ42/Aβ40 ratio. Carriers of APOE-ɛ4 had higher levels of tTau and pTau181 and lower levels of Aβ42 and Aβ42/Aβ40. The developed assay can be part of a strategy for assessing individuals for AD risk, with the purpose of assisting primary preventive interventions.
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Affiliation(s)
- Anna Ikonnikova
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia; (O.A.); (E.F.); (M.E.); (M.F.); (D.G.)
| | - Anna Morozova
- Mental-Health Clinic No. 1 Named after N.A. Alekseev, Zagorodnoe Highway 2, 115191 Moscow, Russia; (A.M.); (A.O.); (O.A.); (I.M.); (Y.Z.); (T.S.); (A.A.); (D.A.); (G.K.)
- Department of Basic and Applied Neurobiology, V. Serbsky Federal Medical Research Centre of Psychiatry and Narcology, Kropotkinsky per. 23, 119034 Moscow, Russia
| | - Olga Antonova
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia; (O.A.); (E.F.); (M.E.); (M.F.); (D.G.)
| | - Alexandra Ochneva
- Mental-Health Clinic No. 1 Named after N.A. Alekseev, Zagorodnoe Highway 2, 115191 Moscow, Russia; (A.M.); (A.O.); (O.A.); (I.M.); (Y.Z.); (T.S.); (A.A.); (D.A.); (G.K.)
| | - Elena Fedoseeva
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia; (O.A.); (E.F.); (M.E.); (M.F.); (D.G.)
| | - Olga Abramova
- Mental-Health Clinic No. 1 Named after N.A. Alekseev, Zagorodnoe Highway 2, 115191 Moscow, Russia; (A.M.); (A.O.); (O.A.); (I.M.); (Y.Z.); (T.S.); (A.A.); (D.A.); (G.K.)
- Department of Basic and Applied Neurobiology, V. Serbsky Federal Medical Research Centre of Psychiatry and Narcology, Kropotkinsky per. 23, 119034 Moscow, Russia
| | - Marina Emelyanova
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia; (O.A.); (E.F.); (M.E.); (M.F.); (D.G.)
| | - Marina Filippova
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia; (O.A.); (E.F.); (M.E.); (M.F.); (D.G.)
| | - Irina Morozova
- Mental-Health Clinic No. 1 Named after N.A. Alekseev, Zagorodnoe Highway 2, 115191 Moscow, Russia; (A.M.); (A.O.); (O.A.); (I.M.); (Y.Z.); (T.S.); (A.A.); (D.A.); (G.K.)
| | - Yana Zorkina
- Mental-Health Clinic No. 1 Named after N.A. Alekseev, Zagorodnoe Highway 2, 115191 Moscow, Russia; (A.M.); (A.O.); (O.A.); (I.M.); (Y.Z.); (T.S.); (A.A.); (D.A.); (G.K.)
- Department of Basic and Applied Neurobiology, V. Serbsky Federal Medical Research Centre of Psychiatry and Narcology, Kropotkinsky per. 23, 119034 Moscow, Russia
| | - Timur Syunyakov
- Mental-Health Clinic No. 1 Named after N.A. Alekseev, Zagorodnoe Highway 2, 115191 Moscow, Russia; (A.M.); (A.O.); (O.A.); (I.M.); (Y.Z.); (T.S.); (A.A.); (D.A.); (G.K.)
- International Centre for Education and Research in Neuropsychiatry (ICERN), Samara State Medical University, 443016 Samara, Russia
| | - Alisa Andryushchenko
- Mental-Health Clinic No. 1 Named after N.A. Alekseev, Zagorodnoe Highway 2, 115191 Moscow, Russia; (A.M.); (A.O.); (O.A.); (I.M.); (Y.Z.); (T.S.); (A.A.); (D.A.); (G.K.)
| | - Denis Andreuyk
- Mental-Health Clinic No. 1 Named after N.A. Alekseev, Zagorodnoe Highway 2, 115191 Moscow, Russia; (A.M.); (A.O.); (O.A.); (I.M.); (Y.Z.); (T.S.); (A.A.); (D.A.); (G.K.)
- Economy Faculty, M.V. Lomonosov Moscow State University, 119991 Moscow, Russia
| | - Georgy Kostyuk
- Mental-Health Clinic No. 1 Named after N.A. Alekseev, Zagorodnoe Highway 2, 115191 Moscow, Russia; (A.M.); (A.O.); (O.A.); (I.M.); (Y.Z.); (T.S.); (A.A.); (D.A.); (G.K.)
- Department of Psychiatry, Federal State Budgetary Educational Institution of Higher Education “Moscow State University of Food Production”, Volokolamskoye Highway 11, 125080 Moscow, Russia
| | - Dmitry Gryadunov
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia; (O.A.); (E.F.); (M.E.); (M.F.); (D.G.)
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Kulyan R, Samarina L, Shkhalakhova R, Kuleshov A, Ukhatova Y, Antonova O, Koninskaya N, Matskiv A, Malyarovskaya V, Ryndin A. InDel and SCoT Markers for Genetic Diversity Analysis in a Citrus Collection from the Western Caucasus. Int J Mol Sci 2023; 24:ijms24098276. [PMID: 37175981 PMCID: PMC10179493 DOI: 10.3390/ijms24098276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 04/30/2023] [Accepted: 05/02/2023] [Indexed: 05/15/2023] Open
Abstract
Citrus collections from extreme growing regions can be an important source of tolerant germplasms for the breeding of cold-tolerant varieties. However, the efficient utilization of these germplasms requires their genetic background information. Thus, efficient marker systems are necessary for the characterization and identification of valuable accessions. In this study, the efficiency of 36 SCoT markers and 60 InDel markers were evaluated as part of the broad citrus collection of the Western Caucasus. The interspecific and intraspecific genetic diversity and genetic structures were analyzed for 172 accessions, including 31 species and sets of the locally derived cultivars. Single markers, such as SCoT18 (0.84), SCoT20 (0.93), SCoT23 (0.87), SCoT31 (0.88), SCoT36 (0.87) и LG 1-4 (0.94), LG 4-3 (0.86), LG 7-11 (0.98), and LG 8-10 (0.83), showed a high discriminating power, indicating the good applicability of these markers to assess intraspecific diversity of the genus Citrus. Overall, SCoT markers showed a higher level of polymorphism than InDel markers. According to analysis of population structure, SCoT and InDel markers showed K = 9 and K = 5 genetic clusters, respectively. The lowest levels of genetic admixtures and diversity were observed among the locally derived satsumas and lemons. The highest level of genetic admixtures was observed in the lime group. Phylogenetic relationships indicated a high level of interspecific genetic diversity but a low level of intraspecific diversity in locally derived satsumas and lemons. The results provide new insight into the origin of citrus germplasms and their distribution in colder regions. Furthermore, they are important for implementing conservation measures, controlling genetic erosion, developing breeding strategies, and improving breeding efficiency.
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Affiliation(s)
- Raisa Kulyan
- Federal Research Centre the Subtropical Scientific Centre of the Russian Academy of Sciences, 354002 Sochi, Russia
| | - Lidiia Samarina
- Federal Research Centre the Subtropical Scientific Centre of the Russian Academy of Sciences, 354002 Sochi, Russia
- "Sirius University of Science and Technology", Olimpiyskiy Ave. b.1, 354340 Sirius, Kransnodar Region, Russia
| | - Ruset Shkhalakhova
- Federal Research Centre the Subtropical Scientific Centre of the Russian Academy of Sciences, 354002 Sochi, Russia
| | - Alexandr Kuleshov
- Federal Research Centre the Subtropical Scientific Centre of the Russian Academy of Sciences, 354002 Sochi, Russia
| | - Yulia Ukhatova
- "Sirius University of Science and Technology", Olimpiyskiy Ave. b.1, 354340 Sirius, Kransnodar Region, Russia
- Federal Research Center N. I. Vavilov All-Russian Institute of Plant Genetic Resources (VIR), 190000 Saint Petersburg, Russia
| | - Olga Antonova
- "Sirius University of Science and Technology", Olimpiyskiy Ave. b.1, 354340 Sirius, Kransnodar Region, Russia
| | - Natalia Koninskaya
- Federal Research Centre the Subtropical Scientific Centre of the Russian Academy of Sciences, 354002 Sochi, Russia
| | - Alexandra Matskiv
- Federal Research Centre the Subtropical Scientific Centre of the Russian Academy of Sciences, 354002 Sochi, Russia
| | - Valentina Malyarovskaya
- Federal Research Centre the Subtropical Scientific Centre of the Russian Academy of Sciences, 354002 Sochi, Russia
| | - Alexey Ryndin
- Federal Research Centre the Subtropical Scientific Centre of the Russian Academy of Sciences, 354002 Sochi, Russia
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Forzano F, Antonova O, Clarke A, de Wert G, Hentze S, Jamshidi Y, Moreau Y, Perola M, Prokopenko I, Read A, Reymond A, Stefansdottir V, van El C, Genuardi M. Reply to Letter by Tellier et al., 'Scientific refutation of ESHG statement on embryo selection'. Eur J Hum Genet 2023; 31:279-281. [PMID: 36450798 PMCID: PMC9995443 DOI: 10.1038/s41431-022-01241-4] [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] [Received: 11/03/2022] [Accepted: 11/08/2022] [Indexed: 12/03/2022] Open
Affiliation(s)
- Francesca Forzano
- Clinical Genetics Department, Guy's and St Thomas NHS Foundation Trust, London, UK.
| | - Olga Antonova
- Department of Medical Genetics, Medical University of Sofia, Sofia, Bulgaria
| | - Angus Clarke
- Division of Cancer and Genetics, School of Medicine, Cardiff University, Cardiff, Wales, UK
| | | | | | - Yalda Jamshidi
- Genetics Research Centre, Molecular and Clinical Sciences Institute, St George's University of London, London, UK
| | - Yves Moreau
- University of Leuven ESAT-STADIUS, B-3001, Leuven, Belgium
| | - Markus Perola
- Finnish Institute for Health and Welfare (THL), Biomedicum 1, Haartmaninkatu 8, 00290, Helsinki, Finland
| | - Inga Prokopenko
- Department of Clinical & Experimental Medicine, University of Surrey, Guildford, UK
- UMR 8199 - EGID, Institut Pasteur de Lille, CNRS, University of Lille, F-59000, Lille, France
- People-Centred Artificial Intelligence Institute, University of Surrey, Guildford, UK
| | - Andrew Read
- Centre for Genomic Medicine, St Mary's Hospital, M13 0JH, Manchester, England
| | - Alexandre Reymond
- Center for Integrative Genomics, University of Lausanne, CH- 1015, Lausanne, Switzerland
| | - Vigdis Stefansdottir
- Department of Genetics and Molecular Medicine, Landspitali University Hospital, Reykjavik, Iceland
| | - Carla van El
- Section Community Genetics, Department of Clinical Genetics and Amsterdam Public Health Research Institute, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Maurizio Genuardi
- UOC Genetica Medica, Dipartimento di Scienze di Laboratorio e Infettivologiche, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
- Sezione di Medicina Genomica, Dipartimento di Scienze della Vita e Sanità Pubblica, Università Cattolica del Sacro Cuore, Rome, Italy
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Malyugin BE, Belodedova A, Antonova O, Gelyastanov A, Tuuminen R, Levinger E, Achiron A, Knyazer B. Clinical comparison of manual and laser-cut corneal tunnel for intrastromal air injection in femtosecond laser-assisted deep anterior lamellar keratoplasty (DALK). Graefes Arch Clin Exp Ophthalmol 2023; 261:185-191. [PMID: 35896678 DOI: 10.1007/s00417-022-05765-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Revised: 06/30/2022] [Accepted: 07/09/2022] [Indexed: 01/04/2023] Open
Abstract
PURPOSE The most crucial step in deep anterior lamellar keratoplasty (DALK) is to achieve a bare Descemet's membrane. We aimed to assess a new femtosecond laser software that allows for a precise intrastromal tunnel creation for big bubble (BB) air injection using a real-time microscope-integrated optical coherence tomography. MATERIALS AND METHODS A retrospective review of 61 eyes of 61 patients with keratoconus. Before introducing the new software update, DALK was performed using a partial-assisted femtosecond laser (partial-thickness circular cut followed by a lamellar cut) with manual intrastromal tunnel creation (partial FS-DALK group). After the software update, the femtosecond laser created the intrastromal tunnel (full FS-DALK group). RESULTS In the full FS-DALK group, the BB's formation was significantly higher (64.3% vs. 36.4%, p = 0.04), and surgery time was shorter (21.8 ± 5.1 vs. 25.6 ± 6.8 min, p = 0.025) than in the partial FS-DALK. Penetrating keratoplasty conversion rate (7.1% vs. 15.1%, p = 0.432) was similar between the groups. Both groups showed statistically significant improvement in uncorrected and corrected distance visual acuity, central corneal thickness, surface asymmetry, and regularity indices. Endothelial cell density loss at 12 and 18 months was lower in the full compared with the partial FS-DALK group (12 months:10.0% vs. 16; 18 months: 10.7 vs. 16.5%, p < 0.001 for both comparisons). CONCLUSIONS Creating the intrastromal guiding tunnel using FS laser for air injection resulted in a higher rate of BB formation, reduced long-term endothelial cell loss, and operating room time.
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Affiliation(s)
- Boris E Malyugin
- S. Fyodorov Eye Microsurgery Federal State Institution, Beskudnikovsky Blvd., 59a, 127486, Moscow, Russian Federation. .,A.I. Yevdokimov Moscow State University of Medicine and Dentistry, Moscow, Russian Federation. .,Department of Ophthalmology, Soroka University Medical Center and Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel.
| | - Alexandra Belodedova
- S. Fyodorov Eye Microsurgery Federal State Institution, Beskudnikovsky Blvd., 59a, 127486, Moscow, Russian Federation
| | - Olga Antonova
- S. Fyodorov Eye Microsurgery Federal State Institution, Beskudnikovsky Blvd., 59a, 127486, Moscow, Russian Federation
| | - Aslan Gelyastanov
- S. Fyodorov Eye Microsurgery Federal State Institution, Beskudnikovsky Blvd., 59a, 127486, Moscow, Russian Federation
| | - Raimo Tuuminen
- Helsinki Retina Research Group, University of Helsinki, Helsinki, Finland.,Department of Ophthalmology, Kymenlaakso Central Hospital, Kotka, Finland
| | - Eliya Levinger
- Tel-Aviv Sourasky Medical Center and Sackler School of Medicine, Sackler Faculty of Medicine, Tel Aviv University, Dafna St 5, Tel Aviv-Yafo, Israel
| | - Asaf Achiron
- Tel-Aviv Sourasky Medical Center and Sackler School of Medicine, Sackler Faculty of Medicine, Tel Aviv University, Dafna St 5, Tel Aviv-Yafo, Israel.
| | - Boris Knyazer
- Department of Ophthalmology, Soroka University Medical Center and Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
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Gavrilenko T, Chukhina I, Antonova O, Krylova E, Shipilina L, Oskina N, Kostina L. Comparative Analysis of the Genetic Diversity of Chilean Cultivated Potato Based on a Molecular Study of Authentic Herbarium Specimens and Present-Day Gene Bank Accessions. Plants (Basel) 2022; 12:174. [PMID: 36616303 PMCID: PMC9823414 DOI: 10.3390/plants12010174] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/26/2022] [Revised: 12/19/2022] [Accepted: 12/28/2022] [Indexed: 06/17/2023]
Abstract
At the end of the 1920s, Vavilov organized several potato-collecting missions in South and Central America. Vavilov and his colleagues, Juzepczuk and Bukasov, participated in these expeditions and worked on gathered material, designated two centers of potato varietal riches and diversity-the Peru-Bolivia high-mountain center and the southern coast of Chile. The WIR Herbarium holds authentic specimens of many taxa described by Russian taxonomists. Here, a set of 20 plastid DNA-specific markers was applied for 49 authentic herbarium specimens of Solanum tuberosum L. from the WIR Herbarium to analyze the genetic diversity of the landrace population collected by Juzepczuk in 1928 in southern-central Chile. Two plastid DNA types, T and A, and two chlorotypes were identified in herbarium specimens, with a clear predominance (96%) of chlorotype cpT_III. In addition, we analyzed 46 living Chilean accessions from the VIR field potato gene bank that were collected after the appearance of Phytophthora infestans in Chile. These living accessions were differentiated into four chlorotypes. Finding a D-type cytoplasm in living Chilean accessions that possess two new chlorotypes indicates a replacement of native cultivars and introgression from the wild Mexican species S. demissum that was actively used in breeding as a source of race-specific resistance to late blight.
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Forzano F, Antonova O, Clarke A, de Wert G, Hentze S, Jamshidi Y, Moreau Y, Perola M, Prokopenko I, Read A, Reymond A, Stefansdottir V, van El C, Genuardi M. Correction: The use of polygenic risk scores in pre-implantation genetic testing: an unproven, unethical practice. Eur J Hum Genet 2022; 30:1306. [PMID: 35982123 DOI: 10.1038/s41431-022-01155-1] [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: 11/09/2022] Open
Affiliation(s)
- Francesca Forzano
- Clinical Genetics Department, Guy's and St Thomas NHS Foundation Trust, London, UK.
| | - Olga Antonova
- Department of Medical Genetics, Medical University of Sofia, Sofia, Bulgaria
| | - Angus Clarke
- Division of Cancer and Genetics, School of Medicine, Cardiff University, Cardiff, Wales, UK
| | | | | | - Yalda Jamshidi
- Genetics Research Centre, Molecular and Clinical Sciences Institute, St George's University of London, London, UK
| | - Yves Moreau
- University of Leuven ESAT-STADIUS, B-3001, Leuven, Belgium
| | - Markus Perola
- Finnish Institute for Health and Welfare (THL), Biomedicum 1, Haartmaninkatu 8, 00290, Helsinki, Finland
| | - Inga Prokopenko
- Department of Clinical & Experimental Medicine, University of Surrey, Guildford, UK.,UMR 8199 - EGID, Institut Pasteur de Lille, CNRS, University of Lille, F-59000, Lille, France.,Institute of Biochemistry and Genetics, Ufa Federal Research Centre, Russian Academy of Sciences, Ufa, Russian Federation
| | - Andrew Read
- Centre for Genomic Medicine, St Mary's Hospital, Manchester, M13 0JH, England
| | - Alexandre Reymond
- Center for Integrative Genomics, University of Lausanne, CH-1015, Lausanne, Switzerland
| | - Vigdis Stefansdottir
- Department of Genetics and Molecular Medicine, Landspitali University Hospital, Reykjavik, Iceland
| | - Carla van El
- Section Community Genetics, Department of Clinical Genetics and Amsterdam Public Health Research Institute, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Maurizio Genuardi
- UOC Genetica Medica, Dipartimento di Scienze di Laboratorio e Infettivologiche, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy.,Sezione di Medicina Genomica, Dipartimento di Scienze della Vita e Sanità Pubblica, Università Cattolica del Sacro Cuore, Rome, Italy
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9
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Nadtochenko V, Cherepanov D, Kochev S, Motyakin M, Kostrov A, Golub A, Antonova O, Kabachii Y, Rtimi S. Structural and optical properties of Mn2+-doped ZnCdS/ZnS core/shell quantum dots: New insights in Mn2+ localization for higher luminescence sensing. J Photochem Photobiol A Chem 2022. [DOI: 10.1016/j.jphotochem.2022.113946] [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: 11/25/2022]
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10
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Kandinov I, Gryadunov D, Vinokurova A, Antonova O, Kubanov A, Solomka V, Shagabieva J, Deryabin D, Shaskolskiy B. In vitro Susceptibility to β-Lactam Antibiotics and Viability of Neisseria gonorrhoeae Strains Producing Plasmid-Mediated Broad- and Extended-Spectrum β-Lactamases. Front Microbiol 2022; 13:896607. [PMID: 35794921 PMCID: PMC9251354 DOI: 10.3389/fmicb.2022.896607] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Accepted: 06/01/2022] [Indexed: 11/17/2022] Open
Abstract
Neisseria gonorrhoeae plasmids can mediate high-level antimicrobial resistance. The emergence of clinical isolates producing plasmid β-lactamases that can hydrolyze cephalosporins, the mainstay treatment for gonorrhea, may be a serious threat. In this work, N. gonorrhoeae strains producing plasmid-mediated broad- and extended-spectrum β-lactamases (ESBLs) were obtained in vitro, and their viability and β-lactam antibiotic susceptibility were studied. Artificial pblaTEM-1 and pblaTEM-20 plasmids were constructed by site-directed mutagenesis from a pblaTEM-135 plasmid isolated from a clinical isolate. Minimum inhibitory concentration (MIC) values for a series of β-lactam antibiotics, including benzylpenicillin, ampicillin, cefuroxime, ceftriaxone, cefixime, cefotaxime, cefepime, meropenem, imipenem, and doripenem, were determined. The N. gonorrhoeae strain carrying the pblaTEM-20 plasmid exhibited a high level of resistance to penicillins and second–fourth-generation cephalosporins (MIC ≥2 mg/L) but not to carbapenems (MIC ≤0.008 mg/L). However, this strain stopped growing after 6 h of culture. The reduction in viability was not associated with loss of the plasmid but can be explained by the presence of the plasmid itself, which requires additional reproduction costs, and to the expression of ESBLs, which can affect the structure of the peptidoglycan layer in the cell membrane. Cell growth was mathematically modeled using the generalized Verhulst equation, and the reduced viability of the plasmid-carrying strains compared to the non-plasmid-carrying strains was confirmed. The cell death kinetics of N. gonorrhoeae strains without the pblaTEM-20 plasmid in the presence of ceftriaxone can be described by a modified Chick–Watson law. The corresponding kinetics of the N. gonorrhoeae strain carrying the pblaTEM-20 plasmid reflected several processes: the hydrolysis of ceftriaxone by the TEM-20 β-lactamase and the growth and gradual death of cells. The demonstrated reduction in the viability of N. gonorrhoeae strains carrying the pblaTEM-20 plasmid probably explains the absence of clinical isolates of ESBL-producing N. gonorrhoeae.
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Affiliation(s)
- Ilya Kandinov
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, Russia
- *Correspondence: Ilya Kandinov,
| | - Dmitry Gryadunov
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, Russia
| | - Alexandra Vinokurova
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, Russia
| | - Olga Antonova
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, Russia
| | - Alexey Kubanov
- State Research Center of Dermatovenerology and Cosmetology, Russian Ministry of Health, Moscow, Russia
| | - Victoria Solomka
- State Research Center of Dermatovenerology and Cosmetology, Russian Ministry of Health, Moscow, Russia
| | - Julia Shagabieva
- State Research Center of Dermatovenerology and Cosmetology, Russian Ministry of Health, Moscow, Russia
| | - Dmitry Deryabin
- State Research Center of Dermatovenerology and Cosmetology, Russian Ministry of Health, Moscow, Russia
| | - Boris Shaskolskiy
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, Russia
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11
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Forzano F, Antonova O, Clarke A, de Wert G, Hentze S, Jamshidi Y, Moreau Y, Perola M, Prokopenko I, Read A, Reymond A, Stefansdottir V, van El C, Genuardi M. Correction: The use of polygenic risk scores in pre-implantation genetic testing: an unproven, unethical practice. Eur J Hum Genet 2022; 30:628. [PMID: 35283483 DOI: 10.1038/s41431-022-01067-0] [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: 11/09/2022] Open
Affiliation(s)
- Francesca Forzano
- Clinical Genetics Department, Guy's and St Thomas NHS Foundation Trust, London, UK.
| | - Olga Antonova
- Department of Medical Genetics, Medical University of Sofia, Sofia, Bulgaria
| | - Angus Clarke
- Division of Cancer and Genetics, School of Medicine, Cardiff University, Cardiff, Wales, UK
| | | | | | - Yalda Jamshidi
- Genetics Research Centre, Molecular and Clinical Sciences Institute, St George's University of London, London, UK
| | - Yves Moreau
- University of Leuven ESAT-STADIUS, Leuven, Belgium
| | - Markus Perola
- Biomedicum 1, Finnish Institute for Health and Welfare (THL), Helsinki, Finland
| | - Inga Prokopenko
- Department of Clinical & Experimental Medicine, University of Surrey, Guildford, UK.,UMR 8199-EGID, Institut Pasteur de Lille, CNRS, University of Lille, Lille, France.,Institute of Biochemistry and Genetics, Ufa Federal Research Centre, Russian Academy of Sciences, Ufa, Russian Federation
| | - Andrew Read
- Finnish Institute for Health and Welfare, Helsinki, Finland.,Centre for Genomic Medicine, St Mary's Hospital, Manchester, NJ, USA
| | - Alexandre Reymond
- Center for Integrative Genomics, University of Lausanne, Lausanne, Switzerland
| | - Vigdis Stefansdottir
- Department of Genetics and Molecular Medicine, Landspitali University Hospital, Reykjavik, Iceland
| | - Carla van El
- Section Community Genetics, Department of Clinical Genetics and Amsterdam Public Health Research Institute, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Maurizio Genuardi
- UOC Genetica Medica, Dipartimento di Scienze di Laboratorio e Infettivologiche, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy.,Sezione di Medicina Genomica, Dipartimento di Scienze della Vita e Sanità Pubblica, Università Cattolica del Sacro Cuore, Rome, Italy
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12
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Forzano F, Antonova O, Clarke A, de Wert G, Hentze S, Jamshidi Y, Moreau Y, Perola M, Prokopenko I, Read A, Reymond A, Stefansdottir V, van El C, Genuardi M. The use of polygenic risk scores in pre-implantation genetic testing: an unproven, unethical practice. Eur J Hum Genet 2022; 30:493-495. [PMID: 34916614 PMCID: PMC9090769 DOI: 10.1038/s41431-021-01000-x] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2021] [Accepted: 10/28/2021] [Indexed: 01/25/2023] Open
Affiliation(s)
- Francesca Forzano
- grid.420545.20000 0004 0489 3985Clinical Genetics Department, Guy’s and St Thomas NHS Foundation Trust, London, UK
| | - Olga Antonova
- grid.410563.50000 0004 0621 0092Department of Medical Genetics, Medical University of Sofia, Sofia, Bulgaria
| | - Angus Clarke
- grid.5600.30000 0001 0807 5670Division of Cancer and Genetics, School of Medicine, Cardiff University, Cardiff, Wales UK
| | - Guido de Wert
- grid.5012.60000 0001 0481 6099Maastricht University, Maastricht, The Netherlands
| | | | - Yalda Jamshidi
- grid.264200.20000 0000 8546 682XGenetics Research Centre, Molecular and Clinical Sciences Institute, St George’s University of London, London, UK
| | - Yves Moreau
- grid.5596.f0000 0001 0668 7884University of Leuven ESAT-STADIUS, B-3001 Leuven, Belgium
| | - Markus Perola
- grid.14758.3f0000 0001 1013 0499Finnish Institute for Health and Welfare (THL), Biomedicum 1, Haartmaninkatu 8, 00290 Helsinki, Finland
| | - Inga Prokopenko
- grid.5475.30000 0004 0407 4824Department of Clinical & Experimental Medicine, University of Surrey, Guildford, UK ,grid.503422.20000 0001 2242 6780UMR 8199 - EGID, Institut Pasteur de Lille, CNRS, University of Lille, F-59000 Lille, France ,grid.513129.dInstitute of Biochemistry and Genetics, Ufa Federal Research Centre, Russian Academy of Sciences, Ufa, Russian Federation
| | - Andrew Read
- grid.416523.70000 0004 0641 2620Centre for Genomic Medicine, St Mary’s Hospital, Manchester, M13 0JH England
| | - Alexandre Reymond
- grid.9851.50000 0001 2165 4204Center for Integrative Genomics, University of Lausanne, CH-1015 Lausanne, Switzerland
| | - Vigdis Stefansdottir
- grid.410540.40000 0000 9894 0842Department of Genetics and Molecular Medicine, Landspitali University Hospital, Reykjavik, Iceland
| | - Carla van El
- grid.12380.380000 0004 1754 9227Section Community Genetics, Department of Clinical Genetics and Amsterdam Public Health Research Institute, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Maurizio Genuardi
- grid.414603.4UOC Genetica Medica, Dipartimento di Scienze di Laboratorio e Infettivologiche, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy ,grid.8142.f0000 0001 0941 3192Sezione di Medicina Genomica, Dipartimento di Scienze della Vita e Sanità Pubblica, Università Cattolica del Sacro Cuore, Rome, Italy
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13
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Toker IA, Lev I, Mor Y, Gurevich Y, Fisher D, Houri-Zeevi L, Antonova O, Doron H, Anava S, Gingold H, Hadany L, Shaham S, Rechavi O. Transgenerational inheritance of sexual attractiveness via small RNAs enhances evolvability in C. elegans. Dev Cell 2022; 57:298-309.e9. [PMID: 35134343 PMCID: PMC8826646 DOI: 10.1016/j.devcel.2022.01.005] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Revised: 09/12/2021] [Accepted: 01/05/2022] [Indexed: 11/16/2022]
Abstract
It is unknown whether transient transgenerational epigenetic responses to environmental challenges affect the process of evolution, which typically unfolds over many generations. Here, we show that in C. elegans, inherited small RNAs control genetic variation by regulating the crucial decision of whether to self-fertilize or outcross. We found that under stressful temperatures, younger hermaphrodites secrete a male-attracting pheromone. Attractiveness transmits transgenerationally to unstressed progeny via heritable small RNAs and the Argonaute Heritable RNAi Deficient-1 (HRDE-1). We identified an endogenous small interfering RNA pathway, enriched in endo-siRNAs that target sperm genes, that transgenerationally regulates sexual attraction, male prevalence, and outcrossing rates. Multigenerational mating competition experiments and mathematical simulations revealed that over generations, animals that inherit attractiveness mate more and their alleles spread in the population. We propose that the sperm serves as a "stress-sensor" that, via small RNA inheritance, promotes outcrossing in challenging environments when increasing genetic variation is advantageous.
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Affiliation(s)
- Itai Antoine Toker
- Department of Neurobiology, Faculty of Life Sciences & Sagol School of Neuroscience, Tel Aviv University, Tel Aviv, Israel.
| | - Itamar Lev
- Department of Neurobiology, Faculty of Life Sciences & Sagol School of Neuroscience, Tel Aviv University, Tel Aviv, Israel.
| | - Yael Mor
- Department of Neurobiology, Faculty of Life Sciences & Sagol School of Neuroscience, Tel Aviv University, Tel Aviv, Israel.
| | - Yael Gurevich
- School of Plant Sciences and Food Security, Faculty of Life Sciences, Tel Aviv University, Tel Aviv, Israel
| | - Doron Fisher
- Department of Neurobiology, Faculty of Life Sciences & Sagol School of Neuroscience, Tel Aviv University, Tel Aviv, Israel
| | - Leah Houri-Zeevi
- Department of Neurobiology, Faculty of Life Sciences & Sagol School of Neuroscience, Tel Aviv University, Tel Aviv, Israel
| | - Olga Antonova
- Department of Neurobiology, Faculty of Life Sciences & Sagol School of Neuroscience, Tel Aviv University, Tel Aviv, Israel
| | - Hila Doron
- Department of Neurobiology, Faculty of Life Sciences & Sagol School of Neuroscience, Tel Aviv University, Tel Aviv, Israel
| | - Sarit Anava
- Department of Neurobiology, Faculty of Life Sciences & Sagol School of Neuroscience, Tel Aviv University, Tel Aviv, Israel
| | - Hila Gingold
- Department of Neurobiology, Faculty of Life Sciences & Sagol School of Neuroscience, Tel Aviv University, Tel Aviv, Israel
| | - Lilach Hadany
- School of Plant Sciences and Food Security, Faculty of Life Sciences, Tel Aviv University, Tel Aviv, Israel
| | - Shai Shaham
- Laboratory of Developmental Genetics, The Rockefeller University, New York, NY, USA
| | - Oded Rechavi
- Department of Neurobiology, Faculty of Life Sciences & Sagol School of Neuroscience, Tel Aviv University, Tel Aviv, Israel.
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14
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Antonova O, Calvo J, Seifert A. Rapid Detection of Thermal Treatment of Honey by Chemometrics-Assisted FTIR Spectroscopy. Foods 2021; 10:foods10112892. [PMID: 34829173 PMCID: PMC8623053 DOI: 10.3390/foods10112892] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Revised: 11/18/2021] [Accepted: 11/19/2021] [Indexed: 12/04/2022] Open
Abstract
Honey, as a nutritious natural sweetener produced by honeybees, offers a unique biochemical composition with great benefit to human health. Transportation and storage conditions as well as violations of processing can lead to decomposition of vitamins, destruction of the integrity of the antioxidant components and enzymes, and further biochemical changes with impact on nutritional quality. We developed a fast detection method of adulterations or changes of honey caused by thermal exposure, which does not require any sample pretreatment. By Fourier-transform infrared spectroscopy, supported by chemometrics methods, we investigated three types of raw honey before and after heat treatment for varying exposure times at different temperatures. Applying principal component analysis and linear discriminant analysis to the preprocessed spectroscopic data, allowed us to discriminate raw honey from thermally altered ones even at low temperatures of 40 °C with high accuracies ≥90%.
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Affiliation(s)
- Olga Antonova
- CIC nanoGUNE BRTA, 20018 San Sebastián, Spain;
- Correspondence: ; Tel.: +34-64-442-8382
| | - Javier Calvo
- CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), 20014 San Sebastián, Spain;
| | - Andreas Seifert
- CIC nanoGUNE BRTA, 20018 San Sebastián, Spain;
- IKERBASQUE, Basque Foundation for Science, 48013 Bilbao, Spain
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15
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Filkin V, Kuznetsov I, Antonova O, Tarotin I, Nemov A, Aristovich K. Can ionic concentration changes due to mechanical deformation be responsible for the neurostimulation caused by focused ultrasound? A simulation study. Physiol Meas 2021; 42. [PMID: 34530410 DOI: 10.1088/1361-6579/ac2790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Accepted: 09/16/2021] [Indexed: 11/12/2022]
Abstract
Objective.Ultrasound stimulation is an emerging neuromodulation technique, for which the exact mechanism of action is still unknown. Despite the number of hypotheses such as mechanosensitive ion channels and intermembrane cavitation, they fail to explain all of the observed experimental effects. Here we are investigating the ionic concentration change as a prime mechanism for the neurostimulation by the ultrasound.Approach.We derive the direct analytical relationship between the mechanical deformations in the tissue and the electric boundary conditions for the cable theory equations and solve them for two types of neuronal axon models: Hodgkin-Huxley and C-fibre. We detect the activation thresholds for a variety of ultrasound stimulation cases including continuous and pulsed ultrasound and estimate the mechanical deformations required for reaching the thresholds and generating action potentials (APs).Main results.We note that the proposed mechanism strongly depends on the mechanical properties of the neural tissues, which at the moment cannot be located in literature with the required certainty. We conclude that given certain common linear assumptions, this mechanism alone cannot cause significant effects and be responsible for neurostimulation. However, we also conclude that if the lower estimation of mechanical properties of neural tissues in literature is true, or if the normal cavitation occurs during the ultrasound stimulation, the proposed mechanism can be a prime cause for the generation of APs.Significance.The approach allows prediction and modelling of most observed experimental effects, including the probabilistic ones, without the need for any extra physical effects or additional parameters.
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Affiliation(s)
- Vladimir Filkin
- Higher School of Mechanics and Control, Peter the Great St. Petersburg Polytechnic University, Russia
| | - Igor Kuznetsov
- Higher School of Mechanics and Control, Peter the Great St. Petersburg Polytechnic University, Russia
| | - Olga Antonova
- Higher School of Mechanics and Control, Peter the Great St. Petersburg Polytechnic University, Russia
| | - Ilya Tarotin
- Department of Medical Physics and Biomedical Engineering, University College London, United Kingdom
| | - Alexander Nemov
- Higher School of Mechanics and Control, Peter the Great St. Petersburg Polytechnic University, Russia
| | - Kirill Aristovich
- Department of Medical Physics and Biomedical Engineering, University College London, United Kingdom
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16
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Melkumyants A, Buryachkovskaya L, Lomakin N, Antonova O, Serebruany V. Mild COVID-19 and Impaired Blood Cell-Endothelial Crosstalk: Considering Long-Term Use of Antithrombotics? Thromb Haemost 2021; 122:123-130. [PMID: 34482535 DOI: 10.1055/a-1551-9911] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
BACKGROUND Current coronavirus disease 2019 (COVID-19) pandemic reveals thrombotic, vascular, and endothelial dysfunctions at peak disease. However, the duration, degree of damage, and appropriate long-term use of antithrombotic strategies are unclear. Most COVID data are yielded from random clinical observations or autopsy of postmortem samples, while precise blood cellular data in survivors are insufficient. METHODS We analyzed erythrocytes, circulating endothelial cells, and echinocytes by electron microscopy and flow cytometry in patients with confirmed COVID-19 (n = 31) and matched healthy controls (n = 32) on admission and at hospital discharge. RESULTS All patients experienced mild disease, none required pulmonary support, and all survived. Admission number of circulating endothelial cells was significantly (40-100 times) higher in COVID-19 patients. Cells were massively damaged by multiple fenestrae in membranes with diameter comparable to the size of supercapsid in SARS-CoV-2 (severe acute respiratory syndrome coronavirus 2) virus. COVID-19 also provoked formation of stacked aggregated erythrocytes capable of clogging microvascular bed and of diminishing oxygen supply. In some patients, such abnormalities persisted at hospital discharge revealing remaining intracellular penetration of SARS-CoV-2 where it may be replicated and returned to circulation. CONCLUSION These observational and descriptive data suggest that persistent viral cell injury may cause blood vessel damage; their increased permeability resulted in tissue edema, inflammation, platelet activation, and augmented thrombosis. There is a residual blood cell damage following the acute phase in some COVID-19 survivors. Controlled outcome-driven trials are urgently needed for exploring optimal use of long-term antithrombotics and vascular protection strategies even after mild COVID-19.
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Affiliation(s)
- Arthur Melkumyants
- Cell Adhesion Department, National Medical Research Center of Cardiology, Moscow, Russia.,Department of Physics of Living Systems, Institute of Physics and Technology, Moscow, Russia
| | | | - Nikita Lomakin
- Cardiology Division, Central Clinical Hospital of Presidential Administration, Moscow, Russia
| | - Olga Antonova
- Cell Adhesion Department, National Medical Research Center of Cardiology, Moscow, Russia
| | - Victor Serebruany
- Division of Neurology, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States
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17
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Spasova V, Mladenov B, Rangelov S, Hammoudeh Z, Nesheva D, Serbezov D, Staneva R, Hadjidekova S, Ganev M, Balabanski L, Vazharova R, Slavov C, Toncheva D, Antonova O. Clinical impact of copy number variation changes in bladder cancer samples. Exp Ther Med 2021; 22:901. [PMID: 34257714 PMCID: PMC8243332 DOI: 10.3892/etm.2021.10333] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2019] [Accepted: 02/18/2021] [Indexed: 12/19/2022] Open
Abstract
The aim of the present study was to detect copy number variations (CNVs) related to tumour progression and metastasis of urothelial carcinoma through whole-genome scanning. A total of 30 bladder cancer samples staged from pTa to pT4 were included in the study. DNA was extracted from freshly frozen tissue via standard phenol-chloroform extraction and CNV analysis was performed on two alternative platforms (CytoChip Oligo aCGH, 4x44K and Infinium OncoArray-500K BeadChip; Illumina, Inc.). Data were analysed with BlueFuse Multi software and Karyostudio, respectively. The results highlight the role of genomic imbalances in regions containing genes with metastatic and proliferative potential for tumour invasion. A high level of genomic instability in uroepithelial tumours was observed and a total of 524 aberrations, including 175 losses and 349 gains, were identified. The most prevalent genetic imbalances affected the following regions: 1p, 1q, 2q, 4p, 4q, 5p, 5q, 6p, 6q, 7q, 8q, 9p, 9q, 10p, 10q, 11q, 13q and 17q. High-grade tumours more frequently harboured genomic imbalances (n=227) than low-grade tumours (n=103). A total of 36 CNVs in high-grade bladder tumours were detected in chromosomes 1-5, 8-11, 14, 17, 19 and 20. Furthermore, five loss of heterozygosity variants containing 176 genes were observed in high-grade bladder cancer and may be used as potential targets for precision therapy. Revealing specific chromosomal regions related to the metastatic potential of uroepithelial tumours may lay a foundation for implementing molecular CNV profiling of bladder tumours as part of a routine progression risk estimation strategy, thus expanding the personalized therapeutic approach.
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Affiliation(s)
- Victoria Spasova
- Department of Medical Genetics, Medical University-Sofia, 1431 Sofia, Bulgaria
| | - Boris Mladenov
- Department of Urology, UMBALSM N.I. Pirogov, 1606 Sofia, Bulgaria
| | - Simeon Rangelov
- Department of Urology, Tsaritsa Yoanna University Hospital, 1527 Sofia, Bulgaria
| | - Zora Hammoudeh
- Department of Medical Genetics, Medical University-Sofia, 1431 Sofia, Bulgaria
| | - Desislava Nesheva
- Department of Medical Genetics, Medical University-Sofia, 1431 Sofia, Bulgaria
| | - Dimitar Serbezov
- Department of Medical Genetics, Medical University-Sofia, 1431 Sofia, Bulgaria
| | - Rada Staneva
- Department of Medical Genetics, Medical University-Sofia, 1431 Sofia, Bulgaria.,Medical Genetics Laboratory, Nadezhda Women's Health Hospital, 1373 Sofia, Bulgaria
| | - Savina Hadjidekova
- Department of Medical Genetics, Medical University-Sofia, 1431 Sofia, Bulgaria.,Medical Genetics Laboratory, Nadezhda Women's Health Hospital, 1373 Sofia, Bulgaria
| | - Mihail Ganev
- Department of Medical Genetics, Medical University-Sofia, 1431 Sofia, Bulgaria
| | - Lubomir Balabanski
- Department of Medical Genetics, Medical University-Sofia, 1431 Sofia, Bulgaria.,Medical Genetics Laboratory, GARH Malinov, 1680 Sofia, Bulgaria
| | - Radoslava Vazharova
- Medical Genetics Laboratory, GARH Malinov, 1680 Sofia, Bulgaria.,Department of Biology, Medical Genetics and Microbiology, Faculty of Medicine, Sofia University St. Kliment Ohridski, 1407 Sofia, Bulgaria
| | - Chavdar Slavov
- Department of Urology, Tsaritsa Yoanna University Hospital, 1527 Sofia, Bulgaria
| | - Draga Toncheva
- Department of Medical Genetics, Medical University-Sofia, 1431 Sofia, Bulgaria
| | - Olga Antonova
- Department of Medical Genetics, Medical University-Sofia, 1431 Sofia, Bulgaria
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18
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Krupnova L, Antonova O, Kokhan V, Spivak I, Krikun V. [PUBLIC CONTROL AS A MEAN OF ENSURING THE REALIZATION OF THE RIGHT TO HEALTH CARE]. Georgian Med News 2021:184-189. [PMID: 34248052] [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: 06/13/2023]
Abstract
The purpose of the article is to reveal the essence and specific features of public control as a mean of ensuring the realization of the right to health care, taking into account the existing scientific points of view and reasoning. The research materials were scientific works of Ukrainian scholars, analytical materials, political and legal opinion-based journalism, Internet resources and Ukrainian legislation regulating the activities of public control (supervision) in the health care sector. Generally scientific (systemic, structural and functional, comparative, etc.) and specially legal methods of scientific cognition (formal and legal, comparative and legal, method of studying legal practice, etc.) were used in the course of the study. The author has provided characteristics of public control in the health care sector and has formulated own definition of such a control. The author has studied the powers of the subjects of public control in the health care sector, where control over the observance of legislation in the activities of a certain authority or health institution is the main one. It has been noted that the activities of subjects, exercising public control, have the organizational nature and do not lead to legally significant consequences, although they contribute to the implementation of legal forms of ensuring relations in the health care sector. It has been emphasized that the subjects, exercising public control, do not have authoritative powers, but contribute to the realization of civil right to participate in the healthcare management.
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Affiliation(s)
- L Krupnova
- 1Criminal Law and Justice department of International Economics and Humanities University named after Academician Stepan Demianchuk; Ukraine
| | - O Antonova
- 2National Academy of Public Administration under the President of Ukraine, Kyiv; Ukraine
| | - V Kokhan
- 3Scientific and Research Institute of Providing Legal Framework for the Innovative Development of National Academy of Law Sciences of Ukraine, Kharkiv; Ukraine
| | - I Spivak
- 4National Technical University of Ukraine «Igor Sikorsky Kyiv Polytechnic Institute»; 5University of State Fiscal Service of Ukraine, Irpin, Ukraine
| | - V Krikun
- 5University of State Fiscal Service of Ukraine, Irpin, Ukraine
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19
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Balabanski L, Serbezov D, Nikolova D, Antonova O, Nesheva D, Hammoudeh Z, Vazharova R, Karachanak-Yankova S, Staneva R, Mihaylova M, Damyanova V, Hadjidekova S, Toncheva D. Centenarian Exomes as a Tool for Evaluating the Clinical Relevance of Germline Tumor Suppressor Mutations. Technol Cancer Res Treat 2020; 19:1533033820911082. [PMID: 32233832 PMCID: PMC7132786 DOI: 10.1177/1533033820911082] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
Objectives: The aim of the present study was to evaluate the clinical relevance of mutations in
tumor suppressor genes using whole-exome sequencing data from centenarians and young
healthy individuals. Methods: Two pools, one of centenarians and one of young individuals, were constructed and
whole-exome sequencing was performed. We examined the whole-exome sequencing data of
Bulgarian individuals for carriership of tumor suppressor gene variants. Results: Of all variants annotated in both pools, 5080 (0.06%) are variants in tumor suppressor
genes but only 46 show significant difference in allele frequencies between the two
studied groups. Four variants (0.004%) are pathogenic/risk factors according to single
nucleotide polymorphism database: rs1566734 in PTPRJ, rs861539 in
XRCC3, rs203462 in AKAP10, and rs486907 in
RNASEL. Discussion: Based on their high minor allele frequencies and presence in the centenarian group, we
could reclassify them from pathogenic/risk factors to benign. Our study shows that
centenarian exomes can be used for re-evaluating the clinically uncertain variants.
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Affiliation(s)
- Lubomir Balabanski
- Department of Medical Genetics, Medical University-Sofia, Sofia, Bulgaria.,Hospital"Malinov," Sofia, Bulgaria
| | - Dimitar Serbezov
- Department of Medical Genetics, Medical University-Sofia, Sofia, Bulgaria
| | - Dragomira Nikolova
- Department of Medical Genetics, Medical University-Sofia, Sofia, Bulgaria
| | - Olga Antonova
- Department of Medical Genetics, Medical University-Sofia, Sofia, Bulgaria
| | - Desislava Nesheva
- Department of Medical Genetics, Medical University-Sofia, Sofia, Bulgaria
| | - Zora Hammoudeh
- Department of Medical Genetics, Medical University-Sofia, Sofia, Bulgaria
| | - Radoslava Vazharova
- Hospital"Malinov," Sofia, Bulgaria.,Medical Faculty, Sofia University "St Kliment Ohridski," Sofia, Bulgaria
| | | | - Rada Staneva
- Department of Medical Genetics, Medical University-Sofia, Sofia, Bulgaria
| | - Marta Mihaylova
- Department of Medical Genetics, Medical University-Sofia, Sofia, Bulgaria.,Bulgarian Academy of Science-BAS, Sofia, Bulgaria
| | - Vera Damyanova
- Department of Medical Genetics, Medical University-Sofia, Sofia, Bulgaria
| | - Savina Hadjidekova
- Department of Medical Genetics, Medical University-Sofia, Sofia, Bulgaria
| | - Draga Toncheva
- Department of Medical Genetics, Medical University-Sofia, Sofia, Bulgaria.,Bulgarian Academy of Science-BAS, Sofia, Bulgaria
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20
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Houri-Zeevi L, Korem Kohanim Y, Antonova O, Rechavi O. Three Rules Explain Transgenerational Small RNA Inheritance in C. elegans. Cell 2020; 182:1186-1197.e12. [PMID: 32841602 PMCID: PMC7479518 DOI: 10.1016/j.cell.2020.07.022] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 05/21/2020] [Accepted: 07/17/2020] [Indexed: 02/06/2023]
Abstract
Experiences trigger transgenerational small RNA-based responses in C. elegans nematodes. Dedicated machinery ensures that heritable effects are reset, but how the responses segregate in the population is unknown. We show that isogenic individuals differ dramatically in the persistence of transgenerational responses. By examining lineages of more than 20,000 worms, three principles emerge: (1) The silencing each mother initiates is distributed evenly among her descendants; heritable RNAi dissipates but is uniform in every generation. (2) Differences between lineages arise because the mothers that initiate heritable responses stochastically assume different “inheritance states” that determine the progeny’s fate. (3) The likelihood that an RNAi response would continue to be inherited increases the more generations it lasts. The inheritance states are determined by HSF-1, which regulates silencing factors and, accordingly, small RNA levels. We found that, based on the parents’ inheritance state, the descendants’ developmental rate in response to stress can be predicted. Segregation of inherited small RNA responses follows three simple principles Mothers stochastically assume inheritance states that determine the progeny’s fate HSF-1 defines the states and regulates silencing factors and small RNA levels The mothers’ inheritance state can predict the progeny’s response to stress
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Affiliation(s)
- Leah Houri-Zeevi
- Department of Neurobiology, Wise Faculty of Life Sciences & Sagol School of Neuroscience, Tel Aviv University, Tel Aviv 69978, Israel.
| | - Yael Korem Kohanim
- Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot 7610001, Israel
| | - Olga Antonova
- Department of Neurobiology, Wise Faculty of Life Sciences & Sagol School of Neuroscience, Tel Aviv University, Tel Aviv 69978, Israel
| | - Oded Rechavi
- Department of Neurobiology, Wise Faculty of Life Sciences & Sagol School of Neuroscience, Tel Aviv University, Tel Aviv 69978, Israel.
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21
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Goldberg M, Obolkina T, Smirnov S, Protsenko P, Titov D, Antonova O, Konovalov A, Kudryavtsev E, Sviridova I, Kirsanova V, Sergeeva N, Komlev V, Barinov S. The Influence of Co Additive on the Sintering, Mechanical Properties, Cytocompatibility, and Digital Light Processing Based Stereolithography of 3Y-TZP-5Al 2O 3 Ceramics. Materials (Basel) 2020; 13:ma13122789. [PMID: 32575732 PMCID: PMC7345489 DOI: 10.3390/ma13122789] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Revised: 06/14/2020] [Accepted: 06/15/2020] [Indexed: 01/14/2023]
Abstract
Nanocrystalline 3 mol% yttria-tetragonal zirconia polycrystal (3Y-TZP) ceramic powder containing 5 wt.% Al2O3 with 64 m2/g specific area was synthesized through precipitation method. Different amounts of Co (0-3 mol%) were introduced into synthesized powders, and ceramic materials were obtained by heat treatment in the air for 2 h at 1350-1550 °C. The influence of Co addition on the sintering temperature, phase composition, microstructure, mechanical and biomedical properties of the obtained composite materials, and on the resolution of the digital light processing (DLP) printed and sintered ceramic samples was investigated. The addition of a low amount of Co (0.33 mol%) allows us to decrease the sintering temperature, to improve the mechanical properties of ceramics, to preserve the nanoscale size of grains at 1350-1400 °C. The further increase of Co concentration resulted in the formation of both substitutional and interstitial sites in solid solution and appearance of CoAl2O4 confirmed by UV-visible spectroscopy, which stimulates grain growth. Due to the prevention of enlarging grains and to the formation of the dense microstructure in ceramic based on the tetragonal ZrO2 and Al2O3 with 0.33 mol% Co the bending strength of 720 ± 33 MPa was obtained after sintering at 1400 °C. The obtained materials demonstrated the absence of cytotoxicity and good cytocompatibility. The formation of blue CoAl2O4 allows us to improve the resolution of DLP based stereolithographic printed green bodies and sintered samples of the ceramics based on ZrO2-Al2O3. The developed materials and technology could be the basis for 3D manufacturing of bioceramic implants for medicine.
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Affiliation(s)
- Margarita Goldberg
- Laboratory of Composite Ceramic Materials, A.A. Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences, 119334 Moscow, Russia; (T.O.); (S.S.); (P.P.); (D.T.); (O.A.); (A.K.); (V.K.); (S.B.)
- Correspondence: ; Tel: +7-929-651-6331
| | - Tatiana Obolkina
- Laboratory of Composite Ceramic Materials, A.A. Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences, 119334 Moscow, Russia; (T.O.); (S.S.); (P.P.); (D.T.); (O.A.); (A.K.); (V.K.); (S.B.)
| | - Sergey Smirnov
- Laboratory of Composite Ceramic Materials, A.A. Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences, 119334 Moscow, Russia; (T.O.); (S.S.); (P.P.); (D.T.); (O.A.); (A.K.); (V.K.); (S.B.)
| | - Pavel Protsenko
- Laboratory of Composite Ceramic Materials, A.A. Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences, 119334 Moscow, Russia; (T.O.); (S.S.); (P.P.); (D.T.); (O.A.); (A.K.); (V.K.); (S.B.)
- Department of Chemistry, M.V. Lomonosov Moscow State University, 119991 Moscow, Russia
| | - Dmitriy Titov
- Laboratory of Composite Ceramic Materials, A.A. Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences, 119334 Moscow, Russia; (T.O.); (S.S.); (P.P.); (D.T.); (O.A.); (A.K.); (V.K.); (S.B.)
| | - Olga Antonova
- Laboratory of Composite Ceramic Materials, A.A. Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences, 119334 Moscow, Russia; (T.O.); (S.S.); (P.P.); (D.T.); (O.A.); (A.K.); (V.K.); (S.B.)
| | - Anatoliy Konovalov
- Laboratory of Composite Ceramic Materials, A.A. Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences, 119334 Moscow, Russia; (T.O.); (S.S.); (P.P.); (D.T.); (O.A.); (A.K.); (V.K.); (S.B.)
| | - Egor Kudryavtsev
- Joint Research Center, Technology and Materials, Belgorod State National Research University, 308015 Belgorod, Russia;
| | - Irina Sviridova
- Laboratory of Prediction of Cancer Treatment Response, National Medical Research Radiological Center of the Ministry of Health of the Russian Federation, 125284 Moscow, Russia; (I.S.); (V.K.); (N.S.)
| | - Valentina Kirsanova
- Laboratory of Prediction of Cancer Treatment Response, National Medical Research Radiological Center of the Ministry of Health of the Russian Federation, 125284 Moscow, Russia; (I.S.); (V.K.); (N.S.)
| | - Natalia Sergeeva
- Laboratory of Prediction of Cancer Treatment Response, National Medical Research Radiological Center of the Ministry of Health of the Russian Federation, 125284 Moscow, Russia; (I.S.); (V.K.); (N.S.)
| | - Vladimir Komlev
- Laboratory of Composite Ceramic Materials, A.A. Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences, 119334 Moscow, Russia; (T.O.); (S.S.); (P.P.); (D.T.); (O.A.); (A.K.); (V.K.); (S.B.)
| | - Sergey Barinov
- Laboratory of Composite Ceramic Materials, A.A. Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences, 119334 Moscow, Russia; (T.O.); (S.S.); (P.P.); (D.T.); (O.A.); (A.K.); (V.K.); (S.B.)
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22
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Nadtochenko V, Kostrov A, Titov A, Aybush A, Gostev F, Shelaev I, Shepel D, Antonova O, Kochev S, Kabachii Y. Multiexponential dynamics of Mn2+(3d5) excitation in manganese doped ZnCdS quantum dots: Stimulated emission band in femtosecond transient spectra reveals ultrafast nonradiative energy transfer to Mn2+(3d5). Chem Phys Lett 2020. [DOI: 10.1016/j.cplett.2020.137160] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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23
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Antonova O, Rukova B, Mladenov B, Rangelov S, Hammoudeh Z, Nesheva D, Staneva R, Spasova V, Grigorov E, Hadjidekova S, Slavov C, Toncheva D. Expression profiling of muscle invasive and non-invasive bladder tumors for biomarkers identification related to drug resistance, sensitivity and tumor progression. BIOTECHNOL BIOTEC EQ 2020. [DOI: 10.1080/13102818.2020.1778528] [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: 10/24/2022] Open
Affiliation(s)
- Olga Antonova
- Department of Medical Genetics, Faculty of Medicine, Medical University of Sofia, Sofia, Bulgaria
| | - Blaga Rukova
- Department of Medical Genetics, Faculty of Medicine, Medical University of Sofia, Sofia, Bulgaria
| | - Boris Mladenov
- Department of Urology, UMBALSM “N. I. Pirogov,” Sofia, Bulgaria
| | - Simeon Rangelov
- Department of Urology, University Hospital “Tsaritsa Yoanna,” Sofia, Bulgaria
| | - Zora Hammoudeh
- Department of Medical Genetics, Faculty of Medicine, Medical University of Sofia, Sofia, Bulgaria
| | - Desislava Nesheva
- Department of Medical Genetics, Faculty of Medicine, Medical University of Sofia, Sofia, Bulgaria
| | - Rada Staneva
- Department of Medical Genetics, Faculty of Medicine, Medical University of Sofia, Sofia, Bulgaria
| | - Viktoria Spasova
- Department of Medical Genetics, Faculty of Medicine, Medical University of Sofia, Sofia, Bulgaria
| | - Evgeni Grigorov
- Department of Pharmaceutical Sciences and Pharmaceutical Management, Faculty of Pharmacy, Medical University of Varna “Prof. Dr. Paraskev Stoyanov,” Varna, Bulgaria
| | - Savina Hadjidekova
- Department of Medical Genetics, Faculty of Medicine, Medical University of Sofia, Sofia, Bulgaria
| | - Chavdar Slavov
- Department of Urology, University Hospital “Tsaritsa Yoanna,” Sofia, Bulgaria
| | - Draga Toncheva
- Department of Medical Genetics, Faculty of Medicine, Medical University of Sofia, Sofia, Bulgaria
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24
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Pochynok K, Antonova O, Barehamian S, Tykhomyrova G, Severinova O. THE CHALLENGES OF LEGAL REGULATION OF PUBLIC PROCUREMENT OF MEDICINES AND MEDICAL PRODUCTS IN UKRAINE. Georgian Med News 2019:135-140. [PMID: 31889721] [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: 06/10/2023]
Abstract
The purpose of this article is to investigate the requirements of the current statutory acts about the organization and conduct of public procurement of medicines and medical products, to identify the main problems in this area and ways to eliminate. Materials for the study of public procurement are: national legislation, the Government Procurement Agreement (GPA) WTO, etc. Materials for research in the field of medicines and medical products: "Convention for the Protection of Human Rights and Fundamental Freedoms", "The Concept of Reforming Procurement of Medicines and Medical Devices, Ancillary Products and Other Medical Products", Laws of Ukraine "Fundamentals of the legislation of Ukraine on health care", "On Medicines", etc. The topic of the study, its purpose and objectives, the nature of the object and the subject determined its methodological basis. In the article general theoretical methods of research have been used to highlight the current problems of legal regulation of public procurement of medicines and medical products. The specific scientific methods made it possible to perform a comparative analysis of public procurement in Ukraine and abroad and emphasized problems of laws and regulations harmonization. The statistical method made it possible to reach conclusions due to the appropriation of public funds for the purchase of medicines and medical products by specialized organizations. The main reason for the unproductive and unfeasible use of budget funds by the Ministry of Health of Ukraine is the transfer of the total amount of state funds to the accounts of international specialized organizations. Ukraine should urgently adopt the relevant law "On medical devices" that would adjust legal relations, connected to circulation, state supervision (control) of quality, including the safety and effectiveness of medical products, defining the rights, obligations and responsibilities of business entities, as well as subjects of organizational and economic authority in this area.
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Affiliation(s)
- K Pochynok
- 1University of the State Fiscal Service of Ukraine, Irpin; Ukraine
| | - O Antonova
- 2National Academy of Public Administration under the President of Ukraine, Kyiv, Ukraine
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25
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Lev I, Toker IA, Mor Y, Nitzan A, Weintraub G, Antonova O, Bhonkar O, Ben Shushan I, Seroussi U, Claycomb JM, Anava S, Gingold H, Zaidel-Bar R, Rechavi O. Germ Granules Govern Small RNA Inheritance. Curr Biol 2019; 29:2880-2891.e4. [PMID: 31378614 PMCID: PMC6739422 DOI: 10.1016/j.cub.2019.07.054] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2019] [Revised: 07/01/2019] [Accepted: 07/17/2019] [Indexed: 02/04/2023]
Abstract
In C. elegans nematodes, components of liquid-like germ granules were shown to be required for transgenerational small RNA inheritance. Surprisingly, we show here that mutants with defective germ granules can nevertheless inherit potent small RNA-based silencing responses, but some of the mutants lose this ability after many generations of homozygosity. Animals mutated in pptr-1, which is required for stabilization of P granules in the early embryo, display extraordinarily strong heritable RNAi responses, lasting for tens of generations. Intriguingly, the RNAi capacity of descendants derived from mutants defective in the core germ granule proteins MEG-3 and MEG-4 is determined by the genotype of the ancestors and changes transgenerationally. Further, whether the meg-3/4 mutant alleles were present in the paternal or maternal lineages leads to different transgenerational consequences. Small RNA inheritance, rather than maternal contribution of the germ granules themselves, mediates the transgenerational defects in RNAi of meg-3/4 mutants and their progeny. Accordingly, germ granule defects lead to heritable genome-wide mis-expression of endogenous small RNAs. Upon disruption of germ granules, hrde-1 mutants can inherit RNAi, although HRDE-1 was previously thought to be absolutely required for RNAi inheritance. We propose that germ granules sort and shape the RNA pool, and that small RNA inheritance maintains this activity for multiple generations. Disrupting germ granules leads to deviations from Mendelian inheritance The gene silencing capacity of germ granule mutants changes transgenerationally Paternal and maternal lineages transmit distinct germ granule-dependent small RNAs Ancestral germ granules determine the small RNA pools of future generations
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Affiliation(s)
- Itamar Lev
- Department of Neurobiology, Wise Faculty of Life Sciences and Sagol School of Neuroscience, Tel Aviv University, Tel Aviv 69978, Israel.
| | - Itai Antoine Toker
- Department of Neurobiology, Wise Faculty of Life Sciences and Sagol School of Neuroscience, Tel Aviv University, Tel Aviv 69978, Israel.
| | - Yael Mor
- Department of Neurobiology, Wise Faculty of Life Sciences and Sagol School of Neuroscience, Tel Aviv University, Tel Aviv 69978, Israel.
| | - Anat Nitzan
- Department of Cell and Developmental Biology, Sackler School of Medicine, Tel Aviv University, Tel Aviv 69978, Israel
| | - Guy Weintraub
- Department of Neurobiology, Wise Faculty of Life Sciences and Sagol School of Neuroscience, Tel Aviv University, Tel Aviv 69978, Israel
| | - Olga Antonova
- Department of Neurobiology, Wise Faculty of Life Sciences and Sagol School of Neuroscience, Tel Aviv University, Tel Aviv 69978, Israel
| | - Ornit Bhonkar
- Department of Neurobiology, Wise Faculty of Life Sciences and Sagol School of Neuroscience, Tel Aviv University, Tel Aviv 69978, Israel
| | - Itay Ben Shushan
- Department of Neurobiology, Wise Faculty of Life Sciences and Sagol School of Neuroscience, Tel Aviv University, Tel Aviv 69978, Israel
| | - Uri Seroussi
- Department of Molecular Genetics, University of Toronto, Toronto, ON M5G 1M1, Canada
| | - Julie M Claycomb
- Department of Molecular Genetics, University of Toronto, Toronto, ON M5G 1M1, Canada
| | - Sarit Anava
- Department of Neurobiology, Wise Faculty of Life Sciences and Sagol School of Neuroscience, Tel Aviv University, Tel Aviv 69978, Israel
| | - Hila Gingold
- Department of Neurobiology, Wise Faculty of Life Sciences and Sagol School of Neuroscience, Tel Aviv University, Tel Aviv 69978, Israel
| | - Ronen Zaidel-Bar
- Department of Cell and Developmental Biology, Sackler School of Medicine, Tel Aviv University, Tel Aviv 69978, Israel
| | - Oded Rechavi
- Department of Neurobiology, Wise Faculty of Life Sciences and Sagol School of Neuroscience, Tel Aviv University, Tel Aviv 69978, Israel.
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26
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Posner R, Toker IA, Antonova O, Star E, Anava S, Azmon E, Hendricks M, Bracha S, Gingold H, Rechavi O. Neuronal Small RNAs Control Behavior Transgenerationally. Cell 2019; 177:1814-1826.e15. [PMID: 31178120 PMCID: PMC6579485 DOI: 10.1016/j.cell.2019.04.029] [Citation(s) in RCA: 110] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2018] [Revised: 02/18/2019] [Accepted: 04/13/2019] [Indexed: 12/21/2022]
Abstract
It is unknown whether the activity of the nervous system can be inherited. In Caenorhabditis elegans nematodes, parental responses can transmit heritable small RNAs that regulate gene expression transgenerationally. In this study, we show that a neuronal process can impact the next generations. Neurons-specific synthesis of RDE-4-dependent small RNAs regulates germline amplified endogenous small interfering RNAs (siRNAs) and germline gene expression for multiple generations. Further, the production of small RNAs in neurons controls the chemotaxis behavior of the progeny for at least three generations via the germline Argonaute HRDE-1. Among the targets of these small RNAs, we identified the conserved gene saeg-2, which is transgenerationally downregulated in the germline. Silencing of saeg-2 following neuronal small RNA biogenesis is required for chemotaxis under stress. Thus, we propose a small-RNA-based mechanism for communication of neuronal processes transgenerationally. C. elegans neuronal small RNAs are characterized by RNA sequencing RDE-4-dependent neuronal endogenous small RNAs communicate with the germline Germline HRDE-1 mediates transgenerational regulation by neuronal small RNAs Neuronal small RNAs regulate germline genes to control behavior transgenerationally
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Affiliation(s)
- Rachel Posner
- Department of Neurobiology, Wise Faculty of Life Sciences and Sagol School of Neuroscience, Tel Aviv University, Tel Aviv 6997801, Israel
| | - Itai Antoine Toker
- Department of Neurobiology, Wise Faculty of Life Sciences and Sagol School of Neuroscience, Tel Aviv University, Tel Aviv 6997801, Israel
| | - Olga Antonova
- Department of Neurobiology, Wise Faculty of Life Sciences and Sagol School of Neuroscience, Tel Aviv University, Tel Aviv 6997801, Israel
| | - Ekaterina Star
- Department of Neurobiology, Wise Faculty of Life Sciences and Sagol School of Neuroscience, Tel Aviv University, Tel Aviv 6997801, Israel
| | - Sarit Anava
- Department of Neurobiology, Wise Faculty of Life Sciences and Sagol School of Neuroscience, Tel Aviv University, Tel Aviv 6997801, Israel
| | - Eran Azmon
- Department of Neurobiology, Wise Faculty of Life Sciences and Sagol School of Neuroscience, Tel Aviv University, Tel Aviv 6997801, Israel
| | - Michael Hendricks
- Department of Biology, McGill University, Montreal, QC H3A 1B1, Canada
| | - Shahar Bracha
- Department of Neurobiology, Wise Faculty of Life Sciences and Sagol School of Neuroscience, Tel Aviv University, Tel Aviv 6997801, Israel
| | - Hila Gingold
- Department of Neurobiology, Wise Faculty of Life Sciences and Sagol School of Neuroscience, Tel Aviv University, Tel Aviv 6997801, Israel
| | - Oded Rechavi
- Department of Neurobiology, Wise Faculty of Life Sciences and Sagol School of Neuroscience, Tel Aviv University, Tel Aviv 6997801, Israel.
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27
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Modi A, Nesheva D, Sarno S, Vai S, Karachanak-Yankova S, Luiselli D, Pilli E, Lari M, Vergata C, Yordanov Y, Dimitrova D, Kalcev P, Staneva R, Antonova O, Hadjidekova S, Galabov A, Toncheva D, Caramelli D. Ancient human mitochondrial genomes from Bronze Age Bulgaria: new insights into the genetic history of Thracians. Sci Rep 2019; 9:5412. [PMID: 30931994 PMCID: PMC6443937 DOI: 10.1038/s41598-019-41945-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Accepted: 03/20/2019] [Indexed: 11/17/2022] Open
Abstract
One of the best documented Indo-European civilizations that inhabited Bulgaria is the Thracians, who lasted for more than five millennia and whose origin and relationships with other past and present-day populations are debated among researchers. Here we report 25 new complete mitochondrial genomes of ancient individuals coming from three necropolises located in different regions of Bulgaria – Shekerdja mogila, Gabrova mogila and Bereketska mogila – dated to II-III millennium BC. The identified mtDNA haplogroup composition reflects the mitochondrial variability of Western Eurasia. In particular, within the ancient Eurasian genetic landscape, Thracians locate in an intermediate position between Early Neolithic farmers and Late Neolithic-Bronze Age steppe pastoralists, supporting the scenario that the Balkan region has been a link between Eastern Europe and the Mediterranean since the prehistoric time. Spatial Principal Component Analysis (sPCA) performed on Thracian and modern mtDNA sequences, confirms the pattern highlighted on ancient populations, overall indicating that the maternal gene pool of Thracians reflects their central geographical position at the gateway of Europe.
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Affiliation(s)
- Alessandra Modi
- Department of Biology, University of Florence, Florence, Italy
| | - Desislava Nesheva
- Department of Medical Genetics, Medical University of Sofia, Sofia, Bulgaria
| | - Stefania Sarno
- Department of Biological, Geological and Environmental Sciences, University of Bologna, Bologna, Italy
| | - Stefania Vai
- Department of Biology, University of Florence, Florence, Italy
| | | | - Donata Luiselli
- Department of Cultural Heritage, University of Bologna, Ravenna, Italy
| | - Elena Pilli
- Department of Biology, University of Florence, Florence, Italy
| | - Martina Lari
- Department of Biology, University of Florence, Florence, Italy
| | - Chiara Vergata
- Department of Biology, University of Florence, Florence, Italy
| | - Yordan Yordanov
- Institute of Experimental Morphology, Pathology and Anthropology with Museum, Bulgarian Academy of Sciences, Sofia, Bulgaria
| | | | - Petar Kalcev
- The Regional Historical Museum of Stara Zagora, Stara Zagora, Bulgaria
| | - Rada Staneva
- Department of Medical Genetics, Medical University of Sofia, Sofia, Bulgaria
| | - Olga Antonova
- Department of Medical Genetics, Medical University of Sofia, Sofia, Bulgaria
| | - Savina Hadjidekova
- Department of Medical Genetics, Medical University of Sofia, Sofia, Bulgaria
| | - Angel Galabov
- The Stephan Angeloff Institute of Microbiology, Bulgarian Academy of Sciences, Sofia, Bulgaria
| | - Draga Toncheva
- Department of Medical Genetics, Medical University of Sofia, Sofia, Bulgaria.
| | - David Caramelli
- Department of Biology, University of Florence, Florence, Italy.
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28
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Rakosy-Tican E, Lörincz-Besenyei E, Molnár I, Thieme R, Hartung F, Sprink T, Antonova O, Famelaer I, Angenon G, Aurori A. New Phenotypes of Potato Co-induced by Mismatch Repair Deficiency and Somatic Hybridization. Front Plant Sci 2019; 10:3. [PMID: 30723483 PMCID: PMC6349821 DOI: 10.3389/fpls.2019.00003] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2018] [Accepted: 01/04/2019] [Indexed: 06/01/2023]
Abstract
As plants are sessile they need a very efficient system for repairing damage done by external or internal mutagens to their DNA. Mismatch repair (MMR) is one of the systems that maintain genome integrity and prevent homeologous recombination. In all eukaryotes mismatches are recognized by evolutionary conserved MSH proteins often acting as heterodimers, the constant component of which is MSH2. Changes affecting the function of MSH2 gene may induce a 'mutator' phenotype and microsatellite instability (MSI), as is demonstrated in MSH2 knock-out and silenced lines of Arabidopsis thaliana. The goal of this study was to screen for 'mutator' phenotypes in somatic hybrids between potato cvs. 'Delikat' and 'Désirée' and MMR deficient Solanum chacoense transformed using antisense (AS) or dominant negative mutant (DN) AtMSH2 genes. The results demonstrate that first generation fusion hybrids have a range of morphological abnormalities caused by uniparental MMR deficiency; these mutant phenotypes include: dwarf or gigantic plants; bushiness; curled, small, large or abnormal leaves; a deterioration in chloroplast structure; small deep-purple tubers and early dehiscent flowers. Forty percent of the viable somatic hybrids planted in a greenhouse, (10 out of 25 genotypes) had mutant phenotypes accompanied by MSI. The majority of the hybrids with 'mutator' phenotypes cultured on media containing kanamycin developed roots so sustaining the presence of selectable marker gene nptII, from the initial constructs. Here for the first time, MMR deficiency combined with somatic hybridization, are used to induce new phenotypes in plants, which supports the role of MMR deficiency in increasing introgressions between two related species.
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Affiliation(s)
- Elena Rakosy-Tican
- Plant Genetic Engineering Group, Faculty of Biology and Geology, Babeş-Bolyai University, Cluj-Napoca, Romania
| | - Enikö Lörincz-Besenyei
- Plant Genetic Engineering Group, Faculty of Biology and Geology, Babeş-Bolyai University, Cluj-Napoca, Romania
- Institute for Biosafety in Plant Biotechnology, Julius Kühn-Institut, Quedlinburg, Germany
| | - Imola Molnár
- Plant Genetic Engineering Group, Faculty of Biology and Geology, Babeş-Bolyai University, Cluj-Napoca, Romania
| | - Ramona Thieme
- Institute for Breeding Research on Agricultural Crops, Julius Kühn-Institut, Quedlinburg, Germany
| | - Frank Hartung
- Institute for Biosafety in Plant Biotechnology, Julius Kühn-Institut, Quedlinburg, Germany
| | - Thorben Sprink
- Institute for Biosafety in Plant Biotechnology, Julius Kühn-Institut, Quedlinburg, Germany
| | - Olga Antonova
- Department of Plant Biotechnology, N.I. Vavilov Institute of Plant Industry, St. Petersburg, Russia
| | - Ivan Famelaer
- Laboratory of Plant Genetics, Vrije Universiteit Brussel, Brussels, Belgium
| | - Geert Angenon
- Laboratory of Plant Genetics, Vrije Universiteit Brussel, Brussels, Belgium
| | - Adriana Aurori
- Plant Genetic Engineering Group, Faculty of Biology and Geology, Babeş-Bolyai University, Cluj-Napoca, Romania
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Ganev M, Balabanski L, Serbezov D, Karachanak-Yankova S, Vazharova R, Nesheva D, Hammoudeh Z, Nikolova D, Antonova O, Staneva R, Mihaylova M, Damyanova V, Hadjidekova S, Toncheva D. Prioritization of genetic variants predisposing to coronary heart disease in the Bulgarian population using centenarian exomes. BIOTECHNOL BIOTEC EQ 2019. [DOI: 10.1080/13102818.2019.1700164] [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: 10/25/2022] Open
Affiliation(s)
- Mihail Ganev
- Department of Medical Genetics, Faculty of Medicine, Medical University of Sofia, Sofia, Bulgaria
| | - Lubomir Balabanski
- Department of Medical Genetics, Faculty of Medicine, Medical University of Sofia, Sofia, Bulgaria
- Genome laboratory, SBALGAR Clinic Malinov, Sofia, Bulgaria
| | - Dimitar Serbezov
- Department of Medical Genetics, Faculty of Medicine, Medical University of Sofia, Sofia, Bulgaria
| | - Sena Karachanak-Yankova
- Department of Medical Genetics, Faculty of Medicine, Medical University of Sofia, Sofia, Bulgaria
- Department of Genetics, Faculty of Biology, Sofia University St Kliment Ohridski, Sofia, Bulgaria
| | - Radoslava Vazharova
- Genome laboratory, SBALGAR Clinic Malinov, Sofia, Bulgaria
- Department of Biology, Medical Genetics and Microbiology, Faculty of Medicine, Sofia University St Kliment Ohridski, Sofia, Bulgaria
| | - Desislava Nesheva
- Department of Medical Genetics, Faculty of Medicine, Medical University of Sofia, Sofia, Bulgaria
| | - Zora Hammoudeh
- Department of Medical Genetics, Faculty of Medicine, Medical University of Sofia, Sofia, Bulgaria
| | - Dragomira Nikolova
- Department of Medical Genetics, Faculty of Medicine, Medical University of Sofia, Sofia, Bulgaria
| | - Olga Antonova
- Department of Medical Genetics, Faculty of Medicine, Medical University of Sofia, Sofia, Bulgaria
| | - Rada Staneva
- Department of Medical Genetics, Faculty of Medicine, Medical University of Sofia, Sofia, Bulgaria
| | - Marta Mihaylova
- Department of Medical Genetics, Faculty of Medicine, Medical University of Sofia, Sofia, Bulgaria
| | - Vera Damyanova
- Department of Medical Genetics, Faculty of Medicine, Medical University of Sofia, Sofia, Bulgaria
| | - Savina Hadjidekova
- Department of Medical Genetics, Faculty of Medicine, Medical University of Sofia, Sofia, Bulgaria
| | - Draga Toncheva
- Department of Medical Genetics, Faculty of Medicine, Medical University of Sofia, Sofia, Bulgaria
- Bulgarian Academy of Sciences (BAS), Sofia, Bulgaria
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Malyugin B, Anisimova N, Antonova O, Arbisser LB. Simultaneous pupil expansion and displacement for femtosecond laser-assisted cataract surgery in patients with lens ectopia. J Cataract Refract Surg 2018; 44:262-265. [PMID: 29605281 DOI: 10.1016/j.jcrs.2018.01.014] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2017] [Revised: 01/30/2018] [Accepted: 01/31/2018] [Indexed: 11/26/2022]
Abstract
We describe a new approach for cataract surgery in ectopia lentis associated with an inadequately dilated pupil. A Malyugin ring 2.0 is first positioned in the eye to expand the pupil. One of the ring coils is then temporarily sutured to the limbal area with 10-0 polypropylene. With this maneuver, the pupillary expansion ring is placed in alignment with the center of the ectopic lens. Femtosecond laser anterior capsulotomy and lens fragmentation is then performed. Next, the temporary suture is released, a capsular hook(s) is placed to support the lens, and the lens is emulsified. A modified capsular tension ring is then inserted and sutured to the ciliary sulcus to center the capsular bag and the intraocular lens is implanted. This new technique for patients with insufficiently dilated pupils associated with ectopia lentis has the potential to improve surgical results and minimize complications in selected cases.
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Affiliation(s)
- Boris Malyugin
- From the S. Fyodorov Eye Microsurgery Institution (Malyugin, Anisimova, Antonova), Moscow, Russia; the John A. Moran Eye Center (Arbisser), University of Utah, Salt Lake City, Utah, USA.
| | - Natalia Anisimova
- From the S. Fyodorov Eye Microsurgery Institution (Malyugin, Anisimova, Antonova), Moscow, Russia; the John A. Moran Eye Center (Arbisser), University of Utah, Salt Lake City, Utah, USA
| | - Olga Antonova
- From the S. Fyodorov Eye Microsurgery Institution (Malyugin, Anisimova, Antonova), Moscow, Russia; the John A. Moran Eye Center (Arbisser), University of Utah, Salt Lake City, Utah, USA
| | - Lisa B Arbisser
- From the S. Fyodorov Eye Microsurgery Institution (Malyugin, Anisimova, Antonova), Moscow, Russia; the John A. Moran Eye Center (Arbisser), University of Utah, Salt Lake City, Utah, USA
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Antonova O, Toncheva D, Grigorov E. Bladder cancer risk from the perspective of genetic polymorphisms in the carcinogen metabolizing enzymes. J BUON 2015; 20:1397-1406. [PMID: 26854433] [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: 06/05/2023]
Abstract
Urinary bladder cancer is a socially significant healthcare problem. A diverse array of aromatic and heterocyclic amines, derived from the chemical and transport industry, diet, and cigarette smoke are considered carcinogens for the bladder. To exert their carcinogenic effect and to initiate the carcinogenic response, the arylamines require a metabolic activation by the host enzymes to chemically reactive compounds. The aim of this article was to review the latest and basic research developments on the role of the polymorphisms in the carcinogen metabolizing enzymes N-acetyltransferase (NAT), Glutathione S-transferases (GST), and Soluble sulfotransferases (SULT), with emphasis on the susceptibility to urinary bladder cancer. A PubMed search was conducted to identify original and review articles containing information about these polymophic variants in different populations and according to their prevalence in bladder cancer patients. We noticed that some genotypes were found to be predisposing and some protective for bladder cancer development. The NAT2 slow genotype, together with GSTM1 null genotype facilitated the development of bladder cancer in almost all ethnic groups. The 213His allele of the SULT1A1 gene which is associated with lower enzyme activity and decreased mutagen activation was reported to protect from bladder cancer in almost all studies.
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Affiliation(s)
- Olga Antonova
- Department of Medical Genetics, Medical University-Sofia, Sofia, Bulgaria
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Antonova O, Yossifova L, Staneva R, Stevanovic S, Dolashka P, Toncheva D. Changes in the gene expression profile of the bladder cancer cell lines after treatment with Helix lucorum and Rapana venosa hemocyanin. J BUON 2015; 20:180-187. [PMID: 25778314] [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: 06/04/2023]
Abstract
PURPOSE The purpose of this study was to elucidate the mechanism of action of the Helix lucorum hemocyanin (HlH), b-HlH-h, and RvH2-g hemocyanins as potential agents against bladder cancer. METHODS We evaluated the viability of 647-V, T-24, and CAL-29 bladder cancer cell lines after treatment with the tested hemocyanins. The cell viability was measured at 72 hrs with MTT and WST-1 assays. Acridine orange/propidium iodide double staining was used to discriminate between apoptotic and necrotic cells. Gene expression profiling of the 168 genes from human inflammatory cytokines and signal transduction pathways were performed on the tumor cells before and after hemocyanins' treatment. RESULTS The results showed decreased survival of cancer cells in the presence of HlH and two functional units: b-HlH-h and RvH2-g. Acridine orange/propidium iodide double staining revealed that the decreased viability was due to apoptosis. The gene expression data showed upregulation of genes involved in the apoptosis as well as of the immune system activation, and downregulation of the CCL2, CCL17, CCL21, CXCL1, and ABCF1 genes. CONCLUSIONS The present study is the first to report gene expression in human cells under the influence of hemocyanins. The mechanism of antitumor activity of the HlH, b-HlH-h, and RvH2-g hemocyanins includes induction of apoptosis. In addition to the antiproliferative effect, downregulation of the genes with metastatic potential was observed. Together with the already known immunogenic effect, these findings support further studies on hemocyanins as potential therapeutic agents against bladder cancer.
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Affiliation(s)
- Olga Antonova
- Department of Medical Genetics, Medical University, Sofia, Bulgaria
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Antonova O, Dolashka P, Toncheva D, Rammensee HG, Floetenmeyer M, Stevanovic S. In vitro antiproliferative effect of Helix aspersa hemocyanin on multiple malignant cell lines. ACTA ACUST UNITED AC 2014; 69:325-34. [PMID: 25265853 DOI: 10.5560/znc.2013-0148] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
As an extension of our studies on the antitumour properties of various hemocyanins, we sought to compare the antiproliferative effects of hemocyanins derived from two snail species: Helix lucorum (HIH) and Helix aspersa (HaH). This is the first report on the antitumour effects of HaH. We hypothesized that HaH has antitumour effects not only against bladder cancer, as previously shown with other hemocyanins, but also on other cancer cell lines. The antiproliferative properties of the mentioned hemocyanins were investigated in vitro on the following human cell lines: bladder cancer (CAL-29 and T-24), ovarian cancer (FraWü), acute monocytic leukemia (THP-1), prostate cancer (DU-145), glioma cancer (LN-18), and Burkitt's lymphoma (Daudi). The properties of HaH were compared to those of HlH, keyhole limpet hemocyanin (KLH), and two positive controls (doxorubicin and mitomycin C). An antiproliferative effect of the total molecule and one structural subunit of HaH, betac-HaH, against both bladder cancer cell lines, T-24 and CAL-29, was observed. The cytotoxic effect of HaH ranged between 15% and 60% among the other tested cell lines. The endotoxin contamination did not affect the efficacy of HaH. Therefore, HlH and HaH could be appropriate for more detailed investigations of their use as antitumour agents for the studied cancers.
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Oliveri P, Fortunato AE, Petrone L, Ishikawa-Fujiwara T, Kobayashi Y, Todo T, Antonova O, Arboleda E, Zantke J, Tessmar-Raible K, Falciatore A. The Cryptochrome/Photolyase Family in aquatic organisms. Mar Genomics 2014; 14:23-37. [DOI: 10.1016/j.margen.2014.02.001] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2013] [Revised: 02/05/2014] [Accepted: 02/10/2014] [Indexed: 01/12/2023]
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Staneva R, Rukova B, Hadjidekova S, Nesheva D, Antonova O, Dimitrov P, Simeonov V, Stamenov G, Cukuranovic R, Cukuranovic J, Stefanovic V, Polenakovic M, Dimova I, Hlushchuk R, Djonov V, Galabov A, Toncheva D. Whole genome methylation array analysis reveals new aspects in Balkan endemic nephropathy etiology. BMC Nephrol 2013; 14:225. [PMID: 24131581 PMCID: PMC3852817 DOI: 10.1186/1471-2369-14-225] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2013] [Accepted: 10/11/2013] [Indexed: 11/17/2022] Open
Abstract
Background Balkan endemic nephropathy (BEN) represents a chronic progressive interstitial nephritis in striking correlation with uroepithelial tumours of the upper urinary tract. The disease has endemic distribution in the Danube river regions in several Balkan countries. DNA methylation is a primary epigenetic modification that is involved in major processes such as cancer, genomic imprinting, gene silencing, etc. The significance of CpG island methylation status in normal development, cell differentiation and gene expression is widely recognized, although still stays poorly understood. Methods We performed whole genome DNA methylation array analysis on DNA pool samples from peripheral blood from 159 affected individuals and 170 healthy individuals. This technique allowed us to determine the methylation status of 27 627 CpG islands throughout the whole genome in healthy controls and BEN patients. Thus we obtained the methylation profile of BEN patients from Bulgarian and Serbian endemic regions. Results Using specifically developed software we compared the methylation profiles of BEN patients and corresponding controls and revealed the differently methylated regions. We then compared the DMRs between all patient-control pairs to determine common changes in the epigenetic profiles. SEC61G, IL17RA, HDAC11 proved to be differently methylated throughout all patient-control pairs. The CpG islands of all 3 genes were hypomethylated compared to controls. This suggests that dysregulation of these genes involved in immunological response could be a common mechanism in BEN pathogenesis in both endemic regions and in both genders. Conclusion Our data propose a new hypothesis that immunologic dysregulation has a place in BEN etiopathogenesis.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Draga Toncheva
- Department of Medical Genetics, Medical University of Sofia, 1421 2Zdrave str, Sofia, Bulgaria.
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Vinokurov M, Ostrov V, Yurinskaya M, Garbuz D, Murashev A, Antonova O, Evgen’ev M. Recombinant human Hsp70 protects against lipoteichoic acid-induced inflammation manifestations at the cellular and organismal levels. Cell Stress Chaperones 2012; 17:89-101. [PMID: 21845530 PMCID: PMC3227847 DOI: 10.1007/s12192-011-0288-0] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2011] [Revised: 07/30/2011] [Accepted: 08/01/2011] [Indexed: 01/13/2023] Open
Abstract
It has been previously reported that pretreatment with exogenous heat shock protein 70 (Hsp70) is able to protect cells and animals from the deleterious effects of bacterial lipopolysaccharide (LPS) produced by Gram-negative bacteria. However, the effects of Hsp70 pretreatment on lipoteichoic acid (LTA) challenge resulted from Gram-positive bacteria infection have not been fully elucidated. In this study, we demonstrated that preconditioning with human recombinant Hsp70 ameliorates various manifestations of systematic inflammation, including reactive oxygen species, TNFα, and CD11b/CD18 adhesion receptor expression induction observed in different myeloid cells after LTA addition. Therefore, exogenous Hsp70 may provide a mechanism for controlling excessive inflammatory responses after macrophage activation. Furthermore, in a rat model of LTA-induced sepsis, we demonstrated that prophylactic administration of exogenous human Hsp70 significantly exacerbated numerous homeostatic and hemodynamic disturbances induced by LTA challenge and partially normalized the coagulation system and multiple biochemical blood parameters, including albumin and bilirubin concentrations, which were severely disturbed after LTA injections. Importantly, prophylactic intravenous injection of Hsp70 before LTA challenge significantly reduced mortality rates. Thus, exogenous mammalian Hsp70 may serve as a powerful cellular defense agent against the deleterious effects of bacterial pathogens, such as LTA and LPS. Taken together, our findings reveal novel functions of this protein and establish exogenous Hsp70 as a promising pharmacological agent for the prophylactic treatment of various types of sepsis.
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Affiliation(s)
- Maxim Vinokurov
- Institute of Cell Biophysics of RAS, Pushchino, Moscow Region, 142290 Russia
- Pushchino State University, Pushchino, Moscow Region, 142290 Russia
| | - Vladimir Ostrov
- Branch of Shemyakin & Ovchinnikov Institute of Bioorganic Chemistry of RAS, Pushchino, Moscow Region, 142290 Russia
| | - Marina Yurinskaya
- Institute of Cell Biophysics of RAS, Pushchino, Moscow Region, 142290 Russia
| | - David Garbuz
- Engelhardt Institute of Molecular Biology of RAS, Vavilova, 32, Moscow, 119991 Russia
| | - Arkady Murashev
- Branch of Shemyakin & Ovchinnikov Institute of Bioorganic Chemistry of RAS, Pushchino, Moscow Region, 142290 Russia
| | - Olga Antonova
- Institute of Cell Biophysics of RAS, Pushchino, Moscow Region, 142290 Russia
- Pushchino State University, Pushchino, Moscow Region, 142290 Russia
| | - Mikhail Evgen’ev
- Engelhardt Institute of Molecular Biology of RAS, Vavilova, 32, Moscow, 119991 Russia
- Institute of Cell Biophysics of RAS, Pushchino, Moscow Region, 142290 Russia
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Thieme R, Rakosy-Tican E, Nachtigall M, Schubert J, Hammann T, Antonova O, Gavrilenko T, Heimbach U, Thieme T. Characterization of the multiple resistance traits of somatic hybrids between Solanum cardiophyllum Lindl. and two commercial potato cultivars. Plant Cell Rep 2010; 29:1187-201. [PMID: 20703881 DOI: 10.1007/s00299-010-0905-x] [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] [Subscribe] [Scholar Register] [Received: 04/26/2010] [Revised: 06/25/2010] [Accepted: 07/22/2010] [Indexed: 05/11/2023]
Abstract
Interspecific somatic hybrids between commercial cultivars of potato Solanum tuberosum L. Agave and Delikat and the wild diploid species Solanum cardiophyllum Lindl. (cph) were produced by protoplast electrofusion. The hybrid nature of the regenerated plants was confirmed by flow cytometry, simple sequence repeat (SSR), amplified fragment length polymorphism (AFLP), microsatellite-anchored fragment length polymorphism (MFLP) markers and morphological analysis. Somatic hybrids were assessed for their resistance to Colorado potato beetle (CPB) using a laboratory bioassay, to Potato virus Y (PVY) by mechanical inoculation and field trials, and foliage blight in a greenhouse and by field trials. Twenty-four and 26 somatic hybrids of cph + cv. Agave or cph + cv. Delikat, respectively, showed no symptoms of infection with PVY, of which 3 and 12, respectively, were also resistant to foliage blight. One hybrid of cph + Agave performed best in CPB and PVY resistance tests. Of the somatic hybrids that were evaluated for their morphology and tuber yield in the field for 3 years, four did not differ significantly in tuber yield from the parental and standard cultivars. Progeny of hybrids was obtained by pollinating them with pollen from a cultivar, selfing or cross-pollination. The results confirm that protoplast electrofusion can be used to transfer the CPB, PVY and late blight resistance of cph into somatic hybrids. These resistant somatic hybrids can be used in pre-breeding studies, molecular characterization and for increasing the genetic diversity available for potato breeding by marker-assisted combinatorial introgression into the potato gene pool.
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Affiliation(s)
- Ramona Thieme
- Julius Kühn Institute, Federal Research Centre for Cultivated Plants, Institute for Breeding Research on Agricultural Crops, Erwin-Baur-Str 27, 06484 Quedlinburg, Germany.
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Thieme R, Rakosy-Tican E, Gavrilenko T, Antonova O, Schubert J, Nachtigall M, Heimbach U, Thieme T. Novel somatic hybrids (Solanum tuberosum L.+Solanum tarnii) and their fertile BC1 progenies express extreme resistance to potato virus Y and late blight. Theor Appl Genet 2008; 116:691-700. [PMID: 18202839 DOI: 10.1007/s00122-007-0702-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2007] [Accepted: 12/13/2007] [Indexed: 05/11/2023]
Abstract
Solanum tarnii, a wild diploid, tuber-bearing Mexican species belonging to the series Pinnatisecta is highly resistant to Potato virus Y (PVY) and Colorado potato beetle and shows a strong hypersensitive reaction to Phytophthora infestans. Therefore, it could be a potential source of resistance to pathogens for potato breeders. S. tarnii (2n=2x=24) is reproductively isolated from tetraploid Solanum tuberosum and hence difficult to include in potato breeding programmes. In this study, interspecific somatic hybrids were produced for the first time by protoplast electrofusion of the cells of potato cv. Delikat (Solanum tuberosum L.) and Solanum tarnii. The hybrid nature of the regenerants was confirmed by simple sequence repeat (SSR) and amplified fragment length polymorphism (AFLP) markers and by morphological analysis and flow cytometry. Selected somatic hybrids were successfully backcrossed with cv. Delikat. Parental lines, primary somatic hybrids and BC1 progeny were assessed for resistance to PVY by mechanical inoculation, grafting and exposure to viruliferous aphid vectors in the field, and resistance to late blight (P. infestans) by detached leaflet and whole tuber tests. The somatic hybrids showed no symptoms of viral infection and most of them displayed high levels of resistance to foliage blight. The BC1 progenies were highly resistant to PVY and a few were resistant to foliage blight. Selected hybrids and BC1 clones were evaluated in the field for tuber quality and tuber yield. Some BC1 clones produced yields of good quality tubers. The results confirm that both the resistance to PVY and to late blight of S. tarnii is expressed in somatic hybrids, and PVY resistance is transferred to BC1 progeny, whereas blight resistance is harder to transfer. Somatic hybridization again proved to be a valuable tool for producing pre-breeding material with increased genetic diversity.
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Affiliation(s)
- Ramona Thieme
- Julius Kuehn Institute, Federal Research Centre for Cultivated Plants, Institute for Breeding Research on Agricultural Crops, Erwin-Baur-Str. 27, 06484, Quedlinburg, Germany.
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Antonova O, Brui B, Gorbunova T, Nikitina S. [The demographic situation in the Russian Federation during the structural transition associated with perestroika and the subsequent economic stabilization]. Vopros Stat 2002:53-6. [PMID: 12348413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/26/2023]
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Darby K, Eyre HJ, Lapsys N, Copeland NG, Gilbert DJ, Couzens M, Antonova O, Sutherland GR, Jenkins NA, Herzog H. Assignment of the Y4 receptor gene (PPYR1) to human chromosome 10q11.2 and mouse chromosome 14. Genomics 1997; 46:513-5. [PMID: 9441761 DOI: 10.1006/geno.1997.5071] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [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: 02/05/2023]
Abstract
The human and mouse genes for the neuropeptide Y4 receptor have been isolated, sequenced, and shown to contain no introns within the coding region of the gene. Nonisotopic in situ hybridization and interspecific mouse backcross mapping have localized the genes to human chromosome 10q11.2 and mouse chromosome 14. Five nucleotide variants, which do not alter the protein sequence, have been identified within the coding region of the human receptor gene. The human Y4 subtype is most closely related to the Y1-receptor subtype (42%), suggesting that it evolved from an ancestral Y1-like receptor via an RNA-mediated transpositional event.
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Affiliation(s)
- K Darby
- Garvan Institute of Medical Research, Neurobiology Program, St. Vincent's Hospital, Darlinghurst Sydney, New South Wales, Australia
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Jäckel M, Witt C, Antonova O, Curdt I, Labeit S, Jockusch H. Deletion in the Z-line region of the titin gene in a baby hamster kidney cell line, BHK-21-Bi. FEBS Lett 1997; 408:21-4. [PMID: 9180260 DOI: 10.1016/s0014-5793(97)00381-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [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: 02/04/2023]
Abstract
The gene for titin, a 4MDa myofibrillar protein, was analysed in golden hamster DNAs from different sources, using human cDNA probes and PCR. In the DNA from the BHK-21-Bi subline of baby hamster kidney cells, extended sequences coding for Z-line associated domains were missing, indicating a deletion that renders titin non-functional. These sequences were present in the original BHK-21 line and in hamster DNAs. Our finding shows that, due to the absence of selective pressure on a gene's function, genomic deterioration can occur in a permanent cell line and can lead to a loss of overlapping DNA stretches in both autosomes.
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Affiliation(s)
- M Jäckel
- Developmental Biology Unit, University of Bielefeld, Germany
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