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Rumiana Bakalova

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Rumiana Bakalova; Ichio Aoki; Zhivko Zhelev; Tsuneo Saga
Tissue redox activity as a hallmark of carcinogenesis: from early to terminal stages of cancer.
Zhivko Zhelev; Ichio Aoki; Rumiana Bakalova; Veselina Gadjeva; Biliana Nikolova; Tsuneo Saga
Tissue redox activity as a sensing platform for imaging of cancer based on nitroxide redox cycle.
Biliana Nikolova; Tsuneo Saga; Zhivko Zhelev; Ichio Aoki; Rumiana Bakalova; Borislav Dimitrov; Anelia Kostadinova; Iana Tsoneva
Fluorescent imaging for assessment of the effect of combined application of electroporation and rifampicin on HaCaT cells as a new therapeutic approach for psoriasis.

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All Publications

2013: Rumiana Bakalova; Ichio Aoki; Zhivko Zhelev; Tsuneo Saga
Tissue redox activity as a hallmark of carcinogenesis: from early to terminal stages of cancer.
Clinical cancer research : an official journal of the American Association for Cancer Research 2013;19(9):2503-17.
2013: Zhivko Zhelev; Ichio Aoki; Rumiana Bakalova; Veselina Gadjeva; Biliana Nikolova; Tsuneo Saga
Tissue redox activity as a sensing platform for imaging of cancer based on nitroxide redox cycle.
European journal of cancer (Oxford, England : 1990) 2013;49(6):1467-78.
2013: Biliana Nikolova; Tsuneo Saga; Zhivko Zhelev; Ichio Aoki; Rumiana Bakalova; Borislav Dimitrov; Anelia Kostadinova; Iana Tsoneva
Fluorescent imaging for assessment of the effect of combined application of electroporation and rifampicin on HaCaT cells as a new therapeutic approach for psoriasis.
Sensors (Basel, Switzerland) 2013;13(3):3625-34.
2012: Rumiana Bakalova; Zhivko Zhelev; Lubomir Spasov
Nilotinib versus imatinib: molecular mechanism(s) of its better efficacy.
Cancer 2012;118(20):5180-1; author reply 5181-2.
2012: Zhivko Zhelev; Ichio Aoki; Rumiana Bakalova; Veselina Gadjeva; Tsuneo Saga
Cell-penetrating nitroxides as molecular sensors for imaging of cancer in vivo, based on tissue redox activity.
Molecular bioSystems 2012;8(10):2733-40.
2011: George Hadjidekov; Savina Hadjidekova; Zahari Tonchev; Rumiana Bakalova; Ichio Aoki
Assessing renal function in children with hydronephrosis - additional feature of MR urography.
Radiology and oncology 2011;45(4):248-58.
2011: Atsuyuki Tomizawa; Zhivko Zhelev; Ichio Aoki; Itsuko Ishii; Mitsukazu Kitada; Sayaka Shibata; Rumiana Bakalova
Carbamoyl-PROXYL-enhanced MRI detects very small disruptions in brain vascular permeability induced by dietary cholesterol.
Biochimica et biophysica acta 2011;1810(12):1309-16.
2011: Atsuyuki Tomizawa; Zhivko Zhelev; Tsuneo Saga; Ichio Aoki; Rumiana Bakalova; George Hadjidekov; Itsuko Ishii; Mitsukazu Kitada
Nitroxide derivatives for imaging of hypercholesterolemia-induced kidney dysfunction and assessing the effectiveness of antilipidemic drugs.
Molecular pharmaceutics 2011;8(5):1962-9.
2011: Rumiana Bakalova; Daisuke Kokuryo; Lubomir Spasov; Zhivko Zhelev; Ichio Aoki; Tsuneo Saga
Chemical nature and structure of organic coating of quantum dots is crucial for their application in imaging diagnostics.
International journal of nanomedicine 2011;6():1719-32.
2010: Zhivko Zhelev; Rumiana Bakalova; Ichio Aoki; Veselina Gadjeva; Iwao Kanno
Imaging of cancer by redox-mediated mechanism: a radical diagnostic approach.
Molecular bioSystems 2010;6(12):2386-8.
2010: Hiroyuki Takuwa; Tetsuya Matsuura; Rumiana Bakalova; Takayuki Obata; Iwao Kanno
Contribution of nitric oxide to cerebral blood flow regulation under hypoxia in rats.
The journal of physiological sciences : JPS 2010;60(6):399-406.
2009: Zhivko Zhelev; Ken-Ichiro Matsumoto; Veselina Gadjeva; Rumiana Bakalova; Ichio Aoki; Antoaneta Zheleva; Kazunori Anzai
EPR signal reduction kinetic of several nitroxyl derivatives in blood in vitro and in vivo.
General physiology and biophysics 2009;28(4):356-62.
2009: Tetsuya Matsuura; Hiroyuki Takuwa; Rumiana Bakalova; Takayuki Obata; Iwao Kanno
Effect of cyclooxygenase-2 on the regulation of cerebral blood flow during neuronal activation in the rat.
Neuroscience research 2009;65(1):64-70.
2009: Zhivko Zhelev; Rumiana Bakalova; Ichio Aoki; Ken-ichiro Matsumoto; Veselina Gadjeva; Kazunori Anzai; Iwao Kanno
Nitroxyl radicals for labeling of conventional therapeutics and noninvasive magnetic resonance imaging of their permeability for blood-brain barrier: relationship between structure, blood clearance, and MRI signal dynamic in the brain.
Molecular pharmaceutics 2009;6(2):504-12.
2008: Rumiana Bakalova; Zhivko Zhelev; Veselina Gadjeva
Quantum dots versus organic fluorophores in fluorescent deep-tissue imaging--merits and demerits.
General physiology and biophysics 2008;27(4):231-42.
2008: Rumiana Bakalova; Zhivko Zhelev; Ichio Aoki; Kazuto Masamoto; Milka Mileva; Takayuki Obata; Makoto Higuchi; Veselina Gadjeva; Iwao Kanno
Multimodal silica-shelled quantum dots: direct intracellular delivery, photosensitization, toxic, and microcirculation effects.
Bioconjugate chemistry 2008;19(6):1135-42.
2008: Takanori Kubo; Zhivko Zhelev; Hideki Ohba; Rumiana Bakalova
Chemically modified symmetric and asymmetric duplex RNAs: an enhanced stability to nuclease degradation and gene silencing effect.
Biochemical and biophysical research communications 2008;365(1):54-61.
2007: Genoveva Zlateva; Zhivko Zhelev; Rumiana Bakalova; Iwao Kanno
Precise size control and synchronized synthesis of six colors of CdSe quantum dots in a slow-increasing temperature gradient.
Inorganic chemistry 2007;46(16):6212-4.
2007: Rumiana Bakalova
Fluorescent molecular sensors and multi-photon microscopy in brain studies.
Brain research bulletin 2007;73(1-3):150-3.
2007: Rumiana Bakalova
Ultra-fast biosensors and multi-photon microscopy in the future of brain studies.
Cellular and molecular neurobiology 2007;27(3):359-65.
2007: Rumiana Bakalova; Zhivko Zhelev; Takanori Kubo; Milka Mileva; Hideki Ohba
Dual-labeled telomere sensing probes for quantification of telomerase activity assay.
Journal of biochemical and biophysical methods 2007;70(3):503-6.
2007: Takanori Kubo; Zhivko Zhelev; Rumiana Bakalova; Hideki Ohba
Enhancement of gene silencing potency and nuclease stability by chemically modified duplex RNA.
Nucleic acids symposium series (2004) 2007;(51):407-8.
2007: Takanori Kubo; Zhivko Zhelev; Hideki Ohba; Rumiana Bakalova
Modified 27-nt dsRNAs with dramatically enhanced stability in serum and long-term RNAi activity.
Oligonucleotides 2007;17(4):445-64.
2006: Rumiana Bakalova; Zhivko Zhelev; Ichio Aoki; Hideki Ohba; Yusuke Imai; Iwao Kanno
Silica-shelled single quantum dot micelles as imaging probes with dual or multimodality.
Analytical chemistry 2006;78(16):5925-32.
2006: Zhivko Zhelev; Hideki Ohba; Rumiana Bakalova
Single quantum dot-micelles coated with silica shell as potentially non-cytotoxic fluorescent cell tracers.
Journal of the American Chemical Society 2006;128(19):6324-5.
2006: Rajan Jose; Zhivko Zhelev; Toshimi Nagase; Rumiana Bakalova; Yoshinobu Baba; Mitsuru Ishikawa
Self-surface passivation of CdX (X = Se, Te) quantum dots.
Journal of nanoscience and nanotechnology 2006;6(3):618-23.
2006: Zhivko Zhelev; Rumiana Bakalova; Hideki Ohba; Rajan Jose; Yusuke Imai; Yoshinobu Baba
Uncoated, broad fluorescent, and size-homogeneous CdSe quantum dots for bioanalyses.
Analytical chemistry 2006;78(1):321-30.
2005: Hannah Schröder-Borm; Rumiana Bakalova; Jörg Andrä
The NK-lysin derived peptide NK-2 preferentially kills cancer cells with increased surface levels of negatively charged phosphatidylserine.
FEBS letters 2005;579(27):6128-34.
2005: Takanori Kubo; Zhivko Zhelev; Rumiana Bakalova; Bakalova Rumiana; Hideki Ohba; Keiko Doi; Masayuki Fujii
Controlled intracellular localization and enhanced antisense effect of oligonucleotides by chemical conjugation.
Organic & biomolecular chemistry 2005;3(18):3257-9.
2005: Rumiana Bakalova; Zhivko Zhelev; Hideki Ohba; Yoshinobu Baba
Quantum dot-conjugated hybridization probes for preliminary screening of siRNA sequences.
Journal of the American Chemical Society 2005;127(32):11328-35.
2005: Zhivko Zhelev; Rumiana Bakalova; Ashraf A Ewis; Hideki Ohba; Mitsuru Ishikawa; Yoshinobu Baba
Nonradioactive telomerase activity assay by microchip electrophoresis: privileges to the classical gel electrophoresis assay.
Electrophoresis 2005;26(15):3021-4.
2005: Rumiana Bakalova; Zhivko Zhelev; Hideki Ohba; Yoshinobu Baba
Quantum dot-based western blot technology for ultrasensitive detection of tracer proteins.
Journal of the American Chemical Society 2005;127(26):9328-9.
2005: Rumiana Bakalova; Zhivko Zhelev; Rajan Jose; Toshimi Nagase; Hideki Ohba; Mitsuru Ishikawa; Yoshinobu Baba
Role of free cadmium and selenium ions in the potential mechanism for the enhancement of photoluminescence of CdSe quantum dots under ultraviolet irradiation.
Journal of nanoscience and nanotechnology 2005;5(6):887-94.
2005: Ashraf A Ewis; Zhivko Zhelev; Rumiana Bakalova; Satoshi Fukuoka; Yasuo Shinohara; Mitsuru Ishikawa; Yoshinobu Baba
A history of microarrays in biomedicine.
Expert review of molecular diagnostics 2005;5(3):315-28.
2005: Zhivko Zhelev; Hideki Ohba; Rumiana Bakalova; Rajan Jose; Satoshi Fukuoka; Toshimi Nagase; Mitsuru Ishikawa; Yoshinobu Baba
Fabrication of quantum dot-lectin conjugates as novel fluorescent probes for microscopic and flow cytometric identification of leukemia cells from normal lymphocytes.
Chemical communications (Cambridge, England) 2005;(15):1980-2.
2005: Takanori Kubo; Kengo Takamori; Ken-ichi Kanno; Rumiana Bakalova; Bakalova Rumiana; Hideki Ohba; Miho Matsukisono; Yasuo Akebiyama; Masayuki Fujii
Efficient cleavage of RNA, enhanced cellular uptake, and controlled intracellular localization of conjugate DNAzymes.
Bioorganic & medicinal chemistry letters 2005;15(1):167-70.
2005: Takanori Kubo; Rumiana Bakalova; Zhivko Zhelev; Hideki Ohba; Masayuki Fujii
Highly sensitive inhibition of hTERT mRNA expression and telomerase activity by DNA-signal-peptide conjugates.
Nucleic acids symposium series (2004) 2005;(49):337-8.
2004: Hiroki Ando; Hideki Ohba; Tsuyoshi Sakaki; Kazunori Takamine; Yoshitaka Kamino; Sawako Moriwaki; Rumiana Bakalova; Yoshimitsu Uemura; Yasuo Hatate
Hot-compressed-water decomposed products from bamboo manifest a selective cytotoxicity against acute lymphoblastic leukemia cells.
Toxicology in vitro : an international journal published in association with BIBRA 2004;18(6):765-71.
2004: Vera Hadjimitova; Trayko Traykov; Rumiana Bakalova; V Petrova; I Lambev; Hideki Ohba; M Ishikawa; Y Baba
Chemiluminescent analysis of the antioxidant and immunomodulation effects of several psychotropic drugs on peritoneal macrophages.
Luminescence : the journal of biological and chemical luminescence 2004;19(6):319-21.
2004: Rumiana Bakalova; Hideki Ohba; Zhivko Zhelev; Mitsuru Ishikawa; Yoshinobu Baba
Quantum dots as photosensitizers?
Nature biotechnology 2004;22(11):1360-1.
2004: Hideki Ohba; Zhivko Zhelev; Rumiana Bakalova; Ashraf A Ewis; Toshiro Omori; Mitsuru Ishikawa; Yasuo Shinohara; Yoshinobu Baba
Inhibition of bcr-abl and/or c-abl gene expression by small interfering, double-stranded RNAs: cross-talk with cell proliferation factors and other oncogenes.
Cancer 2004;101(6):1390-403.
2004: Rumiana Bakalova; Hideki Ohba; Zhivko Zhelev; Takanori Kubo; Masayuki Fujii; Mitsuru Ishikawa; Yasuo Shinohara; Yoshinobu Baba
Atypical protein-kinase Czeta, but neither conventional Ca2+ -dependent protein-kinase C isoenzymes nor Ca2+ -calmodulin, participates in regulation of telomerase activity in Burkitt's lymphoma cells.
Cancer chemotherapy and pharmacology 2004;54(2):161-72.
2004: Zhivko Zhelev; Rajan Jose; Toshimi Nagase; Hideki Ohba; Rumiana Bakalova; Mitsuru Ishikawa; Yoshinobu Baba
Enhancement of the photoluminescence of CdSe quantum dots during long-term UV-irradiation: privilege or fault in life science research?
Journal of photochemistry and photobiology. B, Biology 2004;75(1-2):99-105.
2004: Zhivko Zhelev; Rumiana Bakalova; Hideki Ohba; Ashraf A Ewis; Mitsuru Ishikawa; Yasuo Shinohara; Yoshinobu Baba
Suppression of bcr-abl synthesis by siRNAs or tyrosine kinase activity by Glivec alters different oncogenes, apoptotic/antiapoptotic genes and cell proliferation factors (microarray study).
FEBS letters 2004;570(1-3):195-204.
2004: Rumiana Bakalova; Hideki Ohba; Zhivko Zhelev; Takanori Kubo; Masayuki Fujii; Mitsuru Ishikawa; Yasuo Shinohara; Yoshinobu Baba
Antisense inhibition of Bcr-Abl/c-Abl synthesis promotes telomerase activity and upregulates tankyrase in human leukemia cells.
FEBS letters 2004;564(1-2):73-84.
2004: Hideki Ohba; Sawako Moriwaki; Rumiana Bakalova; Seiji Yasuda; Nobuyuki Yamasaki
Plant-derived abrin-a induces apoptosis in cultured leukemic cell lines by different mechanisms.
Toxicology and applied pharmacology 2004;195(2):182-93.
2004: Zhivko Zhelev; Hideki Ohba; Rumiana Bakalova; Vera Hadjimitova; Mitsuru Ishikawa; Yasuo Shinohara; Yoshinobu Baba
Phenothiazines suppress proliferation and induce apoptosis in cultured leukemic cells without any influence on the viability of normal lymphocytes. Phenothiazines and leukemia.
Cancer chemotherapy and pharmacology 2004;53(3):267-75.
2003: Rumiana Bakalova; Hideki Ohba; Zhivko Zhelev; Mitsuru Ishikawa; Yasuo Shinohara; Yoshinobu Baba
Cross-talk between Bcr-Abl tyrosine kinase, protein kinase C and telomerase-a potential reason for resistance to Glivec in chronic myelogenous leukaemia.
Biochemical pharmacology 2003;66(10):1879-84.
2003: Rumiana Bakalova; H Ohba
Interaction of soybean agglutinin with leukemic T-cells and its use for their in vitro separation from normal lymphocytes by lectin-affinity chromatography.
Biomedical chromatography : BMC 2003;17(4):239-49.
2003: Hideki Ohba; Rumiana Bakalova
Relationships between degree of binding, cytotoxicity and cytoagglutinating activity of plant-derived agglutinins in normal lymphocytes and cultured leukemic cell lines.
Cancer chemotherapy and pharmacology 2003;51(6):451-8.
2003: Vera Hadjimitova; Rumiana Bakalova; Trayko Traykov; Hideki Ohba; Stefan Ribarov
Effect of phenothiazines on protein kinase C- and calcium-dependent activation of peritoneal macrophages.
Cell biology and toxicology 2003;19(1):3-12.
2003: Hideki Ohba; Rumiana Bakalova; muraki michiro
Cytoagglutination and cytotoxicity of Wheat Germ Agglutinin isolectins against normal lymphocytes and cultured leukemic cell lines--relationship between structure and biological activity.
Biochimica et biophysica acta 2003;1619(2):144-50.
2003: Takanori Kubo; Yosuke Anno; Mayuka Yano; Kengo Takamori; Rumiana Bakalova; Hideki Ohba; Masayuki Fujii
Control of intracellular delivery and inhibition of genetic expression by DNA-peptide conjugates.
Nucleic acids research. Supplement (2001) 2003;(3):237-8.
2003: Takanori Kubo; Rumiana Bakalova; Hideki Ohba; Masayuki Fujii
Antisense effects of DNA-peptide conjugates.
Nucleic acids research. Supplement (2001) 2003;(3):179-80.
2003: Takanori Kubo; Kengo Takamori; Rumiana Bakalova; Hideki Ohba; Masayuki Fujii
Conjugate DNAzymes.
Nucleic acids research. Supplement (2001) 2003;(3):177-8.
2002: Zhivko Zhelev; Rumiana Bakalova
Laser-Doppler imaging of activation-flow coupling in the somatosensory cortex: normalization of signal when the baseline changes significantly.
Methods and findings in experimental and clinical pharmacology 2002;24(9):559-64.
2002: H Ohba; Rumiana Bakalova; S Moriwaki; O Nakamura
Fractionation of normal and leukemic T-cells by lectin-affinity column chromatography.
Cancer letters 2002;184(2):207-14.
2002: Zhivko Zhelev; Rumiana Bakalova
Effect of vitamins E and C on transplant-associated atherosclerosis.
Lancet 2002;360(9331):487; discussion 487.
2002: Rumiana Bakalova; Tetsuia Matsuura; Iwao Kanno
The cyclooxygenase inhibitors indomethacin and Rofecoxib reduce regional cerebral blood flow evoked by somatosensory stimulation in rats.
Experimental biology and medicine (Maywood, N.J.) 2002;227(7):465-73.
2002: Rumiana Bakalova; Zhivko Zhelev; Hideki Ohba
Decrease of resistance to imatinib in leukaemia.
Lancet 2002;359(9319):1776-7.
2002: Milka Mileva; Rumiana Bakalova; L Tancheva; S Galabov
Effect of immobilization, cold and cold-restraint stress on liver monooxygenase activity and lipid peroxidation of influenza virus-infected mice.
Archives of toxicology 2002;76(2):96-103.
2002: Milka Mileva; Rumiana Bakalova; L Tancheva; Angel S Galabov; Stefan Ribarov
Effect of vitamin E supplementation on lipid peroxidation in blood and lung of influenza virus infected mice.
Comparative immunology, microbiology and infectious diseases 2002;25(1):1-11.
2000: Rumiana Bakalova; Milka Mileva; C Kotsev; V Bardarov; Stefan Ribarov
Determination of malondialdehyde in biological samples by solid-phase extraction and high-performance liquid chromatography.
Methods and findings in experimental and clinical pharmacology 2000;22(5):267-9.
2000: Milka Mileva; L Tancheva; Rumiana Bakalova; Angel S Galabov; Varban Minkov Savov; Stefan Ribarov
Effect of vitamin E on lipid peroxidation and liver monooxigenase activity in experimental influenza virus infection.
Toxicology letters 2000;114(1-3):39-45.
2000: Rumiana Bakalova; V Hadzhimitova; Stefan Ribarov
Relationships between serum levels of autoantibodies against oxidized low density lipoproteins, lipid-soluble antioxidants and apolipoprotein B in patients with coronary heart disease.
General physiology and biophysics 2000;19(1):103-13.
2000: Rumiana Bakalova; Milka Mileva; C Kutsev; Genoveva Zlateva; Stefan Ribarov
Pharmacodynamic of the antioxidant action of alpha-tocopherol and its derivatives in liver, brain, heart and skeletal muscles.
Acta physiologica et pharmacologica Bulgarica 2000;25(1):19-26.
1999: Rumiana Bakalova; Zhivko Zhelev; Assen R Goudev; Stefan Ribarov; C Nachev
Serum level of IgG autoantibodies against oxidized low density lipoproteins and lag-phase of serum oxidation in coronary heart disease--inverse correlation.
General physiology and biophysics 1999;18(1):87-97.