Publications by authors named "Violeta Valcheva"

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Real-time PCR assay for robust detection and global surveillance of the Mycobacterium tuberculosis Haarlem genotype.
Daria Tkachuk, Anna Vyazovaya, Irina Kostyukova, David Couvin, Svetlana Zhdanova, Violeta Valcheva

Sci Rep· December 2025

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Genomic Insight into Primary Adaptation of to Aroylhydrazones and Nitrofuroylamides In Vitro.
Igor Mokrousov, Violina T Angelova, Ivaylo Slavchev, Mikhail V Bezruchko, Simeon Dimitrov, Violeta Valcheva

Antibiotics (Basel)· February 2025

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Antimycobacterial Activity of Essential Oils from Bulgarian Species Against Phylogenomically Different Strains.
Violeta Valcheva, Milka Mileva, Marine Dogonadze, Ana Dobreva, Igor Mokrousov

Pharmaceutics· October 2024

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Evaluation of Acute and Sub-Acute Toxicity, Oxidative Stress and Molecular Docking of Two Nitrofuranyl Amides as Promising Anti-Tuberculosis Agents.
Simeon Dimitrov, Ivaylo Slavchev, Rumyana Simeonova, Milka Mileva, Tania Pencheva, Violeta Valcheva

Biomolecules· July 2023

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Insight into pathogenomics and phylogeography of hypervirulent and highly-lethal Mycobacterium tuberculosis strain cluster.
Igor Mokrousov, Anna Vyazovaya, Egor Shitikov, Maria Badleeva, Olesya Belopolskaya, Violeta Valcheva

BMC Infect Dis· June 2023

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Recent Advances in Anti-Tuberculosis Drug Discovery Based on Hydrazide-Hydrazone and Thiadiazole Derivatives Targeting InhA.
Yoanna Teneva, Rumyana Simeonova, Violeta Valcheva, Violina T Angelova

Pharmaceuticals (Basel)· March 2023

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First Insight into Diversity of Minisatellite Loci in / in Bulgaria.
Daria Terentieva, Tanya Savova-Lalkovska, Albena Dimitrova, Magdalena Bonovska, Igor Mokrousov, Violeta Valcheva

Diagnostics (Basel)· February 2023

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In Vivo Toxicity, Redox-Modulating Capacity and Intestinal Permeability of Novel Aroylhydrazone Derivatives as Anti-Tuberculosis Agents.
Violeta Valcheva, Rumyana Simeonova, Milka Mileva, Stanislav Philipov, Reneta Petrova

Pharmaceutics· December 2022

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Molecular Insight into Resistance to Nitrofuranyl Amides Gained through Metagenomics-like Analysis of Spontaneous Mutants.
Igor Mokrousov, Ivaylo Slavchev, Natalia Solovieva, Marine Dogonadze, Anna Vyazovaya, Violeta Valcheva

Pharmaceuticals (Basel)· September 2022

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Mycobacterium bovis and M. caprae in Bulgaria: insight into transmission and phylogeography gained through whole-genome sequencing.
Violeta Valcheva, Claudia Perea, Tanya Savova-Lalkovska, Albena Dimitrova, Lukasz Radulski

BMC Vet Res· April 2022

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Development of New Antimycobacterial Sulfonyl Hydrazones and 4-Methyl-1,2,3-thiadiazole-Based Hydrazone Derivatives.
Violina T Angelova, Tania Pencheva, Nikolay Vassilev, Elena K-Yovkova, Rositsa Mihaylova, Violeta Valcheva

Antibiotics (Basel)· April 2022

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Antimicrobial Triterpenoids and Ingol Diterpenes from Propolis of Semi-Arid Region of Morocco.
Ralitsa Chimshirova, Milena Popova, Amina Chakir, Violeta Valcheva, Simeon Dimitrov

Molecules· March 2022

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Rose Flowers-A Delicate Perfume or a Natural Healer?
Milka Mileva, Yana Ilieva, Gabriele Jovtchev, Svetla Gateva, Maya Margaritova Zaharieva, Violeta Valcheva

Biomolecules· January 2021

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First insight into phylogeography of Mycobacterium bovis and M. caprae from cattle in Bulgaria.
Violeta Valcheva, Tanya Savova-Lalkovska, Anna Vyazovaya, Albena Dimitrova, Magdalena Bonovska

Infect Genet Evol· July 2020

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Hypepontine, a new quaternary alkaloid with antimicrobial properties.
Tsvetelina Doncheva, Nadezhda Kostova, Violeta Valcheva, Radostina Toshkovska, Vassil Vutov

Nat Prod Res· March 2020

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Xanthates: Metabolism by Flavoprotein-Containing Monooxygenases and Antimycobacterial Activity.
Stanislav G Yanev, Tsveta D Stoyanova, Violeta V Valcheva, Paul R Ortiz de Montellano

Drug Metab Dispos· August 2018

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New cycloartane triterpenes from bioactive extract of propolis from Pitcairn Island.
Kristina Georgieva, Boryana Trusheva, Veselina Uzunova, Tihomira Stoyanova, Violeta Valcheva

Fitoterapia· July 2018

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Synthetic piperine amide analogs with antimycobacterial activity.
Irena Philipova, Violeta Valcheva, Rositsa Mihaylova, Mina Mateeva, Irini Doytchinova

Chem Biol Drug Des· March 2018

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Rapid Assay for Detection of the Epidemiologically Important Central Asian/Russian Strain of the Mycobacterium tuberculosis Beijing Genotype.
Igor Mokrousov, Ekaterina Chernyaeva, Anna Vyazovaya, Yuriy Skiba, Natalia Solovieva, Violeta Valcheva

J Clin Microbiol· February 2018

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Synthesis, antimycobacterial activity and docking study of 2-aroyl-[1]benzopyrano[4,3-c]pyrazol-4(1H)-one derivatives and related hydrazide-hydrazones.
Violina T Angelova, Violeta Valcheva, Tania Pencheva, Yulian Voynikov, Nikolay Vassilev

Bioorg Med Chem Lett· July 2017

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Antimycobacterial activity of novel hydrazide-hydrazone derivatives with 2H-chromene and coumarin scaffold.
Violina T Angelova, Violeta Valcheva, Nikolay G Vassilev, Rosen Buyukliev, Georgi Momekov

Bioorg Med Chem Lett· January 2017

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Latin-American-Mediterranean lineage of Mycobacterium tuberculosis: Human traces across pathogen's phylogeography.
Igor Mokrousov, Anna Vyazovaya, Tomotada Iwamoto, Yuriy Skiba, Ilva Pole, Violeta Valcheva

Mol Phylogenet Evol· June 2016

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Design, Synthesis, and Antimycobacterial Activity of Novel Theophylline-7-Acetic Acid Derivatives With Amino Acid Moieties.
Georgi Stavrakov, Violeta Valcheva, Yulian Voynikov, Irena Philipova, Mariyana Atanasova

Chem Biol Drug Des· March 2016

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Prevalence of Latin-American-Mediterranean genetic family in population structure of Mycobacterium tuberculosis in Bulgaria.
Violeta Valcheva, Nalin Rastogi, Igor Mokrousov

Int J Mycobacteriol· September 2015

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Antimycobacterial activity generated by the amide coupling of (-)-fenchone derived aminoalcohol with cinnamic acids and analogues.
Ivaylo Slavchev, Georgi M Dobrikov, Violeta Valcheva, Iva Ugrinova, Evdokia Pasheva

Bioorg Med Chem Lett· November 2014

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