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Kubatka P, Mazurakova A, Koklesova L, Kuruc T, Samec M, Kajo K, Kotorova K, Adamkov M, Smejkal K, Svajdlenka E, Dvorska D, Brany D, Baranovicova E, Sadlonova V, Mojzis J, Kello M. Salvia officinalis L. exerts oncostatic effects in rodent and in vitro models of breast carcinoma. Front Pharmacol 2024; 15:1216199. [PMID: 38464730 PMCID: PMC10921418 DOI: 10.3389/fphar.2024.1216199] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Accepted: 01/25/2024] [Indexed: 03/12/2024] Open
Abstract
Introduction: Based on extensive data from oncology research, the use of phytochemicals or plant-based nutraceuticals is considered an innovative tool for cancer management. This research aimed to analyze the oncostatic properties of Salvia officinalis L. [Lamiaceae; Salviae officinalis herba] using animal and in vitro models of breast carcinoma (BC). Methods: The effects of dietary administered S. officinalis in two concentrations (0.1%/SAL 0.1/and 1%/SAL 1/) were assessed in both syngeneic 4T1 mouse and chemically induced rat models of BC. The histopathological and molecular evaluations of rodent carcinoma specimens were performed after the autopsy. Besides, numerous in vitro analyses using two human cancer cell lines were performed. Results and Conclusion: The dominant metabolites found in S. officinalis propylene glycol extract (SPGE) were representatives of phenolics, specifically rosmarinic, protocatechuic, and salicylic acids. Furthermore, the occurrence of triterpenoids ursolic and oleanolic acid was proved in SPGE. In a mouse model, a non-significant tumor volume decrease after S. officinalis treatment was associated with a significant reduction in the mitotic activity index of 4T1 tumors by 37.5% (SAL 0.1) and 31.5% (SAL 1) vs. controls (set as a blank group with not applied salvia in the diet). In addition, salvia at higher doses significantly decreased necrosis/whole tumor area ratio by 46% when compared to control tumor samples. In a rat chemoprevention study, S. officinalis at a higher dose significantly lengthened the latency of tumors by 8.5 days and significantly improved the high/low-grade carcinomas ratio vs. controls in both doses. Analyses of the mechanisms of anticancer activities of S. officinalis included well-validated prognostic, predictive, and diagnostic biomarkers that are applied in both oncology practice and preclinical investigation. Our assessment in vivo revealed numerous significant changes after a comparison of treated vs. untreated cancer cells. In this regard, we found an overexpression in caspase-3, an increased Bax/Bcl-2 ratio, and a decrease in MDA, ALDH1, and EpCam expression. In addition, salvia reduced TGF-β serum levels in rats (decrease in IL-6 and TNF-α levels were with borderline significance). Evaluation of epigenetic modifications in rat cancer specimens in vivo revealed a decline in the lysine methylations of H3K4m3 and an increase in lysine acetylation in H4K16ac levels in treated groups. Salvia decreased the relative levels of oncogenic miR21 and tumor-suppressive miR145 (miR210, miR22, miR34a, and miR155 were not significantly altered). The methylation of ATM and PTEN promoters was decreased after S. officinalis treatment (PITX2, RASSF1, and TIMP3 promoters were not altered). Analyzing plasma metabolomics profile in tumor-bearing rats, we found reduced levels of ketoacids derived from BCAAs after salvia treatment. In vitro analyses revealed significant anti-cancer effects of SPGE extract in MCF-7 and MDA-MB-231 cell lines (cytotoxicity, caspase-3/-7, Bcl-2, Annexin V/PI, cell cycle, BrdU, and mitochondrial membrane potential). Our study demonstrates the significant chemopreventive and treatment effects of salvia haulm using animal or in vitro BC models.
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Affiliation(s)
- Peter Kubatka
- Department of Histology and Embryology, Jessenius Faculty of Medicine, Comenius University in Bratislava, Martin, Slovakia
| | - Alena Mazurakova
- Department of Anatomy, Jessenius Faculty of Medicine, Comenius University in Bratislava, Martin, Slovakia
| | - Lenka Koklesova
- Department of Histology and Embryology, Jessenius Faculty of Medicine, Comenius University in Bratislava, Martin, Slovakia
| | - Tomas Kuruc
- Department of Pharmacology, Faculty of Medicine, P. J. Šafárik University, Košice, Slovakia
| | - Marek Samec
- Department of Medical Biology, Jessenius Faculty of Medicine, Comenius University in Bratislava, Martin, Slovakia
| | - Karol Kajo
- Department of Pathology, St. Elisabeth Oncology Institute, Bratislava, Slovakia
| | - Klaudia Kotorova
- Department of Pharmacology, Faculty of Medicine, P. J. Šafárik University, Košice, Slovakia
| | - Marian Adamkov
- Department of Histology and Embryology, Jessenius Faculty of Medicine, Comenius University in Bratislava, Martin, Slovakia
| | - Karel Smejkal
- Department of Natural Drugs, Faculty of Pharmacy, Masaryk University, Brno, Czechia
| | - Emil Svajdlenka
- Department of Natural Drugs, Faculty of Pharmacy, Masaryk University, Brno, Czechia
| | - Dana Dvorska
- Biomedical Centre Martin, Jessenius Faculty of Medicine, Comenius University in Bratislava, Martin, Slovakia
| | - Dusan Brany
- Biomedical Centre Martin, Jessenius Faculty of Medicine, Comenius University in Bratislava, Martin, Slovakia
| | - Eva Baranovicova
- Biomedical Centre Martin, Jessenius Faculty of Medicine, Comenius University in Bratislava, Martin, Slovakia
| | - Vladimira Sadlonova
- Department of Microbiology and Immunology, Jessenius Faculty of Medicine, Comenius University in Bratislava, Martin, Slovakia
| | - Jan Mojzis
- Department of Pharmacology, Faculty of Medicine, P. J. Šafárik University, Košice, Slovakia
| | - Martin Kello
- Department of Pharmacology, Faculty of Medicine, P. J. Šafárik University, Košice, Slovakia
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Sadlonova V, Mazurakova A, Koklesova L, Malinovska N, Grendar M, Novakova E, Kubatka P. The effects of Rhus coriaria L. (sumac) and Cinnamomum zeylanicum L. bark on serum cytokine levels in rat mammary carcinogenesis. Neoplasma 2023; 70:545-554. [PMID: 37789780 DOI: 10.4149/neo_2023_230405n186] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Accepted: 08/14/2023] [Indexed: 10/05/2023]
Abstract
The purpose of this study was to assess the potential effects of Rhus coriaria L. (sumac) and of Cinnamomum zeylanicum L. bark on the selected serum cytokines as possible serum tumor markers - interleukin-6 (IL-6), interleukin-10 (IL-10), and tumor necrosis factor-α (TNF-α) in the rat model of mammary carcinogenesis. R. coriaria and C. zeylanicum bark were used as the chemopreventive-therapeutic agents taken by rats in the powder form in the diet at two different concentrations during the entire period of two experiments carried out separately: lower concentration 1 g/kg - 0.1% and higher concentration 10 g/kg - 1%. The serum levels of cytokines of IL-6, IL-10, and TNF-α were determined using an enzyme-linked immunosorbent assay. In the first experiment treated with R. coriaria, a significant decrease in serum levels of IL-6 and TNF-α was present at higher concentrations compared to the chemoprevention-free control group. R. coriaria at lower concentrations non-significantly reduced the serum levels of IL-6 and TNF-α when compared to controls. A significant decrease in serum levels of TNF-α was present at higher concentrations compared to lower concentrations. The significant effect of R. coriaria on the serum levels of IL-10 was not observed. In the second experiment treated with C. zeylanicum bark, a significant decrease in serum levels of IL-6 was observed in lower and higher concentrations compared to the chemoprevention-free control group. C. zeylanicum bark non-significantly reduced the serum levels of TNF-α and had no effect on the serum levels of IL-10. In conclusion, R. coriaria and C. zeylanicum bark demonstrated significant anti-inflammatory effects by analyzing the selected serum cytokine levels in the rat breast carcinoma model. Observed anti-inflammatory effects of both plant-natural substances were associated with their anticancer activities in rats.
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Affiliation(s)
- Vladimira Sadlonova
- Department of Microbiology and Immunology, Jessenius Faculty of Medicine in Martin, Comenius University Bratislava, Martin, Slovakia
| | - Alena Mazurakova
- Department of Anatomy, Jessenius Faculty of Medicine in Martin, Comenius University Bratislava, Martin, Slovakia
| | - Lenka Koklesova
- Clinic of Gynecology and Obstetrics, Jessenius Faculty of Medicine in Martin, Comenius University Bratislava, Martin, Slovakia
| | - Nora Malinovska
- Department of Foreign Languages, Jessenius Faculty of Medicine in Martin, Comenius University Bratislava, Martin, Slovakia
| | - Marian Grendar
- Biomedical Centre Martin, Jessenius Faculty of Medicine in Martin, Comenius University Bratislava, Martin, Slovakia
| | - Elena Novakova
- Department of Microbiology and Immunology, Jessenius Faculty of Medicine in Martin, Comenius University Bratislava, Martin, Slovakia
| | - Peter Kubatka
- Department of Medical Biology, Jessenius Faculty of Medicine in Martin, Comenius University Bratislava, Martin, Slovakia
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Novakova E, Stofkova Z, Sadlonova V, Hleba L. Diagnostic Methods of Clostridioides difficile Infection and Clostridioides difficile Ribotypes in Studied Sample. Antibiotics (Basel) 2021; 10:antibiotics10091035. [PMID: 34572617 PMCID: PMC8466394 DOI: 10.3390/antibiotics10091035] [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] [Received: 05/21/2021] [Revised: 07/26/2021] [Accepted: 08/19/2021] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Clostridioides (Clostridium) difficile is the most common nosocomial pathogen and antibiotic-related diarrhea in health-care facilities. Over the last few years, there was an increase in the incidence rate of C. difficile infection cases in Slovakia. In this study, the phenotypic (toxigenicity, antimicrobial susceptibility) and genotypic (PCR ribotypes, genes for binary toxins) patterns of C. difficile isolates from patients with CDI were analyzed, from July to August 2016, taken from hospitals in the Horne Povazie region of northern Slovakia. The aim of the study was also to identify hypervirulent strains (e.g., the presence of RT027 or RT176). METHODS The retrospective analysis of biological samples suspected of CDI were analyzed by GDH, anaerobic culture, enzyme immunoassay on toxins A/B, multiplex "real-time" PCR and PCR capillary-based electrophoresis ribotyping, and by MALDI TOF MS. RESULTS C. difficile isolates (n = 44) were identified by PCR ribotyping, which revealed five different ribotypes (RT001, 011, 017, 081, 176). The presence of hypervirulent RT027 was not identified. The C. difficile isolates (RT001, 011, 081, 176) were susceptible to metronidazole and vancomycin. One isolate RT017 had reduced susceptibility to vancomycin. A statistically significant difference between the most prevalent PCR ribotypes, RT001 and RT176, regarding variables such as albumin, CRP, creatinine, the length of hospitalization (p = 0.175), and glomerular filtration (p = 0.05) was not found. CONCLUSION The results of PCR capillary-based electrophoresis ribotyping in the studied samples showed a high prevalence of RT176 and 001.
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Affiliation(s)
- Elena Novakova
- Jessenius Faculty of Medicine in Martin, Comenius University in Bratislava, Mala Hora 4A, 03601 Martin, Slovakia; (E.N.); (V.S.)
| | - Zuzana Stofkova
- Jessenius Faculty of Medicine in Martin, Comenius University in Bratislava, Mala Hora 4A, 03601 Martin, Slovakia; (E.N.); (V.S.)
- Correspondence:
| | - Vladimira Sadlonova
- Jessenius Faculty of Medicine in Martin, Comenius University in Bratislava, Mala Hora 4A, 03601 Martin, Slovakia; (E.N.); (V.S.)
| | - Lukas Hleba
- Faculty of Biotechnology and Food Sciences, Slovak University of Agriculture in Nitra, A. Hlinku 610/4, 94901 Nitra, Slovakia;
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Kubatka P, Kello M, Kajo K, Samec M, Liskova A, Jasek K, Koklesova L, Kuruc T, Adamkov M, Smejkal K, Svajdlenka E, Solar P, Pec M, Büsselberg D, Sadlonova V, Mojzis J. Rhus coriaria L. (Sumac) Demonstrates Oncostatic Activity in the Therapeutic and Preventive Model of Breast Carcinoma. Int J Mol Sci 2020; 22:ijms22010183. [PMID: 33375383 PMCID: PMC7795985 DOI: 10.3390/ijms22010183] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Revised: 12/21/2020] [Accepted: 12/24/2020] [Indexed: 12/13/2022] Open
Abstract
Comprehensive scientific data provide evidence that isolated phytochemicals or whole plant foods may beneficially modify carcinogenesis. The aim of this study was to evaluate the oncostatic activities of Rhus coriaria L. (sumac) using animal models (rat and mouse), and cell lines of breast carcinoma. R. coriaria (as a powder) was administered through the diet at two concentrations (low dose: 0.1% (w/w) and high dose: 1 % (w/w)) for the duration of the experiment in a syngeneic 4T1 mouse and chemically-induced rat mammary carcinoma models. After autopsy, histopathological and molecular analyses of tumor samples in rodents were performed. Moreover, in vitro analyses using MCF-7 and MDA-MB-231 cells were conducted. The dominant metabolites present in tested R. coriaria methanolic extract were glycosides of gallic acid (possible gallotannins). In the mouse model, R. coriaria at a higher dose (1%) significantly decreased tumor volume by 27% when compared to controls. In addition, treated tumors showed significant dose-dependent decrease in mitotic activity index by 36.5% and 51% in comparison with the control group. In the chemoprevention study using rats, R. coriaria at a higher dose significantly reduced the tumor incidence by 20% and in lower dose non-significantly reduced tumor frequency by 29% when compared to controls. Evaluations of the mechanism of oncostatic action using valid clinical markers demonstrated several positive alterations in rat tumor cells after the treatment with R. coriaria. In this regard, histopathological analysis of treated tumor specimens showed robust dose-dependent decrease in the ratio of high-/low-grade carcinomas by 66% and 73% compared to controls. In treated rat carcinomas, we found significant caspase-3, Bax, and Bax/Bcl-2 expression increases; on the other side, a significant down-regulation of Bcl-2, Ki67, CD24, ALDH1, and EpCam expressions and MDA levels. When compared to control specimens, evaluation of epigenetic alterations in rat tumor cells in vivo showed significant dose-dependent decrease in lysine methylation status of H3K4m3 and H3K9m3 and dose-dependent increase in lysine acetylation in H4K16ac levels (H4K20m3 was not changed) in treated groups. However, only in lower dose of sumac were significant decreases in the expression of oncogenic miR210 and increase of tumor-suppressive miR145 (miR21, miR22, and miR155 were not changed) observed. Finally, only in lower sumac dose, significant decreases in methylation status of three out of five gene promoters-ATM, PTEN, and TIMP3 (PITX2 and RASSF1 promoters were not changed). In vitro evaluations using methanolic extract of R. coriaria showed significant anticancer efficacy in MCF-7 and MDA-MB-231 cells (using Resazurin, cell cycle, annexin V/PI, caspase-3/7, Bcl-2, PARP, and mitochondrial membrane potential analyses). In conclusion, sumac demonstrated significant oncostatic activities in rodent models of breast carcinoma that were validated by mechanistic studies in vivo and in vitro.
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Affiliation(s)
- Peter Kubatka
- Department of Medical Biology, Jessenius Faculty of Medicine, Comenius University in Bratislava, 036 01 Martin, Slovakia;
- Division of Oncology, Biomedical Center Martin, Comenius University in Bratislava, Jessenius Faculty of Medicine, 036 01 Martin, Slovakia;
- Correspondence: (P.K.); (V.S.); (J.M.)
| | - Martin Kello
- Department of Pharmacology, Faculty of Medicine, P. J. Šafárik University, 040 11 Košice, Slovakia; (M.K.); (T.K.)
| | - Karol Kajo
- Department of Pathology, St. Elisabeth Oncology Institute, 812 50 Bratislava, Slovakia;
- Biomedical Research Center, Slovak Academy of Sciences, 845 05 Bratislava, Slovakia
| | - Marek Samec
- Department of Obstetrics and Gynecology, Jessenius Faculty of Medicine, Comenius University in Bratislava, 036 01 Martin, Slovakia; (M.S.); (A.L.); (L.K.)
| | - Alena Liskova
- Department of Obstetrics and Gynecology, Jessenius Faculty of Medicine, Comenius University in Bratislava, 036 01 Martin, Slovakia; (M.S.); (A.L.); (L.K.)
| | - Karin Jasek
- Division of Oncology, Biomedical Center Martin, Comenius University in Bratislava, Jessenius Faculty of Medicine, 036 01 Martin, Slovakia;
| | - Lenka Koklesova
- Department of Obstetrics and Gynecology, Jessenius Faculty of Medicine, Comenius University in Bratislava, 036 01 Martin, Slovakia; (M.S.); (A.L.); (L.K.)
| | - Tomas Kuruc
- Department of Pharmacology, Faculty of Medicine, P. J. Šafárik University, 040 11 Košice, Slovakia; (M.K.); (T.K.)
| | - Marian Adamkov
- Department of Histology and Embryology, Jessenius Faculty of Medicine, Comenius University in Bratislava, 036 01 Martin, Slovakia;
| | - Karel Smejkal
- Department of Natural Drugs, Faculty of Pharmacy, Masaryk University, 612 42 Brno, Czech Republic; (K.S.); (E.S.)
| | - Emil Svajdlenka
- Department of Natural Drugs, Faculty of Pharmacy, Masaryk University, 612 42 Brno, Czech Republic; (K.S.); (E.S.)
| | - Peter Solar
- Department of Medical Biology, Faculty of Medicine, P. J. Šafárik University, 040 11 Kosice, Slovakia;
| | - Martin Pec
- Department of Medical Biology, Jessenius Faculty of Medicine, Comenius University in Bratislava, 036 01 Martin, Slovakia;
| | - Dietrich Büsselberg
- Weill Cornell Medicine in Qatar, Qatar Foundation-Education City, 24144 Doha, Qatar;
| | - Vladimira Sadlonova
- Department of Microbiology and Immunology, Jessenius Faculty of Medicine, Comenius University in Bratislava, 036 01 Martin, Slovakia
- Correspondence: (P.K.); (V.S.); (J.M.)
| | - Jan Mojzis
- Department of Pharmacology, Faculty of Medicine, P. J. Šafárik University, 040 11 Košice, Slovakia; (M.K.); (T.K.)
- Correspondence: (P.K.); (V.S.); (J.M.)
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Stofkova Z, Novakova E, Sadlonova V. Survey on the diagnosis and treatment of Clostridium difficile infection. BRATISL MED J 2020; 121:840-846. [PMID: 33300351 DOI: 10.4149/bll_2020_138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND The toxigenic strains of Clostridioides (Clostridium) difficile is the most common pathogen of nosocomial and antibiotic-related diarrhoea in healthcare facilities. Lately, there has been an increase in the incidence of C. difficile infection (CDI) cases in Slovakia. MATERIALS AND METHODS Retrospective analysis of the CDI appearance was carried out in the Zilina region. Additionally, an electronic survey focused on the diagnosis and treatment management of C. difficile infection was conducted among leading clinicians of the wards where CDI was present. RESULTS Eighty percent of clinicians reported that they were following the recommendations for diagnosis and treatment of C. difficile infection in their everyday practice. The majority of leading physicians were from internal medicine wards (50 %). Most respondents stated that the laboratory results correlated with the clinical symptoms of patients. The first-choice treatment of C. difficile infections was reported to be oral vancomycin (in 21.7 %) and oral metronidazole (in 47.8 %). The estimate of first-choice treatment success rate was 80 %, while the recurrence rate and severe course was observed in 20%. Vancomycin was the standard treatment for recurrent infection. It was administered orally either alone (31 %) or combined with metronidazole (38 %) or fidaxomicin (31 %). CONCLUSION The results of the survey showed that recommendations for the diagnosis and treatment were implemented in the wards of hospitals and showed the awareness of the necessity of rapid diagnosis and early treatment of C. difficile infection in patients (Fig. 4, Ref. 30).
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Malachovsky I, Janickova M, Stasko J, Kasaj M, Sadlonova V, Novakova E, Gengelova P, Smatanová M, Statelová D. Pseudomonas Infection of the Temporomandibular Joint (TMJ) Health and Public Health Issues. Acta Medica Martiniana 2017. [DOI: 10.1515/acm-2017-0005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Abstract
The authors describe a case of a rare infectious disease of intra-articular tissues of the temporomandibular joint caused mainly by Pseudomonas aeruginosa. In scientific literature, under the heading invasive (malignant) external otitis, we can find cases of an infectious disease of the external acoustic meatus caused by a microbial agent of Pseudomonas aeruginosa which can subsequently penetrate into structures. However, a primary affliction of the abovementioned structures has not been described. Localisation and severity of the infection requires long-term and massive treatment with antibiotics.
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Affiliation(s)
- I. Malachovsky
- Clinic of Stomatology and Maxillofacial Surgery, Comenius University, Jessenius Faculty of Medicine and University Hospital Martin, Martin , Slovakia
| | - M. Janickova
- Clinic of Stomatology and Maxillofacial Surgery, Comenius University, Jessenius Faculty of Medicine and University Hospital Martin, Martin , Slovakia
| | - J. Stasko
- Clinic of Stomatology and Maxillofacial Surgery, Comenius University, Jessenius Faculty of Medicine and University Hospital Martin, Martin , Slovakia
| | - M. Kasaj
- Clinic of Stomatology and Maxillofacial Surgery, Comenius University, Jessenius Faculty of Medicine and University Hospital Martin, Martin , Slovakia
| | - V. Sadlonova
- Institute of Microbiology, Comeniu University, Jessenius Faculty of Medicine, Martin , Slovakia
| | - E. Novakova
- Institute of Microbiology, Comeniu University, Jessenius Faculty of Medicine, Martin , Slovakia
| | - P. Gengelova
- Clinic of Stomatology and Maxillofacial Surgery, Comenius University, Jessenius Faculty of Medicine and University Hospital Martin, Martin , Slovakia
| | - M. Smatanová
- Clinic of Stomatology and Maxillofacial Surgery, Comenius University, Jessenius Faculty of Medicine and University Hospital Martin, Martin , Slovakia
| | - D. Statelová
- Clinic of Stomatology and Maxillofacial Surgery, Comenius University, Jessenius Faculty of Medicine and University Hospital Martin, Kollarova Str.N. 2,036 59, Martin , Slovak Republic
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Abstract
Matrix-assisted laser desorption ionization - time-of-flight (MALDI-TOF) mass spectrometry enables to identify microorganisms by comparison of the protein content with reference spectra in the database. The aim of this study was to evaluate the efficacy of phenotypic identification of mycobacteria by MALDI-TOF mass spectrometry in laboratory practice. Seventy five isolates of mycobacteria were identified by molecular and phenotypic method, and the results were compared by MALDI-TOF. For MALDI-TOF, material was processed according to the Bruker Daltonics protocol and Mycobacterial Library database version 2.0, with 313 reference mycobacteria spectra. All except one of the 72 isolates agreed with regard to the species and genus by both methods. Forty three isolates were identified as the M. tuberculosis complex by MALDI-TOF. Thirty one isolates of nontuberculous mycobacteria were consistently identified by both methods to the species level. We conclude that MALDI-TOF mass spectrometry is an accurate method of bacterial identification. Simplicity, speed, and economic availability of the method makes it suitable for mycobacteria identification in a routine laboratory.
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Affiliation(s)
- M Neuschlova
- Department of Microbiology and Immunology, Jessenius Faculty of Medicine in Martin, Comenius University in Bratislava, Mala Hora 4B, 036 01, Martin, Slovakia
| | - M Vladarova
- Clinical Biochemistry, Joint Stock Company, Department of Clinical Microbiology, University of Zilina, 47A V. Spanyola Street, 010 01, Zilina, Slovakia
| | - J Kompanikova
- Department of Microbiology and Immunology, Jessenius Faculty of Medicine in Martin, Comenius University in Bratislava, Mala Hora 4B, 036 01, Martin, Slovakia
| | - V Sadlonova
- Department of Microbiology and Immunology, Jessenius Faculty of Medicine in Martin, Comenius University in Bratislava, Mala Hora 4B, 036 01, Martin, Slovakia
| | - E Novakova
- Department of Microbiology and Immunology, Jessenius Faculty of Medicine in Martin, Comenius University in Bratislava, Mala Hora 4B, 036 01, Martin, Slovakia.
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Sutovska M, Kocmalova M, Sadlonova V, Dokus K, Adamkov M, Luptak J, Franova S. Orai1 protein expression and the role of calcium release-activated calcium channels in the contraction of human term-pregnant and non-pregnant myometrium. J Obstet Gynaecol Res 2014; 41:704-11. [PMID: 25490950 DOI: 10.1111/jog.12626] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [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: 07/21/2014] [Accepted: 10/01/2014] [Indexed: 01/21/2023]
Abstract
AIM This experimental in vitro study examined differences in the expression and activity of calcium release-activated calcium (CRAC) channels of human term-pregnant and non-pregnant myometrium. MATERIAL AND METHODS The tissue samples were obtained from term-pregnant myometrium in labor of women undergoing cesarean section and from non-pregnant myometrium of women undergoing total hysterectomy due to uterine myoma. The expression of Orai1 protein, a pore-forming subunit of CRAC channels, in human myometrium was examined using immunohistochemistry. CRAC channel involvement in the amplitude and frequency of myometrial contractions was evaluated in vitro using a tissue bath method with a CRAC ion channel blocker 3-fluropyridine-4-carboxylic acid (FPCA). RESULTS Decreased Orai1 expression was observed in human term-pregnant laboring myometrium compared with non-pregnant myometrium. However, the initial oxytocin-induced contraction of myometrium was significantly suppressed at different doses of FPCA in both non-pregnant human isolated myometrium and non-pregnant myometrium. The frequency of contractions was the most significantly reduced at the lowest dose of FPCA in non-pregnant myometrium and remained suppressed at all doses of FPCA in term-pregnant myometrium. Salbutamol was shown as more effective in suppression of amplitude in term-pregnant isolated myometrium. CONCLUSION Our results provide the first information about the changes in the Orai1 protein expression and activity of human myometrial CRAC channels in term-pregnant laboring myometrium.
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Affiliation(s)
- Martina Sutovska
- Department of Pharmacology, Jessenius Faculty of Medicine Martin, Comenius University Bratislava, Martin, Slovak Republic
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Nosalova G, Fleskova D, Jurecek L, Sadlonova V, Ray B. Herbal polysaccharides and cough reflex. Respir Physiol Neurobiol 2013; 187:47-51. [DOI: 10.1016/j.resp.2013.03.015] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2012] [Revised: 03/27/2013] [Accepted: 03/27/2013] [Indexed: 02/05/2023]
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Nosalova G, Jurecek L, Hromadkova Z, Kostalova Z, Sadlonova V. Antioxidant activity of herbal polysaccharides and cough reflex. Adv Exp Med Biol 2013; 788:51-7. [PMID: 23835958 DOI: 10.1007/978-94-007-6627-3_8] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The extraction of Fallopia sachalinensis leaves resulted in two fractions (FS-1 and FS-2). Chemical and spectral analyses of samples revealed the prevalence of pectic polysaccharides with high galacturonic acid, arabinose, galactose, and rhamnose content. Arabinogalactan with a higher content of phenolic prevailed in the FS-1, whereas rhamnogalacturonan predominated in the FS-2 fraction. Both polysaccharides showed significant antioxidant activity according to DPPH and FRAP assays. Evaluation of antitussive activity in healthy adult conscious guinea pigs after oral application of 50 and 75 mg/kg of the FS-2 polysaccharide extracts showed a significant suppression of cough reflex, without an influence on specific airway resistance. The suppression of cough was comparable with that of codeine.
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Affiliation(s)
- G Nosalova
- Department of Pharmacology, Jessenius Faculty of Medicine, Comenius University, 26 Sklabinska St., 036 01, Martin, Slovakia,
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Franova S, Joskova M, Sadlonova V, Pavelcikova D, Mesarosova L, Novakova E, Sutovska M. Experimental model of allergic asthma. Adv Exp Med Biol 2012; 756:49-55. [PMID: 22836618 DOI: 10.1007/978-94-007-4549-0_7] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
The aim of the study was to prepare and evaluate the experimental model of allergic asthma. Changes in chough reflex, bronchoconstriction and the degree of inflammation were studied in ovalbumin (OVA) sensitized guinea pigs after 0, 7, 14, 21 days of exposure. The cough reflex was induced by citric acid inhalation in conscious animals in a double chamber body plethysmograph. Tracheal smooth muscle reactivity was assessed by examining the in vitro response to histamine (H) (10(-8)-10(-3) mol/l) and in vivo to H nebulization (10(-6) mol/l). BALF levels of IL-4, IL-5 and the eosinophil count were used as parameters of airway inflammation. After 7 days of OVA sensitization, there was an increase in tracheal smooth muscle contractility in vitro to cumulative concentration of H and an increase in cough parameters. After 14 days of OVA sensitization, there was a further increase in tracheal smooth muscle contractility to H, an increase in airway resistance, and a small increase in cough parameters. After 21 day of OVA sensitization, cough parameters were significantly reduced, airway resistance after H inhalation was increased, and there were significant increases in IL-4, IL-5, and eosinophils in BALF. In conclusion, progress in asthmatic inflammation during 21-day OVA sensitization caused a gradual increase in inflammatory mediators, a decline in cough reflex, and enhanced bronchoconstriction. This experimental model of allergic asthma can be used for pharmacological modulations of defense reflexes and inflammation.
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Affiliation(s)
- S Franova
- Department of Pharmacology, Comenius University, Martin, Slovakia.
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Sadlonova V. Response to ‘Effects of potassium ion channels in term pregnant myometrium’1. J Obstet Gynaecol Res 2011. [DOI: 10.1111/j.1447-0756.2011.01732.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Sadlonova V, Franova S, Dokus K, Janicek F, Visnovsky J, Sadlonova J. Participation of BKCa2+ and KATP potassium ion channels in the contractility of human term pregnant myometrium in in vitro conditions. J Obstet Gynaecol Res 2011; 37:215-21. [PMID: 21272145 DOI: 10.1111/j.1447-0756.2010.01340.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
AIM The aim of this study was to assess the participation of ligand-sensitive potassium large conductance calcium-activated ion channels (BK(Ca2+) ) and adenosine triphosphate (ATP)-sensitive potassium ion channels (K(ATP) ) using its openers (NS1619 and pinacidil) in the contractility of human term pregnant myometrium in in vitro conditions. METHODS Human myometrium tissue samples were collected from term pregnant laboring women who had to undergo cesarean section. The contractility of myometrium was induced by the application of oxytocin into the organ bath. Myometrial strips were incubated with the opener of BK(Ca2+) potassium ion channels NS1619 and its antagonist tetraethylammonium or with the opener of K(ATP) potassium ion channels pinacidil and its antagonist glibenclamide. RESULTS K(ATP) potassium ion channel's opener pinacidil significantly decreased amplitude of myometrial contractions (P < 0.05) as well as frequency of myometrial contractions (P < 0.05) provoked by oxytocin in human term pregnant myometrium in in vitro conditions. The inhibition of the human myometrial contractions of pinacidil was significantly antagonized by its specific antagonist glibenclamide (P < 0.05). BK(Ca2+) potassium ion channel's opener NS1619 did not significantly affect the contractile activity of human term pregnant myometrium induced by the application of oxytocin in in vitro conditions. CONCLUSION In our experimental study we found that the participation of BK(Ca2+) and K(ATP) potassium ion channels in the contractility of human term pregnant myometrium in labor is probably different.
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Affiliation(s)
- Vladimira Sadlonova
- Department of Pharmacology, Jessenius Faculty of Medicine, Comenius University, Martin, Slovakia.
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Joskova M, Franova S, Sadlonova V. Acute bronchodilator effect of quercetin in experimental allergic asthma. BRATISL MED J 2011; 112:9-12. [PMID: 21452772] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
OBJECTIVES The aim of our study was to investigate the acute effect of quercetin on experimental allergic asthma after single-dose oral administration. BACKGROUND Airway hyperresponsiveness is one of the main features of allergic asthma. None of quercetin experimental studies analysed the acute effect of this flavonol on the reactivity of airways both, in vivo and in vitro conditions. METHODS Our experiment was realized 21 days after the sensitization of guinea pigs with ovalbumin suspension. Changes in the reactivity of airways were studied using the whole body plethysmography in order to compare changes of the specific airway conductance between groups with and without quercetin treatment. Also changes in the reactivity of the tracheal smooth muscle dipped into the organ bath with Krebs-Henseleit solution were measured as the reaction on cumulative doses of the bronchoconstrictor mediators histamine and acetylcholine. Quercetin was added into the solution 30 minutes before the chemical mediators. The amplitude of tracheal smooth muscle precontracted with histamine or acetylcholine was used as a tracheal smooth muscle reactivity parameter in vitro. RESULTS Our results showed that quercetin (20 mg/kg) caused significant bronchodilation, both in vivo and in vitro. CONCLUSION Quercetin proved in laboratory conditions its ability to reduce hyperreactivity of airways as one of the main attribute of allergic asthma (Fig. 2, Ref. 23).
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Affiliation(s)
- M Joskova
- Department of Pharmacology, Jessenius Faculty of Medicine, Comenius University, Martin, Slovakia.
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Sadlonova V, Kubatka P, Kajo K, Ostatnikova D, Nosalova G, Adamicova K, Sadlonova J. Side effects of anastrozole in the experimental pre-menopausal mammary carcinogenesis. Neoplasma 2009; 56:124-9. [PMID: 19239326 DOI: 10.4149/neo_2009_02_124] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
UNLABELLED The aim of this study was to assess side effects of aromatase inhibitor anastrozole in the prevention of N-methyl-N-nitrosourea - induced pre-menopausal mammary carcinogenesis in female Sprague-Dawley rats. This model mimicked situation in healthy, but from the point of view of the development of breast cancer, high-risk pre-menopausal women. <p align="justify">Aromatase inhibitor anastrozole was used as a chemopreventive agent taken by the animals in the food during the whole period of time of the experiment. Group 1 - the control group had taken food without anastrozole, the groups 2 and 3 with anastrozole in various concentrations - 0.05 mg/1 kg of food (ANA 0.05) and 0.5 mg/1 kg of food (ANA 0.5). </p><p align="justify">In anastrozole-treated animals in comparison with untreated animals, macroscopic changes of uterus and vagina were not found. The values of absolute and relative wet weight of uterus and vagina in the groups ANA 0.05 and ANA 0.5 were comparable with the control. Histological examination did not show atrophic changes in endometrium of uterus and in epithelium of vagina in anastrozole-treated animals. In the group ANA 0.5 myometrium was significantly grosser than in the group ANA 0.05 (P<0.05). Anastrozole neither affects parameters of plasma lipid metabolism (triacylglycerols, total cholesterol, low - density lipoprotein cholesterol and high - density lipoprotein cholesterol) nor serum levels of sex hormones (estradiol, testosterone, dehydroepiandrosterone). Compact bone thickness in the groups with anastrozole was significantly increased in comparison with untreated animals (P<0.001). A significant increase in body weight was found in the group ANA 0.5 compared with the control group (P<0.01). The significant increase in body weight gain was not attended by the significant increase in food intake.</p><p align="justify">The side effects of aromatase inhibitor anastrozole in the prevention of N-methyl-N-nitrosourea - induced pre-menopausal mammary carcinogenesis in female Sprague-Dawley rats on myometrium, compact bone thickness and body weight gain were observed. </p> KEYWORDS pre-menopausal mammary carcinogenesis, chemoprevention, aromatase inhibitors, anastrozole, side effects, female rats.
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Affiliation(s)
- V Sadlonova
- Department of Pharmacology, Jessenius Faculty of Medicine, Comenius Univeristy, Slovak Republic.
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Kubatka P, Sadlonova V, Kajo K, Nosalova G, Fetisovova Z. Preventive effects of letrozole in the model of premenopausal mammary carcinogenesis. Neoplasma 2008; 55:42-46. [PMID: 18190239] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Single - agent therapy with aromatase inhibitors has no established role in premenopausal women with breast cancer. In this study, tumor suppressive effects of letrozole in the prevention of N-methyl-N-nitrosourea - induced mammary carcinogenesis in female Sprague-Dawley rats were evaluated. Letrozole was dietary administered in two concentrations - 1 mg/1 kg (LETRO 1), and 10 mg/1 kg (LETRO 10). Letrozole suppressed incidence of mammary gland cancer by 93 % (P<0.00002) in the group LETRO 1 in comparison with control animals. Total suppression of mammary carcinogenesis was observed in the group LETRO 10. In the groups with letrozole, uterine and vaginal atrophy was found at the end of experiment. In letrozole - treated animals in comparison with untreated animals, increased plasmatic triacylglycerol concentrations (P<0.0001) were observed, but total cholesterol and cholesterol of low- and high- density lipoprotein fractions were not significantly changed. An increase in body weight gain and food intake was found in the groups LETRO 1 and LETRO 10 compared with the control group (P<0.0001). The present study points to high tumor suppressive effects of letrozole in premenopausal model of mammary carcinogenesis in female rats.
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Affiliation(s)
- P Kubatka
- Department of Pharmacology, Jessenius Faculty of Medicine, Comenius University, Sklabinska, Martin, Slovak Republic.
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Kubatka P, Sadlonova V, Kajo K, Machalekova K, Ostatnikova D, Nosalova G, Fetisovova Z. Neoplastic effects of exemestane in premenopausal breast cancer model. Neoplasma 2008; 55:538-543. [PMID: 18999884] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Aromatase inhibitor exemestane as a single - agent has no established role in the treatment of premenopausal breast cancer women. The aim of this study was to evaluate preventive effects of exemestane in the model of premenopausal Nmethyl- N-nitrosourea - induced mammary carcinogenesis in female rats. Exemestane treatment begun 7 days prior to carcinogen administration and continued next 12 weeks - till the end of experiment. Exemestane was dietary administered in two concentrations of 1 mg / 1kg (EXE 1), or 10 mg/1 kg (EXE 10), respectively. Exemestane increased the tumor frequency by 80.5 % (P=0.034) in the group EXE 1 and by 61.5 % (P=0.045) in the group EXE 10 in comparison with control animals. In the group EXE 10, the incidence of mammary tumors was increased by 11.5 % (P=0.31) and tumor volume by 41.5 % (P=0.23), also the latency was shortened by 8 days (P=0.078) compared with controls. In the groups with exemestane, changes in weights and histology of uterus and vagina were not found at the end of experiment. Exemestane did not alter serum concentrations of estradiol, testosterone and dehydroepiandrosterone. In the group EXE 10 in comparison with untreated animals, exemestane decreased serum concentrations of triacylglycerols by 9 % (P=0.032), total cholesterol by 19.5 % (P=0.0002) and cholesterol of low - density and high - density lipoprotein fractions by 41 % (P<0.0001), or 21.5 % (P=0.0002), respectively. In the group EXE 1, the decrease in cholesterol of low-density lipoprotein fraction by 22.5 % (P=0.0005) was recorded. An increase in food intake (P=0.023) and body weight gain (P=0.036) was found in the group EXE 10 compared with the control group (P<0.05). The present study points to apparent tumor - promoting effects of dietary administered exemestane in the model of premenopausal mammary carcinogenesis in female rats. Exemestane as a steroidal agent indicated androgenic effects on rat lipid metabolism in this experiment.
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Affiliation(s)
- P Kubatka
- Department of Pharmacology, Jessenius Faculty of Medicine, Comenius University, Martin, Slovak Republic.
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Kubatka P, Sadlonova V, Nosalova G, Sadlonova J. Aromatase inhibitors in the breast cancer therapy and their potential using in the prevention setting. BRATISL MED J 2007; 108:271-275. [PMID: 17972540] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Long term exposure to estradiol is associated with an increased risk of breast cancer. Aromatase inhibitors, suppressing tumour and plasma estrogen levels by blocking conversion of testosteron to estrogen, have been proven to provide the most effective endocrine therapy in metastatic and adjuvant setting in postmenopausal women. Questions remains about the long term side effects and safety profile of aromatase inhibitors. The effectiveness and safety of aromatase inhibitors therapy in premenopausal breast cancer patients is unknown, this needs to be further investigated. Although tamoxifen represents the gold standard for prevention therapy at present, results of ongoing studies may indicate a role of aromatase inhibitors in prevention of breast cancer (Tab. 2, Ref. 22).
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Affiliation(s)
- P Kubatka
- Department of Pharmacology, Jessenius Faculty of Medicine, Comenius University, Martin, Slovakia.
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